Wideband code division multiple access system and method

Abstract

A WCDMA network system comprise intensified radio network for realizing air interface function and for controlling radio resource, intensified PS domain core network for handling transmission of packet and circuit domain core network for transmitting circuit domain signaling and data.

Description

technical field [0001] The invention relates to a mobile communication system, in particular to a wideband code division multiple access system and method. Background technique [0002] Refer to FIG. 1 for the network structure of Wideband Code Division Multiple Access (hereinafter referred to as WCDMA) R99 (Release 99, hereinafter referred to as R99). This network structure is mainly to facilitate the transition from the second generation Global System for Mobile Communications (hereinafter referred to as 2G GSM) and the 2.5th generation General Packet Radio Service (hereinafter referred to as GPRS) to WCDMA. The network structure of WCDMA R99 is divided into two parts: a radio network (hereinafter referred to as RAN) and a core network (hereinafter referred to as CN). The core network CN is further divided into a circuit domain core network (hereinafter referred to as CS CN) and a packet domain core network (hereinafter referred to as PS CN). Except that RAN adopts new t...

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Problems solved by technology

In addition, after the more powerful hybrid automatic retransmission (hereinafter referred to as HARQ) and other functions are implemented on the Node B, the automatic retransmission (hereinafter referred to as ARQ) function on the radio link control (hereinafter referred to as RLC) on the RNC seem insignificant

[0008] 3. Not only are there more and more entities and interfaces in the WCDMA network, but the signaling process is also very complicated. For example, a simple PS service connection needs to establish a radio resource control (hereinafter referred to as RRC) connection, packet domain mobility (hereinafter referred to as Referred to as PMM) connection, authentication, security mode control, creating a packet data protocol context (hereinafter referred to as PDP context), radio interface bearer (hereinafter referred to as RAB) establishment and other processes, which will inevitably result in session (hereinafter referred to as Session) The connection delay is too long

[0009] 4. The continuous disassembly and mapping of messages also has a certain impact on the connection delay

This will inevitably increase the delay

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