Adaptive Selection Of Channel Assignment Technique Patents (Class 370/437)
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Patent number: 8855078Abstract: A system and method for managing resources in a heterogeneous network, which includes a primary system and a secondary system, and in which a communication coverage range of the primary system is divided into a plurality of regions, the system including: a heterogeneous network resource management module configured to collect and manage resource usage status within a managed region; and a secondary system resource management module configured to acquire the resource usage status of each region from the heterogeneous network resource management module and to allocate resources to the secondary system by utilizing the acquired resource usage status of each region in accordance with a priority determined based on an efficiency of resource multiplexing between the primary system and the secondary system in each region. The system and method improve resource usage efficiency.Type: GrantFiled: October 17, 2013Date of Patent: October 7, 2014Assignee: Sony CorporationInventor: Xin Guo
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Patent number: 8855099Abstract: Systems and methodologies are described that facilitate multiple-phase selective connection establishment in wireless communications networks. Radio resource control (RRC) layer communications can be instantiated between a mobile device and base station. Additional information can be required by a downstream network component regarding the mobile device. Accordingly, the RRC resources can be utilized to transmit the additional information from the mobile device to the network component to facilitate the multiple-phase establishment. This can be accomplished using non-access stratum (NAS) messages. Further, the information can relate to authorization, security re-configuration, context re-synchronization, an identity of the mobile device, and the like.Type: GrantFiled: March 6, 2008Date of Patent: October 7, 2014Assignee: QUALCOMM IncorporatedInventors: Masato Kitazoe, Francesco Grilli
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Patent number: 8855053Abstract: A method of multi-set RRC signaling for ap-SRS configuration is provided to enhance ap-SRS flexibility. An eNB transmits a plurality of sets of UE-specific SRS parameters to a UE via upper layer messaging in a multi-carrier wireless communication system. The eNB also determines triggering information of a selected set of UE-specific SRS parameters and an indicated carrier for the UE. The eNB then transmits an uplink or downlink grant over a primary carrier, the grant comprises triggering information for the UE to send an ap-SRS over the indicated carrier using the selected set of UE-specific SRS parameters. In one embodiment of joint signaling, the plurality of sets of UE-specific SRS parameters are signaled together in a single RRC transmission. In another embodiment of separate signaling, each set of UE-specific SRS parameters is signaled independently.Type: GrantFiled: November 1, 2011Date of Patent: October 7, 2014Assignee: Mediatek Inc.Inventors: Yih-Shen Chen, Chih-Yuan Lin
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Patent number: 8848628Abstract: A method and an apparatus maximize the capacity of a wireless communication network by taking into consideration inter-cell interference coordination. A home cell's capacity sensitivity to interference is calculated. At least one neighbor cell's capacity sensitivity to interference is collected. And at least one UE located in the home cell is scheduled based on the home cell's capacity sensitivity and the neighbor cell's capacity sensitivity. Accordingly, it is possible to achieve power and allocation control to maximize the capacity of the overall network including neighbor cells increase the system capacity in a cellular system in which inter-cell interference is large, and adaptively perform a UE scheduling in real time to changing distribution of UEs because information on a change in the capacity of each cell is shared by periods.Type: GrantFiled: November 10, 2010Date of Patent: September 30, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Yun Ko, Sung-Ho Lee, Soon-Young Yoon, June Moon, Chung-Ryul Chang, Sung-Woo Park, Seung-Won Kang, Ho-Joong Kwon
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Patent number: 8848729Abstract: The present invention discloses a method for configuring a Physical Downlink Control Channel (PDCCH), a base station and a UE, wherein the base station configures a component carrier or component carriers for monitoring the PDCCH for the UE and notifies the UE about information on the configured component carrier or component carriers so that the UE monitors the PDCCH only over the configured component carrier or component carriers. Stated otherwise, in this way, the UE will operate only over a necessary component carrier or component carriers without monitoring respective component carriers in an LTE-A system to thereby reduce the number of concurrently monitored component carriers, and in the case of nonconsecutive component carriers, also reduce the number of consequently enabled receivers and consequently the amount of consumed power of the UE for monitoring the PDCCH.Type: GrantFiled: January 14, 2010Date of Patent: September 30, 2014Assignee: China Academy of Telecommunications TechnologyInventors: Li Chen, Zhuo Gao, Guooing Li
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Patent number: 8848562Abstract: A method includes receiving an indication of current quality of service for a transmission received by user equipment from a base station. The method includes identifying target quality of service values for the transmission. A current FEC value and a current MCS value is identified for the transmission. An adjusted FEC value and an adjusted MCS value is determined based on the current FEC value and the current MCS value, the indication of current quality of service, and the target quality of service values. The method includes outputting the adjusted FEC value to a broadcast multicast service center for the transmission. The method also includes outputting the adjusted MCS value to the base station.Type: GrantFiled: February 22, 2012Date of Patent: September 30, 2014Assignee: Verizon Patent and Licensing Inc.Inventors: Lalit Kotecha, Sergio Aguirre
