Communication method and device
A communication method and a technology for controlling information, applied in the field of communication, capable of solving problems such as failure to establish a session connection, failure to consider the selection of an N9 interface, and failure to consider whether there is an N9 interface, etc., so as to improve reliability and efficiency and reduce signaling waste.
Active Publication Date: 2020-12-11
HUAWEI TECH CO LTD
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Problems solved by technology
[0002] In the existing fifth generation (5rd generation, 5G) mobile communication system, the session management function (session management function, SMF) network element does not consider the selection process when selecting the user plane function (user plane function, UPF) network element. Whether there is an N9 interface between the UPF network elements, or the access and mobility management function (access and mobility management function, AMF) network element does not consider the UPF controlled by the selected SMF network element in the process of selecting the SMF network element Whether there is an N9 interface between the network elements, resulting in a failure to establish a session connection between the radio access network (RAN) accessed by the terminal device and the data network (DN) to be accessed by the terminal device
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[0097] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Among them, in the description of this application, unless otherwise specified, " / " indicates that the objects associated with each other are an "or" relationship, for example, A / B can indicate A or B; in this application, "and / or "It is just an association relationship describing associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone. , B can be singular or plural. And, in the description of the present application, unless otherwise specified, "plurality" means two or more than two. "At least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combinati...
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The invention provides a communication method and device. The scheme comprises the following steps: a session management network element acquires first control information and second control information; then, the session management network element determines that a first interface exists between the first candidate intermediate user plane network element and the first candidate anchor point userplane network element according to the first control information and the second control information, and selects the first candidate intermediate user plane network element and the first candidate anchor point user plane network element as target user plane network elements, wherein the first control information comprises first interface information of at least one candidate intermediate user plane network element, the second control information comprises first interface information of at least one candidate anchor point user plane network element, and the first candidate intermediate user plane network element is a user plane network element in the at least one candidate intermediate user plane network element; wherein the first candidate anchor point user plane network element is a userplane network element in the at least one candidate anchor point user plane network element. The method is suitable for a selection process of a user plane network element or a session management network element.
Description
technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method and device. Background technique [0002] In the existing fifth generation (5rd generation, 5G) mobile communication system, the session management function (session management function, SMF) network element does not consider the selection process of the user plane function (user plane function, UPF) network element. Whether there is an N9 interface between the UPF network elements, or the access and mobility management function (AMF) network element does not consider the UPF controlled by the selected SMF network element in the process of selecting the SMF network element Whether there is an N9 interface between the network elements, so that the session connection establishment between the radio access network (radio access network, RAN) accessed by the terminal device and the data network (data network, DN) to be accessed by the termin...
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Login to View More IPC IPC(8): H04W36/00
CPCH04W36/0011H04W36/0055H04W36/00
Inventor 宗在峰
Owner HUAWEI TECH CO LTD