公开(公告)号：US09832686B2

公开(公告)日：2017-11-28

申请号：US14791687

申请日：2015-07-06

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  David Boettger ,  Krisztian Kiss ,  Dawei Zhang ,  Tarik Tabet ,  Rafael L. Rivera-Barreto ,  Huarui Liang

IPC: H04L12/28 ,  H04W36/00 ,  H04W76/04 ,  H04W48/16 ,  H04W36/14 ,  H04W48/18 ,  H04W88/06

CPC classification number: H04W36/0022 ,  H04W36/0083 ,  H04W36/14 ,  H04W48/16 ,  H04W48/18 ,  H04W76/27 ,  H04W88/06

Abstract: Mobile devices, base stations, and/or relay stations may implement CSFB (circuit switched fallback) operations by using RRC (radio resource control) connection release and/or handover procedures. If the CSFB RAT (radio access technology) target is not well configured, the UE may be informed and provisioned by the NW during a CSFB procedure with the information to return to LTE. Having this information, the UE may perform an autonomous search of LTE cells after the CSFB call release, speeding up return to LTE. To minimize potential call failures during CSFB, the UE may autonomously perform an additional cell search, in particular a search for cells on a RAT different from the initial target RAT. This creates an opportunity to prevent call failure of CSFB calls that would otherwise fail. The UE may be provisioned during the CSFB procedure with information to perform the additional cell search, should such a search be necessary.

公开(公告)号：US20170265057A1

公开(公告)日：2017-09-14

申请号：US15030159

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Haijing Hu ,  Huarui Liang

IPC: H04W8/04 ,  H04W48/04 ,  H04L29/12 ,  H04W12/06 ,  H04W60/04

CPC classification number: H04W60/005 ,  H04L61/1511 ,  H04L61/1588 ,  H04W8/04 ,  H04W12/06 ,  H04W48/04 ,  H04W60/00 ,  H04W60/04 ,  H04W88/005 ,  H04W88/16

Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to a next generation gateway via either a base station of a next generation radio access network (RAN) or a mobility management entity of a legacy RAN. An apparatus may be configured to receive an attachment request from a wireless device, determine authentication information via communication with a home subscriber server, determine, based at least in part on the authentication information, whether the wireless device is capable of communicating via the next generation RAT, and send, in response to determining the wireless device is capable, a connection request to a gateway of the next generation RAN. The authentication information may include subscription information associated with the wireless device.

公开(公告)号：US09713154B2

公开(公告)日：2017-07-18

申请号：US15385551

申请日：2016-12-20

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang ,  Huarui Liang

IPC: H04W72/04 ,  H04M11/06 ,  H04L5/00 ,  H04W8/00 ,  H04W72/12 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04L5/0098 ,  H04L27/0006 ,  H04M11/062 ,  H04W8/005 ,  H04W72/0406 ,  H04W72/12 ,  H04W84/12 ,  H04W88/06 ,  H04W88/10

Abstract: This disclosure relates to Wi-Fi signaling in conjunction with cellular communication in unlicensed frequency bands for efficient co-existence. According to one embodiment, a cell may be established between a cellular base station and a wireless user equipment device on a frequency channel in an unlicensed frequency band. A cellular communication may be scheduled between the base station and the user equipment device. A Wi-Fi signal may be transmitted on the frequency channel in conjunction with the scheduled cellular communication. The Wi-Fi signal may indicate a length of the scheduled cellular communication using Wi-Fi signaling. The scheduled cellular communication may be performed via the cell.

公开(公告)号：US09380445B2

公开(公告)日：2016-06-28

申请号：US14252258

申请日：2014-04-14

Applicant: APPLE INC.

Inventor： Yuchul Kim ,  Young Jae Kim ,  Joonsuk Kim ,  Xiaowen Wang ,  Vinay Majjigi ,  Syed Aon Mujtaba ,  Dawei Zhang

IPC: H04B1/7143 ,  H04W8/00

CPC classification number: H04W8/005 ,  H04B1/7143

Abstract: A device and method generates a hopping scheme for mobile stations of a wireless network. The method includes receiving a number of channels N of the wireless network. The method includes generating a shuffling matrix as a function of the number of channels N, each row of the shuffling matrix being indicative of a respective one of the mobile stations, each column of the shuffling matrix being indicative of a respective broadcast time of a discovery signal in a hopping scheme. The method includes generating the hopping scheme for the mobile stations in the channels as a function of the shuffling matrix. The hopping scheme maximizes an interval between two consecutive broadcast times that any two of the mobile stations are assigned to transmit discovery signals on adjacent channels.

