公开(公告)号：EP3606179A1

公开(公告)日：2020-02-05

申请号：EP18777993.9

申请日：2018-03-28

申请人： Nippon Telegraph And Telephone Corporation

发明人： INOKI, Akiyoshi ,  ABEYSEKERA, Hirantha ,  MATSUI, Munehiro ,  KAWAMURA, Kenichi ,  TAKATORI, Yasushi ,  ICHIKAWA, Takeo ,  KISHIDA, Akira ,  MORIHIRO, Yoshifumi ,  ASAI, Takahiro

IPC分类号： H04W48/16 ,  H04W48/18 ,  H04W74/08 ,  H04W84/12

摘要： An AP and UE, which perform access control using CSMA/CA, perform a step judging an exposed level in transmission of the AP based on a congesting level in transmission, which is caused by a wireless station in defer transmission that is in a neighborhood of the AP; a step judging an exposed level in reception of the UE based on a congesting level in reception, which is caused by a wireless station in defer transmission that is in a neighborhood of the UE; and a step performing control which changes a channel of the AP, when the exposed level in transmission cannot satisfy expected quality of the AP, and performing control which changes a connected AP of the UE, or control which changes to other network, when the exposed level in transmission or in reception cannot satisfy required quality of the UE or the expected quality of the AP.

公开(公告)号：EP3764681A1

公开(公告)日：2021-01-13

申请号：EP19764773.8

申请日：2019-02-27

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： INOKI, Akiyoshi ,  WAKAO, Keisuke ,  ABEYSEKERA, Hirantha ,  MATSUI, Munehiro ,  KAWAMURA, Kenichi ,  TAKATORI, Yasushi

IPC分类号： H04W24/02 ,  H04W28/16 ,  H04W48/18 ,  H04W88/06 ,  H04W88/18

摘要： Provided is a wireless communication control method, in which a management server manages line selection of an unlicensed band/licensed band of a UE and manages parameters of the unlicensed band, including a control step of excluding the UE that uses the licensed band from an optimization target in an unlicensed band system and optimizing the parameters of the unlicensed band in consideration of existence of an STA and the UE that uses the unlicensed band, which is caused by the management server. Furthermore, a pattern when a total of a communication capacity in the unlicensed band and a communication capacity in the licensed band after the optimization of the parameters of the unlicensed band becomes high is adopted for the line selection of the UE, and the parameters of the unlicensed band after the optimization of the line selection are set for an AP, the STA, and the UE of the unlicensed band.