公开(公告)号：WO2011037934A1

公开(公告)日：2011-03-31

申请号：PCT/US2010/049702

申请日：2010-09-21

Applicant: QUALCOMM INCORPORATED ,  BLACK, Peter, John ,  LOTT, Christopher, Gerard ,  ATTAR, Rashid, Ahmed, Akbar ,  JOU, Yu-Cheun ,  MA, Jun

Inventor： BLACK, Peter, John ,  LOTT, Christopher, Gerard ,  ATTAR, Rashid, Ahmed, Akbar ,  JOU, Yu-Cheun ,  MA, Jun

IPC: H04B1/707 ,  H04L25/02

CPC classification number: H04L25/0224 ,  H04B1/7107 ,  H04B2201/70701 ,  H04L25/0204 ,  H04L25/0228 ,  H04W52/36 ,  H04W52/48

Abstract: Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.

Abstract translation: 使用干扰消除（IC）来提高无线通信系统容量的技术。 在早期的解码和IC方面，可以在整个帧被基站接收之前解码从用户发送到基站的帧。 帧的其余部分然后可以在其接收之前在基站重新构建，并从接收信号中消除，以减少对从其他用户接收到的帧的干扰。 在用于早期解码和IC的功率控制方面，本地基站处的功率控制目标电平可响应于成功提前解码帧而被调整，而不影响整个外环功率控制操作。 其它方面包括用于利用其他用户的信号的IC来提高解码给定用户的帧的概率的后期解码技术以及使用信道重新估计的业务信道解调的技术。

公开(公告)号：WO2011037931A2

公开(公告)日：2011-03-31

申请号：PCT/US2010/049690

申请日：2010-09-21

Applicant: QUALCOMM INCORPORATED ,  BLACK, Peter, John ,  LOTT, Christopher, Gerard ,  ATTAR, Rashid, Ahmed, Akbar ,  JOU, Yu-Cheun ,  MA, Jun

Inventor： BLACK, Peter, John ,  LOTT, Christopher, Gerard ,  ATTAR, Rashid, Ahmed, Akbar ,  JOU, Yu-Cheun ,  MA, Jun

IPC: H04L1/00

CPC classification number: H04W52/54 ,  H04B1/7107 ,  H04B1/71072 ,  H04L1/0048 ,  H04L1/0052 ,  H04L25/03006 ,  H04W36/18 ,  H04W52/08 ,  H04W52/12 ,  H04W52/362 ,  H04W52/40

Abstract: Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.

Abstract translation: 用于改善使用干扰消除（IC）的无线通信系统的容量的技术。 在早期的解码和IC方面，可以在整个帧被基站接收之前解码从用户发送到基站的帧。 帧的其余部分然后可以在其接收之前在基站重新构建，并从接收信号中消除，以减少对从其他用户接收到的帧的干扰。 在用于早期解码和IC的功率控制方面，本地基站处的功率控制目标电平可响应于成功提前解码帧而被调整，而不影响整个外环功率控制操作。 其他方面包括用于利用其他用户的信号的IC来提高解码给定用户的帧的概率的后期解码技术，以及使用信道重新估计的业务信道解调的技术。

公开(公告)号：WO2010062641A1

公开(公告)日：2010-06-03

申请号：PCT/US2009/062348

申请日：2009-10-28

Applicant: QUALCOMM Incorporated ,  JOU, Yu-Cheun ,  ATTAR, Rashid Ahmed Akbar ,  MA, Jun

Inventor： JOU, Yu-Cheun ,  ATTAR, Rashid Ahmed Akbar ,  MA, Jun

IPC: H04W72/12 ,  H04W36/18

CPC classification number: H04W52/54 ,  H04J13/0003 ,  H04J13/0048 ,  H04W36/08 ,  H04W36/18 ,  H04W52/40

Abstract: A method for processing forward link channel signals generated by a CDMA base station includes time sharing by several mobile stations of spreading codes, which are orthogonal codes such as Walsh Code, and code-combining soft/softer handoff across sectors in the mobile station active set to increase dimensions on the CDMA2000 and WCDMA downlink while minimizing intra-sector interference. Since different parts of a packet or frame are transmitted to the user by the different base stations in the active set, earlier decoding and therefore early packet termination is enabled.

Abstract translation: 用于处理由CDMA基站产生的前向链路信道信号的方法包括几个移动站对诸如沃尔什码之类的正交码以及移动台活动组中的扇区之间的代码组合软/更软切换的扩展码的时间共享 以增加CDMA2000和WCDMA下行链路上的尺寸，同时最小化扇区内干扰。 由于分组或帧的不同部分由活动集中的不同基站发送给用户，所以早期解码并因此启用早期分组终止。

公开(公告)号：WO2009152135A1

公开(公告)日：2009-12-17

申请号：PCT/US2009/046717

申请日：2009-06-09

Applicant: QUALCOMM INCORPORATED ,  JOU, Yu-Cheun ,  BLACK, Peter, J. ,  ATTAR, Rashid Ahmed, Akbar

Inventor： JOU, Yu-Cheun ,  BLACK, Peter, J. ,  ATTAR, Rashid Ahmed, Akbar

IPC: H04L1/00

CPC classification number: H04W52/44 ,  H04B2201/709709 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0029 ,  H04L1/0045 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1887 ,  H04L2001/0092 ,  H04W52/58

Abstract: Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or "blanking," of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null- rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as "critical" by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.

