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41. 发明授权

US09686048B2 Delayed automatic repeat request (ARQ) acknowledgment 有权
公开(公告)号：US09686048B2
公开(公告)日：2017-06-20
申请号：US13009713
申请日：2011-01-19
申请人： Vikram Gupta , Rashid A. Attar , Yu-Cheun Jou , Ravindra Manohar Patwardhan
发明人： Vikram Gupta , Rashid A. Attar , Yu-Cheun Jou , Ravindra Manohar Patwardhan
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.

42. 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.

43. 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.

44. 发明授权

US07881256B2 Mobile station supervision of the forward dedicated control channel when in the discontinuous transmission mode 有权
标题翻译：在不连续传输模式下，前台专用控制通道的移动台监控
公开(公告)号：US07881256B2
公开(公告)日：2011-02-01
申请号：US10162514
申请日：2002-06-03
申请人： Yu-Cheun Jou , Edward G. Tiedemann, Jr.
发明人： Yu-Cheun Jou , Edward G. Tiedemann, Jr.
IPC分类号： H04W4/00 , H04B7/216 , H04B7/004
CPC分类号： H04L1/20 , H01L23/53295 , H01L24/02 , H01L2924/01004 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01019 , H01L2924/01027 , H01L2924/01033 , H01L2924/01067 , H01L2924/01074 , H01L2924/01075 , H04B17/26 , H04B17/318 , H04B17/327 , H04B17/336 , H04L1/201 , H04W36/08 , H04W48/20 , H04W52/0216 , H04W52/0245 , H04W72/08 , H04W88/02 , Y02D70/25
摘要： A method and apparatus for supervising a dedicated control channel when in the discontinuous transmission mode. The mobile station monitors the frames it receives from a base station and maintains a counter of bad, good, and empty frames, referred to as CNT1, CNT2, CNT3, respectively. If a received frame is a good frame, CNT1 is reset to zero and CNT2 is incremented. If the received frame is a bad frame, CNT1 is incremented and CNT2 is reset to zero. If the received frame is an empty frame, CNT1 and CNT2 are unchanged but CNT3 is incremented. A transmitter coupled to the mobile station is enabled or disabled depending upon which, if any, of the CNTs reaches or exceeds a designated threshold value. In another embodiment, an average aggregated value reflecting the strength of the pilot signals in an active set, measured at the mobile station, is used for comparison to a threshold.
摘要翻译：一种用于在不连续传输模式下监视专用控制信道的方法和装置。移动台监视从基站接收到的帧，并分别维护称为CNT1，CNT2，CNT3的不良，良好和空的帧的计数器。如果接收到的帧是一个好的帧，CNT1被重置为零并且CNT2被递增。如果接收到的帧是坏帧，则CNT1递增，CNT2复位为零。如果接收到的帧是空帧，则CNT1和CNT2不变，但CNT3增加。取决于CNT的哪些（如果有的话）达到或超过指定的阈值，耦合到移动台的发射机被启用或禁用。在另一个实施例中，反映在移动站测量的活动集中的导频信号的强度的平均聚合值用于与阈值进行比较。

45. 发明授权

US07769079B2 Method and apparatus for controlling gain level of a communication channel in a CDMA communication system 有权
标题翻译：用于控制CDMA通信系统中的通信信道的增益水平的方法和装置
公开(公告)号：US07769079B2
公开(公告)日：2010-08-03
申请号：US11544233
申请日：2006-10-05
申请人： Yu-Cheun Jou
发明人： Yu-Cheun Jou
IPC分类号： H04B1/00
CPC分类号： H04W52/267 , H04L1/0002 , H04W52/24 , H04W52/282
摘要： In a code division multiple access communication system (100), a method and an accompanying apparatus provide for an efficient control of a gain level of a communication channel at various mobility levels. A rate of change of a carrier to interference ratio (C/I) of a communication channel received at a receiver (400) is determined. The gain level of the communication channel may be based on the rate of change of the C/I of the communication channel. A mobility level of the communication channel may be compared to a low mobility threshold corresponding to a low mobility level. If the mobility level meets the low mobility threshold, the gain level of the communication channel may be based on the rate of change of the C/I of the communication channel.
摘要翻译：在码分多址通信系统（100）中，一种方法和伴随装置提供了在各种移动性级别对通信信道的增益级别的有效控制。确定在接收机（400）处接收的通信信道的载波与干扰比（C / I）的变化率。通信信道的增益电平可以基于通信信道的C / I的变化率。可以将通信信道的移动性水平与对应于低移动性水平的低移动性阈值进行比较。如果移动性水平满足低移动性阈值，则通信信道的增益水平可以基于通信信道的C / I的变化率。

46. 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.

