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

US06418137B1 Transmitted signal power control in cellular communications systems 有权
标题翻译：蜂窝通信系统中的传输信号功率控制
公开(公告)号：US06418137B1
公开(公告)日：2002-07-09
申请号：US09210364
申请日：1998-12-14
申请人： Chandra Sekhar Bontu , Shavantha Kularatna , N. Gamini Senarath , Karl D. Mann , Peter Anthony Barany
发明人： Chandra Sekhar Bontu , Shavantha Kularatna , N. Gamini Senarath , Karl D. Mann , Peter Anthony Barany
IPC分类号： H04B7212
CPC分类号： H04W52/367 , H04W52/24 , H04W52/362
摘要： A base station produces a power control bit dependent on SNR (signal-to-noise ratio) determined for each time slot of a signal received from a remote station of a cellular communications system. If the SNR exceeds an upper threshold by an upper threshold margin, the power control bit is a binary 0 and the upper threshold margin is increased; if the SNR is below a lower threshold by a lower threshold margin, the power control bit is a binary 1 and the lower threshold margin is increased; and otherwise the power control bit alternates its binary value for successive time slots and setting the threshold margins are reset. In the remote station, the power control bits are accumulated by a bidirectional counter and the transmitted signal power is only changed up or down in response to the count exceeding a respective threshold. The process can also or instead be used for the opposite transmission direction, and provides fast power control using a single bit per time slot in a manner that is tolerant of errors in the transmitted power control bits.
摘要翻译：基站产生取决于从蜂窝通信系统的远程站接收的信号的每个时隙确定的SNR（信噪比）的功率控制位。如果SNR超过上限阈值上限阈值，则功率控制位为二进制0，上限阈值增加; 如果SNR低于阈值下限阈值，则功率控制位为二进制1，下限阈值增加; 否则功率控制位会对连续时隙交替其二进制值，并且设置阈值余量被重置。在远程站中，功率控制位由双向计数器累积，并且响应于超过相应阈值的计数，发送的信号功率仅被上升或下降。该过程也可以或替代地用于相反的传输方向，并且以容纳发射功率控制位中的错误的方式提供使用每个时隙的单个位的快速功率控制。

2. 发明授权

US06711406B1 Apparatus, and associated method, for facilitating rapid mode changeover of a mobile station 失效
标题翻译：装置和相关方法，用于促进移动台的快速模式切换
公开(公告)号：US06711406B1
公开(公告)日：2004-03-23
申请号：US09564160
申请日：2000-05-03
申请人： Raino Lintulampi , Kari Jyrkkä , Heikki Päivike , Shavantha Kularatna , Pekka Mottonen
发明人： Raino Lintulampi , Kari Jyrkkä , Heikki Päivike , Shavantha Kularatna , Pekka Mottonen
IPC分类号： H04Q720
CPC分类号： H04W68/12 , H04W76/20
摘要： Apparatus, and an associated method, facilitates changeover of mode of operation of a mobile station operable in a cellular communication system. Changeover of the mode of operation of the mobile station is required when the mobile station is operated in the packet mode and a circuit-switched call is to be terminated at the mobile station. A page is transmitted to the mobile station which includes an allocation of time during which a response to a page forming a request to suspend the packet mode of operation is to be generated.
摘要翻译：装置和相关联的方法有助于在蜂窝通信系统中可操作的移动台的操作模式的切换。当移动台以分组模式操作并且在移动台终止电路交换呼叫时，需要切换移动台的操作模式。一个页面被发送到移动站，该移动站包括一个时间的分配，在该时间段期间，将产生对形成暂停分组操作模式的请求的页面的响应。

