公开(公告)号：US08514956B2

公开(公告)日：2013-08-20

申请号：US12780808

申请日：2010-05-14

申请人： Lin Yang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

发明人： Lin Yang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L1/1867 ,  H04L1/0045 ,  H04L1/1607

摘要： Methods, apparatuses, and computer program products are disclosed for facilitating decoding a communication received from a wireless terminal. Encoded bits are received from the wireless terminal via a shared uplink channel, and a plurality of acknowledgment tones are identified within the encoded bits. A correlation value is ascertained corresponding to a correlation between detected bits within the plurality of acknowledgment tones and valid bits corresponding to any of a plurality of valid acknowledgment codewords. A determination is then made as to whether the plurality of acknowledgment tones includes information corresponding to a discontinuous transmission by comparing the correlation value to a threshold value.

摘要翻译： 公开了方法，装置和计算机程序产品，以便于对从无线终端接收的通信进行解码。 经由共享上行链路信道从无线终端接收编码比特，并且在编码比特内识别出多个确认音。 确定对应于多个确认音调中的检测到的比特与对应于多个有效确认码字中的任何一个的有效比特的相关性的相关值。 然后，通过将相关值与阈值相比较来确定多个确认音是否包括与不连续传输相对应的信息。

公开(公告)号：US20110280346A1

公开(公告)日：2011-11-17

申请号：US12780808

申请日：2010-05-14

申请人： Lin Yang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

发明人： Lin Yang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

IPC分类号： H04L27/06

CPC分类号： H04L1/1867 ,  H04L1/0045 ,  H04L1/1607

摘要： Methods, apparatuses, and computer program products are disclosed for facilitating decoding a communication received from a wireless terminal. Encoded bits are received from the wireless terminal via a shared uplink channel, and a plurality of acknowledgment tones are identified within the encoded bits. A correlation value is ascertained corresponding to a correlation between detected bits within the plurality of acknowledgment tones and valid bits corresponding to any of a plurality of valid acknowledgment codewords. A determination is then made as to whether the plurality of acknowledgment tones includes information corresponding to a discontinuous transmission by comparing the correlation value to a threshold value.

摘要翻译： 公开了方法，装置和计算机程序产品，以便于对从无线终端接收的通信进行解码。 经由共享上行链路信道从无线终端接收编码比特，并且在编码比特内识别出多个确认音。 确定对应于多个确认音调中的检测到的比特与对应于多个有效确认码字中的任何一个的有效比特的相关性的相关值。 然后，通过将相关值与阈值相比较来确定多个确认音是否包括与不连续传输相对应的信息。

公开(公告)号：US09820273B2

公开(公告)日：2017-11-14

申请号：US13037213

申请日：2011-02-28

申请人： Xiaoxia Zhang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

发明人： Xiaoxia Zhang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

IPC分类号： H04W72/04

CPC分类号： H04W72/0426 ,  H04W72/04

摘要： Devices, systems, methods and/or computer program products are provided to facilitate coordinated multipoint transmission and reception of communications in a wireless network. In some scenarios, different set of resources are allocated for uplink transmissions of multiple user equipment. In other scenarios collision avoidance and/or multiplexing techniques are used to enable reception and decoding of multiple uplink transmissions on the same or overlapping resources at the same time. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

公开(公告)号：US20120057535A1

公开(公告)日：2012-03-08

申请号：US13037213

申请日：2011-02-28

申请人： Xiaoxia Zhang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

发明人： Xiaoxia Zhang ,  Hao Xu ,  Renqiu Wang ,  Zhifei Fan

IPC分类号： H04W72/04

CPC分类号： H04W72/0426 ,  H04W72/04

摘要： Devices, systems, methods and/or computer program products are provided to facilitate coordinated multipoint transmission and reception of communications in a wireless network. In some scenarios, different set of resources are allocated for uplink transmissions of multiple user equipment. In other scenarios collision avoidance and/or multiplexing techniques are used to enable reception and decoding of multiple uplink transmissions on the same or overlapping resources at the same time. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 提供设备，系统，方法和/或计算机程序产品以便于无线网络中的通信的协调多点发送和接收。 在一些情况下，为多个用户设备的上行链路传输分配不同的资源集合。 在其他情况下，使用冲突避免和/或复用技术来实现在相同或重叠的资源上同时接收和解码多个上行链路传输。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。

