Method and apparatus in communication node for wireless communication

Abstract

A method and apparatus in a communication node for wireless communication, the communication node receiving a first information block and a second information block, the first information block indicating a symbol type of at least one symbol, the second information block indicating a first RO resource set and a plurality of preamble set lists, each preamble set list in the plurality of preamble set lists comprises at least one preamble set; the communication node sends a first PRACH in a target RO, wherein the target RO belongs to the first RO resource set; wherein a preamble sequence carried by the first PRACH belongs to a first preamble set, and the first preamble set is associated with a first characteristic combination; the plurality of preamble set lists respectively correspond to a plurality of symbol types, and the preamble set list to which the first preamble set belongs is a preamble set list corresponding to the symbol type of at least one symbol included by the target RO in the time domain in the plurality of preamble set lists. The random access performance is improved.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and more particularly to a transmission scheme and device for flexible transmission direction configuration in wireless communication. Background Art

[0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios have different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to study the new radio technology (NR, New Radio) (or 5G), and the WI (Work Item, Work Item) of the new radio technology (NR, New Radio) was passed at the 3GPP RAN #75 plenary meeting, and the standardization work on NR was started. At the 3GPP RAN #86 plenary meeting, it was decided to start the SI (Study Item, Study Item) and WI (Work Item, Work Item) of NR Rel-17, and at the 3GPP RAN #94e plenary meeting, the SI and WI of NR Rel-18 were established. At the 3GPP RAN #102 plenary meeting, it was decided to start the SI and WI of NR Rel-19.

[0003] NR Rel-19 includes WI that supports non-overlapping sub-band full-duplex (SBFD, Subband non-overlapping Full Duplex). Non-overlapping sub-band full-duplex is also one of the technologies potentially supported by 6G. Summary of the invention

[0004] In the existing NR system, spectrum resources are statically divided into FDD spectrum and TDD spectrum. For TDD spectrum, both base stations and user equipment work in half-duplex mode. This half-duplex mode avoids self-interference and can alleviate the impact of cross-link interference, but it also brings about a decrease in resource utilization and an increase in latency. To address these problems, supporting flexible duplex modes on TDD spectrum or FDD spectrum has become a possible solution.

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

[0006] The present application discloses a method for a terminal, characterized by comprising:

[0007] receiving a first information block and a second information block, wherein the first information block indicates a symbol type of at least one symbol, and the second information block indicates a first RO resource set and a plurality of preamble set lists, each preamble set list in the plurality of preamble set lists including at least one preamble set;

[0008] Sending a first PRACH in a target RO, where the target RO belongs to the first RO resource set;

[0009] Among them, the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, and the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is the first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0010] As an embodiment, different preamble set lists are set for multiple symbol types, which is not only suitable for scenarios where the available ranges of random access preambles under different symbol types are inconsistent, but also suitable for scenarios where the feature combinations supported by terminals under different symbol types are inconsistent, thereby improving the random access performance while increasing the flexibility and robustness of the configuration.

[0011] According to one aspect of the present application, the above method is characterized in that the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal, and the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0012] According to one aspect of the present application, the above method is characterized in that the first characteristic combination includes a full-duplex characteristic, the second information block indicates a target threshold for the first characteristic combination, and the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold.

[0013] According to one aspect of the present application, the above method is characterized in that when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a second preamble set, and the second preamble set is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

[0014] According to one aspect of the present application, the above method is characterized in that the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value, the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0015] According to one aspect of the present application, the above method is characterized in that the RO in the first RO resource set located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration and the RO in the first RO resource set located on the non-full-duplex symbol or the flexible full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration are respectively mapped to the synchronized broadcast signal.

[0016] According to one aspect of the present application, the above method is characterized in that when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

[0017] The present application discloses a terminal, characterized in that the terminal comprises: one or more processors and a memory;

[0018] The memory is coupled to the one or more processors, and the memory is used to store computer program codes, wherein the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the terminal to execute the above method.

[0019] The present application discloses a method used in a base station, characterized by comprising:

[0020] Sending a first information block and a second information block, wherein the first information block indicates a symbol type of at least one symbol, and the second information block indicates a first RO resource set and a plurality of preamble set lists, wherein each preamble set list in the plurality of preamble set lists includes at least one preamble set;

[0021] receiving a first PRACH in a target RO, the target RO belonging to the first RO resource set;

[0022] Among them, the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, and the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is the first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0023] According to one aspect of the present application, the above method is characterized in that the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal, and the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0024] According to one aspect of the present application, the above method is characterized in that the first characteristic combination includes a full-duplex characteristic, the second information block indicates a target threshold for the first characteristic combination, and the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold.

[0025] According to one aspect of the present application, the above method is characterized in that when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a second preamble set, and the second preamble set is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

[0026] According to one aspect of the present application, the above method is characterized in that the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value, the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0027] According to one aspect of the present application, the above method is characterized in that the RO in the first RO resource set located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration and the RO in the first RO resource set located on the non-full-duplex symbol or the flexible full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration are respectively mapped to the synchronized broadcast signal.

[0028] According to one aspect of the present application, the above method is characterized in that when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

[0029] The present application discloses a base station, characterized in that the base station comprises: one or more processors and a memory;

[0030] The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the base station to execute the above method.

[0031] As an embodiment, the present application has the following advantages but is not limited to:

[0032] Supports random access in full-duplex scenarios, which can further increase uplink coverage and reduce transmission delay;

[0033] Improving transmission reliability and robustness helps adapt to changing scenarios;

[0034] Reduce resource waste and redundancy and lower network costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0036] Figure 1A flowchart of a first information block, a second information block and a first PRACH according to an embodiment of the present application is shown;

[0037] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0038] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0039] Figure 4 A schematic diagram of a terminal and a base station according to an embodiment of the present application is shown;

[0040] Figure 5 A flow chart showing transmission between a terminal and a base station according to an embodiment of the present application is shown;

[0041] Figure 6 A schematic diagram showing a first preamble set according to an embodiment of the present application is shown;

[0042] Figure 7 A schematic diagram showing a target threshold according to an embodiment of the present application is shown;

[0043] Figure 8 A schematic diagram showing a second preamble set according to an embodiment of the present application is shown;

[0044] Fig. 9 A schematic diagram showing a symbol type of at least one symbol included in a target RO in a time domain according to an embodiment of the present application;

[0045] Fig.10 A schematic diagram showing mapping of a first RO resource set and a synchronous broadcast signal according to an embodiment of the present application is shown;

[0046] Fig.11 A schematic diagram showing the relationship between a first characteristic combination and a full-duplex characteristic according to an embodiment of the present application;

[0047] Fig.12 A structural block diagram of a processing device used in a terminal according to an embodiment of the present application is shown;

[0048] Fig.13 A structural block diagram of a processing device used in a base station according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0049] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0050] Example 1

[0051] Embodiment 1 illustrates a flowchart 100 of a first information block, a second information block and a first PRACH according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the example, each box represents a step. In particular, the order of the steps in the box does not represent a specific time sequence between the steps.

[0052] In embodiment 1, the terminal in the present application receives a first information block and a second information block in step 101, wherein the first information block indicates a symbol type of at least one symbol, and the second information block indicates a first RO resource set and a plurality of preamble set lists, wherein each preamble set list in the plurality of preamble set lists includes at least one preamble set;

[0053] The terminal in the present application sends a first PRACH in a target RO in step 102, and the target RO belongs to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, and the first preamble set is a preamble set included in a preamble set list among the multiple preamble set lists, and the first preamble set is associated with a first characteristic combination, and the first characteristic combination includes at least one characteristic; the multiple preamble set lists correspond to multiple symbol types respectively, and the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0054] As an embodiment, the first information block includes part or all of the fields included in a SIB.

[0055] As an embodiment, the first information block is cell common (Cell Common).

[0056] As an embodiment, the first information block is cell specific.

[0057] As an embodiment, the first information block is group common.

[0058] As an embodiment, the first information block is user equipment specific (UE specific or UEdedicated).

[0059] As an embodiment, the first information block is configured per subband (per subband).

[0060] As an embodiment, the first information block is configured per bandwidth part (BWP, bandwidth Part) (Per BWP).

[0061] As an embodiment, the first information block includes part or all of the fields in IE "SBFDConfigDedicated-r19".

[0062] As an embodiment, the first information block includes part or all of the fields in IE "SBFDConfigCommon-r19".

[0063] As an embodiment, the first information block includes part or all of the fields in IE "SBFDConfig-r19".

[0064] As an embodiment, the first information block includes part or all of the fields in the IE "ServingCellConfigCommon".

[0065] As an embodiment, the first information block includes part or all of the fields in the IE "CellGroupConfig".

[0066] As an embodiment, the first information block includes part or all of the fields in IE "SpCellConfig".

[0067] As an embodiment, the first information block includes part or all of the fields in the IE "SCellConfig".

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

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

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

[0071] As an embodiment, the first information block includes part or all of the fields in IE "TDD-UL-DL-ConfigCommon".

[0072] As an embodiment, the first information block is used to configure SBFD (Subband non-overlapping Full Duplex) time slots or symbols.

[0073] As an embodiment, the first information block is used to configure a time slot or symbol supporting full-duplex.

[0074] As an embodiment, the first information block is used to configure uplink symbols, downlink symbols and flexible symbols.

[0075] As an embodiment, the first information block is used to configure a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, a flexible full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, a non-full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, a flexible non-full-duplex symbol indicated as uplink by the TDD uplink and downlink configuration, and a non-full-duplex symbol indicated as uplink by the TDD uplink and downlink configuration.

[0076] As an embodiment, the first information block configures an uplink subband (UL subband) and a downlink subband (DL subband) of the SBFD.

[0077] As an embodiment, the second information block includes part or all of the fields included in a SIB.

[0078] As an embodiment, the second information block is cell common (Cell Common).

[0079] As an embodiment, the second information block is cell specific.

[0080] As an embodiment, the second information block is group common.

[0081] As an embodiment, the second information block is configured per subband.

[0082] As an embodiment, the second information block is configured per carrier (per carrier).

[0083] As an embodiment, the second information block is configured per bandwidth part (BWP, bandwidth Part) (Per BWP).

[0084] As an embodiment, the second information block includes part or all of the fields in IE "SIB1".

[0085] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfigCommon".

[0086] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfigCommonSIB".

[0087] As an embodiment, the second information block includes part or all of the fields in IE "UplinkConfigCommon".

[0088] As an embodiment, the second information block includes part or all of the fields in the IE "UplinkConfigCommonSIB".

[0089] As an embodiment, the second information block includes part or all of the fields in IE "BWP-UplinkCommon".

[0090] As an embodiment, the second information block includes part or all of the fields in IE "RACH-ConfigCommon".

[0091] As an embodiment, the second information block includes part or all of the fields in IE "RACH-ConfigCommonTwoStepRA".

[0092] As an embodiment, the second information block includes part or all of the fields in IE "RACH-ConfigGeneric".

[0093] As an embodiment, the second information block includes part or all of the fields in IE "RACH-ConfigGenericTwoStepRA".

[0094] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfigCommon-r19".

[0095] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfig-r19".

[0096] As an embodiment, the symbol type of a symbol is a SBFD symbol or a non-SBFD symbol.

[0097] As an embodiment, the symbol type of a symbol is a symbol configured with SBFD or a symbol not configured with SBFD.

[0098] As an embodiment, the symbol type of a symbol is a symbol in a SBFD time slot or a symbol in a non-SBFD time slot.

[0099] As an embodiment, the symbol type of a symbol is a symbol in which a subband of SBFD is configured in the time domain or a symbol in which a subband of SBFD is not configured in the time domain.

[0100] As an embodiment, the symbol type of a symbol is a time domain symbol supporting full duplex or a symbol not supporting full duplex.

[0101] As an embodiment, the symbol type of a symbol is a symbol to which SBFD is applicable or a symbol to which SBFD is not applicable.

[0102] As an embodiment, the symbol type of a symbol is a symbol that can be used for uplink transmission and downlink transmission at the same time or a symbol that cannot be used for uplink transmission and downlink transmission at the same time.

[0103] As an embodiment, the symbol type of a symbol is a downlink SBFD symbol or other types of symbols indicated by “tdd-UL-DL-ConfigCommon”.

[0104] As an embodiment, the symbol type of a symbol is one of a SBFD symbol indicated as a downlink by "tdd-UL-DL-ConfigCommon", a flexible SBFD symbol indicated as a downlink by "tdd-UL-DL-ConfigCommon", an uplink symbol indicated as a "tdd-UL-DL-ConfigCommon", and a flexible non-SBFD symbol indicated as a "tdd-UL-DL-ConfigCommon".

[0105] As an embodiment, the symbol type of a symbol is a SBFD symbol indicated as a downlink by “tdd-UL-DL-ConfigCommon” or an uplink or flexible symbol indicated as a downlink by “tdd-UL-DL-ConfigCommon”;

[0106] As an embodiment, both downlink and flexible symbols are taken into consideration to expand the configuration flexibility.