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Patent number: 8842542Abstract: Apparatus and methods of scheduling one or multiple streams for a user equipment (UE) include receiving a single happy bit for the one or multiple streams, determining a set of scheduling grants for a UE configured to transmit over the one or multiple streams, and transmitting the scheduling grant to the UE.Type: GrantFiled: February 6, 2013Date of Patent: September 23, 2014Assignee: QUALCOMM IncorporatedInventors: Danlu Zhang, Sharad Deepak Sambhwani, Arjun Bharadwaj, Ravi Agarwal, Sony J. Akkarakaran
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Patent number: 8843978Abstract: Methods and apparatus for assigning bandwidth to a network based on two or more different service levels. In an exemplary embodiment, video on-demand (VOD) session requests within a service group of an HFC cable network are assigned bandwidth such that maximum opportunity is given to grant HD VOD request among SD VOD requests, while meeting the goal of minimizing service disruption by spreading the sessions over multiple QAM channels, and limiting the maximum number of active VOD sessions of any kind.Type: GrantFiled: June 29, 2004Date of Patent: September 23, 2014Assignee: Time Warner Cable Enterprises LLCInventor: Glen Hardin
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Patent number: 8842560Abstract: Systems, methods, devices, and computer program products are described for handling of access terminals on an out-of-band piconet within a femto-proxy architecture. A femto-proxy system includes a femtocell (a femto access point, or FAP) and one or more out-of-band (OOB) proxies. One of the OOB proxies is configured to act as a master of an OOB piconet, through which various services are provided, including services to support the femtocell operation of the femto-proxy system. For example, the OOB piconet is used to facilitate lower power access to the macro communications services provided through the femtocell. In some cases, a combination of connected and inactive OOB operational modes are used to support an expanded number of slave access terminals on the piconet, where some of those slaves are operating in an active WWAN mode and others are operating in an idle WWAN mode. For example, parked mode may be used for idle WWAN mode access terminals.Type: GrantFiled: September 16, 2010Date of Patent: September 23, 2014Assignee: QUALCOMM IncorporatedInventors: Soumya Das, Samir S. Soliman
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Patent number: 8837438Abstract: A method and device for performing contention resolution between a mobile communication terminal and a base station. The method according to an embodiment includes initiating a random access procedure by a medium access control (MAC) layer of the mobile communication terminal, including starting a contention resolution timer; and stopping the contention resolution timer and determining that the random access procedure was successfully completed upon receipt from the base station of a physical downlink control channel (PDCCH) transmission addressed to a cell-radio network temporary identity (C-RNTI) of the mobile communication terminal and containing a UL grant.Type: GrantFiled: February 24, 2009Date of Patent: September 16, 2014Assignee: LG Electronics Inc.Inventors: Sung Jun Park, Seung June Yi, Young Dae Lee, Sung Duck Chun
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Patent number: 8837409Abstract: To prevent a collision from occurring at the time of random access in cases such as handover, response to paging and the like where a mobile station apparatus performs random access in response to directions from a base station apparatus. In a mobile communication system in which a mobile station apparatus 200 uses a signature of a beforehand determined signature group at the time of random access with a base station apparatus 100, the signature group is comprised of a signature group managed by the base station apparatus 100 and another signature group managed by the mobile station apparatus 200. The signature group managed by the base station apparatus 100 includes signatures associated with particular random access reasons to be selected by the base station apparatus 100.Type: GrantFiled: June 6, 2012Date of Patent: September 16, 2014Assignee: Sharp Kabushiki KaishaInventors: Yasuyuki Kato, Shohei Yamada, Wahoh Oh
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Patent number: 8837352Abstract: The present invention relates to a broadband wireless access system, and more specifically, to a method and apparatus for efficiently allocating resources to terminals in a random access system. The method for performing such a random access procedure of a terminal in a broadband wireless system according to one embodiment of the present invention comprises: transmitting a preamble sequence to a random access region in a base station; and receiving from the base station ACK information indicative of a received state of the preamble sequence. The ACK information receiving step is preferably a step of decoding a map information element that is masked as an identifier of the random access region.Type: GrantFiled: April 7, 2010Date of Patent: September 16, 2014Assignee: LG Electronics Inc.Inventors: Hee Jeong Cho, Young Soo Yuk, Su Nam Kim, Yong Ho Kim
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Patent number: 8831031Abstract: At a transmitter, an ATM cell stream is received from the ATM layer and is distributed on a cell-by-cell bases across multiple DSL PHY's. At the receiver, the cells from each DSL PHY are re-combined in the appropriate order to recreate the original ATM cell stream, which is then passed to the ATM layer.Type: GrantFiled: April 15, 2013Date of Patent: September 9, 2014Assignee: TQ Delta, LLCInventors: Marcos C. Tzannes, Edmund Reiter, Chistopher Cahill
