CN101242397B - A realization method for downlink protocol data unit of media access control layer - Google Patents
A realization method for downlink protocol data unit of media access control layer Download PDFInfo
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Abstract
The invention relates to an implementation method for a media access control layer downlink protocol data unit, comprising the steps: (1) taking an RLC PDU in an MAC-d entity as an MAC-d SDU, generating an MAC-d PDU, not adding MAC-d head information when generated and not performing logic channel C/T multiplexing as an MAC-hs SDU; (2) multiplexing the MAC-hs SDU from one logic channel or different logic channels in the MAC-hs entity, and adding the corresponding head information to generate the MAC-hs PDU, the head information including a transmission sequence number, one or more logic channel marks, and subsection marks and a plurality of information groups under each logic channel mark, each information group including a domain mark information and length information concerned with each MAC-hs SDU.
Description
Technical field
The present invention relates to the implementation method of medium access control layer protocol data cell in the wireless communication system, relate in particular to the implementation method of the medium access control layer protocol data cell that is applicable to the high data rate Packet Service.
Background technology
Insert the wireless chain control layer of (WCDMA) system wireless Access Network (RAN) at the 3G (Third Generation) Moblie WCDMA; Respective wireless controlling links layer protocol data cell (RLC PDU) is preset regular length, generates after wireless chain control layer service data unit (RLC SDU) is carried out segmentation/serial connection/filling processing and increases corresponding header according to said preset length.
RLC PDU is called media access control layer service data unit (MAC SDU) after wireless chain control layer sends to media access control layer.Supporting high speed downlink packet to insert the media access control layer of (HSDPA) function, the MAC-d entity is positioned at radio network controller (RNC), and MAC SDU generates MAC-d PDU through the multiplexing back of logic channel C/T.MAC-d PDU sends to the MAC-hs entity of base station (Node B) through high speed descending sharing channel Frame Protocol (HS-DSCH FP), becomes MAC-hs SDU.MAC-hs SDU multiplexing and add the MAC-hs header after generate MAC-hsPDU.The process that above-mentioned generation MAC-hs PDU is transmission block TB is as shown in Figure 1.Wherein, have now and be mapped to the MAC-d PDU on the high speed downlink shared channel HS-DSCH, promptly the form of MAC-hs SDU frame structure is as shown in Figure 2.
Fig. 3 is existing MAC-hs PDU frame structure sketch map.MAC-hs PDU frame comprise header and multiplexing after MAC-hs SDU payload.Wherein comprise following field in the header:
Version Flag (VF, version sign): 1bit, this field is that MAC-hs PDU form provides extended capability.This field value is taken as 0 in existing version, and value 1 keeps need not;
Queue Identifier (Queue ID, queue identity): 3bit, this field is used to indicate the sign of recipient's reorder queue;
Transmission Sequence Number (TSN, transmission sequence number): 6bit, this field is provided at the transmission sequence number on the high speed descending sharing channel, and the purpose that is used to reorder is to support the delivery function according to the order of sequence to the upper-layer protocol layer;
Size Index Identifier (SID, length index sign): 6bit, this field is used to represent the length of one group of continuous MAC-d PDU.SID is disposed respectively each Queue ID by high level;
Number of MAC-d PDUs (N): MAC-d PDU number, 7bit, this field is used to represent have the number of the continuous MAC-d PDU of equal length;
Flag (F, domain identifier): 1bit, this field is used for being illustrated in the MAC-hs header and whether also has more field, and F is made as and represented one group of SID of followed, N, F field at 0 o'clock; Be made as and represented followed MAC-hs SDU at 1 o'clock.The number that in a TTI, is set to 0 F is 7 to the maximum.
For each user equipment (UE); In a Transmission Time Interval TTI, can send a MAC-hs PDU at most; The length of MAC-hs header is variable, and the MAC-hs SDU that in a TTI, is multiplexed into a MAC-hs PDU belongs to same reorder queue.
In order on the basis of high-speed downlink packet access HSDPA and high speed uplink packet access HSUPA, further to improve data rate and spectrum efficiency, the 3G (Third Generation) Moblie partnership projects is organized 3GPP (The 3rd Generation Partnership Project) to propose high-speed packet and is inserted the HSPA evolution items.In this project, for the improvement of radio interface layer 2 scheme of variable-length protocol data unit of wireless links control layer has been proposed, the main thought of this scheme is: wireless links control layer affirmation mode is supported protocol Data Unit length flexibly; Media access control layer MAC-hs entity is supported the segmentation to RLC PDU; Whether media access control layer MAC-e and MAC-es support further research is treated in the segmentation of RLC PDU.
Summary of the invention
The technical problem that the present invention will solve provides a kind of implementation method of descending protocol data unit of media access control layer, makes media access control layer MAC-hs entity can support the segmentation to protocol data unit of wireless links control layer RLC PDU.
A kind of implementation method of descending protocol data unit of media access control layer comprises the steps:
(1) with protocol data unit of wireless links control layer RLC PDU at media access control layer MAC-d entity as media access control layer service data unit MAC-d SDU; Generate medium access control layer protocol data cell MAC-d PDU; Additional MAC-d header when generating said MAC-d PDU, it is multiplexing not carry out logic channel C/T;
(2) said MAC-d PDU gets involved key-course service data unit MAC-hs SDU at media access control layer MAC-hs entity as medium; To carry out multiplexing at the MAC-hs entity from the MAC-hs SDU of same logic channel or Different Logic channel; And additional corresponding header generates descending protocol data unit of media access control layer MAC-hs PDU; Comprise branch segment identification and several information sets under transmission sequence number, one or more Logic Channel Identifier and each Logic Channel Identifier in the said header, comprise domain identifier information in each information sets and about the length information of each MAC-hs SDU.
The said descending protocol data unit of media access control layer MAC-hs PDU that generates in the step (2); Except that comprise header and multiplexing after MAC-hs SDU payload; In order to adapt to the length of transmission block TB, further comprise: the filler that the MAC-hs SDU payload end after multiplexing adds.
Carry out in the step (2) when multiplexing; If described in the said MAC-h step (2) in the MAC-hs PDU header for each MAC-hs PDU each multiplexing logic channel a transmission sequence number all is set, the corresponding transmission sequence number of each Logic Channel Identifier this moment.
S SDU is continuous at the MAC-hs of same logic channel SDU then from same logic channel.Only comprise a transmission sequence number in the said MAC-hs PDU header that generates in the step (2).
Only comprise a transmission sequence number in the said MAC-hs PDU header that generates in the step (2).
In the said step (2) each MAC-hs PDU multiplexing MAS-hs SDU from one or more priority queries; Each priority query comprises one or more logic channels; In the MAC-hs PDU header for each MAC-hs PDU each multiplexing priority query a transmission sequence number all is set; The corresponding transmission sequence number of each priority query this moment and priority query's sign; The corresponding one or more Logic Channel Identifiers of each transmission sequence number, wherein each Logic Channel Identifier is to corresponding logic channel in should priority query.
In the said step (2) in the MAC-hs PDU header length information of each MAC-hs SDU be a length mark, be used to represent the length of a multiplexing MAC-hs SDU whether be maximum RLC PDU length.
Said length mark is 1 bit, supports a maximum segment length, when this value is a value, in header, adds a MAC-hs SDU length mark information in this information sets, expression the length of a multiplexing MAC-hs SDU; When getting another value, the length of expression MAC-hs SDU is maximum RLC PDU length.
Said length mark is a plurality of bits, supports a plurality of maximum segment length, when one of this value value, in header, adds a MAC-hs SDU length mark information in this information sets, expression the length of a multiplexing MAC-hs SDU; When getting other values, each value is represented a call number, representes a maximum segment length respectively or as retention.
Logic Channel Identifier described in the MAC-hs PDU header is the sign that is used to indicate recipient's reorder queue described in the step (2).
Branch segment identification described in the step (2) in the MAC-hs PDU header, expression wherein the segment information of multiplexing MAC-hs SDU, comprise: the not segmentation or of value representation as keeping the position; The non-final stage of value representation; A value representation final stage; A value is used to represent first section or conduct reservation position.
Described in the step (2) in the MAC-hs PDU header, said MAC-hs PDU the situation of multiplexing non-last logic channel of each logic channel use a branch segment identification, represent this logic channel the segment information of multiplexing first MAC-hs SDU; If last logic channel is multiplexing two or more MAC-hs SDU; Then a branch segment identification is set respectively for first MAC-hs SDU and last MAC-hs SDU; Expression wherein the segment information of multiplexing first MAC-hsSDU and last MAC-hs SDU; If only multiplexing MAC-hsSDU then only uses a branch segment identification.
