Frequency Division Patents (Class 370/281)
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Publication number: 20140133372Abstract: A wireless communication transmitting and receiving system may comprise a wireless transmitting and receiving unit, a receiving processing circuit, a transmitting processing circuit, and a receiving aerial and a transmitting aerial. Both the receiving processing circuit and the transmitting processing circuit may be connected to the wireless transmitting and receiving unit, and the receiving aerial and the transmitting aerial may be connected to the receiving processing circuit and the transmitting processing circuit. The present invention also may use a dual-aerial structure in which a transmitting channel is separated from a receiving channel and the two channels use respective aerials for communication; the separate aerials may provide an isolation of approximately 10 dB, thus lowering the in-band noise receiving requirement for the transmitting channel.Type: ApplicationFiled: May 28, 2012Publication date: May 15, 2014Applicant: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.Inventor: Jian Bai
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Patent number: 8724526Abstract: A system is described for transmitting a communication signal between power lines. The system includes: a transmitter which outputs an OFDM or an FM-OFDM signal at a radio frequency greater than 200 MHz; a first power line which receives the OFDM or the FM-OFDM signal from the transmitter and radiates the OFDM or the FM-OFDM signal from a conductor of the first power line; a second power line which wirelessly receives, by a conductor of the second power line, the OFDM or the FM-OFDM signal radiated from the first power line, and a receiver connected to the second power line which receives the OFDM or the FM-OFDM signal from the second power line.Type: GrantFiled: June 19, 2008Date of Patent: May 13, 2014Assignee: Satius Holding, Inc.Inventors: Charles Abraham, Chris Reinert, John E. Jarels
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Patent number: 8717951Abstract: A method of allocating a radio resource in a frequency division duplex (FDD) frame in which a downlink frame and an uplink frame are divided in a frequency domain in a wireless communication system includes allocating a downlink resource region for a first system in the downlink frame, and allocating an uplink resource region for the first system to the uplink frame such that the uplink resource region does not temporally overlap with the downlink resource region for the first system, wherein a resource region except for the downlink resource region for the first system is allocated to a downlink resource region for a second system in the downlink frame, and a resource region except for the uplink resource region for the first system is allocated to an uplink resource region for the second system in the uplink frame.Type: GrantFiled: February 26, 2009Date of Patent: May 6, 2014Assignee: LG Electronics Inc.Inventors: Sung Ho Moon, Minseok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee
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Publication number: 20140119247Abstract: A method for wireless communication is disclosed. A time alignment timer is started. It is determined when the time alignment timer will expire. A time alignment request subframe that is prior to the time alignment timer expiring is identified. Uplink time alignment is requested in the time alignment request subframe.Type: ApplicationFiled: March 11, 2013Publication date: May 1, 2014Applicant: QUALCOMM IncorporatedInventors: Vasanth Kumar Ramkumar, Srinivasan Rajagopalan, Bao Vinh Nguyen, Deepak Krishnamoorthi
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Patent number: 8706150Abstract: A method and apparatus for power control in a wireless communication system are provided. A Mobile Station (MS) operation method for power control in a wireless communication system includes assigning an UpLink (UL) control channel to the MS from a Base Station (BS), determining a location to receive a Transmit Power Control (TPC) command based on the UL control channel, and receiving a TPC command in the determined location and increasing or decreasing transmit power, thus advantageously being capable of reducing an overhead for power control command assignment information.Type: GrantFiled: March 5, 2010Date of Patent: April 22, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jeong-Ho Park, Hwa-Sun You, Hyun-Kyu Yu, Won-Il Roh, Ho-Kyu Choi
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Patent number: 8707119Abstract: A terminal unit for receiving a hybrid automatic retransmission request (HARQ) feedback using a frequency division duplex (FDD) frame comprises: a receiver, which receives an uplink assignment information element (A-MAP IE) for allocating each uplink through each downlink subframe of a first frame from a base station; a processor, which performs a process for transmitting uplink data that corresponds to the received A-MAP IE for allocating each uplink for a predetermined processing time: a transmitter, which transmits the processed uplink data to the base station from the respective downlink subframes having received the A-MAP IE for allocating each uplink, through each corresponding uplink subframe, after the predetermined processing time has lapsed; and a receiver, which receives, from the base station, the downlink HARQ feedback for each uplink data through each uplink subframe that has, in a third frame, the same index as the index of each downlink subframe where the A-MAP IE for allocating each uplink haType: GrantFiled: October 25, 2010Date of Patent: April 22, 2014Assignee: LG Electronics Inc.Inventors: Dong Guk Lim, Jin Sam Kwak, Han Gyu Cho
