Patent application number | Description | Published |
20090207820 | TRANSMISSION OF DATA PACKETS IN A WIRELESS COMMUNICATION NETWORK - The invention relates to a method for retransmitting data packets in a network. Further, the invention relates to an adapted system for performing the method. To improve the robustness in the transmission of an acknowledgment message by a mobile terminal to the network, while minimizing a signaling overhead, the invention provides mechanisms that optimize the retransmission of data packets and manage acknowledgement messages. The mechanisms disclosed are particular applicable to heterogeneous radio access networks. | 08-20-2009 |
20100120429 | Using Mobility Statistics to Enhance Telecommunications Handover - A method of operating a communications network ( | 05-13-2010 |
20100184437 | Radio Resource Management Based on Parameters Indicating Imbalance between Uplink and Downlink - The present invention relates to methods and arrangements for radio base stations of a wireless communication network, enabling each radio base station to transmit parameters indicating imbalance between UL and DL to adjacent radio base stations, when it is triggered to do so. The adjacent radio base stations can then use the parameters for radio resource management decisions such as HO decisions, whenever needed. | 07-22-2010 |
20100298001 | Speed-Dependent Adaptation of Mobility Parameters with Dual Speed Measurement - Mobility parameters, such as those used in handoff decisions, are based on the speed of User Equipment (UE) ( | 11-25-2010 |
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 |
20110103347 | Adaptation of Handover Command Size In A Mobile Telecommunication Network - The present invention relates to a method and a base station for determining a handover command based on mobility related parameters such as a handover margin or a time value required to trigger the handover. | 05-05-2011 |
20110207485 | User Equipment, Radio Base Station and Methods Therein - Embodiments herein relate to a method in a user equipment for handling a radio link failure in a radio communications network. The user equipment is served in a first cell controlled by a radio base station. The radio base station is comprised in the radio communications network, The user equipment detects a first indication of a failure of a radio link between the user equipment and the radio base station. The user equipment then transmits a second indication of radio link failure to the radio base station when the first indication is detected. | 08-25-2011 |
20110230200 | Intercell Interference Coordination for Radio Resource Control - A system includes a first device ( | 09-22-2011 |
20110237259 | Method and Arrangement for Supporting Multiple Settings of Mobility Triggers in a Telecommunications System - The present invention relates to a method and an arrangement ( | 09-29-2011 |
20110310852 | Methods And Arrangements For Handover - Methods and arrangements for autonomous handover are provided. In a step, a mobile terminal sends a measurement report to a first network node. In another step, the mobile terminal starts a timer for measuring a wait period. In a further step, the mobile terminal waits until the wait period has expired. In still another step, the mobile terminal measures a signal used for mobility evaluations from the first radio network node. In yet another step, the mobile terminal performs random access to the second radio network node, if appropriate. Furthermore, the first radio network node sends information about random access channel (RACH) characteristics. Moreover, the first radio network node may send the wait period to the mobile terminal. In another step, the first radio network node sends the terminal context to neighbouring radio network nodes. | 12-22-2011 |
20120083262 | Radio Base Station and Method Therein - Embodiments herein relate to a method in a radio base station for enabling a user equipment to establish a connection in a radio communications network The user equipment is served in a first cell controlled by the radio base station. The radio base station is comprised in the radio communications network. The radio base station detects a failure of a radio link between the user equipment and the radio base station. The radio base station then forwards a user equipment context of the user equipment to a circuitry controlling a second cell when the failure is detected. The user equipment context enables the circuitry controlling the second cell to serve the user equipment and thereby enables the user equipment to establish the connection in the radio communications network. | 04-05-2012 |
20120094670 | Method and Arrangement in Wireless Communications Network - A method in a wireless terminal ( | 04-19-2012 |
20120108252 | Methods and Arrangements for Mobility Management - The present invention relates to methods and devices for mobility management UE in a cellular communications system. A user equipment maintains ( | 05-03-2012 |
20120157108 | FRACTIONAL FREQUENCY REUSE IN HETEROGENEOUS NETWORKS - A base station node (BS) of a heterogeneous radio access network comprises a terminal locator ( | 06-21-2012 |
20120165034 | DOWNLINK CONTROL FOR WIRELESS HETEROGENEOUS TELECOMMUNICATIONS - A heterogeneous radio access network ( | 06-28-2012 |
20120188884 | METHOD AND A NETWORK NODE FOR DETERMINING AN OFFSET FOR SELECTION OF A CELL OF A FIRST RADIO NETWORK NODE - A method and network node ( | 07-26-2012 |
20120202542 | Method and Apparatus for Reducing Intercell Interference - In one aspect, the present invention provides methods ( | 08-09-2012 |
20120282864 | Methods and Apparatus for Neighbor Cell Range Extension - A user equipment (UE) located in an extended-range area of a neighbor base station cell in a communication network, such as a low-power cell in a heterogeneous network, can inform its serving base station, such as a macro cell overlying the low-power cell, of the UE's capability of canceling interference from other cells' transmissions. That capability information enables the serving cell to decide based on more information whether range extension of the neighbor cell is beneficial for a number of UEs, and can result in more efficient radio resource utilization. | 11-08-2012 |
20120289233 | Method and Arrangement for Supporting Handover of a Mobile Terminal in Certain Scenarios - Method and arrangement in a mobile terminal in a wireless communication system, for supporting a handover from a serving cell to a target cell. The method comprises determining | 11-15-2012 |
