Random access method and device
A random access and random access signal technology, applied in the field of communication, can solve the problems of prolongation of random access, misalignment of sending beam and receiving beam, etc., and achieve the effect of solving delay problem, improving efficiency and measuring accuracy
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no. 1 example
[0074] Such as figure 1 As shown, the first embodiment of the present invention provides a random access method on the terminal side. The random access method includes:
[0075] Step 11, detecting the cell synchronization signal sent by the base station, and determining the direction of arrival of the cell synchronization signal;
[0076] Step 12, according to the direction of arrival of the synchronization signal of the cell, determine the target transmission direction of the random access signal;
[0077] Step 13, sending the random access signal in the target sending direction;
[0078] Step 14: Receive an acknowledgment signal sent by the base station in the incoming direction of the random access signal, and access the base station.
[0079] In the first embodiment of the present invention, the terminal detects the downlink cell synchronization signal sent by the base station, and can obtain the best direction of arrival of the downlink signal, that is, the direction of...
no. 2 example
[0100] Such as figure 2 As shown, the second embodiment of the present invention provides a random access method on the base station side, and the random access method includes:
[0101] Step 21, sending a cell synchronization signal;
[0102] Step 22, detecting the random access signal sent by the terminal in the target sending direction after determining the target sending direction of the random access signal based on the incoming direction of the cell synchronization signal, and determining the incoming wave direction of the random access signal ;
[0103] Step 23: Send an acknowledgment signal in the incoming direction of the random access signal to confirm the access of the terminal.
[0104] In the above embodiments of the present invention, the terminal detects the downlink cell synchronization signal sent by the base station, and can obtain the best direction of arrival of the downlink signal, that is, the direction of arrival of the cell synchronization signal. T...
no. 3 example
[0115] Such as Figure 4 As shown, the third embodiment of the present invention provides a device for random access, including:
[0116] A synchronization signal detection module 41, configured to detect a cell synchronization signal sent by a base station, and determine the direction of arrival of the cell synchronization signal;
[0117] A sending direction determining module 42, configured to determine the target sending direction of the random access signal according to the direction of arrival of the cell synchronization signal;
[0118] An access signal sending module 43, configured to send the random access signal in the target sending direction;
[0119] The receiving module 44 is configured to receive an acknowledgment signal sent by the base station in the incoming direction of the random access signal, and access the base station.
[0120] Specifically, the synchronization signal detection module 41 in the third embodiment of the present invention includes:
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