Variable rate spread spectrum communication method and apparatus
    2.
    发明授权
    Variable rate spread spectrum communication method and apparatus 有权
    可变速率扩频通信方法及装置

    公开(公告)号:US06366601B1

    公开(公告)日:2002-04-02

    申请号:US09442367

    申请日:1999-11-17

    IPC分类号: H04L2730

    摘要: A communication system (100) provides selecting a first modulation-coding scheme (111) based on a quality indicator of a communication between a source user and a first destination user, determining a first possible number of data bits (201) that can be modulated and encoded according to selected modulation-coding scheme (111) and spread according to one spreading code of a plurality of spreading codes (108-1 through 108-k) which results in fitting in a predetermined time frame, determining a first number of data bits (102) to be transmitted from the source user to the first destination user, determining a first load level based on comparing first number of data bits (102) and first possible number of data bits (201), and, if the first load level is unequal to a whole number, rounding to a next first whole number, selecting a first number of plurality of spreading codes (108-1 through 108-k) based on the first whole number of load level for spread coding of first number of data bits (102) after being modulated and coded according to selected modulation-coding scheme (111).

    摘要翻译: 通信系统(100)提供基于源用户和第一目的用户之间的通信的质量指示符来选择第一调制编码方案(111),确定可调制的数据比特(201)的第一可能数量 并根据所选择的调制编码方案(111)进行编码,并根据多个扩展码(108-1至108-k)中的一个扩展码进行扩展,这导致在预定时间帧内拟合,确定第一数量的数据 要从源用户发送到第一目的用户的比特(102),基于比较第一数量比特(102)和第一可能数量的数据比特(201)来确定第一负载水平,以及如果第一负载 电平不等于整数,四舍五入到下一个第一整数,基于第一数量的扩展编码的第一整数负载电平来选择第一数量的扩展码(108-1至108-k) 数据位(1 02),根据选择的调制编码方案(111)进行调制编码。

    Variable rate spread spectrum communication method and apparatus
    3.
    发明授权
    Variable rate spread spectrum communication method and apparatus 有权
    多通道停止和等待ARQ通信方法和装置

    公开(公告)号:US06275488B1

    公开(公告)日:2001-08-14

    申请号:US09442250

    申请日:1999-11-17

    IPC分类号: H04B7212

    摘要: A method in a communication system (100) includes transmitting from a source user (101) a first data packet (111) over a first time frame (121) having a finite time period (131), transmitting from source user (101) a second data packet (112) over a second time frame (122) immediately subsequent to first time frame (121), detecting an acknowledgment of acceptable reception of data packet associated with either first or said second data packets (111 and 112), repeating transmission of first and second data packets (111 and 112) in a sequence of first and second time frames (121 and 122) in a time frame sequence (190) until the detection.

    摘要翻译: 通信系统(100)中的方法包括:通过具有有限时间段(131)的第一时间帧(121)从源用户(101)发送第一数据分组(111),从源用户(101)a 在第一时间帧(121)之后的第二时间帧(122)上的第二数据分组(112),检测与第一或所述第二数据分组(111和112)相关联的数据分组的可接受接收的确认,重复传输 在第一和第二时间帧(121和122)的序列中的时间序列(190)中的第一和第二数据分组(111和112)直到检测。

    Method and apparatus for preventing received data from corrupting previously processed data in a wireless communications system
    5.
    发明授权
    Method and apparatus for preventing received data from corrupting previously processed data in a wireless communications system 有权
    用于防止接收的数据在无线通信系统中破坏先前处理的数据的方法和装置

    公开(公告)号:US07158482B2

    公开(公告)日:2007-01-02

    申请号:US10068443

    申请日:2002-02-06

    摘要: A communication system includes a forward link from a base station to multiple mobile units, the forward link having multiple shared channels (SHCH's), multiple shared control channels (SHCCH's), and multiple dedicated pointer control channels (DPTRCH's), and utilizes HARQ error control for error detection and error correction. The mobile unit, when listening to the DPTRCH, uses a SHCCH pointed to by the DPTRCH to demodulate and decode data on the SHCH. Throughput problems may arise in the system when the mobile unit combines and decodes the wrong SHCH data, that is, SHCH data that is intended for a different mobile unit, or may incorrectly decodes SHCH data that is intended for the mobile unit. In order to improve the data throughput of the system, the systems employs a flush test and an energy detector test to prevent improperly decoded data blocks from corrupting properly decoded data blocks.

    摘要翻译: 通信系统包括从基站到多个移动单元的前向链路,具有多个共享信道(SHCH)的前向链路,多个共享控制信道(SHCCH)和多个专用指针控制信道(DPTRCH)),并且利用HARQ错误控制 用于错误检测和纠错。 移动单元在收听DPTRCH时使用由DPTRCH指向的SHCCH对SHCH上的数据进行解调和解码。 当移动单元组合和解码错误的SHCH数据,即针对不同移动单元的SHCH数据,或可能不正确地解码旨在用于移动单元的SHCH数据时,系统中可能出现吞吐量问题。 为了提高系统的数据吞吐量,系统采用冲洗测试和能量检测器测试,以防止不正确解码的数据块破坏正确解码的数据块。

    Method and apparatus for conveying control channel information in OFDMA system
    6.
    发明授权
    Method and apparatus for conveying control channel information in OFDMA system 有权
    在OFDMA系统中传送控制信道信息的方法和装置

    公开(公告)号:US08611300B2

    公开(公告)日:2013-12-17

    申请号:US11623373

    申请日:2007-01-16

    IPC分类号: H04W4/00

    摘要: Various embodiments are described which can serve to mitigate interference between the control channel signaling of adjacent sectors/cells. Potentially, these techniques may have the benefit of reducing the system resource drain caused by control channels, particularly control channels in high frequency-reuse, OFDMA systems. A transmitting device (101) transmits primary control channel information to a plurality of user devices (102). The primary control channel information includes an indication that a first OFDMA resource region (e.g., 320 or 330) is assigned to at least one user device of the plurality of user devices. The transmitting device correspondingly transmits secondary control channel information to the at least one user device using the first OFDMA resource region.

    摘要翻译: 描述了可以用于减轻相邻扇区/小区的控制信道信令之间的干扰的各种实施例。 潜在地,这些技术可能有利于减少由控制信道,特别是高频率重用的OFDMA系统中的控制信道引起的系统资源消耗。 发送装置(101)向多个用户装置(102)发送主控制信道信息。 主控制信道信息包括第一OFDMA资源区域(例如320或330)被分配给多个用户设备中的至少一个用户设备的指示。 所述发送设备使用所述第一OFDMA资源区域将所述辅助控制信道信息相应地发送到所述至少一个用户设备。

    METHOD AND APPARATUS FOR DOWNLINK RESOURCE ALLOCATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM
    7.
    发明申请
    METHOD AND APPARATUS FOR DOWNLINK RESOURCE ALLOCATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM 有权
    正交频分多址通信系统中下行链路资源分配的方法与装置

    公开(公告)号:US20080192847A1

    公开(公告)日:2008-08-14

    申请号:US12023054

    申请日:2008-01-31

    IPC分类号: H04K1/10

    摘要: A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.

    摘要翻译: 提供了在同一频道中调度分布式虚拟资源块(DVRB)和本地化虚拟资源块(LVRB)的通信,从而在最小化上行链路反馈开销的同时获得频率选择性调度的优点。 在本发明的一个实施例中,通信系统向给定LVRB的每个用户设备(UE)分配多个下行链路物理资源块(PRB)的一个或多个下行链路物理资源块(PRB),以产生至少一个保留的PRB和多个非 并且为给定DVRB的UE分配多个非保留PRB的每个PRB的一部分。 在本发明的另一个实施例中,通信系统将为局部传输预先预留的PRB分配给被调度用于LVRB的UE,并且为给定DVRB的每个UE分配预先分配的传输的多个PRB的一部分。

    METHOD AND APPARATUS FOR CONVEYING CONTROL CHANNEL INFORMATION IN OFDMA SYSTEM
    8.
    发明申请
    METHOD AND APPARATUS FOR CONVEYING CONTROL CHANNEL INFORMATION IN OFDMA SYSTEM 有权
    在OFDMA系统中传输控制信道信息的方法和装置

