P2P and WAN Spectrum Subframe Segmentation
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Solution Overview
Problem
Existing wireless communication networks face challenges in efficiently supporting peer-to-peer (P2P) communication, particularly in sharing resources between wide area network (WAN) and P2P communication, especially due to regulatory constraints and interference issues.
Innovation Solution
Designating specific subframes in the WAN uplink spectrum for P2P communication, allowing P2P mobile entities to use WAN physical layer channels for control and data transmission, and implementing time division multiplexing to concurrently support WAN and P2P communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire WAN uplink spectrum is allocated for WAN communication, then WAN communication reliability is improved, but P2P communication capability deteriorates (no dedicated resources for P2P)
Solution Approach 1:
The WAN uplink spectrum is segmented into two distinct groups of subframes: a first group dedicated to WAN communication and a second group dedicated to P2P communication. This segmentation allows both WAN and P2P communications to operate simultaneously with guaranteed resources, resolving the contradiction between WAN reliability and P2P capability by providing dedicated time slots for each communication type.
2Productivity
If the entire WAN uplink spectrum is allocated for WAN communication, then network capacity for WAN is improved, but resource sharing efficiency deteriorates (resources cannot be shared with P2P)
Solution Approach 1:
By segmenting the uplink spectrum into dedicated WAN subframes and dedicated P2P subframes, the system enables resource sharing between WAN and P2P communications without compromising WAN network capacity. The first group of subframes ensures WAN productivity while the second group enables P2P resource utilization, thereby improving overall resource sharing efficiency.
Solution Approach 2:
The WAN uplink spectrum is designed to serve multiple functions by allocating different subframe groups to different communication types. The same physical uplink resources are universally utilized for both WAN communication (first group of subframes) and P2P communication (second group of subframes), maximizing resource sharing efficiency while maintaining WAN capacity.
3Adaptability or versatility
If P2P communication is allowed on the uplink spectrum without dedicated subframes, then P2P communication adaptability is improved, but interference with WAN communication increases
Solution Approach 1:
The segmentation of uplink subframes into dedicated WAN and dedicated P2P groups eliminates interference by ensuring that P2P transmissions only occur in the second group of subframes while WAN transmissions occur in the first group. This temporal separation maintains P2P adaptability while preventing harmful interference to WAN communication.
Solution Approach 2:
The network entity acts as an intermediary by designating and managing the separation between WAN and P2P subframes. This intermediary control ensures that P2P communication can adaptively use designated resources while the network entity prevents interference by enforcing the subframe allocation structure, keeping WAN and P2P transmissions in separate time slots.
Data Source
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AI summary
Techniques for supporting peer-to-peer (P2P) communication and wide area network (WAN) communication are disclosed. In one aspect, a method operable by a network entity to facilitate peer-to-peer (P2P) communication in a wireless network includes designating a first group of subframes in a wide area network (WAN) uplink (UL) spectrum for WAN communication. The method includes designating a second group of subframes in the WAN UL spectrum for P2P communication. The method further includes allowing P2P mobile entities to use WAN physical layer channels in the second group of subframes to communicate P2P control information and P2P data.