专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP1766792B1 A CELLULAR COMMUNICATION SYSTEM, A NETWORK ELEMENT AND A METHOD OF OPERATION THEREFOR 有权转让
标题翻译：蜂窝通信系统，网元和操作THEREFOR的方法
公开(公告)号：EP1766792B1
公开(公告)日：2011-01-05
申请号：EP05770252.4
申请日：2005-07-07
申请人： MOTOROLA, INC.
发明人： KILDEGAARD, Thomas C. Motorola A/S , GONZALEZ ORTIZ, Natalia Guadalupe Motorola Limited , PETERSEN, Steen Motorola A/S
IPC分类号： H04L12/58
CPC分类号： H04W4/18 , H04L51/066 , H04W4/12 , H04W92/02
摘要： A base station (101) for a cellular communication system is coupled to a fixed network (107) and receives text strings for transmission to remote units (103, 105). The base station includes a receive processor (111) which receives a first text string encoded in a first encoding format. The receive processor (111) is coupled to a conversion processor (113) which converts the first text string to a second text string at least partially encoded in a second encoding format. The first encoding format may be an UTF-8 or UTF-16 text encoding format and the second encoding format may be an ASCII text encoding format. The conversion processor (113) is coupled to a transceiver (115) which transmits the second text string to the remote units (103, 105).

2. 发明授权

EP1595361B1 SCHEDULING OF SIGNALING MESSAGES IN A WIRELESS TDMA-BASED COMMUNICATION SYSTEM 有权
标题翻译：附表计划在无线通信系统TDMA信令消息
公开(公告)号：EP1595361B1
公开(公告)日：2010-09-22
申请号：EP04708366.2
申请日：2004-02-05
申请人： MOTOROLA, INC.
发明人： JAKOBSEN, Ken Motorola A/S
IPC分类号： H04W72/12
CPC分类号： H04W72/1278 , H04W84/08
摘要： A wireless communication system (200) supporting packet data communications in a timeslot-based operational procedure, the communication system comprising a network processor for transmitting communications to and/or receiving communications from one or more remote communication terminals (212, 214), wherein the network processor (236, 248) comprises generation means for generating signaling, messages to be sent to target remote communication terminals and a scheduler (255) for scheduling sending of the signaling messages to target remote communication terminals, characterized in that the scheduler (255) is operable to receive a plurality of signaling messages from the generation means and to control timing of sending of the signaling messages whereby one more of the timeslots of the operational procedure incorporate two or more of the signaling messages. The invention enables short signaling messages, for example end-of-data messages, to be sent to a number of remote communication units, for example mobile stations, by sending two or more of the messages within the same timeslots. This provides the advantage that the number of timeslots used for control signaling will decrease, thereby increasing the number of timeslots available for data payload transfer thereby improving the speed and thoughput of data payload. The system may be a TETRA system.

3. 发明授权

EP1668943B1 Method and mobile station for automatic creation of talk group 失效转让
标题翻译：用于自动生成一个通话组的方法和移动站
公开(公告)号：EP1668943B1
公开(公告)日：2010-04-28
申请号：EP04766418.0
申请日：2004-08-04
申请人： MOTOROLA INC.
发明人： JORGENSON, Niels Erik
IPC分类号： H04W4/08 , H04W4/22
CPC分类号： H04W84/08 , H04M15/00 , H04M15/06 , H04M2215/32 , H04W4/90 , H04W76/50
摘要： A method of automatic creation of a talk group in a wireless radio communication system comprising a plurality of mobile stations, said method comprising the steps of: transmitting by a first mobile station an emergency message containing at least its ID and localization data; transmitting by other mobile stations their IDs and localization data in response to said emergency message; creating said talk group by selecting those mobile stations which transmitted their IDs and localization data.

