公开(公告)号：US11818744B2

公开(公告)日：2023-11-14

申请号：US16773569

申请日：2020-01-27

Applicant: InterDigital Technology Corporation

Inventor： Arty Chandra ,  Mohammed Sammour ,  Jin Wang

IPC: H04W72/1263 ,  H04W72/543 ,  H04L5/00 ,  H04L47/70 ,  H04B1/713 ,  H04L1/18 ,  H04L47/10 ,  H04L47/762 ,  H04W72/0446 ,  H04L1/1822 ,  H04L1/1867

CPC classification number: H04W72/543 ,  H04B1/713 ,  H04L1/18 ,  H04L5/003 ,  H04L5/0007 ,  H04L5/0064 ,  H04L5/0094 ,  H04L5/0096 ,  H04L47/15 ,  H04L47/70 ,  H04L47/762 ,  H04L47/824 ,  H04W72/0446 ,  H04L1/1822 ,  H04L1/1896

Abstract: A method and apparatus are provided for dynamic resource allocation, scheduling and signaling for variable data real time services (RTS) in long term evolution (LTE) systems. Preferably, changes in data rate for uplink RTS traffic are reported to an evolved Node B (eNB) by a UE using layer 1, 2 or 3 signaling. The eNB dynamically allocates physical resources in response to a change in data rate by adding or removing radio blocks currently assigned to the data flow, and the eNB signals the new resource assignment to the UE. In an alternate embodiment, tables stored at the eNB and the UE describe mappings of RTS data rates to physical resources under certain channel conditions, such that the UE uses the table to locally assign physical resources according to changes in UL data rates. Additionally, a method and apparatus for high level configuration of RTS data flows is also presented.

公开(公告)号：US11678263B2

公开(公告)日：2023-06-13

申请号：US16848613

申请日：2020-04-14

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Mohammed Sammour ,  Arty Chandra ,  Jin Wang ,  Shankar Somasundaram

IPC: H04W52/02 ,  H04W76/20 ,  H04W76/28

CPC classification number: H04W52/0206 ,  H04W52/0216 ,  H04W52/0229 ,  H04W76/20 ,  H04W76/28 ,  Y02D30/70

Abstract: A method of discontinuous reception (DRX) in a wireless transmit receive unit (WTRU) includes the WTRU receiving DRX setting information over a radio resource control (RRC) signal, and the WTRU receiving DRX activation information over medium access control (MAC) signal.

公开(公告)号：US11582650B2

公开(公告)日：2023-02-14

申请号：US17108532

申请日：2020-12-01

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Jin Wang ,  Stephen E. Terry ,  Arty Chandra

IPC: H04W36/00 ,  H04W56/00 ,  H04W92/20

Abstract: A method and system for performing handover in a third generation (3G) long term evolution (LTE) system are disclosed. A source evolved Node-B (eNode-B) makes a handover decision based on measurements and sends a handover request to a target eNode-B. The target eNode-B sends a handover response to the source eNode-B indicating that a handover should commence. The source eNode-B then sends a handover command to a wireless transmit/receive unit (WTRU). The handover command includes at least one of reconfiguration information, information regarding timing adjustment, relative timing difference between the source eNode-B and the target eNode-B, information regarding an initial scheduling procedure at the target eNode-B, and measurement information for the target eNode-B. The WTRU then accesses the target eNode-B and exchanges layer 1/2 signaling to perform downlink synchronization, timing adjustment, and uplink and downlink resource assignment based on information included in the handover command.

公开(公告)号：US11160058B2

公开(公告)日：2021-10-26

申请号：US16274421

申请日：2019-02-13

Applicant: InterDigital Technology Corporation

Inventor： Stephen E. Terry ,  Jin Wang ,  Arty Chandra ,  John S. Chen ,  Guodong Zhang

IPC: H04W72/04 ,  H04B7/26 ,  H04L1/18 ,  H04W56/00 ,  H04W72/12 ,  H04W74/04 ,  H04L5/00

Abstract: In a wireless communication system comprising at least one evolved Node-B (eNB) and a plurality of wireless transmit/receive units (WTRUs), a non-contention based (NCB) channel is established, maintained, and utilized. The NCB channel is allocated for use by one or more WTRUs in the system for utilization in a variety of functions, and the allocation is communicated to the WTRUs. The wireless communication system analyzes the allocation of the NCB channel as required, and the NCB channel is reallocated as required.

公开(公告)号：US20200245239A1

公开(公告)日：2020-07-30

申请号：US16848613

申请日：2020-04-14

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Mohammed Sammour ,  Arty Chandra ,  Jin Wang ,  Shankar Somasundaram

IPC: H04W52/02 ,  H04W72/04 ,  H04W76/28

Abstract: A method of discontinuous reception (DRX) in a wireless transmit receive unit (WTRU) includes the WTRU receiving DRX setting information over a radio resource control (RRC) signal, and the WTRU receiving DRX activation information over medium access control (MAC) signal.