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Patent number: 8830879Abstract: Disclosed is a method for enabling a mobile terminal to perform a handover in a mobile communication system. A serving base station which supports both a first communication scheme and a second communication scheme can transmit, to the mobile terminal, a neighbor base station list broadcast message containing time offset information indicating the point of time to transmit information on a second base station which uses the second communication scheme and supports only the second communication scheme via a specific zone using the second communication scheme. The mobile terminal which has received the message can receive, from the serving base station, the information on the second base station via the specific zone on the basis of the received time offset information.Type: GrantFiled: January 20, 2010Date of Patent: September 9, 2014Assignee: LG Electronics Inc.Inventors: In Uk Jung, Ki Seon Ryu, Yong Ho Kim
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Patent number: 8831027Abstract: A method intended to aid in the reservation of resources within a packet-switched communication network comprising a number N of relaying nodes. This method consists i), in determining for some at least of the N nodes at least one resource reservation plan Pik defined by a plan identifier associated with a stream identifier and at least two ports, and ii) in memorizing for each of the N nodes the various plans Pik relating to them.Type: GrantFiled: January 20, 2009Date of Patent: September 9, 2014Assignee: Thomson LicensingInventors: Gael Mace, Jean Le Roux, Claude Chapel
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Patent number: 8824343Abstract: The present disclosure provides a method and system for implementing synchronization among micro-base stations, including: a micro-base station intercepts a wireless reference signal of an air interface, and selects a synchronization reference object according to an intercepted wireless reference signal; and the micro-base station implements synchronization processing through detecting the wireless reference signal of the selected synchronization reference object, and adjusts its own synchronization information. The method for implementing synchronization among micro-base stations disclosed in the present disclosure is implemented on the basis of the wireless air interface signals of the micro-base stations, requires no additional synchronization hardware devices (such as Global Positioning Satellite (GPS) receiving apparatus, etc.) and has low cost.Type: GrantFiled: October 26, 2010Date of Patent: September 2, 2014Assignee: ZTE CorporationInventor: Yun Zhu
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Patent number: 8824330Abstract: A system and method for synchronized and coordinated beam switching and scheduling in a wireless communications system is provided. A method for controller operation includes determining a beam cycle pattern, sharing the beam cycle pattern with neighboring controllers, receiving beam information from a communications device, generating scheduling information from the beam cycle pattern and beam cycle patterns from other controllers, receiving a transmission intended for the communications device, and causing the transmission to be transmitted to the communications device. The beam cycle pattern includes a list of beam patterns transmitted by the controller, and the transmission is transmitted using the scheduling information and the received beam information.Type: GrantFiled: July 25, 2013Date of Patent: September 2, 2014Assignee: Furturewei Technologies, Inc.Inventors: Cornelius van Rensburg, Patrick Ahamad Hosein, Anthony C. K. Soong
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Patent number: 8817898Abstract: A method and apparatus for filtering a received Orthogonal Frequency Division Multiplexed (ODFM) signal to reduce noise. The ODFM signal includes a plurality of symbols n in the time direction, each symbol including a plurality of sub-carriers k in the frequency direction, each a-th sub-carrier of each symbol being transmitted as a pilot sub-carrier with known amplitude and phase, and each symbol having its pilot sub-carriers spaced by b sub-carriers relative to the adjacent symbol. An m-tap filter is utilized for producing a filtered version of a selected pilot sub-carrier to be used in subsequent interpolation, by inputting into respective taps of the m-tap filter, m pilot sub-carriers surrounding the selected pilot sub-carrier. The m pilot sub-carriers each satisfy a relationship between n and k, wherein the relationship defines a diagonal line in the n-k plane.Type: GrantFiled: September 6, 2011Date of Patent: August 26, 2014Assignee: Imagination Technologies, LimitedInventors: Adrian John Anderson, Paul Damon Murrin
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Patent number: 8817719Abstract: The present invention relates to methods and arrangements for providing a more flexible configuration of SRS transmission. This is achieved by dynamically triggering a mobile terminal to transmit SRS. Thus, embodiments of the invention allow dynamically trigged SRS in any uplink subframe, even without necessarily reserving resources semi-statically on cell level. This is done by signaling to the terminal whether the mobile terminal should leave the predefined uplink symbol empty for sounding reference signals or use it for data transmission. In case a terminal leaves the last symbol empty for sounding reference signals, there are two possibilities, either the UE shall transmit one or several reference signals from one or several antennas, or the terminal shall leave the last symbol blank since another terminal may be using the resource for sounding.Type: GrantFiled: June 18, 2010Date of Patent: August 26, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Ali Behravan, David Astely, George Jöngren