Said domain identifier information described in the step (2) in the MAC-hs PDU header is used to indicate the information after this sign, wherein comprises:
A value is used to represent that the information of back is length mark and the domain identifier information of other MAC-hs SDU under the same logic channel;
A value is used to represent that the information of back is transmission sequence number;
A value is used to represent that the information of back is MAC-hs SDU payload.
Comprise version information in the MAC-hs PDU header described in the step (2).
In sum; The invention provides a kind of implementation method of MAC-hs PDU frame structure of the RLC of support PDU fragmentation feature; A kind of distance to go indicating means has been used in each segmentation wherein; The shared figure place of Length Indication can have been saved header overhead to a great extent according to the actual conditions dynamic change, and has kept better compatibility backward.
Description of drawings
Fig. 1 is existing MAC-hs PDU frame generative process sketch map;
Fig. 2 is existing MAC-d PDU (being MAC-hs SDU) the frame structure sketch map on the HS-DSCH that is mapped to;
Fig. 3 is existing MAC-hs PDU frame structure sketch map;
Fig. 4 is that the present invention is mapped to MAC-d PDU (being MAC-hs SDU) the frame structure sketch map on the HS-DSCH;
Fig. 5 is the sketch map that each transmission block of the embodiment of the invention is provided with MAC-hs PDU frame structure under the transmission sequence number TSN situation;
Fig. 6 be each transmission block of the embodiment of the invention each multiplexing logic channel the sketch map of MAC-hs PDU frame structure under the TSN situation is set.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is explained further details.
Media access control layer MAC-hs entity need be done corresponding modification to existing MAC-hs PDU frame structure in order to support the fragmentation feature to RLC PDU.The invention provides a kind of implementation method of MAC-hsPDU frame structure; Can support the segmentation of RLC PDU; A kind of distance to go indicating means has been used in each segmentation wherein; The shared figure place of Length Indication can have been saved header overhead to a great extent according to the actual conditions dynamic change, and has kept better compatibility backward.
Main contents of the present invention and step are following:
The generation of step 1:MAC-d PDU;
RLC PDU generates MAC-d PDU at the MAC-d entity as MAC-d SDU, additional MAC-d header, and it is multiplexing not carry out logic channel C/T.The MAC-d PDU that is generated is shown in Fig. 4, and promptly MAC-d PDU is generated by a MAC SDU.
Wherein, the generation of MAC-d PDU is independent of the position of MAC-d entity, still is that Node B is irrelevant with the MAC-d entity at RNC promptly.
The generation of step 2:MAC-hs PDU
Said MAC-d PDU the MAC-hs entity as MAC-hs SDU and other MAC-hsSDU multiplexing and add the MAC-hs header after generate MAC-hs PDU.
Wherein, it is multiplexing that MAC-hs PDU supports that the MAC-hs SDU in a logic channel and/or a plurality of logic channel carries out, if multiplexing to the MAC-hs SDU of same logic channel, the MAC-hs SDU that then requires at same logic channel is continuous.
In MAC-hs PDU frame, except that header and MAC-hs SDU payload, can add filler at last to adapt to the length of transmission block TB at the MAC-hsSDU payload.
Mainly comprise following content in the MAC-hs header:
In MAC-hs PDU header, use two bits the segmentation marker SI of totally 4 values represent wherein the content of multiplexing MAC-hs SDU representative: the not segmentation or of one of them value representation as keeping the position; The non-final stage of value representation; A value representation final stage; A value can be used to represent first section or conduct reservation position; The situation of multiplexing non-last logic channel of each logic channel use a SI, represent this logic channel the segment information of multiplexing first MAC-hs SDU; If last logic channel is multiplexing two or more MAC-hs SDU; Then a SI is set respectively for first MAC-hs SDU and last MAC-hs SDU; Expression wherein the segment information of multiplexing first MAC-hs SDU and last MAC-hs SDU; If only multiplexing MAC-hs SDU then only uses a SI to get final product;
In MAC-hs PDU header can according to actual conditions dynamically determine to use the Length Indication LI of length mark LF or 11 bits represent the length of multiplexing each MAC-hs SDU.The definition of LF can be selected to use a bit or use a kind of in a plurality of bit dual modes in the frame structure.
