Search

KR-20260066816-A - COMMUNICATION METHOD AND APPARATUS

KR20260066816AKR 20260066816 AKR20260066816 AKR 20260066816AKR-20260066816-A

Abstract

Embodiments of the present application provide a communication method and apparatus to address the technical problem that more features and functions cannot be supported in the 802.11be standard or future Wi-Fi standards when the HLA control subfield continues to be used, and relate to the field of such communication technologies. The method comprises: a first communication device generates a PPDU and transmits the PPDU to a second communication device. The PPDU includes a first field having a bit quantity of 26, the first field including an unsolicited MFB subfield having a bit quantity of 1 and first indication information having a bit quantity of 1. When the value of the unsolicited MFB subfield is a first value, the first indication information indicates MRQ; or when the value of the unsolicited MFB subfield is a second value, the first indication information indicates UL EHT TB PPDU MFB.

Inventors

  • 궁, 보
  • 위, 젠
  • 류, 천천
  • 간, 밍

Assignees

  • 후아웨이 테크놀러지 컴퍼니 리미티드

Dates

Publication Date
20260512
Application Date
20220516
Priority Date
20210520

Claims (11)

  1. As a method of communication, A step of generating a physical layer protocol data unit (PPDU) by a first communication device, wherein the PPDU includes a first field having a bit quantity of 26, the first field including an unsolicited modulation and coding scheme feedback (MFB) subfield having a bit quantity of 1 and first indication information having a bit quantity of 1; when the value of the unsolicited MFB subfield is a first value, the first indication information indicates a modulation and coding scheme request (MRQ); and when the value of the unsolicited MFB subfield is a second value, the first indication information indicates an uplink extremely high throughput trigger-based PPDU modulation and coding scheme feedback (UL EHT TB PPDU MFB) -; and The step of transmitting the PPDU to the second communication device by the first communication device. A communication method including
  2. As a method of communication, A step of receiving a Physical Layer Protocol Data Unit (PPDU) from a first communication device by a second communication device, wherein the PPDU comprises a first field having a bit quantity of 26, the first field comprising an Unsolicited Modulation and Coding Scheme Feedback (MFB) subfield having a bit quantity of 1 and first indication information having a bit quantity of 1; when the value of the Unsolicited MFB subfield is a first value, the first indication information indicates a Modulation and Coding Scheme Request (MRQ); and when the value of the Unsolicited MFB subfield is a second value, the first indication information indicates an Uplink Extremely High Throughput Trigger-Based PPDU Modulation and Coding Scheme Feedback (UL EHT TB PPDU MFB) -; and A step of parsing the PPDU by the second communication device A communication method including
  3. As a first communication device, A processing module configured to generate a Physical Layer Protocol Data Unit (PPDU)—the PPDU comprises a first field having a bit quantity of 26, said first field comprising an unsolicited Modulation and Coding Scheme Feedback (MFB) subfield having a bit quantity of 1 and first indication information having a bit quantity of 1; when the value of said unsolicited MFB subfield is a first value, said first indication information indicates a Modulation and Coding Scheme Request (MRQ); and when the value of said unsolicited MFB subfield is a second value, said first indication information indicates an Uplink Extremely High Throughput Trigger-Based PPDU Modulation and Coding Scheme Feedback (UL EHT TB PPDU MFB)—; and A transceiver module configured to transmit the above PPDU to a second communication device A communication device including
  4. As a second communication device, A transceiver module configured to receive a Physical Layer Protocol Data Unit (PPDU) from a first communication device, wherein the PPDU includes a first field having a bit quantity of 26, the first field including an unsolicited modulation and coding scheme feedback (MFB) subfield having a bit quantity of 1 and a first indication information having a bit quantity of 1; when the value of the unsolicited MFB subfield is a first value, the first indication information indicates a modulation and coding scheme request (MRQ); and when the value of the unsolicited MFB subfield is a second value, the first indication information indicates an uplink ultra-high throughput trigger-based PPDU modulation and coding scheme feedback (UL EHT TB PPDU MFB) -; and A processing module configured to parse the above PPDU A communication device including
  5. In paragraph 1 or 2, A communication method in which, when the value of the above-mentioned non-requested MFB subfield is 0, the first indication information indicates whether solicited feedback is used, and when the value of the above-mentioned non-requested MFB subfield is 1, the first indication information indicates whether the information provided in the first field is used for a UL TB PPDU.
  6. As a method of communication, A step of generating a physical layer protocol data unit (PPDU) by a first communication device, wherein the PPDU comprises a first field having a bit quantity of 26, and the first field comprises second indication information; wherein the second indication information indicates that the first field corresponds to single-user multiple-input multiple-output (SU-MIMO) or the second indication information indicates that the first field corresponds to multi-user multiple-input multiple-output (MU-MIMO) -; and The step of transmitting the PPDU to the second communication device by the first communication device. A communication method including
  7. As a method of communication, A step of receiving a physical layer protocol data unit (PPDU) from a first communication device by a second communication device, wherein the PPDU comprises a first field having a bit quantity of 26, and the first field comprises second indication information; wherein the second indication information indicates that the first field corresponds to single-user multiple-input multiple-output (SU-MIMO) or the second indication information indicates that the first field corresponds to multi-user multiple-input multiple-output (MU-MIMO) A step of parsing the PPDU by the second communication device A communication method including
  8. As a first communication device, A processing module configured to generate a Physical Layer Protocol Data Unit (PPDU)—the PPDU comprises a first field having a bit quantity of 26, said first field comprises second indication information; said second indication information indicates that said first field corresponds to single-user multiple-input multiple-output (SU-MIMO) or said second indication information indicates that said first field corresponds to multi-user multiple-input multiple-output (MU-MIMO)—; and A transceiver module configured to transmit the above PPDU to a second communication device A communication device including
  9. As a second communication device, A transceiver module configured to receive a physical layer protocol data unit (PPDU) from a first communication device, wherein the PPDU includes a first field having a bit quantity of 26, and the first field includes second indication information; wherein the second indication information indicates that the first field corresponds to single-user multiple-input multiple-output (SU-MIMO) or the second indication information indicates that the first field corresponds to multi-user multiple-input multiple-output (MU-MIMO) -; and A processing unit configured to parse the above PPDU A communication device including
  10. As a method or apparatus according to any one of paragraphs 6 through 9, The first field further includes a number of spatial streams (NSS) subfield with a bit quantity of 3 or more; A method or apparatus in which, when the second indication information indicates that the first field corresponds to the SU-MIMO, the maximum number of spatial streams indicated by the NSS subfield is 16; or, when the second indication information indicates that the first field corresponds to the MU-MIMO, the maximum number of spatial streams indicated by the NSS subfield is 4.
  11. As a method or apparatus according to any one of paragraphs 1 through 10, The first field further includes an extremely high throughput modulation and coding scheme (EHT-MCS) subfield having a bit quantity of 4; or A method or apparatus wherein the first field further comprises a signal-to-noise ratio (SNR) subfield having a bit quantity of 6.

