Transmission configuration determination method and device and storage medium

Abstract

The invention provides a transmission configuration determination method and device and a storage medium, relates to the technical field of communication, and is used for determining related configuration of messages in a random access process. The method comprises the following steps: determining a transmission configuration parameter of a message in a random access process based on a transmission mode of the message in the random access process; wherein the transmission modes comprise a first transmission mode and a second transmission mode, the first transmission mode requires that symbols of the same type are used in different time slots to bear messages, and the second transmission mode requires that symbols of different types are used in different time slots to bear messages; and sending a message in the random access process based on the transmission configuration parameter.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a transmission configuration determination method, device and storage medium. Background Art

[0002] In wireless communication networks, in order to improve spectrum efficiency and resource utilization, two duplex technologies, subband full duplex (SBFD) and in-band full duplex (IBFD), are introduced. SBFD technology allows uplink and downlink transmissions to be performed in different frequency bands or time slots, while IBFD technology can perform uplink and downlink transmissions simultaneously in the same frequency band and the same time slot. However, this flexible resource configuration also brings new challenges, especially in uplink transmission, including the initial random access phase and the triggered access process after accessing the network. Determining the relevant configurations of these uplink transmissions in the SBFD subband and IBFD subband to ensure that the relevant equipment can complete these processes efficiently and reliably has become an urgent problem to be solved. Summary of the invention

[0003] The embodiment of the present disclosure provides a transmission configuration determination method, device and storage medium for determining the relevant configuration of a message in a random access process. The technical solution provided by the embodiment of the present disclosure is as follows:

[0004] On the one hand, a method for determining a transmission configuration is provided, which is applied to a first node, and the method includes:

[0005] Determine, based on a transmission mode of the message in the random access process, a transmission configuration parameter of the message in the random access process; wherein the transmission mode includes a first transmission mode and a second transmission mode, the first transmission mode requires using the same type of symbols to carry messages in different time slots, and the second transmission mode requires using different types of symbols to carry messages in different time slots;

[0006] Based on the transmission configuration parameters, messages in the random access procedure are sent.

[0007] On the other hand, a transmission configuration determination method is provided, which is applied to a second node, and the method includes:

[0008] receiving a message in a random access process, wherein a transmission configuration parameter of the message in the random access process is determined based on a transmission mode of the message in the random access process;

[0009] The transmission mode includes a first transmission mode and a second transmission mode. The first transmission mode requires using the same type of symbols to carry messages in different time slots, and the second transmission mode requires using different types of symbols to carry messages in different time slots.

[0010] In another aspect, a method for determining a transmission configuration is provided, which is applied to a first node, and the method includes:

[0011] The first node receives configuration information of a first message in a two-step random access process, and the first node determines the first message based on the configuration information, wherein the first message is configured to include a physical random access channel resource and a physical uplink shared channel resource, and the physical random access channel resource and the physical uplink shared channel resource are configured to satisfy one of the following:

[0012] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0013] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0014] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0015] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the first symbol.

[0016] In another aspect, a transmission configuration determination method is provided, which is applied to a second node, and the method includes:

[0017] The first message in the two-step random access process is configured, where the first message is configured to include physical random access channel resources and physical uplink shared channel resources, and the physical random access channel resources and the physical uplink shared channel resources are configured to satisfy one of the following:

[0018] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0019] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0020] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0021] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the first symbol.

[0022] On the other hand, a transmission configuration determination device is provided, which is applied to a first node, and the device includes:

[0023] A processing module, configured to determine a transmission configuration parameter of a message in a random access process based on a transmission mode of the message in the random access process; wherein the transmission mode includes a first transmission mode and a second transmission mode, the first transmission mode requires using the same type of symbols to carry messages in different time slots, and the second transmission mode requires using different types of symbols to carry messages in different time slots;

[0024] The communication module is used to send messages in the random access process based on the transmission configuration parameters.

[0025] In another aspect, a transmission configuration determination device is provided, which is applied to a second node, and the device includes:

[0026] A communication module, configured to receive a message in a random access process, wherein a transmission configuration parameter of the message in the random access process is determined based on a transmission mode of the message in the random access process;

[0027] The transmission mode includes a first transmission mode and a second transmission mode. The first transmission mode requires using the same type of symbols to carry messages in different time slots, and the second transmission mode requires using different types of symbols to carry messages in different time slots.

[0028] In another aspect, a method for determining a transmission configuration is provided, which is applied to a first node, and the method includes:

[0029] A communication module, configured to receive configuration information of a first message in a two-step random access process; the first node determines the first message based on the configuration information, wherein the first message is configured to include a physical random access channel resource and a physical uplink shared channel resource, and the physical random access channel resource and the physical uplink shared channel resource are configured to satisfy one of the following:

[0030] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0031] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0032] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0033] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the first symbol.

[0034] In another aspect, a transmission configuration determination method is provided, which is applied to a second node, and the method includes:

[0035] A configuration module is used to configure a first message in a two-step random access process, where the first message is configured to include a physical random access channel resource and a physical uplink shared channel resource, and the physical random access channel resource and the physical uplink shared channel resource are configured to satisfy one of the following:

[0036] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0037] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0038] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0039] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the first symbol.

[0040] On the other hand, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store computer program instructions executable by the processor; when the processor executes the computer program instructions, the transmission configuration determination method of any of the above embodiments is implemented.

[0041] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed on a computer (such as a communication device or a transmission configuration determination device), the transmission configuration determination method of any of the above embodiments is implemented.

[0042] On the other hand, a computer program product is provided, which includes computer program instructions, and when the computer program instructions are executed, the transmission configuration determination method of any of the above embodiments is implemented.

[0043] The technical solution provided by the embodiment of the present disclosure adapts to different message transmission requirements during the random access process, and the transmission mode corresponding to the message can flexibly select the first transmission mode or the second transmission mode. Among them, the first transmission mode requires the use of the same type of symbols in different time slots, ensuring the consistency and reliability of the message, which is particularly suitable for business scenarios that require continuous and stable communication. The second transmission mode allows the use of different types of symbols in different time slots, providing higher network adaptability and dynamic adjustment capabilities, and can meet the needs of diversified businesses. By flexibly adjusting the corresponding transmission configuration parameters based on the message transmission mode, users are provided with more efficient, stable and flexible network access services, which significantly improves the utilization efficiency of network resources, thereby achieving overall optimization of network transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of an SBFD sub-band provided in an embodiment of the present disclosure;

[0045] Figure 2 A schematic diagram of another SBFD sub-band provided in an embodiment of the present disclosure;

[0046] Figure 3 A schematic diagram of an IBFD subband provided in an embodiment of the present disclosure;

[0047] Figure 4 A schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0048] Figure 5 A flow chart of a method for determining a transmission configuration provided by an embodiment of the present disclosure;

[0049] Figure 6 A flowchart of another transmission configuration determination method provided by an embodiment of the present disclosure;

[0050] Figure 7 A schematic diagram of a transmission configuration determination device provided in an embodiment of the present disclosure;

[0051] Figure 8 A schematic diagram of another transmission configuration determination device provided in an embodiment of the present disclosure;

[0052] Fig. 9 A schematic diagram of another transmission configuration determination device provided in an embodiment of the present disclosure;

[0053] Fig.10 A schematic diagram of another transmission configuration determination device provided in an embodiment of the present disclosure;

[0054] Fig.11 A schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0056] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "plurality" means two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0057] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0058] In order to improve the uplink (UL) coverage of a time division duplex (TDD) system, reduce the delay of UL transmission, and increase the capacity of UL transmission, a sub-band full-duplex technology is proposed.

[0059] In the prior art, a UL subband can be configured in part or all of a downlink (DL) symbol or an F symbol, but cannot be configured in a UL symbol.

[0060] Specifically, when a UL subband is configured in a DL symbol, the DL symbol may also be configured with a DL subband. This configuration that includes both UL subbands and DL subbands is called an SBFD subband. That is, the UL subband and the DL subband (also called an SBFD subband) are configured in the DL symbol at the same time.

[0061] In the DL BWP in the / slot and in the / F symbol, the symbol configured with the SBFD subband is called an SBFD symbol, and the symbol not configured with the SBFD subband is called a non-SBFD symbol.

[0062] It is worth noting that although SBFD subbands can contain UL subbands and DL subbands, they are prohibited from being configured in UL symbols. In this case, the UL bandwidth part (BWP) in the UL symbol is used for UL transmission, and the UL subband in the SBFD symbol is used for uplink transmission.

[0063] The SBFD subband generally includes at least one DL subband and one UL subband.

[0064] For example, in a 100MHz TDD carrier, 20 consecutive resource blocks (RBs) are configured as the UL subband in the DL BWP in the DL symbol / slot, and the remaining frequency domain resources of the DL BWP are the DL subband (the frequency domain gap between the UL subband and the DL subband may not be configured), or a DL subband is also configured in the DL BWP in the DL symbol / slot. In this way, in the DL symbol / slot, the UL subband can be used for UL transmission and the DL subband can be used for DL ​​transmission.

[0065] For example, Figure 1 As shown, one SBFD subband includes one UL subband and DL subband. This frequency domain pattern is generally called "DUD" (based on frequency domain structure).

[0066] For example, Figure 2 As shown, one SBFD subband includes a UL subband and a DL subband and the UL subband is located below the DL subband. This frequency domain pattern is generally referred to as "DU" (based on frequency domain structure).

[0067] At the current stage, sub-band full-duplex technology includes the following features: The base station (BS) has the ability to perform reception (in the UL sub-band) and transmission (in the DL sub-band) in the same time domain at the same time. The user equipment (UE) does not have the ability to perform reception (in the DL sub-band) and transmission (in the UL sub-band) in the same time domain at the same time. Here, the UL sub-band and the DL sub-band are configured in the same orthogonal frequency division multiplexing (OFDM) symbol / slot and are frequency-divided.

[0068] For the convenience of description, a symbol configured with an SBFD subband may be referred to as an SBFD symbol. A slot containing an SBFD symbol may be referred to as an SBFD slot. A symbol not configured with an SBFD subband may be referred to as a non-SBFD symbol (that is, a regular symbol). A slot not containing an SBFD symbol may be referred to as a non-SBFD slot.

[0069] In order to further improve the system efficiency, full-duplex technology is studied, such as IBFD operation, that is, a time-frequency resource is configured in the carrier bandwidth of a carrier, in which the base station can perform simultaneous co-frequency transmission and reception. For example, continuous PRBs are configured in the carrier bandwidth as an IBFD subband, and the IBFD subband is configured in all or part of the symbols, thereby forming a resource for IBFD operation.

[0070] For example, Figure 3 The diagram is a schematic diagram of an IBFD subband. Part or all of a carrier bandwidth of a carrier is configured with an IBFD subband, and the IBFD is configured in all or part of the symbols.

[0071] For the convenience of description, a symbol configured with an IBFD subband is called an IBFD symbol. A slot containing an IBFD symbol is called an IBFD slot. A symbol not configured with an IBFD subband is called a non-IBFD symbol (that is, a regular symbol). A slot not containing an IBFD symbol is called a non-IBFD slot.

[0072] It can be understood that, based on the operation of SBFD subband, UL transmission is only performed in the UL subband, and DL transmission is only performed in the DL subband. Based on the operation of IBFD subband, UL transmission and DL transmission are performed simultaneously and co-frequency in the IBFD subband, that is, the base station performs UL reception and DL transmission in the same resource and frequency domain at the same time.

[0073] The following issues are the same in SBFD subbands and IBFD subbands, so the following description takes SBFD subbands as an example. That is, the SBFD subbands in the following description can be replaced by IBFD subbands, or the UL subbands or DL ​​subbands in the following description can be replaced by IBFD subbands.

