1.
    发明专利
    未知

    公开(公告)号:AT497655T

    公开(公告)日:2011-02-15

    申请号:AT06846144

    申请日:2006-10-24

    Applicant: QUALCOMM INC

    Abstract: A system and method for Interference Cancellation (IC). One aspect relates to iterative interference cancellation with iterative finger delay adaptation. The interference cancellation method comprises receiving multi-paths of a signal; and performing iterative interference cancellation to remove multi-path interference, wherein the performing iterative IC comprises estimating a Signal-to-Interference-plus-Noise Ratio (SINR) at each of a plurality of pre-determined rake receiver finger delays, and performing successive Channel Estimation (CE) and IC on rake receiver fingers according to their estimated SINRs, and wherein the CE of a next finger does not start until interference of a previous finger is removed from a sample buffer. The method may further comprise improving estimated rake receiver finger delay, and each iteration decreases the amount of interference observed by each finger.

    Sistemas y procedimientos para la formación de haces distribuidos basados en la portadora y la interferencia causada

    公开(公告)号:ES2710485T3

    公开(公告)日:2019-04-25

    申请号:ES09711375

    申请日:2009-02-09

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (800) para la formación de haces distribuidos basándose en la portadora y en la interferencia causada, el procedimiento que se implementa por una estación base de una pluralidad de estaciones base, cada estación base que sirve a un solo usuario, el procedimiento que comprende: recibir (802) información de estado de canal desde los usuarios; determinar (804) un vector de formación de haz de transmisión basándose en la maximización de una función de utilidad M(wi) que comprende una relación de la señal a interferencia causada más ruido, en el que cada estación base determina por separado el vector de formación del haz de transmisión para su usuario; y utilizar (806) el vector de formación de haz de transmisión para formación de haz; y en el que la interferencia causada a cada usuario se escala por uno o más factores de ponderación α, en el que la escala se produce como:**Fórmula** en el que wi indica el vector de formación de haz de transmisión, hii, hij indican coeficientes de canal, Pi indica la restricción de potencia para la estación base i.

    BASE STATIONS AND METHODS FOR FACILITATING DYNAMIC SIMULCASTING AND DE SIMULCASTING IN A DISTRIBUTED ANTENNA SYSTEM

    公开(公告)号:IN2254CHN2014A

    公开(公告)日:2015-06-12

    申请号:IN2254CHN2014

    申请日:2014-03-25

    Applicant: QUALCOMM INC

    Abstract: Base stations may include a plurality of antenna ports adapted to communicatively couple to respective remote antenna units. A base station simulcast controller module may be coupled with each antenna port and may be adapted to transmit downlink transmissions over a plurality of remote antenna units with two or more of the remote antenna units simulcasting downlink transmissions as a simulcasting group. In response to one or more obtained network traffic parameters the base station simulcast controller module may modify the simulcasting group to include at least one different remote antenna unit. Methods operational on base station may include transmitting downlink transmissions over a plurality of remote antenna units where two or more of the remote antenna units form a simulcasting group. The simulcasting group can be modified to include at least one different remote antenna unit in response to one or more obtained network traffic parameters.

    APPARATUS AND METHODS FOR FACILITATING SIMULCASTING AND DE SIMULCASTING IN A DISTRIBUTED ANTENNA SYSTEM

    公开(公告)号:IN2251CHN2014A

    公开(公告)日:2015-06-12

    申请号:IN2251CHN2014

    申请日:2014-03-25

    Applicant: QUALCOMM INC

    Abstract: An RF connection matrix may include first and second carrier specific RF connection matrix modules. The first carrier specific RF connection matrix module can be adapted to route a first downlink transmission to one or more remote antenna units for transmission on a first carrier. The second carrier specific RF connection matrix module can be adapted to route a second downlink transmission to one or more remote antenna units for transmission on a second carrier. Methods for facilitating simulcasting and de simulcasting may include receiving a signal associated with a sector ID which signal includes a first downlink transmission for a first carrier and a second downlink transmission for a second carrier. The first downlink transmission can be routed to one or more remote antenna units for transmission on the first carrier. The second downlink transmission can be routed to one or more remote antenna units for transmission on the second carrier.

