CN106961734A - The transmission method and device of information - Google Patents

The transmission method and device of information Download PDF

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Publication number
CN106961734A
CN106961734A CN201610017055.2A CN201610017055A CN106961734A CN 106961734 A CN106961734 A CN 106961734A CN 201610017055 A CN201610017055 A CN 201610017055A CN 106961734 A CN106961734 A CN 106961734A
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China
Prior art keywords
arrowband
frequency
information
offset information
subcarrier
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CN201610017055.2A
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Chinese (zh)
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CN106961734B (en
Inventor
张雯
夏树强
戴博
石靖
刘锟
陈宪明
方惠英
袁弋非
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ZTE Corp
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ZTE Corp
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Priority to CN201610017055.2A priority Critical patent/CN106961734B/en
Priority to PCT/CN2017/070448 priority patent/WO2017121289A1/en
Publication of CN106961734A publication Critical patent/CN106961734A/en
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Publication of CN106961734B publication Critical patent/CN106961734B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a kind of transmission method of information and device, wherein, this method includes：The network equipment determines frequency offset information or frequency domain position information, and the arrowband of transmission information is determined according to the frequency offset information or frequency domain position information, information is transmitted on the arrowband.By above-mentioned technical proposal, solve in LTE system bandwidth, the problem of how determining the arrowband of transmission channel, it is determined that the arrowband of transmission channel.

Description

The transmission method and device of information
Technical field
The present invention relates to the communications field, in particular to the transmission method and device of a kind of information.
Background technology
Machine type communication (Machine Type Communication, referred to as MTC) user terminal (User Equipment, referred to as UE), also known as machine to machine (Machine to Machine, referred to as M2M) user Communication equipment, is the main application form of current Internet of Things.In third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) disclose in technical report TR45.820V200 and several be applied to honeycomb level The technology of Internet of Things (Comb-Internet Of Things, referred to as C-IOT), wherein, arrowband Long Term Evolution (Narrow Band-Internet of Things, referred to as NB-IoT) technology is the most noticeable.The system bandwidth of the system is 200kHz, With global mobile communication (Global system for Mobile Communication, referred to as GSM) gsm system Channel width is identical, and this is NB-IoT system reuse GSM frequency spectrums and reduces and neighbouring interfere band with GSM channels Great convenience is carried out.NB-IoT has three kinds of operative scenarios, is independent operation " standalone " respectively, in protection band Transmission " transmits " inband " on guard band " and a PRB in LTE.
For in correlation technique, in LTE system bandwidth, the arrowband of transmission channel how is determined, there is presently no effective Solution.
The content of the invention
The invention provides a kind of transmission method of information and device, at least to solve in correlation technique in LTE system bandwidth On, the problem of how determining the arrowband of transmission channel.
According to an aspect of the invention, there is provided a kind of transmission method of information, including：
The network equipment determines frequency offset information or frequency domain position information；
The arrowband of transmission information is determined according to the frequency offset information or frequency domain position information, is transmitted on the arrowband Information.
Further, the network equipment determines that frequency offset information includes one below：
The frequency offset information is determined according to Predefined information；
The announcement information for receiving the network equipment determines the frequency offset information.
Further, the frequency offset information includes one below：
The frequency offset information carried in host system message block MIB, wherein, the frequency offset information indicates the The frequency shift (FS) of one arrowband and the second arrowband, first arrowband is the arrowband of transmission at least one of：System information block SIB, RAR, beep-page message, down control channel and PDSCH, second arrowband are transmission at least one of Arrowband：Master sync signal PSS, auxiliary synchronous signals SSS and Physical Broadcast Channel PBCH；
The frequency offset information carried in SIB, wherein, the frequency offset information indicates the 3rd arrowband and the 4th narrow The frequency shift (FS) of band, wherein, the 3rd arrowband is the arrowband of transmission at least one of：Accidental access response RAR, Beep-page message, down control channel and Physical Downlink Shared Channel PDSCH, the 4th arrowband are following at least for transmission One of arrowband：PSS, SSS, PBCH and SIB；
The frequency offset information carried in SIBx, wherein, the frequency offset information indicates the 5th arrowband and the 6th The frequency shift (FS) of arrowband, wherein, the 5th arrowband is the arrowband of transmission at least one of：RAR, beep-page message, Down control channel and PDSCH and the SIB in addition to SIBx, the 6th arrowband for transmission it is following at least it One arrowband：PSS, SSS, PBCH and SIBx, wherein, the SIBx is the SIB message specified；
The frequency offset information carried in master sync signal PSS and auxiliary synchronous signals SSS, wherein, the frequency Offset information indicates the frequency shift (FS) of the 7th arrowband and the 8th arrowband, wherein, the 7th arrowband for transmission below at least it One arrowband：PBCH, SIB, RAR, beep-page message, down control channel and PDSCH, the 8th arrowband is Transmit the arrowband of at least one of：PSS and SSS.
Further, first arrowband, the 3rd arrowband, the 5th arrowband and the 7th arrowband are to drill for a long time The Physical Resource Block PRB entered in LTE system.
Further, the middle center of second arrowband, the 4th arrowband, the 6th arrowband and the 8th arrowband The center frequency point of carrier wave meets 100KHz integral multiple.
Further, the frequency offset information indicates the number of the subcarrier of skew.
Further, the absolute value for the frequency shift (FS) X that the frequency offset information is indicated is less than or equal to Y subcarrier, X For integer, Y is default positive integer.
Further, X is the integer between -5 to 6, be either integer between -6 to 5 or is between 0~11 Integer.
Further, the frequency offset information includes：
The frequency offset information carried in MIB or SIB is specified skew between arrowband and predeterminated frequency, The specified arrowband is the arrowband of transmission at least one of：PSS, SSS, PBCH, SIB, RAR, beep-page message, Down control channel and PDSCH.
Further, the predeterminated frequency is 100KHz integral multiple.
Further, the specified arrowband is a PRB in LTE system.
Further, integral multiple or odd-multiple that the frequency shift (FS) that the frequency offset information is indicated is 2.5KHz；Institute It is the corresponding frequency shift (FS) of index in predefined set to state frequency offset information.
Further, in the case of being up arrowband in the arrowband, the frequency offset information is one below：
Frequency shift (FS) between the up arrowband and the center frequency point of up-link bandwidth；
Frequency shift (FS) between the up arrowband and 100KHz integral multiple；
Frequency shift (FS) between the up arrowband and specified frequency, the specified frequency by default UE transmission-receptions frequently Rate interval is determined；
Further, in the case of being up arrowband in the arrowband, the frequency domain position information is corresponding with up arrowband PRB indexes.
Further, the Predefined information or announcement information include at least one of：
System bandwidth；
PRB information corresponding with the up arrowband；
PRB information corresponding with the descending arrowband；
The skew of descending arrowband and the direct current DC subcarriers of system bandwidth；
The difference of the corresponding PRB indexes of the corresponding PRB indexes in up arrowband and descending arrowband；
The difference of first value and the second value, first value be the center of the up arrowband and up-link bandwidth frequently Frequency offseting value between point, second value is the frequency between descending arrowband and the center frequency point of downlink system bandwidth Deviant.
Further, in the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.015nUL；
Or,
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FUL_LOWFor the working frequency range where the up arrowband most Low frequency, NULIt is the corresponding uplink carrier frequency of system bandwidth, NOffs-ULFor the work where the up arrowband frequently The corresponding deviant of section, nULFor frequency offseting value, nULFor integer, FUL、FUL_LOW、NULAnd NOffs-ULUnit It is MHz.
Further, in the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.01nUL
Wherein, FULIt is the center frequency point of up arrowband, FUL_LOWFor the working frequency range where the up arrowband most Low frequency, NULIt is the corresponding uplink carrier frequency in up arrowband, NOffs-ULFor with the work where the up arrowband The corresponding deviant of frequency range, nULFor frequency offseting value, nULFor integer, FUL、FUL_LOW、NULAnd NOffs-ULIt is single Position is MHz.
