Patent application number | Description | Published |
20080298474 | Distributed iterative decoding for co-operative diversity - A source sends an encoded data block during a first time interval to a destination and to a relay. The source sends additional parity bits for the encoded data block during a second time interval. The relay partially decodes that encoded data block to a process-defined end point (typically only a partial decoding), such as a fixed number of decoding iterations. After partial decoding the relay forms a modified data block having corrected information bits and the parity bits of the block it received, and sends the modified data block to the destination, during the second time interval. The destination decodes to a results-defined end point the modified data block it received from the relay using the additional parity bits it received from the source. If that end-point cannot be reached, the destination may begin anew decoding the original encoded data block it received from the source. | 12-04-2008 |
20090125363 | Method, apparatus and computer program for employing a frame structure in wireless communication - A frame structure for scheduling radio resources includes a first time slot, followed by a plurality of other time slots each having either a second length, or a first length that is approximately double the second length. Transmissions are sent in downlink ones of the other time slots and received in uplink ones of the other timeslots. In various embodiments, the first length is 1.35 ms/19 symbols and the second length is 0.675 ms/9 symbols; the first timeslot is downlink and has length 0.852 ms/12 symbols; there is an additional guard period of 26 microseconds between the first timeslot and the other timeslot that follows the first timeslot which is uplink and has the first length; there may also be a single symbol between the guard period and that uplink timeslot for uplink signaling; and all other timeslots that are downlink are of the second length. | 05-14-2009 |
20100177654 | OPERATING CARRIER SELECTION FOR HOME NETWORK - Various embodiments are disclosed relating to carrier selection for a home network. In an example network, a method may include using a first carrier frequency to transmit in a downlink direction to a mobile node in a home wireless network, and receiving, from the mobile node, a signal strength measurement for each of a plurality of carrier frequencies. The method may further include receiving, from the mobile node, an error report for the first carrier frequency, and determining that a link quality for the first carrier frequency is below a threshold based on the error report. The method may further include selecting a second carrier frequency from the plurality of carrier frequencies based on the determining and based on the signal strength measurement of the second carrier frequency, and changing, based on the selecting, from the first carrier frequency to the second carrier frequency to transmit data in a downlink direction to the mobile node. | 07-15-2010 |
20100317284 | METHODS, COMPUTER PROGRAM PRODUCTS AND APPARATUS PROVIDING IMPROVED USE OF RELAYS IN WIRELESS COMMUNICATION - In one exemplary embodiment, an apparatus ( | 12-16-2010 |
20110039574 | APPARATUS AND METHOD FOR POSITIONING A WIRELESS USER EQUIPMENT - In accordance with an example embodiment of the present invention, a method is disclosed that comprises receiving a reference signal from each of at least two target neighbor cells via at least one receiving branch at a user equipment; estimating a timing range based at least on one of a timing advance for a serving cell and an inter-cell distance between the target neighbor cell and the serving cell; computing a reference signal time difference for the received reference signal from the target neighbor cell; and screening the computed reference signal time difference using the estimated timing range. | 02-17-2011 |
20110092200 | INTERFERENCE AVOIDANCE ON COMMON CHANNELS IN UNCOORDINATED NETWORK DEPLOYMENTS WITH FLEXIBLE SPECTRUM USE - A network access node selects one chunk of spectrum from a plurality of chunks of spectrum to be a primary chunk for a particular cell; transmits in the primary chunk from a broadcast channel BCH that contains information needed by a terminal to at least perform initial cell access; and uses a synchronization channel SCH to indicate which chunk of the plurality of chunks is the primary chunk. A user equipment receives a SCH in a particular chunk of spectrum; determines from it that one chunk is a primary chunk for a particular cell; tunes its receiver to a BCH in the primary chunk and uses information received on the BCH to obtain initial access to the particular cell. In various embodiments the SCH is only in the primary chunk or the SCH has some indication (e.g., cell ID or relative position of primary chunk) telling which chunk is primary. | 04-21-2011 |
20110182280 | Synchronization for Device-to-Device Communication - Various example embodiments are disclosed. According to one example embodiment, a method may include synchronizing, by an access node in a wireless network, with a first mobile station, synchronizing with a second mobile station, compiling a device-to-device group, the device-to-device group including at least the first mobile station and the second mobile station, sending a first connection message to the first mobile station, the first connection message including timing advance parameters of both the first mobile station and the second mobile station, and sending a second connection message to the second mobile station. | 07-28-2011 |
20110191187 | FINDING MOBILE STATION FOR DEVICE-TO-DEVICE COMMUNICATION - According to one example, a method may comprise receiving, by an advertising mobile station in a wireless network, a master profile message from an access node, the master profile message comprising, for each of a plurality of mobile stations in the wireless network, a timing parameter and at least one profile element; selecting at least one receiving mobile station from the plurality of mobile stations based, at least in part, on comparing the timing parameter of the receiving mobile station to the timing parameter of the advertising mobile station and checking the at least one profile element of the receiving mobile station against a proposed advertisement; sending a location request message to the at least one receiving mobile station; receiving the location message from the at least one receiving mobile station, the location message indicating a location of the at least one receiving mobile station. | 08-04-2011 |
