公开(公告)号：US20210051634A1

公开(公告)日：2021-02-18

申请号：US16942475

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN

IPC: H04W72/04 ,  H04L1/18

Abstract: This disclosure provides systems, methods, and apparatuses for jointly activating or releasing a plurality of semi-persistent scheduling (SPS) configurations using a single downlink control information (DCI) message. In some implementations, a user equipment (UE) receiving the DCI message can determine, for each SPS configuration, a number of time slots between an end of the received DCI message and a beginning of one or more downlink (DL) data frames based on a first value contained in the DCI message. The UE can also determine, for each SPS configuration, a number of time slots between an end of the DL data frames and an instance in time at which the UE is to transmit a hybrid automatic repeat request acknowledgement (HARQ-ACK) based on a second value contained in the DCI message. In some instances, the single DCI message can also jointly activate or release a plurality of configured grant (CG) configurations.

公开(公告)号：US20210014892A1

公开(公告)日：2021-01-14

申请号：US16924584

申请日：2020-07-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/14 ,  H04W76/27 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a configuration for UE-to-UE sharing of a channel occupancy time (COT) and may transmit the configuration to a UE to indicate that it can share a UE-acquired COT with at least another UE. A UE may acquire a COT using a listen-before-talk (LBT) procedure, and if successful, may transmit a signal indicating that the COT is being shared with at least another UE. Additionally, a UE may receive a signal from another UE indicating that it has acquired a COT in a shared spectrum and that the COT is being shared with other UEs. The UE may perform a shortened LBT procedure within the COT, and if successful, may transmit an uplink transmission in the shared spectrum.

公开(公告)号：US20200275408A1

公开(公告)日：2020-08-27

申请号：US16796750

申请日：2020-02-20

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos RADULESCU ,  Jing SUN ,  Xiaoxia ZHANG ,  Ozcan OZTURK ,  Peter GAAL ,  Aleksandar DAMNJANOVIC

IPC: H04W68/02 ,  H04W72/04

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. A user equipment (UE) may acquire a triggering synchronization signal block (SSB), which enables the UE to monitor for a floating Type-2 physical downlink control channel (PDCCH) and to determine a subset of paging occasions (POs) to monitor. Or, the UE may monitor for a fixed Type-2 PDCCH, where the UE does not require a triggering signal to monitors POs. In another aspect, the UE may monitor for a paging transmission during a monitoring period. The UE may determine the monitoring period based on received signaling. The UE may receive the signaling, during the monitoring period, indicating that the monitoring period is to be ended before a scheduled end of the monitoring period. In this way, the UE may support a continuity requirement associated with downlink reference signaling (DRS) and may support reception of paging in a shared channel.

公开(公告)号：US20200252820A1

公开(公告)日：2020-08-06

申请号：US16776321

申请日：2020-01-29

Applicant: QUALCOMM Incorporated

Inventor： Ozcan OZTURK ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN

IPC: H04W24/10 ,  H04W16/14

Abstract: A configuration to enable a UE to obtain access to an unlicensed frequency channel of the unlicensed frequency spectrum in the event of channel access failures. The apparatus performs a radio link monitoring (RLM) for a first unlicensed frequency channel of an unlicensed frequency spectrum for a transmission from a first base station. The apparatus determines that the first unlicensed frequency channel is unavailable for the transmission based on a comparison of one or more of a reference signal received power (RSRP), a reference signal received quality (RSRQ), a received signal strength indicator (RSSI), a signal to interference plus noise ratio (SINR), a signal to noise ratio (SNR), or a channel occupancy or interference metric to a corresponding threshold. The apparatus sends a report to the first base station indicating a failure of the transmission upon determining that the first unlicensed frequency channel is unavailable for the transmission.

公开(公告)号：US20200221309A1

公开(公告)日：2020-07-09

申请号：US16735504

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Ozcan OZTURK ,  Aleksandar DAMNJANOVIC ,  Andrei Dragos RADULESCU ,  Xiaoxia ZHANG ,  Tao LUO ,  Jing SUN

IPC: H04W16/14 ,  H04W74/08 ,  H04W76/27 ,  H04W80/02 ,  H04L25/02 ,  H04L5/00 ,  H04W24/10 ,  H04B17/318 ,  H04B17/336

Abstract: A UE determines to send a transmission to a first base station on a first unlicensed frequency channel. The UE determines, for one or more attempts of a listen before talk (LBT) protocol, whether each attempt is a failed attempt or a successful attempt. The UE determines that the first unlicensed frequency channel is one of unavailable based on the LBT protocol failing due to a number of failed attempts exceeding for a first threshold number of failed attempts or a duration of failed attempts exceeding a first threshold duration, or available based on the LBT protocol being successful. The UE sends a report to the first base station indicating whether the first unlicensed frequency channel is unavailable or available through a unicast radio resource control (RRC) message or a medium access control (MAC) control element (CE).

