Space reuse method and device 1

Abstract

This invention provides a method for reusing space and a first device. [Solution] The method is applicable to WLAN systems that support the EHT or 802.11be standard. The method includes: receiving a transmitted PPDU from a second device; the PPDU bandwidth includes multiple 20MHz subchannels; performing OBSS PD-based spatial reuse; the first signal strength level of the received PPDU being less than the OBSS PD level, with the unit of the first signal strength level being dBm / 20MHz. The method provided in this application can be understood to successfully measure the signal strength level even when the first device cannot receive all 20MHz subchannels of the entire PPDU bandwidth, or when preamble puncturing occurs or complete preamble puncturing information cannot be obtained, increasing the number of viable scenarios in which OBSS PD-based spatial reuse can be performed and improving the overall system throughput.

Claims

1. A method for reusing space, wherein the method is A first device receives a physical layer protocol data unit (PPDU) transmitted by a second device, wherein the bandwidth of the PPDU includes a plurality of 20 megahertz MHz subchannels. A step of performing duplicate basic service set packet detection OBSS PD-based space reuse by the first device, wherein the first signal strength level of the PPDU received by the first device is less than the OBSS PD level, and the unit of the first signal strength level is decibel milliwatt dBm / 20MHz. A method of reusing space, including...

2. The first signal strength level is obtained based on the signal strength measurement results of multiple punctured 20 MHz subchannels within the PPDU. The method according to claim 1.

3. The aforementioned multiple uncanceled 20MHz subchannels are placed on the primary channel. The method according to claim 2.

4. The first signal intensity level is obtained by normalizing the signal intensity measurement results of the plurality of punctured 20 MHz subchannels within the PPDU. The method according to claim 2 or 3. 【Request Item 5】 【Number 1】 And Rx_PWR ｄＢｍ／２０ＭＨｚ This is the first signal intensity level, and Rx_PWR ｎｏｎｐｕｎｃ－ｍｅａｓｕｒｅｄ，ｔｏｔａｌ This is the sum of the signal intensity measurement results of the multiple uncracked 20 MHz subchannels within the PPDU, and N ｎｏｎｐｕｎｃ－ｍｅａｓｕｒｅｄ This is the number of the measured number of the multiple punctured 20 MHz subchannels. The method according to claim 4.

6. The first signal strength level is obtained based on the signal strength measurement result of an unpunctured 20 MHz subchannel within the PPDU, wherein the unpunctured 20 MHz subchannel is the primary 20 MHz channel or the 20 MHz channel on which the first device operates. The method according to claim 1. [Request Item 7] [Number 2] And, OBSS_PD ｌｅｖｅｌ This is the OBSS PD level, and OBSS_PD ｍｉｎ and OBSS_PD ｍａｘ These are OBSS_PD respectively. ｌｅｖｅｌ These are the minimum and maximum values ​​of TX_PWR ｒｅｆ is the reference power, and TX_PWR is the transmit power when the second device transmits the PPDU. The method according to any one of claims 1 to 6.

8. A first device, wherein the first device is A communication unit is configured to receive a Physical Layer Protocol Data Unit (PPDU) transmitted by a second device, wherein the bandwidth of the PPDU includes a plurality of 20 megahertz MHz subchannels. The communication unit is further configured to perform duplicate basic service set packet detection OBSS PD-based space reuse, wherein the first signal strength level of the PPDU received by the first device is less than the OBSS PD level, and the unit of the first signal strength level is decibel milliwatt dBm / 20MHz. The first device.

9. The first signal strength level is obtained based on the signal strength measurement results of multiple punctured 20 MHz subchannels within the PPDU. The first device according to claim 8.

10. The aforementioned multiple uncanceled 20MHz subchannels are placed on the primary channel. The first device according to claim 9.

11. The first signal intensity level is obtained by normalizing the signal intensity measurement results of the plurality of punctured 20 MHz subchannels within the PPDU. The first device according to claim 9 or 10. [Request Item 12] [Number 3] and Rx_PWR ｄＢｍ／２０ＭＨｚ is the first signal strength level, Rx_PWR ｎｏｎｐｕｎｃ－ｍｅａｓｕｒｅｄ，ｔｏｔａｌ is the sum of the signal strength measurement results of the plurality of non - punctured 20 MHz sub - channels in the PPDU, and N ｎｏｎｐｕｎｃ－ｍｅａｓｕｒｅｄ is the number of the measured plurality of non - punctured 20 MHz sub - channels The first device according to claim 11.

13. The first signal strength level is obtained based on the signal strength measurement result of an unpunctured 20 MHz subchannel within the PPDU, wherein the unpunctured 20 MHz subchannel is the primary 20 MHz channel or the 20 MHz channel on which the first device operates. The first device according to claim 8. [Request Item 14] [Number 4] And, OBSS_PD ｌｅｖｅｌ This is the OBSS PD level, and OBSS_PD ｍｉｎ and OBSS_PD ｍａｘ These are OBSS_PD respectively. ｌｅｖｅｌ These are the minimum and maximum values ​​of TX_PWR ｒｅｆ is the reference power, and TX_PWR is the transmit power when the second device transmits the PPDU. The first device according to any one of claims 8 to 13.

15. A first device comprising a processor, memory, and a transceiver, wherein the memory is configured to store a computer program, the transceiver is configured to receive and transmit data, and the processor is configured to execute the computer program stored in the memory to carry out the method according to any one of claims 1 to 7.

16. A chip comprising a processor and an interface, wherein the processor is coupled to the interface. A chip in which the interface is configured to receive or output signals, and the processor is configured to execute code instructions, thereby performing the method according to any one of claims 1 to 7.

17. A computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are invoked by a computer, the computer is able to perform the method according to any one of claims 1 to 7.

18. A computer program product, wherein the computer program product includes computer program code, and when the computer program code is executed on a computer, the computer is capable of performing the method according to any one of claims 1 to 7.

Images