Patent application number | Description | Published |
20100261493 | INTER-CELL INTERFERENCE MITIGATION - A method and Coordinated Multi-Point (CoMP) cell controller for reducing interference in a wireless communication network in which a first CoMP cell neighbors a second CoMP cell. The CoMP cell controller in the first CoMP cell gathers scheduling information from border sub-cells in the neighboring second CoMP cell in which transmissions to and from UEs cause inter-CoMP cell interference in at least one sub-cell in the first CoMP cell. The CoMP cell controller augments intra-CoMP cell scheduling information in the first CoMP cell with the scheduling information from the border sub-cells to create augmented scheduling information. The CoMP cell controller then utilizes the augmented scheduling information to schedule transmissions to and from UEs within the at least one sub-cell in the first CoMP cell to reduce the inter-CoMP cell interference. | 10-14-2010 |
20100323712 | NETWORK-WIDE INTER-CELL INTERFERENCE MINIMIZATION VIA COORDINATED MULTIPOINT CELL SCHEDULING COORDINATION - Network-wide inter-cell interference is reduced by aggregating cells (herein, sub-cells) into Coordinated MultiPoint (CoMP) cells, each having a controller. The CoMP cells are divided into sets, similar to a frequency reuse plan. Scheduling information regarding transmissions scheduled to and from UEs in one set of CoMP cells is transmitted to controllers in sets of neighboring CoMP cells, in advance of the transmissions. Controllers in the receiving sets of CoMP cells schedule transmission to minimize both inter-sub-cell interference and interference with the set of CoMP cells that transmitted the scheduling information, and assuming no interference from other CoMP cells. They then transmit scheduling information to subsequent set(s) of CoMP cells. The order of scheduling information transmission between sets of CoMP cells may be rotated for fairness. The scheduling information may range from bare threshold data indicating at least one transmission, to detailed information such as estimated path gains to each UE. | 12-23-2010 |
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 |
20110103291 | INTRA-SUBFRAME TIME MULTIPLEXING - A relay node ( | 05-05-2011 |
20110218010 | Method and Device for Link-Characteristic Based Selection of Supporting Access Nodes, - For uplink cooperation of a serving access node ( | 09-08-2011 |
20110243037 | RELAY RADIO FRONT-END - A relay node ( | 10-06-2011 |
20110256877 | Method and Arrangement to Control a Repeater in a Wireless Communication System - An object of the present invention is to provide a mechanism for controlling a repeater that is less costly and more flexible. The objective is achieved by a method in a control unit ( | 10-20-2011 |
20110263271 | Techniques for Uplink Cooperation of Access Nodes - For uplink cooperation of a serving access node ( | 10-27-2011 |
20110269474 | Methods and nodes in a radio communication system - The present invention generally relates to radio communication systems, relay nodes, controller nodes, user equipment (user terminals), software and methods for said systems and nodes. In one embodiment, a method for operating a control node for a wireless communication system is provided. The method comprises the steps: creating a data frame comprising an early part and a later part, wherein the early part comprises first control data for controlling a receiving node; checking whether second control data are to be put into the later part; scheduling payload data for the receiving node into the later part if second control data are not to be put into the later part; and transmitting the date frame to the receiving node. | 11-03-2011 |
20110296719 | Method and Entity for Conveying Data Units - A method of conveying data unit traffic from a radio terminal in a mobile communication system that comprises an access network (E-UTRAN) and a core network (Evolved Packet Core) is described. It comprises:—receiving (S31) a service request message for data unit communication from said radio terminal, and—performing (S32) a conveying decision procedure, and on the basis of an outcome of said conveying decision procedure, associating a radio channel between an access network entity and a radio terminal with one of a channel to a dedicated data unit processing entity (P-GW) in said core network for conveying data units from said radio terminal to said dedicated data unit processing entity for processing (S33), and—an access network channel for conveying data units from said radio terminal within said access network (S34). | 12-08-2011 |
20120106340 | Self-Optimizing Repeater - The object of the present invention is to reduce interference and power consumption of a repeater operated in a wireless communication network. According to the present invention this object is achieved by a self-optimizing repeater ( | 05-03-2012 |
20120134429 | Techniques for Quantization Adaptation in Cooperative Signal Communication - In cooperative signal communication between a mobile terminal ( | 05-31-2012 |
