Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2004-04-23
2009-02-17
Bhattacharya, Sam (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S441000, C370S331000
Reexamination Certificate
active
07493119
ABSTRACT:
A method in a communication system comprising a access network with Radio Network controllers (RNC) and radio base stations (RBS or Node B) consisting of main units (MU) which performs base band signal processing and one or more radio remote units (RRUs) which converts between baseband and radio frequencies and transmits and receives signals over one or more antennas, covering cells, and one or several User equipment (UE or Phones) moving closer and closer to another cell, which said network is made aware of and then it will initiate a handover process, during which the call will be transferred from one cell to another cell within said radio base station (RBS or Node B)or to a cell in another Radio base station (RBS or Node B)in said communication network. Said handover process interact with a memory containing a list (softer handover group) of said radio remote units (RRUs) capable of doing softer handover with each other using the same Rake receiver.
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Ganesh, R., et al. Coverage considerations for CDMA overlay of Rural analog sites, IN: 2000 IEEE International Conference on Personal Wireless Communications, Hyderbad, India, Dec. 17-20, 2000, pp. 288-292, Inspec An: 6977265, section I; abstract.
Swedish Patent Office, International Search Report for PCT/SE2004/000631, dated Aug. 11, 2004.
Aschermann Benedikt
Bergström Anders
Österling Jacob
Bhattacharya Sam
Burleigh Roger S.
Telefonaktiebolaget L M Ericsson (PUBL)
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