TWM314881U - Scheduling channel quality indicator and acknowledgement/negative acknowledgement feedback - Google Patents

Description

M314881 VIII. New Description: [New Technical Field] The present invention relates to a wireless communication system, and more particularly to an uplink (UL) 'single carrier for Evolved Universal Terrestrial Radio Access (E-UTRA) Scheduled and multiplexed channel quality indicator (CQI) and positive acknowledgement/negative acknowledgement (ACK/NACK) feedback in crossover multiple access (SC-FDMA).曰 [Prior Art] Currently, both 3GPP and 3 Chat 2 are considering long-term evolution projects. In these projects, the evolution of the radio interface and network architecture is required. Currently, SC_FDMA is already used for the uplink of E-UTRA, and Orthogonal Frequency Division Multiple Access (OFDM) is used for the downlink. The Node B (Node B) uses the downlink (CQ1) measured by the User Equipment (UE) to schedule the downlink shared data channel. After decoding the downlink resource transmission, the UE needs to send feedback (e.g., ^ ACK/NACK) to the Node B to inform the Node B whether the corresponding HARQ transmission is successful. The uplink transmission format information and the HARQ information are referred to as uplink data related control information. On the other hand, CQI and ACK./NACK for downlink data transmission are referred to as uplink data irrelevant control. In the E-UTRA system, one problem that needs to be solved is how to report the downlink and ack/nack reports via the melon channel.

Cheng. For convenience, the UL channel transmitting the CQI is referred to as UL CQICH' and the muscle channel transmitting the ACK/NACK is referred to as ul ACKCH. In the prior art High Speed Downlink Packet Access (HSDPA), the M314881 allocates a dedicated low data rate channel for the UE to report the cQI along with the ACK/NACK to the Node B 'and the dedicated channel is always the UE Only pregnant. However, if a dedicated channel is used to transmit cqi and ACK/NACK, the number of UEs that can be simultaneously supported will be limited to 0. [New content]

A method for transmitting feedback in a wireless communication system, the method comprising: scheduling a contention-free UL channel; and transmitting feedback on the scheduled UL channel. The reflection includes the channel quality indicator of the downlink data received by the lin and the ACK/NACK. Moreover, for efficient transmission, the feedback can be multiplexed in a variety of ways. The scheduling procedure may include: scheduling periodic feedback reports, determining the location of the UL channel for feedback reporting, and signaling the location of the UL channel to the top signal and the feedback reporting period. • The gas work plan 2 selection is based on at least one of the following: • No downlink data is transmitted to the UE in the previous subframe, 3 is not transmitted in the current subframe. ULf, and = No: Q: Bit 70 is configured to be transmitted in the current subframe. Different scenarios are disclosed based on a combination of the foregoing determinations. In these schemes, each scheme can be used to select the user's equipment (the UE is selected by the implementer for the wireless communication system and the township feedback report. And the NodeBiUE includes; the first transmitter communicating with the first processor/receiving the first antenna connected to the first transmitter/receiver; and the first processor M314881 and the multiplexer a feedback generator for communicating, the feedback generator for generating feedback based on the received downlink data; and a first multiplexer in communication with the first processor, the first multiplexer for generating feedback from the feedback Feedback is multiplexed with other uplink data. The N-B includes a second processor; a buffer in communication with the second processor, the buffer storing data to be transmitted to the UE; and a second transmitter/receiver communicating with the second processor a second antenna coupled to the second transmitter/receiver; a second multiplexer in communication with the second processor; and a scheduler in communication with the second processor and the first transmitter/receiver The scheduler is for scheduling an uplink feedback channel; and a transmitting device for communicating with the scheduler, the mapping device for mapping resource blocks from the downlink communication to an uplink feedback channel location. [Embodiment] $Home Equipment (UE) "includes but not limited to == early jWTRU", mobile station, fixed or mobile use two telephone, personal digital assistant (pda), electric fine or 疋 operate in wireless environment The term "base station (BS)" is used to slap Hong L, his device. The following is a reference to a 丨 - 仏 仏 ... including but not limited to Node Β, site control, access point or wireless ring ULCCHCH The short row of m is the other side-by-side device. ^This is a total of Xiaotongxin in the unified financial SC_FDMA to transmit CQJ based on the useless system. CQICH system. First, #彳图 shows - for row, , Whether there is any data for the UE in the buffer of N〇de B (step 1〇2). If there is no M314881 in the buffer, the method will wait in step 1〇2 until the buffer There is information. When there is no data for the UE in the buffer of the standby Node B, the uplink CQICH does not need to be scheduled. If there is data in the buffer of the Node B, the CQI report is advertised in the busy side of the secondary message ( Step 1〇4). As described in more detail in connection with Figures 3 and 4, in accordance with the implementer Any value of N may be equal to or greater than 1 and not more than 5 stupid or 10 - the value of the mobility values of the UE .N