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Patent number: 8817716Abstract: A radio link transmission method that comprises transmitting data on a plurality of radio channels. The method allocates a portion of the capacity of each radio channel for transmission of identical data on the plurality of radio channels. The remaining capacity of each radio channel is allocated for transmission of unique data, which is different for each radio channel. The method further transmits the identical data on each radio channel of the plurality of radio channels, and transmits the unique data in the respective radio channels of the plurality of radio channels.Type: GrantFiled: August 29, 2008Date of Patent: August 26, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Laura Clima, Giulio Monguzzi, Per-Arne Thorsén
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Patent number: 8818392Abstract: A system, and computer program product for mobile data transmission are provided in the illustrative embodiments. A request for data is received from a mobile device. A determination is made whether a data transmission over a mobile data communication network in response to the request can be delayed, forming a time-shifting determination. A determination is made, responsive to the time-shifting determination being affirmative, a delayed schedule for the data transmission in response to the request such that the data transmission is completed by a deadline. The data is transmitted over the mobile data communication network according to the delayed schedule.Type: GrantFiled: August 21, 2012Date of Patent: August 26, 2014Assignee: International Business Machines CorporationInventors: Malolan Chetlur, Shivkumar Kalyanaraman, Hemant Jagdish Kowshik
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Patent number: 8811310Abstract: In order to increase the transmission speed in a wireless network comprising at least a node, the method comprises the following steps: transmission by the node over at least one first physical channel of at least one request to send, reception by the node of at least one agreement to send data over at least one second physical channel using at least one frequency band belonging to the extremely high frequencies, and the first and second physical channels being different, data transmission after reception.Type: GrantFiled: December 15, 2009Date of Patent: August 19, 2014Assignee: Thomson LicensingInventors: Patrick Fontaine, Francois Baron, Philippe Chambelin
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Patent number: 8811249Abstract: The present invention relates to a radio communication system. More particularly, the present invention relates to a signal transmission method in which a terminal transmits a signal in a radio communication system, said method comprising the steps of determining the transmission power for both a first channel and a second channel independently from one another; reducing at least the transmission power of the first channel or the transmission power of the second channel in consideration of a channel priority when the sum of the transmission power of the first channel and the transmission power of the second channel exceeds a maximum transmission power, and transmitting signals at the same time to a base station through the first channel and the second channel.Type: GrantFiled: January 28, 2010Date of Patent: August 19, 2014Assignee: LG Electronics Inc.Inventors: Dong Youn Seo, Ki Jun Kim, Joon Kui Ahn, Min Gyu Kim, Jung Hoon Lee, Dae Won Lee, Suck Chel Yang
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Patent number: 8811269Abstract: Methods and apparatuses are described for the transmission of Scheduling Assignments (SAs) from a base station to User Equipments (UEs) for data reception in the downlink or data transmission in the uplink of a communication system consisting of multiple Component Carriers (CCs). The SAs are separately coded and transmitted using elementary units (Control Channel Elements or CCEs). Locations of CCEs determine whether an SA is intended for a first CC or for a second CC. Further, the location of CCEs for an SA intended for a first CC is used to determine locations of CCEs for an SA intended for a second CC.Type: GrantFiled: December 27, 2012Date of Patent: August 19, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Aris Papsakellariou, Jin-Kyu Han, Joon-Young Cho
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Patent number: 8811330Abstract: A method of allocating communication resources for a communication between a transmitter and a receiver in a communication system, the communication resources being divided in time periods and frequency sub-bands. The transmitter receives a channel quality measurement sent by the receiver. The transmitter performs allocation of a first part of the communication resources to the receiver according to the channel quality measurement if allocation of the first part is selected, or allocation of a second part of the communication resources to the receiver if allocation of the first part is not selected. The transmitter informs the receiver of allocated communication resources, and the allocated communication resources being designated for frequency localized channels or for frequency distributed channels.Type: GrantFiled: June 18, 2013Date of Patent: August 19, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Jaap Van De Beek, Oskar Mauritz, Branislav Popovic
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Patent number: 8804683Abstract: When a wireless communication network is built in an ad hoc mode, it is possible to appropriately build the wireless communication network regardless of start timings of wireless communication functions of image capturing apparatuses. In order to achieve the object, there is provided the image capturing apparatus which is capable of building a wireless communication network by wirelessly connecting to another image capturing apparatus in an ad hoc mode, and which is capable of switching between a function as a creator and a function as a joiner, including a start unit configured to start as the creator, a unit configured to execute a scan process, and a unit configured to determine based on a result of the scan process whether to function as the creator and to function as the joiner, and to control the image capturing apparatus in accordance with the determination result.Type: GrantFiled: March 6, 2013Date of Patent: August 12, 2014Assignee: Canon Kabushiki KaishaInventor: Hajime Shimura
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Patent number: 8804756Abstract: The present invention provides a method for improving interaction between a Scheduling Request procedure and a Random Access procedure in a user equipment (UE) of a wireless communication system. The method includes steps of triggering a Scheduling Request procedure; repeatedly sending a Dedicated Scheduling Request (D-SR) message on a Physical Uplink Control Channel (PUCCH) until an uplink transmission resource for a new transmission is received or the number of D-SR transmissions reaches to a specific value when the PUCCH is configured for the UE; and deactivating all pre-configured transmission resources before performing a Random Access procedure corresponding to the Scheduling Request procedure when the number of D-SR transmissions reaches to the specific value.Type: GrantFiled: September 9, 2009Date of Patent: August 12, 2014Assignee: Innovative Sonic LimitedInventor: Li-Chih Tseng
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Patent number: 8804510Abstract: A system for managing resources in a communication system including systems which do not have a permission for a first frequency band includes a coexistence manager configured to, when a frequency band available for the systems is searched from the first frequency band, manage the systems for coexistence and frequency sharing of the systems in the available frequency band; a coexistence enabler configured to transmit and receive information of the systems and information of the coexistence manager; and a coexistence discovery and information server configured to support control of the coexistence manager over the systems, wherein a plurality of coexistence managers are provided to respectively correspond to the plurality of systems, and wherein, among the plurality of coexistence managers, a first coexistence manager performs a negotiation procedure with coexistence managers neighboring to it, on the basis of one of an etiquette mode, a round-robin mode and a competition mode.Type: GrantFiled: December 29, 2011Date of Patent: August 12, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Dong-Hun Lee, Hyunduk Kang
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Patent number: 8798088Abstract: Disclosed herein are methods and systems for managing usage of traffic-channel resources in an access network, which are preferably resources that are reserved during a traffic channel assignment (TCA) process. An exemplary method comprises (i) a base station determining a usage level of at least one traffic-channel resource in a coverage area of the access network; (ii) based at least in part on the determined usage level, updating one or more TCA parameters affecting expected usage of the traffic-channel resource resulting from the TCA process; and (iii) performing the TCA process according to the updated TCA parameters. Preferably the usage level is determined for Medium Access Control Identifiers (MAC_IDs). Further, the access-channel occupancy (ACO) may be determined and the base station may further base the updating of TCA parameters on the ACO. In an exemplary embodiment, the updated TCA parameters include the TCA count and/or the TCC wait timer.Type: GrantFiled: January 20, 2010Date of Patent: August 5, 2014Assignee: Sprint Spectrum L.P.Inventors: Manoj Shetty, Sachin R. Vargantwar, Maulik K. Shah, Jasinder P. Singh
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Patent number: 8797968Abstract: A method for allocating resources for a scheduling request indicator (SRI) is disclosed. An SRI cycle period for use by user equipment (UE) within a cell is transmitted from a NodeB in a cell to UE within the cell. The NodeB transmits a specific SRI subframe offset and an index value to the particular UE within the cell. The specific SRI subframe offset and the index value enable the UE to determine a unique combination of cyclic shift, RS orthogonal cover, data orthogonal cover, and resource block number for the UE to use as a unique physical resource for an SRI in the physical uplink control channel (PUCCH).Type: GrantFiled: February 18, 2013Date of Patent: August 5, 2014Assignee: Texas Instruments IncorporatedInventors: Pierre Bertrand, Zukang Shen, Tarik Muharemovic
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Patent number: 8797889Abstract: A radio base station transmits data symbols to a mobile terminal on multiple frequency carriers, e.g., in accordance with the MC-WCDMA or cmda2000 3x air interface protocols. The radio base station instructs the mobile terminal to report channel quality measurements obtained by the terminal for the multiple carriers over the same uplink channel during successive reporting intervals. According to one embodiment, the mobile terminal reports channel quality by receiving data symbols transmitted on a plurality of frequency carriers in a multi-carrier CDMA environment and measuring channel quality for the different frequency carriers. The mobile terminal reports individual ones of the channel quality measurements over the same uplink channel during successive reporting intervals.Type: GrantFiled: November 30, 2007Date of Patent: August 5, 2014Assignee: Telefonaktiebolaget LML Ericsson (Publ)Inventors: Stefan Parkvall, Erik Dahlman, Bo Göransson, Joakim Bergström
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Patent number: 8797989Abstract: A method for determining a proper preamble allocation mode is provided. The method is applicable to a base station communication with a number of human to human UEs and machine to machine UEs. The base station collects information from different types of UEs to figure out arrival rates for human to human type random access attempts and machine to machine type random access attempts. The base station selects one allocation mode out of two different allocation modes. In one mode, random access preambles are dedicatedly allocated to machine to machine type UES. In the other mode, preambles are commonly allocated to different types of UEs. The base station indicates the selected allocation mode by using system information block such as SIB2.Type: GrantFiled: July 20, 2012Date of Patent: August 5, 2014Assignee: LG Electronics Inc.Inventor: Ki Dong Lee
