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公开(公告)号：US11197317B2
公开(公告)日：2021-12-07
申请号：US14971082
申请日：2015-12-16
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Srinivas Yerramalli , Tao Luo , Peter Gaal , Hao Xu
Abstract: Techniques are described for wireless communication. A first method includes monitoring, by a first wireless device, at least one predetermined symbol period of a subframe for an indication that a second wireless device has obtained access to a shared radio frequency spectrum; determining a starting symbol for a transmission by the second wireless device over the shared radio frequency spectrum based on detecting the indication; and receiving the transmission by the second wireless device over the shared radio frequency spectrum based on the determined starting symbol.
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公开(公告)号：US11197139B2
公开(公告)日：2021-12-07
申请号：US15990471
申请日：2018-05-25
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Wanshi Chen , Hao Xu
Abstract: Design of search spaces and grants in enhanced machine-type communication (eMTC) is discussed in which the search space for common control information is determined based on the search space for non-common control information. In addition, the monitoring of search spaces by mobile devices is also discussed. Additionally, communication schemes between base stations and mobile devices in which information is provided in multiple transmission modes is also discussed. Other aspects discuss schemes for the transmission of control information.
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公开(公告)号：US11196514B2
公开(公告)日：2021-12-07
申请号：US16535986
申请日：2019-08-08
Applicant: QUALCOMM INCORPORATED
Inventor： Wei Yang , Wanshi Chen , Yi Huang , Heechoon Lee , Tingfang Ji , Peter Gaal , Jing Jiang
Abstract: Wireless communications systems and methods related to hybrid automatic repeat request (HARQ) history feedbacks are provided. A user equipment (UE) receives one or more data blocks of a plurality of data blocks, each of the one or more data blocks received in one of a plurality of transmission occasions. The UE transmits an individual feedback for each of the one or more data blocks indicating whether the data block is received successfully. The UE transmits a feedback history report for one or more transmission occasions of the plurality of transmission occasions.
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公开(公告)号：US11191040B2
公开(公告)日：2021-11-30
申请号：US16183668
申请日：2018-11-07
Applicant: QUALCOMM Incorporated
Inventor： Shimman Arvind Patel , Wanshi Chen , Peter Gaal , Hao Xu , Michael Mao Wang
IPC: H04W4/00 , H04W52/34 , H04W52/36 , H04W72/04 , H04W52/14 , H04W52/16 , H04W28/06 , H04L5/00 , H04W52/24 , H04L5/14
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine separate uplink (UL) power limitations for multiple transmission time interval (TTI) durations based on distinct power control parameters. In some cases, an adjustment factor or a power backoff may be applied to communications using one TTI duration to ensure that total transmit power does not exceed a threshold. The UE and the serving base station may also identify one or more demodulation reference signal (DMRS) windows. UL data transmissions may be demodulated based on a DMRS sent during the same window. Transmit power control (TPC) commands may be applied at the beginning of each window. However, if an UL transmission is scheduled at the beginning of the window, the UE may wait until a DMRS transmission or until no more transmissions are scheduled for the window before applying the TPC adjustment.
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公开(公告)号：US11172485B2
公开(公告)日：2021-11-09
申请号：US16518317
申请日：2019-07-22
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Wanshi Chen , Heechoon Lee , Jing Sun , Xiaoxia Zhang
Abstract: Methods, systems, and devices for wireless communications are described. A transmission reception point (TRP) may determine a configuration for downlink transmission of group-common control information associated with a plurality of TRPs. The TRP may identify a set of downlink resources allocated for transmission of the group-common control information. A user equipment (UE) may receive the configuration from at least one TRP of the plurality of TRPs. The UE may monitor downlink resources for reception of the group-common information based on the configuration. The TRP may transmit, and the UE may receive, the group-common control information over the downlink resources. The group-common control information may indicate communication parameters for communications between the UE and at least one TRP.
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Patent Agency Ranking
公开(公告)号：US11172483B2
公开(公告)日：2021-11-09
申请号：US16908129
申请日：2020-06-22
Applicant: QUALCOMM Incorporated
Inventor： Peter Gaal , Haitong Sun , Heechoon Lee , Wanshi Chen , Hung Ly , Joseph Binamira Soriaga , Yeliz Tokgoz
Abstract: Aspects of the present disclosure describe determining an uplink channel raster for determining frequency location of an uplink channel over which to transmit uplink communications to a base station. Uplink communications can be transmitted to the base station over the uplink channel. The uplink channel raster can be shifted, in frequency, with respect to a legacy uplink channel raster of a legacy communication technology to facilitate coexistence, in an uplink carrier, of the uplink channel and one or more uplink channels of the legacy communication technology.
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公开(公告)号：US11172430B2
公开(公告)日：2021-11-09
申请号：US16244857
申请日：2019-01-10
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Yi Huang , Wanshi Chen , Peter Gaal , John Edward Smee , Wei Yang
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a resource allocation, from a resource set, for a response message using a resource allocation selection procedure. In some aspects, the user equipment may transmit the response message using the resource allocation and based at least in part on determining the resource allocation. In some aspects, the user equipment may determine, using an implicit resource mapping procedure and before a radio resource control connection establishment, a resource allocation for a redundancy scheme response message based at least in part on a remaining minimum system information (RMSI) value. Numerous other aspects are provided.
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公开(公告)号：US20210337539A1
公开(公告)日：2021-10-28
申请号：US17235102
申请日：2021-04-20
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Yi Huang , Wanshi Chen , Hwan Joon Kwon
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may determine to change a first slot format used when operating in a half-duplex mode based on a traffic pattern or a channel quality, or both, and may transmit a request to change the slot format to a base station. The request may include information relating to a slot format based on the traffic pattern or the channel quality, or both, such as an explicit indication of a slot format or a request for a different resource distribution between uplink symbols, downlink symbols, or flexible symbols, or any combination thereof. The base station may receive the request to change the slot format and may transmit an indication of a second slot format to the UE based on the request. The base station and the UE may communicate using the second slot format.
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公开(公告)号：US11160075B2
公开(公告)日：2021-10-26
申请号：US16870479
申请日：2020-05-08
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Wanshi Chen , Peter Gaal , Tingfang Ji
Abstract: The present application relates to slot format indicator signaling in wireless communication systems. For example, a network entity may configure a slot format to include one or more symbol partitions and a transmission assignment for each of the one or more symbol partitions, and communicate with to at least one UE according to the configured slot format. In another example, a UE may configure at least one slot format according to at least one of a semi-static configuration via a broadcast or unicast transmission, or a dynamic configuration via a group common physical downlink control channel (GC-PDCCH), and communicate with the network entity according to the slot format.
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公开(公告)号：US11160074B2
公开(公告)日：2021-10-26
申请号：US16710892
申请日：2019-12-11
Applicant: QUALCOMM Incorporated
Inventor： Wanshi Chen , Seyekianoush Hosseini , Xipeng Zhu
Abstract: Described techniques provide for low latency transmission time interval (TTI) transmissions that may have reduced likelihood of experiencing interference from one or more neighboring transmitters. A base station may configure two or more sets of resources for two or more sets of wireless transmissions, in which low latency transmissions may be transmitted in a set of wireless transmissions using all or a portion of one of the sets of resources. The set of resources available for the low latency transmissions may be associated with a set of power parameters that provide reduced transmission powers relative to one or more of the other sets of resources. The two or more sets of resources may include one or more sub-bands of available frequency resources, one or more subsets of time resources, or combinations thereof. In some cases, neighboring base stations may coordinate sets of resources that have reduced power parameters.
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