Information transmission method and apparatus, communication device, communication system, and storage medium

Abstract

Provided in the embodiments of the present disclosure are an information transmission method and apparatus, a communication device, a communication system, and a storage medium. The method comprises: a terminal receiving first information, wherein the first information is used to determine a configuration of a random access occasion (RO) associated with a subband full duplex (SBFD) symbol, and the configuration of the RO comprises a time domain position of the RO and / or a frequency domain position of the RO; and on the basis of the configuration of the RO, the terminal determining whether the RO is a valid RO.

Description

Information transmission method and device, communication equipment, communication system and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on PCT patent application number PCT / CN2023 / 108265, filed on July 19, 2023.

[0003] and claims the benefit of priority from that PCT patent application, the entire contents of which are incorporated herein by reference into this disclosure. Technical Field

[0004] The present disclosure relates to the field of communication technologies, and in particular to information transmission methods and devices, communication equipment, communication systems, and storage media. Background Art

[0005] In mobile communications systems (such as 5G), a subcarrier refers to the frequency resource used to transmit data. Subcarriers can be divided into multiple independent subcarrier frequency bands, each with a fixed bandwidth. A time slot is a time slice divided into multiple short time periods, each of which is a time slot. A time slot can be divided into multiple symbols, such as for data transmission, and each symbol can be of fixed duration.

[0006] Summary of the Invention

[0007] As the functionality of terminals increases, their energy consumption increases, resulting in weak battery life.

[0008] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, and a storage medium.

[0009] According to a first aspect of an embodiment of the present disclosure, an embodiment of the present disclosure proposes an information transmission method, wherein the method includes: receiving first information, wherein the first information is used to determine the configuration of a random access opportunity (Physical Random Access Channel Occasion, RO) associated with a subband full duplex (SBFD) symbol; wherein the configuration of the RO includes: the time domain position of the RO and / or the frequency domain position of the RO; and determining whether the RO is a valid RO based on the configuration of the RO.

[0010] According to a second aspect of an embodiment of the present disclosure, an information transmission method is provided, wherein the method includes:

[0011] Send first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

[0012] According to a third aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a communication system and includes:

[0013] The network device sends first information to the terminal, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO;

[0014] The terminal determines whether the RO is a valid RO according to the configuration of the RO.

[0015] According to a fourth aspect of the embodiments of the present disclosure, an information transmission device is provided, wherein the device includes:

[0016] A transceiver module is configured to receive first information, wherein the first information is used to determine a configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO;

[0017] The processing module is configured to determine whether the RO is a valid RO according to the configuration of the RO.

[0018] According to a fifth aspect of the embodiments of the present disclosure, an information transmission device is provided, wherein the device includes:

[0019] The transceiver module is configured to send first information, wherein the first information is used to determine the configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

[0020] According to a sixth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a communication system, wherein the information transmission system includes a network device and a terminal;

[0021] The terminal is configured to implement the communication method according to the first aspect;

[0022] The network device is configured to implement the communication method described in the second aspect.

[0023] According to a seventh aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0024] one or more processors;

[0025] The processor is used to call instructions to enable the communication device to execute the communication method described in the first aspect or the second aspect.

[0026] According to an eighth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0027] The terminal determines whether the RO associated with the SBFD symbol is a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0028] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0030] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0031] FIG1b is a schematic diagram showing a symbol structure according to an exemplary embodiment;

[0032] FIG1c is a schematic diagram showing a symbol structure according to an exemplary embodiment;

[0033] FIG1d is a schematic diagram showing effective RO determination according to an exemplary embodiment;

[0034] FIG1e is a schematic diagram showing effective RO determination according to an exemplary embodiment;

[0035] FIG2a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0036] FIG2 b is a schematic diagram showing a symbol structure according to an exemplary embodiment;

[0037] FIG2c is a schematic diagram showing a symbol structure according to an exemplary embodiment;

[0038] FIG2 d is a schematic diagram showing a symbol structure according to an exemplary embodiment;

[0039] FIG2e is a schematic diagram showing a symbol structure according to an exemplary embodiment;

[0040] FIG2f is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0041] FIG3a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0042] FIG3 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0043] FIG3c is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0044] FIG4a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0045] FIG4 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0046] FIG5 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0047] FIG6 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0048] FIG7a is a schematic structural diagram of a terminal according to an exemplary embodiment;

[0049] FIG7b is a schematic diagram showing the structure of an access network device according to an exemplary embodiment;

[0050] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0051] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0052] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

[0053] In a first aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method includes:

[0054] Receive first information, wherein the first information is used to determine a configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO;

[0055] According to the configuration of the RO, it is determined whether the RO is a valid RO.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the valid RO satisfies at least one of the following conditions:

[0057] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0058] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0059] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0060] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0061] The valid RO is separated from a downlink DL symbol preceding the time domain position of the valid RO by at least N symbols, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0062] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0063] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0064] The valid RO is on the SBFD symbol;

[0065] The valid RO is on a non-SBFD symbol.

[0066] In the above embodiment, the effective RO may be determined based on different conditions.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is used to indicate at least one of the following:

[0068] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0069] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0070] In the above embodiment, the resource indication method is more flexible.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.

[0072] In conjunction with some embodiments of the first aspect, in some embodiments, the RO in the first RACH resource, the second RACH resource, and / or the third RACH resource includes at least one of the following categories:

[0073] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0074] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0075] A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbols;

[0076] Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by the time division duplex TDD uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0077] In combination with some embodiments of the first aspect, in some embodiments, the conditions for determining the valid ROs in the second type RO and the third type RO are different.

[0078] In combination with some embodiments of the first aspect, in some embodiments, in the third RACH resource, the first type of RO is an invalid RO.

[0079] In combination with some embodiments of the first aspect, in some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the RO in the second type of RO and / or the third type of RO where the symbol includes at least one non-SBFD symbol is an invalid RO.

[0080] In the above embodiment, the terminal determines whether the RO associated with the SBFD symbol is a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0081] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether the RO is a valid RO according to the configuration of the RO includes:

[0082] Whether the RO is a valid RO is determined based on at least whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols, and a configuration of the RO.

[0083] In the above embodiment, whether valid ROs associated with SBFD symbols are valid is determined by allowing valid ROs to contain both SBFD symbols and non-SBFD symbols, so that ROs associated with SBFD symbols can be used for random access, thereby improving resource utilization efficiency.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether the RO is a valid RO based at least on whether the valid RO is allowed to include SBFD symbols and non-SBFD symbols and the configuration of the RO includes:

[0085] A valid RO is not allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols or non-SBFD symbols and the configuration of the RO meets the first condition, the RO is determined to be the valid RO.

[0086] In the above embodiment, the first condition is used to determine whether a RO that does not include both SBFD symbols and non-SBFD symbols is a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0087] In combination with some embodiments of the first aspect, in some embodiments, the first information does not include a time division duplexing (TDD) uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0088] The RO is within a flexible (F) symbol or the RO is within a SBFD symbol;

[0089] In a Physical Random Access Channel (PRACH) time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB;

[0090] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0091] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0092] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0093] The RO is on the SBFD symbol;

[0094] The RO is on a non-SBFD symbol.

[0095] In the above embodiment, an RO that does not simultaneously include SBFD symbols and non-SBFD symbols is determined, and a common configuration for time division duplex TDD uplink and downlink transmission is not included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0096] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0097] The RO is within an uplink (UL) symbol;

[0098] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0099] In the above embodiment, an RO that does not simultaneously include SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0100] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0101] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0102] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0103] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0104] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol and not configured as an SBFD symbol;

[0105] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0106] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0107] The RO is on the SBFD symbol;

[0108] The RO is on a non-SBFD symbol.

[0109] In the above embodiment, an RO that does not simultaneously include SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0110] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether the RO is a valid RO based at least on whether the valid RO is allowed to include SBFD symbols and non-SBFD symbols and the configuration of the RO includes:

[0111] A valid RO is allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols and / or non-SBFD symbols and the configuration of the RO meets the second condition, the RO is determined to be the valid RO.

[0112] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0113] In conjunction with some embodiments of the first aspect, in some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0114] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0115] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0116] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0117] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0118] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0119] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0120] The RO is within the UL symbol;

[0121] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0122] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0123] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0124] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0125] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0126] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0127] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0128] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0129] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0130] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following:

[0131] Determining whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols according to the communication protocol;

[0132] Second information is received, where the second information is used to indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols.

[0133] In the above embodiment, whether to allow a valid RO to include SBFD symbols and non-SBFD symbols is determined through a communication protocol or a network device instruction, thereby improving configuration flexibility.

[0134] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether the RO is a valid RO according to the configuration of the RO includes:

[0135] The RO includes an SBFD symbol, and a frequency domain range of the RO has an overlapping portion with a frequency domain range outside the UL transmission on the SBFD symbol, and it is determined that the RO is not a valid RO.

[0136] In the above embodiment, ROs with overlapping frequency domains outside the frequency domain of the UL transmission on the SBFD symbol are uniformly determined as valid ROs, thereby reducing the situation where terminals supporting SBFD and terminals not supporting SBFD make inconsistent judgments on different ROs and reducing system complexity.

[0137] In combination with some embodiments of the first aspect, in some embodiments, the time domain position configured by the RO configuration includes an SBFD symbol, and the frequency domain range of the RO has no overlapping part outside the frequency domain range of the UL transmission on the SBFD symbol.

[0138] In the above embodiment, the time domain location of the RO configured by the network device includes an SBFD symbol, and the frequency domain range of the RO does not overlap with the frequency domain range of the UL transmission on the SBFD symbol. This reduces the situation where terminals that support SBFD and those that do not support SBFD have inconsistent judgment criteria for different ROs, and reduces the complexity of the mapping relationship between SSB and valid ROs.

[0139] In combination with some embodiments of the first aspect, in some embodiments, the RO configured in the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0140] In the above embodiment, the time domain location of the RO configured by the network device includes SBFD symbols, and the RO does not include both SBFD symbols and non-SBFD symbols. This reduces the situation where SBFD-capable terminals and non-SBFD-capable terminals have inconsistent judgment criteria for different ROs, and reduces the complexity of the mapping relationship between SSB and valid ROs.

[0141] In a second aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method includes:

[0142] Send first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

[0143] In the above embodiment, the terminal determines whether the RO associated with the SBFD symbol is a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0144] In conjunction with some embodiments of the second aspect, in some embodiments, the valid RO satisfies at least one of the following conditions:

[0145] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0146] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0147] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0148] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0149] The valid RO is spaced at least N symbols from a downlink DL symbol preceding the valid RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0150] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0151] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0152] The valid RO is on the SBFD symbol;

[0153] The valid RO is on a non-SBFD symbol.

[0154] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to indicate at least one of the following:

[0155] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0156] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0157] In combination with some embodiments of the second aspect, in some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.

[0158] In conjunction with some embodiments of the second aspect, in some embodiments, the ROs in the first RACH resource, the second RACH resource, and the third RACH resource include at least one of the following categories:

[0159] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0160] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0161] A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbols;

[0162] Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0163] In combination with some embodiments of the second aspect, in some embodiments, the conditions for determining the valid ROs in the second type RO and the third type RO are different.

[0164] In combination with some embodiments of the second aspect, in some embodiments, in the third RACH resource, the first type of RO is an invalid RO.

[0165] In combination with some embodiments of the second aspect, in some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the RO in the second type of RO and / or the third type of RO where the symbol includes at least one non-SBFD symbol is an invalid RO.

[0166] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used to determine whether the RO is a valid RO based at least on whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols.

[0167] In the above embodiment, whether valid ROs are allowed to include SBFD symbols and non-SBFD symbols is determined to be valid ROs, so that ROs associated with SBFD symbols can be used for random access, thereby improving resource utilization efficiency.

[0168] In combination with some embodiments of the second aspect, in some embodiments, a valid RO is not allowed to include SBFD symbols and non-SBFD symbols, the RO includes SBFD symbols or non-SBFD symbols, and the configuration of the RO meets the first condition, and the RO is the valid RO.

