CN101998656A - Uplink control information feedback and receiving method, base station and relay station - Google Patents
Uplink control information feedback and receiving method, base station and relay station Download PDFInfo
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Abstract
The invention discloses an uplink control information feedback and receiving method, a base station and a relay station, which can maintain the orthogonality of a PUCCH (Physical Uplink Control Channel) of the relay station and a PUCCH of UE (user equipment) while realizing the flexible PUCCH resource distribution of the relay station. The uplink control information feedback method comprises the following steps of: receiving PUCCH format 2/2a/2b channel resources distributed by the base station; and feeding back uplink control information on the PUCCH format 2/2a/2b channel resources, wherein the uplink control information comprises answering information and/or SRI information. The method for receiving the uplink control information comprises the following steps of: assigning the PUCCH format 2/2a/2b channel resources to the relay station, and receiving the uplink control information fed back by the relay station on the PUCCH format 2/2a/2b channel resources, wherein the uplink control information comprises answering information and/or SRI information. The embodiment of the invention can maintain the orthogonality of the PUCCH of the relay station and the PUCCH of the UE while realizing the flexible PUCCH resource distribution of the relay station.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of ascending control information feedback and the method and base station and the relay station that receive.
Background technology
(Long Term Evolution Advanced, LTE-A) system adopts relaying technique to support covering, group's mobility and the cell edge throughput etc. of high data rate transfers in senior Long Term Evolution enhancing.In the LTE-A system, communicate by back haul link between relay station and the base station, communicate by access link between the subscriber equipment Relay UE of relay station and its service, the user equipment (UE) of non-relay station service by conventional link directly and the base station communicate.
In the LTE-A system, relay station and UE can pass through Physical Uplink Control Channel (Physical UplinkControl Channel, PUCCH) in the control information of sub-frame of uplink feeding back uplink, for example dispatch request is indicated (Scheduling Request Indicator, SRI), confirm to reply ACK, deny replying NACK, order indication (Rank Indicator, RI), channel quality indication (Channel Quality Indicator, CQI) and pre-coding matrix indication (Precoding Matrix Indicator, PMI) etc.
At present, relay station is by the sub-frame of uplink feeding back uplink control information of PUCCH channel at back haul link, but R-PUCCH form 1/1a/1b channel can cause OC (the Orthogonal Cover on the time domain, orthogonal sequence) the time domain OC of length and PUCCH form 1/1a/1b channel is uneven in length, when R-PUCCH form 1/1a/1b channel uses identical or adjacent CAZAC (Constant AmplitudeZero Auto-Correlation with PUCCH form 1/1a/1b channel, constant amplitude zero auto-correlation) during sequence cyclic shift, just can not well keep the orthogonality of interchannel and cause the dumb of PUCCH resource allocation.
Summary of the invention
The embodiment of the invention provides a kind of method of feeding back uplink control information, can realize that relay station flexibly in the PUCCH channel resource allocation, is kept the orthogonality of relay station PUCCH channel and UE PUCCH channel.
For solving the problems of the technologies described above, the embodiment of the invention adopts following technical scheme:
A kind of method of feeding back uplink control information comprises:
Receive the Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource of base station assigns;
Feeding back uplink control information on described PUCCH form 2/2a/2b channel resource;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
The embodiment of the invention also provides a kind of method that receives ascending control information, can realize that relay station flexibly in the PUCCH channel resource allocation, is kept the orthogonality of relay station PUCCH channel and UE PUCCH channel.
For solving the problems of the technologies described above, the embodiment of the invention adopts following technical scheme:
A kind of method that receives ascending control information comprises:
Distribute Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource to relay station;
On described PUCCH form 2/2a/2b channel resource, receive the ascending control information of described relay station feedback;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
The embodiment of the invention also provides a kind of base station, can realize keeping the orthogonality of relay station PUCCH channel and UE PUCCH channel to when relay station PUCCH channel resource reservation flexibly and distributing.
A kind of base station comprises:
Allocation units are used to relay station to distribute Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource;
First receiving element is used to receive the ascending control information that described relay station feeds back on described PUCCH form 2/2a/2b channel resource;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
The embodiment of the invention also provides a kind of relay station, can realize that relay station flexibly in the PUCCH channel resource allocation, is kept the orthogonality of relay station PUCCH channel and UE PUCCH channel.
A kind of relay station comprises:
Second receiving element is used to receive the Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource of base station assigns;
Transmitting element is used for feeding back uplink control information on described PUCCH form 2/2a/2b channel resource;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
Adopt described method and apparatus, can be on PUCCH form 2/2a/2b channel resource feeding back uplink response message and/or SRI information after Gap takies part of O FDM symbol, because PUCCH form 2/2a/2b channel only passes through the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, orthogonality between the channel resource is not subjected to the influence of Gap existence, thereby can keep the orthogonality of relay station R-PUCCH channel and the equipment PUCCH of domestic consumer interchannel well.In addition, when a PUCCH form 2/2a/2b channel resource is assigned to relay station, adjacent or close PUCCH form 2/2a/2b channel resource can be distributed to domestic consumer's equipment or relay station arbitrarily, has realized that the base station is to relay station PUCCH channel resource reservation flexibly and distribution.
Description of drawings
Apparently, the accompanying drawing that describes below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the existing LTE-A system schematic that adopts relaying technique;
Fig. 2 is existing relay station backhaul link sub-frame of uplink topology example;
Fig. 3 is for having under the short Cyclic Prefix subframe structure PUCCH form 1/1a/1b channel architecture schematic diagram in first time slot now;
Fig. 4 is for having under the short Cyclic Prefix subframe structure PUCCH form 2/2a/2b channel architecture schematic diagram in first time slot now;
Fig. 5 is for having under the short Cyclic Prefix subframe structure R-PUCCH form 1/1a/1b channel architecture schematic diagram in first time slot now;
Fig. 6 is for having under the short Cyclic Prefix subframe structure R-PUCCH form 2/2a/2b channel architecture schematic diagram in first time slot now;
Fig. 7 is the method flow diagram of the embodiment of the invention one feeding back uplink control information;
Fig. 8 is the method flow diagram that the embodiment of the invention two receives ascending control information;
Fig. 9 is the embodiment of the invention three architecture of base station figure;
Figure 10 is the method schematic diagram that relay station distributes the PUCCH channel resource for the base station;
Figure 11 is the first receiving element structure chart in the embodiment of the invention three;
Figure 12 is the embodiment of the invention four relay station structure charts;
Figure 13 is a transmitting element structure chart in the embodiment of the invention four.
Embodiment
The embodiment of the invention provides a kind of ascending control information feedback and the method and base station and the relay station that receive, can realize that relay station flexibly in the PUCCH channel resource allocation, is kept the orthogonality of relay station PUCCH channel and UE PUCCH channel.
Describe the present invention below in conjunction with accompanying drawing.Described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, be the LTE-A system schematic that adopts relaying technique.Usually, time and relay station that relay station receives the RelayUE data staggered mutually to the time that the base station sends data, with the interference to its received signal of the transmission signal of avoiding relay station on same frequency band or the nearby frequency bands.Relay station converts accepting state to or converts emission state to from accepting state from emission state all needs some change-over times.Consider that Relay UE may be LTE UE, its sub-frame of uplink (is the Elementary Time Unit of Data Receiving and transmission, a subframe is made of 2 time slots) be consistent with the sub-frame of uplink form of LTE UE, thereby at uplink direction, usually be arranged in above-mentioned change-over time in the sub-frame of uplink of relay station backhaul link, as shown in Figure 2, be included in the Gap that only is arranged in subframe beginning or subframe ending or is positioned at the subframe beginning and end simultaneously change-over time among the figure, a common Gap length is that 1 OFDM (Orthogonal Frequency DivisionMultiplexing, OFDM) symbol is long.
Relay station and UE can in a kind of method of sub-frame of uplink feeding back uplink control information be by the PUCCH channel: for the SRI transmission distributes PUCCH form 1 channel resource index, be ACK and/or NACK transmission distribution PUCCH form 1a/1b channel resource index, be RI and/or CQI and/or PMI transmission distribution PUCCH form 2/2a/2b channel resource index, and on the channel resource that distributes, uses relay station Physical Uplink Control Channel (Relay-PUCCH, R-PUCCH) the feeding back uplink control information that defines as relay station.Normally there is situation in the R-PUCCH channel architecture according to Gap, makes certain modification on corresponding PUCCH form channel architecture basis.
