公开(公告)号：US09137763B2

公开(公告)日：2015-09-15

申请号：US13679127

申请日：2012-11-16

Applicant: QUALCOMM Incorporated

Inventor： Saurabh R. Tavildar ,  Thomas J. Richardson ,  Junyi Li

IPC: H04J3/06 ,  H04B7/216 ,  H04W4/00 ,  H04B7/212 ,  H04L12/413 ,  H04W56/00

CPC classification number: H04W56/00 ,  H04W56/002 ,  H04W56/0035

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling distributed frequency synchronization based on an average clock rate. In one example, a UE is equipped to receive a synchronization signal from each of one or more UEs, perform an averaging process to generate an average clock rate based at least on the received synchronization signals, and adjust an internal clock rate based on the average clock rate. In another example, a UE is equipped to adjust an internal clock rate of a UE based on timing information provided by a GPS, select a sequence to communicate a synchronization signal transmission from a subset of sequences reserved for GPS connected UEs, and transmit the synchronization signal based on the adjusted internal clock rate.

Abstract translation: 结合基于平均时钟速率实现分布式频率同步而提供一种用于无线通信的方法，装置和计算机程序产品。 在一个示例中，UE被配备为从一个或多个UE中的每一个接收同步信号，执行平均处理以至少基于所接收的同步信号来产生平均时钟速率，并且基于平均值来调整内部时钟速率 时钟频率。 在另一示例中，UE被配备为基于由GPS提供的定时信息来调整UE的内部时钟速率，选择一个序列以从为GPS连接的UE保留的序列的子集传送同步信号传输，并发送同步 信号基于调整后的内部时钟频率。

公开(公告)号：US09072000B2

公开(公告)日：2015-06-30

申请号：US13656347

申请日：2012-10-19

Applicant: QUALCOMM Incorporated

Inventor： Saurabh R. Tavildar ,  Junyi Li ,  Libin Jiang ,  Bilal Sadiq

IPC: H04L12/26 ,  H04W24/10 ,  H04B7/155 ,  H04B7/04

CPC classification number: H04W8/005 ,  H04B7/0417 ,  H04B7/155 ,  H04W24/10 ,  H04W48/08 ,  H04W56/001 ,  H04W72/042 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/21 ,  Y02D70/446

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives discovery resource information from a base station, sends a discovery signal based on the discovery resource information, and receives from at least one user equipment (UE) a request for relaying with the base station based on the discovery signal. The apparatus may also receive a discovery signal from a relay, and send to the relay a request for relaying with a base station based on the discovery signal. The apparatus may further receive a discovery signal from each of a plurality of relays, determine to select one of the plurality of relays based on the discovery signal from each relay, and send to a selected relay a request for relaying with a base station based on the discovery signal when one of the plurality of relays is determined to be selected.

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。 该设备从基站接收发现资源信息，基于发现资源信息发送发现信号，并且基于发现信号从至少一个用户设备（UE）接收与基站进行中继的请求。 该设备还可以从中继器接收发现信号，并且基于发现信号向基站发送对中继的请求。 该设备还可以从多个中继站中的每一个继续接收发现信号，基于来自每个中继器的发现信号来确定选择多个中继站之一，并且基于基站向基站发送与基站进行中继的请求 当确定多个继电器中的一个继电器被选择时，发现信号。

公开(公告)号：US20140112158A1

公开(公告)日：2014-04-24

申请号：US13656268

申请日：2012-10-19

Applicant: QUALCOMM INCORPORATED

Inventor： Saurabh R. Tavildar ,  Eduardo S. Esteves ,  Junyi Li

IPC: H04W72/04 ,  H04B7/14 ,  H04W24/00

CPC classification number: H04B7/15542 ,  H04B7/2606

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives downlink data from a base station via a downlink resource, sends the downlink data to a user equipment (UE) via an uplink resource, receives uplink data from the UE via the uplink resource, and sends the uplink data to the base station via the uplink resource. The apparatus also determines at least one of an observed downlink signal-to-interference-plus-noise ratio (SINR) or an observed uplink interference. The apparatus then broadcasts a relay availability based on the determination that the at least one of the downlink SINR observed is greater than a first threshold or the uplink interference at the relay is less than a second threshold.