20130005344 | USER EQUIPMENT, RADIO BASE STATION AND METHODS THEREIN FOR DETERMINING MOBILITY TRIGGER - A method in a user equipment for enabling a cell change of a connection of the user equipment from a first cell serving the user equipment to a second cell in a radio communications network includes obtaining a first cell size of the first cell and obtaining a second cell size of the second cell. The method also includes determining a mobility trigger to use based on at least the first cell size and/or the second cell size and determining whether a cell change is to be performed based on the mobility trigger. | 01-03-2013 |
20130035064 | Methods Of Modifying Communication Network Access And Related Network Nodes, And Wireless Terminals - A method may be provided in a wireless terminal to modify access to a Radio Access Network. The method may include providing a barring rate at the wireless terminal and providing a barring rate modifier at the wireless terminal. A modified barring rate may be provided at the wireless terminal responsive to the barring rate and the barring rate modifier with the modified barring rate and the barring rate being different. A random number may be provided at the wireless terminal responsive to attempting to access the Radio Access Network, and access of the wireless terminal to the Radio Access Network may be blocked responsive to the random number failing to satisfy a threshold of the modified barring rate. Related wireless terminals, network nodes, and network operations are also discussed. | 02-07-2013 |
20130035101 | Handover in Case of a Radio Link Failure - The present invention relates to methods and arrangements in a UE and a RBSin a wireless communications system, enabling an efficient handover of the user equipment. The method comprises transmitting ( | 02-07-2013 |
20130059587 | Storing of Neighbour Cell Information for Rapid Recovery in Case of Handover Failure - This disclosure teaches a method and apparatus for radio link failure recovery by a User Equipment (UE). The example UE includes one or more controllers that are configured to store cell access information for a target cell that is the target for an impending handover from a serving cell, and for a backup cell that is selected by the UE from among a set of neighbouring cells that includes the target cell. Advantageously, in case the handover to the target cell fails, the one or more controllers are configured to retrieve the cell access information stored for the backup cell and to use that information for re-establishing connection in the backup cell. The UE selects the backup cell, for example, as the neighbouring cell other than the target cell having the strongest signal conditions with respect to the UE. | 03-07-2013 |
20130077599 | SYSTEMS AND METHODS FOR CONTROLLING CELL SELECTION IN A HETEROGENEOUS CELLULAR NETWORK BASED ON PRIMARY DIRECTION OF TRAFFIC FLOW - Systems and methods are disclosed for controlling cell selection between a high power base station and a neighboring low power base station in a cellular network. In one embodiment, a primary direction of traffic flow for a user equipment located within a transition zone between a high power base station cell of the high power base station and a low power base station cell of the low power base station is determined to be either an uplink direction or a downlink direction. Cell selection for the user equipment is then controlled based on the primary direction of traffic flow for the user equipment such that selection of the high power base station cell is favored if the primary direction of traffic flow is the downlink direction and selection of the low power base station cell is favored if the primary direction of traffic flow is the uplink direction. | 03-28-2013 |
20130084854 | Methods and Arrangements for Direct Mode Communication - A method in a first user equipment (UE | 04-04-2013 |
20130094387 | Timeslot Allocation Method in a Wireless TDD Network - Method and arrangement in a first base station for scheduling in a TDD wireless network, which wireless network comprises the first base station serving a user equipment, and a second base station. The method comprises detecting that the second base station uses a different TDD configuration, instructing the user equipment to provide a signal strength measurement report based on a signal received from the second base station, receiving the measurement report, and allocating resources to the user equipment based on the received measurement report. Thereby is allocation of resources in TTIs not having the same uplink-downlink direction in the first base station and the second base station respectively, is avoided for the user equipment, when the received signal strength measurement report indicates that such allocation is appropriate. Also, a method and arrangement in a user equipment for scheduling in a TDD wireless network is described. | 04-18-2013 |
20130094595 | Method for Channel Estimation Using Cell Specific Reference Symbols - The invention relates to a method in a user equipment for channel estimation, the user equipment communicating within a wireless communication system comprising at least two cells arranged in a layered structure, the at least two cells using at least partly overlapping bandwidth. The user equipment communicates with a base station of an underlaid cell of the layered structure, and the Select resource method comprises the steps of: selecting, from elements carrying CRSs among resource blocks scheduled for the user equipment in the underlaid cell, resource elements carrying cell specific reference symbols, wherein the resource blocks are within bandwidth used by the underlaid cell; and performing the channel estimation by utilizing the selected resource elements carrying cell specific selected resource reference symbols. The invention also relates elements carrying CRSs to user equipment implementing the method. | 04-18-2013 |
