Access Control Parameter Segmentation in NR SIBs
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Solution Overview
Problem
The existing method of transmitting access control information in the NR system occupies a large quantity of system resources, leading to adverse effects on overall resource deployment due to the excessive overhead of access control parameters.
Innovation Solution
A method where a network side device transmits an access control information list and a mapping relationship between each group of access control parameters and access control groups, allowing the UE to acquire the necessary parameters efficiently, thereby reducing resource usage by preventing repeated transmissions of the same parameters across different groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the LTE system's organization principle of access control parameters is used in the NR system, then complete coverage of all access control groups is achieved, but system resource occupancy increases excessively
Solution Approach 1:
The patent divides the 64 access control groups into multiple subsets, where each subset is associated with a different SIB. This segmentation allows the network to broadcast access control parameters for only a portion of groups in each SIB, rather than all groups simultaneously, thereby reducing the resource occupancy per SIB while maintaining complete coverage across all groups through multiple SIBs.
2Loss of information
If all access control parameters are transmitted through a single SIB, then complete parameter information is provided, but the SIB size exceeds the maximum allowed transmission limit
Solution Approach 1:
The patent segments the access control parameters into multiple SIBs, with each SIB containing parameters for a specific subset of access control groups. This division ensures that no single SIB exceeds the maximum transmission limit while collectively providing complete parameter information across all SIBs.
Solution Approach 2:
The patent introduces a new dimension of organization by associating different access control group subsets with different SIBs. Instead of organizing parameters within a single SIB, the solution distributes parameters across multiple SIBs along the SIB dimension, allowing complete parameter coverage while respecting individual SIB size constraints.
3Reliability
If access control parameters for all groups are broadcast, then comprehensive access control is achieved, but terminal reception and processing time increases
Solution Approach 1:
By dividing access control groups into subsets across multiple SIBs, the patent reduces the amount of data the terminal needs to process at once. The terminal can receive and process parameters for one subset per SIB, reducing reception and processing time compared to receiving all parameters simultaneously, while still achieving comprehensive access control through multiple SIBs.
Data Source
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AI summary
A method and a device for transmitting access control information, and a network side device are provided. The method for transmitting access control information includes: transmitting to a UE an access control information list and a mapping relationship between each group of access control parameters in the access control information list and an access control group.