公开(公告)号：US20200084774A1

公开(公告)日：2020-03-12

申请号：US16684488

申请日：2019-11-14

Applicant: QUALCOMM Incorporated

Inventor： Stefan GEIRHOFER ,  Naga BHUSHAN ,  Ravi PALANKI ,  Jaber BORRAN ,  Aleksandar DAMNJANOVIC

IPC: H04W72/08 ,  H04W52/24 ,  H04W76/14 ,  H04W52/38 ,  H04W8/00

Abstract: Techniques for supporting peer-to-peer (P2P) communication in a wide area network (WAN) are disclosed. In an aspect, interference coordination between P2P devices engaged in P2P communication and WAN devices engaged in WAN communication may be performed based on a network-controlled architecture. For the network-controlled architecture, P2P devices may detect other P2P devices and/or WAN devices and may send measurements (e.g., for pathloss, interference, etc.) for the detected devices to the WAN (e.g., serving base stations). The WAN may perform resource partitioning and/or association for the P2P devices based on the measurements. Association may include selection of P2P communication or WAN communication for a given P2P device. Resource partitioning may include allocation of resources to a group of P2P devices for P2P communication. The WAN may send the results of association and/or resource partitioning to the P2P devices, which may communicate in accordance with the association and/or resource partitioning results.

公开(公告)号：US20200045744A1

公开(公告)日：2020-02-06

申请号：US16526682

申请日：2019-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Kapil BHATTAD ,  Aleksandar DAMNJANOVIC ,  Tamer KADOUS ,  Taesang YOO ,  Xiaoxia ZHANG

IPC: H04W74/08 ,  H04W72/12 ,  H04W88/12

Abstract: Aspects directed towards facilitating multi-node listen before talk (LBT) functionality via a centralized controller are disclosed. In one example, for each of a plurality of scheduled entities, a corresponding set of scheduling entities is identified, and each scheduling entity of the set of scheduling entities is instructed to perform at least one LBT evaluation. This example then further includes controlling whether any of the plurality of scheduled entities is served by a corresponding one or more scheduling entities of the set of scheduling entities based on the at least one LBT evaluation performed by each scheduling entity.

公开(公告)号：US20190394708A1

公开(公告)日：2019-12-26

申请号：US16467029

申请日：2017-10-26

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Karl Georg HAMPEL ,  Gavin Bernard HORN ,  Keiichi KUBOTA ,  Ravi AGARWAL ,  Peng CHENG

IPC: H04W48/10 ,  H04W72/00 ,  H04W36/00

Abstract: Various aspects of the disclosure relate to delivering a limited amount of system information. For example, the delivery of system information may be divided into broadcasting a limited amount of the system information and using unicast signaling for delivery of the remaining system information. In some aspects, the delivery of a limited amount of system information may involve broadcasting a compressed PLMN ID list (e.g., broadcasting indications of PLMNs). In some aspects, the delivery of a limited amount of system information may involve broadcasting an indication of the version of system information that is valid for a cell. In some aspects, the delivery of a limited amount of system information may involve broadcasting multiple configurations of system information along with indications of each configuration. In some aspects, the delivery of a limited amount of system information may involve broadcasting compressed non-cell-related system information.

公开(公告)号：US20190268105A1

公开(公告)日：2019-08-29

申请号：US16409367

申请日：2019-05-10

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter GAAL ,  Shimman Arvind PATEL ,  Yongbin WEI ,  Aleksandar DAMNJANOVIC

IPC: H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04W74/02

Abstract: Systems, methods, and apparatuses are described for wireless communication, including for hybrid automatic repeat request (HARQ) feedback in a system that supports communications using transmission time intervals (TTIs) of different durations. A base station may identify a user equipment's (UE) capability to provide HARQ feedback for transmissions that use TTIs of a shorter duration relative to other TTIs supported in the system. The base station may select a HARQ timing mode based on the capability of the UE and may indicate the selected HARQ timing mode to the UE. The base station may then transmit one or more data transmissions to the UE using the reduced TTIs. The UE may respond with HARQ feedback based on the HARQ timing mode. The HARQ timing mode may be based on different response times based on the location of the data transmission within a TTI or relative to data transmission in other TTIs.

公开(公告)号：US20190007173A1

公开(公告)日：2019-01-03

申请号：US16104111

申请日：2018-08-16

Applicant: QUALCOMM Incorporated

Inventor： Onkar Jayant DABEER ,  Aleksandar DAMNJANOVIC ,  Kiran Kumar SOMASUNDARAM ,  Madhavan Srinivasan VAJAPEYAM ,  Hao XU ,  Wanshi CHEN ,  Alberto RICO ALVARINO

IPC: H04L1/16 ,  H04L12/26 ,  H04L1/00 ,  H04L1/12

Abstract: According to the present disclosure, CSI and/or a plurality of ACKs related to a group of DL data transmissions may be buffered at the UE as a GACK until a DCI trigger is received from the eNB. Once the trigger is received, the UE may transmit the CSI and/or GACK to the eNB. In this way HARQ feedback and/or CSI may be reliably communicated while reducing payload. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus send, to a UE, data transmissions associated with a first plurality of downlink subframes. In an aspect, the apparatus increments a counter for each data transmission sent to the UE. In a further aspect, the apparatus transmits, to the UE, a first trigger for a first GACK when a counter is greater than or equal to a threshold.