Downlink control information transmission method and device
A technology for controlling information and transmission methods, applied in the field of communication, to achieve the effect of low overhead
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Embodiment 1
[0031] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, figure 1 It is a block diagram of the hardware structure of a mobile terminal of a downlink control information transmission method according to an embodiment of the present invention, as shown in figure 1 As shown, the mobile terminal 10 may include one or more ( figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Optionally, the above-mentioned mobile terminal also A transmission device 106 for communication functions as well as input and output devices 108 may be included. Those of ordinary skill in the art can understand that, figure 1 The shown structure is only for illustratio...
Embodiment 2
[0249] The embodiment of the present invention also provides a downlink control information transmission method, image 3 It is a flow of a downlink control information transmission method according to an embodiment of the present invention Figure II ,Such as image 3 As shown, the process includes the following steps:
[0250] Step S302, when one downlink control information DCI schedules multiple transport block TBs, indicate the scheduled RV of the multiple TBs through the redundancy version RV signaling field in the DCI, or the RV of the multiple TBs is a fixed value;
[0251] Step S304, transmitting the DCI through a physical downlink control channel PDCCH.
[0252] Optionally, when the multi-TB includes a newly transmitted TB and a retransmitted TB, the RV of the newly transmitted TB is fixed, and the RV of the retransmitted TB is indicated according to the RV signaling field in the DCI; or,
[0253] When the multiple TBs only include newly transmitted TBs, the RVs o...
example 1
[0401] This embodiment is mainly used in a 4TB scheduling scenario when multi-TB scheduling is enhanced, with the purpose of reducing signaling overhead, implementing multi-TB scheduling, improving transmission efficiency, and reducing overhead. The feature is that when scheduling multiple TBs, newly transmitted TBs and retransmitted TBs cannot be mixed, and the maximum number of TBs is equal to the number of processes. And the feedback is multi-bit feedback, that is, 4 TB scheduling, then 4-bit feedback is performed.
[0402] According to its characteristics, during 4TB transmission, no matter how many uplink resources are used to feed back 4 TB, the feedback information is 4 bits. Furthermore, each TB cannot be transmitted mixedly, and the NDI domain can uniformly indicate the scheduling of all processes. Then the scheduling of the process includes at least one of the following states.
[0403] Table 1-1 4 Process non-mixed state scheduling
[0404]
[0405] When sched...
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