Group Paging Occasion Determination for Wireless Signaling Overhead Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, the high paging overheads and resource consumption occur when a network device simultaneously pages a large quantity of terminal devices for multicast services, leading to increased processing burdens and potential conflicts during random access.
Innovation Solution
The method involves terminal devices obtaining a service identity or group identity, determining a paging occasion based on this identity, and receiving a message to initiate paging. This approach allows the network device to page multiple terminal devices on a single paging occasion, reducing signaling overheads and resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device pages each terminal device separately on individual paging occasions, then each terminal device can be paged reliably, but the paging signaling overheads and resource consumption increase significantly
Solution Approach 1:
The patent merges multiple individual paging operations into a single group paging operation. Terminal devices belonging to the same service group share a common paging occasion determined by their group identity (such as group ID or service ID). The network device sends a single paging message to page multiple terminal devices simultaneously, thereby reducing paging signaling overhead while maintaining reliable delivery to all targeted devices.
Solution Approach 2:
The patent introduces a universal paging mechanism that works for both individual and group paging scenarios. The paging occasion determination formula can accommodate different identity types (individual UE ID or group ID), and the paging message structure can carry both group identity information and individual terminal identities, providing multi-functional capability that resolves the contradiction between individual reliability and group efficiency.
2Productivity
If the network device pages a large quantity of terminal devices simultaneously for multicast services, then service data can be delivered efficiently, but the processing burden on the network device increases
Solution Approach 1:
The patent combines multiple paging operations into a single group paging operation. Instead of calculating and managing individual paging occasions for each terminal device, the network device calculates a single paging occasion based on the group identity and pages all terminal devices in the group simultaneously. This merging approach reduces processing burden while maintaining efficient service delivery.
Solution Approach 2:
The patent uses preliminary grouping of terminal devices based on their service requirements. Terminal devices are organized into groups with assigned group identities before paging occurs. This preliminary organization allows the network device to perform single-group paging operations rather than individual paging, significantly reducing processing burden for multicast and broadcast services.
3Quantity of substance
If multiple terminal devices page on the same paging occasion, then resource overheads are reduced, but conflicts during random access may occur
Solution Approach 1:
The patent segments the group paging process into two stages: group-level paging and individual-level random access. First, terminal devices receive the group paging message on a shared paging occasion. Then, each terminal device independently performs random access procedures. This segmentation allows resource sharing at the paging level while maintaining individual access paths, reducing resource overhead without compromising random access reliability.
Solution Approach 2:
The patent introduces dynamic resource allocation for random access following group paging. Terminal devices can dynamically select from multiple random access resources (preambles, time slots, frequency resources) based on their individual needs and channel conditions. This dynamic approach prevents fixed resource conflicts while allowing multiple devices to share the initial paging resource, balancing resource efficiency with access reliability.
Data Source
Figure 1~2
Figure 3~4a
Figure 4b
AI summary
This application discloses a communication method and apparatus, where the method includes: A terminal device or a network device obtains a first identity of a first service, and determines a first paging occasion based on the first identity, where the first paging occasion is used by the terminal device to receive a first message, and the first message is used to page the terminal device. In this method, the first paging occasion is determined based on the first identity, so that the network device pages, on the first paging occasion, a plurality of terminal devices that need to receive data of the first service. Compared with a manner in which the network device pages a plurality of terminal devices on paging occasions respectively corresponding to the plurality of terminal devices, using this method can effectively reduce paging signaling overheads and further reduce resource overheads, and also effectively reduce processing burden of the network device because the network device does not need to separately calculate paging occasions corresponding to the plurality of terminal devices.