Abstract: The disclosure provides a method and a device used in a node for wireless communication. A first node first transmits a first sequence and a first radio signal, at least one of the first sequence or the first radio signal carrying a target identifier, then monitors a first type of information in a first time window, and finally transmits a second sequence and a second radio signal when no feedback is detected for the first sequence and the first radio signal in the first time window; wherein at least one of the second sequence or the second radio signal carries the target identifier. Through the above design, the disclosure realizes re-transmissions of a preamble and information included in a Message A in 2-step random access scenarios, thereby improving the spectrum efficiency and improving the performance of transmission of the Message A in 2-step random access scenarios.

Abstract: The present disclosure provides method and device for wireless communications in sidelink. A first node receives a first signaling and a first radio signal, the first signaling indicating a first priority; determines whether to transmit a second signaling jointly according to a current value of a first counter and the first priority; when determining to transmit the second signaling, transmits the second signaling and updates the first counter's value with an initial value; when determining not to transmit the second signaling, drops transmitting the second signaling and updates the first counter's value by 1; herein, the first signaling comprises configuration information of the first radio signal. The present disclosure addresses the RLF triggered by the data-transmitting device due to the influence of the Half Duplex and/or transmitting capability of the V2X UE, thus enhancing the link robustness.

Abstract: Discloser a method and a device for wireless communications, including: transmitting a first MAC PDU, the first MAC PDU comprising a first MAC header and a first MAC subPDU, the first MAC subPDU comprising a first MAC sub-header and a first MAC SDU, the first MAC SDU comprising a first PDCP PDU; the first PDCP PDU being a PDCP PDU of a sidelink RB; herein, a target parameter is used for security algorithm of the first PDCP PDU; whether the target parameter is a LCID is related to whether the first node is a generator of the first PDCP PDU; when the first node is the generator of the first PDCP PDU, the target parameter is a LCID; when the first node is not the generator of the first PDCP PDU, the target parameter is not a LCID. The present application can better ensure security using a target parameter.

Abstract: The present application discloses a method and a device in a node for wireless communications. A first receiver detects a first signaling on a first serving cell, the first signaling having a first-type DCI format, the first-type DCI format being used for scheduling PDSCH(s) on at most more than one serving cell; and a first transmitter, generates K HARQ-ACK bit(s) for scheduling of the first signaling; where the first serving cell is one of N serving cells, N being greater than 1, where each serving cell among the N serving cells is configured with the first-type DCI format; K is dependent on a configuration for the first-type DCI format on each serving cell among the N serving cells.

Abstract: The present application provides a method and device for wireless communications. The first node transmits a first radio signal, the first radio signal carries a first data unit; receives a first status report, the first status report indicates whether the first data unit set is successfully received; maintains a first variable of the first data unit; maintains a second variable; herein, the first status report indicates a negative confirmation for the first data unit; the maintaining a first variable of the first data unit comprises: when the first data unit is considered a first retransmission, setting a value of a first variable of the first data unit to 0; the maintaining a second variable comprises: when all conditions in the first condition set are met, a value of the second variable being increased by 1. The present application effectively monitors radio link.

Abstract: A method and a device for sidelink wireless communications are disclosed by the present disclosure. A first node receives a third radio signal and a first radio signal set, the third radio signal comprising first information; herein, the first information comprises a node ID group and a first configuration; the node ID group comprises Q node IDs, Q being a positive integer greater than 1; the first configuration comprises a first parameter set; one of the Q node IDs is used for identifying the third radio signal's transmitter; the first parameter set is used for configuring RB of the first node; a transmitter of the first radio signal set is identified by one of the Q node IDs; or transmitters of Q1 radio signals in the first radio signal set are respectively identified by Q1 node IDs out of the Q node IDs.

Abstract: The present application provides a method and device for wireless communications. A first node receives a first data unit at a MAC sublayer; receives a first signaling, the first signaling indicates a first time-domain resource, the first time-domain resource is reserved for retransmission of a first MAC PDU, the first MAC PDU comprises the first data unit; wherein a first time length is a length of a time interval between a reception of the first data unit and the first time-domain resource, whether to transmit first control information depends on a size relation between the first time length and a first time threshold; the first control information is used to indicate dropping retransmission of the first MAC PDU. The present application can effectively improve radio efficiency, reduce transmission delay, and reduce power consumption of the UE.

Abstract: The present disclosure provides a method and device in a node used for wireless communications. A first node receives a first signaling; and transmits a first signal; the first signaling is used for determining configuration information of the first signal; the first signaling is used for determining a first information unit, the first information unit comprises a first field, the first field in the first information unit indicates a first reference-signal resource, and the first reference-signal resource is used for determining a spatial-domain filter of the first signal; a first power control parameter group is used for determining transmission power of the first signal. The above method unifies Uplink beam management mechanism and Downlink beam management mechanism, and solves the power control problem of Uplink transmission under a unified beam management mechanism.

Abstract: A method and a device are provided in a UE and a base station for wireless communication. The UE receives a first signaling, and operates a first radio signal in K time domain resource(s). The first signaling is used for determining the K time domain resource(s), K is a positive integer; the first radio signal carries a first bit block, a first time-domain-resource size and a target parameter are used for determining the size of the first bit block, at least one of the K time domain resource(s) is used for determining the first time-domain-resource size; the target parameter is a first or a second parameter; whether the target parameter is the first parameter or the second parameter is related to the first time-domain-resource size, or, whether the target parameter is the first parameter or the second parameter is related to the K; the operating action is transmitting or receiving.

Abstract: The present disclosure provides a method and device used in communication node for wireless communication. The communication node first receives first information on a first carrier, the first information being used for determining a first time interval; then receives a first reference signal in a first time window on a second carrier; the first time window is one of X time windows; each of the X time windows belongs to the first time interval, X being a positive integer greater than 1; at least one of a physical-cell identifier to which a transmitter of the first reference signal belongs, a position of frequency-domain resources occupied by the first reference signal in frequency domain or a position of the first time interval in time domain is used for determining the first time window out of the X time windows. The present disclosure reduces interference and overhead.

Abstract: The present disclosure provides a method and device in a node for wireless communications. A first node receives a first signaling; and operates a first signal group. The first signaling is used for determining a first reference-signal-resource set; a first parameter-group set comprises a positive integer number of parameter group(s), any parameter group in the first parameter-group set is used for the operating action of a signal in the first signal group; any reference signal resource in the first reference-signal-resource set is used for determining a parameter group in the first parameter-group set. The above method unifies beam management mechanisms for both Uplink and Downlink, which improves performance of Uplink transmission and reduces corresponding signaling overhead and delay.

Abstract: A first receiver receives a first information block and a first signaling, the first information block is used to determine a first time-frequency resource pool, the first signaling comprises a first field, the first signaling is used to schedule K PDSCHs, K being a positive integer greater than 1 and not greater than N, N being pre-defined or configurable; a first transmitter adopts first transmit power to transmit a first signal, herein, a first resource amount is a number of resource element(s) used for the first signal comprised in the first time-frequency resource pool; at least one of K or N is used to determine a first value, and the first field and the first value are used together to determine a first number of information bit(s); the first number of information bit(s) and the first resource amount are used together to determine the first transmit power.

Abstract: The present application discloses a method and a device for wireless communications, including: receiving a first signaling, the first signaling comprising a first measurement gap configuration, the first measurement gap configuration comprising that frequencies corresponding to measurement gaps are configured as a first frequency set; and determining a first measurement gap set according to the first measurement gap configuration; the first measurement gap set comprising at least two measurement gaps; herein, any transmission or reception for a serving cell on the first frequency set within the first measurement gap set other than RRM measurement and PRS measurement is ignored; any two measurement gaps in the first measurement gap set are orthogonal and non-consecutive in time domain. By determining the first measurement gap set in a rational way, the present application contributes to network optimization and enhances the reliability of communications for avoidance of interruption.

Abstract: The present application discloses a method and a device for wireless communications. A first node receives a first data unit in a first protocol layer, the first protocol layer being a layer above a physical layer; receives a first signaling, the first signaling indicating an initial transmission; and transmits a first radio signal, the first radio signal carrying a first MAC PDU, the first signaling being used to schedule the first radio signal; herein, a first time length is equal to a time interval length between a reception of the first data unit and a transmission of the first radio signal, and whether the first MAC PDU comprises at least partial bits in the first data unit is related to a relative magnitude of the first time length and a first time threshold. The present application can enhance the system capacity and reduce the UE's power consumption.

Abstract: A node first receives a first signal, the first signal is used to determine a first identity, the first identity is associated with a first identifier and a second identifier; and then determines a target identifier from the first identifier or the second identifier; and receives a second signal; the first identifier and the second identifier are respectively associated with a first reference signal resource set and a second reference signal resource set; the first reference signal resource set is associated with the first identity; the first identity is a physical cell identifier of a first cell; a demodulation reference signal of a channel occupied by the second signal is quasi co-located with a target reference signal resource. Application improves the configuration of a serving cell identifier under M-TRP (multi-transmitting and receiving node) to optimize system performance.

Abstract: The present disclosure provides a method and a device in node used for wireless communication. The communication node first performs X first-type measurement(s) in a target time-frequency resource pool, and the X first-type measurement(s) is (are respectively) used for acquiring X first-type measurement value(s); performs a target second-type measurement, the target second-type measurement being used for acquiring a second-type measurement value; and then transmits a first radio signal. Herein, the X first-type measurement value(s) is(are) used for the target second-type measurement, and the target time-frequency resource pool is one of Q alternative time-frequency resource pools related to a Subcarrier Spacing (SCS) of subcarriers occupied by the first radio signal; there exist two of the Q alternative time-frequency resource pools that comprise different time-frequency resources.

Abstract: The present disclosure provides a method and device used in communication node for wireless communication. A communication node receives a first signaling; generates a first data block in a first radio state; when a first condition set is satisfied, transmits a first signal; and when the first condition set is not satisfied, transmits a second signal; the first signaling is used to determine a first threshold, the first threshold being a positive integer; the first condition set comprises a size relation between a first data size and the first threshold; the first data block comprises more than one bit, and the first data size is equal to a number of bits comprised in the first data block; the first signal is used for a first-type Random Access (RA) procedure, and the second signal is used for a second-type RA procedure; the first signal carries a first sequence.

Abstract: The present application discloses a method and device for wireless communications, comprising receiving a first signaling in RRC_CONNECTED state, as a response to receiving the first signaling, executing a first operation set, entering into RRC_INACTIVE state; receiving data through a first radio bearer in RRC_INACTIVE state; wherein the first operation set comprises storing first information in a first inactive context, the first information comprises a first key, and the first key is used to encrypt the first signaling; whether the first information comprises a header compression state for the first radio bearer is related to a type of the first radio bearer; when the first radio bearer is not a multicast radio bearer, the first information comprises a header compression state for the first radio bearer. The method proposed in the present application can ensure the quality of service reception.

Abstract: The present disclosure provides a method and a User Equipment (UE) supporting transmission power adjustment. The UE receiving a first signaling; and transmitting a first radio signal; wherein, a first modulation symbol sequence is used to generate the first radio signal, the first modulation symbol sequence employs a target waveform, a first bit block is used to generate the first modulation symbol sequence, the first signaling is used to determine the target waveform out of X waveforms, the X is a positive integer greater than or equal to 2, a transmitting power of the first radio signal is a first power, the target waveform is used to determine an upper bound of the first power. The method can adjust the UE transmitting power according to the waveform of the uplink transmission, thus reducing the power loss of the UE or improving the coverage performance of the uplink transmission.

Abstract: The present disclosure provides a method and a device in a UE and a base station for wireless communication. The UE receives a first signaling in a first resource element set and a first radio signal. The first resource element set determines a first information set out of M information sets; wherein M is equal to 2; the first resource element set comprises a positive integer number of resource element(s); any information set of the M information sets comprises a positive integer number of information element(s); any information element in the M information sets is a transmission configuration indication state; any information element of the integer number of information element(s) comprises a first type index and a second type index set, a second type index set comprises one second type index or multiple second type indices. The above method helps reduce overhead for scheduling signaling.