Implementation of mutual rate adaptations in data services between GSM and DECT

Claim 3

The method of claim 1, wherein in said base station there is also performed rate adaptation RA0 (24) conforming to the CCITT V.110 standard, required for the conversions of the transmission format between the synchronous and asynchronous transmission modes.

Claim 4

The method of claim 1, wherein in said base station there is also performed steps of: forming L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03; forming RLP frames according to the GSM standard GSM 04.22 for data transferred from said terminal to said switching centre; and unpacking the RLP frames according to the GSM standard GSM 04.22 and the L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03 for data transferred from said switching centre to said terminal.

Claim 5

The method of claim 1, wherein in said base station there is also performed for data transferred a fax adaptation according to the T.30 standard.

Claim 6

The method of claim 1, wherein when establishing a connection from said terminal to said switching centre using a service negotiation function according to the GSM standard, said base station, as a response to a "Call proceeding" message (56) sent by said switching centre and containing in the <<bearer capability>> record a value set by said switching centre representing the negotiable connection parameter, maps the value in question into a certain record in the CC-CALL-PROCEEDING message (57) sent to said terminal (26).

Claim 7

The method of claim 5, wherein said certain record is at least one of an <<END-TO-END-COMPATIBILITY>> record or an <<IWU-ATTRIBUTES>> record.

Claim 8

The method of claim 5, wherein said negotiable connection parameter is comprised of a modem type.

Claim 9

The method of claim 1, wherein when establishing a connection from said switching centre to said terminal using a service negotiation function according to the GSM standard, the method further comprises steps of: said terminal, as a response to a CC-SETUP message (65) sent by said base station, adds negotiable connection parameters to a certain record in a CC-CONNECT message (67) which it has sent to said base station 20, and said base station, as a response to said CC-CONNECT message (67), maps said negotiable connection parameters into a <<bearer capability>> record in a "Call Confirmed" message (68) sent to said switching centre.

Claim 10

The method of claim 8, wherein said certain record is at least one of a <<IWU-ATTRIBUTES>> or an <<END-TO-END-COMPATIBILITY>> record.

Claim 11

The method of claim 7, wherein said negotiable connection parameter is comprised of at least one of: a number of data, stop and parity bits, use of a user layer 2 protocol, and modem type.

Claim 12

A method as in claim 1, wherein the at least two separate parallel operating protocol entities of the DECT system are BPAD and Ctrl.

Claim 13

Equipment, including a base station (20), for using data services of a first telecommunication system from a terminal (26) of a second telecommunication system, said base station comprising means for performing rate adaptations and mappings required for the conversions of data between the format of said first telecommunication system and the format of said second telecommunication system, wherein the first telecommunication system is a GSM system and the second telecommunication system is a DECT system, and wherein said base station comprises means for performing rate adaptations and mappings includes a step of performing rate adaptations RA2 and RA1 conforming to a CCITT V.110 standard, as well as a mapping between the RA1 rate adaptation and at least two separate parallel operating protocol entities of the DECT system, for converting a transmission rate between a transmission rate used between a GSM switching centre and said base station and a lower synchronous transmission rate.

Claim 14

Equipment, including a base station (20), for using data services of a first telecommunication system from a terminal (26) of a second telecommunication system, said base station comprising means for performing rate adaptations and mappings required for the conversions of data between the format of said first telecommunication system and the format of said second telecommunication system, wherein the first telecommunication system is a GSM system and the second telecommunication system is a DECT system, and wherein said base station comprises means for performing rate adaptations and mappings includes a step of performing rate adaptations RA2 and RA1 conforming to a CCITT V.110 standard, as well as a mapping between the RA1 rate adaptation and at least two separate parallel operating protocol entities of the DECT system, for converting a transmission rate between a transmission rate used between a GSM switching centre and said base station and a lower synchronous transmission rate.

Claim 15

The equipment of claim 12, wherein said base station (20) further comprises: means for performing rate adaptation RA0 (24) according to the CCITT V.110 standard, required for the conversions of the transmission format between the synchronous and asynchronous transmission modes.

Claim 16

The equipment of claim 12, wherein said base station (20) further comprises: means for forming L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03; means for performing RLP framing according to the GSM standard GSM 04.22 for data transferred from said terminal to said switching centre; and means for unpacking RLP frames according to the GSM standard GSM 04.22 and the L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03 for data transferred from said switching centre to said terminal.