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Patent number: 8792440Abstract: The invention relates to methods for transmitting a buffer status report (BSR) in a mobile communication system, more particularly to the definition of rules for triggering, generating and transmitting buffer status reports. The invention also relates to a data transmission method utilizing new rules to decide data of which radio bearers is transmitted within a given transmission time interval. Moreover, the invention relates to scheduling method for radio resources that is taking into account additional scheduling—relevant information from the buffer status reporting and/or data transmission method.Type: GrantFiled: April 1, 2010Date of Patent: July 29, 2014Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Martin Feuersänger, Joachim Löhr, Christian Wengerter
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Patent number: 8780954Abstract: According to an embodiment, a wireless communication apparatus includes a communication control unit, a transmitting unit and a receiving unit. The communication control unit selects one frequency channel from a plurality of frequency channels and switches the frequency channel to be selected. The receiving unit is configured to receive a reception signal of the selected frequency channel from another wireless communication apparatus. The receiving unit includes an interference wave detection circuit configured to detect an interference wave signal of a detection frequency. The interference wave signal is included in an input signal received during an interference wave detection period. In the interference wave detection period, the reception signal is not received. The communication control unit masks a frequency channel related to the detection frequency among the plurality of frequency channels to create a frequency channel map. The communication control unit does not select the masked frequency channel.Type: GrantFiled: September 20, 2011Date of Patent: July 15, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Hiroyuki Fujiki
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Patent number: 8780898Abstract: A network or other type of processor operates to switch packets from an incoming cell stream to an outgoing cell stream. Each received and transmitted cell in a cell stream includes portions of packets, or complete packets or both. Packets are reassembled from incoming cells, and outgoing cells may be created from portions of packets, complete packets or both. The packets in the outgoing cells may be from incoming packets, switched reassembled packets or both. Each incoming and outgoing cell is associated with one virtual channel, and each virtual channel for an outgoing cell may be different from the virtual channel corresponding to the incoming cell or cells from which a packet was reassembled. Switched packets also may have their conversation identifications changed. Partial packets or partial cells that are awaiting completion are retained such that switching capabilities associated with the virtual channel and channel identification modifications may be used.Type: GrantFiled: October 31, 2002Date of Patent: July 15, 2014Assignee: Agere Systems LLCInventors: Michael Moriarty, Michael A. Roche, Leslie Zsohar
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Patent number: 8780713Abstract: An embodiment of a system for physical link adaptation in a wireless communication network such as e.g., a WLAN, selectively varies the physical mode of operation of the transmission channels serving the mobile stations in the network. The system includes an estimation module to evaluate transmission losses due to collisions as well as transmission losses due to channel errors over the transmission channel, and an adaptation module to select the physical mode of operation of the transmission channel as a function of the transmission losses due to collisions and to channel errors as evaluated by the estimation module.Type: GrantFiled: February 14, 2013Date of Patent: July 15, 2014Assignee: STMicroelectronics S.r.l.Inventors: Nicola Baldo, Federico Maguolo, Simone Merlin, Andrea Zanella, Michele Zorzi, David Siorpaes
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Patent number: 8780711Abstract: A coordinated back-off mechanism for automatic path selection for minimizing race conditions in hybrid communication networks is disclosed. A network device determines a stream medium utilization associated with packet streams for each priority class and network interface of a plurality of communication devices (including the network device). For each priority class and network interface, the communication devices are ranked according to the stream medium utilization. In response to determining that a medium utilization of a network interface exceeds a corresponding medium utilization threshold, the network device determines whether one of its network interfaces originates a packet stream with the greatest stream medium utilization value for a selected priority class. If so, path selection operations are executed to reduce the medium utilization associated with network interface below the medium utilization threshold.Type: GrantFiled: December 29, 2011Date of Patent: July 15, 2014Assignee: QUALCOMM IncorporatedInventors: Roshan R. Baliga, Etan G. Cohen, Michael B. Ryan
