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公开(公告)号：US20240114533A1
公开(公告)日：2024-04-04
申请号：US18261692
申请日：2022-01-14
申请人： MEDIATEK INC.
发明人： Lung-Sheng TSAI , Tao CHEN
IPC分类号： H04W72/40
CPC分类号： H04W72/40
摘要： A method for sidelink communication is provided. The method is applied to a first UE in a sidelink communication to transmit signals to a second UE which is a peer receiving (peer-Rx) UE of the first UE. The method includes the following steps: maintaining a counter to record how many periodic reservations remain to be used for sidelink signal transmission, wherein the periodic reservations are associated with a reservation period and each periodic reservation is associated with at least one sidelink resource; determining whether a resource re-selection condition is met before the counter counts to 0, wherein the resource re-selection condition is associated with status of receiving responses corresponding to a subset of the sidelink resources; and reselectting at least one new sidelink resource for next periodic reservations when the resource re-selection condition is met.
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公开(公告)号：US20210282197A1
公开(公告)日：2021-09-09
申请号：US16523721
申请日：2018-07-26
申请人： MEDIATEK INC.
发明人： Zhixun TANG , Ato YU , Tao CHEN , Chun-fan TSAI
摘要： Aspects of the disclosure can provide a method and an apparatus for Cell Global Identifier (CGI) reading in a New Radio (NR) system. The method can include receiving a request over a serving cell to report Cell Global Identifier (CGI) information of a target cell to a network node, and decoding system information to acquire the CGI information of the target cell by using Synchronization Signal Block (SSB) and Remaining Minimum System Information (RMSI) occasions in Discontinuous Reception (DRX) off duration of the serving cell, using at least one autonomous gap in data reception and transmission of the serving cell, or using at least one specific gap to interrupt data reception and transmission in DRX on durations of the serving cell. Subsequently, the CGI information of the target cell can be transmitted to the network node.
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公开(公告)号：US20220123904A1
公开(公告)日：2022-04-21
申请号：US17424667
申请日：2019-09-25
申请人： MEDIATEK INC.
发明人： Chien-Yi WANG , Ju-Ya CHEN , Tao CHEN
IPC分类号： H04L5/00
摘要： Various examples and schemes pertaining to shared negative acknowledgement (NACK) for groupcast and multicast in New Radio (NR) vehicle-to-everything (V2X) communications are described. An apparatus as a source user equipment (UE) transmits data to two or more destination UEs of a plurality of destination UEs via groupcast or multicast with hybrid automatic repeat request (HARQ). The apparatus then receives a NACK on a single time-frequency resource from at least one of the two or more destination UEs. The single time-frequency resource is shared by the plurality of destination UEs to transmit the NACK to the source UE.
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4.发明公开公开(公告)号：US20230354420A1
公开(公告)日：2023-11-02
申请号：US18307168
申请日：2023-04-26
申请人： MEDIATEK INC.
发明人： Jing-Wei CHEN , Tao CHEN , Lung-Sheng TSAI
IPC分类号： H04W74/08 , H04W72/25 , H04W72/1263 , H04W72/51 , H04W72/542
CPC分类号： H04W74/0808 , H04W72/25 , H04W72/1263 , H04W72/51 , H04W72/542
摘要： A method is provided, which includes conducting, at a first user equipment (UE), a listen-before-talk (LBT) process on an unlicensed band to obtain a channel occupancy time (COT) for a sidelink transmission; determining, at the first UE, based on channel sensing executed on the unlicensed band, a group of candidate sidelink resources on the unlicensed band, where each candidate side link resource is within a sidelink resource selection window, and does not have reservation that is associated with a Reference Signal Received Power (RSRP) higher than a predetermined resource exclusion RSRP threshold; selecting, at the first UE, a sidelink resource from the group of candidate sidelink resources; and performing, on the selected sidelink resource, the sidelink transmission from the first UE to a second UE, within the obtained COT. Multiple Sidelink Control Information (SCI) messages are decoded at the first UE on a single Physical Sidelink Control Channel (PSCCH) resource.
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公开(公告)号：US20230300885A1
公开(公告)日：2023-09-21
申请号：US18180527
申请日：2023-03-08
申请人： MEDIATEK INC.
发明人： Jing-Wei CHEN , Tao CHEN , Lung-Sheng TSAI , Jun-Qiang CHENG , Yih-Shen CHEN
CPC分类号： H04W74/0816 , H04W72/02
摘要： A method can include determining candidate sidelink resources by a user equipment (UE) for sidelink transmission on an unlicensed band from a sidelink resource selection window based on results of a sensing operation on the unlicensed band during a sidelink sensing window, selecting a sidelink resource from the candidate sidelink resources, performing a listen-before-talk (LBT) process on the unlicensed band to obtain a channel occupancy time (COT), and performing a sidelink transmission within the COT using the first sidelink resource. The selection of the sidelink resource can be based on an LBT time that is a predicted duration of a random backoff process of the first LBT process. Also, the first sidelink resource can be selected from the candidate sidelink resources without randomization.
