Patent application number | Description | Published |
20100011110 | Mobile terminal to media server connection apparatus, system, and method - An apparatus, system, and method for a communication network that includes base stations, mobile terminals, and media servers. A base station may receive enable a device-to-device connection between a media server and a mobile terminal. The mobile terminal and the media server may establish the enabled device-to-device connection to create an underlay network within the cellular network, the underlay network including the mobile terminal, the media server, and the device-to-device connection. In some embodiments, the mobile terminal and the media server each include a device-to-device radio that is used to establish and maintain the device-to-device connection. | 01-14-2010 |
20100040029 | Apparatus, system, and method for obtaining local connectivity settings - An apparatus, system, and method for a communication network that includes a mobile device, a target device, and a connection settings server. The mobile device is configured to transmit a request for device-to-device connection settings data to the connection settings server, the connection settings server is configured to receive the request, determine appropriate device-to-device connection settings data, and transmit the appropriate device-to-device connection settings data to the mobile device, the mobile device is further configured to receive the appropriate device-to-device connection settings data and establish a device-to-device connection with the target device, wherein the establishing of the device-to-device connection is facilitated by the device-to-device connection settings data. | 02-18-2010 |
20100093364 | METHOD AND APPARATUS FOR PROVIDING INTERFERENCE MEASUREMENTS FOR DEVICE-TO-DEVICE COMMUNICATION - An approach for providing interference measurements for device-to-device communication is disclosed. A logic generates a control signal to instruct a plurality of stations to perform measurement relating to interference or path loss by the stations. The logic then receives measurement information from the stations and determines, based on the measurement information, whether resources are to be scheduled to provide direct communication between two of the stations. | 04-15-2010 |
20110103317 | METHOD AND APPARATUS FOR SYNCHRONIZING RESOURCES FOR COORDINATED NETWORK DEPLOYMENT - In accordance with an example embodiment of the present invention, a method comprises mapping a first transmission channel to an existing channel of a network element; switching the network element to a secondary communication mode which is one of a secondary transmission mode and a secondary receiving mode; signaling at least one neighbor network element in the secondary communication mode to associate the network element with the at least one neighbor network element; and receiving a first signal on the mapped first transmission channel from the at least one associated network element. | 05-05-2011 |
20110106952 | METHODS, APPARATUSES AND COMPUTER PROGRAM PRODUCTS FOR PROVIDING COORDINATION OF DEVICE TO DEVICE COMMUNICATION - An apparatus for providing coordination of device to device communication may include a processor. The processor is configured to communicate a request for a resource allocation to a network communication node ( | 05-05-2011 |
20120140706 | Inter-cell Interference Coordination of Multiple Transmission Ranks - Inter-cell interference coordination of multiple transmission ranks can be accomplished by various methods and apparatuses. For example, a method can include defining indexing of resources for which a base station will restrict a maximum rank for transmission. The method can also include informing a neighboring base station of the first base station about the resources for which the base station will restrict the maximum rank of transmission. | 06-07-2012 |
20120281670 | Method and Apparatus for Interference-Resistant Wireless Communications - In accordance with an example embodiment of the present invention, an apparatus is disclosed that includes a resource module configured to allocate a first resource and a second resource that are at least partially synchronized in at least one of a time domain and a frequency domain in such a way that the first resource and the second resource share at least one of an overlapping frequency band and a same time slot. The apparatus also includes a transceiver configured to transmit a first signal on the first resource and receive a second signal on the second resource, wherein at least one of the first signal and the second signal is at least partially orthogonalized with respect to a third signal that is transmitted on one of the first resource and the second resource from a neighbor network device. | 11-08-2012 |
20130163519 | REDUCED CELL ID REASSIGNMENTS IN MULTI-BAND LOCAL AREA - A method, apparatus, and computer program is provided which allows an access point that is operating in multiple bands to be able to have a conflict-free cell identity when hopping to different bands. A first message is received, at an access point, indicating that a reassignment of cell identities has been triggered in a first band. A second message is transmitted, at the access point, indicating if the access point will participate in the reassignment. | 06-27-2013 |