For example, under the short Cyclic Prefix subframe structure, in 1 time slot, PUCCH form 1/1a/1b channel and PUCCH form 2/2a/2b channel architecture are respectively as shown in Figure 3 and Figure 4.PUCCH form 1/1a/1b channel by the different cyclic shift code division multiplexings of CAZAC sequence, passes through the OC code division multiplexing of one 4 length and one 3 length simultaneously on time domain on frequency domain.PUCCH form 2/2a/2b channel only passes through the different cyclic shift code division multiplexings of CAZAC sequence on frequency domain.
If first OFDM symbol of relay station backhaul link sub-frame of uplink is taken by Gap, at first OFDM symbol that is taken by Gap, relay station is not sent out whatever so.A kind of R-PUCCH form 1/1a/1b channel of example passes through the OC code division multiplexing of two 3 length in first time slot inner structure as shown in Figure 5 on the time domain at this moment, and the structure in second time slot can be identical with Fig. 3; A kind of R-PUCCH form 2/2a/2b channel architecture of example in first time slot inner structure as shown in Figure 6, the structure in second time slot can be identical with Fig. 4.
In the above-mentioned technology, R-PUCCH form 1/1a/1b channel can cause the OC length on the time domain and the time domain OC of PUCCH form 1/1a/1b channel to be uneven in length, and for example length is that 4 OC OFDM symbol of living in removes that to use length behind the Gap in Fig. 5 be 3 OC among Fig. 3.Because time domain OC is uneven in length, when R-PUCCH form 1/1a/1b channel used identical or adjacent CAZAC sequence cyclic shift with PUCCH form 1/1a/1b channel, the orthogonality of interchannel can not well be kept.
Consider that PUCCH form 1/1a/1b channel has adopted timeslot-level CAZAC sequence cyclic shift and OC to remap technology, for keeping R-PUCCH channel and PUCCH channel orthogonality, simultaneously do not bring too much restriction and complexity again to scheduler, need with the separated physical resource piece and/or mixed PUCCH form 1/1a/1b channel and the Physical Resource Block of PUCCH form 2/2a/2b channel on all PUCCH form 1/1a/1b channel allocation be used for R-PUCCH form 1/1a/1b Channel Transmission, and this is than being easier to cause the dumb of the waste of reserving the PUCCH resource and PUCCH resource allocation.
The embodiment of the invention provides a kind of feedback and receives the method for ascending control information, can realize that relay station flexibly in the PUCCH channel resource allocation, is kept the orthogonality of relay station PUCCH channel and UE PUCCH channel.Below by specific embodiment, be described in detail respectively.
Embodiment one
As shown in Figure 7, the method for feeding back uplink control information comprises:
S71, relay station receive the PUCCH form 2/2a/2b channel resource of base station assigns.
S72, the feeding back uplink control information on described PUCCH form 2/2a/2b channel resource of described relay station; Wherein, described ascending control information comprises response message and/or SRI information.
Above-mentioned response message comprises ACK and/or NACK.
Further, described ascending control information can also comprise: RI and/or CQI and/or PMI information etc.
Adopt described method, described relay station can be on PUCCH form 2/2a/2b channel resource feeding back uplink response message and/or SRI information, after Gap takies part of O FDM symbol, because PUCCH form 2/2a/2b channel only passes through the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, the influence that orthogonality between the channel resource is not existed by Gap, thereby the orthogonality that can keep relay station R-PUCCH channel and the equipment PUCCH of domestic consumer interchannel well in addition, when relay station takies a PUCCH form 2/2a/2b channel resource, domestic consumer's equipment or relay station can use adjacent or close PUCCH form 2/2a/2b channel resource, have realized relay station PUCCH channel resource reservation flexibly and distribution.
Further, step S71 can comprise:
S710, described relay station receive the PUCCH form 2/2a/2b channel resource index that described base station sends
S711, described relay station be by the described PUCCH form of described channel resource index calculation 2/2a/2b channel resource, as the CAZAC sequence cyclic shift of Physical Resource Block that takies and use etc.
