| Patent application number | Description | Published |
|---|
| 20080259876 | DORMANT SESSION MANAGEMENT ASSOCIATED WITH HANDOVER - Systems and methods according to these exemplary embodiments provide for selectively transmitting a pre-registration, re-registration or de-registration initiation message associated with handing off user equipment between different access systems, e.g., a long term evolution (LTE) system and a high rate packet data (HRPD) system, to reduce dormant sessions. The decision to selectively transmit initiation messages is typically performed by a dormant session management function (DSMF). | 10-23-2008 |
| 20080259961 | Data Unit Relay Device and Method of Controlling the Same - A method of controlling a data unit relay device is described, applied to a relay ARQ protocol in accordance with which a source peer sends data units to a destination peer via at least one relay peer. The relay ARQ protocol provides for a first type and second type of receipt information, where the first type is indicative of a correct receipt at a relay peer, and the second type is indicative of a correct receipt at the destination peer. In a data unit relay device that is arranged for deliberately dropping data units of the relay ARQ protocol under one or more predetermined conditions, a procedure is provided for indicating to the source peer and the destination peer that a data unit has been deliberately dropped and for identifying the deliberately dropped data unit, such that the source and destination peer may perform retransmission control for the dropped data unit as if it had been successfully received at the destination peer | 10-23-2008 |
| 20090201947 | Method And Arrangement For Reducing The Amount Of Messages Sent In A Communication Network - The invention relates to a method and an arrangement for reducing the amount of messages sent in a communication network comprising a first communication network entity ( | 08-13-2009 |
| 20100040022 | Random Access Aligned Handover - A method and apparatus for reducing handover interruptions when a mobile device executes handover including a random access procedure is described herein. When handover is desirable, a time offset associated with a random access opportunity is determined. The time offset relates the timing of the next random access opportunity to the frame timing of a target access point. Based on the time offset, a network element, e.g., the mobile device, a serving access point, or a mobility management entity, determines a handover start time. Handover is executed at the determined start time to generally align the beginning of the handover execution with the beginning of the next random access opportunity, and therefore, to reduce handover interruption. | 02-18-2010 |
| 20100110958 | METHOD FOR CONTENT SYNCHRONIZATION WHEN BROADCASTING DATA IN A WIRELESS NETWORK - The present invention relates to an arrangement and method for content synchronization when broadcasting data from an infrastructure node in a communication network. The arrangement comprises a receiver receiving data sequences and a transmitter for transmitting data sequences. Each data sequence has a data size and comprises a sequence number (SN). The arrangement further comprises a processing arrangement configured to add byte numbered sequence numbers to said data sequences passed between layers in a protocol stack for transmission to a transceiver station. | 05-06-2010 |
| 20100142486 | METHOD AND ARRANGEMENT FOR PROCESSING MOBILE STATION HISTORY INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - Methods and apparatus for processing mobile station transaction information at a serving control node in a wireless communication system are disclosed. The serving control node may be a base station, such as an eNodeB in an LTE/SAE wireless communication system. The transaction information, which may include, for example, mobility-related transaction information and traffic-related transaction information for a given mobile station, may be passed between controlling control nodes as the corresponding mobile station is handed over, so that a controlling control node has access to information characterizing the past activities of the mobile station. This information may be used in some embodiments for selecting a target control node for handover or for allocating link resources. | 06-10-2010 |
| 20100177897 | TELECOMMUNICATION SYSTEMS AND ENCRYPTION OF CONTROL MESSAGES IN SUCH SYSTEMS - The present invention relates to a solution for handling encryption of control messages in a wireless telecommunications network. Key generation is based on sequence numbers and the present invention reduces access to core network devices for updating sequence numbers relating to network events by separating sequence number generation to different parts of the network and different types of network events. This is done by providing a solution where sequence number rollover events and handover events are separated from each other in providing input to radio resource control message encryption. Three different counters may be used for different types of events and all three may be used as input to an encryption algorithm. | 07-15-2010 |
| 20100195622 | Method of Maintaining Broadcast Service Continuity - An access node in the boundary area of a single frequency network service area transmits a boundary indication to the mobile terminals in the boundary area to notify the mobile terminals that they are approaching the boundaries of the single frequency network. The mobile terminals receiving the boundary indications may then take steps to maintain continuity of broadcast services when the mobile terminals leave the service area of the single frequency network. | 08-05-2010 |
| 20100197308 | Handover Using Dedicated Resources Reserved For A Limited Time Interval - A method and arrangement for handover wherein the handover resource (the dedicated random access preamble) is reserved by the target radio base station (RBS) for a limited period of time, thus increasing the handover efficiency and thereby allowing random access preambles to be used for initial access to a larger extent. The information about the reserved time interval is sent to the UE in the handover command message by means of a frame number offset between the source RBS and the target RBS. The UE uses the information to calculate when to send its synchronisation message to the target RBS. The frame number offset is calculated either by source RBS or by target RBS. | 08-05-2010 |
| 20100248750 | Paging in a Radio Access Network, Such As An E-UTLRAN - The present invention relates to methods and arrangements of a network node and a UE of a radio access network supporting discontinuous reception, offering a solution that is based on the idea to use more than one sub frame for transmitting paging messages when needed. An indicator in a sub frame with paging messages indicates to the receiving UE if the subsequent sub frame should be read as well. | 09-30-2010 |