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。 该装置经由下行链路资源从基站接收下行链路数据，经由上行链路资源向用户装置（UE）发送下行链路数据，经由上行链路资源从UE接收上行链路数据，并向基站发送上行数据 通过上行资源。 该装置还确定观察到的下行链路信号与干扰加噪声比（SINR）或观测到的上行链路干扰中的至少一个。 然后，该装置基于确定所观察到的下行SINR中的至少一个大于第一阈值或者中继站处的上行链路干扰小于第二阈值的确定来广播中继可用性。

公开(公告)号：US09119181B2

公开(公告)日：2015-08-25

申请号：US13679075

申请日：2012-11-16

Applicant: QUALCOMM Incorporated

Inventor： Libin Jiang ,  Saurabh R. Tavildar ,  Ritesh K. Madan

IPC: H04W4/00 ,  H04W76/02 ,  H04W74/00

CPC classification number: H04W76/11 ,  H04W74/002 ,  H04W76/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with minimizing D2D RTS/CTS signaling overhead resource usage. In one example, a WAN entity is equipped to receive one or more channel gain values from a plurality of UEs, determine that a CID can be reused by multiple D2D links based on the received one or more channel gain values, and transmit information indicating that the CID may be reused. In another example, a UE is equipped to measure a direct power signals and an inverse power echoes on a CID used for a link formed between a third and fourth UE, and determine that the CID may potentially be reused by a link formed with a second UE for D2D RTS/CTS signaling, based at least in part on the measured direct power signals, measured the inverse power echoes, and a SIR threshold.

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，以最小化D2D RTS / CTS信令开销资源使用。 在一个示例中，WAN实体被配备为从多个UE接收一个或多个信道增益值，基于所接收的一个或多个信道增益值来确定CID可以被多个D2D链路重用，并且发送指示 CID可以重复使用。 在另一示例中，UE被配备用于测量在用于在第三和第四UE之间形成的链路的CID上的直接功率信号和反功率回波，并且确定CID可能潜在地被形成有第二个 至少部分地基于所测量的直接功率信号，测量反向功率回波和SIR阈值的用于D2D RTS / CTS信令的UE。

公开(公告)号：US08923464B2

公开(公告)日：2014-12-30

申请号：US13679101

申请日：2012-11-16

Applicant: QUALCOMM Incorporated

Inventor： Saurabh R. Tavildar ,  Thomas J. Richardson ,  Junyi Li

IPC: H04L7/00 ,  H04W56/00 ,  H04J3/06

CPC classification number: H04J3/0664 ,  H04J3/0641 ,  H04W56/00 ,  H04W56/0015 ,  H04W56/0035

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling distributed frequency synchronization based on a fastest node clock rate. In one example, a first UE is equipped to determine that a fastest clock rate is faster than an internal clock rate of the first UE by more than a first positive offset, and adjust the internal clock rate based on the determined fastest clock rate. In an aspect, the fastest clock rate is associated with a second UE of one or more other UEs from which synchronization signals may be received. In another example, a UE is equipped to obtain GPS based timing information, adjust an internal clock rate based on the GPS based timing information, and transmit a synchronization signal at an artificially earlier time in comparison to a scheduled time of transmission associated with the adjusted internal clock rate.

