CN101034965B

CN101034965B - Transmission method of the protocol data unit in the high-speed downlink packet access and its system

Info

Publication number: CN101034965B
Application number: CN200610024454A
Authority: CN
Inventors: 刘晟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-03-07
Filing date: 2006-03-07
Publication date: 2010-05-12
Anticipated expiration: 2026-03-07
Also published as: CN101034965A

Abstract

This invention relates to a high-speed downlink packet access technology, and disclosesa high-speed downlink packet access protocol data unit in the transmission method and realizes wireless network resources can be used effectively and enhances each area of VoIP users. This invention reuse the different MAC-hs PDU form the same UE group and send the data block to all the UE of the same UE group point out the reused UE ,the head of the delimitation and payloads, and the MAC - hs PDU the delimitation of reconciliation using the head data of the block. Then UEjudges whether they belong to the UEincludes the MAC - hs PDU, if it is, then multiplex the data block to get its own MAC-hs PDU.

Description

Protocol Data Unit transmission method and system thereof during high speed downlink packet inserts

Technical field

The present invention relates to high speed downlink packet access technology, protocol Data Unit transmission during particularly high speed downlink packet inserts.

Background technology

Universal mobile telecommunications system (Universal Mobile Telecommunication System, be called for short " UMTS ") owing to its strong multimedia communication capacity, high-speed data transmission speed and efficiently many advantages such as the availability of frequency spectrum gain great popularity, and become the developing goal of future mobile communications.One of key property of UMTS technology R5 version is exactly that high speed downlink packet inserts (High Speed DownlinkPacket Access, be called for short " HSDPA "), promptly by adaptive modulation and coding (AdaptiveModulation and Coding, abbreviation " AMC "), mix re-transmission (HybridAutomatic-Repeat-reQuest, be called for short " HARQ "), and the series of key techniques such as fast dispatch of base-station node (Node B), realized descending high speed data transfer.

Those of ordinary skill in the art know that air interface technologies is the considerable part of various mobile communication standards, specifically just show by function to divide on physical channel that forms and the transmission channel that shines upon mutually with it.The UMTS basic version has just been divided seven kinds of transmission channels and mapping or independently tens kinds of physical channels mutually with it.

HSDPA is descending to comprise two physical channels, one is high-speed physical downlink shared channel (HS-PDSCH) (HighSpeed Physical Downlink Shared Channel, be called for short " HS-PDSCH "), be used to carry user's data information, another is High-Speed Shared Control Channel (High Speed Shared ControlChannel, be called for short " HS-SCCH "), be used to carry the required signaling of demodulation companion data channel HS-PDSCH.In addition, HSDPA is at a up High-Speed Dedicated Physical Control Channel (the HighSpeed-Dedicated Physical Control Channel that increased, be called for short " HS-DPCCH "), this channel is used to carry the feeding back downlink Frame receives correctness by HS-PDSCH information, perhaps be used for feedback channel quality indication (Channel Quality Indicator is called for short " CQI ").

UE knows whether have Node B to send to its data on the corresponding HS-PDSCH by HS-SCCH, also from HS-SCCH obtain demodulation HS-PDSCH required comprise transformat and resource informations such as parallel code channel number and corresponding spreading code, transmission block size, modulation scheme, Node B then knows by HS-DPCCH whether data are correctly received, if it is incorrect, to initiate to retransmit, otherwise send new data.

Specifically, at each Transmission Time Interval (Transmission Time Interval, be called for short " TTI ") on, HS-PDSCH can only transmit the data of a UE, UE by monitor HS-SCCH judge corresponding TTI the HS-PDSCH channel bearing whether be one's own data.According to 3GPP standard " TS 25.212; Multiplexing and channel coding (FDD) ", the HS-SCCH loaded information comprises: the new data indication of the redundancy versions of the modulation scheme information of the channel code collection information of 7 bits, 1 bit, the transport block size information of 6 bits, the HARQ procedural information of 3 bits, 3 bits and planisphere version information, 1 bit and the high speed descending sharing channel Radio Network Temporary Identifier of 16 bits (HS-DSCH Radio Network Temporary Identity is called for short " H-RNTI ").UE be exactly according to the UE of 16 bits that carry on HS-SCCH sign H-RNTI judge corresponding TTI the HS-PDSCH channel bearing whether be one's own data.

