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US 2012/0231776 A1Published application
Communicating a Broadcast Message to Change Data Rates of Mobile Stations
AssigneeEricsson Inc.
InventorsMo-Han Fong, Jun Li, Sophie S. Vrzic, Ali Iraqi
Life of this patent
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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.
Claims25
A method for use in a wireless communications network, comprising:
- receiving wireless transmissions from plural mobile stations over a reverse wireless link;
- and
- controlling transmission rates of the wireless transmissions from the plural mobile stations by sending a broadcast message to the plural mobile stations, the broadcast message containing an indication that the plural mobile stations are to change data rates for transmissions over the reverse wireless link, and a particular data rate to be used by the plural mobile stations over the reverse wireless link.
A method for use in a wireless communications network, comprising:
- receiving wireless transmissions from plural mobile stations over a reverse wireless link;
- and
- sending a broadcast message to the plural mobile stations, the broadcast message containing an indication that the plural mobile stations are to change data rates for the wireless transmissions over the reverse wireless link, wherein sending the broadcast message to the plural mobile stations comprises sending the broadcast message to cause each of the plural mobile stations to set a data rate to a value less than or equal to an respective autonomous data rate, wherein the respective autonomous data rate is useable by the corresponding mobile station operating in autonomous mode in which the corresponding mobile station is able to transmit data over the reverse wireless link without being scheduled.
A computer circuit comprising at least one non-transitory storage medium containing instructions that when executed cause a system in a wireless communications network to:
- receive wireless transmissions from plural mobile stations over a reverse wireless link;
- and
- send a grant message to the plural mobile stations, the grant message containing an identifier, the identifier set to a first value to uniquely identify one of the plural mobile stations that is to change data rate for the wireless transmission over the reverse wireless link, and the identifier set to a predetermined value to provide a broadcast indication for indicating that the plural mobile stations are to change data rates for the wireless transmissions over the reverse wireless link.
A mobile station comprising:
- an interface to receive a broadcast message from a base station, said broadcast message targeted to plural mobile stations, wherein the broadcast message includes a data rate assignment field that comprises a particular data rate to be used by the plural mobile stations over a reverse wireless link;
- and
- a controller to change a data rate of transmission over the reverse wireless link to the particular data rate specified by the broadcast message.
A mobile station comprising:
- an interface to receive a broadcast message from a base station transmitted to plural mobile stations, said broadcast message including an identifier that can be set to a first value to uniquely identify a specific mobile station, or a predetermined value that provides a broadcast indication;
- and
- a controller to change a data rate of transmission over a reverse wireless link in response to the broadcast message, said controller configured to change the data rate of transmission to be less than or equal to an autonomous data rate when:
- the identifier in the broadcast message is set to the predetermine value that provides a broadcast indication;
- or
- the identifier in the broadcast message is set to the first value to uniquely identify a specific mobile station and the mobile station is the specific mobile station being uniquely identified.
3 more elements
A base station comprising:
- a subsystem to communicate data to plural mobile stations over a wireless link;
- and
- a processor to send a broadcast message to the plural mobile stations, the broadcast message including an indication that the plural mobile stations are to change data rates for transmissions over a reverse wireless link, and a particular data rate that is to be used by the plural mobile stations over the reverse wireless link.
Dependencies are inferred from the claim text.