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Patent number: 8774124Abstract: Device coexistence within single user, multiple user, multiple access, and/or MIMO wireless communications. Different respective communication devices operating using different respective communication channels having different respective channel bandwidths may be implemented within a given communication system. For example, different respective communication devices may belong to different basic services sets (BSSs) (e.g., a 1 MHz BSS operating using channel bandwidths of 1 MHz, and a 2 MHz BSS operating using channel bandwidths of 2 MHz). To effectuate coexistence among different respective devices operating using different respective channel bandwidths, devices but longing to the 1 MHz BSS monitor for and listen for 2 MHz wide communication activity, and those 1 MHz BSS communication devices defer to any detected communication activity on any portion of the 2 MHz channel.Type: GrantFiled: April 23, 2012Date of Patent: July 8, 2014Assignee: Broadcom CorporationInventors: Ron Porat, Nihar Jindal, Matthew James Fischer
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Patent number: 8774815Abstract: The present invention relates to a resource allocation method and a resource allocation apparatus. When the resource allocation apparatus according to the present invention receives information of a plurality of bands selected from a plurality of mobile stations operating in a band adaptive modulation and coding mode, depending on the channel status, the apparatus arranges the mobile stations on the basis of the maximum number of logically adjacent bands included in the band information, and allocates the resource on the basis of the order of the arranged mobile stations.Type: GrantFiled: April 29, 2008Date of Patent: July 8, 2014Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research InstituteInventors: Eun-Kyung Kim, Kyung-Soo Kim
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Patent number: 8773965Abstract: Methods to improve the data carrying capacity of CATV DOCSIS systems and other communications systems are disclosed. Communications channels may be more efficiently spaced with reduced or absent guard bands by using receivers with adaptive signal cancellation methods, equalizing circuits, or polyphase filter banks and Fast Fourier Transform signal processing methods to correct for higher levels of cross-talk. QAM type communications channels may also be utilized on a synchronized two-transmitter at a time basis by adjusting the transmitters to predefined signal levels, such as +1, ?1, +½, ?½ to enable the combined signals to be distinguished at the receiver. These two methods may be combined to create a still higher data throughput system.Type: GrantFiled: May 23, 2012Date of Patent: July 8, 2014Assignee: Gainspeed, Inc.Inventor: Shlomo Selim Rakib
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Patent number: 8774085Abstract: A method is provided, in a wireless communications network comprising a source node, a destination node and at least one relay node, of selecting spatial subchannels for use. The method comprising the steps of: spatially decomposing channels into spatial subchannels; and selecting a subset of the subchannels for use that at least approximately maximises predicted throughput rate.Type: GrantFiled: July 14, 2008Date of Patent: July 8, 2014Assignee: Alcatel LucentInventors: Angeliki Alexiou, Federico Boccardi, Kai Yu
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Patent number: 8774250Abstract: A cellular communications system includes a plurality of base stations and a plurality of user devices. In use, each user device is associated with a base station and is operable to communicate with the associated base station over a communication channel having a plurality of frequency resources. Each user device has a respective initial allocation of said frequency resources. Each user device is operable to apply a frequency shift to its initially allocated frequency resource in accordance with a frequency hopping sequence. The user devices that are associated with the same base station are operable, in use, to use the same frequency hopping sequence and are synchronized with each other so that, at any point in time, a common frequency shift is applied by the user devices associated with the same base station. User devices associated, in use, with different base stations use different frequency hopping sequences.Type: GrantFiled: March 7, 2012Date of Patent: July 8, 2014Assignee: NEC CorporationInventors: Robert Arnott, Yassin Aden Awad
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Patent number: 8774103Abstract: A method and apparatus of selecting a number of uplink sounding sub-carriers are disclosed. One method includes estimating an uplink channel of between a base station and a subscriber. A time domain channel response is determined from the estimated uplink channel. A sub-carrier distribution of uplink sounding sub-carriers is selected based on characteristics of the time domain channel response, wherein the distribution defines a spacing of pilot sub-carriers within the uplink sounding symbol. The subscriber transmits uplink sounding symbols having the selected sub-carrier distribution.Type: GrantFiled: March 26, 2008Date of Patent: July 8, 2014Assignee: Broadcom CorporationInventors: Sriram Mudulodu, Djordje Tujkovic, Arogyaswami Paulraj
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Patent number: 8774100Abstract: Various embodiments are described relating to resource management techniques for wireless networks. For example, a resource deficiency may be determined for a requesting wireless node in a wireless network. A resource request may be sent from the requesting node to one or more other wireless nodes, and a resource reply including a resource status may be received from one or more of the other wireless nodes in response to the resource request. One of the other nodes from which to obtain a resource may be selected based on the resource status for the selected node, and a resource update message may be sent from the requesting wireless node to the selected wireless node to facilitate a reallocation of resources from the selected node to the requesting node, the resource update message indicating an amount of resources to be reallocated from the selected node to the requesting node.Type: GrantFiled: September 14, 2007Date of Patent: July 8, 2014Assignee: Nokia CorporationInventors: He Xiaoben, Klaus Doppler, Juha Salokannel, Carl Simon Wijting, Antti Sorri, Harald Kaaja
