公开(公告)号：CA2728838A1

公开(公告)日：2010-04-08

申请号：CA2728838

申请日：2009-08-24

Applicant: MOTOROLA INC

Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

IPC: H04W16/14 ,  H04W72/02

Abstract: A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of cri-teria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) net-work to operate within an incumbent network's spectrum.

公开(公告)号：CA2693483C

公开(公告)日：2013-10-22

申请号：CA2693483

申请日：2008-07-30

Applicant: MOTOROLA INC

Inventor： GURNEY DAVID P ,  CHAUDHRI APOORV ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

IPC: H04W16/14

Abstract: Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 152) and at least one cognitive radio (CR) system (105) is provided. The incumbent system's system parameters and CR system's operational requirements are copied to a mirrored database (106B). The mirrored database (106B) is controlled by a either a central authority (108) or a database manager having delegated authority (508). The mirrored database (106B) is accessed by the CR system (105). The mirrored database (106B) can be modified and updated by the central authority (108) or delegated database manager (508) to correct for interference detected in the incumbent system caused (152) by the cognitive radio system (105). The cognitive radio system (105) utilizes the updated mirrored database (106B) to avoid interfering with the incumbent system (102, 152) to determine CR system operating parameters thus enhancing the ability to share spectrum.

公开(公告)号：CA2728838C

公开(公告)日：2014-07-15

申请号：CA2728838

申请日：2009-08-24

Applicant: MOTOROLA INC

Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

IPC: H04W16/14 ,  H04W72/02

Abstract: A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of cri-teria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) net-work to operate within an incumbent network's spectrum.

公开(公告)号：AU2009300250A1

公开(公告)日：2010-04-08

申请号：AU2009300250

申请日：2009-08-24

Applicant: MOTOROLA INC

Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

IPC: H04W16/14 ,  H04W72/02

Abstract: A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of criteria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) network to operate within an incumbent network's spectrum.

公开(公告)号：CA2693483A1

公开(公告)日：2009-02-05

申请号：CA2693483

申请日：2008-07-30

Applicant: MOTOROLA INC

Inventor： GURNEY DAVID P ,  CHAUDHRI APOORV ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

IPC: H04W16/14

Abstract: Efficient frequency spectrum sharing between at least one incumbent communication system(s) (102, 152) and at least one cognitive radio (CR) system (105) is provided. The incumbent system's system parameters and CR system's operational requirements are copied to a mirrored database (106B). The mirrored database (106B) is controlled by a either a central authority (108) or a database manager having delegated authority (508). The mirrored database (106B) is accessed by the CR system (105). The mirrored database (106B) can be modified and updated by the central authority (108) or delegated database manager (508) to correct for interference detected in the incumbent system caused (152) by the cognitive radio system (105). The cognitive radio system (105) utilizes the updated mirrored database (106B) to avoid interfering with the incumbent system (102, 152) to determine CR system operating parameters thus enhancing the ability to share spectrum.

公开(公告)号：WO2010039352A3

公开(公告)日：2010-05-27

申请号：PCT/US2009054720

申请日：2009-08-24

Applicant: MOTOROLA INC ,  CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

Inventor： CHAUDHRI APOORV ,  GURNEY DAVID P ,  KUFFNER STEPHEN L ,  RAO YADUNANDANA N ,  SIMMS MATTHEW E

IPC: H04W16/14 ,  H04W72/02

CPC classification number: H04W72/082 ,  H04W4/02 ,  H04W8/205 ,  H04W16/14 ,  H04W48/20 ,  H04W72/02

Abstract: A technique for a secondary communication system to utilize spectrum designated to another (or primary) communication system is provided. By ranking a plurality of secondary base stations based on base station transmit power, calculated required transmit power and path loss, a set of criteria is developed for selecting a highest ranked secondary base station for operation within a primary's spectrum. The ranking may be adapted based on mobility of the secondary's subscriber; and as such the secondary system communicates within the primary's spectrum using the adaptively ranked base stations. Channel selection may also be ranked. The technique and apparatus allows a cognitive radio (CR) network to operate within an incumbent network's spectrum.

Abstract translation: 提供了一种次要通信系统利用指定给另一（通信）通信系统的频谱的技术。 通过基于基站发射功率，计算的所需发射功率和路径损耗对多个次基站进行排序，开发了用于选择最高等级次级基站以在主频谱内操作的一组标准。 可以基于辅助用户的移动性来调整排名; 并且因此次级系统使用自适应排名的基站在主频谱内进行通信。 频道选择也可能被排名。 该技术和装置允许认知无线电（CR）网络在现有网络的频谱范围内运行。