Persistent Resource Allocation Error Recovery via Shared NACK
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Solution Overview
Problem
Wireless communication systems face inefficiencies due to the resource-intensive process of requesting and granting resources for discontinuous communications, which can consume significant resources and reduce bandwidth availability for active users.
Innovation Solution
Implementing a method for persistent resource allocation in wireless communication systems, where a base station schedules client stations for persistent resource allocation, associates them with a shared NACK channel, and configures a persistent allocation information element to manage resource allocation efficiently, including retransmitting information elements in case of errors or changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If discontinuous transmission is implemented to improve resource efficiency, then resource utilization is improved, but the overhead of requesting and granting resources increases
Solution Approach 1:
The patent implements persistent resource allocation where resources are pre-allocated to client stations for a predetermined period without requiring repeated request-grant exchanges. This preliminary action eliminates the need for continuous resource negotiation overhead while maintaining efficient resource utilization during the persistent allocation period.
Solution Approach 2:
The patent establishes continuous resource allocation through persistent allocations that remain valid for multiple transmission opportunities. Once resources are allocated, they continue to be available for use without interruption or re-negotiation, enabling continuous useful action while minimizing the periodic overhead of resource request-grant cycles.
2Quantity of substance
If persistent resource allocation is implemented to reduce overhead, then resource overhead is reduced, but error detection and correction complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where client stations send acknowledgments or negative acknowledgments to the base station regarding received persistent allocation information. This feedback enables the base station to detect errors and retransmit corrupted information elements, managing error detection complexity through structured feedback loops rather than complex inherent error correction.
Solution Approach 2:
The patent uses acknowledgment and negative acknowledgment messages as intermediaries between the base station and client stations to convey error status. These intermediary messages simplify error detection by providing explicit status indicators rather than requiring complex analysis of the communication signals themselves.
3Adaptability or versatility
If persistent resource allocation is used to maximize flexibility in access requests, then access flexibility is improved, but the need for retransmission increases error correction requirements
Solution Approach 1:
The patent employs feedback through acknowledgment and negative acknowledgment messages to maintain reliability in persistent resource allocation. When errors occur in flexible persistent allocations, the feedback mechanism enables detection and retransmission, ensuring that access flexibility does not compromise communication reliability.
Data Source
AI summary
Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.