Negotiating method for packet service data stream compression algorithm

Abstract

The present invention discloses a packet service data stream compression algorithm negotiation method. By interactively carrying messages of a compression algorithm supported by a core network and messages of a compression algorithm supported by a universal mobile telecommunication system (UMTS) terrestrial radio access network between the core network and the UMTS terrestrial radio access network, a compression algorithm supported by both the core network and the UMTS terrestrial radio access network is negotiated, and packet service data is compressed by the compression algorithm supported by both the core network and the UMTS terrestrial radio access network between them. According to the present invention, packet service data is compressed by the compression algorithm supported by both the core network and the UMTS terrestrial radio access network between the core network and the UMTS terrestrial radio access network, therefore, resources are saved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for negotiating a packet service data flow compression algorithm. Background technique [0002] With the emergence of a variety of high-speed broadband mobile access methods, the evolved wireless communication system can provide higher transmission rates, shorter transmission delays, and lower costs, prompting mobile communication networks to propose HSPA (High Speed ​​Link Road packet access) evolved architecture. UTRAN (UMTS terrialradio access network, Universal Mobile Telecommunications System Terrestrial Radio Access Network) includes RNC (RadioNetwork Controller, radio network controller) and eHSAP Node B (Evolved HSPA NodeB, evolved HSPA Node B). [0003] There are two ways to transmit user data in this architecture: [0004] The first way, such as figure 1 As shown, the user data is transmitted from the CN (core network) to the eHSAP Node B through the RNC,...

AI Technical Summary

Problems solved by technology

[0006] In the above two network architectures, the IP (Internet Protocol, Internet Protocol) compression function has been introduced between UE and RNC or eHSAP Node B, but there is no compression function between CN and RNC or eHSAP Node B

Therefore, resources are wasted at the Iu (Interface between a CN and UTRAN) mouth; especially for VoIP (Voice over IP, IP telephone) business, the speech part in each data packet is very little, as in 12.2k business The voice part accounts for about 30% of the entire load, which greatly wastes resources

There is currently no method provided in the protocol to negotiate the IP header compression algorithm of the Iu interface

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