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Publication number: 20140105075Abstract: A frame structure for support of large delay spread deployment scenarios (e.g., cellular system operation in large cell sizes or low frequency bands) is generally presented. In this regard a method is introduced comprising partitioning a radio frame into a plurality of equal-sized (or non-equal-sized) sub-frames to simplify system implementation. Other embodiments are also disclosed and claimed.Type: ApplicationFiled: October 2, 2013Publication date: April 17, 2014Inventor: Sassan Ahmadi
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Publication number: 20140105078Abstract: The present invention provides a method for switching a working mode on a relay network, a base station, a relay node, and a communications system. A donor eNB (DeNB) sends an RN reconfiguration message to a relay node RN in frequency division duplex FDD mode, so that the RN switches from the FDD mode to a half-duplex frequency division duplex H-FDD mode. The DeNB receives an acknowledgment message sent by the RN in FDD mode. When the DeNB verifies, according to the RN reconfiguration message and the acknowledgement message, that the RN has already started to switch from the FDD mode to the H-FDD mode, the DeNB switches from the FDD mode to the H-FDD mode.Type: ApplicationFiled: December 19, 2013Publication date: April 17, 2014Applicant: Huawei Technologies Co., LTDInventors: Chongming Zhu, Bin Wang, Liang Xu
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Patent number: 8699387Abstract: A device (D) dedicated to control of bandwidth used by a work station (3-j) that can be connected to a network allowing the user to access a service that doesn't require feedback, this network being a frequency division duplexing network which accommodates at least one frequency bundle branch block of the first type, dedicated to transmission of data bundles, and a second type district from the first type. This device has i) the capacity to analyze at least signalling information received from the work station on the first type block, and ii) a switchover feature which is activated if the analysis device detects signalling information signalling the availability of a service on a second type frequency block range, to receive second type data stream on the second type frequency block.Type: GrantFiled: May 2, 2007Date of Patent: April 15, 2014Assignees: Alcatel Lucent, France TelecomInventors: Stanislas Bourdeaut, Jérôme Pons
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Patent number: 8699388Abstract: A bidirectional wireless communication system includes: a first wireless communication apparatus for bidirectional communication configured to multiplex a modulated signal obtained by modulating an input signal by a reference carrier signal having a predetermined carrier frequency, and transmit a resultant transmission signal; and a second wireless communication apparatus, having an oscillator configured to oscillate a signal having a free-running oscillation frequency, configured to inject a reception signal received from the first wireless communication apparatus into the oscillator, receive the reception signal while variably controlling the free-running oscillation frequency of the oscillator of the second wireless communication apparatus, detect whether the free-running oscillation frequency of the signal of the oscillator of the second wireless communication apparatus has entered the frequency range up to the injection locking to be frequency-locked with a carrier frequency of the injected reception sigType: GrantFiled: April 3, 2013Date of Patent: April 15, 2014Assignee: Sony CorporationInventor: Masahiro Uno
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Patent number: 8693425Abstract: An ASN encoder of a mobile station apparatus generates transmission and reception capability information including information relating to one or a plurality of component carriers to be used for communication with a base station apparatus. A transmission and reception apparatus transmits the transmission and reception capability information to the base station apparatus. A controller controls the communication with the base station apparatus, using the one or the plurality of component carriers assigned by the base station apparatus based on the transmission and reception capability information.Type: GrantFiled: April 24, 2012Date of Patent: April 8, 2014Assignee: Sharp Kabushiki KaishaInventor: Wahoh Oh
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Patent number: 8693432Abstract: The high quality PCS communications are enabled in environments where adjacent PCS service bands operate with out-of-band harmonics that would otherwise interfere with the system's operation. The highly bandwidth-efficient communications method combines a form of time division duplex (TDD), frequency division duplex (FDD), time division multiple access (TDMA), orthogonal frequency division multiplexing (OFDM), spatial diversity, and polarization diversity in various unique combinations. The method provides excellent fade resistance. The method enables changing a user's available bandwidth on demand by assigning additional TDMA slots during the user's session.Type: GrantFiled: October 30, 2012Date of Patent: April 8, 2014Assignee: AT&T Mobility II LLCInventors: Siavash Alamouti, Eduardo F. Casas, Michael Hirano, Elliott Hoole, Mary Jesse, David G. Michelson, Patrick Poon, Gregory J. Veintimilla, Hongliang Zhang
