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公开(公告)号:US20200083992A1
公开(公告)日:2020-03-12
申请号:US16685755
申请日:2019-11-15
Applicant: QUALCOMM Incorporated
Inventor: Kapil BHATTAD , Alberto RICO ALVARINO
Abstract: Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).
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公开(公告)号:US20200037264A1
公开(公告)日:2020-01-30
申请号:US16513356
申请日:2019-07-16
Applicant: QUALCOMM Incorporated
Inventor: Steven Charles CICCARELLI , Vikas MAHAJAN , Tae Min KIM , Supratik BHATTACHARJEE , Chitaranjan PELUR SUKUMAR , Ashok MANTRAVADI , Pooyan AMINI , Alberto RICO ALVARINO , Carl HARDIN
Abstract: Some techniques and apparatuses described herein protect components of a user equipment (UE), such as a low noise amplifier (LNA), from internal interference. For example, the LNA may be disconnected from a receive chain during periods of high internal interference, and may be reconnected to the receive chain during periods of low internal interference. Furthermore, some techniques and apparatuses described herein improve performance by adjusting operations of the UE to account for and/or offset increased internal interference due to a receive chain that does not include a surface acoustic wave (SAW) filter to remove unwanted radio frequency signals. For example, one or more operations of a baseband processor may be modified to account for the increased internal interference. Additionally, or alternatively, reporting of channel state information may be modified to account for increased internal interference of the UE. Additional details are described herein.
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公开(公告)号:US20190386771A1
公开(公告)日:2019-12-19
申请号:US16352708
申请日:2019-03-13
Applicant: QUALCOMM Incorporated
Inventor: Le LIU , Alberto RICO ALVARINO
IPC: H04L1/00
Abstract: A burden may be placed on a UE to measure CSI for combination(s) of transmission modes, and reporting may create an overhead burden. Aspects presented herein enable a UE to measure and report CSI for combinations of transmission modes in a manner that reduces such burdens. A UE receives signaling from a base station for a combination of transmission modes, e.g., comprising at least a first transmission mode and a second transmission mode. Then, the UE measures at least one reference signal for CSI feedback based on the combination of transmission modes. Various examples of measurements of CSI feedback are presented.
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公开(公告)号:US20190386769A1
公开(公告)日:2019-12-19
申请号:US16352688
申请日:2019-03-13
Applicant: QUALCOMM Incorporated
Inventor: Le LIU , Alberto RICO ALVARINO
IPC: H04L1/00 , H04B7/0456 , H04B7/06 , H04W72/04 , H04L5/00
Abstract: A method, apparatus, and computer-readable medium are presented that enables dynamic switching of transmission modes by a UE. A UE may be configured with a transmission mode. However, the configured transmission mode might not meet the needs of changing network conditions. Aspects presented herein enable a base station to assist a UE in switching between transmission modes. The base station may signal a combination of transmission modes to the UE, e.g., including at least a first transmission mode and a second transmission mode. The UE may then monitor for one or more DCI formats in order to determine whether to switch among transmission modes from the indicated combination of transmission modes
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公开(公告)号:US20190279515A9
公开(公告)日:2019-09-12
申请号:US16049772
申请日:2018-07-30
Applicant: QUALCOMM Incorporated
Inventor: Aleksandar DAMNJANOVIC , Juan MONTOJO , Yongbin WEI , Peter GAAL , Alberto RICO ALVARINO , Edward TEAGUE
Abstract: The disclosure relates to drone user equipment (UE) indications that may be conveyed to a wireless network. In particular, a UE that has flight capabilities (i.e., capabilities to operate as an unmanned aircraft system) and optional further capabilities to report a current height level may indicate such capabilities to the wireless network. As such, the wireless network may differentiate the drone UE from other UEs that only operate on the ground. Furthermore, the optional current height level may enable the wireless network to differentiate among drone UEs operating at different heights and/or from other UEs that are operating on the ground. The wireless network may further use the information indicating the flight capabilities either alone or in combination with the optional height information to configure power control parameters, manage interference, provide mobility management functions, generate neighbor lists, control beamforming, or implement a radio resource configuration or management procedure.