20110275382 | Measurements and Fast Power Adjustments in D2D Communications - At a cluster head/first device there is received, from each of at least two other devices with which the cluster head has a respective wireless link, a quality indicator for the respective link observed by the respective other device. The cluster head compiles those received quality indicators into a compressed report, and sends the compressed report to a network entity. In a specific embodiment the cluster head also determines an additional quality indicator of each of those respective links observed by the cluster head by listening to a sounding reference signal sent by the respective other device to the network entity on a PUCCH. Those additional quality indicators are also compiled into the compressed report, as are further quality indicators received from the devices for D2D links between pairs of those other devices that exclude the cluster head. The compressed report can inform how many indicators are above/below a threshold. | 11-10-2011 |
20110287794 | METHOD AND APPARATUS FOR PROVIDING COMMUNICATION OFFLOADING TO UNLICENSED BANDS - An apparatus for providing network assisted local communication offloading to unlicensed bands may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured, with the processor, to cause the apparatus to perform at least receiving, via signaling associated with licensed band resources, information indicative of unlicensed band resources available in a particular area, and providing resource availability data, via signaling associated with the licensed band resources, to one or more devices within the particular area. The resource availability data may enable unlicensed band resource usage by at least one of the one or more devices. A corresponding method and computer program product are also provided. | 11-24-2011 |
20110312331 | METHOD AND APPARATUS FOR RESOURCE SCHEDULING FOR NETWORK CONTROLLED D2D COMMUNICATIONS - In accordance with an example embodiment of the present invention, a method comprises obtaining at a network node a scheduling reference point with a fluctuation range based at least in part on at least one metric for a plurality of cellular user equipments (UEs) and at least a pair of device-to-device (D2D) UEs; signaling the scheduling reference point and the fluctuation range to the at least pair of D2D UEs; allocating radio resources to the pair of D2D UEs according to one or more allocation criteria; receiving metrics updates from the pair of D2D UEs and the plurality of cellular users; and adjusting the scheduling reference point and the fluctuation range according to the received metric updates. | 12-22-2011 |
20120093061 | ADAPTIVE TRANSMISSION MODES FOR TRANSPARENT RELAY - There is transmitted to a user equipment UE in a first subframe of a radio frame a downlink shared channel DSCH according to a first relay-transmission mode (e.g., mode A or A′ in the examples); then switch to a second relay-transmission mode (e.g., mode C or C′ in the examples) within the radio frame based on a channel quality of the DSCH. After switching, then transmit to the UE, in a subsequent subframe of the radio frame, the DSCH according to the second relay-transmission mode. In this embodiment the HARQ process is synchronous and non-adaptive for mode C: the eNB re-transmits packets to the UE in a predetermined fashion to be concurrent with transmission of those same packets from the relay node, as scheduled by the eNB. In this embodiment the eNB receives the UE's NACK for the data that is to be retransmitted via relay through the relay node. | 04-19-2012 |
20120093098 | APPARATUS AND METHOD FOR DYNAMIC COMMUNICATION RESOURCE ALLOCATION FOR DEVICE-TO-DEVICE COMMUNICATIONS IN A WIRELESS COMMUNICATION SYSTEM - An apparatus, system and method to dynamically manage an allocation of communication resources for direct device-to-device communications between a plurality of wireless communication devices in a wireless communication system. In one embodiment, the apparatus ( | 04-19-2012 |
20120163287 | Resource Allocation Scheme for a Relay Backhaul Link - An apparatus including at least one processor and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform: determining for a group of symbols at least one candidate transmission symbol position, wherein the group of symbols include a first symbol position part for backhaul downlink symbol positions and a second symbol position part including the at least one candidate transmission symbol position; and generating at least one further backhaul downlink symbol for the at least one candidate transmission symbol position. | 06-28-2012 |
20120236798 | Method and Apparatus for Transmitting Physical Signals - Transmitting physical signals precoded at the physical layer, and transmitting via a physical channel precoded at the physical layer decoding information for use in physical layer decoding of said physical signals; wherein said decoding information is incorporated into one or more data units at a layer higher than the physical layer. Transmitting in a single sub-frame one or more physical reference signals for use in physical layer decoding of a physical channel in a plurality of sub-frames. | 09-20-2012 |
20120302254 | APPARATUS AND METHOD FOR DETERMINING A LOCATION OF WIRELESS COMMUNICATION DEVICES - An apparatus, system and method for determining a location of a wireless communication device employing machine-to-machine devices in a communication system. In one embodiment, the apparatus includes a processor | 11-29-2012 |
20130157679 | Quality of Service Management in Radio Network - A method, apparatus, and computer program for controlling device-to-device connections and associated quality-of-service parameters are presented. The quality-of-service parameters of an end-to-end connection through a plurality of different radio access networks are aligned in connection with changing a communication mode to a direct device-to-device connection. | 06-20-2013 |
20130212219 | METHOD AND APPARATUS FOR FACILITATING MACHINE GATEWAY OPERATION - An apparatus ( | 08-15-2013 |
20130265961 | Network Control - The invention relates to apparatuses, a method, computer program and computer-readable medium. | 10-10-2013 |
20140036718 | DEVICE TO DEVICE CLUSTER ENHANCEMENT TO SUPPORT DATA TRANSMISSION FROM/TO MULTIPLE DEVICES - The exemplary embodiments of this invention provide, in one aspect thereof, a method that includes operating a first wireless communications device in a role as a cluster head in a device-to-device communication mode cluster; and autonomously transferring the role of the cluster head to a second wireless communications device in the device-to-device communication mode cluster. In this method only a wireless communications device that is operating in the role of the cluster head has authority to transmit new data to another wireless communications device in the device-to-device communication mode cluster. The exemplary embodiments of this invention also provide, in another aspect thereof, a method that includes operating a first wireless communications device in a role as a cluster head in a device-to-device communication mode cluster; and transmitting a scheduling grant from the wireless communications device that is operating in the role of the cluster head to another wireless communications device in the device-to-device communication mode cluster, In this method the scheduling grant authorizes the another wireless communications device to perform, during a subframe specified by first information in the scheduling grant, a retransmission of data that was received by the another wireless communications device during a subframe specified by second information in the scheduling grant. Also disclosed are corresponding apparatus and computer readable memories storing computer program instructions to implement the methods. | 02-06-2014 |
