-
公开(公告)号:US20200252974A1
公开(公告)日:2020-08-06
申请号:US16775056
申请日:2020-01-28
Applicant: QUALCOMM Incorporated
Inventor: Sony AKKARAKARAN , Xiaoxia ZHANG , Jing SUN , Tao LUO , Muhammad Nazmul ISLAM
Abstract: Certain aspects of the disclosure provide techniques for random access channel (RACH) power control, including for message (MSGA) transmission by a user equipment (UE) for two-step RACH procedure. Certain aspects provide a method for wireless communication generally including determining a transmit power for transmitting a first message to a base station (BS) as part of a two-step RACH procedure, the first message comprising a first part and a second part. Determining the transmit power comprises determining a first transmit power for transmitting the first part based on a first function having parameters including a power ramping counter and a power ramping step. Determining the transmit power further comprises determining a second transmit power for transmitting the second part based on a second function having parameters including the power ramping counter and the power ramping step. The method further includes incrementing the power ramping counter based on transmitting the first message.
-
公开(公告)号:US20200245304A1
公开(公告)日:2020-07-30
申请号:US16748562
申请日:2020-01-21
Applicant: QUALCOMM Incorporated
Inventor: Wooseok NAM , Tao LUO , Peter Pui Lok ANG , Heechoon LEE , Olufunmilola Omolade AWONIYI-OTERI
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a second communication, of a bandwidth part (BWP) selection process, that indicates a subset of BWPs, of a set of BWPs, to be selected as a set of active BWPs, wherein the set of BWPs is configured to the UE for a component carrier via radio resource control signaling as a first communication of the BWP selection process, wherein the subset of BWPs includes one or more BWPs of the set of BWPs. In some aspects, the UE may select the subset of BWPs as the set of active BWPs based at least in part on receiving the second communication, wherein a particular BWP, of the subset of BWPs, is to be used for a post-BWP selection process communication. Numerous other aspects are provided.
-
513.
公开(公告)号:US20200236704A1
公开(公告)日:2020-07-23
申请号:US16722485
申请日:2019-12-20
Applicant: QUALCOMM Incorporated
Inventor: Vinay CHANDE , Tao LUO , Xiaoxia ZHANG , Makesh Pravin JOHN WILSON , Arumugam CHENDAMARAI KANNAN
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, for a first message of a random access channel (RACH) procedure and based at least in part on whether the UE has beam correspondence, at least one of: a set of time-frequency resources for the first message of the RACH procedure, or a preamble for the first message of the RACH procedure. In some aspects, the UE may transmit, to a base station and based at least in part on selecting the at least one of the set of time-frequency resources or the preamble, the first message of the RACH procedure. Numerous other aspects are provided.
-
公开(公告)号:US20200221309A1
公开(公告)日:2020-07-09
申请号:US16735504
申请日:2020-01-06
Applicant: QUALCOMM Incorporated
Inventor: Ozcan OZTURK , Aleksandar DAMNJANOVIC , Andrei Dragos RADULESCU , Xiaoxia ZHANG , Tao LUO , Jing SUN
IPC: H04W16/14 , H04W74/08 , H04W76/27 , H04W80/02 , H04L25/02 , H04L5/00 , H04W24/10 , H04B17/318 , H04B17/336
Abstract: A UE determines to send a transmission to a first base station on a first unlicensed frequency channel. The UE determines, for one or more attempts of a listen before talk (LBT) protocol, whether each attempt is a failed attempt or a successful attempt. The UE determines that the first unlicensed frequency channel is one of unavailable based on the LBT protocol failing due to a number of failed attempts exceeding for a first threshold number of failed attempts or a duration of failed attempts exceeding a first threshold duration, or available based on the LBT protocol being successful. The UE sends a report to the first base station indicating whether the first unlicensed frequency channel is unavailable or available through a unicast radio resource control (RRC) message or a medium access control (MAC) control element (CE).
-
公开(公告)号:US20200213968A1
公开(公告)日:2020-07-02
申请号:US16814971
申请日:2020-03-10
Applicant: QUALCOMM Incorporated
Inventor: Sony AKKARAKARAN , Tao LUO , Alexandros MANOLAKOS , Guttorm Ringstad OPSHAUG , Joseph Binamira SORIAGA , Naga BHUSHAN
Abstract: Disclosed are techniques for utilizing synchronization signal blocks for positioning operations. In an aspect, a transmission point configures a set of synchronization signal blocks to be used as positioning measurement signals, each of the plurality of synchronization signal blocks comprising a primary synchronization signal, a secondary synchronization signal, and one or more physical broadcast channel signals, and transmits the set of synchronization signal blocks on a wireless downlink channel to enable a user device to perform a positioning measurement of at least one of the set of synchronization signal blocks. In an aspect, the user device receives, from the transmission point, the plurality of synchronization signal blocks on the wireless downlink channel, receives, from the transmission point, an indication of the set of synchronization signal blocks to be used as positioning measurement signals, and performs a positioning measurement of at least one of the set of synchronization signal blocks.
