CN101636962A - In evolved UTRA to the transmission of ACK/NACK and through-put power Control and Feedback - Google Patents
In evolved UTRA to the transmission of ACK/NACK and through-put power Control and Feedback Download PDFInfo
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Abstract
A kind of method that is used to transmit the feedback information of wireless transmission receiving element (WTRU), described method comprises: described feedback information and uplink shared channel is multiplexing, with multiplexing feedback information be mapped to the OFDM symbol and transmit this feedback information to e Node B (eNB).Described method comprises that also the distributed frequency division multiplexing of use (FDM) is multiplexing with described feedback information and uplink shared channel, described feedback information is mapped to first OFDM (OFDM) symbol, and the feedback information that is shone upon equidistantly is distributed on the transmission bandwidth.
Description
Technical field
The present invention relates to radio communication.
Background technology
Third generation partner program (3GPP) Long Term Evolution (LTE) project goal is that exploitation is used for new technology, new architecture and the new method in wireless communication system setting and configuration, and user experience reaches abundanter application and service so that brought faster to the user originally with lower becoming in order to improve spectrum efficiency, reduce the stand-by period and to utilize radio resource better.
In order to reduce the signaling consumption in 3GPP LTE system, shown predetermined mapping one to one between the index of the index of up link shared data channel and downlink physical resource and carried and be used for replying/non-replying (ACK/NACK) feedback of uplink data transmission.Wireless transmission receiving element (WTRU) sign (ID) is carried by implicit expression with ACK/NACK information.WTRU can receive ACK/NACK and not decode any additional side (side) information.
Through-put power control (TPC) transmission of Information of uplink data is to consider at LTE.A kind of TPC's is desired with transmission reliably effectively.
Summary of the invention
A kind of method and apparatus that is used to transmit the feedback information of WTRU is disclosed.Described method can comprise with uplink shared channel implicit expression mapping feedback information, and transmit this feedback information to e Node B (eNB).Described method also comprises use distributed frequency division multiplexing (FDM), code division multiplexing (CDM) or mixes FDM/CDM feedback information and uplink shared channel is multiplexing, feedback information is mapped to OFDM (OFDM) symbol, and the feedback information of mapping equidistantly is distributed on the transmission bandwidth.
Description of drawings
Can be understood in more detail from following description, these descriptions are that the mode with embodiment provides and can be understood in conjunction with the accompanying drawings, wherein:
Fig. 1 has shown the example according to a kind of wireless communication system of execution mode;
Fig. 2 has shown WTRU among Fig. 1 and the functional block diagram of eNB;
Fig. 3 is a subclass of using the mapping of the replying of distributed frequency division multiplexing (FDM)/non-responder link (ACKCH) according to a kind of execution mode;
Fig. 4 is the subclass according to the mapping of the replying of the distributed frequency division multiplexing of use (FDM) of replacing execution mode/non-responder link (ACKCH);
Fig. 5 is the subclass of mapping of replacing the replying of the distributed frequency division multiplexing of use (the FDM)/non-responder link (ACKCH) of execution mode according to another;
Fig. 6 is the mapping according to the ACKCH of the use of another execution mode distributed mixing FDM/ code division multiplexing (CDM); And
Fig. 7 is the mapping of ACKCH of distributed mixing FDM/CDM that has the radio bearer (RB) of two localizations according to another use of replacing execution mode.
Embodiment
The term of hereinafter quoting " wireless transmitter/receiver unit (WTRU) " is including, but not limited to the subscriber equipment of subscriber equipment (UE), mobile radio station, fixing or moving user unit, beep-pager, cell phone, PDA(Personal Digital Assistant), computer or other any kind that can work in wireless environment.The term of hereinafter quoting " base station " is including, but not limited to the interface equipment of Node B, site controller, access point (AP) or other any kind that can work in wireless environment.
Fig. 1 has shown the wireless communication system 100 that comprises a plurality of WTRU 110 and an eNB 120.As shown in Figure 1, WTRU 110 communicates by letter with eNB 120.Although in Fig. 1, shown three WTRU110 and an eNB 120, it should be noted that any combination of wireless and wired equipment can be included in the wireless communication system 100.
Fig. 2 is the WTRU 110 of the wireless communication system 100 among Fig. 1 and functional block Figure 200 of eNB 120.As shown in Figure 2, WTRU 110 communicates by letter with eNB 120.WTRU 110 is configured to permit from eNB 120 receiving schedulings.This WTRU also is configured to receive ack/nack signals and power control signal and transferring ACK/NACK signal and power control signal to eNB 120 from eNB 120.ENB and WTRU both are configured to handle modulated and encoded signals.
Except the assembly that can find in typical WTRU, this WTRU 110 also comprises processor 215, receiver 216, transmitter 217 and antenna 218.Receiver 216 is all communicated by letter with processor 215 with transmitter 217.Both communicate by letter antenna 218 and receiver 216 and transmitter 217 so that the transmission of wireless data and reception.
Except the assembly that can find in typical eNB, eNB 120 comprises processor 225, receiver 226, transmitter 227 and antenna 228.Receiver 226 is all communicated by letter with processor 225 with transmitter 227.Both communicate by letter antenna 228 and receiver 226 and transmitter 227 so that the transmission of wireless data and reception.
ENB 120 comprises scheduler 228.Scheduler 228 monitoring and processing ask distributed resource from the request of WTRU 110 and according to this.Usually, WTRU 110 can or continue in the dynamic dispatching pattern to operate in (persistently) scheduling method.In the dynamic dispatching pattern, for each Transmission Time Interval (TTI), the scheduling decision is made by scheduler 228, and scheduling grant is transferred to WTRU 110 from eNB 120.In the continuous dispatching pattern, scheduling grant is not all to transmit in each TTI.Opposite, eNB can transmit single scheduling grant at a plurality of TTI.
When in the dynamic dispatching pattern, eNB 120 can be in the uplink scheduling permission transferring ACK/nack message and TPC information, this uplink scheduling permission is sent to WTRU 110.
Yet when in the continuous dispatching pattern, eNB 120 does not transmit conventionally line link scheduling grant.And change into, the implicit expression that eNB 120 can use uplink shared channel is shone upon through-put power control (TPC) information and the ACK/NACK information transmitted.ACK/NACK information can be transmitted in ACK/NACK channel (ACKCH), and TPC information is transmitted in TPC channel (TPCCH), also can ACK/NACK information and all transmission in ACK/NACK/TPC channel (ATCH) of TPC information.In order to describe the purpose of specific implementations, can use any channel.One skilled in the art will recognize that a channel can be used to replace another, and method and apparatus disclosed herein is not that channel is specific.
In an example, the 10MHz bandwidth in the up link can be used in the sub-district, comprises 50 radio bearers.After the use that by the uplink control channel such as Random Access Channel (RACH), responder link (ACKCH) and channel quality index channel (CQICH) is resource reduces, can support 44-48 up link WTRU simultaneously.Therefore in down link, may need 44-48 ACKCH, each WTRU is had an ACKCH.
Each communication channel can comprise several resource elements (RE), and wherein RE is defined the temporal subcarrier as an OFDM (OFDM) symbol.For mimo system, in each first and second OFDM symbol, there are 200 reference signal tones (tone) (RE) and 400 non-reference signal tones (RE) simultaneously with 4 antennas.ACKCH can occupy K and distribute and equidistant RE.Because duration of OFDM symbol than channel much shorter coherence time, therefore splits RE more than on the OFDM symbol time will seldom can the creation-time diversity.Therefore, the K of an ACKCH RE can be mapped to an OFDM symbol.ACKCH can be mapped to any one in the individual OFDM symbol of preceding n (n≤3).Yet, ACKCH may be mapped among the TTI first or OFDM symbol the earliest to keep the HARQ stand-by period to all WTRU unanimities.
Owing to there are 200 reference signal tones to use on down link, and 44-48 WTRU simultaneously be on up link, the special-purpose ACKCH of each WTRU needs, and the value of K is limited to 4.If up link is limited to the WTRU of 40 whiles, then K can equal 5.
Have many inputs of 2 antennas/export in (MIMO) system, 200 in the subcarrier will comprise reference signal, stay 400 non-reference signal tones more.In order to hold the WTRU of 44 whiles, K can be not more than 9, and for 48 WTRU, K can be not more than 8.If 40 WTRU need to support that K can equal 10.
For 44 WTRU in up link, if ACKCH is mapped to the OFDM symbol that does not carry any reference signal and 600 available non-reference signal tones, the maximum of K is 13.For 48 WTRU in up link, the maximum of K is 14.If support 40 WTRU, then the value of K can be up to 15.
Fig. 3 is the subclass according to the complete mapping ACK CH 300 of the distributed frequency division multiplexing of a kind of use of execution mode (FDM).Described complete mapping is the resource grids of 600 subcarriers according to seven (7) individual OFDM symbols.What show among Fig. 3 is the subclass that shows the complete mapping of subcarrier 1 to 6 (350), subcarrier 145 to 150 (360) and subcarrier 289 to 294 (370).Subcarrier is mapped to seven (7) individual OFDM symbols 306.Data symbol (D) 318, control character (C) 316, data or control character (B) 320, the antenna reference symbol (T in addition that show simultaneously
X) 310 and carry the symbol (308,312,314) of ACKCH.Each ACKCH symbol (308,312,314) can be separated by equidistantly to be distributed on all subcarriers, and cannot occupy and antenna reference signal (T
X) 310 identical spaces.For example, ACKCH 300 can be mapped to the OFDM symbol at subcarrier 1 (312), subcarrier 145 (314), subcarrier 289 (308) and subcarrier 433 (not shown) places.
Replacedly, ACKCH 300 can be mapped to the symbol in the subcarrier of center.Fig. 4 is the subclass according to the complete mapping of the ACKCH 300 of the distributed frequency division multiplexing of the use of replaceable execution mode (FDM).Fig. 4 shows is particularly from an OFDM symbol of the subcarrier of subcarrier 200 to 205 (450), subcarrier 248 to 253 (460) and subcarrier 292 to 297 (470) from middle frequency spectrum.ACKCH 300 can be mapped to the symbol at subcarrier 200 (402), subcarrier 248 (404), subcarrier 292 (406) and subcarrier 336 (not shown) places.
Replace execution mode according to another, ACKCH 300 can be mapped to the symbol at the subcarrier place of the outside that is positioned at wave band.Fig. 5 is the subclass of replacing the complete mapping ACK CH 300 of the distributed frequency division multiplexing of use (FDM) of execution mode according to another.Fig. 5 shows is particularly from an OFDM symbol of the subcarrier of subcarrier 1 to 6 (560), subcarrier 95 to 100 (560) and subcarrier 500 to 505 (570) from outside frequency spectrum.ACKCH 300 can be mapped to the symbol at subcarrier 1 (502), subcarrier 95 (504), subcarrier 500 (506) and subcarrier 595 (not shown) places.
As another replacement, ACKCH 300 can be mapped to integer amount is shone upon in permission in an OFDM symbol down link or uplink scheduling grant channel (DSGCH or USGCH).This can save extra expense.
Replacedly, the modulation of the higher order such as BPSK or QPSK can be used to generate the modulated symbol that will use in down link, represents the TPC information with ACK/NACK information.Described symbol can be transmitted by the repeated encoding that is used for TPC and ACK/NACK transmission.This can work as and uses application when multiplexing with other control channels of downlink control channel that frequency division multiplexing (FDM) will carry TPC and ACK/NACK.
Fig. 6 is the mapping according to the ACKCH 600 of the use of another kind of execution mode distributed mixing FDM/ code division multiplexing (CDM).ACKCH 600 can occupy K and distribute and equidistant RE, and is similar to the mapping of ACKCH 300 in Fig. 3.In addition, the control character as the ACKCH sign map can be expanded (spread) by constant amplitude zero auto-correlation (CAZAC) sequence in identical OFDM symbol.As shown in Figure 6, first symbol 602 of ACKCH 600 can with S
1604 (length is first chip/symbol of the sequence S of K) are multiplied each other.K the symbol 606 of ACKCH 600 can with S
(k-1)608 (k chip/symbols of sequence S) multiply each other.Last symbol X of ACKCH 600
K610 can with S
k612 (K chip/symbols of sequence S) multiply each other.
