Method and apparatus for controlling service flow transmission, and system

Patent metadata

Field	Value
Publication number	US-12200533-B2
Application number	US-202217706274-A
Country	US
Kind code	B2
Filing date	Mar 28, 2022
Priority date	Sep 29, 2019
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

Embodiments of this application relate to a method for controlling service flow transmission. One example method includes: a session management network element obtains a first TMBR of a service flow transmitted in a session by using a first access technology and a guaranteed bandwidth of a first GBR service flow, where the TMBR indicates a TMBR of service flows transmitted in the session by using the first access technology. The session management network element sends first information to a data plane network element, where the first information is used by the data plane network element to determine one or more of the following information of the session: a first AMBR, a second AMBR corresponding to the first access technology, and a second TMBR. A second AMBR indicates an AMBR of a non-GBR service flow transmitted in the session by using the first access technology.

First claim

What is claimed is:

1. A method for controlling service flow transmission, comprising:
obtaining, by a session management network element, a first total maximum bit rate (TMBR) of a service flow transmitted in a session by using a access technology and a guaranteed bandwidth of a first guaranteed bit rate (GBR) service flow, wherein the first TMBR indicates a maximum bandwidth value of service flows transmitted in the session by using the access technology;
sending, by the session management network element, first information to a data plane network element, wherein the first information is used to determine one or more of the following information: a first aggregate maximum bit rate (AMBR) of the session, a second AMBR corresponding to the access technology in the session, the first TMBR, or a second TMBR, wherein the second AMBR indicates a maximum aggregate bandwidth of a non-GBR service flow transmitted in the session by using the access technology, wherein the first AMBR indicates a maximum aggregate bandwidth of non-GBR service flows in the session, the second TMBR is a difference between the first TMBR and a total guaranteed bandwidth of one or more GBR service flows split on an uplink classifier corresponding to the access technology; and
sending, by the session management network element, indication information to the data plane network element, wherein the indication information indicates that when the GBR service flow transmitted in the session by using the access technology is in an inactive mode, the second AMBR is either the first AMBR or is a sum of a target second AMBR allocated to the non-GBR service flow and a guaranteed bandwidth value of the GBR service flow in the inactive mode.

2. The method according to claim 1 , wherein the first information comprises one or more of the following information: the first AMBR, the second AMBR, or the second TMBR.

3. The method according to claim 1 , wherein the method further comprises:
determining, by the session management network element, at least one of the second AMBR or the second TMBR based on the first TMBR and the guaranteed bandwidth of the first GBR service flow.

4. The method according to claim 3 , wherein the determining, by the session management network element, at least one of the second AMBR or the second TMBR based on the first TMBR and the guaranteed bandwidth of the first GBR service flow comprises:
determining, by the session management network element based on the guaranteed bandwidth of the first GBR service flow, a total guaranteed bandwidth of one or more GBR service flows transmitted in the session by using the access technology; and
determining, by the session management network element, the second AMBR based on the first TMBR and the total guaranteed bandwidth of the one or more GBR service flows.

5. The method according to claim 4 , wherein the method further comprises:
obtaining, by the session management network element, the first AMBR corresponding to the session, wherein the first AMBR indicates a maximum aggregate bandwidth of non-GBR service flows in the session; and
the determining, by the session management network element, the second AMBR based on the first TMBR and the total guaranteed bandwidth of the one or more GBR service flows comprises:
determining, by the session management network element, that the second AMBR is a difference between the first TMBR and the total guaranteed bandwidth of the one or more GBR service flows; and
performing one of the following:
when a difference between the first TMBR and the total guaranteed bandwidth of the one or more GBR service flows is greater than the first AMBR, determining, by the session management network element, that the second AMBR is the first AMBR; or
when a difference between the first TMBR and the total guaranteed bandwidth of the one or more GBR service flows is less than the first AMBR, determining, by the session management network element, that the second AMBR is the difference between the first TMBR and the total guaranteed bandwidth of the one or more GBR service flows.

6. The method according to claim 3 , wherein the determining, by the session management network element, at least one of the second AMBR or the second TMBR based on the first TMBR and the guaranteed bandwidth of the first GBR service flow comprises:
determining, by the session management network element, the second TMBR based on the first TMBR and a total guaranteed bandwidth of the one or more GBR service flows split on an uplink classifier corresponding to the access technology.

7. The method according to claim 1 , wherein the method further comprises:
sending, by the session management network element to an access network gateway corresponding to the access technology, an identifier of the session and one or more of the following information: the second AMBR or the first TMBR.

8. The method according to claim 1 , wherein the method further comprises:
sending, by the session management network element, the second AMBR or the first TMBR of the session to an uplink classifier corresponding to the access technology.

9. The method according to claim 1 , wherein the first information comprises one or more of the following information: the first TMBR, the second TMBR, or a guaranteed bandwidth of each GBR service flow in one or more GBR service flows transmitted in the session by using the first access technology.

10. The method according to claim 1 , wherein
when the sum of the target second AMBR and the guaranteed bandwidth value of the GBR service flow in the inactive mode is less than the first AMBR, the second AMBR is the sum of the target second AMBR and the guaranteed bandwidth value of the GBR service flow in the inactive mode; or
when the sum of the target second AMBR and the guaranteed bandwidth value of the GBR service flow in the inactive mode is greater than or equal to the first AMBR, the second AMBR is the first AMBR.

11. The method according to claim 1 , wherein the method further comprises:
controlling, by the data plane network element based on at least one of the second AMBR, the first TMBR, or the second TMBR, the service flow transmitted in the session by using the access technology.

12. A communication apparatus, comprising:
at least one processor; and
one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the apparatus to:
obtain a first total maximum bit rate (TMBR) of a service flow transmitted in a session by using a access technology and a guaranteed bandwidth of a first guaranteed bit rate (GBR) service flow, wherein the TMBR indicates a maximum bandwidth value of service flows transmitted in the session by using the access technology;
send first information to a data plane network element, wherein the first information is used to determine one or more of the following information: a first aggregate maximum bit rate (AMBR) of the session, a second AMBR corresponding to the access technology in the session, the first TMBR, or a second TMBR, wherein the second AMBR indicates a maximum aggregate bandwidth of a non-GBR service flow transmitted in the session by using the access technology, wherein the first AMBR indicates a maximum aggregate bandwidth of non-GBR service flows in the session, the second TMBR is a difference between the first TMBR and a total guaranteed bandwidth of one or more GBR service flows split on an uplink classifier corresponding to the access technology; and
send indication information to the data plane network element, wherein the indication information indicates that when the GBR service flow trans

Assignees

• Huawei Tech Co Ltd

Inventors

• Yu Youyang

Classifications

• H04W28/24

  Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service] · CPC title

• H04W28/10

  Flow control {between communication endpoints} · CPC title

• H04W28/0268 Primary

  using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24) · CPC title

• H04W28/0257 Primary

  the individual bearer or channel having a maximum bit rate or a bit rate guarantee · CPC title

• H04L47/2425

  for supporting services specification, e.g. SLA · CPC title