Method and apparatus for data indication
Embodiments of the present application are directed to a method and apparatus for data indication in an MT-EDT procedure. In an embodiment of the present application, the method includes receiving DL data from a base station in an MT-EDT procedure; and determining whether to transmit UL data associated with the DL data in the MT-EDT procedure.
1. A user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive downlink (DL) data from a base station in a mobile terminated (MT) early data transmission (EDT) (MT-EDT) procedure;
determine whether to transmit uplink (UL) data associated with the DL data in the MT-EDT procedure; and
transmit information indicating whether the UL data associated with the DL data is to be transmitted.
2. The UE of claim 1 , wherein:
the information indicates whether the UL data associated with the DL data is to be transmitted to a core network (CN) node by non-access stratum (NAS) signaling.
3. The UE of claim 1 , wherein the at least one processor is further configured to cause the UE to:
receive, from a core network (CN) node by non-access stratum (NAS) signaling, information indicating that the UL data associated with the DL data is to be transmitted.
4. The UE of claim 2 , wherein the NAS signaling is transmitted in an Attach procedure or a tracking area updating (TAU) procedure.
5. The UE of claim 2 , wherein the CN node is a mobility management entity (MME), a serving-gateway (S-GW), an access and mobility management function (AMF), or user plane function (UPF).
6. The UE of claim 1 , wherein the information indicating whether the UL data associated with the DL data is to be transmitted is per UE level or per application-level.
7. The UE of claim 6 , wherein, if the information indicating whether the UL data associated with the DL data is to be transmitted is per application-level, the information is associated with the service, traffic, bearer or logical channel level of the UE.
8. The UE of claim 1 , wherein the information indicating whether the UL data associated with the DL data is to be transmitted indicates:
the UL data associated with the DL data is to be transmitted;
the UL data associated with the DL data is not to be transmitted; or
whether to transmit the UL data associated with the DL data is uncertain.
9. The UE of claim 1 , wherein:
the information includes time information for transmitting the UL data.
10. A base station, comprising:
a memory; and
at least one processor coupled with the memory and configured to cause the base station to:
transmit downlink (DL) data to a user equipment (UE) in a mobile terminated (MT) early data transmission (EDT) (MT-EDT) procedure;
receive a paging message or a DL data arriving message from a core network (CN) node in the MT-EDT procedure, wherein the paging message or the DL data arriving message includes information indicating whether the UE will transmit uplink (UL) data associated with the DL data; and
determine whether to receive the UL data associated with the DL data based on the paging message or the DL data arriving message.
11. The apparatus base station of claim 10 , wherein the at least one processor is further configured to cause the base station to:
transmit the information indicating whether the UE will transmit the UL data associated with the DL data to the CN node.
12. The base station of claim 10 , wherein the CN node is a mobility management entity (MME), a serving-gateway (S-GW), an access and mobility management function (AMF), or a user plane function (UPF).
13. The base station of claim 10 , wherein the information indicating whether the UE will transmit the UL data associated with the DL data is per UE level or per application-level.
14. The base station of claim 13 , wherein, if the information indicating whether the UE will transmit the UL data associated with the DL data is per application-level, the information is associated with the service, traffic, bearer or logical channel level of the UE.
15. The base station of claim 10 , wherein the information indicating whether the UE will transmit the UL data associated with the DL data indicates that:
the UE will transmit the UL data associated with the DL data;
the UE will not transmit the UL data associated with the DL data; or
whether the UE will transmit the UL data associated with the DL data is uncertain.
16. The base station of claim 10 , wherein the at least one processor is further configured to cause the base station to:
receive information indicating whether the UE will transmit the UL data associated with the DL data from the UE, wherein the information includes time information for transmitting the UL data.
17. A method comprising:
determining whether a user equipment (UE) will transmit uplink (UL) data associated with downlink (DL) data from a base station in a mobile terminated (MT) early data transmission (EDT) (MT-EDT) procedure based on received information; and
transmitting information indicating whether the UE will transmit the UL data associated with the DL data to the base station.
18. The method of claim 17 , wherein the information indicating whether the UE will transmit the UL data associated with the DL data is transmitted via a paging message or a DL data arriving message.
19. The method of claim 17 , wherein the received information is received from the UE via Non-access stratum (NAS) signaling and comprises the information indicating whether the UE will transmit the UL data associated with the DL data.
20. The method of claim 19 , wherein the NAS signaling is received in an Attach procedure or a tracking area updating (TAU) procedure.