SIB1 Transmission Timing for Lower NR Detection Overhead
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing NR protocol's fixed 160 ms transmission period for SIB1 results in high detection overheads and potential deterioration of reception performance for terminal devices, especially when network conditions change, necessitating beam sweeping to enhance coverage.
Innovation Solution
A method for dynamically adjusting the transmission period or location of SIB1 based on indication information received from the network device, using synchronization signals or DCI, to reduce blind detection overheads and improve reception performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the transmission period of SIB1 is extended to enhance network coverage, then the network coverage is improved, but the detection overheads of the terminal device increase
Solution Approach 1:
The patent applies dynamics by making the SIB1 transmission period adjustable rather than fixed. The network device dynamically determines the transmission period based on actual network conditions and terminal device requirements, allowing the system to adapt between extended coverage and reduced overheads as needed
Solution Approach 2:
The patent changes the parameter of transmission period from a fixed 160ms value to a variable parameter that can be configured based on network conditions. This allows optimization of both coverage and overheads by adjusting the timing parameter dynamically
2Area of stationary object
If the transmission period of SIB1 is extended to enhance network coverage, then the network coverage is improved, but the reception performance of the terminal device deteriorates
Solution Approach 1:
The system dynamically adjusts the transmission period based on actual network conditions and terminal device status, ensuring that reception performance is maintained while coverage is enhanced. The network device can modify the period to optimize both coverage and reception reliability
Solution Approach 2:
The network device determines the transmission period based on feedback about network conditions and terminal device requirements. This feedback mechanism ensures that reception performance is maintained while achieving extended coverage through appropriate period adjustment
3Area of stationary object
If beam sweeping is performed to enhance network coverage, then the network coverage is improved, but the overheads of broadcast information transmission increase
Solution Approach 1:
The patent makes the SIB1 transmission period dynamic and network-condition-dependent, allowing the system to reduce broadcast information overheads when coverage enhancement is not critical, while extending the period when coverage is the priority
Solution Approach 2:
The transmission period parameter is changed from fixed to variable, enabling optimization of broadcast information overheads by adjusting the timing based on actual network conditions and coverage requirements
Data Source
AI summary
Methods, apparatuses, and storage media for transmitting a system information block are described. In an example implementation, a network device sends indication information to a terminal device. The terminal device determines a period of periodic transmission of a system information block (SIB) based on the received indication information, and receives, based on the period, a SIB1 sent by the network device. Alternatively, the terminal device determines a transmission location of aperiodic transmission of a system transport block based on the indication information, and receives, at the indicated transmission location, a SIB1 sent by the network device.