# US 2023/0058058 A1 · Pdcch with preemption indication

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- Number: US 2023/0058058 A1
- Document ID: US20230058058A1
- Status: Published application
- Kind: A1
- Application number: 17/759,301
- Filed: 2020-02-14
- Published: 2023-02-23
- Earliest claimed: 2020-02-14
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Jing DAI; Chao WEI; Jing LEI; Qiaoyu LI; Min HUANG; Hao XU
- Web page: https://patentgrep.com/patent/US20230058058A1

## CPC

- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0012: {Hopping in multicarrier systems}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority}
- H04L 5/0092: {Indication of how the channel is divided}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/044: based on the type of the allocated resource
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

In an aspect, a BS is configured as a serving cell of a UE. The BS transmits data to the UE in accordance with a frequency hopping scheme over a first set of T-F resources of a first BWP and a second set of T-F resources of a second BWP. The BS (or another BS) further transmits, to the UE over a third BWP that is different than the second BWP, a PDCCH including a PI field with a PI associated with the transmitted data over the second set of T-F resources of the second BWP. The UE receives the data and the PDCCH. The UE processes the received data over (at least) the second set of T-F resources based on the PI.

## Claims

### Claim 1

A method of operating a user equipment (UE), comprising:
receiving, in accordance with a frequency hopping scheme, data over a first set of time-frequency (T-F) resources of a first bandwidth part (BWP) and a second set of T-F resources of a second BWP for the UE, wherein the first BWP and the second BWP are associated with the same serving cell;
monitoring, over a third BWP that is different than the second BWP, a Physical Dedicated Control Channel (PDCCH) including a first Preemption Indication (PI) field with a first PI associated with the received data over the second set of T-F resources of the second BWP; and
processing the received data over the second set of T-F resources based on the first PI.

### Claim 2 (depends on 1)

The method of claim 1, wherein the third BWP is the first BWP.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first PI field is configured to indicate whether the first and second sets of T-F resources of the first and second BWPs, respectively, are preempted.

### Claim 4 (depends on 3)

The method of claim 3, wherein the first PI is a common PI that is configured to indicate whether both the first and second sets of T-F resources of the first and second BWPs, respectively are preempted.

### Claim 5 (depends on 3)

The method of claim 3,
wherein the first PI is configured to indicate whether the second set of T-F resources of the second BWP is preempted, and
wherein the first PI field includes a second PI configured to indicate whether the first set of T-F resources of the first BWP is preempted

### Claim 6 (depends on 1)

The method of claim 1, wherein the first PI is configured to indicate whether the second set of T-F resources of the second BWP is preempted.

### Claim 7 (depends on 6)

The method of claim 6, wherein the PDCCH further includes a second PI field with a second PI configured to indicate whether the first set of T-F resources of the first BWP is preempted.

### Claim 8 (depends on 7)

The method of claim 7, wherein the first and second PI fields are adjacent to each other in the downlink control information (DCI) conveyed by the PDCCH.

### Claim 9 (depends on 7)

The method of claim 7, wherein multiple PI fields are associated with the same CC based on the frequency hopping scheme being used with respect to the first and second BWPs.

### Claim 10 (depends on 1)

The method of claim 1,
wherein the first PI field indicates resource preemption based on a first resource granularity, and
wherein a second PI field of the PDCCH indicates resource preemption based on a second resource granularity that is different than the first resource granularity.

### Claim 11 (depends on 1)

The method of claim 1, further comprising:
determining a resource granularity associated with the first PI field based on a common resource granularity associated with a first number of time units, or a second resource granularity that is associated with a second number of time units that is lower than the first number of time units,
wherein the determined resource granularity includes one of:
the first resource granularity whereby an entirety of the first PI field being common to both the first and second sets of T-F resources of the first and second BWPs, respectively are preempted,
a third resource granularity that is associated with the second number of time units whereby the first PI of the first PI field is associated with the second set of T-F resources of the second BWP and a second PI of the first PI field is associated with the first set of T-F resources of the first BWP.

### Claim 12

A method of operating a base station configured as a serving cell of a user equipment (UE), comprising:
transmitting, to a user equipment (UE) in accordance with a frequency hopping scheme, data over a first set of time-frequency (T-F) resources of a first bandwidth part (BWP) and a second set of T-F resources of a second BWP for the UE; and
transmitting, to the UE over a third BWP that is different than the second BWP, a Physical Dedicated Control Channel (PDCCH) including a first Preemption Indication (PI) field with a first PI associated with the transmitted data over the second set of T-F resources of the second BWP.

### Claim 13 (depends on 12)

The method of claim 12, wherein the third BWP is the first BWP.

