METHOD AND APPARATUS FOR TRANSMITTING NON-DECODABLE PACKETS
    3.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING NON-DECODABLE PACKETS 审中-公开
    用于发送非可解码分组的方法和装置

    公开(公告)号:US20090046713A1

    公开(公告)日:2009-02-19

    申请号:US12188851

    申请日:2008-08-08

    IPC分类号: H04L12/56

    CPC分类号: H04L1/1819 H04L1/1854

    摘要: Acknowledgments (ACKs/NACKs) are suppressed when transmitting non-decodable packets in a communication system that utilizes HARQ. Non-decodable packets are transmitted to save system bandwidth and make the overall spectral efficiency higher. The transmitter and receiver know that in HARQ when the transmitter transmits a non-decodable packet to the receiver, this will cause the receiver to automatically transmit back a NACK. The transmitter and receiver exploit this fact by discarding and/or not transmitting the NACK (respectively).

    摘要翻译: 在使用HARQ的通信系统中发送不可解码分组时,确认(ACK / NACK)被抑制。 传输不可解码数据包以节省系统带宽,使总体频谱效率更高。 发射机和接收机知道,当发射机向接收机发送不可解码的分组时,在HARQ中,这将导致接收机自动发送NACK。 发射机和接收机通过分别丢弃和/或不发送NACK来分别利用这一事实。

    SYSTEMS AND METHODS THAT UTILIZE A CAPACITY-BASED SIGNAL-TO-NOISE RATIO TO PREDICT AND IMPROVE MOBILE COMMUNICATION
    6.
    发明申请
    SYSTEMS AND METHODS THAT UTILIZE A CAPACITY-BASED SIGNAL-TO-NOISE RATIO TO PREDICT AND IMPROVE MOBILE COMMUNICATION 审中-公开
    利用基于能力的信号与噪声比进行预测和改进移动通信的系统和方法

    公开(公告)号:US20100029265A1

    公开(公告)日:2010-02-04

    申请号:US12577659

    申请日:2009-10-12

    IPC分类号: H04W24/00

    摘要: Techniques for utilizing a capacity-based effective signal-to-noise ratio (SNR) to improve wireless communication are described herein. In an embodiment, a mobile terminal can determine the effective SNR from a forward link channel using pilot/data symbols. The mobile terminal can convey the effective SNR to a base station. In order to minimize transmission overhead, the mobile terminal can quantize the effective SNR prior to transmitting it to the base station. In another embodiment, the base station can determine the effective SNR from a reverse link. The base station can utilize the effective SNR to facilitate scheduling transmissions from the mobile terminal, transmitting power control commands to the mobile terminal, and determining a supporting data rate for the mobile terminal, for example. Suitable SNRs include constrained, unconstrained, average, and/or approximated effective SNRs. In addition, various filters, such as an averaging filter, can be utilized to further process the effective SNR.

    摘要翻译: 这里描述了利用基于容量的有效信噪比(SNR)来改善无线通信的技术。 在一个实施例中,移动终端可以使用导频/数据符号从前向链路信道确定有效SNR。 移动终端可以将有效SNR传送给基站。 为了最小化传输开销,移动终端可以在将其发送到基站之前量化有效SNR。 在另一个实施例中,基站可以从反向链路确定有效SNR。 基站可以利用有效SNR来促进调度来自移动终端的传输,向移动终端发送功率控制命令,以及确定移动终端的支持数据速率。 合适的SNR包括约束的,无约束的,平均的和/或近似的有效SNR。 此外,可以使用诸如平均滤波器的各种滤波器来进一步处理有效SNR。

    Systems and methods that utilize a capacity-based signal-to-noise ratio to predict and improve mobile communication
    7.
    发明授权
    Systems and methods that utilize a capacity-based signal-to-noise ratio to predict and improve mobile communication 失效
    利用基于容量的信噪比来预测和改进移动通信的系统和方法

    公开(公告)号:US07623490B2

    公开(公告)日:2009-11-24

    申请号:US11021697

    申请日:2004-12-22

    IPC分类号: H04W4/00

    摘要: Techniques for utilizing a capacity-based effective signal-to-noise ratio (SNR) to improve wireless communication are described herein. In an embodiment, a mobile terminal can determine the effective SNR from a forward link channel using pilot/data symbols. The mobile terminal can convey the effective SNR to a base station. In order to minimize transmission overhead, the mobile terminal can quantize the effective SNR prior to transmitting it to the base station. In another embodiment, the base station can determine the effective SNR from a reverse link. The base station can utilize the effective SNR to facilitate scheduling transmissions from the mobile terminal, transmitting power control commands to the mobile terminal, and determining a supporting data rate for the mobile terminal, for example. Suitable SNRs include constrained, unconstrained, average, and/or approximated effective SNRs. In addition, various filters, such as an averaging filter, can be utilized to further process the effective SNR.

