公开(公告)号：US10313913B2

公开(公告)日：2019-06-04

申请号：US14273478

申请日：2014-05-08

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Peter Gaal ,  Hao Xu ,  Miguel Griot ,  Wanshi Chen

IPC: H04W4/70 ,  H04W28/02 ,  H04W52/02 ,  H04W72/12 ,  H04W74/08 ,  H04W76/28 ,  H04W92/18

Abstract: Methods, systems, and/or devices are described for are provided for transmission overload control and/or supervision of wireless devices. Tools and techniques may be provided for resolving issues associated with numerous wireless devices connected to a base station. For example, a transmission cycle for an uplink channel may be identified where the transmission cycle is discontinuous. Scheduling request and or Random Access Channel messages may be transmitted from a wireless device based on the discontinuous transmission cycle. Tools and techniques are also provided that may involve supervision of numerous wireless devices. Supervision may, for example, involve keep-alive messages transmitted in accordance with a timer. The supervision may be based on determination of, and transmissions related to, a list or lists of connected wireless devices. In some cases, the wireless devices may be delay tolerant. The wireless devices may include UEs that may have long sleep cycles and/or machine-type communications (MTC) devices.

公开(公告)号：US20190165971A1

公开(公告)日：2019-05-30

申请号：US16198624

申请日：2018-11-21

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Alberto Rico Alvarino ,  Ayan Sengupta ,  Wanshi Chen ,  Peter Gaal

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. These wireless communications may include channel estimation procedures between communicating devices such as a base station and user equipment (UE). For example, the UE may receive, from the base station, a resource grant triggering a given reference signal configuration. Based at least in part on the type of reference signal configuration, the UE (e.g., and the base station) may determine a timing offset relative to the resource grant. The UE may transmit (and the base station may receive) the reference signal based at least in part on the timing offset. In some cases, the reference signal may be transmitted in a transmission opportunity of a set of transmission opportunities, where the set of transmission opportunities is determined based at least in part on the reference signal configuration.

公开(公告)号：US10306632B2

公开(公告)日：2019-05-28

申请号：US14865640

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Srinivas Yerramalli ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Wanshi Chen ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04W40/24 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08 ,  H04L1/00

Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.

公开(公告)号：US20190159202A1

公开(公告)日：2019-05-23

申请号：US16170705

申请日：2018-10-25

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Joseph Binamira Soriaga ,  Jing Sun ,  Jing Jiang ,  Wanshi Chen ,  Peter Gaal ,  Alexandros Manolakos

IPC: H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive control information for a communication of the UE; and determine whether the control information is associated with a slot-based control configuration or a non-slot-based control configuration based at least in part on the control information; or determine whether the communication is associated with a slot-based data configuration or a non-slot-based data configuration. Numerous other aspects are provided.

公开(公告)号：US20190158317A1

公开(公告)日：2019-05-23

申请号：US16191748

申请日：2018-11-15

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Jing Sun ,  Wanshi Chen ,  Tao Luo

IPC: H04L25/02 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A network device such as a next generation (gNB) may identify control information for transmission on a downlink control channel e.g., a physical downlink control channel (PDCCH). The network device may identify a candidate set of decoding candidates to which the control information is able to be mapped. In some examples, each decoding candidate may include one or more control channel elements (CCEs). The network device may select, from the candidate set of decoding candidates, an actual set of decoding candidates to which the control information is to actually be mapped, and map the control information into the actual set of decoding candidates. Upon decoding the control information, the network device may transmit the control information within a search space including the actual set of decoding candidates to a user equipment (UE).

公开(公告)号：US10298378B2

公开(公告)日：2019-05-21

申请号：US15687745

申请日：2017-08-28

Applicant: QUALCOMM Incorporated

Inventor： Juan Montojo ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu ,  Tao Luo

IPC: H04L5/16 ,  H04L5/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/10

Abstract: Half-duplex (HD) operations enable low cost implementations of LTE terminals. Traditionally, HD operations may be linked to a particular frequency band which may not allow a mix of full-duplex (FD) and HD terminals in the same frequency band. Therefore, certain aspects of the present disclosure provide techniques for enabling coexistence, in a given frequency band, of HD and FD terminals, by introducing frequency bands designated for HD operation and overlapping existing frequency bands designated for FD operation.

