# US 2025/0097281 A1 · Signaling of protocol data unit set information

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2025/0097281 A1
- Document ID: US20250097281A1
- Status: Published application
- Kind: A1
- Application number: 18/468,314
- Filed: 2023-09-15
- Published: 2025-03-20
- Earliest claimed: 2023-09-15
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Liangping MA; Nikolai Konrad LEUNG; Imed BOUAZIZI; Thomas STOCKHAMMER
- Web page: https://patentgrep.com/patent/US20250097281A1

## CPC

- H04L 65/65: Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
- H04L 69/22: Parsing or analysis of headers
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may transmit, to a second network node during a first time period, at least one packet of a first protocol data unit (PDU) set, the at least one packet of the first PDU set comprising PDU set information associated with a second PDU set. The first network node may transmit, to the second network node during a second time period that occurs subsequent to the first time period, at least one packet of the second PDU set. Numerous other aspects are described.

## Claims

### Claim at position 1

1-19. (canceled)

### Claim 20

An apparatus for wireless communication at a user equipment (UE), comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, the one or more processors individually or collectively configured to configured to cause the apparatus to:
receive, from a network node during a first time period, at least one packet of a first protocol data unit (PDU) set, the at least one packet of the first PDU set comprising PDU set information associated with a second PDU set;
transmit, to the network node, a portion of the PDU set information, wherein the portion of the PDU set information comprises a PDU set size (PSSize) associated with the second PDU set; and
receive, in association with the portion of the PDU set information and during a second time period that occurs subsequent to the first time period, at least one packet of the second PDU set.

### Claim 21 (depends on 20)

The apparatus of claim 20, wherein the at least one packet of the first PDU set indicates an identifier associated with the second PDU set.

### Claim 22 (depends on 21)

The apparatus of claim 21, wherein the identifier comprises a PDU set sequence number (PSSN).

### Claim 23 (depends on 20)

The apparatus of claim 20, wherein the PDU set information indicates the PDU set size (PSSize) associated with the second PDU set and one or more of:
a PDU set sequence number (PSSN) associated with the second PDU set,
a PDU set importance (PSI) associated with the second PDU set,
an end of a data burst (EDB) associated with the second PDU set, or
a PDU sequence number within the PDU set (PSN).

### Claim 24 (depends on 20)

The apparatus of claim 20, wherein the one or more processors are further configured to cause the apparatus to:
receive, from the network node, at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set; and
transmit, to the network node, an indication of an updated PDU set size associated with the second PDU set.

### Claim 25 (depends on 24)

The apparatus of claim 24, wherein the one or more processors, to cause the apparatus to transmit the indication of the updated PDU set size, are configured to cause the apparatus to transmit a UE assistance information (UAI) radio resource control (RRC) message comprising the indication of the updated PDU set size.

### Claim 26 (depends on 20)

The apparatus of claim 20, wherein the at least one packet of the first PDU set comprises at least one of a real-time transport protocol (RTP) packet or a secure RTP (SRTP) packet.

### Claim 27 (depends on 26)

The apparatus of claim 26, wherein the at least one RTP packet comprises at least one of an encrypted RTP header extension element that includes the portion of the PDU set information or an encrypted RTP payload that includes the portion of the PDU set information.

### Claim 28 (depends on 22)

The apparatus of claim 22, wherein the at least one packet of the first PDU set comprises an encrypted portion that includes the portion of the PDU set information.

### Claim 29

A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a network node during a first time period, at least one packet of a first protocol data unit (PDU) set, the at least one packet of the first PDU set comprising PDU set information associated with a second PDU set;
transmitting, to the network node, a portion of the PDU set information, wherein the portion of the PDU set information comprises a PDU set size (PSSize) associated with the second PDU set; and
receiving, in association with the portion of the PDU set information and during a second time period that occurs subsequent to the first time period, at least one packet of the second PDU set.

### Claim 30 (depends on 29)

The method of claim 29, wherein the at least one packet of the first PDU set comprises an encrypted portion that includes the portion of the PDU set information.

### Claim 31 (depends on 29)

The method of claim 29, wherein the at least one packet of the first PDU set indicates an identifier associated with the second PDU set.

### Claim 32 (depends on 31)

The method of claim 31, wherein the identifier comprises a PDU set sequence number (PSSN).

