CN101128063A - Method for terminal random access to cellular wireless communication system and group identifier generation method - Google Patents
Method for terminal random access to cellular wireless communication system and group identifier generation method Download PDFInfo
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- CN101128063A CN101128063A CNA2007101615198A CN200710161519A CN101128063A CN 101128063 A CN101128063 A CN 101128063A CN A2007101615198 A CNA2007101615198 A CN A2007101615198A CN 200710161519 A CN200710161519 A CN 200710161519A CN 101128063 A CN101128063 A CN 101128063A
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Abstract
The utility model relates to a method for random access of terminal to cellular wireless communication system and creating group identifier, comprising following steps: a random time slot with a terminal in a wireless frame sends random access fronting information to a base station; the base station combines location information in the random time slot of the wireless frame and a frequency domain into a group identifier, adds the group identifier with a individual identifier into responding information, and sends the information to the terminal; the terminal judges if the group identifier and the individual identifier of random receiving information are expected value, if does, the terminal sends information and message to the base station on the uplink wireless resource. The utility model has the advantages that the group identifier that the random access responding information can be identified without SFN reading, which is important for random access during switching process, and the method is available for any configuration of the random access time slot.
Description
Technical field
The present invention relates to a kind of cellular radio communication system, relate in particular to method and group identification generation method that a kind of terminal inserts cellular radio communication system at random.
Background technology
As shown in Figure 1, cellular radio communication system mainly is made up of terminal, base station and core net.The network that the base station is formed is called wireless access network, and (Radio Access Network RAN), is responsible for the Access Layer affairs, such as the management of Radio Resource.Can there be physics or connection in logic according to actual conditions between the base station, as the base station among Fig. 11 and base station 2 or base station 3.Each base station can (Core Network CN) connects with one or more than one core net node.Core net is responsible for the Non-Access Stratum affairs, such as position renewal etc., and is the anchor point of user's face.Terminal be meant can with the various device of cellular radio communication network communication, such as mobile phone or notebook computer etc.
Cellular radio communication system is that base unit identifies with the radio frames on system time, and the numbering of these radio frames is called SFN (radio frame number).Terminal can obtain the border of radio frames by the mode of Cell searching, thereby obtains time synchronized on descending.In the such cellular radio communication system of UMTS (universal mobile telecommunications system) and LTE (long evolving system), the length of radio frames is 10ms (millisecond).Different cellular radio communication systems, the frame structure of radio frames may be different, and a common radio frames can comprise an integer subframe.When terminal obtains down-going synchronous, just can know the position of current time subframe in the current wireless frame.As shown in Figure 2, in the LTE system, comprise 10 subframes in the radio frames of a TYPE1 (Class1), each subframe comprises 2 time slots, and this frame structure is applicable to FDD (Frequency Division Duplexing (FDD)) and HCR TDD (high bit rate time division duplex); As shown in Figure 3, comprise 2 subframes in the radio frames of a TYPE2 (type 2), each subframe comprises the interval time slot between 7 time slots and two time slots, and this frame structure is applicable to LCR TDD (low bit rate rate time division duplex).The cellular radio communication system that also has is called time slot with the unit of littler one-level in the radio frames, such as in a radio frames 15 time slots being arranged in the FDD system of WCDMA (Wideband Code Division Multiple Access (WCDMA)).Random access time slot herein is meant in the cellular radio communication system time slot in the subframe of littler one-level in the radio frames or time slot or the subframe.For the radio frames of Class1 in the LTE system, random access time slot typically refers to the subframe that length is 1ms; For the radio frames of type 2 in the LTE system, random access time slot typically refers to the time slot in the subframe that length is 5ms.But exception is also arranged, and in order to reach the purpose of extensive covering, random access time slot may occupy 2 or 3 subframes or time slot in the LTE system, and these random access guidings are called as the expansion pulse sometimes; And in LCR TDD, also can adopt a kind of short random access guiding in the very little sub-district, length is shorter than general time slot.
In the existing LTE, the process that terminal inserts cellular radio communication system at random comprises following three steps:
A, terminal sends random access guiding message to the base station on certain random access time slot of radio frames;
B, the base station comprises ascending wireless resource at least to the terminal responds accidental access response message in the message;
C, terminal sends message in the base station on the ascending wireless resource of its distribution.
