SYSTEMS AND METHODS FOR IMPROVED RANGE AND PERFORMANCE FOR LOW POWER RADIOS

    公开(公告)号:US20240107426A1

    公开(公告)日:2024-03-28

    申请号:US18238454

    申请日:2023-08-25

    Applicant: Apple Inc.

    CPC classification number: H04W48/10 H04L5/0017 H04L27/2695

    Abstract: Systems and methods for low power wireless device detection are provided. In one or more implementations, a transmitting/advertising device may include a device identifier and/or one or more time-offset bits in a wireless communication frame for a scanning/receiving device. The scanning/receiving device may perform sequence-level correlation operations to detect the presence of the transmitting/advertising device. The sequence-level correlation operations may detect the transmitting/advertising device based on a detection of a correlation signal peak corresponding to the device identifier, and/or based relative timing of the correlation signal peak corresponding to the device identifier and a correlation signal peak corresponding to another item in the wireless communication frame.

    RESOURCE AGGREGATION FOR DYNAMIC ANTENNA PORT ADAPTATION

    公开(公告)号:US20230318669A1

    公开(公告)日:2023-10-05

    申请号:US17710245

    申请日:2022-03-31

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform an operation to obtain one or more channel state information (CSI) resources (e.g., new resources) from a set of resources indicated by a CSI report configuration. For example, the UE may aggregate or separate respective resources of the set of resources to obtain one or more CSI resources. The operation may be performed based on a first number of antenna ports associated with each resource of the set of resources and a second number of antenna ports associated with a codebook configuration. Thus, performing the operation may result in the UE forming one or more CSI resources for measuring CSI on the one or more CSI resources. The UE may transmit a CSI report based on measuring the CSI for a set of reference signals received on the one or more CSI resources.

    Method for transmitting control information and apparatus for same

    公开(公告)号:US09621323B2

    公开(公告)日:2017-04-11

    申请号:US14232140

    申请日:2012-07-16

    Abstract: A method for transmitting uplink control information and an apparatus thereto are disclosed, wherein the method includes: generating a plurality of HRAQ-ACKs; selecting one first resource index and two second resource indices, each corresponding to the plurality of HARQ-ACKs; transmitting through a first antenna port a first modulation symbol and a first reference signal for demodulating the first modulation symbol; and transmitting through a second antenna port a second modulation symbol and a second reference signal for demodulating the second modulation symbol. Both a transmission resource for the first modulation symbol and a transmission resource for the first reference signal are given using one first resource index. A transmission resource for the second modulation symbol is given using one of two second resource indices, and a transmission resource for the second reference signal is given using the other of two second resource indices.

    METHOD AND APPARATUS FOR POSITION ESTIMATION IN WIRELESS COMMUNICATION
    7.
    发明申请
    METHOD AND APPARATUS FOR POSITION ESTIMATION IN WIRELESS COMMUNICATION 有权
    无线通信中位置估计的方法与装置

    公开(公告)号:US20160029161A1

    公开(公告)日:2016-01-28

    申请号:US14808977

    申请日:2015-07-24

    Abstract: A method for receiving a reference signal for positioning in a wireless communication system by a user equipment (UE) is disclosed. The method includes receiving a plurality of reference signal sequences for positioning to which different frequency shift values are applied, calculating a correlation between the plurality of reference signal sequences for positioning and transmitted reference signal sequences for positioning corresponding to the plurality of reference signal sequences in a time domain, and determining a time domain index having a highest value from the correlation as a reference time point for positioning, wherein the frequency shift value is determined according to the sum of multiplication of an index of each reference signal sequence and a frequency shift interval, and frequency offset.

    Abstract translation: 公开了一种用于由用户设备(UE)接收用于在无线通信系统中定位的参考信号的方法。 该方法包括:接收用于定位的多个参考信号序列,其中施加不同的频移值,计算用于定位的多个参考信号序列与所发射的参考信号序列之间的相关性,所述参考信号序列与对应于多个参考信号序列的定位相对应, 确定具有来自所述相关性的最高值的时域索引作为用于定位的参考时间点,其中,所述频移值根据每个参考信号序列的索引与频移间隔的相乘之和来确定 ,和频率偏移。