Further, nUL∈ { -4, -3, -2, -1,0,1,2,3,4,5 },
Or, nUL∈{-5,-4,-3,-2,-1,0,1,2,3,4}
Or, nUL∈{0,1,2,3,4,5,6,7,8,9}。
Further, in the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FDL-Δf+0.015nUL；
Or,
FUL=FDL-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of the up arrowband, FDLCenter frequency point or middle center for descending arrowband are carried The frequency of ripple, Δ f is default UE transmission-reception frequency intervals, FULAnd FDLUnit is MHz, nULFor frequency Rate deviant, nULFor integer.
Further, the center frequency point of the up arrowband is：
FUL=FDL′-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FDL' be downlink system bandwidth center frequency point, Δ f is default UE transmission-reception frequency intervals, FULAnd FDL' unit is MHz, nULFor frequency offseting value, nULFor integer.
Further, the center frequency point of the up arrowband is：
FUL=FDL-Δf+0.015nUL+x·0.0075；
Or,
FUL=FDL-Δf+0.09nUL+x·0.0075；
Wherein, FULIt is the center frequency point of the up arrowband, FDLCenter frequency point or middle center for descending arrowband are carried The frequency of ripple, Δ f is default UE transmission-reception frequency intervals, FULAnd FDLUnit is MHz, nULFor frequency Rate deviant, nULFor integer, x is that 1 or -1, x indicates for predefined or high-level signaling.
Further, in the case of being descending arrowband in the arrowband, the center frequency point of the descending arrowband is：
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.3nDL；
Or,
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.2nDL；
Wherein, FDLThe frequency of center frequency point or central subcarrier for the descending arrowband, FDL_LOWUnder described The low-limit frequency of working frequency range where row arrowband, NDLFor the corresponding downlink carrier frequency of system bandwidth, NOffs-DLFor Deviant corresponding with the working frequency range where the descending arrowband, nDLFor frequency offseting value, nDLFor integer, FDL、 FDL_LOW、NDLAnd NOffs-DLUnit is MHz.
According to another aspect of the present invention, a kind of transmitting device of information is additionally provided, in the network equipment, including：
Determining module, frequency offset information or frequency domain position information are determined for the network equipment；
Transport module, the arrowband for determining transmission information according to the frequency offset information or frequency domain position information, Information is transmitted on the arrowband.
Further, the determining module includes one below：
Self-defined unit, for determining the frequency offset information according to Predefined information；
Receiving unit, the frequency offset information is determined for receiving the announcement information of the network equipment.
By the present invention, the network equipment determines frequency offset information or frequency domain position information, according to the frequency offset information Or frequency domain position information determines the arrowband of transmission information, transmits information on the arrowband, solves in LTE system bandwidth On, the problem of how determining the arrowband of transmission channel, it is determined that the arrowband of transmission channel.
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, the present invention Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the transmission method of information according to embodiments of the present invention；
Fig. 2 is a kind of structured flowchart one of the transmitting device of information according to embodiments of the present invention；
Fig. 3 is a kind of structured flowchart two of the transmitting device of information according to embodiments of the present invention；
Fig. 4 is the schematic diagram according to the preferred embodiment of the invention in system bandwidth frequency offset information.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing Etc. being for distinguishing similar object, without for describing specific order or precedence.
A kind of transmission method of information is provided in the present embodiment, and Fig. 1 is a kind of information according to embodiments of the present invention The flow chart of transmission method, as shown in figure 1, the flow comprises the following steps：
Step S102, the network equipment determines frequency offset information or frequency domain position information；
Step S104, the arrowband of transmission information is determined according to the frequency offset information or frequency domain position information, narrow at this Take transmission information.
By above-mentioned steps, the network equipment determines frequency offset information or frequency domain position information, according to frequency shift (FS) letter Breath or frequency domain position information determine the arrowband of transmission information, transmit information on the arrowband, solve in LTE system band On width, the problem of how determining the arrowband of transmission channel, it is determined that the arrowband of transmission channel.
In an embodiment of the present invention, the network equipment determines that frequency offset information includes one below：
The frequency offset information is determined according to Predefined information；
The announcement information for receiving the network equipment determines the frequency offset information.
In an embodiment of the present invention, the frequency offset information includes one below：
The frequency offset information carried in host system message block MIB, wherein, the frequency offset information indicates that first is narrow The frequency shift (FS) of band and the second arrowband, first arrowband is the arrowband of transmission at least one of：System information block SIB, RAR, beep-page message, down control channel and PDSCH, second arrowband are the arrowband of transmission at least one of： Master sync signal PSS, auxiliary synchronous signals SSS and Physical Broadcast Channel PBCH；
The frequency offset information carried in SIB, wherein, the frequency offset information indicates the 3rd arrowband and the 4th arrowband Frequency shift (FS), wherein, the 3rd arrowband is the arrowband of transmission at least one of：Accidental access response RAR, paging Message, down control channel and Physical Downlink Shared Channel PDSCH, the 4th arrowband are transmission at least one of Arrowband：PSS, SSS, PBCH and SIB；
The frequency offset information carried in SIBx, wherein, the frequency offset information indicates the 5th arrowband and the 6th arrowband Frequency shift (FS), wherein, the 5th arrowband for transmission at least one of arrowband：It is RAR, beep-page message, descending Control channel and PDSCH and the SIB in addition to SIBx, the 6th arrowband are narrow for transmission at least one of Band：PSS, SSS, PBCH and SIBx, wherein, the SIBx is the SIB message specified；
The frequency offset information carried in master sync signal PSS and auxiliary synchronous signals SSS, wherein, the frequency shift (FS) Information indicates the frequency shift (FS) of the 7th arrowband and the 8th arrowband, wherein, the 7th arrowband is narrow for transmission at least one of Band：PBCH, SIB, RAR, beep-page message, down control channel and PDSCH, the 8th arrowband are following for transmission At least one arrowband：PSS and SSS.
In an embodiment of the present invention, first arrowband, the 3rd arrowband, the 5th arrowband and the 7th arrowband are long-term A Physical Resource Block PRB in evolution LTE system.
In an embodiment of the present invention, the center of second arrowband, the 4th arrowband, the 6th arrowband and the 8th arrowband The center frequency point of subcarrier meets 100KHz integral multiple.
In an embodiment of the present invention, the frequency offset information indicates the number of the subcarrier of skew.
In an embodiment of the present invention, the absolute value for the frequency shift (FS) X that the frequency offset information is indicated is less than or equal to Y Subcarrier, X is integer, and Y is default positive integer.
In an embodiment of the present invention, X is the integer between -5 to 6, or is the integer between -6 to 5, Huo Zhewei Integer between 0~11.
In an embodiment of the present invention, the frequency offset information includes：
The frequency offset information carried in MIB or SIB, should to specify the skew between arrowband and predeterminated frequency It is the arrowband of transmission at least one of to specify arrowband：PSS, SSS, PBCH, SIB, RAR, beep-page message, under Row control channel and PDSCH.
In an embodiment of the present invention, the predeterminated frequency is 100KHz integral multiple.
In an embodiment of the present invention, it is a PRB in LTE system that this, which specifies arrowband,.
In an embodiment of the present invention, the integral multiple or strange that the frequency shift (FS) that the frequency offset information is indicated is 2.5KHz Several times；The frequency offset information is the corresponding frequency shift (FS) of index in predefined set.
In an embodiment of the present invention, in the case of being up arrowband in the arrowband, the frequency offset information is one below：
Frequency shift (FS) between the up arrowband and the center frequency point of up-link bandwidth；
Frequency shift (FS) between the up arrowband and 100KHz integral multiple；
Frequency shift (FS) between the up arrowband and specified frequency, this specifies frequency by between default UE transmission-reception frequencies Every it is determined that；
In an embodiment of the present invention, the arrowband be up arrowband in the case of, the frequency domain position information be with it is up narrow With corresponding PRB indexes.
