公开(公告)号：US10142984B2

公开(公告)日：2018-11-27

申请号：US14978547

申请日：2015-12-22

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Yongbin Wei ,  Peter A. Barany

IPC: H04W72/04 ,  H04W16/10 ,  H04L5/00 ,  H04J11/00 ,  H04W16/14

Abstract: Methods and apparatus for providing wireless communications using subframe partitioning are disclosed. Two or more base stations may be allocated subframes in a radio frame. All or part of the subframe allocation may be provided to the associated user equipment (UEs), which may use it to determine signal metrics during assigned subframes for an associated base station.

公开(公告)号：US10129858B2

公开(公告)日：2018-11-13

申请号：US14951393

申请日：2015-11-24

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Aleksandar Damnjanovic ,  Onkar Jayant Dabeer ,  Peter Gaal ,  Wanshi Chen ,  Shimman Arvind Patel ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W4/00 ,  H04W72/04 ,  H04W28/02 ,  H04W72/14 ,  H04W74/08 ,  H04L1/18 ,  H04W74/00 ,  H04L5/00 ,  H04W76/27 ,  H04J11/00 ,  H04W72/12 ,  H04W74/02

Abstract: Certain aspects relate to methods and apparatus for latency reduction for UEs in a RRC connected mode. During contention-based uplink access by groups of UEs within a subframe, an eNB may decode the received uplink transmission based, at least in part, on the assigned group of resources assigned to the UE and used for transmission. Additional orthogonalization techniques such as reduced TTI size can be used to reduce collisions among different users performing contention-based transmissions. Furthermore, when the eNB fails to successfully decode the uplink transmission, the eNB may identify the UE that sent the uplink transmission based on a detected reference signal and may transmit an uplink assignment to the identified UE.

公开(公告)号：US10129857B2

公开(公告)日：2018-11-13

申请号：US14933902

申请日：2015-11-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Ravi Teja Sukhavasi ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W72/04 ,  H04W74/00 ,  H04L5/00 ,  H04L12/26 ,  H04W74/08 ,  H04W72/14

Abstract: A method and apparatus for uplink transmission by a user equipment (UE) includes receiving a first assignment for one or more beacon signals. The first assignment includes a first resource assignment and a first interlace assignment. The UE may determine that a size of a payload of an uplink transmission is less than a threshold. The UE may transmit the one or more beacon signals according to the first assignment in response to the determination. The one or more beacon signals increase bandwidth occupancy by the UE over a contention-based spectrum. Additionally, the UE may receive a second assignment for the payload of the uplink transmission. The second assignment includes a second resource assignment and a second interlace assignment. The UE may transmit the payload of the uplink transmission according to the second resource assignment on the second interlace assignment.

公开(公告)号：US20180302208A1

公开(公告)日：2018-10-18

申请号：US16012086

申请日：2018-06-19

Applicant: QUALCOMM Incorporated

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

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

Abstract: Techniques are described for wireless communication. A first method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an interlace of a component carrier of an unlicensed radio frequency spectrum band. The interlace includes a plurality of non-contiguous concurrent resource blocks in the unlicensed radio frequency spectrum band, and at least two resource blocks in the interlace include different portions of the uplink control information. A second method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an uplink control channel of an unlicensed radio frequency spectrum band. Resources of the uplink control channel are divided into a plurality of discrete dimensions and the uplink control information of the wireless device is transmitted over a number of the discrete dimensions allocated to the uplink control information of the wireless device.

公开(公告)号：US10104565B2

公开(公告)日：2018-10-16

申请号：US14565063

申请日：2014-12-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Durga Prasad Malladi ,  Yongbin Wei ,  Hao Xu ,  Tingfang Ji ,  Naga Bhushan ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/10 ,  H04W16/14 ,  H04W74/08 ,  H04W84/12

Abstract: Channel state information (CSI) feedback in long term evolution (LTE) and LTE-Advanced (LTE-A) networks including unlicensed spectrum is disclosed in which a base station obtains clear channel assessment (CCA) result information from neighboring base stations, either directly or by determining such results from measurement or reports from user equipment (UE) served by the base station. The base station may then generate control signaling based on the CCA result information for transmission to the one or more UEs served by the base station.

