Patent · US Expired

Transmit/receive compensation for a dual FDD/TDD architecture

US5889814A · kind A · utility

13Cited by
7References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 24, 1997
Grant dateMar 30, 1999
Priority date
Expiry dateFeb 24, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L5/14
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Compensation measurements can be made of the transmit and receive path circuitry of a dual FDD/TDD system which can be selectively operated in either the FDD mode or alternately in the TDD mode. BY selectively controlling the switches coupling low frequency and high frequency receivers and coupling low frequency and high frequency transmitters to a diplexer, compensation measurements can be made for both FDD and TDD modes of operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.