[0107] As an embodiment, only downlink symbols are considered, which simplifies system design.

[0108] As an embodiment, the full-duplex symbol is a SBFD symbol.

[0109] As an embodiment, the full-duplex symbol is a symbol configured with a SBFD sub-band.

[0110] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: all or part of the cell-specific parameters included in the first information block indicate the symbol type of at least one symbol.

[0111] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: the symbol type of at least one symbol depends on the first information block.

[0112] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: all or part of the first information block is used to explicitly or implicitly indicate the symbol type of at least one symbol.

[0113] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: the time domain symbol indicated (or provided) by the first information block is one type of symbol, and the time domain symbol not indicated (or provided) by the first information block is another type of symbol.

[0114] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: the first information block explicitly or implicitly indicates whether the symbol type of at least one symbol is a full-duplex symbol or a non-full-duplex symbol.

[0115] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: the first information block explicitly or implicitly indicates that the symbol type of at least one symbol is one of a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, a flexible full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, a non-full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, a flexible non-full-duplex symbol indicated as uplink by the TDD uplink and downlink configuration, and a non-full-duplex symbol indicated as uplink by the TDD uplink and downlink configuration.

[0116] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: the first information block explicitly or implicitly indicates whether the symbol type of at least one symbol is the first symbol type or the second symbol type. As a subsidiary embodiment of this embodiment, the first symbol type is indicated by the TDD uplink and downlink configuration as a downlink full-duplex symbol; the second symbol type is indicated by the TDD uplink and downlink configuration as a flexible full-duplex symbol or a non-full-duplex symbol.

[0117] As an embodiment, the technical feature "the first information block indicates the symbol type of at least one symbol" includes: the first information block explicitly or implicitly indicates whether the symbol type of at least one symbol is the first symbol type or the second symbol type. As a subsidiary embodiment of this embodiment, the first symbol type is a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration; the second symbol type is a flexible full-duplex symbol indicated as a TDD uplink and downlink configuration, or is indicated as an uplink or flexible non-full-duplex symbol by the TDD uplink and downlink configuration.

[0118] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: part or all of the second information block is used to explicitly or implicitly indicate the first RO resource set and the multiple leading set lists.

[0119] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the first RO resource set and the multiple preamble set lists depend on the second information block.

[0120] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the second information block is used to determine the first RO resource set and the multiple preamble set lists.

[0121] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: a field included in the second information block indicates the first RO resource set, and another field included in the second information block indicates the multiple leading set lists.

[0122] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: one field included in the second information block indicates the first RO resource set, and the other N fields included in the second information block respectively indicate the multiple leading set lists, wherein N is a positive integer greater than 1, and the number of the multiple leading set lists is N.

[0123] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: the N domains included in the second information block jointly indicate the first RO resource set, and the other N domains included in the second information block respectively indicate the multiple leading set lists, the N is a positive integer greater than 1, and the number of the multiple leading set lists is the N.

[0124] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: the second information block indicates the time-frequency resources included in at least one RO in the first RO resource set.

[0125] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the second information block indicates the number of ROs frequency-divided in the same time domain resources of the first RO resource set.

[0126] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the second information block indicates the starting frequency domain resource of the lowest PRACH opportunity of the first RO resource set in the frequency domain.

[0127] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the second information block indicates a PRACH configuration index (configuration index), and the PRACH configuration index configures the first RO resource set.

[0128] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the second information block indicates two PRACH configuration indexes, and the two PRACH configuration indexes jointly configure the first RO resource set.

[0129] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: the multiple domains included in the second information block respectively indicate the multiple leading set lists, and the multiple domains and the multiple leading set lists are one-to-one corresponding.

[0130] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the number of the multiple preamble set lists is 2, the two fields included in the second information block respectively indicate the multiple preamble list sets, and the multiple preamble list sets correspond to the first symbol type and the second symbol type respectively. As a subsidiary embodiment of this embodiment, the first symbol type is a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration; the second symbol type is a flexible full-duplex symbol or a non-full-duplex symbol indicated as a TDD uplink and downlink configuration.

[0131] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the number of the multiple preamble set lists is 2, the two fields included in the second information block respectively indicate the multiple preamble list sets, and the multiple preamble list sets correspond to the first symbol type and the second symbol type respectively. As a subsidiary embodiment of this embodiment, the first symbol type is a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration; the second symbol type is a flexible full-duplex symbol indicated as a TDD uplink and downlink configuration, or is indicated as an uplink or flexible non-full-duplex symbol by the TDD uplink and downlink configuration.

[0132] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the number of the multiple preamble set lists is 2, the two fields included in the second information block respectively indicate the multiple preamble list sets, and the multiple preamble list sets respectively correspond to full-duplex symbols and non-full-duplex symbols.

[0133] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple leading set lists" includes: the second information block includes multiple sub-information blocks, the multiple sub-information blocks respectively indicate the multiple leading set lists, and the multiple sub-information blocks and the multiple leading set lists are one-to-one corresponding.

[0134] As a subsidiary embodiment of this embodiment, any one of the plurality of sub-information blocks is IE "RACH-ConfigCommon".

[0135] As a subsidiary embodiment of this embodiment, the multiple sub-information blocks include IE "RACH-ConfigCommon" and IE "RACH-ConfigCommon_SBFD".

[0136] As an embodiment, the technical feature "the second information block indicates a first RO resource set and multiple preamble set lists" includes: the number of the multiple preamble set lists is 2, the two sub-information blocks included in the second information block respectively indicate the multiple preamble list sets, and the multiple preamble list sets correspond to the first symbol type and the second symbol type respectively. As a subsidiary embodiment of this embodiment, the first symbol type is a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration; the second symbol type is a flexible full-duplex symbol indicated by the TDD uplink and downlink configuration or an uplink or flexible non-full-duplex symbol indicated by the TDD uplink and downlink configuration. As a subsidiary embodiment of this embodiment, the two sub-information blocks included in the second information block are used to indicate two preamble list sets respectively, which supports the separate configuration of ROs on different symbol types while having maximum configuration flexibility.

[0137] As an embodiment, the first RO resource set includes multiple ROs (Physical Random Access Channel Occasions).

[0138] As an embodiment, any one RO in the first RO resource set is a PRACH (Physical Random Access Channel) opportunity.

[0139] As an embodiment, any one RO in the first RO resource set includes allocated or configured PRACH time-frequency resources.

[0140] As an embodiment, any one RO in the first RO resource set includes time-frequency resources occupied by one PRACH transmission.

[0141] As an embodiment, any two ROs in the first RO resource set are time-division multiplexed.

[0142] As an embodiment, any two ROs in the first RO resource set include the same time domain resources.

[0143] As an embodiment, there are two ROs in the first RO resource set including different time domain resources.

[0144] As an embodiment, there are two frequency division multiplexed (FDM) PRACH opportunities in the first RO resource set.

[0145] As an embodiment, any RO in the first RO resource set occupies only full-duplex symbols in the time domain, or only occupies only non-full-duplex symbols in the time domain.

[0146] As an embodiment, any RO in the first RO resource set occupies either a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration, or occupies a non-full-duplex symbol or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration in the time domain.

[0147] As an embodiment, any RO in the first RO resource set occupies in the time domain either a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, or a flexible full-duplex symbol indicated as a flexible non-full-duplex symbol indicated as uplink by the TDD uplink and downlink configuration, or a non-full-duplex symbol indicated as uplink by the TDD uplink and downlink configuration.

[0148] As an embodiment, some ROs in the first RO resource set occupy both full-duplex symbols and non-full-duplex symbols in the time domain, and the some ROs are configured by the base station.

[0149] As an embodiment, any two ROs in the first RO resource set are for the same preamble format. As a subsidiary embodiment of the above embodiment, the advantage of doing so is that the design is simple.

[0150] As an embodiment, the two ROs in the first RO resource set are for different preamble formats. As a subsidiary embodiment of the above embodiment, the benefit of doing so is to enhance flexibility.

[0151] As an embodiment, the multiple preamble set lists include a list indicated by the field “featureCombinationPreamblesList-r17” and a list indicated by the field “featureCombinationPreamblesList-r19”.

[0152] As an embodiment, the number of the leading set lists included in the multiple leading set lists is N, and N is a positive integer greater than or equal to 1.

[0153] As an embodiment, the number of the leading set lists included in the multiple leading set lists is N, and N is equal to 2.

[0154] As an embodiment, any one of the plurality of leading set lists includes a plurality of leading sets.

[0155] As an embodiment, any one of the plurality of preamble set lists is a feature combination preamble list.

[0156] As an embodiment, the number of leader sets included in any two of the plurality of leader set lists is the same.

[0157] As an embodiment, the number of multiple preamble sets included in two of the multiple preamble set lists is different.

[0158] As an embodiment, the maximum number of preamble sets included in the preamble set list is N, and N is determined by the field "maxFeatureCombPreamblesPerRACHResource".

[0159] As an embodiment, the number of leading sets included in the leading set list is no greater than 32.

[0160] As an embodiment, the number of leading sets included in the leading set list is no more than 16.

[0161] As an embodiment, the leading set list includes multiple leading sets.

[0162] As an embodiment, the leading set list includes leading sets for different characteristic combinations.

[0163] As an embodiment, the leading set list includes a leading set that is not for any characteristic combination.

[0164] As an embodiment, the leading set list configures or specifies a series of leading sets for different feature combinations.

[0165] As an embodiment, any leading set in the leading set list is associated with a feature combination information.

[0166] As an embodiment, the plurality of leading sets included in the leading set list are related to a plurality of different characteristic combinations.

[0167] As an embodiment, the plurality of leading sets included in the leading set list and the plurality of different characteristic combinations are in one-to-one correspondence.

[0168] As an embodiment, any two leading sets included in the leading set list are different.

[0169] As an embodiment, any preamble set in the preamble set list includes multiple consecutive preambles associated with one synchronized broadcast signal.

[0170] As an embodiment, any one of the preamble sets in the preamble set list includes a starting preamble of a plurality of consecutive preambles associated with a synchronized broadcast signal.

[0171] As an embodiment, the preamble set includes multiple random access preambles.

[0172] As an embodiment, the preamble set includes multiple consecutive random access preambles.

[0173] As an embodiment, the preamble set includes multiple consecutive random access preambles associated with one synchronized broadcast signal.

[0174] As an embodiment, the number of random access preambles included in the preamble set is a positive integer.

[0175] As an embodiment, the number of random access preambles included in the preamble set is related to the symbol type.

[0176] As an embodiment, any random access preamble in the preamble set is generated by a random access preamble sequence.

[0177] As an embodiment, any random access preamble in the preamble set is used to carry a Msg1 (Message 1) message.

[0178] As an embodiment, the leading set is associated with a characteristic combination.

[0179] As an embodiment, the leading set is not associated with any characteristics.

[0180] As an embodiment, the leading set belongs to a leading set list among the multiple leading set lists.

[0181] As an embodiment, the technical feature "each of the plurality of leading set lists includes at least one leading set" includes: each of the plurality of leading set lists includes a plurality of leading sets.

[0182] As an embodiment, the technical feature "each of the multiple leading set lists includes at least one leading set" includes: the number of leading sets included in each of the multiple leading set lists is a positive integer greater than 1.

[0183] As an embodiment, the technical feature “each of the plurality of leading set lists includes at least one leading set” includes: there is no identical leading set in any two of the plurality of leading set lists.

[0184] As an embodiment, the technical feature “each of the plurality of leading set lists includes at least one leading set” includes: the same leading set may exist in two leading set lists in the plurality of leading set lists.

[0185] As an embodiment, the technical feature "each of the multiple leading set lists includes at least one leading set" includes: the leading sets corresponding to the same feature combination in two leading set lists in the multiple leading set lists are different.

[0186] As an embodiment, the technical feature "each of the multiple leading set lists includes at least one leading set" includes: the leading sets corresponding to different feature combinations in any two of the multiple leading set lists are the same.

[0187] As an embodiment, the first PRACH is transmitted via an air interface or a wireless interface.

[0188] As an embodiment, the first PRACH is a baseband signal or a radio frequency signal.

[0189] As an embodiment, the first PRACH is Msg1.

[0190] As an embodiment, the first PRACH is a PRACH (physical random access channel) or is used to transmit a PRACH.

[0191] As an embodiment, the first PRACH is generated by a random access preamble sequence.

[0192] As an embodiment, the first PRACH is generated by a pseudo-random sequence.

[0193] As an embodiment, the first PRACH is generated by a ZC (Zaddoff Chu) sequence.

[0194] As an embodiment, the first PRACH includes or carries a random access preamble or a random access preamble code.

[0195] As an embodiment, the first PRACH includes or carries a random access preamble sequence.

[0196] As an embodiment, the first PRACH is used for initial random access.

[0197] As an embodiment, the technical feature of "sending a first PRACH in a target RO" includes: the target RO is used to send (or is used to transmit) the first PRACH.

[0198] As an embodiment, the technical feature of "sending the first PRACH in the target RO" includes: the target RO carries information of the first PRACH.