[0169] In the above embodiment, the first condition is used to determine whether a RO that does not include both SBFD symbols and non-SBFD symbols is a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0170] In conjunction with some embodiments of the second aspect, in some embodiments, the first information does not include a time division duplex (TDD) uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0171] The RO is within an F symbol or the RO is within an SBFD symbol;

[0172] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB;

[0173] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is a positive integer greater than or equal to 0;

[0174] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0175] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0176] The RO is on the SBFD symbol;

[0177] The RO is on a non-SBFD symbol.

[0178] In the above embodiment, an RO that does not simultaneously include SBFD symbols and non-SBFD symbols is determined, and a common configuration for time division duplex TDD uplink and downlink transmission is not included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0179] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0180] The RO is within the UL symbol;

[0181] The UL symbol is a UL symbol and is not configured as an SBFD symbol.

[0182] In the above embodiment, an RO that does not simultaneously include SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0183] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is configured with a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0184] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0185] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0186] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain; N is a positive integer greater than or equal to 0;

[0187] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol and not configured as an SBFD symbol;

[0188] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0189] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0190] The RO is on the SBFD symbol;

[0191] The RO is on a non-SBFD symbol.

[0192] In the above embodiment, an RO that does not simultaneously include SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0193] In combination with some embodiments of the second aspect, in some embodiments, a valid RO is allowed to include SBFD symbols and non-SBFD symbols, the RO includes SBFD symbols and / or non-SBFD symbols, and the configuration of the RO meets the second condition, and the RO is the valid RO.

[0194] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0195] In conjunction with some embodiments of the second aspect, in some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0196] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0197] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0198] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0199] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0200] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0201] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the second condition includes:

[0202] The RO is within the UL symbol;

[0203] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0204] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0205] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0206] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0207] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain; N is an integer greater than or equal to 0;

[0208] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0209] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0210] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0211] In the above embodiment, an RO including both SBFD symbols and non-SBFD symbols is determined, and a common configuration of time division duplex TDD uplink and downlink transmission is included, and the first information includes a semi-static SBFD configuration, which limits the conditions for a valid RO, so that the RO associated with the SBFD symbol can be used for random access, thereby improving resource utilization efficiency.

[0212] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0213] Second information is sent, where the second information is used to indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols.

[0214] In the above embodiment, whether to allow a valid RO to contain both SBFD symbols and non-SBFD symbols is determined through a communication protocol or a network device instruction, thereby improving configuration flexibility.

[0215] In combination with some embodiments of the second aspect, in some embodiments, the RO includes an SBFD symbol, and the frequency domain range of the RO has an overlapping portion outside the frequency domain range of the UL transmission on the SBFD symbol, and the RO is not a valid RO.

[0216] In the above embodiment, ROs with overlapping frequency domains outside the frequency domain of the UL transmission on the SBFD symbol are uniformly determined as valid ROs, thereby reducing the situation where terminals supporting SBFD and terminals not supporting SBFD make inconsistent judgments on different ROs and reducing system complexity.

[0217] In combination with some embodiments of the second aspect, in some embodiments, the time domain position configured by the RO configuration includes an SBFD symbol, and the frequency domain range of the RO has no overlapping part outside the frequency domain range of the UL transmission on the SBDF.

[0218] In the above embodiment, the time domain location of the RO configured by the network device includes an SBFD symbol, and the frequency domain range of the RO does not overlap with the frequency domain range of the UL transmission on the SBFD symbol. This reduces the situation where terminals that support SBFD and those that do not support SBFD have inconsistent judgment criteria for different ROs, and reduces the complexity of the mapping relationship between SSB and valid ROs.

[0219] In combination with some embodiments of the second aspect, in some embodiments, the RO configured by the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0220] In the above embodiment, the time domain location of the RO configured by the network device includes SBFD symbols, and the RO does not include both SBFD symbols and non-SBFD symbols. This reduces the situation where SBFD-capable terminals and non-SBFD-capable terminals have inconsistent judgment criteria for different ROs, and reduces the complexity of the mapping relationship between SSB and valid ROs.

[0221] In a third aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method is performed by a communication system and includes:

[0222] The network device sends first information to the terminal, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO;

[0223] The terminal determines whether the RO is a valid RO according to the configuration of the RO.

[0224] In a fourth aspect, an embodiment of the present disclosure provides an information transmission device, wherein the device includes:

[0225] A transceiver module is configured to receive first information, wherein the first information is used to determine a configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO;

[0226] The processing module is configured to determine whether the RO is a valid RO according to the configuration of the RO.

[0227] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured to: the valid RO satisfies at least one of the following conditions:

[0228] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0229] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0230] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0231] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0232] The valid RO is separated from a downlink DL symbol preceding the time domain position of the valid RO by at least N symbols, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0233] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0234] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0235] The valid RO is on the SBFD symbol;

[0236] The valid RO is on a non-SBFD symbol.

[0237] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows: the first information is used to indicate at least one of the following:

[0238] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0239] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0240] In combination with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows: the first type of terminal is a terminal that can identify sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot identify SBFD time-frequency configuration.

[0241] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured to: the RO in the first RACH resource, the second RACH resource, and / or the third RACH resource includes at least one of the following categories:

[0242] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0243] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0244] A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbols;

[0245] Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by the time division duplex TDD uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0246] In combination with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured to: determine that the conditions of the valid ROs in the second category RO and the third category RO are different.

[0247] In combination with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured to: in the third RACH resource, the first type of RO is an invalid RO.

[0248] In combination with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows: in the third RACH resource, the first type of RO is an invalid RO, and the RO in the second type of RO and / or the third type of RO where the symbol includes at least one non-SBFD symbol is an invalid RO.

[0249] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows:

[0250] Whether the RO is a valid RO is determined based on at least whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols, and a configuration of the RO.

[0251] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows:

[0252] A valid RO is not allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols or non-SBFD symbols and the configuration of the RO meets the first condition, the RO is determined to be the valid RO.

[0253] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information does not include the time division duplex TDD uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0254] The RO is within an F symbol or the RO is within an SBFD symbol;

[0255] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB;

[0256] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0257] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0258] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0259] The RO is on the SBFD symbol;

[0260] The RO is on a non-SBFD symbol.

[0261] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes:

[0262] The RO is within the UL symbol;

[0263] The UL symbol is a symbol that is not configured as an SBFD symbol.

[0264] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0265] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0266] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0267] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain; N is an integer greater than or equal to 0;

[0268] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol and not configured as an SBFD symbol;

[0269] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0270] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0271] The RO is on the SBFD symbol;

[0272] The RO is on a non-SBFD symbol.

[0273] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows:

[0274] A valid RO is allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols and / or non-SBFD symbols and the configuration of the RO meets the second condition, the RO is determined to be the valid RO.

[0275] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0276] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0277] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0278] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0279] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0280] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0281] The RO is within the UL symbol;

[0282] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0283] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0284] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0285] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain; N is an integer greater than or equal to 0;

[0286] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0287] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0288] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0289] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured to determine, according to the communication protocol, whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols; and / or,

[0290] The transceiver module is further configured to receive second information, wherein the second information is used to indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols.

[0291] In conjunction with some embodiments of the fourth aspect, in some embodiments, the transceiver module is further configured to:

[0292] The RO includes an SBFD symbol, and a frequency domain range of the RO has an overlapping portion with a frequency domain range outside the UL transmission on the SBFD symbol, and it is determined that the RO is not a valid RO.

[0293] In combination with some embodiments of the fourth aspect, in some embodiments, the time domain position configured by the RO configuration includes an SBFD symbol, and the frequency domain range of the RO has no overlapping part outside the frequency domain range of the UL transmission on the SBFD symbol.

[0294] In combination with some embodiments of the fourth aspect, in some embodiments, the RO configured by the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0295] In a fifth aspect, an embodiment of the present disclosure provides an information transmission device, wherein the device includes:

[0296] The transceiver module is configured to send first information, wherein the first information is used to determine the configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

[0297] In conjunction with some embodiments of the fifth aspect, in some embodiments, the valid RO satisfies at least one of the following conditions:

[0298] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0299] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0300] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0301] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0302] The valid RO is spaced at least N symbols from a downlink DL symbol preceding the valid RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0303] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0304] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0305] The valid RO is on the SBFD symbol;

[0306] The valid RO is on a non-SBFD symbol.

[0307] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is used to indicate at least one of the following:

[0308] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0309] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0310] In combination with some embodiments of the fifth aspect, in some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.

[0311] In conjunction with some embodiments of the fifth aspect, in some embodiments, the ROs in the first RACH resource, the second RACH resource, and the third RACH resource include at least one of the following categories:

[0312] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0313] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0314] A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbols;

[0315] Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0316] In combination with some embodiments of the fifth aspect, in some embodiments, the conditions for determining the valid ROs in the second type RO and the third type RO are different.

[0317] With reference to some embodiments of the fifth aspect, in some embodiments, in the third RACH resource, the first type of RO is an invalid RO.

[0318] In combination with some embodiments of the fifth aspect, in some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the RO in the second type of RO and / or the third type of RO where the symbol includes at least one non-SBFD symbol is an invalid RO.

[0319] In combination with some embodiments of the fifth aspect, in some embodiments, the configuration of the RO is used to determine whether the RO is a valid RO based at least on whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols.

[0320] In combination with some embodiments of the fifth aspect, in some embodiments, a valid RO is not allowed to include SBFD symbols and non-SBFD symbols, the RO includes SBFD symbols or non-SBFD symbols, and the configuration of the RO meets the first condition, and the RO is the valid RO.

[0321] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information does not include a time division duplex (TDD) uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0322] The RO is within an F symbol or the RO is within an SBFD symbol;

[0323] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB;

[0324] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is a positive integer greater than or equal to 0;

[0325] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0326] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0327] The RO is on the SBFD symbol;

[0328] The RO is on a non-SBFD symbol.

[0329] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0330] The RO is within the UL symbol;

[0331] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0332] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is configured with a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0333] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0334] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0335] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0336] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol and not configured as an SBFD symbol;

[0337] N is a positive integer greater than or equal to 0;

[0338] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0339] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0340] The RO is on the SBFD symbol;

[0341] The RO is on a non-SBFD symbol.

[0342] In combination with some embodiments of the fifth aspect, in some embodiments, a valid RO is allowed to include SBFD symbols and non-SBFD symbols, the RO includes SBFD symbols and / or non-SBFD symbols, and the configuration of the RO satisfies the second condition, and the RO is the valid RO.

[0343] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0344] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0345] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0346] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0347] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0348] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the second condition includes:

[0349] The RO is within the UL symbol;

[0350] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0351] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0352] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0353] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0354] The RO is spaced at least N symbols from the DL symbol preceding the RO time domain position; N is an integer greater than or equal to 0;

[0355] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0356] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0357] The RO has no overlap with the UL sub-band on the SBFD symbol. In conjunction with some embodiments of the fifth aspect, in some embodiments, the apparatus further includes:

[0358] Second information is sent, where the second information is used to indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols.

[0359] In combination with some embodiments of the fifth aspect, in some embodiments, the RO includes an SBFD symbol, and the frequency domain range of the RO has an overlapping part outside the frequency domain range of the UL transmission on the SBFD symbol, and the RO is not a valid RO.

[0360] In combination with some embodiments of the fifth aspect, in some embodiments, the time domain position configured by the configuration of the RO includes an SBFD symbol, and the frequency domain range of the RO has no overlapping part outside the frequency domain range of the UL transmission on the SBDF.

[0361] In combination with some embodiments of the fifth aspect, in some embodiments, the RO configured by the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0362] In a sixth aspect, an embodiment of the present disclosure provides a communication system, wherein the information transmission system includes a network device and a terminal;

[0363] The terminal is configured to implement the communication method according to the first aspect;

[0364] The network device is configured to implement the communication method described in the second aspect.

[0365] In a seventh aspect, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0366] one or more processors;

[0367] The processor is used to call instructions to enable the communication device to execute the communication method described in the first aspect or the second aspect.

[0368] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions, and when the instructions are run on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0369] In the above embodiment, the terminal can determine the service end time of the first beam and / or the service start time of the second beam, so that the terminal can perform beam switching in a timely manner, improve the time accuracy of performing beam switching related operations, and ensure service continuity.

