Synchronization Signal Block Indexing for Multi-Beam Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in achieving synchronization between user equipment and base stations, particularly when multiple beam directions are involved, as existing methods lack efficient methods for signal transmission and reception in next-generation communication systems that support enhanced mobile broadband, massive machine-type communications, and ultra-reliable low-latency communications.
Innovation Solution
A method and device configuration that enable user equipment to receive synchronization signal blocks from a base station by detecting the index of a received synchronization signal block using a demodulation reference signal sequence, allowing for synchronization and subsequent signal transmission and reception, utilizing a Gold sequence based on cell ID and SS block index, and supporting transmission via independent beam directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple beam directions are used for signal transmission, then coverage area and communication capacity are improved, but synchronization complexity and difficulty increase
Solution Approach 1:
The patent segments the synchronization signal transmission into multiple SS/PBCH blocks, each associated with a specific beam direction and identified by a unique index. This segmentation allows the system to maintain multiple beam directions for improved coverage while managing synchronization complexity through structured organization of synchronization resources.
Solution Approach 2:
The patent applies preliminary action by transmitting synchronization signal blocks with embedded indices and beam direction information before actual data transmission. This allows user equipment to pre-establish synchronization and identify the correct beam direction, reducing the complexity of real-time synchronization during data communication.
2Measurement precision
If beam direction indexing is implemented for synchronization signals, then signal transmission accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies local quality by associating specific properties (beam direction, transmission timing) with each synchronization signal block index. This allows precise identification and processing of signals from different beam directions while keeping the processing logic structured and manageable through the use of indexed identifiers.
Solution Approach 2:
The patent uses parameter changes by encoding beam direction and timing information into the synchronization signal block index parameters. This enables accurate signal transmission and identification through systematic variation of index parameters, managing processing complexity through standardized parameter encoding and decoding procedures.
3Reliability
If synchronization signal blocks are transmitted in multiple beam directions, then communication reliability is improved, but transmission time and latency increase
Solution Approach 1:
The patent applies periodic action by transmitting synchronization signal blocks in periodic bursts across different beam directions according to a predefined pattern. This allows the system to maintain communication reliability through repeated synchronization opportunities while managing transmission time through structured periodic intervals rather than continuous transmission.
Solution Approach 2:
The patent reduces latency by performing preliminary synchronization actions early in the communication process. User equipment acquires synchronization and beam direction information from indexed SS/PBCH blocks before data transmission begins, enabling faster establishment of reliable communication links and reducing overall transmission time.
Data Source
AI summary
The present invention discloses a method for transmitting and receiving signals between a user equipment and a base station in a wireless communication system and device for supporting the same. More specifically, the invention discloses a method by which, when a base station transmits synchronization signal blocks in various beam directions, a user equipment achieves synchronization with the base station by detecting the index of a received synchronization signal block and then transmits and receives signals with the base station.