公开(公告)号：WO2020068350A1

公开(公告)日：2020-04-02

申请号：PCT/US2019/048727

申请日：2019-08-29

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  XUE, Yisheng ,  DAMNJANOVIC, Aleksandar ,  SUN, Jing ,  KADOUS, Tamer ,  WEI, Yongbin

IPC: H04W72/04 ,  H04W74/08 ,  H04W16/14

Abstract: Wireless communications systems and methods related to communications with narrowband wireless communication devices over a wide frequency band are provided. A first wireless communication device transmits a first configuration indicating a first set of channel monitoring occasions for a first channel and a second set of channel monitoring occasions for a second channel. The first wireless communication device transmits, in the first channel based on at least a listen- before-talk (LBT) in the first channel, a first occupancy indication signal indicating a first transmission opportunity (TXOP) in the first channel. The first wireless communication device transmits, in the first channel based on the first configuration, a second occupancy indication signal associated with the first TXOP in the first channel during a channel monitoring occasion of the first set of channel monitoring occasions within the first TXOP.

公开(公告)号：WO2019231612A1

公开(公告)日：2019-12-05

申请号：PCT/US2019/030623

申请日：2019-05-03

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Aleksandar ,  ZHANG, Xiaoxia ,  WEI, Yongbin ,  YERRAMALLI, Srinivas ,  KADOUS, Tamer ,  RADULESCU, Andrei Dragos

IPC: H04W48/12 ,  H04B1/713 ,  H04B7/12 ,  H04W48/16 ,  H04W56/00

Abstract: Cell acquisition is disclosed in frequency diversity configured for frame based equipment (FBE) access, such as using opportunistic frequency switching. A user equipment (UE) begins cell acquisition by synchronizing to an available communication channel of an available cell in response to detection of a synchronization signal block (SSB) associated with a network on which the UE communicates. The UE receives system information associated with the available cell from a serving base station, wherein the system information includes identification of at least: a link indicator identifying linked communication channels available for opportunistic switching, sensing occasion offsets for each of the linked channels, and access information associated with each of the linked channels. The UE measures a channel quality for each available channel. The base station transmits this system information on each of the linked channels and then monitors the allocated random access resources for signals from the UEs.

公开(公告)号：WO2019213383A1

公开(公告)日：2019-11-07

申请号：PCT/US2019/030382

申请日：2019-05-02

Applicant: QUALCOMM INCORPORATED

Inventor： RADULESCU, Andrei Dragos ,  YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  DAMNJANOVIC, Aleksandar ,  KADOUS, Tamer ,  SUN, Jing ,  WEI, Yongbin

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/00 ,  H04L5/00 ,  H04W74/08

Abstract: Scheduling around frame based equipment (FBE) idle periods reduces the flexibility of scheduling and partitioning. This leads to a latency caused by waiting for the next downlink scheduling opportunity and skipping over unused uplink scheduling slots. According to certain aspects, to reduce overhead caused by idle time and ensure full downlink scheduling, a base station (BS) alternates between idle periods and channel occupancy time every fixed frame period with one or more other synchronized BSs, between components carriers of the BS, or both. Thus, a BS can always schedule downlink on a carrier during an idle period scheduled for a different BS and/or a different carrier.

公开(公告)号：WO2019212924A1

公开(公告)日：2019-11-07

申请号：PCT/US2019/029543

申请日：2019-04-27

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Aleksandar ,  KADOUS, Tamer ,  WEI, Yongbin ,  ZHANG, Xiaoxia ,  YERRAMALLI, Srinivas

IPC: H04W16/10 ,  H04W72/12 ,  H04L5/00

Abstract: Wireless communications systems and methods related to coordinating shared radio resources for spectrum sharing are provided. A spectrum resource control unit allocates a first resource for exclusive access by a first network operating entity in a spectrum. The exclusive access is configured for at least one of a network information communication or a feedback communication. The spectrum resource control unit allocates a second resource in the spectrum for shared access by the first network operating entity and a second network operating entity. The shared access is configured for at least a downlink control information communication. The spectrum resource control unit transmits, to the first network operating entity and the second network operating entity, a configuration indicating the first resource allocated for exclusive access by the first network operating entity and the second resource allocated for shared access by the first network operating entity and the second network operating entity.

