Random access method and terminal

Abstract

The embodiment of the invention discloses a random access method and a terminal, which are applied to the field of communication and are used for enhancing uplink coverage in 5G, 6G and other high-frequency-band communication systems, and the method comprises the steps that network device configures a plurality of SULs in a cell, wherein the plurality of SULs are used for supplementing uplink coverage of the cell; the network device sends configuration information of a plurality of SULs to the terminal device, and the terminal device can select one SUL from the plurality of SULs for random access according to the configuration information after receiving the configuration information. In the embodiments of the present application, a plurality of SULs are included in a cell, so that the demand that a large number of terminals in the cell can access a network can be satisfied, and the success rate of uplink random access of a plurality of terminals can be improved. In the embodiment of the invention, the invention also provides a terminal, and the terminal is used for selecting the first SUL for random access from the plurality of SULs.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 202010524863.4 and the application title "A Method for Providing Auxiliary Information and UE" filed with the China Patent Office on June 10, 2020, the entire contents of which are incorporated herein by reference Applying. technical field [0002] The present application relates to the communication field, and in particular to a random access method and terminal. Background technique [0003] In a fourth generation (4th generation, 4G) communication system and a fifth generation (5th generation, 5G) communication system, a cell generally includes an uplink carrier and a downlink carrier. The terminal equipment receives the downlink signal on the downlink carrier, and sends the uplink signal on the uplink carrier. [0004] The frequency band deployed in the 5G new radio (new radio, NR) system is higher than that of the 4G long term evolution (long termevolution, LTE) sy...

AI Technical Summary

Problems solved by technology

In this application, the network device can be configured with multiple SULs. The multiple SULs are used to improve the uplink coverage of the cell and solve the problem of limited uplink coverage in scenarios where the terminal device is located at the edge of the cell or the terminal device is far away from the network device. The terminal can select the first SUL from multiple SULs to initiate random access, thereby improving user experience

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