20130142175 | EFFICIENT SPECTRUM UTILIZATION WITH ALMOST BLANK SUBFRAMES - Systems and methods for providing efficient utilization of spectrum in a cellular communication network that applies Almost Blank Subframes (ABSs) are disclosed. In general, the network includes an access node that applies ABSs in the downlink. In one embodiment, the access node identifies UEs for which transmissions are to be scheduled for the uplink using a scheduling scheme that does not require control information for every subframe. The access node then time-aligns scheduling instants of the UEs and subframes in the uplink that correspond to at least some of the ABSs in the downlink. In another embodiment, the access node identifies UEs for which transmissions are to be scheduled for the downlink using a scheduling scheme that does not require control information for every subframe. The access node then time-aligns scheduling instants of the UEs for the downlink and at least a subset of the ABSs in the downlink. | 06-06-2013 |
20130190000 | Fractional Frequency Re-Use and Beamforming in Relay Nodes of a Heterogeneous Network - Methods of operating a base station serving a cell in a heterogeneous network and at least one relay node serving a subcell of the cell, in which a user equipment unit connects to the network via the base station or the relay node, are provided. The methods include receiving uplink access (Uu) signals at the relay node from the user equipment unit in a first frequency range, and transmitting uplink backhaul (Un) signals from the relay node to the base station in a second frequency range that is different from the first frequency range. | 07-25-2013 |
20130203430 | METHODS FOR CELL SELECTION BALANCING, COMPUTER PROGRAMS AND COMPUTER PROGRAM PRODUCTS - The invention relates to a method ( | 08-08-2013 |
20130252621 | DYNAMIC RESOURCE SELECTION TO REDUCE INTERFERENCE THAT RESULTS FROM DIRECT DEVICE TO DEVICE COMMUNICATIONS - Systems and methods are disclosed for selecting resources for direct device to device (D2D) communications in a cellular communication network. In one embodiment, a downlink resource is selected as a resource for a direct D2D communication link between a first wireless device and a second wireless device if a base station serving each of the first and second wireless devices is equipped with an interference cancellation receiver and both the first and second wireless devices are less than a predefined threshold radio distance from their serving base station. An uplink resource is selected as a resource for the direct D2D communication link if the base station serving each of the first and second wireless devices is equipped with an interference cancellation receiver and at least one of the first and second wireless devices is more than the predefined threshold radio distance from its serving base station. | 09-26-2013 |
20130252654 | DYNAMIC RESOURCE SELECTION TO REDUCE INTERFERENCE RESULTING FROM DIRECT DEVICE TO DEVICE COMMUNICATIONS - Systems and methods are disclosed for selecting resources for direct device to device communications in a cellular communication network. Preferably, resources for the direct device to device communications are selected to minimize, or at least substantially reduce, interference that results from the direct device to device communications in the cellular communication network. In one embodiment, a downlink resource of the cellular communication network is selected as a resource for a direct device to device communication link between a first wireless device and a second wireless device if at least one of the first and second wireless devices is less than a predefined threshold radio distance from a closest base station in the cellular communication network. Otherwise, an uplink resource of the cellular communication network is selected as a resource for the direct device to device communication link between the first and second wireless devices. | 09-26-2013 |
20130279474 | HANDOVER FOR VIDEO OR OTHER STREAMING SERVICES - Systems and methods are disclosed for providing optimized handover decisions for mobile devices participating in streaming services. In one embodiment, a serving base station in a cellular communications network obtains a play out buffer size for a streaming service of a mobile device. The serving base station then makes a handover decision based on the play out buffer size for the streaming service of the mobile device. In one embodiment, the streaming service is a downlink streaming service to the mobile device, and the play out buffer size is a size of a downlink play out buffer at the serving base station for the downlink streaming service to the mobile device. In another embodiment, the streaming service is an uplink streaming service from the mobile device, and the play out buffer size is a size of an uplink play out buffer at the mobile device for the uplink streaming service. | 10-24-2013 |
20130294296 | DYNAMIC BAND SELECTION FOR INTERFERENCE MINIMIZATION IN DIRECT DEVICE TO DEVICE COMMUNICATIONS - Systems and methods are disclosed for selecting resources for direct device to device (D2D) communications in a cellular communication network. Preferably, resources for the direct D2D communications are selected to minimize, or at least substantially reduce, interference that results from the direct D2D communications in the cellular communication network. In general, either an uplink resource or a downlink resource of the cellular communication network is selected for a direct D2D communication link between a first wireless device and a second wireless device in order to minimize, or at least substantially reduce, interference caused to a third wireless device that uses the same uplink and downlink resources in the same and/or a neighboring cell of the cellular communication network. | 11-07-2013 |
20130310060 | FRACTIONAL FREQUENCY REUSE IN HETEROGENEOUS NETWORKS - A base station node (BS) of a heterogeneous radio access network comprises a terminal locator ( | 11-21-2013 |
20130331103 | Apparatus and Method for Selecting HO Triggers - The disclosed solution dynamically selects a handover trigger for triggering handover of a mobile terminal in a wireless network from a source base station to a target base station based on one or more Key Performance Indicators (KPIs). Each KPI indicates a quality of wireless services provided by the wireless network responsive to a particular handover trigger. A trigger selection circuit selects one of multiple candidate triggers as the handover trigger based on a comparison between corresponding KPIs for different ones of the candidate triggers. | 12-12-2013 |
