CN107197532A - Access processing method and device - Google Patents

Access processing method and device Download PDF

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Publication number
CN107197532A
CN107197532A CN201610347194.1A CN201610347194A CN107197532A CN 107197532 A CN107197532 A CN 107197532A CN 201610347194 A CN201610347194 A CN 201610347194A CN 107197532 A CN107197532 A CN 107197532A
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CN
China
Prior art keywords
terminal
time domain
length
subset
accidental access
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Granted
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CN201610347194.1A
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Chinese (zh)
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CN107197532B (en
Inventor
刘锟
戴博
鲁照华
夏树强
陈宪明
方惠英
石靖
张雯
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2017/074599 priority Critical patent/WO2017157152A1/en
Publication of CN107197532A publication Critical patent/CN107197532A/en
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Publication of CN107197532B publication Critical patent/CN107197532B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Abstract

The invention provides a kind of access processing method and device, wherein, this method includes：Sequence corresponding with terminal in terminal selection arrangement set；Above-mentioned terminal generates accidental access signal according at least to corresponding sequence；Above-mentioned terminal sends the accidental access signal to base station.By the present invention, the problem of various types of terminals are all successfully accessed system can not be ensured by solving present in correlation technique, and then is realized various types of terminals and can be successfully accessed the effect of system.

Description

Access processing method and device
Technical field
The present invention relates to the communications field, in particular to a kind of access processing method and device.
Background technology
Machine type communication (Machine Type Communication, referred to as MTC) user terminal (User Equipment, referred to as UE) (hereinafter referred to as MTC UE), also known as machine to machine (Machine to Machine, abbreviation For M2M) user terminal is the main application form of Internet of Things at this stage.In third generation collaborative project tissue (The 3rd Generation Partnership Project, referred to as 3GPP) disclose several suitable in technical report TR45.820V200 For the technology of honeycomb level Internet of Things, wherein, based on cellular arrowband Internet of Things (Narrow Band Internet of Things, referred to as NB-IoT) technology is the most noticeable.The quantity of user communication device in view of being supported in Internet of Things is Very huge, the terminal type of support also can be very more, including only support the terminal of single sub-carrier base band processing capacity And the terminal of multiple subcarrier base band processing capacities can be supported.So how base station ensures various types of terminals all System is successfully accessed, NB-IoT technologies also lack an effective solution at present.
For the problem of various types of terminals are all successfully accessed system can not be ensured present in correlation technique, at present still Effective solution is not proposed.
The content of the invention
The invention provides a kind of access processing method and device, at least to solve not ensureing present in correlation technique The problem of various types of terminals are all successfully accessed system.
According to an aspect of the invention, there is provided a kind of access processing method, it is characterised in that including：Terminal is selected Sequence corresponding with the terminal in arrangement set；The terminal is according at least to the corresponding sequence generation Stochastic accessing letter Number；The terminal sends the accidental access signal to base station.
Alternatively, the arrangement set includes the sequence that J bar sequence lengths are N, wherein, index sequence for j Expression-form is0≤j≤J-1,0≤n≤N-1, J are positive integer, and N is just whole Number.
Alternatively, the arrangement set includes R sequence subset conjunction, and the R sequence subset closes and be allocated to different ends End set；Wherein, R is positive integer.
Alternatively, sequence corresponding with the terminal includes in the terminal selection arrangement set：The terminal is from the R Individual sequence subset determines that sequence subset corresponding with the terminal set belonging to itself is closed in closing；Sequence of the terminal from determination A sequence is selected to be used as the corresponding sequence in set.
Alternatively, the terminal determines sequence corresponding with the terminal set belonging to itself from R sequence subset conjunction Row subclass includes：The terminal from the R sequence subset conjunction in selection (Y+1) individual sequence subset cooperation for itself institute The corresponding sequence subset of terminal set of category is closed, wherein Y=Mod (Cell ID, R), and Cell ID are the small of terminal access Area's identification index.
Alternatively, the R sequence subset is closed is configured to R different terminal set respectively.
Alternatively, methods described includes at least one of：When the quantity of terminal set is 2,2 different termination sets First terminal set and second terminal set are combined into, the first terminal set and the second terminal set meet following condition At least one：The terminal that the first terminal set includes is to support the terminal of multiple subcarrier simultaneous transmissions, and described second The terminal that terminal set includes is only to support the terminal of single sub-carrier transmission；The terminal that the first terminal set includes is to adopt The terminal of upstream data is transmitted with multiple subcarriers, and the terminal that the second terminal set includes is to be passed using single sub-carrier The terminal of defeated upstream data；The terminal that the first terminal set includes is using multiple subcarrier simultaneous transmission Msg3 message Terminal, and the terminal that the second terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier；Described first The terminal that the terminal that terminal set includes is transmitted over the plurality of subcarriers for Msg3 message bearings, and the second terminal set bag The terminal included is the terminal that Msg3 message is only carried on single sub-carrier transmission；The terminal that the first terminal set includes is branch Hold single sub-carrier transmission and subcarrier spacing is fsc1Terminal, the terminal that the second terminal set includes for support it is single Subcarrier is transmitted and subcarrier spacing is fsc2Terminal；The terminal that the first terminal set includes is to use single sub-carrier Transmit upstream data and subcarrier spacing is fsc1Terminal；The terminal that the second terminal set includes is to use single sub- load Ripple transmits upstream data and subcarrier spacing is fsc2Terminal；The terminal that the first terminal set includes is to use single son Carrier-wave transmission Msg3 message and subcarrier spacing are fsc1Terminal, the terminal that the second terminal set includes is using single Subcarrier transmits Msg3 message and subcarrier spacing is fsc2Terminal；The terminal that the first terminal set includes disappears for Msg3 Breath is only carried on single sub-carrier transmission and subcarrier spacing is fsc1Terminal, the terminal that the second terminal set includes is Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc2Terminal；What the first terminal set included Terminal is the terminal that the information content carried in Msg3 message is Size1, and the terminal that the second terminal set includes disappears for Msg3 The information content carried in breath is Size2 terminal, wherein, Size1 is not equal to Size2；When the quantity of terminal set is 3,3 Different termination sets is combined into first terminal set, second terminal set and third terminal set, the first terminal set, described Second terminal set and the third terminal set meet at least one following condition：The terminal that the first terminal set includes To support the terminal of multiple subcarrier simultaneous transmissions, the terminal that the second terminal set includes passes for only support single sub-carrier Defeated and subcarrier spacing is fsc1Terminal, the terminal that the third terminal set includes for only support single sub-carrier transmission and Subcarrier spacing is fsc2Terminal；The terminal that the first terminal set includes is to transmit upstream data using multiple subcarriers Terminal, the terminal that the second terminal set includes be use single sub-carrier transmit upstream data and subcarrier spacing for fsc1Terminal；The terminal that the third terminal set includes is to transmit upstream data and subcarrier spacing using single sub-carrier For fsc2Terminal；The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described The terminal that second terminal set includes is to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc1Terminal, institute The terminal that stating third terminal set includes is to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc2Terminal； The terminal that the first terminal set includes is the terminal that Msg3 message bearings are transmitted over the plurality of subcarriers, the second terminal The terminal that gathering includes is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc1Terminal, described The terminal that three terminal set include is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc2Terminal； The terminal that the first terminal set includes is the terminal that the information content carried in Msg3 message is Size1, the second terminal It is the terminal that the information content carried in Msg3 message is Size2, the end that the third terminal set includes to gather the terminal that includes End is the terminal that the information content carried in Msg3 message is Size3, wherein, Size1, Size2, Size3 are not mutually equal；Work as terminal When the quantity of set is 4,4 different termination sets are combined into first terminal set, second terminal set, third terminal set and the Four terminal set, the first terminal set, the second terminal set, the third terminal set and the 4th termination set Conjunction meets at least one following condition：The terminal that the first terminal set includes is the multiple subcarrier simultaneous transmissions of support and son Carrier wave is at intervals of fsc1Terminal, the terminal that the second terminal set includes is supports multiple subcarrier simultaneous transmissions and son is carried Wave spacing is fsc2Terminal, the terminal that the third terminal set includes for only support single sub-carrier transmission and subcarrier between It is divided into fsc3Terminal, the terminal that the 4th terminal set includes for only support single sub-carrier transmission and subcarrier spacing be fsc4Terminal；The terminal that the first terminal set includes is to transmit upstream data and subcarrier spacing using multiple subcarriers For fsc1Terminal, the terminal that the second terminal set includes is to be transmitted using multiple subcarriers between upstream data and subcarrier It is divided into fsc2Terminal, the terminal that the third terminal set includes is to transmit upstream data and subcarrier using single sub-carrier At intervals of fsc3Terminal；The terminal that the 4th terminal set includes is to transmit upstream data and son load using single sub-carrier Wave spacing is fsc4Terminal；The terminal that the first terminal set includes is to transmit Msg3 message and son using multiple subcarriers Carrier wave is at intervals of fsc1Terminal, the terminal that the second terminal set includes be using multiple subcarriers transmit Msg3 message and Subcarrier spacing is fsc2Terminal, the terminal that the third terminal set includes be using single sub-carrier transmit Msg3 message And subcarrier spacing is fsc3Terminal, the terminal that the 4th terminal set includes be using single sub-carrier transmission Msg3 disappear Cease and subcarrier spacing is fsc4Terminal；The terminal that the first terminal set includes is that Msg3 message bearings are carried in many height Transmitted on ripple and subcarrier spacing is fsc1Terminal, the terminal that the second terminal set includes be Msg3 message bearings many It is f that individual subcarrier, which uploads defeated and subcarrier spacing,sc2Terminal, the terminal that the third terminal set includes be Msg3 message only It is carried on single sub-carrier transmission and subcarrier spacing is fsc3Terminal, the terminal that the 4th terminal set includes be Msg3 Message is only carried on single sub-carrier transmission and subcarrier spacing is fsc4Terminal；The terminal that the first terminal set includes The terminal for being Size1 for the information content carried in Msg3 message, the terminal that the second terminal set includes is in Msg3 message The information content of carrying is Size2 terminal, and the terminal that the third terminal set includes is the information content that carries in Msg3 message For Size3 terminal, the terminal that the 4th terminal set includes is the end that the information content carried in Msg3 message is Size4 End, wherein, Size1, Size2, Size3, Size4 are not mutually equal.
Alternatively, the J bars sequence length is that N sequence meets at least one of：The J bars sequence length is N sequence is orthogonal code sequence；The J bars sequence length is that N sequence is defined orthogonal code sequence；The J bars sequence The sequence that length is N is predefined sequence.
Alternatively, it is describedMeet at least one of：J pairs of different values The Code answeredjInOrthogonal code, or quasiorthogonal code word each other each other；The j of different values is corresponding CodejInOrthogonal code, or quasiorthogonal code word each other each other；The corresponding Code of j of different valuesj InOrthogonal code, or quasiorthogonal code word each other each other, wherein, 0≤i≤N/2-1.
Alternatively, above-mentioned N value is one below：2,4,6,8.
Alternatively, J=1 is worked as, and during N=4, J bars sequence length includes at least one of for N sequence：Wherein, A is C is constant,
Alternatively, methods described includes at least one of：Work as J=1, and during N=4, J bars sequence length is N sequence bag Include at least one of： When working as R=2, J=2, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, Code0 And Code1In the terminal that is configured in first terminal set, another is configured to the end in second terminal set End；When working as R=2, J=2, and N=8, J bars sequence length includes at least one of for N sequence： Wherein, Code0And Code1In the terminal that is configured in first terminal set, another It is configured to the terminal in second terminal set；When working as R=3, J=3, and N=4, J bars sequence length for N sequence include with It is at least one lower： In any 3； In any 3； Wherein, 3 sequence lengths are individually configured to the terminal in 3 terminal set for N sequence；Work as R=4, J=4, and N=4 When, J bars sequence length includes at least one of for N sequence： Wherein, 4 sequence lengths are individually configured to 4 terminals for N sequence Terminal in set；Wherein, A isC is constant,
Alternatively, when sequence corresponding with the terminal isWhen, the terminal is at least Included according to the corresponding sequence generation accidental access signal：The terminal determines that index is f on frequency domainnSubcarrier and time domain on Continuous K symbol is taken to sendK-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is The K symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is Wherein, 0≤k≤K-1；The terminal is according at least to describedIt is determined that it is described with Machine accesses signal.
Alternatively, the terminal is according at least to describedIt is determined that it is described with Machine access signal includes：The expression formula of corresponding time domain isWherein 0≤t≤ Tk, TkFor the length of k-th of time-domain symbol,It is f for indexnSubcarrier take frequency domain resource, FOffsetFor frequency offset Amount；And/or, it is T when the time domain sampling intervalsWhen,Corresponding time domainExpression formula beWherein, 0≤t≤Tk, TkFor The length of k-th of time-domain symbol, 0≤k≤K-1,0≤q≤Q-1,For time domain sampling point quantity；The terminal is continuous K symbol on sendTime-domain expression beThe terminal is according at least to describedDetermine the accidental access signal.
Alternatively, the terminal is according at least to describedDetermine the Stochastic accessing letter Number include：The terminal generates cyclic prefix CP according to the following formulan, CPn={ Sn[QK-L+1],…,Sn[QK] }, L represents CPnMiddle bag The time-domain sampling interval T includedsQuantity；Then the terminal is in subcarrier fnThe expression formula of the accidental access signal of upper transmission is Groupn={ CPn,Sn, the terminal is in subcarrier f0,f1,…,fN-1The expression formula of the accidental access signal of upper transmission is {Group0,Group1,…GroupN-1}；Wherein, the different Group of n valuesnDifferent time-domain symbols are taken in time domain.
Alternatively, Group0~GroupN-1To constitute the unit Unit of the accidental access signal, the terminal sends institute State accidental access signal includes to base station：The terminal determines that a Unit is the accidental access signal, and will be described Accidental access signal repeats to be transmitted for H times；And/or, the terminal by the Unit in time domain repeat H time formed described in Machine accesses signal, and sends the accidental access signal.
Alternatively, the terminal is in subcarrier fnOn be sent completely accidental access signal GroupnAfterwards, it is necessary to introduce the time Length is Gap interval.
Alternatively, including at least one of：Work as N=4, K=5, CPnTime domain length be 266.7us, transmission connect at random When entering a width of 3.75kHz of subcarrier spacing or sub-carrier bin of signal, the time domain length of the Gap is 0.4ms；Work as N=4, K= 5, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, The time domain length of the Gap is 0.6ms；Work as N=4, K=5, CPnTime domain length be 8192*Ts, send accidental access signal Subcarrier spacing or sub-carrier bin a width of 3.75kHz when, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns； Work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or sub-carrier bin it is a width of During 3.75kHz, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns.
Alternatively, H times of the Unit repeats to include Y Group, and the index for defining Y Group is Group0~ GroupY-1, wherein, Y=H*N；When the terminal completes GroupstartTo GroupendY Group accidental access signal altogether Transmission after, it is necessary to introduce time span be Gap interval；Wherein, 0≤start≤end≤Y-1, y≤Y.
Alternatively, start=offset+y × Ngap, wherein, NgapTo introduce the quantity at the interval that time span is Gap； Offset is first GroupstartIndex amount of bias；Or, start=y × Ngap, wherein, NgapIt is long to introduce the time Spend the quantity at the interval for Gap.
Alternatively,OrOr Ngap=Y/y.
Alternatively, end=start+y-1.
Alternatively, the Gap meets at least one following condition：Y × L_G+Gap=T × TimeUnit, wherein, L_G is The time span of the Group, Gap >=0, T is positive integer, and TimeUnit is a kind of linear module of time span；y×L_G+ Gap=T × TimeUnit, wherein L_G are the time span of the Group, Gap >=0, T be positive integer and T be meet T × TimeUnit>Y × L_G minimum value, TimeUnit is a kind of linear module of time span.
Alternatively, the terminal after Unit accidental access signal is sent completely, it is necessary to introduce the time Length is Gap interval.
Alternatively, including at least one of：Work as N=4, K=5, CPnTime domain length be 266.7us, transmission connect at random When entering a width of 3.75kHz of subcarrier spacing or sub-carrier bin of signal, the time domain length of the Gap is 0.6ms；Work as N=4, K= 5, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, The time domain length of the Gap is 0.4ms；Work as N=4, K=5, CPnTime domain length be 8192*Ts, send accidental access signal Subcarrier spacing or sub-carrier bin a width of 3.75kHz when, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns； Work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or sub-carrier bin it is a width of During 3.75kHz, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns.
Alternatively, the index for defining the H repetition of the Unit is Unit0~UnitH-1, when the terminal is completed UnitstartTo Unitend, it is necessary to introduce the interval that time span is Gap after y Unit accidental access signal is sent altogether； Wherein, 0≤start≤end≤Y-1, y≤Y.
Alternatively, start=offset+y × Ngap, wherein, NgapTo introduce the quantity at the interval that time span is Gap； Offset is first UnitstartIndex amount of bias；Or, start=y × Ngap, wherein, NgapTo introduce time span For the quantity at Gap interval.
Alternatively,OrOr Ngap=Y/y.
Alternatively, end=start+y-1.
Alternatively, the Gap meets at least one following condition：Y × L_U+Gap=T × TimeUnit, wherein, L_G is The time span of the Unit, gap >=0, T is positive integer, and TimeUnit is a kind of linear module of time span；y×L_U+ Gap=T × TimeUnit, wherein, L_G is the time span of the Unit, Gap >=0, T be positive integer and T be meet T × TimeUnit>Y × L_U minimum value, TimeUnit is a kind of linear module of time span.
Alternatively, including at least one of：Work as N=4, K=5, H=1, CPnTime domain length be 8192*Ts, send During a width of 3.75kHz of the subcarrier spacing or sub-carrier bin of accidental access signal, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=2, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier Interval or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts= 32.55ns；Work as N=4, K=5, H=4, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing Or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=8, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or a width of 3.75kHz of sub-carrier bin When, Gap time domain length is 24576*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=16, CPnTime domain length be 8192*Ts, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=1, CPnTime domain length be 2048*Ts, transmission connect at random When entering a width of 3.75kHz of subcarrier spacing or sub-carrier bin of signal, Gap time domain length is 12288*Ts, wherein, Ts= 32.55ns；Work as N=4, K=5, H=2, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing Or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 24576*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=4, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or a width of 3.75kHz of sub-carrier bin When, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=8, CPnTime domain length be 2048*Ts, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts=32.55ns；Work as N=4, K=5, H=16, CPnTime domain length be 2048*Ts, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 12288*Ts, Wherein, Ts=32.55ns；Work as N=4, K=5, H=1, CPnTime domain length be 266.7us, send accidental access signal son Carrier wave interval or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.6ms；Work as N=4, K=5, H=2, CPnWhen Length of field is 266.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain Length is 0.2ms or 1.2ms；Work as N=4, K=5, H=4, CPnTime domain length be 266.7us, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.4ms；Work as N=4, K=5, H=8, CPn's Time domain length is 266.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap when Length of field is 0.8ms；Work as N=4, K=5, H=16, CPnTime domain length be 266.7us, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.6ms；Work as N=4, K=5, H=1, CPnTime domain Length is 66.7us, and when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain is long Spend for 0.4ms；Work as N=4, K=5, H=2, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing Or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.8ms；Work as N=4, K=5, H=4, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.6ms；Work as N=4, K=5, H=8, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son When carrier bandwidths are 3.75kHz, Gap time domain length is 0.2ms or 1.2ms；Work as N=4, K=5, H=16, CPnTime domain it is long Spend for 66.7us, when sending a width of 3.75kHz of subcarrier spacing or sub-carrier bin of accidental access signal, Gap time domain length For 0.4ms.
Alternatively, the value of the H is determined according at least to the grade of the terminal.
Alternatively, the grade of the terminal includes at least one of：Coverage enhancement grade；Physical channel repeats transmission etc. Level；The repetition of the message or signaling that are carried on physical channel sends grade.
Alternatively, the terminal sends the accidental access signal and included to the base station：The terminal determines to be used to send out Send the RACH of the accidental access signal；The terminal sends institute by the RACH to the base station State accidental access signal.
Alternatively, random access channel resource includes one or more running time-frequency resource set Setm, wherein, the Setm Include F subcarrier or subchannel on frequency domain, length is at least P Unit length in time domain, m is the SetmIn time domain Index, F is positive integer, and P is positive integer.
Alternatively, the SetmIncluding P subset subset, wherein, the subset on frequency domain with the SetmConfiguration Identical subcarrier, the length that subset length in time domain is 1 Unit.
Alternatively, group carrier wave is at intervals of 3.75kHz, during F=12, in the SetmThe front and rear frequency of the frequency resource of occupancy 7.5kHz protection bandwidth is respectively configured with rate resource；And/or, group carrier wave is at intervals of 3.75kHz, during F=16, in the Setm Lower sideband is respectively reserved with 7.5kHz protection bandwidth in the frequency resource of occupancy.
Alternatively, when upstream bandwidth includes 48 subcarriers, and during F=12, upstream bandwidth at most configures 4 Setm, and Each SetmInclude F=12 subcarrier or subchannel, different Set on frequency domainmThe subcarrier or subchannel included on frequency domain It is not overlapping.
Alternatively, the Set that the terminal or terminal group for being designated as same grade by U bit information are matched somebody with somebodymFrequency domain Position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U=2 or 4.
Alternatively, when upstream bandwidth includes 48 subcarriers, and during F=16, upstream bandwidth at most configures 3 Setm, and Each SetmInclude F=16 subcarrier or subchannel, different Set on frequency domainmThe subcarrier or subchannel included on frequency domain It is not overlapping.
Alternatively, the Set that the terminal or terminal group for being designated as same grade by U bit information are matched somebody with somebodymFrequency domain Position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U=2 or 3.
Alternatively, methods described includes at least one of：Work as N=4, during K=5, the SetmLength is in time domain 7ms, the CPnTime domain length be 266.7us, P=1；Work as N=4, during K=5, the SetmLength is 13ms in time domain, The CPnTime domain length be 266.7us, P=2；Work as N=8, during K=5, the SetmLength is 13ms in time domain, described CPnTime domain length be 266.7us, P=1；Work as N=4, during K=5, the SetmLength is 26ms, the CP in time domainn's Time domain length is 266.7us, P=4；Work as N=8, during K=5, the SetmLength is 26ms, the CP in time domainnTime domain Length is 266.7us, P=2；Work as N=4, during K=5, the SetmLength is 32ms, the CP in time domainnTime domain length For 266.7us, P=5；Work as N=4, during K=5, the SetmLength is 64ms, the CP in time domainnTime domain length be 266.7us, P=10；Work as N=8, during K=5, the SetmLength is 64ms, the CP in time domainnTime domain length be 266.7us, P=5；Work as N=4, during K=5, the SetmLength is 6ms, the CP in time domainnTime domain length be 66.7us, P=1；Work as N=4, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=2；Work as N=8, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=1；Work as N=4, during K=5, the SetmLength is 17ms, the CP in time domainnTime domain length be 66.7us, P=3；Work as N=4, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=4；Work as N=8, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=2；Work as N=4, during K=5, the SetmLength is 28ms, the CP in time domainnTime domain length be 66.7us, P=5；Work as N=4, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=6；Work as N=8, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=3.
Alternatively, described method includes at least one of：Work as N=4, during K=5, the SetmThe length in time domain During for 7ms, the random access channel resource includes 0.6ms guard time；Work as N=4, during K=5, the SetmIn time domain When upper length is 26ms, the random access channel resource includes 0.4ms guard time；Work as N=8, during K=5, the Setm When length is 26ms in time domain, the random access channel resource includes 0.4ms guard time；Work as N=4, during K=5, institute State SetmWhen length is 6ms in time domain, the random access channel resource includes 0.4ms guard time；Work as N=4, K=5 When, the SetmWhen length is 12ms in time domain, the random access channel resource includes 0.8ms guard time；Work as N= When 8, K=5, the SetmWhen length is 12ms in time domain, when the random access channel resource includes 0.8ms protection Between；Work as N=4, during K=5, the SetmWhen length is 17ms in time domain, the random access channel resource includes 0.2ms's Guard time；Work as N=4, during K=5, the SetmWhen length is 23ms in time domain, the random access channel resource includes 0.6ms guard time；Work as N=8, during K=5, the SetmWhen length is 23ms in time domain, the RACH money Source includes 0.6ms guard time；Work as N=4, during K=5, the SetmWhen length is 34ms in time domain, the Stochastic accessing Channel resource includes 0.4ms guard time；Work as N=8, during K=5, the SetmIn time domain length be 34ms when, it is described with Machine access channel resource includes 0.4ms guard time.
Alternatively, two adjacent Set of time domainmBetween be spaced V very first time unit, wherein, V is integer, described the One chronomere includes at least one of：The time domain length of one or more frames, the time domain length of one or more subframes, Z1 Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit time domain length, wherein, Z1、Z2、Z3、Z4It is positive integer.
Alternatively, two adjacent Set of time domainmBetween be spaced V very first time unit, wherein, V is integer, described the One chronomere includes Z5Individual subset time domain length, wherein, Z5For positive integer.
Alternatively, methods described includes at least one of：V value includes at least one of：V=0；V=2y, its In, y is the integer more than or equal to 0；The V very first time unit is continuously distributed in time domain or discrete distribution；When described Two adjacent Set of domainmF subcarrier or subchannel described in identical are taken on frequency domain.
Alternatively, SetmConfiguration cycle be L very first time unit, wherein, L is positive integer, the very first time list Position includes at least one of：The time domain length of one or more frames, the time domain length of one or more subframes, Z1Second, Z2In the least Second, Z3Individual SetmTime domain length, Z4Individual Unit time domain length, wherein, Z1、Z2、Z3、Z4It is positive integer.
Alternatively, SetmConfiguration cycle be L very first time unit, wherein, L is positive integer, the very first time list Position includes Z5Individual subset time domain length, Z5For positive integer.
Alternatively, L=2z, wherein, z is the integer more than or equal to 0.
Alternatively, methods described includes at least one of：Described 2zIndividual very first time unit is continuously distributed in time domain Or discrete distribution；Z values are { 0,1,2,3,4,5,6,7 }；Two adjacent Set of time domainmF described in identical is taken on frequency domain Individual subcarrier or subchannel.
