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    Wireless communication system
    2.
    发明授权
    Wireless communication system 失效
    无线通信系统

    公开(公告)号：US5258995A

    公开(公告)日：1993-11-02

    申请号：US789292

    申请日：1991-11-08

    申请人： Chun-Meng Su ,  Saman Behtash ,  Keith Jarett ,  Huihung Lu ,  Christopher Flores ,  David G. Messerschmitt

    发明人： Chun-Meng Su ,  Saman Behtash ,  Keith Jarett ,  Huihung Lu ,  Christopher Flores ,  David G. Messerschmitt

    IPC分类号： H03M5/14 ,  H03M13/31 ,  H04J1/12 ,  H04J3/06 ,  H04J13/16 ,  H04L25/49 ,  H04M1/725 ,  H04K1/00

    CPC分类号： H04J1/12 ,  H03M13/31 ,  H03M5/145 ,  H04J3/0605 ,  H04L25/4908 ,  H04M1/72502 ,  H04J13/16

    摘要： In the present invention a wireless communication system is disclosed. A base unit communicates with a remote unit. The system comprises means for transmitting, using CDMA, between the base unit and the remote unit, in one of a plurality of frequencies channels selected. In one period of time, the base unit transmits and in another period of time, different from the one period, the remote unit transmits. Further, the system comprises means for changing the one frequency channel selected to another frequency channel, different from the one frequency channel, in response to interference in the one frequency channel. Thus, communication between the base unit and the remote unit is then affected over the another frequency channel.

    摘要翻译： 在本发明中，公开了一种无线通信系统。 基本单元与远程单元通信。 该系统包括用于在所选择的多个频率信道之一中使用CDMA在基本单元和远程单元之间进行发送的装置。 在一个时间段内，基站单元在远程单元发送的另一个时间段内发送不同于一个周期的时间段。 此外，该系统包括用于响应于一个频率信道中的干扰而将选择的一个频率信道改变为与一个频率信道不同的另一频率信道的装置。 因此，基本单元和远程单元之间的通信然后在另一频率信道上受到影响。

    Method and an apparatus for re-establishing wireless communication between a base unit and a remote unit
    3.
    发明授权
    Method and an apparatus for re-establishing wireless communication between a base unit and a remote unit 失效
    用于在基本单元和远程单元之间重新建立无线通信的方法和装置

    公开(公告)号：US5212808A

    公开(公告)日：1993-05-18

    申请号：US789736

    申请日：1991-11-08

    申请人： Chun-Meng Su ,  Keith Jarett ,  Christopher Flores

    发明人： Chun-Meng Su ,  Keith Jarett ,  Christopher Flores

    IPC分类号： H03M5/14 ,  H03M13/31 ,  H04L25/49 ,  H04M1/725

    CPC分类号： H03M5/145 ,  H03M13/31 ,  H04L25/4908 ,  H04M1/72502

    摘要： In the present invention a method of re-establishing a wireless communication after a communication break is disclosed. Prior to the communication break, a base unit transmits to a remote unit a table of channels of communication to be used. The base unit also transmits a clock signal value to the remote unit. After a communication break, the remote unit continues to count the clock signals generated from a clock signal source internal thereto. The remote unit applies a function to the value of the clock signal to obtain an entry in the table. The channel of communication associated with the entry in the table is selected by the remote unit. The base unit continues to count the clock signals generated internal thereto. The base unit applies the same function as the function used by the remote unit to the value of the clock signal to obtain an entry in the table. The base unit selects the channel of communication associated with the entry in the table. Thereafter, communication is re-established over the channel of communication associated with the entry in the table.

    摘要翻译： 在本发明中，公开了在通信中断之后重新建立无线通信的方法。 在通信中断之前，基站单元向远程单元发送要使用的通信信道的表。 基本单元还向远程单元发送时钟信号值。 在通信中断之后，远程单元继续对从其内部的时钟信号源产生的时钟信号进行计数。 远程单元对时钟信号的值应用功能，以获得表中的条目。 与表中的条目相关联的通信通道由远程单元选择。 基本单元继续对其内部产生的时钟信号进行计数。 基本单元将与远程单元使用的功能相同的功能应用于时钟信号的值，以获得表中的条目。 基本单元选择与表中的条目相关联的通信信道。 此后，通过与表中的条目相关联的通信信道重新建立通信。

    Multi-rate wireless communications system
    4.
    发明授权
    Multi-rate wireless communications system 失效
    多速率无线通信系统

    公开(公告)号：US5745480A

    公开(公告)日：1998-04-28

    申请号：US681191

    申请日：1996-07-22

    申请人： Saman Behtash ,  Christopher Flores ,  Adel Ghanem

    发明人： Saman Behtash ,  Christopher Flores ,  Adel Ghanem

    IPC分类号： H04B7/005 ,  H04J13/00 ,  H04W28/18 ,  H04W52/26 ,  H04J13/02 ,  H04Q7/34

    CPC分类号： H04W52/265 ,  H04J13/00 ,  H04W28/18 ,  H04W52/267

    摘要： A multi-rate wireless communications system that supports a plurality of distributed user terminals in full-duplex simultaneous communications with a central base station, where each user terminal is provided on demand with one of multiple bit rates at a negotiated QOS is provided. Each user is assigned a variable bit rate, a variable processing gain, a variable transmit power and a unique fixed rate spreading code, resulting in a constant bandwidth signal received at a relative power level corresponding to the negotiated QOS. This application can be applied to systems including wireless local loop and mobile cellular. By adjusting signal energy and interference energy, variable bit rates and negotiated QOS parameters can be supported. The forward link between base-station and user terminal, and the reverse link between the user terminal and base-station, can correspond to either a Frequency Division Duplexing (FDD) arrangement where the forward and reverse links occupy different carrier frequencies but overlap in time, or a Time Division Duplexing (TDD) arrangement where the forward and reverse links occupy the same carrier frequency but are in non-overlapping time intervals.

