Patents by Inventor Donald Dorsey
Donald Dorsey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170289960Abstract: A communication circuit arrangement may include a control circuit configured to determine occupied spectrum of one or more cells, identify one or more overlapped uplink center frequencies of target band that overlap with the occupied spectrum of the one or more cells, and select one or more target downlink center frequencies from a plurality of downlink center frequencies of the target band based on whether each of the one or more target downlink center frequencies is paired with an uplink center frequency of the one or more overlapped uplink center frequencies, the communication circuit further including a cell search circuit to perform cell search on the one or more selected target downlink center frequencies.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Inventors: Ahmed Moustafa, Donald Dorsey
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Patent number: 8855596Abstract: Emergency call placement methods and apparatus for a user equipment in a wireless network are disclosed. The placement method includes detecting initiation of an emergency call during a non-idle connection mode of the user equipment (204), terminating the non-idle connection mode (206) and initiating a new connection for the emergency call (208). This method allows the new connection to use a location methodology to locate the user equipment in response to the emergency call. The disclosed wireless user equipment (102, 500) is configured to implement the disclosed method.Type: GrantFiled: December 3, 2004Date of Patent: October 7, 2014Assignee: Motorola Mobility LLCInventors: Sharada Raghuram, Donald A. Dorsey, Rohini Polisetty
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Patent number: 8818359Abstract: A mobile station (MS) is provided that includes one or more memory devices that maintain a RAT preference rule and that include a removable memory device (RMD) that maintains a data file that includes a prioritized listing of one or more PLMN/RAT combinations. The MS detects a RAT and a PLMN broadcasting on that RAT and determines a type of the RMD. When the RMD is a type that would maintain information on the detected RAT, the MS determines a priority of the detected PLMN/RAT combination relative to other PLMN/RAT combinations based solely on the prioritizations included in the data file. When the RMD is a type that would not maintain information on the detected RAT, the MS determines a priority of the detected PLMN and RAT relative to other PLMN/RAT combinations based on the RAT preference rule in conjunction with the listing of PLMN/RAT combinations in the data file.Type: GrantFiled: March 2, 2012Date of Patent: August 26, 2014Assignee: Motorola Mobility LLCInventors: Xiaofeng Bai, Donald A. Dorsey, Sharada Raghuram
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Patent number: 8688166Abstract: A communication device establishes a connection in a congested wireless communications network environment by systematically reducing a probability of attempting to connect to a strongest, but overly-congested, cell. A transceiver of the communications device attempts at least one first Random Access Channel (RACH) procedure with a first cell that is currently designated as a serving cell. A RACH controller of the communications device detects a failure to successfully connect to the first cell via the at least one first RACH procedure, autonomously determines, based at least on a probability value, which is greater than 0% and less than 100%, whether to de-prioritize the first cell for a period of time, and, in response to determining to de-prioritize the first cell, reduces a priority value assigned at the UE to the first cell for cell selection/reselection, and assigns a selected time period during which the priority value remains reduced.Type: GrantFiled: October 17, 2011Date of Patent: April 1, 2014Assignee: Intel CorporationInventors: Vagish Gupta, Satish V. Brahme, Donald A. Dorsey, Jason D. Christensen
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Publication number: 20130231105Abstract: A mobile station (MS) is provided that includes one or more memory devices that maintain a RAT preference rule and that include a removable memory device (RMD) that maintains a data file that includes a prioritized listing of one or more PLMN/RAT combinations. The MS detects a RAT and a PLMN broadcasting on that RAT and determines a type of the RMD. When the RMD is a type that would maintain information on the detected RAT, the MS determines a priority of the detected PLMN/RAT combination relative to other PLMN/RAT combinations based solely on the prioritizations included in the data file. When the RMD is a type that would not maintain information on the detected RAT, the MS determines a priority of the detected PLMN and RAT relative to other PLMN/RAT combinations based on the RAT preference rule in conjunction with the listing of PLMN/RAT combinations in the data file.Type: ApplicationFiled: March 2, 2012Publication date: September 5, 2013Applicant: Motorola Mobility, Inc.Inventors: Xiaofeng Bai, Donald A. Dorsey, Sharada Raghuram
