Answer Posted / ravi

Error ratios used in conjunction with GSM speech channels:
· Frame Erasure Rate, FER, is defined as the amount of swept speech frames (260 bits each)
divided by the amount of transmitted speech frames. The speech frame is swept if even one of
its most important 50 bits is observed not to be correct. The three parity bits following the 50
class Ia bits are used for error detection.
· Bit Error Rate, BER, is the ratio of erroneously received bits to all received bits. It is
important to notice that BER is evaluated before channel decoding, i.e. after equaliser. BER is
used for defining the RXQUAL value

What do you mean by arfcn in gsm technology?

920

---

What is the maximum data rate supported by a gsm system?

976

---

What is tmsi in gsm technology?

957

---

What do you mean by extended cell? Does it have any impact on the system? If yes, what?

952

---

What is the difference between rx lev sub and rx lev full? What you mean by link budget?

1105

---

What is transmitted power control in gsm technology?

884

---

Explain imsi in gsm technology?

1035

---

What is dtx in gsm technology?

976

---

What is base band frequency hopping in gsm technology?

881

---

Explain wps?

991

---

Explain about imei in gsm technology?

907

---

What do you mean by arfcn?

994

---

What do location update mean? Why do we need them?

959

---

Which is the digital modulation used today in telecom?

907

---

What do you mean power control in gsm technology?

920

---