公开(公告)号：US20190150172A1

公开(公告)日：2019-05-16

申请号：US16184855

申请日：2018-11-08

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Juan Montojo ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Tingfang Ji ,  Heechoon Lee ,  John Edward Smee ,  Jing Sun

IPC: H04W72/12 ,  H04W24/10

Abstract: Techniques are described for signaling a downlink bandwidth part (BWP) switching event and an aperiodic channel state information (A-CSI) request in a paired spectrum environment. The base station may transmit uplink scheduling downlink control information (DCI) to a user equipment (UE) that includes the A-CSI request and an identifier for the downlink BWP of the downlink BWP switching event. After receiving the A-CSI request and the downlink BWP, the UE may perform one or more CSI measurements using the downlink BWP. The UE may use physical uplink shared channel (PUSCH) resources associated with the uplink scheduling DCI to transmit the CSI report to the base station. Using these techniques, the base station may be configured to indicate that a downlink BWP switching event is to occur and allocate PUSCH resources to the UE to be used to transmit the CSI report associated with the downlink BWP switching event.

公开(公告)号：US20190149288A1

公开(公告)日：2019-05-16

申请号：US16183637

申请日：2018-11-07

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Amir Farajidana ,  Wanshi Chen

IPC: H04L5/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques generally provide for improved reference signal sharing techniques that support low latency communications. In accordance with the described techniques, a base station may transmit, and a user equipment (UE) may receive, signaling configuring the UE to transmit (or receive) a demodulation reference signal (DMRS) in an indicated transmission time interval (TTI) of a plurality of TTIs, where the DMRS is used for demodulation of a data symbol transmitted in a second TTI of the plurality of TTIs. In various examples, the base station or the UE may determine to skip a data transmission in the indicated TTI (e.g., depending on whether the transmission is in the uplink or downlink direction). The base station or the UE may then transmit the DMRS in the indicated TTI and the data symbol in the second TTI.

公开(公告)号：US10284311B2

公开(公告)日：2019-05-07

申请号：US15040794

申请日：2016-02-10

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Renqiu Wang ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Madhavan Srinivasan Vajapeyam ,  Valentin Alexandru Gheorghiu

IPC: H04B17/318 ,  H04B17/336 ,  H04W4/70 ,  H04L5/00

Abstract: Aspects of the present disclosure provided techniques that for wireless communications by a user equipment (UE). An exemplary method, performed by a UE, generally includes determining an additional set of resources to use to enhance measurement of one or more metrics indicative of channel conditions based on measurement of reference signals during a measurement procedure, wherein the additional set of resources are in addition to a defined set of resources used to measure the one or more metrics and performing the measurement procedure based at least on the reference signals, the additional set of resources, and one or more measurement parameters.

公开(公告)号：US10277439B2

公开(公告)日：2019-04-30

申请号：US15485800

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Wanshi Chen ,  Durga Prasad Malladi ,  Seyedkianoush Hosseini ,  Juan Montojo ,  Peter Gaal ,  Taesang Yoo ,  Yongbin Wei

IPC: H04L27/00 ,  H04L1/00 ,  H04L12/931 ,  H04W24/02 ,  H04L27/26 ,  H04L12/935

Abstract: Methods, systems, and devices for wireless communication are described that may perform dual stage channel interleaving in which code blocks are interleaved at the code block level and at a symbol level. The interleaved code block data may provide time diversity for the code block data, and the interleaved symbol data may provide frequency diversity for the code block data, thus helping to mitigate narrowband and/or bursty interference. The interleaving within the code block and interleaving within the symbols, in some examples, may allow pipelined implementation of decoding of the code blocks at the receiver, for faster processing. In some cases, systematic data and parity data may be interleaved within the code block data to provide a uniform distribution of the systematic data in time within the code block.