Abstract: Disclosed is a method and apparatus for utilizing an array of one or more mobile devices to perform a task. The method may include accessing a task to be performed using the array of one or more mobile devices. The task may include user equipment positioning, imaging a real world area, or a combination thereof. The method may also include receiving signals collected by the array of one or more mobile devices while the task is being performed, and determining an uncertainty of a result of the task being performed based, at least in part, on one or more characteristics associated with the array of mobile devices and the task being performed. Furthermore, the method may include adjusting the array of mobile devices to reduce the uncertainty of the result of the task being performed.

Abstract: Disclosed is a method and apparatus for utilizing an array of one or more mobile devices to perform a task. The method may include accessing a task to be performed using the array of one or more mobile devices. The task may include user equipment positioning, imaging a real world area, or a combination thereof. The method may also include receiving signals collected by the array of one or more mobile devices while the task is being performed, and determining an uncertainty of a result of the task being performed based, at least in part, on one or more characteristics associated with the array of mobile devices and the task being performed. Furthermore, the method may include adjusting the array of mobile devices to reduce the uncertainty of the result of the task being performed.

Abstract: In response to an error signal, a pseudo-noise generator (312 or 416) generates an on-time pseudo-noise signal, an early pseudo-noise signal delayed by less than one-half of a chip interval, and a late pseudo-noise signal advanced by less than one-half of a chip interval. A correlator (302 and 304, or 404) correlates a received signal with the early and late pseudo-noise signals to generate the error signal. The combination of the pseudo-noise generator (312 or 416) and the correlator (302 and 304, or 404) creates a loop in which the on-time pseudo-noise signal tracks a received pseudo-noise code more closely than in prior art devices and enables a deinterleave and decode device (210) within the receiver to demodulate the received signal more effectively.

Abstract: An apparatus and method for locking onto a pseudo-noise code in an IS-95 spread spectrum communications system is disclosed. In response to an error signal, a pseudo-noise generator (312 or 416) generates an on-time pseudo-noise signal, an early pseudo-noise signal delayed by less than one-half of a chip interval, and a late pseudo-noise signal advanced by less than one-half of a chip interval. A correlator (302 and 304, or 404) correlates a received signal with the early and late pseudo-noise signals to generate the error signal. The combination of the pseudo-noise generator (312 or 416) and the correlator (302 and 304, or 404) creates a loop in which the on-time pseudo-noise signal tracks a received pseudo-noise code more closely than in prior art devices and enables a deinterleave and decode device (210) within the receiver to demodulate the received signal more effectively.

Abstract: A pseudo-noise generator (516) generates an on-time component, an early component and a late component of a pseudo-noise code signal in response to an error signal. The on-time component is routed to a deinterleave and demodulate device (210) which demodulates and decodes baseband signals from received spread spectrum signals. An adder (518) subtracts the early component from the late component to form a summation signal. A multiplier (520) multiplies the summation with the received signal to form a product signal. An integrator (522) integrates the product signal to form the error signal. The error signal is fed back into the pseudo-noise generator (516) to fine tune the on-time component, the early component and the late component of the pseudo-noise code signal. As a result, a spread spectrum signal is demodulated and decoded using only one correlator (504) instead of two.