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Inter-cell switching method and device

An inter-cell and buffer technology, applied in the field of communication, can solve problems such as long business hours, and achieve the effects of simple implementation, reduced retransmission, and reduced data interruption delay

Inactive Publication Date: 2011-05-11
曹晶晶 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention is made in consideration of the above problems, for this reason, the main purpose of the present invention is to provide an inter-cell handover mechanism to solve the problem of too long service time in the inter-cell handover process in the related art

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Embodiment Construction

[0023] method embodiment

[0024] In this embodiment, an inter-cell handover method is provided, which is applied to a wideband code division multiple access system including user equipment, a radio network controller, a serving Node B and a target Node B belonging to the radio network controller.

[0025] As shown in Figure 1, the inter-cell handover method according to this embodiment includes: step S102, when the radio network controller decides to handover the UE from the serving Node B to the target Node B, the radio network controller notifies the activation time to Serving Node B and target Node B; step S104, the serving Node B determines the specified time period; step S106, when the time of the specified time period arrives in advance relative to the activation time, the serving Node B notifies the radio network controller to no longer send data to it , and schedule the data in its buffer to the UE; step S108, when the activation time arrives, the serving Node B clear...

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Abstract

An inter-cell switching method comprises the following steps: when a wireless network controller determines to switch user equipment from a service Node B to an object Node B, the wireless network controller notifies an activation time to the service Node B and the object Node B; the service Node B determines a specified time segment; when arrived at a time advanced by the specified time segment relative to the activation time, the service Node B notifies the wireless network controller to stop transmitting data to the service Node B, and schedules the data in the buffer area of the service Node B to the user equipment; when arrived at the activation time, the service Node B empties the data in the buffer area and correlative to the user equipment, and the object Node B provides the user equipment with data. In addition, the invention also discloses an inter-cell switching device. The inter-cell switching method can reduce data retransmission to a large extent, ensure normal receiving of data of UE during switching and reduce data interruption time delay, thereby meeting the requirements of realtime service for QoS.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to an inter-cell handover method and device, which are used in a Wideband Code Division Multiple Access (WCDMA) system. Background technique [0002] WCDMA communication system is an important branch of Code Division Multiple Access (CDMA) technology. The standard is formulated by the Third Generation Partnership Project (3GPP). Currently, multiple protocol versions such as R99, R4, R5, and R6 have been released. The R99 protocol supports a transmission rate of 384kbit / s in the case of high-speed mobility, or in an indoor environment, the highest transmission rate can reach 2Mbit / s. Specifically, the R4 version has no major changes in the field of wireless technology; the R5 version introduces the High-Speed ​​Downlink Packet Access (HSDPA) technology, which can use 16QAM modulation, which greatly improves the spectrum utilization efficiency and enables the peak downli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00
Inventor 宋廷山徐志宇谢澜涛贺贻军
Owner 曹晶晶
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