公开(公告)号：US09859949B2

公开(公告)日：2018-01-02

申请号：US12986831

申请日：2011-01-07

申请人： Zhifei Fan ,  Renqiu Wang ,  Hao Xu

发明人： Zhifei Fan ,  Renqiu Wang ,  Hao Xu

IPC分类号： H04W52/24 ,  H04B1/7107 ,  H04J11/00

CPC分类号： H04B1/7107 ,  H04J11/0036 ,  H04J11/005

摘要： Blind interference cancellation is described for wireless networks in which a subject base station or cancellation apparatus obtains semi-static information for at least one of its neighboring cells. The base station measures the noise level of each of the neighboring cells based on samples it takes of uplink transmissions in each of the neighboring cells. The neighboring cells are then ranked for interference cancellation based on their relative noise levels. The base station performs discontinuous transmission (DTX) detection to identify at least one interfering user equipment (UE) in the neighboring cell and cancels interference attributable to those identified interfering UEs. The DTX detection and cancellation are then repeated for the remaining neighboring cells in the order they are ranked.

公开(公告)号：US20120008511A1

公开(公告)日：2012-01-12

申请号：US12986831

申请日：2011-01-07

申请人： Zhifei Fan ,  Renqiu Wang ,  Hao Xu

发明人： Zhifei Fan ,  Renqiu Wang ,  Hao Xu

IPC分类号： H04W52/02 ,  H04W24/00

CPC分类号： H04B1/7107 ,  H04J11/0036 ,  H04J11/005

摘要： Blind interference cancellation is described for wireless networks in which a subject base station or cancellation apparatus obtains semi-static information for at least one of its neighboring cells. The base station measures the noise level of each of the neighboring cells based on samples it takes of uplink transmissions in each of the neighboring cells. The neighboring cells are then ranked for interference cancellation based on their relative noise levels. The base station performs discontinuous transmission (DTX) detection to identify at least one interfering user equipment (UE) in the neighboring cell and cancels interference attributable to those identified interfering UEs. The DTX detection and cancelation are then repeated for the remaining neighboring cells in the order they are ranked.

摘要翻译： 对于无线网络描述盲目干扰消除，其中对象基站或取消装置获得其相邻小区中的至少一个的半静态信息。 基站基于每个相邻小区中的上行链路传输所采用的样本来测量每个相邻小区的噪声电平。 然后，相邻小区基于它们的相对噪声水平被排列用于干扰消除。 基站执行不连续传输（DTX）检测以识别相邻小区中的至少一个干扰用户设备（UE），并且消除归因于那些识别的干扰UE的干扰。 然后按照排序的顺序对剩余的相邻小区重复DTX检测和取消。

公开(公告)号：US20120008516A1

公开(公告)日：2012-01-12

申请号：US13179416

申请日：2011-07-08

申请人： Ke Liu ,  Zhifei Fan ,  Hao Xu ,  Xiaoxia Zhang

发明人： Ke Liu ,  Zhifei Fan ,  Hao Xu ,  Xiaoxia Zhang

IPC分类号： H04W24/00

CPC分类号： H04W56/0045 ,  H04W56/005 ,  H04W72/04

摘要： Certain aspects of the present disclosure provide techniques for wireless communications, wherein more accurate timing offset calculations may be achieved for uplink transmissions with a relatively small number of assigned resources.

摘要翻译： 本公开的某些方面提供了用于无线通信的技术，其中可以对具有相对较少数量的分配资源的上行链路传输实现更精确的定时偏移计算。

公开(公告)号：US20090245284A1

公开(公告)日：2009-10-01

申请号：US12407161

申请日：2009-03-19

申请人： Hao Xu ,  Zhifei Fan

发明人： Hao Xu ,  Zhifei Fan

IPC分类号： H04J3/24

CPC分类号： H04L1/0028 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/0073 ,  H04L1/1671

摘要： Techniques for sending control information in a wireless communication system are described. In one design, a user equipment (UE) may map first information (e.g., CQI information) to M most significant bits (MSBs) of a message and may map second information (e.g., ACK information) to N least significant bits (LSBs) of the message if the second information is sent, where M≧1 and N≧1. The UE may encode the message with a block code, e.g., encode the M MSBs with the first M basis sequences of the block code and encode the N LSBs with the next N basis sequences of the block code. The second information may include N ACK bits. The UE may set each ACK bit to a first value for an ACK or to a second value for a NACK. The second value may also be used for discontinuous transmission (DTX) of ACK information.

