Method and apparatus in communication node for wireless communication

Abstract

The invention discloses a method and an apparatus in a communication node for wireless communication. A communication node receives a first information block and a second information block, the first information block indicating at least one full duplex symbol, the second information block indicating a first RO set and a second RO set, ROs in the first RO set occupying at least one full duplex symbol in a time domain; the communication node receives the first SSB and sends the first PRACH in the target RO; wherein the target RO is one RO which is included in a target RO set and is associated with the first SSB; the target RO set comprises a relation between a first RSRP and a first threshold value which the first RO set depends on and a relation between a value of a first counter and a first numerical value, and the value of the first counter is equal to a count value for transmitting the PRACH by adopting the RO in the first RO set; the second information block indicates the first threshold and the first value. The random access performance is improved.

Description

Technical Field

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

[0002] The application scenarios of future wireless communication systems are becoming increasingly diverse, and different scenarios place varying performance requirements on the systems. To meet the diverse performance demands of various application scenarios, the 3GPP (3rd Generation Partnership Project) RAN (Radio Access Network) Plenary #72 decided to conduct research on New Radio (NR) (or 5G). The WI (Work Item) for New Radio (NR) technology was approved at 3GPP RAN #75, initiating standardization work on NR. The 3GPP RAN #86 plenary decided to initiate work on the SI (Study Item) and WI (Work Item) for NR Rel-17, and the 3GPP RAN #94e plenary approved the SI and WI for NR Rel-18. The 3GPP RAN #102 plenary decided to initiate work on the SI and WI for NR Rel-19.

[0003] NR Rel-19 includes Wi-Fi that supports non-overlapping sub-band full-duplex (SBFD). Non-overlapping sub-band full-duplex is also one of the technologies that 6G may support. Summary of the Invention

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

[0005] In response to 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, scenarios where the link direction changes, or other scenarios that support multi-level configuration of transmission directions, or base stations or user equipment with stronger capabilities, such as scenarios that support full-duplex at the same frequency, or for different application scenarios, such as eMBB, URLLC, non-terrestrial networks, synaesthesia integrated networks, smart metasurfaces, and terahertz networks, similar technical effects can also be achieved. In addition, the use of a unified solution for different scenarios (including but not limited to scenarios of eMBB, URLLC, non-terrestrial networks, synaesthesia integrated networks, smart metasurfaces, and terahertz networks) or different application parameters can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in the embodiments of the terminal device of the present application can be applied to the base station device, 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 at least one full-duplex symbol, and the second information block indicates a first RO set and a second RO set, wherein the ROs in the first RO set occupy at least one full-duplex symbol in the time domain;

[0008] Receive the first SSB and send the first PRACH in the target RO;

[0009] The target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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, and the value of the first counter is equal to the count value of PRACH transmission using the RO in the first RO set; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0010] As an embodiment, whether the target RO (Physical Random Access Channel Occasion) set includes the first RO set is determined based on 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 (Physical Random Access Channel) transmission is guaranteed, and greater flexibility is provided.

[0011] According to one aspect of the present application, the above method is characterized in that, for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set; otherwise, the target RO set only includes the second RO set.

[0012] According to one aspect of the present application, the above method is characterized in that the second information block indicates a second value; when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value, and the second value is a maximum number of transmissions of a random access preamble.

[0013] According to one aspect of the present application, the above method is characterized in that when the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time is equal to a random value between 0 and a maximum backoff time, and the maximum backoff time is configured or predefined.

[0014] According to one aspect of the present application, the above method is characterized in that the value of the second counter is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH depends on the target reception power of the first PRACH; the target reception power depends on the target reception power of the previous random access preamble.

[0015] According to one aspect of the present application, the method is characterized by receiving a third information block, wherein the third information block indicates a first RO pool, and ROs located on non-full-duplex symbols in the first RO pool belong to the second RO set.

[0016] According to one aspect of the present application, the above method is characterized in that the ROs in the first RO set and the ROs in the second RO set are respectively mapped to a synchronous broadcast signal.

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

[0018] The memory is coupled to the one or more processors, and is used to store computer program codes. The computer program codes include computer instructions. 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, where the first information block indicates at least one full-duplex symbol, and the second information block indicates a first RO set and a second RO set, where the ROs in the first RO set occupy at least one full-duplex symbol in the time domain;

[0021] Sending a first SSB and receiving a first PRACH in a target RO;

[0022] The target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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, and the value of the first counter is equal to the count value of PRACH transmission using the RO in the first RO set; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0023] According to one aspect of the present application, the above method is characterized in that, for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set; otherwise, the target RO set only includes the second RO set.

[0024] According to one aspect of the present application, the above method is characterized in that the second information block indicates a second value; when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value, and the second value is a maximum number of transmissions of a random access preamble.

[0025] According to one aspect of the present application, the above method is characterized in that when the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time is equal to a random value between 0 and a maximum backoff time, and the maximum backoff time is configured or predefined.

[0026] According to one aspect of the present application, the above method is characterized in that the value of the second counter is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH depends on the target reception power of the first PRACH; the target reception power depends on the target reception power of the previous random access preamble.

[0027] According to one aspect of the present application, the method is characterized by sending a third information block, wherein the third information block indicates a first RO pool, and ROs located on non-full-duplex symbols in the first RO pool belong to the second RO set.

