CN101188786A - Multi-user multiplexing transmission method, system and device for high-speed downlink packet access - Google Patents
Multi-user multiplexing transmission method, system and device for high-speed downlink packet access Download PDFInfo
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Abstract
The invention discloses a transmission method for the multi-user multiplexing in the high speed downlink packet access (HSDPA). The invention comprises the following steps: A, a network side multiplexes the grouped data of a plurality of UEs in a user equipment (UE) group to get the multi-user multiplexing data, and transmits to the multi-user multiplexing data; B, the UE receives the multi-user multiplexing data belonging to UE group and coming form a network side, and returns a reply message to the network side according to the receiving result; the network side receives the EU reply message in the EU group which has the data transmission, and omits the EU reply message without data transmission; C, according to EU reply message in the EU group which has the data transmission, the network side determines whether the multi-user multiplexing data of the EU group is re-transmitted or not. In addition, the invention also discloses a transmission system and the device thereof for the multi-user multiplexing in HSDPA. The invention can avoid unnecessary re-transmitting, and the wireless resource is saved.
Description
Technical field
The present invention relates to high speed downlink packet and insert (HSDPA) technology, relate in particular to transmission method, system and the device of multiuser multiplexing among the HSDPA.
Background technology
The HSDPA technology is the key property of Wideband Code Division Multiple Access (WCDMA) (WCDMA) network R5 version.The HSDPA technology has realized the high speed data transfer on the down link by adaptive modulation and coding (AMC), the Fast Packet scheduling key technologies such as (FPS) of mixing automatic repeat requests (HARQ), base-station node (Node B).
In the HSDPA technology, the high speed descending sharing channel (HS-DSCH) that switches between the user at interval with 2ms can be provided, in order to realize the HS-DSCH transmission, HSDPA has introduced three new physical channels, i.e. high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH), High-Speed Shared Control Channel (HS-SCCH) and High-Speed Dedicated Physical Control Channel (HS-DPCCH).Wherein, HS-PDSCH is used to carry the high-speed downstream user data information; HS-SCCH is used to carry the required signaling of demodulation companion data channel HS-PDSCH; HS-DPCCH is used to carry the feeding back downlink Frame by the information that HS-PDSCH receives correctness, perhaps is used for feedback channel quality indication (CQI).
Meanwhile, also increased the Flow Control that HSDPA is supported in high speed media access control (MAC-hs) sublayer at the media interviews of UE side and network side controls (MAC) layer, fast dispatch, priority management, HARQ and transport format resource indication (TFRI) select.MAC-hs is positioned under specialized media access control (MAC-d) sublayer of MAC layer, on the physical layer.When carrying out transfer of data, after the MAC-d from each UE in the radio network controller (RNC) of network side flows to MAC-hs entity among the Node B, at first by the priority of priority query's allocation units according to the MAC-d protocol Data Unit (PDU) on the MAC-d stream, with allocation of packets buffer memory in the different priority queries, wait for Node B scheduling.Wherein, packet in each priority query is the MAC-d PDU with equal priority of same UE, Node B goes up data to each priority query of each UE at each Transmission Time Interval (TTI) and sends and dispatch, being Node B selects the MAC-dPDU of the some of the some in a certain MAC-hs priority query of a certain UE to transmit on the HS-PDSCH of current TTI according to certain dispatching algorithm, selected MAC-d PDU transfers to multiplexing formation MAC-hs PDU again the HARQ entity and transmits by a certain HARQ process of this UE.
Because remarkable advantages such as downlink transfer speed are big, propagation delay time is little, HSDPA is by increasing professional the use, as and grouping recreation (GoIP) business professional based on the packet voice (VoIP) of internet protocol multimedia core network subsystem (IMS) etc.But total peak velocity of low speed business such as VoIP is lower, transmission mode according to HSDPA, packet data streams different in the low speed business such as VoIP is further segmented the back to be transmitted in different MAC-hs priority queries, can cause each MAC-hs priority query to have lower speed, be far smaller than the transmission bandwidth of HSDPA, cause a large amount of residue transmission bandwidths not to be utilized, and other is using in the MAC-hs priority query among the UE of business such as VoIP and is also having data to be transmitted such as a large amount of among this UE or in this sub-district.
For when low speed such as carrying VoIP are professional, make full use of the transmission bandwidth of HSDPA, the multiplexing transmission technology of a kind of multi-user data is arranged now, promptly pass through the multiplexing transmission block of a plurality of UE of HS-PDSCH Channel Transmission to two or more UE simultaneously, UE receives the HS-PDSCH that this carries the multiplexing transmission block of a plurality of UE, if receive successfully, then return correctly and reply (ACK) to network side, the transmission block multiplexing to these a plurality of UE that collected carries out demultiplexing, according to the pairing UE sign of each grouped data wherein, therefrom obtain the grouped data of this UE; If take defeat, then return wrong responses (NACK) to network side, when network side receives the NACK of one or more UE, retransmit the multiplexing transmission piece of this UE group, the ACK of all UE in receiving this UE group.Thereby realized many UE multiplexing on the HSDPA channel.
But in this method, the situation of UE when receiving the HS-PDSCH of affiliated group that does not have transfer of data is not described, then there is not the UE of data in this group according to the group id among the HS-SCCH, the MAC-hs PDU that its place group is arranged on the companion data channel HS-PDSCH judges when need receive, because this UE does not know among the MAC-hs PDU of its place group whether one's own data are arranged, so can receive this companion data channel HS-PDSCH equally, and after taking defeat, return NACK to network side, then network side receives this NACK, can initiate network retransmits, and this moment is if having the UE of transfer of data all correctly to receive data in this UE group, then Ci Shi re-transmission is nonsensical, and, no matter be to return ACK, or NACK for the UE that does not have transfer of data in the UE group, all only can bring the unnecessary uplink interference power, waste Radio Resource.
Summary of the invention
In view of this, provide the transmission method of multiuser multiplexing among a kind of HSDPA among the present invention on the one hand, the transmission system and the device of multiuser multiplexing among a kind of HSDPA is provided on the other hand, can avoid unnecessary retransmission, save radio resources.
The transmission method of multiuser multiplexing among the HSDPA that is provided among the present invention comprises:
A, network side carry out multiplexing to the grouped data of a plurality of UE in the user equipment (UE) group, obtain multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent;
B, UE receive the multi-user multiplexing data from the affiliated UE group of network side, according to reception result to network side echo reply message; Network side receives the response message that the UE of transfer of data is arranged in this UE group, ignores the response message of the UE that does not have transfer of data;
C, network side determine whether that according to the response message of the UE that transfer of data is arranged that receives the multi-user multiplexing data that carries out this UE group retransmits.
The transmission system of multiuser multiplexing among the HSDPA that is provided among the present invention, comprise: network side and user equipment (UE), wherein, described network side is used for carrying out multiplexing to the grouped data of a plurality of UE of UE group, obtain multi-user multiplexing data, the multi-user multiplexing data that obtains is sent it, receive the response message that the UE of transfer of data is arranged in the UE group, the response message of ignoring the UE that does not have transfer of data, according to the response message of the UE that transfer of data is arranged that is received, determine whether to carry out multi-user multiplexing data and retransmit; Each UE in the described UE group is used for the multi-user multiplexing data from the affiliated UE group of network side is received, according to reception result to network side echo reply message.
The transmitting device of multiuser multiplexing among the HSDPA that is provided among the present invention comprises: network side apparatus and UE side device.
Wherein, network side apparatus comprises: multiplexing sending module, response message receiver module and Decision Control module, wherein,
Multiplexing sending module is used for the grouped data of a plurality of UE of user equipment (UE) group is carried out multiplexing, obtains multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent;
The response message receiver module is used for receiving the response message that the UE group has the UE of transfer of data, ignores the response message of the UE that does not have transfer of data; The response message of the UE that transfer of data is arranged that received is offered the Decision Control module;
The Decision Control module is used for correct response message and error response message according to the response message of the UE that transfer of data is arranged, determines whether that the multi-user multiplexing data that carries out this UE group retransmits.
UE side device comprises: data reception module and response message sending module, wherein,
Described data reception module is used for the multi-user multiplexing data of affiliated UE group is received, and according to the result who is received, sends answer signal to the response message sending module;
The response message sending module is used for according to the answer signal that is received, and sends response message to network side.
From such scheme as can be seen, network side is after the multi-user multiplexing data with the UE group sends among the present invention, receive only the response message that the UE of transfer of data is arranged in the UE group, and ignore the response message of the UE that does not have transfer of data, and according to the response message of the UE that transfer of data is arranged that is received, determine whether to carry out multi-user multiplexing data and retransmit, thereby avoided unnecessary retransmission, saved Radio Resource.
Description of drawings
Fig. 1 is the exemplary process diagram of the multiplexing transmission method of multi-user data among the HSDPA of the embodiment of the invention;
Fig. 2 is the timing relationship schematic diagram of each physical channel of HSDPA;
Fig. 3 is the structural representation of the multiplexing transmission system of multi-user data among the HSDPA of the embodiment of the invention.
Embodiment
The basic thought of the embodiment of the invention is: network side is after the multi-user multiplexing data with the UE group sends, receive only the response message that the UE of transfer of data is arranged in this group, and ignore the response message of the UE that does not have transfer of data, and according to the response message of the UE that transfer of data is arranged that is received, determine whether to carry out multi-user multiplexing data and retransmit, thereby avoid unnecessary retransmission.
During concrete the application, can also make the UE side when the multi-user multiplexing data to affiliated UE group receives, only when reception is wrong, return error response message to network side; And when reception is correct, judge whether one's own data are arranged in this multi-user multiplexing data earlier, if having, then return correct response message, if do not have, then not to network side echo reply message to network side.Report thereby reduce unnecessary response message, reduce uplink interference power.
Further, when the multi-user multiplexing data of UE group is data retransmission under the UE side is judged, judge whether oneself has correctly received this multi-user multiplexing data, if, then ignore processing to this multi-user multiplexing data, and not to network side echo reply message.Further reduce unnecessary response message and report, reduce uplink interference power.
Below in conjunction with accompanying drawing multi-user data among the HSDPA of the embodiment of the invention multiplexing transmission method and system are described in detail.
Referring to Fig. 1, Fig. 1 is the exemplary process diagram of the multiplexing transmission method of multi-user data among the HSDPA of the embodiment of the invention.This flow process comprises the steps:
Wherein, before the multi-user multiplexing data transmission of network side with the UE group, at first multi-user data is dispatched with multiplexing.Specifically comprise: a plurality of UE are arranged to a UE group, be specific identifier of this UE set of dispense, the grouped data of issuing a plurality of UE in this group is multiplexing in a MAC-hs protocol Data Unit (PDU), promptly form multi-user multiplexing data, then this multi-user multiplexing data is sent by HS-PDSCH.
The sign that always comprises multiplexing pairing each UE of grouped data among the multiplexing MAC-hs PDU, in order to distinguish the data of each UE, simultaneously, the structure of multiplexing MAC-hs PDU should make UE can distinguish the position of the data of different UEs, like this, UE can carry out demultiplexing to multiplexing MAC-hs PDU, and judges among the multiplexing MAC-hs PDU by the identification field of searching UE whether the data of oneself are arranged, if having then can navigate to oneself data segment.
