9 Cross Phase Compatibility

3GPP42.056GSM Cordless Telephony System (CTS), Phase 1Release 16Service descriptionStage 1TS

None identified.

Annex A (informative):
Later phases of CTS

NOTE: This annex will be taken out of later versions of the Stage 1 and moved to 10.56.

In order to make the design of the CTS radio interface "future proof", it is of importance that services that are likely to be introduced in later phases of CTS are considered already in the design of the first phase of the CTS radio interface. The following future services shall be taken into account when the first phase of the CTS radio interface is designed (preferably by re-using the existing GSM protocols for these features):

  • CTS-CTS handover in a CTS multi-cell environment;
  • data and fax services.

Furthermore, later phases of CTS may also include:

  • definition of additional protocols and interface standards towards the fixed network in order to include CTS in IN services in an efficient way;
  • support of multiple fixed lines.

The CTS-GSM handover (in both directions) is a complex issue which needs further study. Thus, it shall for the moment not be considered as a candidate for CTS.

Annex B (informative):
Change History

SMG No.

TDoc. No.

CR. No.

Clauses affected

New version

Subject/Comments

SMG#28

99-049

A001

Integration of SMG10 comments – R98

SMG#28

99-049

A002

4.2.6.4

7.1.0

Management of GSM SS – In order to reduce MS complexity, the MS should behave indifferently in cellular and cordless mode, as much as possible.

SMG#28

99-049

A003

CTS wording clarification: In order to clarify the CTS description, the SMG12 has replaced "MS enrolment" by "MS Enrolment". This clearly separates FP et MS activities.

SMG#28

99-049

A004

Rejected by Plenary, and after removal of Unlicensed band, it was replaced by 0256A005

SMG#28

99-049

A005

3.1, 3.2, 4.1, 4.2.3, 4.2.3.1, 4.2.3.2, 4.3.1,4.4.1, 4.4.6, 5.1.1, 5.1.2, 6., 6.1, 6.3, 6.4, 8

Introduction of a SIM card in the CTS-FP for CTS subscription management: Since the introduction by the SMG12 of a SIM card in the CTS-FP, it is possible to separate GSM operator and CTS operator roles and increase the overall CTS security.

SMG#28

7.1.1

The version number has been updated to 7.1.1 for Public Enquiry.

SMG#29

P-99-378

A006

Overall

7.2.0

The CTS stage 1 requires some clarifications of CTS description in order to align on SMG12 :

CTS-MS « registration » is replaced by « attachment ». Clarification is brought to de-enrolment of a CTS-MS and de-activation of a CTS-FP

SMG#29

P-99-378

A007r1

Overall

7.2.0

The introduction of the feature in the GSM-CTS standard, allows national regulators to allocate licence exempt frequencies to CTS usage.

Reason for revision: clarification of the applicability of the license exempt mode and editorial improvements.

SMG#29

P-99-378

A008r1

Overall

7.2.0

This introduction of CTS-FP connected to PLMN, extend the CTS concept application to all GSM operators. It should not require any changes to the CTS-MS.

8.0.0

Specification upgrade to Release 1997 version 8.0.0

8.0.1

Update to Version 8.0.1 for Publication

Change History

TSG#

TSG doc

WG doc

Spec

CR

Rev

Ph

Cat

Title

Old vers

New vers

WI

s28

P-99-030

98-795

02.56

A001

R98

F

Integration of SMG10 comments

7.0.0

7.1.0

CTS

s28

P-99-030

98-796

02.56

A002

R98

F

Management of GSM SS

7.0.0

7.1.0

CTS

s28

P-99-030

98-749

02.56

A003

R98

D

CTS wording clarification

7.0.0

7.1.0

CTS

P-99-049

02.56

A005

R98

D

Introduction of a SIM card in the CTS-FP for CTS subscription management

7.0.0

7.1.0

CTS

s28

Updated for PE

7.1.0

7.1.1

s29

P-99-378

1-99-108

02.56

A006

R98

F

Clarifications of CTS description and alignment on SMG12

7.1.0

7.2.0

CTS

s29

P-99-378

1-99-106

02.56

A007

1

R98

B

CTS usage with licence exempt frequencies

7.1.0

7.2.0

CTS

s29

P-99-378

1-99-107

02.56

A008

1

R98

B

Definition of CTS-FP connected to a GSM PLMN

7.1.0

7.2.0

CTS

s29

02.56

Specification upgrade to Release 1997 version 8.0.0

7.2.0

8.0.0

s29

02.56

Update to Version 8.0.1 for Publication

8.0.0

8.0.1

SP-11

SP-010065

S1-010258

42.056

Rel-4

Transferred to 3GPP Release 4

8.0.1

4.0.0

SP-16

SP-020267

S1-021043

42.056

Rel-5

Updated from Rel-4 to Rel5

4.0.0

5.0.0

SP-26

SP-040744

S1-040997

42.056

Rel-6

Updated from Rel-5 to Rel-6

5.0.0

6.0.0

SP-36

42.056

Rel-7

Updated from Rel-6 to Rel-7

6.0.0

7.0.0

SP-42

Rel-8

Updated from Rel-7 to Rel-8

7.0.0

8.0.0

SP-46

Updated to Rel-9 by MCC

8.0.0

9.0.0

2011-03

Update to Rel-10 version (MCC)

9.0.0

10.0.0

2012-09

Updated to Rel-11 by MCC

10.0.0

11.0.0

2014-10

Updated to Rel-12 by MCC

11.0.0

12.0.0

2015-12

Updated to Rel-13 by MCC

12.0.0

13.0.0

2017-03

Updated to Rel-14 by MCC

13.0.0

14.0.0

2018-06

Updated to Rel-15 by MCC

14.0.0

15.0.0

SA#88e

Updated to Rel-16 by MCC

15.0.0

16.0.0