Relay Network Association Parameter Coordination

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Solution Overview

Problem

Current radio communication technologies lack a method for association in multi-hop relay networks that supports Association Level 1 and Association Level 2, especially when the associated neighbor station is a Relay Station (RS), as existing methods cannot satisfy the requirements for parameter negotiation and resource allocation.

Innovation Solution

The proposed solution involves a method and system where a serving Base Station (BS) of an associated neighbor station receives ranging requests and reports, and coordinates with the Mobile Station (MS) and the RS to allocate association parameters, including CDMA codes and transmission opportunities, enabling Association Level 1 and Level 2 operations by performing parameter negotiation and reporting processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the associated neighbor station is a Relay Station (RS) and performs independent scheduling of association parameters, then the RS can allocate resources autonomously, but the serving BS of the associated RS cannot acquire the association parameters of the associated RS

Engineering Contradiction:

Improveautonomous resource allocation by RSVSAvoidassociation parameters not acquired by serving BS

Core Design Contradiction:

Extent of automationVSLoss of information

Solution Approach 1:

The patent introduces a feedback mechanism where the RS sends association parameter information to the serving BS through a dedicated message transmission process. The RS includes association parameters (such as CDMA codes, transmission opportunities, and timing information) in messages sent to the serving BS, enabling the serving BS to acquire and store this information for coordinating handovers and managing network resources effectively.

Inventive Principle:

Principle #23Feedback

2Adaptability or versatility

If the prior art association parameter negotiation via backbone network is used, then existing network architecture is maintained, but it cannot satisfy the requirements of Association Level 1 and Association Level 2 in relay networks

Engineering Contradiction:

Improvesupport for Association Level 1 and Level 2VSAvoidassociation parameter negotiation process

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the association parameter negotiation process into multiple levels (Association Level 0, Level 1, and Level 2) with distinct functions. Level 1 involves pre-allocation of CDMA codes and transmission opportunities by neighbor BSs, while Level 2 involves coordination of ranging regions and transmission timing. This segmentation enables the system to support advanced association features while maintaining manageable complexity through structured procedures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces the serving BS as an intermediary that coordinates between the MS and associated RSs. The serving BS receives association parameter information from RSs, processes it according to network policies, and uses it to manage handovers and resource allocation. This intermediary role simplifies the overall negotiation process by centralizing coordination functions.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If Association Level 1 or Level 2 is performed with traditional BSs, then ranging parameters can be allocated, but there is no association method when the associated neighbor station is an RS

Engineering Contradiction:

Improveassociation method for RS as neighbor stationVSAvoidhandover process reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent makes the association parameter negotiation process universal by enabling it to work with both traditional BSs and Relay Stations as associated neighbor stations. The serving BS uses the same coordination mechanism to manage associations with RSs as it does with conventional BSs, ensuring consistent handover behavior and network management across different network topologies.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8670408B2Method and system for association in relay network

Publication Date: 2014.03.11 HUAWEI TECH CO LTD

AI summary

A method and system for association in a relay network are disclosed; a neighbor Base Station (BS) receives a ranging request from an associated neighbor station and the ranging request is received by the associated neighbor station from an MS; the neighbor BS sends a ranging response to the MS in response to the ranging request; the associated neighbor station is an RS. Association Level 1 is implemented. Another method and system for association in a relay system are disclosed; a neighbor BS receives a ranging report from an associated neighbor station after the associated neighbor station receives a CDMA code from an MS; the neighbor BS sends the ranging report to the MS or to a serving BS by which the ranging report is sent to the MS; the associated neighbor station is an RS. Association Level 2 is implemented.