CN102468950B - Information transmission method, terminal, base station and communication system - Google Patents

Information transmission method, terminal, base station and communication system Download PDF

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CN102468950B
CN102468950B CN201010607461.7A CN201010607461A CN102468950B CN 102468950 B CN102468950 B CN 102468950B CN 201010607461 A CN201010607461 A CN 201010607461A CN 102468950 B CN102468950 B CN 102468950B
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response message
descending
grant
sub
frame
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CN102468950A (en
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成艳
吕永霞
李博
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2012/070305 priority patent/WO2012065577A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The invention discloses an information transmission method, comprising the steps of: user equipment UE receives uplink indication UL grant from a base station, wherein UL grant includes the maximum value N in a set {Ni, i=1, 2, ..., C}; C is the number of downlink cell carriers corresponding to UE, and is not less than 2; Ni is the sum of the number of downlink subframes bearing the physical downlink share channel PDSCH of the UE and the number of the downlink subframes bearing the physical downlink control channel PDCCH of the UE, wherein the downlink subframes belong to the downlink subframes of the downlink cell carrier i in the set of the related downlink subframes; the PDCCH is used for indicating to release the downlink semi-persisent scheduling service SPS of the UE; the set of the related downlink subframes corresponds to the uplink subframes corresponding to the UL grant; the UE determines the response information according to the maximum value N, and transmits the response information to the base station by the physical uplink channel. The invention also discloses a base station, a terminal and a communication system. The scheme provided by the invention can effectively achieve the transmission of the response information on the physical uplink channel.

Description

Information transferring method, terminal, base station and communication system
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of information transferring method, terminal, base station and communication system.
Background technology
In hybrid automatic repeat-request (Hybrid Automatic Repeat Request, HARQ) technology, data receiver needs to data receiver feedback response message, to confirm whether data correctly receive.At third generation collaborative project (3 rdgeneration Partnership Project, 3GPP) Long Term Evolution (Long TermEvolution, LTE) in system, HARQ response message is mainly through Physical Uplink Control Channel (PhysicalUplink Control Channel, PUCCH) or Physical Uplink Shared Channel (Physical Uplink SharedChannel, PUSCH) to base station feedback.
At senior Long Term Evolution (Long Term Evolution-Advanced, LTE-A) in system, introduce carrier aggregation (Carrier Aggregation) technology, also claim spectrum aggregating (Spectrum Aggregation) technology or wideband extension (Bandwidth Extension) technology.In carrier aggregation technology, the frequency spectrum of two or more member carrier (Component Carrier) is grouped together in together to obtain wider transmission bandwidth.In lte-a system, owing to introducing carrier aggregation technology, as subscriber equipment (User Equipment, when UE) accessing multiple member carrier downlink data receiving simultaneously, to Physical Downlink Shared Channel (the Physical Downlink Shared Channel each downlink member carrier carrying described UE, PDSCH) transmit, or carry indicating downlink semi-persistent scheduling service (the Semi-Persistent Scheduling of described UE, SPS) Physical Downlink Control Channel (the Physical Downlink Control Channel discharged, PDCCH) all corresponding response message to be fed back.
In the prior art, in lte-a system, can not row channel reporting response message physically effectively.
Summary of the invention
Embodiments provide a kind of information transferring method, terminal, base station and communication system, can be implemented in response information transmission on physical uplink channel.
Embodiments provide a kind of information transferring method, comprising: UE receives the up instruction UL grant that base station sends, and described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number carrying the descending sub frame of the Physical Downlink Shared Channel PDSCH of described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding; Described UE determines the response message that described sub-frame of uplink carries described response message to be sent to described base station by physical uplink channel according to described maximum N.
The embodiment of the present invention additionally provides a kind of information transferring method, comprising: base station comprises set { N at UL grant i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding; Described UL grant is sent to UE by base station in descending sub frame.
The embodiment of the present invention additionally provides a kind of terminal, comprising: receiving element, and for receiving the UL grant that base station sends, described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C for 1 number stating downlink member carrier corresponding to UE, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding; Determining unit, the maximum N for receiving according to described receiving element determines the response message that described sub-frame of uplink carries; Transmitting element, sends to described base station for the response message described determining unit determined by physical uplink channel.
The embodiment of the present invention additionally provides a kind of base station, comprising: generation unit, and for generating UL grant, described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding; Transmitting element, for sending to user equipment (UE) by described UL grant in descending sub frame.
The embodiment of the present invention additionally provides a kind of communication system, comprises terminal that the embodiment of the present invention provides and the base station that the embodiment of the present invention provides.
The embodiment of the present invention additionally provides a kind of information transferring method, comprise UE receive base station send ULgrant, comprise in described UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in descending association sub-frame set, and M is the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
The embodiment of the present invention additionally provides a kind of terminal, comprising: receiving element, for receive base station send UL grant, comprise in described UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding; Determining unit, for determining response message according to the maximum N ' received; Transmitting element, for response message that described determining unit is determined physically row channel send to described base station.
According to the scheme that the embodiment of the present invention provides, the set { N that the UL grant that UE can be sent by base station comprises i, i=1,2 ..., the maximum N in C} or set N ' i, i=1,2 ..., the maximum N ' in M} determines the response message needing transmission, according to the scheme that the embodiment of the present invention provides, effectively can realize response message row channel physically.
Accompanying drawing explanation
Figure 1 shows that the schematic flow sheet of a kind of information transferring method that the embodiment of the present invention provides;
Figure 2 shows that the schematic flow sheet of the another kind of information transferring method that the embodiment of the present invention provides;
Figure 3 shows that the schematic flow sheet of the another kind of information transferring method that the embodiment of the present invention provides;
Figure 4 shows that the schematic flow sheet of another information transferring method that the embodiment of the present invention provides;
Figure 5 shows that the structural representation of a kind of communication system that the embodiment of the present invention provides;
Figure 6 shows that the structural representation of a kind of terminal that the embodiment of the present invention provides;
Figure 7 shows that the structural representation of a kind of base station that the embodiment of the present invention provides;
Figure 8 shows that the schematic flow sheet of the another kind of information transferring method that the embodiment of the present invention provides;
Figure 9 shows that the schematic flow sheet of the another kind of information transferring method that the embodiment of the present invention provides;
Figure 10 shows that the structural representation of the another kind of communication system that the embodiment of the present invention provides;
Figure 11 shows that the structural representation of the another kind of terminal that the embodiment of the present invention provides;
Figure 12 shows that the structural representation of the another kind of base station that the embodiment of the present invention provides.
Embodiment
In order to make concrete technical scheme of the present invention, goal of the invention clearly, be described further below in conjunction with concrete execution mode and accompanying drawing.
In 3GPP LTE system, comprise Frequency Division Duplexing (FDD) (Frequency Division Duplexing, FDD) and time division duplex (Time Division Duplexing, TDD) two kinds of modes.In LTE TDD system, a frequency channels sends and receives, but transmission and reception separate in time, namely receive and send the different time-gap using same frequency carrier.In LTE TDD system, support different ratio of uplink subframe to downlink subframe, thus can according to different types of service, adjustment ratio of uplink subframe to downlink subframe, meets the asymmetrical business demand of up-downgoing.LTE TDD system comprises 7 kinds of ratio of uplink subframe to downlink subframe, and as shown in table 1, wherein D represents descending sub frame, and U represents sub-frame of uplink, and S represents special subframe.
Table 1
As can be seen from Table 1, in ratio of uplink subframe to downlink subframe 1 to 5, the number of descending sub frame is more than the number of sub-frame of uplink, and thus, the response message that can there is transfer of data on multiple descending sub frame corresponding needs to feed back on same sub-frame of uplink.Response message can comprise confirmation response (Acknowledge usually, ACK), deny replying (Negative-Acknowledge, NACK), when feeding back response message, response message can feed back by carrying out chnnel coding to the response message bit of feedback.In 3GPP LTE system, UE needs the response message of the PDSCH carried at sub-frame of uplink n feeding back downlink subframe n-k or is used to indicate the response message of the PDCCH that descending SPS discharges.The value of k is as shown in association sub-frame set descending in table 2 (Downlink association set) K, and descending association sub-frame set K is the descending association sub-frame set of sub-frame of uplink in each ratio of uplink subframe to downlink subframe.Wherein, K:{k 0, k 1... k m-1.Such as, in ratio of uplink subframe to downlink subframe 1, the descending association sub-frame set K:{7 of corresponding sub-frame of uplink 2, the value of 6}, M=2, k can be k 0=7, or k 1=6.In other sub-frame of uplink of ratio of uplink subframe to downlink subframe 1, and in other ratio of uplink subframe to downlink subframe, can according to the value determining k shown in table 2.
