CN101873713A - Random accessing method and terminal thereof - Google Patents

Random accessing method and terminal thereof Download PDF

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Publication number
CN101873713A
CN101873713A CN200910132250A CN200910132250A CN101873713A CN 101873713 A CN101873713 A CN 101873713A CN 200910132250 A CN200910132250 A CN 200910132250A CN 200910132250 A CN200910132250 A CN 200910132250A CN 101873713 A CN101873713 A CN 101873713A
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China
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mac rar
terminal
mac
rar
situation
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沈晓芹
杜忠达
喻斌
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ZTE Corp
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ZTE Corp
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Priority to CN200910132250A priority Critical patent/CN101873713A/en
Priority to PCT/CN2009/072502 priority patent/WO2010121446A1/en
Publication of CN101873713A publication Critical patent/CN101873713A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

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

Abstract

The invention discloses a random accessing method and a terminal thereof. The method comprises the following steps: a terminal transmits random access precursor (RAP) to a base station; the terminal receives a message of random access response (RAR) which is transmitted by the base station through a media access control protocol data unit (MAC PDU), wherein preset identification is carried on the first bit position of the first byte in the media access control random access response (MAC RAR) in the MAC PDU, and is used for indicating whether the MAC RAR is the simply structured MAC RAR or not; and if the preset identification is the simply structure MAC RAR, timing advance command variable or timing advance command variable and uplink authentication variable are carried in the MAC RAR. Through the processing, system resources can be saved, and signaling redundancy can be shortened.

Description

Accidental access method, terminal
Technical field
The present invention relates to the communications field, and especially, relate to a kind of accidental access method, terminal.
Background technology
In correlation technique, as shown in Figure 1, cellular radio communication system mainly is made up of subscriber equipment (User Equipment abbreviates UE as), base station (base station 1, base station 2, base station 3) and core net.Wherein, the network that the base station is formed is called wireless access network (Radio Access Network abbreviates RAN as), and RAN is responsible for the Access Layer affairs, for example, and the management of Radio Resource etc.Can have physics or connection in logic according to actual conditions between the base station, for example, the base station 1 among Fig. 1, base station 2, base station 3 all can connect with one or more than one core net node (Core Network abbreviates CN as).Core net is the anchor point of user's face, is responsible for the Non-Access Stratum affairs, for example, and position renewal etc.Subscriber equipment (terminal) be meant can with the various device of cellular radio communication network communication, for example, mobile phone, notebook computer etc.
At present, in cellular radio communication system, triggering terminal access base station at random mainly contains following five kinds of situations:
1, terminal is initially inserted by dormancy (IDLE) pattern; 2, the connection reconstruction under Radio Resource control (Radio Resource Control abbreviates RRC as) pattern; 3, switch (Handover); 4, down link (DL) data under the RRC-CONNECTED pattern arrive; 5, up link (UL) data under the RRC-CONNECTED pattern arrive.
Based on above five kinds of application scenarioss, can be divided into based on the access at random of competition with based on two types of non-competing accesses at random inserting at random.Wherein, can be applied to above five kinds of scenes based on the access at random of competition, and based on non-competing insert at random only be applied to switch with the RRC-CONNECTED pattern under the scene that arrives of DL data.
Fig. 2 be in the correlation technique based on the signaling process figure of random access procedure of competition, as shown in Figure 2, comprise following processing:
1, UE sends random access guiding (Random Access Preamble abbreviates RAP as) by Physical Random Access Channel (PRACH) to base station (eNode Base abbreviates eNB as) in UL;
2, eNB generates accidental access response (Random Access Response abbreviates RAR as) by media access control layer (MAC) on DL-SCH, and sends to UE;
3, UE scheduled transmission (Scheduled Transmission) on UL-SCH;
4, the eNB solution (Contention Resolution) that on DL-SCH, conflicts;
Fig. 3 be in the correlation technique based on the non-competing signaling process figure that inserts at random, as shown in Figure 3, comprise following processing:
1, eNB distributes RAP to give UE by dedicated signaling in DL;
2, UE sends RAP by PRACH to eNB in UL;
3, eNB generates RAR by MAC on DL-SCH, and sends to UE;
Be based on competition with based on the non-competing difference that inserts at random, the former RAP is that UE oneself selects, and the situation that many UE select same RAP simultaneously may take place, and needs competition RAP access base station, be assigned to terminal and the latter's RAP is the base station, need not to compete RAP and come access base station.
Based on competition insert step 2 at random and based on the non-competing step 3 of access at random in, in a single day terminal sends RAP, no matter be measurement clearance whether, all can monitor RAR at the response receive window, wherein, RAR sends to terminal by the base station on DL-SCH.The RAR that eNB sends to UE sends by medium access control layer protocol data cell (MACPDU), and uniform format.
Fig. 4 is the schematic diagram of MAC PDU structure in the correlation technique, and as shown in Figure 4, MACPDU is by a MAC head (MAC header), and one or more MAC accidental access responses (MAC RAR (s)) and optional (padding) form.Fig. 5 is the schematic diagram of MAC RAR structure in the correlation technique, as shown in Figure 5, MAC RAR orders (Timing Advance Command), uplink authorization (ULGrant) and interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Temporary C-RNTI) to be formed by four variable R, times in advance, and the length of MAC RAR form is 6 bytes (byte) of fixing.
