公开(公告)号：US20140211694A1

公开(公告)日：2014-07-31

申请号：US14072229

申请日：2013-11-05

Applicant: QUALCOMM Incorporated

Inventor： Ning He ,  Wei Zhang ,  Ramesh Chandra Chirala ,  Sharif Ahsanul Matin

IPC: H04W52/24

CPC classification number: H04W52/241 ,  H04W52/143 ,  H04W52/40 ,  H04W52/56

Abstract: Aspects of the methods and apparatus relate to improving the overall decision quality of the Fractional-Dedicated Physical Channel (F-DPCH) channel. One aspect of the methods and apparatus relates to detecting bad channel conditions of a serving base station and improving the serving base station F-DPCH decoding performance in such bad conditions based on the serving base station signal-to interference ratio (SIR) estimation. Another aspect of the methods and apparatus relate to improving the overall decision quality of the F-DPCH channel in soft handover (HO) scenarios by increasing the non-serving base station F-DPCH channel rejections thresholds based on certain SIR estimations. The F-DPCH channel rejections thresholds are based on either the SIR of the non-serving base station, or a difference between non-serving base station SIR and serving base station SIR.

Abstract translation: 方法和装置的方面涉及提高分数专用物理信道（F-DPCH）信道的总体决策质量。 所述方法和装置的一个方面涉及基于服务基站信号与干扰比（SIR）估计来检测服务基站的不良信道状况并改善在这种不良状况下的服务基站F-DPCH解码性能。 所述方法和装置的另一方面涉及通过基于某些SIR估计来增加非服务基站F-DPCH信道拒绝阈值来改善软切换（HO）场景中的F-DPCH信道的总体决策质量。 F-DPCH信道拒绝阈值基于非服务基站的SIR或非服务基站SIR与服务基站SIR之间的差异。

公开(公告)号：US10404347B2

公开(公告)日：2019-09-03

申请号：US15462440

申请日：2017-03-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Wei Zhang

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0456 ,  H04L1/00 ,  H04L5/00

Abstract: Beamforming in time division duplex (TDD) multiple input, multiple output (MIMO) systems is discussed involving user equipments (UEs) having asymmetric antenna configurations. Aspects of the present disclosure use different combinations of signaling overhead and feedback along with leveraging the channel reciprocity characteristics of TDD systems in order to determine channel estimates for determining beamforming vectors. Additional aspects determine scheduling between UEs with symmetric receiver/transmission chains and asymmetric receiver/transmission chains to optimize reference signal overhead for groups of UEs with common beamforming processes.

公开(公告)号：US10278232B2

公开(公告)日：2019-04-30

申请号：US14223907

申请日：2014-03-24

Applicant: QUALCOMM Incorporated

Inventor： Sharif Ahsanul Matin ,  Wei Zhang ,  Marian Madan ,  Krishna Chaitanya Mukkera ,  Praveen Peruru

IPC: H04W76/30 ,  H04W76/19 ,  H04W24/02 ,  H04W76/34

Abstract: Aspects of the present disclosure provide an apparatus and methods for operating the same that can improve out-of-sync and radio link failure handling in a W-CDMA network. A user equipment (UE) establishes a packet switched (PS) connection between the UE and a base station, wherein the PS connection includes a Fractional Dedicated Physical Channel (F-DPCH). The UE configures an in-sync threshold (Qin) and an out-of-sync threshold (Qout) for the F-DPCH, wherein values of the Qin and Qout are set higher than those of corresponding Qin and Qout of a Dedicated Physical Channel (DPCH). The UE further estimates a downlink (DL) Signal to Interference Ratio (SIR) based on one or more transmit power control (TPC) commands of the F-DPCH, and determines whether to release the PS connection based on a comparison of the estimated SIR and Qout of the F-DPCH.

公开(公告)号：US10129872B2

公开(公告)日：2018-11-13

申请号：US14968462

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tao Luo ,  Wei Zhang

IPC: H04W72/04 ,  H04W74/08 ,  H04W16/14

Abstract: Managing misdetection of fractional channel reserving signals is discussed. Fractional channel reserving signals may be misdetected by receivers as regular channel reserving signals, thus, resulting in inconsistencies between transmitters and receivers in conducing uplink and downlink communication. Various aspects address solutions to this problem through different means, such as the transmitter using a different sequence for fraction channel reserving signals, ensuring that frame formatting signals are transmitted with the regular channel reserving signals, not transmitting such signals, or not transmitting regular channel reserving signals after the fractional signals are transmitted. Additionally, a transmitter may determine to discard one or more channel feedback reports from user equipment (UE) when such fractional signals are transmitted. Additional aspects would provide for the UE to monitor last and first subframes for the reserving signals to determine which signal, if any, is the fractional reserving signal.

