公开(公告)号：WO0203588A3

公开(公告)日：2002-06-20

申请号：PCT/US0120819

申请日：2001-06-28

Applicant: QUALCOMM INC

Inventor： GLAZKO SERGUEI ,  ACHOUR BAAZIZ ,  LIN YU-CHUAN

IPC: H04B7/26 ,  H04J3/14 ,  H04J3/17 ,  H04L1/20 ,  H04Q7/38

CPC classification number: H04L1/20 ,  H04J3/14 ,  H04J3/17 ,  H04L1/201

Abstract: A system and method for dectecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a pluralitz of frames (62); classifzing each of the frames (63); analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame (66). In the illustrative embodiment, the step of classifzing includes the step of error checking the frames using a cyclic redundancz check (CRC) error checking protocol. The received frames are classified as good frames (G), erasureframes (E), or discontinuous frames (D). A numerical value is assigned toe ach of the frames based on the classification thereof. Next, the frames are filtered tp provice an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate the detection of discontinuous frames. That is, a detection of a discontinuous transmisson frame is indicated when a frame is classified as an 'erasure' and the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames of a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.

Abstract translation: 一种用于检测不连续传输（DTX）帧的系统和方法。 本发明的方法包括以下步骤：接收以多个帧（62）发送的数据; 分类每个帧（63）; 分析接收到的数据的多个连续帧的分类并提供关于其的度量; 以及响应于该度量确定帧是否是不连续帧（66）。 在说明性实施例中，分类步骤包括使用循环冗余校验（CRC）错误校验协议来错误检查帧的步骤。 接收的帧被分类为好帧（G），擦除帧（E）或不连续帧（D）。 基于其分类将数值分配给多个帧。 接下来，对帧进行滤波，以提供输出Y n = Y n-1 + X n，其中'n'是帧号，Y n是给定帧n的滤波器输出，Y n-1是前一帧的滤波器输出， Xn是输入帧的流。 为输出Yn设置阈值以便于检测不连续的帧。 也就是说，当帧被分类为“擦除”并且滤波器输出超过阈值时，指示不连续传输帧的检测。 在检测到不连续的帧时，帧的分类从“擦除”变为“不连续”。 通过重新分类不正确分类的擦除帧，禁止移动接收机请求重发发射功率电平变化的帧。 因此，网络吞吐量和容量得到优化，系统功率得到节约。

公开(公告)号：WO2010022407A3

公开(公告)日：2010-06-24

申请号：PCT/US2009059734

申请日：2009-10-06

Applicant: QUALCOMM INC ,  YAVUZ MEHMET ,  LIN YU-CHUAN ,  TOKGOZ YELIZ

Inventor： YAVUZ MEHMET ,  LIN YU-CHUAN ,  TOKGOZ YELIZ

IPC: H04L25/03 ,  H04W36/00

CPC classification number: H04L25/03834 ,  H04W36/0055 ,  H04W84/045

Abstract: A mobile station may include a standard transmit pulse-shaping filter, a standard receive pulse-shaping filter, a narrower transmit pulse-shaping filter, and a narrower receive pulse-shaping filter. A femtocell base station may include a narrower transmit pulse-shaping filter and a narrower receive pulse-shaping filter. The mobile station may utilize the narrower transmit pulse-shaping filter for transmitting uplink signals and the narrower receive pulse-shaping filter for receiving downlink signals when it is receiving service from the femtocell base station. The mobile station may utilize the standard transmit pulse-shaping filter for transmitting uplink signals and the standard receive pulse-shaping filter for receiving downlink signals when it is receiving service from a macrocell base station.

Abstract translation: 移动台可以包括标准发射脉冲整形滤波器，标准接收脉冲整形滤波器，较窄的发射脉冲整形滤波器和较窄的接收脉冲整形滤波器。 毫微微小区基站可以包括较窄的发射脉冲整形滤波器和较窄的接收脉冲整形滤波器。 移动台可以利用较窄的发射脉冲整形滤波器来传输上行链路信号，而较窄的接收脉冲整形滤波器在接收来自毫微微小区基站的服务时接收下行链路信号。 移动台可以利用标准的发送脉冲整形滤波器来发送上行链路信号，以及标准的接收脉冲整形滤波器，用于在从宏小区基站接收服务时接收下行链路信号。

公开(公告)号：WO2010022407A8

公开(公告)日：2010-05-06

申请号：PCT/US2009059734

申请日：2009-10-06

Applicant: QUALCOMM INC ,  YAVUZ MEHMET ,  LIN YU-CHUAN ,  TOKGOZ YELIZ

Inventor： YAVUZ MEHMET ,  LIN YU-CHUAN ,  TOKGOZ YELIZ

IPC: H04L25/03 ,  H04W36/00

CPC classification number: H04L25/03834 ,  H04W36/0055 ,  H04W84/045

Abstract: A mobile station may include a standard transmit pulse-shaping filter, a standard receive pulse-shaping filter, a narrower transmit pulse-shaping filter, and a narrower receive pulse-shaping filter. A femtocell base station may include a narrower transmit pulse-shaping filter and a narrower receive pulse-shaping filter. The mobile station may utilize the narrower transmit pulse-shaping filter for transmitting uplink signals and the narrower receive pulse-shaping filter for receiving downlink signals when it is receiving service from the femtocell base station. The mobile station may utilize the standard transmit pulse-shaping filter for transmitting uplink signals and the standard receive pulse-shaping filter for receiving downlink signals when it is receiving service from a macrocell base station.