20130336142 | Method and Apparatus for Reducing Intercell Interference - In one aspect, the present invention provides methods and apparatuses for detecting that a wireless communication device in a serving cell is experiencing excessive interference variance, detecting a transmission pattern of interfering transmissions giving rise to such variance, and correspondingly adjusting scheduling of the device as a function of the detected transmission pattern, to at least partly avoid the interfering transmissions. An advantageous feature of such operation is that the determination of excessive interference variance and the determination of the transmission pattern associated with that varying interference can be done by a network node, e.g., the device's serving base station, or by the device, without requiring backhaul signaling or other inter-node cooperation in the network. | 12-19-2013 |
20140003273 | Limiting Interference in a Heterogeneous Wireless Communication System | 01-02-2014 |
20140029507 | INTRA CELL INTERFERENCE MITIGATION IN A WIRELESS NETWORK EMPLOYING RELAY NODES - A method and relay node (RN) in a wireless communications network for controlling downlink transmissions to User Equipments (UEs) being served by the RN. An RN transceiver circuit requests each UE to measure and report a Reference Signal Received Power (RSRP) and a UE total downlink interference. An RN receiver circuit receives and forwards the reported RSRP and UE total downlink interference for each UE. An RN processing and control circuit measures an RN total downlink interference; determines which UEs are closely located to the RN based on the reported RSRP of each UE; creates a UE-list with UEs determined to be closely located to the RN and which experience UE total downlink interference similar to the measured RN total downlink interference; determines whether the measured RN total downlink interference exceeds an RN interference threshold; and if so, controls the downlink transmissions to the UEs in the created UE-list. | 01-30-2014 |
20140029524 | Method and Apparatus For Inter-Cell Interference Coordination in a Wireless Communication Network - One aspect of the teachings herein involves the advantageous use of learned statistical information to improve inter-cell interference coordination (ICIC). The network uses historical signal quality measurements collected over time for wireless communication devices operating within its coverage areas to identify those geographical areas where devices generally experience significant levels of patterned interference. In an example case, the network develops a “map” of the geographical areas that are affected by the transmission patterns of neighboring nodes, and it applies the map to ICIC operations, wherein the serving nodes associated with the affected areas incorporate knowledge of the interfering transmission patterns into the ongoing scheduling of users operating in the affected areas. | 01-30-2014 |
20140045500 | Methods for Handover Configuration - The dynamic determination of a handover trigger for triggering handover of a mobile terminal in a wireless network from a source base station to a target base station is based on one or more Key Performance Indicators (KPIs). Each KPI indicates a quality of wireless services provided by the wireless network responsive to a particular handover trigger. If an obtained parameter that indirectly or directly impacts handover performance passes a corresponding performance test, the mobile terminal selects the handover trigger based on the KPIs. If the parameter fails the corresponding performance test, the source base station selects the handover trigger based on the KPIs. | 02-13-2014 |
20140056230 | DYNAMIC SPECTRUM BAND SELECTION FOR D2D COMMUNICATIONS - The present disclosure provides systems and methods for selecting a resource for a direct device-to-device (D2D) communication link between wireless devices in a cellular communication network. In one embodiment, a control node in a cellular communication network selects a resource for a direct D2D communication link between a first wireless device and a second wireless device based on one or more criteria including a service area type of a service area within the cellular communication network in which the first wireless device and the second wireless device are located. The service area type is either homogeneous or heterogeneous. The control node communicates an indicator of the resource selected for the direct D2D communication link to the first wireless device and/or the second wireless device. Thereafter, the first and second wireless devices communicate over the direct D2D communication link using the selected resource. | 02-27-2014 |
20140064103 | Apparatus and Method For Declaring Radio Link Failure (RLF) - According to one aspect, there is provided a method performed by a communication device for declaring RLF. In some embodiments, the method includes: (1) the communication device establishing a connection with a serving base station; (2) the communication device determining whether to relax a condition for declaring RLF; (3) the communication device using a first rule in declaring an RLF in response to determining that the communication device should not relax the condition; and (4) the communication device using a relaxed rule in declaring an RLF in response to determining that the communication device should relax the condition, wherein the relaxed rule is less stringent than the first rule. | 03-06-2014 |
20140066066 | HANDOVER IN HETEROGENEOUS RADIO COMMUNICATION NETWORKS BASED ON SYSTEMATIC IMBALANCE DIFFERENCES - Presented is an apparatus and methods for determining if a determined systematic imbalance difference between a serving base station and one or more candidate base stations exceeds a threshold value and, if so, then using uplink information as part of a handover mechanism. The selective usage of uplink information in the handover mechanism can improve handover performance without unduly adding to complexity and signaling overhead. | 03-06-2014 |
20140066074 | METHOD IN A RADIO NETWORK NODE FOR CONTROLLING HANDOVER DECISION OF A USER EQUIPMENT - A radio network node and method for improved control of handover decisions of a User Equipment (UE) in a wireless communications network. The UE is in a served cell and is moving towards a neighboring cell. The network node obtains neighboring cell characteristics and determines a mobility threshold based on the obtained neighboring cell characteristics. The handover decisions of the UE to the neighboring cell are then controlled based on the determined mobility threshold. | 03-06-2014 |