47. 发明申请

US20100103904A1 ENHANCED FORWARD LINK TRANSMISSION 有权
标题翻译：增强的前向链路传输
公开(公告)号：US20100103904A1
公开(公告)日：2010-04-29
申请号：US12606313
申请日：2009-10-27
申请人： Yu-Cheun Jou , Rashid Ahmed Akbar Attar , Jun Ma
发明人： Yu-Cheun Jou , Rashid Ahmed Akbar Attar , Jun Ma
IPC分类号： H04W36/00
CPC分类号： H04W52/54 , H04J13/0003 , H04J13/0048 , H04W36/08 , H04W36/18 , H04W52/40
摘要： A method for processing forward link channel signals generated by a CDMA base station includes time sharing by several mobile stations of spreading codes, which are orthogonal codes such as Walsh Code, and code-combining soft/softer handoff across sectors in the mobile station active set to increase dimensions on the CDMA2000 and WCDMA downlink while minimizing intra-sector interference. Since different parts of a packet or frame are transmitted to the user by the different base stations in the active set, earlier decoding and therefore early packet termination is enabled.
摘要翻译：用于处理由CDMA基站产生的前向链路信道信号的方法包括几个移动站对诸如沃尔什码之类的正交码以及移动台活动组中的扇区之间的代码组合软/更软切换的扩展码的时间共享以增加CDMA2000和WCDMA下行链路上的尺寸，同时最小化扇区内干扰。由于分组或帧的不同部分由活动集中的不同基站发送给用户，所以早期解码并因此启用早期分组终止。

48. 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。

49. 发明申请

US20070165563A1 METHOD AND APPARATUS FOR HIGH RATE CHANNEL ACCESS CONTROL 有权
标题翻译：用于高速通道访问控制的方法和装置
公开(公告)号：US20070165563A1
公开(公告)日：2007-07-19
申请号：US11695840
申请日：2007-04-03
申请人： Edward Tiedemann , Yu-Cheun Jou , Yu-Chuan Lin
发明人： Edward Tiedemann , Yu-Cheun Jou , Yu-Chuan Lin
IPC分类号： H04Q7/00
CPC分类号： H04W28/02 , H04W24/00 , H04W28/22 , H04W74/00
摘要： Access to a variable rate multiple access system is controlled based upon a current loading. The current loading level is used to determine a transmission rate set point. The transmission rate set point may include a maximum transmission rate and a transmission probability. The transmission rate set point is passed to the remote unit which may access the system. A remote unit with data to send determines a desired transmission data rate. If the desire transmission data rate is equal to or greater than the maximum transmission data rate, the remote unit transmits at the maximum transmission data rate with a probability equal to the transmission probability.
摘要翻译：基于当前负载来控制对可变速率多址系统的访问。当前的负载水平用于确定传输速率设定点。传输速率设定点可以包括最大传输速率和传输概率。传输速率设定点传递给可能访问系统的远程单元。具有要发送的数据的远程单元确定期望的传输数据速率。如果期望传输数据速率等于或大于最大传输数据速率，则远程单元以等于传输概率的概率以最大传输数据速率发送。

50. 发明申请

US20070025427A1 Method and apparatus for controlling gain level of a communication channel in a CDMA communication system 有权
标题翻译：用于控制CDMA通信系统中的通信信道的增益水平的方法和装置
公开(公告)号：US20070025427A1
公开(公告)日：2007-02-01
申请号：US11544233
申请日：2006-10-05
申请人： Yu-Cheun Jou
发明人： Yu-Cheun Jou
IPC分类号： H04B1/707
CPC分类号： H04W52/267 , H04L1/0002 , H04W52/24 , H04W52/282
摘要： In a code division multiple access communication system (100), a method and an accompanying apparatus provide for an efficient control of a gain level of a communication channel at various mobility levels. A rate of change of a carrier to interference ratio (C/I) of a communication channel received at a receiver (400) is determined. The gain level of the communication channel may be based on the rate of change of the C/I of the communication channel. A mobility level of the communication channel may be compared to a low mobility threshold corresponding to a low mobility level. If the mobility level meets the low mobility threshold, the gain level of the communication channel may be based on the rate of change of the C/I of the communication channel.
摘要翻译：在码分多址通信系统（100）中，一种方法和伴随装置提供了在各种移动性级别对通信信道的增益级别的有效控制。确定在接收机（400）处接收的通信信道的载波与干扰比（C / I）的变化率。通信信道的增益电平可以基于通信信道的C / I的变化率。可以将通信信道的移动性水平与对应于低移动性水平的低移动性阈值进行比较。如果移动性水平满足低移动性阈值，则通信信道的增益水平可以基于通信信道的C / I的变化率。

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