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Directional switching method and apparatus

A technology of movement direction and cell, applied in the field of communication, can solve problems such as terminal call drop and soft handover process can not be carried out, so as to avoid call drop and shorten handover time

Active Publication Date: 2019-04-16
CHINA UNITED NETWORK COMM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the time for the terminal to pass through the handover area is less than the minimum time for the soft handover of the terminal, the soft handover process will fail and the terminal will drop calls

Method used

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  • Directional switching method and apparatus

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Embodiment Construction

[0017] A directional handover method and device provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0018] The terms "first" and "second" in the specification and drawings of the present application are used to distinguish different objects, or to distinguish different processes for the same object, rather than to describe a specific sequence of objects.

[0019] In addition, the terms "including" and "having" mentioned in the description of the present application, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also includes Other steps or elements inherent to the process, method, product or apparatus are included.

[0020] It should be noted that...

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PUM

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Abstract

The invention provides a directional switching method and apparatus, and relates to the field of communication. Directional switching is performed on a terminal. The method comprises the following steps: when the motion speed of the terminal is greater than a preset threshold, the terminal obtains a motion direction of the terminal; the terminal determines multiple neighboring cells of a primary serving cell on the motion direction; the terminal determines an active set and a monitoring set from the multiple neighboring cells, and establishes a connection with the cells in the active set; theterminal reports a switching event to a first network device; the terminal performs an update indication determined by the first network device according to the switching event; and the terminal establishes a connection with the updated primary serving cell and / or the cells in the updated active set. Therefore, by adoption of the directional switching method provided by the invention, the switching time of the terminal between different cells is shortened, and switching failure and call drop events of the terminal in a high-speed motion scene are avoided.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for directional handover. Background technique [0002] The current directional handover in the high-speed rail scenario generally adopts soft handover technology, that is, when the terminal switches between different cells with different channel center frequencies but the same channel carrier frequency, the terminal maintains the same network as the current target cell when establishing a connection with the target cell to which it is to be handed over. Cell connection; when the terminal establishes a stable connection with the target cell, it disconnects from the current cell. [0003] However, in the high-speed rail scenario, since the high-speed rail line is generally fixed, the size of the handover area is fixed. For example, certain cells are fixed along the high-speed rail line, and the handover area generally refers to the inters...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W4/42H04W36/00H04W36/30H04W36/32
CPCH04W4/026H04W4/027H04W36/0011H04W36/0083H04W36/30H04W36/32H04W4/42
Inventor 范恒耿玉波李翼侯玉兵沙晶王正洪杨晟李智施元元
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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