Alternatively, in the SetmConfiguration cycle at most configuration L1The individual subset, the index of the subset is Subset0 to subset (L1- 1), wherein, hierarchy index includes for g corresponding subset allocation plans of terminal：Hierarchy index The Unit is repeated into Repetition in time domain for g terminalgIt is secondary to send, in a SetmConfiguration cycle in, be Hierarchy index configures continuous Repetition for g terminalgIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：Its In, 0≤g≤G-1, G is the quantity of the grade of the terminal divided.
Alternatively, different SetmConfiguration cycle between, hierarchy index be g the corresponding subset allocation plans of terminal It is identical.
Alternatively, in the SetmConfiguration cycle at most configuration L1The individual subset, the index of the subset is Subset0 to subset (L1- 1), wherein, hierarchy index includes for g corresponding subset allocation plans of terminal：Hierarchy index The Unit is repeated into Repetition in time domain for g terminalgIt is secondary to send, and be that the terminal that the hierarchy index is g is matched somebody with somebody Put continuous ChanceNumg×RepetitiongIndividual subset, wherein ChanceNumg≥1。
Alternatively, in a SetmConfiguration cycle in, the ChanceNumg×RepetitiongIndividual subset Middle starting subset indexes StartingSubsetIndexgCalculated according to formula below：Wherein, 0≤g≤G-1, G are the terminal divided Grade quantity.
Alternatively, starting subset indexes are StartingSubsetIndexgChanceNumg×RepetitiongIt is individual In subset, ChanceNum is configured withgIt is individual first send resource, wherein, it is described first send resource be used for the Unit when Repetition is repeated on domaingIt is secondary to send.
Alternatively, the ChanceNumgIndividual first sends the starting subset of c-th first transmission resources in resource IndexCalculated according to formula below：
Alternatively, in the SetmConfiguration cycle at most configuration L1The individual subset, the index of the subset is Subset0 to subset (L1- 1), wherein, hierarchy index includes for g corresponding subset allocation plans of terminal：Hierarchy index The Unit is repeated into Repetition in time domain for g terminalgIt is secondary to send, and the hierarchy index is g terminal configuration There is ChanceNumg×RepetitiongIndividual subset, ChanceNumg≥1。
Alternatively, in a SetmConfiguration cycle in, the ChanceNumg×RepetitiongIndividual subset Index be subset 0 to subset (ChanceNumg×Repetitiong-1), and since subset 0, index is continuous RepetitiongIndividual subset be one first transmission resource, wherein, it is described first send resource be used for the Unit when Repetition is repeated on domaingIt is secondary to send, the Repetition in the first transmission resourcegIndividual subset is in time domain Continuously distributed, the different corresponding subset discrete distributions in time domain of the first transmission resource.
Alternatively, in the SetmConfiguration cycle in including G grade terminal it is corresponding first transmission resource, its In, hierarchy index sends resource for g terminal corresponding described first and Repetition is repeated in time domain for the Unitg Secondary to send, it is N that the terminal corresponding described first that hierarchy index is g, which sends resource size,gIt is individual It is g's for level index The corresponding Set of terminalm, 0≤g≤G-1.
Alternatively, in the SetmConfiguration cycle in, terminal is sequentially allocated according to the ascending orders of hierarchy index g There is NgIt is individualResource.
Alternatively, Ng>=1 or Ng>=0, and work as NgWhen=0, represent in the SetmConfiguration cycle in be configured without grade Index and send resource for g terminal corresponding described first.
Optionally, in the SetmConfiguration cycle in, be hierarchy index be g terminal configuration NgIt is individualIn resource Adjacent twoBetween time domain interval be LgIndividual second chronomere, wherein, Lg≥0。
Optionally, the corresponding L of terminal of different brackets indexgIt is identical.
Optionally, in the SetmConfiguration cycle in, different brackets index the corresponding N of terminalgIt is individualResource it Between, it is spaced LβIndividual second chronomere, wherein, Lβ≥0。
Optionally, in the SetmConfiguration cycle in, different brackets index the corresponding N of terminalgIt is individualResource it Between, it is spaced LgIndividual second chronomere.
Optionally, hierarchy index is the g corresponding N of terminalgIt is individualFirst in resourceTime domain starting resource position Put with it is describedConfiguration cycle in time domain starting resource position it is identical；Or, hierarchy index is the g corresponding N of terminalgIt is individualFirst in resourceTime domain starting resource position with it is describedConfiguration cycle in time domain starting resource position deposit In offset, wherein, the offset is predetermined or is what base station was configured.
Optionally, the terminal of different brackets index is correspondingIt is identical.
Alternatively, the SetmConfiguration cycle length be D SetmTime domain length, wherein, D is positive integer.
Alternatively, D=2x, x is the integer more than or equal to 0.
Alternatively, in the SetmConfiguration cycle at most configuration D*P subset, the index of the subset For subset0 to subset (D*P-1), wherein, hierarchy index includes for the g corresponding subset allocation plans of terminal：Grade Index and the Unit is repeated into Repetition in time domain for g terminalgIt is secondary to send, in a SetmConfiguration cycle It is interior, it is that the terminal that hierarchy index is g configures continuous RepetitiongIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：Its In, 0≤g≤G-1, G is the quantity of the grade of the terminal divided.
Alternatively, the different SetmConfiguration cycle between, hierarchy index for g terminal corresponding subset configurations Scheme is identical.
Alternatively, when upstream bandwidth include 48 sub- carrier waves at intervals of 3.75kHz subcarrier when, the sub-carrier indices For 0~47, wherein, index as 0,1,14,15,16,17,30,31,32,33,46,47 subcarrier is not allocated to the Setm。
Alternatively, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F=24, and described SetmStarting sub-carrier indices be 2 when, index for 2~25 sub-carrier configuration give the Setm。
Alternatively, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F=36, and described SetmStarting sub-carrier indices be 2 when, index for 2~37 sub-carrier configuration give the Setm。
Alternatively, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F=24, and described SetmStarting sub-carrier indices be 18 when, index for 18~41 sub-carrier configuration give the Setm。
Alternatively, the SetmIn the F subcarrier in, RACH take number of subcarriers Num exist Ratio in the F subcarrier is Ratio, wherein, the Ratio is sent to the terminal by the base station by signaling.
Alternatively, the value of the F is { 12,24,36,48 }.
Alternatively, the value of the Ratio is { 1/6,2/6,3/6,4/6,5/6,6/6 } or { 1/12,2/12,3/12,4/ 12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,12/12 } or { 0/12,1/12,2/12,3/12,4/12,5/ 12,6/12,7/12,8/12,9/12,10/12,11/12,12/12 } or { 0/6,1/6,2/6,3/6,4/6,5/6,6/6 }.
Alternatively, the SetmIn the F subcarrier in, the RACH for sending accidental access signal The number of subcarriers of occupancy is Num.
Alternatively, the value of the F is { 12,24,36,48 }.
Alternatively, the Num values be { 4,8,12,16,20,24,28,32,36,40,44,48 } or 3,6,9,12, 15,18,21,24,27,30,33,36,39,42,45,48 } or { 0,4,8,12,16,20,24,28,32,36,40,44,48 } or {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48}。
Alternatively, the terminal sends the RACH of the accidental access signal by described to the base station Base station the terminal is distributed to by signaling.
Alternatively, the signaling includes at least one following information：The hierarchy index of starting；Distribute to institute in the base station State the frequency domain position information where the RACH of terminal；Distribute to the described of the terminal and connect at random in the base station Enter the time-domain position information where channel.
Alternatively, the frequency domain position packet where the RACH of the terminal is distributed in the base station Include：Constitute the unit Unit of accidental access signal Group0Subcarrier or sub-channel index where during transmission.
Alternatively, when upstream bandwidth includes 48 subcarriers or subchannel, base station point is indicated by 6bits configured informations Frequency domain position information where the RACH of terminal described in dispensing.
Alternatively, the 6bits configured informations are additionally operable to indicate the terminal in the SetmIn F subcarrier in Machine selects a subcarrier to be used as the frequency domain position where the RACH.
Alternatively, as the SetmWhen including F subcarrier or subchannel, pass throughBits configured informations refer to Show that the frequency domain position information where the RACH of the terminal is distributed in base station.
Alternatively, it is describedBits configured informations are additionally operable to indicate the terminal in the SetmIn F son carry A subcarrier is randomly choosed in ripple and is used as the frequency domain position where the RACH of the terminal.
Alternatively, as the SetmWhen including F subcarrier or subchannel, pass throughBits is indicated Information indicates that the frequency domain position information where the RACH of the terminal is distributed in base station, wherein, the Num is The number of subcarriers that the RACH takes.
Alternatively, the time-domain position packet where the RACH of the terminal is distributed in the base station Include：2nd SetmConfiguration cycle configured information n；Wherein, the RACH of the terminal is distributed in the base station The Set at placemIt is defined as the 2nd Setm；2nd SetmFor from the first SetmMiddle selection；And the 2nd SetmConfiguration cycle Length is the first SetmN times of configuration cycle, n is positive integer；First SetmInclude for the random access channel resource One or more running time-frequency resource set Setm, n is positive integer.
Alternatively, including at least one of：When n value is described by 3bit, n value for 1,2,3,4,5,6, 7,8 } or { 1,2,4,8,16,32,64,128 } or { 1,2,4,8,10,12,14,16 }；When n value is described by 2bit, n's Value is { 1,2,3,4 } or { 1,2,4,8 } or { Isosorbide-5-Nitrae, 6,8 }.
Alternatively, the time-domain position where the RACH of the terminal is distributed in the base station is：It is described 2nd SetmConfiguration cycle in first the first Setm。
Alternatively, the time-domain position information where the RACH of the terminal is distributed in the base station is also wrapped Include：2nd SetmIn the 2nd SetmConfiguration cycle in positional information Offset；Wherein, the Offset is used for Indicate the 2nd SetmConfiguration cycle in n the first SetmIn, distribute to the RACH institute of the terminal The first SetmIndex information.
Alternatively, the time-domain position packet where the RACH of the terminal is distributed in the base station Include：Continuous two the 2nd SetmTime domain interval information Interval；Distribute to the Stochastic accessing of the terminal in the base station Set where channelmIt is defined as the 2nd Setm；2nd SetmFor from the first SetmMiddle selection, and continuous two second SetmBetween interval Interval the first Setm；Shown first SetmInclude for the random access channel resource one or Multiple running time-frequency resource set Setm。
Alternatively, also include in the signaling：Trigger positioning action configured information.
Alternatively, when the triggering positioning action configured information is triggering positioning action, the terminal is in the signaling point The accidental access signal is sent on the RACH matched somebody with somebody.
Alternatively, the terminal is after the accidental access signal is sent to the base station, and methods described also includes：Institute State terminal to receive after the base station detection accidental access signal, the accidental access response message sent according to testing result； Wherein, the accidental access response message includes at least one of following information：Subcarrier spacing configured information；The son of configuration Number of carrier wave configured information.
Alternatively, the subcarrier spacing configured information and the number of subcarriers configured information of the configuration are compiled by combining Code mode is indicated.
Processing unit is accessed there is provided one kind according to another aspect of the present invention, described device is applied in terminal, bag Include：Selecting module, for selecting sequence corresponding with the terminal in arrangement set；Generation module, for according at least to described Corresponding sequence generates accidental access signal；Sending module, for sending the accidental access signal to base station.
By the present invention, using terminal when generation is used for the accidental access signal of access base station, it can select with terminal certainly The corresponding sequence of body is generated, so that it with the characteristic (e.g., type) of terminal to be accessed is phase that accidental access signal, which is, Match somebody with somebody, it is ensured that different types of terminal can be successfully accessed system, so that solving can not protect present in correlation technique The problem of various types of terminals are all successfully accessed system is demonstrate,proved, and then realizes various types of terminals and can be successfully accessed and be The effect of system.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of access processing method according to embodiments of the present invention；
Fig. 2 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 1 and the two dimension of frequency domain Structure chart；
Fig. 3 is the Set according to the specific embodiment of the invention 1mTime domain and frequency domain two-dimensional structure figure；
Fig. 4 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 2 and the two dimension of frequency domain Structure chart；
Fig. 5 is the Set according to the specific embodiment of the invention 2mTime domain and frequency domain two-dimensional structure figure；
Fig. 6 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 3 and the two dimension of frequency domain Structure chart；
Fig. 7 is the Set according to the specific embodiment of the invention 3mTime domain and frequency domain two-dimensional structure figure；
Fig. 8 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 4 and the two dimension of frequency domain Structure chart；
Fig. 9 is the Set according to the specific embodiment of the invention 4mTime domain and frequency domain two-dimensional structure figure；
Figure 10 is the Set according to the specific embodiment of the invention 4mBitmap indicate schematic diagram；
Figure 11 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 5 and the two dimension of frequency domain Structure chart；
Figure 12 is the Set according to the specific embodiment of the invention 5mTime domain and frequency domain two-dimensional structure figure；
Figure 13 is the adjacent two running time-frequency resource set Set according to the specific embodiment of the invention 5mAnd Setm+1Between between Every schematic diagram；
Figure 14 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 6 and the two dimension of frequency domain Structure chart；
Figure 15 is the Set according to the specific embodiment of the invention 6mTime domain and frequency domain two-dimensional structure figure；
Figure 16 is the running time-frequency resource set Set according to the specific embodiment of the invention 6mConfiguration cycle schematic diagram；
Figure 17 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 7 and the two dimension of frequency domain Structure chart；
Figure 18 is the Set according to the specific embodiment of the invention 7mTime domain and frequency domain two-dimensional structure figure；
Figure 19 is the Set configured in the Vms according to the specific embodiment of the invention 7mSchematic diagram；
Figure 20 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 8 and the two dimension of frequency domain Structure chart；
Figure 21 is the Set according to the specific embodiment of the invention 8mTime domain and frequency domain two-dimensional structure figure；
Figure 22 is the time domain of the elementary cell of the accidental access signal according to the specific embodiment of the invention 9 and the two dimension of frequency domain Structure chart；
Figure 23 is the Set according to the specific embodiment of the invention 9mTime domain and frequency domain two-dimensional structure figure；
Figure 24 is to configure continuous Repetition according to the terminal for being g for hierarchy index of the specific embodiment of the invention 9g Individual subset distribution schematic diagram；
Figure 25 be the elementary cell of the accidental access signal according to the specific embodiment of the invention 10 time domain and frequency domain two Tie up structure chart；
Figure 26 is the Set according to the specific embodiment of the invention 10mTime domain and frequency domain two-dimensional structure figure；
Figure 27 is to configure continuous according to the terminal for being g for hierarchy index of the specific embodiment of the invention 10 RepetitiongIndividual subset distribution schematic diagram；
Figure 28 be the elementary cell of the accidental access signal according to the specific embodiment of the invention 11 time domain and frequency domain two Tie up structure chart；
Figure 29 is the Set according to the specific embodiment of the invention 11mTime domain and frequency domain two-dimensional structure figure；
Figure 30 is the resource for sending accidental access signal for g terminal according to the hierarchy index of the specific embodiment of the invention 11 Distribute schematic diagram；
Figure 31 is the Set according to the specific embodiment of the invention 12mTime domain and frequency domain two-dimensional structure figure；
Figure 32 is the structure chart of the GT2 according to the specific embodiment of the invention 13；
Figure 33 is that 64 repetition transmission structures of the elementary cell of the Preamble according to the specific embodiment of the invention 13 show It is intended to；
Figure 34 is the structure chart of the GT2 according to the specific embodiment of the invention 14；
Figure 35 is that 64 repetition transmission structures of the elementary cell of the Preamble according to the specific embodiment of the invention 14 show It is intended to；
Figure 36 is the structure chart for the Subcarrior that Group transmissions are selected according to the terminal of the specific embodiment of the invention 15；
Figure 37 is the structure chart for the Subcarrior that Group transmissions are selected according to the terminal of the specific embodiment of the invention 16；
Figure 38 is the structured flowchart of access processing unit according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
A kind of access processing method is provided in the present embodiment, and Fig. 1 is access processing side according to embodiments of the present invention The flow chart of method, as shown in figure 1, the flow comprises the following steps：
Sequence corresponding with terminal in step S102, terminal selection arrangement set；
Step S104, above-mentioned terminal generates accidental access signal according at least to corresponding sequence；
Step S106, above-mentioned terminal sends the accidental access signal to base station.
Wherein, above-mentioned sequence corresponding with terminal can be the sequence corresponding with the type of terminal, due to terminal Type has a variety of, and terminal can select to be used to generate accordingly at random when carrying out Stochastic accessing according to the type feature of itself The sequence of signal is accessed, therefore, terminal can be selected before Stochastic accessing is carried out from the arrangement set being made up of multiple sequences Sequence corresponding with itself is selected, and generates corresponding accidental access signal, and access system (that is, above-mentioned base station) accordingly, from And the problem of various types of terminals are all successfully accessed system can not be ensured by solving present in correlation technique, and then realize Various types of terminals can be successfully accessed the effect of system.
In an optional embodiment, above-mentioned arrangement set includes the sequence that J bar sequence lengths are N, wherein, rope The expression-form for being cited as j sequence is0≤j≤J-1,0≤n≤N-1, J is just Integer, N is positive integer.
In an optional embodiment, above-mentioned arrangement set includes R sequence subset conjunction, i.e. wrapped in arrangement set The R sequence subset that the J bar sequences included are divided into is closed, also, R sequence subset conjunction can be configured to different termination sets Close, wherein, R is positive integer.
In above-mentioned steps S102, terminal can be used as follows in sequence corresponding with terminal in selecting arrangement set Selection mode：Terminal determines that sequence subset corresponding with the terminal set belonging to itself is closed from the conjunction of above-mentioned R sequence subset；Eventually Holding in being closed from the sequence subset of determination selects a sequence to be used as corresponding sequence.Alternatively, when the sequence subset that terminal is determined When there was only 1 sequence in conjunction, the terminal selects this 1 sequence in sequence subset conjunction as corresponding sequence；When terminal is true When fixed sequence subset has a plurality of sequence in closing, terminal one sequence of selection random from the sequence subset conjunction of determination is as right The sequence answered；Wherein, R is positive integer.In the present embodiment, above-mentioned arrangement set is divided into R sequence subset conjunction, because This, in selection sequence corresponding with terminal, terminal can sequence of the option and installment to the terminal set belonging to itself first Set, and then select corresponding sequence from the sequence subset conjunction of the selection again.
In an optional embodiment, above-mentioned terminal is determined and the termination set belonging to itself in being closed from R sequence subset Closing corresponding sequence subset and closing includes：Above-mentioned terminal from R sequence subset close in selection (Y+1) individual sequence subset cooperation be with The corresponding sequence subset of terminal set belonging to itself is closed, wherein, Y=Mod (Cell ID, R), Cell ID are what terminal was accessed Cell ID is indexed.In the present embodiment, can be that terminal set of the base station belonging to terminal configures subsequence with reference to above-mentioned Mod (Cell ID, R) is remainder algorithm, i.e. Y is obtained remainder after Cell ID divided by R.
In an optional embodiment, above-mentioned R sequence subset, which is closed, can be configured to R different termination sets respectively Close, i.e. sequence subset is closed and terminal set is one-to-one.Certainly, in the application, sequence subset is closed between terminal set It can also be many-one or one-to-many relation.
In an optional embodiment, the dividing mode of terminal set can be a variety of, below to different termination sets Dividing mode is closed to illustrate：
When the quantity of terminal set is 2,2 different termination sets are combined into first terminal set and second terminal set, The first terminal set and second terminal set meet at least one following condition：The terminal that first terminal set includes is support The terminal of multiple subcarrier simultaneous transmissions, and the terminal that second terminal set includes is only to support the end of single sub-carrier transmission End；The terminal that first terminal set includes transmits the terminal of upstream data, and second terminal set bag for the multiple subcarriers of use The terminal included is the terminal that upstream data is transmitted using single sub-carrier；The terminal that first terminal set includes is to use many height The terminal of carrier wave simultaneous transmission Msg3 message, and the terminal that second terminal set includes is to be disappeared using single sub-carrier transmission Msg3 The terminal of breath；The terminal that the terminal that first terminal set includes is transmitted over the plurality of subcarriers for Msg3 message bearings, and second The terminal that terminal set includes is the terminal that Msg3 message is only carried on single sub-carrier transmission；The end that first terminal set includes End is to support that single sub-carrier is transmitted and subcarrier spacing is fsc1Terminal, the terminal that second terminal set includes is single to support Individual sub- carrier-wave transmission and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes is to be passed using single sub-carrier Defeated upstream data and subcarrier spacing are fsc1Terminal；The terminal that second terminal set includes is using single sub-carrier transmission Upstream data and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes is using single sub-carrier transmission Msg3 message and subcarrier spacing are fsc1Terminal, the terminal that second terminal set includes be using single sub-carrier transmission Msg3 message and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes only is carried on single for Msg3 message Subcarrier is transmitted and subcarrier spacing is fsc1Terminal, the terminal that second terminal set includes be Msg3 message be only carried on list Individual sub- carrier-wave transmission and subcarrier spacing are fsc2Terminal；The terminal that above-mentioned first terminal set includes be Msg3 message in hold The information content of load is Size1 terminal, and the terminal that second terminal set includes is that the information content carried in Msg3 message is Size2 Terminal, wherein, Size1 is not equal to Size2；
When terminal set quantity be 3 when, 3 different termination sets be combined into first terminal set, second terminal set and Third terminal set, first terminal set, second terminal set and third terminal set meet at least one following condition：First The terminal that terminal set includes is supports the terminal of multiple subcarrier simultaneous transmissions, and the terminal that second terminal set includes is only to prop up Hold single sub-carrier transmission and subcarrier spacing is fsc1Terminal, the terminal that third terminal set includes is only supports single son Carrier-wave transmission and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes is using in the transmission of multiple subcarriers The terminal of row data, the terminal that second terminal set includes be use single sub-carrier transmit upstream data and subcarrier spacing for fsc1Terminal；The terminal that third terminal set includes is to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc2 Terminal；The terminal that first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, second terminal set Including terminal be to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc1Terminal, third terminal set bag The terminal included is to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc2Terminal；First terminal set includes Terminal be the terminal transmitted over the plurality of subcarriers of Msg3 message bearings, the terminal that second terminal set includes is Msg3 message Only it is carried on single sub-carrier transmission and subcarrier spacing is fsc1Terminal, the terminal that third terminal set includes disappears for Msg3 Breath is only carried on single sub-carrier transmission and subcarrier spacing is fsc2Terminal；The terminal that above-mentioned first terminal set includes is The information content carried in Msg3 message is Size1 terminal, and the terminal that second terminal set includes is to carry in Msg3 message Information content is Size2 terminal, and the terminal that third terminal set includes is the end that the information content carried in Msg3 message is Size3 End, wherein, Size1, Size2, Size3 are not mutually equal；
When the quantity of terminal set is 4,4 different termination sets are combined into first terminal set, second terminal set, the Three terminal set and the 4th terminal set, first terminal set, second terminal set, third terminal set and the 4th terminal set Meet at least one following condition：The terminal that first terminal set includes is between the multiple subcarrier simultaneous transmissions of support and subcarrier It is divided into fsc1Terminal, the terminal that second terminal set includes is to support multiple subcarrier simultaneous transmissions and subcarrier spacing is fsc2 Terminal, the terminal that third terminal set includes for only support single sub-carrier transmission and subcarrier spacing is fsc3Terminal, The terminal that four terminal set include is only support single sub-carrier transmission and subcarrier spacing is fsc4Terminal；First terminal collection It is to use multiple subcarriers transmission upstream datas and subcarrier spacing is f to close the terminal that includessc1Terminal, second terminal set Including terminal be to use multiple subcarriers transmission upstream datas and subcarrier spacing is fsc2Terminal, third terminal set bag The terminal included is to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc3Terminal；4th terminal set includes Terminal be to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc4Terminal；First terminal set includes Terminal is to use multiple subcarriers transmission Msg3 message and subcarrier spacing is fsc1Terminal, the end that second terminal set includes End is to use multiple subcarriers transmission Msg3 message and subcarrier spacing is fsc2Terminal, the terminal that third terminal set includes To use, single sub-carrier transmits Msg3 message and subcarrier spacing is fsc3Terminal, the terminal that the 4th terminal set includes is Use single sub-carrier transmission Msg3 message and subcarrier spacing is fsc4Terminal；The terminal that first terminal set includes is Msg3 message bearings are transmitted over the plurality of subcarriers and subcarrier spacing is fsc1Terminal, the terminal that second terminal set includes Transmitted over the plurality of subcarriers for Msg3 message bearings and subcarrier spacing is fsc2Terminal, the end that third terminal set includes End is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc3Terminal, what the 4th terminal set included Terminal is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc4Terminal；Above-mentioned first terminal set Including terminal be terminal that the information content that carries in Msg3 message is Size1, the terminal that second terminal set includes is Msg3 The information content carried in message is Size2 terminal, and the terminal that third terminal set includes is the information that carries in Msg3 message Measure the terminal for Size3, the terminal that the 4th terminal set includes is the terminal that the information content carried in Msg3 message is Size4, Wherein, Size1, Size2, Size3, Size4 are not mutually equal.It should be noted that above-mentioned several terminal set dividing modes Only it is several examples, it would however also be possible to employ other classifying rationally modes are divided to terminal set.In the above-described embodiments, fsc1And fsc2Value is different, for example, fsc1Can be using value as 15kHz, fsc2Can be using value as 3.75kHz；Above-mentioned fsc3And fsc4 Value is different, for example, fsc3Can be using value as 15kHz, fsc4Can be using value as 3.75kHz.
In an optional embodiment, the types of the J bar sequences in above-mentioned arrangement set can be it is a variety of, below it is right The type of sequence in arrangement set is illustrated：Above-mentioned J bars sequence length is that N sequence meets at least one of：J bars The sequence that sequence length is N is orthogonal code sequence；J bar sequence lengths are that N sequence is defined orthogonal code sequence；J bars The sequence that sequence length is N is predefined sequence.In the present embodiment, predefined sequence includes complete 1 sequence that length is N Row, or length are N full A sequence, and the A can be positive integer.
It is above-mentioned in an optional embodimentMeet at least one of： The corresponding Code of j of different valuesjInOrthogonal code, or quasiorthogonal code word each other each other；Different values The corresponding Code of jjInOrthogonal code, or quasiorthogonal code word each other each other；J pairs of different values The Code answeredjInOrthogonal code, or quasiorthogonal code word each other each other, wherein, 0≤i≤N/2-1.
