China Academy of Telecommunications Technology

Datang Mobile Communications Equipment Co., Ltd.

Ming Ai

Li Long Chen

Chunshan Xiong

Hucheng Wang

Shanzhi Chen

Yunjing Hou

Juan Zhang

Dajun Zhang

Haiyang Quan

Fei Qin

Hui Xu

Jing Fu

Jinbo Zhao

Li Chen

Yanfei Zhou

Guosheng Zhao

Zhonglin Chen

Fei He

The present application relates to the field of communications. Disclosed are an access type selection method and device and a storage medium, for solving the problem in the prior art that the location service for a UE cannot be implemented under an access of a 3GPP access type and a non-3GPP access type when AMFs servicing the UE are different. The method comprises: a gateway mobile location center (GMLC) receives a second request sent from a location service (LCS) client; and the GMLC determines an access type for transmitting location information.

Access type selection method and device and storage medium

A location resource coordinating method, a location resource coordinating device, a network node, a UE, and a base station are provided. The location resource coordinating method includes: sending location resource coordination information to a base station before performing location measurement for a serving UE; the location resource coordination information includes identity information of a target cell of the base station, and carries dedicated location resource information configured for the target cell, or the location resource coordination information includes the identity information of a target cell for which the base station activates a location resource, and instructs the base station to activate pre-configured dedicated location resource information; the base station is a base station related to the serving UE.

Network node, user equipment and base station used in a communication system and method for location resource coordination

The present disclosure provides a positioning management method, a positioning management device, an NG-RAN node and a core network node. The positioning management method includes: receiving a positioning request message from the core network node; performing positioning measurement in accordance with the positioning request message, so as to acquire a positioning measurement result; and acquiring position information about a target UE in accordance with the positioning measurement result, and feeding the position information back to the core network node.

Positioning management method and device, NG-RAN node and core network node

A data transmission method, a data transmission apparatus, and a session management device are provided. The data transmission method includes obtaining state information of a UE to which downlink data is destined; selecting, for the UE, a first gateway function entity for transmission of the current downlink data according to the state information of the UE; determining a first data transmission path between the first gateway function entity and a second gateway function entity; and performing the transmission of the downlink data according to the first data transmission path.

Data transmission method and apparatus, and session management device

Embodiments of the present invention relate to the technical field of wireless communications, and in particular to an access control method and device, for use in resolving the problem in the prior art that a user equipment cannot securely access an access points group (APG). According to the embodiments of the present invention, when a user equipment needs to access a network, the user equipment conducts network-layer two-way authentication with a local service center; after the network-layer two-way authentication succeeds, the user equipment conducts access-layer two-way authentication with a corresponding APG so as to enable the user equipment to access the corresponding APG after the access-layer two-way authentication succeeds. The embodiments of the present invention use dual-layer two-way authentication, and enables the user equipment to access a corresponding APG after the dual-layer two-way authentication succeeds, so that the user equipment can securely access the corresponding APG.

Access control method and device

Embodiments of the present invention relate to the technical field of wireless communications, especially a method and device for joining an access node group (APG), for use in resolving the problem in the prior art of an access node being unable to join an APG securely. In the embodiments of the present invention, the access node performs network layer two-way authentication with a local service center after determining to join the APG; and the access node performs network configuration according to configuration information in a network configuration message after receiving the network configuration message sent by the local service center. Therefore, an APG corresponding to a user equipment follows the user equipment, and at the same time, it can be ensured that an access node may join the APG securely.

Method and device for joining access node group

The present application discloses a method and an apparatus for transmitting downlink data, to resolve the issue of erroneous transmission of downlink data of UE when the UE moves from an EPS network to a 5G network. The method comprises: after receiving a request message for updating a session management context of the UE, a session management function entity in embodiments of the present application determining that the UE has moved from a first network to a second network; the session management function entity notifying a user plane function entity to delete a user plane connection of the UE in the first network, and creating a user plane connection of the UE in the second network, such that the user plane function entity transmits downlink data of the UE through the newly created user plane connection.

Method and apparatus for transmitting downlink data

Disclosed are a method and device for controlling set-up of a user side bearer, aiming to solve the problem of an unnecessary signaling overhead caused by the fact that a UE initiates a TAU process after an SGW deletes cached downlink data of the UE when a timer has timed out, and an MME still initiates a set-up process of a user side between the UE and a base station. The method comprises: in a tracking area updating (TAU) process, a mobility management entity (MME) determining that a serving gateway (SGW) needs to send cached downlink data to a terminal UE; and the MME initiating a set-up process of an air interface user side bearer of the UE.