3. 发明授权

US06944146B1 Communications of signaling in a mobile communications system with reduced interference 有权
标题翻译：减少干扰的移动通信系统中的信令通信
公开(公告)号：US06944146B1
公开(公告)日：2005-09-13
申请号：US09366849
申请日：1999-08-04
申请人： Peter A. Barany , Shavantha Kularatna , Eric N. Johnson , Shamim Akbar Rahman
发明人： Peter A. Barany , Shavantha Kularatna , Eric N. Johnson , Shamim Akbar Rahman
IPC分类号： H04W72/04 , H04Q7/24
CPC分类号： H04W72/0406
摘要： A method and apparatus for use in a mobile communications system having a plurality of cell segments includes allocating a plurality of channels to perform communications and defining a plurality of time groups. A channel reuse pattern is provided that is based on the plurality of channel frequencies and the plurality of time groups. Control channels are carried in a different time slot of a frame in each time group. Predetermined time slots are allocated as guard periods to reduce likelihood of interference of signaling due to overlap of time slots in neighboring cell segments. In one arrangement, three channel frequencies are allocated. Further, three or four time groups are defined to provide an effective 3/9 or 4/12 channel reuse pattern. In each time group, control channels are carried in odd time slots of a time-division multiple access (TDMA) frame. The even time slots are employed as guard periods to reduce likelihood of interference caused by overlapping time slots, which may occur in relatively large cells because of propagation delays in communications between mobile units and base stations.
摘要翻译：一种在具有多个小区段的移动通信系统中使用的方法和装置包括分配多个信道以执行通信并定义多个时间组。提供了基于多个信道频率和多个时间组的信道重用模式。控制信道在每个时间组中的帧的不同时隙中携带。分配预定时隙作为保护周期，以减少由于相邻小区段中的时隙的重叠引起的信令干扰的可能性。在一种布置中，分配三个信道频率。此外，三或四个时间组被定义为提供有效的3/9或4/12通道重用模式。在每个时间组中，控制信道被携带在时分多址（TDMA）帧的奇数时隙中。采用偶数时隙作为保护周期，以减少由于移动单元和基站之间的通信中的传播延迟而在相对大的小区中发生的重叠时隙造成的干扰的可能性。

4. 发明授权

US07307968B2 Method and system for communicating data between a mobile communications architecture and a packet switched architecture 有权
标题翻译：用于在移动通信体系结构和分组交换架构之间传送数据的方法和系统
公开(公告)号：US07307968B2
公开(公告)日：2007-12-11
申请号：US09784954
申请日：2001-02-16
申请人： Tuomas Niemela , Shkumbin Hamiti , Risto Mononen , Shavantha Kularatna
发明人： Tuomas Niemela , Shkumbin Hamiti , Risto Mononen , Shavantha Kularatna
IPC分类号： H04Q7/00
CPC分类号： H04W92/14 , H04L12/4633 , H04W28/06 , H04W80/00
摘要： The method and system provides a data packet encapsulated with protocol data according to an embodiment of the invention. A data packet for communication may be associated with a TLLI and a NSAPI identifying a communications path between a BSS and a SGSN. The method and system provides a BVC associated with the BSS and the SGSN and a NSE that provides communication service to the BVC over NS-VC. The BVC, NSE and NS-VC may be associated with the TLLI and NSAPI. The encapsulated protocol data comprises UDP and IP. UDP provides UDP ports associated with NS-VC. The UDP ports identified as data designated as either real time or non-real time services. IP provides an IP address identifying the NSE providing service to the BVC. The data packet encapsulated with UDP and IP provides for more efficient, flexible and reliable communications between a BSS and a SGSN.
摘要翻译：该方法和系统提供根据本发明实施例的用协议数据封装的数据分组。用于通信的数据分组可以与标识BSS和SGSN之间的通信路径的TLLI和NSAPI相关联。该方法和系统提供与BSS和SGSN相关联的BVC以及通过NS-VC向BVC提供通信服务的NSE。 BVC，NSE和NS-VC可能与TLLI和NSAPI相关联。封装的协议数据包括UDP和IP。 UDP提供与NS-VC相关联的UDP端口。标识为被指定为实时或非实时服务的数据的UDP端口。 IP提供了一个IP地址，用于标识向BVC提供服务的NSE。用UDP和IP封装的数据包提供了BSS和SGSN之间更有效，灵活和可靠的通信。