20140254468 | Downlink Control Signaling for a Backhaul Link - In one exemplary embodiment of the invention, a method includes: sending, within at least one of a first and a second symbol time, a first transmission having first downlink control information from a network access node to a first mobile node located within a first cell serviced by the network access node; and sending, within at least a third symbol time, a second transmission having second downlink control information from the network access node to a relay node over a wireless communication link that is a backhaul link, where the second transmission is configured to enable the relay node to send, within the first symbol time, a third transmission having third downlink control information from the relay node to a second mobile node located within a second cell serviced by the relay node, where the second cell is different from the first cell. | 09-11-2014 |
20140341208 | SYNCHRONIZATION FOR DEVICE-TO-DEVICE COMMUNICATION - Various example embodiments are disclosed. According to one example embodiment, a method may include synchronizing, by an access node in a wireless network, with a first mobile station, synchronizing with a second mobile station, compiling a device-to-device group, the device-to-device group including at least the first mobile station and the second mobile station, sending a first connection message to the first mobile station, the first connection message including timing advance parameters of both the first mobile station and the second mobile station, and sending a second connection message to the second mobile station. | 11-20-2014 |
Patent application number | Description | Published |
20100098031 | Apparatus, Method and Computer Program Product Providing Initial Cell Acquisition and Pilot Sequence Detection - Disclosed herein are apparatus, methods and computer program products for performing cell acquisition and pilot sequence detection in a cellular telecommunications system such as, for example, an OFDM system. In the apparatus, methods and computer program products, a primary synchronization channel sequence and a secondary synchronization channel sequence are transmitted by a base station in a sub-frame of an OFDM downlink frame. In one embodiment, the primary synchronization channel sequence, secondary synchronization channel sequence, and system information are mapped to a plurality of sub-carriers in an FDM signal. At the user equipment, coarse synchronization is performed during cell acquisition by performing a cross correlation between the signal and a reference primary synchronization channel sequence stored in a memory of the user equipment. The coarse synchronization performed using the primary synchronization channel sequence is improved by performing a cross correlation between the signal and a reference secondary synchronization channel sequence stored in a memory of the user equipment. Identification of a pilot sequence for channel estimation purposes is performed by detecting two cyclically invariant pairs of secondary synchronization channel sequences over two consecutive frames of the signal. The cyclically invariant pair of secondary synchronization channel sequences are selected from a set of orthogonal sequences and identify a particular pilot sequence incorporated in the signal. | 04-22-2010 |
20110143770 | METHOD AND APPARATUS FOR ESTIMATING A POSITION OF A NODE IN A COMMUNICATIONS NETWORK - A method and apparatus are provided for timed estimation-based positioning of a user equipment in LTE systems. The method includes estimating, by a mobile node, a plurality of reference signal time differences (RSTD) between the mobile node and a network node. The plurality of RSTD estimates define a first correlator. The method further includes determining a second correlator of RSTD estimates, and defining the second correlator with the first correlator based on a mean of the plurality of RSTD estimates. Further, the method includes determining a distribution of the plurality of RSTD estimates, and grouping clusters of RSTD estimates in the distribution. Additionally, the method includes selecting a cluster from the clusters of RSTD estimates. The cluster includes RSTD estimates closest to a center of the second correlator. The cluster is transmitted, by the mobile node, to the network node for positioning the mobile node in a communications network. | 06-16-2011 |
20110275385 | System and Methods for Observed Time Difference of Arrival Measurements for Location Services in Cellular Devices - Systems and methods for providing improved location such as emergency services location of mobile devices in an over the air communications system are disclosed. On receiving a request, a user equipment (UE) mobile device makes observed time difference of arrival (OTDOA) measurements on signals received from certain cell communication elements. The UE selects or prioritizes the cells based on one of several schemes, including comparing internally stored cell ID information to cell ID information provided by the network, and using lists of cells that are recently used, recently received, previously used, or on a closed subscriber group (CSG) list are alternative embodiments. The UE may prioritize home eNB cells that it is a member of for the measurements. By prioritizing the cells used for the measurements, the OTDOA measurements may be limited to a few cells and the time needed to make the measurements may be reduced. | 11-10-2011 |
20110306349 | Channel Access For Local Heterogeneous Communication in a Cellular Network - In an exemplary embodiment there are determined which radio resource are to be used for contention based access, and the allocated radio resource is accessed according to a probability function that varies in dependence on at least one of interference measured on the allocated radio resource and a received power level for the allocated radio resource. By example the radio resource is allocated by a cellular base station for use in D2D communications; the base station provides configuration parameters for the D2D communications via common or dedicated signaling; the received power level is a target received power level that is received via broadcast system information or dedicated control signaling; and/or the received power level is itself a function of pathloss on a wireless link to the cellular base station. Embodiments are presented for method, apparatus, and tangibly stored computer program. | 12-15-2011 |
