-
公开(公告)号：US20200154433A1
公开(公告)日：2020-05-14
申请号：US16747156
申请日：2020-01-20
Applicant: Apple Inc.
Inventor： Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
-
公开(公告)号：US10321440B2
公开(公告)日：2019-06-11
申请号：US15595404
申请日：2017-05-15
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
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.
-
公开(公告)号：US10205560B2
公开(公告)日：2019-02-12
申请号：US15491530
申请日：2017-04-19
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.
-
公开(公告)号：US10039100B2
公开(公告)日：2018-07-31
申请号：US15486594
申请日：2017-04-13
Applicant: Apple Inc.
Inventor： Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
IPC: H04W80/04 , H04W72/04 , H04B7/12 , H04L5/00 , H04L25/02 , H04L29/06 , H04B7/06 , H04L1/00 , H04L1/06 , H04L1/18 , H04L25/03 , H04L27/26 , H04B7/02
CPC classification number: H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
-
公开(公告)号：US20170324523A1
公开(公告)日：2017-11-09
申请号：US15602318
申请日：2017-05-23
Applicant: Apple Inc.
Inventor： Sophie Vrzic , Dong-Sheng Yu , Mo-Han Fong
CPC classification number: H04L5/0005 , H04L5/0007 , H04L5/003 , H04L5/0039 , H04L5/0041 , H04L5/0044 , H04L5/0046 , H04L5/0053 , H04L5/0092 , H04L5/0094 , H04W72/044 , H04W72/0446
Abstract: Methods and systems are described that are suitable for channelization, in particular, but not limited to, the IEEE 80216.m telecommunications standard. For a time-frequency resource, physical sub-carriers for each of one or more zones in the time-frequency resource are assigned to one or more zones having a respective type of transmission. At least one zone is allocated for a type of transmission using localized sub-carriers. The physical sub-carriers assigned to each zone are permuted to map to logical sub-carriers. Groups of resource blocks are formed, in which each resource block includes at least one logical sub-carrier for each of the one or more zones. The information defining the groups of resource blocks for each of the one or more zones can then be transmitted to a user. The information may be in the form of a zone configuration index.
-
Patent Agency Ranking
公开(公告)号：US20170265178A1
公开(公告)日：2017-09-14
申请号：US15595404
申请日：2017-05-15
Applicant: Apple Inc.
Inventor： Mo-Han Fong , Hang Zhang , Sophie Vrzic , Robert Novak , Jun Yuan , Dong-Sheng Yu
CPC classification number: H04W72/0406 , H04L1/1812 , H04L5/0055 , H04L5/0057 , H04W24/10 , H04W48/10 , H04W48/12 , H04W48/14 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/085 , H04W88/06
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.
-
公开(公告)号：US20170126301A1
公开(公告)日：2017-05-04
申请号：US15357552
申请日：2016-11-21
Applicant: APPLE INC.
Inventor： Mahmoud Taherzadehboroujeni , Hosein Nikopour , Amir Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
IPC: H04B7/06 , H04B7/0413
CPC classification number: H04B7/0669 , H04B7/0413 , H04B7/06 , H04B7/0697 , H04B7/0891 , H04L1/0606 , H04L1/0625 , H04L1/0643 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L27/2626
Abstract: Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined
-
公开(公告)号：US09277569B2
公开(公告)日：2016-03-01
申请号：US14618558
申请日：2015-02-10
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 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.
Abstract translation: 提供一种具有用于在无线通信网络中提供信道估计和数据解调的上行链路控制结构的方法和系统。 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。
-
公开(公告)号：US09270510B2
公开(公告)日：2016-02-23
申请号：US13944022
申请日：2013-07-17
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang , Hua Xu , Dong-Sheng Yu
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).
-
公开(公告)号：US20160043833A1
公开(公告)日：2016-02-11
申请号：US14918934
申请日：2015-10-21
Applicant: Apple Inc.
Inventor： Mo-Han Fong , Sophie Vrzic , Robert Novak , Jun Yuan , Dong-Sheng Yu
CPC classification number: H04L1/1812 , H04L1/0003 , H04L1/0009 , H04L1/1816 , H04L1/1861 , H04L1/1887 , H04L1/1896 , H04L5/0055 , H04L5/14 , H04L27/2659 , H04L27/2666 , H04W28/04 , H04W72/005 , H04W72/042 , H04W72/044 , H04W72/0446 , H04W72/0453 , H04W72/1257 , H04W72/1268 , H04W88/04 , H04W88/06
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.
-
-
-
-
-
-
-
-
-
Search Results
90
records
(took 0.025 seconds)