20120147815 | UPLINK HYBRID-ARQ MECHANISM FOR COOPERATIVE BASE STATIONS - Method for performing a feedback process between a network access node and a user terminal, comprising collecting supporting information and suspending a transmission of a transport block until the supporting information is collected and/or a decision is taken as to whether request either a new transmission or a retransmission. The method may be performed in a serving network node cooperating with supporting network nodes, receivers or antennas, wherein a first part of the information of the transport block is gathered from a receiver or antenna within the serving network node and a second part of the information of the transport block is gathered from one of the supporting network nodes, receivers or antennas. | 06-14-2012 |
20120170504 | Controlling a Transmission of Information in a Wireless Communication Network With a Relay Node - The present invention relates to a transmission of information in a wireless communication network between a radio access node ( | 07-05-2012 |
20120184322 | Method and Device for Selection of Mobile Stations in Coordinated Multipoint Transmission - A method of data transmission with a first mobile station (UE | 07-19-2012 |
20120202498 | Technique For Instructing Mobile Stations Communicating With Cooperating Access Nodes - A technique for instructing at least one mobile station communicating with a serving access node, the serving access node being capable of cooperating with a plurality of supporting access nodes and the at least one mobile station being capable of additionally communicating with the plurality of supporting access nodes is provided. A method implementation of this technique comprises the steps of obtaining at least one backhaul parameter relating to a backhaul capacity of at least one of the serving access node and a supporting access node, generating at least one of a handover command and a system information parameter based on the obtained at least one backhaul parameter, and providing the at least one of the handover command and the system information parameter to the at least one mobile station. | 08-09-2012 |
20120224574 | Handling of Acknowledgement Messages in a Relay Network Node - The invention proposes a novel method for handling acknowledgement messages between a first protocol layer (L1) and a second protocol layer (L2) in a network node operating as a relay network node (RN). The first protocol layer (L1) is lower with respect to the second protocol layer (L2). The acknowledgement messages (ACK) are related to Automatic Repeat Request (ARQ) processes and the Relay Node (RN) is engaged in an Uplink transmission towards a network access node (eNB). The method comprises a step ( | 09-06-2012 |
20120230245 | HARQ HANDLING AT RELAY NODE RECONFIGURATION - A radio access network comprises a donor base station node ( | 09-13-2012 |
20120281683 | Interference Mitigation in Downlink Signal Communication to a Mobile Terminal - In downlink signal communication to a mobile terminal ( | 11-08-2012 |
20120300654 | Adaptive Feedback of Channel Information for Coordinated Transmission on a Wireless Backhaul - A backhaul link is established between a base station and a relay that assists the base station in communicating with a mobile device over an access link established between the relay and the mobile device. The channel response of the back-haul link is determined by estimating first and second parts of the backhaul link channel response, the second part changing faster than the first part. The first part of the backhaul link channel response is estimated by calculating an average of the backhaul link channel response over a predetermined period at the relay and the second part is estimated by calculating variation in the backhaul link channel response over the predetermined period at the relay. Quantized versions of the first and second parts of the backhaul link channel response are transmitted from the relay to the base station over the backhaul link | 11-29-2012 |
20120302172 | Transmission Parameter Adaptation in Cooperative Signal Communication - With respect to cooperative signal communication between a mobile terminal ( | 11-29-2012 |
20130058264 | Method and Arrangement in a Wireless Communication Network - Method and arrangement in a base station for sending control signals to a relay node. The relay node is configured to relay a data transmission from the base station to a user equipment in a subframe. The subframe comprises a first part, dedicated for downlink transmission, a second part dedicated for uplink transmission and a separating part situated between the first part and the second part. The base station, the relay node and the user equipment are comprised in a wireless communication network configured to operate according to the Time Division Duplex TDD principle. The method comprising transmitting data to the user equipment via the relay node in the first part of the subframe and transmitting the control signals, related to the transmitted data, to the relay node in the separating part between the first part and the second part of the subframe. Further, a method and arrangement in a relay node for receiving control signals from the base station are described. | 03-07-2013 |