Among the step a, send random access guiding message to the base station in the terminal that has on the identical random access time slot more than 1 or 1.These random access guiding message might be different, also may be identical, promptly adopted identical random access guiding pseudo noise code.The random access guiding message that has adopted different pseudo noise codes can be identified in the base station on identical random access time slot, but can't identify the random access guiding message that has adopted identical pseudo noise code.
Among the step b, may comprise response message in the accidental access response message at the random access guiding message more than 1 or 1.These random access guiding message are to send over from identical random access time slot.Being incorporated in a way in the response message more than 1 accidental access response information mainly is in order to improve the utilance of random access procedure on Radio Resource.In order to allow terminal recognition go out this accidental access response message, interim group identification can be added in the base station in this message, have corresponding relation between this group identification and the random access time slot.Also comprise one and the corresponding private label of random access guiding message itself simultaneously in the accidental access response message, be generally the call number in the random access guiding set of random access guiding in the sub-district, place.The method to set up of group identification is stipulated in agreement in advance.Certain terminal has just been known its desired value with group identification and private label in the accidental access response message that receives when sending random access guiding message to the base station.
In order to keep the accidental access response process to have certain flexibility, the accidental access response message random access guiding message synchronization of on time domain, getting along well, promptly there is not fixing relation in both on time domain; On the contrary, allow accidental access response message in a time window, to send.Simultaneously in order to increase the flexibility of wireless resource scheduling, be the random access guiding message that response receives in certain random access time slot, the base station can be in above-mentioned time window 1 or a plurality of TTI (Transmission Time Interval) goes up and sends and the corresponding accidental access response message of above-mentioned random access guiding message.The time started of this time window is relevant with the speed that random access guiding message is handled in the base station, and the concluding time gives the factors such as Radio Resource of accidental access response message relevant with load and scheduling that random access guiding message is handled in the base station.
Among the step c, when terminal received 1 accidental access response message in the official hour window after, it at first verified the group identification that whether has comprised expectation in this message, and this group identification is included on the physical control channel usually; If comprised the group identification of expectation in this message, verify the private label of the random access guiding message correspondence that wherein whether also comprises and sent again; If comprised the private label of expectation, just can determine that current accidental access response message is with the random access guiding message correspondence that sends.Afterwards, terminal sends message on the ascending wireless resource of its distribution in the base station according to the actual needs in step b.The message that sends may be that request, handoff response, dispatch request or uplink synchronization request or the like are set up in 3 layers wireless connections.
In the existing disclosed technology, proposed in step b, to be provided with the method for group identification.General these methods can be calculated a group identification on the system time and the absolute position on the frequency domain according to random access time slot, make this group identification unique in the official hour scope.The defective of these methods is the terminal absolute system time that need obtain random access time slot place honeycomb at first, generally is meant SFN.But in actual applications, in handoff procedure, may can't know the SFN of target cell in advance such as terminal, this just can't calculate group identification, and often need extra delay and system handles for the SFN that obtains target cell, such as read system message, because SFN normally broadcasts in system message.The another one defective is, in the wireless telecommunication system of reality, the configuration of Random Access Channel is flexible and changeable, thus be difficult to one of regulation fixing make the time range that group identification is unique.If by notifying this time range such as the mode of system message broadcasting, perhaps can increase the flexibility of system configuration, but mean that also terminal is at every turn when initiating to insert request at random, all need to read this parameter, and the cycle of system message broadcasting is often long, therefore can increase the time that terminal inserts honeycomb.The another one problem is the information bit redundancy that the method for employing absolute position on frequency domain can cause group identification, because in general, not every ascending wireless resource all can be configured to random access resource in a TTI; And if if up Random Access Channel adopts the method for similar frequency hopping, the absolute position will change along with the variation of time, thereby has increased the complexity and the probability of errors of group identification coding.
Summary of the invention
The technical problem to be solved in the present invention provides method and the group identification generation method that a kind of terminal inserts cellular radio communication system at random, so that terminal fast, be linked in the cellular radio communication system accurately.
The technical solution used in the present invention is:
The invention provides the method that a kind of terminal inserts cellular radio communication system at random, may further comprise the steps:
The random access time slot of terminal in radio frames sends random access guiding message to the base station;
The base station is synthetic as group identification positional information and the positional information on frequency domain of random access time slot in radio frames, add accidental access response message to together with private label after, this message is sent to terminal;
Whether group identification in its accidental access response message of receiving of terminal judges and private label are desired value, if terminal sends message or data to the base station on ascending wireless resource.