| 20100265884 | CIRCUIT-SWITCHED SERVICES OVER SAE/LTE NETWORKS - A method and apparatus for providing both Mobile Terminated, MT, and Mobile Originated, MO, circuit switched (CS) services such as Short Message Service, SMS, services in networks utilizing CS Fallback and CSoLTE-I architectures. An extended SGs interface referred to as SGs+ is implemented between a Mobility Management Entity, MME, in an SAE core network and a Mobile Switching Center Server, MSC-S. The SGs+ interface supports transmission of upper layer CS packet data units while utilizing either connectionless or connection-oriented Signaling Connection Control Part, SCCP, operation. The non access stratum, NAS, signaling support between the User Equipment, UE, and the MME is extended to provide support for both MT SMS and MO SMS service. | 10-21-2010 |
| 20100265912 | Method and Apparatus for Secure Handover in a Communication Network - In at least one embodiment taught herein, the point in a packet transmission sequence space at which hyper frame numbers are incremented is changed at least temporarily as part of handover processing, where a mobile station ( | 10-21-2010 |
| 20100316223 | Method and Arrangement in a Telecommunication System - A security key, K_eNB, for protecting RRC/UP traffic between a User Equipment, UE, and a serving eNodeB is established by a method and an arrangement in a Mobility Management Entity, MME, and in said UE, of an Evolved Packet System, EPS. The MME and the UE derives the security key, K_eNB, from at least an NAS uplink sequence number, NAS_U_SEQ, sent from the UE to the MME, and from an Access Security Management Entity-key, K_ASME, shared between the MME and the UE. | 12-16-2010 |
| 20100330959 | Method for Updating UE Capability Information in a Mobile Telecommunications Network - The present invention relates to methods and arrangements for handling UE capability information a mobile telecommunications network wherein an eNodeB ( | 12-30-2010 |
| 20110032858 | Technique for controlling content distributions in point-to-multipoint enabled network environments - The invention relates to a technique for controlling a content distribution in a point-to-multipoint (“PTM”)-enabled network environment ( | 02-10-2011 |
| 20110044279 | Self-Backhauling in LTE - A method implemented in an anchor base station configured performing a proxy operation at an anchor base station in which the anchor base station acts as a proxy between a second S-GW or an MME node and a self-backhauled base station. The method includes receiving a data packet destined for the user equipment and mapping the received data packet from an incoming General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel to an outgoing GTP tunnel. The method also includes receiving a control message and modifying elements of the control message while copying other elements in the control message and forwarding the control message between the self-backhauled base station and the second S-GW or MME node. | 02-24-2011 |
| 20110080825 | Method and Apparatus for Radio Link Failure Recovery in a Telecommunication System - The teachings presented herein enable a user terminal to perform a fast recovery from a radio link failure. In one aspect, the improvement in recovery time is achieved by commanding or otherwise causing the user terminal to perform radio link failure (RLF) recovery at a cell that is known to possess the user context, while considering that this cell should yield good radio conditions (if not the best) to the user terminal. A cell may be predefined for use by the user terminal in recovering its radio connection. Based on providing signal strength thresholds to the user terminal, for use in determining whether to use a predefined cell for reconnecting to the network, the user terminal attempts RLF recovery first in the predefined cell. By providing user context to the predefined cell in advance of a recovery attempt by the user terminal, the time for recovery is lessened. Note that the user terminal also may infer which cells are preferred. | 04-07-2011 |
| 20110080867 | Method and an Arrangement for Legacy Fallback Between Communication Network Systems - A mechanism is provided by a method and an arrangement for performing Circuit Switched fallback from a packet switched domain to a circuit switched domain, in order to speed up the time it takes for a User Equipment to access an 1×RTT system before initiating services. Thus, the teachings herein provide a method of Circuit Switched fallback (i.e. for handling Circuit Switched Services) for a User Equipment residing in a Packet Switched domain, comprising of the eNB, located within the packet switched domain, transmitting an indication that Circuit Switched Services are supported to a User Equipment and registering to a Circuit Switched domain by signalling Circuit Switched Registration information, via the eNB, enabling the User Equipment to register to a Circuit | 04-07-2011 |
| 20110081856 | Methods and Arrangements for Frequency Selective Repetition - Methods and apparatuses for enabling frequency selective repetition of signals in a telecommunication system in which aggregation of component carriers is applied. Information signals are received ( | 04-07-2011 |
| 20110105153 | AVOIDING EXCESSIVE SIGNALING DURING WIRELESS TERMINAL TOGGLING - A core network node ( | 05-05-2011 |
| 20110110228 | Method and Apparatus for Congestion Control for Inter-Working Communication Networks - A method for allowing distribution of congestion-related information between a cellular communication system supporting circuit-switched services and a cellular communication system supporting packet-switched services. A message destined for the packet-switched communication system is identified at the circuit-switched communication system, and congestion-related information, indicating the present congestion status of the circuit-switched communication network is included into the message. The message is then forwarded to a network node of the packet-switched communication system, where either a user equipment or the network node of the first cellular communication system can control Circuit-switched Fallback (CSFB) attempts towards the second communication system on the basis of the congestion-related information prior to having to initiate any access signaling associated with the CSFB attempts. | 05-12-2011 |
| 20110158181 | Mechanism To Uniquely Identify And Unify A User's Set Of Packet Bearer Contexts In A Mobile Telecommunications - A traffic plane entity (e.g., user plane entity (UPE), serving gateway (S-GW)) and method are described herein for allocating a unique identifier (e.g., UPE/S-GW UE-Context-Id) which identifies and unifies a set of bearers within a UE context that is associated with a given UE. In operation, the traffic plane entity can then send the allocated unique identifier to another entity (e.g., mobility management entity (MME)) which at a subsequent time re-sends the unique identifier back to the traffic plane entity along with a request to have the traffic plane entity perform a specific operation or procedure on the bearers associated with the UE context of the given UE. Upon receiving the request, the traffic plane entity uses the unique identifier to perform the requested operation or procedure simultaneously on all of the bearers associated with the UE context of the given UE. | 06-30-2011 |
