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Fast RACH-free switching method based on resource reservation, access network and switching system

A technology for resource reservation and network access. It is applied in network traffic/resource management, electrical components, wireless communication, etc., and can solve problems such as large signaling interaction delay and handover failure.

Pending Publication Date: 2022-01-25
中国星网网络应用有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the traditional method requires multi-step signaling to complete the handover, in the satellite Internet scenario, signaling interaction has a large delay, which can easily lead to handover failure

Method used

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  • Fast RACH-free switching method based on resource reservation, access network and switching system
  • Fast RACH-free switching method based on resource reservation, access network and switching system

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...

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Abstract

The invention belongs to the technical field of low-orbit satellite mobile communication mobility management, and particularly discloses a fast RACH-free switching method based on resource reservation, an access network and a switching system. The switching system comprises a satellite, a terminal and the access network, the access network receives measurement information of the terminal, and after the access network determines a target beam, the source beam burst type and the time-frequency resource of the terminal are inquired according to the ID of the terminal, a controller RRC layer of the access network applies for the same burst type from a wireless resource management module, the RRC layer receives a request success instruction, the RRC layer judges whether to be cross-satellite switching, and the access network judges whether to start an intra-satellite or inter-satellite RACH-free switching algorithm switch or not and controls whether to execute RACH switching or not. By adopting the technical scheme, the burst configuration resources are reserved in advance, and non-perception rapid RACH-free switching of the terminal is realized.

Description

technical field [0001] The invention belongs to the technical field of low-orbit satellite mobile communication mobility management, and relates to a fast RACH-free (Random Access Channel) switching method based on resource reservation, an access network and a switching system Background technique [0002] The overall purpose of the handover scheme design is to ensure that the communication link between the user and the satellite in communication will not be interrupted with the movement of the satellite or the user, and the user data can be smoothly connected to the satellite and transmitted between the space-based bearer network and the access network. Can be converted smoothly. [0003] The mobility management of the terrestrial operator network reports the measurement report through the terminal. After the network completes the "handover judgment", it requests the target beam resources, and informs the terminal whether handover is possible through the Handover Command (h...

Claims

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Application Information

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IPC IPC(8): H04W28/26H04W74/08H04W36/14
CPCH04W28/26H04W74/0833H04W36/14
Inventor 邹光南赵晓雪吴迪刘鸿鹏胡丹
Owner 中国星网网络应用有限公司
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