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:
generating 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; and
sending the preamble puncturing information on the first content channel, wherein a bandwidth of the first content channel is less than a bandwidth of the PPDU.
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:
generate 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; and
send the preamble puncturing information on the first content channel, wherein a bandwidth of the first content channel is less than a bandwidth of the PPDU.
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 6 , 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:
generate 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; and
sending the preamble puncturing information on a first content channel, wherein a bandwidth of the first content channel is less than a bandwidth of the PPDU.
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.