CN102468944B - Methods and devices for feeding back and receiving response information in carrier aggregation - Google Patents
Methods and devices for feeding back and receiving response information in carrier aggregation Download PDFInfo
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- CN102468944B CN102468944B CN201010534576.8A CN201010534576A CN102468944B CN 102468944 B CN102468944 B CN 102468944B CN 201010534576 A CN201010534576 A CN 201010534576A CN 102468944 B CN102468944 B CN 102468944B
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Abstract
The invention discloses methods and devices for feeding back and receiving response information in carrier aggregation. The method for feeding back the response information in carrier aggregation comprises the following steps of: performing time domain binding on response information of each member carrier to generate binding information corresponding to each member carrier; mapping the binding information of each member carrier to generate transmission information corresponding to each member carrier, wherein the transmission information has a response information evaluation form; acquiring response channels for main member carriers and auxiliary member carriers in member carriers; and transmitting a symbol to be transmitted corresponding to the transmission information of the member carrier on a corresponding response channel according to the transmission information, the response channels and a corresponding relation between symbols to be transmitted. In the scheme, through the complete process of performing time domain binding on the response information, mapping the binding information and the transmission information, re-mapping the transmission information into the symbols to be transmitted and transmitting the symbols to be transmitted on corresponding response channels, the high-efficiency feedback of the response information is realized.
Description
Technical field
The present invention relates to communication technical field, particularly in a kind of carrier aggregation, feed back response message and receive the method and apparatus of response message.
Background technology
In mixed automatic retransfer request (Hybrid Automatic Repeat Request, HARQ) technology, data receiver need to feed back response message to data receiver, to help confirming whether data correctly receive.The value of response message can be ACK (Acknowledgement, confirm reply), NACK (Negative-acknowledgement, deny replying) and DTX (Discontinuous Transmission, discontinuous transmission), wherein ACK represents that data receiver is correct, NACK represents data receiver mistake, and DTX represents not receive data.
In third generation partner program (3
rdgeneration Partnership Project, 3GPP) evolution whole world terrestrial wireless access (Evolved Universal Terrestrial Radio Access, E-UTRA) up link of system (Uplink) direction, the response message that subscriber equipment receives to base station feedback downlink data by Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH).3GPP E-UTRA system is also referred to as Long Term Evolution (Long Term Evolution, LTE) system.
At further evolution and enhancing system LTE-A (the Long Term Evolution-Advanced of LTE system, senior Long Term Evolution) in, carrier aggregation (Carrier Aggregation) technology is selected to support wider bandwidth, with meet International Telecommunication Union for the 4th generation the communication technology peak data rate requirement.In carrier aggregation technology, the frequency spectrum of two or more member carriers (Component Carrier) is grouped together in together to obtain wider transmission bandwidth, wherein each member carrier can be configured to the compatible carrier wave of LTE system, and the frequency spectrum of each member carrier can be adjacent continuous frequency spectrum, also can be the discontinuous spectrum in non-conterminous frequency spectrum or even the different frequency bands in identical frequency band; LTE subscriber equipment can only access one of them member carrier and carry out data transmit-receive, carries out data transmit-receive and LTE-A subscriber equipment can access multiple member carriers according to its ability and business demand simultaneously.Carrier aggregation technology is also spectrum aggregating (Spectrum Aggregation) technology sometimes, or bandwidth expansion (Bandwidth Extension) technology.In carrier aggregation technology, each member carrier has independently HARQ process, and can configure different uplink and downlink member carrier numbers for LTE-A subscriber equipment.
At LTE time division duplex (Time Division Duplex, TDD) in system, because its up-downgoing is asymmetric in time domain, the proportioning of descending sub frame is more than sub-frame of uplink (subframe is the time period for convey data packets), according to its ratio of uplink subframe to downlink subframe, multiple descending sub frames can be associated with identical sub-frame of uplink and feed back response message.In LTE-A TDD system, in the time that LTE-A subscriber equipment accesses multiple member carrier simultaneously, need to feed back the response message from multiple descending sub frames of multiple member carriers at identical member carrier.Can cause like this feeding back response message amount larger, prior art not yet has effective solution to this.
Summary of the invention
The embodiment of the present invention provides the method and apparatus that feeds back response message and reception response message in a kind of carrier aggregation, in the time adopting identical member carrier feedback from the response message of multiple descending sub frames of multiple member carriers, adopt the mode of time-domain binding to compress feedback information, the bit number of transmission information is reduced, solved the defect of prior art.
On the one hand, the embodiment of the present invention provides a kind of feed back response message in carrier aggregation method, and described method comprises: the response message in each member carrier is carried out to time-domain binding, generate the binding information of corresponding described each member carrier; Binding information to each member carrier shines upon, and generates the transmission information of corresponding described each member carrier, and described transmission information has described response message value form; For the main member carrier in described member carrier and auxiliary member carrier obtain respectively responder link; According to the corresponding relation between the described transmission information and described responder link and the symbol to be sent that arrange, the symbol described to be sent of the transmission information of the described member carrier of correspondence is sent on corresponding responder link.
On the other hand, the embodiment of the present invention also provides a kind of method that receives response message in carrier aggregation, and described method comprises: for main member carrier and the auxiliary member carrier of subscriber equipment distribute responder link; On distributed responder link, receive the symbol that subscriber equipment sends, according to the corresponding relation between the described responder link and symbol and the transmission information of reception that arrange, obtain the transmission information corresponding with the symbol receiving on described responder link, described transmission information has described response message value form; Described transmission information mapping is obtained to binding information; Wherein, described binding information is that the response message in described member carrier is carried out to the binding information that time-domain binding generates; Obtain the response message in described main member carrier and auxiliary member carrier according to described binding information.
Another aspect, the embodiment of the present invention also provides the device that feeds back response message in a kind of carrier aggregation, described device comprises: information binding unit, for the response message of each member carrier is carried out to time-domain binding, generates the binding information of corresponding described each member carrier; Information map unit, shines upon for the binding information to each member carrier, generates the transmission information of corresponding described each member carrier, and described transmission information has described response message value form; Channel acquiring unit, is used to main member carrier and auxiliary member carrier in described member carrier to obtain respectively responder link; Information transmitting unit for according to the corresponding relation between the described transmission information and described responder link and the symbol to be sent that arrange, sends the symbol described to be sent of the transmission information of the described member carrier of correspondence on corresponding responder link.
