公开(公告)号：US20200267770A1

公开(公告)日：2020-08-20

申请号：US16634563

申请日：2018-07-10

Applicant: Muhammad Nazmul ISLAM ,  Tao LUO ,  Sumeeth NAGARAJA ,  Peng CHENG ,  Sundar SUBRAMANIAN ,  Keiichi KUBOTA ,  Qualcomm Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Tao LUO ,  Sumeeth NAGARAJA ,  Peng CHENG ,  Sundar SUBRAMANIAN ,  Keiichi KUBOTA

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27 ,  H04W36/08

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless systems, a user equipment (UE) may access a network or cell using a random access (RACH) procedure. A base station may allocate dedicated RACH resources and common RACH resources for the UE to transmit a RACH preamble message on and may convey a configuration for the UE. In some cases, the UE may perform multiple transmissions of the RACH preamble message in the dedicated RACH resources, and based on the configuration may determine whether to perform a single or multiple transmissions of the RACH preamble message in the common RACH resources. The UE may transmit the messages using the same or different uplink transmit beams, and the base station may receive the messages using the same or different uplink reception beams. These multiple transmissions may reduce latency and improve reliability of the RACH procedure.

公开(公告)号：US09380620B2

公开(公告)日：2016-06-28

申请号：US13350396

申请日：2012-01-13

Applicant: Siva Theja Maguluri ,  Sundar Subramanian ,  Xinzhou Wu

Inventor： Siva Theja Maguluri ,  Sundar Subramanian ,  Xinzhou Wu

IPC: H04W76/02 ,  H04W84/18

CPC classification number: H04W76/023 ,  H04W76/14 ,  H04W84/18

Abstract: Wireless communications devices with existing peer to peer links transmit, e.g., in accordance with a recurring schedule, quality of service related information corresponding to the existing links. The transmitted quality of service related information is, e.g., information indicating an obtained quality of service for the existing link. In some embodiments, quality of service related information is communicated in one of: a peer discovery signal, a connection ID broadcast signal and a contention resolution signal. A wireless communications device seeking to establish a new peer to peer link receives quality of service related information corresponding to existing links and estimates a quality a service achievable on the new desired potential link based on the received quality of service related information. The wireless communications device decides whether or not to establish the new peer to peer link based on its quality of service estimate.

公开(公告)号：US09113492B2

公开(公告)日：2015-08-18

申请号：US13290312

申请日：2011-11-07

Applicant: Siva Theja Maguluri ,  Xinzhou Wu ,  Sundar Subramanian

Inventor： Siva Theja Maguluri ,  Xinzhou Wu ,  Sundar Subramanian

IPC: H04W72/12 ,  H04W84/18 ,  H04W28/02

CPC classification number: H04W72/1247 ,  H04W28/021 ,  H04W72/1231 ,  H04W84/18

Abstract: A method, computer program product, and an apparatus for a transmit priority distributed backoff are provided. The apparatus forms a peer-to-peer communication link with a second apparatus. In addition, the apparatus determines whether to transmit in an assigned resource for securing a transmit priority for transfer of data to the second apparatus based on a quality of service estimation. Furthermore, the apparatus transmits to the second apparatus based on the determination. A method, computer program product, and an apparatus for a transmit priority token passing are provided. The apparatus forms a peer-to-peer communication link with a second apparatus. In addition, the apparatus determines a transmit priority within the link based on a quality of service estimation. The transmit priority is a priority of transmission between the apparatus and the second apparatus in the link.

Abstract translation: 提供了一种方法，计算机程序产品和用于发送优先级分布式退避的装置。 该装置与第二装置形成对等通信链路。 此外，该装置基于服务质量估计，确定是否在所分配的资源中发送以确保用于将数据传送到第二装置的发送优先级。 此外，该装置基于该确定向第二装置发送。 提供了一种方法，计算机程序产品和用于发送优先令牌传递的装置。 该装置与第二装置形成对等通信链路。 此外，该装置基于服务质量估计来确定链路内的发送优先级。 发送优先级是链路中装置与第二装置之间的传输的优先级。

公开(公告)号：US09084232B2

公开(公告)日：2015-07-14

申请号：US12965399

申请日：2010-12-10

Applicant: Ying Wang ,  Sundar Subramanian ,  Junyi Li

Inventor： Ying Wang ,  Sundar Subramanian ,  Junyi Li

IPC: H04L12/26 ,  H04W76/02 ,  H04L1/00 ,  H04W74/08 ,  H04L1/16

CPC classification number: H04W76/021 ,  H04L1/0026 ,  H04L1/1671 ,  H04W74/0841 ,  H04W76/11 ,  H04W76/14

Abstract: A method of operating a wireless device includes selecting a CID with a first node and receiving a signal including an LID on a resource. At least one of the signal or the resource is based on the selected CID. The method further includes determining a presence of a second node using the selected CID based on the LID in the received signal. Another method of operating a wireless device includes selecting a CID with a first node and sending a signal including an LID on a resource. At least one of the signal or the resource is based on the selected CID.

