Representative Terminal for Dense Receiver Data Transmission
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Solution Overview
Problem
In mobile communication systems, particularly in LTE-A systems, managing multiple terminals carried by a single user leads to increased system overhead and power consumption due to each terminal handling its connection independently, resulting in inefficient data transmission and higher battery usage.
Innovation Solution
A method where one terminal connects to the base station, receives scheduling information, and acts as a representative to receive data streams and channel feedback, allocating identifiers or receiver indicators to other terminals, allowing them to receive data selectively and reducing the number of terminals transmitting to the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each terminal connects to the base station independently, then each terminal can receive data and transmit feedback individually, but system overhead and power consumption increase
Solution Approach 1:
Multiple terminals share a common connection to the base station through a representative terminal. The representative terminal receives scheduling information and data streams for all terminals in the group, and transmits feedback on their behalf. This merging of connection functions reduces the number of individual terminal-base station connections, thereby reducing power consumption while maintaining data transmission reliability for all terminals.
2Reliability
If each terminal connects to the base station independently, then each terminal can transmit feedback individually, but system overhead increases
Solution Approach 1:
The representative terminal consolidates feedback transmission for multiple terminals. Instead of each terminal transmitting feedback independently to the base station, the representative terminal aggregates and transmits feedback for the entire group through a single connection. This reduces signaling overhead and message exchange complexity while maintaining feedback reliability for all terminals.
3Productivity
If multiple terminals are densely located and owned by one user, then spatial correlation is high and operations are similar, but base station cannot recognize they belong to one user
Solution Approach 1:
The representative terminal acts as an intermediary between the group of densely located terminals and the base station. It receives and processes information about other terminals in the group, manages identifier allocations, and coordinates communication on behalf of the entire group. This intermediary function enables the base station to indirectly recognize the association between multiple terminals and their user, improving communication efficiency while preserving user association information.
Data Source
AI summary
A method for transmitting and receiving a signal in a terminal of a mobile communication system, according to one embodiment of the present specification, comprises the steps of: receiving information of another terminal from the other terminal; transmitting, to a base station, a message requesting allocation of an identifier for the other terminal on the basis of the received information of the other terminal; and receiving, from the base station, the message including the identifier allocated for the other terminal. The provided present invention, according to one embodiment of the present specification, allows only the arbitrary receiver to access the base station and receive data therefrom when a plurality of densely located receivers are neighboring each other. At this point, the other receivers can selectively receive a data stream transmitted to each terminal from data channels received by the arbitrary receiver that accesses the base station. To this end, only the arbitrary terminal accessing at least the base station is enabled to allow feedback of the channel.