For for the access at random of competition, when accidental access response receives successfully, UE need be provided with Temporary C-RNTI variable according to the Temporary C-RNTI value among the MAC RAR, simultaneously, sends Message3 according to the UL Grant that provides among the MAC RAR.For based on non-competing access at random, for for non-competing access at random, Temporary C-RNTI and UL Grant among the MAC RAR are actually otiose, for Temporary C-RNTI, in handoff scenario, UE distributes other C-RNTI at target BS; And under the RRC-CONNECTED pattern when the DL data arrive, UE itself just has C-RNTI, for UL Grant, when based on non-competing access at random success, do not need UL Grant to send Message3, when needing to retransmit RAP, do not need extra UL Grant directly to send yet by the PRACH channel based on non-competing access at random is unsuccessful, therefore, in MAC RAR, carry Temporary C-RNTI and UL Grant variable will cause the wasting of resources and signaling redundancy.
Summary of the invention
Consider in the correlation technique for based on proposing the present invention owing to carrying the wasting of resources that Temporary C-RNT variable and UL Grant variable cause and the problem of signaling redundancy among the non-competing MAC RAR that inserts at random, for this reason, main purpose of the present invention is to provide a kind of accidental access method, terminal, to solve the problems referred to above that exist in the correlation technique.
To achieve these goals, according to an aspect of the present invention, provide a kind of accidental access method.
Accidental access method according to the present invention comprises: terminal sends random access guiding RAP to the base station; Terminal receives the accidental access response message RAR that the base station sends by medium access control layer protocol data cell MACPDU, wherein, carry predetermined sign on first bit of first byte among the media access control layer accidental access response MAC RAR among the MAC PDU, predetermined sign is used to indicate whether MAC RAR is the MAC RAR of simple structure, be designated as under the situation that is in predetermined sign, also carry the timing advance command argument among the MAC RAR, perhaps also carry timing advance command argument and uplink grant variable.
Preferably, be designated as under the situation that is in predetermined sign, the MAC RAR of simple structure takies 4 bytes or takies 2 bytes.
Preferably, be designated as under the situation not in predetermined sign, MAC RAR is the MAC RAR of complete structure, wherein, also carries timing advance command argument, uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable among the MAC RAR of complete structure.
Preferably, be designated as under the situation not in predetermined sign, the MAC RAR of complete structure takies 6 bytes.
Preferably, the MAC RAR of all simple structures is arranged on after the MACR AR of all complete structures.
Preferably, terminal is after the base station sends RAP, and said method also comprises: the base station determines according to predetermined sign whether MAC RAR is the MAC RAR of simple structure.
Preferably, terminal receives the base station and passes through MAC PDU after the RAR that terminal sends, and said method also comprises: terminal is determined to read m MAC RAR, and determines that before m the MAC RAR i MAC RAR being arranged is the MACRAR of simple structure, m is more than or equal to 1, and i is more than or equal to 0 and less than m; Terminal reads m MAC RAR on the byte of corresponding resource blocks.
Preferably, the terminal MAC RAR that to determine i MAC RAR arranged before m the MAC RAR be simple structure comprises: the predetermined sign that the MAC RAR of the RAP of correspondence special use carried among m-1 MAC RAR before terminal read; Terminal is determined m the MAC RAR MAC RAR that before i MAC RAR to be arranged be simple structure according to the predetermined number that is that is designated.
Preferably, be designated under the situation that is predetermined, terminal comprises reading m MAC RAR on the byte of corresponding resource blocks: terminal is being carried on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+4) of Resource Block of all MAC RAR and is being read m MAC RAR; Perhaps, terminal reads m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block of all MAC RAR of carrying.
Preferably, be designated under the situation not predetermined, terminal comprises reading m MAC RAR on the byte of corresponding resource blocks: terminal reads m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying, perhaps, terminal reads m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying.
To achieve these goals, according to a further aspect in the invention, provide a kind of terminal.
Terminal according to the present invention comprises: sending module is used for sending random access guiding RAP to the base station; Receiver module, be used to receive the accidental access response message RAR that the base station sends by medium access control layer protocol data cell MAC PDU, wherein, carry predetermined sign on first bit of first byte among the media access control layer accidental access response MAC RAR among the MAC PDU, predetermined sign is used to indicate whether MAC RAR is the MAC RAR of simple structure, be designated as under the situation that is in predetermined sign, also carry the timing advance command argument among the MACRAR, perhaps also carry timing advance command argument and uplink grant variable.
Preferably, be designated as under the situation not in predetermined sign, MAC RAR is the MAC RAR of complete structure, wherein, carries timing advance command argument, uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable in addition among the MAC RAR of complete structure.
Preferably, terminal also comprises: determination module, and be used for determining to read m MAC RAR, and determine m the MAC RAR MAC RAR that before i MAC RAR to be arranged be simple structure, wherein, m is more than or equal to 1, and i is more than or equal to 0 and less than m; Read module is used for reading m MAC RAR on the byte of corresponding resource blocks.
Preferably, read module further comprises: first read module, described predetermined being designated under the situation that is, on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block that carries all MAC RAR, read described m MAC RAR; Second read module described predetermined being designated under the situation that is, reads described m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+4) of the Resource Block that carries all MAC RAR; Third reading delivery piece is used for reading described m MAC RAR stating predetermined being designated under the situation not on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+6) of the Resource Block that carries all MAC RAR; The 4th read module is used for reading described m MAC RAR stating predetermined being designated under the situation not on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+6) of the Resource Block that carries all MAC RAR.