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Publication number: 20140092784Abstract: According to one or more embodiments described and claimed herein, HARQ acknowledgements, re-transmissions, and related signaling (e.g., channel quality reports) are performed on a Re-transmission Extension Carrier (REC) separate from the primary downlink traffic carrier(s). In various embodiments, as explained herein, the REC may comprise an aggregated wireless communication network channel, which may be cross-channel scheduled or may have its own scheduler. The REC may be Frequency Domain Duplex (FDD) or Time Domain Duplex (TDD). The REC may be dedicated to a main downlink carrier, or may be shared across a plurality of aggregated component carriers. The REC may be transmitted from the same base station as one or more associated main carriers, or from a different base station. A shared REC may be operated in cooperative or contention modes. The REC may be implemented in unlicensed spectrum.Type: ApplicationFiled: October 2, 2012Publication date: April 3, 2014Inventors: Ali S. Khayrallah, Jung-Fu Cheng
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Patent number: 8687585Abstract: An advanced technology frame structure is described herein. The advanced technology frame structure can enhance a first technology frame structure in dimensions of time, frequency, or a combination of time and frequency. A second technology frame structure time division multiplexes second technology subframes with the first technology downlink and uplink subframes. The first technology downlink subframe can be divided into a first technology downlink subframe and one or more second technology downlink subframes. Similarly, the first technology uplink subframe can be divided into a first uplink subframe and one or more second technology uplink subframes. These principles can be expanded upon and can be applied in many communication systems.Type: GrantFiled: February 13, 2012Date of Patent: April 1, 2014Assignee: Wi-LAN, Inc.Inventors: Roger Marks, Lei Wang, Yair Bourlas, Srikanth Gummadi, Kenneth Stanwood, Ron Porat
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Publication number: 20140086111Abstract: A method for multiplexing synchronous signals on specific OFDM symbols to form P-SCH and the S-SCH channels is provided. The present application further discloses a method for transmitting P-BCH.Type: ApplicationFiled: September 26, 2013Publication date: March 27, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Yingyang LI, Chengjun SUN
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Publication number: 20140086114Abstract: It would be to provide a method which will work with future versions of LTE-A, be backwards compatible and alleviate interference to signals for basic system operation. The method includes generating one or more Reference Signals associated with the one or more Channel Quality Indicators, and includes mapping the one or more Channel Quality Indicator-Reference Signals to the last symbol of the second slot of the one or more subframes.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Applicant: NEC CORPORATIONInventor: Boon Loong NG
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Publication number: 20140078942Abstract: The disclosure is related to transmitting a control channel, multiplexing an uplink control channel, and multiplexing a sounding reference signal for user equipment configured with carrier aggregation.Type: ApplicationFiled: September 12, 2013Publication date: March 20, 2014Applicant: KT CORPORATIONInventors: Min Seok Noh, Woo-Jin Choi
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Patent number: 8676138Abstract: A method of handling system information reception for a mobile device capable of receiving and transmitting on a plurality of component carriers in a wireless communication system is disclosed. The method comprises receiving system information of a secondary component carrier of the plurality of component carriers via a first dedicated signaling, and maintaining the system information of the secondary component carrier valid until an update of the system information of the secondary component carrier is received via a second dedicated signaling.Type: GrantFiled: April 18, 2011Date of Patent: March 18, 2014Assignee: HTC CorporationInventor: Chih-Hsiang Wu
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Publication number: 20140071861Abstract: The present invention provides a method and an apparatus for detecting a synchronization position of an LTE cell. A part of sampling points are selected from all sampling points of received data, where the received data is generated by filtering a local sequence from a base station; correlation operations are carried out on the part of the sampling points, and multiple first correlation results and multiple pieces of first position information that correspond to the part of the sampling points are obtained; and a maximum first correlation result is determined among at least one first correlation result greater than a preset threshold in the multiple first correlation results, and a piece of first position information, which corresponds to the maximum first correlation result, is taken as a synchronization position.Type: ApplicationFiled: February 7, 2013Publication date: March 13, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Xingguo Sun, Haijun Wang, Jiqian Li
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Publication number: 20140071863Abstract: A data transmitter for a wireless communication system is provided. Said apparatus comprises an OFDM (Orthogonal Frequency Division Multiplexing) symbol generating part that generates a plurality of OFDM symbols, a frame configuration part that configures a frame comprising includes said plurality of OFDM symbols, and a transmission part that transmits said plurality of OFDM symbols based on said frame that has been configured. Said frame is divided into a plurality of sub-frames, the number of OFDM symbols that are included in an optional sub-frame is any one of 5, 6, and 7, and the bandwidth of said wireless communication system is 8.75 MHz. Based on a new frame configuration, new parameter requirements may be satisfied taking backward compatibility into account.Type: ApplicationFiled: November 20, 2013Publication date: March 13, 2014Applicant: LG ELECTRONICS INC.Inventors: Sung Ho MOON, Jin Sam KWAK, Seung Hee HAN
