Paging Response Offload via Small Cell Indication
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in offloading data traffic from macrocells to small cells, leading to unnecessary signaling load and power consumption due to frequent cell reselections and inefficient handling of paging responses.
Innovation Solution
The system provides a method for user equipment to determine whether to respond to a paging message via a macrocell or a small cell by including an indication in the paging message, allowing direct offloading to small cells and reducing the need for an RRC connection with the macrocell, thereby facilitating efficient data traffic offloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment always responds to paging messages via macrocell, then network coverage and reliability are maintained, but signaling load and power consumption increase due to unnecessary RRC connections
Solution Approach 1:
The patent applies local quality by differentiating the paging response behavior based on the specific cell type (macrocell vs. small cell) and user equipment location. Instead of a uniform response mechanism, the system selectively directs paging responses to either macrocell or small cell based on local network conditions and cell capabilities, thereby reducing unnecessary RRC connections while maintaining coverage reliability.
2Productivity
If frequent cell reselection is performed to find optimal small cells, then data traffic offloading is improved, but signaling load and power consumption increase
Solution Approach 1:
The patent implements preliminary action by pre-configuring user equipment with small cell information and establishing small cell measurements and evaluations before actual data traffic offloading is needed. This allows the system to quickly determine optimal small cells without performing frequent cell reselection procedures, thereby reducing signaling load and power consumption while maintaining effective traffic offloading capability.
3Loss of energy
If user equipment responds to paging via small cell, then signaling load on macrocell is reduced, but network complexity and access control requirements increase
Solution Approach 1:
The patent employs an intermediary mechanism where the macrocell base station acts as a coordinator that provides small cell information to user equipment and manages the overall paging process. This intermediary approach allows user equipment to respond to paging via small cells (reducing macrocell signaling load) while the macrocell maintains network-wide coordination and access control, thereby managing network complexity through a centralized control point.
4Reliability
If RRC connection is established with macrocell for every paging response, then network control and monitoring are maintained, but power consumption and latency increase
Solution Approach 1:
The patent extracts the essential network control functions from the traditional RRC connection establishment process. Instead of requiring full RRC connection setup for every paging response, the system extracts and utilizes pre-established small cell measurement results and pre-configured small cell information to enable direct paging responses. This maintains network control through alternative monitoring mechanisms while significantly reducing latency and power consumption associated with repeated RRC connection establishment.
Data Source
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AI summary
Methods and apparatus, including computer program products, are provided for providing a preference to a user equipment to indicate how the user equipment should respond to a paging message and the like. The method may include receiving, at a user equipment, an indication representative of whether the user equipment should respond to a base station or respond to an access point; and accessing, based on the received indication, at least one of the base station or the access point to enable offloading to the access point. Related apparatus, systems, methods, and articles are also described.