20120015607 | METHOD AND APPARATUS FOR DEVICE INITIATED OFFLOADING TO UNLICENSED BANDS - A method comprises communicating, by a first device, with a second device, using a device-to-device communication on licensed band, determining, by the first device, whether unlicensed band resources are available, and if the unlicensed band resources are available, initiating, by the first device, a set up of a device-to-device communication on unlicensed band. | 01-19-2012 |
20120106517 | APPARATUS AND METHOD OFSCHEDULING RESOURCES FOR DEVICE-TO-DEVICE COMMUNICATIONS - An approach is provided for scheduling resources for device-to-device communications. A resource of a network is granted to a group designated for device-to-device communications. The group then determines how the resource allocation is utilized to support the communication session and allocates the resource among the user equipment within the group independently of the base station. Further, a user equipment pair in the group determines transmit/receive (Tx/Rx) timeslot configuration to allow TDD mode operations, and further configure the modulation and coding for the device-to-device connection, and error control scheme for the pair via control signaling independently from the group. | 05-03-2012 |
20120281658 | Method and Apparatus for Providing Machine-to-Machine Communication in a Wireless Network - An apparatus for providing machine-to-machine communication in a wireless network may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured, with the processor, to cause the apparatus to perform at least providing wireless network resources to enable direct downlink communication from a wireless network access point to a relatively low power communication device, allocating wireless network resources to enable uplink data to be provided from the relatively low power communication device to a mobile gateway device within communication range of the relatively low power communication device and utilizing wireless network resources to receive the uplink data from the mobile gateway device at the wireless network access point. A corresponding method and computer program product are also provided. | 11-08-2012 |
20120307744 | Frequency Hopping In License-Exempt/Shared Bands - RRC signaling is used to configure a user device for N secondary cells SCells on license-exempt channels w | 12-06-2012 |
20120307869 | Frequency Hopping in License-Exempt/Shared Bands - RRC signaling is used to configure a user device for N secondary cells SCells on license-exempt channels w | 12-06-2012 |
20130012191 | Method and Apparatus for Providing Machine-to-Machine Communication in a Wireless Network - A method and apparatus are provided that may enable the provision of machine to machine (M2M) communication in a wireless network environment. In this regard, for example, relatively low power devices (specifically referencing low transmission power) such as sensors or other machines in an M2M system may be enabled to communicate with a mobile terminal via a first carrier when the power ratio between the average received machine power and the average downlink received cellular power is below a threshold value and communicate with the mobile terminal via a second carrier if the power ratio exceeds the threshold value. Thus, only one carrier may be needed by devices in such an environment in order to perform M2M communication. | 01-10-2013 |
20130016221 | MAPPING METHOD IN A GEOGRAPHICAL TRACKING AREA FOR TELEVISION WHITE SPACE BANDSAANM Charbit; GillesAACI FarnboroughAACO GBAAGP Charbit; Gilles Farnborough GBAANM Turtinen; SamuliAACI IiAACO FIAAGP Turtinen; Samuli Ii FIAANM Hakola; Sami-JukkaAACI KempeleAACO FIAAGP Hakola; Sami-Jukka Kempele FIAANM Koskela; TimoAACI OuluAACO FIAAGP Koskela; Timo Oulu FI - The present invention discloses an apparatus, a method and a computer program for mapping and allocating available television white space channels for a terminal requesting resources. The mapping is based on the data of available overlapping TV white space channels within a geographical tracking area and coexistence with other cellular secondary systems within the area. Furthermore, a location for a moving mode II device may be tracked periodically. The geo-location accuracy of the mode II device affects the TV white space resources which can be allocated to the device. | 01-17-2013 |
20130028224 | Method and Apparatus for Providing Machine Initial Access Procedure for Machine to Machine Communication - A method and apparatus are therefore provided that may enable the provision of M2M communication in a wireless network environment. In this regard, for example, relatively low power devices (specifically referencing low transmission power) such as sensors or other machines in an M2M system may be enabled to initiate communication with a network through a mobile terminal in a more reliable and robust manner. The machine may transmit a busy-signal to request a reservation of a machine access slot on a machine access control channel to reserve the slot before transmitting any machine information or data to reduce the likelihood of collisions with other machines. Once the machine has reserved the machine access slot, the machine may transmit identification information via randomly selected frequency division multi-plexed or code division multiplexed resources to further reduce the likelihood of collisions with other machines. Thus, delays in establishing connections may be reduced or eliminated. | 01-31-2013 |
20130044659 | Wireless Devices and Base Stations and Methods of Operating - In one aspect, a wireless device sends a synchronisation group identifier to a network control apparatus identifying a synchronisation group of wireless devices. If the wireless device is notified that no other devices of the synchronisation group are connected to the control apparatus, the wireless device transmits a timing reference to and agrees an extended discontinuous reception time period with the control apparatus. Otherwise, the wireless device receives a timing reference and an extended discontinuous reception time period from the control apparatus. The wireless device periodically enters an idle state and powers up for reception in accordance with at least the timing reference and the extended discontinuous reception time period. In another aspect, plural base stations each use a common timing reference and a common extended discontinuous reception time period in controlling the operation of extended discontinuous reception by a synchronisation group of wireless devices. | 02-21-2013 |
