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公开(公告)号：US20240057104A1
公开(公告)日：2024-02-15
申请号：US18493422
申请日：2023-10-24
Applicant: Wi-LAN Inc.
Inventor： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
IPC: H04W72/23 , H04J11/00 , H04W72/541 , H04W4/00
CPC classification number: H04W72/23 , H04J11/0069 , H04W72/541 , H04W4/00 , H04B2201/70701 , H04B2201/70702
Abstract: A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
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公开(公告)号：US10075272B2
公开(公告)日：2018-09-11
申请号：US15811954
申请日：2017-11-14
Applicant: Wi-Fi One, LLC
Inventor： Yutaka Murakami , Kiyotaka Kobayashi , Masayuki Orihashi
CPC classification number: H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
Abstract: A transmission apparatus maps a first stream of input data to first complex symbols in serial format and convert them into first complex symbols in parallel format. They are inverse Fourier transformed into OFDM signals associated with multiple subcarriers that are transmitted via a first antenna over the multiple subcarriers in a same frequency band over a same time period that includes a same set of time slots. First pilot information is transmitted via a first antenna on a first one of a plurality of pilot subcarriers during the same set of time slots, and second pilot information is sent via a first antenna on a second one of a plurality of pilot subcarriers during the same set of time slots. The second pilot information is different from the first pilot information. A second stream of input data is similarly transformed to form second OFDM signals transmit via a second antenna over the multiple subcarriers in the same frequency band over the same time period that includes the same set of time slots. The first pilot information is transmitted via the second antenna on the second pilot subcarrier during the set of same time slots, and the second pilot information is transmitted on one of the pilot subcarriers during the same set of time slots.
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公开(公告)号：US20180242292A1
公开(公告)日：2018-08-23
申请号：US15956820
申请日：2018-04-19
Applicant: Wi-LAN Inc.
Inventor： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
CPC classification number: H04W72/042 , H04B2201/70701 , H04B2201/70702 , H04J11/0069 , H04W4/00 , H04W72/082
Abstract: A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
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公开(公告)号：US09967870B2
公开(公告)日：2018-05-08
申请号：US14959721
申请日：2015-12-04
Applicant: Wi-LAN INC.
Inventor： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
CPC classification number: H04W72/042 , H04B2201/70701 , H04B2201/70702 , H04J11/0069 , H04W4/00 , H04W72/082
Abstract: A method of wireless communication including a base station transmitting a preamble including information indicating a sector identifier and an antenna port value. The base station further transmits a pilot sequence, wherein the pilot sequence and the location of the pilot sequence are based on the sector identifier and on the antenna port value. A base station configured to perform the method is also disclosed. A corresponding subscriber station configured to receive the preamble and pilot sequence is also disclosed, as well as a subscriber station method.
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公开(公告)号：US20180076939A1
公开(公告)日：2018-03-15
申请号：US15811954
申请日：2017-11-14
Applicant: Wi-Fi One, LLC
Inventor： Yutaka Murakami , Kiyotaka Kobayashi , Masayuki Orihashi
IPC: H04L5/00 , H04L27/26 , H04B7/0413
CPC classification number: H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
Abstract: A transmission apparatus maps a first stream of input data to first complex symbols in serial format and convert them into first complex symbols in parallel format. They are inverse Fourier transformed into OFDM signals associated with multiple subcarriers that are transmitted via a first antenna over the multiple subcarriers in a same frequency band over a same time period that includes a same set of time slots. First pilot information is transmitted via a first antenna on a first one of a plurality of pilot subcarriers during the same set of time slots, and second pilot information is sent via a first antenna on a second one of a plurality of pilot subcarriers during the same set of time slots. The second pilot information is different from the first pilot information. A second stream of input data is similarly transformed to form second OFDM signals transmit via a second antenna over the multiple subcarriers in the same frequency band over the same time period that includes the same set of time slots. The first pilot information is transmitted via the second antenna on the second pilot subcarrier during the set of same time slots, and the second pilot information is transmitted on one of the pilot subcarriers during the same set of time slots.
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Patent Agency Ranking
公开(公告)号：US09900046B2
公开(公告)日：2018-02-20
申请号：US13131675
申请日：2009-11-27
Applicant: Nicholas William Anderson
Inventor： Nicholas William Anderson
CPC classification number: H04B1/707 , H04B2201/70701 , H04J13/0077 , H04J13/20 , H04L27/2607
Abstract: A composite signal may be generated with code division multiplexing (CDM) and time division multiplexing (TDM) pilots. A first pilot sequence may be a CDM pilot sequence. A second pilot sequence may have TDM pilot sequences including a cyclic prefix. The composite signal may have a cyclic prefix time domain portion based on the cyclic prefix and a base portion of the composite signal.
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7.发明申请公开(公告)号：US20170366315A1
公开(公告)日：2017-12-21
申请号：US15696790
申请日：2017-09-06
Applicant: NEC Corporation
Inventor： Kengo OKETANI , Yoshikazu KAKURA
CPC classification number: H04L5/0044 , H04B2201/70701 , H04J13/0059 , H04J13/0062 , H04J13/16 , H04L5/0007 , H04L5/0048 , H04W28/04 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/0446
Abstract: A device and method is which plurality of Zadoff-Chu sequences is allocated to a frame, a value of a parameter in the Zadoff-Chu sequence is different among the plurality of Zadoff-Chu sequences, and the Zadoff-Chu sequence allocated to the frame is different among a plurality of cells.
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公开(公告)号：US09787421B2
公开(公告)日：2017-10-10
申请号：US15075947
申请日：2016-03-21
Applicant: NEC Corporation
Inventor： Kengo Oketani , Yoshikazu Kakura
CPC classification number: H04L5/0044 , H04B2201/70701 , H04J13/0059 , H04J13/0062 , H04J13/16 , H04L5/0007 , H04L5/0048 , H04W28/04 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/0446
Abstract: A device and method in which plurality of Zadoff-Chu sequences is allocated to a frame, a value of a parameter in the Zadoff-Chu sequence is different among the plurality of Zadoff-Chu sequences, and the Zadoff-Chu sequence allocated to the frame is different among a plurality of cells.
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公开(公告)号：US09628228B2
公开(公告)日：2017-04-18
申请号：US13943336
申请日：2013-07-16
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Tao Luo
CPC classification number: H04L5/0032 , H04B1/7097 , H04B15/00 , H04B2201/70701 , H04B2201/70702 , H04J11/005 , H04J11/0069 , H04L5/0048 , H04L27/2657 , H04L27/2662 , H04W24/02 , H04W72/082
Abstract: Obtaining a timing reference in wireless communication is facilitated when desiring to communicate with a weak serving base station (such as an evolved NodeB) in the presence of a stronger interfering base station. The user equipment (UE) may track a stronger interfering base station's timing, or the UE may track a timing that is derived by a composite power delay profile (PDP) from multiple base stations. The composite PDP may be constructed by adjusting individual base station PDPs according to a weighting scheme. The timing obtained in such a manner may be used for estimation of the channel of the interfering base station and cancelling interfering signals from the base station. It may also be used to estimate the channel of the serving base station after adding a backoff. The UE may track a stronger interfering base station's frequency, or the UE may track a composite frequency.
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公开(公告)号：US09525977B2
公开(公告)日：2016-12-20
申请号：US11117920
申请日：2005-04-29
Applicant: Anand G. Dabak , Eko N. Onggosanusi , Aris Papasakellariou
Inventor： Anand G. Dabak , Eko N. Onggosanusi , Aris Papasakellariou
CPC classification number: H04W4/06 , H04B2201/70701 , H04J13/00 , H04L5/0007 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04L25/03159 , H04L27/2678 , H04W28/06 , H04W72/005
Abstract: A broadcast/multicast transmission format includes a data portion and a cyclic prefix (CP) coupled to the traffic data portion. A method and system for providing broadcast/multicast transmissions with the application to communication systems that perform broadcast or multicast transmission is also disclosed. The addition of a pilot to the data portion of the transmissions is also disclosed.
Abstract translation: 广播/多播传输格式包括耦合到业务数据部分的数据部分和循环前缀（CP）。 还公开了一种用于向执行广播或组播传输的通信系统提供应用的广播/多播传输的方法和系统。 还公开了向传输的数据部分添加导频。
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