Granted Patent B2

US 12,538,170 · App. 18/247,123 · Granted Jan 27, 2026

Inventor: Jarkko Eskelinen (Oulu, FI)

Assignee: MEDIATEK SINGAPORE PTE. LTD.

H04W28/06H04L1/1854H04L1/1887H04W28/0268H04W80/02

Abstract

Claims (32)

1 . A method, comprising:

generating a Packet Data Convergence Protocol (PDCP) data protocol data unit (PDU) containing a plurality of service data units (SDUs); and

transferring the PDCP data PDU to a receiver;

wherein the generating of the PDCP data PDU comprises concatenating the plurality of SDUs in generating the PDCP data PDU;

wherein the concatenating of the plurality of SDUs comprises selectively concatenating one or more flows of SDUs in generating the PDCP data PDU such that a first flow of SDUs associated with a first quality-of-service (QOS) identifier (ID) is concatenated and a second flow of SDUs associated with a second QoS ID is not concatenated,

wherein the generating of the PDCP data PDU comprises generating the PDCP data PDU using a PDCP data PDU format which has a multi-PDU (mPDU) container field containing a plurality of plain mPDUs from one or more data flows.

2 . The method of claim 1 , wherein the plurality of SDUs comprise a plurality of consecutive upper-layer SDUs related to a same Service Data Adaptation Protocol (SDAP) data flow.

3 . The method of claim 1 , wherein the first flow is associated with a non-time-critical traffic and the second flow is associated with a real-time traffic or a time-critical traffic.

4 . The method of claim 1 , wherein a number of the plurality of SDUs that are concatenated is based on available SDUs in a PDCP buffer at a time of the concatenating.

5 . The method of claim 1 , wherein a number of the plurality of SDUs that are concatenated is based on either or both of:

an amount of data being concatenated based on a counter, and

an amount of time elapsed from a previous concatenation based on a timer.

6 . The method of claim 1 , wherein a predetermined bit in a header of the PDCP data PDU is set to indicate the PDCP data PDU format as having the mPDU container field that contains the plurality of plain mPDUs.

7 . The method of claim 1 , wherein the PDCP data PDU format is agreed with the network by signaling using a PDCP control PDU.

8 . The method of claim 1 , wherein the transferring of the PDCP data PDU comprises dynamically indicating the PDCP data PDU format using a header in a data field of the PDCP data PDU.

9 . The method of claim 1 , wherein the plain mPDUs contain the plurality of SDUs associated with a PDU session.

10 . The method of claim 1 , wherein the generating of the PDCP data PDU comprises generating the PDCP data PDU using a PDCP data PDU format which has a plain mPDU field configured to contain the plurality of SDUs from an Internet Protocol (IP) flow or a Service Data Adaptation Protocol (SDAP) data flow.

11 . The method of claim 10 , wherein a predetermined bit in a header of the PDCP data PDU is set to indicate the PDCP data PDU format as having the plain mPDU field that contains the plurality of SDUs.

12 . The method of claim 10 , wherein the PDCP data PDU format is agreed with the network by signaling using a PDCP control PDU.

13 . The method of claim 10 , wherein the transferring of the PDCP data PDU comprises dynamically indicating the PDCP data PDU format using a header in a data field of the PDCP data PDU.

14 . The method of claim 10 , wherein a header in the plain mPDU field is set to indicate the PDCP data PDU format as having the plain mPDU field that contains the plurality of SDUs.

15 . The method of claim 10 , wherein the plain mPDU field contains a Service Data Adaptation Protocol (SDAP) SDU associated with a PDU session.

16 . An apparatus implementable in a user equipment (UE), comprising:

a transceiver configured to wirelessly communicate with a network; and

a processor coupled to the transceiver and configured to perform operations comprising:

generating a Packet Data Convergence Protocol (PDCP) data protocol data unit (PDU) containing a plurality of service data units (SDUs); and

transferring the PDCP data PDU to a receiver,

wherein, in generating the PDCP data PDU, the processor is configured to perform either:

concatenating the plurality of SDUs in generating the PDCP data PDU; or

generating the PDCP data PDU using a PDCP data PDU format which has a multi-PDU (mPDU) container field or a plain mPDU field configured to contain the plurality of SDUs;

wherein, in concatenating the plurality of SDUs, the processor selectively concatenates one or more flows of SDUs in generating the PDCP data PDU such that a first flow of SDUs associated with a first quality-of-service (QOS) identifier (ID) is concatenated and a second flow of SDUs associated with a second QoS ID is not concatenated,

wherein the generating of the PDCP data PDU comprises generating the PDCP data PDU using a PDCP data PDU format which has a multi-PDU (mPDU) container field containing a plurality of plain mPDUs from one or more data flows.

Assignments (1)

Continuity (2)

References Cited (43)