DE3837734C2 - Digitales Funkfernsprechsystem - Google Patents
Digitales FunkfernsprechsystemInfo
- Publication number
- DE3837734C2 DE3837734C2 DE3837734A DE3837734A DE3837734C2 DE 3837734 C2 DE3837734 C2 DE 3837734C2 DE 3837734 A DE3837734 A DE 3837734A DE 3837734 A DE3837734 A DE 3837734A DE 3837734 C2 DE3837734 C2 DE 3837734C2
- Authority
- DE
- Germany
- Prior art keywords
- base station
- channel
- subscriber stations
- time slots
- subscriber
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 230000006866 deterioration Effects 0.000 claims description 8
- 230000015556 catabolic process Effects 0.000 claims description 6
- 238000006731 degradation reaction Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000013507 mapping Methods 0.000 claims 3
- 235000010678 Paulownia tomentosa Nutrition 0.000 claims 1
- 240000002834 Paulownia tomentosa Species 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 230000003252 repetitive effect Effects 0.000 claims 1
- 230000004044 response Effects 0.000 claims 1
- 238000012546 transfer Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 239000000872 buffer Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 4
- 238000005562 fading Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Verzeichnis von Akronymen | |
BCC | |
Basisbandsteuerkanal (baseband control channel) | |
BER | Bitfehlerhäufigkeit (bit error rate) |
CCT | Kanalsteuertask (channel control task) |
CCU | Kanalsteuereinheit (channel control unit) |
CO | Zentralamt (central office) |
COT | Zentralamt-Endstelle (central office terminal) |
CRC | zyklischer Redundanztest (cyclic redundancy check) |
DBM | Datenbankmodul (data base module) |
LQ | Verbindungsqualität (link quality) |
MF | Störung (malfunction) |
MPM | Nachrichtenverarbeitungsmodul (message processing module) |
MTU | Hauptzeitsteuereinheit (master timing unit) |
MUX | Multiplexer (multiplexer) |
PCM | Pulscodemodulation (pulse code modulation) |
RCC | Funksteuerkanal (radio control channel) |
HF | Hochfrequenz |
RPU | Funkverarbeitungseinheit (radio processing unit) |
RRT | entfernte Funkendstelle (remote radio terminal) |
SCT | Teilnehmersteuertask (subscriber control task) |
SDLC | synchrone Datenverbindungssteuerung (synchronous data link control) |
SM | Schedulermodul (scheduler module) |
VCU | Sprachcodeceinheit (voice codec unit) |
Claims (24)
Zuordnung ausgewählter freier Schlitze in ausgewählten Frequenz kanäle an ausgewählte Teilnehmer (42) in Übereinstimmung mit ihrer Nachbarschaft zu besetzten Schlitzen in einer Speicherma trix,
wobei die Zuordnung in Folge von Reizen durchgeführt wird, die entweder durch den Leitungseintritt von zusätzlichen Teilnehmern oder durch die Verschlechterung von Übertragungen zwischen der Basisstation (10) und den Teilnehmern (42) auftreten.
