Method and device used in node for wireless communication

Abstract

The present application discloses a method and device used in a node for wireless communication. The method comprises: a node receives a first information block, receives a first PDCCH, and sends a first signal, wherein the first PDCCH is used for triggering sending of the first signal, and the first signal at least comprises a random access preamble; and the node receives a second signal, wherein the second signal is associated with an RA-RNTI, a demodulation reference signal of the second signal and a target reference signal are quasi co-located, the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain, the symbol type of the at least one symbol occupied by the first PDCCH in the time domain relies on the first information block, and the symbol type of the at least one symbol occupied by the second signal in the time domain relies on the first information block. The present application ensures correct reception and improves the reception quality.

Description

A method and device in a node for wireless communication

[0001] This application claims priority to a Chinese patent application filed with the Patent Office of China on February 5, 2024, with application number 202410166688.4 and invention name “A method and device in a node for wireless communication”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly to a transmission scheme and apparatus with flexible transmission direction configuration in wireless communication. Background Art

[0003] The application scenarios of future wireless communication systems are becoming increasingly diverse, and different scenarios place varying performance requirements on the systems. To meet the diverse performance demands of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) Plenary #72 decided to conduct research on New Radio (NR) (or 5G). The WI (Work Item) for New Radio (NR) technology was approved at the 3GPP RAN Plenary #75, initiating NR standardization work. The SI and WI for NR Rel-19 were approved at the 3GPP RAN Plenary #102, including support for sub-band full-duplex. Summary of the Invention

[0004] In existing NR systems, spectrum resources are statically divided into FDD and TDD spectrum. For TDD spectrum, both base stations and user equipment operate in half-duplex mode. This half-duplex mode avoids self-interference and mitigates the impact of cross-link interference, but it also reduces resource utilization and increases latency. To address these issues, supporting flexible duplex modes in either TDD or FDD spectrum is a possible solution.

[0005] The present application discloses a solution to the problem of determining the reference signal in the random access scenario triggered by the PDCCH command in the flexible duplex mode. The flexible duplex mode is only used as a typical application scenario or example; the present application is also applicable to 6G networks or other scenarios facing similar problems (for example, scenarios where the link direction changes, or other scenarios that support multi-level configuration of the transmission direction, or base stations or user equipment with stronger capabilities, such as scenarios that support full-duplex at the same frequency, or for different application scenarios, such as eMBB, URLLC, non-terrestrial networks, synaesthesia integrated networks, smart metasurfaces, and terahertz networks, similar technical effects can also be achieved. In addition, the use of a unified solution for different scenarios (including but not limited to scenarios of eMBB, URLLC, non-terrestrial networks, synaesthesia integrated networks, smart metasurfaces, and terahertz networks) or different application parameters can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in the embodiments of the device used for the first node of the present application can be applied to the device used for the second node in the present application, and vice versa.

[0006] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0007] receiving a first information block, receiving a first PDCCH and sending a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble;

[0008] receiving a second signal, the second signal being associated with the RA-RNTI;

[0009] The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0010] As an embodiment, the target reference signal depends on the relationship between the symbol types corresponding to the first PDCCH and the second signal, avoiding the beam inconsistency caused by the first PDCCH and the second signal corresponding to different symbol types (such as SBFD symbols and non-SBFD symbols), ensuring the accuracy of reception of the second signal, and improving transmission performance.

[0011] According to one aspect of the present application, the above method is characterized in that the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell, and the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0012] According to one aspect of the present application, the above method is characterized in that, when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

[0013] As an embodiment, when the symbol types corresponding to the first PDCCH and the second signal are the same and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH, which ensures good robustness and backward compatibility with minimal changes to the standard.

[0014] According to one aspect of the present application, the above method is characterized in that a second information block is received; wherein, the second signal is scheduled by the PDCCH included in the PDCCH common search space set of type 1, the second information block indicates multiple TCI states, and the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain.

[0015] According to one aspect of the present application, the above method is characterized in that the first information block indicates the configuration information of the first sub-band, the first sub-band is a full-duplex sub-band, and the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band; at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band.

[0016] According to one aspect of the present application, the above method is characterized by sending a third information block; wherein the third information block indicates that the sender of the third information block supports the random access process in symbols for the full-duplex sub-band.

[0017] As an embodiment, a new information block is introduced to indicate support for the random access process in symbols for the full-duplex sub-band, which is beneficial to improving the performance of random access and increasing flexibility; at the same time, it is compatible with existing standards and improves the robustness of the system.

[0018] According to one aspect of the present application, the above method is characterized in that the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

[0019] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0020] Sending a first information block, sending a first PDCCH and receiving a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble;

[0021] sending a second signal, where the second signal is associated with the RA-RNTI;

[0022] The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0023] According to one aspect of the present application, the above method is characterized in that the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell, and the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0024] According to one aspect of the present application, the above method is characterized in that, when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

[0025] According to one aspect of the present application, the above method is characterized in that a second information block is sent; wherein, the second signal is scheduled by the PDCCH included in the PDCCH common search space set of type 1, the second information block indicates multiple TCI states, and the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain.

[0026] According to one aspect of the present application, the above method is characterized in that the first information block indicates the configuration information of the first sub-band, the first sub-band is a full-duplex sub-band, and the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band; at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band.

[0027] According to one aspect of the present application, the above method is characterized by receiving a third information block; wherein the third information block indicates that the sender of the third information block supports a random access procedure in symbols for a full-duplex sub-band.

[0028] According to one aspect of the present application, the above method is characterized in that the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

[0029] The present application discloses a device for a first node used for wireless communication, characterized by comprising:

[0030] A first transceiver receives a first information block, receives a first PDCCH, and sends a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble;

[0031] A first transceiver receives a second signal, where the second signal is associated with the RA-RNTI;

[0032] The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0033] The present application discloses a device for a second node used for wireless communication, characterized by comprising:

[0034] A second transceiver transmits a first information block, transmits a first PDCCH, and receives a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal includes at least a random access preamble;

[0035] A second transceiver sends a second signal, where the second signal is associated with the RA-RNTI;

[0036] The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0037] As an example, the present application has the following advantages but is not limited to:

[0038] Supports random access in full-duplex scenarios, which can further increase uplink coverage and reduce transmission delay;

[0039] Improving transmission reliability and robustness helps adapt to changing scenarios;

[0040] Reduce resource waste and redundancy, and lower network costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0042] FIG1 shows a flowchart of a first information block, a first PDCCH, a first signal, and a second signal according to an embodiment of the present application;

[0043] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0044] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0045] FIG4 shows a schematic diagram of a first node device and a second node device according to an embodiment of the present application;

[0046] FIG5 shows a wireless signal transmission flow chart according to an embodiment of the present application;

[0047] FIG6 is a schematic diagram showing a relationship between a first node and a special cell according to an embodiment of the present application;

[0048] FIG7 shows a schematic diagram of determining a target reference signal according to an embodiment of the present application;

[0049] FIG8 is a schematic diagram showing the relationship between multiple TCI states and a second signal according to an embodiment of the present application;

[0050] FIG9 is a schematic diagram showing configuration information of a first sub-frequency band according to an embodiment of the present application;

[0051] FIG10 shows a schematic diagram of a third information block according to an embodiment of the present application;

[0052] FIG11 shows a schematic diagram of a synchronization broadcast block or a channel state information reference signal associated with a first signal according to an embodiment of the present application;

[0053] FIG12 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0054] FIG13 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0055] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0056] Example 1

[0057] Embodiment 1 illustrates a flowchart 100 of a first information block, a first PDCCH, a first signal, and a second signal according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step. In particular, the order of the steps in the boxes does not represent a specific temporal relationship between the steps.

[0058] In embodiment 1, the first node in the present application receives a first information block, receives a first PDCCH and sends a first signal in step 101, the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble; the first node in the present application receives a second signal in step 102, and the second signal is associated with the RA-RNTI; wherein, the demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0059] As an embodiment, the first information block includes higher-layer information or higher-layer parameter configuration.

[0060] As an embodiment, the first information block includes one or more IEs (Information Elements) included in RRC (Radio Resource Control) layer signaling, or the first information block includes one or more fields (Field) included in RRC layer signaling. As a subsidiary embodiment of the above embodiment, the first information block includes RRC to reduce signaling overhead.

[0061] As an embodiment, the first information block includes all or part of the fields included in a SIB.

[0062] As an embodiment, the first information block is cell common (Cell Common).

[0063] As an embodiment, the first information block is cell specific.

[0064] As an embodiment, the first information block is group common.

[0065] As an embodiment, the first information block is user equipment specific (UE specific or UE dedicated).

[0066] As an embodiment, the first information block is configured per subband (per subband).

[0067] As an embodiment, the first information block is configured per bandwidth part (BWP, bandwidth Part) (Per BWP).

[0068] As an embodiment, the first information block includes all or part of the fields in the IE "SBFDConfigDedicated-r19".

[0069] As an embodiment, the first information block includes all or part of the fields in IE "SBFDConfigCommon-r19".

[0070] As an embodiment, the first information block includes all or part of the fields in IE "SBFDConfig-r19".

[0071] As an embodiment, the first information block includes all or part of the fields in the IE "ServingCellConfigCommon".

[0072] As an embodiment, the first information block includes all or part of the fields in the IE "CellGroupConfig".

[0073] As an embodiment, the first information block includes all or part of the fields in the IE "SpCellConfig".

[0074] As an embodiment, the first information block includes all or part of the fields in the IE "SCellConfig".

[0075] As an embodiment, the first information block includes all or part of the fields in the IE "ServingCellConfigCommonSIB".

[0076] As an embodiment, the first information block includes all or part of the fields in the IE "ServingCellConfig".

[0077] As an embodiment, the first information block includes all or part of the fields in DCI (downlink control information) format 2_N, where N is a non-negative integer.

[0078] As an embodiment, the first information block includes all or part of the fields in DCI format 2_10.

[0079] As an embodiment, the first information block includes all or part of the fields in a DCI format.

[0080] As a subsidiary embodiment of the above embodiment, the first information block including DCI may provide greater flexibility.

[0081] As an embodiment, the first information block is transmitted on a PDCCH (physical downlink control channel).

[0082] As an embodiment, the first information block is used to configure SBFD (Subband non-overlapping Full Duplex) time slots or symbols.

[0083] As an embodiment, the first information block is used to configure a time slot or symbol supporting full duplex.

[0084] As an embodiment, the first information block is used to configure at least one of an uplink subband (UL subband), a downlink subband (DL subband), or a guard band (guardband) of SBFD.

[0085] As an embodiment, the first PDCCH is a PDCCH order.

[0086] As an embodiment, the first PDCCH is a baseband signal or a radio frequency signal of a PDCCH.

[0087] As an embodiment, the first PDCCH is transmitted via an air interface or a wireless interface.

[0088] As an embodiment, the first PDCCH carries DCI used for PDCCH commands.

[0089] As an embodiment, the first PDCCH carries all or part of the fields in DCI format 1_0.

[0090] As an embodiment, DCI format 1_0 is used to generate the first PDCCH.

