WO1993021719A1 - Method of structuring a b-field format in a dect-standard system - Google Patents
Method of structuring a b-field format in a dect-standard system Download PDFInfo
- Publication number
- WO1993021719A1 WO1993021719A1 PCT/DE1993/000280 DE9300280W WO9321719A1 WO 1993021719 A1 WO1993021719 A1 WO 1993021719A1 DE 9300280 W DE9300280 W DE 9300280W WO 9321719 A1 WO9321719 A1 WO 9321719A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- dect
- field
- standard
- isdn
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
- H04Q11/0457—Connection protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/08—Details of telephonic subscriber devices home cordless telephone systems using the DECT standard
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13098—Mobile subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13298—Local loop systems, access network
Definitions
- the invention relates to a method for structuring a B-field format in the DECT standard according to the preamble of claim 1.
- DECT Digital European Cordless Telecommunication
- DTR-RES 3001 DECT Reference Document Version 2.1; DTR-RES 3001
- the DECT standard includes a variety of communication services, e.g. B. in private and business.
- the DECT standard is designed for low-performance cordless communication transmissions between mobile devices (portables) and the surrounding infrastructure for ranges of a few 100 meters. For this cordless communication transmission, a dynamic channel selection of approximately 120 available channels is carried out in accordance with the DECT standard.
- TDMA Time Devision
- 24 from 0 to 23
- time channels are defined in this time-division multiplex frame, thereby specifying a frame scheme.
- This framework will then be like this uses that for each frequency band twelve stations of a DECT system work simultaneously in duplex mode.
- a time slot of approx. 417 ⁇ s is assigned to the 24 time channels. This time slot indicates the time in which information (data) is actually transmitted.
- This transmission of the information in duplex mode is also referred to as a ping-pong method because transmission takes place at a certain point in time and reception at another point in time.
- a time frame or pulse (burst) of approx. 365 ⁇ s, which corresponds to a frame length of 420 bits, is transmitted in each time slot.
- the chronological sequence of the transmitted pulses defines a channel (the so-called physical channel) with a data throughput of 42 kbit / s or 420 bit / 10 ms.
- the time frame is also referred to as a D field, which is shown in FIG. 2 and is assigned to a physical layer of the DECT system, the so-called physical layer (PHL).
- the ISO 7-layer model defines several layers.
- One of these layers is the physical layer (PHL).
- Another layer is a Medium Access Control Layer (MACL), to which an A field and B field are assigned according to FIG.
- the A field includes z. B. 64 bits, while the B field z. B. is 324 bits long.
- the DECT standard was standardized at a time when other communication technology standards, such as B. the ISDN standard were in development and thus in practical implementation. With the creation of the ISDN standard, a key goal was to apply this standard, once it was created, to standards still to be created as comprehensively as possible.
- a DECT system also functions as an intermediate system in must take over with regard to ISDN systems.
- a DECT system z. B. a mobile radio system and as an ISDN system such. B. serve a private switching system.
- the DECT system consisting of an air interface (Common Air Interface), is operated via the respective DECT unit, which, for. B. includes a bound DECT subunit (DECT Fixed System) and a mobile DECT subunit (DECT Portable Terminal), coupled to the ISDN system.
- This coupling (link) is shown in principle in FIG. 4.
- the connection between the DECT units within the DECT system is realized via a user channel (I channel) and a signaling channel (C channel).
- I channel user channel
- C channel signaling channel
- the signaling or C channel is divided into a slow C channel (C channel with "s for slow") and a fast C channel (C f channel with "f for fast”) .
- the DECT unit has the task of converting protocols, formats and encodings that are used in the DECT system into corresponding protocols, formats and encodings that are used in the ISDN system.
- the DECT unit has, inter alia, a cooperation unit (Interworki ⁇ g Unit), which decisively determines the flexibility of the DECT system.
- the DECT unit is connected to a network (network) and a terminal (ISDN terminal) of the ISDN system, as specified in the ISDN standard, via two user channels (B channel), each with a transmission rate of 64 kbit / s and a signaling channel (D channel) with a transmission rate of 16 kbit / s.
- B channel user channels
- D channel signaling channel
- These three channels in the ISDN system are used in parallel and, in contrast to the DECT system, are completely transparent at the same time.
- information to be transmitted is transmitted in the ISDN system on the bit level mli: t using the time division multiplex method.