Further, ascending wireless resource is contained in the accidental access response message that the base station is a terminal distribution.
Further, carry out institute in steps before, the known available random access time slot of terminal, and positional information and the positional information on frequency domain of random access time slot in its place radio frames synthesized the expectation group identification.
Further, private label is the identification number of random access guiding.
Further, positional information and positional information on frequency domain the method for synthesizing of random access time slot in radio frames comprised: the mode of combined index or the method that merges then of coding respectively.
Further, in the group identification, the coding of the positional information of random access time slot on frequency domain is in a high position.
Further, when the positional information of random access time slot in radio frames was relative position, relative position was random access time slot relative sequence number in 1 or a plurality of random access time slot in radio frames.
Further, when the positional information of random access time slot in radio frames was the absolute position, the absolute position was the numbering of random access time slot in radio frames.
Further, when the time of reception length of window of accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the absolute position of random access time slot in radio frames is the numbering of random access time slot in radio frames and the mould of dividing exactly the result.
Further, when the time of reception length of window of accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the relative position of random access time slot in radio frames is the relative sequence number of the numbering of random access time slot in radio frames in dividing exactly range of results.
Further, random access time slot is the relative position of Random Access Channel on frequency domain in the positional information on the frequency domain: only disposed 1 Random Access Channel in as the sub-district, then the position of random access time slot on frequency domain is set to 0; As having disposed a plurality of Random Access Channel in the sub-district, if do not adopt the strategy of frequency hopping, so Random Access Channel is arranged to the occupied frequency band of different Random Access Channel sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain; If adopted the strategy of frequency hopping, Random Access Channel is arranged to different Random Access Channel in the occupied frequency band of the initial position of frequency domain sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain.
Further, random access time slot is the order that Random Access Channel occurs in signaling in the positional information on the frequency domain.
The present invention also provides a kind of generation method of group identification, is applied to may further comprise the steps in the process that terminal inserts cellular radio communication system at random:
The base station is receiving terminal after the random access guiding message of its transmission, the random access time slot of judging random access guiding message place in its place radio frames positional information and the positional information on frequency domain;
Above-mentioned two positional informations are synthesized the back as group identification.
Further, positional information and positional information on frequency domain the method for synthesizing of random access time slot in radio frames comprised: the mode of combined index or the method that merges then of coding respectively.
Further, in the group identification, the coding of the positional information of random access time slot on frequency domain is in a high position.
Further, when the positional information of random access time slot in radio frames was relative position, relative position was random access time slot relative sequence number in 1 or a plurality of random access time slot in radio frames.
Further, when the positional information of random access time slot in radio frames was the absolute position, the absolute position was the numbering of random access time slot in radio frames.
Further, when the time of reception length of window of accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the absolute position of random access time slot in radio frames is the numbering of random access time slot in radio frames and the mould of dividing exactly the result.
Further, when the time of reception length of window of accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the relative position of random access time slot in radio frames is the relative sequence number of the numbering of random access time slot in radio frames in dividing exactly range of results.
Further, random access time slot is the relative position of Random Access Channel on frequency domain in the position on the frequency domain: only disposed 1 Random Access Channel in as the sub-district, then the position of random access time slot on frequency domain is set to 0; As having disposed a plurality of Random Access Channel in the sub-district, if do not adopt the strategy of frequency hopping, so Random Access Channel is arranged to the occupied frequency band of different Random Access Channel sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain; If adopted the strategy of frequency hopping, Random Access Channel is arranged to different Random Access Channel in the occupied frequency band of the initial position of frequency domain sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain.
Further, random access time slot is the order that Random Access Channel occurs in signaling in the positional information on the frequency domain.
Terminal according to the descriptor that inserts Radio Resource at random that obtains, was always known the random access time slot configuring condition of (being in the radio frames) and the configuring condition on the frequency domain on time domain before initiating to insert at random.Adopt after the present invention, can not rely on reading of SFN during group identification in determining accidental access response message, this is even more important for the random access procedure that carries out in handoff procedure.In addition, no matter how the configuration of random access time slot changes, and can adopt identical method that group representation is provided with, simple.
