A method for inter-frequency transmission of multicast broadcast and multicast service

A technology for multimedia broadcast and multicast services, which is applied in the field of multimedia broadcast and multicast service transmission, can solve the problems of inability to guarantee the receiving quality of MBMS services, and achieve the effect of eliminating co-channel interference.

Inactive Publication Date: 2008-09-10
ZTE CORP
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the smart antenna cannot be used on the public channel, according to the existing service transmission, when receiving the MBMS service channel on the public channel, it is limited by the service power and inter-cell interference, so that the reception quality of the MBMS service cannot be guaranteed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for inter-frequency transmission of multicast broadcast and multicast service

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A method for transmitting MBMS services at the same frequency in a continuous coverage area according to the present invention comprises the following steps:

[0016] Step 1: According to service provision requirements, network bearer services are divided into MBMS services and non-MBMS services;

[0017] Step 2: For the MBMS service, according to the service characteristics, the service is divided into multiple service groups, and each service group bears the same MBMS service;

[0018] The service group mentioned here may refer to a grouping according to the service coverage relationship. That is, services with the same coverage relationship are grouped into one group. For example, MBMS services 1, 2, and 3 all cover the same area, forming a service group.

[0019] Step 3: dividing the cells in the continuous coverage area into multiple cell groups, and establishing a binding relationship between the service group and the cell group to form an MBMS service area;

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for transmitting MBMS (Multimedia Broadcast/Multicast Service) with the same frequency, which comprises the steps as follows: (a) the MBMS is divided into one or a plurality of service groups according to different service nature; (b) cells in a continuously covered area are divided into one or a plurality of cell groups; the binding relationship between the service groups and the cell groups is established; MBMS service areas are formed; the same MBMS service area adopts the same frequency and time slot for loading the MBMS service; (c) MBMS service scrambles are distributed among the MBMS service areas, and different MBMS service scrambles are distributed to different MBMS service areas; (d) each cell uses MBMS service scrambles of the MBMS service area to which the cell belongs to transmit the MBMS service.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a method for transmitting a multimedia broadcast and multicast service (MBMS: Multimedia Broadcast / Multicast Service) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system. Background technique [0002] Currently, with the commercialization of the third generation mobile communication system, the mobile TV service (Mobile TV) is getting more and more attention from operators. Adopting MBMS to bear the weight of TV business in the TD-SCDMA system has also become an urgent demand. [0003] However, there are some problems in providing MBMS services in the TD-SCDMA system. The point-to-multipoint traffic channel (MTCH) in MBMS point-to-multipoint (PTM) mode is mapped to the forward access channel (FACH), and finally carried on the secondary common control physical channel (SCCPCH). The common physical channel SCCPCH uses an omnidirectional antenna...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B1/10H04Q7/22
Inventor 陈晓斌
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap