公开(公告)号：US20090097396A1

公开(公告)日：2009-04-16

申请号：US12298679

申请日：2006-11-14

Applicant: Guanbin Xing ,  Dong Bai ,  Yibin Liang ,  Qihong Ge ,  Wen Chen

Inventor： Guanbin Xing ,  Dong Bai ,  Yibin Liang ,  Qihong Ge ,  Wen Chen

IPC: H04J11/00

CPC classification number: H04L25/067 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613

Abstract: The present invention provides a method for transmitting/receiving a continuous pilot code in a multi-carrier system. The method for transmitting comprises: performing a time-frequency domain two dimensional encoding on an information bit stream to be transmitted; mapping the encoded bit stream to obtain a continuous pilot carrying encoding information; multiplexing a load, a discrete pilot and the mapped continuous pilot carrying the encoding information based on distribution of the load, the discrete pilot and the continuous pilot on a sub-carrier, to generate a frequency domain signal; and performing a frequency-time domain transforming on the generated frequency domain signal, to obtain a time domain sample. The method for receiving comprises: extracting the continuous pilot from an active carrier of a multi-carrier signal; and performing a time-frequency domain decoding on the extracted continuous pilots to obtain the decision of transmitted information bits. The invention ensures reliable transmission of the information without using additional bandwidth resource by carrying information in the continuous pilots using an encoding scheme.

Abstract translation: 本发明提供一种在多载波系统中发送/接收连续导频码的方法。 发送方法包括：对要发送的信息比特流执行时间 - 频域二维编码; 映射编码比特流以获得携带编码信息的连续导频; 基于负载分布，离散导频和子载波上的连续导频来复用负载，离散导频和携带编码信息的映射连续导频，以产生频域信号; 并对所生成的频域信号进行频域变换，得到时域采样。 所述接收方法包括：从多载波信号的有效载波中提取所述连续导频; 并对所提取的连续导频执行时频域解码以获得所发送的信息比特的决定。 本发明通过使用编码方案在连续导频中携带信息来确保信息的可靠传输，而不需要使用额外的带宽资源。

公开(公告)号：US20080260064A1

公开(公告)日：2008-10-23

申请号：US12123022

申请日：2008-05-19

Applicant: Manyuan Shen ,  Guanbin Xing ,  Hui Liu

Inventor： Manyuan Shen ,  Guanbin Xing ,  Hui Liu

IPC: H04B7/02

CPC classification number: H04L1/0625 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0669 ,  H04B7/068 ,  H04L27/2626 ,  H04L2001/0092

Abstract: A method and system for cooperative multiple-input multiple output (MIMO) transmission operations in a multicell wireless network. Under the method, antenna elements from two or more base stations are used to from an augmented MIMO antenna array that is used to transmit and receive MIMO transmissions to and from one or more terminals. The cooperative MIMO transmission scheme supports higher dimension space-time-frequency processing for increased capacity and system performance.

Abstract translation: 一种用于多单元无线网络中的协作多输入多输出（MIMO）传输操作的方法和系统。 在该方法下，来自两个或更多个基站的天线元件用于从用于向一个或多个终端发送MIMO MIMO传输和从一个或多个终端接收MIMO传输的增强MIMO天线阵列。 协同MIMO传输方案支持更高维度的时空处理，以提高容量和系统性能。

公开(公告)号：US20080151813A1

公开(公告)日：2008-06-26

申请号：US11645110

申请日：2006-12-22

Applicant: Guanbin Xing ,  Manyuan Shen

Inventor： Guanbin Xing ,  Manyuan Shen

IPC: H04B7/212

CPC classification number: H04W56/0015 ,  H04J3/0605 ,  H04J3/0682 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2686 ,  H04W92/10

Abstract: A system and method of signal detection is provided. A received signal may be correlated with combinations of reference signals, each combination representing a subset of the reference signals, rather than being correlated with each reference signal individually. Once the timing offset has been found, the specific reference signal matching the received signal may be found with a one-dimensional (1D) search. A large 2-D search is thus reduced to a smaller 2-D search followed by a 1-D search. The system and method may be applied to downlink initial acquisition in mobile WiMAX systems.

