PUNCTURING INFORMATION INDICATION METHOD AND COMMUNICATION APPARATUS
This disclosure discloses puncturing information indication methods and communication apparatuses. In an implementation, a method comprises generate a physical layer protocol data unit (PPDU) comprising a preamble, wherein the preamble comprises preamble puncturing information carried by a content channel and indicates preamble puncturing status of subchannels of a bandwidth of the PPDU, wherein the content channel is distributed on some subchannels of the bandwidth of the PPDU, and a bandwidth of the content channel is less than the bandwidth of the PPDU, and send the PPDU.
1 . A puncturing information indication method, wherein the method comprises:
receiving a physical layer protocol data unit (PPDU) comprising a preamble, wherein the preamble comprises location indication information and preamble puncturing information, and wherein the location indication information indicates a frequency domain location of a first content channel, the location indication information is located in a universal-SIG (U-SIG) field, and the preamble puncturing information is located in an extremely high throughput signal field (EHT-SIG) field after the U-SIG field;
wherein the preamble puncturing information is carried on the first content channel, and a bandwidth of the first content channel is less than a bandwidth of the PPDU;
determining the preamble puncturing status based on the location information and preamble puncturing information.
2 . The method according to claim 1 , wherein the preamble puncturing information includes a bitmap that indicates whether a subchannel in the bandwidth of the PPDU is punctured.
3 . The method according to claim 1 , wherein the first content channel is distributed on one or more subchannels of bandwidth of the PPDU.
4 . The method according to claim 3 , wherein a bandwidth of the subchannel is 20 MHz.
5 . The method according to claim 1 , wherein the bandwidth of the PPDU is 80 MHz, 160 MHz, 240 MHz, or 320 MHz.
6 . An apparatus, comprising:
at least one processor;
a memory coupled to the at least one processor and storing program instructions for execution by the at least one processor to enable the apparatus to:
receive a physical layer protocol data unit (PPDU) comprising a preamble, wherein the preamble comprises location indication information and preamble puncturing information, and wherein the location indication information indicates a frequency domain location of a first content channel, the location indication information is located in a universal-SIG (U-SIG) field, and the preamble puncturing information is located in an extremely high throughput signal field (EHT-SIG) field after the U-SIG field;
wherein the preamble puncturing information is carried on the first content channel, and a bandwidth of the first content channel is less than a bandwidth of the PPDU;
determine the preamble puncturing status based on the location information and preamble puncturing information.
7 . The apparatus according to claim 6 , wherein the preamble puncturing information includes a bitmap that indicates whether a subchannel in the bandwidth of the PPDU is punctured.
8 . The apparatus according to claim 6 , wherein the first content channel is distributed on one or more subchannels of bandwidth of the PPDU.
9 . The apparatus according to claim 8 , wherein a bandwidth of the subchannel is 20 MHz.
10 . The apparatus according to claim 9 , wherein the bandwidth of the PPDU is 80 MHz, 160 MHz, 240 MHz, or 320 MHz.
11 . A chip, comprising:
at least one processor, wherein the at least one processor is coupled to a memory that stores program instructions for execution by the at least one processor to:
receive a physical layer protocol data unit (PPDU) comprising a preamble, wherein the preamble comprises location indication information and preamble puncturing information, and wherein the location indication information indicates a frequency domain location of a first content channel, the location indication information is located in a universal-SIG (U-SIG) field, and the preamble puncturing information is located in an extremely high throughput signal field (EHT-SIG) field after the U-SIG field;
wherein the preamble puncturing information is carried on a first content channel, and a bandwidth of the first content channel is less than a bandwidth of the PPDU;
determine the preamble puncturing status based on the location information and preamble puncturing information.
12 . The chip according to claim 11 , wherein the preamble puncturing information includes a bitmap that indicates whether a subchannel in the bandwidth of the PPDU is punctured.
13 . The chip according to claim 11 , wherein the first content channel is distributed on one or more subchannels of bandwidth of the PPDU.
14 . The apparatus according to claim 13 , wherein a bandwidth of the subchannel is 20 MHz.
15 . The chip according to claim 11 , wherein the bandwidth of the PPDU is 80 MHz, 160 MHz, 240 MHz, or 320 MHz.