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公开(公告)号:US20130243039A1
公开(公告)日:2013-09-19
申请号:US13886912
申请日:2013-05-03
Applicant: QUALCOMM INCORPORATED
Inventor: Aamod Khandekar , Alexei Gorokhov , Mohammad J. Borran , Rajat Prakash
IPC: H04B1/7156
CPC classification number: H04B1/7156 , H04J13/10 , H04L27/261 , H04L27/2613
Abstract: Techniques for transmitting pilot and traffic data are described. In one aspect, a terminal may scramble its pilot with a scrambling sequence generated based on a set of static and dynamic parameters. The static parameter(s) have fixed value for an entire communication session for the terminal The dynamic parameter(s) have variable value during the communication session. The terminal may generate a scrambling sequence by hashing the set of parameters to obtain a seed and initializing a pseudo-random number (PN) generator with the seed. The terminal may then generate the pilot based on the scrambling sequence. In another aspect, the terminal may use different scrambling sequences for pilot and traffic data. A first scrambling sequence may be generated based on a first set of parameters and used to generate the pilot. A second scrambling sequence may be generated based on a second set of parameters and used to scramble traffic data.
Abstract translation: 描述用于发送导频和业务数据的技术。 在一个方面,终端可以使用基于一组静态和动态参数产生的加扰序列来加扰其导频。 静态参数对于终端的整个通信会话具有固定值。在通信会话期间,动态参数具有变量值。 终端可以通过对参数集进行散列来产生种子并通过种子初始化伪随机数(PN)生成器来产生加扰序列。 然后终端可以基于加扰序列生成导频。 在另一方面,终端可以对导频和业务数据使用不同的加扰序列。 可以基于第一组参数生成第一加扰序列,并且用于产生导频。 可以基于第二组参数生成第二加扰序列,并用于加扰业务数据。
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公开(公告)号:US12279206B2
公开(公告)日:2025-04-15
申请号:US16726149
申请日:2019-12-23
Applicant: QUALCOMM Incorporated
Inventor: Peter Pui Lok Ang , Tingfang Ji , Wanshi Chen , Tao Luo , Alexei Yurievitch Gorokhov , Aamod Khandekar , Jafar Mohseni , Wooseok Nam , Alexandros Manolakos , Heechoon Lee , Huilin Xu
Abstract: Apparatus, methods, and computer-readable media for providing improved power efficiency during DRX wake-up are disclosed. An example method of wireless communication at a UE includes receiving a WUS from a base station while performing a DRX cycle, the WUS indicating data for transmission to the UE. The example method also includes at least one receiving a downlink reference signal or transmitting an uplink reference signal based on the WUS and prior to reception of the data, the uplink reference signal transmitted or the downlink reference signal received during an on-duration of the DRX cycle and in response to receiving the WUS. The example method also includes sending a CSI report to the base station based on the WUS and prior to the receiving of the data. The example method also includes receiving the data following the respective receiving or transmitting of the downlink reference signal or uplink reference signal.
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公开(公告)号:US11882554B2
公开(公告)日:2024-01-23
申请号:US16909812
申请日:2020-06-23
Applicant: QUALCOMM Incorporated
Inventor: Kapil Gulati , Aamod Khandekar , Shailesh Patil , Shuanshuan Wu , Tien Viet Nguyen , Sudhir Kumar Baghel , Arjun Bharadwaj
IPC: H04W52/08 , H04W72/044 , H04W72/0446 , H04W72/23 , H04W52/38
CPC classification number: H04W72/0473 , H04W52/08 , H04W52/383 , H04W72/0446 , H04W72/23
Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may determine that the first UE is scheduled to transmit in a first slot and a second slot after the first slot. The first UE may then transmit, to a second UE, a first set of data in the first slot based on determining that the first UE is scheduled to transmit in the first slot and the second slot. In some examples, the first UE may determine whether a power estimation capability of the second UE satisfies a threshold. In some cases, the power estimation capability may be based on a correspondence between transmissions in the first slot and expected transmissions in the second slot. Based on the power estimation capability of the second UE, the first UE transmits data in a symbol reserved for automatic gain control at the second slot.
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公开(公告)号:US20230344484A1
公开(公告)日:2023-10-26
申请号:US18345548
申请日:2023-06-30
Applicant: QUALCOMM Incorporated
Inventor: Arash Ebadi Shahrivar , Peter Pui Lok Ang , Brian Clarke Banister , Yung-Yih Jian , Jianming Zhu , Raghu Narayan Challa , Alexei Yurievitch Gorokhov , Aamod Khandekar , Ruhua He
CPC classification number: H04B7/0623 , H04B7/0632 , H04B7/0802 , H04B7/0608
Abstract: Methods, systems, and devices for wireless communications are described that provide for antenna selection at a user equipment (UE). The UE may have a set of available antennas for uplink and downlink communications, and may select a first subset of antennas for uplink communications and a second subset of antennas for downlink communications. The first subset of antennas may be based on one or more uplink metrics, and the second subset of antennas may be based on the first subset of antennas and one or more downlink channel metrics, traffic amounts, or any combinations thereof.
