Antenna Transmission Weighting for Multi-Base Station Networks
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Solution Overview
Problem
In wireless telecommunications networks with uplink transmit diversity, the conflicting requirements from different base stations can lead to inefficient data transfer due to inappropriate antenna transmission weightings, causing signal degradation and loss in network efficiency.
Innovation Solution
A method for setting antenna transmission weightings in user equipment that balances the requests from multiple base stations by calculating a compromise weighting, minimizing the difference between preferred and requested weightings, which can be achieved through averaging, mode selection, or importance-based assignment, to optimize communication across the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink transmit diversity is implemented with multiple antennas, then signal robustness is improved, but conflicting requirements from different base stations cause inappropriate antenna transmission weightings leading to decreased network efficiency
Solution Approach 1:
The patent introduces a compromise antenna transmission weighting as an intermediary solution that mediates between the conflicting requirements of multiple base stations. Instead of satisfying each base station's preferred weighting independently (which is impossible with a single transmission), the system calculates a compromise weighting that minimizes the difference between individual base station preferences and the actual transmission weighting, thereby achieving a balanced solution that maintains network efficiency while preserving signal robustness through diversity
Solution Approach 2:
The patent changes the parameter of antenna transmission weighting from fixed base station-specific values to a dynamic compromise value that is calculated based on the preferences of multiple base stations. This parameter change allows the system to adapt the transmission weighting to balance the requirements of all active base stations, resolving the contradiction between signal robustness and network efficiency
2Reliability
If antenna transmission weightings are optimized for one base station, then communication quality with that base station is improved, but other base stations in the active set experience signal degradation
Solution Approach 1:
The patent applies local quality by calculating a compromise antenna transmission weighting that is specifically tailored to balance the requirements of all base stations in the active set. Rather than using a single base station's preferred weighting, the system computes a weighting that is locally optimized for the multi-base station environment, minimizing the harmful signal degradation effect on any single base station while maintaining acceptable communication quality across all active base stations
Data Source
AI summary
User equipment, a computer program product and method of setting antenna transmission weightings of user equipment in a wireless telecommunication network. The user equipment (vE1) is operable to transmit on at least two antenna and communicate with at least two base stations (NB1, NB2) in its active set. The method employed by the user equipment and computer program product comprises the steps of: receiving an indication of preferred antenna transmission weightings (W1,W2) from at least two base stations in said active set associated with said user equipment, calculating from said received indications of preferred antenna transmission weightings, an indication of compromise antenna transmission weightings which minimize the difference between said indication of compromise antenna transmission weightings and said indication of preferred antenna transmission weightings received from the base stations in said active set and setting said antenna transmission weightings in accordance with said calculated indication of compromise antenna transmission weightings.