[0074] However, this flexible resource configuration also brings new challenges, especially in uplink transmission, including the initial random access phase and the triggered access process after accessing the network. Determining the relevant configuration of these uplink transmissions in the SBFD subband and IBFD subband to ensure that the relevant equipment can complete these processes efficiently and reliably has become an urgent problem to be solved. The following is a solution to this problem to support UL public transmission in the UL subband.

[0075] In mobile communication systems, the random access process is a key step for initial connection establishment or reconnection between UE and base station. This process can be divided into four-step random access and two-step random access, depending on system configuration and scenario requirements.

[0076] Among them, the messages in the four-step random access process include at least the following message types:

[0077] msg1: refers to the first message in the four-step access process, that is, a random access sequence is transmitted in a physical random access channel (PRACH) resource. It is used to notify the base station that the UE wants to establish a connection and allow the base station to estimate the UE's uplink timing.

[0078] msg3: refers to the third message in the four-step access process, a message (i.e. a special PUSCH) is sent on the physical uplink shared channel (PUSCH) scheduled by the random access response (RAR) uplink grant (UL grant). msg3 usually contains the UE's identity (such as the radio resource control (RRC) connection request), the UE's timing advance, etc. It is used to complete the connection establishment between the UE and the base station, including identity authentication and resource configuration.

[0079] The physical uplink control channel (PUCCH) of msg4 refers to the acknowledgment (ACK) information corresponding to the fourth message msg4 (i.e., a PDSCH) in the four-step access process. For example, the base station sends a message (msgB) to the UE via the PDSCH, and the UE needs to provide hybrid automatic repeat request acknowledgment (HARQ-ACK) information for the msg4 via the PUCCH.

[0080] Among them, the messages in the two-step random access process include at least the following message types:

[0081] msgA: refers to the first message in the two-step random access process, that is, it consists of a PRACH and a PUSCH corresponding to the PRACH. msgA also contains the random access preamble sequence and other information that the UE wants to send (such as RRC connection request).

[0082] PUCCH of msgB: refers to the ACK information corresponding to the second message msgB (ie, a PDSCH) in the two-step access process, that is, the UE needs to provide HARQ-ACK information for the msgB through a PUCCH resource.

[0083] There are two transmission modes:

[0084] Mode 1: means that UL transmission / DL reception is restricted to only SBFD symbols or only non-SBFD symbols in different slots. For example, if UL transmission / DL reception is restricted to only SBFD symbols in different slots, then all transmissions (including repeated transmissions and periodic transmissions) of the UL transmission / DL reception can only be in SBFD symbols. For example, if UL transmission / DL reception is restricted to only non-SBFD symbols in different slots, then all transmissions (including repeated transmissions and periodic transmissions) of the UL transmission / DL reception can only be in non-SBFD symbols. Furthermore, if mode 1 is configured, some methods are needed to determine the valid symbol type corresponding to the UL transmission / DL reception (i.e., it is performed only in SBFD symbols or it is performed only in non-SBFD symbols), and UL transmission / DL reception is performed only in symbols corresponding to the valid symbol type.

[0085] Mode 2: UL transmission / DL reception can use SBFD symbols and non-SBFD symbols in different slots. For example, one transmission (periodic or repeated transmission) of UL transmission / DL reception is in the SBFD symbol of slot n, and another transmission of the UL transmission / DL reception can be in the non-SBFD symbol of slot m.

[0086] Among them, to adapt to different message transmission requirements during random access, the above-mentioned mode 1 or mode 2 can be flexibly selected as the message transmission mode during random access. How to flexibly adjust the corresponding transmission configuration based on the message transmission mode during random access to ensure that the relevant equipment can efficiently and reliably complete the random access process requires further research.

[0087] In view of this, the present disclosure provides a method for determining a transmission configuration, which method includes: determining the transmission configuration parameters of the message during the random access process based on the transmission mode of the message during the random access process; wherein the transmission mode includes a first transmission mode (for example, the above-mentioned mode 1) and a second transmission mode (for example, the above-mentioned mode 2), the first transmission mode requires the use of the same type of symbols to carry messages in different time slots, and the second transmission mode requires the use of different types of symbols to carry messages in different time slots; based on the transmission configuration parameters, sending the message during the random access process.

[0088] In this way, during the random access process, due to different message transmission requirements, the transmission mode corresponding to the message can flexibly select the first transmission mode or the second transmission mode to carry the message. The first transmission mode requires the use of the same type of symbols in different time slots, ensuring the consistency and reliability of the message, which is particularly suitable for business scenarios that require continuous and stable communication. The second transmission mode allows the use of different types of symbols in different time slots, providing higher network adaptability and dynamic adjustment capabilities, and can meet the needs of diversified services. By flexibly adjusting the corresponding transmission configuration parameters based on the message transmission mode, users are provided with more efficient, stable and flexible network access services, which significantly improves the utilization efficiency of network resources, thereby achieving overall optimization of network transmission.

[0089] The transmission configuration determination method provided in the embodiment of the present disclosure can be applied to systems of various communication formats. For example, the transmission configuration determination method provided in the embodiment of the present disclosure can be applied to systems including, but not limited to, long-term evolution (LTE) systems, various versions based on LTE evolution, fifth-generation (5th generation, 5G) communication systems, wireless local area networks (wireless fidelity, Wi-Fi) systems, third-generation partnership projects (third generation partnership project, 3GPP)-related communication systems, ambient internet of things (ambient IoT) systems, or systems integrating multiple systems. In addition, the transmission configuration determination method provided in the embodiment of the present disclosure can also be applied to future-oriented communication systems (such as 6G communication systems), etc., and the embodiment of the present disclosure is not limited to this.

[0090] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) in the disclosed embodiment may include at least a first communication node and a second communication node. It should be understood that in this example, in the downlink, the first communication node may be a network side device (for example, including but not limited to a base station), and the second communication node may be a terminal side device (for example, including but not limited to a terminal). Of course, in the uplink, the first communication node may also be a terminal side device, and the second communication node may also be a network side device. In the device-to-device communication between the two communication nodes, the first communication node and the second communication node may both be a base station or a terminal. The first communication node and the second communication node may be referred to as the first node and the second node, respectively.

[0091] Exemplarily, taking the first node as a terminal and the second node as a base station as an example, Figure 41 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure, and the communication system includes a terminal 10 and a base station 20. The terminal 10 and the base station 20 may be one or more, and the number is not limited.

[0092] The terminal 10 is in communication connection with the base station 20. The terminal may be a terminal side device (for example, including but not limited to a terminal), an Internet of Things device, etc., and the base station may be a network side device (for example, including but not limited to a base station), an access network device, etc.

[0093] In some embodiments, the terminal 10 may be a device with wireless transceiver function. The terminal may be a passive device, an ambient loT device, a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, UE, access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent or UE device, etc., which is not limited in the embodiments of the present disclosure.

[0094] In some embodiments, the base station 20 can be a base station or an evolved base station (eNB or eNodeB) in LTE, long term evolution advanced (LTEA), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RISs), routers, relays, TRPs, wireless fidelity (WIFI) devices, UEs and other network side devices. The embodiments of the present disclosure are not limited to this.

[0095] It should be noted that Figure 4 This is just an exemplary framework diagram. Figure 4 The number of devices included in the Figure 4 In addition to the devices shown, the communication system may also include other devices, such as core network devices.

[0096] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0097] The present disclosure provides a method for determining a transmission configuration, which is applied to a first node. Figure 5 As shown, the method comprises the following steps:

[0098] S101. Determine a transmission configuration parameter of a message in a random access process based on a transmission mode of the message in the random access process.

[0099] The transmission mode includes a first transmission mode and a second transmission mode. The first transmission mode requires using the same type of symbols to carry messages in different time slots, and the second transmission mode requires using different types of symbols to carry messages in different time slots.

[0100] In some embodiments, the type of symbol includes a first symbol and a second symbol, the first symbol includes a sub-band full-duplex symbol (SBFD symbol) and an in-band full-duplex symbol (IBFD symbol), and the second symbol includes a non-sub-band full-duplex symbol (non-SBFD symbol) and a non-in-band full-duplex symbol (non-IBFD symbol). In some embodiments, the message is the third message (msg3) in the four-step random access process, and the transmission configuration parameter includes at least one of the following:

[0101] Valid symbol types for msg3;

[0102] Valid symbol type for retransmitted msg3;

[0103] The power corresponding to msg3;

[0104] The power corresponding to the retransmission of msg3;

[0105] The transmission time slot of msg3.

[0106] It can be understood that msg3 is transmitted in symbols corresponding to valid symbol types, and is not transmitted in symbols corresponding to non-valid symbol types.

[0107] In some embodiments, the transmission mode is the first transmission mode, and the valid symbol type of msg3 (including msg3 with repetition) is determined based on one of the following methods:

[0108] Option 1-1: The symbol type of the symbol where msg3 is first transmitted is a valid symbol type of msg3, wherein the first transmission includes the first repeated transmission of msg3.

[0109] For example, for msg3 with N (N is greater than 0) repetitions, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the first repetition of the msg3 is located is determined as the valid symbol type of the msg3. The slot position where the first repetition of the msg3 is located and the symbol position in the slot (including the number of symbols and the symbol position) are indicated by the base station, for example, based on the indication of the random access response uplink grant (RAR UL grant). All repetitions of the msg3 can only be transmitted in the symbol corresponding to the valid symbol type of the msg3 (not described one by one later).

[0110] For msg3 without repetition, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the msg3 is located is determined as the valid symbol type of the msg3. The slot position where the first repetition of the msg3 is located and the symbol position in the slot (including the number of symbols and symbol positions) are indicated by the base station, for example, based on the RAR UL grant indication.

[0111] Msg3 is transmitted in the symbol corresponding to the valid symbol type, and the transmission parameters associated with the msg3 (including but not limited to power control parameters, beam parameters, and frequency hopping parameters) are used using the valid symbol type, which will not be described in detail later.

[0112] Option 1-2: Indicate the valid symbol type of msg3 based on the first indication information, and the first indication information is carried in the RAR UL grant.

[0113] For example, the base station indicates the valid symbol type of msg3 in the RAR UL grant for scheduling msg3 (including msg3 with N repetitions). For example, a parameter is introduced in the RAR UL grant to indicate the valid symbol type of msg3.

[0114] In some embodiments, the first indication information is carried in a random access response uplink grant RAR UL grant, and includes at least one of the following:

[0115] Alt1-1: The first indication information is determined based on the channel state information request CSI-request field in the random access response uplink grant. For example, the CSI request field in the RAR UL grant is 1 bit, which is set to 1 (or 0) to indicate that the valid symbol type of msg3 in the first transmission mode is an SBFD symbol, and is set to 0 (or 1) to indicate that the valid symbol type of msg3 in the first transmission mode is a non-SBFD symbol. This method does not increase the signaling overhead in the RAR UL grant.

[0116] Alt1-2: The first indication information is determined based on the physical uplink shared channel time resource allocation (PUSCH time resource allocation) field in the random access response uplink grant. For example, in the time domain resource allocation table associated with msg3, the base station configures a symbol type for one or more (candidate) time domain resources. The base station and the UE agree that if a time domain resource is allocated to msg3 from the table, the symbol type associated with the time domain resource is used as the valid symbol type of msg3 in the first transmission mode.

[0117] Alt1-3: the first indication information is determined based on the physical uplink shared channel frequency domain resource allocation (PUSCH frequency resource allocation) field in the random access response uplink grant;

[0118] Alt1-4: The first indication information is determined based on the modulation and coding scheme (MCS) field in the random access response uplink grant;

[0119] Alt1-5: The first indication information is determined based on a transmission power control command for a physical uplink shared channel (TPC command for PUSCH) field in a random access response uplink grant.