In the LTE system, PUCCH form 2/2a/2b channel resource index
Be that the base station sends to subscriber equipment by proprietary high-level signaling.In the LTE-A system, if the base station still sends PUCCH form 2/2a/2b channel resource index by proprietary high-level signaling to relay station
Because proprietary high-level signaling is by the Physical Downlink Shared Channel transmission, so the response message feedback of proprietary high-level signaling transmission is had the need for further discussion.When initial access base station, relay station needs to carry out earlier Cell searching with synchronously, and the resource of read system message and distribution (for example PUCCH channel resource and back haul link sub-frame configuration etc.) could provide service for Relay UE afterwards.Also promptly when the proprietary high-level signaling of first pass obtains PUCCH form 2/2a/2b channel resource index, relay station and the same corresponding response message of PUCCH form 1/1a/1b channel feedback that uses current instantaneous distribution of domestic consumer's equipment.For relay station has distributed PUCCH form 2/2a/2b channel resource index, when the base station will be redistributed by proprietary high-level signaling, can use the PUCCH form 2/2a/2b channel resource of distribution to the response message feedback of proprietary high-level signaling transmission when.Behind relay station and base station step-out, can carry out again earlier synchronously and the resource of read system message and distribution, continue to provide service for Relay UE again.
Further, step S72 is specially: described relay station feeds back described ascending control information (for example: response message and/or SRI information and/or RI and/or CQI and/or PMI information etc.) according to R-PUCCH form 2/2a/2b channel architecture on described PUCCH form 2/2a/2b channel resource.When relay station has multiple ascending control information to feed back simultaneously, can on the PUCCH form 2/2a/2b channel resource that distributes, transmit together behind the multiple ascending control information combined coding.
Alternatively, step S72 can also be specially: described relay station feeds back described ascending control information according to R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource.This kind situation is applicable to that described ascending control information is: response message and/or SRI information.
Because the main distinction of described PUCCH form 1/1a/1b channel architecture and described PUCCH form 2/2a/2b channel architecture is: the former has increased time domain OC sign indicating number to improve the ability of code division multiplexing on latter basis, so described relay station when feeding back described ascending control information according to R-PUCCH form 1/1a/1b channel architecture, need increase time domain OC sign indicating number on the PUCCH form 2/2a/2b channel resource that distributes.So above-mentioned described relay station feeds back described ascending control information according to R-PUCCH form 1/1a/1b channel architecture and comprises on described PUCCH form 2/2a/2b channel resource:
S720, described relay station obtain the Physical Resource Block and the employed CAZAC sequence cyclic shift of described R-PUCCH form 1/1a/1b channel occupancy by described PUCCH form 2/2a/2b channel resource;
S721, described relay station increase time domain OC sign indicating number on described PUCCH form 2/2a/2b channel resource;
S722, described relay station feed back described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture.
Above-mentioned steps S721 specifically comprises:
S7210, described relay station obtain described OC sign indicating number according to the type (for example replying or SRI) of described ascending control information according to preset rules, promptly at first obtain the employed OC sign indicating number of described R-PUCCH form 1/1a/1b channel index, obtain described OC sign indicating number according to described OC sign indicating number index then according to the type of described ascending control information.
For example, in the LTE system, employed 3 length and 4 long OC sign indicating numbers are respectively as shown in Table 1 and Table 2.For relay station, can be according to being that feeding back uplink response message or feedback SRI information are obtained the employed OC sign indicating number of R-PUCCH form 1/1a/1b channel index, thus obtain corresponding OC sign indicating number sequence.For example, during the feeding back uplink response message, all making index of reference at two time slots is 0 OC sign indicating number sequence, and all making index of reference during feedback SRI information in two time slots is 1 OC sign indicating number sequence.Note, although what used this moment is R-PUCCH form 1/1a/1b channel architecture, but for the relay station distribution is PUCCH form 2/2a/2b channel resource, have only timeslot-level CAZAC sequence cyclic shift to remap, by the different cyclic shift total energy maintenances and the orthogonality of other subscriber equipment PUCCH channel resource.
S7211, described relay station increase time domain OC sign indicating number on described PUCCH form 2/2a/2b channel resource.
