Synchronization signal block pattern and demodulation reference signal design for physical broadcast channel for channel frequencies above 52.6GHZ
A device of a New Radio (NR) User Equipment (UE), a method and a machine readable medium to implement the method. The device includes a Radio Frequency (RF) interface, and processing circuitry coupled to the RF interface, the processing circuitry to: encode for transmission, to a User Equipment (UE), a Synchronization Signal Block (SSB) including a Physical Broadcast Channel (PBCH) and a channel estimation signal that is time division multiplexed with the PBCH, the channel estimation signal to allow the UE to estimate a channel for the PBCH and including one of a Secondary Synchronization Signal (SSS), a Demodulation Reference Signal (DMRS) or a Phase Tracking Reference Signal (PT-RS); and apply Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) to the PBCH prior to sending the SSB to the RF interface for transmission.
1. A device of a New Radio (NR) evolved Node B (gNodeB), the device including a Radio Frequency (RF) interface, and processing circuitry coupled to the RF interface, the processing circuitry to:
encode for transmission, to a User Equipment (UE), a Synchronization Signal Block (SSB) including a Physical Broadcast Channel (PBCH) and a channel estimation signal that is time division multiplexed with the PBCH, the channel estimation signal to allow the UE to estimate a channel for the PBCH and including a Demodulation Reference Signal (DMRS), the SSB further including a Secondary Synchronization Signal (SSS) not corresponding to the channel estimation signal, the SSS time division multiplexed with the DMRS in a same symbol; and
apply Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) to the PBCH prior to sending the SSB to the RF interface for transmission.
2. The device of claim 1 , wherein the processing circuitry is to encode the SSB for transmission on carrier frequencies above 52.6 GHz in a single carrier (SC) waveform.
3. The device of claim 1 , wherein the SSB further includes a Primary Synchronization Signal (PSS), and wherein:
the PBCH spans K1 symbols and the channel estimation signal spans K2 symbols, where K1 and K2 are constants and are one of identical or different with respect to one another; and
the PBCH and the channel estimation signal each span N1 Physical Resource Blocks (PRBs) and the PSS spans N2 PRBs, where N1 and N2 are constants and are one of identical or different with respect to one another.
4. The device of claim 1 , wherein the channel estimation signal comes before, after or in the middle of the PBCH in a time domain.
5. The device of claim 1 , wherein the same symbol includes signals of the DMRS on each side, in a time domain, of signals of the SSS not corresponding to the channel estimation signal.
6. The device of claim 3 , wherein the channel estimation signal includes the SSS and the SSS includes both a partial or full SSB time index for the SSB, and partial cell identification (ID) information.
7. The device of claim 1 , wherein the processing circuitry is to use one of a Zadoff-Chu (ZC) sequence, a maximum length sequence (m-sequence) or Gold code sequence modulated using pi/2-Binary Phase Shift Keying (BPSK) modulation, or a Bjorck Constant Amplitude Zero Auto Correlation (CAZAC) to generate the channel estimation signal in the SSB.
8. The device of claim 7 , further including a front end module coupled to the RF interface.
9. The device of claim 8 , further including one or more antennas coupled to the front end module to transmit the SSB.
10. A method to be performed at a device of a New Radio (NR) evolved Node B (gNodeB), the method including:
encoding for transmission, to a User Equipment (UE), a Synchronization Signal Block (SSB) including a Physical Broadcast Channel (PBCH) and a channel estimation signal that is time division multiplexed with the PBCH, the channel estimation signal to allow the UE to estimate a channel for the PBCH and including a Demodulation Reference Signal (DMRS), the SSB further including a Secondary Synchronization Signal (SSS) not corresponding to the channel estimation signal, the SSS time division multiplexed with the DMRS in a same symbol; and
applying Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) to the PBCH prior to sending the SSB for transmission.
11. The method of claim 10 , further including encoding the SSB for transmission on carrier frequencies above 52.6 GHz in a single carrier (SC) waveform.
12. The method of claim 10 , wherein the SSB further includes a Primary Synchronization Signal (PSS), and wherein:
the PBCH spans K1 symbols and the channel estimation signal spans K2 symbols, where K1 and K2 are constants and are one of identical or different with respect to one another; and
the PBCH and the channel estimation signal each span N1 Physical Resource Blocks (PRBs) and the PSS spans N2 PRBs, where N1 and N2 are constants and are one of identical or different with respect to one another.
13. The method of claim 10 , wherein the channel estimation signal comes before, after or in the middle of the PBCH in a time domain.
14. The method of claim 10 , further including applying an Inverse Fast Fourier Transform (IFFT) and a Cyclic Prefix (CP) insertion to the SSB after applying the DFT-s-OFDM and prior to sending the SSB for transmission.
15. The method of claim 12 , wherein the channel estimation signal includes the SSS, and K1=K2.
16. The method of claim 15 , wherein the SSS includes both a partial or full SSB time index for the SSB, and partial cell identification (ID) information.
17. One or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one computer processor of a New Radio (NR) evolved Node B (gNodeB), enable the at least one computer processor to perform operations including:
encoding for transmission, to a User Equipment (UE), a Synchronization Signal Block (SSB) including a Physical Broadcast Channel (PBCH) and a channel estimation signal that is time division multiplexed with the PBCH, the channel estimation signal to allow the UE to estimate a channel for the PBCH and including a Demodulation Reference Signal (DMRS), the SSB further including a Secondary Synchronization Signal (SSS) not corresponding to the channel estimation signal, the SSS time division multiplexed with the DMRS in a same symbol; and
applying Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) to the PBCH prior to sending the SSB for transmission.
18. The storage media of claim 17 , the operations further including encoding the SSB for transmission on carrier frequencies above 52.6 GHz in a single carrier (SC) waveform.
19. The storage media of claim 17 , wherein the SSB further includes a Primary Synchronization Signal (PSS), and wherein:
the PBCH spans K1 symbols and the channel estimation signal spans K2 symbols, where K1 and K2 are constants and are one of identical or different with respect to one another; and
the PBCH and the channel estimation signal each span N1 Physical Resource Blocks (PRBs) and the PSS spans N2 PRBs, where N1 and N2 are constants and are one of identical or different with respect to one another.
20. The storage media of claim 17 , the operations further including applying an Inverse Fast Fourier Transform (IFFT) and a Cyclic Prefix (CP) insertion to the PBCH after applying the DFT-s-OFDM and prior to sending the SSB for transmission.