公开(公告)号：EP2637442B1

公开(公告)日：2018-06-13

申请号：EP13162741.6

申请日：2009-03-19

申请人： Interdigital Patent Holdings, Inc.

发明人： Mukherjee, Rajat, P. ,  Sammour, Mohammed ,  Somasundaram, Shankar ,  Livet, Catherine M. ,  Olvera-Hernandez, Ulises

IPC分类号： H04W36/00 ,  H04W80/10

CPC分类号： H04W36/0022 ,  H04W36/0033 ,  H04W80/10

摘要： A method and apparatus are used to perform a Circuit Switched (CS) fallback in wireless communications. The Non-Access Stratum (NAS) of the apparatus determines whether to perform a CS fallback based on an Internet Protocol (IP) Multimedia Subsystem (IMS) registration status, and sends a service request indicating a request to perform the CS fallback when the WTRU is attached to a CS domain. The apparatus also includes an Access Stratum (AS) that receives the CS service request from the NAS, sends an indication of the CS service request in a Radio Resource Control (RRC) message to an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN), wherein the RRC message includes CS service information, and receives a handover conunand in response to the CS service request.

公开(公告)号：EP2600655A3

公开(公告)日：2013-07-10

申请号：EP13153801.9

申请日：2008-10-28

申请人： InterDigital Patent Holdings, Inc.

发明人： Somasundaram, Shankar ,  Pasad, Kalpendu R. ,  Wang, Jin

IPC分类号： H04W48/16 ,  H04W48/12

CPC分类号： H04W48/16 ,  H04W48/12

摘要： An apparatus for receiving system information updates includes a wireless transmit receive unit (WTRU) configured to receive a system frame number. The WTRU is also configured to receive system information messages in a modification period. The modification period has a boundary determined by the system frame number. The WTRU is configured to receive system information change notification after a first modification change boundary and determines that the system information is valid until a second modification change boundary.

公开(公告)号：EP2536188A1

公开(公告)日：2012-12-19

申请号：EP12184517.6

申请日：2008-10-22

申请人： INTERDIGITAL PATENT HOLDINGS, INC.

发明人： Somasundaram, Shankar ,  Mukherjee, Rajat P.

IPC分类号： H04W12/02 ,  H04W12/10

CPC分类号： H04W12/08 ,  H04W12/00 ,  H04W12/02 ,  H04W12/10 ,  H04W80/02

摘要： A method and apparatus performs processing of the non-access stratus (NAS) layer (layer 3) in long term evolution (LTE) wireless transmit/receive units (WTRUs), which allows the NAS protocol layer to route layer 3 messages to the correct NAS entity, and encode new NAS message types and information elements. A new architecture is presented that enables NAS security. When a NAS message is generated, a determination is made to whether or not to cipher, de-cipher and/or intergrity check the NAS message based on at least one of a protocol discriminator (PD) of the NAS message, an indicator field in a header of the NAS message, the type of the NAS message, a NAS security state variable, and an indication by an upper layer protocol. The NAS security state variable indicates whether NAS security is currently actove or not and may comprise one bit.

摘要翻译： 一种方法和装置在长期演进（LTE）无线发射/接收单元（WTRU）中执行非接入层（NAS）层（层3）的处理，其允许NAS协议层将层3消息路由到正确的 NAS实体，并对新的NAS消息类型和信息元素进行编码。 提出了一种支持NAS安全性的新架构。 当生成NAS消息时，根据NAS消息的协议鉴别器（PD）中的至少一个，确定是否对NAS消息进行加密，解密和/或整合检查， NAS消息的报头，NAS消息的类型，NAS安全状态变量以及上层协议的指示。 NAS安全状态变量指示NAS安全性当前是否动作，可能包含一位。

公开(公告)号：EP3709749A1

公开(公告)日：2020-09-16

申请号：EP20172055.4

申请日：2008-10-29

申请人： Interdigital Patent Holdings, Inc.

