Abstract: The present disclosure provides a method and device in a node for wireless communications. A first node first receives first information, the first information being used for determining a target carrier; then detects a first signaling in a first candidate resource set; and when the first signaling is detected, operates a first signal in a first carrier, and the first signaling is used for determining time-frequency resources occupied by the first signal; the first signaling carries a first identifier, and the first identifier is used for identifying the first carrier; the first candidate resource set comprises a positive integer number of candidate resource group(s), and the first signaling occupies a candidate resource group in the first candidate resource set. The present disclosure configures different Carrier Indicator Fields (CIFs) for the first carrier to optimize the mode of blind detection, thus improving performance of the system.

Abstract: A method and a device in a node for wireless communications. A first node monitors or drops monitoring a first signal in a first resource block; and transmits a second signal in a second resource block. The second resource block corresponds to a first index; the first resource block is reserved for a HARQ-ACK for a bit block set transmitted in a third resource block; when a first condition set is fulfilled, a spatial relation of the second signal is unrelated to the first index; when the first condition set is unfulfilled, the first index is used for determining the spatial relation of the second signal; the first condition set relates to whether the first signal is conveyed in the first resource block. The method above provides an easy implementation of beamforming in a V2X system, which optimizes gains of beamforming and also prevents complicated signaling interaction.

Abstract: The present disclosure provides a method and device in a node for wireless communications. A first node transmits a first sequence and a first radio signal, the first sequence is associated with the first radio signal; and receives a second radio signal; the first radio signal is used to carry a target identifier; the second radio signal comprises a first information block, the first information block comprises a first field and a second field, the second field is used to determine a first value, and the first value is a non-negative integer; the first field and a value interval to which the first value belongs are used to determine whether the second radio signal comprises a second information block. Through the re-analyzing of the existing signalings, the present disclosure avoids extra signaling overhead, realizes contention resolution of 2-step RACH, and supports flexible switching between 2-step RACH and 4-step RACH.

Abstract: The disclosure provides a method and a device for wireless communication. The method includes: determining a target identifier, and receiving a first signal, the first signal carrying first information; wherein the first information comprises information of an access stratum, the first information is used for indicating a first identifier set, and the first identifier set comprises a positive integer number of identifiers; the first identifier set is associated to second information; a second signal carries the second information, and the second information comprises information of a non-access stratum; whether the first identifier set comprises the target identifier is used for determining whether the second information is valid. The disclosure determines the validity of the second information through reasonably determining the target identifier and the first identifier set, thus increasing the reliability of the system and saving system resources.

Abstract: A node first receives a first information set, the first information set is used to indicate a first reference signal resource set and a second reference signal resource set; then transmits a target signal, the target signal comprises a second information set; the second information set comprises a first power difference value; the first power difference value is equal to a difference value of a first target power value minus a first reference power value, and the first reference power value is equal to a sum of a first power value and a second power value; the first power value is associated with the first reference signal resource set, and the second power value is associated with the second reference signal resource set. This improves the reporting method of power headroom when the terminal is configured with multiple reference signal resource sets to improve spectrum efficiency.

Abstract: A first node receives a target signaling, the target signaling indicating at least one symbol of first type, the at least one symbol of the first type including a downlink symbol for uplink transmission in a first sub-band that is indicated by TDD UL-DL configuration; and transmits a first signal; the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal and the second sub-signal being two hops for the first signal, respectively; the first signal occupies a target symbol set in time domain; a starting RB occupied by the second sub-signal is a target RB, where a frequency-domain location of the target RB depends on a first integer, a distribution of the symbols of the first type in the target symbol set is used to determine the first integer. This application improves the uplink frequency hopping transmission procedure, and improves the anti-interference ability of signals.

Abstract: The communication node receives a first information block, the first information block being used to determine a first resource block; and transmits a first signaling in the first resource block, the first signaling being used to indicate a first index; the first index is one of multiple candidate indexes, and any of the multiple candidate indexes is a non-negative integer; any of the multiple candidate indexes corresponds to at least one reference signal resource, and an uplink transmission being associated with a reference signal resource corresponding to the first index is non-synchronised. This application proposes an uplink timing recovery scheme based on reporting for the problem that the UE cannot recover the uplink timing in time, which triggers uplink timing recovery in a timely manner via UE reporting of the non-synchronisation in uplink timing.