[0028] According to one aspect of the present application, the above method is characterized in that the ROs in the first RO set and the ROs in the second RO set are respectively mapped to a synchronous broadcast signal.

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

[0030] The memory is coupled to the one or more processors, and is configured 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 example, 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 upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

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

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

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

[0039] Figure 4 A schematic diagram showing a first communication node device and a second communication node device 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 target RO set in an initial random access process according to an embodiment of the present application is shown;

[0042] Figure 7 A schematic diagram illustrating a target RO set when the value of the first counter is equal to the sum of the first value plus 1 according to an embodiment of the present application;

[0043] Figure 8 A schematic diagram showing a first backoff time according to an embodiment of the present application is shown;

[0044] Figure 9 A schematic diagram showing a value of a second counter according to an embodiment of the present application;

[0045] Figure 10 shows a schematic diagram of a first RO tank according to one embodiment of the present application;

[0046] Figure 11 A schematic diagram showing mapping of a first RO set and a second RO set to a synchronous broadcast signal according to an embodiment of the present application is shown;

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

[0048] Figure 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 and features in the embodiments of the present application can be combined with each other in any way.

[0050] Example 1

[0051] Embodiment 1 illustrates a flowchart 100 of a first information block, a second information block, a first SSB, and a first PRACH according to an embodiment of the present application, as shown in the attached figure. 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 temporal relationship 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 at least one full-duplex symbol, and the second information block indicates a first RO set and a second RO set, and the ROs in the first RO set occupy at least one full-duplex symbol in the time domain; the terminal in the present application receives a first SSB in step 102 and sends a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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 using the RO in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0053] As an embodiment, the first information block includes part or all of the fields included in a SIB.

[0054] As an embodiment, the first information block is cell common (Cell Common).

[0055] As an embodiment, the first information block is cell specific.

[0056] As an embodiment, the first information block is group common.

[0057] As an embodiment, the first information block is user equipment specific (UE specific or UE dedicated).

[0058] As an embodiment, the first information block is configured per subband (per subband).

[0059] As an embodiment, the first information block is configured per bandwidth part (BWP, bandwidth Part) (Per BWP).

[0060] As an embodiment, the first information block includes part or all of the fields in IE "SBFDConfigDedicated-r19".

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

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

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

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

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

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

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

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

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

[0070] As an embodiment, the first information block includes part or all of the fields in the IE "TDD-UL-DL-ConfigCommon".

[0071] As an embodiment, the first information block is used to configure SBFD (Subband non-overlapping Full Duplex) time slots or symbols.

[0072] As an embodiment, the first information block is used to configure a time slot or symbol supporting full duplex.

[0073] As an embodiment, the first information block configures an uplink subband (UL subband) and a downlink subband (DL subband) of SBFD.

[0074] As an embodiment, the second information block includes part or all of the fields included in a SIB.

[0075] As an embodiment, the second information block is cell common (Cell Common).

[0076] As an embodiment, the second information block is cell specific.

[0077] As an embodiment, the second information block is group common.

[0078] As an embodiment, the second information block is configured per subband (per subband).

[0079] As an embodiment, the second information block is configured per carrier (per carrier).

[0080] As an embodiment, the second information block is configured per bandwidth part (BWP, bandwidth Part) (Per BWP).

[0081] As an embodiment, the second information block includes part or all of the fields in IE "SIB1".

[0082] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfigCommon".

[0083] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfigCommonSIB".

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

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

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

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

[0088] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfigCommon-r19".

[0089] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfig-r19".

[0090] As an embodiment, the full-duplex symbol is a SBFD symbol.

[0091] As an embodiment, the full-duplex symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0092] As an embodiment, the full-duplex symbol is a time-domain symbol configured with SBFD.

[0093] As an embodiment, the full-duplex symbol is a time domain symbol configured by the SBFD subband in the time domain.

[0094] As an embodiment, the full-duplex symbol is a time-domain symbol supporting full-duplex.

[0095] As an embodiment, the full-duplex symbol is a time-domain symbol applicable to SBFD.

[0096] As an embodiment, the full-duplex symbol is a time domain symbol capable of simultaneous uplink transmission and downlink transmission.

[0097] 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).

[0098] 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.

[0099] As an embodiment, the full-duplex symbol is a time-domain symbol indicated (or provided) by signaling for configuring SBFD.

[0100] 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”.

[0101] As an embodiment, only downlink symbols are considered, which simplifies system design.

[0102] 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".

[0103] As an embodiment, the full-duplex symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" and configured (or indicated) as an SBFD symbol, or a symbol indicated as flexible by "tdd-UL-DL-ConfigCommon" and configured (or indicated) as an SBFD symbol.

[0104] 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.

[0105] As an embodiment, only “tdd-UL-DL-ConfigCommon” is considered, which simplifies the design and reduces the workload of standards.

[0106] As an embodiment, both downlink and flexible symbols are taken into consideration, thereby expanding configuration flexibility.

[0107] As an embodiment, the non-full-duplex symbol is a symbol other than the full-duplex symbol.

[0108] 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.

[0109] As an embodiment, the non-full-duplex symbol is a symbol indicated as uplink by TDD uplink and downlink configuration.

[0110] As an embodiment, the non-full-duplex symbol is indicated as an uplink or flexible symbol by TDD uplink and downlink configuration.

