5 Radio Transmission and Reception

03.523GPPLower layers of the GSM Cordless Telephony System (CTS) radio interfaceStage 2TS

The CTS-FP and CTS-MS shall in Phase 1 GSM-CTS conform to the transmission and reception specifications of at least one or more of the following cellular standards:

– P-GSM900;

– E-GSM900;

– DCS1800;

– PCS1900.

The final choice of characteristics and performance requirements depends on system scenario calculations.

5.1 Frequency Band and Channel Arrangement

The frequency band and channel arrangement for the GSM-CTS are as specified in GSM 05.05 clause 2.

5.2 Receiver Characteristics

5.2.1 CTS-MS characteristics

It is the intention to keep the CTS-MS characteristics in line with the GSM-MS characteristics as specified in GSM 05.05 clause 5, but the final decision depends on system scenario calculations.

5.2.2 CTS-FP characteristics

It is the intention to keep the CTS-FP characteristics in line with the GSM-MS characteristics as specified in GSM 05.05 clause 5, but with reversed frequency bands. The final decision depends on system scenario calculations.

5.3 Transmitter Characteristics

5.3.1 CTS-MS characteristics

It is the intention to keep the CTS-MS characteristics as far as possible in line with the GSM-MS characteristics as specified in GSM 05.05 clause 4, but the final decision depends on system scenario calculations.

In addition, it is intended to lower the maximum nominal output power and the lowest nominal output power to values which shall be determined by system scenario calculations. Both values could be below the nominal output powers specified in GSM 05.05 subclause 4.1.1.

5.3.2 CTS-FP characteristics

It is the intention to keep the CTS-FP characteristics as far as possible in line with the GSM-MS characteristics as specified in GSM 05.05 subclause 4, but with reversed frequency bands. The final decision depends on system scenario calculations.

In addition, it is intended to lower the maximum nominal output power and the lowest nominal output power to values which shall be determined by system scenario calculations. Both values could be below the nominal output powers specified in GSM 05.05 subclause 4.1.1.

5.4 CTS transmitter / receiver performance

It is the intention to keep the CTS transmitter / receiver performance in line with the GSM transmitter / receiver performance as specified in GSM 05.05 clause 6.

The GSM requirement on receiver performance for frequency hopping where frequencies are interfered shall be fulfilled by both the CTS-MS and CTS-FP.