: The higher the mobility of the associated 'UE', the lower the value of N should be. The Node B schedules the CQI report and the UL CQICH before the downlink (DL) data transmission for the UE. The UL CQICH is configured to transmit once every n subframes. The location of the UL CQICH (by time and frequency) should be known to the NodeB and to the UE. Predefined time and frequency hopping patterns can be applied

The ranked ULCQICH location (steps 1〇6). An exemplary way to learn ulcqICH-location is when the Node B schedules a CQI report.

The NodeB sends a signal to the UE to explicitly inform the ULCQICH location. Predetermined

The time and frequency hopping pattern can be applied to the scheduled UL CQICH position' to achieve better time and frequency diversity. Since N〇(je b and UE know the UL CQICH location, it is not necessary to transmit the UE ID in one or more resource blocks on the UL CQICH, the CQI bit of the UE can adopt several feasible methods with ACK/NACK Information, and/or UL data related control information and user data of the same UE, and/or other ue UL control information and user data are multiplexed. M314881 Receiver (ie Node B) requires UL pilot to decode ul CQICH Therefore, the pilot pilot for UL CQICH is also required to allocate ULCQICH. If a frequency-based multiplex (fdm)-based UL pilot is used, then 1; 1^ pilot position should be allocated (in the frequency domain) If you are using a Chisa-based Duplex (CDM)-based UL pilot, you should assign the UL pilot to % shift and the frequency domain position (optional). An example based on pilot-based is based on constant amplitude zero. The pilot of the autocorrelation (CAZAC) sequence, the information on the UL pilot for the UL CQICH is explicitly signaled together with the UL Cqich, or the ULCQICH location within one or more resource blocks (in Time domain and frequency domain) with UL for ULcqich A pre-defined mapping can also be used between frequencies. Therefore, there is no overhead in the transmission. For more flexibility, the predefined mapping can be reconfigured via broadcast signals or control channels. After receiving the CQI feedback from the UE, the DL data transmission scheduled on the DL shared data channel will start to be scheduled as in 6. The schedule mode for the DL data transmission of the UE can be dynamically changed. Scheduling modes include decentralized, centralized, ΜΙΜΟ (closed loop or open loop) and non-ΜΙΜΟ, and possible combinations of these modes. Different scheduling modes require different amounts of CQI feedback, such as the average C of the entire bandwidth ( ^, the best of the chunks <: φ, CQI supporting closed loop or open loop 等等, etc. Therefore, different ULCQICH corresponding to different feedback quantities should be defined and allocated accordingly / Schedule. When the Node B switches between different scheduling modes, the UL CQICH can be dynamically reconfigured during the packet call. Reconfigure the mode to M314881 centralized In the case of decentralized, decentralized, etc., for example, a broadcast channel can be used to configure/reconfigure at this time. When each cell public mode or the user uses the same mode in the cell, the above solution can be implemented. But 'when using a hybrid solution, that is to say

If each UE "connected" has a different mode in cell το, then some shared control channels should be used to dynamically reconfigure the operation or scheduling mode. In this case _, information about the mode (1 to 3 bits) should be transmitted and carried in the shared control channel. In addition, reconfiguration can also be done in a slower manner via RRC signaling.

