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Frequency layer scattering method and device for multimedia broadcast multicast service in wireless network

A technology for multimedia broadcasting and multicasting services, which is applied in the field of discrete frequency layers and can solve problems such as inapplicability of MBMS services

Active Publication Date: 2006-10-04
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, cell reselection assigned by the network during the deactivation process will introduce additional signaling load, and this technology is not suitable for MBMS services in broadcast mode, because there is no deactivation process for broadcast services

Method used

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  • Frequency layer scattering method and device for multimedia broadcast multicast service in wireless network
  • Frequency layer scattering method and device for multimedia broadcast multicast service in wireless network
  • Frequency layer scattering method and device for multimedia broadcast multicast service in wireless network

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Embodiment Construction

[0029] The present invention will be described in detail below with reference to the drawings and in conjunction with specific embodiments. It should be understood that the present invention is not limited to specific embodiments.

[0030] figure 1 It is a schematic diagram of a wireless network, which includes multiple user equipment (UE) 1 (for brevity, only one UE is shown here), a radio network controller (RNC) 2 and a core network (CN) 3. CN 3 initiates an MBMS service downlink session, and establishes a broadcast channel with UE 1 through RNC 2. In the prior art, after CN 1 stops the session, RNC 2 sends a frequency layer dispersion (FLD) indication information to UE 1.

[0031] Different from the prior art, in the present invention, the RNC 2 sends the frequency layer dispersion (FLD) indication information after establishing the downlink radio bearer of the MBMS service, and the FLD indication message can last until the session ends. RNC 2 decides on its own the number o...

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Abstract

The invention provides a method and device used in the frequency layer separation of the multimedia broadcast business in the wireless network. It makes the network end to send FLD (frequency layer separation) information during the multimedia broadcast business conversational course; so that UE receives the MBMS business before it finishes the conversational and can automatically do the frequency layer separation based on the received FLD information.

Description

Technical field [0001] The present invention relates to multimedia broadcast and multicast technologies of wireless networks, and more specifically, to a method and device for frequency layer dispersion in multimedia broadcast and multicast services of wireless networks. Background technique [0002] Currently, MBMS (Multimedia Broadcast Multicast Services) has introduced two interrelated technologies: frequency layer convergence and frequency layer dispersion. Since each MBMS service can be sent on multiple frequency points at the same time, and the content on each frequency point is the same, this makes it possible to gather receiving users on multiple frequency points into one frequency point. The frequency-layer convergence technology greatly saves wireless resources and improves the spectrum utilization of MBMS services. What MBMS provides is a broadcast or multicast service. This type of service can support more user equipment (UE) than other services such as interactive se...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04W4/06H04W28/16
Inventor 陈宇晁华汪勇刚王楠
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD