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Method and device for multimedia broadcast multicast communication

A multimedia broadcasting and multicasting communication technology, applied in the field of multimedia broadcasting and multicasting communication, can solve problems such as multi-processing power, multi-battery energy, consumption, etc., to improve communication efficiency, improve accuracy and reliability, and save processing power consumption Effect

Active Publication Date: 2019-08-23
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For UEs, especially power-constrained MTC UEs, this requires more processing power and consumes more battery power, which is sometimes not desired

Method used

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  • Method and device for multimedia broadcast multicast communication
  • Method and device for multimedia broadcast multicast communication
  • Method and device for multimedia broadcast multicast communication

Examples

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Embodiment Construction

[0031] MBMS transmissions can convey many different types of information to a group of UEs (eg power limited MTC devices). Specifically, the MBMS architecture supports multiple MBMS channels, where a Multicast Control Channel ("MCCH") is used to deliver MBMS control information from a BS such as an evolved Node B ("eNB") to a UE; a Multicast Traffic Channel ("MTCH") ”) for transport channels carrying MBMS user plane traffic, MCCH Notification Channel for notifying UEs of upcoming changes on MCCH, MCH Scheduling Information ("MSI") Medium Access Control ("MAC") control element for The radio resource scheduling of the MTCH is notified to the UE.

[0032] Further, the above-mentioned MCCH, MTCH and MSI may be mapped onto a physical multicast channel ("PMCH") for transmission over the radio interface. In addition to using transport and physical channels through radio interface transmission, MBMS application server information can be provided to UEs through a user service descript...

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Abstract

The present invention discloses a method and device for multimedia broadcasting multicast communication. The method provided by the invention comprises: forming indication information of each priority of a plurality of multimedia broadcasting multicast service which is going to be transmitted to a user device, and transmitting the indication information to the user device. According to the invention, a user device is able to save the processing power and reduce unnecessary power consumption in the multimedia broadcasting multicast communication.

Description

technical field [0001] Embodiments of the invention relate generally to the field of wireless communications. More particularly, embodiments of the present invention relate to methods and apparatus for Multimedia Broadcast Multicast ("MBMS") communications. Background technique [0002] A machine type communication ("MTC") device, such as a smart meter, is user equipment ("UE") that uses a machine for a specific application. Such MTC devices are low-cost devices and have specific requirements on power consumption due to limited power, compared to devices that draw power from the mains and therefore do not specifically require power consumption optimization. In the 3rd Generation Partnership Project ("3GPP") Long Term Evolution ("LTE") System Release 12, a work item was adopted for low-cost MTC UEs and their coverage enhancements. One aspect of this project focuses on low-cost power-constrained UEs. [0003] It has been specified that MBMS services are delivered to a group...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06
CPCY02D30/70
Inventor 钱德瑞·卡沃拉尔黄晟锋陈宇
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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