BR-122025009986-A2 - METHOD OF COMMUNICATION AND COMMUNICATION DEVICE

BR122025009986A2BR 122025009986 A2BR122025009986 A2BR 122025009986A2BR-122025009986-A2

Abstract

This application provides a method of communication and a communication device. First control information carries two fields, and the two fields are each used to indicate a channel state of a subchannel in a channel segment, or to indicate a channel state of a channel with a higher bandwidth. The method includes: A first device generates first control information, wherein the first control information includes a first field and a second field; the first field is used to indicate a channel state of a first subchannel in a first channel segment, and the second field is used to indicate a channel state of a second subchannel in a second channel segment; and the first device sends the first control information to a second device.

Inventors

Yunbo Li
Jian Yu
Yuchen Guo

Assignees

HUAWEI TECHNOLOGIES CO., LTD

Dates

Publication Date: 20260310
Application Date: 20210422
Priority Date: 20200427

Claims (9)

1. A communication method, characterized by the fact that it comprises: receiving, by a second device, initial control information from a first device, wherein the initial control information comprises a first field and a second field, the first field being used to indicate a channel state of a first subchannel in a first channel segment, and the second field being used to indicate a channel state of a second subchannel in a second channel segment; and determining, by the second device, the channel state of the first subchannel and the channel state of the second subchannel.
2. Method according to claim 1, CHARACTERIZED in that the first field is used to indicate a channel state of a first subchannel in a first channel segment comprising: a first bitmap in the first field is used to indicate a channel state of each first subchannel in the first channel segment; and the second field is used to indicate a channel state of a second subchannel in a second channel segment comprising: a second bitmap in the second field is used to indicate a channel state of each second subchannel in the second channel segment.
3. Method, according to claim 1 or 2, CHARACTERIZED in that the first control information is a control subfield - A; the first field and the second field are bandwidth query report (BQR) control subfields.
4. A method, according to any one of claims 1 to 3, characterized in that the bandwidth of the first channel segment is 160 MHz, and the bandwidth of the second channel segment is 160 MHz.
5. Communication method, CHARACTERIZED by the fact that it comprises: receiving, by a second device, initial control information from a first device, wherein a first bitmap in the initial control information is used to indicate a channel state of a first subchannel in a first channel segment, and a first bit in the initial control information is used to indicate a channel state of a second channel segment; and determining, by the second device, the channel state of the first subchannel and the channel state of the second subchannel.
6. Method according to claim 5, CHARACTERIZED in that a second bit in the first control information is used to indicate the first channel segment.
7. A method according to claim 5 or 6, characterized in that a first bit is used to indicate a channel state of a second channel segment, comprises: a value of the first bit is a first value, and the first value indicates that a channel state of a subchannel in the second channel segment is available; or a value of the first bit is a second value, and the second value indicates that a channel state of a subchannel in the second channel segment is busy or unavailable.
8. Communication apparatus, CHARACTERIZED in that it comprises a processor and a transceiver, wherein the transceiver is configured to: receive a signal from another communication apparatus other than the communication apparatus and transmit the signal to the processor, or send a signal from the processor to another communication apparatus other than the communication apparatus; and the processor is configured to implement the method as defined in any one of claims 1 to 7 using a logic circuit or executing code instructions.
9. Computer-readable storage media, CHARACTERIZED in that the storage media stores a program or instructions, and when the program or instructions is/are run, the method as defined in any one of claims 1 to 7 is implemented.

Description

[0001] This application claims priority to Chinese Patent Application No. 202010346204.6, filed with the National Intellectual Property Administration of China on April 27, 2020, and entitled “COMMUNICATION METHOD AND COMMUNICATION APPARATUS”, which is incorporated herein by reference in its entirety. FIELD OF TECHNIQUE [0002] This application relates to the field of communication and, in particular, to a method of communication and a communication device. FUNDAMENTALS [0003] IEEE 802.11 is one of the major wireless access standards and has been widely used in commercial applications over the last decade. An access point (AP) accesses the Internet in a wired or wireless manner; the AP is associated with a plurality of stations, and uplink and downlink communication is performed between the AP and the associated stations using the IEEE 802.11 protocol. The station can report a busy/available channel status to the AP. [0004] In the IEEE 802.11a standard, only a bandwidth of 20 MHz is supported. The supported bandwidth has been continuously increasing with the evolution to subsequent standards. In the IEEE 802.11n standard, a maximum bandwidth of 40 MHz is supported, and in the IEEE 802.11ac/ax standard, a maximum bandwidth of 160 MHz is supported. In the IEEE 11be standard, the maximum bandwidth is extended to 320 MHz. [0005] Currently, a technology in which a station reports a channel state to an AP supports reporting a channel state of a channel with a maximum bandwidth of 160 MHz, and cannot indicate a channel state of a channel with a higher bandwidth. SUMMARY [0006] This application provides a method of communication and a communication device, for indicating a channel state of a channel with a higher bandwidth, in order to satisfy a higher bandwidth communication requirement. [0007] According to a first aspect, a communication method is provided, including: a first device (which may alternatively be a module or a chip in the first device) generates first control information, wherein the first control information includes a first field and a second field, the first field being used to indicate a channel state of a first subchannel in a first channel segment, and the second field being used to indicate a channel state of a second subchannel in a second channel segment; and the first device sends the first control information to a second device. In an embodiment of this application, the first control information carries both fields, and the two fields are each used to indicate a channel state of a subchannel in a channel segment, to indicate a channel state of a channel with a higher bandwidth. [0008] Optionally, the first field is used to indicate a channel state of a first subchannel in a first channel segment, which includes: A first bitmap, in the first field, is used to indicate a channel state of each first subchannel in the first channel segment; and, the second field is used to indicate a channel state of a second subchannel in a second channel segment, which includes: A second bitmap, in the second field, is used to indicate a channel state of each second subchannel in the second channel segment. [0009] According to a second aspect, a communication method is provided, including: A second device receives first control information from a first device, wherein the first control information includes a first field and a second field, the first field being used to indicate a channel state of a first subchannel in a first channel segment, and the second field being used to indicate a channel state of a second subchannel in a second channel segment; and determines channel state information of each channel based on the first control information. In one embodiment of this application, the first control information carries both fields, and the two fields are each used to indicate a channel state of a subchannel in a channel segment, to indicate a channel state of a channel with a higher bandwidth. [0010] The related description of the first field and the second field is the same as that in the first aspect. For details, see the first aspect. [0011] A process in which the second device determines the channel state is a reverse process of the first device's behavior in the first aspect. The second device can learn, based on the first control information, about a channel state of each subchannel in the first channel segment and a channel state of each subchannel in the second channel segment, which are reported by the first device. [0012] According to a third aspect, a communication method is provided, including: A first device generates first control information, wherein a first bitmap, in the first control information, is used to indicate a channel state of a first subchannel in a first channel segment, and a first bit, in the first control information, is used to indicate a channel state of a second channel segment; and the first device sends the first control information to a second device. In an embodiment