Controlling a power level of an uplink control channel

Abstract

A technique includes, in mobile station that is part of a coordinated multi-point reception transmission/reception (CoMP) system, receiving a message from a base station identifying at least one parameter specific to the mobile station or specific to a reception set used by the mobile station; and regulating power in communications by the mobile station based at least in part on the parameter(s).

What is claimed is: 
     
         1 . A method comprising:
 in a mobile station that is part of a coordinated multi-point reception transmission/reception (CoMP) system, receiving a message from a base station identifying a parameter to control a power level of an uplink control channel used by the mobile station, the parameter being specifically determined for the mobile station by the base station;   applying the parameter in the mobile station; and   using the applied parameter to regulate power in communications by the mobile station over the uplink control channel.   
     
     
         2 . The method of  claim 1 , wherein the parameter comprises a deltaf-PUCCH parameter. 
     
     
         3 . The method of  claim 1 , wherein receiving the message comprises receiving a unicast message from the base station. 
     
     
         4 . The method of  claim 1 , wherein the message identifies at least one other parameter not specifically determined for the mobile station by the base station and applying the parameter comprises determining an uplink communication power based at least in part on the at least one other parameter and the parameter determined specifically for the mobile station by the base station. 
     
     
         5 . The method of  claim 1 , wherein the receiving comprises receiving a system information block message. 
     
     
         6 . The method of  claim 1 , wherein the message further identifies a change in a reception point set configuration for the mobile station, the method further comprising changing the reception point set configuration in the mobile station in response to the message. 
     
     
         7 . A mobile station comprising:
 a transceiver to receive a message from a base station of a coordinated multi-point reception transmission/reception (CoMP) system identifying power control parameters indexed according to a plurality of reception point set configurations; and   at least one processor coupled to the transceiver to:
 selectively apply the power control parameters based at least in part on a reception point set configuration used by the mobile station; and 
 regulate power in communications by the mobile station over the uplink control channel in response to the selective application of the power control parameters. 
   
     
     
         8 . The mobile station of  claim 7 , wherein the at least one processor is adapted to select the power control parameters corresponding to the reception point set configuration used by the mobile station. 
     
     
         9 . The mobile station of  claim 7 , wherein the parameters comprise a deltaf-PUCCH parameter. 
     
     
         10 . The mobile station of  claim 7 , wherein the message comprises a broadcast message, the broadcast message being received by at least one other mobile station. 
     
     
         11 . The mobile station of  claim 7 , wherein the message comprises a system information block message. 
     
     
         12 . The mobile station of  claim 7 , wherein the at least one processor is further adapted to store the power control parameters in the mobile station. 
     
     
         13 . The mobile station of  claim 7 , wherein the transceiver is further adapted to receive another message in the mobile station comprising an identifier identifying a reception point set configuration for the mobile station, and the at least one processor is further adapted to apply the identifier to select one of the power control parameters. 
     
     
         14 . The mobile station of  claim 7 , wherein the at least one processor is further adapted to select one of the power configuration parameters and combine the selected power configuration parameter with at least one other power configuration parameter to determine an uplink power for the mobile station. 
     
     
         15 . At least one machine readable medium that includes a plurality of instructions that when executed by a computing device cause the computing device to:
 selectively apply power control parameters based at least in part on a reception point set configuration used by a mobile station, the power control parameters being indicated by a message received from a base station of a coordinated multi-point reception transmission/reception (CoMP) system and being indexed according to a plurality of reception point set configurations; and   regulate power in communications by the mobile station over the uplink control channel in response to the selective application of the power control parameters.   
     
     
         16 . The at least one machine readable medium of  claim 15 , wherein the parameters comprise a deltaf-PUCCH parameter.