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公开(公告)号：US06181685B2
公开(公告)日：2001-01-30
申请号：US09065314
申请日：1998-04-23
IPC分类号： H04B7216
CPC分类号： H04W52/247 , H04W4/06 , H04W52/146 , H04W84/08
摘要： A controller (120), in response to receiving a request for a group call (201) targeting a group (101), allocates at least one power adjustment channel to the group call (202) and sends identification of the at least one power adjustment channel to at least some of the subscriber units in the group (203). Using the at least one power adjustment channel, the controller also sends unique power adjustment information to each of the at least some subscriber units (204). Unique power adjustment channel access information is also sent to the subscriber units so that each subscriber unit can receive its own unique power adjustment information (503) and adjust its inbound transmission power (504) in response. In this manner, efficient reverse power control is provided for multiple subscriber units thereby facilitating group calls in CDMA systems.
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52.发明授权Method and apparatus for group calls in a wireless CDMA communication system 有权无线CDMA通信系统中用于组呼的方法和装置公开(公告)号：US06178166B1
公开(公告)日：2001-01-23
申请号：US09322649
申请日：1999-05-28
申请人： Timothy J. Wilson , Hua Xu
发明人： Timothy J. Wilson , Hua Xu
IPC分类号： H04B7216
摘要： The present invention provides a method and apparatus for group calls in wireless CDMA communication systems, addressing the need for reliable and efficient reverse power control in CDMA group calls. A communication infrastructure (108-110) upon receiving a group call request from a communication unit (e.g., 103), allocates a single voice channel (e.g., 120-121) in each cell that provides service to one or more communication units of the group (101). The communication infrastructure further allocates a reverse power control channel (e.g., 125-127) to each communication unit of the group. Thus, each communication unit of the group receives voice information for the group call via the voice channel in that communication unit's site or cell, and each communication unit receives inbound (i.e., reverse) power control information via the reverse power control channel allocated to that communication unit. In this manner, the present invention efficiently provides reverse power control information to multiple communication units and, therefore, facilitates the establishment of group calls in CDMA systems.
摘要翻译： 本发明提供了一种用于无线CDMA通信系统中的群组呼叫的方法和装置，解决了在CDMA群组呼叫中对可靠和有效的反向功率控制的需要。 通信基础设施（108-110）在从通信单元（例如，103）接收到群组呼叫请求时，在每个小区中分配单个话音信道（例如，120-121），该小区向 组（101）。 通信基础设施进一步向组中的每个通信单元分配反向功率控制信道（例如125-127）。 因此，该组的每个通信单元经由通信单元的站点或小区中的语音信道接收用于群组呼叫的语音信息，并且每个通信单元经由分配给该通信单元的站的反向功率控制信道来接收入站（即，反向）功率控制信息 通讯单元 以这种方式，本发明有效地向多个通信单元提供反向功率控制信息，因此有助于在CDMA系统中建立组呼。
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公开(公告)号：US5533673A
公开(公告)日：1996-07-09
申请号：US332547
申请日：1994-10-31
申请人： Timothy J. Wilson , Steven E. Jones
发明人： Timothy J. Wilson , Steven E. Jones
CPC分类号： B05B3/028 , B05B3/00 , B05B3/0409 , B05B3/06
摘要： A nozzle system for imparting compound motion, including an orbital component and a rotational component, to the discharged fluid. The nozzle system comprises a specially engineered shell surrounding a freely flexible hose of sufficient structural integrity to simultaneously exhibit two different motion characteristics to impart the compound motion to the discharged fluid. When fluid is delivered to the nozzle system, the hose moves orbitally; that is, the hose rides against the wall of the shell in a cork screwing manner. Simultaneously, the hose rotates or twists back and forth about its own axis relative to its fixed end. Both components of motion are imparted to the discharged fluid to enhance spray power and expanse.
摘要翻译： 一种用于将化合物运动（包括轨道部件和旋转部件）施加到排出流体的喷嘴系统。 喷嘴系统包括专门设计的壳体，其围绕具有足够结构完整性的自由柔性软管，以同时呈现两种不同的运动特性以将复合运动传递给排出的流体。 当流体输送到喷嘴系统时，软管轨道移动; 也就是说，软管以软木螺丝拧紧方式抵靠外壳的墙壁。 同时，软管围绕其自身的轴线相对于其固定端部来回旋转或扭曲。 将两种运动成分赋予排出的流体，以增强喷雾功率和膨胀。
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公开(公告)号：US5477550A
公开(公告)日：1995-12-19
申请号：US28902
申请日：1993-03-08
CPC分类号： H04L1/1809 , H04L1/1874
摘要： Within a transmitter (101), a quantity of data (201) to be transmitted is parsed into variable length, uniquely identified messages (202), which are in turn parsed into fixed-length, uniquely identified blocks (207-211). Messages are buffered and then transmitted to a receiver (103). Upon reception of a message-received communication by the transmitter (101) corresponding to a particular buffered message, that particular message is unbuffered. Upon reception of a message-partially-received communication by the transmitter (101) corresponding to a particular buffered message, those blocks corresponding to portions of the particular buffered message that were not adequately received (703) are retransmitted.
摘要翻译： 在发射机（101）内，要传输的数据量（201）被解析为可变长度唯一标识的消息（202），这些消息又被解析为固定长度唯一标识的块（207-211）。 消息被缓冲，然后被发送到接收机（103）。 在由与特定缓冲消息对应的发射机（101）接收到消息接收到的通信后，该特定消息是无缓冲的。 在发送器（101）接收到与特定缓冲消息对应的消息部分接收到的通信后，重发与未被充分接收的特定缓冲消息的部分对应的那些块（703）。
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55.发明授权
公开(公告)号：US5469465A
公开(公告)日：1995-11-21
申请号：US333409
申请日：1994-11-02
CPC分类号： H04L1/20 , H04B1/1027 , H04B17/20
摘要： A receiver may reduce the effects of distortion when determining signal usability in the following manner. Upon receiving a signal, the receiver separates a desired component, an undesired component, and a distortion component, wherein the desired component includes the signal that was originally transmitted and the undesired component includes interference and noise. Having isolated the distortion component, it can be mitigated such that the usability of the signal received can be determined based on a ratio between the desired and undesired components.
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公开(公告)号：US5271017A
公开(公告)日：1993-12-14
申请号：US722724
申请日：1991-06-27
申请人： Jay R. Krebs , Timothy J. Wilson
发明人： Jay R. Krebs , Timothy J. Wilson
CPC分类号： H04J3/1647 , H04W48/08 , H04W74/04 , H04W88/02 , H04W88/08
摘要： An improved protocol for a radio communications system (100) having a base station (103), radio units (101), an inbound channel (107) for conveying information from the radio units to the base station, an outbound channel (105) for conveying information from the base station to the radio units, a first unit of time is defined as a microslot (201, 203, 205), and a second unit of time is defined as a slot (207), the slot comprising an integral number of consecutive and contiguous microslots. The base station sends timing information to the radio units, and indicates to the radio units when the inbound channel is idle by, first, determining when a microslot time period has expired (303) and, when this occurs, then determining when a slot time period has expired (305). If a slot has expired, the base station then determines whether the inbound channel is idle. If the inbound channel is idle (307), the base station then sends (311) a first symbol to the radio units on the outbound channel, but if the inbound channel is busy, the base station sends (309) a second symbol to the radio units on the outbound channel. Otherwise, if a slot has not expired, the base station sends (313) a third symbol to the radio units on the outbound channel. In a four-level frequency shift keying (FSK) system, for instance, the first (idle) and second (busy) symbol may use a -3 and -3 relative FSK frequency offsets, and the third symbol may use either a +1 or -1 relative FSK frequency offset.
摘要翻译： 一种用于无线电通信系统（100）的改进协议，具有基站（103），无线电单元（101），用于将信息从无线电单元传送到基站的入站信道（107），出站信道（105），用于 将信息从基站传送到无线电单元，将第一时间单位定义为微时隙（201,203,205），将第二时间单位定义为时隙（207），所述时隙包括整数 的连续和连续的微插槽。 基站向无线单元发送定时信息，并且通过首先确定微时隙周期何时到期（303），向无线单元通知入站信道何时空闲，并且当发生这种情况时，确定时隙时间 期限已过期（305）。 如果时隙已经过期，则基站然后确定入站信道是否空闲。 如果入站信道空闲（307），则基站向出站信道上的无线单元发送（311）第一符号，但是如果入站信道忙，则基站向第 出站频道上的无线电单元。 否则，如果时隙尚未到期，则基站向出站信道上的无线单元发送（313）第三符号。 在四级频移键控（FSK）系统中，例如，第一（空闲）和第二（忙）符号可以使用-3和-3相对FSK频率偏移，并且第三符号可以使用+1 或-1相对FSK频率偏移。
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