Abstract translation: 提供一种用于无线通信的方法，装置和计算机程序产品，其结合基于最快节点时钟速率的分布式频率同步。 在一个示例中，第一UE被配备为确定最快的时钟速率比第一UE的内部时钟速率快多于第一正偏移，并且基于所确定的最快时钟速率来调整内部时钟速率。 在一个方面，最快的时钟速率与一个或多个其他UE的第二UE相关联，从该UE可接收同步信号。 在另一示例中，UE被配备以获得基于GPS的定时信息，基于基于GPS的定时信息来调整内部时钟速率，并且在与被调整的定时信息相关联的调度传输时间的情况下，在人为的较早时间发送同步信号 内部时钟速率。

公开(公告)号：US20140140269A1

公开(公告)日：2014-05-22

申请号：US13679127

申请日：2012-11-16

Applicant: QUALCOMM INCORPORATED

Inventor： Saurabh R. Tavildar ,  Thomas J. Richardson ,  Junyi Li

IPC: H04W56/00

CPC classification number: H04W56/00 ,  H04W56/002 ,  H04W56/0035

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling distributed frequency synchronization based on an average clock rate. In one example, a UE is equipped to receive a synchronization signal from each of one or more UEs, perform an averaging process to generate an average clock rate based at least on the received synchronization signals, and adjust an internal clock rate based on the average clock rate. In another example, a UE is equipped to adjust an internal clock rate of a UE based on timing information provided by a GPS, select a sequence to communicate a synchronization signal transmission from a subset of sequences reserved for GPS connected UEs, and transmit the synchronization signal based on the adjusted internal clock rate.

Abstract translation: 结合基于平均时钟速率实现分布式频率同步而提供一种用于无线通信的方法，装置和计算机程序产品。 在一个示例中，UE被配备为从一个或多个UE中的每一个接收同步信号，执行平均处理以至少基于所接收的同步信号来产生平均时钟速率，并且基于平均值来调整内部时钟速率 时钟频率。 在另一示例中，UE被配备为基于由GPS提供的定时信息来调整UE的内部时钟速率，选择一个序列以从为GPS连接的UE保留的序列的子集传送同步信号传输，并发送同步 信号基于调整后的内部时钟频率。

公开(公告)号：US20140086158A1

公开(公告)日：2014-03-27

申请号：US13628510

申请日：2012-09-27

Applicant: QUALCOMM INCORPORATED

Inventor： Saurabh R. Tavildar ,  Shreeshankar R. Bodas ,  Junyi Li

IPC: H04W72/04

CPC classification number: H04L1/1607

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a resource assignment from a serving base station for a device-to-device (D2D) link with a transmitter, attempts to receive a data packet from the transmitter based on the resource assignment, sends an acknowledgment (ACK) only to the serving base station when reception of the data packet succeeds, and sends a negative acknowledgment (NACK) only to the transmitter when the reception of the data packet fails. In an aspect, the apparatus receives a resource assignment from a serving base station for a D2D link with a receiver, sends a data packet to the receiver based on the resource assignment, and assumes the data packet is successfully received at the receiver unless a NACK is received from the receiver, wherein the NACK indicates a failed reception of the data packet at the receiver.

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。 该设备从服务基站接收到与发射机的设备到设备（D2D）链路的资源分配，尝试基于资源分配从发射机接收数据分组，仅将ACK（ACK）发送到 当数据分组的接收成功时服务基站，并且当数据分组的接收失败时，仅向发射机发送否定确认（NACK）。 在一方面，设备从服务基站接收与接收机的D2D链路的资源分配，基于资源分配向接收者发送数据分组，并且假设数据分组在接收机处被成功接收，除非NACK 从接收机接收，其中NACK指示在接收机处数据分组的接收失败。

公开(公告)号：US20140140456A1

公开(公告)日：2014-05-22

申请号：US13679101

申请日：2012-11-16

Applicant: QUALCOMM INCORPORATED

Inventor： Saurabh R. Tavildar ,  Thomas J. Richardson ,  Junyi Li

IPC: H04W56/00

CPC classification number: H04J3/0664 ,  H04J3/0641 ,  H04W56/00 ,  H04W56/0015 ,  H04W56/0035

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling distributed frequency synchronization based on a fastest node clock rate. In one example, a first UE is equipped to determine that a fastest clock rate is faster than an internal clock rate of the first UE by more than a first positive offset, and adjust the internal clock rate based on the determined fastest clock rate. In an aspect, the fastest clock rate is associated with a second UE of one or more other UEs from which synchronization signals may be received. In another example, a UE is equipped to obtain GPS based timing information, adjust an internal clock rate based on the GPS based timing information, and transmit a synchronization signal at an artificially earlier time in comparison to a scheduled time of transmission associated with the adjusted internal clock rate.