In an optional embodiment, above-mentioned N value can be one below：2,4,6,8.
Each sequence in arrangement set is illustrated below：
Alternatively, J=1 is worked as, and during N=4, J bars sequence length includes at least one of for N sequence：
When working as R=2, J=2, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, Code0 And Code1In the terminal that is configured in first terminal set, another is configured to the end in second terminal set End；When working as R=2, J=2, and N=8, J bars sequence length includes at least one of for N sequence： Wherein, Code0And Code1In the terminal that is configured in first terminal set, it is another The individual terminal being configured in second terminal set；
When working as R=3, J=3, and N=4, J bars sequence length includes at least one of for N sequence： In any 3； In any 3； Wherein, 3 sequence lengths are individually configured to the terminal in 3 terminal set for N sequence, i.e. 3 sequence lengths are N's Sequence and 3 terminal set can carry out any pair one combination configurations；
When working as R=4, J=4, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, 4 sequences Row length is individually configured to the terminal in 4 terminal set for N sequence, i.e. sequence and 4 ends of 4 sequence lengths for N End set can carry out any pair one combination configurations；Wherein, A isC is constant,
In an optional embodiment, when sequence corresponding with terminal isWhen, Above-mentioned terminal includes according at least to corresponding sequence generation accidental access signal：Terminal determines that index is f on frequency domainnSubcarrier and when Continuous K symbol is taken on domain to sendK-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is Above-mentioned K symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isIts In, 0≤k≤K-1；Above-mentioned terminal according at least toDetermine accidental access signal.
In an optional embodiment, above-mentioned terminal according at least to Determine that the accidental access signal includes：The expression formula of corresponding time domain is Wherein 0≤t≤Tk, TkFor the length of k-th of time-domain symbol,It is f for indexnSubcarrier take frequency domain resource, FOffset For frequency offset amount；And/or, it is T when the time domain sampling intervalsWhen,Corresponding time domainExpression formula beWherein, 0≤t≤Tk, TkFor The length of k-th of time-domain symbol, 0≤k≤K-1,0≤q≤Q-1,For time domain sampling point quantity；The terminal is continuous K symbol on sendTime-domain expression beTerminal is according at least to above-mentionedDetermine accidental access signal.
In an optional embodiment, above-mentioned terminal according at least toIt is determined that random Access signal includes：Above-mentioned terminal generates cyclic prefix CP according to the following formulan, CPn={ Sn[QK-L+1],…,Sn[QK] }, L is represented CPnThe time-domain sampling interval T includedsQuantity；Then terminal is in subcarrier fnThe expression formula of the accidental access signal of upper transmission is Groupn={ CPn,Sn, terminal is in subcarrier f0,f1,…,fN-1The expression formula of the accidental access signal of upper transmission is { Group0, Group1,…GroupN-1}；Wherein, the different Group of n valuesnDifferent symbols are taken in time domain.
In an optional embodiment, Group0~GroupN-1To constitute the unit Unit of above-mentioned accidental access signal, Above-mentioned terminal sends accidental access signal to be included to base station：Above-mentioned terminal determines that a Unit is accidental access signal, and will be with Machine access signal repeats to be transmitted for H times；And/or, Unit is repeated H times in time domain and forms Stochastic accessing letter by above-mentioned terminal Number, concurrently serve and state accidental access signal.
In an optional embodiment, above-mentioned terminal is in subcarrier fnOn be sent completely accidental access signal GroupnIt Afterwards, it is necessary to introduce the interval that time span is Gap, wherein, do not retransmited for terminal in Gap interval in the time span GroupnAccidental access signal afterwards, above-mentioned terminal continues to send Group after time span is Gap intervalnAfterwards Accidental access signal.
In an optional embodiment, work as N=4, K=5, CPnTime domain length be 266.7us, send Stochastic accessing During a width of 3.75kHz of the subcarrier spacing or sub-carrier bin of signal, above-mentioned Gap time domain length is 0.4ms；And/or, work as N= 4, K=5, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or sub-carrier bin it is a width of During 3.75kHz, above-mentioned Gap time domain length is 0.6ms；And/or, work as N=4, K=5, CPnTime domain length be 8192*Ts, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 12288*Ts, Wherein, Ts=32.55ns；And/or, work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns.
In an optional embodiment, repeat to include Y Group that (Y Group is Group H time of above-mentioned Unit0 ~GroupN-1、Group0~GroupN-1、Group0~GroupN-1..., it is repeated H times altogether), Y Group can be defined Index be Group0~GroupY-1, wherein, Y=H*N；When terminal completes GroupstartTo GroupendY Group (y altogether Individual Group call number can be continuous) accidental access signal transmission after, it is necessary to introduce time span for Gap Interval, wherein, accidental access signal is not retransmited for terminal in Gap interval in time span, the terminal is in the time Length sends Group for continuation after Gap intervalendAccidental access signal afterwards；Wherein, 0≤start≤end≤Y-1, y≤Y。
In an optional embodiment, start=offset+y × Ngap, wherein, NgapIt is Gap to introduce time span Interval quantity；Offset is first GroupstartIndex amount of bias；Or, start=y × Ngap, wherein, Ngap To introduce the quantity at the interval that time span is Gap.
In an optional embodiment,OrOr Ngap=Y/y.
In an optional embodiment, end=start+y-1.
In an optional embodiment, above-mentioned Gap meets at least one following condition：Y × L_G+Gap=T × TimeUnit, wherein, L_G is Group time span, and Gap >=0, T is positive integer, and TimeUnit is a kind of time span Linear module；Y × L_G+Gap=T × TimeUnit, wherein L_G are Group time span, and Gap >=0, T is positive integer and T To meet T × TimeUnit>Y × L_G minimum value, TimeUnit is a kind of linear module of time span.In the present embodiment In, TimeUnit can be second, millisecond, microsecond, nanosecond, frame (frame), subframe (Subframe), time slot (slot).
In an optional embodiment, above-mentioned terminal is needed after Unit accidental access signal is sent completely The interval that time span is Gap is introduced, wherein, after the time span does not retransmit Unit for terminal in Gap interval Accidental access signal, terminal above-mentioned time span for Gap interval after continue send Unit after Stochastic accessing letter Number.
In an optional embodiment, work as N=4, K=5, CPnTime domain length be 266.7us, send Stochastic accessing During a width of 3.75kHz of the subcarrier spacing or sub-carrier bin of signal, Gap time domain length is 0.6ms；And/or, work as N=4, K= 5, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.4ms；And/or, work as N=4, K=5, CPnTime domain length be 8192*Ts, send Stochastic accessing letter Number subcarrier spacing or sub-carrier bin a width of 3.75kHz when, Gap time domain length is 18432*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing Or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns.
In an optional embodiment, the index for defining above-mentioned Unit H repetition is Unit0~UnitH-1, work as end End completes UnitstartTo UnitendThe accidental access signal of y Unit (y Unit call number can be continuous) is sent out altogether , it is necessary to introduce the interval that time span is Gap after sending, wherein, do not retransmited for terminal in Gap interval in the time span Accidental access signal, terminal continues to send Unit after above-mentioned time span is Gap intervalendStochastic accessing letter afterwards Number；Wherein, 0≤start≤end≤Y-1, y≤Y.
In an optional embodiment, start=offset+y × Ngap, wherein, NgapIt is Gap to introduce time span Interval quantity；Offset is first UnitstartIndex amount of bias；Or, start=y × Ngap, wherein, Ngap To introduce the quantity at the interval that time span is Gap.
In an optional embodiment,OrOr Ngap=Y/y.
In an optional embodiment, end=start+y-1.
In an optional embodiment, above-mentioned Gap meets at least one following condition：Y × L_U+Gap=T × TimeUnit, wherein, L_G is Unit time span, and gap >=0, T is positive integer, and TimeUnit is a kind of degree of time span Measure unit；Y × L_U+Gap=T × TimeUnit, wherein, L_G is Unit time span, and Gap >=0, T is positive integer and T is Meet T × TimeUnit>Y × L_U minimum value, TimeUnit is a kind of linear module of time span.In the present embodiment, TimeUnit can be second, millisecond, microsecond, nanosecond, frame (frame), subframe (Subframe), time slot (slot).
In an optional embodiment, work as N=4, K=5, H=1, CPnTime domain length be 8192*Ts, send random When accessing the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of signal, Gap time domain length is 18432*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=2, CPnTime domain length be 8192*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=4, CPnTime domain length be 8192*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；And/or, Work as N=4, K=5, H=8, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or subcarrier During with a width of 3.75kHz, Gap time domain length is 24576*Ts, wherein, Ts=32.55ns；And/or, work as N=4, K=5, H =16, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or a width of 3.75kHz of sub-carrier bin When, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；And/or, work as N=4, K=5, H=1, CPnTime domain Length is 2048*Ts, and when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain is long Spend for 12288*Ts, wherein, Ts=32.55ns；And/or, work as N=4, K=5, H=2, CPnTime domain length be 2048*Ts, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 24576*Ts, Wherein, Ts=32.55ns；And/or, work as N=4, K=5, H=4, CPnTime domain length be 2048*Ts, send Stochastic accessing letter Number subcarrier spacing or sub-carrier bin a width of 3.75kHz when, Gap time domain length is 18432*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=8, CPnTime domain length be 2048*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=16, CPnTime domain length be 2048*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；And/or, Work as N=4, K=5, H=1, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or subcarrier During with a width of 3.75kHz, Gap time domain length is 0.6ms；And/or, work as N=4, K=5, H=2, CPnTime domain length be 266.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.2ms or 1.2ms；And/or, work as N=4, K=5, H=4, CPnTime domain length be 266.7us, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.4ms；And/or, work as N=4, K=5, H= 8, CPnTime domain length be 266.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.8ms；And/or, work as N=4, K=5, H=16, CPnTime domain length be 266.7us, send random When accessing the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of signal, Gap time domain length is 0.6ms；And/or, work as N= 4, K=5, H=1, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or sub-carrier bin it is a width of During 3.75kHz, Gap time domain length is 0.4ms；And/or, work as N=4, K=5, H=2, CPnTime domain length be 66.7us, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.8ms；With/ Or, work as N=4, K=5, H=4, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.6ms；And/or, work as N=4, K=5, H=8, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.2ms or 1.2ms；And/or, work as N=4, K=5, H=16, CPnTime domain length be 66.7us, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.4ms.
In an optional embodiment, above-mentioned H value is determined according at least to the grade of terminal, i.e. different grades of The corresponding H of terminal can be different.
In an optional embodiment, the grade of above-mentioned terminal can include at least one of：Coverage enhancement grade； Physical channel repeats to send grade；The repetition of the message or signaling that are carried on physical channel sends grade.
In an optional embodiment, above-mentioned terminal sends accidental access signal to be included to base station：Terminal determines to be used for Send the RACH of above-mentioned accidental access signal；Terminal sends Stochastic accessing to base station by RACH and believed Number.In the present embodiment, the RACH that terminal is used to carry out accidental access signal transmission can be RACH A part in resource, the random access channel resource can include multiple for different terminal progress accidental access signal hairs The RACH sent.
In an optional embodiment, above-mentioned random access channel resource includes one or more running time-frequency resource set Setm, wherein, the SetmInclude F subcarrier or subchannel on frequency domain, length is at least P Unit length in time domain, M is SetmIn the index of time domain, F is positive integer, and P is positive integer.In the present embodiment, above-mentioned random access channel resource can To send the RACH of accidental access signal, also, an above-mentioned Set including multiple terminalsmCan be by an end End is used, and can also be used by multiple terminals, or multiple SetmUsed by a terminal.
In an optional embodiment, above-mentioned SetmIncluding P subset subset, wherein, the subset is on frequency domain With SetmConfigure identical subcarrier, the length that subset length in time domain is 1 Unit.
In an optional embodiment, in above-mentioned SetmThe front and rear of the frequency resource of occupancy is respectively configured with protection bandwidth, And/or, in SetmThe frequency resource of occupancy is respectively configured with protection bandwidth up and down.Below to SetmThe frequency resource configuration of occupancy Protection bandwidth illustrate：
Group carrier wave is at intervals of 3.75kHz, during F=12, in SetmIt is each in the front and rear frequency resource of the frequency resource of occupancy It is configured with 7.5kHz protection bandwidth；And/or, group carrier wave is at intervals of 3.75kHz, during F=16, in SetmThe frequency resource of occupancy Middle lower sideband is respectively reserved with 7.5kHz protection bandwidth.
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, and during F=12, upstream bandwidth is most Configure 4 Setm, and each SetmInclude F=12 subcarrier or subchannel, different Set on frequency domainmInclude on frequency domain Subcarrier or subchannel be not overlapping.
It is alternatively possible to the Set that the terminal or terminal group that are designated as same grade by U bit information are matched somebody with somebodym's Frequency domain position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U=2 or 4.
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, and during F=16, upstream bandwidth is most Configure 3 Setm, and each SetmInclude F=16 subcarrier or subchannel, different Set on frequency domainmInclude on frequency domain Subcarrier or subchannel be not overlapping.
It is alternatively possible to the Set that the terminal or terminal group that are designated as same grade by U bit information are matched somebody with somebodym's Frequency domain position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U=2 or 3.
In an optional embodiment, the above method can include at least one following：Work as N=4, it is described during K=5 SetmLength is 7ms, the CP in time domainnTime domain length be 266.7us, P=1；Work as N=4, during K=5, the Setm Length is 13ms, the CP in time domainnTime domain length be 266.7us, P=2；Work as N=8, during K=5, the SetmIn time domain Upper length is 13ms, the CPnTime domain length be 266.7us, P=1；Work as N=4, during K=5, the SetmIt is long in time domain Spend for 26ms, the CPnTime domain length be 266.7us, P=4；Work as N=8, during K=5, the SetmLength is in time domain 26ms, the CPnTime domain length be 266.7us, P=2；Work as N=4, during K=5, the SetmLength is 32ms in time domain, The CPnTime domain length be 266.7us, P=5；Work as N=4, during K=5, the SetmLength is 64ms in time domain, described CPnTime domain length be 266.7us, P=10；Work as N=8, during K=5, the SetmLength is 64ms, the CP in time domainn Time domain length be 266.7us, P=5；Work as N=4, during K=5, the SetmLength is 6ms, the CP in time domainnTime domain Length is 66.7us, P=1；Work as N=4, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=2；Work as N=8, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=1；Work as N=4, during K=5, the SetmLength is 17ms, the CP in time domainnTime domain length be 66.7us, P=3；Work as N=4, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=4；Work as N=8, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=2；Work as N=4, during K=5, the SetmLength is 28ms, the CP in time domainnTime domain length be 66.7us, P=5；Work as N=4, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=6；Work as N=8, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=3.
Wherein, in the above-described embodiments, N=4 is worked as, during K=5, SetmIt is above-mentioned to connect at random when length is 7ms in time domain Entering channel resource includes 0.6ms guard time；Work as N=4, during K=5, SetmIt is above-mentioned random when length is 26ms in time domain Access channel resource includes 0.4ms guard time；Work as N=8, during K=5, SetmIn time domain length be 26ms when, it is above-mentioned with Machine access channel resource includes 0.4ms guard time；Work as N=4, during K=5, SetmIt is above-mentioned when length is 6ms in time domain Random access channel resource includes 0.4ms guard time；Work as N=4, during K=5, SetmWhen length is 12ms in time domain, on Stating random access channel resource includes 0.8ms guard time；Work as N=8, during K=5, SetmWhen length is 12ms in time domain, Above-mentioned random access channel resource includes 0.8ms guard time；Work as N=4, during K=5, SetmLength is 17ms in time domain When, above-mentioned random access channel resource includes 0.2ms guard time；Work as N=4, during K=5, SetmLength is in time domain During 23ms, above-mentioned random access channel resource includes 0.6ms guard time；Work as N=8, during K=5, SetmThe length in time domain During for 23ms, above-mentioned random access channel resource includes 0.6ms guard time；Work as N=4, during K=5, SetmIt is long in time domain When spending for 34ms, above-mentioned random access channel resource includes 0.4ms guard time；Work as N=8, during K=5, SetmIn time domain When length is 34ms, above-mentioned random access channel resource includes 0.4ms guard time.
In an optional embodiment, two adjacent Set of time domainmBetween be spaced V very first time unit, wherein, V For integer, the very first time unit includes at least one of：The time domain length of one or more frames, one or more subframes Time domain length, Z1Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit time domain length, Z5Individual subset time domain is long Degree, wherein, Z1、Z2、Z3、Z4、Z5It is positive integer.
In the above-described embodiments, it can include at least one following：V value includes at least one of：V=0；V= 2y, wherein, y is the integer more than or equal to 0；V very first time unit be continuously distributed in time domain or discrete distribution；Time domain phase Two adjacent SetmF subcarrier or subchannel described in identical are taken on frequency domain.
In an optional embodiment, SetmConfiguration cycle be L very first time unit, wherein, L is positive integer, The very first time unit includes at least one of：The time domain of the time domain length of one or more frames, one or more subframes Length, Z1Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit time domain length, Z5Individual subset time domain length, its In, Z1、Z2、Z3、Z4、Z5It is positive integer.
In an optional embodiment, L=2z, wherein, z is the integer more than or equal to 0.
In the above-described embodiments, 2zIndividual very first time unit is continuously distributed in time domain or discrete distribution；Z values for 0, 1,2,3,4,5,6,7 }；Two adjacent Set of time domainmF subcarrier or subchannel described in identical are taken on frequency domain.
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration L1Individual subset, the subset Index be subset 0 to subset (L1-1), wherein, hierarchy index includes for the g corresponding subset allocation plans of terminal： Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, in a SetmConfiguration cycle in, be Hierarchy index configures continuous Repetition for g terminalgIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：Its In, 0≤g≤G-1, G is the quantity of the grade of the terminal divided.Alternatively, in the present embodiment, G can also exist for needs SetmThe quantity of the grade of the terminal of middle configuration resource.Above-mentioned G can be 1.
In an optional embodiment, different SetmConfiguration cycle between, hierarchy index for g terminal it is corresponding Subset allocation plans are identicals.
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration L1Individual subset, subset's Index as subset 0 to subset (L1- 1), wherein, hierarchy index includes for g corresponding subset allocation plans of terminal： Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, and be that the terminal that hierarchy index is g is matched somebody with somebody Put continuous ChanceNumg×RepetitiongIndividual subset, wherein ChanceNumg≥1。
In an optional embodiment, in a SetmConfiguration cycle in, ChanceNumg×RepetitiongIt is individual Subset indexes StartingSubsetIndex is originated in subsetgIt can be calculated according to formula below：Wherein, 0≤g≤G-1, G are the terminal divided Grade quantity.Alternatively, above-mentioned G can be base station configuration terminal grade quantity or in SetmResource The quantity of the grade of the upper terminal for sending accidental access signal.Alternatively, in the present embodiment, G can also be needs in Setm The quantity of the grade of the terminal of middle configuration resource.Above-mentioned G can be 1.
In an optional embodiment, starting subset indexes are StartingSubsetIndexgChanceNumg ×RepetitiongIn individual subset, ChanceNum is configured withgIndividual first sends resource, wherein, the first transmission resource is used for Unit repeats Repetition in time domaingIt is secondary to send, i.e. Unit repeats Repetition in time domaingSecondary transmission can be Performed in one resource.
In an optional embodiment, above-mentioned ChanceNumgIndividual first c-th first sent in resource send money The starting subset indexes in sourceIt can be calculated according to formula below：
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration L1Individual subset, the subset Index be subset 0 to subset (L1-1), wherein, hierarchy index includes for the g corresponding subset allocation plans of terminal： Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, and hierarchy index is g terminal configuration There is ChanceNumg×RepetitiongIndividual subset, ChanceNumg≥1。
In an optional embodiment, in a SetmConfiguration cycle in, ChanceNumg×RepetitiongIt is individual Subset index is subset 0 to subset (ChanceNumg×Repetitiong-1), and since subset 0, rope Draw continuous RepetitiongIndividual subset be one first transmission resource, wherein, this first send resource be used for Unit when Repetition is repeated on domaingIt is secondary to send, the Repetition in one first transmission resourcegIndividual subset is continuous in time domain Distribution, the different corresponding subset discrete distributions in time domain of the first transmission resource.
In an optional embodiment, in above-mentioned SetmConfiguration cycle in the terminal corresponding the including G grade One sends resource, wherein, hierarchy index sends resource for g terminal corresponding first and repeated for Unit in time domain RepetitiongSecondary to send, it is N that the terminal corresponding described first that hierarchy index is g, which sends resource size,gIt is individual For The corresponding Set of terminal that level index is gm, 0≤g≤G-1.
In an optional embodiment, in above-mentioned SetmConfiguration cycle in, terminal is ascending according to hierarchy index g Order be sequentially allocated NgIt is individualResource.
In an optional embodiment, Ng>=1 or Ng>=0, and work as NgWhen=0, represent in SetmConfiguration cycle in do not have There is configuration level index to send resource for g terminal corresponding first.
In an optional embodiment, in SetmConfiguration cycle in, be hierarchy index be g terminal configuration NgIt is individualAdjacent two in resourceBetween time domain interval be LgIndividual second chronomere, wherein, Lg≥0。
In an optional embodiment, the corresponding L of terminal of different brackets indexgIt is identical.
In an optional embodiment, in above-mentioned SetmConfiguration cycle in, different brackets index the corresponding N of terminalg It is individualBetween resource, L is spacedβIndividual second chronomere, wherein, Lβ≥0.Wherein, the corresponding N of terminal of different brackets indexg It is individualL is spaced between resourceβIndividual second chronomere refers to that the terminal of a grade is correspondingResource and another grade Terminal it is correspondingL is spaced between resourceβIndividual second chronomere.
In an optional embodiment, in SetmConfiguration cycle in, different brackets index the corresponding N of terminalgIt is individualBetween resource, L is spacedgIndividual second chronomere.
In an optional embodiment, above-mentioned very first time unit and the second chronomere can with it is identical can not also Together.
In an optional embodiment, hierarchy index is the g corresponding N of terminalgIt is individualFirst in resource's Time domain starting resource position with it is describedConfiguration cycle in time domain starting resource position it is identical；Or, hierarchy index is g's The corresponding N of terminalgIt is individualFirst in resourceTime domain starting resource position with it is describedConfiguration cycle in time domain There is offset in starting resource position, wherein, the offset is predetermined or is what base station was configured.
In an optional embodiment, the terminal of different brackets index is correspondingIt is identical.
In an optional embodiment, above-mentioned SetmConfiguration cycle length be D SetmTime domain length, wherein, D For positive integer.
In an optional embodiment, D=2x, x is the integer more than or equal to 0.
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration D*P subset, subset Index be subset 0 to subset (D*P-1), wherein, hierarchy index be g the corresponding subset allocation plans bag of terminal Include：Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, in a SetmConfiguration cycle It is interior, it is that the terminal that hierarchy index is g configures continuous RepetitiongIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：
Wherein, 0≤g≤G-1, G are the quantity of the grade of the terminal divided.
In an optional embodiment, different SetmConfiguration cycle between, hierarchy index for g terminal it is corresponding Subset allocation plans are identicals.
In an optional embodiment, when upstream bandwidth include 48 sub- carrier waves at intervals of 3.75kHz subcarrier when, The sub-carrier indices are 0~47, wherein, index as 0,1,14,15,16,17,30,31,32,33,46,47 subcarrier is unworthy of Put to Setm。
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F= 24, and the SetmStarting sub-carrier indices be 2 when, index for 2~25 sub-carrier configuration give the Setm.Wherein, "~" The meaning of " extremely " is meant, for example, the subcarrier that index is 2~25 is to index 24 subcarriers from 2 to 25, following realities It is similar to apply in example, is repeated no more.
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F= 36, and the SetmStarting sub-carrier indices be 2 when, index for 2~37 sub-carrier configuration give the Setm。
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F= 24, and SetmStarting sub-carrier indices be 18 when, index for 18~41 sub-carrier configuration give the Setm。
In an optional embodiment, above-mentioned SetmIn F subcarrier in, RACH take subcarrier Ratios of the quantity Num in F subcarrier is Ratio, wherein, the Ratio is sent to the terminal by base station by signaling.
In an optional embodiment, above-mentioned F value is { 12,24,36,48 }.
In an optional embodiment, above-mentioned Ratio value is { 1/6,2/6,3/6,4/6,5/6,6/6 } or { 1/ 12,2/12,3/12,4/12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,1 2/12 } or { 0/12,1/12,2/ 12,3/12,4/12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,12/12 } or { 0/6,1/6,2/6,3/6,4/ 6,5/6,6/6}。
In an optional embodiment, above-mentioned SetmIn F subcarrier in, for send accidental access signal with The number of subcarriers of machine access channel occupancy is Num.
In an optional embodiment, above-mentioned F value is { 12,24,36,48 }.
In an optional embodiment, above-mentioned Num values are { 4,8,12,16,20,24,28,32,36,40,44,48 } { 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48 } or 0,4,8,12,16,20,24,28,32, 36,40,44,48 } or { 0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48 }.
In an optional embodiment, above-mentioned terminal sends the RACH of accidental access signal to base station The terminal is distributed to by signaling by the base station.In the present embodiment, signaling can include at least one of：For list The signaling that the signaling of individual terminal, the signaling for the single terminal in connection status, carrying are sent on a control channel.
In an optional embodiment, above-mentioned signaling includes at least one following information：The hierarchy index of starting；Base Distribute to the frequency domain position information where the above-mentioned RACH of terminal in station；Distribute to the above-mentioned Stochastic accessing of terminal in base station Time-domain position information where channel.
In an optional embodiment, the frequency domain position letter where the RACH of terminal is distributed in above-mentioned base station Breath includes：Constitute the unit Unit of accidental access signal Group0Subcarrier or sub-channel index where during transmission. Alternatively, Group is removed in Unit0Outside other several Group where frequency domain resource by Group0Frequency domain position indicate (for example, can be according to predefined rule, according to Group0Frequency domain determine).
In an optional embodiment, when upstream bandwidth includes 48 subcarriers or subchannel, indicated by 6bits Information indicates that the frequency domain position information where the RACH of the terminal is distributed in base station.In the present embodiment, It is 0 Subcarrior that such as " 000000 ", which represents index, and it is 47 Subcarrior that index " 101111 ", which represents index,.