By means of technical scheme of the present invention, in based on non-competing access at random, by in the MAC of MAC PDU RAR, not carrying interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI or uplink grant, solved in the correlation technique for based among the non-competing MAC RAR that inserts at random owing to carrying the wasting of resources that Temporary C-RNT variable causes and the problem of signaling redundancy, can save system resource, reduce the signaling redundancy.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of cellular radio communication system framework in the correlation technique;
Fig. 2 is based on the signaling process figure of random access procedure of competition in the correlation technique;
Fig. 3 is based on the non-competing signaling process figure that inserts at random in the correlation technique;
Fig. 4 is the schematic diagram of MAC PDU structure in the correlation technique;
Fig. 5 is the schematic diagram of MAC RAR structure in the correlation technique;
Fig. 6 is the flow chart of accidental access method of the example 1 of the embodiment of the invention;
Fig. 7 is the schematic diagram of MAC RAR after the optimization of the embodiment of the invention;
Fig. 8 is the flow chart of accidental access method of the example 2 of the embodiment of the invention;
Fig. 9 is the block diagram of the terminal of the embodiment of the invention.
Embodiment
Function was both stated
As mentioned above, for fear of the wasting of resources and signaling redundancy, the invention provides a kind of accidental access method, in technical scheme of the present invention, according to inserting situation at random based on competition with based on non-competing two kinds, MAC RAR form can be optimized: in based on non-competing access at random, can omit Temporary C-RNTI variable or UL Grant variable among the MAC RAR, can save 2 bytes or 4 bytes of MAC RAR like this, thereby save downlink radio resource or save the PDSCH resource that sends MAC RAR; In the accidental access response message based on competition, MAC RAR form remains unchanged.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
In the following description, for the purpose of explaining, a plurality of specific details have been described, to provide to thorough of the present invention.Yet, obviously, do not having can to realize the present invention under the situation of these specific detail yet, in addition, under the situation that does not deviate from the spirit and scope that claims illustrate, among following embodiment and the embodiment each details can be carried out various combinations.
Method embodiment
Example 1
Terminal and system are according to the protocol version (R8, R9) of its support, can be divided into terminal (R8 terminal) and the system (R8 system) that supports R8, terminal (R9 terminal) and the system (R9 system) that supports R9, this example is applicable to supports R8 and above system and terminal.
According to embodiments of the invention, a kind of accidental access method is provided, has been used for based on non-competing access at random, Fig. 6 is the flow chart according to example 1 accidental access method of the embodiment of the invention, as shown in Figure 6, comprise following processing (step S602-step S604):
Step S602, terminal sends random access guiding RAP to the base station; After the base station receives the RAP and preamble index that terminal sends, will know this RAP be base station assigns or UE oneself selection.
Step S604, terminal receives the RAR that the base station sends by MAC PDU, wherein, first byte among the MAC RAR of MAC PDU (preferably, can be first bit position of first byte) on carry predetermined sign, should predetermined sign be used to indicate whether MACRAR is the MAC RAR of simple structure, be designated as under the situation that is in predetermined sign, also carry the timing advance command argument (promptly among the MAC RAR, do not carry interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable and/or uplink grant variable), perhaps also carry timing advance command argument and uplink grant variable (that is, not carrying interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable).
Be designated as under the situation not in predetermined sign, MAC RAR is the MACRAR of complete structure, wherein, except carrying above-mentioned predetermined sign, also carry timing advance command argument, uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable among the MAC RAR of complete structure.
Need to prove, in the present embodiment, if the RAP that terminal sends is the base station specific assigned, then the base station should be scheduled to sign to be set to indicate MAC RAR be the MAC RAR of simple structure, select if the RAP that terminal sends is a terminal oneself, then the base station should be scheduled to identify that to be set to indicate MAC RAR be the MAC RAR of complete structure.
In addition, be designated as (that is, RAP is under the situation of base station specific assigned) under the situation that is in predetermined sign, MAC RAR is that simple structure takies 4 bytes or 2 bytes.Be designated as (that is, being under the situation of terminal oneself selection at RAP) under the situation not in predetermined sign, MAC RAR is that complete structure takies 6 bytes.
After step S604, also need to carry out following processing: 1, terminal is determined to read m MAC RAR, and determines m the MAC RAR MAC RAR that before i MACRAR to be arranged be simple structure, and wherein, m is more than or equal to 1, and i is more than or equal to 0 and less than m; Particularly, terminal at first needs to read the predetermined sign of carrying among preceding m-1 the MAC RAR; And according to the predetermined sign that the reads MAC RAR that to determine i MAC RAR arranged before m the MAC RAR be simple structure, the number of definite i thus.2, terminal reads m MAC RAR on the byte of corresponding resource blocks.
In actual applications, there are two kinds of situations in terminal when m the MAC RAR that determines to read, situation one, the situation (that is, the RAP of terminal transmission is the base station specific assigned) that predetermined sign indication MAC RAR is the MACRAR of simple structure; Situation two, the situation (that is, the RAP of terminal transmission is that terminal oneself is selected) that predetermined sign indication MAC RAR is the MAC RAR of complete structure.Processing to situation one and situation two describes respectively below.
In situation once, terminal comprises reading m MACRAR on the byte of corresponding resource blocks: terminal reads m MACRAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+4) of the Resource Block of all MAC RAR of carrying; Perhaps, terminal reads m MACRAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block of all MAC RAR of carrying.
Situation two times, terminal comprises reading m MACRAR on the byte of corresponding resource blocks: terminal reads m MACRAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying; Perhaps terminal reads m MACRAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying.
Below, be that R8 and later system, terminal are example with the protocol version of supporting, technique scheme of the present invention is elaborated.The processing that terminal inserts wireless telecommunication system at random may further comprise the steps:
Step 1, terminal send random access guiding RAP to the base station on certain random access time slot of radio frames;
Particularly, the L2 of terminal (MAC layer, rlc layer, PDCP layer)/L3 (rrc layer) indication L 1 (PHY layer) sends RAP, corresponding Radio Network Temporary Identifier (RA-RNTI), preamble index (preamble index) etc. by Physical Random Access Channel (PRACH) resource of selecting.