The dynamic selection method of LF or LI is: 1) when certain section multiplexing MAC-hs SDU be under the situation that wireless chain control layer RLC is generated according to maximum segment length, use the length mark LF of a bit or a plurality of bits; 3) only comprise under the situation of a MAC-hs SDU at a MAC-hs PDU, can use LF or neither use LI also not use LF; 2) under other situation, use the Length Indication LI of 11 bits;
When using the length mark LF of 1 bit, support a maximum segment length.Two values of 1 bit can be expressed two kinds of implications respectively: one of them value representation need use the indicated length of LI, and there is the LI field back of LF field.The length of this section of value representation MAC-hs SDU is the length (length that allows the MAC-d header in the present invention is 0) that maximum RLC PDU length adds the MAC-d header, and the back of LF field does not have the LI field;
When using the length mark LF of a plurality of bits, support a plurality of maximum segment length.The implication that a plurality of values of a plurality of bits can be expressed is following: one of them value representation need use the indicated length of LI, and there is the LI field back of LF field.Remaining each value can be defined as call number, and each call number can be represented a maximum segment length respectively; If can being made as, the maximum segment length that index value is supported more than needs, unnecessary index value expands after retention is used for; The back of LF field does not have the LI field;
In MAC-hs PDU header, use two bits information after this signs of domain identifier F indication of totally 4 values, the information of one of them value representation back is Length Indication LF and/or LI, the domain identifier F of other MAC-hs SDU under the same logic channel; The information of a value representation back is Logic Channel Identifier LCID and/or TSN (under the situation of supporting the many TSN of every transmission block, having behind a kind of implementation domain identifier F also can be TSN); The information of a value representation back begins the payload for MAC-hsSDU; A value is used for expanded function for retention;
In MAC-hs PDU header transmission sequence number TSN be provided with can select below one of three kinds of schemes:
One of which, a MAC-hs PDU uses a transmission sequence number TSN;
Among its two, MAC-hs PDU multiplexing each logic channel use a transmission sequence number TSN; Promptly a MAC-hs PDU possibly comprise a plurality of TSN, at receiving terminal each logic channel is sorted according to TSN;
Among its three, MAC-hs PDU the corresponding transmission sequence number TSN of multiplexing each priority query; In this case, a plurality of logic channels are multiplexed into a priority query, and a plurality of priority queries are multiplexed into a MAC-hs PDU, and a MAC-hs PDU possibly comprise a plurality of TSN.
In one embodiment of the invention, the length of said header is variable-length, and header comprises following field:
Version Flag (VF): version sign is 1bit.This field is that MAC-hs PDU form provides extended capability.This field value is taken as 1 in the present invention.
Transmission Sequence Number (TSN): transmission sequence number.This field is provided at the transmission sequence number on the high speed descending sharing channel, and the purpose that is used to reorder is to support the delivery function according to the order of sequence to the upper-layer protocol layer.Field length can be defined as 6bit or 7bit.
Logical Channel ID (LCID): Logic Channel Identifier.This field is used to indicate the sign of recipient's reorder queue.Field length can be defined as 6bit.
Segmentation Identifier (SI): divide segment identification.This field is used for representing the segment information of first MAC-hs SDU of respective logical channels, in the end in logic channel, also is used to represent the segment information of last MAC-hs SDU.Field length can be defined as 2bit.Wherein, 00 representes that not segmentation or conduct keep the position; 01 expression segmentation and non-final stage MAC-hs SDU; 10 expression segmentations and be final stage MAC-hs SDU; 11 be used to represent segmentation and be first section MAC-hsSDU or be left after expand.
Length Flag (LF): MAC-hs SDU length mark, be used to represent the length of a multiplexing MAC-hs SDU whether be maximum RLC PDU length; This field length can be defined as 1bit or a plurality of bit, selects wherein a kind of mode in the frame structure definition.
Be defined as at LF under the situation of 1 bit, support a maximum segment length: represent that when this value is 0 there is the LI field back.Value is to represent that the length of MAC-hs SDU was maximum RLCPDU length at 1 o'clock, and LF does not have the LI field at the back.
Be defined as at LF under the situation of a plurality of bits, support a plurality of maximum segment length: represent that when this value is 0 there is the LI field back.When getting other value, each value is represented a call number respectively, representes a maximum segment length respectively, and LF does not have the LI field at the back.
Length Indicator (LI): MAC-hs SDU length mark, be used to represent the length of a multiplexing MAC-hs SDU.Field length can be defined as 11bit.
