公开(公告)号：US07027817B2

公开(公告)日：2006-04-11

申请号：US10618585

申请日：2003-07-15

Applicant: Bruno Jechoux ,  Marian Rudolf

Inventor： Bruno Jechoux ,  Marian Rudolf

IPC: H04Q7/20

CPC classification number: H04B1/7105 ,  H04B7/2618 ,  H04B7/2628 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J13/16 ,  H04J13/18 ,  H04L1/0003 ,  H04L1/0025 ,  H04L1/003 ,  H04L25/0224

Abstract: Method for transmitting an information representative of the number of spreading codes allocated to the mobile stations in communication with a base station of a mobile telecommunication system,wherein it includes the step of:forming a word, said transmitted word, the content of which is representative of the number of spreading codes allocated,including in each transmission burst a general midamble resulting from the sum of selected midambles among all the available midambles, said selection being done by said base station in relation with said transmitted word so that a selected midamble corresponds to a binary element of said transmitted word equal to a first value and a non-selected midamble corresponds to a binary element of said transmitted word equal to second value,considering a received word the elements of which are in one-to-one relationship with the temporal positions of the estimations respectively corresponding to said available midambles.

Abstract translation: 用于发送表示分配给与移动电信系统的基站进行通信的移动台的扩频码的数量的信息的方法，其中包括以下步骤：形成一个单词，所述发送的单词的内容是代表性的 分配的扩展码的数量，包括在每个传输脉冲串中，由所有可用的midambles中的所选中间码的和产生的一般中间码，所述选择由所述基站与所述发送的字相关，使得所选择的中间码对应于 等于第一值的所述发送字的二进制元素和未选择的中间码对应于所述发送字的二进制元素等于第二值，考虑到它们的元素与它们的元素具有一一对应关系的接收字 估计的时间位置分别对应于所述可用的midambles。

公开(公告)号：US07010016B2

公开(公告)日：2006-03-07

申请号：US10025090

申请日：2001-12-19

Applicant: Alex Margulis ,  Rafi Zack ,  Udi Ben-David ,  Dotan Sokolov

Inventor： Alex Margulis ,  Rafi Zack ,  Udi Ben-David ,  Dotan Sokolov

IPC: H04B1/69

CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/70703

Abstract: A spread-spectrum receiver has a high-rate path to receive multi-rate channels and a low-rate path to receive fixed-rate channels. In a wideband code division multiple access (WCDMA) embodiment, the high-rate path despreads multi-rate physical channels having a variable spreading factor and the low-rate path despreads physical channels having a fixed spreading factor. The high-rate path may have high-rate rake fingers to despread multipath components of the multi-rate channels. Each multi-rate channel may have a different spreading code allowing for multicode reception. The high-rate path may also include a high-rate rake with finger engines implemented in hardware to multiply symbols with a channel estimation, and a combiner to combine the multipath components. The low-rate path may include low-rate fingers to despread multipath components of the fixed-rate channels and a processor to generate a channel estimation and coherently combine symbols from the low-rate fingers with the channel estimation.

公开(公告)号：US07003019B2

公开(公告)日：2006-02-21

申请号：US10154108

申请日：2002-05-22

Applicant: Ariela Zeira

Inventor： Ariela Zeira

IPC: H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC classification number: H04J13/0044 ,  H04B1/707 ,  H04B1/7105 ,  H04B2201/70703

Abstract: One aspect of the invention simultaneously estimates data transmitted in a spread spectrum communication system using different spreading factors. A plurality of communication signals are received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The transmitted data is estimated as estimated symbols using codes of a uniform spreading factor. For data transmitted with a spreading factor other than the uniform spreading factor, the estimated symbols of that data is converted to symbols of the code of that data. Another aspect of the invention receives a spread spectrum communication signal having data spread using a plurality of spreading factors. The data of the communication is estimated as estimated symbols using codes of a uniform spreading factor. The estimated symbols are parsed into parcels, where the estimated symbols correspond to data transmitted with a same spreading factor. For parcels not of the uniform spreading factor, the estimated symbols are converted into symbols of the same spreading factor of that parcel.

