Relay-Based Control Information Aggregation for Reduced Capacity UEs
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing control information transmission for reduced capacity user equipment (UEs) in relay-based communication, leading to increased network overhead and latency.
Innovation Solution
A relay device and base station configuration that aggregates and transmits control information, using headers to identify and separate control messages for multiple UEs, reducing the load on the base station and improving communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station transmits control information directly to each reduced capacity UE individually, then each UE receives its control information reliably, but the network overhead and latency increase significantly
Solution Approach 1:
The patent combines control information for multiple reduced capacity UEs into a single aggregated message transmitted through the relay device. The base station aggregates uplink control information from multiple UEs and transmits it as one consolidated downlink message, reducing the number of individual transmissions required and thereby lowering network overhead and latency while maintaining reliable delivery to each UE.
Solution Approach 2:
The relay device serves as an intermediary between the base station and reduced capacity UEs. It receives aggregated control information from the base station, processes and separates the control messages for individual UEs, and forwards them to the appropriate UEs. This intermediary approach enables efficient many-to-many communication while reducing direct base station overhead.
2Reliability
If the base station handles control information for all UEs directly, then control information is transmitted accurately, but the base station processing load increases
Solution Approach 1:
The patent segments the control information handling function between the base station and relay device. The base station performs aggregation of control information from multiple UEs and transmits it to the relay device, which then segments the aggregated message into individual control messages for each UE and forwards them appropriately. This segmentation distributes processing load and reduces base station complexity.
Solution Approach 2:
The relay device acts as an intermediary that offloads processing responsibilities from the base station. It receives aggregated control information, performs local processing to separate and route control messages to individual UEs, and manages the many-to-many communication relationships. This intermediary function reduces base station processing load while maintaining transmission accuracy.
3Loss of information
If reduced capacity UEs transmit control information individually to the base station, then each UE's control information is captured, but the network overhead increases
Solution Approach 1:
The patent merges uplink control information from multiple reduced capacity UEs into a single aggregated message at the relay device. Instead of each UE transmitting separately to the base station, the relay device combines their control information into one consolidated transmission, significantly reducing network overhead while ensuring all control information is captured and delivered to the base station.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay device may receive, from a base station, a data message that includes at least first control information associated with a first user equipment (UE) and second control information associated with a second UE. The relay device may transmit, to the first UE, the first control information based at least in part on information included in a header associated with the data message. The relay device may transmit, to the second UE, the second control information based at least in part on the information included in the header. Numerous other aspects are described.