Shared E-DCH Bearer for RNC NodeB Transmission
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Solution Overview
Problem
The existing mobile communication systems waste resources and slow down information transmission between a Radio Network Controller (RNC) and a NodeB due to the use of dedicated Enhanced Dedicated Channels (E-DCH) for small and intermittent data, which is not efficiently managed like the air interface between User Equipment (UE) and NodeB.
Innovation Solution
Implementing a method to set up and use a shared E-DCH transmission channel between the RNC and NodeB, allowing for the exchange of information through a shared E-DCH transmission bearer, including parameters like signature lists and physical-layer channel parameters, to optimize resource usage and speed up data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a dedicated E-DCH channel is used between the RNC and the NodeB to increase transmission speed, then the information exchange speed between RNC and NodeB is improved, but channel resources are wasted drastically due to small and intermittent UE data quantity
Solution Approach 1:
The patent merges multiple UE data streams into a shared E-DCH transmission channel between RNC and NodeB. Instead of allocating separate dedicated E-DCH channels for each UE or for RNC-NodeB communication, the invention combines data from multiple UEs and control plane data into a single shared channel, thereby improving resource utilization while maintaining transmission speed.
Solution Approach 2:
The shared E-DCH transmission channel serves multiple functions: it carries user plane data from multiple different UEs, transports control plane information between RNC and NodeB, and dynamically adapts to varying data traffic patterns. This multi-functional channel eliminates the need for separate dedicated channels for different purposes.
2Reliability
If a dedicated E-DCH channel is allocated between RNC and NodeB, then transmission reliability is improved, but device complexity increases due to separate channel management
Solution Approach 1:
The patent combines control plane data and user plane data transmission into a single shared E-DCH channel between RNC and NodeB. This merging reduces the number of separate channel management procedures, lowering system complexity while maintaining reliable transmission through proper data identification and handling mechanisms.
3Adaptability or versatility
If multiple dedicated E-DCH channels are allocated for different UEs, then each UE gets dedicated resources, but channel resource waste increases due to intermittent data traffic patterns
Solution Approach 1:
The patent merges data from multiple UEs into a single shared E-DCH channel, allowing dynamic resource sharing. When one UE has no data to transmit, its resources are automatically available for other UEs, eliminating the waste associated with dedicated channels that remain idle during intermittent traffic periods.
Solution Approach 2:
The shared E-DCH channel dynamically adapts its resource allocation based on real-time data traffic patterns from different UEs. The channel can flexibly adjust which UE's data is transmitted in each time slot, providing dedicated-like service quality without the rigidity and waste of static dedicated channel allocation.
Data Source
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Figure 3
AI summary
A method for transmitting information includes: sending, by a RNC, a message to a NodeB, where the message comprises parameters for setting up or reconfiguring a shared Enhanced Dedicated Channel, E-DCH, transmission channel; exchanging, by the RNC, information with the NodeB through an established shared E-DCH transmission bearer after the shared E-DCH transmission channel is set up or reconfigured by the NodeB according to the message; where exchanging, by the RNC, information with the NodeB through the established shared E-DCH transmission bearer, includes: receiving, by the RNC, a Frame Protocol, FP, frame carrying a User Equipment, UE, ID, or E-DCH data carrying a UE ID from the NodeB. With the present invention, the NodeB and the RNC can share the E-DCH transmission bearer, thus saving the channel resources between the NodeB and the RNC while speeding up the information transmission between the RNC and the NodeB.