Method and system for channel data transmission in wireless network

摘要

The present invention discloses a method and system for channel data transmission in a wireless network. The method includes: after a transmitting station and a receiving station determine a channel bandwidth to use for data transmission by interaction and negotiation, the transmitting station transmitting data to the receiving station with the determined channel bandwidth. The present invention further discloses a transmitting station. The present invention can solve the existing collision problem caused by contention for channels between the hidden stations and the current transmission stations, and thus can take full advantage of the effective transmission bandwidth in the large bandwidth system of a wireless network and increase the frequency spectrum utilization of large bandwidth, and at the same time ensure the backward compatibility with the large bandwidth system and its co-existence with conventional systems.

主权项

1. A method for channel data transmission in a wireless network, comprising:
after a transmitting station and a receiving station determine a channel bandwidth to use for data transmission by interaction and negotiation, the transmitting station transmitting data to the receiving station with the determined channel bandwidth; wherein the transmitting station determines the channel bandwidth to use for transmitting the data to the receiving station in units of data frames; the determined channel bandwidth is used for one or more continuous data frame transmissions between the transmitting station and the receiving station; or is used for one or more data frame transmissions between the transmitting station and the receiving station within limit time of one transmission opportunity; when competing for the channels in a distributed coordination function mode, if the data frame transmitted by the transmitting station carries one or more complete service protocol data units or management protocol control frames, the currently determined channel bandwidth is merely the bandwidth to use for transmitting the current data frame; and if the data frame transmitted by the transmitting station carries segment sub-units corresponding to one service protocol data unit or management protocol control frame, the currently determined channel bandwidth is merely the bandwidth to use for the current data frame and subsequently carrying the segment sub-units corresponding to the service protocol data unit or the management protocol control frame; when competing for the channels in an enhanced distributed coordination access function mode, if the transmitting station transmits one data frame to the receiving station in one transmission opportunity and subsequent one or more data bursts in the current transmission opportunity are still directed to the receiving station, the currently determined channel bandwidth is the bandwidth to use for the current data frame and one or more data frames subsequently transmitted to the receiving station; and if the transmitting station transmits one data frame to the receiving station in one transmission opportunity and subsequent data frames in the current transmission opportunity are directed to other receiving stations, the currently determined channel bandwidth is merely the bandwidth to use for the current data frame.