3G network is a system which supports the high speed data and synthesizes multimedia and so on.The cover

the capacity and the grade of service are interweaves.Therefore

we must simultaneously consider the capacity

the different service as well as the different grade of service’s request to achieve the project objective.This article discusses the estimate of wireless covering radius under 3G multiple service environment we introduce the interaction of the link budget

the wireless dissemination model and the multiple services to the radius and so on several important questions.Especially for the load factor

interference margin analysis

this article gives the situation of different cell load uplink budget.This paper have certain signifi cance on the 3G wireless coverage planning and designing.