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

Abstract

Provided in the embodiments of the present disclosure are an information transmission method and apparatus, and a communication device, a communication system and a storage medium. The method comprises: a first-type terminal receiving first information, wherein the first information comprises a configuration of random access channel occasions (ROs), and the configuration of the ROs comprises: time-domain positions of the ROs and / or frequency-domain positions of the ROs; and according to the configuration of the ROs, determining at least one of the following corresponding to a valid RO among the ROs: a synchronization signal / physical broadcast channel block (SSB) index, and a random access preamble set, which can be used on the valid RO, wherein the valid RO comprises a first RO and a second RO, a symbol where the first RO is located is a first subband full duplex (SBFD) symbol, and a symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol, wherein the first-type terminal supports the first RO and the second 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 and claims the priority of PCT patent application No. PCT / CN2023 / 108764, filed on July 21, 2023. The entire contents of the PCT patent application are incorporated herein by reference. Technical Field

[0003] 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

[0004] In mobile communications systems (such as 5G), subcarriers refer to the frequency resources used to transmit data. Subcarriers can be divided into multiple independent subcarrier frequency bands, each with a fixed bandwidth. A time slot divides continuous time domain resources into multiple short time periods, each of which is a time slot. A time slot can be divided into multiple symbols for data transmission, and each symbol can be of fixed duration.

[0005] Summary of the Invention

[0006] As the functionality of terminals increases, their energy consumption increases, resulting in weak battery life.

[0007] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, and a storage medium.

[0008] According to a first aspect of an embodiment of the present disclosure, an information transmission method is proposed in an embodiment of the present disclosure, wherein the method includes: sending first information, wherein the first information includes a configuration of a random access channel occasion (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO, wherein the configuration of the RO is used by a terminal to determine at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, wherein the symbol where the first RO is located is a first subband full duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0009] The first type of terminal supports the first RO and the second RO.

[0010] According to a second aspect of an embodiment of the present disclosure, an information transmission method is provided. The method is performed by a first-category terminal, wherein the method includes: receiving first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO;

[0011] Determine, according to the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0012] The first type of terminal supports the first RO and the second RO.

[0013] According to a third aspect of an embodiment of the present disclosure, an information transmission method is provided, wherein the method includes:

[0014] The network device sends first information to the first type of terminal, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO;

[0015] The first-category terminal determines, based on the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0016] The first type of terminal supports the first RO and the second RO.

[0017] According to a fourth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a network device, wherein the network device includes:

[0018] A transceiver module is configured to send first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO. The configuration of the RO is used by the terminal to determine at least one of the following corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0019] The first type of terminal supports the first RO and the second RO.

[0020] According to a fifth aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a first-category terminal, wherein the first-category terminal includes:

[0021] a transceiver module configured to receive first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO;

[0022] a processing module configured to determine, based on the configuration of the RO, at least one of the following items corresponding to a valid RO among the ROs: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0023] The first type of terminal supports the first RO and the second RO.

[0024] 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:

[0025] A first type of terminal is configured to implement the communication method according to the first aspect;

[0026] The network device is configured to implement the communication method described in the second aspect.

[0027] According to a seventh aspect of an embodiment of the present disclosure, the embodiment of the present disclosure proposes that the communication device includes:

[0028] one or more processors;

[0029] The processor is used to call instructions to enable the communication device to execute the communication method described in any one of the first aspect or the second aspect.

[0030] According to an eighth aspect of the embodiment of the present disclosure, the embodiment of the present disclosure proposes that the storage medium stores instructions, and when the instructions are executed on the communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0031] The mapping between the first RO and the second RO is realized, thereby improving the utilization efficiency of communication resources.

[0032] 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

[0033] 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.

[0034] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0035] FIG1b is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0036] FIG1c is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0037] FIG1d is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0038] FIG1e is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0039] FIG1f is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0040] FIG1g is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0041] FIG1h is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0042] FIG2a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0043] FIG2 b is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0044] FIG2c is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0045] FIG2 d is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0046] FIG2e is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0047] FIG2 f is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0048] FIG2g is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0049] FIG2h is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0050] FIG2i is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0051] FIG2j is a schematic diagram showing symbol configuration according to an exemplary embodiment;

[0052] FIG3a is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0053] FIG3 b is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0054] FIG4 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0055] FIG5 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0056] FIG6 is a schematic flow chart showing an information transmission method according to an exemplary embodiment;

[0057] FIG7a is a schematic structural diagram of a first type of terminal according to an exemplary embodiment;

[0058] FIG7b is a schematic diagram showing the structure of a network device according to an exemplary embodiment;

[0059] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0060] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0061] Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

[0062] In a first aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by a first-category terminal, wherein the method includes:

[0063] receiving first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO;

[0064] Determine, according to the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and a symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0065] The first type of terminal supports the first RO and the second RO.

[0066] In the above embodiment, the first type of terminal performs SSB index mapping on the first RO and the second RO to determine the random access preamble code sets of the first RO and the second RO, and can perform random access on the configured first RO and the second RO, thereby improving resource utilization.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes:

[0068] Determine at least one SSB index corresponding to each of the first ROs in a circular mapping.

[0069] In the above embodiment, the first type of terminal determines the first RO based on the SBFD symbol, and can implement random access based on the SBFD symbol in the configured first RO, thereby improving resource utilization.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes:

[0071] In the cyclic mapping once, each SSB index of N SSB indexes is mapped to m different first ROs;

[0072] The N SSB indexes are not mapped to the second RO;

[0073] Wherein, m is a positive integer, and the N SSB indexes are all SSB indexes configured by the network device.

[0074] In the above embodiment, the first type of terminal maps the SSB index to the first RO based on the SBFD symbol, and the second type of terminal maps the SSB index to the second RO based on the non-SBFD symbol. On the one hand, the processing complexity caused by mapping two ROs for the first type of terminal is reduced. On the other hand, random access based on the SBFD symbol can be implemented in the configured first RO, thereby improving resource utilization.

[0075] In combination with some embodiments of the first aspect, in some embodiments, determining the SSB index corresponding to the valid RO in the RO according to the configuration of the RO includes: determining at least one first SSB index corresponding to each of the first ROs and at least one second SSB index corresponding to each of the second ROs.

[0076] In the above embodiment, the first type of terminal determines a first RO based on SBFD symbols and a second RO based on non-SBFD symbols, thereby improving the utilization efficiency of the RO.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, determining a set of random access preamble codes that can be used on a valid RO includes:

[0078] On each of the second ROs, a first random access preamble set is adopted, wherein the first random access preamble set has no intersection with the second random access preamble set, wherein the second random access preamble set is a random access preamble set adopted by the second type of terminal in each of the second ROs, wherein the second type of terminal does not support the first RO.

[0079] In the above embodiment, the first type of terminal and the second type of terminal use different access preamble code sets for the second RO, so that the network device can identify the type of the accessed terminal and correctly understand the optimal beams for the first type of terminal and the second type of terminal.

[0080] In combination with some embodiments of the first aspect, in some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second type terminal for each second RO.

[0081] In the above embodiment, the first type of terminal and the second type of terminal have the same understanding of the second RO, so that the network device accurately understands the optimal beams of the first type of terminal and the second type of terminal.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, determining at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO includes:

[0083] determining at least one third SSB index used by the second-category terminal for each second RO;

[0084] All the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

[0085] In the above embodiment, the first type of terminal and the second type of terminal have the same understanding of the second RO, so that the network device accurately understands the optimal beams of the first type of terminal and the second type of terminal.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, determining the SSB index corresponding to the valid RO in the RO includes:

[0087] In one association cycle, N SSB indexes are mapped k times in a cycle, where k is a positive integer;

[0088] In one cyclic mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0089] In the above embodiment, the first type of terminal and the second type of terminal are mapped using the same rule to achieve mapping between the first RO and the second RO, thereby realizing effective communication.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, determining the SSB index corresponding to the valid RO in the RO includes: mapping the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0091] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0092] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0093] In the above embodiment, the first type of terminal and the second type of terminal are mapped using the same rules to achieve mapping between the first RO and the second RO, thereby achieving effective communication and reducing processing complexity caused by different mapping rules.

[0094] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0095] The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; the configuration associated with the mapping relationship between the second RO and the SSB index.

[0096] In the above embodiment, the first RO and the second RO are configured using different information, respectively, which improves the flexibility of RO configuration.

[0097] In conjunction with some embodiments of the first aspect, in some embodiments, the first SBFD symbol includes: a symbol in which a carrier component (CC) is configured by a network device as DL through first signaling, and then configured as a SBFD symbol through second signaling;

[0098] The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures CC as SBFD through a second signaling.

[0099] In the above embodiment, the first signaling and the second information perform semi-static configuration on the carrier component, thereby improving configuration flexibility.

[0100] In conjunction with some embodiments of the first aspect, in some embodiments, the first signaling includes: time division duplexing (TDD) uplink and downlink transmission common configuration;

[0101] The second signaling includes: semi-static SBFD configuration.

[0102] In the above embodiment, the TDD uplink and downlink transmission common configuration and the semi-static SBFD configuration perform semi-static configuration on the carrier component, thereby improving configuration flexibility.

[0103] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes physical random access channel (PRACH) configuration information for the first category of terminals; and the method further includes at least one of the following:

[0104] Determine a time domain position of a third RO in the ROs based on the PRACH configuration information;

[0105] The time domain positions of a third RO and a fourth RO in the ROs are determined based on the PRACH configuration information.

[0106] In the above embodiment, the time domain position of the third RO and / or the time domain positions of the third RO and the fourth RO may be determined based on the PRACH configuration information.

[0107] In combination with some embodiments of the first aspect, in some embodiments, determining the time domain position of the third RO in the RO based on the PRACH configuration information includes: determining the time domain position of the third RO based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship;

[0108] And / or, determining the time domain positions of the third RO and the fourth RO in the RO based on the PRACH configuration information includes: determining the time domain positions of the third RO and the fourth RO based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship.

[0109] In the above embodiment, the time domain position of the third RO and / or the time domain positions of the third RO and the fourth RO may be determined based on the PRACH configuration index prach-ConfigurationIndex and the first predetermined mapping relationship.

[0110] In conjunction with some embodiments of the first aspect, in some embodiments, the symbol where the third RO is located includes a third SBFD symbol, the symbol where the fourth RO is located does not include the third SBFD symbol, and the third SBFD symbol is one of the following:

[0111] The network device configures the component carrier CC as a downlink DL symbol through a first signaling and then configures it as a SBFD symbol through a second signaling;

[0112] The network device configures the component carrier CC as a downlink DL symbol or a flexible symbol through a first signaling and then configures it as a SBFD symbol through a second signaling.

[0113] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0114] The first predetermined mapping relationship is determined.

[0115] In the above embodiment, the first predetermined mapping relationship can be clearly determined.

[0116] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship includes one of the following:

[0117] Determining the first predetermined mapping relationship based on the communication protocol rule information;

[0118] Determining the first predetermined mapping relationship based on the high-level configuration information;

[0119] The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.

[0120] In the above embodiment, the first predetermined mapping relationship may be clearly determined in different ways.

[0121] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship includes:

[0122] Determining the first predetermined mapping relationship based on a type of a frequency range FR in which the third RO and / or the fourth RO are located;

[0123] Here, FR is frequency range 1 FR1 or frequency range 2 FR2.

[0124] In the above embodiment, the first predetermined mapping relationship may be explicitly determined based on the type of FR.

[0125] In combination with some embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship based on the type of the frequency range FR in which the third RO and / or the fourth RO are located includes:

[0126] It is determined that the third RO and / or the fourth RO are in FR1, and the first predetermined mapping relationship is one of the following:

[0127] A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1;

[0128] a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1;

[0129] A fourth predetermined mapping relationship is used for configuring random access of the first category of terminals in non-paired spectrum in FR1.

[0130] In the above embodiment, the first predetermined mapping relationship between the third RO and / or the fourth RO in the case of FR1 may be determined.

