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Subframe selecting method of multimedia broadcast multicast service transmitted by single cell

A technology for multimedia broadcast and multicast services, applied in the field of subframe selection of multimedia broadcast and multicast services, can solve problems such as subframe configuration conflicts, and achieve the effects of convenient resource scheduling and high efficiency

Inactive Publication Date: 2010-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The technical problem to be solved by the present invention is to solve the problem that the subframe configuration conflicts between the single cell transmission MBMS service and the multi cell transmission MBMS service due to the lack of restrictions on the single cell transmission subframe in the prior art, and proposes a single cell The subframe selection method of the transmitted multimedia broadcast multicast service makes the resource scheduling of the MBMS service in the whole system more convenient, and is conducive to the resource scheduling when multi-cell transmission MBMS

Method used

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  • Subframe selecting method of multimedia broadcast multicast service transmitted by single cell
  • Subframe selecting method of multimedia broadcast multicast service transmitted by single cell
  • Subframe selecting method of multimedia broadcast multicast service transmitted by single cell

Examples

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Embodiment 1

[0063] Assume that all cells in this area are in FDD mode.

[0064] The resources for multi-cell MBMS service transmission are configured by the MCE (one MCE can configure many cells), and the selectable subframes are #1, #2, #3, #6, #7, #8. The resources for transmitting MBMS services in a single cell are configured by the base station, and the selectable or preferential subframes are #5, #0, #4, and #9. How to use subframes #5, #0, #4, and #9 is described as follows:

[0065] If the MBMS service volume transmitted by a single cell is small, that is, when the MBMS service volume can be carried by the #5 subframe, only the #5 subframe is configured to transmit the MBMS service in a single cell, because the subframe #5 has a relative subframe #0. With more resources, it is much less likely that #4 and #9 are configured as paging subframes (subframes #0 and #5 have the same possibility of being configured as paging subframes). As the MBMS service volume of a single cell increases, ...

Embodiment 2

[0070] Assume that the cells in this area are all in TDD mode.

[0071] Since the TDD mode of LTE has 7 different ratios of uplink and downlink subframe configuration methods, as shown in Table 3, the subframes for multi-cell transmission of MBMS services are specified in LTE except for subframes #0, #1, #5, # Non-uplink subframes other than 6.

[0072] Table 3 LTE uplink and downlink subframe configuration table

[0073]

[0074] In Table 3, D represents a downlink subframe, U represents an uplink subframe, and S represents a switching subframe from downlink to uplink.

[0075] The resources for multi-cell transmission of MBMS services are configured by the MCE (one MCE can configure many cells), and the selectable subframes are non-uplink subframes other than subframes #0, #1, #5, and #6. The resources for transmitting MBMS services in a single cell are configured by the base station, and the selectable or preferential subframes are #0, #5, #1, and #6. For the specific usage of su...

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Abstract

The invention discloses a subframe selecting method of a multimedia broadcast multicast service (MBMS) transmitted by a single cell. The method comprises the following steps of: preferentially selecting a subframe which cannot be used by multi-cell transmission of MBMS service by a base station; then selecting a subframe which is not used by multi-cell transmission of MBMS service and sending a single-cell MBMS service; or only selecting the subframe which cannot be used by multi-cell transmission of MBMS service and sending the single-cell MBMS service. By adopting the method, the conflicts of subframe configurations during single-cell transmission of MBMS service and multi-cell transmission of MBMS can be avoided so as to ensure that the resource scheduling of the MBMS service in the whole system is more convenient, which is beneficial to realizing the resource scheduling during multi-cell transmission of MBMS service and realizing the high efficiency of the whole MBMS system.

Description

Technical field [0001] The present invention relates to an LTE (Long Term Evolution, Long Term Evolution) system, in particular to a single-cell transmission (Single-cell transmission) Multimedia Broadcast Multicast Service (MBMS) subframe selection method. Background technique [0002] With the rapid development of the Internet and the popularity 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 conferencing, TV broadcasting, video on demand, advertising, online education, interactive games, etc. This aspect meets the rising business needs of mobile users, while also bringing new business growth points for mobile operators. These mobile data multimedia services require multiple users to receive the same data at the same time. Compared with general data services, they have the characteristics of large data volume, long duration, and time delay sensitivity. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W72/12H04B7/26
CPCH04W72/005H04W72/1257H04W72/30H04W72/535
Inventor 苟伟王斌毕峰
Owner ZTE CORP
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