Reduced SS Block Measurement Set for 5G Connected State Mobility
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Solution Overview
Problem
In the NR/5G system, user equipment in a connected state faces inefficiencies in mobility management due to the need to measure complete synchronization signals, leading to unnecessary resource waste and prolonged measurement times.
Innovation Solution
A method where a network device configures and transmits a reduced measurement set to user equipment, comprising a first SS block set with fewer SS blocks or a signal set containing part of the SS blocks, allowing for more flexible and efficient synchronization signal measurement in a connected state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If user equipment in connected state measures complete SS block like idle state, then measurement accuracy is maintained, but measurement time increases and terminal resources are wasted
Solution Approach 1:
The patent segments the complete SS block measurement into two modes: idle state mode (measuring all SS blocks) and connected state mode (measuring only configured SS blocks). This segmentation allows the system to apply different measurement strategies based on operational state, reducing measurement time in connected state while maintaining necessary accuracy through selective measurement of critical SS blocks.
Solution Approach 2:
In connected state, the patent implements partial action by measuring only a configured subset of SS blocks rather than the complete set. The network configures specific SS blocks that are sufficient for mobility management in connected state, avoiding unnecessary measurement of other blocks and thus reducing measurement time and resource consumption while maintaining adequate measurement accuracy.
2Loss of information
If user equipment in connected state measures complete SS block, then comprehensive cell information is obtained, but terminal resource consumption increases
Solution Approach 1:
The patent divides cell information acquisition into two pathways: obtaining comprehensive cell information through complete SS block measurement in idle state, and obtaining essential mobility management information through configured SS block measurement in connected state. This segmentation allows terminal to conserve resources in connected state while still acquiring necessary cell information for mobility management.
Solution Approach 2:
The patent extracts and configures only the essential SS blocks needed for connected state mobility management, separating them from the complete SS block set. This extraction approach allows terminal to measure only the critical subset of SS blocks that provide necessary cell information, reducing terminal resource consumption while maintaining information completeness for mobility purposes.
3Device complexity
If measurement mechanism follows idle state protocol in connected state, then simplicity is maintained, but measurement efficiency decreases
Solution Approach 1:
The patent implements a dynamic measurement mechanism that adapts based on terminal operational state. In idle state, the terminal uses the simple complete SS block measurement protocol. In connected state, the terminal switches to a configured SS block measurement protocol with reduced complexity, measuring only network-configured blocks. This dynamic adaptation improves measurement efficiency in connected state while maintaining operational simplicity through state-dependent protocol selection.
Data Source
AI summary
Transmitting, by the network device, the configuration information to a user equipment, wherein the configuration information is used to instruct the user equipment to use a measurement set to measure a synchronization signal, wherein the measurement set is used by a user equipment in a connected state to measure a synchronization signal, the measurement set is a first synchronization signal block (SS block) set, and the first SS block set includes a number of SS blocks smaller than a number of SS blocks included in a second SS block set which includes an SS block used by the user equipment in an idle state to measure the synchronization signal; or the measurement set is a signal set, and the signal set includes a part of signals in Y SS blocks, and Y is a positive integer.