[0120] It should be noted that the above RAR UL grant can be transmitted based on the MAC CE format in PDSCH, or based on the DCI format 0_0 in PDCCH. For details, please refer to the relevant standards. Regardless of the method, the above examples (Alt1-1 to Alt1-5) can be supported.

[0121] Option 1-3: The valid symbol type of msg3 is the same as the symbol type of the symbol used by the first message (hereinafter referred to as msg1).

[0122] For example, the base station and the UE agree that, in the first transmission mode, the effective symbol type of msg3 (including the symbol with N (N is greater than 0) repetitions) is the same as the symbol type used by the UE to transmit msg1.

[0123] Option 1-4: Configure the valid symbol type of msg3 through RRC signaling.

[0124] For example, the base station and the UE agree that for the UE (including idle / inactivated UE and connected UE), the valid symbol type of msg3 (including msg3 with N repetitions) in the first transmission mode is configured in the BWP-UplinkCommon message or the PUSCH-ConfigCommon message or the PUSCH-PowerControl message or the RACH-ConfigCommon message or SIB1.

[0125] In some embodiments, the transmission mode is the first transmission mode, and the valid symbol type of the retransmitted msg3 (including msg3 with repetition) is determined based on one of the following methods:

[0126] Option 2-1: The valid symbol type for retransmitting msg3 is the symbol type of the symbol in which msg3 is first repeatedly transmitted.

[0127] For example, for a retransmitted msg3 with N (N is greater than 0) repetitions, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the first repetition of the msg3 is located is determined as the valid symbol type of the msg3. The slot position where the first repetition of the msg3 is located and the symbol position in the slot (including the number of symbols and symbol positions) are indicated by the base station, for example, based on the RAR UL grant indication. All repetitions of the msg3 can only be transmitted in the symbol corresponding to the valid symbol type of the msg3 (not described one by one later).

[0128] For a retransmitted msg3 without a repeated msg3, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the msg3 is located is determined as a valid symbol type of the msg3. The slot position where the first repetition of the msg3 is located and the symbol position in the slot (including the number of symbols and the symbol position) are both indicated by the base station, for example, based on the RAR UL grant indication.

[0129] The retransmitted msg3 is transmitted in the symbol corresponding to the valid symbol type, and the transmission parameters associated with the msg3 (including but not limited to power control parameters, beam parameters, frequency hopping parameters) are used using the valid symbol type, which will not be described in detail later.

[0130] Option 2-2: The valid symbol type of the retransmitted msg3 (including the symbol type with N (N is greater than 0) repetitions) is the same as the symbol type used by msg1.

[0131] Option 2-3: Indicate a valid symbol type for retransmitting the third message based on second indication information, where the second indication information is carried in downlink control information (DCI) scrambled by a temporary cell radio network temporary identifier (TC RNTI).

[0132] For example, the base station and the UE agree that the DCI (eg, DCI0_0 format) of the scheduled retransmission of msg3 (including msg3 with N repetitions) indicates the valid symbol type of the retransmitted msg3 in the first transmission mode, wherein the DCI is scrambled by TC-RNTI.

[0133] In some embodiments, the second indication information is carried in the downlink control information scrambled by the TC_RNTI, and includes at least one of the following:

[0134] Alt2-1: The second indication information is determined based on the new data indicator field in the downlink control information scrambled by TC_RNTI.

[0135] For example, the "New data indicator" field in the DCI0_0 format is reinterpreted. The "New data indicator" field in the DCI0_0 format is 1 bit. By setting it to 1 (or 0), it indicates that the valid symbol type of msg3 in the first transmission mode is an SBFD symbol. By setting it to 0 (or 1), it indicates that the valid symbol type of msg3 in the first transmission mode is a non-SBFD symbol. This method does not increase the signaling overhead in the RAR UL grant. Among them, the "New data indicator" is originally used to indicate whether new data is scheduled.

[0136] Alt2-2: The second indication information is determined based on the hybrid automatic repeat request process number (HARQ process number) field in the downlink control information scrambled by TC_RNTI.

[0137] For example, the "HARQ process number" field in the DCI0_0 format is reinterpreted. The "HARQ process number" field in the DCI0_0 format is 4 bits. By setting the highest bit (or lowest bit) 1 bit to 1 (or 0), it indicates that the valid symbol type of msg3 in the first transmission mode is an SBFD symbol. By setting it to 0 (or 1), it indicates that the valid symbol type of msg3 in the first transmission mode is a non-SBFD symbol. It is also possible to set the state of the 4 bits and use 2 states to correspond to the two symbol types. This method does not increase the signaling overhead in the RAR UL grant. Among them, the "HARQ process number" was originally used to indicate the HARQ process number used by the scheduled data.

[0138] Alt2-3: The second indication information is determined based on a new field in the downlink control information scrambled by TC_RNTI, wherein bits corresponding to the new field use part of the bits of the padding field, wherein the part of the bits includes part of the bits being 1 bit and being located at the second lowest bit among all bits of the downlink control information.

[0139] For example, a parameter is added to the DCI0_0 format to indicate the valid symbol type of msg3 in the first transmission mode. In response to the DCI0_0 being scrambled by the TC-RNTI, there are multiple padding bits in the DCI0_0, wherein a padding bit can be set to indicate the valid symbol type of the msg3 under the configuration. The 1 padding bit is located at the second lowest bit (in order from low to high) in the DCI0_0 format. This position is conducive to effectively identifying the 1 padding bit from DCI0_0, and does not affect the bit positions of other parameter fields in the DCI0_0 format.

[0140] Alt2-4: The second indication information is determined based on the physical uplink shared channel time resource allocation (PUSCH time resource allocation) field in the downlink control information scrambled by TC_RNTI.

[0141] For example, in the time domain resource allocation table associated with msg3, the base station configures a symbol type for one or more (candidate) time domain resources. The base station and the UE agree that if a time domain resource is allocated to msg3 from the table, the symbol type associated with the time domain resource is used as the valid symbol type of msg3 in the first transmission mode.

[0142] Alt2-5: The second indication information is determined based on a physical uplink shared channel frequency domain resource allocation (PUSCH frequency resource allocation) field in the downlink control information.

[0143] Alt2-6: The second indication information is determined based on the modulation and coding scheme (MCS) field in the downlink control information.

[0144] Alt2-7: The second indication information is determined based on a transmission power control command for a physical uplink shared channel (TPC command for PUSCH) field in the downlink control information.

[0145] Option 2-4: Configure the valid symbol type for retransmitting msg3 through RRC signaling.

[0146] For example, the base station and the UE agree that for the UE (including idle / inactivated UE and connected UE), the valid symbol type of the retransmitted msg3 (including msg3 with N repetitions) in the first transmission mode shall be configured in the BWP-UplinkCommon message or the PUSCH-ConfigCommon message or the PUSCH-PowerControl message or the RACH-ConfigCommon message or SIB1.

[0147] The following is a rule for determining the transport block size (TBsize) of the (retransmitted) msg3 in response to the valid symbol type of msg3 being the SBFD symbol:

[0148] In response to a (retransmitted) msg3 whose valid symbol type is a SBFD symbol, the TB size of the msg3 is determined based on one of the following: the number of PRBs in the allocated PRBs and in the UL available PRBs; the number of PRBs in the allocated PRBs and in the UL available initial PRBs; the allocated PRBs (including PRBs beyond the UL available (initial) PRBs). Among them, the UL available PRBs are the intersection PRBs of the UL subband and the activated UL BWP in the frequency domain; the UL available initial PRBs are the intersection PRBs of the UL subband and the initial UL BWP in the frequency domain.

[0149] In some embodiments, the transmission mode is the first transmission mode, the third message is transmitted only in symbols corresponding to the determined valid symbol type, and the power of the third message is determined based on the third indication information.

[0150] The third indication information satisfies at least one of the following:

[0151] In response to the valid symbol type of the third message being the first symbol, the third indication information is parsed based on a power control parameter / table configured for the third message and associated with the first symbol; or,

[0152] In response to the valid symbol type of the third message being the second symbol, the third indication information is parsed based on a power control parameter / table configured for the third message and associated with the second symbol;

[0153] In response to the third message being initially transmitted, the third indication information is determined to be based on a transmission power control command (TPC command for PUSCH) field of a physical uplink shared channel in the RAR UL grant; or,

[0154] In response to the third message being retransmitted, the third indication information is determined based on a transmission power control command for a physical uplink shared channel (TPC command for PUSCH) field in the downlink control information.

[0155] Exemplarily, with respect to the power determination of the initial transmission msg3, the base station and the UE agree that, for msg3 (including msg3 with repetitions), in the first transmission mode, the "TPC command for scheduledPUSCH" field in the RAR UL grant or DCI0_0 format is interpreted as the valid symbol type of msg3. For example, the base station configures relevant power control parameters or tables for SBFD symbols and non-SBFD symbols, respectively. If the valid symbol type of msg3 is determined to be a SBFD symbol, the "TPC command for scheduled PUSCH" field in the RAR UL grant or DCI0_0 format corresponding to the msg3 is understood as the power control parameter or table configured based on the SBFD symbol. If the valid symbol type of msg3 is determined to be a non-SBFD symbol, the "TPC command for scheduled PUSCH" field in the RAR UL grant or DCI0_0 format corresponding to the msg3 is understood as the power control parameter or table configured based on the non-SBFD symbol.

[0156] Exemplarily, for the power determination of the retransmitted msg3, the base station and the UE agree to introduce a parameter in the DCI0_0 format encrypted by TC-RNTI, which is used to indicate the corresponding power control parameters when msg3 (including msg3 with N repetitions) is retransmitted. For example, a new "TPC command for scheduled PUSCH" field is introduced for the retransmission of msg3 in the SBFD symbol.

[0157] Examples include one of the following:

[0158] For example 1, the "HARQ process number" field in the DCI0_0 format is reinterpreted to determine the power control parameters of the msg3 when it is transmitted in the SBFD symbol. Here it is assumed that the original "TPC command for scheduled PUSCH" in the DCI0_0 format is used as the power control parameter of msg3 when it is transmitted in the non-SBFD symbol. And vice versa. For example, the "HARQ process number" field in the DCI0_0 format is 4 bits, and the highest (or lowest) 2 bits are set as the "TPC command for scheduled PUSCH" for msg3 when it is transmitted in the SBFD symbol. Among them, the "HARQ process number" was originally used to indicate the HARQ process number used by the scheduled data.

[0159] For example, in example 2, a parameter is added to the DCI0_0 format to indicate the "TPC command for scheduled PUSCH" when the retransmitted msg3 is transmitted in the SBFD symbol. For example, two padding bits are set to indicate the "TPC command for scheduled PUSCH" when the msg3 is transmitted in the SBFD symbol. The two padding bits are located at the second lowest bit and the third lowest bit (in order from low to high) in the DCI0_0 format. This position is conducive to effectively identifying the two padding bits from DCI0_0, and does not affect the bit positions of other parameter fields in the DCI0_0 format.

[0160] In some embodiments, the transmission mode is the second transmission mode, the third message is transmitted in the first symbol and the second symbol at the same time, and the power of the third message is determined based on the third indication information.

[0161] The target type symbol is a first symbol, and the non-target type symbol is a second symbol; or the non-target type symbol is a second symbol, and the target type symbol is a first symbol;

[0162] When the third message is transmitted in the target type symbol, the third indication information is parsed based on the power control parameter / table configured by the third message and associated with the target type symbol; or,

[0163] When the third message is transmitted in a non-target type symbol, the power of the third message is determined based on an offset and third indication information parsed based on a power control parameter / table associated with the target type symbol;

[0164] In response to the third message being initially transmitted, the third indication information is determined to be based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the RAR UL grant; or,

[0165] In response to the third message being retransmitted, the third indication information is determined to be based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the downlink control information.

[0166] In some embodiments, the offset is determined based on at least one of: radio resource control signaling RRC, a second message in a four-step random access process, and a channel state information request CSI-request field in a random access response uplink grant.

[0167] Exemplarily, the base station and the UE agree that, for msg3 (including msg3 with repetitions), in the second transmission mode, the "TPC command for scheduled PUSCH" field in the RAR UL grant or DCI0_0 format is interpreted based on the msg3 being transmitted in a non-SBFD symbol. Then an offset offset is introduced, and the corresponding power of the msg3 transmitted in the SBFD symbol is determined based on the offset and the power determined in the non-SBFD symbol. That is, there is an offset between the power used when msg3 is transmitted in the SBFD symbol and in the non-SBFD symbol. The offset can be configured by RRC or the offset is configured in msg2. The above-mentioned CSI request can also be used to indicate the offset from two offset sets configured by RRC signaling.

[0168] In some embodiments, the message is the third message in a four-step random access process, and the transmission mode of the (retransmitted) third message (with N (N>0) repetitions) is determined based on fourth indication information, and the fourth indication information is used to indicate that the transmission mode of the third message is the first transmission mode or the second transmission mode, and the fourth indication information is determined based on the RAR UL grant or the downlink control information encrypted by TC_RNTI (for example, DCI0_0).

[0169] In some embodiments, the fourth indication information is determined based on the RAR UL grant or the downlink control information scrambled by the TC_RNTI, including one of the following:

[0170] Alt3-1: The fourth indication information is determined based on the channel state information request CSI-request field in the RAR UL grant.

[0171] Alt3-2: The fourth indication information is determined based on the new data indication New data indicator field in the downlink control information.

[0172] Alt3-3: The fourth indication information is determined based on the hybrid automatic repeat request process number HARQ process number field in the downlink control information.

[0173] Alt3-4: The fourth indication information is determined based on a new field in the downlink control information, wherein bits corresponding to the new field use part of the bits of the padding field, wherein the part of the bits includes part of the bits being 1 bit and being located at the second lowest bit among all bits of the downlink control information.

[0174] For example, the base station and the UE agree that the transmission mode of indicating (retransmitting) msg3 (including with repetition) in the TC-RNTI-scrambled DCI0_0 is the first transmission mode or the second transmission mode. The TC-RNTI-scrambled DCI0_0 is used to schedule the retransmitted msg3. For example, one of the following examples is specifically included:

[0175] For example, 1, the "New data indicator" field in the DCI0_0 format is reinterpreted to determine whether the msg3 is configured as the first transmission mode or the second transmission mode. For example, the "New data indicator" field in the DCI0_0 format is 1 bit, which is set to 1 (or 0) to indicate that the msg3 is in the first transmission mode, and is set to 0 (or 1) to indicate that the msg3 is in the second transmission mode. This method does not increase the signaling overhead in the RAR UL grant. Among them, the "New data indicator" was originally used to indicate whether new data is scheduled.

[0176] For example 2, the "HARQ process number" field in the DCI0_0 format is reinterpreted to determine whether the msg3 is configured as the first transmission mode or the second transmission mode. For example, the "HARQ process number" field in the DCI0_0 format is 4 bits. By setting the highest bit (or lowest bit) 1 bit to 1 (or 0), it indicates that the msg3 is in the first transmission mode, and by setting it to 0 (or 1), it indicates that the msg3 is in the second transmission mode. It is also possible to set the state of the 4 bits and use 2 states to correspond to the first transmission mode and the second transmission mode. This method does not increase the signaling overhead in the RAR UL grant. Among them, the "HARQ process number" was originally used to indicate the HARQ process number used by the scheduled data.

[0177] For example 3, a parameter is added to the DCI0_0 format to indicate that msg3 is configured as the first transmission mode or the second transmission mode. In response to the DCI0_0 being scrambled by the TC-RNTI, there are multiple padding bits in the DCI0_0, among which a padding bit can be set to indicate that msg3 is configured as the first transmission mode or the second transmission mode. The 1 padding bit is located in the second lowest bit (in order from low to high) in the DCI0_0 format. This position is conducive to effectively identifying the 1 padding bit from DCI0_0, and does not affect the bit positions of other parameter fields in the DCI0_0 format.

[0178] Alt3-5: the fourth indication information is determined based on the physical uplink shared channel time resource allocation PUSCH time resource allocation field in the RAR UL grant or downlink control information;

[0179] Alt3-6: the fourth indication information is determined based on the physical uplink shared channel frequency domain resource allocation PUSCH frequency resource allocation field in the RAR UL grant or downlink control information;

[0180] Alt3-7: the fourth indication information is determined based on the modulation and coding scheme MCS field in the RAR UL grant or downlink control information;

[0181] Alt3-8: The fourth indication information is determined based on the transmission power control command TPC command for PUSCH domain of the physical uplink shared channel in the RAR UL grant or downlink control information.

[0182] In some embodiments, when the third message is a third message that is repeatedly sent N times, the transmission mode of the third message is the first transmission mode, and the valid symbol type of the third message is the second symbol, the transmission time slot of the third message is N time slots starting from the first time slot, and N is a positive integer;

[0183] Wherein, for each of the N time slots, the time slot satisfies at least one of the following (Rule 1):

[0184] The symbol where the third message is located in the time slot does not include the configured downlink symbol;

[0185] The symbol where the third message is located in the time slot does not include the symbol of the synchronization signal block (SSB);

[0186] The symbol where the third message is located in the time slot does not include the configured first symbol;

[0187] Among them, the downlink symbol is configured by the time division duplex uplink and downlink configuration common parameter tdd-UL-DL-ConfigurationCommon;

[0188] The SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

[0189] That is to say, starting from the first time slot, if the symbols provided for the repetition of the msg3 in a slot do not contain the DL symbols configured by tdd-UL-DL-ConfigurationCommon (not configured with SBFD subband), or do not contain the SSB symbols indexed by ssb-PositionsInBurst, or do not contain the symbols configured with SBFD subband, then the slot is counted as one of the N slots. That is to say, starting from the first time slot, if the symbols provided for the repetition of the msg3 in a slot are: symbols not configured with SBFD subband, and are F symbols or UL symbols, and are not SSB symbols indexed by ssb-PositionsInBurst, then the slot is counted as one of the N slots.

[0190] In some embodiments, when the third message is a third message that is repeatedly sent N times, the transmission mode of the third message is the first transmission mode, and the valid symbol type of the third message is the first symbol, the transmission time slot of the third message is N time slots starting from the first time slot, and N is a positive integer;

[0191] Among them, for each of the N time slots, the symbol where the third message in the time slot is located is the configured first symbol, and the symbol where the third message in the time slot is located does not contain the SSB symbol (Rule 2); SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

[0192] In some embodiments, when the third message is a third message that is repeatedly sent N times and the transmission mode of the third message is the second transmission mode, the transmission time slot of the third message is N time slots starting from the first time slot, where N is a positive integer;

[0193] Among them, for each of the N time slots, the symbol where the third message in the time slot is located is a SBFD symbol or a flexible symbol or an uplink symbol, and the symbol where the third message in the time slot is located does not include an SSB symbol; SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst (Rule 3). That is, if a slot satisfies the above Rule 1, or satisfies the above Rule 2, the slot is counted as one of the N slots.

[0194] In some embodiments, the first time slot is determined by:

[0195] A=slot n+k 2 +Δ+2 μ ·K cell,offset

[0196] Where A is the first time slot, slot n is the time slot where the end of the received physical uplink shared channel PDSCH carrying the random access response message RAR message is located, and k 2 is defined based on the subcarrier spacing used by the third message, is determined based on the time domain resource allocation table of the third message, Δ is defined based on the subcarrier spacing used by the third message, K cell,offset is a cell-specific offset, defined based on the parameter

[0197] cellSpecificKoffset,u is the subcarrier spacing of the third message.

[0198] Exemplarily, Table 1 provides the values ​​of Δ corresponding to different subcarrier spacings (μ).

[0199] Table 1

[0200] μ(PUSCH) Δ 0 2 1 3 2 4 3 6 5 24 6 48

[0201] In some embodiments, the message is a first message in a two-step random access process, and the transmission configuration parameter includes a transmission time slot of the first message.

[0202] In some embodiments, when the first message is a first message that is repeatedly sent N times, the transmission mode of the first message is the first transmission mode, and the valid symbol type of the first message is the second symbol, the transmission time slot of the first message is N time slots starting from the second time slot, and N is a positive integer;

[0203] Wherein, for each of the N time slots, the time slot satisfies at least one of the following:

[0204] The symbol in which the first message is located in the time slot does not include the configured downlink symbol;

[0205] The symbol where the first message is located in the time slot does not contain the symbol of the synchronization channel block SSB;

[0206] The symbol where the first message is located in the time slot does not include the configured first symbol;

[0207] Among them, the downlink symbol is configured by the time division duplex uplink and downlink configuration common parameter tdd-UL-DL-ConfigurationCommon, and the SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

[0208] That is to say, starting from the second time slot, if the symbols provided for the repetition of msg A in a slot do not contain DL symbols configured by tdd-UL-DL-ConfigurationCommon (SBFD subband is not configured), or do not contain SSB symbols indexed by ssb-PositionsInBurst, or do not contain symbols configured with SBFD subband, then the slot is counted as one slot in N slots. That is to say, starting from the second time slot, if the symbols provided for the repetition of msg A in a slot are: symbols not configured with SBFD subband, and are F symbols or UL symbols, and are not SSB symbols indexed by ssb-PositionsInBurst, then the slot is counted as one slot in N slots.

[0209] In some embodiments, when the first message is a first message that is repeatedly sent N times, the transmission mode of the first message is the first transmission mode, and the valid symbol type of the first message is the first symbol, the transmission time slot of the first message is N time slots starting from the second time slot, and N is a positive integer;

[0210] Among them, for each of the N time slots, the symbol where the first message in the time slot is located is the configured first symbol, and the symbol where the first message in the time slot is located does not contain the SSB symbol, and the SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

[0211] In some embodiments, when the first message is a first message that is repeatedly sent N times and the transmission mode of the first message is the second transmission mode, the transmission time slot of the first message is N time slots starting from the second time slot, where N is a positive integer;

[0212] Among them, for each of the N time slots, the symbol where the first message in the time slot is located is the first symbol or the flexible symbol or the uplink symbol, and the symbol where the first message in the time slot is located does not include the SSB symbol; SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

[0213] In some embodiments, the second time slot is determined by:

[0214] B=slot n+k 2 +Δ+2 μ ·K cell,offset

[0215] Wherein, B is the second time slot, slot n is the time slot where the end of the received physical uplink shared channel PDSCH carrying the random access response message RAR message is located, and k 2 is defined based on the subcarrier spacing used by the first message, is determined based on the time domain resource allocation table of the first message, Δ is defined based on the subcarrier spacing used by the first message, K cell,offset is a cell-specific offset, defined based on the parameter

[0216] cellSpecificKoffset,u is the subcarrier spacing of the first message.

[0217] In some embodiments, the message is a physical uplink control channel of the fourth message (referred to as msg4) in the four-step random access process, and the transmission configuration parameter includes at least one of the following:

[0218] Valid symbol type of the physical uplink control channel PUCCH of msg4 (PUCCH of msg4 or PUCCH of msgB is transmitted in symbols corresponding to valid symbol types and is not transmitted in symbols corresponding to non-valid symbol types);

[0219] Beam direction of the physical uplink control channel PUCCH of msg4.

