发明申请
- 专利标题: Handover for Cellular Radio Systems
- 专利标题(中): 移动无线电系统
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申请号: US13115388申请日: 2011-05-25
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公开(公告)号: US20110223906A1公开(公告)日: 2011-09-15
- 发明人: Steven Hall , Steven Baines , David Bevan , Andrew Jeffries
- 申请人: Steven Hall , Steven Baines , David Bevan , Andrew Jeffries
- 申请人地址: CA Mississauga
- 专利权人: NORTEL NETWORKS LIMITED
- 当前专利权人: NORTEL NETWORKS LIMITED
- 当前专利权人地址: CA Mississauga
- 优先权: GB0724904.8 20071221
- 主分类号: H04W24/02
- IPC分类号: H04W24/02
摘要:
In a cellular wireless system, power thresholds used for determining whether or not to add or drop servers held in a set of servers, such as an active set, for serving a user equipment are determined on the basis of the motion of the respective user equipment. A lower threshold may be used with respect to the adding or dropping of a given server to or from a set of servers for serving a fast moving user equipment than would be used for the same server with respect to its adding or dropping to or from a set of servers for serving a slow moving user equipment, while maintaining a given quality of service. As a result, the average number of servers held in sets is reduced in a typical network that comprises a plurality of user equipments moving at different speeds, compared to a situation in which the threshold is set irrespective of the motion of a user equipment. A reduction in the average number of servers held in sets of servers for serving the user equipment has the benefit of reducing data traffic loading in a backhaul network, since the need to send duplicated data to each member of sets of servers is reduced and/or increasing network capacity, since the radio resource is used more efficiently because the proportion of servers sending duplicate data is reduced.
公开/授权文献
- US08208926B2 Handover for cellular radio systems 公开/授权日:2012-06-26