eine ein Muster von Frequenzkanälen enthaltende Matrix, wobei jeder Frequenzkanal eine Vielzahl von Schlitzen aufweist, die Zeitschlitze relativ zueinander angeordnet sind, wodurch eine Teilnehmerstation (42) auswählbar bewegbar von einem Schlitz zu einem anderen innerhalb eines ausgewählten Frequenzkanals sein kann, oder von einem Schlitz in einem Frequenzkanal zu einem anderen Schlitz in einem anderen Frequenzkanal, wobei die Matrix gleichzeitige Verbindungen zwischen einer Vielzahl der Anschlüsse und einer Vielzahl der Teilnehmerstationen (42) ermöglicht,
eine Fernsprechvermittlung zum Verbinden der Fernsprechschaltung mit den Anschlüssen des externen Funkfernsprechnetzes; und
einen Prozessor mit einer Fernleitung, der sowohl mit der Funkfernsprechschaltung durch einen Steuerkanal der Basisstation (10) als auch mit der Fernsprechvermittlung gekoppelt ist, zum kontinuierlichen Überwachen des Zustands der Zeitschlitze und zum Bewegen der Funkfernsprechschaltung und der Fernsprechvermittlung dazu, die Verbindungen zwischen ausgewählten Anschlüssen des externen Funkfernsprechnetzes und ausgewählten Teilnehmer stationen (42) über Zeitschlitze zu vervollständigen, die infolge des überwachten Zustands jedes der Zeitschlitze zugeordnet werden; wobei der Prozessor mit der Fernleitung einen Speicher zum Speichern der Verbindungen in jedem Zeitintervall aufweist, wodurch er zu jeder Zeit fähig ist, festzustellen, wo innerhalb der Matrix ein Transfer von Zeitschlitzen durchgeführt werden kann.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3845017A DE3845017B4 (de) | 1988-11-07 | 1988-11-07 | Digitales Funkfernsprechsystem |
DE3845015A DE3845015B4 (de) | 1988-11-07 | 1988-11-07 | Digitales Funkfernsprechsystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07082238 US4785450B1 (en) | 1987-08-06 | 1987-08-06 | Apparatus and method for obtaining frequency agility in digital communication system |
AU24437/88A AU590168B1 (en) | 1987-08-06 | 1988-10-27 | Apparatus and method for obtaining frequency agility in digital communication systems |
Publications (3)
Publication Number | Publication Date |
---|---|
DE3837734A1 DE3837734A1 (de) | 1990-05-10 |
DE3837734C2 true DE3837734C2 (de) | 1995-04-20 |
DE3837734C3 DE3837734C3 (de) | 2002-11-07 |
Family
ID=25619330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3837734A Expired - Lifetime DE3837734C3 (de) | 1987-08-06 | 1988-11-07 | Digitales Funkfernsprechsystem |
Country Status (7)
Country | Link |
---|---|
US (1) | US4785450B1 (de) |
AU (1) | AU590168B1 (de) |
BE (1) | BE1001871A4 (de) |
DE (1) | DE3837734C3 (de) |
FR (1) | FR2638920A1 (de) |
GB (1) | GB2224414C (de) |
NL (1) | NL191725C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7650146B2 (en) | 2003-07-02 | 2010-01-19 | Disetronic Licensing Ag | System and method for monitoring communication |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4675863A (en) | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
US4777633A (en) * | 1987-08-14 | 1988-10-11 | International Mobile Machines Corp. | Base station for wireless digital telephone system |
US5495508A (en) * | 1987-11-20 | 1996-02-27 | Interdigital Technology Corporation | Base station emulator |
US5930297A (en) * | 1989-11-20 | 1999-07-27 | Interdigital Technology Corporation | Base station emulator |
US4935927A (en) * | 1987-11-20 | 1990-06-19 | International Mobile Machines Corporation | Base station emulator |
US7106819B1 (en) * | 1987-11-20 | 2006-09-12 | Interdigital Technology Corporation | Plural subscriber system utilizing synchronized timeslots on a single frequency |