In an optional embodiment, above-mentioned 6bits configured informations are additionally operable to instruction terminal in SetmIn F son carry A subcarrier is randomly choosed in ripple and is used as the frequency domain position where RACH.For example, " 110000 " can indicate institute Terminal is stated in SetmIn F subcarrier in random selection one subcarrier be used as the frequency domain position where RACH.
In an optional embodiment, work as SetmWhen including F subcarrier or subchannel, pass throughbits Configured information indicates that the frequency domain position information where the RACH of terminal is distributed in base station.In the present embodiment,It is The operation that rounds up is accorded with.
In an optional embodiment,Bits configured informations are additionally operable to instruction terminal in SetmIn F son A subcarrier is randomly choosed in carrier wave and is used as the frequency domain position where the RACH of terminal.In the present embodiment, It is the operation symbol that rounds up.
In an optional embodiment, as above-mentioned SetmWhen including F subcarrier or subchannel, pass throughBits configured informations indicate that the frequency domain where the RACH of the terminal is distributed in base station Positional information, wherein, Num is the number of subcarriers that RACH takes.
In an optional embodiment, the time domain position where the RACH of terminal is distributed in above-mentioned base station Confidence breath includes：2nd SetmConfiguration cycle configured information n；Wherein, the described random of the terminal is distributed in the base station The Set accessed where channelmIt is defined as the 2nd Setm；2nd SetmFor from the first SetmMiddle selection；And the 2nd Setm's Configuration cycle length is the first SetmN times of configuration cycle, n is positive integer；First SetmFor the RACH One or more running time-frequency resource set Set that resource includesm, n is positive integer.As n=1, illustrate the first SetmWith the 2nd Setm It is equal.
In an optional embodiment, including at least one of：When n value is described by 3bit, n value is { 1,2,3,4,5,6,7,8 } or { 1,2,4,8,16,32,64,128 } or { 1,2,4,8,10,12,14,16 }；When n value by When 2bit is described, n value is { 1,2,3,4 } or { 1,2,4,8 } or { Isosorbide-5-Nitrae, 6,8 }.
In an optional embodiment, the time-domain position where the RACH of terminal is distributed in above-mentioned base station For：2nd SetmConfiguration cycle in first the first Setm。
In an optional embodiment, the time-domain position letter where the RACH of terminal is distributed in above-mentioned base station Breath also includes：2nd SetmIn the 2nd SetmConfiguration cycle in positional information Offset；Wherein, the Offset is used to indicate 2nd SetmConfiguration cycle in n the first SetmIn, distribute to first where the RACH of the terminal SetmIndex information.
In an optional embodiment, the time domain position where the RACH of terminal is distributed in above-mentioned base station Confidence breath includes：Continuous two the 2nd SetmTime domain interval information Interval；Distribute to the described of the terminal in above-mentioned base station Set where RACHmIt is defined as the 2nd Setm；2nd SetmFor from the first SetmMiddle selection, and continuous two Individual 2nd SetmBetween interval Interval the first Setm；Shown first SetmThe random access channel resource includes One or more running time-frequency resource set Setm。
In an optional embodiment, also include in above-mentioned signaling：Trigger positioning action configured information.Such as " 0 " table Show and do not trigger positioning action；" 1 " represents triggering positioning action.
In an optional embodiment, when above-mentioned triggering positioning action configured information is triggering positioning action, the end Hold and send the accidental access signal on the RACH distributed in the signaling.In the present embodiment, terminal is sent Above-mentioned accidental access signal is used for using for the position positioning that base station carries out terminal.
In an optional embodiment, terminal is after the accidental access signal is sent to the base station, above-mentioned side Method also includes：Terminal receives base station after detection accidental access signal, the accidental access response message sent according to testing result； Wherein, the accidental access response message includes at least one of following information：Subcarrier spacing configured information；The son load of configuration Wave number amount instruction information.In the present embodiment, subcarrier spacing configured information can be used to refer to son load when Msg3 message is sent Wave spacing is configured.
In an optional embodiment, the number of subcarriers configured information of above-mentioned subcarrier spacing configured information and configuration Indicated by combined coding mode.
With reference to specific embodiment, the present invention will be described：
Specific embodiment 1
In a communications system, terminal can be with selecting corresponding sequence, and at least according to the first rule from arrangement set Accidental access signal is generated according to the sequence of selection；Terminal sends accidental access signal to base station by RACH.
In the present embodiment, terminal can be divided into 2 set, i.e. first terminal set and second terminal set, and First terminal set and second terminal set can meet following condition：
The terminal that first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, second terminal set Including terminal be using single sub-carrier transmit Msg3 message terminal.
Wherein, above-mentioned arrangement set can include the sequence that 2 length are N=4, i.e.,
The operation to transmitting terminal is illustrated first below：
Terminal with according to first rule corresponding sequence is selected from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal from arrangement set according to the first rule with selecting corresponding sequence(j=0 Or 1) after, accidental access signal is generated in accordance with the following steps：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,The expression formula of corresponding time domain is0≤q ≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：Above-mentioned terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Define GroupnFor { CPn,Sn, as terminal is sent(0≤j≤J-1,0≤n≤N-1) is corresponding The expression-form of time-domain signal；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Define Group0~GroupN-1Elementary cell (Unit) as composition accidental access signal (corresponds to Above-mentioned unit).
Step 6：The accidental access signal that terminal is sent is repeated to be formed for H times by Unit in time domain, or, what terminal was sent Accidental access signal is formed by a Unit, wherein, when accidental access signal is formed by a Unit, connect at random sending this Accidental access signal is repeated to be transmitted again for H times when entering signal；
Wherein, the number of repetition H of different grades of terminal configuration is different.
Alternatively, above-mentioned grade can include at least one of：Coverage enhancement grade；Physical channel repeats transmission etc. Level；The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration can be 3.75KHz, time domain Symbol lengthsCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain is long Spend for 1.6ms (millisecond).Due to N=4, then Group0~Group3The base of the accidental access signal is generated as the terminal The length of this unit (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain are as shown in Fig. 2 Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, the number of repetition of the terminal configuration is 1 time, then only needs to send elementary cell (Unit) one It is secondary.
In the present embodiment, the terminal sends the random access channel resource of accidental access signal occupancy included in 1 Running time-frequency resource set SetmIn, m is the SetmIndex.As shown in figure 3, the SetmInclude 12 subcarriers on frequency domain, Respectively Subcarrior0~Subcarrior11, the SetmLength is at least the 4 of Unit time domain length in time domain Times, in the present embodiment, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, in addition to 0.4ms Guard time (Guard Time).The terminal is in SetmIn Resource 0 on send Unit respectively.
The operation to receiving terminal is illustrated below：
Action performed by receiving terminal includes：
Step 1：Base station receives Group0~Group3On data, and on 5 symbols in each group receive To data merge, obtain Group0~Group3Reception data Y0, Y1, Y2, Y3 after upper merging；
Step 2：Calculate, obtain [Corr1, Corr2] according to formula below：
Step 3：Base station carries out relevant detection with [1,1] and [1, -1] and [Corr1, the Corr 2] that receives respectively, when [1,1] is more than the energy value that [1, -1] is detected with [Corr1, Corr 2] with the energy value that [Corr1, Corr 2] is detected, then sentences The code for determining terminal transmission is code0；Otherwise, it is determined that the code that UE is sent is code1.
Step 4：Base station further completes terminal uplink synchronization timing error after the code that terminal is sent is judged Estimation.
Base station is detected in the accidental access signal for successfully completing terminal transmission and the up Timing Synchronization deviation of terminal is estimated After meter, will send accidental access response message (Random Access Response, referred to as RAR, are called and do message 2, Message2, abbreviation Msg2) give terminal.Terminal receives RAR message, obtains up timing synchronisation information and ascending resource.But It not can determine that RAR message is destined to terminal oneself without being destined to other terminals now, because there is difference Terminal the possibility of identical accidental access signal is sent on identical time-frequency resources (such case is called to be connect at random Enter conflict), it is that this terminal needs to send message 3 (Message3, referred to as Msg3) on the ascending resource distributed in RAR to solve Certainly random access collision.The specific ID of a terminal can be carried in initial random access procedure, in Msg3, for distinguishing not Same terminal.
Msg3 message is sent on the Msg3 message sources that terminal is configured in base station, base station is receiving the Msg3 of terminal transmission Afterwards, such random access collision is finally solved by sending message 4 (Message4, referred to as Msg4).Wherein, meeting in Msg4 The specific ID that carried terminal is sent in Msg3.Terminal receives the Msg4 message of base station transmission, and the ID wherein carried The specific ID for reporting base station in Msg3 with oneself is consistent, then terminal is considered as oneself having won this Stochastic accessing punching It is prominent, Stochastic accessing success；Otherwise, terminal thinks this access failure, and re-starts random access procedure.
Alternatively, 2 length include at least one of for N=4 sequence in arrangement set：
Wherein, A isC is constant,
Alternatively, first terminal set and second terminal set can also be at least one of：
The terminal that first terminal set includes is to support the terminal of multiple subcarrier simultaneous transmissions, and second terminal set bag The terminal included is only to support the terminal of single sub-carrier transmission；
The terminal that first terminal set includes transmits the terminal of upstream data, and second terminal collection for the multiple subcarriers of use The terminal that closing includes is the terminal that upstream data is transmitted using single sub-carrier；
The terminal that the terminal that first terminal set includes is transmitted over the plurality of subcarriers for Msg3 message bearings, and the second end The terminal that end set includes only is carried on the terminal of single sub-carrier transmission for Msg3 message.
Specific embodiment 2
In communication system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding sequence of selection Column-generation accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to which multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set.
Wherein, above-mentioned arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), can generate in accordance with the following steps with Machine accesses signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,The expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：Above-mentioned terminal is except sending SnOutside, also send：
Cyclic prefix CPn, wherein, the cyclic prefix CPn={ Sn[QK-L+1],…,Sn[QK] }, L represents what CP included Time-domain sampling interval TsQuantity.
Step 4：Group can be definednFor { CPn,Sn, as terminal is sent(0≤j≤J-1,0≤n≤N-1) is right The expression-form for the time-domain signal answered；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Define Group0~GroupN-1The elementary cell of the accidental access signal is generated as the terminal (Unit)；
Step 6：The accidental access signal that above-mentioned terminal is sent is repeated to constitute for H times by Unit in time domain；
Alternatively, the number of repetition H of different grades of terminal configuration is different.
Alternatively, the grade of terminal includes at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain are as shown in figure 4, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, the number of repetition H=1 of terminal configuration, then only need to send elementary cell (Unit) once.
In the present embodiment, terminal sends the random access channel resource of accidental access signal occupancy included in 1 time-frequency Resource collection SetmIn, m is the SetmIndex.As shown in figure 5, the SetmInclude 12 subcarriers on frequency domain, respectively For Subcarrior0~Subcarrior11, the SetmLength is at least 4 times of Unit time domain length in time domain, this In embodiment, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, include 0.4ms protection Time (Guard Time).SetmThe 7.5kHz that is respectively configured with up and down of the frequency resource of occupancy protects bandwidth (Guard band)； The terminal is in SetmIn subset 0 on send Unit respectively.
Base station can according to the following steps receiving terminal send accidental access signal：
Step 1：Base station receives Group0~Group3On data, and on 5 symbols in each group receive To data merge, obtain Group0~Group3Reception data Y0, Y1, Y2, Y3 after upper merging；
Step 2：[Y0, Y1], [Y2, Y3] are carried out after relevant detection with [1,1] respectively, and testing result is added and is denoted as Corr1； [Y0, Y1], [Y2, Y3] are carried out after relevant detection with [1, -1] respectively, and testing result is added and is denoted as Corr2；When Corr1 is more than During Corr2, then judge the code of terminal transmission as code0；Otherwise, it is determined that the code that UE is sent is code1.
Step 3：Base station is after the code that terminal is sent is judged, the up Timing Synchronization for further completing terminal is inclined Difference estimation.
Specific embodiment 3
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to which multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set.
Wherein, above-mentioned arrangement set includes the sequence that 2 length are N=8, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequence, can be according to after (j=0 or 1) Following steps generate the accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤7) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,SnIt is that terminal is sent（0≤j≤J-1,0≤n≤N-1) correspondence Time-domain signal expression-form；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Wherein, the number of repetition H of different grades of terminal configuration is different.
Above-mentioned terminal etc. can level include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 66.7us, K=5, then GroupnTime domain length is 1.4ms (millisecond).Due to N=8, then Group0~Group7The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 11.2ms；
In the present embodiment, Group0~Group7Corresponding subcarrier in frequency domain indexes f0~f7Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6,subcarrior2,subcarrior3,subcarrior9, subcarrior8, then the terminal generate the time domain and the two dimension of frequency domain of the elementary cell (Unit) of the accidental access signal Structure is as shown in fig. 6, Group0And Group1The subcarrier of configuration is adjacent, Group2And Group3The subcarrier of configuration is adjacent, Group4And Group5The subcarrier of configuration is adjacent, Group6And Group7The subcarrier of configuration is adjacent.
Group1And Group26 subcarriers of subcarrier spacing of configuration, Group5And Group6The subcarrier spacing of configuration 6 subcarriers.Group0And Group4Sub-carrier indices interval determined according to predefined rule, Group in the present embodiment0With Group4Sub-carrier indices at intervals of 2 subcarriers；
In the present embodiment, the number of repetition H=1 of the terminal configuration, then only need to send elementary cell (Unit) one It is secondary.
In the present embodiment, the terminal sends the random access channel resource of accidental access signal occupancy included in 1 Running time-frequency resource set SetmIn, m is the SetmIndex.As shown in fig. 7, the SetmInclude 12 subcarriers on frequency domain, Respectively Subcarrior0~Subcarrior11, the SetmLength is at least the 3 of Unit time domain length in time domain Times, in the present embodiment, SetmTime domain length be 34ms, in addition to the time domain length comprising 3 Unit, in addition to 0.4ms Guard time (Guard Time).Setm7.5kHz protection bandwidth is configured with the frequency resource of occupancy in lower sideband respectively (Guard band)；The terminal is in SetmIn subset 0 on send Unit.
Base station can according to the following steps receiving terminal send accidental access signal：
Step 1：Base station receives Group0~Group7On data, and on 5 symbols in each group receive To data merge, obtain Group0~Group7Reception data Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7 after upper merging.
Step 2：[Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7] is carried out after relevant detection with [1,1,1,1,1,1,1,1], detection Results added is denoted as Corr1；[Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7] carries out relevant inspection with [1,1,1,1, -1, -1, -1, -1] After survey, testing result is added and is denoted as Corr2；When Corr1 is more than Corr2, then judge the code of terminal transmission as code0；It is no Then, judge the code of UE transmissions as code1.
Step 3：Base station is after the code that terminal is sent is judged, the up Timing Synchronization for further completing terminal is inclined Difference estimation.
Specific embodiment 4
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described second The terminal that terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier.
Wherein, above-mentioned arrangement set can include the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,Sn, as terminal is sent(0≤j≤J-1,0≤n≤N-1) is right The expression-form for the time-domain signal answered；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of different grades of terminal configuration is different.
Alternatively, the grade of terminal can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms.
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain are as shown in figure 8, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, the number of repetition H=1 of the terminal configuration, then only need to send elementary cell (Unit) one It is secondary.
In the present embodiment, the terminal sends the random access channel resource of accidental access signal occupancy included in 1 Running time-frequency resource set SetmIn, m is the SetmIndex.As shown in figure 9, the SetmInclude 12 subcarriers on frequency domain, Respectively Subcarrior0~Subcarrior11, the SetmLength is at least the 4 of Unit time domain length in time domain Times, in the present embodiment, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, in addition to 0.4ms Guard time (Guard Time).The terminal is in SetmIn subset 0 on send Unit respectively.
When upstream bandwidth includes 48 subcarriers, 4 Set can be at most configuredm, i.e., As shown in Figure 10.The Set that terminal is configured is designated as by 2bitmFrequency domain position, for example configure " 00 " instruction terminal configuration SetmForConfigure the Set of " 01 " instruction terminal configurationmForConfigure the Set of " 10 " instruction terminal configurationmForMatch somebody with somebody Put the Set of " 11 " instruction terminal configurationmFor
Base station can according to the following steps receiving terminal send accidental access signal：
Step 1：Base station receives Group0~Group3On data, and on 5 symbols in each group receive To data merge, obtain Group0~Group3Reception data Y0, Y1, Y2, Y3 after upper merging.
Step 2：Calculate, obtain [Corr1, Corr 2] according to formula below.
Step 3：Base station carries out relevant detection with [1,1] and [1, -1] and [Corr1, the Corr 2] that receives respectively, when [1,1] is more than the energy value that [1, -1] is detected with [Corr1, Corr 2] with the energy value that [Corr1, Corr 2] is detected, then sentences The code for determining terminal transmission is code0；Otherwise, it is determined that the code that UE is sent is code1.
Step 4：Base station is after the code that terminal is sent is judged, the up Timing Synchronization for further completing terminal is inclined Difference estimation.
Alternatively, the Set of terminal configuration can also be designated as by bitmap bitmapm, for example, when upstream bandwidth includes 48 subcarriers, can at most configure 4 Setm, i.e.,As shown in Figure 10.Pass through 4bit's Bitmap is designated as the Set of terminal configurationmFrequency domain position, for example configure " 0001 " instruction terminal configuration SetmForMatch somebody with somebody Put the Set of " 0010 " instruction terminal configurationmForConfigure the Set of " 0100 " instruction terminal configurationmForConfigure " 1000 " The Set of instruction terminal configurationmForConfigure the Set of " 1100 " instruction terminal configurationmFor
Specific embodiment 5
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described second The terminal that terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier.
Wherein, the arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of corresponding time domain isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.FfnIt is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,The expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,Sn, as terminal is sent(0≤j≤J-1,0≤n≤N-1) is right The expression-form for the time-domain signal answered；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of the different grades of terminal configuration is different.
Alternatively, the grade of above-mentioned terminal can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 11, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, the number of repetition H=8 of the terminal configuration, then need to be repeated 8 times transmission elementary cell (Unit)。
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 12, the SetmIncluding 12 subcarriers on frequency domain, respectively Subcarrior0~Subcarrior11, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, include 0.4ms guard time (Guard Time)。
Two adjacent running time-frequency resource set SetmAnd Setm+1Between be spaced Vms, as shown in figure 13, wherein V value is At least one of：
V=0；
V=2y, wherein, y is the positive integer more than or equal to 0；
Y can be using span as { 1,2,3,4,5,6,7 } in the present embodiment.
In the present embodiment, the terminal is in SetmAnd Setm+1In on be repeated 8 times transmission Unit.
Alternatively, two adjacent running time-frequency resource set SetmAnd Setm+1Between be spaced Vms, wherein Vms can also be according to Following manner is determined：
V value is at least one of：
V=0；
V=B × 2y, wherein, y is the positive integer more than or equal to 0；B is SetmTime domain length.
Y span can be { 1,2,3,4,5,6,7 } in the present embodiment.
Specific embodiment 6
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described second The terminal that terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier.
Wherein, the arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,The expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Define GroupnFor { CPn,SnIt is that terminal is sentWhen (0≤j≤J-1,0≤n≤N-1) is corresponding The expression-form of domain signal；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit)；
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of the different grades of terminal configuration is different.
Alternatively, the grade of above-mentioned terminal can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 14, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, the number of repetition H=8 of the terminal configuration, then need to be repeated 8 times transmission elementary cell (Unit)。
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 15, the SetmIncluding 12 subcarriers on frequency domain, respectively Subcarrior0~Subcarrior11, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, include 0.4ms guard time (Guard Time)。
Running time-frequency resource set SetmConfiguration cycle be Vms, as shown in figure 16, wherein V value is：
V=2y, wherein, y is positive integer；
In the present embodiment, y span can be { 5,6,7,8,9,10,11,12 }.
In the present embodiment, the terminal is in SetmAnd Setm+1In on be repeated 8 times transmission Unit.
Alternatively, running time-frequency resource set SetmConfiguration cycle be Vms, wherein Vms can also determine as follows：
V value is：
V=B × 2y, wherein, y is the integer more than or equal to 0；B is SetmTime domain length.
Y span can be { 0,1,2,3,4,5,6,7 } in the present embodiment.
The terminal is in SetmAnd Setm+1In on be repeated 8 times transmission Unit.
Specific embodiment 7
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described second The terminal that terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier.
Wherein, the arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,SnIt is that terminal is sent(0≤j≤J-1,0≤n≤N-1) correspondence Time-domain signal expression-form；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of different grades of terminal configuration is different.
Alternatively, above-mentioned terminal grade can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 17, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 18, the SetmIncluding 12 subcarriers on frequency domain, respectively Subcarrior0~Subcarrior11, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, include 0.4ms guard time (Guard Time)。
Running time-frequency resource set SetmConfiguration cycle be Vms, V=B × 2y, wherein, y is the positive integer more than or equal to 0；B For SetmTime domain length.
Y span can be { 0,1,2,3,4,5,6,7 } in the present embodiment.
4 Set can be at most configured in y=2, i.e. Vms in the present embodimentm, as shown in figure 19, due to each SetmBag 4 subset are included, then 16 subset can be at most configured in Vms, the index for defining subset is subset 0 to subset 15.In the present embodiment, terminal, which has altogether, is divided into 3 grades, grade 1, grade 2 and grade 3, and Unit weights in time domain are corresponded to respectively Multiple transmission times is 2 times, 4 times and 8 times.Subset 0 to subset 1 is then distributed to the terminal of grade 1, by subset 2 to Subset 5 distributes to the terminal of grade 2, and subset 6 to subset 13 is distributed to the terminal of grade 3.Different time-frequency money Source set SetmConfiguration cycle between use the identical subset methods of salary distribution.
Specific embodiment 8
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described second The terminal that terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier.
Wherein, the arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,SnIt is that terminal is sent(0≤j≤J-1,0≤n≤N-1) correspondence Time-domain signal expression-form；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of the different grades of terminal configuration is different.
Alternatively, the grade of above-mentioned terminal can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 20, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 21, the SetmIncluding 12 subcarriers on frequency domain, respectively Subcarrior0~Subcarrior11, SetmTime domain length be 26ms, in addition to the time domain length comprising 4 Unit, include 0.4ms guard time (Guard Time)。
Running time-frequency resource set SetmConfiguration cycle be Vms, V=B × D, wherein, D is positive integer more than or equal to 1；B is SetmTime domain length.
D is preferably 2x, wherein, x is the integer more than or equal to 0；
That is D Set can be at most configured in Vmsm, due to each SetmIncluding 4 subset, then it can at most match somebody with somebody in Vms 4*D subset is put, the index for defining subset is subset 0 to subset (4*D-1).In the present embodiment, terminal has altogether G grade, respectively 0~grade of grade (G-1) can be divided into, wherein, grade g (0≤g≤G-1) (corresponds to above-mentioned It is Repetition that hierarchy index, which is that terminal g) sends accidental access signal to need Unit to repeat transmission times in time domain,g。 Therefore, within a configuration cycle, the terminal for being grade g configures continuous RepetitiongIndividual subset, and starting Subset indexes StartingSubsetIndexgCalculated according to formula below：
Wherein, the identical subset methods of salary distribution can be used between different configuration cycles.
Specific embodiment 9
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is to support that single sub-carrier is transmitted and subcarrier spacing is 3.75kHz's Terminal, the terminal that the second terminal set includes is the terminal that the transmission of support single sub-carrier and subcarrier spacing are 15kHz.
Wherein, above-mentioned arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,SnIt is that terminal is sent(0≤j≤J-1,0≤n≤N-1) correspondence Time-domain signal expression-form；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of different grades of terminal configuration is different.
Alternatively, the grade of above-mentioned terminal includes at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 22, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 23, the SetmIncluding 12 subcarriers on frequency domain, respectively Subcarrior0~Subcarrior11, SetmTime domain length is 1 Unit time domain length.The SetmIncluding 1 subset, wherein, subset on frequency domain with SetmConfigure identical subcarrier, the length that subset length in time domain is 1 Unit；
Running time-frequency resource set SetmConfiguration cycle be Vms, V=B × D, wherein, D is integer more than or equal to 1；B is SetmTime domain length.
In the present embodiment, D=2y, wherein, y is the integer more than or equal to 0；
In the present embodiment, 16 Set can be at most configured in y=4, i.e. Vmsm, due to each SetmIncluding 1 Subset, then can at most configure 16 subset in Vms, the index for defining subset is subset 0 to subset 15.This In embodiment, the terminal, which has altogether, is divided into 3 grades, respectively grade 0, grade 1, grade 2.Grade g (0≤g≤2) end It is Repetition that end, which sends accidental access signal to need Unit to repeat transmission times in time domain,g, in the present embodiment, Repetition0=2, Repetition1=4, Repetition2=8.
Within a configuration cycle, the terminal for being grade g configures continuous RepetitiongIndividual subset, and rise Beginning subset index StartingSubsetIndexgIt can be calculated according to formula below：
That is StartingSubsetIndex0=0, StartingSubsetIndex1=2, StartingSubsetIndex2 =6.
It is then that the terminal that hierarchy index is g configures continuous RepetitiongIndividual subset distribution schematic diagram such as Figure 24 It is shown.
The different SetmConfiguration cycle between, hierarchy index can for g corresponding subset allocation plans of terminal To be identical.
Specific embodiment 10
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein it is possible to multiple terminals are divided into 2 set, i.e. first terminal set and second terminal set, and first Terminal set and second terminal set meet following condition：
The terminal that the first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, described second The terminal that terminal set includes is the terminal that Msg3 message is transmitted using single sub-carrier.
Wherein, the arrangement set includes the sequence that 2 length are N=4, i.e.,
Terminal selects corresponding sequence from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal selects sequenceAfter (j=0 or 1), institute can be generated in accordance with the following steps State accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of corresponding time domain isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.FfnIt is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,SnIt is that terminal is sent（0≤j≤J-1,0≤n≤N-1) correspondence Time-domain signal expression-form；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of the different grades of terminal configuration is different.