Flag (F): domain identifier.This field is used for being illustrated in the MAC-hs header and whether also has more field.F is made as and represented one group of LI of followed, F field at 00 o'clock; Be made as and represented followed TSN at 01 o'clock; Be made as and represented followed MAC-hs SDU payload at 10 o'clock; 11 keep.Field length can be defined as 2bit.
In the header according to transmission sequence number TSN the plan of establishment be in TSN of every transmission block or the every transmission block in multiplexing TSN of every logic channel or the every transmission block multiplexing TSN of each priority query be respectively following three kinds of situation:
One of which is made up of fields: VF, TSN, (LCID, SI, (LF, LI, F)); Same LCID supports a plurality of LF, LI, F; And header is supported a plurality of LCID, SI, (LF, LI, F); Each MAC-hs PDU is provided with a transmission sequence number TSN.() expression field wherein can be a plurality of continuous like combinationss.
For example the concrete mode of VF, TSN, (LCID, SI, (LF, LI, F)) possibly be following form:
VF; TSN; LCID, SI, LF, F, LF, F, LF, LI, F; LCID, SI, LF, LI, F, SI, LF, F; Attention is in above-mentioned expression-form, and the LF back does not have LI sometimes, explains that this section MAC-hs SDU is maximum RLC PDU length, in addition, comprises two SI in last logic channel.
Its two, be made up of fields: VF, (TSN, LCID, SI, (LF, LI, F)), same LCID supports a plurality of LF, LI, F, and header is supported a plurality of TSN, LCID, SI, (LF, LI, F).Each MAC-hs PDU can be provided with a plurality of TSN, promptly to each Logic Channel Identifier LCID a TSN is set respectively.() expression field wherein can be a plurality of continuous like combinationss.
For example the concrete mode of VF, (TSN, LCID, SI, (LF, LI, F)) possibly be following form:
VF; TSN, LCID, SI, LF, F, LF, LI, F, LF, F; TSN, LCID, SI, LF, LI, F, SI, LF, F; Attention is in above-mentioned expression-form, and the LF back does not have LI sometimes, explains that this section MAC-hs SDU is maximum RLC PDU length.
Its three, form can be VF, (QId, TSN, (LCID, SI, (LF, LI, F))), wherein Qid representes priority query sign; For example concrete mode possibly be following form:
VF、QId、TSN、LCID、SI、LF、F、LF、LI、F、LF、F、LCID、SI、LF、LI、F、QId、TSN、LCID、SI、LF、F。
In reality is implemented, figure place that above-mentioned field is shared and actual residing position maybe with the present invention in defined incomplete same, as long as but used the implication described in the above-mentioned explanation of field, then should think also to belong to content of the present invention.
Provide the several concrete application examples of the present invention below.
Fig. 5 is a kind of embodiment 1 of the present invention.
At first, RLC PDU is generated MAC-d PDU at the MAC-d entity as MAC-d SDU, during generation, additional MAC-d header, it is multiplexing not carry out logic channel C/T;
Then; Said MAC-d PDU the MAC-hs entity as MAC-hs SDU with carry out multiplexing from the MAC-hs SDU of same logic channel or Different Logic channel; And additional corresponding header generates MAC-hs PDU; The MAC-hs PDU that generates meets frame structure as shown in Figure 5, and each MAC-hs PDU only is provided with a transmission sequence number TSN.
Frame of broken lines LI representes that whether this field determines needs according to the value of the field LF in front among the figure, and the composition mode of header is following, and the implication of field is with above-mentioned embodiment:
VF；TSN；LCID
1、SI、LF
1、LI
1、F
1、...、LF
k、LI
k、F
k；LCID
2、SI、LF
1、LI
1、F
1、...、LF
k、LI
k、F
k、...。
Fig. 6 is the another kind of embodiment of the present invention.
Fig. 6 .1 is an embodiment 2 of the present invention.
(generative process of MAC-PDU slightly) carries out multiplexing from the MAC-hs SDU of same logic channel or Different Logic channel at the MAC-hs entity; And additional corresponding header generates MAC-hsPDU; The MAC-hs PDU that generates meets the frame structure shown in Fig. 6 .1, each MAC-hs PDU each multiplexing logic channel a transmission sequence number TSN is set.
