公开(公告)号：US20190053317A1

公开(公告)日：2019-02-14

申请号：US16058358

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Hong Cheng ,  Junyi LI ,  Navid Abedini ,  Sundar Subramanian ,  Muhammad Nazmul Islam

IPC: H04W76/27 ,  H04B7/14 ,  H04W76/15

Abstract: Methods, systems, and devices for wireless communication are described that provide for transmitting different sets of control messages through a relay to a central unit (CU) and a core network of a wireless communications system. The different sets of control messages may include a first set of control messages for an access radio link between the relay and the CU and a second set of control messages for a fronthaul radio link between the relay and the CU. Techniques may include multiplexing of messages on a radio bearer (RB), establishment of separate RBs for different control messages, and encapsulation of one type of control message for transmission with the other type of control message.

公开(公告)号：US20190053153A1

公开(公告)日：2019-02-14

申请号：US16032742

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sumeeth Nagaraja ,  Jianghong Luo ,  Sundar Subramanian ,  Ashwin Sampath

IPC: H04W52/02 ,  H04W76/28 ,  H04W16/28 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception (DRX) mode. The base station may configure a plurality of UE-specific reference signals for transmission to the UE, each UE-specific reference signal indicating a UE identifier and an availability of data for the UE. The UE may receive the UE-specific reference signal, and identify that data is available for the UE from the base station. The UE may then transmit a beam recovery signal to the base station that includes an identifier for the transmit beam used by the UE to transmit the beam recovery signal. The base station may transmit, using a beam sweeping configuration, the plurality of UE-specific reference signals.

公开(公告)号：US10149321B2

公开(公告)日：2018-12-04

申请号：US15427839

申请日：2017-02-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Jung Ryu

IPC: H04W4/00 ,  H04W74/08 ,  H04W76/10 ,  H04W24/08

Abstract: Techniques for procedures using request to send/clear to send (RTS/CTS) procedures and multiple timers are described. A RTS/CTS procedure using multiple timers may use a first timer and a second timer. The first timer may be associated with a duration to transmit and receive a request to send (RTS) message and a clear to send (CTS) message. The second timer may be associated with a duration to transmit a data message. A network device may transmit a RTS message to request communication resources to transmit data. If the CTS message is not received prior to the expiration of the first timer, neighboring network devices may determine that the communication resources were not allocated and may attempt to request the newly available resources. If a CTS message is received, the network device may communicate the second timer data to the neighboring network devices in a variety of ways.

公开(公告)号：US20180317259A1

公开(公告)日：2018-11-01

申请号：US15949945

申请日：2018-04-10

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Tamer Kadous

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: Methods, systems, and devices for wireless communication are described. A wireless node may transmit directional signals in a sweeping transmission pattern while receiving communications from a second wireless node. Another wireless node may then, during a listen-before-talk (LBT) procedure, receive one of the directional signals, and terminate a correspondence communication session to avoid potential interference. Additionally or alternatively, a wireless node may listen in directions in a sweeping receive pattern while transmitting to a second wireless node. While listening, the wireless node may detect a transmission from a third wireless node in a particular direction. The wireless node may then accordingly refrain from transmitting in that direction to avoid potential interference.

公开(公告)号：US20180279271A1

公开(公告)日：2018-09-27

申请号：US15921026

申请日：2018-03-14

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Navid Abedini ,  Tao Luo

IPC: H04W72/04 ,  H04J11/00 ,  H04L27/26 ,  H04L5/00

Abstract: Techniques are described for wireless communication. In one method, a user equipment (UE) receives a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), with the TSS based at least in part on a timing of the TSS within a broadcast channel transmission time interval (BCH TTI); determines the timing of the TSS within the BCH TTI; and demodulates the PBCH based at least in part on the TSS. In another method, a base station allocates resources for a TSS and a PBCH within a BCH TTI; determines the TSS based at least in part on a timing of the TSS within the BCH TTI; and transmits, on the resources allocated for the TSS and the PBCH, the TSS and the PBCH, with the TSS transmitted as a demodulation reference signal (DMRS) for the PBCH on at least one port used to transmit the TSS and the PBCH.

