公开(公告)号：EP3143716A1

公开(公告)日：2017-03-22

申请号：EP15721071.7

申请日：2015-04-15

Applicant: Qualcomm Incorporated

Inventor： TANG, Yiwu ,  RANGARAJAN, Rajagopalan ,  NARATHONG, Chiewcharn ,  LEUNG, Lai Kan ,  TASIC, Aleksandar Miodrag ,  PAN, Dongling

IPC: H04L5/00 ,  H04L27/26 ,  H04B1/38 ,  H04W48/00

CPC classification number: H04W72/0453 ,  H04B1/16 ,  H04B1/30 ,  H04B1/38 ,  H04L5/001 ,  H04L5/003 ,  H04L27/2647

Abstract: Certain aspects of the present disclosure provide methods and apparatus for dynamically adjusting a voltage-controlled oscillator (VCO) frequency, a local oscillator (LO) divider ratio, and/or a receive path when adding or discontinuing reception of a component carrier (CC) in a carrier aggregation (CA) scheme. This dynamic adjustment is utilized to avoid (or at least reduce) VCO, LO, and transmit signal coupling issues with multiple component carriers, with minimal (or at least reduced) current consumption by the VCO and the LO divider.

Abstract translation: 本公开的某些方面提供的方法和装置用于动态地调整压控振荡器（VCO）的频率，本地振荡器（LO）的分压比，和/或接收路径增加或中止的分量载波的接收（CC）当 方案在载波聚合（CA）。 此动态调整被用来避免（或至少减少）VCO，LO，并与多个分量载波上进行发送信号耦合问题，以最小的（或至少减少）的消耗电流由VCO和分频器LO。

公开(公告)号：EP3143699A1

公开(公告)日：2017-03-22

申请号：EP15720823.2

申请日：2015-04-03

Applicant: Qualcomm Incorporated

Inventor： LEUNG, Lai Kan ,  NARATHONG, Chiewcharn ,  RANGARAJAN, Rajagopalan ,  PAN, Dongling ,  TANG, Yiwu ,  TASIC, Aleksandar Miodrag

IPC: H04B1/00

CPC classification number: H04B7/0897 ,  H04B1/0082 ,  H04B1/16 ,  H04L27/152

Abstract: Certain aspects of the present disclosure provide multi-way diversity receivers with multiple synthesizers. Such a multi-way diversity receiver may be implemented in a carrier aggregation (CA) transceiver. One example wireless reception diversity circuit generally includes three or more receive paths for processing received signals and two or more frequency synthesizing circuits configured to generate local oscillating signals to downconvert the received signals. Each of the frequency synthesizing circuits is shared by at most two of the receive paths, and each pair of the frequency synthesizing circuits may generate a pair of local oscillating signals having the same frequency.

Abstract translation: 本公开的某些方面提供具有多个合成器的多路分集接收机。 这样的多路分集接收机可以在载波聚合（CA）收发器中实现。 一个示例的无线接收分集电路通常包括用于处理接收信号的三个或更多个接收路径，以及被配置为产生本地振荡信号以下变频接收信号的两个或更多个频率合成电路。 每个频率合成电路由至多两个接收路径共享，并且每对频率合成电路可以产生具有相同频率的一对本地振荡信号。