Description of drawings
Fig. 1 is the structure chart of cellular radio communication system in the prior art;
Fig. 2 is the wireless frame structure of LTE Class1 in the prior art;
Fig. 3 is the wireless frame structure of LTE type 2 in the prior art;
Fig. 4 inserts the flow chart of wireless telecommunication system at random for terminal in the embodiment of the invention;
Fig. 5 be in the prior art HCR TDD at the method for salary distribution schematic diagram of uplink and downlink timeslot.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
As shown in Figure 4, terminal inserts the process of wireless telecommunication system at random, comprises following step:
A, terminal send random access guiding message to the base station on certain random access time slot of radio frames;
Accidental access response message is replied in b, base station, has comprised the private label for the ascending wireless resource of above-mentioned terminal distribution and random access guiding message correspondence in the message; On physical control channel, comprised group identification RA-RNTI (random access radio network temporary mark), this RA-RNTI be mapped to the random access guiding message place random access time slot received the base station in its place radio frames positional information and the positional information on frequency domain;
After c, terminal are received accidental access response message, determine by the RA-RNTI and the private label that comprise in the accidental access response message that is relatively local and that receive whether these two signs are desired value.If two signs are desired values, just show that terminal received the accidental access response message of expectation, then terminal be to send message or the data that need transmission on the ascending wireless resource of its distribution in step b in the base station.
Before step a, promptly before terminal was initiated to insert at random, it was known inserting Radio Resource (being 1 possible or a plurality of random access time slot) and the RA-RNTI corresponding with random access time slot at random.Wherein 1 RA-RNTI be mapped to 1 random access time slot in its place radio frames positional information and the positional information on frequency domain.
Among the step b, the generation method of group identification is specially:
(1) base station is receiving terminal after the random access guiding message of its transmission, judges the positional information of random access time slot in radio frames and the positional information on frequency domain in the radio frames of random access guiding message place;
(2) coding after synthetic adds in the accidental access response message as group identification with above-mentioned two positions information.
The position of random access time slot in its place radio frames can be relative position, also can be the absolute position.Relative position can be the relative sequence number in a plurality of random access time slots of random access time slot in its place radio frames, and the absolute position can be the numbering of random access time slot in its place radio frames.Such as 10 subframes are arranged in certain radio frames, and disposed 3 random access time slots, the numbering of supposing their place subframes is respectively 0,3,6.If sequence number is with 0 beginning, the relative position of these 3 random access time slots is respectively 0,1,2 so, and the absolute position is respectively 0,3,6.
If the time window maximum length of receiving random access response message (being called for short Wm) can be less than the length of radio frames, the absolute position also can be represented with additive method so.Suppose that N is subframe or a number of time slots in the radio frames, 2 n power represents that with 2^n n is a natural number, promptly 0,1, and 2....Suppose that the n value that can divide exactly N is n
*, get M=N/ (2^n so
*).If M
*Be greater than or equal to Wm, the absolute position also can be expressed as so: subframe numbering %M
*(% is the modulo operation symbol).Such as the fdd mode N=10 of LTE, M can be 10 or 5 (to be n
*=0 or 1).If Wm is less than or equal to 5 value, such as 4, the absolute position is exactly subframe numbering %5 so; If but Wm is greater than 5 smaller or equal to 10, such as 6, the absolute position is exactly subframe numbering %10 so.For LTE TYPE1 TDD, M may get 5 or 10; For LTE TYPE2, M can be 14 or 7 (suppose uplink synchronous time slot use the numbering of front descending time slot).Adopt said method can reduce the information bit of RA-RNTI.
As a same reason, if M
*Be greater than or equal to Wm, relative position also can be shown in M so
*Relative sequence number in the scope.Absolute position such as above-mentioned random access time slot is 0,3,6, and M
*Value 5, relative position is respectively 0,1,0 so.
The benefit that adopts the relative position representation is that the used information bit of expression group identification is fewer, in above-mentioned example, represent group identification as long as 2 bits are still represented just 4 bits of needs (supposing that all subframes or time slot all may become random access time slot) with the absolute position with relative position.But adopt the relative position representation also might lead to errors.On 5 work song frames, increased by 1 random access time slot such as system.If terminal is not before also upgrading being configured to of this random access time slot, send a random access guiding message on 6 work song frames, terminal can think that group identification is 2 so, but base station side is in response, can be set to 3 by group identification, random access procedure will be failed like this.And adopting the situation of absolute position representation just in time opposite, it can deal with the exception error that may occur.Such as being example with above-mentioned situation still, terminal can think that group identification is 6 after having sent random access guiding message on the 6 work song frames, and the base station also can be set to 6 by group identification in response, thereby makes the random access procedure success.
