Adaptive Transceiver Allocation for Noise-Limited Uplink Sensitivity
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Solution Overview
Problem
Existing GSM base transceiver stations face challenges in improving receiver sensitivity for noise-limited uplink signals without adding extra hardware, as the uplink is typically the limiting link and is affected by thermal noise, spurious emissions, and non-linearity from strong interference sources.
Innovation Solution
Adaptive allocation of available transceiver units for parallel processing of noise-limited signals across multiple receiver units, followed by signal combination using methods like Maximum Ratio Combining or Chase soft combining to enhance the signal-to-noise ratio, without requiring additional antennas or hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-way diversity is used to improve uplink signal, then diversity gain and power gain are achieved, but the system cannot improve noise limited receiver sensitivity without adding extra antennas and hardware
Solution Approach 1:
The patent makes existing receiver units perform multiple functions by dynamically allocating them to process multiple signals simultaneously. Receiver units that would normally be idle during certain timeslots are utilized to process noise-limited signals, enabling the system to achieve improved receiver sensitivity without adding new hardware components.
Solution Approach 2:
The patent implements dynamic resource allocation where the system adaptively assigns signals to receiver units based on real-time conditions. The network controller identifies noise-limited signals and dynamically routes them to appropriate receiver units for parallel processing, allowing the system to optimize performance without fixed hardware additions.
2Object-affected harmful factors
If parallel processing on multiple receiver units is implemented, then signal-to-noise ratio is improved, but system complexity increases
Solution Approach 1:
The patent introduces a network controller as an intermediary that manages the complex task of signal routing and coordination. This central controller handles the identification of noise-limited signals, the selection of appropriate receiver units, and the coordination of parallel processing, thereby managing system complexity without requiring distributed intelligence across all receiver units.
Solution Approach 2:
The patent creates multiple processed versions of the same signal through parallel processing on different receiver units. Each receiver unit processes a copy of the noise-limited signal independently, and the results are subsequently combined to achieve improved signal-to-noise ratio through diversity combining techniques.
Data Source
AI summary
In a method for enabling improved quality for noise limited uplink signals in a radio base station in a telecommunication system, said radio base station comprising a plurality of transceiver units, each comprising at least one receiver unit, adaptively allocating (S10) available transceiver units to enable parallel processing of an identified noise limited signal on at least two separate receiver units in the radio base station. And, combining (S20) the parallel processed noise limited calls to provide a received signal with improved signal to noise ratio.