Random access method, network equipment and terminal equipment

Abstract

The embodiment of the invention provides a random access method, network equipment and terminal equipment. The random access method comprises the following steps: the terminal equipment receives a system message sent by the network equipment on the first downlink carrier, wherein the system message comprises first information required for random access to a first uplink carrier and second information required for random access to a second uplink carrier, the frequency of the first uplink carrier is greater than that of the second uplink carrier, and the frequency of the first downlink carrieris the same as that of the first uplink carrier; the terminal equipment sends a random access request message on the first uplink carrier or the second uplink carrier; and the terminal equipment receives a random access response message sent by the network equipment on the first downlink carrier. According to the random access method provided by the embodiment of the invention, the terminal devicecan complete random access on the first uplink carrier or the second uplink carrier, the success rate of random access is improved, and the uplink coverage performance of the network device is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a random access method, network equipment, and terminal equipment. Background technique [0002] Currently, Long Term Evolution (LTE) and its evolution system (LTE Advanced, LTE-A) are widely deployed in the world, and will provide communication services for users in a relatively long period of time. The standard formulation of the New Radio Access Technology (NR) of the fifth-generation communication system (5th-Generation, 5G) is in progress, and it is expected to be put into commercial use around 2018. Therefore, the coexistence of LTE and NR will exist for a long period of time in the future. In the research project of NR, it also includes the technology research of coexistence scenarios of LTE and NR. [0003] When deploying LTE cells and NR cells, NR cells are deployed in high-frequency bands, and LTE cells are deployed in low-fre...

AI Technical Summary

Problems solved by technology

[0005] From the above random access process, it can be seen that the UE can only perform random access on the F1 uplink carrier, but cannot perform random access on the F2 uplink carrier.

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