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Method and system for realizing multimedia broadcasting and multicasting service transmission channel bearing

A technology for multimedia broadcasting and multicasting services, applied in the field of long-term evolution systems, can solve problems such as the lack of MTCH bearer implementation solutions, achieve flexible resource allocation granularity, improve spectrum efficiency, and reduce waste

Inactive Publication Date: 2010-11-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, at present, there is no specific implementation plan for MTCH bearer

Method used

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  • Method and system for realizing multimedia broadcasting and multicasting service transmission channel bearing
  • Method and system for realizing multimedia broadcasting and multicasting service transmission channel bearing
  • Method and system for realizing multimedia broadcasting and multicasting service transmission channel bearing

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0072] Example 1: For the case where the average data volume of the MTCH exceeds one MBSFN subframe, the system side allocates corresponding bearer resources for each MTCH according to the data volume carried by each MTCH. Specifically, consecutive MBSFN subframes are assigned to each MTCH to bear MBMS service data. The data of the MTCH is preferentially filled in subframes earlier in time. When the remaining data volume of the MTCH is not enough to fill the last MBSFN subframe, the following two methods can be used for processing.

[0073] The first way: continue to fill the last MBSFN subframe with PRB, OFDM symbol, subcarrier or subcarrier cluster as the basic unit, but the MBSFN subframe does not carry other MTCH data. The second method: continue to fill the last MBSFN subframe with PRB, OFDM symbol, subcarrier or subcarrier cluster as the basic unit, and allow other MTCHs to continue to use PRB, OFDM symbol, subcarrier or A subcarrier cluster is the basic unit for paddin...

example 2

[0076] Example 2: When the average data volume of MTCH is small, such as the situation that one MBSFN subframe cannot be filled, a simple processing method is: the system side directly allocates one MBSFN subframe for this MTCH, and no Multiplexing with other MTCHs. Such resource allocation is the easiest to implement, and the signaling overhead is the smallest, but the resource utilization rate of the system is low. Another processing method is: the system side evaluates the data volume of each MTCH, and after bundling multiple suitable MTCHs, it can fill one MBSFN subframe, or very nearly fill one MBSFN subframe. The system side allocates these MTCHs in one MBSFN subframe, and multiple MTCHs are multiplexed in the MBSFN subframe with PRB or OFDM symbol, subcarrier or subcarrier cluster as the basic unit. Among them, in terms of evaluating the data volume of each MTCH and bundling multiple suitable MTCHs, it is actually bundling multiple MTCHs carrying MBMS services with the...

example 3

[0079] The third example is: one or more MTCHs are carried on the MBSFN subframe with PRB as the basic unit, and multiplexed.

[0080] Such as Figure 4 As shown, in a subframe, one MTCH is represented as MTCH1, which is carried by PRB as the basic unit; another MTCH different from MTCH1 is represented as MTCH2, which is also carried by PRB as the basic unit, so that multiple Multiplexing of MTCHs in a subframe. When some resources in the PRB are used by other information, such as system messages and control information, the occupied resources should be removed from the PRB.

[0081] The beneficial effect is that the PRB of the unicast service stipulated by LTE is used for the MTCH, so that the utilization rate of the system resource can be improved to the greatest extent in the MTCH bearer, and the waste of the system resource can be avoided. Similar to unicast service resource allocation, the existing unicast service control signaling format can be used directly.

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Abstract

The invention discloses a method for realizing multimedia broadcasting and multicasting service transmission channel bearing, which comprises the following steps of: according to the difference among data quantities borne by multimedia broadcasting and multicasting service transmission channels (MTCH), respectively allocating at least two continuous multimedia broadcasting single-frequency network (MBSFN) subframes to each MTCH for use to realize the data bearing of the MTCH, or allocating one MBSFN subframe to each MTCH for use to realize the data bearing of the MTCH. The invention also discloses a system for realizing multimedia broadcasting and multicasting service transmission channel bearing. In the system, a bearing unit is used for adopting the at least two allocated MBSFN subframes to realize the data bearing of the MTCH, or is used for adopting the one allocated MBSFN subframe to realize the data bearing of the MTCH. By using the method and the system, the specific bearing of the relevant MTCH can be realized.

Description

technical field [0001] The present invention relates to a long-term evolution (LTE, Long Term Evolution) system, and in particular to a method and system for realizing the carrying of a transmission channel (MTCH, MBMS Traffic Channel) of a multimedia broadcast and multicast service (MBMS, Multimedia Broadcast Multicast Service). 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. In this way, the ever-increasing business demands of mobile users are met, and at the same time, new business growth points are brought to mobile operators. These mobile data multimedia services require multiple users to receive the same data at the same time. Compared with general dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W72/12
CPCH04W72/005H04W72/30
Inventor 苟伟马子江
Owner ZTE CORP
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