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EP-4736572-A1 - EXTENDED REALITY (XR) IN DUAL CONNECTIVITY

EP4736572A1EP 4736572 A1EP4736572 A1EP 4736572A1EP-4736572-A1

Abstract

A method may include receiving, by a first base station from a user plane function (UPF), a plurality of protocol data units (PDUs) associated with a data burst of a wireless device, wherein the data burst comprises a plurality of PDU sets and an indication that a first PDU of the plurality of PDUs is an end of the data burst. The method may also include sending, by the first base station to a second base station, a general packet radio service (GPRS) tunnelling protocol (GTP) protocol data unit (PDU) comprising a field indicating the end of the data burst.

Inventors

  • XU, JIAN
  • KIM, TAEHUN
  • Dinan, Esmael Hejazi
  • PARK, KYUNGMIN
  • FILIN, STANISLAV
  • TSAI, Hsin-Hsi

Assignees

  • Ofinno, LLC

Dates

Publication Date
20260506
Application Date
20240701

Claims (20)

  1. 1. A method, comprising: receiving, by a first base station from a user plane function (U PF): a plurality of protocol data units (P D Us) associated with a data burst of a wireless device, wherein the data burst comprises a plurality of PDU sets; and an indication that a first PDU of the plurality of PDUs is an end of the data burst; and sending, by the first base station to a second base station, a general packet radio service (GPRS) tunnelling protocol (GTP) protocol data unit (PDU) comprising a field indicating the end of the data burst.
  2. 2. The method of claim 1 , wherein the first PDU comprises a packet and the indication.
  3. 3. The method of claim 1 or claim 2, wherein the first base station is a master base station or a secondary base station of the wireless device.
  4. 4. The method of any one of claims 1 to 3, wherein the second base station is a secondary base station or a master base station of the wireless device.
  5. 5. The method of any one of claims 1 to 4, wherein the wireless device is dual connected via the first base station and the second base station.
  6. 6. The method of any one of claims 1 to 5, wherein a PDCP PDU comprise the first PDU.
  7. 7. The method of claim 6, wherein the GTP PDU comprises the PDCP PDU.
  8. 8. The method of any one of claims 1 to 7, wherein the field indicating the end of the data burst is in a GTP header of the GTP PDU.
  9. 9. The method of any one of claims 1 to 8, wherein the second base station determines to send to the wireless device, a medium access control control element (MAC CE) based on the field.
  10. 10. The method of any one of claims 1 to 9, wherein the second base station sends based on the field, to the wireless device, a medium access control control element (MAC CE) indicating to trigger power saving mode for the wireless device.
  11. 11. The method of any one of claims 1 to 10, wherein the first base station sends to its lower layer a second field indicating the end of the data burst.
  12. 12. The method of any one of claims 1 to 11 , wherein the first base station sends, to the wireless device, a medium access control control element (MAC CE) indicating to trigger power saving mode for the wireless device.
  13. 13. The method of any one of claims 1 to 12, wherein the first base station sends to the wireless device comprising: the PDCP PDU; the packet; or the first PDU.
  14. 14. The method of any one of claims 1 to 13, wherein the wireless device receives the plurality of PDUs associated with the data burst via the first base station and the second base station.
  15. 15. The method of any one of claims 1 to 14, wherein first one or more PDU sets of the plurality of PDU sets are served by the first base station;
  16. 16. The method of any one of claims 1 to 15, wherein second one or more PDU sets of the plurality of PDU sets are served by the second base station;
  17. 17. The method of claim 15, wherein the first one or more PDU sets of the plurality of PDU sets are mapped to first one or more QoS flows;
  18. 18. The method of claim 16, wherein the second one or more PDU sets of the plurality of PDU sets are mapped to second one or more QoS flows;
  19. 19. The method of any one of claims 15 to 18, wherein the first one or more PDU sets of the plurality of PDU sets are mapped to first one or more DRBs;
  20. 20. The method of any one of claims 16 to 19, wherein the second one or more PDU sets of the plurality of PDU sets are mapped to second one or more DRBs;