Scheduling will become more complicated when using hybrid mode with some UEs having a distributed mode, some UEs with a centralized mode, and some UEs with MIM0 mode. Therefore, you must use a scheduling algorithm to have an effect on the "mixed" situation. After the U L C QIC Η position is communicated to u E, it is determined whether all the data in the buffer of the NodeB is successfully transmitted to the UE (step 1 〇 8). _ If all the data has not been successfully transferred, repeat steps 1〇8 until all the data has been successfully transferred. Once all the data for the UE in the buffer of N〇de B is successfully transmitted, N〇deB releases (deall〇cate) UL CQICH (step 11〇), and method 1〇〇 repeats observation by inspection. Whether there is data in the buffer of the NodeB (step 1〇2).

The UL ACKCH preferably' shared channel will be used to transmit ACK/NACK feedback for DL data transmission in UL SC-FDMA in a contention free manner. Figure 2 shows a method 200 for scheduling ul ACKCH. M314881 determines whether there is a DL data transmission for Xian (step 2〇2). If there is another DL transmission for the UE, the method 200 will wait in step 202 until the DL data to be transmitted to the UE. When there is no DL data transmission for the UE, there is no need to schedule UL ACKCH at this time. If there is a DL data to be transmitted to the UE, the UL ACKCH is scheduled after the DL data is transmitted (step 204). A fixed 时序 timing/PCT sub-frame is required between each DL data transmission scheduled by N〇deB and the corresponding ACK/NACK feedback. And in the preferred embodiment, M = 1. Acquiring the ULACKCH location (step 206) and transmitting a signal with the ULACKCH location to the UE (step 2〇8), then the method will