It should be noted that, all subframes of descending association sub-frame set refer to all descending sub frames that descending association sub-frame set K comprises.For example, in ratio of uplink subframe to downlink subframe 1, all descending sub frames of the descending association sub-frame set of corresponding sub-frame of uplink 2 are descending sub frame n-7 and descending sub frame n-6.In ratio of uplink subframe to downlink subframe 2, all descending sub frames that the descending association subframe of corresponding sub-frame of uplink 2 combines comprise descending sub frame n-8, descending sub frame n-7, descending sub frame n-4 and descending sub frame n-6.Other situations can be by that analogy.
In all embodiments of the present invention, the corresponding specific descending association sub-frame set of specific sub-frame of uplink, the descending association sub-frame set that sub-frame of uplink is corresponding can refer to the set of all descending sub frame compositions that the response message of descending sub frame transmits in same sub-frame of uplink, namely the response message of all descending sub frames transmits in same sub-frame of uplink, and the set of these all descending sub frame compositions is descending association sub-frame set corresponding to this sub-frame of uplink.In the embodiment of the present invention, the descending association sub-frame set that under each ratio of uplink subframe to downlink subframe, each sub-frame of uplink is corresponding can be as shown in table 2, also can be alternate manner, the descending association sub-frame set that such as, under each ratio of uplink subframe to downlink subframe each sub-frame of uplink is corresponding, for deducting the set after special subframe (S) in each descending association sub-frame set shown in table 2, does not namely comprise the descending association sub-frame set of special subframe.Such as, during ratio of uplink subframe to downlink subframe 2, subframe 1 and subframe 6 are special subframe, then the descending association sub-frame set { 8 of sub-frame of uplink 2 correspondence as shown in table 2,7, after 4,6} deducts special subframe, set is for { 8,7,4}, { the association descending sub frame set of sub-frame of uplink 2 correspondence when 8,7,4} also can be described as ratio of uplink subframe to downlink subframe 2.Special subframe in the embodiment of the present invention can refer to comprise descending pilot frequency time slot (Downlink Pilot Timeslot; DwPTS), interval (guard period is protected; and the special subframe in uplink pilot time slot (Uplink Pilot Timeslot, UpPTS) three territories GP).
In the embodiment of the present invention, descending the associate sub-frame set corresponding with sub-frame of uplink i also can be described as the bundled window (bundling window) corresponding with sub-frame of uplink i, or the bundled window of the response message corresponding with sub-frame of uplink i.
The descending association sub-frame set K:{k of table 2 0, k 1... k m-1}
As can be seen from Table 2, in ratio of uplink subframe to downlink subframe 1 to 5, all there is the situation that a sub-frame of uplink need feed back the response message of multiple descending sub frame.Such as, in ratio of uplink subframe to downlink subframe 2, UE needs the response message feeding back 4 descending sub frames in sub-frame of uplink 2 and sub-frame of uplink 7.
Lte-a system is the further evolution of 3GPP LTE system and the system of enhancing.Therefore, in lte-a system, in TDD mode, also can communicate according to the ratio of uplink subframe to downlink subframe shown in table 1, and the PDSCH response message that can carry at sub-frame of uplink n as shown in table 2 feedback subframe n-k, or the response message being used to indicate the PDCCH that descending SPS discharges carried.Under LTE-A TDD system carrier aggregation, each descending sub frame n-k associated with sub-frame of uplink n as shown in table 2 has multiple descending carrier, therefore, needs the response message of the multiple descending carriers feeding back multiple descending sub frame at a sub-frame of uplink.
For in lte-a system, report response message on effectively physically in row channel, embodiments provide a kind of information transferring method, as shown in Figure 1, the method comprises:
Step 101:UE receives the up instruction (UL grant) that base station sends, and described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number carrying the descending sub frame of the Physical Downlink Shared Channel PDSCH of described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
It should be noted that, the downlink member carrier in the embodiment of the present invention also can be called downlink member community (cell), and namely C can be the number of downlink member community.Member carrier also can be described as member community, such as main member carrier (PCC, Primary Component Carrier) also can be described as main plot (Pcell, Primarycell), auxiliary member carrier (SCC, Secondary Component Carrier) also can be described as auxiliary community (Scell, Secondary Cell).That PCC or SCC also can be described as Serving cell (Serving Cell).
In embodiments of the present invention, according to carrier aggregation technology, can configure multiple downlink member carrier, multiple downlink member carriers of configuration can form downlink member carrier set, and in embodiments of the present invention, C can be the number of the downlink member carrier of configuration.For downlink member carrier i, corresponding descending association sub-frame set K can be had, such as shown in table 2, also can be alternate manner, such as, for deducting the set after descending special subframe (special subframe) in each descending association sub-frame set shown in table 2.For a downlink member carrier i, N iequal in all descending sub frames that this downlink member carrier i comprises at descending association sub-frame set K, the number of the descending sub frame of the number of carrying the descending sub frame of PDSCH and the PDCCH carrying instruction SPS release and.
In embodiments of the present invention, { N is gathered i, i=1,2 ..., C} be all downlink member carriers in all descending sub frames of descending association sub-frame set, carry the descending sub frame of PDSCH number and carry instruction SPS release PDCCH descending sub frame number with composition set.At set { N i, i=1,2 ..., in C}, according to the value of C, i.e. the number of downlink member carrier, known exist C value N in this set 1, N 2... N c, the maximum of getting wherein is N.Such as, if C=3, then this set is { N 1, N 2, N 3, if N 3for maximum wherein, then maximum N is N 3.
UL grant in all embodiments of the present invention, is mainly used to the transmission indicating PUSCH, and be namely used for dispatching PUSCH, it sends to UE by physical downlink control channel PDCCH.UL grant can refer to the PDCCH carrying Downlink Control Information (DCI) form 0 or descending control information format 4.Downlink Control Information (DCI) form 0 or descending control information format 4 li mainly contain the information relevant to PUSCH transmission, these information are used to indicate the transmission of PUSCH, and the resource allocation information such as comprised is used to indicate the frequency domain resource that this PUSCH uses.
The sub-frame of uplink that UL grant is corresponding refers to that the PUSCH that this UL grant indicates transmits in this sub-frame of uplink, and this definition is applicable to all embodiments in the embodiment of the present invention.
Step 102: described UE determines according to described maximum N the response message that described sub-frame of uplink carries, by described response message physically row channel send to described base station.
As shown in Figure 2, embodiments provide another kind of information transferring method, comprising:
Step 201: base station sends UL grant to UE, and described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
Step 202: base station receives the response message that UE sends, and described response message is determined according to described maximum N by described UE.
As shown in Figure 3, the embodiment of the present invention additionally provides a kind of information transferring method, comprising:
Step 301: base station comprises set { N at UL grant i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
Step 302: described UL grant is sent to user equipment (UE) by base station in descending sub frame.
According to the scheme that the embodiment of the present invention provides, base station can comprise set { N at UL grant i, i=1,2 ..., the maximum N in C}, C are the number of downlink member carrier, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, carry the descending sub frame of PDSCH number and carry instruction SPS release PDCCH descending sub frame number and, and send UL grant to UE, UE after receiving this UL grant, the set { N that can comprise according to this UL grant i, i=1,2 ..., the maximum N in C}, determines the response message needing feedback, thus can realize response message row channel physically.
As shown in Figure 4, embodiments provide another kind of information transferring method, comprising:
Step 401:UE receives the UL grant that base station sends, and described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of downlink member carrier, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, carry the descending sub frame of PDSCH number and carry instruction SPS release PDCCH descending sub frame number and.
In embodiments of the present invention, when UE feeds back response message at subframe n on PUSCH, UE can receive one or more up instruction UL grant at subframe n-k '.The value of k ' can be as shown in table 3.Such as, when ratio of uplink subframe to downlink subframe 1, when subframe n=2 or 7, k ' gets 6, and when subframe n=3 or 8, k ' gets 4.When other ratio of uplink subframe to downlink subframe, the value of k ' can be determined according to table 3.It should be noted that, UE feeds back response message at subframe n on PUSCH, do not necessarily represent UE and can receive UL grant at subframe n-k ', such as, when the PUSCH sent at subframe n is the re-transmission of up SPS business or upstream data, any UL grant may be can not receive at subframe n-k '.
When configuring to the uplink member carrier number of UE more than 1, UE may have PUSCH to send at sub-frame of uplink n on two up-link carriers, and namely two PUSCH transmit simultaneously, and now response message only can wherein a PUSCH transmit.Such as, if when up main carrier having PUSCH transmission, the PUSCH channel that response message just only can carry at up main carrier, no matter this PUSCH is at the UL grant of subframe n-k ' with or without correspondence; If without PUSCH transmission on up main carrier, then response message will in the PUSCH channel of auxiliary carriers carry, the PUSCH channel that specifically which auxiliary carrier wave is corresponding can be selected according to the priority of up-link carrier, the auxiliary carrier wave that priority is the highest can be preferred, or, also can select according to the transformat of PUSCH.
When UE feeds back response message at sub-frame of uplink n on PUSCH, if the PUSCH of carrying response message has corresponding UL grant, then this UL grant sends to UE by base station at descending sub frame n-k ', namely UE receives this UL grant at descending sub frame n-k ', and only has a UL grant corresponding with the PUSCH of this carrying response message in the one or more up instruction UL grant that receives at descending sub frame n-k ' of UE.The UL grant corresponding with the PUSCH of carrying response message can refer to that base station is used for carrying out distributing the UL indicated grant to the PUSCH carrying response message, also be that UE is according to the PUSCH of the instruction transmission bearer response message of this UL grant, or UE adjusts according to the PUSCH of the instruction of this UL grant to carrying response message, or this UL grant is used to indicate the transmission of the PUSCH of carrying response message.Retransmit if the PUSCH of carrying response message is up semi-persistent scheduling service or non-self-adapting, then the PUSCH of this carrying response message is without the UL grant of correspondence, then ULgrant not corresponding with the PUSCH of carrying response message in the one or more up instruction UL grant that UE receives at descending sub frame n-k '.
Table 3
In embodiments of the present invention, (DownlinkAssignment Index, DAI) territory can be indicated by descending distributions in UL grant, the value in DAI territory namely by comprising in UL grant indicate set { N i, i=1,2 ..., the maximum N in C}, such as, if C=3, then this set is { N 1, N 2, N 3, if N 3for maximum wherein, maximum N is N 3, then the value in DAI territory for maximum N, namely if UE receives multiple UL grant in this step, then set { the N comprised in all UL grant i, i=1,2 ..., the maximum N in C} is identical, such as, in multiple UL grant that base station sends all identical.In the embodiment of the present invention, also can DAI territory be indicated to indicate maximum N by means of only descending distributions in the ULgrant corresponding to PUSCH of carrying response message, but in the embodiment of the present invention, descending distribution instruction DAI territory in preferred all UL grant all indicates maximum N, and descending distribution the namely in all UL grant indicates the value in DAI territory identical and all equal maximum N.
Such as, in LTE-A TDD system, base station is configured with 2 downlink member carriers to UE, is respectively CC1 and CC2, when ratio of uplink subframe to downlink subframe 2, sub-frame of uplink 2 need feed back the response message of descending sub frame corresponding in descending association sub-frame set K as shown in table 2.If CC1 with CC2 at the descending dispatch situation associated in sub-frame set K in all descending sub frames as shown in table 2 is: CC1 carry in 4 subframes the subframe of PDSCH number and carry indicating downlink SPS discharge PDCCH subframe number and N 1be 2, CC2 carry in 4 subframes the subframe of PDSCH number and carry indicating downlink SPS discharge PDCCH subframe number and N 2be 1, then gather { N i, the maximum of i=1,2} is 2, therefore, and the value of DAI in the UL grant that base station sends to UE or UE to receive at subframe n-k ' at subframe n-k ' equal, if there is multiple UL grant, then in all UL grant all equal 2.
In embodiments of the present invention, also by a special territory newly-increased in UL grant, set { N can be used to indicate i, i=1,2 ..., the maximum N in C}, or, also can carry out explicit or implicit expression instruction set { N by other territory in UL grant i, i=1,2 ..., the maximum N in C}.
In embodiments of the present invention, the base station scene of carrier aggregation that can configure to UE according to base station to the quantity that UE sends UL grant at subframe n-k ' and the uplink service demand of UE are determined.Such as, if only have 1 to the up-link carrier number of UE configuration, then base station is upper usually with regard to transmission 1 ULgrant at subframe n-k '; If be greater than 1 to the up-link carrier number of UE configuration, then base station can send multiple UL grant to UE at subframe n-k ' and dispatches multiple up-link carrier and send multiple PUSCH data simultaneously, the corresponding PUSCH of each UL grant, also only can dispatch up-link carrier transmission PUSCH data in multiple up-link carrier by transmission 1 UL grant.
In embodiments of the present invention, UL grant can be any PDCCHDCI form that can be used in indicating UL grant, such as, can be PDCCH DCI format 0, or also can be PDCCH DCI format 4 etc.
In embodiments of the present invention, the value in the DAI territory in UL grant is utilized instruction set { N ii=1,2,, during maximum in C}, can indicate as follows in the embodiment of the present invention: can utilize in the up-downgoing proportioning 1 to 6 such as shown in table 1, the value of the DAI of 2 bits in UL grant indicates, such as, as shown in table 4, when the value of the DAI in the UL grant detected when 2 corresponding bits are 00, if the ratio of uplink subframe to downlink subframe of UE is 2, then method as shown in table 4 is only the value in a kind of DAI territory utilized in UL grant that the embodiment of the present invention provides instruction set { N i, i=1,2 ..., the citing of the maximum in C}, in embodiments of the present invention, not to the DAI territory instruction { N how utilized in up instruction UL grant i, i=1,2 ..., the maximum of C} limits.
The value in table 4:DAI territory
It should be noted that, the method described by step 401 is not only applicable to, at PUSCH channel response message, go for response information transmission on the physical uplink channels such as PUCCH channel yet.
Step 402:UE is according to set { N i, i=1,2 ..., the maximum N in C}, determines the bit number of response message and the response message bit of feedback.
In embodiments of the present invention, with the value in the DAI territory by comprising in UL grant instruction set { N i, i=1,2 ..., the maximum N in C} is example, namely the response message bit of bit number and the feedback determining response message is described.
The bit number O of response message aCKcan determine in the following manner:
If need to carry out response message space binding (Spatial Bundling), then O aCKcan be the response message number of bits of feedback that the descending carrier i configured is corresponding c is the number of the downlink member carrier of configuration.
The binding of response message space is carried out, then the bit number O of response message if do not need aCKcan be wherein, O ifor the downlink member carrier i of configuration is at the bit number of response message corresponding to each subframe, O ivalue can be determined by the downlink transfer pattern of this descending carrier; The bit number O of response message aCKalso can be wherein, C is the number of the downlink member carrier of configuration, C 2for transmission mode in the downlink member carrier of configuration is the number of the downlink member carrier of space multiplexing mode, or C 2the number of the downlink member carrier of corresponding two code words of the Physical Downlink Shared Channel PDSCH carried in the downlink member carrier for configuration, or C 2for the number of the downlink member carrier of the corresponding 2 bit response messages of transmission mode in the downlink member carrier of configuration.And the response message number of bits of feedback that the downlink member carrier i of configuration is corresponding c is the number of the downlink member carrier of configuration.
Wherein, transmission mode can be the downlink transfer pattern of downlink member carrier, such as, transmission mode 1 is single antenna transmissions (Single-antenna port, port0) pattern, transmission mode 2 is transmit diversity (Transmitdiversity) pattern, and transmission mode 4 is Closed-Loop Spatial Multiplexing (Closed-loop spatial multiplexing) pattern.Under some transmission modes, PDSCH can carry two code words, such as transmission mode 4, and thus each descending carrier is at the corresponding 2bit response message of a subframe.Under some transmission modes, PDSCH carries 1 code word, such as transmission mode 1 and 2, and thus, each descending carrier is at the corresponding 1bit response message of a subframe.
Such as, if the transmission mode of downlink member carrier i is pattern 1 and 2, then O i=1, if the transmission mode of downlink member carrier i is pattern 4, then O i=2.In embodiments of the present invention, downlink transfer pattern can be multiple-input and multiple-output (Multiple Input Multiple Output, the MIMO) transmission mode that descending carrier is corresponding.
O ialso can determine by directly arranging, such as, set each descending carrier at the corresponding 1bit response message of a subframe, or corresponding 2bit response message etc.
O ialso can be determined by the situation of the PDSCH received on the downstream carriers according to UE.If the PDSCH such as received is corresponding 1 code word, then O i=1; If the PDSCH received is corresponding 2 code words, then O i=2.
In embodiments of the present invention, the response message bit of feedback n=0 ..., O aCK-1 can obtain in the following manner: determine the response message bit sequence that each descending carrier is corresponding, the response message bit sequence corresponding to each descending carrier sorts and obtains a new response message bit sequence, and this new response message bit sequence is the response message bit of feedback.
