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41. 发明专利

JPH08509592A 失效
公开(公告)号：JPH08509592A
公开(公告)日：1996-10-08
申请号：JP52280095
申请日：1995-02-23
IPC分类号： H04B1/10 , H04B1/707 , H04B7/26 , H04J11/00 , H04L27/00 , H04J13/02

42. 发明专利

JPH08509343A 失效
公开(公告)号：JPH08509343A
公开(公告)日：1996-10-01
申请号：JP52127695
申请日：1995-02-03
IPC分类号： H04B1/10 , H04B1/707 , H04B7/216 , H04B7/26 , H04J13/02

43. 发明专利

JP2537520B2 失效
公开(公告)号：JP2537520B2
公开(公告)日：1996-09-25
申请号：JP18765287
申请日：1987-07-29
申请人： CANON KK
发明人： KATO ICHIRO
IPC分类号： H04J13/00 , H04B1/709 , H04J13/02

44. 发明专利

JPH08237726A METHOD AND EQUIPMENT FOR RADIOCOMMUNICATION 失效
公开(公告)号：JPH08237726A
公开(公告)日：1996-09-13
申请号：JP31829395
申请日：1995-12-06
申请人： ERICSSON TELEFON AB L M
发明人： PETORUSU FUBERUTSUSU GERARUDOU
IPC分类号： H04J13/02 , H04B1/10 , H04B7/26 , H04W72/02 , H04Q7/28
摘要： PROBLEM TO BE SOLVED: To allow optimum allocation of a temporarily available radio frequency band by defining a suitable access rule. SOLUTION: A central control and application logic 51 controls the detection of all personal calls and output calls, and executes different connection and radio channel mergence through a multiplexer 50. At the time of BECT e.g. the logic 51 executes various combination controls of time slots with carrier frequency bands. The selection of a 1st or 2nd antenna 31 or 31' by a switch 53 is also controlled by the logic 51. In order to correctly select a time slot, the logic 51 scans a prescribed communication channel and the existence of interference in the radio frequency band is detected by a scanning means 52. When there is an available free communication channel, the means 52 allocates the channel and mutually exchanges a remote unit concerned and correct application information under the control of the logic 51 to establish communication by the channel.

45. 发明专利

JPH08237190A CHANNEL EVALUATION METHOD AND RECEIVER 失效
公开(公告)号：JPH08237190A
公开(公告)日：1996-09-13
申请号：JP27280195
申请日：1995-10-20
申请人： NOKIA MOBILE PHONES LTD
发明人： YORUMA RIREBERUGU , TEIMO RAAKUSO
IPC分类号： H04J9/00 , H04B1/707 , H04B1/7107 , H04B7/26 , H04B17/00 , H04Q7/34 , H04J13/02
摘要： PROBLEM TO BE SOLVED: To provide a method for more accurate channel evaluation allowing for elimination of multi-access interference and a receiver executing this method with respect to a receiver of a cellular radio system. SOLUTION: The receiver of the cellular radio system provided with a means which eliminates multi-access interference from a reception signal is provided with a means 23 which calculates channel evaluation in accordance with the signal subjected to elimination of multi-access interference for the purpose of obtaining satisfactory channel evaluation.

46. 发明专利

JP2532835B2 失效
公开(公告)号：JP2532835B2
公开(公告)日：1996-09-11
申请号：JP6610086
申请日：1986-03-26
申请人： FUIRITSUPUSU FURUUIRANPENFUABURIKEN NV
发明人： ARUFUONSU AITSUENHEEFUAA , KURISUTOPU GURAUERU
IPC分类号： H04J3/06 , H04J13/00 , H04W88/08 , H04J13/02

47. 发明专利

JPH08508152A 失效
公开(公告)号：JPH08508152A
公开(公告)日：1996-08-27
申请号：JP51288094
申请日：1994-10-28
IPC分类号： H04B1/7087 , H04B1/7117 , H04B7/08 , H04B7/26 , H04J13/02