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Patent number: 8668591Abstract: Disclosed are various embodiments enabling users to identify themselves to a computing device and then be provided access to the entitlement locker of applications and/or data to which the user is entitled.Type: GrantFiled: June 29, 2011Date of Patent: March 11, 2014Assignee: Amazon Technologies, Inc.Inventors: Ethan Z. Evans, Michael Anthony Frazzini
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Patent number: 8665999Abstract: A receiver for receiving data carried by multiple carriers, the receiver having: estimation means for forming an estimate of the reliability with which data from one or more of the carriers is received as distinct from the reliability with which data from one or more other of the carriers is received; and a decoder arranged for forming an estimate of the symbols represented by the data received from the carriers in dependence on the estimate of reliability.Type: GrantFiled: April 1, 2010Date of Patent: March 4, 2014Assignee: Cambridge Silicon Radio LimitedInventors: Dean Armstrong, Alexander Thoukydides
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Publication number: 20140050127Abstract: An apparatus and method for providing configuration information relating to an extension carrier within a wireless communications network is disclosed herein. In one embodiment, each enhanced node B (eNodeB) transmits the configuration information within the downlink subframes of at least one radio frame, wherein the configuration information is transmitted on the downlink shared channel (DL-SCH) included in the radio frame. In another embodiment, each eNodeB transmits the configuration information within a radio resource control (RRC) signaling included in at least one radio frame to select ones of the user equipments (UEs) in response to the system load relative to the select UE's request.Type: ApplicationFiled: December 28, 2011Publication date: February 20, 2014Applicant: INTEL CORPORATIONInventors: Ping Wang, Jong-Kae Fwu, Huaning Niu
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Patent number: 8654725Abstract: The present invention relates generally to a cellular telecommunications network. Each cell has at least one base station for sending messages on a downlink of a Frequency Division Duplex (FDD) to end user equipments within the cell and for receiving messages on an uplink from end user equipments within the cell. Other end user equipment located within the cell which have no or only poor communication directly with the base station over the FDD communicate with the base station indirectly via an intermediate end user equipment, such as a mobile telephone. The intermediate end user equipment includes an FDD transceiver and a Time Division Duplex (TDD) transceiver and an FDD/TDD interface.Type: GrantFiled: June 30, 2011Date of Patent: February 18, 2014Assignee: Rockstar Consortium US LPInventor: Keith Russell Edwards
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Patent number: 8654688Abstract: Disclosed are an apparatus and a method for performing communication using a half-frequency division duplex (H-FDD) frame structure in a mobile communication system. A user equipment for performing communication using an H-FDD frame structure according to the present invention comprises an RF unit in which each user equipment group receives and transmits signals using the H-FDD frame structure wherein the order of the downlink zone and uplink zone are reversely allocated to each of the groups. The downlink zone and uplink zone, which are allocated to each of the user equipment groups in the H-FDD frame structure, include a sub-frame wherein one or more symbols are allocated to idle time slots or are punctured. Each of the user equipment groups can receive and transmit signals using symbols that are not allocated to the idle time slots or are not punctured in the sub-frame.Type: GrantFiled: June 17, 2010Date of Patent: February 18, 2014Assignee: LG Electronics Inc.Inventors: Dong Guk Lim, Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Yeong Hyeon Kwon, Sung Ho Moon
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Patent number: 8654700Abstract: A frequency band of 12.5 kHz that two repeaters (2A), (2B) are allowed to utilize is divided into two frequency bands, divisional frequency bands of 6.25 kHz are allocated to respective repeaters (2A), (2B), the repeater (2A) which is one specific repeater suspends transmission of a signal at a certain time set beforehand, another repeater (2B) is instructed to suspend transmission of a signal, and after signal transmission at individual repeaters (2A), (2B) are suspended, the repeater (2A) transmits a defined CW-ID signal which is a call signal given to the whole two repeaters (2A), (2B).Type: GrantFiled: October 28, 2009Date of Patent: February 18, 2014Assignee: Icom IncorporatedInventors: Shoji Fukuzawa, Yoshiyuki Tanaka