If all subcarriers in the OFDM symbol add up to N, and the quantity of the RE in identical OFDM symbol is M (M≤K), then the CAZAC sequence of expanding on M RE can or be the CAZAC sequence with cyclic shift of sequence length M, perhaps is the multinomial minute solution sequence of cyclic shift with long CAZAC sequence of length N.In the latter case, multinomial factoring is N/M, and this has hinted that multinomial minute solution sequence has length M.
Similar to the mapping that shows among Fig. 3, ACKCH 600 can be mapped on first three (3) individual symbol.The channel Mapping OFDM symbol front or the earliest in the TTI is helped to keep the HARQ stand-by period for the unanimity of all WTRU.In addition, the CAZAC sequence can be used as and has the sequence spreading that length equals the sequence spreading of prime number (prime number), means that M or K may be prime numbers.
Replacedly, when sequence spreading has the length of non-prime number, can utilize with the difference of this sequence length relatively prime (co-prime) and carry out cyclic shift.When the mixing FDM/CDM that uses localization was multiplexing, the CAZAC sequence on each RB (the perhaps subclass of continuous subcarrier) can replace Adama (Hadamard) sequence to be used as sequence spreading.
Fig. 7 is the example mappings of ACKCH 700 of mixing FDM/CDM that has the RB 702,704 of two localizations according to the use of replacing execution mode.ACKCH 700 can be mapped to the RB of several localizations.Mapping can be discontinuously and equidistantly across all subcarriers.As shown in Figure 7, ACKCH 700 is mapped to RBx 702 and RBy 704, and the distance of wherein each is half of bandwidth of cell.The quadrature spread sequence is used in each RB (702,704) that is used by ACKCH 700.Sequence can be CAZAC sequence or another orthogonal sequence, for example Adama.
Mapped control character as the ACKCH symbol can be expanded by constant amplitude zero auto-correlation (CAZAC) sequence in identical OFDM symbol.As shown in Figure 7, the ACKCH 700 that is mapped on the RBx 702 can pass through sequence S
1708 and be expanded, and the ACKCH 700 that is mapped to RBy 704 can pass through S
2712 are expanded.
Replacedly, be used to represent ACK/NACK if having the CAZAC sequence of two different cyclic shifts, then the modulated CAZAC sequence of BPSK, QPSK or other higher order modulation can be used to the transmission of TPC and ACK/NACK.This can work as the downlink control channel that carries TPC and ACK/NACK and use CDM or mixes use when multiplexing of other control channels of FDM/CDM.
Carry the time and the frequency location of the downlink control channel such as uplink scheduling grant channel (USGCH) and downlink scheduling grant channel (DSGCH) of up link or downlink scheduling License Info, for example, can implicitly be indicated.For the WTRU that receives USGCH and DSGCH at down link, can monitor one group of control channel candidate and detect which channel by checking CRC and carried its control information.If down link ACKCH uses based on CDM or mixes the multiplexing of FDM/CDM, the orthogonal sequence such as the CAZAC sequence for example can be used to carry implicit information so that WTRU can monitor one group of control channel candidate who reduces.
For example, if two ACKCH are mapped in the identical time-frequency resources, and use the CAZAC sequence to separate them, then the CAZAC sequence can be supported nearly four orthogonal cyclic shifts sequences when being mapped to predefined time-frequency resources.For each ACKCH, two cyclic shifts can be used to carry 1 bit information about the position of USGCH and DSGCH.If WTRU is signaled by higher level and monitors one group of K control channel candidate, then WTRU can use described 1 bit information to determine that USGCH or DSGCH are carried in preceding half set of control channel candidate or half set in back.This allows WTRU to get rid of the control channel candidate of half and need not search for.WTRU can save the possibility that processing time and false Cyclic Redundancy Check pass through and may be reduced.
