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1. 发明申请

WO1996021289A1 PORTABLE HANDSET FOR TDD/FDD WIRELESS COMMUNICATION 审中-公开
标题翻译： TDD / FDD无线通信便携式手机
公开(公告)号：WO1996021289A1
公开(公告)日：1996-07-11
申请号：PCT/US1995016437
申请日：1995-12-15
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： BELL COMMUNICATIONS RESEARCH, INC. , ARNOLD, Hamilton, Webster , CHANG, Li, Fung , NOERPEL, Anthony, Robert , SOLLENBERGER, Nelson, Ray , ZIEGLER, Robert, Anthony
IPC分类号： H04B07/212
CPC分类号： H04W88/06 , H04B1/005 , H04B1/405 , H04B1/406 , H04B7/0608 , H04B7/0805 , H04B7/2615 , H04J4/00 , H04W4/18 , H04W88/02
摘要： In a TDM/TDMA portable radio communications system (5), a portable handset (201) is compatible for operation in FDD mode and TDD mode. In the FDD mode, different frequencies are used to separate a downlink transmission to a portable (201) from a port (204) from an uplink transmission from a port (204) to a portable (201). In the TDD mode, uplink and downlink transmissions are separated in different time-slots, but at the same frequency. The handset (201) includes common transmit and receive circuitry (300) that operates at fixed IF frequencies separated by the fixed FDD frequency difference between corresponding uplink and downlink signals. In the FDD mode, a frequency synthesizer (301), which is used to tune to transmit and receive at different frequencies from different ports, is not switched in frequency between transmitting and receiving a burst to and from a single port. In the TDD mode, the synthesizer (301) is switched in frequency between transmitting uplink and receiving downlink even though uplink and downlink signals are at the same frequency.
摘要翻译：在TDM / TDMA便携式无线电通信系统（5）中，便携式手持机（201）兼容于FDD模式和TDD模式中的操作。在FDD模式中，使用不同的频率将来自端口（204）的便携式（201）的下行链路传输从从端口（204）到便携式（201）的上行链路传输分离。在TDD模式中，上行链路和下行链路传输在不同的时隙中分离，但是频率相同。手机（201）包括在由相应的上行链路和下行链路信号之间的固定FDD频率差分开的固定IF频率下操作的公共发射和接收电路（300）。在FDD模式中，用于调谐以从不同端口发送和接收不同频率的频率合成器（301）在从单个端口发送和接收脉冲串之间没有频率切换。在TDD模式中，即使上行链路和下行链路信号处于相同的频率，合成器（301）在发送上行链路和接收下行链路之间的频率也被切换。

2. 发明申请

WO1997027677A1 METHOD FOR ASSIGNING BAND PORT CHANNELS IN AN UNLICENSED PERSONAL COMMUNICATIONS SYSTEM 审中-公开
标题翻译：在未经许可的个人通信系统中组合带口信道的方法
公开(公告)号：WO1997027677A1
公开(公告)日：1997-07-31
申请号：PCT/US1996003506
申请日：1996-03-14
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： BELL COMMUNICATIONS RESEARCH, INC. , CHANG, Li-Fung , NOERPEL, Anthony, Robert , RANADE, Ashok , SOLLENBERGER, Nelson, Ray
IPC分类号： H04B01/18
CPC分类号： H04W16/16
摘要： A number of RPs stagger the times in which they begin searching for available channels. In a preferred method, one of a plurality of RPs in a UPCS system is selected to have a first start time (520). The system determines which RPs in the system can "see" the selected RP. Each of these RPs is given a unique stagger start time (526). This process may be repeated until each RP in the system is assigned a stagger start time (530). Alternatively, if there are fewer RPs in the system than there are available stagger start times, each RP may be selected to have a unique stagger start time.
摘要翻译：许多RP错开了他们开始搜索可用频道的时间。在优选的方法中，UPCS系统中的多个RP中的一个被选择为具有第一开始时间（520）。系统确定系统中的哪些RP可以“查看”所选的RP。每个这些RP都有一个独特的错开始时间（526）。可以重复该过程，直到系统中的每个RP分配错开始时间（530）。或者，如果系统中的RP少于可用的交错开始时间，则可以选择每个RP具有唯一的交错开始时间。

