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公开(公告)号：BRPI0715665A2
公开(公告)日：2013-07-02
申请号：BRPI0715665
申请日：2007-08-28
Applicant: QUALCOMM INC
Inventor： AMERGA MESSAY , SINGH GURDEEP , RAO ANIL , CHIKKAPPA KIRAN , KUMAR CHANDRA , GOLLAMUDI MAHEEDHAR , KESHAVA SUDARSHAN
Abstract: An access terminal (102) reacquires a system frame number (SFN) when a difference between a continuous counter elapsed time (220) and a calculated elapsed time (222) exceeds a threshold. The continuous counter elapsed time (220) is generated by a continuous counter (122) remaining active during a sleep state of the access terminal (102) and the calculated elapsed time (222) is based on a SFN derived from a counter value generated by a discontinuous counter (124) that is deactivated during the sleep state. In one aspect, the continuous counter (122) may be clocked by a continuous clock (118) during a sleep mode and the discontinuous counter (124) may be clocked by a faster clock (120) that is deactivated during the sleep mode. During reactivation after the sleep mode, the discontinuous counter (120) is set, at the counter set time, to a reset counter value (126) corresponding to an SFN indicated by the continuous counter (122).
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公开(公告)号：AT489774T
公开(公告)日：2010-12-15
申请号：AT07841499
申请日：2007-08-28
Applicant: QUALCOMM INC
Inventor： AMERGA MESSAY , SINGH GURDEEP , RAO ANIL , CHIKKAPPA KIRAN , KUMAR CHANDRA , GOLLAMUDI MAHEEDHAR , KESHAVA SUDARSHAN
Abstract: An access terminal (102) reacquires a system frame number (SFN) when a difference between a continuous counter elapsed time (220) and a calculated elapsed time (222) exceeds a threshold. The continuous counter elapsed time (220) is generated by a continuous counter (122) remaining active during a sleep state of the access terminal (102) and the calculated elapsed time (222) is based on a SFN derived from a counter value generated by a discontinuous counter (124) that is deactivated during the sleep state. In one aspect, the continuous counter (122) may be clocked by a continuous clock (118) during a sleep mode and the discontinuous counter (124) may be clocked by a faster clock (120) that is deactivated during the sleep mode. During reactivation after the sleep mode, the discontinuous counter (120) is set, at the counter set time, to a reset counter value (126) corresponding to an SFN indicated by the continuous counter (122).
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公开(公告)号：AU2007244719B2
公开(公告)日：2010-10-21
申请号：AU2007244719
申请日：2007-04-29
Applicant: QUALCOMM INC
Inventor： CHIKKAPPA KIRAN , RAMACHANDRAN VIVEK , MAHESHWARI SHAILESH
IPC: H04L29/06
Abstract: Techniques for sending information without interruption during a change in ciphering configuration are described. A user equipment (UE) communicates with a wireless communication network for a call. The UE sends first information to the wireless network using a first ciphering configuration. For a change in ciphering configuration, the UE selects an activation time for a second ciphering configuration and sends a security message with the activation time. This activation time is the time at which the UE applies the second ciphering configuration to transmission sent to the wireless network. The UE thereafter sends second information (e.g., a measurement report message) using the first ciphering configuration after sending the security message and before the activation time. The UE sends third information using the second ciphering configuration after the activation time.
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公开(公告)号：CA2699086A1
公开(公告)日：2009-04-09
申请号：CA2699086
申请日：2008-10-01
Applicant: QUALCOMM INC
Inventor： UMATT BHUPESH MANOHARLAL , CHIKKAPPA KIRAN , MITTAL VINEET
Abstract: Techniques for performing system searches to find a suitable cell to receive full service while camped on a cell with limited service are described. Initially, a user equipment (UE) may camp on a first cell and receive limited service. The UE may perform a system search in background to find a suitable cell to receive full service. By performing the system search in background, the UE can receive pag-ing messages and perform cell reselection and/or other tasks while the system search is pending and may also be able to obtain limited service with little or no delay when requested by a user. The UE may suspend the system search prior to each paging occasion, receive paging mes-sages applicable for the UE, and then resume the system search. The UE may receive a request for limited service (e.g., emergency call), suspend or abort the system search, and obtain the requested limited service.