Wherein, the response message bit sequence that the descending carrier i of configuration is corresponding can be determined as follows o r ACK , C C i , r = 0 , . . . , O ACK , CC i - 1 :
If desired carry out the binding of response message space, then the descending carrier i configured at the response message that descending sub frame n-k as shown in table 2 is corresponding is and if the descending carrier i of configuration transmits descending SPS data at descending sub frame n-k as shown in table 2, then the response message that these SPS data are corresponding is for last 1 bit of response message bit sequence corresponding to the descending carrier i of this configuration, therefore, response message corresponding for SPS is come response message bit sequence corresponding to the descending carrier i of this configuration backmost by the program.The response message bit sequence corresponding to the descending carrier i of configuration in not by or those bits of response message bit stealing corresponding to SPS data, fill with NACK.Even according to set { N ii=1,2, the value of the DAI that the maximum N in C} and downstream grants (DL assignment) comprise, UE estimates that the descending carrier i of this configuration should detect the PDCCH of PDSCH or instruction SPS release at descending sub frame n-k as shown in table 2, but in reality not only UE does not detect PDSCH but also the PDCCH that instruction SPS discharges do not detected, then the descending carrier i of this configuration is NACK at the response message bit that this subframe is corresponding.
The binding of response message space is carried out if do not need, if then know that this descending carrier response message bit that row subframe is corresponding is in each of the lower 1 bit according to the transmission mode of the descending carrier i of this configuration, or O i=1, then determine that the descending carrier i of this configuration carries out determining that mode is identical when space bundlees with above-mentioned needs in the method for response message bit sequence corresponding to descending sub frame n-k as shown in table 2; If know that this descending carrier response message bit that row subframe is corresponding is in each of the lower 2 bits according to the transmission mode of the descending carrier i of this configuration, or O i=2, then the descending carrier i of this configuration at the response message that descending sub frame n-k as shown in table 2 is corresponding is with and if the descending carrier i of configuration transmits descending SPS data at descending sub frame n-k as shown in table 2, then the response message that these SPS data are corresponding is with wherein can corresponding NACK, for the ACK/NACK information bit that actual SPS data are corresponding, also passable for the ACK/NACK information bit that actual SPS data are corresponding, corresponding NACK.The response message bit sequence corresponding to the descending carrier i of configuration in not by with take, or also not by those bits of response message bit stealing corresponding to SPS data, fill with NACK.Even according to set { N ii=1,2, the value of the DAI comprised in the maximum N in C} and DLassignment, UE estimates that the descending carrier i of this configuration should detect the PDCCH of PDSCH or instruction SPS release at descending sub frame n-k as shown in table 2, but in reality not only UE does not detect PDSCH but also the PDCCH that instruction SPS discharges do not detected, then the descending carrier i of this configuration is 2 bit NACK at the response message bit that this subframe is corresponding.
DAI in above-mentioned steps ithe value of the DAI comprised in the DL assignment that k descending carrier i that () is this configuration receives at descending sub frame n-k as shown in table 2, this DL assignment can be PDCCH form 1/1/1A/1B/1D/2/2A/2B/2C.The accumulative number of the PDCCH that base station dispatches on the descending carrier of this configuration this UE the value of the DAI comprised in this DL assignment refers to the descending carrier i of this configuration to descending sub frame n-k as shown in table 2, the DAI value namely comprised in this downstream grants is an aggregate-value.
It should be noted that, can find out from step above, the bit number of the response message bit sequence that the descending carrier i of configuration is corresponding according to set { N i, i=1,2 ..., the maximum N in C} determines.Meanwhile, the bit in the response message bit sequence that the descending carrier i of this configuration is corresponding also needs according to set { N i, i=1,2 ..., the maximum N in C} determines.Thus the response message bit sequence that the descending carrier i of this configuration is corresponding need according to set { N i, i=1,2 ..., the maximum N in C} determines.
In this step, after determining response message bit sequence corresponding to each descending carrier, can sort according to the response message bit sequence that predetermined ordering rule is corresponding to each descending carrier, obtain a new response message bit sequence, this new response message bit sequence is the response message bit of feedback.Ordering rule predetermined in the embodiment of the present invention can be sort according to the response message that each descending carrier of order to configuration of the attribute increasing or decreasing of carrier wave is corresponding, the attribute of carrier wave can be the relative indexing number (Index) of carrier wave or the relative mark (ID) of carrier wave, or also can be the absolute indices number (carrierIndex) of carrier wave, can also be carry wave frequency size.Need illustrate and be, the predetermined ordering rule in the present invention is not restricted to this.
In the embodiment of the present invention, receive UL grant namely perform as long as this step can be UE at descending sub frame n-k ' as shown in table 3, no matter whether this UL grant is corresponding with the PUSCH of carrying response message.If in the descending sub frame n-k ' shown in table 3, base station does not send UL grant to UE, or UE does not detect UL grant in n-k ' subframe, then UE can determine the bit number of response message and the response message bit of feedback according to the number M of the descending sub frame comprised in the descending sub frame relation integration shown in table 2, can determine that the bit number of response message replaces with the value of the value M determining N in response message feedback bits process by above-mentioned, specifically determine that rule is consistent, no longer repeat herein.Illustrate that the value of M is as follows, such as, in the ratio of uplink subframe to downlink subframe 2 shown in table 2, the descending association sub-frame set K:{k of subframe 2 correspondence 0, k 1... k m-1be 8,7,4,6}, therefore, M=4.Equally, when other subframe or other ratio of uplink subframe to downlink subframe, can carry out according to table 2 bit number determining response message equally.
In the embodiment of the present invention, in this step, the PUSCH that also can work as carrying response message is corresponding with UL grant at descending sub frame n-k ', namely, when the transmission carrying the PUSCH of response message is indicated by the UL grant received in descending sub frame n-k ', UE determines the bit number of response message and the response message bit of feedback according to the maximum N that this UL grant comprises.If the PUSCH of carrying response message does not have corresponding UL grant at descending sub frame n-k ', UE can determine the bit number of response message and the response message bit of feedback according to the number M of the descending sub frame comprised in the descending sub frame relation integration shown according to table 2.Therefore, when the descending sub frame n-k ' of UE shown in table 3 receives the UL grant corresponding to PUSCH of carrying response message, when the UL grant of the correspondence that the transmission namely carrying the PUSCH of response message is received by the descending sub frame n-k ' shown in table 3 indicates, the set { N that UE comprises according to the UL grant of this correspondence i, i=1,2 ..., the maximum N in C} determines the bit number of response message and the response message bit of feedback; When the descending sub frame n-k ' of PUSCH shown in table 3 of carrying response message does not have corresponding ULgrant, namely when the descending sub frame n-k ' of UE shown in table 3 does not receive the UL grant corresponding with the PUSCH carrying response message, or the UL grant that receives of the PUSCH descending sub frame n-k ' that can't help shown in table 3 of carrying response message is when indicating, UE can determine the bit number of response message and the response message bit of feedback according to the number M of the descending sub frame comprised in the descending sub frame relation integration shown in table 2.Specifically determine that the bit number of response message is consistent with description above with the rule of the response message bit of feedback according to the number M of the descending sub frame comprised in maximum N or descending sub frame relation integration, no longer repeat herein.
The maximum N just comprised according to this UL grant when descending sub frame n-k ' has corresponding UL grant as the PUSCH carrying response message determines the bit number of response message and the response message bit of feedback, can avoid producing causing base station and the bit number of UE to the response message of actual transmissions to understand differently the problem caused because UL grant that the PUSCH of non-bearing response message is corresponding loses.Such as, UE feeds back response message at subframe n on PUSCH, in two up-link carriers of now UE, PUSCH on up main carrier is up SPS business, PUSCH on this up main carrier does not have corresponding ULgrant at descending sub frame n-k ', because up main carrier has PUSCH, response message sends on main carrier, namely on the PUSCH of main carrier carrying SPS business, sends response message.If base station to have sent UL grant at descending sub frame n-k ' and dispatches PUSCH on auxiliary carrier wave to UE, if do not limit UE only according to the bit number of value determination response message feedback and the feedback bits of response message in the DAI territory carried in UL grant corresponding to response message, then once the UL grant dispatching auxiliary carrier wave loses, then the bit number of response message feedback determined according to the number M of descending sub frame in descending association sub-frame set of UE and the feedback bits of response message, the PUSCH channel of main carrier sends response message.And base station thinks that UE is the bit number of response message feedback and the feedback bits of response message that in UL grant according to the auxiliary carrier wave of scheduling, the value in DAI territory is determined, thus cause base station and the bit number of UE to the response message of actual transmissions to understand differently causing, thus affect the correct reception of data and response message.If and limit UE only according to the bit number of value determination response message feedback and the feedback bits of response message in the DAI territory in UL grant corresponding to the PUSCH of carrying response message, then the problems referred to above can not be there are, if retransmit because the PUSCH of carrying response message is SPS or non-self-adapting, then base station and UE are all clear knows now without UL grant, the response message that PUSCH sends is the bit number of response message feedback and the feedback bits of response message determined according to the number M of descending sub frame in descending association sub-frame set, and the PUSCH of response message can not occur to carry be dynamic dispatching but the ULgrant of its correspondence situation of also losing, if because UL grant loses, UE would not know has such PUSCH to exist, thus also response information transmission on such PUSCH can not be selected.