In addition, when relay station has multiple ascending control information feedback simultaneously, feed back after can be with reference to the time division multiplexing mode of LTE system definition multiplexing, no longer describe in detail herein.
The 3 long OC sign indicating numbers that use in the table 1 LTE system
OC sign indicating number index | 3 long OC sign indicating number sequences |
0 | [111] |
1 | [1e j2π/3e j4π/3] |
2 | [1e j4π/3e j2π/3] |
The 4 long OC sign indicating numbers that use in the table 2 LTE system
OC sign indicating number index | 4 long OC sign indicating number sequences |
0 | [+1+1+1+1] |
1 | [+1-1+1-1] |
2 | [+1-1-1+1] |
Embodiment two
As shown in Figure 8, receive the method for ascending control information, comprising:
S82, described base station receive the ascending control information of described relay station feedback on described PUCCH form 2/2a/2b channel resource; Wherein, described ascending control information comprises response message and/or SRI information.
Above-mentioned response message comprises ACK and/or NACK.
Further, described ascending control information can also comprise: RI and/or CQI and/or MI information etc.
Because the base station can be up response message and/or SRI information distribution PUCCH form 2/2a/2b channel resource, after Gap takies part of O FDM symbol, because PUCCH form 2/2a/2b channel only passes through the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, orthogonality between the channel resource is not subjected to the influence of Gap existence, thereby can keep the orthogonality of relay station R-PUCCH channel and the equipment PUCCH of domestic consumer interchannel well.In addition, when a PUCCH form 2/2a/2b channel resource is assigned to relay station, adjacent or close PUCCH form 2/2a/2b channel resource can be distributed to domestic consumer's equipment or relay station arbitrarily, has realized that the base station is to relay station PUCCH channel resource reservation flexibly and distribution.
Further, step S81 can comprise:
S810, described base station send the index of the PUCCH form 2/2a/2b channel resource that is distributed to described relay station
S811, described base station are by described channel resource index
Calculate described PUCCH form 2/2a/2b channel resource, as the CAZAC sequence cyclic shift of Physical Resource Block that takies and use etc.
Further, among the step S81, described base station can be distributed the PUCCH form 2/2a/2b channel resource of a described response message of carrying and/or SRI information to described relay station, and distributes another to carry the PUCCH form 2/2a/2b channel resource of described RI and/or CQI and/or PMI information.Certainly, described base station also can be distributed the PUCCH form 2/2a/2b channel resource of all described ascending control informations of carrying to described relay station.
Further, step S82 can be specially: described base station receives described ascending control information (for example: response message and/or SRI information and/or RI and/or CQI and/or PMI information etc.) according to R-PUCCH form 2/2a/2b channel architecture on described PUCCH form 2/2a/2b channel resource.
Alternatively, step S82 also can be specially: described base station receives described ascending control information according to R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource.This kind situation is applicable to that described ascending control information is: response message and/or SRI information.
Because the main distinction of described PUCCH form 1/1a/1b channel architecture and described PUCCH form 2/2a/2b channel architecture is: the former has increased time domain OC sign indicating number to improve the ability of code division multiplexing on latter basis, so described base station when receiving described ascending control information according to R-PUCCH form 1/1a/1b channel architecture, need increase time domain OC sign indicating number on the PUCCH form 2/2a/2b channel resource that is distributed.So above-mentioned described base station receives described ascending control information according to R-PUCCH form 1/1a/1b channel architecture and comprises on described PUCCH form 2/2a/2b channel resource:
S820, described base station obtain the Physical Resource Block and the employed CAZAC sequence cyclic shift of described R-PUCCH form 1/1a/1b channel occupancy by described PUCCH form 2/2a/2b channel resource;
S821, described base station increase time domain OC sign indicating number on described PUCCH form 2/2a/2b channel resource;
Wherein, this step S821 can comprise:
S8210, described base station obtain described OC sign indicating number according to the type (for example replying or SRI) of described ascending control information according to preset rules, promptly obtain the employed OC sign indicating number of described R-PUCCH form 1/1a/1b channel index, and obtain described OC sign indicating number according to described OC sign indicating number index according to the type of described ascending control information.This step and step S7210 are similar, no longer describe in detail.
