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Method for forming and verifying MBSFN network slice

A verification method and network slicing technology, applied in the formation of MBSFN network slicing and its performance verification, can solve the problem of reducing the number of searches and signaling overhead, large overhead and delay, and difficulty in meeting the requirements of fast tracking users of MBMS services, etc. problem, to achieve the effect of improving wireless resource efficiency, achieving compatibility, and improving bandwidth efficiency

Pending Publication Date: 2021-10-26
CHINA THREE GORGES UNIV
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Problems solved by technology

However, this mechanism is initiated by the MCE, and each search or update must be implemented through the MCE. The overhead and delay are large, and it is difficult to meet the requirements of the MBMS service to quickly track users. The CU-DU-RRU three-layer reconfigurable MBSFN In the slicing architecture, the number of searches and signaling overhead can be reduced through protocol reconstruction

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  • Method for forming and verifying MBSFN network slice
  • Method for forming and verifying MBSFN network slice
  • Method for forming and verifying MBSFN network slice

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Embodiment Construction

[0131] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0132] figure 1 It is a schematic diagram of multiple division points of BBU and RRU, and the dotted line interface CPRI is the division point of infrastructure and virtual network selected by the MBSFN slice of the present invention.

[0133] The division is based on the following:

[0134] 1. Division of virtual network and basic physical facilities: In the C-RAN architecture, baseband pool BBU centralization and radio frequency RRU remote technology are adopted...

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Abstract

The invention discloses a method for forming and verifying an MBSFN slice. The invention provides an MBSFN slice architecture in a C-RAN and CU / DU separation environment, which performs detailed definition on infrastructure and virtual network division of slices, protocol and channel division based on CU / DU separation, a main communication process and functional entities and performance of the slices. Based on a CU-DU-RRU three-layer reconfigurable architecture, a low-cost distance-based position updating mechanism is provided, MCE-controlled cell list updating is converted into MCE-assisted RRU control and searching and updating based on distance measurement, and an MARKOV model and a balance equation are established to carry out performance analysis on the mechanism. The mechanism is superior to the TAL from the aspects of search times and signaling overhead, and further the reasonability of the MBSFN slice architecture provided by the invention is explained.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the formation and performance verification of MBSFN network slices in a C-RAN environment. Background technique [0002] With the development of 5G, there are more and more streaming media services and subscription services for the Internet of Things. The point-to-point unicast communication method based on response confirmation can no longer meet the requirements, and provide services for a large number of users with the same needs at the same time with less resources. More and more attention has been paid to the efficient MBMS (Multimedia Broadcast / Mukicast Service) technology. MBMS in cellular mobile communication was originally proposed by 3GPP in R6 and R7 versions, eMBMS (enhanced MBMS) was formally proposed in R9, and the MBSFN (Multicast Broadcast Single Frequency Network) transmission mode was defined in the access network. MBSFN (Multicast Broadcast Single Frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/06H04W16/18H04W24/02H04W24/06
CPCH04W4/025H04W4/06H04W16/18H04W24/02H04W24/06
Inventor 曾菊玲
Owner CHINA THREE GORGES UNIV
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