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US 11,641,632 B2Granted
Method for determining synchronization source and terminal
AssigneeDatang Mobile Communications Equipment Co., Ltd.
InventorsLi Zhao, Ying Peng, Rui Zhao, Chenxin Li
Life of this patent
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Abstract
A method for determining a synchronization source and a terminal are provided. The method includes: detecting a synchronization signal of a global navigation satellite system GNSS; when the synchronization signal of the GNSS is detected, using the GNSS as the synchronization source of a terminal; otherwise, determining the synchronization source of the terminal according to receiving capability of the terminal and network configuration information.
Claims12
A method for determining a synchronization source, applied to a terminal, comprising:
- detecting a synchronization signal of a global navigation satellite system (GNSS);
- when the synchronization signal of the GNSS is detected, using the GNSS as the synchronization source of a terminal;
- otherwise, determining the synchronization source of the terminal according to receiving capability of the terminal and network configuration information;
- after using the GNSS as the synchronization source of the terminal, the method further comprises:
- sending the synchronization signal on a synchronization sub-frame of configured different bandwidth parts (BWP) according to subcarrier spacing (SCS) supported by the terminal and sending capability of the terminal;
- wherein determining the synchronization source of the terminal according to the capabilities of the terminal and network configuration information comprises:
- detecting the synchronization signal sent by the synchronization source on the synchronization sub-frame of the configured different BWPs according to the receiving capability of the terminal and the SCS supported by the terminal;
- and
- determining the synchronization source of the terminal according to the synchronization signal sent by the synchronization source;
- wherein when the terminal supports one synchronization source, the determining the synchronization source of the terminal according to the synchronization signal sent by the synchronization source comprises:
- determining the synchronization source of the terminal according to at least one of a frequency band or received power of the synchronization signal sent by the synchronization source,
- wherein the determining the synchronization source of the terminal according to the SCS comprises:
- when the received power of the synchronization signal detected by the terminal meets the requirements of the terminal, and the priority of synchronization source for sending the synchronization signal is the same, selecting one synchronization source with the largest SCS as the synchronization source of the terminal.
10 more elements
A terminal, comprising:
- a transceiver, configured to detect a synchronization signal of a global navigation satellite system (GNSS);
- and
- a processor, configured to, when the transceiver has detected the synchronization signal of the GNSS, use the GNSS as a synchronization source of a terminal;
- otherwise, determine a synchronization source of the terminal according to receiving capability of the terminal and network configuration information;
- wherein the transceiver is further configured to:
- send the synchronization signal on a synchronization sub-frame of configured different bandwidth parts (BWP) according to subcarrier spacing (SCS) supported by the terminal and sending capability of the terminal;
- wherein when the processor determines the synchronization source of the terminal according to the capability of the terminal and network configuration information, the processor is configured to:
- detect the synchronization signal sent by the synchronization source on the synchronization sub-frame of the configured different BWPs according to the receiving capability of the terminal and the SCS supported by the terminal;
- and
- determine the synchronization source of the terminal according to the synchronization signal sent by the synchronization source;
- wherein when the terminal supports one synchronization source, and the processor determines the synchronization source of the terminal according to the synchronization signal sent by the synchronization source, the processor is specifically configured to:
- determine the synchronization source of the terminal according to at least one of a frequency band or received power of the synchronization signal sent by the synchronization source,
- wherein when the processor determines the synchronization source of the terminal according to the SCS, the processor is configured to:
- when the received power of the synchronization signal detected by the terminal meets the requirements of the terminal, and the priority of synchronization source for sending the synchronization signal is the same, select one synchronization source with the largest SCS as the synchronization source of the terminal.
11 more elements
Dependencies are inferred from the claim text.