Method and apparatus for configuring traffic-to-pilot power ratios in heterogeneous networks

Abstract

A method, an apparatus, and a computer program product for wireless communication are provided in connection with specifying a traffic-to-pilot (T/P) ratio per subframe and/or resource block to allow a base station to transmit over the subframes and/or resource blocks using varying transmit powers. In one example, a device communicating with the base station can receive a plurality of T/P ratios each related to a power used by the base station to transmit over one of a plurality of carriers in a specific subframe or resource block, determine a power of a reference signal received from the base station over a carrier of the plurality of carriers, and process a data signal received over the carrier within the specific subframe or resource block based in part on applying, to the power of the reference signal, a T/P ratio of the plurality of T/P ratios corresponding to the carrier.

What is claimed is: 
     
         1 - 44 . (canceled) 
     
     
         45 . A method for processing signals from a base station based on a traffic-to-pilot (T/P) ratio, comprising:
 receiving a reference signal from a base station and an interfering reference signal from an interfering base station over a specific subframe or resource block;   receiving a first T/P ratio utilized by the interfering base station to transmit over the specific subframe or resource block;   partially canceling an interfering data signal of the interfering base station from a data signal of the base station received in the specific subframe or resource block based in part on the first T/P ratio;   receiving a second T/P ratio related to a power used by the base station to transmit the data signal in the specific subframe or resource block;   determining a power of the reference signal received from the base station; and   processing the data signal following partially canceling the interfering data signal based in part on applying the second T/P ratio to the power of the reference signal.   
     
     
         46 . The method of  claim 45 , wherein the reference signal is a common reference signal (CRS). 
     
     
         47 . The method of  claim 45 , wherein the interfering reference signal is a common reference signal (CRS). 
     
     
         48 . The method of  claim 45 , wherein the processing of the data signal comprises using the power of the reference signal to demodulate the data signal or to report channel state information based on the data signal. 
     
     
         49 . The method of  claim 45 , wherein the partially canceling of the interfering data signal is performed as part of demodulating the data signal. 
     
     
         50 . An apparatus for processing signals from a base station based on a traffic-to-pilot (T/P) ratio, comprising:
 means for receiving a reference signal from a base station and an interfering reference signal from an interfering base station over a specific subframe or resource block;   means for receiving a first T/P ratio utilized by the interfering base station to transmit over the specific subframe or resource block;   means for partially canceling an interfering data signal of the interfering base station from a data signal of the base station received in the specific subframe or resource block based in part on the first T/P ratio;   means for receiving a second T/P ratio related to a power used by the base station to transmit the data signal in the specific subframe or resource block;   means for determining a power of the reference signal received from the base station; and   means for processing the data signal following partially canceling the interfering data signal based in part on applying the second T/P ratio to the power of the reference signal.   
     
     
         51 . The apparatus of  claim 50 , wherein the reference signal is a common reference signal (CRS). 
     
     
         52 . The apparatus of  claim 50 , wherein the interfering reference signal is a common reference signal (CRS). 
     
     
         53 . The apparatus of  claim 50 , wherein the means for processing of the data signal is further configured to use the power of the reference signal to demodulate the data signal, or to report channel state information based on the data signal. 
     
     
         54 . The apparatus of  claim 50 , wherein the partially canceling of the interfering data signal is performed as part of demodulating the data signal. 
     
     
         55 . An apparatus for wireless communication, comprising:
 a memory configured to store data;   one or more processors communicatively coupled with the memory, wherein the one or more processors and the memory are configured to:
 receive a reference signal from a base station and an interfering reference signal from an interfering base station over a specific subframe or resource block; 
 receive a first T/P ratio utilized by the interfering base station to transmit over the specific subframe or resource block; 
 partially cancel an interfering data signal of the interfering base station from a data signal of the base station received in the specific subframe or resource block based in part on the first T/P ratio; 
   receive a second T/P ratio related to a power used by the base station to transmit the data signal in the specific subframe or resource block;   determine a power of the reference signal received from the base station; and   process the data signal following partially canceling the interfering data signal based in part on applying the second T/P ratio to the power of the reference signal.   
     
     
         56 . The apparatus of  claim 55 , wherein the reference signal is a common reference signal (CRS). 
     
     
         57 . The apparatus of  claim 55 , wherein the interfering reference signal is a common reference signal (CRS). 
     
     
         58 . The apparatus of  claim 55 , wherein the one or more processors and the memory are configured to use the power of the reference signal to demodulate the data signal or to report channel state information based on the data signal. 
     
     
         59 . The apparatus of  claim 55 , wherein the partially canceling of the interfering data signal is performed as part of demodulating the data signal. 
     
     
         60 . A non-transitory computer-readable medium storing computer-executable code for processing signals from a base station based on a traffic-to-pilot (T/P) ratio, comprising:
 code for receiving a reference signal from a base station and an interfering reference signal from an interfering base station over a specific subframe or resource block;   code for receiving a first T/P ratio utilized by the interfering base station to transmit over the specific subframe or resource block;   code for partially canceling an interfering data signal of the interfering base station from a data signal of the base station received in the specific subframe or resource block based in part on the first T/P ratio;   code for receiving a second T/P ratio related to a power used by the base station to transmit the data signal in the specific subframe or resource block;   code for determining a power of the reference signal received from the base station; and   code for processing the data signal following partially canceling the interfering data signal based in part on applying the second T/P ratio to the power of the reference signal.   
     
     
         61 . The computer-readable medium of  claim 60 , wherein the reference signal is a common reference signal (CRS). 
     
     
         62 . The computer-readable medium of  claim 60 , wherein the interfering reference signal is a common reference signal (CRS). 
     
     
         63 . The computer-readable medium of  claim 60 , wherein the computer-readable medium further comprises code for using the power of the reference signal to demodulate the data signal or to report channel state information based on the data signal. 
     
     
         64 . The computer-readable medium of  claim 60 , wherein the partially canceling of the interfering data signal is performed as part of demodulating the data signal.