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公开(公告)号：US20230239793A1
公开(公告)日：2023-07-27
申请号：US18003772
申请日：2021-08-03
申请人： MEDIATEK INC.
发明人： Guan-Yu LIN , Tao CHEN , Ahmet Umut UGURLU , Ming-Yuan CHENG
IPC分类号： H04W52/02
CPC分类号： H04W52/0229 , H04W52/0216 , H04W52/0219
摘要： A method for supporting Sidelink (SL) Discontinuous Reception (DRX) operation is provided. A User Equipment (UE) maintains SL DRX configuration which includes one of a transmission pattern and a reception pattern that the UE expects to perform transmission and reception to a peer UE. The UE exchanges the SL DRX configuration with the peer UE. Based on the exchange of the SL DRX configuration, the UE determines when to perform transmission or reception to or from the peer UE during an SL DRX operation. Based on the determination, the UE performs transmission or reception to or from the peer UE during the SL DRX operation.
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公开(公告)号：US20230379947A1
公开(公告)日：2023-11-23
申请号：US18247522
申请日：2021-09-24
申请人： MEDIATEK INC.
发明人： Lung-Sheng TSAI , Tao CHEN
IPC分类号： H04W72/40
摘要： A method for allocating sidelink resource is provided. The method is applied to a first UE in a sidelink communication to transmit signal to a second UE which is a peer receiving (peer-Rx) UE of the first UE. The method includes the steps of maintaining, a counter to record how many remaining periodic reservations of sidelink resource to be used for sidelink signal transmission, wherein the periodic reservations are associated with a reservation period; receiving, in the sidelink communication, assistance information from the second UE or from a third UE which is not the peer-Rx UE of the first UE; and determining, whether to reselect a new sidelink resource different from the sidelink resource comprising the remaining periodic reservations according to the receiving assistance information even if the counter is greater than 0, to transmit signal to the second UE.
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公开(公告)号：US20230300886A1
公开(公告)日：2023-09-21
申请号：US18180696
申请日：2023-03-08
申请人： MEDIATEK INC.
发明人： Jing-Wei CHEN , Tao CHEN , Lung-Sheng TSAI , Jun-Qiang CHENG , Yih-Shen CHEN
CPC分类号： H04W74/0816 , H04W72/02
摘要： A method can include determining candidate sidelink resources by a user equipment (UE) for sidelink transmission on an unlicensed band from a sidelink resource selection window based on results of a sensing operation on the unlicensed band during a sidelink sensing window, selecting a sidelink resource from the candidate sidelink resources, performing a listen-before-talk (LBT) process on the unlicensed band to obtain a channel occupancy time (COT), and performing a sidelink transmission within the COT using the first sidelink resource. The selection of the sidelink resource can be based on an LBT time that is a predicted duration of a random backoff process of the first LBT process. Also, the first sidelink resource can be selected from the candidate sidelink resources without randomization.
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9.发明申请公开(公告)号：US20200015239A1
公开(公告)日：2020-01-09
申请号：US16489345
申请日：2017-10-11
申请人： MEDIATEK INC.
发明人： Jiann-Ching GUEY , Tao CHEN , Yu-Chuan LIN , Weidong YANG
摘要： Various solutions for handling synchronization signal block with respect to user equipment (UE) and network apparatus in mobile communications are described. A UE may receive a synchronization signal block (SS block) from a network apparatus. The UE may detect a transmission beam of the network apparatus according to the SS block. The SS block may comprise a first synchronization signal, a second synchronization signal and a reference signal for detecting the transmission beam. The first synchronization signal may be a primary synchronization signal (PSS), the second synchronization signal may be a secondary synchronization signal (SSS), and the reference signal may be a demodulation reference signal (DMRS). The SS block may further comprise a broadcast channel and wherein the DMRS is used for demodulation of the broadcast channel.
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公开(公告)号：US20240015766A1
公开(公告)日：2024-01-11
申请号：US18247528
申请日：2021-09-28
申请人： MEDIATEK INC.
发明人： Lung-Sheng TSAI , Tao CHEN
IPC分类号： H04W72/25 , H04W72/0446 , H04W72/566
CPC分类号： H04W72/25 , H04W72/0446 , H04W72/566
摘要： A method for sidelink communication is provided. The method is applied to a peer-receiving UE (peer-Rx UE) in a sidelink communication. The method includes the steps of decoding a first sidelink control information (SCI) in a first time slot from a peer-transmitting UE (peer-Tx UE) successfully, wherein the first SCI provides a resource allocation information that indicates one or more time slots allocated for one or more second SCIs to be transmitted by the peer-Tx UE; performing SCI decoding in the one or more time slots allocated for the one or more second SCIs; and transmitting assistance information when a trigger condition is met, wherein the trigger condition is based on the performing SCI decoding in the one or more time slots allocated for the one or more second SCIs.
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