DYNAMIC COVERAGE ADJUSTMENT IN A MULTI-CARRIER COMMUNICATION SYSTEM

    公开(公告)号:MY161971A

    公开(公告)日:2017-05-31

    申请号:MYPI2010004840

    申请日:2009-05-15

    Applicant: QUALCOMM INC

    Abstract: TECHNIQUES FOR DYNAMICALLY VARYING COVERAGE IN A MULTI-CARRIER COMMUNICATION SYSTEM (100) ARE DESCRIBED.A SECTOR (X,Y) MAY OPERATE ON MULTIPLE CARRIERS.THE SECTOR (X,Y) MAY VARY COVERAGE ON A GIVEN CARRIER K BASED ON ITS LOAD, SO THAT LESS INTERFERENCE MAY BE CAUSED TO OTHER SECTORS (X,Y) WHEN THE SECTOR (X,Y) LOAD IS LIGHT.IN ONE DESIGN, THE SECTOR (X,Y) MAY COMMUNICATE ON A FIRST CARRIER AT A FIRST TRANSMIT POWER LEVEL AND ON A SECOND CARRIER AT A SECOND TRANSMIT POWER LEVEL EQUAL TO OR LOWER THAN THE FIRST TRANSMIT POWER LEVEL.THE SECTOR (X,Y) MAY VARY THE SECOND TRANSMIT POWER LEVEL BASED ON ITS LOAD TO VARY THE COVERAGE OF THE SECOND CARRIER.THE SECTOR (X,Y) MAY REDUCE THE SECOND TRANSMIT POWER LEVEL TO ZERO OR A LOW LEVEL IF THE SECTOR LOAD IS LIGHT.THE SECTOR MAY ALSO VARY THE SECOND TRANSMIT POWER LEVEL BASED ON A FUNCTION OF SECTOR LOAD OR A SWITCHING PATTERN.

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    公开(公告)号:BRPI0115930B1

    公开(公告)日:2016-12-27

    申请号:BR0115930

    申请日:2001-12-04

    Applicant: QUALCOMM INC

    Abstract: "método e equipamento para o handoff de uma conexão sem fio de serviços de dados em pacotes". são descritos um método e um equipamento novos para efetuar o handoff total (seamless) de uma estação móvel (ms) entre redes de acesso rádio (rans) que usam diferentes tipos de interfaces sem fio. as modalidades descritas habilitam uma estação móvel a ser repassada entre diferentes rans sem causar ambigüidades de roteamento e sem perda substancial de dados de rede. ao se movimentar da área de cobertura de uma primeira ran usando uma primeira interface sem fio para a área de cobertura de uma segunda ran usando uma segunda interface sem fio, uma estação móvel determina se ambigüidades de roteamento podem resultar da mudança de ran e, com base em tal determinação, aciona um re-registro (re-registration) de seu endereço de rede. um agente externo (fa - foreign agent) dentro de um nodo servidor de dados em pacotes (pdsn) monitora registros registrados novamente de endereços de rede que estão sendo criados para a mesma estação móvel. com base em tal determinação, o pdsn finaliza conexões de rede r-p redundantes que resultam do movimento da estação móvel entre diferentes rans.

    METHOD AND APPARATUS FOR INTERFERENCE MANAGEMENT

    公开(公告)号:CA2819435C

    公开(公告)日:2016-11-01

    申请号:CA2819435

    申请日:2008-08-15

    Applicant: QUALCOMM INC

    Abstract: In some aspect restricted access nodes are assigned to a designated common channel while access terminals that are in active communication with a macro access node may selectively be assigned to the designated channel. In some aspect an access terminal associated with macro access node may perform a handoff to a different carrier when the access terminal is in the vicinity of a coverage area of a restricted access node. In some aspect an access terminal associated with a macro access node may perform a handoff to a different carrier based on location information. In some aspect access to a restricted access node is controlled based on policy and/or based on operation of an access terminal associated with the restricted access node..

    CONNECTED-STATE RADIO SESSION TRANSFER IN WIRELESS COMMUNICATION SYSTEMS

    公开(公告)号:CA2569312C

    公开(公告)日:2015-04-21

    申请号:CA2569312

    申请日:2005-06-01

    Applicant: QUALCOMM INC

    Abstract: Embodiments described herein relate to connected-state radio session transfer in wireless communications. A source access network controller may lock a source radio session associated with an access terminal (e.g., in response to detecting a handoff condition associated with the access terminal), where the source access network controller may be in communication with a data network. The source access network controller may also instruct a target access network controller to create a target radio session corresponding with the source radio session, and to establish a communication route between the data network and the access network via the target ANC. The source access network controller may then freeze a state associated with the source radio session and transmits the frozen state to the target access network controller. The target access network controller may subsequently unfreeze the received state and further unlock the radio session, hence resuming control of the access terminal.

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