Unified Resource Allocation Message for Frequency Overlay Systems
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Solution Overview
Problem
In frequency overlay systems, the overhead of resource allocation message transmission is high due to the need for separate decoding and processing of resource allocation information for multiple Frequency Assignments (FAs) by mobile stations, increasing complexity and data volume.
Innovation Solution
The system reduces message overhead by transmitting resource allocation information through a single FA channel using address types that designate resource regions across multiple FAs, allowing mobile stations to identify allocated resources using a unique address type and value, thereby eliminating the need for individual FA messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate resource allocation information messages are transmitted for each Frequency Assignment (FA), then resource allocation accuracy is improved, but message overhead and decoding complexity increase proportionally with the number of allocated FAs
Solution Approach 1:
The patent combines multiple separate resource allocation information messages (one for each FA) into a single unified message. The base station transmits one resource allocation information message that contains resource allocation information for multiple FAs simultaneously, rather than transmitting separate messages for each FA. This merging approach reduces the total number of messages transmitted and received, thereby reducing message overhead and decoding complexity while maintaining the ability to accurately allocate resources across multiple FAs.
Solution Approach 2:
The patent creates a universal resource allocation information message structure that can handle multiple FAs with different bandwidths (10 MHz and 20 MHz) using a single message format. The message includes a bandwidth indication field that specifies the bandwidth of each FA, allowing the mobile station to correctly interpret resource allocations regardless of the FA bandwidth. This multi-functional message structure eliminates the need for separate messages for different FA configurations.
2Manufacturing precision
If separate resource allocation information messages are transmitted for each Frequency Assignment (FA), then resource allocation detail is improved, but mobile station decoding complexity increases in proportion to the number of allocated FAs
Solution Approach 1:
The patent merges the decoding process for multiple FAs into a single decoding operation. Instead of requiring the mobile station to decode multiple separate messages (one for each FA), the system transmits a single unified resource allocation information message that contains all necessary resource allocation information for multiple FAs. The mobile station performs one decoding operation to extract resource allocation details for all allocated FAs, thereby reducing decoding complexity while maintaining detailed resource allocation information.
Solution Approach 2:
The unified resource allocation information message structure is designed to be universally applicable to multiple FA configurations. The message includes fields that indicate bandwidth information for each FA, allowing the mobile station to correctly interpret resource allocations for FAs with different bandwidths (10 MHz or 20 MHz) using a single decoding process. This universal structure eliminates the need for multiple decoding paths based on FA configuration.
3Loss of information
If multiple resource allocation information messages are transmitted for mobile stations allocated multiple FAs, then resource allocation completeness is improved, but system efficiency deteriorates due to increased overhead
Solution Approach 1:
The patent combines multiple resource allocation information messages into a single message that contains complete resource allocation information for all allocated FAs. The unified message includes resource allocation details for each FA (such as resource block assignments, modulation and coding schemes) along with bandwidth indication fields. This merging ensures that all necessary resource allocation information is transmitted in one message, maintaining completeness while improving system efficiency by reducing the total number of messages transmitted.
Data Source
AI summary
A resource allocation method and apparatus for a frequency overlay system that is capable of reducing the overhead of the resource allocation information transmitted by the base station is provided. A frequency overlay system of the present invention includes a base station which transmits resource allocation information including an address type selected among multiple address types designating addresses for transmission resource in different patterns and an address value indicating a resource region allocated according to the selected address type and at least one mobile station which receives the resource allocation information and receives data through the resource region identified with reference to the resource type and address value indicated by the resource allocation information; and a resource allocation method of the present invention includes transmitting, at a base station, resource allocation information including an address type selected among multiple address types designating addresses for transmission resource in different patterns and an address value indicating a resource region allocated according to the selected address type, and receiving, at a mobile station, data through the resource region identified with reference to the resource type and address value indicated by the resource allocation information.