US4866710A (en) * | 1988-02-22 | 1989-09-12 | Motorola, Inc. | Reuse groups for scan monitoring in digital cellular systems |
SE460749B (sv) * | 1988-03-15 | 1989-11-13 | Ericsson Telefon Ab L M | Foerfarande att oeverfoera datainformation i ett cellindelat mobilradiokommunikationssystem |
US7606575B2 (en) * | 1988-08-04 | 2009-10-20 | Broadcom Corporation | Remote radio data communication system with data rate switching |
US20010050943A1 (en) * | 1989-08-03 | 2001-12-13 | Mahany Ronald L. | Radio frequency communication network having adaptive communication parameters |
US4881225A (en) * | 1988-08-31 | 1989-11-14 | Rockwell International Corporation | Digital loop carrier system having multiplexed interrupt structure |
JPH0624366B2 (ja) * | 1988-11-24 | 1994-03-30 | 日本電気株式会社 | ネットワーク障害回復方式 |
US5257401A (en) * | 1989-04-17 | 1993-10-26 | Telefonaktiebolaget L M Ericsson | Method of maintaining an established connection in a mobile radio system comprising both analog and digital radio channels |
US5042082A (en) * | 1989-06-26 | 1991-08-20 | Telefonaktiebolaget L. M. Ericsson | Mobile assisted handoff |
US5020056A (en) * | 1989-05-02 | 1991-05-28 | General Electric Company | Reduction of synchronous fading effects by time hopping of user slots in TDMA frames |
GB2232326A (en) * | 1989-05-26 | 1990-12-05 | Philips Electronic Associated | Data transmission over a tdm duplex frequency channel |
US4949395A (en) * | 1989-07-07 | 1990-08-14 | Telefonaktiebolaget L M Ericsson | Method and arrangement for dynamically allocating time slots to connections in a digital mobile radio system |
US5701297A (en) * | 1989-09-27 | 1997-12-23 | Motorola, Inc. | Data over cellular |
SE8903455D0 (sv) * | 1989-10-19 | 1989-10-19 | Joakim Nelson | Dynamiska digitala foerbindelsenaet (dfn) |
US5047763A (en) * | 1989-11-30 | 1991-09-10 | Motorola, Inc. | Selective call system with message rebroadcasting over another selective call system |
JP3036854B2 (ja) * | 1990-12-21 | 2000-04-24 | 日本電気株式会社 | 干渉検出回路 |
US5229996A (en) * | 1991-02-28 | 1993-07-20 | Telefonaktiebolaget L M Ericsson | Split-window time alignment |
US5504936A (en) | 1991-04-02 | 1996-04-02 | Airtouch Communications Of California | Microcells for digital cellular telephone systems |
US5243598A (en) * | 1991-04-02 | 1993-09-07 | Pactel Corporation | Microcell system in digital cellular |
TW327488U (en) * | 1991-05-29 | 1998-02-21 | Video Tech Eng | Digital cordless telephone apparatus |
FI88991C (fi) * | 1991-10-03 | 1993-07-26 | Nokia Telecommunications Oy | Allokeringsfoerfarande foer radiokanaler |
FR2682839B1 (fr) * | 1991-10-22 | 1993-12-10 | Dassault Automatismes Telecommun | Dispositif telephonique perfectionne pour reseau de communication telephonique a postes fixes et postes autonomes. |
SE9200283D0 (sv) * | 1992-02-03 | 1992-02-03 | Peter Aahl | Dynamisk varierbar radiostation-dvr |
US5452290A (en) * | 1992-10-26 | 1995-09-19 | Motorola, Inc. | Look ahead channel switching transceiver |
US5722040A (en) * | 1993-02-04 | 1998-02-24 | Pacific Communication Sciences, Inc. | Method and apparatus of frequency generation for use with digital cordless telephones |
US5546383A (en) * | 1993-09-30 | 1996-08-13 | Cooley; David M. | Modularly clustered radiotelephone system |
US5771449A (en) * | 1994-03-17 | 1998-06-23 | Endlink, Inc. | Sectorized multi-function communication system |
EP0998156A3 (de) * | 1994-03-17 | 2000-05-24 | Endlink, Inc. | Sektorisierte zellulare Multifunktionsfunkkommunikation |
US6058104A (en) * | 1994-06-17 | 2000-05-02 | Home Wireless Networks, Inc. | Communications webs for PSTN subscribers |
