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公开(公告)号：US07450541B2
公开(公告)日：2008-11-11
申请号：US10952970
申请日：2004-09-28
CPC分类号： H04W56/0005 , H04J13/16
摘要： Systems, methods and apparatus for configuring and accessing a random access channel in a CDMA communication system are disclosed. The number of users supported by a random access channel can be optimized by assigning a distinct time of arrival to each of a plurality of users. Each of the users can be time synchronized and can transmit data at a time that compensates for a propagation delay to allow the data to arrive at the destination receiver at the assigned time. In a CDMA system, each of the users can transmit data that is spread with the same spreading code, provided the cross correlation properties of the code are sufficient to allow identification of a source that is time offset relative to another user. The time of arrival can be determined based on the number of active users, and can be assigned as often as each transmission by each user.
摘要翻译： 公开了用于在CDMA通信系统中配置和访问随机接入信道的系统，方法和装置。 可以通过向多个用户中的每一个分配不同的到达时间来优化随机接入信道支持的用户数量。 每个用户可以是时间同步的，并且可以在补偿传播延迟的时间发送数据，以允许数据在分配的时间到达目的地接收机。 在CDMA系统中，如果代码的互相关属性足以允许识别相对于另一个用户的时间偏移的源，那么每个用户可以发送用相同的扩展码扩展的数据。 可以基于活动用户的数量来确定到达时间，并且可以分配给每个用户每次发送的频率。
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公开(公告)号：US08036710B2
公开(公告)日：2011-10-11
申请号：US11047917
申请日：2005-01-31
CPC分类号： H04W52/029 , H04W52/0274 , Y02D70/00
摘要： A power-efficient wireless device is equipped with multiple (N) antennas. Each antenna is associated with a transmitter unit and a receiver unit. The wireless device also has processing units used to perform various digital processing tasks. The transmitter units, receiver units, and processing units may be selectively enabled or disabled. In an idle state, the wireless device may enable only a subset (e.g., one) of the N receiver units and one or few processing units for signal detection and acquisition. For active communication, the wireless device may enable Ntx transmitter units for data transmission and/or Nrx receiver units for data reception, where 1≦Ntx≦N and 1≦Nrx≦N. The enabled processing units may also be clocked at a lower frequency whenever data is transmitted or received at a data rate lower than the highest data rate. The wireless device may go to sleep whenever possible to conserve power.
摘要翻译： 功率高效的无线设备配备有多（N）个天线。 每个天线与发射机单元和接收机单元相关联。 无线设备还具有用于执行各种数字处理任务的处理单元。 可以选择性地启用或禁用发射机单元，接收机单元和处理单元。 在空闲状态下，无线设备可以仅使得N个接收机单元中的子集（例如，一个）和用于信号检测和获取的一个或几个处理单元。 对于主动通信，无线设备可以使Ntx发射机单元用于数据传输和/或Nrx接收机单元用于数据接收，其中1＆nlE; Ntx＆nlE; N和1＆nlE; Nrx＆nlE; N。 每当以低于最高数据速率的数据速率发送或接收数据时，启用的处理单元也可以以更低的频率被计时。 无线设备可能会尽可能地睡眠以节省电力。
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公开(公告)号：US08494531B2
公开(公告)日：2013-07-23
申请号：US11090249
申请日：2005-03-25
摘要： A system and method are provided for creating a picocell service alternate to a wireless network service. The method comprises: detecting a multiple access (MA) wireless communications network, such as a terrestrial or satellite network; and, generating a first picocell in a response to detecting the MA wireless network. Typically, the method comprises receiving requests for picocell service from mobile stations, in response to generating the first picocell. In one aspect, the service requests made by the mobile stations are denied. In another aspect, the method further comprises: establishing a first picocell MSC; and, providing network services to mobile stations via the first picocell, in response to the requests for picocell service. For example, the first picocell MSC may provide the same network services that are provided by a conventional terrestrial network, for example. Alternately, the method establishes an alternative wireless network (a second picocell) to provide services.
摘要翻译： 提供了一种用于创建与无线网络服务交替的微微蜂窝服务的系统和方法。 该方法包括：检测诸如地面或卫星网络的多址（MA）无线通信网络; 以及在检测到MA无线网络的响应中生成第一微微小区。 通常，该方法包括响应于生成第一微微小区而从移动台接收微微小区业务的请求。 一方面，移动台所做的服务请求被拒绝。 在另一方面，该方法还包括：建立第一微微蜂窝MSC; 以及响应于对微微小区服务的请求，经由第一微微小区向移动站提供网络服务。 例如，第一微微小区MSC可以提供例如由传统的陆地网络提供的相同的网络服务。 或者，该方法建立替代无线网络（第二微微小区）来提供服务。
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公开(公告)号：US08165592B2
公开(公告)日：2012-04-24
申请号：US11675541
申请日：2007-02-15
IPC分类号： H04W40/00
摘要： A system and method are provided for creating a picocell service alternate to a wireless network service. The method comprises: detecting a multiple access (MA) wireless communications network, such as a terrestrial or satellite network; and, generating a first picocell in response to detecting the MA wireless network. Typically, the method comprises receiving requests for picocell service from mobile stations, in response to generating the first picocell. In one aspect, the service requests made by the mobile stations are denied. In another aspect, the method further comprises: establishing a first picocell MSC; and, providing network services to mobile stations via the first picocell, in response to the requests for picocell service. For example, the first picocell MSC may provide the same network services that are provided by a conventional terrestrial network, for example. Alternately, the method establishes an alternative wireless network (a second picocell) to provide services.
摘要翻译： 提供了一种用于创建与无线网络服务交替的微微蜂窝服务的系统和方法。 该方法包括：检测诸如地面或卫星网络的多址（MA）无线通信网络; 以及响应于检测到所述MA无线网络而产生第一微微小区。 通常，该方法包括响应于生成第一微微小区而从移动台接收微微小区业务的请求。 一方面，移动台所做的服务请求被拒绝。 在另一方面，该方法还包括：建立第一微微蜂窝MSC; 以及响应于对微微小区服务的请求，经由第一微微小区向移动站提供网络服务。 例如，第一微微小区MSC可以提供例如由传统的陆地网络提供的相同的网络服务。 或者，该方法建立替代无线网络（第二微微小区）来提供服务。
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公开(公告)号：US07929991B2
公开(公告)日：2011-04-19
申请号：US11277916
申请日：2006-03-29
CPC分类号： H04M1/72527 , H04B1/38 , H04M1/6058 , H04M2250/18 , H04W92/08
摘要： A mobile electronic device includes an earphone/microphone port, an I/O circuit to receive a modulated data signal from data input devices via the earphone/microphone port, and a processor unit programmed to extract data from the modulated data signal. The processor unit (or the I/O circuit) detects connection of a device to an earphone/microphone connector of the mobile electronic device and determines whether the connected device is a data input device. If the connected device is a data input device, the processor unit is programmed to extract data from modulated data signals generated by data input device.
摘要翻译： 移动电子设备包括耳机/麦克风端口，经由耳机/麦克风端口从数据输入设备接收调制数据信号的I / O电路，以及被编程为从调制数据信号提取数据的处理器单元。 处理器单元（或I / O电路）检测设备与移动电子设备的耳机/麦克风连接器的连接，并确定连接的设备是否是数据输入设备。 如果连接的设备是数据输入设备，则处理器单元被编程为从由数据输入设备生成的调制数据信号中提取数据。
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