Time-Domain Synchronization Signaling Without Blind CP Detection
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Solution Overview
Problem
Conventional communication systems require frequent and complex blind detection to determine cyclic prefix (CP) length and resource configuration for uplink and downlink transmissions, affecting system performance.
Innovation Solution
A communication method where a first communication apparatus receives a synchronization signal on a first time domain resource and a message on subsequent time domain resources, with a fixed interval, to obtain CP length and resource configuration information, thereby avoiding blind detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If blind detection is used to determine CP length and resource configuration, then the communication apparatus can obtain necessary parameters, but the detection complexity and signaling overhead increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-configuring the relationship between synchronization signal time domain resources and message time domain resources. The message is transmitted on specific time domain resources that are determined based on the synchronization signal resources, allowing the communication apparatus to directly calculate the resource configuration without blind detection. This resolves the contradiction by eliminating complex detection while maintaining accurate parameter acquisition.
2Productivity
If different resources are configured for uplink and downlink in different scenarios, then spectrum efficiency is improved, but the resource configuration complexity increases
Solution Approach 1:
The patent applies local quality by configuring resources differently for uplink and downlink based on specific scenarios and requirements. The message includes resource configuration information that specifies different time domain resources for uplink and downlink transmissions tailored to different service volumes and performance requirements. This enables optimized spectrum efficiency for each direction while maintaining manageable configuration complexity through structured resource allocation rules.
Data Source
AI summary
A communication method includes receiving, by a first time domain resource, a first signal for synchronization and receiving, by at least one second time domain resource, a first message comprising one or both of cyclic prefix length information and resource configuration information for uplink transmission and downlink transmission, wherein a length of a time interval between the first time domain resource and each of the at least one second time domain resource is a positive-integer number of time domain resource units.