Position on the frequency domain is meant the relative position of Random Access Channel on frequency domain.If disposed 1 Random Access Channel in the sub-district, then the position on frequency domain can simply be set to 0; Otherwise can distinguish relative sequence number according to the actual conditions of Random Access Channel on frequency domain configuration.If do not adopt the strategy of frequency hopping, sequence number can simply be arranged to the occupied frequency band of different Random Access Channel sequence number according to ascending order or descending in the current area carrier bandwidths so relatively; If adopted the strategy of frequency hopping, sequence number can be arranged to different Random Access Channel in the occupied frequency band of the initial position of frequency domain sequence number according to ascending order or descending in the current area carrier bandwidths so relatively.Also having a kind of method is frequency hopping no matter whether, defines position on the frequency domain according to the Random Access Channel order that (in system message) occurs in signaling.
Bandwidth such as the sub-district is 10Mhz, can dispose 8 Random Access Channel (supposing that each Random Access Channel occupies 1.25Mhz) at most.Now disposed 2 Random Access Channel A and B, according to the method for ascending order on frequency domain, A and the B position on frequency domain is respectively the place (if adopt the strategy of frequency hopping, then being initial position) of the 1st and the 5th 1.25Mhz.The order that two Random Access Channel are broadcasted in system message is first A, is B then.According to method as herein described, its relative position is exactly 0,1 so.
Group identification is the synthesizing of position (being called for short position F) on the position of random access time slot in radio frames (being called for short position T) and the frequency domain.Its synthetic method can adopt the method for combined index, also can adopt the method for encoding and merging then respectively.Have 10 kinds of possibilities such as position T one in certain sub-district, position F has 3 kinds of possibilities.The method of combined index is meant that group identification one has 30 kinds of possibilities, adopts the information bit of 5 bits just passable like this.The method that merges is meant and adopts 4 bits to represent position T, and 2 bits are represented position F, and position T and position F are combined becomes group identification then, and just group identification needs 6 bits.The sequencing that position T and position F arrange in group identification information in two kinds of methods can not change the essence of group identification, so who all is fine earlier.But in general, position T is after frame structure definition is finished, and no matter all can there be a upper limit relative position or absolute position, be to be used for the subframe of random access time slot in the frame structure or the maximum number of time slot is fixed, and position F can change along with the size of cell carrier bandwidth.As if the high position that the information of position F is coded in group identification more thus.
No matter adopt the configuration mode of which kind of frame structure and random access time slot in LTE, its random access procedure all comprises above-mentioned 3 steps.For implementation method of the present invention is described, be given in below under different radio frame structure and the random access time slot configuring condition, 1 interior RA-RNTI of radio frames is mapped to the method for the position of each random access time slot in its place radio frames.At the situation of expansion pulse, the absolute position is to be as the criterion with expansion first subframe that occupies of pulse or the numbering of time slot.
For convenience, suppose among the LTE 4 Random Access Channel of multipotency configuration.Adopt 2 Random Access Channel in an embodiment.There are 2 bits position on the group identification frequency domain (being called for short position F) like this, but only adopts 0 and 1 two value.In addition, the position (be called for short position T) of random access time slot in radio frames adopts 4 bits to represent.Group identification adopts the method that merges, and the position is in a high position on the frequency domain.Can calculate RA-RNTI respectively according to two kinds of obtaining value methods of position T among the embodiment.
Embodiment 01: the Class1 frame structure, be applied in FDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms
Relative sequence number=0 of position T
RA-RNTI＝0，16
The subframe numbers at absolute numbering=random access time slot place of position T is such as 0 or 5 or 9RA-RNTI=(0,16) or (5,21), perhaps (9,25)
Embodiment 02: the Class1 frame structure, be applied in FDD, and the random access time slot cycle is relative sequence number=0,1 of 5ms position T
RA-RNTI＝0，1，16，17
The subframe numbers at absolute numbering=random access time slot place of position T is such as (0,5) or (1,6) or (2,7) or (3,8) or (4,9)
RA-RNTI=(0,5,16,21) or (1,6,17,22) or (2,7,18,23) or (3,8,19,24) or (4,9,20,25)
Embodiment 03: the Class1 frame structure, be applied in FDD, and the random access time slot cycle is relative sequence number=0,1 of 1ms position T, 2,3,4,5,6,7,8,9
RA-RNTI＝0～9，16～25
Absolute numbering=0,1 of position T, 2,3,4,5,6,7,8,9
RA-RNTI＝0～9，16～25
Embodiment 04: the Class1 frame structure, be applied in FDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms, the expansion pulse takies 2 subframes
Relative sequence number=0 of position T
RA-RNTI＝0，1
The subframe numbers at absolute numbering=random access time slot place of position T, such as 0,5,8 etc.