Meanwhile, at UE side and universal mobile telecommunications system grounding wireless access network (UMTSTerrestrial Radio Access Network, abbreviation " UTRAN ") media interviews of side control (MediumAccess Control, abbreviation " MAC ") layer has also increased high speed media access control (Medium AccessControl-high speed, abbreviation " MAC-hs ") Flow Control of HSDPA is supported in the sublayer, fast dispatch, priority management, HARQ and transport format resource indication (Transport Format and ResourceIndicator is called for short " TFRI ") are selected.MAC-hs is positioned under another sublayer MAC-d (d refers to special use) of MAC layer, on the physical layer.Fig. 1 and Fig. 2 show the structure of the MAC-hs of UTRAN side and UE side respectively.

As shown in Figure 1, from radio network controller (Radio Network Controller, be called for short " RNC ") in after the MAC-d of each UE flows to MAC-hs entity among the Node B, at first by priority query's allocation units according to MAC-d protocol Data Unit (the Protocol DataUnit on the MAC-d stream, abbreviation " PDU ") priority, with allocation of packets buffer memory in the different priority queries, wait for Node B scheduling, be able to go up transmission at high speed descending sharing channel (High Speed Downlink SharedChannel is called for short " HS-DSCH ").Wherein, the packet in each priority query is the MAC-d PDU with equal priority of same UE, and its size has nothing in common with each other.

Node B dispatches the data transmission of each priority query of each UE at each TTI, be that Node B selects the MAC-d PDU of the some in a certain priority query of a certain UE in the HS-DSCH of current TTI channel according to certain dispatching algorithm, selected MAC-d PDU is with multiplexing formation MAC-hs PDU, transferring to the HARQ entity again transmits by a certain HARQ process of this UE, wherein, a UE can have 8 independently HARQ processes at most.Transmission format resource combination (TFRC) selected cell then is responsible for being chosen in HS-DSCH and is gone up employed transformat and the resources such as parallel code channel number and corresponding spreading code, transmission block size, modulation scheme of comprising of transmission.

Wherein, the form of MAC-hs PDU as shown in Figure 3, the head of MAC-hs PDU comprises fields such as version sign (VF), queue number (Queue ID), transmission sequence number (TSN), MAC-d PDU Length Indication (SID), MAC-d PDU number N and sign F.Wherein, the VF field length is 1 bit, is used to identify the version of MAC-hs PDU, and the version number of current agreement is 0; Queue id field length is 3 bits, is used to identify the MAC-hs PDU of same priority formation; The TSN field length is 6 bits, is used to identify the sequence number of MAC-hs PDU, thereby makes the receiving terminal can be according to the original MAC-hs PDU of SN recovery order; The SID field length is 3 bits, is used to indicate the length of same size sequence cascade MAC-d PDU together; The N field length is 7 bits, represents the number of same size sequence cascade MAC-d PDU together.The payload part of MAC-hs PDU is by a plurality of MAC-hs SDU, be MAC-d PDU, multiplexing forming, because that the identical but MAC-d PDU that vary in size of same priority formation medium priority has is multiple, therefore multiplexing MAC-d PDU on MAC-hs PDU has multiple different length.In the payload part of MAC-hs PDU, the MAC-d PDU concatenated in order of same length together, the number of its size and concatenated in order MAC-dPDU together is then by corresponding SID of MAC-hs PDU head and N field identification.Length is whether be MAC-d PDU pairing SID and the N field identification of another one size to the F field of 1 bit if then indicating follow-up, wherein, if the F field is " 0 ", represent that then follow-up is the pairing SID of MAC-dPDU and the N field identification of another one size, if field is the end that " 1 " then represents MAC-hs PDU head, promptly follow-up is the payload part of this MAC-hs PDU.

Node B according to the multiplexing formation of the form of MAC-hs PDU MAC-hs PDU, transfers to the HARQ entity with a plurality of MAC-d PDU in certain UE assigned priority formation at a TTI again, and a certain HARQ process by this UE is transferred to this UE.

In the UE side, as shown in Figure 2, the MAC-hs entity of UE side will at first be delivered to the HARQ entity from the MAC-hs PDU of HS-DSCH channel, the HARQ entity of UE side is the recipient of the HARQ entity of UTRAN side, be responsible for finishing generation and correctly reply (ACK)/wrong responses (NACK), operations such as the soft merging of HARQ. after the HARQ processing, the reorder queue unit is assigned to corresponding reorder queue according to the Queue id field of MAC-hs PDU head with this MAC-hs PDU, and in reorder queue, TSN field according to each MAC-hs PDU head is resequenced to each MAC-hs PDU, thereby recover original packet sequence, at last, the MAC-hs PDU that has recovered original order is admitted to the partition unit, and the partition unit is according to the SID of MAC-hs PDU head, N and F field split out each MAC-d PDU and are sent to the MAC-d entity from the payload part branch of MAC-hs PDU.

