公开(公告)号：US09226245B2

公开(公告)日：2015-12-29

申请号：US13632589

申请日：2012-10-01

Applicant: Konstantinos Dimou ,  Kumar Balachandran ,  Havish Koorapaty ,  Chester Sungchung Park

Inventor： Konstantinos Dimou ,  Kumar Balachandran ,  Havish Koorapaty ,  Chester Sungchung Park

IPC: H04W52/28 ,  H04W52/24 ,  H04W52/36 ,  H04W52/14

CPC classification number: H04W52/28 ,  H04W52/146 ,  H04W52/242 ,  H04W52/243 ,  H04W52/285 ,  H04W52/288 ,  H04W52/367

Abstract: An access node is configured to adapt uplink power control procedures based on the device attributes of a wireless device. The device attributes may, for example be the mobility, energy profile, or characteristic traffic pattern of the wireless device. The adaptive uplink power control procedure may be used to minimize or reduce power consumption, to improve resource utilization efficiency, or to reduce interference levels.

Abstract translation: 接入节点被配置为基于无线设备的设备属性来适配上行链路功率控制过程。 设备属性可以例如是无线设备的移动性，能量简档或特征业务模式。 可以使用自适应上行链路功率控制过程来最小化或降低功耗，提高资源利用效率或降低干扰水平。

公开(公告)号：US20150043461A1

公开(公告)日：2015-02-12

申请号：US14380089

申请日：2012-02-21

Applicant: Joachim Sachs ,  Kumar Balachandran ,  Konstantinos Dimou ,  Erik Eriksson ,  Michael Meyer ,  Johan Rune ,  Anders Wallén ,  Henning Wiemann ,  Leif Wilhelmsson

Inventor： Joachim Sachs ,  Kumar Balachandran ,  Konstantinos Dimou ,  Erik Eriksson ,  Michael Meyer ,  Johan Rune ,  Anders Wallén ,  Henning Wiemann ,  Leif Wilhelmsson

IPC: H04W72/12 ,  H04W52/02

CPC classification number: H04W72/1205 ,  H04W52/0216 ,  H04W72/12 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/21

Abstract: A node (100; 300) of a mobile network is responsible for scheduling transmissions of data blocks between the mobile network and a terminal device (200, 200′). The node (100; 300) may for example be a base station (100) or a control node (300) of the mobile network. The node (100; 300) determines a processing time required by the terminal device (200; 200′) for processing signals for transmission of one of the data blocks. The processing time is determined from a plurality of supported processing times. On the basis of the determined processing time, the node (100; 300) schedules the transmission of the data block. The terminal device (200, 200′) may provide control data for determining the processing time to the node (100; 300).

Abstract translation: 移动网络的节点（100; 300）负责调度移动网络和终端设备（200,200'）之间的数据块的传输。 节点（100; 300）可以例如是移动网络的基站（100）或控制节点（300）。 节点（100; 300）确定终端设备（200; 200'）所需的用于处理用于发送数据块之一的信号的处理时间。 处理时间由多个支持的处理时间确定。 在确定的处理时间的基础上，节点（100; 300）调度数据块的传输。 终端设备（200,200'）可以提供用于确定到节点（100; 300）的处理时间的控制数据。

公开(公告)号：US08750240B2

公开(公告)日：2014-06-10

申请号：US12561711

申请日：2009-09-17

Applicant: Kumar Balachandran ,  Havish Koorapaty ,  Tripura Ramesh

Inventor： Kumar Balachandran ,  Havish Koorapaty ,  Rajaram Ramesh

IPC: H04W4/00

CPC classification number: H04L5/006 ,  H04B7/0413 ,  H04B7/0669 ,  H04L5/0007 ,  H04L5/0037 ,  H04W4/06 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/046 ,  H04W88/06

Abstract: Methods and apparatus for allocating time-frequency resources to mobile terminals in a wireless communications system in which time-frequency resources may be selectively used according to a first multiple-input multiple-output (MIMO) transmission scheme or a second MIMO transmission scheme that differs from the first MIMO transmission scheme. An exemplary method comprises, for at least a first scheduling instance, identifying a first group of mobile terminals corresponding to the first MIMO transmission scheme and a second group of mobile terminals corresponding to the second MIMO transmission scheme, allocating time-frequency resources in a first pre-determined time-frequency zone exclusively to mobile terminals belonging to the first group, and allocating time-frequency resources in one or more additional pre-determined time-frequency zones to one or more mobile terminals belonging to the second group. This method may be implemented in a base station of a WiMAX system, for example.