Wherein, 64 altogether of RAP, the RAP that is used to compete is nRAP altogether, numbering is from 0 to nRAP-1; It is individual for (64-nRAP) altogether to be used for non-competing RAP, and numbering is from nRAP to 64.
The RAP that terminal sends to the base station may be that the base station is assigned to (numbering is the RAP from nRAP to 64) of terminal by dedicated channel with it, the MAC oneself that also may be UE selects, and its range of choice is the optional RAP (numbering be RAP from 0 to nRAP-1) of base station in all the UE broadcasting in the sub-district of broadcast channel the inside.
Step 2, base station send accidental access response message to terminal by MAC PDU on DL-SCH;
Particularly, the base station receives RAP and the preamble index that terminal sends, and just can determine that this lead code is that base station assigns is given terminal or UE oneself selection according to this RAP and preamble index.First bit position (being taken as the S variable) of base station first byte in the MAC of this RAP correspondence RAR goes up whether the MAC RAR of this RAP correspondence of sign is simple structure simultaneously.When this RAP was the RAP of terminal-specific, S was made as 1, and its corresponding MAC RAR is simple structure (4 or 2 bytes dispense TemporaryC-RNTI variable or UL Grant variable); When this RAP was terminal oneself selection, S was made as 0, and its corresponding MAC RAR is complete structure (6 byte).
If being base station assigns, RAP give terminal (promptly, this insert at random be based on non-competing), so Dui Ying MAC RAR is simple structure, save 2 bytes or 4 bytes, can in MAC RAR, omit Temporary C-RNTI variable or UL Grant variable, the MAC RAR form of the amended Temporary of dispensing C-RNTI variable and the amended MAC RAR form that dispenses Temporary C-RNTI variable and UL Grant variable as shown in Figure 7, the position of these 4 byte MAC RAR does not have specific (special) requirements.If RAP is UE MAC to be selected (that is, this inserts at random and is based on competition), so Dui Ying MAC RAR is a complete structure, reservation Temporary C-RNTI variable and UL Grant variable in MAC RAR.
Step 3, terminal are received accidental access response message RAR in the response receive window after, determine by RA-RNTI and the RAPID that comprises in the accidental access response message that is relatively local and that receive whether these two signs are desired value.
Particularly, if the RA-RNTI (on PDCCH) of the accidental access response message RAR that terminal is received is corresponding with the RA-RNTI (on PRACH) of the random access resource of terminal transmission random access guiding, and the sign RAPID of the random access guiding in the accidental access response message RAR (in the PDU of MAC layer) is complementary with the index (RPI) of the random access guiding that terminal sends, then terminal can be determined to have received correct accidental access response message, and begins to read and comprise the content of son head (sub-header) corresponding MAC RAR of RAPID.In this step, comprise following two kinds of situations:
Situation 1
(index (RPI) of the random access guiding that RAPID that the individual E/T/RAPID MAC sub-header of 1≤m≤n) is comprised and terminal send is complementary to suppose m, and this RAP is a specific assigned, S is made as 1 so, and then terminal need read m MAC RAR information.
First bit of first byte of terminal by reading each MAC RAR determines that i was arranged among this accidental access response message RAR before m MAC RAR (0≤i＜m) individual MAC RAR is the RAP corresponding to specific assigned.
(1) (dispense TemporaryC-RNTI variable and UL Grant variable) when the MAC of simple structure RAR is 2 bytes, terminal must read the MAC RAR information of oneself to (i*2+ (m-i-1) * 6+2) individual byte at (i*2+ (m-i-1) the * 6+1) of carrying MAC RAR Resource Block.
Timing Advance order among the MAC RAR that terminal processes is received, and indication physical layer, and think to insert at random and finish.
(2) (only dispense Temporary C-RNTI variable) when the MAC of simple structure RAR is 4 bytes, then terminal must read the MAC RAR information of oneself to (i*4+ (m-i-1) * 6+4) individual byte at (i*4+ (m-i-1) the * 6+1) of the Resource Block that carries all MAC RAR;
The UL Grant value of receiving is ignored in Timing Advance order among the MAC RAR that terminal processes is received, and the indication physical layer, and thinks to insert at random and finish.
Situation 2
(index (RPI) of the random access guiding that RAPID that the individual E/T/RAPID MAC sub-header of 1≤m≤n) is comprised and terminal send is complementary to suppose m, and this RAP is that terminal oneself is selected, S is 0 so, and then terminal need read m MAC RAR information.
First bit of first byte of terminal by reading each MAC RAR determines that i was arranged in this accidental access response message before m MAC RAR (0≤i＜m) individual MAC RAR is the RAP corresponding to specific assigned.
(1) (dispense TemporaryC-RNTI variable and UL Grant variable) when the MAC of simple structure RAR is 2 bytes, terminal must read the MAC RAR information of oneself to (i*2+ (m-i-1) * 6+6) individual byte at (i*2+ (m-i-1) the * 6+1) of carrying MAC RAR Resource Block.
Timing Advance order and ULgrant value among the MAC RAR that terminal processes is received, and indication physical layer.In addition, terminal also need be set Temporary C-RNTI variable according to the Temporary C-RNTI value among the MAC RAR, and after having carried out above-mentioned processing, terminal just can send message3 at UL-SCH.
(2) (only dispense Temporary C-RNTI variable) when MAC RAR is the simple structure of 4 bytes, then terminal must read the MAC RAR information of oneself to (i*4+ (m-i-1) * 6+6) individual byte at (i*4+ (m-i-1) the * 6+1) of the Resource Block that carries all MAC RAR;
Timing Advance order among the MAC RAR that terminal processes is received, and indication physical layer.In addition, terminal also need be set Temporary C-RNTI variable according to the Temporary C-RNTI value among the MAC RAR, and after having carried out above-mentioned processing, terminal just can send message3 at UL-SCH according to the UL grant among the MAC RAR that receives.
Need to prove,, can retransmit RAP, determine to initiate once more next possible access at random if terminal is not received correct accidental access response message.
Example 2
This example is applicable to supports R9 and above system and terminal.
According to embodiments of the invention, a kind of accidental access method is provided, has been used for based on non-competing access at random, Fig. 8 is the flow chart according to the accidental access method of the example 2 of the embodiment of the invention, as shown in Figure 8, comprise following processing (step S802-step S804):
Step S802, terminal sends random access guiding RAP to the base station;
Step S804, terminal receives the RAR that the base station sends by MAC PDU, wherein, carry predetermined sign on first byte among the MAC RAR among the MAC PDU, predetermined sign is used to indicate whether this MAC RAR is the MAC RAR of simple structure, be designated as under the situation that is in predetermined sign, also carry the timing advance command argument among the MAC RAR, perhaps also carry timing advance command argument and uplink grant variable.
Be designated as under the situation not in predetermined sign, MAC RAR is the MACRAR of complete structure, wherein, except carrying above-mentioned predetermined sign, also carry timing advance command argument, uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable among the MAC RAR of complete structure.
Need to prove, in the present embodiment, if the RAP that terminal sends is that base station specific assigned and this terminal are the R9 terminal, then the base station should be scheduled to sign to be set to indicate MAC RAR be the MAC RAR of simple structure, if this terminal is the R8 terminal, then the RAP that no matter sends is that terminal oneself is selected or the base station specific assigned, and the base station should be scheduled to all identify that to be set to indicate MAC RAR be the MAC RAR of complete structure; If this terminal is the R9 terminal, and the RAP that sends is that terminal oneself is selected, and the base station should be scheduled to identify that to be set to indicate MAC RAR be the MAC RAR of complete structure.
In addition, be designated as under the situation that is (promptly in predetermined sign, terminal is the R9 terminal, and RAP is under the situation of base station specific assigned), MAC RAR is that simple structure takies 4 bytes or 2 bytes, is designated as in predetermined sign that (that is, terminal is the R9 terminal under the situation not, and RAP is that terminal oneself is selected or terminal is under the situation of R8 terminal), MAC RAR is that complete structure takies 6 bytes.
Preferably, before execution in step S804, the MAC RAR of all simple structures is arranged on after the MAC RAR of all complete structures.
After step S804, can also comprise following processing: 1, terminal is determined to read m MAC RAR, and determines m the MAC RAR MAC RAR that before i MACRAR to be arranged be simple structure, and wherein, m is more than or equal to 1, and i is more than or equal to 0 and less than m; Particularly, terminal at first needs to read the predetermined sign of carrying among preceding m-1 the MAC RAR; And according to the predetermined sign that the reads MAC RAR that to determine i MAC RAR arranged before m the MAC RAR be simple structure, the number of definite i thus.2, terminal reads m MAC RAR on the byte of corresponding resource blocks.
In actual applications, terminal has three kinds of situations when m the MAC RAR that determines to read, situation one, the RAP that terminal sends is that base station specific assigned and this terminal are the situation (that is, base station should be scheduled to identify be set to indicate MAC RAR be the situation of the MAC RAR of simple structure) of R9 terminal; Situation two, terminal are the situations (that is, the RAP that no matter sends is that terminal oneself is selected or the base station specific assigned, base station all should be scheduled to identify to be set to indicate MAC RAR be the situation of the MAC RAR of complete structure) of R8 terminal; Situation three, terminal are the R9 terminal, and the RAP that sends is terminal oneself situation about selecting (that is, base station should be scheduled to identify be set to indicate MAC RAR be the situation of the MAC RAR of complete structure).Processing to situation one, situation two and situation three describes respectively below.
In situation once, terminal reads m MACRAR and comprises on the byte of corresponding resource blocks: terminal reads m MAC RAR at (i*4+ (m-i-1) the * 6+1) of all MAC RAR Resource Block of carrying to (i*4+ (m-i-1) * 6+4) individual byte; Perhaps, terminal reads m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+2) of the Resource Block of all MAC RAR of carrying.
Situation two or situation three times, terminal reads m MAC RAR and comprises on the byte of corresponding resource blocks: terminal reads m MAC RAR at ((m-1) * 6+1) of the Resource Block of all MAC RAR of carrying to ((m-1) * 6+6) individual byte.
Below, be that R9 and later system are example with the protocol version of supporting, technique scheme of the present invention is elaborated.The processing that terminal inserts wireless telecommunication system at random may further comprise the steps:
Step 1, terminal send random access guiding RAP to the base station on certain random access time slot of radio frames;
Particularly, the L2 of terminal (MAC layer, rlc layer, PDCP layer)/L3 (rrc layer) indication L1 (PHY layer) sends RAP, corresponding Radio Network Temporary Identifier (RA-RNTI), preamble index (preamble index) etc. by Physical Random Access Channel (PRACH) resource of selecting.
Wherein, 64 altogether of RAP, the RAP that is used to compete is nRAP altogether, numbering is from 0 to nRAP-1; It is individual for (64-nRAP) altogether to be used for non-competing RAP, and numbering is from nRAP to 64.