It will end (step 210). For Node B and UE, the UL ACKCH location (in the time and frequency domains) should be known. There are two ways to get the sig UL ACKCH position. The first is via explicit signaling. In this case, once the UL ACKCH location is acquired, the Node B will send the ULACKCH location directly to the _ UE in each scheduled DL data transmission ( That is, step 208 is followed by step 206). The second method of obtaining the UL ACKCH location is by mapping the resource blocks used for DL data transmission to the UL ACKCH location (step 212). This mapping should then be transmitted to the UE via the Broadcast Channel (BCH). Alternatively, a predefined time and frequency hopping pattern can be applied to the mapping as well (step 212, as indicated by the dashed circle). This allows for better time and frequency diversity for ULACKCH. If DL data transmission uses K resource blocks (for all Ks greater than 1), then the ULACKCH location can be mapped in two ways: 11 M314881 1 · UL ACKCH uses the kth (l$k) used for the DL data transmission $K) The location of the resource block map. 2 · IJL· ACKCH uses the permutation of the locations mapped by the κ resource blocks. For example, the three resource blocks can be used for dl data transmission. For the first transmission, the ACK/NACK is transmitted at the location mapped by the second resource block. For the second (re)transmission, the ACK/NACK is transmitted at the location mapped by the third resource block. For the third (re)transmission, the ACK/NACK is transmitted at the location mapped by the first resource block, and so on. Since both the NodeB and the UE know the ULACKCH location, it is not necessary to transmit the UE ID on the UL ACKCH. Within one or more resource blocks, the ACK/NACK information of the UE may use several feasible methods to control information related to the CQI bit, and/or the UL data of the same UE, as well as user data, and/or other ue UL. Control information and user data for multiplex. The receiver (ie, NodeB) requires UL pilots to decode the ULACKCH. Therefore, the UL pilot used for ULACKCH is also required to allocate a ULACKCH. If an FDM-based UL pilot is used, then the UL pilot position (in the frequency domain) should be allocated. If a CDM-based UL pilot (e.g., a CAZAC-based pilot) is used, the UL pilot cyclic shift and the frequency domain position (optional) should be allocated. In a preferred embodiment, a predefined mapping between ULACKCH locations (on the time domain and frequency domain) within a resource block is used, and the UL pilot is used for the UL ACKCH. Therefore, this is 12 M314881 there is no transmission overhead. ΰ Α Α 不 控制 控制 控制 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳 较佳Depending on whether the value of Ν is greater than 1, different multiplexes of information can be independently controlled using UL. • tiHQI is configured to be multiplexed in each sub-frame transmission and feed, and the third picture shows when C (3I report period N is equal to one sub-frame; the method of Xigong is 300. First determine whether Transmitting the ^DL data to the UE in the previous subframe (step 3〇2). If there is no dl in the previous subframe, transmitting to the UE, it is determined whether the UL data is transmitted to the uE in the current subframe ( Step 304) If there is no UL data transmitted to the UE in the current subframe, it should be m (step 306). In the example i, the CQi bit is transmitted on the pre:: LCQICH. The predefined uLC_ Can be melon: "1 in any resource block, even in the resource block for other UE W UL Bellow transmission. = Data (steps apply multiplex case 2) In the multiplexed two mutually exclusive selection example 2, its pre-defined UL CQICH is transmitted. In the 2 ' 'the postal unit is in the fee resource; however, the selection is not the same as the selection 2. The Α2Α has more pilots. In the selection 2Β, the CQI bit is in the η; ^E ^ ^ t.4 image, the CQI bit and the 13 M314881 one UE UL data related control bit User data is multiplexed. Compared to selecting 2A, there is no pilot overhead for selecting 2B; however, the data rate of the UE will be reduced. Since UL shared data transmission does not always exist, it is still necessary to allocate a predefined UL CQICH. Unless the Node B allocates other UEs to transmit on these resources, the resources of the predefined UL cqich will be wasted, and the allocation will make the scheduling of the NodeB more complicated. Alternatively, the Node B can pre-define the UL CqICH. The resources are allocated to other UEs for transmission. If there is DL data transmitted to the UE in the previous subframe (step 302), it is determined whether there is a transmission to 1 in the current subframe: 1; (Step 310) If the UL data of 1; £: is not transmitted in the current subframe, then Example 3 is applied (Step 312). In Example 3, there are three mutually exclusive choices. 〃 In the selection 3A, The ACK/NACK for DL data transmission is transmitted with the CQI bit on the pre-defined UL CQICH. This option saves pilot overhead compared to selecting 3c. Since UL CQICH is always available, there is no necessary The UL ACKCH is allocated separately. However, the predefined UL CQICH must be configured large enough to transmit ACK/NACK information. When no ACK/NACK is transmitted, resources will be wasted. In the selection 3B, CQI information and ACK/ The NACK is transmitted on the UL ACKCH. The UL ACKCH can be located on any resource block configured by the Node B, and even multiplexed in the resource block for the UL data transmission of other UEs. Compared to the choice of 3C, the choice of 3B saves the pilot opening M314881 pin. If the DL shared control channel (DL-SCCH) is not decoded correctly, ACK/NACK will not be transmitted (because the UE does not know if there is a DL data transmission in the previous subframe). In this case, the Node B considers that the CQI bit is transmitted on the predefined UL ACKCH along with the ACK/NACK. However, ACK/NACK is not transmitted, and this will cause a problem. However, since the ACKCH is not always available, a predefined UL CQICH still needs to be allocated. Unless the Node B allocates other UEs to transmit on these resources, the resources of the predefined UL CQICH will be wasted, and this allocation will make the scheduling of the Node B more complicated. Alternatively, the Node B may allocate resources of the predefined UL CQICH to other UEs for transmission. In the selection 3C, ACK/NACK and CQI are transmitted separately. That is, the ACK/NACK is transmitted on the UL ACKCH, and the CQI bit is transmitted on the predefined UL CQICH. For option 3c, no resources are wasted on the UL CQICH; however, the pilot overhead will be more than the choice of 3 in and 3B. If there is UL data transmitted to the UE in the destination subframe (step 310), then example 4 is applied (step 314). In Example 4, there are four mutually exclusive choices for multiplexing. In option 4, the ack/Nack and cqi bits are transmitted together in the resource block scheduled for the UL share of the same_UE: data transmission. In this way, the ACK/NACK and CQI bits are compared with the UL data related control bits and user data of the same UE: Selecting 4A has no pilot overhead; however, the UE's UL # material rate will decrease. Since the UL shared data transmission is not always fine, it is still necessary to allocate a pre-defined 15 (M314881 first defined ULCQICH (and possibly UL ACKCH). Unless the Node B allocates other UEs to transmit on these resources, the pre-defined UL The resources of the CQICH (and ULACKCH, if any) will be wasted, and this allocation will make the scheduling of the Node B more complicated. Alternatively, the Node B can allocate resources of the predefined ULCQICH (and ULACKCH, if any). For other UEs, for transmission. In Option 4B, the ACK/NACK for DL data transmission is transmitted with the CQI bit on the predefined UL CQICH. Selecting 4B has fewer pilots than selecting 4D. Overhead, but selecting 4B has more pilot overhead than selecting 4A. Since ul CQICH is always available, there is no need to allocate UL ACKCH here, and the UE's UL data rate will not decrease. The pre-defined ul CQICH must be configured large enough to transmit ACK/NACK information. When no ACK/NACK is transmitted, resources are wasted. In Select 4C, CQI information is along with ACK/NACK information. The first defined UL ACKCH is transmitted. Compared with selecting 4D, selecting 4C has lower overhead, but selecting 4C has higher pilot overhead than selecting 4A. The UE's UL data rate will not be reduced. The other defects of 4C are the same as those of Option 3B in Example 3. In Select 4D, ACK/NACK and CQI are transmitted separately. That is, ACK/NACK is transmitted on a predefined UL ACKCH, and The CQI bit is transmitted on the predefined ULCQICH. For selecting 4D, no resources are wasted on the UL CQICH and UL ACKCH. The UL data of the UE will not be reduced. However, compared with the selection of 4A, 4B and 4C, M314881 selects 4D to have higher pilot overhead. In addition, the 'UL resource request (called "scheduled information,") bit can be transmitted on the same-UE UL CQICH or UL ACKCH, or in the same-UE The UL shared data transmission is transmitted together in the resource blocks scheduled. Accordingly, the UL CQICH or UL ACKCH needs to be configured large enough to be compatible with the UL resource request bit. Or, in the same ue UL / Transfer the scheduled resource blocks with negative materials The number of uL resource request bits needs to be reserved. 'The _ 莲 差 差 差 差 差 差 每个 ^ ^ ^ ^ ^ ^ ^ ^ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Use the multiplex method to determine whether there is any D1 data transmitted to the UE in the cut subframe (step 4〇2). If there is no DL data transmitted to the UE in the previous subframe, it is determined whether or not there is a transmission to the UE (4) L ((4) 4〇4) in the current subframe. If there is another UL data transmitted to the UE in the current secondary message, it is determined whether or not the viewing element will be