In another embodiment, when using uplink multiuser MIMO (MU-MIMO), two or more WTRU may take identical block of uplink resources.The index of up link shared data channel and the predefined mapping one to one of carrying between the index of downlink physical resource of ACK/NACK feedback can not be distinguished two WTRU.Yet, as mentioned above, can use CDM to carry out multiplexing and expand by different orthogonal sequences to the downlink control channel of the ACK/NACK that carries the WTRU that takies the same uplink Resource Block and TPC information.In this manner, these feedback channels are mutually orthogonal.
TPC can be transmitted as one (1) bit (upstream or downstream), two (2) bits (up, descending or maintenance) or three (3) bits.The symbol that for example can be used to generate modulation such as the modulation of QPSK or higher order is used for representing TPC and ACK/NACK information to make in down link.Described symbol can be transmitted by the repeated encoding of the transmission that is used for TPC and ACK/NACK.This can work as when using frequency division multiplexing (FDM) to come the downlink control channel of multiplexing TPC of carrying and ACK/NACK and other control channels and uses.
Replacedly, having four different CAZAC sequences that circulate skew can be used to represent ACK/NACK to add one (1) bit TPC.For the TPC that has more than one (1) bit, perhaps more circulation skew can be used or can be used to indicate TPC and ACK/NACK information by the BPSK (or QPSK) of the CAZAC sequence modulation with four different circulation skews.
In another embodiment, for the WTRU of continuous dispatching, can use the implicit expression mapping to transmit TPC separately to uplink shared channel.
When not using up link MU-MIMO, different WTRU can take different block of uplink resources.Can use the index of up link shared data channel and carry predefined mapping one to one between the index of physical resource of the TPC information that is used for uplink data transmission.WTRUID can be carried by implicit expression together with TPC information.WTRU can receive TPC information and any additional side information of not decoding.
Embodiment
1. one kind is used for from the method for wireless transmission receiving element (WTRU) transmitting feedback information, and this method comprises carries out multiplexing with uplink shared channel to described feedback information.
2. according to embodiment 1 described method, this method also comprises described feedback information is mapped to OFDM (OFDM) symbol.
3. according to embodiment 1 or 2 described methods, described transmission of feedback information is arrived e Node B (eNB).
4. according to embodiment 2 or 3 described methods, this method also comprises by using distributed frequency division multiplexing (FDM) to carry out multiplexing with uplink shared channel to described feedback information.
5. according to the described method of arbitrary embodiment among the embodiment 2-4, this method also comprises described feedback information is mapped to first OFDM (OFDM) symbol.
6. according to the described method of arbitrary embodiment among the embodiment 2-5, this method comprises that also the feedback information that will be shone upon equidistantly is distributed on the transmission bandwidth.
7. according to the described method of arbitrary embodiment among the embodiment 1-6, wherein said feedback information comprises through-put power control (TPC) signal.
8. according to the described method of arbitrary embodiment among the embodiment 1-6, wherein said feedback information comprises replys/non-replying (ACK/NACK) signal.
9. according to the described method of arbitrary embodiment among the embodiment 2-8, this method also comprises: come with described uplink shared channel described feedback information to be carried out multiplexing by using mixed distribution formula frequency division multiplexing (FDM)/code division multiplexing (CDM) scheme, described feedback information is mapped at least two local radios carries; And described feedback information and quadrature spread sequence multiplied each other.
10. according to embodiment 9 described methods, wherein said orthogonal sequence is the CAZAC sequence.
11. according to embodiment 9 described methods, wherein said orthogonal sequence is a hadamard sequence.
12. one kind is used for feedback channel is transferred to the method for the wireless transmission receiving element (WTRU) of continuous dispatching from the e Node B, this method comprises described feedback channel and control channel multiplexing.
13. according to embodiment 12 described methods, this method comprises that also the channel that will be re-used is assigned at least one resource element (RE).
14. according to embodiment 12 or 13 described methods, this method comprises that also the channel Mapping that will be re-used is at least one OFDM (OFDM) symbol.
15. according to the described method of arbitrary embodiment among the embodiment 12-14, wherein said feedback channel comprises replys (ACK/NACK) channel (ACKCH).
