Uplink Traffic Control Device for Delay-Sensitive Wireless Scheduling
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Solution Overview
Problem
Current wireless communication networks experience significant delays in uplink communication, particularly for delay-sensitive traffic such as online gaming, due to the time-consuming process of scheduling requests and grants between mobile stations and base stations.
Innovation Solution
A method and device for scheduling uplink traffic that proactively determines an uplink transmission scheme based on service type indicators, allowing periodic grants without prior requests, thereby reducing delay by pre-determining the data size and frequency of transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional scheduling requests and grants are used for uplink communication, then resource allocation control is maintained, but transmission delay increases significantly
Solution Approach 1:
The base station performs preliminary actions by proactively determining uplink transmission schemes and issuing grants before the mobile station actually needs to transmit data. The base station estimates data size and transmission timing based on service type indicators, then pre-allocates resources, eliminating the need for the mobile station to send scheduling requests and wait for grants.
Solution Approach 2:
The mobile station serves itself by having the base station autonomously determine transmission parameters based on service type indicators. Instead of the mobile station needing to request and wait for scheduling decisions, the base station independently assesses service requirements and allocates resources automatically, making the system self-regulating.
2Productivity
If proactive transmission schemes are implemented without prior requests, then transmission speed increases, but base station control complexity increases
Solution Approach 1:
The base station changes its control parameters by transitioning from reactive grant issuance to proactive transmission scheme determination. It uses service type indicators as input parameters to automatically calculate optimal transmission parameters including data size estimation, timing, and resource allocation, thereby increasing productivity while managing complexity through parameter-based automation.
3Loss of time
If traditional request-grant processes are used, then resource allocation accuracy is maintained, but latency increases for delay-sensitive traffic
Solution Approach 1:
The system implements feedback mechanisms where the base station continuously monitors service type indicators and adjusts transmission schemes accordingly. The mobile station provides feedback through service type indicators, and the base station uses this information to dynamically determine transmission parameters, ensuring both low latency and reliable resource allocation through continuous feedback loops.
Data Source
AI summary
The invention concerns a method, uplink traffic control device and computer program product for reducing the delay of uplink communication between a mobile station and a wireless communication network. The uplink traffic control device (21) comprises an uplink scheme determining unit (24) configured to obtain a service type indicator associated with a mobile station and determine an uplink transmission scheme based on the obtained service type indicator and a transmission control unit (30) configured to periodically grant transmissions to be made from the mobile station according to the uplink transmission scheme in order to speed up mobile station transmissions to the wireless communication network.