SSB Beam Scheduling and Resource Mapping for 5G NR Detection
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Solution Overview
Problem
The 5G NR system lacks flexibility in designing common signals, leading to resource wastage and inefficiency due to fixed beam directions and resource allocation, which cannot dynamically adjust to varying terminal densities.
Innovation Solution
A method is introduced to flexibly send common signals by grouping them into sets, allowing for adjustable beam directions and resource allocation based on service requirements, using various grouping rules to optimize resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If common signals are sent on fixed beam directions, then the system design is simple, but the detection probability is low and resources are wasted
Solution Approach 1:
The patent applies dynamics by making the beam directions dynamic rather than fixed. The network device determines multiple beam directions for sending common signals based on terminal detection capabilities, allowing the system to adapt beam directions to actual communication needs rather than using predetermined fixed directions, thereby improving detection probability while maintaining reasonable system complexity
Solution Approach 2:
The patent changes the parameter of beam direction from fixed to variable. By determining multiple beam directions and allowing terminals to detect common signals on different beams according to their capabilities, the system transforms the static beam direction parameter into a dynamic one that can be adjusted based on service requirements and terminal conditions
2Reliability
If multiple common signals are sent on different beams, then the detection probability is improved, but the resource allocation becomes complex
Solution Approach 1:
The patent segments the common signal transmission into multiple beam directions. Each common signal is associated with specific beam direction(s), allowing terminals to detect signals on appropriate beams. This segmentation enables flexible resource allocation where different time-frequency resources can be assigned to different beam directions, improving detection probability while managing resource allocation complexity through structured segmentation
Solution Approach 2:
The patent makes the common signal transmission universal by enabling the same common signal to be transmitted on multiple different beam directions. This multi-functionality allows a single common signal to serve multiple detection purposes across different beams, improving detection probability while avoiding the need for completely separate resource allocations for each beam
3Productivity
If fixed resources are allocated to common signals, then the resource management is simple, but the resource efficiency is low
Solution Approach 1:
The patent applies dynamics to resource allocation by making resource assignments flexible rather than fixed. The network device can dynamically allocate time-frequency resources to common signals based on actual service requirements, terminal detection capabilities, and beam directions, thereby improving resource efficiency while managing complexity through dynamic adaptation rather than rigid fixed allocations
Data Source
AI summary
Embodiments of this application provide a wireless communication method, a communication apparatus, and a communication system. In the method, a terminal determines, based on a detected SSB, a first index of the SSB in a first set and a second index of the SSB, and then determines a resource of the SSB. One SSB may correspond to one or more resources, and time division multiplexing may be performed between different resources. Therefore, there is a plurality of sending occasions for one SSB. Each SSB corresponds to one transmit beam direction, so that a sending occasion of an SSB corresponding to a transmit beam direction may be flexibly adjusted. When a plurality of SSBs in one set are sent, a sending sequence of SSBs corresponding to different transmit beam directions may be determined according to a service requirement, to further determine a resource occupied by each SSB.