Title:
CONTENTION WINDOW SIZE ADJUSTMENT IN A WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/045105
Kind Code:
A1
Abstract:
Apparatuses, methods, and systems are disclosed for contention window size adjustment. One apparatus includes a transmitter that transmits data on a carrier to a set of devices in a first transmission burst having a duration of at least one subframe. In some embodiments, the set of devices includes one or more devices. In various embodiments, the apparatus includes a receiver that receives feedback information from each device. In certain embodiments, the apparatus includes a processor that determines, based on the feedback information, whether interference above a predetermined level exists on the carrier during the first transmission burst at each device, adjusts a contention window size based on the determination of whether interference above the predetermined level exists on the carrier during the first transmission burst at each device, and determines a value Nbetween a predetermined minimum contention window size and the adjusted contention window size.
Inventors:
LEI HAIPENG (CN)
SHEN ZUKANG (CN)
YU XIAODONG (CN)
SHEN ZUKANG (CN)
YU XIAODONG (CN)
Application Number:
PCT/CN2015/089542
Publication Date:
March 23, 2017
Filing Date:
September 14, 2015
Export Citation:
Assignee:
LENOVO INNOVATIONS LTD HONG KONG (CN)
International Classes:
H04L47/27; H04W40/16; H04L1/00
Foreign References:
| CN102377513A | 2012-03-14 | |||
| CN103918315A | 2014-07-09 | |||
| EP1760925A2 | 2007-03-07 |
Other References:
"Contention window size adaptation for DL LBT in LAA", 3GPP TSG RAN WG1 MEETING #82, 24 August 2015 (2015-08-24)
"Category 4 LBT for LAA Downlink", 3GPP TSG RAN WG1 MEETING #82, 24 August 2015 (2015-08-24)
"Triggering mechanism for contention window size adaptation", 3GPP TSG RAN WG1 MEETING #82, 24 August 2015 (2015-08-24)
See also references of EP 3320720A4
"Category 4 LBT for LAA Downlink", 3GPP TSG RAN WG1 MEETING #82, 24 August 2015 (2015-08-24)
"Triggering mechanism for contention window size adaptation", 3GPP TSG RAN WG1 MEETING #82, 24 August 2015 (2015-08-24)
See also references of EP 3320720A4
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LTD. (CN)
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