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公开(公告)号：US5396648A
公开(公告)日：1995-03-07
申请号：US74696
申请日：1993-06-08
CPC分类号： H04W72/044 , H04W72/0413
摘要： A method and apparatus whereby a communication unit (10) transmits a communication channel request and the nearest base site (12) makes the communication channel grant or allocation. A base site receives the channel request signal, measures the received signal strength (RSSI) level of the received signal, and if that level is above a threshold level, a communication channel is allocated to the requesting communication unit, thus establishing a communication link. If the channel request signal does not have an RSSI level above the threshold, the base site delays the grant of a communication channel for a period inversely proportional to the measured RSSI level to allow other base sites the opportunity to grant a communication channel to the requesting communication unit. If the base site determines that another base site has granted a communication channel to the requesting communication unit, the allocation process is stopped, and the base site continues scanning for channel request signals.
摘要翻译： 一种通信单元（10）发送通信信道请求并且最近的基站（12）进行通信信道授权或分配的方法和装置。 基站接收信道请求信号，测量接收信号的接收信号强度（RSSI）电平，如果该电平高于阈值电平，则通信信道被分配给请求通信单元，从而建立通信链路。 如果信道请求信号不具有高于阈值的RSSI电平，则基站将延迟通信信道的准许与所测量的RSSI电平成反比的周期，以允许其他基站有机会向通信信道授予通信信道 通讯单元 如果基站确定另一个基站已经向请求通信单元授予通信信道，则停止分配过程，并且基站继续扫描信道请求信号。
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公开(公告)号：US07428229B2
公开(公告)日：2008-09-23
申请号：US11024389
申请日：2004-12-28
IPC分类号： H04Q7/24
CPC分类号： H04L45/04 , H04L41/12 , H04W52/0216 , H04W60/00 , H04W72/12 , H04W84/18 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/22
摘要： Nodes (103a-d, 105, 107, 109a-c, 111a-c) in an ad hoc communication network are coordinated. The network includes the node (111b) and one or more neighbor nodes (103a-d, 105, 107, 109a-c, 111a,c). The node (111b) can sleep in a low duty cycle. Further, the node (111b) can awaken, responsive to a schedule; and register with a cluster head (101); listen for one or more neighbors, wherein the at least one neighbor can be active (103a-d, 105, 107) or idle (109a-c, 111a,c); and/or listen for one or more requests from the cluster head (101) or active neighbor(s) (103a-d, 105, 107). Responsive to the request(s), the idle node (111b) can become active on a communication link.
摘要翻译： 协调自组织通信网络中的节点（103a-d，105,107,109a-c，111a-c）。 网络包括节点（111b）和一个或多个相邻节点（103a-d，105,107,109a-c，111a，c）。 节点（111b）可以在低占空比中睡眠。 此外，响应于时间表，节点（111b）可以唤醒; 并向集群头（101）注册; 监听一个或多个邻居，其中所述至少一个邻居可以是活动的（103a-d，105,107）或空闲（109a-c，111a，c）; 和/或监听来自群集头（101）或活动邻居（103a-d，105,107）的一个或多个请求。 响应于该请求，空闲节点（111b）可以在通信链路上变为活动的。
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3.发明授权Method and apparatus for radio frequency bandwidth sharing among heterogeneous radio communication system 失效异构无线电通信系统之间射频带宽共享的方法和装置
公开(公告)号：US5428819A
公开(公告)日：1995-06-27
申请号：US53637
申请日：1993-04-27
CPC分类号： H04W16/14
摘要： An etiquette controller (112) in a transmitter (14) in a first radio frequency (RF) communications system (10) enables radio frequency communications in a frequency bandwidth shared with heterogeneous RF communication systems (15). The etiquette controller (112) monitors the first RF signals in an isochronous frequency channel in a sub-band of the shared frequency bandwidth to determine whether (124) a frequency channel is free or whether (130, 136) the frequency channel comprises a communication channel which is free. In addition, the etiquette controller (112) causes the RF transceiver (102) to transmit (148) a channel relinquishment signal, monitors (150) the isochronous frequency channel for a predetermined monitoring time, and determines (152) whether the isochronous frequency channel is then free for the channel access.
摘要翻译： 在第一射频（RF）通信系统（10）中的发射器（14）中的礼节控制器（112）实现与异质RF通信系统（15）共享的频率带宽中的射频通信。 礼仪控制器（112）监视共享频带宽度的子频带中的同步频道中的第一RF信号，以确定（124）频道是否空闲，或者（130,136）频道是否包括通信 频道是免费的。 此外，礼仪控制器（112）使得RF收发器（102）发送（148）信道放弃信号，在预定的监视时间内监视（150）同步频道，并且确定（152）等时频道 然后免费进行频道访问。
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4.发明授权Method and apparatus for broadcast in an ad hoc network with dynamic selection of relay nodes 有权在具有中继节点的动态选择的自组织网络中广播的方法和装置公开(公告)号：US07697450B2
公开(公告)日：2010-04-13
申请号：US11289833
申请日：2005-11-30
IPC分类号： H04L12/26
摘要： Techniques are provided for allowing a node (300) in an ad hoc network to deterministically decide whether to relay broadcast information to another node in the ad hoc network. The node (300) receives broadcast information and measures received signal strength (RSS) of the broadcast information. The node (300) may determine if the measured RSS is below a low threshold, and if so, can relay the broadcast information to neighbor nodes. Otherwise, the node (300) can also determine if the measured RSS is above a high threshold, and if not, wait for a waiting period before relaying the broadcast information to the neighbor nodes. The node (300) may dynamically adjust the low threshold by decreasing the low threshold as the number of neighbor nodes increases and may dynamically adjust the high threshold by increasing the high threshold as the number of neighbor nodes decreases.
摘要翻译： 提供了允许自组织网络中的节点（300）确定地决定是否将广播信息中继到自组织网络中的另一个节点的技术。 节点（300）接收广播信息并测量广播信息的接收信号强度（RSS）。 节点（300）可以确定测量的RSS是否低于低阈值，如果是，则可以将广播信息中继到相邻节点。 否则，节点（300）还可以确定测量的RSS是否高于高阈值，如果不是，则等待等待周期，然后再将广播信息中继到相邻节点。 节点（300）可以通过随着邻居节点数量的增加而减小低阈值来动态地调整低阈值，并且可以随着邻居节点数的增加而增加高阈值来动态地调整高阈值。
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5.发明授权公开(公告)号：US06556616B2
公开(公告)日：2003-04-29
申请号：US10015018
申请日：2001-12-11
申请人： Thomas V. D'Amico
发明人： Thomas V. D'Amico
IPC分类号： H04B1500
CPC分类号： H04L1/0061 , H04B1/713 , H04W68/00
摘要： A technique is used in a data terminal (110, 160) that encodes and decodes a data packet that is transmitted in a link of a frequency hopping system. During encoding, an information portion of the data packet is determined for transmission, a transmit redundancy check code is generated over the information portion and an identifier using a predetermined redundancy check code generator, and the data packet is generated to include the transmit redundancy check code and the information portion, but exclude the identifier. During decoding, the information portion and a received redundancy check code of the received data packet are determined, a calculated redundancy check code is generated over the information portion and the identifier, using the predetermined redundancy check code generator, and the information portion is rejected when the received redundancy check code does not match the calculated redundancy check code.
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公开(公告)号：US06219559B1
公开(公告)日：2001-04-17
申请号：US09579311
申请日：2000-05-25
IPC分类号： H04B700
摘要： A two-way communication system is used for performing dynamic channel control. The two-way communication system comprises a base transceiver (102) and a plurality of selective call transceivers (122). The base transceiver (102) includes a plurality of base stations (116) controlled by a controller (112). The base transceiver (102) transmits query signals to the selective call transceivers (122) to prompt communication. The selective call transceivers (122) measure the signal quality of signals transmitted by the two-way communication system and transmit in return signal quality measurement data to the base transceiver (102) for analysis. The base transceiver (102) dynamically adjusts the signal quality of signals to be received by the selective call transceivers (122) in order to substantially reduce the noise interference that the selective call transceivers (122) experience.
摘要翻译： 双向通信系统用于执行动态信道控制。 双向通信系统包括基站收发机（102）和多个选呼通信收发机（122）。 基地收发机（102）包括由控制器（112）控制的多个基站（116）。 基站收发信机（102）将查询信号发送到选呼通信收发器（122）以提示通信。 选择性呼叫收发机（122）测量由双向通信系统发送的信号的信号质量，并且将信号质量测量数据作为信号传送到基地收发信机（102）用于分析。 基站收发机（102）动态地调整要由选择性呼叫收发机（122）接收的信号的信号质量，以便基本上减少选择呼叫收发器（122）经历的噪声干扰。
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7.发明授权Method and apparatus for improving the reliability of communicating a message from a portable subscriber unit to a base receiver in a two-way radio messaging system 失效用于提高在双向无线电消息系统中将消息从便携式用户单元传送到基站接收机的可靠性的方法和装置
公开(公告)号：US5905945A
公开(公告)日：1999-05-18
申请号：US846766
申请日：1997-04-30
CPC分类号： H04L1/0009 , H04L1/08
摘要： A portable subscriber unit (104) monitors (602) a signal fading rate in an outbound channel from a base station (102), and transmits a message. The portable subscriber unit transmits (606) the message once on an inbound channel in response to the signal fading rate in the outbound channel being less than a predetermined value. The portable subscriber unit transmits (608) the message more than once in response to the signal fading rate in the outbound channel being greater than or equal to the predetermined value.
摘要翻译： 便携式用户单元（104）监视（602）来自基站（102）的出站信道中的信号衰落速率，并发送消息。 响应于出站信道中的信号衰落速率小于预定值，便携式用户单元在入站信道上发送（606）消息一次。 便携式用户单元响应于出站信道中的信号衰落速率大于或等于预定值，多次发送（608）该消息。
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公开(公告)号：US4168399A
公开(公告)日：1979-09-18
申请号：US903365
申请日：1978-05-05
申请人： Thomas V. D'Amico , Mark H. Rackin , Victor Jensen , Norman E. Schultz , John J. Cady , William J. Macko , Carl R. Steinbach , Nicholas Petrakos
发明人： Thomas V. D'Amico , Mark H. Rackin , Victor Jensen , Norman E. Schultz , John J. Cady , William J. Macko , Carl R. Steinbach , Nicholas Petrakos
CPC分类号： H04W88/188 , H03G3/3036
摘要： A base station encoder is connected to a decoder terminal and paging transmitter by means of a single voice-pair telephone line link. Automatic operations reduce operator fatigue and operating costs. Digital, tone-keyed gain controls automatically compensate for line losses. All dialing, including long distance and overseas calls, and station identification are done automatically.
摘要翻译： 基站编码器通过单个语音对电话线路链路连接到解码器终端和寻呼发射机。 自动操作可减少操作员疲劳和运行成本。 数字，音调键控增益控制自动补偿线路损耗。 所有拨号，包括长途电话和国外电话，以及电台识别都自动完成。
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9.发明授权公开(公告)号：US07079609B2
公开(公告)日：2006-07-18
申请号：US10631583
申请日：2003-07-31
摘要： A communication system is designed that reduces co-channel interference when heterogeneous users are sharing spectrum. The system design enables a plurality of pairs of users to communicate their channel utilization time periods by using the durations and start or stop times of certain transmissions to signal the start times and durations of later transmissions. Other system users using possibly different communications protocols and different modulation technologies can measure the durations of received transmissions and to infer channel usage based on these durations.
摘要翻译： 设计了一种通信系统，在异构用户共享频谱时减少同频干扰。 系统设计使得多对用户能够通过使用某些传输的持续时间和开始或停止时间来传达其信道利用时间周期，以表示后续传输的开始时间和持续时间。 使用可能不同的通信协议和不同调制技术的其他系统用户可以测量接收到的传输的持续时间并且基于这些持续时间推断信道使用。
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公开(公告)号：US5809430A
公开(公告)日：1998-09-15
申请号：US801034
申请日：1997-02-19
申请人： Thomas V. D'Amico
发明人： Thomas V. D'Amico
摘要： A personal communication system (100) having power control provided by a radio port control unit (122), provides for portable radio controlled optimum base station selection. Multiple base stations 102, 124, and 130 transmit channel signals including a code word which indicates the transmit power level of each transmission. A portable radio 120 measures the received signal strength (RSS) of each of the channel signals transmitted from the base stations and also receives the coded power levels of each transmission. The portable (120) then calculates an adjusted received signal strength (ARSS) value for different channels from different base stations. The portable (120) then compares the ARSS values to determine the optimum base station to communicate with for portable controlled handover, local registration, and link set up.
摘要翻译： 具有由无线端口控制单元（122）提供的功率控制的个人通信系统（100）提供便携式无线电控制的最佳基站选择。 多个基站102,124和130发送包括指示每个传输的发射功率电平的码字的信道信号。 便携式无线电装置120测量从基站发送的每个信道信号的接收信号强度（RSS），并且还接收每个传输的编码功率电平。 便携式（120）然后计算来自不同基站的不同信道的经调整的接收信号强度（ARSS）值。 便携式（120）然后比较ARSS值以确定与便携式可控切换，本地注册和链路建立通信的最佳基站。
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