Abstract translation: 移动台可以包括标准发射脉冲整形滤波器，标准接收脉冲整形滤波器，较窄发射脉冲整形滤波器和较窄接收脉冲整形滤波器。 毫微微小区基站可以包括较窄的发射脉冲整形滤波器和较窄的接收脉冲整形滤波器。 当移动台正在从毫微微小区基站接收服务时，移动台可利用较窄的发射脉冲整形滤波器来发射上行链路信号，而较窄的接收脉冲整形滤波器用于接收下行链路信号。 当移动台正在接收来自宏小区基站的服务时，可以使用用于传送上行链路信号的标准传送脉冲整形滤波器和用于接收下行链路信号的标准接收脉冲整形滤波器。

公开(公告)号：WO9845966A3

公开(公告)日：1999-01-07

申请号：PCT/US9807302

申请日：1998-04-07

Applicant: QUALCOMM INC

Inventor： TIEDEMANN EDWARD G JR ,  CHEN TAO ,  JOU YU-CHEUN ,  LIN YU-CHUAN

IPC: H04L12/56 ,  H04W28/22 ,  H04W36/02 ,  H04W36/08 ,  H04W36/12 ,  H04W36/18 ,  H04W36/38 ,  H04W72/04 ,  H04W72/12 ,  H04B7/24

CPC classification number: H04W72/1278 ,  H04L47/10 ,  H04L47/14 ,  H04L47/2433 ,  H04L47/30 ,  H04W28/22 ,  H04W36/02 ,  H04W36/18 ,  H04W52/12 ,  H04W52/367 ,  H04W72/1247 ,  H04W72/1252 ,  H04W72/1268

Abstract: A method of and apparatus for scheduling data transmissions in a communication network comprising at least one cell (2a to 2g) and at least one scheduled user (6a to 6e) improves utilization of the reverse link and decreases the transmission delay in data communication. The apparatus comprises a controller (92) for collecting status information for said communication network and for scheduling data transmissions from said at least one cell (2a to 2g) to said at least one scheduled user (6a to 6e). A memory (94) is connected to said controller for storing said status information, and a timer (96) is connected to provide timing signals to said controller (92). The timing signals enable said controller to perform scheduling of data transmission. Each remote station is assigned a maximum unscheduled transmission rate for the duration of the communication with a cell. A maximum scheduled transmission rate can be assigned by a channel scheduler (12) for scheduled transmission of data traffic at high rates. The maximum scheduled transmission rate is assigned in accordance with a set of system goals, a list of system constraints, and collected information on the status of the communication network. Data is partitioned in data frames and transmitted over the reverse link at or below the maximum scheduled transmission rate which have been assigned to the scheduled user.

公开(公告)号：WO9835514A3

公开(公告)日：1998-12-03

申请号：PCT/US9802626

申请日：1998-02-10

Applicant: QUALCOMM INC

Inventor： TIEDEMANN EDWARD G JR ,  LIN YU-CHUAN ,  JOU YU-CHEUN ,  ODENWALDER JOSEPH P

IPC: H04L29/06 ,  H04B7/005 ,  H04B7/26 ,  H04L29/08 ,  H04W28/18 ,  H04W28/20 ,  H04W28/22 ,  H04W52/28 ,  H04W52/34 ,  H04W72/04 ,  H04W72/12 ,  H04Q7/22 ,  H04Q7/38

CPC classification number: H04W52/346 ,  H04B7/2659 ,  H04W28/18 ,  H04W28/22 ,  H04W36/18 ,  H04W52/281 ,  H04W52/34 ,  H04W52/343 ,  H04W72/06 ,  H04W72/1252 ,  H04W72/1273

Abstract: In a communication system capable of variable rate transmission, scheduling of high speed data transmission improves utilization of the forward link and decreases the transmission delay in data communication. Each remote station (6) is assigned one primary code channel for the duration of the communication with a cell. Secondary code channels of various types and transmission capabilities can be assigned by a channel scheduler (12) for scheduled transmission of data traffic at high rates. Secondary code channels are assigned in accordance with a set of system goals, a list of parameters, and collected information on the status of the communication network. Secondary code channels can be grouped into sets of secondary code channels. Data is partitioned in data frames and transmitted over the primary and secondary code channels which have been assigned to the scheduled user.