Synchronization signal block time domain pattern design
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify, based at least in part on a sub-carrier spacing configuration and a frequency band of a base station, a synchronization signal block configuration used to communicate one or more synchronization signal blocks, wherein the synchronization signal block configuration defines a placement of control symbols within a slot and one or more beam switching gaps. The UE may monitor a set of resources in the frequency band according to the synchronization signal block configuration. The UE may receive one or more synchronization signal blocks based at least in part on the monitoring. The UE may establish or modify a connection with the base station based at least in part on the received one or more synchronization signal blocks.
1. A method for wireless communication at a user equipment (UE), comprising:
identifying, based at least in part on a sub-carrier spacing configuration and a frequency band of a network device, a synchronization signal block configuration used to communicate synchronization signal blocks, wherein the synchronization signal block configuration defines a placement of control symbols within a slot, a first set of synchronization signal blocks beginning at a symbol two of the slot and spanning a first set of symbols of the slot, and a second set of synchronization signal blocks beginning at a symbol nine of the slot and spanning a second set of symbols of the slot;
monitoring a set of resources in the frequency band according to the synchronization signal block configuration;
receiving the synchronization signal blocks based at least in part on the monitoring, the synchronization signal blocks comprising the first set of synchronization signal blocks or the second set of synchronization signal blocks or both; and
establishing or modifying a connection with the network device based at least in part on the received synchronization signal blocks.
2. The method of claim 1 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching between the first set of symbols and the second set of symbols; and
a second symbol for beam switching after the second set of symbols.
3. The method of claim 1 , wherein the synchronization signal block configuration defines a two slot pattern comprising:
a plurality of sets of synchronization signal blocks spanning a corresponding plurality of sets of symbols of two slots;
a corresponding plurality of sets of one or more symbols for beam switching between each set of symbols of the plurality of sets of symbols of the two slots; and
a symbol for beam switching after a last set of symbols of the plurality of sets of symbols.
4. The method of claim 1 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching before the first set of symbols; and
a second symbol for beam switching after the first set of symbols.
5. The method of claim 1 , wherein the synchronization signal block configuration defines a synchronization signal block pattern over a synchronization signal block burst period comprising: a first set of synchronization signal block slots followed by a second set of non-synchronization signal block slots, wherein the first set of synchronization signal block slots and the second set of non-synchronization signal block slots are repeated over the synchronization signal block burst period.
6. The method of claim 5 , wherein a first number of slots in the first set of synchronization signal block slots is less than a second number of slots in the second set of non-synchronization signal block slots.
7. A method for wireless communication at a network device, comprising:
identifying, based at least in part on a sub-carrier spacing configuration and a frequency band of the network device, a synchronization signal block configuration used to communicate synchronization signal blocks, wherein the synchronization signal block configuration defines a placement of control symbols within a slot, a first set of synchronization signal blocks beginning at a symbol two of the slot and spanning a first set of symbols of the slot, and a second set of synchronization signal blocks beginning at a symbol nine of the slot and spanning a second set of symbols of the slot;
transmitting the synchronization signal blocks based at least in part on the synchronization signal block configuration, the synchronization signal blocks comprising the first set of synchronization signal blocks or the second set of synchronization signal blocks or both; and
establishing or modifying a connection with one or more user equipment (UE) based at least in part on the synchronization signal blocks.
8. The method of claim 7 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching between the first set of symbols and the second set of symbols; and
a second symbol for beam switching after the second set of symbols.
9. The method of claim 7 , wherein the synchronization signal block configuration defines a two slot pattern comprising:
a plurality of sets of synchronization signal blocks spanning a corresponding plurality of sets of symbols of two slots;
a corresponding plurality of sets of one or more symbols for beam switching between each set of symbols of the plurality of sets of symbols of the two slots; and
a symbol for beam switching after a last set of symbols of the plurality of sets of symbols.
10. The method of claim 7 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching before the first set of symbols; and
a second symbol for beam switching after the first set of symbols.
11. The method of claim 7 , wherein the synchronization signal block configuration defines a synchronization signal block pattern over a synchronization signal block burst period comprising: a first set of synchronization signal block slots followed by a second set of non-synchronization signal block slots, wherein the first set of synchronization signal block slots and the second set of non-synchronization signal block slots are repeated over the synchronization signal block burst period.
12. The method of claim 11 , wherein a first number of slots in the first set of synchronization signal block slots is less than a second number of slots in the second set of non-synchronization signal block slots.
