Communication method and equipment

Abstract

Embodiments of the present invention relate to a communication method and device. The method includes: receiving indication information, where the indication information is used to instruct a user equipment to establish and / or maintain uplink synchronization between the user equipment and a first cell controlled by a first base station; When the device is in uplink synchronization with the first cell according to the indication information, the user equipment is in the radio resource control RRC connection state, and the serving cell of the user equipment is the second cell controlled by the second base station; The first cell for uplink synchronization, and for communication based on the first cell. The communication method and device provided by the embodiments of the present invention reduce the interruption time of data transmission caused by UE switching between cells.

Description

technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a communication method and device. Background technique [0002] With the popularization of smart phones, the user's traffic demand is increasing. Dense small base station deployment is an effective way to cope with the increasing traffic demand, and it will also be a development trend in the future. However, due to the small coverage area of ​​the small base station, user equipment (User Equipment; UE for short) may move out of the coverage area of ​​the small base station soon after entering the coverage area of ​​the small base station, resulting in frequent handover of the UE, causing user experience poor. [0003] Aiming at this problem, it can be solved by a dual connectivity (Dual Connectivity; DC for short) technology at present. Specifically, the DC technology supports multiple cells under two base stations to perform carrier aggregation (Carr...

AI Technical Summary

Problems solved by technology

[0004] However, if the DC technology is used to solve the problem of frequent handovers caused by UE movement, the macro base station needs to be used as the primary base station, and the small base station is used as the secondary base station. The DC technology requires the UE to communicate at the primary base station (macro base station), which is not conducive to UE In addition, the UE must have the capability of Carrier Aggregation (CA for short), that is, it can support uplink CA and downlink CA at the same time, otherwise it cannot use DC

Therefore, for a UE that does not support DC, it will quickly move out of the coverage of the small base station after entering the coverage of the small base station, which will cause frequent switching of the UE, resulting in a long interruption of data transmission, causing user poor experience

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