20140079026 | METHODS IN BASE STATIONS, BASE STATIONS, COMPUTER PROGRAMS AND COMPUTER PROGRAM PRODUCTS - A method in a first base station having a first coverage area at least partly overlapping with a second coverage area of a second base station, the first base station operating within a first transmission power range and the second base station operating within a second transmission power range. The method includes determining radio link quality of a user equipment (UE | 03-20-2014 |
20140087719 | Method and Arrangement Related to Interference Between Systems - Method and arrangement for use in a node in a first system associated with a first frequency band for radio communication, for avoiding or reducing interference in a second frequency band associated with a second system, which second frequency band is adjacent to the first frequency band. The method comprises detecting activity of the second system in the second frequency band and determining characteristics of the second system current activity in the second frequency band. The method further comprises adjusting at least one parameter related to radio communication, based on said characteristics, such that interference to the second frequency band, from radio communication associated with the node, is adapted to the second system activity in said second frequency band. | 03-27-2014 |
20140087721 | Intercell Interference Coordination for Machine to Machine Communications - A method is provided for operating a radio network node of a radio communications network. A wireless device in a cell of a first radio network node may be identified as having at least one transmission-specific property that affects a sensitivity to interference. Data identifying the at least one transmission-specific property corresponding to the wireless device in the cell of the first radio network node is sent from the first radio network node to a second radio network node that includes at least a portion of an overlapping cell relative to the first radio network node. Related methods in radio network nodes and apparatuses are disclosed. | 03-27-2014 |
20140087747 | METHOD AND ARRANGEMENT FOR SUPPORTING RADIO RESOURCE MANAGEMENT - A method and apparatus in a base station serving a first cell in a cellular network, for supporting radio resource management, RRM, in the cellular network. The base station obtains measurements (M) of signals transmitted in the first cell and of signals transmitted in at least one neighbouring cell and determines a cell isolation factor of the first cell, based on the obtained measurements, the cell isolation factor indicating insusceptibility to interference from signals transmitted in the neighbouring cell(s). The determined cell isolation factor is then used to support RRM for terminals in the network, e.g. as a basis for determining whether to employ an RRM scheme or not. Thereby, it is possible to decide to employ the RRM scheme for cells where it is effective and helpful and not in other cells. | 03-27-2014 |
20140094127 | METHODS AND DEVICES FOR ADJUSTING RESOURCE MANAGEMENT PROCEDURES BASED ON MACHINE DEVICE CAPABILITY INFORMATION - Devices and methods for adjusting resource management procedures based on machine device capability information are disclosed. In one aspect, a method for adjusting resource management procedures in a machine device communicating with a node operating in a communication network includes receiving a first message from the machine device, the first message including machine device capability information, processing the received machine device capability information to determine an adjustment to a resource management procedure, and transmitting a second message to the machine device, the second message including the determined resource management procedure adjustment. The first and second messages may be radio resource control (RRC) messages, such as RRC connection request and setup messages. | 04-03-2014 |
20140094165 | Method and Arrangement Related to Interference Between Systems - Methods and arrangements for use in a respective node and mobile terminal in a first system associated with a first frequency band for radio communication, for supporting avoiding or reducing interference in a second frequency band associated with a second system, which second frequency band is adjacent to the first frequency band. The method for use in the node comprises detecting activity of the second system in the second frequency band and adjusting the bandwidth used by the node for communication, based on characteristics of the detected current activity of the second system in the second frequency band, such that interference to the second frequency band, from radio communication associated with the node, is adapted to the second system activity in said second frequency band. The method further comprises providing information of said adjustment to at least one mobile terminal. Further, information of said adjustment could be provided to neighboring nodes. | 04-03-2014 |
20140094204 | Uplink Power Control for Machine Type Communication Devices - An access node is configured to adapt uplink power control procedures based on the device attributes of a wireless device. The device attributes may, for example be the mobility, energy profile, or characteristic traffic pattern of the wireless device. The adaptive uplink power control procedure may be used to minimize or reduce power consumption, to improve resource utilization efficiency, or to reduce interference levels. | 04-03-2014 |
20140099881 | MITIGATION OF INTERFENCE FROM A MOBILE RELAY NODE TO HETEROGENEOUS NETWORKS - Devices, systems and methods for mitigating the interference introduced by mobile relay nodes in a heterogeneous network are described. The techniques described apply fractional frequency reuse and power controlled beamforming to mitigate such interference. | 04-10-2014 |
20140120928 | METHODS CONTROLLING EXTENDED RANGE AREAS IN HETEROGENEOUS NETWORKS AND RELATED NETWORK NODES - A method may provide wireless communications in a network including a first base station and a second base station, with the first base station operating within a coverage area of the second base station. The method may include providing soft-cell communications in an extended range area of the first base station, with the extended range area being outside a primary range area of the first base station. A number of wireless devices in the extended range area connected and/or communicating with the first base station may be tracked. Responsive to the number of wireless devices in the extended range area connected and/or communicating with the first base station exceeding a threshold (Threshold_N), the extended range area over which soft-cell communications are provided may be reduced. | 05-01-2014 |
