专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US07636345B2 Apparatus for and method of time related communications between multiple devices having different time bases 失效
标题翻译：具有不同时基的多个设备之间的时间相关通信的装置和方法
公开(公告)号：US07636345B2
公开(公告)日：2009-12-22
申请号：US11278960
申请日：2006-04-06
申请人： Elad Eyal , Oran Segal
发明人： Elad Eyal , Oran Segal
IPC分类号： H04J3/06 , G06F1/12
CPC分类号： H04J3/0638 , H04B7/2684 , H04B7/2693 , H04L7/0008 , H04W56/0015 , H04W74/00 , H04W88/06
摘要： A novel and useful apparatus for and method of communicating time related messages between multiple devices wherein each device operates using a different time base. The invention can be applied to multi-mode cellular handsets that implement multiple radio access technologies (RATs). Messages communicated between the RATs are time synchronized using a common time base that is shared among all the RATs in the system. The creation of the shared time base is based on an interrupt signal referred to as a “sync event”. The interrupt signal is generated by at least one of the devices and received by all the other devices. The local time is stored in a snapshot register and is used by each respective device as the basis to perform conversions between local and common time, common time being the time base that is shared by all the devices in the system. This ‘synchronizes’ the devices since they all took a snapshot of their respective local timers at substantially the same time.
摘要翻译：一种用于在多个设备之间传送时间相关消息的新颖有用的装置和方法，其中每个设备使用不同的时基进行操作。本发明可以应用于实现多种无线电接入技术（RAT）的多模蜂窝手机。在RAT之间传送的消息使用在系统中的所有RAT之间共享的公共时基进行时间同步。共享时基的创建基于被称为“同步事件”的中断信号。中断信号由至少一个设备产生，并由所有其他设备接收。本地时间存储在快照寄存器中，由各个设备使用，作为在本地和公共时间之间执行转换的基础，通常是系统中所有设备共享的时基。这将使设备“同步”，因为它们大体上在同一时间拍摄了各自的本地定时器。

82. 发明授权

US07453863B2 Cell searching apparatus and method in asynchronous mobile communication system 失效
标题翻译：异步移动通信系统中的小区搜索装置和方法
公开(公告)号：US07453863B2
公开(公告)日：2008-11-18
申请号：US10402942
申请日：2003-04-01
申请人： Hee-Sok Chung
发明人： Hee-Sok Chung
IPC分类号： H04J3/06
CPC分类号： H04W48/16 , H04B7/2684 , H04W48/20 , H04W56/00
摘要： A cell searching apparatus and method in an asynchronous mobile communication system allocates an adjacent SCG to each base station according to adjacent degrees. When a mobile terminal is powered on, the mobile terminal receives PSCs and SSCs from the base stations. Multiple searching of SSCs is then performed based on each slot synchronization followed by a frame synchronization and SCG detection through the first searched SSC. If the detected SCG is not an SCG of a base station to which the mobile terminal belongs, the cell searching apparatus detects an SCG with a large size among the adjacent SCGs and detects an SC by using the greatest SCG. Frame synchronization and SCG detection are therefore quickly performed in a cell searching, resulting in a quick search searching.
摘要翻译：异步移动通信系统中的小区搜索装置和方法根据相邻的度向每个基站分配相邻的SCG。当移动终端通电时，移动终端从基站接收PSCs和SSCs。然后基于每个时隙同步，然后通过第一个搜索的SSC执行帧同步和SCG检测来执行对SSC的多次搜索。如果检测到的SCG不是移动终端所属的基站的SCG，则小区搜索装置在相邻的SCG中检测大尺寸的SCG，并且通过使用最大的SCG来检测SC。因此，在单元搜索中快速执行帧同步和SCG检测，从而进行快速搜索。