- the C channel, C f channel and I channel which in addition to a further P channel and Q channel are also logic channels are multiplexed onto the physical channels (physical channels) in the MAC layer (medium access control).
- the physical channels physical channels
- the MAC layer medium access control
- 48 bits of the A field according to FIGS. 5 and 3 are available in addition to the P channel and Q channel, in particular the C channel.
- CRC Cycle Redundancy Check
- the format of the B field shown in FIG. 5 is referred to as the "fill slot format", in which the format of the B field, unlike the A field, is unprotected. Should the format of the B field also be protected, i.e. H. a cyclical redundancy or validity check is also carried out for the B field. leads to a format for the B field according to FIG. 6, according to which the B field is divided into sub-areas B0 ... B3 with a 64-bit data block and 16-bit CRC block.
- a first approach to solving this problem is to increase the "fill slot format" of the B field in a known manner and thereby at least once to adapt the transmission rate of 32 kbit / s on the I-channel or C - channel to the transmission rate of 64 kbit / s on the B-channel of the ISDN system.
- the B field has been enlarged in accordance with FIG. 7 to an extent which allows a capacity of 80 kbit / s to be transmitted within the B field of the DECT system.
- the useful data and signaling data are transmitted one after the other. So z. B.
- user data transmitted on the B channel of the ISDN system are transmitted on the I channel of the DECT system and then signaling data transmitted on the D channel of the ISDN system are transmitted on the C ⁇ channel.
- the object of the invention is to provide a method for structuring a B-field format in the DECT standard so that the outband signaling (outband signaling) implemented in the ISDN standard is supported.
- FIG. 8 shows, in order to implement the outband signaling in the DECT system, a B field modified in comparison to the B field according to FIG. 7 in the "double slot format" with a first B subfield B ⁇ and a second B subfield B s2 .
- the B subfield B- comprises 160 bits, 128 bits of which are available to the C ⁇ channel. The remaining 32 bits can in turn be used for cyclic redundancy or validity checking, as in the division in the A field.
- the B-subfield B- 2 comprises 640 bits that are completely available to the I-channel.
- the information transmitted on the D channel and B channel of the ISDN system can be transmitted simultaneously on the C ⁇ channel and I channel of the DECT system become.
- the outband signaling (outband signaling) implemented in the ISDN system is also completely suppressed by the DECT system.
- the B field can also be protected by a cyclical redundancy or validity check (protected format). In return, this also reduces the transmission rate of the information that can actually be used.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93906447A EP0635185A1 (en) | 1992-04-09 | 1993-03-25 | Method of structuring a b-field format in a dect-standard system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4212010 | 1992-04-09 | ||
DEP4212010.1 | 1992-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993021719A1 true WO1993021719A1 (en) | 1993-10-28 |
Family
ID=6456507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/000280 WO1993021719A1 (en) | 1992-04-09 | 1993-03-25 | Method of structuring a b-field format in a dect-standard system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0635185A1 (en) |
AU (1) | AU3743993A (en) |
WO (1) | WO1993021719A1 (en) |
Cited By (40)
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WO1996007278A2 (en) * | 1994-08-19 | 1996-03-07 | Telia Ab | Device for sending short messages in telecommunication systems |
FR2728123A1 (en) * | 1994-12-12 | 1996-06-14 | Nokia Mobile Phones Ltd | DATA TRANSMISSION METHOD |
WO1997038546A1 (en) * | 1996-04-04 | 1997-10-16 | Siemens Aktiengesellschaft | Control of the change of telecommunications channels in a dect-specific rll/wll partial system bound to an isdn-system |
WO1997038545A1 (en) * | 1996-04-04 | 1997-10-16 | Siemens Aktiengesellschaft | Assigning channels of different capacities in a hybrid isdn-dect telecommunications system |
