Sensing Protocol PDU Transmission Beyond RRC Signaling
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Solution Overview
Problem
The integration of communication and sensing signals in related technologies leads to increased complexity and reduced readability of the radio resource control (RRC) protocol.
Innovation Solution
The method involves generating a sensing protocol protocol data unit (PDU) that includes sensing protocol layer information and transmitting it through RRC, service data adaptation protocol (SDAP) service data unit (SDU), or packet data convergence protocol (PDCP) service data unit (SDU), decoupling the sensing function from the RRC function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sensing function and RRC function are coupled together through RRC signaling, then communication and sensing integration is achieved, but protocol complexity increases and readability deteriorates
Solution Approach 1:
The patent segments the protocol stack by introducing a dedicated sensing protocol layer (above application layer and below transport layer) that handles sensing-specific functions. This separates sensing protocol processing from the general-purpose RRC protocol, allowing RRC to focus on radio resource control while the sensing protocol layer handles sensing message generation, parsing, and processing. The segmentation is evident in the protocol stack diagram showing distinct layers with clear functional boundaries.
Solution Approach 2:
The patent extracts sensing-specific protocol processing from the RRC protocol by creating a separate sensing protocol layer. The sensing protocol PDU (Protocol Data Unit) is extracted as a distinct data structure that carries sensing information independently from RRC signaling. This extraction allows the RRC protocol to remain focused on its core functions while sensing operations are handled by the dedicated sensing protocol layer.
2Adaptability or versatility
If sensing protocol PDU is transmitted through multiple transmission manners (RRC message, SDAP SDU, PDCP SDU), then transmission flexibility is improved, but system complexity increases
Solution Approach 1:
The sensing protocol PDU is designed with multi-functionality to be transmitted through multiple transmission channels: RRC messages for control plane signaling, SDAP SDUs for QoS-aware data transmission, and PDCP SDUs for reliable data delivery. This universal design allows the same sensing protocol structure to adapt to different transmission requirements without creating separate protocols for each channel, thereby achieving flexibility without proportionally increasing complexity.
Data Source
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AI summary
This application provides a method, an apparatus, a device, and a medium for information transmission, belonging to the field of communication technologies. The information transmission method includes: generating, by a first communication device, a sensing protocol protocol data unit (PDU), wherein the sensing protocol PDU comprises sensing protocol layer information; and transmitting, by the first communication device, the sensing protocol PDU to a second communication device, wherein the sensing protocol PDU is transmitted through one of the following transmission manners: a radio resource control (RRC) message, a service data adaptation protocol (SDAP) service data unit (SDU), or a packet data convergence protocol (PDCP) service data unit (SDU).