公开(公告)号：US10567142B2

公开(公告)日：2020-02-18

申请号：US15903222

申请日：2018-02-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Xiangying Yang ,  Haijing Hu ,  Dawei Zhang

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04W52/02

Abstract: Techniques are disclosed relating to acknowledgements and preemption indicators in the context of multiplexing different services on wireless physical layer frames. In some embodiments, transport blocks for a transmission are divided into code blocks and code block groups. Information indicating the division may be communicated between a base station and mobile device. In some embodiments, a preemption indicator is transmitted which indicates a portion of the transport block preempted by another data service, and the preemption indicator is specified at a different granularity than a code block group. In some embodiments, acknowledgement information is transmitted that indicates, for each code block group included in the transport block, whether the code block group was successfully decoded by the user device. In various embodiments, the disclosed techniques may facilitate preemption by a low-latency, high-reliability data service.

公开(公告)号：US20190313458A1

公开(公告)日：2019-10-10

申请号：US16372316

申请日：2019-04-01

Applicant: Apple Inc.

Inventor： Wei Zeng ,  Wei Zhang ,  Tianyan Pu ,  Haitong Sun ,  Yuchul Kim ,  Dawei Zhang

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/00 ,  H04J13/00

Abstract: Apparatuses, systems, and methods for transmitting a preamble. The UE may transmit a preamble to a base station in a random access channel (RACH). The RACH may be located in unlicensed spectrum. The bandwidth of the preamble may cover a majority of a nominal channel bandwidth of the RACH. The UE may receive a random access response and establish a connection with the base station in response to receiving the random access response.

公开(公告)号：US20180278368A1

公开(公告)日：2018-09-27

申请号：US15903222

申请日：2018-02-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Xiangying Yang ,  Haijing Hu ,  Dawei Zhang

IPC: H04L1/00 ,  H04L1/18 ,  H04W52/02

Abstract: Techniques are disclosed relating to acknowledgements and preemption indicators in the context of multiplexing different services on wireless physical layer frames. In some embodiments, transport blocks for a transmission are divided into code blocks and code block groups. Information indicating the division may be communicated between a base station and mobile device. In some embodiments, a preemption indicator is transmitted which indicates a portion of the transport block preempted by another data service, and the preemption indicator is specified at a different granularity than a code block group. In some embodiments, acknowledgement information is transmitted that indicates, for each code block group included in the transport block, whether the code block group was successfully decoded by the user device. In various embodiments, the disclosed techniques may facilitate preemption by a low-latency, high-reliability data service.

公开(公告)号：US09935859B2

公开(公告)日：2018-04-03

申请号：US14870328

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Swaminathan Balakrishnan ,  Yuchul Kim ,  Navid Damji ,  Sreevalsan Vallath ,  Samy Khay-Ibbat ,  Syed Aon Mujtaba

IPC: H04W24/00 ,  H04L12/26 ,  H04W24/06 ,  H04W24/08 ,  H04B17/309

CPC classification number: H04L43/0888 ,  H04B17/309 ,  H04L43/10 ,  H04W24/06 ,  H04W24/08

Abstract: Loading estimation of 3GPP networks. One or more metrics relating to a cell of a 3GPP network may be measured. Loading of the cell may be estimated based on the one or more metrics. The metrics may include metrics measured, estimated, or derived at multiple layers, possibly including one or more of physical layer, radio link control layer, radio resource control layer, or application layer metrics.

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：US20160007226A1

公开(公告)日：2016-01-07

申请号：US14747129

申请日：2015-06-23

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Joonsuk Kim

IPC: H04W28/02 ,  H04W48/10 ,  H04W24/08 ,  H04W48/18 ,  H04L12/26

CPC classification number: H04W28/0236 ,  H04L43/0888 ,  H04L43/0894 ,  H04W24/08 ,  H04W28/0231 ,  H04W48/18

Abstract: This disclosure relates to determining load and estimating throughput of wireless networks by a wireless device. According to some embodiments, the numbers of active downlink and uplink nodes in a wireless network may be determined. Channel utilization of the wireless network may also be determined. An uplink data rate and a downlink data rate of the wireless device in the wireless network may be estimated. Based on the numbers of active downlink and uplink nodes, channel utilization, and the uplink data rate and a downlink data rate of the wireless device, the maximum possible uplink throughput and downlink throughput of the wireless device in the wireless network may be estimated. Such throughput estimates may be used to select a wireless network to join from among multiple available wireless networks.

Abstract translation: 本公开涉及确定无线设备的负载和估计无线网络的吞吐量。 根据一些实施例，可以确定无线网络中的活动下行链路和上行链路节点的数量。 也可以确定无线网络的信道利用率。 可以估计无线网络中的无线设备的上行链路数据速率和下行链路数据速率。 基于活动下行链路和上行链路节点的数量，信道利用率以及无线设备的上行链路数据速率和下行链路数据速率，可以估计无线网络中无线设备的最大可能的上行链路吞吐量和下行链路吞吐量。 可以使用这种吞吐量估计来选择从多个可用无线网络中加入的无线网络。

公开(公告)号：US20140314044A1

公开(公告)日：2014-10-23

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: H04W8/00 ,  H04B1/7143

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：US20130288624A1

公开(公告)日：2013-10-31

申请号：US13779661

申请日：2013-02-27

Applicant: APPLE INC.

Inventor： Syed Aon Mujtaba ,  Xiaowen Wang ,  Tarik Tabet ,  Kee-Bong Song ,  Youngjae Kim ,  Yuchul Kim

IPC: H04B7/08

CPC classification number: H04B7/0814 ,  H04B7/0817 ,  H04B7/0871 ,  H04W52/0209 ,  Y02D70/1262 ,  Y02D70/444

Abstract: Apparatus and methods for implementing “intelligent” receive diversity management in e.g., a mobile device. In one implementation, the mobile device includes an LTE-enabled UE, and the intelligent diversity management includes selectively disabling receive diversity (RxD) in that device upon meeting a plurality of criteria including (i) a capacity criterion, and (ii) a connectivity criterion. In one variant, the capacity criterion includes ensuring that an achievable data rate associated with a single Rx (receive) chain is comparable to that with RxD.

Abstract translation: 在例如移动设备中实现“智能”接收分集管理的装置和方法。 在一个实现中，移动设备包括启用LTE的UE，并且智能分集管理包括在满足多个标准时选择性地禁用该设备中的接收分集（RxD），包括（i）容量标准，和（ii）连接 标准。 在一个变型中，容量标准包括确保与单个Rx（接收）链相关联的可实现的数据速率与RxD的数据速率相当。

公开(公告)号：US12250646B2

公开(公告)日：2025-03-11

申请号：US17642207

申请日：2019-09-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Chunhai Yao ,  Dawei Zhang ,  Hong He ,  Rohit U Nabar ,  Wei Zeng ,  Yakun Sun ,  Yuchul Kim ,  Yushu Zhang

IPC: H04B7/00 ,  H04B7/0404 ,  H04B7/06 ,  H04B17/318 ,  H04W52/36 ,  H04W52/42

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for triggering a change in beam configuration based on UL beam conditions. The UE may detect an unsafe UL beam condition for an UL beam based, at least in part, on an MPE level being exceeded by the UL beam. In response to the detection, remedial actions that to alleviate the unsafe UL beam condition may be performed. The remedial actions may prioritize UL beam quality over DL beam quality and may include reducing a transmit power of the UL beam based on an MPR, triggering an intra-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, triggering an inter-panel antenna switch to a candidate UL beam that satisfies one or more conditions for intra-panel beam switching, and/or signaling a beam failure to a network serving the UE.