Patent ID: 11916816
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method in a wireless local area network system, the method comprising:
receiving, by a receiving station (STA), an Extremely High Throughput Physical Protocol Data Unit (EHT PPDU) from a transmitting STA,
wherein the EHT PPDU includes a legacy signal field, a repeated legacy signal field in which the legacy signal field is contiguous and the legacy signal field is repeated, and a Universal Signal (U-SIG) contiguous to the repeated legacy signal field,
wherein the U-SIG field includes control information for interpreting the EHT PPDU,
wherein the U-SIG field includes a first U-SIG signal transmitted through a first symbol and a second U-SIG signal transmitted through a second symbol, wherein the second symbol is contiguous to the first symbol,
wherein the first U-SIG signal is configured based on 26-bits control information including B0 bit to B25 bit,
wherein the B20 bit to the B24 bit are reserved bits that are configured to be ignored in a receiving operation of the receiving STA,
wherein the B25 bit of the first U-SIG signal is a reserved bit and includes information regarding whether the EHT PPDU relates to a first release or a second release,
wherein, based on the B25 bit of the first U-SIG signal having a first value for the first release, the EHT PPDU is set to the EHT PPDU related to the first release,
wherein, based on the B25 bit of the first U-SIG signal having a second value for the second release, the EHT PPDU is set to the EHT PPDU related to the second release,
wherein the EHT PPDU related to the second release includes a first EHT SIG field and a second EHT SIG field,
wherein the first EHT SIG field includes first control information regarding the EHT PPDU related to the first release, and
wherein the second EHT SIG field includes second control information regarding a number of spatial streams for up to sixteen spatial streams; and
decoding, by the receiving STA, the EHT PPDU based on the U-SIG field.