[0199] As an embodiment, the technical feature of "sending a first PRACH in a target RO" includes: the first PRACH maps (or occupies) the time-frequency resources of the target RO.

[0200] As an embodiment, the technical feature of "sending a first PRACH in a target RO" includes: the first PRACH overlaps with time domain resources occupied by the target RO in the time domain.

[0201] As an embodiment, the technical feature "the target RO belongs to the first RO resource set" includes: the first RO resource set includes the target RO.

[0202] As an embodiment, the technical feature "the target RO belongs to the first RO resource set" includes: the target RO is an RO included in the first RO resource set.

[0203] As an embodiment, the technical feature "the target RO belongs to the first RO resource set" includes: the target RO is one of the multiple ROs included in the first RO resource set.

[0204] As an embodiment, the technical feature "the target RO belongs to the first RO resource set" includes: the target RO is mapped to at least one symbol occupied by the first RO resource set in the time domain.

[0205] As an embodiment, the technical feature "the target RO belongs to the first RO resource set" includes: the target RO and an RO included in the first RO resource set completely overlap in the time domain and the frequency domain, or have the same time-frequency resources.

[0206] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH" includes: a random access preamble or a random access preamble code carried by the first PRACH.

[0207] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH" includes: a random access preamble or a random access preamble code included in the first PRACH.

[0208] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH" includes: a random access preamble sequence carried on the first PRACH.

[0209] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH" includes: a random access preamble sequence used to generate the first PRACH.

[0210] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH" includes: a sequence used to generate a random access preamble carried by the first PRACH.

[0211] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH" includes: a random access preamble sequence mapped to the first PRACH.

[0212] As an embodiment, the first preamble set is a preamble set.

[0213] As an embodiment, the first preamble set includes multiple random access preambles.

[0214] As an embodiment, the first preamble set includes multiple consecutive random access preambles.

[0215] As an embodiment, the first preamble set includes multiple consecutive random access preambles associated with a synchronized broadcast signal.

[0216] As an embodiment, the number of random access preambles included in the first preamble set is a positive integer.

[0217] As an embodiment, the number of random access preambles included in the first preamble set is related to the symbol type.

[0218] As an embodiment, any random access preamble in the first preamble set is generated by a random access preamble sequence.

[0219] As an embodiment, any random access preamble in the first preamble set is used to carry the Msg1 message.

[0220] As an embodiment, the first preamble set is associated with the first characteristic combination.

[0221] As an embodiment, the first preamble set is a set of preambles configured for a feature combination.

[0222] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the first preamble set" includes: the first preamble set includes the random access preamble carried by the first PRACH.

[0223] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the first preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple preambles included in the first preamble set.

[0224] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the first preamble set" includes: the random access preamble carried by the first PRACH is one of multiple consecutive preambles included in the first preamble set and associated with a synchronized broadcast signal.

[0225] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the first preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple preambles included in the first preamble set indicated by the second information block.

[0226] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the first preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple consecutive preambles associated with the first SSB included in the first preamble set, the first SSB belongs to an SSB burst set, and the receiving beam of the first SSB corresponds to the transmitting beam of the first PRACH.

[0227] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the first preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple consecutive preambles associated with the first SSB included in the first preamble set, the first SSB belongs to the SSB burst set, and the receiving spatial filter of the first SSB corresponds to the sending spatial filter of the first PRACH.

[0228] As an embodiment, the technical feature "the first leading set is a leading set included in a leading set list in the multiple leading set lists" includes: the first leading set is one of the multiple leading sets included in a leading set list in the multiple leading set lists.

[0229] As an embodiment, the technical feature "the first leading set is a leading set included in a leading set list in the multiple leading set lists" includes: the first leading set is a leading set associated with the first characteristic combination among multiple leading sets included in a leading set list in the multiple leading set lists.

[0230] As an embodiment, the technical feature "the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists" includes: the first preamble set is one of the multiple preamble sets included in the preamble set list in the multiple preamble set lists and corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0231] As an embodiment, the technical feature "the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists" includes: the first preamble set is a preamble set associated with the first characteristic combination among the multiple preamble sets included in the preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0232] As an embodiment, the characteristic is the eRedCap (enhanced reduced capabilities, enhanced 5G lightweight) characteristic indicated by the domain "eRedCap".

[0233] As an embodiment, the characteristic is the Msg1 Repetition characteristic indicated by the field “msg1-Repetitions”.

[0234] As an embodiment, the characteristic is the Msg3 (Message 3) Repetition characteristic indicated by the field “msg3-Repetitions”.

[0235] As an embodiment, the characteristic is the NSAG (Network SliceAS Group) characteristic indicated by the domain "nsag".

[0236] As an embodiment, the characteristic is the RedCap (Reduced Capability, 5G lightweight) characteristic indicated by the domain "redCap".

[0237] As an embodiment, the characteristic is an SDT (Small Data Transmission) characteristic indicated by the field "smallData".

[0238] As an embodiment, the characteristic is a full-duplex characteristic indicated by the field "SBFD".

[0239] As an embodiment, the characteristic is a capability possessed or supported by the terminal.

[0240] As an embodiment, the characteristic is a capability possessed or supported by the terminal during the random access process.

[0241] As an embodiment, the characteristic is the device type of the terminal.

[0242] As an embodiment, the first characteristic combination is a combination of multiple characteristics.

[0243] As an embodiment, the first characteristic combination includes at least one characteristic.

[0244] As an embodiment, the first characteristic combination includes multiple characteristics.

[0245] As an embodiment, the first characteristic combination includes only one characteristic.

[0246] As an embodiment, the first characteristic combination does not include any characteristic.

[0247] As an embodiment, the first feature combination is determined or indicated by IE "featureCombination".

[0248] As an embodiment, the first feature combination is a combination of features set to true in IE "featureCombination".

[0249] As an embodiment, the first feature combination includes multiple features set to true in IE "featureCombination".

[0250] As an embodiment, the first feature combination represents multiple features supported by the terminal.

[0251] As an embodiment, the first feature combination includes at least one of the eRedCap feature, the msg1-Repetitions feature, the msg3-Repetitions feature, the nsag feature, the redCap feature, the smallData feature, and the full-duplex or SBFD feature.

[0252] As an embodiment, the technical feature "the first characteristic combination includes at least one characteristic" includes: the first characteristic combination includes only one characteristic.

[0253] As an embodiment, the technical feature "the first characteristic combination includes at least one characteristic" includes: the first characteristic combination includes multiple characteristics.

[0254] As an embodiment, the technical feature "the first characteristic combination includes at least one characteristic" includes: so the first characteristic combination includes multiple characteristics set to true.

[0255] As an embodiment, the technical feature "the first characteristic combination includes at least one characteristic" includes: the first characteristic combination includes multiple different characteristics.

[0256] As an embodiment, the technical feature "the first characteristic combination includes at least one characteristic" includes: the first characteristic combination may include a full-duplex or SBFD characteristic.

[0257] As an embodiment, the technical feature "the first characteristic combination includes at least one characteristic" includes: the first characteristic combination does not include full-duplex or SBFD characteristics.

[0258] As an embodiment, the technical feature "the first preamble set is associated with the first characteristic combination" includes: the first preamble set is related to the first characteristic combination.

[0259] As an embodiment, the technical feature of "the first preamble set is associated with the first characteristic combination" includes: the first preamble set and the first characteristic combination are in one-to-one correspondence.

[0260] As an embodiment, the technical feature "the first preamble set is associated with a first characteristic combination" includes: the first preamble set is configured for the first characteristic combination.

[0261] As an embodiment, the technical feature "the first preamble set is associated with a first characteristic combination" includes: the first preamble set and the first characteristic combination are indicated (or configured) by the same IE.

[0262] As an embodiment, the technical feature "the first preamble set is associated with the first feature combination" includes: the first preamble set and the first feature combination are indicated (or configured) by three fields in the same IE; wherein, one field indicates the first feature combination, and the other two domains are used to jointly determine the first preamble set.

[0263] As an embodiment, the technical feature "the first preamble set is associated with a first feature combination" includes: the terminal uses the random access preamble included in the first preamble set to initiate random access, indicating that the terminal supports the first feature combination.

[0264] As an embodiment, the technical feature "the first preamble set is associated with a first feature combination" includes: the terminal does not use the random access preamble included in the first preamble set to initiate random access, indicating that the terminal does not support the first feature combination at the same time.

[0265] As an embodiment, the technical feature "the first preamble set is associated with a first characteristic combination" includes: the preamble sequence carried by the first PRACH belonging to the first preamble set is associated with the first characteristic combination.

[0266] As an embodiment, the technical feature "the first preamble set is associated with a first characteristic combination" includes: the first PRACH includes a random access preamble included in the first preamble set, indicating that the terminal supports the first characteristic combination.

[0267] As an embodiment, the technical feature "the multiple leading set lists correspond to multiple symbol types respectively" includes: the multiple leading set lists correspond to the multiple symbol types one by one.

[0268] As an embodiment, the technical feature "the multiple leading set lists correspond to multiple symbol types respectively" includes: the multiple leading set lists are associated with the multiple symbol types.

[0269] As an embodiment, the technical feature "the multiple leading set lists correspond to multiple symbol types respectively" includes: the corresponding relationship between the multiple leading set lists and the multiple symbol types is predefined or configured.

[0270] As an embodiment, the technical feature "the multiple leading set lists correspond to multiple symbol types respectively" includes: the multiple leading set lists are configured respectively for the multiple symbol types.

[0271] As an embodiment, the technical feature "the multiple leading set lists correspond to multiple symbol types respectively" includes: the multiple leading set lists include T1 leading set lists, the T1 leading set lists correspond to T1 symbol types respectively, and T1 is a positive integer greater than 1. As a subsidiary embodiment of this embodiment, T1 is equal to 2.

[0272] As an embodiment, the technical feature "the multiple preamble set lists correspond to multiple symbol types respectively" includes: the field "featureCombinationPreamblesList-r19" indicates the preamble set list for full-duplex symbols, and the field "featureCombinationPreamblesList-r17" indicates the preamble set list for non-full-duplex symbol types.

[0273] As an embodiment, the technical feature "the multiple preamble set lists correspond to multiple symbol types respectively" includes: the field "featureCombinationPreamblesList-r19" indicates the preamble set list for the first symbol type, and the field "featureCombinationPreamblesList-r17" indicates the preamble set list for the second symbol type. As a subsidiary embodiment of this embodiment, the first symbol type is a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration; the second symbol type is a flexible full-duplex symbol or a non-full-duplex symbol indicated as a TDD uplink and downlink configuration.

[0274] As an embodiment, the technical feature "the multiple preamble set lists correspond to multiple symbol types respectively" includes: the field "featureCombinationPreamblesList-r19" indicates the preamble set list for the first symbol type, and the field "featureCombinationPreamblesList-r17" indicates the preamble set list for the second symbol type. As a subsidiary embodiment of this embodiment, the first symbol type is a full-duplex symbol indicated as a downlink by the TDD uplink and downlink configuration; the second symbol type is a flexible full-duplex symbol indicated as a TDD uplink and downlink configuration, or is indicated as an uplink or flexible non-full-duplex symbol by the TDD uplink and downlink configuration.

[0275] As an embodiment, the technical feature “the preamble set list to which the first preamble set belongs is a first preamble set list” includes: the first preamble set belongs to the first preamble set list.

[0276] As an embodiment, the technical feature “the preamble set list to which the first preamble set belongs is a first preamble set list” includes: the first preamble set list includes the first preamble set.

[0277] As an embodiment, the technical feature “the preamble set list to which the first preamble set belongs is a first preamble set list” includes: the first preamble set is one of a plurality of preamble sets included in the first preamble set list.

[0278] As an embodiment, the technical feature "the preamble set list to which the first preamble set belongs is a first preamble set list" includes: "the preamble set list to which the first preamble set belongs" and "the first preamble set list" are equivalent or replaceable.

[0279] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the first preamble set list depends on the symbol type of at least one symbol included in the target RO in the time domain.

[0280] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the symbol type of at least one symbol included in the target RO in the time domain is used to determine the first preamble set list.

[0281] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the first preamble set list is related to the symbol type of at least one symbol included in the target RO in the time domain.

[0282] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the first preamble set list corresponds one-to-one with the symbol type of at least one symbol included in the target RO in the time domain.

[0283] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists and corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the first preamble set list is one of the multiple preamble set lists.

[0284] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the symbol type of at least one symbol included in the time domain of the target RO is one of T1 symbol types, the multiple preamble set lists include T1 preamble set lists, the T1 symbol types correspond one-to-one to the T1 preamble set lists, and the first preamble set list is a preamble set list corresponding to the symbol type of at least one symbol included in the time domain of the target RO among the T1 preamble set lists.

[0285] As an embodiment, the technical feature "the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: when the symbol type of at least one symbol included in the target RO in the time domain is a symbol type, the first preamble set list is one of the multiple preamble set lists; when the symbol type of at least one symbol included in the target RO in the time domain is another symbol type, the first preamble set list is another preamble set list in the multiple preamble set lists.