[0091] As an embodiment, the value of the frequency domain resource assignment field included in the DCI carried by the first PDCCH is equal to all "1s".

[0092] As an embodiment, all bits of the frequency domain resource allocation field included in the DCI carried by the first PDCCH are set to "1".

[0093] As an embodiment, a CRC (Cyclic Redundancy Check) of the DCI format of the DCI carried by the first PDCCH is scrambled by a C-RNTI (Cell-Radio Network Temporary Identifier).

[0094] As an embodiment, the CRC of the first PDCCH is scrambled by the C-RNTI.

[0095] As an embodiment, the first PDCCH is associated with one of C-RNTI, or CS-RNTI (Configured Scheduling RNTI), or MCS-RNTI (Modulcation Coding Scheme RNTI).

[0096] As an embodiment, the PDCCH candidates occupied by the first PDCCH belong to a common search space (CSS) set.

[0097] As an embodiment, the PDCCH candidates occupied by the first PDCCH belong to a user equipment specific search space (USS, UE specific search space) set.

[0098] As an embodiment, the first signal is used for a random access procedure.

[0099] As an embodiment, the first signal is a PRACH (physical random access channel) or is used to transmit a PRACH.

[0100] As an embodiment, the first signal is a radio frequency signal or a baseband signal of a PRACH.

[0101] As an embodiment, the first signal is Msg1 (Message 1).

[0102] As an embodiment, the first signal is MSGA (Message A).

[0103] As an embodiment, the first signal includes PRACH.

[0104] As an embodiment, the first signal includes or carries a random access preamble or a random access preamble code.

[0105] As an embodiment, the first signal includes or carries a random access preamble sequence.

[0106] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH is used by the sender of the first PDCCH in this application to trigger (trigger / initiate) the sending of the first signal.

[0107] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH triggers (trigger / initiate) the sending of the first signal.

[0108] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH indicates the resources occupied by the first signal.

[0109] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH indicates the random access preamble sequence carried by the first signal.

[0110] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0111] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH indicates the index of the SS / PBCH or SSB (synchronization signal / physical broadcast channel) associated with the first signal.

[0112] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH configures or schedules at least one parameter of the first signal.

[0113] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the sending of the first signal is a response to the first PDCCH.

[0114] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first signal" includes the following meaning: the first PDCCH instructs the device of the first node to send the first signal.

[0115] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the first signal carries a random access preamble sequence used to generate a random access preamble.

[0116] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the random access preamble sequence is sequentially generated through sequence generation and mapping to physical resources to generate the first signal.

[0117] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the random access preamble sequence is generated by at least one of sequence generation, mapping to physical resources, OFDM baseband signal generation, and modulation and upconversion to generate the first signal.

[0118] As an embodiment, a ZC (Zadoff-Chu) sequence is used to generate a random access preamble sequence carried by the first signal.

[0119] As an embodiment, a pseudo-random sequence is used to generate a random access preamble sequence carried by the first signal.

[0120] As an embodiment, the random access preamble sequence carried by the first signal adopts one of preamble sequence formats 0, 1, 2, and 3.

[0121] As an embodiment, the random access preamble sequence carried by the first signal adopts one of the preamble sequence formats A1, A2, A3, B1, B2, B3, B4, C0, and C2.

[0122] As an embodiment, the preamble sequence format adopted by the random access preamble sequence carried by the first signal is configured by signaling.

[0123] As an embodiment, the sequence length of the random access preamble sequence carried by the first signal is equal to 139 or 571 or 839 or 1151.

[0124] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the first signal is used to transmit a random access preamble.

[0125] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the random access preamble is transmitted on the first signal.

[0126] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the random access preamble is used to generate the first signal.

[0127] As an embodiment, the technical feature "the first signal at least includes a random access preamble" includes the following meaning: the random access preamble is mapped to the physical resources allocated to the first signal.

[0128] As an embodiment, the first signal also includes PUSCH.

[0129] As an embodiment, the first signal also includes MsgA PUSCH.

[0130] As an embodiment, the second signal is transmitted via an air interface or a wireless interface.

[0131] As an embodiment, the second signal is a baseband signal or a radio frequency signal.

[0132] As an embodiment, the second signal signaling includes a random access response to the first signal.

[0133] As an embodiment, the second signal includes a PDCCH signal and a PDSCH (physical downlink shared channel) signal.

[0134] As an embodiment, the second signal is Msg2 (Message 2).

[0135] As an embodiment, the second signal is PDCCH or is transmitted on PDCCH.

[0136] As an embodiment, the second signal includes a PDCCH signal.

[0137] As an embodiment, the second signal includes a DMRS (demodulation reference signal) of a PDCCH.

[0138] As an embodiment, the second signal includes PDCCH and DMRS of PDCCH.

[0139] As an embodiment, the second signal carries DCI using DCI format 1_0.

[0140] As an embodiment, the CRC of the second signal is scrambled by RA-RNTI (Random Access Radio Network Temporary Identifier).

[0141] As an embodiment, the CRC of the DCI format adopted by the DCI carried by the second signal is scrambled by the RA-RNTI.

[0142] As an embodiment, the second signal is used to schedule a random access response (Random Access Response, RAR) for the first signal.

[0143] As an embodiment, the PDCCH candidates occupied by the second signal belong to a common search space set.

[0144] As an embodiment, the PDCCH candidates occupied by the second signal belong to a PDCCH common search space set of type 1.

[0145] As an embodiment, the second signal is PDSCH or is transmitted on PDSCH.

[0146] As an embodiment, the second signal includes a PDSCH signal.

[0147] As an embodiment, the second signal includes a DMRS of a PDSCH.

[0148] As an embodiment, the second signal includes PDSCH and DMRS of PDSCH.

[0149] As an embodiment, the technical feature "the second signal is associated with the RA-RNTI" includes the following meaning: the CRC of the second signal is scrambled by the RA-RNTI.

[0150] As an embodiment, the technical feature "the second signal is associated with the RA-RNTI" includes the following meaning: the second signal is identified by the RA-RNTI.

[0151] As an embodiment, the technical feature "the second signal is associated with RA-RNTI" includes the following meaning: the CRC of the PDCCH included in the second signal is scrambled by RA-RNTI.

[0152] As an embodiment, the technical feature "the second signal is associated with RA-RNTI" includes the following meaning: RA-RNTI initializes the scrambling code sequence of the second signal.

[0153] As an embodiment, the technical feature “the second signal is associated with the RA-RNTI” includes the following meaning: the initial value of the register of the scrambling sequence of the second signal includes the RA-RNTI.

[0154] As an embodiment, the technical feature "the second signal is associated with RA-RNTI" includes the following meaning: RA-RNTI is one of the parameters for initializing the generation register of the second signal.

[0155] As an embodiment, the RA_RNTI is related to the first signal.

[0156] As an embodiment, the RA_RNTI is calculated based on the time-frequency resources occupied by the first signal.

[0157] As an embodiment, the target reference signal is SSB.

[0158] As a subsidiary embodiment of the above embodiment, the target reference signal is a synchronous broadcast block, which has the advantage of being able to fall back to a wide beam and ensure robustness.

[0159] In one embodiment, the target reference signal is a CSI-RS (channel status information reference signal). As a subsidiary embodiment of the above embodiment, the advantage of using the CSI-RS as the target reference signal is that it can fall back to a narrow beam, thereby improving beamforming gain.

[0160] As an embodiment, the target reference signal is DMRS. As a subsidiary embodiment of the above embodiment, the benefit of the target reference signal being DMRS is to ensure beam consistency and achieve a balance between ensuring robustness and improving beamforming gain.

[0161] As an embodiment, the technical feature "the demodulation reference signal of the second signal and the target reference signal are quasi-co-located" includes the following meaning: the second signal and the target reference signal are quasi-co-located.

[0162] As an embodiment, the technical feature "the demodulation reference signal of the second signal and the target reference signal are quasi-co-located" includes the following meaning: the demodulation reference signal port of the second signal and the target reference signal are quasi-co-located.

[0163] As an embodiment, the technical feature "quasi-co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the demodulation reference signal port of the second signal and the control resource set to which the target reference signal belongs are quasi-co-located.

[0164] As an embodiment, the technical feature "quasi-co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the demodulation reference signal port of the second signal and the control resource set including the target reference signal are quasi-co-located.

[0165] As an embodiment, the technical feature "quasi-co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the demodulation reference signal port of the second signal and the PDCCH or PDSCH including the target reference signal are quasi-co-located.

[0166] As an embodiment, the technical feature "quasi co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the device used for the first node uses the quasi co-location parameter (QCL parameter) of the target reference signal to receive the second signal.

[0167] As an embodiment, the technical feature "quasi-co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the device used for the first node uses the TCI (transmission configuration indicator) state to which the target reference signal belongs to receive the second signal.

[0168] As an embodiment, the technical feature "quasi-co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the transmission beam of the second signal is the same as the transmission beam of the target reference signal.

[0169] As an embodiment, the technical feature “the demodulation reference signal of the second signal and the target reference signal are quasi-co-located” includes the following meaning: the large-scale characteristics of the second signal are the same as the large-scale characteristics of the target reference signal.

[0170] As an embodiment, the technical feature "quasi-co-location between the demodulation reference signal of the second signal and the target reference signal" includes the following meaning: the transmission spatial parameters (or transmission spatial filter) of the second signal and the transmission spatial parameters (or transmission spatial filter) of the target reference signal are the same.

[0171] As an embodiment, the number of possible symbol types for a symbol is equal to two.

[0172] As an embodiment, the number of possible symbol types for a symbol is greater than two.

[0173] As an embodiment, the symbol type of a symbol is one of T1 symbol types, where T1 is a positive integer greater than 1, and the T1 symbol types are predefined or configurable. As a subsidiary embodiment of the above embodiment, the T1 symbol types include SBFD symbols and non-SBFD symbols. As a subsidiary embodiment of the above embodiment, the T1 symbol types include symbols in which SBFD subbands are configured in the time domain and symbols in which SBFD subbands are not configured in the time domain. As a subsidiary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 TCI states, respectively. As a subsidiary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 radio frequency links, respectively. As a subsidiary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 beams, respectively. As a subsidiary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 interference cancellation schemes, respectively. As a subsidiary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 QCL relationships, respectively. As a subsidiary embodiment of the above embodiment, T1 is equal to 2. As a subsidiary embodiment of the above embodiment, T1 is greater than 2. As a subsidiary embodiment of the above embodiment, the T1 symbol types depend on the first information block. As a subsidiary embodiment of the above embodiment, the T1 symbol types depend on the capabilities of the first node. As a subsidiary embodiment of the above embodiment, the device used for the first node cannot assume that two symbols belonging to different symbol types among the T1 symbol types have the same QCL parameters (or QCL assumptions).

[0174] As an embodiment, the symbol type of a symbol is a SBFD symbol or a non-SBFD symbol.

[0175] As an embodiment, the symbol type of a symbol is a symbol configured with SBFD or a symbol not configured with SBFD.

[0176] As an embodiment, the symbol type of a symbol is a symbol in an SBFD time slot or a symbol in a non-SBFD time slot.

[0177] As an embodiment, the symbol type of a symbol is a symbol in which the SBFD subband is configured in the time domain or a symbol in which the SBFD subband is not configured in the time domain.

