公开(公告)号：US20140254564A1

公开(公告)日：2014-09-11

申请号：US13784829

申请日：2013-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： Nilesh Khude ,  Junyi Li ,  Vincent Douglas Park ,  Saurabha Rangrao Tavildar

IPC: H04W72/04

CPC classification number: H04W72/0426 ,  H04B7/2656 ,  H04W16/10 ,  H04W84/045

Abstract: Methods and apparatus for controlling interference with regard to important control signals, e.g., synchronization signals and broadcast channel signals, are described. A configurable base station monitors for and receives signals from other base stations in its local vicinity and determines the implemented frame timings corresponding to the other deployed base stations. If possible, the configurable base station selects to use a frame timing offset which is different from the frame timing offsets being used by the other base stations. In some embodiments, symbol level and subframe level synchronization are maintained between the base stations; however, frame level synchronization may, and sometimes does vary. Different adjacent base stations may, and sometimes do, intentionally offset their frame boundaries by multiples of a subframe.

Abstract translation: 描述了用于控制关于重要控制信号（例如，同步信号和广播信道信号）的干扰的方法和装置。 可配置的基站监视其本地附近的其他基站的信号并从其接收信号，并确定与其他部署的基站相对应的实施的帧定时。 如果可能，可配置基站选择使用不同于其他基站使用的帧定时偏移的帧定时偏移。 在一些实施例中，在基站之间维持符号级和子帧级同步; 然而，帧级同步可能有时会有变化。 不同的相邻基站可以并且有时会有意地将其帧边界偏移到子帧的倍数。

公开(公告)号：US20140269464A1

公开(公告)日：2014-09-18

申请号：US13802742

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Vincent Douglas Park ,  Nilesh Khude ,  Junyi Li ,  Saurabha Rangrao Tavildar

IPC: H04W48/16 ,  H04W52/02

CPC classification number: H04W48/16 ,  H04W48/08 ,  H04W52/0209 ,  H04W52/0274 ,  H04W84/045 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: A communications system includes a plurality of different types of small coverage area base stations, e.g., femto cell base stations, WiFi access points and Bluetooth access points within a macro cell. Different user equipment (UE) devices, e.g., different smartphones, include different capabilities. In order for UE devices and small coverage area base stations with compatible capabilities to efficiently discover one another, the various small coverage area base stations and various UE devices utilize the macro cell communications band and macro cell communication protocol to coordinate device discovery and exchange discovery information and control information which allows a UE device to access a compatible small coverage area base station and subsequently communicate user data, e.g., traffic data, with the UE device.

Abstract translation: 通信系统包括多个不同类型的小覆盖区域基站，例如，宏小区内的毫微微小区基站，WiFi接入点和蓝牙接入点。 不同的用户设备（UE）设备，例如不同的智能电话，包括不同的能力。 为了使UE设备和具有兼容能力的小型覆盖区域基站有效发现，各种小型覆盖区域基站和各种UE设备利用宏小区通信频带和宏小区通信协议来协调设备发现和交换发现信息 以及控制信息，其允许UE设备访问兼容的小覆盖区域基站，并且随后将用户数据（例如业务数据）与UE设备进行通信。

公开(公告)号：US20140024378A1

公开(公告)日：2014-01-23

申请号：US13797689

申请日：2013-03-12

Applicant: QUALCOMM INCORPORATED

Inventor： Nilesh Khude ,  Saurabha Rangrao Tavildar ,  Michaela Vanderveen ,  Junyi Li ,  Vincent Douglas Park

IPC: H04W68/02

CPC classification number: H04W48/16 ,  H04W8/06 ,  H04W60/00 ,  H04W68/00 ,  H04W68/02 ,  H04W76/14 ,  H04W84/045

Abstract: Methods and apparatus are described for refining, e.g., reducing, a paging area corresponding to a user equipment device, e.g., a cellular inactive UE device. Various embodiments are well suited for communications systems in which user equipment devices participate in peer to peer communications networks in which direct user device to user device communications are employed. A user equipment device participating in a peer to peer network transmits discovery signals. A femto base station and/or a cellular active UE device in the local vicinity of the UE device transmitting the peer to peer discovery signal eavesdrops on the peer discovery signaling and detects the presence of the cellular inactive UE device. The detection of the cellular inactive UE device is reported to a MME. The MME determines a paging area corresponding to the detected UE device based on the reported information and the location of the reporting device.

Abstract translation: 描述了用于精简（例如，减少）对应于用户设备设备（例如，蜂窝无线UE设备）的寻呼区域的方法和设备。 各种实施例非常适用于其中用户设备设备参与其中使用直接用户设备到用户设备通信的对等通信网络的通信系统。 参与对等网络的用户设备发送发现信号。 发送对等点发现信号的UE设备的本地附近的毫微微基站和/或蜂窝主动UE设备窃取对等体发现信令并检测蜂窝无效UE设备的存在。 蜂窝无线UE设备的检测被报告给MME。 基于所报告的信息和报告设备的位置，MME确定与检测到的UE设备相对应的寻呼区域。

公开(公告)号：US20140194130A1

公开(公告)日：2014-07-10

申请号：US13738936

申请日：2013-01-10

Applicant: QUALCOMM INCORPORATED

Inventor： Nilesh Khude ,  Saurabha Rangrao Tavildar ,  Junyi Li ,  Vincent Douglas Park

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04W56/0045

Abstract: A femto base station (BS) maintains two different timings: a femto BS downlink timing and a femto BS uplink timing. A femto base station's uplink reference timing is based on the macro uplink timing being used by one or more UE devices in the local vicinity of the femto BS. In some embodiments, the femto BS synchronizes its femto uplink timing to the macro uplink timing being used by the closest UE device transmitting uplink signals to the macro BS. In other embodiments, the femto BS determines its femto base station uplink timing based on one or more uplink signals from UE devices in its vicinity transmitting to the macro BS. In various embodiments, femto cell uplink signals and macro cell uplink signals are received at a femto cell BS in synchronization. This approach facilitates frequency division multiplexing (FDM) in the uplink between a macro cell and a femto cell.

