公开(公告)号：US20170257807A1

公开(公告)日：2017-09-07

申请号：US15057869

申请日：2016-03-01

Applicant: QUALCOMM Incorporated

Inventor： Leena ZACHARIAS ,  Aziz GHOLMIEH ,  Thiagarajan SIVANADYAN ,  Amit MAHAJAN

IPC: H04W36/14 ,  H04W72/12

CPC classification number: H04W36/14 ,  H04L5/001 ,  H04L5/0076 ,  H04L5/0098 ,  H04W36/0088 ,  H04W72/121 ,  H04W76/15 ,  H04W76/16 ,  H04W76/28 ,  H04W88/06

Abstract: Aspects of the present disclosure relate to performing a tune-away from a first radio access technology (RAT) to a second RAT. These techniques include, for example, a method in which one or more radio resources of a user equipment are tuned away from the first RAT (e.g., LTE technology) to the second RAT (e.g., legacy 2G/3G technology and/or Wi-Fi or Bluetooth technology). Based on detecting a need to tune away one or more radio resources, the UE may then determine a tune-away metric for each serving cell based on one or more performance impact factors associated with the serving cell being tuned away. The UE may select one or more of the cells to be tuned away based on the determined tune-away metrics. The UE may then tune one or more radio resources corresponding to the selected at least one cell away from the first RAT to the second RAT.

公开(公告)号：US20150063216A1

公开(公告)日：2015-03-05

申请号：US14015264

申请日：2013-08-30

Applicant: QUALCOMM Incorporated

Inventor： Francis M. NGAI ,  Shyamal RAMACHANDRAN ,  Amit MAHAJAN

IPC: H04W36/24 ,  H04W52/18 ,  H04W48/20

CPC classification number: H04W36/24 ,  H04L1/0021 ,  H04W48/16 ,  H04W48/20 ,  H04W52/18 ,  H04W88/06

Abstract: A system, a method and an apparatus are described. The apparatus comprise a modem that determines frequencies at which a transceiver of a wireless device is susceptible to interference generated by a different transceiver of the wireless device, and that modifies a search for a radio access network based on the one or more frequencies. The first transceiver may be susceptible to the interference by means of transmission of the interference through one or more circuits within the wireless device. A threshold power level may be modified based on an estimate of the power of the interference. The threshold power level may be used to determine presence of a pilot signal. The interference may be modeled based on a list of frequencies associated with one or more subscriptions of the wireless device. An order of searching for pilot signals may be modified.

Abstract translation: 描述了系统，方法和装置。 该装置包括调制解调器，其确定无线设备的收发器容易受到由无线设备的不同收发器产生的干扰的频率，并且基于一个或多个频率来修改对无线电接入网络的搜索。 通过无线设备内的一个或多个电路的干扰传输，第一收发器可能容易受到干扰。 可以基于干扰功率的估计来修改阈值功率电平。 阈值功率电平可用于确定导频信号的存在。 干扰可以基于与无线设备的一个或多个订阅相关联的频率列表来建模。 可以修改搜索导频信号的顺序。