20130258989 | Apparatus and Method to Set a Control Channel Configuration in a Communication System - An apparatus, method and system to set a control channel configuration in a response to an indication of interference in a communication system. In one embodiment, an apparatus includes a processor | 10-03-2013 |
20130281143 | METHOD AND APPARATUS FOR INTERFERENCE-AWARE WIRELESS COMMUNICATIONS - In accordance with an example embodiment of the present invention, a method comprises receiving at a controlling node an interference measurement report from a first node; determining from a transmission schedule a transmit activity by a second node during an interference measurement period associated with the interference measurement report; estimating a contributing interference from the transmit activity by the second node during the measurement period; and causing an adjustment to the contributing interference. | 10-24-2013 |
20140078934 | DELAY FEEDBACK FOR COORDINATED MULTI-POINT TRANSMISSION - In accordance with the exemplary embodiments of the invention there is at least a method and an apparatus to perform operations including estimating, with a user equipment, one or more delays between receipts at the user equipment of transmissions from a plurality of transmission nodes ( | 03-20-2014 |
20140313948 | FRAME STRUCTURE AND SIGNALING ARRANGEMENT FOR INTERFERENCE AWARE SCHEDULING - Frame structures and signaling arrangements for interference aware scheduling may be applicable to a local area radio system to complement existing wide area cellular systems, like GSM/UMTS/HSPA/LTE. In certain embodiments a method is provided including preparing a frame for transmission in a wireless communication system. The method can also include incorporating an interference report into the frame. The interference report is directly associated with a corresponding resource. The method can further include transmitting the interference report within the frame in the wireless communication system. | 10-23-2014 |
20140328294 | METHOD AND APPARATUS FOR USING RADIO CHANNELS - In a non-limiting and example embodiment, a method is provided for controlling usage of prioritized radio channels, comprising: detecting ( | 11-06-2014 |
20140335875 | DEVICE TO DEVICE BEACON, USER EQUIPMENT DISCOVERY, AND RESOURCE ALLOCATION - Device discovery may be important in a variety of communication systems including, for example, wireless communication systems. Thus, certain embodiments may provide a device to device beacon design that may provide for efficient interference management and resource allocation. For example, a method may include preparing a proximity communication request including information about a device to device communication state of a discovered user equipment or resource usage of the discovered user equipment. The method may also include transmitting the proximity communication request to a base station. | 11-13-2014 |
20150050927 | SIGNALING SUPPORT FOR DEVICES WITH MULTIPLE AND/OR FLEXIBLE FORM FACTORS - Systems, methods, apparatuses, and computer program products for signaling support for devices with multiple and/or flexible form factors are provided. One method includes determining, by a device having multiple forms and associated with a network, a current form or a change in the form of the device, determining new parameters according to the determined current form of the device, and reporting the new parameters to the network. | 02-19-2015 |
Patent application number | Description | Published |
20080311939 | Acknowledgment aided space domain user scheduling for multi-user mimo - An apparatus includes a modulator configured to modulate a plurality of data sequences, where individual ones of the plurality of data sequences correspond to individual ones of a plurality of user equipment; a transmitter configured for operation with a plurality of antennas and further configured to simultaneously transmit the modulated data sequences to the plurality of user equipment; and a receiver configured to receive one of an acknowledgment or a non-acknowledgment indication from individual ones of the plurality of user equipment indicating success or failure, respectively, of an individual one of the user equipment correctly receiving a corresponding transmitted data sequence. The apparatus additionally includes a controller that is configured to respond to a predetermined number of non-acknowledgment indications being received from a particular one of the user equipment, for a particular one of the transmitted data sequences, to retransmit the corresponding data sequence only to the particular user equipment. Corresponding methods and computer programs are also disclosed. | 12-18-2008 |
20090325625 | Method, apparatus and computer program for power control to mitigate interference - A network determines that a first radio node communicating on a radio resource with a second radio node is interfering with a third radio node communicating on the radio resource with the network. The network manages the interference by controlling transmit power of at least one of the first radio node and the third radio node. It may be by sending a command that indicates an amount by which the first or second radio node is to decrease its transmit power; and/or that indicates an amount by which the third radio node is to boost its transmit power. The network can measure a sounding signal it triggers from the first radio node, measure and compare to a threshold that guarantees a QoS for the third radio node, and compute appropriate backoff or boost values. The first and second radio nodes may be using device-to-device communications or a femto network. | 12-31-2009 |
