HSDPA Multiflow HS-SCCH Resource Allocation
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Solution Overview
Problem
In UMTS networks, the existing HSDPA multiflow transmission technology faces issues where the number of HS-SCCH channels allocated by different base stations exceeds the processing capability of user equipment, leading to resource wastage and loss of downlink data transmission.
Innovation Solution
A resource allocation method where the radio network controller sends capability information of the maximum number of monitored HS-SCCH channels to the base station, ensuring that the total number of HS-SCCH channels allocated does not exceed the processing capability of the user equipment, thereby avoiding resource wastage and data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station allocates HS-SCCH channels without considering UE processing capability, then the downlink data transmission capacity is improved, but the UE processing capability is exceeded causing resource wastage and data loss
Solution Approach 1:
The terminal reports its maximum HS-SCCH monitoring capability to the network side in advance through RRC signaling. The radio network controller uses this pre-reported capability information to determine appropriate resource configuration before allocating HS-SCCH channels, ensuring that the allocated number of channels does not exceed what the terminal can process.
Solution Approach 2:
The terminal provides feedback about its processing capability (maximum number of HS-SCCH channels it can monitor) to the radio network controller. This feedback mechanism allows the network side to make informed resource allocation decisions that match the terminal's actual capabilities, preventing both underutilization and overload.
2Adaptability or versatility
If the UE monitors more HS-SCCH channels to receive HSDPA service in multiple cells, then the service coverage is improved, but the processing capability limitation causes resource wastage
Solution Approach 1:
The system changes the parameter of HS-SCCH channel count allocation based on the terminal's reported capability and the number of serving cells. The radio network controller calculates an appropriate number of HS-SCCH channels to allocate by considering both the terminal's maximum capability and the actual number of cells requiring service, ensuring optimal resource utilization without exceeding processing limits.
Data Source
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AI summary
Embodiments of the present invention disclose a resource allocation method, a radio network controller, and a base station. The method includes: generating resource instruction information according to capability information of the maximum number of a monitored HS-SCCH of a terminal configured in an HSDPA multiflow transmission mode, and sending the resource instruction information to a base station; receiving resource allocation information returned by the base station, where the resource allocation information includes the number of HS-SCCH channels allocated by the base station for the terminal in a serving cell corresponding to the base station, and the number of HS-SCCH channels allocated for the terminal in the serving cell corresponding to the base station is smaller than or equal to the maximum number of a monitored HS-SCCH of the terminal configured in the HSDPA multiflow transmission mode. By adopting the present invention, it may be ensured that a capability of the maximum number of a monitored HS-SCCH of a terminal is not exceeded when a base station allocates an HS-SCCH resource for the terminal, thereby avoiding waste of HS-SCCH resource allocation and a resulting problem of loss of downlink data transmission.