公开(公告)号：US20180176904A1

公开(公告)日：2018-06-21

申请号：US15894514

申请日：2018-02-12

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W72/04 ,  H04L5/00 ,  H04J13/00 ,  H04W76/27 ,  H04W28/06 ,  H04L5/14 ,  H04W72/12

Abstract: A first method for wireless communications may comprise determining sizes of payloads of user equipments (UEs), determining whether to multiplex the payloads of the UEs based on the sizes of the payloads, and allocating codes or cyclic shifts to the UEs to transmit the payloads on a single interlace of resources. A second method for wireless communications may comprise determining a first code or a first cyclic shift used for a first transmission using an interlace of resources, and allocating second codes or second cyclic shifts to UEs for a second transmission, where the second transmission may be multiplexed with the first transmission on the interlace of resources. A third method for wireless communications may comprise allocating a first interlace of resources for a first transmission for occupying an unlicensed radio frequency spectrum band, and allocating a second interlace of resources, occupied by a base station, for a second transmission.

公开(公告)号：US20180167187A1

公开(公告)日：2018-06-14

申请号：US15894697

申请日：2018-02-12

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Tao Luo ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu

IPC: H04L5/00 ,  H04W74/08 ,  H04L27/26 ,  H04W16/14

Abstract: A device may determine that an unlicensed radio frequency (RF) spectrum band is available for a communication. The device may transmit a first transmission indicator that indicates that the device is transmitting information via the unlicensed RF spectrum band. The first transmission indicator may be associated with a first radio access technology. The device may transmit a second transmission indicator that indicates that the device is transmitting information via the unlicensed RF spectrum band. The second transmission indicator may be associated with a second radio access technology that is different from the first radio access technology.

公开(公告)号：US20180160437A1

公开(公告)日：2018-06-07

申请号：US15829609

申请日：2017-12-01

Applicant: QUALCOMM Incorporated

Inventor： Juan Montojo ,  Farhad Meshkati ,  Yongbin Wei ,  Taesang Yoo ,  Xiaoxia Zhang

IPC: H04W72/12

Abstract: Wireless communications systems and methods related to improving detectability of interference management signals are provided. A first wireless communication device communicates, with a second wireless communication device, a first reservation signal indicating a reservation for a first transmission slot in a spectrum accessed by a plurality of network operating entities. The first wireless communication device and the second wireless communication device are associated with a first network operating entity of a plurality of network operating entities. The first reservation signal includes a duration based on a power class associated with the first network operating entity. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in the first transmission slot.

公开(公告)号：US09991989B2

公开(公告)日：2018-06-05

申请号：US15173206

申请日：2016-06-03

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei ,  Taesang Yoo ,  Siddhartha Mallik ,  Jing Sun

IPC: H04L1/00 ,  H04L1/18 ,  H04B17/336 ,  H03M13/45 ,  H04W84/04

CPC classification number: H04L1/0045 ,  H03M13/45 ,  H04B17/336 ,  H04L1/1812 ,  H04L1/1835 ,  H04L1/1845 ,  H04W84/042

Abstract: Methods, systems, and devices for soft hybrid automatic repeat request operation in wireless communication are described. A user equipment (UE) may fail to decode a received signal, for example. The UE may store a portion of the signal in a buffer if the signal size is greater than the buffer size; otherwise, the UE may store the entire signal in the buffer. The UE may then receive a second signal and combine the second signal with the stored portion of the first signal; the combined signal may be larger than the buffer size. This combined signal may, for example, have a code rate less than the first signal. The UE may perform a second decoding attempt on the combined signal. The UE may determine that the second decoding attempt failed and may store a portion of the combined signal in the buffer.

公开(公告)号：US09973923B2

公开(公告)日：2018-05-15

申请号：US13830747

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Siddhartha Mallik ,  Naga Bhushan ,  Yongbin Wei ,  Gavin Bernard Horn

IPC: H04W8/22 ,  H04W76/02 ,  H04W52/02 ,  H04W84/10

CPC classification number: H04W8/22 ,  H04W52/0206 ,  H04W76/14 ,  H04W84/10 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: A method of wireless communication includes receiving activation parameters at a low power node and detecting a proximity of an active user equipment (UE) based at least in part on the activation parameters. The activation parameters are triggered from a node different from the low power node, such as an eNodeB. The low power node initiates an activation sequence after detecting the active UE.

