Beamformed paging transmission
One or more techniques for beamformed paging are disclosed. A transmission/reception point (TRP) may transmit a paging inquiry signal using beam sweeping in a paging inquiry (PI) block with a different time, frequency resource set and/or sequence configuration associated with the same paging occasion (PO), for example, to randomize and/or distribute WTRUs into different monitoring groups. A WTRU may transmit an uplink paging inquiry response indicating a downlink beam for a paging data transmission and/or a WTRU ID. A downlink control and/or a data channel transmission may be triggered by a paging inquiry response transmission. Paging downlink control information may be transmitted in a WTRU-specific control channel, which may contain CRC bits masked by a temporary paging identity, e.g., based on a WTRU ID that may be reported in a paging inquiry response transmission. A WTRU paging procedure may be based on a paging inquiry signal and/or response transmission.
1. A wireless transmit/receive unit (WTRU) in communication with a wireless communication network, the WTRU comprising:
a memory;
a processor, the processor configured at least to:
select at least one beamformed transmission comprising a synchronization signal associated with an occurrence of a paging occasion (PO);
determine an inquiry signal configuration based on the at least one synchronization signal and a WTRU identifier (ID);
detect an inquiry signal during a portion of the PO, wherein the inquiry signal is detected using timing information for the inquiry signal, the timing information determined based on the inquiry signal configuration;
determine whether a group ID carried in the inquiry signal corresponds to a group ID associated with the WTRU; and
if the group ID carried in the inquiry signal corresponds to the group ID associated with the WTRU, receive during the PO an associated paging message within a beam in which the inquiry signal was detected.
2. The WTRU of claim 1 , wherein the group ID associated with the WTRU is a configured group ID for the WTRU.
3. The WTRU of claim 1 , wherein the inquiry signal is a 3GPP 5G Paging Inquiry (PI).
4. The WTRU of claim 1 , wherein the synchronization signal is a 3GPP 5G Synchronization Signal Block (SSB).
5. The WTRU of claim 1 , wherein each of the at least one beamformed transmission comprises an associated synchronization signal.
6. A method performed by a transmit/receive unit (WTRU) in communication with a wireless communication network, the method comprising:
selecting at least one beamformed transmission comprising a synchronization signal associated with an occurrence of a paging occasion (PO);
determining an inquiry signal configuration based on the at least one synchronization signal and a WTRU identifier (ID);
detecting an inquiry signal during a portion of the PO, wherein the inquiry signal is detected using timing information for the inquiry signal, the timing information determined based on the inquiry signal configuration;
determining whether a group ID carried in the inquiry signal corresponds to a group ID associated with the WTRU; and
if the group ID carried in the inquiry signal corresponds to the group ID associated with the WTRU, receiving during the PO an associated paging message within a beam in which the inquiry signal was detected.
7. The method of claim 6 , wherein the group ID associated with the WTRU is a configured group ID for the WTRU.
8. The method of claim 6 , wherein the inquiry signal is a 3GPP 5G Paging Inquiry (PI).
9. The method of claim 6 , wherein the synchronization signal is a 3GPP 5G Synchronization Signal Block (SSB).
10. The method of claim 6 , wherein each of the at least one beamformed transmission comprises an associated synchronization signal.