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Patent number: 8774111Abstract: Systems, methods, and computer-readable media for a fair and efficient channel allocation and spectrum sensing for cognitive transmission in wireless networks are presented herein. A base station can send a cognitive user device a request to sense an idle channel associated with a primary network, and in response to receiving a willingness indicator or an attribute from the cognitive user device and/or a number of idle channels associated with the primary network sensed by the cognitive user device, the base station can assign the cognitive user device to transmit data on the idle channel associated with the primary network.Type: GrantFiled: January 3, 2012Date of Patent: July 8, 2014Assignee: Dynamic Invention LLCInventors: Chunhua Sun, Wei Chen, Khaled Ben Letaief
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Patent number: 8767681Abstract: One aspect of the teachings presented herein provides advantages for sending precoder selection feedback from a transceiver to another transceiver, for use by the other transceiver as precoding recommendations. The transceiver generates two types of precoder selection feedback, where one type uses a smaller signaling payload than the other and therefore provides a distinct reduction in the signaling overhead associated with reporting precoding recommendations. The transceiver uses the reduced-overhead type of reporting when reporting at certain times, or on certain channels, or in response to control signaling. In one example, a UE in an LTE network sends precoder information to an eNodeB on the PUCCH by sending smaller-range index values that index only a subset of precoders, but sends full-range index values when reporting on the PUSCH, which index a larger set of precoders.Type: GrantFiled: April 6, 2011Date of Patent: July 1, 2014Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: David Hammarwall, George Jöngren
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Patent number: 8767732Abstract: A method and apparatus are described including assigning sub-channels to different multicast sessions under the assumption that in each session all sub-channels are allocated to all users of that session and power is equally allocated to each sub-channel, then for each session assigning the sub-channels to the users of that session under the assumption that the same amount of power is allocated to each sub-channel, then allocating remaining power to certain sub-channels within the session to increase multicast rate, finally modifying the sub-channel allocations among the multicast sessions depending on the sub-channel and power allocation within each multicast session.Type: GrantFiled: March 5, 2009Date of Patent: July 1, 2014Assignee: Thomson LicensingInventors: Mingquan Wu, Hang Liu, Saurabh Mathur, Kagan Bakanoglu
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Patent number: 8767643Abstract: In a mobile communication method according to the present invention, a mobile station (UE) receives downlink data transmitted from a radio base station by using a downlink radio resource assigned to the mobile station by predetermined scheduling information, in a predetermined cycle. The method includes the steps: (A) notifying, to the mobile station (UE), the predetermined cycle and information on the downlink radio resource; (B) notifying, to the mobile station (UE), the predetermined scheduling information; and (C) transmitting downlink data in the predetermined cycle by using the downlink radio resource assigned by the predetermined scheduling information, the transmission starting at a certain point determined on the basis of the received predetermined scheduling information. In the step (C), the predetermined scheduling information is discarded, when the information on the downlink radio resource and information notified by the predetermined scheduling information are inconsistent with each other.Type: GrantFiled: April 22, 2009Date of Patent: July 1, 2014Assignee: NTT DoCoMo, Inc.Inventors: Hiroyuki Ishii, Anil Umesh
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Patent number: 8767606Abstract: A method of transmitting and receiving control information in a wireless communication system is disclosed. The method of receiving control information related to a specific point-to-multipoint service in a user equipment of a wireless communication system comprises receiving a notification message including indication information and an identifier identifying the point-to-multipoint service from a network, the indication information indicating at least one downlink channel related to the specific point-to-multipoint service among a plurality of downlink channels established for transmission of control information for at least one or more point-to-multipoint service, and receiving at least one downlink channel indicated by the indication information.Type: GrantFiled: August 8, 2008Date of Patent: July 1, 2014Assignee: LG Electronics Inc.Inventors: Seung June Yi, Young Dae Lee, Sung Duck Chun, Sung Jun Park
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Patent number: 8761193Abstract: A wireless communication device is disclosed that is capable of utilizing bandwidth outside of its allocated bandwidth in order to maximize frequency coverage. The allocated band is separate from a neighboring band by a guard band. The device performs a scan of the neighboring band in order to determine an activity level within the neighboring band. Based on the determined activity level, the device expands its communication frequency range to include the guard band and/or the neighboring band. Once expanded, the device periodically rescans the neighboring band in order to determine whether the device must contract its frequency band out of the expanded area. The device can also receive activity level information of the neighboring band from a server via a common network infrastructure, and can coordinate expansion with other devices.Type: GrantFiled: March 16, 2012Date of Patent: June 24, 2014Assignee: Broadcom CorporationInventors: James Bennett, Jeyhan Karaoguz