16. according to the described method of arbitrary embodiment among the embodiment 12-14, wherein said feedback channel comprises through-put power control channel (TPCCH).
17. according to the described method of arbitrary embodiment among the embodiment 12-14, wherein said feedback channel comprises the channel that comprises ACK/NACK and TPC information channel (ATCH).
18. according to the described method of arbitrary embodiment among the embodiment 12-17, this method also comprises: the downlink scheduling permission that transmission is re-used, and the position of indicating downlink link scheduling grant channel in resource grid implicitly.
A 19. wireless transmission receiving element (WTRU), this WTRU comprises: processor, this processor is configured to uplink shared channel a plurality of feedback informations be carried out multiplexing, and the feedback information that is re-used is mapped to OFDM (OFDM) symbol.
20. according to embodiment 19 described WTRU, this WTRU also comprises transmitter, this transmitter is configured to transmit the feedback information that is re-used to e Node B (eNB).
21. according to embodiment 19 or 20 described WTRU, this WTRU also comprises processor, this processor is configured to by using distributed frequency division multiplexing (FDM) with uplink shared channel described feedback information to carry out multiplexing described feedback information is mapped to first OFDM (OFDM) symbol; And the feedback information that is shone upon equidistantly is distributed on the transmission bandwidth.
22. according to the described WTRU of arbitrary embodiment among the embodiment 19-21, wherein said feedback information comprises through-put power control (TPC) signal.
23. according to the described WTRU of arbitrary embodiment among the embodiment 19-21, wherein said feedback information comprises replys/non-replying (ACK/NACK) signal.
24. according to the described WTRU of arbitrary embodiment among the embodiment 19-24, this WTRU also comprises processor, and this processor is configured to by using mixed distribution formula frequency division multiplexing (FDM)/code division multiplexing (CDM) scheme to carry out multiplexing with described uplink shared channel to described feedback information; Described feedback information is mapped at least two local radio carryings; And described feedback information and quadrature spread sequence multiplied each other.
25. according to embodiment 24 described WTRU, wherein said orthogonal sequence is the CAZAC sequence.
26. according to embodiment 24 described WTRU, wherein said orthogonal sequence is a hadamard sequence.
Though feature and element are described with specific combination, each feature or element can be under the situation that does not have other features and element use separately, or with or with under the various situations that other features and element combine do not use.Described method or flow chart can be implemented in computer program, software or the firmware carried out by all-purpose computer or processor, and wherein said computer program, software or firmware are to be included in the computer-readable recording medium in tangible mode.The light medium that comprises magnetizing mediums, magnet-optical medium and the CD-ROM video disc of read-only memory (ROM), random-access memory (ram), register, buffer storage, semiconductor memory apparatus, internal hard drive and moveable magnetic disc and so on and digital versatile disc (DVD) and so on about the example of computer-readable recording medium.
For instance, appropriate processor comprises: general processor, application specific processor, conventional processors, digital signal processor (DSP), a plurality of microprocessor, the one or more microprocessors that are associated with the DSP core, controller, microcontroller, application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) circuit, any integrated circuit (IC) and/or state machine.
The processor that is associated with software can be used to realize a radio frequency transceiver, so that used in wireless transmission receiving element (WTRU), subscriber equipment (UE), terminal, base station, radio network controller (RNC) or any host computer.WTRU can be used in combination with the module that adopts hardware and/or form of software to implement, for example camera, camara module, video telephone, speaker-phone, vibratory equipment, loud speaker, microphone, TV transceiver, Earphone with microphone, keyboard, bluetooth
Module, frequency modulation (FM) radio-cell, LCD (LCD) display unit, Organic Light Emitting Diode (OLED) display unit, digital music player, media player, video game machine module, explorer and/or any wireless lan (wlan) module.
Claims (19)
1. one kind is used for from the method for wireless transmission receiving element (WTRU) transmitting feedback information, and this method comprises:
Carry out multiplexing with uplink shared channel to described feedback information;
Described feedback information is mapped to OFDM (OFDM) symbol; And
Described transmission of feedback information is arrived e Node B (eNB).
