Shared Uplink State Flag for Wireless Bandwidth Optimization
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Solution Overview
Problem
In wireless communication networks, managing inactive mobile stations with delay-sensitive uplink packet services is challenging as base stations must maintain dedicated Uplink State Flag (USF) transmission opportunities to minimize delay when these stations become active again, leading to inefficient bandwidth allocation.
Innovation Solution
Implementing a shared Uplink State Flag (USF) system where multiple mobile stations are assigned a common USF value, allowing them to use predefined symbol segments within uplink bursts to indicate activity, thereby reducing the need for dedicated USF opportunities and optimizing bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If dedicated USF transmission opportunities are maintained for inactive mobile stations, then delay sensitivity requirement is met, but uplink bandwidth allocation efficiency deteriorates
Solution Approach 1:
Multiple mobile stations share a common USF value instead of each having dedicated USF opportunities. The base station assigns a shared USF to multiple inactive mobile stations, allowing them to collectively use fewer uplink transmission opportunities while still meeting delay requirements when any station becomes active.
Solution Approach 2:
The shared USF mechanism serves multiple functions: it provides delay-sensitive access for inactive mobile stations, enables efficient bandwidth utilization by serving multiple users with one allocation, and maintains compatibility with existing uplink packet service frameworks.
2Quantity of substance
If dedicated USF opportunities are reduced for inactive mobile stations, then uplink bandwidth allocation efficiency improves, but delay sensitivity requirement deteriorates
Solution Approach 1:
The system dynamically adjusts USF allocation based on mobile station activity state. Inactive mobile stations share USF opportunities to improve efficiency, while active stations receive dedicated USF assignments to ensure delay sensitivity requirements are met during active transmission periods.
Data Source
AI summary
A mobile station (MS) operating within a radio network includes a processing unit having an active mode and an inactive mode. The mobile station includes a transmitter in communication with the processing unit. The mobile station includes a memory in communication with the processing unit for storing uplink payload. The mobile station includes a radio interface in communication with the radio network and the transmitter; when there is uplink payload to transmit when the processing unit is in the inactive mode, the transmitter transmitting an activity indication to a base station over the radio interface, the processing unit changing to active mode, and the transmitter transmitting the uplink payload to the base station over the radio interface. A method for a mobile station operating within a radio network. A method for a base station operating within a radio network.