公开(公告)号：DE602007010793D1

公开(公告)日：2011-01-05

申请号：DE602007010793

申请日：2007-08-28

Applicant: QUALCOMM INC

Inventor： AMERGA MESSAY ,  SINGH GURDEEP ,  RAO ANIL ,  CHIKKAPPA KIRAN ,  KUMAR CHANDRA ,  GOLLAMUDI MAHEEDHAR ,  KESHAVA SUDARSHAN

IPC: H04B1/16 ,  H04W52/02 ,  H04W76/04

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

IPC: H04B1/16 ,  H04W52/02 ,  H04W76/04

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).

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

IPC: H04B1/16 ,  C01B17/50 ,  C01B17/74 ,  C01F11/46 ,  H04W52/02 ,  H04W76/04

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).

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

IPC: H04B1/16 ,  H04W52/02 ,  H04W76/04

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).