Method and device for virtual cell handover between macro base stations
A technology of virtual cell and macro base station, which is applied in the field of communication and can solve unsolved problems such as switching of virtual cells
Active Publication Date: 2019-11-19
ALCATEL LUCENT SHANGHAI BELL CO LTD
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Problems solved by technology
At present, the problem of switching virtual cells between different macro base stations has not been solved
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[0031] The principles of the disclosure will be described below with reference to several example embodiments illustrated in the accompanying drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and implement the present disclosure, rather than to limit the scope of the present disclosure in any way.
[0032] figure 1 A schematic diagram showing a virtual cell in an ultra-dense network with a heterogeneous network structure according to an embodiment of the present disclosure.
[0033] exist figure 1 In an ultra-dense network (UDN) showing a heterogeneous network structure, dense small cells or wireless access points are deployed in the coverage area of a macro base station (MeNB). In a virtual cell, a small cell is selected as the primary small cell, which is used to perform dynamic scheduling for data transmission. Dual connectivity is adopted in this network structure, that is, user equipmen...
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The embodiment of the invention relates to a method and equipment of performing virtual cell switching between macro base stations. The method of performing virtual cell switching between macro base stations includes the steps: sending a first switching request to a target macro base station from a source macro base station for switching user equipment to the target macro base station; giving a response to reception of determination from the target macro base station, indicating the user equipment to switch to the target macro base station, and enabling the user equipment and a virtual cell belonging to the user equipment to maintain connection; sending a second switching request to the target macro base station from the source macro base station so as to switch the virtual cell belonging to the user equipment to the target macro base station; and giving a response to determination from the target macro base station, and indicating the virtual cell to switch to the target macro base station. The method and apparatus of performing virtual cell switching between macro base stations can realize switching of virtual cell between different macro base stations under the current standard; and as switching is performed on different levels, the method of performing virtual cell switching between macro base stations enables data transmission between the user equipment and the virtual cell not to be interrupted during the switching period so as to realize seamless switching.
Description
technical field [0001] Embodiments of the present disclosure relate to the communication field, and more particularly to a method and device for performing virtual cell handover between macro base stations. Background technique [0002] Traffic demands on mobile networks are likely to increase rapidly in the coming years. To meet the above requirements, a possible solution is to deploy very dense networks, such wireless networks are also known as ultra-dense networks (UDN). Currently, virtual cells are considered to handle interference and frequent switching among multiple transmission nodes. In general, a virtual cell consists of a group of small cells (transport nodes) and is dedicated to user equipment. [0003] It is well known that heterogeneous network structures and dual connectivity have broad prospects in future 5G communications. In a heterogeneous network structure, a virtual cell is generated and configured based on the control of a macro base station (MeNB). ...
Claims
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IPC IPC(8): H04W36/00H04W36/04H04W36/08
CPCH04W36/0016H04W36/04H04W36/08
Inventor 佘锋郭海友
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD