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公开(公告)号:US20210392678A1
公开(公告)日:2021-12-16
申请号:US17458074
申请日:2021-08-26
Applicant: QUALCOMM Incorporated
Inventor: Renqiu WANG , Wanshi CHEN , Hao XU , Hung Dinh LY , Heechoon LEE
IPC: H04W74/00
Abstract: Wireless communication devices are adapted to facilitate a random access procedure. According to one example, scheduled entity can transmit a first transmission that is received by a scheduling entity. The first transmission may include a physical random access channel (PRACH) preamble sequence and a first message including information for determining a device-specific network identifier for the scheduled entity. The scheduling entity may transmit a second transmission that is received by the scheduled entity. The second transmission may include information on a physical downlink control channel (PDCCH) addressed to the device-specific network identifier for the scheduled entity, and a second message on a physical downlink shared channel (PDSCH). Other aspects, embodiments, and features are also included.
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公开(公告)号:US20210345423A1
公开(公告)日:2021-11-04
申请号:US17379644
申请日:2021-07-19
Applicant: QUALCOMM Incorporated
Inventor: Hung Dinh LY , Hao XU , Wanshi CHEN , Tingfang JI , Renqiu WANG , Peter GAAL , Amir AMINZADEH GOHARI
IPC: H04W74/08 , H04W24/02 , H04W36/00 , H04L1/18 , H04W28/02 , H04W48/12 , H04W74/00 , H04W8/24 , H04L5/00 , H04W72/14
Abstract: A configurable new radio (NR) RACH procedure that may be executed by a UE and a base station is disclosed. A configuration to determine, by a user equipment, a random access procedure timeline, from multiple random access procedure timelines that each define a different duration between one or more messages that are communicated in a random access procedure can be determined or transmitted. A random access preamble can be received from the UE based on the random access procedure timeline, and a response to the random access preamble can be determined or transmitted based on the random access procedure timeline.
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公开(公告)号:US20210105079A1
公开(公告)日:2021-04-08
申请号:US15733435
申请日:2019-02-13
Applicant: Jing LEI , Renqiu WANG , Tingfang JI , Joseph Binamira SORIAGA , Yiqing CAO , Seyong PARK , Naga BHUSHAN , Wanshi CHEN , Peter GAAL , Jay Kumar SUNDARARAJAN , John Edward SMEE , QUALCOMM Incorporated
Inventor: Jing LEI , Renqiu WANG , Tingfang JI , Joseph Binamira SORIAGA , Yiqing CAO , Seyong PARK , Naga BHUSHAN , Wanshi CHEN , Peter GAAL , Jay Kumar SUNDARARAJAN , John Edward SMEE
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may apply one or more spreading sequences to a set of modulation symbols of a data set to generate spread modulation symbols; apply a scrambling sequence to the spread modulation symbols to generate a set of scrambled symbols; and transmit a waveform based at least in part on the set of scrambled symbols. Numerous other aspects are provided.
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公开(公告)号:US20210068111A1
公开(公告)日:2021-03-04
申请号:US16977393
申请日:2019-03-12
Applicant: QUALCOMM Incorporated
Inventor: Yiqing CAO , Jing LEI , Renqiu WANG , Tinfang JI
Abstract: Sequence selection techniques for Non-Orthogonal Multiple Access (NOMA) are provided. A User Equipment (UE) sends a request to a base station, the request indicating that the UE is to conduct at least one uplink transmission. The UE receives, in response to the request, an indicator of an expected system load, a value of the indicator including a total number of sequences expected to be used at one time for uplink transmissions in the system. The UE detects that at least two different pairs of sequences in a configured set of sequences have different cross correlation values, the sequences in the set configured for scrambling uplink transmissions. The UE selects, in response to the detecting and based on the indicator, at least one sequence with an improved cross correlation with at least one other sequence the at least one sequence and the at least one other sequence to be used for scrambling uplink transmissions within the system.
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公开(公告)号:US20210058924A1
公开(公告)日:2021-02-25
申请号:US17090532
申请日:2020-11-05
Applicant: QUALCOMM Incorporated
Inventor: Yi HUANG , Amir AMINZADEH GOHARI , Sony AKKARAKARAN , Renqiu WANG , Wei YANG , Peter GAAL , Wanshi CHEN
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment determine that a physical uplink shared channel (PUSCH) communication, scheduled by an uplink grant, and a physical uplink control channel (PUCCH) communication, corresponding to a physical downlink shared channel (PDSCH) communication scheduled by a downlink grant, are scheduled to overlap in one or more symbols; determine a threshold time based at least in part on an earliest scheduled starting time of the PUSCH communication or the PUCCH communication; selectively multiplex the PUSCH communication and the PUCCH communication based at least in part on whether the uplink grant, the downlink grant, and the PDSCH communication are received before the threshold time; and transmit the PUSCH communication, the PUCCH communication, or both the PUSCH communication and the PUCCH communication based at least in part on the selective multiplexing. Numerous other aspects are provided.
