Patent ID: 11949542
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The communication device according to claim 4,
wherein setting the value of the first disregard bits sequence of the MU PPDU to one of the sequences in the set {‘00101’, ‘00110’, ‘01001’, ‘01111’, ‘10011’, ‘10101’, ‘11000’, ‘10110’} comprises:
the first disregard bits sequence is set to ‘00101’ when the PPDU is transmitted over 20 MHz bandwidth; or
the first disregard bits sequence is set to one of {‘00101’, ‘00110’, ‘01001’, ‘01111’, ‘10011’} when the PPDU is transmitted over 40 MHz bandwidth; or
the first disregard bits sequence is set to one of {‘00101’, ‘01111’, ‘10011’, ‘11000’} when the PPDU is transmitted over 80 MHz bandwidth; or
the first disregard bits sequence is set to one of {‘00101’, ‘10101’} when the PPDU is transmitted over 160 MHz bandwidth; or
the first disregard bits sequence is set to one of {‘00101’, ‘10110’} when the PPDU is transmitted over 320 MHz bandwidth; or
the first disregard bits sequence is set to ‘00101’ for any bandwidth;

and
wherein setting the first disregard bits sequence of the TB PPDU for the first U-SIG symbol to one of the sequences in the set {‘010010’, ‘010011’, ‘010101’, ‘011100’, ‘011101’, ‘011110’, ‘011111’, ‘100101’, ‘100010’, ‘110100’, ‘111000’, ‘111001’} comprises:
the first disregard bits sequence of the TB PPDU for the first U-SIG symbol is set to one of the sequences in the set {‘010010’, ‘010011’, ‘010101’, ‘011100’, ‘011101’, ‘011110’, ‘011111’, ‘100101’, ‘100010’, ‘110100’, ‘111000’, ‘111001’}, the first disregard bits sequence of the TB PPDU for the second U-SIG symbol is copied from a trigger frame;

and
wherein setting the first disregard bits sequence of the TB PPDU for the second U-SIG symbol to one of the sequences in the set {‘01001’, ‘01101’, ‘01111’, ‘11010’, ‘11011’, ‘11101’, ‘11110’, ‘11111’} comprises:
the first disregard bits sequence of the TB PPDU for the second U-SIG symbol is set to one of the sequences in the set {‘01001’, ‘01101’, ‘01111’, ‘11010’, ‘11011’, ‘11101’, ‘11110’, ‘11111’}, and the first disregard bits sequence of the TB PPDU for the first U-SIG symbol is set to ‘011110’ in binary.