RA-RNTI=(0,16) or (5,21) or (8,24) etc.
Embodiment 06: the Class1 frame structure, be applied in FDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms, the expansion pulse takies 3 subframes
Relative sequence number=0 of position T
RA-RNTI＝0，1
The subframe numbers at absolute numbering=random access time slot place of position T, such as 0,3,6 etc.
RA-RNTI=(0,16) or (3,19) or (6,22) etc.
HCR TDD in the method for salary distribution of uplink and downlink timeslot as shown in Figure 5 among the LTE.
Embodiment 11: the Class1 frame structure, be applied in HCR TDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms
Relative sequence number=0 of position T
RA-RNTI＝0，1
The subframe numbers at absolute numbering=random access time slot place of position T, 1 or 4 or 9 etc.
RA-RNTI=(1,17) or (4,20) or (9,25)
Embodiment 12: the Class1 frame structure, be applied in HCR TDD, and the random access time slot cycle is 5ms
Relative sequence number=0,1 of position T
RA-RNTI＝0，1，16，17
The subframe numbers at absolute numbering=random access time slot place of position T, (1,6) or (2,7) or (3,8) or (4,9)
RA-RNTI=(1,6,17,22) or (2,7,18,23) or (3,8,19,24) or (4,9,20,25)
Embodiment 14: the Class1 frame structure, be applied in HCR TDD, and the random access time slot cycle is 10ms or 20ms, the expansion pulse occupies 3 time slots
Relative sequence number=0 of position T
RA-RNTI＝0，1
The subframe numbers at absolute numbering=random access time slot place of position T, 1,2,6 or 7 etc.
RA-RNTI=(1,17) or (2,18) or (6,22) or (7,23)
Embodiment 15: the Class1 frame structure, be applied in HCR TDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms, the expansion pulse occupies 2 time slots
Relative sequence number=0 of position T
RA-RNTI＝0，1
The subframe numbers at absolute numbering=random access time slot place of position T is as 1,3 or 8 etc.
RA-RNTI=(1,17) or (3,19) or (8,24)
Among the LTE uplink and downlink timeslot of LCR TDD be assigned certain requirement: in each field, No. 0 time slot is a descending time slot; Since No. 1 time slot is continuous ascending time slot; If up timeslot number is less than 6, so remaining time slot is continuous descending time slot; The distribution of ascending time slot and descending time slot is variable.In addition for unified numbering, the time-gap number conversion in second field is the 7+ time-gap number, is 7 such as No. 0 time-gap number of second field, and the rest may be inferred.If adopted short pulse, its absolute numbering can be in existing frame outside the time-gap number so, can be 0 such as the numbering of the short pulse in the preceding field, and the numbering of the short pulse in the back field can be 7.This numbering does not change them on the time domain and the relative sequence number between other time slots.
Embodiment 21: type 2 frame structures, be applied in LCR TDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms
Relative sequence number=0 of position T
RA-RNTI＝0，1
The time-gap number at absolute numbering=random access time slot place of position T, 1 or 8 or 10
RA-RNTI=(1,17) or (8,24) or (10,26)
Embodiment 22: type 2 frame structures, be applied in LCR TDD, and the random access time slot cycle is 5ms
Relative sequence number=0,1 of position T
RA-RNTI＝0，1，16，17
The time-gap number at absolute numbering=random access time slot place of position T, (1,8) or (2,9) or (4,11) or (6,13) etc.
RA-RNTI=(1,8,17,24) or (2,9,18,25) or (4,11,20,27) or (6,13,22,29)
Embodiment 23: type 2 frame structures, be applied in LCR TDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms, short pulse
Relative sequence number=0 of position T
RA-RNTI＝0，1
The time-gap number at absolute numbering=random access time slot place of position T, 0 or 7 etc.
