Patent application number | Description | Published |
20080232258 | Method and Arragement for Advanced Routing Metrics in Multihop Networks - The inventors have envisioned a multihop network scenario in which nodes are equipped with advanced multi-antenna arrangements, and recognized the advantage of exploring the presence of such advanced antenna arrangements in multihop network nodes for the specific purpose of determining link cost for routing in the network. A basic idea of the invention is therefore to determine link cost for a wireless link between a pair of nodes in the network based on multi-channel characteristics between the nodes, where at least one of the nodes is configured for operation with multiple antennas to provide for multiple channels. These multi-channel characteristics may for example be determined based on explicit channel matrix estimation and/or the number of transmit and receive antennas or other information on the antenna capabilities of the involved nodes. The determined link cost information may subsequently be used together with additional routing cost information for route determination, and packet forwarding. | 09-25-2008 |
20090010269 | Method And Apparatus For Routing Packets - Packets may be routed in a heterogeneous communications network as follows: for a set of packets comprising at least one packet to be transmitted from a sending node, said sending node being able to handle communication according to at least two access technologies, —selecting in a selection unit in the sending node an access technology for use when transmitting the set of packets, —selecting a receiving node in the network to which to transmit the set of packets among nodes in the network that are able to handle said selected access technology—transmitting the set of packets to the selected receiving node using the selected access technology. Alternatively, a set of packets may be transmitted to one or more nodes using at least two different access technologies. Depending on the transmission quality, one node may be selected to forward the set of packets. | 01-08-2009 |
20090109902 | METHOD AND ARRANGEMENT IN A COMMUNICATIONS SYSTEM - The object of the present invention is to provide a mechanism for a more efficient carrier search. The object is achieved by a method for sending a signal in a first node. The first node communicates with a second node via radio communication, which radio communication is performed by multi carrier transmission. The first node uses a carrier, being associated with a frequency range. The method comprises the step of transmitting an end-marker signal within or close to the frequency range. The end-marker signal is intended to be received and used by the second node for identifying the frequency range of the used carrier. | 04-30-2009 |
20090231989 | Method and Apparatus for Interference Reduction - A method and apparatus for reducing interference caused by an interfering signal are disclosed for use in an access node, such as a base station, communicating with at least one mobile terminal in a wireless network, the method comprising the following steps: receiving information related to at least one data packet that is to be transmitted by a second access node to at least a second mobile terminal, receiving time-frequency information about the point in time when the at least one data packet will be transmitted from the second access node to the second mobile terminal, estimating the interfering signal based on the at least one data packet, cancelling interference based on the estimated interference signal at the point in time. This facilitates interference cancellation, especially in a network using distributed RRM. | 09-17-2009 |
20090268662 | Method and Arrangement for Bi-Directional Relating in Wireless Communication Systems - The present invention relates to methods and arrangements in a relaying radio node and/or in a sending/receiving radio node, adapted for use in a relaying communication system. The relaying node is in bidirectional communication with at least a first and a second sending/receiving radio node, and the relaying radio node receives at least a first signal carrying at least first data and a second signal carrying at least second data. The relaying node generates a reduced representation of at least the first and second signal, with a reduced information content as compared to the first and second data, by a joint non-linearly encoding operation, and transmits the reduced representation to at least the first and the second communication node. The first and second sending/receiving node can extract data from the reduced representation by a non-linear decoding operation using stored a priori information. | 10-29-2009 |
20100074177 | Exchange of Information in a Communication Network - A portable node capable of forming ad hoc networks with other nodes is disclosed, as well as a method of transferring at least a first and a second information entity (e.g. files) from a first node to other nodes in an ad hoc network. At least the first and the second information entities are jointly encoded, in the first node, into a composite information entity) in a manner so that the composite information entity can be decoded by use of at least the first information entity or the second information entity. The composite information entity is subsequently transmitted. | 03-25-2010 |
20100111069 | SYSTEM AND METHOD OF DOWNLINKING DATA TO AN UNSYNCHRONIZED USER EQUIPMENT IN A TELECOMMUNICATIONS NETWORK - A system, method and node of downlinking transmissions to an unsynchronized UE in a telecommunications network. The method begins by a node in the network requesting synchronization of the UE with the network. A first transmission of data is sent from the node to the UE prior to synchronization of the UE. The UE then synchronizes with the network by the UE performing a Random Access procedure with the node, thereby triggering a time alignment command from the node to the UE to synchronize the UE with the network. A second transmission of data is then sent from the node to the UE after the UE is synchronized. A response feedback message is sent to the node from the UE. The message is a cumulative feedback message of the first transmission of data and the second transmission of data. Thus, data may be transmitted prior to synchronization of the UE. | 05-06-2010 |
20100279602 | Node and a Method for use in a Wireless Communications System - The invention relates to a relay or repeater node ( | 11-04-2010 |
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 |
20110075633 | Data Forwarding During Handover in a Self-Backhauled Cell - A method is implemented in an anchor eNodeB of a network, where the anchor eNodeB communicates with a self-backhauled eNodeB via a radio interface and where the network further includes another eNodeB. The method includes determining whether a user equipment (UE) is being handed off from the first self-backhauled eNodeB to the other eNodeB. The determining is based on: receiving ( | 03-31-2011 |
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 |
20110194535 | QoS Management for Self-Backhauling in LTE - A method manages bearers over a first wireless link between a self-backhauled base station and a base station, where the self-backhauled base station serves one or more user equipments (UEs) via one or more second wireless links in a network. The method is implemented at the self-backhauled base station and includes identifying changes in numbers and/or characteristics of UE bearers multiplexed onto a backhaul bearer associated with the first wireless link. The method further includes dynamically reconfiguring resources allocated to the backhaul beare | 08-11-2011 |
20110195708 | Optimized Handover Configuration - A method for power measurements in a cellular communication system comprises receiving measurement configuration orders. Operation of a power meter is controlled in dependence on the measurement configuration orders. Reference signal received powers are measured. A measurement report is compiled and transmitted. The measurement configuration orders comprise cell status information associated with neighbouring cells and measurement instructions that are dependent of the cell status of respective cell. The cell status information comprises information about whether the neighbouring cell is of a different type than the serving cell. Controlling of the operation of the power meter and/or compiling of the measurement report is performed in dependence on the cell status of the neighbouring cell. A method for handover based on such measurement reports is also disclosed as well as Node Bs and user equipments configured to perform such methods. | 08-11-2011 |
20110217921 | Enhancing Outage Capacity Based on Adaptive Mode Switching between On-Frequency and Frequency Translation - A method includes determining channel quality feedback information characterizing the channels statistically and calculating, based on the channel quality feedback information, a robustness related measure, such as outage capacity, associated with an on-frequency mode of operation and a robustness related measure, such as an outage capacity, associated with a frequency translated mode of operation. The method includes selecting the on-frequency mode of operation or the frequency translated mode of operation that maximizes the robustness related measure, such as outage capacity. The method also includes transmitting a message to other devices to operate in the selected on-frequency or a frequency translated modes. The method also includes performing maximum ratio combining or interference rejection combining, by at least one of the other devices, when the message indicates to operate in the frequency translated mode. | 09-08-2011 |
20110223855 | Methods and Arrangements for Determining Radio Characteristics of a Radio Link - A method and arrangement in a first node ( | 09-15-2011 |
20110275313 | Systems And Methods For Forwarding A Multi-User RF Signal - A dynamic frequency translating repeater operating in a mobile communications system is operable to receive a multi-user signal and perform time-varying and user-specific frequency shifting in the repeater signal. The dynamic frequency translating repeater may further perform user subcarrier specific dynamic frequency translation. Different mobile stations may be allocated different frequency shift amounts based on the interference environments, resource allocations, and scheduling constraints particular to each mobile station. | 11-10-2011 |
20110292843 | Method and Arrangement in a Wireless Communication Network - Method and arrangement in a relay node, for selecting communication mode. The relay node is configured to communicate with a base station via a donor antenna over a first link and to communicate with a user equipment via a coverage antenna over a second link. The method comprises obtaining an isolation value, based on the radio wave isolation between the relay donor antenna and the relay coverage antenna. The obtained isolation value is compared with an isolation threshold level value. The relay node is configured to communicate in full duplex mode if the obtained isolation value exceeds the isolation threshold level value, otherwise in half duplex mode. Information concerning the configured duplex mode of the relay node is transmitted to the base station. | 12-01-2011 |