[0111] As an embodiment, the non-full-duplex symbol is a symbol that can be mapped by a legacy RO.

[0112] As an embodiment, the non-full-duplex symbol is a symbol indicated as downlink by "tdd-UL-DL-ConfigCommon" and configured as a symbol other than an SBFD symbol.

[0113] 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.

[0114] 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 flexible symbol by the TDD uplink and downlink configuration.

[0115] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block explicitly or implicitly indicates at least one full-duplex symbol.

[0116] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: all or part of the first information block is used to explicitly or implicitly indicate at least one full-duplex symbol.

[0117] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the position or index of at least one full-duplex symbol in the time domain depends on the first information block.

[0118] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the symbol indicated (or provided) by the first information block is a full-duplex symbol.

[0119] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: a symbol that overlaps with the symbol indicated (or provided) by the first information block in the time domain is a full-duplex symbol.

[0120] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: part or all of the cell-specific parameters in the first information block indicate at least one full-duplex symbol.

[0121] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates at least one downlink symbol or flexible symbol indicated by the TDD uplink and downlink configuration as a full-duplex symbol.

[0122] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the downlink symbol indicated (or provided) by the first information block and indicated by the TDD uplink and downlink configuration is a full-duplex symbol.

[0123] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the symbol that is fully or partially overlapped in the time domain with the symbol indicated (or provided) by the first information block and is indicated as downlink by the TDD uplink and downlink configuration is a full-duplex symbol.

[0124] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates the distribution of full-duplex symbols in the time domain.

[0125] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates multiple full-duplex symbols.

[0126] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates the distribution of SBFD symbols.

[0127] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates a period of a set of full-duplex symbols.

[0128] As a subsidiary embodiment of this embodiment, the period of the set of full-duplex symbols indicated by the first information block is equal to the period of the TDD uplink and downlink configuration.

[0129] As a subsidiary embodiment of this embodiment, the period of the set of full-duplex symbols indicated by the first information block is equal to the sum of the period of pattern 1 (pattern 1) and the period of pattern 2 (pattern 2) of the TDD uplink and downlink configuration.

[0130] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates the starting symbol of a set of full-duplex symbols.

[0131] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates the starting symbol of at least one full-duplex symbol and the number of symbols in the time domain.

[0132] As an embodiment, “the first information block indicates at least one full-duplex symbol” includes: the first information block indicates a time domain SLIV (start and length indicator value) of a full-duplex symbol.

[0133] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates the starting time slot and the number of time slots of the full-duplex symbol.

[0134] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block includes a SLIV, and the starting full-duplex symbol and the number of consecutive symbols included in a periodic time window are used to generate the SLIV included in the first information block.

[0135] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block includes a SLIV, the starting full-duplex symbol in a periodic time window and the number of consecutive symbols included are used to generate the SLIV included in the first information block, and the symbols among the included consecutive symbols that overlap with the downlink symbols indicated by "tdd-UL-DL-ConfigCommon" are full-duplex symbols.

[0136] As an embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block includes a SLIV for a reference subcarrier spacing, the starting full-duplex symbol for the reference subcarrier spacing in a periodic time window and the number of consecutive symbols included are used to generate the SLIV included in the first information block, and the symbols among the consecutive symbols that overlap with the downlink symbols indicated by tdd-UL-DL-ConfigCommon are full-duplex symbols. As a subsidiary embodiment of the above embodiment, the reference subcarrier spacing is equal to the subcarrier spacing adopted by the time slot format configuration.

[0137] As an embodiment, indicating full-duplex symbols through SLIV reduces signaling overhead while maintaining a certain degree of configuration flexibility, and is well compatible with the restriction of no more than two transition points between full-duplex symbols and non-full-duplex symbols.

[0138] In one embodiment, "the first information block indicates at least one full-duplex symbol" includes: the first information block indicates at least one full-duplex symbol from a periodic time window, the periodic time window includes multiple consecutive time-domain symbols, and the duration of the periodic time window is related to the period length configured in the time slot format. As a subsidiary embodiment of the above embodiment, the duration of the periodic time window is equal to the period length configured in the time slot format.

[0139] As an embodiment, the first RO set includes multiple ROs.

[0140] As an embodiment, any one RO in the first RO set is a PRACH (Physical Random Access Channel) Occasion.

[0141] As an embodiment, any one RO in the first RO set includes allocated or configured PRACH time-frequency resources.

[0142] As an embodiment, any one RO in the first RO set includes time-frequency resources occupied by one PRACH transmission.

[0143] As an embodiment, any two ROs in the first RO set are time-division multiplexed.

[0144] As an embodiment, any two ROs in the first RO set include the same time domain resources.

[0145] As an embodiment, there are two ROs in the first RO set that include different time domain resources.

[0146] As an embodiment, there are two frequency division multiplexed (FDM) PRACH opportunities in the first RO set.

[0147] As an embodiment, any two ROs in the first RO set are for the same preamble format. As a subsidiary embodiment of the above embodiment, the advantage of this is that the design is simple.

[0148] As an embodiment, the two ROs in the first RO set are for different preamble formats. As a subsidiary embodiment of the above embodiment, the benefit of doing so is to enhance flexibility.

[0149] As an embodiment, any RO in the first RO set only occupies full-duplex symbols in the time domain.