Description

Communication Method and Apparatus This application claims priority to Chinese patent application No. 202110554343.2, filed with the Chinese Intellectual Property Office on May 20, 2021, with the title of the invention "COMMUNICATION METHOD AND APPARATUS", the entirety of which is incorporated herein by reference. Technology field This application relates to the field of communication technology, and in particular, to communication methods and devices. Existing wireless local area network (WLAN) communication systems have progressed through multiple generations of standards starting from the 802.11a/b/g standards, such as the 802.11n, 802.11ac, 802.11ax, and 802.11be standards. Based on the aforementioned standards, communication devices can communicate with each other using physical layer protocol data units (PPDUs). A PPDU may include a medium access control protocol data unit (MPDU). For example, in the 802.11ax standard, an MPDU may include a high throughput (HT) control field, and the HT control field may include one or more control identifiers and control information corresponding to each control identifier. When the value of the control identifier is 2, the control information may be a 26-bit High Efficiency Link Adaptation (HLA) control subfield. The HLA control subfield may include a 3-bit number of spatial streams (NSS) subfield, a 2-bit bandwidth (BW) subfield, and other subfields. Due to the continuous evolution of standards, the 802.11be standard or future wireless fidelity (Wi-Fi) standards can support more features and functions compared to the 802.11ax standard. However, in the 802.11ax standard, the bit quantity and meaning of each subfield of the HLA control subfield are predefined. If the HLA control subfield continues to be used, it cannot support more features and functions. Therefore, properly designing the Link Adaptation Control subfield to correspond to the 802.11be standard or future Wi-Fi standards is a technical issue that must be urgently resolved. FIG. 1 is a schematic diagram of SU-MIMO according to an embodiment of the present application. FIG. 2 is a schematic diagram of MU-MIMO according to an embodiment of the present application. FIG. 3 is a schematic diagram of the structure of an MPDU frame according to an embodiment of the present application. FIG. 4 is a schematic diagram of the structure of an A-control subfield frame according to an embodiment of the present application. FIG. 5 is a schematic diagram of the structure of an HLA control subfield frame according to one embodiment of the present application. FIG. 6 is a schematic diagram of a communication system according to an embodiment of the present application. FIG. 7 is a diagram of the configuration structure of a communication device according to an embodiment of the present application. FIG. 8 is a diagram of the configuration structure of a communication device according to an embodiment of the present application. FIG. 9 is a flowchart of a communication method according to an embodiment of the present application. FIG. 10 is a schematic diagram of a 20 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 11 is a schematic diagram of a 20 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 12 is a schematic diagram of a 20 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 13 is a schematic diagram of a 40 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 14 is a schematic diagram of a 40 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 15 is a schematic diagram of a 40 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 16 is a schematic diagram of an 80 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 17 is a schematic diagram of an 80 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 18 is a schematic diagram of an 80 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 19 is a schematic diagram of an 80 MHz tone plan and an RU plan according to an embodiment of the present application. FIG. 20 is a schematic diagram of a 160 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 21 is a schematic diagram of a 160 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 22 is a schematic diagram of a 320 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 23 is a schematic diagram of a 320 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 24 is a schematic diagram of a 320 MHz tone plan and RU plan according to an embodiment of the present application. FIG. 25 is a schematic diagram of the structure of a first field frame according to an embodiment