4. 发明授权

EP1415486B1 DELIVERY OF BROADCAST INFORMATION TO A MOBILE STATION IN A RADIO COMMUNICATION SYSTEM 有权
标题翻译：广播信息到移动台发射的无线电通信系统
公开(公告)号：EP1415486B1
公开(公告)日：2010-02-10
申请号：EP02745350.5
申请日：2002-06-03
申请人： MOTOROLA, INC.
发明人： AITKENHEAD, Gary, John , EMBERSON, Grant , LOBO, Lynette
IPC分类号： H04W48/14
CPC分类号： H04W48/14

5. 发明授权

EP1611724B1 METHOD AND APPARATUS FOR PERFORMING LINEARIZATION IN A QUADRATURE TRANSMITTER 有权
标题翻译：方法和设备的线性化在正交SENDER
公开(公告)号：EP1611724B1
公开(公告)日：2009-05-27
申请号：EP04719464.2
申请日：2004-03-11
申请人： MOTOROLA, INC.
发明人： BEN-AYUN, Moshe, Motorola Israel Limited , NOCHAM, Gabriela, Motorola Israel Limited , ROZENTAL, Mark, Motorola Israel Limited
IPC分类号： H04L27/36 , H03F1/32
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3294 , H03F1/34 , H03F2200/153 , H03F2200/57 , H04L2027/0016
摘要： A wireless communication unit (300) comprises a linearised transmitter (325) having a forward path, a power amplifier (324) and a feedback loop, operably coupled to the power amplifier (324) and the forward path. The feedback loop comprises a loop adjustment function (442), and the forward path and feedback loop comprise quadrature circuits. A processor (322) applies a first training signal to a first quadrature circuit loop for routing through the forward path, power amplifier and feedback pat.i to determine at least one first parameter setting of the loop adjustment function (442). The processor (322) also applies a second training signal to a second quadrature circuit loop to determine at least a second parameter setting of the loop adjustment function (442). A linearised transmitter integrated circuit and method of training are also described. In this manner, by provision of a first training signal applied to a first quadrature (1) circuit loop and a second training signal applied to a second quadrature (Q) circuit any loop imbalance between the digital 'I' and 'Q' paths around the feedback loop can be compensated for.

6. 发明授权

EP1514444B1 WIRELESS COMMUNICATION SYSTEM, APPARATUS AND METHOD 有权
标题翻译：无线电通信系统，设备和方法
公开(公告)号：EP1514444B1
公开(公告)日：2009-05-06
申请号：EP03730198.3
申请日：2003-05-07
申请人： MOTOROLA INC. , Motorola Limited
发明人： SHAHAF, Mark , SERFATY, Salomon , GLAZER, Nimrod
IPC分类号： H04W12/08
CPC分类号： H04W12/08 , H04L63/0457 , H04L63/1466 , H04W12/02 , H04W12/12 , H04W48/02
摘要： A wireless communication system (100) includes at least one wireless serving communication unit (122) having a processor (320), operably coupled to a transmitter (220), encrypting network identification data (330) for transmission to a remote communication unit (112). A remote communication unit (112) includes a receiver (210) for receiving encrypted network identification data (330) from at least one of the serving wireless communication units (122-132), and a processor (360) to decrypt the encrypted network identification data (340) in order to determine whether the serving wireless communication unit (122) is a valid serving wireless communication unit (122). A remote communication unit (112), a broadcast message, a wireless serving communication unit (122) and method for obtaining network identification data (330) 20 are also provided. In this manner, fraudulent wireless serving communication units or fraudulent networks can be more readily detected.

7. 发明公开

EP1509051A3 Wireless communication system and wireless communication repeater for use therein 有权
标题翻译：无线通信系统以及用于适当的无线中继站
公开(公告)号：EP1509051A3
公开(公告)日：2008-11-05
申请号：EP04103538.7
申请日：2004-07-23
申请人： MOTOROLA INC.
发明人： Ofir, Gabi , Dory, Dan , Suplin, Anatoliy
IPC分类号： H04Q7/36
CPC分类号： H04W16/26 , H04B7/155 , H04B7/2606 , H04W84/08 , H04W84/18 , H04W88/04
摘要： A wireless communication system (100) comprises a plurality of wireless communication repeater units (122,132,142,152,162,172,182,192) that serve a plurality of wireless subscriber communication units (110,112,114) in respective areas. The plurality of repeater units (122,132,142,152,162,172,182,192) forms a closed loop communication path for routeing communications between wireless subscriber communication units (110,112,114). Communications are routed in a pre-determined direction around the loop and each of the repeater units is operable to receive a communication on a first operating frequency from a preceding wireless repeater communication unit in the loop and to relay the communication to a succeeding repeater unit on a second operating frequency.