Also have on the one hand, the embodiment of the present invention also provides the device that receives response message in a kind of carrier aggregation, and described device comprises: channel-assignment unit, is used to the main member carrier of subscriber equipment and auxiliary member carrier to distribute responder link; Information receiving unit, the symbol sending for receive subscriber equipment on distributed responder link, according to the corresponding relation between the described responder link and symbol and the transmission information of reception that arrange, obtain the transmission information corresponding with the symbol receiving on described responder link, described transmission information has described response message value form; Information demapping unit, for obtaining binding information by described transmission information mapping; Wherein, described binding information is that the response message in described member carrier is carried out to the binding information that time-domain binding generates; Information acquisition unit, for obtaining the response message of described main member carrier and auxiliary member carrier according to described binding information.
The technical scheme of the embodiment of the present invention, to LTE-A TDD carrier aggregation system, mapping, the transmission information of time-domain binding, binding information and transmission information by response message are mapped as symbol to be sent again, and this symbol to be sent is sent to this complete process at corresponding responder link, realize the efficient feedback of response message.
Brief description of the drawings
Fig. 1 is embodiment of the present invention response message time-domain binding mode principle schematic;
Fig. 2 is the method flow diagram that feeds back response message in embodiment of the present invention carrier aggregation;
Fig. 3 is the schematic diagram of device that feeds back response message in embodiment of the present invention carrier aggregation;
Fig. 3 a is the refinement functional block diagram of channel acquiring unit 303 in Fig. 3;
Fig. 4 is the method flow diagram that receives response message in embodiment of the present invention carrier aggregation;
Fig. 5 is the schematic diagram of device that receives response message in embodiment of the present invention carrier aggregation;
Fig. 5 a is the refinement functional block diagram of channel-assignment unit 501 in Fig. 5.
Embodiment
The embodiment of the present invention has proposed to feed back in a kind of carrier aggregation the method and apparatus of response message and reception response message, time-domain binding mode (as shown in Figure 1 b) in the second response message feedback system that this technical scheme is supported taking LTE-A TDD system is basis, and specific implementation responder link obtain, and on the responder link obtaining, feed back the process of binding information by channel selective mode.
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
First the embodiment of the present invention proposes to feed back in a kind of carrier aggregation the method for response message, after time-domain binding response message, adopts channel to select to feed back response message.Fig. 2 is the overall flow figure of the present embodiment method.As shown in Figure 2, the method comprises:
S201, the response message in each member carrier is carried out to time-domain binding, generate the binding information of corresponding described each member carrier;
S202, the binding information of each member carrier is shone upon, generate the transmission information of corresponding described each member carrier;
S203, obtain respectively responder link for main member carrier and auxiliary member carrier in member carrier;
S204, according to the corresponding relation between transmission information and described responder link and the symbol to be sent of described member carrier arranging, the symbol described to be sent of the transmission information of the described member carrier of correspondence is sent on corresponding responder link.
Alternatively, in S203, for obtaining responder link, the main member carrier in member carrier comprises: as Physical Downlink Shared Channel (the Physical Downlink Control Channel of described main member carrier carrying, PDSCH) by Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) while instruction, using control channel unit (Control Channel Element, the CCE) label that described PDCCH takies is that main member carrier obtains the first responder link; In the time that the PDSCH of described main member carrier carrying does not indicate by PDCCH, the mode of use explicit signaling is described the first responder link for main member carrier obtains.
Alternatively, in S203, for obtaining responder link, the main member carrier in member carrier also comprises:, by Radio Resource control (Radio Resource Control, RRC) signaling, be also that main member carrier obtains the second responder link.
Alternatively, in S203, for obtaining responder link, the auxiliary member carrier in member carrier comprises: when the PDSCH of described auxiliary member carrier carrying indicates by PDCCH and described PDCCH during in main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier obtains described the first responder link.
Alternatively, in S203, not only need is that auxiliary member carrier obtains the first responder link, also need to obtain the second responder link, now, for the auxiliary member carrier in member carrier obtains responder link, also comprise: obtain the second responder link by explicit signaling, described explicit signaling comprises ARI (ACK/NACK Resource Indicator the replys resource instruction) command word in RRC signaling and PDCCH.Alternatively, the ARI obtaining on same auxiliary member carrier is identical.
Alternatively, in S203, do not need is that auxiliary member carrier obtains the first responder link, only need to obtain the second responder link, now, for obtaining responder link, the auxiliary member carrier in member carrier comprises: obtain the second responder link by explicit signaling, described explicit signaling comprises the ARI command word in RRC signaling and PDCCH.Alternatively, the ARI obtaining on same auxiliary member carrier is identical.
Alternatively, in S201, described binding information comprises for representing response message the situation that confirmation is replied ACK or denied replying NACK, confirms the number of replying ACK as represented; The transmission information that the binding information that ACK number is 1 is mapped to is for { ACK is replied in confirmation, denies replying NACK} or { ACK is replied in confirmation, discontinuous transmission DTX}.
On PUCCH channel, LTE-A TDD system is supported two kinds of response message feedback systems.First kind of way is to transmit with the channel of PUCCH form 3, and which supports maximum to transmit 20 bit response messages simultaneously.The second way is that the mode of selecting with the channel of PUCCH form 1b, in conjunction with channel is carried out response information transmission, and which supports maximum to transmit 4 bit response messages simultaneously.The second response message feedback system is also referred to as channel selective mode conventionally.In channel selective mode, because maximum can only be supported 4 bit response messages, in order to reduce the response message bit number that needs feedback, can be to multiple response messages of the multiple descending sub frames from identical member carrier, compress by certain response message binding (Bundling) feedback system, and feed back the information after compression, this mode is also referred to as response message time-domain binding mode conventionally.For convenience of description, the PUCCH channel for feeding back response message is called to responder link.
Taking the schematic diagram shown in Fig. 1 as example, describe the method for the present embodiment in detail below.In Fig. 1, longitudinal two member carriers of two line displays, for example, for example, comprising a main member carrier (the first row) and an auxiliary member carrier (the second row).4 each member carriers of box indicating in every a line have 4 descending sub frames to be associated with identical sub-frame of uplink to feed back response message.Dotted ellipse in every a line represents that the response message of the multiple descending sub frames to each member carrier carries out time-domain binding.The binding information of each member carrier is mapped to the transmission information of 2 bits, and each transmission information bit all distributes a response message to carry out the feedback of response message.It should be noted that, although the present embodiment describes as an example of Fig. 1 example, only make an explanation for the technical scheme to the present embodiment, and not for claim protection range is limited.
Describe the concrete steps of the present embodiment below in detail:
Step 1: the response message in each member carrier is carried out to time-domain binding, generate the binding information of corresponding described each member carrier.
Subscriber equipment receives the PDSCH that base station sends, and generates corresponding response message according to PDSCH reception condition.Wherein PDSCH is the packet that is carried on member carrier descending sub frame, and the response message of the present embodiment is the reception of the PDSCH response message whether success is fed back.The present embodiment will generate corresponding response message for multiple descending sub frames of each member carrier.
Generate after response message, need to carry out time-domain binding (Time Domain Bundling) to the response message of multiple descending sub frames of each member carrier, generate binding information, wherein, optionally, can generate binding information according to the mapping ruler of the response message arranging and binding information.Described binding information is for representing the situation that response message comprises ACK or NACK.The mapping ruler of optional response message and binding information is: in the time not detecting that PDCCH loses, if there is no NACK in multiple response message, binding information is used to indicate the number of ACK, if there is at least one NACK, indicating ACK number is 0; In the time detecting that at least one PDCCH loses, indicate DTX, or instruction ACK number is 0.The mapping ruler of another kind of optional response message and binding information is: indicate from first response message, detect that PDCCH loses the number of previous continuous ACK; If first response message is NACK, indicating ACK number is 0; If detect that first PDCCH loses, indicate DTX, or instruction ACK number is 0.In addition, those skilled in the art can also just release the mapping ruler that can also have other between response message and binding information without performing creative labour according to description of the invention, repeat no more herein.
Step 2: the binding information to each member carrier shines upon, the transmission information of the corresponding described each member carrier of generation.
In the present embodiment, after carrying out time-domain binding, the binding information obtaining optionally represents the number of ACK, according to the binding information arranging and the mapping ruler (mapping ruler as described in rear continued 1, table 2) of transmission information, the binding information of each member carrier is mapped to transmission information, wherein, optional, can generate transmission information according to the mapping ruler of the binding information arranging and transmission information, this transmission information possesses the form of expression of response message value.Especially, the binding information of each member carrier is mapped to 2 bit transfer information by the present embodiment, and transmission information there is the form of expression of response message value can be for ACK, NACK or DTX.
In LTE-A TDD carrier aggregation, according to ratio of uplink subframe to downlink subframe, a member carrier can have 1,2,3,4 or 9 descending sub frame to be associated with identical sub-frame of uplink to feed back response message.Thereby the ACK number that can represent at most in the binding information of each member carrier is 9., in the mapping of transmission information, in the time of binding information instruction DTX, also can be used as ACK number and be 0 and process at binding information.Owing to being not the PDSCH information that each descending sub frame necessarily carries this subscriber equipment, in the time that member carrier has 9 descending sub frames, the response message of its feedback also may be less than 9.
Table 1 has provided the Mapping Examples of a kind of optional binding information to transmission information.Wherein, the transmission information that ACK number 0 is shone upon can use separately a state value, as NACK, and NACK; The transmission information of ACK number 1,4 and 7 mappings uses identical state value, as ACK, and NACK; The transmission information of ACK number 2,5 and 8 mappings uses identical state value, as NACK, and ACK; The transmission information of ACK number 3,6 and 9 mappings uses identical state value, as ACK, and ACK.In the time that binding information is DTX, can process according to ACK number 0, i.e. mapping obtains transmission information { NACK, NACK}; Or directly mapping obtains transmission information { DTX, DTX}.Optionally, in the transmission information of table 1, NACK also can replace with DTX.
| Binding information (representing the number of ACK) | Transmission information value |
| 0 | NACK，NACK |
| 1 | ACK，NACK |
| 2 | NACK，ACK |
| 3 | ACK，ACK |
| 4 | ACK，NACK |
| 5 | NACK，ACK |
| 6 | ACK，ACK |
| 7 | ACK，NACK |
| 8 | NACK，ACK |
| 9 | ACK，ACK |
Table 1 binding information is to the Mapping Examples one of transmission information
Table 2 has provided the Mapping Examples of another optional binding information to transmission information.Wherein, the transmission information of ACK number 1,5 and 9 mappings uses identical state value, as ACK, and NACK; The transmission information of ACK number 2 and 6 mappings uses identical state value, as NACK, and ACK; The transmission information of ACK number 3 and 7 mappings uses identical state value, as NACK, and NACK; The transmission information of ACK number 4 and 8 mappings uses identical state value, as ACK, and ACK.In the time that binding information is DTX or instruction ACK number 0, the transmission information value of mapping is { DTX, DTX}.In the transmission information of table 2, except 2 bit transfer information are all the situations of NACK, the NACK in all the other situations also can replace with DTX; Be all the situation of NACK for 2 bit transfer information, one of them NACK can replace with DTX.
| Binding information (representing the number of ACK) | Transmission information value |
| 1 | ACK，NACK |
| 2 | NACK，ACK |
| 3 | NACK，NACK |
| 4 | ACK，ACK |
| 5 | ACK，NACK |
| 6 | NACK，ACK |
| 7 | NACK，NACK |
| 8 | ACK，ACK |
| 9 | ACK，NACK |
Table 2 binding information is to the Mapping Examples two of transmission information
In the present embodiment, for the binding information of a carrier wave, if the ACK number of its expression is 1, preferred, be mapped to transmission information { ACK, NACK or DTX}.In table one repeat mode be spaced apart 3, in table two, repeat mode is spaced apart 4.The existence of repeat mode can cause system to be difficult to distinguish these repeat modes.Increase repeat mode interval and be conducive to alleviate the probability that repeat mode occurs, and and then reduction system distinguish the complexity of these repeat modes.
Taking table 1 as example, to 9 of certain member carrier descending sub frames, suppose that base station 6 subframes have therein carried the PDSCH of a certain subscriber equipment.Correct if these PDSCH all receive, i.e. after time-domain binding, obtaining the ACK number that binding information represents is 6, and mapping obtains transmission information { ACK, ACK} so.Base station know oneself for this subscriber equipment at 6 subframe schedulings PDSCH, receiving transmission information, { ACK, after ACK}, judges that the ACK number that binding information represents is 6.
Except above-mentioned table 1, outside the mapping ruler that table 2 is enumerated, those skilled in the art can also release the mapping ruler that can also have other between response message and binding information without performing creative labour according to description of the invention, repeat no more herein.
