TRANSMISSION CONFIGURATION INDICATOR (TCI) FOR FLEXIBLE MULTIPLE TRANSMISSION AND RECEPTION POINT (mTRP) BEAM INDICATION AND MULTIPLEXING CONFIGURATIONS

Patent metadata

Field	Value
Publication number	US-2023262703-A1
Application number	US-202217669951-A
Country	US
Kind code	A1
Filing date	Feb 11, 2022
Priority date	Feb 11, 2022
Publication date	Aug 17, 2023
Grant date	—

Abstract

A radio access network (RAN) entity transmits a first transmission configuration indicator (TCI) state activation message, mapping first and second TCI states and a first multiple transmission and reception point (mTRP) configuration (if included) to a first TCI codepoint. The RAN entity also transmits a second TCI state activation message, mapping third and fourth TCI states and a second mTRP configuration (if included) to a second TCI codepoint. The first and second TCI codepoints are activated. The first and second TCI codepoints are associated with a first downlink control information (DCI) format and a second DCI format, respectively. In some aspects, TCI states and mTRP configurations (if included) are activated and mapped to one TCI codepoint, where the first and second TCI states and first mTRP configuration are associated with a first DCI and the third and fourth TCI states and second mTRP configuration are associated with a second DCI.

First claim

What is claimed is:

1 . A radio access network (RAN) entity for wireless communication, comprising:
a transceiver; a memory; and a processor communicatively coupled to the transceiver and the memory, the processor and the memory being configured to:
transmit a first transmission configuration indicator (TCI) state activation message, the first TCI state activation message:
mapping at least a first TCI state, a second TCI state, and a first multiple transmission and reception point (mTRP) configuration to at least a first TCI codepoint; and
activating the at least the first TCI codepoint; and

transmit a beam indication message indicating the at least the first TCI codepoint.

2 . The RAN entity of claim 1 , wherein the processor and the memory are further configured to:
transmit a scheduling message indicating scheduled resources corresponding to a first beam associated with the first TCI state and a second beam associated with the second TCI state, the first TCI state and the second TCI state mapped to the at least the first TCI codepoint.

3 . The RAN entity of claim 1 , wherein the beam indication message indicates scheduled resources corresponding to a first beam associated with the first TCI state and a second beam associated with the second TCI state, the first TCI state and the second TCI state mapped to the at least the first TCI codepoint.

4 . The RAN entity of claim 1 , wherein in response to the first TCI state and the second TCI state corresponding to two downlink (DL) TCI states, the processor and the memory are further configured to obtain the first mTRP configuration from at least one of:
a first frequency division multiplexing (FDM) configuration for physical downlink shared channel (PDSCH), a second FDM configuration for PDSCH, an intra-slot time division multiplexing (TDM) configuration for PDSCH, an inter-slot TDM configuration for PDSCH, or a spatial division multiplexing (SDM) configuration for PDSCH.

5 . The RAN entity of claim 1 , wherein in response to the first TCI state and the second TCI state corresponding to two uplink (UL) TCI states, the processor and the memory are further configured to obtain the first mTRP configuration for physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), or both PUSCH and PUCCH from at least one of:
a first time division multiplexing (TDM) repetition configuration for (PUSCH), a second TDM repetition configuration for PUSCH, a frequency division multiplexing (FDM) configuration for PUSCH, a spatial division multiplexing (SDM) configuration for PUSCH, an inter-slot TDM configuration for PUCCH, a sub-slot TDM configuration for PUCCH, an intra-PUCCH resource beam hopping configuration for PUCCH, or an FDM configuration for PUCCH.

6 . The RAN entity of claim 1 , wherein in response to the first TCI state and the second TCI state corresponding to two DL TCI states and two UL TCI states, respectively, the processor and the memory are further configured to map the at least the first TCI codepoint to:
a first DL TCI state, a second DL TCI state, the first mTRP configuration, wherein the first mTRP configuration is an mTRP configuration for PDSCH, a first UL TCI state, a second UL TCI state, and a second mTRP configuration for PUSCH or PUCCH.

