-
1.发明申请公开(公告)号：US20180368171A1
公开(公告)日：2018-12-20
申请号：US16004179
申请日：2018-06-08
Applicant: QUALCOMM Incorporated
Inventor： Kaushik CHAKRABORTY , Tao LUO , Sumeeth NAGARAJA , Keiichi KUBOTA , Makesh Pravin JOHN WILSON , Juan MONTOJO , Xiao feng WANG , Sony AKKARAKARAN , Wooseok NAM
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a signal characteristic of a unicast signal is better than a signal characteristic of a broadcast signal; and/or transmit, based at least in part on the determination, a request for an update to a master information block or a minimum system information block to be provided to the user equipment using the unicast signal. In some aspects, a base station may determine that a signal characteristic of a unicast signal associated with a user equipment (UE) is better than a signal characteristic of a broadcast signal broadcasted by the base station; and/or transmit, based on the determination, an update to a master information block (MIB) or a minimum system information block (MSIB) to the UE using the unicast signal. Numerous other aspects are provided.
-
2.发明申请公开(公告)号：US20180294911A1
公开(公告)日：2018-10-11
申请号：US15873441
申请日：2018-01-17
Applicant: QUALCOMM Incorporated
Inventor： Jing SUN , Tao LUO , Tamer KADOUS , Juan MONTOJO , Xiao feng WANG , Sony AKKARAKARAN
CPC classification number: H04J11/0086 , H04J11/0093 , H04J2011/0096 , H04L5/0053 , H04W48/12 , H04W72/1289
Abstract: User equipment associated with a legacy network may utilize a bottom-to-top search technique to identify relevant control channel samples. Generating a control channel that is configured for the bottom-to-top search technique may lead to poor performance in a single-carrier waveform, which may be disadvantageous as networks move toward New Radio. In some aspects, described herein, a base station generates a control channel that is configured to minimize gaps in the control channel, and a user equipment performs a top-to-bottom search technique to identify relevant control channel samples. By using the top-to-bottom search technique, degradation of single-carrier waveforms is reduced and efficiency is improved.
-
公开(公告)号：US20180279292A1
公开(公告)日：2018-09-27
申请号：US15726229
申请日：2017-10-05
Applicant: QUALCOMM Incorporated
Inventor： Tao LUO , Jing SUN , Sony AKKARAKARAN , Tamer KADOUS , Xiao feng WANG , Akula REDDY
Abstract: When a base station is capable of using multiple different types of waveforms for a downlink communication to a UE, the UE may waste processing resources attempting to receive and/or process the downlink communication. For example, the UE may cycle through various possible types of waveforms in an attempt to process the downlink communication. Techniques described herein use waveform signaling for downlink communications to notify the UE of a type of waveform being used for a downlink communication, thereby conserving UE resources (e.g., processing resources, memory resources, RF resources, and/or the like) that would otherwise be wasted attempting to process the downlink communication using multiple types of waveforms.
-
公开(公告)号：US20180248673A1
公开(公告)日：2018-08-30
申请号：US15710739
申请日：2017-09-20
Applicant: QUALCOMM Incorporated
Inventor： Kapil BHATTAD , Xiao feng WANG , Alberto RICO ALVARINO , Hao XU
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one aspect, the apparatus may receive information associated with a narrowband TDD frame structure. The apparatus may also transmit an uplink transmission a predetermined number of times using a first scrambling sequence. In one aspect, the first scrambling sequence may be determined using a first number of least significant bits (LSBs) associated with a first radio frame. In another aspect, the first number of LSBs may be larger than a second number of LSBs used in a second scrambling sequence associated with a narrowband frequency-division duplex (FDD) uplink transmission.
-
公开(公告)号：US20180248672A1
公开(公告)日：2018-08-30
申请号：US15710731
申请日：2017-09-20
Applicant: QUALCOMM Incorporated
Inventor： Kapil BHATTAD , Xiao feng WANG , Alberto RICO ALVARINO , Hao XU
Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In a further aspect, the apparatus may receive information associated with a narrowband TDD frame structure having a first contiguous uplink transmission duration. The apparatus may transmit a first portion of an uplink transmission comprising a first number of slots in the first contiguous uplink transmission duration. In certain aspects, the uplink transmission may have a duration longer than the first contiguous uplink transmission duration.