[0286] As an embodiment, the technical feature "the first preamble set list is a preamble set list among the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain" includes: the symbol type of at least one symbol included in the target RO in the time domain is one of the factors for determining the first preamble set list from the multiple preamble set lists.

[0287] Example 2

[0288] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0289] Attached Figure 2 The network architecture of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems is described. The network architecture of LTE, LTE-A, and future 5G systems is called EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS200 or some other appropriate terminology. 5GS / EPS200 may include one or more UE201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5G-CN (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. 5GS / EPS200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. Figure 2As shown, the 5GS / EPS200 provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services. NG-RAN 202 includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (Transmitter Receiver Point), or some other suitable term. gNB 203 provides an access point to 5G-CN / EPC 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB 203 is connected to 5G-CN / EPC 210 via S1 / NG interface. 5G-CN / EPC 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212 and P-GW (Packet Data Network Gateway) / UPF 213.MME / AMF / SMF 211 is a control node that handles signaling between UE 201 and 5G-CN / EPC 210. In general, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, and S-GW / UPF 212 itself is connected to P-GW / UPF 213. P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet services 230. Internet services 230 include operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet switching services.

[0290] As an embodiment, the UE201 corresponds to the terminal in this application.

[0291] As an embodiment, the UE 201 supports transmission in a flexible duplex mode.

[0292] As an embodiment, the gNB (eNB) 201 corresponds to the base station in this application.

[0293] As an embodiment, the gNB (eNB) 201 supports transmission in flexible duplex mode.

[0294] Example 3

[0295] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0296] Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a terminal (RSU (RoadSide Unit) in UE or V2X (Vehicle to Everything), vehicle-mounted equipment or vehicle-mounted communication module) and a base station (gNB, RSU in UE or V2X, vehicle-mounted equipment or vehicle-mounted communication module), or between two UEs is shown in three layers: Layer 1 (Layer 1, L1), Layer 2 (Layer 2, L2) and Layer 3 (Layer 3, L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to as PHY 301 in this article. L2305 is above PHY 301 and is responsible for the link between the terminal and the base station, or between two UEs through PHY 301. L2305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the base station. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of terminals between base stations. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest process number). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between terminals. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and using RRC signaling between the base station and the terminal to configure the lower layer. The radio protocol architecture of the user plane 350 includes layer 1 (L1) and layer 2 (L2). The radio protocol architecture for the terminal and the base station in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in L2355, the RLC sublayer 353 in L2355, and the MAC sublayer 352 in L2355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.L2355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support the diversity of services. Although not shown, the terminal may have several upper layers above L2355, including a network layer (e.g., an IP (Internet Protocol) layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0297] As an example, Figure 3 The wireless protocol architecture in is applicable to the terminal described in this application.

[0298] As an example, Figure 3 The wireless protocol architecture in is applicable to the base station described in this application.

[0299] As an embodiment, the first information block in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0300] As an embodiment, the second information block in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0301] As an embodiment, the first SSB in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0302] As an embodiment, the first PRACH in the present application is generated by the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0303] As an embodiment, the third information block in the present application is generated in the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0304] Example 4

[0305] Embodiment 4 shows a schematic diagram of a terminal and a base station according to an embodiment of the present application, as shown in the attached Figure 4 shown.

[0306] The terminal (450) may include a controller / processor 490, a data source / buffer 480, a receive processor 452, a transmitter / receiver 456 and a transmit processor 455, the transmitter / receiver 456 including an antenna 460.

[0307] The base station (410) may include a controller / processor 440, a data source / buffer 430, a receive processor 412, a transmitter / receiver 416 and a transmit processor 415, wherein the transmitter / receiver 416 includes an antenna 420.

[0308] In DL (Downlink), the upper layer packets are provided to the controller / processor 440. The controller / processor 440 implements the functions of the L2 layer and above. In DL, the controller / processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the terminal 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operations, retransmission of lost packets, and high-level signaling to the terminal 450. The high-level information carried by the first information block and the second information block in the present application is generated in the controller / processor 440. The transmission processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation, such as the physical layer signal carrying the first information block and the physical layer signal carrying the second information block are completed in the transmission processor 415. The generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and / or multi-carrier symbol, and then mapped to the antenna 420 by the transmit processor 415 via the transmitter 416 and transmitted in the form of a radio frequency signal. At the receiving end, each receiver 456 receives the radio frequency signal through its corresponding antenna 460, and each receiver 456 recovers the baseband information modulated on the radio frequency carrier and provides the baseband information to the receive processor 452. The receive processor 452 implements various signal reception processing functions of the L1 layer. The signal reception processing function includes demodulating the physical layer signal carrying the first information block in the present application and the physical layer signal carrying the second information block in the present application based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK)) through the multi-carrier symbols in the multi-carrier symbol stream, and then descrambling, decoding and deinterleaving to recover the data or control transmitted by the base station 410 on the physical channel, and then providing the data and control signals to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and above, and the controller / processor 490 interprets the high-level information. This includes interpreting the high-level information carried by the first information block and the second information block. The controller / processor may be associated with a memory 480 that stores program codes and data. The memory 480 may be referred to as a computer-readable medium.

[0309] In uplink (UL) transmission, similar to downlink transmission, high-layer information including high-layer information carried by the first PRACH in the present application (when the first PRACH carries high-layer information) is generated by the controller / processor 490 and then implemented by the transmit processor 455 for various signal transmission processing functions of the L1 layer (i.e., physical layer). The first PRACH is mapped by the transmit processor 455 to the antenna 460 via the transmitter 456 and transmitted in the form of a radio frequency signal. The receiver 416 receives the radio frequency signal through its corresponding antenna 420, and each receiver 416 recovers the baseband information modulated onto the radio frequency carrier and provides the baseband information to the receive processor 412. The receive processor 412 implements various signal reception processing functions for the L1 layer (i.e., physical layer), including receiving and processing the first PRACH in the present application, and then provides data and / or control signals to the controller / processor 440. The functions of the L2 layer implemented in the controller / processor 440 include interpreting high-layer information such as the high-layer information carried by the first PRACH in the present application (when the first PRACH carries high-layer information). The controller / processor may be associated with a cache 430 that stores program codes and data. The cache 430 may be a computer readable medium.

[0310] As an embodiment, the terminal 450 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the terminal 450 device at least: receives a first information block and a second information block, the first information block indicates a symbol type of at least one symbol, the second information block indicates a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists includes at least one preamble set; sends a first PRACH in a target RO, and the target RO belongs to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, and the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0311] As an embodiment, the terminal 450 device includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first information block and a second information block, the first information block indicating a symbol type of at least one symbol, the second information block indicating a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists including at least one preamble set; sending a first PRACH in a target RO, the target RO belonging to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0312] As an embodiment, the base station 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The base station 410 device at least: sends a first information block and a second information block, the first information block indicates the symbol type of at least one symbol, the second information block indicates a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists includes at least one preamble set; receives a first PRACH in a target RO, the target RO belongs to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first characteristic combination, the first characteristic combination includes at least one characteristic; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0313] As an embodiment, the base station 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first information block and a second information block, the first information block indicating a symbol type of at least one symbol, the second information block indicating a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists including at least one preamble set; receiving a first PRACH in a target RO, the target RO belonging to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is a first preamble set list, the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0314] As an embodiment, the terminal 450 is a user equipment (UE).

[0315] As an embodiment, the terminal 450 is a user equipment supporting transmission in a flexible duplex mode.

[0316] As an embodiment, the base station 410 is a base station device (gNB / eNB).

[0317] As an embodiment, the base station 410 is a base station device supporting transmission in a flexible duplex mode.

[0318] As an embodiment, the receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490 are used to receive the first information block in the present application.

[0319] As an embodiment, the receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490 are used to receive the second information block in the present application.

[0320] As an embodiment, the transmitter 456 (including the antenna 460), the transmit processor 455 and the controller / processor 490 are used to send the first PRACH in the present application.

[0321] As an embodiment, the transmitter 416 (including the antenna 420), the transmission processor 415 and the controller / processor 440 are used to send the first information block in the present application.

[0322] As an embodiment, the transmitter 416 (including the antenna 420), the transmission processor 415 and the controller / processor 440 are used to send the second information block in the present application.

[0323] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to receive the first PRACH in the present application.

[0324] Example 5

[0325] Embodiment 5 illustrates a flow chart of terminal and base station transmission according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 In the example, base station N500 is a base station maintaining the serving cell of terminal U550. It should be noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0326] for Base Station N500 , sending a first information block in step S501, sending a second information block in step S502, and receiving a first PRACH in step S503.

[0327] for Terminal U550 , receiving a first information block in step S551, receiving a second information block in step S552, and sending a first PRACH in step S553.

[0328] In embodiment 5, the first information block indicates the symbol type of at least one symbol, the second information block indicates a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists includes at least one preamble set; the target RO belongs to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first characteristic combination, and the first characteristic combination includes at least one characteristic; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included by the target RO in the time domain.

[0329] As an embodiment, the second information block precedes the first information block.

[0330] As an embodiment, the second information block follows the first information block.

[0331] As an embodiment, the first information block and the second information block are carried through different IEs or different fields in the same signaling.

[0332] As an embodiment, the first information block and the second information block belong to the same IE. As a subsidiary embodiment of the above embodiment, the advantage of doing so is that resources are saved.

[0333] As an embodiment, the first information block and the second information block belong to two different IEs, respectively. As a subsidiary embodiment of the above embodiment, the advantage of doing so is that the design is simple.

[0334] Example 6

[0335] Embodiment 6 illustrates a schematic diagram of a first leading set according to an embodiment of the present application, as shown in the attached Figure 6 As shown in the attached Figure 6 In the figure, each cross-line filled rectangle represents a random access preamble, each unfilled rectangle represents a synchronous broadcast signal, the numbers #0 and #n represent index values ​​of the synchronous broadcast signal, and the first preamble set includes multiple consecutive preambles associated with a synchronous broadcast signal.

[0336] In Embodiment 6, the first preamble set in the present application includes multiple consecutive preambles associated with a synchronous broadcast signal, and the second information block in the present application indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0337] As an embodiment, the second information block indicates the index value of the starting preamble of multiple consecutive preambles included in the first preamble set. The use of a design similar to the existing protocol can not only accurately obtain multiple consecutive preambles associated with a synchronous broadcast signal, but also ensure compatibility.

[0338] As an embodiment, the synchronous broadcast signal is a synchronization signal.

[0339] As an embodiment, the synchronization broadcast signal is a physical broadcast channel (PBCH).

[0340] As an embodiment, the synchronization broadcast signal includes a synchronization signal and a physical broadcast channel.

[0341] As an embodiment, the synchronization broadcast signal is a synchronization signal physical broadcast channel block (SS / PBCH block).

[0342] As an embodiment, the synchronization broadcast signal is a synchronization signal block (SSB).

[0343] As an embodiment, the synchronization broadcast signal is a 6G synchronization signal or a 6G physical broadcast channel.

[0344] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with one synchronized broadcast signal" includes: the first preamble set only includes multiple consecutive preambles associated with one synchronized broadcast signal.

[0345] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with one synchronized broadcast signal" includes: the first preamble set includes multiple consecutive preambles mapped to one synchronized broadcast signal.

[0346] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the first preamble set includes partially consecutive preambles contained in 1 / N ROs associated with a synchronized broadcast signal in the SSB-RO mapping, where N is the number of SSBs corresponding to an RO in the SSB-RO mapping.

[0347] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with one synchronized broadcast signal" includes: the number of consecutive preambles associated with each synchronized broadcast signal included in the first preamble set is the same.

[0348] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with one synchronous broadcast signal" includes: there are different numbers of consecutive preambles respectively associated with two synchronous broadcast signals included in the first preamble set.

[0349] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the second information block indicates multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set.

[0350] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: part or all of the second information block is used to explicitly or implicitly indicate the multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set.

[0351] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the field "numberOfPreamblesPerSSB-ForThisPartition" included in the second information block indicates the number of multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set.

[0352] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the field "numberOfPreamblesPerSSB-ForThisPartition" included in the second information block indicates the number of multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set, and the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0353] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set are determined by a starting index value and the number of consecutive preambles, and the second information block indicates the starting index value and the number of consecutive preambles.

[0354] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set are K preambles determined in a sequentially increasing manner starting from a starting index value, where K is the number of consecutive preambles, and K is a positive integer greater than 1, and the second information block indicates the starting index value and the K.

[0355] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: the multiple consecutive preambles associated with a synchronized broadcast signal included in the first preamble set are K preambles determined in a sequential descending manner starting from a starting index value, where K is the number of consecutive preambles, and K is a positive integer greater than 1, and the second information block indicates the starting index value and the K.

[0356] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: in the SSB-RO mapping, a synchronized broadcast signal is associated with 1 / N ROs, when the N is less than 1, the multiple consecutive preambles associated with a synchronized broadcast signal are multiple consecutive preambles determined by a starting index value and the number of consecutive preambles included in each RO of the 1 / N ROs associated with a synchronized broadcast signal, and the second information block indicates the starting index value and the number of consecutive preambles.

