Self-organizing network control for PUCCH resources

摘要

Automatically adjust the size of a Physical Uplink Control Channel, PUCCH, of an uplink communication subframe. In a particular embodiment, the size of a semi-static region of the PUCCH is adjusted. The adjustment is based on a utilization factor of the PUCCH over a time period. The adjustment can also be based on the connection factor (connections between the wireless terminals and the cell) and/or based on the utilization factor of a PUSCH (Physical Uplink Shared Channel). The result is an efficient resource utilization on the PUCCH, and a properly dimensioned PUCCH region.

主权项

1. A method to schedule a physical uplink control channel (PUCCH) of a cell in a wireless network for one or more wireless terminals, comprising:
determining, over a time period, a shared uplink resource utilization including any one or more of a PUCCH utilization factor for a semi-static uplink control information (UCI) component of a semi-static PUCCH region, a connection factor of the cell, and a physical uplink shared channel (PUSCH) utilization factor of the cell; determining whether the semi-static PUCCH region should be adjusted based on the determined shared uplink resource utilization; and adjusting the semi-static PUCCH region when it is determined that the semi-static PUCCH region should be adjusted; wherein determining the PUCCH utilization factor for the semi-static UCI component comprises:
determining a UCI component ratio of the semi-static UCI component for each of a plurality of uplink subframes over the time period; anddetermining the PUCCH utilization factor based on a distribution of the UCI component ratios over the time period, wherein the UCI component ratio is a ratio of an amount of semi-static PUCCH resources allocated for the semi-static UCI component relative to an entire amount of the semi-static PUCCH resources available in one uplink subframe.