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公开(公告)号：US09967729B2
公开(公告)日：2018-05-08
申请号：US15264236
申请日：2016-09-13
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Siddhartha Mallik , Ravi Palanki , Naga Bhushan , Tao Luo , Durga Prasad Malladi
CPC classification number: H04W8/005 , H04L5/0053 , H04L67/104 , H04W4/02 , H04W56/002 , H04W56/0025 , H04W72/00 , H04W72/0453 , H04W76/10 , H04W92/18
Abstract: Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.
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公开(公告)号：US20180077725A1
公开(公告)日：2018-03-15
申请号：US15677692
申请日：2017-08-15
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Taesang Yoo , Xiaoxia Zhang , Siddhartha Mallik
Abstract: Aspects of the disclosure relate to reserving resources in wireless communication systems, such as those employing listen before talk (LBT). The disclosed methods and apparatus employ a channel reservation preamble used in a sequence of burst or data packet transmissions. The preamble including a channel reservation indication is included in a first data packet transmitted from a first network node. The channel reservation indication is configured to indicate a transmission time reservation of channel resources covering the data packet containing the preamble, a second data packet to be received from a second network node responsive to the first data packet, and at least a portion of a third data packet transmitted from the first network node subsequent to the transmission of the second data packet. In this manner, over-reservation of channel resources is mitigated. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US20180054830A1
公开(公告)日：2018-02-22
申请号：US15659604
申请日：2017-07-25
Applicant: QUALCOMM Incorporated
Inventor： Tao Luo , Juan Montojo , Tamer Kadous , Junyi Li , Xiaoxia Zhang , Jing Sun , Taesang Yoo , Siddhartha Mallik
Abstract: Various aspects of the disclosure relate to event triggers for independent links. For example, an event trigger may be based on measurements from multiple links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, an event trigger may be based on aggregated measurements from multiple links.
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公开(公告)号：US20180035463A1
公开(公告)日：2018-02-01
申请号：US15649074
申请日：2017-07-13
Applicant: QUALCOMM Incorporated
Inventor： Siddhartha Mallik , Taesang Yoo , Jing Sun , Anastasios Stamoulis , Aleksandar Damnjanovic , Juan Montojo
CPC classification number: H04W74/0816 , H04W16/14 , H04W72/0453 , H04W88/06
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) or base station communicating in an unlicensed radio frequency spectrum band may transmit a signal (e.g., a request-to-send (RTS) or clear-to-send (CTS) signal) in a licensed radio frequency spectrum band to decrease the likelihood that neighboring devices will transmit interfering communications. Specific resources may be designated in the licensed radio frequency spectrum band for transmitting these signals, and these resources may be associated with specific unlicensed channels. Signaling in the licensed radio frequency spectrum band may also carry an indication of the unlicensed channel being used or other information relevant to the unlicensed communication. The RTS/CTS signaling in licensed radio frequency spectrum band may be transmitted during a downlink transmit opportunity or an uplink transmit opportunity, or both. Different energy detection thresholds may apply to RTS/CTS signals in licensed and unlicensed spectrum.
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公开(公告)号：US20170303236A1
公开(公告)日：2017-10-19
申请号：US15489599
申请日：2017-04-17
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Juan Montojo , Taesang Yoo , Siddhartha Mallik , Andrei Radulescu , Chirag Patel , Chengjin Zhang
CPC classification number: H04W68/02 , H04W16/14 , H04W68/005 , H04W72/005 , H04W72/0453 , H04W74/0808 , H04W76/28 , H04W88/02 , H04W88/08
Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a configuration for enhanced paging to a UE being served by a cell over a shared frequency band. The enhanced paging may include multiple paging intervals for each paging cycle. The UE may enable reception for a paging interval and determine whether the UE receives a downlink transmission. The UE may lengthen a paging interval or enable reception during a second paging interval based in part on determining whether the UE receives a downlink transmission. In some examples, the UE may receive a paging queue status indication indicating that paging information will be transmitted during a paging interval or a later interval, or indicating that no paging information is present at a serving cell.
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Patent Agency Ranking
公开(公告)号：US20170223739A1
公开(公告)日：2017-08-03
申请号：US15403862
申请日：2017-01-11
Applicant: QUALCOMM Incorporated
Inventor： Siddhartha Mallik , Jing Sun , Xiaoxia Zhang , Taesang Yoo , Yongbin Wei , Onkar Jayant Dabeer
CPC classification number: H04W56/001 , H04W16/14 , H04W74/0808 , H04W74/0891
Abstract: Techniques for synchronization across transmitting nodes of a same public land mobile network (PLMN) operator using a shared radio frequency spectrum band may include initiating, at a first wireless node, a listen-before-talk (LBT) procedure for access to the shared radio frequency spectrum band, and identifying that a second wireless node associated with a same PLMN operator as the first wireless node has won contention for the shared radio frequency spectrum band. The first wireless node may discontinue the LBT procedure and initiate an auxiliary transmission using the shared radio frequency spectrum band concurrently with a primary transmission of the second wireless node.