[0357] As an embodiment, the technical feature "the first preamble set includes multiple consecutive preambles associated with a synchronized broadcast signal" includes: in the SSB-RO mapping, a synchronized broadcast signal is associated with 1 / N ROs, when the N is greater than or equal to 1, the multiple consecutive preambles associated with a synchronized broadcast signal are multiple consecutive preambles determined by a starting index value and the number of consecutive preambles included in the 1 / N ROs associated with a synchronized broadcast signal, and the second information block indicates the starting index value and the number of consecutive preambles.

[0358] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is a numerical value.

[0359] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is a positive integer.

[0360] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is greater than or equal to 1 and less than or equal to 64.

[0361] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is a positive integer between 1 and 64, which is a closed interval.

[0362] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is the index value of the random access preamble with the smallest index value among the multiple consecutive preambles.

[0363] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is the smallest index value among the multiple index values ​​corresponding to the multiple consecutive preambles.

[0364] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is the index value of the first random access preamble among the multiple consecutive preambles.

[0365] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is the largest index value among the multiple index values ​​corresponding to the multiple consecutive preambles.

[0366] As an embodiment, the index value of the starting preamble of the multiple consecutive preambles is the index value of the last random access preamble among the multiple consecutive preambles.

[0367] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: the second information block explicitly or implicitly indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0368] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: part or all of the second information block is used to explicitly or implicitly indicate the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0369] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: the second information block is used to determine the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0370] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set depends on the second information block.

[0371] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: a field included in the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0372] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set depends on the value of the field "startPreambleForThisPartition" included in the second information block.

[0373] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: the value of the field "startPreambleForThisPartition" included in the second information block is used to determine (or is used to calculate) the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set.

[0374] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set is related to the field "startPreambleForThisPartition" included in the second information block.

[0375] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: in the SSB-RO mapping, a synchronized broadcast signal is associated with 1 / N ROs, when the N is less than 1, the index values ​​of the starting preambles of the multiple consecutive preambles included in the first preamble set are the same, and are equal to the value of the field "startPreambleForThisPartition" included in the second information block.

[0376] As an embodiment, “the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set” includes: in the SSB-RO mapping, one synchronized broadcast signal is associated with 1 / N ROs, when N is greater than or equal to 1, the index values ​​of the starting preambles of the multiple consecutive preambles included in the first preamble set are different, and the index value of the starting preamble of the multiple consecutive preambles of the nth synchronized broadcast signal is equal to Where N is the number of simultaneous broadcast signals, is the total number of random access preambles corresponding to N synchronous broadcast signals, and the startPreambleForThisPartition is equal to the value of the field "startPreambleForThisPartition" included in the second information block.

[0377] As an embodiment, "the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set" includes: in the SSB-RO mapping, a synchronized broadcast signal is associated with 1 / N ROs, when the N is less than 1, the index values ​​of the starting preambles of the multiple consecutive preambles included in each of the 1 / N ROs associated with a synchronized broadcast signal in the first preamble set are the same, and are equal to the value of the field "startPreambleForThisPartition" included in the second information block.

[0378] As an embodiment, “the second information block indicates the index value of the starting preamble of the multiple consecutive preambles included in the first preamble set” includes: in the SSB-RO mapping, a synchronized broadcast signal is associated with 1 / N ROs, when N is greater than or equal to 1, the index values ​​of the starting preambles of the multiple consecutive preambles included in the 1 / N ROs associated with a synchronized broadcast signal in the first preamble set are different, and the index value of the starting preamble of the multiple consecutive preambles of the nth synchronized broadcast signal is equal to Where N is the number of simultaneous broadcast signals, is the total number of random access preambles corresponding to N synchronous broadcast signals, and the startPreambleForThisPartition is equal to the value of the field "startPreambleForThisPartition" included in the second information block.

[0379] Example 7

[0380] Example 7 illustrates a schematic diagram of a target threshold according to an embodiment of the present application, as shown in the attached figure. Figure 7 As shown in the attached Figure 7 In the embodiment, the second information block indicates a target threshold value for the first characteristic combination.

[0381] In embodiment 7, the first characteristic combination in the present application includes a full-duplex characteristic, the second information block in the present application indicates a target threshold for the first characteristic combination, and the terminal in the present application chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold.

[0382] As an embodiment, the terminal is judged to initiate random access on a full-duplex symbol based on the measured RSRP value exceeding the target threshold, thereby improving the probability of successful transmission of PRACH and reducing the implementation complexity of transmitting PRACH on full-duplex symbols.

[0383] As an embodiment, the technical feature "the first characteristic combination includes a full-duplex characteristic" includes: the first characteristic combination only includes a full-duplex (SBFD) characteristic.

[0384] As an embodiment, the technical feature "the first characteristic combination includes a full-duplex characteristic" includes: the first characteristic combination includes multiple characteristics, one of the multiple characteristics is a full-duplex (SBFD) characteristic.

[0385] As an embodiment, the technical feature "the first feature combination includes a full-duplex feature" includes: when the domain corresponding to the full-duplex feature is set to true, the first feature combination includes the full-duplex feature.

[0386] As an embodiment, the technical feature "the first feature combination includes a full-duplex feature" includes: when the domain corresponding to the full-duplex feature is set to false, the first feature combination does not include the full-duplex feature.

[0387] As an embodiment, the full-duplex characteristic is that the terminal supports initiating random access on full-duplex symbols.

[0388] As an embodiment, the full-duplex characteristic is a SBFD characteristic.

[0389] As an embodiment, the full-duplex characteristic is a characteristic of random access in SBFD symbols.

[0390] As an embodiment, the full-duplex characteristic is a characteristic of initiating contention-based random access in SBFD symbols.

[0391] As an embodiment, the full-duplex characteristic is a characteristic of initiating random access in an RRC idle state (idle) or inactive state (inactive) in a SBFD symbol.

[0392] As an embodiment, the full-duplex characteristic is that the terminal supports initiating random access on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0393] As an embodiment, the full-duplex characteristic is a characteristic that the base station supports simultaneous transmission and reception.

[0394] As an embodiment, the full-duplex characteristic is a characteristic that the base station and the terminal support simultaneous transmission and reception.

[0395] As an embodiment, the full-duplex characteristic is that the terminal supports that all random access processes after the first PRACH can be sent on full-duplex symbols.

[0396] As an embodiment, the full-duplex characteristic is that the terminal supports that all random access processes after the first PRACH can be sent on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration.

[0397] As an embodiment, the full-duplex characteristic is that the terminal supports the transmission of part of the first PRACH and subsequent random access processes on full-duplex symbols.

[0398] As an embodiment, the full-duplex characteristic is that the terminal supports sending Msg1 and Msg3 in full-duplex symbols.

[0399] As an embodiment, the full-duplex characteristic is that the terminal supports the transmission of part of the first PRACH and subsequent random access processes on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration.

[0400] As an embodiment, the full-duplex characteristic is that the base station supports the first PRACH and subsequent random access processes to be performed on different TRPs (Transmit Receive Points) or panels.

[0401] As an embodiment, the full-duplex characteristic is that the terminal supports initiating random access on an uplink sub-band.

[0402] As an embodiment, the target threshold is a numerical value.

[0403] As an embodiment, the target threshold is a non-negative number.

[0404] As an embodiment, the unit of the target threshold is dB.

[0405] As an embodiment, the unit of the target threshold is dBm.

[0406] As an embodiment, the unit of the target threshold is mW.

[0407] As an embodiment, the unit of the target threshold is W.

[0408] As an embodiment, the target threshold is the value of the field "rsrp-ThresholdSBFD".

[0409] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the second information block explicitly or implicitly indicates the target threshold for the first characteristic combination.

[0410] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: part or all of the second information block is used to explicitly or implicitly indicate the target threshold for the first characteristic combination.

[0411] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the second information block is used to determine the target threshold for the first characteristic combination.

[0412] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the target threshold for the first characteristic combination depends on the second information block.

[0413] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the second information block indicates the target threshold, and the target threshold is related to one characteristic in the first characteristic combination.

[0414] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the second information block indicates the target threshold for the full-duplex characteristic included in the first characteristic combination.

[0415] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the second information block indicates the target threshold for the full-duplex characteristic.

[0416] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: a field in the second information block corresponding to the first characteristic combination indicates the target threshold.

[0417] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: the field "rsrp-ThresholdSBFD" in the second information block indicates the target threshold.

[0418] As an embodiment, the technical feature "the second information block indicates a target threshold for the first characteristic combination" includes: a field in the second information block corresponding to the leading set associated with the first characteristic combination indicates the target threshold.

[0419] As an embodiment, the technical feature "the second information block indicates a target threshold for the first feature combination" includes: the IE "FeatureCombinationPreambles" in the second information block containing the preamble set associated with the first feature combination indicates the target threshold.

[0420] As an embodiment, the technical feature "the second information block indicates the target threshold for the first feature combination" includes: the field "rsrp-ThresholdSBFD" in the IE "FeatureCombinationPreambles" of the preamble set associated with the first feature combination in the second information block indicates the target threshold.

[0421] As an embodiment, the second information block also indicates "rsrp-ThresholdMsg3" for the first characteristic combination.

[0422] As an embodiment, the second information block also indicates "rsrp-ThresholdMsg3" of the msg3-Repetitions characteristic in the first characteristic combination.

[0423] As an embodiment, the second information block further indicates "rsrp-ThresholdMsg1-RepetitionNum2" for the first characteristic combination.

[0424] As an embodiment, the second information block also indicates "rsrp-ThresholdMsg1-RepetitionNum4" for the first characteristic combination.

[0425] As an embodiment, the second information block further indicates "rsrp-ThresholdMsg1-RepetitionNum8" for the first characteristic combination.

[0426] As an embodiment, the second information block further indicates "rsrp-ThresholdMsg1-RepetitionNum2", "rsrp-ThresholdMsg1-RepetitionNum4" and "rsrp-ThresholdMsg1-RepetitionNum8" for the msg1-Repetitions characteristic in the first characteristic combination.

[0427] As an embodiment, the full-duplex symbol is a SBFD symbol.

[0428] As an embodiment, the full-duplex symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0429] As an embodiment, the full-duplex symbol is a time domain symbol configured with SBFD.

[0430] As an embodiment, the full-duplex symbol is a time domain symbol configured by a subband of SBFD in the time domain.

[0431] As an embodiment, the full-duplex symbol is a time domain symbol supporting full-duplex.

[0432] As an embodiment, the full-duplex symbol is a time domain symbol applicable to SBFD.

[0433] As an embodiment, the full-duplex symbol is a time domain symbol capable of simultaneously performing uplink transmission and downlink transmission.

[0434] As an embodiment, the full-duplex symbol is a time domain symbol that can simultaneously perform uplink transmission and downlink transmission on the network side (or base station side).

[0435] As an embodiment, the full-duplex symbol is a time domain symbol that can simultaneously perform uplink transmission and downlink transmission on both the network side (or base station side) and the user equipment side.

[0436] As an embodiment, the full-duplex symbol is a time domain symbol indicated (or provided) by signaling for configuring SBFD.

[0437] As an embodiment, the full-duplex symbol is a symbol that can be used for uplink transmission on the downlink symbol configured in "TDD-UL-DL-ConfigCommon".

[0438] As an embodiment, only downlink symbols are considered, which simplifies system design.

[0439] As an embodiment, the full-duplex symbol is a symbol that can be used for uplink transmission on a downlink or flexible symbol configured in "TDD-UL-DL-ConfigCommon".

[0440] As an embodiment, the full-duplex symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" and configured (or indicated) as a SBFD symbol, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" and configured (or indicated) as a SBFD symbol.

[0441] As an embodiment, the full-duplex symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" and indicated (or provided) by the first information block, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" and indicated (or provided) by the first information block.

[0442] As an embodiment, only “tdd-UL-DL-ConfigCommon” is considered to simplify the design and reduce the workload of standards.

[0443] As an embodiment, both downlink and flexible symbols are taken into consideration, thereby expanding configuration flexibility.

[0444] As an embodiment, the measured RSRP value is an RSRP (reference signal received power) value obtained based on a downlink reference signal measurement. As a subsidiary embodiment of this embodiment, the downlink reference signal is a CSI-RS (Channel State Information-Reference Signal) or SSB.

[0445] As an embodiment, the measured RSRP value is a numerical value.

[0446] As an embodiment, the measured RSRP value is a non-negative number.

[0447] As an embodiment, the unit of the measured RSRP value is dB.

[0448] As an embodiment, the unit of the measured RSRP value is dBm.

[0449] As an embodiment, the unit of the measured RSRP value is mW.

[0450] As an embodiment, the unit of the measured RSRP value is W.

[0451] As an embodiment, the technical feature "the terminal's choice to initiate random access on a full-duplex symbol depends on the measured RSRP value exceeding the target threshold" includes: the terminal's choice to initiate random access on a full-duplex symbol is related to the measured RSRP value exceeding the target threshold.

