Device and method for non-contiguous multiple resource unit in a wireless network

Patent metadata

Field	Value
Publication number	US-12323342-B2
Application number	US-202418818551-A
Country	US
Kind code	B2
Filing date	Aug 28, 2024
Priority date	Apr 30, 2019
Publication date	Jun 3, 2025
Grant date	Jun 3, 2025

Abstract

The present disclosure suggests to expand and improve the method of utilizing channel resources in the 802.11be standard by allowing the use of multiple and non-contiguous portions of a channel. Supporting multiple resource units (MRUs) and non-contiguous resource units (RUs) improves the channel utilization by making it more efficient due to enhancing the capability of leveraging the channel selectivity. To this end, a wireless network device for resource allocation is provided and configured to define a non-contiguous MRU in the bandwidth of the channel. The channel includes a plurality of RUs, and the non-contiguous MRU is defined based on non-punctured RUs after puncturing one or more of the RUs of the channel, and/or is defined by aggregating two or more non-adjacent RUs of the channel.

First claim

What is claimed is:

1. A wireless network device for resource allocation, the wireless network device comprising a processor configured to:
define a non-contiguous multiple resource unit (MRU) in a bandwidth of a channel, wherein the channel comprises a plurality of resource units (RUs), and wherein the non-contiguous MRU is defined based on non-punctured RUs after puncturing one or more of the RUs of the channel; and
allocate the non-contiguous MRU to a wireless station.

2. The wireless network device according to claim 1 , wherein:
the RUs are sub-channels.

3. The wireless network device according to claim 2 , wherein:
the channel comprises one, two, three or four 80 MHz segments, and each 80 MHz segment comprises four 20 MHz sub-channels.

4. The wireless network device according to claim 1 , wherein:
the RUs each comprise a plurality of contiguous frequency tones.

5. The wireless network device according to claim 4 , wherein:
the frequency tones each have a 78.125 kHz bandwidth.

6. The wireless network device according to claim 1 , wherein:
the non-contiguous MRU comprises one 26-tone RU and one 52-tone RU; or
the non-contiguous MRU comprises one 26-tone RU and one 106-tone RU; or
the non-contiguous MRU comprises one 242-tone RU and one 484-tone RU.

7. The wireless network device according to claim 1 , wherein the non-contiguous MRU comprises at least one of the following:
at least two contiguous parts; or
at least two non-contiguous parts.

8. The wireless network device according to claim 1 , wherein the processor is further configured to cause the wireless network device to transmit a packet to the wireless station utilizing the non-contiguous MRU.

9. The wireless network device according to claim 8 , wherein a preamble of the packet comprising information indicating the RUs comprises at least one of the following:
RUs that are used; or
RUs that are non-punctured; or
RUs that are punctured.

10. The wireless network device according to claim 9 , wherein:
the packet is a physical layer conformance procedure (PLCP) protocol data unit (PPDU), and the information is included in a Universal Signaling (U-SIG) field or an Extremely High Throughput Signaling (EHT-SIG) field of the preamble of the packet.

11. The wireless network device according to claim 10 , wherein:
the packet is a multi-user PPDU; and
the EHT-SIG field of the multi-user PPDU comprises a sub-field for each of one or more wireless stations, and the information is included in the sub-field associated with the wireless station to which the packet is transmitted utilizing the non-contiguous MRU.

12. The wireless network device according to claim 10 , wherein:
the packet is a single-user PPDU or multi-user PPDU; and
the information is included as a bitmap in the U-SIG field of the single-user PPDU or multi-user PPDU.

13. The wireless network device according to claim 1 , wherein:
the wireless network device is an access point of a wireless network.

14. A method for resource allocation, the method comprising:
defining a non-contiguous multiple resource unit (MRU) in a bandwidth of a channel, wherein the channel comprises a plurality of resource units (RUS), and wherein the non-contiguous MRU is defined based on non-punctured RUs after puncturing one or more of the RUs of the channel; and
allocating the non-contiguous MRU to a wireless station.

15. The method according to claim 14 , wherein:
the RUs are sub-channels.

16. The method according to claim 15 , wherein:
the channel comprises one, two, three or four 80 MHz segments, and each 80 MHz segment comprises four 20 Mhz sub-channels.

17. The method according to claim 14 , wherein:
the RUs each comprise a plurality of contiguous frequency tones.

18. The method according to claim 17 , wherein:
the frequency tones each have a 78.125 kHz bandwidth.

19. The method according to claim 14 , wherein:
the non-contiguous MRU comprises one 26-tone RU and one 52-tone RU; or
the non-contiguous MRU comprises one 26-tone RU and one 106-tone RU; or
the non-contiguous MRU comprises one 242-tone RU and one 484-tone RU.

20. The method according to claim 14 , wherein the non-contiguous MRU comprises at least one of the following:
at least two contiguous parts; or
at least two non-contiguous parts.

21. The method according to claim 14 , further comprising:
transmitting a packet to the wireless station utilizing the non-contiguous MRU.

22. The method according to claim 21 , wherein:
a preamble of the packet comprises information indicating the RUs, wherein the RUs comprise at least one of the following:
RUs that are used; or
the non-punctured RUs; or
RUs that are punctured.

23. The method according to claim 22 , wherein:
the packet is a physical layer conformance procedure (PLCP) protocol data unit (PPDU), and the information is included in a Universal Signaling (U-SIG) field or an Extremely High Throughput Signaling (EHT-SIG) field of the preamble of the packet.

24. The method according to claim 23 , wherein:
the packet is a multi-user PPDU; and
the EHT-SIG field of the multi-user PPDU comprises a sub-field for each of one or more wireless stations, and the information is included in the sub-field associated with the wireless station to which the packet is transmitted utilizing the non-contiguous MRU.

25. The method according to claim 23 , wherein:
the packet is a single-user PPDU or multi-user PPDU; and
the information is included as a bitmap in the U-SIG field of the single-user PPDU or multi-user PPDU.

26. The method according to claim 14 , wherein:
the method is executed in an access point of a wireless network.

Assignees

• Huawei Tech Co Ltd

Inventors

• Redlich Oded
• Shilo Shimon
• Yu Jian
• Li Yunbo
• Tsodik Genadiy

Classifications

• H04L1/0068

  by puncturing · CPC title

• H04L27/2613

  Structure of the reference signals · CPC title

• H04L5/0041 Primary

  Frequency-non-contiguous · CPC title

• H04L27/2602

  Signal structure · CPC title

• H04L5/0005 Primary

  Time-frequency · CPC title