    摘要翻译: 这里描述了利用基于容量的有效信噪比(SNR)来改善无线通信的技术。 在一个实施例中,移动终端可以使用导频/数据符号从前向链路信道确定有效SNR。 移动终端可以将有效SNR传送给基站。 为了最小化传输开销,移动终端可以在将其发送到基站之前量化有效SNR。 在另一个实施例中,基站可以从反向链路确定有效SNR。 基站可以利用有效SNR来促进调度来自移动终端的传输,向移动终端发送功率控制命令,以及确定移动终端的支持数据速率。 合适的SNR包括约束的,无约束的,平均的和/或近似的有效SNR。 此外,可以使用诸如平均滤波器的各种滤波器来进一步处理有效SNR。

    On-demand reverse-link pilot transmission
    8.
    发明授权
    On-demand reverse-link pilot transmission 有权
    按需反向链路导频传输

    公开(公告)号:US08259669B2

    公开(公告)日:2012-09-04

    申请号:US12721906

    申请日:2010-03-11

    IPC分类号: H04W4/00

    CPC分类号: H04W74/04 H04W74/002

    摘要: Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.

    摘要翻译: 飞行员根据需要在反向链路上传输,用于前向链路上的信道估计和数据传输。 基站在反向链路上选择至少一个用于按需导频发送的终端。 每个选择的终端是用于在前向链路上接收数据传输的候选者。 基站为每个选择的终端分配时间频率分配,其可以用于宽带导频,窄带导频或某种其他类型的导频。 基站从每个所选终端接收并处理按需导频传输,并根据接收到的导频传输导出终端的信道估计。 基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。 基站还可以基于其信道估计来处理数据(例如,执行波束成形或本征导向)以传输到每个调度的终端。

    On-demand reverse-link pilot transmission
    9.
    发明授权
    On-demand reverse-link pilot transmission 有权
    按需反向链路导频传输

    公开(公告)号:US07706324B2

    公开(公告)日:2010-04-27

    申请号:US11129636

    申请日:2005-05-13

    CPC分类号: H04W74/04 H04W74/002

    摘要: Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.

    摘要翻译: 飞行员根据需要在反向链路上传输,用于前向链路上的信道估计和数据传输。 基站在反向链路上选择至少一个用于按需导频发送的终端。 每个选择的终端是用于在前向链路上接收数据传输的候选者。 基站为每个选择的终端分配时间频率分配,其可以用于宽带导频,窄带导频或某种其他类型的导频。 基站从每个所选终端接收并处理按需导频传输,并根据接收到的导频传输导出终端的信道估计。 基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。 基站还可以基于其信道估计来处理数据(例如,执行波束成形或本征导向)以传输到每个调度的终端。

    ON-HAND REVERSE-LINK PILOT TRANSMISSION
    10.
    发明申请
    ON-HAND REVERSE-LINK PILOT TRANSMISSION 有权
    ON-HAND REVERSE-LINK PILOT传输

    公开(公告)号:US20100238896A1

    公开(公告)日:2010-09-23

    申请号:US12721906

    申请日:2010-03-11

    IPC分类号: H04W72/04

    CPC分类号: H04W74/04 H04W74/002

    摘要: Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.

    摘要翻译: 飞行员根据需要在反向链路上传输,用于前向链路上的信道估计和数据传输。 基站在反向链路上选择至少一个用于按需导频发送的终端。 每个选择的终端是用于在前向链路上接收数据传输的候选者。 基站为每个选择的终端分配时间频率分配,其可以用于宽带导频,窄带导频或某种其他类型的导频。 基站从每个所选终端接收并处理按需导频传输,并根据接收到的导频传输导出终端的信道估计。 基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。 基站还可以基于其信道估计来处理数据(例如,执行波束成形或本征导向)以传输到每个调度的终端。