IP Library › Granted Patent US 12,279,332
Granted Patent B2
US 12,279,332 · App. 18/113,893 · Granted Apr 15, 2025

Subsequent data assistance information for small data transmission

Inventors: Kyungmin Park (Vienna, VA); Esmael Hejazi Dinan (McLean, VA); Taehun Kim (Fairfax, VA); Hyoungsuk Jeon (Centreville, VA); Jinsook Ryu (Oakton, VA); Peyman Talebi Fard (Vienna, VA)
Assignee: Ofinno, LLC
H04W76/30H04W28/0278H04W80/02
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,279,332
App. No.
18/113,893
Granted
Apr 15, 2025
Kind
B2
Abstract

A base station central unit receives, from a base station distributed unit, assistance information indicating whether subsequent data is expected for a small data transmission (SDT) procedure of a wireless device. The base station central unit transmits a radio resource control (RRC) release message to the wireless device based on the assistance information.

Claims (34)

1. A method comprising:

receiving, by a base station central unit (CU) from a wireless device via a base station distributed unit (DU) a radio resource control (RRC) request message associated with a small data transmission (SDT) procedure of the wireless device;

receiving, by the base station CU from the base station DU, assistance information indicating whether a subsequent SDT is expected for the SDT procedure; and

transmitting, to the wireless device and after a SDT of the SDT procedure, an RRC release message.

2. The method of claim 1 , further comprising communicating, by the base station CU with the wireless device and via the base station DU, one or more SDTs of the SDT procedure.

3. The method of claim 1 , wherein the assistance information is based on at least one assistance parameter received from the wireless device at the base station distributed unit via at least one medium access control (MAC) control element (CE).

4. The method of claim 1 , wherein the RRC request message is received in an RRC container.

5. The method of claim 4 , wherein the RRC container and the assistance information are received from the base station DU in a message.

6. The method of claim 1 , wherein the transmitting the RRC release message is based on determining that the SDT procedure is complete.

7. The method of claim 1 , further comprising determining to send the RRC release message based on the assistance information indicating that no subsequent SDT is expected.

8. The method of claim 1 , further comprising determining that the SDT procedure is complete based on the assistance information indicating that no subsequent SDT is expected.

9. A base station central unit (CU) comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the base station CU to perform operations comprising:

receiving, from a wireless device via a base station distributed unit (DU) a radio resource control (RRC) request message associated with a small data transmission (SDT) procedure of the wireless device;

receiving, from the base station DU, assistance information indicating whether a subsequent SDT is expected for the SDT procedure; and

transmitting, to the wireless device and after a SDT of the SDT procedure, an RRC release message.

10. The base station CU of claim 9 , wherein the operations further comprise communicating, with the wireless device and via the base station DU, one or more SDTs of the SDT procedure.

11. The base station CU of claim 9 , wherein the assistance information is based on at least one assistance parameter received from the wireless device at the base station distributed unit via at least one medium access control (MAC) control element (CE).

12. The base station CU of claim 9 , wherein the RRC request message is received in an RRC container.

13. The base station CU of claim 12 , wherein the RRC container and the assistance information are received from the base station DU in a message.

14. The base station CU of claim 9 , wherein the transmitting the RRC release message is based on determining that the SDT procedure is complete.

15. The base station CU of claim 9 , wherein the operations further comprise determining to send the RRC release message based on the assistance information indicating that no subsequent SDT is expected.

16. The base station CU of claim 9 , wherein the operations further comprise determining that the SDT procedure is complete based on the assistance information indicating that no subsequent SDT is expected.

17. A method comprising:

receiving, by a wireless device from a base station central unit (BS-CU), a first radio resource control (RRC) release message comprising configuration parameters of a small data transmission (SDT) procedure of the wireless device;

transmitting, by the wireless device to the BS-CU, an RRC request message for the SDT procedure;

transmitting, by the wireless device to a base station distributed unit (BS-DU),

one or more transport blocks based on the configuration parameters of the SDT procedure; and

a buffer status report indicating a data size associated with the SDT procedure; and

receiving, by the wireless device from the BS-CU, a second RRC release message, wherein the second RRC release message is based on assistance information received by the BS-CU, wherein the assistance information:

indicates whether subsequent data is expected for the SDT procedure; and

is based on the buffer status report.

18. The method of claim 17 , further comprising communicating, by the wireless device and via the base station DU, one or more SDTs of the SDT procedure.

