-
公开(公告)号：US20190261382A1
公开(公告)日：2019-08-22
申请号：US16276101
申请日：2019-02-14
Applicant: QUALCOMM INCORPORATED
Inventor： Qingjiang Tian , Srinivas Yerramalli , Xiaoxia Zhang , Jing Sun , Chih-Hao Liu
Abstract: Indication of transmission priority class is disclosed for sharing a base station's maximum channel occupancy time (MCOT) for use in autonomous uplink (AUL). Aspects of the disclosure provide for implicitly sharing the MCOT by providing an indication of transmission opportunity (TxOP) length. A serving base station sends an indication of a current TxOP length in control signals to a user equipment (UE). The UE may then infer a set of potential transmission priorities used by the serving base station according to the TxOP length, as TxOP length may relate to the MCOT, which itself may be associated with a particular transmission priority class. The UE may then, conservatively, select the highest transmission priority of the set of potential transmission priorities for autonomously transmitting any uplink data having at least the selected highest transmission priority within configured AUL resource of the current TxOP.
-
公开(公告)号：US20190261326A1
公开(公告)日：2019-08-22
申请号：US16275228
申请日：2019-02-13
Applicant: QUALCOMM Incorporated
Inventor： Huilin Xu , Heechoon Lee , Jing Sun , Alexandre Pierrot
IPC: H04W72/04
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may identify a hash value index associated with searching for a physical downlink control channel. The hash value index may be identified based at least in part on an index of an interval of a plurality of intervals within a periodicity. The user equipment may configure, based at least in part on the hash value index, a hash function associated with determining the hash value. Numerous other aspects are provided.
-
公开(公告)号：US10367566B2
公开(公告)日：2019-07-30
申请号：US15667801
申请日：2017-08-03
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Wanshi Chen , Peter Gaal , Hao Xu
Abstract: Multiple base stations or transmit points (TPs) may use single-user multiple-input multiple-output (SU-MIMO) layer-specific and codeword-specific communication configurations for non-coherent joint transmissions (NCJTs) to a user equipment (UE). Two TPs may be configured for NCJTs to the UE, and one or more of the TPs may transmit a set of communication configurations to the UE. The communication configurations may be transmitted in a single downlink control information (DCI) transmission that configures the UE to receive NCJTs as two codewords in a SU-MIMO transmission. The UE may receive the DCI, receive the multiple NCJTs, and demodulate/decode the NCJT transmissions as multiple codewords in a SU-MIMO transmission. In some cases, the two codewords may be received from two TPs. Alternatively, the two codewords may be received in two spatial layers transmitted from a single TP.
-
公开(公告)号：US20190223215A1
公开(公告)日：2019-07-18
申请号：US16203073
申请日：2018-11-28
Applicant: QUALCOMM Incorporated
Inventor： Qingjiang Tian , Jing Sun , Xiaoxia Zhang , Srinivas Yerramalli , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain access to a shared radio frequency spectrum band for a transmission opportunity. The UE may perform an autonomous uplink transmission over the shared radio frequency spectrum band during a first portion of the transmission opportunity. The UE may transmit a physical layer scheduling request comprising a transmission size parameter for a second portion of the transmission opportunity. The UE may receive an uplink grant for the second portion of the transmission opportunity based at least in part on the scheduling request. The UE may perform a scheduled uplink transmission over the shared radio frequency spectrum band during the second portion of the transmission opportunity according to the uplink grant.
-
公开(公告)号：US20190215859A1
公开(公告)日：2019-07-11
申请号：US16355105
申请日：2019-03-15
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Wanshi Chen , Peter Gaal , Shimman Arvind Patel , Aleksandar Damnjanovic , Hao Xu , Juan Montojo
Abstract: Methods, systems, and devices for wireless communication are described. Different transmission time interval (TTI) durations may be supported and configured to coexist with one another. A set of TTIs with a relatively short duration may overlap in time with longer duration TTIs. Boundaries of TTIs with a relatively short duration may be configured to align with boundaries of relatively longer duration TTIs. For example, TTIs that are a Long Term Evolution (LTE) subframe, an LTE slot, and a duration of two LTE symbol periods may be supported. Two-symbol period TTIs may align with or be embedded within slot-duration TTIs, which, in turn, may align with or be embedded within a subframe. In some examples, one or more symbol periods of a subframe may be designated as a gap between two-symbol TTIs within the subframe, or such symbols may be merged with a two-symbol TTI within the subframe.
-
Patent Agency Ranking
公开(公告)号：US10341884B2
公开(公告)日：2019-07-02
申请号：US15182273
申请日：2016-06-14
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Xiaoxia Zhang , Taesang Yoo , Siddhartha Mallik
IPC: H04W24/02 , H04L27/26 , H04W28/04 , H04W24/08 , H04W74/06 , H04W28/02 , H04W74/00 , H04B7/06 , H04W74/08 , H04W72/08
Abstract: Channel clearance using a shared radio frequency spectrum band may be performed for both a base station and a user equipment (UE). A base station may perform a listen before talk (LBT) procedure and verify one or more channels in a shared radio frequency spectrum band are available for transmissions and, if the LBT procedure is successful, transmit a pre-grant transmission to one or more UEs. The UEs may perform an LBT procedure for channel(s) indicated in the pre-grant transmission. If the UE LBT procedure passes, the UE may transmit a channel clearance signal, and may transmit a feedback communication responsive to the pre-grant transmission. The feedback communication may indicate, for example, the pre-grant transmission was received and which of the one or more channels are available based on the LBT procedure. The base station may receive the feedback communication and initiate transmissions to the UE.
-
公开(公告)号：US10334577B2
公开(公告)日：2019-06-25
申请号：US15443933
申请日：2017-02-27
Applicant: QUALCOMM Incorporated
Inventor： Shimman Arvind Patel , Wanshi Chen , Seyedkianoush Hosseini , Jing Sun , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described. In one example, an indication in a first control message in a control region of a first transmission time interval (TTI) identifies a data region of the first TTI. A data region of the second TTI may be identified based on a grant of resources received in a second control message of a second TTI, where the data region of the first TTI and the control region of the second TTI are frequency division multiplexed with the data region of the second TTI. Other examples include a downlink grant at the beginning of a control region and uplink grants at the end of the control region. In other examples, a downlink grant for a user equipment (UE) may include an indication of resources allocated to the UE in that resource block and a second resource block.
-
公开(公告)号：US20190191360A1
公开(公告)日：2019-06-20
申请号：US16215330
申请日：2018-12-10
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Heechoon Lee , Peter Gaal
CPC classification number: H04W48/12 , H04L5/0051
Abstract: Methods, systems, and devices for wireless communications are described. A number of blind decodings of a search space set for control information are defined. A search space of the search space set includes a subset of blind decodings. A reduction factor is determined. The reduction factor is applied to the subset of blind decodings to obtain a reduced subset of blind decodings for the search space. A reduced number of blind decodings of the search space set is identified based at least in part on the reduced subset of blind decodings for the search space. The control information is transmitted in a decoding candidate of the reduced number of blind decodings of the search space.
-
399.发明申请公开(公告)号：US20190190668A1
公开(公告)日：2019-06-20
申请号：US16218345
申请日：2018-12-12
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Jing Sun , Tamer Kadous , Xiaoxia Zhang
CPC classification number: H04L5/0046 , H04L1/0017 , H04L5/0007 , H04L5/0035 , H04L27/264 , H04L27/2646 , H04L27/2692 , H04W72/1278 , H04W72/1284 , H04W74/0808 , H04W74/0833 , H04W74/085
Abstract: Wireless communications systems and methods related to performing subband-based random access and/or subband-based scheduling request in a network are provided. A first wireless communication device receives a communication configuration indicating one or more subbands for transmitting a signal including at least one of a random access preamble sequence or a scheduling request. The first wireless communication device performs a clear channel assessment (CCA) on each subband of the one or more subbands. The first wireless communication device transmits the signal using at least one subband of the one or more subbands based on a result of the CCA.
-
公开(公告)号：US10314037B2
公开(公告)日：2019-06-04
申请号：US15642104
申请日：2017-07-05
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Seyedkianoush Hosseini , Peter Gaal , Srinivas Yerramalli , Hao Xu , Jing Sun , Shimman Arvind Patel , Aamod Khandekar
Abstract: Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.
-
-
-
-
-
-
-
-
-
Search Results
2404
records
(took 0.067 seconds)