### Claim 14 (depends on 12)

The method of claim 12, further comprising:
determining whether to preempt the first set of T-F resources of the first BWP, the second set of T-F resources of the second BWP, or a combination thereof,
wherein the first PI field is configured based on the determining.

### Claim 15 (depends on 14)

The method of claim 14, wherein the first PI field is configured to indicate whether the first and second sets of T-F resources of the first and second BWPs, respectively, are preempted.

### Claim 16 (depends on 15)

The method of claim 15, wherein the first PI is a common PI that is configured to indicate whether both the first and second sets of T-F resources of the first and second BWPs, respectively are preempted.

### Claim 17 (depends on 15)

The method of claim 15,
wherein the first PI is configured to indicate whether the second set of T-F resources of the second BWP is preempted, and
wherein the first PI field includes a second PI configured to indicate whether the first set of T-F resources of the first BWP is preempted.

### Claim 18 (depends on 14)

The method of claim 14, wherein the first PI is configured to indicate whether the second set of T-F resources of the second BWP is preempted.

### Claim 19 (depends on 18)

The method of claim 18, wherein the PDCCH further includes a second PI field with a second PI configured to indicate whether the first set of T-F resources of the first BWP is preempted.

### Claim 20 (depends on 19)

The method of claim 19, wherein the first and second PI fields are adjacent to each other in the downlink control information (DCI) conveyed by the PDCCH.

### Claim 21 (depends on 19)

The method of claim 19, multiple PI fields are associated with the same CC based on the frequency hopping scheme being used with respect to the first and second BWPs.

### Claim 22 (depends on 12)

The method of claim 12,
wherein the first PI field indicates resource preemption based on a first resource granularity, and
wherein a second PI field of the PDCCH indicates resource preemption based on a second resource granularity that is different than the first resource granularity.

### Claim 23 (depends on 12)

The method of claim 12, further comprising:
determining a resource granularity associated with the first PI field based on a common resource granularity associated with a first number of time units, or a second resource granularity that is associated with a second number of time units that is lower than the first number of time units,
wherein the determined resource granularity includes one of:
the first resource granularity whereby an entirety of the first PI field being common to both the first and second sets of T-F resources of the first and second BWPs, respectively are preempted,
a third resource granularity that is associated with the second number of time units whereby the first PI of the first PI field is associated with the second set of T-F resources of the second BWP and a second PI of the first PI field is associated with the first set of T-F resources of the first BWP.

### Claim 24

A user equipment (UE), comprising:
means for receiving, in accordance with a frequency hopping scheme, data over a first set of time-frequency (T-F) resources of a first bandwidth part (BWP) and a second set of T-F resources of a second BWP for the UE, wherein the first BWP and the second BWP are associated with the same serving cell;
means for monitoring, over a third BWP that is different than the second BWP, a Physical Dedicated Control Channel (PDCCH) including a first Preemption Indication (PI) field with a first PI associated with the received data over the second set of T-F resources of the second BWP; and
means for processing the received data over the second set of T-F resources based on the first PI.

### Claim 25

A base station configured as a serving cell of a user equipment (UE), comprising:
means for transmitting, to a user equipment (UE) in accordance with a frequency hopping scheme, data over a first set of time-frequency (T-F) resources of a first bandwidth part (BWP) and a second set of T-F resources of a second BWP for the UE; and
means for transmitting, to the UE over a third BWP that is different than the second BWP, a Physical Dedicated Control Channel (PDCCH) including a first Preemption Indication (PI) field with a first PI associated with the transmitted data over the second set of T-F resources of the second BWP.

### Claim 26

A user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and configured to:
receive, in accordance with a frequency hopping scheme, data over a first set of time-frequency (T-F) resources of a first bandwidth part (BWP) and a second set of T-F resources of a second BWP for the UE, wherein the first BWP and the second BWP are associated with the same serving cell;
monitor, over a third BWP that is different than the second BWP, a Physical Dedicated Control Channel (PDCCH) including a first Preemption Indication (PI) field with a first PI associated with the received data over the second set of T-F resources of the second BWP; and
process the received data over the second set of T-F resources based on the first PI.

### Claim 27

A base station configured as a serving cell of a user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and configured to:
transmit, to a user equipment (UE) in accordance with a frequency hopping scheme, data over a first set of time-frequency (T-F) resources of a first bandwidth part (BWP) and a second set of T-F resources of a second BWP for the UE; and
transmit, to the UE over a third BWP that is different than the second BWP, a Physical Dedicated Control Channel (PDCCH) including a first Preemption Indication (PI) field with a first PI associated with the transmitted data over the second set of T-F resources of the second BWP.

### Claim 28

(canceled)

### Claim 29

(canceled)