Optional Parameter Group Signaling for 5G Beamformed System Information
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Solution Overview
Problem
Existing communication systems face challenges in efficiently transmitting large amounts of common control information to user equipment due to increased path loss at higher frequencies, particularly in 5G networks, where the number of beams required exceeds the concurrent active beams that access points can form, leading to difficulties in delivering flexible system information without excessive overhead.
Innovation Solution
The implementation of optional parameter groups that override or supplement default configurations, encoded in a message and transmitted via beamforming, allowing for flexible delivery of system information within the constraints of a fixed container size, using hybrid transceiver architectures and beam sweeping to cover cell areas with common control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming with multiple beams is used to cover cell area at higher frequencies, then path loss compensation is improved, but the number of concurrent active beams exceeds access point capacity
Solution Approach 1:
The system segments the large amount of common control information into multiple optional parameter groups, each transmitted in separate messages. This allows the information to be delivered in manageable portions that fit within the constraints of limited concurrent active beams, resolving the contradiction between providing comprehensive system information and the physical limitation of beam capacity.
Solution Approach 2:
The patent implements dynamic selection of optional parameter groups based on user equipment capabilities and network conditions. The network can adaptively choose which parameter groups to transmit and when, allowing flexible delivery of system information without requiring all beams to be active simultaneously. This dynamic approach resolves the contradiction by making the system adaptable to the limited concurrent beam capacity.
2Ease of operation
If default configuration parameters are provided to all user equipment, then system information delivery is simplified, but flexibility to override with optional configurations increases overhead
Solution Approach 1:
The patent extracts only the necessary optional parameter groups from the complete set of possible configurations and transmits them separately from the default configuration. Instead of transmitting all possible parameter variations to all user equipment, the system extracts and transmits only those optional groups that are relevant, reducing overhead while maintaining flexibility for user equipment that needs to override defaults.
Solution Approach 2:
The system changes the state of parameter transmission by providing default configurations as a baseline and then selectively transmitting optional parameter groups that can override specific parameters. This parameter-based approach allows user equipment to start with simple default settings and only receive additional configuration data when needed, reducing overall transmission overhead while maintaining flexibility.
Data Source
AI summary
Various communication systems may benefit from improved network communications. For example, messages sent to a user equipment may benefit from having optional configurations of parameters. A method includes determining optional configurations for parameters that override or supplement a default configuration of the parameters. The optional configurations are grouped into optional parameter groups. The method also includes encoding at least one of the optional parameter groups in a message. In addition, the method includes transmitting the message from the network node to a user equipment.