Uplink signal transmission method and device
An uplink signal transmission method includes: transmitting a target uplink signal on the basis of a target transmission pattern, wherein the target transmission pattern is related to at least one of the uplink beamforming capability of a terminal device or the number of retransmissions of the target uplink signal.
1. An uplink signal transmission method, wherein the method comprises:
transmitting, by a terminal device, a target uplink signal based on a target transmission pattern, wherein
the target transmission pattern is associated with an uplink beamforming capability of the terminal device, or the target transmission pattern is associated with an uplink beamforming capability of the terminal device and the number of repeated transmissions of the target uplink signal;
wherein the uplink beamforming capability of the terminal device comprises: whether the terminal device supports uplink beamforming, and in a case that the terminal device supports beamforming, the number of uplink sounding reference signal (SRS) resource sets supported by the terminal device, and the number of SRS resources comprised in one SRS resource set; and
the target transmission pattern comprises N reference signal (RS) resource groups, and each RS resource group comprises M RS resources, wherein N is a product of the number of SRS resource sets supported by the terminal device and the number of SRS resources comprised in one SRS resource set, and M is the number of repeated transmissions of the target uplink signal.
2. The method according to claim 1 , wherein the target uplink signal comprises an uplink signal for uplink positioning.
3. The method according to claim 1 , wherein before the transmitting, by the terminal device, the target uplink signal based on the target transmission pattern, the method further comprises:
transmitting, by the terminal device, capability information to a network side device, wherein the capability information comprises the number of SRS resource sets supported by the terminal device and the number of SRS resources comprised in one SRS resource set; and
receiving, by the terminal device, first configuration information comprising the target transmission pattern from the network side device, and configuring the target transmission pattern as a transmission pattern for transmitting the target uplink signal;
or
receiving, by the terminal device, indication information from the network side device, determining the target transmission pattern in a predefined transmission pattern set based on the indication information, and configuring the target transmission pattern as a transmission pattern for transmitting the target uplink signal.
4. The method according to claim 1 , wherein in a case that the number of repeated transmissions of the target uplink signal is greater than 1, a transmission sequence of repeated target uplink signal is successive.
5. The method according to claim 1 , wherein
M RS resources in one RS resource group correspond to a same transmission beam; and
transmission beams corresponding to any two RS resource groups in the target transmission pattern are different, and a transmission beam corresponding to a RS resource group is a transmission beam corresponding to RS resources in the RS resource group.
6. The method according to claim 1 , wherein
all RS resources in the target transmission pattern have a same transmission power.
7. The method according to claim 1 , wherein in a case that the terminal device is in an idle state or an inactive state, the method further comprises:
before completion of connected state release, receiving, by the terminal device, from a network side device, second configuration information comprising a target power, and configuring the target power as a transmission power of the target uplink signal;
or
before completion of connected state release, receiving, by the terminal device, third configuration information from a network side device, and determining a transmission power of the target uplink signal based on a camp cell, wherein the third configuration information is used to indicate that the terminal device determines the transmission power of the target uplink signal based on the camp cell;
or
before completion of connected state release, receiving, by the terminal device, fourth configuration information from a network side device, wherein the fourth configuration information comprises a target timing advance (TA); and
configuring, by the terminal device, a TA of the target uplink signal as the target TA;
or
before completion of connected state release, receiving, by the terminal device, fifth configuration information from a network side device, wherein the fifth configuration information is used to indicate that the terminal device determines a timing of a target cell to be a reference timing of the target uplink signal; and
determining, by the terminal device, the timing of the target cell to be the reference timing of the target uplink signal, wherein
the target cell is a camp cell of the terminal device; or the target cell is a cell closest to the terminal device among cells adjacent to a camp cell of the terminal device.
8. The method according to claim 7 , wherein the target TA is 0.
9. The method according to claim 1 , wherein a modulation mode of a coded sequence of the target uplink signal is π/2−BPSK.
10. The method according to claim 1 , wherein a time-frequency pattern of the target uplink signal is a target time-frequency pattern; and
the target time-frequency pattern is determined by the terminal device based on a comb structure type of the target uplink signal, the number of symbols occupied by the target uplink signal in one slot, and a frequency domain offset between adjacent subcarriers.
11. The method according to claim 1 , wherein the target uplink signal comprises an uplink sounding reference signal (SRS), a physical random access channel (PRACH), an uplink positioning reference signal (UL PRS), or a target signal, wherein
the target signal is a signal defined for uplink positioning in a new radio (NR) network.
