Patent Number: 7,613,432

Title: Method of controlling mobile communication system, control device, and mobile communication system

Abstract: A mobile communication system controls switching a transmission diversity system for each channel, and improves the quality of the channel. When the channel type in an uplink is a channel for transmitting voice, open loop transmission diversity is used (steps S1.fwdarw.S3). When the channel type in an uplink is a channel for transmitting a packet, closed loop transmission diversity is used (steps S1.fwdarw.S2). Since the open loop transmission diversity or the closed loop transmission diversity which ever is more appropriate can be used, a transmission diversity system can be appropriately switched for each channel, thereby improving the quality of the channel.

Inventors: Ishii; Hiroyuki (Yokosuka, JP), Sato; Takuya (Yokohama, JP), Ando; Hidehiro (Yokohama, JP)

Assignee: NTT DoCoMo, Inc.

International Classification: H04B 7/02 (20060101); H04L 1/02 (20060101)

Expiration Date: 1/03/02017