Because remarkable advantages such as downlink transfer speed is big, propagation delay time is little, HSDPA is by increasing professional the use, based on internet protocol multimedia core network subsystem (IP Multimedia Subsystem, abbreviation " IMS ") packet voice (Voice over IP is called for short " VoIP ") technology is exactly typical case's application wherein.

At present, standard " TS 25.212; Multiplexing and channel coding " according to 3GPP, the MAC-d PDU of the some in a certain priority query of a certain UE that network side will be selected according to certain dispatching algorithm, at the multiplexing formation of MAC-hs layer MAC-hs PDU, and after this MAC-hsPDU enters into physical layer, cyclic redundancy check (CRC) (the Cyclic RedundancyCheck of additional one 24 bit, be called for short " CRC "), and then carry out chnnel coding, interweave and operation such as planisphere mapping, as shown in Figure 4; Perhaps, MAC-hs PDU with other priority queries of this MAC-hs PDU and this UE in the MAC-hs layer is multiplexed into a MAC-hs PDU once more, identical, after this MAC-hs PDU enters into physical layer, the CRC of additional one 24 bit, and then carry out chnnel coding, interweave and operation such as planisphere mapping.Network side will send to this UE by a TTI at the final data transmission block that forms of physical layer.

After UE receives the data transmission block that network side sends, carry out demodulation, channel-decoding etc. and receive processing, and decoded data transmission block is carried out CRC check in physical layer, HARQ entity with the MAC-hs layer of verification result notification UE, whether decision requires network side to retransmit this data transmission block and controls the soft merging of corresponding HARQ this HARQ entity according to this CRC check result, unless retransmitting, HARQ surpasses certain number of times, otherwise, when having only verification as CRC correct, the physical layer of UE is just delivered to the MAC-hs PDU that is correctly decoded the MAC-hs layer of this UE.

In actual applications, there is following problem in such scheme: wireless network resource can't be fully utilized.

Cause the main cause of this situation to be, in the prior art, HSDPA can only transmit a MAC-hs PDU among the UE in a TTI, and because the streaming rate of VoIP in different MAC-hs priority queries is very low, even this MAC-hs PDU forms through the multiplexing back of the PDU of different priorities formation, still may not make full use of the transmission bandwidth of HSDPA, thereby cause a large amount of residue transmission bandwidths not to be utilized, and also have many other using the problem of the data to be transmitted such as UE of VoIP business in this sub-district simultaneously.

Summary of the invention

In view of this, main purpose of the present invention is to provide protocol Data Unit transmission method and system thereof in a kind of high speed downlink packet access, make wireless network resource to be used effectively, and improved the small packet service users' such as VoIP of each sub-district capacity.

For achieving the above object, the invention provides protocol Data Unit transmission method in a kind of high speed downlink packet access, comprise following steps:

At least two subscriber equipmenies of A are set to a group of user equipments, for it distributes a group id;

The B network side will belong to that the protocol Data Unit of at least two high speed media MAC layers of same group of user equipments is multiplexing to issue in the data transmission block of a Transmission Time Interval sharing physical channel, and will indicate the ownership of data in this Transmission Time Interval with described group id;

The described subscriber equipment of C is collected the data transmission block of respective transmissions the time interval according to described group id from described shared physical channel, to therefrom obtaining the protocol Data Unit that belongs to this subscriber equipment behind its demultiplexing.

Wherein, described data transmission block comprises head and payload part;

Comprise each the described protocol Data Unit that belongs to same group of user equipments in the described payload;

Comprise the demarcation information of information, this head and the payload of the subscriber equipment under each protocol Data Unit in the described payload of indication and the demarcation of interior each protocol Data Unit of this payload in the described head and conciliate multiplexed information.

In this external described method, the cyclic redundancy check (CRC) code that also comprises each described protocol Data Unit in the described payload, be used for detecting in user equipment side the correctness of this protocol Data Unit, each described protocol Data Unit and cyclic redundancy check (CRC) code thereof are present in the described payload with cascade system.