Step 3: for the main member carrier in member carrier and auxiliary member carrier obtain respectively responder link.
In LTE-A TDD carrier aggregation, in the time that subscriber equipment accesses multiple member carrier simultaneously, system can arrange a member carrier and (also claim main plot as the main member carrier of this subscriber equipment, be Primary Cell, be called for short Pcell), all the other member carriers are called as the auxiliary member carrier (Ye Chengfu community, i.e. Secondary Cell are called for short Scell) of this subscriber equipment.
This step specifically comprises the response message that obtains main member carrier and the responder link that obtains auxiliary member carrier.Particularly, in the time obtaining the responder link of main member carrier, when in the time that main member carrier receives at least one PDSCH, use the responder link method of salary distribution under non-carrier aggregation mode, obtain at least one responder link:
(1) obtain the responder link of main member carrier
For the each PDSCH carrying on main member carrier, there are two kinds of situations, one is to indicate PDSCH (for example indicating the schedule information of PDSCH) by PDCCH, also referred to as dynamic dispatching; Another kind is not indicate by PDCCH, also referred to as semi-continuous scheduling (Semi-Persistent Scheduling, SPS).
Corresponding responder link can obtain in the following ways: in the time that PDSCH indicates by PDCCH, use CCE (Control Channel Element, control channel unit) label that described PDCCH takies to calculate and obtain the first responder link; In the time that PDSCH does not indicate by PDCCH, obtain described the first responder link by the mode of explicit signaling.LTE-A TDD system is further evolution and the enhancing of LTE TDD system, and can backward compatibility LTE
TDD system, allows LTE TDD subscriber equipment access LTE-A TDD system.For backward compatibility LTE TDD subscriber equipment better, the responder link method of salary distribution of LTE TDD system has also obtained maximum succession in LTE-A TDD system.At document " 3GPP TS 36.213 v9.2.0,3rd Generation Partnership Project; Technical SpecificationGroup Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physicallayer procedures (Release 9) " in; provide the CCE label taking by PDCCH and calculated the method for obtaining described the first responder link; and not having PDCCH when instruction to obtain the method for described the first responder link by explicit signaling, repeat no more herein.
Especially, when only receive a PDSCH on main member carrier time, if the CCE that PDCCH takies only has one, can only obtain first responder link.As previously mentioned, the transmission information of each member carrier is 2 bits, in channel is selected, still need to distribute two responder links.A kind of optional method is outside the first responder link, and base station is that main member carrier distributes the second responder link by explicit signaling.Particularly, described explicit signaling is RRC (Radio ResourceControl, Radio Resource control) signaling.Like this as long as subscriber equipment is received at least one PDSCH on main member carrier, just can obtain at least one first responder link, add the second responder link distributing by explicit signaling, so just can ensure always to have two responder links to have selected for channel.As previously mentioned, the responder link method of salary distribution of LTE TDD system has obtained succession in LTE-A TDD system.Described the first responder link is also to obtain by the responder link method of salary distribution of LTE TDD system.In LTE-A TDD system, introduce carrier aggregation technology.The second responder link is to introduce after carrier aggregation technology, for the unique property of carrier aggregation, and required additional allocation responder link.Correspondingly, the method for salary distribution of the second responder link, also different with LTE-TDD systems response Channel distribution mode.For example, the PDSCH dispatching for SPS mode in LTE TDD system, also obtains responder link by explicit signaling mode, but explicit signaling has specifically comprised RRC signaling and SPS activation command.Another kind of optional method is to be only retrieved as the first responder link that main member carrier distributes, subscriber equipment can suppose that a virtual responder link carries out channel selection in addition, can see by the discussion in subsequent step four, by selecting form to do certain suitable design to binding information to mapping and the channel of transmission information, can make, in the time that main member carrier has received only a PDSCH and only obtained first responder link, to make subscriber equipment can not select virtual responder link.Consider responder link resource overhead, preferentially adopt the second way, main member carrier is only retrieved as the first responder link of the PDSCH distribution of its carrying.
(2) obtain the responder link of auxiliary member carrier:
In LTE-A TDD system, for the each PDSCH carrying on auxiliary member carrier, all to indicate PDSCH (for example indicating the schedule information of PDSCH) by PDCCH.If the PDSCH of auxiliary member carrier carrying also can not indicate by PDCCH, auxiliary member carrier also can carry the PDSCH of SPS type, also can obtain the first responder link by the mode of explicit signaling, does not repeat them here.
In the time obtaining the responder link of auxiliary member carrier, can also be carried on main member carrier or two kinds of situations of auxiliary member carrier are treated with a certain discrimination according to PDCCH.
The scene sending on main member carrier for the PDCCH of instruction PDSCH, embodiment provides following two kinds of optional responder link obtain manners:
A kind of optional mode, similar with main member carrier responder link obtain manner, the CCE label that can at least take according to this PDCCH calculates and obtains the first responder link, also can only be retrieved as the first responder link of auxiliary allocation of carriers; Or outside the first responder link, be retrieved as this auxiliary member carrier by explicit signaling and distribute the second responder link.
Particularly, be that auxiliary member carrier obtains the first responder link and comprises: when the PDSCH of described auxiliary member carrier carrying indicates by PDCCH and described PDCCH during in main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier obtains described the first responder link.
Particularly, outside the first responder link, be retrieved as this auxiliary member carrier by explicit signaling and distribute the second responder link.The described mode by explicit signaling is retrieved as described auxiliary member carrier and distributes the second responder link to be: obtain the second responder link by RRC signaling in conjunction with the mode of the ARI command word in PDCCH.For example, base station configures multiple the second responder links (for example 4) by RRC signaling for this auxiliary member carrier, further be designated as PDSCH by the ARI command word in PDCCH (ARI command word can be 2 bits) and distributed which responder link in multiple the second responder links, wherein said PDCCH is used to indicate the PDSCH of this auxiliary member carrier carrying.Consider that an auxiliary member carrier only needs second responder link, preferably, on same auxiliary member carrier, can indicate identical ARI.
