Time slot sharing in TDMA communication system
    51.
    发明授权
    Time slot sharing in TDMA communication system 有权
    TDMA通信系统中的时隙共享

    公开(公告)号:US09100963B2

    公开(公告)日:2015-08-04

    申请号:US13877518

    申请日:2010-10-07

    CPC classification number: H04W72/0446 H04L1/08 H04L27/18 H04W28/04

    Abstract: The embodiments of the present invention relate to a method in a transmitting unit; a method in a receiving unit; a transmitting unit and a receiving unit, in a wireless communication network employing Time Division Multiple Access, TDMA, for transmitting and, receiving and demodulating data, respectively, the data being transmitted in a signal comprising a burst, wherein bursts relating to NMS number of mobile stations are multiplexed into a single time slot. The transmission comprises grouping a block of N b number of user code bits, representing the data to be transmitted, into NDS/NMS groups of user code bits. Mapping the groups of user code bits to data symbols such that one group is represented by one data symbol, thereby obtaining a block of data symbols, wherein each data symbol is drawn from one or more pre-defined complex-valued symbol constellation(s). The transmission further comprises repeating the block of data symbols, such that the burst to be transmitted comprises NMS number of equal blocks of data symbols, rotating the NMS number of blocks of data symbols according to a mobile-station-specific rotation, and transmitting the rotated blocks of data symbols in a burst in the time slot.

    Abstract translation: 本发明的实施例涉及发送单元中的方法; 接收单元中的方法; 发射单元和接收单元,在采用时分多址(TDMA)的无线通信网络中,分别用包括脉冲串的信号中的数据发送和接收和接收数据,所述信号包括突发,其中与NMS号 移动台被复用到单个时隙中。 传输包括将表示要发送的数据的N b个用户码位块的块分组成用户码位的NDS / NMS组。 将用户代码位组映射到数据符号,使得一个组由一个数据符号表示,从而获得数据符号块,其中每个数据符号从一个或多个预定义复值符号星座绘制, 。 传输还包括重复数据符号块,使得要传输的突发包括NMS个数量相等的数据符号块,根据移动站特定的旋转来旋转数据符号块的NMS个数, 在时隙中的突发中旋转的数据符号块。

    Receiver for voice services over adaptive multi-user channels on one slot
    52.
    发明授权
    Receiver for voice services over adaptive multi-user channels on one slot 有权
    接收机用于在一个插槽上通过自适应多用户信道进行语音服务

    公开(公告)号:US08867644B2

    公开(公告)日:2014-10-21

    申请号:US13141252

    申请日:2009-06-24

    Applicant: Miguel Lopez

    Inventor: Miguel Lopez

    CPC classification number: H04L25/03006 H04L2025/03426

    Abstract: A receiver, in particular a VAMOS receiver, is provided. The receiver is adapted to split the complex-valued baseband signal into its real and imaginary parts. The two branch system thus created is modeled as a real-valued Multiple Input Multiple Output, MIMO, system. The receiver is further adapted to use correlations of the noise, both in time and between branches of a channel to suppress the noise for multi-users in the same channel. In accordance with one embodiment the receiver is adapted to take into account the known symmetries present in a symbol constellation when more than one user exists in the same channel. This is for example the case in adaptive symbol constellation such as an adaptive alpha-QPSK constellation. Using the receiver in accordance with the above can provide the same performance as a joint detection receiver in the presence of Gaussian white noise, while giving better interference suppression than either SAIC or joint detection in the presence of GMSK modulated interference.