19. The method of claim 17 , wherein the assistance information is based on at least one assistance parameter received from the wireless device at the base station distributed unit via at least one medium access control (MAC) control element (CE).

20. The method of claim 17 , wherein the RRC request message is transmitted in an RRC container.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2023
From: PARK, KYUNGMIN; DINAN, ESMAEL HEJAZI; KIM, TAEHUN; JEON, HYOUNGSUK; RYU, JINSOOK; TALEBI FARD, PEYMAN
To: OFINNO, LLC
Reel/Frame 065719/0219 →
Continuity (4)
Continuation 17696208 · Mar 16, 2022
Continuation PCTUS2021048467 · Aug 31, 2021
Provisional Application 63072751 · Aug 31, 2020
Related Publication 20230225005A1 · Jul 13, 2023
References Cited (95)
US 20090135769A1 · Sambhwani et al. · 2009 [cited by applicant]
US 20130170453A1 · Kim et al. · 2013 [cited by applicant]
US 20180139778A1 · Chou et al. · 2018 [cited by applicant]
US 20180176834A1 · Wei et al. · 2018 [cited by applicant]
US 20180234941A1 · Kim et al. · 2018 [cited by applicant]
US 20180317123A1 · Chen et al. · 2018 [cited by applicant]
US 20190074918A1 · Huang et al. · 2019 [cited by applicant]
US 20190200414A1 · Abraham et al. · 2019 [cited by applicant]
US 20190350019A1 · Wu · 2019 [cited by applicant]
US 20190372719A1 · Talarico et al. · 2019 [cited by applicant]
US 20200221531A1 · Gao et al. · 2020 [cited by applicant]
US 20200229235A1 · Lu et al. · 2020 [cited by applicant]
US 20210136646A1 · Tseng et al. · 2021 [cited by applicant]
US 20210160949A1 · Kim et al. · 2021 [cited by applicant]
US 20210259040A1 · Babaei · 2021 [cited by applicant]
US 20210410180A1 · Tsai et al. · 2021 [cited by applicant]
US 20220022247A1 · Agiwal et al. · 2022 [cited by applicant]
US 20220078872A1 · Shrestha et al. · 2022 [cited by applicant]
US 20220086944A1 · Kim · 2022 [cited by examiner]
US 20220132600A1 · Kim · 2022 [cited by examiner]
US 20220303946A1 · Kim · 2022 [cited by examiner]
US 20230189380A1 · Palat · 2023 [cited by examiner]
US 20230319941A1 · Liu · 2023 [cited by examiner]
US 20230337304A1 · Wu · 2023 [cited by examiner]
CN 104144467A · 2014 [cited by applicant]
CN 104811921A · 2015 [cited by applicant]
CN 104956721A · 2015 [cited by applicant]
CN 106658601A · 2017 [cited by applicant]
CN 108370606A · 2018 [cited by applicant]
CN 108476534A · 2018 [cited by applicant]
CN 108476535A · 2018 [cited by applicant]
CN 109819491A · 2019 [cited by applicant]
EP 3955690A1 · 2022 [cited by applicant]
WO 2019031427A1 · 2019 [cited by applicant]
WO 2020036460A1 · 2020 [cited by applicant]
WO 2020166817A1 · 2020 [cited by applicant]
WO 2020171369A1 · 2020 [cited by applicant]
WO 2021045464A1 · 2021 [cited by applicant]
WO 2021150015A1 · 2021 [cited by applicant]
R2-161314; Release Assistance Indicator; 3GPP TSG-RAN2 Meeting #93; St. Julian, Malta, Feb. 15-19, 2016; Agenda Item: 7.16.2.1 Radio Resource Control—RRC; Source: Ericsson; Title: Release Assistance Indicator; Document … [cited by applicant]
R2-1904914; Efficient Transition to IDLE and Inactive; 3GPP TSG-RAN WG2 Meeting #105bis; Xi'an, China, Apr. 8-12, 2019; Agenda item: 11.11.3; Source: Samsung; Title: Efficient Transition to Idle/Inactive; Document for: … [cited by applicant]
Japanese Office Action, mailed Aug. 14, 2023, in JP Patent Application No. 2023-513733. [cited by applicant]
Andres-Maldonado et al.; Narrowband IoT Data Transmission Procedures for Massive Machine-Type Communications; Massive Machine-Type Communications; Nov. 27, 2017; IEEE. [cited by applicant]
Korean Office Action, mailed Apr. 16, 2023, in KR Patent Application No. 2023-7009554. [cited by applicant]
Chinese Office Action, mailed Oct. 28, 2023, in CN Patent Application No. 2021800716005. [cited by applicant]
