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1. 发明授权

US08630602B2 Pilot interference cancellation 有权
标题翻译：导频干扰消除
公开(公告)号：US08630602B2
公开(公告)日：2014-01-14
申请号：US12484572
申请日：2009-06-15
申请人： Rashid Ahmed A. Attar , Yu-Cheun Jou , Peter J. Black , Jun Ma
发明人： Rashid Ahmed A. Attar , Yu-Cheun Jou , Peter J. Black , Jun Ma
IPC分类号： H04B1/10
CPC分类号： H04B1/7107 , H04B1/71075 , H04B2201/70701 , H04L25/0224 , H04W52/12
摘要： Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.
摘要翻译：通信接收机中广义导频干扰消除技术。在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。

2. 发明申请

US20090303976A1 INCREASING CAPACITY IN WIRELESS COMMUNICATION 有权
标题翻译：在无线通信中增加能力
公开(公告)号：US20090303976A1
公开(公告)日：2009-12-10
申请号：US12424030
申请日：2009-04-15
申请人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
发明人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
IPC分类号： H04B7/216
CPC分类号： H04W52/44 , H04B2201/709709 , H04L1/0002 , H04L1/0025 , H04L1/0027 , H04L1/0029 , H04L1/0045 , H04L1/1607 , H04L1/1854 , H04L1/1887 , H04L2001/0092 , H04W52/58
摘要： Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.
摘要翻译：提高无线通信系统容量的技术。在一方面，提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。然而，对于由例如声码器指定为“关键”的某些设备进行了规定。接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧，包括仅响应于非空速率帧来更新外部环路功率控制。提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。在另一方面，提供了通过无线通信链路的信号传输的提前终止。在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收（RL），可能在帧的所有PCG之前都被接收到FL。针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。在另一示例性实施例中，还提供了用于反向链路提前终止的技术。

3. 发明授权

US09014152B2 Increasing capacity in wireless communications 有权
标题翻译：增加无线通信的容量
公开(公告)号：US09014152B2
公开(公告)日：2015-04-21
申请号：US12424050
申请日：2009-04-15
申请人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
发明人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
IPC分类号： H04J3/00 , H04L12/43 , H04J3/24 , H04W52/44 , H04L1/16 , H04W52/58 , H04L1/00
CPC分类号： H04W52/44 , H04B2201/709709 , H04L1/0002 , H04L1/0025 , H04L1/0027 , H04L1/0029 , H04L1/0045 , H04L1/1607 , H04L1/1854 , H04L1/1887 , H04L2001/0092 , H04W52/58
摘要： Techniques to increase capacity in a wireless communications system. Systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly. Techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received.
摘要翻译：提高无线通信系统容量的技术。提供了在通信系统中发送的最小速率帧的系统性非传输或“消隐”。在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。接收机检测到零速率或非零速率传输的存在，并相应地处理接收到的帧。提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的技术。在另一方面，提供了通过无线通信链路的信号传输的提前终止。在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收（RL），可能在所有PCG的帧被接收之前。

4. 发明申请

US20090303968A1 INCREASING CAPACITY IN WIRELESS COMMUNICATIONS 有权
标题翻译：在无线通信中增加能力
公开(公告)号：US20090303968A1
公开(公告)日：2009-12-10
申请号：US12424050
申请日：2009-04-15
申请人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
发明人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
IPC分类号： H04W8/00 , H04J3/00
CPC分类号： H04W52/44 , H04B2201/709709 , H04L1/0002 , H04L1/0025 , H04L1/0027 , H04L1/0029 , H04L1/0045 , H04L1/1607 , H04L1/1854 , H04L1/1887 , H04L2001/0092 , H04W52/58
摘要： Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.
摘要翻译：提高无线通信系统容量的技术。在一方面，提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。然而，对于由例如声码器指定为“关键”的某些设备进行了规定。接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧，包括仅响应于非空速率帧来更新外部环路功率控制。提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。在另一方面，提供了通过无线通信链路的信号传输的提前终止。在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收（RL），可能在帧的所有PCG之前都被接收到FL。针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。在另一示例性实施例中，还提供了用于反向链路提前终止的技术。

5. 发明授权

US09408165B2 Increasing capacity in wireless communications 有权
标题翻译：增加无线通信的容量
公开(公告)号：US09408165B2
公开(公告)日：2016-08-02
申请号：US12424019
申请日：2009-04-15
申请人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
发明人： Yu-Cheun Jou , Peter J. Black , Rashid Ahmed A. Attar
IPC分类号： H04L12/26 , H04W52/44 , H04L1/18 , H04W52/58 , H04L1/16 , H04L1/00
CPC分类号： H04W52/44 , H04B2201/709709 , H04L1/0002 , H04L1/0025 , H04L1/0027 , H04L1/0029 , H04L1/0045 , H04L1/1607 , H04L1/1854 , H04L1/1887 , H04L2001/0092 , H04W52/58
摘要： Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.
摘要翻译：提高无线通信系统容量的技术。在一方面，提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。然而，对于由例如声码器指定为“关键”的某些设备进行了规定。接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧，包括仅响应于非空速率帧来更新外部环路功率控制。提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。在另一方面，提供了通过无线通信链路的信号传输的提前终止。在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收（RL），可能在帧的所有PCG之前都被接收到FL。针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。在另一示例性实施例中，还提供了用于反向链路提前终止的技术。

