Bearer Management Signalling via Union Resource Request
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Solution Overview
Problem
The existing bearer management in wireless communication networks leads to delayed service access and underutilization of backhaul bandwidth due to the excessive exchange of messages between user equipment (UE) and relay nodes (RN) for creating or modifying bearers, which wastes resources and causes delays.
Innovation Solution
A method is introduced to optimize bearer management by transporting 'Union of Resource Request' (UR Request) signalling messages from Evolved Packet Edge (EPE) entities to managing entities via Donor-eNB (DeNB) and receiving 'Independent Admission Response' (IA Response) messages, allowing for the transmission of bearer requests and responses within single NAS messages, with relay node identities tagged for processing, thereby reducing unnecessary message exchanges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate bearer management procedures are used for UE and RN, then individual bearer control is achieved, but message exchange increases and service access is delayed
Solution Approach 1:
The patent combines separate UE bearer management and RN bearer management procedures into a unified bearer management process. The network node processes both UE bearer requests and RN bearer requests together, allowing message aggregation where a single message can trigger bearer management for both UE and RN simultaneously, thereby reducing message exchange overhead and service access delay while maintaining individual control capabilities.
2Ease of operation
If separate bearer management procedures are used for UE and RN, then individual bearer control is achieved, but backhaul bandwidth is wasted
Solution Approach 1:
The patent merges separate bearer management signalling flows for UE and RN into a consolidated process at the network node. By processing both bearer requests together and enabling message aggregation, the system reduces redundant message exchanges over the backhaul interface, thereby optimizing bandwidth utilization while preserving the ability to individually control bearers for each UE and RN.
3Ease of operation
If multiple message exchanges occur for bearer creation, then detailed bearer control is possible, but resource efficiency decreases
Solution Approach 1:
The patent combines multiple separate message exchanges for UE bearer creation and RN bearer creation into a unified procedure. The network node receives and processes both bearer requests together, enabling coordinated bearer establishment that maintains precise control over individual bearers while significantly improving resource efficiency by eliminating redundant signalling and reducing the total number of message exchanges required.
Data Source
AI summary
A method and system of bearer management signalling in a communication network comprising of transporting bearer resource request message of both the UE and RN via DeNB to managing entity of UE within EPC, as a signalling message over uplink channel referred to as “Union of Resource Request” (UR Request)' message. The bearer resource response message from one of the managing entity of UE or managing entities of UE and RN within EPC are transported as a signalling message to Evolved Packet Edge (EPE) via DeNB over the downlink channel referred to as “Independent Admission Response” (IA Response). This manages bearer setup signalling as a single loop, by transportation of “UR Request” signalling message over uplink and receiving one “IA Response” signalling message over downlink channels. EPE is a conglomeration of network nodes comprising of UEs, RNs and all other network nodes that communicate over EPC via DeNB.