CONTROL FOR NON-SDT DATA TRANSMISSION
Embodiments of the present disclosure relate to devices, methods, apparatuses and computer-readable storage medium for controlling DCCH based non-Small Data Transmission (SDT) data arrival. In some example embodiments, a terminal device transmits an indication an availability of non-Small Data Transmission (SDT) data to a network device during a SDT procedure. The terminal device monitors for a response to the indication, and performs an action comprising in response to absence of the response to the indication of the non-SDT data. The action comprises: entering an idle or inactive state and/or initiating a connection setup or resume request to the network device.
1 . A terminal device, comprising:
at least one processor; and
at least one memory including computer program code;
the at least one memory and the computer program code configured to, with the at least one processor, cause the terminal device to:
transmit, to a network device, in a UE assistance information, an indication of an availability of non-Small Data Transmission (SDT) data during a SDT procedure;
monitor for a response to the indication until expiration of a SDT failure timer; and
in response to absence of the response to the indication of the non-SDT data, perform an action comprising:
entering an idle state.
2 . The terminal device of claim 1 , wherein the non-SDT data comprises data available on a radio bearer not configured as allowed for SDT.
3 .- 4 . (canceled)
5 . The terminal device of claim 31 , wherein the terminal device is further caused to:
retransmit the indication upon expiration of a timer; or
retransmit the indication based on an indication from Non-Access Stratum (NAS).
6 . The terminal device of claim 31 , wherein:
the timer for the monitoring is stopped upon at least one of a cell reselection initiated by the terminal device or the reception of the response to the indication.
7 . The terminal device of claim 61 , wherein the response comprises at least one of:
an RRCResume message;
an RRCSetup message;
an RRCRelease message;
an RRCReleasewith suspendConfig message; or
an RRCReject message.
8 . (canceled)
9 . A method implemented in a terminal device, comprising:
transmitting, to a network device, in a UE assistance information, an indication of an availability of non-Small Data Transmission (SDT) data during a SDT procedure;
monitoring for a response to the indication until expiration of a SDT failure timer; and
in response to absence of the response to the indication, performing an action comprising:
entering an idle state.
10 . The method of claim 9 , wherein the non-SDT data comprises data available on a radio bearer not configured as allowed for SDT.
11 .- 12 . (canceled)
13 . The method of claim 9 , further comprising:
retransmitting the indication upon expiration of a timer; or
retransmitting the indication based on an indication from Non-Access Stratum (NAS).
14 . The method of claim 9 , wherein:
the timer for the monitoring is stopped upon at least one of a cell reselection initiated by the terminal device or the reception of the response to the indication.
15 . The method of claim 149 , wherein the response comprises at least one of:
an RRCResume message;
an RRCSetup message;
an RRCRelease message;
an RRCReleasewith suspendConfig message; or
an RRCReject message.
16 . (canceled)
17 . An apparatus implemented in a terminal device, comprising:
means for transmitting, to a network device, in a UE assistance information, an indication of an availability of non-Small Data Transmission (SDT) data during a SDT procedure;
means for monitoring for a response to the indication until expiration of a SDT failure timer; and
means for in response to absence of the response to the indication, performing an action comprising:
entering an idle state.
18 . A computer-readable storage medium having instructions stored thereon, the instructions, when executed on at least one processor, cause the at least one processor to perform the method of claim 9 .
19 . The apparatus of claim 17 , wherein the non-SDT data comprises data available on a radio bearer not configured as allowed for SDT.
20 . The apparatus of claim 17 , wherein:
the timer for the monitoring is stopped upon at least one of a cell reselection initiated by the terminal device or the reception of the response to the indication.
21 . The apparatus of claim 17 , wherein the response comprises at least one of:
a RRCResume message;
a RRCSetup message;
a RRCRelease message;
a RRCReleasewith suspendConfig message; or
a RRCReject message.