Configured to be transmitted in the current subframe (steps). If the CQI bit is configured to be transmitted in the current subframe, then the example ^ is applied (step 408). In Example 1, the CQI bit is transmitted on a predefined ULCQICH. If the CQ:[bit is configured to be transmitted in the current subframe (step 406), the data unrelated control will not be transmitted 410) 〇 If there is UL data transmitted to the UE in the current subframe ( Step ^) 'determines whether the CQI bit is configured to be carried in the current subframe (step 412). If the CQI element is configured to be transmitted in the current subframe 17 M314881, then Example 2 is applied (step 414). In Example 2, two mutually exclusive choices for multiplexing are available. In option 2A, (: (^1 bit is transmitted on a predefined UL CQICH. Selecting 2A does not waste resources on UL CqICH; however, it requires more pilot overhead than selecting 2B. In 2B, the CQI bit is transmitted in the resource block scheduled for the UL shared data transmission of the same UE. In this way, the CQI bit is multiplexed with the UL data related control bit of the same UE and the user data. Selecting 2B has less pilot overhead than selecting 2A. However, the UL data rate of the UE will be reduced. Since UL shared data transmission does not always exist, a predefined ULCqICH still needs to be allocated. deB allocates other UEs to transmit on these resources, otherwise the negative source of the predefined UL CQICH will be wasted, and the allocation will make the schedule of N〇de B more complicated. Optionally, 'Node B can be pre- The defined ul CQICH: resources are allocated to other UEs for transmission. If the CQI bit is not configured to be transmitted in the current subframe (step 412), no data-independent control signaling will be transmitted (steps) 41〇). If in the previous If there is DL data transmitted to the UE in the frame (step 402), it is determined whether the UL data is transmitted to the UE in the current subframe (step 416). If no UL data is transmitted to the UE in the current subframe, Determining whether the CQI bit is configured to be transmitted in the current subframe (step 418). If the CQI bit is not configured to be transmitted in the current subframe, then Example 3 is applied (step 420). The ACK/NACK for DL data transmission shall be transmitted on the UL ACKCH. If the CQI bit is configured to be transmitted in the current subframe (step M314881 418), then Example 4 is applied (step 422). In 4, there is a triple exclusive selection for multiplexing. In option 4A, the ACK/NACK for dl data transmission is transmitted along with the CQI bit on a predefined UL. The selection 4A has a very low pilot overhead. However, the predefined UL CQICH must be configured large enough to transmit ack/NACK information. Resources will be wasted when ACK/NACK is not transmitted. UL LQICH is not always available when ACK/NACK needs to be transmitted. Therefore, it is still necessary to allocate a predefined UL·ACKCH at this time. Unless the NodeB allocates other UEs for uplink transmission on these resources, the resources of the predefined UL ACKCH will be wasted, and the allocation will make the scheduling of the Node B more complicated. Alternatively, the Node B may have a predefined UL. The CQICH (and UL ACKCH, if any) resources are allocated for transmission to other UEs. In Option 4B, CQI information is transmitted along with the ACK/NACK on a predefined UL ACKCH. Selecting 4B has a very low pilot overhead. If there is no positive read decoding DL-SCCH, then ACK/NACK will not be transmitted (because the UE does not know that there is a dl data transmission in the previous subframe). In this case, the Node B considers the CQI bit to be transmitted on the predefined UL ACKCH along with the AKC/NACK. However, ACK/NACK is not transmitted, and this will cause a problem. Since the ACKCH is not always available, a predefined UL CQICH still needs to be allocated. Unless the Node B allocates other UEs to transmit on these resources, the resources of the predefined UL CQICH will be wasted, and the allocation will make the scheduling of N〇de B more complicated. Alternatively, the Node B may allocate resources of a predefined UL CQICH to other UEs for transmission. M314881 In Select 4C, ACK/NACK and CQI are transmitted separately. That is, the ACK/NACK is transmitted on a predefined UL VIII (^::11, and the CQI bit is transmitted on a predefined ULCQICH. For the selection 4C, on the UL C (JICH or UL ACKCH) No resources are wasted; however, the selection of 4C has a higher pilot overhead than selecting 4A and 4B. If there is UL data transmitted to the UE in the current subframe (step 416), it is determined whether or not 〇:( The 31-bit is configured to be transmitted in the current subframe (step 424). If the CQI bit is configured to be transmitted in the current subframe, then Example 5 is applied (step 426). In Example 5, there is In multiplex 5, the ACK/NACK and CQI bits are transmitted in the resource block scheduled for the DL·shared data transmission of the same UE. In this way, ACK/NACK and The CQI bit is multiplexed with the UL data related control bits of the same UE and the user data. Compared with selecting 5B, 5C and 5D, the selection 5A has a smaller pilot overhead, but the UE's UL data rate will be reduced. Since UL·shared data transmission does not always exist, it is still necessary to allocate a predefined UL. CQICH (and possibly ULACKCH). Unless the Node B allocates other UEs to transmit on these resources, the resources of the predefined ULCQICH (and ACKCH, if any) will be wasted, and this allocation will make the Node B schedule more Complex. Alternatively, the Node B may allocate resources of a predefined ULCQICH (and ULACKCH, if any) to other UEs for transmission. In Option 5B, ACK/NACK and CQI bits for DL data transmission Together, transmitted on a predefined UL CQICH. Compared to selecting 5D phase 20 M314881, selecting 5B has lower pilot overhead. The UE's UL data rate will not be reduced. However, the predefined UL CQICH must be configured enough. Large to transmit ACK/NACK information. When no ACK/NACK is transmitted on the UL CQICH, resources will be wasted. Since UL CQICH is not always available when ACK/NACK needs to be transmitted, UL ACKCH still needs to be allocated. Unless the NodeB allocates other UEs to transmit on these resources, the resources of the predefined UL ACKCH will be wasted, and the allocation will make the scheduling of the Node B more complicated. Alternatively, the Node B can pre- The resources of the first defined UL ACKCH are allocated to other UEs for transmission. In the selection 5C, CQI information is transmitted on the UL ACKCH together with ACK/NACK. Compared with selecting 5D, selecting 5C saves pilot overhead. The UL data rate of the UE will not decrease. However, selecting 5C has more pilot overhead than selecting 5A. Furthermore, the other disadvantages of selecting 5c are the same as the disadvantage of selecting 4B in Example 4.

