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AssigneeHuawei Technologies Co., Ltd.
InventorsQing Wei, Ömer Bulakci, Emmanouil Pateromichelakis, Riccardo Trivisonno, Chenghui Peng
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A network entity is configured to control a handover of a user equipment from a serving base station to a candidate target base station of a mobile communication network. The serving base station provides at least a first slice of a first slice type, and the candidate target base station provides at least a second slice of a second slice type. The user equipment is registered to the first slice of the serving base station. The network entity includes a processor configured to control, in response to a handover trigger, the handover of the user equipment on the basis of a requested slice type and the second slice type provided by the candidate target base station.
A network entity configured to control a handover of a user equipment from a serving base station to a candidate target base station of a mobile communication network, the serving base station configured to provide at least a first slice of a first slice type, and the candidate target base station configured to provide at least a second slice of a second slice type, the user equipment being registered to the first slice of the serving base station, the network entity comprising:
A method for controlling a handover of a user equipment from a serving base station to a candidate target base station of a mobile communication network, the serving base station providing at least a first slice of a first slice type and the candidate target base station providing at least a second slice of a second slice type, the user equipment being registered to the first slice of the serving base station, the method comprising:
A target base station configured to perform a handover of a user equipment from a serving base station to the target base station of a mobile communication network, the serving base station providing at least a first slice of a first slice type and the target base station providing at least a second slice of a second slice type, the user equipment being originally registered to the first slice of the serving base station, the target base station comprising:
A method of performing a handover of a user equipment from a serving base station to a target base station of a mobile communication network, the serving base station supporting at least a first slice of a first slice type and the target base station supporting at least a second slice of a second slice type, the user equipment being originally registered to the first slice of the serving base station, the method comprising:
Dependencies are inferred from the claim text.
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Transmission or use of information for re-establishing the radio link: of control information between different access points
Hand-off or reselection arrangements: cell handover without a predetermined boundary, e.g. virtual cells
Access point devices: adapted for operation in multiple networks, e.g. multi-mode access points
Wireless communication networks
About 10 years 5 months of term left · ends 24 Mar 2037 (estimated)
In general, embodiments of the present invention relate to the field of mobile communications. More specifically, embodiments of the present invention relate to communication devices and methods for slice-compliant handover control in a mobile communication network.
Network slicing is introduced in the 5th Generation (5G) mobile technology to satisfy various requirements of multiple vertical industries assuming a shared network infrastructure. Network services can be customized based on the requirements of different use cases, increasing the network operation efficiency. Network slicing is an end-to-end concept according to the current definition being discussed in 3GPP TR23.501 v0.3.0, wherein the network slice is defined as follows: “The network slice is a complete logical network that comprises of a set of network functions and corresponding resources necessary to provide certain network capabilities and network characteristics. It includes both 5G Radio Access Network (RAN) and 5G Core Network (CN)”.
Due to diverse deployment and dynamic situations (e.g., varying loads, resources) in the 5G Radio Access Network (RAN), some slices may be available only in parts of the mobile network. When an active user equipment (UE) moves, it may go to an area where the active session of a slice cannot be supported. In that case, the UE may need to drop the session in that slice, register to another slice, and resume the session in the new registered slice. Such procedures take a long time and may negatively affect the continuity of services provided to the UE.
Embodiments of the present invention will be described with respect to the following figures, wherein:
FIG. 1 shows a schematic diagram illustrating a mobile communication network including a serving base station, a user equipment, a target base station and a mobility management network entity according to an exemplary embodiment;
FIG. 2 shows a schematic diagram illustrating processing steps of a slice-compliant handover control according to an exemplary embodiment;
In the various figures, identical reference signs will be used for identical or at least functionally equivalent features.
In the following description, reference is made to the accompanying drawings, which form part of the disclosure, and in which are shown, by way of illustration, aspects in which embodiments of the present invention may be implemented. It is understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, as the scope of the present invention is defined by the appended claims.
For instance, it is understood that a disclosure in connection with a described method may also hold true for a corresponding device or system configured to perform the method and vice versa. For example, if a specific method step is described, a corresponding device may include a unit to perform the described method step, even if such unit is not explicitly described or illustrated in the figures. Further, it is understood that the features of the various exemplary aspects described herein may be combined with each other, unless specifically noted otherwise.