[0178] As an embodiment, the symbol type of a symbol is a symbol supporting full duplex or a symbol not supporting full duplex.

[0179] As an embodiment, the symbol type of a symbol is a symbol to which SBFD is applicable or a symbol to which SBFD is not applicable.

[0180] As an embodiment, the symbol type of a symbol is a symbol that can be used for uplink transmission and downlink transmission at the same time or a symbol that cannot be used for uplink transmission and downlink transmission at the same time.

[0181] As an embodiment, the symbol type of a symbol is a symbol indicated (or provided) by the first information block or a symbol not indicated (or provided) by the first information block.

[0182] As an embodiment, the symbol type of a symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" and configured (or indicated) as an SBFD symbol, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" and configured (or indicated) as an SBFD symbol, or a symbol not indicated as an SBFD symbol.

[0183] As an embodiment, the symbol type of a symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" and indicated (or provided) by the first information block, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" and indicated (or provided) by the first information block, or a symbol not indicated (or provided) by the first information block.

[0184] As an embodiment, the symbol type of a symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" or "tdd-UL-DL-ConfigDedicated" and configured (or indicated) as an SBFD symbol, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" or "tdd-UL-DL-ConfigDedicated" and configured (or indicated) as an SBFD symbol, or a symbol not indicated as an SBFD symbol.

[0185] As an embodiment, the symbol type of a symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" or "tdd-UL-DL-ConfigDedicated" and indicated (or provided) by the first information block, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" or "tdd-UL-DL-ConfigDedicated" and indicated (or provided) by the first information block, or a symbol not indicated (or provided) by the first information block.

[0186] As an embodiment, only “tdd-UL-DL-ConfigCommon” is considered, which simplifies the design and reduces the workload of standards.

[0187] As an embodiment, both "tdd-UL-DL-ConfigCommon" and "tdd-UL-DL-ConfigDedicated" are considered, and the existing design is used to the maximum extent to ensure compatibility.

[0188] As an embodiment, both downlink and flexible symbols are considered to expand configuration flexibility.

[0189] As an embodiment, only downlink symbols are considered, which simplifies system design.

[0190] As an embodiment, “SBFD symbols” and “full-duplex sub-band symbols” are equivalent or can be used interchangeably.

[0191] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: the target reference signal depends on whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain.

[0192] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same" includes the following meaning: whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same is used to determine the target reference signal.

[0193] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain, the target reference signal is a reference signal; when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is different from the symbol type of at least one symbol occupied by the second signal in the time domain, the target reference signal is another reference signal.

[0194] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: when the first PDCCH occupies at least one SBFD symbol in the time domain and the second signal occupies at least one SBFD symbol in the time domain, or when the first PDCCH occupies at least one non-SBFD symbol in the time domain and the second signal occupies at least one non-SBFD symbol in the time domain, the target reference signal is one reference signal; when the first PDCCH occupies at least one SBFD symbol in the time domain and the second signal occupies at least one non-SBFD symbol in the time domain, or when the first PDCCH occupies at least one non-SBFD symbol in the time domain and the second signal occupies at least one SBFD symbol in the time domain, the target reference signal is another reference signal.

[0195] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

[0196] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is different from the symbol type of at least one symbol occupied by the second signal in the time domain, the target reference signal is a reference signal included in one of the multiple TCI states configured, indicated or activated by the base station corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain.

[0197] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: the target reference signal is related to whether the second signal occupies at least one SBFD symbol in the time domain.

[0198] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: when the second signal occupies at least one SBFD symbol in the time domain, the target reference signal is a reference signal; when the second signal occupies at least one non-SBFD symbol in the time domain, the target reference signal is another reference signal.

[0199] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: the target reference signal is related to whether the first PDCCH occupies at least one SBFD symbol in the time domain.

[0200] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same" includes the following meaning: the target reference signal depends on whether the first PDCCH occupies at least one SBFD symbol in the time domain.

[0201] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same" includes the following meaning: whether the first PDCCH occupies at least one SBFD symbol in the time domain is used to determine the target reference signal.

[0202] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same" includes the following meaning: the target reference signal depends on whether the first PDCCH is orthogonal to the SBFD symbol in the time domain.

[0203] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: the target reference signal depends on whether the first PDCCH is mapped only to SBFD symbols in the time domain.

[0204] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meaning: the target reference signal depends on whether a full-duplex sub-band is configured on any symbol occupied, configured or mapped by the first PDCCH in the time domain.

[0205] As an embodiment, the technical feature "the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: when the first PDCCH occupies at least one SBFD symbol in the time domain, the target reference signal is a reference signal; when the first PDCCH occupies at least one non-SBFD symbol in the time domain, the target reference signal is another reference signal.

[0206] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: the first information block indicates the symbol type of at least one symbol occupied by the first PDCCH in the time domain.

[0207] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: the first information block is used to determine the symbol type of at least one symbol occupied by the first PDCCH in the time domain.

[0208] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the symbol type of at least one symbol occupied by the first PDCCH in the time domain.

[0209] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: the symbol type of at least one symbol occupied by the first PDCCH in the time domain is indicated by the first information block as an SBFD symbol.

[0210] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: the symbol type of at least one symbol occupied by the first PDCCH in the time domain is indicated by the first information block as a downlink symbol and is used for uplink transmission.

[0211] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: the time domain symbols indicated (or provided) by the first information block are one type of symbols, and the time domain symbols not indicated (or provided) by the first information block are another type of symbols.

[0212] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: time domain symbols that fully or partially overlap with the symbols indicated (or provided) by the first information block are one type of symbols, and time domain symbols that do not overlap with the symbols indicated (or provided) by the first information block are another type of symbols.

[0213] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block" includes the following meaning: all or part of the first information block explicitly or implicitly indicates whether the at least one symbol occupied by the first PDCCH in the time domain is a symbol of one type or another type of symbol.

[0214] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: the first information block indicates the symbol type of at least one symbol occupied by the second signal in the time domain.

[0215] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: the first information block is used to determine the symbol type of at least one symbol occupied by the second signal in the time domain.

[0216] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the symbol type of at least one symbol occupied by the second signal in the time domain.

[0217] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: the symbol type of at least one symbol occupied by the second signal in the time domain is indicated by the first information block as an SBFD symbol.

[0218] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: the symbol type of at least one symbol occupied by the second signal in the time domain is indicated by the first information block as a downlink symbol and is used for uplink transmission.

[0219] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: the time domain symbols indicated (or provided) by the first information block are one type of symbols, and the time domain symbols not indicated (or provided) by the first information block are another type of symbols.

[0220] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: time domain symbols that completely or partially overlap with the symbols indicated (or provided) by the first information block are one type of symbols, and time domain symbols that do not overlap with the symbols indicated (or provided) by the first information block are another type of symbols.

[0221] As an embodiment, the technical feature "the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block" includes the following meaning: all or part of the first information block explicitly or implicitly indicates whether the at least one symbol occupied by the second signal in the time domain is a symbol of one type or a symbol of another type.

[0222] Example 2

[0223] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2.

[0224] Figure 2 illustrates the network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architecture for LTE, LTE-A, and future 5G systems is called EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS200 or some other appropriate terminology. The 5GS / EPS 200 may include one or more UEs 201, a UE 241 in sidelink communication with UE 201, a Next Generation Radio Access Network (NG-RAN) 202, a 5G-CN (5G Core Network) / EPC (Evolved Packet Core) 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS 200 may interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in FIG2 , the 5GS / EPS 200 provides packet-switched services. However, those skilled in the art will readily appreciate that the various concepts presented herein can be extended to networks providing circuit-switched services. The NG-RAN 202 includes an NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), Transmitter Receiver Point (TRP), or some other appropriate terminology. The gNB 203 provides an access point to the 5G-CN / EPC 210 for the UE 201.Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB 203 connects to the 5G-CN / EPC 210 via the S1 / NG interface. The 5G-CN / EPC 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which itself is connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet Services 230. The Internet Services 230 includes the operator's corresponding Internet Protocol services, which may include the Internet, Intranet, IMS (IP Multimedia Subsystem), and Packet Switching services.

[0225] As an embodiment, the UE201 corresponds to the device used for the first node in this application.

[0226] As an embodiment, the UE 201 supports transmission in a flexible duplex mode.

[0227] As an embodiment, the gNB (eNB) 201 corresponds to the device used for the second node in this application.

[0228] As an embodiment, the gNB (eNB) 201 supports transmission in flexible duplex mode.

[0229] Example 3

[0230] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG3 .

[0231] FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for a first node device (a UE or RSU (Road Side Unit) in a V2X (Vehicle to Everything) network, a vehicle-mounted device, or a vehicle-mounted communication module) and a second node device (a gNB, a UE or RSU in a V2X network, a vehicle-mounted device, or a vehicle-mounted communication module), or the control plane 300 between two UEs using three layers: Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3). L1 is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 will be referred to herein as PHY 301. L2 305, located above PHY 301, is responsible for the link between the first and second node devices, or between two UEs, through PHY 301. L2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports handover of the first node device between the second node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest process number). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second node device and the first node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first and second node devices in the user plane 350 is substantially identical to the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in Layer 2 355, the RLC sublayer 353 in Layer 2 355, and the MAC sublayer 352 in Layer 2 355. However, the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. Layer 2 355 in the user plane 350 also includes the Service Data Adaptation Protocol (SDAP) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows to Data Radio Bearers (DRBs) to support service diversity. Although not shown, the first node device may have several upper layers above L2 355, including a network layer (e.g., an IP (Internet Protocol) layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0232] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node device in this application.

[0233] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node device in this application.

[0234] As an embodiment, the first node device is the device used for the first node in this application.

[0235] As an embodiment, the second node device is the device used for the second node in this application.

[0236] As an embodiment, the first information block in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0237] As an embodiment, the first PDCCH in the present application is generated by the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0238] As an embodiment, the first signal in the present application is generated by the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0239] As an embodiment, the second signal in the present application is generated by the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0240] As an embodiment, the second information block in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0241] As an embodiment, the third information block in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0242] Example 4

[0243] Example 4 shows a schematic diagram of a first node device and a second node device according to an embodiment of the present application, as shown in FIG4 .

[0244] The first node device (450) may include a controller / processor 490, a data source / buffer 480, a receiving processor 452, a transmitter / receiver 456 and a transmitting processor 455, and the transmitter / receiver 456 includes an antenna 460.

[0245] The second node device ( 410 ) may include a controller / processor 440 , a data source / buffer 430 , a receiving processor 412 , a transmitter / receiver 416 and a transmitting processor 415 , wherein the transmitter / receiver 416 includes an antenna 420 .

