TCP enhancement with limited licensed channel usage for wireless networks

    公开(公告)号:US10045221B2

    公开(公告)日:2018-08-07

    申请号:US14132360

    申请日:2013-12-18

    Abstract: Methods, systems, and devices are described for operating a communications system using both licensed and unlicensed frequency bands. Unlicensed spectrum may be used as a primary band for transmitting data packets and TCP may be implemented for selectively transmitting (e.g., retransmitting) a subset of the transmitted data packets via licensed spectrum. Selective transmission of the subset of data packets via licensed spectrum may be based on a transmitter failing to receive and acknowledgment (ACK) message in response to one or more transmitted data packets on the unlicensed spectrum. Selective retransmission may be based on a transmitter detecting interference and/or it may be based on a receiver reporting information about channel conditions. In some cases, a transmitter may simultaneously receive channel condition information for both licensed and unlicensed spectrum. In other cases, unlicensed spectrum may be utilized for data packet transmission and licensed spectrum may be utilized for ACK messages.

    REPAIR OF CARRIER-PHASE CYCLE SLIPS USING DISPLACEMENT DATA

    公开(公告)号:US20180074206A1

    公开(公告)日:2018-03-15

    申请号:US15265685

    申请日:2016-09-14

    CPC classification number: G01S19/22 G01S19/26 G01S19/29 G01S19/44

    Abstract: The disclosure generally relates to position sensors, and more particularly to repair of carrier-phase cycle slips using displacement data. An apparatus for use in position sensing may include a displacement sensor, a positioning signal receiver, a memory, and a processor coupled to the displacement sensor, the positioning signal receiver, and the memory. The processor and memory may be configured to processor and memory are configured to detect a loss of lock of a first carrier tracking loop associated with the first set of carrier-phase measurements, wherein the first carrier tracking loop is associated with a first integer ambiguity, estimate, based on the displacement data, an ambiguity increment to the first integer ambiguity subsequent to the detected loss of lock, and resolve a second integer ambiguity associated with the second set of positioning signals based on the first integer ambiguity and the estimated ambiguity increment.

    DETECTION OF OUTLIER RANGE MEASUREMENTS USING SPATIAL DISPLACEMENT DATA

    公开(公告)号:US20180074205A1

    公开(公告)日:2018-03-15

    申请号:US15265617

    申请日:2016-09-14

    CPC classification number: G01S19/22 G01S19/26 G01S19/29

    Abstract: The disclosure generally relates to position sensors, and more particularly to outlier detection using spatial displacement data. An apparatus for use in position sensing may include a displacement sensor, a positioning signal receiver having a receiver clock, a memory, and a processor coupled to the displacement sensor, the positioning signal receiver, and the memory. The processor and memory may be configured to calculate a change in a receiver clock bias of the receiver clock based on range measurements and spatial-based displacement data, propagate a first range measurement based, at least in part, on the spatial-based displacement data and the change in the receiver clock bias, and determine an outlier range measurement based, at least in part, on the propagated first range measurement.

    Location based use of the DSRC spectrum
    65.
    发明授权
    Location based use of the DSRC spectrum 有权
    基于位置的DSRC频谱使用

    公开(公告)号:US09554353B2

    公开(公告)日:2017-01-24

    申请号:US13889089

    申请日:2013-05-07

    Abstract: Methods, systems, and devices are described for using location information to determine whether to use at least a portion of a dedicated short range communications (DSRC) spectrum. Current location information of a multi-mode device is determined. The multi-mode device is operating outside of the DSRC spectrum. The current location information is used to determine whether the multi-mode device is located outside of geographical region attributed to DSRC transmissions. Upon determining that the multi-mode device is located outside of the geographical region, at least a portion of the DSRC spectrum is used for transmissions by the multi-mode device.

    Abstract translation: 描述了使用位置信息来确定是否使用专用短距离通信(DSRC)频谱的至少一部分的方法,系统和设备。 确定多模式设备的当前位置信息。 多模式设备在DSRC频谱之外运行。 当前位置信息用于确定多模式设备是否位于归因于DSRC传输的地理区域之外。 在确定多模式设备位于地理区域之外时,DSRC频谱的至少一部分被用于多模式设备的传输。

    Hybrid interference alignment for mixed macro-FEMTO base station downlink
    66.
    发明授权
    Hybrid interference alignment for mixed macro-FEMTO base station downlink 有权
    混合宏观FEMTO基站下行链路的混合干扰对齐

    公开(公告)号:US08971906B2

    公开(公告)日:2015-03-03

    申请号:US13744109

    申请日:2013-01-17

    CPC classification number: H04W72/082 H04B7/0413 H04B7/0452

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is a first BS. The apparatus determines a first channel between a second BS and a first UE served by a third BS, determines a second channel between the first base station and the first UE, and determines a first direction vector to be used by the second base station for sending a data transmission. The apparatus transmits a set of resource blocks to a second UE served by the first base station with a second direction vector determined based on the first channel, the second channel, and the first direction vector to be used by the second base station.

