公开(公告)号：US20150264090A1

公开(公告)日：2015-09-17

申请号：US14626218

申请日：2015-02-19

Applicant: Apple Inc.

Inventor： Youngjae Kim ,  Joonsuk Kim

IPC: H04L29/06 ,  H04W4/16 ,  H04W24/08 ,  H04W72/04

CPC classification number: H04L43/0876 ,  H04L65/1069 ,  H04W4/16 ,  H04W24/08 ,  H04W74/085 ,  H04W84/12

Abstract: This disclosure relates to wireless communication techniques for high short packet density scenarios. According to some embodiments, a wireless device may determine whether a wireless medium is experiencing crowded short packet conditions during a first period of time. The wireless device may select an operational mode from at least a first operational mode and a second operational mode based at least in part on whether the wireless medium is experiencing crowded short packet conditions. The wireless device may perform wireless communication on the wireless medium according to the selected operational mode.

Abstract translation: 本公开涉及用于高短数据包密度情况的无线通信技术。 根据一些实施例，无线设备可以确定无线介质是否在第一时间段期间经历拥挤的短分组条件。 至少部分地基于无线介质是否正在经历拥挤的短分组条件，无线设备可以从至少第一操作模式和第二操作模式选择操作模式。 无线设备可以根据所选择的操作模式在无线介质上执行无线通信。

公开(公告)号：US20150257133A1

公开(公告)日：2015-09-10

申请号：US14630691

申请日：2015-02-25

Applicant: Apple Inc.

Inventor： Joonsuk Kim ,  Syed Aon Mujtaba

IPC: H04W72/04 ,  H04L27/22 ,  H04L29/06 ,  H04B7/04

CPC classification number: H04L69/22 ,  H04L1/0041 ,  H04L1/0075 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0224 ,  H04L27/22 ,  Y02D70/122 ,  Y02D70/124 ,  Y02D70/126

Abstract: A backward compatible L-LTF design that can provide control information in addition to channel estimation information in conjunction with Wi-Fi communication techniques. A wireless transmission may be received by a wireless device. The wireless transmission may include a physical layer (PHY) preamble and PHY data. The PHY preamble may include a field that has a training sequence configured for channel estimation and control information. The control information may be determined by the wireless device, and the wireless device may configure reception parameters for the wireless transmission based on the control information.

Abstract translation: 一种向后兼容的L-LTF设计，除了与Wi-Fi通信技术相结合的信道估计信息之外，还可提供控制信息。 无线设备可以接收无线传输。 无线传输可以包括物理层（PHY）前导码和PHY数据。 PHY前导码可以包括具有被配置用于信道估计和控制信息的训练序列的场。 控制信息可以由无线设备确定，并且无线设备可以基于控制信息来配置用于无线传输的接收参数。

公开(公告)号：US20150257106A1

公开(公告)日：2015-09-10

申请号：US14626947

申请日：2015-02-20

Applicant: Apple Inc.

Inventor： Syed Aon Mujtaba ,  Joonsuk Kim

IPC: H04W52/02 ,  H04W28/02

CPC classification number: H04W52/0238 ,  H04W28/0221 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/26

Abstract: This disclosure relates to low energy communication techniques. According to some embodiments, a wireless transmission may be received by a wireless device. The wireless transmission may include a physical layer (PHY) preamble and PHY data. The PHY preamble may include destination information indicating a destination and length information indicating a length (or duration) of the wireless transmission. The destination and length information may be included prior to a portion of the PHY preamble configured for channel estimation. The wireless device may determine whether the wireless transmission is destined to the wireless device based on the destination information. If the wireless transmission is not destined to the wireless device, the wireless device may drop a remainder of the wireless transmission.

Abstract translation: 本公开涉及低能量通信技术。 根据一些实施例，无线设备可以接收无线传输。 无线传输可以包括物理层（PHY）前导码和PHY数据。 PHY前导码可以包括指示目的地的目的地信息和指示无线传输的长度（或持续时间）的长度信息。 目的地和长度信息可以被包括在配置用于信道估计的PHY前同步码之前。 无线设备可以基于目的地信息来确定无线传输是否去往无线设备。 如果无线传输不指向无线设备，则无线设备可以丢弃无线传输的剩余部分。