SIGNALING FOR WIRELESS COMMUNICATIONS
    33.
    发明申请
    SIGNALING FOR WIRELESS COMMUNICATIONS 有权
    无线通信信令

    公开(公告)号:US20150245352A1

    公开(公告)日:2015-08-27

    申请号:US14691568

    申请日:2015-04-20

    Abstract: A communication system, such as a wireless CDMA system, detects markers with fewer errors by having field units transmit the markers at different power levels (e.g., 9 dB for one marker and 11 dB for another marker). The difference in power levels of the markers allows the base station to identify the request markers using alternative criteria with a low probability of error, where the alternative criteria may include comparing the markers to respective energy level thresholds, monitoring occupancy of time slots, occupancy of mutually exclusive code channels, or combinations thereof. For example, in one particular embodiment, a request marker, which is generally a high priority marker, is transmitted with higher power, which improves the probability of detection and reduces the probability of false detection of the request marker.

    Abstract translation: 诸如无线CDMA系统的通信系统通过使现场单元以不同的功率电平(例如,一个标记为9dB,另一个标记为11dB)来发送标记,来检测具有较少错误的标记。 标记的功率水平的差异允许基站使用具有低概率误差的替代标准来识别请求标记,其中替代标准可以包括将标记与相应的能级阈值进行比较,监视时隙的占用, 相互排斥的代码信道或其组合。 例如,在一个具体实施例中,通常是高优先级标记的请求标记以更高的功率发送,这提高了检测的概率,并降低了请求标记的错误检测的可能性。

    Variable Rate Coding for Forward and Reverse Link
    34.
    发明申请
    Variable Rate Coding for Forward and Reverse Link 有权
    前向和反向链路的可变速率编码

    公开(公告)号:US20140181622A1

    公开(公告)日:2014-06-26

    申请号:US14183181

    申请日:2014-02-18

    CPC classification number: H04L1/0041 H03M13/03 H04L1/0009 H04L1/0025

    Abstract: A technique for encoding a signal used in a digital communication system in which individual traffic channel data rates may be adapted to specific channel conditions. In particular, a forward error correction coding rate is adapted for individual channels while at the same time maintaining a fixed block size independent of the FEC coding rate. This allows the system data rate to adapt to the channel conditions experienced by a specific user. Thus, users experiencing good communication conditions with low multipath distortion may be allocated higher capacity, whereas users with significant multipath distortion may make use of lower rate (higher levels of coding) error codes to maintain high quality. Messages are sent from a transmitter to a receiver to inform the receiver of the coding rate implemented at any given point in time. These parameters may be adjusted independent of transmitted power level through the expedient of ensuring that size of a transmitted frame remains constant, while permitting the ability to change FEC coding rates and FEC block sizes.

    Abstract translation: 用于对在数字通信系统中使用的信号进行编码的技术,其中个体业务信道数据速率可以适应于特定信道条件。 特别地,前向纠错编码率适用于各个信道,同时保持独立于FEC编码率的固定块大小。 这允许系统数据速率适应特定用户经历的频道条件。 因此,具有低多径失真的良好通信条件的用户可以被分配较高的容量,而具有显着的多径失真的用户可以利用较低的速率(较高编码水平)的错误代码来维持高质量。 消息从发射机发送到接收机,以通知接收机在任何给定时间点实现的编码速率。 可以通过确保发送帧的大小保持恒定的方式来独立于发射功率电平来调整这些参数,同时允许改变FEC编码速率和FEC块大小的能力。

    REPEATER HAVING DUAL RECEIVER OR TRANSMITTER ANTENNA CONFIGURATION WITH ADAPTATION FOR INCREASED ISOLATION
    37.
    发明申请
    REPEATER HAVING DUAL RECEIVER OR TRANSMITTER ANTENNA CONFIGURATION WITH ADAPTATION FOR INCREASED ISOLATION 审中-公开
    具有双接收机或发射机天线配置的转接器适应增加的隔离

    公开(公告)号:US20100002620A1

    公开(公告)日:2010-01-07

    申请号:US12307801

    申请日:2007-08-31

    Abstract: A repeater for a wireless communication network includes a reception antenna and first and second transmission antennas. The repeater also includes a weighting circuit which applies a weight to at least one of first and second signals on first and second transmission paths coupled to the first and second transmission antennas respectively, and a control circuit configured to control the weighting circuit in accordance with an adaptive algorithm to thereby increase isolation between a reception path coupled to the reception antenna and the first and second transmission paths.

