Default Beam Configuration for 5G Control Signaling Overhead
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, there is a challenge in efficiently transmitting control information across multiple transmission points/panels/beams for network cooperative communication, leading to increased overhead in configuring transmission points/panels/beam for each piece of control information.
Innovation Solution
A method where a user equipment (UE) identifies index information related to a control region and a default beam for transmitting uplink control information to a base station, reducing the overhead by pre-appointing a default value for transmission points/panels/beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple transmission points/panels/beams are used for network cooperative communication, then communication reliability is improved, but overhead for configuring transmission points/panels/beam increases
Solution Approach 1:
The patent applies preliminary action by pre-appointing a default beam for uplink control information transmission before actual communication occurs. The base station configures multiple candidate beams and designates one as default in advance, so that when UE needs to transmit control information, it can immediately use the pre-configured default beam without requiring real-time configuration or selection procedures, thus reducing signaling overhead while maintaining reliable multi-beam communication
Solution Approach 2:
The patent applies universality by making the default beam serve multiple functions: it is used for uplink control information transmission, and can also serve as a reference for other uplink transmissions. The same default beam configuration serves both as a dedicated control channel beam and as a fallback option for general uplink communication, reducing the need for separate beam configurations and thereby reducing overall system overhead
Data Source
AI summary
The present disclosure relates to a communication technique for combining an IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, small businesses, security- and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure discloses a method and apparatus for transmitting control information by a terminal for cooperative communication between a plurality of transmission points/panels/beams.