Abstract translation: 用于在无线通信系统中向移动终端分配时间频率资源的方法和装置，其中可以根据不同的第一多输入多输出（MIMO）传输方案或第二MIMO传输方案来选择性地使用时间频率资源 从第一MIMO传输方案。 一种示例性方法包括：对于至少第一调度实例，识别对应于第一MIMO传输方案的第一组移动终端和对应于第二MIMO传输方案的第二组移动终端， 预定的时频区域专用于属于第一组的移动终端，以及将属于第二组的一个或多个移动终端的一个或多个附加的预定时频区域中的时间频率资源分配。 例如，该方法可以在WiMAX系统的基站中实现。

公开(公告)号：US08726137B2

公开(公告)日：2014-05-13

申请号：US12696141

申请日：2010-01-29

Applicant: Kumar Balachandran ,  Tsao-Tsen Chen ,  Havish Koorapaty ,  Tripura Ramesh

Inventor： Kumar Balachandran ,  Tsao-Tsen Chen ,  Havish Koorapaty ,  Rajaram Ramesh

IPC: H03M13/03

CPC classification number: H03M13/235 ,  H03M13/2957 ,  H03M13/413 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6544

Abstract: A convolutional encoder (50) comprises an expurgation unit (22) and a first component convolutional encoder section (24). A convolutional turbo encoder (20) comprises an expurgation unit (22); a first component convolutional encoder section (24); a second component convolutional encoder section (26); and an interleaver (28). For both the convolutional encoder (50) and the expurgating convolutional turbo encoder (20) the expurgation unit (22) inserts predetermined values at selected bit positions of an input bit sequence and thereby provide an expurgated input bit sequence. A lower rate convolutional code is obtained from a higher rate code via expurgation.

Abstract translation: 卷积编码器（50）包括消除单元（22）和第一组件卷积编码器部分（24）。 卷积涡轮编码器（20）包括消除单元（22）; 第一组件卷积编码器部分（24）; 第二组件卷积编码器部分（26）; 和交织器（28）。 对于卷积编码器（50）和剥离卷积涡轮编码器（20），消除单元（22）在输入位序列的选定位位置处插入预定值，从而提供一个被消除的输入位序列。 较低速率的卷积码通过较高的速率代码获得。

公开(公告)号：US08527843B2

公开(公告)日：2013-09-03

申请号：US13281291

申请日：2011-10-25

Applicant: Rajaram Ramesh ,  Jung-Fu Thomas Cheng ,  Havish Koorapaty ,  Kumar Balachandran

Inventor： Rajaram Ramesh ,  Jung-Fu Thomas Cheng ,  Havish Koorapaty ,  Kumar Balachandran

IPC: H03M13/00

CPC classification number: H03M13/093 ,  H03M13/09 ,  H03M13/2948 ,  H03M13/2951 ,  H03M13/2975 ,  H03M13/3753 ,  H03M13/6525 ,  H04L1/0051 ,  H04L1/0061 ,  H04L1/0083 ,  H04L1/18

Abstract: The iterative decoding of blocks may be continued or terminated based on CRC checks. In an example embodiment, one iteration of an iterative decoding process is performed on a block whose information bits are covered by a CRC. The iterative decoding process is stopped if the CRC checks for a predetermined number of consecutive iterations. In another example embodiment, a decoding iteration is performed on a particular sub-block of multiple sub-blocks of a transport block, which includes a single CRC over an entirety of the transport block. The CRC is checked using decoded bits obtained from the decoding iteration on the particular sub-block and decoded bits obtained from previous decoding iterations on other sub-blocks of the multiple sub-blocks. The decoding iteration is then performed on a different sub-block if the CRC does not check. Also, the decoding iterations for the sub-blocks may be terminated if the CRC checks.

