Base Station Synchronization Signal Transmission via Resource Element Groups
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Solution Overview
Problem
High frequency bands, such as the millimeter wave band, in next-generation communication systems face increased path loss due to atmospheric and vegetation factors, affecting the transmission reliability of communication signals.
Innovation Solution
A base station and user equipment configuration that transmits communication signals on multiple resource element groups using different antenna port groups, allowing for space diversity gain and combinatorial reception to improve signal reliability, with indication information carried in the signals to help user equipment determine optimal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If high frequency band (millimeter wave band) is used to reduce multi-antenna configuration sizes and facilitate deployment, then device size and deployment ease are improved, but path loss increases due to atmospheric and vegetation factors, worsening transmission reliability
Solution Approach 1:
The patent divides the communication signal transmission into multiple resource element groups (at least two different groups), each carrying the same information through different antenna port groups. This segmentation allows the system to transmit identical data over multiple independent paths, mitigating the impact of high path loss in millimeter wave bands and improving transmission reliability while maintaining compact antenna configurations
Solution Approach 2:
The patent changes the transmission parameters by using different antenna port groups for different resource element groups carrying the same information. This parameter diversification creates multiple independent transmission channels that can overcome the adverse effects of atmospheric and vegetation factors in high frequency bands, resolving the contradiction between small antenna size and reliable transmission
2Reliability
If communication signal is transmitted on multiple resource element groups using different antenna port groups, then transmission reliability is improved through space diversity gain, but device complexity increases
Solution Approach 1:
The patent segments the transmission resources into multiple resource element groups, each handled by a separate antenna port group. This segmentation enables space diversity gain and combinatorial reception to improve reliability, while the modular structure allows user equipment to selectively measure and receive signals from favorable channels, managing complexity through structured resource division
Solution Approach 2:
The patent implements partial diversity by allowing user equipment to measure and select from multiple antenna port groups, receiving signals only from channels with favorable conditions. This partial action approach provides diversity gain without requiring the system to process all possible transmission paths, thereby controlling device complexity while maintaining improved transmission reliability
Data Source
AI summary
A base station, user equipment, and communication signal transmitting and receiving methods. A communication signal transmitting apparatus includes a transmitter; a processor, and non-transitory computer-readable storage medium storing a program for execution by the processor, the program including instructions to determine at least two different resource element groups to use to transmit a synchronization signal, each different resource element group of the at least two different resource element groups used to separately transmit the synchronization signal, and transmit the synchronization signal to user equipment on each of the resource element groups, where, for each resource element group, the synchronization signal transmitted on the respective resource element group carries at least one piece of same information, the same information is cell specific information, and the synchronization signals transmitted on the at least two resource element groups using different beams.