Title:
METHOD FOR CONTROLLING TRANSMISSION POWER IN CDMA MOBILE COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP3501039
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a transmission power control method in a CDMA mobile communication system, by which reference SIR (the ratio of desired wave reception power to interference wave reception power) to be referred is changed at high speed by the high speed closed loop control of an incoming line.
SOLUTION: It is checked whether a system is provided with a single connection radio base station device (BTS) or the plurality of devices (S1), the selection of CH reception SIR at every connection BTS and the calculation of the selected value are executed when a result after checking is plurality (S2 and S3) and a reference value Sref is changed in accordance with the calculated result (S4). When the result of the checking is singularity, the reference value Sref is made to be an upper limit (S5), the reference value Sref after change is reported to the whole connection BTSs in each process (S6) and the reference value Sref is decided in accordance with the change of selection synthesizing gain owing to the increase/decrease of the number of the connection BTSs. Then reference SIR is changed at high speed in accordance with the change of selection synthesizing gain owing to the increase/decrease of the number of the connection BTSs.
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Inventors:
Yuki Miyamoto
Application Number:
JP28665599A
Publication Date:
February 23, 2004
Filing Date:
October 07, 1999
Export Citation:
Assignee:
NEC
International Classes:
H04W52/04; H04B7/005; H04B7/216; H04B7/26; H04J13/00; H04W52/12; H04W52/24; H04W52/40; (IPC1-7): H04B7/26; H04B7/216; H04J13/00
Domestic Patent References:
| JP7107033A | ||||
| JP7298334A |
Attorney, Agent or Firm:
Takao Maruyama