Abstract translation: 提高无线通信系统容量的技术。 在一方面，提供了在通信系统中传输的最小速率帧的系统非传输或“消隐”。 在示例性实施例中，cdma2000语音通信系统中的第八速率帧被系统地替换为带有零业务位的零速率帧。 然而，对于由例如声码器指定为“关键”的某些设备进行了规定。 接收机检测到零速率或非零速率传输的存在并相应地处理接收到的帧，包括仅响应于非空速率帧来更新外部环路功率控制。 提供了用于改变导频传输门控模式以辅助接收机检测零速率帧的其它技术。 在另一方面，提供了通过无线通信链路的信号传输的提前终止。 在示例性实施例中，基站（BS）通过前向链路（FL）向移动站（MS）发送用于帧的功率控制组（PCG），直到MS通过反向链路确认帧的准确接收 （RL），可能在帧的所有PCG之前都被接收到FL。 针对与cdma2000无线通信系统相关的通道定义了可能的ACK信令方法。 在另一示例性实施例中，还提供了用于反向链路提前终止的技术。

公开(公告)号：WO2004075597A2

公开(公告)日：2004-09-02

申请号：PCT/US2004/004791

申请日：2004-02-18

Applicant: QUALCOMM INCORPORATED ,  CHEN, Tao ,  LUNDBY, Stein A. ,  SARKAR, Sandip ,  JOU, Yu-Cheun

Inventor： CHEN, Tao ,  LUNDBY, Stein A. ,  SARKAR, Sandip ,  JOU, Yu-Cheun

IPC: H04Q7/38

CPC classification number: H04W52/38 ,  H04W52/44

Abstract: Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a "zero-rate indicator" is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.

Abstract translation: 在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。 在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。 当在业务信道上发送数据时，基站使用所发送的数据来执行功率控制操作（例如，基于接收的SNR与目标SNR的比较来增加或减少移动台的功率电平）。 当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。 零速率指示器由基站用于执行功率控制。 基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。

公开(公告)号：WO2010093982A1

公开(公告)日：2010-08-19

申请号：PCT/US2010/024173

申请日：2010-02-12

Applicant: QUALCOMM INCORPORATED ,  JOU, Yu-Cheun ,  ATTAR, Rashid, Ahmed, Akbar ,  WALLACE, Mark, S. ,  WU, Qiang ,  MA, Jun

Inventor： JOU, Yu-Cheun ,  ATTAR, Rashid, Ahmed, Akbar ,  WALLACE, Mark, S. ,  WU, Qiang ,  MA, Jun

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0235 ,  H04W52/44 ,  H04W52/54 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/25

Abstract: An apparatus and method for transmit power savings comprising determining a rate of a previous frame; determining if a current frame is an ALWAYS-ON frame, wherein the current frame temporally succeeds the previous frame; and either ignoring every other reverse link power control (RLPC) bits received on a forward power control subchannel (F-PCSCH) or applying every RLPC bits received on the F-PCSCH. In one aspect, the apparatus and method for transmit power savings comprising using a rate determination algorithm (RDA) to determine a rate of a previous frame; detecting a pilot gating pattern at the end of the previous frame; comparing the rate of the previous frame to a threshold; determining if a current frame is an ALWAYS-ON frame; and declaring the current frame to be a 0 bps frame and puncturing the F-PCSCH to a predetermined frequency.

Abstract translation: 一种用于发射功率节省的装置和方法，包括：确定先前帧的速率; 确定当前帧是否是一个ALWAYS-ON帧，其中当前帧在时间上成功接收前一帧; 并且忽略在正向功率控制子信道（F-PCSCH）上接收的每个其他反向链路功率控制（RLPC）比特，或者应用在F-PCSCH上接收的每个RLPC比特。 一方面，用于传输功率节省的装置和方法包括使用速率确定算法（RDA）来确定先前帧的速率; 在前一帧结束时检测导频门控模式; 将前一帧的速率与阈值进行比较; 确定当前帧是否是始发帧; 并且将当前帧声明为0bps帧并将F-PCSCH打孔到预定频率。

公开(公告)号：WO2003017526A1

公开(公告)日：2003-02-27

申请号：PCT/US2002/025467

申请日：2002-08-08

Applicant: QUALCOMM INCORPORATED

Inventor： JOU, Yu-Cheun

IPC: H04B7/005

CPC classification number: H04W52/267 ,  H04L1/0002 ,  H04W52/24 ,  H04W52/282

Abstract: In a code division multiple access communication system (100), a method and an accompanying apparatus provide for an efficient control of a gain level of a communication channel at various mobility levels. A rate of change of a carrier to interference ratio (C/I) of a communication channel received at a receiver (400) is determined. The gain level of the communication channel may be based on the rate of change of the C/I of the communication channel. A mobility level of the communication channel may be compared to a low mobility threshold corresponding to a low mobility level. If the mobility level meets the low mobility threshold, the gain level of the communication channel may be based on the rate of change of the C/I of the communication channel.

