公开(公告)号：WO2009059039A2

公开(公告)日：2009-05-07

申请号：PCT/US2008081844

申请日：2008-10-30

Applicant: INTERDIGITAL PATENT HOLDINGS ,  BALA ERDEM ,  PAN KYLE JUNG-LIN ,  HAGHIGHAT AFSHIN ,  GRIECO DONALD M ,  LIN ZINAN ,  OLESEN ROBERT L ,  ZHANG GUODONG

Inventor： BALA ERDEM ,  PAN KYLE JUNG-LIN ,  HAGHIGHAT AFSHIN ,  GRIECO DONALD M ,  LIN ZINAN ,  OLESEN ROBERT L ,  ZHANG GUODONG

IPC: H04L1/00

CPC classification number: H04L1/0029 ,  H04L1/0026 ,  H04L1/003

Abstract: A method and apparatus for generating channel quality indicator (CQI), precoding matrix indicator (PMI) and rank information are disclosed. The method and apparatus reduces feedback overhead and defines differential CQI information in an orthogonal frequency division multiplex (OFDM) symbol.

Abstract translation: 公开了一种用于产生信道质量指示符（CQI），预编码矩阵指示符（PMI）和等级信息的方法和装置。 该方法和装置降低了反馈开销，并定义了正交频分复用（OFDM）符号中的差分CQI信息。

公开(公告)号：WO2011011566A3

公开(公告)日：2011-03-17

申请号：PCT/US2010042838

申请日：2010-07-22

Applicant: INTERDIGITAL PATENT HOLDINGS ,  ZHANG GUODONG ,  HAGHIGHAT AFSHIN ,  BASS DAVID S ,  BALA ERDEM

Inventor： ZHANG GUODONG ,  HAGHIGHAT AFSHIN ,  BASS DAVID S ,  BALA ERDEM

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053

Abstract: A method and apparatus are described for obtaining demodulation reference signal (DMRS) port index information. In one scenario, an evolved Node-B (eNodeB), having a plurality of antenna ports, disables a codeword in a downlink (DL) control indicator (DCI), uses an unused new data indicator (NDI) bit of the disabled codeword as a DMRS port index information field, and transmits the DCI. A wireless transmit/receive unit (WTRU) receives the DCI from the eNodeB and obtains a DMRS port index from the unused NDI bit of the disabled codeword in the received DCI. In another scenario, a DCI including a disabled codeword and a resource allocation header bit in a DMRS port index information field of the DCI is received by the WTRU. The WTRU re-interprets the resource allocation header bit in the DCI as a DMRS port index.

Abstract translation: 描述了用于获得解调参考信号（DMRS）端口索引信息的方法和设备。 在一个场景中，具有多个天线端口的演进型节点B（eNodeB）禁用下行链路（DL）控制指示符（DCI）中的码字，将禁用的代码字的未使用的新数据指示符（NDI）位用作 DMRS端口索引信息字段，并发送DCI。 无线发射/接收单元（WTRU）从eNodeB接收DCI，并从接收到的DCI中禁用的码字的未使用的NDI位获得DMRS端口索引。 在另一种情况下，WTRU接收DCI的DMRS端口索引信息字段中包括禁用码字和资源分配报头比特的DCI。 WTRU将DCI中的资源分配头部位重新解释为DMRS端口索引。

公开(公告)号：WO2010124228A2

公开(公告)日：2010-10-28

申请号：PCT/US2010032267

申请日：2010-04-23

Applicant: INTERDIGITAL PATENT HOLDINGS ,  PELLETIER GHYSLAIN ,  TERRY STEPHEN E ,  MARINIER PAUL ,  ZHANG GUODONG ,  WANG PETER S ,  WANG JIN ,  SOMASUNDARAM SHANKAR ,  GAUVREAU JEAN-LOUIS ,  DENNEAN CHARLES A ,  BALA ERDEM ,  HAGHIGHAT AFSHIN

Inventor： PELLETIER GHYSLAIN ,  TERRY STEPHEN E ,  MARINIER PAUL ,  ZHANG GUODONG ,  WANG PETER S ,  WANG JIN ,  SOMASUNDARAM SHANKAR ,  GAUVREAU JEAN-LOUIS ,  DENNEAN CHARLES A ,  BALA ERDEM ,  HAGHIGHAT AFSHIN

IPC: H04W74/08

CPC classification number: H04W74/0833 ,  H04L27/2613 ,  H04W72/042 ,  H04W74/002 ,  H04W74/004 ,  H04W74/0866

Abstract: 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 set 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.

