Title :
Capacity analysis of TDD cell sharing underutilized FDD uplink
Author :
Kim, Dong Hoi ; Song, Pyeong Jung ; Kang, Chung Gu
Author_Institution :
ETRI, Taejon, South Korea
Abstract :
This paper considers a two-layer hierarchical cell structure with the microcell employing the TDD system and the macrocell employing the FDD system. We determine the downlink and uplink capacities on the TDD system sharing the underutilized FDD uplink under the condition that the FDD and TDD systems share the same frequency band. Our analysis shows that in the course of planning the hierarchical cell structure, the optimum user distribution in the TDD cell can be found by utilizing the link balance and asymmetry between uplink and downlink in the TDD in order to improve the overall capacity
Keywords :
broadband networks; channel capacity; code division multiple access; microcellular radio; multiuser channels; radio links; radio networks; telecommunication network planning; time division multiple access; FDD system; TDD cell sharing; TDMA duty cycle; WCDMA/TDD systems; capacity analysis; downlink capacity; link balance; macrocell; microcell; optimum user distribution; planning; two-layer hierarchical cell structure; underutilized FDD uplink; uplink capacity; Bandwidth; Downlink; Frequency; Interference; Macrocell networks; Microcell networks; Mobile communication; Multiaccess communication; Postal services; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944162
