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Method and system for mobility parameter negotiation between evolved NodeBs (eNB)

A mobility and parameter technology, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as adverse consequences, inability to know handover trigger parameters, etc., to ensure the effect of correct implementation

Inactive Publication Date: 2011-11-09
深圳市恒程汇文化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the handover trigger parameters currently used by the source cell are based on measurement event A2, and the handover trigger parameters currently used by the target cell are based on measurement event A3. According to the current negotiation process, the target cell cannot know the handover trigger parameters currently used by the source cell and its own The handover trigger parameters of A3 are based on different measurement events. If the modification request is accepted, the target cell will apply the modification suggested by the source cell in the request message to the handover trigger parameters based on the measurement event A3, and the source cell receives After confirming the message, the modification will be applied to the handover trigger parameters based on the measurement event A2, resulting in the modification process of the handover trigger parameters of the two cells on two different types of objects, even if the negotiation is successful, the mobility parameter optimization will not necessarily be achieved purpose, and even adverse consequences, therefore, a more feasible method is needed so that the existing mobility parameter modification negotiation process can be implemented correctly

Method used

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  • Method and system for mobility parameter negotiation between evolved NodeBs (eNB)
  • Method and system for mobility parameter negotiation between evolved NodeBs (eNB)
  • Method and system for mobility parameter negotiation between evolved NodeBs (eNB)

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Embodiment 1

[0058] Such as image 3 As shown, this specific embodiment is a negotiation process for modifying mobility parameters such as handover trigger parameters based on a single measurement event, and the specific process is as follows:

[0059] Step 301: the source eNB sends a request message for modifying mobility parameters to the target eNB;

[0060] Wherein, the request message carries the incremental value of the target cell handover trigger parameter and the identifier of the measurement event based on it. In this embodiment, the handover trigger parameter based on the measurement event is A3, and the identifier of the handover trigger parameter based on the measurement event is set to A3.

[0061] In addition, the request may also carry information such as the current value of the source cell handover trigger parameter, the incremental value of the source cell handover trigger parameter, and the like.

[0062] In practical applications, the incremental value of the target ...

Embodiment 2

[0077] Such as Figure 4 As shown, this specific embodiment is a handover trigger parameter negotiation process based on multiple measurement events such as measurement events A2 and A3:

[0078] Step 401: the source eNB sends a request message for modifying mobility parameters to the target eNB;

[0079] Wherein, the request message carries an array of incremental values ​​of the handover trigger parameters of the target cell, and an array of identifiers of measurement events based on which the handover trigger parameters are based. In addition, the request message may also include an array of incremental values ​​of the trigger parameters of the source cell handover and an array of current values ​​of the trigger parameters of the source cell handover.

[0080] In this embodiment, the handover trigger parameter is based on the measurement event A2 and the measurement event A3, and the value of the identification array of the measurement event on which the handover trigger p...

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Abstract

The invention discloses a method for mobility parameter negotiation between evolved NodeBs (eNB). The method mainly comprises that: a source eNB transmits a request message carrying an incremental value or incremental value array of a target cell handover triggering parameter and an identifier or identifier array of a measurement event on which the handover triggering parameter is based to a target eNB; and the target eNB receives the request message, and returns a confirmation message or a failure message to the source eNB according to the request message. The invention also discloses a system for the mobility parameter negotiation between the eNBs. The method and the system can be applied to the process of mobility parameter modification negotiation of two neighbor cells between the eNBs in a long term evolution (LTE) / LTE advanced (LTE-A) system, and the accurate implementation of the negotiation process can be ensured.

Description

technical field [0001] The invention relates to the field of self-organizing networks, in particular to a method and system for realizing mobility parameter negotiation between eNBs. Background technique [0002] The long-term evolution (LTE, Long Term Evolution) network of the third-generation mobile communication is composed of an evolved universal terrestrial radio access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) and an evolved packet core (EPC, Evolved Packet Core) network . The E-UTRAN system includes a collection of evolved base stations (eNB, Evolved NodeB), and the EPC network system includes a mobile management entity (MME, Mobile Management Entity) and a serving gateway (S-GW, Serving Gateway). The eNB and MME / S-GW are connected through the S1 interface, and the eNBs can be connected through the X2 interface. Both the S1 interface and the X2 interface are logical interfaces. Each MME / S-GW can manage one or more eNBs, and each eNB can ...

Claims

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Application Information

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IPC IPC(8): H04W28/18H04W84/18
Inventor 方建民韩立锋高音和峰
Owner 深圳市恒程汇文化科技有限公司