RA-RNTI=(0,16) or (7,23)
Embodiment 24: type 2 frame structures, be applied in LCR TDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms, the expansion pulse occupies 2 time slots
Relative sequence number=0 of position T
RA-RNTI＝0，1
The time-gap number at absolute numbering=random access time slot place of position T, 1,4 or 12 etc.
RA-RNTI=(1,17) or (4,20) or (12,28) etc.
Embodiment 25: type 2 frame structures, be applied in LCR TDD, and the random access time slot cycle is 10ms or more than the 10ms, such as 20ms, the expansion pulse occupies 3 time slots
Relative sequence number=0 of position T
RA-RNTI＝0，1
The time-gap number at absolute numbering=random access time slot place of position T, 1,2, perhaps 11 etc.
RA-RNTI=(1,17) or (2,18) or (11,27)
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (21)
1. a terminal inserts the method for cellular radio communication system at random, it is characterized in that, may further comprise the steps:
The random access time slot of terminal in radio frames sends random access guiding message to the base station;
Described base station is synthetic as group identification positional information and the positional information on frequency domain of described random access time slot in described radio frames, add accidental access response message to together with private label after, this message is sent to described terminal;
Whether described group identification and private label in its described accidental access response message of receiving of described terminal judges are desired value, if described terminal sends message or data to the base station on ascending wireless resource.
2. the method for claim 1 is characterized in that, described ascending wireless resource is contained in the accidental access response message that described base station is described terminal distribution.
3. the method for claim 1, it is characterized in that, carry out institute in steps before, the known available random access time slot of terminal, and positional information and the positional information on frequency domain of described random access time slot in its place radio frames synthesized described expectation group identification.
4. the method for claim 1 is characterized in that, described private label is the identification number of random access guiding.
5. the method for claim 1 is characterized in that, positional information and positional information on frequency domain the method for synthesizing of described random access time slot in described radio frames comprised: the mode of combined index or the method that merges then of coding respectively.
6. method as claimed in claim 5 is characterized in that, in the described group identification, the coding of the positional information of described random access time slot on described frequency domain is in a high position.
7. method as claimed in claim 5, it is characterized in that, when the positional information of described random access time slot in described radio frames was relative position, described relative position was described random access time slot relative sequence number in 1 or a plurality of random access time slot in described radio frames.
8. method as claimed in claim 5 is characterized in that, when the positional information of described random access time slot in described radio frames was the absolute position, described absolute position was the numbering of described random access time slot in described radio frames.
9. method as claimed in claim 5, it is characterized in that, when the time of reception length of window of described accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the absolute position of described random access time slot in described radio frames is numbering and the described mould of dividing exactly result of described random access time slot in described radio frames.
10. method as claimed in claim 5, it is characterized in that, when the time of reception length of window of described accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the relative position of described random access time slot in described radio frames is that the numbering of described random access time slot in described radio frames is in the described relative sequence number that divides exactly in the range of results.
11. method as claimed in claim 5, it is characterized in that, the positional information of described random access time slot on described frequency domain is the relative position of Random Access Channel on frequency domain: only disposed 1 Random Access Channel in as the sub-district, the position of then described random access time slot on frequency domain is set to 0; As having disposed a plurality of Random Access Channel in the sub-district, if do not adopt the strategy of frequency hopping, so described Random Access Channel is arranged to the occupied frequency band of different Random Access Channel sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain; If adopted the strategy of frequency hopping, described Random Access Channel is arranged to different Random Access Channel in the occupied frequency band of the initial position of frequency domain sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain.
12. method as claimed in claim 5 is characterized in that, the positional information of described random access time slot on described frequency domain is the order that Random Access Channel occurs in signaling.
13. the generation method of a group identification is applied to it is characterized in that in the process that terminal inserts cellular radio communication system at random, may further comprise the steps:
The base station is receiving terminal after the random access guiding message of its transmission, the random access time slot of judging described random access guiding message place in its place radio frames positional information and the positional information on frequency domain;
Above-mentioned two positional informations are synthesized the back as group identification.
14. method as claimed in claim 13 is characterized in that, positional information and positional information on frequency domain the method for synthesizing of described random access time slot in described radio frames comprised: the mode of combined index or the method that merges then of coding respectively.
15. method as claimed in claim 14 is characterized in that, in the described group identification, the coding of the positional information of described random access time slot on frequency domain is in a high position.
