WO1998034427A1 - A wireless terminal - Google Patents

A wireless terminal Download PDF

Info

Publication number
WO1998034427A1
WO1998034427A1 PCT/SE1998/000113 SE9800113W WO9834427A1 WO 1998034427 A1 WO1998034427 A1 WO 1998034427A1 SE 9800113 W SE9800113 W SE 9800113W WO 9834427 A1 WO9834427 A1 WO 9834427A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
signal format
processing circuits
user interface
processing circuit
Prior art date
Application number
PCT/SE1998/000113
Other languages
French (fr)
Inventor
Michael Kornby
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to BR9806809-1A priority Critical patent/BR9806809A/en
Priority to EP98902333A priority patent/EP0956721B1/en
Priority to PL98334489A priority patent/PL186816B1/en
Priority to EEP199900285A priority patent/EE03468B1/en
Priority to JP53278498A priority patent/JP2001509351A/en
Priority to DE69839420T priority patent/DE69839420T2/en
Priority to AU58888/98A priority patent/AU731515B2/en
Publication of WO1998034427A1 publication Critical patent/WO1998034427A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the invention relates to a wireless terminal, e.g. a mobile phone, which is able to operate in accordance with at least two different air interface protocols.
  • a wireless terminal which is adapted to operate both as a GSM terminal and as a DECT terminal is known e.g. from DE 43 44 702 Al.
  • the known terminal comprises an antenna which is connected to one RF part for GSM operation and to another RF part for DECT operation.
  • the RF parts are via GSM mode components and DECT mode components, respectively, connected to a common mode controller.
  • the common mode controller is connected to user panel with a display and a keyboard and via a common speech processor to a loudspeaker and a microphone.
  • the object of the invention is to bring about a wireless terminal which is able to operate according to more than one air interface protocol and whose design is simpler than such known wireless terminals.
  • the wireless terminal in that all processing circuits are interconnected by means of a bus and that one of the processing circuits is adapted to communicate with the user interface equipment on behalf of all other processing circuits. Communication with the user interface equipment takes place in accordance with a signal format which differs from the signal format according to which the communication between the processing circuits takes place via the bus. To accomplish this, the processing circuit communicating with the user interface equipment converts the user interface equipment signal format to the bus signal format and vice versa when the terminal is operating in accordance with the protocol of one of the other processing circuits.
  • the wireless terminal according to the invention exhibits less wiring and, in comparison with the above known terminal, no separate common mode controller is needed.
  • the drawing shows a block diagram of one embodiment of a wireless terminal according to the invention.
  • the terminal shown on the drawing is supposed to be able to operate in accordance with four different air interface protocols.
  • the terminal comprises four different digital processing circuits 1, 2, 3 and 4.
  • the processing circuits 1, 2, 3 and 4 are adapted to process signals received by the terminal or to be transmitted by the teirninal according to a first, second, third an ⁇ Lfourth protocol, respectively.
  • the processing circuits do not necessarily have to be separate circuits but may instead be parts or regions of a single, larger circuit, e.g. an ASIC (Application Specific Integrated Circuit).
  • ASIC Application Specific Integrated Circuit
  • the processing circuits 1, 2, 3 and 4 are connected to an antenna 5 via RF parts 6, 7 and 8.
  • the RF part 6 is supposed to handle signals according to both the first and the third protocol and is, consequently, connected to the processing circuit 1 as well as to the processing circuit 3.
  • the RF part 7 is supposed to handle signals according to the second protocol and is connected to the processing circuit 2.
  • the RF part 8 finally is supposed to handle signals according to the fourth protocol and is connected to the processing circuit 4.
  • the terminal may be provided with more than one antenna 5. Also, it may be possible to combine all the RF parts 6, 7 and 8 into one and the same RF part.
  • one of the digital processing circuits is connected to user interface equipment of the terminal.
  • the user interface equipment comprises in the embodiment shown a display 9, a keyboard 10, a microphone 1 an earphone 12, and a SIM card 13. It is however to be understood that the user interface equip- ment may comprise other devices.
  • the processing circuit 1 is connected to the user interface equipment 9-13.
  • the processing circuits 2, 3 and 4 are adapted to communicate with the user interface equipment of the terminal via the processing circuit 1 and are for that purpose interconnected with the processing circuit 1 via a bus 14.

Abstract

In a wireless terminal adapted to operate according to more than one air interface protocol, processing circuits (1-4) are provided to process signals received by the terminal or to be transmitted by the terminal according to the respective protocol. One (1) of the processing circuits (1-4) is chosen to be connected to user interface equipment (9-13) of the terminal to communicate with that equipment also on behalf of the other processing circuits (2-4) according to a user interface equipment signal format. The other processing circuits (2-4) communicate with that one processing circuit (1) via a bus (14) according to a bus signal format. Said one processing circuit (1) converts the bus signal format to the user interface equipment signal format and vice versa when the terminal is operating according to the protocol of any of said other processing circuits (2-4).