Alternatively, the grade of above-mentioned terminal can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 25, Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 26, the SetmIncluding 12 subcarriers on frequency domain, respectively Subcarrior0~Subcarrior11, SetmTime domain length is 1 Unit time domain length.The SetmIncluding 1 subset, wherein, subset on frequency domain with SetmConfigure identical subcarrier, the length that subset length in time domain is 1 Unit；
Running time-frequency resource set SetmConfiguration cycle be Vms, in the present embodiment, V=2y, wherein, y is more than or equal to 0 Integer；
Y=6 in the present embodiment, then V=64ms；10 Set then can be at most configured in Vmsm, due to each SetmBag 1 subset is included, then 10 subset can be at most configured in Vms, the index for defining subset is subset 0 to subset 9.In the present embodiment, the terminal, which has altogether, is divided into 3 grades, respectively grade 0, grade 1, grade 2.Grade g (0≤g≤2) Terminal send accidental access signal need Unit in time domain repeat transmission times be Repetitiong, in the present embodiment, Repetition0=1, Repetition1=2, Repetition2=4.
Within a configuration cycle, the terminal for being grade g configures continuous RepetitiongIndividual subset, and rise Beginning subset index StartingSubsetIndexgCalculated according to formula below：
That is StartingSubsetIndex0=0, StartingSubsetIndex1=1, StartingSubsetIndex2 =3, then the terminal for being g for hierarchy index configures continuous RepetitiongIndividual subset distribution schematic diagram is as shown in figure 27.
The different SetmConfiguration cycle between, hierarchy index can for g corresponding subset allocation plans of terminal To be identical.
Specific embodiment 11
In a communications system, terminal selects corresponding sequence from arrangement set, and according at least to the corresponding of selection Sequence generates accidental access signal；Terminal sends accidental access signal to base station by RACH.
Wherein, the arrangement set includes the sequence that 1 length is N=4, i.e.,Wherein J=0；
Terminal selects corresponding sequence from arrangement set, including：
Terminal selects sequence(j=0) after, it can generate in accordance with the following steps described Accidental access signal：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：The terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Group can be definednFor { CPn,SnIt is that terminal is sent(0≤j≤J-1,0≤n≤N-1) correspondence Time-domain signal expression-form；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Group can be defined0~GroupN-1The substantially single of the accidental access signal is generated as the terminal First (Unit).
Step 6：The accidental access signal that the terminal is sent is repeated to constitute for H times by the Unit in time domain；
Alternatively, the number of repetition H of the different grades of terminal configuration is different.
Alternatively, the grade of above-mentioned terminal can include at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration is 3.75KHz, time-domain symbol LengthCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain length is 1.6ms (millisecond).Due to N=4, then Group0~Group3The substantially single of the accidental access signal is generated as the terminal The length of first (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain is as shown in figure 28.
Group0And Group1The subcarrier of configuration is adjacent, Group2And Group3The subcarrier of configuration is adjacent, Group1With Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、 Group2And Group3Sub-carrier indices.
In the present embodiment, random access channel resource includes multiple running time-frequency resource set Setm, m is the SetmRope Draw.As shown in figure 29.
Above-mentioned SetmInclude 12 subcarriers, respectively Subcarrior0~Subcarrior11, Set on frequency domainmWhen Length of field is 26ms, the guard time (Guard Time) of time domain length and 0.4ms including 4 Unit.It is described SetmInclude 4 subset, wherein, subset on frequency domain with SetmIdentical subcarrier is configured, subset is long in time domain Spend for 4 Unit length；
Running time-frequency resource set SetmConfiguration cycle be Vms, in the present embodiment, V=2y, wherein, y is more than or equal to 0 Integer；
Y=10 in the present embodiment, then V=1024ms；39 Set then can be at most configured in Vmsm, in the present embodiment, The terminal, which has altogether, is divided into 3 grades, respectively grade 0, grade 1, grade 2.Grade g (0≤g≤2) terminal send with It is Repetition that machine access signal, which needs Unit to repeat transmission times in time domain,g, in the present embodiment, Repetition0=1, Repetition1=2, Repetition2=4.
In the present embodiment with Setm=26ms sends the money of accidental access signal as grade g (0≤g≤2) terminal The base unit of source distribution.It is the N for terminal (0≤g≤2) distribution that hierarchy index is g in the present embodimentgIndividual SetmResource point Wei not 2 Setm, 2 SetmWith 4 Setm。
In the present embodiment, it is the Set for the terminal configuration that hierarchy index is gmBetween time domain interval be Lgms。
In the present embodiment, the corresponding L of terminal of different brackets indexgIt is identical；L in the present embodimentg=32ms.
In the present embodiment, the corresponding N of terminal of different brackets indexgIndividual SetmBetween resource, L is spacedβ=Lg。
In the present embodiment, first Set of the terminal for being hierarchy index g=0 configurationmInitial time and running time-frequency resource collection Close SetmConfiguration cycle initial time it is identical.
Then in V=1024ms, hierarchy index sends the resource allocation of accidental access signal for g (0≤g≤2) terminal As shown in figure 30.
For hierarchy index g=0 terminal, 2 SetmIn be configured with 8 subset altogether, then hierarchy index g=0 Terminal one has the chance of 8 transmission accidental access signals, and corresponding resource is respectively：Set0In subset0, Set0In Subset1, Set0In subset2, Set0In subset3, Set1In subset0, Set1In subset1, Set1In Subset2, Set1In subset3；Terminal randomly chooses a resource in above-mentioned 8 resources and is used as accidental access signal Transmission resource；
For hierarchy index g=1 terminal, 2 SetmIn be configured with 8 subset altogether, then hierarchy index g=1 Terminal one has the chance of 4 transmission accidental access signals, and corresponding resource is respectively：Set2In subset0, subset1, Set2In subset2, subset3, Set3In subset0, subset1, Set3In subset2, subset3；Terminal exists A resource is randomly choosed in above-mentioned 4 resources as the transmission resource of accidental access signal；
For hierarchy index g=2 terminal, 4 SetmIn be configured with 16 subset altogether, then hierarchy index g=2 Terminal one has the chance of 4 transmission accidental access signals, and corresponding resource is respectively：Set4In subset0, subset1, Subset2, subset3, Set5In subset0, subset1, subset2, subset3, Set6In subset0, Subset1, subset2, subset3, Set7In subset0, subset1, subset2, subset3；Terminal is at above-mentioned 4 A resource is randomly choosed in resource as the transmission resource of accidental access signal；
Different SetmConfiguration cycle between, hierarchy index can be phase for the g corresponding resource allocation proposal of terminal With.
Specific embodiment 12
In a communications system, terminal can be with selecting corresponding sequence, and at least according to the first rule from arrangement set Accidental access signal is generated according to the sequence of selection；Terminal sends accidental access signal to base station by RACH.
In the present embodiment, terminal can be divided into 2 set, i.e. first terminal set and second terminal set, and First terminal set and second terminal set can meet following condition：
The terminal that the first terminal set includes is the terminal that the information content carried in Msg3 message is Size1, described The terminal that second terminal set includes is the terminal that the information content carried in Msg3 message is Size2, and wherein Size1 is not equal to Size2。
Wherein, above-mentioned arrangement set can include the sequence that 2 length are N=4, i.e.,
The operation to transmitting terminal is illustrated first below：
Terminal with according to first rule corresponding sequence is selected from arrangement set, including：
Belong to the terminal selection sequence C ode of first terminal set0；Belong to the terminal selection sequence of second terminal set Code1；
Terminal from arrangement set according to the first rule with selecting corresponding sequence(j=0 Or 1) after, accidental access signal is generated in accordance with the following steps：
Step 1：Index is f on frequency domainnContinuous K symbol is taken on the subcarrier and time domain of (0≤n≤3) to send Then k-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThen above-mentioned K Symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is
Step 2：The expression formula of the corresponding time domains of 0≤k≤K-1 isIts In 0≤t≤Tk, TkFor the length of k-th of time-domain symbol.It is f for indexnSubcarrier take frequency domain resource, FOffsetFor Frequency offset amount.
It is T when the time domain sampling intervalsWhen,0≤t≤TkThe expression formula of corresponding time domain is0≤k≤K-1,0≤q≤ Q-1,For time domain sampling point quantity；
Then terminal is sent on continuous K symbolTime-domain signal expression formula be
Step 3：Above-mentioned terminal is except sending SnOutside, also send：Cyclic prefix CPn, wherein, the cyclic prefix CPn= {Sn[QK-L+1],…,Sn[QK] }, L represents the time-domain sampling interval T that CP includessQuantity.
Step 4：Define GroupnFor { CPn,Sn, as terminal is sent(0≤j≤J-1,0≤n≤N-1) is corresponding The expression-form of time-domain signal；And the different Group of n valuesnDifferent symbols are taken in time domain.
Step 5：Define Group0~GroupN-1Elementary cell (Unit) as composition accidental access signal (corresponds to Above-mentioned unit).
Step 6：The accidental access signal that terminal is sent is repeated to be formed for H times by Unit in time domain, or, what terminal was sent Accidental access signal is formed by a Unit, wherein, when accidental access signal is formed by a Unit, connect at random sending this Accidental access signal is repeated to be transmitted again for H times when entering signal；
Wherein, the number of repetition H of different grades of terminal configuration is different.
Alternatively, above-mentioned grade can include at least one of：Coverage enhancement grade；Physical channel repeats transmission etc. Level；The repetition of the message or signaling that are carried on physical channel sends grade.
In the present embodiment, the subcarrier spacing Δ f of the RACH of system configuration can be 3.75KHz, time domain Symbol lengthsCyclic prefix CPnLength is configured to 266.7us, K=5, then GroupnTime domain is long Spend for 1.6ms (millisecond).Due to N=4, then Group0~Group3The base of the accidental access signal is generated as the terminal The length of this unit (Unit) is 6.4ms；
In the present embodiment, Group0~Group3Corresponding subcarrier in frequency domain indexes f0~f3Respectively subcarrior0, subcarrior1,subcarrior7,subcarrior6, then the terminal generate the elementary cell of the accidental access signal (Unit) time domain and the two-dimensional structure of frequency domain are as shown in Fig. 2 Group0And Group1The subcarrier of configuration is adjacent, Group2With Group3The subcarrier of configuration is adjacent, Group1And Group26 subcarriers of subcarrier spacing of configuration.Further, according to Group0Sub-carrier indices can determine Group1、Group2And Group3Sub-carrier indices.
In the present embodiment, the number of repetition of the terminal configuration is 1 time, then only needs to send elementary cell (Unit) one It is secondary.
In the present embodiment, the terminal sends the random access channel resource of accidental access signal occupancy included in 1 Running time-frequency resource set SetmIn, m is the SetmIndex.As shown in figure 31, the SetmInclude 12 subcarriers on frequency domain (Subcarrior), respectively Subcarrior0~Subcarrior11, the SetmConfiguration cycle be 40ms.This implementation It is Num, and Num=10 to be used to sending the number of subcarriers that the RACH of accidental access signal takes in example, then gives tacit consent to It is in the subcarrier that 10 minimum Subcarrior of sub-carrier indices take as RACH, the present embodiment Subcarrior0~Subcarrior9, the Subcarrior0~Subcarrior9 are the composition accidental access signal Group in unit Unit0Group is removed in sub-carrier indices where during transmission, Unit0Outside Group1、Group2With Group3The frequency domain resource at place is by Group0Frequency domain position and determined according to predefined rule.In the present embodiment, Group0、 Group1、Group2And Group3Respectively correspond to sub-carrier indices be Subcarrior0, Subcarrior1, Subcarrior7, Subcarrior6。
Base station is detected in the accidental access signal for successfully completing terminal transmission and the up Timing Synchronization deviation of terminal is estimated After meter, will send accidental access response message (Random Access Response, referred to as RAR, are called and do message 2, Message2, abbreviation Msg2) give terminal.Terminal receives RAR message, obtains up timing synchronisation information and ascending resource.But It not can determine that RAR message is destined to terminal oneself without being destined to other terminals now, because there is difference Terminal the possibility of identical accidental access signal is sent on identical time-frequency resources (such case is called to be connect at random Enter conflict), it is that this terminal needs to send message 3 (Message3, referred to as Msg3) on the ascending resource distributed in RAR to solve Certainly random access collision.The specific ID of a terminal can be carried in initial random access procedure, in Msg3, for distinguishing not Same terminal.
Msg3 message is sent on the Msg3 message sources that terminal is configured in base station, base station is receiving the Msg3 of terminal transmission Afterwards, such random access collision is finally solved by sending message 4 (Message4, referred to as Msg4).Wherein, meeting in Msg4 The specific ID that carried terminal is sent in Msg3.Terminal receives the Msg4 message of base station transmission, and the ID wherein carried The specific ID for reporting base station in Msg3 with oneself is consistent, then terminal is considered as oneself having won this Stochastic accessing punching It is prominent, Stochastic accessing success；Otherwise, terminal thinks this access failure, and re-starts random access procedure.
In the present embodiment, being sent to the RAR message of terminal includes following information：
The configured information for the subcarrier spacing that Msg3 is used when sending；
Number of subcarriers configured information when Msg3 is sent；
It is " configured information for the subcarrier spacing that Msg3 is used when sending " and " sub when Msg3 is sent in the present embodiment Number of carrier wave configured information " is indicated by combined coding mode；
When terminal uses the transmission means of single sub-carrier to send the Msg3 message, and the interval of the single sub-carrier There are two kinds of configurations of 3.75kHz and 15kHz.When up available bandwidth is 180kHz, between 3.75kHz single sub-carrier Every most 48 subcarriers can be configured in up available bandwidth, sub-carrier indices are A0~A47；For 15kHz single son Most 12 subcarriers can be configured in carrier wave interval, up available bandwidth, sub-carrier indices are B0~B11；The then joint Coded system is designated as：
6bits combined coding configured information is configured, wherein " 000000 "~" 101111 " instruction sub-carrier indices A0~ A47,
" 110000 "~" 111011 " indicate sub-carrier indices B0~B11.
When terminal using the transmission means of multiple subcarriers sends the Msg3 message, and subcarrier at intervals of 15kHz. When up available bandwidth is 180kHz, most 12 subcarriers can be configured in up available bandwidth, sub-carrier indices are 0~ 11, the frequency domain resource of the Msg3 message is assigned following several configurations：
1st, 12 whole subcarriers of sub-carrier indices { 0,1,2,3,4,5,6,7,8,9,10,11 } are taken,
2nd, 6 subcarriers of occupancy sub-carrier indices { 0,1,2,3,4,5 }, or occupancy sub-carrier indices 6,7,8,9,10, 11 } 6 subcarriers；
3rd, 3 subcarriers of sub-carrier indices { 0,1,2 } are taken, or take 3 son loads of sub-carrier indices { 3,4,5 } Ripple, or 3 subcarriers of sub-carrier indices { 6,7,8 } are taken, or take 3 subcarriers of sub-carrier indices { 9,10,11 }.
Then the combined coding mode is designated as：
3bits combined coding configured information is configured, wherein " 000 " instruction occupancy sub-carrier indices 0,1,2,3,4,5, 6,7,8,9,10,11}；" 001 " " 010 " indicates respectively 6 subcarriers and occupancy for taking sub-carrier indices { 0,1,2,3,4,5 } 6 subcarriers of sub-carrier indices { 6,7,8,9,10,11 }；" 011 " " 100 " " 101 " " 110 " indicate respectively occupancy subcarrier rope Draw 3 subcarriers, 3 subcarriers of occupancy sub-carrier indices { 3,4,5 }, occupancy sub-carrier indices { 6,7,8 } of { 0,1,2 } 3 subcarriers and 3 subcarriers of { 9,10,11 }.
Specific embodiment 13
In NB-IoT systems, a width of 180kHz of up-link band.As shown in figure 32, in the present embodiment, base station configuration with The upstream bandwidth that machine access channel (PRACH) takes is 45kHz, and PRACH subcarrier spacing Δs f is 3.75kHz, and 12 are configured altogether Individual PRACH subcarriers, respectively 0~Subcarrior of Subcarrior 11.
Define Group1~Group4It is used as the elementary cell (Unit) of composition accidental access signal (Preamble).Wherein, Group1~Group4Sent respectively on different subcarriers；Include 1 cyclic prefix (CP) and 5 on each Group Preamble symbols (symbol), a Preamble symbol time-domain symbol length
When CP length is 0.2667ms, each Group length is 0.2667+0.2667*5=1.6ms, and Unit length is 1.6*4=6.4ms；
When CP length is 0.0667ms, each Group length is 0.0667+0.2667*5=1.4ms, and Unit length is 1.4*4=5.6ms；
In the present embodiment, CP length is 0.2667ms, then Unit length is 6.4ms；
When terminal selects Group1When the Subcarrior of transmission is Subcarrior0, Group2The Subcarrior of transmission For Subcarrior1, Group3The Subcarrior of transmission is Subcarrior7, Group4The Subcarrior of transmission is Subcarrior6, as shown in figure 32.
In order to avoid PRACH in NB-IoT systems and detectable signal, (Sounding Reference Signal are referred to as SRS the interference (SRS can be NB-IoT system configurations, or other systems configuration) between), NB-IoT systems To increase the second guard time (Guard Time 2, referred to as GT2) in PRACH resource distributions.In the present embodiment, SRS comes from LTE system, and, it is necessary to which it is 0.4ms's to introduce time span after the accidental access signal that terminal completes 1 Group is sent GT2, as shown in figure 32, then Unit length is changed into 8ms；
The time span T_Unit1 of the elementary cell (Unit) of accidental access signal (Preamble) is 8ms；
In the present embodiment, the transmission cycle of the accidental access signal (Preamble) sent on PRACH is 1280ms；
The starting location offset amount that Preamble is sent is 128ms.
The repetition transmission times of the elementary cell of Preamble transmission, R1；R1 is in { 1,2,4,8,16,32,64,128 } R1=64 in selection, the present embodiment；
The guard time (Guard Time) of Preamble transmission, GT1=1ms；
It is 512ms that 64 repetitions of the elementary cell that Preamble is transmitted in the present embodiment, which send and have length altogether,；
When the iterative transfer times of the Preamble elementary cells transmitted are more than R1set, R1set Preamble is completed , it is necessary to introduce Preamble transmission intercal Gap1 after the transmission of elementary cell, within the Gap1 times, Preamble is not transmitted. R1set=32, Gap1=20ms in the present embodiment, then the 64 of Preamble elementary cell time repetition transmission structure such as Figure 33 institutes Show.
Specific embodiment 14
In NB-IoT systems, a width of 180kHz of up-link band.As shown in figure 34, in the present embodiment, base station configuration with The upstream bandwidth that machine access channel (PRACH) takes is 45kHz, and PRACH subcarrier spacing Δs f is 3.75kHz, and 12 are configured altogether Individual PRACH subcarriers, respectively 0~Subcarrior of Subcarrior 11.
Define Group1~Group4It is used as the elementary cell (Unit) of composition accidental access signal (Preamble).Wherein, Group1~Group4Sent respectively on different subcarriers；Include 1 cyclic prefix (CP) and 5 on each Group Preamble symbols (symbol), a Preamble symbol time-domain symbol length
When CP length is 0.2667ms, each Group length is 0.2667+0.2667*5=1.6ms, and Unit length is 1.6*4=6.4ms；
When CP length is 0.0667ms, each Group length is 0.0667+0.2667*5=1.4ms, and Unit length is 1.4*4=5.6ms；
In the present embodiment, CP length is 0.2667ms, then Unit length is 6.4ms；
When terminal selects Group1When the Subcarrior of transmission is Subcarrior0, Group2The Subcarrior of transmission For Subcarrior1, Group3The Subcarrior of transmission is Subcarrior7, Group4The Subcarrior of transmission is Subcarrior6, as shown in figure 34.
In order to avoid PRACH in NB-IoT systems and detectable signal, (Sounding Reference Signal are referred to as SRS the interference (SRS can be NB-IoT system configurations, or other systems configuration) between), NB-IoT systems To increase the second guard time (Guard Time 2, referred to as GT2) in PRACH resource distributions.In the present embodiment, SRS comes from LTE system, and, it is necessary to which it is 0.8ms's to introduce time span after the accidental access signal that terminal completes 2 Group is sent GT2, as shown in figure 34, then Unit length is changed into 8ms；
The time span T_Unit1 of the elementary cell (Unit) of accidental access signal (Preamble) is 8ms；
In the present embodiment,
The transmission cycle of the accidental access signal (Preamble) sent on PRACH is 1280ms；
The starting location offset amount that Preamble is sent is 128ms.
The repetition transmission times of the elementary cell of Preamble transmission, R1；R1 is in { 1,2,4,8,16,32,64,128 } R1=64 in selection, the present embodiment；
The guard time (Guard Time) of Preamble transmission, GT1=1ms；
It is 512ms that 64 repetitions of the elementary cell that Preamble is transmitted in the present embodiment, which send and have length altogether,；
When the iterative transfer times of the Preamble elementary cells transmitted are more than R1set, R1set Preamble is completed , it is necessary to introduce Preamble transmission intercal Gap1 after the transmission of elementary cell, within the Gap1 times, Preamble is not transmitted. R1set=32, Gap1=20ms in the present embodiment, then the 64 of Preamble elementary cell time repetition transmission structure such as Figure 35 institutes Show.
Specific embodiment 15
In NB-IoT systems, a width of 180kHz of up-link band.As shown in figure 36, in the present embodiment, base station configuration with The upstream bandwidth that machine access channel (PRACH) takes is 45kHz, and PRACH subcarrier spacing Δs f is 3.75kHz, and 12 are configured altogether Individual PRACH subcarriers, respectively 0~Subcarrior of Subcarrior 11.
Define Group1~Group4It is used as the elementary cell (Unit) of composition accidental access signal (Preamble).Wherein, Group1~Group4Sent respectively on different subcarriers；Include 1 cyclic prefix (CP) and 5 on each Group Preamble symbols (symbol), a Preamble symbol time-domain symbol length
When CP length is 0.2667ms, each Group length is 0.2667+0.2667*5=1.6ms；
When CP length is 0.0667ms, each Group length is 0.0667+0.2667*5=1.4ms；
In the present embodiment, CP length is 0.2667ms, and each Group length is 0.2667+0.2667*5=1.6ms；
When terminal selects Group1When the Subcarrior of transmission is Subcarrior0, Group2The Subcarrior of transmission For Subcarrior1, Group3The Subcarrior of transmission is Subcarrior7, Group4The Subcarrior of transmission is Subcarrior6, as shown in figure 36.
In the present embodiment, the Unit of Preamble transmission repetition transmission times R1=64；64 times Unit includes Y (Y= 64*4=256) individual Group, the index for defining 256 Group is Group0~Group255；
In order to avoid PRACH in NB-IoT systems and detectable signal, (Sounding Reference Signal are referred to as SRS the interference (SRS can be NB-IoT system configurations, or other systems configuration) between), NB-IoT systems To increase time interval (Gap) in PRACH resource distributions.In the present embodiment, SRS comes from LTE system, and when terminal completes 6 , it is necessary to introduce the Gap that time span is 0.4ms after Group accidental access signal is sent；Then introduce Gap quantity NgapFor
The index of 6 Group is GroupstartTo Groupend；Wherein, start=6 × ngap, 0≤ngap≤Ngap- 1；End=start+5.
Specific embodiment 16
In NB-IoT systems, a width of 180kHz of up-link band.As shown in figure 37, in the present embodiment, base station configuration with The upstream bandwidth that machine access channel (PRACH) takes is 45kHz, and PRACH subcarrier spacing Δs f is 3.75kHz, and 12 are configured altogether Individual PRACH subcarriers, respectively 0~Subcarrior of Subcarrior 11.
Define Group1~Group4It is used as the elementary cell (Unit) of composition accidental access signal (Preamble).Wherein, Group1~Group4Sent respectively on different subcarriers；Include 1 cyclic prefix (CP) and 5 on each Group Preamble symbols (symbol), a Preamble symbol time-domain symbol length
When CP length is 0.2667ms, each Group length is 0.2667+0.2667*5=1.6ms；
When CP length is 0.0667ms, each Group length is 0.0667+0.2667*5=1.4ms；
In the present embodiment, CP length is 0.2667ms, and each Group length is 0.2667+0.2667*5=1.6ms；
When terminal selects Group1When the Subcarrior of transmission is Subcarrior0, Group2The Subcarrior of transmission For Subcarrior1, Group3The Subcarrior of transmission is Subcarrior7, Group4The Subcarrior of transmission is Subcarrior6, as shown in figure 37.
In the present embodiment, the Unit of Preamble transmission repetition transmission times R1=64；Define 64 Unit index For Unit0~Unit63；
In order to avoid PRACH in NB-IoT systems and detectable signal, (Sounding Reference Signal are referred to as SRS the interference (SRS can be NB-IoT system configurations, or other systems configuration) between), NB-IoT systems To increase time interval (Gap) in PRACH resource distributions.In the present embodiment, SRS comes from LTE system, and when terminal completes 4 , it is necessary to introduce the Gap that time span is 0.4ms after Unit accidental access signal is sent；Then introduce Gap quantity NgapFor
The index of 4 Unit is UnitstartTo Unitend；Wherein start=4 × ngap, 0≤ngap≤Ngap-1； End=start+3.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Understood based on such, technical scheme is substantially in other words to existing The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions are to cause a station terminal equipment (can be mobile phone, calculate Machine, server, or network equipment etc.) perform method described in each of the invention embodiment.
A kind of access processing unit is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and preferred real Mode is applied, repeating no more for explanation had been carried out.As used below, term " module " can realize the soft of predetermined function The combination of part and/or hardware.Although the device described by following examples is preferably realized with software, hardware, or The realization of the combination of software and hardware is also that may and be contemplated.
Figure 38 is the structured flowchart of access processing unit according to embodiments of the present invention, and the device can apply to terminal In, as shown in figure 38, the device includes selecting module 382, generation module 384 and sending module 386, and the device is carried out below Explanation：
Sequence corresponding with terminal in selecting module 382, selection arrangement set；Generation module 384, is connected to above-mentioned selection Module 382, for generating accidental access signal according at least to corresponding sequence；Sending module 386, is connected to above-mentioned generation module 384, for sending above-mentioned accidental access signal to base station.
In an optional embodiment, above-mentioned arrangement set includes the sequence that J bar sequence lengths are N, wherein, rope The expression-form for being cited as j sequence is0≤j≤J-1,0≤n≤N-1, J is just Integer, N is positive integer.
