公开(公告)号：US10764857B2

公开(公告)日：2020-09-01

申请号：US16530178

申请日：2019-08-02

Applicant: InterDigital Technology Corporation

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

IPC: H04W56/00 ,  H04W52/02 ,  H04J11/00 ,  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：US20140044078A1

公开(公告)日：2014-02-13

申请号：US14055350

申请日：2013-10-16

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

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

IPC: H04L5/00

CPC classification number: H04W72/0413 ,  H04B7/2621 ,  H04L1/1812 ,  H04L5/0037 ,  H04W56/0045 ,  H04W72/1278 ,  H04W74/04

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.

Abstract translation: 在包括至少一个演进的节点B（eNB）和多个无线发射/接收单元（WTRU）的无线通信系统中，建立，维护和利用基于非竞争的（NCB）信道。 NCB信道被分配供在系统中的一个或多个WTRU使用以用于各种功能，并且该分配被传送到WTRU。 无线通信系统根据需要分析NCB信道的分配，根据需要重新分配NCB信道。

公开(公告)号：US20250024392A1

公开(公告)日：2025-01-16

申请号：US18900218

申请日：2024-09-27

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 ,  H04W72/21 ,  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：US11902981B2

公开(公告)日：2024-02-13

申请号：US17306127

申请日：2021-05-03

Applicant: InterDigital Technology Corporation

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

IPC: H04W72/04 ,  H04W72/21 ,  H04B7/26 ,  H04L1/1812 ,  H04W56/00 ,  H04W74/04 ,  H04W72/20 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04B7/2621 ,  H04L1/1812 ,  H04L5/0037 ,  H04W56/0045 ,  H04W72/20 ,  H04W74/04

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：US20210258950A1

公开(公告)日：2021-08-19

申请号：US17306127

申请日：2021-05-03

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：US20150382317A1

公开(公告)日：2015-12-31

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 ,  H04W72/04 ,  H04W52/02

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.

Abstract translation: 节点B向无线发射/接收单元（WTRU）发送轮询消息。 WTRU响应于轮询消息而无争用地发送上行链路同步突发。 节点B基于同步脉冲串估计上行链路定时偏移，并向WTRU发送上行链路定时调整命令。 然后，WTRU基于上行链路定时调整命令调整上行链路定时。 或者，节点B可以向WTRU发送用于上行链路同步的调度消息。 WTRU可以基于调度消息发送同步突发。 或者，WTRU可以在从节点B接收到同步请求之后执行基于竞争的上行链路同步。 当WTRU移动到新小区时，WTRU可以进入空闲状态而不是执行到新小区的切换。 可以基于WTRU的活动来设置WTRU的不连续接收（DRX）间隔。