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公开(公告)号:US09877282B2
公开(公告)日:2018-01-23
申请号:US15371507
申请日:2016-12-07
Applicant: QUALCOMM Incorporated
Inventor: Hao Xu , Durga Prasad Malladi , Yongbin Wei , Peter Gaal , Wanshi Chen , Aleksandar Damnjanovic , Tao Luo
CPC classification number: H04W52/0225 , H04B7/14 , H04L5/0007 , H04W52/0206 , H04W52/0209 , H04W52/0216 , H04W52/0229 , H04W74/0833 , H04W88/04 , H04W88/08 , Y02B70/30 , Y02D70/00 , Y02D70/122 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146 , Y02D70/21 , Y02D70/24 , Y02D70/25
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives an LDCS configuration for a UE relay from a second entity and monitors for an LDCS from the UE relay based on the received LDCS configuration. The second entity may comprise one of an LPN that is not in a dormant state and a Macro cell. The apparatus may receive LDCS configurations for a plurality of LPNs and monitor for a plurality of LPNs based on the received LDCS configurations. When the apparatus determines a need to connect to a LPN, the apparatus may select an LPN among the plurality of LPNs.
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公开(公告)号:US20180014336A1
公开(公告)日:2018-01-11
申请号:US15713250
申请日:2017-09-22
Applicant: QUALCOMM Incorporated
Inventor: Alan Barbieri , Hao Xu , Vikas Jain , Durga Prasad Malladi , Awaiz Ahmad Khan , Samatha Kotla , Balwinderpal Sachdev
CPC classification number: H04W74/0833 , G01S5/00 , G01S5/02 , H04L1/00 , H04W28/16 , H04W52/0206 , H04W52/0229 , H04W52/283 , H04W64/00 , Y02D70/122 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/20
Abstract: Improvements to signaling procedures for use in physical random access channel (PRACH)-based proximity detection are disclosed. Signaling and signaling processes from a serving base station may trigger a more efficient and reliable transmission of PRACH from related user equipment (UE). At the dynamic power nodes (DPNs) monitoring for such PRACH-based proximity, features are disclosed which establish neighbor lists for more efficient management of detection and proximity activation.
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143.
公开(公告)号:US20180014244A1
公开(公告)日:2018-01-11
申请号:US15694651
申请日:2017-09-01
Applicant: QUALCOMM Incorporated
Inventor: Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Tao Luo
CPC classification number: H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
Abstract: Systems and methodologies are described that facilitate efficient cell acquisition in a wireless communication system. In one aspect, a reference signal for use in cell acquisition can be constructed in a bandwidth-agnostic manner such that it contains a common central portion in a predetermined frequency band that is independent of a bandwidth utilized by an associated wireless communication system. The central portion can be constructed as a two-dimensional block in time and frequency that spans a default cell search bandwidth, a predetermined bandwidth specified by synchronization codes or other signals, or another suitable bandwidth. A reference signal can then be constructed form the central portion by tiling or expanding the central portion such that it spans the entire system bandwidth.
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144.
公开(公告)号:US09867055B2
公开(公告)日:2018-01-09
申请号:US14685051
申请日:2015-04-13
Applicant: QUALCOMM Incorporated
Inventor: Aleksandar Damnjanovic , Naga Bhushan , Durga Prasad Malladi , Yongbin Wei , Kiran Kumar Somasundaram , Wanshi Chen , Peter Gaal , Tao Luo , Hao Xu
CPC classification number: H04W16/14 , H04J3/1694 , H04W72/044 , H04W74/08
Abstract: Techniques are described for wireless communication. One method includes identifying, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band, and aligning a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band.
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公开(公告)号:US09844072B2
公开(公告)日:2017-12-12
申请号:US14839678
申请日:2015-08-28
Applicant: QUALCOMM Incorporated
Inventor: Wanshi Chen , Peter Gaal , Shimman Arvind Patel , Durga Prasad Malladi , Aleksandar Damnjanovic , Hao Xu , Yongbin Wei
IPC: H04L12/26 , H04W72/14 , H04L1/18 , H04L5/00 , H04L27/26 , H04W72/04 , H04L1/16 , H04L25/02 , H04L1/00 , H04W88/02
CPC classification number: H04W72/14 , H04L1/0003 , H04L1/0031 , H04L1/0088 , H04L1/1671 , H04L1/1685 , H04L1/1812 , H04L1/1861 , H04L1/1887 , H04L5/0007 , H04L5/0048 , H04L5/0078 , H04L5/0092 , H04L5/0096 , H04L25/0224 , H04L27/2601 , H04W72/0413 , H04W88/02
Abstract: Various aspects described herein relate to communicating in a wireless network. An uplink resource grant can be received from a network entity for communicating in the wireless network. A transmission time interval (TTI) for an uplink transmission within a subframe based on the uplink resource grant can be determined, wherein the TTI comprises one or more symbols which are a subset of a plurality of symbols in the subframe. Communications can be transmitted to the network entity over resources specified in the uplink resource grant during the TTI.