83. 发明授权

US07295535B2 Method for signal acquisition in a wireless terminal and wireless terminal 有权
标题翻译：无线终端和无线终端信号采集方法
公开(公告)号：US07295535B2
公开(公告)日：2007-11-13
申请号：US10294432
申请日：2002-11-13
申请人： Ismo Halivaara
发明人： Ismo Halivaara
IPC分类号： H04Q7/20
CPC分类号： H04B7/2684 , H04B1/7075 , H04W48/16 , H04W56/00
摘要： The invention relates to a method for acquisition of a signal in a wireless terminal receiving a modulated signal transmitted by at least one base station. In the wireless terminal, timing information of the signal from at least two different base stations is used for the acquisition of the signal of at least one of said base stations. The invention also relates to a system, in which the method is applied, as well as to a wireless terminal.
摘要翻译：本发明涉及一种用于在接收由至少一个基站发送的调制信号的无线终端中获取信号的方法。在无线终端中，来自至少两个不同基站的信号的定时信息用于获取至少一个所述基站的信号。本发明还涉及应用该方法的系统以及无线终端。

84. 发明授权

US06850501B1 Method and arrangement for enhancing pre-synchronization reliability in a cellular radio system 有权
标题翻译：用于增强蜂窝无线电系统中的预同步可靠性的方法和装置
公开(公告)号：US06850501B1
公开(公告)日：2005-02-01
申请号：US09570881
申请日：2000-05-15
申请人： Benoist Sebire
发明人： Benoist Sebire
IPC分类号： H04B7/26 , H04L7/04 , H04W36/18 , H04Q7/00 , H04B7/212 , H04L12/50
CPC分类号： H04W56/005 , H04B7/2684 , H04L7/041 , H04W36/18 , H04W92/10
摘要： A method is presented for enhancing pre-synchronization reliability in a cellular radio system. At least one base station in the cellular radio system is arranged to transmit at least two such transmissions (350, 351; 360, 361; 370, 371; 380, 381) that are usable for mobile stations in pre-synchronization. Said two transmissions are relatively close to each other in succession and they are timed to occur approximately at a time when there is a temporary idle period in an active communication connection between a mobile station and a base station.
摘要翻译：提出了一种用于增强蜂窝无线电系统中的预同步可靠性的方法。蜂窝无线电系统中的至少一个基站被布置为在预同步中发送可用于移动台的至少两个这样的传输（350,351; 360,361; 370,371; 380,381）。所述两个传输相继相对接近，并且它们定时发生在移动台和基站之间的活动通信连接中存在临时空闲周期的时间。

85. 发明授权

US06829253B1 Methods and systems for efficiently using synchronization information in transitioning between channels in TDMA and CDMA communications systems 有权
标题翻译：在TDMA和CDMA通信系统中有效地使用同步信息在信道之间转换的方法和系统
公开(公告)号：US06829253B1
公开(公告)日：2004-12-07
申请号：US09723634
申请日：2000-11-28
申请人： Havish Koorapaty , Robert A. Zak , Carl B. Toot
发明人： Havish Koorapaty , Robert A. Zak , Carl B. Toot
IPC分类号： H04L708
CPC分类号： H04W56/0085 , H04B7/2684 , H04L7/042 , H04L7/08
摘要： Methods and systems for a transceiver to acquire synchronization to a channel in a TDMA communications system by identifying a known synchronization word in a burst received at the transceiver over the channel are provided. Pursuant to these methods and systems a first uncertainty window and a second uncertainty window are defined within a burst that is received over the channel. The transceiver may search in these uncertainty windows for the known synchronization word, where the first uncertainty window is smaller than the second uncertainty window. The first uncertainty window is first searched for the known synchronization word. It may then be determined if the known synchronization word has been located within the first uncertainty window. If it has not been, the second uncertainty window is then searched for the known synchronization word.
摘要翻译：提供了一种用于通过识别通过信道在收发器处接收的突发中的已知同步字来获取TDMA通信系统中的信道的同步的方法和系统。根据这些方法和系统，在通过信道接收的脉冲串内定义第一不确定性窗口和第二不确定性窗口。收发器可以在这些不确定性窗口中搜索已知的同步字，其中第一不确定性窗口小于第二不确定性窗口。第一个不确定窗口首先搜索已知的同步字。然后可以确定已知的同步字是否已经位于第一不确定性窗口内。如果没有，则搜索第二不确定性窗口以获得已知的同步字。

