US Patent No. 10,342,041

ACCESS TO A COMMUNICATIONS CHANNEL IN A WIRELESS COMMUNICATIONS NETWORK


Patent No. 10,342,041
Issue Date July 02, 2019
Title Access To A Communications Channel In A Wireless Communications Network
Inventorship Leif Wilhelmsson, Dalby (SE)
Guido Roland Hiertz, Aachen (DE)
Dzevdan Kapetanovic, Lund (SE)
Christofer Lindheimer, Linkoping (SE)
Filip Mestanov, Sollentuna (SE)
Thomas Nilsson, Malmo (SE)
Eric Nordstrom, Stockholm (SE)
Hakan Persson, Solna (SE)
Johan Soder, Stockholm (SE)
Meng Wang, Sundbyberg (SE)
Assignee TELEFONAKTIEBOLAGET LM ERICSSON (publ), Stockholm (SE)

Claim of US Patent No. 10,342,041

1. A method for allocating access to a communications channel in a wireless communications network, the method being performed by an access point, AP, in the wireless communications network and associated with stations, STAs, and comprising the steps of:grouping the STAs of the AP into at least two groups of STAs, each group being associated with an own minimum transmission power level needed by the AP to communicate with the STAs in the associated group of said at least two groups;
allocating a first time interval for a first group of STAs associated with highest minimum transmission power to access the communications channel concurrently with a third time interval being allocated by another AP for a third group of STAs associated with lowest minimum transmission power level needed by said another AP to communicate with said third group of STAs to access the communications channel; and
allocating a second time interval, non-overlapping with said first time interval, for a second group of STAs associated with lowest minimum transmission power to access the communications channel concurrently with a fourth time interval being allocated by said another AP for a fourth group of STAs associated with highest minimum transmission power level needed by said another AP to communicate with said fourth group of STAs to access the communications channel.