公开(公告)号：US20170034728A1

公开(公告)日：2017-02-02

申请号：US15210379

申请日：2016-07-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Wei Zhang ,  Tao Luo

IPC: H04W24/10 ,  H04W24/02 ,  H04B17/309 ,  H04W24/08 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04B17/309 ,  H04L5/0048 ,  H04W16/14 ,  H04W24/02 ,  H04W24/08 ,  H04W74/08

Abstract: Reporting and measurements of measurement signals transmitted as a part of LTE/LTE-A networks that include contention-based spectrum is disclosed. In one aspect, a user equipment (UE) performs measurement signal thresholding by estimating the noise associated with the measurement signal. The UE would then use a measured parameter of that signal based on the measurement signal exceeding the threshold as a candidate for a valid measured parameter.

Abstract translation: 公开了作为包括基于争用频谱的LTE / LTE-A网络的一部分传输的测量信号的报告和测量。 在一个方面，用户设备（UE）通过估计与测量信号相关联的噪声来执行测量信号阈值。 然后，UE将基于超过阈值的测量信号将该信号的测量参数用作有效测量参数的候选。

公开(公告)号：US09510218B2

公开(公告)日：2016-11-29

申请号：US14267773

申请日：2014-05-01

Applicant: QUALCOMM Incorporated

Inventor： Nate Chizgi ,  Wei Zhang

IPC: G06F11/00 ,  H04W24/08 ,  H04B7/06 ,  H04L1/00 ,  H04L1/20

CPC classification number: H04W24/08 ,  H04B7/0619 ,  H04B7/0654 ,  H04L1/0021 ,  H04L1/0055 ,  H04L1/206

Abstract: Access terminals are adapted to facilitate closed-loop transmit diversity in wireless communications systems. According to one example, an access terminal can calculate an uplink error rate for even slot indexes and a separate uplink error rate for odd slot indexes in an uplink frame to be transmitted. A respective downlink error rate can be estimated for an in-phase (I) component and a quadrature-phase (Q) component of a downlink transmission. The access terminal may further estimate a phase-related weight that was applied to the downlink transmission based on the downlink error rates and the uplink error rates. Other aspects, embodiments, and features are also included.

Abstract translation: 接入终端适于促进无线通信系统中的闭环发射分集。 根据一个示例，接入终端可以计算偶数时隙索引的上行链路误码率和要发送的上行链路帧中的奇数时隙索引的单独的上行链路误码率。 可以针对下行链路传输的同相（I）分量和正交相（Q）分量估计相应的下行链路误码率。 接入终端还可以基于下行链路错误率和上行链路错误率来估计应用于下行链路传输的相位相关权重。 还包括其他方面，实施例和特征。

公开(公告)号：US20160174222A1

公开(公告)日：2016-06-16

申请号：US14968462

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tao Luo ,  Wei Zhang

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W72/0446 ,  H04W16/14 ,  H04W74/08 ,  H04W74/0816

Abstract: Managing misdetection of fractional channel reserving signals is discussed. Fractional channel reserving signals may be misdetected by receivers as regular channel reserving signals, thus, resulting in inconsistencies between transmitters and receivers in conducing uplink and downlink communication. Various aspects address solutions to this problem through different means, such as the transmitter using a different sequence for fraction channel reserving signals, ensuring that frame formatting signals are transmitted with the regular channel reserving signals, not transmitting such signals, or not transmitting regular channel reserving signals after the fractional signals are transmitted. Additionally, a transmitter may determine to discard one or more channel feedback reports from user equipment (UE) when such fractional signals are transmitted. Additional aspects would provide for the UE to monitor last and first subframes for the reserving signals to determine which signal, if any, is the fractional reserving signal.

Abstract translation: 讨论了分数通道保留信号的错误检测。 小数信道保留信号可能被接收机错误地检测为常规信道保留信号，从而导致发射机和接收机之间导致上行链路和下行链路通信的不一致。 各方面通过不同的手段解决了这个问题的解决方案，例如使用不同序列的分组信道保留信号的发射机，确保帧格式化信号与常规信道保留信号一起发送，不发送这样的信号，或者不传输常规信道保留 分数信号传输后的信号。 另外，当发送这种分数信号时，发射机可以确定丢弃来自用户设备（UE）的一个或多个信道反馈报告。 另外的方面将提供UE监视保留信号的最后和第一子帧以确定哪个信号（如果有的话）是分数预留信号。

公开(公告)号：US09264962B2

公开(公告)日：2016-02-16

申请号：US14265063

申请日：2014-04-29

Applicant: QUALCOMM Incorporated

Inventor： Wei Zhang ,  Sagar Bharatkumar Shah ,  Rami Hmeidan Alnatsheh ,  Vijay Marwah ,  Nate Chizgi ,  Guang Xie

IPC: H04B7/00 ,  H04W36/18 ,  H04W24/02

CPC classification number: H04W36/18 ,  H04W24/02

Abstract: Aspects of the present disclosure provide an apparatus and methods for detecting and handling a spurious Dedicated Physical Channel (DPCH) of a cell in an active set from a mobile station side. A user equipment determines a signal-to-interference ratio (SIR) for each channel of a plurality of channels associated with cells maintained in an active set. A spurious DPCH has the lowest SIR among the plurality of channels. The user equipment puts the detected spurious DPCH in an exclusion mode in which the spurious DPCH is excluded from at least one of channel decoding or SIRE calculation, while maintaining the cell associated with the spurious DPCH in the active set.