公开(公告)号：US20180249505A1

公开(公告)日：2018-08-30

申请号：US15961606

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W74/08 ,  H04B17/327 ,  H04L5/00 ,  H04W56/00 ,  H04B17/336 ,  H04B17/318 ,  H04W16/14

Abstract: The disclosure provides for control plane measurements in a wireless device. The wireless device may measure, across multiple sub-frames received over an unlicensed spectrum, received cell-specific reference signals (CRS) from a cell to obtain CRS measurements. The wireless device may identify one or both of a first subset of the CRS measurements associated with a first subset of the sub-frames including opportunistic transmissions and a second subset of the CRS measurements associated with a second subset of the sub-frames including guaranteed transmissions. The wireless device may compute one or both of a first signal to interference plus noise ratio (SINR) value for the first subset of the CRS measurements and a second SINR value for the second subset of the CRS measurements. The wireless device may monitor a radio link condition of the wireless device based at least in part on the first SINR value or the second SINR value.

公开(公告)号：US10045334B2

公开(公告)日：2018-08-07

申请号：US15042122

申请日：2016-02-11

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Seyed Ali Akbar Fakoorian ,  Brian Clarke Banister ,  Peter Gaal ,  Yongbin Wei

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04W4/00 ,  H04W8/08

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to reference signal design for communications with coverage enhancements and devices with limited communications resources, such as machine type communication (MTC) devices, enhanced or evolved MTC (eMTC) devices, and internet of things (IoT) devices. An example method generally includes determining a set of additional reference signals to transmit in a bundled transmission, based on a bundle length of the bundled transmission, and transmitting the bundled transmission, reference signals, and the additional reference signals, based on the determination.

公开(公告)号：US10009926B2

公开(公告)日：2018-06-26

申请号：US14736946

申请日：2015-06-11

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Miguel Griot ,  Hao Xu ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W74/08 ,  H04W4/70 ,  H04W76/27

CPC classification number: H04W74/0833 ,  H04W4/70 ,  H04W76/27

Abstract: Certain aspects of the present disclosure generally relate to techniques for connectionless access by a wireless device. Such connectionless access may allow for the transmission of data without the overhead associated with establishing conventional connected access (e.g., radio resource control (RRC) connection) to a network. As a result, a device with relatively little data to transmit, such as a machine type communications (MTC) device, may be able to efficiently exit an idle mode, transmit the data during a connectionless access, and subsequently return to idle mode in a shorter period of time than conventional methods.

公开(公告)号：US10009925B2

公开(公告)日：2018-06-26

申请号：US14873079

申请日：2015-10-01

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W4/00 ,  H04W74/08 ,  H04B17/318 ,  H04B17/336 ,  H04W16/14 ,  H04W56/00 ,  H04L5/00 ,  H04B17/327

CPC classification number: H04W74/0816 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336 ,  H04L5/00 ,  H04W16/14 ,  H04W56/0095

Abstract: The disclosure provides for control plane measurements in a wireless device. The wireless device may perform, on signals received over an unlicensed spectrum across multiple sub-frames, radio resource management (RRM) measurements of a cell. The wireless device may identify one or both of a first subset of the RRM measurements associated with a first subset of the sub-frames including opportunistic transmissions and a second subset of the RRM measurements associated with a second subset of the sub-frames including guaranteed transmissions. The wireless device may determine one or more RRM measurement values based on one or both of the first subset of the RRM measurements and the second subset of the RRM measurements. The wireless device may similarly perform radio link management (RLM) measurements and determine RLM measurement values based on the first and second subsets. The wireless device may also use timers for uplink transmissions to detect radio link failures.

公开(公告)号：US09998960B2

公开(公告)日：2018-06-12

申请号：US14944131

申请日：2015-11-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W36/00 ,  H04W52/02 ,  H04W36/08 ,  H04W56/00

CPC classification number: H04W36/0061 ,  H04W36/0055 ,  H04W36/0072 ,  H04W36/08 ,  H04W52/0206 ,  H04W56/001 ,  H04W76/10 ,  H04W76/27 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a second base station. The second base station receives a measurement report and a cell identifier, associated with a first base station, from a UE. The second base station determines, based on the cell identifier, that the first base station is in a dormant state. The second base station sends an activation request to the first base station, based on the measurement report, to prompt the first base station to transition from the dormant state to an active state. The second base station further includes handing off the UE to the first base station.