In an embodiment of the present invention, the Predefined information or announcement information include at least one of：
System bandwidth；
PRB information corresponding with the up arrowband；
PRB information corresponding with the descending arrowband；
The skew of descending arrowband and the direct current DC subcarriers of system bandwidth；
The difference of the corresponding PRB indexes of the up corresponding PRB indexes in arrowband and descending arrowband；
The difference of first value and the second value, first value be the up arrowband and up-link bandwidth center frequency point it Between frequency offseting value, second value is frequency offseting value between descending arrowband and the center frequency point of downlink system bandwidth.
Further, in the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.015nUL；
Or,
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FUL_LOWFor the minimum of the working frequency range where the up arrowband Frequency, NULIt is the corresponding uplink carrier frequency of system bandwidth, NOffs-ULFor the working frequency range pair where the up arrowband The deviant answered, nULFor frequency offseting value, nULFor integer, FUL、FUL_LOW、NULAnd NOffs-ULUnit is MHz。
In an embodiment of the present invention, in the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.01nUL
Wherein, FULIt is the center frequency point of up arrowband, FUL_LOWFor the minimum of the working frequency range where the up arrowband Frequency, NULIt is the corresponding uplink carrier frequency in up arrowband, NOffs-ULFor with the working frequency range where the up arrowband Corresponding deviant, nULFor frequency offseting value, nULFor integer, FUL、FUL_LOW、NULAnd NOffs-ULUnit is equal For MHz.
In an embodiment of the present invention, nUL∈ { -4, -3, -2, -1,0,1,2,3,4,5 },
Or, nUL∈{-5,-4,-3,-2,-1,0,1,2,3,4}；
Or, nUL∈{0,1,2,3,4,5,6,7,8,9}。
In an embodiment of the present invention, in the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FDL-Δf+0.015nUL；
Or,
FUL=FDL-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of the up arrowband, FDLFor the center frequency point or central subcarrier of descending arrowband Frequency, Δ f be default UE transmission-reception frequency intervals, FULAnd FDLUnit is MHz, nULFor frequency Deviant, nULFor integer.
In an embodiment of the present invention, the center frequency point of the up arrowband is：
FUL=FDL′-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FDL' be downlink system bandwidth center frequency point, Δ f is default UE transmission-reception frequency intervals, FULAnd FDL' unit is MHz, nULFor frequency offseting value, nULFor integer.
In an embodiment of the present invention, the center frequency point of the up arrowband is：
FUL=FDL-Δf+0.015nUL+x·0.0075；
Or,
FUL=FDL-Δf+0.09nUL+x·0.0075；
Wherein, FULIt is the center frequency point of the up arrowband, FDLFor the center frequency point or central subcarrier of descending arrowband Frequency, Δ f be default UE transmission-reception frequency intervals, FULAnd FDLUnit is MHz, nULFor frequency Deviant, nULFor integer, x is that 1 or -1, x indicates for predefined or high-level signaling.
In an embodiment of the present invention, in the case of being descending arrowband in the arrowband, the center of the descending arrowband of the arrowband is frequently Put and be：
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.3nDL；
Or,
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.2nDL；
Wherein, FDLThe frequency of center frequency point or central subcarrier for the descending arrowband, FDL_LOWIt is descending narrow for this The low-limit frequency of working frequency range with place, NDLFor the corresponding downlink carrier frequency of system bandwidth, NOffs-DLFor with this The corresponding deviant of working frequency range where descending arrowband, nDLFor frequency offseting value, nDLFor integer, FDL、FDL_LOW、 NDLAnd NOffs-DLUnit is MHz.
A kind of transmitting device of information 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 predetermined work( The combination of the software and/or hardware of energy.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.
Fig. 2 is a kind of structured flowchart one of the transmitting device of information according to embodiments of the present invention, as shown in Fig. 2 the dress Setting in the network equipment, the device includes：
Determining module 22, frequency offset information or frequency domain position information are determined for the network equipment；
Transport module 24, the arrowband for determining transmission information according to the frequency offset information or frequency domain position information, Information is transmitted on the arrowband.
By said apparatus, determining module 22 determines frequency offset information or frequency domain position information for the network equipment, Transport module 24 is used for the arrowband that transmission information is determined according to the frequency offset information or frequency domain position information, narrow at this Transmission information is taken, is solved in LTE system bandwidth, the problem of how determining the arrowband of transmission channel, it is determined that pass The arrowband of defeated channel.
Fig. 3 is a kind of structured flowchart two of the transmitting device of information according to embodiments of the present invention, as shown in figure 3, this is true Cover half block 24 includes one below：
Self-defined unit 32, for determining the frequency offset information according to Predefined information；
Receiving unit 34, the frequency offset information is determined for receiving the announcement information of the network equipment.
With reference to preferred embodiment and embodiment, the present invention is described in detail.
Preferred embodiment one：
This preferred embodiment provides a kind of determination frequency offset, and the method for transmission channel/information.This preferred embodiment with Illustrate exemplified by NB-IoT systems, be not limited to apply in NB-IoT systems in practical application, can be used for others System.
In the related art, UE needs to carry out frequency sweep (channel raster) at 100KHz integral multiple, receives same Walk channel.In LTE system, subcarrier width is that the frequency of DC subcarriers in 15KHz, therefore LTE system is 15KHz and 100KHz common multiple, i.e. 300KHz.
In NB-IoT systems, the frequency of synchronizing channel PSS/SSS central subcarrier is 300KHz integral multiple. Such as, when system bandwidth is 20MHz, PSS/SSS central subcarrier meets for PRB#8 subcarrier #4 300KHz integral multiple, wherein, PRB indexes are PRB indexes of the prior art, i.e., will be all in system bandwidth PRB is by the PRB according to from the sub-carrier indices on the index after the minimum numbering of starting from scratch to highest of frequency, PRB On subcarrier according to from frequency it is minimum start from scratch to highest numbering after index.Other subcarriers that synchronizing channel takes Can centered on each 6 subcarriers in subcarrier both sides, or, the subcarrier of side 6,5 subcarriers of opposite side, this Invention is not limited.Any one can be used in practical application.ENB can be sent with arbitrarily selecting a kind of mode, and UE is pressed Blind Detecting is carried out according to above-mentioned several ways.Preferably, subcarrier occupancy mode is default, such as is fixed as frequency and is less than The subcarrier of central sub-carrier frequency is 5, and the subcarrier that frequency is more than central sub-carrier frequency is 6.PBCH Sent with synchronizing channel on identical arrowband.
Descending other information/channel in addition to synchronizing channel and PBCH, such as SIB, down control channel, PDSCH Deng the transmission on the arrowband for having individual skew with the PSS/SSS.Or, in addition to synchronizing channel and PBCH At least one of other information/channel is having transmission on an arrowband for skew with the PSS/SSS.
Advantage of this is that, only synchronizing channel and PBCH channels and existing PRB are not lined up, and other channels It is alignment with existing PRB.Compared with the mode that all channels are all sent on the corresponding arrowbands of PSS/SSS, Influence of the mode that the present invention is provided to legacy UE is minimum.
Fig. 4 is the schematic diagram according to the preferred embodiment of the invention in system bandwidth frequency offset information, as shown in figure 4, System bandwidth is 20MHz, and the small square frame that bold box is represented inside a PRB, bold box represents a subcarrier.Its Middle PSS/SSS central subcarrier is PRB#8 subcarrier #4, and the arrowband of occupancy is as shown in grey parts, middle center 5 subcarriers are taken on the left of carrier wave, right side takes 6 subcarriers, the arrowband of other channel occupancies as shown in oblique line portion, Take PRB#8.ENB can indicate in PBCH, other channels with respect to PSS/SSS channels arrowband to frequency Higher side offset by 1 subcarrier.
So, after UE have received PSS/SSS and PBCH, UE can offset 1 to the higher side of frequency Subcarrier goes to receive other channels.After UE access systems, if necessary to go to receive PSS/SSS/PBCH again, So need to go to receive on the arrowband where frequency hopping to PSS/SSS/PBCH.