R2-2007746; 3GPP TSG-RAN WG2 Meeting #111e; Aug. 17-28, 2020; Source: Xiaomi; Title: considerations on small data transmission procedure in RRC_inactive; Document for: Discussion and Approval; Agenda Item: 8.6.2. [cited by applicant]
R2-2007747; 3GPP TSG-RAN WG2 Meeting #111e; Aug. 17-28, 2020; Source: Xiaomi; Title: UL transmission procedure using Pre-configured PUSCH resources in RRC_inactive; Document for: Discussion and Approval; Agenda Item: 8.… [cited by applicant]
R2-1906790; (Resubmission of R2-1904914); 3GPP TSG-RAN WG2 Meeting #106; Reno, Nevada, USA, May 13-17, 2019; Agenda item: 11.11.3; Source: Samsung; Title: Efficient Transition to Idle/Inactive; Document for: Discussion … [cited by applicant]
R2-2006550; 3GPP TSG-RAN WG2 Meeting#111-electronic; E-Meeting, Aug. 17-28, 2020; Source: vivo; Title: General Considerations on Small Data Transmission; Agenda Item: 8.6.2; Document for: Discussion and Decision. [cited by applicant]
R2-2006551; 3GPP TSG-RAN WG2 Meeting#111-electronic; E-Meeting, Aug. 17-28, 2020; Source: vivo; Title: Supporting Small Data Transmission via RA Procedure; Agenda Item: 8.6.2; Document for: Discussion and Decision. [cited by applicant]
R2-2006582; 3GPP TSG-RAN WG2 Meeting #111-e; Electronic, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Huawei, HiSilicon; Title: Common aspects between RACH and CG-based scheme; Document for: Discussion. [cited by applicant]
R2-2006583; 3GPP TSG-RAN WG2 Meeting #111-e; Electronic, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Huawei, HiSilicon; Title: Small data transmission with RA-based schemes; Document for: Discussion. [cited by applicant]
R2-2006713; 3GPP TSG RAN WG2 Meeting #111-e; Electronic meeting, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Intel Corporation; Title: SDT mechanism on RRC/non-RRC based approaches and RACH requirements; Document for:… [cited by applicant]
R2-2006714; 3GPP TSG RAN WG2 Meeting #111-e; Electronic meeting, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Intel Corporation; Title: Radio bearer configuration for SDT considering UE context relocation and CU/DU spl… [cited by applicant]
R2-2006772; 3GPP TSG-RAN2 Meeting #111 Electronic; Aug. 17-Aug. 28, 2020; Agenda item: 8.6.2; Source: Samsung; Title: Random Access based Small Data Transmission—Signaling Flow; Document for: Discussion & Decision. [cited by applicant]
R2-2006773; 3GPP TSG-RAN2 Meeting #111 Electronic; Aug. 17-Aug. 28, 2020; Agenda item: 8.6.2; Source: Samsung; Title: Random Access based Small Data Transmission—Details; Document for: Discussion & Decision. [cited by applicant]
R2-2006800; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Agenda Item: 8.6.2; Source: Panasonic; Title: Handling of small data transmission in RRC_INACTIVE; Document for: Discussion, Decision. [cited by applicant]
R2-2006824; 3GPP TSG-RAN WG2 Meeting#111-e; Online, Aug. 17-Aug. 28, 2020; Agenda Item: 8.6.2; Source: Panasonic; Title: The RACH-Based Small Data Transmission; Document for: Discussion, Decision. [cited by applicant]
R2-2006829; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Agenda Item: 8.6.2; Source: MediaTek Inc.; Title: Requirements and Solutions for Inactive Small Data Transmission; Document for: Discussion… [cited by applicant]
R2-2006830; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Agenda Item: 8.6.2; Source: MediaTek Inc.; Title: Subsequent Transmission of Small data in Inactive; Document for: Discussion and decision. [cited by applicant]
R2-2006836; 3GPP TSG-RAN WG2 #111-e; E-meeting, Aug. 2020; Agenda Item: 8.6.2; Source: OPPO; Title: Procedure of Small Data Transmission; Document for: Discussion, Decision. [cited by applicant]