For example, specifically dispatch with multiplexing method can for: at network side, after the MAC-d PDU of a plurality of UE enters the MAC-hs entity, at first by the priority of priority query's allocation units according to each MAC-dPDU, be assigned to buffer memory in the different priority queries, MAC-d PDU in the formation of same UE same priority is multiplexing in a MAC-hs PDU, afterwards, Multiplexing Unit is further multiplexing in a MAC-hs PDU with the MAC-hs PDU of the different priorities formation of different UEs in the same UE group, obtain multi-user multiplexing data, and, subsequently, transfer to the HARQ entity and transmit by a certain HARQ process of this UE group for it is provided with the group id of this UE group.Wherein, the MAC-hs PDU of network side different priorities formation of different UEs in same UE group is multiplexing in a MAC-hs PDU time, can number discern UE different in the same UE group and the different priorities formation of same UE with different priority queries, promptly the sign of UE can be priority query number; Also can be by newly-increased UE identification field in this MAC-hs PDU, to discern different UE in the same UE group, the UE identification field can be H-RNTI or the self-defining temporary mark of UE.Simultaneously, newly-increased be used for indicating UE this MAC-hs PDU the amount field of multiplexing MAC-hs PDU number, and fill field etc.Wherein, the sign that is used to distinguish the different priorities formation of same UE can still adopt priority query number.
With the MAC-hs PDU of different UEs multiplexing together after, add to fill field again.For the MAC-hs PDU and filling field that distinguishes each UE, the afterbody of MAC-hs PDU after this is multiplexing can increase by one and optionally fill pointer field, be used to indicate the original position of filling field, and a filling pointer mark PF, be used to indicate whether exist the filling pointer field.When filling field length more than or equal to the bit number summation of UE identification field and amount field, there is the filling pointer field in the FP indication; When filling field length less than the bit number summation of UE identification field and amount field, FP indicates and does not have the filling pointer field.Fill pointer mark PF and can be a bit preceding, the most last or appointment among this MAC-hs PDU after multiplexing.For how to carry out multi-user data is multiplexing, and other method can also be arranged, and repeats no more herein, but no matter adopts which kind of concrete multi-user data multiplexing method, and the present invention is suitable equally.
Again because UE is by the monitoring to the HS-SCCH channel, whether judge has data to need to receive on the HS-PDSCH of corresponding TTI, therefore in the implementation procedure of this step, network side also need send control information on the HS-SCCH channel, the group id of UE group and whether be sign such as data retransmission under the multi-user multiplexing data that can comprise in the companion data channel HS-SCCH in this control information being carried.According to 3GPP standard " TS 25.212; Multiplexing and channel coding (FDD) ", the HS-SCCH loaded information comprises: channel code collection information, modulation scheme information, transport block size information, HARQ procedural information, redundancy versions and planisphere version information, new data indication and high speed descending sharing channel Radio Network Temporary Identifier (H-RNTI).
During concrete the application, the UE lateral root is according to channel code collection information and modulation scheme information among the HS-SCCH that is monitored, and the information of the companion data channel HS-PDSCH that received is carried out buffer memory and receive handling; According to the H-RNTI among the HS-SCCH, judge whether companion data channel HS-PDSCH institute data carried by data is the data that need reception; According to the new data indication information, judge that whether companion data channel HS-PDSCH institute data carried by data is the data that retransmit etc.
During tradition was used, normally as the temporary mark of single UE, then UE judged according to this sign whether companion data channel HS-PDSCH institute data carried by data is the data that are transferred to oneself to the H-RNTI in the HS-SCCH information.But in the multi-user data multiplexing transmission, set UE group id can adopt structure the same with H-RNTI and mode, be the interim group id that H-RNTI can be used as the UE group, then UE judges according to this group id whether companion data channel HS-PDSCH institute data carried by data is the data of own affiliated UE group.
Wherein, network side is realized by sending HS-PDSCH subframe and HS-SCCH subframe by HS-PDSCH channel bearing data and by the HS-SCCH bear control information time.Specifically can be with reference to figure 2, Fig. 2 is the timing relationship schematic diagram of each physical channel of HSDPA.As shown in Figure 2, every the physical channel subframe takies 3 time slots, network side is before sending the HS-PDSCH subframe to UE, two time slots send the HS-SCCH subframe of carrying the required signaling of this HS-PDSCH subframe of demodulation earlier in advance, so that UE receives the HS-SCCH subframe earlier, according to information such as channel code collection in the HS-SCCH subframe and modulation schemes, to after the information of the companion data channel HS-PDSCH subframe that receives carry out processing such as buffer memory and reception.
Wherein,, be specifically as follows when the network side echo reply message according to reception result:, then return wrong responses signal NACK to network side if receive mistake; And/or, then return correct response message ACK to network side if receive correctly.Preferably, and/or if receive correct, then this multi-user multiplexing data is carried out demultiplexing, according to the pairing UE sign of each grouped data behind the demultiplexing, whether in this multi-user multiplexing data have one's own data, if having, then return correct response message ACK to network side if judging, if no, then not to network side echo reply message.
During specific implementation, UE is by monitoring the HS-SCCH channel, promptly receive the HS-SCCH subframe, according to the control information in the HS-SCCH subframe, judge whether the HS-PDSCH subframe of following in the corresponding TTI carries the multi-user multiplexing data of UE group under self, if have, then the multi-user multiplexing data to affiliated UE group receives, and promptly receives the HS-PDSCH subframe in the corresponding TTI.As shown in Figure 2, because the time delay of transmission of wireless signals, the time that UE receives the time ratio network side transmission HS-PDSCH subframe of corresponding HS-PDSCH subframe has delay slightly.When UE receives the HS-PDSCH subframe, generally all carry out Cyclic Redundancy Check, if the verification failure then receives mistake; If verification succeeds then receives correct.
Wherein, when receiving mistake, no matter be the UE that transfer of data is arranged in this UE group, still the UE that does not have transfer of data, owing to take defeat, therefore do not know whether the data that are transferred to oneself are arranged in this multi-user multiplexing data, therefore all need to return the NACK response message to network side; When reception is correct, then return correct response message ACK to network side.Preferably, and/or if receive correct, UE can continue to judge whether the data that are transferred to oneself are arranged in the multi-user multiplexing data, at this moment, need earlier the multi-user multiplexing data that is received to be carried out demultiplexing, according to the pairing UE sign of each grouped data in the multi-user multiplexing data behind the demultiplexing, judge whether one's own data are arranged in the multi-user multiplexing data.Wherein, UE is specifically as follows the process that multi-user multiplexing data carries out demultiplexing: receive the multi-user multiplexing data that obtains to belong to this UE group, be MAC-hs PDU, number from this MAC-hs PDU, isolate the MAC-hs PDU of the respective priority formation that belongs to this UE according to different priority queries.Perhaps, when the group id that each UE organizes according to the UE under it receives corresponding M AC-hs PDU and demultiplexing, UE reads the filling pointer mark FP among this MAC-hs PDU, if existing, the FP indication fills pointer field, then read the filling pointer field, and decompose this MAC-hs PDU, till arriving the original position of filling the indicated filling field of pointer field.If there is not the filling pointer field in FP indication, then directly decompose this MAC-hs PDU, and the length of statistics residue field, when the length of residue field during, stop decomposition less than the bit number summation of UE identification field and amount field.Each UE is by to the demultiplexing of the MAC-hs PDU that receives and the data that the UE identification field in this MAC-hs PDU obtains self.Concrete demultiplexing is corresponding with multiplexing method, at different multiplexing methods, other different Deplexing method is arranged also, repeats no more herein.
If behind the demultiplexing, the data that are transferred to oneself are arranged in the multi-user multiplexing data, then return the ACK response message to network side, if do not have, then do not return any response message to network side.
As shown in Figure 2, the UE side is after receiving HS-PDSCH during about 7.5 time slots, to network side transmission loading ACK/NACK response message, and the HS-DPCCH subframe of the CQI information that reports of UE.
According to the statistical information of HSDPA transmission, the probability that transfer of data is correct is 90%, and the probability of data transmission fault is 10%.So for the UE that does not have transfer of data, even feedback NACK response message, can be very not big to the uplink interference power influences yet.In addition and since the UE that does not have a transfer of data correct receive data after, can echo reply message, therefore effectively reduced uplink interference power.
In this step, when judge according to the HS-SCCH subframe in the corresponding TTI follow the HS-PDSCH subframe to carry the multi-user multiplexing data of UE group under self time, can further include: whether the multi-user multiplexing data of judging this UE group according to the HS-SCCH subframe is data retransmission, if data retransmission, judge then whether oneself has correctly received this multi-user multiplexing data, if, then ignore processing to this multi-user multiplexing data, and not to network side echo reply message; If not data retransmission, then carry out the above-mentioned operation that the multi-user multiplexing data of affiliated UE group is received.As seen, for the UE that transfer of data is arranged in the UE group, if this secondary data be data retransmission and correctly received data before, then also no longer to network side echo reply message, thereby further reduced uplink interference.
Because the multi-user multiplexing data of UE group is the data of at least two UE of same UE group to be dispatched and multiplexingly sent by network side together, therefore the data that comprise which UE in the multi-user multiplexing data of this UE group are that network side is known, therefore network side receive that UE returns carry the HS-DPCCH subframe of response message the time, can realize fully receiving only in the UE group response message of the UE of transfer of data is arranged, and ignore the response message of the UE that does not have transfer of data.Be to receive the ACK/NACK response message on the HS-DPCCH subframe of network side UE that transfer of data is only arranged in this UE group.
Wherein, when ignoring the response message of the UE that does not have transfer of data, can be the response message that do not receive the UE that does not have transfer of data; Can also for: receive the response message of the UE do not have transfer of data, but this response message do not carried out any processing.
Multi-user multiplexing data as if the group of the UE in the step 101 is a data retransmission, and then can also receive only in this step and retransmit preceding response message is the response message of the UE of error response message, is the response message of the UE of correct response message and ignore the preceding response message of re-transmission.
Wherein, when ignoring response message before retransmitting and be the response message of UE of correct response message, can for: do not receive retransmit before response message be the response message of the UE of correct response message; Can also for: response message is the response message of the UE of correct response message before receive retransmitting, but this response message is not carried out any processing.
Network side receives the HS-DPCCH subframe, according to ACK/NACK response message wherein, judges whether that all UE of transfer of data have correctly received the HS-PDSCH subframe, promptly receive correct and returned the ACK response message, if then transmission is correct, need not to retransmit; Otherwise, determine whether to carry out the re-transmission of corresponding data.
Wherein, determine whether that the method for carrying out the corresponding data re-transmission can comprise following two kinds at least:
Method one:, then determine to carry out the re-transmission of this multi-user multiplexing data, and return execution in step 101 if there is one or in the response message more than one NACK response message.