公开(公告)号：US08447321B2

公开(公告)日：2013-05-21

申请号：US12211259

申请日：2008-09-16

Applicant: Kumar Balachandran ,  Havish Koorapaty ,  Rajaram Ramesh

Inventor： Kumar Balachandran ,  Havish Koorapaty ,  Rajaram Ramesh

IPC: H04W24/00

CPC classification number: H04W84/12 ,  H04W24/00 ,  H04W48/08 ,  H04W64/00

Abstract: A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined intervals or conditions, the system determines a current position of the mobile terminal, and determines whether the current position of the mobile terminal is close enough to a stored WLAN position for the mobile terminal to connect to the WLAN corresponding to the stored WLAN position. If so, a notification is sent to the mobile terminal indicating that the mobile terminal is within range of the identified WLAN. The mobile terminal then scans for the identified WLAN.

Abstract translation: 一种当移动终端连接到蜂窝网络时找到无线局域网（WLAN）的系统和方法。 与在蜂窝网络的覆盖区域内操作的每个WLAN相关联的位置被存储在数据库中。 在预定义的间隔或条件下，系统确定移动终端的当前位置，并且确定移动终端的当前位置是否足够接近存储的WLAN位置，以便移动终端连接到与存储的WLAN位置对应的WLAN 。 如果是，则向移动终端发送指示移动终端在所识别的WLAN的范围内的通知。 移动终端然后扫描所识别的WLAN。

公开(公告)号：US20120134327A1

公开(公告)日：2012-05-31

申请号：US13223599

申请日：2011-09-01

Applicant: Kumar BALACHANDRAN ,  Havish Koorapaty ,  Rajaram Ramesh

Inventor： Kumar BALACHANDRAN ,  Havish Koorapaty ,  Rajaram Ramesh

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04L1/08 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1887 ,  H04W72/0406

Abstract: A wireless telecommunications network supplies a semi-persistent resource that a wireless station can use for special purposes (such as a retransmission of packets for ARQ purposes or a control signal. The semi-persistent resource can be allocated by the system to other terminals if, e.g., a retransmission is not required. Since a retransmission is generally performed in response to a NACK received from a base station, the NACK may itself serve as a token that permits the wireless station to use the semi-persistent allocation. Thus, the technology includes, e.g., a method for resource allocation on a semi-persistent basis and efficient signaling for the usage of such allocation.

Abstract translation: 无线电信网络提供无线站可以用于特殊目的的半持久资源，例如用于ARQ目的的分组重传或控制信号。 如果不需要再传送，则半持久资源可以由系统分配给其他终端。 由于通常响应于从基站接收到的NACK来执行重传，所以NACK本身可以用作允许无线站使用半持久分配的令牌。 因此，该技术包括例如在半持久基础上的资源分配方法和用于这种分配的使用的有效信令。

公开(公告)号：US08098623B2

公开(公告)日：2012-01-17

申请号：US12138000

申请日：2008-06-12

Applicant: Rajaram Ramesh ,  Kumar Balachandran ,  Havish Koorapaty

Inventor： Rajaram Ramesh ,  Kumar Balachandran ,  Havish Koorapaty

IPC: H04W4/00

CPC classification number: H04L27/0008 ,  H04L1/0083 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0091 ,  H04L25/0204

Abstract: A radio access network (RAN) (20) comprise a base station (28) and a wireless terminal (30). The base station 28 comprises a transceiver (38) and a frame handler (40), the wireless terminal (30) comprises a transceiver (48) and a wireless terminal frame handler (50). The frame handlers (40, 50) handle a enhanced frame F having enhanced frame structure. At least a downlink portion of the frame is formatted and handled in a manner whereby the frame can be perceived as a first format type of frame if the wireless terminal is a first type of wireless terminal and perceived as an enhanced or second format type of frame if the wireless terminal is a second type of wireless terminal. The frame handler configures the frame as plural subframes, each subframe having a downlink burst followed by an uplink burst. The frame is preferably configured to afford the second type of wireless terminal sufficient time to develop an acknowledgement for a message transmitted in a downlink burst, the acknowledgement being sent to the base station in an uplink burst which is within one frame length of the message.