[0131] In combination with some embodiments of the first aspect, in some embodiments, determining the first predetermined mapping relationship based on the type of the frequency range FR in which the third RO and / or the fourth RO are located includes:

[0132] It is determined that the third RO and / or the fourth RO are in FR2, and the first predetermined mapping relationship is one of the following:

[0133] a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2;

[0134] A sixth predetermined mapping relationship is used for configuring random access of the first category of terminals in non-paired spectrum in FR2.

[0135] In the above embodiment, the second predetermined mapping relationship between the third RO and / or the fourth RO in the case of FR2 may be determined.

[0136] In combination with some embodiments of the first aspect, in some embodiments, the second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.

[0137] In a second aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method includes:

[0138] Sending first information, wherein the first information includes a configuration of a random access channel opportunity (RO), the configuration of the RO including at least one of a time domain position of the RO and a frequency domain position of the RO, wherein the configuration of the RO is used by the terminal to determine at least one of the following corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a random access preamble code set usable on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0139] The first type of terminal supports the first RO and the second RO.

[0140] In the above embodiment, the first type of terminal performs SSB index mapping on the first RO and the second RO to determine the random access preamble code sets of the first RO and the second RO, and can perform random access on the configured first RO and the second RO, thereby improving resource utilization.

[0141] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used for the first type of terminal to determine at least one SSB index corresponding to each of the first ROs in a cyclic mapping.

[0142] In the above embodiment, the first type of terminal determines the first RO based on the SBFD symbol, and can implement random access based on the SBFD symbol in the configured first RO, thereby improving resource utilization.

[0143] In combination with some embodiments of the second aspect, in some embodiments, in one cyclic mapping, each SSB index of the N SSB indexes is mapped to m different first ROs; the N SSB indexes are not mapped to the second RO; wherein m is a positive integer, and the N SSB indexes are all SSB indexes configured for the network device.

[0144] In the above embodiment, the first type of terminal maps the SSB index to the first RO based on the SBFD symbol, and the second type of terminal maps the SSB index to the second RO based on the non-SBFD symbol. On the one hand, the processing complexity caused by mapping two ROs for the first type of terminal is reduced. On the other hand, random access based on the SBFD symbol can be implemented in the configured first RO, thereby improving resource utilization.

[0145] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used to determine at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO.

[0146] In the above embodiment, the first type of terminal determines a first RO based on SBFD symbols and a second RO based on non-SBFD symbols, thereby improving the utilization efficiency of the RO.

[0147] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used for the first type of terminal to adopt a first random access preamble code set on each second RO, wherein the first random access preamble code set has no intersection with the second random access preamble code set, wherein the second random access preamble code set is a random access preamble code set adopted by the second type of terminal in each second RO, wherein the second type of terminal does not support the first RO.

[0148] In the above embodiment, the first type of terminal and the second type of terminal use different access preamble code sets for the second RO, so that the network device can identify the type of the accessed terminal and correctly understand the optimal beams for the first type of terminal and the second type of terminal.

[0149] In combination with some embodiments of the second aspect, in some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second type terminal for each second RO.

[0150] In the above embodiment, the first type of terminal and the second type of terminal have the same understanding of the second RO, so that the network device accurately understands the optimal beams of the first type of terminal and the second type of terminal.

[0151] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used for the first type terminal to determine at least one of the third SSB indexes adopted by the second type terminal for each of the second ROs; and all the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

[0152] In the above embodiment, the first type of terminal and the second type of terminal have the same understanding of the second RO, so that the network device accurately understands the optimal beams of the first type of terminal and the second type of terminal.

[0153] In conjunction with some embodiments of the second aspect, in some embodiments, within an association period, the first-category terminal performs k cyclic mapping on N SSB indexes, where k is a positive integer;

[0154] In one cyclic mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0155] In the above embodiment, the first type of terminal and the second type of terminal are mapped using the same rule to achieve mapping between the first RO and the second RO, thereby realizing effective communication.

[0156] In combination with some embodiments of the second aspect, in some embodiments, the first type of terminal maps the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0157] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0158] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0159] In the above embodiment, the first type of terminal and the second type of terminal are mapped using the same rules to achieve mapping between the first RO and the second RO, thereby achieving effective communication and reducing processing complexity caused by different mapping rules.

[0160] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following:

[0161] Frequency domain resources of the first RO; an index of time domain resources associated with the first RO; a configuration associated with a mapping relationship between the first RO and an SSB index;

[0162] The frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; and the configuration associated with the mapping relationship between the second RO and the SSB index.

[0163] In the above embodiment, the first RO and the second RO are configured using different information, respectively, which improves the flexibility of RO configuration.

[0164] In conjunction with some embodiments of the second aspect, in some embodiments, the first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as DL through first signaling, and then configures it as a SBFD symbol through second signaling;

[0165] The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures CC as SBFD through a second signaling.

[0166] In the above embodiment, the first signaling and the second information perform semi-static configuration on the carrier component, thereby improving configuration flexibility.

[0167] In conjunction with some embodiments of the second aspect, in some embodiments, the first signaling includes: TDD uplink and downlink transmission common configuration;

[0168] The second signaling includes: semi-static SBFD configuration.

[0169] In the above embodiment, the TDD uplink and downlink transmission common configuration and the semi-static SBFD configuration perform semi-static configuration on the carrier component, thereby improving configuration flexibility.

[0170] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used for the second type of terminal to determine at least one SSB index corresponding to each of the second ROs in a cyclic mapping.

[0171] In conjunction with some embodiments of the second aspect, in some embodiments, within an association period, the second-category terminal performs cyclic mapping on N SSB indexes i times, where i is a positive integer;

[0172] In one cyclic mapping, each SSB index of the N SSB indexes is mapped to j different second ROs, where j is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0173] In a third aspect, an embodiment of the present disclosure provides an information transmission method, wherein the method includes:

[0174] The network device sends first information to the first type of terminal, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO;

[0175] The first-category terminal determines, based on the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0176] The first type of terminal supports the first RO and the second RO.

[0177] In a fifth aspect, an embodiment of the present disclosure provides a first-category terminal, wherein the first-category terminal includes:

[0178] a transceiver module configured to receive first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO;

[0179] a processing module configured to determine, based on the configuration of the RO, at least one of the following items corresponding to a valid RO among the ROs: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0180] The first type of terminal supports the first RO and the second RO.

[0181] In conjunction with some embodiments of the fifth aspect, in some embodiments, determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes:

[0182] Determine at least one SSB index corresponding to each of the first ROs in a circular mapping.

[0183] In conjunction with some embodiments of the fifth aspect, in some embodiments, the processing module is specifically configured as follows:

[0184] In the cyclic mapping once, each SSB index of N SSB indexes is mapped to m different first ROs;

[0185] The N SSB indexes are not mapped to the second RO;

[0186] Wherein, m is a positive integer, and the N SSB indexes are all SSB indexes configured by the network device.

[0187] In combination with some embodiments of the fifth aspect, in some embodiments, the processing module is specifically configured to: determine at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO.

[0188] In conjunction with some embodiments of the fifth aspect, in some embodiments, the processing module is specifically configured as follows:

[0189] On each of the second ROs, a first random access preamble set is adopted, wherein the first random access preamble set has no intersection with the second random access preamble set, wherein the second random access preamble set is a random access preamble set adopted by the second type of terminal in each of the second ROs, wherein the second type of terminal does not support the first RO.

[0190] In combination with some embodiments of the fifth aspect, in some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second type terminal for each second RO.

[0191] In conjunction with some embodiments of the fifth aspect, in some embodiments, the processing module is specifically configured as follows:

[0192] determining at least one third SSB index used by the second-category terminal for each second RO;

[0193] All the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

[0194] In conjunction with some embodiments of the fifth aspect, in some embodiments, the processing module is specifically configured as follows:

[0195] In one association cycle, N SSB indexes are mapped k times in a cycle, where k is a positive integer;

[0196] In one cyclic mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0197] In conjunction with some embodiments of the fifth aspect, in some embodiments, the processing module is specifically configured to: map the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0198] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0199] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0200] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes at least one of the following:

[0201] The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; the configuration associated with the mapping relationship between the second RO and the SSB index.

[0202] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as DL through first signaling, and then configures it as a SBFD symbol through second signaling;

[0203] The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures CC as SBFD through a second signaling.

[0204] With reference to some embodiments of the fifth aspect, in some embodiments, the first signaling includes: TDD uplink and downlink transmission common configuration;

[0205] The second signaling includes: semi-static SBFD configuration.

[0206] In a fifth aspect, an embodiment of the present disclosure provides a network device, wherein the network device includes:

[0207] A transceiver module is configured to send first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO. The configuration of the RO is used by the terminal to determine at least one of the following corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol;

[0208] The first type of terminal supports the first RO and the second RO.

[0209] In combination with some embodiments of the fifth aspect, in some embodiments, the configuration of the RO is used for the first type of terminal to determine at least one SSB index corresponding to each of the first ROs in a cyclic mapping.

[0210] In combination with some embodiments of the fifth aspect, in some embodiments, in one cyclic mapping, each SSB index of the N SSB indexes is mapped to m different first ROs; the N SSB indexes are not mapped to the second RO; wherein m is a positive integer, and the N SSB indexes are all SSB indexes configured for the network device.

[0211] In combination with some embodiments of the fifth aspect, in some embodiments, the configuration of the RO is used to determine at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO.

[0212] In combination with some embodiments of the fifth aspect, in some embodiments, the configuration of the RO is used for the first type of terminal to adopt a first random access preamble code set on each second RO, wherein the first random access preamble code set has no intersection with the second random access preamble code set, wherein the second random access preamble code set is the random access preamble code set adopted by the second type of terminal in each second RO, wherein the second type of terminal does not support the first RO.

[0213] In combination with some embodiments of the fifth aspect, in some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second type terminal for each second RO.

[0214] In combination with some embodiments of the fifth aspect, in some embodiments, the configuration of the RO is used for the first type terminal to determine at least one of the third SSB indexes adopted by the second type terminal for each of the second ROs; and all the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

[0215] In conjunction with some embodiments of the fifth aspect, in some embodiments, within an association period, the first-category terminal performs k cyclic mapping on N SSB indexes, where k is a positive integer;

[0216] In one cyclic mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0217] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first type of terminal maps the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0218] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0219] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0220] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes at least one of the following:

[0221] The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; the configuration associated with the mapping relationship between the second RO and the SSB index.

[0222] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as DL through first signaling, and then configures it as a SBFD symbol through second signaling;

[0223] The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures CC as SBFD through a second signaling.

[0224] With reference to some embodiments of the fifth aspect, in some embodiments, the first signaling includes: TDD uplink and downlink transmission common configuration;

[0225] The second signaling includes: semi-static SBFD configuration.

[0226] In combination with some embodiments of the second aspect, in some embodiments, the configuration of the RO is used for the second type of terminal to determine at least one SSB index corresponding to each of the second ROs in a cyclic mapping.

[0227] In conjunction with some embodiments of the second aspect, in some embodiments, within an association period, the second-category terminal performs cyclic mapping on N SSB indexes i times, where i is a positive integer;

[0228] In one cyclic mapping, each SSB index of the N SSB indexes is mapped to j different second ROs, where j is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0229] In a sixth aspect, an embodiment of the present disclosure provides a communication system, wherein the information transmission system includes:

[0230] A first type of terminal is configured to implement the communication method according to the first aspect;

[0231] The network device is configured to implement the communication method described in the second aspect.

[0232] In a seventh aspect, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0233] one or more processors;

[0234] The processor is used to call instructions to enable the communication device to execute the communication method described in any one of the first aspect or the second aspect.

[0235] 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 executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0243] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0244] 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.

[0245] 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.

[0246] 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.

[0247] 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.

[0248] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0249] 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.

[0250] 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.

[0251] 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.

[0252] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0253] 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.

[0254] 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.

[0255] 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.

[0256] 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.

[0257] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0258] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0259] 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.

[0260] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0261] As shown in Figure 1a, the communication system 100 includes a first type of terminal 101 and a network device 102. Optionally, the communication system 100 may further include a second type of terminal.

[0262] In some embodiments, the network device 102 includes at least one of the following: an access network device, a core network device.

[0263] In some embodiments, the first type of 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.

[0264] In some embodiments, the access network device may be, for example, a node or device that accesses a 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.

