Title:
無線通信システムおよび無線通信方法
Document Type and Number:
Japanese Patent JP6440076
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To adjust vertical throughput ratio, while improving the throughput characteristics of RoF-WLAN, in a configuration where existing WLAN and RoF-WLAN coexist.SOLUTION: A wireless communication system coexisting with existing wireless communication system performing access control by CSMA/CA system, and performing access control without performing carrier sense includes means for acquiring a NAV period, where data transmission and reception is performed, from an access control signal for performing data transmission and reception in the existing wireless communication system for setting, and transmission control means waiting for transmission with a predetermined transmission standby probability α, when there is transmission data and transmitting the access control signal, after a time Tw of less than the DIFS time in the CSMA/CA system and 0 or more, with the internal delay time before the finish time of the NAV period as an origin.SELECTED DRAWING: Figure 2
Inventors:
Murayama Daisuke
Takatoshi Sugiyama
Masahiro Morikura
Funiki Hikito
Takatoshi Sugiyama
Masahiro Morikura
Funiki Hikito
Application Number:
JP2015146964A
Publication Date:
December 19, 2018
Filing Date:
July 24, 2015
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
Kyoto University
Kyoto University
International Classes:
H04W74/08; H04W72/04; H04W84/12
Domestic Patent References:
| JP2010517482A | ||||
| JP6169312A |
Other References:
船引魁斗, 西尾理志, 守倉正博, 山本高至, 村山大輔, 杉山隆利,RoF無線LANと既存無線LANの共存方式の提案,信学技報,一般社団法人電子情報通信学会,2015年 3月,vol. 114, no. 492, SRW2014-50,p. 19-24
Attorney, Agent or Firm:
Furuya Fumio
Takeshi Ohashi
Yoshio Kawada
Takeshi Ohashi
Yoshio Kawada