Paging User Group Segmentation for Wireless Signaling Overhead Reduction
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Solution Overview
Problem
In next-generation wireless communications systems, the use of beamforming technology to improve data rates and efficiency leads to challenges in beam management, particularly in reducing signaling overheads associated with sending paging messages across multiple beams, which are necessary due to the plurality of beams and beam directivity.
Innovation Solution
A method is introduced where a network device receives a random access preamble from a terminal device, identifies the associated paging user group, and sends a paging message using a paging identifier to scramble the physical downlink control channel, thereby reducing signaling overheads by grouping terminal devices into paging user groups and using existing random access procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paging messages are sent through beam scanning in each beam, then paging coverage is improved, but signaling overheads increase excessively
Solution Approach 1:
The patent segments terminal devices into different paging user groups (first paging user group and second paging user group) based on their random access preamble selections. This segmentation allows the network device to send different paging messages to different groups through different beams, reducing the need to send paging messages to all terminal devices in every beam, thereby reducing signaling overheads while maintaining paging coverage.
Solution Approach 2:
The patent performs preliminary grouping of terminal devices into paging user groups before the actual paging process. Terminal devices are pre-configured with random access preambles and associated with specific paging user groups. When paging is needed, the network device only needs to send paging messages to the relevant groups rather than scanning all beams for all devices, reducing signaling overhead in advance.
2Productivity
If beamforming technology is used to improve data rates, then communication efficiency is improved, but beam management complexity increases
Solution Approach 1:
The patent segments terminal devices into different paging user groups and associates each group with specific random access preambles. This segmentation simplifies beam management by allowing the network device to handle paging for different groups through different beams systematically, reducing the complexity of managing paging across multiple beams while maintaining the high data rates enabled by beamforming.
Solution Approach 2:
The patent introduces dynamic random access preambles that are associated with different paging user groups and beams. The network device can dynamically select which paging user group to page by choosing appropriate random access preambles, making the beam management process more flexible and adaptable while reducing overall complexity.
Data Source
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AI summary
This application discloses a paging method and apparatus. The method includes: receiving, by a network device, a random access preamble from a terminal device, where the random access preamble is used to request a paging message; obtaining, by the network device, a paging identifier associated with the random access preamble; and sending, by the network device, a paging message to the terminal device based on the paging identifier. This application can reduce signaling overheads in a paging process.