Wireless Relay Transmission Control for Direct and Indirect Paths
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Solution Overview
Problem
Current wireless relay technologies lack solutions for implementing duplication transmission and path control in wireless relay scenarios, particularly in multi-path communication environments where both direct and indirect paths are established.
Innovation Solution
A method and apparatus for controlling duplication transmission and path switching in wireless relay scenarios by sending control signaling to activate or deactivate duplication transmission and indicate primary or secondary paths, allowing flexible use of transmission paths to improve data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless relay technology is used to extend cell coverage and improve indoor coverage quality, then coverage area and signal quality are improved, but the system lacks solutions for implementing duplication transmission and path control
Solution Approach 1:
The patent implements dynamic path control by enabling the remote device to switch between direct path and indirect path based on channel conditions. The target device sends control signaling to activate or deactivate duplication transmission and indicate primary/secondary paths, allowing the system to adapt dynamically between different transmission modes (single-path or dual-path) rather than being fixed in one mode.
2Reliability
If duplication transmission is implemented in wireless relay scenario, then transmission reliability is improved, but system complexity and control overhead increase
Solution Approach 1:
The patent introduces control signaling as an intermediary mechanism between the target device and remote device. This control signaling carries indication information about path selection and duplication transmission activation, serving as a mediator that coordinates the complex multi-path transmission without requiring complex peer-to-peer negotiation between devices. The intermediary control mechanism simplifies the overall system complexity by centralizing path management.
3Productivity
If multiple transmission paths are used for duplication transmission, then data transmission efficiency is improved, but delay and processing complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple transmission paths (direct path and indirect path) before actual data transmission is needed. The target device and remote device establish these paths in advance through control signaling exchange, so that when duplication transmission is activated, data can immediately utilize the pre-established paths without additional setup delay. This preliminary path configuration reduces the time loss that would otherwise occur during dynamic path establishment.
Data Source
AI summary
A transmission control method and apparatus, a network side device, and a terminal device are provided. The transmission control method includes: a target device sends first control signaling to a remote device through a direct path between the target device and the remote device, where the first control signaling includes a first indication used for activating or deactivating duplication transmission of a target bearer of the remote device. The target bearer is a bearer for at least two transmission paths of the remote device, and the at least two transmission paths comprise the direct path and at least one indirect path between the target device and the remote device.