Abstract: A method of scheduling a signal transmission to a user equipment in a transmitter system, said transmitter system comprising a plurality of spatially distributed transmitters for transmitting signals to said user equipment and a base station for controlling said plurality of spatially distributed transmitters, said method comprising, for said base station, the acts of obtaining for the user equipment a quantization vector estimating the state of the channel between the transmitter system and the user equipment, obtaining for the user equipment a weighting factor representing an attenuation of the channel between the user equipment and at least one of the plurality of spatially distributed transmitters, and scheduling a signal transmission to the user equipment using the obtained quantization vector weighted with the obtained weighting factor.
Abstract: A user equipment includes a plurality of antennas to receive downlink signals from a base station, a plurality of receiver circuits each coupled to a respective one of the plurality of antennas to process the received downlink signals, an SIR estimation unit to estimate a quality of the received downlink signals, a power loop controller to generate transmit power control commands based on the estimated quality of the received downlink signals, the transmit power control commands being directed to the base station to adjust a power of the downlink signals and a diversity controller to selectively activate and deactivate one or more of the receiver circuits depending on the estimated quality of the received downlink signals.
Type:
Grant
Filed:
July 31, 2013
Date of Patent:
April 5, 2016
Assignee:
Intel Deutschland GmbH
Inventors:
Herbert Dawid, Thorsten Clevorn, Edgar Bolinth
Abstract: A mobile communication method according to the present invention includes a step of transmitting, by a mobile management node MME, “Measurement Configuration #1” for instructing to measure and report a desired radio quality to a radio base station eNB#1 that manages a cell #1 when it is detected that a mobile station UE has moved into the cell #1 that lies inside a measurement-target area, and a step of transmitting, by the radio base station eNB#1, “RRC Connection Reconfiguration” including the “Measurement Configuration #1” to the mobile station UE.
Abstract: Methods, systems, and computer programs are presented for switching a network packet. One method includes operations for receiving a packet having a media access control (MAC) address, and for switching the packet by a first packet switching device (PSD) when the MAC address is present in a first memory. Further, the method includes operations for transferring the packet to a second PSD when the MAC address is absent from the first memory and present in a second memory associated with the second PSD, and for transferring the packet to a third PSD when the MAC address is absent from the first memory and the second memory.
Type:
Grant
Filed:
March 15, 2013
Date of Patent:
April 5, 2016
Assignee:
Pluribus Networks, Inc.
Inventors:
Sunay Tripathi, Robert James Drost, Chih-Kong Ken Yang
Abstract: A method and device for operating in an idle mode for Machine To Machine (M2M) communication are provided. A M2M device receives a paging message from a base station. The paging message includes a M2M group identifier that identifies a M2M group to which the M2M device belongs. The M2M device monitors an uplink resource allocation beginning from an offset during a monitoring duration.
Type:
Grant
Filed:
August 8, 2012
Date of Patent:
March 29, 2016
Assignee:
LG Electronics Inc.
Inventors:
Gi Won Park, Young Soo Yuk, Jeong Ki Kim
Abstract: A wireless service of a first type is scanned. A first station associated with the first type is selected. A first indicator of expected service conditions associated with the first station is received. Based on the first indicator, a wireless service of a second type is scanned. A second station associated with the second type is selected. A second indicator of expected service conditions associated with the second type is received. Based on the first indicator and the second indicator, one of the first type and second type is selected to receive wireless service.
Abstract: A method, a base station and a system for managing resources belong to the field of communication technologies. In an embodiment of the present invention, the base station decodes the uplink data or the acknowledgement information sent by the user equipment according to the format of the periodic indication information comprised in the uplink data or the acknowledgement information, determines that the uplink data or the acknowledgement information sent by the user equipment comprises the periodic indication information when the decoding is successful, and then validates the periodic resources corresponding to the periodic indication information comprised in the uplink data or the acknowledgement information.
