System and method for spatial multiplexing-based multiple antenna broadcast/multicast transmission

    公开(公告)号:US09462425B2

    公开(公告)日:2016-10-04

    申请号:US14589994

    申请日:2015-01-05

    Applicant: APPLE INC.

    Abstract: Methods and devices are provided for implementing two types of sub-channel arrangements. A first type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion of a transmission resource, transmitting broadcast traffic on at least one first antenna of a plurality of antennas in the first traffic portion using a first sub-channelization, transmitting multicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, in the first traffic portion using a second sub-channelization, and transmitting unicast traffic on at least one antenna of the plurality of antennas in the second traffic portion using a third sub-channelization. A second type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion, wherein for a portion of the transmission resource, a portion of the first traffic portion overlaps with a portion of the second traffic portion. In the portion of the transmission resource in which a portion of the first traffic portion overlaps with a portion of the second traffic portion, the channel arrangement involves transmitting broadcast/multicast traffic on at least one first antenna of a plurality of antennas using a first sub-channelization and b) transmitting unicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, using a second sub-channelization. The first, second and third sub-channelizations may be based on either one of or a combination of FDM sub-channelization and TDM sub-channelization.

    Transmission of Symbols in a MIMO Environment using Alamouti Based Codes
    24.
    发明申请
    Transmission of Symbols in a MIMO Environment using Alamouti Based Codes 审中-公开
    使用基于Alamouti的代码在MIMO环境中传输符号

    公开(公告)号:US20160248549A1

    公开(公告)日:2016-08-25

    申请号:US15059863

    申请日:2016-03-03

    Applicant: Apple Inc.

    Abstract: A method for transmitting data in a multiple-input-multiple-output space-time coded communication using a mapping table mapping a plurality of symbols defining the communication to respective antennae from amongst a plurality of transmission antennae and to at least one other transmission resource. The mapping table may comprise Alamouti-coded primary segments and may also comprise secondary segments, comprising primary segments. The primary segments in the secondary segments may be defined in accordance to an to Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.

    Abstract translation: 一种用于在多输入多输出空时编码通信中使用映射表将数据映射到多个发射天线中的定义通信的相应天线和至少一个其它传输资源的方法。 映射表可以包括Alamouti编码的主分段,并且还可以包括次分段,其包括主分段。 可以根据在段级别应用的基于Alamouti的码模式来定义次级段中的主要段以定义基于段级Alamouti的码。

    Efficient Location Updates, Paging and Short Bursts
    26.
    发明申请
    Efficient Location Updates, Paging and Short Bursts 有权
    高效的位置更新,寻呼和短脉冲

    公开(公告)号:US20130064154A1

    公开(公告)日:2013-03-14

    申请号:US13666426

    申请日:2012-11-01

    Applicant: Apple Inc.

    CPC classification number: H04W72/0413 H04W68/00 H04W74/0866

    Abstract: A mobile terminal in a wireless communication network may be one of several modes of operation. When in an idle mode, the mobile terminal may avoid a lengthy random access procedure normally associated with responding to a page from a base station, if the base station includes in the page an indication of a resource that the mobile terminal may utilize when responding to the page. Additionally, the mobile terminal may transmit an efficient location update MAC header to a base station, whether prompted to by a page from the base station or not. Furthermore, without leaving the idle mode or a sleep mode, the mobile terminal may exchange short data burst messages with a base station.

    Abstract translation: 无线通信网络中的移动终端可以是若干操作模式之一。 当处于空闲模式时,如果基站在页面中包括移动终端在响应时可以利用的资源的指示,则移动终端可以避免通常与响应于来自基站的页面相关联的冗长的随机接入过程 这一页。 另外,移动终端可以向基站发送有效的位置更新MAC报头,无论是否由来自基站的页面提示。 此外,在不离开空闲模式或睡眠模式的情况下,移动终端可以与基站交换短数据突发消息。

    Communication resource allocation systems and methods

    公开(公告)号:US10959227B2

    公开(公告)日:2021-03-23

    申请号:US15823120

    申请日:2017-11-27

    Applicant: APPLE INC.

    Abstract: A channel descriptor management message is transmitted on a broadcast connection to a mobile terminal. The channel descriptor management message provides a format for a frame. The frame includes a resource space. The channel descriptor management message defines a plurality of channels within the resource space and allocates at least one of the channels to a plurality of users. Subsequent resource allocation messages may refer to a location within a channel rather than a location within the entire resource space.

Patent Agency Ranking