In this external described method, described head also comprises cyclic redundancy check (CRC) code, is used for detecting in user equipment side the correctness of this head.

In this external described method, described head uses redundancy encoding.

In this external described method, described shared physical channel is a high-speed physical downlink shared channel (HS-PDSCH);

The channel that transmits described group id is a High-Speed Shared Control Channel.

In this external described method, described group id is the high-speed downlink shared channel Radio Network Temporary Identifier.

In this external described method, all subscriber equipmenies in the described group of user equipments are uploaded the protocol Data Unit that belongs to this subscriber equipment that receives described data transmission block and decomposite to network side, and whether correct response message and channel quality indicated;

Do not confirm response message if described network side has received, then network side continues to retransmit this data transmission block, the affirmation response message of all subscriber equipmenies in receiving this group of user equipments;

In the channel quality indication of described network side according to each subscriber equipment feedback in the same group of user equipments, the channel quality indicated value of indication minimum speed limit is dispatched and distributing radio resource.

In this external described method, if described subscriber equipment has been received the data transmission block that retransmits, and this data transmission block and in belong to this subscriber equipment protocol Data Unit correctly received before this, then ignore processing to the data transmission block of this re-transmission.

The present invention also provides protocol Data Unit transmission system in a kind of high speed downlink packet access, comprises physical layer and medium Access Layer in network side and the subscriber equipment respectively, and the physical layer of described network side comprises:

Multiplexing module is used for and will belongs to the multiplexing data transmission block at a Transmission Time Interval sharing physical channel of protocol Data Unit of at least two high speed media MAC layers of same group of user equipments;

Sending module is used for sharing the data transmission block that physical channel sends described Multiplexing module generation, and indicates the ownership of data in this Transmission Time Interval with described group id;

The physical layer of described subscriber equipment comprises:

Receiver module is used for collecting the data transmission block in the respective transmissions time interval according to described group id from described shared physical channel,

Demultiplexing module is used for the data transmission block that described receiver module receives is carried out therefrom obtaining the protocol Data Unit that belongs to this subscriber equipment behind the demultiplexing.

Wherein, described data transmission block comprises head and payload part; Comprise each the described protocol Data Unit that belongs to same group of user equipments in the described payload; Comprise the demarcation information of information, this head and the payload of the subscriber equipment under each protocol Data Unit in the described payload of indication and the demarcation of interior each protocol Data Unit of this payload in the described head and conciliate multiplexed information.

By relatively finding, the main distinction of technical scheme of the present invention and prior art is, the MAC-hs PDU of different UEs will be multiplexing in the data transmission block of a TTI in will organizing from the same UE of MAC-hs layer in physical layer, and by the group id of this UE group this data transmission block be sent to all UE in this UE group.Utilize the header fields of data transmission block indicate in this data transmission block the demarcation of UE, head and the payload under the multiplexing MAC-hs PDU and demarcation and the demultiplexing of this MAC-hs PDU, make UE to judge whether it comprises the MAC-hs PDU that belongs to this UE according to the header fields in the received data transmission block, if have, then, obtain belonging to the MAC-hs PDU of himself further to this data transmission block demultiplexing.Add CRC by MAC-hs PDU to header fields and each UE, guaranteed that UE can successfully decomposite the MAC-hs PDU that belongs to himself from the data transmission block that receives, and obtain correct MAC-hs PDU, thereby realized many UE multiplexing on the HSDPA channel.

Further, can in the MAC-hs layer, the PDU in the formation of same UE different priorities be multiplexed into earlier among the MAC-hs PDU of this UE, again will be multiplexing in a data transmission block in physical layer from the MAC-hs PDU of different UEs in the same UE group of MAC-hs layer, thereby realize the multi-user, the PDU of many formations is multiplexing, solved effectively owing to the low transmission bandwidth problem that causes to make full use of HSDPA of the streaming rate of low rate small packet services such as VoIP in different MAC-hs priority queries, thereby the wireless network resource utilance when having improved low rate small packet service such as transmission VoIP among the HSDPA, and further enlarged the small packet service users' such as VoIP of each sub-district capacity.

The different UEs of same UE group is passed through HS-DPCCH channel feedback CQI and ACK/NACK separately independently, and Node B will continue to retransmit till the ACK of all UE that receive this UE group replys; The UE of same UE group ignores after this identical data retransmission transmission block after receiving correct data transmission block and decompositing the correct MAC-hs PDU of this UE.Node B receives the CQI on the HS-DPCCH channel of all UE in the UE group, and dispatches and distributing radio resource according to the CQI value of indication minimum speed limit, thereby guarantees that all UE in this UE group all can effectively receive.

Description of drawings

Fig. 1 is the structural representation of UTRAN side MAC-hs entity in the prior art;

Fig. 2 is the structural representation of UE side MAC-hs entity in the prior art;

Fig. 3 is the structural representation of the MAC-hs PDU of same priority formation in the prior art;

Fig. 4 is the flow chart of the physical layer process MAC-hs PDU of network side in the prior art;

Fig. 5 is according to PDU transmission system structure chart among the HSDPA of first embodiment of the invention;

Fig. 6 is according to PDU transmission method flow chart among the HSDPA of first embodiment of the invention;

Fig. 7 is the structure chart according to the data transmission block of PDU transmission method among the HSDPA of first embodiment of the invention;

Fig. 8 is according to the multiplexing flow chart of MAC-hsPDU of PDU transmission method among the HSDPA of first embodiment of the invention;

Fig. 9 is the structure chart according to the cascade MAC-hs PDU of PDU transmission method among the HSDPA of second embodiment of the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

Core of the present invention is, UE is organized into groups, at least comprise two UE in each UE group and be this UE set of dispense group id, network side will be multiplexing in the data transmission block of a TTI who shares physical channel from the MAC-hs PDU of different UEs in the same UE group of MAC-hs layer in physical layer, and indicate the ownership of data among this TTI by the group id of UE group, thereby make all UE in this UE group to collect data transmission block the corresponding TTI, to therefrom obtaining the PDU. that belongs to this UE behind its demultiplexing from sharing physical channel

More than core of the present invention is introduced, below PDU transmission system structure among the HSDPA of first embodiment of the invention is described.

As shown in Figure 5, network side and UE side comprise physical layer and MAC layer respectively.

In the physical layer of network side, also comprise Multiplexing module and sending module.Wherein, Multiplexing module is used for the multiplexing data transmission block at a TTI who shares physical channel with at least two MAC-hs PDU that belong to same UE group, sending module is used for sharing the data transmission block that physical channel sends this Multiplexing module generation, and indicate the ownership of data among this TTI with this UE group id, promptly which UE group is the data of being transmitted among this TTI belong to.

Also comprise receiver module and demultiplexing module in the physical layer of UE side.Wherein, receiver module is used for collecting the data transmission block of corresponding TTI according to the group id of UE group under this UE from sharing physical channel, demultiplexing module is used for the data transmission block that this receiver module receives is carried out therefrom obtaining the PDU that belongs to this UE behind the demultiplexing, and the PDU that is obtained is delivered to the MAC layer of this UE.

The PDU transmission method as shown in Figure 6 among the HSDPA of first embodiment of the invention.

In step 610, network side is provided with the UE group, and is its assign group sign.Specifically, when UE and network side were set up Radio Link, at least two UE of network side were set to a UE group, and are group id of each UE set of dispense.That is to say, for a UE who belongs to a UE group at least, at least one group id of system assignment and the H-RNTI that is used to identify this UE self will be obtained, if this group id also is H-RNTI, so, for this UE, then will obtain two H-RNTI of system assignment at least, one is used to identify the affiliated UE group of this UE, and another is used to identify this UE self.

Then, enter step 620, the MAC-hs PDU of each UE was multiplexing in network side was organized UE issues in a data transmission block.Specifically, network side will belong to that at least two MAC-hs PDU of same UE group are multiplexing to issue in the data transmission block of a TTI who shares physical channel, and will organize to indicate the data of being transmitted among this TTI to belong to which UE for the set group id of this UE group in step 610.In the present embodiment, data transmission block issues by HS-PDSCH, and the group id of this UE group transmits by HS-SCCH.

Wherein, the structure of data transmission block comprises head and payload part as shown in Figure 7.Payload part is used to comprise each PDU that belongs to same UE group and the CRC of this PDU, makes the UE side detect the transmission correctness of this PDU, and each PDU and CRC thereof are present in the payload part with cascade system.Head partly is used to comprise the demarcation information of information, head and the payload of the UE under each PDU in this payload of indication, multiplexed information is conciliate in the demarcation of interior each PDU of this payload, so that UE can successfully decomposite the PDU that belongs to this UE and the CRC of this PDU after receiving this data transmission block, and, this head part also need comprise the CRC of this header information, makes the UE side can detect the transmission correctness of this head internal information.