7 . The RAN entity of claim 1 , wherein in response to the first TCI state and the second TCI state corresponding to two joint downlink/uplink (DL/UL) TCI states, the processor and the memory are further configured to map the at least the first TCI codepoint to:
a first joint DL/UL TCI state, a second joint DL/UL TCI state, the first mTRP configuration, wherein the first mTRP configuration is an mTRP configuration for PDSCH, a second mTRP configuration for PUSCH, and a third mTRP configuration for PUCCH.

8 . The RAN entity of claim 1 , wherein the processor and the memory are further configured to:
transmit a second TCI state activation message, the second TCI state activation message:
mapping at least a third TCI state, a fourth TCI state, and a second mTRP configuration to a second TCI codepoint, and
activating the second TCI codepoint, wherein:
the first TCI state activation message, including the at least the first TCI codepoint, corresponds to a first downlink control information (DCI) format, and
the second TCI state activation message, including the second TCI codepoint, corresponds to a second DCI format; and

include at least one of: the at least the first TCI codepoint, or the second TCI codepoint in the beam indication message.

9 . The RAN entity of claim 8 , wherein the first DCI format is a DCI format 1_1, and the second DCI format is a DCI format 1_2.

10 . The RAN entity of claim 1 , wherein the processor and the memory are further configured to:
map at least a third TCI state, a fourth TCI state, and a second mTRP configuration to the at least the first TCI codepoint; and activate, via the first TCI state activation message, the at least the third TCI state, the fourth TCI state, and the second mTRP configuration, wherein:
the at least the first TCI state, the second TCI state, and the first mTRP configuration of the at least the first TCI codepoint correspond to a first downlink control information (DCI) format, and
the at least the third TCI state, the fourth TCI state, and the second mTRP configuration of the at least the first TCI codepoint correspond to a second DCI format.

11 . The RAN entity of claim 10 , wherein the first DCI format is a DCI format 1_1, and the second DCI format is a DCI format 1_2.

12 . A method at a radio access network (RAN) entity, comprising:
transmitting a first transmission configuration indicator (TCI) state activation message, the first TCI state activation message:
mapping at least a first TCI state, a second TCI state, and a first multiple transmission and reception point (mTRP) configuration to at least a first TCI codepoint, and
activating the at least the first TCI codepoint; and
transmitting a beam indication message indicating the at least the first TCI codepoint.

13 . The method of claim 12 , further comprising:
transmitting a scheduling message indicating scheduled resources corresponding to a first beam associated with the first TCI state and a second beam associated with the second TCI state, the first TCI state and the second TCI state mapped to the at least the first TCI codepoint.

14 . The method of claim 12 , wherein the beam indication message indicates scheduled resources corresponding to a first beam associated with the first TCI state and a second beam associated with the second TCI state, the first TCI state and the second TCI state mapped to the at least the first TCI codepoint.

15 . The method of claim 12 , wherein in response to the first TCI state and the second TCI state corresponding to two downlink (DL) TCI states, the first mTRP configuration is at least one of:
a first frequency division multiplexing (FDM) configuration for physical downlink shared channel (PDSCH), a second FDM configuration for PDSCH, an intra-slot time division multiplexing (TDM) configuration for PDSCH, an inter-slot TDM configuration for PDSCH, or a spatial division multiplexing (SDM) configuration for PDSCH.

16 . The method of claim 12 , wherein in response to the first TCI state and the second TCI state corresponding to two uplink (UL) TCI states, the first mTRP configuration for physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), or both PUSCH and PUCCH is at least one of:
a first time divis

Assignees

• Qualcomm Inc

Inventors

• Chen Yitao
• Khoshnevisan Mostafa
• Sun Jing

Classifications

• H04B7/0413 Primary

  MIMO systems · CPC title

• H04W72/1268

  of uplink data flows · CPC title

• H04W72/1273

  of downlink data flows · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04B7/086

  using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming · CPC title