# US 2022/0046431 A1 · Cell and full duplex beam pair updating

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- Number: US 2022/0046431 A1
- Document ID: US20220046431A1
- Status: Published application
- Kind: A1
- Application number: 17/444,137
- Filed: 2021-07-30
- Published: 2022-02-10
- Earliest claimed: 2020-08-06
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Qian ZHANG; Yan ZHOU; Junyi LI; Navid ABEDINI; Tao LUO
- Web page: https://patentgrep.com/patent/US20220046431A1

## CPC

- H04B 7/088: {using beam selection}
- H04W 16/28: using beam steering
- H04B 7/0696: {Determining beam pairs}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- H04W 36/00692: {using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] (allocation of physical resources in CoMP or in CA H04L5/0035)}
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a message that includes: an indication of one or more selected cells associated with one or more component carriers, and an indication of one or more uplink and downlink beam pairs for full duplex operation. The UE may transmit an uplink communication and receive a downlink communication based at least in part on the message. Numerous other aspects are described.

## Claims

### Claim 1

A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
receive a message that includes:
an indication of one or more selected cells associated with one or more component carriers, and
an indication of one or more uplink and downlink beam pairs for full duplex operation; and
transmit an uplink communication and receive a downlink communication based at least in part on the message.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the indication of the one or more selected cells includes one or more of:
a physical cell identification, or
a serving cell identification.

### Claim 3 (depends on 1)

The UE of claim 1, wherein the indication of the one or more uplink and downlink beam pairs for full duplex operation comprises:
an indication of at least one downlink and uplink beam pair to use for each of the one or more selected cells.

### Claim 4 (depends on 3)

The UE of claim 3, wherein the indication of the at least one downlink and uplink beam pair comprises:
at least one transmission configuration indicator (TCI) state identification that indicates an uplink direction for a first beam and a downlink direction for a second beam.

### Claim 5 (depends on 4)

The UE of claim 4, wherein the first beam is associated with one or more of:
an uplink shared channel,
an uplink reference signal, or
a physical random access channel.

### Claim 6 (depends on 4)

The UE of claim 4, wherein the second beam is associated with one or more of:
a control resource set identification,
a downlink shared channel, or
a downlink reference signal.

### Claim 7 (depends on 1)

The UE of claim 1, wherein the one or more processors, to transmit the uplink communication and receive the downlink communication, are configured to:
apply an uplink and downlink beam pair, of the one or more uplink and downlink beam pairs, to multiple selected cells of the one or more selected cells or multiple physical cell identifications.

### Claim 8 (depends on 7)

The UE of claim 7, wherein the one or more processors, to apply the uplink and downlink beam pair to the multiple selected cells, are configured to:
determine that the message indicates a first selected cell or physical cell identification to use the uplink and downlink beam pair,
determine, based at least in part on pre-configured information at the UE, that the first selected cell or physical cell identification is associated with a second selected cell or physical cell identification, and
determine, based at least in part on the first selected cell or physical cell identification being associated with the second selected cell or physical cell identification, to apply the uplink and downlink beam pair to the first selected cell or physical cell identification and the second selected cell or physical cell identification.

### Claim 9 (depends on 7)

The UE of claim 7, wherein the one or more processors, to apply the uplink and downlink beam pair to the multiple selected cells, are configured to:
determine that the message indicates a first selected cell or physical cell identification and a second selected cell or physical cell identification to use the uplink and downlink beam pair, or
determine that the message indicates all selected cells or physical cell identifications per cell group are to use the uplink and downlink beam pair.

### Claim 10 (depends on 7)

The UE of claim 7, wherein the one or more processors, to apply the uplink and downlink beam pair to the multiple selected cells, are configured to:
determine that the message indicates a first selected cell or physical cell identification to use the uplink and downlink beam pair and indicates a second selected cell or physical cell identification to use another uplink and downlink beam pair.

### Claim 11 (depends on 7)

The UE of claim 7, wherein the one or more processors, to apply the uplink and downlink beam pair to the multiple selected cells, are configured to:
determine, based at least in part on frequencies of the multiple selected cells, that the UE supports using the uplink and downlink beam pair for the multiple selected cells that have a same bandwidth part.

### Claim 12 (depends on 1)

The UE of claim 1, wherein the one or more processors, to apply the uplink and downlink beam pair to the multiple selected cells, are configured to:
determine, based at least in part on frequencies of the multiple selected cells, that the UE supports using the uplink and downlink beam pair for the multiple selected cells that have different bandwidth parts.

### Claim 13 (depends on 1)

The UE of claim 1, wherein the indication of the one or more uplink and downlink beam pairs for full duplex operation comprises:
an indication of at least one downlink and uplink beam pair to use for multiple component carriers of the one or more component carriers.

