利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

31 条记录 (耗时 0.044 秒)

    Apparatus and method for supporting handover in a broadband wireless access communication system
    5.
    发明授权
    Apparatus and method for supporting handover in a broadband wireless access communication system 有权
    一种用于在宽带无线接入通信系统中支持切换的装置和方法

    公开(公告)号：US07782816B2

    公开(公告)日：2010-08-24

    申请号：US11156169

    申请日：2005-06-17

    申请人： Jae-Weon Cho ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Chi-Woo Lim ,  Young-Bin Chang ,  Seung-Joo Maeng ,  Myung-Kwang Byun

    发明人： Jae-Weon Cho ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Chi-Woo Lim ,  Young-Bin Chang ,  Seung-Joo Maeng ,  Myung-Kwang Byun

    IPC分类号： H04W4/00

    CPC分类号： H04W16/10 ,  H04W36/18

    摘要： Disclosed is a method for supporting a handover in a broadband wireless access communication system which includes a mobile subscriber station, a serving base station currently providing service to the mobile subscriber station, and a plurality of adjacent base stations different from the serving base station, in which each of the base stations includes cells using subchannel bands different from each other, the method including establishing a set of base stations which currently provide wireless channels for data transmission/reception to the mobile subscriber station; classifying, by each base station, entire subchannels into a plurality of sets of subchannels; and allocating each of the sets of subchannels obtained by the classification to a PUSC (Partial Usage of Subchannels) subchannel area of each sector, wherein, every base stations included in an active set select an equal number of PUSC subchannels from among a PUSC subchannel area allocated to each of the base stations and allocate the selected PUSC subchannels to the mobile subscriber station, and the mobile subscriber station receives a downlink signal transmitted through each of PUSC subchannel areas and performs a predetermined combining of all signals received from each of the BSs.

    摘要翻译： 公开了一种在宽带无线接入通信系统中支持切换的方法，该系统包括移动用户台，当前向移动用户站提供服务的服务基站以及与服务基站不同的多个相邻基站， 所述基站中的每一个包括使用彼此不同的子信道频带的小区，所述方法包括建立一组基站，所述基站当前为所述移动用户台提供数据发送/接收的无线信道; 将每个基站将整个子信道分类成多组子信道; 并且将通过分类获得的每个子信道组分配给每个扇区的PUSC（子信道的部分使用）子信道区域，其中，包括在活动集中的每个基站从PUSC子信道区域中选择相等数量的PUSC子信道 分配给每个基站，并将所选择的PUSC子信道分配给移动用户站，并且移动用户站接收通过每个PUSC子信道区域发送的下行链路信号，并执行从每个BS接收的所有信号的预定组合。

    Apparatus and method for supporting handover in a broadband wireless access communication system
    6.
    发明申请
    Apparatus and method for supporting handover in a broadband wireless access communication system 有权
    一种用于在宽带无线接入通信系统中支持切换的装置和方法

    公开(公告)号：US20050288020A1

    公开(公告)日：2005-12-29

    申请号：US11156169

    申请日：2005-06-17

    申请人： Jae-Weon Cho ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Chi-Woo Lim ,  Young-Bin Chang ,  Seung-Joo Maeng ,  Myung-Kwang Byun

    发明人： Jae-Weon Cho ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Chi-Woo Lim ,  Young-Bin Chang ,  Seung-Joo Maeng ,  Myung-Kwang Byun

    IPC分类号： H04B7/26 ,  H04W16/10 ,  H04W36/18 ,  H04Q7/20

    CPC分类号： H04W16/10 ,  H04W36/18

    摘要： Disclosed is a method for supporting a handover in a broadband wireless access communication system which includes a mobile subscriber station, a serving base station currently providing service to the mobile subscriber station, and a plurality of adjacent base stations different from the serving base station, in which each of the base stations includes cells using subchannel bands different from each other, the method including establishing a set of base stations which currently provide wireless channels for data transmission/reception to the mobile subscriber station; classifying, by each base station, entire subchannels into a plurality of sets of subchannels; and allocating each of the sets of subchannels obtained by the classification to a PUSC (Partial Usage of Subchannels) subchannel area of each sector, wherein, every base stations included in an active set select an equal number of PUSC subchannels from among a PUSC subchannel area allocated to each of the base stations and allocate the selected PUSC subchannels to the mobile subscriber station, and the mobile subscriber station receives a downlink signal transmitted through each of PUSC subchannel areas and performs a predetermined combining of all signals received from each of the BSs.

