PPDU transmission method and apparatus based on frequency band stitching

Abstract

This application relates to a PPDU transmission method and related apparatus based on frequency band stitching. The method includes a communication device generating and transmitting a PPDU, wherein the PPDU comprises a first segment and a second segment, the transmission frequency bands of the two segments are different, an inactive segment exists between the two segments, and the communication device does not transmit UWB pulses during the duration of the inactive segment. According to this application, frequency switching requirements can be met. This application is applicable to UWB-based WPAN systems or sensing systems, etc., including 802.15-based protocols, e.g., 802.15.4ab or next-generation standards of 802.15.4ab. This application may be further applicable to WLAN systems that support 802.11-based protocols, such as next-generation protocols of 802.11ax, such as 802.11be, Wi-Fi 7, or EHT, and next-generation protocols of 802.11be, such as Wi-Fi 8, UHR, or Wi-Fi AI.

Claims

1. A method for transmitting physical layer protocol data units based on frequency band stitching, A communication device generates a physical layer protocol data unit (PPDU), wherein the PPDU includes a plurality of segments used for sensing, the plurality of segments used for sensing include a first segment and a second segment, and the time gap between the first segment and the second segment is greater than the duration of a single sensing symbol. The steps include transmitting the PPDU using the communication device, A method that includes this.

2. The step of transmitting the PPDU using the communication device is: The method according to claim 1, further comprising the step of transmitting ultra-wideband (UWB) pulses within the duration of the first segment and the second segment using the communication device.

3. Before transmitting the PPDU using the communication device, the method The communication device transmits activation information, wherein the activation information indicates whether or not to enable packet-internal frequency band stitching. The method according to claim 1 or 2, further comprising a step in which, if the activation information indicates that in-packet frequency band stitching is enabled, the time gap between the first segment and the second segment is greater than the duration of the one sensing symbol.

4. The method according to any one of claims 1 to 3, wherein the transmission frequency band of the first segment is different from the transmission frequency band of the second segment.

5. The plurality of segments used for sensing further include a third segment and a fourth segment, wherein the transmission frequency band of the third segment is the same as the transmission frequency band of the fourth segment. The method according to any one of claims 1 to 4, wherein the time gap between the third segment and the fourth segment is different from the time gap between the first segment and the second segment.

6. Before transmitting the PPDU using the communication device, the method The method according to any one of claims 1 to 5, further comprising the step of transmitting a control message by the communication device, wherein the control message indicates one or more of the following: an ultra-wideband (UWB) channel index corresponding to a segment used for sensing, or whether a synchronization field is used for frequency band stitching.

7. The aforementioned control message is as follows: The frequency band stitching scheme, the number of PPDUs currently involved in frequency band stitching, the frequency band stitching type, the total number of frequency bands currently scheduled to be used for frequency band stitching, the overlap rate between frequency bands used for frequency band stitching, the first UWB channel index used for frequency band stitching, whether the center frequency of the UWB channel increases or decreases, or the time gap between the first segment and the second segment, further indicating one or more of these, The method according to claim 6, wherein the frequency band stitching method includes in-sequence channel frequency band stitching and out-of-sequence channel frequency band stitching, and the frequency band stitching type includes one or more of the following: intrapacket frequency band stitching, or intrapacket and interpacket frequency band stitching.

8. A method for transmitting physical layer protocol data units based on frequency band stitching, A communication device receives a physical layer protocol data unit (PPDU), wherein the PPDU includes a plurality of segments used for sensing, the plurality of segments used for sensing include a first segment and a second segment, and the time gap between the first segment and the second segment is greater than the duration of a single sensing symbol. The steps include: performing sensing measurements based on the first segment and the second segment using the communication device; A method that includes this.

9. The step of receiving the PPDU by the communication device is: The method according to claim 8, comprising the step of receiving an ultra-wideband (UWB) pulse within the duration of the first segment and the second segment using the communication device.

10. Before the PPDU is received by the communication device, the method The communication device receives activation information, the activation information indicating whether to enable packet frequency band stitching. The method according to claim 8 or 9, further comprising a step in which, if the activation information indicates that in-packet frequency band stitching is enabled, the time gap between the first segment and the second segment is greater than the duration of the one sensing symbol.

11. The method according to any one of claims 8 to 10, wherein the transmission frequency band of the first segment is different from the transmission frequency band of the second segment.

12. The plurality of segments used for sensing further include a third segment and a fourth segment, wherein the transmission frequency band of the third segment is the same as the transmission frequency band of the fourth segment. The method according to any one of claims 8 to 11, wherein the time gap between the third segment and the fourth segment is different from the time gap between the first segment and the second segment.

13. Before the PPDU is received by the communication device, the method The method according to any one of claims 8 to 12, further comprising the step of receiving a control message by the communication device, wherein the control message indicates one or more of the following: a UWB channel index corresponding to a segment used for sensing, or whether a synchronization field is used for frequency band stitching.