20140135020 | ADAPTATION OF HANDOVER COMMAND SIZE IN A MOBILE TELECOMMUNICATION NETWORK - The present invention relates to a method and a base station for determining a handover command based on mobility related parameters such as a handover margin or a time value required to trigger the handover. | 05-15-2014 |
20140148174 | HANDOVER ROBUSTNESS IN CELLULAR RADIO COMMUNICATIONS - An indication of the speed of movement of a UE in a radio communications system is received ( | 05-29-2014 |
20140153490 | Device and Method for Controlling Interference - Embodiments herein relate to a method in a transceiver ( | 06-05-2014 |
20140153545 | HANDOVER IN A SOFT CELL NETWORK - Devices and methods for making a determination whether or not to handover a user equipment (UE) from a serving cell to a target cell are disclosed. The decision is based on a comparison that includes both control plane and data plane link quality considerations. The disclosed devices and methods may be applied to handover determinations in heterogeneous networks that implement a soft cell configuration. | 06-05-2014 |
20140160976 | Exchange of Mobility Information in Cellular Radio Communications - A connection request is received from a remote terminal of a radio communications system at a serving node of the radio communications system. Mobility information is requested ( | 06-12-2014 |
20140169500 | SYSTEM AND METHOD FOR COMMUNICATING INFORMATION IN A WIRLESS NETWORK - A method for receiving data transmitted wirelessly includes receiving information indicating a device type associated with a wireless communication device and, based on the device type associated with the wireless communication device, deciding to request information indicating a set of possible data values associated with transmissions from the wireless communication device. The method further includes receiving information indicating the set of possible data values and receiving a data transmission from the wireless communication device that comprises encoded data bits. Additionally, the method includes attempting to decode the data transmission using the set of possible data values. | 06-19-2014 |
20140171061 | NETWORK ACCESS DELAY FOR EAB-CONFIGURED UES AND/OR GROUP-BASED ADDRESSED UES - The access of a user equipment, UE, ( | 06-19-2014 |
20140185465 | METHODS AND DEVICES FOR ADJUSTING RESOURCE MANAGEMENT PROCEDURES BASED ON MACHINE DEVICE CAPABILITY INFORMATION - Devices and methods for adjusting resource management procedures in a User Equipment (UE) machine device communicating with one or more nodes in a communication network. In one embodiment, a method includes determining, during a first time period, the number of handovers, N, for the UE from a serving node to a different node. The method further includes comparing the value, N, to a threshold, wherein if the value, N, is greater than the threshold, mobility pattern information for the UE includes an indication of high mobility, and if the value, N, is less than or equal to the threshold, the mobility pattern information includes an indication of low mobility. The method also includes transmitting machine device capability information, including the indicated mobility pattern information, to be used for determining an adjustment to a resource management procedure for the UE. | 07-03-2014 |
20140187255 | METHODS AND DEVICES FOR REDUCING INTERFERENCE IN HETEROGENEOUS COMMUNICATION NETWORKS BASED ON INTER-CELL INTERFERENCE COORDINATION - Devices and methods for reducing interference in a communication network including a first node and a first node coverage area, a second closed subscriber group (CSG) node located within the first node coverage area, and one or more user equipment (UE) devices located within the first node coverage area are provided. In one embodiment, a method includes receiving link quality measurement information from the one or more UE devices and determining if a link quality value for a UE device is below a predetermined link quality threshold value and is caused by the second CSG node. If both conditions are true, if the UE device is a member of the second CSG node, and if the first UE device does not include interference cancellation capability, the method further includes instructing the second CSG node to mute transmission causing interference for the UE device. | 07-03-2014 |
20140198742 | PRACH Signals with Different Bandwidths - The present disclosure concerns radio communication. More particularly, the present disclosure concerns random access procedures used in communication between user equipments (UEs) and radio network nodes, such as evolved NodeB's. According to one exemplary embodiment disclosed herein, a method in a UE | 07-17-2014 |
20140198772 | SYNCHRONIZATION SIGNAL DESIGN FOR WIRELESS DEVICES IN A LONG RANGE EXTENSION MODE - Systems and methods related to a synchronization signal particularly well suited for wireless devices in an extended coverage area of a cell of a cellular communications network are disclosed. In one embodiment, a base station transmits a synchronization signal including multiple repetitions of a basic synchronization block during a coherence time of a downlink channel over which the synchronization signal is transmitted. The multiple repetitions of the basic synchronization block during the coherence time enable coherent combining during detection of the synchronization signal at wireless devices located in the cellular communications network. This coherent combining enables, for example, wireless devices located in an extended coverage area of a cell served by the base station to synchronize to the cell using a shorter synchronization signal than that which would be required if only non-coherent combining were used. | 07-17-2014 |
20140204847 | NETWORK-ASSISTED D2D COMMUNICATION USING D2D CAPABILITY INFORMATION - Systems and methods related to Device-to-Device (D2D) communication in a cellular communications network are disclosed. In one embodiment, a base station obtains D2D capability information for wireless devices, where the D2D capability information indicates that the wireless devices are physically capable of D2D communication. The base station also receives a D2D request from a first wireless device and, in response, determines that a D2D initialization procedure is to be performed. In response to determining that the D2D initialization is to be performed, the base station transmits a positive D2D decision to the first wireless device that includes information that enables the first wireless device to establish D2D communication with a second wireless device, where the second wireless device is one of the wireless devices that are physically capable of D2D communication. | 07-24-2014 |
20140206322 | NETWORK-ASSISTED UE DETECTION IN DIRECT MODE UE-TO-UE COMMUNICATION - Systems and methods for network-assisted device discovery for device-to-device (D2D) communications are disclosed. In one embodiment, a base station in a cellular communications network receives a D2D request from a first wireless device to establish D2D communication. In response to the D2D request, the base station selects a second wireless device for D2D communication with the first wireless device based on the D2D request and information regarding wireless devices that are available for D2D communication. The base station then transmits a D2D request acknowledgment to the first wireless device that includes information that enables the first wireless device to establish D2D communication with the second wireless device. The base station also effects transmission of a D2D reconfiguration message to the second wireless device, where the D2D reconfiguration message includes information that informs the second wireless device that the first wireless device has requested establishment of D2D communication. | 07-24-2014 |
20140213237 | SYSTEMS AND METHODS FOR DETERMINING A CONFIGURATION FOR A WIRELESS DEVICE - Systems and methods related to reducing a cost of operation and/or manufacture of wireless devices under appropriate conditions are disclosed. In one embodiment, a wireless node in a cellular communication network determines a configuration for a wireless device. In one particular embodiment, the wireless device is a Machine-Type Communication (MTC) device. The configuration includes at least one of a retransmission configuration and an advanced receiver configuration. The wireless device is then configured according to the configuration. In this way, the operation of the wireless device can be more cost efficient, particularly in terms of radio resource and energy efficiency, based on the conditions in which the wireless device is operated. | 07-31-2014 |
20140219192 | DEVICE-ANCHOR BASE STATIONS - Systems and methods are disclosed for providing efficient and reliable communication for wireless devices, e.g., Machine Type Communication devices, in a cellular communications network. In one embodiment, a network node of the cellular communications network identifies candidate device-anchor base stations, where the candidate device-anchor base stations are wireless devices that satisfy one or more predefined criteria for serving as a candidate device-anchor base station. The network node then effects selection of a device-anchor base station for a wireless device from the candidate device-anchor base stations such that communication between a serving base station of the wireless device and the wireless device is via the device-anchor base station. In this manner, communication between the wireless device and the serving base station of the wireless device is assisted by the device-anchor base station. | 08-07-2014 |
20140220970 | DEVICE-ANCHOR BASE STATION SELECTION AND DETECTION - Systems and methods are disclosed for providing efficient and reliable communication for wireless devices, e.g., machine type communication devices, in a cellular communications network. In one embodiment, a node of a cellular communications network is configured to select a device-anchor base station for a wireless device from candidate device-anchor base stations, where the candidate device-anchor base stations are wireless devices that satisfy one or more predefined criteria for serving as a candidate device-anchor base station and establish a connection between the wireless device and the device-anchor base station for the wireless device such that data transmissions between the wireless device and a base station of the cellular communications network are via the device-anchor base station. In this manner, communication between the wireless device and the base station is assisted by the device-anchor base station. | 08-07-2014 |
20140269409 | EXPLICIT SIGNALING OF NUMBER OF RECEIVER ANTENNAS - Systems and methods for explicitly signaling a number of receiver antennas of one node in a cellular communications network to another node in the cellular communications network are disclosed. In one embodiment, a first node in the cellular communications network sends a number of receiver antennas of the first node to a second node in the cellular communications network. In one embodiment, the first node broadcasts the number of receiver antennas of the first node. In another embodiment, the first node unicasts the number of receiver antennas of the first node to the second node. The second node then utilizes the number of receiver antennas of the first node to perform a desired action. | 09-18-2014 |
20140293801 | SYSTEM AND METHOD FOR PROCESSING RECEIVED DATA IN A WIRELESS NETWORK - A method for communicating data within a wireless network includes receiving an indication of a measurement type from a wireless communication device and receiving a first wireless transmission pertaining to a first measurement performed by the wireless communication device. The method also includes, in response to the received transmission, obtaining a value of a second measurement of the measurement type. The second measurement is performed by a sensor associated with the base station. In addition, the method includes determining a value of the first measurement based on the received transmission and a value of a second measurement performed by the sensor associated with the base station. | 10-02-2014 |
