# US 2006/0215602 A1 · Transmission rate control method, transmission rate control system, and mobile station

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- Number: US 2006/0215602 A1
- Document ID: US20060215602A1
- Status: Published application
- Kind: A1
- Application number: 11/378,337
- Filed: 2006-03-20
- Published: 2006-09-28
- Earliest claimed: 2005-03-22
- Assignees: Ntt Docomo, Inc.
- Inventors: Masafumi Usuda; Anil Umesh; Takehiro Nakamura
- Web page: https://patentgrep.com/patent/US20060215602A1

## CPC

- H04W 28/22: Negotiating communication rate
- H04W 88/02: Terminal devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A transmission rate control method for controlling a transmission rate of a channel to which the transmission rate control method is applied, include: notifying, at a radio network controller, at a timing of a call setup or the like, a primary allowable transmission rate of the channel to which the transmission rate control method is applied; starting, at a mobile station, after the call setup, transmission at a transmission rate below the primary allowable transmission rate, when data to be transmitted is generated; and controlling, at the mobile station, the transmission rate of the channel to which the transmission rate control method is applied, based on an Relative Grant Channel transmitted from a radio base station.

## Claims

### Claim 1

A transmission rate control method for controlling a transmission rate of a channel to which the transmission rate control method is applied, comprising:
notifying, at a radio network controller, at a timing of a call setup, a primary allowable transmission rate of the channel to which the transmission rate control method is applied;
starting, at a mobile station, after the call setup, transmission at a transmission rate below or equal to the primary allowable transmission rate, when data to be transmitted is generated; and
controlling, at the mobile station, the transmission rate of the channel to which the transmission rate control method is applied, based on a Relative Grant Channel transmitted from a radio base station.

### Claim 2

A mobile station for controlling a transmission rate of a channel to which a transmission rate control method is applied;
a receiving unit configured to receive, from a radio network controller, at a timing of call setup, a primary allowable transmission rate of the channel to which a transmission rate control method is applied;
a starting unit configured to start, after the call setup, transmission at a transmission rate below or equal to the primary allowable transmission rate, when data to be transmitted is generated; and
a controlling unit configured to control the transmission rate of the channel to which the transmission rate control method is applied, based on a Relative Grant Channel transmitted from a radio base station.

### Claim 3

A transmission rate control system for controlling a transmission rate of a channel to which the transmission rate control method is applied, comprising:
a radio network controller for transmitting to the mobile station, at a timing of a call setup, a primary allowable transmission rate of the channel to which a transmission rate control method is applied, to instruct the mobile station to start, after the call setup, transmission at a transmission rate below or equal to the primary allowable transmission rate, when data to be transmitted is generated; and
a radio base station for transmitting a Relative Grant Channel to the mobile station for instructing the mobile station to control the transmission rate of the channel to which the transmission rate control method is applied, based on the Relative Grant Channel received from the radio base station.