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, wherein the preamble puncturing information is carried by a content channel of an extremely high throughput signal (EHT-SIG) field and indicates preamble puncturing status of subchannels of a bandwidth of the PPDU, the location indication information is carried by a universal-SIG (U-SIG) field and indicates a frequency domain location of the content channel, wherein the content channel is distributed on some subchannels of the bandwidth of the PPDU, a bandwidth of the content channel is less than the bandwidth of the PPDU, and the bandwidth of the PPDU is 80 MHz, 160 MHz, or 320 MHz; and sending the PPDU.
2. The method according to claim 1 , wherein a bandwidth of each subchannel of the subchannels is 20 MHz.
3. 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, wherein the preamble puncturing information is carried by a content channel of an extremely high throughput signal (EHT-SIG) field and indicates preamble puncturing status of subchannels of a bandwidth of the PPDU, the location indication information is carried by a universal-SIG (U-SIG) field and indicates a frequency domain location of the content channel, wherein the content channel is distributed on some subchannels of the bandwidth of the PPDU, a bandwidth of the content channel is less than the bandwidth of the PPDU, and the bandwidth of the PPDU is 80 MHz, 160 MHz, or 320 MHz; and
determining the preamble puncturing status based on the preamble puncturing information.
4. The method according to claim 3 , wherein a bandwidth of each subchannel of the subchannels is 20 MHz.
5. An apparatus, comprising:
a memory storing program instructions; and
at least one processor coupled to the memory, wherein the program instructions, when executed by the at least one processor, 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, wherein the preamble puncturing information is carried by a content channel of an extremely high throughput signal (EHT-SIG) field and indicates preamble puncturing status of subchannels of a bandwidth of the PPDU, the location indication information is carried by a universal-SIG (U-SIG) field and indicates a frequency domain location of the content channel, wherein the content channel is distributed on some subchannels of the bandwidth of the PPDU, a bandwidth of the content channel is less than the bandwidth of the PPDU, and the bandwidth of the PPDU is 80 MHz, 160 MHz, or 320 MHz; and
send the PPDU.
6. The apparatus according to claim 5 , wherein a bandwidth of each subchannel of the subchannels is 20 MHz.
7. An apparatus, comprising:
a memory storing program instructions; and
at least one processor coupled to the memory, wherein the program instructions, when executed by the at least one processor, 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, wherein the preamble puncturing information is carried by a content channel of an extremely high throughput signal (EHT-SIG) field and indicates preamble puncturing status of subchannels of a bandwidth of the PPDU, the location indication information is carried by a universal-SIG (U-SIG) field and indicates a frequency domain location of the content channel, wherein the content channel is distributed on some subchannels of the bandwidth of the PPDU, a bandwidth of the content channel is less than the bandwidth of the PPDU, and the bandwidth of the PPDU is 80 MHz, 160 MHz, or 320 MHz; and
determine the preamble puncturing status based on the preamble puncturing information.
8. The apparatus according to claim 7 , wherein a bandwidth of each subchannel of the subchannels is 20 MHz.