DE19640450C1 (en) * | 1996-09-30 | 1997-10-30 | Siemens Ag | Base station with fast channel switching for TDMA/FDMA radio communications system |
DE19620198A1 (en) * | 1996-05-20 | 1997-11-27 | Siemens Ag | Method for coupling telecommunication terminals to a hybrid telecommunication system, in particular an RNT-specific telecommunication system |
WO1997050273A1 (en) * | 1996-06-24 | 1997-12-31 | Siemens Aktiengesellschaft | Process for controlling the establishment and operation of paths of transmission (bearers) in a wireless telecommunication system, in particular in a dect-specific rll/wll-system bound into an isdn-system as a local information transmission loop |
WO1998005130A2 (en) * | 1996-07-26 | 1998-02-05 | Italtel S.P.A. | Method and system to supply data to the users of a dect system |
DE19632261A1 (en) * | 1996-08-09 | 1998-02-19 | Siemens Ag | Method for establishing telecommunication connections between telecommunication devices in wireless telecommunication systems, in particular between DECT devices of a DECT system |
DE19636744A1 (en) * | 1996-09-10 | 1998-03-12 | Siemens Ag | Method for transmitting data in a hybrid telecommunication system, in particular an "ISDN - DECT-specific RLL / WLL" system |
DE19638173A1 (en) * | 1996-09-11 | 1998-03-19 | Siemens Ag | Method for controlling the making of emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
DE19638111A1 (en) * | 1996-09-11 | 1998-03-19 | Siemens Ag | Method for controlling the making of emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
WO1998010633A2 (en) * | 1996-09-10 | 1998-03-19 | Siemens Aktiengesellschaft | Method for controlling the setup of telecommunication links with transmission channel requirements of different network terminations |
DE19643658C1 (en) * | 1996-10-22 | 1998-03-26 | Siemens Ag | Cordless mobile communications device calling method |
WO1998014028A1 (en) * | 1996-09-26 | 1998-04-02 | Siemens Aktiengesellschaft | Mobile communication terminal with telephone function and an isdn base connection |
DE19638112A1 (en) * | 1996-09-11 | 1998-04-23 | Siemens Ag | Method for controlling emergency call connections in cordless telecommunication systems, in particular DECT / GAP systems |
DE19643645A1 (en) * | 1996-10-22 | 1998-04-30 | Siemens Ag | Method for transmitting call-independent services to cordless mobile parts of universal mobile telecommunication systems, in particular to DECT mobile parts of CAP-specific telecommunication systems |
WO1998018277A2 (en) * | 1996-10-23 | 1998-04-30 | Siemens Aktiengesellschaft | Method and telecommunication interface for the transmission of continuous and/or discontinuous data streams in a hybrid telecommunication system, especially an 'isdn <-> dect specific rll/wll' system |
WO1998018285A1 (en) * | 1996-10-23 | 1998-04-30 | Siemens Aktiengesellschaft | Method for the transmission of user data in a hybrid telecommunication system especially an 'isdn ←→ dect specific rll/wll' system |
DE19640447C1 (en) * | 1996-09-30 | 1998-05-07 | Siemens Ag | Method for realizing ISDN connections via an air interface |
DE19638170A1 (en) * | 1996-09-11 | 1998-05-14 | Siemens Ag | Method for making emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
WO1998048589A2 (en) * | 1997-04-24 | 1998-10-29 | Siemens Aktiengesellschaft | Holding a connection in an isdn network with a dect intermediate system |
DE19625142C2 (en) * | 1996-04-04 | 1998-10-29 | Siemens Ag | Method for assigning telecommunication channels of different channel capacity in a hybrid telecommunication system, in particular an "ISDN <--> DECT-specific RLL / WLL" system |
DE19747370C1 (en) * | 1997-10-27 | 1998-11-26 | Siemens Ag | Multiple access wireless mobile telecommunication system |
EP0892578A2 (en) * | 1997-07-18 | 1999-01-20 | Samsung Electronics Co., Ltd. | Cordless telephone (DECT) system capable of providing a data communication service |
EP0899982A2 (en) * | 1997-08-14 | 1999-03-03 | Dosch & Amand GmbH & Co. KG | Method, system and devices for radio connection of multiple terminals via a base station to a telephone or data network interface |