    摘要翻译： 提供了一种多速率无线通信系统，其支持与中央基站进行全双工同步通信的多个分布式用户终端，其中每个用户终端按照协商提供的QOS中的多个比特率之一按需提供。 为每个用户分配了可变比特率，可变处理增益，可变发射功率和唯一固定速率扩展码，导致在对应于协商的QOS的相对功率电平下接收的恒定带宽信号。 该应用可以应用于无线本地环路和移动蜂窝系统。 通过调整信号能量和干扰能量，可以支持可变比特率和协商的QOS参数。 基站和用户终端之间的前向链路以及用户终端与基站之间的反向链路可以对应于频分双工（FDD）布置，其中正向和反向链路占用不同的载波频率，但是在时间上重叠 ，或时分双工（TDD）布置，其中正向链路和反向链路占据相同的载波频率但处于非重叠的时间间隔。

    Method and apparatus for a wireless local area network
    5.
    发明授权
    Method and apparatus for a wireless local area network 失效
    一种用于无线局域网的方法和装置

    公开(公告)号：US5553076A

    公开(公告)日：1996-09-03

    申请号：US236588

    申请日：1994-05-02

    申请人： Saman Behtash ,  Christopher Flores ,  Adel Ghanem

    发明人： Saman Behtash ,  Christopher Flores ,  Adel Ghanem

    IPC分类号： H04L12/28 ,  H04J3/16

    CPC分类号： H04W28/26 ,  H04W4/12 ,  H04W48/08 ,  H04W56/0015 ,  H04W72/0446 ,  H04W84/12 ,  Y02B60/50

    摘要： A protocol for wireless local area network communication between a base stationary unit and a plurality of wireless terminals is disclosed. The main features of this protocol is based upon channel reservation requests by active wireless terminals. Contention is resolved and authorization is granted with data message signals transmitted by the authorized wireless terminal either immediately for asynchronous service or periodically for a time-based service. The system further provides for the base stationary unit to query the receipt of the data message signal by the wireless terminal authorized to receive the transmission. If no response signal is received, then the base stationary unit would authorize for itself transmission of the data message to relay it, either "over the air" or via wired connection to another base stationary unit in another data cell. The synchronous nature of the method provides for power saving by allowing the receiver and/or transmitter to be powered down during idle and other time slots.

    摘要翻译： 公开了一种用于基站固定单元与多个无线终端之间的无线局域网通信的协议。 该协议的主要特征是基于主动无线终端的信道预留请求。 竞争得到解决，授权由授权无线终端发送的数据消息信号立即进行异步服务或周期性地进行基于时间的服务。 该系统进一步提供基站固定单元，通过被授权接收传输的无线终端查询数据消息信号的接收。 如果没有接收到响应信号，则基站固定单元将授权本身传输数据消息以“通过空中”或通过有线连接将其中继到另一个数据信元中的另一个基站固定单元。 该方法的同步性质通过允许接收机和/或发射机在空闲和其他时隙期间断电来提供功率节省。

    Method and an apparatus for establishing the functional capabilities for wireless communications between a base unit and a remote unit
    6.
    发明授权
    Method and an apparatus for establishing the functional capabilities for wireless communications between a base unit and a remote unit 失效
    用于建立基本单元和远程单元之间的无线通信的功能能力的方法和装置

    公开(公告)号：US5267244A

    公开(公告)日：1993-11-30

    申请号：US789348

    申请日：1991-11-08

    申请人： David G. Messerschmitt ,  Christopher Flores ,  Hulhung Lu

    发明人： David G. Messerschmitt ,  Christopher Flores ,  Hulhung Lu

    IPC分类号： H03M5/14 ,  H03M13/31 ,  H04L25/49 ,  H04M1/725 ,  H04B7/212

    CPC分类号： H04M1/72502 ,  H03M13/31 ,  H03M5/145 ,  H04L25/4908

    摘要： In a wireless communication system between a base unit and a remote unit, the base unit transmits periodically a sync signal in a first selected time period in a selected frequency channel. The remote unit scans the frequency channels to detect the sync signal. The remote unit transmits a response signal in the selected frequency channel. The response signal is transmitted in a second selected time period different from the first selected time period. In addition, the remote unit transmits a first control signal encoded by a first code in the selected frequency channel in a third selected time period, different from the first and second selected time periods, containing a set of functional capabilities of the remote unit. The base unit receives and decodes the first control signal to derive the set of functional capabilities of the remote unit and compares it to its own set of functional capabilities to determine a common set of functional capabilities. The base unit transmits a second control signal encoded by the first code in the same selected frequency channel in a fourth selected time period containing the common set of functional capabilities. Thereafter, communication between the base unit and the remote unit is based upon a functional capability selected from the common set.

    摘要翻译： 在基本单元和远程单元之间的无线通信系统中，基站单元在所选择的频率信道中的第一选定时间周期内周期性地发送同步信号。 远程单元扫描频道以检测同步信号。 远程单元在所选择的频道中发送响应信号。 响应信号在与第一选择的时间段不同的第二选定时间段内发送。 此外，远程单元在与包含远程单元的一组功能能力的第一和第二选定时间段不同的第三选定时间段内发送由所选频道中的第一代码编码的第一控制信号。 基本单元接收并解码第一控制信号以导出远程单元的一组功能能力，并将其与其自己的一组功能能力进行比较，以确定一组共同的功能能力。 基站单元在包含公共功能能力集合的第四选定时间段内发送由相同选定频道中的第一代码编码的第二控制信号。 此后，基本单元和远程单元之间的通信基于从公共集合中选择的功能能力。