Patent classifications
H04W36/144
Handover procedures involving sidelink communications
A system, method and apparatus for wireless communications is provided. A user equipment (UE) receives, from a first base station, one or more first messages that include measurement configuration parameters and sidelink parameters associated with a first cell. The UE establishes a sidelink with a second UE based on the sidelink parameters and transmits, to the first base station, a measurement report based on the measurement configuration parameters. Responsive to the measurement report, the UE receives a second message comprising second configuration parameters of a second cell of a second base station. The second configuration parameters do not comprise sidelink parameters. The UE then switches from the first cell of the first base station to the second cell of the second base station. The sidelink of the first cell is handed over to an uplink of the second cell.
WIRELESS COMMUNICATION DEVICE AND COMMUNICATION METHOD
A wireless communication device (10, 10A) includes a first wireless communication unit (111), a second wireless communication unit (112), and a control unit (130). The first wireless communication unit (111) performs communication by connecting to a first communication network that permits connection in a predetermined area. The second wireless communication unit (112) performs communication by connecting to a second communication network different from the first communication network. The control unit (130) predicts communication quality of communication by the first wireless communication unit (111), and determines whether or not to perform communication by the second wireless communication unit (112) based on whether or not the predicted communication quality satisfies a desired communication quality.
HANDOVER OF SATELLITE TERMINAL USING ACCESS GATEWAY FUNCTION (AGF)
Handover is provided between a moving satellite terminal communicating via satellite with a destination node in a terrestrial network. Internet connectivity is provided between the satellite terminal and the destination node via an access gateway function (AGF). Embodiments provide transfer of an active PDU session such as voice or streaming over the internet protocol (IP) between a source AGF and a target AGF. Embodiments enable an AGF to understand when it needs to handover, where it needs to handover to and the protocol messages to achieve the handover.
Communication method and apparatus used in inter-communications system move scenario
A communication method that includes: a terminal transmits data for a first application in a first communications system via a first protocol data unit (PDU) session, where the first PDU session does not support interworking between the first communications system and a second communications system. The terminal moves from the first communications system to the second communications system. After the terminal moves from the second communications system back to the first communications system, the terminal obtains a second PDU session based on at least first transmission information of the first application, and transmits data for the first application in the first communications system via the second PDU session, where the first transmission information includes an identifier of the first application.
Radio access network node, radio terminal, and method therefor
A target RAN node (3) receives, from a core network (5), a message requesting a handover of a radio terminal (1) from a bearer-based network to a bearer-less network. This handover request message includes flow information related to at least one session to be established in the bearer-less network in order to transfer at least one packet flow of the radio terminal (1). The target RAN node (3) transmits, to the core network (5), a handover acknowledge response message containing a transparent container that includes a radio resource configuration information derived from the flow information and is to be forwarded to a source RAN node associated (2) through the core network (5). It is thus, for example, possible to appropriately configuring an AS layer of a target RAT in an inter-RAT handover.
Method for Switching Communication Mode, and Terminal Device and Network Device
A method for switching a communication mode includes: a terminal device receives first indication information sent by a network device, used for instructing the terminal device to switch from a current communication mode to a target communication mode, the current communication mode and the target communication mode are any two of a first communication mode, a second communication mode, and a third communication mode, the first communication mode is a communication mode in which the communication is performed via a Uu interface, the second communication mode is a communication mode in which the communication is performed via a direct-connection interface and controlled by the network device, and the third communication mode is a communication mode in which the communication is performed via a direct-connection interface and controlled by the terminal device; and the terminal device switches a communication mode according to the first indication information.
Reducing stream interruptions during network handover
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving streaming media while switching between different networks is described. In one aspect, a method includes receiving a portion of a streaming media through a data connection on a first communication channel between a mobile device and a first network, and while the portion of the streaming media is being received through the data connection on the first communication channel, detecting that a second communication channel between the mobile device and a second network is available, establishing a data connection on the second communication channel, and receiving data through the second data connection on the second communication channel.
DYNAMIC STEERING OF TRAFFIC ACROSS RADIO ACCESS NETWORKS
Intelligent radio access technology sensing and selection are applied in a dynamic traffic steering network. Network characteristics and network policies are determined. A server sends network characteristics and network policies to user equipment devices. User equipment devices can determine a radio access technology to connect to based on network policies and network characteristics. Further, it can be determined how to select user equipment devices for connection to a radio access network via a radio access technology. User equipment devices can dynamically select a radio access network for connection based on real-time or near real-time radio access network conditions. A self-organizing network can monitor and determine radio access network conditions and the radio access network conditions can be sent to user equipment devices in given cellular broadcast area.
TERMINAL DEVICE, COMMUNICATION SYSTEM, RECORDING MEDIUM
A terminal device includes a first communication unit that performs a wireless communication with a wireless communication tag of an electronic equipment in accordance with a first communication method, a second communication unit that performs the wireless communication in accordance with a second communication method, and a processing unit. The first communication unit receives an identification information of the electronic equipment from the wireless communication tag and the second communication unit receives a beacon signal including the identification information of the electronic equipment and an identifier of an internal access point. The processing unit establishes the wireless communication with the electronic equipment in accordance with the second communication method using the identifier specified based on a collation process between the identification information received by the first communication unit and the identification information included in the beacon signal.
HO performance indicators for tuning HO parameters which are based on radio channel quality before HO
Known HO performance indicators comprise Retainability Rate and HO Successful Rate. The Retainability Rate is defined as the ratio between abnormal connection releases and the total number of releases, and HO Successful Rate is defined as the ratio of successful HOs and the total number of HO attempts. The application proposes two new HO performance indicators LowCqiRateWhenHo (522) and LowUISinrRateWhenHo (524). These two HO performance indicators are based on radio link conditions before a HO for the DL and UL channels respectively. The indicator LowCqiRateWhenHo is defined as the ratio of low, i.e. below a threshold (514). CQI measurement samples of users (502) just before a HO and is as a measure of DL connection quality during HO. The indicator LowUISinrRateWhen Ho is defined as the ratio of low, i.e. below a threshold (516). SINR measurement samples (506) in UL just before a HO and is as a measure of UL connection quality during HO. The inter-HO performance indicators disclosed herein have been successfully used to optimize iRAT HO parameters in a live network. The proposed indicators may be used as an input of Self-Optimizing Network Optimization Manager SON OM algorithms for tuning iRAT HO parameters and intra-HO parameters.