Granted Patent B2

US 12,603,782 · App. 17/285,991 · Granted Apr 14, 2026

Inventors: Anand Raghawa Prasad (Tokyo, JP); Sander De Kievit (Tokyo, JP); Hironori Ito (Tokyo, JP); Takahito Yoshizawa (Tokyo, JP)

Assignee: NEC CORPORATION

H04L9/3242H04L69/22H04L69/324H04W12/106H04L2209/80

Abstract

Claims (26)

1 . A User Equipment (UE) comprising:

a memory configured to store instructions; and

a processor configured to execute the instructions to:

generate a Packet Data Convergence Protocol (PDCP) data Protocol Data Unit (PDU); and

perform transmission of the PDCP data PDU to a receiver using a radio interface,

wherein a format of the PDCP data PDU is arranged in order of a Sequence Number (SN), security information, and data, and

wherein the security information comprises a plurality of bits and indicates that integrity protection is used or not, and the security information further indicates to derive two or more parameters indicating protection of the data.

2 . The UE of claim 1 , wherein the security information indicates that no integrity protection is used when the security information comprises a zero value.

3 . The UE of claim 1 , wherein the format of the PDCP data PDU is arranged in order of the SN, the security information, the data, and a Message Authentication Code for Integrity (MAC-I).

4 . The UE of claim 1 , wherein the security information further indicates, by the plurality of bits, information other than whether a Message Authentication Code (MAC) is used.

5 . A method of a User Equipment (UE), the method comprising:

generating a Packet Data Convergence Protocol (PDCP) data Protocol Data Unit (PDU); and

performing transmission of the PDCP data PDU to a receiver using a radio interface,

wherein a format of the PDCP data PDU is arranged in order of a Sequence Number (SN), security information, and data, and

wherein the security information comprises a plurality of bits and indicates that integrity protection is used or not, and the security information further indicates to derive two or more parameters indicating protection of the data.

6 . The method of claim 5 , wherein the security information indicates that no integrity protection is used when the security information comprises a zero value.

7 . The method of claim 5 , wherein the format of the PDCP data PDU is arranged in order of the SN, the security information, the data, and a Message Authentication Code for Integrity (MAC-I).

8 . The method of claim 5 , wherein the security information further indicates, by the plurality of bits, information other than whether a Message Authentication Code (MAC) is used.

9 . A method of a Radio Access Network (RAN) node, the method comprising:

generating a Packet Data Convergence Protocol (PDCP) data Protocol Data Unit (PDU); and

performing transmission of the PDCP data PDU to a User Equipment (UE),

wherein a format of the PDCP data PDU is arranged in order of a Sequence Number (SN), security information, and data, and

wherein the security information comprises a plurality of bits and indicates that integrity protection is used or not, and the security information further indicates to derive two or more parameters indicating protection of the data.

10 . The method of claim 9 , wherein the security information indicates that no integrity protection is used when the security information comprises a zero value.

11 . The method of claim 9 , wherein the format of the PDCP data PDU is arranged in order of the SN, the security information, the data, and a Message Authentication Code for Integrity (MAC-I).

12 . The method of claim 9 , wherein the security information further indicates, by the plurality of bits, information other than whether a Message Authentication Code (MAC) is used.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (33)