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公开(公告)号：US5274841A
公开(公告)日：1993-12-28
申请号：US47038
申请日：1993-04-12
摘要： A method for communicating information bidirectionally between a wired network (1) and a wireless network. The wireless network is of the type that includes header stations (12) each having a communication cell (2) associated therewith and one or more mobile communication units (10) disposed within the communication cell. The method includes a first step of, during a first portion of a wireless communication cycle, transmitting information over an uplink wireless communication channel from one or more of the mobile communication units to the header station. A second step of the method, accomplished during a second portion of the wireless communication cycle, transmits information over a downlink wireless communication channel from the header station to one or more of the mobile communication units. The information transmitted downlink includes frames of data received by the header station from the wired network. The first portion may be accomplished in part or in total by a CSMA protocol where the mobile units contend for access to the uplink communication channel. In one embodiment the header station initiates the first portion by transmitting to the header stations information for scheduling the sequence of the uplink transmissions.
摘要翻译： 一种用于在有线网络（1）和无线网络之间双向通信信息的方法。 无线网络是包括具有与其相关联的通信小区（2）的头部站（12）和设置在通信小区内的一个或多个移动通信单元（10）的类型。 该方法包括第一步骤，在无线通信周期的第一部分期间，通过上行链路无线通信信道将信息从一个或多个移动通信单元传送到总站。 该方法的第二步是在无线通信周期的第二部分期间完成，通过下行链路无线通信信道将信息从报头站传送到一个或多个移动通信单元。 发送下行链路的信息包括由该终端站从有线网络接收的数据帧。 第一部分可以通过CSMA协议部分或全部来实现，其中移动单元竞争访问上行链路通信信道。 在一个实施例中，报头站通过向报头站发送用于调度上行链路传输序列的信息来发起第一部分。
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22.发明申请公开(公告)号：US20080219213A1
公开(公告)日：2008-09-11
申请号：US11683719
申请日：2007-03-08
IPC分类号： H04Q7/00
摘要： Various embodiments are described to enable multiple, independent communication networks to share in an autonomous and dynamic manner unlicensed wireless resources. Generally, this involves determining that a first network node (122) is using at least a portion of a wireless resource to provide network service to at least one remote unit (102). A second network node (123), under the control of a different network operator than the first node and desiring to use the wireless resource, sends the first network node, a request to relinquish use of at least a portion of the wireless resource. The second network node sends this request wirelessly, perhaps using the wireless resource itself. If the first network node grants the request, the second node may then begin using at least a portion of the relinquished resource to provide network service.
摘要翻译： 描述了各种实施例以使得多个独立的通信网络以自主和动态方式共享非授权无线资源。 通常，这涉及确定第一网络节点（122）正在使用无线资源的至少一部分来向至少一个远程单元（102）提供网络服务。 第二网络节点（123）在与第一节点不同的网络运营商的控制下并且希望使用无线资源的情况下，发送第一网络节点，放弃使用无线资源的至少一部分的请求。 第二个网络节点可以无线地发送此请求，也许使用无线资源本身。 如果第一网络节点授权请求，则第二节点可以开始使用放弃资源的至少一部分来提供网络服务。
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公开(公告)号：US5790070A
公开(公告)日：1998-08-04
申请号：US851262
申请日：1997-05-05
CPC分类号： H01Q1/288 , H01Q25/00 , H04B7/2041
摘要： A satellite communication network (10) coordinates multiple steerable satellite beams (28) with user requests for connections requiring varying bandwidth in real-time. A control station (22) gathers user requests for connections (64) and transmits those requests (70) to a satellite (20) over an uplink (70). Requests for bandwidth (72) are processed in the satellite (20) where time slot assignments (74) and steerable beam schedules (84) are determined in response to user requests (74). Steerable beam schedule (84) and time slot assignments (74) are transmitted to subscriber units (24) and control station (22) over a broadcast downlink (86). Subscriber units (24) complete a data transfer interval of a call (62) while a steerable beam schedule (84) is executed in real-time.
摘要翻译： 卫星通信网络（10）协调多个可操纵卫星波束（28），其中用户请求实时地需要变化带宽的连接。 控制站（22）收集用户连接请求（64），并通过上行链路（70）将这些请求（70）发送到卫星（20）。 响应于用户请求（74）确定时隙分配（74）和可控射束计划（84）的卫星（20）中对带宽请求（72）进行处理。 通过广播下行链路（86）将指向光束调度（84）和时隙分配（74）发送到用户单元（24）和控制站（22）。 订户单元（24）完成一个呼叫的数据传输间隔（62），同时实时执行可控波束调度（84）。
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公开(公告)号：US5749044A
公开(公告)日：1998-05-05
申请号：US502793
申请日：1995-07-14
CPC分类号： H04B7/18539 , H04W28/16 , H04W84/06
摘要： A central controller (40) executes a method (100) that selects and assigns channels to serve mobile subscriber units (30) in a space-based mobile telecommunication system (10). The method (100) is based on simultaneous consideration of a number of criteria that affect overall system performance of the mobile telecommunication system. Another method (200) assigns serving cells (15-18) by matching the available channel resources with actual caller demand as a function of time. The methods (100, 200) may be used in systems where the actual demand (i.e., offered subscriber traffic) and the number of channels available in each cell (15-18) is varying over time.
