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Method and device for notifying MBSFN (Multicast Broadcast Single Frequency Network) subframe position and application

A subframe location and subframe technology, applied in the communication field, can solve the problems of MBMS service transmission impact, packet loss, network scheduling restrictions, etc., and achieve the effect of simple scheduling, saving system resources, and reducing restrictions

Active Publication Date: 2013-03-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This brings restrictions on the scheduling of the network, only those UEs that can read the dynamic scheduling information can be scheduled
In fact, the network does not know which UEs are receiving MBMS services and which UEs are not receiving MBMS services. If the network schedules UEs that do not receive MBMS services, packet loss will occur
[0031] Therefore, the transmission of MBMS services will be greatly affected

Method used

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  • Method and device for notifying MBSFN (Multicast Broadcast Single Frequency Network) subframe position and application
  • Method and device for notifying MBSFN (Multicast Broadcast Single Frequency Network) subframe position and application
  • Method and device for notifying MBSFN (Multicast Broadcast Single Frequency Network) subframe position and application

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Embodiment Construction

[0058] 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.

[0059] The method for notifying the position of the MBSFN subframe provided by the embodiment of the present invention utilizes the reserved subframe array information in the system broadcast message, for example:

[0060] System broadcast message: Period=16, offset=0, bitmap=110100

[0061] Period=32, offset=2, bitmap=101111

[0062] That is, the first item is: period=16, offset=0, bitmap=110100;

[0063] The second item is: period=32, offset=2, bitmap=101111. ...

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Abstract

The embodiment of the invention provides a method and device for notifying MBSFN (Multicast Broadcast Single Frequency Network) subframe positions and applications, relating to the communication field, wherein an MBSFN subframe position occupied by each MCH (Multicast Channel) can be simply and flexibly notified, and the size of a transmission field is constant; all UE (User equipment) can also be flexibly notified that the applications of the MBSFN subframes are changed. The embodiment of the invention provides one method comprising the step of: transmitting a bitmap and the position of the MBSFN subframe occupied by each MCH in the bitmap, wherein the length of the bitmap is the number of the subframes which are indicated by reserved subframe arrays in system broadcast information and can be used for MBSFN transmission in the maximum period of the MBSFN subframes of the current MBSFN area transmission. The embodiment of the invention provides another method comprising the step of: transmitting a physical format indication channel (PCFICH), wherein the applications of the MBSFN subframes are indicated in the PCFICH.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for notifying the position and use of an MBSFN subframe. Background technique [0002] The MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast multicast service) service is one of the important contents of the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) service development. MBMS mainly means that the network sends the same multimedia data to multiple receivers in the network at the same time. Compared with single-user transmission, MBMS greatly saves air interface resources. [0003] MBSFN (Multimedia Broadcast multicast service Single Frequency Network, Multimedia Broadcast Multicast Service Single Frequency Network) is an important transmission mode of MBMS. MBSFN refers to multiple base stations in the network that send the same content at the same time. For UE ( User Equipment), it is impossible to disting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04W4/06H04W48/08H04W72/14
Inventor 黄曲芳曾清海
Owner HUAWEI TECH CO LTD
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