[0452] As an embodiment, the technical feature "the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold" includes: the measured RSRP value exceeding the target threshold depends on the terminal choosing to initiate random access on a full-duplex symbol.

[0453] As an embodiment, the technical feature "the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold" includes: the measured RSRP value exceeding the target threshold is used to determine that the terminal chooses to initiate random access on a full-duplex symbol.

[0454] As an embodiment, the technical feature "the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold" includes: the measured RSRP value exceeding the target threshold is a condition for the terminal to choose to initiate random access on a full-duplex symbol.

[0455] As an embodiment, the technical feature "the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold" includes: the measured RSRP value exceeding the target threshold is one of the multiple conditions for the terminal to choose to initiate random access on a full-duplex symbol.

[0456] As an embodiment, the technical feature "the terminal's choice to initiate random access on a full-duplex symbol depends on the measured RSRP value exceeding the target threshold" includes: the measured RSRP value exceeding the target threshold is a valid condition for the terminal to choose to initiate random access on a full-duplex symbol.

[0457] As an embodiment, the technical feature "the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold" includes: when the measured RSRP value exceeds the target threshold, the terminal may choose to initiate random access on a full-duplex symbol; when the measured RSRP value does not exceed the target threshold, the terminal may not initiate random access on a full-duplex symbol.

[0458] As an embodiment, the technical feature "the terminal chooses to initiate random access on a full-duplex symbol depending on the measured RSRP value exceeding the target threshold" includes: when the measured RSRP value is greater than or equal to the target threshold, the terminal may choose to initiate random access on a full-duplex symbol; when the measured RSRP value is less than or equal to the target threshold, the terminal may not initiate random access on a full-duplex symbol.

[0459] Example 8

[0460] Embodiment 8 illustrates a schematic diagram of a second preamble set according to an embodiment of the present application, as shown in the attached figure. Figure 8 As shown in the attached Figure 8 In the present invention, when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to the second preamble set.

[0461] In Example 8, when the first preamble set list in the present application does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH in the present application belongs to the second preamble set, and the second preamble set in the present application is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

[0462] As an embodiment, when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list, which ensures the performance of random access and the robustness of the system.

[0463] As an embodiment, the second preamble set is a preamble set.

[0464] As an embodiment, the second preamble set includes multiple random access preambles.

[0465] As an embodiment, the second preamble set includes multiple consecutive random access preambles.

[0466] As an embodiment, the second preamble set includes multiple consecutive random access preambles associated with a synchronized broadcast signal.

[0467] As an embodiment, the number of random access preambles included in the second preamble set is a positive integer.

[0468] As an embodiment, the number of random access preambles included in the second preamble set is related to the symbol type.

[0469] As an embodiment, any random access preamble in the second preamble set is generated by a random access preamble sequence.

[0470] As an embodiment, any random access preamble in the second preamble set is used to carry the Msg1 message.

[0471] As an embodiment, the second preamble set is associated with the first characteristic combination.

[0472] As an embodiment, the second preamble set is not associated with any characteristics.

[0473] As an embodiment, the second leading set is a leading set in the first leading set list that is not associated with any characteristics.

[0474] As an embodiment, the second leading set is a leading set outside the first leading set list.

[0475] As an embodiment, the leading set associated with the first characteristic combination is the leading set corresponding to the first characteristic combination.

[0476] As an embodiment, the preamble set associated with the first feature combination is a preamble set configured for the first feature combination.

[0477] As an embodiment, the leading set associated with the first characteristic combination is a leading set used to indicate the first characteristic combination.

[0478] As an embodiment, the preamble set associated with the first feature combination is a preamble set indicating that the terminal supports the first feature combination.

[0479] As an embodiment, the preamble set associated with the first feature combination is a preamble set indicated or configured by an IE indicating the first feature combination.

[0480] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the preamble sequence carried by the first PRACH depends on the second preamble set.

[0481] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the second preamble set is used to determine the preamble sequence carried by the first PRACH.

[0482] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the second preamble set is related to the preamble sequence carried by the first PRACH.

[0483] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the random access preamble carried by the first PRACH belongs to the second preamble set.

[0484] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the second preamble set includes the random access preamble carried by the first PRACH.

[0485] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple preambles included in the second preamble set.

[0486] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the random access preamble carried by the first PRACH is one of multiple consecutive preambles associated with a synchronized broadcast signal included in the second preamble set.

[0487] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple preamble sequences included in the second preamble set indicated by the second information block.

[0488] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple consecutive preambles associated with the first SSB included in the second preamble set, the first SSB belongs to the SSB burst set, and the receiving beam of the first SSB corresponds to the transmitting beam of the first PRACH.

[0489] As an embodiment, the technical feature "the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the random access preamble carried by the first PRACH is one of the multiple consecutive preambles associated with the first SSB included in the second preamble set, the first SSB belongs to the SSB burst set, and the receiving spatial filter of the first SSB corresponds to the sending spatial filter of the first PRACH.

[0490] As an embodiment, the technical feature "when the first preamble set list does not include the preamble set associated with the first feature combination, the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: when the first preamble set list includes the preamble set associated with the first feature combination, the preamble sequence carried by the first PRACH belongs to the first preamble set; otherwise, the preamble sequence carried by the first PRACH belongs to the second preamble set.

[0491] As an embodiment, the technical feature "when the first preamble set list does not include the preamble set associated with the first feature combination, the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the fact that the first preamble set list does not include the preamble set associated with the first feature combination is a condition that the preamble sequence carried by the first PRACH belongs to the second preamble set.

[0492] As an embodiment, the technical feature "when the first preamble set list does not include the preamble set associated with the first feature combination, the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the fact that the first preamble set list does not include the preamble set associated with the first feature combination is related to the fact that the preamble sequence carried by the first PRACH belongs to the second preamble set.

[0493] As an embodiment, the technical characteristic "when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to the second preamble set" includes: the first preamble set list does not include the preamble set associated with the first characteristic combination is one of the multiple conditions that the preamble sequence carried by the first PRACH belongs to the second preamble set.

[0494] As an embodiment, the technical feature "the second leading set is a leading set in the first leading set list that is not associated with any characteristics or a leading set outside the first leading set list" includes: the second leading set is a leading set in the first leading set list that does not correspond to any characteristics.

[0495] As an embodiment, the technical feature "the second leading set is a leading set in the first leading set list that is not associated with any characteristics or a leading set outside the first leading set list" includes: the second leading set is a leading set in which the corresponding characteristics in the first leading set list are all set to false.

[0496] As an embodiment, the technical feature "the second leading set is a leading set in the first leading set list that is not associated with any characteristics or a leading set outside the first leading set list" includes: the second leading set is a leading set associated with the first characteristic combination outside the first leading set list.

[0497] As an embodiment, the technical feature "the second leading set is a leading set in the first leading set list that is not associated with any characteristics or one of the leading sets outside the first leading set list" includes: the second leading set is a leading set in any one of the multiple leading set lists outside the first leading set list.

[0498] As an embodiment, the technical feature "the second leading set is a leading set in the first leading set list that is not associated with any characteristics or one of the leading sets outside the first leading set list" includes: the second leading set is a leading set associated with the first characteristic combination in any one of the multiple leading set lists outside the first leading set list.

[0499] Example 9

[0500] Embodiment 9 illustrates a schematic diagram of the symbol type of at least one symbol included in the target RO in the time domain according to an embodiment of the present application, as shown in the attached figure. Fig. 9 As shown in the attached Fig. 9 In the embodiment, the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first value.

[0501] In Example 9, the symbol type of at least one symbol included in the time domain of the target RO in the present application depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value. The value of the first counter in the present application is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP in the present application is the RSRP for downlink path loss reference; the second information block in the present application indicates the first threshold and the first numerical value.

[0502] As an embodiment, the symbol type of at least one symbol included in the target RO in the time domain is judged according to the relationship between the first RSRP (reference signal received power) and the first threshold value and the relationship between the value of the first counter and the first numerical value, while supporting PRACH transmission on full-duplex symbols, the performance of PRACH transmission is guaranteed and greater flexibility is provided.

[0503] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: the symbol type of at least one symbol included in the target RO in the time domain is related to the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value.

[0504] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: the symbol type of at least one symbol included in the target RO in the time domain is related to the relationship between the first RSRP and the first threshold, and the symbol type of at least one symbol included in the target RO in the time domain is also related to the relationship between the value of the first counter and the first numerical value.

[0505] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value are used to jointly determine the symbol type of at least one symbol included in the target RO in the time domain.

[0506] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the first RSRP is greater than the first threshold and the value of the first counter is not greater than the first numerical value, the symbol type of at least one symbol included in the target RO in the time domain is a full-duplex symbol indicated as downlink by TDD uplink and downlink.

[0507] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the first RSRP is not greater than the first threshold, the symbol type of at least one symbol included in the target RO in the time domain is a non-full-duplex symbol or is indicated by the TDD uplink and downlink configuration as a flexible full-duplex symbol.

[0508] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the value of the first counter is greater than the first numerical value, the symbol type of at least one symbol included in the target RO in the time domain is a non-full-duplex symbol or is indicated by the TDD uplink and downlink configuration as a flexible full-duplex symbol.

[0509] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the value of the first counter is equal to the sum of the first numerical value plus 1, the symbol type of at least one symbol included in the target RO in the time domain is a non-full-duplex symbol or is indicated by the TDD uplink and downlink configuration as a flexible full-duplex symbol.

[0510] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the first RSRP is not greater than the first threshold, the symbol type of at least one symbol included in the target RO in the time domain is a flexible or uplink non-full-duplex symbol indicated by the TDD uplink and downlink configuration or a flexible full-duplex symbol indicated by the TDD uplink and downlink configuration.

[0511] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the value of the first counter is greater than the first numerical value, the symbol type of at least one symbol included in the target RO in the time domain is a flexible or uplink non-full-duplex symbol indicated by the TDD uplink and downlink configuration or a flexible full-duplex symbol indicated by the TDD uplink and downlink configuration.

[0512] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: when the value of the first counter is equal to the sum of the first numerical value plus 1, the symbol type of at least one symbol included in the target RO in the time domain is a flexible or uplink non-full-duplex symbol indicated by the TDD uplink and downlink configuration or a flexible full-duplex symbol indicated by the TDD uplink and downlink configuration.

[0513] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: the first RSRP is greater than the first threshold, and the value of the first counter is not greater than the first numerical value, which is a condition that the symbol type of at least one symbol included in the target RO in the time domain is a full-duplex symbol indicated as a downlink by TDD uplink and downlink.

[0514] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: the first RSRP is greater than the first threshold, and the value of the first counter is not greater than the first numerical value, which is one of the multiple conditions that the symbol type of at least one symbol included in the target RO in the time domain is a full-duplex symbol indicated as a downlink by TDD uplink and downlink.

[0515] As an embodiment, the technical feature "the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value" includes: the first RSRP is greater than the first threshold, and the value of the first counter is not greater than the first numerical value, which is a necessary condition for the symbol type of at least one symbol included in the target RO in the time domain to be indicated as a downlink full-duplex symbol by TDD uplink and downlink.

[0516] As an embodiment, the first threshold is a numerical value.

[0517] As an embodiment, the first threshold is a non-negative number.

[0518] As an embodiment, the unit of the first threshold is dB.

[0519] As an embodiment, the unit of the first threshold is dBm.

[0520] As an embodiment, the unit of the first threshold is mW.

[0521] As an embodiment, the unit of the first threshold is W.

[0522] As an embodiment, the first threshold is equal to the target threshold.

[0523] As an embodiment, the first threshold is not equal to the target threshold.

[0524] As an embodiment, the first threshold and the target threshold are independent.

[0525] As an embodiment, the first threshold and the target threshold are configured by two domains respectively.

[0526] As an embodiment, when the second information block indicates (or configures) the target threshold for the first characteristic combination, the first threshold is equal to the target threshold.

[0527] As an embodiment, when the second information block indicates (or configures) the target threshold for the first characteristic combination, the target threshold overrides the first threshold.

[0528] As an embodiment, when the second information block does not indicate (or configure) the target threshold for the first characteristic combination, the first threshold is not equal to the target threshold.

[0529] As an embodiment, when the second information block does not indicate (or configure) the target threshold for the first characteristic combination, the first threshold does not override the target threshold.

[0530] As an embodiment, the first counter is used to count the transmission of a random access preamble located on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0531] As an embodiment, the first counter is used to count consecutive transmissions of a random access preamble located on a full-duplex symbol indicated as downlink by a TDD uplink and downlink configuration.

[0532] As an embodiment, the value of the first counter increases by 1 each time.

[0533] As an embodiment, the value of the first counter is a positive integer.

[0534] As an embodiment, the first counter is a user equipment variable (UE variable).

[0535] As an embodiment, the first counter is a user equipment variable for a random access procedure.

