公开(公告)号：US20190327262A1

公开(公告)日：2019-10-24

申请号：US16459170

申请日：2019-07-01

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr

IPC: H04L29/06 ,  H04W12/08 ,  H04W76/19 ,  H04W76/15 ,  H04W12/04

Abstract: The disclosure relates to methods for establishing a secure communication link between a mobile station and a secondary base station in a mobile communication system. The disclosure is also providing mobile communication system for performing these methods, and computer readable media the instructions of which cause the mobile communication system to perform the methods described herein. Specifically, the disclosure suggests that in response to the detected or signaled potential security breach, the master base station increments a freshness counter for re-initializing the communication between the mobile station and the secondary base station; and the mobile station and the secondary base station re-initialize the communication there between. The re-initialization is performed under the control of the master base station and further includes deriving a same security key based on said incremented freshness counter, and establishing the secure communication link utilizing the same, derived security key.

公开(公告)号：US20190254006A1

公开(公告)日：2019-08-15

申请号：US16161754

申请日：2018-10-16

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr ,  Lilei Wang ,  Sujuan Feng

IPC: H04W72/04 ,  H04W48/10 ,  H04W48/06 ,  H04W76/14 ,  H04W72/02

Abstract: The invention relates to a method for allocating radio resources to a transmitting terminal for performing direct communication transmission over a direct link connection. The transmitting terminal receives a system information broadcast from the base station, which comprises information on a temporary transmission radio resource pool, indicating radio resources for performing a direct communication transmission, and comprises configuration information on the resource pool to limit the amount of time that the temporary radio resource pool is usable by the transmitting terminal.

公开(公告)号：US20190246418A1

公开(公告)日：2019-08-08

申请号：US16385996

申请日：2019-04-16

Applicant: Sun Patent Trust

Inventor： Joachim Loehr ,  Prateek Basu Mallick

IPC: H04W72/12 ,  H04W76/14

CPC classification number: H04W72/1284 ,  H04W72/1236 ,  H04W76/14

Abstract: The present invention relates to a D2D capable a communication method and to a transmitting user equipment, which transmits data to a receiving user equipment over a direct link data channel, uses the services of the eNodeB in order to have resources allocated for transmitting said data. To this end the UE sends to the eNB scheduling information using resources of a subframe dedicated for standard uplink communication through the eNodeB, rather than using resources on the subframe dedicated to D2D data transmission. In order to allow the eNB to distinguish whether the received scheduling request is for allocating resources for transmitting data over the direct link channel or over the eNB, UE may send along with the scheduling information also identification information associated to the scheduling information.

公开(公告)号：US20190028877A1

公开(公告)日：2019-01-24

申请号：US16142884

申请日：2018-09-26

Applicant: Sun Patent Trust

Inventor： Joachim Loehr ,  Prateek Basu Mallick

IPC: H04W8/00 ,  H04W72/12 ,  H04W72/04 ,  H04L29/08 ,  H04W76/14

Abstract: The present invention relates to transmitting user equipment for transmitting data to a receiving user equipment over a direct link connection in a communication system. The transmitting user equipment is adapted to request resources for discovery transmission in the communication system and comprises a generating unit configured to generate a resource request message for allocation of resources for discovery transmission. The resource request message includes information on the amount of data to be transmitted and on discovery indication. The transmitting user equipment may further include a transmitting unit configured to transmit to a base station the generated resource request message, and a receiving unit adapted to receive from the base station a resource configuration message allocating the requested resources for discovery transmission.

公开(公告)号：US20180205661A1

公开(公告)日：2018-07-19

申请号：US15922750

申请日：2018-03-15

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr

IPC: H04L12/823 ,  H04W16/32 ,  H04L12/875 ,  H04W28/06 ,  H04W28/08

Abstract: The invention relates to a method for efficiently discarding data packets destined to a mobile station connected to both a master base station and a secondary base station. The master base station configures a secondary discard function in a lower layer of the secondary base station, based on the master discard function in the higher layer of the master base station. The master base station forwards the data packet from the higher layer to the lower of the secondary base station. The secondary discard function of the lower layer at the secondary base station discards the received data packet upon expiry of the secondary timer started by the lower layer upon reception of the data packet from the higher layer at the master base station.

