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公开(公告)号：US09088385B2
公开(公告)日：2015-07-21
申请号：US14270025
申请日：2014-05-05
Applicant: APPLE INC.
Inventor： Dong-Sheng Yu , Hosein Nikopourdeilami , Sophie Vrzic , Mo-Han Fong , Robert Novak , Jun Yuan
CPC classification number: H04L1/0041 , H03M13/2903 , H04J13/16 , H04L1/0026 , H04L1/0042 , H04L1/0047 , H04L1/0057 , H04L1/0067 , H04L1/0072 , H04L1/0079 , H04L1/0656 , H04L5/0048 , H04L5/0055 , H04L5/0057 , H04W28/06
Abstract: Transmission of uplink control message for a wireless system. The uplink control message may be encoded according to one of multiple possible schemes. The choice of encoding scheme may be made based on the control message size and/or based on the available transmission resources and/or based on the detection scheme used on the receiving end. A modulation scheme may also be selected based on such factors. CDM may be used for certain control messages. Block code encoding, such as Reed-Muller encoding may be used for certain control messages. Different transmission resources may be allocated for different control message uses. The encoding specifics may be selected to obtain a certain hamming distance and/or size of the encoded message or based on other factors.
Abstract translation: 传输无线系统的上行链路控制消息。 上行链路控制消息可以根据多种可能方案之一进行编码。 可以基于控制消息大小和/或基于可用传输资源和/或基于在接收端使用的检测方案来进行编码方案的选择。 还可以基于这样的因素来选择调制方案。 CDM可以用于某些控制消息。 块代码编码，如Reed-Muller编码可用于某些控制消息。 可以为不同的控制消息使用分配不同的传输资源。 可以选择编码细节以获得编码消息的某个汉明距离和/或尺寸，或者基于其他因素。
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12.发明申请Method and System for Providing an Uplink Structure and Minimizing Pilot Signal Overhead in a Wireless Communication Network 有权在无线通信网络中提供上行链路结构和最小化导频信号开销的方法和系统公开(公告)号：US20140161068A1
公开(公告)日：2014-06-12
申请号：US14177716
申请日：2014-02-11
Applicant: Apple Inc.
Inventor： Sophie Vrzic , Jun Yuan , Mo-Han Fong , Robert Novak , Dong-Sheng Yu , Jianglei Ma
CPC classification number: H04W72/0446 , H04J11/00 , H04L5/005 , H04L5/0053 , H04L5/0055 , H04L27/2602 , H04W72/0413 , H04W72/042 , H04W74/004 , H04W74/0833 , H04W74/0866 , H04W84/12 , H04W88/085 , H04W88/12
Abstract: A method and system are provided having an uplink control structure and a pilot signal having minimal signal overhead for providing channel estimation and data demodulation in a wireless communication network. The uplink control structures enable mobile terminals to communicate with corresponding base stations to perform various functions including obtaining initial system access, submitting a bandwidth request, triggering a continuation of negotiated service, or providing a proposed allocation re-configuration header. A dedicated random access channel is provided to communicatively couple the base station and the mobile terminal so that the mobile terminal can select a random access signaling identification. A resource request is received at the base station to uplink resource information from the mobile terminal and an initial access information request is received from the mobile terminal to configure the base station connection. Pilot signals with varying density configurations are provided to include low density symbol patterns for multiple contiguous resource blocks and high density symbol patterns for single resource blocks.
Abstract translation: 提供一种方法和系统，其具有上行链路控制结构和具有最小信号开销的导频信号，用于在无线通信网络中提供信道估计和数据解调。 上行链路控制结构使得移动终端能够与相应的基站进行通信，以执行各种功能，包括获得初始系统访问，提交带宽请求，触发协商服务的继续或提供建议的分配重配置报头。 提供专用随机接入信道以通信地耦合基站和移动终端，使得移动终端可以选择随机接入信令标识。 在基站接收资源请求以从移动终端上行资源信息，并且从移动终端接收初始访问信息请求以配置基站连接。 提供具有不同密度配置的导频信号以包括用于多个连续资源块的低密度符号模式和用于单个资源块的高密度符号模式。
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公开(公告)号：US20140079152A1
公开(公告)日：2014-03-20
申请号：US14088531
申请日：2013-11-25
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Dong-Sheng Yu , Hang Zhang
IPC: H04L27/26
CPC classification number: H04L27/2611 , H04B7/06 , H04B7/08 , H04L5/0007 , H04L5/0023 , H04L25/0226 , H04L25/0232 , H04L27/2626 , H04L27/2647
Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
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公开(公告)号：US08619891B2
公开(公告)日：2013-12-31
申请号：US13666542
申请日：2012-11-01
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Dong-Sheng Yu , Hang Zhang
IPC: H04K1/10
CPC classification number: H04L27/2611 , H04B7/06 , H04B7/08 , H04L5/0007 , H04L5/0023 , H04L25/0226 , H04L25/0232 , H04L27/2626 , H04L27/2647
Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
Abstract translation: 一种用于改善OFDM通信系统内的信道估计的方法和装置。 OFDM中的信道估计通常借助于导频符号来执行。 导频符号通常在时间和频率上间隔开。 将导频符号插入的频率和时间的集合称为导频模式。 在一些情况下，导频图案是对角线形格子，规则的或不规则的。 该方法首先在较大相干性（时间或频率）的方向内插。 使用这些测量，导频符号在更快变化方向上的密度将增加，从而改善信道估计而不增加开销。 因此，第一内插步骤的结果然后可以用于辅助尺寸较小的相干性（时间或频率）的内插。
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公开(公告)号：US20130136205A1
公开(公告)日：2013-05-30
申请号：US13666542
申请日：2012-11-01
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Dong-Sheng Yu , Hang Zhang
IPC: H04L27/26
CPC classification number: H04L27/2611 , H04B7/06 , H04B7/08 , H04L5/0007 , H04L5/0023 , H04L25/0226 , H04L25/0232 , H04L27/2626 , H04L27/2647
Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
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Patent Agency Ranking
公开(公告)号：US20130128997A1
公开(公告)日：2013-05-23
申请号：US13665982
申请日：2012-11-01
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Dong-Sheng Yu , Hang Zhang
IPC: H04L5/00
CPC classification number: H04L27/2611 , H04B7/06 , H04B7/08 , H04L5/0007 , H04L5/0023 , H04L25/0226 , H04L25/0232 , H04L27/2626 , H04L27/2647
Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
Abstract translation: 一种用于改善OFDM通信系统内的信道估计的方法和装置。 OFDM中的信道估计通常借助于导频符号来执行。 导频符号通常在时间和频率上间隔开。 将导频符号插入的频率和时间的集合称为导频模式。 在一些情况下，导频图案是对角线形格子，规则的或不规则的。 该方法首先在较大相干性（时间或频率）的方向内插。 使用这些测量，导频符号在更快变化方向上的密度将增加，从而改善信道估计而不增加开销。 因此，第一内插步骤的结果然后可以用于辅助尺寸较小的相干性（时间或频率）的内插。
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公开(公告)号：US11317384B2
公开(公告)日：2022-04-26
申请号：US16289902
申请日：2019-03-01
Applicant: Apple Inc.
Inventor： Mo-Han Fong , Hang Zhang , Sophie Vrzic , Robert Novak , Jun Yuan , Dong-Sheng Yu
IPC: H04W72/04 , H04L5/00 , H04L1/18 , H04W24/10 , H04W72/08 , H04W48/12 , H04W88/06 , H04W48/10 , H04W48/14 , H04W88/08 , H04W72/00
Abstract: To effectively and efficiently provide control information, a broadcast pointer channel (BPCH) may be used to identify the type and perhaps relative location of control information that is being provided in a given frame structure, such as a sub-frame, frame, or superframe. A sub-frame (or like framing entity, such a frame or superframe) may have a BPCH and a corresponding system control information segment in which control information may reside. The system control information segment may have any number of control information blocks, wherein each control information block that is present may correspond to a particular type of control information. The BPCH is used to identify the type of control information that is present in a corresponding system control information segment, and if needed or desired, the relative locations of the various control information.
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公开(公告)号：US20210218506A1
公开(公告)日：2021-07-15
申请号：US17215623
申请日：2021-03-29
Applicant: Apple Inc.
Inventor： Mo-han Fong , Sophie Vrzic , Robert Novak , Jun Yuan , Dong-Sheng Yu
Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions. In some embodiments of the invention, a 3-state acknowledgement channel and associated error recovery operation enables the base station and mobile station to recover from control signaling error and reduce packet loss.
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公开(公告)号：US10965406B2
公开(公告)日：2021-03-30
申请号：US16706759
申请日：2019-12-08
Applicant: Apple Inc.
Inventor： Mo-han Fong , Sophie Vrzic , Robert Novak , Jun Yuan , Dong-Sheng Yu
IPC: H04L1/18 , H04W72/04 , H04W72/12 , H04W72/00 , H04L5/14 , H04L5/00 , H04L1/00 , H04L27/26 , H04W88/04 , H04W88/06 , H04W28/04
Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions. In some embodiments of the invention, a 3-state acknowledgement channel and associated error recovery operation enables the base station and mobile station to recover from control signaling error and reduce packet loss.
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公开(公告)号：US10541786B2
公开(公告)日：2020-01-21
申请号：US16004740
申请日：2018-06-11
Applicant: Apple Inc.
Inventor： Mo-han Fong , Sophie Vrzic , Robert Novak , Jun Yuan , Dong-Sheng Yu
IPC: H04W72/04 , H04L1/18 , H04W72/12 , H04W72/00 , H04L5/14 , H04L5/00 , H04L1/00 , H04L27/26 , H04W88/04 , H04W88/06 , H04W28/04
Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions. In some embodiments of the invention, a 3-state acknowledgement channel and associated error recovery operation enables the base station and mobile station to recover from control signaling error and reduce packet loss.
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