20130044661 | Wireless Device and Base Stations and Methods of Operating - In one aspect, a wireless device sends a synchronisation group identifier to a network control apparatus identifying a synchronisation group of wireless devices. If the wireless device is notified that no other devices of the synchronisation group are connected to the control apparatus, the wireless device transmits a timing reference to and agrees an extended discontinuous reception time period with the control apparatus. Otherwise, the wireless device receives a timing reference and an extended discontinuous reception time period from the control apparatus. The wireless device periodically enters an idle state and powers up for reception in accordance with at least the timing reference and the extended discontinuous reception time period. In another aspect, plural base stations each use a common timing reference and a common extended discontinuous reception time period in controlling the operation of extended discontinuous reception by a synchronisation group of wireless devices. | 02-21-2013 |
20130079040 | METHOD AND APPARATUS FOR A CELLULAR ASSISTED INTELLIGENT TRANSPORTATION SYSTEM - A method, apparatus and computer program product are therefore provided according to an example embodiment to provide a cellular based ITS environment. The cellular based ITS environment may be configured based on LTE based interfaces. In this regard, a method includes receiving configuration information from a first access point, wherein the configuration information defines an ITS target area comprising at least the first access point and a first RSU. A method also includes receiving an ITS paging message from the first access point. A method also includes causing a reselection of the first RSU while in the communications range of the first access point in the ITS target area and in response to the received ITS paging message. | 03-28-2013 |
20130107116 | Apparatus and Method for Communication | 05-02-2013 |
20130115954 | METHOD AND APPARATUS FOR HANDOVER USING PREDICTED VEHICULAR LOCATIONS - A method, apparatus and computer program product are therefore provided according to an example embodiment to distribute and utilize location information received from one or more networks to determine handover timing and target cell selection for a mobile terminal. A method also includes determining a predicted future mobile terminal location based on the location information for the mobile terminal. A method also includes determining at least one network entity with a serving area that encompasses the predicted future mobile terminal location. A method also includes causing the at least one network entity to receive handover instructions by causing the predicted future mobile terminal location and information regarding the at least one network entity to be transmitted to a network management node. | 05-09-2013 |
20130122901 | Wireless Communication Systems and Methods - Embodiments of the invention provide methods, devices and computer programs arranged to control access to a cell in a communication network. One embodiment comprises an apparatus comprising a processing system arranged to cause the apparatus to: receive a plurality of Closed Subscriber Group identifiers (CSG IDs) assigned to the cell; select and transmit a first CSG ID from the plurality of CSG IDs on the basis of a first load condition on the cell; and select and transmit a second, different, CSG ID from the plurality of CSG IDs on the basis of a second, different, load condition on the cell. | 05-16-2013 |
20130150051 | Method and Apparatus for Device-to-Device Communication - A method of controlling device-to-device communications between user equipment, including using a network control element, which is common to a plurality of networks, including controlling any of the following functions: network access control functions, connection set-up, resource allocation, mode switching, handover, security and/or charging. Also a method of controlling handovers or connections in a device-to-device communications between a first and a second user equipment wherein the control is performed, at least in part, said first or second user equipments. Alternatively the user equipment may send reports a handover/connection is initiated/controlled based on said report. | 06-13-2013 |
20130159407 | METHOD AND APPARATUS FOR TRAFFIC OFFLOADING BETWEEN DEVICES - Various methods for enabling D2D connections to exchange P2P data so as to reduce traffic on a network. One example method may comprise constructing a local topology of one or more mobile terminals. The method of this embodiment may also include determining that a mobile terminal of the one or more mobile terminals has initiated a peer to peer session. The method of this embodiment may also include determining, based on the local topology, one or more mobile terminals to act as one or more seeder devices for the peer to peer session. The method of this embodiment may also include causing the local topology to be transmitted to the mobile terminal that has initiated the peer to peer session. In some example embodiments, the mobile terminal is configured to use the local topology to initiate a device to device connection for the peer to peer session. | 06-20-2013 |
20130195073 | Low-Cost LTE System with Distributed Carrier Aggregation on the Unlicensed Band - A method for distributed carrier aggregation on unlicensed bands is described. The method includes tuning an antenna of a user equipment to a first carrier. The method includes transmitting, from an access point on a first carrier, information regarding a second carrier. The method also includes receiving, on the first carrier via the antenna, the information regarding the second carrier. The first carrier and the second carrier are in an unlicensed band. The method includes retuning the antenna to the second carrier and communicating data on the second carrier via the antenna. A maximum transmission power for the second carrier is based at least in part on a bandwidth of the second carrier. Apparatus and computer readable media are also described. | 08-01-2013 |
20130201954 | Device to Device and Connection Mode Switching - The exemplary embodiments of this invention provide, in one aspect thereof, a method that includes sending a mode switch command from a network access node to a first node of a pair of nodes operating in a device-to-device (D2D) communication mode. The method further includes receiving at least one acknowledgment of the reception of the mode switch command at the network access node, where the at least one acknowledgment is received from a second node of the pair of nodes. In one embodiment the mode switch command is an explicit mode switch command sent using layer 1 (L1) signaling to a master node of the pair of nodes. In another embodiment the mode switch command is an implicit mode switch command that includes a downlink grant to schedule the first node in the network, where the downlink grant contains a radio network identifier (RNTI) of the first node of the pair of nodes, and where the acknowledgment of the reception of the mode switch command is received from the second node of the pair of nodes and also from the first node of the pair of nodes. The exemplary embodiments also encompass user devices, such as mobile phones, that operate in the D2D mode in conjunction with the network access node. | 08-08-2013 |