[0220] In some embodiments, the transmission mode is the first transmission mode, and the valid symbol type of the physical uplink control channel of msg4 is determined based on one of the following methods:

[0221] Among them, the PUCCH of msg4 is transmitted in the symbol corresponding to the valid symbol type, and is not transmitted in the symbol corresponding to the non-valid symbol type.

[0222] Option 3-1: The symbol type of the symbol where the first transmission of the PUCCH of msg4 is located is the valid symbol type of the PUCCH of msg4.

[0223] For example, for a PUCCH of msg4 with N (N is greater than 0) repetitions, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the first repetition of the PUCCH of msg4 is located is determined as the valid symbol type of the PUCCH of msg4. Among them, the slot position where the first repetition of the PUCCH of msg4 is located and the symbol position in the slot (including the number of symbols and symbol positions) are indicated by the base station, for example, based on the DCI indication of the scheduling msg4. All repetitions of the PUCCH of msg4 can only be transmitted in the symbol corresponding to the valid symbol type of the PUCCH of msg4 (not described one by one later).

[0224] For a PUCCH of msg4 without repetition, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the PUCCH of msg4 is located is determined as a valid symbol type of the PUCCH of msg4. The slot position where the first repetition of the PUCCH of msg4 is located and the symbol position (including the number of symbols and symbol position) in the slot are indicated by the base station, for example, based on the PUCCH indication of msg4.

[0225] The PUCCH of msg4 is transmitted in the symbol corresponding to the valid symbol type, and the transmission parameters associated with the PUCCH of msg4 (including but not limited to power control parameters, beam parameters, frequency hopping parameters, PUCCH resources) are used with the valid symbol type, which will not be described one by one later.

[0226] Option 3-2: The valid symbol type of the PUCCH of msg4 is the same as the symbol type of the symbol where msg1 is located and / or the symbol type of the symbol where msg3 is located.

[0227] For example, the base station and the UE agree that, in the first transmission mode, the effective symbol type of the PUCCH (including the PUCCH with N (N is greater than 0) repetitions) of msg4 is the same as the symbol type of the symbol used by the UE to transmit msg1 or msg3.

[0228] Option 3-3: Valid symbol type of PUCCH of msg4 configured through RRC signaling.

[0229] For example, the base station and the UE agree that for UEs (including idle / inactivated UEs and connected UEs), the valid symbol type of PUCCH (including with N repetitions) of msg4 in the first transmission mode is configured in the BWP-UplinkCommon message or the pucch-ResourceCommon message or SIB1.

[0230] The base station and the UE agree that the transmission mode of the PUCCH of msg4 (ie, the first transmission mode or the second transmission mode) can be determined to follow the transmission mode of msg1 or msg3.

[0231] In some embodiments, the transmission mode is the first transmission mode, and the beam direction of the physical uplink control channel of msg4 is the same as the beam direction of msg1 or the beam direction of msg3 in the previous time slot. The valid symbol type of the physical uplink control channel of msg4 is the same as the valid symbol type of msg1 or msg3.

[0232] In some embodiments, the transmission mode is the second transmission mode, and the beam direction of the physical uplink control channel of msg4 satisfies at least one of the following:

[0233] The beam direction of the physical uplink control channel of msg4 transmitted in the first symbol is the same as the beam direction of msg1 in the first symbol in the previous time slot;

[0234] The beam direction of the physical uplink control channel of msg4 transmitted in the first symbol is the same as the beam direction of msg3 in the first symbol in the previous time slot;

[0235] The beam direction of the physical uplink control channel of msg4 transmitted in the second symbol is the same as the beam direction of msg1 in the second symbol in the previous time slot;

[0236] The beam direction of the physical uplink control channel of msg4 transmitted in the second symbol is the same as the beam direction of msg3 in the second symbol in the previous time slot.

[0237] In some examples, in response to the PUCCH of msg4 being determined (including by default) to use the first transmission mode, the beam direction used for the PUCCH transmission of msg4 (including all repetitions) is the same as the beam direction used to transmit msg3 or msg1 in the previous slot. The valid symbol type of msg3 or msg1 is the same as the valid symbol type determined for the PUCCH of msg4.

[0238] In some examples, in response to the base station notifying the UE, or the base station and the UE acquiescing that the beam used for uplink transmission of a UE in the SBFD symbol and the non-SBFD symbol is the same, the beam direction used for PUCCH transmission of msg4 (including all repetitions) is the same as the beam direction used for transmitting msg3 or msg1 in the previous slot. The valid symbol type of msg3 or msg1 is the same as or different from the valid symbol type determined for the PUCCH of msg4.

[0239] In some examples, in response to the PUCCH of msg4 (including all repetitions) being determined (including by default) to use the second transmission mode, the beam direction used for the PUCCH transmission of msg4 in the SBFD symbol is the same as the beam direction of msg3 or msg1 transmitted in the SBFD symbol in the previous slot, and the beam direction used for the PUCCH transmission of msg4 in the non-SBFD symbol is the same as the beam direction of msg3 or msg1 transmitted in the non-SBFD symbol in the previous slot.

[0240] In some examples, in response to the PUCCH (including all repetitions) of msg4 being determined (including by default) to use the second transmission mode, and in response to the base station notifying the UE, or the base station and the UE acquiescing that the beam used for uplink transmission of a UE in the SBFD symbol and the non-SBFD symbol is the same, the beam direction used for the PUCCH transmission of msg4 (including all repetitions) is the same as the beam direction used to transmit msg3 or msg1 in the previous slot. The valid symbol type of msg3 or msg1 is the same as or different from the valid symbol type determined for the PUCCH of msg4.

[0241] In some embodiments, the message is a physical uplink control channel of a second message (msgB) in a two-step random access process, and the transmission configuration parameters include:

[0242] Valid symbol type of PUCCH of msgB;

[0243] Beam direction of PUCCH of msgB.

[0244] In some embodiments, the transmission mode is the first transmission mode, and the valid symbol type of the PUCCH of msgB is determined based on one of the following methods:

[0245] Option 4-1: The symbol type of the symbol where the PUCCH of msgB is first transmitted is a valid symbol type of the PUCCH of msgB.

[0246] For example, for a PUCCH with N (N greater than 0) repetitions or msgB, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the first repetition of the PUCCH of msgB is located is determined as the valid symbol type of the PUCCH of msgB. Among them, the slot position where the first repetition of the PUCCH of msgB is located and the symbol position in the slot (including the number of symbols and symbol positions) are indicated by the base station, for example, based on the DCI indication of the scheduling msgB. All repetitions of the PUCCH of msgB can only be transmitted in the symbol corresponding to the valid symbol type of the PUCCH of msgB (not described one by one later).

[0247] For a PUCCH of msgB without repetition, the symbol type (i.e., SBFD symbol or non-SBFD symbol) of the symbol where the PUCCH of msgB is located is determined as a valid symbol type of the PUCCH of msgB. The slot position where the first repetition of the PUCCH of msgB is located and the symbol position (including the number of symbols and symbol position) in the slot are indicated by the base station, for example, based on the PUCCH indication of msgB.

[0248] The PUCCH of msgB is transmitted in the symbol corresponding to the valid symbol type, and the transmission parameters associated with the PUCCH of msgB (including but not limited to power control parameters, beam parameters, frequency hopping parameters, PUCCH resources) are used for the valid symbol type, which will not be described one by one later.

[0249] Option 4-2: The valid symbol type of the PUCCH of msgB is the same as the symbol type of the symbol where msgA is located.

[0250] For example, the base station and the UE agree that, in the first transmission mode, the effective symbol type of the PUCCH of msgB (including the PUCCH with N (N is greater than 0) repetitions) is the same as the symbol type of the symbol used by the UE to transmit msgA.

[0251] Option 4-3: Valid symbol type of PUCCH of msgB configured through RRC signaling.

[0252] For example, the base station and the UE agree that for UEs (including idle / inactivated UEs and connected UEs), the valid symbol type of PUCCH (including with N repetitions) in the first transmission mode configured in the BWP-UplinkCommon message or pucch-ResourceCommon message or SIB1 or msgB.

[0253] The base station and the UE agree that the transmission mode of the PUCCH of msgB (ie, the first transmission mode or the second transmission mode) can be determined to follow the transmission mode of msgA.

[0254] In some embodiments, the transmission mode is the first transmission mode, and the beam direction of the physical uplink control channel of msgB is the same as the beam direction of the first message (msgA) in the two-step random access process in the previous time slot.

[0255] The valid symbol type of the physical uplink control channel is the same as the valid symbol type of msgA.

[0256] In some embodiments, the transmission mode is the second transmission mode, and the beam direction of the physical uplink control channel of msgB satisfies at least one of the following:

[0257] The beam direction of the physical uplink control channel of msgB transmitted in the first symbol is the same as the beam direction of msgA in the first symbol in the previous time slot;

[0258] The beam direction of the physical uplink control channel of msgB transmitted in the second symbol is the same as the beam direction of msgA in the second symbol in the previous time slot.

[0259] In some examples, in response to the PUCCH of msgB being determined (including by default) to use the first transmission mode, the beam direction used for the PUCCH transmission of msgB (including all repetitions) is the same as the beam direction used to transmit msgA in the previous slot, wherein the valid symbol type of msgA is the same as the valid symbol type determined for the PUCCH of msgB.

[0260] In some examples, in response to the base station notifying the UE, or the base station and the UE acquiescing that the beam used for uplink transmission of a UE in the SBFD symbol and the non-SBFD symbol is the same, the beam direction used for PUCCH transmission of msgB (including all repetitions) is the same as the beam direction used for transmitting msgA in the previous slot. The valid symbol type of msgA is the same as or different from the valid symbol type determined for PUCCH of msgB.

[0261] In some examples, in response to the PUCCH of msgB (including all repetitions) being determined (including by default) to use the second transmission mode, the beam direction used for the PUCCH transmission of msgB in the SBFD symbol is the same as the beam direction of msgA transmitted in the SBFD symbol in the previous slot, and the beam direction used for the PUCCH transmission of msgB in the non-SBFD symbol is the same as the beam direction of msg3 or msg1 transmitted in the non-SBFD symbol in the previous slot.

[0262] In some examples, in response to the PUCCH (including all repetitions) of msgB being determined (including by default) to use configuration 2, and in response to the base station notifying the UE, or the base station and the UE acquiescing that the beam used for uplink transmission of a UE in SBFD symbols and non-SBFD symbols is the same, the beam direction used for PUCCH transmission of msgB (including all repetitions) is the same as the beam direction for transmitting msgA in the previous slot. The valid symbol type of msgA is the same as or different from the valid symbol type determined for the PUCCH of msgB.

[0263] S102: Send a message in a random access process based on a transmission configuration parameter.

[0264] Based on this, by adapting to different message transmission requirements during the random access process, the transmission mode corresponding to the message can flexibly select the first transmission mode or the second transmission mode. Among them, the first transmission mode requires the use of the same type of symbols in different time slots, ensuring the consistency and reliability of the message, which is particularly suitable for business scenarios that require continuous and stable communication. The second transmission mode allows the use of different types of symbols in different time slots, providing higher network adaptability and dynamic adjustment capabilities, and can meet the needs of diversified services. By flexibly adjusting the corresponding transmission configuration parameters based on the message transmission mode, users are provided with more efficient, stable and flexible network access services, which significantly improves the utilization efficiency of network resources, thereby achieving overall optimization of network transmission.

[0265] The present disclosure provides a method for determining a transmission configuration, which is applied to a second node. Figure 6 As shown, the method comprises the following steps:

[0266] S201. Receive a message in a random access process.

[0267] The transmission configuration parameters of the message during the random access process are determined based on the transmission mode of the message during the random access process. The transmission mode includes a first transmission mode and a second transmission mode. The first transmission mode requires that the same type of symbols be used to carry messages in different time slots, and the second transmission mode requires that different types of symbols be used to carry messages in different time slots.