It should be noted that, the sub-frame of uplink that the UL grant that UE receives at descending sub frame n-k ' as shown in table 3 is corresponding is n, namely refers to that UE is used to indicate the transmission of PUSCH in subframe n at the UL grant that descending sub frame n-k ' as shown in table 3 receives.A UL grant indicates the transmission of a PUSCH channel.A PUSCH channel can a corresponding data transmission block or corresponding two transmission blocks (or claiming code word).
It should be noted that, the method described by step 402 is not only applicable to the situation at PUSCH channel response message, is also applicable to the situation of response information transmission on the physical uplink channels such as PUCCH channel.
Step 403:UE is according to the response message bit determination response message of the bit number of described response message and feedback.
In embodiments of the present invention, the number of modulation symbol can be taken on PUSCH based on the bit number determination response message of the response message obtained in step 402.If the corresponding multilayer (Layer) of this PUSCH, then the number of the modulation symbol that can take on each layer of PUSCH according to the bit number determination response message of response message.Such as, can determine according to formula (1) the symbol numbers Q ' that response message takies on PUSCH.
Wherein, O aCKfor total response message number of bits of feedback; for the transmission bandwidth of PUSCH when same transmission block just passes; for the transmission bandwidth of present sub-frame PUSCH; for the number of single-carrier frequency division multiple access (Single-carrier Frequency DivisionMultiple Access, SC-FDMA) shared when same transmission block just passes; for response message is relative to the skew of data MCS; C (0)and C (1)be respectively the number of the code block that first code word and data corresponding to second code word are divided into when chnnel coding; with be respectively information bit and the CRC check bit number sum of first code word and second code word r code block; When UCI is HARQ-ACK, when UCI is RI, value and value by high-rise (RRC, Radio ResourceControl) signaling, and to select based on the MIMO transmission pattern of PUSCH.
It should be noted that, if a PUSCH only corresponding data transmission block (namely only having a code word), then the concrete calculating of Q ' also can be undertaken by following formula (1 '), and it is of equal value with formula 1 in the case.Wherein the implication of each symbol is the same with formula, repeats no more herein:
Or Q ' also can obtain by following formula (1 "), formula (1 ") be:
Q ′ = max [ min ( Q temp ′ , 4 · M sc PUSCH ) , Q min ′ ] , - - - ( 1 , , )
If O≤2, then Q ' min=O, otherwise Q ' min=| 2O/Q ' m|
Q m ′ = min ( Q m 1 , Q m 2 )
Wherein represent the 1st order of modulation that transmission block is corresponding, represent the 2nd order of modulation that transmission block is corresponding, it is the transmission bandwidth of first transmission block PUSCH when just passing; be the number of single-carrier frequency division multiple access (Single-carrier FrequencyDivision Multiple Access, the SC-FDMA) symbol shared when just passing of first transmission block, it is the transmission bandwidth of second transmission block PUSCH when just passing; be the number of single-carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, the SC-FDMA) symbol shared when just passing of second transmission block, the implication of all the other symbols is the same with formula, repeats no more herein.
The modulation symbol number Q ' that can take according to response message determines the bit number Q after response message chnnel coding, such as, can obtain the bit number Q after response message chnnel coding according to formula (2).
Q＝Q m·Q′ (2)
Wherein, Q is the bit number after UCI chnnel coding, Q mfor order of modulation.
In embodiments of the present invention, when the corresponding multilayer (layer) of this PUSCH, then can determine the bit number of response message after each layer of upper signal channel coding of PUSCH according to formula (1) and (2).
Can according to the method for the bit number determination chnnel coding of response message.Such as, if the bit number of response message is less than 11, then Randt's Miller (RM, Reed Muller) (32,11) code can be utilized to encode; If the bit number of response message is greater than 11, then two RM code can be utilized to encode.
Then, according to the bit number Q after the response message chnnel coding obtained and the channel coding method of selection, chnnel coding can be carried out to the response message bit of feedback, the response message bits of encoded of feedback is become Q bit.
The response message of acquisition is transferred to base station by step 404:UE.
The response message bit mapping obtained after encoded can be sent to base station by UE to PUSCH.
PUSCH in this step is the PUSCH of carrying response message.When step 402 descending sub frame n-k ' as shown in table 3 receive UL grant namely perform time, the UL grant that the base station that the PUSCH of this carrying response message not necessarily receives with UE in step 401 sends is corresponding, namely the UL grant that the base station that this PUSCH is not necessarily received by UE in step 401 sends indicates, such as, or the UL grant that the base station not necessarily received by UE in step 401 for the transmission of this PUSCH sends indicates, and this PUSCH may be up semi-persistent scheduling service SPS or non-self-adapting re-transmission.When step 402 only receives the UL grant corresponding to PUSCH of carrying response message as the descending sub frame n-k ' of UE shown in table 3, when UE just determines the response message bit of the bit number of response message and feedback according to maximum N, the PUSCH carrying response message in this step is indicated by the UL grant in step 401, and the UL grant that also namely UE receives in step 401 is used to indicate the transmission of the PUSCH carrying response message in this step.When limiting described PUSCH channel and being PUSCH channel corresponding to described UL grant, can avoid producing and cause base station and the bit number of UE to the response message of actual transmissions to understand differently the problem caused because UL grant that the PUSCH of non-bearing response message is corresponding loses, labor can refer step 402.
In embodiments of the present invention, UE can further include step 405 after response message is transferred to base station.
Step 405: base station receives the channel information that UE sends, detects the response message that UE sends.
In this step, base station is according to the set { N comprised in the up instruction UL grant sent to subscriber equipment i, i=1,2 ..., the maximum N in C} receives the response message that UE sends, and can comprise:
The modulation symbol number Q ' that the response message calculating UE transmission takies.
In this step, if the corresponding multilayer (layer) of PUSCH, then what this step calculated is the modulation symbol number that UCI takies on each layer of PUSCH.
In this step, base station can according to the set { N comprised in the ULgrant sent to UE at descending sub frame n-k ' as shown in table 3 i, i=1,2 ..., the maximum N in C} determines the number of bits of feedback that response message that UE sends is corresponding, and concrete defining method is consistent with determining the method for the number feeding back response message bit in step 402, repeats no more herein.
The modulation symbol number Q ' that the response message that the number of bits of feedback that the response message that base station sends based on the UE determined is corresponding calculates UE transmission takies.Computational methods are identical with step 403, repeat no more here.
Then, the response message that the UE with transfer of data sends can be isolated according to Q ' in base station.
The modulation symbol number that the response message that base station sends according to the UE that obtains takies, also can in conjunction with steps such as solution channel interleavings, isolates the response message that the UE with transfer of data sends.Specifically can refer to isolate the modulation symbol that response message that the UE with transfer of data sends is corresponding.
The number of the feedback bits that the response message that base station can send according to UE is corresponding, determine multiple candidate's control information bit sequence, and often kind of candidate's control information bit sequence is encoded, such as, can by all bit sequences identical for the number of the feedback bits corresponding with the response message that UE sends, alternatively control information bit sequence.For example, when the bit number of the response message that the UE with transfer of data sends is 12, candidate's control information bit sequence has 212 kinds.
The number of the feedback bits that the response message that base station sends according to the UE determined is corresponding selects the coding method of candidate's control information, and adopts the method identical with step 403 to encode to candidate's control information, and detail repeats no more herein.
Base station can be corresponding according to candidate's control information bit sequences of code bits, the response message that UE sends is detected, to judge that whether this candidate's control information bit sequence is the response message that UE sends.
Detection criteria in this step has multiple, for a kind of implementation in Maximum Likelihood Detection, each candidate's control information bit sequence is encoded by base station, by the conjugate multiplication of modulation symbol corresponding with isolated response message after the candidate's control information bit sequence modulation after coding, the real part again product addition got and be worth, the value obtained is called likelihood value; Or, by the conjugate multiplication of local frequency pilot sign with the frequency pilot sign received, product addition corresponding for multiple frequency pilot sign is obtained first and value, product addition corresponding for candidate's control information is obtained second and value, first and value and second are added the real part finally getting and be worth as likelihood value again with value; The information bit sequence that the response message that candidate's control information bit sequence corresponding for that maximum likelihood value sends as UE by base station is corresponding.
According to the information transferring method that the embodiment of the present invention provides, the UL grant sent by base station comprises set { N i, i=1,2 ..., the maximum determination response message of C}, under achieving LTE-A TDD system, response message transmits on the physical uplink channels such as PUSCH or PDSCH.Further, UE according to the number of sub frames feedback response message of actual schedule, can decrease and carry out punching in a large number on data the impact on transfer of data caused, can ensure response message transmission performance further under normal conditions.In addition, according to the method that the embodiment of the present invention provides, the problem that base station and the UE response message bit number to feedback is inconsistent can not be brought because UL grant loses, ensure that the correct reception of response message and data.
As shown in Figure 5, embodiments provide a kind of communication system, this communication system comprises terminal 600 and base station 700.Terminal 600 in embodiments of the present invention in communication system and base station 700 can realize the said method embodiment that the embodiment of the present invention provides.Described base station 700 is for comprising set { N at UL grant i, i=1,2 ..., the maximum N in C}, described C is the number of downlink member carrier, and C is more than or equal to 2, described N ifor downlink member carrier i carry in all descending sub frames of descending association sub-frame set the descending sub frame of PDSCH number and carry the PDCCH that indicating downlink SPS discharges descending sub frame number and, and described UL grant is sent to UE600 in descending sub frame.The UL grant that described UE600 sends for receiving described base station 700, and determine response message according to the maximum N in UL grant, described response message is sent to described base station 700.In system provided by the invention and all devices embodiment, the descending association sub-frame set that sub-frame of uplink is corresponding can refer to the set of all descending sub frame compositions that the response message of descending sub frame transmits in same sub-frame of uplink, namely the response message of all descending sub frames transmits in same sub-frame of uplink, and the set of these all descending sub frame compositions is descending association sub-frame set corresponding to this sub-frame of uplink.In the embodiment of the present invention, the descending association sub-frame set that under each ratio of uplink subframe to downlink subframe, each sub-frame of uplink is corresponding can be as shown in table 2, also can be alternate manner, the descending association sub-frame set that such as, under each ratio of uplink subframe to downlink subframe each sub-frame of uplink is corresponding, for deducting the set after special subframe (S) in each descending association sub-frame set shown in table 2, does not namely comprise the descending association sub-frame set of special subframe.
As shown in Figure 6, be a kind of terminal 600 that the embodiment of the present invention provides, this terminal 600 comprises: receiving element 610, and for receiving the up instruction UL grant that base station 700 sends, described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
This terminal 600 also comprises determining unit 620, and the maximum N for receiving according to described receiving element determines the response message that described sub-frame of uplink carries.
This terminal 600 also comprises transmitting element 630, sends to described base station for the response message described determining unit determined by physical uplink channel.
In embodiments of the present invention, transmitting element 630 feeds back response message at subframe n on PUSCH, and receiving element 610 can go up at subframe n-k ' value receiving one or more UL grant, k ' can be as shown in table 3.
In embodiments of the present invention, can by the value in DAI territory comprised in UL grant indicate set { N i, i=1,2 ..., the maximum N in C}.Or, also by a special territory newly-increased in UL grant, set { N can be used to indicate i, i=1,2 ..., the maximum N in C}, or, also can carry out explicit or implicit expression instruction set { N by other territory in UL grant i, i=1,2 ..., the maximum N in C}.
After determining unit 620 can receive UL grant at descending sub frame n-k ' as shown in table 3, or, when also can have corresponding UL grant at the PUSCH carrying response message, determine according to the maximum N that described receiving element receives the response message that described sub-frame of uplink carries.
Determining unit 620 can also be further used for determining according to described maximum N the response message bit sequence of first determining that each downlink member carrier is corresponding; The response message bit sequence corresponding to each descending carrier sorts, and obtains described response message.
Determining unit 620 can further include first and determines subelement 6201, for determining the bit number of described response message according to described maximum N, and the number of the modulation symbol taken at described physical uplink channel is determined according to the bit number of described response message, first determines that subelement 6201 can according to O aCK=N (C+C 2) determine the bit number of response message, described O aCKrepresent the bit number of response message, described C 2for the number of downlink member carrier when transmission mode is space multiplexing mode in described downlink member carrier, or described C 2for the number of the downlink member carrier of corresponding two code words of the PDSCH carried in described downlink member carrier, or described C 2for the number of the downlink member carrier of the corresponding 2 bit response messages of transmission mode in the downlink member carrier of described configuration; Or, according to O aCK=NC determines the bit number of response message.
In embodiments of the present invention, if with in UL grant instruction set { N i, i=1,2 ..., the maximum N of C} is example, and when not needing to carry out the binding of response message space, first determines that subelement 6201 can basis wherein, O ifor the downlink member carrier i of configuration is at the bit number of response message corresponding to each subframe, O ivalue can be determined by the downlink transfer pattern of this descending carrier; The bit number O of response message aCKalso can be wherein, C is the number of the downlink member carrier of configuration, C 2for transmission mode in the downlink member carrier of configuration is the number of the downlink member carrier of space multiplexing mode, or C 2the number of the downlink member carrier of corresponding two code words of the Physical Downlink Shared Channel PDSCH carried in the downlink member carrier for configuration, or C 2for the number of the downlink member carrier of the corresponding 2 bit response messages of transmission mode in the downlink member carrier of configuration.And the response message number of bits of feedback that the downlink member carrier i of configuration is corresponding when needs carry out the binding of response message space, passable the response message number of bits of feedback that the descending carrier i configured is corresponding O ACK , CC i = V DAI UL , i = 1,2 , . . . , C .
Determining unit 620 can further include second and determines subelement 6202, for determining the response message bit sequence first determining that each downlink member carrier is corresponding according to described maximum N; The response message bit sequence corresponding to each descending carrier sorts, and obtains the response message bit of described feedback.
Determining unit 620 can further include the 3rd and determines subelement 6203, for obtaining the modulation symbol number that described response message takies according to the bit number of described response message, carry out chnnel coding according to the response message bit of modulation symbol number to described feedback that described response message takies, described in acquisition, send to the response message of base station 700.
3rd determines that subelement 6203 can determine according to formula (1) or formula (1 ') or formula (1 ") the symbol numbers Q ' that response message takies on PUSCH.Determine the bit number Q after response message chnnel coding according to the modulation symbol number Q ' that response message takies, such as, the bit number Q after response message chnnel coding can be obtained according to formula (2).Then can carry out chnnel coding according to the response message bit of the bit number Q after the response message chnnel coding obtained to feedback, obtain the response message needing feedback.
As shown in Figure 7, be a kind of base station 700 that the invention process provides, base station 700 comprises: generation unit 710, and for generating UL grant, described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Transmitting element 720, for sending to user equipment (UE) 600 by described UL grant in descending sub frame.
Generation unit 710 can also be further used for the descending value of distributing instruction DAI territory in UL grant indicate described maximum N.Or, also by a special territory newly-increased in UL grant, set { N can be used to indicate i, i=1,2 ..., the maximum N in C}, or, also can carry out explicit or implicit expression instruction set { N by other territory in UL grant i, i=1,2 ..., the maximum N in C}.
Base station 700 can also comprise receiving element 730, and for receiving the response message that described UE 600 sends, described response message is determined according to described maximum N by described UE600.
Base station 700 can also comprise detecting unit 740, detects for the response message received receiving element 730.The maximum of number of the subframe that detecting unit 740 can utilize the subframe of carrying PDSCH in UL grant or carry the PDCCH that indicating downlink SPS discharges detects response message.The response message that the method in embodiment as shown in Figure 4 in step 405 can be adopted to carry out receiving and detect UE send.
The terminal provided according to the embodiment of the present invention, base station and communication system, the UL grant sent by base station comprises set { N i, i=1,2 ..., the maximum determination response message of C}, under achieving LTE-A TDD system, response message transmits on PUSCH.Further, UE according to the number of sub frames feedback response message of actual schedule, can decrease and carry out punching in a large number on data the impact on transfer of data caused, can ensure response message transmission performance further under normal conditions.In addition, according to the method that the embodiment of the present invention provides, the problem that base station and the UE response message bit number to feedback is inconsistent can not be brought because UL grant loses, ensure that the correct reception of response message and data.
As shown in Figure 8, the embodiment of the present invention additionally provides another kind of information transferring method, comprising:
Step 801:UE receive base station send UL grant, comprise in described UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
It should be noted that, the downlink member carrier in the embodiment of the present invention also can be called downlink member community (cell), and namely C can be the number of downlink member community.