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Publication number: 20140036743Abstract: A node of a wireless network is configured to arrange a frequency division duplex communications link from the node to a user equipment using a downlink frequency carrier having a downlink frequency bandwidth, and from the user equipment to the node by selectively using either a first uplink frequency carrier having a first uplink frequency bandwidth or a second uplink frequency carrier that is spaced apart in frequency from the first uplink frequency carrier and having a second uplink frequency bandwidth. The first uplink frequency carrier may initially be assigned to the user equipment, and the user equipment may be subsequently selectively handed over the second uplink frequency carrier, while continuing to use the downlink frequency carrier. Related nodes, user equipment and operating methods are described.Type: ApplicationFiled: July 31, 2012Publication date: February 6, 2014Inventor: Masoud Olfat
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Patent number: 8644236Abstract: A method for communication includes providing a first transceiver configured to communicate with a second transceiver over a bi-directional link having a first aggregation of frequencies that are assigned to carry first communication traffic in a first link direction from the first transceiver to the second transceiver and a second aggregation of frequencies that are assigned to carry second communication traffic in a second link direction from the second transceiver to the first transceiver. Communication feedback is transmitted from the first transceiver to the second transceiver communication feedback at an adaptive feedback rate. The feedback rate is determined so as to achieve a desired balance between the information carrying capacities of the first and second aggregations. An information carrying capacity of the second aggregation is controlled responsively to the communication feedback.Type: GrantFiled: August 7, 2011Date of Patent: February 4, 2014Assignee: Marvell World Trade Ltd.Inventors: Daniel Yellin, Yona Perets, Itsik Bergel
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Publication number: 20140029491Abstract: Methods and systems are disclosed for communicating in a wireless communications system utilizing a plurality of frequency bands for downlink (DL) transmission and a plurality of frequency bands for uplink (UL) transmission. In an embodiment, a mobile device receives a DL signal via a DL frequency band. The DL signal contains DL-UL frequency-band association information. The DL signal is decoded to obtain the DL-UL frequency-band association information which is used to determine a UL frequency band for UL transmission. The mobile device configures its radio-frequency (RF) circuitry to operate in the UL frequency band for UL transmission.Type: ApplicationFiled: September 30, 2013Publication date: January 30, 2014Applicant: Neocific, Inc.Inventors: Titus Lo, Xiaodong Li
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Publication number: 20140029485Abstract: Disclosed are methods, systems, and apparatus for maximizing the spectral efficiency of a communications spectrum by providing a means to transmit information continuously in both directions of a radio link on the same center frequency at any given time. One embodiment may be directed to a method of communicating in a point-to-point radio system. The method may include receiving a first signal at a first antenna of a radio head. The first signal may include a transmitted data signal and interfering signals. The method continues by determining a correction signal from a transmitter of the radio head and processing the first signal to remove the interfering signals using the correction signal, and sending a second signal using a second antenna. The first and second signals may be sent and received at substantially the same time.Type: ApplicationFiled: September 18, 2013Publication date: January 30, 2014Inventors: Charles Bowman, Behzad Moeenziai
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Publication number: 20140029492Abstract: A method, NodeB and User Equipment for TDD operation in a communication system operating in TDD mode in a frequency band allocated for FDD operation. Preferably, operation is in TDD uplink and downlink mode in a first frequency band designated or normally used for FDD uplink communication, and in TDD downlink-only mode in a second frequency band designated or normally used for FDD downlink communication. The invention provides the following advantages: Provides a flexible method to deploy a time division duplex architecture in frequency division duplex spectrum. Allows flexible use of system capacity by adjusting the uplink and downlink capacity split. Removes previous FDD duplex restrictions.Type: ApplicationFiled: October 1, 2013Publication date: January 30, 2014Applicant: Sony CorporationInventors: William John JONES, Joseph Chung Shing Cheung, Alan Edward Jones
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Publication number: 20140016524Abstract: Methods and apparatus that enable a wireless network system to dynamically change between full-duplex FDD operation and half-duplex FDD operation in order to take advantage of operational aspects of both modes. In one embodiment, an alternative duplex mode of operation is disclosed (semi-static half duplex FDD operation) that enables coordination between the client device (e.g., UMTS UE) and the base station in order to centralize control of radio resource control (RRC) to the base station. The disclosed methods and apparatus may also advantageously incorporate hybrid ARQ (HARQ) or comparable timing requirements into their operation.Type: ApplicationFiled: September 23, 2013Publication date: January 16, 2014Applicant: APPLE INC.Inventors: Hyung-Nam CHOI, Maik Bienas, Martin Hans