Another kind of optional mode is that the mode by explicit signaling is that auxiliary member carrier only obtains the second responder link completely., no longer obtain the first responder link.Particularly, the described mode by explicit signaling is obtained two responder links and is, obtains the second responder link by RRC signaling in conjunction with the mode of the ARI command word in PDCCH.For example for configuring 4 groups, every group, this auxiliary member carrier comprises 2 responder links by RRC signaling, further be designated as which the group responder link of PDSCH in having distributed 4 groups by 2 bit A RI command words in PDCCH, wherein said PDCCH is used to indicate the PDSCH of this auxiliary member carrier carrying.When subscriber equipment is in the time that multiple descending sub frames of this auxiliary member carrier receive PDSCH, consider that each member carrier only needs two responder links to carry out channel selection, in order to reduce expense, can in multiple PDCCH of multiple PDSCH of this auxiliary member carrier carrying of instruction, indicate the second identical responder link., preferably, on same auxiliary member carrier, indicate identical ARI.
ARI command word does not exist in the PDCCH of the PDSCH of the main member carrier of instruction carrying, so when by explicit signaling being main member carrier while distributing the second responder link, described explicit signaling only comprises RRC signaling, and further indicating in conjunction with ARI.
The scene sending on auxiliary member carrier for the PDCCH of instruction PDSCH:
Be that auxiliary member carrier only obtains the second responder link by the mode of explicit signaling completely.Outside the second responder link, no longer obtain the first responder link.Particularly, the described mode by explicit signaling is obtained two responder links and is, obtains the second responder link by RRC signaling in conjunction with the mode of the ARI command word in PDCCH.For example for configuring 4 groups, every group, this auxiliary member carrier comprises 2 responder links by RRC signaling, further be designated as which the group responder link of PDSCH in having distributed 4 groups by 2 bit A RI command words in PDCCH, wherein said PDCCH is used to indicate the PDSCH of this auxiliary member carrier carrying.When subscriber equipment is in the time that multiple descending sub frames of this auxiliary member carrier receive PDSCH, consider that each member carrier only needs two responder links to carry out channel selection, in order to reduce expense, can in multiple PDCCH of multiple PDSCH of this auxiliary member carrier carrying of instruction, indicate the second identical responder link., preferably, on same auxiliary member carrier, indicate identical ARI.
The aforementioned description about responder link is all that the situation based on not adopting PUCCH transmit diversity is described.In the time adopting PUCCH transmit diversity techniques, need to divide and manufacture simple extension above-mentioned resource according to the needed channel resource number of transmit diversity techniques.In LTE-A system, PUCCH can adopt SORTD (Spatial Orthogonal-ResourceTransmit Diversity, orthogonal space resource transmit diversity) to carry out transmit diversity.Now only the channel resource number distributing above need to be doubled.For example, first CCE taking by PDCCH and thereafter followed by the label of CCE calculate and obtain two the first responder links; For the PDSCH carrying on auxiliary member carrier, if indicate the PDCCH of its schedule information to send on auxiliary member carrier, can pass through 4 groups, every group 4 responder links of RRC signal deployment, further indicating the second responder link of distribution by ARI is 4 responder links of which group in 4 groups.
For each member carrier, can obtain in the manner described above the first responder link and/or the second responder link.In the time only having obtained the first responder link, if receive only the PDSCH of this member carrier carrying, the first responder link that use is this PDSCH distribution so and pseudo channel are as the responder link of distributing to this member carrier; If receive the PDSCH that is greater than this member carrier carrying, use so the first responder link distributing for two PDSCH wherein as the responder link of distributing to this member carrier, preferably, use the first responder link distributing into the first two PDSCH.In the time having obtained the first responder link and the second responder link simultaneously, the first responder link that uses the second responder link and distribute for one of them PDSCH is as the responder link of distributing to this member carrier, preferably, use the first responder link distributing into first PDSCH.In the time only having obtained the second responder link, use the second responder link as the responder link of distributing to this member carrier.In the time not adopting PUCCH transmit diversity, for the responder link of each member carrier choice for use is two.Like this, to each member carrier, step 2 has been obtained dibit transmission information, and step 3 has been obtained two responder links, just can carry out channel according to step 4 and select.
Alternatively, the step 3 of the present embodiment also can be carried out before step 1, two.
Step 4: according to the corresponding relation between transmission information and described responder link and the symbol to be sent of the described member carrier arranging, the symbol described to be sent of the transmission information of the described member carrier of correspondence is sent on corresponding responder link.
In channel is selected, the corresponding relation between the transmission information of the described member carrier of setting and described responder link and symbol to be sent, can select form to represent (as shown in table 3) with channel.According to step 2 and step 3 above, in the time not adopting PUCCH transmit diversity, each member carrier obtains 2 bit transfer information and 2 responder links.For the situation of 2 member carriers, obtain altogether after 4 bit transfer information and 4 responder links, can adopt channel as shown in table 3 to select form, according to 4 values of bit transfer information and the responder link of distribution, subscriber equipment obtains feedback the response message channel using and the information symbol that will send.As can be seen from Table 3, according to the value state of information to be transmitted, from 4 responder links that obtain, select a responder link to transmit a symbol, the value of this symbol can be+1 ,-1 ,+j or-j.
The channel of table 3 is selected in form, and the 2 bit transfer information that main member carrier is corresponding are HARQ-ACK (0), HARQ-ACK (1); The 2 bit transfer information that auxiliary member carrier is corresponding are HARQ-ACK (2), HARQ-ACK (3).Label be 1 and label be 2 responder link is in step 3, to be two responder links that main member carrier obtains, wherein, in the time using the first responder link and pseudo channel, the responder link that label is 2 is pseudo channel; Label be 3 and label be 4 responder link is in step 3, to be two responder links that auxiliary member carrier obtains.
The channel of table 34 bit transfer information and 4 responder links is selected form
In step 3, consider responder link resource overhead, preferably, main member carrier is only retrieved as to the first responder link of the PDSCH distribution of its carrying.When having received only a PDSCH at main member carrier, and while only getting a responder link, taking table 1 as example, if this PDSCH receives mistake, main member carrier mapping having been obtained to transmission information { NACK/DTX, NACK/DTX}; If this PDSCH receives correct, main member carrier mapping is obtained to transmission information { ACK, NACK/DTX}.Table 3 is got the bid the transmission information of underscore while just representing that main member carrier has received only a PDSCH, corresponding transmission information.
Can find out from the get the bid corresponding channel of these transmission informations of underscore of table 3, no matter the transmission information value of auxiliary member carrier how, main member carrier selects all the time less than pseudo channel (responder link that label is 2), so second responder link is even without truly being obtained, being also can't go wrong of virtual hypothesis.Therefore, for main member carrier, although only obtained a responder link, in channel is selected, can be, that a virtual responder link of main member carrier hypothesis is as second responder link.
