US Patent No. 10,251,201

COMMUNICATION DEVICE AND A METHOD THEREIN FOR DETERMINING A CONTENTION WINDOW SIZE IN A COMMUNICATION NETWORK


Patent No. 10,251,201
Issue Date April 02, 2019
Title Communication Device And A Method Therein For Determining A Contention Window Size In A Communication Network
Inventorship Jung-Fu Cheng, Fremont, CA (US)
Sorour Falahati, Stockholm (SE)
Du Ho Kang, Sollentuna (SE)
Havish Koorapaty, Saratoga, CA (US)
Daniel Larsson, Stockholm (SE)
Amitav Mukherjee, Santa Clara, CA (US)
Assignee TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm (SE)

Claim of US Patent No. 10,251,201

1. A method performed by a first communication device for adapting a random backoff contention window size, comprising:transmitting a downlink burst to at least one second communication device;
receiving from the second communication device, a plurality of Hybrid Automatic Repeat reQuest, HARQ, feedback values corresponding to a plurality of transmissions in the downlink burst; and
adapting the random backoff contention window size based on the received plurality of HARQ feedback values,
wherein the plurality of HARQ feedback values comprises at least one previously unused HARQ feedback value.