5. 发明授权

US06463073B1 Slot structure and method of power control for use in a TDMA network 有权
标题翻译：功率控制的槽结构和方法用于TDMA网络
公开(公告)号：US06463073B1
公开(公告)日：2002-10-08
申请号：US09216993
申请日：1998-12-21
申请人： Chandra S. Bontu , Shavantha Kularatna , Shamim A. Rahman , Yonghai Gu , Peter Barany
发明人： Chandra S. Bontu , Shavantha Kularatna , Shamim A. Rahman , Yonghai Gu , Peter Barany
IPC分类号： H04B7212
CPC分类号： H04W52/58
摘要： The invention is a novel slot structure and method of transmitting data at a controllable power level. The slot comprises a header, a DATA field adjacent the header and a ramp interval adjacent the DATA field. The method consists of transmitting the entire slot at a sufficiently high power when the DATA field is occupied by data traffic or control information but to lower the power during transmission of the DATA field when the slot is a null slot. In the latter case, a gradual decrease of the transmitted power is effected during the first few symbols of the DATA field, whereas the power is brought back to a higher level during the ramp interval. The new power level may be higher or lower than the initial power level, depending on the destination mobile unit associated with the following slot.
摘要翻译：本发明是一种以可控功率电平发送数据的新颖的时隙结构和方法。该时隙包括报头，与报头相邻的DATA字段以及与DATA字段相邻的斜坡间隔。该方法包括当DATA字段被数据业务或控制信息占用时以足够高的功率发送整个时隙，但是当该时隙是空时隙时，在DATA字段的传输期间降低功率。在后一种情况下，在DATA字段的前几个符号期间实现发射功率的逐渐降低，而在斜坡间隔期间功率被恢复到较高的电平。新功率电平可以高于或低于初始功率电平，这取决于与下一个插槽相关联的目标移动单元。

6. 发明授权

US07035213B2 Method and packet switched communication network with enhanced session establishment 失效
标题翻译：方法和分组交换通信网络，增强会话建立
公开(公告)号：US07035213B2
公开(公告)日：2006-04-25
申请号：US10283236
申请日：2002-10-30
申请人： Timothy L. Moran , Markus Isomäki , Sreenivas Addagatla , Kaiser Chen , Shavantha Kularatna , Basavarai Patil
发明人： Timothy L. Moran , Markus Isomäki , Sreenivas Addagatla , Kaiser Chen , Shavantha Kularatna , Basavarai Patil
IPC分类号： H04L12/26 , G06F15/16
CPC分类号： H04L65/1006 , H04L29/06 , H04L29/06027 , H04L65/1069 , H04L69/327
摘要： The invention is a method of determining in at least one communication network if a session should be established in at least one communication network containing a plurality of session established entities, a method for determining if a session should be established with caller user equipment requesting the session, and in at least one communication network, a method for determining if a session should be established from caller user equipment at at least one communication network. A method of determining in at least one communication network if a session should be established in accordance with the invention includes processing a request from caller user equipment (114′) to establish a session with callee user equipment (114) in the at least one communication network (102 and 104) with a session establishment entity (108, 110, 112 and 114) to determine if at least a portion of the request (140 and 142) exceeds a size limit and establishing the session (146) if at least the portion of the request is determined by the session establishment entity to not exceed the size limit.
摘要翻译：本发明是一种在至少一个通信网络中确定是否应在包含多个会话建立实体的至少一个通信网络中建立会话的方法，确定是否应该与请求会话的主叫用户设备建立会话的方法，并且在至少一个通信网络中，确定是否应当在至少一个通信网络上的主叫用户设备建立会话的方法。一种在至少一个通信网络中确定是否应当根据本发明建立会话的方法包括处理来自主叫用户设备（114'）的请求，以在所述至少一个通信中建立与被叫用户设备（114）的会话网络（102和104）与会话建立实体（108,110,112和114）确定所述请求（140和142）的至少一部分是否超过大小限制并且建立所述会话（146），如果至少请求的部分由会话建立实体确定为不超过大小限制。

7. 发明授权

US06594252B1 Locating control signals in a mobile communications system 失效
标题翻译：在移动通信系统中定位控制信号
公开(公告)号：US06594252B1
公开(公告)日：2003-07-15
申请号：US09368217
申请日：1999-08-04
申请人： Peter A. Barany , Shavantha Kularatna , Shamim Akbar Rahman
发明人： Peter A. Barany , Shavantha Kularatna , Shamim Akbar Rahman
IPC分类号： H04B7212
CPC分类号： H04W48/12 , H04W68/025
摘要： A mobile communications system includes a first link and a second link (e.g., a circuit-switched link and a packet-switched link). When a mobile unit is initialized in the mobile communications system, it identifies a first control signal, such as the digital control channel (DCCH) of an IS-136 system, of the first link. From information associated with the first control signal, the mobile unit determines the existence of the second link (e.g., according to 136 HS). From information identifying a current frame structure in the first link, a pointer to the current frame structure of the second link can be derived.
摘要翻译：移动通信系统包括第一链路和第二链路（例如，电路交换链路和分组交换链路）。当移动单元在移动通信系统中被初始化时，它识别第一个链路的第一控制信号，例如IS-136系统的数字控制信道（DCCH）。从与第一控制信号相关联的信息，移动单元确定第二链路的存在（例如，根据136HS）。从识别第一链路中的当前帧结构的信息，可以导出指向第二链路的当前帧结构的指针。

8. 发明授权

US06445745B1 Phase encoding methods for handling multiple phase modulated signals on a single channel 有权
标题翻译：在单个通道上处理多个相位调制信号的相位编码方法
公开(公告)号：US06445745B1
公开(公告)日：2002-09-03
申请号：US09306434
申请日：1999-05-06
申请人： Chandra S. Bontu , Yonghai Gu , Shavantha Kularatna , Peter Barany
发明人： Chandra S. Bontu , Yonghai Gu , Shavantha Kularatna , Peter Barany
IPC分类号： H04L2718
CPC分类号： H04L27/18 , H04L27/0008
摘要： A method for phase encoding DPSK and N-PSK which maintains phase continuity and which does not require any reference symbols when using N-PSK. A sequence of known DPSK phases are encoded with respect to an initial phase. The N-PSK phases are then all offset by this same initial phase. The known DPSK phases can be used at a receiver to determine a sum consisting of the initial phase and any further phase shift introduced by the channel, and this sum is used to decode the unknown N-PSK phases. The method is more generally applicable to any case where a switch between a phase encoding method which requires an absolute phase reference and a phase encoding method which does not have an absolute phase reference is to be implemented on a single carrier or channel.
摘要翻译：一种用于相位编码的方法，用于维持相位连续性并且在使用N-PSK时不需要任何参考符号的DPSK和N-PSK。已知的DPSK相位序列相对于初始相位进行编码。然后，N-PSK相位都被相同的初始相位偏移。已知的DPSK相位可以在接收机处使用以确定由初始相位和由信道引入的任何另外的相移组成的和，并且该和用于解码未知的N-PSK相位。该方法更通常适用于在单载波或信道上实现需要绝对相位基准的相位编码方法和不具有绝对相位基准的相位编码方法之间的切换的情况。