[0246] In DL (Downlink), upper layer packets are provided to the controller / processor 440. The controller / processor 440 implements the functions of the L2 layer and above. In DL, the controller / processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first node device 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operations, retransmission of lost packets, and high-layer signaling to the first node device 450. The first information block, the first PDCCH (when the first PDCCH carries high-layer information), the second signal (when the second signal carries high-layer information), and the high-layer information carried by the second information block in this application are generated by the controller / processor 440. The transmit processor 415 performs various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation. For example, the physical layer signal carrying the first information block, the first PDCCH, the second signal, and the physical layer signal carrying the second information block are processed by the transmit processor 415. The generated modulated symbols are divided into parallel streams, each of which is mapped to a corresponding multi-carrier subcarrier and / or multi-carrier symbol. The symbols are then mapped by the transmit processor 415 to the antenna 420 via the transmitter 416 and transmitted as RF signals. At the receiving end, each receiver 456 receives the RF signal via its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the RF carrier and provides the baseband information to the receive processor 452. The receive processor 452 performs various signal reception processing functions for the L1 layer. The signal reception and processing function includes demodulating the physical layer signal carrying the first information block in this application, the first PDCCH, the second signal, and the physical layer signal carrying the second information block in this application based on various modulation schemes (for example, binary phase shift keying (BPSK), quadrature phase shift keying (QPSK)) through the multi-carrier symbols in the multi-carrier symbol stream, and then descrambling, decoding, and deinterleaving to recover the data or control transmitted by the second node device 410 on the physical channel, and then providing the data and control signals to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and above, and the controller / processor 490 interprets the high-level information. This includes interpreting the high-level information carried by the first information block, the first PDCCH (when the first PDCCH carries high-level information), the second signal (when the second signal carries high-level information), and the second information block. The controller / processor may be associated with a memory 480 that stores program code and data. The memory 480 may be referred to as a computer-readable medium.

[0247] In uplink (UL) transmission, similar to downlink transmission, high-layer information, including the first signal (when the first signal carries high-layer information) and the high-layer information carried by the third information block, is generated by the controller / processor 490 and then processed by the transmit processor 455 to perform various signal transmission processing functions for the L1 layer (i.e., the physical layer). The first signal and the physical layer signal carrying the third information block are mapped by the transmit processor 455 to the antenna 460 via the transmitter 456 and transmitted as RF signals. Receivers 416 receive the RF signals via their corresponding antennas 420. Each receiver 416 recovers the baseband information modulated onto the RF carrier and provides the baseband information to the receive processor 412. The receive processor 412 performs various signal reception processing functions for the L1 layer (i.e., the physical layer), including receiving and processing the first signal and the physical layer signal carrying the third information block, and then provides data and / or control signals to the controller / processor 440. Implementing L2 layer functionality in the controller / processor 440 includes interpreting higher-layer information, such as the first signal (when the first signal carries higher-layer information) and the higher-layer information carried by the third information block in this application. The controller / processor may be associated with a buffer 430 that stores program code and data. Buffer 430 may be a computer-readable medium.

[0248] As an embodiment, the first node device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first node device 450 apparatus at least: receives a first information block, receives a first PDCCH and sends a first signal, the first PDCCH is used to trigger the sending of the first signal, the first signal at least includes a random access preamble; receives a second signal, the second signal is associated with RA-RNTI; wherein the demodulation reference signal and the target reference signal of the second signal are quasi-co-located, the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0249] As an embodiment, the first node device 450 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first information block, receiving a first PDCCH and sending a first signal, the first PDCCH is used to trigger the sending of the first signal, the first signal at least including a random access preamble; receiving a second signal, the second signal being associated with an RA-RNTI; wherein the demodulation reference signal and the target reference signal of the second signal are quasi-co-located, the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0250] As an embodiment, the second node device 410 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second node device 410 apparatus at least: sends a first information block, sends a first PDCCH and receives a first signal, the first PDCCH is used to trigger the sending of the first signal, the first signal at least includes a random access preamble; sends a second signal, the second signal is associated with an RA-RNTI; wherein the demodulation reference signal and the target reference signal of the second signal are quasi-co-located, the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0251] As an embodiment, the second node device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, the actions including: sending a first information block, sending a first PDCCH and receiving a first signal, the first PDCCH is used to trigger the sending of the first signal, the first signal at least including a random access preamble; sending a second signal, the second signal is associated with RA-RNTI; wherein the demodulation reference signal and the target reference signal of the second signal are quasi-co-located, the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0252] As an embodiment, the first node device is the device used for the first node in this application.

[0253] As an embodiment, the first node device 450 is a user equipment (UE).

[0254] As an embodiment, the first node device 450 is a user equipment supporting flexible duplex mode transmission.

[0255] As an embodiment, the second node device is the device used for the second node in this application.

[0256] As an embodiment, the second node device 410 is a base station device (gNB / eNB).

[0257] As an embodiment, the second node device 410 is a base station device that supports flexible duplex mode transmission.

[0258] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are used to receive the first information block in this application.

[0259] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are used to receive the first PDCCH in this application.

[0260] As an embodiment, the transmitter 456 (including the antenna 460), the transmit processor 455 and the controller / processor 490 are used to transmit the first signal in this application.

[0261] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are configured to receive the second signal in the present application.

[0262] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are configured to receive the second information block in the present application.

[0263] As an embodiment, the receiver 456 (including the antenna 460), the transmit processor 455 and the controller / processor 490 are used to transmit the third information block in this application.

[0264] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the first information block in this application.

[0265] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the first PDCCH in this application.

[0266] As an embodiment, the receiver 416 (including the antenna 420 ), the receiving processor 412 and the controller / processor 440 are used to receive the first signal in this application.

[0267] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the second signal in this application.

[0268] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the second information block in this application.

[0269] As an embodiment, the receiver 416 (including the antenna 420 ), the receiving processor 412 and the controller / processor 440 are configured to receive the third information block in the present application.

[0270] Example 5

[0271] Example 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5 . In FIG5 , the second node N500 is the base station maintaining the serving cell of the first node U550. It should be noted that the sequence in this example does not limit the signal transmission sequence and implementation order in this application.

[0272] For the second node N500, a first information block is sent in step S501, a first PDCCH is sent in step S502, a first signal is received in step S503, a second signal is sent in step S504, a second information block is sent in step S505, and a third information block is received in step S506.

[0273] For the first node U550, the first information block is received in step S551, the first PDCCH is received in step S552, the first signal is sent in step S553, the second signal is received in step S554, the second information block is received in step S555, and the third information block is sent in step S556.

[0274] In embodiment 5, the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble; the second signal is associated with the RA-RNTI; the demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block; the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set, the second information block indicates multiple TCI states, and the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain; the third information block indicates that the sender of the third information block supports the random access process in symbols for the full-duplex sub-band.

[0275] As an embodiment, the second information block is earlier than the first information block.

[0276] As an embodiment, the second information block is later than the first information block.

[0277] As an embodiment, the third information block is earlier than the first information block.

[0278] As an embodiment, the third information block is later than the first information block.

[0279] As an embodiment, the third information block is earlier than the second information block.

[0280] As an embodiment, the third information block is later than the second information block.

[0281] As an embodiment, the first information block and the second information block are carried through different IEs or different fields in the same signaling.

[0282] As an embodiment, the first information block and the second information block belong to the same IE.

[0283] As a subsidiary embodiment of the above embodiment, the benefit of doing so is that resources are saved.

[0284] As an embodiment, the first information block and the second information block belong to two different IEs. As a subsidiary embodiment of the above embodiment, this method has the advantages of simple design and resource saving.

[0285] As an embodiment, the second information block includes higher-layer information or higher-layer parameter configuration.

[0286] As an embodiment, the second information block includes one or more IEs included in an RRC layer signaling, or the second information block includes one or more fields included in an RRC layer signaling. As a subsidiary embodiment of the above embodiment, the second information block includes RRC to reduce signaling overhead.

[0287] As an embodiment, the second information block is user equipment specific (UE specific or UE dedicated).

[0288] As an embodiment, the second information block is configured per subband. As a subsidiary embodiment of the above embodiment, a TCI state list or set is configured per SBFD subband to improve flexibility.

[0289] As an embodiment, the second information block is configured per carrier. As a subsidiary embodiment of the above embodiment, a TCI state list or set for SBFD is configured per carrier to simplify the design.

[0290] As an embodiment, the second information block is configured per bandwidth part (BWP). As a subsidiary embodiment of the above embodiment, the TCI status list or set configured per BWP is reused to reduce standardization work.

[0291] As an embodiment, the second information block includes all or part of the IE "PDSCH-Config".

[0292] As an embodiment, the second information block includes all or part of the field "tci-StatesToAddModList".

[0293] As an embodiment, the second information block includes all or part of the field "tci-StatesToReleaseList".

[0294] As an embodiment, the second information block includes all or part of the fields in the IE "dl-OrJointTCI-StateList".

[0295] As an embodiment, the second information block includes all or part of the IE "PDCCH-Config".

[0296] As an embodiment, the second information block includes all or part of the IE "ControlResourceSet".

[0297] As an embodiment, the second information block includes all or part of the fields in the field "tci-StatesPDCCH-ToAddList".

[0298] As an embodiment, the second information block includes all or part of the fields in the field "tci-StatesPDCCH-ToReleaseList".

[0299] As an embodiment, the second information block includes all or part of the IE "CSI-ResourceConfig".

[0300] As an embodiment, the second information block includes all or part of the fields in the IE "SBFDConfig-r19".

[0301] As an embodiment, the third information block is transmitted via an air interface or a wireless interface.

[0302] As an embodiment, the third information block includes all or part of high-layer signaling or physical layer signaling.

[0303] As an embodiment, the third information block includes all or part of the RRC signaling, or the third information block includes all or part of the MAC layer signaling.

[0304] As an embodiment, the third information block is transmitted via PUSCH or PUCCH (Physical Uplink Control Channel).

[0305] As an embodiment, the third information block is used to indicate the capability of the first node in this application.

[0306] As an embodiment, the sender of the third information block is the first node in this application or the device used for the first node in this application.

[0307] As an embodiment, the third information block includes IE "UE-NR-Capability".

[0308] As an embodiment, the third information block includes IE "RF-Parameters", or the third information block includes IE "BandNR".

[0309] As an embodiment, the third information block includes IE “BandCombinationList”, or the third information block includes IE “BandCombination”.

[0310] As an embodiment, the third information block includes IE "Phy-Parameters".

[0311] As an embodiment, the third information block includes IE “FeatureSetUplink”, or the third information block includes IE “FeatureSetUplinkPerCC”.

[0312] Example 6

[0313] Embodiment 6 illustrates a schematic diagram of the relationship between a first node and a special cell according to an embodiment of the present application, as shown in Figure 6. In Figure 6, the first node may initiate a non-contention-based random access to the special cell.

[0314] In Example 6, the target reference signal in this application is related to whether the non-competitive random access triggered by the first PDCCH in this application is for a special cell, and the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0315] As an embodiment, the technical feature "whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: all or part of the first PDCCH is used to explicitly or implicitly indicate whether the triggered non-competitive random access is for a special cell.

[0316] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: the non-contention random access triggered by the first PDCCH is for a special cell (special cel, SPcell).

[0317] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: the non-contention random access triggered by the first PDCCH is not for a special cell.

[0318] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the non-contention random access triggered by the first PDCCH is for a secondary cell (Scell).

[0319] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the random access preamble corresponding to the non-contention random access triggered by the first PDCCH is sent to the special cell.