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Patent Agency Ranking
公开(公告)号：CA2660046A1
公开(公告)日：2008-03-06
申请号：CA2660046
申请日：2007-08-28
Applicant: QUALCOMM INC
Inventor： KUMAR CHANDRA , RAO ANIL , SINGH GURDEEP , KESHAVA SUDARSHAN , AMERGA MESSAY , GOLLAMUDI MAHEEDHAR , CHIKKAPPA KIRAN
Abstract: An access terminal (102) reacquires a system frame number (SFN) when a di fference between a continuous counter elapsed time (220) and a calculated el apsed time (222) exceeds a threshold. The continuous counter elapsed time (2 20) is generated by a continuous counter (122) remaining active during a sle ep state of the access terminal (102) and the calculated elapsed time (222) is based on a SFN derived from a counter value generated by a discontinuous counter (124) that is deactivated during the sleep state. In one aspect, the continuous counter (122) may be clocked by a continuous clock (118) during a sleep mode and the discontinuous counter (124) may be clocked by a faster clock (120) that is deactivated during the sleep mode. During reactivation a fter the sleep mode, the discontinuous counter (120) is set, at the counter set time, to a reset counter value (126) corresponding to an SFN indicated b y the continuous counter (122).
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公开(公告)号：CA2644291A1
公开(公告)日：2007-11-08
申请号：CA2644291
申请日：2007-04-29
Applicant: QUALCOMM INC
Inventor： RAMACHANDRAN VIVEK , CHIKKAPPA KIRAN , MAHESHWARI SHAILESH
IPC: H04L29/06
Abstract: Techniques for sending information without interruption during a change in ciphering configuration are described. A user equipment (UE) communicates with a wireless communication network for a call. The UE sends first information to the wireless network using a first ciphering configuration. For a change in ciphering configuration, the UE selects an activation time for a second ciphering configuration and sends a security message with the activation time. This activation time is the time at which the UE applies the second ciphering configuration to transmission sent to the wireless network. The UE thereafter sends second information (e.g., a measurement report message) using the first ciphering configuration after sending the security message and before the activation time. The UE sends third information using the second ciphering configuration after the activation time.
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公开(公告)号：AU2007244719A1
公开(公告)日：2007-11-08
申请号：AU2007244719
申请日：2007-04-29
Applicant: QUALCOMM INC
Inventor： CHIKKAPPA KIRAN , RAMACHANDRAN VIVEK , MAHESHWARI SHAILESH
IPC: H04L29/06
Abstract: Techniques for sending information without interruption during a change in ciphering configuration are described. A user equipment (UE) communicates with a wireless communication network for a call. The UE sends first information to the wireless network using a first ciphering configuration. For a change in ciphering configuration, the UE selects an activation time for a second ciphering configuration and sends a security message with the activation time. This activation time is the time at which the UE applies the second ciphering configuration to transmission sent to the wireless network. The UE thereafter sends second information (e.g., a measurement report message) using the first ciphering configuration after sending the security message and before the activation time. The UE sends third information using the second ciphering configuration after the activation time.
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公开(公告)号：CA2644291C
公开(公告)日：2017-02-14
申请号：CA2644291
申请日：2007-04-29
Applicant: QUALCOMM INC
Inventor： MAHESHWARI SHAILESH , CHIKKAPPA KIRAN , RAMACHANDRAN VIVEK
IPC: H04L29/06
Abstract: Techniques for sending information without interruption during a change in ciphering configuration are described. A user equipment UE (110) communicates with a wireless communication network for a call. The UE sends first information to the wireless network using a first ciphering configuration (612). For a change in ciphering configuration, the UE selects an activation time for a second ciphering configuration (614) and sends a security message with the activation time (616). This activation time is the time at which the UE applies the second ciphering configuration to transmission sent to the wireless network. The UE thereafter sends second information, e.g., a measurement report message) using the first ciphering configuration after sending the security message and before the activation time (618). The UE sends third information using the second ciphering configuration after the activation time (622).
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公开(公告)号：BRPI0710828A2
公开(公告)日：2011-05-24
申请号：BRPI0710828
申请日：2007-04-29
Applicant: QUALCOMM INC
Inventor： MAHESHWARI SHAILESH , CHIKKAPPA KIRAN , RAMACHANDRAN VIVEK
IPC: H04L29/06
Abstract: Techniques for sending information without interruption during a change in ciphering configuration are described. A user equipment (UE) communicates with a wireless communication network for a call. The UE sends first information to the wireless network using a first ciphering configuration. For a change in ciphering configuration, the UE selects an activation time for a second ciphering configuration and sends a security message with the activation time. This activation time is the time at which the UE applies the second ciphering configuration to transmission sent to the wireless network. The UE thereafter sends second information (e.g., a measurement report message) using the first ciphering configuration after sending the security message and before the activation time. The UE sends third information using the second ciphering configuration after the activation time.
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