In an optional embodiment, above-mentioned arrangement set includes R sequence subset conjunction, i.e. wrapped in arrangement set The R sequence subset that the J bar sequences included are divided into is closed, also, R sequence subset conjunction can be configured to different termination sets Close, wherein, R is positive integer.
Above-mentioned selecting module 382 can select sequence corresponding with terminal in arrangement set in the following way：From upper State during R sequence subset is closed and determine that sequence subset corresponding with the terminal set belonging to itself is closed；Sequence of the terminal from determination A sequence is selected to be used as corresponding sequence in set.Alternatively, when it is determined that sequence subset close in only 1 sequence when, choosing This 1 sequence during the sequence subset is closed is selected as corresponding sequence；When it is determined that sequence subset close in have a plurality of sequence when, from The sequence subset of determination one sequence of selection random in closing is used as corresponding sequence；Wherein, R is positive integer.In the present embodiment In, above-mentioned arrangement set is divided into R sequence subset conjunction, and therefore, in selection sequence corresponding with terminal, terminal can Sequence subset with option and installment first to the terminal set belonging to itself is closed, and then is selected again from the sequence subset conjunction of the selection Select corresponding sequence.
In an optional embodiment, above-mentioned selecting module 382 can be closed from R sequence subset in the following way It is middle to determine that sequence subset corresponding with the terminal set belonging to itself is closed：(Y+1) individual sequence is selected in being closed from R sequence subset Subclass is closed as sequence subset corresponding with the terminal set belonging to itself, wherein, Y=Mod (Cell ID, R), Cell ID The cell ID index accessed for terminal.In the present embodiment, can be that terminal set of the base station belonging to terminal configures sub- sequence It is remainder algorithm that row, which combine above-mentioned Mod (Cell ID, R), i.e. Y is obtained remainder after Cell ID divided by R.
In an optional embodiment, above-mentioned R sequence subset, which is closed, can be configured to R different termination sets respectively Close, i.e. sequence subset is closed and terminal set is one-to-one.Certainly, in the application, sequence subset is closed between terminal set It can also be many-one or one-to-many relation.
In an optional embodiment, the dividing mode of terminal set can be a variety of, below to different termination sets Dividing mode is closed to illustrate：
When the quantity of terminal set is 2,2 different termination sets are combined into first terminal set and second terminal set, The first terminal set and second terminal set meet at least one following condition：The terminal that first terminal set includes is support The terminal of multiple subcarrier simultaneous transmissions, and the terminal that second terminal set includes is only to support the end of single sub-carrier transmission End；The terminal that first terminal set includes transmits the terminal of upstream data, and second terminal set bag for the multiple subcarriers of use The terminal included is the terminal that upstream data is transmitted using single sub-carrier；The terminal that first terminal set includes is to use many height The terminal of carrier wave simultaneous transmission Msg3 message, and the terminal that second terminal set includes is to be disappeared using single sub-carrier transmission Msg3 The terminal of breath；The terminal that the terminal that first terminal set includes is transmitted over the plurality of subcarriers for Msg3 message bearings, and second The terminal that terminal set includes is the terminal that Msg3 message is only carried on single sub-carrier transmission；The end that first terminal set includes End is to support that single sub-carrier is transmitted and subcarrier spacing is fsc1Terminal, the terminal that second terminal set includes is single to support Individual sub- carrier-wave transmission and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes is to be passed using single sub-carrier Defeated upstream data and subcarrier spacing are fsc1Terminal；The terminal that second terminal set includes is using single sub-carrier transmission Upstream data and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes is using single sub-carrier transmission Msg3 message and subcarrier spacing are fsc1Terminal, the terminal that second terminal set includes be using single sub-carrier transmission Msg3 message and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes only is carried on single for Msg3 message Subcarrier is transmitted and subcarrier spacing is fsc1Terminal, the terminal that second terminal set includes be Msg3 message be only carried on list Individual sub- carrier-wave transmission and subcarrier spacing are fsc2Terminal；The terminal that above-mentioned first terminal set includes be Msg3 message in hold The information content of load is Size1 terminal, and the terminal that second terminal set includes is that the information content carried in Msg3 message is Size2 Terminal, wherein, Size1 is not equal to Size2；
When terminal set quantity be 3 when, 3 different termination sets be combined into first terminal set, second terminal set and Third terminal set, first terminal set, second terminal set and third terminal set meet at least one following condition：First The terminal that terminal set includes is supports the terminal of multiple subcarrier simultaneous transmissions, and the terminal that second terminal set includes is only to prop up Hold single sub-carrier transmission and subcarrier spacing is fsc1Terminal, the terminal that third terminal set includes is only supports single son Carrier-wave transmission and subcarrier spacing are fsc2Terminal；The terminal that first terminal set includes is using in the transmission of multiple subcarriers The terminal of row data, the terminal that second terminal set includes be use single sub-carrier transmit upstream data and subcarrier spacing for fsc1Terminal；The terminal that third terminal set includes is to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc2 Terminal；The terminal that first terminal set includes is the terminal that Msg3 message is transmitted using multiple subcarriers, second terminal set Including terminal be to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc1Terminal, third terminal set bag The terminal included is to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc2Terminal；First terminal set includes Terminal be the terminal transmitted over the plurality of subcarriers of Msg3 message bearings, the terminal that second terminal set includes is Msg3 message Only it is carried on single sub-carrier transmission and subcarrier spacing is fsc1Terminal, the terminal that third terminal set includes disappears for Msg3 Breath is only carried on single sub-carrier transmission and subcarrier spacing is fsc2Terminal；The terminal that above-mentioned first terminal set includes is The information content carried in Msg3 message is Size1 terminal, and the terminal that second terminal set includes is to carry in Msg3 message Information content is Size2 terminal, and the terminal that third terminal set includes is the end that the information content carried in Msg3 message is Size3 End, wherein, Size1, Size2, Size3 are not mutually equal；
When the quantity of terminal set is 4,4 different termination sets are combined into first terminal set, second terminal set, the Three terminal set and the 4th terminal set, first terminal set, second terminal set, third terminal set and the 4th terminal set Meet at least one following condition：The terminal that first terminal set includes is between the multiple subcarrier simultaneous transmissions of support and subcarrier It is divided into fsc1Terminal, the terminal that second terminal set includes is to support multiple subcarrier simultaneous transmissions and subcarrier spacing is fsc2 Terminal, the terminal that third terminal set includes for only support single sub-carrier transmission and subcarrier spacing is fsc3Terminal, The terminal that four terminal set include is only support single sub-carrier transmission and subcarrier spacing is fsc4Terminal；First terminal collection It is to use multiple subcarriers transmission upstream datas and subcarrier spacing is f to close the terminal that includessc1Terminal, second terminal set Including terminal be to use multiple subcarriers transmission upstream datas and subcarrier spacing is fsc2Terminal, third terminal set bag The terminal included is to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc3Terminal；4th terminal set includes Terminal be to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc4Terminal；First terminal set includes Terminal is to use multiple subcarriers transmission Msg3 message and subcarrier spacing is fsc1Terminal, the end that second terminal set includes End is to use multiple subcarriers transmission Msg3 message and subcarrier spacing is fsc2Terminal, the terminal that third terminal set includes To use, single sub-carrier transmits Msg3 message and subcarrier spacing is fsc3Terminal, the terminal that the 4th terminal set includes is Use single sub-carrier transmission Msg3 message and subcarrier spacing is fsc4Terminal；The terminal that first terminal set includes is Msg3 message bearings are transmitted over the plurality of subcarriers and subcarrier spacing is fsc1Terminal, the terminal that second terminal set includes Transmitted over the plurality of subcarriers for Msg3 message bearings and subcarrier spacing is fsc2Terminal, the end that third terminal set includes End is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc3Terminal, what the 4th terminal set included Terminal is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing is fsc4Terminal；Above-mentioned first terminal set Including terminal be terminal that the information content that carries in Msg3 message is Size1, the terminal that second terminal set includes is Msg3 The information content carried in message is Size2 terminal, and the terminal that third terminal set includes is the information that carries in Msg3 message Measure the terminal for Size3, the terminal that the 4th terminal set includes is the terminal that the information content carried in Msg3 message is Size4, Wherein, Size1, Size2, Size3, Size4 are not mutually equal.It should be noted that above-mentioned several terminal set dividing modes Only it is several examples, it would however also be possible to employ other classifying rationally modes are divided to terminal set.In the above-described embodiments, fsc1And fsc2Value is different, for example, fsc1Can be using value as 15kHz, fsc2Can be using value as 3.75kHz；Above-mentioned fsc3And fsc4 Value is different, for example, fsc3Can be using value as 15kHz, fsc4Can be using value as 3.75kHz.
In an optional embodiment, the types of the J bar sequences in above-mentioned arrangement set can be it is a variety of, below it is right The type of sequence in arrangement set is illustrated：Above-mentioned J bars sequence length is that N sequence meets at least one of：J bars The sequence that sequence length is N is orthogonal code sequence；J bar sequence lengths are that N sequence is defined orthogonal code sequence；J bars The sequence that sequence length is N is predefined sequence.
It is above-mentioned in an optional embodimentMeet at least one of： The corresponding Code of j of different valuesjInOrthogonal code, or quasiorthogonal code word each other each other；Different values The corresponding Code of jjInOrthogonal code, or quasiorthogonal code word each other each other；J pairs of different values The Code answeredjInOrthogonal code, or quasiorthogonal code word each other each other, wherein, 0≤i≤N/2-1.
In an optional embodiment, above-mentioned N value can be one below：2,4,6,8.
Each sequence in arrangement set is illustrated below：
Alternatively, J=1 is worked as, and during N=4, J bars sequence length includes at least one of for N sequence：
When working as R=2, J=2, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, Code0 And Code1In the terminal that is configured in first terminal set, another is configured to the end in second terminal set End；When working as R=2, J=2, and N=8, J bars sequence length includes at least one of for N sequence： Wherein, Code0And Code1In the terminal that is configured in first terminal set, it is another The individual terminal being configured in second terminal set；
When working as R=3, J=3, and N=4, J bars sequence length includes at least one of for N sequence： In any 3； In any 3； Wherein, 3 sequence lengths are individually configured to the terminal in 3 terminal set for N sequence, i.e. 3 sequence lengths are N's Sequence and 3 terminal set can carry out any pair one combination configurations；
When working as R=4, J=4, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, 4 sequences Row length is individually configured to the terminal in 4 terminal set for N sequence, i.e. sequence and 4 ends of 4 sequence lengths for N End set can carry out any pair one combination configurations；Wherein, A isC is constant,
In an optional embodiment, when sequence corresponding with terminal isWhen, Above-mentioned generation module 384 can generate accidental access signal in the following way：Determine that index is f on frequency domainnSubcarrier and time domain on Continuous K symbol is taken to sendK-th of symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is Above-mentioned K symbol and subcarrier fnThe frequency-domain expression of the signal of upper transmission is Wherein, 0≤k≤K-1；According at least toDetermine accidental access signal.
In an optional embodiment, above-mentioned generation module 384 can basis in the following wayDetermine accidental access signal：The expression formula of corresponding time domain isWherein 0≤t≤Tk, TkFor the length of k-th of time-domain symbol,It is f for indexn's The frequency domain resource that subcarrier takes, FOffsetFor frequency offset amount；And/or, it is T when the time domain sampling intervalsWhen,It is corresponding Time domainExpression formula be Wherein, 0≤t≤Tk, TkFor the length of k-th of time-domain symbol, 0≤k≤K-1,0≤q≤Q-1,Counted for time-domain sampling Amount；The terminal is sent on continuous K symbolTime-domain expression beAt least According to above-mentionedDetermine accidental access signal.
In an optional embodiment, above-mentioned generation module 384 can in the following way according at least toDetermine accidental access signal：Cyclic prefix CP is generated according to the following formulan, CPn={ Sn[QK-L +1],…,Sn[QK] }, L represents CPnThe time-domain sampling interval T includedsQuantity；Then terminal is in subcarrier fnUpper transmission with The expression formula of machine access signal is Groupn={ CPn,Sn, terminal is in subcarrier f0,f1,…,fN-1The Stochastic accessing letter of upper transmission Number expression formula be { Group0,Group1,…GroupN-1}；Wherein, the different Group of n valuesnTaken in time domain different Symbol.
In an optional embodiment, Group0~GroupN-1To constitute the unit Unit of above-mentioned accidental access signal, Above-mentioned sending module 386 can send accidental access signal in the following way to base station：It is Stochastic accessing to determine a Unit Signal, and accidental access signal is repeated to be transmitted for H times；And/or, Unit is repeated to H formation Stochastic accessing in time domain Signal, concurrently serves and states accidental access signal.
In an optional embodiment, above-mentioned terminal is in subcarrier fnOn be sent completely accidental access signal GroupnIt Afterwards, it is necessary to introduce the interval that time span is Gap, wherein, do not retransmited for terminal in Gap interval in the time span GroupnAccidental access signal afterwards, above-mentioned terminal continues to send Group after time span is Gap intervalnAfterwards Accidental access signal.
In an optional embodiment, work as N=4, K=5, CPnTime domain length be 266.7us, send Stochastic accessing During a width of 3.75kHz of the subcarrier spacing or sub-carrier bin of signal, above-mentioned Gap time domain length is 0.4ms；And/or, work as N= 4, K=5, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or sub-carrier bin it is a width of During 3.75kHz, above-mentioned Gap time domain length is 0.6ms；And/or, work as N=4, K=5, CPnTime domain length be 8192*Ts, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 12288*Ts, Wherein, Ts=32.55ns；And/or, work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns.
In an optional embodiment, repeat to include Y Group that (Y Group is Group H time of above-mentioned Unit0 ~GroupN-1、Group0~GroupN-1、Group0~GroupN-1..., it is repeated H times altogether), Y Group can be defined Index be Group0~GroupY-1, wherein, Y=H*N；When terminal completes GroupstartTo GroupendY Group (y altogether Individual Group call number can be continuous) accidental access signal transmission after, it is necessary to introduce time span for Gap Interval, wherein, accidental access signal is not retransmited for terminal in Gap interval in time span, the terminal is in the time Length sends Group for continuation after Gap intervalendAccidental access signal afterwards；Wherein, 0≤start≤end≤Y-1, y≤Y。
In an optional embodiment, start=offset+y × Ngap, wherein, NgapIt is Gap to introduce time span Interval quantity；Offset is first GroupstartIndex amount of bias；Or, start=y × Ngap, wherein, Ngap To introduce the quantity at the interval that time span is Gap.
In an optional embodiment,OrOr Ngap=Y/y.
In an optional embodiment, end=start+y-1.
In an optional embodiment, above-mentioned Gap meets at least one following condition：Y × L_G+Gap=T × TimeUnit, wherein, L_G is Group time span, and Gap >=0, T is positive integer, and TimeUnit is a kind of time span Linear module；Y × L_G+Gap=T × TimeUnit, wherein L_G are Group time span, and Gap >=0, T is positive integer and T To meet T × TimeUnit>Y × L_G minimum value, TimeUnit is a kind of linear module of time span.In the present embodiment In, TimeUnit can be second, millisecond, microsecond, nanosecond, frame (frame), subframe (Subframe), time slot (slot).
In an optional embodiment, above-mentioned terminal is needed after Unit accidental access signal is sent completely The interval that time span is Gap is introduced, wherein, after the time span does not retransmit Unit for terminal in Gap interval Accidental access signal, terminal above-mentioned time span for Gap interval after continue send Unit after Stochastic accessing letter Number.
In an optional embodiment, work as N=4, K=5, CPnTime domain length be 266.7us, send Stochastic accessing During a width of 3.75kHz of the subcarrier spacing or sub-carrier bin of signal, Gap time domain length is 0.6ms；And/or, work as N=4, K= 5, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.4ms；And/or, work as N=4, K=5, CPnTime domain length be 8192*Ts, send Stochastic accessing letter Number subcarrier spacing or sub-carrier bin a width of 3.75kHz when, Gap time domain length is 18432*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing Or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns.
In an optional embodiment, the index for defining above-mentioned Unit H repetition is Unit0~UnitH-1, work as end End completes UnitstartTo UnitendThe accidental access signal of y Unit (y Unit call number can be continuous) is sent out altogether , it is necessary to introduce the interval that time span is Gap after sending, wherein, do not retransmited for terminal in Gap interval in the time span Accidental access signal, terminal continues to send Unit after above-mentioned time span is Gap intervalendStochastic accessing letter afterwards Number；Wherein, 0≤start≤end≤Y-1, y≤Y.
In an optional embodiment, start=offset+y × Ngap, wherein, NgapIt is Gap to introduce time span Interval quantity；Offset is first UnitstartIndex amount of bias；Or, start=y × Ngap, wherein, Ngap To introduce the quantity at the interval that time span is Gap.
In an optional embodiment,OrOr Ngap=Y/y.
In an optional embodiment, end=start+y-1.
In an optional embodiment, above-mentioned Gap meets at least one following condition：Y × L_U+Gap=T × TimeUnit, wherein, L_G is Unit time span, and gap >=0, T is positive integer, and TimeUnit is a kind of degree of time span Measure unit；Y × L_U+Gap=T × TimeUnit, wherein, L_G is Unit time span, and Gap >=0, T is positive integer and T is Meet T × TimeUnit>Y × L_U minimum value, TimeUnit is a kind of linear module of time span.In the present embodiment, TimeUnit can be second, millisecond, microsecond, nanosecond, frame (frame), subframe (Subframe), time slot (slot).
In an optional embodiment, work as N=4, K=5, H=1, CPnTime domain length be 8192*Ts, send random When accessing the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of signal, Gap time domain length is 18432*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=2, CPnTime domain length be 8192*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=4, CPnTime domain length be 8192*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；And/or, Work as N=4, K=5, H=8, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or subcarrier During with a width of 3.75kHz, Gap time domain length is 24576*Ts, wherein, Ts=32.55ns；And/or, work as N=4, K=5, H =16, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or a width of 3.75kHz of sub-carrier bin When, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；And/or, work as N=4, K=5, H=1, CPnTime domain Length is 2048*Ts, and when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain is long Spend for 12288*Ts, wherein, Ts=32.55ns；And/or, work as N=4, K=5, H=2, CPnTime domain length be 2048*Ts, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 24576*Ts, Wherein, Ts=32.55ns；And/or, work as N=4, K=5, H=4, CPnTime domain length be 2048*Ts, send Stochastic accessing letter Number subcarrier spacing or sub-carrier bin a width of 3.75kHz when, Gap time domain length is 18432*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=8, CPnTime domain length be 2048*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts= 32.55ns；And/or, work as N=4, K=5, H=16, CPnTime domain length be 2048*Ts, send accidental access signal son load Wave spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；And/or, Work as N=4, K=5, H=1, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or subcarrier During with a width of 3.75kHz, Gap time domain length is 0.6ms；And/or, work as N=4, K=5, H=2, CPnTime domain length be 266.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.2ms or 1.2ms；And/or, work as N=4, K=5, H=4, CPnTime domain length be 266.7us, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.4ms；And/or, work as N=4, K=5, H= 8, CPnTime domain length be 266.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.8ms；And/or, work as N=4, K=5, H=16, CPnTime domain length be 266.7us, send random When accessing the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of signal, Gap time domain length is 0.6ms；And/or, work as N= 4, K=5, H=1, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or sub-carrier bin it is a width of During 3.75kHz, Gap time domain length is 0.4ms；And/or, work as N=4, K=5, H=2, CPnTime domain length be 66.7us, When sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.8ms；With/ Or, work as N=4, K=5, H=4, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.6ms；And/or, work as N=4, K=5, H=8, CPnTime domain length be 66.7us, when sending the subcarrier spacing or a width of 3.75kHz of sub-carrier bin of accidental access signal, Gap time domain length is 0.2ms or 1.2ms；And/or, work as N=4, K=5, H=16, CPnTime domain length be 66.7us, send accidental access signal Subcarrier spacing or during a width of 3.75kHz of sub-carrier bin, Gap time domain length is 0.4ms.
In an optional embodiment, above-mentioned H value is determined according at least to the grade of terminal, i.e. different grades of The corresponding H of terminal can be different.
In an optional embodiment, the grade of above-mentioned terminal can include at least one of：Coverage enhancement grade； Physical channel repeats to send grade；The repetition of the message or signaling that are carried on physical channel sends grade.
In an optional embodiment, above-mentioned sending module 386 can send accidental access signal in the following way To base station：It is determined that the RACH for sending above-mentioned accidental access signal；Sent by RACH to base station Accidental access signal.In the present embodiment, terminal be used for carry out accidental access signal transmission RACH can be with A part in machine access channel resource, the random access channel resource can be carried out at random including multiple for different terminals Access the RACH that signal is sent.
In an optional embodiment, above-mentioned random access channel resource includes one or more running time-frequency resource set Setm, wherein, the SetmInclude F subcarrier or subchannel on frequency domain, length is at least P Unit length in time domain, M is SetmIn the index of time domain, F is positive integer, and P is positive integer.In the present embodiment, above-mentioned random access channel resource can To send the RACH of accidental access signal, also, an above-mentioned Set including multiple terminalsmCan be by an end End is used, and can also be used by multiple terminals, or multiple SetmUsed by a terminal.
In an optional embodiment, above-mentioned SetmIncluding P subset subset, wherein, the subset is on frequency domain With SetmConfigure identical subcarrier, the length that subset length in time domain is 1 Unit.
In an optional embodiment, in above-mentioned SetmThe front and rear of the frequency resource of occupancy is respectively configured with protection bandwidth, And/or, in SetmThe frequency resource of occupancy is respectively configured with protection bandwidth up and down.Below to SetmThe frequency resource configuration of occupancy Protection bandwidth illustrate：
Group carrier wave is at intervals of 3.75kHz, during F=12, in SetmIt is each in the front and rear frequency resource of the frequency resource of occupancy It is configured with 7.5kHz protection bandwidth；And/or, group carrier wave is at intervals of 3.75kHz, during F=16, in SetmThe frequency resource of occupancy Middle lower sideband is respectively reserved with 7.5kHz protection bandwidth.
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, and during F=12, upstream bandwidth is most Configure 4 Setm, and each SetmInclude F=12 subcarrier or subchannel, different Set on frequency domainmInclude on frequency domain Subcarrier or subchannel be not overlapping.
It is alternatively possible to the Set that the terminal or terminal group that are designated as same grade by U bit information are matched somebody with somebodym's Frequency domain position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U=2 or 4.
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, and during F=16, upstream bandwidth is most Configure 3 Setm, and each SetmInclude F=16 subcarrier or subchannel, different Set on frequency domainmInclude on frequency domain Subcarrier or subchannel be not overlapping.
It is alternatively possible to the Set that the terminal or terminal group that are designated as same grade by U bit information are matched somebody with somebodym's Frequency domain position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U=2 or 3.
In an optional embodiment, the above method can include at least one following：Work as N=4, it is described during K=5 SetmLength is 7ms, the CP in time domainnTime domain length be 266.7us, P=1；Work as N=4, during K=5, the Setm Length is 13ms, the CP in time domainnTime domain length be 266.7us, P=2；Work as N=8, during K=5, the SetmIn time domain Upper length is 13ms, the CPnTime domain length be 266.7us, P=1；Work as N=4, during K=5, the SetmIt is long in time domain Spend for 26ms, the CPnTime domain length be 266.7us, P=4；Work as N=8, during K=5, the SetmLength is in time domain 26ms, the CPnTime domain length be 266.7us, P=2；Work as N=4, during K=5, the SetmLength is 32ms in time domain, The CPnTime domain length be 266.7us, P=5；Work as N=4, during K=5, the SetmLength is 64ms in time domain, described CPnTime domain length be 266.7us, P=10；Work as N=8, during K=5, the SetmLength is 64ms, the CP in time domainn Time domain length be 266.7us, P=5；Work as N=4, during K=5, the SetmLength is 6ms, the CP in time domainnTime domain Length is 66.7us, P=1；Work as N=4, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=2；Work as N=8, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=1；Work as N=4, during K=5, the SetmLength is 17ms, the CP in time domainnTime domain length be 66.7us, P=3；Work as N=4, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=4；Work as N=8, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=2；Work as N=4, during K=5, the SetmLength is 28ms, the CP in time domainnTime domain length be 66.7us, P=5；Work as N=4, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=6；Work as N=8, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=3.
Wherein, in the above-described embodiments, N=4 is worked as, during K=5, SetmIt is above-mentioned to connect at random when length is 7ms in time domain Entering channel resource includes 0.6ms guard time；Work as N=4, during K=5, SetmIt is above-mentioned random when length is 26ms in time domain Access channel resource includes 0.4ms guard time；Work as N=8, during K=5, SetmIn time domain length be 26ms when, it is above-mentioned with Machine access channel resource includes 0.4ms guard time；Work as N=4, during K=5, SetmIt is above-mentioned when length is 6ms in time domain Random access channel resource includes 0.4ms guard time；Work as N=4, during K=5, SetmWhen length is 12ms in time domain, on Stating random access channel resource includes 0.8ms guard time；Work as N=8, during K=5, SetmWhen length is 12ms in time domain, Above-mentioned random access channel resource includes 0.8ms guard time；Work as N=4, during K=5, SetmLength is 17ms in time domain When, above-mentioned random access channel resource includes 0.2ms guard time；Work as N=4, during K=5, SetmLength is in time domain During 23ms, above-mentioned random access channel resource includes 0.6ms guard time；Work as N=8, during K=5, SetmThe length in time domain During for 23ms, above-mentioned random access channel resource includes 0.6ms guard time；Work as N=4, during K=5, SetmIt is long in time domain When spending for 34ms, above-mentioned random access channel resource includes 0.4ms guard time；Work as N=8, during K=5, SetmIn time domain When length is 34ms, above-mentioned random access channel resource includes 0.4ms guard time.
In an optional embodiment, two adjacent Set of time domainmBetween be spaced V very first time unit, wherein, V For integer, the very first time unit includes at least one of：The time domain length of one or more frames, one or more subframes Time domain length, Z1Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit time domain length, Z5Individual subset time domain is long Degree, wherein, Z1、Z2、Z3、Z4、Z5It is positive integer.
In the above-described embodiments, it can include at least one following：V value includes at least one of：V=0；V= 2y, wherein, y is the integer more than or equal to 0；V very first time unit be continuously distributed in time domain or discrete distribution；Time domain phase Two adjacent SetmF subcarrier or subchannel described in identical are taken on frequency domain.
