公开(公告)号：US20180324658A1

公开(公告)日：2018-11-08

申请号：US16037732

申请日：2018-07-17

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04B17/382 ,  H04B17/336

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

公开(公告)号：US20180176848A1

公开(公告)日：2018-06-21

申请号：US15827143

申请日：2017-11-30

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  David Boettger

IPC: H04W36/30 ,  H04W36/36 ,  H04W72/08 ,  H04W72/04 ,  H04W72/10

CPC classification number: H04W36/30 ,  H04W36/08 ,  H04W36/36 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/08 ,  H04W72/10 ,  H04W76/15

Abstract: This disclosure relates to techniques for supporting wireless communication using an anchor carrier and data carriers. A wireless device may attach to a cellular network via an anchor carrier. The wireless device may receive data transfer scheduling information from the cellular network via the anchor carrier. The data transfer scheduling information may indicate a data carrier on which data transfer is scheduled. The wireless device may receive data for the data transfer via the data carrier.

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：US20160360558A1

公开(公告)日：2016-12-08

申请号：US15143739

申请日：2016-05-02

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  David Boettger ,  Vijay Kumar Ramamurthi ,  Venkateswara Rao Manepalli ,  Srinivas Pasupuleti ,  Swaminathan Balakrishnan ,  Samy Khay-Ibbat ,  Tarik Tabet

IPC: H04W76/02 ,  H04W72/04 ,  H04W52/02 ,  H04W76/04

CPC classification number: H04W76/02 ,  H04W28/02 ,  H04W28/20 ,  H04W52/0209 ,  H04W72/1252 ,  H04W76/10 ,  H04W76/18 ,  H04W76/28 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/26

Abstract: This disclosure relates to techniques for UEs (including link budget limited UEs) to improve communications performance with a cellular network. A UE may be configured to provide a request (for a first process executed by the UE) for a high-bandwidth connection to a base station of a cellular network during a first RRC connection. In some embodiments, the RRC connection is established by another process. In some embodiments, the UE is configured to receive signaling from the base station indicating that the base station cannot satisfy the high-bandwidth connection request and the UE is configured not to send or receive data for the high-bandwidth connection during the first RRC connection in response to the signaling. In some embodiments, the UE is configured to re-send the request on a second, subsequent RRC connection that is not established by the first process. In some embodiments, the UE is configured to opportunistically re-send the request on subsequent RRC connections established by one or more other processes until the base station is able to grant the request.

Abstract translation: 本公开涉及用于UE（包括链路预算有限的UE）以改善与蜂窝网络的通信性能的技术。 UE可以被配置为在第一RRC连接期间提供针对蜂窝网络的基站的高带宽连接的请求（对于由UE执行的第一进程）。 在一些实施例中，RRC连接由另一进程建立。 在一些实施例中，UE被配置为从基站接收指示基站不能满足高带宽连接请求的信令，并且UE被配置为在第一RRC连接期间不发送或接收高带宽连接的数据 响应信令。 在一些实施例中，UE被配置为在第一进程未建立的第二后续RRC连接上重新发送请求。 在一些实施例中，UE被配置为在由一个或多个其他进程建立的后续RRC连接上机会地重新发送请求，直到基站能够授予该请求。

公开(公告)号：US20160345217A1

公开(公告)日：2016-11-24

申请号：US15153676

申请日：2016-05-12

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  Samy Khay-Ibbat ,  Sarma V. Vangala ,  Rafael L. Rivera-Barreto ,  David Boettger ,  Awais M. Hussain ,  Syed Aon Mujtaba

IPC: H04W36/00 ,  H04W36/30

CPC classification number: H04W36/0083 ,  H04B17/336 ,  H04B17/382

Abstract: This disclosure relates to techniques for a link budget limited UE to improve communications performance with a cellular network. The UE may perform signal to interference noise ratio (SINR) measurements and use these measurements to adjust a received signal power value that is provided to the cellular network as a received signal power measurement. The UE may generate the received signal power value based at least in part on the SINR measurement in order to reduce the likelihood of handover when the UE has good SINR but poor received signal power. The UE may also provide preferred configuration information to the base station which enhances the performance of the UE when link budget limited. The configuration information may specify one or more parameter values designed to provide improved performance for a link budget limited device.

Abstract translation: 本公开涉及用于链路预算有限UE以改善与蜂窝网络的通信性能的技术。 UE可以执行信噪比（SINR）测量，并且使用这些测量来调整提供给蜂窝网络的接收信号功率值作为接收信号功率测量。 UE可以至少部分地基于SINR测量生成接收信号功率值，以便当UE具有良好的SINR但接收信号功率较差时，减少切换的可能性。 UE还可以向基站提供优选配置信息，其在链路预算受限时增强了UE的性能。 配置信息可以指定被设计成为链路预算限制设备提供改进的性能的一个或多个参数值。