Apparatus and method for transmitting or receiving physical sidelink broadcast channel
View Patent ↗An apparatus and a method for transmitting or receiving a physical sidelink broadcast channel (PSBCH) are provided. The method for transmitting a PSBCH of a first user equipment includes transmitting, to one or more second user equipments, a PSBCH carrying information, and the information carried in the PSBCH is used to determine a periodicity and a number of slots. This can reduce a payload size of the information carried in the PSBCH.
1. A method for transmitting a physical sidelink broadcast channel (PSBCH) of a first user equipment, comprising:
transmitting, to one or more second user equipments, a PSBCH carrying information, wherein the information carried in the PSBCH is used to determine a periodicity and a number of slots wherein the slots comprise sidelink (SL) slots; and
obtaining a first reference subcarrier spacing (SCS), wherein the first reference SCS is configured by the network;
wherein the number of slots which is determined by the information carried in the PSBCH is further determined by the first reference SCS and a second reference SCS, wherein the second reference SCS is pre-configured, or determined by the information carried in the PSBCH.
2. The method of claim 1 , wherein only a pattern 1 is configured by a network, the information carried in PSBCH is determined by parameters configured in pattern 1 .
3. The method of claim 2 , wherein the periodicity which is determined by the information carried in the PSBCH is determined by a periodicity configured in the pattern 1 .
4. The method of claim 2 , wherein the number of slots which is determined by the information carried in the PSBCH is determined by a number of slots configured in the pattern 1 .
5. The method of claim 4 , wherein the slots configured in the pattern 1 comprise UL slots.
6. The method of claim 1 , wherein both a pattern 1 and a pattern 2 are configured by the network, the information carried in PSBCH is determined by parameters configured in pattern 1 and/or pattern 2 .
7. The method of claim 6 , wherein the periodicity which is determined by the information carried in the PSBCH is determined by a first periodicity configured in the pattern 1 and a second periodicity configured in the pattern 2 .
8. The method of claim 6 , wherein the number of slots which is determined by the information carried in the PSBCH is determined by a number of slots configured in at least one of the pattern 1 and the pattern 2 .
9. The method of claim 8 , wherein the slots configured in at least one of the pattern 1 and the pattern 2 comprise UL slots.
10. The method of claim 1 , wherein the information carried in the PSBCH further determines a number of symbols wherein the symbols comprise SL symbols.
11. The method of claim 1 , wherein the first user equipment is in coverage of a cell.
12. A first user equipment for transmitting a physical sidelink broadcast channel (PSBCH), comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver,
wherein the processor is configured to control the transceiver to transmit, to one or more second user equipments, a PSBCH carrying information, wherein the information carried in the PSBCH is used to determine a periodicity and a number of slots wherein the slots comprise sidelink (SL) slots; and
obtain a first reference subcarrier spacing (SCS), wherein the first reference SCS is configured by a network;
wherein the number of slots which is determined by the information carried in the PSBCH is further determined by the first reference SCS and a second reference SCS, wherein the second reference SCS is pre-configured, or determined by the information carried in the PSBCH.
13. The first user equipment of claim 12 , wherein only a pattern 1 is configured by a network, the information carried in PSBCH is determined by parameters configured in pattern 1 , the periodicity which is determined by the information carried in the PSBCH is determined by a periodicity configured in the pattern 1 , the number of slots which is determined by the information carried in the PSBCH is determined by a number of slots configured in the pattern 1 , the slots configured in the pattern 1 comprise UL slots.
14. The first user equipment of claim 12 , wherein both a pattern 1 and a pattern 2 are configured by the network, the information carried in PSBCH is determined by parameters configured in pattern 1 and/or pattern 2 , the periodicity which is determined by the information carried in the PSBCH is determined by a first periodicity configured in the pattern 1 and a second periodicity configured in the pattern 2 , the number of slots which is determined by the information carried in the PSBCH is determined by a number of slots configured in at least one of the pattern 1 and the pattern 2 , the slots configured in at least one of the pattern 1 and the pattern 2 comprise UL slots.
15. The first user equipment of claim 12 , wherein the information carried in the PSBCH further determines a number of symbols wherein the symbols comprise SL symbols.
16. The first user equipment of claim 12 , wherein the first user equipment is in coverage of a cell.