In an optional embodiment, SetmConfiguration cycle be L very first time unit, wherein, L is positive integer, The very first time unit includes at least one of：The time domain of the time domain length of one or more frames, one or more subframes Length, Z1Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit time domain length, Z5Individual subset time domain length, its In, Z1、Z2、Z3、Z4、Z5It is positive integer.
In an optional embodiment, L=2z, wherein, z is the integer more than or equal to 0.
In the above-described embodiments, 2zIndividual very first time unit is continuously distributed in time domain or discrete distribution；Z values for 0, 1,2,3,4,5,6,7 }；Two adjacent Set of time domainmF subcarrier or subchannel described in identical are taken on frequency domain.
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration L1Individual subset, the subset Index be subset 0 to subset (L1- 1), wherein, hierarchy index be g the corresponding subset allocation plans bag of terminal Include：Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, in a SetmConfiguration cycle It is interior, it is that the terminal that hierarchy index is g configures continuous RepetitiongIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：Its In, 0≤g≤G-1, G is the quantity of the grade of the terminal divided.
In an optional embodiment, different SetmConfiguration cycle between, hierarchy index for g terminal it is corresponding Subset allocation plans are identicals.
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration L1Individual subset, subset's Index as subset 0 to subset (L1- 1), wherein, hierarchy index includes for g corresponding subset allocation plans of terminal： Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, and be that the terminal that hierarchy index is g is matched somebody with somebody Put continuous ChanceNumg×RepetitiongIndividual subset, wherein ChanceNumg≥1。
In an optional embodiment, in a SetmConfiguration cycle in, ChanceNumg×RepetitiongIt is individual Subset indexes StartingSubsetIndex is originated in subsetgIt can be calculated according to formula below：Wherein, 0≤g≤G-1, G are the terminal divided Grade quantity.Alternatively, above-mentioned G can be base station configuration terminal grade quantity or in SetmResource The quantity of the grade of the upper terminal for sending accidental access signal.
In an optional embodiment, starting subset indexes are StartingSubsetIndexgChanceNumg ×RepetitiongIn individual subset, ChanceNum is configured withgIndividual first sends resource, wherein, the first transmission resource is used for Unit repeats Repetition in time domaingIt is secondary to send, i.e. Unit repeats Repetition in time domaingSecondary transmission can be Performed in one resource.
In an optional embodiment, above-mentioned ChanceNumgIndividual first c-th first sent in resource send money The starting subset indexes in sourceIt can be calculated according to formula below：
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration L1Individual subset, the subset Index be subset 0 to subset (L1- 1), wherein, hierarchy index be g the corresponding subset allocation plans bag of terminal Include：Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, and hierarchy index matches somebody with somebody for g terminal It is equipped with ChanceNumg×RepetitiongIndividual subset, ChanceNumg≥1。
In an optional embodiment, in a SetmConfiguration cycle in, ChanceNumg×RepetitiongIt is individual Subset index is subset 0 to subset (ChanceNumg×Repetitiong- 1), and since subset 0, rope Draw continuous RepetitiongIndividual subset be one first transmission resource, wherein, this first send resource be used for Unit when Repetition is repeated on domaingIt is secondary to send, the Repetition in one first transmission resourcegIndividual subset is continuous in time domain Distribution, the different corresponding subset discrete distributions in time domain of the first transmission resource.
In an optional embodiment, in above-mentioned SetmConfiguration cycle in the terminal corresponding the including G grade One sends resource, wherein, hierarchy index sends resource for g terminal corresponding first and repeated for Unit in time domain RepetitiongSecondary to send, it is N that the terminal corresponding described first that hierarchy index is g, which sends resource size,gIt is individual For The corresponding Set of terminal that level index is gm, 0≤g≤G-1.
In an optional embodiment, in above-mentioned SetmConfiguration cycle in, terminal is ascending according to hierarchy index g Order be sequentially allocated NgIt is individualResource.
In an optional embodiment, Ng>=1 or Ng>=0, and work as NgWhen=0, represent in SetmConfiguration cycle in do not have There is configuration level index to send resource for g terminal corresponding first.
In an optional embodiment, in SetmConfiguration cycle in, be hierarchy index be g terminal configuration NgIt is individualAdjacent two in resourceBetween time domain interval be LgIndividual second chronomere, wherein, Lg≥0。
In an optional embodiment, the corresponding L of terminal of different brackets indexgIt is identical.
In an optional embodiment, in above-mentioned SetmConfiguration cycle in, different brackets index the corresponding N of terminalg It is individualBetween resource, L is spacedβIndividual second chronomere, wherein, Lβ≥0.Wherein, the corresponding N of terminal of different brackets indexg It is individualL is spaced between resourceβIndividual second chronomere refers to that the terminal of a grade is correspondingResource and another grade Terminal it is correspondingL is spaced between resourceβIndividual second chronomere.
In an optional embodiment, in SetmConfiguration cycle in, different brackets index the corresponding N of terminalgIt is individualBetween resource, L is spacedgIndividual second chronomere.
In an optional embodiment, above-mentioned very first time unit and the second chronomere can with it is identical can not also Together.
In an optional embodiment, hierarchy index is the g corresponding N of terminalgIt is individualFirst in resource's Time domain starting resource position with it is describedConfiguration cycle in time domain starting resource position it is identical；Or, hierarchy index is g's The corresponding N of terminalgIt is individualFirst in resourceTime domain starting resource position with it is describedConfiguration cycle in time domain There is offset in starting resource position, wherein, the offset is predetermined or is what base station was configured.
In an optional embodiment, the terminal of different brackets index is correspondingIt is identical.
In an optional embodiment, above-mentioned SetmConfiguration cycle length be D SetmTime domain length, wherein, D For positive integer.
In an optional embodiment, D=2x, x is the integer more than or equal to 0.
In an optional embodiment, in above-mentioned SetmConfiguration cycle at most configuration D*P subset, subset Index be subset 0 to subset (D*P-1), wherein, hierarchy index be g the corresponding subset allocation plans bag of terminal Include：Unit is repeated Repetition by hierarchy index for g terminal in time domaingIt is secondary to send, in a SetmConfiguration cycle It is interior, it is that the terminal that hierarchy index is g configures continuous RepetitiongIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：
Wherein, 0≤g≤G-1, G are the quantity of the grade of the terminal divided.
In an optional embodiment, different SetmConfiguration cycle between, hierarchy index for g terminal it is corresponding Subset allocation plans are identicals.
In an optional embodiment, when upstream bandwidth include 48 sub- carrier waves at intervals of 3.75kHz subcarrier when, The sub-carrier indices are 0~47, wherein, index as 0,1,14,15,16,17,30,31,32,33,46,47 subcarrier is unworthy of Put to Setm。
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F= 24, and the SetmStarting sub-carrier indices be 2 when, index for 2~25 sub-carrier configuration give the Setm.Wherein, "~" The meaning of " extremely " is meant, for example, the subcarrier that index is 2~25 is to index 24 subcarriers from 2 to 25, following realities It is similar to apply in example, is repeated no more.
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F= 36, and the SetmStarting sub-carrier indices be 2 when, index for 2~37 sub-carrier configuration give the Setm。
In an optional embodiment, when upstream bandwidth includes 48 subcarriers, the sub-carrier indices are 0~47, F= 24, and SetmStarting sub-carrier indices be 18 when, index for 18~41 sub-carrier configuration give the Setm。
In an optional embodiment, above-mentioned SetmIn F subcarrier in, RACH take subcarrier Ratios of the quantity Num in F subcarrier is Ratio, wherein, the Ratio is sent to the terminal by base station by signaling.
In an optional embodiment, above-mentioned F value is { 12,24,36,48 }.
In an optional embodiment, above-mentioned Ratio value is { 1/6,2/6,3/6,4/6,5/6,6/6 } or { 1/ 12,2/12,3/12,4/12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,1 2/12 } or { 0/12,1/12,2/ 12,3/12,4/12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,12/12 } or { 0/6,1/6,2/6,3/6,4/ 6,5/6,6/6}。
In an optional embodiment, above-mentioned SetmIn F subcarrier in, for send accidental access signal with The number of subcarriers of machine access channel occupancy is Num.
In an optional embodiment, above-mentioned F value is { 12,24,36,48 }.
In an optional embodiment, above-mentioned Num values are { 4,8,12,16,20,24,28,32,36,40,44,48 } { 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48 } or 0,4,8,12,16,20,24,28,32, 36,40,44,48 } or { 0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48 }.
In an optional embodiment, above-mentioned terminal sends the RACH of accidental access signal to base station The terminal is distributed to by signaling by the base station.In the present embodiment, signaling can include at least one of：For list The signaling that the signaling of individual terminal, the signaling for the single terminal in connection status, carrying are sent on a control channel.
In an optional embodiment, above-mentioned signaling includes at least one following information：The hierarchy index of starting；Base Distribute to the frequency domain position information where the above-mentioned RACH of terminal in station；Distribute to the above-mentioned Stochastic accessing of terminal in base station Time-domain position information where channel.
In an optional embodiment, the frequency domain position letter where the RACH of terminal is distributed in above-mentioned base station Breath includes：Constitute the unit Unit of accidental access signal Group0Subcarrier or sub-channel index where during transmission. Alternatively, Group is removed in Unit0Outside other several Group where frequency domain resource by Group0Frequency domain position indicate (for example, can be according to predefined rule, according to Group0Frequency domain determine).
In an optional embodiment, when upstream bandwidth includes 48 subcarriers or subchannel, indicated by 6bits Information indicates that the frequency domain position information where the RACH of the terminal is distributed in base station.In the present embodiment, It is 0 Subcarrior that such as " 000000 ", which represents index, and it is 47 Subcarrior that index " 101111 ", which represents index,.
In an optional embodiment, above-mentioned 6bits configured informations are additionally operable to instruction terminal in SetmIn F son carry A subcarrier is randomly choosed in ripple and is used as the frequency domain position where RACH.For example, " 110000 " can indicate institute Terminal is stated in SetmIn F subcarrier in random selection one subcarrier be used as the frequency domain position where RACH.
In an optional embodiment, work as SetmWhen including F subcarrier or subchannel, pass throughbits Configured information indicates that the frequency domain position information where the RACH of terminal is distributed in base station.In the present embodiment,It is The operation that rounds up is accorded with.
In an optional embodiment,Bits configured informations are additionally operable to instruction terminal in SetmIn F son A subcarrier is randomly choosed in carrier wave and is used as the frequency domain position where the RACH of terminal.In the present embodiment, It is the operation symbol that rounds up.
In an optional embodiment, as above-mentioned SetmWhen including F subcarrier or subchannel, pass throughBits configured informations indicate that the frequency domain where the RACH of the terminal is distributed in base station Positional information, wherein, Num is the number of subcarriers that RACH takes.
In an optional embodiment, the time domain position where the RACH of terminal is distributed in above-mentioned base station Confidence breath includes：2nd SetmConfiguration cycle configured information n；Wherein, the described random of the terminal is distributed in the base station The Set accessed where channelmIt is defined as the 2nd Setm；2nd SetmFor from the first SetmMiddle selection；And the 2nd Setm's Configuration cycle length is the first SetmN times of configuration cycle, n is positive integer；First SetmFor the RACH One or more running time-frequency resource set Set that resource includesm, n is positive integer.As n=1, illustrate the first SetmWith the 2nd Setm It is equal.
In an optional embodiment, including at least one of：When n value is described by 3bit, n value is { 1,2,3,4,5,6,7,8 } or { 1,2,4,8,16,32,64,128 } or { 1,2,4,8,10,12,14,16 }；When n value by When 2bit is described, n value is { 1,2,3,4 } or { 1,2,4,8 } or { Isosorbide-5-Nitrae, 6,8 }.
In an optional embodiment, the time-domain position where the RACH of terminal is distributed in above-mentioned base station For：2nd SetmConfiguration cycle in first the first Setm。
In an optional embodiment, the time-domain position letter where the RACH of terminal is distributed in above-mentioned base station Breath also includes：2nd SetmIn the 2nd SetmConfiguration cycle in positional information Offset；Wherein, the Offset is used to indicate 2nd SetmConfiguration cycle in n the first SetmIn, distribute to first where the RACH of the terminal SetmIndex information.
In an optional embodiment, the time domain position where the RACH of terminal is distributed in above-mentioned base station Confidence breath includes：Continuous two the 2nd SetmTime domain interval information Interval；Distribute to the described of the terminal in above-mentioned base station Set where RACHmIt is defined as the 2nd Setm；2nd SetmFor from the first SetmMiddle selection, and continuous two Individual 2nd SetmBetween interval Interval the first Setm；Shown first SetmThe random access channel resource includes One or more running time-frequency resource set Setm。
In an optional embodiment, also include in above-mentioned signaling：Trigger positioning action configured information.Such as " 0 " table Show and do not trigger positioning action；" 1 " represents triggering positioning action.
In an optional embodiment, when above-mentioned triggering positioning action configured information is triggering positioning action, the end Hold and send the accidental access signal on the RACH distributed in the signaling.In the present embodiment, terminal is sent Above-mentioned accidental access signal is used for using for the position positioning that base station carries out terminal.
In an optional embodiment, said apparatus also includes accidental access response receiving module, for terminal in hair After the accidental access signal is sent to the base station, base station is received after detection accidental access signal, is sent out according to testing result The accidental access response message sent；Wherein, the accidental access response message includes at least one of following information：Between subcarrier Every configured information；The number of subcarriers configured information of configuration.In the present embodiment, subcarrier spacing configured information can be used to refer to Show that subcarrier spacing is configured when Msg3 message is sent.
In an optional embodiment, the number of subcarriers configured information of above-mentioned subcarrier spacing configured information and configuration Indicated by combined coding mode.
It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module is located at many respectively In individual processor.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can The program code for performing following steps to be arranged to storage to be used for：
Sequence corresponding with terminal in S1, terminal selection arrangement set；
S2, above-mentioned terminal generates accidental access signal according at least to corresponding sequence；
S3, above-mentioned terminal sends the accidental access signal to base station.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (Read- Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard Disk, magnetic disc or CD etc. are various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor performs above-mentioned each step according to the program code stored in storage medium Suddenly.
Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment Example, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be shown to be performed different from order herein The step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (99)

1. a kind of access processing method, it is characterised in that including：
Sequence corresponding with the terminal in terminal selection arrangement set；
The terminal generates accidental access signal according at least to the corresponding sequence；
The terminal sends the accidental access signal to base station.
2. according to the method described in claim 1, it is characterised in that it is N's that the arrangement set, which includes J bar sequence lengths, Sequence, wherein, the expression-form for the sequence that index is j is0≤j≤J-1,0≤ N≤N-1, J are positive integer, and N is positive integer.
3. method according to claim 2, it is characterised in that the arrangement set includes R sequence subset and closed, the R Individual sequence subset closes and is allocated to different terminal set；Wherein, R is positive integer.
4. method according to claim 3, it is characterised in that should with the terminal-pair in the terminal selection arrangement set Sequence include：
The terminal determines that sequence subset corresponding with the terminal set belonging to itself is closed from R sequence subset conjunction；
The terminal selects a sequence to be used as the corresponding sequence in being closed from the sequence subset of determination.
5. method according to claim 4, it is characterised in that the terminal determined from R sequence subset conjunction with The corresponding sequence subset of terminal set belonging to itself, which is closed, to be included：
The terminal closes selection (Y+1) individual sequence subset cooperation from the R sequence subset Close corresponding sequence subset to close, wherein Y=Mod (Cell ID, R), Cell ID are the cell ID index that the terminal is accessed.
6. method according to claim 3, it is characterised in that the R sequence subset is closed is configured to R difference respectively Terminal set.
7. method according to claim 3, it is characterised in that including at least one of：
When the quantity of terminal set is 2,2 different termination sets are combined into first terminal set and second terminal set, described First terminal set and the second terminal set meet at least one following condition：The terminal that the first terminal set includes To support the terminal of multiple subcarrier simultaneous transmissions, and the terminal that the second terminal set includes is only to support single sub-carrier The terminal of transmission；The terminal that the first terminal set includes transmits the terminal of upstream data, and institute for the multiple subcarriers of use The terminal that stating second terminal set includes is the terminal that upstream data is transmitted using single sub-carrier；The first terminal set bag The terminal included is uses the terminal of multiple subcarrier simultaneous transmission Msg3 message, and the terminal that the second terminal set includes is The terminal of Msg3 message is transmitted using single sub-carrier；The terminal that the first terminal set includes is Msg3 message bearings many Individual subcarrier uploads defeated terminal, and the terminal that the second terminal set includes only is carried on single sub-carrier for Msg3 message The terminal of transmission；The terminal that the first terminal set includes is to support that single sub-carrier is transmitted and subcarrier spacing is fsc1's Terminal, the terminal that the second terminal set includes is to support that single sub-carrier is transmitted and subcarrier spacing is fsc2Terminal；Institute The terminal that stating first terminal set includes is to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc1Terminal； The terminal that the second terminal set includes is to use single sub-carrier to transmit upstream data and subcarrier spacing for fsc2End End；The terminal that the first terminal set includes is to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc1's Terminal, the terminal that the second terminal set includes is to use single sub-carrier to transmit Msg3 message and subcarrier spacing for fsc2 Terminal；The terminal that the first terminal set includes is that Msg3 message is only carried on single sub-carrier transmission and subcarrier spacing For fsc1Terminal, the terminal that the second terminal set includes be Msg3 message be only carried on single sub-carrier transmission and son carry Wave spacing is fsc2Terminal；The terminal that the first terminal set includes is that the information content carried in Msg3 message is Size1's Terminal, the terminal that the second terminal set includes is the terminal that the information content carried in Msg3 message is Size2, wherein, Size1 is not equal to Size2；
When the quantity of terminal set is 3,3 different termination sets are combined into first terminal set, second terminal set and the 3rd Terminal set, the first terminal set, the second terminal set and the third terminal set meet following condition at least One of：The terminal that the first terminal set includes is the terminal of the multiple subcarrier simultaneous transmissions of support, the second terminal collection The terminal included is closed for only support single sub-carrier is transmitted and subcarrier spacing is fsc1Terminal, the third terminal set bag The terminal included is only support single sub-carrier transmission and subcarrier spacing is fsc2Terminal；What the first terminal set included Terminal is the terminal that upstream data is transmitted using multiple subcarriers, and the terminal that the second terminal set includes is to use single son Carrier-wave transmission upstream data and subcarrier spacing are fsc1Terminal；The terminal that the third terminal set includes is using single Subcarrier transmits upstream data and subcarrier spacing is fsc2Terminal；The terminal that the first terminal set includes is using many The terminal of individual sub- carrier-wave transmission Msg3 message, the terminal that the second terminal set includes is to transmit Msg3 using single sub-carrier Message and subcarrier spacing are fsc1Terminal, the terminal that the third terminal set includes be using single sub-carrier transmission Msg3 message and subcarrier spacing are fsc2Terminal；The terminal that the first terminal set includes is Msg3 message bearings many Individual subcarrier uploads defeated terminal, and the terminal that the second terminal set includes is that Msg3 message is only carried on single sub-carrier biography Defeated and subcarrier spacing is fsc1Terminal, the terminal that the third terminal set includes be Msg3 message be only carried on single son Carrier-wave transmission and subcarrier spacing are fsc2Terminal；Terminal that the first terminal set includes is to carry in Msg3 message Information content is Size1 terminal, and the terminal that the second terminal set includes is that the information content carried in Msg3 message is Size2 Terminal, the terminal that the third terminal set includes is the terminal that the information content carried in Msg3 message is Size3, wherein, Size1, Size2, Size3 are not mutually equal；
When the quantity of terminal set is 4,4 different termination sets are combined into first terminal set, second terminal set, the 3rd eventually End set and the 4th terminal set, the first terminal set, the second terminal set, the third terminal set and described 4th terminal set meets at least one following condition：The terminal that the first terminal set includes is the multiple subcarriers of support Simultaneous transmission and subcarrier spacing are fsc1Terminal, the terminal that the second terminal set includes is supports multiple subcarriers same When transmission and subcarrier spacing be fsc2Terminal, the terminal that the third terminal set includes for only support single sub-carrier pass Defeated and subcarrier spacing is fsc3Terminal, the terminal that the 4th terminal set includes for only support single sub-carrier transmission and Subcarrier spacing is fsc4Terminal；The terminal that the first terminal set includes is to transmit upstream data using multiple subcarriers And subcarrier spacing is fsc1Terminal, the terminal that the second terminal set includes is using the upper line number of multiple subcarriers transmission According to and subcarrier spacing be fsc2Terminal, the terminal that the third terminal set includes be using single sub-carrier transmit it is up Data and subcarrier spacing are fsc3Terminal；The terminal that the 4th terminal set includes is using in single sub-carrier transmission Row data and subcarrier spacing are fsc4Terminal；The terminal that the first terminal set includes is using the transmission of multiple subcarriers Msg3 message and subcarrier spacing are fsc1Terminal, the terminal that the second terminal set includes be using multiple subcarriers pass Defeated Msg3 message and subcarrier spacing are fsc2Terminal, the terminal that the third terminal set includes is uses single sub-carrier Transmit Msg3 message and subcarrier spacing is fsc3Terminal, the terminal that the 4th terminal set includes be use single sub- load Ripple transmits Msg3 message and subcarrier spacing is fsc4Terminal；The terminal that the first terminal set includes is that Msg3 message is held It is loaded on multiple subcarriers transmission and subcarrier spacing is fsc1Terminal, the terminal that the second terminal set includes be Msg3 Message bearing is transmitted over the plurality of subcarriers and subcarrier spacing is fsc2Terminal, the terminal that the third terminal set includes Single sub-carrier transmission is only carried on for Msg3 message and subcarrier spacing is fsc3Terminal, the 4th terminal set includes Terminal be Msg3 message be only carried on single sub-carrier transmission and subcarrier spacing is fsc4Terminal；The first terminal collection It is the terminal that the information content carried in Msg3 message is Size1, the terminal that the second terminal set includes to close the terminal that includes The terminal for being Size2 for the information content carried in Msg3 message, the terminal that the third terminal set includes is in Msg3 message The information content of carrying is Size3 terminal, and the terminal that the 4th terminal set includes is the information content that carries in Msg3 message For Size4 terminal, wherein, Size1, Size2, Size3, Size4 are not mutually equal.
8. the method according to any one of claim 2 to 7, it is characterised in that the J bars sequence length is N sequence Row meet at least one of：
The sequence that the J bars sequence length is N is orthogonal code sequence；
The J bars sequence length is that N sequence is defined orthogonal code sequence；
The sequence that the J bars sequence length is N is predefined sequence.
9. the method according to any one of claim 2 to 7, it is characterised in that described Meet at least one of：
The corresponding Code of j of different valuesjInOrthogonal code, or quasiorthogonal code word each other each other；
The corresponding Code of j of different valuesjInOrthogonal code, or quasiorthogonal code word each other each other；
The corresponding Code of j of different valuesjInOrthogonal code, or quasiorthogonal code word each other each other, wherein, 0≤i ≤N/2-1。
10. method according to claim 8 or claim 9, it is characterised in that the value of the N is one below：2,4,6,8.
11. method according to claim 2, it is characterised in that work as J=1, and during N=4, J bars sequence length is N sequence Row include at least one of： Wherein, A isC is constant,
12. the method according to any one of claim 3 to 7, it is characterised in that including at least one of：
Work as J=1, and during N=4, J bars sequence length includes at least one of for N sequence：
When working as R=2, J=2, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, Code0With Code1In the terminal that is configured in first terminal set, another is configured to the terminal in second terminal set；
When working as R=2, J=2, and N=8, J bars sequence length includes at least one of for N sequence： Wherein, Code0And Code1In one be configured to Terminal in one terminal set, another is configured to the terminal in second terminal set；
When working as R=3, J=3, and N=4, J bars sequence length includes at least one of for N sequence： In any 3； In any 3； Wherein, 3 sequence lengths are individually configured to the terminal in 3 terminal set for N sequence；
When working as R=4, J=4, and N=4, J bars sequence length includes at least one of for N sequence： Wherein, 4 sequences Row length is individually configured to the terminal in 4 terminal set for N sequence；
Wherein, A isC is constant,
13. the method according to any one of claim 2 to 12, it is characterised in that when sequence corresponding with the terminal ForWhen, the terminal is according at least to the corresponding sequence generation Stochastic accessing letter Number include：
The terminal determines that index is f on frequency domainnSubcarrier and time domain on take continuous K symbol and sendK-th of symbol Number and subcarrier fnThe frequency-domain expression of the signal of upper transmission isThe K symbol and subcarrier fnIt is upper to send The frequency-domain expression of signal beWherein, 0≤k≤K-1；
The terminal is according at least to describedDetermine the accidental access signal.
14. method according to claim 13, it is characterised in that the terminal is according at least to describedDetermine that the accidental access signal includes：
The expression formula of corresponding time domain isWherein 0≤t≤Tk, TkFor k-th The length of time-domain symbol,It is f for indexnSubcarrier take frequency domain resource, FOffsetFor frequency offset amount；And/or,
It is T when the time domain sampling intervalsWhen,Corresponding time domainExpression formula beWherein, 0≤t≤Tk, Tk For the length of k-th of time-domain symbol, 0≤k≤K-1,0≤q≤Q-1,For time domain sampling point quantity；The terminal is even Sent on K continuous symbolTime-domain expression be
The terminal is according at least to describedDetermine the accidental access signal.
15. method according to claim 14, it is characterised in that the terminal is according at least to describedDetermine that the accidental access signal includes：
The terminal generates cyclic prefix CP according to the following formulan, CPn={ Sn[QK-L+1],…,Sn[QK] }, L represents CPnInclude Time-domain sampling interval TsQuantity；
Then the terminal is in subcarrier fnThe expression formula of the accidental access signal of upper transmission is Groupn={ CPn,Sn, the terminal In subcarrier f0,f1,…,fN-1The expression formula of the accidental access signal of upper transmission is { Group0,Group1,…GroupN-1}；
Wherein, the different Group of n valuesnDifferent time-domain symbols are taken in time domain.
16. method according to claim 15, it is characterised in that Group0~GroupN-1To constitute the Stochastic accessing letter Number unit Unit, the terminal sends the accidental access signal to be included to base station：
The terminal determines that a Unit is the accidental access signal, and the accidental access signal is repeated to enter for H times Row is sent；And/or,
The Unit is repeated H times in time domain and forms the accidental access signal by the terminal, and sends the Stochastic accessing Signal.
