Joint Encoding Waveform and Slot Information for RACH Signaling
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Solution Overview
Problem
Current wireless communication systems consume excessive over-the-air resources when signaling configuration information during the random access channel (RACH) procedure, as each piece of information is typically signaled in a dedicated manner.
Innovation Solution
The method involves jointly encoding waveform and slot information, allowing the waveform configuration to implicitly convey the resource allocation for RACH messages, thereby conserving resources and enabling additional information to be signaled using the same amount of resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If each piece of configuration information is signaled in a dedicated location and manner, then the information can be clearly conveyed to the UE, but excessive over-the-air resources are consumed
Solution Approach 1:
The patent combines multiple configuration information elements (waveform type and slot information) into a single joint encoding structure. Instead of signaling waveform type in one location and slot information in another dedicated location, both parameters are encoded together in a unified manner, reducing the total number of signaling bits and conserving over-the-air resources while ensuring complete information delivery to the UE
Solution Approach 2:
The patent creates a universal signaling mechanism that conveys multiple types of configuration information through a single encoding structure. This multi-functional approach allows the same signaling resource to carry both waveform type indication and slot information, making the signaling system more efficient and reducing resource consumption
2Loss of energy
If waveform configuration is jointly encoded with slot information, then resource consumption is reduced, but the complexity of decoding increases
Solution Approach 1:
The patent segments the joint encoding structure into distinct interpretable components. The UE can decode the combined signaling by separating the waveform type indication from the slot information based on predefined encoding rules. This segmentation approach allows efficient decoding without requiring complex algorithms, as the structure follows predictable patterns that can be parsed systematically
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A base station may select a waveform configuration and a resource for a user equipment (UE) to use to transmit a random access channel (RACH) message 3 (msg3). The base station may transmit a value indicative of the waveform configuration to the UE, wherein the waveform configuration is further indicative of the selected resource. The UE may receive the value indication and identify the waveform configuration. Based on the waveform configuration, the UE may identify the resource to use to transmit the RACH msg3. The UE may transmit the RACH msg3 using the resource and according to the waveform configuration.