[0320] As an embodiment, the technical feature "whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the random access preamble corresponding to the non-competitive random access triggered by the first PDCCH is received by the special cell.

[0321] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the first PDCCH indicates (or configures or includes) a physical cell identifier (PCI) for a special cell.

[0322] As an embodiment, the technical feature "whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the frequency domain resources occupied or mapped by the non-competitive random access triggered by the first PDCCH belong to the BWP of the special cell.

[0323] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the first PDCCH triggers a non-contention random access on a special cell.

[0324] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: the cell where the sender of the first PDCCH is located is not a special cell.

[0325] As an embodiment, the technical feature "whether the non-contention random access triggered by the first PDCCH is for a special cell" includes the following meaning: the cell where the sender of the first PDCCH is located is a special cell.

[0326] As an embodiment, the technical feature "whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the non-competitive random access triggered by the first PDCCH is for obtaining uplink synchronization of the special cell.

[0327] As an embodiment, the technical feature "whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the non-competitive random access triggered by the first PDCCH is for obtaining a timing advance (TA) value of the special cell.

[0328] As an embodiment, the technical feature "the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: the target reference signal depends on whether the non-competitive random access triggered by the first PDCCH is for a special cell.

[0329] As an embodiment, the technical feature "whether the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meaning: whether the non-competitive random access triggered by the first PDCCH is for a special cell is used to determine the target reference signal.

[0330] As an embodiment, the technical feature "the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell" includes the following meanings: when the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is a reference signal; when the non-competitive random access triggered by the first PDCCH is not for a special cell, the target reference signal is another reference signal.

[0331] As an embodiment, the time-frequency resources occupied by the first signal refer to the physical resources mapped by the first signal.

[0332] As an embodiment, the time-frequency resources occupied by the first signal refer to the time-frequency resources used to transmit the first signal.

[0333] As an embodiment, the time-frequency resources occupied by the first signal refer to the time-frequency resources used to send the first signal.

[0334] As an embodiment, the time-frequency resources occupied by the first signal refer to a PRACH opportunity (PRACH occasion) corresponding to the first signal.

[0335] As an embodiment, the time-frequency resources occupied by the first signal include a cyclic prefix (CP) and a guard period (GP).

[0336] As an embodiment, the time-frequency resources occupied by the first signal do not include protection time.

[0337] As an embodiment, the time-frequency resources occupied by the first signal refer to the time-frequency resources of the PRACH used to transmit the first signal.

[0338] As an embodiment, the random access preamble included in the first signal refers to the random access preamble index included in the first signal.

[0339] As an embodiment, the random access preamble included in the first signal refers to the format of the random access preamble sequence included in the first signal.

[0340] As an embodiment, the random access preamble included in the first signal refers to the sequence length of the random access preamble sequence included in the first signal.

[0341] As an embodiment, the random access preamble included in the first signal refers to the SSB corresponding to the random access preamble included in the first signal.

[0342] As an embodiment, the random access preamble included in the first signal refers to the index of the SSB corresponding to the random access preamble included in the first signal.

[0343] As an embodiment, the technical feature "the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal" includes the following meaning: the time-frequency resources occupied by the first signal and the random access preamble included in the first signal depend on the first PDCCH.

[0344] As an embodiment, the technical feature "the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal" includes the following meaning: the first PDCCH indicates the index of the time-frequency resources occupied by the first signal and the index of the random access preamble included in the first signal.

[0345] As an embodiment, the technical feature "the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal" includes the following meaning: all or part of the first PDCCH is used to explicitly or implicitly indicate the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0346] As an embodiment, the technical feature "the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal" includes the following meanings: the field "Random Access Preamble index", the field "SS / PBCH index" and the field "PRACH Mask index" included in the first PDCCH respectively indicate the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0347] Example 7

[0348] Embodiment 7 illustrates a schematic diagram of determining a target reference signal according to an embodiment of the present application, as shown in FIG7 . In FIG7 , each diamond represents a judgment, and each rectangle represents a state. Starting from S700 , in S701 , it is determined whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-contention random access triggered by the first PDCCH is for a special cell. In S702 , the target reference signal is the quasi-co-located reference signal of the first PDCCH. In S703 , the target reference signal is the reference signal associated with the random access or the reference signal included in a configured TCI state.

[0349] In Example 7, when the symbol type of at least one symbol occupied by the first PDCCH in the present application in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the present application in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal in the present application is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

[0350] As an embodiment, the technical feature "when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH" includes the following meaning: when the first PDCCH occupies (or maps or configures) SBFD symbols in the time domain, the second signal occupies (or maps or configures) SBFD symbols in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH.

[0351] As an embodiment, the technical feature "when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH" includes the following meaning: when the first PDCCH occupies (or maps or configures) non-SBFD symbols in the time domain, the second signal occupies (or maps or configures) non-SBFD symbols in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH.

[0352] As an embodiment, the technical feature "when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH" includes the following meaning: when the first PDCCH occupies (or maps or configures) SBFD symbols in the time domain, the second signal occupies (or maps or configures) SBFD symbols in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the demodulation reference signal of the first PDCCH.

[0353] As an embodiment, the technical feature "when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH" includes the following meaning: when the first PDCCH occupies (or maps or configures) non-SBFD symbols in the time domain, the second signal occupies (or maps or configures) non-SBFD symbols in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the demodulation reference signal of the first PDCCH.

[0354] As an embodiment, the quasi-co-located reference signal of the first PDCCH is the DMRS of the first PDCCH.

[0355] As an embodiment, the reference signal quasi-co-located with the first PDCCH is a reference signal quasi-co-located with the DMRS of the first PDCCH.

[0356] As an embodiment, the quasi-co-located reference signal of the first PDCCH is a quasi-co-located reference signal of type D with the DMRS of the first PDCCH.

[0357] As an embodiment, the quasi-co-located reference signal of the first PDCCH is SSB or CSI-RS.

[0358] As an embodiment, the quasi-co-located reference signal of the first PDCCH is a reference signal included in the TCI state of the first PDCCH.

[0359] As an embodiment, the quasi-co-located reference signal of the first PDCCH refers to a downlink reference signal that is the same as the transmit beam of the first PDCCH.

[0360] As an embodiment, the quasi-co-located reference signal of the first PDCCH refers to a downlink reference signal having the same large-scale characteristics as the first PDCCH.

[0361] As an embodiment, the quasi-co-located reference signal of the first PDCCH refers to a downlink reference signal having the same transmission spatial parameters (or transmission spatial filter) as the first PDCCH.

[0362] As an embodiment, the technical feature "the target reference signal is a reference signal associated with random access" includes the following meaning: the target reference signal is a synchronization broadcast block or a channel state information reference signal associated with random access.

[0363] As an embodiment, the technical feature "the target reference signal is a reference signal associated with random access" includes the following meaning: the target reference signal is a synchronization broadcast block associated with random access or an NZP (Non-Zero Power) channel state information reference signal.

[0364] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the synchronization broadcast block selected in the initial access procedure.

[0365] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the reference signal associated with the latest random access process.

[0366] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the synchronization broadcast block selected during the initial cell search process.

[0367] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the synchronization broadcast block associated with the PRACH in the initial access process.

[0368] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the synchronization broadcast block determined or identified in the initial access process.

[0369] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the synchronization broadcast block selected in the process of establishing the RRC connection.

[0370] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the channel state information reference signal associated with PRACH in the RRC connected state.

[0371] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the channel state information reference signal related to PRACH configured or indicated by the base station in the RRC connected state.

[0372] As a subsidiary embodiment of the above embodiment, the synchronization broadcast block or channel state information reference signal associated with the random access refers to the channel state information reference signal used for PRACH configured or indicated to the user in the RRC connected state.

[0373] As an embodiment, the technical feature "the target reference signal is a reference signal associated with random access" includes the following meaning: the target reference signal is a demodulation reference signal of a control resource set associated with a type 1 PDCCH common search space set.

[0374] As an embodiment, the type 1 PDCCH common search space set is type 1 PDCCH Common Search Space.

[0375] As an embodiment, the type 1 PDCCH common search space set is configured by the ra-SearchSpace field in the IE PDCCH-ConfigCommon.

[0376] As an embodiment, the type 1 PDCCH common search space set is configured by IE SearchSpace.

[0377] As an embodiment, the type 1 PDCCH common search space set is used to detect the DCI format in which the CRC is scrambled by RA-RNTI, MsgB-RNTI, or TC-RNTI.

[0378] As a subsidiary embodiment of the above embodiment, the demodulation reference signal of the control resource set associated with the type 1 PDCCH common search space set refers to the demodulation reference signal of the control resource set corresponding to the type 1 PDCCH common search space set. As a subsidiary embodiment of the above embodiment, the correspondence between the type 1 PDCCH common search space set and the control resource set is predefined or configured.

[0379] As a subsidiary embodiment of the above embodiment, the demodulation reference signal of the control resource set associated with the type 1 PDCCH common search space set refers to the downlink reference signal contained in a TCI state in the control resource set associated with the type 1 PDCCH common search space set.

[0380] As a subsidiary embodiment of the above embodiment, the demodulation reference signal of the control resource set associated with the type 1 PDCCH common search space set refers to the downlink reference signal contained in the TCI state with the minimum index value (ID) in the control resource set associated with the type 1 PDCCH common search space set.

[0381] As a subsidiary embodiment of the above embodiment, the demodulation reference signal of the control resource set associated with the type 1 PDCCH common search space set refers to the demodulation reference signal of the PDCCH received on the type 1 PDCCH common search space set and its corresponding control resource set.

[0382] As a subsidiary embodiment of the above embodiment, the demodulation reference signal of the control resource set associated with the type 1 PDCCH common search space set refers to a downlink reference signal used for receiving PDCCH on the type 1 PDCCH common search space set.

[0383] As an embodiment, the technical feature "the target reference signal is a reference signal associated with random access" includes the following meaning: the target reference signal is the demodulation reference signal of the PDSCH (Physical Downlink Shared Channel) scheduled by the second signal.

[0384] As a subsidiary embodiment of the above embodiment, the reference signal associated with the random access refers to a downlink reference signal that is quasi-co-located with a demodulation reference signal of a PDSCH scheduled by the second signal.

[0385] As a subsidiary embodiment of the above embodiment, the reference signal associated with the random access refers to a downlink reference signal used for receiving a PDSCH scheduled by the second signal.

[0386] As a subsidiary embodiment of the above embodiment, the reference signal associated with the random access refers to a downlink reference signal that is the same as the transmit beam of the PDSCH scheduled by the second signal.

[0387] As a subsidiary embodiment of the above embodiment, the reference signal associated with the random access is a downlink reference signal having the same large-scale characteristics as the PDSCH scheduled by the second signal.

[0388] As a subsidiary embodiment of the above embodiment, the reference signal associated with the random access refers to a downlink reference signal having the same transmission spatial parameters (or transmission spatial filter) as those of the PDSCH scheduled by the second signal.

[0389] As an embodiment, the technical feature “the target reference signal is a reference signal included in a configured TCI state” includes the following meaning: the target reference signal is a reference signal included in an indicated TCI state.

[0390] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in a TCI state indicated by the PDCCH.