Abstract translation: 无线电接入网络（RAN）（20）包括基站（28）和无线终端（30）。 基站（28）包括收发器（38）和帧处理器（40），无线终端（30）包括收发器（48）和无线终端帧处理器（50）。 帧处理器（40,50）处理具有增强的帧结构的增强帧F. 帧的至少下行链路部分被格式化和处理，其中如果无线终端是第一类型的无线终端并且被感知为增强或第二格式类型的帧，则可以将帧感知为第一格式类型的帧 如果无线终端是第二类型的无线终端。 帧处理器将帧配置为多个子帧，每个子帧具有下行链路突发，随后是上行链路突发。 该帧优选地被配置为提供第二类型的无线终端足够的时间以对在下行链路突发中发送的消息进行确认，该确认在消息的一个帧长度内的上行链路突发中被发送到基站。

公开(公告)号：US08031656B2

公开(公告)日：2011-10-04

申请号：US11924258

申请日：2007-10-25

Applicant: Kumar Balachandran ,  Havish Koorapaty ,  Rajaram Ramesh

Inventor： Kumar Balachandran ,  Havish Koorapaty ,  Rajaram Ramesh

IPC: H04W4/00

CPC classification number: H04W72/0446 ,  H04L1/08 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1887 ,  H04W72/0406

Abstract: A wireless telecommunications network supplies a semi-persistent resource that a wireless station can use for special purposes (such as a retransmission of packets for ARQ purposes or a control signal. The semi-persistent resource can be allocated by the system to other terminals if, e.g., a retransmission is not required. Since a retransmission is generally performed in response to a NACK received from a base station, the NACK may itself serve as a token that permits the wireless station to use the semi-persistent allocation. Thus, the technology includes, e.g., a method for resource allocation on a semi-persistent basis and efficient signaling for the usage of such allocation.

Abstract translation: 无线电信网络提供无线站可以用于特殊目的的半持久资源，例如用于ARQ目的的分组重传或控制信号。 如果不需要再传送，则半持久资源可以由系统分配给其他终端。 由于通常响应于从基站接收到的NACK来执行重传，所以NACK本身可以用作允许无线站使用半持久分配的令牌。 因此，该技术包括例如在半持久基础上的资源分配方法和用于这种分配的使用的有效信令。

公开(公告)号：US20100287453A1

公开(公告)日：2010-11-11

申请号：US12696141

申请日：2010-01-29

Applicant: Kumar BALACHANDRAN ,  Tsao-Tsen Chen ,  Havish Koorapaty ,  Rajaram Ramesh ,  Tripura Ramesh

Inventor： Kumar BALACHANDRAN ,  Tsao-Tsen Chen ,  Havish Koorapaty ,  Rajaram Ramesh ,  Tripura Ramesh

IPC: H03M13/27 ,  G06F11/10

CPC classification number: H03M13/235 ,  H03M13/2957 ,  H03M13/413 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6544

Abstract: A convolutional encoder (50) comprises an expurgation unit (22) and a first component convolutional encoder section (24). A convolutional turbo encoder (20) comprises an expurgation unit (22); a first component convolutional encoder section (24); a second component convolutional encoder section (26); and an interleaver (28). For both the convolutional encoder (50) and the expurgating convolutional turbo encoder (20) the expurgation unit (22) inserts predetermined values at selected bit positions of an input bit sequence and thereby provide an expurgated input bit sequence. A lower rate convolutional code is obtained from a higher rate code via expurgation.

Abstract translation: 卷积编码器（50）包括消除单元（22）和第一组件卷积编码器部分（24）。 卷积涡轮编码器（20）包括消除单元（22）; 第一组件卷积编码器部分（24）; 第二组件卷积编码器部分（26）; 和交织器（28）。 对于卷积编码器（50）和剥离卷积涡轮编码器（20），消除单元（22）在输入位序列的选定位位置处插入预定值，从而提供一个被消除的输入位序列。 较低速率的卷积码通过较高的速率代码获得。