Uplink Radio Resource Assignment Using Unified PUSCH and PUCCH Processing
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Solution Overview
Problem
In next-generation mobile radio communication systems, the enlargement of channel bandwidth from 5MHz to 20MHz poses challenges in effectively assigning radio resources for uplink physical channels, particularly in achieving frequency and multiuser diversity while maintaining low transmission power density and minimizing interference and delay, especially for contention-based channels.
Innovation Solution
The method involves assigning radio resources based on data rates without code separation between contention-based and scheduled channels, utilizing time or frequency division multiplexing schemes to separate signals, and eliminating power ramping, thereby enabling effective radio resource assignment for physical channels in uplink communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate processing is performed for PUSCH and PUCCH resources, then resource allocation accuracy is improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent combines PUSCH and PUCCH resource allocation into a unified processing framework where a single set of resource allocation parameters is used for both channels. This merging approach maintains resource allocation accuracy while significantly reducing signaling overhead and processing complexity compared to separate processing methods.
Solution Approach 2:
The patent creates a universal resource allocation mechanism that serves both PUSCH and PUCCH channels simultaneously. By designing resource allocation parameters that can be applied universally to multiple channel types, the system achieves accurate resource allocation without requiring channel-specific processing, thereby reducing overall system complexity.
2Reliability
If resource allocation is optimized for individual channels, then channel performance is improved, but overall system resource utilization deteriorates
Solution Approach 1:
The patent merges resource allocation decisions for PUSCH and PUCCH into a unified process, ensuring that resource assignments for both channels are coordinated to avoid conflicts and optimize overall system utilization. This combined approach maintains individual channel performance while improving global resource efficiency.
Solution Approach 2:
The patent introduces a new dimension of resource allocation by considering temporal and spectral resources across multiple channels simultaneously. This multi-dimensional resource management approach allows the system to optimize channel performance while maintaining high overall resource utilization through coordinated allocation in time, frequency, and code domains.
3Measurement precision
If detailed resource allocation signaling is provided for each channel, then resource allocation precision is improved, but signaling overhead increases
Solution Approach 1:
The patent combines resource allocation signaling for PUSCH and PUCCH into a single signaling message structure. By merging the allocation information for both channels into one unified signal, the system maintains precise resource allocation while significantly reducing the total amount of signaling overhead compared to providing separate detailed signaling for each channel.
Solution Approach 2:
The patent designs a universal resource allocation signaling format that can convey allocation information for multiple channel types simultaneously. This multi-functional signaling approach achieves precise resource allocation for both PUSCH and PUCCH using a single signaling message, thereby minimizing signaling overhead while maintaining allocation precision.
Data Source
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AI summary
A radio resource assignment method for a physical channel in an uplink directed from a mobile apparatus to a base station in a radio communication system, includes: assigning a contention-based channel and a scheduled channel according to one of a time division scheme, a frequency division scheme, and a hybrid scheme of the time division scheme and the frequency division scheme. In addition, radio resources are properly assigned to each of the contention-based channel, a common control channel of the scheduled channel, and a shared data channel of the scheduled channel.