3. 发明申请

WO1997004551A1 METHOD FOR ADAPTIVELY SWITCHING BETWEEN PCS AUTHENTICATION SCHEMES 审中-公开
标题翻译： PCS认证方案之间的适应性切换方法
公开(公告)号：WO1997004551A1
公开(公告)日：1997-02-06
申请号：PCT/US1996002969
申请日：1996-03-04
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： BELL COMMUNICATIONS RESEARCH, INC. , LIN, Jason Yi-Bing , MOHAN, Seshadri , SHERRY, Howard , SOLLENBERGER, Nelson, Ray
IPC分类号： H04L09/32
CPC分类号： H04W12/06 , H04L63/20 , H04W28/02
摘要： The automaton used in the invention has 2n states, running from 0 to 2n-1. When the automaton is between the state 0 (302) and state n-1 (308), the WS authentication scheme is performed. But, when the automaton is between state n (310) and 2n-1 (316), the S authentication scheme is performed. The switching between the authentication schemes increases the efficiency of the overall authentication functions in the mobile communication system thereby reducing the number of database accesses needed to authenticate a registration or a call.
摘要翻译：本发明中使用的自动机具有从0到2n-1的2n状态。当自动机处于状态0（302）和状态n-1（308）之间时，执行WS认证方案。但是，当自动机在状态n（310）和2n-1（316）之间时，执行S认证方案。认证方案之间的切换提高了移动通信系统中的整体认证功能的效率，从而减少了认证注册或呼叫所需的数据库访问次数。

4. 发明公开

EP0875099A1 METHOD FOR ASSIGNING BAND PORT CHANNELS IN AN UNLICENSED PERSONAL COMMUNICATIONS SYSTEM 失效
标题翻译：对于频带端口通道分配方法在未经许可的个人通信系统
公开(公告)号：EP0875099A1
公开(公告)日：1998-11-04
申请号：EP96908811.0
申请日：1996-03-14
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： CHANG, Li-Fung , NOERPEL, Anthony, Robert , RANADE, Ashok , SOLLENBERGER, Nelson, Ray
IPC分类号： H04B1 , H04W16
CPC分类号： H04W16/16
摘要： A number of RPs stagger the times in which they begin searching for available channels. In a preferred method, one of a plurality of RPs in a UPCS system is selected to have a first start time (520). The system determines which RPs in the system can 'see' the selected RP. Each of these RPs is given a unique stagger start time (526). This process may be repeated until each RP in the system is assigned a stagger start time (530). Alternatively, if there are fewer RPs in the system than there are available stagger start times, each RP may be selected to have a unique stagger start time.

5. 发明公开

EP0809894A1 PORTABLE HANDSET FOR TDD/FDD WIRELESS COMMUNICATION 失效
标题翻译：便携式手持无线通信在TDD FDD模式和
公开(公告)号：EP0809894A1
公开(公告)日：1997-12-03
申请号：EP95943135.0
申请日：1995-12-15
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： ARNOLD, Hamilton, Webster , CHANG, Li, Fung , NOERPEL, Anthony, Robert , SOLLENBERGER, Nelson, Ray , ZIEGLER, Robert, Anthony
IPC分类号： H04B1 , H04B7 , H04J3 , H04J4 , H04M1 , H04W88 , H04W4
CPC分类号： H04W88/06 , H04B1/005 , H04B1/405 , H04B1/406 , H04B7/0608 , H04B7/0805 , H04B7/2615 , H04J4/00 , H04W4/18 , H04W88/02
摘要： In a TDM/TDMA portable radio communications system (5), a portable handset (201) is compatible for operation in FDD mode and TDD mode. In the FDD mode, different frequencies are used to separate a downlink transmission to a portable (201) from a port (204) from an uplink transmission from a port (204) to a portable (201). In the TDD mode, uplink and downlink transmissions are separated in different time-slots, but at the same frequency. The handset (201) includes common transmit and receive circuitry (300) that operates at fixed IF frequencies separated by the fixed FDD frequency difference between corresponding uplink and downlink signals. In the FDD mode, a frequency synthesizer (301), which is used to tune to transmit and receive at different frequencies from different ports, is not switched in frequency between transmitting and receiving a burst to and from a single port. In the TDD mode, the synthesizer (301) is switched in frequency between transmitting uplink and receiving downlink even though uplink and downlink signals are at the same frequency.

6. 发明公开

EP0843929A1 METHOD FOR ADAPTIVELY SWITCHING BETWEEN PCS AUTHENTICATION SCHEMES 失效
标题翻译：方法自适应切换之间的不同PCS AUTHENTHIFIZIERUNGSVERFAHREN
公开(公告)号：EP0843929A1
公开(公告)日：1998-05-27
申请号：EP96910366.0
申请日：1996-03-04
申请人： BELL COMMUNICATIONS RESEARCH, INC.
发明人： LIN, Jason Yi-Bing, National Chiao Tung University , MOHAN, Seshadri , SHERRY, Howard , SOLLENBERGER, Nelson, Ray
IPC分类号： H04L9 , H04W12
CPC分类号： H04W12/06 , H04L63/20 , H04W28/02
摘要： The automaton used in the invention has 2n states, running from 0 to 2n-1. When the automaton is between the state 0 (302) and state n-1 (308), the WS authentication scheme is performed. But, when the automaton is between state n (310) and 2n-1 (316), the S authentication scheme is performed. The switching between the authentication schemes increases the efficiency of the overall authentication functions in the mobile communication system thereby reducing the number of database accesses needed to authenticate a registration or a call.

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