14. The aforementioned control message is as follows: The frequency band stitching scheme, the number of PPDUs currently involved in frequency band stitching, the frequency band stitching type, the total number of frequency bands currently scheduled to be used for frequency band stitching, the overlap rate between frequency bands used for frequency band stitching, the first UWB channel index used for frequency band stitching, whether the center frequency of the UWB channel increases or decreases, or the time gap between the first segment and the second segment, further indicating one or more of these, The method according to claim 13, wherein the frequency band stitching method includes in-sequence channel frequency band stitching and out-of-sequence channel frequency band stitching, and the frequency band stitching type includes one or more of the following: intrapacket frequency band stitching, or intrapacket and interpacket frequency band stitching.

15. A method for transmitting physical layer protocol data units based on frequency band stitching, A communication device generates a physical layer protocol data unit (PPDU), wherein the PPDU includes a plurality of segments used for sensing, the plurality of segments used for sensing include a first segment and a second segment, the transmission frequency band of the first segment is different from the transmission frequency band of the second segment, and an inactive segment exists between the first segment and the second segment. A step of transmitting the PPDU using the communication device, wherein the communication device does not transmit an ultra-wideband (UWB) pulse during the duration of the inactive segment. A method that includes this.

16. The method according to claim 15, wherein at least one of the plurality of segments used for sensing belongs to the sensing field of the PPDU.

17. The method according to claim 15 or 16, wherein at least one of the plurality of segments used for sensing belongs to the synchronization field of the PPDU.

18. The method according to any one of claims 15 to 17, wherein the duration of the inactive segment is different from the duration of the first segment or the second segment.

19. Before transmitting the PPDU using the communication device, the method The communication device transmits a control message, wherein the control message is as follows: The method according to any one of claims 15 to 18, further comprising the step of indicating whether frequency band stitching is enabled, the number of PPDUs currently involved in frequency band stitching, whether the synchronization field is used for frequency band stitching, the segment used for sensing within the sensing field of the PPDU, or the ultra-wideband (UWB) channel index corresponding to the segment used for sensing.

20. The aforementioned control message is as follows: Further indicate one or more of the following: frequency band stitching scheme, frequency band stitching type, total number of currently scheduled frequency bands used for frequency band stitching, overlap rate between frequency bands used for frequency band stitching, first UWB channel index used for frequency band stitching, or whether the center frequency of the UWB channel increases or decreases. The method according to claim 19, wherein the frequency band stitching method includes in-sequence channel frequency band stitching and out-of-sequence channel frequency band stitching, and the frequency band stitching type includes one or more of the following: intrapacket frequency band stitching, interpacket frequency band stitching, or intrapacket and interpacket frequency band stitching.

21. A method for transmitting physical layer protocol data units based on frequency band stitching, A communication device receives a physical layer protocol data unit (PPDU), wherein the PPDU includes a plurality of segments used for sensing, the plurality of segments used for sensing includes a first segment and a second segment, the transmission frequency band of the first segment is different from the transmission frequency band of the second segment, an inactive segment exists between the first segment and the second segment, and the communication device does not receive an ultra-wideband (UWB) pulse during the duration of the inactive segment. The steps include: performing sensing measurements based on the first segment and the second segment using the communication device; A method that includes this.

22. The method according to claim 21, wherein at least one of the plurality of segments used for sensing belongs to the sensing field of the PPDU.

23. The method according to claim 21 or 22, wherein at least one of the plurality of segments used for sensing belongs to the synchronization field of the PPDU.

24. The method according to any one of claims 21 to 23, wherein the duration of the inactive segment is different from the duration of the first segment or the second segment.

25. Before the PPDU is received by the communication device, the method The communication device receives a control message, wherein the control message is as follows: The method according to any one of claims 21 to 24, further comprising the step of indicating whether frequency band stitching is enabled, the number of PPDUs currently involved in frequency band stitching, whether the synchronization field is used for frequency band stitching, the segment used for sensing within the sensing field of the PPDU, or the ultra-wideband (UWB) channel index corresponding to the segment used for sensing.

26. The aforementioned control message is as follows: Further indicate one or more of the following: frequency band stitching scheme, frequency band stitching type, total number of currently scheduled frequency bands used for frequency band stitching, overlap rate between frequency bands used for frequency band stitching, first UWB channel index used for frequency band stitching, or whether the center frequency of the UWB channel increases or decreases. The method according to claim 25, wherein the frequency band stitching method includes in-sequence channel frequency band stitching and out-of-sequence channel frequency band stitching, and the frequency band stitching type includes one or more of the following: intrapacket frequency band stitching, interpacket frequency band stitching, or intrapacket and interpacket frequency band stitching.

27. A communication device comprising a module or unit configured to perform the method described in any one of claims 1 to 7 or 15 to 20.

28. A communication device comprising a module or unit configured to perform the method described in any one of claims 8 to 14 or 21 to 26.

29. A communication device, It comprises one or more processors, and the one or more processors are coupled to one or more memories. A communication device in which one or more memories are configured to store computer programs, and one or more processors are configured to execute the computer programs stored in the one or more memories, thereby enabling the communication device to perform the method according to any one of claims 1 to 26.

30. A readable storage medium configured to store a program, wherein the program is executed by the one or more processors to enable a device comprising one or more processors to perform the method according to any one of claims 1 to 26.

31. A communication device configured to perform the method described in any one of claims 1 to 7, and a communication device configured to perform the method described in any one of claims 8 to 14, or A communication device configured to perform the method described in any one of claims 15 to 20, and a communication system comprising a communication device configured to perform the method described in any one of claims 21 to 26.

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