### Claim 14 (depends on 13)

The UE of claim 13, wherein the indication of the at least one downlink and uplink beam pair to use for the multiple component carriers comprises:
an indication of a cell group, that includes the multiple component carriers, to use the at least one downlink and uplink beam pair,
wherein the cell group is a master cell group or a secondary cell group.

### Claim 15 (depends on 13)

The UE of claim 13, wherein the indication of the at least one downlink and uplink beam pair to use for the multiple component carriers comprises:
an indication of a set of aggregated component carriers, that includes the multiple component carriers, to use the uplink and downlink beam pair.

### Claim 16

A base station for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
transmit, to a user equipment (UE), a message that includes:
an indication of one or more selected cells associated with one or more component carriers, and
an indication of one or more uplink and downlink beam pairs for full duplex operation of the UE; and
receive an uplink communication and transmitting a downlink communication based at least in part on the message.

### Claim 17 (depends on 16)

The base station of claim 16, wherein the indication of the one or more uplink and downlink beam pairs for full duplex operation of the UE comprises:
an indication of at least one downlink and uplink beam pair to use for each of the one or more selected cells.

### Claim 18 (depends on 17)

The base station of claim 17, wherein the indication of the at least one downlink and uplink beam pair comprises:
at least one transmission configuration indicator (TCI) state identification that indicates an uplink direction for a first beam and a downlink direction for a second beam.

### Claim 19 (depends on 18)

The base station of claim 18, wherein the first beam is associated with one or more of:
an uplink shared channel,
an uplink reference signal, or
a physical random access channel.

### Claim 20 (depends on 19)

The base station of claim 19, wherein the second beam is associated with one or more of:
a control resource set identification,
a downlink shared channel, or
a downlink reference signal.

### Claim 21 (depends on 16)

The base station of claim 16, wherein the message includes an indication to apply an uplink and downlink beam pair, of the one or more uplink and downlink beam pairs, to multiple selected cells of the one or more selected cells or multiple physical cell identifications.

### Claim 22 (depends on 21)

The base station of claim 21, wherein the indication to apply the uplink and downlink beam pair to the multiple selected cells comprises:
an indication of a first selected cell or physical cell identification to use the uplink and downlink beam pair,
wherein, based at least in part on pre-configured information at the UE, the first selected cell or physical cell identification is associated with a second selected cell or physical cell identification.

### Claim 23 (depends on 21)

The base station of claim 21, wherein the indication to apply the uplink and downlink beam pair to the multiple selected cells comprises:
an indication of a first selected cell or physical cell identification and a second selected cell or physical cell identification to use the uplink and downlink beam pair, or
an indication that all selected cells or physical cell identifications per cell group are to use the uplink and downlink beam pair.

### Claim 24 (depends on 21)

The base station of claim 21, wherein the indication to apply the uplink and downlink beam pair to the multiple selected cells comprises:
an indication of a first selected cell or physical cell identification to use the uplink and downlink beam pair, and
an indication of a second selected cell or physical cell identification to use another uplink and downlink beam pair.

### Claim 25 (depends on 21)

The base station of claim 21, wherein the one or more processors are further configured to:
receive an indication, based at least in part on frequencies of the multiple selected cells, that the UE supports using a single uplink and downlink beam pair for the multiple selected cells that have a same bandwidth part.

### Claim 26 (depends on 21)

The base station of claim 21, wherein the one or more processors are further configured to:
receive an indication, based at least in part on frequencies of the multiple selected cells, that the UE supports using a single uplink and downlink beam pair for the multiple selected cells that have different bandwidth parts.

### Claim 27 (depends on 16)

The base station of claim 16, wherein the indication of the one or more uplink and downlink beam pairs for full duplex operation comprises:
an indication of at least one downlink and uplink beam pair to use for multiple component carriers of the one or more component carriers.

### Claim 28 (depends on 27)

The base station of claim 27, wherein the indication of the at least one downlink and uplink beam pair to use for the multiple component carriers comprises:
an indication of a cell group, that includes the multiple component carriers, to use the at least one downlink and uplink beam pair,
wherein the cell group is a master cell group or a secondary cell group.

### Claim 29

A method of wireless communication performed by a user equipment (UE), comprising:
receiving a message that includes:
an indication of one or more selected cells associated with one or more component carriers, and
an indication of one or more uplink and downlink beam pairs for full duplex operation; and
transmitting an uplink communication and receiving a downlink communication based at least in part on the message.

### Claim 30

A method of wireless communication performed by a base station, comprising:
transmitting, to a user equipment (UE), a message that includes:
an indication of one or more selected cells associated with one or more component carriers, and
an indication of one or more uplink and downlink beam pairs for full duplex operation of the UE; and
receiving an uplink communication and transmitting a downlink communication based at least in part on the message.