Wireless Device Neighbor Cell Analysis During DRX
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Solution Overview
Problem
Current wireless communication devices in Continuous Packet Connectivity (CPC) mode require dedicated time periods for neighbor cell analysis during discontinuous reception (DRX) phases, leading to increased power consumption and reduced battery life.
Innovation Solution
Performing neighbor cell analysis functions within the DRX phase by utilizing time periods allocated for monitoring the serving cell's downlink control channel, eliminating the need for separate dedicated time periods and allowing analysis to be completed over multiple discontinuous time periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated time periods are allocated for neighbor cell analysis during DRX phase, then neighbor cell analysis capability is improved, but power consumption increases and battery life decreases
Solution Approach 1:
The patent merges the neighbor cell analysis function with the existing downlink control channel monitoring function by performing both operations during the same DRX active periods. The receiver processes both serving cell control channels and neighbor cell signals simultaneously during allocated DRX time periods, eliminating the need for separate dedicated analysis periods and reducing overall receiver activation time.
Solution Approach 2:
The patent makes the DRX active periods serve multiple functions: monitoring the serving cell's downlink control channel and performing neighbor cell analysis. This multi-functional approach allows the receiver to accomplish both tasks during the same time window, improving efficiency and reducing power consumption while maintaining both capabilities.
2Measurement precision
If dedicated time periods are allocated for neighbor cell analysis, then neighbor cell detection precision is improved, but the time the receiver is active increases
Solution Approach 1:
The patent combines neighbor cell analysis operations with downlink control channel monitoring within the same DRX active periods. By processing both serving cell and neighbor cell signals during overlapping time windows, the patent achieves comprehensive cell analysis without extending the total receiver active duration beyond what is already required for control channel monitoring.
Solution Approach 2:
The patent maintains continuous neighbor cell analysis capability by performing measurements during every DRX active period rather than requiring separate dedicated analysis periods. This continuous approach ensures detection precision is maintained while utilizing existing receiver activation cycles efficiently.
Data Source
AI summary
A wireless communication device is operable to perform neighbor cell analysis functions while operating in a continuous packet connectivity (CPC) mode and without requiring dedicated time periods for performing the neighbor cell analysis functions as part of a discontinuous reception (DRX) phase of the CPC mode. The DRX phase includes discontinuous (e.g., periodic) time periods for monitoring a downlink control channel from a serving base station. A receiver of the wireless communication device receives a control signal over the downlink control channel during each time period of the discontinuous time periods. A processor of the wireless communication device performs a portion of a neighbor cell analysis function during each time period of a quantity of the discontinuous time periods to produce neighbor cell analysis data. The processor accumulates the neighbor cell analysis data over the quantity of time periods to complete the neighbor cell analysis function.