The multiplexing flow process in the data transmission block of a TTI who shares physical channel of at least two MAC-hs PDU that network side will belong to same UE group as shown in Figure 8.

In step 810, the physical layer of network side is the CRC from additional this PDU of PDU of each UE in the same UE group of MAC-hs layer, with guarantee the UE side can detect decomposed the PDU that obtains and mistake whether in transmission course, occurred.

Then, in step 820, the physical layer of network side generates header information, comprising the demarcation reconciliation multiplexed information of each PDU in the demarcation information of the information, head and the payload that are used to indicate the UE under each PDU and this payload.

In step 830, the physical layer of network side is to the additional CRC of header information and carry out redundancy encoding.This be because, if adopt mode, then the header fields after multiplexing had higher accuracy requirement, otherwise will can't carry out demultiplexing to its payload part owing to the error of transmission of header fields at physical layer multiplex MAC-hs PDU, but, the Block Error Rate of HSDPA physical layer transmission itself is again than higher, therefore, and need be to behind the additional CRC of header information, carry out redundancy encoding again, preferably, can adopt the mode of block encoding or repeated encoding, to improve the correctness of header information.

Then, in step 840, the data transmission block after multiplexing is carried out chnnel coding, interweaves and operation such as planisphere mapping, and deliver to the band spectrum modulation unit.

Network side with the MAC-hs PDU of each UE in the UE group is multiplexing in a data transmission block, issue after, enter step 630, UE judges whether the data transmission block head that receives correct.Specifically, if network side is to issue data transmission block by HS-PDSCH, so, each UE of UE side receives corresponding data transmission block according to the group id that HS-SCCH goes up data transmission block ownership in this TTI of indication.And after this data transmission block is handled through demodulation, channel-decoding etc., the head of this data transmission block is carried out the checking of CRC, detect this data transmission block and mistake whether in transmission course, occurs.If be proved to be successful, i.e. the head of this data transmission block transmission is correct, then enters step 640, otherwise enters step 650.

In step 640, the UE that receives this data transmission block judges further whether the PDU that belongs to this UE that decomposites transmits correctly.Specifically, the head that each UE of UE side receives corresponding data transmission block and this data transmission block according to the group id under it transmits when correct, go out the CRC of one's own PDU and this PDU according to the information decomposition that this head comprised after, one's own PDU is carried out the checking of CRC, detect one's own PDU and mistake whether in transmission course, occurs.If be proved to be successful, then the PDU that is correctly decoded delivered to the MAC-hs layer of this UE and enter step 660, perhaps, if UE finds not comprise in this data transmission block one's own PDU by this header information, then directly enter step 660, otherwise, step 650 entered.

In step 650, promptly when data transmission block head that UE receives or the one's own PDU that decomposites from this data transmission block are incorrect, upload the NACK that produces by the MAC-hs layer HARQ entity of this UE to network side and reply with this data transmission block of request retransmission, and corresponding C QI.

In step 660, promptly the data transmission block head that receives as UE is correct, and the one's own PDU that decomposites from this data transmission block is also correct or this data transmission block in when not comprising one's own PDU, upload the ACK that the MAC-hs layer HARQ entity by this UE produces to network side and reply and corresponding C QI.

Then, enter step 670, the CQI value of indication minimum speed limit is dispatched and distributing radio resource among the CQI that network side returns according to each UE, and the ACK that judges whether to receive all UE in the UE group under this data transmission block replys.If no, then enter step 680.

In step 680, network side retransmits this data transmission block, and the ACK of all UE under receiving this data transmission block in the UE group replys, thereby all interior UE of UE group all can effectively receive this data transmission block under guaranteeing this data transmission block.Therefrom decomposite one's own PDU or learn for the UE that does not comprise one's own PDU in this data transmission block for correctly receiving this data transmission block and success, if received the data transmission block of this re-transmission, then ignore processing to the data transmission block of this re-transmission.

In the present embodiment, the physical layer of network side will be multiplexing in a data transmission block from the MAC-hs PDU of different UEs in the same UE group of MAC-hs layer, and this data transmission block is sent to all UE in this UE group by the group id of this UE group, realized many UE multiplexing on the HSDPA channel.