[0265] 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 Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0266] 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.

[0267] In some embodiments, the core network device includes, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0268] 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.

[0269] 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.

[0270] 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).

[0271] 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), 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. In addition, a symbol can be configured or indicated as an SBFD symbol through other signaling. 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.

[0272] 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.

[0273] In SBFD symbols, the frequency domain range that can be used for UL transmission includes the following two cases:

[0274] 1. GB and DL sub-bands cannot be used for UL transmission, and UL sub-bands can be used for UL transmission.

[0275] 2. DL sub-bands cannot be used for UL transmission, while UL sub-bands and GBs can be used for UL transmission.

[0276] 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.

[0277] 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, and this conflict will cause random access to fail.

[0278] 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) 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.

[0279] A RO is considered valid if it meets certain conditions. Considering that a cell may contain both SBFD-aware UEs and legacy UEs (UEs that cannot recognize SBFD symbol configurations), when SBFD symbols are used to configure ROs, the number of valid ROs available to SBFD-aware UEs and legacy UEs is different.

[0280] The valid RO that can be identified by the SBFD-aware UE is the new valid RO.

[0281] A valid RO that can be recognized by both SBFD-aware UE and legacy UE is a legacy valid RO.

[0282] The symbol where the New valid is located is the first SBFD symbol, and the symbol where the legacy valid RO is located is a non-SBFD symbol or the second SBFD symbol.

[0283] There is a mapping relationship between the SSB and the Valid RO. Based on the time-frequency position of the Valid RO and the preamble sent by the UE, the base station can determine that when the UE and the base station are beam-pairing, the optimal beam on the base station side corresponds to SSB#m (SSB index or sequence number). In the present invention, the subsequent use of "the UE's optimal beam corresponds to SSB#m" means that when the UE and the base station are beam-pairing, the optimal beam on the base station side corresponds to SSB#m.

[0284] For example, as shown in Figure 1d:

[0285] 1. A total of 6 SSBs are mapped to valid ROs.

[0286] 2. Within a PRACH configuration period.

[0287] For SBFD-aware UE, there are 4 new valid ROs (RO#0~#3) and 2 legacy valid ROs (RO#4, #5). When one SSB is mapped to one RO, RO#0~5 correspond to SSB#0~5 respectively.

[0288] For legacy UEs, there are two legacy valid ROs (RO#4, 5). When one SSB is mapped to one RO, RO#4 and 5 correspond to SSB#0 and 1 respectively.

[0289] 3. For SBFD-aware UEs and legacy UEs, RO#4 and 5 are associated with different SSBs. When the SBFD-aware UE and legacy UE simultaneously send preambles in RO#4, the base station cannot determine whether the optimal beam for the SBFD-aware UE is SSB#4 or the optimal beam for the legacy UE is SSB#0.

[0290] The time-frequency position of a valid RO, the number of SSBs, and the mapping relationship between SSBs and valid ROs can be determined according to the parameters configured by RRC.

[0291] 1. The time domain location of the RO is determined by the parameter prach-ConfigurationIndex:

[0292] For example: prach-ConfigurationIndex INTEGER (0..255), according to the index prach-ConfigurationIndex and table 6.3.3.2-2 in 38.211:

[0293] For example, prach-ConfigurationIndex=154.

[0294] PRACH configuration index: 154. Indicates the prach-ConfigurationIndex configured in RRC.

[0295] Preamble format: B4. Indicates that the preamble format B4 is used.

[0296] nf mod x=y: x=2, y=1. This indicates that the physical random access channel configuration period (PRACH configuration period) of the RO is 2 frames (x=2), and the RO is in an odd frame (y=1) among the 2 frames.

[0297] Subframe number: 2, 3, 4, 7, 8, 9. Indicates that the RO is in subframes 2, 3, 4, 7, 8, and 9 in odd-numbered frames.

[0298] Starting Symbol: 0. Indicates that the starting symbol of RO in the subframe is 0.

[0299] Number of PRACH slots within a subframe: 1. Indicates that the number of PRACH slots within a subframe is 1 (the length of a subframe is 1ms, and the corresponding subcarrier spacing (SCS) is 15kHz. In this case, the length of the PRACH slot is 1ms, and the SCS is 15kHz).

[0300] Number of time-domain PRACH occasions within a PRACH slot: 1. Indicates that in the time domain, a PRACH timeslot contains one RO.

[0301] PRACH duration: 12. Indicates that one RO symbol is 12 symbols long.

[0302] 2. The frequency domain where the RO is located is determined by the following parameters:

[0303] msg1-FDM ENUMERATED{one, two, four, eight},

[0304] msg1-FrequencyStart INTEGER(0..maxNrofPhysicalResourceBlocks-1).

[0305] msg1-FDM: indicates the number of ROs in a PRACH time slot in the frequency domain.

[0306] msg1-FrequencyStart: indicates the starting RB in the frequency domain.

[0307] For example, as shown in Figure 1e:

[0308] An RO time-frequency configuration is shown below:

[0309] RO is in subframes #2, 3, 4, 7, 8, 9.

[0310] In the time domain, a PRACH time slot contains one RO. In a subframe, the symbol range of the first RO is OS#0 to OS#11.

[0311] In the frequency domain, one PRACH timeslot contains two ROs.

[0312] After the time-frequency position of the RO is determined, whether the RO is a valid RO is determined according to certain criteria. The method of determining a valid RO is not limited in this embodiment.

[0313] In some embodiments, the index of the Valid RO is determined according to the principle of frequency domain first and then time domain.

[0314] The mapping relationship between SSB and valid RO and the number and index of preambles contained in SSB:

[0315] totalNumberOfRA-PreamblesINTEGER(1..63).

[0316] totalNumberOfRA-Preambles indicates the number N_total of preambles used for random access. If not configured, N_total=64.

[0317] Example 1: When multiple SSBs are associated with a valid RO, the multiple SSBs associated with valid RO#n are distinguished by preamble. Based on the time-frequency position of the valid RO and the preamble sent by the UE, the base station can determine that the optimal beam of the UE corresponds to SSB#m

[0318] ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{four 16}.

[0319] ●Indicates that N=4 SSBs are mapped to 1 valid RO, one SSB includes R=16 preambles, and the starting index of the preamble of the nth SSB in a valid RO is n*N_total / N (ie, n*R).

[0320] An example is shown in Figure 1f:

[0321] ■There are 12 valid ROs in the PRACH configuration period.

[0322] ■There are 20 SSBs in total, and N=4 SSBs are mapped to 1 valid RO.

[0323] ◆SSB#0~3 are mapped to RO#0, SSB#4~7 are mapped to RO#1, and the SSB indexes of other RO mappings can be obtained by analogy.

[0324] ◆An SSB contains R=16 preambles, and the preamble indexes corresponding to the 4 SSBs contained in an RO are {0~15}, {16~31}, {32~47}, and {48~63} respectively.

[0325] ■The horizontal axis (time) in the figure indicates the symbol where the valid RO is located, and does not represent continuous symbols in the time domain.

[0326] ◆As related to Figure 1e.

[0327] The time domain of RO#0-1 is OS#0-11 in time slot #2.

[0328] The time domain of RO#2-3 is OS#0-11 in time slot #3.

[0329] The time domain of RO#4-5 is OS#0-11 in time slot #4.

[0330] Example 2: When an SSB is associated with one or more valid ROs, the UE transmits a PRACH signal in the Valid RO#n associated with the optimal SSB#m. The base station determines that the optimal beam of the UE corresponds to SSB#m based on the time-frequency position of the valid RO.

[0331] ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{onehalf n64}.

[0332] ●Indicates that 1 / 2 SSB is mapped to one valid RO, that is, one SSB is mapped to two valid ROs. One SSB includes 64 preambles, and the preamble index is 0-63.

[0333] An example is shown in Figure 1g:

[0334] ■There are 12 valid ROs in the PRACH configuration period and a total of 16 SSBs. One SSB is mapped to two valid ROs, and one SSB contains R = 64 preambles.

[0335] SSB#0 is mapped to RO#0~1, SSB#2 is mapped to RO#2~3, and the SSB indexes of other RO mappings can be obtained by analogy.

[0336] In the above example, all SSBs may not be mapped to a valid RO included in a PRACH configuration period. , 6 SSBs can be mapped to valid ROs contained in one PRACH configuration period. In this case, 16 SSBs need to be mapped to valid ROs in 3 PRACH configuration periods. Based on this, the protocol defines an association period.

[0337] Association period: The length is N times the PRACH configuration period, where N is the minimum value in the set corresponding to the PRACH configuration period in Table (1) that meets condition 1.

[0338] ●Condition 1: During the association period, Each SSB in the SSBs is mapped to m different valid ROs at least once, where m is a positive integer and can be determined according to ssb-perRACH-OccasionAndCB-PreamblesPerSSB.

[0339] Table (1)

[0340] The number of SSBs is obtained based on ssb-PositionsInBurst in SIB1 or the configuration in ServingCellConfigCommon.

[0341] In a loop mapping, Each of the SSBs is mapped to m different valid ROs once.

[0342] ●After M round-robin mappings in the association period, if the remaining ROs or preambles are insufficient for one round-robin mapping, no SSBs will be mapped to these remaining ROs or preambles.

[0343] Two examples of correlation cycles are as follows:

[0344] ●In Figure 1f, the association period includes one PRACH configuration period. After one cyclic mapping, RO#10 to 11 remain, so no SSB is mapped to RO#10 to 11.

[0345] ●In Figure 1g, the association period includes three PRACH configuration periods. After one cyclic mapping, RO#32 to 35 remain, so no SSB is mapped to RO#32 to 35.

[0346] Association pattern period: includes N association periods, and the duration of the pattern that enables SSB and valid RO mapping does not exceed 160ms, where N is greater than or equal to 1.

[0347] ● Within the duration of 160ms, after an integer multiple of the association period, the remaining valid ROs cannot be cyclically mapped once, then no SSB will be mapped to these remaining valid ROs, and the remaining valid ROs will not be used for PRACH transmission.

[0348] ●Among the N association cycles, different association cycles may have different durations.

[0349] An example is as follows:

[0350] In Figure 1h, the durations of association periods #1, 2, and 3 are 40ms, 50ms, 40ms, and 160ms respectively. The remaining 30ms is insufficient for a round-robin mapping. Therefore:

[0351] N=3, SSB will not be mapped to the valid RO within the last 30ms.

[0352] Therefore, the mapping of SSB and valid RO needs to solve the following problems: When SBFD symbols are configured with RO, the number of valid ROs that can be recognized by SBFD-aware UE and legacy UE is different. How to ensure that under certain SSB-valid RO mapping criteria, the mapping of SSB and valid RO can be achieved, and the base station can correctly identify the optimal beam of SBFD-aware UE and the optimal beam of legacy UE.

[0353] 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:

[0354] Step S2101: The network device sends first information.

[0355] In some embodiments, the network device sends first information to the first type of terminal.

[0356] In some embodiments, the first information includes configuration of the RO.

[0357] In some embodiments, the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO.

[0358] In some embodiments, the first type of terminal is a terminal that can recognize SBFD symbols and non-SBFD symbols.

[0359] In some embodiments, the first category of terminals can use UL SB resources of SBFD symbols for uplink transmission and / or use DL SB resources of SBFD symbols for downlink transmission.

[0360] In some embodiments, in one SBFD symbol, the first type of terminal can use the UL SB resource of the SBFD symbol for uplink transmission or use the DL SB resource of the SBFD symbol for downlink transmission.

[0361] In some embodiments, the first type of terminal uses UL SB resources or DL ​​SB resources on one SBFD symbol.

[0362] In some embodiments, in one SBFD symbol, the first type of terminal can use the UL SB resource of the SBFD symbol for uplink transmission and use the DL SB resource of the SBFD symbol for downlink transmission.

[0363] In some embodiments, the first type of terminal can use UL SB resources and DL SB resources simultaneously in one SBFD symbol.

[0364] In some embodiments, the second type of terminal is a terminal that can recognize non-SBFD symbols but cannot recognize SBFD symbols.

[0365] In some embodiments, the second category of terminals may be able to use DL symbols to receive downlink transmission, or use UL symbols to send uplink transmission, or use F symbols to receive downlink transmission or send uplink transmission.