    Abstract translation: 提供了一种用于无线通信的方法,装置和计算机程序产品。 该装置是第一BS。 该装置确定由第三BS服务的第二BS与第一UE之间的第一信道,确定第一基站与第一UE之间的第二信道,并且确定要由第二基站用于发送的第一方向向量 数据传输。 该装置利用由第二基站使用的基于第一信道,第二信道和第一方向向量确定的第二方向向量向第一基站服务的第二UE发送一组资源块。

    Opportunistic interference alignment for multi-cell multi-user uplink
    67.
    发明授权
    Opportunistic interference alignment for multi-cell multi-user uplink 有权
    多小区多用户上行链路的机会干扰对齐

    公开(公告)号:US08908606B2

    公开(公告)日:2014-12-09

    申请号:US13747601

    申请日:2013-01-23

    CPC classification number: H04W72/082 H04B7/0404 H04B7/0413 H04B7/0617

    Abstract: A UE receives information indicating a receive direction vector for a serving BS and a set of receive direction vectors for at least one interfering BS. The UE determines a channel between the UE and the serving BS and a set of channels between the UE and each of the at least one interfering BS. The UE determines a transmit direction vector to apply to modulated symbols for mapping to a set of resource blocks for an uplink transmission based on the channel, the set of channels, the receive direction vector, and the set of receive direction vectors. The UE determines an interference caused to the at least one interfering BS by the uplink transmission based on the transmit direction vector, the set of channels, and the set of receive direction vectors. The UE transmits information indicating the interference to the serving BS.

    Abstract translation: UE接收指示用于服务BS的接收方向向量的信息和用于至少一个干扰BS的一组接收方向向量。 UE确定UE与服务BS之间的信道以及UE与至少一个干扰BS中的每一个之间的一组信道。 UE基于信道,信道集合,接收方向向量和接收方向向量集合,确定应用于调制符号的发射方向矢量以映射到上行链路传输的一组资源块。 UE基于发送方向向量,信道集合和接收方向向量集,确定通过上行链路传输对至少一个干扰BS造成的干扰。 UE向服务BS发送指示干扰的信息。

    HYBRID INTERFERENCE ALIGNMENT FOR MIXED MACRO-FEMTO BASE STATION DOWNLINK
    68.
    发明申请
    HYBRID INTERFERENCE ALIGNMENT FOR MIXED MACRO-FEMTO BASE STATION DOWNLINK 有权
    混合MACRO-FEMTO基站下载的混合干扰对齐

    公开(公告)号:US20140200010A1

    公开(公告)日:2014-07-17

    申请号:US13744109

    申请日:2013-01-17

    CPC classification number: H04W72/082 H04B7/0413 H04B7/0452

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is a first BS. The apparatus determines a first channel between a second BS and a first UE served by a third BS, determines a second channel between the first base station and the first UE, and determines a first direction vector to be used by the second base station for sending a data transmission. The apparatus transmits a set of resource blocks to a second UE served by the first base station with a second direction vector determined based on the first channel, the second channel, and the first direction vector to be used by the second base station.

    Abstract translation: 提供了一种用于无线通信的方法,装置和计算机程序产品。 该装置是第一BS。 该装置确定由第三BS服务的第二BS与第一UE之间的第一信道,确定第一基站与第一UE之间的第二信道,并且确定要由第二基站用于发送的第一方向向量 数据传输。 该装置利用由第二基站使用的基于第一信道,第二信道和第一方向向量确定的第二方向向量向第一基站服务的第二UE发送一组资源块。

    METHODS AND APPARATUS FOR FEEDBACK COMPUTATION AND DECODING WITH SYNCHRONOUSLY CODED SUBCARRIERS IN OFDMA SYSTEMS
    69.
    发明申请
    METHODS AND APPARATUS FOR FEEDBACK COMPUTATION AND DECODING WITH SYNCHRONOUSLY CODED SUBCARRIERS IN OFDMA SYSTEMS 有权
    用于在OFDMA系统中进行反馈计算和解码同步编码子程序的方法和装置

    公开(公告)号:US20140105121A1

    公开(公告)日:2014-04-17

    申请号:US13653295

    申请日:2012-10-16

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE receives pilot signals from a serving base station and at least one interfering base station. The UE determines phase rotations used by the serving base station and the at least one interfering base station for transmitting resource blocks. The UE determines channel feedback based on the received pilots signals and the determined phase rotations for each of the serving base station and the at least one interfering base station. The UE sends the channel feedback to the serving base station. The UE receives data based on the determined phase rotations.

    Abstract translation: 提供了一种用于无线通信的方法,装置和计算机程序产品。 该装置可以是UE。 UE从服务基站和至少一个干扰基站接收导频信号。 UE确定由服务基站和至少一个干扰基站用于发送资源块的相位旋转。 UE基于接收到的导频信号和针对服务基站和至少一个干扰基站中的每一个确定的相位旋转来确定信道反馈。 UE向服务基站发送信道反馈。 UE基于确定的相位旋转接收数据。

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