[0391] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in a TCI state indicated by the PDSCH.

[0392] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in any one of the configured multiple TCI states.

[0393] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in a TCI state with a minimum index value (ID) among multiple configured TCI states.

[0394] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in an activated TCI state among the configured multiple TCI states.

[0395] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in any one of the multiple activated TCI states among the configured multiple TCI states.

[0396] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in a TCI state with a minimum index value among multiple activated TCI states among multiple configured TCI states.

[0397] As an embodiment, the technical feature "the target reference signal is a reference signal included in a configured TCI state" includes the following meaning: the target reference signal is a reference signal included in an indicated TCI state among multiple activated TCI states among multiple configured TCI states.

[0398] Example 8

[0399] Example 8 illustrates a schematic diagram of the relationship between multiple TCI states and a second signal according to an embodiment of the present application, as shown in Figure 8. In Figure 8, the horizontal axis represents time, each unfilled rectangular area represents a TCI state, #1 and #2 therein represent corresponding index values, the rectangular area in the bold frame represents a TCI state corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain, and the rectangular area filled with crosshairs represents the second signal.

[0400] In embodiment 8, the second signal in the present application is scheduled by the PDCCH included in the PDCCH common search space set of type 1, the second information block indicates multiple TCI states, and the target reference signal in the present application is a reference signal included in a TCI state among the multiple TCI states and corresponding to the symbol type of at least one symbol occupied by the second signal in the present application in the time domain.

[0401] As an embodiment, the target reference signal is a reference signal included in a TCI state corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain, ensuring that the optimal beam is used when the TCI state is configured, thereby improving random access performance.

[0402] As an embodiment, the TCI states are independently configured for different symbol types, thereby taking into account the implementation of full-duplex self-interference elimination, optimizing beam configuration, and improving performance.

[0403] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: the PDCCH included in the type 1 PDCCH common search space set schedules (or indicates or configures) the second signal.

[0404] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: all or part of the PDCCH included in the type 1 PDCCH common search space set is used to explicitly or implicitly indicate the time-frequency resources occupied by the second signal.

[0405] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: the two domains included in the PDCCH included in the type 1 PDCCH common search space set respectively indicate the time domain resources and frequency domain resources occupied by the second signal.

[0406] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: a domain included in the PDCCH included in the type 1 PDCCH common search space set simultaneously indicates the time domain resources and frequency domain resources occupied by the second signal.

[0407] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: the FDRA (frequency domain resource assignment) domain and TDRA (time domain resource assignment) domain included in the PDCCH included in the type 1 PDCCH common search space set respectively indicate the frequency domain resources and time domain resources occupied by the second signal.

[0408] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: the PDCCH included in the type 1 PDCCH common search space set indicates the time domain resources and frequency domain resources occupied by the second signal from multiple candidate time-frequency resources, and the multiple candidate time-frequency resources are predefined or configured by higher-layer signaling or parameters.

[0409] As an embodiment, the technical feature "the second signal is scheduled by the PDCCH included in the type 1 PDCCH common search space set" includes the following meaning: the PDCCH included in the type 1 PDCCH common search space set indicates at least one of the resource mapping frequency, frequency domain allocation, starting OFDM symbol in the time domain, code division multiplexing type, number and density of antenna ports of the second signal.

[0410] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: all or part of the second information block is used to explicitly or implicitly indicate the multiple TCI states.

[0411] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block configures or activates the multiple TCI states.

[0412] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block includes the initial high-level configuration of the multiple TCI states.

[0413] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block indicates all or part of the multiple TCI states.

[0414] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block indicates the identification (ID) or index (index) of all or part of the multiple TCI states.

[0415] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block includes multiple sub-information blocks, and the multiple sub-information blocks included in the second information block respectively indicate the multiple TCI states.

[0416] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block includes multiple "TCI-State" IEs.

[0417] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block configures a TCI state list for different symbol types, and the multiple TCI states are TCI states included in the TCI state list.

[0418] As an embodiment, the technical feature "the second information block indicates multiple TCI states" includes the following meaning: the second information block configures multiple TCI state lists for different symbol types, and the multiple TCI states are TCI states included together by the multiple TCI state lists.

[0419] As an embodiment, any one of the plurality of TCI states includes at least one QCL assumption.

[0420] As an embodiment, any one of the multiple TCI states is the IE “TCI-State”.

[0421] As an embodiment, any one of the multiple TCI states includes at least one reference signal and a corresponding QCL type.

[0422] As an embodiment, any one of the multiple TCI states is associated with at least one reference signal and a corresponding QCL type.

[0423] As an embodiment, any one of the multiple TCI states includes at least one reference signal index and a QCL type.

[0424] As an embodiment, any one of the multiple TCI states includes at least one TCI state identifier and one QCL information.

[0425] As an embodiment, any one of the multiple TCI states includes at least one TCI state identifier, a serving cell index, a BWP (bandwidth part) identifier, a reference signal resource identifier and a QCL type.

[0426] As an embodiment, any one of the multiple TCI states includes at least one TCI state identifier, a serving cell index, a BWP (bandwidth part) identifier, a synchronization broadcast block (SSB or SS / PBCH block) index or a channel status reference signal (CSI-RS, channel status information reference signal) identifier and a QCL type.

[0427] As an embodiment, any one of the multiple TCI states includes at least one TCI state identifier and QCL information, and the QCL information includes at least a serving cell index, a BWP (bandwidth part) identifier, a reference signal identifier or index, and a QCL type.

[0428] As an embodiment, any one of the multiple TCI states includes at least one TCI state identifier and QCL information, and the QCL information includes at least a serving cell index, a BWP (bandwidth part) identifier, a synchronization broadcast block (SSB or SS / PBCH block) index or a channel state reference signal identifier and a QCL type.

[0429] As an embodiment, the second signal is configured with only one TCI state.

[0430] As an embodiment, the second signal is configured with more than one TCI state.

[0431] As an embodiment, the multiple TCI states are all for PDSCH.

[0432] As an embodiment, the multiple TCI states are all for PDCCH.

[0433] As an embodiment, the multiple TCI states are configured or indicated by the initial high-level configuration for the second signal.

[0434] As an embodiment, the multiple TCI states are configured or indicated by the second information block for the second signal.

[0435] As an embodiment, the multiple TCI states are all for the first node.

[0436] As an embodiment, the determination of the multiple TCI states is implementation-dependent and is not defined by the standard.

[0437] As an embodiment, the multiple TCI states may be TCI states determined by a network or a base station to be suitable for the second signal or the first node.

[0438] As an embodiment, the multiple TCI states are respectively for different symbol types.

[0439] As an embodiment, two TCI states among the multiple TCI states are for different symbol types.

[0440] As an embodiment, the technical feature "the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: the symbol type of at least one time domain symbol occupied by the second signal in the time domain is a first type, the first type is one of a plurality of symbol types, a symbol of any one of the plurality of symbol types is associated with at least one TCI state among the plurality of TCI states, and the target reference signal is a reference signal included (or indicated or provided) in any TCI state among the at least one TCI state associated with the symbol of the first type. As a subsidiary embodiment of the above embodiment, the mutual association relationship (or corresponding relationship or mapping relationship) between any one of the plurality of symbol types and the TCI state is predefined or configured.

[0441] As an embodiment, the technical feature "the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: the symbol type of at least one time domain symbol occupied by the second signal in the time domain is a first type, the first type is one of a plurality of symbol types, a symbol of any one of the plurality of symbol types is associated with at least one TCI state among the plurality of TCI states, and the target reference signal is a reference signal included (or indicated or provided) in the first TCI state among the at least one TCI state associated with the symbol of the first type. As an auxiliary embodiment of the above embodiment, the mutual association relationship (or corresponding relationship or mapping relationship) between any one of the plurality of symbol types and the TCI state is predefined or configured.

[0442] As an embodiment, the technical feature "the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: the symbol type of at least one time domain symbol occupied by the second signal in the time domain is a first type, the first type is one of a plurality of symbol types, a symbol of any one of the plurality of symbol types is associated with one TCI state among the plurality of TCI states, and the target reference signal is a reference signal included (or indicated or provided) in one TCI state associated with the symbol of the first type. As a subsidiary embodiment of the above embodiment, the mutual association relationship (or corresponding relationship or mapping relationship) between any one of the plurality of symbol types and the TCI state is predefined or configured.

[0443] As an embodiment, the technical feature "the target reference signal is a reference signal included in a TCI state among the multiple TCI states that corresponds to the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: the symbol type of at least one time domain symbol occupied by the second signal in the time domain is a first type, the first type is one of a plurality of symbol types, a symbol of any one of the plurality of symbol types is associated with at least one TCI state among the plurality of TCI states, and the target reference signal is a reference signal included (or indicated or provided) in an activated (or indicated) TCI state among the at least one TCI state associated with the symbol of the first type. As a subsidiary embodiment of the above embodiment, the mutual association relationship (or corresponding relationship or mapping relationship) between any one of the plurality of symbol types and the TCI state is predefined or configured.

[0444] As an embodiment, the technical feature "the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain" includes the following meanings: the symbol type of at least one time domain symbol occupied by the second signal in the time domain is a first type, the first type is one of a plurality of symbol types, a symbol of any one of the plurality of symbol types is associated with at least one TCI state among the multiple TCI states, and the target reference signal is a reference signal included (or indicated or provided) in a TCI state with a minimum index value among at least one activated TCI state among the at least one TCI state associated with the symbol of the first type. As a subsidiary embodiment of the above embodiment, the mutual association relationship (or corresponding relationship or mapping relationship) between any one of the plurality of symbol types and the TCI state is predefined or configured.

[0445] Example 9

[0446] Embodiment 9 illustrates a schematic diagram of configuration information of the first sub-frequency band according to an embodiment of the present application, as shown in Figure 9. In Figure 9, the horizontal axis represents time, the vertical axis represents frequency, and the rectangular area filled with cross lines is the configuration information of the first sub-frequency band.

[0447] In Example 9, the first information block in the present application indicates the configuration information of the first sub-band, the first sub-band in the present application is a full-duplex sub-band, and the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band; at least one of the symbol type of at least one symbol occupied by the first PDCCH in the present application in the time domain or the symbol type of at least one symbol occupied by the second signal in the present application in the time domain is a time domain symbol for the first sub-band.

[0448] As an embodiment, the “first sub-band” and the “full-duplex sub-band” are equivalent or can be used interchangeably.

[0449] As an embodiment, the full-duplex sub-band is an SBFD sub-band.

[0450] As an embodiment, the full-duplex sub-band is an uplink SBFD sub-band.

[0451] As an embodiment, the full-duplex sub-band is a sub-band that can be used for uplink transmission in downlink symbols or flexible symbols.

[0452] As an embodiment, the full-duplex sub-band is a sub-band in which full-duplex transmission can be performed both on the network (or base station side) and on the user equipment side.

[0453] As an embodiment, the full-duplex sub-band is a sub-band that supports self-interference cancellation.

[0454] As an embodiment, the full-duplex sub-band is a sub-band that is configured or indicated by the information unit tdd-UL-DL-ConfigCommon as a downlink or flexible symbol that can be used for uplink transmission.