9. 发明授权

US07215958B2 Relocation method, system and network element 失效
标题翻译：搬迁方法，系统和网元
公开(公告)号：US07215958B2
公开(公告)日：2007-05-08
申请号：US09932089
申请日：2001-08-20
申请人： Andras Kovacs , Shavantha Kularatna , Atte Länsisalmi , Gabriel Ramos , Syed Hossain , Pekka Korja , Raquel Sanchez , Sanna Mäenpää
发明人： Andras Kovacs , Shavantha Kularatna , Atte Länsisalmi , Gabriel Ramos , Syed Hossain , Pekka Korja , Raquel Sanchez , Sanna Mäenpää
IPC分类号： H04Q7/20
CPC分类号： H04W36/10
摘要： The present invention relates to a relocation method, system and network element for changing a serving radio resource control entity After an initial operating state in which a user equipment (30) has radio links with a serving network element (20) and a drift network element (21) supporting said serving network element (20) with a wireless connection, the serving network element (20) transmits a relocation-specific information to a target network element (22). Based on the relocation-specific information, the target network element (22) establishes a link to the drift network element (21), such that the drift network element (21) can receive user traffic from both the serving network element (20) and the target network element (20). Then, the radio resource control is relocated to the target network element (20). The relocation-specific information may comprise an identifier or a list of identifiers of drift network elements. Thus, existing soft handover techniques can be enhanced by allowing a user plane connection to be maintained with drift network elements. Thereby, any amount of drift network elements can be kept, with improved radio performance as a consequence.
摘要翻译：本发明涉及一种用于改变服务无线电资源控制实体的重定位方法，系统和网元。在用户设备（30）具有与服务网元（20）的无线链路的初始操作状态和漂移网元（21），通过无线连接支持所述服务网元（20），所述服务网元（20）向目标网元（22）发送重定位特定信息。基于重定位特定信息，目标网元（22）建立到漂移网元（21）的链路，使得漂移网元（21）可以从服务网元（20）和目标网元（20）。然后，无线资源控制被重定位到目标网元（20）。重定位特定信息可以包括漂移网络元件的标识符或标识符列表。因此，可以通过允许用漂移网络元件来维护用户平面连接来增强现有的软切换技术。因此，可以保持任何数量的漂移网络元件，结果改善了无线电性能。

10. 发明授权

US06904034B2 Method and system for communicating data between a mobile communications architecture and a packet switched architecture, each utilizing a different mode of communication 有权
标题翻译：用于在移动通信体系结构和分组交换架构之间传送数据的方法和系统，每种方式和系统利用不同的通信模式
公开(公告)号：US06904034B2
公开(公告)日：2005-06-07
申请号：US09896647
申请日：2001-06-29
申请人： Shavantha Kularatna , Shkumbin Hamiti , Tuomas Niemela , Basavaraj Patil , Rayadurgam Ravikanth
发明人： Shavantha Kularatna , Shkumbin Hamiti , Tuomas Niemela , Basavaraj Patil , Rayadurgam Ravikanth
IPC分类号： H04W92/14 , H04Q7/24
CPC分类号： H04L29/12377 , H04L12/4633 , H04L61/2517 , H04L69/08 , H04L69/16 , H04L69/164 , H04W76/12 , H04W80/06 , H04W92/14
摘要： The invention provides a method and system for allowing communication between a BSS and SGSN, each having an NS-VC table and utilizing a different mode of communication. For example, a BSS may utilize associating UDP with NSE and IP with NS-VC and the SGSN may utilize associating UDP with NS-VC and IP with NSE. The method and system provides for the construction of an NS-VC table correlating the NS-VC table of the BSS and SGSN. Therefore, the method and system provides for the conversion of a data packet having UDP associated with NS-VC and IP associated with NSE to UDP having association with NSE and IP having association with NS-VC and vice versa. An NS-VC table may be constructed from information provided from a negotiations procedure or normal communications. The constructed NS-VC table allows for communications between the mobile communications architecture and the packet switched architecture, without requiring compatible utilization of UDP and IP.
摘要翻译：本发明提供了一种用于允许BSS和SGSN之间的通信的方法和系统，每个SGSN具有NS-VC表并且利用不同的通信模式。例如，BSS可以使用将NSE和IP与NS-VC相关联，并且SGSN可以利用NS-VC和IP与NSE相关联的UDP。该方法和系统提供了与BSS和SGSN的NS-VC表相关联的NS-VC表的构建。因此，该方法和系统提供将具有与NS-VC相关联的UDP和与NSE相关联的IP的数据分组转换为具有与NS-VC相关联的NSE和IP相关联的UDP，反之亦然。可以从协商程序或正常通信提供的信息构建NS-VC表。构建的NS-VC表允许移动通信架构和分组交换架构之间的通信，而不需要UDP和IP的兼容利用。

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