Mobile communication system and mobile communication method

Abstract

The invention relates to mobile communication field, discloses a mobile communication system and a mobile communication method, in condition of a mobile communication system comprising a relay station, the communication between terminals, a termial and a base station is normal. A Relay MAC function is added for the MAC layer, a simple relay can be realized; a Relay RRC function is increased in the RRC layer, a complex relay can be realized cooperating with Relay MAC. A physical layer supports various modes, such as FDD and TDD, a function of supporting various modes is added for the MAC layer, thereby the MAC layer can support access of terminals with various modes. The MAC layer supports point-to-point communication. A safe sublayer is added between the RRC layer and the MAC to improve communication safety. A cooperative radio resource management layer is also added on the RRC layer for coordinating and managing radio resources of different systems.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a mobile communication system and a related communication method. Background technique [0002] With the development of human society, the requirements for mobile communication technology continue to increase and diversify, so the first to third generation mobile communication have appeared one after another. [0003] This leads to the existence of different wireless access technologies in the current mobile communication field, and thus the existence of wireless networks based on different technologies. Wireless networks based on different technologies include the Global System for Mobile Communication (GSM for short), Code Division Multiple Access (CDMA for short) in the second generation of mobile communications, and the third generation of mobile communications. Wideband Code Division Multiple Access (WCDMA for short), Time Division Synchronous Code Division Multiple Acce...

AI Technical Summary

Problems solved by technology

[0011] However, with the introduction of relay stations and the improvement of people's requirements for existing networks, the existing air interface protocol architecture can no longer support the developing mobile communication network well, and many technical functions that cannot be supported appear, such as:

[0012] 1. Cannot support the function of the relay station;

[0013] 2. It cannot support the function of direct communication of data between users without passing through the base station;

[0014] 3. Cannot support seamless switching between different systems, load sharing and spectrum sharing functions;

[0015] 4. For the physical layer of different modes in the same system, such as the physical layer of the Frequency Division Duplex (FDD for short) mode and the Time DiVisionDuplex (TDD for short) mode in the same system, The coordination function of the two modes is not supported;

[0016] 5. Unable to encrypt user plane data and control plane data separately

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