Receiving a paging message
Apparatuses, methods, and systems are disclosed for reception of a paging message. One apparatus includes a processing unit and a transceiver that receives one or more paging occasion configurations in a system information block. The processing unit determines a paging frame and a paging occasion identity within the paging frame based on at least one of: a UE identity and a discontinuous reception cycle length and selects a paging occasion configuration from the received one or more paging occasion configurations, wherein the selected paging occasion configuration is associated with the determined paging occasion identity. The processing unit also determines a paging slot and a paging symbol within the determined paging slot based on the selected paging occasion configuration and decodes a physical downlink control channel (“PDCCH”) carrying paging downlink control information (“DCI”) on the determined paging symbol within the determined paging slot of the determined paging frame.
1. A method in a UE, the method comprising:
receiving one or more paging occasion configurations in a system information block, wherein the system information block includes a first quantity of paging occasion configurations;
determining a paging frame and a paging occasion identity within the paging frame based on one or more of: a UE identity and a discontinuous reception cycle length, wherein an amount of paging occasions per paging frame corresponds to the first quantity of paging occasion configurations included in the system information block;
selecting a paging occasion configuration from the received one or more paging occasion configurations, wherein the selected paging occasion configuration is associated with the determined paging occasion identity;
determining a paging slot and a paging symbol within the determined paging slot based on the selected paging occasion configuration; and
decoding a physical downlink control channel (“PDCCH”) carrying paging downlink control information (“DCI”) on the determined paging symbol within the determined paging slot of the determined paging frame.
2. The method of claim 1 , wherein each of the received one or more paging occasion configurations is associated with a paging occasion identity.
3. The method of claim 1 , wherein determining the paging frame comprises determining a starting radio frame index of the paging frame.
4. The method of claim 1 , further comprising receiving an indication of a paging frame duration.
5. The method of claim 4 , wherein the paging frame duration is longer than one radio frame duration.
6. The method of claim 1 , wherein the determined paging slot is in a paging occasion, wherein the paging occasion is determined based on the paging occasion configuration selected from the one or more paging occasion configurations and comprises a plurality of paging slots.
7. The method of claim 1 , further comprising selecting a synchronization signal/physical broadcast channel block (“SS/PBCH block”) from a plurality of SS/PBCH blocks, wherein the determined paging slot and the paging symbol within the determined paging slot are dependent on the selected SS/PBCH block.
8. The method of claim 1 , wherein each of the one or more paging occasion configurations includes information used for determining a plurality of paging slots.
9. The method of claim 8 , wherein the information used for determining the plurality of paging slots includes information related to a starting paging slot of the plurality of paging slots.
10. The method of claim 8 , wherein the information used for determining the plurality of paging slots includes information related to a slot increment step of the plurality of paging slots.
11. The method of claim 1 , wherein each of the one or more paging occasion configurations includes information related to a paging search space within a paging slot, wherein the paging symbol is determined based on the paging search space.
12. An apparatus comprising:
a transceiver that receives one or more paging occasion configurations in a system information block, wherein the system information block includes a first quantity of paging occasion configurations; and
a processing unit that:
determines a paging frame and a paging occasion identity within the paging frame based on at least one of: a UE identity and a discontinuous reception cycle length, wherein an amount of paging occasions per paging frame corresponds to the first quantity of paging occasion configurations included in the system information block;
selects a paging occasion configuration from the received one or more paging occasion configurations, wherein the selected paging occasion configuration is associated with the determined paging occasion identity;
determines a paging slot and a paging symbol within the determined paging slot based on the selected paging occasion configuration, wherein the paging slot in the paging frame is determined using the group offset, slot increment step, slot offset and a value of the first subcarrier spacing; and
decodes a physical downlink control channel (“PDCCH”) carrying paging downlink control information (“DCI”) on the determined paging symbol within the determined paging slot of the determined paging frame.
13. The apparatus of claim 12 , wherein each of the received one or more paging occasion configurations is associated with a paging occasion identity.
14. The apparatus of claim 12 , wherein determining the paging frame comprises determining a starting radio frame index of the paging frame.
15. The apparatus of claim 12 , wherein the transceiver further receives an indication of a paging frame duration.
16. The apparatus of claim 15 , wherein the paging frame duration is longer than one radio frame duration.
17. The apparatus of claim 12 , wherein the determined paging slot is in a paging occasion, wherein the paging occasion is determined based on the paging occasion configuration selected from the one or more paging occasion configurations and comprises a plurality of paging slots.
18. The apparatus of claim 12 , wherein the processing unit further selects a synchronization signal/physical broadcast channel block (“SS/PBCH block”) from a plurality of SS/PBCH blocks, wherein the determined paging slot and the paging symbol within the determined paging slot are dependent on the selected SS/PBCH block.
19. The apparatus of claim 12 , wherein each of the one or more paging occasion configurations includes information used for determining a plurality of paging slots.
20. The apparatus of claim 12 , wherein each of the one or more paging occasion configurations includes information related to a paging search space within a paging slot, wherein the paging symbol is determined based on the paging search space.