20140307621 | SIGNALING OF SYSTEM INFORMATION TO MTC-DEVICES - Network node and UE, and methods therein for signaling system information, SI, to UEs. The method in the network node comprises transmitting SI to one or more UEs, where the SI comprises multiple alternative sets, where each set assigns different values to one or multiple radio system parameters. The method further comprises determining which set, out of the multiple alternative sets, that should currently be applied for a UE, and transmitting an SI selection signal to the UE, the SI selection signal indicating the determined set, thus enabling the UE to apply currently appropriate radio system parameters also in unfavorable radio conditions. The UE may be an MTC device (Machine Type Communication). | 10-16-2014 |
20140313908 | SYSTEM AND METHOD TO REDUCE RADIO RESOURCE MANAGEMENT (RRM) RELATED SIGNALING IN MACHINE-TO-MACHINE (M2M) COMMUNICATIONS - System and method for reducing signaling overhead related to scheduling of uplink and downlink radio resources to wireless devices (e.g., sensors or Machine-to-Machine (M2M) devices) that are primarily stationary in a cellular network. Because these wireless devices are non-moving, time-frequency channel conditions have a much lower variance for them as compared to other mobile devices in the network. Hence, the (semi)stationary channel can be estimated over time with the help of statistical methods and machine learning techniques, and stationary devices can be then instructed to stop reporting uplink and/or downlink channel condition related information to the network until further notice. When performance degradation is noticed by the base station, the scheduler may instruct the device to resume its channel condition reporting. As a byproduct of this solution, the energy consumed within such stationary terminals is reduced due to significant reductions in the number of channel measurements, their processing, and reporting. | 10-23-2014 |
20140329520 | LINE OF SIGHT (LOS) DETECTION IN A CELLULAR COMMUNICATIONS NETWORK - Systems and methods for detecting a Line of Sight (LOS) in a cellular communications network are provided. In one embodiment, a network node in the cellular communications network determines whether a wireless device is within LOS of a base station. In order do so, the network node compares a Ricean factor of a wireless communications channel between the base station and the wireless device and a predetermined Ricean factor threshold for LOS detection. In addition, the network node compares a Root Mean Squared Error (RMSE) between a Rayleigh probability density function and samples of received signal strength for radio signals transmitted between the base station and the wireless device and a predetermined RMSE threshold for LOS detection. The network node then determines whether the wireless device is within LOS of the base station based on results of the comparisons. | 11-06-2014 |
20150023439 | Apparatuses, Methods, and Computer Program Products For Selecting a Cyclic Prefix Length - Methods, devices, and computer program products for energy and/or cost efficient selection of cyclic prefix length, based at least in part on consideration of propagation and channel conditions, are disclosed. The conditions can relate to, for example, the frequency selectivity and time dispersion of a radio channel, as well as its radio propagation profile and environmental conditions. | 01-22-2015 |
20150043419 | MOBILE RELAY NODE BASED CoMP ASSISTED INTERFERENCE MITIGATION - Systems and methods for Mobile Relay Node (MRN) based Coordinated Multipoint (CoMP) operation in a cellular communications network are disclosed. In one embodiment, MRN based CoMP operation is utilized to provide interference mitigation for wireless devices, and preferably provide interference mitigation for cell edge wireless devices. | 02-12-2015 |
20150189532 | METHODS AND DEVICES FOR DEACTIVATING A NODE IN A COMMUNICATION NETWORK - A method for deactivating a first node in a communication network includes determining, in a first time period, a number (A) of active mobile UE devices in a first network cell; determining a number (B) of static UE devices in the first network cell; and determining a number (C) of requests for direct D2D communication from UE devices in the first network cell. The method includes estimating a number of active UE devices in the first network cell for a second time period based on one or more of A, B, and C and determining whether the estimated number of active UE devices is less than a threshold. If so, the method includes transmitting a request to a second node to take over communication with one or more of the UE devices. If the request is accepted by the second node, the first node is deactivated. | 07-02-2015 |
20150215915 | DOWNLINK CONTROL FOR WIRELESS HETEROGENEOUS TELECOMMUNICATIONS - A heterogeneous radio access network ( | 07-30-2015 |
20150245261 | HANDOVER ROBUSTNESS IN CELLULAR RADIO COMMUNICATIONS - An indication of the speed of movement of a UE in a radio communications system is received at a network node of the radio communications system. The parameters of the radio communications system are then analyzed using the speed of movement indication. The system parameters are then adjusted using the analysis. | 08-27-2015 |
20150311967 | MITIGATION OF INTERFERENCE FROM A MOBILE RELAY NODE TO HETEROGENEOUS NETWORKS - Devices, systems and methods for mitigating the interference introduced by mobile relay nodes in a heterogeneous network are described. The techniques described apply fractional frequency reuse and power controlled beamforming to mitigate such interference. | 10-29-2015 |
20150312918 | METHODS AND DEVICES FOR REDUCING INTERFERENCE IN HETEROGENEOUS COMMUNICATION NETWORKS BASED ON INTER-CELL INTERFERENCE COORDINATION - Devices and methods for reducing interference in a communication network including a first node and a first node coverage area, a second closed subscriber group (CSG) node located within the first node coverage area, and one or more user equipment (UE) devices located within the first node coverage area are provided. In one embodiment, a method includes receiving link quality measurement information from the one or more UE devices and determining if a link quality value for a UE device is below a predetermined link quality threshold value and is caused by the second CSG node. If both conditions are true, if the UE device is a member of the second CSG node, and if the first UE device does not include interference cancellation capability, the method further includes instructing the second CSG node to mute transmission causing interference for the UE device. | 10-29-2015 |