According to the definition of table 3, counter while pushing away binding information in step 1 to the mapping mode of transmission information, just can draw, for the binding information of a carrier wave, if the ACK number of its expression is 1, preferred, be mapped to transmission information { ACK, NACK or DTX}; So just can make to carry out channel while selecting at main member carrier, can not choose label and be 2 responder link, and only need obtain the first responder link of main member carrier.The channel of table 3 is selected form
Corresponding to the method for feeding back response message in embodiment of the present invention carrier aggregation, the embodiment of the present invention has also proposed to feed back in a kind of carrier aggregation the device of response message, typically, this device can be subscriber equipment (User, Equipment, UE), Fig. 3 is the functional block diagram of this device, and as shown in Figure 3, this device comprises: information binding unit 301, for the response message of each member carrier is carried out to time-domain binding, generate the binding information of corresponding described each member carrier; Information map unit 302, shines upon for the binding information to each member carrier, generates the transmission information of corresponding described each member carrier, and described transmission information has described response message value form; Channel acquiring unit 303, is used to main member carrier and auxiliary member carrier in described member carrier to obtain respectively responder link; Information transmitting unit 304 for according to the corresponding relation between the described transmission information and described responder link and the symbol to be sent that arrange, sends the symbol described to be sent of the transmission information of the described member carrier of correspondence on corresponding responder link.
Fig. 3 a is the refinement functional block diagram of the channel acquiring unit 303 in Fig. 3, and as shown in Figure 3 a, this channel acquiring unit 303 further comprises: main carrier channel acquiring unit 3031 and auxiliary carrier channel acquiring unit 3032.
Alternatively, main carrier channel acquiring unit 3031, while instruction by physical downlink control channel PDCCH for the PDSCH carrying when described main member carrier, use control channel unit CCE label that described PDCCH takies to obtain the first responder link for main member carrier; In the time that the PDSCH of described main member carrier carrying does not indicate by PDCCH, the mode of use explicit signaling is described the first responder link for main member carrier obtains.
Alternatively, main carrier channel acquiring unit 3031,, for by radio resource control RRC signaling, is also that main member carrier obtains the second responder link.
Alternatively, auxiliary carrier channel acquiring unit 3032, for indicate by PDCCH as the PDSCH of described auxiliary member carrier carrying and described PDCCH in the time that main member carrier carries, the CCE label taking with described PDCCH is that auxiliary member carrier obtains described the first responder link.Alternatively, auxiliary carrier channel acquiring unit 3032, not only needs to obtain the first responder link, also will obtain the second responder link by explicit signaling, and the resource of replying that described explicit signaling comprises in RRC signaling PDCCH is indicated ARI command word.
Alternatively, auxiliary carrier channel acquiring unit 3032, only, in the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, obtain the second responder link by explicit signaling, described explicit signaling comprises the ARI command word in RRC signaling and described PDCCH.
The method and apparatus of the present embodiment, to LTE-A TDD carrier aggregation system, in the time adopting channel to select to feed back the mode of response message after time-domain binding, a kind of efficient responder link obtain manner has been proposed, binding information is being mapped to after transmission information, can feeding back efficiently binding information according to channel selective mode by the responder link obtaining.Especially, if receive only a PDSCH in multiple descending sub frames of main member carrier, and while only obtaining the first responder link, arrive the suitable mapping of transmission information by binding information, obtain after a pseudo channel in hypothesis, also can support efficiently to feed back by channel selective mode 2 bit binding informations of this member carrier, and be conducive to reduce systems response channel total resources expense.
Corresponding to the method for feeding back response message in carrier aggregation embodiment illustrated in fig. 2, the embodiment of the present invention also provides a kind of method that receives response message in carrier aggregation, the overall flow figure that Fig. 4 is the method, and as shown in Figure 4, the method comprises:
S401, be that the main member carrier of subscriber equipment and auxiliary member carrier distribute responder link;
S402, on distributed responder link, receive subscriber equipment send symbol, according to the corresponding relation between the described responder link and symbol and the transmission information of reception that arrange, obtain the transmission information corresponding with the symbol receiving on described responder link, described transmission information has described response message value form;
S403, described transmission information demapping is obtained to binding information; Wherein, described binding information is that the response message in described member carrier is carried out to the binding information that time-domain binding generates;
S404, obtain the response message in described main member carrier and auxiliary member carrier according to described binding information.
Alternatively, in S401, for distributing responder link, the main member carrier of subscriber equipment comprises: in the time that the PDSCH sending on main member carrier indicates by physical downlink control channel PDCCH, the control channel unit CCE label taking with described PDCCH is that main member carrier distributes the first responder link; In the time that the described PDSCH sending on main member carrier does not indicate by PDCCH, be that main member carrier distributes described the first responder link by the mode of explicit signaling.
Alternatively, in S401, for distributing responder link, the main member carrier of subscriber equipment also comprises: by radio resource control RRC signaling, be that main member carrier distributes the second responder link.
Alternatively, in S401, for distributing responder link, the auxiliary member carrier of subscriber equipment comprises: when the PDSCH of described auxiliary member carrier carrying indicates by PDCCH and described PDCCH during in main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier distributes described the first responder link; In the time that described PDSCH does not indicate by PDCCH, be that auxiliary member carrier distributes described the first responder link by the mode of explicit signaling.
Alternatively, in S401, not only need is that auxiliary member carrier distributes the first responder link, also need is that auxiliary member carrier distributes the second responder link, now, for distributing responder link, the auxiliary member carrier of subscriber equipment also comprises: distribute the second responder link by explicit signaling, described explicit signaling comprises the ARI command word in RRC signaling and PDCCH.Alternatively, the ARI sending on same auxiliary member carrier is identical.Wherein, described PDCCH can be the PDCCH that PDSCH is corresponding.
Alternatively, in S401, do not need is that auxiliary member carrier distributes the first responder link, only need is that auxiliary member carrier distributes the second responder link, now, comprise for the auxiliary member carrier for equipment distributes responder link: in the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, distribute the second responder link by explicit signaling, described explicit signaling comprise RRC signaling and with described PDCCH in ARI command word.Alternatively, the ARI sending on same auxiliary member carrier is identical.Wherein, described PDCCH can be the PDCCH that PDSCH is corresponding.
Owing to for example the method that receives response message in carrier aggregation having been carried out to detailed explanation in embodiment 1, the method of the present embodiment is the process completely corresponding with the method for embodiment 1,, the process of obtaining responder link embodying in embodiment 1, corresponding to the process of distributing responder link in the present embodiment.Therefore, the present embodiment is no longer to distributing the method for response message to launch for example to describe in carrier aggregation.