20130083745 | Multiplexing control and data in one resource block - A method for operating a control node for a wireless communication system. The control node creates a data frame having at least one resource block. The data elements of the resource block are subdivided into at least a first subset and a second subset The first subset comprises first control data for controlling a receiving node The second subset comprises data elements of said resource block not used for control data for controlling said receiving node. The method further comprises checking whether second control data for a second receiving node are to be put into the second subset, scheduling payload data for the receiving node into the second subset if second control data are not to be put into the second subset of data elements, and transmitting the data frame to the receiving node. | 04-04-2013 |
20130107735 | Numbering of Automatic Repeat Request Processes | 05-02-2013 |
20130114521 | NETWORK NODE, USER EQUIPMENT AND METHODS THEREIN - A method in a network node for transmitting an enhanced Control CHannel, eCCH, to a user equipment in a telecommunications system. The eCCH comprises control information to the user equipment in at least one Control Channel Element, CCE. The at least one CCE maps to a number of resource elements comprised in at least one enhanced resource element group. The at least one enhanced resource element group is comprised in at least one resource block in a time-frequency Orthogonal Frequency Division Multiplexing, OFDM, grid. The network node decides to use a CCE aggregation level that is smaller than the smallest CCE aggregation level of a physical downlink control channel, PDCCH, for a first eCCH. The network node then modulates the first eCCH by using a higher order modulation than Quadrature Phase Shift Keying, QPSK, modulation, when the smaller CCE aggregation level is used for the first eCCH. Then, the network node maps the modulated first eCCH to the at least one enhanced resource element group of resource elements in the at least one resource block, and transmits the mapped first eCCH to the user equipment. A network node, a method in user equipment and a user equipment are also provided. | 05-09-2013 |
20130114522 | Network Node, User Equipment and Methods Therein - A method in a user equipment device for estimating a channel upon receiving an enhanced control channel (eCCH) from a network node in a telecommunications system includes distributing the eCCH over multiple resource pairs, where each of the multiple resource block pairs includes a number of resources. Each of the resources is associated with a respective antenna port. The user equipment device identifies an antenna port that is associated with multiple ones of the resources. The multiple ones of the resources are present in different resource block pairs of the multiple resource block pairs over which the eCCH is distributed. Identifying the antenna port is based on how the eCCH is mapped to the multiple resource block pairs. The user equipment device estimates the downlink channel for the eCCH based on the identified antenna port in the multiple ones of the resources in the multiple resource block pairs. | 05-09-2013 |
20130136028 | Automatic Guard Period Adjustment in a Base Station for Time Division Duplexed Wireless Communications - The present invention is directed to a method for adjusting a guard period in a base station for a cellular wireless communication system. The base station is adapted to communicate in a frame structure comprising a downlink frame followed by the guard period followed by an uplink frame. The method comprises the following steps: measuring interference in dependence on time from at least one interfering base station; and adjusting an uplink frame start time within the frame structure in dependence on the measured interference. The invention also relates to a base station, a network management entity, a computer program product and a method for operating the network entity. | 05-30-2013 |
20130136041 | Automatic Guard Period Adjustment in Time Division Duplexed Wireless Communication - The present invention is directed to methods for adjusting a guard period in a cellular wireless communication system, to a base station adapted to adjust a guard period, and to a network management entity for adjusting a guard period. One method comprises the steps: obtaining (S | 05-30-2013 |
20130230015 | Control Channel Configuration in a Wireless Communications System - The present invention is directed to methods in a wireless communication network for allocating resource elements of a transmission resource to a control channel. The invention also relates to different nodes of a wireless communication network. The transmission resource comprises a first number of resource blocks each comprising one or a plurality of subsets of resource elements. One method in a control node comprises the steps: obtaining a bitmap for configuration of the transmission resource, wherein the bitmap is adapted to identify at least one subset of resource elements within the transmission resource (S | 09-05-2013 |
20130250923 | BANDWIDTH ADAPTIVE REFERENCE SIGNALS - Systems and methods for providing bandwidth adaptive reference signals are disclosed. In one embodiment, a wireless device receives a downlink signal from a base station in a cellular communication network on a corresponding downlink carrier, where a number of time domain units per frame in the downlink signal that carry reference symbols is determined based on, or is otherwise a function of, a system bandwidth of the downlink carrier. In addition, in some embodiments, a number of frequency domain units that carry reference symbols is also a function of the system bandwidth of the downlink carrier. The wireless device processes the reference symbols to provide one or more desired features such as, for example, synchronization, radio resource management measurements, channel estimation, or the like. | 09-26-2013 |
