公开(公告)号：US5856971A

公开(公告)日：1999-01-05

申请号：US504481

申请日：1995-07-20

Applicant: Richard Dennis Gitlin ,  Chih-Lin I

Inventor： Richard Dennis Gitlin ,  Chih-Lin I

IPC: H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/18 ,  H04J99/00 ,  H04L1/00 ,  H04L1/08

CPC classification number: H04L1/0041 ,  H04B7/264 ,  H04J13/0048 ,  H04J13/107 ,  H04J13/18 ,  H04L1/0022 ,  H04L1/08 ,  H04B2201/70705 ,  H04L1/0059 ,  H04L1/0071 ,  H04W52/26

Abstract: A multi-code code division multiple access system allows a user at a radio transmitter unit to dynamically change its source data bit rate. In response to a user input selecting one of said plurality of source bit rates, an adjustable coding means in the transmitter spreads and transmits the user's digital bit stream received at the selected bit rate to a channel bit rate which at least equals the highest bit rate of said plurality of source bit rates. The plurality of source bit rates includes a basic bit rate R and at least one bit rate which is a multiple M of the basic bit rate R, where M is an integer of at least 1. The user's input selects a particular user source bit rate by identifying a basic bit rate multiple M to a base station that is to receive the transmission.

Abstract translation: 多码分码多址系统允许无线电发射机单元的用户动态地改变其源数据比特率。 响应于选择所述多个源比特率之一的用户输入，发射机中的可调节编码装置将以所选比特率接收的用户数字比特流扩展并发送至至少等于最高比特率的信道比特率 的所述多个源比特率。 多个源比特率包括基本比特率R和至少一个比特率，其是基本比特率R的多M，其中M是至少为1的整数。用户的输入选择特定用户源比特率 通过向要接收传输的基站识别基本位速率M M。

公开(公告)号：US5784360A

公开(公告)日：1998-07-21

申请号：US811092

申请日：1997-03-03

Applicant: Chih-Lin I ,  Krishan Kumar Sabnani

Inventor： Chih-Lin I ,  Krishan Kumar Sabnani

IPC: H04B7/005 ,  H04B7/26 ,  H04J15/00 ,  H04W52/26 ,  H04W52/28 ,  H04B7/216

CPC classification number: H04W52/265 ,  H04W52/267 ,  H04W52/288

Abstract: The invention relates to the use of CDMA techniques. Data signals to be transmitted from a plurality of wireless devices are spread across a common bandwidth. The data signals are received by a base station as a composite spread signal. The base station partially despreads the composite spread signal with unique codes to extract data signals from individual wireless devices. The data rate and quality of service requirements for each wireless device are used to calculate a power factor and a control signal is sent to control the power from a particular wireless device. In addition, a probability of transmission value is calculated based on an equivalent current load value and an equivalent population value. The probability of transmission value determines whether a particular wireless device is allowed access to an uplink frequency channel.

Abstract translation: 本发明涉及CDMA技术的应用。 要从多个无线设备发送的数据信号在公共带宽上扩展。 数据信号由基站作为复合扩展信号接收。 基站用独特的代码部分地解扩复合扩展信号，以从各个无线设备提取数据信号。 使用每个无线设备的数据速率和服务质量要求来计算功率因数，并且发送控制信号以控制来自特定无线设备的功率。 此外，基于等效电流负载值和等效总体值计算发送价值的概率。 传输值的概率确定特定的无线设备是否允许访问上行链路频道。