公开(公告)号：US07962135B2

公开(公告)日：2011-06-14

申请号：US10043695

申请日：2002-01-10

Applicant: Rotem Cooper

Inventor： Rotem Cooper

IPC: H04W4/00

CPC classification number: H04W48/18 ,  H04W60/00 ,  H04W74/00

Abstract: A mobile station is adapted to avoid unusable wireless communications systems during system acquisition. The mobile station includes processing circuitry and a memory storing a preferred roaming list and system avoidance data. The system avoidance data identifies unusable systems and includes corresponding avoidance criteria. The processing circuitry is adapted to select a system from the preferred roaming list in accordance with a predetermined system acquisition procedure. The selected system is skipped if corresponding avoidance criteria is satisfied. If the selected system is usable, the mobile station may attempt to acquire and register with the selected system. The processing circuitry is further adapted to add systems to the system avoidance data in response to a communications failure, and remove systems from the system avoidance data when corresponding avoidance criteria is no longer satisfied. The avoidance criteria may include a time period during which the corresponding system is unusable.

Abstract translation: 移动台适于在系​​统采集期间避免不可用的无线通信系统。 移动站包括处理电路和存储优选漫游列表和系统避免数据的存储器。 系统避免数据标识不可用的系统，并包括相应的避免标准。 处理电路适于根据预定的系统获取过程从优选漫游列表中选择系统。 如果满足相应的回避标准，则跳过所选系统。 如果所选择的系统是可用的，则移动台可以尝试获取并注册所选择的系统。 处理电路还适于将系统添加到响应于通信故障的系统避免数据，并且当相应的避免标准不再满足时，从系统避免数据中移除系统。 避免标准可以包括相应系统不可用的时间段。

公开(公告)号：US20090059845A1

公开(公告)日：2009-03-05

申请号：US12181116

申请日：2008-07-28

Applicant: Rotem Cooper ,  Aamod Khandekar ,  Michael Mao Wang ,  Karthik Anantharaman

Inventor： Rotem Cooper ,  Aamod Khandekar ,  Michael Mao Wang ,  Karthik Anantharaman

IPC: H04W48/18

CPC classification number: H04L27/0012 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/0008 ,  H04L27/2613 ,  H04L27/2647

Abstract: Techniques for performing system selection and acquisition are described. In one design, a terminal may obtain at least one system record for at least one system utilizing orthogonal frequency division multiplexing (OFDM) or single-carrier frequency division multiplexing (SC-FDM). Each system record may include system identification information for an associated system and an index for an associated acquisition record. The terminal may also obtain at least one acquisition record for the at least one system. Each acquisition record may include at least one value for at least one configurable system parameter, e.g., FFT size, cyclic prefix length, number of guard subcarriers, etc. The terminal may perform acquisition for the at least one system in accordance with the at least one system record and the at least one acquisition record. The system and acquisition records may be stored in a Preferred Roaming List (PRL) or a Most Recently Used (MRU) list.

Abstract translation: 描述了执行系统选择和采集的技术。 在一种设计中，终端可以使用正交频分复用（OFDM）或单载波频分复用（SC-FDM）来为至少一个系统获得至少一个系统记录。 每个系统记录可以包括关联系统的系统识别信息和关联采集记录的索引。 终端还可以获得至少一个系统的至少一个采集记录。 每个采集记录可以包括用于至少一个可配置系统参数的至少一个值，例如FFT大小，循环前缀长度，保护子载波数量等。终端可以至少根据至少一个系统执行对至少一个系统的采集 一个系统记录和至少一个采集记录。 系统和采集记录可以存储在首选漫游列表（PRL）或最近使用（MRU）列表中。

公开(公告)号：US20060286977A1

公开(公告)日：2006-12-21

申请号：US11217925

申请日：2005-08-31

Applicant: Deepak Khandelwal ,  Selvaraj Jaikumar ,  Nobuyuki Uchida ,  Rotem Cooper

Inventor： Deepak Khandelwal ,  Selvaraj Jaikumar ,  Nobuyuki Uchida ,  Rotem Cooper

IPC: H04Q7/20

CPC classification number: H04W48/18 ,  H04L63/0442 ,  H04L63/0823 ,  H04L63/166 ,  H04Q2213/13098 ,  H04Q2213/13103 ,  H04Q2213/13216 ,  H04Q2213/13282 ,  H04W8/22 ,  H04W12/02 ,  H04W12/06 ,  H04W84/042 ,  H04W84/12 ,  H04W88/02 ,  H04W88/06

Abstract: A preferred roaming list (PRL) carries system and acquisition records for wireless wide area network (WWAN) systems and wireless local area network (WLAN) systems. New system and acquisition records may be defined for WLAN. The PRL and system and acquisition records may be defined to be backward compatible with TIA-683-C. System and acquisition information for WLAN systems may be stored in the new system and acquisition records, respectively. Information used to perform encryption and/or authentication for WLAN systems may be stored in a separate WLAN authentication profile table. The system record for each WLAN system indicates a acquisition record and a profile record for that WLAN system. A network identifier table may also carry system records and profile records for WLAN systems. The system records carry information used for WLAN system selection and acquisition. The profile records carry information used to perform encryption and/or authentication for WLAN systems.

公开(公告)号：US06904282B2

公开(公告)日：2005-06-07

申请号：US09991070

申请日：2001-11-16

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. The preliminary searches include performing tests on the signal received on a candidate communications system channel. The tests may include measuring the signal strength, calculating the ratio Ec/Io and demodulating a synchronization signal.

