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公开(公告)号：GB2354911B
公开(公告)日：2001-09-26
申请号：GB0017421
申请日：2000-07-14
Applicant: MOTOROLA INC
Inventor： ROTSTEIN RON , CORKE ROBERT J , PRYSBY DANIEL G , LUZ YUDA YEHUDA
Abstract: A method of reducing power consumption in a communication device includes a step of acquiring a signal on a common pilot channel of a radio communication system. A next step includes detecting predetermined bits in the signal on the common pilot channel indicating activity on paging channels of the radio communication system. When no paging channel activity is indicated in the second step, a last step includes powering down portions of the electrical circuitry of the communication device so as to reduce power consumption, and when paging channel activity is indicated in the second step, a next step includes powering up portions of the electrical circuitry of the communication device such that those paging channels indicating activity are monitored by the communication device.
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公开(公告)号：FR2796795A1
公开(公告)日：2001-01-26
申请号：FR0009162
申请日：2000-07-13
Applicant: MOTOROLA INC
Inventor： ROTSTEIN RON , CORKE ROBERT J , PRYSBY DANIEL G , LUZ YEHUDA
Abstract: The telephone includes a pilot circuit monitoring subscriber search activity to save power when no such activity is taking place. The power saving system comprises a first stage of collecting a signal from a communication base on a pilot channel. The next stage includes the detection of predetermined bits within the signal on the common pilot channel which indicate the occurrence of a search for specific users on the communication system. When no user search activity is detected within this second stage, the final stage operates to put certain electrical circuits of the mobile telephone into a low power standby mode, thereby reducing overall power consumption. When activity is detected in the user search component of the received signal, the telephone circuits are switched back to full power to enable receipt of an incoming call.
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公开(公告)号：CA2679677C
公开(公告)日：2013-02-19
申请号：CA2679677
申请日：2008-03-12
Applicant: MOTOROLA INC
Inventor： RAO YADUNANDANA N , CHAUDHRI APOORV , CORKE ROBERT J , DELVE TREFOR J , PRYSBY DANIEL G , WARE CHRISTOPHER G , ZELEZNIK MICHAEL F
Abstract: A method (20,200) and apparatus (10) for detecting and identifying spectrum opportunities, including the steps of communicating a location of at least one node (12) to at least one base station (14) (24), transmitting a list of at least one channel from the at least one base station (14) to the at least one node (12) (26), and sensing the at least one channel from the list by the at least one node (12) (34). The method (20,200) also includes the steps of determining if the at least one channel is in use, and if the at least one channel is in use, determining the user of the at least one channel that is in use (38).
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公开(公告)号：CA2728533A1
公开(公告)日：2010-01-07
申请号：CA2728533
申请日：2009-06-19
Applicant: MOTOROLA INC
Inventor： RAO YADUNANDANA N , CHAUDHRI APOORV , CORKE ROBERT J
Abstract: Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 104) and at least one cognitive radio (CR) system (106, 108) is provided. The CR unit includes OFDM detection (216) for detecting the presence of OFDM signals which indicate the presence of an incumbent communication system within the shared spectrum. The CR system (106) updates channel occupancy information in response to the detected OFDM signals so as not to interfere with the incumbent communication systems (102, 104).
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公开(公告)号：GB2440094B
公开(公告)日：2009-12-16
申请号：GB0722373
申请日：2006-03-31
Applicant: MOTOROLA INC
Inventor： FRANK COLIN D , CORKE ROBERT J , JASPER STEVEN C , MAKHLOUF ISAM R
Abstract: A receiver configured for: a) receiving (410) a first OFDM symbol and generating a plurality of demodulated symbols for the first OFDM symbol; b) generating (420) decoder output code symbols corresponding to a subset of the plurality of demodulated symbols; c) determining (430) that a set of the decoder output code symbols make up a set of reference symbols corresponding to at least a portion of the subset of the plurality of demodulated symbols; d) generating (440) the set of reference symbols; e) generating (450) a set of channel estimates based on the set of reference symbols and the at least a portion of the subset of the plurality of demodulated symbols, for use in decoding a current OFDM symbol; and f) repeating steps b-e until a channel estimate for each demodulated symbol corresponding to the first OFDM symbol has been generated.
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Patent Agency Ranking
公开(公告)号：AU2003299950A8
公开(公告)日：2004-07-29
申请号：AU2003299950
申请日：2003-12-23
Applicant: MOTOROLA INC
Inventor： CORKE ROBERT J , FRANK COLIN D
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公开(公告)号：CA2679677A1
公开(公告)日：2008-10-09
申请号：CA2679677
申请日：2008-03-12
Applicant: MOTOROLA INC
Inventor： RAO YADUNANDANA N , PRYSBY DANIEL G , WARE CHRISTOPHER G , ZELEZNIK MICHAEL F , CHAUDHRI APOORV , CORKE ROBERT J , DELVE TREFOR J
Abstract: A method (20,200) and apparatus (10) for detecting and identifying spectr um opportunities, including the steps of communicating a location of at leas t one node (12) to at least one base station (14) (24), transmitting a list of at least one channel from the at least one base station (14) to the at le ast one node (12) (26), and sensing the at least one channel from the list b y the at least one node (12) (34). The method (20,200) also includes the ste ps of determining if the at least one channel is in use, and if the at least one channel is in use, determining the user of the at least one channel tha t is in use (38).
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公开(公告)号：CA2532353A1
公开(公告)日：2005-05-06
申请号：CA2532353
申请日：2004-07-16
Applicant: MOTOROLA INC
Inventor： SILVERMAN SHMUEL , ROTSTEIN RON , CORKE ROBERT J
IPC: H04L9/00 , H04L1/16 , H04L1/18 , H04L9/08 , H04L9/12 , H04L9/28 , H04L12/28 , H04L12/56 , H04Q7/32
Abstract: A transmitting device (100) transmits a first packet, comprising a second encryption vector that is encrypted using a first encryption vector. The transmitting device (100) transmits a second packet that is encrypted using the second encryption vector if an acknowledgement message is received withi n a predetermined time after transmitting the first packet; otherwise, the fir st packet is re-transmitted. Upon receipt of the first packet, a receiving devi ce (102) decrypts the first packet using the first encryption vector and transmits the acknowledgement message. Upon receipt of the second packet; th e receiving device (102) attempts to decrypt a portion of the second packet using the first and second encryption vectors. If the portion of the second packet was successfully decrypted using the first encryption vector, the receiving device (102) re-transmits the acknowledgement message for the firs t packet; otherwise, it transmits an acknowledgement message for the second packet.
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公开(公告)号：FR2796795B1
公开(公告)日：2004-02-27
申请号：FR0009162
申请日：2000-07-13
Applicant: MOTOROLA INC
Inventor： ROTSTEIN RON , CORKE ROBERT J , PRYSBY DANIEL G , LUZ YEHUDA
Abstract: A method of reducing power consumption in a communication device includes a step of acquiring a signal on a common pilot channel of a radio communication system. A next step includes detecting predetermined bits in the signal on the common pilot channel indicating activity on paging channels of the radio communication system. When no paging channel activity is indicated in the second step, a last step includes powering down portions of the electrical circuitry of the communication device so as to reduce power consumption, and when paging channel activity is indicated in the second step, a next step includes powering up portions of the electrical circuitry of the communication device such that those paging channels indicating activity are monitored by the communication device.
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公开(公告)号：GB2354911A
公开(公告)日：2001-04-04
申请号：GB0017421
申请日：2000-07-14
Applicant: MOTOROLA INC
Inventor： ROTSTEIN RON , CORKE ROBERT J , PRYSBY DANIEL G , LUZ YUDA YEHUDA
Abstract: A method of reducing power consumption in a communication device includes a step of acquiring (204) a signal on a common pilot channel of a radio communication system. A next step includes detecting (206) predetermined bits in the signal on the common pilot channel indicating activity on paging channels of the radio communication system. When no paging channel activity is indicated in the second step, a last step includes powering down (208) portions of the electrical circuitry of the communication device so as to reduce power consumption, and when paging channel activity is indicated in the second step, a next step includes powering up (210) portions of the electrical circuitry of the communication device such that those paging channels indicating activity are monitored by the communication device.
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