[0366] In some embodiments, the non-SBFD symbol includes at least one of the following: a UL symbol, a DL symbol, and an F symbol.

[0367] In some embodiments, the first type of terminal determines the configuration of a valid RO in the RO based on a predetermined rule. In this embodiment, the predetermined rule for determining a valid RO is not limited.

[0368] In some embodiments, the configuration index of the RO time domain is used to indicate the RO time domain location.

[0369] In some embodiments, the configuration index may be prach-ConfigurationIndex.

[0370] In some embodiments, the first information also includes at least one of the following: a mapping relationship between RO and SSB index; and the number of preamble codes corresponding to SSB.

[0371] In some embodiments, the mapping relationship between RO and SSB index includes: a mapping relationship between valid RO and SSB index number.

[0372] In some embodiments, the mapping relationship between the valid RO and the SSB index number is used to indicate the SSB index number mapped to the valid RO.

[0373] In some embodiments, the first information may include TDD uplink and downlink transmission common configuration.

[0374] In some embodiments, the TDD uplink and downlink transmission common configuration is used to configure the component carrier CC as a non-SBFD symbol.

[0375] In some embodiments, the non-SBFD symbol includes at least one of the following: a DL symbol; a UL symbol; an F symbol.

[0376] In some embodiments, the TDD-UL-DL-ConfigCommon configuration may indicate a TDD uplink and downlink transmission common configuration.

[0377] In some embodiments, the TDD-UL-DL-ConfigCommon configuration may be a cell-granular configuration.

[0378] In some embodiments, the first information does not include TDD uplink and downlink transmission common configuration.

[0379] 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.

[0380] In some embodiments, the first information may include: semi-static SBFD configuration.

[0381] In some embodiments, the first information includes TDD uplink and downlink transmission common configuration and / or semi-static SBFD configuration.

[0382] 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.

[0383] In some embodiments, the first information does not include TDD uplink and downlink transmission common configuration, and the semi-static SBFD configuration may configure the F symbol as a SBFD symbol.

[0384] In some embodiments, SBFD symbols and non-SBFD symbols may share the same RO configuration.

[0385] In some embodiments, the RO configuration may be applicable to both SBFD symbols and non-SBFD symbols.

[0386] In some embodiments, the RO time domain position (eg, prach-ConfigurationIndex) is applicable to both SBFD symbols and non-SBFD symbols.

[0387] In some embodiments, the RO frequency domain position (eg, msg1-FDM and / or msg1-FrequencyStart) applies to both SBFD symbols and non-SBFD symbols.

[0388] In some embodiments, different RO configurations are used for SBFD symbols and non-SBFD symbols.

[0389] In some embodiments, the valid RO includes a first RO and a second RO.

[0390] In some embodiments, the valid RO includes: at least one first RO and at least one second RO.

[0391] In some embodiments, the symbol where the first RO is located is a first SBFD symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol.

[0392] In some embodiments, the first SBFD symbol is different from the second SBFD symbol.

[0393] In some embodiments, the first SBFD symbol includes: a symbol in which the network device configures the component carrier CC as DL through a first signaling, and then configures the symbol as SBFD through a second signaling.

[0394] In some embodiments, the second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through first signaling, and then configures it as a SBFD symbol through second signaling.

[0395] In some embodiments, the first signaling includes: TDD uplink and downlink transmission common configuration.

[0396] In some embodiments, the second signaling includes: semi-static SBFD configuration.

[0397] In some embodiments, the frequency domain resources of the first RO are different from the frequency domain resources of the second RO.

[0398] In some embodiments, the index of the time domain resource associated with the first RO is different from the index of the time domain resource associated with the second RO.

[0399] In some embodiments, a configuration associated with the mapping relationship between the first RO and the SSB index is different from a configuration associated with the mapping relationship between the second RO and the SSB index.

[0400] In some embodiments, the first category of terminals and the second category of terminals have the same understanding of the frequency domain range of the RO in the F symbol configured as the common configuration for TDD uplink and downlink transmission.

[0401] In some embodiments, the first category of terminals and the second category of terminals have the same understanding of the time domain range of the RO in the F symbol configured as the common configuration for TDD uplink and downlink transmission.

[0402] In some embodiments, the first information includes at least one of the following:

[0403] The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; the configuration associated with the mapping relationship between the second RO and the SSB index.

[0404] In some embodiments, the frequency domain resources of the first RO, the index of the time domain resources associated with the first RO, and / or the configuration associated with the mapping relationship between the first RO and the SSB index are applicable to the first SBFD symbol.

[0405] In some embodiments, the frequency domain resources of the second RO, the index of the time domain resources associated with the second RO, and / or the configuration associated with the mapping relationship between the second RO and the SSB index are applicable to non-SBFD symbols.

[0406] In some embodiments, the frequency domain resources of the second RO, the index of the time domain resources associated with the second RO, and / or the configuration associated with the mapping relationship between the second RO and the SSB index are applicable to the second SBFD symbol.

[0407] In some embodiments, the first information includes: first sub-information and second sub-information.

[0408] The first sub-information includes at least one of the following: frequency domain resources of the first RO; an index of a time domain resource associated with the first RO; and a configuration associated with a mapping relationship between the first RO and an SSB index.

[0409] The second sub-information includes at least one of the following: frequency domain resources of the second RO; an index of a time domain resource associated with the second RO; and a configuration associated with a mapping relationship between the second RO and an SSB index.

[0410] Step S2102: The first type of terminal determines the synchronization signal physical broadcast channel block SSB index corresponding to the valid RO in the RO and / or the random access preamble code set available on the valid RO.

[0411] In some embodiments, the first type of terminal determines, based on the configuration of the RO, a synchronization signal physical broadcast channel block SSB index corresponding to a valid RO in the RO and / or a set of random access preamble codes available on the valid RO.

[0412] In some embodiments, determining a synchronization signal physical broadcast channel block SSB index corresponding to a valid RO in the RO includes mapping the SSB index to the valid RO.

[0413] In some embodiments, for the same second RO, the SSB index mapped to the second type of terminal may be the same as the SSB index mapped to the first type of terminal.

[0414] In some embodiments, for the same second RO, the SSB index mapped to the second type of terminal may be different from the SSB index mapped to the first type of terminal.

[0415] In some embodiments, the SSB index mapped to the first type of terminal may be different from the SSB index mapped to the second type of terminal.

[0416] In some embodiments, the first category terminal does not map the SSB index to the second RO.

[0417] In some embodiments, the second category terminal does not map the SSB index to the first RO.

[0418] In some embodiments, the first category of terminals and the second category of terminals use the same set of random access preambles in the same first RO.

[0419] In some embodiments, the first type of terminals and the second type of terminals use different random access preamble sets in the same first RO.

[0420] In some embodiments, the configuration of the RO is used for the second type of terminal to determine at least one SSB index corresponding to each of the second ROs in a cyclic mapping.

[0421] In some embodiments, within an association period, the second type of terminal performs cyclic mapping on N SSB indexes i times, where i is a positive integer.

[0422] In some embodiments, in one cyclic mapping, each of the N SSB indexes is mapped to j different second ROs, where j is a positive integer; wherein the N SSB indexes are all SSB indexes configured for the network device.

[0423] In some embodiments, within one association cycle of the first type of terminal, N SSB indexes are cyclically mapped k times, where k is a positive integer.

[0424] In some embodiments, in one round-robin mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer.

[0425] In some embodiments, the N SSB indexes are all SSB indexes configured for the network device.

[0426] In some embodiments, one round of mapping includes completing one mapping for each valid RO that needs to be mapped.

[0427] In some embodiments, in one round-robin mapping, each of the N SSB indexes is mapped to m different valid ROs at least once.

[0428] In some embodiments, the effective ROs of different SSB index mappings are the same or different.

[0429] As shown in FIG1g , N is 6, m is 2, and each of the 6 SSB indexes is mapped to 2 valid ROs.

[0430] In this embodiment, the total number of SSB indexes configured by the network device is N or express.

[0431] In some embodiments, the first type of terminal maps the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0432] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0433] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0434] In some embodiments, the time domain position of the first valid RO is located before the time domain position of the second valid RO, the SSB index with a smaller value is mapped to the first valid RO, and the SSB index with a larger value is mapped to the second valid RO.

[0435] In some embodiments, the time domain position of the first valid RO is the same as the time domain position of the second valid RO, and the maximum frequency value of the frequency domain range of the first valid RO is less than or equal to the minimum frequency value of the frequency domain range of the second valid RO. Then, the SSB index is mapped to the first valid RO and the second valid RO in order from small to large.

[0436] In some embodiments, determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes:

[0437] Determine at least one SSB index corresponding to each of the first ROs in a circular mapping.

[0438] In some embodiments, the first type of terminal determines at least one SSB index corresponding to the first RO, and the first type of terminal does not determine an SSB index for the second RO.

[0439] In some embodiments, the first type of terminal maps the SSB to the first RO and does not use the second RO.

[0440] In some embodiments, not using the second RO includes at least one of: not mapping the SSB to the second RO; not monitoring the second RO; and not identifying the second RO.

[0441] In some embodiments, the second type terminal determines at least one SSB index corresponding to the second RO, and the second type terminal does not determine an SSB index for the first RO.

[0442] In some embodiments, the second type of terminal maps the SSB to the second RO and does not use the first RO.

[0443] In some embodiments, not using the first RO includes at least one of: not mapping the SSB to the first RO; not monitoring the first RO; and not identifying the first RO.

[0444] In some embodiments, the first type of terminal maps each SSB index of N SSB indexes to m different first ROs in one round-robin mapping;

[0445] The N SSB indexes are not mapped to the second RO;

[0446] Wherein, m is a positive integer, and the N SSB indexes are all SSB indexes configured by the network device.

[0447] In some embodiments, the first type of terminal and the second type of terminal respectively determine a first association period i and a second association period j, where i is less than or equal to I, which is the total number of first association periods; and j is less than or equal to J, which is the total number of second association periods.

[0448] In some embodiments, during the first association period i, Each of the m SSBs is mapped to m different first ROs at least once.

[0449] In some embodiments, during the second association period j, Each of the SSBs is mapped to m different second ROs at least once.

[0450] In some embodiments, the first category of terminals and the second category of terminals respectively determine a first association pattern period and a second association pattern period.

[0451] In some embodiments, the first correlation pattern period includes at least one first correlation period.

[0452] In some embodiments, the second correlation pattern period includes at least one second correlation period.

[0453] Exemplary: As shown in Figures 2b, 2c and 2d, ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{one n64}, that is, one SSB is mapped to one valid RO. The physical random access channel configuration period (PRACH configuration period) is 10 time slots. Within a PRACH configuration period, there are 8 primary ROs and 4 secondary ROs. The first association period includes 2 PRACH configuration periods, and the SSB index is not mapped to the last 6 primary ROs. The second association period includes 3 PRACH configuration periods, and the SSB index is not mapped to the last 2 secondary ROs.

[0454] In some embodiments, the first type of terminal determines at least one first SSB index corresponding to each of the first ROs and at least one second SSB index corresponding to each of the second ROs.

[0455] In some embodiments, the first type terminal determines at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO, that is, the first type terminal maps the SSB to the first RO and the second RO.

[0456] In some embodiments, the second type terminal determines at least three SSB indexes corresponding to each second RO, and the second type terminal does not determine an SSB index for the first RO.

[0457] In some embodiments, the second type of terminal maps the SSB to the second RO and does not use the first RO.

[0458] In some embodiments, at least one second SSB index corresponding to each second RO determined by the first category terminal is the same as or different from at least one third SSB index corresponding to each second RO determined by the second category terminal.

[0459] In some embodiments, the first type of terminal uses a first random access preamble code set on each of the second ROs, wherein the first random access preamble code set has no intersection with the second random access preamble code set, wherein the second random access preamble code set is the random access preamble code set used by the second type of terminal in each of the second ROs, and wherein the second type of terminal does not support the first RO.

[0460] In some embodiments, the first category of terminals selects a first random access preamble from a first set of random access preambles on the second RO.

[0461] In some embodiments, the second category of terminals selects a second random access preamble from a second set of random access preambles on a second RO.

[0462] In some embodiments, the first set of random access preambles is different from the second set of random access preambles.

[0463] In some embodiments, the first set of random access preambles and the second set of random access preambles have no intersection.

[0464] In some embodiments, the random access preamble code received by the access network device on the second RO is the first random access preamble code, and it is determined that the first type of terminal performs random access on the second RO.

[0465] In some embodiments, the random access preamble code received by the access network device on the second RO is a second random access preamble code, and it is determined that the second type of terminal performs random access on the second RO.

[0466] In some embodiments, the first type of terminal and the second type of terminal respectively determine a first association period i and a second association period j, where i is less than or equal to I, which is the total number of first association periods; and j is less than or equal to J, which is the total number of second association periods.

[0467] In some embodiments, during the first association period i, Each SSB in the SSBs is mapped to m different valid ROs at least once, and the valid RO is the first RO or the second RO.

[0468] In some embodiments, during the second association period j, Each of the SSBs is mapped to m different second ROs at least once.

[0469] In some embodiments, the first category of terminals and the second category of terminals respectively determine a first association pattern period and a second association pattern period.

[0470] In some embodiments, the first correlation pattern period includes at least one first correlation period.

[0471] In some embodiments, the second correlation pattern period includes at least one second correlation period.

[0472] Exemplary: As shown in Figures 2e, 2f and 2g, ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{one n64}, that is, one SSB is mapped to one valid RO. The PRACH configuration period is 10 time slots. In one PRACH configuration period, there are 8 first ROs and 4 second ROs. The specific mapping includes:

[0473] The first association period includes one PRACH configuration period, and the SSB will not be mapped to the last two second ROs;

[0474] The second association period includes 3 PRACH configuration periods, and SSB will not be mapped to the last 2 second ROs.

[0475] When SSB is mapped to the second RO:

[0476] For the first type of terminals, SSB#4, 5 are mapped to RO#4, 5 in time slot #4, and RO#10, 11 in time slot #9 are the remaining ROs after one round of mapping. SSB will not be mapped to RO#10, 11.

[0477] For the second type of terminals, SSB#0,1 is mapped to RO#0,1 in slot #4 in the first PRACH configuration period; SSB#2,3 is mapped to RO#2,3 in slot #9.

[0478] The SSBs mapped to the RO in slot #4 for Category 1 and Category 2 terminals are different. Preambles are used to distinguish Category 1 and Category 2 terminals. For example, the first random access preamble in the first random access preamble set {0-31} is used for Category 1 terminals. The first random access preamble in the second random access preamble set {32-63} is used for Category 2 terminals. This distinguishes the access preambles sent by different categories of terminals.

[0479] In some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second category terminal for each second RO.

[0480] In some embodiments, the first type terminal determines at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO, that is, the first type terminal maps the SSB to the first RO and the second RO.

[0481] In some embodiments, the second type terminal determines at least three SSB indexes corresponding to each second RO, and the second type terminal does not determine an SSB index for the first RO.

[0482] In some embodiments, the second type of terminal maps the SSB to the second RO and does not use the first RO.

[0483] In some embodiments, at least one second SSB index corresponding to each second RO determined by the first category terminal is the same as at least one third SSB index corresponding to each second RO determined by the second category terminal.

[0484] In some embodiments, the first type terminal determines at least one third SSB index used by the second type terminal for each of the second ROs, and maps the second ROs using the third SSB index.

[0485] In some embodiments, the first type of terminal determines at least one of the third SSB indexes adopted by the second type of terminal for each of the second ROs; all of the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured by the network device.

[0486] In some embodiments, the first category terminal determines at least one third SSB index used by each second RO in the same manner as the second category terminal determines the third SSB index.

[0487] In some embodiments, the first type of terminal maps the first SSB index remaining after removing the third SSB index set consisting of all third SSB indexes from the N SSB indexes to the first RO.

[0488] In some embodiments, the first type of terminal maps the second RO using the determined third SSB index.

[0489] In some embodiments, the first type of terminal maps the first SSB index to the first RO using a first method.

[0490] In some embodiments, the second type of terminal maps N SSB indexes to the second RO using the first method.

[0491] Exemplarily, the first category terminal and the second category terminal respectively determine a first association period i and a second association period i, where i is less than or equal to I, which is the total number of first association periods; and j is less than or equal to J, which is the total number of second association periods.

[0492] In the second correlation period j, Each SSB of the m SSBs is mapped to m different second ROs at least once based on the first manner.

[0493] In the first correlation period i, Each SSB in the SSBs is mapped to m different valid ROs at least once, and the valid RO is the first RO or the second RO.

[0494] The first association period is an integer multiple of the SBFD time slot format configuration period.

[0495] The first type of terminal determines a second RO set #1 that needs to be mapped with the SSB in the first association period. In the second association period j, the second terminal maps the SSB set #1 to the second RO set #1.

[0496] The first type of terminal maps the SSB of SSB set #2 to the first RO according to method 1 within the first association period i, and maps the SSB of SSB set #1 to the second RO according to method 1. SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0497] In some embodiments, the first category of terminals and the second category of terminals respectively determine a first association pattern period and a second association pattern period.

[0498] In some embodiments, the first correlation pattern period includes at least one first correlation period.

[0499] In some embodiments, the second correlation pattern period includes at least one second correlation period.

[0500] Exemplary: As shown in Figures 2h, 2i and 2j, ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{one n64}, that is, one SSB is mapped to one valid RO. The PRACH configuration period is 10 time slots. In one PRACH configuration period, there are 8 first ROs and 4 second ROs. The specific mapping includes:

[0501] ●The second association period_1 includes 3 PRACH configuration periods, and SSB will not be mapped to the last 2 second ROs.

[0502] ●The first association period includes one PRACH configuration period, and the SSB will not be mapped to the last two second ROs.

[0503] ■First association period_1.

[0504] ◆Determine the second RO set #1 (the second RO in time slot #4) that needs to be mapped with the SSB in the first association cycle_1. In the second association cycle_1, the SSB set #1 (SSB#0, 1) is mapped to the second RO set #1.

[0505] ◆The SSBs of SSB set #2 (SSB #2, 3, 4, 5, 6, 7, 8, 9) in the first association period_1 are mapped to the first RO according to method 1, and SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0506] ■First association period_2.

[0507] ◆Determine the second RO set #1 (the second RO in time slot #14) that needs to be mapped with the SSB in the first association cycle_2. In the second association cycle_1, the SSB set #1 (SSB #4, 5) is mapped to the second RO set #1.

[0508] ◆The SSBs of SSB set #2 (SSB #0, 1, 2, 3, 6, 7, 8, 9) in the first association period_1 are mapped to the first RO according to method 1, and SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0509] ■First association period_3.

[0510] ◆Determine the second RO set #1 (the second RO in time slot #24) that needs to be mapped with the SSB in the first association cycle_3. In the second association cycle_1, the SSB set #1 (SSB #8, 9) is mapped to the second RO set #1.

[0511] ◆The SSBs of SSB set #2 (SSB #0, 1, 2, 3, 4, 5, 6, 7) in the first association period_1 are mapped to the first RO according to method 1, and SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0512] In some embodiments, if the valid RO includes at least one first RO and does not include the second RO, the second type terminal does not map the SSB index to the first RO.

[0513] In some embodiments, if the valid RO includes at least one second RO and does not include the first RO, the first type of terminal and the second type of terminal use the same mapping rule to map the SSB index to the second RO.

[0514] In some embodiments, the valid RO includes at least one second RO and does not include the first RO. For the same second RO, the SSB index mapped to the second type of terminal may be the same as the SSB index mapped to the first type of terminal.

[0515] In some embodiments, since the second type of terminal does not support SBFD symbols, the second type of terminal does not map the SSB index to the first RO.

[0516] 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".

[0517] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0518] The information transmission method involved in the embodiment of the present disclosure may include at least one of step S2101 to step S2102. For example, step S2101 may be implemented as an independent embodiment, and step S2102 may be implemented as an independent embodiment.

[0519] For example, step S2101 and step S2102 may be implemented as independent embodiments. For example, step S2101 may be implemented as an independent embodiment, and step S2102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0520] In some embodiments, referring to FIG. 2 a again, the steps in FIG. 2 a may further include:

[0521] Step S2103: The first type of terminal determines the time domain position of the third RO and / or the fourth RO in the RO.

[0522] In some embodiments, the first information includes physical random access channel (PRACH) configuration information for the first category of terminals.

[0523] In some embodiments, a time domain position of a third RO in the ROs is determined based on the PRACH configuration information.

[0524] In some embodiments, the time domain positions of the third RO and the fourth RO in the ROs are determined based on the PRACH configuration information.

[0525] In some embodiments, the time domain position of the third RO is determined based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship.

[0526] In some embodiments, the time domain positions of the third RO and the fourth RO are determined based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship.

[0527] In some embodiments, the symbol where the third RO is located includes a third SBFD symbol, the symbol where the fourth RO is located does not include the third SBFD symbol, and the third SBFD symbol is one of the following:

[0528] The network device configures the component carrier CC as a downlink DL symbol through a first signaling and then configures it as a SBFD symbol through a second signaling;

[0529] The network device configures the component carrier CC as a downlink DL symbol or a flexible symbol through a first signaling and then configures it as a SBFD symbol through a second signaling.

[0530] In some embodiments, the first category of terminals determines the first predetermined mapping relationship.

[0531] In some embodiments, determining the first predetermined mapping relationship includes one of the following:

[0532] Determining the first predetermined mapping relationship based on the communication protocol rule information;

[0533] Determining the first predetermined mapping relationship based on the high-level configuration information;

[0534] The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.

[0535] In some embodiments, the first predetermined mapping relationship is determined based on a type of a frequency range FR in which the third RO and / or the fourth RO are located;

[0536] Here, FR is frequency range 1 FR1 or frequency range 2 FR2.

[0537] In some embodiments, it is determined that the third RO and / or the fourth RO are in FR1, and the first predetermined mapping relationship is one of the following:

[0538] A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1;

[0539] a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1;

[0540] A fourth predetermined mapping relationship is used for configuring random access of the first category of terminals in non-paired spectrum in FR1.

[0541] In some embodiments, it is determined that the third RO and / or the fourth RO are in FR2, and the first predetermined mapping relationship is one of the following:

[0542] a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2;

[0543] A sixth predetermined mapping relationship is used for configuring random access of the first category of terminals in non-paired spectrum in FR2.

[0544] In some embodiments, the second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.

[0545] In some embodiments, the second predetermined mapping relationship may be used for first category terminals and / or second category terminals.

[0546] In some embodiments, the third predetermined mapping relationship may be used for first-category terminals and / or second-category terminals.

[0547] In some embodiments, the fifth predetermined mapping relationship may be used for first category terminals and / or second category terminals.

[0548] It should be noted that step S2103 can be implemented independently or in combination with at least one of steps S2101 to S2102. Different steps can be executed in a different order if there is no contradiction, which is not limited here.

[0549] In order to better understand the technical solution of step S2103, some exemplary embodiments are described below:

[0550] In some embodiments, the time domain position of the fifth RO (corresponding to the third RO and / or fourth RO in this disclosure) is determined according to the PRACH configuration index prach-ConfigurationIndex for the SBFD aware UE in the first information and the first predefined table (corresponding to the first predetermined mapping relationship in this disclosure).

[0551] In some embodiments, the fifth RO is the third RO, and / or the fifth RO is the third RO and the fourth RO. The symbol where the third RO is located includes a third SBFD symbol, the symbol where the fourth RO is located does not include the third SBFD symbol, and the third SBFD symbol is one of the following:

[0552] The network device configures the carrier component CC as a downlink DL symbol through the first signaling and then configures it as a SBFD symbol through the second signaling;

[0553] The network device configures the component carrier CC as a downlink DL symbol or a flexible symbol through a first signaling, and then configures it as a SBFD symbol through a second signaling.

[0554] In some embodiments, when the fifth RO is in the frequency domain range 1FR1, the first predefined table is the second predefined table (corresponding to the second predetermined mapping relationship), the third predefined table (corresponding to the third predetermined mapping relationship) or the fourth predefined table (corresponding to the fourth predetermined mapping relationship) in the protocol.