The offset information can be default, such as be preset as offseting a subcarrier to high-frequency direction.Preferably, This mode is for the scene that PSS/SSS is in the transmission of default position, such as when NB-IoT systems are served only for 10MHz and 20MHz system bandwidth, PSS/SSS centre frequency is sent out on some PRB subcarrier #4 Send.
Or, the offset information can be that eNB is notified.ENB notifies offset, the offset in MIB Unit be subcarrier.The offset information can be 0 to 11 between positive integer, or can also for -6 to 5 it Between integer, or can also be -5 to 6 between integer, can be indicated with 4bit, or can also with other letter Combined coding is ceased to indicate.
It is alternatively possible to be limited to the PSS/SSS/PBCH of the NB-IoT systems positions sent, opened with reducing signaling Pin.Such as, for even number system bandwidth, it is limited on some PRB subcarrier #4 and #7 and sends, subcarrier #4 Corresponding skew is+1, i.e., offset a subcarrier to the high side of frequency, the corresponding skews of subcarrier #7 are -2, i.e., to The low side of frequency offsets 2 subcarriers；For odd system bandwidth, some PRB subcarrier #5 and #6 is limited in Upper to send, the corresponding skews of subcarrier #5 are 0, and the corresponding skews of subcarrier #6 are -1.It can so be adopted in PBCH 4 kinds of skews are indicated with 2bit, UE is according to the arrowband for indicating to determine to receive other channels.
Alternatively, when one PRB of PSS/SSS/PBCH occupancy portion subcarriers, the PRB distributes to one again During individual UE, the data of the UE on the portion subcarriers are struck off, eNB can come by using relatively low code check to The UE transmission, increases the accuracy of transmission.
Alternatively, UE, can be by centre frequency centring of the reception arrowband of receiver when receiving synchronizing signal The centre frequency of the reception arrowband of receiver is directed at subcarrier #4 by carrier wave, such as in Fig. 4, UE.Or, receive The centre frequency of the reception arrowband of machine can have the frequency domain position of certain deviation with central subcarrier, such as, in Fig. 4 In, the centre frequency of the reception arrowband of receiver is directed at the center of subcarrier 4 and subcarrier 5 by UE, i.e., relative In central subcarrier half of subcarrier, i.e. 7.5KHz are offset by the high direction of frequency.
Alternatively, eNB notifies the skew of descending arrowband and the DC subcarriers of system bandwidth in PBCH or MIB, Such as be+60, i.e., the central subcarrier of descending arrowband system bandwidth DC subcarriers to the 60th of the high side of frequency On individual subcarrier, by described information, UE can obtain the sequential value of the CRS on the descending arrowband, the CRS The demodulation for the information that can be used on the descending arrowband.
Preferred embodiment two：
This preferred embodiment provides a kind of determination frequency offset, and the method for transmission channel/information.This preferred embodiment with Illustrate exemplified by NB-IoT systems, be not limited to apply in NB-IoT systems in practical application, can be used for others System.
It is similar with preferred embodiment one, unlike：
PSS/SSS, PBCH and SIB1 are sent on identical arrowband, eNB notified in SIB1 it is descending except The transmission arrowband of at least one of PSS/SSS, PBCH and SIB other channel/information or other channel/information and Skew between PSS/SSS, PBCH and SIB1 transmission arrowband.UE receives the frequency offset information in SIB1, Downstream signal is received on corresponding arrowband.Or the skew is default, UE is according to the frequency displacement corresponding narrow Take reception downstream signal.
Or, PSS/SSS, PBCH and SIB are sent on identical arrowband, eNB notified in SIB except The transmission of at least one of PSS/SSS, PBCH and SIB other descending channel/information or other channel/information is narrow Skew between band and PSS/SSS, PBCH and SIB transmission arrowband, such as disappear in SIB1 or other SIB The offset information is notified in breath, UE receives the frequency offset information, downstream signal is received on corresponding arrowband.Or Skew is default described in person, and UE receives downstream signal according to the frequency displacement on corresponding arrowband.
Or, PSS/SSS, PBCH and part SIB are sent on identical arrowband, and eNB is notified in SIB Descending other channel/information except PSS/SSS, PBCH and part SIB or other channel/information at least it Skew between one transmission arrowband and PSS/SSS, PBCH and part SIB transmission arrowband, such as eNB exists Notify the offset information in SIB2, UE receives the frequency offset information, received on corresponding arrowband SIB3 and All SIB afterwards and other descending channel/information or other channel/information.Or it is described skew be it is default, UE receives downstream signal according to the frequency displacement on corresponding arrowband.
Preferred embodiment three：
This preferred embodiment provides a kind of determination frequency offset, and the method for transmission channel/information.This preferred embodiment with Illustrate exemplified by NB-IoT systems, be not limited to apply in NB-IoT systems in practical application, can be used for others System.
NB-IoT descending arrowband is a complete PRB of LTE system, all down channel or down channel At least one of on the PRB send.But in LTE system, all PRB center frequency point is not 100KHz Integral multiple, UE can do frequency sweep according to 100KHz integral multiple, and such UE has certain frequency deviation when receiving. Such as, for 10MHz system bandwidths, when PSS/SSS is sent on PRB#4, and 100KHz integral multiple meeting There is 2.5KHz frequency deviation.
In the preferred embodiment, eNB notifies the frequency deviation in PBCH/SIB.Alternatively, the frequency deviation is 2.5KHz Integral multiple.The frequency deviation can one gather in value, such as+7.5KHz, -7.5KHz ,+2.5KHz, - 2.5KHz }, eNB indicates the frequency deviation information using 2bit in PBCH/SIB.So UE is receiving PBCH/SIB Afterwards, the frequency deviation value can be obtained, then the center that centre frequency can be adjusted to a PRB is received down Row signal.Using such method so that avoid being influenceed by frequency deviation during UE channels after receipt, improve UE receptivity.
Alternatively, the frequency deviation is the corresponding frequency shift (FS) of index in predefined set.Such as described collection is combined into several PRB set, each PRB represents that each PRB pair answers a frequency offseting value, such as 5MHz by an index System bandwidth, one has the arrowband that 4 PRB are used as NB-IoT systems, be respectively PRB#2,7,17, 22, this 4 PRB are indicated with 2bit, PRB#2,7 corresponding skews are+7.5KHz, PRB#2,7 corresponding skews It is -7.5KHz, then the 2bit information that UE can be notified according to eNB obtains PRB indexes, and then obtains offset information.
Preferred embodiment four：
This preferred embodiment provides a kind of determination frequency offset, and the method for transmission channel/information.This preferred embodiment with Illustrate exemplified by NB-IoT systems, be not limited to apply in NB-IoT systems in practical application, can be used for others System.
Skew between PBCH and PSS/SSS arrowband is default, such as the arrowband of PSS/SSS is with respect to PBCH's Arrowband offsets 2 PRB to the low side of frequency.Or can also be the skew of sub-wave length, such as PSS/SSS's Arrowband offsets 20 subcarriers relative to PBCH arrowband to the high side of frequency.
Preferably, the position that PSS/SSS sends arrowband is default, and than system bandwidth as with all, PSS/SSS is narrow The central subcarrier of band be all located at the DC subcarriers of system bandwidth the high side of frequency (or or frequency it is low Side) the 60th subcarrier, this subcarrier meets 100KHz integral multiple.Here, frequency is higher than DC First subcarrier of subcarrier is first subcarrier, by that analogy.The subcarrier that PSS/SSS takes is the 55th Subcarrier is to the 66th subcarrier.Skews of the PBCH between PSS/SSS arrowband is inclined to the low direction of frequency To the 48th subcarrier so, PBCH can be sent out the shifting subcarrier of 18 subcarriers, i.e., the 37th on a PRB Send, reduce the influence transmitted to legacy UE.
Or, the frequency offset information can be included in PSS/SSS.Such as, the frequency is included in SSS Rate offset information.The frequency offset is selected in a default set.
Preferred embodiment five：
In the preferred embodiment, multiple channels are transmitted on multiple arrowbands.This preferred embodiment using NB-IoT systems as Example illustrates, is not limited to apply in NB-IoT systems in practical application, can be used for other systems.
Several transmission means are given below.
Mode one：
PSS/SSS is transmitted on an arrowband.Preferably, the central subcarrier of the PSS/SSS meets 100KHz's Integral multiple.
In addition to PSS/SSS, remaining down channel is transmitted on other one or more arrowbands.It is similar to be preferable to carry out Example four, PBCH arrowband can be obtained by the information included in default or PSS/SSS.Arrowband where SIB exists Notify that the PRB information of the arrowband in such as MIB where notice SIB such as provides SIB arrowbands place in PBCH PRB index.Or offset information of the arrowband with respect to the arrowband where MIB in MIB where notice SIB, than Such as 2 PRB are offset to the high side of frequency.The cheap information can be integer PRB or integer Subcarrier.UE receives SIB according to the offset information.
Alternatively, in SIB, the narrow band information where down control channel and/or PDSCH can be included, or relatively The offset information of arrowband where SIB, here down control channel include PDCCH and/or EPDCCH.
Mode two：
According to type/function of message/channel, multiple channels are transmitted on multiple arrowbands.
PSS/SSS/MIB is transmitted on one arrowband of identical, remaining down channel is on other one or more arrowbands Transmission.The narrow band information where SIB1 is included in MIB, or notifies that the arrowband where SIB is relative in MIB The offset information of arrowband where PSS/SSS/MIB.
Or, transmit PSS/SSS/MIB/SIB on one arrowband of identical, remaining down channel at other or Transmitted on multiple arrowbands.Narrow band information comprising down control channel and/or PDSCH in SIB, or notified in SIB Down control channel and/or offset information of the arrowband with respect to the arrowband where MIB where PDSCH.Further, The descending control of RAR, the Downlink Control Information for dispatching RAR, beep-page message and scheduling paging message is indicated in SIB The narrow band information of information.
Or, transmit PSS/SSS/MIB/SIB and all publicly-owned message on one arrowband of identical, it is described publicly-owned to disappear Breath includes the Downlink Control Information of RAR, the Downlink Control Information for dispatching RAR, beep-page message and scheduling paging message. UE unicast info is sent on other arrowbands, and eNB indicates that UE receives the descending of unicast info in SIB to UE The arrowband of control channel and/or PDSCH.
Or, transmit PSS/SSS/MIB/SIB and the publicly-owned message in part on one arrowband of identical, it is described publicly-owned to disappear Breath includes the Downlink Control Information of RAR, the Downlink Control Information for dispatching RAR, beep-page message and scheduling paging message. ENB indicates the arrowband of the arrowband where remaining publicly-owned message and UE unicast info in SIB.
Or, the publicly-owned message of PSS/SSS/MIB/SIB and whole/part is transmitted all on an arrowband, and UE is being received Before the narrow band information for the detection down control channel that eNB is sent, all downstream signal is received on the arrowband.If UE to be received and detect down control channel on the narrow band information of detection down control channel, UE to the arrowband.eNB The narrow band information is included in the RRC signaling for be sent to UE, or comprising the narrow band information in message four.
Alternatively, down control channel and PDSCH can only notify descending control in identical arrowband, such as SIB The arrowband of channel, PDSCH arrowband is identical with the arrowband of Downlink Control Information.The arrowband of down control channel can be only There is one, it is possibility to have multiple, UE receives down control channel, such as root according to default rule on an arrowband Determined according to C-RNTI.
Mode three：
All arrowbands are all the arrowbands of independent operation, i.e., all down channel/information can be sent on each arrowband, bag Include PSS/SSS, PBCH, SIB, RAR, beep-page message, down control channel and downstream data channel.
Mode four：
Some arrowbands are the arrowbands of independent operation, i.e., all down channel/information can be all sent on described arrowband, including PSS/SSS, PBCH, SIB, RAR, beep-page message, down control channel and downstream data channel.Remaining arrowband is Only support the arrowband of unicast data, the down control channel and PDSCH proprietary for sending UE.
In above several ways, for mode three and mode four, UE can work on an arrowband always.For All modes, UE can frequency-hopping transmissions, here, frequency-hopping transmissions can be frequency hopping to going to receive some on an arrowband Information, such as mode one, UE receives synchronizing signal on PSS/SSS arrowbands, afterwards again frequency hopping to some arrowband Upper detection down control channel.Frequency-hopping transmissions can also be to improve the performance of certain transmission, the frequency hopping on multiple arrowbands Transmission.Such as under coverage enhancement scene, some UE needs to repeat to transmit 20 subframes, then UE is in multiple arrowbands Upper frequency-hopping transmissions, increase frequency diversity gain, improve transmission performance.
Preferred embodiment six：
This preferred embodiment provides a kind of method for obtaining up arrowband.This preferred embodiment comes by taking NB-IoT systems as an example Illustrate, the method for proposition is not limited to apply in NB-IoT systems.
ENB notifies the corresponding uplink carrier frequency N of system bandwidth to UEUL, UE is according to NULUp system can be obtained The wide center frequency point F of regiment commanderUL'=FUL_LOW+0.1(NUL-NOffs-UL), wherein FUL_LOWFor the NULCorrespondence Up working frequency range Operation Band low-limit frequency, unit is MHz, NULCorresponding up work is frequently Section is the working frequency range where the up arrowband.NOffs-ULFor the corresponding deviant of the up working frequency range, it is One constant, such as band#1, NOffs-ULFor 18000.
The frequency domain position of up arrowband is met：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.015nUL
Wherein, nULFor integer.That is, the center frequency point of up arrowband for up-link bandwidth center frequency point to The low or high direction skew integral multiple subcarrier of frequency.
Or,
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.09nUL
Wherein, nULFor integer.That is, the center frequency point of up arrowband for up-link bandwidth center frequency point to The low or high direction of frequency offsets half of PRB integral multiple.When system bandwidth is even number, the center of up arrowband Frequency offsets half of PRB odd-multiple for the center frequency point of up-link bandwidth to the low or high direction of frequency；When being When commanding a width of odd number, the center frequency point of up arrowband for up-link bandwidth center frequency point to the low or high side of frequency To half of PRB of skew even-multiple.
Alternatively, the frequency domain position of up arrowband is obtained using default mode, such as, above-mentioned nULFor preset value.
Alternatively, default or eNB notifies the DC positional informations of system bandwidth, the frequency domain position of up arrowband to UE Obtained according to described information.Such as eNB notifies DC and the offset information of descending arrowband to UE, and described information can be wrapped It is contained in SIB.Such as eNB to UE notify DC for descending arrowband center frequency point/central subcarrier/starting subcarrier/ End k-th subcarrier of the subcarrier to the low direction of frequency, or in+1 subcarrier of k-th of subcarrier and kth Centre position, or descending arrowband center frequency point/central subcarrier/starting subcarrier/by subcarrier in DC to frequency K-th of subcarrier in high direction, or in the centre position of+1 subcarrier of k-th of subcarrier and kth.Wherein, Assuming that descending arrowband takes N number of subcarrier, sub-carrier indices from frequency it is minimum to highest be respectively 0~N-1, if N For even number, center frequency point is subcarrier # (N/2-1) and subcarrier #n centre position, and central subcarrier is subcarrier (N/2-1) or for N, starting subcarrier is 0, and cut-off subcarrier is N-1.Such as descending arrowband takes 12 sons Carrier wave, sub-carrier indices from frequency it is minimum to highest be respectively 0~11, then center frequency point be subcarrier #5 and 6 in Between position, central subcarrier is subcarrier 5 or is 6, and starting subcarrier is 0, if cut-off subcarrier is that 11. N are Odd number, center frequency point is subcarrier # (N/2) center frequency point, and central subcarrier is subcarrier (N/2), and starting is carried Ripple is 0, and cut-off subcarrier is that N-1. assumes that starting subcarrier/cut-off subcarrier/central subcarrier of descending arrowband is frequency The n-th 1 subcarriers above/below DC, starting subcarrier/cut-off subcarrier/central subcarrier of up arrowband is above / less than the n-th 2 subcarriers, wherein n1=n2 of center frequency point, or n1-n2=c, wherein c are integer, and be default Constant.Or, the center frequency point of descending arrowband is than the downlink system high/low f1 of bandwidth center frequency, in up arrowband Heart frequency is than up-link bandwidth center frequency high/low f2, wherein f1=f2, or f1-f2=c, wherein c=(15m+7.5) KHz, or c=(15m) KHz wherein m are integer.
