Methods and apparatuses for channel estimation for NB-PBCH in NB-LTE systems
First Claim
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1. An apparatus, comprising:
- radio frequency (RF) circuitry to receive a synchronization signal including at least one of a Narrowband Primary or Secondary Synchronization Signal (NB-PSS or NB-SSS);
baseband circuitry to identify channel estimates corresponding to a first subframe of the synchronization signal adjacent to a second subframe carrying Narrowband Physical Broadcast Channel (NB-PBCH), wherein a location of the first subframe within a set of ten consecutive subframes of a Long-Term Evolution (LTE) radio frame is cell-specific based on a Physical Cell Identity (PCID) of a transmitting cell and the set of ten consecutive subframes of the LTE radio frame spans a duration of 10 milliseconds (ms); and
the baseband circuitry to use the identified channel estimates to recover the NB-PBCH.
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Abstract
Embodiments of the present disclosure describe systems, devices, and methods for channel estimation for NB-PBCH in NB-LTE systems. Various embodiments may relate to options that can be used for demodulation of the NB-PBCH by the NB-LTE-UEs, and in certain embodiments may include a reference signal (RS) usable for demodulation of the NB-PBCH by the NB-LTE-UEs. Other embodiments may be described or claimed.
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Citations
13 Claims
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1. An apparatus, comprising:
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radio frequency (RF) circuitry to receive a synchronization signal including at least one of a Narrowband Primary or Secondary Synchronization Signal (NB-PSS or NB-SSS); baseband circuitry to identify channel estimates corresponding to a first subframe of the synchronization signal adjacent to a second subframe carrying Narrowband Physical Broadcast Channel (NB-PBCH), wherein a location of the first subframe within a set of ten consecutive subframes of a Long-Term Evolution (LTE) radio frame is cell-specific based on a Physical Cell Identity (PCID) of a transmitting cell and the set of ten consecutive subframes of the LTE radio frame spans a duration of 10 milliseconds (ms); and the baseband circuitry to use the identified channel estimates to recover the NB-PBCH. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. One or more non-transitory computer-readable media having instructions stored thereon that, in response to execution by one or more processors of a User Equipment (UE), cause the UE to perform operations, to:
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in response to receipt of a synchronization signal including at least one of a Narrowband Primary or Secondary Synchronization Signal (NB-PSS or NB-SSS), identify channel estimates corresponding to a first subframe of the synchronization signal adjacent to a second subframe carrying Narrowband Physical Broadcast Channel (NB-PBCH), wherein a location of the first subframe within a set of ten consecutive subframes of a Long-Term Evolution (LTE) radio frame is cell-specific based on a Physical Cell Identity (PCID) of a transmitting cell and the set of ten consecutive subframes spans a duration of 10 milliseconds (ms); and use the identified channel estimates to recover the NB-PBCH. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification