Beam-Specific Control Channel Segmentation for 5G System Information
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Solution Overview
Problem
Current 5G mobile communication technologies face challenges in transmitting system information and control channels using beamformed access technology, particularly in managing synchronization, bandwidth, and interference between data and control signaling across multiple beams.
Innovation Solution
The method involves sending downlink signals to multiple terminal devices through multiple beams with beam-specific information, allowing each terminal device to determine system information, synchronization timing, and bandwidth allocation, and dynamically adjusting control channel capacity and resource allocation to reduce interference and enhance transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If beamforming technology is adopted for common channels and signals in 5G, then system coverage and transmission efficiency are improved, but the complexity of transmitting system information and control channels through multiple beams increases
Solution Approach 1:
The patent segments the control channel into beam-specific control channels, where each beam has its own dedicated control channel resources. This segmentation allows control information to be transmitted independently through each beam, simplifying the transmission process compared to trying to manage all control channels across multiple beams simultaneously. The control channel is divided into multiple instances, each associated with a specific beam, making the overall system more manageable despite the increased coverage area.
2Productivity
If multiple beams are used to transmit downlink signals to terminal devices, then transmission efficiency and system flexibility are improved, but interference between data and control signaling across beams increases
Solution Approach 1:
The patent applies local quality by allocating specific time-frequency resources to control channels in a beam-specific manner. Each beam's control channel is assigned dedicated resources that are localized in the time-frequency domain, ensuring that control signaling in one beam does not interfere with data or control signaling in other beams. This localized resource allocation quality reduces inter-beam interference while maintaining high transmission efficiency across multiple beams.
3Adaptability or versatility
If beam-specific configuration parameters are carried for each terminal device, then adaptability and system flexibility are improved, but the overhead of beam-specific information increases
Solution Approach 1:
The patent implements universality by designing beam-specific control channels that can serve multiple functions simultaneously. The same control channel structure is universally applied across all beams, but it adapts to carry beam-specific configuration parameters. This multi-functional control channel design provides the necessary adaptability for different beam configurations while avoiding the need for separate dedicated information structures for each beam, thereby reducing the overall overhead of beam-specific information.
Data Source
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AI summary
Embodiments of the present invention relate to a method for signal transmission, a network device, and a terminal device. The method comprises: a network device generates beam-specific information corresponding to each beam in multiple beams, wherein first beam-specific information of a first beam in the multiple beams is used for indicating a configuration parameter of the first beam, and the configuration parameter of the first beam is used for determining system information of the first beam by the terminal device in the coverage area of the first beam; the network device sends the corresponding beam-specific information to a terminal device in the same cell by means of each beam. According to the method for signal transmission, the network device, and the terminal device in the embodiments of the present invention, for terminal devices within each beam, a network device carries the configuration parameter of the beam in the beam-specific information, so that the terminal devices in the coverage area of the beam obtain the system information of the beam according to the configuration parameter of the beam, and therefore, the transmission efficiency of the system can be improved.