    Abstract translation: 提供接收机,特别是VAMOS接收机。 接收机适于将复值基带信号分解成其实部和虚部。 由此创建的两个分支系统被建模为实数多输入多输出MIMO系统。 接收机还适于在时间上和频道的分支之间使用噪声的相关性,以抑制同一信道中多用户的噪声。 根据一个实施例,当多个用户存在于同一信道中时,接收机适于考虑存在于符号星座中的已知对称性。 这是例如自适应符号星座中的情况,例如自适应α-QPSK星座。 在存在高斯白噪声的情况下,使用接收机可以提供与联合检测接收机相同的性能,同时在存在GMSK调制干扰的同时给出比SAIC或联合检测更好的干扰抑制。

    Receiver for MUROS adapted to estimate symbol constellation using training sequences from two sub-channels
    53.
    发明授权
    Receiver for MUROS adapted to estimate symbol constellation using training sequences from two sub-channels 有权
    用于MUROS的接收机适用于使用来自两个子信道的训练序列来估计符号星座

    公开(公告)号:US08774248B2

    公开(公告)日:2014-07-08

    申请号:US12864772

    申请日:2008-11-04

    CPC classification number: H04L25/0212 H04L25/0224 H04L25/0242 H04L27/22

    Abstract: A receiver is provided that is configured to estimate the symbol constellation of a signal modulated using a quaternary symbol constellation where data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches, where the branches correspond to the real and imaginary parts of one complex-valued baseband signal. The receiver is configured to demodulate the modulated signal using the training sequences from both sub-channels.

    Abstract translation: 提供了一种接收机,其被配置为估计使用四进制符号星座调制的信号的符号星座,其中数据被发送到在包括两个分支的共享信道上复用的两个移动台,其中分支对应于一个的实部和虚部 复值基带信号。 接收机被配置为使用来自两个子信道的训练序列来解调调制信号。

    Method of power control
    54.
    发明授权
    Method of power control 有权
    功率控制方法

    公开(公告)号:US08760993B2

    公开(公告)日:2014-06-24

    申请号:US12864753

    申请日:2008-10-29

    Abstract: In a method and a transmitter data is transmitted to two mobile stations sharing the same frequency band and the same timeslot. The data is modulated using a quaternary symbol constellation. Further, the data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches and the transmission power for the transmitted data is set in response to the relative gain of the two branches. Hereby, the total system interference is reduced. The method and transmitter further allows for a cellular radio system individual power control loops for the two sub-channels when the system uses MUROS.

    Abstract translation: 在一种方法中,发射机数据被发送到共享相同频带和相同时隙的两个移动台。 使用四元符号星座调制数据。 此外,将数据发送到在包括两个分支的共享信道上复用的两个移动台,并且响应于两个分支的相对增益来设置所发送的数据的发送功率。 因此,减少了总的系统干扰。 当系统使用MUROS时,该方法和发射机还允许蜂窝无线电系统用于两个子信道的单独的功率控制环路。

    DATA MODULATION
    57.
    发明申请
    DATA MODULATION 有权
    数据调制

    公开(公告)号:US20120236967A1

    公开(公告)日:2012-09-20

    申请号:US13512973

    申请日:2009-12-21

    CPC classification number: H04L27/36 H04L1/0041 H04L27/3405

    Abstract: A modulator includes a symbol mapper that is configured to map respective bits sets of a bit sequence corresponding to a burst and including data, training, tail, and guard bits into respective symbols to form a symbol sequence of data, training, tail, and guard symbols. A vector precoder is configured to apply a vector precoding transformation to the data and training symbols to form precoded symbols. These precoded symbols are combined with the tail and guard symbols in a symbol processor to form a sequence of transmit symbols. The record precoding conducted by the modulator of a transmitter enables improved link performance without the cost of increased processing complexity of the receiver algorithm.

