Timing-Aware SSB Beam Measurement for Wireless UEs
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Solution Overview
Problem
In wireless communication networks, especially at high frequencies like 6 GHz and above, the high path-loss poses challenges for user equipment (UE) to quickly and accurately acquire synchronization with base stations (BS) due to the need for efficient beam refinement, which affects spectral efficiency and network throughput.
Innovation Solution
The UE measures timing offsets for multiple beams of a synchronization signal block (SSB) to determine the number of beams to measure, categorizing them into groups based on timing offset values, allowing for more accurate and rapid beam refinement, thereby improving spectral efficiency and network resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE measures multiple beams of SSB to improve beam refinement accuracy, then the measurement precision and spectral efficiency are improved, but the time consumption and power consumption increase
Solution Approach 1:
The patent segments the beam measurement process by dividing beams into multiple groups based on timing offsets. The UE measures beams in groups rather than individually, and can stop measuring a group once a threshold is met, thereby reducing overall measurement time while maintaining accuracy. This segmentation allows parallel processing of beam measurements and enables early termination of measurement procedures.
Solution Approach 2:
The patent applies preliminary action by having the UE measure timing offsets for all beams before actual beam refinement measurement. This preliminary timing offset measurement allows the UE to categorize beams into groups in advance, enabling more efficient measurement procedures and reducing the time required for subsequent beam refinement operations.
2Measurement precision
If the UE measures multiple beams of SSB to improve beam refinement accuracy, then the measurement precision and spectral efficiency are improved, but the power consumption increases
Solution Approach 1:
The patent segments beam measurement into grouped measurements based on timing offsets. By organizing beams into groups and applying threshold-based early termination, the UE can reduce the total number of measurements required, thereby lowering power consumption while maintaining sufficient beam refinement accuracy for effective communication.
Solution Approach 2:
The patent performs preliminary timing offset measurements to categorize beams into groups before actual power-intensive beam refinement measurements. This preliminary categorization enables the UE to conduct more efficient measurements, reducing overall power consumption by avoiding unnecessary measurements of all beams when grouped measurements suffice.
3Reliability
If the BS transmits synchronization signals in multiple beam directions to overcome high path-loss, then the coverage and signal strength are improved, but the device complexity and measurement overhead increase
Solution Approach 1:
The patent segments beams into multiple groups based on timing offsets, allowing the UE to measure and evaluate beams in an organized manner. This segmentation reduces measurement overhead by enabling the UE to process beams in manageable groups rather than handling all beams simultaneously, thereby reducing device complexity while maintaining the ability to evaluate multiple beam directions for overcoming high path-loss.
Solution Approach 2:
The patent performs preliminary timing offset measurements to categorize beams into groups before actual signal strength evaluation. This preliminary action organizes the beam measurement process, reducing the complexity of evaluating multiple beam directions by establishing a structured approach that simplifies the measurement and selection process.
Data Source
AI summary
Wireless communications systems and methods related to monitoring and/or measuring synchronization signal blocks (SSBs) in one or more beam directions based on timing offsets associated with the beam directions are provided. In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving, from a wireless communication device, a synchronization signal block (SSB); and measuring, based on timing offsets for each of a plurality of beams of the SSB, one or multiple beams of the SSB. In some instances, the UE determines a number of beams of the SSB to measure based on the timing offsets for each of the plurality of beams of the SSB.