# US 11,910,380 B2 · UE capabilities for supporting complementary bandwidth part operations in wireless communication

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- Number: US 11,910,380 B2
- Document ID: US11910380B2
- Status: Granted
- Kind: B2
- Application number: 17/374,742
- Filed: 2021-07-13
- Published: 2022-01-20
- Granted: 2024-02-20
- Earliest claimed: 2020-07-14
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Ahmed Attia Abotabl; Muhammad Sayed Khairy Abdelghaffar; Abdelrahman Mohamed Ahmed Mohamed Ibrahim; Wanshi Chen; Krishna Kiran Mukkavilli
- Web page: https://patentgrep.com/patent/US11910380B2

## CPC

- H04W 72/1268: of uplink data flows
- H04W 8/24: Transfer of terminal data
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/569: {of the traffic information}
- H04W 72/51: based on terminal or device properties
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Aspects of the present disclosure provide techniques for wireless communication using a user equipment (UE) capability indication to support complementary bandwidth part (BWP) operations. In one aspect, a UE can transmit UE capability information to indicate the ability of the UE to support complementary BWP operations, and the network can configure complementary BWP operations based on the UE capability.

## Claims

### Claim 1

A user equipment (UE) for wireless communication, comprising:
a communication interface configured to communicate with a scheduling entity;
a memory; and
one or more processors coupled with the communication interface and the memory,
the one or more processors being configured to:
receive, from the scheduling entity, a UE capability enquiry message;
transmit, to the scheduling entity, a UE capability information message in response to the UE capability enquiry message, the UE capability information message comprising bandwidth part (BWP) information of the UE, the BWP information indicating that the UE is capable of using a complementary BWP with a predetermined constraint; and
communicate with the scheduling entity using an anchor BWP and the complementary BWP based on the BWP information,
wherein a first switching time between the anchor BWP and the complementary BWP is shorter than a second switching time between the anchor BWP and a non-complementary BWP.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the predetermined constraint comprises at least one of:
a bandwidth constraint of the complementary BWP;
a frequency allocation constraint of the complementary BWP; or
a network configuration constraint of the complementary BWP.

### Claim 3 (depends on 1)

The UE of claim 1, wherein the one or more processors are further configured to:
receive, from the scheduling entity, a BWP configuration message that indicates the complementary BWP;
in response to determining that the indicated complementary BWP is inconsistent with a capability of the UE, at least one of:
communicate with the scheduling entity using the anchor BWP without using the complementary BWP; or
identify one or more configured BWPs that are suitable to be configured as the complementary BWP for communication with the scheduling entity.

### Claim 4 (depends on 1)

The UE of claim 1, wherein the one or more processors are further configured to:
receive, from the scheduling entity, a BWP configuration message that configures the anchor BWP without a complementary BWP configuration;
select the complementary BWP of the anchor BWP based a predetermined rule; and
communicate with the scheduling entity using the anchor BWP and the selected complementary BWP.

### Claim 5 (depends on 4)

The UE of claim 4, wherein the predetermined rule comprises at least one of:
selecting the complementary BWP based on a BWP ID;
selecting the complementary BWP based on a BWP bandwidth;
selecting the complementary BWP based on a power saving of the complementary BWP;
selecting the complementary BWP based on a UE processing load of the complementary BWP;
selecting the complementary BWP based on a bandwidth of the anchor BWP; or
selecting the complementary BWP based on a frequency allocation of the anchor BWP.

### Claim 6 (depends on 1)

The UE of claim 1, wherein the one or more processors are further configured to:
switch between the anchor BWP and the complementary BWP based on a predetermined condition without receiving a BWP switching command from the scheduling entity,
wherein the predetermined condition comprises at least one of:
a slot format of communication between the UE and the scheduling entity; or
a priority of communication between the UE and the scheduling entity.

### Claim 7

A method of wireless communication at a user equipment (UE), comprising:
receiving, from a scheduling entity, a UE capability enquiry message;
transmitting, to the scheduling entity, a UE capability information message in response to the UE capability enquiry message, the UE capability information message comprising bandwidth part (BWP) information of the UE, the BWP information indicating that the UE is capable of using a complementary BWP with a predetermined constraint; and
communicating with the scheduling entity using an anchor BWP and the complementary BWP based on the BWP information,
a first switching time between the anchor BWP and the complementary BWP being shorter than a second switching time between the anchor BWP and a non-complementary BWP.

### Claim 8 (depends on 7)

The method of claim 7, wherein the predetermined constraint comprises at least one of:
a bandwidth constraint of the complementary BWP;
a frequency allocation constraint of the complementary BWP; or
a network configuration constraint of the complementary BWP.

### Claim 9 (depends on 7)

The method of claim 7, further comprising:
receiving, from the scheduling entity, a BWP configuration message that indicates the complementary BWP;
in response to determining that the indicated complementary BWP is inconsistent with a capability of the UE, at least one of:
communicating with the scheduling entity using the anchor BWP without using the complementary BWP; or
identifying one or more configured BWPs that are suitable to be configured as the complementary BWP for communication with the scheduling entity.

### Claim 10 (depends on 7)

The method of claim 7, further comprising:
receiving, from the scheduling entity, a BWP configuration message that configures the anchor BWP without a complementary BWP configuration;
selecting the complementary BWP of the anchor BWP based a predetermined rule; and
communicating with the scheduling entity using the anchor BWP and the selected complementary BWP.