[0150] As an embodiment, any RO in the first RO set occupies only full-duplex symbols indicated as downlink by the TDD uplink and downlink configuration in the time domain.

[0151] As an embodiment, some ROs in the first RO 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.

[0152] As an embodiment, the second RO set includes multiple ROs.

[0153] As an embodiment, any one RO in the second RO set is a PRACH (Physical Random Access Channel) Occasion.

[0154] As an embodiment, any one RO in the second RO set includes allocated or configured PRACH time-frequency resources.

[0155] As an embodiment, any one RO in the second RO set includes time-frequency resources occupied by one PRACH transmission.

[0156] As an embodiment, any two ROs in the second RO set are time-division multiplexed.

[0157] As an embodiment, any two ROs in the second RO set include the same time domain resources.

[0158] As an embodiment, there are two ROs in the second RO set that include different time domain resources.

[0159] As an embodiment, there are two frequency division multiplexed (FDM) PRACH opportunities in the second RO set.

[0160] As an embodiment, any RO included in the second RO set is a legacy RO.

[0161] As an embodiment, any RO included in the second RO set is an RO outside the first RO set.

[0162] As an embodiment, any one RO included in the second RO set is an RO that does not overlap with the downlink indicated by "tdd-UL-DL-ConfigCommon".

[0163] As an embodiment, the second RO set is orthogonal to the first RO set.

[0164] As an embodiment, any two ROs in the second RO set are for the same preamble format. As a subsidiary embodiment of the above embodiment, the advantage of this is that the design is simple.

[0165] As an embodiment, any RO in the second RO set only occupies non-full-duplex symbols in the time domain.

[0166] As an embodiment, any RO in the second RO set occupies only uplink or flexible non-full-duplex symbols indicated by the TDD uplink configuration in the time domain.

[0167] As an embodiment, any RO in the second RO set occupies in the time domain uplink or flexible non-full-duplex symbols indicated by the TDD uplink configuration, or occupies flexible full-duplex symbols indicated by the TDD uplink configuration.

[0168] As an embodiment, “the second information block indicates the first RO set and the second RO set” includes: part or all of the second information block is used to explicitly or implicitly indicate the first RO set and the second RO set.

[0169] As an embodiment, “the second information block indicates the first RO set and the second RO set” includes: the first RO set and the second RO set are dependent on the second information block.

[0170] As an embodiment, “the second information block indicates the first RO set and the second RO set” includes: the second information block is used to determine the first RO set and the second RO set.

[0171] As an embodiment, "the second information block indicates the first RO set and the second RO set" includes: the second information block indicates the time-frequency resources included in at least one RO in the first RO set, and the second information block indicates the time-frequency resources included in at least one RO in the second RO set.

[0172] As an embodiment, "the second information block indicates the first RO set and the second RO set" includes: the second information block indicates the number of ROs in the first RO set that are frequency-divided in the same time domain resources, and the second information block indicates the number of ROs in the second RO set that are frequency-divided in the same time domain resources.

[0173] As an embodiment, "the second information block indicates the first RO set and the second RO set" includes: the second information block indicates the starting frequency domain resources of the lowest PRACH opportunity in the frequency domain in the first RO set, and the second information block indicates the starting frequency domain resources of the lowest PRACH opportunity in the frequency domain in the second RO set.

[0174] As an embodiment, “the second information block indicates the first RO set and the second RO set” includes: the second information block indicates a PRACH configuration index (configuration index), and the PRACH configuration index configures the first RO set and the second RO set.

[0175] As an embodiment, "the second information block indicates the first RO set and the second RO set" includes: the second information block indicates the PRACH configuration index, the RO configured by the PRACH configuration index and located on the full-duplex symbol belongs to the first RO set, and the RO configured by the PRACH configuration index and located on the non-full-duplex symbol belongs to the second RO set.

[0176] As an embodiment, "the second information block indicates a first RO set and a second RO set" includes: the second information block indicates a PRACH configuration index, the RO configured by the PRACH configuration index that overlaps with at least one full-duplex symbol indicated by the first information block belongs to the first RO set, and the RO configured by the PRACH configuration index that does not overlap with at least one full-duplex symbol indicated by the first information block belongs to the second RO set.

[0177] As an embodiment, "the second information block indicates a first RO set and a second RO set" includes: the second information block indicates a PRACH configuration index, the RO configured by the PRACH configuration index that overlaps with at least one full-duplex symbol indicated by the first information block belongs to the first RO set, and the RO configured by the PRACH configuration index that overlaps with at least one non-full-duplex symbol belongs to the second RO set.

[0178] As an embodiment, "the second information block indicates the first RO set and the second RO set" includes: the second information block indicates the PRACH configuration index, the RO configured by the PRACH configuration index that overlaps with at least one full-duplex symbol indicated by the first information block and at least one downlink symbol indicated by the TDD uplink and downlink configuration belongs to the first RO set, the RO configured by the PRACH configuration index that overlaps with at least one full-duplex symbol indicated by the first information block and at least one flexible symbol indicated by the TDD uplink and downlink configuration belongs to the second RO set, and the RO configured by the PRACH configuration index that overlaps with at least one non-full-duplex symbol also belongs to the second RO set.

[0179] As an embodiment, “ROs in the first RO set occupy at least one full-duplex symbol in the time domain” includes: any one RO in the first RO set occupies at least one full-duplex symbol in the time domain.

