公开(公告)号：EP1712101B1

公开(公告)日：2011-12-28

申请号：EP05702394.7

申请日：2005-02-02

申请人： Nokia Corporation

发明人： RINNE, Mikko ,  LAPPETELAINEN, Antti ,  SEPPINEN, Pauli ,  OJALA, Jussi ,  PARSSINEN, Aarno ,  KAUNISTO, Risto

IPC分类号： H04W16/02 ,  H04W16/12 ,  H04W16/06

CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W16/06

摘要： A method, device, and system that use narrowband channels to provide higher re-use without multiplying the operator spectrum requirement. If a communication system supports variable carrier bandwidth channels, the narrow channel capacity can be divided among adjacent cells to provide higher re-use.

公开(公告)号：EP1611689A2

公开(公告)日：2006-01-04

申请号：EP04712635.4

申请日：2004-02-19

申请人： Nokia Corporation

发明人： VEPSALAINEN, Jussi ,  PARSSINEN, Aarno ,  SEPPINEN, Pauli ,  GUSTAFSSON, Mikael

IPC分类号： H04B1/10

CPC分类号： H04B1/30

摘要： A radio frequency receiver (30, 32), includes a first component block (12, 16, 18, 20); a second compensating component block (22, 22a-22b, 34); and control circuitry (26) operable for controlling the state (e.g., load, bias, gain) of the first component block. When the control circuitry (26) causes a change in the state of the first component block that is expected to induce a DC offset in a signal, the control circuitry (26) changes the state of the second component block to compensate for an estimate of the DC offset. Preferably, the second component block is a filter (22, 22a-22b, 34), that temporarily changes from a nominal cutoff frequency to an elevated cutoff frequency so that voltage will settle quickly and accurately at an estimated voltage, the estimated voltage being predetermined and based on the state change to the first component block. A method is also described for practicing the invention.

公开(公告)号：EP2160842A1

公开(公告)日：2010-03-10

申请号：EP08759941.1

申请日：2008-05-22

申请人： Nokia Corporation

发明人： PIIPPONEN, Antti ,  PARSSINEN, Aarno ,  SIEVANEN, Konsta ,  ZETTERMAN, Tommi ,  RAISKILA, Kalle

IPC分类号： H04B1/40

CPC分类号： H04B1/406 ,  H04B1/0003

摘要： A radio frequency apparatus comprising an interface configured to receive a command from a radio protocol stack. A command generator configured to generate a plurality of commands from said received command is provided. The apparatus also has configurable hardware, said hardware having a configuration which is controlled in dependence on said generated commands and being arranged to at least one of transmit and receive a radio frequency signal.

公开(公告)号：EP1712101A1

公开(公告)日：2006-10-18

申请号：EP05702394.7

申请日：2005-02-02

申请人： Nokia Corporation

发明人： RINNE, Mikko ,  LAPPETELAINEN, Antti ,  SEPPINEN, Pauli ,  OJALA, Jussi ,  PARSSINEN, Aarno ,  KAUNISTO, Risto

IPC分类号： H04Q7/36

CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W16/06

摘要： A method, device, and system that use narrowband channels to provide higher re-use without multiplying the operator spectrum requirement. If a communication system supports variable carrier bandwidth channels, the narrow channel capacity can be divided among adjacent cells to provide higher re-use.

公开(公告)号：EP1486012A1

公开(公告)日：2004-12-15

申请号：EP03744461.9

申请日：2003-03-12

申请人： Nokia Corporation

发明人： SEPPINEN, Pauli ,  PARSSINEN, Aarno ,  GUSTAFSSON, Mikael ,  MAKITALO, Mika

IPC分类号： H04B7/00 ,  H04B1/10

CPC分类号： H04B17/21 ,  H04B1/30 ,  H04B17/20 ,  H04B17/318

摘要： A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) of the RF receiver; measuring a downconverted response of the receiver at a plurality of different frequencies of the calibration signal, or measuring the downconverted response of the receiver at a plurality of different LNA tuning combinations using a fixed calibration frequency, and at least one of tuning a resonance frequency of at least one LNA resonator based on the measured downconverted response so as to compensate at least for variations in component values that comprise the at least one resonator, or adjusting the linearity of the receiver. In one embodiment the calibration signal is generated using one of a noise source located upstream from the LNA and a transmitter signal, having an AM component, that leaks into the receiver through a duplex filter.