Abstract translation: 本公开的方面提供了用于检测和处理来自移动站侧的活动集中的小区的伪专​​用物理信道（DPCH）的装置和方法。 用户设备确定与维持在活动集合中的小区相关联的多个信道中的每个信道的信号干扰比（SIR）。 杂散DPCH在多个信道中具有最低的SIR。 用户设备将检测到的假DPCH置于排除模式中，其中从频道解码或SIRE计算中的至少一个排除杂散DPCH，同时将与激活的DPCH相关联的小区保持在活动集中。

公开(公告)号：US09179418B2

公开(公告)日：2015-11-03

申请号：US14072229

申请日：2013-11-05

Applicant: QUALCOMM Incorporated

Inventor： Ning He ,  Wei Zhang ,  Ramesh Chandra Chirala ,  Sharif Ahsanul Matin

IPC: H04L1/00 ,  H04W52/24 ,  H04W52/56 ,  H04W52/14 ,  H04W52/40

CPC classification number: H04W52/241 ,  H04W52/143 ,  H04W52/40 ,  H04W52/56

Abstract: Aspects of the methods and apparatus relate to improving the overall decision quality of the Fractional-Dedicated Physical Channel (F-DPCH) channel. One aspect of the methods and apparatus relates to detecting bad channel conditions of a serving base station and improving the serving base station F-DPCH decoding performance in such bad conditions based on the serving base station signal-to interference ratio (SIR) estimation. Another aspect of the methods and apparatus relate to improving the overall decision quality of the F-DPCH channel in soft handover (HO) scenarios by increasing the non-serving base station F-DPCH channel rejections thresholds based on certain SIR estimations. The F-DPCH channel rejections thresholds are based on either the SIR of the non-serving base station, or a difference between non-serving base station SIR and serving base station SIR.

Abstract translation: 方法和装置的方面涉及提高分数专用物理信道（F-DPCH）信道的总体决策质量。 所述方法和装置的一个方面涉及基于服务基站信号与干扰比（SIR）估计来检测服务基站的不良信道状况并改善在这种不良状况下的服务基站F-DPCH解码性能。 所述方法和装置的另一方面涉及通过基于某些SIR估计来增加非服务基站F-DPCH信道拒绝阈值来改善软切换（HO）场景中的F-DPCH信道的总体决策质量。 F-DPCH信道拒绝阈值基于非服务基站的SIR或非服务基站SIR与服务基站SIR之间的差异。

公开(公告)号：US09055537B2

公开(公告)日：2015-06-09

申请号：US13763216

申请日：2013-02-08

Applicant: QUALCOMM Incorporated

Inventor： Wei Zhang ,  Ning He ,  Sharif Ahsanul Matin ,  Mohammad J Al-Saleh ,  Nitin Kasturi ,  Prashant Udupa Sripathi ,  Messay Amerga ,  Krishna Chaitanya Mukkera ,  Iyab I Sakhnini ,  Ravi Gopalan

IPC: H04B7/00 ,  H04W52/00 ,  H04W52/24 ,  H04W52/56 ,  H04W52/08

CPC classification number: H04W52/241 ,  H04W52/08 ,  H04W52/56

Abstract: Disclosed are methods and apparatus for rejecting unreliable downlink (DL) transmit power control (TPC) commands based on signal-to-interference-ratio estimates (SIRE). The method includes receiving by a user equipment (UE) a DL transmit power control (TPC) command from a base station; calculating a signal-to-interference ratio estimate (SIRE) for the DL channel; determining a scaling factor for a DLTPC rejection threshold based on the DL channel SIRE; adjusting the DLTPC rejection threshold based on the determined scaling factor; and rejecting or accepting the DLTPC command based on the adjusted DLTPC rejection threshold.

Abstract translation: 公开了用于基于信号与干扰比估计（SIRE）拒绝不可靠下行链路（DL）发射功率控制（TPC）命令的方法和装置。 该方法包括：从用户设备（UE）接收来自基站的DL发射功率控制（TPC）命令; 计算DL信道的信号干扰比估计（SIRE）; 基于DL信道SIRE确定DLTPC拒绝阈值的缩放因子; 基于确定的缩放因子来调整DLTPC拒绝阈值; 并基于调整后的DLTPC拒绝阈值拒绝或接受DLTPC命令。