User Equipment Group Coordination Via Cooperative Sidelink Communication
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Solution Overview
Problem
The increased density of user equipment and limited coverage range due to high spectrum frequencies in wireless communication networks lead to inefficiencies in data transmission and reception, particularly in point-to-point connections without cooperation among nearby devices.
Innovation Solution
Implementing cooperative communication systems where user equipment forms groups, with active devices communicating through base stations and passive devices communicating indirectly, enabling data sharing and coordination via device-to-device links to enhance coverage and capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If point-to-point connections are used between user equipment and base stations, then device complexity is reduced, but communication reliability deteriorates when devices are disconnected from the network
Solution Approach 1:
The patent introduces intermediate user equipment devices that act as mediators to relay data between disconnected target devices and the network. When a target device is disconnected from base stations, other user equipment in the group receive data from base stations and forward it to the target device through device-to-device links, maintaining communication reliability without increasing the complexity of the overall connection structure.
2Speed
If high spectrum frequencies are used for wireless communication, then data transmission speed is improved, but coverage range deteriorates due to signal loss
Solution Approach 1:
The patent extends the coverage dimension by introducing multi-hop device-to-device communication paths. Instead of relying solely on direct base station coverage, data can be transmitted through intermediate user equipment devices that form a cooperative network, effectively extending the coverage range while maintaining high-frequency data transmission speeds.
3Productivity
If user equipment density increases, then network capacity is improved, but coordination complexity among devices deteriorates
Solution Approach 1:
The patent segments the large-scale dense device network into smaller cooperative groups. Each group manages its own internal coordination independently, with designated active devices handling specific coordination tasks. This segmentation reduces the overall coordination complexity while maintaining high network capacity by enabling parallel operations across multiple groups.
Solution Approach 2:
The patent creates universal protocols and mechanisms that enable user equipment to perform multiple functions within the cooperative group, such as data reception, relaying, and coordination. This multi-functionality reduces the need for specialized complex coordination mechanisms for each device type or scenario, simplifying overall system management while supporting high device density.
Data Source
AI summary
User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).