[0180] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: ROs in the first RO set occupy at least one full-duplex symbol indicated by the first information block in the time domain.

[0181] In one embodiment, the technical feature “ROs in the first RO set occupy at least one full-duplex symbol in the time domain” includes: ROs in the first RO set are mapped to at least one full-duplex symbol in the time domain.

[0182] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: the ROs in the first RO set are located in a full-duplex symbol in the time domain.

[0183] As an embodiment, the technical feature “ROs in the first RO set occupy at least one full-duplex symbol in the time domain” includes: the ROs in the first RO set include at least one full-duplex symbol in the time domain.

[0184] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: ROs in the first RO set overlap with at least one full-duplex symbol in the time domain.

[0185] As an embodiment, the technical feature “ROs in the first RO set occupy at least one full-duplex symbol in the time domain” includes: all ROs in the first RO set overlap in the time domain and at least one full-duplex symbol.

[0186] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: ROs in the first RO set fully or partially overlap between the time domain and at least one full-duplex symbol.

[0187] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: ROs in the first RO set occupy at least one full-duplex symbol in the time domain indicated as a downlink by the TDD uplink and downlink configuration.

[0188] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: ROs in the first RO set occupy at least one full-duplex symbol in the time domain indicated as downlink or flexible by the TDD uplink and downlink configuration.

[0189] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: there is overlap between the PRACH slot to which the ROs in the first RO set belong and at least one full-duplex symbol in the time domain.

[0190] As an embodiment, the technical feature "ROs in the first RO set occupy at least one full-duplex symbol in the time domain" includes: ROs in the first RO set overlap in the time domain and a time slot including at least one full-duplex symbol.

[0191] As an embodiment, the first SSB is transmitted via an air interface or a wireless interface.

[0192] As an embodiment, the first SSB is a baseband signal or a radio frequency signal.

[0193] As an embodiment, the first SSB is a Synchronization Signal Block.

[0194] As an embodiment, the first SSB is an SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block, a synchronization signal / physical broadcast channel block.

[0195] As an embodiment, the first SSB corresponds to an SSB index (Index).

[0196] As an embodiment, the index value corresponding to the first SSB is a non-negative integer.

[0197] As an embodiment, the first SSB is transmitted within one SSB cycle.

[0198] As an embodiment, the first SSB is transmitted in an SSB burst set.

[0199] As an embodiment, the first PRACH is transmitted via an air interface or a wireless interface.

[0200] As an embodiment, the first PRACH is a baseband signal or a radio frequency signal.

[0201] As an embodiment, the first PRACH is Msg1 (Message 1).

[0202] As an embodiment, the first PRACH is a PRACH (physical random access channel) or is used to transmit a PRACH.

[0203] As an embodiment, the first PRACH is generated by a preamble sequence.

[0204] As an embodiment, the first PRACH is generated by a pseudo-random sequence.

[0205] As an embodiment, the first PRACH is generated by a ZC (Zaddoff Chu) sequence.

[0206] As an embodiment, the first PRACH includes or carries a random access preamble or a random access preamble code.

[0207] As an embodiment, the first PRACH includes or carries a random access preamble sequence.

[0208] As an embodiment, the first PRACH is used for initial random access.

[0209] As an embodiment, "sending the first PRACH in the target RO" includes: the target RO is used to send (or is used to transmit) the first PRACH.

[0210] As an embodiment, "sending the first PRACH in the target RO" includes: the target RO carries information of the first PRACH.

[0211] As an embodiment, "sending a first PRACH in a target RO" includes: the first PRACH maps (or occupies) the time-frequency resources of the target RO.

[0212] As an embodiment, "sending a first PRACH in the target RO" includes: the first PRACH overlaps with time domain resources occupied by the target RO in the time domain.

[0213] As an embodiment, the target RO set includes multiple ROs.

[0214] As an embodiment, any one RO in the target RO set is a PRACH (Physical Random Access Channel) Occasion.

[0215] As an embodiment, any one RO in the target RO set includes allocated or configured PRACH time-frequency resources.

[0216] As an embodiment, any one RO in the target RO set includes time-frequency resources occupied by one PRACH transmission.

[0217] As an embodiment, any two ROs in the target RO set are time-division multiplexed.

[0218] As an embodiment, any two ROs in the target RO set include the same time domain resources.

[0219] As an embodiment, there are two ROs in the target RO set that include different time domain resources.

[0220] As an embodiment, there are two frequency division multiplexed (FDM) PRACH opportunities in the target RO set.

[0221] As an embodiment, any RO in the target RO set only occupies full-duplex symbols in the time domain.

[0222] As an embodiment, any RO in the target RO set only occupies non-full-duplex symbols in the time domain.

[0223] As an embodiment, any RO in the target RO set occupies only non-full-duplex symbols in the time domain, or occupies only non-full-duplex symbols in the time domain.

[0224] As an embodiment, some ROs in the target RO 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.

[0225] As an embodiment, any two ROs in the target RO set are for the same preamble format. As a subsidiary embodiment of the above embodiment, the advantage of this is that the design is simple.

[0226] As an embodiment, the two ROs in the target RO set are for different preamble formats. As a subsidiary embodiment of the above embodiment, the benefit of doing so is to enhance flexibility.