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Publication number: 20140016523Abstract: User equipment includes a diplexer that separates an uplink frequency band from a downlink frequency band of different component carriers (CCs); a duplexer that separates an uplink frequency band from a downlink frequency band of each of CCs; a reference value calculation unit that calculates a lower limit and, at least, a reference value being greater than the lower limit using control information from a base station; and a transmitter that transmits an uplink signal with transmission power calculated from the reference value while using a radio resource specified by the control signal in the uplink frequency bands of one or more of the CCs, wherein, when the control signal specifies the radio resource of two or more of the CCs, the lower limit is less than that in a case where the control signal specifies the radio resource of less than two of the CCs.Type: ApplicationFiled: March 15, 2012Publication date: January 16, 2014Applicant: NTT DOCOMO, INC.Inventors: Yuta Sagae, Hiromasa Umeda, Hiroyuki Ishii
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Patent number: 8630212Abstract: A data transmitter for a wireless communication system is provided. Said apparatus comprises an OFDM (Orthogonal Frequency Division Multiplexing) symbol generating part that generates a plurality of OFDM symbols, a frame configuration part that configures a frame comprising includes said plurality of OFDM symbols, and a transmission part that transmits said plurality of OFDM symbols based on said frame that has been configured. Said frame is divided into a plurality of sub-frames, the number of OFDM symbols that are included in an optional sub-frame is any one of 5, 6, and 7, and the bandwidth of said wireless communication system is 8.75 MHz. Based on a new frame configuration, new parameter requirements may be satisfied taking backward compatibility into account.Type: GrantFiled: November 23, 2009Date of Patent: January 14, 2014Assignee: LG Electronics Inc.Inventors: Sung Ho Moon, Jin Sam Kwak, Seung Hee Han
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Publication number: 20140010129Abstract: In embodiments of the present disclosure improved capabilities are described for reducing inter-cell interference in a large area broadband LTE wireless network utilizing RF agile beam forming antennas, where the reduced inter-cell interference is realized by arranging the sets of rotating RF beams in each cell such that adjacent RF beam sub-areas in the same or in different cells are not illuminated at the same time. The reduction in inter-cell interference results in reduced interference noise for users located near the edges of cells, thereby allowing them to be assigned higher data rates. Also, the same set of sub-carriers can be assigned by adjacent cells to users located in the RF beam sub-areas at the cell boundaries, thereby allowing the complete set of LTE sub-carriers to be assigned to any user at any time, without requiring additional cell-to-cell communications.Type: ApplicationFiled: September 4, 2013Publication date: January 9, 2014Applicant: All Purpose Networks LLCInventors: Harvey Rubin, James Keith Brewington, Anil S. Sawkar, David M. Poticny
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Patent number: 8625472Abstract: System and methods are provided for processing time-division signals and frequency-division signals using a multi-mode transceiver. The example system includes a power amplifier, a switching component, and a duplexer. The power amplifier is configured to receive a first time-division signal from the transceiver and to generate an amplified time-division signal based on the first time-division signal if the transceiver is in a time-division mode. The power amplifier is further configured to receive a first frequency-division signal from the transceiver and to generate an amplified frequency-division signal based on the first frequency-division signal if the transceiver is in a frequency-division mode. The switching component is configured to receive the amplified time-division signal from the power amplifier, and to output the amplified time-division signal for transmission.Type: GrantFiled: April 13, 2012Date of Patent: January 7, 2014Assignee: Marvell World Trade Ltd.Inventor: Mingjie Fan
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Patent number: 8619641Abstract: The present invention provides a single-user beamforming method suitable for a frequency division duplex system, comprising the following steps: obtaining a first transmission weight and a second transmission weight according to an uplink signal; using the first transmission weight to weight after adding a dedicated pilot of a layer 1 to a to-be-transmitted first data stream, and using the second transmission weight to weight after adding a dedicated pilot of a layer 2 to a to-be-transmitted second data stream; mapping the weighted first data stream to an antenna, mapping the weighted second data stream to the antenna, and sending them after superimposing them at the antenna port. The present invention also provides a single-user beamforming apparatus suitable for a frequency division duplex system. The present invention can send two data streams to one user at the same time, so it increases throughputs of user and system.Type: GrantFiled: December 7, 2009Date of Patent: December 31, 2013Assignee: ZTE CorporationInventor: Yang Guo
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Pilot arrangement method in mobile radio communication system and transmitter/receiver adopting same