R2-2006837; 3GPP TSG-RAN WG2 #111-e; E-meeting, Aug. 2020; Agenda Item: 8.6.2; Source: OPPO; Title: The Conditions for Small Data Transmission in Inactive State; Document for: Discussion, Decision. [cited by applicant]
R2-2006845; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-Aug. 28, 2020; Agenda Item: 8.6.2; Source: ITL; Title: RACH based Small data transmission; Document for: Discussion and decision. [cited by applicant]
R2-2006865; 3GPP TSG-RAN WG2 Meeting #111-e; Online, Aug. 17-28, 2020; Agenda Item: 8.6.2 (UL small data transmissions for RACH-based schemes); Source: Fujitsu; Title: Topics for small data transmission in Inactive; Doc… [cited by applicant]
R2-2006991; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Source: CATT; Title: Requirements and Scopes of Small Data Transmission; Agenda Item: 8.6.2; Document for: Discussion and Decision. [cited by applicant]
R2-2006992; 3GPP TSG-RAN WG2 #111-e; Electronic meeting, Aug. 17-Aug. 28, 2020; Source: CATT; Title: General Procedure Analysis for Small Data transmissions; Agenda Item: 8.6.2; Document for: Discussion and Decision. [cited by applicant]
R2-2007047; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Spreadtrum Communications; Title: Discussion on UL small data transmissions for RACH-based schemes; Document fo… [cited by applicant]
R2-2007069; 3GPP TSG-RAN WG2 #111-e; Online meeting, Aug. 17-28, 2020; Title: Small data transmission in RRC_INACTIVE state; Source: ETRI; Agenda item: 8.6.2; Document for: Discussion. [cited by applicant]
R2-2007126; 3GPP TSG-RAN WG2 Meeting #111-e; Online, Aug. 17-28, 2020; Agenda Item: 8.6.2; Source: Apple; Title: Small data transmission via RACH procedure; Document for: Discussion and Decision. [cited by applicant]
R2-2007180; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-Aug. 28, 2020; Agenda Item: 8.6.2; Source: Sony; Title: Discussion on different aspects of UL Small data transmissions in NR; Document for: Discussio… [cited by applicant]
R2-2007195; 3GPP TSG-RAN WG2 #111 electronic; E-Meeting, Aug. 17-Aug. 28, 2020; Source: NEC; Agenda item: 8.6.2; Title: Initial consideration on RACH based SDT; Document for: Discussion. [cited by applicant]
R2-2007197; 3GPP TSG-RAN WG2 #111-e; Online, Aug. 17-28, 2020; Agenda Item: 8.6.2; Source: Ericsson; Title: 2-step and 4-step based RACH Small Data transmission; Document for: Discussion, Decision. [cited by applicant]
R2-2007432; 3GPP TSG-WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Source: CMCC; Title: Scheme selection and scheme switch; Agenda item: 8.6.2; Document for: Discussion. [cited by applicant]
R2-2007433; 3GPP TSG-WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Source: CMCC; Title: Basic procedure for data transmission in RRC inactive state; Agenda item: 8.6.2; Document for: Discussion. [cited by applicant]
R2-2007448; 3GPP TSG-RAN2#111e; Aug. 17-28, 2020; Source: ZTE Corporation, Sanechips; Title: Selection between RRC-based and RRC-less solutions for IDT; Agenda item: 8.6.2; Document for: Discussion and Decision. [cited by applicant]
R2-2007449; 3GPP TSG-RAN2#111e; Aug. 17-28, 2020; Source: ZTE Corporation, Sanechips; Title: Details of RRC-based IDT; Agenda item: 8.6.2; Document for: Discussion and Decision. [cited by applicant]
R2-2007469; 3GPP TSG-RAN WG2 Meeting RAN2#111 electronic; Online, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Lenovo, Motorola Mobility; Title: UL small data transmissions in 2-step RACH and 4-step RACH; Document for:… [cited by applicant]
R2-2007479; 3GPP TSG-RAN WG2 Meeting #111 electronic; E-meeting, Aug. 17-Aug. 28, 2020; Agenda tem: 8.6.2; Source: Lenovo, Motorola Mobility; Title: The basic principle for small data transmissions; Document for: Discus… [cited by applicant]