公开(公告)号：US06999439B2

公开(公告)日：2006-02-14

申请号：US10225204

申请日：2002-08-22

Applicant: Michiaki Takano

Inventor： Michiaki Takano

IPC: H04B7/216

CPC classification number: H04L1/0025 ,  H04B1/66 ,  H04B1/707 ,  H04B1/70735 ,  H04B7/18563 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70703 ,  H04J13/00 ,  H04J13/0077 ,  H04J13/16 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0013 ,  H04L1/0029 ,  H04L1/004 ,  H04L1/0083 ,  H04L27/0012 ,  H04W4/18 ,  H04W28/06 ,  H04W72/042

Abstract: In an information transmission method, a radio communications system, a base station and a mobile station, a TBS size, a modulation scheme and the number of codes in a multicode are converted into identification data having a relatively smaller data size before being transmitted to a destination of communication. The TBS size is identified by using, in combination, an identification code identifying a channelization code set, an identification code identifying a modulation scheme, and an identification code obtained by converting a combination of the number of codes in a multicode and a modulation pattern identification (TFRC) into a corresponding code. Accordingly, the data size for TBS size identification is reduced.

公开(公告)号：US06996401B2

公开(公告)日：2006-02-07

申请号：US10073950

申请日：2002-02-14

Applicant: Pascal Agin

Inventor： Pascal Agin

IPC: H04Q7/20

CPC classification number: H04W28/26 ,  H04B2201/70703 ,  H04B2201/7071 ,  H04J13/0003

Abstract: A method of managing processing resources in a mobile radio system, in which a first entity manages radio resources and corresponding processing resources, the latter being provided in a second entity separate from the first entity. The second entity signals to the first entity its global processing capacity, or capacity credit, and the consumption law, or quantity of the global processing capacity, or cost, for different spreading factor values. The first entity updates the capacity credit on the basis of the consumption law. In the case of multicode transmission using N spreading codes, the updating is effected on the basis of the cost for at least one of the N spreading codes.

公开(公告)号：US06983009B2

公开(公告)日：2006-01-03

申请号：US09765001

申请日：2001-01-18

Applicant: Gary R. Lomp

Inventor： Gary R. Lomp

IPC: H04B15/00 ,  H04K1/00 ,  H04L27/30

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: An improvement for a method and system for tracking a spreading code, used in a code division multiple access (CDMA) system. An input signal has spread-spectrum modulation. The spreading code embedded in the spread-spectrum modulation has a plurality of chips. The input signal is sampled, and half-chip offset samples are formed from the sampled input signal. An even set of the half-chip offset samples are grouped into an early set of samples, and an odd set of the half-chip offset samples are grouped into a late set of samples. Each early set of samples is multiplied by the spreading code c(n+1), c(n+2), . . . , c(n+L), to generate a first plurality of products. L is approximately equal to the number of chips of delay between the earliest and latest multipath signals. A first plurality of sums and magnitudes are computed from the first plurality of products. The first plurality of magnitudes are summed to generate an early signal-energy value. Each late set of samples is multiplied by the spreading-code c(n−1), c(n−2), . . . , c(n−L), thereby generating a second plurality of products. A second plurality of sums and magnitudes are computed from the second plurality of products. The second plurality of magnitudes are summed to generate a late signal-energy value. A difference is calculated between the early signal-energy value and the late signal-energy value, thereby producing an error signal.

Abstract translation: 用于跟踪在码分多址（CDMA）系统中使用的扩展码的方法和系统的改进。 输入信号具有扩频调制。 嵌入在扩频调制中的扩展码具有多个码片。 对输入信号进行采样，并从采样输入信号形成半码片偏移采样。 半组合偏移样本的偶数组被分组为早期采样集合，并且半组合偏移样本的奇数组被分组为后期样本集合。 每个早期的样本集合乘以扩频码c（n + 1），c（n + 2），。 。 。 ，c（n + L），以产生第一多个产品。 L近似等于最早和最新的多径信号之间的延迟码片数。 从第一多个产品中计算出第一多个和值和量值。 将第一多个量值相加以产生早期的信号能量值。 每个后期的样本集合乘以扩展码c（n-1），c（n-2）。 。 。 ，c（n-L），从而产生第二多个产品。 从第二多个产品中计算第二个数量和的数量。 将第二多个量值相加以产生后期信号能量值。 在早期的信号能量值和后期的信号能量值之间计算出差异，从而产生误差信号。

