公开(公告)号：US09749771B2

公开(公告)日：2017-08-29

申请号：US13843985

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Wanshi Chen ,  Yongbin Wei ,  Peter Gaal ,  Tingfang Ji

IPC: H04W4/00 ,  H04W48/12 ,  H04W28/06

CPC classification number: H04W72/042 ,  H04B7/0413 ,  H04W4/70 ,  H04W16/28 ,  H04W28/06 ,  H04W48/12 ,  H04W84/042

Abstract: The described aspects include methods and apparatus providing MTC in a wireless network. In an aspect, a narrow bandwidth within a wide system bandwidth is allocated for communicating data related to MTC. MTC control data generated for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth is transmitted over the one or more MTC control channels. The one or more MTC channels are multiplexed with one or more legacy channels over the wide system bandwidth. Other aspects are provided for transmission mode and content of the MTC control data or other MTC data.

公开(公告)号：US09722731B2

公开(公告)日：2017-08-01

申请号：US15405598

申请日：2017-01-13

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Gavin Bernard Horn ,  Madhavan Srinivasan Vajapeyam ,  Jelena Damnjanovic ,  Yongbin Wei

IPC: H04W24/10 ,  H04W84/12 ,  H04W24/02 ,  H04L1/16 ,  H04L12/891 ,  H04W84/04 ,  H04W88/10 ,  H04W80/02

CPC classification number: H04L1/1628 ,  H04L1/1685 ,  H04L47/34 ,  H04L47/41 ,  H04L49/9057 ,  H04W24/10 ,  H04W28/0205 ,  H04W80/02 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06 ,  H04W88/10

Abstract: Certain aspects of the present disclosure relate to techniques for aggregating data from a wireless wide area network (WWAN) and wireless local area network (WLAN). In some aspects, a packet convergence entity (e.g., PDCP layer entity) communicates with first and second radio access technology (RAT) links. The packet convergence entity may determine from which of the first and second RAT links a data packet is received and may monitor a sequence number value of each of the received data packets. The packet convergence entity may perform one or more actions based on a determination that one or more packets are missing based on the monitored sequence number values. The packet convergence entity may send a status report in response to one or more events on one or both of the first RAT link and the second RAT link.

公开(公告)号：US09706572B2

公开(公告)日：2017-07-11

申请号：US14618704

申请日：2015-02-10

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Ahmed Kamel Sadek ,  Kiran Kumar Somasundaram ,  Anastasios Stamoulis ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Dexu Lin

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/0816

Abstract: Techniques are described for wireless communication. One method includes implementing, at a first node, a first access protocol to contend for access to a wireless communication medium shared by a plurality of nodes; determining whether a triggering event has occurred; and implementing, at the first node, a second access protocol to contend for access to the wireless communication medium based at least in part on a determination that the triggering event has occurred.

公开(公告)号：US20170195081A1

公开(公告)日：2017-07-06

申请号：US15463825

申请日：2017-03-20

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/00 ,  H04L1/18 ,  H04L1/08

Abstract: Resource mapping and coding schemes to handle bursty interference are disclosed that provide for spreading the modulated symbols for one or more transmission code words over more symbols in the time-frequency transmission stream. Certain aspects allow for the modulated symbols to be based on bits from more than one code word. Other aspects also provide for re-mapping code word transmission sequences for re-transmissions based on the number of re-transmissions requested by the receiver. Additional aspects provide for layered coding that uses a lower fixed-size constellation to encode/decode transmissions in a layered manner in order to achieve a larger-size constellation encoding. The layered encoding process allows the transmitter and receiver to use different coding rates for each coding layer. The layered encoding process also allows interference from neighboring cells to be canceled without knowledge of the actual constellation used to code the interfering neighboring signal.

公开(公告)号：US20170181003A1

公开(公告)日：2017-06-22

申请号：US15451263

申请日：2017-03-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04W72/04 ,  H04W56/00

CPC classification number: H04W16/14 ,  H04W48/08 ,  H04W48/12 ,  H04W48/16 ,  H04W56/00 ,  H04W56/0005 ,  H04W56/0015 ,  H04W72/0446 ,  H04W72/0453

Abstract: Long term evolution (LTE)/LTE-Advanced (LTE-A) deployments with unlicensed spectrum leverage more efficient LTE communication aspects over unlicensed spectrum, such as over WIFI radio access technology. In order to accommodate such communications, various downlink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.

公开(公告)号：US09641310B2

公开(公告)日：2017-05-02

申请号：US14536830

申请日：2014-11-10

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Yongbin Wei

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04J11/00

CPC classification number: H04L5/0073 ,  H04J11/005 ,  H04W72/048 ,  H04W72/082

Abstract: Aspects of the present disclosure relate to techniques for network assisted interference cancellation (NAIC). An example method generally includes receiving network assisted interference cancellation (NAIC) information from a potentially interfering neighbor base station, and performing interference cancellation, suppression or mitigation when processing a signal from a serving base station using the NAIC information.

公开(公告)号：US09634802B2

公开(公告)日：2017-04-25

申请号：US14471138

申请日：2014-08-28

Applicant: QUALCOMM Incorporated

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

IPC: H03M13/00 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04L27/34

CPC classification number: H04L1/0006 ,  H04L1/0034 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1893 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0073 ,  H04L5/1469 ,  H04L27/3488

Abstract: Resource mapping and coding schemes to handle bursty interference are disclosed that provide for spreading the modulated symbols for one or more transmission code words over more symbols in the time-frequency transmission stream. Certain aspects allow for the modulated symbols to be based on bits from more than one code word. Other aspects also provide for re-mapping code word transmission sequences for re-transmissions based on the number of re-transmissions requested by the receiver. Additional aspects provide for layered coding that uses a lower fixed-size constellation to encode/decode transmissions in a layered manner in order to achieve a larger-size constellation encoding. The layered encoding process allows the transmitter and receiver to use different coding rates for each coding layer. The layered encoding process also allows interference from neighboring cells to be canceled without knowledge of the actual constellation used to code the interfering neighboring signal.

公开(公告)号：US09609663B2

公开(公告)日：2017-03-28

申请号：US14068578

申请日：2013-10-31

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Tingfang Ji ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Kiran Kumar Somasundaram ,  Miguel Griot

IPC: H04W4/00 ,  H04W74/00 ,  H04W52/02 ,  H04W74/08 ,  H04W88/04

CPC classification number: H04W74/002 ,  H04W52/0229 ,  H04W74/0833 ,  H04W88/04 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21

Abstract: Techniques are provided for decoupling uplink and downlink operations. According to certain aspects, a wireless node (e.g., a low power node) may receive, from a base station of a first cell, signaling indicating a random access channel (RACH) configuration for a wireless device. The wireless node may then detect the wireless node performing a RACH detection (based on the RACH configuration) and report the RACH detection and desired UL configuration to the base station of the first cell. The base station of the first cell may then select the wireless node for serving the wireless device for UL operations (e.g., based on the reported RACH detection-and similar reports from other wireless nodes detecting the same RACH procedure).

公开(公告)号：US09609537B2

公开(公告)日：2017-03-28

申请号：US13781605

申请日：2013-02-28

Applicant: QUALCOMM Incorporated

Inventor： Stefan Geirhofer ,  Peter Gaal ,  Yongbin Wei

IPC: G06F15/00 ,  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：US09591571B2

公开(公告)日：2017-03-07

申请号：US13802637

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/16 ,  H04W52/02

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus transitions to a dormant state and transmits a very low duty cycle signal (LDCS) while in the dormant state. The apparatus may transmit an LDCS configuration to a second entity, the second entity being one of an LPN that is not in a dormant state and a macro cell. The apparatus may further monitor for a RACH messages at a predetermined RACH delay after transmitting the LDCS. The apparatus may transition to a DRX/DTX mode. The DRX/DTX mode may be matched to at least one connected UE.