# US 10,484,992 B2 · Channel reservation for multi-user scheduling

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- Number: US 10,484,992 B2
- Document ID: US10484992B2
- Status: Granted
- Kind: B2
- Application number: 15/791,161
- Filed: 2017-10-23
- Published: 2018-10-11
- Granted: 2019-11-19
- Earliest claimed: 2017-04-05
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Ahmed Kamel Sadek; Tamer Kadous
- Web page: https://patentgrep.com/patent/US10484992B2

## CPC

- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04B 17/309: Measuring or estimating channel quality parameters
- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04W 72/541: using the level of interference
- H04W 72/20: Control channels or signalling for resource management
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

Techniques are described herein to selectively protect some resources of a transmission opportunity, but not all resources of a transmission opportunity. A base station may schedule resources to be used to communicate data with a user equipment (UE). To indicate to potential interference sources, a silencing message may broadcast to other network entities. The silencing message may include an indication of resources to be protected for a transmission between the base station and the UE. The silencing message may indicate a subset of resources that is less than a set of all resources of a transmission opportunity. In some examples, the silencing message may indicate a subset of frequency subbands of the transmission opportunity. In response to the silencing message, potential interference sources may refrain from communicating data during the indicated subset of resources.

## Claims

### Claim 1

A method for wireless communication, comprising:
measuring, by a user equipment (UE), a plurality of signal parameters for a plurality of frequency subbands in a shared radio frequency spectrum band received by the UE;
transmitting, by the UE, a quality message that includes the plurality of signal parameters measured by the UE; and
receiving, by the UE from a base station via the shared radio frequency spectrum band, a targeted preamble that indicates resources to be used by the UE to communicate data, wherein the targeted preamble comprises an instruction configured to silence an interference source during a transmission of data to the UE using the resources, the instruction comprising an indication of the interference source and the identified resources.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
identifying the interference source associated with the UE based at least in part on the plurality of signal parameters.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
transmitting the data using the identified resources.

### Claim 4 (depends on 1)

The method of claim 1, wherein the quality message is a resource response message.

### Claim 5 (depends on 1)

The method of claim 1, wherein the resources include a subset of resources that is less than a set of all resources associated with a transmission opportunity.

### Claim 6 (depends on 1)

The method of claim 1, wherein the resources include a subset of frequency resources that is less than a set of all frequency resources associated with a transmission opportunity.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
another UE is scheduled to use at least a portion of resources associated with a transmission opportunity, wherein the portion of resources are different from the resources of the transmission opportunity used by the UE to receive data.

### Claim 8

A method for wireless communication, comprising:
receiving, by a user equipment (UE), a resource request message from a base station;
identifying, by the UE, a subset of resources of a transmission opportunity included in the resource request message to be used for receiving data from the base station;
broadcasting, by the UE, a resource response message to a potential interference source indicating the subset of resources to be used for receiving data from the base station; and
receiving, by the UE, data from the base station using the subset of resources.

### Claim 9 (depends on 8)

The method of claim 8, wherein the resource response message includes a subset of frequency resources of the transmission opportunity for communication with the base station.

### Claim 10 (depends on 8)

The method of claim 8, further comprising:
determining a bitmap value of the subset of resources, wherein the resource response message includes the bitmap value indicating the subset of resources.

### Claim 11 (depends on 8)

The method of claim 8, wherein the subset of resources is less than a set of all resources associated with the transmission opportunity.

### Claim 12 (depends on 8)

The method of claim 8, wherein another UE is scheduled to use at least a portion of resources associated with the transmission opportunity, wherein the portion of resources are different from the resources of the transmission opportunity used by the UE to receive data.

### Claim 13 (depends on 8)

The method of claim 8, wherein the subset of resources included in the resource response message indicate a subset of frequency resources different from frequency resources used to broadcast the resource response message.

### Claim 14

A method for wireless communication, comprising:
receiving, by a network entity, a resource response message from a user equipment (UE);
identifying a subset of frequency resources of a transmission opportunity included in the resource response message to be used by the UE to communicate data, wherein the subset of frequency resources is less than a set of all resources associated with the transmission opportunity;
comparing the subset of frequency resources to scheduled resource to be used by the network entity to communicate data; and
refraining, based at least in part on the subset of frequency resources overlapping with the scheduled resources, from transmitting data using the subset of frequency resources included in the resource response message.

### Claim 15 (depends on 14)

The method of claim 14, further comprising:
determining a bitmap value from information included in the resource response message, wherein identifying the subset of frequency resources is based at least in part on the bitmap value.

### Claim 16 (depends on 14)

The method of claim 14, wherein the network entity is scheduled to use at least a portion of frequency resources associated with the transmission opportunity, wherein the portion of frequency resources are different from the resources of the transmission opportunity used by the UE to receive data.

### Claim 17

An apparatus for wireless communication, comprising:
a processor;
memory in electronic communication with the processor; and
instructions stored in the memory, wherein the instructions are executable by the processor to:
receive, by a user equipment (UE), a resource request message from a base station;
identify, by the UE, a subset of resources of a transmission opportunity included in the resource request message to be used for receiving data from the base station;
broadcast, by the UE, a resource response message to a potential interference source indicating the subset of resources to be used for receiving data from the base station; and
receive data from the base station using the subset of resources.

### Claim 18 (depends on 17)

The apparatus of claim 17, wherein the resource response message includes a subset of frequency resources of the transmission opportunity for communication with the base station.

### Claim 19 (depends on 17)

The apparatus of claim 17, wherein the instructions are further executable by the processor to:
determine a bitmap value of the subset of resources, wherein the resource response message includes the bitmap value indicating the subset of resources.

### Claim 20 (depends on 17)

The apparatus of claim 17, wherein:
the subset of resources is less than a set of all resources associated with the transmission opportunity.

### Claim 21 (depends on 17)

The apparatus of claim 17, wherein:
another UE is scheduled to use at least a portion of resources associated with the transmission opportunity, wherein the portion of resources are different from the resources of the transmission opportunity used by the UE to receive data.

### Claim 22 (depends on 17)

The apparatus of claim 17, wherein:
the subset of resources included in the resource response message indicate a subset of frequency resources different from frequency resources used to broadcast the resource response message.