Abstract translation: 公开了用于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。 一种用于通过将UL载波添加到允许的RACH配置集合中来设置允许的多载波上行链路（UL）随机接入信道（RACH）配置的方法，只要触发事件发生并且使用允许的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的UL载波并从所述一组可用的UL载波中选择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：WO2009100196A1

公开(公告)日：2009-08-13

申请号：PCT/US2009/033185

申请日：2009-02-05

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  NAYEB NAZAR, Shahrokh ,  HAGHIGHAT, Afshin ,  TSAI, Allan, Y. ,  ZHANG, Guodong

Inventor： NAYEB NAZAR, Shahrokh ,  HAGHIGHAT, Afshin ,  TSAI, Allan, Y. ,  ZHANG, Guodong

IPC: H04J13/00 ,  H04L27/26

CPC classification number: H04J11/0073

Abstract: A method optimizes a selection of primary synchronization channel (P-SCH) sequences from an available set of P-SCH indices for a dedicated Multimedia Broadcast/Multicast Service (MBMS). The criteria for selecting P-SCH indices include coprimeness, frequency offset sensitivity, multipath sensitivity, cross-correlation property in the time domain, auto-correlation property in the time domain and computation complexity at the receiver.

Abstract translation: 一种方法从用于专用多媒体广播/多播服务（MBMS）的可用的P-SCH索引组中优化主同步信道（P-SCH）序列的选择。 选择P-SCH指标的标准包括：干扰度，频偏灵敏度，多径灵敏度，时域中的互相关属性，时域中的自相关属性以及接收端的计算复杂度。

公开(公告)号：WO2009059039A3

公开(公告)日：2009-05-07

申请号：PCT/US2008/081844

申请日：2008-10-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  BALA, Erdem ,  PAN, Kyle, Jung-Lin ,  HAGHIGHAT, Afshin ,  GRIECO, Donald, M. ,  LIN, Zinan ,  OLESEN, Robert, L. ,  ZHANG, Guodong

Inventor： BALA, Erdem ,  PAN, Kyle, Jung-Lin ,  HAGHIGHAT, Afshin ,  GRIECO, Donald, M. ,  LIN, Zinan ,  OLESEN, Robert, L. ,  ZHANG, Guodong

IPC: H04L1/00

Abstract: A method and apparatus for generating channel quality indicator (CQI) are disclosed. The method and apparatus reduces feedback overhead and defines differential CQI information in an orthogonal frequency division multiplex (OFDM) symbol.

公开(公告)号：WO2008021119A1

公开(公告)日：2008-02-21

申请号：PCT/US2007/017609

申请日：2007-08-07

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  HAGHIGHAT, Afshin ,  HOSSEINIAN, Seyed M.

Inventor： HAGHIGHAT, Afshin ,  HOSSEINIAN, Seyed M.

IPC: H04B17/00

CPC classification number: H04B17/309

Abstract: A method and apparatus for estimating noise for orthogonal frequency division multiplexing (OFDM) are disclosed. A time domain difference signal and a frequency domain difference signal between two consecutive received pilot symbols are calculated. A time domain noise power is calculated from the time domain difference signal and a frequency domain noise power is calculated from the frequency domain difference signal. The time domain noise power and the frequency domain noise power are combined to estimate the noise power.

Abstract translation: 公开了一种用于估计正交频分复用（OFDM）噪声的方法和装置。 计算两个连续的接收导频符号之间的时域差信号和频域差信号。 从时域差信号计算时域噪声功率，并从频域差分信号计算频域噪声功率。 将时域噪声功率和频域噪声功率组合起来估计噪声功率。

公开(公告)号：WO2012094635A1

公开(公告)日：2012-07-12

申请号：PCT/US2012/020547

申请日：2012-01-06

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  ZHANG, Guodong ,  PELLETIER, Ghyslain ,  HAGHIGHAT, Afshin ,  MARINIER, Paul ,  CAVE, Christopher ,  ADJAKPLE, Pascal M. ,  TSAI, Allan Y.

