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US-20260129513-A1 - COMMUNICATION METHOD AND RELATED DEVICE

US20260129513A1US 20260129513 A1US20260129513 A1US 20260129513A1US-20260129513-A1

Abstract

The present application applies to a wireless personal local network system based on ultra-wide band communication technology, a communication system based on ZigBee, a communication system based on IEEE 802.15.4 protocol. Embodiments of the present application provide a communication method, including: receiving a first protocol data unit (PPDU), where the first PPDU includes type instruction information, where the type instruction information is configured to indicate whether the first PPDU carries a compressed PHY (physical layer) service data unit (PSDU); and processing the information carried by the payload field of the first PPDU. According to the above-mentioned technical solution, the compressed PSDU may be identified according to the type instruction information carried by the PPDU. Therefore, a receiver of the PPDU may process the received PPDU according to the type instruction information.

Inventors

  • Rojan CHITRAKAR
  • Lei Huang
  • Yunbo Li
  • Xun Yang

Assignees

  • HUAWEI TECHNOLOGIES CO., LTD.

Dates

Publication Date
20260507
Application Date
20260103

Claims (20)

  1. 1 . A communication method, comprising: receiving a physical layer (PHY) protocol data unit (PPDU), wherein the PPDU comprises type instruction information indicating whether the PPDU carries a compressed physical layer (PHY) service data unit (PSDU); and processing the information carried by the received PPDU.
  2. 2 . The method according to claim 1 , wherein the type instruction information is carried by a payload field of the PPDU.
  3. 3 . The method according to claim 1 , wherein the type instruction information occupies N bits within the payload of the PPDU, N is a positive integer, when a value of the N bits of the payload field of the PPDU is a first preset value, the PPDU carries the compressed PSDU.
  4. 4 . The method according to claim 1 , wherein a payload field of the PPDU comprises a first 3-bit field indicating the type instruction information and a second 5-bit field indicating a type of information carried by the compressed PSDU.
  5. 5 . The method according to claim 3 , wherein the first preset value is 100.
  6. 6 . The method according to claim 1 , wherein the PPDU comprises a message control field, and the message control field comprises a common information (info) field, a ultra-wideband access point (UWB AP) info field, and UWB Per-Session Info(s) field.
  7. 7 . The method according to claim 6 , wherein the common info field comprises a narrowband (NB) AP Type field, a UWB AP Present field, a Type of UWB Per-Session Info field and a Next NB AP field.
  8. 8 . A communication method, comprising: generating a physical layer (PHY) protocol data unit (PPDU); transmitting the PPDU, wherein the PPDU comprises type instruction information indicating whether the PPDU carries a compressed PHY service data unit (PSDU).
  9. 9 . The method according to claim 8 , wherein the type instruction information is carried by a payload field of the PPDU.
  10. 10 . The method according to claim 8 , wherein the type instruction information occupies N bits within the payload of the PPDU, N is a positive integer, when a value of the N bits of the payload field of the PPDU is a first preset value, the PPDU carries the compressed PSDU.
  11. 11 . The method according to claim 9 , wherein a payload field of the PPDU comprises a first 3-bit field indicating the type instruction information, and a second 5-bit field indicating a type of information carried by the compressed PSDU.
  12. 12 . The method according to claim 10 , wherein the first preset value is 100.
  13. 13 . The method according to claim 8 , wherein the PPDU comprises a message control field, and the message control field comprises a common information (info) field, a ultra-wideband access point (UWB AP) info field, and UWB Per-Session Info(s) field.
  14. 14 . The method according to claim 13 , wherein the common info field comprises a narrowband (NB) AP Type field, a UWB AP Present field, a Type of UWB Per-Session Info field and a Next NB AP field.
  15. 15 . A communication apparatus, comprising: a processor, configured to execute the instructions stored in a memory, to cause the communication apparatus to perform the operations: receiving a physical layer (PHY) protocol data unit (PPDU), wherein the PPDU comprises type instruction information indicating whether the PPDU carries a compressed PHY service data unit (PSDU); and processing the information carried by the received PPDU.
  16. 16 . The communication apparatus according to claim 15 , wherein the type instruction information occupies N bits within the payload of the PPDU, N is a positive integer, when a value of the N bits of the payload field of the PPDU is a first preset value, the PPDU carries the compressed PSDU, wherein the first preset value is 100.
  17. 17 . The communication apparatus according to claim 15 , wherein the PPDU comprises a message control field, and the message control field comprises a common information (info) field, a ultra-wideband access point (UWB AP) info field, and UWB Per-Session Info(s) field.
  18. 18 . The communication apparatus according to claim 17 , wherein the common info field comprises a narrowband (NB) AP Type field, a UWB AP Present field, a Type of UWB Per-Session Info field and a Next NB AP field.