DE19820233A1 (en) * | 1998-05-06 | 1999-11-11 | Siemens Ag | Method for transmitting user data in telecommunication systems with wireless telecommunication between telecommunication devices based on a predetermined air interface protocol, in particular voice and / or packet data in DECT systems |
DE19738339C2 (en) * | 1997-09-02 | 2000-08-31 | Siemens Ag | Method for the user-controlled clearing down of wireless telecommunication connections in wireless telecommunication systems, in particular DECT systems |
DE19738340C2 (en) * | 1997-09-02 | 2001-03-15 | Siemens Ag | Roaming of mobile parts in at least partially asynchronous wireless telecommunication networks, especially DECT networks |
DE19740558C2 (en) * | 1997-09-15 | 2003-01-09 | Siemens Ag | Method for transmitting "MWI service" -specific messages in telecommunication networks, in particular in hybrid DECT / ISDN-specific telecommunication networks |
US6781975B1 (en) | 1997-07-15 | 2004-08-24 | Siemens Aktiengesellschaft | Wireless telecommunications system with a CDMA, FDMA and TDMA multiple access component, especially a “JD-CDMA” telecommunications system with hybrid multiple access techniques |
US6795427B1 (en) | 1997-10-27 | 2004-09-21 | Siemens Aktiengesellschaft | Estimation of transmission channels in communication systems for wireless telecommunication |
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EP1983692A1 (en) | 1997-06-20 | 2008-10-22 | Tantivy Communications, Inc. | Protocol conversion and bandwith reduction technique providing multiple nB+D ISDN basic rate interface links over a wireless code division multiple access communication system |
US8908654B2 (en) | 1998-06-01 | 2014-12-09 | Intel Corporation | Dynamic bandwidth allocation for multiple access communications using buffer urgency factor |
US9042400B2 (en) | 1997-12-17 | 2015-05-26 | Intel Corporation | Multi-detection of heartbeat to reduce error probability |
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US9408216B2 (en) | 1997-06-20 | 2016-08-02 | Intel Corporation | Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0383437A2 (en) * | 1989-02-14 | 1990-08-22 | Data General Corporation | Format converter |
EP0415502A2 (en) * | 1989-09-01 | 1991-03-06 | Philips Electronics Uk Limited | Communications system |
WO1991010333A1 (en) * | 1989-12-22 | 1991-07-11 | SIEMENS AKTIENGESELLSCHAFT öSTERREICH | Radio communication system based on digital localisation points |
WO1991018483A1 (en) * | 1990-05-12 | 1991-11-28 | Motorola, Inc. | Data network interface |
-
1993
- 1993-03-25 EP EP93906447A patent/EP0635185A1/en not_active Ceased
- 1993-03-25 AU AU37439/93A patent/AU3743993A/en not_active Abandoned
- 1993-03-25 WO PCT/DE1993/000280 patent/WO1993021719A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0383437A2 (en) * | 1989-02-14 | 1990-08-22 | Data General Corporation | Format converter |
EP0415502A2 (en) * | 1989-09-01 | 1991-03-06 | Philips Electronics Uk Limited | Communications system |
WO1991010333A1 (en) * | 1989-12-22 | 1991-07-11 | SIEMENS AKTIENGESELLSCHAFT öSTERREICH | Radio communication system based on digital localisation points |
WO1991018483A1 (en) * | 1990-05-12 | 1991-11-28 | Motorola, Inc. | Data network interface |
Non-Patent Citations (3)
Title |
---|
39 TH IEEE VEHICULAR TECHNOLOGY CONFERENCE Bd. 2, Mai 1989, SAN FRANCISCO Seiten 729 - 734 SUZUKI ET AL 'SIGNALLING PROTOCOL ARCHITECTURE FOR DIGITAL MOBILE SYSTEM' * |
IEEE COMMUNICATIONS MAGAZINE Bd. 25, Nr. 6, Juni 1987, NEW YORK Seiten 22 - 30 CHIEN ET AL 'CELLULAR ACCESS DIGITAL NETWORK (CADN) : WIRELESS ACCESS TO NETWORKS OF THE FUTURE' * |
INFORMATIK SPEKTRUM Bd. 14, Nr. 3, Juni 1991, BERLIN Seiten 137 - 152 MANN 'DER GSM STANDARD' * |
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WO1996007278A3 (en) * | 1994-08-19 | 1996-05-30 | Telia Ab | Device for sending short messages in telecommunication systems |
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DE19638173C2 (en) * | 1996-09-11 | 2002-10-17 | Siemens Ag | Method for controlling the making of emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
DE19638170C2 (en) * | 1996-09-11 | 1998-09-03 | Siemens Ag | Method for making emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
