A method for localizing a voice call is disclosed, comprising: receiving an originating leg setup message for an originating leg bearer from the first base station for a first user equipment (UE); creating a first call correlation identifier and storing the first call correlation identifier in association with the first UE; extracting a second call correlation identifier from a terminating leg setup message for a terminating leg bearer received from the core network; determining a real time protocol (RTP) localization status for the originating leg bearer and the terminating leg bearer based on matching the second call correlation identifier of the terminating leg against the stored first call correlation identifier of the originating leg; and sending transport layer assignment messages to the first base station to redirect RTP packets from the first UE to the second UE via the terminating leg bearer without the RTP packets transiting the core network.

Methods and apparatus for managing capacity in a Citizens Broadband Radio Service (CBRS) network. An exemplary method embodiment includes operating a Citizens Broadband Radio Service Device (CBSD) of a cell to perform the steps of: receiving a power down message; decreasing, in response to the power down message, UE inactivity timer length for one or more UEs from a first length to a second length; and continuing to transmit packets to UEs at an edge of the cell. An exemplary system embodiment includes: a CBSD of a cell that comprises: a network receiver that receives a power down message; a first processor that controls the first CBSD to decrease, in response to the power down message, UE inactivity timer length for one or more UEs from a first length to a second length; and a wireless transmitter that continues to transmit packets to UEs at an edge of the cell.

This application discloses a communication method. When determining that a network used to provide a service does not meet a transmission requirement of service data, a terminal device requests, from a PCF, an SMF, or an NWADF, to analyze a reason why the network does not meet the transmission requirement of the service data. The PCF, the SMF, or the NWADF obtains information used to recover a service, and sends the information to a device that performs a service recovery operation, for example, the terminal device or an access network device. The information used to recover the service is used to enable the network to meet the transmission requirement of the service data.

Methods, systems, and devices for wireless communications are described. In a wireless communications system, a user equipment (UE) may determine a preference of the UE for a termination point between a core network and a radio access network (RAN), the core network and the RAN supporting communications for the UE via at least one or a first cell and a second cell each associated with a multi-connectivity mode of the UE. The UE may transmit, to a base station, an indication of the preference of the UE for the termination point. In some cases, the base station may determine the termination point based on receiving the indication of the preference of the UE, and the base station may transmit a message indicating a configuration for the multi-connectivity mode to the UE, the configuration indicating the determined termination point.

A method in a wireless terminal operating in a 3GPP wireless communications network for controlling using MPTCP with a WLAN network, The method comprises receiving from the 3GPP wireless communications network system information comprising a condition for MPTCP with a WLAN network, the condition being associated with mobility characteristics of the wireless terminal. The method further comprises determining a parameter indicative of mobility characteristics of the wireless terminal and disabling MPTCP with a WLAN network if the parameter indicative of mobility characteristics indicates that mobility of the wireless terminal is at or above a value defined in the condition.

In an embodiment, there is provided a method for handover enhancement for User Equipment UE application layer traffic carried over a mobile network, said method comprising at least one step based on informing said UE of a traffic path change in said mobile network due to said handover, requiring action at application layer level.

Systems and methods for managing data usage of a cellular modem during DoS/DDoS attacks are provided. According to one embodiment, a network security device of a private network detects a DoS attack in network traffic going through the network security device and determines whether the DoS attack is being transmitted through a cellular modem of a cellular data network. The network security device reduces data usage of the cellular modem when the DoS attack is detected and the DoS attack being is transmitted through the cellular modem.

A method for determining relocation process and a method for determining handover process are proposed in the present invention. Wherein the method for determining relocation process includes: informing, by a home base station (HNB) gateway (GW) or an operation, administration and maintenance (OAM) device, the HNB of information of whether the HNB GW supports an optimized relocation process; determining, by the HNB, the relocation process to be implemented for the user equipment (UE) according to the information of whether the HNB GW supports the optimized relocation process. The methods according to the present invention may reduce the failure probability of the relocation/handover and improve the relocation/handover efficiency.

A system that determines to modify transmission power of a first small cell: determines an effect of modifying transmission power of the first small cell on a user equipment that is served by the first small cell; and controls modifying the transmission power of the first small cell based on the determination to modify the transmission power and the determined effect of modifying the transmission power on the user equipment that is served by the first small cell.

Antenna nodes are controlled to maintain a respective radio cell, each cell having one and the same physical cell identity. The antenna nodes are further controlled to maintain the respective radio cell in a single direction substantially along a path such that each wireless communication device, during movement in a movement direction along the path, can connect either to consecutive antenna nodes towards which the wireless communication device is moving or connect to consecutive antenna nodes away from which the wireless communication device is moving.