Path discrimination
AssigneeNokia Technologies Oy
InventorsSamantha Caporal Del Barrio, Bo Holm Bjerrum, Christian Rom, Simon Svendsen
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Abstract
An apparatus, a method and a computer program is described comprising: receiving a plurality of synchronisation symbol blocks; classifying the received synchronisation symbol blocks based on delay relative to an expected reception time; and identifying one or more candidate line of sight paths on the basis of the delay relative to the expected reception time.
Claims18
An apparatus comprising at last one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to perform:
- receiving a plurality of synchronisation symbol blocks sent in different blocks of symbols at different times using different beams;
- classifying the received synchronisation symbol blocks based on corresponding delays relative to corresponding expected reception times for corresponding ones of the synchronisation symbol blocks;
- and
- identifying, based on the classifying, one or more candidate line of sight paths for the synchronisation symbol blocks and their corresponding beams on the basis of the corresponding delays relative to the corresponding expected reception times, wherein the identifying comprises:
- measuring channel impulse responses for the received synchronisation symbol blocks;
- identifying a maximum power spike and associated time of a corresponding channel impulse response for each received synchronisation symbol block;
- and
- comparing, for the received synchronisation symbol blocks, the associated times of the maximum power spikes to the expected reception times to identify corresponding delays relative to the corresponding expected reception times.
A method comprising:
- receiving a plurality of synchronisation symbol blocks sent in different blocks of symbols at different times using different beams;
- classifying the received synchronisation symbol blocks based on corresponding delays relative to corresponding expected reception times for corresponding ones of the synchronisation symbol blocks;
- and
- identifying, based on the classifying, one or more candidate line of sight paths for the synchronisation symbol blocks and their corresponding beams on the basis of the corresponding delays relative to the corresponding expected reception times, wherein the identifying comprises:
- measuring channel impulse responses for the received synchronisation symbol blocks;
- identifying a maximum power spike and associated time of a corresponding channel impulse response for each received synchronisation symbol block;
- and
- comparing, for the received synchronisation symbol blocks, the associated times of the maximum power spikes to the expected reception times to identify corresponding delays relative to the corresponding expected reception times.
A non-transitory computer-readable medium comprising program instructions stored thereon to cause an apparatus to perform at least the following:
- receiving a plurality of synchronisation symbol blocks sent in different blocks of symbols at different times using different beams;
- classifying the received synchronisation symbol blocks based on corresponding delays relative to corresponding expected reception times for corresponding ones of the synchronisation symbol blocks;
- and
- identifying, based on the classifying, one or more candidate line of sight paths for the synchronisation symbol blocks and their corresponding beams on the basis of the corresponding delays relative to the corresponding expected reception times, wherein the identifying comprises:
- measuring channel impulse responses for the received synchronisation symbol blocks;
- identifying a maximum power spike and associated time of a corresponding channel impulse response for each received synchronisation symbol block;
- and
- comparing, for the received synchronisation symbol blocks, the associated times of the maximum power spikes to the expected reception times to identify corresponding delays relative to the corresponding expected reception times.
Dependencies are inferred from the claim text.