S8211, described base station increase time domain OC sign indicating number on described PUCCH form 2/2a/2b channel resource.
S822, described base station receive described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture.
Embodiment three
As shown in Figure 9, a kind of base station 900 comprises the allocation units 901 and first receiving element 902.Wherein:
Described allocation units 901 illustrate for relay station distributes method such as Figure 10 of PUCCH channel resource, wherein
Expression is used to transmit the maximum resource piece number of PUCCH form 2/2a/2b channel,
Be illustrated in the cyclic shift number of the CAZAC sequence of distributing to PUCCH form 1/1a/1b channel on the PUCCH mixing Resource Block,
The initial biasing that resource is shone upon is dynamically replied in expression in all PUCCH form 1/1a/1b channels.
First receiving element 902 is used to receive the ascending control information that described relay station feeds back on described PUCCH form 2/2a/2b channel resource.
Wherein, described ascending control information comprises: response message and/or SRI information.Described ascending control information can also comprise: RI and/or CQI and/or PMI information etc.Above-mentioned response message comprises ACK and/or NACK.
Because base station 900 can be up response message and/or SRI information distribution PUCCH form 2/2a/2b channel resource, after Gap takies part of O FDM symbol, because PUCCH form 2/2a/2b channel only passes through the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, orthogonality between the channel resource is not subjected to the influence of Gap existence, thereby can keep the orthogonality of relay station R-PUCCH channel and the equipment PUCCH of domestic consumer interchannel well.In addition, when a PUCCH form 2/2a/2b channel resource is assigned to relay station, adjacent or close PUCCH form 2/2a/2b channel resource can be distributed to domestic consumer's equipment or relay station arbitrarily, has realized that the base station is to relay station PUCCH channel resource reservation flexibly and distribution.
Further, described allocation units 901 can distribute the PUCCH form 2/2a/2b channel resource of a described response message of carrying and/or SRI information to described relay station, and distribute another to carry the PUCCH form 2/2a/2b channel resource of described RI and/or CQI and/or PMI information.Certainly, described allocation units 901 also can distribute the PUCCH form 2/2a/2b channel resource of all described ascending control informations of carrying to described relay station.
Further, described first receiving element 902 can be received in the ascending control information (for example: response message and/or SRI information and/or RI and/or CQI and/or PMI information etc.) that feeds back on the described PUCCH form 2/2a/2b channel resource according to R-PUCCH form 2/2a/2b channel architecture.Certainly, described first receiving element 902 also can be received in the ascending control information that feeds back on the described PUCCH form 2/2a/2b channel resource according to R-PUCCH form 1/1a/1b channel architecture, but this kind situation is only applicable to described ascending control information is: response message and/or SRI information.
When described first receiving element 902 was received in the ascending control information that feeds back on the described PUCCH form 2/2a/2b channel resource according to R-PUCCH form 1/1a/1b channel architecture, as shown in figure 11, described first receiving element 902 comprised:
Embodiment four
As shown in figure 12, a kind of relay station 1200 comprises:
Transmitting element 1202 is used for feeding back uplink control information on described PUCCH form 2/2a/2b channel resource.
Wherein, described ascending control information comprises response message and/or SRI information.Described ascending control information also comprises: RI and/or CQI and/or PMI information etc.Above-mentioned response message comprises ACK and/or NACK.
Since relay station 1200 can be on PUCCH form 2/2a/2b channel resource feeding back uplink response message and/or SRI information, after Gap takies part of O FDM symbol, because PUCCH form 2/2a/2b channel only passes through the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, orthogonality between the channel resource is not subjected to the influence of Gap existence, thereby can keep the orthogonality of relay station R-PUCCH channel and the equipment PUCCH of domestic consumer interchannel well.In addition, when relay station 1200 takies a PUCCH form 2/2a/2b channel resource, domestic consumer's equipment or relay station can use adjacent or close PUCCH form 2/2a/2b channel resource, have realized relay station PUCCH channel resource reservation flexibly and distribution.