-
公开(公告)号:US20200187239A1
公开(公告)日:2020-06-11
申请号:US16703604
申请日:2019-12-04
Applicant: QUALCOMM Incorporated
Inventor: Mostafa KHOSHNEVISAN , Xiaoxia ZHANG , Jing SUN , Tao LUO , Peter GAAL
Abstract: A method of scheduling uplink and downlink packet transmission in a mobile communication system is disclosed. The method of scheduling includes receiving (or transmitting if from a BS perspective) a first scheduling indication and receiving (or transmitting if from a BS perspective) a second scheduling indication, the first scheduling indication and the second scheduling indication comprise scheduling information for a UE.
-
517.
公开(公告)号:US20200154319A1
公开(公告)日:2020-05-14
申请号:US16739381
申请日:2020-01-10
Applicant: QUALCOMM Incorporated
Inventor: Alexandros MANOLAKOS , Wanshi CHEN , Tao LUO , Peter GAAL
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a method for managing SRS transmission in a bandwidth part may include identifying one or more bandwidth parts of a component carrier of a cell to be allocated to a user equipment (UE). The method may also include identifying a sounding reference signal (SRS) bandwidth configuration for each of the one or more bandwidth parts. The method may further include transmitting the SRS bandwidth configuration to the UE. Numerous other aspects are provided.
-
公开(公告)号:US20200150736A1
公开(公告)日:2020-05-14
申请号:US16673630
申请日:2019-11-04
Applicant: QUALCOMM Incorporated
Inventor: Wooseok NAM , Tao LUO , Wanshi CHEN , Peter Pui Lok ANG , Heechoon LEE , Juan MONTOJO , Olufunmilola Omolade AWONIYI-OTERI , Hung Dinh LY
IPC: G06F1/3209 , G06F1/3234
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more power saving signals based at least in part on a selected power saving signal configuration of a set of power saving signal configurations, wherein the UE stores information identifying the set of power saving signal configurations; and perform a power saving operation based at least in part on the one or more power saving signals. In some aspects, a base station may determine one or more power saving signal configurations, of a set of power saving signal configurations, to be used to transmit one or more power saving signals; and transmit the one or more power saving signals using the one or more power saving signal configurations. Numerous other aspects are provided.
-
公开(公告)号:US20200084674A1
公开(公告)日:2020-03-12
申请号:US16681219
申请日:2019-11-12
Applicant: QUALCOMM Incorporated
Inventor: Keiichi KUBOTA , Tingfang JI , Tao LUO , Gavin Bernard HORN , John Edward SMEE , Ravi AGARWAL , Joseph Binamira SORIAGA , Saurabha Rangrao TAVILDAR
Abstract: Aspects of the present disclosure provide methods and apparatus for beam selection in uplink-based and downlink-based mobility scenarios, for example, for new radio (NR) systems which can improve handover reliability, reduce handover frequency, and improve power efficiency. Certain aspects provide a method for wireless communications by a user equipment (UE). The method generally includes transmitting an uplink reference signal with an indication of a preferred downlink beam and receiving a downlink transmission based, at least in part, on the uplink reference signal.
-
公开(公告)号:US20200059879A1
公开(公告)日:2020-02-20
申请号:US16538403
申请日:2019-08-12
Applicant: QUALCOMM Incorporated
Inventor: Wooseok NAM , Tao LUO , Junyi LI
Abstract: Aspects of the present disclosure provide techniques for dynamically adjusting the access link timing alignment at the integrated access and backhaul (IAB) node. Specifically, features of the present disclosure provide techniques for signaling to one or more child nodes the timing advance and timing offset values associated with each operational mode of the IAB node that may impact the access link timing for the child node (for uplink and/or downlink transmissions). Additionally or alternatively, aspects of the present disclosure identify whether a gap period may be included in order to ensure that the child node has sufficient time to transition between states during the transition period (e.g., from downlink to uplink) when the IAB node dynamically adjusts the access link timing.
-
-
-
-
-
-
-
-
-