公开(公告)号：US08553728B2

公开(公告)日：2013-10-08

申请号：US12248761

申请日：2008-10-09

Applicant: Alex Kuang-Hsuan Tu ,  Robbin D. Hughes ,  Rotem Cooper

Inventor： Alex Kuang-Hsuan Tu ,  Robbin D. Hughes ,  Rotem Cooper

IPC: H04B3/10

CPC classification number: H04W48/16 ,  H04W52/0216 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22

Abstract: Methods, devices and computer program products are disclosed that allow for wireless communication devices to operate more robustly in the slotted mode of operation in the event of network system loss. Specifically, present aspects require the wireless device to move to or remain in the slotted mode of operation as opposed to immediately entering into a system determination/acquisition mode upon failing to acquire an active set pilot during a slotted wake-up. By moving to the slotted mode of operation or providing for additional slotted-wake-ups, a number of attempts at acquiring the active set pilot can be performed before declaring the system as lost, thereby allowing for fading channel conditions to prevail without the need to re-acquire the lost system or otherwise acquire another system. Since the performance of the slotted mode is less power intensive than acquiring or re-acquiring a system, a substantial power savings is realized.

Abstract translation: 公开了方法，设备和计算机程序产品，其允许无线通信设备在网络系统丢失的情况下以更长时间的操作模式更鲁棒地操作。 具体而言，本方面要求无线设备移动到或保持在时隙操作模式，而不是在时隙唤醒期间未能获取活动集导频时立即进入系统确定/获取模式。 通过移动到时隙操作模式或提供额外的时隙唤醒，可以在声明系统丢失之前执行获取主动集合导频的​​许多尝试，从而允许衰落信道条件成为优先，而不需要 重新获取丢失的系统或以其他方式获取另一个系统。 由于开槽模式的性能比获取或重新获取系统的功耗更小，所以实现了大量的功率节省。

公开(公告)号：US08228865B2

公开(公告)日：2012-07-24

申请号：US11400440

申请日：2006-04-07

Applicant: Deepak Khandelwal ,  Amit Gil ,  Rotem Cooper

Inventor： Deepak Khandelwal ,  Amit Gil ,  Rotem Cooper

IPC: H04W4/00

CPC classification number: H04W24/00 ,  H04W4/06 ,  H04W28/18 ,  H04W48/16 ,  H04W84/042 ,  H04W84/12

Abstract: Techniques to efficiently search for a WLAN are described. A terminal receives country information from a wireless wide area network (WWAN), which may be a cellular network or a broadcast network. This country information may be a Mobile Country Code (MCC) that is broadcast by the WWAN. The MCC identifies the country in which the WWAN is deployed. The terminal then performs active scan for a WLAN based on the country information received from the WWAN. For the active scan, the terminal determines a frequency channel and a transmit power level based on the country information. The terminal then transmits a probe request on the frequency channel and at the transmit power level determined based on the country information. The terminal may perform passive scan and/or active scan in accordance with a scan setting.

Abstract translation: 描述了有效搜索WLAN的技术。 终端从无线广域网（WWAN）接收国家信息，无线广域网可以是蜂窝网络或广播网络。 该国家信息可能是由WWAN广播的移动国家代码（MCC）。 MCC标识部署WWAN的国家/地区。 终端然后根据从WWAN接收的国家信息对WLAN进行主动扫描。 对于主动扫描，终端根据国家信息确定频道和发射功率电平。 终端然后在频率信道上以基于国家信息确定的发射功率电平发送探测请求。 终端可以根据扫描设置执行被动扫描和/或主动扫描。

公开(公告)号：US08209332B2

公开(公告)日：2012-06-26

申请号：US11586030

申请日：2006-10-24

Applicant: Don Nielsen Andrus ,  Roy Franklin Quick, Jr. ,  Ramin Rezaiifar ,  Paul E. Bender ,  Rotem Cooper

Inventor： Don Nielsen Andrus ,  Roy Franklin Quick, Jr. ,  Ramin Rezaiifar ,  Paul E. Bender ,  Rotem Cooper

IPC: G06F17/30

CPC classification number: H04W48/16 ,  H04W8/245 ,  Y10S707/99931

Abstract: Techniques for efficient storage and retrieval of Preferred Roaming Lists are disclosed. In one aspect, PRL entries are stored in two tables. One table contains records that are common to two or more PRL entries. Another table stores any information that is unique to a PRL entry, as well as an indicator of which common record is associated with it. The common record is concatenated with the unique information to generate the uncompressed PRL entry. Various other aspects of the invention are also presented. These aspects have the benefit of reducing the memory requirements for storing a PRL. In addition, time required to download the compressed PRL is reduced.