摘要翻译： 中央控制器（40）执行方法（100），该方法（100）选择和分配用于在空基移动电信系统（10）中服务移动用户单元（30）的信道。 方法（100）基于同时考虑影响移动电信系统的整体系统性能的多个准则。 另一种方法（200）通过将可用信道资源与实际的呼叫者需求作为时间的函数来分配服务小区（15-18）。 方法（100,200）可以用于实际需求（即，提供的用户业务）和每个小区（15-18）中可用的信道数量随时间变化的系统中。
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25.发明授权System and method for learning and dynamic routing of data in a mobile communication network 失效用于在移动通信网络中学习和动态路由数据的系统和方法
公开(公告)号：US5654958A
公开(公告)日：1997-08-05
申请号：US463816
申请日：1995-06-05
摘要： A communications system (20) and method (100) learns and dynamically selects routes among a number of nodes (1-12) based on network state information. Each of the nodes (1-12) monitors its links and determines the state of each of its link. Each of the nodes (1-11) transmits their respective link state information to a designated node called a center node (12) by using forward propagation. After the link state information has been received from all of the nodes (1-11), the center node (12) aggregates them and forms a comprehensive state of the entire network. This network state information is subsequently distributed by the center node (12) to each of the nodes (1-11) in the network using reverse propagation. Each of the node (1-11) uses the network state information in making route selection decisions for connection requests that arrive after the node updates its network state information. The process of learning about network state information is or will be repeated after a predetermined amount of time (or at periodic intervals).
摘要翻译： 通信系统（20）和方法（100）基于网络状态信息学习并动态地选择多个节点（1-12）中的路由。 每个节点（1-12）监视其链路并确定其每个链路的状态。 每个节点（1-11）通过使用正向传播将它们各自的链路状态信息发送到被称为中心节点（12）的指定节点。 在从所有节点（1-11）接收到链路状态信息之后，中心节点（12）聚合它们并形成整个网络的综合状态。 该网络状态信息随后由中心节点（12）利用反向传播分发给网络中的每个节点（1-11）。 在节点更新其网络状态信息之后，节点（1-11）中的每个节点（1-11）使用网络状态信息来进行到达的连接请求的路由选择决定。 关于网络状态信息的学习过程在预定量的时间（或以周期性间隔）之后是或将被重复。
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公开(公告)号：US5384777A
公开(公告)日：1995-01-24
申请号：US49052
申请日：1993-04-19
申请人： Hamid Ahmadi , David F. Bantz , Frederic J. Bauchot , Arvind Krishna , Richard O. La Maire , Kadathur S. Natarajan
发明人： Hamid Ahmadi , David F. Bantz , Frederic J. Bauchot , Arvind Krishna , Richard O. La Maire , Kadathur S. Natarajan
摘要： A Medium Access (MAC) Protocol is utilized for wireless radio access for a plurality of remote stations to a base station on a LAN. There is a time division fixed frame structure in which time is slotted, and time slots are grouped into fixed frames consisting of data and control subframes or periods. The fixed frame structure consists of three periods (A, B, and C) along with their respective headers. The first period, the A period, is used exclusively for data transfer from the base station to the remote stations. The following period, the B period, is used for contention-free data transfer from the remote stations to the base station. The allocation of the data slots in the A and B periods is performed by the base station. The last period of the frame, designated as the C period, is used for the transmission of reservation requests and data from the remote stations to the base station in a random-access contention mode using a slotted Aloha protocol. The duration of the three periods may be varied using a movable boundary technique.
摘要翻译： 媒体接入（MAC）协议用于多个远程站到LAN上的基站的无线电接入。 存在时隙固定的帧结构，时隙被分段，时隙被分组成由数据和控制子帧或周期组成的固定帧。 固定框架结构由三个周期（A，B和C）及其各自的标题组成。 第一个时期，即A期，专门用于从基站到远程站的数据传输。 以下周期，B周期，用于从远程站到基站的无争用数据传输。 A和B周期中的数据时隙的分配由基站执行。 指定为C周期的帧的最后一个周期用于使用时隙Aloha协议以随机接入争用模式从远程站向基站发送预留请求和数据。 可以使用可移动边界技术来改变三个周期的持续时间。
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公开(公告)号：US5241542A
公开(公告)日：1993-08-31
申请号：US749234
申请日：1991-08-23
CPC分类号： G06F1/3215 , H04W52/0216 , H04W52/0229 , H04W74/00 , H04W74/04 , Y02B60/50
摘要： A method and apparatus for conserving battery power in a wireless link adapter of a battery operated computer such as a portable laptop computer, as controlled by a scheduled multiaccess protocol. The portable computer is operable as a mobile unit in a multi-cell wireless network. The scheduled access multiaccess protocol is implemented to effectively conserve battery power by suitable control of the state of the controller, the transmitter and receiver units at the wireless link adapter by scheduling when the adapter is in a normal running mode, or a standby mode in which power is conserved.
