Feedback techniques for wireless communications

    公开(公告)号:US11190975B2

    公开(公告)日:2021-11-30

    申请号:US15713335

    申请日:2017-09-22

    Abstract: Methods, systems, and devices for wireless communication are described that provide for generation of an encoded transport block (TB) that includes a number of systematic code blocks (CBs) and a number of parity CBs. The systematic CBs may be transmitted to a receiver, and the receiver may attempt to decode the systematic CBs. In some cases, one or more parity CBs may be transmitted with the systematic CBs, and the systematic CBs may be successfully decoded even in the event that one or more of the systematic CBs are not successfully received. In some cases, a receiver may provide feedback that requests that additional CBs be transmitted to decode the systematic CBs that were received, and it is not necessary to retransmit the missing systematic CBs. In some cases, a quantized value of a number of additional CBs needed to decode the TB may be transmitted.

    MODEM ASSISTED CONTENTION HANDLING OF MULTIPLE ACTIVE CONNECTIONS IN WIRELESS COMMUNICATIONS

    公开(公告)号:US20200008093A1

    公开(公告)日:2020-01-02

    申请号:US16554330

    申请日:2019-08-28

    Abstract: Aspects of the present disclosure provide wireless communication devices and methods configured to operate with multiple active connections. A user equipment establishes a first active connection associated with a first subscription. The user equipment also establishes a second active connection, simultaneous to the first active connection, associated with a second subscription. The user equipment provides modem information corresponding to connection qualities of the first active connection and second active connection, to an operating system of the user equipment. Furthermore, the user equipment mitigates contention between the first active connection and second active connection by degrading at least one of the first active connection or second active connection in accordance with a decision given by the operating system based on the modem information.

    Mutual-information based recursive polar code construction

    公开(公告)号:US10523369B2

    公开(公告)日:2019-12-31

    申请号:US15849034

    申请日:2017-12-20

    Abstract: Decoding and encoding methods, systems, and devices for wireless communication are described. One method may include receiving a codeword over a wireless channel, the codeword being encoded using a polar code, identifying a set of repeated bit locations in the received codeword, and identifying a set of bit locations of the polar code used for information bits for the encoding. The set of bit locations may be determined based at least in part on recursively partitioning bit-channels of the polar code for each stage of polarization and assigning portions of a number of the information bits to bit-channel partitions of each stage of polarization based on a mutual information transfer function of respective aggregate capacities of the bit-channel partitions. The method may also include decoding the received codeword according to the polar code to obtain an information bit vector at the set of bit locations, and other aspects and features.

    Opportunistic Mobile Receive Diversity (OMRD) in a Dual-SIM Dual-Active (DSDA) Device
    15.
    发明申请
    Opportunistic Mobile Receive Diversity (OMRD) in a Dual-SIM Dual-Active (DSDA) Device 有权
    双卡双待(DSDA)设备中的机会性移动接收分集(OMRD)

    公开(公告)号:US20150282057A1

    公开(公告)日:2015-10-01

    申请号:US14307577

    申请日:2014-06-18

    CPC classification number: H04B7/0871 H04W8/183 H04W8/22 H04W88/06

    Abstract: Methods and devices are disclosed for implementing opportunistic mobile receive diversity (“OMRD”) on a multi-SIM wireless device. The wireless device may receive a request from a protocol stack associated with the first SIM to utilize the second RF resource for receive diversity, and determine whether a protocol stack associated with the second SIM currently has a lower priority than the protocol stack associated with the first SIM. Upon determining that the protocol stack associated with the second SIM currently has a lower priority than the protocol stack associated with the first SIM, the wireless device may grant control of the second RF resource to the protocol stack associated with the first SIM. Granting control may provide, to the protocol stack associated with the first SIM, a capability to enable and disable receive diversity using the first and second RF resources.

    Abstract translation: 公开了用于在多SIM无线设备上实现机会性移动接收分集(“OMRD”)的方法和设备。 无线设备可以从与第一SIM相关联的协议栈接收请求以利用第二RF资源进行接收分集,并且确定与第二SIM相关联的协议栈当前是否具有比与第一SIM相关联的协议栈更低的优先级 SIM卡 当确定与第二SIMS相关联的协议栈当前具有比与第一SIM相关联的协议栈更低的优先级时,无线设备可以将第二RF资源的控制权授予与第一SIM相关联的协议栈。 允许控制可以向与第一SIM相关联的协议栈提供使用第一和第二RF资源来启用和禁用接收分集的能力。

    DUAL-SIM WIRELESS COMMUNICATIONS DEVICE AND METHOD FOR MITIGATING RECEIVER DESENSE IN DUAL-ACTIVE OPERATION
    16.
    发明申请
    DUAL-SIM WIRELESS COMMUNICATIONS DEVICE AND METHOD FOR MITIGATING RECEIVER DESENSE IN DUAL-ACTIVE OPERATION 有权
    双重无线通信设备和方法,用于在双主动操作中减少接收机信号