Method and device for controlling set-up of user-plane bearer

A method and network device for confirming ISR activation, optimize the way of activating ISR to solve the defects of prior art that the characteristics of the ISR can not be fully utilized, caused by activating ISR only depending on the EMM combined procedures capability reported by UE. The method comprises: serving general packet radio service (GPRS) support node (SGSN) obtains the subscription data of user equipment (UE); and SGSN activates ISR for the UE when SGSN confirms there is no circuit switch (CS) domain subscription data in the UE's subscription data. Meanwhile, in the present invention other two methods and network devices for confirming ISR activation are also disclosed.

Method and device for confirming idle state signalling reduction (ISR)activation

Disclosed are a data transmission method and device, used to solve the problem of achieving air interface group calling and multicasting when a base station is connected to a network side via an IP interface; the data transmission method of the present invention comprises: the base station determines a group air interface identifier corresponding to an IP broadcast address or an IP multicast target address; the base station assigns the air interface identifier to a user equipment in the group; and the base station schedules and transmits the air interface data via the air interface identifier.

Data transmission method and device

The present invention puts forward a method, a system and an apparatus for selecting a data plane tunnel according to the status of User Equipment (UE). The system comprises a Serving Gateway (SGW) and a Local Gateway (LGW), wherein, the SGW is used for determining the status of the UE and whether a connection is used for Local IP Access (LIPA)/Selected IP Traffic Offload (SIPTO), and instructs the LGW; the LGW is used for setting a tunnel identifier status of the LGW according to the instruction of the SGW, and selecting the data plane tunnel according to the tunnel identifier status. The present invention selects an appropriate data plane tunnel by setting a tunnel identifier in an LGW, and proposes a method for controlling the to setting/clearing of the tunnel identifier, therefore the present invention enjoys comprehensive functions and may make up the deficiency of LIPA/SIPTO architecture in the prior art.

Method, system, and apparatus for selecting data plane tunnel according to the status of user equipment

The present application provides a method and a device for saving network resources, wherein the method particularly includes: determining that a user equipment has the property of small data amount transfer; and during network attachment, allocating no user plane resources to the user equipment which has the property of small data amount transfer. The present application is used to save network resources in an LTE system during M2M communication.

Method and device for saving network resources

Embodiments of the present application relate to the technical field of wireless communications, relating specifically to a method and a device for handling a mobility management context, for use in solving the problem in the prior art of an increase in signaling consumption or network load due to the absence of a defined duration of storage for the mobility management context on a network side. The method comprises: upon a network congestion and rejecting a request from a terminal, a network side device activating a first context timer for the terminal; if the request of the terminal is received and accepted before the first context timer times out, the network side device retaining a mobility management context corresponding to the terminal; if the request of the terminal is not received, or is received but not accepted before the first context timer times out, the network side device deleting the mobility management context corresponding to the terminal. As the duration of storage is defined for the mobility management context on the network side, the signaling consumption and the network load are thereby reduced.

Method and device for handling mobility management context

A method for processing a conflict of communication service procedures and associated devices are provided, which are used to solve the problem that the user equipment (UE) receiving the circuit switching (CS) domain paging message conflicts with initiating the Non-Access Stratum (NAS) procedure by itself. Said method includes that: the UE receives a first paging message from the network side equipment; when the UE judges the first paging message is a CS domain paging message and that the UE itself is about to initiate an original Non-Access Stratum (NAS) procedure, the UE ignores the first paging message and initiates the original NAS procedure.

Method for processing conflict of communication service procedures and associated devices

Disclosed are a scheduling method, device and system based on quality of service. The method includes: for downlink service data, an access point (AP) or a gateway (GW) determines the quality of service (QoS) level of a downlink service packet of a media access control (MAC) layer according to the QoS attribute information of the downlink service packet of the IP layer, and then the AP transmits and schedules radio resources according to the QoS level; for uplink service data, user equipment (UE) determines the QoS level of an uplink service packet of the MAC layer according to the QoS attribute information of the uplink service packet of the IP layer, and reports the QoS level and the other QoS parameters to the AP in the manner of a scheduling request, and the AP completes the transmitting and scheduling of radio resources according to the QoS level, so that the UE transmits the uplink service data to the AP. Aimed at low-cost hot spot and indoor data service access, the present invention provides a novel network architecture and a perfect QoS service mechanism.

Growing community of inventors

Beijing, China

Ming Ai