20120020278 | Radio Bearer Identification for Self Backhauling and Relaying in LTE Advanced - The present invention relates to a method and apparatus for user terminal and bearer identification that reduces the overhead for LTE relaying (layer 2 and layer 3), which will save radio resources on the backhaul link. Reduction in overhead is achieved by providing a more efficient mechanism for user terminal and bearer identification as compared to using GTP-u and associated UDP/IP headers. | 01-26-2012 |
20120100845 | Power Saving in a Radio Base Station by Determining Number of Active and Idle Users Camping on Cell - Methods of operating a radio base station of a first cell in a wireless cellular network are disclosed. Each of one or more user equipment devices of the wireless cellular network has an idle mode in which the radio base station is not aware of whether the user equipment device is currently camping on the first cell, and an active mode in which the radio base station is aware of whether the user equipment device is currently camping on the first cell. By setting the radio base station in a disabled state based on various criteria, energy may be saved in the radio base station. | 04-26-2012 |
20120134284 | Methods and Nodes in a Wireless Communication Network - First network node | 05-31-2012 |
20120309395 | Carrier Aggregation Support for Home Base Stations - Home base station nodes ( | 12-06-2012 |
20140080484 | Node a Method for Providing an Interface Between Base Stations - Example embodiments are directed towards establishing a base station ( | 03-20-2014 |
20140092866 | Node and Method for Enabling a Wireless Terminal to be Served by Multiple Cells in a Communications Network - Example embodiments presented herein are directed towards a wireless terminal and base station, and corresponding methods therein, for providing a handover for a subset of bearers associated with the wireless terminal. The subset of bearers is less than a total number of bearers associated with the wireless terminal. Thus, upon the completion of the handover procedure, at least one bearer will stay connected with a source base station. | 04-03-2014 |
20140106737 | Green Relay Scheduler - The embodiments herein relate to a method in a relay node ( | 04-17-2014 |
20140161438 | PROTECTION FOR DISTRIBUTED RADIO ACCESS NETWORKS - The invention relates to a distributed radio access network communicatively coupled to a core network, and a method for upholding a service in case of a failure in the distributed radio access network. The distributed radio access network comprises a main radio equipment controller communicatively coupled to at least one remote radio unit over a main optical path, a backup radio equipment controller communicatively coupled to the main radio equipment controller for synchronization, and a protection optical path for communicatively coupling the at least one remote radio unit to the backup radio equipment controller in case of a failure in communication between the main radio equipment controller and the at least one remote radio unit over the main optical path such that a service remains running when the failure occurs. | 06-12-2014 |
20140206361 | Node and Method for Handing Over a Sub-set of Bearers to Enable Multiple Connectivity of a Terminal Towards Several Base Stations - Example embodiments presented herein are directed towards source ( | 07-24-2014 |
20140293958 | Node and Method for Selective Handover - Example embodiments presented herein are directed towards a target base station ( | 10-02-2014 |
20140328215 | FAST OPPORTUNISTIC DISTRIBUTED RESOURCE REALLOCATION FOR ESTABLISHED CONNECTIONS IN A MULTIHOP NETWORK - A multihop network and nodes are described herein that implement a reactive routing protocol that enables resources of the multihop network to be continuously adapted in a distributed/opportunistic manner in response to a topology change within the multihop network so as to optimize the performance of a connection between a source node and a destination node. The types of resources that can be adapted include for example: (1) a route; (2) a channel; and/or (3) physical layer parameters. The different types of topology changes that can occur include: (1) movement of a node; (2) quality variations in a channel between the source node and the destination node; (3) changes in traffic patterns in the multihop network; (4) changes in transmit patterns (e.g., power, beamforming direction) in the multihop network; and (5) changes in resource allocations in the multihop network. | 11-06-2014 |
20150087346 | INTERFERENCE CONTROL BETWEEN DIFFERENT RADIO COMMUNICATION SYSTEMS INVOLVING USER EQUIPMENTS - A first User Equipment (UE), a second UE, a first Radio Network Node (RNN), and methods therein for controlling interference between transmissions in a first system and transmissions in a second system. The first system comprises the first UE and the first RNN serving the first UE. The second system comprises the second UE and a second RNN serving the second UE. The first system has a first priority in a first part of a shared spectrum and the second system has a second priority in the first part of the shared spectrum, wherein the first priority is higher than the second priority. The method in the first UE comprises transmitting a signal to a second RNN that is to perform a downlink transmission to the second UE, which signal is configured to control the transmission of the second RNN. | 03-26-2015 |