48. 发明专利

JPH08163082A TRANSMISSION METHOD 失效
公开(公告)号：JPH08163082A
公开(公告)日：1996-06-21
申请号：JP33174394
申请日：1994-12-09
申请人： SONY CORP
发明人： MIYATO YOSHIKAZU , IKEDA YASUNARI , IKEDA TAMOTSU
IPC分类号： H04J11/00 , H04J13/02
摘要： PURPOSE: To obtain a high coding gain in comparison with a system where a 2-dimension trelis coding modulation signal is sent with one carrier by using plural carriers orthogonal to each other so as to send a multi-dimension coding modulation signal. CONSTITUTION: A mapping device 14 is made up of a signal selector and a multiplexer and the multiplexer provides an output of data of two sets of digital modulation points outputted by the signal selector for an orthogonal frequency division multiplex modulator 15 while selecting data of digital modulation point for each time slot. The orthogonal frequency division multiplex modulator 15 modulates one of plural carriers orthogonal to each other based on the outputs and provides an output of IF band orthogonal frequency division multiplex signal. The signal is frequency-converted into an RF band signal and it is transmitted. Thus, redundant data in 1-bit are allocated to two carriers by using one signal point with the two carriers of the orthogonal frequency division multiplex system in this way.

49. 发明专利

JPH08125575A COMMUNICATION SYSTEM 失效
公开(公告)号：JPH08125575A
公开(公告)日：1996-05-17
申请号：JP27366095
申请日：1995-09-28
申请人： AT & T CORP
发明人： ROBAATO EBUAN MAIYAA , JIYATSUKU CHII CHIE UEN
IPC分类号： H04B1/66 , H04J1/00 , H04W88/08 , H04J13/02
摘要： PROBLEM TO BE SOLVED: To reduce the dynamic range of a multicarrier signal without removing a carrier signal and transmission information by providing a dynamic range reduction multi-carrier signal processor for a receiver. SOLUTION: A signal divider 301 receives the multicarrier signal, takes N+2-pieces of samples and sends one sample on respective signal paths 311-37N. The sample sent to the path 315 is supplied to a controller 307, the signal is analyzed and the relative power is judged. The controller 307 gives an instruction that the specified constitution carrier signal is isolated from the multicarrier signal and it is corrected to respective signal modifiers 351-35N through paths 341-34N after the signal is analyzed. The respective signal modifiers change and correct the phase or the amplitude of the target signal or both of them in accordance with the direction. A signal coupler 303 receives N+1-pieces of signals, namely, signals from the path 311 and the signals from the respective signal modifiers through paths 381-38N and injects again the isolated/modified signal into the unmodified multicarrier signal.

50. 发明专利

JPH0837515A METHOD FOR CONTROLLING TRANSMISSION POWER FOR CDMA SYSTEM AND DEVICE 失效
公开(公告)号：JPH0837515A
公开(公告)日：1996-02-06
申请号：JP7793895
申请日：1995-04-03
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： DOI TOSHIHIRO , SAWAHASHI MAMORU , ONO HIROSHI
IPC分类号： H04W52/04 , H04B7/005 , H04B7/26 , H04J13/00 , H04L1/00 , H04W52/00 , H04W52/02 , H04W52/08 , H04J13/02
摘要： PURPOSE:To conduct high-accuracy transmission power control with high responsiveness by decoding only the transmission power connecting bit in a short period while using a simplified viterbi decoder, and controlling the transmission power based on this decoded result. CONSTITUTION:A received digital signal outputted from a reception radio part 12 is demodulated by a demodulating part 14 after diffusion is removed by an inverse diffusing part 13. The demodulated received signal is distributed to two systems. The received signal of the first system is decoded by a normal viterbi decoder 15 equipped with a path memory with and about five times restrict length. The received signal of the second system is decoded by a simplified viterbi decoder 16 equipped with a path memory of which the memory length is shorter. As an information data signal, the output of the normal viterbi decoder 15 is used. On the other hand, the transmission power control is performed while using the transmission power control bit of the signal decoded by the simplified viterbi decoder 16. A transmission power control bit extracting part 17 extracts the transmission power control bit from the signal decoded by the simplified viterbi decoder 16.

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