Inventor： ZHANG, Guodong ,  PELLETIER, Ghyslain ,  HAGHIGHAT, Afshin ,  MARINIER, Paul ,  CAVE, Christopher ,  ADJAKPLE, Pascal M. ,  TSAI, Allan Y.

IPC: H04B7/02

CPC classification number: H04W72/042 ,  H04B7/024 ,  H04L5/0035 ,  H04W68/005

Abstract: A method and apparatus may be used to enable reception of a downlink (DL) shared channel in a cooperative multipoint transmission (CoMP). The method and apparatus may determine whether CoMP is applied to a transmission. The method and apparatus may acquire other CoMP related information. The method and apparatus may apply to non-transparent CoMP scenarios.

Abstract translation: 可以使用方法和装置来使得能够在协作多点传输（CoMP）中接收下行链路（DL）共享信道。 该方法和装置可以确定是否将CoMP应用于传输。 该方法和装置可获取其它CoMP相关信息。 该方法和装置可以应用于不透明的CoMP场景。

公开(公告)号：WO2011019813A3

公开(公告)日：2011-02-17

申请号：PCT/US2010/045165

申请日：2010-08-11

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  ZHANG, Guodong ,  HAGHIGHAT, Afshin ,  BALA, Erdem ,  BASS, David S. ,  MARINIER, Paul ,  RUDOLF, Marian ,  TERRY, Stephen, E.

Inventor： ZHANG, Guodong ,  HAGHIGHAT, Afshin ,  BALA, Erdem ,  BASS, David S. ,  MARINIER, Paul ,  RUDOLF, Marian ,  TERRY, Stephen, E.

IPC: H04W74/08

Abstract: A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted.

公开(公告)号：WO2011019813A2

公开(公告)日：2011-02-17

申请号：PCT/US2010045165

申请日：2010-08-11

Applicant: INTERDIGITAL PATENT HOLDINGS ,  ZHANG GUODONG ,  HAGHIGHAT AFSHIN ,  BALA ERDEM ,  BASS DAVID S ,  MARINIER PAUL ,  RUDOLF MARIAN ,  TERRY STEPHEN E

Inventor： ZHANG GUODONG ,  HAGHIGHAT AFSHIN ,  BALA ERDEM ,  BASS DAVID S ,  MARINIER PAUL ,  RUDOLF MARIAN ,  TERRY STEPHEN E

IPC: H04W74/08

CPC classification number: H04W74/0891 ,  H04W52/10 ,  H04W52/146 ,  H04W52/50 ,  H04W72/042 ,  H04W72/1268 ,  H04W72/14 ,  H04W74/002 ,  H04W74/0833 ,  H04W76/045

Abstract: A method and apparatus for a wireless transmit receive unit (WTRU) to use a contention-based uplink communications channel, applies a rule-based restriction of access to the contention-based uplink channel that attempts to use at least one contention-free uplink channel allocation for uplink transmissions on a condition that at least one contention-free uplink channel allocation has been granted.

Abstract translation: 一种用于使用基于竞争的上行链路通信信道的无线发射接收单元（WTRU）的方法和装置，将基于规则的对基于竞争的上行链路信道的接入限制应用于尝试使用至少一个无竞争上行链路信道 在至少一个无竞争的上行链路信道分配被授予的条件下，用于上行链路传输的分配。

公开(公告)号：WO2008115401A1

公开(公告)日：2008-09-25

申请号：PCT/US2008/003366

申请日：2008-03-14

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  HAGHIGHAT, Afshin ,  OLESEN, Robert, L. ,  ZHANG, Guodong ,  LIN, Zinan

Inventor： HAGHIGHAT, Afshin ,  OLESEN, Robert, L. ,  ZHANG, Guodong ,  LIN, Zinan

IPC: H04Q7/38

CPC classification number: H04W28/06 ,  H04L1/0029 ,  H04L27/2601 ,  H04W24/10 ,  H04W72/0413

Abstract: A method and apparatus for reducing feedback transmission overhead in wireless communications. Averaging, compression, or both are used to reduce a number of bits needed for transmission of channel quality information.

Abstract translation: 一种用于减少无线通信中的反馈传输开销的方法和装置。 平均，压缩或两者都用于减少传输信道质量信息所需的位数。