20130203458 | POWER CONTROL FOR CARRIER AGGREGATION ON SHARED BANDS - There is provided, for example, an apparatus, which is caused to select a transmission power configuration for a communication with at least one user terminal taking place on component carriers of a carrier aggregation configuration within a shared band, wherein the selection is between a low transmission power configuration applying a transmission power below a predetermined power threshold without a listen-before-talk approach and a high transmission power configuration applying a transmission power of at least the predetermined power threshold; and upon detecting that the selected transmission power configuration needs to be informed, cause an indication of the selected transmission power configuration to the at least one user terminal and at least one secondary cell. | 08-08-2013 |
20130250778 | METHOD AND APPARATUS FOR DISTRIBUTED COMMUNICATIONS - A method, apparatus and computer program product are therefore provided according to an example embodiment to distributed communications. In this regard, a method includes causing an actual channel and a shadow channel to be configured to carry information for a logical channel. In some example embodiments, the logical channel is configured for at least one QCI class. The method of this embodiment may also include configuring an actual channel on a secondary link and a shadow channel on a primary link. The method of this embodiment may also include causing the shadow channel and the actual channel to be swapped such that the actual channel is configured on the primary link and the shadow channel is configured on the secondary link in an instance in which it is determined that the secondary link is no longer available. | 09-26-2013 |
20130252613 | METHOD AND APPARATUS FOR DYNAMIC VEHICULAR COMMUNICATIONS - A method, apparatus and computer program product are therefore provided according to an example embodiment to provide a cellular based ITS environment. In this regard, a method includes causing a secondary cell carrier (SCC) to be configured for a mobile terminal located in a vehicular target area. The method of this embodiment may also include causing the SCC to be activated by signaling a vehicular fast activation block (VFAB). The method of this embodiment may also include causing the SCC to deactivate based on a signal strength measurement, received from a road side unit (RSU), in an instance in which the signal strength measurement does not satisfy a predetermined threshold over a measurement period based on a timer. | 09-26-2013 |
20130265934 | RELAY CONTROL CHANNEL SEARCH SPACE CONFIGURATION - A method, apparatus, and computer-readable medium are provided for implementing a control channel on a backhaul link of a relay system. The method can include, for example, hybrid time division multiplexing and frequency division multiplexing a relay-physical downlink control channel and relay-physical downlink shared channel of a backhaul link for a relay node as a hybrid multiplexed set of symbols. The relay-physical downlink control channel can include a semi-statically configured searching space to be searched by the relay node. The method can also include transmitting the hybrid multiplexed set of symbols to the relay node. | 10-10-2013 |
20130316762 | METHOD AND APPARATUS FOR ESTABLISHING A DEVICE-TO-DEVICE CONNECTION - A method, apparatus and computer program product are provided to facilitate the establishment of device-to-device communications, such as non-cellular communications or cellular communications in a licensed exempt band. A method and apparatus receive cellular signals including one or more beacon transmission parameters, such as a beacon transmission interval and an identifier, and a beacon transmission status flag. The method and apparatus may also determine that the beacon transmission status flag is set to authorize beacon transmissions and then cause non-cellular beacon signals to be repeatedly transmitted in accordance with the one or more beacon transmission parameters. The method and apparatus may also cause a device-to-device connection to be established following transmission of the beacon signals. The device-to-device connection may be either a non-cellular device-to-device connection or a cellular device-to-device connection. | 11-28-2013 |
20140018010 | METHOD AND APPARATUS FOR FACILITATING DEVICE-TO-DEVICE COMMUNICATION - A method is provided for facilitating device-to-device communication. The method may include causing a message to be sent to a first device to trigger the first device to transmit a reference signal to transmit a reference signal. The method may further include causing a request for a channel quality indication to be sent to a second device. The request may indicate that the channel quality indication is to be based on measurement of the reference signal. The method may additionally include receiving the channel quality indication in response to the request. The channel quality indication being indicative of a link quality between the first device and the second device. The method made also include determining based on the received channel quality indication whether to cause establishment of a device-to-device link between the first device. A corresponding apparatus and computer program product are also provided. | 01-16-2014 |
20140036742 | METHOD AND APPARATUS FOR PROVIDING FOR DISCONTINUOUS RECEPTION VIA CELLS HAVING DIFFERENT TIME DIVISION DUPLEX SUBFRAME CONFIGURATIONS - Methods and apparatus are disclosed that facilitate discontinuous reception via a primary cell and one or more secondary cells that have different TDD UL/DL subframe configurations including overlapping subframes, such as in an instance in which a UL subframe of a secondary cell overlaps with a corresponding DL subframe of the primary cell. A method may define an active state of a primary cell to be larger than an active state of a secondary cell in a TDD network that supports carrier aggregation. The method may also provide for discontinuous reception via the primary cell and the secondary cell in accordance with different TDD UL/DL subframe configurations and also in accordance with the respective active states of the primary and secondary cells. | 02-06-2014 |
20140044000 | LTE Carrier Aggregation Configuration on TV White Space Bands - An apparatus, method and computer program product comprise controlling cellular network based communication in a primary cell on a frequency band related to the cellular network and by using an uplink and downlink configuration specific to the primary cell; controlling communication in a secondary cell on a frequency band related to a television white space channel and by using an uplink and downlink configuration specific to the secondary cell; measuring radio interference on a temporarily set uplink related carrier on the secondary cell based on information on the temporarily set uplink related carrier received on a downlink related carrier on the primary cell; and reporting results of radio interference measurement via the primary cell. | 02-13-2014 |
