Uplink control information transmission method and terminal
地域：
Guangdong
摘要
An UCI transmission method includes: when UCI having different priorities is transmitted on the same target channel, encoding the UCI having different priorities respectively and then transmitting same on the target channel, wherein the priorities of the UCI are determined by information contained in target parameters of DCI and/or in UCI, the DCI being DCI corresponding to being used for indicating the transmission of the UCI.
說明書
This application is a Bypass Continuation Application of PCT/CN2019/126572 filed on Dec. 19, 2019, which claims priority to Chinese Patent Application No. 201811594137.9 filed on Dec. 25, 2018, which are incorporated herein by reference in their entirety.
This disclosure relates to the field of communications technologies, and in particular, to an uplink control information (UCI) transmission method and a terminal.
Compared with previous mobile communications systems, future 5G mobile communications systems need to adapt to more diversified scenarios and service requirements. Main 5G scenarios include: enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine type communications (mMTC). These scenarios require a system to provide high reliability, low latency, large bandwidth, wide coverage, and so on. For terminals supporting URLLC ultra-reliable and low latency services, to achieve higher reliability, a lower code rate is required for transmitting data, and faster and more accurate channel state information (CSI) feedback is also required. In addition, for some terminals that might support services with different numerologies, the terminals support not only ultra-reliable and low-latency URLLC services, but also large-capacity and high-rate eMBB services. Different types of reliability requirements are mainly embodied in different block error rate targets (BLER targets) and latency requirements.
Embodiments of this disclosure provide an UCI transmission method, applied to a terminal and including:
權(quán)利要求
What is claimed is:1. An uplink control information (UCI) transmission method, comprising:in a case that pieces of UCI of different priorities are to be transmitted on a same target channel, coding, by a terminal, the pieces of UCI of different priorities respectively and transmitting, by the terminal, the coded pieces of UCI on the target channel, wherein a priority of the UCI is determined by a target parameter of downlink control information (DCI) and/or information contained in the UCI, the DCI is used to indicate DCI corresponding to transmission of the UCI, and the target channel comprise a physical uplink control channel (PUCCH); wherein the method further comprises: in a case that the pieces of UCI of different priorities are coded respectively, using, by the terminal, different code rates for the pieces of UCI of different priorities; and the method further comprises: determining, by the terminal, code rates used for the pieces of UCI of different priorities based on a first scaling factor and a code rate corresponding to a PUCCH resource, wherein the first scaling factor is configured by radio resource control (RRC), or indicated by DCI, or defined in a protocol; or determining, by the terminal, code rates used for the pieces of UCI of different priorities based on code rates that correspond to the pieces of UCI of different priorities configured by radio resource control (RRC). 2. The method according to claim 1 , wherein in a case that the priorities of the pieces of UCI comprise at least a first priority and a second priority, the method further comprises:in a case that the pieces of UCI of different priorities are coded respectively, allocating, by the terminal, resources for transmission of UCI of the first priority based on a code rate configured by RRC, and allocating, by the terminal, remaining resources for transmission of UCI of the second priority, wherein the first priority is higher than the second priority. 3. The method according to claim 1 , wherein the coding, by the terminal, the pieces of UCI of different priorities respectively and transmitting, by the terminal, the coded pieces of UCI on the target channel comprises:coding, by the terminal, the pieces of UCI of different priorities respectively, mapping, by the terminal, the coded pieces of UCI of different priorities to physical resources by using a time domain-first mapping method, and transmitting, by the terminal, the coded pieces of UCI on the target channel. 4. A terminal, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, causes the processor to perform:in a case that pieces of uplink control information (UCI) of different priorities are to be transmitted on a same target channel, coding the pieces of UCI of different priorities respectively and transmitting the coded pieces of UCI on the target channel, wherein a priority of the UCI is determined by a target parameter of downlink control information (DCI) and/or information contained in the UCI, the DCI is used to indicate DCI corresponding to transmission of the UCI, and the target channel comprises a physical uplink control channel (PUCCH); and the computer program, when executed by the processor, causes the processor to perform: in a case that the pieces of UCI of different priorities are coded respectively, using different code rates for the pieces of UCI of different priorities; and the computer program, when executed by the processor, causes the processor to perform: determining code rates used for the pieces of UCI of different priorities based on a first scaling factor and a code rate corresponding to a PUCCH resource, wherein the first scaling factor is configured by radio resource control (RRC), or indicated by DCI, or defined in a protocol; or determining code rates used for the pieces of UCI of different priorities based on code rates that correspond to the pieces of UCI of different priorities configured by radio resource control (RRC). 5. The terminal according to claim 4 , wherein in a case that the priorities of the pieces of UCI comprise at least a first priority and a second priority, the computer program, when executed by the processor, causes the processor to perform:in a case that the pieces of UCI of different priorities are coded respectively, allocating resources for transmission of UCI of the first priority based on a code rate configured by RRC, and allocating remaining resources for transmission of UCI of the second priority, wherein the first priority is higher than the second priority. 6. The terminal according to claim 4 , wherein the computer program, when executed by the processor, causes the processor to perform:coding the pieces of UCI of different priorities respectively, mapping the coded pieces of UCI of different priorities to physical resources by using a time domain-first mapping method, and transmitting the coded pieces of UCI on the target channel. 7. A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, causes the processor to perform:in a case that pieces of uplink control information (UCI) of different priorities are to be transmitted on a same target channel, coding the pieces of UCI of different priorities respectively and transmitting, the coded pieces of UCI on the target channel, wherein a priority of the UCI is determined by a target parameter of downlink control information (DCI) and/or information contained in the UCI, the DCI is used to indicate DCI corresponding to transmission of the UCI, and the target channel comprises a physical uplink control channel (PUCCH); and the computer program, when executed by the processor, causes the processor to perform: in a case that the pieces of UCI of different priorities are coded respectively, using different code rates for the pieces of UCI of different priorities; and the computer program, when executed by the processor, causes the processor to perform: determining code rates used for the pieces of UCI of different priorities based on a first scaling factor and a code rate corresponding to a PUCCH resource, wherein the first scaling factor is configured by radio resource control (RRC), or indicated by DCI, or defined in a protocol; or determining code rates used for the pieces of UCI of different priorities based on code rates that correspond to the pieces of UCI of different priorities configured by radio resource control (RRC). 8. The non-transitory computer-readable storage medium according to claim 7 , wherein in a case that the priorities of the pieces of UCI comprise at least a first priority and a second priority, the computer program, when executed by a processor, causes the processor to perform:in a case that the pieces of UCI of different priorities are coded respectively, allocating resources for transmission of UCI of the first priority based on a code rate configured by RRC, and allocating remaining resources for transmission of UCI of the second priority, wherein the first priority is higher than the second priority. 9. The non-transitory computer-readable storage medium according to claim 7 , wherein the computer program, when executed by a processor, causes the processor to perform:coding the pieces of UCI of different priorities respectively, mapping the coded pieces of UCI of different priorities to physical resources by using a time domain-first mapping method, and transmitting the coded pieces of UCI on the target channel.
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