The RAP that terminal sends to the base station may be that the base station is assigned to (numbering is the RAP from nRAP to 64) of terminal by dedicated channel with it, the MAC oneself that also may be UE selects, and its range of choice is the optional RAP (numbering be RAP from 0 to nRAP-1) of base station in all the UE broadcasting in the sub-district of broadcast channel the inside.
Need to prove that because R8 does not support the form optimization of MAC RAR, no matter whether the RAP that the R8 terminal sends is the base station appointment, its corresponding M AC RAR is 6 bytes.Because the protocol version that the base station can distinguishing terminal be supported, when the RAR of R9 terminal transmission is the base station appointment, need the R9 network in distributing special-purpose RAP order, add extra information indication corresponding to the response message of this RAP in MAC RAR only need 4 bytes or 2 bytes, and the R8 terminal in the R9 network because can not receive extraneous information, thereby MAC RAR form remains unchanged.
Step 2, base station send accidental access response message to terminal by MAC PDU on DL-SCH;
The base station receives RAP, the preamble index that terminal sends, and will determine that MAC RAR is brief structure or complete structure in this lead code corresponding response message.
Because R8 does not support the form optimization of MAC RAR, no matter whether the RAP that the R8 terminal sends is the base station appointment, its corresponding M AC RAR is 6 bytes.Because the protocol version that the base station can distinguishing terminal be supported, the RAR that sends when the R9 terminal is base station when specifying, and needs the R9 network to inform that terminal is brief structure or complete structure corresponding to MAC RAR in the response message of this RAP.Because the R8 network is not provided with first bit position of first byte of each MACRAR, and the R9 terminal can be ignored this bit position in the R8 network, thereby MAC RAR form remains unchanged.
Inform that message can followingly be provided with: first bit of first byte (being taken as the S variable) identifies whether the MAC RAR of this RAP correspondence is simple structure in the MAC of this RAP correspondence RAR.When S is made as 1, its corresponding MAC RAR is simple structure; When this S is made as 0, its corresponding MAC RAR is a complete structure.
If RAP is base station assigns (i.e. this insert at random be based on non-competing), and be the R9 terminal in the R9 network, S among the MAC RAR of this RAP correspondence is made as 1 so, corresponding MAC RAR is simple structure, the MACRAR of simple structure can be placed on after all 6 byte MAC RAR simultaneously.Otherwise the S among the MAC RAR of this RAP correspondence is made as 0, and corresponding MAC RAR is the complete structure of the UL Grant variable of the Temporary C-RNTI variable that keeps 2 byte lengths and 20bit length.
Step 3, terminal are received accidental access response message RAR in the response receive window after, determine by RA-RNTI and the RAPID that comprises in the accidental access response message that is relatively local and that receive whether these two signs are desired value.
Particularly, if the RA-RNTI of the accidental access response message that terminal is received (on PDCCH) is corresponding with the RA-RNTI (on PRACH) of the random access resource of terminal transmission random access guiding, and the sign RAPID of the random access guiding in the accidental access response message (in MAC layer PDU) is complementary with the index (RPI) of the random access guiding that terminal sends, terminal just can be determined to have received correct accidental access response message so, and begins to read and the content that comprises the corresponding MACRAR of sub-header of RAPID.In this step, comprise following three kinds of situations:
Situation 1
(index (RPI) of the random access guiding that RAPID that the individual E/T/RAPID MAC sub-header of 1≤m≤n) is comprised and terminal send is complementary to suppose m, and this RAP is a specific assigned, and be the R9 terminal in the R9 network, S among the MACRAR of this RAP correspondence is made as 1 so, and then terminal need read m MAC RAR information.
First bit of first byte of terminal by reading each MAC RAR determine that i was arranged in this accidental access response message before m MAC RAR (0≤i＜m) individual MAC RAR is simple structure,
(1) (dispense TemporaryC-RNTI variable and UL Grant variable) when the MAC of simple structure RAR is 2 bytes, terminal must read the MAC RAR information of oneself to (i*2+ (m-i-1) * 6+2) individual byte at (i*2+ (m-i-1) the * 6+1) of carrying MAC RAR Resource Block.
Subsequently, the Timing Advance order among the MAC RAR that terminal processes is received, and indication physical layer, and think to insert at random and finish.
(2) (only dispense Temporary C-RNTI variable) when MAC RAR is the simple structure of 4 bytes, then terminal must read the MAC RAR information of oneself to (i*4+ (m-i-1) * 6+4) individual byte at (i*4+ (m-i-1) the * 6+1) of the Resource Block that carries all MAC RAR;
Subsequently, the UL Grant value of receiving is ignored in the Timing Advance order among the MAC RAR that terminal processes is received, and the indication physical layer, and thinks to insert at random and finish.
Situation 2
(index (RPI) of the random access guiding that RAPID that the individual E/T/RAPID MAC sub-header of 1≤m≤n) is comprised and terminal send is complementary to suppose m, and this RAP is a specific assigned, but not the R9 terminal in the R9 network, S among the MAC RAR of this RAP correspondence is 0 so, and then terminal need read m MAC RAR information.
Terminal must read the MAC RAR information of oneself to ((m-1) * 6+6) individual byte at ((m-1) * 6+1) of all MAC RAR Resource Block of carrying.
Subsequently, Temporary C-RNTI value and the UL grant value received are ignored in the Timing Advance order among the MAC RAR that terminal processes is received, and the indication physical layer, and think to insert at random and finish.
Situation 3
(index (RPI) of the random access guiding that RAPID that the individual E/T/RAPID MAC sub-header of 1≤m≤n) is comprised and terminal send is complementary to suppose m, and this RAP is that terminal oneself is selected, S among the MAC RAR of this RAP correspondence is 0 so, and then terminal need read m MAC RAR information.
