Method for Separating Control Plane and User Plane Based on Carrier Aggregation

Abstract

The invention relates to a method for realizing separation of control plane and user plane based on carrier aggregation. Wherein, the base station includes a macro base station and a micro base station respectively for establishing a communication connection with the user equipment, and the method includes: respectively setting the macro base station and the micro base station as a primary serving cell and an auxiliary serving cell; for scheduling resources on the macro base station, controlling The signaling is used and sent prior to the first MAC CE signaling; in the previous step, if the scheduling resources on the macro base station can satisfy the first MAC CE signaling use in addition to the control signaling, then The macro base station sends the first MAC CE signaling; otherwise, the macro base station sends the first MAC CE signaling to the micro base station; and for scheduling resources on the micro base station, the first MAC CE control signaling takes precedence over the data part Use and send. The method according to the present invention realizes the optimal allocation of scheduling resources on the macro base station under the condition of ensuring higher mobility management.

Description

technical field [0001] The present invention relates to the field of wireless communication, and more specifically, relates to a method for realizing separation of control plane and user plane based on carrier aggregation in a base station and user equipment of a wireless communication network. Background technique [0002] In today's heterogeneous wireless communication network, there are generally macro base stations with a larger coverage area and micro base stations with a relatively smaller coverage area. figure 1 A schematic diagram 100 of a network architecture in the prior art is shown. It can be seen from the figure that in such a network environment, the macro base station 110 provides the most basic network coverage (the part shown in the dotted background in the figure), and at the same time , such as micro base stations 121, 122, 123, and 124 with smaller power (ie, smaller network coverage (areas marked with backslashes in the figure)) provide higher-speed netw...

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Problems solved by technology

In this way, on the one hand, RRC signaling may not fully utilize the scheduling resources on the macro base station, that is, the remaining part of the scheduling resources on the macro base station may be used by other signaling, but due to the traditional Only RRC signaling is propagated on the macro base station, so that this part of the remaining scheduling resources will be wasted; on the other hand, an important type of "control signaling", that is, MAC CE signaling, is also eager to be able to pass the scheduling of the macro base station resources, and transmission on the scheduling resources of the micro base station will cause the transmission delay brought by the X2 interface, which is unfavorable for the communication of the wireless network and the optimization of subsequent scheduling

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