DE19638112A1 (en) * | 1996-09-11 | 1998-04-23 | Siemens Ag | Method for controlling emergency call connections in cordless telecommunication systems, in particular DECT / GAP systems |
DE19638112C2 (en) * | 1996-09-11 | 1998-09-10 | Siemens Ag | Method for controlling emergency call connections in cordless telecommunication systems, in particular DECT / GAP systems |
DE19638111C2 (en) * | 1996-09-11 | 1998-11-26 | Siemens Ag | Method for controlling the making of emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
DE19638173A1 (en) * | 1996-09-11 | 1998-03-19 | Siemens Ag | Method for controlling the making of emergency calls in cordless telecommunication systems, in particular DECT / GAP systems |
WO1998014028A1 (en) * | 1996-09-26 | 1998-04-02 | Siemens Aktiengesellschaft | Mobile communication terminal with telephone function and an isdn base connection |
DE19640447C1 (en) * | 1996-09-30 | 1998-05-07 | Siemens Ag | Method for realizing ISDN connections via an air interface |
US6388996B1 (en) | 1996-09-30 | 2002-05-14 | Rolf Biedermann | Base station with rapid handover function of a cellular TDMA/FDMA mobile radio system, particularly of a cellular DECT system |
DE19640450C1 (en) * | 1996-09-30 | 1997-10-30 | Siemens Ag | Base station with fast channel switching for TDMA/FDMA radio communications system |
DE19643645C2 (en) * | 1996-10-22 | 1998-12-10 | Siemens Ag | Method for transmitting "message waiting indication" services to cordless handsets of universal mobile telecommunication systems, in particular to DECT handsets of CAP-specific telecommunication systems |
DE19643658C1 (en) * | 1996-10-22 | 1998-03-26 | Siemens Ag | Cordless mobile communications device calling method |
DE19643645A1 (en) * | 1996-10-22 | 1998-04-30 | Siemens Ag | Method for transmitting call-independent services to cordless mobile parts of universal mobile telecommunication systems, in particular to DECT mobile parts of CAP-specific telecommunication systems |
US6539224B2 (en) | 1996-10-22 | 2003-03-25 | Siemens Aktiengesellschaft | Method for controlling the logon of cordless mobile parts at cordless base stations of universal mobile telecommunication systems, particularly of dect mobile parts at dect base stations of cap-specific telecommunication systems |
WO1998018285A1 (en) * | 1996-10-23 | 1998-04-30 | Siemens Aktiengesellschaft | Method for the transmission of user data in a hybrid telecommunication system especially an 'isdn ←→ dect specific rll/wll' system |
DE19643776C1 (en) * | 1996-10-23 | 1998-08-27 | Siemens Ag | Method for transmitting user data in a hybrid telecommunications system, in particular an "ISDN DECT-specific RLL / WLL" system |
WO1998018277A2 (en) * | 1996-10-23 | 1998-04-30 | Siemens Aktiengesellschaft | Method and telecommunication interface for the transmission of continuous and/or discontinuous data streams in a hybrid telecommunication system, especially an 'isdn <-> dect specific rll/wll' system |
WO1998018277A3 (en) * | 1996-10-23 | 1998-08-13 | Siemens Ag | Method and telecommunication interface for the transmission of continuous and/or discontinuous data streams in a hybrid telecommunication system, especially an 'isdn <-> dect specific rll/wll' system |
WO1998048589A3 (en) * | 1997-04-24 | 1999-03-11 | Siemens Ag | Holding a connection in an isdn network with a dect intermediate system |
WO1998048589A2 (en) * | 1997-04-24 | 1998-10-29 | Siemens Aktiengesellschaft | Holding a connection in an isdn network with a dect intermediate system |
US6567412B1 (en) | 1997-04-24 | 2003-05-20 | Siemens Aktiengesellschaft | Holding a connection in an ISDN network with a DECT intermediate system |
USRE45367E1 (en) | 1997-06-20 | 2015-02-10 | Intel Corporation | Protocol conversion and bandwidth reduction technique providing multiple NB+D ISDN basic rate interface links over a wireless code division multiple access communication system |
US9408216B2 (en) | 1997-06-20 | 2016-08-02 | Intel Corporation | Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link |
EP1983692A1 (en) | 1997-06-20 | 2008-10-22 | Tantivy Communications, Inc. | Protocol conversion and bandwith reduction technique providing multiple nB+D ISDN basic rate interface links over a wireless code division multiple access communication system |
