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Method and system for bearing multi-media broadcast multicast service

A technology for multimedia broadcast and multicast services, applied in the field of carrying multimedia broadcast and multicast services, can solve problems such as interference, and achieve the effect of improving anti-interference ability and effectively utilizing resources

Inactive Publication Date: 2011-02-09
江苏金羿智芯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] According to the above analysis, the use of the second OFDM symbol in the MBSFN subframe carrying the MBMS service in the multi-cell mode has interference problems

Method used

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  • Method and system for bearing multi-media broadcast multicast service
  • Method and system for bearing multi-media broadcast multicast service
  • Method and system for bearing multi-media broadcast multicast service

Examples

Experimental program
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Effect test

Embodiment 1

[0044] This example figure 1 In the described content, in the MBSFN subframe, when N=1, when the PDCCH occupies the first OFDM symbol, the second OFDM symbol is not used to send the MBMS service in multi-cell mode, and the MBMS service starts from the third and subsequent OFDM symbols. The OFDM symbol carries the transmission. The second OFDM symbol can send other data, or be idle.

[0045] In the MBSFN subframe carrying the MBMS service of the multi-cell mode, if the second OFDM symbol of the subframe is used to carry the MBMS service of the multi-cell mode, it will bring some troubles, and the main troubles have been carried out in the technical background of the present invention For a detailed analysis, here is a brief description.

[0046] The main reason is that the MBMS service in the multi-cell mode requires the cells participating in the MBMS service in the multi-cell mode in the MBSFN area to send data on the same resource, but for the second OFDM symbol, because e...

Embodiment 2

[0051] The example is figure 2 As shown, when N=2, similar to Embodiment 1, when the PDCCH in the MBSFN subframe carrying the MBMS service occupies the first and second OFDM symbols, the MBMS service is carried and sent from the third and subsequent OFDM symbols .

[0052] This is only due to the first two OFDM symbols occupied by the PDCCH, and the rest are the same as in Embodiment 1.

Embodiment 3

[0054] The example is figure 1 The figure shows how the MBMS service in the single-cell mode uses OFDM symbol resources in the MBSFN subframe.

[0055] MBMS service in single cell mode and unicast service have similar service characteristics, only because MBMS service in single cell mode is point-to-multipoint or broadcast mode, unicast service is point-to-point, other aspects can be Think both are the same. In terms of resource usage, point-to-multipoint and point-to-point are the same, so it can be understood that the MBMS service and unicast service in single cell mode are the same in resource usage.

[0056] Therefore, the present invention proposes that if the MBMS service in the single cell mode is carried and sent using the MBSFN subframe, then the MBMS service can be carried and sent using the OFDM symbol immediately after the PDCCH and all subsequent OFDM symbols. That is, when the PDCCH does not use the second OFDM symbol, the MBMS service in the single-cell mode c...

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Abstract

The invention discloses a method and a system for bearing a multi-media broadcast multicast service. On the N+1 th orthogonal frequency division multiplexing (OFDM) symbol and all subsequent orthogonal frequency division multiplexing (OFDM) symbols in a multicast broadcast single frequency network (MBSFN) subframe of the media broadcast, a sending end bears a multi-cell mode multimedia broadcast multicast service or a single-cell mode multimedia broadcast multicast service (MBMS). By adopting the method and the system, the multi-cell mode MBMS service born in the MBSFN subframe is easily sent, sources for sending the multi-cell mode MBMS born in the MBSFN subframe is uniformly set, the uniform scheduling and sending of the MBMS is facilitated, the antijamming capability of PDCCH of neighboring cells for sending the MBMS is improved and the POCCH of the cells can normally receives the MBMS.

Description

technical field [0001] The present invention relates to the field of carrying multimedia broadcast multicast service (Multimedia Broadcast Multicast Service, MBMS), in particular to the field of orthogonal frequency division multiplexing in the subframe of multimedia broadcast multicast service Single Frequency Network (MBSFN) A method and system for (Orthogonal Frequency Division Multiplexing, OFDM) symbols carrying MBMS services. Background technique [0002] With the rapid development of the Internet and the popularization of large-screen multifunctional mobile phones, a large number of mobile data multimedia services and various high-bandwidth multimedia services have emerged, such as video conferences, TV broadcasts, video on demand, advertisements, online education, interactive games, etc. On the one hand, it satisfies the ever-increasing business demands of mobile users, and at the same time brings new business growth points for mobile operators. These mobile data mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06
Inventor 苟伟马子江陈东丽
Owner 江苏金羿智芯科技有限公司
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