Techniques for high frequency wireless communication
Various embodiments provide techniques for high frequency wireless communication. For example, embodiments include techniques for a transmission scheme for physical downlink control channel (PDCCH) with single carrier waveform; synchronization signal block (SSB) rate matching indication for NR unlicensed operation; beam acquisition for frequency division duplex (FDD) systems; and/or SSB patterns and multiplexing for downlink transmissions. Other embodiments may be described and claimed.
1. One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors cause a next generation Node B (gNB) to perform operations comprising:
determine a control resource set (CORESET) that includes at least three single carrier with frequency domain equalizer (SC-FDE) symbols that are within a slot in a time domain, wherein a first SC-FDE symbol and a third SC-FDE symbol in the CORESET include information related to a physical downlink channel (PDCCH) and wherein a second SC-FDE symbol positioned between the first SC-FDE symbol and the third SC-FDE symbol in the time domain includes information related to a demodulation reference signal (DMRS); and
transmit the CORESET to a user equipment (UE).
2. The one or more NTCRM of claim 1 , wherein the SC-FDE symbols are transmitted on a carrier frequency greater than 52.6 GHz, and wherein the CORESET includes 3 or 4 SC-FDE symbols.
3. The one or more NTCRM of claim 1 , wherein the operations further comprise inserting a cyclic prefix, guard interval, or unique word at the beginning or end of individual SC-FDE symbols within the CORESET.
4. The one or more NTCRM of claim 1 , wherein the information related to the DMRS is multiplexed with information related to the PDCCH in the second SC-FDE symbol within the CORESET.
5. The one or more NTCRM of claim 4 , wherein the multiplexing includes:
inserting a first portion of a cyclic prefix, guard interval, or unique word between the second SC-FDE symbol and the first or the third SC-FDE symbols; and
inserting a second portion of the cyclic prefix, guard interval, or unique word at the beginning of the second SC-FDE symbol.
6. The one or more NTCRM of claim 1 , wherein the operations further comprise transmitting, to the UE, scheduling information to indicate resources within the CORESET on which the DMRS or PDCCH are to be transmitted, wherein the scheduling information includes an indication of a DMRS antenna port on which the DMRS is to be transmitted.
7. The one or more NTCRM of claim 1 , wherein the DMRS is transmitted using a DMRS antenna port that is designated for PDCCH transmission on SC-FDE symbols.
8. One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed by one or more processors cause a user equipment (UE) to perform operations comprising:
identify a received control resource set (CORESET) that includes at least three single carrier with frequency domain equalizer (SC-FDE) symbols within a slot in a time domain, wherein a first and third SC-FDE symbol in the CORESET include information related to a physical downlink control channel (PDCCH) and wherein a second SC-FDE symbol positioned between the first and third SC-FDE symbol in the time domain includes information related to a demodulation reference signal (DMRS); and
processing the PDCCH based on the CORESET.
9. The one or more NTCRM of claim 8 , wherein the SC-FDE symbols are received on a carrier frequency greater than 52.6 GHz, and wherein the CORESET includes 3 or 4 SC-FDE symbols.
10. The one or more NTCRM of claim 8 , wherein the operations further comprise receiving a cyclic prefix, guard interval, or unique word at the beginning or end of individual SC-FDE symbols within the CORESET.
11. The one or more NTCRM of claim 8 , wherein the second SC-FDE symbol includes information related to the PDCCH multiplexed with the information related to the DMRS.
12. The one or more NTCRM of claim 11 , wherein the operations further comprise:
identifying a first portion of a cyclic prefix, guard interval, or unique word between the information related to the DMRS and the information related to the PDCCH in the second SC-FDE symbol; and
identifying a second portion of the cyclic prefix, guard interval, or unique word at the beginning of the second SC-FDE symbol.
13. The one or more NTCRM of claim 8 , wherein the operations further comprise receiving scheduling information to indicate resources within the CORESET on which the DMRS or PDCCH are to be transmitted.
14. The one or more NTCRM of claim 13 , wherein the scheduling information includes an indication of a DMRS antenna port on which the DMRS is to be transmitted.
15. The one or more NTCRM of claim 8 , wherein the DMRS is received on a DMRS antenna port that is designated for PDCCH transmission on SC-FDE symbols.