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1.发明授权Method of pre-computation of candidate handoff cell list for cellular communications 失效用于蜂窝通信的候选切换小区列表的预计算方法
公开(公告)号：US5678184A
公开(公告)日：1997-10-14
申请号：US431006
申请日：1995-04-28
CPC分类号： H04B7/18541 , H04W36/0061 , H04W64/006 , H04W84/06
摘要： A satellite cellular communication system includes satellites in motion that project cells upon the surface of the Earth. These cells are in motion and pass over individual subscriber units (26) engaged in communications, thus requiring individual subscriber units (26) to perform handoffs as an active current cell (300) currently servicing them advances. Selection of a subsequent servicing cell requires evaluation of active neighboring cells. A pre-computation of candidate cells is performed in advance according to a cell activation schedule. Active neighboring cells of an active current cell (300) are evaluated and prioritized in advance of individual subscriber unit's need for them. A candidate handoff cell list is then delivered to a satellite (12). A candidate handoff cell list is broadcast to all individual subscriber units (26) located within active current cell (300) for use in handoff decisions.
摘要翻译： 卫星蜂窝通信系统包括在地球表面投影小区的运动卫星。 这些小区处于运动状态，并且通过从事通信的各个用户单元（26），从而要求各个用户单元（26）执行切换，作为当前为其进行维护的活动当前小区（300）。 选择后续服务小区需要评估活动的相邻小区。 根据小区激活时间表预先执行候选小区的预计算。 有效的当前单元（300）的有源相邻单元被评估并且在各个用户单元对它们的需求之前被优先化。 然后将候选切换小区列表传送到卫星（12）。 候选切换小区列表被广播到位于有效当前小区（300）内的所有个体用户单元（26），以用于切换决定。
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2.发明授权Space-based communication system and method with continuous channel reuse maintenance 失效基于空间的通信系统和方法，具有连续的信道重用维护
公开(公告)号：US5862479A
公开(公告)日：1999-01-19
申请号：US775073
申请日：1996-12-27
CPC分类号： H04B7/195
摘要： The system (10) and method (100) adjust reuse units when nodes (e.g., satellites (20, 22)) move in a communication system (10), such as satellites (20,22) moving in their orbits around the earth in a space-based communication system (10). The method (100) and system (10) computes interference potentials between a reference reuse unit in a first reuse unit table of a first satellite (20) and reuse units being used in second reuse unit tables in second satellites (20) that are adjacent to the first satellite (20); and when the interference potentials is less than a predetermined threshold, then assigns the satellite a non-interfering reuse unit for the specific time interval.
摘要翻译： 当节点（例如，卫星（20,22））在通信系统（10）中移动的系统（10）和方法（100）调整重用单元，例如卫星（20,22）在其绕地球的轨道中移动 基于空间的通信系统（10）。 方法（100）和系统（10）计算在第一卫星（20）的第一重用单元表中的参考重用单元和在相邻的第二卫星（20）中的第二重用单元表中使用的重用单元之间的干扰电位 到第一颗卫星（20）; 并且当干扰电位小于预定阈值时，将卫星分配给特定时间间隔的非干扰重用单元。
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公开(公告)号：US5790954A
公开(公告)日：1998-08-04
申请号：US452758
申请日：1995-05-30
CPC分类号： H04W16/04 , H04B7/18541
摘要： A cellular communication system (10) requests from subscriber units (30) to volunteer for handoff when a call resource shortage is about to occur. The subscriber units (30) may volunteer to handoff to another cell (24) depending on whether any adjacent or neighbor cell (24) provides adequate signal strength for servicing the on-going call. If there is another adjacent or neighbor cell (24) which provides adequate signal strength, the subscriber unit (30) can volunteer for handoff to the other cell. The cellular communication system (10) may accept the volunteer handoff request, whereby the subscriber unit (30) volunteering for handoff is handed-off to the other cell (24). However, the cellular communication system (10) may deny the handoff request. If the handoff request is denied, the subscriber unit (30) may have to drop the call or try to locate another cell to handoff its call before a predetermined amount of time expires.
摘要翻译： 当呼叫资源不足即将发生时，蜂窝通信系统（10）从用户单元（30）请求自愿切换。 取决于任何相邻小区（24）是否提供足够的信号强度来维持正在进行的呼叫，订户单元（30）可以自愿地切换到另一小区（24）。 如果存在提供足够的信号强度的另一相邻小区（24），则用户单元（30）可以自愿地切换到另一小区。 蜂窝通信系统（10）可以接受志愿者切换请求，由此自愿切换的用户单元（30）被切换到另一小区（24）。 然而，蜂窝通信系统（10）可以拒绝切换请求。 如果越区切换请求被拒绝，则在预定时间期满之前，用户单元（30）可能必须丢弃呼叫或尝试定位另一个小区来切换其呼叫。
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4.发明授权Method and apparatus for managing resource allocation conflicts in a communications systems 失效用于管理通信系统中的资源分配冲突的方法和装置公开(公告)号：US06377540B1
公开(公告)日：2002-04-23
申请号：US09126651
申请日：1998-07-31
IPC分类号： G01R3108
CPC分类号： H04L47/822 , H04B7/18539 , H04L47/15 , H04L47/70 , H04L47/746 , H04L47/762
摘要： A conflict resolution center (130 FIG. 1) is used to manage and resolve resource allocation conflicts in communications system (100) including a number of semi-autonomous communications nodes (SACNs). SACN (110) operates semi-autonomously because SACNs cannot independently allocate and de-allocate resources but rather operate within the confines of at least one local neighborhood. SACNs (110) allocate and de-allocate resources locally based on local neighborhood information. A conflict occurs when at least two SACNs try to allocate the same resource. Conflict resolution center (130) resolves conflicts using a number of different procedures. When a conflict can be resolved, conflict resolution center (130) provides resource reallocation data to at least one SACN (110). When a conflict cannot be resolved, conflict resolution center (130) notifies a system administrator.
