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| Number | Title | Issue Date |
| 8175071 | Intercell interference mitigation apparatus and method There is provided an intercell interference mitigation apparatus for use in a terminal having a single reception antenna in a multi-cell downlink of an OFDMA system. The apparatus includes one or more parallel interference cancellers for canceling intercell interfer... | 05/08/2012 |
| 8169994 | System and method for frequency division multiple access communications A method and system for wireless frequency division multiple access communications in the uplink and/or downlink directions, having an improved pilot insertion scheme for single carrier based communications is provided. A first time duration for transmission of a da... | 05/01/2012 |
| 8160046 | Control channel assignment in a wireless communication network The disclosed embodiments provide for methods and systems for allocating a plurality of users on a control channel in a wireless communication network. In one aspect, a method for allocating a plurality of users on a control channel includes assigning a first number... | 04/17/2012 |
| 8155100 | Method and apparatus for transmitting and receiving different signal types in communication systems A method and apparatus for multiplexing a reference signal from a User Equipment (UE), not having any other signal transmission in the respective Transmission Time Interval (TTI), with a reference signal from another UE also having data transmission in the respectiv... | 04/10/2012 |
| 8130741 | Method for resource allocation with rectangular bursts A method is provided for allocation downlink bursts in a data region of a OFDMA data system, such data region having along one axis thereof increasing logical sub channel numbers and along another axis thereof increasing OFDMA symbol numbers, and wherein the burst a... | 03/06/2012 |
| 8125972 | Method and apparatus for requesting and transmitting characteristic indicators in a wireless communications network A method of requesting a plurality of different characteristic indicators from a second communications apparatus in a wireless communications network including a first communications apparatus and a plurality of such second communications apparatuses which communica... | 02/28/2012 |
| 8121106 | Method and arrangement for managing a reference signal for uplink channel estimation in a communications system An object of the present invention is to provide a mechanism of measuring a reference signal that is less over head consuming and less time consuming. The object is achieved by a method for managing uplink channel estimation in a base station. The base station is co... | 02/21/2012 |
| 8116294 | RF bus controller A radio frequency (RF) bus controller includes an interface and a processing module. The interface is coupled for communicating intra-device RF bus access requests and allocations. The processing module is coupled to receive an access request to an RF bus via the in... | 02/14/2012 |
| 8107455 | Method for transmitting data in multiple antenna system A method of sending data in a multiple antenna system according to an aspect of the present invention includes performing precoding on received symbols based on a second codebook generated from a first codebook for a plurality of transmission antennas and sending th... | 01/31/2012 |
| 8102833 | Method for transmitting uplink signals A method for transmitting uplink signals, which include ACK/NACK signals, control signals other than the ACK/NACK signals, and data signals, is disclosed. The method comprises serially multiplexing the control signals and the data signals; sequentially mapping the m... | 01/24/2012 |
| 8098644 | Method and apparatus for uplink resource allocation in a frequency division multiple access communication system To address the need for a resource allocation scheme that results in a better tradeoff between the cell-edge performance and the overall spectral efficiency, a communication system is provided that allocates uplink transmit power to user equipment (UEs) based on a f... | 01/17/2012 |
| 8077692 | Enhanced frequency division multiple access for wireless communication Enhanced frequency division multiple access (EFDMA) is a multiplexing scheme that sends modulation symbols in the time domain and achieves a lower PAPR than OFDM. An EFDMA symbol occupies multiple subband groups that are spaced apart in a frequency band, with each s... | 12/13/2011 |
| 8077691 | Pilot transmission and channel estimation for MISO and MIMO receivers in a multi-antenna system A transmitter generates multiple composite pilots with a training matrix and a gain matrix. Each composite pilot includes multiple training pilots generated with multiple columns of the training matrix and scaled with multiple gain elements in a column of the gain m... | 12/13/2011 |
| 8054818 | HARQ method in a mobile communication system A method for allocating resources in an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system where data is transmitted by Hybrid Automatic Repeat reQuest (HARQ) is provided, in which a multiplexing mode is selected for multiplexing a Dis... | 11/08/2011 |
| 8036199 | OFDMA with adaptive subcarrier-cluster configuration and selective loading A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating a... | 10/11/2011 |
| 8031688 | Partitioning of frequency resources for transmission of control signals and data signals in SC-FDMA communication systems A method for the partitioning frequency resources used in the transmission of control signals and data signals by user equipments in a communication system. The control signals and data signals are for periodic transmission and dynamic transmission. Also provided is... | 10/04/2011 |
| 8009656 | Apparatus and method for providing feedback information in response to subcarrier reception A radio communication apparatus capable of alleviating a burden in setting a transmission format and suppressing increases in the scale of the apparatus. In this apparatus, space multiplexing adaptability detection section (108) detects space multiplexing tra... | 08/30/2011 |
| 7990941 | Adaptive antenna system signal detection A system and method for processing signals in a communication system is disclosed herein. The system and method comprises processing steps and processing logic for generating a downlink subframe comprising a preamble and a plurality of data bursts within a predeterm... | 08/02/2011 |
| 7983237 | Method and apparatus for sequence distributing and sequence processing in communication system A sequence distributing and sequence processing method and apparatus in a communication system are provided. The sequence distributing method includes the following steps of: generating sequence groups including a number of sequences, the sequences in the sequence g... | 07/19/2011 |
| 7974258 | Adaptive mode transmitter for PAPR reduction and link optimization An adaptive mode transmitter enables either OFDMA or SC-FDMA modulation schemes to be used during transmission of a wireless signal, such as during mobile phone use. The modulation scheme is selected automatically, and is based on characteristics of the transmitting... | 07/05/2011 |
