Frequency correction and time slot boundary detection
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsSajal Kumar Das, Balasubramanian Krishnamurthi
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Abstract
There is provided a method for determining frequency correction and time slot boundary detection for synchronization in a wireless device. A plurality of cell broadcast frequencies is acquired. A subgroup of cell broadcast frequencies is determined from the received plurality of cell broadcast frequencies. Frequency and time slot information in the subgroup is recovered by tuning a local oscillator to a center frequency of the subgroup. Individual frequencies are extracted from the recovered frequency information. The individual frequencies are provided to a frequency correction detector. A corresponding wireless device, computer program and computer program product are also provided.
Claims15
A method for determining frequency correction and time slot boundary detection for synchronization in a wireless device, the method being performed in said wireless device, comprising:
- acquiring a plurality of cell broadcast frequencies;
- determining a subgroup of cell broadcast frequencies from said received plurality of cell broadcast frequencies;
- recovering frequency and time slot information in said subgroup by tuning a local oscillator to a center frequency of said subgroup;
- extracting individual frequencies from said recovered frequency information;
- and
- providing said individual frequencies to a frequency correction detector.
A wireless device for determining frequency correction and synchronization in the wireless device, comprising:
- a receiver arranged to acquire a plurality of cell broadcast frequencies;
- and
- a processing unit arranged to:
- determine a subgroup of cell broadcast frequencies from said received plurality of cell broadcast frequencies;
- recover frequency and time slot information in said subgroup by tuning a local oscillator to a center frequency of said subgroup;
- extract individual frequencies from said recovered frequency information;
- and
- provide said individual frequencies to a frequency correction detector.
A nontransitory computer readable storage medium comprising a computer program for determining frequency correction and synchronization in a wireless device, the computer program comprising computer program code which, when run on the wireless device, causes the wireless device to:
- acquire a plurality of cell broadcast frequencies;
- determine a subgroup of cell broadcast frequencies from said received plurality of cell broadcast frequencies;
- recover frequency and time slot information in said subgroup by tuning a local oscillator to a center frequency of said subgroup;
- extract individual frequencies from said recovered frequency information;
- and
- provide said individual frequencies to a frequency correction detector.
Dependencies are inferred from the claim text.