17. method according to claim 16, it is characterised in that
The terminal is in subcarrier fnOn be sent completely accidental access signal GroupnAfterwards, it is necessary to which it is Gap's to introduce time span Interval.
18. method according to claim 17, it is characterised in that including at least one of：
Work as N=4, K=5, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or sub-carrier bin During a width of 3.75kHz, the time domain length of the Gap is 0.4ms；
Work as N=4, K=5, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or subcarrier bandwidth During for 3.75kHz, the time domain length of the Gap is 0.6ms；
Work as N=4, K=5, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or sub-carrier bin During a width of 3.75kHz, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or sub-carrier bin During a width of 3.75kHz, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns.
19. method according to claim 16, it is characterised in that
H times of the Unit repeats to include Y Group, and the index for defining Y Group is Group0~GroupY-1, wherein, Y= H*N；When the terminal completes GroupstartTo GroupendAltogether after the transmission of y Group accidental access signal, it is necessary to Introduce the interval that time span is Gap；
Wherein, 0≤start≤end≤Y-1, y≤Y.
20. method according to claim 19, it is characterised in that
Start=offset+y × Ngap, wherein, NgapTo introduce the quantity at the interval that time span is Gap；Offset is first Individual GroupstartIndex amount of bias；Or,
Start=y × Ngap, wherein, NgapTo introduce the quantity at the interval that time span is Gap.
21. method according to claim 20, it is characterised in thatOrOr Ngap= Y/y。
22. the method according to any one of claim 19 to 21, it is characterised in that end=start+y-1.
23. method according to claim 19, it is characterised in that the Gap meets at least one following condition：
Y × L_G+Gap=T × TimeUnit, wherein, L_G is the time span of the Group, and Gap >=0, T is positive integer, TimeUnit is a kind of linear module of time span；
Y × L_G+Gap=T × TimeUnit, wherein L_G are the time span of the Group, and Gap >=0, T is positive integer and T To meet T × TimeUnit>Y × L_G minimum value, TimeUnit is a kind of linear module of time span.
24. method according to claim 16, it is characterised in that
The terminal is after Unit accidental access signal is sent completely, it is necessary to which it is Gap's to introduce time span Interval.
25. method according to claim 24, it is characterised in that including at least one of：
Work as N=4, K=5, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or sub-carrier bin During a width of 3.75kHz, the time domain length of the Gap is 0.6ms；
Work as N=4, K=5, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or subcarrier bandwidth During for 3.75kHz, the time domain length of the Gap is 0.4ms；
Work as N=4, K=5, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or sub-carrier bin During a width of 3.75kHz, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or sub-carrier bin During a width of 3.75kHz, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns.
26. method according to claim 16, it is characterised in that
The index for defining the H repetition of the Unit is Unit0~UnitH-1, when the terminal completes UnitstartTo Unitend , it is necessary to introduce the interval that time span is Gap after y Unit accidental access signal is sent altogether；
Wherein, 0≤start≤end≤Y-1, y≤Y.
27. method according to claim 26, it is characterised in that
Start=offset+y × Ngap, wherein, NgapTo introduce the quantity at the interval that time span is Gap；Offset is first Individual UnitstartIndex amount of bias；Or,
Start=y × Ngap, wherein, NgapTo introduce the quantity at the interval that time span is Gap.
28. method according to claim 27, it is characterised in thatOrOr Ngap= Y/y。
29. the method according to any one of claim 26 to 28, it is characterised in that end=start+y-1.
30. method according to claim 26, it is characterised in that the Gap meets at least one following condition：
Y × L_U+Gap=T × TimeUnit, wherein, L_G is the time span of the Unit, and gap >=0, T is positive integer, TimeUnit is a kind of linear module of time span；
Y × L_U+Gap=T × TimeUnit, wherein, L_G is the time span of the Unit, and Gap >=0, T is positive integer and T To meet T × TimeUnit>Y × L_U minimum value, TimeUnit is a kind of linear module of time span.
31. the method according to any one of claim 26 to 29, it is characterised in that including at least one of：
Work as N=4, K=5, H=1, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=2, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=4, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=8, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 24576*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=16, CPnTime domain length be 8192*Ts, send accidental access signal subcarrier spacing or son When carrier bandwidths are 3.75kHz, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=1, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=2, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 24576*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=4, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 18432*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=8, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 6144*Ts or 36864*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=16, CPnTime domain length be 2048*Ts, send accidental access signal subcarrier spacing or son When carrier bandwidths are 3.75kHz, Gap time domain length is 12288*Ts, wherein, Ts=32.55ns；
Work as N=4, K=5, H=1, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.6ms；
Work as N=4, K=5, H=2, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.2ms or 1.2ms；
Work as N=4, K=5, H=4, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.4ms；
Work as N=4, K=5, H=8, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.8ms；
Work as N=4, K=5, H=16, CPnTime domain length be 266.7us, send accidental access signal subcarrier spacing or son When carrier bandwidths are 3.75kHz, Gap time domain length is 0.6ms；
Work as N=4, K=5, H=1, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.4ms；
Work as N=4, K=5, H=2, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.8ms；
Work as N=4, K=5, H=4, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.6ms；
Work as N=4, K=5, H=8, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.2ms or 1.2ms；
Work as N=4, K=5, H=16, CPnTime domain length be 66.7us, send accidental access signal subcarrier spacing or son carry During a width of 3.75kHz of wavestrip, Gap time domain length is 0.4ms.
32. method according to claim 16, it is characterised in that grade of the value of the H according at least to the terminal It is determined that.
33. method according to claim 32, it is characterised in that the grade of the terminal includes at least one of：
Coverage enhancement grade；
Physical channel repeats to send grade；
The repetition of the message or signaling that are carried on physical channel sends grade.
34. method according to claim 16, it is characterised in that the terminal sends the accidental access signal to described Base station includes：
The terminal determines the RACH for sending the accidental access signal；
The terminal sends the accidental access signal by the RACH to the base station.
35. method according to claim 34, it is characterised in that random access channel resource includes one or more time-frequencies Resource collection Setm, wherein, the SetmInclude F subcarrier or subchannel on frequency domain, length is at least P in time domain Unit length, m is the SetmIn the index of time domain, F is positive integer, and P is positive integer.
36. method according to claim 35, it is characterised in that the SetmIncluding P subset subset, wherein, it is described Subset on frequency domain with the SetmConfigure identical subcarrier, the length that subset length in time domain is 1 Unit Degree.
37. method according to claim 35, it is characterised in that
Group carrier wave is at intervals of 3.75kHz, during F=12, in the SetmRespectively match somebody with somebody in the front and rear frequency resource of the frequency resource of occupancy It is equipped with 7.5kHz protection bandwidth；And/or,
Group carrier wave is at intervals of 3.75kHz, during F=16, in the SetmLower sideband is respectively reserved with the frequency resource of occupancy 7.5kHz protects bandwidth.
38. method according to claim 35, it is characterised in that when upstream bandwidth includes 48 subcarriers, and F=12 When, upstream bandwidth at most configures 4 Setm, and each SetmInclude F=12 subcarrier or subchannel on frequency domain, it is different SetmThe subcarrier or subchannel included on frequency domain be not overlapping.
39. the method according to claim 38, it is characterised in that same grade is designated as by U bit information The Set that terminal or terminal group are matched somebody with somebodymFrequency domain position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U =2 or 4.
40. method according to claim 35, it is characterised in that when upstream bandwidth includes 48 subcarriers, and F=16 When, upstream bandwidth at most configures 3 Setm, and each SetmInclude F=16 subcarrier or subchannel on frequency domain, it is different SetmThe subcarrier or subchannel included on frequency domain be not overlapping.
41. method according to claim 40, it is characterised in that same grade is designated as by U bit information The Set that terminal or terminal group are matched somebody with somebodymFrequency domain position, wherein, the Set of different grades of terminal configurationmFrequency domain position it is identical, U =2 or 3.
42. method according to claim 35, it is characterised in that including at least one of：
Work as N=4, during K=5, the SetmLength is 7ms, the CP in time domainnTime domain length be 266.7us, P=1；
Work as N=4, during K=5, the SetmLength is 13ms, the CP in time domainnTime domain length be 266.7us, P=2；
Work as N=8, during K=5, the SetmLength is 13ms, the CP in time domainnTime domain length be 266.7us, P=1；
Work as N=4, during K=5, the SetmLength is 26ms, the CP in time domainnTime domain length be 266.7us, P=4；
Work as N=8, during K=5, the SetmLength is 26ms, the CP in time domainnTime domain length be 266.7us, P=2；
Work as N=4, during K=5, the SetmLength is 32ms, the CP in time domainnTime domain length be 266.7us, P=5；
Work as N=4, during K=5, the SetmLength is 64ms, the CP in time domainnTime domain length be 266.7us, P=10；
Work as N=8, during K=5, the SetmLength is 64ms, the CP in time domainnTime domain length be 266.7us, P=5；
Work as N=4, during K=5, the SetmLength is 6ms, the CP in time domainnTime domain length be 66.7us, P=1；
Work as N=4, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=2；
Work as N=8, during K=5, the SetmLength is 12ms, the CP in time domainnTime domain length be 66.7us, P=1；
Work as N=4, during K=5, the SetmLength is 17ms, the CP in time domainnTime domain length be 66.7us, P=3；
Work as N=4, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=4；
Work as N=8, during K=5, the SetmLength is 23ms, the CP in time domainnTime domain length be 66.7us, P=2；
Work as N=4, during K=5, the SetmLength is 28ms, the CP in time domainnTime domain length be 66.7us, P=5；
Work as N=4, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=6；
Work as N=8, during K=5, the SetmLength is 34ms, the CP in time domainnTime domain length be 66.7us, P=3.
43. method according to claim 42, it is characterised in that including at least one of：
Work as N=4, during K=5, the SetmWhen length is 7ms in time domain, the random access channel resource includes 0.6ms's Guard time；
Work as N=4, during K=5, the SetmWhen length is 26ms in time domain, the random access channel resource includes 0.4ms's Guard time；
Work as N=8, during K=5, the SetmWhen length is 26ms in time domain, the random access channel resource includes 0.4ms's Guard time；
Work as N=4, during K=5, the SetmWhen length is 6ms in time domain, the random access channel resource includes 0.4ms's Guard time；
Work as N=4, during K=5, the SetmWhen length is 12ms in time domain, the random access channel resource includes 0.8ms's Guard time；
Work as N=8, during K=5, the SetmWhen length is 12ms in time domain, the random access channel resource includes 0.8ms's Guard time；
Work as N=4, during K=5, the SetmWhen length is 17ms in time domain, the random access channel resource includes 0.2ms's Guard time；
Work as N=4, during K=5, the SetmWhen length is 23ms in time domain, the random access channel resource includes 0.6ms's Guard time；
Work as N=8, during K=5, the SetmWhen length is 23ms in time domain, the random access channel resource includes 0.6ms Guard time；
Work as N=4, during K=5, the SetmWhen length is 34ms in time domain, the random access channel resource includes 0.4ms's Guard time；
Work as N=8, during K=5, the SetmWhen length is 34ms in time domain, the random access channel resource includes 0.4ms's Guard time.
44. according to claim 35, the method any one of 38 to 41, it is characterised in that two adjacent Set of time domainmIt Between be spaced V very first time unit, wherein, V is integer, the very first time unit include at least one of：One or many The time domain length of individual frame, the time domain length of one or more subframes, Z1Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit Time domain length, wherein, Z1、Z2、Z3、Z4It is positive integer.
45. method according to claim 36, it is characterised in that two adjacent Set of time domainmBetween interval V first when Between unit, wherein, V is integer, the very first time unit include Z5Individual subset time domain length, wherein, Z5For positive integer.
46. the method according to claim 44 or 45, it is characterised in that including at least one of：
V value includes at least one of：V=0；V=2y, wherein, y is the integer more than or equal to 0；
The V very first time unit is continuously distributed in time domain or discrete distribution；
Two adjacent Set of the time domainmF subcarrier or subchannel described in identical are taken on frequency domain.
47. according to claim 35, the method any one of 38 to 41, it is characterised in that SetmConfiguration cycle be L Very first time unit, wherein, L is positive integer, and the very first time unit includes at least one of：One or more frames when Length of field, the time domain length of one or more subframes, Z1Second, Z2Millisecond, Z3Individual SetmTime domain length, Z4Individual Unit time domain is long Degree, wherein, Z1、Z2、Z3、Z4It is positive integer.
48. method according to claim 36, it is characterised in that SetmConfiguration cycle be L very first time unit, its In, L is positive integer, and the very first time unit includes Z5Individual subset time domain length, Z5For positive integer.
49. the method according to claim 47 or 48, it is characterised in that L=2z, wherein, z is whole more than or equal to 0 Number.
50. method according to claim 49, it is characterised in that including at least one of：
Described 2zIndividual very first time unit is continuously distributed in time domain or discrete distribution；
Z values are { 0,1,2,3,4,5,6,7 }；
Two adjacent Set of time domainmF subcarrier or subchannel described in identical are taken on frequency domain.
51. the method according to any one of claim 36,47,48,49,50, it is characterised in that in the SetmMatch somebody with somebody Put at most configuration L in the cycle1The individual subset, the subset index are subset 0 to subset (L1- 1), wherein, Hierarchy index includes for the g corresponding subset allocation plans of terminal：The terminal that hierarchy index is g is by the Unit in time domain Repeat RepetitiongIt is secondary to send, in a SetmConfiguration cycle in, be that the terminal configuration that hierarchy index is g is continuous RepetitiongIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：
Wherein, 0≤g≤G-1, G are the quantity of the grade of the terminal divided.
52. method according to claim 51, it is characterised in that the different SetmConfiguration cycle between, grade rope The corresponding subset allocation plans of terminal for being cited as g are identicals.
53. the method according to any one of claim 36,47,48,49,50, it is characterised in that in the SetmMatch somebody with somebody Put at most configuration L in the cycle1The individual subset, the subset index are subset 0 to subset (L1- 1), wherein, Hierarchy index includes for the g corresponding subset allocation plans of terminal：The terminal that hierarchy index is g is by the Unit in time domain Repeat RepetitiongIt is secondary to send, and be that the terminal that the hierarchy index is g configures continuous ChanceNumg× RepetitiongIndividual subset, wherein ChanceNumg≥1。
54. method according to claim 53, it is characterised in that in a SetmConfiguration cycle in, it is described ChanceNumg×RepetitiongSubset indexes StartingSubsetIndex is originated in individual subsetgAccording to following public affairs Formula is calculated：
Wherein, 0≤g≤G-1, G are the quantity of the grade of the terminal divided.
55. method according to claim 54, it is characterised in that originating subset indexes is StartingSubsetIndexgChanceNumg×RepetitiongIn individual subset, ChanceNum is configured withgIndividual first Resource is sent, wherein, described first sends resource repeats Repetition for the Unit in time domaingIt is secondary to send.
56. method according to claim 55, it is characterised in that the ChanceNumgIndividual first sends the c in resource Individual first sends the starting subset indexes of resourceCalculated according to formula below：
57. the method according to any one of claim 36,47,48,49,50, it is characterised in that in the SetmMatch somebody with somebody Put at most configuration L in the cycle1The individual subset, the subset index are subset 0 to subset (L1- 1), wherein, Hierarchy index includes for the g corresponding subset allocation plans of terminal：The terminal that hierarchy index is g is by the Unit in time domain Repeat RepetitiongIt is secondary to send, and the hierarchy index is configured with ChanceNum for g terminalg×RepetitiongIt is individual Subset, ChanceNumg≥1。
58. method according to claim 57, it is characterised in that in a SetmConfiguration cycle in, it is described ChanceNumg×RepetitiongIndividual subset index is subset 0 to subset (ChanceNumg× Repetitiong- 1), and since subset 0, continuous Repetition is indexedgIndividual subset is one first and sends money Source, wherein, described first sends resource repeats Repetition for the Unit in time domaingIt is secondary to send, one described the One sends the Repetition in resourcegIndividual subset is continuously distributed in time domain, different the first transmission resource correspondences Subset discrete distributions in time domain.
59. the method according to any one of claim 36,47,48,49,50, it is characterised in that in the SetmMatch somebody with somebody Put the terminal corresponding first in the cycle including G grade and send resource, wherein, hierarchy index is corresponding described for g terminal First sends resource repeats Repetition for the Unit in time domaingSecondary to send, hierarchy index is corresponding for g terminal Described first sends resource size for NgIt is individual The corresponding Set of terminal for being g is indexed for levelm, 0≤g≤G-1.
60. method according to claim 59, it is characterised in that in the SetmConfiguration cycle in, terminal is according to grade Order ascending index g has been sequentially allocated NgIt is individualResource.
61. method according to claim 59, it is characterised in that Ng>=1 or Ng>=0, and work as NgWhen=0, represent in institute State SetmConfiguration cycle in be configured without hierarchy index be g terminal it is corresponding it is described first send resource.
62. method according to claim 59, it is characterised in that in the SetmConfiguration cycle in, be that hierarchy index is The N of g terminal configurationgIt is individualAdjacent two in resourceBetween time domain interval be LgIndividual second chronomere, wherein, Lg ≥0。
63. method according to claim 62, it is characterised in that the corresponding L of terminal of different brackets indexgIt is identical.
64. method according to claim 59, it is characterised in that in the SetmConfiguration cycle in, different brackets index The corresponding N of terminalgIt is individualBetween resource, L is spacedβIndividual second chronomere, wherein, Lβ≥0。
65. the method according to claim 62 or 63, it is characterised in that in the SetmConfiguration cycle in, different brackets The corresponding N of terminal of indexgIt is individualBetween resource, L is spacedgIndividual second chronomere.
66. method according to claim 59, it is characterised in that
Hierarchy index is the g corresponding N of terminalgIt is individualFirst in resourceTime domain starting resource position with it is describedConfiguration cycle in time domain starting resource position it is identical；Or,
Hierarchy index is the g corresponding N of terminalgIt is individualFirst in resourceTime domain starting resource position with it is describedConfiguration cycle in time domain starting resource position there is offset, wherein, the offset is predetermined or is base station Configuration.
67. method according to claim 59, it is characterised in that the terminal of different brackets index is correspondingIt is identical.
68. method according to claim 36, it is characterised in that the SetmConfiguration cycle length be D SetmWhen Length of field, wherein D are positive integer.
69. method according to claim 68, it is characterised in that D=2x, x is the integer more than or equal to 0.
70. the method according to claim 68 or 69, it is characterised in that in the SetmConfiguration cycle at most configure The D*P subset, the subset index are subset 0 to subset (D*P-1), wherein, hierarchy index is g's The corresponding subset allocation plans of terminal include：Hierarchy index repeats the Unit for g terminal in time domain RepetitiongIt is secondary to send, in a SetmConfiguration cycle in, be that the terminal configuration that hierarchy index is g is continuous RepetitiongIndividual subset, and starting subset indexes StartingSubsetIndexgCalculated according to formula below：
Wherein, 0≤g≤G-1, G are the quantity of the grade of the terminal divided.
71. method according to claim 70, it is characterised in that the different SetmConfiguration cycle between, grade rope The corresponding subset allocation plans of terminal for being cited as g are identicals.
72. method according to claim 35, it is characterised in that when upstream bandwidth include 48 sub- carrier waves at intervals of During 3.75kHz subcarrier, the sub-carrier indices are 0~47, wherein, index as 0,1,14,15,16,17,30,31,32, 33,46,47 subcarrier is not allocated to the Setm。
73. method according to claim 35, it is characterised in that when upstream bandwidth includes 48 subcarriers, the sub- load Ripple index is 0~47, F=24, and the SetmStarting sub-carrier indices be 2 when, index for 2~25 sub-carrier configuration to The Setm。
74. method according to claim 35, it is characterised in that when upstream bandwidth includes 48 subcarriers, the sub- load Ripple index is 0~47, F=36, and the SetmStarting sub-carrier indices be 2 when, index for 2~37 sub-carrier configuration to The Setm。
75. method according to claim 35, it is characterised in that when upstream bandwidth includes 48 subcarriers, the sub- load Ripple index is 0~47, F=24, and the SetmStarting sub-carrier indices be 18 when, index the sub-carrier configuration for 18~41 To the Setm。
76. the method according to any one of claim 72 to 75, it is characterised in that the SetmIn it is described F son carry In ripple, ratios of the number of subcarriers Num that RACH takes in the F subcarrier is Ratio, wherein, it is described Ratio is sent to the terminal by the base station by signaling.
77. the method according to claim 76, it is characterised in that the value of the F is { 12,24,36,48 }.
78. the method according to claim 75 or 76, it is characterised in that the value of the Ratio for 1/6,2/6,3/6, 4/6,5/6,6/6 } or { 1/12,2/12,3/12,4/12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,12/ 12 } or { 0/12,1/12,2/12,3/12,4/12,5/12,6/12,7/12,8/12,9/12,10/12,11/12,12/12 } or {0/6,1/6,2/6,3/6,4/6,5/6,6/6}。
79. the method according to any one of claim 35,72 to 75, it is characterised in that the SetmIn the F It is Num for sending the number of subcarriers that the RACH of accidental access signal takes in subcarrier.
80. the method according to claim 79, it is characterised in that the value of the F is { 12,24,36,48 }.
81. the method according to claim 79 or 80, it is characterised in that the Num values for 4,8,12,16,20,24, 28,32,36,40,44,48 } or { 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48 } or 0,4,8, 12,16,20,24,28,32,36,40,44,48 } or 0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45, 48}。
82. method according to claim 35, it is characterised in that the terminal sends the Stochastic accessing to the base station The RACH of signal distributes to the terminal by the base station by signaling.
83. the method according to claim 82, it is characterised in that the signaling includes at least one following information：
The hierarchy index of starting；
Distribute to the frequency domain position information where the RACH of the terminal in the base station；
Distribute to the time-domain position information where the RACH of the terminal in the base station.
84. the method according to claim 83, it is characterised in that distribute to the described of the terminal and connect at random in the base station Frequency domain position information where entering channel includes：
Constitute the unit Unit of accidental access signal Group0Subcarrier or sub-channel index where during transmission.
85. the method according to claim 83 or 84, it is characterised in that when upstream bandwidth includes 48 subcarriers or son letter During road, the frequency domain position where the RACH of the terminal is distributed to by 6bits configured informations instruction base station Information.
86. the method according to claim 85, it is characterised in that the 6bits configured informations are additionally operable to indicate the end End is in the SetmIn F subcarrier in random selection one subcarrier be used as where the RACH frequency domain position Put.
87. the method according to claim 83 or 84, it is characterised in that as the SetmInclude F subcarrier or son letter During road, pass throughConfigured information indicates that the frequency domain where the RACH of the terminal is distributed in base station Positional information.
88. the method according to claim 87, it is characterised in that describedConfigured information is additionally operable to indicate institute Terminal is stated in the SetmIn F subcarrier in random selection one subcarrier as the terminal the Stochastic accessing believe Frequency domain position where road.
89. the method according to claim 83 or 84, it is characterised in that as the SetmInclude F subcarrier or son letter During road, pass throughConfigured information indicates that the RACH institute of the terminal is distributed in base station Frequency domain position information, wherein, the Num be the RACH take number of subcarriers.
90. the method according to claim 83, it is characterised in that distribute to the described of the terminal and connect at random in the base station Time-domain position information where entering channel includes：
2nd SetmConfiguration cycle configured information n；
Wherein, the Set where the RACH of the terminal is distributed in the base stationmIt is defined as the 2nd Setm；It is described 2nd SetmFor from the first SetmMiddle selection；And the 2nd SetmConfiguration cycle length be the first SetmConfiguration cycle n Times, n is positive integer；First SetmThe one or more running time-frequency resource set included for the random access channel resource Setm, n is positive integer.
91. the method according to claim 90, it is characterised in that including at least one of：
When n value is described by 3bit, n value is { 1,2,3,4,5,6,7,8 } or { 1,2,4,8,16,32,64,128 } Or { 1,2,4,8,10,12,14,16 }；
When n value is described by 2bit, n value is { 1,2,3,4 } or { 1,2,4,8 } or { Isosorbide-5-Nitrae, 6,8 }.
92. the method according to claim 90 or 91, it is characterised in that the base station distribute to the terminal it is described with Machine access channel where time-domain position be：2nd SetmConfiguration cycle in first the first Setm。
93. the method according to claim 90 or 91, it is characterised in that the base station distribute to the terminal it is described with Time-domain position information where machine access channel also includes：
2nd SetmIn the 2nd SetmConfiguration cycle in positional information Offset；
Wherein, the Offset is used to indicate the 2nd SetmConfiguration cycle in n the first SetmIn, distribute to described The first Set where the RACH of terminalmIndex information.
94. the method according to claim 83, it is characterised in that distribute to the described of the terminal and connect at random in the base station Time-domain position information where entering channel includes：
Continuous two the 2nd SetmTime domain interval information Interval；
Distribute to the Set where the RACH of the terminal in the base stationmIt is defined as the 2nd Setm；Described second SetmFor from the first SetmMiddle selection, and continuous two the 2nd SetmBetween interval Interval the first Setm；Shown first SetmThe one or more running time-frequency resource set Set included for the random access channel resourcem。
95. the method according to any one of claim 82 to 94, it is characterised in that also include in the signaling：Triggering Positioning action configured information.
96. the method according to claim 95, it is characterised in that the triggering positioning action configured information positions for triggering During operation, the terminal sends the accidental access signal on the RACH that the signaling is distributed.
97. according to the method described in claim 1, it is characterised in that the terminal is sending the accidental access signal to institute State after base station, methods described also includes：
The terminal receives the base station and detected after the accidental access signal, the accidental access response sent according to testing result Message；Wherein, the accidental access response message includes at least one of following information：
Subcarrier spacing configured information；
The number of subcarriers configured information of configuration.
98. the method according to claim 97, it is characterised in that the subcarrier spacing configured information and the configuration Number of subcarriers configured information is indicated by combined coding mode.
99. one kind access processing unit, it is characterised in that applied in terminal, including：
Selecting module, for selecting sequence corresponding with the terminal in arrangement set；
Generation module, for generating accidental access signal according at least to the corresponding sequence；
Sending module, for sending the accidental access signal to base station.
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