Patent application number | Description | Published |
20130244569 | SYSTEMS AND METHODS FOR TRANSPARENT POINT-TO-POINT HANDOVERS OF A MOBILE RELAY - Systems and methods for transparent handovers of mobile relays on high-speed vehicles. In an embodiment, a base station of a wireless communications network transmits identification data to a mobile relay on a high-speed vehicle. The identification data identifies base stations which are configured for transparent handovers. The network also receives data indicative of a scheduled path of the high-speed vehicle, which it uses to select a target base station for communication with the mobile relay. Once the target base station has been selected, the network begins servicing the mobile relay from the second base station, without requiring any measurement values from the mobile relay and without handover signaling. | 09-19-2013 |
20140057634 | HANDOVER MANAGEMENT BASED ON SPEEDS OF WIRELESS COMMUNICATION DEVICES - A mobile wireless communication device notifies communication infrastructure that the mobile wireless communication device is traveling at a speed greater than a threshold speed. In response, the network infrastructure instructs the mobile wireless communication device to use a transition procedure to transition between base stations where the transition procedure is different from a handover procedure used by the mobile wireless communication device to change base stations when the speed of the mobile wireless communication device is less than or equal to the threshold speed. | 02-27-2014 |
20140098734 | TRANSMISSION OF MBSFN SUBFRAME WITHIN A NON-LTE SERVICE AREA - A proxy multicast-broadcast single-frequency network (MBSFN) subframe conforming to a 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) communication specification is transmitted within an MBSFN proxy region that at least partially overlaps with a non-LTE service area of a non-LTE access node providing wireless service to user equipment (UE) devices in the non-LTE service area. The non-LTE access node provides wireless service in accordance with a non-LTE communication specification that is different from the LTE communication specification. The MBSFN proxy region is smaller than, and is within an LTE service area of an LTE access node that provides wireless service to UE devices within the LTE service area in accordance with the LTE communication specification. The proxy MBSFN subframe is transmitted with a timing and frequency such that a UE device receiving service from the LTE access node is capable of receiving the MBSFN subframe. | 04-10-2014 |
20140293858 | NODE DETECTION IN A CELLULAR COMMUNICATION NETWORK - A technique for detecting a neighboring node in a cellular communication network is disclosed. The neighboring node may employ a different radio access technology (RAT) and/or operate at a different frequency than adjacent nodes. The neighboring node transmits cell-specific or user equipment (UE) specific information using one or more Multicast Broadcast Single Frequency Network (MBSFN) subframes. This information can include data and/or control signaling for handover processing. A UE currently being served by another node can monitor the MBSFN subframes and initiate a search for the neighboring node, including inter-frequency measurements, based on the information contained in the MBSFN subframes. This allows UEs located at cell boundaries to become aware of the presence of the neighboring node, and may reduce UE power consumption used in searching for neighboring nodes, particularly those operating at a different carrier frequency or having a different RAT, for example, a wireless local area network (WIAN). | 10-02-2014 |
20140313969 | HANDOVER MANAGEMENT USING A BROADCAST CHANNEL IN A NETWORK HAVING SYNCHRONIZED BASE STATIONS - Handovers of mobile wireless communications device from a source base station to a target base station are managed by transmitting handover information over a shared broadcast channel The handover information required by a mobile wireless communication device for performing a handover may be transmitted within a Multicast Broadcast Multimedia Services (MBfviS) Single Frequency Network (M8SFN) subframe in some circumstances. In one example, the handover information includes Uplink (UL) allocation information, timing advance (TA) information, and a Cell Radio Network Temporary Identifier (C-RNTI), The synchronization between base stations of the MBMS system allows for the elimination of some messaging required in conventional systems for synchronization between the mobile wireless communication service and a target base station. As a result the time for performing a handover is reduced. | 10-23-2014 |
20140314047 | HANDOVER SIGNALING USING AN MBSFN CHANNEL IN A CELLULAR COMMUNICATION SYSTEM - A method of handover signaling in a cellular communication system is disclosed. Prior to a user equipment (UE) undergoing a cell-to-cell transition, a target node transmits handover-related signaling in one or more Multicast Broadcast Single Frequency Network (MBSFN) subframes in order to reduce handover delay. The cellular communication system includes a source node configured to transfer a handover (HO) request to the target node. The (HO) request corresponds to a (UE) presently being served by the source node. The target node is configured to transmit (HO) information to the (UE) over at least one MBSFN subframe in response to the (HO) request. | 10-23-2014 |
20140348052 | INTER-CELL MESSAGING USING MBSFN SUBFRAME - A cellular communication system and method for delivering information, e.g., data and/or control-signaling, to a user equipment (UE) from a neighboring node are disclosed. The cellular communication system includes a first node configured to transmit information in one or more Multicast Broadcast Single Frequency Network (MBSFN) subframes over a radio frequency (RF) (ink between the first node and the UE, while the UE is being served by a second node. The first node can use a network-defined, dedicated portion of the MBSFN subframe for this purpose. Instead of only allowing the second node to send data/signaling messages to the UE, the disclosed techniques allow neighboring nodes to also deliver information to the UE. In particular, the neighboring nodes can transmit data and/or control-signaling to the UE using MBSFN subframes in order to minimize signaling overhead and signaling delay. | 11-27-2014 |
20150282206 | ADVANCE COMMUNICATION RESOURCE NOTIFICATION IN WIRELESS COMMUNICATION SYSTEMS HAVING OVERLAPPING SERVICE AREAS - In a communication system that includes at least a first base station ( | 10-01-2015 |