Alternatively, eNB can also notify the deviant between the center frequency point of up arrowband and up-link bandwidth to UE. The deviant can for up arrowband starting subcarrier/by subcarrier/center frequency point/central subcarrier and up system The deviant of the wide center frequency point of regiment commander.UE is obtained after the center frequency point of up-link bandwidth, according to the deviant, The position of up arrowband is obtained, the deviant can indicate integral multiple subcarrier, or be integral multiple PRB, such as N in above-mentioned formulaUL。
Alternatively, eNB notifies system bandwidth information to UE, and notifies the corresponding PRB indexes in up arrowband to UE, So UE can obtain the position of up arrowband according to system bandwidth and PRB indexes.Alternatively, eNB notifies up Frequency shift (FS) between the corresponding PRB indexes of the corresponding PRB indexes in arrowband and descending arrowband, the descending arrowband correspondence PRB indexes be descending arrowband where PRB indexes, or be descending arrowband starting subcarrier/by subcarrier/ PRB indexes where center frequency point/central subcarrier.
Preferred embodiment seven：
This preferred embodiment provides a kind of method for obtaining up arrowband.This preferred embodiment comes by taking NB-IoT systems as an example Illustrate, the method for proposition is not limited to apply in NB-IoT systems.
ENB notifies the corresponding uplink carrier frequency N of system bandwidth to UEUL, UE is according to NULUp system can be obtained The wide center frequency point F of regiment commanderUL'=FUL_LOW+0.1(NUL-NOffs-UL), wherein FUL_LOWFor the NULCorrespondence Up working frequency range Operation Band low-limit frequency, unit is MHz, NOffs-ULFor the up work Make the corresponding deviant of frequency range, be a constant, such as band#1, NOffs-ULFor 18000.
The frequency domain position of up arrowband is met：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.015nUL
Wherein, nULFor integer.That is, the center frequency point of up arrowband for up-link bandwidth center frequency point to The low or high direction skew integral multiple subcarrier of frequency.
Further, the frequency domain position of up frequency can meet following formula：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.09nUL
Wherein, nULFor integer.That is, the center frequency point of up arrowband for up-link bandwidth center frequency point to The low or high direction of frequency offsets half of PRB integral multiple.When system bandwidth is even number, the center of up arrowband Frequency offsets half of PRB odd-multiple for the center frequency point of up-link bandwidth to the low or high direction of frequency；When being When commanding a width of odd number, the center frequency point of up arrowband for up-link bandwidth center frequency point to the low or high side of frequency To half of PRB of skew even-multiple.
Further, when system bandwidth known to UE is odd number bandwidth or even number bandwidth, the frequency domain position of up frequency It can determine as follows.If system bandwidth is odd number bandwidth, up during such as 3MHz/5MHz/15MHz The frequency domain position of frequency can meet following formula：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.18nUL
Wherein, nULFor integer.That is, the center frequency point of up arrowband for up-link bandwidth center frequency point to The low or high direction of frequency offsets PRB integral multiple.
If system bandwidth is even number bandwidth, during such as 10MHz/20MHz, the frequency domain position of up frequency can be met down Formula：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.09(2nUL+1)
Wherein, nULFor integer.That is, the center frequency point of up arrowband for up-link bandwidth center frequency point to The low or high direction of frequency offsets half of PRB odd-multiple.
Alternatively, the frequency domain position of up arrowband is obtained using default mode, such as, above-mentioned nULFor preset value.
Alternatively, default or eNB notifies the DC positional informations of system bandwidth, the frequency domain position of up arrowband to UE Obtained according to described information.Such as eNB notifies DC and the offset information of descending arrowband to UE, and described information can be wrapped It is contained in SIB.Such as eNB to UE notify DC for descending arrowband center frequency point/central subcarrier/starting subcarrier/ End k-th subcarrier of the subcarrier to the low direction of frequency, or in+1 subcarrier of k-th of subcarrier and kth Centre position, or descending arrowband center frequency point/central subcarrier/starting subcarrier/by subcarrier in DC to frequency K-th of subcarrier in high direction, or in the centre position of+1 subcarrier of k-th of subcarrier and kth.Wherein, Assuming that descending arrowband takes N number of subcarrier, sub-carrier indices from frequency it is minimum to highest be respectively 0~N-1, if N For even number, center frequency point is subcarrier # (N/2-1) and subcarrier #n centre position, and central subcarrier is subcarrier (N/2-1) or for N, starting subcarrier is 0, and cut-off subcarrier is N-1.Such as descending arrowband takes 12 sons Carrier wave, sub-carrier indices from frequency it is minimum to highest be respectively 0~11, then center frequency point be subcarrier #5 and 6 in Between position, central subcarrier is subcarrier 5 or is 6, and starting subcarrier is 0, if cut-off subcarrier is that 11. N are Odd number, center frequency point is subcarrier # (N/2) center frequency point, and central subcarrier is subcarrier (N/2), and starting is carried Ripple is 0, and cut-off subcarrier is that N-1. assumes that starting subcarrier/cut-off subcarrier/central subcarrier of descending arrowband is frequency The n-th 1 subcarriers above/below DC, starting subcarrier/cut-off subcarrier/central subcarrier of up arrowband is above / less than the n-th 2 subcarriers, wherein n1=n2 of center frequency point, or n1-n2=c, wherein c are integer, and be default Constant.Or, the center frequency point of descending arrowband is than the downlink system high/low f1 of bandwidth center frequency, in up arrowband Heart frequency is than up-link bandwidth center frequency high/low f2, wherein f1=f2, or f1-f2=c, wherein c=(15m+7.5) KHz, or c=(15m) KHz wherein m are integer.
Alternatively, eNB can also notify the deviant between the center frequency point of up arrowband and up-link bandwidth to UE. The deviant can for up arrowband starting subcarrier/by subcarrier/center frequency point/central subcarrier and up system The deviant of the wide center frequency point of regiment commander.UE is obtained after the center frequency point of up-link bandwidth, according to the deviant, The position of up arrowband is obtained, the deviant can indicate integral multiple subcarrier, or be integral multiple PRB, such as N in above-mentioned formulaUL。
Alternatively, eNB notifies system bandwidth information to UE, and notifies the corresponding PRB indexes in up arrowband to UE, So UE can obtain the position of up arrowband according to system bandwidth and PRB indexes.Alternatively, eNB notifies up Frequency shift (FS) between the corresponding PRB indexes of the corresponding PRB indexes in arrowband and descending arrowband, the descending arrowband correspondence PRB indexes be descending arrowband where PRB indexes, or be descending arrowband starting subcarrier/by subcarrier/ PRB indexes where center frequency point/central subcarrier.
Alternatively, for inband scenes, up arrowband should be a PRB in system, for guard band Scape, the up arrowband PRB pair that can get along well is neat.
Preferred embodiment eight：
This preferred embodiment provides a kind of method for obtaining up arrowband.This preferred embodiment comes by taking NB-IoT systems as an example Illustrate, the method for proposition is not limited to apply in NB-IoT systems.
ENB notifies the corresponding uplink carrier frequency N in up arrowband to UEUL, UE is according to NULIt can obtain up narrow The center frequency point of band, the center frequency point of up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.01nUL,
Wherein nULFor integer.