    Abstract translation: 无线通信网络的中继器包括接收天线和第一和第二发射天线。 中继器还包括加权电路,该加权电路对耦合到第一和第二发送天线的第一和第二传输路径分别对第一和第二信号中的至少一个施加权重;以及控制电路,被配置为根据 自适应算法,从而增加耦合到接收天线的接收路径与第一和第二传输路径之间的隔离。

    USE OF CORRELATION COMBINATION TO ACHIEVE CHANNEL DETECTION
    38.
    发明申请
    USE OF CORRELATION COMBINATION TO ACHIEVE CHANNEL DETECTION 审中-公开
    使用相关组合实现通道检测

    公开(公告)号:US20090257479A1

    公开(公告)日:2009-10-15

    申请号:US12488798

    申请日:2009-06-22

    Abstract: Combinations of correlation results are used to achieve detection of multiple coded signals at a receiver in a wireless communications system. The code applied to signals includes a lower rate code and a higher rate code. The lower rate code is a nested or tiered code such that it comprises at least two code sequences of the higher rate code. The received coded signal is correlated with the higher rate code using a single higher rate correlator to provide a higher rate code correlation result. The higher rate code correlation results are fed to two or more lower rate code correlators that combine multiple higher rate code correlation results, each using a different lower rate code, to provide corresponding lower rate code correlation results. The presence of at least one coded signal or mutually exclusive coded signals can be determined from the lower rate code correlation results.

    Abstract translation: 使用相关结果的组合来实现在无线通信系统中的接收机处的多个编码信号的检测。 应用于信号的代码包括较低速率代码和较高速率代码。 较低速率代码是嵌套或分层代码,使得其包括较高速率代码的至少两个代码序列。 接收到的编码信号与较高速率码相关,使用单个较高速率的相关器提供较高的速率码相关结果。 将较高速率码相关结果馈送到两个或更多个组合多个较高速率码相关结果的较低速率码相关器,每个使用不同的较低速率码,以提供相应的较低速率码相关结果。 可以从较低速率码相关结果确定至少一个编码信号或互斥编码信号的存在。

    USE OF CORRELATION COMBINATION TO ACHIEVE CHANNEL DETECTION
    39.
    发明申请
    USE OF CORRELATION COMBINATION TO ACHIEVE CHANNEL DETECTION 有权
    使用相关组合实现通道检测

    公开(公告)号:US20140177608A1

    公开(公告)日:2014-06-26

    申请号:US14137099

    申请日:2013-12-20

    Abstract: Combinations of correlation results are used to achieve detection of multiple coded signals at a receiver in a wireless communications system. The code applied to signals includes a lower rate code and a higher rate code. The lower rate code is a nested or tiered code such that it comprises at least two code sequences of the higher rate code. The received coded signal is correlated with the higher rate code using a single higher rate correlator to provide a higher rate code correlation result. The higher rate code correlation results are fed to two or more lower rate code correlators that combine multiple higher rate code correlation results, each using a different lower rate code, to provide corresponding lower rate code correlation results. The presence of at least one coded signal or mutually exclusive coded signals can be determined from the lower rate code correlation results.

    Abstract translation: 使用相关结果的组合来实现在无线通信系统中的接收机处的多个编码信号的检测。 应用于信号的代码包括较低速率代码和较高速率代码。 较低速率代码是嵌套或分层代码,使得其包括较高速率代码的至少两个代码序列。 接收到的编码信号与较高速率码相关,使用单个较高速率的相关器提供较高的速率码相关结果。 将较高速率码相关结果馈送到两个或更多个组合多个较高速率码相关结果的较低速率码相关器,每个使用不同的较低速率码,以提供相应的较低速率码相关结果。 可以从较低速率码相关结果确定至少一个编码信号或互斥编码信号的存在。

    TIME-SLOTTED DATA PACKETS WITH A PREAMBLE
    40.
    发明申请

    公开(公告)号:US20130242950A1

    公开(公告)日:2013-09-19

    申请号:US13891427

    申请日:2013-05-10

    Abstract: A method and apparatus are used to support the transmission of data to a user over multiple allocated data channels. Data packets are transmitted in timeslots of the allocated data channels to corresponding target receivers without the need for explicitly assigning particular time-slots to a target user well in advance of transmitting any data packets in the time-slots. Instead, each data packet transmitted in a time-slot includes a header label or preamble indicating to which of multiple possible receivers a data packet is directed. The preamble also preferably includes decoding information indicating how a corresponding data payload of the data packet is to be processed for recapturing transmitted raw data.

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