CDMA Allocation A-MAP IE for Wireless Resource Management
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Solution Overview
Problem
In wireless communication systems, terminals unnecessarily decode resource allocation messages, and the CDMA allocation IE is not suitable for the 802.16m system, leading to inefficient resource allocation during the random access process.
Innovation Solution
A method and apparatus for transmitting and receiving resource allocation information using CDMA Allocation A-MAP IE, which includes fields indicating whether to allocate resources for bandwidth requests or ranging, with optional fields for uplink/downlink resource allocation, burst size offset, and subframe distribution, to efficiently manage resource allocation in wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals decode all resource allocation messages to check for their own allocations, then they can ensure they receive their allocated resources, but unnecessary decoding operations consume excessive processing time and energy
Solution Approach 1:
The patent extracts the terminal identifier from the resource allocation message and places it in a dedicated indication field that terminals can quickly check before performing full message decoding. This allows terminals to immediately determine whether the message is intended for them, avoiding unnecessary decoding operations for messages meant for other terminals.
Solution Approach 2:
The patent performs preliminary identification by including terminal-specific indication information at the beginning of the resource allocation message. Terminals can perform this initial check before committing resources to full message decoding, thereby preliminarily filtering out messages not intended for them and reducing overall processing time.
2Adaptability or versatility
If the CDMA allocation IE format is used for 802.16m system, then backward compatibility is maintained, but the format is not suitable for efficiently differentiating between bandwidth requests and ranging operations
Solution Approach 1:
The patent modifies specific local fields within the CDMA allocation IE format to serve different purposes. By adjusting particular bits or fields to indicate whether the allocation is for bandwidth request or ranging operations, the patent maintains the overall format structure for compatibility while improving functional differentiation for efficiency.
Solution Approach 2:
The patent introduces dynamic field configurations that can change based on the operation type. The resource allocation message structure becomes adaptable, allowing certain fields to be present or absent, or to take on different meanings, depending on whether the allocation is for bandwidth request or ranging, thereby improving efficiency while maintaining format flexibility.
Data Source
AI summary
The present invention relates to a method and apparatus for transmitting/receiving resource allocation information in a random access process in a wireless communication system. The method for transmitting/receiving resource allocation information in a random access process in a wireless communication system, according to one aspect of the present invention, involves a base station receiving a code from a terminal, and transmitting, to the terminal, CDMA Allocation A-MAP IE (code division multiple access allocation Advanced-MAP information element) including a field which indicates whether it is a source allocation for a bandwidth request or a resource allocation for ranging.