Abstract translation: 提供一种用于无线通信的方法，装置和计算机程序产品，其结合基于最快节点时钟速率的分布式频率同步。 在一个示例中，第一UE被配备为确定最快的时钟速率比第一UE的内部时钟速率快多于第一正偏移，并且基于所确定的最快时钟速率来调整内部时钟速率。 在一个方面，最快的时钟速率与一个或多个其他UE的第二UE相关联，从该UE可接收同步信号。 在另一示例中，UE被配备以获得基于GPS的定时信息，基于基于GPS的定时信息来调整内部时钟速率，并且在与被调整的定时信息相关联的调度传输时间的情况下，在人为的较早时间发送同步信号 内部时钟速率。

公开(公告)号：US20140140222A1

公开(公告)日：2014-05-22

申请号：US13679075

申请日：2012-11-16

Applicant: QUALCOMM INCORPORATED

Inventor： Libin Jiang ,  Saurabh R. Tavildar ,  Ritesh K. Madan

IPC: H04W72/04

CPC classification number: H04W76/11 ,  H04W74/002 ,  H04W76/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with minimizing D2D RTS/CTS signaling overhead resource usage. In one example, a WAN entity is equipped to receive one or more channel gain values from a plurality of UEs, determine that a CID can be reused by multiple D2D links based on the received one or more channel gain values, and transmit information indicating that the CID may be reused. In another example, a UE is equipped to measure a direct power signals and an inverse power echoes on a CID used for a link formed between a third and fourth UE, and determine that the CID may potentially be reused by a link formed with a second UE for D2D RTS/CTS signaling, based at least in part on the measured direct power signals, measured the inverse power echoes, and a SIR threshold.

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，以最小化D2D RTS / CTS信令开销资源使用。 在一个示例中，WAN实体被配备为从多个UE接收一个或多个信道增益值，基于所接收的一个或多个信道增益值来确定CID可以被多个D2D链路重用，并且发送指示 CID可以重复使用。 在另一示例中，UE被配备用于测量在用于在第三和第四UE之间形成的链路的CID上的直接功率信号和反功率回波，并且确定CID可能潜在地被形成有第二个 至少部分地基于所测量的直接功率信号，测量反向功率回波和SIR阈值的用于D2D RTS / CTS信令的UE。

公开(公告)号：US20140112162A1

公开(公告)日：2014-04-24

申请号：US13656347

申请日：2012-10-19

Applicant: QUALCOMM INCORPORATED

Inventor： Saurabh R. Tavildar ,  Junyi Li ,  Libin Jiang ,  Bilal Sadiq

IPC: H04L12/26

CPC classification number: H04W8/005 ,  H04B7/0417 ,  H04B7/155 ,  H04W24/10 ,  H04W48/08 ,  H04W56/001 ,  H04W72/042 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/21 ,  Y02D70/446

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives discovery resource information from a base station, sends a discovery signal based on the discovery resource information, and receives from at least one user equipment (UE) a request for relaying with the base station based on the discovery signal. The apparatus may also receive a discovery signal from a relay, and send to the relay a request for relaying with a base station based on the discovery signal. The apparatus may further receive a discovery signal from each of a plurality of relays, determine to select one of the plurality of relays based on the discovery signal from each relay, and send to a selected relay a request for relaying with a base station based on the discovery signal when one of the plurality of relays is determined to be selected.

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。 该设备从基站接收发现资源信息，基于发现资源信息发送发现信号，并且基于发现信号从至少一个用户设备（UE）接收与基站进行中继的请求。 该设备还可以从中继器接收发现信号，并且基于发现信号向基站发送对中继的请求。 该设备还可以从多个中继站中的每一个继续接收发现信号，基于来自每个中继器的发现信号来确定选择多个中继站之一，并且基于基站向基站发送与基站进行中继的请求 当确定多个继电器中的一个继电器被选择时，发现信号。