Dynamic receive diversity selection for LTE

摘要

Methods, apparatuses and computer readable media are described that configure wireless circuitry in a wireless communication device. The wireless communication device establishes a connection to a wireless network using wireless circuitry that includes a first radio frequency receive signal chain and a second radio frequency receive signal chain. The wireless communication device monitors uplink and downlink traffic activity communicated between the wireless communication device and the wireless network and measures downlink radio frequency receive signal conditions at the wireless communication device. The wireless communication device reconfigures the wireless circuitry to enable receive diversity or to disable receive diversity at the wireless communication device based on the monitored traffic activity and the measured downlink radio frequency receive signal conditions.

主权项

1. A method to configure wireless circuitry in a wireless communication device, the method comprising:
by the wireless communication device:
establishing a connection to a wireless network using wireless circuitry that includes a first radio frequency receive signal chain and a second radio frequency receive signal chain;monitoring traffic activity communicated between the wireless communication device and the wireless network over the connection, wherein: i) monitoring traffic activity includes counting a number of sub-frames in a sliding window time period of M sub-frames that include a downlink radio resource allocation grant on at least one downlink signaling control channel for the wireless communication device when the wireless circuitry is configured with receive diversity enabled, ii) the monitoring traffic activity determines whether any uplink radio resource allocation grants from the wireless network are pending;measuring downlink radio frequency receive signal conditions at the wireless communication device; andreconfiguring the wireless circuitry to enable receive diversity or to disable receive diversity at the wireless communication device based on:
the monitored traffic activity, andwhether the measured downlink radio frequency receive signal conditions allow reliable decoding of the at least one downlink signaling control channel using only one of the first and second radio frequency receive signal chains.