2. method according to claim 1, this method also comprises:
By using distributed frequency division multiplexing (FDM) to come to carry out multiplexing to described feedback information with described uplink shared channel;
Described feedback information is mapped to first OFDM (OFDM) symbol; And
The feedback information that is shone upon equidistantly is distributed on the transmission bandwidth.
3. method according to claim 1, wherein said feedback information comprise through-put power control (TPC) signal.
4. method according to claim 1, wherein said feedback information comprise replys/non-replying (ACK/NACK) signal.
5. method according to claim 1, this method also comprises:
Come to carry out multiplexing to described feedback information by using mixed distribution formula frequency division multiplexing (FDM)/code division multiplexing (CDM) scheme with described uplink shared channel;
Described feedback information is mapped at least two local radio carryings; And
Described feedback information and quadrature spread sequence are multiplied each other.
6. method according to claim 5, wherein said orthogonal sequence are the CAZAC sequences.
7. method according to claim 5, wherein said orthogonal sequence is a hadamard sequence.
8. one kind is used for feedback channel is transferred to the method for the wireless transmission receiving element (WTRU) of continuous dispatching from the e Node B, and this method comprises:
Carry out described feedback channel and control channel multiplexing;
The channel that is re-used is assigned at least one resource element (RE); And
The channel Mapping that is re-used is arrived at least one OFDM (OFDM) symbol.
9. method according to claim 8, wherein said feedback channel comprise replys (ACK/NACK) channel (ACKCH).
10. method according to claim 8, wherein said feedback channel comprise through-put power control channel (TPCCH).
11. method according to claim 8, wherein said feedback channel comprise the channel that comprises ACK/NACK and TPC information channel (ATCH).
12. method according to claim 8, this method also comprises:
The downlink scheduling permission that transmission is re-used; And
The position of indicating downlink link scheduling grant channel in resource grid implicitly.
13. a wireless transmission receiving element (WTRU), this WTRU comprises:
Processor is configured to uplink shared channel a plurality of feedback informations be carried out multiplexing, and the feedback information that is re-used is mapped to OFDM (OFDM) symbol; And
Transmitter, the transmission of feedback information that is configured to be re-used is to e Node B (eNB).
14. WTRU according to claim 13, this WTRU also comprises: processor is configured to:
By using distributed frequency division multiplexing (FDM) to come to carry out multiplexing to described feedback information with uplink shared channel;
Described feedback information is mapped to first OFDM (OFDM) symbol; And
The feedback information that is shone upon equidistantly is distributed on the transmission bandwidth.
15. WTRU according to claim 13, wherein said feedback information comprise through-put power control (TPC) signal.
16. comprising, WTRU according to claim 13, wherein said feedback information reply/non-replying (ACK/NACK) signal.
17. WTRU according to claim 13, this WTRU also comprises processor, and this processor is configured to:
Come to carry out multiplexing to described feedback information by using mixed distribution formula frequency division multiplexing (FDM)/code division multiplexing (CDM) scheme with described uplink shared channel;
Described feedback information is mapped at least two local radio carryings; And
Described feedback information and quadrature spread sequence are multiplied each other.
18. WTRU according to claim 17, wherein said orthogonal sequence are the CAZAC sequences.
19. WTRU according to claim 17, wherein said orthogonal sequence is a hadamard sequence.
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| US89470907P | 2007-03-14 | 2007-03-14 | |
| US60/894,709 | 2007-03-14 | ||
| US60/895,470 | 2007-03-18 |
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| CN103026770A (en) * | 2010-08-13 | 2013-04-03 | 华为技术有限公司 | Arrangement and method for improving HARQ feedback in telecommunication systems |
| GB2496646A (en) * | 2011-11-17 | 2013-05-22 | Renesas Mobile Corp | Mapping a feedback (ACK/NACK) radio resource |
| CN105049149A (en) * | 2010-07-07 | 2015-11-11 | Lg电子株式会社 | Method and apparatus for transmitting control information in a wireless communication system |
| CN105743627A (en) * | 2010-04-05 | 2016-07-06 | Lg电子株式会社 | Method and apparatus for transmitting control information in wireless communication system |
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