Abstract translation: 在码分多址通信系统（100）中，一种方法和伴随装置提供了在各种移动性级别对通信信道的增益级别的有效控制。 确定在接收机（400）处接收的通信信道的载波与干扰比（C / I）的变化率。 通信信道的增益电平可以基于通信信道的C / I的变化率。 可以将通信信道的移动性水平与对应于低移动性水平的低移动性阈值进行比较。 如果移动性水平满足低移动性阈值，则通信信道的增益水平可以基于通信信道的C / I的变化率。

公开(公告)号：WO2002060212A2

公开(公告)日：2002-08-01

申请号：PCT/US2002/000889

申请日：2002-01-10

Applicant: QUALCOMM INCORPORATED

Inventor： JOU, Yu-Cheun ,  WANG, Jun

IPC: H04Q7/38

CPC classification number: H04W68/00

Abstract: Method and apparatus for pseudo-synchronized paging to a mobile station in a wireless communication system. A number of paging repetitions is assigned, wherein a quick page message is repeatedly sent to a target mobile station for the number of paging repetitions. The number of paging repetitions is part of a paging instruction from a base station controller to a base station. The pseudo-synchronized method is used when the target mobile station is soft handoff.

Abstract translation: 用于在无线通信系统中对移动台进行伪同步寻呼的方法和装置。 分配多个寻呼重复，其中快速寻呼消息被重复地发送到目标移动台以寻呼次数。 寻呼重复次数是从基站控制器到基站的寻呼指令的一部分。 当目标移动台是软切换时，使用伪同步方法。

公开(公告)号：WO1996017454A1

公开(公告)日：1996-06-06

申请号：PCT/US1995015534

申请日：1995-11-29

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  TIEDEMANN, Edward, G., Jr. ,  JOU, Yu-Cheun ,  WEAVER, Lindsay, A., Jr. ,  BAYLEY, Gwain

IPC: H04L01/24

CPC classification number: H04L1/20 ,  H04L1/241 ,  H04L1/242 ,  H04L2027/0034

Abstract: The invention provides a system and method for testing signal transmission quality wihin a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.

Abstract translation: 本发明提供了一种用于在数字通信系统中测试信号传输质量的系统和方法，并且可以被并入通过扩频通信信道交换信息的数字蜂窝通信系统内。 在接收站处接收通过通信信道发送的数字数据的测试序列，其中还产生数字数据的测试序列的副本。 然后通过将数字数据的测试序列的副本与通过通信信道接收的数据的测试序列进行比较来确定通信信道上的传输的准确性。 本发明允许数字数据的测试序列以一组已知数据速率中的一个发送，其中接收的站被设置为识别与数字数据的每个测试序列相关联的数据速率。 为了模拟例如语音数据的传输，可以配置系统，使得数字数据的每个测试序列根据伪随机过程生成。

公开(公告)号：WO2010065622A1

公开(公告)日：2010-06-10

申请号：PCT/US2009/066389

申请日：2009-12-02

Applicant: QUALCOMM INCORPORATED ,  WANG, Min ,  KANDHADAI, Ananthapadmanabhan Arasanipalai ,  PATWARDHAN, Ravindra M. ,  ATTAR, Rashid Ahmed Akbar ,  JOU, Yu-Cheun

Inventor： WANG, Min ,  KANDHADAI, Ananthapadmanabhan Arasanipalai ,  PATWARDHAN, Ravindra M. ,  ATTAR, Rashid Ahmed Akbar ,  JOU, Yu-Cheun

IPC: H04S1/00 ,  H04W52/02 ,  H04L29/06

CPC classification number: H04S1/007

Abstract: A communication system for use in a wireless network includes: an audio module configured to provide packets indicative of audio for a part of a communication between the communication system and another communication system, the communication spanning packet times, the packets including at least critical packets indicative of critical audio; and a transceiver coupled to the audio module and configured to cause: the critical packets to be conveyed for transmission; and first non-critical packets, indicative of non-critical audio, to be conveyed for transmission such that (1) the first non-critical packets represent less than all of a time between transmission of critical packets and (2) no more than a threshold number of packet times will pass without one of the critical packets or one of the first non-critical packets being conveyed by the transceiver for transmission.

Abstract translation: 用于无线网络的通信系统包括：音频模块，被配置为提供指示通信系统与另一通信系统之间的通信的一部分的音频的分组，跨越分组时间的通信，分组至少包括关键分组指示 的关键音频; 以及耦合到所述音频模块并被配置为使得所述关键分组被传送以进行传输的收发器; 和指示非关键音频的第一非关键分组被传送用于传输，使得（1）第一非关键分组表示小于关键分组传输之间的所有时间，和（2）不超过一个 分组时间的阈值数将通过，而没有关键分组之一或由收发器传送的第一非关键分组之一用于传输。