公开(公告)号：US20180205585A1

公开(公告)日：2018-07-19

申请号：US15871734

申请日：2018-01-15

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Sundar Subramanian ,  Tao Luo ,  Sumeeth Nagaraja ,  Juergen Cezanne ,  Ashwin Sampath ,  Navid Abedini ,  Muhammad Nazmul Islam

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0408

CPC classification number: H04L27/2613 ,  H04B7/0408 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/14 ,  H04L27/2611

Abstract: Methods, systems, and devices for wireless communication are described. Beams used for synchronization signals may be associated with beams used for reference signals. For example, a base station may identify a first set of millimeter wave (mmW) communication beams to transmit a synchronization signal. The base station may transmit the synchronization signal and identify a second set of mmW communication beams to transmit a reference signal, where the second set of mmW communication beams may be associated with the first set of beams. For instance, the first set and second set of mmW communication beams may be the same or similar. The base station may then transmit the reference signal on the second set of mmW communication beams. A user equipment may in turn identify the first and second sets of beams as being associated, and receive the reference signal on the second set of mmW communication beams.

公开(公告)号：US20180199310A1

公开(公告)日：2018-07-12

申请号：US15709193

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Karl Georg Hampel

IPC: H04W68/02 ,  H04W24/08 ,  H04W72/04 ,  H04W76/04 ,  H04W56/00

CPC classification number: H04W68/02 ,  H04L5/0048 ,  H04L5/0053 ,  H04W16/28 ,  H04W24/08 ,  H04W56/001 ,  H04W68/025 ,  H04W72/044 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

Abstract: In a wireless communications system that supports directional communications (e.g., a millimeter wave (mmW) system), a base station and a user equipment (UE) may utilize directional transmissions during a paging procedure. In some cases, a base station may use beam sweeping to transmit a control channel, which may contain a paging group information. For example, the base station may configure the UE or a group of UEs to monitor for the paging group information over a set of time-frequency resources. A UE that receives the paging group information may determine transmission resources to monitor for a subsequent data channel transmission based at least in part on the identified paging group information. The base station may then transmit the paging information over the indicated transmission resources.

公开(公告)号：US20180176948A1

公开(公告)日：2018-06-21

申请号：US15807132

申请日：2017-11-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sumeeth Nagaraja ,  Tao Luo ,  Bilal Sadiq ,  Junyi Li ,  Sundar Subramanian

IPC: H04W74/00 ,  H04W74/08 ,  H04W52/50 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for selecting different uplink transmission parameters for transmission or retransmission of a random access message. A user equipment (UE) may retransmit a random access message to a base station during a random access procedure if an initial transmission of the random access message was unsuccessfully received by the base station. The UE may select a different transmission beam, uplink resource, or transmission power for retransmission of the random access message. The selection may be based on path loss associated with synchronization signals or previous transmissions. The selection may also be based on a maximum number of retransmissions.

公开(公告)号：US10004032B2

公开(公告)日：2018-06-19

申请号：US14843345

申请日：2015-09-02

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li ,  Zhenliang Zhang

IPC: H04W48/16 ,  H04W28/26 ,  H04W24/02 ,  H04W76/10 ,  H04W76/02 ,  H04W84/18 ,  H04W92/12

CPC classification number: H04W48/16 ,  H04W24/02 ,  H04W28/26 ,  H04W76/10 ,  H04W84/18 ,  H04W92/12

Abstract: Techniques are described for backhaul operations in a millimeter wave wireless communication system. A first base station of the millimeter wave wireless communication system identifies an access demand and one or more access communication parameters associated with the first base station. The first base station sends information to a second base station indicative of the access demand and the one or more access communication parameters, and determines one or more backhaul communication parameters associated with the second base station of the millimeter wave wireless communication system. The first base station establishes a wireless backhaul link with the second base station via the millimeter wave wireless communication system. The first base station partitions resources between an access link with one or more user equipments and the established wireless backhaul link based at least in part on the access demand, the one or more access communication parameters, or the backhaul communication parameters.

公开(公告)号：US20180041979A1

公开(公告)日：2018-02-08

申请号：US15412362

申请日：2017-01-23

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Sundar Subramanian ,  Junyi Li ,  Muhammad Nazmul Islam ,  Navid Abedini

IPC: H04W56/00 ,  H04W72/12 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04W56/0005 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/12 ,  H04W76/15 ,  H04W88/02 ,  H04W88/08 ,  H04W92/045 ,  H04W92/10 ,  H04W92/20

Abstract: The use of a radio access technology (RAT) may enable wireless communication using one or more node functions at a wireless node, such as a base station or access node. Additionally, multiple wireless nodes may communicate in a network using a schedule that is aligned with a frame structure. For example, a wireless node may establish a link with different wireless nodes using a RAT that supports a synchronized frame structure, such as a millimeter wave (mmW) RAT. The wireless nodes may instantiate one or more node functions, such as an access node function (ANF) and a user equipment function (UEF). The wireless nodes may then communicate according to active and suspended modes using the node functions, where the communication is based on a schedule aligned with the frame structure.