Abstract translation: 公开了用于有效地存储和检索优选漫游列表的技术。 在一个方面，PRL条目存储在两个表中。 一个表包含两个或多个PRL条目通用的记录。 另一个表存储PRL条目唯一的任何信息，以及与其相关联的常见记录的指示符。 公共记录与唯一信息连接以生成未压缩的PRL条目。 还提出了本发明的各种其它方面。 这些方面有利于减少存储PRL的内存需求。 此外，减少了压缩PRL下载所需的时间。

公开(公告)号：US07471659B2

公开(公告)日：2008-12-30

申请号：US10434677

申请日：2003-05-09

Applicant: Sen-Der Huang ,  Don N. Andrus ,  James A. Hutchison ,  Rotem Cooper ,  Simon Turner

Inventor： Sen-Der Huang ,  Don N. Andrus ,  James A. Hutchison ,  Rotem Cooper ,  Simon Turner

IPC: H04B7/216

CPC classification number: H04W48/18 ,  H04W88/06 ,  H04W88/10

Abstract: A system and method for determining 1xEV-DO availability for a packet data call in a wireless device is presented. When the wireless device receives a request to initiate a packet data call, the device determines if it currently has access to a preferred 1xEV-DO channel. The determination can be made by consulting a 1xEV-DO availability list stored in persistent memory on the wireless device. If available, the wireless device originates the packet data call on the 1xEV-DO channel. If the device is using a CDMA system that has 1xEV-DO channels but the availability or usability of those channels are unknown, the device polls the signal strength on the 1xEV-DO channels to determine the best 1xEV-DO channel to use for the packet data call. If no 1xEV-DO channel is available or if none of the available 1xEV-DO channels are usable, then the device originates the packet data call on a CDMA channel.

Abstract translation: 提出了一种用于确定无线设备中分组数据呼叫的1xEV-DO可用性的系统和方法。 当无线设备接收到发起分组数据呼叫的请求时，设备确定其当前是否可以访问优选的1xEV-DO信道。 可以通过咨询存储在无线设备上的持久存储器中的1xEV-DO可用性列表来进行确定。 如果可用，无线设备在1xEV-DO信道上发起分组数据呼叫。 如果设备正在使用具有1xEV-DO信道的CDMA系统，但是这些信道的可用性或可用性是未知的，则设备轮询1xEV-DO信道上的信号强度，以确定用于分组的最佳1xEV-DO信道 数据通话。 如果没有1xEV-DO信道可用，或者如果没有可用的1xEV-DO信道可用，则设备在CDMA信道上发起分组数据呼叫。

公开(公告)号：US20080293402A1

公开(公告)日：2008-11-27

申请号：US11474248

申请日：2006-06-23

Applicant: Rajeev D. Rajan ,  Andrew T. Hunter ,  Rotem Cooper ,  Tomas Galvez Santaella

Inventor： Rajeev D. Rajan ,  Andrew T. Hunter ,  Rotem Cooper ,  Tomas Galvez Santaella

IPC: H04Q7/20

CPC classification number: H04W16/22 ,  H04W24/06

Abstract: A roaming emulator provides a tool for emulating system determination for monitoring the operation of a wireless communication device (WCD) during system determination. A signal monitoring program and service selection protocol are stored, and a signal emulation module provides a signal emulation output in accordance with a predetermined set of data. A processing module performs a simulation of a service selection procedure based on the service selection protocol and performed in accordance with the signal monitoring program and the signal emulation output. A result of the service selection is provided by an output module. The emulator can provide emulated system scanning based on geographical or market location, and can emulate scenarios when channels from neighboring systems or markets “bleed” into the RF environment of the WCD.

