-
公开(公告)号:US20230413374A1
公开(公告)日:2023-12-21
申请号:US18458429
申请日:2023-08-30
Applicant: InterDigital Patent Holdings, Inc.
Inventor: Allan Y. TSAI , Guodong ZHANG , Qing LI , Lakshmi R. IYER , Yifan LI , Joseph M. MURRAY , Pascal M. ADJAKPLE
CPC classification number: H04W76/27 , H04W74/0833
Abstract: The present application describes a WTRU including a non-transitory memory including instructions stored thereon for re-establishing a remote radio control (RRC) connection with a base station. The apparatus also includes a processor capable of executing instructions of determining, based upon a measurement in an active downlink bandwidth part (DL BWP), to initiate a random access channel (RACH) procedure. The processor also executes instructions of switching to a default uplink bandwidth part (UL BWP). The processor also executes instructions of initiating the RACH procedure. The process further executes instructions of transmitting a RA preamble using one of the RACH resources configured for the default UL BWP. The processor even further executes instructions of receiving a RA response. The processor yet even further executes instructions of switching from the default UL BWP to either an active UL BWP or another active UL BWP after re-establishing the RRC connection.
-
公开(公告)号:US20230327723A1
公开(公告)日:2023-10-12
申请号:US17998526
申请日:2021-05-14
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor: Kyle PAN , Patrick SVEDMAN , Guodong ZHANG , Mohamed M. AWADIN , Pascal ADJAKPLE , Yifan LI , Allan TSAI , Zhuo CHEN
CPC classification number: H04B7/0617 , H04W56/0015
Abstract: Synchronization Signal Block (SSB) management for new radio may be achieved through indication of a maximum number of beams for beamforming and/or through mechanisms for handling plural candidate SSBs. For example, a User Equipment (UE) may search a Primary Synchronization Signal (PSS) and/or a Secondary Synchronization Signal (SSS) to decode a Physical Broadcast Channel (PBCH) payload comprising and indication of a maximum number of beams (Q) supporting beamforming, e.g., in new radio unlicensed spectrum, and determine, based the indicator, Quasi Co-Located (QCL) Synchronization Signal Blocks (SSBs). Similarly, a UE may determine, from the PBCH payload, a primary DeModulation Reference Signal (DMRS) from which the UE may determine selection bits for an SSB. The UE may also determine, based a frequency range in use, to perform a secondary detection and based on the secondary detection, alter selection bits for accessing the SSB index.
-
公开(公告)号:US20230309116A1
公开(公告)日:2023-09-28
申请号:US18040838
申请日:2021-08-06
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor: Kyle PAN , Guodong ZHANG , Patrick SVEDMAN , Yifan LI , Pascal ADJAKPLE , Allan TSAI , Mohamed AWADIN
IPC: H04W72/25 , H04W72/1263 , H04L5/00
CPC classification number: H04W72/25 , H04W72/1263 , H04L5/001 , H04L5/0094 , H04L5/0098
Abstract: Cross scheduling of a component earner for vehicle sidelink communications may be achieved by explicit configuration, implicit configuration, or a combination thereof. A user equipment, UE, may be configured with a resource pool configuration, for example, pertaining to multiple resource pools, resource group partitions, and/or component carrier groups. The UE may be configured to use fields such as a Carrier Indication Field and/or a Carrier Group Indication Field contained in a Physical Sidelink Control Channel, PSCCH. The UE may use the resource pool configuration in combination with where the UE is able to decode the PSCCH, with or with the CIF and/or CGIF, to determine a scheduled Component Carrier, CC, for sidelink communications.
-
公开(公告)号:US20230140213A1
公开(公告)日:2023-05-04
申请号:US17906488
申请日:2021-03-19
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor: Mohamed M. AWADIN , Patrick SVEDMAN , Qing LI , Yifan LI , Kyle PAN , Allan TSAI , Pascal ADJAKPLE , Joseph MURRAY , Rocco DI GIROLAMO , Zhuo CHEN , Guodong ZHANG
IPC: H04W72/1263 , H04L1/08 , H04W72/231
Abstract: Blind coverage for wireless devices is enhanced varying one or more transmission characteristics of a repeated transmission sent or received by apparatuses, where the repeated transmission includes, for example a Physical Downlink Shared CHannel (PDSCH) and/or a Physical Uplink Shared CHannel (PUSCH) transmissions. Varied characteristics may include a start time for each repetition, a duration for each repetition, a start frequency for each repetition, a bandwidth of each repetition, a number of repetitions for each subframe, and/or a number of repetitions for each slot. Repetitions may be within a Bandwidth Part (BWP) or span multiple BWPs. Repetitions may vary from one to another in start time, start frequency, duration, bandwidth, and slot and subframe patterns. Higher level signalling, such as Radio Resource Control (RRC) signalling may be used to control the inclusion or omission of a DeModulation Reference Signal (DMRS) in repeated transmissions.
-
公开(公告)号:US20220377790A1
公开(公告)日:2022-11-24
申请号:US17765890
申请日:2020-10-02
Applicant: InterDigital Patent Holdings, Inc.
Inventor: Mohamed AWADIN , Qing LI , Lakshmi R. IYER , Yifan LI , Allan Y. TSAI , Pascal M. ADJAKPLE , Patrick SVEDMAN , Guodong ZHANG
Abstract: A wireless device, such as user equipment (UE) or other apparatus, like may use a transparent mode operation in which the device is not aware of the operation mode of abase station, such as a gNB or other transmission and receive point (TRP), via the use of configurations for Frame Based Equipment (FBE) and Load Based Equipment (LBE) operating modes. A base station may initiate a Channel Occupancy Time (COT) that is an FBE COT or an LBE COT, in which the wireless device follows FBE or LBE procedures accordingly. A variety of criteria may be applied in determining whether to use FBE or LBE procedures, and to switch between them. A network may use indicate the intention to switch operation mode and may do so via implicit or explicit indications. Similarly, a wireless device may autonomously switch operation mode, and may indicate the selected mode to the network.