[0268] For other related descriptions about S201, please refer to the introduction in the above embodiments or examples, which will not be repeated here.

[0269] It can be understood that one mgsA includes one PRACH and one PUSCH, which form a complete msgA. However, after the SBFD symbol is configured, there are two types of symbols used for UL transmission in the system, one is the traditional UL symbol containing UL BWP (i.e., a type of non-SBFD symbol), and the other is the SBFD symbol containing UL subband. These two types of symbols have different transmission properties. Therefore, the design of the new msgA is given below.

[0270] The embodiment of the present disclosure provides a method for determining a transmission configuration, which is applied to a first node. The method comprises the following steps:

[0271] S301. A first node receives configuration information of a first message in a two-step random access process, and the first node determines the first message based on the configuration information, wherein the first message is configured to include physical random access channel resources and physical uplink shared channel resources.

[0272] The physical random access channel PRACH resources and the physical uplink shared channel resources PUSCH are configured to meet one of the following requirements:

[0273] The first symbol includes a sub-band full-duplex symbol and an in-band full-duplex symbol, and the second symbol includes a non-sub-band full-duplex symbol and a non-in-band full-duplex symbol.

[0274] Alt4-1, the PRACH resource is configured in the first symbol, and the PUSCH resource is configured in the second symbol. Further, the PRACH resource in an SBFD symbol can be configured with multiple corresponding PUSCH resources. For example, the PRACH resource is 1, and the PUSCH resource can be multiple, such as 2, one PUSCH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PUSCH resources are configured in non-SBFD symbols. Or, further, the PRACH resource is 2, and the PUSCH resource can be 1. For example, 2, one PRACH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PRACH resources are configured in SBFD symbols.

[0275] Alt4-2, the PRACH resource is configured in the second symbol, and the PUSCH resource is configured in the first symbol. Further, a PRACH resource in a non-SBFD symbol can be configured with multiple corresponding PUSCH resources. For example, the PRACH resource is 1, and the PUSCH resource can be multiple, such as 2, one PUSCH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PUSCH resources are configured in non-SBFD symbols. Or, further, the PRACH resource is 2, and the PUSCH resource can be 1. For example, 2, one PRACH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PRACH resources are configured in SBFD symbols.

[0276] Alt4-3, PRACH resources are configured in the second symbol, and PUSCH resources are configured in the second symbol.

[0277] Alt4-4, PRACH resources are configured in the first symbol, and PUSCH resources are configured in the first symbol.

[0278] In some embodiments, a first message in a two-step random access process is sent to a second node; the physical random access channel resources of the first message and the physical uplink shared channel resources of the first message are configured in different types of symbols to determine that the first node has the ability to transmit based on a second transmission mode, and the second transmission mode requires the use of different types of symbols in different time slots to carry messages in the random access process.

[0279] In some embodiments, in response to a first message transmitted by a first node, a physical uplink control channel for transmitting a third message in a four-step random access process, a physical uplink control channel for transmitting a fourth message in a four-step random access process, and a physical uplink control channel for transmitting a second message in a two-step random access process by the first node are allowed to be transmitted based on a second transmission mode.

[0280] The embodiment of the present disclosure provides a method for determining a transmission configuration, which is applied to a second node. The method comprises the following steps:

[0281] S401. Configure a first message in a two-step random access process, where the first message is configured to include physical random access channel resources and physical uplink shared channel resources.

[0282] The physical random access channel PRACH resources and the physical uplink shared channel resources PUSCH are configured to meet one of the following requirements:

[0283] The first symbol includes a sub-band full-duplex symbol and an in-band full-duplex symbol, and the second symbol includes a non-sub-band full-duplex symbol and a non-in-band full-duplex symbol.

[0284] Alt4-1, the PRACH resource is configured in the first symbol, and the PUSCH resource is configured in the second symbol. Further, the PRACH resource in an SBFD symbol can be configured with multiple corresponding PUSCH resources. For example, the PRACH resource is 1, and the PUSCH resource can be multiple, such as 2, one PUSCH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PUSCH resources are configured in non-SBFD symbols. Or, further, the PRACH resource is 2, and the PUSCH resource can be 1. For example, 2, one PRACH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PRACH resources are configured in SBFD symbols.

[0285] Alt4-2, the PRACH resource is configured in the second symbol, and the PUSCH resource is configured in the first symbol. Further, a PRACH resource in a non-SBFD symbol can be configured with multiple corresponding PUSCH resources. For example, the PRACH resource is 1, and the PUSCH resource can be multiple, such as 2, one PUSCH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PUSCH resources are configured in non-SBFD symbols. Or, further, the PRACH resource is 2, and the PUSCH resource can be 1. For example, 2, one PRACH resource is configured in a non-SBFD symbol, and the other PUSCH is configured in a SBFD symbol, or both PRACH resources are configured in SBFD symbols.

[0286] Alt4-3, PRACH resources are configured in the second symbol, and PUSCH resources are configured in the second symbol.

[0287] Alt4-4, PRACH resources are configured in the first symbol, and PUSCH resources are configured in the first symbol.

[0288] In some embodiments, a first message in a two-step random access process is received by a first node; a physical random access channel resource of the first message and a physical uplink shared channel resource of the first message are configured in different types of symbols, and it is determined that the first node has the ability to transmit based on a second transmission mode, and the second transmission mode requires the use of different types of symbols in different time slots to carry messages in the random access process.

[0289] In some embodiments, after determining that the first node has the ability to transmit based on the second transmission mode, the second node transmission determines that the second message in the four-step random access process, the fourth message in the four-step random access process, and the second message in the two-step random access process are all allowed to be transmitted based on the second transmission mode.

[0290] For example, the base station and the UE can agree to imply that the UE has or does not have the ability to use the second transmission mode (or the first transmission mode) based on Alt4-1 to Alt4-4 above. For example, if the UE transmits a msgA, and the PRACH resources and PUSCH resources of the msgA are in different symbol types, the UE is assumed to have the ability to use the second transmission mode. In this way, the base station and the UE determine that the PUCCH / msgB / PUCCH of msg2 / msg3 / msg4 / msg4 of the UE in the random access process are all allowed to be transmitted based on the second transmission mode.

[0291] For example, if the UE transmits a msgA, and the PRACH resources and PUSCH resources of the msgA are both in the SBFD symbol or in the non-SBFD symbol, it cannot be said that the UE does not have the ability to use the second transmission mode, because the UE that uses the second transmission mode can select the transmission mode of the msgA. For example, the base station and the UE that uses the second transmission mode agree that the PUCCH / msgB / PUCCH of msg2 / msg3 / msg4 / msg4 used by the UE in the random access process all use the symbol type of the symbol where the msgA is located using the first transmission mode and the valid symbol type is.

[0292] For a PUSCH resource associated with an msgA, it is configured in the physical uplink shared channel configuration MsgA-PUSCH-Config of msgA. Since the SBFD symbol is introduced and the PRACH resource and PUSCH resource of an msgA are associated with different symbol types, the relevant parameters of the PUSCH resource in the SBFD symbol should also be configured in MsgA-PUSCH-Config. That is, independent parameter configuration is provided for the PUSCH resource in the SBFD symbol in MsgA-PUSCH-Config.

[0293] The above mainly introduces the scheme of the embodiment of the present disclosure from the perspective of the method. A transmission configuration determination device is also shown below, which is used to execute the transmission configuration determination method in any of the above embodiments and possible implementations thereof. It can be understood that in order to implement the transmission configuration determination method, the transmission configuration determination device includes hardware structures and / or software modules corresponding to the execution of various functions; those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiment of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0294] The embodiments of the present disclosure may divide the transmission configuration determination device into functional modules according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0295] Figure 7 The transmission configuration determination device 50 provided in the embodiment of the present disclosure is applied to a first node. The transmission configuration determination device 50 includes: a processing module 51 and a communication module 52.

[0296] The processing module 51 is used to determine the transmission configuration parameters of the message in the random access process based on the transmission mode of the message in the random access process; wherein the transmission mode includes a first transmission mode and a second transmission mode, the first transmission mode requires that the same type of symbols be used in different time slots to carry the message, and the second transmission mode requires that different types of symbols be used in different time slots to carry the message;

[0297] The communication module 52 is used to send a message in the random access process based on the transmission configuration parameters.

[0298] In some embodiments, the types of symbols include first symbols and second symbols, the first symbols include sub-band full-duplex symbols and intra-band full-duplex symbols, and the second symbols include non-sub-band full-duplex symbols and non-intra-band full-duplex symbols.

[0299] In some embodiments, the message is the third message in the four-step random access process, and the transmission configuration parameter includes at least one of the following:

[0300] The valid symbol type of the third message;

[0301] A valid symbol type for retransmitting the third message;

[0302] The power corresponding to the third message;

[0303] The power corresponding to the retransmission of the third message;

[0304] The transmission time slot of the third message.

[0305] In some embodiments, the communication module 52 is used to send a first message in the two-step random access process, and the resource configuration of the first message satisfies one of the following:

[0306] The PRACH resources of the first message are configured in SBFD symbols, and the PUSCH resources of the first message are configured in non-SBFD symbols;

[0307] The PRACH resources of the first message are configured in non-SBFD symbols, and the PUSCH resources of the first message are configured in non-SBFD symbols;

[0308] The PRACH resources of the first message are configured in non-SBFD symbols, and the PUSCH resources of the first message are configured in non-SBFD symbols.

[0309] In some embodiments, the communication module 52 is configured to send the first message based on a transmission configuration parameter of the first message, where the transmission configuration parameter of the first message satisfies one of the following:

[0310] The physical random access channel resources of the first message are configured in the first symbol, and the physical uplink shared channel resources of the first message are configured in the second symbol;

[0311] The physical random access channel resources of the first message are configured in the second symbol, and the physical uplink shared channel resources of the first message are configured in the first symbol;

[0312] The physical random access channel resources of the first message are configured in the second symbol, and the physical uplink shared channel resources of the first message are configured in the second symbol;

[0313] The physical random access channel resources of the first message are configured in the first symbol, and the physical uplink shared channel resources of the first message are configured in the first symbol.

[0314] For a more detailed description of the processing module 51 and the communication module 52, as well as a more detailed description of each technical feature therein and a description of the beneficial effects, etc., please refer to the corresponding method embodiment part above, which will not be repeated here.

[0315] Figure 8 Another transmission configuration determination device provided by the embodiment of the present disclosure is applied to a second node. The transmission configuration determination device 60 includes a communication module 61 and a processing module 62.

[0316] The communication module 61 is used to receive messages during a random access process, wherein the transmission configuration parameters of the messages during the random access process are determined based on the transmission mode of the messages during the random access process; wherein the transmission mode includes a first transmission mode and a second transmission mode, the first transmission mode requires the use of the same type of symbols to carry messages in different time slots, and the second transmission mode requires the use of different types of symbols to carry messages in different time slots.

[0317] In some embodiments, the message in the random access process is a first message in the two-step random access process, and the transmission configuration parameters of the first message satisfy one of the following:

[0318] The physical random access channel resources of the first message are configured in the first symbol, and the physical uplink shared channel resources of the first message are configured in the second symbol;

[0319] The physical random access channel resources of the first message are configured in the second symbol, and the physical uplink shared channel resources of the first message are configured in the first symbol;

[0320] The physical random access channel resources of the first message are configured in the second symbol, and the physical uplink shared channel resources of the first message are configured in the second symbol;

[0321] The physical random access channel resources of the first message are configured in the first symbol, and the physical uplink shared channel resources of the first message are configured in the first symbol.