-
Patent Agency Ranking
公开(公告)号：US20170346667A1
公开(公告)日：2017-11-30
申请号：US15674329
申请日：2017-08-10
Applicant: QUALCOMM Incorporated
Inventor： Xiao feng WANG , Junyi LI , Zhi-Zhong YU
CPC classification number: H04L27/2007 , H04L1/206 , H04L5/0005 , H04L27/2003 , H04L27/2057 , H04L27/2601 , H04L2025/03414
Abstract: A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
-
公开(公告)号：US20170317816A1
公开(公告)日：2017-11-02
申请号：US15433506
申请日：2017-02-15
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Peter GAAL , Hao XU , Wanshi CHEN , Xiao feng WANG
CPC classification number: H04L7/041 , H04J11/0076 , H04J13/0062 , H04J13/10 , H04J13/107 , H04W48/16
Abstract: In order to address the needs of narrow band communication, eNB-based processing and/or UE-based processing is provided to achieve robust detection of cell ID and SFN timing location using NB-SSS. A base station constructs a NB-SSS signal using a root index of a Zadoff-Chu (ZC) sequence, a scrambling code, a cyclic shift or phase ramping sequence, and an interleaving sequence, wherein a combination of the ZC root index, the scrambling code index, the cyclic shift or phase ramping sequence index, and the interleaving sequence index signals information for a cell identifier (e.g., PCID) and frame timing. The ZC sequence used may be a long ZC sequence constructed to span a total number of tones allocated to an SSS sequence or may be a concatenation of multiple ZC sequences, wherein the concatenated ZC sequences span a total number of tones allocated to an SSS sequence.
-
公开(公告)号：US20170238292A1
公开(公告)日：2017-08-17
申请号：US15428242
申请日：2017-02-09
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Xiao feng WANG , Hao XU , Wanshi CHEN , Peter GAAL , Juan MONTOJO , Seyed Ali Akbar FAKOORIAN
CPC classification number: H04W72/044 , H04L5/0048 , H04W4/00 , H04W4/023 , H04W4/70 , H04W48/00 , H04W48/12 , H04W48/16 , H04W68/005 , H04W74/0833
Abstract: Aspects of the present disclosure provide techniques and apparatus for multiple physical resource block (PRB) operations for narrowband (NB) systems, such as NB internet-of-things (IoT). In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE), which may be an NB-IoT device. The method generally includes performing a cell search based on one or more signals received in an anchor RB within a set of RBs available for narrowband communications with a base station (BS); determining a location of at least one additional RB available for the narrowband communications with the BS based on an indication received in the anchor RB; and performing narrowband communications with the BS using at least one of: the anchor RB or the at least one additional resource block.
-
9.发明申请公开(公告)号：US20180279324A1
公开(公告)日：2018-09-27
申请号：US15718418
申请日：2017-09-28
Applicant: QUALCOMM Incorporated
Inventor： Xiao feng WANG , Alberto RICO ALVARINO , Kapil BHATTAD , Hao XU
Abstract: The present disclosure may support dedicated scheduling request resources in a NPUSCH format resource structure, a NPRACH, and/or an ACK/NACK transmission associated with a downlink transmission received at the UE. In addition, the present disclosure may provide various techniques to mitigate collisions between scheduling requests transmitted by a UE, uplink transmissions sent by different UEs, and/or downlink transmissions sent by a base station. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive one or more downlink transmissions from a base station. The apparatus may determine to transmit an uplink transmission to the base station. The apparatus transmit, to the base station, a scheduling request for the uplink transmission with an ACK/NACK associated with the one or more downlink transmissions using a narrowband NPUSCH format resource structure.
-
公开(公告)号：US20180270814A1
公开(公告)日：2018-09-20
申请号：US15895789
申请日：2018-02-13
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin JOHN WILSON , Tao LUO , Sony AKKARAKARAN , Sumeeth NAGARAJA , Shengbo CHEN , Xiao feng WANG , Kaushik CHAKRABORTY
Abstract: A base station may make more efficient use of resources by transmitting data in a control region of a slot in addition to a data region. In order to avoid performance loss, the base station may adjust the data transmission in the control region in comparison to a data transmission in a data region and may signal an indication to a UE to assist the UE in receiving the data transmission in the control region. An apparatus for wireless communication at the UE receives the indication from the base station regarding the data transmission in the control region and uses the indication to perform rate matching or demodulation of the data transmission in the control region. The indication may indicate any of a different MCS/rank/TPR, a reduced MCS/rank/TPR, an MCS/rank/TPR delta, a control span for a group of UEs, and a starting symbol for the data transmission. The indication may also indicate that there is no data transmitted on resources in the control region.
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.052 seconds)
