HSDPA HS-SCCH Less Mode Control via Physical Layer Signaling
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Solution Overview
Problem
The existing high-level signaling configuration method for controlling the HS-SCCH less operation mode in HSDPA systems is slow and resource-intensive, requiring significant processing and air interface resources due to complex determination and signaling interactions between the RNC and UE.
Innovation Solution
Implementing physical layer signaling to activate or deactivate the HS-SCCH less operation mode directly, allowing for faster mode switching by transmitting preset or generated HS-SCCH orders with specific bit values to instruct the UE to activate or deactivate the mode, thereby reducing processing and air interface resource overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-level signaling configuration method is used to control HS-SCCH less operation mode, then the mode switching can be achieved, but the configuration speed is slow and processing resource overhead is large
Solution Approach 1:
The patent replaces the high-level signaling configuration method (Layer 3 signaling involving RNC and complex signaling interactions) with a physical layer signaling method. The NodeB directly transmits physical layer signaling to the UE to activate or deactivate HS-SCCH less operation mode, eliminating the need for complex RNC signaling and UE processing, thereby achieving fast mode switching with reduced processing resource overhead
Solution Approach 2:
The patent extracts the mode control function from the high-level signaling layer and implements it at the physical layer. By removing the complex RNC signaling interaction and UE determination processes, the solution isolates the essential control action (activating/deactivating HS-SCCH less mode) and executes it directly through physical layer signaling, thereby reducing system complexity and improving speed
2Productivity
If high-level signaling configuration method is used, then mode control is achieved, but air interface resource overhead is generated during signaling interaction
Solution Approach 1:
The patent substitutes the high-level signaling mechanism with physical layer signaling that directly controls the HS-SCCH less operation mode. This replacement eliminates the need for extensive air interface signaling interactions between RNC and UE, thereby reducing air interface resource overhead while maintaining mode control capability
Solution Approach 2:
The patent extracts the mode control function from the resource-intensive high-level signaling layer and implements it efficiently at the physical layer, removing the unnecessary air interface signaling overhead associated with RNC configuration messages and UE processing
Data Source
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AI summary
A method for controlling a working mode of a high speed downlink packet access (HSDPA) system includes steps as follows. When an activation state of a high speed shared control channel (HS-SCCH) less operation mode needs to be changed, a base station transmits a physical layer signaling for activating or deactivating the HS-SCCH less operation mode to a user equipment (UE), so as to instruct the UE to activate or deactivate the HS-SCCH less operation mode. The UE activates or deactivates the HS-SCCH less operation mode according to the physical layer signaling for activating or deactivating the HS-SCCH less operation mode from the base station. In the present invention, a base station, a UE, and an HSDPA system are described. By applying the present invention, the working mode of the HSDPA system is quickly controlled, thereby saving the processing resources of the UE and air interface resources of the system.