Patent number: 8619541Abstract: A pilot arrangement method in a mobile radio communication system by which, in order to avoid a problem that poor CQI accuracy affects the scheduling of channel arrangement to cause the throughput to be deteriorated, a working frequency band is divided into a plurality of predetermined bands and time division multiplexing is performed. A known pilot symbol is inserted into the predetermined frequency bands at predetermined reference intervals. Furthermore, the known pilot symbol is inserted into at least one of the predetermined frequency bands at smaller intervals than the predetermined reference intervals and arranged.Type: GrantFiled: January 15, 2010Date of Patent: December 31, 2013Assignee: Fujitsu LimitedInventors: Kenji Suda, Hiroyuki Seki -
Patent number: 8615250Abstract: A first wireless network collects profiles of user equipments operating under the first wireless network associated with a first core network or operator; profiles of user equipments operating under a second wireless network associated with a second core network or operator; and measurement information of an unlicensed band. Based on the collected profiles and measurement information, allocating to the first wireless network and to the second wireless network resources on the unlicensed band. In various specific embodiments, there is also collected a pre-defined agreement which sets forth relative shares of the unlicensed band for the first wireless network and for the second wireless network; and the profiles of the user equipments each includes authentication and security information, and the respective profiles are utilized to control admission of the respective user equipments to the respective first and second wireless networks.Type: GrantFiled: January 9, 2012Date of Patent: December 24, 2013Assignee: Renesas Mobile CorporationInventor: Hongnian Xing
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Patent number: 8614969Abstract: A method of broadcasting frequency policy information in a cognitive radio based communication system, apparatus therefore and a communication method using the same are disclosed. In particular, a policy broadcaster is provided as a subject performing a broadcast of frequency policy information in cognitive radio communication. A method of broadcasting frequency policy information using the same and a method of performing cognitive radio communication by obtaining frequency policy information using the same are provided. Moreover, an enhanced superframe structure, which is capable of providing a seamless service in case that a narrowband terminal is introduced in the middle of a superframe, is provided.Type: GrantFiled: September 14, 2007Date of Patent: December 24, 2013Assignee: LG Electronics Inc.Inventors: Ae Ran Youn, Yong Ho Kim, Yeong Hyeon Kwon, Hyun Soo Ko, Jin Hyuk Jung, Moon Il Lee, Wook Bong Lee
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Publication number: 20130336176Abstract: The present disclosure is related to a large-scale broadband wireless network capable of providing a very high wireless data capacity, wherein one aspect of the system utilizes a periodic beam forming system. When a wireless base station cell operates a periodic beam forming system, it is necessary to locate each user served by the cell within a sub-area covered by one of the m times N RF beams generated by the system. Methods for locating users within RF beam sub-areas are disclosed herein, where a user may be scheduled for transmission or reception only when an RF beam is focused on the sub-area that covers the user location. The present disclosure pertains to the systems and methods that may be used to process transmissions of and receptions by the baseband system of an LTE wireless base station that employs a periodic beam forming RF and antenna system.Type: ApplicationFiled: July 18, 2013Publication date: December 19, 2013Inventors: Harvey Rubin, James Keith Brewington, Anil S. Sawkar, David M. Poticny
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Publication number: 20130336179Abstract: Methods and systems having improved capabilities are described for providing communications to a plurality of cellular mobile devices through generating m different sets of fixed position patterns of N RF beams across four contiguous one-millisecond LTE sub-frames from an agile beam forming antenna system of a cellular LTE base transceiver station. The cellular LTE base transceiver station is in RF frequency division duplexing (FDD) communication with the plurality of cellular mobile devices within a cell coverage area of the cellular LTE base transceiver station. Each RF beam illuminates a non-contiguous sub-area of the cell coverage area. A number m sets of RF beam patterns illuminate the area of the cell coverage area, wherein 1?m?4.Type: ApplicationFiled: January 31, 2013Publication date: December 19, 2013Applicant: ALL PURPOSE NETWORKS LLCInventors: Harvey Rubin, James Keith Brewington, Anil S. Sawkar, David M. Poticny
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Publication number: 20130336175Abstract: Provided is a method for duplex in a cognitive radio communication system, including: collecting radio environment information including information of usable radio resources; determining a duplex scheme for each radio resource based on the radio environment information; and allocating at least one of the radio resources to information to be transmitted and received, depending on characteristics of the information.Type: ApplicationFiled: June 7, 2013Publication date: December 19, 2013Inventors: Jung Sun UM, Byung Jang JEONG, Sang Won KIM, Sung Jin YOO, Jae Ick CHOI
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Patent number: 8605632Abstract: A method of transmitting subframe designating information in downlink in a wireless communication system is disclosed. The present invention includes generating the subframe designating information for designating a subframe of a specific type in a radio frame and transmitting the generated subframe designating information to a user equipment, wherein the subframe designating information includes initial location information indicating an initial location of the subframe of the specific type on the radio frame and period information indicating a period for the subframe of the specific type to be repeated.Type: GrantFiled: July 7, 2011Date of Patent: December 10, 2013Assignee: LG Electronics Inc.Inventors: Yeong Hyeon Kwon, Min Seok Noh, Kyu Jin Park, Jae Hoon Chung, Seung Hee Han
