›› 2014, Vol. 27 ›› Issue (5): 1-.

• Articles •     Next Articles

U-TDOA Positioning Method for TD-SCDMA Systems

LI Wenlong,JIAO Ronghua,LI Xiaohui   

  1. (1.State Key Lab.of ISN,Xidian University,Xi'an 710071,China;2.Operation and Management Center,Northwest Regional Administration of CAAC,Xi'an 710086,China)
  • Online:2014-05-15 Published:2014-05-14


The multi-BS positioning technology in TD-SCDMA systems is studied in this paper.The uplink-time difference of arrival (U-TDOA) poisoning method based on synchronous uplink (SYNC-UL) of TD-SCDMA systems is proposed,which doesn't need to improve the functionality of mobiles.To achieve the uplink synchronous of TD-SCDMA system,the length of SYNC-UL is twice as much as SYNC-DL.It is easy to measure the distance using correlation peek based on SYNC-UL.Then establish hyperbola mathematical model to calculate mobiles' position.From the simulation results we can conclude that the positioning performance of U-TDOA is better than the performance of the positioning method using SYNC-DL.

Key words: TD SCDMA;multi BS positioning;synchronous uplink;U TDOA

CLC Number: 

  • TN929.1