Inter-Cluster Radio Resource Coordination for Border Interference
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Solution Overview
Problem
Substantial inter-cluster interferences arise in mobile telecommunication networks based on cloud architectures, particularly at cluster boundaries, leading to reduced quality of service and user experience.
Innovation Solution
Implementing interferences control/suppression schemes by exchanging and sharing radio resources among Central Units (CUs) managing neighboring clusters, allowing Remote Units (RUs) at cluster borders to be managed by multiple CUs, thereby improving service provision to user equipment near borders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If RUs are managed by a single CU in traditional cloud architecture, then device complexity is reduced and management is simplified, but inter-cluster interferences occur at cluster boundaries reducing quality of service
Solution Approach 1:
The patent applies multi-functionality by enabling Remote Units (RUs) to be managed by multiple Central Units (CUs) simultaneously. Border RUs can receive coordination information from neighboring CUs, allowing them to function both as part of their home cluster and cooperate with adjacent clusters, thereby reducing inter-cluster interference while maintaining manageable complexity through standardized coordination protocols
2Reliability
If RUs at cluster boundaries are managed by multiple CUs, then inter-cluster interferences are reduced and quality of service is improved, but device complexity and coordination overhead increase
Solution Approach 1:
The patent introduces an intermediary coordination mechanism where CUs exchange coordination information about their respective RUs through standardized interfaces. This intermediary layer manages the complexity of multi-CU coordination by providing a structured protocol for information exchange, allowing border RUs to be efficiently managed by multiple CUs without excessive coordination overhead
Data Source
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Figure 3A
AI summary
A mobile telecommunication network (100) comprising a plurality of network elements (CUa, CUb, RUa1-7, RUb1-7; mCU, sCU, SRU1-5, mRU1; CUa', CUb', RUa'1-2, RUb'1), the network elements being divided in at least two clusters (A, B; S, M; A', B') is proposed. Each cluster comprises: a plurality of remote units (RUa1-6, RUb1-6; SRU1-5, mRU1; RUa'1-3, RUb'1-2) corresponding to network elements, each remote unit being arranged for exchanging radiofrequency signals with user equipment (205a, 205b) located within at least one respective served area (105, 105na, 105nb; 105s, 105m; 105L, 105H, 105Hna, 105Hnb, 105Lna, 105Lnb); a central unit (CUa, CUb; mCU, sCU; CUa', CUb') corresponding to a network element arranged for managing the exchange of radiofrequency signals with the user equipment located within the served areas of each remote unit of the cluster, and a plurality of connections (110a1-6, 110b1-6; 110s1-5, 110m1; 110a'1-2, 110b'1), each for operatively connecting a remote unit with the central unit of the same cluster. At least one remote unit (RUa4; sRU4; RUa'1) of a first cluster (A; S; A') is further connected to a central unit (CUb; mCU; CUb') of the second cluster (B; M; B'), at least one respective served area (105na; 105s; 105Hna, 105Lna) of the at least one remote unit of the first cluster being adjacent to at least one further respective served area (105nb; 105m; 105Hnb, 105Lnb) of a further remote unit (RUb1; mRU1; RUb'1) of the second cluster, thereby allowing both the central unit of the first cluster and the central unit of the second cluster to manage communication with user equipment (205a, 205b) through the at least one remote unit.