Abstract: In a method for generating a preamble of a data unit for transmission via a communication channel, an indication of a first number of spatial or space-time streams is included in a first field of the preamble. The first number of spatial or space-time streams corresponds to transmission of the data unit to a first receiver. One or more training sequences are included in a second field of the preamble. The preamble is formatted such that the first field of the preamble will be transmitted prior to the second field of the preamble being transmitted.
Type:
Grant
Filed:
October 22, 2010
Date of Patent:
March 22, 2016
Assignee:
MARVELL WORLD TRADE LTD.
Inventors:
Hongyuan Zhang, Raja Banerjea, Yong Liu, Mao Yu
Abstract: A method that incorporates teachings of the subject disclosure may include, for example, obtaining data relating to a set of collision events on a shared channel on a wireless network according to a contention-based access protocol in which a plurality of terminals attempt to access the channel contemporaneously. A probability of collision in the channel is estimated and a probability distribution of time intervals between access attempts is generated based on the estimated probability of collision. Empirical and theoretical cumulative distribution functions for the time intervals are calculated, and compared to identify a malfunctioning terminal not operating in accordance with the protocol. Other embodiments are disclosed.
Abstract: An apparatus and method of determining an allocation of data across multiple data communications networks. A respective characteristic of the first data communications network and the second data communication network are determined based on receiving a respective first and second portion of a data set sent through respective channels to a receiver. Based on determining these respective characteristics and based upon the respective characteristics, an allocation of data between the first data communications network and the second communications network is determined such that the allocation satisfies at least one data transfer performance requirement associated with the data set.
Type:
Grant
Filed:
November 7, 2014
Date of Patent:
March 1, 2016
Assignee:
BlackBerry Limited
Inventors:
Sanigepalli V. Praveenkumar, Ritwik Dubey, Manish Bansal
Abstract: A wireless data access system is provided to ameliorate bursty traffic occurring in a radio communications link such as a WiFi, WiMAX, 3G or cellular telephone link to a wireless network access device. A data traffic event is detected relating to traffic in the link. The traffic event may be a traffic burst exceeding a predetermined threshold. Based on detecting the data traffic event, a free-space optical communications link is established to the network access device to handle the traffic burst. The established radio link may be used to set-up and coordinate the free-space optical link.
Abstract: One embodiment of the present invention provides a switch that facilitates name services in a virtual cluster switch. The switch includes a name service database indicating at least one media access control (MAC) address learned at a second switch. The switch also includes a control mechanism. During operation, the control mechanism distributes information on a locally learned MAC address to the second switch. In addition, the control mechanism receives information on a MAC address learned at the second switch.
Type:
Grant
Filed:
April 22, 2011
Date of Patent:
February 23, 2016
Assignee:
BROCADE COMMUNICATIONS SYSTEMS, INC.
Inventors:
Suresh Vobbilisetty, Phanidhar Koganti, Jesse B. Willeke
Abstract: A method is provided for an access node to perform channel estimation. The method includes, when a UE and a relay node are present in a cell with the access node, the access node receiving from the UE and from the relay node DMRS that are cyclically shifted relative to one another. The method further includes the access node performing a first channel estimation based on the DMRS that was transmitted by the UE, performing a second channel estimation based on the DMRS that was transmitted by the at least one relay node, combining the first channel estimation with the second channel estimation to derive a combined channel estimation, using the first channel estimation to demodulate control information received from the UE, and using the combined channel estimation to demodulate data received from both the UE and the at least one relay node.
Type:
Grant
Filed:
August 12, 2010
Date of Patent:
February 23, 2016
Assignee:
BlackBerry Limited
Inventors:
Yi Song, Yi Yu, Zhijun Cai, Dongsheng Yu, Chandra S. Bontu
Abstract: A method, performed by a transceiver, is described. The transceiver receives a null data packet announcement (NDPA) frame to initiate channel sounding and a null data packet (NDP), the NDP following the NDPA frame. A first report field including beamforming information and a second report field including signal to noise ratio (SNR) information is configured. First feedback data including the first report field and a second report field is split into a plurality of segments. The plurality of segments is transmitted in a single aggregated medium access control protocol data unit (A-MPDU) including MPDUs. A retransmission request including a segment retransmission bitmap field indicating at least one segment of the plurality of segments for retransmission is received. In response to the retransmission request, second feedback data including the at least one segment indicated by the segment retransmission bitmap field is transmitted.
