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公开(公告)号：US07519044B1
公开(公告)日：2009-04-14
申请号：US09503401
申请日：2000-02-14
IPC分类号： H04J3/24
CPC分类号： H04B7/2656 , H04B7/18584 , H04B7/264 , H04W36/18 , H04W48/12 , H04W52/0216 , H04W52/0245 , H04W72/0406 , H04W72/1278 , H04W76/27 , Y02D70/1222 , Y02D70/446 , Y02D70/449
摘要： A channel structure for use in communication systems. Two sets of physical channels, one for the forward link and another for the reverse link, are utilized to facilitate communication of a variety of logical channels. The physical channels comprise data and control channels. In the exemplary embodiment, the data channels comprise fundamental channels which are used to transmit voice traffic, data traffic, high speed data, and other overhead information and supplemental channels which are used to transmit high speed data. The fundamental channels can be released when the remote stations are idle to more fully utilized the available capacity. The control channels are used to transmit paging and control messages and scheduling information.
摘要翻译： 用于通信系统的通道结构。 利用两组物理信道，一个用于前向链路，另一个用于反向链路，以促进各种逻辑信道的通信。 物理信道包括数据和控制信道。 在示例性实施例中，数据信道包括用于传输语音业务，数据业务，高速数据以及用于发送高速数据的其他开销信息和补充信道的基本信道。 当远程站空闲以便更充分地利用可用容量时，可以释放基本信道。 控制信道用于发送寻呼和控制消息和调度信息。
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公开(公告)号：US20090304024A1
公开(公告)日：2009-12-10
申请号：US12424019
申请日：2009-04-15
IPC分类号： H04L29/02
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.
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公开(公告)号：US08995417B2
公开(公告)日：2015-03-31
申请号：US12424030
申请日：2009-04-15
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。 在另一个示例性实施例中，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：US5991284A
公开(公告)日：1999-11-23
申请号：US800734
申请日：1997-02-13
申请人： Serge Willenegger , Yu-Chen Jou
发明人： Serge Willenegger , Yu-Chen Jou
IPC分类号： H04B7/26 , H04B7/005 , H04W52/00 , H04W52/08 , H04W52/28 , H04W52/42 , H04B7/216 , H04J13/02
CPC分类号： H04W52/288 , H04W52/08 , H04W52/42
摘要： Independently controlling the transmitted power of each subchannel by a subchannel control loop is described. A transmitting station generates a channel made up of a sum of subchannels wherein each subchannel or group of subchannels is amplified with a unique gain value that is varied in accordance with subchannel power control messages from the receiving station. The receiving station generates each subchannel power control message subsequent to monitoring and calculating metrics based on that received subchannel.
摘要翻译： 描述了通过子信道控制环独立地控制每个子信道的发射功率。 发射台产生由子信道之和构成的信道，其中每个子信道或子信道组被放大，该唯一增益值根据来自接收站的子信道功率控制消息而变化。 接收站在基于接收的子信道监视和计算度量之后生成每个子信道功率控制消息。
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