20140050107 | ERROR PREVENTION IN DYNAMIC UPLINK/DOWNLINK CONFIGURATION CHANGE FOR TIME DIVISION DUPLEX - Method and apparatus which prevents or at least significantly reduces errors during dynamic TDD UL/DL configuration changes. Received downlink time division duplex subframes are monitored during a predetermined time window, wherein at least a portion of the subframes includes an uplink/downlink configuration indication. In response to not detecting an uplink/downlink configuration indicated by any of the uplink/downlink configuration indications in the monitored downlink time division duplex subframes, an average of the monitored uplink/downlink configuration indications is calculated. The calculated average is utilized in determining a time division duplex uplink/downlink configuration to be used. | 02-20-2014 |
20140071922 | METHOD AND APPARATUS FOR CONFIGURING A SOUNDING REFERENCE SIGNAL FOR A SEGMENT CARRIER - Methods, apparatus and computer program products configure a sounding reference signal (SRS) for a segment carrier that serves as a contiguous bandwidth extension of a component carrier, such as a component carrier that is backwards compatible with prior releases of a mobile terminal. In the context of a mobile terminal, the method receives a triggering message that identifies respective configurations of the SRS for the component carrier and the associated segment carrier. The configuration of the SRS for the component carrier is different than the configuration of the SRS for the segment carrier. The method also causes the SRS to be transmitted in accordance with the respective configurations identified by the triggering message via uplink subframes of the component carrier and the segment carrier. | 03-13-2014 |
20140073326 | METHOD AND APPARATUS FOR A CELLULAR ASSISTED INTELLIGENT TRANSPORTATION SYSTEM - A method, apparatus and computer program product are therefore provided according to an example embodiment to provide a cellular based ITS environment. The cellular based ITS environment may be configured based on LTE based interfaces. In this regard, a method includes receiving configuration information from a first access point, wherein the configuration information defines an ITS target area comprising at least the first access point and a first RSU. A method also includes receiving an ITS paging message from the first access point. A method also includes causing a reselection of the first RSU while in the communications range of the first access point in the ITS target area and in response to the received ITS paging message. | 03-13-2014 |
20140087748 | Methods and Apparatus for Managing Wireless Communication Using Unlicensed Frequency Bands - Systems and techniques for managing the use of industrial-scientific-medical bands for cellular network communication. An apparatus comprises a processing system and a memory storing a set of program instructions. The processing system is configured to cause the apparatus to receive channel information from a UE reporting the control of an industrial-scientific-medical (ISM) band channel by the UE and cause the apparatus to schedule a communication session with the UE over the channel, with the channel being configured and activated as an ISM secondary component carrier (SCC). The apparatus may further request one or more user equipments (UEs) to report their wireless fidelity (WiFi) capability and request user equipments having WiFi capability to compete for the wireless medium and report occupation of the wireless medium in the form of a request to send command, to which the apparatus responds with a clear to send command. | 03-27-2014 |
20140120936 | Wireless Communication Systems and Methods - Methods and devices arranged to control access to a cell in a communication network. One embodiment includes a processing system arranged to cause an apparatus to receive a plurality of Closed Subscriber Group identifiers (CSG IDs) assigned to the cell, select and transmit a first CSG ID from the plurality of CSG IDs on the basis of a first load condition on the cell, and select and transmit a second, different, CSG ID from the plurality of CSG IDs on the basis of a second, different, load condition on the cell. | 05-01-2014 |
20140122957 | Method, an Apparatus and a Network Element for Dynamical TDD Configuration - A method, an apparatus for wireless communication and a network element for handling the retransmission of a failed packet during the TDD configuration change. The method comprises receiving at least one failed packet in a first TDD configuration; receiving information to change from the first TDD configuration to a second TDD configuration; sending a repeat request for said at least one failed packet; and receiving a retransmission of the failed packets of the first TDD configuration in the second TDD configuration. | 05-01-2014 |
20140126494 | BROADCAST CHANNEL CONFIGURATION IN WIRELESS COMMUNICATIONS - Measures for a broadcast channel configuration of a standalone carrier may exemplarily include measures for configuring a broadcast channel of a carrier in one of a predetermined number of subsets of physical resource blocks in a system bandwidth on the basis of a cell configuration, wherein each subset includes the same prescribed number of physical resource blocks and the predetermined number of subsets are distributed in the frequency domain to cover the system bandwidth with the center of the system bandwidth being located in the center of a middle subset, and measures for scheduling common control signaling in the one subset of physical resource blocks in accordance with the configured broadcast channel of the carrier. | 05-08-2014 |
20140128085 | COMMON SEARCH SPACE CONFIGURATION OF A CARRIER - Measures for a common search space configuration of a standalone carrier may exemplarily include measures for configuring a common search space for an enhanced physical downlink control channel of a carrier, and measures for scheduling a master information block of common control signaling on a physical broadcast channel of the carrier, wherein said master information block indicates a configuration of the common search space which defines a set of pairs of physical resource blocks in the common search space. | 05-08-2014 |
20140177557 | Method and Apparatus for Cell Activation - In some examples, the method, apparatus and computer program product as described herein is configured for cell Discontinuous Transmission. In this regard, a method is provided that includes receiving an indication of a discovery of a cell by a communications device. The method of this embodiment may also include determining the cell based on the indication. The method of this embodiment may also include causing the cell to transition to an activated state from a dormant state. | 06-26-2014 |