摘要翻译： 描述用于在无线通信系统中发送控制信息的技术。 在一种设计中，用户设备（UE）可将第一信息（例如，CQI信息）映射到消息的M个最高有效位（MSB），并将第二信息（例如，ACK信息）映射到N个最低有效位（LSB） 的消息，如果第二个信息被发送，其中M> = 1和N> = 1。 UE可以用块码对消息进行编码，例如用块码的第一M个基本序列对M个MSB进行编码，并用块码的下一个N个基本序列对N个LSB进行编码。 第二信息可以包括N个ACK位。 UE可以将每个ACK位设置为ACK的第一值或针对NACK的第二值。 第二个值也可用于ACK信息的不连续传输（DTX）。

公开(公告)号：US20090196247A1

公开(公告)日：2009-08-06

申请号：US12364405

申请日：2009-02-02

申请人： Zhifei Fan ,  Hao Xu ,  Xiaoxia Zhang

发明人： Zhifei Fan ,  Hao Xu ,  Xiaoxia Zhang

IPC分类号： H04W72/12

CPC分类号： H04W72/0413 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/1268

摘要： Systems and methodologies are described that facilitate simultaneous transmission of control information in a single sub-frame. For instance, simultaneous transmission can maintain single carrier waveforms for a control channel even when a plurality of information types is scheduled in concurrently. Channel quality indicators, scheduling requests and acknowledgement messages can be jointly coded. In addition, reference symbols in a sub-frame can be modulated to indicate values associated with a scheduling request or an acknowledgement message. Moreover, in situations where channel quality indicators, scheduling requests and or acknowledgement messages are simultaneously scheduled, one or more can be dropped. Further, a single carrier constraint can be relaxed to enable simultaneous transmission of information in the sub-frame at different frequencies.

摘要翻译： 描述了便于在单个子帧中同时传输控制信息的系统和方法。 例如，即使当并行调度多个信息类型时，同时传输也可以保持用于控制信道的单载波波形。 信道质量指示符，调度请求和确认消息可以被联合编码。 此外，子帧中的参考符号可以被调制以指示与调度请求或确认消息相关联的值。 此外，在同时调度信道质量指示符，调度请求和确认消息的情况下，可以丢弃一个或多个。 此外，可以放宽单载波约束以使得能够以不同频率在子帧中同时传输信息。

公开(公告)号：US08854945B2

公开(公告)日：2014-10-07

申请号：US13292985

申请日：2011-11-09

申请人： Peter Gaal ,  Zhifei Fan ,  Yongbin Wei ,  Hao Xu

发明人： Peter Gaal ,  Zhifei Fan ,  Yongbin Wei ,  Hao Xu

IPC分类号： H04L12/28 ,  H04W52/16 ,  H03G3/30 ,  H04J1/16 ,  H04W52/24

CPC分类号： H03G3/3078 ,  H04W52/16 ,  H04W52/244

摘要： In wireless communications, adaptive gain control may be performed by scaling of signals before and after a transform. A received signal power may be non-causally scaled to a first level within a desired range before transforming the received signal. The scaled signal is transformed between a time domain to a frequency domain and then its power is again non-causally scaled based on the first level. A feed forward circuit may be used in the power scaling. Different portions of the signal may be power adjusted independently of other portions. The different portions may be separated on a per-channel basis. Power scaling may be done on a symbol-by-symbol basis.

摘要翻译： 在无线通信中，可以通过缩放变换之前和之后的信号来执行自适应增益控制。 在变换接收到的信号之前，接收到的信号功率可以在期望范围内被非因果地缩放到第一电平。 缩放的信号在时域到频域之间变换，然后基于第一级再次非因果地缩放它的功率。 可以在功率缩放中使用前馈电路。 信号的不同部分可以独立于其它部分进行功率调节。 可以在每个通道的基础上分离不同的部分。 功率缩放可以在逐个符号的基础上进行。