Method for providing an MBMS service in a wireless communication system

A wireless communication system and wireless technology, applied in wireless communication, broadcast service distribution, electrical components, etc., can solve the problem of wasting air interface wireless transmission power resources, etc., to improve the utilization rate of wireless resources, reduce mutual influence, reduce The effect of capacity reduction

Inactive Publication Date: 2006-04-26
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, this solution still wastes the wireless transmission power resources of the air interface when point-to-multipoint transmission on a common transmission channel is used to transmit MBMS service data from the base station to all UEs requesting an MBMS service in the cell

Method used

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  • Method for providing an MBMS service in a wireless communication system
  • Method for providing an MBMS service in a wireless communication system
  • Method for providing an MBMS service in a wireless communication system

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Embodiment Construction

[0022] figure 1 Shows a block diagram of a wireless communication system in which a mobile radio network N comprising a plurality of network elements NE1 to NEn and a plurality of user terminals or UEs T1 to Tn exchange via a wireless air interface AI a downlink channel DC and an uplink channel UC Data information. The network elements NE1 to NEn may eg be base stations or Node Bs, radio network controllers RNC, core network switches or any other communication units generally used for wireless mobile communication. For example, in the case that the wireless communication system provides MBMS service, the mobile network also includes a broadcast-multicast service center, which sends data to be broadcast / multicast to the RNC through the mobile network N. Then, RNC will send MBMS data to its connected Node B, and finally Node B will broadcast / multicast the data to UE requesting MBMS service through wireless air interface AI within the cell area managed by said Node B.

[0023]...

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Abstract

The invention relates to a method for providing an MBMS service in a wireless communications system comprising a mobile network (N) communicating over a radio air interface (Al) with a plurality of UEs (T1 to Tn) desiring to receive the MBMS service in a cell (CA), the method comprising the steps of: using a point to multipoint on a common channel transmission mode with a preset amount of transmission power (106); detecting if there are UEs in the cell (CA) which receive low MBMS service quality with said point to multipoint on a common channel transmission with a preset amount of transmission power set to a value less than the amount of transmission power needed to cover the whole cell area (108); and using ± point to point on dedicated channels transmission mode for such detected UEs receiving low MBMS service quality with said point to multipoint on ± common channel transmission with ± preset amount of transmission power (110).

Description

technical field [0001] The present invention relates to wireless communication systems, and more particularly to a system and method for providing Multimedia Broadcast Multicast Service (MBMS). Background technique [0002] The third generation (3G) evolution of Global System for Mobile Communications (GSM) networks, commonly referred to as Universal Mobile Telecommunications System (UMTS), introduced multicast and broadcast functionality in the core network and radio access network. In the Third Generation Partnership Project (3GPP), which developed these UMTS standards, this concept is called Multimedia Multicast Broadcast Mode Service (MBMS). [0003] MBMS is a unidirectional point-to-multipoint bearer service in which the same data is sent from a single source entity, such as a broadcast multicast service center, to multiple recipients, such as user terminals or user equipment, over mobile networks and wireless air interfaces (UE). These services may typically take the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06
CPCH04W4/06H04W72/30
Inventor 乌尔里希·巴尔特迪特里歇·策勒
Owner ALCATEL LUCENT SAS
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