公开(公告)号：US11039426B2

公开(公告)日：2021-06-15

申请号：US16565042

申请日：2019-09-09

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Kapil Gulati ,  Tien Viet Nguyen ,  Shailesh Patil ,  Arjun Bharadwaj ,  Shuanshuan Wu

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W72/08

Abstract: Using a modulation and coding scheme for a control channel that is more conservative than needed to fulfill the control function may waste resources. To address this issue, a variable size control channel is provided. An apparatus in such a system may be configured to determine an aggregation level of a plurality of aggregation levels associated with a control channel. Each aggregation level of the plurality of aggregation levels is associated with a number of time-frequency resources dedicated for the control channel and a particular modulation and coding scheme used for modulating and coding control information in the control channel. The apparatus is configured to receive control information in the time-frequency resources associated with the aggregation level and decode the control information received in the time-frequency resources associated with the determined aggregation level. The decoding is based on the particular modulation and coding scheme associated with the determined aggregation level.

公开(公告)号：US11032780B2

公开(公告)日：2021-06-08

申请号：US15253651

申请日：2016-08-31

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Rahul Tandra ,  Bin Tian ,  Youhan Kim ,  Simone Merlin ,  George Cherian

IPC: H04W52/24 ,  H04W52/14 ,  H04L27/26 ,  H04B7/0452 ,  H04L1/00 ,  H04W52/22 ,  H04L5/00 ,  H04W52/36 ,  H04W52/26

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

公开(公告)号：US10972229B2

公开(公告)日：2021-04-06

申请号：US16843679

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Kapil Gulati ,  Arjun Bharadwaj ,  Tien Viet Nguyen ,  Shailesh Patil

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more sidelink communications on a sidelink between the UE and another UE. The UE may transmit one or more hybrid automatic repeat request (HARQ) feedback communications, associated with the one or more sidelink communications, on the sidelink and in a HARQ feedback resource included in a multi-slot feedback reporting period. The HARQ feedback resource may include a set of negative acknowledgement (NACK) resources or the set of NACK resources and a set of acknowledgement (ACK) resources. Numerous other aspects are provided.

公开(公告)号：US20200322839A1

公开(公告)日：2020-10-08

申请号：US16817448

申请日：2020-03-12

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Arjun Bharadwaj

IPC: H04W28/04 ,  H04W4/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., vehicle-to-everything (V2X) systems), a source user equipment (UE) may multicast a data packet to surrounding UEs. In some cases, a receiving UE may fail to receive the transmission due to blocking, shadowing, or interference. The receiving UE may multicast a message requesting retransmission of the packet. Any surrounding UEs that successfully received the data packet from the source UE and the relay request message from the receiving UE may determine whether to relay the packet. Determining whether to relay the packet may be based on a reference signal received power (RSRP) threshold, available resources, a distance to the blocked UE, or some combination thereof. In some examples, the receiving UE may successfully receive the relayed packet from the relay UE even if a path between the receiving UE and the original source UE is blocked.

公开(公告)号：US10779193B2

公开(公告)日：2020-09-15

申请号：US16680110

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Kapil Gulati ,  Arjun Bharadwaj ,  Sudhir Kumar Baghel

IPC: H04W28/06 ,  H04L1/00 ,  H04W28/02 ,  H04L5/16

Abstract: Methods, apparatuses, and computer-readable mediums for wireless communication include re-coding a first coded packet into a second coded packet, wherein the second coded packet includes less coded bits and has a higher modulation order than the first packet, generating one or more redundant versions of the second packet, and transmitting the second packet and the one or more redundant versions of the second packet at different times to a receiving user equipment.

公开(公告)号：US20200267739A1

公开(公告)日：2020-08-20

申请号：US16790530

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Arjun Bharadwaj

IPC: H04W72/12 ,  H04W72/04

Abstract: Aspects relate to limiting the number of missed reservations by a wireless communication device, such as a vehicle-to-everything (V2X) device. The wireless communication device may calculate a missed reservation metric associated with one or more missed reservations missed by the wireless communication device. The wireless communication device may then limit additional reservations when the missed reservation metric exceeds a missed reservation limit.

公开(公告)号：US20200236655A1

公开(公告)日：2020-07-23

申请号：US16745289

申请日：2020-01-16

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Kapil Gulati

IPC: H04W72/02 ,  H04W28/26 ,  H04W72/10 ,  H04L5/00 ,  H04B17/318

Abstract: User equipment (UEs) within a sidelink communications system may employ control forwarding techniques. For example, a UE may piggyback resource reservation information received from other UEs when broadcasting its own resource reservation. A UE that may be in line of sight (LOS) with two other UEs that themselves are in a non-line of sight (NLOS) situation and may include resource reservation information associated with other UEs when broadcasting the control information. For example, when forwarding control information, a UE may identify additional resources available in a transmission interval, and may convey neighbor control information (e.g., known resource reservations of other UEs in the sidelink communications system) using the additional resources. In some cases, the piggybacked resource reservation information associated with the other UEs may be selected based on the amount of additional resources in the transmission interval, a priority of known resource reservation information, etc.

公开(公告)号：US20200229041A1

公开(公告)日：2020-07-16

申请号：US16735490

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Arjun Bharadwaj ,  Kapil Gulati ,  Shuanshuan Wu

IPC: H04W28/26 ,  H04L12/801 ,  H04W72/12 ,  H04L12/851 ,  H04L12/911

Abstract: Methods, systems, and devices for wireless communications are described. A device may determine a packet for transmission and determine whether to transmit a reservation signal prior to the transmission of the packet based in part on a condition. The condition may include, but is not limited to, a packet size, or a packet priority, or a combination thereof. According to the determination, the device may refrain from transmitting the reservation signal or allocate resources for the reservation signal from a same resource pool associated with the transmission of the packet or a dedicated resource pool according to a pre-reservation resource pattern.

公开(公告)号：US10412718B2

公开(公告)日：2019-09-10

申请号：US15387364

申请日：2016-12-21

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian ,  Lochan Verma ,  Sameer Vermani

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L12/24 ,  H04B7/0452 ,  H04W84/12 ,  H04W74/00

Abstract: Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (WLAN) are disclosed. A receiver may receive, at a first station, a transmission frame that includes a WLAN signaling field decodable by a plurality of stations. The receiver may identify, in a station-specific portion of the WLAN signaling field, an order for a plurality of station-specific information blocks associated with the plurality of stations. The receiver may determine a number of spatial streams allocated to the first station based at least in part on the identified order for the plurality of station-specific information blocks.

公开(公告)号：US10165551B2

公开(公告)日：2018-12-25

申请号：US15232711

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian ,  Sameer Vermani

IPC: H04W72/04 ,  H04B7/0452 ,  H04L27/26 ,  H04W84/12

Abstract: A device may signal a resource allocation scheme in a high efficiency wireless local area network (WLAN) preamble. In one example, a high efficiency (HE) WLAN signaling field is used to signal a resource allocation pattern to multiple devices. The HE WLAN signaling field includes a common user field that is decodable by the multiple devices and includes a resource allocation field. The resource allocation indicates resource unit distributions to the multiple devices and indicates which resource units in a multi-user PPDU correspond to multi-user MIMO transmissions and which resource units correspond to OFDMA single-user transmissions. The HE WLAN signaling field also includes dedicated user fields that are assigned to certain devices. The order of the dedicated user fields corresponds to the allocated resource units. The HE WLAN signaling field is transmitted with a WLAN preamble to the multiple devices.