Wireless Signaling Tone Allocation and Power Control
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Solution Overview
Problem
There is a need for efficient and reliable techniques to send signaling in wireless communication systems, as existing methods do not adequately address the overhead and reliability of signaling transmission in multiple-access systems.
Innovation Solution
The proposed solution involves processing signaling using block codes, convolutional codes, or transformations, and mapping it to specific tones in a time slot, with the number of tones and transmit power adjusted based on channel conditions, allowing for efficient and reliable transmission and reception of data transmission parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signaling is transmitted using conventional methods, then the signaling can be sent, but the overhead is excessive and reliability is insufficient
Solution Approach 1:
The signaling is divided into multiple parts and transmitted on different sets of tones. The first part of the signaling is transmitted on a first set of tones, while the second part is transmitted on a second set of tones. This segmentation allows for more efficient resource utilization and improved reliability through diversity transmission.
Solution Approach 2:
The patent dynamically adjusts transmission parameters including the number of tones allocated for signaling, transmit power levels, and tone selection based on channel conditions. This adaptive parameter adjustment optimizes the trade-off between signaling overhead and transmission reliability under varying channel conditions.
2Reliability
If more tones are allocated for signaling, then signaling reliability improves, but system efficiency decreases due to increased overhead
Solution Approach 1:
The patent transmits only essential parts of the signaling on robust tones to ensure reliable reception of critical information, while other parts are transmitted on different resources. This partial action approach ensures minimum required reliability without allocating excessive tones that would reduce data transmission efficiency.
Solution Approach 2:
The signaling is transmitted across multiple dimensions including different tone sets, time slots, and power levels. By distributing signaling information across these multiple dimensions, the system achieves reliability through diversity without concentrating excessive resources on a single dimension, thereby maintaining overall system efficiency.
3Adaptability or versatility
If fixed tone allocation is used for signaling, then implementation is simple, but adaptability to channel conditions is poor
Solution Approach 1:
The patent implements dynamic tone allocation where the number of tones, specific tone selection, and transmit power for signaling are adjusted based on current channel conditions. This dynamic adaptation allows the system to optimize signaling transmission for varying channel quality while maintaining manageable complexity through structured adaptation rules.
4Reliability
If signaling is transmitted on all available tones, then coverage is maximized, but interference with data transmission increases
Solution Approach 1:
The patent extracts and transmits only the essential parts of the signaling on specific sets of tones that are separately identified from data transmission tones. By taking out only the necessary signaling components and placing them on dedicated tone sets, the system ensures reliable signaling delivery while minimizing interference with data transmission on the remaining tones.
Data Source
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AI summary
Techniques for sending signaling for data transmission in a wireless communication system are described. A transmitter may process signaling for a data transmission based on a block code, a convolutional code, a transformation, etc. The signaling may comprise an identifier of an intended receiver for the data transmission and/or other information such as data rate, resource assignment, etc. The signaling for the data transmission may be mapped to a first set of tones in a time slot. Data for the data transmission may be mapped to a second set of tones in the time slot. The entire signaling may be sent on the first set of tones. Alternatively, the first set of tones may be selected from among multiple sets of tones or pseudo-randomly selected from among available tones based on a first part of the signaling. A second part of the signaling may be sent on the first set of tones.