| 7961699 | Apparatus and methods of transmitting and receiving a multimedia-broadcast multicast service (MBMS) channel A transmitting apparatus which transmits a transmit symbol in orthogonal-frequency division multiplexing (OFDM) is disclosed. The transmitting apparatus includes a unit which provides a unicast channel; a unit which provides a multimedia broadcast multicast service ... | 06/14/2011 |
| 7961697 | Method and apparatus for estimating timing error and frequency offset of HPi system The present invention relates to a method for estimating a timing error and a frequency offset in a high-speed portable Internet system and a method thereof. A predetermined preamble symbol is added to an OFDM frame to be transmitted by a transmitter according to an... | 06/14/2011 |
| 7961696 | Preambles in OFDMA system The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble,... | 06/14/2011 |
| 7961698 | Methods and apparatus for controlling interference to broadcast signaling in a peer to peer network Methods and apparatus related to broadcasting data and interference management in a peer to peer wireless communications network are described. Scheduling of traffic air link resources is performed on a slot by slot basis in a decentralized manner. Wireless devices ... | 06/14/2011 |
| 7940740 | Apparatus and method for communicating and processing a positioning reference signal based on identifier associated with a base station A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transm... | 05/10/2011 |
| 7929511 | Method and apparatus for producing/recovering OFDM/OFDMA signals The present invention discloses a method of producing a multi-layered OFDM symbol using a plurality of small IFFT blocks. The produced OFDM symbol is able to reduce complexity in performing IFFT or FFT while maintaining orthogonality of a related art OFDM symbol. In... | 04/19/2011 |
| 7924803 | Antenna selection for mobile stations in OFDMA networks A method and a system for selecting antennas in an orthogonal frequency division multiple access (OFDMA) network. The network includes a base station and mobile stations. The mobile station includes multiple antennas. The base station and the mobile stations communi... | 04/12/2011 |
| 7907588 | Method of reducing a peak to average power ratio of a modulated signal The invention relates to a method of reducing a peak to average power ratio of a signal, wherein the signal comprises data that is designated for transmission to a sector of a plurality of sectors, and wherein the method comprises the steps of selecting a first subs... | 03/15/2011 |
| 7903628 | Configurable pilots in a wireless communication system Techniques for transmitting configurable pilots in a wireless communication system are described. The placement of pilots is determined based on an assignment of resources for transmission. Different placements of pilots are used for different assignments of resourc... | 03/08/2011 |
| 7903629 | Hierarchically modulated OFDM communication from a satellite-based transmitter with reduced secondary data loss from clipping High priority data and low priority digital data are transmitted as primary and secondary data in hierarchically modulated, orthogonal frequency division multiplexing (OFDM) from an earth-orbiting satellite. To enable the transmitter amplifier to be operated with le... | 03/08/2011 |
| 7894415 | Apparatus and method for transmitting/receiving resource allocation information in a communication system An apparatus and method for transmitting/receiving resource allocation information in a communication system are provided. In the method of transmitting resource allocation information, at least one of a plurality of FDD UL FA resources is divided into a plurality o... | 02/22/2011 |
| 7869415 | Method for physical control format indicator channel mapping A method of mapping symbols of a physical control format indicator channel (PCFICH) is described. A start position of a resource element to map the symbols for the PCFICH is determined by flooring a value, obtained by multiplying the number of resource blocks by a v... | 01/11/2011 |
| 7835339 | Dynamic channel assignment in wireless ad hoc networks A method, apparatus and computer program product for performing dynamic channel assignment in wireless ad hoc networks (wireless mesh and infrastructure BSSs) is presented. A fixed channel assignment order is determined for each link of the network, the fixed channe... | 11/16/2010 |
| 7830855 | Method and apparatus for data allocation in an overlap-enabled communication system A communication system is dynamically configured to use some or all of the communication channel bandwidth. Regions of the communication channel are prioritized, and bandwidth is allocated in accordance with priorities and requested data rate. ... | 11/09/2010 |
| 7822007 | Transmitter in FDMA communication system and method for configuring pilot channel The present invention relates to a transmitter in a frequency division multiple access communication system. The transmitter generates a plurality of pilot symbols, and groups the plurality of pilot symbols into a plurality of groups according to a location of a sub... | 10/26/2010 |
| 7792088 | Method for partitioning resource space, assigning physical channel, and allocating power in OFDMA-based cellular system Disclosed is a method for partitioning resource spaces, and allocating physical channels and power in an OFDMA-based cellular system. A resource within a slot is partitioned into resource spaces in common in a plurality of adjacent cells, and the partitioned resourc... | 09/07/2010 |
| 7787433 | Wireless communication method, wireless communication system using the same, and wireless terminal thereof A business wireless communication system, which includes both a repeater relay station of a wireless network using a repeater system and an FDMA relay station of a wireless network using FDMA system, comprises means for ensuring that the repeater relay station, when... | 08/31/2010 |
| 7782829 | Energy-efficient link adaptation and resource allocation for wireless OFDMA systems An energy-efficient framework for active transmission in OFDMA-based long-range wireless networks is disclosed. This frame-work is based on using energy-aware metrics for resource allocation and link adaptation. By casting the optimal energy-efficient resource alloc... | 08/24/2010 |
| 7768987 | Apparatus and method for operating frequency resources in a mobile communication system A frequency resource operating apparatus and method for transmitting and receiving data at a different hopping pattern speed according to a CSI in a BWA communication system are provided. In a method of transmitting and receiving data using CSI in a mobile communica... | 08/03/2010 |
| 7764663 | Method for minimizing interference in a cellular OFDM communications system The invention concerns a method for minimizing the interference in a cellular OFDM communication network, wherein mobile stations are divided into groups according to the radio channel quality, the interference levels of mobile stations which belong to a first group... | 07/27/2010 |
