US Patent No. 10,397,956

METHOD FOR TRANSMISSION AND RECEPTION IN PARALLEL ON DUAL CHANNELS, AND APPARATUS


Patent No. 10,397,956
Issue Date August 27, 2019
Title Method For Transmission And Reception In Parallel On Dual Channels, And Apparatus
Inventorship Yun Liu, Shenzhen (CN)
Sheng Liu, Shenzhen (CN)
Teyan Chen, Shenzhen (CN)
Assignee HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)

Claim of US Patent No. 10,397,956

1. A method for transmission and reception in parallel on dual channels, wherein the method comprises:determining, by an access point (AP), a first transmission duration of a first channel data packet transmitted on a first channel when detecting that the first channel is occupied by carrier sense multiple access (CSMA) contention, wherein when the first channel is used to transmit uplink data, determining the first transmission duration of the first channel data packet transmitted on the first channel comprises obtaining the first transmission duration of the first channel data packet from transmission information when the access point detects that there is transmission information comprising transmission duration before the first channel data packet is transmitted, and wherein determining the transmission duration comprises parsing preamble information of a first channel data packet to obtain the first transmission duration of the first channel data packet from the preamble information when the access point detects that there is no transmission information comprising transmission duration of a data packet before the first channel data packet is transmitted;
determining, by a clear channel assessment (CCA) detector, that a second channel is idle, wherein the second channel is used to transmit a second channel data packet, and wherein a transmission direction of the second channel data packet is opposite a transmission direction of the first channel data packet;
determining, using the first transmission duration, a second transmission duration corresponding to the second channel data packet; and
transmitting the second channel data packet on the second channel according to the second transmission duration, wherein an end time of transmission of the second channel data packet is not later than an end time of transmission of the first channel data packet.