公开(公告)号：US20200374695A1

公开(公告)日：2020-11-26

申请号：US16989151

申请日：2020-08-10

Applicant: Apple Inc.

Inventor： Qian Li ,  Geng Wu ,  Lili Wei ,  Apostolos Papathanassiou

IPC: H04W12/00 ,  H04W4/70 ,  H04W76/10 ,  H04W4/80 ,  H04W88/04 ,  H04W88/06 ,  H04W12/04 ,  H04W76/14 ,  H04W92/18

Abstract: This document discusses, among other things, a wireless personal-area network (PAN) underlying a cellular wide-area network (WAN). The PAN includes a wearable user equipment (UE-W) and a user equipment aggregation node (UE-AN). The UE-W includes processing circuitry to process data for communication with a network of the WAN through the UE-AN, and radio interface circuitry to communicate with the UE-AN through a first air interface. The UE-AN includes processing to process data for communication between the network of the WAN and the UE-W, and radio interface circuitry to communicate with the network of the WAN through the first air interface and with the UE-W through a second air interface. The UE-W and the UE-AN can share a network credential, appearing as a single device to the WAN.

公开(公告)号：US10791515B2

公开(公告)日：2020-09-29

申请号：US16067669

申请日：2016-06-27

Applicant: Apple Inc.

Inventor： Qian Li ,  Guangjie Li ,  Xiaoyun May Wu ,  Geng Wu

IPC: H04W52/02 ,  H04L5/00 ,  H04W8/00 ,  H04W4/80 ,  H04W72/12 ,  H04W76/27

Abstract: This disclosure describes frame structures and layer one (L1) procedures suitable for Xu air interfaces. Features of the design are designed for energy-efficient operation and to meet other performance specifications and characteristics of ultra-dense user equipment deployments.

公开(公告)号：US20170074971A1

公开(公告)日：2017-03-16

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 ,  H04W24/10 ,  H04W4/02

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.

Abstract translation: 通过对于用于到达时差（TDOA）的信号引入非单位频率重用，可以通过包括可以在低灵敏度和低信噪比下检测的附加参考信号来提高邻近小区的可听性， 测量，例如从服务小区站点和各个相邻小区站点发送的信号的正交性。 提出了称为TDOA-RS的新参考信号，以提高部署3GPP EUTRAN（LTE）系统的蜂窝网络中的相邻小区的可听性，并且可以在用于PDSCH的任何资源块（RB）中发送TDOA-RS 和/或MBSFN子帧，而不管后者是否在支持PMCH和PDSCH两者的载波上。 除了附加的TDOA-RS参考信号之外，还可以包括附加同步信号（TDOA-sync）以提高相邻小区的可听性。

公开(公告)号：US20150045057A1

公开(公告)日：2015-02-12

申请号：US14509379

申请日：2014-10-08

Applicant: Apple Inc.

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

IPC: G01S5/10 ,  H04W4/02

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.

Abstract translation: 通过对于用于到达时差（TDOA）的信号引入非单位频率重用，可以通过包括可以在低灵敏度和低信噪比下检测的附加参考信号来提高邻近小区的可听性， 测量，例如从服务小区站点和各个相邻小区站点发送的信号的正交性。 提出了称为TDOA-RS的新参考信号，以提高部署3GPP EUTRAN（LTE）系统的蜂窝网络中的相邻小区的可听性，并且可以在用于PDSCH的任何资源块（RB）中发送TDOA-RS 和/或MBSFN子帧，而不管后者是否在支持PMCH和PDSCH两者的载波上。 除了附加的TDOA-RS参考信号之外，还可以包括附加同步信号（TDOA-sync）以提高相邻小区的可听性。