Description

A WIRELESS TERMINAL
TECHNICAL FIELD
The invention relates to a wireless terminal, e.g. a mobile phone, which is able to operate in accordance with at least two different air interface protocols.
BACKGROUND OF THE INVENTION
The proliferation of different air interface protocol standards for wireless communication places increasing requirements on wireless terminals to be able to operate according to more than one of these standards.
A wireless terminal which is adapted to operate both as a GSM terminal and as a DECT terminal is known e.g. from DE 43 44 702 Al. The known terminal comprises an antenna which is connected to one RF part for GSM operation and to another RF part for DECT operation. The RF parts are via GSM mode components and DECT mode components, respectively, connected to a common mode controller. In its turn, the common mode controller is connected to user panel with a display and a keyboard and via a common speech processor to a loudspeaker and a microphone.
SUMMARY OF THE INVENTION
The object of the invention is to bring about a wireless terminal which is able to operate according to more than one air interface protocol and whose design is simpler than such known wireless terminals.
This is attained by the wireless terminal according to the invention in that all processing circuits are interconnected by means of a bus and that one of the processing circuits is adapted to communicate with the user interface equipment on behalf of all other processing circuits. Communication with the user interface equipment takes place in accordance with a signal format which differs from the signal format according to which the communication between the processing circuits takes place via the bus. To accomplish this, the processing circuit communicating with the user interface equipment converts the user interface equipment signal format to the bus signal format and vice versa when the terminal is operating in accordance with the protocol of one of the other processing circuits.
With this design, the wireless terminal according to the invention exhibits less wiring and, in comparison with the above known terminal, no separate common mode controller is needed.
BRIEF DESCRIPTION OF THE DRAWING
The invention will be described more in detail below with reference to the appended drawing, on which the single figure is a block diagram of an embodiment of a wireless terminal according to the invention.
PREFERRED EMBODIMENTS
The drawing shows a block diagram of one embodiment of a wireless terminal according to the invention. The terminal shown on the drawing is supposed to be able to operate in accordance with four different air interface protocols. For that purpose, the terminal comprises four different digital processing circuits 1, 2, 3 and 4. The processing circuits 1, 2, 3 and 4 are adapted to process signals received by the terminal or to be transmitted by the teirninal according to a first, second, third anζLfourth protocol, respectively. It should however be understood that the processing circuits do not necessarily have to be separate circuits but may instead be parts or regions of a single, larger circuit, e.g. an ASIC (Application Specific Integrated Circuit).
In the embodiment shown, the processing circuits 1, 2, 3 and 4 are connected to an antenna 5 via RF parts 6, 7 and 8. The RF part 6 is supposed to handle signals according to both the first and the third protocol and is, consequently, connected to the processing circuit 1 as well as to the processing circuit 3. The RF part 7 is supposed to handle signals according to the second protocol and is connected to the processing circuit 2. The RF part 8 finally is supposed to handle signals according to the fourth protocol and is connected to the processing circuit 4.
If necessary, the terminal may be provided with more than one antenna 5. Also, it may be possible to combine all the RF parts 6, 7 and 8 into one and the same RF part.
In accordance with the invention, one of the digital processing circuits is connected to user interface equipment of the terminal. The user interface equipment comprises in the embodiment shown a display 9, a keyboard 10, a microphone 1 an earphone 12, and a SIM card 13. It is however to be understood that the user interface equip- ment may comprise other devices. In the embodiment shown on the drawing, it is supposed that the processing circuit 1 is connected to the user interface equipment 9-13.
Also, in accordance with the invention, the processing circuits 2, 3 and 4 are adapted to communicate with the user interface equipment of the terminal via the processing circuit 1 and are for that purpose interconnected with the processing circuit 1 via a bus 14.
The processing circuit 1 is adapted to communicate with the user interface equipment 9-13 according to a user interface equipment signal format to suit the respective requirements of the different devices of the user interface equipment. Moreover, in accordance with the invention, the processing circuit 1 is adapted to communicate with the processing circuits 2, 3 and 4 via the bus 14 according to a bus signal format. To this end, the processing circuit 1 in the embodiment shown, is adapted to convert the user interface equipment signal format to the bus signal format and vice versa when the terminal operates in accordance with the protocol of any of the processing circuits 2, 3 and 4.
If a call to the terminal shown on the drawing is established e.g. in accordance with the second protocol, incoming signals are detected by the RF part 7 and are processed to the bus signal format by the processing circuit 2. The processed signals are then communicated via the bus 14 to the first processing circuit 1 which converts the bus signal format of the signals into signals of the user interface equipment signal format. These signals are communicated to the user interface equipment in question, e.g. the earphone 12.
In the outgoing direction, speech picked up by the microphone 11 is processed by the processing circuit 1 and communicated to the processing circuit 2 via the bus 14 in accordance with the bus signal format. These signals to be transmitted by the terminal are processed by the processing circuit 2 according to the second protocol and are communicated to the RF part 7 to be transmitted by the antenna 5.
In accordance with the invention, by interconnecing the processing circuits by means of a bus and by using one of the processing circuits both for processing signals according to one of the protocols and for communicating with the user interface equipment on behalf of the other processing circuits, the terminal according to the invention comprises less wiring than the prior art terminals.

