NodeB Radio Self-Backhaul Using Idle Downlink Resources
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Solution Overview
Problem
Conventional cable backhaul in radio communication networks is associated with high engineering costs, long construction periods, and high operating expenditures, hindering network deployment and development.
Innovation Solution
A radio self-backhaul method and system that utilizes the radio resources of a NodeB to implement backhaul without occupying resources of other NodeBs, using a radio self-backhaul device to receive and process user uplink data and send it to the core network via cable transmission, thereby saving radio transmission resources and mitigating throughput impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cable backhaul is used for NodeB, then reliable transmission between NodeB and RNC is achieved, but engineering costs are high and construction period is long
Solution Approach 1:
The NodeB uses its own downlink radio resources to transmit uplink backhaul data, making the system self-sufficient without requiring external cable infrastructure. The NodeB serves its own backhaul needs by utilizing idle radio resources, eliminating dependency on external cable laying operations.
Solution Approach 2:
The downlink radio resources of the NodeB are made multi-functional by serving both normal downlink communication purposes and backhaul transmission purposes. This allows the same radio resources to fulfill multiple functions, reducing the need for dedicated backhaul infrastructure.
2Reliability
If conventional cable backhaul is deployed, then stable backhaul connection is established, but operating expenditure increases
Solution Approach 1:
The NodeB independently manages its backhaul transmission using its own radio resources, eliminating the need for separate cable infrastructure maintenance and associated operating costs. The system becomes self-servicing, reducing external dependencies and operational expenditures.
3Quantity of substance
If radio resources are used for backhaul, then cable transmission resources are saved, but radio network throughput may be impacted
Solution Approach 1:
Only the idle or underutilized portion of the downlink radio resources is allocated to backhaul transmission, rather than using all radio resources. This partial action ensures that sufficient resources remain for normal downlink communication, minimizing impact on throughput while still achieving backhaul functionality.
Solution Approach 2:
The allocation of radio resources between backhaul and normal communication is dynamic rather than static. The system can adjust the portion of resources dedicated to backhaul based on current network conditions, traffic demands, and service requirements, optimizing both backhaul efficiency and throughput performance.
Data Source
AI summary
Embodiments of the present invention relate to a radio self-backhaul method, device, and system in an evolved network. With the radio self-backhaul method, device, and system provided in the embodiments of the present invention, the NodeB sends the uplink data to the core network by using the cable transmission link without occupying the radio resources of other NodeBs. This implements the radio self-backhaul for the NodeB, saves the radio transmission resources of the NodeB, and mitigates the impact on the radio network throughput.