-
公开(公告)号:US20220295589A1
公开(公告)日:2022-09-15
申请号:US17635438
申请日:2020-08-14
Applicant: InterDigital Patent Holdings, Inc.
Inventor: Allan Y. TSAI , Patrick SVEDMAN , Qing LI , Guodong ZHANG , Lakshmi R. IYER , Yifan LI , Mohamed AWADIN
Abstract: Methods, systems, and devices may support BFD with multi-TRP transmission or support BFR with multi-TRP transmission, among other things. For BFD with multi-TRP transmission, there may be the explicit configuration or implicit configuration. With regard to BFR with multi-TRP transmission there may: BFR using contention-free PRACH, BFR using PUCCH, BFR using contention-free 2-step RACH, or BFR using PUSCH.
-
公开(公告)号:US20210367716A1
公开(公告)日:2021-11-25
申请号:US17392989
申请日:2021-08-03
Applicant: InterDigital Patent Holdings, Inc.
Inventor: Xiaofei WANG , Fengjun XI , Hanqing LOU , Robert L. OLESEN , Frank LA SITA , Guodong ZHANG
Abstract: A method performed by a STA of a WLAN may comprise receiving a trigger frame, from an AP. The trigger frame may be a trigger for uplink MU data transmission and the trigger frame may indicate a traffic priority. In response to receiving the trigger frame, the STA may transmit at least one A-MPDU comprising a plurality of data units. At least one of the plurality of data units may have a priority greater than the indicated traffic priority and another one of the plurality of data units may have a priority equal to the indicated traffic priority.
-
公开(公告)号:US20190053143A1
公开(公告)日:2019-02-14
申请号:US16160578
申请日:2018-10-15
Applicant: InterDigital Patent Holdings, Inc.
Inventor: Guodong ZHANG , Lei WANG , Xiaofei WANG , Joseph S. Levy , Robert L. Olesen
Abstract: A method for balancing load on a network may comprise determining that a first AP serving traffic on a 5 Ghz frequency band is within range of a STA. The STA may receive, from the first AP, a first allowed traffic bitmap indicating first allowed traffic, wherein the first allowed traffic bitmap indicates whether AC_VO frames, AC_VI frames and at least one other frame type is allowed by the first AP. The STA may receive a second allowed traffic bitmap concerning a second AP. The STA may also receive, from the first AP, access control information of the second AP. The STA may transmit an association request to a selected one of the first AP or second AP, based on the received first allowed traffic bitmap, the received second allowed traffic bitmap and the access control information. Once associated, traffic may flow between the selected AP and the STA.
-
公开(公告)号:US20180302194A1
公开(公告)日:2018-10-18
申请号:US15766201
申请日:2016-10-10
Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
Inventor: Xiaofei WANG , Guodong ZHANG , Joseph S. LEVY
Abstract: A wireless transmit/receive unit (WTRU) communicating in a wireless local area network (WLAN) system may use efficient acknowledgement (ACK) setup and transmission procedures in conjunction with other transmission and power saving techniques, such as target wake time/restricted access window (TWT/RAW), power save multi-poll (PSMP) and/or transmission opportunity (TXOP) mechanisms. In an example, a WTRU may transmit a frame including an indication that a TWT/RAW (or TXOP) period is scheduled, an indication that multi-WTRU acknowledgement (ACK)/block ACK (BA) will be used for acknowledgement, and/or targeted transmission time(s) for the transmission of multi-WTRU ACK/BA frame(s). The WTRU may trigger the start of the TWT/RAW period, and may receive at least one data frame from another WTRU(s). The WTRU may transmit multi-WTRU ACK/BA frame(s) during the targeted transmission time(s) to acknowledge the at least one data frame received from the other WTRU(s).
-
50.
公开(公告)号:US20180227957A1
公开(公告)日:2018-08-09
申请号:US15948869
申请日:2018-04-09
Applicant: InterDigital Patent Holdings, Inc.
Inventor: Hanqing LOU , Guodong ZHANG , Xiaofei WANG , Juan FANG , Oghenekome OTERI , Pengfei XIA , Monisha GHOSH , Robert L. OLESEN
CPC classification number: H04W74/0816 , H04L1/0003 , H04L1/0026 , H04L1/16 , H04L1/1664 , H04L1/1671 , H04L1/1685 , H04L1/1887 , H04L5/0055 , H04W72/0453 , H04W84/12
Abstract: A method and apparatus for supporting UL MU diversity are provided. The method may comprise transmitting a MU RTS frame to a plurality of STAs, the MU RTS frame comprising a plurality of MCS indicators, a plurality of data stream number indicators, an indication of a spatial technology, and a duration field. The MU RTS frame solicits clear to send (CTS) frame responses from a plurality of STAs and simultaneous UL OFDMA transmissions may be received in accordance with the MCS indicators, the data stream number indicators and the indicated spatial technology. An AP may transmit another frame comprising UL transmission information for transmission of data frames by the plurality of STAs. The AP may receive from the plurality of STAs, the data frames simultaneously and may additionally transmit acknowledgements of the received data frames to the plurality of STAs.
-
-
-
-
-
-
-
-
-