Abstract translation: 一种设备和方法为无线网络的移动台生成跳频方案。 该方法包括接收无线网络的多个信道N. 该方法包括根据通道数N的函数产生混洗矩阵，混洗矩阵的每一行表示移动站中的相应一个，混洗矩阵的每一列表示发现的相应广播时间 信号在跳频方案。 该方法包括根据混洗矩阵来生成信道中的移动站的跳频方案。 跳频方案最大化两个连续广播时间之间的间隔，任何两个移动台被分配用于在相邻信道上发送发现信号。

公开(公告)号：US20160100304A1

公开(公告)日：2016-04-07

申请号：US14870763

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Xiaowen Wang ,  Tarik Tabet ,  Dawei Zhang ,  Syed Aon Mujtaba

IPC: H04W8/00 ,  H04W52/02 ,  H04W76/02

CPC classification number: H04W8/005 ,  H04W52/0241 ,  H04W76/14 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/26

Abstract: In some embodiments, a user equipment device (UE) implements a method for discovering the presence of neighboring UEs using an on-demand discovery signal transmission technique. This discovery process may be performed to enable the UEs to perform peer-to-peer communications with each other, wherein peer-to-peer communications is defined as direct communication between the UEs without involving a base station. The UE may be configured to transmit a discovery request signal when it has moved greater than a threshold amount since transmission of a prior discovery request signal. The discovery request signal causes one or more neighboring UEs to each transmit a discovery signal in response, and also causes the UE which generated the discovery request signal to transmit its own discovery signal. The received discovery signal from each of the neighboring UEs is useable to discover, or detect the presence of, these neighboring UEs.

Abstract translation: 在一些实施例中，用户设备设备（UE）使用按需发现信号传输技术来实现用于发现相邻UE的存在的方法。 可以执行该发现过程以使得UE能够彼此执行对等通信，其中将对等通信定义为在不涉及基站的情况下在UE之间的直接通信。 UE可以被配置为当发现先前的发现请求信号已经移动大于阈值量时，发送发现请求信号。 发现请求信号使得一个或多个相邻UE每个响应地发送发现信号，并且还使产生发现请求信号的UE发送其自己的发现信号。 来自每个相邻UE的接收到的发现信号可用于发现或检测这些相邻UE的存在。

公开(公告)号：US09264968B2

公开(公告)日：2016-02-16

申请号：US14095292

申请日：2013-12-03

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Dawei Zhang

IPC: H04W36/00 ,  H04W36/30 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W36/30 ,  H04L5/001 ,  H04L5/0053 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/14

Abstract: Device-to-device (D2D) communications in conjunction with carrier aggregation. A base station (BS) may coordinate D2D communication between two wireless user equipment (UE) devices. A primary cell may be configured for communicating with each of the UEs. A secondary cell may be configured for D2D communication between the two UEs. The primary cell and the secondary cell may utilize different component carriers. Additionally, cross-carrier scheduling may be used, such that at least some control information for the secondary cell is communicated via the primary cell.

Abstract translation: 与载波聚合相结合的设备到设备（D2D）通信。 基站（BS）可以协调两个无线用户设备（UE）设备之间的D2D通信。 主单元可以被配置为与每个UE进行通信。 二级小区可以被配置用于两个UE之间的D2D通信。 主电池和二次电池可以利用不同的分量载流子。 此外，可以使用跨载波调度，使得至少一些用于辅助小区的控制信息经由主小区传送。

公开(公告)号：US20150288475A1

公开(公告)日：2015-10-08

申请号：US14667745

申请日：2015-03-25

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang ,  Huarui Liang

IPC: H04J11/00 ,  H04L25/02 ,  H04W48/16 ,  H04W24/08

CPC classification number: H04J11/0079 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/0228 ,  H04W48/16

Abstract: This disclosure relates to performing cell measurements in unlicensed frequency bands and/or in channels with interference. According to some embodiments, a wireless user equipment (UE) device may define a reference symbol vector for a cell. Each respective element of the reference symbol vector may correspond to a respective subcarrier of the cell that carries a respective reference symbol. The UE may perform channel estimation at each respective element of the reference symbol vector. The UE may estimate the cell strength of the cell by cross-correlating channel estimates of different elements of the reference symbol vector.

Abstract translation: 本公开涉及在未经许可的频带和/或具有干扰的信道中执行小区测量。 根据一些实施例，无线用户设备（UE）设备可以定义小区的参考符号向量。 参考符号向量的每个相应元素可以对应于携带相应参考符号的小区的相应副载波。 UE可以在参考符号向量的每个相应元素处执行信道估计。 UE可以通过对参考符号向量的不同元素的信道估计进行相互相关来估计小区的小区强度。

公开(公告)号：US20150271824A1

公开(公告)日：2015-09-24

申请号：US14661543

申请日：2015-03-18

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Huarui Liang ,  Tarik Tabet ,  Farouk Belghoul

IPC: H04W72/04 ,  H04W52/18

CPC classification number: H04W72/0453 ,  H04W52/146 ,  H04W52/16 ,  H04W52/367 ,  Y02D70/00

Abstract: A method for dynamically selecting an A-MPR value to apply for an uplink transmission is provided. The method can include a wireless communication device receiving an indication from a network that A-MPR should be applied for uplink transmissions within a frequency band used for communication between the wireless communication device and the network. The method can further include the wireless communication device receiving an RB allocation for a subset of RB's within the frequency band from the network. The method can additionally include the wireless communication device determining an allocation ratio and a distribution characteristic of the allocated subset of RB's within the frequency band. The method can also include the wireless communication device selecting an A-MPR value to apply based at least in part on the allocation ratio and the distribution characteristic. The method can further include the wireless communication device applying the selected A-MPR.