20100009675 | Setup of device-to-device connection - Disclosed are apparatus, methods and computer programs to establish device-to-device communications in a wireless network. A method includes sending an initiation message from a first device to initiate device-to-device communication with a second device; receiving a message indicating a request for setting up radio resources for device-to-device communication; sending a message to the second device, the message including a request to set up resources for device-to-device communication and, in response to establishing device-to-device communication with the second device using the resources, sending an acknowledgment that device-to-device communication is established. | 01-14-2010 |
20100261469 | APPARATUS AND METHOD FOR MODE SELECTION FOR DEVICE-TO-DEVICE COMMUNICATIONS - In accordance with an example embodiment of the present invention, a method is disclosed that comprises measuring a first link quality of a first link based at least in part on a first power value; measuring a second link quality of a second link based at least in part on a second power value; and determining a suitable device-to-device (D2D) mode for a D2D connection based at least in part on the first link quality, the second link quality, and one or more D2D user equipment (UE) constraints. | 10-14-2010 |
20110128865 | Method and Apparatus for Power Saving Operations in Wireless Network Elements - In accordance with an example embodiment of the present invention, a method comprises determining at a base station an activity level, and selecting an availability mode based at least in part on the activity level, wherein the availability mode is one of a full-availability mode, a semi-availability mode and a minimum-availability mode. The method also comprises configuring radio resources for at least the minimum-availability mode and switching to the selected availability mode. | 06-02-2011 |
20110222398 | PROTOCOL WITH IMPROVED SPATIAL REUSE - According to an embodiment, a method, apparatus, and computer readable medium can provide an efficient mechanism to improve data rates of nodes suffering high interference without sacrificing performance of nodes that do not need interference-free channels to communicate. A node can receive two or more RTS packets and identify the RTS packet corresponding to its own cell, as well as RTS packets belonging to interferers. Based on the interference level estimated from the RTS packets, the node can decide if the channel needs to be interference-free for the intended transmission or if the current level of interference is acceptable. According to the embodiment, there can be two or more different types of CTS packets. A node can decide which type of CTS packet to transmit based on the information, signal level, interference level, or a combination therein, of at least two RTS channels, and based on measurements performed on these RTS channels, or other channels. | 09-15-2011 |
20110268004 | ENABLING DEVICE-TO-DEVICE COMMUNICATION IN CELLULAR NETWORKS - According to one general aspect, a method may include communicating, by a first apparatus, with at least a second apparatus via a device-to-device communication link. In various embodiments, the method may also include receiving resource allocations, from a base station. In some embodiments, the method may include determining, based at least partly on the received resource allocations, which resources are allocated to at least the second apparatus for communication with the base station. In various embodiments, the method may include based at least partly upon the resource allocations, determining when to perform direct device-to-device communication, by the first apparatus, with the second apparatus. | 11-03-2011 |
20120257515 | Reference signal port discovery involving transmission points - A method includes receiving information indicating one or more sets of reference signal patterns from a first transmission point, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; measuring the channel quality for the indicated sets of reference signal patterns; and reporting indications of the measured channel quality for the indicated one or more sets of reference signal patterns to the first transmission point. Another method includes transmitting information indicating one or more sets of reference signal patterns from a first transmission point to a user equipment, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; and receiving from the user equipment indications of measured channel quality for the indicated one or more sets of reference signal patterns. | 10-11-2012 |