US6418131B1 (en) * | 1994-06-17 | 2002-07-09 | Lake Communications Limited | Spectrum monitoring for PSTN subscribers |
US6404761B1 (en) | 1994-06-17 | 2002-06-11 | Home Wireless Networks, Inc. | Communications webs with personal communications links for PSTN subscribers |
MY114291A (en) * | 1995-01-31 | 2002-09-30 | Qualcomm Inc | Concentrated subscriber system for wireless local loop |
US5574974A (en) * | 1995-03-20 | 1996-11-12 | Telefonaktiebolaget Lm Ericsson | Adaptive channel allocation in a mobile communications system |
US5734979A (en) | 1995-05-04 | 1998-03-31 | Interwave Communications International, Ltd. | Cellular base station with intelligent call routing |
US5781582A (en) * | 1995-05-04 | 1998-07-14 | Interwave Communications International Ltd. | Frequency agile transceiver with multiple frequency synthesizers per transceiver |
US5682403A (en) * | 1995-05-04 | 1997-10-28 | Wavelink Communications | Spread spectrum communication network signal processor |
US5697056A (en) * | 1995-05-08 | 1997-12-09 | Motorola, Inc. | Communication system in which radio subscriber units mitigate interference |
US5754536A (en) * | 1995-10-30 | 1998-05-19 | Motorola, Inc. | Digital speech interpolation method and apparatus |
US5818825A (en) * | 1995-11-29 | 1998-10-06 | Motorola, Inc. | Method and apparatus for assigning communications channels in a cable telephony system |
DE19612108A1 (de) * | 1996-03-27 | 1997-10-02 | Bosch Gmbh Robert | Punkt-zu-Mehrpunkt Funkübertragungssystem |
DE19620843B4 (de) | 1996-05-23 | 2005-08-11 | Siemens Ag | Verfahren zur Modulation eines Modulationsträgers und Mobil-Kommunikationssystem |
US6111870A (en) | 1996-11-07 | 2000-08-29 | Interdigital Technology Corporation | Method and apparatus for compressing and transmitting high speed data |
US6157627A (en) * | 1997-06-23 | 2000-12-05 | Telefonaktiebolaget Lm Ericsson | Channel allocation for mixed multislot services |
DE69738027T2 (de) * | 1997-08-20 | 2008-04-30 | Mitsubishi Denki K.K. | Mobile Kommunkationsanordnung |
US9118387B2 (en) | 1997-11-03 | 2015-08-25 | Qualcomm Incorporated | Pilot reference transmission for a wireless communication system |
US7184426B2 (en) | 2002-12-12 | 2007-02-27 | Qualcomm, Incorporated | Method and apparatus for burst pilot for a time division multiplex system |
DE19805546C2 (de) * | 1998-02-11 | 2000-02-17 | Siemens Ag | Verfahren und Funkstation zur Datenübertragung |
JP2003503898A (ja) * | 1999-06-29 | 2003-01-28 | シーメンス インフォメイション アンド コミュニケイション モバイル エルエルシー | マスタ移動ユニットとスレーブ局との連係のための方法およびシステム |
US8064409B1 (en) | 1999-08-25 | 2011-11-22 | Qualcomm Incorporated | Method and apparatus using a multi-carrier forward link in a wireless communication system |
US6621804B1 (en) | 1999-10-07 | 2003-09-16 | Qualcomm Incorporated | Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel |
US6665296B1 (en) | 1999-12-09 | 2003-12-16 | Social Fabric Corporation | Network access communication system |
FR2806577B1 (fr) * | 2000-03-16 | 2002-10-11 | Cit Alcatel | Systeme de telecommunication dans lequel chaque terminal comporte plusieurs connexions |
JP3518597B2 (ja) * | 2000-10-05 | 2004-04-12 | 日本電気株式会社 | 移動通信システムおよび非同期干渉回避方法 |
US7068683B1 (en) | 2000-10-25 | 2006-06-27 | Qualcomm, Incorporated | Method and apparatus for high rate packet data and low delay data transmissions |
US6973098B1 (en) | 2000-10-25 | 2005-12-06 | Qualcomm, Incorporated | Method and apparatus for determining a data rate in a high rate packet data wireless communications system |
EP2220789B1 (de) * | 2007-11-21 | 2013-07-31 | QUALCOMM Incorporated | Verfahren und vorrichtung zum zeitschlitz-überwechsel |
