公开(公告)号：US20190033424A1

公开(公告)日：2019-01-31

申请号：US16136862

申请日：2018-09-20

Applicant: Apple Inc.

Inventor： Lai King Tee ,  Geng Wu ,  Jun Li ,  Yuqiang Tang ,  Neng Wang ,  Hua Xu ,  Jianglei Ma

IPC: G01S5/10 ,  H04W64/00 ,  H04W24/10 ,  H04W4/02 ,  H04L5/00

CPC classification number: G01S5/10 ,  H04L5/0007 ,  H04W24/10 ,  H04W64/00

Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.

公开(公告)号：US10091738B2

公开(公告)日：2018-10-02

申请号：US13962395

申请日：2013-08-08

Applicant: Apple Inc.

Inventor： Yuqiang Tang ,  Mark A. Harris

IPC: H04W52/18 ,  H04W52/32

Abstract: An entity, such as a base station, in a wireless communications network performs power control of a control channel based on one or more characteristics of a message in the control channel. For example, the control channel can be a paging channel. The one or more characteristics include, as examples, the size and/or the type of message in the control channel.

公开(公告)号：US10082558B2

公开(公告)日：2018-09-25

申请号：US15681903

申请日：2017-08-21

Applicant: Apple Inc.

Inventor： Lai King Tee ,  Geng Wu ,  Jun Li ,  Yuqiang Tang ,  Neng Wang ,  Hua Xu ,  Jianglei Ma

IPC: G01S5/10 ,  H04W4/02 ,  H04W24/10 ,  H04W64/00 ,  H04L5/00

CPC classification number: G01S5/10 ,  H04L5/0007 ,  H04W4/02 ,  H04W24/10 ,  H04W64/00

Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.

公开(公告)号：US09913276B2

公开(公告)日：2018-03-06

申请号：US15294979

申请日：2016-10-17

Applicant: Apple Inc.

Inventor： Lai King Tee ,  Yi Song ,  Jun Li ,  Yuqiang Tang ,  Neng Wang

IPC: H04W72/04 ,  H04L5/00 ,  H04W48/16

CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04W48/16 ,  H04W72/0406 ,  H04W72/042

Abstract: A mobile station receives a downlink control structure in a first carrier, where the downlink control structure indicates that control information for the mobile station is on a second, different carrier. The mobile station decodes the control information in the second carrier, where the control information specifies resource allocation of a wireless link for the mobile station. More specifically, according to some implementations, the control channel in the first carrier specifies the resource allocation for an extended control channel in the second carrier, where the extended control channel specifies the resource allocation for traffic data of a wireless link for the mobile station.

公开(公告)号：US09739869B2

公开(公告)日：2017-08-22

申请号：US15241601

申请日：2016-08-19

Applicant: Apple Inc.

Inventor： Lai King Tee ,  Geng Wu ,  Jun Li ,  Yuqiang Tang ,  Neng Wang ,  Hua Xu ,  Jianglei Ma

IPC: G01S5/10 ,  H04W64/00 ,  H04W4/02 ,  H04W24/10 ,  H04L5/00

CPC classification number: G01S5/10 ,  H04L5/0007 ,  H04W4/02 ,  H04W24/10 ,  H04W64/00

Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.

公开(公告)号：US20160165493A1

公开(公告)日：2016-06-09

申请号：US15043777

申请日：2016-02-15

Applicant: Apple Inc.

Inventor： Anit Lohtia ,  Yuqiang Tang ,  Miroslav Budic

IPC: H04W36/00 ,  H04W36/14 ,  H04W4/06

CPC classification number: H04W36/0061 ,  H04W4/06 ,  H04W8/26 ,  H04W24/00 ,  H04W36/0011 ,  H04W36/14 ,  H04W48/08 ,  H04W48/12 ,  H04W84/12 ,  H04W88/02

Abstract: In a wireless communications network, the presence of a wireless local area network in a cell segment is determined. An identifier of the wireless local area network in the cell segment is sent to at least one mobile station in the cell segment to enable the at least one mobile station to hand off to the wireless local area network. Optionally, information identifying geographic boundaries of cell segments and the wireless local area network can be sent to the at least one mobile station.

公开(公告)号：US09288722B2

公开(公告)日：2016-03-15

申请号：US14542814

申请日：2014-11-17

Applicant: Apple Inc.

Inventor： Anit Lohtia ,  Yuqiang Tang ,  Miroslav Budic

IPC: H04H20/71 ,  H04W36/00 ,  H04W36/14 ,  H04W48/12 ,  H04W4/06 ,  H04W8/26 ,  H04W24/00 ,  H04W84/12

CPC classification number: H04W36/0061 ,  H04W4/06 ,  H04W8/26 ,  H04W24/00 ,  H04W36/0011 ,  H04W36/14 ,  H04W48/08 ,  H04W48/12 ,  H04W84/12 ,  H04W88/02

Abstract: In a wireless communications network, the presence of a wireless local area network in a cell segment is determined. An identifier of the wireless local area network in the cell segment is sent to at least one mobile station in the cell segment to enable the at least one mobile station to hand off to the wireless local area network. Optionally, information identifying geographic boundaries of cell segments and the wireless local area network can be sent to the at least one mobile station.

公开(公告)号：US20130343311A1

公开(公告)日：2013-12-26

申请号：US13974589

申请日：2013-08-23

Applicant: Apple Inc.

Inventor： Lai-King Tee ,  Yi Song ,  Jun Li ,  Yuqiang Tang ,  Neng Wang

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04W48/16 ,  H04W72/0406 ,  H04W72/042

Abstract: A mobile station receives a downlink control structure in a first carrier, where the downlink control structure indicates that control information for the mobile station is on a second, different carrier. The mobile station decodes the control information in the second carrier, where the control information specifies resource allocation of a wireless link for the mobile station. More specifically, according to some implementations, the control channel in the first carrier specifies the resource allocation for an extended control channel in the second carrier, where the extended control channel specifies the resource allocation for traffic data of a wireless link for the mobile station.

Abstract translation: 移动站在第一载波中接收下行链路控制结构，其中下行链路控制结构指示用于移动台的控制信息在第二不同的载波上。 移动台解码第二载波中的控制信息，其中控制信息指定用于移动台的无线链路的资源分配。 更具体地，根据一些实施方式，第一载波中的控制信道指定第二载波中的扩展控制信道的资源分配，其中扩展控制信道指定用于移动台的无线链路的业务数据的资源分配。

公开(公告)号：US20130329668A1

公开(公告)日：2013-12-12

申请号：US13962458

申请日：2013-08-08

Applicant: Apple Inc.

Inventor： Yuqiang Tang ,  Mark A. Harris

IPC: H04W52/32

CPC classification number: H04W52/18 ,  H04W52/322 ,  H04W52/325

Abstract: An entity, such as a base station, in a wireless communications network performs power control of a control channel based on one or more characteristics of a message in the control channel. For example, the control channel can be a paging channel. The one or more characteristics include, as examples, the size and/or the type of message in the control channel.

公开(公告)号：US10736048B2

公开(公告)日：2020-08-04

申请号：US16144001

申请日：2018-09-27

Applicant: Apple Inc.

Inventor： Yuqiang Tang ,  Mark A. Harris

IPC: H04W52/18 ,  H04W52/32

Abstract: An entity, such as a base station, in a wireless communications network performs power control of a control channel based on one or more characteristics of a message in the control channel. For example, the control channel can be a paging channel. The one or more characteristics include, as examples, the size and/or the type of message in the control channel.