20130136013 | Handshaking Protocol Using Bursts in OFDMA Frame Structure - One embodiment is directed to a method, apparatus, and/or computer program for reducing interference in a local area radio system. The method may include selecting, by a first network node, time/frequency resources to transmit data, transmitting request to send (RTS) bursts to a second network node on the selected resources, and listening for clear to send (CTS) bursts. The method may further include separating received clear to send bursts, decoding the clear to send bursts received from the second network node, determining whether data is allowed to be transmitted based on the received clear to send bursts, and transmitting the data to the second network node when it is determined that the data can be transmitted. The request to send and/or clear to send bursts may be encoded with orthogonal codes when there are multiple cells in a neighborhood of the first network node and/or the second network node. | 05-30-2013 |
20130148515 | Channel Measurements Supporting Coordinated Multi-Point Operation - An aspect of this invention is a definition of a set of reused channel state information reference signal (CSI-RS) resources among transmission points, which can be lower power nodes, for intra-cell coordinated multi-point (CoMP) operation. Separate CSI-RS resources are defined for each transmission point for sporadic separate measurements to be made by user equipment. The sporadic measurements may be implemented with low additional overhead, and are used for generating potentially simplified CSI feedback to an evolved NodeB that enables adapting shared channel reuse and also potentially making related channel quality indicator (CQI) compensation. | 06-13-2013 |
20140036713 | REFERENCE SIGNAL PORT DISCOVERY INVOLVING TRANSMISSION POINTS - A method includes receiving information indicating one or more sets of reference signal patterns from a first transmission point, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; measuring the channel quality for the indicated sets of reference signal patterns; and reporting indications of the measured channel quality for the indicated one or more sets of reference signal patterns to the first transmission point. Another method includes transmitting information indicating one or more sets of reference signal patterns from a first transmission point to a user equipment, wherein at least one of the indicated one or more sets of reference signal patterns corresponds to one of one or more other transmission points; and receiving from the user equipment indications of measured channel quality for the indicated one or more sets of reference signal patterns. | 02-06-2014 |
20140036849 | Joint Transmission CoMP with Single Carrier Cell Aggregation - A method, apparatus, and computer program determine each transmission point participating in a joint cooperative multi-point transmission to a UE, send a downlink message to the UE which identifies each of the transmission points, and which schedules for the UE downlink resources on which each of the transmission points are to send downlink data to the UE, and send a transmission to the UE on one of the downlink resources in conjunction with each other transmission point's transmission to the UE. A method, apparatus, and computer program receive a downlink message which identifies each of transmission points participating in a joint cooperative multi-point transmission with a UE and which schedules downlink resources on which the UE is to receive downlink data from the transmission points for the joint transmission, and receive, at the UE, a transmission on one of the downlink resources in conjunction with the other transmission point's transmission. | 02-06-2014 |
20140038590 | SETUP OF DEVICE TO DEVICE CONNECTION - Disclosed are apparatus, methods and computer programs to establish device-to-device communications in a wireless network. A method includes sending an initiation message from a first device to initiate device-to-device communication with a second device; receiving a message indicating a request for setting up radio resources for device-to-device communication; sending a message to the second device, the message including a request to set up resources for device-to-device communication and, in response to establishing device-to-device communication with the second device using the resources, sending an acknowledgment that device-to-device communication is established. | 02-06-2014 |
20140133366 | APPARATUS AND METHOD FOR UPLINK POWER CONTROL FOR VARIABLE INTERFERENCE CONDITIONS - According to an example embodiment of this application, a method may include by a processor, processing communication with a network element, the communication comprising one or more frames, wherein each frame comprises at least two subframes; receiving a signaling indicating definition of subframe groups; receiving a power control command for controlling a transmission power; and applying the power control command. | 05-15-2014 |
20140254398 | Methods And Apparatus for Internetworking - Systems and techniques for data traffic management are described. A base station providing data communication services to user devices and capable of transferring traffic to one or more wireless network access points receives data queuing latency information relating to data queuing latency experienced by the one or more user devices, access points, or both. The base station makes determinations relating to offloading of traffic to access points, such as from wireless cellular network frequencies to wireless local area network resources, based on the latency information. | 09-11-2014 |