公开(公告)号：WO2019212898A1

公开(公告)日：2019-11-07

申请号：PCT/US2019/029396

申请日：2019-04-26

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  SUN, Jing ,  YERRAMALLI, Srinivas ,  KADOUS, Tamer ,  WEI, Yongbin

IPC: H04W74/08

Abstract: Aligned listen before talk (LBT) gaps for single operator frame-based equipment (FBE) mode new radio (NR) shared spectrum (NR-SS) is disclosed. Within the FBE mode network, the base station determines a plurality of potential transmission bursts within a fixed frame period. The base station may then reserve a plurality of LBT gaps prior to the starting position of each such transmission burst. The base station communicates the location of each of the LBT gaps to all neighboring network entities and contends for access to the fixed frame period at the beginning of the frame regardless of whether it has data for transmission during the frame. Each neighboring base station that receives the LBT gaps locations will use the same locations in order to align the LBT gaps over the FBE mode network.

公开(公告)号：WO2019152414A1

公开(公告)日：2019-08-08

申请号：PCT/US2019/015667

申请日：2019-01-29

Applicant: QUALCOMM INCORPORATED

Inventor： BHATTAD, Kapil ,  SUN, Jing ,  ZHANG, Xiaoxia ,  WEI, Yongbin ,  KADOUS, Tamer ,  YERRAMALLI, Srinivas ,  LUO, Tao

IPC: H04W74/08 ,  H04B7/06 ,  H04B7/08 ,  H04W74/00

CPC classification number: H04W72/046 ,  H04B7/0695 ,  H04B7/088 ,  H04L1/0003 ,  H04L5/005 ,  H04W24/08 ,  H04W72/042 ,  H04W74/006 ,  H04W74/08 ,  H04W76/11 ,  H04W76/27

Abstract: A base station may configure a set of autonomous uplink (AUL) resources for a specific base station receive beam, or the AUL resources may be configured for specific user equipment (UEs) or user groups. Additionally, the AUL resources may be configured to include a sensing portion, a data portion, or both. As an example, a UE may receive an AUL configuration that includes an indication of a set of AUL resources that are specific to a base station receive beam. The UE may then determine that the set of AUL resources is available and perform an AUL transmission of uplink data using the set of beam-specific AUL resources. Additionally or alternatively, the UE may perform the AUL transmission with respective portions that include a sensing signal and the uplink data. The base station may use the sensing signal to determine a receive beam on which to receive the uplink data.

公开(公告)号：WO2019112764A1

公开(公告)日：2019-06-13

申请号：PCT/US2018/061193

申请日：2018-11-15

Applicant: QUALCOMM INCORPORATED

Inventor： XUE, Yisheng ,  ZHANG, Xiaoxia ,  DAMNJANOVIC, Aleksandar ,  ZENG, Weiliang ,  KADOUS, Tamer ,  WEI, Yongbin

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A transmitter may identify a contention window for a no-energy-detection protocol for determining a channel availability for a data transmission. After the contention window expires, the transmitter may send a request message to a receiver. The receiver may measure a quality of the request message against a request threshold and transmit a response message if the measured quality exceeds the request threshold. The transmitter may then measure a quality of the response message against a response threshold. If the measured quality exceeds the response threshold, the transmitter may initiate a data transmission with the receiver. If the quality falls below the response threshold or the response message is not received, the transmitter may adjust the contention window and reattempt the no-energy-detection protocol. The contention window may also be adjusted based on an acknowledgement message received after the data transmission.

公开(公告)号：WO2018200114A1

公开(公告)日：2018-11-01

申请号：PCT/US2018/024678

申请日：2018-03-27

Applicant: QUALCOMM INCORPORATED

Inventor： LI, Junyi ,  DAMNJANOVIC, Aleksandar ,  FAN, Michael Mingxi ,  WEI, Yongbin ,  KADOUS, Tamer ,  SADEK, Ahmed

IPC: H04W16/14

Abstract: Wireless communication systems and methods related to spectrum use negotiations are provided. A first wireless communication device transmits, to a controlling entity of a spectrum, a spectrum use request for a local operator to use the spectrum for a time period. The first wireless communication device receives, from the controlling entity, a spectrum use grant indicating that the local operator is promoted from a first priority to a second priority for accessing the spectrum during the time period. The first wireless communication device communicates with a second wireless communication device in the spectrum during the time period based on the second priority, where at least the first wireless communication device or the second wireless communication device is associated with the local operator.

公开(公告)号：WO2017196654A1

公开(公告)日：2017-11-16

申请号：PCT/US2017/031235

申请日：2017-05-05

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  GAAL, Peter ,  PATEL, Chirag ,  CHENDAMARAI KANNAN, Arumugam ,  MONTOJO, Juan ,  WEI, Yongbin

IPC: H04W72/02 ,  H04W74/00 ,  H04W76/00 ,  H04L5/00

CPC classification number: H04W74/0833 ,  H04L1/00 ,  H04L1/08 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0026 ,  H04L5/0041 ,  H04L5/14 ,  H04L27/2602 ,  H04W16/14 ,  H04W74/0866

Abstract: Techniques are described for wireless communication. One method includes transmitting a sequence of deterministic variations of random access data on at least one interlace of non-contiguous frequency resources allocated to a physical random access channel (PRACH) in an unlicensed spectrum, beginning at a first time; repeating the transmitting of the sequence of deterministic variations of random access data at least once, beginning at a second time; generating at least one modification of the sequence of deterministic variations of random access data, in which the at least one modification is generated according to a modification sequence; and transmitting on the at least one interlace, beginning at a third time, the at least one modification of the sequence of deterministic variations of random access data.

Abstract translation: 描述了用于无线通信的技术。 一种方法包括：在第一时间开始，在分配给未经许可频谱中的物理随机接入信道（PRACH）的非连续频率资源的至少一个交织中传送随机接入数据的确定性变化的序列; 在第二时间开始重复传输随机访问数据的确定性变化序列至少一次; 生成随机访问数据的确定性变化序列的至少一个修改，其中根据修改序列生成所述至少一个修改; 以及在第三时间在至少一个交织上发送随机接入数据的确定性变化序列的至少一个修改。

公开(公告)号：WO2017180395A1

公开(公告)日：2017-10-19

申请号：PCT/US2017/026191

申请日：2017-04-05

Applicant: QUALCOMM INCORPORATED

Inventor： PATEL, Shimman Arvind ,  WEI, Yongbin ,  GAAL, Peter ,  RICO ALVARINO, Alberto ,  WALKER, Gordon ,  CHEN, Wanshi ,  DAMNJANOVIC, Aleksandar ,  MONTOJO, Juan

IPC: H04W72/00 ,  H04W56/00 ,  H04W16/32 ,  H04L27/26

Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, to synchronization for standalone long term evolution (LTE) broadcast. In one aspect, a method is provided which may be performed by a wireless device such as a base station (BS). The method generally includes providing unicast coverage to one or more user equipments (UEs) in a unicast coverage area within a larger coverage area, transmitting unicast data in one or more subframes, and transmitting synchronization signals within one or more of the broadcast subframes, wherein the broadcast signals are transmitted as single frequency network (SFN) transmissions synchronized with transmissions from one or more other base stations providing unicast coverage within the larger coverage area.

Abstract translation: 本公开的各方面涉及无线通信，并且更具体地涉及用于独立长期演进（LTE）广播的同步。 在一个方面，提供了可以由诸如基站（BS）的无线设备执行的方法。 该方法通常包括：向更大覆盖区域内的单播覆盖区域中的一个或多个用户设备（UE）提供单播覆盖，在一个或多个子帧中传送单播数据，以及在一个或多个广播子帧内传送同步信号，其中 广播信号作为与来自在较大覆盖区域内提供单播覆盖的一个或多个其他基站的传输同步的单频网络（SFN）传输而被传输。