Control method, system and equipment of MBMS time synchronization

A technology of time synchronization and control method, applied in the field of communication, can solve the problem that transmission delay estimation cannot dynamically adjust the broadcast range, and achieve the effect of improving accuracy and service experience

Active Publication Date: 2013-07-31
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

That is to say, the transmission delay estimation cannot be dynamically adjusted according to the MBMS service broadcast range

Method used

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  • Control method, system and equipment of MBMS time synchronization
  • Control method, system and equipment of MBMS time synchronization
  • Control method, system and equipment of MBMS time synchronization

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Embodiment Construction

[0049] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] In the prior art, the IUR interface MBMS service synchronization, such as figure 2 As shown, it mainly includes the following steps:

[0051] Step 201, after SRNC receives MBMS SESSION START message, establishes MBMS service, comprises MBMS_IU establishment and MBMS_IUB establishment process, then responds successfully to CN;

[0052] After step 202, DRNC receives the MBMS SESSION START message, execute the MBMS IU establishment process, then send MBSFN (Multi-Media Broadcast over...

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Abstract

The embodiments of the present invention disclose a method, system and device for controlling time synchronization for Multimedia Broadcast Multicast Service (MBMS). The method includes: a Serving Radio Network Controller (SRNC) obtains the maximum IUB transmission delay of Node Bs; according to the maximum IUB transmission delay, the SRNC obtains the transmission delay of time synchronization; according to the transmission delay of time synchronization, the SRNC specifies a Connection Frame Number (CFN), which enables the Node Bs to transmit data according to the CFN specified by the SRNC. With the present invention, all Node Bs in MBMS synchronization area are enabled to transmit data according to the CFN specified by the SRNC with the minimum transmission delay T, and the accuracy for time synchronization and the service experience are improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a control method, system and equipment for MBMS time synchronization. Background technique [0002] In the prior art, IUR interface MBMS (Multimedia Broadcast Multicast Service, Multimedia Broadcast Multicast Service) business synchronization, such as figure 1 As shown, the basic content includes: [0003] (1) An MBMS synchronization area can span multiple RNCs (Radio Network Controllers, radio network controllers). The operator configures the role of each RNC in the area through O&M (Operation and Maintenance), that is, configures a SRNC (Serving Radio Network Controller, serving radio network controller), and other RNCs are configured as DRNC (Drift Radio Network Controller, drifting radio network controller). [0004] (2) For an MBMS service, a group of shared GTPU (GPRSTunneling Protocol for User Plane, GPRS tunneling protocol user plane) / PDCP (PacketData Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W56/00
CPCH04W92/12H04W56/001
Inventor 段江海
Owner DATANG MOBILE COMM EQUIP CO LTD
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