公开(公告)号：US20190191290A1

公开(公告)日：2019-06-20

申请号：US16282421

申请日：2019-02-22

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Gwenael Poitau ,  Ghyslain Pelletier ,  Marian Rudolf ,  Benoit Pelletier ,  Paul Marinier ,  Diana Pani

IPC: H04W8/00 ,  H04W72/04 ,  H04W76/14

CPC classification number: H04W8/005 ,  H04W72/0413 ,  H04W72/0446 ,  H04W76/14

Abstract: Physical layer processing and procedures for device-to-device (D2D) discovery signal generation and transmission and scheduling of D2D discovery signals are described. Detection and measurement of a D2D discovery signal, D2D signal identity management, and monitoring by a wireless transmit/receive unit (WTRU) of PDCCH for D2D discovery scheduling is described, as is a WTRU that may be configured with a D2D-specific transmission/reception opportunity pattern. The discovery signal may carry a payload for explicit information about user and/or service identity, and may be mapped to physical resources in such a way as to decouple transmission/reception of the discovery signal from downlink operations. A WTRU may measure a D2D discovery signal quality and report to the network.

公开(公告)号：US10219291B2

公开(公告)日：2019-02-26

申请号：US13907368

申请日：2013-05-31

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ghyslain Pelletier ,  Diana Pani ,  Benoit Pelletier ,  Christopher R. Cave ,  Paul Marinier ,  Tao Deng ,  Gwenael Poitau ,  Kiran K. Vanganuru

IPC: H04W72/12 ,  H04W76/14 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W88/12 ,  H04W92/18

Abstract: A method and apparatus for enabling scheduling and control of direct link communication in a cellular communication system may be disclosed. A method for use in a first wireless transmit/receive unit (WTRU) may include transmitting a request for device-to-device (D2D) communication resources to an enhanced Node B (eNB). The first WTRU may receive an allocation of resources for multiple transmission time intervals (TTI) to be used for D2D communications from the eNB. The first WTRU may schedule D2D communications with a second WTRU to be performed during the allocated resources. The first WTRU may perform D2D communications with the second WTRU using half duplex communications during the allocated resources.

公开(公告)号：US09807709B2

公开(公告)日：2017-10-31

申请号：US13906063

申请日：2013-05-30

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Tao Deng ,  Gregory S. Sternberg ,  Paul Marinier ,  Gwenael Poitau ,  Marian Rudolf

IPC: H04B7/00 ,  H04W52/38 ,  H04W52/28 ,  H04W52/34 ,  H04W52/36 ,  H04W76/02 ,  H04W88/06

CPC classification number: H04W52/383 ,  H04W52/281 ,  H04W52/346 ,  H04W52/365 ,  H04W52/367 ,  H04W76/14 ,  H04W76/15 ,  H04W88/06

Abstract: Device-to-device (D2D) cross link power control systems and methods may be disclosed. For example, a device such as a UE or WTRU may determine whether it may have simultaneous transmissions where at least one of the transmissions may include a cross link transmission. The device may further determine whether a total transmit power of the simultaneous transmissions may exceed a maximum transmit power of the device. If the device may have simultaneous transmissions and such transmissions may exceed the maximum transmit power, the device may reallocate power based on a priority or priority setting. The device may further determine a maximum cross link power, a maximum device power, and a cross link transmit power level such that the device may further control the power for transmissions based thereon.

公开(公告)号：US20130324182A1

公开(公告)日：2013-12-05

申请号：US13906063

申请日：2013-05-30

Applicant: Interdigital Patent Holdings, Inc.

Inventor： Tao Deng ,  Gregory S. Sternberg ,  Paul Marinier ,  Gwenael Poitau ,  Marian Rudolf

IPC: H04W52/38

CPC classification number: H04W52/383 ,  H04W52/281 ,  H04W52/346 ,  H04W52/365 ,  H04W52/367 ,  H04W76/14 ,  H04W76/15 ,  H04W88/06

Abstract: Device-to-device (D2D) cross link power control systems and methods may be disclosed. For example, a device such as a UE or WTRU may determine whether it may have simultaneous transmissions where at least one of the transmissions may include a cross link transmission. The device may further determine whether a total transmit power of the simultaneous transmissions may exceed a maximum transmit power of the device. If the device may have simultaneous transmissions and such transmissions may exceed the maximum transmit power, the device may reallocate power based on a priority or priority setting. The device may further determine a maximum cross link power, a maximum device power, and a cross link transmit power level such that the device may further control the power for transmissions based thereon.

Abstract translation: 可以公开设备到设备（D2D）交叉链路功率控制系统和方法。 例如，诸如UE或WTRU的设备可以确定其是否可以具有同时传输，其中传输中的至少一个可以包括交叉链路传输。 设备还可以确定同时传输的总发射功率是否可以超过设备的最大发射功率。 如果设备可以具有同时传输，并且这样的传输可能超过最大传输功率，则设备可以基于优先级或优先级设置重新分配功率。 该设备还可以确定最大交叉链路功率，最大设备功率和交叉链路发射功率电平，使得设备可以基于此进一步控制用于传输的功率。

公开(公告)号：US20130322413A1

公开(公告)日：2013-12-05

申请号：US13907368

申请日：2013-05-31

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Ghyslain Pelletier ,  Diana Pani ,  Benoit Pelletier ,  Christopher R. Cave ,  Paul Marinier ,  Tao Deng ,  Gwenael Poitau ,  Kiran K. Vanganuru

IPC: H04W72/12

CPC classification number: H04W72/1289 ,  H04L1/1822 ,  H04L1/1896 ,  H04L5/0091 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

Abstract: A method and apparatus for enabling scheduling and control of direct link communication in a cellular communication system may be disclosed. A method for use in a first wireless transmit/receive unit (WTRU) may include transmitting a request for device-to-device (D2D) communication resources to an enhanced Node B (eNB). The first WTRU may receive an allocation of resources for multiple transmission time intervals (TTI) to be used for D2D communications from the eNB. The first WTRU may schedule D2D communications with a second WTRU to be performed during the allocated resources. The first WTRU may perform D2D communications with the second WTRU using half duplex communications during the allocated resources.

Abstract translation: 可以公开一种用于在蜂窝通信系统中进行直接链路通信的调度和控制的方法和装置。 用于第一无线发射/接收单元（WTRU）的方法可以包括向增强型节点B（eNB）发送对设备到设备（D2D）通信资源的请求。 第一WTRU可以接收用于来自eNB的D2D通信的多个传输时间间隔（TTI）的资源分配。 第一WTRU可以调度在所分配的资源期间执行的与第二WTRU的D2D通信。 在分配的资源期间，第一WTRU可以使用半双工通信来执行与第二WTRU的D2D通信。