Terminal must read the MAC RAR information of oneself to ((m-1) * 6+6) individual byte at ((m-1) * 6+1) of all MAC RAR Resource Block of carrying.
Subsequently, Timing Advance order among the MAC RAR that terminal processes is received, and indication physical layer, also need set Temporary C-RNTI variable according to the Temporary C-RNTI value among the MAC RAR, after having carried out above-mentioned processing, terminal just can send message3 at UL-SCH according to the UL grant that provides among the MAC RAR.
If terminal is not received correct accidental access response message, can retransmit RAP, determine to initiate once more next possible access at random.
Device embodiment
According to embodiments of the invention, a kind of terminal is provided, Fig. 9 is the block diagram according to the terminal of the embodiment of the invention, as shown in Figure 9, comprises sending module 90, receiver module 92.Below above-mentioned module of the present invention is elaborated.
Particularly, sending module 90 is used for sending random access guiding RAP to the base station; Receiver module 92 is used to receive the RAR that described base station sends by MAC PDU, wherein, carry predetermined sign on first byte among the media access control layer accidental access response MAC RAR among the MAC PDU, predetermined sign is used to indicate whether MAC RAR is the MAC RAR of simple structure, be designated as under the situation that is in predetermined sign, also carry the timing advance command argument among the MAC RAR, perhaps also carry timing advance command argument and uplink grant variable.Be designated as under the situation not in predetermined sign, MAC RAR is the MAC RAR of complete structure, wherein, carries timing advance command argument, uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable in addition among the MAC RAR of complete structure.
Need to prove that RAP is under the situation of base station specific assigned, MAC RAR takies 4 bytes or 2 bytes.At RAP is that MACRAR takies 6 bytes under the situation of terminal oneself selection.
If terminal and system are for supporting R8 and above system and terminal, after then receiver module 92 receives the RAR of base station by MAC PDU transmission, also need to carry out following processing:
1, terminal really the cover half piece determine to read m MAC RAR, and determine m the MAC RAR MAC RAR that before i MAC RAR to be arranged be simple structure, wherein, m is more than or equal to 1, i is more than or equal to 0 and less than m; Particularly, terminal at first needs to read the predetermined sign of carrying among preceding m-1 the MAC RAR; And according to the predetermined sign that the reads MAC RAR that to determine i MAC RAR arranged before m the MAC RAR be simple structure, the number of definite i thus.2, the read module of terminal reads m MAC RAR on the byte of corresponding resource blocks.
In actual applications, there are two kinds of situations in terminal cover half piece really when m the MACRAR that determines to read, situation one, the situation (that is, the RAP of terminal transmission is the base station specific assigned) that predetermined sign indication MAC RAR is the MAC RAR of simple structure; Situation two, the situation (that is, the RAP of terminal transmission is that terminal oneself is selected) that predetermined sign indication MAC RAR is the MAC RAR of complete structure.Processing to situation one and situation two describes respectively below.
In situation once, comprise reading m MAC RAR on the byte of corresponding resource blocks: first read module of terminal reads m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+4) of the Resource Block of all MAC RAR of carrying.Perhaps, second read module of terminal reads m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block of all MAC RAR of carrying.
Situation two times, comprise reading m MAC RAR on the byte of corresponding resource blocks: the third reading delivery piece of terminal reads m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying.
If terminal and system then can be arranged on the MAC RAR of all simple structures after the MAC RAR of all complete structures for supporting R9 and above system and terminal.
Subsequently, also need to carry out following processing:
1, terminal really the cover half piece determine to read m MAC RAR, and determine m the MAC RAR MAC RAR that before i MAC RAR to be arranged be simple structure, wherein, m is more than or equal to 1, i is more than or equal to 0 and less than m; Particularly, terminal at first needs to read the predetermined sign of carrying among preceding m-1 the MAC RAR; And according to the predetermined sign that the reads MAC RAR that to determine i MAC RAR arranged before m the MAC RAR be simple structure, the number of definite i thus.2, the read module of terminal reads m MAC RAR on the byte of corresponding resource blocks.
In actual applications, terminal cover half piece really has three kinds of situations when m the MACRAR that determines to read, situation one, the RAP that terminal sends is that base station specific assigned and this terminal are the situation (that is, base station should be scheduled to identify be set to indicate MAC RAR be the situation of the MAC RAR of simple structure) of R9 terminal; Situation two, terminal are the situations (that is, the RAP that no matter sends is that terminal oneself is selected or the base station specific assigned, base station all should be scheduled to identify to be set to indicate MAC RAR be the situation of the MAC RAR of complete structure) of R8 terminal; Situation three, terminal are the R9 terminal, and the RAP that sends is terminal oneself situation about selecting (that is, base station should be scheduled to identify be set to indicate MAC RAR be the situation of the MAC RAR of complete structure).Processing to situation one, situation two and situation three describes respectively below.
In situation once, first read module of terminal reads m MAC RAR and comprises on the byte of corresponding resource blocks: terminal reads m MAC RAR at (i*4+ (m-i-1) the * 6+1) of all MAC RAR Resource Block of carrying to (i*4+ (m-i-1) * 6+4) individual byte.Perhaps, second read module of terminal reads m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block that is carrying all MAC RAR.
Situation two or situation three times, the 4th read module of terminal reads m MAC RAR and comprises on the byte of corresponding resource blocks: terminal reads m MAC RAR at ((m-1) * 6+1) of the Resource Block of all MAC RAR of carrying to ((m-1) * 6+6) individual byte.
