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公开(公告)号:US11212063B2
公开(公告)日:2021-12-28
申请号:US16675389
申请日:2019-11-06
Applicant: QUALCOMM Incorporated
Inventor: Yang Yang , Jing Jiang , Alexandros Manolakos , Tao Luo
Abstract: Techniques are described for wireless communication. One method for wireless communication includes transmitting, to a user equipment (UE), an indication of a control channel subcarrier spacing to be used by the UE; and transmitting a control message having a subcarrier spacing in accordance with the indication. Another method for wireless communication includes transmitting, to a UE, an indicator channel identifying at least a subcarrier spacing to be used in one or more subsequent control channels. One or more subsequent control channels are then transmitted in accordance with the subcarrier spacing indicated by the indicator channel.
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公开(公告)号:US11196523B2
公开(公告)日:2021-12-07
申请号:US16514744
申请日:2019-07-17
Applicant: QUALCOMM Incorporated
Inventor: Le Liu , Alberto Rico Alvarino , Alexandros Manolakos , Wanshi Chen , Ayan Sengupta , Xiao Feng Wang
Abstract: Certain aspects of the present disclosure provide techniques for sounding reference signal (SRS) resource configuration enhancements. A method generally includes receiving, from the network, a message comprising sounding reference signal (SRS) configuration information, wherein the SRS configuration information comprises configuration information for a first SRS resource set and configuration information for a second SRS resource set and transmitting at least one SRS according to the received SRS configuration information.
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公开(公告)号:US20210359741A1
公开(公告)日:2021-11-18
申请号:US16625591
申请日:2018-06-20
Applicant: Juan MONTOJO , Alexei Yurievitch GOROKHOV , Peter GAAL , Yu ZHANG , Joseph Binamira SORIAGA , Tingfang JI , Hari SANKAR , Alexandros MANOLAKOS , Qualcomm Incorporated
Inventor: Juan Montojo , Alexei Yurievitch Gorokhov , Peter Gaal , Yu Zhang , Joseph Binamira Soriaga , Tingfang Ji , Hari Sankar , Alexandros Manolakos
IPC: H04B7/06 , H04B7/0413
Abstract: Techniques are discussed herein identify transmission strategies and to communicate those identified transmission strategies in a transparent communication environment. In some examples, a user equipment (UE) may identify a new transmission strategy for a downlink channel different from a current transmission strategy for the down link channel. The UE may transmit a channel state information (CSI) message that includes an indication of the new transmission strategy identified by the UE. In some examples, a base station may identify the new transmission strategy for the downlink channel. The base station may transmit a codebook subset restriction (CSR) indicator that includes an indication of the new transmission strategy identified by the base station. In some examples, the UE may modify its feedback strategy based on the new transmission strategy.
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公开(公告)号:US11166177B2
公开(公告)日:2021-11-02
申请号:US16773778
申请日:2020-01-27
Applicant: QUALCOMM Incorporated
Inventor: Wenjun Li , Tao Luo , Alexandros Manolakos
Abstract: Methods, systems, and devices for wireless communication are disclosed. Flexible interleaving configurations may be employed to support various operations, including beamforming. Flexible interleaving may include dynamically or semi-statically determining a combination of bit-level, tone-level, tone-group level, or other interleaving technique for one or more transmissions. The interleaving configuration may be based on delay spread, a coherence bandwidth, a signal to noise ratio, a Doppler spread, or a combination thereof. An interleaving configuration may be a determination may be made by a base station or some other network entity and explicitly signaled to another device. Additionally or alternatively, the determination may be made based on one or more implicit rules, which may be based on a variety of factors (e.g., available bandwidth, modulation and coding scheme (MCS), code block (CB) size). Further, interleaving may be enabled (or disabled) under certain conditions.
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公开(公告)号:US11153061B2
公开(公告)日:2021-10-19
申请号:US16488150
申请日:2018-03-29
Applicant: QUALCOMM Incorporated
Inventor: Alexandros Manolakos , Chong Li , Jing Jiang , Yu Zhang , Joseph Binamira Soriaga , Wanshi Chen , Tingfang Ji
Abstract: Various aspects are described for schemes that address the potential puncturing of important reference signals (RSs) for enhanced mobile broadband (eMBB) applications, such as demodulation reference signal (DMRS), channel state information reference signal (CSIRS), tracking reference signal, and general reference signal. The schemes can be used for recovery of eMBB's RS puncturing from dynamic multiplexing of ultra-reliable-low-latency communications (URLLC) and eMBB. The schemes include a block-based scheme and an over-provisioning scheme. The schemes modify an existing RS pattern before puncturing occurs in response to a presence of the URLLC traffic. In addition, there can be an option not to use (e.g., disable) time-domain orthogonal cover code (TD-OCC) for the RSs.