20150078216 | SET UP AND MAINTENANCE FRAMEWORK FOR FLEXIBLE TIME DIVISION DUPLEX OPERATION IN HETEROGENEOUS NETWORK - One embodiment is directed to a method for operating base stations in a heterogeneous network. The method may include receiving, by a first base station, an indication for a second base station to use flexible time division duplex mode ( | 03-19-2015 |
Patent application number | Description | Published |
20110261728 | CHANNEL RESERVATION IN TIME DIVISION DUPLEX WIRELESS COMMUNICATION SYSTEM - Channel reservation in time division duplex for devices in systems involving, for example user devices and access points, may be accomplished using channel reservation request messages, such as request-to-send (RTS) messages and channel reservation grant messages, such as clear-to-send (CTS) messages. A method for channel reservation may include preparing a frame including at least one channel reservation request message and at least one channel reservation grant message. The preparing may include multiplexing the at least one channel reservation request message and the at least one channel reservation grant message at least by frequency-division multiplexing. The method may also include transmitting the frame from a first node to a second node, wherein the channel reservation request message and the channel reservation grant message relate to communications between the first node and the second node. | 10-27-2011 |
20120099540 | INTERFERENCE SUPPRESSION DURING DEVICE-TO-DEVICE COMMUNICATIONS - A method is disclosed that includes selecting one or more terminals involved in a device-to-device communication to which interference caused by a transmission to one or more other terminals should be suppressed, and choosing a number of degrees of freedom from a predetermined number of degrees of freedom to be used to suppress interference towards the selected one or more terminals. The method also includes using the remaining degrees of freedom from the predetermined number to increase signal quality to the one or more other terminals and performing precoding based on the chosen number of degrees of freedom and the remaining degrees of freedom. The method further includes, using at least the performed precoding, transmitting information to the one or more other terminals. Apparatus and programs/program products are also disclosed. | 04-26-2012 |
20120207099 | DL control channel structure enhancement - An apparatus includes one or more processor and one or more memories including computer program code. The one or more memories and the computer program code are configured to, with the one or more processors and in response to execution of the computer program code, cause the apparatus to perform at least the following: accessing in an enhanced downlink control region of a downlink subframe a downlink control channel message corresponding to the apparatus, wherein the downlink control channel message corresponding to the apparatus occupies two or more physical resource blocks contiguous in one or both of time and frequency; and accessing or not accessing a portion specific to the apparatus of a physical downlink shared channel in the downlink subframe, depending in least in part on the determined downlink control channel message. Additional apparatus, methods, and computer products are disclosed. | 08-16-2012 |
20130136013 | Handshaking Protocol Using Bursts in OFDMA Frame Structure - One embodiment is directed to a method, apparatus, and/or computer program for reducing interference in a local area radio system. The method may include selecting, by a first network node, time/frequency resources to transmit data, transmitting request to send (RTS) bursts to a second network node on the selected resources, and listening for clear to send (CTS) bursts. The method may further include separating received clear to send bursts, decoding the clear to send bursts received from the second network node, determining whether data is allowed to be transmitted based on the received clear to send bursts, and transmitting the data to the second network node when it is determined that the data can be transmitted. The request to send and/or clear to send bursts may be encoded with orthogonal codes when there are multiple cells in a neighborhood of the first network node and/or the second network node. | 05-30-2013 |
20130148515 | Channel Measurements Supporting Coordinated Multi-Point Operation - An aspect of this invention is a definition of a set of reused channel state information reference signal (CSI-RS) resources among transmission points, which can be lower power nodes, for intra-cell coordinated multi-point (CoMP) operation. Separate CSI-RS resources are defined for each transmission point for sporadic separate measurements to be made by user equipment. The sporadic measurements may be implemented with low additional overhead, and are used for generating potentially simplified CSI feedback to an evolved NodeB that enables adapting shared channel reuse and also potentially making related channel quality indicator (CQI) compensation. | 06-13-2013 |