16. method as claimed in claim 14, it is characterized in that, when the positional information of described random access time slot in described radio frames was relative position, described relative position was described random access time slot relative sequence number in 1 or a plurality of random access time slot in described radio frames.
17. method as claimed in claim 14 is characterized in that, when the positional information of described random access time slot in described radio frames was the absolute position, described absolute position was the numbering of described random access time slot in described radio frames.
18. method as claimed in claim 14, it is characterized in that, when the time of reception length of window of described accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the absolute position of described random access time slot in described radio frames is numbering and the described mould of dividing exactly result of described random access time slot in described radio frames.
19. method as claimed in claim 14, it is characterized in that, when the time of reception length of window of described accidental access response message be not more than subframe in the radio frames or number of time slots by 2 power power divide exactly as a result the time, the relative position of described random access time slot in described radio frames is that the numbering of described random access time slot in described radio frames is in the described relative sequence number that divides exactly in the range of results.
20. method as claimed in claim 14, it is characterized in that, the position of described random access time slot on described frequency domain is the relative position of Random Access Channel on frequency domain: only disposed 1 Random Access Channel in as the sub-district, the position of then described random access time slot on frequency domain is set to 0; As having disposed a plurality of Random Access Channel in the sub-district, if do not adopt the strategy of frequency hopping, so described Random Access Channel is arranged to the occupied frequency band of different Random Access Channel sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain; If adopted the strategy of frequency hopping, described Random Access Channel is arranged to different Random Access Channel in the occupied frequency band of the initial position of frequency domain sequence number according to ascending order or descending in the current area carrier bandwidths at the relative position on the frequency domain.
21. method as claimed in claim 14 is characterized in that, the positional information of described random access time slot on described frequency domain is the order that Random Access Channel occurs in signaling.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101615198A CN101128063B (en) | 2007-09-24 | 2007-09-24 | Method for terminal random access to cellular wireless communication system and group identifier generation method |
| EP08800768.7A EP2160048B1 (en) | 2007-09-24 | 2008-09-03 | Terminal random access method for cellular radio communications system and method for generating group identifier |
| ES08800768.7T ES2557557T3 (en) | 2007-09-24 | 2008-09-03 | Terminal random access method for a cellular radio system and method to generate a group identifier |
| CA2693140A CA2693140C (en) | 2007-09-24 | 2008-09-03 | Terminal random access method for cellular radio communications system and method for generating group identifier |
| PCT/CN2008/072256 WO2009039749A1 (en) | 2007-09-24 | 2008-09-03 | Terminal random access method for cellular radio communications system and method for generating group identifier |
| JP2010520412A JP5184639B2 (en) | 2007-09-24 | 2008-09-03 | Terminal random access method and group ID generation method in wireless cellular communication system |
| US12/667,387 US8200241B2 (en) | 2007-09-24 | 2008-09-03 | Terminal random access method for cellular radio communications system and method for generating group identifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101615198A CN101128063B (en) | 2007-09-24 | 2007-09-24 | Method for terminal random access to cellular wireless communication system and group identifier generation method |
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| Publication Number | Publication Date |
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| CN101128063A true CN101128063A (en) | 2008-02-20 |
| CN101128063B CN101128063B (en) | 2012-05-09 |
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| CN2007101615198A Active CN101128063B (en) | 2007-09-24 | 2007-09-24 | Method for terminal random access to cellular wireless communication system and group identifier generation method |
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| WO2009039749A1 (en) * | 2007-09-24 | 2009-04-02 | Zte Corporation | Terminal random access method for cellular radio communications system and method for generating group identifier |
| WO2009117913A1 (en) * | 2008-03-25 | 2009-10-01 | 中兴通讯股份有限公司 | Group identifier generation method and random access and response method and mobile terminal |
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| AU3411299A (en) * | 1999-03-08 | 2000-09-28 | Nokia Networks Oy | Method for establishing a communication between a user equipment and a radio network |
| US6771632B2 (en) * | 2000-12-19 | 2004-08-03 | Interdigital Technology Corporation | Sub-channels for the random access channel in time division duplex |
| CN102724766B (en) * | 2006-01-17 | 2016-03-16 | 上海原动力通信科技有限公司 | The physical layer random access method of broad band time division duplex mobile communication system |
| US8457076B2 (en) * | 2006-01-20 | 2013-06-04 | Lg-Ericsson Co., Ltd. | Apparatus and method for transmitting and receiving a RACH signal in SC-FDMA system |
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