Abstract translation: 一种操作无线设备的方法包括：选择具有第一节点的CID并在资源上接收包括LID的信号。 信号或资源中的至少一个基于所选择的CID。 该方法还包括基于接收信号中的LID，使用所选择的CID来确定第二节点的存在。 操作无线设备的另一种方法包括：选择具有第一节点的CID并在资源上发送包括LID的信号。 信号或资源中的至少一个基于所选择的CID。

公开(公告)号：US09025466B2

公开(公告)日：2015-05-05

申请号：US13541984

申请日：2012-07-05

Applicant: Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

Inventor： Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

IPC: H04Q7/28 ,  H04W24/00 ,  H04B17/00 ,  H04L12/26 ,  H04J3/14

CPC classification number: H04W24/00 ,  H04J3/14 ,  H04L5/0064 ,  H04L43/50 ,  H04W74/0808 ,  H04W74/0816 ,  H04W84/18

Abstract: A transmission initiation interval timing structure is used in combination with a lower layer timing structure, e.g., physical layer timing structure. A device selects a subset of packet transmission initiation intervals and then limits initiation of packet transmission to those intervals thereby reducing the potential for collisions. Packet transmission may occur outside the initiation interval in which the transmission is initiated. In some embodiments, packet transmission length is intentionally limited to sizes which can be transmitted in a fraction of the amount of time the physical layer allows a single device to continuously transmit, e.g., in an amount of time which is equal to or less than the duration of a packet transmission initiation interval. This increases the probability that multiple devices will be able to successfully transmit small packets at short intervals on a regular basis even when carrier sensing techniques are used.

Abstract translation: 传输启动间隔定时结构与较低层定时结构结合使用，例如物理层定时结构。 设备选择分组传输启动间隔的子集，然后限制分组传输的开始到那些间隔，从而减少冲突的可能性。 分组传输可能发生在传输启动的发起间隔之外。 在一些实施例中，分组传输长度被有意地限制为可以在物理层允许单个设备连续发送的时间量的一小部分中传输的大小，例如，等于或小于 分组传输启动间隔的持续时间。 这增加了即使在使用载波感测技术的情况下，多个设备将能够以短时间间隔成功地发送小分组的概率。

公开(公告)号：US20120147745A1

公开(公告)日：2012-06-14

申请号：US12965399

申请日：2010-12-10

Applicant: Ying Wang ,  Sundar Subramanian ,  Junyi Li

Inventor： Ying Wang ,  Sundar Subramanian ,  Junyi Li

IPC: H04L12/26 ,  H04B17/00

CPC classification number: H04W76/021 ,  H04L1/0026 ,  H04L1/1671 ,  H04W74/0841 ,  H04W76/11 ,  H04W76/14

Abstract: A method of operating a wireless device includes selecting a CID with a first node and receiving a signal including an LID on a resource. At least one of the signal or the resource is based on the selected CID. The method further includes determining a presence of a second node using the selected CID based on the LID in the received signal. Another method of operating a wireless device includes selecting a CID with a first node and sending a signal including an LID on a resource. At least one of the signal or the resource is based on the selected CID.

Abstract translation: 一种操作无线设备的方法包括：选择具有第一节点的CID并在资源上接收包括LID的信号。 信号或资源中的至少一个基于所选择的CID。 该方法还包括基于接收信号中的LID，使用所选择的CID来确定第二节点的存在。 操作无线设备的另一种方法包括：选择具有第一节点的CID并在资源上发送包括LID的信号。 信号或资源中的至少一个基于所选择的CID。

公开(公告)号：US20120014463A1

公开(公告)日：2012-01-19

申请号：US12835264

申请日：2010-07-13

Applicant: Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li

Inventor： Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li

IPC: H04L27/28 ,  H04L27/00

CPC classification number: H04L5/003 ,  H04L5/00 ,  H04L5/0007 ,  H04L27/2601 ,  H04W72/1231

Abstract: Methods and apparatus for determining, e.g., selecting, communications resources, e.g., tones, to use in a communications system are described. The methods are well suited for use in Orthogonal Frequency Division Multiplexing (OFDM) systems. Devices seeking to transmit information select tones in pairs for use in transmitting the information. Each tone pair includes a tone and the corresponding image tone. By restricting a communications device to select communications frequencies in pairs, the problem of interference and reduced dynamic range at a receiver due to IQ imbalance is reduced, as compared to the case where devices may use a tone independent of the corresponding image tone for transmission purposes, since the path loss from the transmitter to the receiver is likely to be the same for both tones and the transmission power level is controlled by an individual device using both of the tones.