US6781975B1 (en) | 1997-07-15 | 2004-08-24 | Siemens Aktiengesellschaft | Wireless telecommunications system with a CDMA, FDMA and TDMA multiple access component, especially a “JD-CDMA” telecommunications system with hybrid multiple access techniques |
EP0892578A2 (en) * | 1997-07-18 | 1999-01-20 | Samsung Electronics Co., Ltd. | Cordless telephone (DECT) system capable of providing a data communication service |
EP0892578A3 (en) * | 1997-07-18 | 1999-12-22 | Samsung Electronics Co., Ltd. | Cordless telephone (DECT) system capable of providing a data communication service |
EP0899982A2 (en) * | 1997-08-14 | 1999-03-03 | Dosch & Amand GmbH & Co. KG | Method, system and devices for radio connection of multiple terminals via a base station to a telephone or data network interface |
EP0899982A3 (en) * | 1997-08-14 | 2005-10-12 | Dosch & Amand GmbH & Co. KG | Method, system and devices for radio connection of multiple terminals via a base station to a telephone or data network interface |
DE19738340C2 (en) * | 1997-09-02 | 2001-03-15 | Siemens Ag | Roaming of mobile parts in at least partially asynchronous wireless telecommunication networks, especially DECT networks |
DE19738339C2 (en) * | 1997-09-02 | 2000-08-31 | Siemens Ag | Method for the user-controlled clearing down of wireless telecommunication connections in wireless telecommunication systems, in particular DECT systems |
US6643505B1 (en) | 1997-09-15 | 2003-11-04 | Siemens Aktiengesellschaft | Method for operating a telecommunications network with a personalized database |
DE19740558C2 (en) * | 1997-09-15 | 2003-01-09 | Siemens Ag | Method for transmitting "MWI service" -specific messages in telecommunication networks, in particular in hybrid DECT / ISDN-specific telecommunication networks |
US6795427B1 (en) | 1997-10-27 | 2004-09-21 | Siemens Aktiengesellschaft | Estimation of transmission channels in communication systems for wireless telecommunication |
DE19747370C1 (en) * | 1997-10-27 | 1998-11-26 | Siemens Ag | Multiple access wireless mobile telecommunication system |
US6741583B1 (en) | 1997-10-27 | 2004-05-25 | Siemens Aktiengesellschaft | Telecommunication system for wireless telecommunication with a CDMA, FDMA, and TDMA multiple access component |
US9525923B2 (en) | 1997-12-17 | 2016-12-20 | Intel Corporation | Multi-detection of heartbeat to reduce error probability |
US9042400B2 (en) | 1997-12-17 | 2015-05-26 | Intel Corporation | Multi-detection of heartbeat to reduce error probability |
DE19820233A1 (en) * | 1998-05-06 | 1999-11-11 | Siemens Ag | Method for transmitting user data in telecommunication systems with wireless telecommunication between telecommunication devices based on a predetermined air interface protocol, in particular voice and / or packet data in DECT systems |
US6963751B1 (en) | 1998-05-06 | 2005-11-08 | Siemens Aktiengesellschaft | Method for transmitting service data in telecommunication systems with wireless telecommunication based on a predefined radio interface protocol between telecommunication devices, especially voice data and/or packet data in dect systems |
DE19820233B4 (en) * | 1998-05-06 | 2004-08-05 | Siemens Ag | Method for transmitting user data in telecommunication systems with wireless telecommunication based on a predetermined air interface protocol between telecommunication devices, in particular voice and / or packet data in DECT systems |
US8908654B2 (en) | 1998-06-01 | 2014-12-09 | Intel Corporation | Dynamic bandwidth allocation for multiple access communications using buffer urgency factor |
US9408253B2 (en) | 1999-09-21 | 2016-08-02 | Ipr Licensing, Inc. | Subscriber unit for managing dual wireless communication links |
US9420632B2 (en) | 1999-09-21 | 2016-08-16 | Ipr Licensing, Inc. | Subscriber unit for managing dual wireless communication links |
EP3910924A1 (en) * | 2020-05-12 | 2021-11-17 | Yealink (Xiamen) Network Technology Co., Ltd. | Dect base station, mobile terminal and system for transmitting data frame |
Also Published As
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AU3743993A (en) | 1993-11-18 |
EP0635185A1 (en) | 1995-01-25 |
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