86. 发明申请

US20030133429A1 Uplink synchronization method in a CDMA communication system employing USTS 审中-公开
标题翻译：在采用USTS的CDMA通信系统中的上行链路同步方法
公开(公告)号：US20030133429A1
公开(公告)日：2003-07-17
申请号：US10135092
申请日：2002-04-29
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Sung-Ho Choi , Hyun-Woo Lee , Yong-Jun Kwak , Joon-Goo Park
IPC分类号： H04B007/216
CPC分类号： H04B7/2684 , H04B1/7075 , H04B2001/70706
摘要： A method for synchronizing a reception time point of a UL DPCH signal to a previously expected time point when the reception time point of the UL DPCH signal received from a UE is different from the previously expected time point by a Node B, wherein the Node B transmits a DL DPCH signal to the UE at a time point assigned to the UE on a basis of a reference time point of the Node B, and the DL DPCH signal includes a stream of TAB bits for uplink synchronization control. The method comprises measuring a difference between the reception time point of the UP DPCH signal and the expected time point; transmitting information for maintaining a transmission time of the UL DPCH signal previously transmitted by the UE to the UE using the TAB bits, when there is a difference between a lower limit value and an upper limit value, determined by the number of the TAB bits of the DL DPCH signal received by the UE; transmitting information for advancing a transmission time of the previously transmitted UL DPCH signal as much as a set unit determined by the number of the TAB bits using the TAB bits, when the difference is larger than or equal to the upper limit value; and transmitting information for delaying a transmission time of the previously transmitted UL DPCH signal as much as the set unit using the TAB bits, when the difference is less than the lower limit value.
摘要翻译：一种用于当从UE接收的UL DPCH信号的接收时间点与先前预期的时间点不同的节点B时，将UL DPCH信号的接收时间点与先前预期的时间点同步的方法，其中节点B 基于节点B的参考时间点，在分配给UE的时间点向UE发送DL DPCH信号，并且DL DPCH信号包括用于上行链路同步控制的TAB比特流。该方法包括测量UP DPCH信号的接收时间点与预期时间点之间的差值; 当由所述TAB比特的数目确定的下限值和上限值之间存在由所述TAB比特的数量确定的下限值和上限值之间的差时，发送用于使用所述TAB比特将由UE预先发送的UL DPCH信号的发送时间维持到UE的信息; 由UE接收的DL DPCH信号; 当所述差大于或等于所述上限值时，传送用于使所述先前发送的UL DPCH信号的发送时间提前多达由所述TAB比特的数量确定的设置单元的信息; 以及当所述差小于所述下限值时，使用所述TAB位发送用于延迟先前发送的UL DPCH信号的传输时间的信息，所述信息与所述设置单元一样多。

87. 发明申请

US20030091009A1 Method for signal acquisition in a wireless terminal and wireless terminal 有权
标题翻译：无线终端和无线终端信号采集方法
公开(公告)号：US20030091009A1
公开(公告)日：2003-05-15
申请号：US10294432
申请日：2002-11-13
申请人： Nokia Corporation
发明人： Ismo Halivaara
IPC分类号： H04B007/216
CPC分类号： H04B7/2684 , H04B1/7075 , H04W48/16 , H04W56/00
摘要： The invention relates to a method for acquisition of a signal in a wireless terminal receiving a modulated signal transmitted by at least one base station. In the wireless terminal, timing information of the signal from at least two different base stations is used for the acquisition of the signal of at least one of said base stations. The invention also relates to a system, in which the method is applied, as well as to a wireless terminal.
摘要翻译：本发明涉及一种用于在接收由至少一个基站发送的调制信号的无线终端中获取信号的方法。在无线终端中，来自至少两个不同基站的信号的定时信息用于获取至少一个所述基站的信号。本发明还涉及应用该方法的系统以及无线终端。