20140050159 | Methods and Arrangements for Transmitting and Receiving Control Information - Some embodiments provide a method for transmitting a downlink control channel in at least one block of resources. The downlink control channel comprises a set of resource element groups. The method may be executed by a transmitting node, e.g., an eNB. The transmitting node first determines whether to transmit the downlink control channel using localized or distributed transmission. Responsive to determining to use localized transmission, the transmitting node performs the transmission such that all resource element groups in the set that are comprised in the same block of resources are mapped to the same antenna port, and the antenna port depends on which subset of resource element groups in the block of resources are used for the downlink control channel. | 02-20-2014 |
20140086188 | Methods and Devices for Transmission of Control Data to a User Equipment - A method for transmission of control data to a user equipment in a mobile telecommunication system, wherein the method comprises sending control data to the user equipment in a data transmission, and performing, by the user equipment, a blind decoding of transmission elements within the data transmission in order to detect the control data in a data region in the data transmission. | 03-27-2014 |
20140112252 | Search Area Based Control Channel Monitoring - According to an embodiment of the invention, a method of operating a control node for communication with at least one receiving node is provided. The communication is structured in frames comprising several subframes ( | 04-24-2014 |
20140133387 | SUB-CARRIER ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM USING RELAYS - Exemplifying embodiments herein relate to a relay node and a method therein for communicating data to a user equipment, the relay node being associated with a base station, is provided. The method comprises receiving information from the base station indicating a first set of resource blocks of a subframe comprising control information. The method further comprises identifying, based on the received information, at least one resource block outside said first set of resource blocks, and scheduling, to the user equipment, transmissions on the at least one identified resource block. | 05-15-2014 |
20140133388 | SUB-CARRIER ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM - A radio base station, a relay node and a respective method therein are provided for communicating data to a user equipment, the relay node being associated with the base station, wherein a downlink transmission to the user equipment is scheduled on subframe(s) available for the base station. The method in the radio base station comprises detecting that at least a part of the available subframes are not needed for downlink transmission to the relay node; and un-reserving at least one of the not needed subframes. The method further comprises transmitting, to the relay node, a release notification message notifying the relay node of the unreserved subframes for enabling the relay node to use the unreserved subframes for downlink transmission. | 05-15-2014 |
20140153472 | Relaying Multicast Data in a Wireless Network - In order to provide efficient relaying of multicast data in a wireless network, the wireless network comprises a base station and a relay node. The relay node is configured for transmissions on the basis of a radio frame including one or more subframes for unicast transmission and one or more subframes for multicast transmission. In a multicast-only operating mode of the relay node, the base station transmits multicast data to the relay node in one or more subframes which are selectable from the one or more subframes for unicast transmission and the one or more subframes for multicast transmission. The relay node receives the multicast data as transmitted by the base station and transmits the received multicast data in one or more of the subframes for multicast transmission. | 06-05-2014 |
20140348055 | RELAYING UNICAST AND MULTICAST DATA IN A WIRELESS NETWORK - A relay node for a wireless network is configured for transmissions on the basis of a radio frame with a plurality of subframes. The relay node includes a first relay path and a second relay path. The first relay path is configured to receive, in a first subframe of the subframes, first unicast transmission signals, to decode the first unicast transmission signals to obtain unicast data, and to forward the decoded unicast data by sending second unicast transmission signals in a second subframe of the subframes. The second relay path is configured to receive, in a third subframe of the subframes, multicast transmission signals, to amplify the received multicast transmission signals, and to send the amplified multicast transmission signals in the third subframe. The relay node may switch between the first relay path and the second relay path in order to implement a hybrid Decode-and-Forward and Amplify-and-Forward relaying operation. | 11-27-2014 |