Abstract translation: 漫游仿真器提供用于在系统确定期间模拟用于监视无线通信设备（WCD）的操作的系统确定的工具。 存储信号监视程序和服务选择协议，并且信号仿真模块根据预定数据集提供信号仿真输出。 处理模块基于服务选择协议执行服务选择过程的模拟，并且根据信号监视程序和信号仿真输出执行。 服务选择的结果由输出模块提供。 仿真器可以根据地理位置或市场位置提供模拟系统扫描，并可以模拟来自相邻系统或市场的频道“流血”到WCD的RF环境中的情况。

公开(公告)号：US07277704B2

公开(公告)日：2007-10-02

申请号：US11096868

申请日：2005-03-31

Applicant: Rotem Cooper

Inventor： Rotem Cooper

IPC: H04Q7/20

CPC classification number: H04W48/16 ,  H04W24/10 ,  H04W68/00 ,  H04W74/04

Abstract: In a mobile station having an acquired wireless communications system, the mobile station performs preliminary searches for more desirable wireless communications systems in between paging channel and quick paging channel assigned slots, while successfully monitoring the mobile station's assigned slots. The mobile station then analyzes the preliminary search results and attempts to acquire the more desirable wireless communications systems that meets preliminary search criteria. The mobile station includes a communications transceiver that facilitates wireless communications with a local base station and processing circuitry adapted to control a slotted operation mode of the mobile station. The processing circuitry is adapted to instruct the communications transceiver to listen for incoming messages from the acquired communications system during slot modes and listen for candidate communications systems during slot-off modes.

Abstract translation: 在具有获取的无线通信系统的移动站中，移动站在寻呼信道和快速寻呼信道分配的时隙之间进行更期望的无线通信系统的初步搜索，同时成功监视移动台的分配时隙。 然后，移动台分析初步搜索结果，并尝试获取满足初步搜索准则的更理想的无线通信系统。 移动台包括促进与本地基站的无线通信的通信收发器以及适于控制移动台的时隙操作模式的处理电路。 处理电路适于指示通信收发信机在时隙模式期间监听来自获取的通信系统的输入消息，并且在关闭时隙期间侦听候选通信系统。

公开(公告)号：US20070191005A1

公开(公告)日：2007-08-16

申请号：US11352510

申请日：2006-02-10

Applicant: Rotem Cooper ,  Glenn Salaman ,  James Hutchison ,  Robbin Hughes ,  Vanitha Aravamudhan

Inventor： Rotem Cooper ,  Glenn Salaman ,  James Hutchison ,  Robbin Hughes ,  Vanitha Aravamudhan

IPC: H04Q7/20

CPC classification number: H04W48/16 ,  H04W48/20

Abstract: One aspect of the invention provides a system, apparatus and method that allow a wireless communication device to intelligently search for and select a communication cell based on a system identifier (SID) and network identifier (NID) order of preference rather than just pilot signal strength. Generally, a mobile device scans a frequency channel associated with the highest preferred SID/NID for pilot signals at different PN offsets. The cell associated with the strongest pilot signal detected is queried to determine whether it belongs to the SID/NID sought. If the selected PN offset belongs to a cell associated with the SID/NID sought then it is used for communications. Otherwise, the SID/NID identification process is repeated for the next strongest PN offset detected on the same frequency channel. If no pilot signals meeting these criteria are found in the frequency channel, the next highest preferred SID/NID is selected and the process is repeated.

Abstract translation: 本发明的一个方面提供一种系统，装置和方法，其允许无线通信设备基于系统标识符（SID）和网络标识符（NID）优先级顺序智能地搜索和选择通信小区，而不仅仅是导频信号强度 。 通常，移动设备扫描与最高优选SID / NID相关联的频率信道用于不同PN偏移处的导频信号。 查询与检测到的最强导频信号相关联的小区，以确定它是否属于所寻求的SID / NID。 如果选择的PN偏移属于与所寻求的SID / NID相关联的小区，则它被用于通信。 否则，对同一频道上检测到的下一个最强的PN偏移重复SID / NID识别过程。 如果在频道中没有找到符合这些标准的导频信号，则选择下一个较高的优选SID / NID，并重复该过程。

公开(公告)号：US06957068B2

公开(公告)日：2005-10-18

申请号：US10254143

申请日：2002-09-24

Applicant: James A. Hutchison, IV ,  Rotem Cooper ,  Paul T. Williamson

Inventor： James A. Hutchison, IV ,  Rotem Cooper ,  Paul T. Williamson

IPC: H04M1/73 ,  H04W88/06 ,  H04Q7/20

CPC classification number: H04W88/06 ,  H04W52/0229 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/164

Abstract: A system for providing a dynamic multi-mode service acquisition capability to a subscriber station is provided. The subscriber station is capable of operating in two or more modes of operation. A time to scan condition is indicated while the subscriber station is operating in a current mode of operation having active and inactive states. Responsive thereto, the system stores state information for the current mode of operation, and attempts at least a partial acquisition of communications services in accordance with another mode of operation. The at least partial acquisition attempt is scheduled to be initiated while the subscriber station is operating in the inactive state in the current mode of operation, and completed before the subscriber station transitions back to the active state in the current mode of operation. If the acquisition attempt is successful, the subscriber station transitions to the new mode of operation, maintaining appropriate registration. If unsuccessful, the subscriber station uses the stored state information to resume operating in the current mode of operation.