    Abstract translation: 调制器包括符号映射器,其被配置为将与突发相对应的比特序列的各个比特组映射到包括数据,训练,尾部和保护比特到相应符号中以形成数据,训练,尾部和后卫的符号序列 符号。 向量预编码器被配置为向数据和训练符号应用向量预编码变换以形成预编码符号。 这些预编码符号与符号处理器中的尾部和保护符号组合以形成发送符号序列。 由发射机的调制器执行的记录预编码器能够改善链路性能,而不会增加接收机算法的处理复杂度。

    Method for repetitive transmissions
    58.
    发明授权
    Method for repetitive transmissions 有权
    重复传输方法

    公开(公告)号:US08195258B2

    公开(公告)日:2012-06-05

    申请号:US12527535

    申请日:2007-02-16

    Abstract: The present invention relates to method, and apparatus relating to cellular radio communication (300). By communicating information repeatedly in either an uplink or a downlink connection by directing a main lobe of a radiation pattern (331-1 to 331-n; 335-1 to 335-n) of the communication in different directions (d1, d2, d2, d4) in the cell (361,362) of the cellular radio communication network (300) the reception of repetitive transmission of any information in both uplink and downlink connection with as little complexity added to the network as possible is improved.

    Abstract translation: 本发明涉及与蜂窝无线电通信有关的方法和装置(300)。 通过在不同方向(d1,d2,d3)上引导通信的辐射图形(331-1至331-n; 335-1至335-n)的主瓣,在上行链路或下行链路连接中重复地传送信息 ,d4)在蜂窝无线电通信网络(300)的小区(361,362)中改善了尽可能少的复杂性在上行链路和下行链路连接中的任何信息的重复发送的接收。

    Method and Arrangement for Enabling Improved Receiver Quality for Noise Limited Uplink Signals
    59.
    发明申请
    Method and Arrangement for Enabling Improved Receiver Quality for Noise Limited Uplink Signals 有权
    用于提高噪声有限上行链路信号接收机质量的方法和布置

    公开(公告)号:US20110212741A1

    公开(公告)日:2011-09-01

    申请号:US13127280

    申请日:2008-11-04

    CPC classification number: H04L1/06 H04L1/0036 H04W88/08

    Abstract: In a method for enabling improved quality for noise limited uplink signals in a radio base station in a telecommunication system, said radio base station comprising a plurality of transceiver units, each comprising at least one receiver unit, adaptively allocating (S10) available transceiver units to enable parallel processing of an identified noise limited signal on at least two separate receiver units in the radio base station. And, combining (S20) the parallel processed noise limited calls to provide a received signal with improved signal to noise ratio.

    Abstract translation: 在一种用于在电信系统中的无线电基站中实现对噪声限制上行链路信号的改进质量的方法中,所述无线电基站包括多个收发机单元,每个收发信机单元包括至少一个接收机单元,自适应地将(S10)可用的​​收发器单元分配到 使得能够在无线电基站中的至少两个分离的接收机单元上对所识别的噪声限制信号进行并行处理。 并且,组合(S20)并行处理的噪声限制呼叫,以提供具有改善的信噪比的接收信号。

    Method of Power Control
    60.
    发明申请
    Method of Power Control 有权
    功率控制方法

    公开(公告)号:US20100302990A1

    公开(公告)日:2010-12-02

    申请号:US12864753

    申请日:2008-10-29

    Abstract: In a method and a transmitter data is transmitted to two mobile stations sharing the same frequency band and the same timeslot. The data is modulated using a quaternary symbol constellation. Further, the data is transmitted to two mobile stations multiplexed on a shared channel comprising two branches and the transmission power for the transmitted data is set in response to the relative gain of the two branches. Hereby, the total system interference is reduced. The method and transmitter further allows for a cellular radio system individual power control loops for the two sub-channels when the system uses MUROS.

    Abstract translation: 在一种方法中,发射机数据被发送到共享相同频带和相同时隙的两个移动台。 使用四元符号星座调制数据。 此外,将数据发送到在包括两个分支的共享信道上复用的两个移动台,并且响应于两个分支的相对增益来设置所发送的数据的发送功率。 因此,减少了总的系统干扰。 当系统使用MUROS时,该方法和发射机还允许蜂窝无线电系统用于两个子信道的单独的功率控制环路。

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