Preferably, nUL∈{-4,-3,-2,-1,0,1,2,3,4,5}
Or, nUL∈{-5,-4,-3,-2,-1,0,1,2,3,4}
Or, nUL∈{0,1,2,3,4,5,6,7,8,9}
Wherein FUL_LOWFor the NULCorresponding up working frequency range Operation Band low-limit frequency, unit For MHz, NOffs-ULA constant for the corresponding deviant of the up working frequency range, such as band#1, NOffs-ULFor 18000.
Alternatively, the nULTo be default, such as it is fixed as 0, or nULIt is that eNB is notified, can be in SIB It is middle to notify, or notified in RRC signaling, such as eNB indicates n using 4bitUL, or the information can also Combined coding is carried out with other information to be indicated.
Preferred embodiment nine：
This preferred embodiment provides a kind of method for obtaining up arrowband.This preferred embodiment comes by taking NB-IoT systems as an example Illustrate, the method for proposition is not limited to apply in NB-IoT systems.
The downlink center frequency that UE is obtained according to channel raster frequency sweeps, according to the downlink center frequency working frequency range Operation Band, obtain the corresponding default UE transmission-reception frequency interval Default UE of the working frequency range TX-RX frequency separation Δ f, are then obtained according to the descending frequency and transmission-reception centre frequency interval Up center frequency point, up center frequency point is：
FUL=FDL-Δf+0.015nUL
Wherein, FDLThe center frequency point of center frequency point or downlink center subcarrier for descending arrowband, downlink center is carried The center frequency point of ripple can be referred to as the frequency of downlink center subcarrier, nULFor integer, represent relative in transmission-reception The sub-carrier number for the up center frequency point skew that frequency of heart interval is obtained.The nULIt can be default, such as be 0, Or can also be that eNB is notified, such as indicated in SIB.Alternatively, the nULCan be 0~11 between Integer, is either integer between -5~6 or is integer between -6~5.
Or,
FUL=FDL-Δf+0.09nUL
Wherein, nULFor integer, represent the up center frequency point that is obtained relative to transmission-reception centre frequency interval to frequency High/low direction offsets half of PRB integral multiple.The nULIt can be default, such as be 0, or can also be What eNB was notified, such as indicated in SIB.Alternatively, the nULIt can be the integer between -110~110.
Preferred embodiment ten：
This preferred embodiment provides a kind of method for obtaining up arrowband.This preferred embodiment comes by taking NB-IoT systems as an example Illustrate, the method for proposition is not limited to apply in NB-IoT systems.
The center frequency point of up arrowband is：
FUL=FDL′-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FDL' be downlink system bandwidth center frequency point, Δ f is default UE transmission-reception frequency intervals, FULAnd FDL' unit is MHz, nULFor frequency offseting value, nULFor integer.
FDL' can be that eNB notifies to notify the center and descending arrowband of system bandwidth to UE to UE, such as eNB Central subcarrier between frequency interval.
Preferred embodiment 11：
This preferred embodiment provides a kind of method for obtaining up arrowband.This preferred embodiment comes by taking NB-IoT systems as an example Illustrate, the method for proposition is not limited to apply in NB-IoT systems.
The downlink center frequency that UE is obtained according to channel raster frequency sweeps, according to the downlink center frequency working frequency range Operation Band, obtain the corresponding default UE transmission-reception frequency intervals of the working frequency range, then according to institute State descending frequency and transmission-reception centre frequency interval obtains up center frequency point, up center frequency point is：
FUL=FDL-Δf+0.015nUL+x·0.0075
Wherein, FDLFor the center frequency point of descending arrowband, nULFor integer, represent relative between transmission-reception centre frequency Every the sub-carrier number of obtained up center frequency point skew.The nULIt can be default, such as be 0, or also may be used To be that eNB is notified, such as indicated in SIB.Alternatively, the nULCan be the integer between 0~11, or Person is the integer between -5~6, or is the integer between -6~5.X is 1 or -1, is in order to when descending center When frequency is between two subcarriers, it is ensured that the center of up frequency is also in the middle of two subcarriers.
Or,
FUL=FDL-Δf+0.09nUL+x·0.0075
Wherein, nULFor integer, represent the up center frequency point that is obtained relative to transmission-reception centre frequency interval to frequency High/low direction offsets half of PRB integral multiple.The nULIt can be default, such as be 0, or can also be What eNB was notified, such as indicated in SIB.Alternatively, the nULIt can be the integer between -110~110.
Preferred embodiment 12：
The center frequency point of center frequency point/central subcarrier of descending arrowband is met：
FDL=FDL_LOW+0.1(NDL-NOffs-DL)
Wherein FDL_LOWFor the NDLCorresponding descending working frequency range Operation Band low-limit frequency, unit For MHz, NOffs-DLA constant for the corresponding deviant of the descending working frequency range, such as band#1, NOffs-DLFor 0.
Alternatively, the center frequency point of center frequency point/central subcarrier of descending arrowband is met：
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.3nDL
Wherein, NDLFor the corresponding N of center frequency point of system bandwidthDL, nDLIt is default for integer, or eNB matches somebody with somebody Put, such as eNB is configured to UE, or determined according to eNB to the information that UE is configured.
Alternatively, nDLFor the integer between -3~-29 or 3~29.
Alternatively, for the NB-IoT being operated on protection band guard band, center frequency point/middle center of descending arrowband The center frequency point of carrier wave is met：
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.2nDL
Wherein, NDLFor the corresponding N of center frequency point of system bandwidthDL, nDLTo be default, or eNB configurations, Such as eNB is configured to UE, or is determined according to eNB to the information that UE is configured.Alternatively, nDLMinimum value Determined by the system bandwidth of cell.
Preferred embodiment 13：
In LTE system, staggered 7.5KHz between up digital baseband and ABB, i.e., half subcarrier, For under NB-IoT scenes, introducing the transmission of 3.75KHz subcarrier width, in order to avoid with legacy UE's Interference, then should also stagger 7.5KHz between up digital baseband and ABB, that is, stagger 7.5/3.75=2 son Carrier wave.If up using 2.5kHz subcarrier width transmission, it is necessary to the 7.5/2.5=3 subcarrier that stagger.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment Method the mode of required general hardware platform can be added 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 for having technology to contribute can be embodied in the form of software product, and the computer software product is stored in one In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions are make it that a station terminal equipment (can To be mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.
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 distinguishes position In multiple processors.
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 the method and step of above-described embodiment to be arranged to storage to be used for：
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), 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-described embodiment according to the program code stored in storage medium Method and step.
Alternatively, the specific example in the present embodiment may be referred to showing 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 realizes that they can be concentrated on single computing device, or is distributed in multiple computing devices and is constituted Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to by they Storage is performed by computing device in the storage device, and in some cases, can be to be held different from order herein They, are either fabricated to each integrated circuit modules or will be many in them by the shown or described step of row respectively Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware Combined with software.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the technology of this area For personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any Modification, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (24)

1. a kind of transmission method of information, it is characterised in that including：
The network equipment determines frequency offset information or frequency domain position information；
The arrowband of transmission information is determined according to the frequency offset information or frequency domain position information, on the arrowband Transmit information.
2. according to the method described in claim 1, it is characterised in that the network equipment determine frequency offset information include with It is one of lower：
The frequency offset information is determined according to Predefined information；
The announcement information for receiving the network equipment determines the frequency offset information.