Abstract translation: 提供了一种信号检测系统和方法。 接收到的信号可以与参考信号的组合相关联，每个组合表示参考信号的子集，而不是分别与每个参考信号相关。 一旦找到定时偏移，可以用一维（1D）搜索找到与接收信号匹配的特定参考信号。 因此，大的2-D搜索被减少到更小的2-D搜索，随后是1-D搜索。 该系统和方法可以应用于移动WiMAX系统中的下行链路初始采集。

公开(公告)号：US20080043610A1

公开(公告)日：2008-02-21

申请号：US11925229

申请日：2007-10-26

Applicant: Xiaodong Li ,  Hui Liu ,  Hujun Yin ,  Guanbin Xing ,  Fuqi Mu

Inventor： Xiaodong Li ,  Hui Liu ,  Hujun Yin ,  Guanbin Xing ,  Fuqi Mu

IPC: H04J11/00

CPC classification number: H04L5/0037 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L5/0023 ,  H04L5/006 ,  H04L5/023 ,  H04L27/2608 ,  H04W24/00 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/085 ,  H04W84/02

Abstract: A method and apparatus for subcarrier selection for systems is described. In one embodiment, the system employs orthogonal frequency division multiple access (OFDMA). In one embodiment, a method for subcarrier selection comprises a subscriber measuring channel and interference information for subcarriers based on pilot symbols received from a base station, the subscriber selecting a set of candidate subcarriers, providing feedback information on the set of candidate subcarriers to the base station, and receiving an indication of subcarriers of the set of subcarriers selected by the base station for use by the subscriber.

Abstract translation: 描述了用于系统的子载波选择的方法和装置。 在一个实施例中，系统采用正交频分多址（OFDMA）。 在一个实施例中，一种用于子载波选择的方法包括用户测量信道和基于从基站接收的导频符号的子载波干扰信息，用户选择一组候选子载波，向基站提供关于候选子载波集合的反馈信息 并且接收由所述基站选择以供所述用户使用的所述一组子载波的子载波的指示。

公开(公告)号：US20080032731A1

公开(公告)日：2008-02-07

申请号：US11491470

申请日：2006-07-21

Applicant: Manyuan Shen ,  Guanbin Xing

Inventor： Manyuan Shen ,  Guanbin Xing

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04W72/0473 ,  H04W4/06 ,  H04W52/343 ,  H04W52/346 ,  H04W52/40 ,  H04W72/048

Abstract: A system and method of wireless communication power control is provided which allows for adjusting power levels without requiring high bandwidth for control. Embodiments allocate subcarriers into unequal power groups, each group having a consistent subcarrier power level. Using interference parameter information from a user, a subcarrier is assigned from a group having adequate power to maintain the user's required power level. In general, users with higher power requirements, such as those near cell boundaries, will be assigned subcarriers from a group having a higher power level. A cell may use a different allocation than a neighbor, so that subcarriers with the highest power level in one cell may not also have the highest power level in a neighboring cell. Such diversity may reduce inter-cell interference of the subcarriers near a cell boundary, since no two subcarriers are transmitted with highest power simultaneously by neighboring base stations.

Abstract translation: 提供了一种无线通信功率控制的系统和方法，其允许调整功率水平，而不需要高带宽用于控制。 实施例将副载波分配到不等功率组中，每组具有一致的副载波功率电平。 使用来自用户的干扰参数信息，从具有足够功率的组分配子载波以维持用户所需的功率电平。 一般来说，具有较高功率要求的用户（例如小区边界附近的用户）将被从具有较高功率级别的组中分配副载波。 小区可以使用与邻居不同的分配，使得一个小区中具有最高功率电平的子载波在相邻小区中可能不具有最高功率电平。 这种分集可以减少小区边界附近的子载波的小区间干扰，因为相邻基站同时以最高的功率发送两个子载波。

公开(公告)号：US20080020772A1

公开(公告)日：2008-01-24

申请号：US11491554

申请日：2006-07-21

Applicant: Manyuan Shen ,  Guanbin Xing

Inventor： Manyuan Shen ,  Guanbin Xing

IPC: H04Q7/20

CPC classification number: H04B7/0615 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/066 ,  H04L27/2626 ,  H04W28/06 ,  H04W48/20 ,  H04W72/0413 ,  H04W72/10

Abstract: Advantage is taken of the fact that downlink quality is always known at a mobile station. Thus, a base station may use preference information from the mobile station as a basis for assigning a channel, rather than requiring the details of channel conditions. In one embodiment, the base station pre-selects orthogonal beam-forming vectors for subcarriers and broadcasts the channels into different sectors of the region served by base station. The mobile stations then determine a priority (based for example on received quality) order of the codes of the received vectors. This priority order is sent uplink to the base station and the base station then, based on a priority listing of vectors from the mobile station, selects the downlink sub-channel. The vectors may be established with some degree of randomness, or may be based on a desired beam coverage profile.

Abstract translation: 优点在于移动站总是知道下行链路质量。 因此，基站可以使用来自移动站的偏好信息作为分配信道的基础，而不是要求信道条件的细节。 在一个实施例中，基站预先选择用于子载波的正交波束形成向量，并将信道广播到由基站服务的区域的不同扇区中。 然后，移动站确定接收到的向量的代码的优先级（例如，基于接收的质量）顺序。 该优先顺序是向基站发送上行链路，基于来自移动台的向量的优先级列表，选择下行链路子信道。 可以以某种程度的随机性建立向量，或者可以基于期望的波束覆盖简档。