Abstract translation: 毫微微基站（BS）维护两个不同的定时：毫微微BS下行链路定时和毫微微BS上行链路定时。 毫微微基站的上行链路参考定时是基于在毫微微BS的本地附近的一个或多个UE设备使用的宏上行链路定时。 在一些实施例中，毫微微BS将其毫微微上行链路定时与最近的UE设备使用的宏上行链路定时进行同步，从而向宏BS发送上行链路信号。 在其他实施例中，毫微微BS基于从其附近的UE设备发送到宏BS的一个或多个上行链路信号来确定其毫微微基站上行链路定时。 在各种实施例中，在毫微微小区BS同步地接收毫微微小区上行链路信号和宏小区上行链路信号。 这种方法有助于在宏小区和毫微微小区之间的上行链路中的频分复用（FDM）。

公开(公告)号：US09042903B2

公开(公告)日：2015-05-26

申请号：US13738936

申请日：2013-01-10

Applicant: QUALCOMM Incorporated

Inventor： Nilesh Khude ,  Saurabha Rangrao Tavildar ,  Junyi Li ,  Vincent Douglas Park

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04W56/0045

Abstract: A femto base station (BS) maintains two different timings: a femto BS downlink timing and a femto BS uplink timing. A femto base station's uplink reference timing is based on the macro uplink timing being used by one or more UE devices in the local vicinity of the femto BS. In some embodiments, the femto BS synchronizes its femto uplink timing to the macro uplink timing being used by the closest UE device transmitting uplink signals to the macro BS. In other embodiments, the femto BS determines its femto base station uplink timing based on one or more uplink signals from UE devices in its vicinity transmitting to the macro BS. In various embodiments, femto cell uplink signals and macro cell uplink signals are received at a femto cell BS in synchronization. This approach facilitates frequency division multiplexing (FDM) in the uplink between a macro cell and a femto cell.

Abstract translation: 毫微微基站（BS）维护两个不同的定时：毫微微BS下行链路定时和毫微微BS上行链路定时。 毫微微基站的上行链路参考定时是基于在毫微微BS的本地附近的一个或多个UE设备使用的宏上行链路定时。 在一些实施例中，毫微微BS将其毫微微上行链路定时与最近的UE设备使用的宏上行链路定时进行同步，从而向宏BS发送上行链路信号。 在其他实施例中，毫微微BS基于从其附近的UE设备发送到宏BS的一个或多个上行链路信号来确定其毫微微基站上行链路定时。 在各种实施例中，在毫微微小区BS同步地接收毫微微小区上行链路信号和宏小区上行链路信号。 这种方法有助于在宏小区和毫微微小区之间的上行链路中的频分复用（FDM）。

公开(公告)号：US20140256328A1

公开(公告)日：2014-09-11

申请号：US13787544

申请日：2013-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： Junyi Li ,  Nilesh Khude ,  Saurabha Rangrao Tavildar ,  Vincent Douglas Park

IPC: H04W36/00

CPC classification number: H04W36/0055 ,  H04B17/309 ,  H04B17/318 ,  H04L5/0051 ,  H04L5/0057 ,  H04W16/00 ,  H04W36/30 ,  H04W84/045

Abstract: Methods and apparatus that facilitate handover related measurements and decision making in a communications system including user equipment (UE) devices, a macro base station and femto base stations (femtocells) are described. In some embodiments a UE device transmits pilots along with identification information using UE device selected transmission resources from a set of recurring UE pilot transmission resources dedicated by a macro base station for UE pilot signal and related device information transmission purposes. Femto base stations measure the UE transmitted pilot signals and report the signal strength measurement results and corresponding device identifiers to a handoff decision control entity, e.g., an eNodeB or control node, which makes handover decisions. By relying on UE transmitted pilots measured by multiple base stations, e.g., femto base stations, the need for femto cells to transmit pilots can be reduced while well informed UE handoff decisions still being possible.

Abstract translation: 描述了在包括用户设备（UE）设备，宏基站和毫微微基站（毫微微小区）的通信系统中促进切换相关测量和决策的方法和装置。 在一些实施例中，UE设备使用UE设备选择的传输资源从用于UE导频信号的宏基站专用的一组循环UE导频传输资源和相关设备信息传输目的来发送导频。 毫微微基站测量UE发送的导频信号，并将信号强度测量结果和相应的设备标识符报告给切换决策控制实体，例如进行切换决定的eNodeB或控制节点。 通过依赖由多个基站（例如，毫微微基站）测量的UE发射的导频，可以减少对毫微微小区发送导频的需要，同时可以很好地告知UE切换决定仍然是可能的。