[0555] In some embodiments, the second predefined table is a predefined table for random access configuration of paired spectrum or supplementary uplink in frequency range 1 (FR1 and paired spectrum / supplementary uplink).

[0556] In some embodiments, the third predefined table is a predefined table for random access configuration of unpaired spectrum in frequency range 1 (FR1 and unpaired spectrum).

[0557] In some embodiments, the fourth predefined table is a predefined table newly added in the protocol for random access configuration of non-paired spectrum in frequency domain range 1 for SBFD aware UEs.

[0558] Exemplarily, the second predefined table is Table 6.3.3.2-2 in 3GPP TS 38.211.

[0559] Exemplarily, the third predefined table is Table 6.3.3.2-3 in 3GPP TS 38.211.

[0560] Exemplarily, the fourth predefined table is a random access configuration table for non-paired spectrum in frequency domain range 1 for SBFD aware UEs newly added in 3GPP TS 38.211.

[0561] In some embodiments, the first predefined table is determined to be the second predefined table, the third predefined table, or the fourth predefined table according to protocol default, high-layer configuration, or dynamic indication.

[0562] In some embodiments, when the fifth RO is in the frequency domain range 2FR2, the first predefined table is the fifth predefined table or the sixth predefined table.

[0563] In some embodiments, the fifth predefined table is a predefined table for random access configuration in frequency range 2 and unpaired spectrum.

[0564] In some embodiments, the sixth predefined table is a table newly added in the protocol and predefined for random access configuration of non-paired spectrum in frequency domain range 2 for SBFD aware UEs.

[0565] In some embodiments, the fifth predefined table (corresponding to the fifth predetermined mapping relationship in the present disclosure) is Table 6.3.3.2-4 in 3GPP TS 38.211.

[0566] In some embodiments, the sixth predefined table (corresponding to the sixth predetermined mapping relationship in the present disclosure) is a random access configuration table for non-paired spectrum in frequency domain range 2 for SBFD aware UEs newly added in 3GPP TS 38.211.

[0567] In some embodiments, the first predefined table is determined to be the fifth predefined table or the sixth predefined table according to protocol default, high-layer configuration, or dynamic indication.

[0568] 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 a first type of terminal 101, and the method includes:

[0569] Step S3101: Obtain first information.

[0570] 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.

[0571] 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.

[0572] In some embodiments, the terminal obtains first information specified by the protocol.

[0573] In some embodiments, the terminal obtains the first information from an upper layer(s).

[0574] In some embodiments, the terminal performs processing to obtain the first information.

[0575] 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.

[0576] Step S3102: Determine the SSB index corresponding to the valid RO in the RO and / or the random access preamble code set that can be used on the valid RO.

[0577] 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.

[0578] The information transmission method involved in the embodiment of the present disclosure may include at least one of step S3101 to step S3102. For example, step S3101 may be implemented as an independent embodiment, and step S3102 may be implemented as an independent embodiment.

[0579] In some embodiments, referring to FIG. 3 a again, the steps in FIG. 3 a may further include:

[0580] Step S3103: Determine the time domain position of the third RO and / or the fourth RO in the RO.

[0581] It should be noted that step S3103 can be implemented independently or in combination with at least one of steps S3101 to S3102. Different steps can be executed in a different order if there is no contradiction, which is not limited here.

[0582] 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 a first type of terminal 101, and the method includes:

[0583] Step S3201: The first type of terminal receives first information.

[0584] In some embodiments, the first information includes a configuration of a random access channel occasion (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO.

[0585] In some embodiments, the first type of terminal determines, based on the configuration of the RO, at least one of the following items corresponding to the valid RO in the RO: the synchronization signal physical broadcast channel block SSB index, and the set of random access preamble codes that can be used on the valid RO; wherein, the valid RO includes: the symbol where the first RO is located is the first sub-band full-duplex SBFD symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol.

[0586] In some embodiments, the first type of terminal supports the first RO and the second RO.

[0587] In some embodiments, determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes:

[0588] Determine at least one SSB index corresponding to each of the first ROs in a circular mapping.

[0589] In some embodiments, determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes:

[0590] In the cyclic mapping once, each SSB index of N SSB indexes is mapped to m different first ROs;

[0591] The N SSB indexes are not mapped to the second RO;

[0592] Wherein, m is a positive integer, and the N SSB indexes are all SSB indexes configured by the network device.

[0593] In some embodiments, determining, according to the configuration of the RO, SSB indexes corresponding to valid ROs in the ROs includes: determining at least one first SSB index corresponding to each of the first ROs and at least one second SSB index corresponding to each of the second ROs.

[0594] In some embodiments, determining a set of random access preambles that can be used on a valid RO includes:

[0595] On each of the second ROs, a first random access preamble set is adopted, wherein the first random access preamble set has no intersection with the second random access preamble set, wherein the second random access preamble set is a random access preamble set adopted by the second type of terminal in each of the second ROs, wherein the second type of terminal does not support the first RO.

[0596] In some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second category terminal for each second RO.

[0597] In some embodiments, determining at least one first SSB index corresponding to each first RO and at least one second SSB index corresponding to each second RO includes:

[0598] determining at least one third SSB index used by the second-category terminal for each second RO;

[0599] All the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

[0600] In some embodiments, determining the SSB index corresponding to the valid RO in the RO includes:

[0601] In one association cycle, N SSB indexes are mapped k times in a cycle, where k is a positive integer;

[0602] In one cyclic mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0603] In some embodiments, determining the SSB index corresponding to the valid RO in the RO includes mapping the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0604] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0605] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0606] In some embodiments, the first information includes at least one of the following:

[0607] The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; the configuration associated with the mapping relationship between the second RO and the SSB index.

[0608] In some embodiments, the first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as DL through a first signaling, and then configures it as a SBFD symbol through a second signaling;

[0609] The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures CC as SBFD through a second signaling.

[0610] In some embodiments, the first signaling includes: TDD uplink and downlink transmission common configuration;

[0611] The second signaling includes: semi-static SBFD configuration.

[0612] In some embodiments, the first information includes physical random access channel (PRACH) configuration information for the first category of terminals; and the method further includes at least one of the following:

[0613] Determine a time domain position of a third RO in the ROs based on the PRACH configuration information;

[0614] The time domain positions of a third RO and a fourth RO in the ROs are determined based on the PRACH configuration information.

[0615] In some embodiments, determining the time domain position of the third RO in the RO based on the PRACH configuration information includes: determining the time domain position of the third RO based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship;

[0616] And / or, determining the time domain positions of the third RO and the fourth RO in the RO based on the PRACH configuration information includes: determining the time domain positions of the third RO and the fourth RO based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship.

[0617] In some embodiments, the symbol where the third RO is located includes a third SBFD symbol, the symbol where the fourth RO is located does not include the third SBFD symbol, and the third SBFD symbol is one of the following:

[0618] The network device configures the component carrier CC as a downlink DL symbol through a first signaling and then configures it as a SBFD symbol through a second signaling;

[0619] The network device configures the component carrier CC as a downlink DL symbol or a flexible symbol through a first signaling and then configures it as a SBFD symbol through a second signaling.

[0620] In some embodiments, the method further comprises:

[0621] The first predetermined mapping relationship is determined.

[0622] In some embodiments, determining the first predetermined mapping relationship includes one of the following:

[0623] Determining the first predetermined mapping relationship based on the communication protocol rule information;

[0624] Determining the first predetermined mapping relationship based on the high-level configuration information;

[0625] The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.

[0626] In some embodiments, determining the first predetermined mapping relationship includes:

[0627] Determining the first predetermined mapping relationship based on a type of a frequency range FR in which the third RO and / or the fourth RO are located;

[0628] Here, FR is frequency range 1 FR1 or frequency range 2 FR2.

[0629] In some embodiments, determining the first predetermined mapping relationship based on the type of the frequency range FR in which the third RO and / or the fourth RO are located includes:

[0630] It is determined that the third RO and / or the fourth RO are in FR1, and the first predetermined mapping relationship is one of the following:

[0631] A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access for paired spectrum or supplementary uplink in FR1;

[0632] a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1;

[0633] A fourth predetermined mapping relationship is used for configuring random access of the first category of terminals in non-paired spectrum in FR1.

[0634] In some embodiments, determining the first predetermined mapping relationship based on the type of the frequency range FR in which the third RO and / or the fourth RO are located includes:

[0635] It is determined that the third RO and / or the fourth RO are in FR2, and the first predetermined mapping relationship is one of the following:

[0636] a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2;

[0637] A sixth predetermined mapping relationship is used for configuring random access of the first category of terminals in non-paired spectrum in FR2.

[0638] In some embodiments, the second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.

[0639] FIG4 is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4 , the present disclosure embodiment relates to an information transmission method, which is executed by the network device 102 and includes:

[0640] Step S4101: Send the first message.

[0641] The first information includes the configuration of the random access channel opportunity RO, and the configuration of the RO includes at least one of the time domain position of the RO and the frequency domain position of the RO, wherein the configuration of the RO is used by the terminal to determine at least one of the following items corresponding to the valid RO in the RO: the synchronization signal physical broadcast channel block SSB index, and the random access preamble code set that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol.

[0642] In some embodiments, the first type of terminal supports the first RO and the second RO.

[0643] In some embodiments, the configuration of the RO is used for the first type of terminal to determine at least one SSB index corresponding to each of the first ROs in a cyclic mapping.

[0644] In some embodiments, in one cyclic mapping, each SSB index of N SSB indexes is mapped to m different first ROs; the N SSB indexes are not mapped to the second RO; wherein m is a positive integer, and the N SSB indexes are all SSB indexes configured for the network device.

[0645] In some embodiments, the configuration of the RO is used to determine at least one first SSB index corresponding to each of the first ROs and at least one second SSB index corresponding to each of the second ROs.

[0646] In some embodiments, the configuration of the RO is for the first type of terminal to adopt a first random access preamble code set on each of the second ROs, wherein the first random access preamble code set has no intersection with the second random access preamble code set, wherein the second random access preamble code set is a random access preamble code set adopted by the second type of terminal in each of the second ROs, and wherein the second type of terminal does not support the first RO.

[0647] In some embodiments, at least one second SSB index corresponding to each second RO is the same as at least one third SSB index used by the second category terminal for each second RO.

[0648] In some embodiments, the configuration of the RO is used by the first type terminal to determine at least one of the third SSB indexes adopted by the second type terminal for each of the second ROs; and to form all of the third SSB indexes into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured by the network device.

[0649] In some embodiments, within an association period, the first type of terminal performs k cyclic mapping on N SSB indexes, where k is a positive integer;

[0650] In one cyclic mapping, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0651] In some embodiments, the first type of terminal maps the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following:

[0652] For multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order;

[0653] The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

[0654] In some embodiments, the first information includes at least one of the following:

[0655] The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; the index of the time domain resources associated with the second RO; the configuration associated with the mapping relationship between the second RO and the SSB index.

[0656] In some embodiments, the first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as DL through a first signaling, and then configures it as a SBFD symbol through a second signaling;

[0657] The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures CC as SBFD through a second signaling.

[0658] In some embodiments, the first signaling includes: TDD uplink and downlink transmission common configuration;

[0659] The second signaling includes: semi-static SBFD configuration.

[0660] In some embodiments, the configuration of the RO is used for the second type of terminal to determine at least one SSB index corresponding to each of the second ROs in a cyclic mapping.

[0661] In some embodiments, within an association period, the second-category terminal performs cyclic mapping on N SSB indexes i times, where i is a positive integer;

[0662] In one cyclic mapping, each SSB index of the N SSB indexes is mapped to j different second ROs, where j is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

[0663] 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 of the embodiment involved in Figure 2a, which will not be repeated here.

[0664] 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:

[0665] Step S5101: The network device sends first information to a first type of terminal, wherein the first information includes configuration of the RO, and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO.

[0666] Optional implementations of step S5101 may refer to step S2101 in FIG. 2a , step S3101 in FIG. 3a , step S4101 in FIG. 4 , and other related parts in the embodiments involved in FIG. 2a , FIG. 3a , and FIG. 4 , which will not be described in detail here.

[0667] Step S5102: The first type of terminal determines the SSB index corresponding to the valid RO in the RO and / or the random access preamble code set that can be used on the valid RO according to the configuration of the RO, wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol.

[0668] In some embodiments, the first type of terminal supports the first RO and the second RO.

[0669] Optional implementations of step S5102 may refer to step S2102 in FIG. 2a , step S3102 in FIG. 3a , and other related parts in the embodiments involved in FIG. 2a , FIG. 3a , FIG. 3b , and FIG. 4 , which will not be described in detail here.

[0670] 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.

[0671] The following provides a specific example in combination with any of the above embodiments:

[0672] The terminal-side steps are shown in Figure 6 and include:

[0673] Step 6101: Receive first information, which configures the time-frequency position of RO, the time domain position of SSB, and the mapping relationship between SSB and valid RO.

[0674] ● Solution 1-1: The frequency domain range of the PRACH configuration and the prach-ConfigurationIndex of the PRACH configuration are applicable to SBFD symbols and non-SBFD symbols (existing technology).

[0675] ●Solution 1-2: Differentiated PRACH configuration for SBFD symbols and non-SBFD symbols. The differentiated configuration includes at least one of the following options.

[0676] ■ Option 1: PRACH is configured with frequency domain range #1 and frequency domain range #2 to avoid UL available resource segmentation in non-SBFD symbols.

[0677] ■Option 2: PRACH configures prach-ConfigurationIndex#1 and prach-ConfigurationIndex#2 to increase the flexibility of configuring new valid ROs and legacy valid ROs.

[0678] ■Option 3: PRACH configures the mapping relationship between RO and SSB ssb-perRACH-OccasionAndCB-PreamblesPerSSB#1 and ssb-perRACH-OccasionAndCB-PreamblesPerSSB#2.

[0679] ■In option 1, option 2 and option 3.

[0680] Frequency range #1, prach-ConfigurationIndex #1, ssb-perRACH-OccasionAndCB-PreamblesPerSSB #1 apply to:

[0681] TDD-UL-DL-ConfigCommon is configured as F and is configured as the symbol of SBFD.

[0682] Ensure that legacy UEs and SBFD-aware UEs have the same understanding of the frequency domain range of RO in symbols where TDD-UL-DL-ConfigCommon is configured as F.

[0683] Ensure that legacy UEs and SBFD-aware UEs have the same understanding of the time domain range of RO in symbols where TDD-UL-DL-ConfigCommon is configured as F.

[0684] Non-SBFD symbols.

[0685] Frequency range #2, prach-ConfigurationIndex #2, ssb-perRACH-OccasionAndCB-PreamblesPerSSB #2 apply to:

[0686] TDD-UL-DL-ConfigCommon is configured as DL and is configured as a symbol of SBFD.

[0687] Step 6102: Determine the SSBs associated with the valid RO and the preamble set used by each SSB based on the first information.

[0688] ●Solution 2-1: SBFD-aware UE only maps SSB to new valid RO and does not map SSB to legacy valid RO; legacy UE maps SSB to legacy valid RO.

[0689] ■SBFD-aware UE and legacy UE determine a first association period association period#1_m and a second association period association period#2_n respectively.

[0690] ◆In the first association period association period#1_m, each of the N SSBs is mapped to m new valid ROs at least once.

[0691] ◆In the second association period #2_n, each of the N SSBs is mapped to m legacy valid ROs at least once.

[0692] ■SBFD-aware UE and legacy UE determine a first association pattern period #1 and a second association pattern period #2, respectively.

[0693] ◆The first association pattern period #1 includes M1 first association periods association period #1_m (m=1, . . . , M1).

[0694] ◆The second association pattern period #2 includes N1 second association periods association period #2_n (n=1, . . . , N1).

[0695] An example is as follows: As shown in Figures 2b, 2c and 2d, ssb-perRACH-OccasionAndCB-Preambles PerSSB CHOICE{one n64}, that is, one SSB is mapped to one valid RO. The PRACH configuration period is 10 time slots. Within a PRACH configuration period, there are 8 new valid ROs and 4 legacy valid ROs. The specific mapping includes:

[0696] 1. The first association period, association period#1_1, includes two PRACH configuration periods, and the SSB is not mapped to the last six new valid ROs.

[0697] 2. The second association period, association period #2_1, includes three PRACH configuration periods, and the SSB is not mapped to the last two legacy valid ROs.

[0698] ●Solution 2-2: SBFD-aware UE maps SSB to new valid RO and legacy valid RO, and legacy UE maps SSB to legacy valid RO.

[0699] ■SBFD-aware UE and legacy UE determine a first association period association period#1_m and a second association period association period#2_n respectively.

[0700] ◆In the first association period association period#1_m, each of the N SSBs is mapped to m valid ROs at least once, and the valid RO is either a new valid RO or a legacy valid RO.

[0701] ◆In the second association period #2_n, each of the N SSBs must be mapped to a legacy valid RO at least once.

[0702] ■SBFD-aware UE and legacy UE determine a first association pattern period #1 and a second association pattern period #2, respectively.

[0703] ◆The first association pattern period #1 includes M1 first association periods association period #1_m (m=1, . . . , M1).

[0704] ◆The second association pattern period #2 includes N1 second association periods association period #2_n (n=1, . . . , N1).

[0705] ■The N0 preambles contained in the legacy valid RO are divided into preamble subset #1 and preamble subset #2. The two subsets are used for SBFD-aware UEs and legacy UEs respectively. The preambles contained in the new valid RO do not need to be divided into subsets and are all used for SBFD-aware UEs.

[0706] ◆ Preamble subset #1 contains preambles 0 to N0 / 2-1 or preamble subset #1 contains preambles N0 / 2 to N0.

[0707] An example is as follows: As shown in Figures 2e, 2f and 2g, ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{one n64}, that is, one SSB is mapped to one valid RO. The PRACH configuration period is 10 time slots. In one PRACH configuration period, there are 8 new valid ROs and 4 legacy valid ROs. The specific mapping includes:

[0708] 1. The first association period, association period#1_1, includes one PRACH configuration period, and the SSB is not mapped to the last two legacy valid ROs.

[0709] 2. The second association period, association period #2_1, includes three PRACH configuration periods, and the SSB is not mapped to the last two legacy valid ROs.

[0710] 3.SSB is mapped to legacy valid RO.

[0711] 1) For SBFD-aware UE, SSB#4, 5 are mapped to RO#4, 5 in time slot #4. RO#10, 11 in time slot #9 are the remaining ROs after one round-robin mapping. SSB will not be mapped to RO#10, 11.

[0712] 2) For legacy UEs, SSB#0,1 is mapped to RO#0,1 in slot #4 of the first PRACH configuration period; SSB#2,3 is mapped to RO#2,3 in slot #9.

[0713] 3) SBFD-aware UE and legacy UE, the SSB mapped to the RO in time slot #4 is different. SBFD-aware UE and legacy UE are distinguished by preamble, for example, preambles {0~31} and {32~63} are used for SBFD-aware UE and legacy UE respectively.

[0714] ●Scheme 2-3: SBFD-aware UE maps SSB to new valid RO and legacy valid RO, legacy UE maps SSB to legacy valid RO, and all SSBs constitute SSB set #0.

[0715] ■SBFD-aware UE and legacy UE determine a first association period association period#1_m and a second association period association period#2_n respectively.

[0716] ◆In the second association period #2_n, each of the N SSBs is mapped to m legacy valid ROs at least once.

[0717] Method 1: Map the SSB to the valid RO in the frequency domain first and then in the time domain.

[0718] ◆In the first association period association period#1_m, each of the N SSBs is mapped to m valid ROs at least once, and the valid RO is either a new valid RO or a legacy valid RO.

[0719] The first association period #1_m is an integer multiple of the SBFD timeslot format configuration period.

[0720] The legacy valid RO set #1 that needs to be mapped with the SSB in the first association period #1_m is determined, and in the second association period #2_n, the SSB set #1 is mapped to the legacy valid RO set #1.

[0721] The SSBs of SSB set #2 in the first association period association period #1_m are mapped to the new valid RO according to method 1, and SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0722] ■SBFD-aware UE and legacy UE determine a first association pattern period #1 and a second association pattern period #2, respectively.

[0723] ◆The first association pattern period #1 includes M1 first association periods association period #1_m (m=1, . . . , M1).

[0724] ◆The second association pattern period #2 includes N1 second association periods association period #2_n (n=1, . . . , N1).

[0725] An example is as follows: As shown in Figures 2h, 2i and 2j, ssb-perRACH-OccasionAndCB-PreamblesP erSSB CHOICE{one n64}, that is, one SSB is mapped to one valid RO. The PRACH configuration period (PRACH configuration period) is 10 time slots. Within a PRACH configuration period, there are 8 new valid ROs and 4 legacy valid ROs. The specific mapping includes:

[0726] 1. The second association period, association period #2_1, includes three PRACH configuration periods, and the SSB is not mapped to the last two legacy valid ROs.

[0727] 2. The first association period, association period#1_m, includes one PRACH configuration period, and the SSB is not mapped to the last two legacy valid ROs.

[0728] 1)association period#1_1.

[0729] i. Determine the legacy valid RO set #1 (legacy valid RO in time slot #4) that needs to be mapped with the SSB in association period #1_1. In association period #2_1, SSB set #1 (SSB #0, 1) is mapped to legacy valid RO set #1.

[0730] ii. The SSBs of SSB set #2 (SSB #2, 3, 4, 5, 6, 7, 8, 9) in association period #1_1 are mapped to the new valid RO according to method 1. SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0731] 2)association period#1_2.

[0732] i. Determine the legacy valid RO set #1 (legacy valid RO in time slot #14) that needs to be mapped with the SSB in association period #1_2. In association period #2_1, SSB set #1 (SSB #4, 5) is mapped to legacy valid RO set #1.

[0733] ii. The SSBs of SSB set #2 (SSB #0, 1, 2, 3, 6, 7, 8, 9) in association period #1_1 are mapped to the new valid RO according to method 1. SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0734] 3)association period#1_3.

[0735] i. Determine the legacy valid RO set #1 (legacy valid RO in time slot #24) that needs to be mapped with the SSB in association period #1_3. In association period #2_1, SSB set #1 (SSB #8, 9) is mapped to legacy valid RO set #1.

[0736] ii. The SSBs of SSB set #2 (SSB #0, 1, 2, 3, 4, 5, 6, 7) in association period #1_1 are mapped to the new valid RO according to method 1. SSB set #2 is the complement of SSB set #1 in SSB set #0.

[0737] Base station side: The specific method is as described on the terminal side and will not be repeated here.

[0738] 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.

[0739] 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.

[0740] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, 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, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as 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.

[0741] Figure 7a is a schematic diagram of the structure of the first type of terminal proposed in an embodiment of the present disclosure. As shown in Figure 7a, the first type of 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 configured to receive first information, wherein the first information includes the configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of the time domain position of the RO and the frequency domain position of the RO. The processing module 7102 is a processing module configured to determine, based on the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, wherein the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol; wherein the first type of terminal supports the first RO and the second RO. Optionally, the transceiver module is configured to execute at least one of the communication steps (e.g., step S2101, but not limited thereto) such as sending and / or receiving performed by the first type terminal 101 in any of the above methods, and will not be described in detail here. Optionally, the processing module 7102 is configured to execute at least one of the other steps (e.g., step S2102, but not limited thereto) performed by the first type terminal 101 in any of the above methods, and will not be described in detail here.

[0742] Figure 7b is a schematic diagram of the structure 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 includes the configuration of a random access channel opportunity (RO), and the configuration of the RO includes: the time domain position of the RO and / or the frequency domain position of the RO. The configuration of the RO is used by the terminal to determine at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block (SSB) index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, wherein the symbol where the first RO is located is a first sub-band full-duplex (SBFD) symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol; wherein the first type of terminal supports the first RO and the second RO. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 101 in any of the above methods (for example, step S2101 but not limited thereto), which will not be repeated here.

[0743] 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.

[0744] 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.

[0745] 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.

[0746] 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.

[0747] 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.

[0748] 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.

[0749] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0750] 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.

[0751] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., but not limited to, step S2101) in the above method, such as sending and / or receiving. For example, the interface circuit 8202 performing the communication steps (e.g., sending and / or receiving) in the above method means that the interface circuit 8202 performs data exchange between the processor 8201, chip 8200, memory 8203, or a transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., but not limited to, step S2102).

[0752] 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.

[0753] 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.

[0754] 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 is performed by a first-category terminal, and the method includes: receiving first information, wherein the first information includes a configuration of a random access channel opportunity (RO), and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO; According to the configuration of the RO, determine at least one of the following items corresponding to the valid RO in the RO: a synchronization signal physical broadcast channel block SSB index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, and the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol; The first type of terminal supports the first RO and the second RO.

2. The method according to claim 1, wherein: The determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes: Determine at least one SSB index corresponding to each of the first ROs in a circular mapping.

3. The method according to claim 2, wherein: The determining, according to the configuration of the RO, an SSB index corresponding to a valid RO in the RO includes: In the circular mapping once, each SSB index of the N SSB indexes is mapped to m different first ROs; The N SSB indexes are not mapped to the second RO; Wherein, m is a positive integer, and the N SSB indexes are all SSB indexes configured by the network device.

4. The method according to claim 1, wherein: The determining, according to the configuration of the RO, the SSB index corresponding to the valid RO in the RO includes: determining at least one first SSB index corresponding to each of the first ROs, and at least one second SSB index corresponding to each of the second ROs.

5. The method according to claim 4, wherein: The determining of a random access preamble set available on a valid RO includes: On each of the second ROs, a first random access preamble set is adopted, wherein the first random access preamble set has no intersection with the second random access preamble set, wherein the second random access preamble set is a random access preamble set adopted by the second type of terminal in each of the second ROs, wherein the second type of terminal does not support the first RO.

6. The method according to claim 4, wherein: The at least one second SSB index corresponding to each second RO is the same as the at least one third SSB index used by the second category terminal for each second RO.

7. The method according to claim 6, wherein: The determining at least one first SSB index corresponding to each of the first ROs and at least one second SSB index corresponding to each of the second ROs includes: Determine at least one of the third SSB indexes used by the second-category terminal for each of the second ROs; All the third SSB indexes are grouped into a third SSB index set; the first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

8. According to the method according to any one of claims 1 to 7, the determining the SSB index corresponding to the valid RO in the RO comprises: In one association cycle, N SSB indexes are mapped k times in a cycle, where k is a positive integer; In one of the cyclic mappings, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured for the network device.

9. The method according to any one of claims 1 to 8, wherein: The determining the SSB index corresponding to the valid RO in the RO includes: mapping the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following: For the multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order; The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

10. The method according to any one of claims 1 to 9, wherein: The first information includes at least one of the following: The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; An index of a time domain resource associated with the second RO; and a configuration associated with a mapping relationship between the second RO and an SSB index.

11. The method according to any one of claims 1 to 10, wherein: The first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as a downlink DL symbol through a first signaling, and then configures it as a SBFD symbol through a second signaling; The second SBFD symbol includes: a symbol in which the network device configures the CC as a flexible F or uplink UL through a first signaling, and then configures the CC as a SBFD symbol through a second signaling.

12. The method according to claim 11, wherein The first signaling includes: Time division duplex TDD uplink and downlink transmission common configuration; The second signaling includes: semi-static SBFD configuration.

13. The method according to claim 1, characterized in that The first information includes physical random access channel PRACH configuration information for the first type of terminals; the method further includes at least one of the following: Determine a time domain position of a third RO in the ROs based on the PRACH configuration information; The time domain positions of the third RO and the fourth RO in the ROs are determined based on the PRACH configuration information.

14. The method according to claim 13, characterized in that The determining the time domain position of the third RO in the RO based on the PRACH configuration information includes: determining the time domain position of the third RO based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship; And / or, determining the time domain positions of the third RO and the fourth RO in the RO based on the PRACH configuration information includes: determining the time domain positions of the third RO and the fourth RO based on a PRACH configuration index prach-ConfigurationIndex indicated by the PRACH configuration information and a first predetermined mapping relationship.

15. The method according to claim 13 or 14, characterized in that: The symbol where the third RO is located includes a third SBFD symbol, the symbol where the fourth RO is located does not include a third SBFD symbol, and the third SBFD symbol is one of the following: The network device configures the carrier component CC as a downlink DL symbol through a first signaling and then configures it as a SBFD symbol through a second signaling; The network device configures the component carrier CC as a downlink DL symbol or a flexible symbol through a first signaling and then configures it as a SBFD symbol through a second signaling.

16. The method according to claim 14, characterized in that The method further comprises: The first predetermined mapping relationship is determined.

17. The method according to claim 16, characterized in that The determining the first predetermined mapping relationship includes one of the following: Determining the first predetermined mapping relationship based on the communication protocol rule information; Determining the first predetermined mapping relationship based on the high-level configuration information; The first predetermined mapping relationship is determined based on the indication information dynamically sent by the network device.

18. The method according to claim 16, characterized in that The determining the first predetermined mapping relationship includes: Determine the first predetermined mapping relationship based on the type of the frequency range FR where the third RO and / or the fourth RO are located; Here, FR is the frequency range 1FR1 or the frequency range 2FR2.

19. The method according to claim 18, characterized in that The determining the first predetermined mapping relationship based on the type of the frequency range FR where the third RO and / or the fourth RO are located includes: It is determined that the third RO and / or the fourth RO is in the FR1, and the first predetermined mapping relationship is one of the following: A second predetermined mapping relationship, where the second predetermined mapping relationship is used for configuration of random access of paired spectrum or supplementary uplink in FR1; a third predetermined mapping relationship, where the third predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR1; A fourth predetermined mapping relationship, where the fourth predetermined mapping relationship is used for configuring random access of the non-paired spectrum in FR1 of the first category of terminals.

20. The method according to claim 18, characterized in that The determining the first predetermined mapping relationship based on the type of the frequency range FR where the third RO and / or the fourth RO are located includes: It is determined that the third RO and / or the fourth RO is in FR2, and the first predetermined mapping relationship is one of the following: a fifth predetermined mapping relationship, where the fifth predetermined mapping relationship is used for configuring random access of non-paired spectrum in FR2; A sixth predetermined mapping relationship, where the sixth predetermined mapping relationship is used for configuring random access of the non-paired spectrum in FR2 of the first category of terminals.

21. The method according to claim 19 or 20, characterized in that: The second predetermined mapping relationship, the third predetermined mapping relationship, the fourth predetermined mapping relationship, the fifth predetermined mapping relationship and / or the sixth predetermined mapping relationship are mapping relationships determined according to protocol rule information.

22. A method for transmitting information, wherein: The method comprises: Send first information, wherein the first information includes the configuration of a random access channel opportunity RO, and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO, wherein the configuration of the RO is used by the terminal to determine at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block SSB index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol, and the first type of terminal supports the first RO and the second RO.

23. The method according to claim 22, wherein: The configuration of the RO is used by the first type of terminal to determine at least one SSB index corresponding to each of the first ROs in a cyclic mapping.

24. The method according to claim 23, wherein: In the circular mapping once, each SSB index of the N SSB indexes is mapped to m different first ROs; The N SSB indexes are not mapped to the second RO; wherein m is a positive integer, and the N SSB indexes are all SSB indexes configured for the network device.

25. The method according to claim 23, wherein: The configuration of the RO is used to determine at least one first SSB index corresponding to each of the first ROs and at least one second SSB index corresponding to each of the second ROs.

26. The method according to claim 25, wherein: The configuration of the RO is used for the first type of terminal to adopt a first random access preamble code set on each of the second ROs, wherein the first random access preamble code set has no intersection with the second random access preamble code set, wherein the second random access preamble code set is a random access preamble code set adopted by the second type of terminal in each of the second ROs, and wherein the second type of terminal does not support the first RO.

27. The method according to claim 26, wherein: The at least one second SSB index corresponding to each second RO is the same as the at least one third SSB index used by the second category terminal for each second RO.

28. The method according to claim 27, wherein: The configuration of the RO is used for the first type of terminal to determine at least one of the third SSB indexes used by the second type of terminal for each of the second ROs; and to form all the third SSB indexes into a third SSB index set; The first SSB index is the SSB index remaining after removing the third SSB index set from the N SSB indexes, and the N SSB indexes are all SSB indexes configured for the network device.

29. The method according to any one of claims 22 to 26, wherein: In one association cycle, the first type of terminal performs k cyclic mappings on N SSB indexes, where k is a positive integer; In one of the cyclic mappings, each of the N SSB indexes is mapped to m different valid ROs, where m is a positive integer; wherein the N SSB indexes are all SSB indexes configured for the network device.

30. The method according to any one of claims 22 to 29, wherein: The first type of terminal maps the SSB index to the valid RO based on a first method, wherein the first method includes at least one of the following: For the multiple valid ROs with the same time domain position, the SSB indexes are mapped in ascending order according to the frequency domain positions of the valid ROs, and the SSB indexes are mapped in ascending order; The multiple valid ROs at different time domain positions are mapped to the SSB indexes in order from front to back according to the time domain positions of the valid ROs, and the SSB indexes are mapped in order from small to large.

31. The method according to any one of claims 22 to 30, wherein: The first information includes at least one of the following: The frequency domain resources of the first RO; the index of the time domain resources associated with the first RO; the configuration associated with the mapping relationship between the first RO and the SSB index; the frequency domain resources of the second RO; An index of a time domain resource associated with the second RO; and a configuration associated with a mapping relationship between the second RO and an SSB index.

32. The method according to any one of claims 22 to 31, wherein: The first SBFD symbol includes: a symbol in which the network device configures the carrier component CC as DL through a first signaling, and then configures it as a SBFD symbol through a second signaling; The second SBFD symbol includes: a symbol in which the network device configures CC as F or UL through a first signaling, and then configures it as a SBFD symbol through a second signaling.

33. The method of claim 32, wherein: The first signaling includes: TDD uplink and downlink transmission common configuration; The second signaling includes: semi-static SBFD configuration.

34. The method according to any one of claims 22 to 33, wherein: The configuration of the RO is used by the second type of terminal to determine at least one SSB index corresponding to each of the second ROs in a cyclic mapping.

35. The method of claim 34, wherein: In one association cycle, the second type of terminal performs i-times cyclic mapping on N SSB indexes, where i is a positive integer; In the cyclic mapping once, each SSB index of the N SSB indexes is mapped to j different second ROs, j is a positive integer; wherein the N SSB indexes are all SSB indexes configured by the network device.

36. A method for transmitting information, wherein: The method comprises: The network device sends first information to the first type of terminal, wherein the first information includes a configuration of a random access channel opportunity RO, and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO; The first type of terminal determines, based on the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block SSB index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol, and the first type of terminal supports the first RO and the second RO.

37. A first type terminal, wherein: The first type of terminals include: A transceiver module configured to receive first information, wherein the first information includes a configuration of a random access channel opportunity RO, and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO; A processing module is configured to determine, according to the configuration of the RO, at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block SSB index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol, and the first type of terminal supports the first RO and the second RO.

38. A network device, wherein: The network equipment includes: A transceiver module is configured to send first information, wherein the first information includes a configuration of a random access channel opportunity RO, and the configuration of the RO includes at least one of a time domain position of the RO and a frequency domain position of the RO, wherein the configuration of the RO is used by the terminal to determine at least one of the following items corresponding to a valid RO in the RO: a synchronization signal physical broadcast channel block SSB index, and a set of random access preamble codes that can be used on the valid RO; wherein the valid RO includes: a first RO and a second RO, the symbol where the first RO is located is a first sub-band full-duplex SBFD symbol, the symbol where the second RO is located is a non-SBFD symbol or a second SBFD symbol, and the first type of terminal supports the first RO and the second RO.

39. A communication system, wherein: The information transmission system comprises: A network device, configured to implement the communication method according to any one of claims 1 to 21; The first type of terminal is configured to implement the communication method according to any one of claims 22 to 25.

40. 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 25.

41. 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 25.

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