Network-Triggered UE Aggregation for Cell-Edge Bandwidth
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Solution Overview
Problem
Existing wireless communication systems struggle to support high data rates and large transmission bandwidths required by services like augmented reality and video with large numbers of pixels, especially for low-capability user equipment (UE) at cell edges, due to limited transmission power and the difficulty in aggregating multiple UEs for transmission and/or reception.
Innovation Solution
Network-triggered aggregation techniques are employed to aggregate multiple UEs, with one UE acting as the primary anchor and others as secondary, enabling coordinated transmission and reception through network-controlled configuration and data forwarding mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple UEs are aggregated to provide high data rates and large transmission bandwidths, then the data transmission capability is improved, but the device complexity and coordination overhead increase
Solution Approach 1:
The network device serves as an intermediary that coordinates the aggregation operations between multiple UEs. The network device receives configuration information from the core network device, determines the first and second UEs for aggregation, and manages the data forwarding between them, thereby reducing the coordination complexity that would otherwise exist between the UEs themselves.
Solution Approach 2:
The network device receives and processes configuration information about candidate UEs before establishing the aggregation relationship. This preliminary action includes receiving the list of communication devices from the core network device, determining which UEs to aggregate, and preparing the configuration information before the actual aggregation operation begins, which streamlines the subsequent coordination process.
2Adaptability or versatility
If configuration information is exchanged between network device and multiple UEs to establish aggregation, then the aggregation operation is enabled, but the signaling overhead increases
Solution Approach 1:
The network device combines the configuration information of the first and second communication devices into a single third message. Instead of separately configuring each UE with complete aggregation parameters, the network device merges the configuration data and transmits it efficiently, reducing the total signaling overhead while still enabling both UEs to participate in the aggregation operation.
Data Source
AI summary
Techniques are described for a network device to trigger an aggregation operation. An example wireless communication method includes transmitting, by a network device to a second communication device, a first message that triggers the second communication device to perform an aggregation operation, wherein the second communication device is from a list of one or more communication devices received by the network device from a core network device for performing the aggregation operation or from a first communication device; receiving, from the second communication device, a second message comprising a second configuration information of the second communication device; and transmitting, to the first communication device and in response to the receiving the second message, a third message comprising second configuration information of the second communication device.