Method and system for controlling downlink transmit power

Abstract

Aspects of the subject disclosure may include, for example, obtaining channel cross correlation data relating to multiple user equipment (UEs) being served in a cell, wherein the channel cross correlation data comprises a correlation coefficient associated with a first UE of the multiple UEs and a second UE of the multiple UEs, identifying that the first UE is experiencing decreasing throughput, responsive to the identifying that the first UE is experiencing decreasing throughput, determining whether the correlation coefficient associated with the first UE and the second UE satisfies a correlation threshold, and, based on a first determination that the correlation coefficient does not satisfy the correlation threshold, adjusting a downlink (DL) transmit power allocation for transmissions directed to the first UE. Other embodiments are disclosed.

What is claimed is: 
     
         1 . A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, the operations comprising:
 obtaining channel cross correlation data relating to multiple user equipment (UEs) being served in a cell, wherein the channel cross correlation data comprises a correlation coefficient associated with a first UE of the multiple UEs and a second UE of the multiple UEs;   identifying that a throughput demand of the second UE satisfies a throughput threshold;   based on the identifying, determining whether the correlation coefficient associated with the first UE and the second UE satisfies a correlation threshold; and   based on a first determination that the correlation coefficient satisfies the correlation threshold, permitting scheduling of parallel transmissions directed to the first UE and the second UE and maintaining a current downlink (DL) transmit power allocation for the first UE.   
     
     
         2 . The non-transitory machine-readable medium of  claim 1 , wherein the determining whether the correlation coefficient satisfies the correlation threshold comprises determining whether the correlation coefficient is less than or equal to the correlation threshold. 
     
     
         3 . The non-transitory machine-readable medium of  claim 1 , wherein the operations further comprise, based on a second determination that the correlation coefficient does not satisfy the correlation threshold:
 preventing scheduling of parallel transmissions directed to the first UE and the second UE;   adjusting a DL transmit power allocation for transmissions directed to the first UE; and   monitoring measurement data from the second UE to detect an impact on signal quality for the second UE, wherein the DL transmit power allocation for the first UE is further adjusted responsive to detecting the impact on signal quality for the second UE.   
     
     
         4 . The non-transitory machine-readable medium of  claim 3 , wherein the adjusting the DL transmit power allocation comprises decreasing the DL transmit power allocation, and wherein the DL transmit power allocation being further adjusted comprises a further decrease in the DL transmit power allocation. 
     
     
         5 . The non-transitory machine-readable medium of  claim 3 , wherein the operations further comprise, based on the second determination that the correlation coefficient does not satisfy the correlation threshold, additionally adjusting a DL transmit power allocation for transmissions directed to the second UE. 
     
     
         6 . The non-transitory machine-readable medium of  claim 5 , wherein the additionally adjusting the DL transmit power allocation for the second UE comprises increasing the DL transmit power allocation for the second UE. 
     
     
         7 . The non-transitory machine-readable medium of  claim 1 , wherein the second UE comprises a fixed wireless device. 
     
     
         8 . The non-transitory machine-readable medium of  claim 1 , wherein the first UE is located within a threshold distance from an edge of the cell. 
     
     
         9 . The non-transitory machine-readable medium of  claim 1 , wherein the multiple UEs are being served in the cell in multi-user (Mu)-multiple-input-multiple-output (MIMO) mode. 
     
     
         10 . The non-transitory machine-readable medium of  claim 1 , wherein the channel cross correlation data comprises respective channel estimations for the multiple UEs. 
     
     
         11 . A device, comprising:
 a processing system including a processor, wherein the processing system is communicatively coupled with a plurality of coherent modular antenna panels; and   a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:   determining channel cross correlation information relating to a plurality of user equipment (UEs), wherein the channel cross correlation information comprises respective channel estimations for the plurality of UEs, and wherein the channel cross correlation information is normalized with a correlation coefficient associated with a first UE of the plurality of UEs and a second UE of the plurality of UEs;   identifying that a throughput demand of the second UE satisfies a throughput threshold;   based on the identifying, determining whether the correlation coefficient associated with the first UE and the second UE satisfies a correlation threshold; and   based on a first determination that the correlation coefficient satisfies the correlation threshold, permitting scheduling of parallel transmissions directed to the first UE and the second UE and maintaining a current downlink (DL) transmit power allocation for the first UE.   
     
     
         12 . The device of  claim 11 , wherein the operations further comprise, based on a second determination that the correlation coefficient does not satisfy the correlation threshold:
 preventing scheduling of parallel transmissions directed to the first UE and the second UE;   adjusting a DL transmit power allocation for transmissions directed to the first UE; and   monitoring measurement data from the second UE to detect an impact on signal quality for the second UE, wherein the DL transmit power allocation for the first UE is further adjusted responsive to detecting the impact on signal quality for the second UE.   
     
     
         13 . The device of  claim 12 , wherein the adjusting the DL transmit power allocation comprises decreasing the DL transmit power allocation, and wherein the DL transmit power allocation being further adjusted comprises a further decrease in the DL transmit power allocation. 
     
     
         14 . The device of  claim 11 , wherein the plurality of UEs is being served in multi-user (Mu)-multiple-input-multiple-output (MIMO) mode. 
     
     
         15 . The device of  claim 14 , wherein each modular antenna panel of the plurality of coherent modular antenna panels comprises a respective group of antenna elements, resulting in multiple groups of antenna elements, and wherein the plurality of UEs is being served in the Mu-MIMO mode via the multiple groups of antenna elements. 
     
     
         16 . A method, comprising:
 receiving, by a processing system including a processor, channel cross correlation data relating to multiple user equipment (UEs) being served in a cell, wherein the channel cross correlation data comprises a correlation coefficient associated with a first UE of the multiple UEs and a second UE of the multiple UEs;   identifying, by the processing system, that a throughput requirement of the second UE satisfies a throughput threshold;   responsive to the identifying, determining, by the processing system, whether the correlation coefficient associated with the first UE and the second UE satisfies a correlation threshold; and   based on a first determination that the correlation coefficient satisfies the correlation threshold, permitting, by the processing system, scheduling of parallel transmissions directed to the first UE and the second UE and maintaining, by the processing system, a current downlink (DL) transmit power allocation for the first UE.   
     
     
         17 . The method of  claim 16 , wherein the determining whether the correlation coefficient satisfies the correlation threshold comprises determining whether the correlation coefficient is less than or equal to the correlation threshold. 
     
     
         18 . The method of  claim 16 , further comprising, based on a second determination that the correlation coefficient does not satisfy the correlation threshold:
 preventing, by the processing system, scheduling of parallel transmissions directed to the first UE and the second UE;   adjusting, by the processing system, a DL transmit power allocation for transmissions directed to the first UE; and   monitoring, by the processing system, measurement data from the second UE to detect an impact on signal quality for the second UE, wherein the DL transmit power allocation for the first UE is further adjusted responsive to detecting the impact on signal quality for the second UE.   
     
     
         19 . The method of  claim 16 , wherein the channel cross correlation data comprises respective channel estimations for the multiple UEs. 
     
     
         20 . The method of  claim 16 , wherein the multiple UEs are being served in the cell in multi-user (Mu)-multiple-input-multiple-output (MIMO) mode.