SELECTING A COMMUNICATION CHANNEL BASED ON A NEIGHBORING CELL CONSTRAINT

摘要

Provided are methods and apparatus for selecting a channel to use for communicating. The methods and apparatus select a channel having the least interference and minimize a number of different channels in use. For example, a provided method includes calculating a utility value for each channel in a plurality of channels by weighting, based on a number of the neighborhood small cells (NSC) using each channel in the plurality of channels, both a respective modified non-NSC received signal strength indication (RSSI) and a respective modified reference signal received power (RSRP). The non-NSC RSSI is calculated by subtracting a respective RSRP from a total RSSI. The respective modified RSRP for each channel in the plurality of channels is calculated by applying the respective RSRP to a cumulative distribution function. The channel having the highest or the lowest utility value is chosen as the channel to use for the communicating.

主权项

1. A method for selecting a channel to use for communicating, comprising:
retrieving, for each channel in a plurality of channels, a respective stored user equipment report for the channel, wherein the respective stored user equipment report includes data describing a detected neighborhood small cell (NSC) that is operating on the channel and a respective reference signal received power (RSRP) from the detected NSC; computing, for each channel in the plurality of channels, a non-NSC related received signal strength indication (RSSI) by subtracting the respective RSRP from a total received signal strength indication; computing a modified non-NSC RSSI by applying the non-NSC RSSI to a cumulative distribution function; computing, for each channel in the plurality of channels, a respective modified RSRP by applying the respective RSRP for each channel to a cumulative distribution function; calculating, using a processor, a utility value for each channel in the plurality of channels by weighting, based on a number of the NSCs using each respective channel in the plurality of channels, both the respective modified non-NSC RSSI for each channel and the respective modified RSRP for each channel; and choosing the channel having the highest utility value or the lowest utility value as the channel to use for the communicating.