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1. 发明授权

US07457263B2 Apparatus and method for channel request in a wireless communication system 有权
标题翻译：无线通信系统中信道请求的装置和方法
公开(公告)号：US07457263B2
公开(公告)日：2008-11-25
申请号：US09999651
申请日：2001-10-30
申请人： Johnny D. Shepherd
发明人： Johnny D. Shepherd
IPC分类号： H04Q7/00 , H04Q7/20 , H04J3/16
CPC分类号： H04W88/085 , H04W72/04 , H04W72/0413
摘要： Apparatus and Method for Channel Request in a Wireless Communication System. The present invention provides a method to request channels in a wireless communication system in order to efficiently allocate channel resources by using channel function information about each transceiver. A method is provided in a wireless communication system which includes a communication link having a plurality of channels and a plurality of radio heads each having transceivers for connecting to mobile terminals. The method comprises defining a channel function for a transceiver of one of the radio heads, determining whether the transceiver requires a dedicated channel for the channel function, and, if the transceiver requires the dedicated channel for the channel function, requesting a channel for the transceiver. In another embodiment, the method further comprises determining if a channel on the communication link is available for the channel function, and, if a channel is available for the transceiver, assigning the channel to the transceiver.
摘要翻译：无线通信系统中信道请求的装置和方法。本发明提供一种在无线通信系统中请求信道的方法，以便通过使用关于每个收发信机的信道功能信息来有效地分配信道资源。在包括具有多个信道的通信链路和各自具有用于连接到移动终端的收发器的多个无线电头的无线通信系统中提供了一种方法。该方法包括为无线电头之一的收发信机定义信道功能，确定收发机是否需要用于信道功能的专用信道，以及如果收发机需要用于信道功能的专用信道，则请求收发信机的信道。在另一个实施例中，该方法还包括确定通信链路上的信道是否可用于信道功能，以及如果信道可用于收发信机，则将信道分配给收发信机。

2. 发明授权

US06804540B1 Remote band-pass filter in a distributed antenna system 有权
标题翻译：分布式天线系统中的远程带通滤波器
公开(公告)号：US06804540B1
公开(公告)日：2004-10-12
申请号：US09630789
申请日：2000-08-02
申请人： Johnny D. Shepherd , Ossi I. Grohn
发明人： Johnny D. Shepherd , Ossi I. Grohn
IPC分类号： H04M100
CPC分类号： H04B7/0602
摘要： A distributed antenna system in a communication system includes a programmable band pass filter at each antenna within the distributed system. Control information from a processor associated with the base station may instruct the band pass filter as to on which channels a particular antenna should transmit. In this manner, channel reuse may be promoted and channels can be dynamically reassigned during periods of peak usage.
摘要翻译：通信系统中的分布式天线系统包括在分布式系统内的每个天线处的可编程带通滤波器。来自与基站相关联的处理器的控制信息可以指示带通滤波器关于特定天线应在哪些信道上传输。以这种方式，可以促进信道重用，并且可以在峰值使用期间动态地重新分配信道。

3. 发明授权

US06788961B2 Primary control signal bus selection for radio heads based on propagation delay 有权
标题翻译：基于传播延迟的无线电头的主控信号总线选择
公开(公告)号：US06788961B2
公开(公告)日：2004-09-07
申请号：US09963750
申请日：2001-09-26
申请人： Joseph A. Repice , Johnny D. Shepherd
发明人： Joseph A. Repice , Johnny D. Shepherd
IPC分类号： H04B138
CPC分类号： H04W92/20 , H04W88/085
摘要： The selection of the primary control signal bus to use for a given radio head is based on propagation delay to the relevant radio head. A plurality of radio heads are cascaded in a chain with buffered error correction therebetween. At least first and second control interfaces connect to the chain and supply control information thereto via respective control signal busses, which may be virtual busses. The propagation delay from a first control interface to a first radio head over a first bus is determined. Likewise, the propagation delay from a second control interface to the first radio head over a second bus is determined. Thereafter, the radio head determines which control signal bus to select as its primary control signal bus based on the respective propagation delays between the first radio head and the first and second control interfaces.
摘要翻译：用于给定无线电头的主控制信号总线的选择是基于到相关无线电头的传播延迟。多个无线电头级联在链中，其间具有缓冲的纠错。至少第一和第二控制接口连接到链路，并通过可以是虚拟总线的各个控制信号总线向其提供控制信息。确定通过第一总线从第一控制接口到第一无线电头的传播延迟。同样地，确定了通过第二总线从第二控制接口到第一无线电头的传播延迟。此后，无线电头基于第一无线电头与第一和第二控制接口之间的相应传播延迟来确定要选择哪个控制信号总线作为其主控信号总线。

4. 发明授权

US06950414B1 Cable carrying communications data and timing data to radio heads 有权
标题翻译：电缆将通信数据和定时数据传送到无线电头
公开(公告)号：US06950414B1
公开(公告)日：2005-09-27
申请号：US09690258
申请日：2000-10-17
申请人： Ossi I. Grohn , Johnny D. Shepherd
发明人： Ossi I. Grohn , Johnny D. Shepherd
IPC分类号： H04B7/005 , H04J3/06 , H04L7/00 , H04Q7/00
CPC分类号： H04J3/0685 , H04L7/0008
摘要： A method and apparatus for providing timing information to radio heads in a wireless communications system. One or more radio heads are connected to a central unit by a respective cable. This cable includes at least two sets of conductors. The first set carries communication data between the central unit and the radio head. This communication data may be user data, such as voice, data, or fax data, and optionally control data. This communication data is transferred between the radio head and the central unit using an asynchronous transmit method. Due to its variable timing of successful receipt, it may be difficult to send highly accurate timing data via asynchronous transmit methods. Instead, a synchronous transmit method may be advantageously employed to send timing data in the present invention. The timing data is sent on the second set of conductors of the same cable using a synchronous transmit method. Thus, each cable of the present invention carries both asynchronous transmissions and synchronous transmissions. The cable may advantageously be a portion of an existing LAN cable plant, and the asynchronous transmit method may be according to an Ethernet protocol. One or more radio heads may be supplied with timing data in this fashion. The timing of radio frequency transmissions from those radio heads may then be based on the supplied timing information, for instance to coordinate the transmissions from multiple radio heads so as to be simultaneous.
摘要翻译：一种用于向无线通信系统中的无线电头提供定时信息的方法和装置。一个或多个无线电头通过相应的电缆连接到中央单元。该电缆包括至少两组导体。第一组在中央单元和无线电头之间传送通信数据。该通信数据可以是诸如语音，数据或传真数据的用户数据，以及可选地控制数据。该通信数据使用异步发送方法在无线电头和中央单元之间传送。由于其成功接收的可变时序，可能难以通过异步发送方式发送高精度的定时数据。相反，可以有利地采用同步发送方法来发送本发明中的定时数据。定时数据使用同步传输方法在相同电缆的第二组导体上发送。因此，本发明的每个电缆同时承载异步传输和同步传输。电缆可以有利地是现有LAN电缆设备的一部分，并且异步传输方法可以根据以太网协议。可以以这种方式向一个或多个无线电头提供定时数据。然后，来自这些无线电头的无线电频率传输的定时可以基于所提供的定时信息，例如，以协调来自多个无线电头的传输以同时进行。

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