In selecting 5D, ACK/NACK and CQI are transmitted separately. That is, the ACK/NACK is transmitted on a predefined UL ACKCH, and the CQI bit is transmitted on a predefined ULCQICH. For choosing 5D

In terms of resources, no resources are wasted on UL CQICH and UL ACKCH. The UL data rate of the UE will not decrease. However, selecting 5D has more pilot overhead than selecting 5A, 5b, and 5C. If the CQI bit is not configured to be transmitted in the current subframe (step 424), then Example 6 is applied (step 428). In Example 6, two mutually exclusive choices are available for multiplexing. 21 M314881 In option 6A, the ACK/NACK information is transmitted in the resource block scheduled for the same UE's ul shared data transmission. In this way, the ACK/NACK information is multiplexed with the UL data related control information and the user data of the same UE. Selecting 6A has no pilot overhead; however, the UE's UL data rate will be reduced. Since UL shared data transmission does not always exist, UL ACKCH still needs to be allocated. Unless the NodeB allocates other UEs to transmit on these resources, the resources of the predefined UL ACKCH will be wasted, and the allocation will make the scheduling of the Node B more complicated. Alternatively, the Node B may allocate a predefined UL ACKCH resource to other UEs for transmission. In option 6B, ACK/NACK is transmitted on the UL ACKCH. For the selection of 6B, the UL data rate of the UE will not decrease. The resources of the UL ACKCH are also not wasted; however, the selection of 6B has more pilot overhead than the selection of 6A. In addition, the UL resource request (referred to as "scheduling information") bit may be transmitted on the ULCQICH or UL ACKCH of the same UE, or may also be in the resource block scheduled for the UL shared data transmission of the same UE. Transfer together. Accordingly, the ULCQICH or UL ACKCH needs to be configured to be large enough to accommodate the UL resource request bits. Alternatively, the number of ul resource request bits needs to be reserved in the resource block scheduled for the UL shared data transmission of the same ue. System Architecture Figure 5 is a block diagram of a system 500 for scheduling and multiplex CQI reporting and ACK/NACK reporting, including UE 502 and Node B 504. 22 M314881 The UE 502 includes a processor 510, a transmitter/receiver 512 in communication with the processor 510, and an antenna 514 coupled to the transmitter/receiver 512. The multiplexer 516 is in communication with the processor 510. Feedback generator 518 is in communication with processor 510 and multiplexer 516. The feedback generator 518 can provide CQI and ACK/NACK for the received DL data.

