UE Aggregation Triggering for High-Bandwidth Cell-Edge Transmission
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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 UEs at cell edges, due to limited transmission power and the difficulty in aggregating multiple UEs for transmission and reception.
Innovation Solution
The implementation of communication device-triggered aggregation techniques, where multiple UEs are aggregated to perform transmission and reception, with one UE acting as the primary anchor and others as secondary, enabling coordinated protocol entity mirroring and coordinated RRC configurations to enhance data transmission capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple UEs are aggregated to perform transmission and reception, then high data rates and large transmission bandwidths are achieved, but device complexity and coordination overhead increase
Solution Approach 1:
The patent merges multiple UEs into an aggregation group where they collectively perform transmission and reception functions. The UEs are combined to achieve high data rates and large transmission bandwidths that individual UEs cannot provide alone, directly resolving the contradiction by combining resources to improve productivity while managing complexity through coordinated protocols.
Solution Approach 2:
The aggregation mechanism enables UEs to serve multiple functions - individual UEs can act as primary or secondary UEs, and the same UE can participate in different aggregation groups for different services. This multi-functionality allows the system to achieve high data rates while reusing existing UE capabilities across multiple scenarios, reducing overall system complexity.
2Power
If low-capability UEs at cell edges aggregate multiple UEs for transmission, then transmission power limitations are overcome, but the difficulty in aggregating and coordinating multiple UEs increases
Solution Approach 1:
The patent combines multiple UEs into an aggregation group where their transmission capabilities are merged. Low-capability UEs at cell edges can aggregate with other UEs to achieve sufficient transmission power for high data rate services, directly overcoming the power limitation while the coordination mechanism manages the complexity of multiple UE involvement.
Solution Approach 2:
The patent introduces network-side coordination entities that act as intermediaries to manage the aggregation of multiple UEs. These intermediaries handle the complex coordination tasks including selecting which UEs to aggregate, configuring their roles (primary/secondary), and managing resource allocation, thereby reducing the coordination burden on individual UEs while enabling power aggregation.
3Reliability
If protocol entity mirroring and RRC configurations are implemented for aggregation, then coordinated transmission and reception are enabled, but system complexity increases
Solution Approach 1:
The patent implements protocol entity mirroring where secondary UEs are configured with copies of the protocol entities from the primary UE. This copying approach enables coordinated transmission and reception by ensuring that secondary UEs have the necessary protocol knowledge to function correctly within the aggregation group, achieving reliability through replicated configurations.
Solution Approach 2:
The patent performs RRC configurations and protocol entity mirroring in advance before actual data transmission begins. By pre-configuring the aggregation group members with their roles, protocol entities, and coordination parameters, the system enables reliable coordinated operation without requiring complex real-time negotiations during data transmission, thereby managing configuration overhead efficiently.
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AI summary
Techniques are described for a communication device to trigger an aggregation operation. An example wireless communication method includes transmitting, by a first network device to a first communication device, a first message that includes the aggregation related information of a second communication device with which the first communication device is configured to perform an aggregation operation with the second communication device; and receiving, from the first communication device, a second message that indicates that the first communication device received the first message.