H04W36/0066

DEVICE FOR WIRELESS COMMUNICATION HANDOVER

A device (110) arranged for wireless communication (130) has a processor (112) to execute a handover sequence to establish a new connection with a further device (120). A handover request message has a protocol indication indicating one or more alternative communication protocols that are supported by the requester and a channel indication indicating at least one channel to be used for a new connection. Upon receiving a first handover request message including an initial protocol indication and an initial channel indication, it is determined whether the new connection is to be established based on the initial protocol indication and via a selected channel based on the initial channel indication. If not so, the processor determines a second protocol indication and a second channel indication indicating at least one further channel to be used for the new connection and sends a second handover request message. Effectively the role of handover requester and handover selector are switched.

CONTROL OF COMMUNICATION USING DUAL-CONNECTIVITY MODE DESCRIPTION
20170318504 · 2017-11-02 ·

The present invention provides an apparatus and method for control of communication using dual-connectivity mode, and the apparatus includes at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry cause the apparatus at least: to receive and process a communication connection reestablishment request from a communication element communicating in a multi-connectivity mode, to decide, in case a communication connection with the communication element is established, whether or not the multi-connectivity mode of the communication element is kept, and to cause a transmission of an indication towards a source communication network control element of the communication element, wherein the indication reflects the decision whether or not the multi-connectivity mode of the communication element is kept. The present invention can improve the dual connectivity performance, and a potential signaling overhead over network interfaces in case of a reconfiguration failure happening can be reduced.

Assisted management of radio resources across dual networks

A user equipment (UE) operating in a communication system comprising a base station and one or more UEs. The UE may be configured to operate on or “camp” on two different networks with one radio. In this exemplary system, the radio may be normally connected to the first network (NW1) and may from time to time be “tuned away” from NW1 to a second network (NW2). The UE may inform NW1 that it has tuned away to another network, e.g., using start and end indicators. This information may prevent NW1 from wasting downlink capacity by unnecessarily allocating downlink resources to the UE during the tune-away. Alternatively, or in addition, this information may prevent NW1 from penalizing the UE, e.g., by reducing its future downlink allocations, since the UE does not respond to NW1 commands during the tune-away.

SYSTEMS AND METHODS FOR SINGLE UPLINK OPERATION (SUO) OVER DUAL CONNECTIVITY NETWORKS

Aspects of the subject disclosure may include, for example, obtaining, for a plurality of dual connectivity mobile communication devices that are in communication range of a first access point that uses a first radio access technology and a second access point that uses a second radio access technology, a plurality of network communication parameters, the first radio access technology being a different radio access technology than the second radio access technology; obtaining a list of a plurality of configurations, each configuration identifying one or more time slots in which the first radio access technology is to be used and one or more other time slots in which the second radio access technology is to be used; selecting, from the list, a respective configuration to apply to each of the plurality of dual connectivity mobile communication devices, a first configuration that is selected being selected based at least in part upon one or more first network communication parameters, a second configuration that is selected being selected based at least in part upon one or more second network communication parameters; facilitating first communications, via the first access point and the second access point, with a first dual connectivity mobile communication device according to the first configuration, which is changeable in real-time during the first communications; and facilitating second communications, via the first access point and the second access point, with a second dual connectivity mobile communication device according to the second configuration, which is changeable in real-time during the second communications. Other embodiments are disclosed.

Radio communication system, radio terminal, radio station, network apparatus, and information collecting method
09801086 · 2017-10-24 · ·

The present invention is a radio communication system that a radio terminal obtains measurement information indicated by a radio network in an idle state, and reports the obtained measurement information in an active state, the radio communication system comprising: a first radio station managing a first cell of a first radio access technology comprises in the first cell; notification means configured to notify the radio terminal of the first configuration information related to obtainment of the measurement information in the first cell; and instruction means configured to instruct the radio terminal to report information related to the measurement information obtained in the first cell after the radio terminal moves to a second cell of a second radio access technology different from the first radio access technology.

Method and system for use of cellular infrastructure to manage small cell access

A method and apparatus at a small cell access point for offloading a wireless device in a macro cell, the method establishing a radio link signaling connection between a base station of the macro cell and the access point; and offloading the wireless device using control signaling over the signaling connection. Further, a method at the wireless device, the method receiving a message identifying a set of candidate small cell access points; selecting at least one access point from amongst the set of candidate small cell access points; reporting the selected at least one access point; receiving a preparatory message preparing the wireless device for a target small cell access point, wherein the target small cell access point is included in the selected at least one access point; and associating the wireless device with the target small cell access point.

Encryption management in carrier aggregation
20170338937 · 2017-11-23 ·

According to an example aspect of the present invention, there is provided an apparatus comprising a memory configured to store information and at least one processing core configured to cause the information to be transmitted toward a user equipment in a downlink direction, partly via a cellular carrier and partly via a non-cellular carrier, the cellular and non-cellular carriers being together in a carrier aggregation, determine a handover of the cellular carrier is likely, wherein the handover does not change an access point providing the non-cellular carrier, and responsive to the determination, disable a ciphering of the part of the information conveyed toward the user equipment via the non-cellular carrier.

Method of Operating a Cellular Network including High Frequency Burst Transmission

The disclosure includes a method for providing a data link between one or more high frequency Transmission Points (TPs) and a User Equipment (UE) in a wireless network, the method including receiving, by the UE, an assignment from a macro cell in the heterogeneous wireless network, wherein the assignment includes a UE specific reference signal set that maps to one or more high frequency TP downlink beams. The UE identifies each of the one or more TP downlink beams by detecting the UE specific reference signals sent in each of the one or more TP downlink beams. The UE measures a quality of each of the one or more TP downlink beams and selects a selected beam from the one or more TP downlink beams based on the quality. The UE establishes the data link to the high frequency TP that transmitted the selected beam using the selected beam.

MIGRATION OF LOCAL GATEWAY FUNCTION IN CELLULAR NETWORKS

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may establish a packet data network (PDN)-connectivity session to a PDN using a cellular radio access technology (RAT) and migrate the PDN-connectivity session from a source access node (AN) to a target AN. Migration may initiate when a decision to perform a handover is made. The target AN may receive a network address and information about a first data radio link established between the UE and source AN. The target AN may establish a second data radio link with the UE based at least in part on the first data radio link information, and may transmit, to the PDN, a path update including the network address and an updated path via the target AN. In some cases, the target AN may forward packets between the UE and the PDN via the second data radio link.

Apparatus and method for configuring radio resources in sleep mode

Methods and apparatuses are provided for configuring resources at a device operating in a sleep mode of a wireless network. The device can use at least some of the resources for other purposes, such as scanning neighbor base stations, acquiring system parameters of the wireless network or other networks, etc., based in part on requirements of a current interval of the sleep mode. In an available interval, a serving base station may attempt to communicate with the device, and thus, the device can keep at least one receiver chain tuned to the serving base station while assigning other resources to communicate with other base stations. In an unavailable interval, the device can assign all resources for communicating with the other base stations.