APPARATUS AND METHOD FOR DYNAMICALLY SELECTING A TRANSMITTER FOR DIRECTED MESSAGE DELIVERY
    1.
    发明申请
    APPARATUS AND METHOD FOR DYNAMICALLY SELECTING A TRANSMITTER FOR DIRECTED MESSAGE DELIVERY 审中-公开
    用于动态选择用于方向消息传递的发射机的装置和方法

    公开(公告)号:WO1998020619A1

    公开(公告)日:1998-05-14

    申请号:PCT/US1997019865

    申请日:1997-10-31

    Applicant: MOTOROLA INC.

    CPC classification number: H04H20/67 H04L1/242 H04W84/022 H04W88/185

    Abstract: Apparatus and method for dynamically selecting a transmitter for directed message delivery in a messaging system (100) including plural transmitters (107-111) operating in a simulcast or non-simulcast mode. A communication system (1100) dynamically selects transmitters (1115) by sending transmission signals, receiving the transmission signals at a PMU (1105), calculating signal strengths of the transmission signals, transmitting a signal indicative of the signal strengths, receiving the signal and determining therefrom carrier-to-interference (C/I) values indicative of relative strengths of the transmission signals at a controller (1110), and delivering a message with a selected transmitter (1115) associated with a lowest C/I value that is chosen from the C/I values and that exceeds a C/I threshold value.

    Abstract translation: 一种用于在消息收发系统(100)中动态地选择用于定向消息传送的发射机的装置和方法,包括以同步或非联播模式操作的多个发射机(107-111)。 通信系统(1100)通过发送发送信号动态地选择发射机(1115),在PMU(1105)处接收发送信号,计算发送信号的信号强度,发送表示信号强度的信号,接收信号和确定 从而指示控制器(1110)处的传输信号的相对强度的载波对干扰(C / I)值,以及递送与所选择的发射机(1115)的消息,所述发射机与最低C / I值相关联,所述最低C / I值选自 C / I值超过C / I阈值。

    METHOD AND APPARATUS FOR FACILITATING INBOUND CHANNEL ACCESS
    2.
    发明申请
    METHOD AND APPARATUS FOR FACILITATING INBOUND CHANNEL ACCESS 审中-公开
    促进接入渠道访问的方法和装置

    公开(公告)号:WO1998032240A1

    公开(公告)日:1998-07-23

    申请号:PCT/US1997023134

    申请日:1997-12-02

    Applicant: MOTOROLA INC.

    CPC classification number: H04B1/7143 H04J3/02 H04L5/0007 H04W4/12 H04W72/121

    Abstract: Inbound channel access is facilitated in a two-way messaging system (figure 1) utilizing a frequency-hopped spread-spectrum modulation technique on a set of hopping frequencies. First and second subsets of the set of hopping frequencies are defined (504), the first and second subsets being orthogonal to one another. Scheduled transmissions are communicated (514) on the first subset, and ALOHA transmissions are communicated (514) on the second subset.

    Abstract translation: 在一组跳频中利用跳频扩频调制技术的双向消息传送系统(图1)便于入站信道接入。 定义跳频频率集合的第一和第二子集(504),第一和第二子集彼此正交。 在第一子集上传送调度的传输(514),并且在第二子集上传送ALOHA传输(514)。

    MULTIPLE ACCESS FREQUENCY HOPPING NETWORK WITH INTERFERENCE AVOIDANCE
    3.
    发明申请
    MULTIPLE ACCESS FREQUENCY HOPPING NETWORK WITH INTERFERENCE AVOIDANCE 审中-公开
    具有干扰避免的多路访问频率选择网络

    公开(公告)号:WO2002067469A1

    公开(公告)日:2002-08-29

    申请号:PCT/US2001/048411

    申请日:2001-12-14

    Applicant: MOTOROLA INC.

    CPC classification number: H04B1/715 H04B2001/7154

    Abstract: Spread spectrum packet-switching radio devices (22) are operated in two or more ad-hoc networks or pico-networks (19, 20, 21) that share frequency-hopping channels and time slots that may collide. The piconets (19, 20, 21) can be short range wireless associations of communicating devices (22), for example according to the Bluetooth, Home RF or similar industry protocols. One device in each piconet (19, 20, 21) is a synchronizing master (25) and others are slaves (27) that follow the master's frequency hopping sequence. The sequences (54) of two or more operating piconets (19, 20, 21), i.e., masters (25), occasionally coincide, which could cause simultaneous transmissions that interfere or collide. The frequency hopping sequences (54) of two or more masters (25) are exchanged using identity codes, permitting the devices to anticipate collision time slots (52). Priorities are assigned to the simultaneously operating piconets (19, 20, 21) during collision slots (52), e.g., as a function of their message queue size or latency, or other factors. Lower priority devices may abstain from transmitting during predicted collision slots (52), and/or a higher priority device may employ enhanced transmission resources during those slots, such as higher error correction levels, or various combinations of abstinence and error correction may be applied. Collisions are avoided or the higher priority piconet (19, 20, 21) is made likely to prevail in a collision. Priorities are repetitively re-determined and re-assigned, to allocate communications resources among all the devices (22) and piconets (19, 20, 21).

