METHOD AND APPARATUS FOR ROBUST SMALL DATA TRANSMISSION IN A WIRELESS NETWORK
Small Data Transmission, SDT, data is transmitted from a base station, BS, to a user equipment, UE. The BS communicates a first mapping table and/or a second mapping table. The first and second mapping may include a range of Backoff Parameter Values, BPVs. The first mapping table describes the BPV range as a function of a data volume of the SDT data, and/or the second mapping table describes the BPV range as a function of a data priority. The UE receives the first mapping table and/or the second mapping table. The UE is set to an inactive state. The BS provides the SDT data. The BS sends a paging notification to the UE. The paging notification includes a data volume of the SDT data. The UE selects a backoff time according to the BPV range.
1 . A method for transmitting Small Data Transmission, SDT, data from a base station, BS, to a user equipment, UE, the method comprising:
communicating, by the BS, a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
receiving, by the UE, the first mapping table and/or the second mapping table;
setting the UE to an inactive state;
providing, by the BS, the SDT data;
sending, from the BS to the UE, a paging notification, the paging notification comprising a data volume of the SDT data; and
selecting, by the UE, a backoff time according to the BPV range.
2 . The method of claim 1 ,
wherein the first mapping table and/or the second mapping table is specific for each UE.
3 . The method of claim 1 , the paging notification further comprising a priority flag,
wherein the selecting, by the UE, is only performed when the priority flag indicates a high priority and a radio signal quality is above a predefined threshold.
4 . The method of claim 1 , further comprising:
performing, by the BS, a Random Access based SDT with the backoff time for the PRACH transmission according to the BPV range.
5 . A method for transmitting Small Data Transmission, SDT, data by a base station, BS, the method comprising:
communicating, by the BS, a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
providing the SDT data; and
when ana user equipment, UE, is in an inactive state, sending, from the BS to the UE, a paging notification, the paging notification comprising a data volume of the SDT data.
6 . The method of claim 5 , further comprising:
on a paging response, from the UE, performing a Random Access based SDT with the backoff time for the PRACH transmission according to the BPV range.
7 . A method for receiving Small Data Transmission, SDT, data by a user equipment, UE, the method comprising:
receiving a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
setting the UE to an inactive state;
receiving a paging notification, the paging notification comprising a data volume of the SDT data; and
selecting a backoff time according to the BPV range.
8 . A wireless communication system, configured for transmitting Small Data Transmission, SDT, data from a base station, BS, to a user equipment, UE, the wireless communication system being configured to perform operations comprising:
communicating, by the BS, a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
receiving, by the UE, the first mapping table and/or the second mapping table;
setting the UE to an inactive state;
providing, by the BS, the SDT data;
sending, from the BS to the UE, a paging notification, the paging notification comprising a data volume of the SDT data; and
selecting, by the UE, a backoff time according to the BPV range.
9 . A base station, BS, configured for transmitting Small Data Transmission, SDT, data by performing operations comprising:
communicating, by the BS, a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
providing the SDT data; and
when a user equipment, UE, is in an inactive state, sending, from the BS to the UE, a paging notification, the paging notification comprising a data volume of the SDT data.
10 . A user equipment, UE, configured for receiving Small Data Transmission, SDT, data by performing operations comprising:
receiving a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
setting the UE to an inactive state;
receiving a paging notification, the paging notification comprising a data volume of the SDT data; and
selecting a backoff time according to the BPV range.
11 . A non-transitory computer-readable storage medium having computer-executable instructions stored therein, which, when executed on a base station, BS, instructs the BS to transmit Small Data Transmission, SDT, data by performing operations comprising:
communicating, by the BS, a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
providing the SDT data; and
when a user equipment, UE, is in an inactive state, sending, from the BS to the UE, a paging notification, the paging notification comprising a data volume of the SDT data.
12 . A non-transitory computer-readable storage medium having a computer-executable instructions stored therein, which, when executed on a user equipment, UE, instructs the UE to receive Small Data Transmission, SDT, data by performing operations comprising:
receiving a first mapping table and/or a second mapping table, the first and second mapping table comprising a range of Backoff Parameter Values, BPVs,
the first mapping table describing the BPV range as a function of a data volume of the SDT data, and/or
the second mapping table describing the BPV range as a function of a data priority;
setting the UE to an inactive state;
receiving a paging notification, the paging notification comprising a data volume of the SDT data; and
selecting a backoff time according to the BPV range.