In embodiments of the present invention, can by the value in DAI territory in UL grant indicate described maximum N ', also by a special territory newly-increased in UL grant, maximum N ' can be used to indicate, or, also can carry out explicit or implicit expression instruction N ' by other territory in UL grant.
Step 802: described UE determines response message according to described maximum N ', by described response message physically row channel send to described base station.
As shown in Figure 9, embodiments provide another kind of information transferring method, with the value by DAI territory in UL grant indicate described maximum N ' to be described for example, the method comprises:
Step 901:UE receives the UL grant that base station sends, the descending distribution instruction DAI territory instruction in described UL grant is gathered N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
When UE feeds back response message at sub-frame of uplink n on PUSCH, UE can receive one or more up instruction UL grant at descending sub frame n-k '.The value of k ' can be as shown in table 3.DAI territory instruction set in the UL grant that this step can be received at subframe n-k ' by UE N ' i, i=1,2 ..., the maximum N ' in M}.Descending sub frame i in descending association sub-frame set wherein in this step, i=1,2 ..., M may correspond to the descending sub frame n-k in descending association sub-frame set as shown in table 2 i-1, k ∈ K.Thus N ' ialso be the descending sub frame n-k in descending association sub-frame set as shown in table 2 i-1in carry the downstream arrangements carrier wave of PDSCH number and carry this UE of instruction descending SPS release PDCCH downstream arrangements carrier wave number and.Namely at descending sub frame n-k i-1carry base station give this UE send PDSCH data downstream arrangements carrier wave number with carry the PDCCH that base station discharge to this UE of instruction descending SPS that this UE sends downstream arrangements carrier wave number with.
Such as, in LTE-A TDD system, base station is configured with 2 downlink member carriers to UE, is respectively CC1 and CC2, when ratio of uplink subframe to downlink subframe 2, sub-frame of uplink 2 need feed back the response message of descending sub frame corresponding in descending association sub-frame set as shown in table 2.If CC1 with CC2 at the descending dispatch situation associated in all descending sub frames of sub-frame set as shown in table 2 is: only have CC1 to carry PDSCH at first descending sub frame, i.e. N ' 1be 1; All PDSCH is carried, i.e. N ' at second descending sub frame CC1 and CC2 2be 2; CC2 is only had to carry PDSCH at the 3rd descending sub frame, i.e. N ' 3be 1; CC1 is only had to carry PDSCH at the 4th descending sub frame, i.e. N ' 4be 1; Then gather N ' i, i=1,2 ..., M}={N ' i, i=1,2 ..., 4}={N ' 1, N ' 2, N ' 3, N ' 4maximum be 2, therefore, descending value of distributing instruction DAI territory in the UL grant that base station sends to UE or UE to receive at subframe n-k ' at subframe n-k ' equal 2, if there is multiple UL grant, then in all UL grant be all 2.
Step 902:UE according to set N ' i, i=1,2 ..., the maximum N ' in M}, determines the bit number of response message and the response message bit of feedback.
The bit number O of response message aCKcan determine in the following manner:
If the value of maximum N ' is greater than 1, then O aCK=4;
If the value of maximum N ' equals 1, then wherein O ifor the descending sub frame n-k in descending association sub-frame set as shown in table 2 i-1that downstream arrangements carrier wave of PDCCH carrying PDSCH or carry instruction SPS release is at the bit number of response message corresponding to this subframe, the MIMO transmission pattern that this value configures to this descending carrier by this base station is determined, such as, when transmission mode is 0, this value is 1, when transmission mode is 4, this value is 2; Or O aCK=M, performs the binding of response message space to each subframe.Even the value of maximum N ' equals 1, then the bit number of the response message fed back is determined by the number of descending sub frame in descending association sub-frame set.
The response message bit of feedback can be determined in the following manner:
If the value of maximum N ' is greater than 1, then: first determine the response message bit sequence that each descending carrier is corresponding, sort according to the response message bit sequence that predetermined ordering rule is corresponding to each descending carrier and obtain a new response message bit sequence, this new response message bit sequence is the response message bit of feedback.Predetermined ordering rule can be sort according to the response message that each descending carrier of order to configuration of the attribute increasing or decreasing of carrier wave is corresponding, the attribute of carrier wave can be the relative indexing number (Index) of carrier wave or the relative mark (ID) of carrier wave, or also can be the absolute indices number (carrier Index) of carrier wave, can also be carry wave frequency size.
If the value of maximum N ' equals 1, then: first determine the response message bit sequence that each descending sub frame is corresponding, sort according to the response message bit sequence that predetermined ordering rule is corresponding to each descending sub frame and obtain a new response message bit sequence, this new response message bit sequence is the response message bit of feedback.Predetermined ordering rule be according on the descending sub frame time in lower association sub-frame set as shown in table 2 from left to right order sequence.Response message 1 bit corresponding to that subframe of PDCCH of instruction SPS release is not carried or 2 bit NACK replace for not carrying PDSCH yet.
Step 903: according to the bit number of response message and the response message bit determination response message of feedback.
In embodiment shown in this step and Fig. 4, step 403 is similar, repeats no more herein.
The response message of acquisition is transferred to base station by step 904:UE.
In embodiment shown in this step and Fig. 4, step 404 is similar, repeats no more herein.
In the embodiment of the present invention, after response message is transferred to base station by UE, base station can receive the response message that UE sends, and detects, and the embodiment of the present invention can also comprise step 905.
Step 905: base station receives the response message that UE sends, and detect the response message of described reception.
In this step, base station according to descending in the up instruction UL grant sent to subscriber equipment distribute the instruction of instruction DAI territory set N ' i, i=1,2 ..., the maximum N ' in M} receives the response message that UE sends, and can comprise:
The modulation symbol number Q ' that the response message calculating UE transmission takies.
In this step, if the corresponding multilayer (layer) of PUSCH, then what this step calculated is the modulation symbol number that UCI takies on each layer of PUSCH.
In this step, base station first according to the set comprised in the ULgrant sent to UE at descending sub frame n-k ' as shown in table 3 N ' i, i=1,2 ..., the maximum N ' in M} determines the number of bits of feedback that response message that UE sends is corresponding, and concrete defining method is consistent with determining the method for the number feeding back response message bit in step 902, repeats no more herein.
The modulation symbol number Q ' that the response message that the number of bits of feedback that the response message that base station sends based on the UE determined is corresponding calculates UE transmission takies.Computational methods are identical with step 903, repeat no more here.
Further, the response message that the UE with transfer of data sends can be isolated according to Q ' in base station.
The modulation symbol number that the response message that base station can send according to the UE that obtains take, also can in conjunction with steps such as solution channel interleavings, isolates the response message that the UE with transfer of data sends.Such as can isolate the modulation symbol that response message that the UE with transfer of data sends is corresponding.
Then, the number of the feedback bits that the response message that base station can send according to the UE determined is corresponding, determines multiple candidate's control information bit sequence, and encodes to often kind of candidate's control information bit sequence; Can refer step 405, repeat no more herein.
Base station can be corresponding according to candidate's control information bit sequences of code bits, the response message that UE sends is detected, to judge that whether this candidate's control information bit sequence is the response message that UE sends.This step can refer step 405, repeats no more herein.
It should be noted that, the method that the embodiment of the present invention provides is not only applicable to, at PUSCH channel response message, go for response information transmission on the physical uplink channels such as PUCCH channel yet.
As shown in Figure 10, the embodiment of the present invention additionally provides a kind of communication system, and this communication system comprises terminal 1100 and base station 1200.Terminal 1100 in embodiments of the present invention in communication system and base station 1200 can realize the embodiment of the method shown in Fig. 8 and 9 that the embodiment of the present invention provides.Described base station 1200 for comprise in described UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in descending association sub-frame set, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of PDSCH number and carry instruction SPS release PDCCH downstream arrangements carrier wave number and, and this UL grant is sent to terminal 1100.Described 1100 for receiving the UL grant that described base station 1200 sends, and determine response message according to the maximum N ' in UL grant, and described response message is sent to described base station 1200.
As shown in figure 11, be the another kind of terminal 1100 that the embodiment of the present invention provides, this terminal 1100 comprises: receiving element 1110, for receive base station 1200 send UL grant, comprise in UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding.
This terminal 1100 also comprises determining unit 1120, determines response message for the maximum N ' received according to described receiving element 1110.
This terminal 1100 also comprises transmitting element 1130, and the response message for described determining unit 1120 being determined sends to described base station 1200.
Determining unit 1120 can also be further used for described maximum N ' and determine the bit number of response message and the response message bit of feedback; Response message according to the bit number of described response message and the response message bit determination of feedback.
