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公开(公告)号：US09686048B2
公开(公告)日：2017-06-20
申请号：US13009713
申请日：2011-01-19
IPC分类号： H04L1/18
CPC分类号： H04L1/1854 , H04L1/1887 , H04L1/189
摘要： Disclosed are examples in which the acknowledgement channel is used for retransmitting a frame received with error. A receiver is configured to transmit an acknowledgment for a frame when the frame is decoded following receipt of the last Pilot Control Group (PCG) of the same frame. The transmitter is configured to receive the acknowledgment of an earlier frame during a subsequent frame, and not to retransmit the earlier frame. The two frames may be adjacent. During connection setup negotiation, the system can determine the values of ack_mask1 defining allowed times for the receiver to acknowledge successful decoding of the subsequent frame, and ack_mask2 defining allowed times for the receiver to acknowledge successful decoding of the earlier frame. The two mask values provide non-overlapping allowed times, so the receiver can acknowledge within the subsequent frame (1) successful decoding of the earlier frame, and (2) successful decoding of the subsequent frame.
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公开(公告)号：US20110243067A1
公开(公告)日：2011-10-06
申请号：US13009713
申请日：2011-01-19
IPC分类号： H04W40/00
CPC分类号： H04L1/1854 , H04L1/1887 , H04L1/189
摘要： Disclosed are examples in which the acknowledgement channel is used for retransmitting a frame received with error. A receiver is configured to transmit an acknowledgment for a frame when the frame is decoded following receipt of the last Pilot Control Group (PCG) of the same frame. The transmitter is configured to receive the acknowledgment of an earlier frame during a subsequent frame, and not to retransmit the earlier frame. The two frames may be adjacent. During connection setup negotiation, the system can determine the values of ack_mask1 defining allowed times for the receiver to acknowledge successful decoding of the subsequent frame, and ack_mask2 defining allowed times for the receiver to acknowledge successful decoding of the earlier frame. The two mask values provide non-overlapping allowed times, so the receiver can acknowledge within the subsequent frame (1) successful decoding of the earlier frame, and (2) successful decoding of the subsequent frame.
摘要翻译： 公开了使用确认信道重传发送错误帧的示例。 接收机被配置为当在接收到相同帧的最后一个导频控制组（PCG）之后解码帧时，发送对帧的确认。 发射机被配置为在后续帧期间接收较早帧的确认，而不是重传较早的帧。 两个框架可以相邻。 在连接建立协商期间，系统可以确定确定接收机允许后续帧的成功解码的允许时间的ack_mask1的值，以及ack_mask2定义接收机允许对较早帧的成功解码的允许时间。 两个屏蔽值提供不重叠的允许时间，因此接收机可以在随后的帧（1）中对先前帧的成功解码进行确认，以及（2）后续帧的成功解码。
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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
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。
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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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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.
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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
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.
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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.
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公开(公告)号：US08854944B2
公开(公告)日：2014-10-07
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： H04B1/10 , H04B1/7107
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。
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公开(公告)号：US08743909B2
公开(公告)日：2014-06-03
申请号：US12389211
申请日：2009-02-19
IPC分类号： H04J3/18
CPC分类号： H04L1/1671 , H04L1/0025 , H04L1/1854 , H04W28/08 , H04W52/12 , H04W52/44 , 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。
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公开(公告)号：US08416725B2
公开(公告)日：2013-04-09
申请号：US12703144
申请日：2010-02-09
申请人： Yu-Cheun Jou , Rashid Attar , Mark Wallace , Qiang Wu , Jun Ma
发明人： Yu-Cheun Jou , Rashid Attar , Mark Wallace , Qiang Wu , Jun Ma
IPC分类号： G08C17/00
CPC分类号： H04W52/0235 , H04W52/44 , H04W52/54 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/25
摘要： An apparatus and method for transmit power savings comprising determining a rate of a previous frame; determining if a current frame is an ALWAYS-ON frame, wherein the current frame temporally succeeds the previous frame; and either ignoring every other reverse link power control (RLPC) bits received on a forward power control subchannel (F-PCSCH) or applying every RLPC bits received on the F-PCSCH. In one aspect, the apparatus and method for transmit power savings comprising using a rate determination algorithm (RDA) to determine a rate of a previous frame; detecting a pilot gating pattern at the end of the previous frame; comparing the rate of the previous frame to a threshold; determining if a current frame is an ALWAYS-ON frame; and declaring the current frame to be a 0 bps frame and puncturing the F-PCSCH to a predetermined frequency.
摘要翻译： 一种用于发射功率节省的装置和方法，包括：确定先前帧的速率; 确定当前帧是否是一个ALWAYS-ON帧，其中当前帧在时间上成功接收前一帧; 并且忽略在正向功率控制子信道（F-PCSCH）上接收的每个其他反向链路功率控制（RLPC）比特，或者应用在F-PCSCH上接收的每个RLPC比特。 一方面，用于传输功率节省的装置和方法包括使用速率确定算法（RDA）来确定先前帧的速率; 在前一帧结束时检测导频门控模式; 将前一帧的速率与阈值进行比较; 确定当前帧是否是始发帧; 并且将当前帧声明为0bps帧并将F-PCSCH打孔到预定频率。
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