Method and Apparatus for Processing Bearer

• US 20140112146A1
• Filed: 12/27/2013
• Published: 04/24/2014
• Est. Priority Date: 07/01/2011
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Hu, Xiang, Di, Zhiyu, Hou, Shaohui
• Granted Patent: US 9,414,258 B2
• Time in Patent Office: Days
• US Class Current: 370/235
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04W 28/0252 per individual bearer or channel dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0263 involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 76/12 Setup of transport tunnels

Abstract

The present invention provides a method and an apparatus for processing a bearer. The method includes performing depth packet inspection DPI processing on a traffic flow of a service according to a preset layer-7 protocol type matching rule. Alternatively, shallow packet inspection SPI processing is performed on a traffic flow of a service according to a preset layer-3 or layer-4 protocol type matching rule so as to obtain a DPI/SPI processing result. According to the DPI/SPI result and the preset matching rule, a service quality attribute parameter of the service is determined. The method further includes determining whether the service quality attribute parameter is the same as a service quality attribute parameter of an existing bearer, and if different, creating a dedicated bearer for the service.

Claims

1. A method for processing a bearer comprising:

performing depth packet inspection (DPI) processing on a traffic flow of a service according to a preset layer-7 protocol type matching rule so as to obtain a DPI processing result, or performing shallow packet inspection (SPI) processing on a traffic flow of a service according to a preset layer-3 or layer-4 protocol type matching rule so as to obtain a SPI processing result;

determining a service quality attribute parameter of the service according to the DPI result and the preset matching rule or according to the SPI result and the preset matching rule; and

determining whether the service quality attribute parameter is the same as a service quality attribute parameter of an existing bearer, and if different, creating a dedicated bearer for the service.

2. The method according to claim 1, wherein, the service quality attribute parameter of the service specifically comprises:

a QoS class identifier identifying a quality class of the service and an allocation and retention priority (ARP); and

a step of determining whether the service quality attribute parameter is the same as a service quality attribute parameter of an existing bearer, and if different, creating a dedicated bearer for the service specifically comprises;

determining whether the QoS class identifier and the ARP are the same as a QoS class identifier and an ARP of the existing bearer, and if at least one is different, creating a dedicated bearer for the service.

3. The method according to claim 1, wherein, the creating a dedicated bearer for the service specifically comprises:

acquiring a 5-tuple of the service, and a GBR and an MBR of the service; and

according to the 5-tuple of the service and the GBR and MBR of the service, creating a dedicated bearer of the service, wherein a traffic flow template TFT parameter of the dedicated bearer is the 5-tuple of the service, and a bandwidth of the dedicated bearer is a sum of the GBR and the MBR of the service.

4. The method according to claim 1, further comprising:

when it is determined that the service quality attribute parameter is different from the service quality attribute parameter of the existing bearer, triggering an update procedure of the existing bearer.

5. The method according to claim 4, wherein, the service quality attribute parameter of the service specifically comprises:

a QoS class identifier identifying a quality class of the service and an allocation and retention priority ARP; and

a step of triggering an update procedure of the existing bearer when it is determined that the service quality attribute parameter is different from the service quality attribute parameter of the existing bearer specifically comprises;

determining whether the QoS class identifier and the ARP are the same as the QoS class identifier and the ARP of the existing bearer, and if the same, triggering an update procedure of the existing bearer.

6. The method according to claim 4, wherein, when the existing bearer is an existing dedicated bearer, the triggering an update procedure of the existing bearer comprises:

acquiring a 5-tuple of the service, and a GBR and an MBR of the service;

adding the 5-tuple of the traffic flow into a TFT parameter of the existing dedicated bearer, and adding a GBR and an MBR of the existing dedicated bearer to the GBR and MBR of the service so as to obtain an accumulated value of the GBR and MBR; and

using the accumulated value of the GBR and MBR as the GBR and MBR of the existing dedicated bearer.

7. The method according to claim 1, further comprising:

when the existing bearer does not receive a traffic flow of the service within a preset period, and/or when it is detected through an SPI/DPI technology that the service is already disconnected and a traffic flow is no longer generated, updating the existing bearer.

8. The method according to claim 7, wherein, when the existing bearer is an existing dedicated bearer, the triggering an update procedure of the existing bearer further comprises:

acquiring a 5-tuple of the service, and a GBR and an MBR of the service;

subtracting the 5-tuple of the traffic flow from a TFT parameter of the existing dedicated bearer;

subtracting the GBR and MBR of the service from the GBR and MBR of the dedicated bearer so as to obtain an updated accumulated value of the GBR and MBR; and

using the updated accumulated value of the GBR and MBR as the GBR and MBR of the dedicated bearer.

9. The method according to claim 1, further comprising:

when all services carried by the dedicated bearer stop transmitting traffic flows, initiating a deletion procedure of the dedicated bearer, so as to delete the dedicated bearer.

10. A method for processing a bearer, the method comprising:

according to a preset layer-7 protocol type matching rule, performing depth packet inspection DPI processing on a traffic flow of a service, so as to obtain a DPI processing result;

according to the DPI result and the preset matching rule, determining a service quality attribute parameter of the service; and

reporting the service quality attribute parameter of the service to a PCRF through an Rx interface, so that the PCRF creates a dedicated bearer of the service according to the service quality attribute parameter of the service;

or

according to a preset layer-3 or layer-4 protocol type matching rule, performing shallow packet inspection SPI processing on a traffic flow of a service, so as to obtain an SPI processing result;

according to the SPI result and the preset matching rule, determining a service quality attribute parameter of the service; and

reporting the service quality attribute parameter of the service to a PCRF through an Rx interface, so that the PCRF creates a dedicated bearer of the service according to the service quality attribute parameter of the service.

11. An apparatus for processing a bearer, comprising:

a processing module configured to;

perform depth packet inspection DPI processing on a traffic flow of a service according to a preset layer-7 protocol type matching rule so as to obtain a DPI processing result, or

perform shallow packet inspection SPI processing on a traffic flow of a service according to a preset layer-3 or layer-4 protocol type matching rule so as to obtain an SPI processing result;

a service quality attribute parameter determining module configured to determine a service quality attribute parameter of the service according to the DPI result and the preset matching rule, or according to the SPI result and the preset matching rule; and

a dedicated bearer creating module configured to determine whether the service quality attribute parameter is the same as a service quality attribute parameter of an existing bearer, and if different, create a dedicated bearer for the service.

12. The apparatus according to claim 11, wherein the service quality attribute parameter of the service specifically comprises a QoS class identifier identifying a quality class of the service and an allocation and retention priority ARP;

and

wherein the dedicated bearer creating module is specifically configured to determine whether the QoS class identifier and the ARP are the same as a QoS class identifier and an ARP of the existing bearer, and if at least one is different, create a dedicated bearer for the service.

13. The apparatus according to claim 11, wherein, the dedicated bearer creating module specifically comprises:

a service 5-tuple acquiring unit configured to acquire a 5-tuple of the service, and a GBR and an MBR of the service; and

a dedicated bearer creating unit configured to;

according to the 5-tuple of the service and the GBR and MBR of the service, create a dedicated bearer of the service, wherein a traffic flow template TFT parameter of the dedicated bearer is the 5-tuple of the service, and a bandwidth of the dedicated bearer is a sum of the GBR and the MBR of the service.

14. The apparatus according to claim 11, wherein the existing bearer is a default bearer or an existing dedicated bearer.

15. The apparatus according to claim 11, further comprising:

an existing bearer update module configured to trigger an update procedure of the existing bearer when it is determined that the service quality attribute parameter is different from a service quality attribute parameter of the existing bearer.

16. The apparatus according to claim 15, wherein the service quality attribute parameter of the service comprises a QoS class identifier identifying a quality class of the service and an allocation and retention priority ARP;

and

wherein the existing bearer update module is configured to determine whether the QoS class identifier and the ARP are the same as a QoS class identifier and an ARP of the existing bearer, and if the same, trigger an update procedure of the existing bearer.

17. The apparatus according to claim 14, wherein, when the existing bearer is an existing dedicated bearer, the existing bearer update module comprises:

a first service 5-tuple acquiring unit configured to acquire a 5-tuple of the service, and a GBR and an MBR of the service; and

a first existing bearer update unit configured to add the 5-tuple of the traffic flow to the TFT parameter of the existing dedicated bearer, add a GBR and an MBR of the existing dedicated bearer to the GBR and MBR of the service so as to obtain an accumulated value of the GBR and MBR, and use the accumulated value of the GBR and MBR as the GBR and MBR of the existing dedicated bearer.

18. The apparatus according to claim 15, wherein, when the existing bearer is an existing dedicated bearer, the existing bearer update module further comprises:

a second service 5-tuple acquiring unit configured to acquire a 5-tuple of the service, and a GBR and an MBR of the service; and

a second existing bearer update unit configured to subtract the 5-tuple of the traffic flow from the TFT parameter of the existing dedicated bearer, subtract the GBR and MBR of the service from a GBR and an MBR of the dedicated bearer so as to obtain an updated accumulated value of the GBR and MBR, and use the updated accumulated value of the GBR and MBR as the GBR and MBR of the dedicated bearer.

19. An apparatus for processing a bearer comprising:

a processing module configured to;

perform depth packet inspection DPI processing on a traffic flow of a service according to a preset layer-7 protocol type matching rule so as to obtain a DPI processing result, or

perform shallow packet inspection SPI processing on a traffic flow of a service according to a preset layer-3 or layer-4 protocol type matching rule so as to obtain an SPI processing result;

a service quality attribute parameter determining module configured to determine a service quality attribute parameter of the service according to the DPI result and the preset matching rule or according to the SPI result and the preset matching rule; and

a dedicated bearer creating module configured to report the service quality attribute parameter of the service to a PCRF through an Rx interface so that the PCRF creates a dedicated bearer of the service according to the service quality attribute parameter of the service.

20. The apparatus according to claim 19, wherein the service quality attribute parameter specifically comprises a QoS class identifier identifying a quality class of the service and an allocation and retention priority ARP.