公开(公告)号：US20050271005A1

公开(公告)日：2005-12-08

申请号：US10860680

申请日：2004-06-03

Applicant: Purva Rajkotia

Inventor： Purva Rajkotia

IPC: H04B1/707 ,  H04J11/00 ,  H04W16/04 ,  H04W88/08 ,  H04Q7/00

CPC classification number: H04J13/0048 ,  H04B2201/70703 ,  H04W16/04 ,  H04W88/08

Abstract: A base station for communicating with mobile stations in a coverage area of a wireless network. The base station adapts a coding rate of user data being transmitted to a first mobile station in a forward channel (e.g. a Supplemental Channel) in order to maximize the number of Walsh codes available for use in the base station. The base station adapts the coding rate by increasing the coding rate and then transmitting the user data at the increased coding rate using a longer Walsh code. The longer Walsh code and the increased coding rate are selected in order to meet a target data rate.

Abstract translation: 用于与无线网络的覆盖区域中的移动站进行通信的基站。 基站在正向信道（例如，补充信道）中适配正被发送到第一移动站的用户数据的编码率，以便最大化可用于基站中的沃尔什码的数量。 基站通过增加编码率来适应编码率，然后使用更长的沃尔什码以增加的编码速率发送用户数据。 选择较长的沃尔什码和增加的编码率以便满足目标数据速率。

公开(公告)号：US20050265430A1

公开(公告)日：2005-12-01

申请号：US11181450

申请日：2005-07-14

Applicant: Fatih Ozluturk ,  Gary Lomp

Inventor： Fatih Ozluturk ,  Gary Lomp

IPC: G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  H04B1/69 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/02 ,  H04J13/04 ,  H04L1/00 ,  H04L5/14 ,  H04L25/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/233 ,  H04N1/333

CPC classification number: G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H03H21/0018 ,  H03H2218/06 ,  H04B1/7075 ,  H04B1/70752 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/004 ,  H04J13/10 ,  H04J13/107 ,  H04L1/004 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04W52/08 ,  H04W52/146 ,  H04W52/24 ,  H04W52/26 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system, comprises a generator for generating a first long code and a second long code, with each long code having a length of N chips. The first long code is different from the second long code. A transmitter transmits the first long code and the second long code at a first phase angle and at a second phase angle, respectively, on a carrier signal over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I acquisition circuit and a Q acquisition circuit may acquire, in parallel, the first long code and the second long code from the I angle and the Q angle, respectively, of the carrier signal by searching, in parallel, N/2 chips of the first long code and the second long code.

Abstract translation: 用于在码分多址（CDMA）系统中使用的用于快速获取扩展码的系统包括用于产生第一长码和第二长码的发生器，每个长码具有N个码片的长度。 第一个长代码与第二个长代码不同。 发射机通过使用无线电波的通信信道上的载波信号分别以第一相位角和第二相位角发送第一长码和第二长码。 第一长码和第二长码可以分别在载波信号上以同相（I）角度和正交相位（Q）角发射。 从通信信道，I采集电路和Q采集电路可以并行地通过并行地搜索载波信号的I角度和Q角度的第一长码和第二长码， 第一长码的N / 2码片和第二长码。

公开(公告)号：US20050249168A1

公开(公告)日：2005-11-10

申请号：US11183520

申请日：2005-07-18

Applicant: James Proctor

Inventor： James Proctor

IPC: H04B1/707 ,  H04B1/7075 ,  H04B7/212 ,  H04B7/216 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04J13/18 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L7/06 ,  H04L12/28 ,  H04L12/56 ,  H04L25/14 ,  H04L27/26 ,  H04Q11/04 ,  H04W28/20 ,  H04W28/22 ,  H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W74/00 ,  H04W74/04 ,  H04W84/14

