Wireless communication enhancements for transparent and boundary

Patent metadata

Field	Value
Publication number	US-11937196-B2
Application number	US-202318301063-A
Country	US
Kind code	B2
Filing date	Apr 14, 2023
Priority date	Feb 18, 2019
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

Methods, systems, and devices for wireless communications are described. In an example, a method includes a first node receiving a precision time protocol (PTP) message, identifying one or more timing domains to be supported by the first node based at least in part on the PTP message, and sending, to a second node of the wireless communication network, an indicator of the one or more timing domains to be supported by the first node. Another example at a node includes receiving, from additional nodes of the wireless communication network, indicators of one or more timing domains supported by the additional nodes, receiving a PTP message associated with a timing domain, and sending the PTP message to a subset of the additional nodes based at least in a part on the indicators of one or more timing domains supported by the additional nodes.

First claim

What is claimed is:

1. An apparatus, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the apparatus to:
establish, with one or more user equipments (UEs) of a wireless communication network, a packet data unit (PDU) session for communication of messages for one or more protocols including precision time protocol (PTP) messages associated with one or more timing domains;
receive an upstream PTP message that includes one or more indicators of the one or more timing domains supported by the one or more UEs, wherein the one or more indicators of the one or more timing domains supported by the one or more UEs comprise a domain number included in a header associated with the upstream PTP message;
receive, at the apparatus from a time sensitive network node, a downstream PTP message associated with a timing domain of the one or more timing domains;
adjust, by the apparatus, a field of the downstream PTP message based at least in part on a link delay between the time sensitive network node and the apparatus; and
send, from the apparatus, the downstream PTP message to the one or more UEs that includes an indication of the one or more timing domains associated with the established PDU session.

2. The apparatus of claim 1 , wherein sending the downstream PTP message to the one or more UEs is based at least in part on the one or more UEs supporting the timing domain associated with the downstream PTP message.

3. The apparatus of claim 1 , wherein the one or more indicators of the one or more timing domains supported by the one or more UEs comprise a virtual local area network tag associated with the upstream PTP message.

4. The apparatus of claim 1 , wherein the upstream PTP message, the downstream PTP message, or both is a generic PTP (gPTP) message.

5. The apparatus of claim 1 , wherein the wireless communication network acts as a peer-to-peer transparent clock.

6. The apparatus of claim 1 , wherein the apparatus comprises a user plane function (UPF).

7. The apparatus of claim 1 , wherein each of the one or more UEs is associated with a translator, and the translator operates as a time sensitive network (TSN) translator.

8. The apparatus of claim 1 , wherein the apparatus is associated with a translator, and the translator operates as a time sensitive network (TSN) translator.

9. A method at a node of a wireless communication network, comprising:
establishing, with one or more user equipments (UEs) of the wireless communication network, a packet data unit (PDU) session for communication of messages for one or more protocols including precision time protocol (PTP) messages associated with one or more timing domains;
receiving an upstream PTP message including one or more indicators of the one or more timing domains supported by the one or more UEs, wherein the one or more indicators of the one or more timing domains supported by the one or more UEs comprise a domain number included in a header associated with the upstream PTP message;
receiving, at the node from a time sensitive network node, a downstream PTP message associated with a timing domain of the one or more timing domains;
adjusting, by the node, a field of the downstream PTP message based at least in part on a link delay between the time sensitive network node and the node; and
sending, from the node, the downstream PTP message to the one or more UEs including an indication of the one or more timing domains associated with the established PDU session.

10. The method of claim 9 , wherein sending the downstream PTP message to the one or more UEs is based at least in part on the one or more UEs supporting the timing domain associated with the downstream PTP message.

11. The method of claim 9 , wherein the one or more indicators of the one or more timing domains supported by the one or more UEs comprise a virtual local area network tag associated with the upstream PTP message.

12. The method of claim 9 , wherein the upstream PTP message, the downstream PTP message, or both is a generic PTP (gPTP) message.

13. The method of claim 9 , wherein the wireless communication network acts as a peer-to-peer transparent clock.

14. The method of claim 9 , wherein the node comprises a user plane function (UPF).

15. The method of claim 9 , wherein each of the one or more UEs is associated with a translator, and the translator operates as a time sensitive network (TSN) translator.

Assignees

• Qualcomm Inc

Inventors

• Joseph Vinay
• Prakash Rajat
• Tinnakornsrisuphap Peerapol
• Ulupinar Fatih

Classifications

• H04L69/28

  Timers or timing mechanisms used in protocols · CPC title

• H04J3/0673

  using intermediate nodes, e.g. modification of a received timestamp before further transmission to the next packet node, e.g. including internal delay time or residence time into the packet · CPC title

• H04J3/0667

  Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays (arrangements for monitoring round trip delays in packet switching networks H04L43/0864) · CPC title

• H04J3/0641 Primary

  Change of the master or reference, e.g. take-over or failure of the master · CPC title

• H04W56/001 Primary

  Synchronization between nodes · CPC title