Radiocommunication employing selected synchronization technique
OwnerBengt Lindoff, Jakob Singvallinventors
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Abstract
A method and apparatus for acquiring time synchronization to a received signal are described. First, a burst of data which includes a known sequence is received. This received signal is processed using a plurality of different synchronization techniques. Each synchronization technique can be paired with a corresponding channel estimation technique, which pairing is predetermined to be optimized for particular channel conditions. A processor or model validation unit selects the channel estimate associated with the channel conditions currently being experienced by the radio signal.
Claims19
A method for synchronizing to a radio signal comprising the steps of:
- receiving said radio signal;
- determining a first synchronization position for said radio signal using a first synchronization technique;
- generating a first channel estimate using said first synchronization position;
- determining a second synchronization position for said radio signal using a second synchronization technique, wherein said second synchronization technique is different from said first synchronization technique;
- generating a second channel estimate using said second synchronization position;
- and
- selecting one of said first channel estimate and said second channel estimate for use in subsequent processing of said radio signal.
A receiver comprising:
- means for receiving a radio signal;
- means for determining a first synchronization position for said radio signal using a first synchronization technique;
- means for generating a first channel estimate using said first synchronization position;
- means for determining a second synchronization position for said radio signal using a second synchronization technique, wherein said second synchronization technique is different from said first synchronization technique;
- means for generating a second channel estimate using said second synchronization position;
- and
- means for selecting one of said first channel estimate and said second channel estimate for use in subsequent processing of said radio signal.
A receiver comprising:
- a downconverter for downconverting a received signal to baseband signal;
- a known sequence generator for generating a synchronization sequence;
- a first synchronization unit for synchronizing to said baseband signal using a first synchronization technique;
- and
- a second synchronization unit for synchronizing to said baseband signal using a second synchronization technique, wherein said first synchronization technique and said second synchronization technique are different.
Dependencies are inferred from the claim text.