[0536] As an embodiment, the first counter is a user equipment variable for a random access procedure located on a full-duplex symbol indicated as downlink by a TDD uplink and downlink configuration.

[0537] As an embodiment, the first counter is a random access preamble transmission counter of a random access procedure to which the first PRACH belongs, and is located on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0538] As an embodiment, the first counter is a variable "SBFD_PREAMBLE_TRANSMISSION_COUNTER".

[0539] As an embodiment, the value of the first counter is not greater than the sum of the first value plus 1.

[0540] As an embodiment, the first numerical value is a non-negative integer.

[0541] As an embodiment, the value of the first numerical value is greater than 1.

[0542] As an embodiment, the first value represents the maximum number of transmissions of the first PRACH on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0543] As an embodiment, the first value represents the maximum number of times the first PRACH is continuously sent on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0544] As an embodiment, the first numerical value is the value of the field "preambleTransMax-r19".

[0545] As an embodiment, the technical feature "the value of the first counter is equal to the count value of RO transmission PRACH located on a full-duplex symbol" includes: the value of the first counter is equal to the count value of RO transmission PRACH located on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0546] As an embodiment, the technical feature "the value of the first counter is equal to the count value of RO transmission PRACH located on a full-duplex symbol" includes: the first counter is used to count the RO transmission PRACH located on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0547] As an embodiment, the technical feature "the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol" includes: the value of the first counter is related to the count value of the RO transmission PRACH located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0548] As an embodiment, the technical feature "the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol" includes: the value of the first counter depends on the count value of the RO transmission PRACH located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0549] As an embodiment, the technical feature "the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol" includes: the count value of the RO transmission PRACH located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration is used to determine (or is used to calculate) the value of the first counter.

[0550] As an embodiment, the technical feature "the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol" includes: the value of the first counter is linearly related to the count value of the RO transmission PRACH located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0551] As an embodiment, the technical feature "the value of the first counter is equal to the count value of PRACH transmitted using RO located on a full-duplex symbol" includes: the value of the first counter is equal to the count value of PRACH continuously transmitted using RO located on a full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0552] As an embodiment, the technical feature "the value of the first counter is equal to the count value of PRACH transmitted using the RO located on the full-duplex symbol" includes: when PRACH is transmitted on the RO located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, the value of the first counter is equal to the sum of the value of the first counter plus one.

[0553] As an embodiment, the technical feature "the value of the first counter is equal to the count value of PRACH transmission using RO located on a full-duplex symbol" includes: the value of the first counter is equal to N, where N is a positive integer, and the N ROs used to transmit PRACH before the first PRACH transmission are all located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration.

[0554] As an embodiment, the technical feature "the value of the first counter is equal to the count value of PRACH transmitted using an RO located on a full-duplex symbol" includes: the value of the first counter is equal to N, where N is a positive integer, and N minus one located before the first PRACH transmission and the ROs used to transmit PRACH are all located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration.

[0555] As an embodiment, the technical feature "the value of the first counter is equal to the count value of PRACH transmitted using an RO located on a full-duplex symbol" includes: the value of the first counter is equal to N, where N is a positive integer, and the first N ROs used to transmit PRACH, including the first PRACH transmission, before the first PRACH transmission are all located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration.

[0556] As an embodiment, the technical feature "the value of the first counter is equal to the count value of PRACH transmission using an RO located on a full-duplex symbol" includes: the value of the first counter is equal to N, where N is a positive integer, and any of the N ROs used for transmitting PRACH, including the first PRACH transmission, located before the first PRACH transmission is not located on a non-full-duplex symbol indicated as uplink or flexible by the TDD uplink and downlink configuration, or a flexible full-duplex symbol indicated as by the TDD uplink and downlink configuration.

[0557] As an embodiment, the downlink path loss reference is a reference signal.

[0558] As an embodiment, the downlink path loss reference is a downlink reference signal used to determine path loss.

[0559] As an embodiment, the downlink path loss reference is CSI-RS (Channel State Information-Reference Signal) or SSB.

[0560] As an embodiment, the downlink path loss reference occupies CSI-RS resources.

[0561] As an embodiment, the downlink path loss reference occupies NZP (non-zero-power) CSI-RS resources.

[0562] As an embodiment, the technical feature "the first RSRP is an RSRP for a downlink path loss reference" includes: the first RSRP depends on an RSRP (reference signal received power) for the downlink path loss reference.

[0563] As an embodiment, the technical feature "the first RSRP is an RSRP for a downlink path loss reference" includes: the RSRP for the downlink path loss reference is used to determine (or is used to calculate) the first RSRP.

[0564] As an embodiment, the technical feature "the first RSRP is an RSRP for a downlink path loss reference" includes: the first RSRP is related to the RSRP for the downlink path loss reference.

[0565] As an embodiment, the technical feature "the first RSRP is an RSRP for a downlink path loss reference" includes: the first RSRP is linearly correlated with the RSRP for the downlink path loss reference.

[0566] As an embodiment, the technical feature "the first RSRP is an RSRP for downlink path loss reference" includes: the value of the first RSRP is equal to the value of the RSRP for the downlink path loss reference.

[0567] As an embodiment, the technical feature "the first RSRP is an RSRP for a downlink path loss reference" includes: a value of the first RSRP is equal to an RSRP value obtained based on a measurement of the downlink path loss reference.

[0568] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the second information block explicitly or implicitly indicates the first threshold and the first numerical value.

[0569] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: part or all of the second information block is used to explicitly or implicitly indicate the first threshold and the first numerical value.

[0570] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the second information block is used to determine the first threshold and the first numerical value.

[0571] As an embodiment, the technical feature "the second information block indicates the first threshold and the first value" includes: the first threshold and the first value depend on the second information block.

[0572] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the two fields included in the second information block respectively indicate the first threshold and the first numerical value.

[0573] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the value of a field included in the second information block is equal to the first threshold, and the value of another field included in the second information block is equal to the first numerical value.

[0574] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the value of the field "rsrp-ThresholdSSB-r19" included in the second information block is equal to the first threshold, and the value of the field "preambleTransMax-r19" included in the second information block is equal to the first numerical value.

[0575] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the first threshold is equal to the sum of a threshold and an offset value, the threshold is the value of the field "rsrp-ThresholdSSB-r19", and the second information block indicates the offset value.

[0576] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the first numerical value is equal to the sum of a numerical value and an offset value, the numerical value is the value of the field "preambleTransMax-r19", and the second information block indicates the offset value.

[0577] As an embodiment, the technical feature "the second information block indicates the first threshold and the first numerical value" includes: the first threshold is equal to the sum of a threshold and a first offset value, the one threshold is the value of the field "rsrp-ThresholdSSB-r19", and the second information block indicates the first offset value; the first numerical value is equal to the sum of a numerical value and a second offset value, the one numerical value is the value of the field "preambleTransMax-r19", and the second information block indicates the second offset value.

[0578] Example 10

[0579] Embodiment 10 illustrates a schematic diagram of mapping a first RO resource set and a synchronous broadcast signal according to an embodiment of the present application, as shown in the attached figure. Fig.10 As shown in the attached Fig.10 In the figure, each rectangle represents the transmission of a synchronous broadcast signal, the numbers #0, #1 and #2 represent the index values ​​of the synchronous broadcast signal, the upper dotted ellipse represents the RO in the first RO resource set located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration, and the lower dotted ellipse represents the RO in the first RO resource set located on the non-full-duplex symbol or the flexible full-duplex symbol indicated as uplink and downlink by the TDD uplink and downlink configuration.

[0580] In Embodiment 10, the RO located on the full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the first RO resource set in the present application and the RO located on the non-full-duplex symbol or the flexible full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the first RO resource set are respectively mapped to the synchronized broadcast signal.

[0581] As an embodiment, the ROs in the first RO resource set that are located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configurations and the ROs in the first RO resource set that are located on non-full-duplex symbols or flexible full-duplex symbols indicated as downlink by the TDD uplink and downlink configurations are mapped separately from the synchronized broadcast signal, thereby improving the PRACH capacity while avoiding adverse effects on other users and ensuring backward compatibility.

[0582] As an embodiment, the TDD uplink / downlink configuration is an uplink / downlink TDD configuration used to determine a time slot format.

[0583] As an embodiment, the TDD uplink and downlink configuration at least includes configuration information indicating which symbols in a periodic time window are downlink symbols, which symbols are flexible symbols, and which symbols are uplink symbols.

[0584] As an embodiment, the TDD uplink and downlink configuration is a higher-layer configuration that at least includes indication information of the link direction of the symbol.

[0585] As an embodiment, the TDD uplink and downlink configuration is an RRC layer configuration.

[0586] As an embodiment, the TDD uplink and downlink configuration is a higher layer configuration.

[0587] As an embodiment, the TDD uplink and downlink configuration also includes indication information of the adopted subcarrier spacing.

[0588] As an embodiment, the TDD uplink and downlink configuration also includes indication information of the length of the adopted periodic time window.

[0589] As an embodiment, the TDD uplink and downlink configuration includes part or all of the fields in the IE "tdd-UL-DL-ConfigCommon".

[0590] As an embodiment, the TDD uplink and downlink configuration includes part or all of the fields in the IE "tdd-UL-DL-ConfigDedicated".

[0591] As an embodiment, the non-full-duplex symbol is a symbol other than the full-duplex symbol.

[0592] As an embodiment, the non-full-duplex symbol is a symbol that is not indicated or configured as a full-duplex symbol by the first information block.

[0593] As an embodiment, the non-full-duplex symbol is a symbol indicated as uplink by TDD uplink and downlink configuration.

[0594] As an embodiment, the non-full-duplex symbol is indicated as an uplink or flexible symbol by TDD uplink and downlink configuration.

[0595] As an embodiment, the non-full-duplex symbol is a symbol that can be mapped by a legacy RO.

[0596] As an embodiment, the non-full-duplex symbol is a symbol indicated as uplink or flexible by "tdd-UL-DL-ConfigCommon" and configured as other than a SBFD symbol.

[0597] As an embodiment, the non-full-duplex symbol is a symbol that is not indicated or configured as a full-duplex symbol by the first information block, and is indicated as an uplink or flexible symbol by the TDD uplink and downlink configuration.

[0598] As an embodiment, the non-full-duplex symbol is a symbol that is not indicated or configured as a full-duplex symbol by the first information block, and is indicated as a downlink symbol by the TDD uplink and downlink configuration.

[0599] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are respectively mapped to the synchronized broadcast signal" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are independently mapped to the synchronized broadcast signal.

[0600] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by TDD uplink and downlink configuration are respectively mapped with synchronous broadcast signals" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by TDD uplink and downlink configuration or flexible full-duplex symbols indicated by TDD uplink and downlink configuration are respectively mapped with synchronous broadcast signals within a time window. As a subsidiary embodiment of the above embodiment, the advantage of doing so is to follow the existing design of association period and reduce the standard workload.

[0601] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by TDD uplink and downlink configuration are respectively mapped with synchronized broadcast signals" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by TDD uplink and downlink configuration or flexible full-duplex symbols indicated by TDD uplink and downlink configuration are respectively mapped with synchronized broadcast signals in their respective time windows. As a subsidiary embodiment of the above embodiment, the benefit of doing so is that an independent association period is adopted for ROs in downlink full-duplex symbols, which improves flexibility and optimizes PRACH capacity performance.

[0602] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are respectively mapped to synchronized broadcast signals" includes: the mapping of ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and synchronized broadcast signals and the mapping of ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration and synchronized broadcast signals do not affect each other.

[0603] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are each mapped to a synchronized broadcast signal" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are each mapped to an index of the synchronized broadcast signal.

[0604] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are each mapped to a synchronized broadcast signal" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are each mapped according to the same sorting rule and index of the synchronized broadcast signal.

[0605] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration are respectively mapped to the synchronized broadcast signal" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration are respectively sorted independently and then respectively mapped to the synchronized broadcast signal.

[0606] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are respectively mapped to the synchronized broadcast signal" includes: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration are associated with the synchronized broadcast signal in sequence according to a given order, and ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated by the TDD uplink and downlink configuration are also associated with the synchronized broadcast signal in sequence according to a given order.

[0607] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration are respectively mapped to the synchronized broadcast signal" includes: the synchronized broadcast signal index and the ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration are mapped in sequence according to the mapping order of first the leading index in one RO, then the frequency resource index of the frequency-divided RO, then the time domain resource index of the time-divided RO in a PRACH time slot, and finally the index of the PRACH time slot; the synchronized broadcast signal index and the ROs in the first RO resource set located on non-full-duplex symbols indicated as uplink or flexible by the TDD uplink and downlink configuration or flexible full-duplex symbols indicated as uplink and downlink by the TDD uplink and downlink configuration are mapped in sequence according to the mapping order of first the leading index in one RO, then the frequency resource index of the frequency-divided RO, then the time domain resource index of the time-divided RO in a PRACH time slot, and finally the index of the PRACH time slot.