### Claim 11 (depends on 10)

The method of claim 10, wherein the predetermined rule comprises at least one of:
selecting the complementary BWP based on a BWP ID;
selecting the complementary BWP based on a BWP bandwidth;
selecting the complementary BWP based on a power saving of the complementary BWP;
selecting the complementary BWP based on a UE processing load of the complementary BWP;
selecting the complementary BWP based on a bandwidth of the anchor BWP; or
selecting the complementary BWP based on a frequency allocation of the anchor BWP.

### Claim 12 (depends on 7)

The method of claim 7, further comprising:
switching between the anchor BWP and the complementary BWP based on a predetermined condition without receiving a BWP switching command from the scheduling entity,
wherein the predetermined condition comprises at least one of:
a slot format of communication between the UE and the scheduling entity; or
a priority of communication between the UE and the scheduling entity.

### Claim 13

A scheduling entity for wireless communication, comprising:
a transceiver configured to communicate with a user equipment (UE);
a memory; and
one or more processors coupled with the transceiver and the memory,
the one or more processors being configured to:
transmit, to the UE, a UE capability enquiry message;
receive, from the UE, a UE capability information message comprising bandwidth part (BWP) information that indicates a capability of the UE to utilize an anchor BWP and a complementary BWP to communicate with the scheduling entity, the BWP information indicating that the UE is capable of using the complementary BWP with a predetermined constraint, wherein a first switching time between the anchor BWP and the complementary BWP is shorter than a second switching time between the anchor BWP and a non-complementary BWP; and
communicate with the UE using the anchor BWP and the complementary BWP based on the BWP information.

### Claim 14 (depends on 13)

The scheduling entity of claim 13, wherein the predetermined constraint comprises at least one of:
a bandwidth constraint of the complementary BWP;
a frequency allocation constraint of the complementary BWP; or
a network configuration constraint of the complementary BWP.

### Claim 15 (depends on 13)

The scheduling entity of claim 13, wherein the one or more processors are further configured to:
transmit, to the UE, a BWP configuration message that indicates the complementary BWP, wherein the indicated complementary BWP is inconsistent with a capability of the UE; and
communicate with the UE using the anchor BWP without using the complementary BWP.

### Claim 16 (depends on 13)

The scheduling entity of claim 13, wherein the one or more processors are further configured to:
transmit, to the UE, a BWP configuration message that indicates the complementary BWP, wherein the indicated complementary BWP is inconsistent with a capability of the UE; and
communicate with the UE using the anchor BWP and a different complementary BWP not indicated by the BWP configuration message.

### Claim 17 (depends on 13)

The scheduling entity of claim 13, wherein the one or more processors are further configured to:
transmit, to the UE, a BWP configuration message that configures the anchor BWP without a complementary BWP configuration; and
communicate with the UE using the anchor BWP without configuring the complementary BWP.

### Claim 18 (depends on 13)

The scheduling entity of claim 13, wherein the one or more processors are further configured to:
switch between the anchor BWP and the complementary BWP based on a predetermined condition without transmitting a BWP switching command to the UE.

### Claim 19 (depends on 18)

The scheduling entity of claim 18, wherein the predetermined condition comprises at least one of:
a slot format of traffic between the UE and the scheduling entity; or
a priority of traffic between the UE and the scheduling entity.

### Claim 20

A method of wireless communication at a scheduling entity, comprising:
transmitting, to a user equipment (UE), a UE capability enquiry message;
receiving, from the UE, a UE capability information message comprising bandwidth part (BWP) information that indicates a capability of the UE to utilize an anchor BWP and a complementary BWP to communicate with the scheduling entity, the BWP information indicating that the UE is capable of using the complementary BWP with a predetermined constraint, wherein a first switching time between the anchor BWP and the complementary BWP is shorter than a second switching time between the anchor BWP and a non-complementary BWP; and
communicating with the UE using the anchor BWP and the complementary BWP based on the BWP information.

### Claim 21 (depends on 20)

The method of claim 20, wherein the predetermined constraint comprises at least one of:
a bandwidth constraint of the complementary BWP;
a frequency allocation constraint of the complementary BWP; or
a network configuration constraint of the complementary BWP.

### Claim 22 (depends on 20)

The method of claim 20, further comprising:
transmitting, to the UE, a BWP configuration message that indicates the complementary BWP, wherein the indicated complementary BWP is inconsistent with a capability of the UE; and
communicating with the UE using the anchor BWP without using the complementary BWP.

### Claim 23 (depends on 20)

The method of claim 20, further comprising:
transmitting, to the UE, a BWP configuration message that indicates the complementary BWP, wherein the indicated complementary BWP is inconsistent with a capability of the UE; and
communicating with the UE using the anchor BWP and a different complementary BWP not indicated by the BWP configuration message.

### Claim 24 (depends on 20)

The method of claim 20, further comprising:
transmitting, to the UE, a BWP configuration message that configures the anchor BWP without a complementary BWP configuration; and
communicating with the UE using the anchor BWP without configuring the complementary BWP.

### Claim 25 (depends on 20)

The method of claim 20, further comprising:
switching between the anchor BWP and the complementary BWP based on a predetermined condition without transmitting a BWP switching command to the UE.

### Claim 26 (depends on 25)

The method of claim 25, wherein the predetermined condition comprises at least one of:
a slot format of traffic between the UE and the scheduling entity; or
a priority of traffic between the UE and the scheduling entity.