Corresponding to the device that feeds back response message in carrier aggregation in embodiment 1, the present embodiment provides the device that receives response message in a kind of carrier aggregation, typically, this device can be base station equipment, Fig. 5 is the functional block diagram of this device, as shown in Figure 5, this device comprises: channel-assignment unit 501, is used to the main member carrier of subscriber equipment and auxiliary member carrier to distribute responder link; Information receiving unit 502, the symbol sending for receive subscriber equipment on distributed responder link, according to the corresponding relation between the described responder link and symbol and the transmission information of reception that arrange, obtain the transmission information corresponding with the symbol receiving on described responder link, described transmission information has described response message value form; Information demapping unit 503, for obtaining binding information by described transmission information demapping; Wherein, described binding information is that the response message in described member carrier is carried out to the binding information that time-domain binding generates; Information acquisition unit 504, for obtaining the response message of described main member carrier and auxiliary member carrier according to described binding information.
Fig. 5 a is the refinement functional block diagram of the channel-assignment unit 501 shown in Fig. 5, and as shown in Figure 5 a, this channel-assignment unit 501 also comprises: main carrier channel-assignment unit 5011 and auxiliary carrier channel allocation units 5012.
Alternatively, main carrier channel-assignment unit 5011, for in the time that the PDSCH sending on main member carrier indicates by physical downlink control channel PDCCH, the control channel unit CCE label taking with described PDCCH is that main member carrier distributes the first responder link; In the time that the described PDSCH sending on main member carrier does not indicate by PDCCH, be that main member carrier distributes described the first responder link by the mode of explicit signaling.
Alternatively, main carrier channel-assignment unit 5011,, for by radio resource control RRC signaling, is also that main member carrier distributes the second responder link.
Alternatively, auxiliary carrier channel allocation units 5012, for indicate by PDCCH as the PDSCH of described auxiliary member carrier carrying and described PDCCH in the time that main member carrier carries, the CCE label taking with described PDCCH is that auxiliary member carrier distributes described the first responder link.Alternatively, it is auxiliary allocation of carriers the first responder link that auxiliary carrier channel allocation units 5012 not only need, also, for by explicit signaling being auxiliary allocation of carriers the second responder link, the resource of replying that described explicit signaling comprises in RRC signaling PDCCH is indicated ARI command word.
Alternatively, auxiliary carrier channel allocation units 3012, only in the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, distribute the second responder link by explicit signaling, described explicit signaling comprises the ARI command word in RRC signaling and described PDCCH.
The method and apparatus of the present embodiment, to LTE-A TDD carrier aggregation system, in the time adopting channel to select to feed back the mode of response message after time-domain binding, a kind of efficient responder link method of salary distribution has been proposed, binding information is being mapped to after transmission information, can feeding back efficiently binding information according to channel selective mode by the responder link distributing.Especially, if receive only a PDSCH in multiple descending sub frames of main member carrier, and only distribute a responder link, arrive the suitable mapping of transmission information by binding information, also can support to feed back by channel selective mode 2 bit binding informations of this member carrier.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random AccessMemory, RAM) etc.
Above embodiment only, in order to the technical scheme of the embodiment of the present invention to be described, is not intended to limit; Although the embodiment of the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the embodiment of the present invention.
Claims (27)
1. a method of feeding back response message in carrier aggregation, is characterized in that, described method comprises:
Response message in each member carrier is carried out to time-domain binding, generate the binding information of corresponding described each member carrier;
Binding information to each member carrier shines upon, and generates the transmission information of corresponding described each member carrier, and described transmission information has described response message value form;
For the main member carrier in described member carrier and auxiliary member carrier obtain respectively responder link;
According to the corresponding relation between the described transmission information and described responder link and the symbol to be sent that arrange, the symbol described to be sent of the transmission information of the described member carrier of correspondence is sent on corresponding responder link.
2. method according to claim 1, is characterized in that, comprises for the main member carrier in described member carrier obtains responder link:
In the time that the PDSCH of described main member carrier carrying indicates by physical downlink control channel PDCCH, use control channel unit CCE label that described PDCCH takies to obtain the first responder link for main member carrier; In the time that the PDSCH of described main member carrier carrying does not indicate by PDCCH, the mode of use explicit signaling is described the first responder link for main member carrier obtains.
3. method according to claim 2, is characterized in that, also comprises for the main member carrier in described member carrier obtains responder link:
By radio resource control RRC signaling, be that main member carrier obtains the second responder link.
4. method according to claim 1, is characterized in that, comprises for the auxiliary member carrier in member carrier obtains responder link:
When the PDSCH of described auxiliary member carrier carrying indicates by PDCCH and described PDCCH during in main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier obtains the first responder link.
5. method according to claim 4, is characterized in that, also comprises for the auxiliary member carrier in described member carrier obtains responder link:
Obtain the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling and described PDCCH is indicated ARI command word.
6. method according to claim 1, is characterized in that, comprises for the auxiliary member carrier in described member carrier obtains responder link:
In the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, obtain the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling and described PDCCH is indicated ARI command word.
7. according to the method described in claim 5 or 6, it is characterized in that, the ARI obtaining on same auxiliary member carrier is identical.
8. method according to claim 1, is characterized in that, described binding information comprises for representing response message the situation that confirmation is replied ACK or denied replying NACK; The transmission information that the binding information that ACK number is 1 is mapped to is: confirm to reply ACK, deny replying NACK; Or be: confirm to reply ACK, discontinuous transmission DTX.
9. a method that receives response message in carrier aggregation, is characterized in that, described method comprises:
For main member carrier and the auxiliary member carrier of subscriber equipment distribute responder link;
On distributed responder link, receive the symbol that subscriber equipment sends, according to the corresponding relation between the described responder link and symbol and the transmission information of reception that arrange, obtain the transmission information corresponding with the symbol receiving on described responder link, described transmission information has described response message value form;
Described transmission information demapping is obtained to binding information; Wherein, described binding information is that the response message in described member carrier is carried out to the binding information that time-domain binding generates;
Obtain the response message in described main member carrier and auxiliary member carrier according to described binding information.
