Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
the rate control in HSDPA works in a similar way as EV-DO system. For the latter, Tse and Viswanath have an excellent descriptions pp. 209-213 of
**broken link removed**
1- each user(mobile) calculates SIR(signal interference ratio ) from each base and then select the Then, it selects the base with the highest pilot strength as the serving base.
2- The mobile notifies the selected site (base) to the access network, with the received SIR of the pilot channel measured from the selected base
3- The selected base determines the MCS level for the corresponding mobile, using the received pilot SIR notified from the mobile.
a) The base estimates the received SIR of a channel using the pilot SIR reported from a mobile depend on power allocation of HSDPA and code allocation (number of codes using in HSDPA).
b) then go to link level simulation graph (FER value as a function of the received SIR of a channel and the MCS level)
c) depend on SIR graph,each user get MCS (modulation and coding scheme)
for example
- coding rate (1/2 turbo code) and QPSK results data rate 480 bits/frame for one code.
- coding rate (1/2 turbo code) and 16QAM results data rate 960 bits/frame for one code ( if using 10 code then data rate 9600 bits/frame).
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.