Abstract: The present disclosure provides a method and device in a node used for wireless communications. A first node first receives a first signaling, receives a first signal in a first time-frequency resource set, and the first time-frequency resource set belongs to a first time-frequency resource pool; then transmits a first information set in a target time-frequency resource set; the first field in the first signaling is used to indicate the target time-frequency resource set out of the second time-frequency resource set and the third time-frequency resource set; the first information set is used to indicate whether the first signal is correctly received; the second time-frequency resource set is related to a location of the first time-frequency resource set in the first time-frequency resource pool. The application improves the transmission efficiency of the sidelink feedback channel to improve the spectrum efficiency on sidelink.

Abstract: The present disclosure provides a method and a device in a node used for wireless communications. A first node firstly receives a first signaling and a second signaling, the first signaling indicating a first zone size and a second zone size, while the second signaling indicating a first radio resource pool and a second radio resource pool; and then determines according to the current position whether to transmit a first signal in a first radio resource set; when the first radio resource set is associated with the first radio resource pool, the first zone size is used to determine the current position. By respectively associating the first zone size and the second zone size with the first radio resource pool and the second radio resource pool, the present disclosure manages to optimize the determination of feedback transmission in sidelink, which in turn improves the spectrum efficiency of sidelink transmission.

Abstract: A first node receives a first signaling and transmits a first signal. The first signaling indicates scheduling information of the first signal; the first signal comprises a first sub-signal and a second sub-signal; a first field and a second field of the first signaling are respectively used to determine antenna ports for transmitting the first sub-signal and the second sub-signal; a payload of bit(s) in the second field of the first signaling is related to K1 candidate integers; the relationship between the payload of the bit(s) in the second field of the first signaling and the K1 candidate integers is related to whether a time-domain resource occupied by the first sub-signal overlaps with a time-domain resource occupied by the second sub-signal. The above method meets different requirements for the number of bits in the first field and the second field for different multiplexing methods.

Abstract: The node firstly receives a first information set, the first information set indicating a first reference signal resource set and a second reference signal resource set; and then transmits a target signal, the target signal comprising a second information set; the second information set comprises a first power difference, or comprises a second power difference and a third power difference; the first power difference is associated with the first reference signal resource set or the second reference signal resource set; the second power difference and the third power difference are respectively associated with the first reference signal resource set and the second reference signal resource set; the target signal is used to determine whether the second information set comprises the first power difference or comprises both the second power difference and the third power difference. This application improves uplink power control for multi-panel terminals to increase system flexibility.

Abstract: The present application discloses a method and a device in a communication node for wireless communications. The communication node receives a first signaling, the first signaling indicating a first condition set, the first condition set including multiple triggering conditions; and as a response to a first triggering condition being satisfied, disconnects from a first serving cell and applies a first candidate configuration, the first candidate configuration including configuration information for a second serving cell, the first serving cell and the second serving cell each being a SpCell; the first triggering condition being satisfied occurs after receiving the first signaling, the first triggering condition is a triggering condition in a first condition subset, and the first condition subset is a proper subset of the first condition set; the first condition subset is related to the first serving cell.

Abstract: The present application discloses a method and device for wireless communications, comprising transmitting a first signal, and the first signal indicating a request for a first system information block; receiving a first system information block transmitted by broadcast; wherein the first node is in RRC_CONNECTED state; whether the first signal is a signal transmitted on a PRACH or an RRC message occupying a CCCH in a random access procedure or an RRC message occupying a DCCH is dependent on a first parameter set, at least a latter of a downlink reception time and an uplink transmission time is dependent on the first parameter set. The present application can save more electricity through the first signal.

Abstract: The present disclosure provides a method and a device for use in wireless communication node. The communication node transmits first information; herein, for a given SCS, the communication node assumes that X1 PRB(s) is (are) comprised in frequency-domain resources that can be occupied by the communication node for transmissions, X1 being a positive integer, and the X1 PRB(s) occupies (occupy) consecutive frequency-domain resources; a position of the X1 PRB(s) in frequency domain is related to at least one of whether the communication node is in coverage or a synchronization reference source selected by the communication node; the first information is used to indicate a position of the X1 PRB(s) in frequency domain, and the first information is transmitted via an air interface. The method in the present disclosure reduces interference and improves link and system performance.