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公开(公告)号:US20190268864A1
公开(公告)日:2019-08-29
申请号:US16405759
申请日:2019-05-07
Applicant: QUALCOMM Incorporated
Inventor: Shimman Arvind PATEL , Yongbin WEI , Peter GAAL , Alberto RICO ALVARINO , Gordon WALKER , Wanshi CHEN , Aleksandar DAMNJANOVIC , Juan MONTOJO
Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, to synchronization for standalone long term evolution (LTE) broadcast. In one aspect, a method is provided which may be performed by a wireless device such as a base station (BS). The method generally includes providing unicast coverage to one or more user equipments (UEs) in a unicast coverage area within a larger coverage area, transmitting unicast data in one or more subframes, and transmitting synchronization signals within one or more of the broadcast subframes, wherein the broadcast signals are transmitted as single frequency network (SFN) transmissions synchronized with transmissions from one or more other base stations providing unicast coverage within the larger coverage area.
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87.
公开(公告)号:US20190222457A1
公开(公告)日:2019-07-18
申请号:US16224227
申请日:2018-12-18
Applicant: QUALCOMM Incorporated
Inventor: Chao WEI , Xiao Feng WANG , Alberto RICO ALVARINO , Le LIU , Wanshi CHEN
CPC classification number: H04L27/2649 , H04B7/0456 , H04L5/0007 , H04L27/2607 , H04L27/2613 , H04L27/2614 , H04W72/0446
Abstract: Methods, apparatuses, and computer program products for wireless communication are provided. A user equipment (UE) may be configured to determine a phase rotation for a symbol based at least in part on a tone index. The UE may be configured to apply the phase rotation to the received symbol, and transmit the uplink symbol. Numerous other aspects are provided.
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公开(公告)号:US20190159257A1
公开(公告)日:2019-05-23
申请号:US16113476
申请日:2018-08-27
Applicant: QUALCOMM Incorporated
Inventor: Alberto RICO ALVARINO , Umesh PHUYAL , Le LIU , Xiao Feng WANG , Mungal Singh DHANDA
Abstract: Various features presented herein facilitate early data transmission (EDT) in eMTC and NB-IoT. In certain aspects, a UE (e.g., an eMTC and/or NB-IoT type device), may receive an indication in a SIB from a base station that may enable EDT by the UE. The UE may transmit a random access request based on the SIB. The UE may further receive an MCS index in an RAR, and transmit a connection request (e.g., Msg3) to the base station based on the MCS index and the indication in the SIB. Some aspects described herein relate to an improved rate matching technique. In certain aspects, a UE may be configured to transmit a connection request message to a base station based on at least one of an increased number of RVs than a number of RVs for other transmissions from the UE or rate matching performed across more than one subframe.
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公开(公告)号:US20190053042A1
公开(公告)日:2019-02-14
申请号:US16058915
申请日:2018-08-08
Applicant: QUALCOMM Incorporated
Inventor: Umesh PHUYAL , Alberto RICO ALVARINO , Nitin PANT , Mungal Singh DHANDA
Abstract: In an example, a method of communication of a UE may include establishing, by the UE, a connection with a base station. The method may include sending, by the UE to the base station, UE capability information in response to a trigger. The UE capability information may be based on whether one or more capabilities of the UE differs or is the same between a first coverage mode and a second coverage mode. In another example, a method of communication of a UE may include establishing, by the UE, a connection with a base station. The method may include sending, to the base station, first UE capability information in response to a first trigger. The method may include sending, by the UE to the base station, second UE capability information in response to a second trigger. The second UE capability information may be different from the first UE capability information.
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公开(公告)号:US20190052328A1
公开(公告)日:2019-02-14
申请号:US16058879
申请日:2018-08-08
Applicant: QUALCOMM Incorporated
Inventor: Prashanth AKULA , Alberto RICO ALVARINO , Aamod Dinkar KHANDEKAR , Helena Deirdre O'SHEA , Supratik BHATTACHARJEE
IPC: H04B7/06
Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to improving performance for sounding reference signal (SRS) antenna switching in carrier aggregation (CA). A method is provided, that may be performed by a user equipment (UE) for wireless communications. The method includes determining one or more band combinations that share an antenna switch and sending a list of one or more bands in the one or more band combinations to a base station (BS). The BS receives the list and schedules the UE based on the received list.
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