公开(公告)号：US09913311B1

公开(公告)日：2018-03-06

申请号：US15244386

申请日：2016-08-23

Applicant: QUALCOMM Incorporated

Inventor： Daniel Amerga ,  Arvind Santhanam ,  Ashish Iyer ,  Shailesh Maheshwari ,  Srinivasan Rajagopalan ,  Srinivasan Balasubramanian ,  Scott Hoover

IPC: H04W76/02 ,  H04W8/00 ,  H04W28/22 ,  H04W72/04

CPC classification number: H04W76/14 ,  H04W4/70 ,  H04W8/005 ,  H04W28/22 ,  H04W72/0486 ,  H04W72/10

Abstract: In device-to-device (D2D) communication in a licensed spectrum, selection of a transmit pool and distribution of codes to be transmitted to the transmit pools for more efficient transmission is desired, for a given period. The apparatus may a user equipment (UE) for D2D communication in a licensed spectrum. The UE sets a discovery epoch to a shortest discovery period among discovery periods of a plurality of transmit resource pools, each transmit resource pool of the plurality of transmit resource pools associated with a respective frequency. The UE estimates a channel utilization of each transmit resource pool of the plurality of transmit resource pools based on one or more previous transmissions on each transmit resource pool of the plurality of transmit resource pools. The UE selects a transmit resource pool among the plurality of transmit resource pools for a D2D transmission within the discovery epoch based on the estimated channel utilizations.

公开(公告)号：US10231239B2

公开(公告)日：2019-03-12

申请号：US15215340

申请日：2016-07-20

Applicant: QUALCOMM Incorporated

Inventor： Ashish Iyer ,  Arvind Santhanam ,  Srinivasan Balasubramanian ,  Daniel Amerga ,  Scott Hoover ,  Cheol Hee Park ,  Srinivasan Rajagopalan ,  Shailesh Maheshwari ,  Reza Shahidi

IPC: H04W72/04 ,  H04W76/14 ,  H04L5/00

Abstract: Device-to-device operations are scheduled based on receive and transmit pools that may have a conflict in time domain. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus for resolving time domain conflict in device-to-device communication are provided. The apparatus may compute a first block rate metric for a first device-to-device communication on a first frequency and a second block rate metric for a second device-to-device communication on a second frequency. The apparatus may detect a time-domain conflict between the first device-to-device communication on the first frequency and the second device-to-device communication on the second frequency. The apparatus may prioritize the first device-to-device communication on the first frequency and the second device-to-device communication on the second frequency based on the first block rate metric and the second block rate metric.