Claim 17

The equipment of claim 12, wherein the at least two separate parallel operating protocol entities of the DECT system are BPAD and Ctrl.

Claim 18

A Digital European Cordless Telecommunications (DECT) fixed part for coupling to a DECT portable part, said DECT fixed part comprising an interworking unit (IWU) that comprises: means for performing data rate adaptations RA2 and RA1 conforming to a CCITT V.110 standard, as well as a mapping between the RA1 rate adaptation and at least two separate parallel operating protocol entities of the DECT system, for converting a transmission rate between a transmission rate used between a Global System for Mobile Communications (GSM) switching center and said DECT fixed part and a lower synchronous transmission rate; means for performing rate adaptation RA0 (24) according to the CCITT V.110 standard for converting a transmission format between a synchronous transmission mode and an asynchronous transmission mode; means for forming L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03; means for forming Radio Link Protocol (RLP) frames according to the GSM standard GSM 04.22 for data transferred from said DECT portable part to said GSM switching center; and means for unpacking RLP frames according to the GSM standard GSM 04.22 and the L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03 for data transferred from said GSM switching center to said DECT portable part.

Claim 19

A Digital European Cordless Telecommunications (DECT) fixed part for coupling to a DECT portable part, said DECT fixed part comprising an interworking unit (IWU) that comprises: means for performing data rate adaptations RA2 and RA1 conforming to a CCITT V.110 standard, as well as a mapping between the RA1 rate adaptation and at least two separate parallel operating protocol entities of the DECT system, for converting a transmission rate between a transmission rate used between a Global System for Mobile Communications (GSM) switching center and said DECT fixed part and a lower synchronous transmission rate; means for performing rate adaptation RA0 (24) according to the CCITT V.110 standard for converting a transmission format between a synchronous transmission mode and an asynchronous transmission mode; means for forming L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03; means for forming Radio Link Protocol (RLP) frames according to the GSM standard GSM 04.22 for data transferred from said DECT portable part to said GSM switching center; and means for unpacking RLP frames according to the GSM standard GSM 04.22 and the L2COP protocol units according to the GSM standard GSM 07.02 or L2BOP protocol units according to the GSM standard GSM 07.03 for data transferred from said GSM switching center to said DECT portable part.

Claim 20

The DECT fixed part of claim 16, wherein the at least two separate parallel operating protocol entities of the DECT system are BPAD and Ctrl.

Claim 23

The method of claim 18, wherein in the base station there is also executed a step of performing rate adaptation RA0 conforming to the CCITT V.110 standard, required for the conversion of a transmission format between synchronous and asynchronous transmission modes.

Claim 24

A method as in claim 18, wherein the plurality of separate parallel operating protocol entities are BPAD and Ctrl of a Digital European Cordless Telecommunications (DECT) system.

Claim 25

A base station, comprising: means for using data services of a first telecommunication system from a terminal of a second telecommunication system by means of said base station in cooperation with a switching center coupled to said base station; said using means comprising means for converting data between a format of the first telecommunication system and a format of the second telecommunication system by performing rate adaptations and mappings required for converting the data, including rate adaptations RA2 and RA1 conforming to a CCITT V.110 standard for a conversion of transmission rate between a transmission rate used between the switching center and the base station and a lower synchronous transmission rate, wherein the mappings comprise a mapping between a predetermined one of the rate adaptations and a plurality of separate parallel operating protocol entities.

Claim 26

A base station, comprising: means for using data services of a first telecommunication system from a terminal of a second telecommunication system by means of said base station in cooperation with a switching center coupled to said base station; said using means comprising means for converting data between a format of the first telecommunication system and a format of the second telecommunication system by performing rate adaptations and mappings required for converting the data, including rate adaptations RA2 and RA1 conforming to a CCITT V.110 standard for a conversion of transmission rate between a transmission rate used between the switching center and the base station and a lower synchronous transmission rate, wherein the mappings comprise a mapping between a predetermined one of the rate adaptations and a plurality of separate parallel operating protocol entities.

Claim 27

The base station of claim 21, wherein said using means further comprises means for performing rate adaptation RA0 conforming to the CCITT V.110 standard, required for the conversion of a transmission format between synchronous and asynchronous transmission modes.

Claim 28

A base station as in claim 21, wherein the predetermined one of the rate adaptations is the RA1 rate adaptation, and wherein the plurality of separate parallel operating protocol entities are BPAD and Ctrl of a Digital European Cordless Telecommunications (DECT) system.