Communicating a broadcast message to change data rates of mobile stations

• US 9,319,920 B2
• Filed: 09/05/2013
• Issued: 04/19/2016
• Est. Priority Date: 03/06/2003
• Status: Active Grant

• Current Assignee: Ericsson AB (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson AB (Telefonaktiebolaget LM Ericsson)
• Inventors: Fong, Mo-Han, Li, Jun, Vrzic, Sophie S., Iraqi, Ali
• Primary Examiner(s): Gonzalez, Amancio
• Application Number:
  US14/018,575
• Publication Number:
  US 20140016462A1
• Time in Patent Office: 957 Days
• Field of Search: 370/335, 370/342, 370/468, 370/493, 455/69, 455/422, 455/450, 455/452
• US Class Current: 1/1
• CPC Class Codes: H04L 47/263 Rate modification at the source after receiving feedback
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 28/0205 at the air interface dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A wireless communications network includes a base station to communicate with plural mobile stations over a wireless link. A broadcast message is sent to the plural mobile stations, with the broadcast message containing an indication for indicating to the plural mobile stations that the mobile stations are to change data rates for transmissions over a reverse wireless link.

Claims

1. A method performed by a mobile station, comprising:

receiving a broadcast message from a base station transmitted to a plurality of mobile stations, the message including an indication that the plurality of mobile stations are to adjust respective maximum autonomous data rates by an incrementing or decrementing step; and

adjusting a maximum autonomous data rate specified for the mobile station by the incrementing or decrementing step, wherein the maximum autonomous data rate specifies the maximum allowable transmission rate during an autonomous mode operation by the mobile station on a reverse packet data channel.

2. The method of claim 1, further comprising changing a data rate of transmission over the reverse packet data channel to be less than or equal to the adjusted maximum autonomous data rate.

3. The method of claim 1, wherein the broadcast message is transmitted over a shared control channel monitored by the plurality of mobile stations.

4. The method of claim 3, wherein the shared control channel is a forward grant channel.

5. A mobile station comprising:

an interface for receiving a broadcast message from a base station transmitted to a plurality of mobile stations, the message including an indication that the plurality of mobile stations are to adjust respective maximum autonomous data rates by an incrementing or decrementing step; and

a controller for adjusting a maximum autonomous data rate specified for the mobile station by the incrementing or decrementing step, wherein the maximum autonomous data rate specifies the maximum allowable transmission rate during an autonomous mode operation by the mobile station on a reverse packet data channel.

6. The mobile station of claim 5, wherein the controller is further configured to change a data rate of transmission over a reverse packet data channel to be less than or equal to the adjusted maximum autonomous data rate.

7. The mobile station of claim 5, wherein the broadcast message is transmitted over a shared control channel monitored by the plurality of mobile stations.

8. The mobile station of claim 7, wherein the shared control channel is a forward grant channel.

9. A method for use in a wireless communications network, comprising:

communicating data to a plurality of mobile stations over a wireless link; and

sending a broadcast message to the plurality of mobile stations, wherein the broadcast message includes an indicator that can be set to a first value or a second value;

wherein, when the indicator is set to a first value, the broadcast message indicates to a particular mobile station identified by the first value that this particular mobile station is to change to a data rate specified in the broadcast message, and wherein, when the indicator is set to a second value, the broadcast message indicates to the plurality of mobile stations that the plurality of mobile stations are to change respective data rates to be less than or equal to an autonomous data rate of each of the plurality of mobile stations.