CPC classification number: H04B7/2628 ,  H04B1/7075 ,  H04B1/70754 ,  H04B2001/70706 ,  H04B2201/70703 ,  H04B2201/70709 ,  H04B2201/70715 ,  H04J13/0022 ,  H04J13/004 ,  H04J13/16 ,  H04J13/18 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L7/06 ,  H04L25/14 ,  H04L27/2601 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/20 ,  H04W28/22 ,  H04W56/00 ,  H04W56/0045 ,  H04W56/0075 ,  H04W72/0413 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/04 ,  H04W76/28 ,  H04W84/14

Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism in an idle mode and also request additional channels. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels. Preferably, the code phases of the new channels are assigned according to a predetermined code phase relationship with respect to the code phase of the corresponding maintenance subchannel.

Abstract translation: 一种用于CDMA无线通信的服务选项覆盖，其中通过向每个子信道分配给定长伪噪声（PN）码的不同码相位，在反向链路上定义多个可分配子信道。 然后通过根据需要基于每个网络层连接动态分配一个，一个或多个子信道来满足每个在线订户单元的瞬时带宽需求。 系统有效地在用户单元和反向链路上的基站之间提供相对大量的虚拟物理连接，用于延长的空闲周期，例如当连接到订户单元的计算机被接通而不是当前主动发送或接收数据时。 这些维护子信道允许基站和用户单元在空闲模式下保持同步和时间同步，并且还请求附加信道。 这又允许通过分配新的码相子信道来快速获取附加的子信道。 优选地，根据相应维护子信道的码相位的预定码相位关系来分配新信道的码相位。

公开(公告)号：US06940840B2

公开(公告)日：2005-09-06

申请号：US09791026

申请日：2001-02-21

Applicant: Faith M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

Inventor： Faith M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC: G06F13/374 ,  H03H17/02 ,  H03H17/06 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/04 ,  H04L1/00 ,  H04L5/14 ,  H04L25/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/233 ,  H04N1/333 ,  H04B7/216

CPC classification number: G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

Abstract: A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement method for adaptive reverse power control (APC) from a subscriber unit (SU) to a base station (BS), comprises the steps of sending from the subscriber unit, using spread-spectrum modulation, a SU-spreading code on a reverse channel. The base station despreads the SU-spreading code on the reverse channel as a despread signal, determines a first power level Pd which includes power of the despread signal plus noise and a second power level PN, which includes despread-noise power. The base station determines a first error signal e1, from the first power level Pd, the second power level PN, and a required signal-to-noise ratio SNRREQ for service type, and a second error signal e2, from a measure of total received power Prt at the base station, and an automatic gain control (AGC) set point Po. The base station forms a combined error signal from the first error signal e1, the second error signal e2, a first weight a1, and a second weight a2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the subscriber unit. In response to the APC bit, the subscriber adjusts transmitter power to the base station.

Abstract translation: 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 从用户单元（SU）到基站（BS）的自适应反向功率控制（APC）的改进方法包括以下步骤：使用扩展频谱调制从用户单元发送SU扩频码 渠道。 基站将反向信道上的SU扩展码解扩展为解扩信号，确定包括解扩信号加噪声的功率的第一功率电平P＆lt; D＆gt;和第二功率电平P SUB N＆lt; N＆gt;，其包括解扩噪声功率。 基站从第一功率电平P SUB D＆gt;，第二功率电平P SUB> N＆gt;确定第一误差信号e 1， 对于服务类型的信噪比SNR＆lt; REQ＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt;＆lt; 在基站处，以及自动增益控制（AGC）设定点P 。 基站形成来自第一误差信号e 1 1，第二误差信号e 2 2，第一重量α1，N 2的组合误差信号， 和第二重量2 <2>，并且硬限制组合误差信号以形成单个APC位。 APC位被发送到用户单元。 响应于APC位，用户调整到基站的发射机功率。