发明人： Pasad, Kalpendu R. ,  Somasundaram, Shankar ,  Wang, Jin

IPC分类号： H04W74/00 ,  H04W74/08

摘要： A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. Each of a plurality of wireless transmit/receive units (WTRUs) sends a random access request to a base station on an uplink RACH preamble. A RACH Response (Access Indication Channel, AICH, message), sent by the base station, is received by each WTRU. The received RACH response signal comprises a control portion (Physical downlink control channel, PDCCH), and a data portion QO (Physical downlink shared channel, PDSCH). The control signal portion of the RACH Response indicates the location of the RACH Response message portion. The RACH Response control signal comprises multiple control channel elements (CCE), where each Q WTRU is allocated a respective CCE to provide its unique RACH Response control signal. The WTRU is configured to locate its intended CCE from among the multiple CCEs sent by the base station. Blind decoding.

公开(公告)号：EP2672640A1

公开(公告)日：2013-12-11

申请号：EP13179140.2

申请日：2008-12-19

申请人： Interdigital Patent Holdings, Inc.

发明人： Somasundaram, Shankar ,  Nayeb Nazar, Shahrokh ,  Zhang, Guodong ,  Mukherjee, Rajat P.

IPC分类号： H04J11/00 ,  H04W48/20

CPC分类号： H04W4/08 ,  H04J11/0069 ,  H04W36/0072 ,  H04W36/08 ,  H04W48/10 ,  H04W48/20

摘要： A method and apparatus for selecting or reselecting a home Node-B (HNB), (i.e., a closed subscriber group (CSG) cell), among cells having colliding physical layer signals are disclosed. Once the identity (ID) of an HNB is determined, measurements needed to support cell selection or reselection are performed. A broadcast channel that broadcasts an HNB ID is detected and synchronized to, and information obtained from the broadcast channel is forwarded to a non-access stratum (NAS). The broadcasted HNB ID is checked against an HNB white-list provided by the NAS to determine whether the HNB is suitable for a wireless transmit/receive unit (WTRU). The WTRU selects the HNB to camp on, or changes from a cell currently serving the WTRU to the HNB if it is determined to be more suitable than the current serving cell.

摘要翻译： 一种用于选择或重选具有碰撞物理层信号单元当中的家庭节点B（HNB），（即，封闭用户组（CSG）小区）的方法和装置游离缺失光盘。 一旦HNB的身份（ID）是确定性的开采，测量根据需要进行小区选择或重选来支持。 广播信道广播在HNB ID没有被检测和同步到，和从广播信道获得的信息被转发到非接入层（NAS）。 广播的HNB ID被检查针对在由NAS提供给确定性矿HNB白名单是否HNB是适于在无线发射/接收单元（WTRU）。 该WTRU选择HNB驻留在，或从当前服务所述WTRU到HNB如果是确定性的开采为比当前服务小区更适合的细胞的变化。

公开(公告)号：EP2613603A2

公开(公告)日：2013-07-10

申请号：EP13152150.2

申请日：2010-04-23

申请人： InterDigital Patent Holdings, Inc.

发明人： Pelletier, Ghyslain ,  Terry, Stephen E. ,  Marinier, Paul ,  Zhang, Guodong ,  Wang, Peter Shaomin ,  Wang, Jin ,  Somasundaram, Shankar ,  Gauvreau, Jean-Louis ,  Dennean, Charles ,  Bala, Erdem ,  Haghighat, Afshin

IPC分类号： H04W74/08

CPC分类号： H04W74/0833 ,  H04L27/2613 ,  H04W72/042 ,  H04W74/002 ,  H04W74/004 ,  H04W74/0866

摘要： Method and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration sct by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers.

摘要翻译： 公开了在多载波无线通信中随机接入的方法和装置。 提供了用于物理随机接入信道（PRACH）资源信令，PRACH资源处理，前导码和PRACH资源选择，随机接入响应（RAR）接收，前导码重传以及后续消息的发送和接收的方法和装置。 一种用于通过向所允许的RACH配置集合添加UL载波来维护允许的多载波上行链路（UL）随机接入信道（RACH）配置sct的方法，只要发生触发事件并且使用允许的RACH配置来执行随机接入（RA）过程 组。 一种用于通过确定一组可用UL载波并从所述可用UL载波集合中选择UL载波来在多载波无线通信中发送数据的方法。

公开(公告)号：EP2600656A2

公开(公告)日：2013-06-05

申请号：EP13153807.6

申请日：2008-10-28

申请人： InterDigital Patent Holdings, Inc.

