2D Data Burst Allocation in Wireless MAP Messages
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Solution Overview
Problem
Current wireless communication systems, such as IEEE 802.16, face inefficiencies in data burst allocation due to interference from adjacent base stations and the inability to support various operation modes and Modulation and Coding Schemes (MCSs), leading to reduced transmission efficiency.
Innovation Solution
A method and system for transmitting MAP messages that include operation mode information, allowing for efficient data burst allocation using selected MCSs, and supporting various operation modes by allocating data bursts in a 2-dimensional manner within a frame, determined by a symbol period axis and frequency band axis, and transmitting messages indicating the selected MCS to mobile stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If 1-dimensional data burst allocation is used, then the allocation process is simple, but transmission efficiency is reduced due to interference from adjacent base stations
Solution Approach 1:
The patent transitions from 1-dimensional sequential allocation to 2-dimensional allocation using symbol offset and subchannel offset. This allows data bursts to be positioned in both time and frequency domains, enabling better interference avoidance while maintaining allocation simplicity through standardized messaging
2Reliability
If a single error-robust MCS is used for all MAP messages, then reliability is improved, but transmission efficiency is reduced
Solution Approach 1:
The patent applies different MCS levels to different MAP messages based on their specific requirements and channel conditions. Each BS can select appropriate MCS for each MAP message individually, allowing error-robust MCS for critical messages and more efficient MCS for others, optimizing both reliability and efficiency locally
3Productivity
If 2-dimensional data burst allocation is used, then transmission efficiency is improved, but the ability to support various operation modes and MCSs is limited
Solution Approach 1:
The patent designs the MAP message structure to be universally applicable across multiple operation modes and MCS configurations. The standardized message format with flexible fields can accommodate different allocation schemes and modulation schemes, making the system multi-functional without sacrificing efficiency
Data Source
AI summary
A method is provided for transmitting a MAP message in a wireless communication system. A base station transmits the MAP message including operation mode information indicating a data burst allocation scheme, to a mobile station. The mobile station identifies a data burst according to the operation mode information included in the MAP message received from the base station.