Method and UE for beam-based wireless communication

Inventors: Qi Jiang (Shanghai, CN); Xiaobo Zhang (Shanghai, CN)

Assignee: Apogee 5G Global, LLC

H04L5/0051

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Quick Facts

Patent No.: US 12683741
App. No.: 18/132,412
Granted: Jul 14, 2026
Kind: B2

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Abstract

A method and device in nodes used for wireless communication. A node first receives a first information block and a second information block, then monitors a first signaling; and receives a first signal; the first information block indicates target reference signal resources; the first signaling and the target reference signal resource are QCL, the first signaling indicates a first reference signal resource from a first reference signal resource set, and the first signal and the first reference signal resource are QCL; the second information block indicates L candidate reference signal resource sets, and the first reference signal resource set is one of the L candidate reference signal resource sets; an identity associated with the target reference signal resource is used to determine the first reference signal resource set. The present application optimizes the design method and device of beam activation to improve mobility performance.

Claims (34)

1 . A user equipment (UE) configured for wireless communications, the UE comprising:

a receiver; and

a processor, wherein:

the receiver and the processor are configured to receive a first information block and a second information block, wherein the first information block indicates a target reference signal resource, wherein the second information block indicates L candidate reference signal resource sets, L being a positive integer greater than 1, wherein the target reference signal resource is associated with one of L identities, the L identities are respectively associated with the L candidate reference signal resource sets;

the receiver and the processor are further configured to monitor a first signaling in a first time-frequency resource set, wherein a demodulation reference signal of a channel occupied by the first signaling and the target reference signal resource are Quasi Co-Located (QCL), wherein the first signaling comprises a first field, wherein the first field indicates a first reference signal resource from a first reference signal resource set, wherein the first reference signal resource set is one of the L candidate reference signal resource sets, wherein the first reference signal resource set is a candidate reference signal resource set associated with a first identity among the L candidate reference signal resource sets, and the first identity is an identity associated with the target reference signal resource among the L identities; and

the receiver and the processor are further configured to receive a first signal in a second time-frequency resource set, wherein a demodulation reference signal of a channel occupied by the first signaling and the target reference signal resources are quasi co-located (QCL).

2 . The UE of claim 1 , wherein a demodulation reference signal (DMSR) of a channel occupied by the first signaling and the target reference signal resource have a first QCL relation, and a DMRS of a channel occupied by the first signal and the first reference signal resource have a second QCL relation; the first information block comprises a first TCI state, and the first TCI state indicates the target reference signal resource and the first QCL relation; the second information block comprises L TCI state sets, the L TCI state sets respectively correspond to the L candidate reference signal resource sets, any of the L TCI state sets comprises at least one TCI state, and a TCI state in any of the L TCI state sets indicates a candidate reference signal in a corresponding candidate reference signal resource set and a QCL relation; the second QCL relation and the first reference signal resource are indicated by a same TCI state.

3 . The UE of claim 1 , wherein the L identities respectively indicate L cells; when an identity is used to generate a signal in a reference signal resource, the reference signal resource is associated with the identity; or, when a reference signal resource and a synchronization signal block (SSB) of a cell are QCL, the reference signal resource is associated with an identity indicating the cell.

4 . The UE of claim 1 , wherein the L identities respectively indicate L cells, radio resources occupied by a reference signal resource are indicated by a configuration signaling, a radio link control (RLC) bearer associated with the configuration signaling is configured through a CellGroupConfig information element (IE), and when a special cell (Spcell) configured by the CellGroupConfig IE comprises a cell, the reference signal is associated with an identity indicating the cell.

5 . The UE of claim 1 , wherein the first information block comprises a second field, the second field is used to indicate an identity associated with the target reference signal resource among the L identities, and a number of one or more bits occupied by the second field is greater than 5.

6 . The UE of claim 1 , wherein the receiver and the processor are further configured to receive a third information block, the third information block is used to indicate M1 first-type reference signal resources, M1 being a positive integer greater than 1, the target reference signal resource is one of the M1 first-type reference signal resources, and the first information block is used to indicate the target reference signal resource from the M1 first-type reference signal resources.

7 . The UE of claim 1 , wherein the second information block comprises L target fields; the L target fields are respectively used to indicate the L candidate reference signal resource sets, and the L identities associated with the L candidate reference signal resource sets.

8 . The UE of claim 1 , wherein the receiver and the processor are further configured to receive a fourth information block, wherein the fourth information block is used to indicate L second-type reference signal resource pools, the L candidate reference signal resource sets respectively correspond to the L second-type reference signal resource pools, and the second information block is used to indicate the L candidate reference signal resource sets from the L second-type reference signal resource pools.

9 . The UE of claim 1 , wherein:

the target reference signal resource is associated with a TCI state, radio resource control (RRC) configuration information of the TCI state also comprises a given identity associated with the target reference signal resource, and the given identity is one of the L identities; or

the target reference signal resource is associated with a channel state information reference signal (CSI-RS) resource, RRC configuration information of the CSI-RS resource also comprises a given identity associated with the target reference signal resource, and the given identity is one of the L identities.

10 . The UE of claim 1 , wherein any of the L identities is a physical cell identity (PCI), or any of the L identities is a CellGroupId, or any of the L identities is a PhysicalCellGroupId.

11 . A method for use in a user equipment (UE) configured for wireless communications, the method comprising:

receiving a first information block and a second information block, wherein the first information block indicates a target reference signal resource, wherein the second information block indicates L candidate reference signal resource sets, L being a positive integer greater than 1, wherein the target reference signal resource is associated with one of L identities, the L identities are respectively associated with the L candidate reference signal resource sets;

monitoring a first signaling in a first time-frequency resource set, wherein a demodulation reference signal of a channel occupied by the first signaling and the target reference signal resource are quasi co-located (QCL), wherein the first signaling comprises a first field, wherein the first field indicates a first reference signal resource from a first reference signal resource set, wherein the first reference signal resource set is one of the L candidate reference signal resource sets, wherein the first reference signal resource set is a candidate reference signal resource set associated with a first identity among the L candidate reference signal resource sets, and the first identity is an identity associated with the target reference signal resource among the L identities; and

receiving a first signal in a second time-frequency resource set, wherein a demodulation reference signal of a channel occupied by the first signaling and the target reference signal resources are quasi co-located (QCL).

12 . The method of claim 11 , wherein a demodulation reference signal (DMSR) of a channel occupied by the first signaling and the target reference signal resource have a first QCL relation, and a DMRS of a channel occupied by the first signal and the first reference signal resource have a second QCL relation; the first information block comprises a first TCI state, and the first TCI state indicates the target reference signal resource and the first QCL relation; the second information block comprises L TCI state sets, the L TCI state sets respectively correspond to the L candidate reference signal resource sets, any of the L TCI state sets comprises at least one TCI state, and a TCI state in any of the L TCI state sets indicates a candidate reference signal in a corresponding candidate reference signal resource set and a QCL relation; the second QCL relation and the first reference signal resource are indicated by a same TCI state.

13 . The method of claim 11 , wherein the L identities respectively indicate L cells; when an identity is used to generate a signal in a reference signal resource, the reference signal resource is associated with the identity; or, when a reference signal resource and a synchronization signal block (SSB) of a cell are QCL, the reference signal resource is associated with an identity indicating the cell.

14 . The method of claim 11 , wherein the L identities respectively indicate L cells, radio resources occupied by a reference signal resource are indicated by a configuration signaling, a radio link control (RLC) bearer associated with the configuration signaling is configured through a CellGroupConfig information element (IE), and when a special cell (Spcell) configured by the CellGroupConfig IE comprises a cell, the reference signal is associated with an identity indicating the cell.

15 . The method of claim 11 , wherein the first information block comprises a second field, the second field is used to indicate an identity associated with the target reference signal resource among the L identities, and a number of one or more bits occupied by the second field is greater than 5.

16 . The method of claim 11 , further comprising:

receiving a third information block, wherein the third information block is used to indicate M1 first-type reference signal resources, M1 being a positive integer greater than 1, the target reference signal resource is one of the M1 first-type reference signal resources, and the first information block is used to indicate the target reference signal resource from the M1 first-type reference signal resources.

17 . The method of claim 11 , wherein the second information block comprises L target fields; the L target fields are respectively used to indicate the L candidate reference signal resource sets, and the L identities associated with the L candidate reference signal resource sets.

18 . The method of claim 11 , further comprising:

receiving a fourth information block, wherein the fourth information block is used to indicate L second-type reference signal resource pools, the L candidate reference signal resource sets respectively correspond to the L second-type reference signal resource pools, and the second information block is used to indicate the L candidate reference signal resource sets from the L second-type reference signal resource pools.

19 . The method of claim 11 , wherein:

20 . The method of claim 11 , wherein any of the L identities is a physical cell identity (PCI), or any of the L identities is a CellGroupId, or any of the L identities is a PhysicalCellGroupId.