Paging Message Routing for Wireless Peer-to-Peer Networks
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in spectrum utilization and peer discovery in peer-to-peer networks, leading to difficulties in establishing direct communication between wireless terminals.
Innovation Solution
A method and apparatus for generating and routing paging messages through infrastructure nodes to initiate direct peer-to-peer communication between wireless terminals, allowing for efficient communication setup even when terminals are out of range of a base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional peer-to-peer networks operate in an asynchronous manner, then peers can perform different tasks at different times, but peers encounter difficulty in identifying and communicating with disparate peers within range
Solution Approach 1:
The patent implements periodic synchronization intervals where peers transition between sleep mode and active communication mode. During synchronization intervals, peers wake up to exchange paging messages and establish connections, then return to sleep mode. This periodic structure enables asynchronous operation while ensuring peers are available at predictable intervals for communication, resolving the contradiction between flexibility and discoverability.
Solution Approach 2:
The patent introduces base stations as intermediary nodes that facilitate peer-to-peer communication. When peers need to communicate, they use base stations to relay paging messages and establish connections. This intermediary approach allows peers to maintain asynchronous operation while simplifying the peer discovery process, as the base station coordinates the connection establishment between disparate peers.
2Area of stationary object
If wireless spectrum is allocated for wide area network cellular communication, then coverage area is extended, but spectrum is not uniformly utilized across time and space leading to unused spectrum in given geographic locations or time intervals
Solution Approach 1:
The patent segments communication into two distinct modes: infrastructure-based communication for coverage extension and direct peer-to-peer communication for local data transfer. By segmenting the communication paths, the system can use wide area network infrastructure sparingly (only for paging and initial connection) while utilizing direct peer-to-peer links for actual data transfer, thereby improving spectrum utilization efficiency while maintaining extended coverage capability.
Solution Approach 2:
The patent implements periodic synchronization intervals where peers wake up to check for paging messages from the infrastructure, then return to sleep mode. During non-synchronization periods, peers communicate directly without infrastructure involvement. This periodic infrastructure engagement minimizes spectrum usage by the wide area network while maintaining coverage benefits, as the infrastructure is activated only when necessary for paging rather than continuous communication.
3Productivity
If direct peer-to-peer communication is established between wireless terminals, then communication efficiency is improved, but power consumption increases when terminals must continuously monitor for paging messages
Solution Approach 1:
The patent implements periodic synchronization intervals where terminals wake up at predetermined times to monitor for paging messages, then return to sleep mode. Instead of continuous monitoring, terminals only activate their receivers during these periodic intervals. This approach maintains communication setup efficiency by ensuring terminals are periodically available to receive paging messages, while dramatically reducing power consumption by keeping terminals in low-power sleep mode between intervals.
Solution Approach 2:
The patent enables terminals to autonomously manage their own power consumption by implementing local sleep-wake cycles based on predetermined synchronization intervals. Each terminal independently determines when to wake up for paging message monitoring and when to return to sleep mode, without requiring continuous infrastructure control. This self-service approach maintains communication efficiency while minimizing power consumption, as terminals only consume significant power during brief synchronization intervals.
Data Source
AI summary
Systems and methodologies are described that facilitate paging within a peer-to-peer communication network. A first wireless terminal monitors the paging channel of a wide area network. When a second wireless terminal intends to establish a peer-to-peer connection with the first wireless terminal, the second wireless terminal generates a paging message and transfers the message to the WAN, which routes the paging message to a base station. The base station uses its paging channel to send a paging message to the target first wireless terminal. The paging message indicates to the target first wireless terminal that the second wireless terminal intends to establish a peer-to-peer connection with the first wireless terminal. The paging message may further include parameters to be used to establish the peer-to-peer connection. Upon reception of the paging message, the second wireless terminal sends a signal directly to the first wireless terminal to start the direct peer-to-peer communication.