13. The method of claim 7 , further comprising:
identifying a placement of the first set of symbols in which the first set of synchronization signal blocks are transmitted; and
identifying, based at least in part on the placement of the first set of symbols, a control information type to be transmitted in one or more control symbols preceding the first set of symbols.
14. An apparatus for wireless communication at a user equipment (UE), comprising:
a processor,
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
identify, based at least in part on a sub-carrier spacing configuration and a frequency band of a network device, a synchronization signal block configuration used to communicate synchronization signal blocks, wherein the synchronization signal block configuration defines a placement of control symbols within a slot, a first set of synchronization signal blocks beginning at a symbol two of the slot and spanning a first set of symbols of the slot, and a second set of synchronization signal blocks beginning at a symbol nine of the slot and spanning a second set of symbols of the slot;
monitor a set of resources in the frequency band according to the synchronization signal block configuration;
receive the synchronization signal blocks based at least in part on the monitoring, the synchronization signal blocks comprising the first set of synchronization signal blocks or the second set of synchronization signal blocks or both; and
establish or modifying a connection with the network device based at least in part on the received synchronization signal blocks.
15. The apparatus of claim 14 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching between the first set of symbols and the second set of symbols; and
a second symbol for beam switching after the second set of symbols.
16. The apparatus of claim 14 , wherein the synchronization signal block configuration defines a two slot pattern comprising:
a plurality of sets of synchronization signal blocks spanning a corresponding plurality of sets of symbols of two slots;
a corresponding plurality of sets of one or more symbols for beam switching between each set of symbols of the plurality of sets of symbols of the two slots; and
a symbol for beam switching after a last set of symbols of the plurality of sets of symbols.
17. The apparatus of claim 14 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching before the first set of symbols; and
a second symbol for beam switching after the first set of symbols.
18. The apparatus of claim 14 , wherein the synchronization signal block configuration defines a synchronization signal block pattern over a synchronization signal block burst period comprising a first set of synchronization signal block slots followed by a second set of non-synchronization signal block slots, wherein the first set of synchronization signal block slots and the second set of non-synchronization signal block slots are repeated over the synchronization signal block burst period.
19. The apparatus of claim 18 , wherein a first number of slots in the first set of synchronization signal block slots is less than a second number of slots in the second set of non-synchronization signal block slots.
20. An apparatus for wireless communication at a network device, comprising:
a processor,
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
identify, based at least in part on a sub-carrier spacing configuration and a frequency band of the network device, a synchronization signal block configuration used to communicate synchronization signal blocks, wherein the synchronization signal block configuration defines a placement of control symbols within a slot, a first set of synchronization signal blocks beginning at a symbol two of the slot and spanning a first set of symbols of the slot, and a second set of synchronization signal blocks beginning at a symbol nine of the slot and spanning a second set of symbols of the slot;
transmit the synchronization signal blocks based at least in part on the synchronization signal block configuration, the synchronization signal blocks comprising the first set of synchronization signal blocks or the second set of synchronization signal blocks or both; and
establish or modifying a connection with one or more user equipment (UE) based at least in part on the synchronization signal blocks.
21. The apparatus of claim 20 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching between the first set of symbols and the second set of symbols; and
a second symbol for beam switching after the second set of symbols.
22. The apparatus of claim 20 , wherein the synchronization signal block configuration defines a two slot pattern comprising:
a plurality of sets of synchronization signal blocks spanning a corresponding plurality of sets of symbols of two slots;
a corresponding plurality of sets of one or more symbols for beam switching between each set of symbols of the plurality of sets of symbols of the two slots; and
a symbol for beam switching after a last set of symbols of the plurality of sets of symbols.
23. The apparatus of claim 20 , wherein the synchronization signal block configuration defines a slot pattern comprising:
a first set of one or more symbols for beam switching before the first set of symbols; and
a second symbol for beam switching after the first set of symbols.
24. The apparatus of claim 20 , wherein the synchronization signal block configuration defines a synchronization signal block pattern over a synchronization signal block burst period comprising a first set of synchronization signal block slots followed by a second set of non-synchronization signal block slots, wherein the first set of synchronization signal block slots and the second set of non-synchronization signal block slots are repeated over the synchronization signal block burst period.
25. The apparatus of claim 24 , wherein a first number of slots in the first set of synchronization signal block slots is less than a second number of slots in the second set of non-synchronization signal block slots.
26. The apparatus of claim 20 , wherein the instructions are further executable by the processor to cause the apparatus to:
identify a placement of the first set of symbols in which the first set of synchronization signal blocks are transmitted; and
identify, based at least in part on the placement of the first set of symbols, a control information type to be transmitted in one or more control symbols preceding the first set of symbols.