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A Multicast-Unicast Joint Resource Scheduling Algorithm for Improving Terminal Energy Efficiency

A technology for resource scheduling and energy efficiency, used in energy reduction, advanced technology, power management, etc.

Active Publication Date: 2017-12-26
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a resource scheduling algorithm in the multicast broadcast single frequency network scenario to solve the technical problem of how to improve the energy efficiency of the terminal in the downlink transmission of the multicast single frequency network

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  • A Multicast-Unicast Joint Resource Scheduling Algorithm for Improving Terminal Energy Efficiency
  • A Multicast-Unicast Joint Resource Scheduling Algorithm for Improving Terminal Energy Efficiency
  • A Multicast-Unicast Joint Resource Scheduling Algorithm for Improving Terminal Energy Efficiency

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0022] The following concepts are involved in the present invention:

[0023] MBSFN area: An area where multicast services are sent on the same frequency at the same time using single frequency network technology. Send one multicast service in one MBSFN area.

[0024] DRX: Discontinuous reception mechanism, which reduces terminal energy consumption by allowing users to enter a sleep state when there is no data reception.

[0025] Energy saving weighted time slot T s : at time T s In this case, the terminal does not enter the dormant state and continuously receives data. C...

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Abstract

The invention discloses a multicast / unicast combined resource scheduling algorithm for increasing the energy consumption efficiency of a terminal in an LTE (Long Term Evolution) system multicast broadcast single-frequency network (MBSFN). According to the algorithm, a multicast and unicast service hybrid carrier transmission scene in the MBSFN is considered, and the energy consumption caused by dormancy-awakening switching is reduced for the user through a reasonable user scheduling mechanism based on a discontinuous reception (DRX) dormancy mechanism of the LTE system terminal. By means of the resource distribution algorithm, the energy efficiency of the terminal can be efficiently increased on the premise of guaranteeing the system performance.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a multicast-broadcast single-frequency network of an LTE system, and a scene of mixed carrier transmission of multicast services and unicast services. Background technique [0002] The 3GPP defines an evolved multicast broadcast technology standard (Evolved Multimedia Broadcast Multicast Serves, E-MBMS) in the LTE system. The E-MBMS standard proposes to transmit multicast broadcast services in multiple cells in a multicast broadcast single frequency network (Multicast and Broadcast Single Frequency Network, MBSFN) manner. The MBSFN transmission mode defines the relevant area divisions: [0003] MBSFN Synchronization Area (MBSFN Synchronization Area): Refers to the geographical area where MBSFN can be used to transmit MBMS services in the network. The eNBs of all cells in the MBSFN synchronization area are capable of performing MBSFN synchronization transmission. One MB...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W52/02
CPCY02D30/70
Inventor 张天魁孙学康吴朝安冯春燕
Owner BEIJING UNIV OF POSTS & TELECOMM
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