Inter-system mobility management method

Abstract

The invention discloses an inter-system mobility management method. At a UE side, the method comprises a mobility state information reporting step of reporting self mobility state information to an eNodeB after extended service request signaling is sent to an MME, wherein the mobility state information comprises position information, mobility speed information and mobility direction information; a residing cell determining step of carrying out inter-system measurement according to frequency point configuration information fed back by the eNodeB; and selecting a target cell determined by the inter-system measurement result to reside. According to the method, the frequency points are configured precisely; and the measurement pressure is reduced.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a mobility management method between different systems. Background technique [0002] With the introduction of the LTE network and the maturity of international standards, the technical development of LTE has become the focus of the industry. The main driving force of LTE is data service, which cannot provide voice service by itself. In the early stage of LTE technology development, data services are the main concern of LTE, while services such as voice calls and short messages in the CS domain may not be considered in the scope of key considerations. However, with the development of LTE network, how to smoothly evolve voice services has become a key issue for operators to consider, and CircuitSwitchFallback (CSFB) came into being. [0003] In the existing CSFB technology, after the UE performs joint attachment of the LTE and LTA-Advanced system and the GSM system,...

AI Technical Summary

Problems solved by technology

[0004] However, the current standard does not stipulate which measurement frequency points the network sends to the UE, how the UE performs measurement, and what is the standard for cell selection

As a result, different manufacturers have different implementation methods. For example, different companies have more or less frequency point configurations, and some companies only perform simple power scans on frequency points without performing standardized measurement processes, etc.

[0005] The result of the lack of standardization of the CSFB process is that when some terminals rely on the CSFB process to make a call, the waiting time is too long or they cannot fall back to the best GSM cell, which eventually leads to unbearable or dropped calls for users, which reduces user experience

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