Uplink multi-user pilot frequency method for reducing interference among cells

Uplink multi-user pilot frequency method for reducing interference among cells

  • CN 102,170,343 B
  • Filed: 02/06/2006
  • Issued: 06/17/2015
  • Est. Priority Date: 02/06/2006
  • Status: Active Grant
First Claim
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1. for a uplink multi-user pilot method for the reduction presence of intercell interference of Single Carrier-Frequency Division multi-address system SC-FDMA, it is characterized in that, described method comprises:

  • In community with the minimum sub-carrier resources block of wireless resource scheduling for unit, user in described community receives the minimum sub-carrier resources block distributing and obtain, the quantity of the minimum sub-carrier resources block that the user in described community and other users of different requirement in described community receive is different, and the pilot tone of the user in described community is orthogonal on frequency domain with the pilot tone of other users in described community;

    Wherein, pilot tone in each minimum sub-carrier resources block uses normal amplitude-zero autocorrelation sequence repeated, and makes the pilot tone of the user in described community orthogonal in code domain with the pilot tone of the user of neighbor cell according to the their cross correlation of normal amplitude-zero autocorrelation sequence described between neighbor cell.

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