Grant Management Subheader for Bandwidth Allocation
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Solution Overview
Problem
In communication systems, existing bandwidth allocation methods, such as polling and piggyback schemes, face inefficiencies due to latency and increased overhead when requesting bandwidth for multiple Connection IDs (CIDs) within a Mobile Station (MS), leading to wasted resources and suboptimal allocation.
Innovation Solution
The method involves generating a grant management subheader with an order field and bandwidth field to request bandwidth allocation for a CID other than the generic MAC header CID by concatenating it with the MAC header, allowing for efficient allocation of bandwidth based on predetermined criteria, such as priority and urgency, and canceling unnecessary polling chances to conserve resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If polling scheme is used for bandwidth allocation request, then bandwidth allocation can be requested periodically, but latency increases and resources are wasted when no data needs transmission
Solution Approach 1:
The system enables self-service bandwidth allocation where the MS autonomously determines when bandwidth is needed and requests it immediately through piggybacking on uplink data transmissions, eliminating the need for periodic polling and reducing both latency and resource waste
Solution Approach 2:
The patent transforms the periodic polling mechanism into an event-driven approach where bandwidth requests occur only when necessary (when uplink data is present), converting regular periodic actions into conditional periodic actions that reduce unnecessary resource allocation
2Reliability
If separate bandwidth requests are made for each CID, then each CID can be allocated appropriate bandwidth, but overhead increases and resource utilization decreases
Solution Approach 1:
The patent merges multiple CID bandwidth requests into a single piggybacked grant management subheader that contains bandwidth requests for multiple CIDs simultaneously, reducing overhead while maintaining the ability to allocate bandwidth accurately to each individual CID
Solution Approach 2:
The grant management subheader is designed as a universal structure that can carry bandwidth requests for multiple different CIDs within a single message, making the bandwidth request mechanism multi-functional and reducing the need for separate request messages for each CID
Data Source
AI summary
A method and apparatus for requesting bandwidth allocation and allocating a bandwidth in response to the request in a communication system are provided, in which an mobile station detects a second CID requiring bandwidth allocation, the second CID being different from a first CID included in a MAC header, generates a grant management subheader including an order field and a bandwidth field, the order field being for writing a rank of the second CID in a CID list listing CIDs of the mobile station according to a predetermined criterion and the bandwidth field being for writing a bandwidth required for the second CID, concatenates the grant management subheader to the MAC header, and transmits the concatenated MAC header and grant management subheader to a base station to request bandwidth allocation for the second CID.