中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.02 seconds)

    MODELLING OF CELLULAR COMMUNICATION SYSTEMS
    3.
    发明申请
    MODELLING OF CELLULAR COMMUNICATION SYSTEMS 审中-公开
    蜂窝通信系统的建模

    公开(公告)号：WO2007078467A2

    公开(公告)日：2007-07-12

    申请号：PCT/US2006045476

    申请日：2006-11-28

    Applicant: MOTOROLA INC ,  VILLIER ERIC ,  HILL STEPHEN

    Inventor： VILLIER ERIC ,  HILL STEPHEN

    IPC: G06F7/38 ,  H04W16/18

    CPC classification number: H04W16/18

    Abstract: A method of generating a model of a cellular communication system comprises generating (101) a first cell layout for a first area and then generating (103) a displaced set of cell layouts corresponding to the first cell layout displaced in a different directions such that it borders the first cell layout. A unique mapping exists between the cells of the first set and of the displaced sets. A model location set is generated (105) comprising a plurality of locations within the first area. For each location and for the cells of the first cell layout, the method comprises evaluating (111) an interference characteristic for cells of a cell group containing all the corresponding cells in the different cell layouts. A cell is then selected (113) from the cell group as an interfering cell for the location. The resulting model provides improved wrap around performance while achieving low computational burden for performance evaluation based on the model.

    Abstract translation: 一种生成蜂窝通信系统的模型的方法包括：产生（101）第一区域的第一小区布局，然后生成（103）与在不同方向上移位的第一小区布局对应的移位的小区布局集，使得 与第一个单元格布局相邻。 在第一集合和移位集合的单元之间存在唯一的映射。 生成包括第一区域内的多个位置的模型位置集合（105）。 对于每个位置和第一单元布局的单元，该方法包括评估（111）包含不同单元布局中的所有对应单元的单元组的单元的干扰特性。 然后从小区组中选择一个小区（113）作为该位置的干扰小区。 所得到的模型提供了改进的环绕性能，同时基于该模型实现了对于性能评估的低计算负担。

    A packet scheduler and method
    4.
    发明专利
    A packet scheduler and method 未知

    公开(公告)号：GB2361147A

    公开(公告)日：2001-10-10

    申请号：GB0007853

    申请日：2000-03-31

    Applicant: MOTOROLA INC

    Inventor： HILL STEPHEN

    IPC: H04B7/005 ,  H04Q7/22

    Abstract: In a CDMA cellular communication network, packet data may be broadcast at a discontinuous rate using a packet scheduler 7 which utilises available communication resources in each cell more efficiently than for continuous transmission. To maintain quality of service requirements, each packet scheduler is associated a power bin (9,10,11) which represents the total power available for transmission and reception in the cell. The maximum power level for each power bin may be adjusted in dependence of the quality of service experienced in each cell. A cell experiencing high levels of traffic may have its power bin increased to maintain acceptable carrier to interference levels at mobile stations 4,5, this is achieved by reducing the power bins of neighbouring cells which reduces intercell interference. Cell power levels are calculated using a genetic algorithm.

    A packet scheduler and method
    8.
    发明专利
    A packet scheduler and method 未知

    公开(公告)号：GB2360909A

    公开(公告)日：2001-10-03

    申请号：GB0007848

    申请日：2000-03-31

    Applicant: MOTOROLA INC

    Inventor： LEGG PETER JONATHON ,  BARRETT STEPHEN ,  HILL STEPHEN

    IPC: H04B7/005 ,  H04L12/28 ,  H04L12/56 ,  H04Q7/22

    Abstract: In a CDMA cellular communication network, packet data may be broadcast at a discontinuous rate using a packet scheduler (7) which utilises available communication resources in each cell more efficiently than for continuous transmission. To maintain quality of service requirements, each packet scheduler is associated a power bin (9,10,11) which represents the total power available for transmission and reception in the cell. If a base station is experiencing a higher level of traffic than its neighbours, the power bin for that cell may be increased with quality of service requirements being maintained by decreasing the power bins of neighbouring cells. Reducing the maximum transmission value for an under utilized base station, decreases intercell interference in neighbouring cells. This means that more packets can be scheduled to an overloaded cell (1) without increasing transmission power, whilst maintaining a target signal to interference ratio at a receiver. (4,5).

Patent Agency Ranking