Transmission using antenna array in CDMA communication system

Transmission using antenna array in CDMA communication system

CN
  • CN 1,373,941 A
  • Filed: 08/17/2000
  • Published: 10/09/2002
  • Est. Priority Date: 09/10/1999
  • Status: Abandoned Application
First Claim
Patent Images

1. an exhibition that is used to have plural transmit antenna (48-52) method of communication system frequently, being characterised in that of this method:

  • Has one of unique one of relevant with this antenna (48-52) pseudo-random wafer sign indicating number sequence leading signal from each transmit antenna (48-52) transmission;

    Before being transmitted, whole these of this receiver reception lead signal;

    Use the pseudo-random wafer sign indicating number sequence filter each this of this leading signal to lead signal before being transmitted;

    Make this lead signal before being filtered and be weighted specific flexible strategy;

    Making up these, to lead signal before being weighted be a combination signal;

    Partially based on the signal quality of this combination signal and compatibly adjust the specific flexible strategy of each this leading signal;

    Transmit a document signal, make the different exhibition frequency version of document signal be transmitted from each antenna (48-52), each version has the wafer sign indicating number recognin of difference with regard to the associated transport antenna;

    AndHave each version of its relative wafer sign indicating number and receive signal and make up the version that these are filtered via filtration, the basis of edition of wherein different document signals and respective antenna (48-52) are led relevant being adjusted flexible strategy and being weighted of signal before.

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