Mobile Device Intermediary for Base Station Resource Coordination
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in managing resource blocks between base stations, leading to interference and excessive signaling, especially when mobile devices are at the cell edge, and there is a need to optimize resource utilization to reduce transport resource usage.
Innovation Solution
Mobile devices monitor synchronization channel strengths and transmit 'echo' transmissions to neighboring base stations, allowing for the reuse of resource blocks based on signal strength, and can act as intermediaries to facilitate data communication between base stations or devices, reducing the reliance on transport resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base stations communicate frequently via X2 interface to indicate in-use resource blocks, then resource coordination between base stations is improved, but transport resources are consumed excessively
Solution Approach 1:
The patent introduces mobile devices as intermediary nodes that relay resource block usage information between base stations. Instead of direct base station-to-base station communication, the mobile device receives resource block allocation information from its serving base station and forwards relevant information to neighboring base stations, thereby reducing the signaling load on the X2 interface and conserving transport resources.
Solution Approach 2:
The patent extracts the resource coordination function from the base station communication path and relocates it to mobile devices. By taking out the signaling function from the core network infrastructure and placing it at the edge (mobile devices), the system reduces the burden on transport resources while maintaining effective resource coordination.
2Reliability
If base stations use dedicated transport resources for signaling, then resource block coordination is achieved, but available transport resources for data transmission are reduced
Solution Approach 1:
The patent makes mobile devices serve multiple functions: they act as both end-users and as signaling relays for resource coordination. By utilizing the uplink channel of mobile devices for dual purposes (data transmission and resource information relay), the system eliminates the need for dedicated transport resources for signaling, thereby preserving data transmission capacity.
Solution Approach 2:
The patent enables the system to self-organize resource coordination through mobile devices without requiring dedicated signaling infrastructure. Mobile devices autonomously receive and forward resource block information, allowing the network to self-coordinate resources using existing uplink channels rather than consuming additional transport resources.
3Area of stationary object
If mobile devices at cell edge receive signals from multiple base stations, then coverage is extended, but interference increases due to same resource block usage
Solution Approach 1:
The patent implements a feedback mechanism where mobile devices monitor resource block usage from their serving base station and provide this information to neighboring base stations. Neighboring base stations use this feedback to adjust their resource block allocations, avoiding conflicts and reducing interference in overlapping coverage areas while maintaining extended coverage.
Data Source
AI summary
Resource blocks associated with communication devices can be managed. A mobile device(s) at cell edge identifies its in-use resource blocks (RBs) to a neighbor base station, or in-use RBs of a neighbor base station to the serving base station. In the former instance, the neighbor base station sorts RBs in ascending order based on signal strengths respectively associated with the RBs and mobile devices; in the latter instance, the serving base station ranks RBs in ascending order based on signal strengths respectively associated with the RBs and neighbor base stations. RBs having weakest signal strength are reused first for mobile devices at cell edge. Base station establishes a direct wireless radio path with another base station facilitated by employing a sequence of subframes where all subframes but a specified subframe are blanked, and data is transmitted between base stations during the specified subframe.