公开(公告)号：US10548159B2

公开(公告)日：2020-01-28

申请号：US15678934

申请日：2017-08-16

Applicant: InterDigital Technology Corporation

Inventor： Arty Chandra ,  Mohammed Sammour ,  Jin Wang

IPC: H04W72/00 ,  H04W72/12 ,  H04L5/00 ,  H04L12/911 ,  H04B1/713 ,  H04L1/18 ,  H04L12/801 ,  H04L12/923 ,  H04W72/04

Abstract: A method and apparatus are provided for dynamic resource allocation, scheduling and signaling for variable data real time services (RTS) in long term evolution (LTE) systems. Preferably, changes in data rate for uplink RTS traffic are reported to an evolved Node B (eNB) by a UE using layer 1, 2 or 3 signaling. The eNB dynamically allocates physical resources in response to a change in data rate by adding or removing radio blocks currently assigned to the data flow, and the eNB signals the new resource assignment to the UE. In an alternate embodiment, tables stored at the eNB and the UE describe mappings of RTS data rates to physical resources under certain channel conditions, such that the UE uses the table to locally assign physical resources according to changes in UL data rates. Additionally, a method and apparatus for high level configuration of RTS data flows is also presented.

公开(公告)号：US10433271B2

公开(公告)日：2019-10-01

申请号：US15846131

申请日：2017-12-18

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Jin Wang ,  John S. Chen ,  Mohammed Sammour ,  Stephen E. Terry ,  Arty Chandra ,  Guodong Zhang

IPC: H04W56/00 ,  H04J11/00 ,  H04W52/02 ,  H04W72/04 ,  H04W92/10

Abstract: A Node-B sends a polling message to a wireless transmit/receive unit (WTRU). The WTRU sends an uplink synchronization burst in response to the polling message without contention. The Node-B estimates an uplink timing shift based on the synchronization burst and sends an uplink timing adjustment command to the WTRU. The WTRU then adjusts uplink timing based on the uplink timing adjustment command. Alternatively, the Node-B may send a scheduling message for uplink synchronization to the WTRU. The WTRU may send a synchronization burst based on the scheduling message. Alternatively, the WTRU may perform contention-based uplink synchronization after receiving a synchronization request from the Node-B. The WTRU may enter an idle state instead of performing a handover to a new cell when the WTRU moves to the new cell. A discontinuous reception (DRX) interval for the WTRU may be set based on activity of the WTRU.

公开(公告)号：US20190174407A1

公开(公告)日：2019-06-06

申请号：US16272727

申请日：2019-02-11

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Mohammed Sammour ,  Sudheer A. Grandhi ,  Arty Chandra

IPC: H04W52/02 ,  H04W4/08 ,  H04W8/18

CPC classification number: H04W52/0209 ,  H04W4/08 ,  H04W8/186 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group.

公开(公告)号：US20190053151A1

公开(公告)日：2019-02-14

申请号：US16163290

申请日：2018-10-17

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Mohammed Sammour ,  Arty Chandra ,  Jin Wang ,  Shankar Somasundaram

IPC: H04W52/02 ,  H04W72/04 ,  H04W76/28

Abstract: A method of discontinuous reception (DRX) in a wireless transmit receive unit (WTRU) includes the WTRU receiving DRX setting information over a radio resource control (RRC) signal, and the WTRU receiving DRX activation information over medium access control (MAC) signal.

公开(公告)号：US09900857B2

公开(公告)日：2018-02-20

申请号：US14848507

申请日：2015-09-09

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： Jin Wang ,  John S. Chen ,  Mohammed Sammour ,  Stephen E. Terry ,  Arty Chandra ,  Guodong Zhang

IPC: H04W56/00 ,  H04J11/00 ,  H04W52/02 ,  H04W72/04 ,  H04W92/10

CPC classification number: H04W56/0045 ,  H04J11/0069 ,  H04W52/0216 ,  H04W72/0413 ,  H04W92/10 ,  Y02D70/00 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/24

Abstract: A Node-B sends a polling message to a wireless transmit/receive unit (WTRU). The WTRU sends an uplink synchronization burst in response to the polling message without contention. The Node-B estimates an uplink timing shift based on the synchronization burst and sends an uplink timing adjustment command to the WTRU. The WTRU then adjusts uplink timing based on the uplink timing adjustment command. Alternatively, the Node-B may send a scheduling message for uplink synchronization to the WTRU. The WTRU may send a synchronization burst based on the scheduling message. Alternatively, the WTRU may perform contention-based uplink synchronization after receiving a synchronization request from the Node-B. The WTRU may enter an idle state instead of performing a handover to a new cell when the WTRU moves to the new cell. A discontinuous reception (DRX) interval for the WTRU may be set based on activity of the WTRU.