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Method and device for scheduling resource for services of multicast and grouped cast in wireless access network

A technology for resource scheduling and multicast services, which is applied in wireless communication, broadcast service allocation, radio/induction link selection and arrangement, etc. It can solve the essential requirements of RF combining and MBMS scheduling technology cannot meet E-MBMSRF combining requirements and other issues to achieve the effect of meeting the requirements of RF mergers

Active Publication Date: 2007-12-26
ALCATEL LUCENT SHANGHAI BELL CO LTD
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Problems solved by technology

Moreover, since the existing MBMS scheduling scheme is mainly based on R6, it does not take into account the essential requirements of RF combining, that is, at the physical layer, different base stations in the SFN allocate the same MBMS service data in each TTI The PRB must be identical to this requirement
[0008] Therefore, the existing MBMS scheduling technology (based on R6) cannot meet the RF combining requirements of E-MBMS, and a new scheduling technology is needed to solve this problem

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  • Method and device for scheduling resource for services of multicast and grouped cast in wireless access network
  • Method and device for scheduling resource for services of multicast and grouped cast in wireless access network
  • Method and device for scheduling resource for services of multicast and grouped cast in wireless access network

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Embodiment Construction

[0022] Fig. 1 is a network structure diagram for centralized scheduling of resources for multicast services according to a specific embodiment of the present invention. It includes an access gateway (ie, network switching device) 1, multiple base stations (ie, network nodes), multiple BM-SCs (ie, multicast service sources) and multiple user equipments. Wherein, for simplicity, only one base station 2 is shown.

[0023] Considering that the network structure in LTE has evolved into a two-layer architecture of access gateway and evolved base station, there is no longer an RNC. The functions of the original RNC will be shared by the above two layers of network equipment. Wherein, since each base station is independent of each other, they cannot know their respective MBMS service distribution information, which requires the access gateway as an upper node to perform centralized processing. That is, centralized PRB scheduling is performed based on the access gateway.

[0024] In...

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Abstract

The invention is used for solving the issue that is the currently-used technology can't satisfy the RF integration needs of E-EMBMS. The network switching device makes centralized scheduling for the resource allocation of multicast according to the service-correlated information and service-mapping information, so as to realize the support to the RF integration.

Description

technical field [0001] The present invention relates to a wireless access network, in particular to a method and equipment for resource scheduling for multicast and multicast services (hereinafter collectively referred to as multicast services) in the wireless access network. Background technique [0002] E-MBMS (Evolved Multimedia Broadcast and Multicast Service) is an evolution of MBMS (Multimedia Broadcast and Multicast Service) on 3GPP (Third Generation Partnership Project) LTE (Long Term Evolution). Because it adopts a transmission technology based on Orthogonal Frequency Division Multiplexing (OFDM) at the physical layer, it is completely different from the technology adopted by MBMS in the WCDMA Release6 (hereinafter referred to as R6) protocol. The difference in transmission technology makes E-MBMS have many characteristics that traditional MBMS does not have, such as the transmission characteristics of SFN (Single Frequency Network). [0003] In order to meet the p...

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Application Information

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IPC IPC(8): H04Q7/22H04L29/06H04W4/06H04W72/04H04W72/12
Inventor 王河汪勇刚胡中骥晁华
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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