[0370] It is understandable that the above-mentioned access network devices, terminals, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0371] The present disclosure provides an information transmission method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms "information transmission method" and "information processing method" are interchangeable; the terms "information transmission apparatus" and "information processing apparatus" are interchangeable; and the terms "communication system" and "information processing system" are interchangeable.

[0372] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0373] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0374] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0375] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0376] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0377] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0378] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0379] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0380] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0381] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0382] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0383] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0384] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0385] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0386] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0387] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0388] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0389] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0390] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0391] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0392] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0393] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0394] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0395] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

[0396] In some embodiments, the network device 102 includes at least one of the following: an access network device 1021 and a core network device 1022 .

[0397] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0398] In some embodiments, the access network device 1021 can be, for example, a node or device that accesses the terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0399] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0400] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0401] In some embodiments, the core network device 1022 includes, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0402] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0403] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0404] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0405] In order to improve uplink coverage and throughput, data communication can be carried out through subband full duplex (SBFD) technology. Specifically, on a carrier component (CC) in the downlink (DL) symbol or flexible (F) symbol, the frequency domain is divided into multiple subbands (subband, SB subbands), multiple SBs, including one UL subband and at least one DL subband. The base station can send DL signals in the DL subband and receive UL signals in the UL subband at the same time. A symbol can be configured as a DL symbol or an F symbol through TDD-UL-DL-ConfigCommon or TDD-UL-DL-ConfigDedicated, or indicated by DCI2-0. When a symbol contains both a DL subband and a UL subband in the frequency domain, it can be called an SBFD symbol. Similarly, when a time slot contains multiple symbols including at least one SBFD symbol, the time slot can be called an SBFD time slot. As shown in Figure 1b, time slot #0 is a DL time slot containing 14 DL symbols, time slots #1-3 are SBFD time slots, each containing 14 SBFD symbols, and time slot #4 is a UL time slot containing 14 UL symbols.

[0406] In addition, as shown in FIG1b , a guard band (GB) may exist between the DL subband and the UL subband to reduce interference between DL signals in the DL subband and UL signals in the UL subband through frequency domain isolation.

[0407] In SBFD symbols, the frequency domain range that can be used for UL transmission includes the following two cases:

[0408] 1. GB and DL sub-bands cannot be used for UL transmission, and UL sub-bands can be used for UL transmission.

[0409] 2. DL sub-bands cannot be used for UL transmission, while UL sub-bands and GBs can be used for UL transmission.

[0410] In SBFD symbols, the frequency domain range available for UL transmission is referred to as the UL frequency domain range, and the frequency domain range unavailable for UL transmission is referred to as "outside the UL frequency domain range." Based on the above analysis, non-SBFD symbols and SBFD symbols have different UL frequency domain ranges. The UL frequency domain range is the UL frequency domain range on the CC. In SBFD symbols, the UL frequency domain range on the UL BWP refers to the frequency domain range where the BWP overlaps with the UL frequency domain range on the CC. Unless otherwise specified, the UL frequency domain range in this embodiment refers to the UL frequency domain range on the BWP.

[0411] In random access, when the UE is in idle state, it can measure the received signal strength of the SSB beam of the initial access cell and other information to select the optimal SSB beam. In the direction of the optimal SSB beam, the physical random access channel (PRACH) signal is sent at the random access channel opportunity (RO, RACH Occasion) for random access. In addition, in other states, the UE can also send a PRACH signal at RO for random access. Random access includes: contention-based random access (CBRA) and contention-free random access (CFRA). In CBRA, there are multiple UEs using the same preamble, that is, the PRACH signals of two UEs conflict. This conflict will cause random access to fail.

[0412] In SBFD symbols, UEs can transmit uplink signals in the UL SB. Therefore, as shown in Figure 1c, configuring ROs in SBFD symbols increases the number of ROs compared to configuring ROs only in UL or F symbols. SBFD-aware UEs (SBFD-aware UEs) are UEs that can identify SBFD symbols and can perform random access in ROs configured in SBFD symbols, reducing access latency and the probability of PRACH signal collisions between different UEs in CBRA.

[0413] After configuring an RO, it's necessary to determine whether it's valid. Only valid ROs can be used to transmit PRACH signals. SBFD symbols and UL symbols have different frequency domains for UL transmission. Furthermore, whether a single PRACH transmission can span both SBFD and non-SBFD symbols remains to be studied. Therefore, determining whether an RO is valid requires further consideration of the following factors:

[0414] The frequency domain ranges that SBFD symbols and UL symbols can use for UL transmission are different;

[0415] Whether a valid RO can span SBFD and non-SBFD symbols.

[0416] In some embodiments, whether an RO is a valid RO may be determined based on the following conditions.

[0417] As shown in Figure 1d, tdd-UL-DL-ConfigurationCommon is not configured:

[0418] Solution 1-1: The RO that meets condition 1-1-1 is a valid RO:

[0419] Condition 1-1-1: The RO does not precede an SS / PBCH block in the PRACH slot. The RO must be at least N symbols away from the last symbol of the previous SSB.

[0420] As shown in Figure 1e, tdd-UL-DL-ConfigurationCommon has the following configuration:

[0421] Solution 2-1: An RO that meets conditions 2-1-1 or 2-1-2 is a valid RO:

[0422] Condition 2-1-1: RO is within the UL symbol;

[0423] Condition 2-1-2: In a PRACH slot, the RO does not precede the SSB; the RO is separated from the last symbol of the previous SSB by at least N symbols; and the RO is separated from the previous DL symbol by at least N symbols.

[0424] In the above solution, N is an integer greater than or equal to 0 and can be determined according to the communication protocol.

[0425] In the above embodiment, the determination of a valid RO does not take into account the following factors: the different frequency domain ranges available for UL transmission for SBFD symbols and UL symbols; whether a valid RO can span both SBFD and non-SBFD symbols; whether a RO can precede an SSB in a PRACH slot; whether the interval between a RO and the symbol containing the previous SSB can be zero; and whether a RO can overlap in the time domain between an SBFD symbol and an SSB. Therefore, considering the different frequency domain ranges available for UL transmission for SBFD symbols and UL symbols, and whether a valid RO can span both SBFD and non-SBFD symbols, determining a valid RO is an urgent issue.

[0426] FIG2a is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to an information transmission method for a communication system 100, the method comprising:

[0427] Step S2101: The network device sends the first message

[0428] In some embodiments, the network device sends first information to the terminal.

[0429] In some embodiments, the terminal may be a first type terminal.

[0430] In some embodiments, the first type of terminal is a terminal capable of identifying sub-band full-duplex (SBFD) time-frequency configuration (SBFD aware UE).

[0431] In some embodiments, the second type of terminal in the present disclosure is a terminal that cannot identify the SBFD time-frequency configuration (non-SBFD aware UE).

[0432] In some embodiments, the first information is used to determine a configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol.

[0433] In some embodiments, the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO.

[0434] In some embodiments, the time domain location may include at least one of the following: a time domain resource range of the RO, a starting position of the time domain resources of the RO, and an ending position of the time domain resources of the RO.

[0435] In some embodiments, the frequency domain position may include at least one of the following: a frequency domain resource range of the RO, a starting position of the frequency domain resources of the RO, and an ending position of the frequency domain resources of the RO.

[0436] In some embodiments, the terminal is a terminal supporting SBFD. The terminal supporting SBFD may include a terminal that can recognize SBFD symbols.

[0437] In some embodiments, the terminal supporting SBFD may be a first type terminal.

[0438] In some embodiments, the first type of terminal can use UL sub-band (SB) resources of SBFD symbols for uplink transmission and / or use DL SB resources of SBFD symbols for downlink transmission.

[0439] In some embodiments, the RO is used for the terminal to send a PRACH signal to the access network device to initiate random access.

[0440] In some embodiments, the SBFD symbol is a symbol that includes one UL sub-band and at least one DL sub-band in the frequency domain.

[0441] In some embodiments, the symbols may include: Orthogonal Frequency Divisition Multiplexing (OFDM) symbols.

[0442] In some embodiments, the RO associated with the SBFD symbol is determined based on a relationship between the frequency domain position and / or time domain position of the RO and the SBFD symbol.

[0443] In some embodiments, the RO associated with the SBFD symbol includes at least one of the following: the time domain position of the RO is within the SBFD symbol; the time domain position of the RO is partially within the SBFD symbol; the frequency domain range of the RO on the SBFD symbol is within the UL transmission frequency domain range of the SBFD symbol; the frequency domain range of the RO on the SBFD symbol is partially within the UL transmission frequency domain range of the SBFD symbol.

[0444] In some embodiments, non-SBFD symbols include UL symbols, DL symbols, and F symbols.

[0445] In some embodiments, as shown in FIG1c , the RO in the UL sub-band (SB) is the RO associated with the SBFD symbol.

[0446] In some embodiments, the configuration of the RO may be a configuration index, wherein the configuration index may be used to determine the RO time domain. For example, the configuration index may be prach-ConfigurationIndex.

[0447] In some embodiments, the first information is also used for at least one of the following: a mapping relationship between RO and SSB index; and the number of preamble codes corresponding to one SSB.

[0448] In some embodiments, the mapping relationship between RO and SSB index includes: a mapping relationship between RO and SSB index number.

[0449] In some embodiments, the mapping relationship between RO and SSB index number is used to indicate the SSB index number mapped to the RO.

[0450] In some embodiments, the terminal may determine a valid RO for transmitting the PRACH signal according to the configuration of the RO indicated by the first information.

[0451] In some embodiments, the first information may include TDD uplink and downlink transmission common configuration.

[0452] In some embodiments, the TDD uplink and downlink transmission common configuration is used to configure the carrier component as a non-SBFD symbol.

[0453] In some embodiments, the non-SBFD symbol includes at least one of the following: a DL symbol; a UL symbol; an F symbol.

[0454] In some embodiments, the TDD-UL-DL-ConfigCommon configuration may indicate a TDD uplink and downlink transmission common configuration.

[0455] In some embodiments, the TDD-UL-DL-ConfigCommon configuration may be a cell-granular configuration.

[0456] In some embodiments, the first information may not include TDD uplink and downlink transmission common configuration.

[0457] In some embodiments, when the first information does not include TDD uplink and downlink transmission common configuration, the carrier component may be an F symbol.

[0458] In some embodiments, the first information includes: a semi-static SBFD configuration.

[0459] In some embodiments, the first information includes: TDD uplink and downlink transmission common configuration and / or semi-static SBFD configuration.

[0460] In some embodiments, the TDD uplink and downlink transmission common configuration may configure the carrier component as a non-SBFD symbol, and the semi-static SBFD configuration may configure the non-SBFD symbol as a SBFD symbol.

[0461] In some embodiments, the first information is used to indicate at least one of the following:

[0462] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0463] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0464] In some embodiments, the first type of terminal is a SBFD aware UE.

[0465] In some embodiments, the second type of terminal is a non-SBFD aware UE.

[0466] In some embodiments, one set of RACH resources is configured through first information for non-SBFD aware UEs and SBFD aware UEs, which is referred to as first RACH resources.

[0467] In some embodiments, two sets of RACH resources are configured through the first information for non-SBFD aware UE and SBFD aware UE, respectively, which are called second RACH resources and third RACH resources respectively.

[0468] In some embodiments, the SBFD aware UE may use or be able to use RO in the second RACH resource.

[0469] In some embodiments, the RO in the first RACH resource, the second RACH resource and / or the third RACH resource comprises at least one of the following categories:

[0470] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0471] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0472] The third type of RO is an RO including the second type of SBFD symbols.

[0473] In some embodiments, the first type of SBFD symbols are symbols configured as flexible F symbols by TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0474] In some embodiments, one set of RACH resources is configured for non-SBFD aware UE and SBFD aware UE, referred to as the first RACH resource; two sets of RACH resources are configured for non-SBFD aware UE and SBFD aware UE, referred to as the second RACH resource and the third RACH resource.

[0475] In some embodiments, the SBFD aware UE may use or be able to use RO in the second RACH resource.

[0476] In some embodiments, the ROs included in the first RACH resource, the second RACH resource, and the third RACH resource include at least one of the following RO categories:

[0477] The first type of RO: RO that contains only non-SBFD symbols and does not contain SBFD symbols;

[0478] The second type of RO: RO that includes SBFD (legacy F) but does not include SBFD (legacy DL); SBFD (legacy F): TDD-UL-DL-ConfigCommon is configured as F or there is no TDD-UL-DL-ConfigCommon configuration, and the configuration is SBFD symbols; SBFD (legacy DL): TDD-UL-DL-ConfigCommon is configured as DL, and the configuration is SBFD symbols;

[0479] The third type of RO: RO including SBFD (legacy DL).

[0480] In some embodiments, the conditions for determining valid ROs in the second and third category ROs may be different.

[0481] In some embodiments, in the third RACH resource, the conditions for determining a valid RO in the present disclosure are used to determine a valid RO in the first category RO, the second category RO, and / or the third category RO.

[0482] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the conditions for determining a valid RO in the present disclosure are used to determine a valid RO in the second type of RO and / or the third type of RO.

[0483] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and in the second type of RO and / or the third type of RO, the symbol where the RO is located includes at least one non-SBFD symbol. ROs other than the invalid RO are determined to be valid ROs based on the conditions in the present disclosure.

[0484] Step S2102: The terminal determines whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols to send a PRACH signal.

[0485] In some embodiments, a communication protocol may specify whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols for transmitting a PRACH signal.

[0486] In some embodiments, the terminal may determine, according to a communication protocol, whether to allow a valid RO to include SBFD symbols and non-SBFD symbols for transmitting a PRACH signal, or not to allow a valid RO to include SBFD symbols and non-SBFD symbols for transmitting a PRACH signal.

[0487] In some embodiments, the valid RO includes SBFD symbols and non-SBFD symbols, and the valid RO may include both SBFD symbols and non-SBFD symbols.

[0488] In some embodiments, the valid RO does not include SBFD symbols and non-SBFD symbols, or the valid RO does not include both SBFD symbols and non-SBFD symbols. For example, the valid RO may include SBFD symbols but not non-SBFD symbols, or the valid RO may include non-SBFD symbols but not SBFD symbols.

[0489] In some embodiments, the RO includes SBFD symbols and non-SBFD symbols, including: the RO is carried by I SBFD symbols and J non-SBFD symbols, where I and J are integers greater than or equal to 1.

[0490] In some embodiments, this embodiment does not limit the execution order of step S2101 and step S2102. Step S2101 may be executed first and then step S2102, or step S2102 may be executed first and then step S2101, or they may be executed simultaneously.

[0491] Step S2103: The terminal determines whether the RO is a valid RO.

[0492] In some embodiments, the valid RO satisfies at least one of the following conditions:

[0493] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0494] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0495] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0496] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0497] The valid RO is separated from a downlink DL symbol preceding the time domain position of the valid RO by at least N symbols, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0498] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0499] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0500] The valid RO is on the SBFD symbol;

[0501] The valid RO is on a non-SBFD symbol. In some embodiments, the UL symbol is configured as a UL symbol by TDD-UL-DL-ConfigCommon and is not configured as a SBFD symbol.

[0502] In some embodiments, the DL symbols are configured as DL symbols by TDD-UL-DL-ConfigCommon and are not configured as SBFD symbols.

[0503] In some embodiments, a valid RO must meet at least one of the following conditions:

[0504] Condition 5-0: The RO is within a UL symbol; wherein the UL symbol is configured as UL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol;

[0505] Condition 5-1: In a PRACH slot, the RO does not precede the SSB;

[0506] Condition 5-2: The interval between RO and the symbol containing the previous SSB is at least N symbols;

[0507] Condition 5-3: RO has no time overlap with SSB in non-SBFD symbols;

[0508] Condition 5-4: The RO is separated from the previous DL symbol by at least N symbols; wherein the DL symbol is configured as DL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol;

[0509] Condition 5-5: The RO does not overlap with the UL subband on the SBFD symbol;

[0510] Condition 5-6: The RO does not contain both SBFD and non-SBFD symbols (i.e., a valid RO cannot span SBFD and non-SBFD symbols).

[0511] Condition 5-7: RO is on the SBFD symbol (i.e., valid RO can only be on the SBFD symbol);

[0512] Condition 5-8: The RO is on a non-SBFD symbol (i.e., a valid RO can only be on a non-SBFD symbol).

[0513] In some embodiments, the terminal determines whether the RO is a valid RO according to the configuration of the RO.

[0514] In some embodiments, determining whether the RO is a valid RO according to the configuration of the RO includes determining whether the RO is a valid RO based at least on whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols and the configuration of the RO.

[0515] In some embodiments, the conditions for the UE to determine whether the RO is a valid RO may be different for allowing the valid RO to include SBFD symbols and non-SBFD symbols, or not allowing the valid RO to include SBFD symbols and non-SBFD symbols.

[0516] In some embodiments, the determining whether the RO is a valid RO based at least on whether the valid RO is allowed to include SBFD symbols and non-SBFD symbols and the configuration of the RO includes:

[0517] A valid RO is not allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols or non-SBFD symbols and the configuration of the RO meets the first condition, the RO is determined to be the valid RO.

[0518] In some embodiments, the first condition may be specified by a communication protocol.

[0519] In some embodiments, the first condition may be indicated by a network device.

[0520] In some embodiments, the RO does not include SBFD symbols and non-SBFD symbols include one of the following:

[0521] In the time domain range of RO, RO is on a non-SBFD symbol, for example, RO is on an F symbol.

[0522] In the time domain range of RO, RO is on the SBFD symbol. For example, RO is on the UL subband in the SBFD symbol.

[0523] In some embodiments, the first information does not include a time division duplex (TDD) uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following: the RO is within an F symbol or the RO is within an SBFD symbol; within a PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block (SSB); the RO and the last symbol of the SSB symbol preceding the RO time domain position are separated in the time domain by at least N symbols, where N is an integer greater than or equal to 0; the RO does not overlap with the time domain position of the SSB on a non-SBFD symbol; the RO does not overlap outside the UL subband on a SBFD symbol; the RO is on an SBFD symbol; the RO is on a non-SBFD symbol. In this embodiment, the RO and the last symbol of the SSB symbol preceding the RO time domain position are separated in the time domain by at least N symbols, which can be the case where the first symbol of the RO symbol and the last symbol of the SSB symbol preceding the RO time domain position are separated in the time domain by at least N symbols.

[0524] In some embodiments, the first information does not include the TDD uplink and downlink transmission common configuration, including: the network device is not configured with the TDD uplink and downlink transmission common configuration.

[0525] In some embodiments, when the first information does not include the TDD uplink and downlink transmission common configuration, the symbols on the carrier component are all F symbols.

[0526] In some embodiments, semi-static SBFD configuration may be used to configure F symbols on a carrier component as SBFD symbols.

[0527] In some embodiments, N may be specified by a communication protocol or indicated by a network device.

[0528] In some embodiments, N may be represented by N.

[0529] In some embodiments, the first information does not include a time division duplex (TDD) uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes: the RO is within the F symbol or the RO is within the SBFD symbol; within the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB; the RO and the last symbol of the SSB symbol before the RO time domain position are spaced at least N symbols apart in the time domain, where N is an integer greater than or equal to 0; the RO does not overlap with the time domain position of the SSB on non-SBFD symbols; the RO does not overlap outside the UL subband on the SBFD symbol.

[0530] For example, as shown in FIG2b , in time slot #3, symbols, such as orthogonal frequency division multiplexing symbols (OFDM symbols, OS) #0 to #10 are SBFD, OS #11-13 are F, and RO #9, 10, and 11 are both SBFD and non-SBFD symbols (UL, DL, F), and are judged as invalid ROs.

[0531] For example, as shown in Figure 2b, RO#0,1,3,4,6,7 are in the SBFD symbol, and RO#12~17 are in the F symbol; in the PRACH time slot, the time domain position of RO#0,1,3,4,6,7,12~17 is not before the SSB time domain position; the time domain position of RO#0,1,3,4,6,7,12~17 is separated from the last symbol of the previous SSB by at least N symbols in the time domain. At this time, RO#0,1,3,4,6,7,12~17 are valid ROs.

[0532] In some embodiments, the first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the first condition includes at least one of the following: the RO is within a UL symbol; the UL symbol is a symbol configured as a UL symbol by TDD-UL-DL-ConfigCommon and not configured as an SBFD symbol.

[0533] In some embodiments, the RO is carried by a UL symbol configured by the TDD uplink and downlink transmission common configuration, and the UL symbol is a symbol configured as a UL symbol by TDD-UL-DL-ConfigCommon and not configured as a SBFD symbol, then the RO is a valid RO.

[0534] For example, as shown in FIG2c , in time slot #3, OS#0-10 are SBFD, OS#11-13 are UL, and RO#9, 10, 11 are both in SBFD and non-SBFD symbols, and are judged as invalid ROs.

[0535] Exemplarily, as shown in FIG2c , RO# 12 to 17 are within UL symbols, which are symbols configured as UL symbols by TDD-UL-DL-ConfigCommon and are not configured as SBFD symbols. In this case, RO# 12 to 17 are valid ROs.

[0536] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0537] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0538] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0539] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0540] The RO is spaced at least N symbols from the DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol by TDD-UL-DL-ConfigCommon and not configured as an SBFD symbol; N is an integer greater than or equal to 0;

[0541] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0542] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0543] The RO is on the SBFD symbol;

[0544] The RO is on a non-SBFD symbol.

[0545] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes:

[0546] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0547] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0548] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0549] The RO is spaced at least N symbols from the DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol by TDD-UL-DL-ConfigCommon and not configured as an SBFD symbol; N is an integer greater than or equal to 0;

[0550] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0551] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0552] For example, as shown in FIG2c , in time slot #3, OS#0-10 are SBFD, OS#11-13 are UL, and RO#9, 10, 11 are both in SBFD and non-SBFD symbols, and are judged as invalid ROs.

[0553] In this embodiment, the RO is spaced at least N symbols from the DL symbol before the RO time domain position. This may be the case where the first symbol where the RO is located is spaced at least N symbols from the DL symbol before the RO time domain position.

[0554] For example, as shown in Figure 2c, RO#0,1,3,4,6,7 are in the SBFD symbol, and RO#12~17 are in the UL symbol; in the PRACH time slot, the time domain position of RO#0,1,3,4,6,7,12~17 is not before the SSB time domain position; the time domain position of RO#0,1,3,4,6,7,12~17 is separated from the last symbol of the previous SSB in the time domain by at least N symbols; the time domain position of RO#0,1,3,4,6,7,12~17 is separated from the previous DL symbol in the time domain by at least N symbols; at this time, RO#0,1,3,4,6,7,12~17 is a valid RO.

[0555] In some embodiments, the determining whether the RO is a valid RO based at least on whether the valid RO is allowed to include SBFD symbols and non-SBFD symbols and the configuration of the RO includes:

[0556] A valid RO is allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols and / or non-SBFD symbols and the configuration of the RO meets the second condition, the RO is determined to be the valid RO.

[0557] In some embodiments, the second condition may be specified by a communication protocol.

[0558] In some embodiments, the second condition may be indicated by a network device.

[0559] In some embodiments, the RO includes SBFD symbols and non-SBFD symbols, including: within the time domain range of the RO, the RO is carried by the SBFD symbols and the non-SBFD symbols.

[0560] In some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0561] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0562] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0563] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0564] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0565] In some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes:

[0566] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0567] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0568] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0569] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0570] In some embodiments, N may be specified by a communication protocol or indicated by a network device.

[0571] In some embodiments, N may be represented by N.

[0572] In some embodiments, the RO and the last symbol of the SSB symbol before the RO time domain position are spaced at least N symbols apart in the time domain, including: in the time domain, the first symbol of the RO and the last symbol of the SSB are spaced at least N symbols apart. For example, as shown in Figure 2d, in time slot #3, OS#0~10 are SBFD, OS#11-13 are F, RO#9,10 are in both SBFD and non-SBFD symbols; RO#0,1,3,4,6,7 are in SBFD symbols, and RO#12~17 are in F symbols; in the PRACH time slot, the time domain positions of RO#0,1,3,4,6,7,9,10,12~17 are not before the SSB time domain position; the time domain positions of RO#0,1,3,4,6,7,9,10,12~17 are separated from the last symbol of the previous SSB in the time domain by at least N symbols. At this time, RO#0,1,3,4,6,7,9,10,12~17 are valid ROs.

[0573] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0574] The RO is within the UL symbol;

[0575] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0576] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes:

[0577] The RO is within the UL symbol.

[0578] In some embodiments, if the RO is a UL symbol configured by the TDD uplink and downlink common configuration, and the UL symbol is a symbol configured as a UL symbol by TDD-UL-DL-ConfigCommon and not configured as a SBFD symbol, then the RO is a valid RO.

[0579] Exemplarily, as shown in FIG2e , RO# 12 to 17 are within a UL symbol, and the UL symbol becomes a UL symbol after being configured by the semi-static SBFD configuration. At this time, RO# 12 to 17 are valid ROs.

[0580] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0581] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0582] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0583] The RO is spaced at least N symbols from the DL symbol preceding the RO time domain position; N is an integer greater than or equal to 0;

[0584] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0585] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0586] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0587] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes:

[0588] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0589] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0590] N is an integer greater than or equal to 0;

[0591] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0592] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0593] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0594] In some embodiments, N may be specified by a communication protocol or indicated by a network device.

[0595] In some embodiments, N may be represented by N.

[0596] In some embodiments, the RO is spaced at least N symbols apart from the last symbol of the SSB symbol preceding the RO time domain position in the time domain, including: in the time domain, the first symbol of the RO is spaced at least N symbols apart from the last symbol of the SSB. For example, as shown in FIG2e, in time slot #3, OS#0 to 10 are SBFD, OS#11-13 are UL, RO#9 and 10 are both SBFD and non-SBFD symbols, RO#0,1,3,4,6,7 are within SBFD symbols, and RO#12 to 17 are within UL symbols; in the PRACH time slot, the time domain positions of RO#0,1,3,4,6,7,9,10,12 to 17 are not within the SSB time domain position. Before the RO is set, the time domain position of RO#0,1,3,4,6,7,9,10,12~17 is separated from the last symbol of the previous SSB symbol by at least N symbols in the time domain; the time domain position of RO#0,1,3,4,6,7,9,10,12~17 is separated from the last DL symbol by at least N symbols in the time domain; at this time, RO#0,1,3,4,6,7,9,10,12~17 are valid ROs.

[0597] In some embodiments, determining whether the RO is a valid RO according to the configuration of the RO includes:

[0598] The RO includes an SBFD symbol, and a frequency domain range of the RO has an overlapping portion with a frequency domain range outside the UL transmission on the SBFD symbol, and it is determined that the RO is not a valid RO.

[0599] In some embodiments, in an SBFD symbol, the frequency domain range available for UL transmission on a CC is the frequency domain range of a UL subband.

[0600] In some embodiments, in an SBFD symbol, the frequency domain range available for UL transmission on a CC is the frequency domain range of a UL subband and a GB.

[0601] In some embodiments, the frequency domain range of UL transmission on an SBFD symbol refers to the frequency domain range of UL transmission on a UL BWP, where the frequency domain range of UL transmission on the UL BWP is a frequency domain range where the UL BWP overlaps with the frequency domain range of UL transmission on a CC. Unless otherwise specified, in this embodiment, the frequency domain range of UL transmission on an SBFD symbol refers to the frequency domain range of UL transmission on the UL BWP.

[0602] In some embodiments, the frequency domain range of the RO has an overlapping part outside the frequency domain range of the UL transmission on the SBFD symbol, including: the first sub-frequency domain range in the frequency domain range of the RO is located within the frequency domain range of the UL transmission on the SBFD symbol, and the second sub-frequency domain range in the frequency domain range of the RO is located outside the frequency domain range of the UL transmission on the SBFD symbol.

[0603] For example, as shown in FIG2b , FIG2c , FIG2d and FIG2e , a portion of the frequency domain range of RO#2, 5, 8, and 11 is outside the frequency domain range of UL transmission on the SBFD symbol, and the RO is determined to be not a valid RO.

[0604] In some embodiments, the time domain position configured by the configuration of the RO includes an SBFD symbol, and the frequency domain range of the RO has no overlapping portion outside the frequency domain range of the UL transmission on the SBFD symbol.

[0605] In some embodiments, the first information includes: TDD uplink and downlink transmission common configuration and / or semi-static SBFD configuration.

[0606] In some embodiments, a first-type terminal does not expect an RO to be a valid RO for a second-type terminal, and the first-type terminal is an invalid RO. The second-type terminal does not support SBFD symbols, i.e., cannot recognize a symbol as an SBFD symbol; the first-type terminal supports SBFD symbols, i.e., can recognize a symbol as an SBFD symbol.

[0607] For example, as shown in Figure 2b, the TDD uplink and downlink common transmission configuration is not configured. The symbol where RO#8 is located is initially an F symbol. The F symbol is configured to SBFD through semi-static SBFD. The frequency domain range of RO#8 overlaps with the frequency domain range of the UL transmission of the SBFD symbol. Therefore, for the first type of terminal, RO#8 is an invalid RO. However, for the second type of terminal, the symbol where RO#8 is located is an F symbol and is a valid RO.

[0608] In some embodiments, the RO configured by the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0609] In some embodiments, a first-type terminal does not expect a RO to be a valid RO for a second-type terminal, and the first-type terminal is an invalid RO. The second-type terminal does not support SBFD symbols, i.e., cannot recognize a symbol as an SBFD symbol; the first-type terminal supports SBFD symbols, i.e., can recognize a symbol as an SBFD symbol.

[0610] For example, the TDD uplink and downlink transmission common configuration is not configured or the TDD uplink and downlink transmission common configuration is configured, and the configuration symbol #m is F. For example, for the first type of terminal, when a valid RO cannot span SBFD symbols and non-SBFD symbols, symbol #m is configured as an SBFD symbol through semi-static SBFD, and some ROs span SBFD symbols and non-SBFD symbols, and the non-SBFD symbols are F or UL symbols, then the RO is invalid. As shown in Figures 2b and 2c, RO#9, 10, and 11 span SBFD symbols and non-SBFD symbols (UL symbols), respectively. Therefore, for the first type of terminal, RO#9, 10, and 11 are all invalid ROs. However, for the second type of terminal, the symbols where RO#9, 10, and 11 are located are F or UL, which are valid ROs.

[0611] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0612] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0613] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and step S2103 may be implemented as an independent embodiment. For example, step S2101 combined with step S2103 may be implemented as independent embodiments. However, this is not limiting.

[0614] In some embodiments, step S2101 and step S2102 may be executed in an interchanged order or simultaneously.

[0615] In some embodiments, step S2101 and step S2102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0616] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0617] FIG2f is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG2f , the present disclosure embodiment relates to an information transmission method for use in a communication system 100, the method comprising:

[0618] Step S2201: The network device sends the first message

[0619] In some embodiments, the optional implementation of step S2201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0620] Step S2202: The network device sends the second information

[0621] In some embodiments, the network device sends the second information to the terminal.

[0622] In some embodiments, the second information may indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols for transmitting a PRACH signal.

[0623] In some embodiments, the terminal may determine, based on the second information, whether to allow a valid RO to include SBFD symbols and non-SBFD symbols to send a PRACH signal, or not to allow a valid RO to include SBFD symbols and non-SBFD symbols to send a PRACH signal.

[0624] In some embodiments, the RO includes SBFD symbols and non-SBFD symbols, including: the RO is carried by I SBFD symbols and J non-SBFD symbols, where I and J are integers greater than or equal to 1.

[0625] In some embodiments, the first information and the second information may be the same information or different information.

[0626] In some embodiments, this embodiment does not limit the execution order of step S2201 and step S2202. Step S2201 may be executed first and then step S2202, or step S2202 may be executed first and then step S2201, or they may be executed simultaneously.

[0627] Step S2203: The terminal determines whether the RO is a valid RO.

[0628] In some embodiments, the optional implementation of step S2203 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0629] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0630] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0631] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2203. For example, step S2201 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, and step S2203 may be implemented as an independent embodiment. For example, step S2201 combined with step S2203 may be implemented as independent embodiments. However, this is not limiting.

[0632] In some embodiments, step S2201 and step S2202 may be executed in an interchanged order or simultaneously.

[0633] In some embodiments, step S2201 and step S2202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0634] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0635] FIG3a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101, which may be a first type terminal. The method includes:

[0636] Step S3101: Obtain first information.

[0637] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0638] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0639] In some embodiments, the terminal obtains first information specified by the protocol.

[0640] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0641] In some embodiments, the terminal performs processing to obtain the first information.

[0642] In some embodiments, step S3101 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0643] Step S3102: Determine whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols to transmit a PRACH signal.

[0644] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0645] Step S3103: Determine whether the RO is a valid RO.

[0646] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0647] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3101 can be implemented as an independent embodiment, step S3102 can be implemented as an independent embodiment, step S3103 can be implemented as an independent embodiment, step S3101 combined with step S3102 can be implemented as an independent embodiment, and step S3101 combined with steps S3102 and 3103 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0648] In some embodiments, step S3101 and step S3102 may be executed in an interchanged order or simultaneously.

[0649] In some embodiments, step S3101 and step S3102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0650] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0651] FIG3b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0652] Step S3201: Obtain first information.

[0653] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2f and other related parts of the embodiment involved in Figure 2f, which will not be repeated here.

[0654] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0655] In some embodiments, the terminal obtains first information specified by the protocol.

[0656] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0657] In some embodiments, the terminal performs processing to obtain the first information.

[0658] In some embodiments, step S3201 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0659] Step S3202: Obtain second information.

[0660] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2f and other related parts of the embodiment involved in Figure 2f, which will not be repeated here.

[0661] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto and may also receive the first information sent by other entities.

[0662] In some embodiments, the terminal obtains first information specified by the protocol.

[0663] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0664] In some embodiments, the terminal performs processing to obtain the first information.

[0665] In some embodiments, step S3202 is omitted, the terminal autonomously implements the function indicated by the first information, or the above function is default or by default.

[0666] Step S3203: Determine whether the RO is a valid RO.

[0667] In some embodiments, the optional implementation of step S3203 can refer to the optional implementation of step S2203 in Figure 2f and other related parts of the embodiment involved in Figure 2f, which will not be repeated here.

[0668] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S3201 to S3203. For example, step S3201 can be implemented as an independent embodiment, step S3202 can be implemented as an independent embodiment, step S3202 can be implemented as an independent embodiment, step S3201 combined with step S3202 can be implemented as an independent embodiment, and step S3201 combined with steps S3202 and S3203 can be implemented as independent embodiments, but the embodiments are not limited thereto.

[0669] In some embodiments, step S3201 and step S3202 may be executed in an interchangeable order or simultaneously.

[0670] In some embodiments, step S3201 and step S3202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0671] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0672] FIG3c is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3c, the present disclosure embodiment relates to an information transmission method, which is executed by terminal 101 and includes:

[0673] Step S3301: The terminal receives first information.

[0674] In some embodiments, the first information is used to determine a configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO;

[0675] In some embodiments, the terminal determines whether the RO is a valid RO according to the configuration of the RO.

[0676] In some embodiments, the valid RO satisfies at least one of the following conditions:

[0677] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0678] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0679] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0680] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0681] The valid RO is separated from a downlink DL symbol preceding the time domain position of the valid RO by at least N symbols, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0682] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0683] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0684] The valid RO is on the SBFD symbol;

[0685] The valid RO is on a non-SBFD symbol.

[0686] In some embodiments, the first information is used to indicate at least one of the following:

[0687] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0688] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0689] In some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex (SBFD) time-frequency configuration; and the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.

[0690] In some embodiments, the RO in the first RACH resource, the second RACH resource and / or the third RACH resource comprises at least one of the following categories:

[0691] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0692] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0693] A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbols;

[0694] Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by the time division duplex TDD uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0695] In some embodiments, the conditions for determining the valid ROs in the second and third types of ROs are different.

[0696] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO.

[0697] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the ROs in the second type of RO and / or the third type of RO where the symbol where the RO is located includes at least one non-SBFD symbol are invalid ROs.

[0698] In some embodiments, the terminal determines whether the RO is a valid RO based at least on whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols, and the configuration of the RO.

[0699] In some embodiments, a valid RO is not allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols or non-SBFD symbols and the configuration of the RO meets a first condition, the RO is determined to be the valid RO.

[0700] In some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0701] The RO is within an F symbol or the RO is within an SBFD symbol;

[0702] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB;

[0703] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0704] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0705] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0706] The RO is on the SBFD symbol;

[0707] The RO is on a non-SBFD symbol.

[0708] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0709] The RO is within an uplink UL symbol;

[0710] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0711] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0712] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0713] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0714] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0715] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol and not configured as an SBFD symbol;

[0716] N is an integer greater than or equal to 0;

[0717] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0718] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0719] The RO is on the SBFD symbol;

[0720] The RO is on a non-SBFD symbol.

[0721] In some embodiments, a valid RO is allowed to include SBFD symbols and non-SBFD symbols, the RO includes SBFD symbols and / or non-SBFD symbols, and the configuration of the RO meets a second condition, and the RO is determined to be the valid RO.

[0722] In some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0723] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0724] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0725] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0726] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0727] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0728] The RO is within the UL symbol;

[0729] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0730] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0731] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0732] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0733] The RO is spaced at least N symbols from the DL symbol preceding the RO time domain position; N is an integer greater than or equal to 0;

[0734] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0735] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0736] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0737] In some embodiments, the method further comprises at least one of the following:

[0738] The terminal determines whether to allow a valid RO to contain SBFD symbols and non-SBFD symbols according to the communication protocol;

[0739] The terminal receives second information, where the second information is used to indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols.

[0740] In some embodiments, the RO includes an SBFD symbol, and a frequency domain range of the RO has an overlapping portion with a frequency domain range outside the UL transmission on the SBFD symbol, and the RO is determined to be not a valid RO.

[0741] In some embodiments, the time domain position configured by the configuration of the RO includes an SBFD symbol, and the frequency domain range of the RO has no overlapping portion outside the frequency domain range of the UL transmission on the SBFD symbol.

[0742] In some embodiments, the RO configured by the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0743] FIG4a is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4a, the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102 and includes:

[0744] Step S4101: Send the first message.

[0745] In some embodiments, the first information is used to determine a configuration of a random access opportunity (RO) associated with a sub-band full-duplex (SBFD) symbol.

[0746] In some embodiments, the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO.

[0747] In some embodiments, the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

[0748] In some embodiments, the valid RO satisfies at least one of the following conditions:

[0749] The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as an SBFD symbol;

[0750] In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB;

[0751] The valid RO and the last symbol of the SSB symbol preceding the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0752] The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0753] The valid RO is spaced at least N symbols from a downlink DL symbol preceding the valid RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0754] The valid RO has no overlap with the UL sub-band on the SBFD symbol;

[0755] The valid RO does not include SBFD symbols and non-SBFD symbols at the same time;

[0756] The valid RO is on the SBFD symbol;

[0757] The valid RO is on a non-SBFD symbol.

[0758] In some embodiments, the first information is used to indicate at least one of the following:

[0759] A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal;

[0760] The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

[0761] In some embodiments, the first type of terminal is a terminal that can recognize sub-band full-duplex (SBFD) time-frequency configuration; and the second type of terminal is a terminal that cannot recognize SBFD time-frequency configuration.

[0762] In some embodiments, the ROs in the first RACH resource, the second RACH resource, and the third RACH resource include at least one of the following categories:

[0763] A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols;

[0764] A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbols and does not include the second type of SBFD symbols;

[0765] A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbols;

[0766] Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

[0767] In some embodiments, the conditions for determining the valid ROs in the second and third types of ROs are different.

[0768] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO.

[0769] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the ROs in the second type of RO and / or the third type of RO where the symbol where the RO is located includes at least one non-SBFD symbol are invalid ROs.

[0770] In some embodiments, the configuration of the RO is used to determine whether the RO is a valid RO based at least on whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols.

[0771] In some embodiments, a valid RO is not allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols or non-SBFD symbols and the configuration of the RO meets a first condition, the RO is the valid RO.

[0772] In some embodiments, the first information does not include a time division duplex (TDD) uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0773] The RO is within an F symbol or the RO is within an SBFD symbol;

[0774] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB;

[0775] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is a positive integer greater than or equal to 0;

[0776] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0777] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0778] The RO is on the SBFD symbol;

[0779] The RO is on a non-SBFD symbol.

[0780] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0781] The RO is within the UL symbol;

[0782] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0783] In some embodiments, the first information is configured with a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following:

[0784] The RO is within a SBFD symbol or the RO is within a non-SBFD symbol;

[0785] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0786] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0787] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, where the DL symbol is a symbol configured as a DL symbol and not configured as an SBFD symbol;

[0788] N is a positive integer greater than or equal to 0;

[0789] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0790] The RO has no overlap with the UL sub-band on the SBFD symbol;

[0791] The RO is on the SBFD symbol;

[0792] The RO is on a non-SBFD symbol.

[0793] In some embodiments, a valid RO is allowed to include SBFD symbols and non-SBFD symbols. If the RO includes SBFD symbols and / or non-SBFD symbols and the configuration of the RO satisfies a second condition, the RO is the valid RO.

[0794] In some embodiments, the first information does not include a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0795] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0796] The RO and the last symbol of the SSB symbol preceding the RO time domain position are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0;

[0797] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0798] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0799] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes:

[0800] The RO is within the UL symbol;

[0801] The UL symbol is a symbol configured as a UL symbol and not configured as a SBFD symbol.

[0802] In some embodiments, the first information includes a TDD uplink and downlink transmission common configuration and a semi-static SBFD configuration, and the second condition includes at least one of the following:

[0803] In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB;

[0804] The RO is separated from the last symbol of the SSB symbol preceding the RO time domain position by at least N symbols in the time domain;

[0805] The RO is spaced at least N symbols from the DL symbol preceding the RO time domain position; N is an integer greater than or equal to 0;

[0806] The RO is spaced at least N symbols from a DL symbol preceding the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as an SBFD symbol;

[0807] The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol;

[0808] The RO has no overlap with the UL sub-band on the SBFD symbol.

[0809] In some embodiments, the method further includes: sending second information.

[0810] In some embodiments, the second information is used to indicate whether a valid RO is allowed to include SBFD symbols and non-SBFD symbols.

[0811] In some embodiments, the RO includes an SBFD symbol, and a frequency domain range of the RO has an overlapping portion with a frequency domain range outside the UL transmission on the SBFD symbol, and the RO is not a valid RO.

[0812] In some embodiments, the time domain position configured by the configuration of the RO includes an SBFD symbol, and the frequency domain range of the RO has no overlapping portion with the frequency domain range of the UL transmission on the SBDF.

[0813] In some embodiments, the RO configured by the configuration of the RO includes SBFD symbols or non-SBFD symbols.

[0814] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0815] FIG4b is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4b, the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102, and the method includes:

[0816] Step S4201: Send the first message.

[0817] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2201 in Figure 2f and other related parts of the embodiment involved in Figure 2f, which will not be repeated here.

[0818] Step S4202: Send the second information.

[0819] In some embodiments, the optional implementation of step S4202 can refer to the optional implementation of step S2202 in Figure 2f and other related parts of the embodiment involved in Figure 2f, which will not be repeated here.

[0820] The information transmission method involved in the embodiments of the present disclosure may include at least one of steps S4201 and S4202. For example, step 4201 may be implemented as an independent embodiment, step S4201 may be implemented as an independent embodiment, and step S4201 combined with step S4202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0821] FIG5 is an interactive diagram illustrating an information transmission method according to an embodiment of the present disclosure. As shown in FIG5 , the present disclosure embodiment relates to an information transmission method for a communication system 100, and the method includes one of the following steps:

[0822] Step S5101: The network device sends first information to the terminal, wherein the first information is used to determine the configuration of the RO associated with the SBFD symbol; wherein the configuration of the RO includes: the time domain position of the RO and / or the frequency domain position of the RO;

[0823] For optional implementation methods of step S5101, please refer to step S2101 of Figure 2a, step S2201 of Figure 2f, step S3101 of Figure 3a, step S3201 of Figure 3b, step S4101 of Figure 4a, step S4201 of Figure 4b and other related parts in the embodiments involved in Figures 2a, 2f, 3a, 3b, 4a and 4b, which will not be repeated here.

[0824] Step S5102: The terminal determines whether the RO is a valid RO according to the configuration of the RO.

[0825] The optional implementation method of step S5102 can be found in step S2103 of Figure 2f, step S2203 of Figure 2f, step S3103 of Figure 3a, step S3203 of Figure 3b and other related parts in the embodiments involved in Figures 2a, 2f, 3a and 3b, which will not be repeated here.

[0826] In some embodiments, the above method may include the methods of the above-mentioned communication system side, terminal side, access network equipment side, core network side, etc., which will not be repeated here.

[0827] The following provides a specific example in combination with any of the above embodiments:

[0828] The specific steps on the terminal side are shown in Figure 6, including:

[0829] Step 6101: Receive first information, the first information including RO configuration information, and determine the time-frequency position of the RO within the configuration period of the RO.

[0830] Step 6102: Determine whether a RO is a valid RO based on the time-frequency position of the RO.

[0831] In some embodiments, one set of RACH resources is configured for non-SBFD aware UE and SBFD aware UE, referred to as the first RACH resource; two sets of RACH resources are configured for non-SBFD aware UE and SBFD aware UE, referred to as the second RACH resource and the third RACH resource.

[0832] In some embodiments, the SBFD aware UE may use or be able to use RO in the second RACH resource.

[0833] In some embodiments, the ROs included in the first RACH resource, the second RACH resource, and the third RACH resource include at least one of the following RO categories:

[0834] The first type of RO: RO that contains only non-SBFD symbols and does not contain SBFD symbols;

[0835] The second type of RO: RO that includes SBFD (legacy F) but does not include SBFD (legacy DL); SBFD (legacy F): TDD-UL-DL-ConfigCommon is configured as F or there is no TDD-UL-DL-ConfigCommon configuration, and the configuration is SBFD symbols; SBFD (legacy DL): TDD-UL-DL-ConfigCommon is configured as DL, and the configuration is SBFD symbols;

[0836] The third type of RO: RO including SBFD (legacy DL).

[0837] In some embodiments, a valid RO must meet at least one of the following conditions:

[0838] Condition 5-0: The RO is within a UL symbol; wherein the UL symbol is configured as UL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol;

[0839] Condition 5-1: In a PRACH slot, the RO does not precede the SSB;

[0840] Condition 5-2: The interval between RO and the symbol containing the previous SSB is at least N symbols;

[0841] Condition 5-3: RO has no time overlap with SSB in non-SBFD symbols;

[0842] Condition 5-4: The RO is separated from the previous DL symbol by at least N symbols; wherein the DL symbol is configured as DL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol;

[0843] Condition 5-5: The RO does not overlap with the UL subband on the SBFD symbol;

[0844] Condition 5-6: The RO does not contain both SBFD and non-SBFD symbols (i.e., a valid RO cannot span SBFD and non-SBFD symbols).

[0845] Condition 5-7: RO is on the SBFD symbol (i.e., valid RO can only be on the SBFD symbol);

[0846] Condition 5-8: The RO is on a non-SBFD symbol (i.e., a valid RO can only be on a non-SBFD symbol).

[0847] 1. The second information indicates / the protocol defaults that a valid RO cannot span SBFD and non-SBFD symbols.

[0848] (Time Division Duplex (TDD) uplink and downlink transmission common configuration) tdd-UL-DL-ConfigurationCommon is not configured, and semi-static SBFD (semi-SBFD) is configured.

[0849] Solution 1-2: A valid RO meets at least one of the following conditions: 1-2-1-1 to 1-2-1-7:

[0850] Condition 1-2-1-1: RO does not precede a SS / PBCH block in the PRACH slot.

[0851] Condition 1-2-1-2: The interval between RO and the last symbol of the previous SSB is at least N symbols;

[0852] Condition 1-2-1-3: RO has no time overlap with SSB in non-SBFD symbols;

[0853] Condition 1-2-1-4: The RO does not overlap with the UL subband on the SBFD symbol;

[0854] Condition 1-2-1-5: RO is in an F symbol or RO is in an SBFD symbol (i.e., a valid RO can be in an SBFD symbol or a non-SBFD symbol);

[0855] Condition 1-2-1-6: The RO is on an SBFD symbol (i.e., a valid RO can only be on an SBFD symbol);

[0856] Condition 1-2-1-7: The RO is on a non-SBFD symbol (i.e., a valid RO can only be on a non-SBFD symbol).

[0857] An example is as follows: in time slot #3 of Figure 2b, OS (OFDM symbol) #0~10 are SBFD, OS #11~13 are F, RO #9, 10, 11 are in SBFD and non-SBFD symbols (UL, DL, F) at the same time, and are judged as invalid RO.

[0858] TDD-UL-DL-ConfigurationCommon has configuration and semi-static SBFD (semi-SBFD) configuration.

[0859] Solution 2-2-1: A valid RO satisfies at least one of conditions 2-2-1-1 and 2-2-1-2:

[0860] Condition 2-2-1-1: RO is within the UL symbol;

[0861] Condition 2-2-1-2: The UL symbol in condition 2-1-1-1 is configured as UL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol.

[0862] Solution 2-2-2: A valid RO satisfies at least one of the following conditions:

[0863] Condition 2-2-2-1: In a PRACH slot, the RO does not precede the SSB;

[0864] Condition 2-2-2-2: The interval between RO and the last symbol of the previous SSB is at least N symbols;

[0865] Condition 2-2-2-3: The interval between the RO symbol and the previous DL symbol is at least N symbols;

[0866] Condition 2-2-2-4: RO has no time overlap with SSB in non-SBFD symbols;

[0867] Condition 2-2-2-5: The RO does not overlap with the UL subband on the SBFD symbol;

[0868] Condition 2-2-2-6: The RO is in an SBFD symbol or the RO is in a non-SBFD symbol (i.e., a valid RO can be in an SBFD symbol or a non-SBFD symbol);

[0869] Condition 2-2-2-7: RO is on the SBFD symbol (i.e., valid RO can only be on the SBFD symbol);

[0870] Condition 2-2-2-8: RO is on a non-SBFD symbol (i.e., a valid RO can only be on a non-SBFD symbol);

[0871] Condition 2-2-2-9: The DL symbol is configured as DL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol.

[0872] An example is as follows: in time slot #3 of Figure 2c, OS#0~10 are SBFD, OS#11~13 are UL, RO#9, 10, 11 are in SBFD and non-SBFD symbols at the same time, and are judged as invalid RO.

[0873] 2. Second Information Indication / Protocol A valid RO can span SBFD and non-SBFD symbols.

[0874] tdd-UL-DL-ConfigurationCommon is not configured, but semi-SBFD is configured.

[0875] Solution 3-2: A valid RO satisfies at least one of the following conditions: 3-2-1-1, 3-2-1-2, 3-2-1-3, and 3-2-1-4:

[0876] Condition 3-2-1-1: RO does not precede a SS / PBCH block in the PRACH slot.

[0877] Condition 3-2-1-2: The interval between RO and the last symbol of the previous SSB is at least N symbols;

[0878] Condition 3-2-1-3: RO has no time overlap with SSB in non-SBFD symbols;

[0879] Condition 3-2-1-4: The RO does not overlap with the UL subband on the SBFD symbol.

[0880] There is tdd-UL-DL-ConfigurationCommon configuration and semi-SBFD configuration.

[0881] Solution 4-2-1: A valid RO satisfies at least one of conditions 4-2-1-1 and 4-2-1-2:

[0882] Condition 4-2-1-1: RO is within the UL symbol;

[0883] Condition 4-2-1-2: The UL symbol in Condition 4-2-1-1 refers to the symbol that remains UL after semi-SBFD configuration.

[0884] Solution 4-2-2: A valid RO satisfies at least one of the following conditions:

[0885] Condition 4-2-2-1: In a PRACH slot, the RO does not precede the SSB;

[0886] Condition 4-2-2-2: There must be at least N symbols between the RO and the last symbol of the previous SSB.

[0887] Condition 4-2-2-3: The interval between the RO symbol and the previous DL symbol is at least N symbols;

[0888] Condition 4-2-2-4: RO has no time overlap with SSB in non-SBFD symbols;

[0889] Condition 4-2-2-5: The RO does not overlap with the UL subband on the SBFD symbol;

[0890] Condition 4-2-2-6: The DL symbol is configured as DL in TDD-UL-DL-ConfigCommon and is not configured as an SBFD symbol.

[0891] In the above solution, N is an integer greater than or equal to 0 and is determined according to the communication protocol.

[0892] In some embodiments, the SBFD aware UE determines a valid RO using any of the schemes in this disclosure.

[0893] In some embodiments, when the second type RO in the first RACH resource and the second type RO in the third RACH resource use the above solution, different conditions may be considered.

[0894] In some embodiments, the conditions considered when the second type RO and the third type RO use the above solution may be different.

[0895] In some embodiments, in the third RACH resource, the first type RO, the second type RO, and the third type RO determine the valid RO using any embodiment of the present disclosure.

[0896] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and the second type of RO and the third type of RO are determined to be valid ROs using any embodiment of the present disclosure.

[0897] In some embodiments, in the third RACH resource, the first type of RO is an invalid RO, and in the second type of RO and / or the third type of RO, the symbol where the RO is located includes at least one non-SBFD symbol. Other ROs are determined to be valid ROs using any embodiment of the present disclosure.

[0898] In some embodiments, a non-SBFD aware UE uses Option 1-1 and Option 1-2 to determine whether the RO is valid:

[0899] Option 1-1: When tdd-UL-DL-ConfigurationCommon is not configured, the valid RO meets at least one of conditions 1-1 and 1-2.

[0900] Condition 1-1: In the first time slot, the RO does not precede the SSB;

[0901] Condition 1-2: The RO is at least N symbols away from the symbol where the previous SSB is located;

[0902] Option 1-2: When tdd-UL-DL-ConfigurationCommon is configured, the valid RO meets condition 2-1 or meets at least one of conditions 2-2, 2-3 and 2-4.

[0903] Condition 2-1: RO is within the UL symbol;

[0904] Condition 2-2: In the first time slot, the RO does not precede the SSB;

[0905] Condition 2-3: The RO symbol is at least N symbols away from the symbol where the previous SSB is located;

[0906] Condition 2-4: The RO symbol is separated from the previous DL symbol by at least N symbols.

[0907] In some embodiments, in the first RACH resource and / or the second RACH resource, the results of the SBFD aware UE and the non-SBFD aware UE determining whether the first type RO and / or the second type RO are valid ROs are the same through network configuration.

[0908] In some embodiments, the UE does not expect an RO to be a valid RO for a non-SBFD aware UE and an invalid RO for a SBFD-aware UE (when there are both non-SBFD aware UEs and SBFD-aware UEs, avoid making the mapping relationship between SSB and valid ROs too complicated), where a non-SBFD aware UE refers to a UE that cannot recognize SBFD symbols, and a SBFD-aware UE refers to a UE that can recognize SBFD symbols.

[0909] a) If the F symbol is configured as SBFD through semi-SBFD, the frequency domain range of some ROs on this SBFD symbol overlaps with the UL frequency domain range. i) As shown in Figures 2b and 2c, RO#8 is an invalid RO for SBFD-aware UEs and a valid RO for non-SBFD aware UEs.

[0910] b) If a valid RO cannot span SBFD and non-SBFD symbols, the F symbol is configured as SBFD through semi-SBFD, and some ROs span SBFD and non-SBFD symbols, and the non-SBFD symbols are F or UL symbols.

[0911] i) As shown in Figure 2b and Figure 2c, RO#9, 10, and 11 are invalid ROs for SBFD-aware UEs and valid ROs for non-SBFD aware UEs.

[0912] In some embodiments, the frequency domain configuration of the RACH in the first RACH resource, the second RACH resource, and / or the third RACH resource is configured with only one starting RB position msg1-FrequencyStart on the SBFD symbol and the non-SBFD symbol. The frequency domain starting position msg1-FrequencyStart may be understood differently in different RO categories:

[0913] Option 1: The starting position of the RACH resource (the frequency domain starting position of the RO with the lowest frequency) relative to the starting position of the UL frequency domain range on the non-SBFD symbol is offset by msg1-FrequencyStart;

[0914] Option 2: The offset value of the starting position of the RACH resource (the frequency domain starting position of the RO with the lowest frequency) relative to the starting position of the UL frequency domain range on the SBFD symbol is msg1-FrequencyStart.

[0915] In some embodiments, the first type RO, the second type RO, and the third type RO use Option 1.

[0916] In some embodiments, the first type RO, the second type RO, and the third type RO use Option 2.

[0917] In some embodiments, the first type of RO uses Option 1, and the second type of RO and the third type of RO use Option 2.

[0918] In some embodiments, the first and second type ROs use Option 1, and the third type RO uses Option 2.

[0919] In some embodiments, in the first RACH resource, the second RACH resource and / or the third RACH resource, the first type RO and the second type RO use Option 1, and the third type RO uses Option 2.

[0920] In some embodiments, in the first RACH resource / the second RACH resource, the first type RO and the second type RO use Option 1, and the third type RO uses Option 2; in the third RACH resource, the first type RO uses Option 1, and the second type RO and the third type RO use Option 2.

[0921] In some embodiments, only the frequency domain configuration of the second type RO and / or the third type RO is configured in the third RACH resource.

[0922] Base station side: The specific method is as described on the terminal side and will not be repeated here.

[0923] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0924] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0925] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0926] Figure 7a is a schematic diagram of the structure of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 7a, the terminal 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module 7101 is used to receive first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: the time domain position of the RO and / or the frequency domain position of the RO. The processing module 7102 is used to determine whether the RO is a valid RO based on the configuration of the RO. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2201, step S2202, but not limited thereto) executed by the terminal 101 in any of the above methods, which will not be repeated here. Optionally, the processing module 7102 is used to execute at least one of the other steps (such as step S2102, step S2103, step S2203) performed by the terminal 101 in any of the above methods, but not limited to these), which will not be repeated here.

[0927] Figure 7b is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 7b, the network device 7200 may include: a transceiver module 7201. In some embodiments, the transceiver module 7201 is used to send first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: the time domain position of the RO and / or the frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2201, step S2202 but not limited thereto) performed by the network device 101 in any of the above methods, which will not be repeated here.

[0928] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0929] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0930] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2201, step S2202, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S2102, step S2103, step S2203, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0931] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0932] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0933] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0934] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0935] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0936] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., but not limited to, steps S2101, S2201, and S2202) of the aforementioned method, such as sending and / or receiving. For example, the interface circuit 8202 performing the communication steps (e.g., but not limited to, steps S2101, S2201, and S2202) of the aforementioned method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., but not limited to, steps S2102, S2103, and S2203).

[0937] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0938] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0939] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A method for transmitting information, wherein: The method comprises: Receive first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; According to the configuration of the RO, it is determined whether the RO is a valid RO.

2. The method according to claim 1, wherein: The valid RO meets at least one of the following conditions: The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as a SBFD symbol; In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB; The valid RO and the last symbol of the symbol where the SSB is located before the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The valid RO is at least N symbols away from a downlink DL symbol before the time domain position of the valid RO, and the DL symbol is configured as a DL symbol and is not configured as a SBFD symbol; The valid RO has no overlap with the UL sub-band on the SBFD symbol; The valid RO does not include SBFD symbols and non-SBFD symbols at the same time; The valid RO is on the SBFD symbol; The valid RO is on non-SBFD symbols.

3. The method according to claim 1, wherein: The first information is used to indicate at least one of the following: A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

4. The method according to claim 3, wherein: The first type of terminal is a terminal that can identify the sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot identify the SBFD time-frequency configuration.