10. method according to claim 9, is characterized in that, comprises for the main member carrier of subscriber equipment distributes responder link:
In the time that the PDSCH sending on main member carrier indicates by physical downlink control channel PDCCH, the control channel unit CCE label taking with described PDCCH is that main member carrier distributes the first responder link; In the time that the described PDSCH sending on main member carrier does not indicate by PDCCH, be that main member carrier distributes described the first responder link by the mode of explicit signaling.
11. methods according to claim 10, is characterized in that, also comprise for the main member carrier of subscriber equipment distributes responder link:
By radio resource control RRC signaling, be that main member carrier distributes the second responder link.
12. methods according to claim 9, is characterized in that, comprise for the auxiliary member carrier of subscriber equipment distributes responder link:
When the PDSCH of described auxiliary member carrier carrying indicates by PDCCH and described PDCCH during in main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier distributes the first responder link.
13. methods according to claim 12, is characterized in that, also comprise for the auxiliary member carrier of subscriber equipment distributes responder link:
Distribute the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling PDCCH is indicated ARI command word.
14. methods according to claim 9, is characterized in that, comprise for the auxiliary member carrier of subscriber equipment distributes responder link:
In the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, distribute the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling and described PDCCH is indicated ARI command word.
15. according to the method described in claim 13 or 14, it is characterized in that, the ARI sending on same auxiliary member carrier is identical.
The device that feeds back response message in 16. 1 kinds of carrier aggregation, is characterized in that, described device comprises:
Information binding unit, for the response message of each member carrier is carried out to time-domain binding, generates the binding information of corresponding described each member carrier;
Information map unit, shines upon for the binding information to each member carrier, generates the transmission information of corresponding described each member carrier, and described transmission information has described response message value form;
Channel acquiring unit, is used to main member carrier and auxiliary member carrier in described member carrier to obtain respectively responder link;
Information transmitting unit for according to the corresponding relation between the described transmission information and described responder link and the symbol to be sent that arrange, sends the symbol described to be sent of the transmission information of the described member carrier of correspondence on corresponding responder link.
17. devices according to claim 16, is characterized in that, described channel acquiring unit comprises:
Main carrier channel acquiring unit, in the time that the PDSCH of described main member carrier carrying indicates by physical downlink control channel PDCCH, uses control channel unit CCE label that described PDCCH takies to obtain the first responder link for main member carrier; In the time that the PDSCH of described main member carrier carrying does not indicate by PDCCH, the mode of use explicit signaling is described the first responder link for main member carrier obtains.
18. devices according to claim 17, is characterized in that,
Described main carrier channel acquiring unit, for by radio resource control RRC signaling, is also that main member carrier obtains the second responder link.
19. devices according to claim 16, is characterized in that, described channel acquiring unit also comprises:
Auxiliary carrier channel acquiring unit, for indicate by PDCCH as the PDSCH of described auxiliary member carrier carrying and described PDCCH when the main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier obtains the first responder link.
20. devices according to claim 19, is characterized in that,
Described auxiliary carrier channel acquiring unit, also for obtain the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling PDCCH is indicated ARI command word.
21. devices according to claim 16, is characterized in that, described channel acquiring unit also comprises:
Auxiliary carrier channel acquiring unit, for in the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, obtain the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling and described PDCCH is indicated ARI command word.
The device that receives response message in 22. 1 kinds of carrier aggregation, is characterized in that, described device comprises:
Channel-assignment unit, is used to the main member carrier of subscriber equipment and auxiliary member carrier to distribute responder link;
Information receiving unit, the symbol sending for receive subscriber equipment on distributed responder link, according to the corresponding relation between the described responder link and symbol and the transmission information of reception that arrange, obtain the transmission information corresponding with the symbol receiving on described responder link, described transmission information has described response message value form;
Information demapping unit, for obtaining binding information by described transmission information demapping; Wherein, described binding information is that the response message in described member carrier is carried out to the binding information that time-domain binding generates;
Information acquisition unit, for obtaining the response message of described main member carrier and auxiliary member carrier according to described binding information.
23. devices according to claim 22, is characterized in that, described channel-assignment unit comprises:
Main carrier channel-assignment unit, in the time that the PDSCH sending on main member carrier indicates by physical downlink control channel PDCCH, the control channel unit CCE label taking with described PDCCH is that main member carrier distributes the first responder link; In the time that the described PDSCH sending on main member carrier does not indicate by PDCCH, be that main member carrier distributes described the first responder link by the mode of explicit signaling.
24. devices according to claim 23, is characterized in that,
Described main carrier channel-assignment unit, for by radio resource control RRC signaling, is also that main member carrier distributes the second responder link.
25. devices according to claim 22, is characterized in that, described channel-assignment unit also comprises:
Auxiliary carrier channel allocation units, for indicate by PDCCH as the PDSCH of described auxiliary member carrier carrying and described PDCCH when the main member carrier carrying, the CCE label taking with described PDCCH is that auxiliary member carrier distributes the first responder link.
26. devices according to claim 25, is characterized in that,
Described auxiliary carrier channel allocation units, also indicate ARI command word for the resource of replying of distributing the second responder link, described explicit signaling to comprise in RRC signaling PDCCH by explicit signaling.
27. devices according to claim 22, is characterized in that, described channel-assignment unit also comprises:
Auxiliary carrier channel allocation units, for in the time that the PDSCH of described auxiliary member carrier carrying indicates by PDCCH, distribute the second responder link by explicit signaling, the resource of replying that described explicit signaling comprises in RRC signaling and described PDCCH is indicated ARI command word.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101594211A (en) * | 2009-06-19 | 2009-12-02 | 中兴通讯股份有限公司 | Send the method for correct/error response message in the multicarrier system of big bandwidth |
| CN101841400A (en) * | 2009-03-17 | 2010-09-22 | 大唐移动通信设备有限公司 | Method for transmitting ACK/NACK in carrier aggregation system and base station |
| CN101873706A (en) * | 2009-04-24 | 2010-10-27 | 北京三星通信技术研究有限公司 | Method for feeding back identified/unidentified message in multi-carrier system |
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| CN101841400A (en) * | 2009-03-17 | 2010-09-22 | 大唐移动通信设备有限公司 | Method for transmitting ACK/NACK in carrier aggregation system and base station |
| CN101873706A (en) * | 2009-04-24 | 2010-10-27 | 北京三星通信技术研究有限公司 | Method for feeding back identified/unidentified message in multi-carrier system |
| CN101594211A (en) * | 2009-06-19 | 2009-12-02 | 中兴通讯股份有限公司 | Send the method for correct/error response message in the multicarrier system of big bandwidth |
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