公开(公告)号：EP2659584B1

公开(公告)日：2014-10-01

申请号：EP11815885

申请日：2011-12-28

Applicant: QUALCOMM INC

Inventor： LI GUANSHENG ,  LIU LI ,  TANG YIWU

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1225 ,  H03B5/1256 ,  H03B5/1262 ,  H03B5/1281 ,  H03B5/1296

公开(公告)号：WO2014204706A3

公开(公告)日：2015-03-19

申请号：PCT/US2014041641

申请日：2014-06-10

Applicant: QUALCOMM INC

Inventor： LIU LI ,  NARATHONG CHIEWCHARN

IPC: H04B1/00 ,  H04B1/40 ,  H04W16/14 ,  H04W72/02 ,  H04W88/06

CPC classification number: H04W88/06 ,  H04B1/0053 ,  H04B1/403 ,  H04W16/14 ,  H04W72/1215

Abstract: A wireless device supporting concurrent communication with multiple wireless systems of different radio access technologies (RATs) are disclosed. In an exemplary design, an apparatus includes first and second receivers supporting concurrent signal reception from wireless systems of different RATs. The first receiver receives a first downlink signal from a first wireless system of a first RAT. The second receiver receives a second downlink signal from a second wireless system of a second RAT, which is different from the first RAT. The first and second receivers may operate concurrently. The second receiver may be broadband and/or may support carrier aggregation. The apparatus may further include first and second local oscillator (LO) generators to generate LO signals for the first and second receivers, respectively, based on different divider ratios in order to mitigate voltage controlled oscillator (VCO) pulling.

Abstract translation: 公开了一种支持与不同无线电接入技术（RAT）的多个无线系统的并发通信的无线设备。 在示例性设计中，装置包括支持来自不同RAT的无线系统的并发信号接收的第一和第二接收机。 第一接收机从第一RAT的第一无线系统接收第一下行链路信号。 第二接收机从与第一RAT不同的第二RAT的第二无线系统接收第二下行链路信号。 第一和第二接收器可以同时运行。 第二接收机可以是宽带和/或可以支持载波聚合。 该装置还可以包括第一和第二本地振荡器（LO）发生器，以分别基于不同的分频器比率产生用于第一和第二接收机的LO信号，以便减轻压控振荡器（VCO）的拉动。

公开(公告)号：WO2012048036A3

公开(公告)日：2012-08-02

申请号：PCT/US2011054974

申请日：2011-10-05

Applicant: QUALCOMM INC ,  LIU LI ,  NARATHONG CHIEWCHARN ,  GUDEM PRASAD SRINIVASA SIVA

Inventor： LIU LI ,  NARATHONG CHIEWCHARN ,  GUDEM PRASAD SRINIVASA SIVA

IPC: H03D3/24 ,  H03L7/093 ,  H04B1/00 ,  H04B1/40 ,  H04W88/06

CPC classification number: H03L7/1976 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03L7/093 ,  H03L7/099 ,  H03L7/104 ,  H04B1/0057

Abstract: A transceiver for multi-standard operation (usable, for example, to communicate signals both of a first wireless communication standard and of a second wireless communication standard) has a mixer that receives a local oscillator signal generated by a local oscillator. A PLL of the local oscillator involves a VCO, a digitally programmable analog loop filter, a digitally programmable VCO supply voltage circuit, and a digitally programmable VCO varactor bias control circuit. In one aspect, the bandwidth of the analog loop filter is adjusted depending on the communication standard of the signal being communicated. In other aspects, the VCO supply voltage circuit and/or the varactor bias control circuit are configured in different ways to optimize PLL performance depending on the communication standard of the signal being communicated.

Abstract translation: 用于多标准操作的收发器（例如可用于传送第一无线通信标准和第二无线通信标准的信号）具有接收由本地振荡器产生的本地振荡器信号的混合器。 本地振荡器的PLL包括VCO，数字可编程模拟环路滤波器，数字可编程VCO电源电压电路和数字可编程VCO变容二极管偏置控制电路。 在一个方面，模拟环路滤波器的带宽根据正在传送的信号的通信标准来调节。 在其他方面，VCO电源电压电路和/或变容二极管偏置控制电路以不同的方式配置，以根据正在通信的信号的通信标准优化PLL性能。

公开(公告)号：WO2011153076A3

公开(公告)日：2012-03-08

申请号：PCT/US2011038241

申请日：2011-05-26

Applicant: QUALCOMM INC ,  GUDEM PRASAD S ,  LAU SOON-SENG ,  LIU LI

Inventor： GUDEM PRASAD S ,  LAU SOON-SENG ,  LIU LI

IPC: H04B1/10 ,  H04B1/16 ,  H04B1/52 ,  H04W52/02

CPC classification number: H04B1/525 ,  H04B1/109 ,  H04W52/0238 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/164 ,  Y02D70/40

Abstract: Although the duplexer in a full-duplex transceiver circuit may only be guaranteed by the duplexer manufacturer to have a transmit band rejection from its TX port to its RX port of a certain amount, and may only be guaranteed to have a receive band rejection of another amount, the actual transmit band rejection and the actual receive band rejection of a particular instance of the duplexer may be better than specified. Rather than consuming excess power in the receiver and/or transmitter in order to meet performance requirements assuming the duplexer only performs as well as specified, the duplexer's in-circuit performance is measured as part of a transmitter-to-receiver isolation determination. Transmitter and/or receiver power settings are reduced where possible to take advantage of the measured better-than-specified in-circuit duplexer performance, while still meeting transceiver performance requirements. Power settings are not changed during normal transmit and receive mode operation.

Abstract translation: 虽然全双工收发器电路中的双工器可能只能由双工器制造商保证从其TX端口到其一定数量的RX端口的发射波段抑制，并且只能保证具有另一个的接收频带抑制 数量，双工器的特定实例的实际发射频带抑制和实际接收频带抑制可能优于指定的。 假设双工器仅执行指定，而不是在接收机和/或发射机中消耗多余的功率，以满足性能要求，则双工器的在线性能是作为发射机到接收机隔离确定的一部分进行测量的。 发射机和/或接收机功率设置在可能的情况下可以减少，以便在仍然满足收发器性能要求的同时利用测得的优于指定的在线双工器性能。 在正常的发送和接收模式操作期间，电源设置不会改变。