5. The method according to any one of claims 3 to 4, wherein: The RO in the first RACH resource, the second RACH resource and / or the third RACH resource includes at least one of the following categories: A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols; A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbol and does not include the second type of SBFD symbol; A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbol; Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by the time division duplex TDD uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, or are symbols without TDD-UL-DL-ConfigCommon configuration and configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and configured as SBFD symbols.

6. The method according to claim 5, wherein: The conditions for determining the valid ROs in the second type RO and the third type RO are different.

7. The method according to claim 5, wherein: In the third RACH resource, the first type of RO is an invalid RO.

8. The method according to claim 5, wherein: In the third RACH resource, the first type of RO is an invalid RO, and the RO in the second type of RO and / or the third type of RO where the symbol where the RO is located includes at least one non-SBFD symbol is an invalid RO.

9. The method according to claim 1, wherein: The determining, according to the configuration of the RO, whether the RO is a valid RO includes: Whether the RO is a valid RO is determined based at least on whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols, and a configuration of the RO.

10. The method according to claim 9, wherein: The determining whether the RO is a valid RO based at least on whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols and the configuration of the RO comprises: A valid RO is not allowed to include a SBFD symbol and a non-SBFD symbol. If the RO includes a SBFD symbol or a non-SBFD symbol and the configuration of the RO satisfies a first condition, the RO is determined to be the valid RO.

11. The method according to claim 10, wherein: The first information does not include a time division duplex TDD uplink and downlink transmission common configuration TDD-UL-DL-ConfigCommon, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following: The RO is within a flexible F symbol or the RO is within a SBFD symbol; In the physical random access channel PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB; The RO is at least N symbols away from the last symbol of the SSB symbol before the RO time domain position in the time domain. N is an integer greater than or equal to 0; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol; The RO is on a SBFD symbol; The RO is on a non-SBFD symbol.

12. The method according to claim 10 or 11, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the first condition includes at least one of the following: The RO is within an uplink UL symbol; The UL symbol is a symbol that is configured as a UL symbol and is not configured as a SBFD symbol.

13. The method according to any one of claims 10 to 12, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the first condition includes at least one of the following: The RO is within a SBFD symbol or the RO is within a non-SBFD symbol; In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB; The RO is separated from the last symbol of the SSB symbol before the RO time domain position by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The RO is at least N symbols away from a DL symbol before the RO time domain position, and the DL symbol is a symbol configured as a DL symbol and not configured as a SBFD symbol; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol; The RO is on a SBFD symbol; The RO is on a non-SBFD symbol.

14. The method according to any one of claims 2 to 13, wherein: The determining whether the RO is a valid RO based at least on whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols and the configuration of the RO comprises: A valid RO is allowed to include a SBFD symbol and a non-SBFD symbol. If the RO includes a SBFD symbol and / or a non-SBFD symbol and the configuration of the RO satisfies a second condition, the RO is determined to be the valid RO.

15. The method according to claim 14, wherein: The first information does not include TDD uplink and downlink transmission common configuration, and the first information includes semi-static SBFD configuration, and the second condition includes at least one of the following: In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB; The RO is separated from the last symbol of the SSB symbol before the RO time domain position by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol.

16. The method according to claim 14 or 15, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the second condition includes at least one of the following: The RO is within the UL symbol; The UL symbol is a symbol that is configured as a UL symbol and is not configured as a SBFD symbol.

17. The method according to any one of claims 14 to 16, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the second condition includes at least one of the following: In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB; The RO is separated from the last symbol of the SSB symbol before the RO time domain position by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The RO is spaced at least N symbols from a DL symbol before the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as a SBFD symbol; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol.

18. The method according to any one of claims 2 to 17, wherein: The method further comprises at least one of the following: Determining whether to allow a valid RO to contain SBFD symbols and non-SBFD symbols according to the communication protocol; Second information is received, wherein the second information is used to indicate whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols.

19. The method according to any one of claims 1 to 18, wherein: The determining, according to the configuration of the RO, whether the RO is a valid RO includes: The RO includes a SBFD symbol, and a frequency domain range of the RO has an overlapping portion outside a frequency domain range of UL transmission on the SBFD symbol, and it is determined that the RO is not a valid RO.

20. The method according to any one of claims 1 to 19, wherein: The time domain position configured by the configuration of the RO includes a SBFD symbol, and the frequency domain range of the RO has no overlapping part outside the frequency domain range of the UL transmission on the SBFD symbol.

21. The method according to any one of claims 1 to 20, wherein: The RO configured by the configuration of the RO includes a SBFD symbol or a non-SBFD symbol.

22. A method for transmitting information, wherein: The method comprises: Sending first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

23. The method according to claim 22, wherein: The valid RO meets at least one of the following conditions: The valid RO is within an uplink UL symbol, and the UL symbol is configured as a UL symbol and is not configured as a SBFD symbol; In a physical random access channel PRACH time slot, the time domain position of the valid RO is not before the time domain position of the synchronization broadcast block SSB; The valid RO and the last symbol of the symbol where the SSB is located before the time domain position of the valid RO are separated by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The effective RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The valid RO is at least N symbols away from a downlink DL symbol before the valid RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as a SBFD symbol; The valid RO has no overlap with the UL sub-band on the SBFD symbol; The valid RO does not include SBFD symbols and non-SBFD symbols at the same time; The valid RO is on the SBFD symbol; The valid RO is on non-SBFD symbols.

24. The method according to claim 22, wherein: The first information is used to indicate at least one of the following: A first random access channel RACH resource for random access RA of a first type of terminal and a second type of terminal; The second RACH resource is used for RA of the second type of terminals and the third RACH resource is used for RA of the first type of terminals.

25. A solution according to claim 24, wherein: The first type of terminal is a terminal that can identify the sub-band full-duplex SBFD time-frequency configuration; the second type of terminal is a terminal that cannot identify the SBFD time-frequency configuration.

26. The method according to any one of claims 24 to 25, wherein: The ROs in the first RACH resource, the second RACH resource, and the third RACH resource include at least one of the following categories: A first type of RO, wherein the first type of RO is an RO that includes non-SBFD symbols and does not include SBFD symbols; A second type of RO, wherein the second type of RO is an RO that includes the first type of SBFD symbol and does not include the second type of SBFD symbol; A third type of RO, wherein the third type of RO is an RO including the second type of SBFD symbol; Among them, the first type of SBFD symbols are symbols configured as flexible F symbols by TDD-UL-DL-ConfigCommon, or symbols that are not configured with TDD-UL-DL-ConfigCommon and are configured as SBFD symbols; the second type of SBFD symbols are symbols configured as downlink DL symbols by TDD-UL-DL-ConfigCommon and are configured as SBFD symbols.

27. The method according to claim 26, wherein: The conditions for determining the valid ROs in the second type RO and the third type RO are different.

28. The method according to claim 26, wherein: In the third RACH resource, the first type of RO is an invalid RO.

29. The method according to claim 26, wherein: In the third RACH resource, the first type of RO is an invalid RO, and the RO in the second type of RO and / or the third type of RO where the symbol where the RO is located includes at least one non-SBFD symbol is an invalid RO.

30. The method of claim 22, wherein: The configuration of the RO is used to determine whether the RO is a valid RO based on at least whether the valid RO is allowed to contain SBFD symbols and non-SBFD symbols.

31. The method according to claim 30, wherein: A valid RO is not allowed to include a SBFD symbol and a non-SBFD symbol. If the RO includes a SBFD symbol or a non-SBFD symbol and the configuration of the RO satisfies a first condition, the RO is the valid RO.

32. The method according to claim 31, wherein: The first information does not include a time division duplex TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following: The RO is within an F symbol or the RO is within an SBFD symbol; In the PRACH time slot, the time domain position of the RO is not before the time domain position of the synchronization broadcast block SSB; The RO is at least N symbols away from the last symbol of the SSB symbol before the RO time domain position in the time domain. N is a positive integer greater than or equal to 0; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol; The RO is on a SBFD symbol; The RO is on a non-SBFD symbol.

33. The method according to claim 31 or 32, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the first condition includes at least one of the following: The RO is within the UL symbol; The UL symbol is a symbol that is configured as a UL symbol and is not configured as a SBFD symbol.

34. The method according to any one of claims 31 to 33, wherein: The first information is configured with a TDD uplink and downlink transmission common configuration, and the first information includes a semi-static SBFD configuration, and the first condition includes at least one of the following: The RO is within a SBFD symbol or the RO is within a non-SBFD symbol; In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB; The RO is separated from the last symbol of the SSB symbol before the RO time domain position by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The RO is at least N symbols away from a DL symbol before the RO time domain position, and the DL symbol is a symbol configured as a DL symbol and not configured as a SBFD symbol; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol; The RO is on a SBFD symbol; The RO is on a non-SBFD symbol.

35. The method according to any one of claims 30 to 34, wherein: A valid RO is allowed to include a SBFD symbol and a non-SBFD symbol. If the RO includes a SBFD symbol and / or a non-SBFD symbol and a configuration of the RO satisfies a second condition, the RO is the valid RO.

36. The method of claim 35, wherein: The first information does not include TDD uplink and downlink transmission common configuration, and the first information includes semi-static SBFD configuration, and the second condition includes at least one of the following: In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB; The RO is separated from the last symbol of the SSB symbol before the RO time domain position by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol.

37. The method according to claim 35 or 36, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the second condition includes: The RO is within the UL symbol; The UL symbol is a symbol that is configured as a UL symbol and is not configured as a SBFD symbol.

38. A method according to any one of claims 35 to 37, wherein: The first information includes TDD uplink and downlink transmission common configuration and semi-static SBFD configuration, and the second condition includes at least one of the following: In the PRACH time slot, the time domain position of the RO is not before the time domain position of the SSB; The RO is separated from the last symbol of the SSB symbol before the RO time domain position by at least N symbols in the time domain, where N is an integer greater than or equal to 0; The RO is spaced at least N symbols from a DL symbol before the RO time domain position, and the DL symbol is configured as a DL symbol and is not configured as a SBFD symbol; The RO has no overlap with the time domain position of the SSB on the non-SBFD symbol; The RO has no overlap with the UL sub-band outside on the SBFD symbol.

39. The method according to any one of claims 30 to 38, wherein: The method further comprises: Second information is sent, wherein the second information is used to indicate whether a valid RO is allowed to contain SBFD symbols and non-SBFD symbols.

40. The method according to any one of claims 30 to 39, wherein: The RO includes a SBFD symbol, and a frequency domain range of the RO has an overlapping portion outside a frequency domain range of UL transmission on the SBFD symbol, and the RO is not a valid RO.

41. The method according to any one of claims 30 to 40, wherein: The time domain position configured by the configuration of the RO includes a SBFD symbol, and the frequency domain range of the RO has no overlapping part outside the frequency domain range of the UL transmission on the SBDF.

42. The method according to any one of claims 30 to 41, wherein: The RO configured by the configuration of the RO includes a SBFD symbol or a non-SBFD symbol.

43. A method for transmitting information, wherein: The method comprises: The network device sends first information to the terminal, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; The terminal determines whether the RO is a valid RO according to the configuration of the RO.

44. An information transmission device, wherein: The device comprises: A transceiver module is configured to receive first information, wherein the first information is used to determine a configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: a time domain position of the RO and / or a frequency domain position of the RO; The processing module is configured to determine whether the RO is a valid RO according to the configuration of the RO.

45. An information transmission device, wherein: The device comprises: The transceiver module is configured to send first information, wherein the first information is used to determine the configuration of a random access opportunity RO associated with a sub-band full-duplex SBFD symbol; wherein the configuration of the RO includes: the time domain position of the RO and / or the frequency domain position of the RO; wherein the configuration of the RO is used by the terminal to determine whether the RO is a valid RO.

46. ​​A communication system, wherein: The information transmission system includes network equipment and terminals; The terminal is configured to implement the communication method according to any one of claims 1 to 21; The network device is configured to implement the communication method according to any one of claims 22 to 42.

47. A communication device, wherein: The communication device comprises: one or more processors; The processor is used to call instructions so that the communication device executes the communication method according to any one of claims 1 to 21 and claims 22 to 42.

48. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the communication method according to any one of claims 1 to 21 and claims 22 to 42.

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