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Publication number: 20130095879Abstract: A communication device establishes a connection in a congested wireless communications network environment by systematically reducing a probability of attempting to connect to a strongest, but overly-congested, cell. A transceiver of the communications device attempts at least one first Random Access Channel (RACH) procedure with a first cell that is currently designated as a serving cell. A RACH controller of the communications device detects a failure to successfully connect to the first cell via the at least one first RACH procedure, autonomously determines, based at least on a probability value, which is greater than 0% and less than 100%, whether to de-prioritize the first cell for a period of time, and, in response to determining to de-prioritize the first cell, reduces a priority value assigned at the UE to the first cell for cell selection/reselection, and assigns a selected time period during which the priority value remains reduced.Type: ApplicationFiled: October 17, 2011Publication date: April 18, 2013Applicant: MOTOROLA MOBILITY, INC.Inventors: Vagish Gupta, Satish V. Brahme, Donald A. Dorsey, Jason D. Christensen
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Patent number: 7519365Abstract: A method for a radiotelephone to search for a high priority, home, or home-equivalent public land mobile network (PLMN) includes a first step of registering and camping (300) the radiotelephone on a cell of visited PLMN. A next step includes uniquely identifying (302) the cell. A next step includes searching (304) for PLMNs with a higher priority than the visited PLMN while registered and camped on the uniquely identified cell. A next step includes storing (306) a history of those frequencies found that are not of a higher priority PLMN for the uniquely identified cell. Any subsequent searches for frequencies of higher priority PLMNs performed while registered and camped on that cell includes scanning (308) for available frequencies except for those frequencies listed in the history for the uniquely identified cell in which the radiotelephone is registered and camped.Type: GrantFiled: May 1, 2007Date of Patent: April 14, 2009Assignee: Motorola, IncInventors: Donald A. Dorsey, Sharada Raghuram, Charles P. Binzel
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Publication number: 20080287127Abstract: A wireless device (105) for scheduling a forward access channel measurement occasion (FMO) includes a transmitter (202) to transmit radio signals required to perform random access channel (RACH) transmission (RACHing) and report the results of cell measurements. A receiver receives radio signals required to acquire information blocks, serving cell selection criteria, and measurement rule parameters, and to measure at least one of inter-frequency and inter-radio access technology (inter-RAT) neighbor cells. A scheduling module (212, 214, 216) schedules FMO frames for neighbor cell measurement in order to prioritize FMO frames that collide with a position of an information block or that collide with RACHing.Type: ApplicationFiled: May 15, 2007Publication date: November 20, 2008Applicant: Motorola, Inc.Inventors: Ping Wu, Donald A. Dorsey, Sharada Raghuram
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Patent number: 7418239Abstract: Reselection methods for wireless communication devices, for example cellular telephones, that reduce power consumption by receiving periodic paging information (210) concurrently with the performance of periodic signal measurements (230) and reselection processing (250) to increase minimal power consumption mode operation. In some embodiment, the reselection processing (252) is performed on prior signal measurements (230) while obtaining present signal measurement data (240).Type: GrantFiled: February 13, 2002Date of Patent: August 26, 2008Assignee: Motorola Inc.Inventors: Steve Brandt, Donald Dorsey
