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Switching method and system in femto district as well as user terminal and family base station

A femto cell and user terminal technology, applied in electrical components, wireless communication, etc., can solve problems such as reducing user experience, and achieve the effect of avoiding interruption

Inactive Publication Date: 2011-05-18
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the existing processing method, the home base station will first disconnect the radio resource control (RRC, Radio Resource Control) connection with all UEs, then reset its own operating frequency and bandwidth, etc., and finally re-establish the RRC connection with all UEs, But in this way, the ongoing communication of the UE that was originally in the active (ACTIVE) state will be interrupted. For example, if the user is in a voice call, the call will be dropped, thereby reducing the user experience.

Method used

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  • Switching method and system in femto district as well as user terminal and family base station
  • Switching method and system in femto district as well as user terminal and family base station
  • Switching method and system in femto district as well as user terminal and family base station

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Embodiment Construction

[0044] Aiming at the problems existing in the prior art, the present invention proposes a handover method in the femto cell, that is, when the UE determines that the system information has changed, it detects the system information from the home base station in the next system information modification period window; At the same time, in the next system message modification period window, the home base station sends a system message to notify the UE of the target carrier information to be handed over to; when the next system message modification period window ends, the home base station and the UE handover to the target carrier at the same time.

[0045] Wherein, the UE determines whether the system information has changed by receiving the paging (Paging) message sent by the home base station. For example, if the received Paging message carries the system information modification (systemInfoModification) field, it determines the There has been a change.

[0046] In order to mak...

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Abstract

The invention discloses a switching method and system in a femto district which comprises: a user terminal confirms that the system information changes, and the system information is detected in a modification cycle window of the next system information; in the modification cycle window of the next system information, a family base station sends the system information, and the target carrier waveinformation to be switched is informed to the user terminal; and when the modification cycle window of the next system information is finished, the family base station and the user terminal are simultaneously switched to the target carrier wave. The invention simultaneously discloses a user terminal and a family base station. By applying the scheme of the invention, the interruption of the communication process for the user terminal caused by switching can be avoided.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a handover method and system in a femto cell, a user terminal and a home base station. Background technique [0002] Femtocell is a small, low-power cellular base station, mainly used in indoor places such as homes and offices, and can be used as an effective supplement to cellular network coverage indoors to provide users with voice and data services. The cell where the home base station is located is called a femtocell (Femtocell), or Femto cell for short. [0003] In the prior art, generally, Femto cells with a strong interference relationship use different frequency resources to avoid mutual interference. The frequency resource may be uniformly allocated to each Femto cell by a certain network element in the network, or may be set by the Femto cell itself according to the interference environment and the like. In practical applications, the interference environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/04H04W68/00
Inventor 雷蕾
Owner CHINA MOBILE COMM GRP CO LTD
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