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28.发明授权Robust scheduling mechanm for efficient band-width usage in muliticell wireless local networks 失效用于在无线局域网中实现有效带宽使用的稳健调度机制
公开(公告)号：US5210753A
公开(公告)日：1993-05-11
申请号：US785643
申请日：1991-10-31
CPC分类号： H04W72/1231 , H04W28/18
摘要： A wireless communications network includes a local area network connected to a plurality of nodes which perform bidirectional wireless communication with mobile stations as controlled by a controller. Each node has a geographic area, termed a cell, within which mobile stations can communicate with the node associated with the cell. A cell interference graph is read into the controller, and a maximal independent set of nodes is determined. Each node in the maximal independent set of nodes is put in a set termed ACTIVE for performing wireless communication with mobile stations in their respective cells. Nodes which are not in the maximal independent set of nodes is put in a set termed WAITING to wait for permission to enter the set ACTIVE. A node in the set ACTIVE which has completed communications sends a completion signal to the controller. The controller then examines which of the nodes in the set WAITING is not adjacent to another node in the set ACTIVE, and such nodes are entered in a set termed CANDIDATES. Nodes in the set CANDIDATES are moved to the set ACTIVE according to a predetermined criteria.
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29.发明授权Processor allocation method and apparatus for multiprocessor execution of a constraint satisfaction search 失效用于多处理器执行约束满足搜索的处理器分配方法和装置
公开(公告)号：US5146540A
公开(公告)日：1992-09-08
申请号：US815634
申请日：1991-12-30
CPC分类号： G06F9/5066 , G06N5/003
摘要： Apparatus and method for minimizing, in a multiprocessor system, a variance in a search effort along different subtrees of a backtrack search tree employed for solving an instance of a constraint-satisfaction problem. A method includes the steps of (a) estimating an amount of search effort required for different subtrees of the search tree, (b) allocating an appropriate number of processors to each of the different subtrees of the search tree based upon the estimated amount of search effort, the number of processor allocated to each of the subtrees being selected to minimize a variance in search processing time along the different subtrees, and (c) executing the search with the allocated processors in parallel along the different subtrees of the search tree. The step of allocating an appropriate number of processors includes the steps of (a) dividing the search tree into N(
摘要翻译： 用于在多处理器系统中最小化用于解决约束满足问题的实例的回溯搜索树的不同子树的搜索工作中的方差。 一种方法包括以下步骤：（a）估计搜索树的不同子树所需的搜索努力量，（b）基于估计的搜索量向搜索树的不同子树中的每一个分配适当数量的处理器 分配给每个子树的处理器的数量被选择以最小化沿着不同子树的搜索处理时间的变化，以及（c）沿着搜索树的不同子树并行地执行与分配的处理器的搜索。 分配适当数量的处理器的步骤包括以下步骤：（a）将搜索树划分为N（
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30.发明授权Method and apparatus for transmitting a superframe across a communication network 有权用于在通信网络上传输超帧的方法和装置公开(公告)号：US08116244B2
公开(公告)日：2012-02-14
申请号：US11612617
申请日：2006-12-19
CPC分类号： H04W72/005 , H04W4/08
摘要： A method and apparatus includes a scheduling entity (308) for scheduling and transmitting the superframe (402) across a communication network (200). The controller (310) coupled with scheduling entity (308) groups the subscriber unit (304) into one of the plurality of groups. The scheduler entity (308) assigns a coding scheme for each group and encodes each frame of the superframe (402) based upon the assigned coding scheme for the group, to which the frame is to be transmitted. The transceiver (316) coupled with controller (310) via hardware interface (314) receives the encoded superframe and transmits the superframe to the plurality of subscriber units in the communication network (200).
摘要翻译： 一种方法和装置包括：调度实体（308），用于跨越通信网络（200）调度和发送超帧（402）。 与调度实体（308）耦合的控制器（310）将用户单元（304）分组成多个组中的一个组。 调度器实体（308）为每个组分配编码方案，并根据为该帧要发送的组的分配的编码方案对超帧（402）的每个帧进行编码。 经由硬件接口（314）与控制器（310）耦合的收发器（316）接收经编码的超帧，并将该超帧发送到通信网络（200）中的多个用户单元。
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