Synchronization Signal Block Indication via Bitmap Parameters
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Solution Overview
Problem
The existing radio communication systems, particularly the New Radio (NR) system, lack a detailed method for configuring and transmitting synchronization signals, which is crucial for initial network connection and efficient resource allocation, especially in high-frequency bands and diverse service scenarios.
Innovation Solution
A method and apparatus for indicating the time location of synchronization signal blocks in the NR system, involving the reception of system information with bitmaps to determine transmission SS blocks, and generating these blocks to include Physical Broadcast Channels (PBCH) and synchronization signals, minimizing signaling overhead and optimizing initial stage synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detailed method for configuring synchronization signal blocks is implemented, then synchronization accuracy and network resource allocation efficiency are improved, but system complexity and signaling overhead increase
Solution Approach 1:
The synchronization signal block configuration is segmented into multiple parameters including bitmap parameters for indicating time locations, frequency resource indicators, and transmission power parameters. This segmentation allows the system to provide detailed synchronization control while organizing complexity into manageable, modular components that can be independently configured and processed
Solution Approach 2:
The system performs preliminary configuration by pre-defining synchronization signal block templates and time location patterns through bitmap parameters. This preliminary action enables terminals to predict and prepare for synchronization signal receptions in advance, improving synchronization accuracy while reducing real-time processing complexity
2Reliability
If synchronization signal blocks are transmitted in multiple time locations, then coverage and reliability are improved, but signaling overhead and power consumption increase
Solution Approach 1:
The patent introduces a bitmap parameter dimension that efficiently encodes multiple time location information. Instead of separately signaling each time location, the bitmap provides a compact binary representation that indicates which time locations contain synchronization signals, reducing signaling overhead while maintaining the ability to transmit across multiple time locations for improved reliability
Solution Approach 2:
The system uses template-based copying where a defined synchronization signal block structure is replicated across multiple time locations indicated by the bitmap. This copying approach ensures consistent and reliable synchronization signals are transmitted at multiple locations without requiring separate configuration for each instance, thereby reducing signaling overhead
3Adaptability or versatility
If wideband operation with larger system bandwidth is implemented, then network capacity and service diversity are improved, but resource allocation complexity and interference management difficulty increase
Solution Approach 1:
The patent applies local quality by allowing different frequency resources to be assigned to different synchronization signal blocks based on specific service requirements and channel conditions. This enables the system to optimize resource allocation locally across the wideband spectrum, managing complexity by treating different frequency regions independently rather than uniformly
Data Source
AI summary
Disclosed is a method and apparatus for generating information indicating a synchronization signal (SS) block. A method comprises: determining a frequency resource associated with a wireless device; determining, by a base station and based on the determined frequency resource, whether to add or omit a first bitmap indicating a plurality of groups in which at least one synchronization signal (SS) block is transmitted: generating, based on the determining to add the first bitmap, system information comprising a parameter comprising: the first bitmap; and a second bitmap indicating a position of one or more transmission SS blocks in each of the plurality of groups; and transmitting, based on the position, the one or more transmission SS blocks each comprising a Physical Broadcast Channel (PBCH) and a synchronization signal.