公开(公告)号：US20180139646A1

公开(公告)日：2018-05-17

申请号：US15851631

申请日：2017-12-21

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr ,  Hidetoshi Suzuki

IPC: H04W28/02 ,  H04W28/08 ,  H04W72/04 ,  H04W16/32 ,  H04W80/06 ,  H04W84/04 ,  H04W80/02

CPC classification number: H04W28/0278 ,  H04W16/32 ,  H04W28/085 ,  H04W72/0413 ,  H04W80/02 ,  H04W80/06 ,  H04W84/045

Abstract: The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.

公开(公告)号：US09954789B2

公开(公告)日：2018-04-24

申请号：US14906888

申请日：2014-07-23

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr

IPC: H04L12/823 ,  H04W28/06 ,  H04W28/08 ,  H04L12/875 ,  H04W16/32

CPC classification number: H04L47/32 ,  H04L47/564 ,  H04W16/32 ,  H04W28/06 ,  H04W28/08

Abstract: The invention relates to a method for efficiently discarding data packets destined to a mobile station connected to both a master base station and a secondary base station. The master base station configures a secondary discard function in a lower layer of the secondary base station, based on the master discard function in the higher layer of the master base station. The master base station forwards the data packet from the higher layer to the lower of the secondary base station. The secondary discard function of the lower layer at the secondary base station discards the received data packet upon expiry of the secondary timer started by the lower layer upon reception of the data packet from the higher layer at the master base station.

公开(公告)号：US20170257205A1

公开(公告)日：2017-09-07

申请号：US15594424

申请日：2017-05-12

Applicant: Sun Patent Trust

Inventor： Joachim Loehr ,  Hidetoshi Suzuki ,  Prateek Basu Mallick

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

CPC classification number: H04L5/0057 ,  H04L5/0051 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W76/28

Abstract: The invention relates to a method for transmitting a periodic channel quality report (CSI) and/or a sounding reference symbol (SRS) from a UE to an eNodeB. To avoid double decoding at the eNodeB in transient phases, a deterministic behavior of the UE is defined by the invention, according to which the eNodeB can unambiguously determine whether the UE will transmit the CSI/SRS or not. According to one embodiment, the UL grants and/or DL assignments received until and including subframe N−4 only are considered; UL grants and/or DL assignments received by the UE after subframe N−4 are discarded for the determination. Additionally, DRX-related timers at subframe N−4 are considered for the determination. In a second embodiment, DRX MAC control elements from the eNodeB, instructing the UE to enter DRX, i.e., become Non-Active, are only considered for the determination if they are received before subframe N−4, i.e., until and including subframe N−(4+k).

公开(公告)号：US20170215160A1

公开(公告)日：2017-07-27

申请号：US15327978

申请日：2014-08-01

Applicant: Sun Patent Trust

Inventor： Joachim Löhr ,  Prateek Basu Mallick ,  Michael Einhaus ,  Sujuan Feng ,  Hidetoshi Suzuki ,  Lilei Wang

IPC: H04W56/00

CPC classification number: H04W56/002 ,  H04W76/10 ,  H04W76/14 ,  H04W92/18

Abstract: The present invention relates to a transmitting terminal for transmitting data to a receiving terminal over a direct link connection. The transmitting terminal comprises a receiving unit that receives from the base station a timing command for adjusting an uplink transmission timing value for data transmissions to the base station. A generating unit generates direct link timing information, based on the uplink transmission timing value, the direct link timing information being usable for generating a direct link transmission timing value for determining the timing of the data transmission over the direct link. A transmitting unit transmits to the receiving terminal the generated direct link timing information, the direct link timing information being usable at the receiving terminal for generating a direct link reception timing value for determining the reception timing of data to be received on the direct link from the transmitting terminal.

公开(公告)号：US20250031206A1

公开(公告)日：2025-01-23

申请号：US18905838

申请日：2024-10-03

Applicant: Sun Patent Trust

Inventor： Joachim Loehr ,  Prateek Basu Mallick ,  Lilei Wang

IPC: H04W72/20 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/56

Abstract: The invention relates to the allocation of radio resources by a transmitting user equipment to perform a plurality of direct SL transmissions to one or more receiving user equipments. The allocation of radio resources within a SC period is restricted, for the SC period, by a maximum number of SL processes with which a transmitting user equipment is configured. A plurality of SL grants is acquired. Among the acquired SL grants a number of those SL grants is selected that have most recently been acquired before the start of the subsequent SC period. A plurality of SL processes is associated such that each of the plurality of SL process is associated with a different one of the selected number of SL grants. For each of the plurality of the SL processes, the radio resources are allocated. Each of the plurality of SL transmissions comprises at least one SCI transmission and at least one data transmission over the SL interface.