Frame of broken lines LI representes that whether this field determines needs according to the value of the field LF in front among the figure, and the composition mode of header is following, the same the above embodiments of each field implication:
VF；TSN
1、LCID
1、SI、LF
1、LI
1、F
1、...、LF
k、LI
k、F
k；TSN
2、LCID
2、SI、LF
1、LI
1、F
1、...、LF
k、LI
k、F
k、...。
Fig. 6 .2 is an embodiment 3 of the present invention.
(generative process of MAC-PDU slightly) carries out multiplexing from the MAC-hs SDU of same logic channel or Different Logic channel at the MAC-hs entity; And additional corresponding header generates MAC-hsPDU; The MAC-hs PDU that generates meets the frame structure shown in Fig. 6 .2, each MAC-hs PDU each multiplexing logic channel a transmission sequence number TSN is set.
Frame of broken lines LI representes that whether this field determines needs according to the value of the field LF in front among the figure, and the composition mode of header is following, and each field implication is with above-mentioned embodiment:
VF；LCID
1、TSN
1、SI、LF
1、LI
1、F
1、...、LF
k、LI
k、F
k；LCID
2、TSN
2、SI、LF
1、LI
1、F
1、...、LF
k、LI
k、F
k、...。
Different with Fig. 6 .1 is that TSN is in the LCID back in frame.
Claims (14)
1. the implementation method of a descending protocol data unit of media access control layer is characterized in that, comprises the steps:
(1) with protocol data unit of wireless links control layer RLC PDU at media access control layer MAC-d entity as media access control layer service data unit MAC-d SDU; Generate medium access control layer protocol data cell MAC-d PDU; Additional MAC-d header when generating said MAC-d PDU, it is multiplexing not carry out logic channel C/T;
(2) said MAC-d PDU gets involved key-course service data unit MAC-hs SDU at media access control layer MAC-hs entity as medium; To carry out multiplexing at the MAC-hs entity from the MAC-hs SDU of same logic channel or Different Logic channel; And additional corresponding header generates descending protocol data unit of media access control layer MAC-hs PDU; Comprise branch segment identification and several information sets under transmission sequence number, one or more Logic Channel Identifier and each Logic Channel Identifier in the said header, comprise domain identifier information in each information sets and about the length information of each MAC-hs SDU.
2. the method for claim 1; It is characterized in that: the said descending protocol data unit of media access control layer MAC-hs PDU that generates in the step (2); Except that comprise header and multiplexing after MAC-hs SDU payload; In order to adapt to the length of transmission block TB, further comprise: the filler that the MAC-hs SDU payload end after multiplexing adds.
3. the method for claim 1 is characterized in that: carry out in the step (2) when multiplexing, if said MAC-hs SDU from same logic channel, is continuous at the MAC-hs of same logic channel SDU then.
4. the method for claim 1 is characterized in that: only comprise a transmission sequence number in the said MAC-hs PDU header that generates in the step (2).
5. the method for claim 1; It is characterized in that: described in the step (2) in the MAC-hsPDU header for each MAC-hs PDU each multiplexing logic channel a transmission sequence number all is set, the corresponding transmission sequence number of each Logic Channel Identifier this moment.
6. the method for claim 1; It is characterized in that: in the said step (2) each MAC-hsPDU multiplexing MAS-hs SDU from one or more priority queries; Each priority query comprises one or more logic channels; In the MAC-hs PDU header for each MAC-hs PDU each multiplexing priority query a transmission sequence number all is set; The corresponding transmission sequence number of each priority query this moment and priority query's sign, the corresponding one or more Logic Channel Identifiers of each transmission sequence number, wherein each Logic Channel Identifier is to corresponding logic channel in should priority query.
7. the method for claim 1; It is characterized in that: in the said step (2) in the MAC-hsPDU header length information of each MAC-hs SDU be a length mark, be used to represent the length of a multiplexing MAC-hs SDU whether be maximum RLC PDU length.
8. method as claimed in claim 7; It is characterized in that: said length mark is 1 bit; Support a maximum segment length; When this value is a value, in header, add a MAC-hs SDU length mark information in this information sets, expression the length of a multiplexing MAC-hs SDU; When getting another value, the length of expression MAC-hs SDU is maximum RLC PDU length.
9. method as claimed in claim 7; It is characterized in that: said length mark is a plurality of bits; Support a plurality of maximum segment length; When one of this value value, in header, add a MAC-hs SDU length mark information in this information sets, expression the length of a multiplexing MAC-hs SDU; When getting other values, each value is represented a call number, representes a maximum segment length respectively or as retention.