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公开(公告)号:US20170325201A1
公开(公告)日:2017-11-09
申请号:US15658160
申请日:2017-07-24
Applicant: QUALCOMM Incorporated
Inventor: Wanshi Chen , Peter Gaal , Durga Prasad Malladi , Tao Luo , Tingfang Ji , Naga Bhushan , Yongbin Wei , Aleksandar Damnjanovic
CPC classification number: H04W72/04 , H04L5/001 , H04L5/003 , H04L27/0006 , H04W16/14 , H04W72/1215 , H04W74/0833
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 uplink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.
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公开(公告)号:US09781663B2
公开(公告)日:2017-10-03
申请号:US14469205
申请日:2014-08-26
Applicant: QUALCOMM Incorporated
Inventor: Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Tao Luo
CPC classification number: H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
Abstract: Systems and methodologies are described that facilitate efficient cell acquisition in a wireless communication system. In one aspect, a reference signal for use in cell acquisition can be constructed in a bandwidth-agnostic manner such that it contains a common central portion in a predetermined frequency band that is independent of a bandwidth utilized by an associated wireless communication system. The central portion can be constructed as a two-dimensional block in time and frequency that spans a default cell search bandwidth, a predetermined bandwidth specified by synchronization codes or other signals, or another suitable bandwidth. A reference signal can then be constructed form the central portion by tiling or expanding the central portion such that it spans the entire system bandwidth.
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公开(公告)号:US09763172B2
公开(公告)日:2017-09-12
申请号:US14818835
申请日:2015-08-05
Applicant: QUALCOMM Incorporated
Inventor: Madhavan Srinivasan Vajapeyam , Miguel Griot , Hao Xu , Wanshi Chen , Yongbin Wei , Durga Prasad Malladi
CPC classification number: H04W48/12 , H04W24/08 , H04W52/0216 , H04W76/28 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/21 , Y02D70/24
Abstract: A user equipment (UE) may determine when to monitor for downlink (DL) communications such as paging messages based on both a received extended idle discontinuous reception (eI-DRX) cycle and a change in a downlink channel reliability condition of the UE. A base station may also adjust its transmission of paging information to a UE based on a eI-DRX cycle.
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公开(公告)号:US09755807B2
公开(公告)日:2017-09-05
申请号:US14754033
申请日:2015-06-29
Applicant: QUALCOMM Incorporated
Inventor: Byoung-Hoon Kim , Durga Prasad Malladi , Hao Xu
IPC: H04L1/00 , H04L5/00 , H04L25/02 , H04L27/26 , H04B7/0413 , H04B7/06 , H04W52/32 , H04W72/04 , H04L1/02 , H04L1/06 , H04L5/02
CPC classification number: H04L5/0057 , H04B7/0413 , H04B7/0632 , H04B2201/70701 , H04L1/0002 , H04L1/02 , H04L1/06 , H04L5/023 , H04L25/0224 , H04L25/023 , H04L27/261 , H04W52/325 , H04W72/042
Abstract: Techniques for efficiently deriving uplink channel estimates without consuming much additional uplink resources are described. A user equipment (UE) may send a request for uplink resources on a request channel (REQCH) whenever the UE desires to transmit data on the uplink. The UE may send the REQCH on a set of subcarriers and from multiple antennas, e.g., send REQCH data on data subcarriers and pilot on pilot subcarriers. A Node B may receive the request, estimate the complex channel gains for the pilot subcarriers based on received pilot symbols, and coherently demodulate received data symbols based on the channel gain estimates. The Node B may estimate the complex channel gains for the data subcarriers based on demodulated data symbols and derive a channel estimate for each UE antenna based on the channel gain estimates for the pilot and data subcarriers. The Node B may use the channel estimates for MIMO scheduling, subband scheduling, and rate selection.
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公开(公告)号:US09726752B2
公开(公告)日:2017-08-08
申请号:US13672689
申请日:2012-11-08
Applicant: QUALCOMM Incorporated
Inventor: Rashid Ahmed Akbar Attar , Durga Prasad Malladi , Juan Montojo , Peter Gaal
IPC: G01S5/10 , H04W64/00 , G01S5/02 , G01S5/14 , G01S13/87 , G01S19/46 , H04W72/04 , H04W88/08 , H04W76/04 , G01S13/46
CPC classification number: H04W64/00 , G01S5/0063 , G01S5/0205 , G01S5/10 , G01S5/14 , G01S13/876 , G01S19/46 , G01S2013/466 , H04L5/0048 , H04L43/0864 , H04W56/0055 , H04W72/0413 , H04W76/28 , H04W88/02 , H04W88/08
Abstract: The subject matter disclosed herein relates to position location in a wireless communication system, and may more particularly relate to position location for a mobile station.
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