6. 发明授权

US08611305B2 Interference cancellation for wireless communications 有权
公开(公告)号：US08611305B2
公开(公告)日：2013-12-17
申请号：US12564607
申请日：2009-09-22
申请人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
发明人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
IPC分类号： H04W36/14
CPC分类号： H04W52/54 , H04B1/7107 , H04B1/71072 , H04L1/0048 , H04L1/0052 , H04L25/03006 , H04W36/18 , H04W52/08 , H04W52/12 , H04W52/362 , H04W52/40
摘要： Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.

7. 发明授权

US08594252B2 Interference cancellation for wireless communications 有权
公开(公告)号：US08594252B2
公开(公告)日：2013-11-26
申请号：US12564633
申请日：2009-09-22
申请人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
发明人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
IPC分类号： H04L1/00 , H04L27/28
CPC分类号： H04L25/0224 , H04B1/7107 , H04B2201/70701 , H04L25/0204 , H04L25/0228 , H04W52/36 , H04W52/48
摘要： Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.

8. 发明申请

US20100142479A1 INTERFERENCE CANCELLATION FOR WIRELESS COMMUNICATIONS 有权
公开(公告)号：US20100142479A1
公开(公告)日：2010-06-10
申请号：US12564607
申请日：2009-09-22
申请人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
发明人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
IPC分类号： H04W36/00
CPC分类号： H04W52/54 , H04B1/7107 , H04B1/71072 , H04L1/0048 , H04L1/0052 , H04L25/03006 , H04W36/18 , H04W52/08 , H04W52/12 , H04W52/362 , H04W52/40
摘要： Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.

9. 发明申请

US20110085520A1 METHODS AND APPARATUS FOR INTERFERENCE CANCELLATION 有权
标题翻译：干扰消除的方法和装置
公开(公告)号：US20110085520A1
公开(公告)日：2011-04-14
申请号：US12614436
申请日：2009-11-08
申请人： Yu-Cheun Jou , Rashid A. Attar , Peter J. Black
发明人： Yu-Cheun Jou , Rashid A. Attar , Peter J. Black
IPC分类号： H04B7/216 , H04B15/00
CPC分类号： H04B1/7107 , H04B1/10
摘要： Disclosed are methods and apparatus for interference cancellation in a wireless communication system. In particular, the disclosed methods and apparatus provide for interference cancellation in a wireless device, including extending linear interference cancellation techniques, such as quasi-linear interference cancellation (QLIC), in the wireless device to a first orthogonal set, which may be a first quasi orthogonal function (QOF) set for a cdma2000 system to cancel interference from that set upon another desired QOF set. QLIC may also be extended to cancellation of signals from non-intended base stations as well. Accordingly, the present methods and apparatus afford reduced interference through QLIC by canceling signals due to either undesired QOF sets or non-intended base stations, which in turn results in an increase in forward link capacity.
摘要翻译：公开了一种用于无线通信系统中的干扰消除的方法和装置。具体地，所公开的方法和装置提供无线设备中的干扰消除，包括将无线设备中的线性干扰消除技术（诸如准线性干扰消除（QLIC））扩展到第一正交集合，其可以是第一正交集合为cdma2000系统设置的准正交函数（QOF），以消除来自该组的另一个所需QOF集的干扰。也可以将QLIC扩展到从非预定基站消除信号。因此，本方法和装置通过消除由于不期望的QOF组或非预期基站导致的信号，通过QLIC降低了干扰，这又导致前向链路容量的增加。

10. 发明申请

US20100061496A1 INTERFERENCE CANCELLATION FOR WIRELESS COMMUNICATIONS 有权
标题翻译：干扰消除无线通信
公开(公告)号：US20100061496A1
公开(公告)日：2010-03-11
申请号：US12564633
申请日：2009-09-22
申请人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
发明人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
IPC分类号： H04B1/10
CPC分类号： H04L25/0224 , H04B1/7107 , H04B2201/70701 , H04L25/0204 , H04L25/0228 , H04W52/36 , H04W52/48
摘要： Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.
摘要翻译：使用干扰消除（IC）来提高无线通信系统容量的技术。在早期的解码和IC方面，可以在从基站接收的整个帧之前对从用户发送到基站的帧进行解码。帧的剩余部分然后可以在其接收之前在基站重新构建，并且从接收信号中取消，以减少对从其他用户接收到的帧的干扰。在用于早期解码和IC的功率控制方面，本地基站的功率控制目标电平可以响应成功地早期解码帧来调整，而不影响整个外环功率控制操作。其他方面包括用于利用其他用户信号的IC来提高对给定用户的帧进行解码的概率的后期解码技术，以及使用信道重新估计的业务信道解调技术。

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