RACH Occasion Segmentation for Mixed-Resolution ADC Modes
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing random access channel procedures to efficiently manage different resolution levels of analog to digital converters (ADCs) for improved communication performance.
Innovation Solution
Implementing a method and apparatus that utilize configuration information to identify and communicate using sets of random access channel occasions (ROs) associated with either low-resolution or high-resolution ADCs, depending on the network node's mode, to enhance communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single set of RACH occasions is used for all communication modes, then the procedure is simple, but communication performance deteriorates when ADC resolution varies
Solution Approach 1:
The patent divides the RACH occasions into multiple distinct sets (first set for low-resolution ADC mode, second set for high-resolution ADC mode). Each set contains RACH occasions configured with specific parameters appropriate for its corresponding ADC resolution level, allowing the system to segment the communication procedure based on hardware capabilities and achieve reliable communication across varying conditions
2Reliability
If multiple sets of RACH occasions are configured for different ADC resolutions, then communication performance improves, but configuration complexity increases
Solution Approach 1:
The patent performs preliminary configuration by pre-defining multiple sets of RACH occasions with their respective parameters before actual communication occurs. The network node is configured in advance with knowledge of which RACH occasion set corresponds to which ADC resolution level, enabling efficient selection during operation without requiring complex real-time reconfiguration
3Use of energy by moving object
If the network node switches between different ADC resolution modes, then energy efficiency improves, but timing synchronization becomes more difficult
Solution Approach 1:
The patent segments RACH occasions into distinct temporal groups associated with different ADC resolution modes. By separating low-resolution and high-resolution RACH occasions in time, the system maintains clear timing boundaries and synchronization markers, making it easier to manage transitions between modes without causing timing conflicts or synchronization loss
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit configuration information associated with identifying a plurality of sets of random access channel (RACH) occasions (ROs), wherein a first set of ROs, of the plurality of sets of ROs, is associated with a first set of parameters for a low-resolution analog to digital converter (ADC) and a first mode of the network node, and a second set of ROs, of the plurality of sets of ROs, is associated with a second set of parameters for a high-resolution ADC and a second mode of the network node. The network node may communicate, when operating in a particular mode of the network node, using a particular set of ROs, of the plurality of sets of ROs, associated with the particular mode of the network node. Numerous other aspects are described.