[0455] As an embodiment, the full-duplex sub-band is a sub-band that can be used for uplink transmission in symbols configured or indicated as downlink by the information unit tdd-UL-DL-ConfigCommon.

[0456] As an embodiment, the full-duplex sub-band is a set of CRBs (common resource blocks) that can be used for uplink transmission in symbols configured or indicated as downlink in the information unit tdd-UL-DL-ConfigCommon.

[0457] As an embodiment, the time domain symbol for the first sub-frequency band is a time domain symbol configured with the full-duplex sub-frequency band.

[0458] As an embodiment, the time domain symbol for the first sub-band is an SBFD symbol or a full-duplex sub-band symbol.

[0459] As an embodiment, the “time domain symbol for the first sub-band” and the “full-duplex sub-band symbol” are equivalent or can be used interchangeably.

[0460] As an embodiment, the technical feature "the first information block indicates configuration information of the first sub-frequency band" includes the following meaning: the first information block indicates the first sub-frequency band.

[0461] As an embodiment, the technical feature "the first information block indicates the configuration information of the first sub-frequency band" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the configuration information of the first sub-frequency band.

[0462] As an embodiment, the technical feature “the first information block indicates configuration information of the first sub-frequency band” includes the following meaning: the first information block is used to determine the configuration information of the first sub-frequency band.

[0463] As an embodiment, the technical feature "the first information block indicates configuration information of the first sub-frequency band" includes the following meaning: the configuration information of the first sub-frequency band depends on the first information block.

[0464] As an embodiment, the technical feature "the first information block indicates the configuration information of the first sub-band" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the frequency domain configuration information of the first sub-band.

[0465] As an embodiment, the technical feature "the first information block indicates the configuration information of the first sub-frequency band" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the time domain configuration information of the time domain symbols for the first sub-frequency band.

[0466] As an embodiment, the technical feature "the first information block indicates the configuration information of the first sub-band" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the frequency domain configuration information of the first sub-band and the time domain configuration information of the time domain symbols for the first sub-band.

[0467] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the resource blocks included in the first sub-band.

[0468] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the starting RB (or the lowest indexed RB) of the first sub-band.

[0469] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the number of RBs (resource blocks) included in the first sub-band.

[0470] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the RIV (resource indicator value) corresponding to the first sub-band.

[0471] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the RIV corresponding to the first sub-band, and the starting RB of the first sub-band and the number of consecutive RBs included are used to generate the corresponding RIV.

[0472] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the SLIV (start and length indicator value) corresponding to the first sub-band.

[0473] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the SLIV corresponding to the first sub-band, and the starting RB of the first sub-band and the number of consecutive RBs included are used to generate the corresponding SLIV.

[0474] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the lowest-indexed CRB included in the first sub-band and the number of CRBs spaced between frequency point A (point A) and the number of consecutive CRBs included in the first sub-band.

[0475] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the CRB with the lowest index for the reference sub-carrier spacing included in the first sub-band and the number of CRBs for the reference sub-carrier spacing spaced between frequency point A, and the number of consecutive CRBs for the reference sub-carrier spacing included in the first sub-band. As a subsidiary embodiment of the above embodiment, the reference sub-carrier spacing is equal to the sub-carrier spacing in an uplink resource grid. As a subsidiary embodiment of the above embodiment, the reference sub-carrier spacing is equal to the sub-carrier spacing in a downlink resource grid. The advantage of doing so is to improve scheduling flexibility. As a subsidiary embodiment of the above embodiment, the reference sub-carrier spacing is related to the frequency range (FR). As a subsidiary embodiment of the above embodiment, the reference sub-carrier spacing is predefined or configured. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is the maximum value among the subcarrier spacings respectively targeted by the multiple configured uplink resource grids; the advantage of doing so is that alignment with uplink resources is ensured. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is the maximum value among the subcarrier spacings respectively targeted by the multiple configured downlink resource grids; the advantage of doing so is that alignment with downlink resources is ensured. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is the maximum value among the subcarrier spacings respectively targeted by all configured resource grids; the advantage of doing so is that alignment with both uplink and downlink resources is ensured.

[0476] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the time domain symbols for the first sub-band.

[0477] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the time domain pattern of the full-duplex sub-band symbols.

[0478] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the time domain distribution of the full-duplex sub-band symbols.

[0479] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the period of the full-duplex sub-band symbol.

[0480] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the starting symbol of the full-duplex sub-band symbol.

[0481] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the time domain starting symbol of the full-duplex sub-band symbol and the number of time domain symbols.

[0482] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the SLIV (start and length indicator value) of the full-duplex sub-band symbol.

[0483] As an embodiment, the technical feature "the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band" includes the following meaning: the configuration information of the first sub-band includes the time domain starting time slot and the number of time domain time slots of the full-duplex sub-band symbol.

[0484] As an embodiment, the technical feature "at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band" includes the following meaning: the first PDCCH occupies at least one time domain symbol for the first sub-band in the time domain.

[0485] As an embodiment, the technical feature "at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band" includes the following meaning: the first PDCCH occupies (or maps or configures) at least one SBFD symbol in the time domain.

[0486] As an embodiment, the technical feature "at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band" includes the following meaning: the first PDCCH occupies (or maps or configures) at least one SBFD symbol in the time domain and the second signal occupies (or maps or configures) at least one SBFD symbol in the time domain.

[0487] As an embodiment, the technical feature "at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band" includes the following meanings: at least one symbol occupied by the first PDCCH in the time domain overlaps with the SBFD symbol; or at least one symbol occupied by the second signal in the time domain overlaps with the SBFD symbol; or at least one symbol occupied by the first PDCCH in the time domain overlaps with the SBFD symbol and at least one symbol occupied by the second signal in the time domain overlaps with the SBFD symbol.

[0488] As an embodiment, the technical feature "at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band" includes the following meanings: the symbol type of at least one symbol occupied by the first PDCCH in the time domain is an SBFD symbol; or the symbol type of at least one symbol occupied by the second signal in the time domain is an SBFD symbol; or the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are both SBFD symbols.

[0489] Example 10

[0490] Embodiment 10 illustrates a schematic diagram of a third information block according to an embodiment of the present application, as shown in FIG10. In FIG10, the horizontal axis represents time, the rectangular area filled with cross lines represents the symbols for the full-duplex sub-band, and the third information block indicates that the sender of the third information block supports the random access procedure in the symbols for the full-duplex sub-band.

[0491] In embodiment 10, the third information block in the present application indicates that the sender of the third information block supports a random access procedure in symbols for a full-duplex sub-band.

[0492] As an embodiment, the technical feature "the third information block indicates that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band" includes the following meaning: the third information block indicates whether the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band.

[0493] As an embodiment, the technical feature "the third information block indicates that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band" includes the following meaning: all or part of the third information block is used to explicitly or implicitly indicate that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band.

[0494] As an embodiment, the technical feature "the third information block indicates that the sender of the third information block supports the random access process in the symbols for the full-duplex sub-band" includes the following meaning: the sender of the third information block is a device that supports SBFD, and the device that supports SBFD can perform a random access process on the SBFD symbols.

[0495] As an embodiment, the technical feature "the third information block indicates that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band" includes the following meaning: a parameter or field included in the third information block is equal to a given value and is used to indicate that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band.

[0496] As an embodiment, the technical feature "the third information block indicates that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band" includes the following meaning: the third information block includes a field indicating that the sender of the third information block supports the random access procedure in symbols for the full-duplex sub-band.

[0497] As an embodiment, the technical feature "the third information block indicates that the sender of the third information block supports the random access process in symbols for the full-duplex sub-band" includes the following meaning: the third information block indicates that the sender of the third information block has the ability of random access in symbols for the full-duplex sub-band.

[0498] Example 11

[0499] Embodiment 11 illustrates a schematic diagram of a synchronization broadcast block or channel state information reference signal associated with a first signal according to an embodiment of the present application, as shown in FIG11. In FIG11, the unfilled rectangular area represents an SSB, and #1 and #2 therein represent the index values ​​of the corresponding SSBs, respectively. The synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

[0500] In embodiment 11, the synchronization broadcast block or channel state information reference signal associated with the first signal in the present application depends on the symbol type of at least one symbol occupied by the first signal in the present application in the time domain.

[0501] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the synchronization broadcast block associated with the first signal or the index of the synchronization broadcast block corresponding to the channel state information reference signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

[0502] As an embodiment, the SSB associated with the PRACH is associated with the symbol type, thereby supporting independent mapping between PRACH and SSB for different symbol types, avoiding the impact on the random access beam of existing users, and ensuring backward compatibility.

[0503] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the synchronization broadcast block or channel state information reference signal associated with the first signal is related to the symbol type of at least one symbol occupied by the first signal in the time domain.

[0504] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the symbol type of at least one symbol occupied by the first signal in the time domain is used to determine the synchronization broadcast block or channel state information reference signal associated with the first signal.

[0505] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the symbol type of at least one symbol occupied by the first signal in the time domain is used to determine the synchronization broadcast block or channel state information reference signal associated with the random access preamble included in the first signal.

[0506] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the correspondence between the synchronization broadcast block or channel state information reference signal associated with the first signal and the symbol type of at least one symbol occupied by the first signal in the time domain is predefined or configurable.

[0507] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the PRACH opportunity for transmitting the first signal in the time domain.

[0508] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the PRACH opportunities located in the SBFD symbols and the PRACH opportunities located in the non-SBFD symbols are each mapped to the synchronization broadcast block or the channel state information reference signal.

[0509] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: the correspondence between the synchronization broadcast block or channel state information reference signal associated with the first signal and the symbol type of at least one symbol occupied by the PRACH opportunity for transmitting the first signal in the time domain is predefined or configurable.

[0510] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meanings: the symbol type of at least one time domain symbol occupied by the first signal in the time domain is a first type, the first type is one of a plurality of symbol types, a symbol of any one of the plurality of symbol types is associated with an SSB index in an SSB burst set, and the synchronization broadcast block or channel state information reference signal associated with the first signal is the synchronization broadcast block or channel state information reference signal corresponding to the SSB index associated with the first type. As an auxiliary embodiment of the above embodiment, the mutual association relationship (or corresponding relationship or mapping relationship) between any one of the plurality of symbol types and an SSB index is predefined or configured.

[0511] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meanings: the PRACH opportunities located in the SBFD symbols are associated with the SSB in sequence according to a given order, and the PRACH opportunities located in the non-SBFD symbols are also associated with the SSB in sequence according to a given order.

[0512] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes: the synchronization broadcast block index and the valid PRACH opportunity located in the SBFD symbol are mapped in sequence according to the mapping order of first the leading index in a PRACH opportunity, then the frequency resource index of the frequency-divided PRACH opportunity, then the time domain resource index of the time-divided PRACH opportunity in a PRACH time slot, and finally the index of the PRACH time slot; the synchronization broadcast block index and the valid PRACH opportunity located in the non-SBFD symbol are mapped in sequence according to the mapping order of first the leading index in a PRACH opportunity, then the frequency resource index of the frequency-divided PRACH opportunity, then the time domain resource index of the time-divided PRACH opportunity in a PRACH time slot, and finally the index of the PRACH time slot.