The Node B 504 includes a processor 520 and a buffer 522 that communicates with the processor 520. The buffer 522 holds the data to be transmitted to the UE 5〇2. Transmitter/receiver 524 is in communication with processor 520 and antenna 526 is coupled to transmitter/receiver 524. Multiplexer 528 is in communication with processor 52A and transmitter/receiver 524. The scheduler 53 is in communication with the processor 52A and the transmitter/receiver 524. The scheduler 53 is used to schedule CQI reports and ACK/NACK reports for the UE 502. Mapping device 532 is in communication with scheduler 530 and is used to map resource blocks used for DL data transmission to UL channel locations. The method or flow chart provided by the invention may be described in a tangible manner in a computer-readable storage by a generic line, although the invention is described in a specific combination of the touches of the invention, but each feature or component may It can be used alone without the other features and elements of the preferred embodiment, or in various forms in which T is combined with other hair and other components. By computer or processor

Optical media such as disk and digital versatile disc 23 M314881 (DVD). For example, suitable processors include: general purpose processors, special purpose processors, conventional processors, digital signal processors (DSPs), complex microprocessors, one or more microprocessors associated with the DSP core, control , microcontroller, dedicated integrated circuit (ASIC), field programmable gate array (FPGA) circuit, any integrated circuit and/or state machine. The processor associated with the software can be used to implement a radio frequency transceiver for use in a wireless transmit receive unit (WTRU), user equipment, terminal, base station, radio network controller, or any host computer. The WTRU may be used in conjunction with modules implemented in hardware and/or software, such as cameras, camera modules, video phones, speaker phones, vibration devices, speakers, microphones, television transceivers, hands-free headsets, keyboards, Bluetooth modules. Group, FM radio unit, liquid crystal display (LCD) display unit, organic light emitting diode (OLED) display unit, digital music player, media player, video game player module, internet browser and/or Or any wireless local area network (WLAN) module. BRIEF DESCRIPTION OF THE DRAWINGS [0009] The invention will be described in more detail in the following description of the preferred embodiments. , wherein: Figure 1 is a flow chart of a method for scheduling a report; Figure 2 is a flow chart of a method for scheduling an ACK/NACK report; Figure 3 is when sending in each subframe Flowchart of a method for multiplexing in feedback; Figure 4 is a flow chart of a method for multiplexing when transmitting CQI feedback at a frequency lower than each subframe; and Figure 5 is for scheduling Block diagram of the system for multiplex and CQI reporting and ACK/NACK reporting. [Main component symbol description] 500 system 514, 526 antenna ACK positive response CH channel CQI channel quality indicator DL downlink NodeB B node UE using user equipment UL uplink 25

Claims (1)

M314881 IX. Patent Application Range: 1 · A system for scheduling and multiplexing processing feedback reports in a wireless communication system, comprising: a user equipment comprising: a first processor; a first transmitter/receiver Communicating with the first processor; a first antenna coupled to the first transmitter/receiver; a feedback generator operative to communicate with the first processor and the first multiplexer, the feedback a generator for generating feedback based on the received downlink data; and a first multiplexer in communication with the first processor, the first multiplexer for communicating feedback information from the feedback generator to other Uplink data is multiplexed; and a Node B, comprising: a second processor; a buffer communicating with the second processor, the buffer for storing data to be sent to the user equipment; a second transmitter/receiver for communicating with the second processor; a second antenna coupled to the second transmitter/receiver; and a second multiplexer for performing with the second processor a scheduler, in communication with the second processor and the second transmitter/receiver, the scheduler for scheduling an uplink feedback channel; and a mapping device for performing with the scheduler In communication, the mapping device 26 M314881 is configured to map resource blocks from downlink communication to an uplink feedback channel location.