[0608] As an embodiment, the technical feature "ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration are mapped to the synchronized broadcast signal respectively" includes: the synchronized broadcast signal is mapped according to the index of 0, 1... and the ROs in the first RO resource set located on full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration are mapped according to the leading index in one RO, then according to the frequency resource index of the frequency-divided RO, and then according to a PRAC The time domain resource index of the time-divided RO in the H time slot is finally mapped in sequence according to the mapping order of the index of the PRACH time slot; the synchronous broadcast signal index is mapped in sequence according to 0, 1... and the RO in the first RO resource set located on the uplink or flexible non-full-duplex symbol indicated by the TDD uplink and downlink configuration or the flexible full-duplex symbol indicated by the TDD uplink and downlink configuration according to the leading index in an RO, then according to the frequency resource index of the frequency-divided RO, and then according to the time domain resource index of the time-divided RO in a PRACH time slot, and finally according to the mapping order of the index of the PRACH time slot.

[0609] Embodiment 11

[0610] Embodiment 11 illustrates a schematic diagram of the relationship between the first characteristic combination and the full-duplex characteristic according to an embodiment of the present application, as shown in the attached figure. Fig.11 As shown in the attached Fig.11In the embodiment, starting from S1100, in S1101, when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first feature combination only includes features other than the full-duplex feature, and in S1102, when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first feature combination may include the full-duplex feature.

[0611] In Example 11, when the target RO in the present application includes at least one full-duplex symbol in the time domain that is indicated as a downlink full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination in the present application only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

[0612] As an embodiment, the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, which implies that the terminal supports the full-duplex feature. Therefore, the first feature combination only includes features other than the full-duplex feature, which not only ensures the random access performance but also simplifies the design and avoids excessive signaling overhead.

[0613] As an embodiment, the technical feature "when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic" includes: when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination does not include the full-duplex characteristic.

[0614] As an embodiment, the technical feature "when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic" includes: the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, which is a condition that the first characteristic combination only includes characteristics other than the full-duplex characteristic.

[0615] As an embodiment, the technical feature "when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic" includes: the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, which is a valid condition for the first characteristic combination to include only characteristics other than the full-duplex characteristic.

[0616] As an embodiment, the technical feature "when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic" includes: the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, which is one of the multiple conditions that the first characteristic combination only includes characteristics other than the full-duplex characteristic.

[0617] As an embodiment, the technical feature "when the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, the first characteristic combination only includes characteristics other than the full-duplex characteristic" includes: the target RO includes at least one full-duplex symbol indicated as downlink by the TDD uplink and downlink configuration in the time domain, which is a necessary condition for the first characteristic combination to include only characteristics other than the full-duplex characteristic.

[0618] As an embodiment, the technical feature "when the target RO includes non-full-duplex symbols in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first feature combination may include a full-duplex feature" includes, when the target RO includes non-full-duplex symbols in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first feature combination includes a full-duplex feature.

[0619] As an embodiment, the technical feature "When the target RO includes non-full-duplex symbols in the time domain or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics" includes that when the target RO includes non-full-duplex symbols in the time domain that are indicated as flexible or uplink by the TDD uplink and downlink configuration or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination must include full-duplex characteristics.

[0620] As an embodiment, the technical feature "When the target RO includes non-full-duplex symbols in the time domain or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics" includes that when the target RO includes non-full-duplex symbols in the time domain that are indicated as flexible or uplink by the TDD uplink and downlink configuration or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics.

[0621] As an embodiment, the technical feature "when the target RO includes non-full-duplex symbols in the time domain or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics" includes that the target RO includes non-full-duplex symbols in the time domain indicated as flexible or uplink by the TDD uplink and downlink configuration or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, which is a condition that the first feature combination may include full-duplex characteristics.

[0622] As an embodiment, the technical feature "when the target RO includes non-full-duplex symbols in the time domain or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics" includes that the target RO includes non-full-duplex symbols in the time domain indicated as flexible or uplink by the TDD uplink and downlink configuration or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, which is a valid condition that the first feature combination may include full-duplex characteristics.

[0623] As an embodiment, the technical feature "when the target RO includes non-full-duplex symbols in the time domain or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics" includes that the target RO includes non-full-duplex symbols in the time domain that are indicated as flexible or uplink by the TDD uplink and downlink configuration or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, which is one of the multiple conditions under which the first feature combination may include full-duplex characteristics.

[0624] As an embodiment, the technical feature "when the target RO includes non-full-duplex symbols in the time domain or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, the first feature combination may include full-duplex characteristics" includes that the target RO includes non-full-duplex symbols in the time domain indicated as flexible or uplink by the TDD uplink and downlink configuration or is indicated as flexible full-duplex symbols by the TDD uplink and downlink configuration, which is a necessary condition for the first feature combination to include full-duplex characteristics.

[0625] Example 12

[0626] Embodiment 12 illustrates a structural block diagram of a processing device used in a terminal according to an embodiment of the present application, as shown in the attached Fig.12 As shown in the attached Fig.12 In the embodiment, the processing device 1200 in the terminal includes a first receiver 1201 and a first transmitter 1202. The first receiver 1201 includes the Figure 4 The transmitter / receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490 in the present application; the first transmitter 1202 includes Figure 4The transmitter / receiver 456 (including the antenna 460), the transmit processor 455 and the controller / processor 490.

[0627] In embodiment 12, a first receiver 1201 receives a first information block and a second information block, wherein the first information block indicates a symbol type of at least one symbol, and the second information block indicates a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists includes at least one preamble set; a first transmitter 1202 sends a first PRACH in a target RO, and the target RO belongs to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, and the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, and the first preamble set is associated with a first characteristic combination, and the first characteristic combination includes at least one characteristic; the multiple preamble set lists correspond to multiple symbol types respectively, and the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0628] As an embodiment, the first preamble set includes a plurality of consecutive preambles associated with a synchronized broadcast signal, and the second information block indicates an index value of a starting preamble of the plurality of consecutive preambles included in the first preamble set.

[0629] As an embodiment, the first characteristic combination includes a full-duplex characteristic, the second information block indicates a target threshold for the first characteristic combination, and the terminal chooses to initiate random access on a full-duplex symbol depending on a measured RSRP value exceeding the target threshold.

[0630] As an embodiment, when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a second preamble set, and the second preamble set is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

[0631] As an embodiment, the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value, the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0632] As an embodiment, the ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configurations and the ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as uplink and downlink by TDD configurations are respectively mapped to synchronized broadcast signals.

[0633] As an embodiment, when the target RO includes at least one full-duplex symbol in the time domain that is indicated as a downlink full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

[0634] Embodiment 13

[0635] Embodiment 13 illustrates a structural block diagram of a processing device used in a base station according to an embodiment of the present application, as shown in the attached figure. Fig.13 As shown in the attached Fig.13 In the present application, the processing device 1300 in the base station includes a second transmitter 1301 and a second receiver 1302. The second transmitter 1301 includes Figure 4 The transmitter / receiver 416 (including the antenna 460), the transmission processor 415 and the controller / processor 440 in the second receiver 1302 include the attached Figure 4 The transmitter / receiver 416 (including the antenna 460), the receiving processor 412 and the controller / processor 440 in the embodiment.

[0636] In embodiment 13, the second transmitter 1301 sends a first information block and a second information block, the first information block indicates a symbol type of at least one symbol, the second information block indicates a first RO resource set and multiple preamble set lists, each preamble set list in the multiple preamble set lists includes at least one preamble set; the second receiver 1302 receives a first PRACH in a target RO, and the target RO belongs to the first RO resource set; wherein the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first characteristic combination, and the first characteristic combination includes at least one characteristic; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is a first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

[0637] As an embodiment, the first preamble set includes a plurality of consecutive preambles associated with a synchronized broadcast signal, and the second information block indicates an index value of a starting preamble of the plurality of consecutive preambles included in the first preamble set.

[0638] As an embodiment, the first characteristic combination includes a full-duplex characteristic, the second information block indicates a target threshold for the first characteristic combination, and the terminal chooses to initiate random access on a full-duplex symbol depending on a measured RSRP value exceeding the target threshold.

[0639] As an embodiment, when the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a second preamble set, and the second preamble set is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

[0640] As an embodiment, the symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value, the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0641] As an embodiment, the ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configurations and the ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as uplink and downlink by TDD configurations are respectively mapped to synchronized broadcast signals.

[0642] As an embodiment, when the target RO includes at least one full-duplex symbol in the time domain that is indicated as a downlink full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

[0643] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The terminal or base station or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft, test devices, test equipment. Equipment, test instruments and other equipment. The base station equipment or base station or network side equipment in the present application includes but is not limited to macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRPs, relay satellites, satellite base stations, air base stations, test devices, test equipment, test instruments and other equipment.

[0644] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A method used in a terminal, characterized in that: include: receiving a first information block and a second information block, wherein the first information block indicates a symbol type of at least one symbol, and the second information block indicates a first RO resource set and a plurality of preamble set lists, each preamble set list in the plurality of preamble set lists including at least one preamble set; Sending a first PRACH in a target RO, where the target RO belongs to the first RO resource set; Among them, the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, and the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is the first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

2. The method according to claim 1, characterized in that The first preamble set includes a plurality of consecutive preambles associated with one synchronized broadcast signal, and the second information block indicates an index value of a starting preamble of the plurality of consecutive preambles included in the first preamble set.

3. The method according to claim 1 or 2, characterized in that The first characteristic combination includes a full-duplex characteristic, the second information block indicates a target threshold for the first characteristic combination, and the terminal selects to initiate random access on a full-duplex symbol depending on a measured RSRP value exceeding the target threshold.

4. The method according to any one of claims 1 to 3, characterized in that: When the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a second preamble set, and the second preamble set is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

5. The method according to any one of claims 1 to 4, characterized in that: The symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value, the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

6. The method according to any one of claims 1 to 5, characterized in that: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configurations and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as downlink by TDD uplink and downlink configurations are respectively mapped to synchronized broadcast signals.

7. The method according to any one of claims 1 to 6, characterized in that: When the target RO includes at least one full-duplex symbol in the time domain that is indicated as a downlink full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

8. A terminal, characterized in that: The terminal includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the terminal to execute the method described in any one of claims 1-7.

9. A method used in a base station, characterized in that: include: Sending a first information block and a second information block, wherein the first information block indicates a symbol type of at least one symbol, and the second information block indicates a first RO resource set and a plurality of preamble set lists, wherein each preamble set list in the plurality of preamble set lists includes at least one preamble set; receiving a first PRACH in a target RO, the target RO belonging to the first RO resource set; Among them, the preamble sequence carried by the first PRACH belongs to a first preamble set, the first preamble set is a preamble set included in a preamble set list in the multiple preamble set lists, the first preamble set is associated with a first feature combination, and the first feature combination includes at least one feature; the multiple preamble set lists correspond to multiple symbol types respectively, the preamble set list to which the first preamble set belongs is the first preamble set list, and the first preamble set list is a preamble set list in the multiple preamble set lists corresponding to the symbol type of at least one symbol included in the target RO in the time domain.

10. The method according to claim 9, characterized in that The first preamble set includes a plurality of consecutive preambles associated with one synchronized broadcast signal, and the second information block indicates an index value of a starting preamble of the plurality of consecutive preambles included in the first preamble set.

11. The method according to claim 9 or 10, characterized in that The first characteristic combination includes a full-duplex characteristic, the second information block indicates a target threshold for the first characteristic combination, and the sender of the first PRACH selects to initiate random access on a full-duplex symbol depending on a measured RSRP value exceeding the target threshold.

12. The method according to any one of claims 9 to 11, characterized in that: When the first preamble set list does not include the preamble set associated with the first characteristic combination, the preamble sequence carried by the first PRACH belongs to a second preamble set, and the second preamble set is one of a preamble set in the first preamble set list that is not associated with any characteristics or a preamble set outside the first preamble set list.

13. The method according to any one of claims 9 to 12, characterized in that: The symbol type of at least one symbol included in the target RO in the time domain depends on the relationship between the first RSRP and the first threshold and the relationship between the value of the first counter and the first numerical value, the value of the first counter is equal to the count value of the RO transmission PRACH located on the full-duplex symbol; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

14. The method according to any one of claims 9 to 13, characterized in that: ROs in the first RO resource set located on full-duplex symbols indicated as downlink by TDD uplink and downlink configurations and ROs in the first RO resource set located on non-full-duplex symbols or flexible full-duplex symbols indicated as downlink by TDD uplink and downlink configurations are respectively mapped to synchronized broadcast signals.

15. The method according to any one of claims 9 to 14, characterized in that: When the target RO includes at least one full-duplex symbol in the time domain that is indicated as a downlink full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination only includes characteristics other than the full-duplex characteristic; when the target RO includes a non-full-duplex symbol in the time domain or is indicated as a flexible full-duplex symbol by the TDD uplink and downlink configuration, the first characteristic combination may include the full-duplex characteristic.

16. A base station, characterized in that: The base station comprises: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code comprises computer instructions, and the one or more processors call the computer instructions so that the base station executes the method as described in any one of claims 9-15.

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