Abstract translation: 提供了一种用于动态选择用于上行链路传输的A-MPR值的方法。 该方法可以包括无线通信设备，其从网络接收指示应用于用于无线通信设备和网络之间的通信的频带内的上行链路传输的A-MPR。 该方法还可以包括无线通信设备从网络接收在频带内的RB子集的RB分配。 该方法还可以包括无线通信设备确定分配比率和分配频带内RB分配子集的分布特性。 该方法还可以包括至少部分地基于分配比率和分布特性来选择要应用的A-MPR值的无线通信设备。 该方法还可以包括应用所选择的A-MPR的无线通信设备。

公开(公告)号：US20150256303A1

公开(公告)日：2015-09-10

申请号：US14636028

申请日：2015-03-02

Applicant: Apple Inc.

Inventor： Farouk Belghoul ,  Tarik Tabet ,  Dawei Zhang ,  Huarui Liang

IPC: H04L5/00 ,  H04J11/00

CPC classification number: H04L5/0032 ,  H04J11/0023 ,  H04L5/001 ,  H04L5/006 ,  H04L5/0091 ,  H04W16/14 ,  H04W76/16

Abstract: Methods and apparatus for using an unlicensed radio frequency band component carrier for uplink transmission are disclosed. A wireless communication device receives a carrier aggregation configuration, which can include at least one licensed radio frequency band component carrier and at least one unlicensed radio frequency band component carrier. The wireless communication device establishes a set of radio bearers and associates an unlicensed radio frequency band permission level with each of the radio bearers. The wireless communication device multiplexes uplink traffic for the radio bearers on the at least one licensed radio frequency band component carrier and the at least one unlicensed radio frequency band component carrier based at least in part on the unlicensed radio frequency band permission levels associated with the radio bearers.

Abstract translation: 公开了用于使用未许可的无线频带分量载波进行上行链路传输的方法和装置。 无线通信设备接收载波聚合配置，其可以包括至少一个许可的无线电频带分量载波和至少一个未许可的无线电频带分量载波。 无线通信设备建立一组无线电承载，并将未许可的无线电频带许可级别与每个无线电承载相关联。 无线通信设备至少部分地基于与无线电相关联的未许可的无线电频带许可级别，复用在至少一个许可的无线电频带分量载波和至少一个未许可的无线电频带分量载波上的无线电承载的上行链路业务 承载者

公开(公告)号：US20150223115A1

公开(公告)日：2015-08-06

申请号：US14502391

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Huarui Liang ,  Tarik Tabet ,  Farouk Belghoul ,  Dawei Zhang

IPC: H04W28/08 ,  H04W72/04

CPC classification number: H04L5/0073 ,  H04B1/715 ,  H04B2001/7154 ,  H04L5/001 ,  H04L5/0012 ,  H04L27/0006 ,  H04W16/14 ,  H04W28/085 ,  H04W72/0453 ,  H04W84/12

Abstract: Apparatus and methods for managing use of radio frequency channels in unlicensed radio frequency bands by a wireless communication device in communication with a cellular wireless network are disclosed. The wireless communication device obtains, from an eNodeB of the wireless network, one or more access network discovery and selection function (ANDSF) policies that include rules for mobility of the wireless communication device and offloading of traffic for the wireless communication device to radio frequency channels in an unlicensed radio frequency band. The wireless communication device determines when at least one radio frequency channel in the unlicensed radio frequency band is available for offloading traffic, for network selection, for network re-selection, or for a supplemental connection via carrier aggregation based on the ANDSF policies, measured interference levels, and/or loading information provided by the eNodeB.

Abstract translation: 公开了一种用于在与蜂窝无线网络通信的无线通信设备中管理未授权的无线电频带中的射频信道的使用的装置和方法。 无线通信设备从无线网络的eNodeB获得包括无线通信设备的移动性的规则的一个或多个接入网络发现和选择功能（ANDSF）策略，以及将无线通信设备的业务的无线业务卸载到射频信道 在无牌无线电频段。 无线通信设备确定在未许可的无线电频段中的至少一个射频信道是否可用于卸载业务，用于网络选择，用于网络重新选择，或者基于ANDSF策略的载波聚合来补充连接，测量的干扰 级别和/或加载由eNodeB提供的信息。