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公开(公告)号:US20210314203A1
公开(公告)日:2021-10-07
申请号:US17347192
申请日:2021-06-14
Applicant: QUALCOMM Incorporated
Inventor: Wei Yang , Yi Huang , Seyong Park , Gokul Sridharan , Peter Gaal , Alexandros Manolakos , Xiao Feng Wang , Tingfang Ji
Abstract: Methods, systems, and devices for wireless communications are described. A device (e.g., a base station or a user equipment (UE)) may identify a sequence length corresponding to a number of resource blocks, and select a modulation scheme based on the sequence length. The device may select, from a set of sequences associated with the modulation scheme, a sequence having the sequence length. In some examples, the set of sequences may include at least one of a set of time domain phase shift keying computer-generated sequences or a set of frequency domain phase shift keying computer-generated sequences. The device may generate a reference signal for a data transmission based on the sequence and transmit the reference signal within the number of resource blocks.
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207.
公开(公告)号:US20210306122A1
公开(公告)日:2021-09-30
申请号:US17210133
申请日:2021-03-23
Applicant: QUALCOMM Incorporated
Inventor: Alexandros Manolakos , Gokul Sridharan , Seyedkianoush Hosseini
Abstract: Wireless communication techniques leveraging DMRS sharing patterns are disclosed. A method of wireless communication includes receiving, by a user equipment (UE) device, control information. The control information indicates mapping of uplink transmission parameters to one or more demodulation reference signal (DMRS) sharing patterns. The method further includes sending an uplink transmission to a base station in accordance with a DMRS sharing pattern. The DMRS sharing pattern is selected from among the one or more DMRS sharing patterns based on one or more parameters of the uplink transmission. Other aspects and features are also claimed and described.
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公开(公告)号:US20210306037A1
公开(公告)日:2021-09-30
申请号:US16488235
申请日:2018-04-04
Applicant: Makesh Pravin JOHN WILSON , June NAMGOONG , Yu ZHANG , Alexandros MANOLAKOS , Jing SUN , Tao LUO , Bilal SADIQ , Qualcomm Incorporated
Inventor: Makesh Pravin John Wilson , June Namgoong , Yu Zhang , Alexandros Manolakos , Jing Sun , Tao Luo , Bilal Sadiq
IPC: H04B7/0452 , H04W72/04 , H04L25/02
Abstract: Methods, systems, and devices for wireless communication are described. In multi-user (MU) multiple-input multiple-output (MIMO) wireless communications systems, a base station may perform signaling to indicate information related to ports assigned to one or more UEs. The base station may also signal information regarding ports shared with other UEs, which the UE may use when performing channel estimation. In some examples, the base station may signal a number of ports used per sub-band to the UE or a number of demodulation reference signal (DMRS) ports used by the UE. The base station may signal a sub-set of a total number of ports that are shared by other UEs overlapping with the resource allocation of the UE. The signaling may indicate a number of combs used by the base station in the resource allocation for the UE.
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公开(公告)号:US11129182B2
公开(公告)日:2021-09-21
申请号:US16535927
申请日:2019-08-08
Applicant: QUALCOMM Incorporated
Inventor: Yi Huang , Wanshi Chen , Xiaoxia Zhang , Alexandros Manolakos
IPC: H04W72/12
Abstract: Methods, systems, and devices for wireless communications are described. In some cases, multiple timing advances (TAs) may be configured for non-coherent joint transmission (NCJT) with respective transmit receive points (TRPs). For example, a NCJT mode may have multiple TAs semi-statically configured for the UE to follow for each TRP. In some cases, a TA index corresponding to a TA for a TRP may be added as a field to a sounding reference signal (SRS) resource definition (e.g., SRS resource configuration). Additionally or alternatively, the TA index may be determined from an SRS index transmitted by the TRP, where the TA index corresponds to a TA for uplink information in a physical uplink shared channel. Additionally or alternatively, the TA index may be included as a field in a physical uplink control channel (PUCCH) definition to indicate a TA for a corresponding PUCCH that the UE transmits to the TRP.
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公开(公告)号:US11082183B2
公开(公告)日:2021-08-03
申请号:US17006432
申请日:2020-08-28
Applicant: QUALCOMM Incorporated
Inventor: Jingchao Bao , Sony Akkarakaran , Tao Luo , Alexandros Manolakos
Abstract: Disclosed are techniques related to wireless communication. In an aspect, a sequence generating entity factorizes a comb size N into prime factors of N, and generates one or more offset sequences for a reference signal for positioning based on one or more sequence lists associated with the prime factors of N and a number of symbols M over which the reference signal is scheduled.
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