As shown in figure 12, be the another kind of base station 1200 that the embodiment of the present invention provides, comprise: generation unit 1210, for generating UL grant, comprise in this UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in descending association sub-frame set, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of PDSCH number and carry instruction SPS release PDCCH downstream arrangements carrier wave number and.
Generation unit 1110 can also be further used for the descending value of distributing instruction DAI territory in UL grant indicate described maximum N '.
Base station 1200 also comprises transmitting element 1220, for described UL grant is sent to user equipment (UE) 1100.
Base station 1200 can also comprise receiving element 1230, and for receiving the response message that described UE 1100 sends, described response message is determined according to described maximum N ' by described UE 1100.
Base station 1200 can also comprise detecting unit 1240, detects for the response message received receiving element 1230.
According to the scheme that the embodiment of the present invention provides, the transmission to response message in the situation such as single carrier or carrier aggregation on the physical uplink channels such as PUSCH or PDSCH effectively can be realized.Further, can decrease and data are carried out punching in a large number the impact on transfer of data caused, response message transmission performance can be ensured further.In addition, according to the method that the embodiment of the present invention provides, the problem that base station and the UE response message bit number to feedback is inconsistent can not be brought because UL grant loses, ensure that the correct reception of response message and data.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware implementing.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each execution mode of the present invention.
Although by referring to some of the preferred embodiment of the invention, to invention has been diagram and describing, those of ordinary skill in the art should be understood that and can do various change to it in the form and details, and does not depart from scope of the present invention.

Claims (22)

1. an information transferring method, is applied to senior Long Term Evolution lte-a system, it is characterized in that, comprising:
User equipment (UE) receives the up instruction UL grant that base station sends, and described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number carrying the descending sub frame of the Physical Downlink Shared Channel PDSCH of described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Described UE determines the response message that described sub-frame of uplink carries described response message to be sent to described base station by physical uplink channel according to described maximum N.
2. method according to claim 1, is characterized in that, described response message is sent to described base station by physical uplink channel by described UE, comprising:
Described UE determines the bit number of described response message according to described maximum N;
Determine the number of the modulation symbol taken at described physical uplink channel according to the bit number of described response message, and send described response message on the physical uplink channel that described modulation symbol number is corresponding.
3. method according to claim 2, is characterized in that, described UE, according to the bit number of described maximum determination response message, comprising:
Described UE is according to O aCK=N (C+C 2) determine the bit number of response message, described O aCKrepresent the bit number of response message, described C 2for transmission mode in the downlink member carrier of configuration is the number of the downlink member carrier of space multiplexing mode, or described C 2the number of the downlink member carrier of corresponding two code words of the PDSCH carried in the downlink member carrier for configuration, or described C 2for the number of the downlink member carrier of the corresponding 2 bit response messages of transmission mode in the downlink member carrier of configuration; Or,
Described UE is according to O aCK=NC determines the bit number of response message.
4. method according to claim 1, is characterized in that, according to described maximum N, described UE determines that the response message that described sub-frame of uplink carries comprises:
The response message bit sequence that each downlink member carrier is corresponding is determined according to described maximum N;
The response message bit sequence corresponding to each descending carrier sorts, and obtains described response message.
5. method according to claim 1, is characterized in that, if the quantity of UL grant that described base station sends is greater than 1, described in be greater than 1 the maximum N that comprises of all UL grant identical.
6. according to the arbitrary described method of claim 1-5, it is characterized in that, the descending value of distributing instruction DAI territory in described UL grant indicates described maximum N.
7., according to the arbitrary described method of claim 1-5, it is characterized in that, described physical uplink channel is Physical Uplink Shared Channel PUSCH, and described PUSCH is corresponding with described UL grant.
8. an information transferring method, is applied to senior Long Term Evolution lte-a system, it is characterized in that, comprising:
Base station comprises set { N at up instruction UL grant i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that user equipment (UE) is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Described UL grant is sent to user equipment (UE) by base station in descending sub frame.
9. method according to claim 8, is characterized in that, the descending distribution instruction DAI territory in described UL grant indicates described maximum N.
10. method according to claim 8 or claim 9, it is characterized in that, described method comprises further:
Base station receives the response message that described UE sends, and described response message is determined according to described maximum N by described UE.
11. methods according to claim 10, it is characterized in that, described response message determines according to described maximum N the response message bit sequence that each downlink member carrier is corresponding by described UE, and the response message bit sequence corresponding to each descending carrier carries out sequence and obtain.
12. 1 kinds of user equipment (UE)s, are applied to senior Long Term Evolution lte-a system, it is characterized in that, comprising:
Receiving element, for receiving the up instruction UL grant that base station sends, described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that described UE is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Determining unit, the maximum N for receiving according to described receiving element determines the response message that described sub-frame of uplink carries;
Transmitting element, sends to described base station for the response message described determining unit determined by physical uplink channel.
13. UE according to claim 12, is characterized in that, described determining unit is used for determining according to described maximum N the response message bit sequence that each downlink member carrier is corresponding; The response message bit sequence corresponding to each descending carrier sorts, and obtains described response message.
14. UE according to claim 12, it is characterized in that, described determining unit also comprises first and determines subelement, for determining the bit number of described response message according to described maximum N, and determine the number of the modulation symbol taken at described physical uplink channel according to the bit number of described response message;
Described transmitting element is also for determining the physical uplink channel that described modulation symbol number that subelement is determined is corresponding sends described response message according to described first.
15. UE according to claim 14, is characterized in that, described first determines that subelement is for according to O aCK=N (C+C 2) determine the bit number of response message, described O aCKrepresent the bit number of response message, described C 2for transmission mode in the downlink member carrier of configuration is the number of the downlink member carrier of space multiplexing mode, or described C 2the number of the downlink member carrier of corresponding two code words of the PDSCH carried in the downlink member carrier for configuration, or described C 2for the number of the downlink member carrier of the corresponding 2 bit response messages of transmission mode in the downlink member carrier of configuration; Or, according to O aCK=NC determines the bit number of response message.
16. 1 kinds of base stations, are applied to senior Long Term Evolution lte-a system, it is characterized in that, comprising:
Generation unit, for generating up instruction UL grant, described UL grant comprises set { N i, i=1,2 ..., the maximum N in C}, described C is the number of the downlink member carrier that user equipment (UE) is corresponding, and C is more than or equal to 2, described N ifor downlink member carrier i is in all descending sub frames of descending association sub-frame set, the number of the descending sub frame of the number of carrying the descending sub frame of Physical Downlink Shared Channel PDSCH carrying described UE and the physical downlink control channel PDCCH carrying described UE and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Transmitting element, for sending to user equipment (UE) by described UL grant in descending sub frame.
17. base stations according to claim 16, is characterized in that, described generation unit is further used for indicating described maximum N with the descending distribution instruction DAI territory in UL grant.
18. base stations according to claim 16 or 17, it is characterized in that, described base station also comprises receiving element, and for receiving the response message that described UE sends, described response message is determined according to described maximum N by described UE.
19. 1 kinds of communication systems, comprise as arbitrary in claim 12 to 15 as described in user equipment (UE) and claim 16 to 18 arbitrary as described in base station.
20. 1 kinds of information transferring methods, are applied to senior Long Term Evolution lte-a system, it is characterized in that, comprising:
User equipment (UE) receive base station send up instruction UL grant, comprise in described UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Described UE determines response message according to described maximum N ', by described response message physically row channel send to described base station.
21. methods according to claim 20, is characterized in that, the descending distribution instruction DAI territory in described UL grant in UL grant indicates described maximum N '.
22. 1 kinds of user equipment (UE)s, are applied to senior Long Term Evolution lte-a system, it is characterized in that, comprising:
Receiving element, for receive base station send up instruction UL grant, comprise in described UL grant set N ' i, i=1,2 ..., the maximum N ' in M}, M are the number of descending sub frame in the descending association sub-frame set that described UE is corresponding, N ' ifor carry in the descending sub frame i in descending association sub-frame set the downstream arrangements carrier wave of the Physical Downlink Shared Channel PDSCH of described UE number and carry described UE physical downlink control channel PDCCH downstream arrangements carrier wave number and, described PDCCH is used to indicate the descending semi-persistent scheduling service SPS of the described UE of release, and the described descending association sub-frame set sub-frame of uplink corresponding with described UL grant is corresponding;
Determining unit, for determining response message according to the maximum N ' received;
Transmitting element, for response message that described determining unit is determined physically row channel send to described base station.
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CN101588224A (en) * 2009-05-19 2009-11-25 中兴通讯股份有限公司 Method and system for transmitting correct/wrong reply message

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