公开(公告)号：US20160381630A1

公开(公告)日：2016-12-29

申请号：US14752546

申请日：2015-06-26

Applicant: QUALCOMM Incorporated

Inventor： Parthasarathy KRISHNAMOORTHY ,  Anand RAJURKAR ,  Prashanth MOHAN ,  Aravinth RAJENDRAN ,  Janga Reddy ALIMINETI ,  KrishnaKumar VASANTHASENAN

IPC: H04W48/20 ,  H04W36/16 ,  H04W24/10 ,  H04W68/00 ,  H04W76/02 ,  H04W8/00

CPC classification number: H04W48/20 ,  H04W8/005 ,  H04W24/10 ,  H04W36/08 ,  H04W36/165 ,  H04W68/005 ,  H04W76/14 ,  H04W76/18 ,  H04W76/23 ,  H04W84/042 ,  H04W88/06

Abstract: The disclosure generally relates to dynamic cell reselection to improve device-to-device (D2D) communications where two or more D2D peers are camped onto different cells and one or more D2D peers are located in an overlap region between the cells. For example, in various embodiments, the D2D peers may exchange one or more communication parameters over the (inter-cell) D2D connection and detect that the D2D peers are camped on different base stations (i.e., attached to different cells) based on the exchanged communication parameters. The D2D peer(s) located in the cell overlap region may then obtain measurements on the neighbor cell and a forced cell reselection may be triggered at the appropriate D2D peer(s) located in the cell overlap region such that the D2D peers are camped on the same base station, thereby converting the inter-cell D2D connection into an intra-cell D2D connection that can be more easily maintained.

Abstract translation: 本公开通常涉及动态小区重选以改善设备到设备（D2D）通信，其中两个或多个D2D对等体驻留在不同小区上，并且一个或多个D2D对等体位于小区之间的重叠区域中。 例如，在各种实施例中，D2D对等体可以通过（小区间）D2D连接交换一个或多个通信参数，并且基于交换的（小区间）D2D对等体来检测D2D对等体是否驻留在不同的基站（即，附接到不同的小区） 通讯参数。 位于小区重叠区域中的D2D对等体然后可以获得相邻小区的测量，并且可以在位于小区重叠区域中的适当的D2D对等体处触发强制小区重选，使得D2D对等体驻留在 相同的基站，从而将小区间的D2D连接转换为可以更容易地维护的小区内D2D连接。

公开(公告)号：US20160345323A1

公开(公告)日：2016-11-24

申请号：US14715308

申请日：2015-05-18

Applicant: QUALCOMM Incorporated

Inventor： Parthasarathy KRISHNAMOORTHY ,  Prashanth MOHAN ,  Nithin Thilak NALLASIVAM ,  Tao LUO ,  Wanshi CHEN ,  Kuo-Chun LEE ,  Aravinth RAJENDRAN

IPC: H04W72/04 ,  H04W16/14

CPC classification number: H04W72/0453 ,  H04W16/14 ,  H04W48/02 ,  H04W72/042 ,  H04W84/042 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: Aspects of the present disclosure provide a system, method, and apparatus for implementing an intelligent Dynamic Frequency Selection (DFS) procedure that avoids unnecessary scanning of an unlicensed or shared spectrum, and hence offers efficient power utilization for user equipments (UEs). In one aspect, one or more UEs may periodically identify at least one of a current operating frequency, a mode of operation, and the public land mobile network (PLMN) associated with the UE to determine whether the UE is operating in a DFS channel. Based on the above-identified factors, the UE may determine whether the UE is actively scheduling uplink data transmission on the DFS channel, and thus dynamically enable or disable the DFS scanning procedures on the unlicensed or shared spectrum.

Abstract translation: 本公开的方面提供了一种用于实现智能动态频率选择（DFS）过程的系统，方法和装置，其避免对非授权或共享频谱的不必要的扫描，并且因此为用户设备（UE）提供有效的功率利用。 在一个方面，一个或多个UE可以周期性地标识与UE相关联的当前操作频率，操作模式和公共陆地移动网络（PLMN）中的至少一个，以确定UE是否在DFS信道中操作。 基于上述因素，UE可以确定UE是否在DFS信道上主动调度上行链路数据传输，从而动态地启用或禁用未许可或共享频谱上的DFS扫描过程。

公开(公告)号：US20170019904A1

公开(公告)日：2017-01-19

申请号：US14801963

申请日：2015-07-17

Applicant: QUALCOMM Incorporated

Inventor： Parthasarathy KRISHNAMOORTHY ,  Anand RAJURKAR ,  Prashanth MOHAN ,  Aravinth RAJENDRAN ,  Nithin Thilak NALLASIVAM ,  Janga Reddy ALIMINETI ,  KrishnaKumar VASANTHASENAN

IPC: H04W72/08 ,  H04L12/26 ,  H04W4/00

CPC classification number: H04L43/16 ,  H04W4/70 ,  H04W72/085 ,  H04W76/14

Abstract: A method for improving device-to-device (D2D) communication in an LTE-Direct communication system includes exchanging communication information between a first user equipment (UE) and a second UE over an LTE-Direct connection with a first network resource of a first set of network resources allocated to the first and second UEs by a base station for the LTE-Direct connection. The method also includes determining, by the first UE, whether a first link quality of the LTE-Direct connection with the first network resource is below a link quality threshold. If so, the LTE-Direct connection is shifted to another network resource of the first set of network resources until an LTE-Direct connection is established that has a link quality that is equal to or greater than the link quality threshold.

Abstract translation: 一种用于改善LTE-Direct通信系统中的设备到设备（D2D）通信的方法，包括通过LTE-Direct连接在第一用户设备（UE）和第二UE之间通过第一网络资源交换第一 由用于LTE-Direct连接的基站分配给第一和第二UE的一组网络资源。 该方法还包括由第一UE确定与第一网络资源的LTE-Direct连接的第一链路质量是否低于链路质量阈值。 如果是，则将LTE-Direct连接转移到第一组网络资源的另一网络资源，直到建立具有等于或大于链路质量阈值的链路质量的LTE-Direct连接。