Uplink Shared Channel Resource Allocation Minimizing Interference
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Solution Overview
Problem
Existing methods for allocating uplink shared channel resources in communication systems, such as TD-SCDMA and LTE, can lead to reduced overall system performance due to excessive interference, as they primarily focus on channel quality indication without considering the overall power resources.
Innovation Solution
A method that acquires the volume of data-to-be-transmitted and uplink channel quality indication, determines resource profiles, and combines transmission power with these profiles to ensure optimal resource allocation, minimizing interference and improving system performance by selecting resource profiles that meet specific power requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource allocation is based on channel quality indication using TB_size table lookup, then resource allocation can satisfy user data transmission volume requirements, but transmission power is not optimized leading to excessive interference and reduced system performance
Solution Approach 1:
The patent changes the allocation parameters from only channel quality indication (MCS) and data volume to include transmission power as a third dimension. The base station determines multiple candidate resource profiles based on channel quality and data volume, then selects the optimal profile by evaluating transmission power requirements, thereby optimizing power usage and reducing interference while maintaining reliable resource allocation.
2Adaptability or versatility
If multiple resource profiles are selected based on data volume requirements, then flexibility in resource allocation increases, but complexity of determining the final resource profile increases
Solution Approach 1:
The patent applies preliminary action by pre-determining multiple candidate resource profiles based on channel quality indication and data volume requirements before final selection. This preliminary filtering organizes the search space and structures the candidate profiles, making the subsequent power-based selection more efficient and manageable, thus reducing the perceived complexity while maintaining flexibility.
Solution Approach 2:
The patent introduces dynamic selection among multiple resource profiles by evaluating transmission power requirements for each candidate. Instead of using a static lookup table approach, the system dynamically selects the most appropriate resource profile based on current power conditions and interference levels, enabling adaptive optimization without excessive complexity through structured candidate evaluation.
Data Source
AI summary
A method that allocates uplink shared channel resources includes acquiring the volume of data-to-be-transmitted and an uplink channel quality indication. The method further includes, based on the volume of data-to-be-transmitted acquired, determining a set of resource profiles of the uplink channel quality indication and a resource number. The method further includes judging whether or not the uplink channel quality indication comprised within the set of resource profiles is identical to the uplink channel quality indication acquired. If they are identical, using a corresponding set of resource profiles as a final resource profile; and if they are different, combining an uplink transmission power with the corresponding set of resource profile to determine the final resource profile. Under the premise of ensuring QoS, the method allows for minimization of transmission power of each terminal, thus reducing inter-system interference, allowing system performance to be further improved.