Preferably, can set in advance the number of times that allows the time that retransmits and allow to retransmit, and in time that default permission retransmits or number of times, this multi-user multiplexing data is retransmitted, in this UE group the response message of the UE of transfer of data being arranged all is correct response message.Be repeated execution of steps 101 to step 104, in this UE group the response message of the UE of transfer of data being arranged all is correct response message.If above still having response message behind re-transmission time that allows or the number of times is the UE of error response message, then finish this transmission, no longer retransmit, perhaps, preferably, can allow network side is that the data of the UE of error response message reschedule transmission to response message, promptly dispatches by new data and carry out operation back such as chnnel coding again to transmit by new data.
Wherein, the number of retransmissions that sets can specifically can be decided according to actual conditions for 0 time, 1 time or inferior greater than 1 integer.The re-transmission time that sets also can decide according to actual conditions.
Wherein, number of retransmissions is 0 o'clock, and expression is only once transmitted and do not retransmitted multi-user multiplexing data, even promptly there is one or more than one NACK response message in the response message, does not also carry out the re-transmission of this multi-user multiplexing data.Preferably, can allow network side is that the data of the UE of error response message reschedule transmission to response message, promptly dispatches by new data and carry out operation back such as chnnel coding again to transmit by new data.
When number of retransmissions is 1 time, expression only allows once to retransmit to multi-user multiplexing data, after even certain multi-user multiplexing data transmits for the first time, there is one or in the response message more than one NACK response message, then network side is determined this multi-user multiplexing data is once retransmitted, return execution in step 101, still have one or in the response message of back, network side or no longer this multi-user multiplexing data is retransmitted more than one NACK response message if retransmit for the first time; Be that the data of the UE of error response message reschedule transmission perhaps, promptly dispatch and carry out operation back such as chnnel coding again and transmit by new data by new data to respective acknowledgement message.
Method two: set in advance the re-transmission threshold value, have only when the number of NACK response message in the response message during greater than this default re-transmission threshold value, network side is just determined this multi-user multiplexing data is retransmitted, and returns execution in step 101.Otherwise, network side or no longer this multi-user multiplexing data is retransmitted; Be that the data of the UE of error response message reschedule transmission perhaps, promptly dispatch and carry out operation back such as chnnel coding again and transmit by new data by new data to respective acknowledgement message.
Method three: network side receive one or more than one NACK response message after in the regular hour scope, judge whether current radio condition is fit to this multi-user multiplexing data of transmission, if the suitable networks side is promptly determined this multi-user multiplexing data is retransmitted, return execution in step 101.Otherwise, network side or no longer this multi-user multiplexing data is retransmitted; Be that the data of the UE of error response message reschedule transmission perhaps, promptly dispatch and carry out operation back such as chnnel coding again and transmit by new data by new data to respective acknowledgement message.
Wherein, whether current radio condition is fit to this multi-user multiplexing data of transmission is meant: network side is according to the CQI information of each UE feedback in this UE group, determine to transmit again the required coded modulation scheme of this multi-user multiplexing data, if the Radio Resource that needs in order to transmit this multi-user multiplexing data again such as channel code, descending power etc. during greater than default threshold value, judge that then current radio condition is not suitable for transmitting this multi-user multiplexing data; Otherwise, judge that current radio condition is fit to this multi-user multiplexing data of transmission.
In addition, method three can also be used in combination with method one or method two.
As seen, step 102 can also be handled according to prior art from above-mentioned flow process, and promptly the UE that does not have transfer of data in the multi-user multiplexing data of UE group also sends correct response message to network side when reception is correct.Because network side is ignored the response message of the UE that does not have transfer of data in the step 103, therefore can not cause unnecessary retransmission yet.In addition, the UE that correctly receives multi-user multiplexing data in the step 102 also can receive data retransmission again, sends correct response message to network side after correct then the reception.Then can receive this correct response message once more in the step 103, also can ignore the preceding response message of re-transmission is the response message of the UE of correct response message.
In concrete the application, allow to carry out the UE of multi-user data multiplexing transmission when monitoring the HS-SCCH channel, further comprise: judge whether the H-RNTI in the HS-SCCH information is consistent with the temporary mark of self, be whether H-RNTI in the HS-SCCH information represents to follow the data of the data of channel HS-PDSCH for this single UE, if, then UE according to prior art to processing such as the HS-PDSCH subframe receive.
The function of the network side in the method flow shown in Figure 1, when specific implementation, generally the Node B by network side realizes.
More than the method in the embodiment of the invention is described in detail, below the multiplexing transmission system of multi-user data among the HSDPA in the embodiment of the invention is described in detail.
Referring to Fig. 3, Fig. 3 is based on the structural representation of the multiplexing transmission system of multi-user data among the HSDPA of method shown in Figure 1 in the embodiment of the invention.As shown in Figure 3, this system comprises: network side 310 and UE320 group.
Wherein, network side 310 is used for the grouped data of a plurality of UE of UE group is carried out multiplexing, obtains multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent; Receive the response message that the UE320 of transfer of data is arranged in the UE group, ignore the response message of the UE320 that does not have transfer of data; According to the response message of the UE320 that transfer of data is arranged that is received, determine whether to carry out multi-user multiplexing data and retransmit.
Wherein, UE320 is used for the multi-user multiplexing data of affiliated UE group is received, according to reception result to network side 310 echo reply message.Be specifically as follows:, then return error response message to network side 310 if receive mistake; And/or, then return correct response message to network side 310 if receive correctly.Preferably, when reception is correct, this multi-user multiplexing data is carried out demultiplexing, according to the pairing UE sign of each grouped data behind the demultiplexing, whether in this multi-user multiplexing data have one's own data, if having, then return correct response message to network side 310 if judging, if no, then can not return any response message to network side 310.