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公开(公告)号:US20210045054A1
公开(公告)日:2021-02-11
申请号:US16986128
申请日:2020-08-05
Applicant: QUALCOMM Incorporated
Inventor: Le LIU , Alberto RICO ALVARINO , Peter GAAL , Wanshi CHEN , Tingfang JI , Hung Dinh LY , Renqiu WANG , Xiaoxia ZHANG , Huilin XU , Linhai HE , Peter Pui Lok ANG , Jing LEI
Abstract: In a legacy gNB (e.g., pre-Rel. 17 gNB), RC UEs with only 1 or 2 receive antennas may have a geographic coverage area for control data and traffic data that is smaller than their geographic coverage area for SSB with respect to certain legacy gNBs. By contrast, at least some new gNBs (e.g., Rel. 17+ gNBs) have the capability to provide uniform geographic coverage for RC UEs with respect to SSB, control data and traffic data. In an aspect of the disclosure, a particular class of UEs (such as RC UEs) is steered towards particular cells (e.g., Rel. 17+ gNBs) via one or more biased class-specific cell selection parameters included in system information from the cells.
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公开(公告)号:US20200304271A1
公开(公告)日:2020-09-24
申请号:US16896150
申请日:2020-06-08
Applicant: QUALCOMM Incorporated
Inventor: Yi HUANG , Renqiu WANG , Hao XU , Seyong PARK
Abstract: Aspects of the disclosure relate to implied and explicit mapping of uplink (UL) resources for acknowledgment communications from a user equipment (UE). In some examples disclosed herein, implied mapping may include indexing of information elements in a downlink (DL) communication. The explicit mapping may include information elements in the DL communication configured to explicitly provide a location of an UL resource. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号:US20200100249A1
公开(公告)日:2020-03-26
申请号:US16688928
申请日:2019-11-19
Applicant: QUALCOMM Incorporated
Inventor: Renqiu WANG , Hao XU , Peter GAAL , Alberto RICO ALVARINO , Xiao Feng WANG , Seyed Ali Akbar FAKOORIAN , Jing LEI
Abstract: NB wireless communication involves numerous challenges. A limited frequency dimension may need to be shared by multiple users. At times, large data transmissions, including multiple TBs of data may be transmitted using NB communication, and it may be important that each TB be successfully received by the users. The apparatus may transmit data comprising a plurality of TBs in a narrow band communications system, including repeating a transmission of the plurality of TBs, using any of a number of repetition patterns. The apparatus may use error correction encoding across multiple TBs. The transmission may be a single cell transmission or a multi-cell transmission.
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公开(公告)号:US20200068558A1
公开(公告)日:2020-02-27
申请号:US16546078
申请日:2019-08-20
Applicant: QUALCOMM Incorporated
Inventor: Wei YANG , Yi HUANG , Wanshi CHEN , Renqiu WANG , Seyong PARK , Gokul SRIDHARAN , Joseph Binamira SORIAGA
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify one or more time slots in which a first communication on a multi-slot physical uplink control channel (PUCCH) overlaps with a second communication on another PUCCH. The UE may transmit, for each time slot of the one or more time slots, the first communication or the second communication based at least in part on a first priority assigned to the multi-slot PUCCH and a second priority assigned to the other PUCCH. Numerous other aspects are provided.
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公开(公告)号:US20190386861A1
公开(公告)日:2019-12-19
申请号:US16552943
申请日:2019-08-27
Applicant: QUALCOMM Incorporated
Inventor: Seyong PARK , Peter GAAL , Yi HUANG , Renqiu WANG , Hao XU , Tao LUO
Abstract: Adjacent channel leakage-power ratio (ACLR) can be reduced at a transmitter of a device. A modulated signal can be mapped into a plurality of tone sets in a frequency domain, wherein the plurality of tone sets include a first, a second, and a third set of tones. The first and the third set of tones can be converted in the frequency domain to a fourth and a fifth set of tones, respectively, in a time domain. A zero padding of one or more symbols associated with the fourth and the fifth set of tones can be performed to output a sixth and a seventh set of tones, respectively. The sixth and the seventh set of tones can be converted to an eighth and a ninth set of tones, respectively, in the frequency domain. The eighth and the ninth set of tones can be processed for transmitting to another wireless device.
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