### Claim 33 (depends on 30)

The method of claim 30, wherein the PDU set information indicates the PDU set size (PSSize) associated with the second PDU set and one or more of:
a PDU set sequence number (PSSN) associated with the second PDU set,
a PDU set importance (PSI) associated with the second PDU set,
an end of a data burst (EDB) associated with the second PDU set, or
a PDU sequence number within the PDU set (PSN).

### Claim 34 (depends on 33)

The method of claim 33, further comprising:
receiving, from the network node, at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set; and
transmitting, to the network node, an indication of an updated PDU set size associated with the second PDU set.

### Claim 35 (depends on 34)

The method of claim 34, wherein transmitting the indication of the updated PDU set size further comprises:
transmitting a UE assistance information (UAI) radio resource control (RRC) message comprising the indication of the updated PDU set size.

### Claim 36 (depends on 30)

The method of claim 30, wherein the at least one packet of the first PDU set comprises at least one of a real-time transport protocol (RTP) packet or a secure RTP (SRTP) packet.

### Claim 37 (depends on 36)

The method of claim 36, wherein the at least one RTP packet comprises at least one of an encrypted RTP header extension element that includes the portion of the PDU set information or an encrypted RTP payload that includes the portion of the PDU set information.

### Claim 38

A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive, from a network node during a first time period, at least one packet of a first protocol data unit (PDU) set, the at least one packet of the first PDU set comprising PDU set information associated with a second PDU set;
transmit, to the network node, a portion of the PDU set information, wherein the portion of the PDU set information comprises a PDU set size (PSSize) associated with the second PDU set; and
receive, in association with the portion of the PDU set information and during a second time period that occurs subsequent to the first time period, at least one packet of the second PDU set.

### Claim 39 (depends on 38)

The non-transitory computer-readable medium of claim 38, wherein the at least one packet of the first PDU set comprises an encrypted portion that includes at least a portion of the PDU set information.

### Claim 40 (depends on 38)

The non-transitory computer-readable medium of claim 38, wherein the at least one packet of the first PDU set indicates an identifier associated with the second PDU set.

### Claim 41 (depends on 40)

The non-transitory computer-readable medium of claim 40, wherein the identifier comprises a PDU set sequence number (PSSN).

### Claim 42 (depends on 38)

The non-transitory computer-readable medium of claim 38, wherein the PDU set information indicates the PDU set size (PSSize) associated with the second PDU set and one or more of:
a PDU set sequence number (PSSN) associated with the second PDU set,
a PDU set importance (PSI) associated with the second PDU set,
an end of a data burst (EDB) associated with the second PDU set, or
a PDU sequence number within the PDU set (PSN).

### Claim 43 (depends on 38)

The non-transitory computer-readable medium of claim 38, wherein the one or more instructions are further executable to cause the UE to:
receive, from the network node, at least one additional packet of the first PDU set, the at least one additional packet indicating an updated PDU set size associated with the second PDU set; and
transmit, to the network node, an indication of an updated PDU set size associated with the second PDU set.

### Claim 44 (depends on 43)

The non-transitory computer-readable medium of claim 43, wherein the one or more processors, to cause the UE to transmit the indication, further cause the UE to:
transmit a UE assistance information (UAI) radio resource control (RRC) message comprising the indication of the updated PDU set size.

### Claim 45 (depends on 38)

The non-transitory computer-readable medium of claim 38, wherein the at least one packet of the first PDU set comprises at least one of a real-time transport protocol (RTP) packet or a secure RTP (SRTP) packet.

### Claim 46 (depends on 45)

The non-transitory computer-readable medium of claim 45, wherein the at least one RTP packet comprises at least one of an encrypted RTP header extension element that includes at least a portion of the PDU set information or an encrypted RTP payload that includes at least a portion of the PDU set information.

### Claim 47 (depends on 46)

The non-transitory computer-readable medium of claim 46, wherein the at least one packet of the first PDU set comprises an encrypted portion that includes at least a portion of the PDU set information.

### Claim 48

An apparatus for wireless communication, comprising:
means for receiving, from a network node during a first time period, at least one packet of a first protocol data unit (PDU) set, the at least one packet of the first PDU set comprising PDU set information associated with a second PDU set;
means for transmitting, to the network node, a portion of the PDU set information, wherein the portion of the PDU set information comprises a PDU set size (PSSize) associated with the second PDU set; and
means for receiving, in association with the portion of the PDU set information and during a second time period that occurs subsequent to the first time period, at least one packet of the second PDU set.