    DISTRIBUTED ANTENNA SYSTEMS AND METHODS OF WIRELESS COMMUNICATIONS FOR FACILITATING SIMULCASTING AND DE-SIMULCASTING OF DOWNLINK TRANSMISSIONS
    7.
    发明申请
    DISTRIBUTED ANTENNA SYSTEMS AND METHODS OF WIRELESS COMMUNICATIONS FOR FACILITATING SIMULCASTING AND DE-SIMULCASTING OF DOWNLINK TRANSMISSIONS 审中-公开
    分布式天线系统和无线通信方法,用于促进下行链路传输的SIMULCATTING和DE-SIMULCATTING

    公开(公告)号:WO2013056106A3

    公开(公告)日:2013-06-13

    申请号:PCT/US2012060040

    申请日:2012-10-12

    Applicant: QUALCOMM INC

    CPC classification number: H04H20/22 H04B7/024 H04B7/12 H04W4/06 H04W88/085

    Abstract: Distributed antenna systems (DASs) can include a plurality of spatially separated remote antenna units. According to at least one example, a first group of remote antenna units can simulcast downlink transmissions on a first carrier with a particular sector identity (ID). A second group of remote antenna units, including at least one different remote antenna unit from the first group, can simulcast downlink transmissions on a second carrier with the same sector ID. According to at least one other example, two or more remote antenna units which include respective coverage areas that are non-adjacent to one another can be employed to simulcast downlink transmissions.

    Abstract translation: 分布式天线系统(DAS)可以包括多个空间上分离的远程天线单元。 根据至少一个示例,第一组远程天线单元可以在具有特定扇区标识(ID)的第一载波上联播下行链路传输。 包括来自第一组的至少一个不同远程天线单元的第二组远程天线单元可以在具有相同扇区ID的第二载波上联播下行链路传输。 根据至少另一个示例,可以采用包括彼此不相邻的相应覆盖区域的两个或更多个远程天线单元来联播下行链路传输。

    DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN
    8.
    发明申请
    DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN 审中-公开
    双SIM卡双主动订阅器识别模块与单发送链和双或单接收链

    公开(公告)号:WO2015009511A2

    公开(公告)日:2015-01-22

    申请号:PCT/US2014046024

    申请日:2014-07-09

    Applicant: QUALCOMM INC

    Abstract: A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single RF transmit chain may be scheduled for uplink transmissions associated with the first call and uplink transmissions associated with the second call. A timesharing schedule for the transmit chain may determine timing for the uplink transmissions associated with the first call is transmitted and when the uplink transmissions associated with the second call is transmitted on the transmit chain. Downlink transmissions associated with the first and second calls may be received using different receive chain. Downlink transmissions associated with the first and second calls may be received using the same receive chain.

    Abstract translation: 提供了一种方法,装置和计算机程序产品。 该装置可以被配置为建立第一呼叫以进行第一订阅,并且在维持第一呼叫的同时接受用于第二订阅的第二呼叫。 可以为与第一呼叫相关联的上行链路传输和与第二呼叫相关联的上行链路传输调度单个RF发射链。 用于发送链的分时计划可以确定与第一呼叫相关联的上行链路传输的定时被发送,以及何时在发送链上发送与第二呼叫相关联的上行链路传输。 可以使用不同的接收链接收与第一和第二呼叫相关联的下行链路传输。 可以使用相同的接收链接收与第一和第二呼叫相关联的下行链路传输。

    DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN
    9.
    发明申请
    DUAL SIM DUAL ACTIVE SUBSCRIBER IDENTIFICATION MODULE WITH A SINGLE TRANSMIT CHAIN AND DUAL OR SINGLE RECEIVE CHAIN 审中-公开
    双SIM卡双主动订阅器识别模块与单发送链和双或单接收链

    公开(公告)号:WO2015009510A2

    公开(公告)日:2015-01-22

    申请号:PCT/US2014046016

    申请日:2014-07-09

    Applicant: QUALCOMM INC

    CPC classification number: H04W76/026 H04W8/18 H04W72/1215 H04W76/025 H04W88/06

    Abstract: A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single transmit chain may be used to transmit uplink traffic associated with the first call and uplink traffic associated with the second call. A timesharing schedule for the transmit chain may determine when the uplink traffic associated with the first call is transmitted and when the uplink traffic associated with the second call is transmitted on the transmit chain. Downlink traffic associated with the first and second calls may be received using different receive chain. Downlink traffic associated with the first and second calls may be received using the same receive chain.

    Abstract translation: 提供了一种方法,装置和计算机程序产品。 该装置可以被配置为建立第一呼叫以进行第一订阅,并且在维持第一呼叫的同时接受用于第二订阅的第二呼叫。 单个发射链可用于传送与第一呼叫相关联的上行链路业务和与第二呼叫相关联的上行链路业务。 用于发送链的分时计划可以确定何时发送与第一呼叫相关联的上行链路业务以及何时在发送链上发送与第二呼叫相关联的上行链路业务。 可以使用不同的接收链接收与第一和第二呼叫相关联的下行链路业务。 可以使用相同的接收链接收与第一和第二呼叫相关联的下行链路业务。

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