Method for obtaining transmission reception point information, user terminal, and readable storage medium

Patent metadata

Field	Value
Publication number	US-2022007387-A1
Application number	US-201917289707-A
Country	US
Kind code	A1
Filing date	Oct 24, 2019
Priority date	Nov 1, 2018
Publication date	Jan 6, 2022
Grant date	—

Abstract

A method for obtaining transmission reception point (TRP) information, a user terminal, and a readable storage medium. The method comprises: receiving control information, the control information being suitable for triggering a signal or a channel; obtaining TCI comprised in the control information; and obtaining, according to the TCI, a TRP that participates in transmitting a signal or a channel triggered by the control information. The solution above can implement dynamic switching between a single TRP transmission scheme and a multi-TRP transmission scheme.

First claim

1 . A method for obtaining a transmission reception point (TRP) information, comprising:
receiving a control information which is adapted to trigger a signal or a channel; obtaining a Transmission Configuration Indication (TCI) comprised in the control information; and obtaining, according to the TCI, a TRP which participates in transmitting the signal or the channel triggered by the control information.

2 . The method for obtaining a TRP information according to claim 1 , wherein a number of the TCI comprised in the control information is one, where the TCI comprises multiple Reference Signal (RS) groupings, and each RS grouping has a corresponding TRP;
wherein obtaining, according to the TCI, a TRP which participates in transmitting the signal or the channel triggered by the control information comprises: detecting whether a Quasi Co-Located (QCL) configuration corresponding to each RS grouping meets a preset condition; and when a QCL configuration corresponding to a first RS grouping does not meet the preset condition, determining that a TRP corresponding to the first RS grouping participates in transmitting the signal or the channel triggered by the control information.

3 . The method for obtaining a TRP information according to claim 2 , wherein obtaining, according to the TCI, a TRP which participates in transmitting the signal or the channel triggered by the control information further comprises:
when the QCL configuration corresponding to the first RS grouping meets the preset condition, determining that the TRP corresponding to the first RS grouping does not participate in transmitting the signal or the channel triggered by the control information.

4 . The method for obtaining a TRP information according to claim 1 , wherein a number of the TCI comprised in the control information is more than one, and each TCI has a corresponding TRP;
wherein obtaining, according to the TCI, a TRP which participates in transmitting the signal or the channel triggered by the control information comprises: detecting whether a value of a first TCI comprised in the control information is a preset value; and when the value of the first TCI is equal to the preset value, determining that a TRP corresponding to the first TCI does not participate in transmitting the signal or the channel triggered by the control information.

5 . The method for obtaining a TRP information according to claim 4 , wherein obtaining, according to the TCI, a TRP which participates in transmitting the signal or the channel triggered by the control information further comprises:
when a value of any TCI comprised in the control information is not equal to the preset value, determining that a TRP corresponding to the TCI that has a value not equal to the preset value participates in transmitting the signal or the channel triggered by the control information.

6 . The method for obtaining a TRP information according to claim 3 , wherein the control information is a downlink control information.

7 . A user terminal, comprising:
a receiving unit, adapted to receive a control information which is adapted to trigger a signal or a channel;
a TCI obtaining unit, adapted to obtain a Transmission Configuration Indication (TCI) comprised in the control information; and
a TRP obtaining unit, adapted to, according to the TCI, obtain a transmission reception point (TRP) which participates in transmitting the signal or the channel triggered by the control information.

8 . The user terminal according to claim 7 , wherein a number of the TCI comprised in the control information is one, where the TCI comprises multiple Reference Signal (RS) groupings, and each RS grouping has a corresponding TRP; and wherein the TRP obtaining unit is adapted to detect whether a Quasi Co-Located (QCL) configuration corresponding to each RS grouping meets a preset condition, and when a QCL configuration corresponding to a first RS grouping does not meet the preset condition, to determine that a TRP corresponding to the first RS grouping participates in transmitting the signal or the channel triggered by the control information.

9 . The user terminal according to claim 8 , wherein the TRP obtaining unit is further adapted to, when the QCL configuration corresponding to the first RS grouping meets the preset condition, determine that the TRP corresponding to the first RS grouping does not participate in transmitting the signal or the channel triggered by the control information.

10 . The user terminal according to claim 7 , wherein a number of the TCI comprised in the control information is more than one, and each TCI has a corresponding TRP; and wherein the TRP obtaining unit is further adapted to detect whether a value of a first TCI comprised in the control information is a preset value, and when the value of the first TCI is equal to the preset value, to determine that a TRP corresponding to the first TCI does not participate in transmitting the signal or the channel triggered by the control information.

11 . The user terminal according to claim 10 , wherein the TRP obtaining unit is further adapted to, when a value of any TCI comprised in the control information is not equal to the preset value, determine that a TRP corresponding to the TCI that has a value not equal to the preset value participates in transmitting the signal or the channel triggered by the control information.

12 . The user terminal according to claim 9 , wherein the control information is a downlink control information.

13 . A readable storage medium having computer instructions stored therein, wherein the readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and once the computer instructions are executed, the method according to claim 1 is performed.

14 . A user terminal having a memory and a processor, wherein the memory has computer instructions stored therein, and when the processor executes the computer instructions, the above method according to claim 1 is performed.

15 . The method for obtaining a TRP information according to claim 5 , wherein the control information is a downlink control information.

16 . The user terminal according to claim 11 , wherein the control information is a downlink control information.

Assignees

• Beijing Unisoc Comm Tech Co Ltd

Inventors

• Wang Hualei

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/1273

  of downlink data flows · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W36/0083 Primary

  Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title