Base Station Subsystem Paging Multi-Band Terminals
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Solution Overview
Problem
In multi-band networks, base stations struggle to accurately page multi-band terminals due to lack of information about their current frequency band, leading to increased network capacity consumption and poor paging accuracy.
Innovation Solution
A method and apparatus that involve sending a service redirection broadcast message to redirect terminals to a corresponding frequency band, obtaining the terminal's frequency band support capability, and paging the terminal on the determined frequency band, allowing for accurate paging and reduced network capacity consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the BSS pages the multi-band terminal by hashing a frequency point in each frequency band supported by the terminal, then the terminal can be reached, but the paging consumption in the multi-band network becomes much larger than in a single-band network, leading to waste of network capacity
Solution Approach 1:
The invention segments the multi-band terminal paging problem by dividing terminals into single-band terminals and multi-band terminals. For multi-band terminals, it further segments the paging process into two stages: first sending a service redirection broadcast message to redirect the terminal to a specific frequency band, then performing targeted paging on that determined frequency band. This segmentation approach reduces unnecessary paging across all frequency bands while maintaining reliable terminal reachability.
Solution Approach 2:
The invention applies preliminary action by sending a service redirection broadcast message before performing the actual paging operation. This preliminary message redirects the multi-band terminal to a specific frequency band based on its support capability, so that the subsequent paging message only needs to be sent on one determined frequency band rather than searching all bands, thereby reducing network capacity consumption.
2Device complexity
If the BSS stores only the frequency band supported by the terminal, then single-band terminal paging is simple and accurate, but the BSS cannot accurately know the frequency point where a multi-band terminal currently resides
Solution Approach 1:
The invention applies dynamics by making the BSS information storage adaptive rather than static. Instead of storing only the frequency band supported by the terminal, the BSS dynamically stores the determined frequency band for multi-band terminals after receiving the service redirection broadcast message. This dynamic update allows the BSS to track the current frequency band of multi-band terminals accurately without increasing initial storage complexity.
Solution Approach 2:
The service redirection broadcast message acts as an intermediary that bridges the gap between the BSS's limited stored information and the actual current frequency band of multi-band terminals. This intermediary message carries the determined frequency band information from the terminal to the BSS, enabling accurate frequency point determination without requiring the BSS to store complex terminal capability information.
Data Source
AI summary
Embodiments of the present invention provide a method, an apparatus, and a base station subsystem for paging a terminal in a multi-band network. The method includes: obtaining a frequency band support capability of the terminal, where the frequency band support capability is information about one or multiple frequency bands supported by the terminal; if the terminal supports multiple frequency bands, obtaining a corresponding frequency band for the terminal according to the preset rule; and page the terminal on the obtained corresponding frequency band. In the embodiments of the present invention, the base station subsystem, according to the rule, can determine a redirected frequency band for a multi-band terminal and accurately page the multi-band terminal on the redirected frequency band, thereby the consumption of network capacity is reduced.