[0227] As an embodiment, the target RO set only includes ROs in the second RO set.

[0228] As an embodiment, the target RO set only includes ROs in the first RO set and the second RO set.

[0229] As an embodiment, the target RO set includes ROs other than the first RO set and the second RO set.

[0230] As an embodiment, “the target RO is an RO included in a target RO set and associated with the first SSB” includes: the target RO is an RO associated with the first SSB, and the target RO belongs to the target RO set.

[0231] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is an RO included in the target RO set and associated with the first SSB in the SSB-RO mapping cycle.

[0232] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is one of multiple ROs included in the target RO set and associated with the first SSB.

[0233] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is one of multiple ROs included in the target RO set and associated with the first SSB in the SSB-RO mapping cycle.

[0234] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is an RO in the target RO set whose adopted transmission beam corresponds to the receiving beam of the first SSB.

[0235] As an embodiment, "the target RO is an RO included in the target RO set and associated with the first SSB" includes: the target RO is an RO in the target RO set whose adopted transmitting spatial filter corresponds to the receiving spatial filter of the first SSB.

[0236] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is an RO randomly selected from multiple ROs included in the target RO set and associated with the first SSB.

[0237] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is an RO selected with medium probability from multiple ROs included in the target RO set and associated with the first SSB.

[0238] As an embodiment, “the target RO is an RO included in the target RO set and associated with the first SSB” includes: the target RO is the frontmost RO among multiple ROs included in the target RO set and associated with the first SSB.

[0239] As an embodiment, “the target RO set at least includes the second RO set” includes: the second RO set belongs to the target RO set.

[0240] As an embodiment, “the target RO set at least includes the second RO set” includes: the target RO set is the second RO set.

[0241] As an embodiment, “the target RO set at least includes the second RO set” includes: the target RO set only includes the second RO set.

[0242] As an embodiment, “the target RO set at least includes the second RO set” includes: the ROs included in the second RO set are located in the target RO set.

[0243] As an embodiment, “the target RO set at least includes the second RO set” includes: the target RO set not only includes the ROs in the second RO set, but also includes ROs located on full-duplex symbols.

[0244] As an embodiment, the first threshold is a numerical value.

[0245] As an embodiment, the first threshold is a non-negative number.

[0246] As an embodiment, the unit of the first threshold is dB.

[0247] As an embodiment, the unit of the first threshold is dBm.

[0248] As an embodiment, the unit of the first threshold is mW.

[0249] As an embodiment, the unit of the first threshold is W.

[0250] As an embodiment, the first counter is used to count transmissions of random access preambles located on full-duplex symbols.

[0251] As an embodiment, the first counter is used to count consecutive transmissions of random access preambles located on full-duplex symbols.

[0252] As an embodiment, the value of the first counter increases by 1 each time.

[0253] As an embodiment, the value of the first counter is a positive integer.

[0254] As an embodiment, the first counter is a user equipment variable (UE variable).

[0255] As an embodiment, the first counter is a user equipment variable for a random access procedure.

[0256] As an embodiment, the first counter is a user equipment variable for a random access procedure on full-duplex symbols.

[0257] As an embodiment, the first counter is a random access preamble transmission counter located on a full-duplex symbol of a random access procedure to which the first PRACH belongs.

[0258] As an embodiment, the first counter is a variable “SBFD_PREAMBLE_TRANSMISSION_COUNTER”.

[0259] As an embodiment, the value of the first counter is not greater than the sum of the first value plus 1.

[0260] As an embodiment, the first value is a non-negative integer.

[0261] As an embodiment, the value of the first numerical value is greater than 1.

[0262] As an embodiment, the first value represents the maximum number of transmissions of the first PRACH on a full-duplex symbol.

[0263] As an embodiment, the first value represents the maximum number of times the first PRACH is continuously sent on a full-duplex symbol.

[0264] As an embodiment, the first value is the value of the field "SBFD_preambleTransMax-r19".

[0265] As an embodiment, "whether the target RO set includes the first RO set 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: whether the target RO set includes the first RO set and 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.

[0266] As an embodiment, "whether the target RO set includes the first RO set 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: whether the target RO set includes the first RO set is related to the relationship between the first RSRP and the first threshold, and whether the target RO set includes the first RO set is also related to the relationship between the value of the first counter and the first numerical value.

[0267] As an embodiment, "whether the target RO set includes the first RO set 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 whether the target RO set includes the first RO set.

[0268] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set includes the first RO set.

[0269] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set does not include the first RO set.

[0270] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set does not include the first RO set.

[0271] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set includes the first RO set.

[0272] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set includes the first RO set.

[0273] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set to include the first RO set.

[0274] As an embodiment, "whether the target RO set includes the first RO set 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 target RO set only includes the second RO set.

[0275] As an embodiment, “the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH” includes: the first counter is used to count the number of using ROs in the first RO set to transmit PRACH.

[0276] As an embodiment, “the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH” includes: the value of the first counter is related to the count value of using ROs in the first RO set to transmit PRACH.

[0277] As an embodiment, “the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH” includes: the value of the first counter depends on the count value of using ROs in the first RO set to transmit PRACH.

[0278] As an embodiment, "the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH" includes: the count value of using ROs in the first RO set to transmit PRACH is used to determine (or is used to calculate) the value of the first counter.