R2-2007489; 3GPP TSG-RAN WG2 Meeting #111e; Online, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Nokia, Nokia Shanghai Bell; Title: Small Data Transmission over pre-configured PUSCH resources; WID/SID: NR_SmallData_INA… [cited by applicant]
R2-2007540; 3GPP TSG-RAN WG2 Meeting #111e; Online, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Qualcomm Incorporated; Title: RACH based NR small data transmission; WID/SID: NR_SmallData_INACTIVE-Core—Release 17; Docu… [cited by applicant]
R2-2007541; 3GPP TSG-RAN WG2 Meeting #111e; Online, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Qualcomm Incorporated; Title: RACH based uplink small data transmission with or without anchor relocation; WID/SID: NR_Sm… [cited by applicant]
R2-2007564; 3GPP TSG-RAN WG2 Meeting #111 Electronic; Elbonia, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Nokia, Nokia Shanghai Bell; Title: Design of RACH-based Small Data Transmission schemes and common aspects; WI… [cited by applicant]
R2-2007613; 3GPP Ran WG2 Meeting #111-e; Aug. 17-28, 2020; Agenda Item: 8.6.2; Source: InterDigital; Title: RACH-based UL small data transmission procedure; Document for: Discussion, Decision. [cited by applicant]
R2-2007741; 3GPP TSG-RAN WG2 Meeting #111 electronic; Electronic, Aug. 17-Aug. 28, 2020; Agenda Item: 8.6.2; Source: ASUSTek; Title: Discussion on NR RRC for small data transmission; Document for: Discussion and Decisio… [cited by applicant]
R2-2007742; 3GPP TSG-RAN WG2 Meeting #111 electronic; Electronic, Aug. 17-Aug. 28, 2020; Agenda Item: 8.6.2; Source: ASUSTeK; Title: Discussion on RA procedure for small data transmission; Document for: Discussion and D… [cited by applicant]
R2-2007838; 3GPP TSG-RAN WG2#111; online, Aug. 17-28, 2020; Agenda item: 8.6.2; Source: Potevio; Title: Discussion on small data transmission; Document for: Discussion & Decision. [cited by applicant]
R2-2007953; 3GPP TSG-RAN WG2 Meeting #111 electronic; Online, Aug. 17-28, 2020; Agenda item: 8.6.2. UL small data transmissions for RACH-based schemes; Source: Sierra Wireless S.A.; Title: Techniques for enabling NR sma… [cited by applicant]
R2-2008013; 3GPP TSG-RAN WG2 #111e; Aug. 17-Aug. 28, 2020; Agenda item: 8.6.2 (NR_SmallData_INACTIVE-Core); Source: LG Electronics Inc.; Title: Issues in dependency to other groups; Document for: Discussion and Decision. [cited by applicant]
R2-2008015; 3GPP TSG-RAN WG2 #111e; Aug. 17-Aug. 28, 2020; Agenda item: 8.6.2 (NR_SmallData_INACTIVE-Core); Source: LG Electronics Inc.; Title: Considerations on UL small data transmission; Document for: Discussion and … [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2021/048467 mailed on Dec. 7, 2021. [cited by applicant]
R2-2006713; 3GPP TSG RAN WG2 Meeting #111-e; Electronic Meeting, Aug. 17-18, 2020; Agenda Item: 8.6.2; Source: Intel Corporation; Title: SDT Mechanism on TTC/non-RRC based approaches and RACH requirements; Document for:… [cited by applicant]
R2-2105885; 3GPP TSG RAN WG2 Meeting #114 electronic online, May 19-May 27, 2021; Agenda Item: 8.6.3; Source: Qualcomm Incorporated; Title: Discussion on open issues of SDT; WID/SID: NR_SmallData_INACTIVE-Core-Release 1… [cited by applicant]
3GPP TS 38.300 V17.0.0 (Mar. 2022); Technical Specification; 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; NR and NG-RAN Overall Description; Stage 2; (Release 17). [cited by applicant]
3GPP TS 38.401 V17.0.0 (Apr. 2022); Technical Specification; 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Architecture description; (Release 17). [cited by applicant]
3GPP TS 38.473 V17.0.0 (Apr. 2022); Technical Specification; 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; F1 application protocol (F1AP); (Release 17). [cited by applicant]
Cited By (1)
US 12,641,670