    公开(公告)号:US20140274201A1

    公开(公告)日:2014-09-18

    申请号:US13830301

    申请日:2013-03-14

    CPC classification number: H04W88/06 H04B1/3827 H04B1/525 H04B2001/3861

    Abstract: Aspects of the disclosure provide for an access terminal configured to enable communication with two or more wireless communications networks simultaneously. According to some aspects of the disclosure, an access terminal (e.g., dual-SIM access terminal) can be active simultaneously on both networks with reduced interference between transmission and reception. A number of different techniques for mitigating desense on a victim's Rx are illustrated in this disclosure with a GSM aggressor and an EV-DO victim as non-limiting examples. Other aspects, embodiments, and features are also claimed and described

    Abstract translation: 本公开的方面提供了被配置为能够同时与两个或更多个无线通信网络进行通信的接入终端。 根据本公开的一些方面,接入终端(例如,双SIM接入终端)可以在两个网络上同时有效地发送和接收之间的干扰减小。 在本公开中用GSM攻击者和EV-DO受害者作为非限制性示例说明了许多用于减轻受害者的Rx上的费用的不同技术。 还要求和描述其它方面,实施例和特征

    EARLY TERMINATION OF SUCCESSIVE CANCELLATION LIST DECODING

    公开(公告)号:US20210152191A1

    公开(公告)日:2021-05-20

    申请号:US16605911

    申请日:2017-05-15

    Abstract: Techniques are described herein to terminate a list decoding operation before its completion based on performing one or more error check processes. A transmitted codeword encoded using a polar code may include one or more error check vectors interspersed with one or more information vectors. Upon receiving the codeword, a decoder may perform a list decoding operation on the received codeword. Upon decoding one of the error check vectors, the decoder may determine whether at least one candidate path used in the successive cancellation list decoding operation passes an error check process based on the error check vector. If no candidate paths satisfy the error check process, the decoder may terminate the list decoding operation. In some examples, the decoder may recheck whether candidate paths satisfy the error check operation at intermediate positions between error check vectors. Such rechecking may occur while decoding information vectors.

    Payload size ambiguity and false alarm rate reduction for polar codes

    公开(公告)号:US10686469B2

    公开(公告)日:2020-06-16

    申请号:US15953239

    申请日:2018-04-13

    Abstract: Size ambiguity and false alarm rate reduction for polar codes. A user equipment (UE) may determine a decoding candidate bit sequence for a polar-encoded codeword having a codeword size based on a decoding hypothesis for control information having a particular bit length of multiple different bit lengths for the codeword size. The UE may calculate an error detection code (EDC) value for a payload portion of the decoding candidate bit sequence using an EDC algorithm, and may initialize an EDC variable state with at least one non-zero bit value. Scrambling or interleaving of bits may also be performed prior to, or after, polar encoding and may depend on the bit length. In examples, information bits may be bit-reversed prior to generating an EDC value. In examples, the encoded bits may include multiple EDC values to assist the UE in performing early termination and to reduce a false alarm rate.

    MODEM ASSISTED CONTENTION HANDLING OF MULTIPLE ACTIVE CONNECTIONS IN WIRELESS COMMUNICATIONS
    20.
    发明申请
    MODEM ASSISTED CONTENTION HANDLING OF MULTIPLE ACTIVE CONNECTIONS IN WIRELESS COMMUNICATIONS 审中-公开
    MODEM辅助内容处理无线通信中的多个主动连接

    公开(公告)号:US20170013606A1

    公开(公告)日:2017-01-12

    申请号:US15270934

    申请日:2016-09-20

    Abstract: Aspects of the present disclosure provide wireless communication devices and methods configured to operate with multiple active connections. A user equipment establishes a first active connection associated with a first subscription. The user equipment also establishes a second active connection, simultaneous to the first active connection, associated with a second subscription. The user equipment provides modem information corresponding to connection qualities of the first active connection and second active connection, to an operating system of the user equipment. Furthermore, the user equipment mitigates contention between the first active connection and second active connection by degrading at least one of the first active connection or second active connection in accordance with a decision given by the operating system based on the modem information.

    Abstract translation: 本公开的方面提供了配置成与多个活动连接一起操作的无线通信设备和方法。 用户设备建立与第一订阅相关联的第一活动连接。 用户设备还建立与第二订阅相关联的与第一活动连接同时的第二活动连接。 用户设备向用户设备的操作系统提供对应于第一活动连接和第二主动连接的连接质量的调制解调器信息。 此外,用户设备通过根据操作系统基于调制解调器信息给出的决定降级第一活动连接或第二活动连接中的至少一个来减轻第一活动连接和第二主动连接之间的争用。

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