Search

KR-102961928-B1 - Communication method and device

KR102961928B1KR 102961928 B1KR102961928 B1KR 102961928B1KR-102961928-B1

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
20260508
Application Date
20220516
Priority Date
20210520

Claims (20)

  1. As a method of communication, A step of generating a Physical Layer Protocol Data Unit (PPDU) by a first communication device—the PPDU comprises a first field having a bit quantity of 26, wherein the first field comprises 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 ultra-high throughput trigger-based PPDU modulation and coding scheme feedback (UL EHT TB PPDU MFB)—; and A communication method comprising the step of transmitting the PPDU to a second communication device by the first communication device.
  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—the PPDU comprises a first field having a bit quantity of 26, wherein the first field comprises 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 ultra-high throughput trigger-based PPDU modulation and coding scheme feedback (UL EHT TB PPDU MFB)—; and A communication method comprising the step of parsing the PPDU by the second communication device.
  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, wherein the first field comprises 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 ultra-high throughput trigger-based PPDU modulation and coding scheme feedback (UL EHT TB PPDU MFB)—; and A communication device comprising a transceiver module configured to transmit the above PPDU to a second communication device.
  4. As a second communication device, A transceiver module configured to receive a Physical Layer Protocol Data Unit (PPDU) from a first communication device—the PPDU comprises a first field having a bit quantity of 26, wherein the first field comprises 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 communication device comprising a processing module configured to parse the above PPDU.
  5. In paragraph 1 or 2, A communication method in which, when the value of the above non-request MFB subfield is 0, the first indication information indicates whether request feedback is used, and when the value of the above non-request MFB subfield is 1, the first indication information indicates whether the information provided in the first field is used for UL TB PPDU.
  6. In paragraph 1 or 2, A communication method in which the first field further includes a space stream number (NSS) subfield having a bit quantity of 3 or more.
  7. In paragraph 1 or 2, A communication method in which the first field further includes an ultra-high throughput modulation and coding scheme (EHT-MCS) subfield having a bit quantity of 4.
  8. In paragraph 1 or 2, A communication method in which the first field further includes a resource unit allocation subfield, and the number of bits of the resource unit allocation subfield is 8.
  9. In paragraph 1 or 2, A communication method in which the first field further includes a bandwidth (BW) subfield having a bit quantity of 3.
  10. In paragraph 1 or 2, A communication method wherein the first field further includes a fourth display information having a bit quantity of 1, and the fourth display information indicates that the first field is an Extreme High Throughput Link Adaptation (EHT LA) control subfield, or the fourth display information indicates that the first field is a High Efficiency (HE) LA control subfield.
  11. In paragraph 1 or 2, A communication method in which the first field further includes a Tx beamforming subfield having a bit quantity of 1.
  12. In paragraph 1 or 2, A communication method in which the above PPDU further includes a control identifier field corresponding to the first field, and the value of the control identifier field is 2.
  13. A communication device comprising a processor and a memory, wherein the memory is coupled to the processor and the memory is configured to store computer programs or instructions, and the processor is configured to execute the computer programs or instructions so as to perform a communication method according to claim 1 or 2.
  14. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions or programs, and is configured to enable a communication method according to claim 1 or 2 to be performed when the computer instructions or programs are executed on a computer.
  15. delete
  16. delete
  17. delete
  18. delete
  19. delete
  20. delete

Description

Communication method and device 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 of