Uplink control signaling transmission method and user equipment
A technology for user equipment and control signaling, applied in the field of digital communication, can solve problems such as detection errors, reduce system throughput, and fail to obtain ACK/NACK response information, and achieve the effect of avoiding retransmission and improving throughput
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Example Embodiment
[0081] Example 1
[0082] In this embodiment, the number of downlink component carriers configured by the network side for the UE is M, and the grouping information of the M downlink component carriers agreed in advance between the network side and the UE is: the UE needs to divide the M downlink component carriers into two Groups, one group includes the first L downlink component carriers, and the other group includes ML downlink component carriers (L Figure 4 As shown, including the following steps:
[0083] Step 401: The UE divides the M downlink component carriers for which response messages need to be fed back into two groups according to the grouping information, where one group includes the first L downlink component carriers, and the other group includes the remaining M-L downlink component carriers;
[0084] Step 402: The UE determines the response corresponding to each downlink component carrier group;
[0085] In this step, the UE determines the response corresponding to th...
Example Embodiment
[0115] Example 2
[0116] When the base station introduces a downlink configuration indicator (DAI: Downlink Assignment Indicator) control field in the PDCCH corresponding to each PDSCH, it is used to indicate the number of downlink component carriers scheduled for PDSCH transmission to the UE in the current subframe, and its value is Denoted as V DAI DL , Where V DAI DL When it includes the number of downlink component carriers transmitted by PDSCH detected by PDCCH and the number of downlink component carriers transmitted by PDSCH without corresponding PDCCH, the UE transmits uplink control signaling process as follows: Picture 9 As shown, including the following steps:
[0117] Step 901: The UE first detects the number of downlink component carriers transmitted by the PDSCH according to the PDCCH, which is marked as U in this embodiment DAI , And detect the number of downlink component carriers transmitted by PDSCH without PDCCH, which is marked as N in this embodiment SPS...
Example Embodiment
[0147] Example 3
[0148] When the base station introduces a downlink configuration indicator control field in the corresponding PDCCH of each PDSCH, the control field includes two parts: the first part is used to indicate the number of downlink component carriers scheduled for PDSCH transmission to the UE in the current subframe. Take the value as V DAI DL , Where V DAI DL Including the number of downlink component carriers for PDSCH transmission detected by PDCCH and the number of downlink component carriers for PDSCH transmission without corresponding PDCCH; the second part is used to indicate the cumulative downlink of PDSCH transmission that has been scheduled to the UE by the current component carrier The value of the number of component carriers modulo 2 and its value is recorded as V DAI DLcounter , Where the cumulative value starts from 0, when the UE detects the PDCCH, it is detected in sequence according to a certain frequency. At this time, the UE transmits the...
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