10. the method for claim 1, it is characterized in that: Logic Channel Identifier described in the MAC-hsPDU header described in the step (2) is the sign that is used to indicate recipient's reorder queue.
11. the method for claim 1 is characterized in that: the branch segment identification described in the step (2) in the MAC-hsPDU header, expression wherein the segment information of multiplexing MAC-hs SDU, comprise: the not segmentation or of value representation as keeping the position; The non-final stage of value representation; A value representation final stage; A value is used to represent first section or conduct reservation position.
12. like claim 1 or 11 described methods; It is characterized in that: described in the step (2) in the MAC-hs PDU header; Said MAC-hs PDU the situation of multiplexing non-last logic channel of each logic channel use a branch segment identification, represent this logic channel the segment information of multiplexing first MAC-hs SDU; If last logic channel is multiplexing two or more MAC-hs SDU; Then a branch segment identification is set respectively for first MAC-hs SDU and last MAC-hs SDU; Expression wherein the segment information of multiplexing first MAC-hs SDU and last MAC-hs SDU; If only multiplexing MAC-hs SDU then only uses a branch segment identification.
13. the method for claim 1 is characterized in that: the said domain identifier information described in the step (2) in the MAC-hsPDU header, be used to indicate the information after this sign, wherein comprise:
A value is used to represent that the information of back is length mark and the domain identifier information of other MAC-hs SDU under the same logic channel;
A value is used to represent that the information of back is transmission sequence number;
A value is used to represent that the information of back is MAC-hs SDU payload.
14. the method for claim 1 is characterized in that: comprise version information in the MAC-hsPDU header described in the step (2).
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| US8638815B2 (en) * | 2010-01-08 | 2014-01-28 | Blackberry Limited | Method and apparatus for logical channel prioritization for uplink carrier aggregation |
| CN103379543B (en) * | 2012-04-23 | 2016-06-15 | 普天信息技术研究院有限公司 | A kind of data transmission method based on TD-LTE |
| EP3829252B1 (en) | 2015-04-10 | 2022-06-01 | Samsung Electronics Co., Ltd. | Method and apparatus for receiving mac pdu in mobile communication system |
| WO2017049647A1 (en) * | 2015-09-25 | 2017-03-30 | 华为技术有限公司 | Data sending method, data receiving method and relevant device |
| CN106465183B (en) * | 2016-09-20 | 2020-06-02 | 北京小米移动软件有限公司 | Data transmission method, device and system |
| US10749641B2 (en) * | 2016-10-11 | 2020-08-18 | Qualcomm Incorporated | Media access control header and transport block formats |
| CN108366039B (en) * | 2017-01-26 | 2021-01-15 | 中国移动通信有限公司研究院 | Sending method, receiving method, device and equipment of MAC layer data |
| WO2019196125A1 (en) | 2018-04-13 | 2019-10-17 | Nokia Shanghai Bell Co., Ltd. | Enhancement of medium access control subheaders |
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| WO2005062550A1 (en) * | 2003-12-22 | 2005-07-07 | Samsung Electronics Co., Ltd, | Apparatus and method for processing data in high speed downlink packet access (hsdpa) communication system |
| CN1710829A (en) * | 2004-06-18 | 2005-12-21 | 北京三星通信技术研究有限公司 | Method for supporting low data-rate in reinforced upstream special channel of WCDMA system |
| CN1731771A (en) * | 2005-08-16 | 2006-02-08 | 中兴通讯股份有限公司 | System and method for supporting multi-carrier downlink high-speed data packet access |
| CN1852581A (en) * | 2005-10-12 | 2006-10-25 | 上海华为技术有限公司 | Method for transmitting data on downward link |
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| WO2005034418A1 (en) * | 2003-10-07 | 2005-04-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Medium access control priority-based scheduling for data units in a data flow |
| WO2005062550A1 (en) * | 2003-12-22 | 2005-07-07 | Samsung Electronics Co., Ltd, | Apparatus and method for processing data in high speed downlink packet access (hsdpa) communication system |
| CN1710829A (en) * | 2004-06-18 | 2005-12-21 | 北京三星通信技术研究有限公司 | Method for supporting low data-rate in reinforced upstream special channel of WCDMA system |
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