Adaptation layer for realizing protocol adaptations in a digital wireless data transmission system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-007/216
H04J-003/16
H04J-003/22
H04M-001/00
출원번호
US-0291465
(1999-04-14)
우선권정보
FI-19980837 (1998-04-15)
발명자
/ 주소
Vialen, Jukka
Oikarinen, Esko
Pietarila, Janne
Korpela, Mikko
출원인 / 주소
Nokia Mobile Phones Limited
대리인 / 주소
Perman & Green, LLP
인용정보
피인용 횟수 :
89인용 특허 :
17
초록▼
In order to perform data transmission between a mobile station and a cellular radio network, the cellular radio network comprises a radio access network (104, 105, 106) for processing messages according to a first protocol, and a core network (101, 102, 103) for processing messages according to a se
In order to perform data transmission between a mobile station and a cellular radio network, the cellular radio network comprises a radio access network (104, 105, 106) for processing messages according to a first protocol, and a core network (101, 102, 103) for processing messages according to a second protocol. The mobile station deals with messages according to the first protocol on given lower protocol layers and messages according to the second protocol on a given higher protocol layer. On an adaptation layer (301) located between the higher protocol layer and the lower protocol layers, there is performed an adaptation where the messages according to the first and second protocol are mapped into each other.
대표청구항▼
In order to perform data transmission between a mobile station and a cellular radio network, the cellular radio network comprises a radio access network (104, 105, 106) for processing messages according to a first protocol, and a core network (101, 102, 103) for processing messages according to a se
In order to perform data transmission between a mobile station and a cellular radio network, the cellular radio network comprises a radio access network (104, 105, 106) for processing messages according to a first protocol, and a core network (101, 102, 103) for processing messages according to a second protocol. The mobile station deals with messages according to the first protocol on given lower protocol layers and messages according to the second protocol on a given higher protocol layer. On an adaptation layer (301) located between the higher protocol layer and the lower protocol layers, there is performed an adaptation where the messages according to the first and second protocol are mapped into each other. ptation layer (301) between said higher protocol layer and said lower protocol layers, wherein said messages according to the first and second protocols are mapped into each other; and wherein said adaptation layer is arranged to emulate the operation of a certain previously defined set of lower protocol layers towards a certain previously defined higher protocol layer and to emulate the operation of a certain previously defined higher protocol layer towards a certain previously defined set of lower protocol layers. 2. A method according to claim 1, wherein the first protocol is a data transmission protocol of a third-generation digital cellular radio system, and the second protocol is a data transmission protocol of a second-generation digital cellular radio system. 3. A method according to claim 2, wherein the first protocol comprises, in between the mobile station and the radio access network base station subsystem, an L1 layer (200), which corresponds to a physical radio connection, and above it an RLC/MAC layer (202), an LLC layer (204) and an RRC layer (206), corresponding to the layers 2 and 3 of the OSI model, and that the second protocol is a data transmission protocol of the GSM system, comprising a GSM MM layer (302). 4. A method according to claim 2, wherein the first protocol comprises in between the mobile station and the radio access network base station subsystem, an L1 layer (200), which corresponds to a physical radio connection, and above it an RLC/MAC layer (202), an LLC layer (204) and an RRC layer (206), corresponding to the layers 2 and 3 of the OSI model, and that the second protocol is a data transmission protocol of the GPRS system, comprising a GPRS MM layer (303). 5. A method according to claim 1, wherein the first protocol is a data transmission protocol of a third-generation digital cellular radio system, and the second protocol is a data transmission protocol of a core network of a third-generation digital cellular radio system. 6. A method according to claim 1, additionally comprising the step of offering at said adaptation layer (301) to the protocol layers located above it at least two parallel service access points (306, 307, 308) in order to adapt at least two mutually optional second protocols with the first protocol. 7. A cellular radio system mobile station, comprising means for implementing data transmission with a radio access network according to a given protocol stack, and in said protocol stack, a certain set of lower protocol layers according to a given first protocol and a higher protocol layer according to a given second protocol, and in between these, an adaptation layer for carrying out such a two-way adaptation where the messages according to the first and second protocols are mapped into each other, wherein said adaptation layer is arranged to emulate the operation of a certain previously defined set of lower protocol layers towards a certain previously defined higher protocol layer and to emulate the operation of a certain previously defined higher protocol layer towards a certain previously defined set of lower protocol layers. 8. A mobile station according to claim 7, comprising a certain first higher protocol layer and as a parallel alternative to it a second higher protocol layer, wherein said adaptation layer is arranged to identify from which higher protocol layer a given message has been received. 9. A mobile station according to claim 8, wherein said first higher protocol layer is a GSM MM layer and said second higher protocol layer is a GPRS MM layer.
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