# US 12,114,295 B2 · WLAN system resource indication method and apparatus

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- Number: US 12,114,295 B2
- Document ID: US12114295B2
- Status: Granted
- Kind: B2
- Application number: 18/485,213
- Filed: 2023-10-11
- Published: 2024-04-04
- Granted: 2024-10-08
- Earliest claimed: 2015-04-30
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Jun Luo; Jiayin Zhang; Jiyong Pang
- Web page: https://patentgrep.com/patent/US12114295B2

## CPC

- H04W 72/044: based on the type of the allocated resource
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/003: {Arrangements for allocating sub-channels of the transmission path}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/04: Wireless resource allocation
- H04B 7/0617: {for beam forming}
- H04B 7/0669: {using different channel coding between antennas (space-time coding H04L1/0618)}
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W 88/08: Access point devices
- Y02D 30/70: in wireless communication networks
- 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)
- H04B: TRANSMISSION
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A WLAN system resource indication method and apparatus are provided. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.

## Claims

### Claim 1

A WLAN system resource indication method, comprising:
receiving, by a station, a trigger frame carrying resource indication information, the resource indication information comprising multiple pieces of sub resource indication information, each piece of the sub resource indication information comprising:
an identifier and frequency domain resource allocation information of one station;
the frequency domain resource allocation information comprising a first portion indicating an 80 MHz segment in which a frequency domain resource unit (RU) is located, the 80 MHz segment being one of multiple 80 MHz segments of a bandwidth of the WLAN system; and
the frequency domain resource allocation information further comprising a second portion indicating a size and a location of the RU in the 80 MHz segment indicated by the first portion.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the second portion is one of multiple values, wherein the multiple values comprising:
0-36, each of which indicates a RU of 26 tones allocated to the one station;
37-52, each of which indicates a RU of 52 tones allocated to the one station;
53-60, each of which indicates a RU of 106 tones allocated to the one station;
61-64, each of which indicates a RU of 242 tones allocated to the one station; and
65-66, each of which indicates a RU of 484 tones allocated to the one station.

### Claim 3 (depends on 2)

The method according to claim 2, wherein when the bandwidth of the WLAN system is 160 MHz or 80+80 MHz, the multiple values further comprising:
a value indicating the RU of all tones allocated to the one station, and the value is one of 68-127.

### Claim 4 (depends on 1)

The method according to claim 1, wherein a length of the second portion is 7 bits.

### Claim 5 (depends on 1)

The method according to claim 1, wherein when the bandwidth of the WLAN system is 80 MHz, 160 MHz, or 80+80 MHz, the sizes of the RUs comprise 26 tones, 52 tones, 106 tones, 242 tones, 484 tones, or 996 tones.

### Claim 6

An apparatus, comprising:
an interface;
a memory storing instructions; and
at least one processor in communication with the memory, the at least one processor configured, upon execution of the instructions, to perform the following steps:
receive a trigger frame carrying resource indication information, the resource indication information comprising multiple pieces of sub resource indication information, each piece of the sub resource indication information comprising:
an identifier and frequency domain resource allocation information of one station;
the frequency domain resource allocation information comprising a first portion indicating an 80 MHz in which a frequency domain resource unit (RU) is located, the 80 MHz segment being one of multiple 80 MHz segments of a bandwidth of the WLAN system; and
the frequency domain resource allocation information further comprising a second portion indicating a size and a location of the RU in the 80 MHz segment indicated by the first portion.

### Claim 7 (depends on 6)

The apparatus according to claim 6, wherein the second portion is one of multiple values, wherein the multiple values comprising:
0-36, each of which indicates a RU of 26 tones allocated to the one station;
37-52, each of which indicates a RU of 52 tones allocated to the one station;
53-60, each of which indicates a RU of 106 tones allocated to the one station;
61-64, each of which indicates a RU of 242 tones allocated to the one station; and
65-66, each of which indicates a RU of 484 tones allocated to the one station.

### Claim 8 (depends on 7)

The apparatus according to claim 7, wherein when the bandwidth of the WLAN system is 160 MHz or 80+80 MHz, the multiple values further comprising:
a value indicating the RU of all tones allocated to the one station, and the value is one of the 68-127 values.

### Claim 9 (depends on 6)

The apparatus according to claim 6, wherein a length of the second portion is 7 bits.

### Claim 10 (depends on 6)

The apparatus according to claim 6, wherein when the bandwidth of the WLAN system is 80 MHz, 160 MHz, or 80+80 MHz, the sizes of the RUs comprise 26 tones, 52 tones, 106 tones, 242 tones, 484 tones, or 996 tones.

### Claim 11

A non-transitory computer-readable media storing computer instructions, that when executed by one or more processors, cause the one or more processors to perform the steps of:
receiving a trigger frame carrying resource indication information, the resource indication information comprising multiple information pieces of sub resource indication information, each piece of the sub resource indication information comprising:
an identifier and frequency domain resource allocation information of one station;
the frequency domain resource allocation information comprising a first portion indicating an 80 MHz segment in which a frequency domain resource unit (RU) is located, the 80 MHz segment being one of multiple 80 MHz segments of a bandwidth of the WLAN system; and
the frequency domain resource allocation information further comprising a second portion indicating a size and a location of the RU in the 80 MHz segment indicated by the first portion.

### Claim 12 (depends on 11)

The computer-readable media according to claim 11, wherein the second portion is one of multiple values, wherein the multiple values comprising:
0-36, each of which indicates a RU of 26 tones allocated to the one station;
37-52, each of which indicates a RU of 52 tones allocated to the one station;
53-60, each of which indicates a RU of 106 tones allocated to the one station;
61-64, each of which indicates a RU of 242 tones allocated to the one station; and
65-66, each of which indicates a RU of 484 tones allocated to the one station.

### Claim 13 (depends on 12)

The computer-readable media according to claim 12, wherein when the bandwidth of the WLAN system is 160 MHz or 80+80 MHz, the multiple values further comprising:
a value indicating the RU of all tones allocated to the one station, and the value is one of the 68-127 values.

### Claim 14 (depends on 11)

The computer-readable media according to claim 11, wherein a length of the second portion is 7 bits.

### Claim 15 (depends on 11)

The computer-readable media according to claim 11, wherein when the bandwidth of the WLAN system is 80 MHz, 160 MHz, or 80+80 MHz, the sizes of the RUs comprise 26 tones, 52 tones, 106 tones, 242 tones, 484 tones, or 996 tones.