Type:
Grant
Filed:
December 15, 2014
Date of Patent:
February 23, 2016
Assignee:
LG ELECTRONICS INC.
Inventors:
Dae Won Lee, Ill Soo Sohn, Yong Ho Seok
Abstract: A method implemented in a base station used in a wireless communications system is disclosed. The method includes transmitting, to a user equipment (UE), an indication of a type of enhanced physical downlink control channel (ePDCCH) transmission, where the type of ePDCCH transmission comprises either localized transmission or distributed transmission, and transmitting, to the UE, an indication of the number of physical resource block (PRB) pairs allocated for the ePDCCH transmission, where the indication of the number of PRB pairs allocated for the ePDCCH transmission is conveyed in 2 or 3 bits. Other methods, apparatuses, and systems also are disclosed.
Abstract: Systems and methods for providing efficient utilization of spectrum in a cellular communication network that applies Almost Blank Subframes (ABSs) are disclosed. In general, the network includes an access node that applies ABSs in the downlink. In one embodiment, the access node identifies UEs for which transmissions are to be scheduled for the uplink using a scheduling scheme that does not require control information for every subframe. The access node then time-aligns scheduling instants of the UEs and subframes in the uplink that correspond to at least some of the ABSs in the downlink. In another embodiment, the access node identifies UEs for which transmissions are to be scheduled for the downlink using a scheduling scheme that does not require control information for every subframe. The access node then time-aligns scheduling instants of the UEs for the downlink and at least a subset of the ABSs in the downlink.
Abstract: Radar signals can be detected by a Wireless Local Area Network (WLAN) receiver by modifying one or more pattern matching attributes. In one embodiment, the pattern matching attributes are modified when signal pulses received by the WLAN receiver are determined to have an increased likelihood of being radar signals. In one embodiment, a frequency variance of received signal pulses is used to determine the likelihood of received signal pulses being radar signals. The frequency variance is based, at least in part, on frequencies of Fast Fourier Transforms of the received signal pulses.
Abstract: A method is provided in one example embodiment and includes creating at a network element an entry designating an out of order (“OOO”) sequence number range associated with a flow and receiving at the network element a packet associated with the flow, wherein the packet corresponds to a first sequence number range, wherein the first sequence number range falls within the OOO sequence number range designated in the entry. The method may further include updating the entry to remove sequence numbers comprising the first sequence number range from the OOO sequence number range and forwarding the packet without awaiting receipt of any other packets associated with the flow.
Type:
Grant
Filed:
April 24, 2014
Date of Patent:
January 26, 2016
Assignee:
CISCO TECHNOLOGY, INC.
Inventors:
Walter Dixon, Mahesh C. Kalyanakrishnan, Humberto M. Tavares, Showen Yeh
Abstract: In a method of operating a user equipment (UE) for transmitting a data burst through cross-carrier scheduling in a system supporting a plurality of component carriers, downlink control information (DCI) containing a carrier indicator field (CIF) is received from a base station (BS), through a physical downlink control channel (PDCCH) in a control region within a subframe. A downlink component carrier indicated by the CIF is identified, and an uplink component carrier linked with the identified downlink component carrier is then determined. An uplink data burst is transmitted to the BS through the determined uplink component carrier.
Abstract: Systems and methods are described for providing non-mobile data channel access to a mobile application on a mobile computing device. A request for data may be received, by a client component on the mobile computing device, from the mobile application. The client component may automatically detect that mobile data is unavailable, and may automatically select a non-mobile data channel for the mobile application to communicate to an application server. The automatic selecting may be based on availability of a non-mobile data channel and bandwidth of the available non-mobile data channel. The client component may translate the request for data into a format of the selected non-mobile data channel and transmit the translated request for data to a back-end server via the selected non-mobile data channel.