Title:
上りリンク無線伝送における複数基地局と移動局の同期システム及び方法
Document Type and Number:
Japanese Patent JP5758826
Kind Code:
B2
Abstract:
There is provided a wireless communication system which can synchronize a mobile station with a destination base station the moment the mobile station determines to switch base stations. Each base station generates synchronization information to synchronize the mobile station with the base station from a forward pilot signal received from the mobile station, generates forward propagation quality information from the forward pilot signal, and generates and transmits a reverse control signal including the synchronization information and the forward propagation quality information. A mobile station generates and transmits a forward pilot signal, receives a signal including the reverse control signal from each of the base stations, extracts a forward propagation quality and the synchronization information with the base station from the received reverse control signal, selects an optimum base station as a new serving base station from the received forward propagation quality, and performs transmission such that a transmission timing of the forward pilot signal is changed into a transmission timing based on the synchronization information extracted from the reverse control signal of the selected base station when the selected base station is different from the serving base station.
Inventors:
Kenyan Koyanagi
Yoshikazu Kakura
Engine
Naoko Kuroda
Yoshikazu Kakura
Engine
Naoko Kuroda
Application Number:
JP2012061936A
Publication Date:
August 05, 2015
Filing Date:
March 19, 2012
Export Citation:
Assignee:
NEC
International Classes:
H04W56/00; H04W36/08; H04W36/30
Domestic Patent References:
| JP2003169368A | ||||
| JP2005117310A | ||||
| JP2003348643A |
Other References:
SK Telecom,A candidate for three-way handover on USTS,R2-011190,3GPP TSG WG2 #21,2001.05.25
SK Telecom,A candidate for three-way handover on USTS,R2-011305,3GPP TSG WG2 #21,2001.05.25
SK Telecom,A candidate for three-way handover on USTS,TSGR3#21(01)1743,3GPP TSG WG3 meeting#21,2001.05.25
SK Telecom,A candidate for three-way handover on USTS,R2-011305,3GPP TSG WG2 #21,2001.05.25
SK Telecom,A candidate for three-way handover on USTS,TSGR3#21(01)1743,3GPP TSG WG3 meeting#21,2001.05.25
Attorney, Agent or Firm:
Michio Nagai
Masao Sekiguchi
Takamasa Nakano
Masao Sekiguchi
Takamasa Nakano