As shown in Figure 3, during specific implementation, can in network side 310, network side apparatus be set, and this network side apparatus comprises: multiplexing sending module 311, response message receiver module 312 and Decision Control module 313 promptly comprise in this network side: multiplexing sending module 311, response message receiver module 312 and Decision Control module 313.
Wherein, multiplexing sending module 311 is used for the grouped data of a plurality of UE of UE group is carried out multiplexing, obtains multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent, and is used for also that simultaneously control information is carried on the HS-SCCH channel and sends.
Response message receiver module 312 is used for receiving the response message that the UE group has the UE320 of transfer of data, ignores the response message of the UE320 that does not have transfer of data; The response message of the UE320 that transfer of data is arranged that received is offered Decision Control module 313.
Decision Control module 313 is used for correct response message and the error response message according to the response message of the UE320 that transfer of data is arranged, determines whether that the multi-user multiplexing data that carries out this UE group retransmits.
Wherein, when Decision Control module 313 is determined to carry out the multi-user multiplexing data re-transmission of UE group, be further used for: send multiplexing re-transmitted signal to multiplexing sending module 311; And/or Decision Control module 313 determines not carry out UE group multi-user multiplexing datas and retransmits, and carries out response message when being the data re-transmission of UE320 of error response message, is further used for: send the part re-transmitted signal to multiplexing sending module 311.
Then multiplexing sending module 311 is further used for: according to the multiplexing re-transmitted signal from Decision Control module 313, the multi-user multiplexing data that UE is organized resends away; And/or, be that the data of the UE320 of error response message reschedule according to new data and chnnel coding operation back sends by new data with response message according to part re-transmitted signal from Decision Control module 313.
Response message receiver module 312 is further used for: when data re-transmission, receiving only and retransmitting preceding response message is the response message of the UE320 of error response message.
Simultaneously, also UE side device can be set in UE320, this UE side device specifically comprises: data reception module and response message sending module 323 wherein, promptly comprise among this UE320: data reception module and response message sending module 323.
Wherein, data reception module is used for the multi-user multiplexing data of affiliated UE group is received, and according to the result who is received, sends answer signal to response message sending module 323.
Response message sending module 323 is used for according to the answer signal that is received, and sends response message to network side 310.Wherein, data reception module can specifically comprise: monitor submodule 321, Data Receiving submodule 322 and response message sending module 323.
Wherein, monitoring submodule 321 is used for sending the signal that indication receives to Data Receiving submodule 322 when listening to the multi-user multiplexing data of affiliated UE group.
Response message sending module 323 is used for the signal of basis from the misdirection of Data Receiving submodule 322, sends error response messages to network side 310; According to signal, send correct response message to network side 310 from the indicating correct of Data Receiving submodule 322.
Wherein, monitor submodule 321 and be further used for: when the multi-user multiplexing data of UE group is data retransmission under listening to, send the signal that indication retransmits to Data Receiving submodule 322.
In the system shown in Figure 3, network side 310 can specifically refer to the Node B of network side.And in this system, can be by the multi-user multiplexing data of HS-PDSCH channel bearing UE group; Follow the required signaling of channel HS-PDSCH by the demodulation of HS-SCCH channel bearing; Carry the correct/error response message that UE returns by HS-DPCCH.The specific implementation process is consistent with the description in the flow process shown in Figure 1, and the grouped data of a plurality of UE in the UE group is carried out multiplexing method, and multi-user multiplexing data is carried out the method for demultiplexing also can be consistent with the description in the method flow shown in Figure 1.
In said method embodiment and the system embodiment, UE can be successional to the monitoring of HS-SCCH channel, and is also can right and wrong successional.In the prior art, monitor the power consumption that the HS-SCCH channel is brought continuously in order to reduce UE, usually adopt noncontinuity to monitor, promptly UE is set discontinuous receiving cycle, in a period of time of each discontinuous receiving cycle, receive corresponding HS-SCCH subframe, then do not receive the HS-SCCH subframe At All Other Times at discontinuous receiving cycle.In the embodiment of the invention, in order to reach the purpose that noncontinuity is monitored, it is also identical to set the time that receives the HS-SCCH subframe in identical discontinuous receiving cycle and the discontinuous receiving cycle to the UE of same UE group, the UE of this UE group monitors the HS-SCCH channel simultaneously according to the discontinuous receiving cycle that sets, promptly the UE of this UE group receives the HS-SCCH subframe synchronously, so that realize the purpose of multi-user data multiplexing transmission.
In particular cases, in the foregoing description, when the permission of setting retransmitted the time or allow number of retransmissions to be 0, network side only once transmitted multi-user multiplexing data and does not retransmit at this moment, so network side can not receive the response message of all UE in the UE group; Correspondingly, all UE in the UE group also can be to network side echo reply message.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. the transmission method of multiuser multiplexing during a high speed downlink packet inserts is characterized in that this method comprises:
A, network side carry out multiplexing to the grouped data of a plurality of UE in the user equipment (UE) group, obtain multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent;
UE in B, the UE group receives the multi-user multiplexing data from the affiliated UE group of network side, according to reception result to network side echo reply message; Network side receives the response message that the UE of transfer of data is arranged in this UE group, ignores the response message of the UE that does not have transfer of data;
C, network side determine whether that according to the response message of the UE that transfer of data is arranged that receives the multi-user multiplexing data that carries out this UE group retransmits.