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公开(公告)号：US20170215200A1
公开(公告)日：2017-07-27
申请号：US15154344
申请日：2016-05-13
Applicant: QUALCOMM Incorporated
Inventor： Siddhartha Mallik , Aleksandar Damnjanovic , Jing Sun , Taesang Yoo , Xiaoxia Zhang , Durga Prasad Malladi
CPC classification number: H04W72/1268 , H04B7/0626 , H04L5/0048 , H04W52/00 , H04W72/0446 , H04W72/0493 , H04W72/082 , H04W72/1273 , H04W74/0808
Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a transmission opportunity duration and an allocation for downlink and uplink transmissions, then broadcast a channel reservation request transmission. The broadcast may be sent using unlicensed radio frequency spectrum over a channel that includes multiple-sub-bands. The channel reservation transmission may include the identified duration, allocation, and a channel state information (CSI) request. User equipments (UEs) may receive the broadcast, and respond with a channel reservation response transmission that includes a CSI report, a transmit identity, or an interference threshold indicator. In some cases, some or all of the UEs may transmit a sounding reference signal (SRS) in response to an SRS request that is broadcast by the base station. The base station may schedule uplink and/or downlink transmissions to at least a subset of the multiple UEs based on the channel reservation response and/or SRS.
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公开(公告)号：US20170094683A1
公开(公告)日：2017-03-30
申请号：US15215422
申请日：2016-07-20
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Taesang Yoo , Siddhartha Mallik
CPC classification number: H04W74/04 , H04L5/00 , H04L5/001 , H04L27/00 , H04L27/0006 , H04W72/0413 , H04W72/1231 , H04W72/14 , H04W74/0808
Abstract: Methods, systems, and devices for wireless communication are described. A wireless communication system may utilize a listen before talk (LBT) procedure prior to transmission. A base station may perform an enhanced clear channel assessment (eCCA) on one channel and a single clear channel assessment (CCA) on another channel. The base station may then send a grant for a user equipment (UE) to transmit on both channels. The UE may receive the grant, and perform a single CCA on the first channel and an eCCA on the second channel. The UE may then transmit uplink information on both the first channel and the second channel. That is, the base station may send an opportunistic grant for transmitting on the second channel even though it may not have passed eCCA at the base station. The UE may then use the channel if it passes an eCCA.
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公开(公告)号：US20170026976A1
公开(公告)日：2017-01-26
申请号：US15175966
申请日：2016-06-07
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Jing Sun , Durga Prasad Malladi , Yongbin Wei , Weiliang Zeng , Siddhartha Mallik , Aleksandar Damnjanovic
CPC classification number: H04W72/082 , H04L1/0009 , H04L1/0057 , H04L67/322 , H04W72/0413 , H04W72/042
Abstract: Methods, systems, and devices for wireless communication using various coding schemes for data transmission are described. A wireless communication system may support multiple coding schemes such as, for example, turbo codes and low density parity check codes. The system may support selection of the coding scheme based on explicit signaling or implicit evaluation of transmission parameters. A transmitting device may select a coding scheme, encode a message using the selected coding scheme, and transmit the encoded message over a wireless connection. The receiving device may receive the encoded message, select the coding scheme, and decode the message using the select coding scheme.
Abstract translation: 描述了使用各种用于数据传输的编码方案的用于无线通信的方法，系统和装置。 无线通信系统可以支持多种编码方案，例如turbo码和低密度奇偶校验码。 该系统可以支持基于显式信令或传输参数的隐含评估来选择编码方案。 发送设备可以选择编码方案，使用所选择的编码方案对消息进行编码，并通过无线连接发送编码的消息。 接收设备可以接收编码消息，选择编码方案，并使用选择编码方案对消息进行解码。
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公开(公告)号：US20160381673A1
公开(公告)日：2016-12-29
申请号：US15182065
申请日：2016-06-14
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Taesang Yoo , Peter Gaal , Yongbin Wei , Durga Prasad Malladi , Siddhartha Mallik
CPC classification number: H04L1/1861 , G06F3/0613 , G06F3/065 , G06F3/067 , H04L1/1822 , H04L1/1887
Abstract: A base station or user equipment (UE) may manage scheduling of code blocks to be transmitted and manage memory interface usage to enhance memory read and write operations and provide for enhanced efficiency for decoding of retransmissions of code blocks. In some aspects, a base station or UE may identify an available throughput, or budget, for performing read and write operations to a memory. The base station or UE may then estimate an amount of read and write operations to be performed during a particular time period. In the event that the amount of read and write operations exceed the budget, scheduling of code blocks to be transmitted may be adjusted, one or more read or write operations may be skipped, or combinations thereof may be employed to achieve the memory read and write budget.
Abstract translation: 基站或用户设备（UE）可以管理要发送的代码块的调度，并且管理存储器接口使用以增强存储器读和写操作，并提供用于解码代码块的重传的增强的效率。 在一些方面，基站或UE可以识别用于对存储器执行读取和写入操作的可用吞吐量或预算。 然后，基站或UE可以估计在特定时间段期间执行的读取和写入操作的量。 在读取和写入操作量超过预算的情况下，可以调整要发送的代码块的调度，可以跳过一个或多个读取或写入操作，或者可以采用它们的组合来实现存储器的读取和写入 预算。
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