Group Paging Area Determination Using Geolocation
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Solution Overview
Problem
Conventional mechanisms are unable to accurately determine paging areas when managing M2M users in groups, leading to inefficient resource usage and potential overload of the RAN, which can impact conventional H2H users.
Innovation Solution
A method and device that utilize a RAN device to receive control plane messages from an SCS, including additional information elements for group identity and absolute geographical location, allowing the RAN to determine a more precise paging area using cell coverage information, thereby initiating group paging in the appropriate cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional paging mechanisms are used for group management, then the network can handle large numbers of M2M users, but the paging area cannot be accurately determined leading to resource waste and RAN overload
Solution Approach 1:
The patent embeds additional information elements (group identity and absolute geographical location) within the existing control plane message structure. This nested approach allows the system to carry extra paging area information without fundamentally altering the message framework, thereby improving paging area determination accuracy while minimizing structural complexity changes
Solution Approach 2:
The patent introduces an absolute geographical location information element as an intermediary that bridges the gap between group identity and specific paging area determination. This intermediary enables the RAN device to accurately map group members to their geographical locations and determine appropriate paging areas without requiring complex direct mapping mechanisms
2Reliability
If paging is initiated in a large area to ensure all group members are reached, then coverage is improved, but resource waste increases and RAN becomes overloaded
Solution Approach 1:
The patent enables different paging areas to be determined for different groups based on their specific geographical locations. Instead of using a uniform large paging area for all groups, each group receives localized paging in the specific cells where its members are located, thereby maintaining reliable coverage while minimizing resource waste
Solution Approach 2:
The patent segments the paging process by group identity and geographical location, allowing the network to divide the large paging area into smaller, group-specific paging areas. This segmentation ensures that paging messages are transmitted only in the necessary cells, improving reliability for each group while reducing overall network resource consumption
3Object-generated harmful factors
If random access is randomized or dedicated PRACH is allocated to minimize congestion, then access conflict is reduced, but the root cause of paging area inaccuracy remains unresolved
Solution Approach 1:
The patent performs preliminary determination of the paging area using absolute geographical location information before initiating the random access process. By accurately identifying which cells contain group members beforehand, the system prevents unnecessary paging messages from being transmitted, thereby eliminating the root cause of access congestion rather than merely mitigating its symptoms
Data Source
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AI summary
Examples of the present disclosure provide a method and a device for communicating paging area information. A radio access network (RAN) side device can determine a smaller area for group paging by using information of a group paging area provided by a services capability server (SCS) and cell coverage information. Therefore, when users are managed in groups, paging areas determined can be more accurate, and paging efficiency can be increased, waste of resources resulted from performing group paging in a too-large paging area can be avoided. The mechanism can prevent random access of a large number of users who have received the group paging from overloading the RAN and from impacting conventional human-to-human (H2H) users.