20140192733 | METHOD AND APPARATUS FOR EXTENDING CONTROL SIGNALLING IN AN LTE NETWORK - A method for a wireless network node to support an extended control signaling is provided. The method comprises configuring a control signaling message over extended control symbols on a layer 1 (L1) downlink control channel, the control signaling message encoded over an increased aggregation of control channel elements (CCEs) in a time domain; placing the controlling signaling message in a designated set of subframes on the L1 downlink control channel; indicating a support for the extended control signaling to one or more UEs; indicating to the one or more UEs a position of the designated set of the subframes in a spare field of the Master Information Block (MIB); and transmitting the control signaling message to the one or more UEs over the L1 downlink control channel. | 07-10-2014 |
20140219237 | Method and Apparatus for Establishing a Time-Frequency Reference Signal Pattern Configuration in a Carrier Extension or Carrier Segment - Methods, apparatus and computer program products are provided for establishing a time-frequency reference signal pattern configuration in a carrier extension or a carrier segment, such as for cell-specific reference signals (CRS) and/or demodulation reference signals (DM RS). One method includes receiving information regarding a time-frequency reference signal pattern configuration in a carrier extension or carrier segment. The time-frequency reference signal pattern configuration defines a subframe to include a reference signal based upon a time density parameter and defines a resource element to be utilized within the subframe based upon a frequency density parameter. This method also includes receiving reference signals pursuant to the time-frequency reference signal pattern configuration such that reference signals have a coherence time T | 08-07-2014 |
20140348094 | Method and Apparatus for Synchronization Mechanisms on Un-Licensed Band - A method for synchronizing channels on unlicensed bands is described. The method includes determining whether a SCC channel has started to be used by a first network. The SCC channel is a CA channel shared with at least one other network. In response to determining that the SCC channel has been started to be used by the first network, the UE determines an off duration describing a period since a previous SCC channel ON period. A given channel ON period is a continuous period of use of the given channel by the first network, The method also includes, in response to determining that the off duration is less than a minimum threshold duration, performing fine synchronization based on CRS tracking on the SCC channel using course synchronization parameters of the previous SCC channel ON period. Apparatus and computer readable media are also described. | 11-27-2014 |
20140378157 | Methods and Apparatuses for Provision of a Flexible Time Sharing Scheme on an Unlicensed Band of a System - A method, apparatus and computer program product are provided facilitating flexible time sharing among systems. A method and apparatus may generate a secondary component carrier transmission plan including planned on and off durations. The planned on durations correspond to a time period for an apparatus and devices to communicate via an unlicensed band of the secondary component carrier. The planned off durations correspond to a time interval in which the devices may deactivate from the unlicensed band or remain disconnected from the unlicensed band. The method and apparatus may also enable provision of the plan to the devices via a licensed band of a primary component carrier and detecting a medium of the unlicensed band prior to the expiration of the time period to determine whether the medium is available in order to decide whether to turn on transmissions to the unlicensed band after one of the planned off durations. | 12-25-2014 |
20150031377 | WIRELESS COMMUNICATION SYSTEM AND METHOD - Embodiments of the invention provide methods, devices and computer programs arranged to control access to a Secondary Cell Carrier (SCC) by a user terminal. The user terminal having a first functional state in which the user terminal is arranged to monitor for a broadcast channel associated with the SCC, and a second functional state, different to said first functional state. One embodiment comprises an apparatus comprising a processing system arranged to cause the apparatus to: receive data indicative of a plurality of operational modes assigned to the SCC; and transmit a signalling message comprising data indicative of said plurality of operational modes for receipt by the user terminal, whereby to configure the user terminal into the first functional state, wherein the user terminal is arranged to selectively request access to resources of the SCC on the basis of a comparison between data contained in said signalling message and data contained in a transmission received on the broadcast channel. | 01-29-2015 |
20150071146 | Aperiodical Discovery Channel Design for Small RRHS - An apparatus and a method is provided by which it is determined that at least one user equipment should perform detection and/or measurements with respect to at least one network control node, the at least one network control node is instructed to send a predetermined aperiodic signal to the at least one user equipment, and the at least one user equipment is instructed to detect the predetermined aperiodic signal. | 03-12-2015 |
20150280894 | METHODS, APPARATUS AND COMPUTER PROGRAMS FOR HALF-DUPLEX FREQUENCY DIVISION DUPLEXING - A wireless device is operated such that transmission and reception by the wireless device uses half-duplex frequency division duplexing. The wireless device transmits in an uplink subframe at a first frequency and receives in a downlink subframe at a second frequency. The uplink subframe and downlink subframe occur at different times. The frame structure that is used has a special subframe ( | 10-01-2015 |
20150296463 | POWER CONTROL FOR CARRIER AGGREGATION ON SHARED BANDS - There is provided, for example, an apparatus, which is caused to select a transmission power configuration for a communication with at least one user terminal taking place on component carriers of a carrier aggregation configuration within a shared band, wherein the selection is between a low transmission power configuration applying a transmission power below a predetermined power threshold without a listen-before-talk approach and a high transmission power configuration applying a transmission power of at least the predetermined power threshold; and upon detecting that the selected transmission power configuration needs to be informed, cause an indication of the selected transmission power configuration to the at least one user terminal and at least one secondary cell. | 10-15-2015 |
20150351063 | SCH-LINKED RS CONFIGURATIONS FOR NEW CARRIER TYPE - An apparatus and a method are provided, by which a reference signal to be used for channel estimation is sent (e.g., by a base station) or received (e.g., by a user equipment), wherein the reference signal is placed in one subframe in a group of consecutive subframes of a radio frame, the subframe being determined based on the cell identity. | 12-03-2015 |