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Radio resource management method used in enhanced multimedia multicast/ broadcast service

A multimedia multicast and broadcast service technology, applied in the field of enhanced multimedia multicast/broadcast services, can solve the problems of not considering the impact of multi-service scheduling, not applicable to mixed service scenarios, and unable to bring business statistical multiplexing gains, etc. Achieve the effect of improving user satisfaction

Inactive Publication Date: 2011-01-19
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

[0004] An enhanced multimedia multicast / broadcast service based on service statistical multiplexing was proposed in the 65th meeting of the Third Generation Partnership Project Radio Access Network Working Group 3 (3GPP TSG-RANWG3#65, Aug, 2009) (e-MBMS) resource management method, but it does not consider the impact of service usage requirements differences in single frequency network multicast / broadcast area (MBSFN Area) on multi-service scheduling, and this method does not change the resource reservation method, and cannot bring Statistical Multiplexing Gain
[0005] "International Conference on Communication Technology and Application" (International Conference on Communication Technology and Application, pp.360-365, Oct, 2009) proposed a method to introduce service statistical multiplexing gain into enhanced multimedia multicast / broadcast service (e-MBMS) The resource management method in , but this method is not suitable for mixed business scenarios, and does not consider the scheduling strategy when multiple businesses are concurrent

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  • Radio resource management method used in enhanced multimedia multicast/ broadcast service
  • Radio resource management method used in enhanced multimedia multicast/ broadcast service
  • Radio resource management method used in enhanced multimedia multicast/ broadcast service

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Embodiment 1

[0035] There are 19 hexagonal cells in the cellular system adopted in this embodiment, and each cell is provided with a base station, and each cell is divided into three sectors, and user terminals are randomly distributed in the cell, regardless of the movement of user terminals; The frequency is 2GHz, the channel bandwidth is 50PRB (10MHz); the base station uses a 120° directional antenna, and the antenna gain is θ is the azimuth angle of the directional antenna; θ 3dB Set to 70 degrees, A m Set to 20dB, the maximum gain of each antenna is 14dBi, with the deviation from the boresight direction, the antenna gain gradually decreases, and the maximum attenuation is 20dB.

[0036] In this embodiment, a Rayleigh channel model is adopted and a single antenna is configured; the transmission power of the base station is set to 10 dBm; the thermal noise density is -104 dBm / Hz.

[0037] This embodiment adopts the frame structure specified in the advanced long-term evolution protoco...

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Abstract

The invention discloses a radio resource management method used in enhanced multimedia multicast / broadcast service, which is characterized in that under an enhanced multimedia multicast / broadcast mixed service scene, a user feeds back a user requirement factor to a base station; the base station sequences based on service numbers according to the accumulated result of service conditions of eachservice in the user requirement factor fed back by the user to form the control surface signaling of a service requirement factor, a multicell / multicast coordination entity uses the service requirement weight determined by the service requirement factor to schedule mixed services; and a multicell / multicast coordination entity sets a reasonable service statistical multiplexing threshold to introduce a resource allocation mode based on service statistical multiplexing. On the basis of not affecting the packet loss rate of nonguaranteed bit rate bearer service, the method can improve multicastto ensure the satisfaction of bit rate bearer service users, and can improve the throughput of guaranteed bit rate bearer service under a mixed service application scene, thereby using radio resources more reasonably.

Description

technical field [0001] The present invention belongs to the enhanced multimedia multicast / broadcast service (enhancement-Multimedia Multicast / Broadcast Service, hereinafter referred to as e-MBMS) technology in the fourth-generation mobile communication system Advanced Long Term Evolution-Advanced (hereinafter referred to as LTE-Advanced) Field, in particular to a radio resource management method for enhanced multimedia multicast / broadcast services. Background technique [0002] Enhanced multimedia multicast / broadcast service (e-MBMS) is considered to be an important way to provide high spectrum efficiency and high reliability multimedia service transmission in LTE-Advanced, and it is also the fourth generation mobile communication system important aspect of standardization work. [0003] "Third Generation Partnership Project (Radio Access Network Technical Specification Group): Overview of Evolved Universal Terrestrial Radio Access and Radio Access Network (Ninth Edition)" ...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W72/04H04W72/12
Inventor 娄崇邱玲
Owner UNIV OF SCI & TECH OF CHINA
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