12. A terminal device, 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 terminal device to perform:
transmitting a target uplink signal based on a target transmission pattern, wherein
the target transmission pattern is associated with an uplink beamforming capability of the terminal device, or the target transmission pattern is associated with an uplink beamforming capability of the terminal device and the number of repeated transmissions of the target uplink signal;
wherein the uplink beamforming capability of the terminal device comprises: whether the terminal device supports uplink beamforming, and in a case that the terminal device supports beamforming, the number of uplink sounding reference signal (SRS) resource sets supported by the terminal device, and the number of SRS resources comprised in one SRS resource set; and
the target transmission pattern comprises N reference signal (RS) resource groups, and each RS resource group comprises M RS resources, wherein N is a product of the number of SRS resource sets supported by the terminal device and the number of SRS resources comprised in one SRS resource set, and M is the number of repeated transmissions of the target uplink signal.
13. The terminal device according to claim 12 , wherein the target uplink signal comprises an uplink signal for uplink positioning.
14. The terminal device according to claim 12 , wherein the computer program, when executed by the processor, causes the terminal device to further perform:
transmitting capability information to a network side device, wherein the capability information comprises the number of SRS resource sets supported by the terminal device and the number of SRS resources comprised in one SRS resource set; and
receiving first configuration information comprising the target transmission pattern from the network side device, and configuring the target transmission pattern as a transmission pattern for transmitting the target uplink signal;
or
receiving indication information from the network side device, determining the target transmission pattern in a predefined transmission pattern set based on the indication information, and configuring the target transmission pattern as a transmission pattern for transmitting the target uplink signal.
15. The terminal device according to claim 12 , wherein in a case that the number of repeated transmissions of the target uplink signal is greater than 1, a transmission sequence of repeated target uplink signal is successive.
16. The terminal device according to claim 12 , wherein
M RS resources in one RS resource group correspond to a same transmission beam; and
transmission beams corresponding to any two RS resource groups in the target transmission pattern are different, and a transmission beam corresponding to a RS resource group is a transmission beam corresponding to RS resources in the RS resource group.
17. The terminal device according to claim 12 , wherein
all RS resources in the target transmission pattern have a same transmission power.
18. The terminal device according to claim 12 , wherein in a case that the terminal device is in an idle state or an inactive state, the computer program, when executed by the processor, causes the terminal device to further perform:
before completion of connected state release, receiving from a network side device, second configuration information comprising a target power, and configuring the target power as a transmission power of the target uplink signal;
or
before completion of connected state release, receiving third configuration information from a network side device, and determining a transmission power of the target uplink signal based on a camp cell, wherein the third configuration information is used to indicate that the terminal device determines the transmission power of the target uplink signal based on the camp cell;
or
before completion of connected state release, receiving fourth configuration information from a network side device, wherein the fourth configuration information comprises a target timing advance (TA); and
configuring a TA of the target uplink signal as the target TA;
or
before completion of connected state release, receiving fifth configuration information from a network side device, wherein the fifth configuration information is used to indicate that the terminal device determines a timing of a target cell to be a reference timing of the target uplink signal; and
determining the timing of the target cell to be the reference timing of the target uplink signal, wherein
the target cell is a camp cell of the terminal device; or the target cell is a cell closest to the terminal device among cells adjacent to a camp cell of the terminal device.
19. The terminal device according to claim 12 , wherein a modulation mode of a coded sequence of the target uplink signal is π/2−BPSK.
20. 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 of a terminal device, causes the terminal device to perform:
transmitting a target uplink signal based on a target transmission pattern, wherein
the target transmission pattern is associated with an uplink beamforming capability of the terminal device, or the target transmission pattern is associated with an uplink beamforming capability of the terminal device and the number of repeated transmissions of the target uplink signal;
wherein the uplink beamforming capability of the terminal device comprises: whether the terminal device supports uplink beamforming, and in a case that the terminal device supports beamforming, the number of uplink sounding reference signal (SRS) resource sets supported by the terminal device, and the number of SRS resources comprised in one SRS resource set; and
the target transmission pattern comprises N reference signal (RS) resource groups, and each RS resource group comprises M RS resources, wherein N is a product of the number of SRS resource sets supported by the terminal device and the number of SRS resources comprised in one SRS resource set, and M is the number of repeated transmissions of the target uplink signal.