Title:
CDMAにおける符号割り当て
Document Type and Number:
Japanese Patent JP4296713
Kind Code:
B2
Abstract:
In spread spectrum communications, a method for allocating and re-allocating channelization codes to new and existing channels in a way that makes the maximum number of codes available at a given time for channels of different rates and different spreading factors. If re-allocations are not performed, a communication system employing the invention has a higher capacity than a system employing a random allocation strategy. The invention also reduces signaling overhead for re-allocations in comparison to a random allocation strategy because fewer re-allocations are necessary.
Inventors:
Magnusson, Svelker
Beming, pel
Magnus, Parson
Khan, Farouk
Beming, pel
Magnus, Parson
Khan, Farouk
Application Number:
JP2000577788A
Publication Date:
July 15, 2009
Filing Date:
October 15, 1999
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
H04B7/26; H04J11/00; H04J13/00; H04J13/20
Domestic Patent References:
| JP10190520A | ||||
| JP2003204287A | ||||
| JP2001510297A |
Foreign References:
| EP0814581A1 | ||||
| WO1995003652A1 | ||||
| WO1998052307A1 |
Other References:
Koichi Okawa, Fumiyuki Adachi,‘Orthogonal multi-spreading factor forward link for coherent DS-CDMAmobile radio’,Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on,1997年10月12日,pp. 618-622
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori
Kobayashi Yoshinori
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