Configurable Sidelink AGC for Time-Frequency Resource Efficiency
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Solution Overview
Problem
Existing sidelink communication systems inefficiently dedicate resources to automatic gain control (AGC) procedures even when receive power variations are insignificant, leading to unnecessary resource consumption and potential degradation in communication quality.
Innovation Solution
Implement a configurable AGC procedure that allows devices to determine whether to perform AGC based on signal power variations, enabling or disabling AGC resources as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AGC procedure is performed for each time resource, then signal reception quality is maintained, but time-frequency resources are consumed
Solution Approach 1:
The patent applies dynamics by making the AGC procedure configurable and adaptive rather than fixed. The receiving device determines whether to perform AGC based on actual receive power variations, allowing the system to transition between AGC active and inactive states dynamically. This resolves the contradiction by enabling AGC to operate only when necessary, maintaining signal quality when needed while conserving resources when stable.
Solution Approach 2:
The patent changes the parameter of AGC configuration from a static default state to a dynamic configurable state. By introducing a gain control configuration that can be adjusted based on receive power characteristics, the system optimizes the balance between signal reception quality and resource consumption. This allows AGC to be enabled or disabled based on actual communication conditions.
2Reliability
If AGC resources are dedicated for each communication, then signal power variation is addressed, but unnecessary procedures are performed
Solution Approach 1:
The patent implements feedback by having the receiving device monitor actual receive power variations and use this information to determine whether AGC is needed. The device feeds back this determination to the transmitting device, which then adjusts its behavior accordingly. This feedback mechanism eliminates unnecessary AGC procedures while maintaining signal stability when required.
Solution Approach 2:
The receiving device performs self-assessment by independently determining whether AGC is necessary based on its own receive power measurements. This self-service approach eliminates the need for forced AGC execution, allowing the system to automatically optimize its own operation and reduce overhead when stable conditions exist.
3Reliability
If default AGC performance is maintained, then communication robustness is ensured, but resource waste occurs
Solution Approach 1:
The patent applies preliminary action by having the receiving device assess receive power variations before initiating AGC procedures. The device performs a preliminary determination of whether AGC is needed based on configured thresholds or characteristics, and only then allocates resources for AGC. This prevents wasted resources on unnecessary AGC while ensuring robustness when actually needed.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. Some aspects relate to a configurable automatic gain control (AGC) procedure for sidelink communications. A receiving device, a transmitting device, and/or a network node may determine whether AGC training is to be performed for sidelink communications. For example, the receiving device, the transmitting device, and/or the network node may determine whether resources dedicated to the AGC procedure may be used for communicating other information, such as data and/or control information. The receiving device, the transmitting device, and/or the network node may identify an AGC configuration for whether an AGC resource, of a set of resources for communicating one or more signals, includes an AGC message for performing the AGC procedure. The transmitting device and/or the receiving device may communicate the AGC message, the data message, and/or the control message via the AGC resource in accordance with the AGC configuration.