Second execution mode of the present invention and first execution mode are roughly the same, its difference only is, in the first embodiment, PDU from the MAC-hs layer is the PDU of the same priority of same UE, and in the present embodiment, from the PDU of MAC-hs layer is the PDU through different priorities of the same UE PDU after multiplexing, and its structure as shown in Figure 9.The MAC-hs PDU that is about to a plurality of priority queries of same UE carries out cascade, and all possible filling field is placed on after the MAC-hs PDU of all cascades.In order to distinguish filling bit and MAC-hs PDU, afterbody at whole cascade MAC-hs PDU has increased an optionally filling pointer field, the starting position of field is filled in indication, and indicates whether to exist the filling pointer field with a fixing filling pointer mark (PF).In the process of carrying out cascade, the bit number of Tian Chonging is less than 21 bits if desired, then do not produce to fill pointer field and have only the filling field, is provided with simultaneously to fill the pointer mark indication and do not have the filling pointer field; The bit number of Tian Chonging is equal to or greater than 21 bits if desired, then generates the filling pointer field and indicates the starting position of filling field, and filling pointer mark indication existence filling pointer field is set.

In the present embodiment, by in the MAC-hs layer, the PDU in the formation of same UE different priorities being multiplexed among the MAC-hs PDU of this UE earlier further, again will be multiplexing in the data transmission block of a TTI in physical layer from the MAC-hs PDU of different UEs in the same UE group of MAC-hs layer, thereby realize the multi-user, the PDU of many formations is multiplexing, solved effectively owing to the low transmission bandwidth problem that causes to make full use of HSDPA of the streaming rate of low rate small packet services such as VoIP in different MAC-hs priority queries, thereby the wireless network resource utilance when having improved low rate small packet service such as transmission VoIP among the HSDPA, and further enlarged the small packet service users' such as VoIP of each sub-district capacity.

Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims

1. protocol Data Unit transmission method during a high speed downlink packet inserts is characterized in that, comprises following steps:

The described subscriber equipment of C is collected the data transmission block of respective transmissions the time interval according to described group id from described shared physical channel, to therefrom obtaining the protocol Data Unit that belongs to this subscriber equipment behind its demultiplexing;

Wherein, described data transmission block comprises head and payload part;

2. protocol Data Unit transmission method during high speed downlink packet according to claim 1 inserts, it is characterized in that, the cyclic redundancy check (CRC) code that also comprises each described protocol Data Unit in the described payload, be used for detecting in user equipment side the correctness of this protocol Data Unit, each described protocol Data Unit and cyclic redundancy check (CRC) code thereof are present in the described payload with cascade system.

3. protocol Data Unit transmission method during high speed downlink packet according to claim 1 inserts is characterized in that described head also comprises cyclic redundancy check (CRC) code, is used for detecting in user equipment side the correctness of this head.

4. protocol Data Unit transmission method during high speed downlink packet according to claim 3 inserts is characterized in that, described head uses redundancy encoding.

5. according to protocol Data Unit transmission method during each described high speed downlink packet inserts in the claim 1 to 4, it is characterized in that described shared physical channel is a high-speed physical downlink shared channel (HS-PDSCH);

6. protocol Data Unit transmission method during high speed downlink packet according to claim 5 inserts is characterized in that described group id is the high-speed downlink shared channel Radio Network Temporary Identifier.

7. protocol Data Unit transmission method during high speed downlink packet according to claim 5 inserts, it is characterized in that all subscriber equipmenies in the described group of user equipments are uploaded the protocol Data Unit that belongs to this subscriber equipment that receives described data transmission block and decomposite to network side, and whether correct response message and channel quality indicated;

8. protocol Data Unit transmission method during high speed downlink packet according to claim 7 inserts, it is characterized in that, if described subscriber equipment has been received the data transmission block that retransmits, and this data transmission block and in belong to this subscriber equipment protocol Data Unit correctly received before this, then ignore processing to the data transmission block of this re-transmission.

9. protocol Data Unit transmission system during a high speed downlink packet inserts comprises physical layer and medium Access Layer respectively in network side and the subscriber equipment, it is characterized in that the physical layer of described network side comprises:

Sending module is used for sharing the data transmission block that physical channel sends described Multiplexing module generation, and indicates the ownership of data in this Transmission Time Interval with group id;

The physical layer of described subscriber equipment comprises:

Demultiplexing module is used for the data transmission block that described receiver module receives is carried out therefrom obtaining the protocol Data Unit that belongs to this subscriber equipment behind the demultiplexing;

Wherein, described data transmission block comprises head and payload part;