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Publication number: 20080049755Abstract: A method and system for optimizing a Quality of Service (QoS) for an application is provided. The method comprises generating (205) a dynamic database (110 or 150) of statistical information regarding at least one of the applications and one or more communication network (115, 120 and 125). Further, the method comprises selecting (210) the application to operate on the communication network. The dynamic database is then analyzed (215) to determine at least one network configuration based on desired QoS requirement. Based on the analysis of at least one network configuration a connection (220) is made to the requested application.Type: ApplicationFiled: August 25, 2006Publication date: February 28, 2008Applicant: MOTOROLA, INC.Inventors: Mark A. Gannon, Rod N. Averbuch, Donald A. Dorsey, Barry J. Menich, Kenneth J. Zdunek
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Patent number: 7333795Abstract: An emergency call placement method (300) used in user equipment in idle mode camped on a first cell of a wireless communication network having a first radio access technology includes the steps of requesting (316) a radio resource control connection using “emergency call” as an establishment request, changing (340, 350) to a new cell in a different location area or routing area than the first cell, and requesting again (316) a radio resource control connection using “emergency call” as an establishment request. This method avoids performing a location area update or a routing area update when the user equipment changes to a new cell during an emergency call and thus may speed up placement of the emergency call by several seconds.Type: GrantFiled: October 24, 2003Date of Patent: February 19, 2008Assignee: Motorola Inc.Inventors: Donald A. Dorsey, Srikrishna M R, Sharada Raghuram
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Publication number: 20070202875Abstract: A method for a radiotelephone to search for a high priority, home, or home-equivalent public land mobile network (PLMN) includes a first step of registering and camping (300) the radiotelephone on a cell of visited PLMN. A next step includes uniquely identifying (302) the cell. A next step includes searching (304) for PLMNs with a higher priority than the visited PLMN while registered and camped on the uniquely identified cell. A next step includes storing (306) a history of those frequencies found that are not of a higher priority PLMN for the uniquely identified cell. Any subsequent searches for frequencies of higher priority PLMNs performed while registered and camped on that cell includes scanning (308) for available frequencies except for those frequencies listed in the history for the uniquely identified cell in which the radiotelephone is registered and camped.Type: ApplicationFiled: May 1, 2007Publication date: August 30, 2007Applicant: MOTOROLA, INC.Inventors: DONALD DORSEY, SHARADA RAGHURAM, CHARLES BINZEL
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Patent number: 7231213Abstract: While engaged in a dedicated channel, a User Equipment (UE) may get stuck on it. A method and the computer program product detects whether the UE is stuck on the dedicated channel (202). When it is detected that the UE is stuck, the UE or the corresponding network in which the dedicated channel is located carries out a local release of the UE from the dedicated channel (204), and the UE is placed in idle mode (206). Locally releasing the UE from the dedicated channel curtails unnecessary battery consumption in the UE and limits wastage of network resources and bandwidth.Type: GrantFiled: June 30, 2005Date of Patent: June 12, 2007Assignee: Motorola Inc.Inventors: Donald A. Dorsey, Ravi Gopalakrishnan, Chandra K. Punyapu, Padmaja Putcha, Sharada Raghuram, Li Su, Ramesh Sudini
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Publication number: 20070004417Abstract: While engaged in a dedicated channel, a User Equipment (UE) may get stuck on it. A method and the computer program product detects whether the UE is stuck on the dedicated channel (202). When it is detected that the UE is stuck, the UE or the corresponding network in which the dedicated channel is located carries out a local release of the UE from the dedicated channel (204), and the UE is placed in idle mode (206). Locally releasing the UE from the dedicated channel curtails unnecessary battery consumption in the UE and limits wastage of network resources and bandwidth.Type: ApplicationFiled: June 30, 2005Publication date: January 4, 2007Inventors: Donald Dorsey, Ravi Gopalakrishnan, Chandra Punyapu, Padmaja Putcha, Sharada Raghuram, Li Su, Ramesh Sudini
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Publication number: 20070004445Abstract: An apparatus and method of cell selection in a wireless network for a device operating on a serving cell. A quality threshold is received. A selected radio access technology is prioritized for reselection if at least one radio access technology neighbor cell meets basic criteria for a suitable cell and a computed value of a signal quality suitability criterion of the radio access technology neighbor cell exceeds the quality threshold.Type: ApplicationFiled: June 29, 2005Publication date: January 4, 2007Inventors: Donald Dorsey, Steve Brandt, Sharada Raghuram