Abstract: Present application discloses a method and a device in a communication node for wireless communications. The communication node receives a first message, the first message configuring uplink grants, any two uplink grants configured by the first message being temporally non-overlapped; and receives a second message, the second message indicating a first symbol set; and transmits first control information in a first uplink grant, the first control information indicating whether K2 uplink grant(s) is(are) unused, the first uplink grant and the K2 uplink grant(s) being configured by the first message, the K2 uplink grant(s) being after the first uplink grant; the K2 uplink grant(s) is(are) dependent on at least a former of a time-domain location of the uplink grants configured by the first message or a location of the first symbol set; K2 being a positive integer. The scheme improves the effectiveness of information indicated by the first control information.

Abstract: The present disclosure discloses a method and device in UE and base station used for wireless communications. A UE transmits a first radio signal, the first radio signal indicating a first reference signal out of M reference signals; and monitors a first signaling in each of W time-frequency resource block(s). Herein, at least one reference signal of the M reference signals is transmitted by a first serving cell, and the first serving cell is not added by the UE; the UE assumes that a transmission antenna port of the first signaling is Quasi-Co-Located with a transmission antenna port of the first reference signal; W is a positive integer, and M is a positive integer greater than 1. Such method can be employed to avoid delay and service interruption brought about by cell handover.

Abstract: The present application provides a method and device for wireless communications. A communication node receives a first message, the first message is configured with an uplink grant, and any two uplink grants configured by the first message are non-overlapping in time; transmits first control information in a first uplink grant, the first control information indicates whether a target uplink grant is unused, the first uplink grant and the target uplink grant are configured by the first message, the target uplink grant is after the first uplink grant; a candidate for an indication of the first control information for the target uplink grant depends on a first condition set; when the first condition set is met, a candidate for an indication of the first control information for the target uplink grant comprises unused and not unused. The method improves the resource utilization rate and avoids the interference.

Abstract: The node firstly receives a first information set, the first information set indicating a first reference signal resource set; and then transmits a second information set; the second information set includes a first power difference and a second power difference; the first power difference is equal to a difference obtained by subtracting a first target power value from a first power value, and the second power difference is equal to a difference obtained by subtracting a second target power value from a second power value; the first target power value and the second target power value are both associated to a first reference signal resource in the first reference signal resource set; the first target power value and the second target power value are for a same cell. This application improves uplink power control under multi-panel terminals to increase system flexibility.

Abstract: A first node receives a first message, the first message indicating entering RRC_Inactive state; and determines whether any condition in a first condition set is satisfied in RRC_Inactive state; and performs a first action as a response to that any condition in the first condition set is satisfied; herein, the first message indicates at least one radio bearer, and the first message is used to determine whether the first action is entering RRC_Idle state or transmitting a second message, the second message being an RRC signaling; the first condition set includes at least a first condition, and at least a channel quality of a first cell being worse than a specific threshold is used to determine whether the first condition is satisfied, the first cell being a serving cell of the first node. This application supports mobility in different scenarios in RRC_Inactive state.

Abstract: The present disclosure provides a method and a device in a base station used for Unlicensed Spectrum. The base station first transmits K1 radio signals in a reference time window and then receives K1 HARQ feedbacks, and performs Q1 energy detections respectively in Q1 time sub-pools on a first frequency sub-band; the K1 HARQ feedbacks are respectively used for determining whether the K1 radio signals are correctly received; a first radio signal is a radio signal of the K1 radio signals, the first radio signal carries part of bits comprised by a first bit block; a first HARQ feedback is used for determining whether the first radio signal is correctly received, HARQ feedback(s) other than the first HARQ feedback among the K1 HARQ feedbacks is(are) used for determining the Q1 time sub-pools. The present disclosure increases the chance of access to Unlicensed Spectrum and the utilization ratio of spectrum resources.