Uplink Synchronization Control for HS-SICH in TD-SCDMA
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Solution Overview
Problem
The current 3GPP TD-SCDMA standard lacks integration of uplink synchronization parameter configuration and control for the High Speed Shared Information Channel (HS-SICH), leading to inefficiencies in Node B and User Equipment (UE) synchronization processes.
Innovation Solution
A method and system for uplink synchronization control, where a radio network controller assigns and configures uplink synchronization parameters for both Node B and UE, ensuring synchronization parameters are set the same for the high speed shared information channel, enabling synchronized control commands to be sent and received for precise uplink synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink synchronization parameter configuration and control for HS-SICH are not integrated in the current 3GPP TD-SCDMA standard, then the system maintains simplicity in protocol design, but Node B and UE cannot perform effective synchronization control for the HS-SICH physical channel
Solution Approach 1:
The patent merges the uplink synchronization parameter configuration for HS-SICH with the existing uplink synchronization parameter configuration for uplink dedicated physical channels. By integrating these previously separate configuration processes into a unified mechanism, the patent enables effective synchronization control for HS-SICH while avoiding the need for entirely new complex configuration procedures.
Solution Approach 2:
The patent applies universal uplink synchronization parameter configuration mechanisms to serve multiple purposes: both the traditional uplink dedicated physical channels and the new HS-SICH physical channel. This multi-functional approach allows the same configuration infrastructure to support different channel types, improving reliability without proportionally increasing complexity.
2Adaptability or versatility
If separate configuration processes are maintained for different physical channels, then each channel can be optimized independently, but Node B and UE lack coordinated synchronization control capability
Solution Approach 1:
The patent establishes a feedback mechanism where synchronization parameter configurations for different physical channels are coordinated through shared configuration information. The configuration process for HS-SICH references and coordinates with the configuration of uplink dedicated physical channels, ensuring that synchronization information is consistently applied across channels while maintaining the ability to optimize each channel's specific parameters.
Data Source
AI summary
The present invention discloses an uplink synchronization control method and system for the high speed shared information channel. The method includes: S102, a radio network controller assigns resources associated with the high speed downlink packet access for a user equipment and sends the information associated with the resources to Node B and the user equipment; S104, Node B configures uplink synchronization parameters for the high speed shared information channel for the user equipment using the uplink synchronization parameters which are assigned by the radio network controller for the radio link for the high speed shared information channel; the user equipment configures the uplink synchronization parameters for the high speed shared information channel of the user equipment using the uplink synchronization parameters for the uplink associated dedicated physical channel assigned by the radio network controller; S106, Node B and the user equipment send and/or receive a synchronization control commands and control the uplink synchronization process for the high speed shared information channel according to the uplink synchronization parameters for the high speed shared information channel assigned for the user equipment respectively.