8. 发明授权

EP1432132B1 Wireless communication unit and transmitter circuit therefor 有权
标题翻译：无线通信单元和相关联的发射器电路
公开(公告)号：EP1432132B1
公开(公告)日：2008-09-24
申请号：EP03104101.5
申请日：2003-11-06
申请人： MOTOROLA INC.
发明人： Aronas, Alik , Blay, Genadi , Kodner, Leonid
IPC分类号： H04B1/04 , H03F1/32
CPC分类号： H04B1/0475 , H03F1/32 , H03F1/3247 , H03F1/34 , H03F3/24 , H04B2001/0433

9. 发明公开

EP1408619A3 wireless communication unit and integrated circuit for use therein 审中-公开
标题翻译：无线消息传送设备和在使用集成电路
公开(公告)号：EP1408619A3
公开(公告)日：2008-08-13
申请号：EP03103733.6
申请日：2003-10-08
申请人： MOTOROLA, INC.
发明人： GROSSMAN, Ovadia , BEN-AYUN, Moshe , ROZENTAL, Mark
IPC分类号： H04B1/44 , H04B1/38 , H04B1/04
CPC分类号： H04B1/0458 , H04B1/0483
摘要： A wireless communication unit (200) includes a transmitter (220) for generating a transmit radio signal and an antenna (202), operably coupled to the transmitter (220), for radiating the radio signal. An isolator circuit (226) is operably coupled between the transmitter (220) and the antenna (202) and includes a first directional coupler (310) providing a first transmission path for routing a first portion of the transmit signal and a second transmission path (320) for routing a second portion of the transmit signal. A second coupler (340) is operably coupled to the first directional coupler (310), for combining the first portion of the transmit signal and the second portion of the transmit signal and providing a combined transmit signal to the antenna (202). A radio frequency transmitter integrated circuit is also described.
In this manner, by provision of a first directional coupler and a second coupler between the transmitter and the antenna, a return path to the transmitter for signals reflected at the antenna has acceptable isolation, with minimised insertion loss.

10. 发明公开

EP1929676A2 RF SYNTHESIZER AND RF TRANSMITTER OR RECEIVER INCORPORATING THE SYNTHESIZER 审中-公开
标题翻译： RF合成器以及含有合成RF发射机或接收机
公开(公告)号：EP1929676A2
公开(公告)日：2008-06-11
申请号：EP06790049.8
申请日：2006-08-25
申请人： Motorola, Inc.
发明人： LARSEN, Soren, Peter , HANSEN, Jacob, Tranegaard
IPC分类号： H04H3/00
CPC分类号： H03L7/087 , H03L7/081 , H03L7/1974 , H03L7/235
摘要： An RF (radio frequency) synthesizer (200) includes a VCO (voltage controlled oscillator) (120) operable to provide an output signal at a desired frequency, a phase locked loop (130) including (i) the VCO; (ii) a frequency divider (114) operable to receive an output signal of the VCO and to provide a feedback signal which is divided in frequency relative to the output signal of the VCO; and (iii) a phase frequency detector (110) operable to receive the feedback signal produced by the VCO and to compare a phase and frequency of the feedback signal with the phase and frequency of a reference signal; and is characterised by (iv) a further control loop (230) inside the phase locked loop (130); and (v) a phase rotator (205) connected to an output of the VCO and operable to equalise a phase error of an output signal produced by the VCO, the further control loop being connected to the phase rotator to provide a control signal to the phase rotator. The synthesizer may beneficially include an integrated circuit which incorporates at least part of the VCO, the phase locked loop and the further control loop. Also described is a RF transmitter or receiver, e.g. for use in a base transceiver station, which incorporates the synthesizer.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式