[0322] In some embodiments, the communication module 61 is used to receive a first message in a two-step random access process sent by a first node; the processing module 62 is used to determine whether the first node has the ability to use the second transmission mode based on the transmission configuration parameters of the first message.

[0323] In some embodiments, the processing module 62 is specifically configured to determine that the first node has the ability to use the second transmission mode when the physical random access channel resources of the first message and the physical uplink shared channel resources of the first message are configured in different types of symbols.

[0324] For a more detailed description of the communication module 61 and the processing module 62, as well as a more detailed description of each technical feature therein and a description of the beneficial effects, etc., please refer to the corresponding method embodiment part above, which will not be repeated here.

[0325] Fig. 9 The transmission configuration determination device 70 provided in the embodiment of the present disclosure is applied to a first node. The transmission configuration determination device 70 includes: a communication module 71 and a determination module 72.

[0326] Wherein, the communication module 71 is used to receive configuration information of the first message in the two-step random access process;

[0327] The determination module 72 determines a first message based on the configuration information, wherein the first message is configured to include a physical random access channel resource and a physical uplink shared channel resource, and the physical random access channel resource and the physical uplink shared channel resource are configured to satisfy one of the following:

[0328] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0329] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0330] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0331] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0332] The first symbol includes a sub-band full-duplex symbol and an in-band full-duplex symbol, and the second symbol includes a non-sub-band full-duplex symbol and a non-in-band full-duplex symbol.

[0333] In some embodiments, a communication module 71 is used to send a first message in a two-step random access process to a second node; a determination module 72 is used to determine that the physical random access channel resources of the first message and the physical uplink shared channel resources of the first message are configured in different types of symbols, and to determine that the first node has the ability to transmit based on a second transmission mode, and the second transmission mode requires the use of different types of symbols in different time slots to carry messages in the random access process.

[0334] In some embodiments, the determination module 72 is also used to respond to the first message transmitted by the first node, and the physical uplink control channel of the third message in the four-step random access process transmitted by the first node, the physical uplink control channel of the fourth message in the four-step random access process, and the physical uplink control channel of the second message in the two-step random access process are allowed to be transmitted based on the second transmission mode.

[0335] For a more detailed description of the above-mentioned communication module 71 and determination module 72, as well as a more detailed description of each technical feature therein, and a description of the beneficial effects, etc., please refer to the above-mentioned corresponding method embodiment part, which will not be repeated here.

[0336] Fig.10 The transmission configuration determination device 80 provided by the embodiment of the present disclosure is applied to a second node. The transmission configuration determination device 80 includes: a configuration module 81, a communication module 82 and a determination module 83.

[0337] The configuration module 81 is used to configure a first message in the two-step random access process, where the first message is configured to include physical random access channel resources and physical uplink shared channel resources, and the physical random access channel resources and the physical uplink shared channel resources are configured to satisfy one of the following:

[0338] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0339] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0340] The physical random access channel resources are configured in the second symbol, and the physical uplink shared channel resources are configured in the second symbol;

[0341] The physical random access channel resources are configured in the first symbol, and the physical uplink shared channel resources are configured in the first symbol;

[0342] The first symbol includes a sub-band full-duplex symbol and an in-band full-duplex symbol, and the second symbol includes a non-sub-band full-duplex symbol and a non-in-band full-duplex symbol.

[0343] In some embodiments, a communication module 82 is used to receive a first message in a two-step random access process sent by a first node; a determination module 83 is used to determine that the physical random access channel resources of the first message and the physical uplink shared channel resources of the first message are configured in different types of symbols, and to determine that the first node has the ability to transmit based on a second transmission mode, and the second transmission mode requires the use of different types of symbols in different time slots to carry messages in the random access process.

[0344] In some embodiments, the determination module 83 is also used to determine that the first node has the ability to transmit based on the second transmission mode, and the second node transmits the second message in the four-step random access process, the fourth message in the four-step random access process, and the second message in the two-step random access process are all allowed to be transmitted based on the second transmission mode.

[0345] For a more detailed description of the configuration module 81, the communication module 82 and the determination module 83, as well as a more detailed description of the technical features therein and a description of the beneficial effects, etc., please refer to the corresponding method embodiment section above and will not be repeated here.

[0346] It should be noted that Figure 7 , Figure 8 , Fig. 9 or Fig.10 The modules in the communication module may also be referred to as units. For example, the communication module may be referred to as a communication unit. Figure 7 , Figure 8 , Fig. 9 or Fig.10 In the illustrated embodiment, the names of the modules may not be the names shown in the figure. For example, the communication module may also be called a sending module or a receiving module.

[0347] Figure 7 , Figure 8 , Fig. 9 or Fig.10If the various units or modules in the embodiment are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present disclosure. The storage medium for storing computer software products includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0348] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiment of the present disclosure also provides a possible structure of a communication device, which is used to execute the transmission configuration determination method provided by the embodiment of the present disclosure. Fig.11 As shown, the communication device 900 includes: a communication interface 903, a processor 902 and a bus 904. Optionally, the communication device may further include a memory 901.

[0349] The processor 902 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 902 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 902 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0350] The communication interface 903 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0351] The memory 901 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0352] As a possible implementation, the memory 901 may exist independently of the processor 902, and the memory 901 may be connected to the processor 902 via a bus 904 for storing instructions or program codes. When the processor 902 calls and executes the instructions or program codes stored in the memory 901, the transmission configuration determination method provided in the embodiment of the present disclosure can be implemented.

[0353] In another possible implementation, the memory 901 may also be integrated with the processor 902 .

[0354] The bus 904 may be an extended industry standard architecture (EISA) bus, etc. The bus 904 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.11 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0355] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the transmission configuration determination method as described in any of the above embodiments.

[0356] In an exemplary implementation, the computer may be the above-mentioned transmission configuration determination device, and the present disclosure does not limit the specific form of the computer.

[0357] In some examples, the computer-readable storage media described above may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0358] An embodiment of the present disclosure provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the transmission configuration determination method described in any one of the above embodiments.

[0359] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for determining a transmission configuration, characterized in that: Applied to the first node, the method comprises: Determine, based on a transmission mode of a message in a random access process, a transmission configuration parameter of the message in the random access process; wherein the transmission mode includes a first transmission mode and a second transmission mode, the first transmission mode requires using the same type of symbols in different time slots to carry the message, and the second transmission mode requires using different types of symbols in different time slots to carry the message; Based on the transmission configuration parameter, a message in the random access procedure is sent.

2. The method according to claim 1, characterized in that: The symbol types include first symbols and second symbols, the first symbols include sub-band full-duplex symbols and in-band full-duplex symbols, and the second symbols include non-sub-band full-duplex symbols and non-in-band full-duplex symbols.

3. The method according to claim 2, characterized in that The message is the third message in the four-step random access process, and the transmission configuration parameter includes at least one of the following: A valid symbol type of the third message; a valid symbol type for retransmitting the third message; The power corresponding to the third message; retransmitting a power corresponding to the third message; The transmission time slot of the third message.

4. The method according to claim 3, characterized in that The transmission mode is the first transmission mode, and the valid symbol type of the third message is determined based on one of the following methods: The symbol type of the symbol in which the third message is transmitted for the first time is a valid symbol type of the third message, wherein the first transmission includes a first repeated transmission of the third message; Indicating a valid symbol type of the third message based on first indication information, where the first indication information is carried in a random access response uplink grant RAR UL grant; The valid symbol type of the third message is the same as the symbol type of the symbol used by the first message in the four-step random access process.

5. The method according to claim 4, characterized in that The first indication information is carried in a random access response uplink grant RAR UL grant, and includes at least one of the following: The first indication information is determined based on a channel state information request CSI-request field in the random access response uplink grant; The first indication information is determined based on a physical uplink shared channel time resource allocation PUSCH time resource allocation field in the random access response uplink grant; The first indication information is determined based on a physical uplink shared channel frequency domain resource allocation PUSCH frequency resource allocation field in the random access response uplink grant; The first indication information is determined based on a modulation and coding scheme MCS field in an uplink grant of the random access response; The first indication information is determined based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the random access response uplink grant.

6. The method according to claim 3, characterized in that The transmission mode is the first transmission mode, and the valid symbol type for retransmitting the third message is determined based on one of the following methods: The valid symbol type for retransmitting the third message is the same as the symbol type used for the first message in the four-step random access process; The valid symbol type of the third message is indicated for retransmission based on second indication information, where the second indication information is carried in downlink control information scrambled by a temporary cell radio network temporary identifier TC_RNTI.

7. The method according to claim 6, characterized in that The second indication information is carried in the downlink control information scrambled by the TC_RNTI, and includes at least one of the following: The second indication information is determined based on a new data indication New data indicator field in the downlink control information; The second indication information is determined based on a hybrid automatic repeat request process number HARQprocess number field in the downlink control information; The second indication information is determined based on a new field in the downlink control information, wherein bits corresponding to the new field use part of bits of a padding field; The second indication information is determined based on a physical uplink shared channel time resource allocation PUSCH time resource allocation field in the downlink control information; The second indication information is determined based on a physical uplink shared channel frequency domain resource allocation PUSCH frequency resource allocation field in the downlink control information; The second indication information is determined based on a modulation and coding scheme MCS field in the downlink control information; The second indication information is determined based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the downlink control information.

8. The method according to claim 3, characterized in that The transmission mode is the first transmission mode, the third message is transmitted only in the symbol corresponding to the determined valid symbol type, and the power of the third message is determined based on the third indication information; The third indication information satisfies at least one of the following: In response to the valid symbol type of the third message being the first symbol, the third indication information is parsed based on a power control parameter / table configured for the third message and associated with the first symbol; or, In response to the valid symbol type of the third message being the second symbol, the third indication information is parsed based on a power control parameter / table configured for the third message and associated with the second symbol; In response to the third message being initially transmitted, the third indication information is determined to be based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in a RAR UL grant; or, In response to the third message being retransmitted, the third indication information is determined based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the downlink control information.

9. The method according to claim 3, characterized in that: The transmission mode is the second transmission mode, the third message is transmitted in the first symbol and the second symbol at the same time, and the power of the third message is determined based on third indication information; When the third message is transmitted in a target type symbol, the third indication information is parsed based on a power control parameter / table configured for the third message and associated with the target type symbol; or, The third message is transmitted in a non-target type symbol, and the power of the third message is determined based on an offset and the third indication information parsed based on a power control parameter / table associated with the target type symbol; The target type symbol is the first symbol, and the non-target type symbol is the second symbol; or the non-target type symbol is the second symbol, and the target type symbol is the first symbol; In response to the third message being initially transmitted, the third indication information is determined to be based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in a RAR UL grant; or, In response to the third message being retransmitted, the third indication information is determined based on a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the downlink control information.

10. The method according to claim 9, characterized in that The offset is determined based on at least one of the following: radio resource control signaling RRC, the second message in the four-step random access process, and the channel state information request CSI-request field in the random access response uplink grant.

11. The method according to claim 1, characterized in that: The message is the third message in the four-step random access process, the transmission mode of the third message is determined based on fourth indication information, the fourth indication information is used to indicate that the transmission mode of the third message is the first transmission mode or the second transmission mode, and the fourth indication information is determined based on RAR UL grant or downlink control information encrypted by TC_RNTI.

