Cell Information Acquisition Synchronization Block Association
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Solution Overview
Problem
Current wireless communication systems, particularly in LTE and NR, face inefficiencies in cell management and information acquisition due to challenges in handling multiple SSBs, asynchronous deployments, and the inability to distinguish between SSBs associated and not associated with RMSI, leading to failed measurements and incorrect configuration settings.
Innovation Solution
The proposed solution involves methods for wireless devices to receive and process synchronization blocks, determine associations with configuration information, and perform RF retuning to obtain necessary cell information, allowing for explicit failure indications and adjusted timing configurations, thereby improving cell information acquisition and reporting processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device receives multiple synchronization blocks and attempts to acquire configuration information from all of them, then the completeness of cell information acquisition is improved, but the complexity of processing and the time required increases significantly
Solution Approach 1:
The patent extracts and identifies the specific synchronization block that contains the required configuration information by checking the association between SSBs and configuration information. The device determines which SSB is associated with the requested configuration information and focuses processing only on that specific SSB, rather than processing all received SSBs.
Solution Approach 2:
Instead of trying to obtain configuration information from all synchronization blocks and then filtering, the patent inverts the approach by first determining whether the received synchronization block is associated with the configuration information before attempting to extract it. This is done by checking if the SSB contains the necessary configuration data.
2Reliability
If the wireless device performs RF retuning to obtain configuration information from synchronization blocks at different frequencies, then the completeness of information acquisition is improved, but the time delay and energy consumption increase
Solution Approach 1:
The patent performs preliminary determination of whether the received synchronization block is associated with the configuration information before initiating RF retuning operations. By checking the association in advance, the device avoids unnecessary frequency retuning and information acquisition attempts, thereby reducing time delay and energy consumption.
3Measurement precision
If the network node provides timing difference information for asynchronous deployments, then the accuracy of cell management is improved, but the complexity of timing configuration increases
Solution Approach 1:
The patent introduces timing difference information as an intermediary parameter that mediates between the serving cell and the target cell in asynchronous deployments. The network node provides this timing difference information to the wireless device, which then uses it to accurately determine the association between synchronization blocks and configuration information, improving cell management accuracy without requiring the device to handle complex timing configurations directly.
Data Source
AI summary
Disclosed are methods, apparatus and systems for cell information acquisition and reporting. One method includes receiving a request for configuration information and a synchronization block, determining that the synchronization block is not associated with the configuration information, and transmitting a failure indication in response to the request. Another method includes receiving a request for configuration information and a first synchronization block, determining that the first synchronization block is not associated with the configuration information, and the first synchronization block comprises information related to a second synchronization block that is associated with the configuration information, and determining whether a radio frequency retuning operation can be performed in order to obtain the configuration information.