HS-RACH Resource Release Mechanism for Uplink Transmission Efficiency
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Solution Overview
Problem
The existing solution for uplink transmission using enhanced high-speed random access channels (HS-RACHs) lacks a method for releasing resources, leading to continuous occupation of HS-RACH resources without a mechanism for their release.
Innovation Solution
A method is introduced where user equipment (UE) and NodeB can send and receive release indications based on trigger information, such as zero buffered data size or cell handover, to explicitly release allocated HS-RACH resources, using signaling protocols like MAC control PDUs or physical-layer control signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If HS-RACH resources are allocated for uplink transmission to reduce signaling delay, then uplink transmission efficiency is improved, but resources cannot be released leading to resource waste
Solution Approach 1:
The patent changes the state of HS-RACH resources from permanently allocated to dynamically allocatable by introducing a release mechanism. When buffer status indicates no data to transmit, the resources transition from active to releasable state, optimizing resource utilization without compromising transmission efficiency
Solution Approach 2:
The patent implements feedback through buffer status reporting between UE and NodeB. The UE monitors its buffer status and provides feedback to the network, enabling the network to determine when HS-RACH resources should be released based on actual data transmission needs, thus preventing resource waste while maintaining efficiency
2Speed
If HS-RACH resources are continuously occupied to ensure immediate uplink transmission, then transmission responsiveness is improved, but resource availability for other users deteriorates
Solution Approach 1:
The patent makes HS-RACH resource allocation dynamic rather than static. Resources are allocated when needed for immediate transmission but can be released when no longer required, allowing the system to adapt between ensuring responsiveness and making resources available for other users based on real-time conditions
Solution Approach 2:
The patent changes the allocation parameter from fixed to variable by introducing release conditions based on buffer status. This allows the system to maintain high responsiveness when data is present while improving resource availability when buffers are empty, resolving the contradiction between the two requirements
Data Source
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AI summary
A method for releasing resources includes: obtaining trigger information; determining to release an allocated high-speed random access channel (HS-RACH) resource according to the obtained trigger information; and releasing the allocated HS-RACH resource at the local end. Communication equipment includes: an information obtaining unit, adapted to obtain the information related to the resource release; a resource releasing unit, adapted to determine to release the allocated HS-RACH resource according to the information obtained by the information obtaining unit, and release the allocated HS-RACH resource at the local end. A network system is also provided. The technical solution of the present invention solves the HS-RACH resource release problem.