US8811200B2 (en) | 2009-09-22 | 2014-08-19 | Qualcomm Incorporated | Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US3764915A (en) * | 1971-06-25 | 1973-10-09 | Bell Telephone Labor Inc | Dynamic program control for channel assignment in mobile communication systems |
DE2659635B2 (de) * | 1976-12-30 | 1979-06-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur digitalen Informationsübertragung fiber Funk |
US4215244A (en) * | 1978-12-18 | 1980-07-29 | The United States Of America As Represented By The Secretary Of The Army | Self-adaptive mobile subscriber access system employing time division multiple accessing |
US4355412A (en) * | 1979-04-10 | 1982-10-19 | Nissan Motor Company, Limited | Preset station selecting device in a radio receiver |
US4355411A (en) * | 1980-03-24 | 1982-10-19 | Bell Telephone Laboratories, Incorporated | Technique for efficient spectrum utilization in mobile radio systems using space diversity |
US4398063A (en) * | 1980-10-24 | 1983-08-09 | Hass Ronald J | Mobile telephone interoffice handoff limiting method and apparatus |
US4519068A (en) * | 1983-07-11 | 1985-05-21 | Motorola, Inc. | Method and apparatus for communicating variable length messages between a primary station and remote stations of a data communications system |
DE3447107A1 (de) * | 1984-12-22 | 1986-06-26 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur nachrichtenuebertragung in einem digitalen funkuebertragungssystem |
US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
DE3527329A1 (de) * | 1985-07-31 | 1987-02-05 | Philips Patentverwaltung | Digitales funkuebertragungssystem mit variabler zeitschlitzdauer der zeitschlitze im zeitmultiplexrahmen |
US4777633A (en) * | 1987-08-14 | 1988-10-11 | International Mobile Machines Corp. | Base station for wireless digital telephone system |
JPS63187739A (ja) * | 1987-01-30 | 1988-08-03 | Nippon Telegr & Teleph Corp <Ntt> | 回線割当制御方式 |
SE455750B (sv) * | 1987-06-11 | 1988-08-01 | Ericsson Telefon Ab L M | Digitalt tidsmultiplext mobiltelefonisystem med ett effektivt utnyttjande av varje tidsram |
US4866710A (en) * | 1988-02-22 | 1989-09-12 | Motorola, Inc. | Reuse groups for scan monitoring in digital cellular systems |
-
1987
- 1987-08-06 US US07082238 patent/US4785450B1/en not_active Expired - Lifetime
-
1988
- 1988-10-25 GB GB8824922A patent/GB2224414C/en not_active Expired - Lifetime
- 1988-10-27 AU AU24437/88A patent/AU590168B1/en not_active Expired
- 1988-11-07 DE DE3837734A patent/DE3837734C3/de not_active Expired - Lifetime
- 1988-11-09 BE BE8801283A patent/BE1001871A4/fr not_active IP Right Cessation
- 1988-11-09 FR FR8814617A patent/FR2638920A1/fr active Granted
- 1988-11-14 NL NL8802798A patent/NL191725C/nl not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7650146B2 (en) | 2003-07-02 | 2010-01-19 | Disetronic Licensing Ag | System and method for monitoring communication |
Also Published As
Publication number | Publication date |
---|---|
NL191725C (nl) | 2002-08-21 |
GB2224414C (en) | 2006-09-13 |
US4785450A (en) | 1988-11-15 |
GB8824922D0 (en) | 1988-11-30 |
GB2224414A (en) | 1990-05-02 |
BE1001871A4 (fr) | 1990-04-03 |
NL8802798A (nl) | 1990-06-01 |
DE3837734A1 (de) | 1990-05-10 |
FR2638920B1 (de) | 1997-02-28 |
US4785450B1 (en) | 1999-10-12 |
DE3837734C3 (de) | 2002-11-07 |
FR2638920A1 (fr) | 1990-05-11 |
AU590168B1 (en) | 1989-10-26 |
GB2224414B (en) | 1993-10-27 |
NL191725B (nl) | 1995-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: INTERDIGITAL TECHNOLOGY CORP., WILMINGTON, DEL., U |
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