  19. 19 . A communication apparatus, comprising: a processor, configured to execute the instructions stored in a memory, to cause the communication apparatus to perform the operations: generating a physical layer (PHY) data unit (PPDU); transmitting the PPDU, wherein the PPDU comprises type instruction information indicating whether the PPDU carries a compressed PHY service data unit (PSDU).
  20. 20 . The communication apparatus according to claim 19 , wherein the type instruction information occupies N bits within the payload of the PPDU, N is a positive integer, when a value of the N bits of the payload field of the PPDU is a first preset value, the PPDU carries the compressed PSDU, wherein the first preset value is 100.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2023/106440, filed on Jul. 7, 2023, the disclosure of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD Embodiments of the present application relate to the field of communication technologies, and more specifically, to a communication method and related devices. BACKGROUND Ultra-wideband (UWB) technology is increasingly being used for indoor positioning and other location services such as access control and asset locating. Aside from dedicated devices and tags, UWB radios are becoming increasingly common in terminal devices. The UWB physical layer (PHY) and medium access control (MAC) are standardized by the Institute of Electrical and Electronics Engineers (IEEE). Aside from the traditional ranging use case, other use cases such as device-free sensing, downlink time difference of arrival (DL-TDOA), long-range ranging, etc. are being actively investigated. To address the long-range ranging use case, UWB Multi-millisecond (MMS) ranging has been introduced. The key idea behind MMS ranging is to distribute the UWB ranging frames into multiple fragments and the fragment being transmitted across multiple milliseconds (ms), thereby overcoming the emitted energy limit of 37 nJ per ms. The MMS ranging may be further enhanced by a high-performance narrowband (NB) radio which is used to provide time synchronization for the UWB radio and is also used for control signaling. In MMS ranging, the number of fragments required for the ranging depends on the range to be measured as well as the channel conditions, and hence may be dynamically adjusted even within the same ranging session. An MMS ranging session may include an initialization and setup phase followed by one or more range measurement cycles. During the initialization and setup phase, the frames are transmitted in the initialization channel, while during the measurement cycles, the frames are transmitted in the ranging channel. It is possible to use the same channel as both the initialization channel and the ranging channel. In the initialization and setup phase, an initiator and a responder may negotiate ranging configuration, and the ranging configuration may be carried by a compressed PHY service data unit (PSDU). Ranging MMS packets may be exchanged between the initiator and the responder during the range-measurement cycle. Due to the nature of UWB transmissions (wide bandwidth, low transmission power), it is relatively harder to detect a UWB signal blindly (as compared to an NB signal). As such, in order to avoid accidental interference in the UWB channels, it is desirable to coordinate the UWB channel usage among UWB transmitters using either or both of the UWB and NB transceivers. This can be achieved by the UWB initiators periodically transmitting acquisition packets (AP) on some common well-known UWB and/or NB channels. When transmitted on NB channels, the AP message is known as an NB AP message and when transmitted on UWB channels, the AP message is known as a UWB AP message. Control information carried by the compressed PSDU may be exchanged between the initiator and the responder in the range-measurement cycle. Both the compressed PSDUs and the NB AP message may be transmitted in the initialization channel. Since a format of the compressed PSDU is different from that of the NB AP message, a question arises: how to ensure the NB AP message and the compressed PSDU may coexist on the same channel, i.e., how can a receiving device differentiate the compressed PSDU from the NB AP message? This issue can be generalized as a coexistence issue between compressed PSDUs and any other packet transmitted on the NB channel and using the same physical layer (PHY), e.g., IEEE 802.15.4 offset quadrature phase-shift keying (O-QPSK) PHY. SUMMARY Embodiments of the present application provide a communication method and related devices. The technical solution may be used for identifying a compressed PSDU. According to a first aspect, an embodiment of the present application provides a communication method, including: receiving a first physical layer (PHY) protocol data unit (PPDU), where the first PPDU includes type instruction information, where the type instruction information is configured to indicate whether the first PPDU carries a compressed PHY service data unit (PSDU); and processing the information carried by the payload field of the first PPDU. According to the above-mentioned technical solution, the compressed PSDU may be identified according to the type instruction information carried by the PPDU. Therefore, a receiver of the PPDU may process the received PPDU according to the type instruction information. In a possible design, where the type instruction information is carried by a payload field of the first PPDU. According to the above-mentioned technical solution, the type instruction information may only occupied bits