Indoor Personal Relay Dynamic BS Association
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Solution Overview
Problem
In developing countries like India, deploying femto/pico/micro cells for capacity expansion in wireless communication networks is not feasible due to low wired connection density and high deployment costs, posing challenges for coverage extension and capacity enhancement.
Innovation Solution
A method where a relay associates with a Base Station (BS) by searching for the best BS, attaching to it, and sending a list of Closed Subscriber Group (CSG) UEs, with the BS checking for attached CSG UEs and completing association if found, and attempting to associate with the next best BS if not successful, along with powering down after a specified number of failed attempts. The relay also powers down if it detects excessive interference or a high mobility level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay associates with multiple BSs to improve network capacity and coverage, then network performance is improved, but association complexity and power consumption increase
Solution Approach 1:
The relay dynamically adjusts its association state with BSs based on real-time conditions. It can associate with multiple BSs when needed for capacity expansion and switch to idle mode when no UEs are present, optimizing the balance between network performance and operational complexity
Solution Approach 2:
The system changes operational parameters by transitioning relays between active association states and idle mode based on the presence of CSG UEs. This parameter change allows the network to scale complexity up when needed and down when not required
2Reliability
If relay remains in active mode continuously to maintain network coverage, then coverage is maintained, but energy consumption increases
Solution Approach 1:
The relay operates periodically rather than continuously - transitioning between active association mode and idle mode based on the presence of CSG UEs. This periodic operation maintains coverage when needed while saving energy during idle periods
Solution Approach 2:
The relay autonomously monitors its own operational state and the presence of CSG UEs, making decisions about when to activate or enter idle mode without external control, thereby optimizing energy consumption while maintaining coverage
3Use of energy by moving object
If relay enters idle mode to save energy when no CSG UEs are present, then power consumption is reduced, but association establishment time increases
Solution Approach 1:
The relay maintains association parameters and configuration information in advance during idle mode, so that when CSG UEs appear, the relay can quickly transition to active mode and establish connections without full re-configuration, reducing the time penalty of idle mode
Data Source
AI summary
The embodiments herein disclose an indoor personal relay which has a wireless interface with the BS, which is effective in both cost and technology terms. The indoor personal relay, as disclosed herein is an estimate and forward relay. The relay 101 as disclosed herein does not perform any additional channel decoding/encoding on the data that it receives from the UE or BS. Embodiments disclosed herein enable the relevant UEs to have a high SINR link with the relay. This, in turn, translates to a better effective link quality between the UE and BS and higher indoor rates, which otherwise may have been not as good as a consequence of poor direct link between the UE and the BS. This relay is effectively transparent to the UE. The deployment of relays also implies minimal impact on UE IOT.