Preamble group selection in random access of wireless networks

    公开(公告)号:US10785796B2

    公开(公告)日:2020-09-22

    申请号:US15489344

    申请日:2017-04-17

    Abstract: A transport block size (TBS) of a first uplink message (RACH Msg3) transmitted on a Physical Uplink Shared Channel (PUSCH) during a random access procedure in a User Equipment (UE) accessing a radio access network may be determined by receiving a pathloss threshold parameter. A downlink pathloss value indicative of radio link conditions between the UE and a base station (eNB) serving the UE is then determined. A smaller value of TBS is selected from a set of TBS values if the determined pathloss value is greater than an operating power level of the UE minus the pathloss threshold parameter. A larger value of TBS is selected if the pathloss value is less than the operating power level of the UE minus the pathloss threshold parameter and the TBS required to transmit the RACH Msg3 exceeds the smaller TBS value.

    Sounding reference signal processing for LTE

    公开(公告)号:US10567204B2

    公开(公告)日:2020-02-18

    申请号:US15489255

    申请日:2017-04-17

    Abstract: A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting NFFT corresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an NSRS-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.

    Data and control multiplexing in PUSCH in wireless networks

    公开(公告)号:US10461893B2

    公开(公告)日:2019-10-29

    申请号:US15371015

    申请日:2016-12-06

    Abstract: Transmission of information in a wireless network is performed by allocating a channel from a transmitter to a receiver. The channel has at least one time slot with each time slot having a plurality of symbols. Each slot contains at least one reference symbol (RS). As information becomes available for transmission, it is classified as prioritized information (PI) and other information. One or more priority symbols are generated using the digital samples of the priority information. Other symbols are generated using the other data. Priority symbols are transmitted on the channel in a manner that separation of priority symbol(s) and a reference symbol does not exceed a time duration of one symbol. For example, Rank Indicator (RI) is transmitted using symbol k, ACKNAK is transmitted using symbol k+1; and the reference signal (RS) is transmitted using symbol k+2, wherein symbols k, k+1, and k+2 are consecutive in time. The other symbols are transmitted in available locations.

    NLOS WIRELESS BACKHAUL DOWNLINK COMMUNICATION

    公开(公告)号:US20190313403A1

    公开(公告)日:2019-10-10

    申请号:US16408590

    申请日:2019-05-10

    Abstract: A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.

    PREAMBLE GROUP SELECTION IN RANDOM ACCESS OF WIRELESS NETWORKS

    公开(公告)号:US20170223732A1

    公开(公告)日:2017-08-03

    申请号:US15489344

    申请日:2017-04-17

    Abstract: A transport block size (TBS) of a first uplink message (RACH Msg3) transmitted on a Physical Uplink Shared Channel (PUSCH) during a random access procedure in a User Equipment (UE) accessing a radio access network may be determined by receiving a pathloss threshold parameter. A downlink pathloss value indicative of radio link conditions between the UE and a base station (eNB) serving the UE is then determined. A smaller value of TBS is selected from a set of TBS values if the determined pathloss value is greater than an operating power level of the UE minus the pathloss threshold parameter. A larger value of TBS is selected if the pathloss value is less than the operating power level of the UE minus the pathloss threshold parameter and the TBS required to transmit the RACH Msg3 exceeds the smaller TBS value.

    Allocation and Logical to Physical Mapping of Scheduling Request Indicator Channel in Wireless Networks
    18.
    发明申请
    Allocation and Logical to Physical Mapping of Scheduling Request Indicator Channel in Wireless Networks 审中-公开
    无线网络中调度请求指示符信道的物理映射分配和逻辑

    公开(公告)号:US20170048847A1

    公开(公告)日:2017-02-16

    申请号:US15263415

    申请日:2016-09-13

    Abstract: A method for allocating resources for a scheduling request indicator (SRI) is disclosed. An SRI cycle period for use by user equipment (UE) within a cell is transmitted from a NodeB in a cell to UE within the cell. The NodeB transmits a specific SRI subframe offset and an index value to the particular UE within the cell. The specific SRI subframe offset and the index value enable the UE to determine a unique combination of cyclic shift, RS orthogonal cover, data orthogonal cover, and resource block number for the UE to use as a unique physical resource for an SRI in the physical uplink control channel (PUCCH).

    Abstract translation: 公开了一种用于为调度请求指示符(SRI)分配资源的方法。 用于小区内的用户设备(UE)使用的SRI周期从小区中的NodeB发送到小区内的UE。 节点B将特定的SRI子帧偏移和索引值发送到小区内的特定UE。 特定的SRI子帧偏移和索引值使得UE能够确定循环移位,RS正交覆盖,数据正交覆盖和资源块号的唯一组合,以使UE用作物理上行链路中的SRI的唯一物理资源 控制信道(PUCCH)。

    Header Compression for Wireless Backhaul Systems
    20.
    发明申请
    Header Compression for Wireless Backhaul Systems 有权
    无线回程系统的头压缩

    公开(公告)号:US20140369365A1

    公开(公告)日:2014-12-18

    申请号:US14302883

    申请日:2014-06-12

    CPC classification number: H04W28/06 H04L69/04 H04L69/16 H04L69/22

    Abstract: Systems and methods for header compression are described. In various implementations, these systems and methods may be applicable to wireless backhaul systems. For example, a method may include receiving a packet at a backhaul modem from an Ethernet switch, the packet having an uncompressed header comprising a concatenation of at least an Ethernet and an Internet Protocol (IP) header, and a payload; parsing the uncompressed header into a plurality of fields, the plurality of fields including a static field and a derivable field; removing the static field and the derivable field from the uncompressed header; adding a compressed field to the uncompressed header to create a compressed header; and transmitting the packet with the compressed header and the payload over a wireless link.

    Abstract translation: 描述用于报头压缩的系统和方法。 在各种实现中,这些系统和方法可以应用于无线回程系统。 例如,一种方法可以包括从以太网交换机在回程调制解调器处接收分组,所述分组具有包括至少以太网和因特网协议(IP)报头以及有效载荷的级联的未压缩报头; 将未压缩报头解析成多个字段,所述多个字段包括静态字段和可导出字段; 从未压缩报头中去除静态字段和可推导字段; 将压缩字段添加到未压缩报头以创建压缩报头; 以及通过无线链路发送具有压缩报头和有效载荷的分组。

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