System and method for IP session continuity in device-to-device communication system

    公开(公告)号:US10320915B2

    公开(公告)日:2019-06-11

    申请号:US14277408

    申请日:2014-05-14

    Abstract: A method for performing, by a User Equipment (UE), Device-to-Device (D2D) communication using a wireless communication network is provided. The method includes performing D2D communication via a direct communication path using an allocated Internet Protocol (IP) address, establishing a first Evolved Packet System (EPS) bearer supporting D2D communication via the wireless communication network, to a Packet Data Network (PDN) Gateway (P-GW), determining to switch from the direct communication path to D2D communication via the wireless communication network, and communicating an IP packet through the first EPS bearer based on the determination. An IP packet transmitted through the first EPS bearer may not be transmitted to a packet data network, or an IP packet received through the first EPS bearer is not received from the packet data network.

    Method and device for selecting source IP address

    公开(公告)号:US10187349B2

    公开(公告)日:2019-01-22

    申请号:US15029146

    申请日:2014-10-13

    Abstract: The present invention relates to a method and device for setting a selective source IP address. The method for setting a source IP address of a terminal comprises the steps of: receiving an allocation of a plurality of IP addresses from at least one network node; acquiring information on the property of at least one IP address among the plurality of IP addresses; and selecting the source IP address for a flow of the terminal from the plurality of IP addresses on the basis of attribute information of at least one IP address, wherein the attribute information of the IP address can include information on a flow for recommending the use of a corresponding IP address and/or information on a flow for prohibiting the use of the corresponding IP address.

    Method and apparatus for traffic safety

    公开(公告)号:US10163342B2

    公开(公告)日:2018-12-25

    申请号:US14966658

    申请日:2015-12-11

    Abstract: A method and apparatus for traffic safety are provided using vehicle driving-related information obtained on the basis of a transmission/reception beam pair of a road side unit (RSU) and a vehicle on-board unit (OBU), thereby reducing a probability that vehicle collisions occur where visual fields may be obscured. The method includes setting a path from a current location of the electronic device to a destination, and transmitting a message indicating an emergency situation to other devices located on the path while moving to the destination. The method further includes determining a transmission/reception beam pair of the electronic device and a road apparatus, using a reference signal received from the road apparatus, transmitting a signal including information for the transmission/reception beam pair to the road apparatus, and receiving, from the road apparatus, a message warning that the electronic device and another neighboring electronic device are approaching each other.

    Method and apparatus for assigning IP address in mobile communication network
    26.
    发明授权
    Method and apparatus for assigning IP address in mobile communication network 有权
    在移动通信网络中分配IP地址的方法和装置

    公开(公告)号:US09338702B2

    公开(公告)日:2016-05-10

    申请号:US14268897

    申请日:2014-05-02

    Abstract: When a Mobile Node (MN) is assigned IP addresses, the number of which is greater than or equal to the preset number of IP addresses that the MN is capable of being assigned with, the MN identifies information on the pre-emption vulnerability of each session associated with an IP address, and releases an IP address which enables a disconnection of a session. When there are multiple IP addresses associated with the pre-emptable sessions, a consideration is given to multiple conditions related to which IP address is to be selected, one IP address is selected, and the relevant IP address is released. When any IP address cannot be released, a new session is associated with an IP address which can give the smallest overhead to the MN and the network among the existing IP addresses, so that an IP address can be efficiently assigned.

    Abstract translation: 当移动节点(MN)被分配IP地址时,其数量大于或等于MN能够被分配的IP地址的预设数量,MN识别关于每个 会话与IP地址相关联,并释放一个使会话断开的IP地址。 当存在与可预占会话相关联的多个IP地址时,会考虑与要选择哪个IP地址相关的多个条件,选择一个IP地址,并释放相关IP地址。 当任何IP地址不能被释放时,新的会话与IP地址相关联,这可以给现有IP地址中的MN和网络提供最小的开销,从而可以有效地分配IP地址。

    Method and apparatus for performing TCP communication in a wireless communication system
    27.
    发明授权
    Method and apparatus for performing TCP communication in a wireless communication system 有权
    在无线通信系统中执行TCP通信的方法和装置

    公开(公告)号:US09282586B2

    公开(公告)日:2016-03-08

    申请号:US14174184

    申请日:2014-02-06

    Abstract: A method and an apparatus for performing Transmission Control Protocol (TCP) communication at a network node in a wireless communication system are provided. The method includes receiving, by the network node that connects between a Mobile Station (MS) and a data network, a TCP KeepAlive packet for maintaining a TCP connection established between a correspondent node and the MS through the data network from the correspondent node, transmitting, by the network node, when it is determined that the MS is in an idle mode upon receiving the TCP KeepAlive packet, an acknowledgement packet in response to the TCP KeepAlive packet to the correspondent node, and transmitting, by the network node, indication information indicating the reception of the TCP KeepAlive packet to the MS.

    Abstract translation: 提供了一种用于在无线通信系统中的网络节点处执行传输控制协议(TCP)通信的方法和装置。 该方法包括:通过连接移动站(MS)和数据网络的网络节点接收通过来自对端节点的数据网络维持通信节点与MS之间建立的TCP连接的TCP KeepAlive分组,发送 所述网络节点在接收到所述TCP KeepAlive分组时确定所述MS处于空闲模式的响应于所述对应节点的所述TCP KeepAlive分组的确认分组,并且由所述网络节点发送指示信息 指示接收到TCP KeepAlive数据包到MS。

    APPARATUS AND METHOD FOR SWITCHING BETWEEN DEFAULT PATH AND DIRECT PATH IN WIRELESS COMMUNICATION SYSTEM
    29.
    发明申请
    APPARATUS AND METHOD FOR SWITCHING BETWEEN DEFAULT PATH AND DIRECT PATH IN WIRELESS COMMUNICATION SYSTEM 有权
    用于无线通信系统中的默认路径和直接路径之间切换的装置和方法

    公开(公告)号:US20150009915A1

    公开(公告)日:2015-01-08

    申请号:US14322873

    申请日:2014-07-02

    CPC classification number: H04W76/14 H04W36/00

    Abstract: A method for controlling a path between terminals in a wireless communication system includes measuring a channel quality of a direct path with the another terminal when receiving a request for measuring the channel quality of the direct path from a higher entity, transmitting a first message comprising a result of the measuring the channel quality to the higher entity, and, when receiving a second message to instruct to switch to the direct path from the higher entity, setting the direct path with the another terminal. another embodiments including a terminal and a network entity are also disclosed.

    Abstract translation: 一种用于控制无线通信系统中的终端之间的路径的方法包括当从另一终端接收到从较高实体测量直接路径的信道质量的请求时,测量与另一终端的直接路径的信道质量,发送包括 当向较高实体测量信道质量的结果,并且当接收到指示从更高实体切换到直接路径的第二消息时,设置与另一终端的直接路径。 还公开了包括终端和网络实体的另一实施例。

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