    Abstract translation: 扩频分组交换无线电设备(22)在共享跳频信道和可能发生冲突的时隙的两个或多个自组织网络或微微网络(19,20,21)中操作。 微微网(19,20,21)可以是例如根据蓝牙,家庭RF或类似工业协议的通信设备(22)的短距离无线关联。 每个微微网(19,20,21)中的一个设备是同步主机(25),而其他设备是跟随主机的跳频序列的从机(27)。 两个或更多个操作微微网(19,20,21)的序列(54),即主机(25)偶尔重合,这可能导致干扰或碰撞的同时传输。 使用身份码交换两个或多个主器件(25)的跳频序列(54),允许设备预测冲突时隙(52)。 在冲突时隙(52)期间,优先级被分配给同时操作的微微网(19,20,21),例如,作为其消息队列大小或延迟或其他因素的函数。 较低优先级的设备可以在预测的冲突时隙(52)期间放弃发射,和/或较高优先级的设备可以在这些时隙期间采用增强的传输资源,例如更高的纠错水平,或者可以应用各种禁欲和纠错的组合。 避免碰撞,或者较高优先级的微微网(19,20,21)在碰撞中成为可能。 优先级被重新确定并重新分配,以在所有设备(22)和微微网(19,20,21)之间分配通信资源。

    METHOD AND APPARATUS FOR DYNAMIC CHANNEL CONFIGURATION
    4.
    发明申请
    METHOD AND APPARATUS FOR DYNAMIC CHANNEL CONFIGURATION 审中-公开
    用于动态通道配置的方法和装置

    公开(公告)号:WO1998026526A1

    公开(公告)日:1998-06-18

    申请号:PCT/US1997018879

    申请日:1997-10-28

    Applicant: MOTOROLA INC.

    CPC classification number: H04W72/1231 H04B1/69 H04B7/2628 H04J13/00

    Abstract: A controller (122) that dynamically configures a number of channels within a communication system (102) having a predetermined bandwidth comprises a processor (710) and memory (714), wherein the processor is programmed to receive a channel request from a subscriber unit for an inbound transmission of information. The processor (710) is further programmed to determine a type of information to be transmitted from the channel request and configure the predetermined bandwidth to be transmitted from the subscriber unit.

    Abstract translation: 动态地配置具有预定带宽的通信系统(102)内的信道数目的控制器(122)包括处理器(710)和存储器(714),其中处理器被编程为从用户单元接收来自用户单元的信道请求 信息的入站传输。 处理器(710)还被编程为确定要从信道请求发送的信息的类型,并且配置要从用户单元发送的预定带宽。

    METHOD AND APPARATUS FOR OVERLAYING AN INBOUND CHANNEL ON AN OUTBOUND SYSTEM
    5.
    发明申请
    METHOD AND APPARATUS FOR OVERLAYING AN INBOUND CHANNEL ON AN OUTBOUND SYSTEM 审中-公开
    用于在外界系统上覆盖接收通道的方法和装置

    公开(公告)号:WO1998017015A1

    公开(公告)日:1998-04-23

    申请号:PCT/US1997017099

    申请日:1997-09-30

    Applicant: MOTOROLA INC.

    CPC classification number: H04W84/025

    Abstract: A selective call two-way communication system having a plurality of selective call transceiver units (170) using an inbound channel overlay on an outbound selective call system, the selective call transceiver units comprising a receiver (173) for receiving a message having an address directed to and decodable by the receiver wherein the address (58) points to a vector (60), a decoder (174) for decoding a pointer within the vector that points to a control information portion (66) within an outbound message portion (67) and for decoding another control information portion (64) for controlling inbound transmissions within an outbound message portion, and a transmitter (172) for transmitting information in accordance with the control information portions. The system further comprises a controller (114) for receiving, formatting and encoding messages having an address wherein the address points to a vector(s) which contains pointer(s) to control information portion(s) within an outbound message portion.

    Abstract translation: 一种选择性呼叫双向通信系统,其具有使用入站选择呼叫系统上的入站信道覆盖的多个选择性呼叫收发器单元(170),所述选择性呼叫收发机单元包括用于接收具有地址定向的消息的接收机(173) 由接收器进行解码,其中地址(58)指向向量(60),解码器(174),用于解码向量内的指向出站消息部分(67)内的控制信息部分(66)的指针, 并且用于解码用于控制出站消息部分内的入站传输的另一个控制信息部分(64),以及用于根据控制信息部分发送信息的发射机(172)。 该系统还包括用于接收格式化和编码具有地址的消息的控制器(114),其中地址指向包含用于控制出站消息部分内的信息部分的指针的向量。

    METHOD AND DEVICE FOR SELECTING A WIRELESS COMMUNICATIONS PATH
    6.
    发明申请
    METHOD AND DEVICE FOR SELECTING A WIRELESS COMMUNICATIONS PATH 审中-公开
    用于选择无线通信路径的方法和设备

    公开(公告)号:WO2002080594A1

    公开(公告)日:2002-10-10

    申请号:PCT/US2002/007401

    申请日:2002-03-12

    Applicant: MOTOROLA, INC.

    CPC classification number: H04W40/02 H04L45/04 H04L45/44 H04W40/246 H04W84/18

    Abstract: Disclosed is a method of and device for selecting a path for communications between a source device and a target device in an ad-hoc communications system. Operations performed include; determining a first layer of neighbor devices, each neighbor device within the first layer capable of communicating with the source device; successively determining additional layers of neighbor devices, each neighbor device within a particular layer capable of communicating with one or more neighbor device within a preceding layer, until the target device is identified as one of the neighbor devices; and selecting the path including intervening neighbor devices capable of communicating with each other to form the path for communications from the source device to the target device.

    Abstract translation: 公开了一种用于在自组织通信系统中选择源设备和目标设备之间的通信路径的方法和设备。 执行的操作包括 确定第一层邻居设备,所述第一层内的每个相邻设备能够与所述源设备进行通信; 连续地确定相邻设备的附加层,特定层内的每个相邻设备能够与前一层内的一个或多个相邻设备通信,直到目标设备被识别为相邻设备之一; 以及选择包括能够彼此通信的中间相邻设备的路径,以形成用于从源设备到目标设备的通信的路径。

    METHOD AND APPARATUS FOR INTERFERENCE SUPPRESSION IN SPREAD SPECTRUM SIGNALS
    7.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE SUPPRESSION IN SPREAD SPECTRUM SIGNALS 审中-公开
    用于传播频谱信号干扰抑制的方法和装置

    公开(公告)号:WO1997015996A1

    公开(公告)日:1997-05-01

    申请号:PCT/US1996015107

    申请日:1996-09-20

    Applicant: MOTOROLA INC.

    CPC classification number: H04B1/7102

    Abstract: Interference removal in spread spectrum signals, comprises the steps at a spread spectrum transmitter (10) of spreading information across a predetermined spectrum by phase modulating a repeating noise sequence (18), providing a spread spectrum signal and transmitting the spread spectrum signal. The method further comprises the steps at a receiver of receiving the spread spectrum signal along with interference (41) multiplying (42) the spread spectrum signal along with interference by a window function (44) providing a multiplied spread spectrum signal. The information is recovered by despreading the multiplied (48) spread spectrum signal using a reciprocal (50) of the spectrum of the repeating noise sequence to obtain a data spectrum with interference and subsequently normalize (52) to obtain a clean data spectrum. Alternatively the information can be recovered by substituting a corrupted magnitude spectrum with a prestored PN sequence magnitude spectrum (70) as shown by receiver (60).

    Abstract translation: 扩展频谱信号中的干扰消除包括通过对重复噪声序列(18)进行相位调制而在预定频谱上扩展信息的扩频发射器(10)的步骤,提供扩展频谱信号并发射扩频信号。 该方法还包括在接收器处接收扩展频谱信号的步骤以及将扩展频谱信号与由提供相乘的扩频信号的窗函数(44)的干扰相乘的干扰(41)。 通过使用重复噪声序列的频谱的倒数(50)解扩展乘法(48)扩频信号来恢复信息,以获得具有干扰的数据频谱,随后归一化(52)以获得干净的数据频谱。 或者,可以通过用接收器(60)所示的预先存储的PN序列幅度谱(70)代替损坏的幅度频谱来恢复信息。

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