[0279] As an embodiment, “the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH” includes: the value of the first counter is linearly correlated with the count value of using ROs in the first RO set to transmit PRACH.

[0280] As an embodiment, “the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH” includes: the value of the first counter is equal to the count value of using ROs in the first RO set to continuously transmit PRACH.

[0281] As an embodiment, "the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH" includes: transmitting PRACH on ROs in the first RO set, and the value of the first counter is equal to the sum of the value of the first counter plus one.

[0282] As an embodiment, "the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH" 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 all belong to the first RO set.

[0283] As an embodiment, "the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH" includes: the value of the first counter is equal to N, where N is a positive integer, and N minus one ROs used to transmit PRACH located before the first PRACH transmission all belong to the first RO set.

[0284] As an embodiment, "the value of the first counter is equal to the count value of using ROs in the first RO set to transmit PRACH" 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, located before the first PRACH transmission all belong to the first RO set.

[0285] As an embodiment, "the value of the first counter is equal to the count value of using the RO in the first RO set to transmit PRACH" includes: the value of the first counter is equal to N, where N is a positive integer, and any one of the N ROs used to transmit PRACH, including the first PRACH transmission, located before the first PRACH transmission does not belong to the second RO set.

[0286] As an embodiment, the downlink path loss reference is a reference signal.

[0287] As an embodiment, the downlink path loss reference is a downlink reference signal used to determine path loss.

[0288] As an embodiment, the downlink path loss reference is CSI-RS (Channel State Information-Reference Signal) or SSB.

[0289] As an embodiment, the downlink path loss reference occupies CSI-RS resources.

[0290] As an embodiment, the downlink path loss reference occupies NZP (non-zero-power) CSI-RS resources.

[0291] As an embodiment, the downlink path loss reference is the first SSB.

[0292] As an embodiment, the downlink path loss reference is an SSB whose index value is equal to the first SSB.

[0293] As an embodiment, the downlink path loss reference is an SSB or reference signal other than the first SSB.

[0294] As an embodiment, “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.

[0295] As an embodiment, “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.

[0296] As an embodiment, “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.

[0297] As an embodiment, “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.

[0298] As an embodiment, “the first RSRP is an RSRP for downlink path loss reference” includes: a value of the first RSRP is equal to a value of the RSRP for the downlink path loss reference.

[0299] As an embodiment, “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.

[0300] As an embodiment, “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.

[0301] As an embodiment, “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.

[0302] As an embodiment, “the second information block indicates the first threshold and the first value” includes: the second information block is used to determine the first threshold and the first value.

[0303] As an embodiment, “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.

[0304] As an embodiment, “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.

[0305] As an embodiment, "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.

[0306] As an embodiment, "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", and the second information block indicates the offset value.

[0307] As an embodiment, "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", and the second information block indicates the offset value.

[0308] As an embodiment, "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", 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", and the second information block indicates the second offset value.

[0309] Example 2

[0310] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached diagram. Figure 2 shown.

[0311] Attachment Figure 2 This document describes the network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architecture for LTE, LTE-A, and future 5G systems is called EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5G System (5GS) / EPS200 or some other appropriate terminology. 5GS / EPS 200 may include one or more UEs 201, 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 services 230. 5GS / EPS 200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. Figure 2As shown, the 5GS / EPS 200 provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services. NG-RAN 202 includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201. gNB 203 may be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmitter Receiver Point), or some other appropriate terminology. gNB 203 provides an access point to the 5G-CN / EPC 210 for UE 201. Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB 203 is connected to the 5G-CN / EPC 210 via the S1 / NG interface. The 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. Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which 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 includes operator-specific Internet Protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and Packet Switching services.

[0312] As an embodiment, the UE201 corresponds to the terminal device in this application.

[0313] As an embodiment, the UE 201 supports transmission in a flexible duplex mode.

[0314] As an embodiment, the gNB (eNB) 201 corresponds to the base station device in this application.

[0315] As an embodiment, the gNB (eNB) 201 supports transmission in flexible duplex mode.

[0316] Example 3

[0317] 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.

[0318] 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 first communication node device (a UE or RSU (Road Side Unit) in V2X (Vehicle to Everything), a vehicle-mounted device or a vehicle-mounted communication module) and a second communication node device (gNB, a UE or RSU in V2X, a vehicle-mounted device or a vehicle-mounted communication module), or between two UEs is shown using 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 PHY301 and is responsible for the link between the first communication node device and the second communication node device, 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 second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest process number). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 of the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first and second communication node devices 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 L2 355, the RLC sublayer 353 in L2 355, and the MAC sublayer 352 in L2 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. L2 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows and Data Radio Bearers (DRBs) to support service diversity. Although not shown in the figure, the first communication node device may have several upper layers above L2355, including a network layer (e.g., 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.).

[0319] As an example, Figure 3 The wireless protocol architecture is applicable to the first communication node device in this application.

[0320] As an example, Figure 3 The wireless protocol architecture is applicable to the second communication node device in this application.

[0321] As an embodiment, the first communication node device is the device used for the terminal in this application.

[0322] As an embodiment, the second communication node device is the device used for the base station in this application.

[0323] 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.

[0324] 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.

[0325] As an embodiment, the first SSB in the present application is generated by the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0326] As an embodiment, the first PRACH in the present application is generated by the RRC306, or MAC302, or MAC352, or the PHY301, or PHY351.

