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1.发明授权公开(公告)号：US12177716B2
公开(公告)日：2024-12-24
申请号：US17677949
申请日：2022-02-22
Applicant: InterDigital Technology Corporation
Inventor： Arty Chandra , Eldad M. Zeira , Mohammed Sammour , Sudheer A. Grandhi
Abstract: A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action frame, management frame, CSI frame, control frame, or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead of directly sending an acknowledgement (ACK) packet. The responder preferably accesses the wireless medium to send the response frame in a short inter-frame spacing (SIFS). With this scheme, a long delay associated with having to contend for the wireless medium to send the response frame is avoided and therefore, the responsiveness and timeliness of the feedback mechanism is significantly enhanced. The response frame may be piggybacked on or aggregated with another packet.
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2.发明授权公开(公告)号：US12137429B2
公开(公告)日：2024-11-05
申请号：US18523105
申请日：2023-11-29
Applicant: InterDigital Technology Corporation
Inventor： Jin Wang , John S. Chen , Mohammed Sammour , Stephen E. Terry , Arty Chandra , Guodong Zhang
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.
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公开(公告)号：US12004070B2
公开(公告)日：2024-06-04
申请号：US17885629
申请日：2022-08-11
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Kalpendu R. Pasad , Sung-Hyuk Shin , Mihaela C. Beluri , Marian Rudolf , Pascal M. Adjakple , John W. Haim
CPC classification number: H04W40/22 , H04B7/155 , H04L5/0053 , H04L5/0094 , H04W72/23 , H04W88/04 , H04W72/04 , H04W72/20 , H04W84/047
Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation, map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these. Also described are methods and apparatus for optimizing signaling overheads by avoiding R-PCFICH and minimizing bits needs for resource allocation.
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公开(公告)号：US11917623B2
公开(公告)日：2024-02-27
申请号：US17246785
申请日：2021-05-03
Applicant: InterDigital Technology Corporation
Inventor： Stephen E. Terry , Jin Wang , Arty Chandra , John S. Chen , Guodong Zhang
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.
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5.发明授权公开(公告)号：US11889414B2
公开(公告)日：2024-01-30
申请号：US17873308
申请日：2022-07-26
Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
Inventor： Mohammed Sammour , Sudheer A. Grandhi , Arty Chandra
CPC classification number: H04W52/0209 , H04W4/08 , H04W8/186 , H04W52/0216 , H04W52/0219 , H04W52/0229 , H04W84/12 , H04W88/08 , Y02D30/70
Abstract: A wireless station comprises a receiver that is configured to receive a frame from an access point (AP). The frame comprises a physical layer header. The physical layer header includes an indication of a color associated with the AP. A processor in the STA is configured to enter a power save state based on the color associated with the AP not matching a stored AP color of an AP that the STA is associated with. An AP that performs a similar function is also disclosed.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11871371B2
公开(公告)日：2024-01-09
申请号：US17991220
申请日：2022-11-21
Applicant: InterDigital Technology Corporation
Inventor： Jin Wang , John S. Chen , Mohammed Sammour , Stephen E. Terry , Arty Chandra , Guodong Zhang
CPC classification number: H04W56/0045 , H04J11/0069 , H04W52/0216 , H04W72/21 , H04W92/10 , Y02D30/70
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.
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7.发明公开公开(公告)号：US20230254720A1
公开(公告)日：2023-08-10
申请号：US18134839
申请日：2023-04-14
Applicant: InterDigital Technology Corporation
Inventor： Paul Marinier , Douglas Castor
CPC classification number: H04W24/10 , H04L1/0026 , H04L1/0027 , H04L5/0057
Abstract: A method and apparatus for adjusting a channel quality indicator (CQI) feedback period to increase uplink capacity in a wireless communication system are disclosed. The uplink capacity is increased by reducing the uplink interference caused by CQI transmissions. A wireless transmit/receive unit (WTRU) monitors a status of downlink transmissions to the WTRU and sets the CQI feedback period based on the status of the downlink transmissions to the WTRU. A base station monitors uplink and downlink transmission needs. The base station determines the CQI feedback period of at least one WTRU based on the uplink and downlink transmission needs and sends a command to the WTRU to change the CQI feedback period of the WTRU.
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8.发明授权公开(公告)号：US11711777B2
公开(公告)日：2023-07-25
申请号：US16935035
申请日：2020-07-21
Applicant: InterDigital Technology Corporation
Inventor： Jin Wang , John S. Chen , Mohammed Sammour , Stephen E. Terry , Arty Chandra , Guodong Zhang
CPC classification number: H04W56/0045 , H04J11/0069 , H04W52/0216 , H04W72/0413 , H04W92/10 , Y02D30/70
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.
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公开(公告)号：US20230156593A1
公开(公告)日：2023-05-18
申请号：US18156738
申请日：2023-01-19
Applicant: InterDigital Technology Corporation
Inventor： Mohammed Sammour , Arty Chandra , Jin Wang , Shankar Somasundaram
CPC classification number: H04W52/0206 , H04W52/0216 , H04W52/0229 , H04W72/20 , 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.
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公开(公告)号：US20220417940A1
公开(公告)日：2022-12-29
申请号：US17903761
申请日：2022-09-06
Applicant: InterDigital Technology Corporation
Inventor： Diana PANI , Christopher R. CAVE , Paul MARINIER
Abstract: A wireless transmit/receive unit (WTRU) may periodically transmit control information in slots. The control information may include channel quality indicators (CQIs) for a plurality of cells. In response to expiration of a timer for a first cell of the plurality of cells or in response to a received layer 2 (L2) message associated with the first cell, the transmission of the control information including the CQIs may be ceased for the first cell and the periodic transmission of the control information may continue for a second cell of the plurality of cells.
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