12. The method according to claim 11, characterized in that The fourth indication information is determined based on the RAR UL grant or the downlink control information scrambled by the TC_RNTI, including one of the following: The fourth indication information is determined based on a channel state information request CSI-request field in the RAR UL grant; The fourth indication information is determined based on a new data indication New data indicator field in the downlink control information; The fourth indication information is determined based on a hybrid automatic repeat request process number HARQprocess number field in the downlink control information; The fourth indication information is determined based on a new field in the downlink control information, wherein bits corresponding to the new field use part of bits of a padding field; The fourth indication information is determined based on the physical uplink shared channel time resource allocation PUSCH time resource allocation field in the RAR UL grant or the downlink control information; The fourth indication information is determined based on the physical uplink shared channel frequency domain resource allocation PUSCH frequency resource allocation field in the RAR UL grant or the downlink control information; The fourth indication information is determined based on the modulation and coding scheme MCS field in the RAR UL grant or the downlink control information; The fourth indication information is determined based on the RAR UL grant or a transmission power control command TPC command for PUSCH domain of a physical uplink shared channel in the downlink control information.

13. The method according to claim 7 or 12, characterized in that: The partial bits include the partial bits being 1 bit and being located at the second lowest bit among all bits of the downlink control information.

14. The method according to claim 3, characterized in that When the third message is a third message that is repeatedly sent N times, the transmission mode of the third message is the first transmission mode, and the valid symbol type of the third message is the second symbol, the transmission time slot of the third message is N time slots starting from the first time slot, where N is a positive integer; Wherein, for each of the N time slots, the time slot satisfies at least one of the following: The symbol in the time slot where the third message is located does not include a configured downlink symbol; The symbol where the third message is located in the time slot does not include the symbol of the synchronization channel block SSB; The symbol where the third message is located in the time slot does not include the configured first symbol; The downlink symbol is configured by the time division duplex uplink and downlink configuration common parameter tdd-UL-DL-ConfigurationCommon, and the SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

15. The method according to claim 3, characterized in that When the third message is a third message that is repeatedly sent N times, the transmission mode of the third message is the first transmission mode, and the valid symbol type of the third message is the first symbol, the transmission time slot of the third message is N time slots starting from the first time slot, where N is a positive integer; Wherein, for each time slot of the N time slots, the symbol in which the third message is located in the time slot is a configured first symbol, and the symbol in which the third message is located in the time slot does not include a SSB symbol; The SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

16. The method according to claim 3, characterized in that When the third message is a third message that is repeatedly sent N times and the transmission mode of the third message is the second transmission mode, a transmission time slot of the third message is N time slots starting from the first time slot, where N is a positive integer; Among them, for each of the N time slots, the symbol where the third message in the time slot is located is the first symbol or the flexible symbol or the uplink symbol, and the symbol where the third message in the time slot is located does not include an SSB symbol; the SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

17. The method according to any one of claims 14, 15 or 16, characterized in that The first time slot is determined by: A=slot n+k2+Δ+2 μ ·K cell,offset Wherein, A is the first time slot, slot n is the time slot where the end of the received physical uplink shared channel carrying the random access response message RAR message is located, k2 is defined based on the subcarrier spacing used by the third message, is determined based on the time domain resource allocation table of the third message, Δ is defined based on the subcarrier spacing used by the third message, and K cell,offset is the cell-specific offset, defined based on the parameter cellSpecificKoffset, and u is the subcarrier spacing of the third message.

18. The method according to claim 2, characterized in that The message is a first message in a two-step random access process, and the transmission configuration parameter includes a transmission time slot of the first message.

19. The method according to claim 18, characterized in that When the first message is a first message that is repeatedly sent N times, the transmission mode of the first message is the first transmission mode, and the valid symbol type of the first message is the second symbol, the transmission time slot of the first message is N time slots starting from the second time slot, where N is a positive integer; Wherein, for each of the N time slots, the time slot satisfies at least one of the following: The symbol in which the first message is located in the time slot does not include a configured downlink symbol; The symbol in which the first message is located in the time slot does not include a symbol of SSB; The symbol where the first message is located in the time slot does not include the configured first symbol; The downlink symbol is configured by the time division duplex uplink and downlink configuration common parameter tdd-UL-DL-ConfigurationCommon, and the SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

20. The method according to claim 18, characterized in that When the first message is a first message that is repeatedly sent N times, the transmission mode of the first message is the first transmission mode, and the valid symbol type of the first message is the first symbol, the transmission time slot of the first message is N time slots starting from the second time slot, where N is a positive integer; Wherein, for each time slot of the N time slots, the symbol where the first message is located in the time slot is a configured first symbol, and the symbol where the first message is located in the time slot does not include an SSB symbol; The SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

21. The method according to claim 18, characterized in that When the first message is a first message that is repeatedly sent N times and the transmission mode of the first message is the second transmission mode, the transmission time slot of the first message is N time slots starting from the second time slot, where N is a positive integer; Among them, for each of the N time slots, the symbol where the first message is located in the time slot is the first symbol or the flexible symbol or the uplink symbol, and the symbol where the first message is located in the time slot does not include an SSB symbol; the SSB is configured by the synchronization channel block position indication parameter ssb-PositionsInBurst.

22. The method according to any one of claims 19, 20 or 21, characterized in that The second time slot is determined by: B=slot n+k2+Δ+2 μ ·K cell,offset Wherein, B is the second time slot, slot n is the time slot where the end of the received physical uplink shared channel carrying the random access response message RAR message is located, k2 is defined based on the subcarrier spacing used by the first message, is determined based on the time domain resource allocation table of the first message, Δ is defined based on the subcarrier spacing used by the first message, and K cell,offset is the cell-specific offset, defined based on the parameter cellSpecificKoffset, and u is the subcarrier spacing of the first message.

23. The method according to claim 2, characterized in that The message is a physical uplink control channel of the fourth message in the four-step random access process, and the transmission configuration parameter includes at least one of the following: A valid symbol type of a physical uplink control channel of the fourth message; The beam direction of the physical uplink control channel of the fourth message.

24. The method according to claim 23, characterized in that The transmission mode is the first transmission mode, and the valid symbol type of the physical uplink control channel of the fourth message is determined based on one of the following methods: The symbol type of the symbol where the physical uplink control channel of the fourth message is transmitted for the first time is a valid symbol type of the physical uplink control channel of the fourth message; The valid symbol type of the physical uplink control channel of the fourth message is the same as the symbol type of the symbol where the first message is located and / or the symbol type of the symbol where the third message is located in the four-step random access process.

25. The method according to claim 23, characterized in that The transmission mode is the first transmission mode, and the beam direction of the physical uplink control channel of the fourth message is the same as the beam direction of the first message in the four-step random access process in the previous time slot or the beam direction of the third message in the four-step random access process, wherein the valid symbol type of the physical uplink control channel of the fourth message is the same as the valid symbol type of the first message or the third message.

26. The method according to claim 23, characterized in that The transmission mode is the second transmission mode, and the beam direction of the physical uplink control channel of the fourth message satisfies at least one of the following: The beam direction of the physical uplink control channel of the fourth message transmitted in the first symbol is the same as the beam direction of the first message in the four-step random access process in the previous time slot in the first symbol; The beam direction of the physical uplink control channel of the fourth message transmitted in the first symbol is the same as the beam direction of the third message in the four-step random access process in the previous time slot in the first symbol; The beam direction of the physical uplink control channel of the fourth message transmitted in the second symbol is the same as the beam direction of the first message in the four-step random access process in the previous time slot in the second symbol; The beam direction of the physical uplink control channel of the fourth message transmitted in the second symbol is the same as the beam direction of the third message in the four-step random access process in the previous time slot within the second symbol.

27. The method according to claim 2, characterized in that The message is a physical uplink control channel of the second message in the two-step random access process, and the transmission configuration parameters include: A valid symbol type of a physical uplink control channel of the second message; The beam direction of the physical uplink control channel of the second message.

28. The method according to claim 27, characterized in that The transmission mode is the first transmission mode, and the valid symbol type of the physical uplink control channel of the second message is determined based on one of the following methods: The symbol type of the symbol in which the physical uplink control channel of the second message is transmitted for the first time is a valid symbol type of the physical uplink control channel of the second message; The valid symbol type of the physical uplink control channel of the second message is the same as the symbol type of the symbol of the first message in the two-step random access process.

29. The method according to claim 27, characterized in that The transmission mode is the first transmission mode, and the beam direction of the physical uplink control channel of the second message is the same as the beam direction of the first message in the two-step random access process in the previous time slot.

30. A method for determining a transmission configuration, characterized in that: Applied to the second node, the method comprises: receiving a message in a random access process, wherein a transmission configuration parameter of the message in the random access process is determined based on a transmission mode of the message in the random access process; The transmission mode includes a first transmission mode and a second transmission mode. The first transmission mode requires using the same type of symbols in different time slots to carry the message, and the second transmission mode requires using different types of symbols in different time slots to carry the message.

31. A method for determining a transmission configuration, characterized in that: Applied to the first node, the method comprises: The first node receives configuration information of a first message in a two-step random access process; The first node determines the first message based on the configuration information, wherein the first message is configured to include a physical random access channel resource and a physical uplink shared channel resource, and the physical random access channel resource and the physical uplink shared channel resource are configured to satisfy one of the following: The physical random access channel resource is configured in a first symbol, and the physical uplink shared channel resource is configured in a second symbol; The physical random access channel resource is configured in the second symbol, and the physical uplink shared channel resource is configured in the first symbol; The physical random access channel resource is configured in the second symbol, and the physical uplink shared channel resource is configured in the second symbol; The physical random access channel resource is configured in the first symbol, and the physical uplink shared channel resource is configured in the first symbol; The first symbols include sub-band full-duplex symbols and in-band full-duplex symbols, and the second symbols include non-sub-band full-duplex symbols and non-in-band full-duplex symbols.

32. The method according to claim 31, characterized in that The method further comprises: Sending a first message in a two-step random access process to a second node; The physical random access channel resources of the first message and the physical uplink shared channel resources of the first message are configured in different types of symbols, determining that the first node has the ability to transmit based on a second transmission mode, and the second transmission mode requires the use of different types of symbols in different time slots to carry messages in the random access process.

33. The method according to claim 32, characterized in that The method further comprises: In response to the first message transmitted by the first node, the physical uplink control channel for transmitting the third message in the four-step random access process, the fourth message in the four-step random access process, and the second message in the two-step random access process by the first node is allowed to be based on the second transmission mode.

34. A method for determining a transmission configuration, characterized in that: Applied to the second node, the method comprises: A first message in a two-step random access process is configured, where the first message is configured to include a physical random access channel resource and a physical uplink shared channel resource, and the physical random access channel resource and the physical uplink shared channel resource are configured to satisfy one of the following: The physical random access channel resource is configured in a first symbol, and the physical uplink shared channel resource is configured in a second symbol; The physical random access channel resource is configured in the second symbol, and the physical uplink shared channel resource is configured in the first symbol; The physical random access channel resource is configured in the second symbol, and the physical uplink shared channel resource is configured in the second symbol; The physical random access channel resource is configured in the first symbol, and the physical uplink shared channel resource is configured in the first symbol; The first symbols include sub-band full-duplex symbols and in-band full-duplex symbols, and the second symbols include non-sub-band full-duplex symbols and non-in-band full-duplex symbols.

35. The method according to claim 34, characterized in that The method further comprises: Receiving a first message in a two-step random access process sent by a first node; The physical random access channel resources of the first message and the physical uplink shared channel resources of the first message are configured in different types of symbols, determining that the first node has the ability to transmit based on a second transmission mode, and the second transmission mode requires the use of different types of symbols in different time slots to carry messages in the random access process.

36. The method according to claim 35, characterized in that The method further comprises: After determining that the first node has the ability to transmit based on the second transmission mode, the second node is allowed to transmit the second message in the four-step random access process, the fourth message in the four-step random access process and the second message in the two-step random access process based on the second transmission mode.

37. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 36 is performed.

38. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 36.

39. A computer program product, characterized in that When the computer program product is executed, the method according to any one of claims 1 to 36 is implemented.

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