Abstract translation: 描述了用于确定例如选择在通信系统中使用的通信资源，例如音调的方法和装置。 该方法非常适用于正交频分复用（OFDM）系统。 寻求发送信息的设备成对选择音调以用于发送信息。 每个音色对包括一个音调和相应的图像色调。 通过限制通信设备成对地选择通信频率，与设备可以使用独立于对应的图像色调的音调以用于传输目的的情况相比，由于IQ不平衡而导致的接收机处的干扰和减小的动态范围的问题减少了 由于从发射机到接收机的路径损耗对于两个音调都是相同的，并且发射功率电平由使用两个音调的单独设备控制。

公开(公告)号：US09237553B2

公开(公告)日：2016-01-12

申请号：US13454963

申请日：2012-04-24

Applicant: Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

Inventor： Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

IPC: H04W72/00

CPC classification number: H04W72/005

Abstract: A method, a computer program product, and an apparatus are provided. In one configuration, the apparatus transmits a first broadcast signal including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus transmits a second broadcast signal in the unicast resource. In another configuration, the apparatus, which is a first wireless device, receives a first broadcast signal from a second wireless device including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus receives a first scheduling signal from the second wireless device in a scheduling resource. The first scheduling signal is for indicating a second intention to use the unicast resource for transmitting a second broadcast signal. Furthermore, the apparatus refrains from transmitting a second scheduling signal in the scheduling resource in response to the first scheduling signal.

Abstract translation: 提供了一种方法，计算机程序产品和装置。 在一种配置中，设备发送包括表示使用广播资源的意图的信息的第一广播信号。 另外，该装置在单播资源中发送第二广播信号。 在另一种配置中，作为第一无线设备的设备从第二无线设备接收包括指示使用用于广播的单播资源的意图的信息的第一广播信号。 此外，该装置在调度资源中从第二无线装置接收第一调度信号。 第一调度信号用于指示使用单播资源发送第二广播信号的第二意图。 此外，该设备响应于第一调度信号，避免在调度资源中发送第二调度信号。

公开(公告)号：US09198195B2

公开(公告)日：2015-11-24

申请号：US13566660

申请日：2012-08-03

Applicant: Xinzhou Wu ,  Sundar Subramanian ,  Shihuan Liu

Inventor： Xinzhou Wu ,  Sundar Subramanian ,  Shihuan Liu

IPC: H04W74/08

CPC classification number: H04W74/0808

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be configured to determine a plurality of slots for transmitting information including a plurality of first type slots and a plurality of second type slots where the second type slots have a longer duration that the first type slots. The apparatus may be configured to transmit information in a first type slot when a previous reception was successful and there is no other transmission expected to occur during a gap preceding the first type slot and during the first type slot. Additionally or in the alternative, apparatus may be configured to transmit information in a second type slot when at least one of the previous reception was unsuccessful or there is another transmission expected to occur during a gap preceding the first type slot or during the first type slot.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置可以被配置为确定用于发送包括多个第一类型时隙和多个第二类型时隙的信息的多个时隙，其中第二类型时隙具有第一类型时隙的较长持续时间。 该装置可以被配置为当先前接收成功并且在第一类型时隙之前的间隙期间和第一类型时隙期间没有预期发生其他传输时，在第一类型时隙中发送信息。 附加地或替代地，装置可以被配置为当前一次接收中的至少一个不成功时发送第二类型时隙中的信息，或者预期在第一类型时隙之前的间隙期间或在第一类型时隙期间发生另一个传输 。

公开(公告)号：US09049733B2

公开(公告)日：2015-06-02

申请号：US13542106

申请日：2012-07-05

Applicant: Sundar Subramanian ,  Shihuan Liu ,  Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li

Inventor： Sundar Subramanian ,  Shihuan Liu ,  Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li

IPC: H04Q7/24 ,  H04W72/12 ,  H04W74/08 ,  H04W76/00 ,  H04L29/06

CPC classification number: H04W72/12 ,  H04L69/161 ,  H04W74/0808 ,  H04W74/0816 ,  H04W76/00

Abstract: Methods and apparatus for use in a wireless system are described where initiation of packet transmission is constrained in accordance to control actual packet transmission in a manner that reduces contention and possible collisions beyond that provided by lower layer resource contention mechanisms, e.g., 802.11 carrier sensing and/or transmission back-off timing mechanisms. Through higher level, e.g., MAC constraints, on packet transmission initiation, an air interface which employs carrier sensing can be used and controlled in a manner which reduces collisions and interference in applications where small packets, e.g., packets which can be transmitted in a fraction of the maximum permitted transmission time. The methods allow small packets in such systems to be transmitted on a periodic or semi-periodic basis in many cases.

Abstract translation: 描述了在无线系统中使用的方法和装置，其中分组传输的启动根据控制实际分组传输受到限制，其方式是减少竞争和可能的冲突超出由较低层资源争用机制提供的冲突，例如802.11载波检测和 /或传输回退定时机制。 通过更高的级别，例如MAC约束，在分组传输发起时，采用载波侦听的空中接口可以以减少小分组（例如可以以分数传输的分组）的应用中的冲突和干扰的方式被使用和控制 的最大允许传输时间。 这些方法允许这种系统中的小分组在许多情况下以周期性或半周期性的方式传输。