    METHOD AND APPARATUS FOR DATA AND CONTROL MULTIPLEXING
    8.
    发明申请
    METHOD AND APPARATUS FOR DATA AND CONTROL MULTIPLEXING 有权
    数据和控制多路复用的方法和装置

    公开(公告)号:US20150288500A1

    公开(公告)日:2015-10-08

    申请号:US14743197

    申请日:2015-06-18

    Abstract: System(s) and method(s) are provided for transmitting data code symbols and control code symbols spanning disparate transmission time intervals in the uplink. Data and control symbols that overlap in time-domain within a transmission time interval are multiplexed and transmitted employing resources scheduled for data transmission, whereas data and control code symbols that are not multiplexed are transmitted in respective allocated resources. Multiplexing in conjunction with localized and distributed resource scheduling preserves the single-carrier characteristics of a single-carrier frequency division multiple access system.

    Abstract translation: 提供了一种或多种系统和方法,用于发送跨越上行链路中不同传输时间间隔的数据码符号和控制码符号。 在传输时间间隔内与时域重叠的数据和控制符号通过调度用于数据传输的资源进行复用和发送,而在多个分配的数据和控制码符号在各自分配的资源中被发送。 与本地化和分布式资源调度相结合的复用保留了单载波频分多址系统的单载波特性。

    METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME
    9.
    发明申请
    METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME 有权
    用于发送控制信息的方法和装置

    公开(公告)号:US20140169315A1

    公开(公告)日:2014-06-19

    申请号:US14232140

    申请日:2012-07-16

    Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information, and to an apparatus for the method, wherein the method comprises the steps of: generating a plurality of HRAQ-ACKs; selecting, from among a plurality of resource indices, one first resource index, and two second resource indices, each corresponding to the plurality of HARQ-ACKs; transmitting, through a first antenna port, a first modulation symbol corresponding to the plurality of HARQ-ACKs and a first reference signal for demodulating the first modulation symbol; and transmitting, through a second antenna port, a second modulation symbol corresponding to the plurality of HARQ-ACKs and a second reference signal for demodulating the second modulation symbol. Both a transmission resource for the first modulation symbol and a transmission resource for the first reference signal are given using said one first resource index. A transmission resource for the second modulation symbol is given using one of said two second resource indices, and a transmission resource for the second reference signal is given using the other of said two second resource indices.

    Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统。 更具体地说,本发明涉及一种用于发送上行链路控制信息的方法,以及涉及该方法的装置,其中该方法包括以下步骤:产生多个HRAQ-ACK; 从多个资源索引中选择与所述多个HARQ-ACK对应的一个第一资源索引和两个第二资源索引; 通过第一天线端口发送对应于所述多个HARQ-ACK的第一调制符号和用于解调所述第一调制符号的第一参考信号; 以及通过第二天线端口发送对应于所述多个HARQ-ACK的第二调制符号和用于解调所述第二调制符号的第二参考信号。 使用所述一个第一资源索引给出用于第一调制符号的传输资源和用于第一参考信号的传输资源。 使用所述两个第二资源索引中的一个给出用于第二调制符号的传输资源,并且使用所述两个第二资源索引中的另一个给出用于第二参考信号的传输资源。

    WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS AND BASE STATION APPARATUS
    10.
    发明申请
    WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS AND BASE STATION APPARATUS 有权
    无线通信系统,移动站设备和基站设备

    公开(公告)号:US20140036850A1

    公开(公告)日:2014-02-06

    申请号:US14111484

    申请日:2012-04-04

    Abstract: Regarding an uplink demodulation reference signal to which a cyclic shift and an orthogonal cover code is applied, IFDM is applied to the uplink demodulation reference signal while retaining the number of bits of control information that specifies a cyclic shift and an orthogonal cover code transmitted from a base station apparatus to a mobile station apparatus. A subcarrier offset and a subcarrier interval based on IFDM are uniquely determined in accordance with the cyclic shift and the orthogonal cover code of the uplink demodulation reference signal, reported from the base station apparatus to the mobile station apparatus.

    Abstract translation: 关于应用循环移位和正交覆盖码的上行链路解调参考信号,将IFDM应用于上行解调参考信号,同时保留指定循环移位的控制信息的比特数和从 基站装置。 根据从基站装置向移动站装置报告的上行链路解调参考信号的循环移位和正交覆盖码,唯一地确定基于IFDM的子载波偏移和子载波间隔。

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