3. method according to claim 2, it is characterised in that the frequency offset information includes one below：
The frequency offset information carried in host system message block MIB, wherein, the frequency offset information is indicated The frequency shift (FS) of first arrowband and the second arrowband, first arrowband is the arrowband of transmission at least one of：System Block of information SIB, RAR, beep-page message, down control channel and PDSCH, second arrowband are following extremely for transmission One of few arrowband：Master sync signal PSS, auxiliary synchronous signals SSS and Physical Broadcast Channel PBCH；
The frequency offset information carried in SIB, wherein, the frequency offset information indicates the 3rd arrowband and the The frequency shift (FS) of four arrowbands, wherein, the 3rd arrowband is the arrowband of transmission at least one of：Stochastic accessing Respond RAR, beep-page message, down control channel and Physical Downlink Shared Channel PDSCH, the 4th arrowband To transmit the arrowband of at least one of：PSS, SSS, PBCH and SIB；
The frequency offset information carried in SIBx, wherein, the frequency offset information indicates the 5th arrowband and the The frequency shift (FS) of six arrowbands, wherein, the 5th arrowband is the arrowband of transmission at least one of：RAR, paging Message, down control channel and PDSCH and the SIB in addition to SIBx, the 6th arrowband for transmission with At least one lower arrowband：PSS, SSS, PBCH and SIBx, wherein, the SIBx is a SIB specified Message；
The frequency offset information carried in master sync signal PSS and auxiliary synchronous signals SSS, wherein, the frequency Rate offset information indicates the frequency shift (FS) of the 7th arrowband and the 8th arrowband, wherein, the 7th arrowband is following for transmission At least one arrowband：PBCH, SIB, RAR, beep-page message, down control channel and PDSCH, described Eight arrowbands are the arrowband of transmission at least one of：PSS and SSS.
4. method according to claim 3, it is characterised in that
First arrowband, the 3rd arrowband, the 5th arrowband and the 7th arrowband are Long Term Evolution LTE A Physical Resource Block PRB in system.
5. method according to claim 3, it is characterised in that
Second arrowband, the 4th arrowband, the central subcarrier of the 6th arrowband and the 8th arrowband Center frequency point meets 100KHz integral multiple.
6. the method according to claim 1 or 3, it is characterised in that
The frequency offset information indicates the number of the subcarrier of skew.
7. the method according to claim 1 or 3, it is characterised in that
The absolute value for the frequency shift (FS) X that the frequency offset information is indicated is less than or equal to Y subcarrier, and X is integer, Y is default positive integer.
8. method according to claim 6, it is characterised in that
X is the integer between -5 to 6, be either integer between -6 to 5 or is integer between 0~11.
9. according to the method described in claim 1, it is characterised in that the frequency offset information includes：
The frequency offset information carried in MIB or SIB is specified skew between arrowband and predeterminated frequency, The specified arrowband is the arrowband of transmission at least one of：PSS, SSS, PBCH, SIB, RAR, paging disappear Breath, down control channel and PDSCH.
10. method according to claim 9, it is characterised in that
The predeterminated frequency is 100KHz integral multiple.
11. method according to claim 9, it is characterised in that
The specified arrowband is a PRB in LTE system.
12. method according to claim 9, it is characterised in that including one below
Integral multiple or odd-multiple that the frequency shift (FS) that the frequency offset information is indicated is 2.5KHz；
The frequency offset information is the corresponding frequency shift (FS) of index in predefined set.
13. method according to claim 2, it is characterised in that
In the case of being up arrowband in the arrowband, the frequency offset information is one below：
Frequency shift (FS) between the up arrowband and the center frequency point of up-link bandwidth；
Frequency shift (FS) between the up arrowband and 100KHz integral multiple；
Frequency shift (FS) between the up arrowband and specified frequency, the specified frequency sent by default UE- Receives frequency interval is determined.
14. method according to claim 1 or 2, it is characterised in that
In the case of being up arrowband in the arrowband, the frequency domain position information is PRB ropes corresponding with up arrowband Draw.
15. the method according to claim 2 or 13, it is characterised in that
The Predefined information or announcement information include at least one of：
System bandwidth；
PRB information corresponding with the up arrowband；
PRB information corresponding with the descending arrowband；
The skew of descending arrowband and the direct current DC subcarriers of system bandwidth；
The difference of the corresponding PRB indexes of the corresponding PRB indexes in up arrowband and descending arrowband；
The difference of first value and the second value, first value is in the up arrowband and up-link bandwidth Frequency offseting value between heart frequency, second value be descending arrowband and downlink system bandwidth center frequency point it Between frequency offseting value.
16. the method according to claim 1 or 13, it is characterised in that
In the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.015nUL；
Or,
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FUL_LOWFor the working frequency range where the up arrowband Low-limit frequency, NULIt is the corresponding uplink carrier frequency of system bandwidth, NOffs-ULWhere the up arrowband The corresponding deviant of working frequency range, nULFor frequency offseting value, nULFor integer, FUL、FUL_LOW、NULWith NOffs-ULUnit is MHz.
17. the method according to claim 1 or 13, it is characterised in that
In the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FUL_LOW+0.1(NUL-NOffs-UL)+0.01nUL
Wherein, FULIt is the center frequency point of up arrowband, FUL_LOWFor the working frequency range where the up arrowband Low-limit frequency, NULIt is the corresponding uplink carrier frequency in up arrowband, NOffs-ULFor with the up arrowband institute The corresponding deviant of working frequency range, nULFor frequency offseting value, nULFor integer, FUL、FUL_LOW、NUL And NOffs-ULUnit is MHz.
18. method according to claim 17, it is characterised in that
nUL∈ { -4, -3, -2, -1,0,1,2,3,4,5 },
Or, nUL∈{-5,-4,-3,-2,-1,0,1,2,3,4}；
Or, nUL∈{0,1,2,3,4,5,6,7,8,9}。
19. the method according to claim 1 or 13, it is characterised in that
In the case of being up arrowband in the arrowband, the center frequency point of the up arrowband is：
FUL=FDL-Δf+0.015nUL；
Or,
FUL=FDL-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of the up arrowband, FDLCenter frequency point or center for descending arrowband The frequency of subcarrier, Δ f is default UE transmission-reception frequency intervals, FULAnd FDLUnit is MHz, nUL For frequency offseting value, nULFor integer.
20. method according to claim 13, it is characterised in that
The center frequency point of the up arrowband is：
FUL=FDL′-Δf+0.09nUL；
Wherein, FULIt is the center frequency point of up arrowband, FDL' be downlink system bandwidth center frequency point, Δ f is Default UE transmission-reception frequency intervals, FULAnd FDL' unit is MHz, nULFor frequency offseting value, nUL For integer.
21. method according to claim 13, it is characterised in that
The center frequency point of the up arrowband is：
FUL=FDL-Δf+0.015nUL+x·0.0075；
Or,
FUL=FDL-Δf+0.09nUL+x·0.0075；
Wherein, FULIt is the center frequency point of the up arrowband, FDLCenter frequency point or center for descending arrowband The frequency of subcarrier, Δ f is default UE transmission-reception frequency intervals, FULAnd FDLUnit is MHz, nUL For frequency offseting value, nUL is integer, and x is that 1 or -1, x indicates for predefined or high-level signaling.
22. the method according to claim 1 or 13, it is characterised in that
In the case of being descending arrowband in the arrowband, the center frequency point of the descending arrowband is：
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.3nDL；
Or,
FDL=FDL_LOW+0.1(NDL-NOffs-DL)+0.2nDL；
Wherein, FDLThe frequency of center frequency point or central subcarrier for the descending arrowband, FDL_LOWFor institute State the low-limit frequency of the working frequency range where descending arrowband, NDLFor the corresponding downlink carrier frequency of system bandwidth, NOffs-DLFor deviant corresponding with the working frequency range where the descending arrowband, nDLFor frequency offseting value, nDL For integer, FDL、FDL_LOW、NDLAnd NOffs-DLUnit is MHz.
23. a kind of transmitting device of information, in the network equipment, it is characterised in that including：
Determining module, frequency offset information or frequency domain position information are determined for the network equipment；
Transport module, the arrowband for determining transmission information according to the frequency offset information or frequency domain position information, Information is transmitted on the arrowband.
24. device according to claim 23, it is characterised in that the determining module includes one below：
Self-defined unit, for determining the frequency offset information according to Predefined information；
Receiving unit, the frequency offset information is determined for receiving the announcement information of the network equipment.
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