Title :
The development of CDMA handset with transmit and receive diversity
Author :
Kim, In Kwang ; Jang, Woo Jin ; Shim, Bo Wook ; Yoon, Sang Sik ; Jung, Jin Woo ; Ahn, Soo Kyung ; Cha, Jong Ho ; Lee, Hong Woo ; Lee, Jun Woo
Author_Institution :
Adv. Dev. Team, SKY Teletech, Seoul, South Korea
Abstract :
This paper describes characteristics of the handset with transmit and receive diversity. A 2nd antenna was added to the existing commercial handset. QUALCOMM´s MSM6500 chip was used for receive diversity, and the DiversityPlus™ technique of Magnolia Broadband, Inc., was used for transmit diversity. The test result of receive diversity was 4.1 dB SINR gain and 35% forward link traffic throughput gain. In the case of transmit diversity, there was 3.7-4.8 dB transmit power gain and 19% reverse link traffic throughput gain.
Keywords :
cellular radio; code division multiple access; diversity reception; telecommunication traffic; 3.7 to 4.8 dB; CDMA handset; DiversityPlus technique; MSM6500 chip; Magnolia Broadband, Inc; QUALCOMM; SINR; forward link traffic throughput gain; receive diversity; reverse link traffic throughput gain; transmit diversity; Base stations; Fading; Multiaccess communication; RAKE receivers; RF signals; Radio frequency; Receiving antennas; Signal to noise ratio; Telephone sets; Transmitting antennas; CDMA; Diversity; handset; power control;
Conference_Titel :
Networks, 2005. Jointly held with the 2005 IEEE 7th Malaysia International Conference on Communication., 2005 13th IEEE International Conference on
Print_ISBN :
1-4244-0000-7
DOI :
10.1109/ICON.2005.1635579