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Publication number: 20060121877Abstract: Emergency call placement methods and apparatus for a user equipment in a wireless network are disclosed. The placement method includes detecting initiation of an emergency call during a non-idle connection mode of the user equipment (204), terminating the non-idle connection mode (206) and initiating a new connection for the emergency call (208). This method allows the new connection to use a location methodology to locate the user equipment in response to the emergency call. The disclosed wireless user equipment (102, 500) is configured to implement the disclosed method.Type: ApplicationFiled: December 3, 2004Publication date: June 8, 2006Applicant: Motorola, Inc.Inventors: Sharada Raghuram, Donald Dorsey, Rohini Polisetty
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Publication number: 20060009187Abstract: A multi-mode mobile wireless communications device architecture (200) including an application layer (210), a services layer (220) interfacing the applications layer, a multi-mode layer (230) interfacing the service layer, and a hardware layer (240) interfacing the multi-mode layer. The multi-mode layer includes first and second interoperable radio access technologies, for example W-CDMA UMTS and GSM/GPRS technologies.Type: ApplicationFiled: June 28, 2005Publication date: January 12, 2006Inventors: Arnold Sheynman, Carl Grube, Rajendra Kosgi, Rohini Polisetty, Mahesh Perepa, Maloor Sreekrishna, Krishnamurthy Vijayaprasad, Sharada Raghuram, Donald Dorsey, Kevin Spriggs, Ramesh Sudini
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Publication number: 20060003800Abstract: A Multi-mode mobile wireless communications device architecture (200) including an application layer (210), a services layer (220) interfacing the applications layer, a multi-mode layer (230) interfacing the service layer, and a hardware layer (240) interfacing the multi-mode layer. The multi-mode layer includes first and second interoperable radio access technologies, for example W-CDMA UMTS and GSM/GPRS technologies.Type: ApplicationFiled: June 28, 2005Publication date: January 5, 2006Inventors: Arnold Sheynman, Carl Grube, Rajendra Kosgi, Rohini Polisetty, Mahesh Perepa, Maloor Sreekrishna, Krishnamurthy Vijayaprasad, Sharada Raghuram, Donald Dorsey, Kevin Spriggs, Ramesh Sudini
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Patent number: 6961569Abstract: A method for a radiotelephone to scan for a higher priority (including home) public land mobile network (PLMN) without searching in all possible RATs and frequencies includes a first step of establishing an inclusive list of all frequencies in all radio access technologies (RATs) in use by the higher priority or home public land mobile network. A next step includes camping the radiotelephone on the higher priority or home PLMN. A next step includes obtaining the inclusive list from the establishing step by the camped radiotelephone from the higher priority or home PLMN. Afterwards, when the radiotelephone roams to a lower priority visited PLMN, it can begin scanning for the home (and higher priority) PLMN using only those frequencies from the inclusive list, thereby saving battery power.Type: GrantFiled: May 7, 2003Date of Patent: November 1, 2005Assignee: Motorola IncInventors: Sharada Raghuram, Richard C. Burbidge, Donald A. Dorsey
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Publication number: 20050148349Abstract: A method in a wireless communications device, including selecting (210) a cell, and after selection, configuring (230) the wireless communications device for a paging channel of a cell camped on previously using system information obtained for the cell camped on previously whether or not the selected cell is the same as the cell camped on previously. In some embodiments, updated system information is obtained for the selected cell if the selected cell is the same as the cell camped on previously, and the paging channel is reconfigured (250) based upon any updated system information obtained for the selected cell. In other embodiments, system information is obtained for the selected cell while the wireless communications device is configured for the paging channel of the cell camped on previously.Type: ApplicationFiled: December 19, 2003Publication date: July 7, 2005Inventors: Padmaja Putcha, Steve Brandt, Donald Dorsey, Rohini Polisetty, Sharada Raghuram