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Method and system for establishing header compression communication, header compression policy functional entity

A strategy function entity, header compression technology, applied in the transmission system, data exchange through path configuration, electrical components, etc., can solve problems such as the inability to achieve header compression communication, save wireless network resources, and improve service quality.

Inactive Publication Date: 2009-02-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a method and system for establishing header compression communication to solve the problem that header compression communication cannot be realized in the prior art

Method used

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  • Method and system for establishing header compression communication, header compression policy functional entity
  • Method and system for establishing header compression communication, header compression policy functional entity
  • Method and system for establishing header compression communication, header compression policy functional entity

Examples

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specific Embodiment 1

[0074] see image 3 , when the network side initiates the establishment of a downlink service flow (DownLink ROHC), the specific implementation process of this embodiment is as follows:

[0075] Step 301: The anchor SFA in ASN (b) sends an RR-REQ message to the anchor DPF / serving SFA in ASN (a), and the message includes indication information whether to perform ROHC header compression for each service flow.

[0076] Step 302: The serving SFA of the GW where the anchor DPF is located makes a decision based on whether it has ROHC compression capability, and sends RR-REQ or path request (PR-REQ, Path-Reg-REQ) to the BS when ROHC header compression is required message, the message carries ROHC channel parameters, which may include one or a combination of the following parameters: MAX_CID, LARGE_CIDS, PROFILES, FEEDBACK_FOR, MRRU.

[0077] Step 303: The BS sends a DSA-REQ or DSC-REQ message to the MS, and the message carries ROHC channel parameters corresponding to the service flo...

specific Embodiment 2

[0085] see Figure 4 , when the MS initiates the establishment of an uplink service flow (UpLink ROHC), the specific steps of this embodiment are as follows:

[0086] Step 401: The MS decides to perform ROHC operation on a service flow, and sends a DSA / DSC-REQ message to the BS, which may carry relevant ROHC channel parameters.

[0087] Step 402: The BS sends an RR-REQ or Path-Reg-REQ message to the serving SFA, and the message may carry ROHC channel parameters corresponding to the service flow SF.

[0088] Step 403: The serving SFA sends an RR-REQ message to the anchor SFA, requesting to establish or modify a service flow. In this message, ROHC indication and / or ROHC channel parameters may also be carried.

[0089] Step 404: The anchor SFA makes a decision whether to perform ROHC operation according to the QoS requirement and resource usage of the service flow.

[0090] Step 405: Optionally, the anchor SFA sends a service flow request message to the policy function entity ...

specific Embodiment 3

[0098] see Figure 5 , when the policy function entity in the CSN triggers the service flow establishment, the specific implementation process of this embodiment is as follows:

[0099] Step 501: The policy function entity in the CSN can make a decision on whether to perform the ROHC operation, and send an RR-REQ message to the anchor SFA, and the message can include an indication of whether to perform the ROHC header compression operation (Indication). The message can be relayed through the proxy PCEF. The policy function entity in CSN includes AAA server, PF / PCRF, or combination of agent PCEF / PCRF.

[0100]In the embodiment of the present invention, further, before the policy function entity in the CSN makes a decision on whether to perform the ROHC operation, the policy decision process of header compression may further include that the ASN converts the header of the ASN during the MS access authentication process. The compression policy and idle resources are sent to the...

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PUM

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Abstract

The invention discloses a method for establishing head minimized communication, as well as a system and a head minimized strategy function entity. The method comprises the following steps: the head minimized strategy function entity receives a head minimized indication from another head minimized strategy function entity; the head minimized strategy function entity and the corresponding head minimized strategy function entity at the other head carry out the parameter negotiation of a minimized channel, so as to establish the head minimized channel. The invention further discloses a communication system and a head minimized strategy function entity. The embodiment of the invention solves the problem in the prior art that the head minimized communication can not be realized.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for establishing header compression communication, and a header compression strategy functional entity. Background technique [0002] Due to the limitation of physical conditions, compared with the wired link, the transmission rate of the wireless link is lower, but the bit error rate is higher. When the Internet Protocol (IP) technology is applied in the wireless network cell environment, there is a problem that the overhead of the packet header is too large. For example, in an IPv6 voice communication packet, the payload of the packet that the user really needs only accounts for 22% of the entire packet. This not only wastes bandwidth, but also increases the probability that the packet is discarded due to packet error. If no effective measures are taken, valuable wireless network resources will be wasted and quality of service (QoS) will be reduced....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/28
CPCH04L69/22
Inventor 梁文亮顾亮
Owner HUAWEI TECH CO LTD