Direct Terminal Communication With Matched Time-Frequency Resources
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Solution Overview
Problem
Existing communication methods in ultra-reliable low-latency scenarios introduce latency jitter due to multiple wireless nodes, affecting data transmission efficiency and potentially causing device breakdowns.
Innovation Solution
Configuring terminal devices with matching time-frequency domain resources for direct data transmission between them, allowing uplink data from one device to be received and processed as downlink data by the other without network device processing, using synchronized modulation, encoding, and scrambling codes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data transmission follows the conventional path through network device and core network, then data can be reliably transmitted between terminal devices, but transmission latency increases due to multiple intermediate nodes
Solution Approach 1:
The patent extracts the data transmission path from the conventional network infrastructure (network device, core network) and establishes a direct peer-to-peer connection between terminal devices. By taking out the intermediate nodes from the transmission path, the patent eliminates the latency introduced by multiple wireless nodes while maintaining transmission reliability through direct device-to-device communication.
Solution Approach 2:
The patent introduces a matching time-frequency domain resource configuration as an intermediary mechanism to enable direct terminal-to-terminal communication. The network device configures matching resources for both terminals, acting as a mediator that sets up the direct connection without being part of the actual data transmission path, thus reducing latency while maintaining network control.
2Adaptability or versatility
If multiple wireless nodes are involved in data transmission, then network coverage and connectivity are improved, but latency jitter increases affecting ultra-reliable low-latency communication
Solution Approach 1:
The patent segments the communication function into two parts: network management (handled by the network device through configuration) and data transmission (handled directly between terminals). This segmentation allows the network to provide connectivity management while the direct terminal-to-terminal path eliminates latency jitter in the actual data transfer.
Solution Approach 2:
The patent applies preliminary action by having the network device pre-configure matching time-frequency domain resources for both terminals before direct communication occurs. This preliminary configuration enables terminals to communicate directly without real-time network intervention, reducing latency jitter while maintaining network oversight for connectivity management.
Data Source
AI summary
A communication method and apparatus, a storage medium, and a chip system are provided to reduce data transmission latency, and relate to the field of communication technologies. In this application, a network device sends first configuration information to a first terminal device, and sends second configuration information to a second terminal device. The first configuration information includes information about a time-frequency domain resource for sending uplink data by the first terminal device. The second configuration information includes information about a time-frequency domain resource for receiving downlink data by the second terminal device. The time-frequency domain resource for sending the uplink data by the first terminal device is the same as the time-frequency domain resource for receiving the downlink data by the second terminal device, and the uplink data sent by the first terminal device may be received by the second terminal device through an air interface. The second terminal device processes the received uplink data as downlink data, and obtains information from the uplink data. Data may be directly communicated between the first terminal device and the second terminal device through the air interface. Therefore, the data transmission latency is reduced.