Reverse Link Power Control via Integrated Assignment Messages
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting assignment messages that include both resource allocation and power control instructions, particularly in multiple-access systems where orthogonal multiplexing is used, as existing methods do not effectively integrate power control with packet format considerations.
Innovation Solution
A method and apparatus for generating and transmitting assignment messages that include both assignment information for reverse link transmission resources and power control instructions, where the power control instruction is generated based on the packet format, ensuring efficient power management and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If power control instructions are transmitted separately from assignment messages, then the assignment message structure remains simple, but power control efficiency deteriorates due to lack of integration with packet format considerations
Solution Approach 1:
The patent combines power control instructions with assignment messages into a single transmitted message. The power control field is integrated into the assignment message structure, allowing simultaneous transmission of resource assignment and power control commands. This merging eliminates separate signaling overhead and ensures power control is coordinated with packet format parameters.
Solution Approach 2:
The assignment message is designed to serve multiple functions simultaneously: resource allocation, packet format specification, and power control instruction. By making the assignment message universal, the system eliminates the need for separate dedicated power control messaging while maintaining comprehensive control capabilities.
2Productivity
If power control is integrated with packet format considerations, then transmission efficiency improves, but message generation complexity increases
Solution Approach 1:
The power control field is merged into the assignment message structure, allowing coordinated optimization of transmission parameters. The integrated structure enables simultaneous consideration of packet format and power control during message generation, improving transmission efficiency without requiring separate processing stages.
Solution Approach 2:
The patent introduces configurable parameters within the integrated message structure, including power control fields that can be adjusted based on packet format requirements. This parameter-based approach allows flexible optimization of transmission efficiency while maintaining a systematic message generation process.
3Ease of manufacture
If separate messages are used for resource assignment and power control, then each message can be optimized independently, but overall system performance deteriorates due to lack of coordination
Solution Approach 1:
The patent merges resource assignment and power control into a single coordinated message structure. This integration ensures that resource allocation decisions and power control instructions are made together, improving system performance through coordinated optimization rather than independent message processing.
Solution Approach 2:
The integrated message structure allows parameters to be adjusted in coordination with each other. Power control parameters can be optimized based on resource assignment parameters and packet format considerations, ensuring overall system performance is maximized through interdependent parameter optimization.
Data Source
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AI summary
Assigning power spectrum density to access terminals within a wireless network environment is provided. Assignment information that includes assignment of reverse link transmission resources is determined and a power control instruction is created for the assigned reverse link transmission resource. An assignment message that includes both the assignment information and the power control instruction is formatted and communicated to the access terminals. The assignment message includes a Reverse Link Power Control field that indicates a transmit power spectral density assigned by the access point to the reverse-link transmission by the terminal.