Methods for Quality-Aware Reporting of RSSI-Based Measurements to Avoid RSSI Window Split

Abstract

According to an aspect, a network node serving a wireless device obtains a quality requirement for a wireless device measurement that is based on RSSI measurement samples and determines configuration parameters for the wireless device based on the quality requirement. The network node sends the determined configuration parameters to the wireless device. The wireless device obtains a set of the configuration parameters for RSSI measurements. The configuration parameters specify a length for RSSI measurement durations in which RSSI measurement samples are obtained and an RSSI measurement periodicity for the RSSI measurement durations. The wireless device adapts operation of the UE with respect to the measurement that is based on RSSI measurement samples, based on a quality requirement for the measurement that is based on RSSI measurement samples.

What is claimed is: 
     
         1 . A method, in a network node operating in a wireless network and serving a wireless device, the method comprising:
 determining one or more configuration parameters for the wireless device, based on a quality requirement for a wireless device measurement that is based on Received Signal Strength Indicator (RSSI) measurement samples; and   sending the determined one or more configuration parameters to the wireless device.   
     
     
         2 . The method of  claim 1 , wherein the one or more configuration parameters relate to one of or more of:
 a reporting interval for the wireless device measurement, a length for RSSI measurement durations in which RSSI measurement samples are obtained, an RSSI measurement periodicity for the RSSI measurement durations, a time offset for the RSSI duration windows, and a condition or configuration for controlling reporting of the wireless device measurement.   
     
     
         3 . The method of  claim 1 , wherein determining the one or more configuration parameters comprises determining a length of a reporting interval to ensure that all or a certain minimum number of RSSI measurement samples from within a RSSI measurement duration are obtained within the reporting interval. 
     
     
         4 . The method of  claim 1 , wherein determining the one or more configuration parameters comprises determining a time offset for the RSSI measurement durations, so as to shift the RSSI measurement durations to ensure that all or a certain minimum number of RSSI measurement samples from within a RSSI measurement duration are obtained within a reporting interval. 
     
     
         5 . The method of  claim 1 , wherein determining the one or more configuration parameters comprises determining the length for RSSI measurement durations, so as to fit within a reporting interval. 
     
     
         6 . The method of  claim 1 , the method further comprising obtaining the quality requirement for the wireless device measurement that is based on RSSI measurement samples. 
     
     
         7 . A network node adapted for operation in a wireless network and for serving a wireless device, wherein the network node comprises:
 a transceiver circuit;   a processor operatively coupled to the transceiver circuit; and   a memory circuit operatively coupled to the processor and comprising computer program instructions for execution by the processor and configured so as to cause the network node, when the computer program instructions are executed, to:
 determine one or more configuration parameters for the wireless device, based on a quality requirement for a wireless device measurement that is based on Received Signal Strength Indicator (RSSI) measurement samples; and 
 send the determined one or more configuration parameters to the wireless device. 
   
     
     
         8 . The network node of  claim 7 , wherein the one or more configuration parameters relate to one of or more of any of:
 a reporting interval for the wireless device measurement,   a length for RSSI measurement durations in which RSSI measurement samples are obtained,   an RSSI measurement periodicity for the RSSI measurement durations,   a time offset for the RSSI duration windows, and   a condition or configuration for controlling reporting of the wireless device measurement.   
     
     
         9 . The network node of  claim 7 , wherein the network node is adapted to determine a length of a reporting interval to ensure that all or a certain minimum number of RSSI measurement samples from within a RSSI measurement duration are obtained within the reporting interval. 
     
     
         10 . The network node of  claim 7 , wherein the network node is adapted to determine a time offset for the RSSI measurement durations, so as to shift the RSSI measurement durations to ensure that all or a certain minimum number of RSSI measurement samples from within a RSSI measurement duration are obtained within a reporting interval. 
     
     
         11 . The network node of  claim 7 , wherein the network node is adapted to determine the length for RSSI measurement durations, so as to fit within a reporting interval. 
     
     
         12 . A non-transitory computer-readable medium comprising, stored thereupon, a computer program product comprising program instructions for execution by a processor of a network node operating in a wireless network and serving a wireless device, the program instructions comprising instructions for:
 determining one or more configuration parameters for the wireless device, based on a quality requirement for a wireless device measurement that is based on Received Signal Strength Indicator (RSSI) measurement samples; and   sending the determined one or more configuration parameters to the wireless device;   wherein the one or more configuration parameters relate to one of or more of:   a reporting interval for the wireless device measurement, a length for RSSI measurement durations in which RSSI measurement samples are obtained, an RSSI measurement periodicity for the RSSI measurement durations, a time offset for the RSSI duration windows, and a condition or configuration for controlling reporting of the wireless device measurement.