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公开(公告)号:US11652522B2
公开(公告)日:2023-05-16
申请号:US16058879
申请日:2018-08-08
Applicant: QUALCOMM Incorporated
Inventor: Prashanth Akula , Alberto Rico Alvarino , Aamod Khandekar , Helena Deirdre O'Shea , Supratik Bhattacharjee
CPC classification number: H04B7/061 , H04L5/001 , H04L5/006 , H04L5/0037 , H04L5/0048 , H04L5/0096 , H04W84/042 , H04W88/08
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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公开(公告)号:US11581982B2
公开(公告)日:2023-02-14
申请号:US16863903
申请日:2020-04-30
Applicant: QUALCOMM Incorporated
Inventor: Seyedkianoush Hosseini , Amir Aminzadeh Gohari , Jaeyoung Kwak , Peter Gaal , Aamod Khandekar , Joseph Binamira Soriaga , Tingfang Ji , Wanshi Chen , Enoch Shiao-Kuang Lu , Gabi Sarkis , Chao Jin
IPC: H04L1/18 , H04L1/1812 , H04L1/00 , H04L1/1829
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may interrupt a user equipment (UE) during transport block (TB) encoding. The UE may cancel transmission (e.g., suppress processing) of a TB based on the interruption, such that a first subset of code blocks is encoded and a second subset is unencoded. In some cases, the UE may receive a re-transmission request for a code block including cyclic redundancy check (CRC) bits for the TB, where the CRC bits are not prepared. In one example, the UE may modify the CRC bits (e.g., set them to a common value, drop them, etc.) to reduce processing time. In another example, the base station may request re-transmission of all preempted code blocks, supporting TB CRC calculation. In another example, the base station or UE may extend a processing timeline for the re-transmission to support TB CRC calculation.
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公开(公告)号:US11528105B2
公开(公告)日:2022-12-13
申请号:US17028652
申请日:2020-09-22
Applicant: QUALCOMM Incorporated
Inventor: Huilin Xu , Peter Pui Lok Ang , Aamod Khandekar
Abstract: Certain aspects of the present disclosure provide techniques for supporting control channel monitoring based on sub-carrier spacing (SCS).
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公开(公告)号:US20210385679A1
公开(公告)日:2021-12-09
申请号:US17349005
申请日:2021-06-16
Applicant: QUALCOMM Incorporated
Inventor: Seyedkianoush Hosseini , Seyed Ali Akbar Fakoorian , James Beckman , Aamod Khandekar
Abstract: This disclosure provides systems, methods and apparatus where a user equipment (UE) may indicate different physical downlink control channel (PDCCH) monitoring capabilities (such as UE capabilities in terms of the number of control channel elements (CCEs), blind decodes (BDs), number of downlink control information (DCI) formats, etc.) per monitoring span or slot. For example, a UE may support a different number of CCEs per slot or a different number of DCIs per monitoring span for different service types (such as a different number of CCEs for enhanced mobile broadband (eMBB) and for ultra-reliable low latency communications (URLLC)). A UE may indicate different sets of PDCCH monitoring capabilities (such as sets of PDCCH monitoring capabilities for different service types, monitoring spans, slots, etc.). A base station may receive the indication of UE PDCCH monitoring capability information and may configure the UE with one or more monitoring occasions accordingly.
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29.
公开(公告)号:US11166238B2
公开(公告)日:2021-11-02
申请号:US16544742
申请日:2019-08-19
Applicant: QUALCOMM Incorporated
Inventor: Jing Jiang , Peter Pui Lok Ang , Ashok Mantravadi , Aamod Khandekar , Krishna Kiran Mukkavilli , Joseph Binamira Soriaga , Naga Bhushan , Yuanning Yu
Abstract: In an aspect, a UE may determine a set of parameters associated with each of a plurality of different operation modes supported by the UE and transmit UE capability information including the set of parameters to a base station, where at least one operation mode comprises a power efficient mode. The UE may receive configuration information based on the UE capability information including an indication of an operation mode of the plurality of different operation modes. A base station may receive UE capability information including a set of parameters associated with each of a plurality of different operation modes supported by a UE and determine an operation mode of the plurality of different operation modes for the UE based on the UE capability information. The base station may transmit configuration information including an indication of the operation mode of the plurality of different operation modes.
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公开(公告)号:US20210112432A1
公开(公告)日:2021-04-15
申请号:US17069605
申请日:2020-10-13
Applicant: QUALCOMM Incorporated
Inventor: Wei Yang , Peter Gaal , Seyedkianoush Hosseini , Seyed Ali Akbar Fakoorian , Wanshi Chen , Aamod Khandekar
Abstract: Methods, systems, and devices for wireless communications are described. A UE may identify a capability for downlink control channel monitoring and uplink cancellation indication monitoring. The UE may transmit, to a base station, an indication of the identified uplink cancellation indication monitoring capability. The base station may receive the indication from the UE, and may configure monitoring occasions in a slot based on the received uplink cancellation indication monitoring capability. The base station may transmit via radio resource control signaling, and the UE may receive, a configuration which configures a number of monitoring occasions based on the uplink cancellation indication monitoring capability. The UE may then monitor the configured monitoring occasions according to the identified capability.
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