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: 2014-06-25
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

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Embodiment 1

[0063] It is assumed that the cells in this area are all in FDD mode.

[0064] The resources for transmitting MBMS services in multiple cells 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 for the single cell transmission of the MBMS service, because subframe #5 has With more resources, compared with #4, #9 is much less likely to be configured as paging subframes (subframes #0 and #5 are less likely to be configured as paging subframes). As the MBMS service volume of a single cell increases, the #...

Embodiment 2

[0070] It is assumed that the cells in this area are all in TDD mode.

[0071]Since the TDD mode of LTE has 7 configurations of uplink and downlink subframes with different proportions, as shown in Table 3, the subframes for multi-cell transmission of MBMS services specified in LTE are 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 transmitting MBMS services in multiple cells are configured by the MCE (one MCE can configure many cells), and the selectable subframes are non-uplink subframes except 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, a...

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Abstract

A method for selecting subframes of single-cell transmission of Multimedia Broadcast Multicast Service (MBMS) is provided by the present invention. The method includes: the base station only uses subframes that cannot be used for multi-cell transmission of MBMS service to transmit single-cell MBMS service; or when the subframes that cannot be used for multi-cell transmission of MBMS service are not enough for the base station to transmit single-cell MBMS service, it is judged if subframes that are not used for multi-cell transmission of MBMS service are present, and if present, subframes that are not used for multi-cell transmission of MBMS service are selected to transmit single-cell MBMS service. Using the method of the present invention, the conflict of the subframe configuration is avoided when single-cell transmission of MBMS service and multi-cell transmission of MBMS service are performed. The schedule of the resources of MBMS service in the whole system is more convenient, the schedule of the resources is favorable to be implemented when multi-cell transmission of MBMS service is performed, and the high efficiency of the whole MBMS system is implemented.

Description

technical field [0001] The present invention relates to an LTE (Long Term Evolution, Long Term Evolution) system, and in particular to a subframe selection method for a Multimedia Broadcast Multicast Service (MBMS) for Single-cell transmission. 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 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(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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