    公开(公告)号:US20070165731A1

    公开(公告)日:2007-07-19

    申请号:US11623373

    申请日:2007-01-16

    IPC分类号: H04K1/10

    摘要: Various embodiments are described which can serve to mitigate interference between the control channel signaling of adjacent sectors/cells. Potentially, these techniques may have the benefit of reducing the system resource drain caused by control channels, particularly control channels in high frequency-reuse, OFDMA systems. A transmitting device (101) transmits primary control channel information to a plurality of user devices (102). The primary control channel information includes an indication that a first OFDMA resource region (e.g., 320 or 330) is assigned to at least one user device of the plurality of user devices. The transmitting device correspondingly transmits secondary control channel information to the at least one user device using the first OFDMA resource region.

    摘要翻译: 描述了可以用于减轻相邻扇区/小区的控制信道信令之间的干扰的各种实施例。 潜在地,这些技术可能有利于减少由控制信道,特别是高频率重用的OFDMA系统中的控制信道引起的系统资源消耗。 发送装置(101)向多个用户装置(102)发送主控制信道信息。 主控制信道信息包括第一OFDMA资源区域(例如320或330)被分配给多个用户设备中的至少一个用户设备的指示。 所述发送设备使用所述第一OFDMA资源区域将所述辅助控制信道信息相应地发送到所述至少一个用户设备。

    Method and apparatus for selecting a communication data rate between mobile and base stations
    9.
    发明授权
    Method and apparatus for selecting a communication data rate between mobile and base stations 有权
    用于在移动台和基站之间选择通信数据速率的方法和装置

    公开(公告)号:US06253063B1

    公开(公告)日:2001-06-26

    申请号:US09490606

    申请日:2000-01-25

    IPC分类号: H04B100

    摘要: A mobile station (110) selects an initial data rate for communication between base station (107) and mobile station (110). Mobile station (110) communicates the selected initial data rate to base station (107) through uplink (112). Base station (107) determines a difference level of interference condition experienced by mobile station (107) between a time when the initial data rate was selected by mobile station (110) and a time when base station (107) prepares to communicate to mobile station (110). Base station (107) selects a final data rate for transmission from base station (107) to mobile station (110) based on the determined difference level of interference condition. As such, the initial data rate may be modified to the final data rate while maximizing the down link capacity.

    摘要翻译: 移动台(110)为基站(107)和移动台(110)之间的通信选择初始数据速率。 移动站(110)通过上行链路(112)将所选择的初始数据速率传送到基站(107)。 基站(107)确定移动台(110)在初始数据速率被移动台(110)选择的时间与基站(107)准备与移动台通信的时间之间的移动台(107)所经历的干扰状况的差异水平 (110)。 基站(107)基于所确定的干扰条件差异来选择用于从基站(107)到移动台(110)的传输的最终数据速率。 因此,可以将最初的数据速率修改为最终数据速率,同时最大化下行链路容量。

    METHOD AND APPARATUS FOR DOWNLINK RESOURCE ALLOCATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM
    10.
    发明申请
    METHOD AND APPARATUS FOR DOWNLINK RESOURCE ALLOCATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM 有权
    正交频分多址通信系统中下行链路资源分配的方法与装置

    公开(公告)号:US20120069764A1

    公开(公告)日:2012-03-22

    申请号:US13308587

    申请日:2011-12-01

    摘要: A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.

    摘要翻译: 提供了在同一频道中调度分布式虚拟资源块(DVRB)和本地化虚拟资源块(LVRB)的通信,从而在最小化上行链路反馈开销的同时获得频率选择性调度的优点。 在本发明的一个实施例中,通信系统向给定LVRB的每个用户设备(UE)分配多个下行链路物理资源块(PRB)的一个或多个下行链路物理资源块(PRB),以产生至少一个保留的PRB和多个非 并且为给定DVRB的UE分配多个非保留PRB的每个PRB的一部分。 在本发明的另一个实施例中,通信系统将为局部传输预先预留的PRB分配给被调度用于LVRB的UE,并且为给定DVRB的每个UE分配预先分配的传输的多个PRB的一部分。