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 of transmission using varying power in a subframe or resource block, comprising:
 transmitting a reference signal over each of multiple carriers;   determining a transmit power for communicating data signals over each of the multiple carriers;   indicating a traffic-to-pilot (T/P) ratio for each of the multiple carriers to a device specifying the transmit power for the data signals as compared to a power of the reference signals over each of the multiple carriers; and   transmitting the data signals over each of the multiple carriers according to the transmit power.   
     
     
         46 . The method of  claim 45 , further comprising receiving channel state information feedback related to each of the multiple carriers from the device. 
     
     
         47 . A method of transmission using varying power in a subframe or resource block, comprising:
 transmitting a reference signal;   negotiating a subframe or resource block with a base station as being protected resources for the base station;   determining a transmit power for communicating data signals over the protected resources for the base station;   indicating one or more traffic-to-pilot (T/P) ratios to a device for the transmit power in the protected resources as compared to a power of the reference signal; and   transmitting the data signals over the protected resources according to the transmit power.   
     
     
         48 . The method of  claim 47 , wherein the negotiating further comprises negotiating the transmit power over the subframe or resource block. 
     
     
         49 . The method of  claim 47 , further comprising:
 receiving other T/P ratios from other base stations; and   communicating the other T/P ratios to the device for partially canceling an interfering reference signal from the other base stations.   
     
     
         50 . The method of  claim 47 , wherein the transmitting of the reference signal comprises transmitting over at least one carrier of multiple carriers where carrier aggregation of the multiple carriers is provided for the device. 
     
     
         51 . The method of  claim 47 , wherein the negotiating is performed in a time domain using enhanced inter-cell interference coordination (eICIC) or a frequency domain using inter-cell interference coordination (ICIC). 
     
     
         52 . An apparatus for transmission using varying power in a subframe or resource block, comprising:
 means for transmitting a reference signal over each of multiple carriers;   means for determining a transmit power for communicating data signals over each of the multiple carriers;   means for indicating a traffic-to-pilot (T/P) ratio for each of the multiple carriers to a device specifying the transmit power for the data signals as compared to a power of the reference signals over each of the multiple carriers; and   means for transmitting the data signals over each of the multiple carriers according to the transmit power.   
     
     
         53 . The apparatus of  claim 52 , further comprising means for receiving channel state information feedback related to each of the multiple carriers from the device. 
     
     
         54 . An apparatus for transmission using varying power in a subframe or resource block, comprising:
 means for transmitting a reference signal;   means for negotiating a subframe or resource block with a base station as being protected resources for the base station;   means for determining a transmit power for communicating data signals over the protected resources for the base station;   means for indicating one or more traffic-to-pilot (T/P) ratios to a device for the transmit power in the protected resources as compared to a power of the reference signal; and   means for transmitting the data signals over the protected resources according to the transmit power.   
     
     
         55 . The apparatus of  claim 54 , wherein the means for negotiating is further configured to negotiate the transmit power over the subframe or resource block. 
     
     
         56 . The apparatus of  claim 54 , further comprising:
 means for receiving other T/P ratios from other base stations; and   means for communicating the other T/P ratios to the device for partially canceling an interfering reference signal from the other base stations.   
     
     
         57 . The apparatus of  claim 54 , wherein the means for transmitting of the reference signal is further configured to transmit over at least one carrier of multiple carriers where carrier aggregation of the multiple carriers is provided for the device. 
     
     
         58 . The apparatus of  claim 54 , wherein the negotiating is performed in a time domain using enhanced inter-cell interference coordination (eICIC) or a frequency domain using inter-cell interference coordination (ICIC). 
     
     
         59 . An apparatus for wireless communication, comprising:
 a memory configured to store data; and   one or more processors communicatively coupled with the memory, wherein the one or more processors and the memory are configured to:
 transmit a reference signal over each of multiple carriers; 
 determine a transmit power for communicating data signals over each of the multiple carriers; 
 indicate a traffic-to-pilot (T/P) ratio for each of the multiple carriers to a device specifying the transmit power for the data signals as compared to a power of the reference signals over each of the multiple carriers; and 
 transmit the data signals over each of the multiple carriers according to the transmit power. 
   
     
     
         60 . The apparatus of  claim 59 , wherein the one or more processors and the memory are further configured to receive channel state information feedback related to each of the multiple carriers from the device. 
     
     
         61 . An apparatus for wireless communication, comprising:
 a memory configured to store data; and   one or more processors communicatively coupled with the memory, wherein the one or more processors and the memory are configured to:
 transmit a reference signal; 
 negotiate a subframe or resource block with a base station as being protected resources for the base station; 
 determine a transmit power for communicating data signals over the protected resources for the base station; 
 indicate one or more traffic-to-pilot (T/P) ratios to a device for the transmit power in the protected resources as compared to a power of the reference signal; and 
 transmit the data signals over the protected resources according to the transmit power. 
   
     
     
         62 . The apparatus of  claim 61 , wherein the one or more processors and the memory are further configured to use negotiate the transmit power over the subframe or resource block. 
     
     
         63 . The apparatus of  claim 61 , wherein the one or more processors and the memory are further configured to:
 receive other T/P ratios from other base stations; and   communicate the other T/P ratios to the device for partially canceling an interfering reference signal from the other base stations.   
     
     
         64 . The apparatus of  claim 61 , wherein the one or more processors and the memory are further configured to transmit over at least one carrier of multiple carriers where carrier aggregation of the multiple carriers is provided for the device. 
     
     
         65 . The apparatus of  claim 61 , wherein the negotiating is performed in a time domain using enhanced inter-cell interference coordination (eICIC) or a frequency domain using inter-cell interference coordination (ICIC). 
     
     
         66 . A non-transitory computer-readable medium storing computer-executable code for transmission using varying power in a subframe or resource block, comprising:
 code for transmitting a reference signal over each of multiple carriers;   code for determining a transmit power for communicating data signals over each of the multiple carriers;   code for indicating a traffic-to-pilot (T/P) ratio for each of the multiple carriers to a device specifying the transmit power for the data signals as compared to a power of the reference signals over each of the multiple carriers; and   code for transmitting the data signals over each of the multiple carriers according to the transmit power.   
     
     
         67 . The computer program product of  claim 66 , further comprising:
 code for receiving channel state information feedback related to each of the multiple carriers from the device.   
     
     
         68 . A non-transitory computer-readable medium storing computer-executable code for transmission using varying power in a subframe or resource block, comprising:
 transmitting a reference signal;   negotiating a subframe or resource block with a base station as being protected resources for the base station;   determining a transmit power for communicating data signals over the protected resources for the base station;   indicating one or more traffic-to-pilot (T/P) ratios to a device for the transmit power in the protected resources as compared to a power of the reference signal; and   transmitting the data signals over the protected resources according to the transmit power.   
     
     
         69 . The computer program product of  claim 68 , further comprising:
 code for negotiating the transmit power over the subframe or resource block.   
     
     
         70 . The computer program product of  claim 68 , further comprising:
 code for receiving other T/P ratios from other base stations; and   code for communicating the other T/P ratios to the device for partially canceling an interfering reference signal from the other base stations.   
     
     
         71 . The computer program product of  claim 68 , further comprising:
 code for transmitting over at least one carrier of multiple carriers where carrier aggregation of the multiple carriers is provided for the device.   
     
     
         72 . The computer-readable medium of  claim 68 , wherein the negotiating is performed in a time domain using enhanced inter-cell interference coordination (eICIC) or a frequency domain using inter-cell interference coordination (ICIC).