Next, we investigate the traffic characteristics of these mobility user groups. Note that non mobility does not mean that the users don’t move for the whole week. Instead, it just indicates that this kind of users likes to use data service of cellular network in one place (cell) or they rarely use the data service. Therefore, we study the number of flows and traffic size the non mobility users generated in the week. We find that, with the increase of the number of flows the non mobility users generated, the traffic size for each user increases. Most non mobility users consume less than 2 flows and 3KB traffic in the week. However, there still exist very few non mobility users who generated more than 100 MB traffic in the week.
To evaluate the user movements in different time frames, Fig. 7 presents the average number of cells accessed by users in each group per hour of the week.