2. the method for claim 1 is characterized in that, steps A further comprises: the transmitting control information on high speed share control channel that each UE monitors in the UE group;
Then UE receives the multi-user multiplexing data that affiliated UE organizes among the step B, is specially to network side echo reply message according to reception result:
UE monitors High-Speed Shared Control Channel, according to the control information that listens to, whether obtain current multi-user multiplexing data is the multi-user multiplexing data of affiliated UE group, and the high-speed physical downlink shared channel (HS-PDSCH) of the multi-user multiplexing data of UE group under transmitting received, if receive mistake, then return error response message to network side;
And/or if receive correct, then this multi-user multiplexing data is carried out demultiplexing, according to the pairing UE sign of each grouped data behind the demultiplexing, judge whether one's own data are arranged in this multi-user multiplexing data, if have, then return correct response message, if do not have, then not to network side echo reply message to network side.
3. method as claimed in claim 2 is characterized in that, UE receives the high-speed physical downlink shared channel (HS-PDSCH) of the multi-user multiplexing data of UE group under transmitting and further comprises before:
UE is according to the control information that listens to, whether the multi-user multiplexing data of UE group is data retransmission under obtaining, if data retransmission, judge then whether oneself has correctly received this multi-user multiplexing data, if, then ignore processing to the high-speed physical downlink shared channel (HS-PDSCH) of transmission multi-user multiplexing data, and not to network side echo reply message; If not data retransmission, then carry out the described operation that the high-speed physical downlink shared channel (HS-PDSCH) of the multi-user multiplexing data of UE group under transmitting is received.
4. method as claimed in claim 2, it is characterized in that, described UE monitors High-Speed Shared Control Channel: UE carries out continuity to High-Speed Shared Control Channel and monitors, and all UE of perhaps same UE group monitor according to same default noncontinuity receiving cycle simultaneously to High-Speed Shared Control Channel.
5. the method for claim 1 is characterized in that, the response message of ignoring the UE that does not have transfer of data described in the step B is: the response message that does not receive the UE that does not have transfer of data; Perhaps be: receive the response message of the UE that does not have transfer of data, but this response message is not carried out any processing.
6. as each described method in the claim 1 to 5, it is characterized in that step C specifically comprises:
Network side receives the response message of the UE that transfer of data is arranged, if all response messages all are correct response message, then transmission success;
If wrong response message in the response message, then time or the capable steps A of number of times internal return receipt that retransmits in default permission all is correct response message up to the reception response message; If above still having error response message behind time that allows or the number of times, then finish this transmission, no longer retransmitting, is that the data of the UE of error response message reschedule according to new data and transmit by new data chnnel coding operation back to response message perhaps.
7. method as claimed in claim 6, it is characterized in that, network side is when retransmitting multi-user multiplexing data, and network side described in the step B receives in the UE group has the response message of the UE of transfer of data to be: response message was the response message of the UE of error response message before network side received only and retransmits.
8. as each described method in the claim 1 to 5, it is characterized in that, set in advance the re-transmission threshold value; Then step C specifically comprises:
Network side receives the response message of the UE that transfer of data is arranged, if all response messages all are correct response message, then transmission success;
If wrong response message in the response message, whether the number of then misjudgment response message is greater than default re-transmission threshold value, if, then return execution in step A, otherwise, finishing this transmission, no longer retransmit, is that the data of the UE of error response message reschedule according to new data and transmit by new data chnnel coding operation back to response message perhaps.
9. the method described in claim 1 to 5 is characterized in that, step C specifically comprises:
Network side receives the response message of the UE that transfer of data is arranged, if all response messages all are correct response message, then transmission success;
If wrong response message in the response message judges that then whether current radio condition is fit to this multi-user multiplexing data of transmission, if be fit to, then returns execution in step 101; Otherwise, finish this transmission, no longer retransmit, perhaps to response message be the data of the UE of error response message reschedule according to new data and the chnnel coding operation after, transmit by new data.
10. method as claimed in claim 9 is characterized in that, further comprises among the step B: the UE in the UE group is to network side Return Channel quality indicator (CQI) information;
Then describedly judge that whether current radio condition is fit to this multi-user multiplexing data of transmission and is specially:
Network side is according to the CQI information of each UE feedback in this UE group, whether determine to transmit again the required Radio Resource that comprises channel code or descending power of this multi-user multiplexing data greater than default threshold value, if judge that then current radio condition is not suitable for transmitting this multi-user multiplexing data; Otherwise, judge that current radio condition is fit to this multi-user multiplexing data of transmission.
11. the transmission system of multiuser multiplexing during a high speed downlink packet inserts is characterized in that this system comprises: network side and user equipment (UE) group, wherein,
Described network side, be used for carrying out the grouped data of a plurality of UE of UE group multiplexing, obtain multi-user multiplexing data, the multi-user multiplexing data that obtains is sent, receive the response message that the UE of transfer of data is arranged in the UE group, the response message of ignoring the UE that does not have transfer of data according to the response message of the UE that transfer of data is arranged that is received, determines whether to carry out multi-user multiplexing data and retransmits;
Each UE in the described UE group is used to receive the multi-user multiplexing data from the affiliated UE group of network side, according to reception result to network side echo reply message.
12. system as claimed in claim 11 is characterized in that, described network side comprises: multiplexing sending module, response message receiver module and Decision Control module, wherein,
Multiplexing sending module is used for the grouped data of a plurality of UE of user equipment (UE) group is carried out multiplexing, obtains multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent;
The response message receiver module is used for receiving the response message that the UE group has the UE of transfer of data, ignores the response message of the UE that does not have transfer of data; The response message of the UE that transfer of data is arranged that received is offered the Decision Control module;
The Decision Control module is used for correct response message and error response message according to the response message of the UE that transfer of data is arranged, determines whether that the multi-user multiplexing data that carries out this UE group retransmits.
13., it is characterized in that each UE in the described UE group comprises as claim 11 or 12 described systems: data reception module and response message sending module, wherein,
Described data reception module is used for the multi-user multiplexing data of affiliated UE group is received, and according to the result who is received, sends answer signal to the response message sending module;
The response message sending module is used for according to the answer signal that is received, and sends response message to network side.
14. system as claimed in claim 13 is characterized in that, the data reception module among the described UE comprises: monitor submodule and Data Receiving submodule, wherein,
Monitor submodule, when being used for the multi-user multiplexing data of UE group under listening to, send the signal that indication receives to the Data Receiving submodule;
The Data Receiving submodule is used for according to the signal from the indication reception of monitoring submodule, and the multi-user multiplexing data that affiliated UE is organized receives, if receive mistake, then sends the signal of misdirection to the response message sending module; And/or if receive correct, then this multi-user multiplexing data is carried out demultiplexing, according to the pairing UE sign of each grouped data behind the demultiplexing, judge whether one's own data are arranged in this multi-user multiplexing data, if have, then send the signal of indicating correct,, then do not send any signal to the response message sending module if do not have to the response message sending module;
The response message sending module is used for the signal of basis from the misdirection of Data Receiving submodule, sends error response message to network side; Signal according to from the indicating correct of Data Receiving submodule sends correct response message to network side.
15. the network side apparatus during a high speed downlink packet inserts in the multiuser multiplexing transmission is characterized in that this network side apparatus comprises: multiplexing sending module, response message receiver module and Decision Control module, wherein,
Multiplexing sending module is used for the grouped data of a plurality of UE of user equipment (UE) group is carried out multiplexing, obtains multi-user multiplexing data, and the multi-user multiplexing data that obtains is sent;
The response message receiver module is used for receiving the response message that the UE group has the UE of transfer of data, ignores the response message of the UE that does not have transfer of data; The response message of the UE that transfer of data is arranged that received is offered the Decision Control module;
The Decision Control module is used for correct response message and error response message according to the response message of the UE that transfer of data is arranged, determines whether that the multi-user multiplexing data that carries out this UE group retransmits.
16. network side apparatus as claimed in claim 15 is characterized in that, when described Decision Control module is determined to carry out the multi-user multiplexing data re-transmission of UE group, is further used for sending multiplexing re-transmitted signal to multiplexing sending module; And/or described Decision Control module determines not carry out UE group multi-user multiplexing data and retransmits, and carries out response message when being the data re-transmission of UE of error response message, is further used for sending the part re-transmitted signal to multiplexing sending module;
Then multiplexing sending module is further used for: according to the multiplexing re-transmitted signal from the Decision Control module, the multi-user multiplexing data that UE is organized resends away; And/or, be that the data of the UE of error response message reschedule according to new data and chnnel coding operation back sends by new data with response message according to part re-transmitted signal from the Decision Control module;
The response message receiver module is further used for: when data re-transmission, receiving only and retransmitting preceding response message is the response message of the UE of error response message.
17. the user equipment (UE) side device during a high speed downlink packet inserts in the multiuser multiplexing transmission is characterized in that this UE side device comprises: data reception module and response message sending module, wherein,
Described data reception module is used for the multi-user multiplexing data of affiliated UE group is received, and according to the result who is received, sends answer signal to the response message sending module;
The response message sending module is used for according to the answer signal that is received, and sends response message to network side.
18. UE side device as claimed in claim 17 is characterized in that described data reception module comprises: monitor submodule and Data Receiving submodule, wherein,
Monitor submodule, when being used for the multi-user multiplexing data of UE group under listening to, send the signal that indication receives to the Data Receiving submodule;
The Data Receiving submodule is used for according to the signal from the indication reception of monitoring submodule, and the multi-user multiplexing data that affiliated UE is organized receives, if receive mistake, then sends the signal of misdirection to the response message sending module; And/or if receive correct, then this multi-user multiplexing data is carried out demultiplexing, according to the pairing UE sign of each grouped data behind the demultiplexing, judge whether one's own data are arranged in this multi-user multiplexing data, if have, then send the signal of indicating correct,, then do not send any signal to the response message sending module if do not have to the response message sending module;
The response message sending module is used for the signal of basis from the misdirection of Data Receiving submodule, sends error response message to network side; Signal according to from the indicating correct of Data Receiving submodule sends correct response message to network side.
19. user-side device as claimed in claim 18 is characterized in that, described monitoring submodule is further used for: when the multi-user multiplexing data of UE group is data retransmission under listening to, send the signal that indication retransmits to the Data Receiving submodule;
Described Data Receiving submodule is further used for: according to the signal that retransmits from the indication of monitoring submodule, judge whether oneself has correctly received this multi-user multiplexing data, if, then ignore processing, and do not send any signal to the response message sending module to this multi-user multiplexing data; If not data retransmission, then carry out the described operation that the multi-user multiplexing data of affiliated UE group is received.
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| CN100355231C (en) * | 2003-12-19 | 2007-12-12 | 上海贝尔阿尔卡特股份有限公司 | Data transmission method having HARQ in multi-carrier system |
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| WO2013131264A1 (en) * | 2012-03-08 | 2013-09-12 | Renesas Mobile Corporation | Group sps design for low cost mtc devices |
| CN103108215A (en) * | 2013-02-01 | 2013-05-15 | 奥维通信股份有限公司 | Multiplexer data transmission method and device |
| CN106900059A (en) * | 2015-12-18 | 2017-06-27 | 中兴通讯股份有限公司 | The sending method and device of downlink information |
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