Further, described transmitting element 1202 can feed back described ascending control information (for example: response message and/or SRI information and/or RI and/or CQI and/or PMI information etc.) according to R-PUCCH form 2/2a/2b channel architecture on described PUCCH form 2/2a/2b channel resource.Certainly, described transmitting element 1202 also can feed back described ascending control information according to R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource, but this kind situation is only applicable to described ascending control information be: response message and/or SRI information.
When described transmitting element 1202 fed back described ascending control information according to R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource, as shown in figure 13, described transmitting element 1202 comprised:
Second acquisition module 1301, be used for by described PUCCH form 2/2a/2b channel resource, obtain the Physical Resource Block of R-PUCCH form 1/1a/1b channel occupancy and the CAZAC sequence cyclic shift of use, obtain time domain OC sign indicating number according to preset rules according to the type (for example replying or SRI) of described ascending control information;
Sending module 1302 is used for the result that obtains based on described second acquisition module 1301, feeds back described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource.
In the various embodiments described above, described R-PUCCH form 2/2a/2b channel, be meant the OFDM symbol that takies except that Gap do not send out whatever, have structure on other OFDM symbol by the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, a kind of example is as shown in Figure 6; Described R-PUCCH form 1/1a/1b channel, be meant the OFDM symbol that takies except that Gap do not send out whatever, have simultaneously structure on other OFDM symbol by the time domain OC sign indicating number and the different cyclic shift code division multiplexings of frequency domain CAZAC sequence, a kind of example is as shown in Figure 5.
One of ordinary skill in the art will appreciate that, realize all or part of flow process in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.
Claims (21)
1. the method for a feeding back uplink control information is characterized in that, comprising:
Receive the Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource of base station assigns;
Feeding back uplink control information on described PUCCH form 2/2a/2b channel resource;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
2. method according to claim 1 is characterized in that, the Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource of described reception base station assigns comprises:
Receive the PUCCH form 2/2a/2b channel resource index that described base station sends;
By the described PUCCH form of described channel resource index calculation 2/2a/2b channel resource.
3. method according to claim 1 is characterized in that, described ascending control information also comprises: order indication and/or channel quality indication and/or pre-coding matrix indication information.
4. according to claim 1 or 3 described methods, it is characterized in that, described on described PUCCH form 2/2a/2b channel resource the feeding back uplink control information be specially:
Channel architecture according to relay station Physical Uplink Control Channel R-PUCCH form 2/2a/2b on described PUCCH form 2/2a/2b channel resource feeds back described ascending control information.
5. method according to claim 1 is characterized in that, described on described PUCCH form 2/2a/2b channel resource the feeding back uplink control information be specially:
Channel architecture according to R-PUCCH form 1/1a/1b on described PUCCH form 2/2a/2b channel resource feeds back described ascending control information.
6. method according to claim 5 is characterized in that, describedly feeds back described ascending control information according to R-PUCCH form 1/1a/1b channel architecture comprise on described PUCCH form 2/2a/2b channel resource:
By described PUCCH form 2/2a/2b channel resource, obtain the Physical Resource Block of described R-PUCCH form 1/1a/1b channel occupancy and the constant amplitude zero autocorrelation sequence cyclic shift of described R-PUCCH form 1/1a/1b channel use;
On described PUCCH form 2/2a/2b channel resource, increase time domain orthogonal sequence OC sign indicating number;
Feed back described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture.
7. method according to claim 6 is characterized in that, the described time domain orthogonal sequence OC sign indicating number that increases on described PUCCH form 2/2a/2b channel resource comprises:
Type according to described ascending control information is obtained described OC sign indicating number according to preset rules;
On described PUCCH form 2/2a/2b channel resource, increase time domain orthogonal sequence OC sign indicating number.
8. a method that receives ascending control information is characterized in that, comprising:
Distribute Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource to relay station;
On described PUCCH form 2/2a/2b channel resource, receive the ascending control information of described relay station feedback;
Wherein, described ascending control information comprises response message and/or dispatch request indication SRI information.
9. method according to claim 8 is characterized in that, describedly distributes Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource to comprise to relay station:
Send the index of the PUCCH form 2/2a/2b channel resource that is distributed to described relay station;
By the described PUCCH form of described channel resource index calculation 2/2a/2b channel resource.
10. method according to claim 8 is characterized in that, described ascending control information also comprises: order indication RI and/or channel quality indicator (CQI) and/or pre-coding matrix indication PMI information.
11. method according to claim 10 is characterized in that, describedly distributes Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource to be specially to relay station:
Distribute the PUCCH form 2/2a/2b channel resource of a described response message of carrying and/or described SRI information to described relay station, distribute another to carry the PUCCH form 2/2a/2b channel resource of described RI and/or described CQI and/or described PMI information; Perhaps
The PUCCH form 2/2a/2b channel resource that distributes all described ascending control informations of carrying to described relay station.
12. according to Claim 8 or 10 described methods, it is characterized in that the described ascending control information that receives described relay station feedback on described PUCCH form 2/2a/2b channel resource is specially:
Channel architecture according to relay station Physical Uplink Control Channel R-PUCCH form 2/2a/2b on described PUCCH form 2/2a/2b channel resource receives described ascending control information.
13. method according to claim 8 is characterized in that, the described ascending control information that receives described relay station feedback on described PUCCH form 2/2a/2b channel resource is specially:
On described PUCCH form 2/2a/2b channel resource, receive described ascending control information according to R-PUCCH form 1/1a/1b channel architecture.
14. method according to claim 13 is characterized in that, describedly receives described ascending control information according to R-PUCCH form 1/1a/1b channel architecture comprise on described PUCCH form 2/2a/2b channel resource:
By described PUCCH form 2/2a/2b channel resource, obtain the Physical Resource Block of described R-PUCCH form 1/1a/1b channel occupancy and the constant amplitude zero autocorrelation sequence cyclic shift of described R-PUCCH form 1/1a/1b channel use;
On described PUCCH form 2/2a/2b channel resource, increase time domain orthogonal sequence OC sign indicating number;
Receive described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture.
15. method according to claim 14 is characterized in that, the described time domain orthogonal sequence OC sign indicating number that increases on described PUCCH form 2/2a/2b channel resource comprises:
Type according to described ascending control information is obtained described OC sign indicating number according to preset rules;
On described PUCCH form 2/2a/2b channel resource, increase time domain orthogonal sequence OC sign indicating number.
16. a base station is characterized in that, comprising:
Allocation units are used to relay station to distribute Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource;
First receiving element is used to receive the ascending control information that described relay station feeds back on described PUCCH form 2/2a/2b channel resource;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
17. base station according to claim 16 is characterized in that, described ascending control information also comprises: order indication and/or channel quality indication and/or pre-coding matrix indication information.
18. base station according to claim 16 is characterized in that, described first receiving element comprises:
First acquisition module, be used for by described PUCCH form 2/2a/2b channel resource, obtain the Physical Resource Block and the employed constant amplitude zero autocorrelation sequence cyclic shift of relay station Physical Uplink Control Channel R-PUCCH form 1/1a/1b channel occupancy, obtain time domain orthogonal sequence OC sign indicating number according to preset rules according to the type of described ascending control information;
Receiver module is used for the result that obtains based on described first acquisition module, feeds back described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource.
19. a relay station is characterized in that, comprising:
Second receiving element is used to receive the Physical Uplink Control Channel PUCCH form 2/2a/2b channel resource of base station assigns;
Transmitting element is used for feeding back uplink control information on described PUCCH form 2/2a/2b channel resource;
Wherein, described ascending control information comprises response message and/or dispatch request indication information.
20. relay station according to claim 19 is characterized in that, described ascending control information also comprises: order indication and/or channel quality indication and/or pre-coding matrix indication information.
21. relay station according to claim 19 is characterized in that, described transmitting element comprises:
Second acquisition module, be used for by described PUCCH form 2/2a/2b channel resource, obtain the Physical Resource Block and the employed constant amplitude zero autocorrelation sequence cyclic shift of relay station Physical Uplink Control Channel R-PUCCH form 1/1a/1b channel occupancy, obtain time domain orthogonal sequence OC sign indicating number according to preset rules according to the type of described ascending control information;
Sending module is used for the result that obtains based on described second acquisition module, feeds back described ascending control information according to described R-PUCCH form 1/1a/1b channel architecture on described PUCCH form 2/2a/2b channel resource.
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