公开(公告)号：US09961558B2

公开(公告)日：2018-05-01

申请号：US15193561

申请日：2016-06-27

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W4/00 ,  H04W16/14 ,  H04W84/12 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W16/14 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, apparatuses, and devices are described for wireless communications. In one method, an opportunity may be identified for a first operator to perform a clear channel assessment (CCA) for a shared spectrum. The opportunity may be based on a priority of the first operator with respect to at least one other operator associated with the shared spectrum. The CCA may be performed for the shared spectrum during the identified opportunity to determine whether the shared spectrum is available for a transmission during a transmission interval.

公开(公告)号：US09960890B2

公开(公告)日：2018-05-01

申请号：US15017323

申请日：2016-02-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Hao Xu ,  Yongbin Wei

IPC: H04L5/00 ,  H04W72/04 ,  H04W74/00 ,  H04L27/00 ,  H04W16/14 ,  H04W74/08 ,  H04L27/26

CPC classification number: H04L5/0005 ,  H04L27/0006 ,  H04L27/2602 ,  H04L27/2613 ,  H04W16/14 ,  H04W72/0453 ,  H04W74/002 ,  H04W74/004 ,  H04W74/0816

Abstract: Methods, systems, and devices are described for wireless communication at a device. A device may distinguish a preamble sent from a device configured for a first RAT (e.g., WLAN, Wi-Fi, etc.) from a preamble sent from a device configured for a second RAT (e.g., LTE, LTE-A, LTE-U, etc.). A wireless device associated with a second RAT may transmit a dual-use preamble over a contention-based frequency channel. The dual-use preamble may function as a valid preamble for a first RAT and may be received and decoded by devices associated with the first RAT in addition to devices associated with the second RAT. The dual-use preamble may also include a signature associated with the second RAT. The signature may be embedded with the preamble such that it minimizes interference with the valid preamble and be detected by devices associated with the second RAT.

公开(公告)号：US09936494B2

公开(公告)日：2018-04-03

申请号：US15435819

申请日：2017-02-17

Applicant: QUALCOMM Incorporated

Inventor： Stefan Geirhofer ,  Peter Gaal ,  Yongbin Wei

IPC: H04W72/04 ,  H04W72/08 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/005 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/082

Abstract: Methods and apparatus are provided for assigning interference measurement resources. A method includes receiving at least one identifier, which determines, at least in part, at least one interference measurement resource that partially overlaps with another at least one interference measurement resource. The at least one interference measurement resource comprises a number of resource elements out of a set of resource elements. The method also includes measuring interference based at least in part on the at least one interference measurement resource.

公开(公告)号：US09929844B2

公开(公告)日：2018-03-27

申请号：US14866428

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Tao Luo ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu

IPC: H04L5/00 ,  H04L27/26 ,  H04W74/08 ,  H04W16/14

CPC classification number: H04L5/0053 ,  H04L27/261 ,  H04W16/14 ,  H04W74/0816

Abstract: A device may determine that an unlicensed radio frequency (RF) spectrum band is available for a communication. The device may transmit a first transmission indicator that indicates that the device is transmitting information via the unlicensed RF spectrum band. The first transmission indicator may be associated with a first radio access technology. The device may transmit a second transmission indicator that indicates that the device is transmitting information via the unlicensed RF spectrum band. The second transmission indicator may be associated with a second radio access technology that is different from the first radio access technology.

公开(公告)号：US09882623B2

公开(公告)日：2018-01-30

申请号：US14850737

申请日：2015-09-10

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Siddhartha Mallik ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/0456 ,  H04L1/00 ,  H04W72/12 ,  H04B7/0452

CPC classification number: H04B7/0619 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0636 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0028 ,  H04W72/1226

Abstract: Dual-thread feedback for non-orthogonal channels used in wireless communications systems is described. A first feedback thread may employ transmission strategy (TS) independent feedback and a second feedback thread may employ TS dependent feedback. The first feedback thread may include channel feedback from channel measurements (e.g., channel gain, noise covariance, etc.) and may be fed back periodically. A TS space may be determined that includes combinable TSs for UEs that may be grouped for non-orthogonal techniques, and one or more TS sets may be sent to the UEs. UEs may determine channel quality and/or other channel state information (CSI) for the TSs and report CSI for one or more TSs of the TS sets in a second feedback thread. Scheduling may be performed for transmissions to the UEs based on the feedback in the first and/or second feedback threads.