Description

TITLE Extended Reality (XR) in Dual Connectivity CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Application No. 63/524,161, filed June 29, 2023, which is hereby incorporated by reference in its entirety. BRIEF DESCRIPTION OF THE DRAWINGS [0002] Examples of several of the various embodiments of the present disclosure are described herein with reference to the drawings. [0003] FIG. 1A and FIG. 1B illustrate example mobile communication networks in which embodiments of the present disclosure may be implemented. [0004] FIG. 2A and FIG. 2B respectively illustrate a New Radio (NR) user plane and control plane protocol stack. [0005] FIG. 3 illustrates an example of services provided between protocol layers of the NR user plane protocol stack of FIG. 2A. [0006] FIG. 4A illustrates an example downlink data flow through the NR user plane protocol stack of FIG. 2A. [0007] FIG. 4B illustrates an example format of a MAC subheader in a MAC PDU. [0008] FIG. 5A and FIG. 5B respectively illustrate a mapping between logical channels, transport channels, and physical channels for the downlink and uplink. [0009] FIG. 6 is an example diagram showing RRC state transitions of a UE. [0010] FIG. 7 illustrates an example configuration of an NR frame into which OFDM symbols are grouped. [0011] FIG. 8 illustrates an example configuration of a slot in the time and frequency domain for an NR carrier. [0012] FIG. 9 illustrates an example of bandwidth adaptation using three configured BWPs for an NR carrier. [0013] FIG. 10A illustrates three carrier aggregation configurations with two component carriers. [0014] FIG. 10B illustrates an example of how aggregated cells may be configured into one or more PUCCH groups. [0015] FIG. 11A illustrates an example of an SS/PBCH block structure and location. [0016] FIG. 11 B illustrates an example of CSI-RSs that are mapped in the time and frequency domains. [0017] FIG. 12A and FIG. 12B respectively illustrate examples of three downlink and uplink beam management procedures. [0018] FIG. 13A, FIG. 13B, and FIG. 13C respectively illustrate a four-step contention-based random access procedure, a two-step contention-free random access procedure, and another two-step random access procedure. [0019] FIG. 14A illustrates an example of CORESET configurations fora bandwidth part. [0020] FIG. 14B illustrates an example of a CCE-to-REG mapping for DCI transmission on a CORESET and PDCCH processing. [0021] FIG. 15 illustrates an example of a wireless device in communication with a base station. [0022] FIG. 16A, FIG. 16B, FIG. 16C, and FIG. 16D illustrate example structures for uplink and downlink transmission. [0023] FIG. 17A is an example diagram of an aspect of an embodiment of the present disclosure. [0024] FIG. 17B is an example diagram of an aspect of an embodiment of the present disclosure. [0025] FIG. 18 is an example diagram of an aspect of an embodiment of the present disclosure. [0026] FIG. 19 is an example diagram of an aspect of an embodiment of the present disclosure. [0027] FIG. 20A and 20B are example diagrams of an aspect of an embodiment of the present disclosure. [0028] FIG. 21 is an example diagram of an aspect of an embodiment of the present disclosure. [0029] FIGS. 22A, 22B, 22C, and 22D are example diagrams of an aspect of an embodiment of the present disclosure. [0030] FIG. 23 is an example diagram of an aspect of an embodiment of the present disclosure. [0031] FIG. 24 is an example diagram of an aspect of an embodiment of the present disclosure [0032] FIG. 25 is an example diagram of an aspect of an embodiment of the present disclosure. [0033] FIG. 26 is an example diagram of an aspect of an embodiment of the present disclosure. [0034] FIG. 27 is an example diagram of an aspect of an embodiment of the present disclosure. [0035] FIG. 28 is an example diagram of an aspect of an embodiment of the present disclosure. [0036] FIG. 29 is an example diagram of an aspect of an embodiment of the present disclosure. [0037] FIG. 30 is an example diagram of an aspect of an embodiment of the present disclosure. [0038] FIG. 31 is an example diagram of an aspect of an embodiment of the present disclosure. [0039] FIG. 32 is an example diagram of an aspect of an embodiment of the present disclosure. [0040] FIG. 33 is an example diagram of an aspect of an embodiment of the present disclosure [0041] FIGS. 34A and 34B are example diagrams of an aspect of an embodiment of the present disclosure. DETAILED DESCRIPTION [0042] In the present disclosure, various embodiments are presented as examples of how the disclosed techniques may be implemented and/or how the disclosed techniques may be practiced in environments and scenarios. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the scope. In fact, after reading the description, it will be apparent to one skilled in