发明人： Somasundaram, Shankar ,  Pasad, Kalpendu R. ,  Wang, Jin

IPC分类号： H04W48/16 ,  H04W48/12

CPC分类号： H04W48/16 ,  H04W48/12

摘要： An apparatus for receiving system information updates includes a wireless transmit receive unit (WTRU) configured to receive a system frame number. The WTRU is also configured to receive system information messages in a modification period. The modification period has a boundary determined by the system frame number. The WTRU is configured to receive system information change notification after a first modification change boundary and determines that the system information is valid until a second modification change boundary.

摘要翻译： 一种用于接收系统信息更新的设备包括：无线发射接收单元（WTRU），其被配置为接收系统帧号。 WTRU还被配置为在修改周期中接收系统信息消息。 修改周期的边界由系统帧号确定。 WTRU被配置为在第一修改改变边界之后接收系统信息改变通知，并确定系统信息有效直到第二修改改变边界。

公开(公告)号：EP2600656B1

公开(公告)日：2014-12-31

申请号：EP13153807.6

申请日：2008-10-28

申请人： InterDigital Patent Holdings, Inc.

发明人： Somasundaram, Shankar ,  Pasad, Kalpendu R. ,  Wang, Jin

IPC分类号： H04W48/16 ,  H04W48/12

CPC分类号： H04W48/16 ,  H04W48/12

公开(公告)号：EP2637442A3

公开(公告)日：2014-05-14

申请号：EP13162741.6

申请日：2009-03-19

申请人： Interdigital Patent Holdings, Inc.

发明人： Mukherjee, Rajat, P. ,  Sammour, Mohammed ,  Somasundaram, Shankar ,  Livet, Catherine M. ,  Olvera-Hernandez, Ulises

IPC分类号： H04W36/00 ,  H04W80/10

CPC分类号： H04W36/0022 ,  H04W36/0033 ,  H04W80/10

摘要： A method and apparatus are used to perform a Circuit Switched (CS) fallback in wireless communications. The Non-Access Stratum (NAS) of the apparatus determines whether to perform a CS fallback based on an Internet Protocol (IP) Multimedia Subsystem (IMS) registration status, and sends a service request indicating a request to perform the CS fallback when the WTRU is attached to a CS domain. The apparatus also includes an Access Stratum (AS) that receives the CS service request from the NAS, sends an indication of the CS service request in a Radio Resource Control (RRC) message to an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN), wherein the RRC message includes CS service information, and receives a handover conunand in response to the CS service request.

公开(公告)号：EP2663132A1

公开(公告)日：2013-11-13

申请号：EP13178727.7

申请日：2008-12-08

申请人： Interdigital Patent Holdings, Inc.

发明人： Wang, Jin ,  Levy, Joseph S. ,  Terry, Stephen E. ,  Olvera-Hernandez, Ulises ,  Somasundaram, Shankar

IPC分类号： H04W52/14 ,  H04W52/24 ,  H04W52/36 ,  H04W52/50

CPC分类号： H04W52/242 ,  H04W24/08 ,  H04W52/146 ,  H04W52/245 ,  H04W52/246 ,  H04W52/247 ,  H04W52/36 ,  H04W52/50 ,  H04W74/0833

摘要： Methods and apparatus are disclosed for determining a physical uplink power level for transmissions on a physical uplink channel. In one embodiment, a random access channel (RACH) uplink message is transmitted. The RACH uplink message includes a RACH message power level and/or a downlink pathloss figure. A downlink message including a power offset value is received. The physical uplink power level is set for transmissions on the physical uplink channel based on the power offset value. In another embodiment, a RACH uplink message is transmitted and a downlink message including a relative power offset value is received. The physical uplink power level for transmissions on the physical uplink channel is then set based on the relative power offset value.

摘要翻译： 的方法和装置游离缺失盘确定性开采上的物理上行链路信道传输的物理上行链路功率电平。 在一个，实施例的随机接入信道（RACH）上行链路消息是反式mitted。 的RACH的上行链路消息包括RACH消息的功率电平和/或下行链路路径损耗数值。 被接收的下行链路消息，其包括功率偏移值。 物理上行链路功率电平被设置为基于所述功率偏移值在物理上行链路信道传输。 在另一个实施方式的RACH的上行链路消息是包括一个相对功率接收到的偏移值反mitted和下行链路消息。 用于在物理上行链路信道传输的物理上行链路功率电平然后被设定基于所述相对功率偏移值。