Abstract translation: 提供了一种用于向订户站提供动态多模式服务获取能力的系统。 用户台能够在两种或更多种操作模式下操作。 当用户站在具有活动和非活动状态的当前操作模式下操作时，指示扫描条件的时间。 响应于此，系统存储当前操作模式的状态信息，并且尝试根据另一操作模式至少部分地获取通信服务。 当用户站在当前操作模式下处于非活动状态时，调度至少部分获取尝试，并且在用户站在当前操作模式中转换到活动状态之前完成。 如果采集尝试成功，则用户站转换到新的操作模式，保持适当的注册。 如果不成功，则用户台使用存储的状态信息在当前操作模式下恢复运行。

公开(公告)号：US06934544B2

公开(公告)日：2005-08-23

申请号：US10138991

申请日：2002-05-02

Applicant: Rotem Cooper ,  Yugandhar Chiniga

Inventor： Rotem Cooper ,  Yugandhar Chiniga

IPC: H04L12/56 ,  H04W28/18 ,  H04W48/16 ,  H04W48/18 ,  H04Q7/20

CPC classification number: H04W48/18 ,  H04W28/18 ,  H04W48/16

Abstract: A mobile station includes client circuitry for facilitating wireless communications with a wireless communications system, and a configurable system selection unit that executes a system selection and acquisition procedure. The configurable system selection unit includes a front end and a system selection core. The front end facilitates communications between the configurable system selection unit and the client circuitry. The system selection core is coupled to the front end and includes a script engine and a nonvolatile memory storing at least one script table. The script table includes a plurality of system selection event conditions and corresponding scripts that define a system selection and acquisition procedure. The script engine is adapted to detect an event condition and execute the corresponding script. The system selection core is adapted to receive a system selection script and store the received script in the script table, thereby altering the system selection and acquisition procedure.

Abstract translation: 移动站包括用于促进与无线通信系统的无线通信的客户端电路以及执行系统选择和获取过程的可配置系统选择单元。 可配置系统选择单元包括前端和系统选择核心。 前端促进可配置系统选择单元和客户端电路之间的通信。 系统选择核心耦合到前端，并且包括脚本引擎和存储至少一个脚本表的非易失性存储器。 脚本表包括多个系统选择事件条件和定义系统选择和获取过程的相应脚本。 脚本引擎适用于检测事件条件并执行相应的脚本。 系统选择核心适于接收系统选择脚本并将所接收的脚本存储在脚本表中，从而改变系统选择和获取过程。

公开(公告)号：US20050170832A1

公开(公告)日：2005-08-04

申请号：US11096868

申请日：2005-03-31

Applicant: Rotem Cooper

Inventor： Rotem Cooper

IPC: H04L12/56 ,  H04W24/00 ,  H04W48/16 ,  H04W74/00 ,  H04W74/04 ,  H04Q7/20

CPC classification number: H04W48/16 ,  H04W24/10 ,  H04W68/00 ,  H04W74/04

Abstract: In a mobile station having an acquired wireless communications system, the mobile station performs preliminary searches for more desirable wireless communications systems in between paging channel and quick paging channel assigned slots, while successfully monitoring the mobile station's assigned slots. The mobile station then analyzes the preliminary search results and attempts to acquire the more desirable wireless communications systems that meets preliminary search criteria. The mobile station includes a communications transceiver that facilitates wireless communications with a local base station and processing circuitry adapted to control a slotted operation mode of the mobile station. The processing circuitry is adapted to instruct the communications transceiver to listen for incoming messages from the acquired communications system during slot modes and listen for candidate communications systems during slot-off modes.

Abstract translation: 在具有获取的无线通信系统的移动站中，移动站在寻呼信道和快速寻呼信道分配的时隙之间进行更期望的无线通信系统的初步搜索，同时成功监视移动台的分配时隙。 然后，移动台分析初步搜索结果，并尝试获取满足初步搜索准则的更理想的无线通信系统。 移动台包括促进与本地基站的无线通信的通信收发器以及适于控制移动台的时隙操作模式的处理电路。 处理电路适于指示通信收发信机在时隙模式期间监听来自获取的通信系统的输入消息，并且在关闭时隙期间侦听候选通信系统。