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Publication number: 20130322309Abstract: Embodiments of systems and methods are presented to provide diverse multiple channel aggregation for wireless broadband edge devices with existing wireless technologies. A method and apparatus for supporting aggregation of multiple diverse RF carriers are disclosed. A wireless edge device capable of transmit and receiving on multiple diverse RF carriers using one or multiple wireless standards A wireless edge device may utilize carrier aggregation using the same radio access scheme with different frequency bands and possibly different rf bandwidths. Additionally a wireless edge device which can utilize different radio access schemes with different frequency bands. The radio access scheme and the frequency bands that the wireless edge device can use may be provided by one wireless network operator or by multiple wireless network operators.Type: ApplicationFiled: June 5, 2013Publication date: December 5, 2013Inventor: Clint Smith
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Patent number: 8599728Abstract: Various example embodiments are disclosed herein. According to an example embodiment, a method may include receiving at a mobile station from a base station in a wireless network, a message including a group switch instruction instructing the mobile station to switch from a current group to a new group, attempting, by the mobile station, to switch to the new group in response to receiving the group switch instruction, and sending, from the mobile station, an acknowledgement message that acknowledges either the success or failure of the attempting to switch to the new group.Type: GrantFiled: July 7, 2009Date of Patent: December 3, 2013Assignee: Nokia Siemens Networks OyInventors: Roberto Albanese, Andrea Bacioccola, Zexian Li, Aik Chindapol
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Patent number: 8594037Abstract: An apparatus and method for assigning an acknowledgement (ACK)/a negative acknowledgement (NACK) channel resources. The method includes setting a User Equipment (UE) to feed back Acknowledgement (ACK)/Negative Acknowledgement (NACK) information in a Carrier Aggregation (CA) mode; setting a Transmit Power Control (TPC) field of a Physical Downlink Controlling Channel (PDCCH) message to transmit an ACK/NACK Resource Indicator (ARI) information, when a Downlink Assigning Indicator (DAI) value of the PDCCH message of a Secondary cell (Scell) scheduled in a non cross-carrier manner is 1; setting the TPC field to transmit a TPC command for the ACK/NACK feedback information, when the DAI value is greater than 1; and transmitting the PDCCH message and downlink data to the UE.Type: GrantFiled: February 13, 2012Date of Patent: November 26, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Yingyang Li, Chengjun Sun, Xiaoqiang Li
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Publication number: 20130308504Abstract: User equipment determines a transport block size column indicator representative of a number of resource blocks based on a number of allocated resource blocks, an adjustment factor, and a limiting factor. The transport block size column indicator is determined by applying the adjustment factor to the number of allocated resource blocks and comparing a result of applying the adjustment factor to the number of allocated resource blocks to the limiting factor. The transport block size column indicator is selected as either the result or the limiting factor as the based on the comparison.Type: ApplicationFiled: April 25, 2013Publication date: November 21, 2013Applicant: MOTOROLA MOBILITY LLCInventors: Ajit Nimbalker, Robert T. Love
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Publication number: 20130301491Abstract: Technology is discussed for supporting the incorporation of a Primary Synchronization Signal (PSS) and/or a Secondary Synchronization Signal (SSS) within in a New Carrier Type (NCT) for a Component Carrier (CC). Guidelines for incorporating the PSS and/or the SSS in the NCT are discovered, together with potential collisions with other signals that can be avoided for various scenarios. In some examples, various guidelines and potential collisions discovered herein, for various scenarios, inform approaches to incorporating the PSS and/or the SSS based on the positioning of the PSS and/or the SSS. In other examples, other signals, such as DeModulation Reference Symbols (DMRS) are reconfigured to allow incorporation of the PSS and the SSS.Type: ApplicationFiled: January 28, 2013Publication date: November 14, 2013Inventors: Shafi Bashar, Jong-Kae Fwu, Hong He
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Patent number: 8582478Abstract: A frequency division (FD) multiplexing device includes a multiplexer including a band-pass and a band-stop filter, the multiplexer is communicatively coupled to an antenna, the band-pass filter is configured to allow pass band frequencies to pass un-attenuated and to attenuate signals outside of the pass band. The band-stop filter is configured to attenuate signals at frequencies in at least a portion of the pass-band and allow frequencies outside the pass-band to pass un-attenuated.Type: GrantFiled: March 23, 2011Date of Patent: November 12, 2013Assignee: QUALCOMM, IncorporatedInventor: Xiaoyin He