88. 发明授权

US5774810A Mobile radio communication device 失效
标题翻译：移动无线电通信设备
公开(公告)号：US5774810A
公开(公告)日：1998-06-30
申请号：US673823
申请日：1996-06-27
申请人： Nobuo Sugi
发明人： Nobuo Sugi
IPC分类号： H04B7/26 , H04L7/10 , H04W56/00
CPC分类号： H04W56/005 , H04B7/2684 , H04L7/10 , H04B7/2681 , H04W56/001 , H04W92/20
摘要： This is a mobile radio communication device having a base station and a mobile station that is connected by radio with this base station using time division multiple access, in which stable connection with the base station can be achieved and subsequently stable radio communication can be conducted. In the initial period of communication with the base station, the mobile station receives the signal from the base station asynchronously; under the condition that the field intensity of a signal transmitted by the base station exceeds a first threshold value, synchronization establishment control is performed in which a synchronization establishment operation is performed with the base station; after establishment of synchronization with the base station by the synchronization establishment operation, synchronization maintenance operation with this base station is performed under the condition that the field intensity from this base station exceeds a second threshold value that is smaller than the first threshold value.
摘要翻译：这是具有基站和移动台的移动无线电通信装置，该基站和移动台通过无线电与该基站使用时分多址连接，其中可以实现与基站的稳定连接，并且随后可以进行稳定的无线电通信。在与基站通信的初始阶段，移动台异步接收来自基站的信号; 在由基站发送的信号的场强超过第一阈值的条件下，执行与基站进行同步建立操作的同步建立控制; 在通过同步建立操作与基站建立同步之后，在来自该基站的场强超过比第一阈值小的第二阈值的条件下，与该基站进行同步维护操作。

89. 发明授权

US5640679A Method and an apparatus for handing off mobile station from a first to a second channel in a mobile communication system 失效
标题翻译：用于在移动通信系统中将移动台从第一信道切换到第二信道的方法和装置
公开(公告)号：US5640679A
公开(公告)日：1997-06-17
申请号：US612672
申请日：1996-03-08
申请人： Nils Patrik Lundqvist , Claes H.ang.kan Andersson
发明人： Nils Patrik Lundqvist , Claes H.ang.kan Andersson
IPC分类号： H04B7/26 , H04J3/06 , H04W36/06 , H04W36/08 , H04W56/00 , H04J3/16
CPC分类号： H04W36/0094 , H04B7/2684 , H04J3/0682 , H04W36/06 , H04W56/00
摘要： In a mobile communication system, a method and an apparatus for handing off a mobile station from a first channel on a serving base station to a second channel on a target base station, the mobile station transmitting at a first transmission phase on the first channel, the second channel being ready to take over the communication with the mobile station transmitting at a second transmission phase. A device for determining a time offset is provided in the target base station and is adapted to tune in to the mobile station for determining, prior to a handoff, the time offset between the first transmission phase and the second transmission phase. Also, a device is provided for shifting, upon handoff, the transmission phase of the mobile station by the determined time offset relative to the first transmission phase.
摘要翻译：在移动通信系统中，移动台将移动台从服务基站的第一信道切换到目标基站的第二信道的方法和装置，移动台在第一信道上以第一发送阶段发送，第二信道准备好接收与在第二传输阶段发送的移动台的通信。用于确定时间偏移的装置被提供在目标基站中，并且适于调谐到移动台，以在切换之前确定第一传输阶段和第二传输阶段之间的时间偏移。而且，提供了一种装置，用于在切换时将移动台的发送阶段相对于第一发送阶段移动确定的时间偏移。

90. 发明申请

WO2011075867A1 BASE STATION SYNCHRONISATION 审中-公开
标题翻译：基站同步
公开(公告)号：WO2011075867A1
公开(公告)日：2011-06-30
申请号：PCT/CN2009/001534
申请日：2009-12-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , LIAO, Jingyi
发明人： LIAO, Jingyi
IPC分类号： H04W56/00
CPC分类号： H04W56/00 , H04B7/2684 , H04W56/001 , H04W56/0055
摘要： According to the invention a mobile station (10) obtains the time delays of transmissions (T0, T1, T2) from a set of base stations in reaching the mobile station, determines a difference (t1, t2 ) between a group of the time delays and a reference time delay and transmits the time delay differences to base stations (14, 16) in the set having transmissions with time delays in the group via at least one link that is specific to the mobile station. A base station (14) receives the difference (t1) between its own transmission time delay and the reference time delay, compares the difference with a time range and corrects the timing of its transmissions if the difference is outside of the time range.
摘要翻译：根据本发明，移动站（10）从到达移动站的一组基站获得传输（T0，T1，T2）的时间延迟，确定一组时间延迟之间的差（t1，t2）和参考时间延迟，并且通过至少一个特定于移动站的链路，将具有时间延迟的传输的组中的基站（14,16）发送到时间延迟差。基站（14）接收其自身的发送时间延迟与基准时间延迟之间的差（t1），将该差与时间范围进行比较，如果该差在时间范围之外，则校正其发送的定时。

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