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。 初步搜索包括对在候选通信系统信道上接收到的信号进行测试。 这些测试可以包括测量信号强度，计算比率E和解调同步信号。

公开(公告)号：US06535751B1

公开(公告)日：2003-03-18

申请号：US09413077

申请日：1999-10-05

Applicant: Rotem Cooper

Inventor： Rotem Cooper

IPC: H04Q720

CPC classification number: H04M1/274575 ,  H04W8/26 ,  H04W76/10

Abstract: A call origination scheme (300) for a wireless telephone lists the number of silent redials to make (302), preferred mode (analog, digital, and so on) (304), and so on. Each telephone number which can be dialed by the wireless telephone is associated (102) with a scheme, and data representative of this association (104) are stored in the telephone. When a number is entered into the telephone (106), as be depressing a sequence of keys on a keypad, the telephone determines (108) the scheme associated with that number and places the call (110) according to that scheme.

Abstract translation: （302），优选模式（模拟，数字等）（304）等的无声电话的呼叫始发方案（300）列出无声重拨的数量。 可以由无线电话拨打的每个电话号码与方案相关联（102），代表该关联的数据（104）被存储在电话机中。 当一个号码被输入到电话机106中时，按下键盘上的一系列键，电话机确定（108）与该号码相关联的方案，并根据该方案发出呼叫（110）。

公开(公告)号：US08345646B2

公开(公告)日：2013-01-01

申请号：US11502216

申请日：2006-08-09

Applicant: Don Nielsen Andrus ,  James A. Hutchison ,  Rotem Cooper ,  Vikas Gupta

Inventor： Don Nielsen Andrus ,  James A. Hutchison ,  Rotem Cooper ,  Vikas Gupta

IPC: H04W72/00 ,  H04W4/00

CPC classification number: H04L61/2038 ,  H04L29/12254 ,  H04L67/14 ,  H04W8/26 ,  H04W76/11

Abstract: The access terminal is configured to wirelessly send to a data system a request that the data system assign an access terminal identifier (ATI) to the access terminal. The access terminal delays transmission of the request until after a user of the access terminal has employed the access terminal to request a packet data service from the data system. In some instances, the data system is an Evolution, Data Only (EV-DO) system and the access terminal identifier (ATI) is a Unicast Access Terminal Identifier (UATI) generated by the Evolution, Data Only (EV-DO) system.

Abstract translation: 接入终端被配置为向数据系统无线地发送数据系统向接入终端分配接入终端标识符（ATI）的请求。 接入终端延迟请求的发送，直到接入终端的用户已经使用接入终端从数据系统请求分组数据服务为止。 在某些情况下，数据系统是一种Evolution（仅数据）数据（EV-DO）系统，而接入终端标识符（ATI）是由Evolution，Data-only（EV-DO）系统生成的单播接入终端标识符（UATI）。

公开(公告)号：US20100091643A1

公开(公告)日：2010-04-15

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: G06F11/00 ,  H04J3/14

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：US07657261B2

公开(公告)日：2010-02-02

申请号：US11352510

申请日：2006-02-10

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

Inventor： Rotem Cooper ,  Glenn Salaman ,  James A. Hutchison ,  Robbin D. 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：US07542451B2

公开(公告)日：2009-06-02

申请号：US10607966

申请日：2003-06-27

Applicant: Rotem Cooper ,  Alejandro Holcman ,  Andrew T. Hunter ,  Edward G. Tiedemann ,  Nobuyuki Uchida ,  Vera Kripalani

Inventor： Rotem Cooper ,  Alejandro Holcman ,  Andrew T. Hunter ,  Edward G. Tiedemann ,  Nobuyuki Uchida ,  Vera Kripalani

IPC: H04B7/216

CPC classification number: H04W8/26 ,  H04W8/183 ,  H04W48/08 ,  H04W48/16 ,  H04W48/18 ,  H04W74/00

Abstract: A network operator identifier is used to uniquely identify each network operator to support international roaming. The network operator identifier includes (1) a Mobile Country Code (MCC) that identifies the country in which a network operator belongs and (2) a Network Operator Code (NOC), which may be a Mobile Network Code (MNC), that distinguishes network operators within a given MCC. Each network operator is assigned a unique combination of MCC and NOC that distinctly identifies the network operator, and the network operator identifier can be stored in a single entry in a preferred roaming list. The base stations of each network operator broadcast the network operator identifier in signaling messages. A mobile station receives a signaling message from a base station, obtains the network operator identifier, searches its preferred roaming list for an entry with the network operator identifier, and determines whether or not the current CDMA network is accessible.

Abstract translation: 网络运营商标识符用于唯一标识每个网络运营商以支持国际漫游。 网络运营商标识符包括（1）识别网络运营商所属国家的移动国家代码（MCC）和（2）可能是移动网络代码（MNC）的网络运营商代码（NOC），其区分 指定MCC内的网络运营商。 为每个网络运营商分配MCC和NOC的唯一组合，其明确地标识网络运营商，并且网络运营商标识符可以存储在优选漫游列表中的单个条目中。 每个网络运营商的基站在信令消息中广播网络运营商标识符。 移动台从基站接收信令消息，获取网络运营商标识符，在其首选漫游列表中搜索具有网络运营商标识符的条目，并确定当前的CDMA网络是否可访问。

公开(公告)号：US20070237121A1

公开(公告)日：2007-10-11

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: H04Q7/24

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。