    摘要翻译： 公开了一种在宽带无线接入通信系统中支持切换的方法，该系统包括移动用户台，当前向移动用户站提供服务的服务基站以及与服务基站不同的多个相邻基站， 所述基站中的每一个包括使用彼此不同的子信道频带的小区，所述方法包括建立一组基站，所述基站当前为所述移动用户台提供数据发送/接收的无线信道; 将每个基站将整个子信道分类成多组子信道; 并且将通过分类获得的每个子信道组分配给每个扇区的PUSC（子信道的部分使用）子信道区域，其中，包括在活动集中的每个基站从PUSC子信道区域中选择相等数量的PUSC子信道 分配给每个基站，并将所选择的PUSC子信道分配给移动用户站，并且移动用户站接收通过每个PUSC子信道区域发送的下行链路信号，并执行从每个BS接收的所有信号的预定组合。

    Apparatus and method for transmitting uplink control information in OFDMA communication systems
    8.
    发明授权
    Apparatus and method for transmitting uplink control information in OFDMA communication systems 有权
    用于在OFDMA通信系统中发送上行控制信息的装置和方法

    公开(公告)号：US07729234B2

    公开(公告)日：2010-06-01

    申请号：US11106216

    申请日：2005-04-14

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00 ,  H04B7/216 ,  G08C25/02

    CPC分类号： H04L5/023

    摘要： Disclosed are an apparatus and a method for transmitting uplink control information in an OFDMA communication system. The method, in which the uplink control information is transmitted using an ACK channel in the OFDMA communication system, includes the steps of receiving data bits of the uplink control information, outputting transmit symbols of sub-carriers by performing orthogonal modulation with respect to symbols for codewords of the received data bits, and inverse fast fourier transforming and transmitting a transmit signal including bundles of sub-carriers allocated the modulated transmit symbols.

    摘要翻译： 公开了一种在OFDMA通信系统中发送上行链路控制信息的装置和方法。 在OFDMA通信系统中使用ACK信道发送上行链路控制信息的方法包括以下步骤：接收上行链路控制信息的数据比特，通过对符号进行正交调制，输出子载波的发送符号， 接收数据位的码字，以及反向快速傅里叶变换和发送包括分配调制发送符号的子载波束的发送信号。

    Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system
    9.
    发明授权
    Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system 有权
    用于在OFDMA通信系统中发送上行确认信息的方法和装置

    公开(公告)号：US07586834B2

    公开(公告)日：2009-09-08

    申请号：US11141155

    申请日：2005-05-31

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00

    CPC分类号： H04L27/30 ,  H04L1/1692 ,  H04L1/1829 ,  H04L1/1867

    摘要： A method and apparatus for transmitting uplink acknowledge information (ACK) in a communication system using an orthogonal frequency division multiple access (OFDMA) scheme. The method includes receiving a data bit for the uplink ACK; outputting codewords corresponding to the data bit; performing quadrature phase shift keying (QPSK) modulation on symbols for ACK vector indexes corresponding to the codewords for the received data bit; performing inverse fast Fourier transform (IFFT) on a transmission signal having subcarrier clusters to which the modulated transmission symbols are allocated; and transmitting the IFFT-processed transmission signal.

    摘要翻译： 一种用于在使用正交频分多址（OFDMA）方案的通信系统中发送上行确认信息（ACK）的方法和装置。 该方法包括接收用于上行链路ACK的数据比特; 输出与该数据比特对应的码字; 对与所接收的数据位的码字相对应的ACK向量索引的符号执行正交相移键控（QPSK）调制; 对具有分配有调制的发送符号的子载波簇的发送信号进行快速傅立叶逆变换（IFFT）; 并发送经IFFT处理的传输信号。

    Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system
    10.
    发明授权
    Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system 有权
    用于在OFDMA通信系统中发送上行链路快速反馈信息的方法和装置

    公开(公告)号：US07508751B2

    公开(公告)日：2009-03-24

    申请号：US11142708

    申请日：2005-06-01

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00 ,  H04L27/00 ,  H04B7/00

    CPC分类号： H04L27/2602 ,  H04L1/0028 ,  H04L1/0073 ,  H04L5/023 ,  H04L27/2627

    摘要： An apparatus and method for transmitting uplink fast feedback information using a fast feedback channel in an orthogonal frequency division multiple access (OFDMA) communication system. A channel encoder selects information data for uplink fast feedback information, and determines a codeword from a pre-determined codeword set corresponding to the selected information data. A non-coherent modulator chooses transmission symbols by performing orthogonal modulation according to the determined codeword based on a predetermined modulation pattern, and maps the chosen symbols into sub-carriers. An inverse fast Fourier transform (IFFT) block performs an inverse fast Fourier transform (IFFT) on the mapped symbols and transmits the IFFT processed mapped symbols.

    摘要翻译： 一种用于在正交频分多址（OFDMA）通信系统中使用快速反馈信道发送上行快速反馈信息的装置和方法。 信道编码器选择用于上行链路快速反馈信息的信息数据，并且从对应于所选择的信息数据的预定码字集合确定码字。 非相干调制器通过根据所确定的码字基于预定的调制模式执行正交调制来选择发送符号，并将所选择的符号映射成子载波。 逆快速傅里叶变换（IFFT）块对映射符号执行快速傅里叶逆变换（IFFT），并发送IFFT处理的映射符号。