Claims

CLAIM
A wireless terminal adapted to operate according to more than one air interface protocol, comprising user interface equipment (9-13) common to the protocols, and processing circuits (1-4), each processing circuit being adapted to process signals received by the terminal or to be transmitted by the terminal according to one of the protocols, characterized in
- that one (1) of the processing circuits (1-4) is connected to said user interface equipment (9-13) and is adapted to commumcate with that equipment according to a first signal format, while the other processing circuits (2-4) are interconnected with said one processing circuit (1) via a bus (14) and are adapted to communicate with that one processing circuit (1) according to a second signal format, and
- that said one processing circuit (1) is adapted to convert said first signal format to the second signal format and vice versa when the terminal is operating according to the protocol of any of said other processing circuits (2-4).
PCT/SE1998/000113 1997-01-30 1998-01-27 A wireless terminal WO1998034427A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BR9806809-1A BR9806809A (en) 1997-01-30 1998-01-27 Wireless terminal.
EP98902333A EP0956721B1 (en) 1997-01-30 1998-01-27 A wireless terminal
PL98334489A PL186816B1 (en) 1997-01-30 1998-01-27 Cordless terminal
EEP199900285A EE03468B1 (en) 1997-01-30 1998-01-27 Wireless Terminal
JP53278498A JP2001509351A (en) 1997-01-30 1998-01-27 Wireless terminal
DE69839420T DE69839420T2 (en) 1997-01-30 1998-01-27 WIRELESS TERMINAL
AU58888/98A AU731515B2 (en) 1997-01-30 1998-01-27 A wireless terminal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700279-4 1997-01-30
SE9700279A SE512927C2 (en) 1997-01-30 1997-01-30 Wireless terminal operating according to more than one air interface protocol

Publications (1)

Publication Number Publication Date
WO1998034427A1 true WO1998034427A1 (en) 1998-08-06

Family

ID=20405572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/000113 WO1998034427A1 (en) 1997-01-30 1998-01-27 A wireless terminal

Country Status (13)

Country Link
US (1) US5930725A (en)
EP (1) EP0956721B1 (en)
JP (1) JP2001509351A (en)
KR (1) KR20000070326A (en)
CN (1) CN100370855C (en)
AU (1) AU731515B2 (en)
BR (1) BR9806809A (en)
DE (1) DE69839420T2 (en)
EE (1) EE03468B1 (en)
MY (1) MY116183A (en)
PL (1) PL186816B1 (en)
SE (1) SE512927C2 (en)
WO (1) WO1998034427A1 (en)

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US6895255B1 (en) 2000-10-20 2005-05-17 Symbol Technologies, Inc. Dual mode wireless data communications
US6882239B2 (en) 2001-05-08 2005-04-19 Formfactor, Inc. Electromagnetically coupled interconnect system
US7466157B2 (en) * 2004-02-05 2008-12-16 Formfactor, Inc. Contactless interfacing of test signals with a device under test
US7801555B2 (en) * 2005-07-22 2010-09-21 Qualcomm Incorporated User operation of a wireless device capable of communicating with multiple networks

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Also Published As

Publication number Publication date
PL334489A1 (en) 2000-02-28
SE512927C2 (en) 2000-06-05
EE03468B1 (en) 2001-06-15
EE9900285A (en) 2000-02-15
SE9700279L (en) 1998-07-31
US5930725A (en) 1999-07-27
EP0956721A1 (en) 1999-11-17
KR20000070326A (en) 2000-11-25
EP0956721B1 (en) 2008-04-30
PL186816B1 (en) 2004-02-27
CN1246257A (en) 2000-03-01
DE69839420D1 (en) 2008-06-12
AU731515B2 (en) 2001-03-29
MY116183A (en) 2003-11-28
CN100370855C (en) 2008-02-20
JP2001509351A (en) 2001-07-10
BR9806809A (en) 2000-05-09
DE69839420T2 (en) 2009-07-23
AU5888898A (en) 1998-08-25
SE9700279D0 (en) 1997-01-30

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