公开(公告)号：US20180083793A1

公开(公告)日：2018-03-22

申请号：US15710708

申请日：2017-09-20

Applicant: Apple Inc.

Inventor： Joonsuk KIM ,  Young Jae KIM

IPC: H04L12/18 ,  H04L12/761

CPC classification number: H04L12/1877 ,  H04L12/185 ,  H04L12/1863 ,  H04L12/189 ,  H04L45/16 ,  H04W72/005

Abstract: Methods and apparatus for transmission of data streams using a multicast packet format based on group identifiers (Group IDs) to deliver data to multiple recipient stations (STAs). Using Group IDs, an access point (AP) assigns multiple STAs to one or more groups, and uniquely assigns each STA to a particular position within the group, such that it can receive a requested data stream. A Group ID management action frame provided by the AP to an individual STA indicates to which group (or groups) the STA is assigned and the STA's position within the group, with which information the STA can determine whether a packet is intended for the STA and which portion of the packet to decode in order to receive requested data streams.

公开(公告)号：US20140220916A1

公开(公告)日：2014-08-07

申请号：US14249263

申请日：2014-04-09

Applicant: Apple Inc.

Inventor： Syed A. MUJTABA ,  Xiaowen WANG ,  Young Jae KIM ,  Vinay R. MAJJIGI ,  Johnson O. SEBENI ,  Tahir SHAMIM ,  Karthik ANANTHARAMAN ,  Kee-Bong SONG ,  Romain TRILLING

IPC: H04B7/08 ,  H04L12/26

CPC classification number: H04B7/082 ,  H04B7/0817 ,  H04B7/0871 ,  H04L43/0823

Abstract: A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes.

Abstract translation: 移动无线设备基于下行链路信号质量，页面指示符和寻呼消息来适应不连续接收期间的接收分集。 当下行链路信号质量超过预定阈值时，移动无线设备通过初始天线解码页面指示符信道，否则，通过初始天线对寻呼信道进行解码，而不对页面指示符信道进行解码。 当页面指示符被解码为擦除时，移动无线设备切换到通过替代天线解码寻呼信道。 当通过单个天线接收的寻呼消息用错误的错误校验码进行解码时，移动无线设备能够通过多个天线进行接收分集以用于后续解码。 基于跟踪多个连续的错误检查代码故障和成功，移动无线设备在单天线接收和多天线接收之间切换。