[0513] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes: the synchronization broadcast block is mapped in sequence according to the indexes of 0, 1... and the valid PRACH opportunities located in the SBFD symbol in the mapping order of first the leading index in a PRACH opportunity, then the frequency resource index of the frequency-divided PRACH opportunity, then the time domain resource index of the time-divided PRACH opportunity in a PRACH time slot, and finally the index of the PRACH time slot; the synchronization broadcast block is mapped in sequence according to the indexes of 0, 1... and the valid PRACH opportunities located in the non-SBFD symbol in the mapping order of first the leading index in a PRACH opportunity, then the frequency resource index of the frequency-divided PRACH opportunity, then the time domain resource index of the time-divided PRACH opportunity in a PRACH time slot, and finally the index of the PRACH time slot.

[0514] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meaning: when the first signal occupies (or is mapped or configured) an SBFD symbol in the time domain, the index of the synchronization broadcast block associated with the first signal or the synchronization broadcast block corresponding to the channel state information reference signal is the first SSB index; when the first signal occupies (or is mapped or configured) a non-SBFD symbol in the time domain, the index of the synchronization broadcast block associated with the first signal or the synchronization broadcast block corresponding to the channel state information reference signal is the second SSB index. As a subsidiary embodiment of the above embodiment, the first SSB index is an SSB Index and the second SSB index is an SSB Index. As a subsidiary embodiment of the above embodiment, the first SSB index is a non-negative integer and the second SSB index is a non-negative integer. As a subsidiary embodiment of the above embodiment, the first SSB index is not greater than 7 and the second SSB index is not greater than 7. As a subsidiary embodiment of the above embodiment, the first SSB index identifies an SSB and the second SSB index identifies an SSB. As a subsidiary embodiment of the above embodiment, the SSB identified by the first SSB index and the SSB identified by the second SSB index are transmitted in the same SSB burst set. As a subsidiary embodiment of the above embodiment, the value of the first SSB index is the same as the value of the second SSB index. As a subsidiary embodiment of the above embodiment, the value of the first SSB index is different from the value of the second SSB index.

[0515] As an embodiment, the technical feature "the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain" includes the following meanings: when the PRACH opportunity for transmitting the first signal belongs to the first type of PRACH opportunity, the index of the synchronization broadcast block associated with the first signal or the synchronization broadcast block corresponding to the channel state information reference signal is the first SSB index; when the PRACH opportunity for transmitting the first signal belongs to the second type of PRACH opportunity, the index of the synchronization broadcast block associated with the first signal or the synchronization broadcast block corresponding to the channel state information reference signal is the second SSB index; the first type of PRACH opportunity and the second type of PRACH opportunity are both associated with one SSB burst set. As a subsidiary embodiment of the above embodiment, the symbol type of at least one symbol occupied (or mapped or overlapped) in the time domain by any one of the PRACH opportunities included in the first type of PRACH opportunity is an SBFD symbol; the symbol type of at least one symbol occupied (or mapped or overlapped) in the time domain by any one of the PRACH opportunities included in the second type of PRACH opportunity is a non-SBFD symbol. As a subsidiary embodiment of the above embodiment, at least one symbol occupied (or mapped or overlapped) in the time domain by any PRACH opportunity included in the first type of PRACH opportunity is a non-SBFD symbol; and at least one symbol occupied (or mapped or overlapped) in the time domain by any PRACH opportunity included in the second type of PRACH opportunity is a SBFD symbol. As a subsidiary embodiment of the above embodiment, the PRACH opportunities included in the first type of PRACH opportunity and the second type of PRACH opportunity are both used to transmit PRACH. As a subsidiary embodiment of the above embodiment, the first type of PRACH opportunity and the second type of PRACH opportunity are respectively mapped to the same SSB burst set according to different RRC signaling configurations. As a subsidiary embodiment of the above embodiment, the first type of PRACH opportunity and the second type of PRACH opportunity are respectively mapped to the same SSB burst set according to different fields of the same RRC signaling. As a subsidiary embodiment of the above embodiment, the first SSB index is an SSB index and the second SSB index is an SSB index. As a subsidiary embodiment of the above embodiment, the first SSB index is a non-negative integer and the second SSB index is a non-negative integer. As a subsidiary embodiment of the above embodiment, the first SSB index is not greater than 7 and the second SSB index is not greater than 7. As a subsidiary embodiment of the above embodiment, the first SSB index identifies one SSB and the second SSB index identifies one SSB.As a subsidiary embodiment of the above embodiment, the SSB identified by the first SSB index and the SSB identified by the second SSB index are transmitted in the same SSB burst set. As a subsidiary embodiment of the above embodiment, the value of the first SSB index is the same as the value of the second SSB index. As a subsidiary embodiment of the above embodiment, the value of the first SSB index is different from the value of the second SSB index.

[0516] Example 12

[0517] Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to an embodiment, as shown in FIG12 . In FIG12 , the processing device 1200 in the first node includes a first transceiver 1201. The first transceiver 1201 includes the transmitter / receiver 456 (including the antenna 460), the receiving processor 452, and the controller / processor 490 in FIG4 of the present application.

[0518] In embodiment 12, the first transceiver 1201 receives a first information block, receives a first PDCCH, and sends a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble;

[0519] The first transceiver 1201 receives a second signal, where the second signal is associated with the RA-RNTI;

[0520] The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0521] As an embodiment, the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell, and the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0522] As an embodiment, when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

[0523] As an embodiment, the first transceiver 1201 receives a second information block; wherein, the second signal is scheduled by the PDCCH included in the PDCCH common search space set of type 1, the second information block indicates multiple TCI states, and the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain.

[0524] As an embodiment, the first information block indicates the configuration information of the first sub-band, the first sub-band is a full-duplex sub-band, and the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band; at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band.

[0525] As an embodiment, the first transceiver 1201 sends a third information block; wherein the third information block indicates that the sender of the third information block supports a random access procedure in symbols for a full-duplex sub-band.

[0526] As an embodiment, the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

[0527] Example 13

[0528] Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment, as shown in FIG13 . In FIG13 , the processing device 1300 in the second node includes a second transceiver 1301. The second transceiver 1301 includes the transmitter / receiver 416 (including the antenna 460), the transmit processor 415, and the controller / processor 440 in FIG4 of the present application.

[0529] In embodiment 13, the second transceiver 1301 sends a first information block, sends a first PDCCH and receives a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble;

[0530] The second transceiver 1301 sends a second signal, where the second signal is associated with the RA-RNTI;

[0531] The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

[0532] As an embodiment, the target reference signal is related to whether the non-competitive random access triggered by the first PDCCH is for a special cell, and the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

[0533] As an embodiment, when the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-competitive random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

[0534] As an embodiment, the second transceiver 1301 sends a second information block; wherein, the second signal is scheduled by the PDCCH included in the PDCCH common search space set of type 1, the second information block indicates multiple TCI states, and the target reference signal is a reference signal included in a TCI state among the multiple TCI states and corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain.

[0535] As an embodiment, the first information block indicates the configuration information of the first sub-band, the first sub-band is a full-duplex sub-band, and the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band; at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band.

[0536] As an embodiment, the second transceiver 1301 receives a third information block; wherein the third information block indicates that the sender of the third information block supports a random access procedure in symbols for a full-duplex sub-band.

[0537] As an embodiment, the synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

[0538] Those skilled in the art will appreciate that all or part of the steps in the above method can be performed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, the various module units in the above embodiment can be implemented in the form of hardware or software functional modules. This application is not limited to any specific combination of software and hardware. The first node or second node or UE or terminal in this application includes but is not limited to mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft, test equipment, test instruments, and other equipment. The base station equipment or base station or network-side equipment in this application includes but is not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes (TRPs), relay satellites, satellite base stations, aerial base stations, test equipment, test instruments, and other equipment.

[0539] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for wireless communication, characterized in that: include: A first transceiver receives a first information block, receives a first PDCCH, and sends a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble; A first transceiver receives a second signal, where the second signal is associated with the RA-RNTI; The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

2. The first node according to claim 1, wherein: The target reference signal is related to whether the non-contention random access triggered by the first PDCCH is for a special cell, and the first PDCCH indicates the time-frequency resources occupied by the first signal and the random access preamble included in the first signal.

3. The first node according to claim 1 or 2, characterized in that When the symbol type of at least one symbol occupied by the first PDCCH in the time domain is the same as the symbol type of at least one symbol occupied by the second signal in the time domain and the non-contention random access triggered by the first PDCCH is for a special cell, the target reference signal is the quasi-co-located reference signal of the first PDCCH; otherwise, the target reference signal is the reference signal associated with the random access or the target reference signal is the reference signal included in a configured TCI state.

4. The first node according to any one of claims 1 to 3, characterized in that: The first transceiver receives a second information block; wherein, the second signal is scheduled by a PDCCH included in a type 1 PDCCH common search space set, the second information block indicates multiple TCI states, and the target reference signal is a reference signal included in a TCI state among the multiple TCI states corresponding to the symbol type of at least one symbol occupied by the second signal in the time domain.

5. The first node according to any one of claims 1 to 4, characterized in that: The first information block indicates configuration information of the first sub-band, the first sub-band is a full-duplex sub-band, the configuration information of the first sub-band includes the resource blocks included in the first sub-band and the time domain symbols for the first sub-band; at least one of the symbol type of at least one symbol occupied by the first PDCCH in the time domain or the symbol type of at least one symbol occupied by the second signal in the time domain is a time domain symbol for the first sub-band.

6. The first node according to any one of claims 1 to 5, characterized in that: The first transceiver transmits a third information block, wherein the third information block indicates that a sender of the third information block supports a random access procedure in symbols for a full-duplex sub-band.

7. The first node according to any one of claims 1 to 6, characterized in that: The synchronization broadcast block or channel state information reference signal associated with the first signal depends on the symbol type of at least one symbol occupied by the first signal in the time domain.

8. A second node used for wireless communication, characterized in that: include: A second transceiver transmits a first information block, transmits a first PDCCH, and receives a first signal, wherein the first PDCCH is used to trigger the transmission of the first signal, and the first signal includes at least a random access preamble; A second transceiver sends a second signal, where the second signal is associated with the RA-RNTI; The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

9. A method in a first node for wireless communication, characterized in that: include: receiving a first information block, receiving a first PDCCH and sending a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble; receiving a second signal, the second signal being associated with the RA-RNTI; The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

10. A method used in a second node of wireless communication, characterized in that: include: Sending a first information block, sending a first PDCCH and receiving a first signal, where the first PDCCH is used to trigger the sending of the first signal, and the first signal includes at least a random access preamble; sending a second signal, where the second signal is associated with the RA-RNTI; The demodulation reference signal and the target reference signal of the second signal are quasi-co-located, and the target reference signal is related to whether the symbol type of at least one symbol occupied by the first PDCCH in the time domain and the symbol type of at least one symbol occupied by the second signal in the time domain are the same; the symbol type of at least one symbol occupied by the first PDCCH in the time domain depends on the first information block, and the symbol type of at least one symbol occupied by the second signal in the time domain depends on the first information block.

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