Need to prove, under the situation that does not deviate from the spirit and scope that claims illustrate, can carry out various changes and combination above-mentioned each module.
In sum, by means of technical scheme of the present invention, in based on non-competing access at random, by in the MAC of MAC PDU RAR, not carrying interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, solved in the correlation technique for based among the non-competing MACRAR that inserts at random owing to carrying the wasting of resources that Temporary C-RNT variable causes and the problem of signaling redundancy, can save system resource, reduce the signaling redundancy.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (14)

1. an accidental access method is characterized in that, described method comprises:
Terminal sends random access guiding RAP to the base station;
Described terminal receives the accidental access response message RAR that described base station sends by medium access control layer protocol data cell MAC PDU, wherein, first bit on first byte among the media access control layer accidental access response MAC RAR among the described MACPDU carries predetermined sign, described predetermined sign is used to indicate whether described MAC RAR is the MAC RAR of simple structure, be designated as under the situation that is in described predetermined sign, also carry the timing advance command argument among the described MAC RAR, perhaps also carry described timing advance command argument and uplink grant variable.
2. method according to claim 1 is characterized in that, is designated as under the situation that is in described predetermined sign, and the MAC RAR of described simple structure takies 4 bytes or takies 2 bytes.
3. method according to claim 1, it is characterized in that, be designated as under the situation not in described predetermined sign, also carry described timing advance command argument, described uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable among the MAC RAR of complete structure.
4. method according to claim 3 is characterized in that, is designated as under the situation not in described predetermined sign, and the MAC RAR of described complete structure takies 6 bytes.
5. according to each described method in the claim 1 to 4, it is characterized in that, the MAC RAR of all simple structures is arranged on after the MAC RAR of all complete structures.
6. according to each described method in the claim 1 to 4, it is characterized in that described terminal is after described base station sends RAP, described method also comprises:
The MAC RAR that described MAC RAR is described simple structure is determined according to described predetermined sign in described base station.
7. method according to claim 6 is characterized in that, described terminal receives described base station and passes through MAC PDU after the described RAR that described terminal sends, and described method also comprises:
Described terminal is determined to read m MAC RAR, and determines described m the MAC RAR MAC RAR that before i MAC RAR to be arranged be described simple structure, and wherein, m is more than or equal to 1, and i is more than or equal to 0 and less than m;
Described terminal reads described m MACRAR on the byte of corresponding resource blocks.
8. method according to claim 7 is characterized in that, the MAC RAR that it is described simple structure that described terminal determines before described m the MAC RAR i MAC RAR arranged comprises:
The described predetermined sign of carrying corresponding to the MAC RAR of special-purpose RAP among m-1 MAC RAR before described terminal reads;
Described terminal determines that according to the described predetermined number that is that is designated before described m the MAC RAR i MAC RAR being arranged is the MACRAR of described simple structure.
9. method according to claim 8 is characterized in that, described predetermined being designated under the situation that is, described terminal reads m MAC RAR and comprises on the byte of corresponding resource blocks:
Described terminal reads described m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block of all MAC RAR of carrying; Perhaps
Described terminal reads described m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+4) of the Resource Block of all MAC RAR of carrying.
10. method according to claim 8 is characterized in that, described predetermined being designated under the situation not, described terminal reads m MAC RAR and comprises on the byte of corresponding resource blocks:
Described terminal reads described m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying; Perhaps
Described terminal reads described m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+6) of the Resource Block of all MAC RAR of carrying.
11. a terminal is characterized in that, comprising:
Sending module is used for sending random access guiding RAP to the base station;
Receiver module, be used to receive the accidental access response message RAR that described base station sends by medium access control layer protocol data cell MAC PDU, wherein, carry predetermined sign on first bit of first byte among the media access control layer accidental access response MAC RAR among the described MAC PDU, described predetermined sign is used to indicate whether described MAC RAR is the MAC RAR of simple structure, be designated as under the situation that is in described predetermined sign, also carry the timing advance command argument among the described MAC RAR, perhaps also carry described timing advance command argument and uplink grant variable.
12. terminal according to claim 11, it is characterized in that, be designated as under the situation not in described predetermined sign, the MAC RAR that described MAC RAR is a complete structure, wherein, carry among the MAC RAR of described complete structure also have described timing advance command argument, described uplink grant variable, interim Cell Radio Network Temporary Identifier/Identity, Cell-RNTI variable.
13. terminal according to claim 12 is characterized in that, described terminal also comprises:
Determination module is used for determining to read m MAC RAR, and determines described m the MAC RAR MAC RAR that before i MAC RAR to be arranged be described simple structure, and wherein, m is more than or equal to 1, and i is more than or equal to 0 and less than m;
Read module is used for reading described m MAC RAR on the byte of corresponding resource blocks.
14. terminal according to claim 13 is characterized in that, described read module further comprises:
First read module described predetermined being designated under the situation that is, reads described m MAC RAR on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+2) of the Resource Block that carries all MAC RAR;
Second read module described predetermined being designated under the situation that is, reads described m MAC RAR on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+4) of the Resource Block that carries all MAC RAR;
Third reading delivery piece is used for reading described m MAC RAR stating predetermined being designated under the situation not on the individual byte of (i*2+ (m-i-1) * 6+1) individual byte to the (i*2+ (m-i-1) * 6+6) of the Resource Block that carries all MAC RAR.
The 4th read module is used for reading described m MAC RAR stating predetermined being designated under the situation not on the individual byte of (i*4+ (m-i-1) * 6+1) individual byte to the (i*4+ (m-i-1) * 6+6) of the Resource Block that carries all MAC RAR.
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