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Method and apparatus for conveying down data

A downlink data and data frame technology, applied in the field of data transmission, can solve the problems of reducing system spectrum effect and resource waste, and achieve the effect of improving spectrum effect and resource utilization rate

Active Publication Date: 2009-01-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004]When the downlink dedicated carrier MBMS service is mapped to SCCPCH for transmission, there is no uplink time slot in the TDD frame used, and all time slots are used as downlink time slots. Therefore, the time guard interval DUSP and UDSP between the uplink and downlink time slots in the TDD frame structure become idle resources, resulting in waste of resources and reducing the spectrum effect of the entire system

Method used

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  • Method and apparatus for conveying down data
  • Method and apparatus for conveying down data

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Embodiment Construction

[0017] It can be seen from the analysis of the above prior art that because DUSP and UDSP are not used to transmit data in the B3G downlink dedicated carrier MBMS service, precious time resources and spectrum resources in the system are wasted, and the spectrum effect of the system is correspondingly reduced. Such as image 3 As shown, it is a schematic diagram of the TDD frame structure adopted by the B3G downlink dedicated carrier MBMS service in the embodiment of the present invention. The technical solution proposed here in the embodiment of the present invention is to consider converting the time guard interval required for the mutual conversion of the uplink and downlink into downlink The time slots are used to transmit control data and / or service data provided by content providers, etc., to avoid waste of resources, thereby improving the spectrum effect of the system, and further improving resource utilization.

[0018] The following will describe in detail the realizat...

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Abstract

The invention discloses a downgoing data transmission method and belongs to the field of the ultra-third-generation mobile communication. The method is used to promote the spectrum effect and the resource utilization rate of the B3G MBMS system. The method comprises that a network side monitoring is used to carry the time protection interval which is required by the mutual transformation of the upgoing and the downgoing link in the data frame of the specific downgoing carrier broadcast multicasting service, and the downgoing data is transmitted to the user based on the time protection interval monitored. Correspondingly, the invention also discloses a transmission device of the downgoing data.

Description

technical field [0001] The invention relates to the data transmission technology in the ultra-third-generation mobile communication field, in particular to a downlink data transmission method and device. Background technique [0002] In the Beyond 3G (B3G, Beyond 3G) mobile communication system, the introduced Multimedia Broadcast Multicast Service (MBMS, Multimedia Broadcast Multicast Service) brings a new channel model. Such as figure 1 As shown, it is a schematic diagram of the B3G MBMS channel model, in which there are three logical channels for MBMS services: MBMS point-to-multipoint control channel (MCCH, MBMS point-to-multipoint ControlChannel), MBMS point-to-multipoint traffic channel (MTCH, MBMS point -to-multipoint TrafficChannel) and MBMS point-to-multipoint scheduling channel (MS CH, MBMS point-to-multipointSchedule Channel), these three logical channels are used to carry MBMS service control information, MBMS service data and MBMS service transmission schedulin...

Claims

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Application Information

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IPC IPC(8): H04L29/02
Inventor 杨晓东丁昱孙韶辉
Owner DATANG MOBILE COMM EQUIP CO LTD
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