摘要翻译： 冲突解决中心（130图1）用于管理和解决包括多个半自主通信节点（SACN））的通信系统（100）中的资源分配冲突。 SACN（110）半自主运行，因为SACN不能独立地分配和分配资源，而是在至少一个当地邻域的范围内运行。 SACN（110）根据本地邻域信息在本地分配和分配资源。 当至少有两个SACN尝试分配相同的资源时，会发生冲突。 冲突解决中心（130）使用许多不同的程序解决冲突。 当冲突解决时，冲突解决中心（130）向至少一个SACN（110）提供资源重新分配数据。 当冲突无法解决时，冲突解决中心（130）通知系统管理员。
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5.发明授权Method and system for managing the initiation of new traffic in a resource limited communication system 失效在资源有限的通信系统中管理新业务的启动的方法和系统
公开(公告)号：US5862478A
公开(公告)日：1999-01-19
申请号：US509373
申请日：1995-07-31
IPC分类号： H04B7/185
CPC分类号： H04B7/18539
摘要： A method and apparatus for controlling the initiation of new user communication links in a communication system (10), by evaluating the present in-use resources in a particular cell against reserved resources for servicing handoff communications from neighboring cells, evaluating total in-use resources of satellite (12), and determining if present conditions in satellite (12) exceed defined parameters thus inhibiting access by new users. A status is posted and transmitted in a broadcast channel (18) for subscriber units (26) to evaluate prior to initiating requests for communication services.
摘要翻译： 一种用于在通信系统（10）中控制新用户通信链路的启动的方法和装置，通过将特定小区中的当前使用资源与来自相邻小区的切换通信的预留资源进行评估，评估总的在用资源 并且确定卫星（12）中的现状是否超过限定的参数，从而阻止新用户的访问。 在用于广播信道（18）的用户单元（26）中发布和发送状态以在发起对通信服务的请求之前进行评估。
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6.发明授权Method and apparatus for default node operation in a multi-nodal communication system 失效多节点通信系统中默认节点操作的方法和装置
公开(公告)号：US5794120A
公开(公告)日：1998-08-11
申请号：US506306
申请日：1995-07-24
IPC分类号： H04B7/185
CPC分类号： H04B7/18539
摘要： In a communication system (10) having at least one control center (24) and multiple satellites (12), the satellites (12) operate according to tables (80), wherein each satellites table becomes obsolete at a known time referred to as the exhaustion time. The earliest exhaustion time of all satellites (12) is determined and sent to the satellites (12) in the form of a message or a time-tagged update table (150). When the earliest exhaustion time is reached without updating the satellite (12), the satellites (12) enter default operation at that earliest exhaustion time. The satellites (12) continue default operations until otherwise instructed by the control center (24).
摘要翻译： 在具有至少一个控制中心（24）和多个卫星（12）的通信系统（10）中，卫星（12）根据表格（80）进行操作，其中每个卫星台在已知的时间被称为 用尽时间 所有卫星（12）的最早耗尽时间被确定并以消息或时间标记更新表（150）的形式发送到卫星（12）。 当没有更新卫星（12）到达最早的耗尽时间时，卫星（12）在最早的耗尽时间进入默认操作。 卫星（12）继续进行默认操作，直到控制中心（24）指示为止。
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公开(公告)号：US5657323A
公开(公告)日：1997-08-12
申请号：US506307
申请日：1995-07-24
CPC分类号： H04J1/12 , H04B7/18539 , H04J1/14 , H04J3/1647 , H04J4/00
摘要： A method and apparatus for controlling communication channel allocation in a communication system (10) by obtaining (405) statistical system performance data, determining (415, 420) by a processor (815) an optimum number of sub-time slots (505, 615) and an optimum number of sub-subbands (605), generating (430) available signal transmission units from data describing historical communication traffic, and assigning (435) available signal transmission units by another processor (910) to dynamically control communication traffic.
摘要翻译： 一种用于通过获得（405）统计系统性能数据来控制通信系统（10）中的通信信道分配的方法和装置，由处理器（815）确定最佳数量的子时隙（505,615） ）和最佳数量的子子带（605），从描述历史通信业务的数据生成（430）可用信号传输单元，以及由另一处理器（910）分配（435）可用信号传输单元以动态地控制通信业务。
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