[0327] 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.

[0328] Example 4

[0329] Example 4 shows a schematic diagram of a first communication node device and a second communication node device according to an embodiment of the present application, as shown in the attached figure. Figure 4 shown.

[0330] The first communication node device (450) may include a controller / processor 490, a data source / buffer 480, a receiving processor 452, a transmitter / receiver 456 and a transmitting processor 455, and the transmitter / receiver 456 includes an antenna 460.

[0331] The second communication node device (410) may include a controller / processor 440, a data source / buffer 430, a receiving processor 412, a transmitter / receiver 416 and a transmitting processor 415, and the transmitter / receiver 416 includes an antenna 420.

[0332] In the DL (Downlink), upper layer packets are provided to the controller / processor 440. The controller / processor 440 implements the functions of the L2 layer and above. In the DL, the controller / processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication node device 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operations, retransmission of lost packets, and high-layer signaling to the first communication node device 450. The high-layer information carried by the first information block, the second information block, the first SSB (when the first SSB carries high-layer information), and the third information block in this application is generated by the controller / processor 440. The transmit processor 415 performs various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation. For example, the physical layer signal carrying the first information block, the physical layer signal carrying the second information block, the first SSB, and the physical signal carrying the third information block are processed by the transmit processor 415. The generated modulated symbols are divided into parallel streams, and each stream is mapped to a corresponding multi-carrier subcarrier and / or multi-carrier symbol. The symbols are then mapped by the transmit processor 415 to the antenna 420 via the transmitter 416 and transmitted in the form of RF signals. At the receiving end, each receiver 456 receives the RF signal via its corresponding antenna 460. Each receiver 456 recovers the baseband information modulated onto the RF carrier and provides the baseband information to the receive processor 452. The receive processor 452 performs various signal reception processing functions for the L1 layer. The signal reception processing function includes demodulating the physical layer signal carrying the first information block, the physical layer signal carrying the second information block, the first SSB, and the physical signal carrying the third information block using multi-carrier symbols in the multi-carrier symbol stream based on various modulation schemes (e.g., binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK)). The demodulation is followed by descrambling, decoding, and deinterleaving to recover the data or control signals transmitted by the second communication node device 410 on the physical channel. The data and control signals are then provided to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and above, and interprets higher-layer information. This includes interpreting the higher-layer information carried by the first information block, the second information block, the first SSB (when the first SSB carries higher-layer information), and the third information block. The controller / processor may be associated with a memory 480 that stores program code and data. Memory 480 may be referred to as a computer-readable medium.

[0333] In uplink (UL) transmission, similar to downlink transmission, high-layer information, including the high-layer information carried by the first PRACH (when the first PRACH carries high-layer information), is generated by the controller / processor 490 and then processed by the transmit processor 455 to perform various signal transmission processing functions for the L1 layer (i.e., the physical layer). The first 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. Receivers 416 receive the radio frequency signal via their corresponding antennas 420. 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 performs various signal reception processing functions for the L1 layer (i.e., the physical layer), including receiving and processing the first PRACH (when the first PRACH carries high-layer information), and then provides data and / or control signals to the controller / processor 440. The L2 layer functions implemented by the controller / processor 440 include interpreting high-layer information, such as the high-layer information carried by the first PRACH (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.

[0334] As an embodiment, the first communication node device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication node device 450 apparatus at least: receives a first information block and a second information block, the first information block indicates at least one full-duplex symbol, the second information block indicates a first RO set and a second RO set, the ROs in the first RO set occupying at least one full-duplex symbol in the time domain; receives a first SSB and sends a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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 using the RO in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0335] As an embodiment, the first communication node device 450 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating 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 at least one full-duplex symbol, the second information block indicating a first RO set and a second RO set, the ROs in the first RO set occupying at least one full-duplex symbol in the time domain; receiving a first SSB and sending a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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 being equal to the count value of using the RO in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0336] As an embodiment, the second communication node device 410 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication node device 410 apparatus at least: sends a first information block and a second information block, the first information block indicating at least one full-duplex symbol, the second information block indicating a first RO set and a second RO set, the ROs in the first RO set occupying at least one full-duplex symbol in the time domain; sends a first SSB, and receives a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, the target RO set including at least the second RO set; whether the target RO set includes the first RO set 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 being equal to the count value of using the ROs in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0337] As an embodiment, the second communication node device 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 at least one full-duplex symbol, the second information block indicating a first RO set and a second RO set, the ROs in the first RO set occupying at least one full-duplex symbol in the time domain; sending a first SSB and receiving a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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 using the RO in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0338] As an embodiment, the first communication node device 450 is the device used for the terminal in this application.

[0339] As an embodiment, the first communication node device 450 is a user equipment (UE).

[0340] As an embodiment, the first communication node device 450 is a user equipment supporting flexible duplex mode transmission.

[0341] As an embodiment, the first communication node device 450 is the terminal in this application.

[0342] As an embodiment, the second communication node device 410 is the device used for the base station in this application.

[0343] As an embodiment, the second communication node device 410 is a base station device (gNB / eNB).

[0344] As an embodiment, the second communication node device 410 is a base station device that supports flexible duplex mode transmission.

[0345] As an embodiment, the second communication node device 410 is the base station in this application.

[0346] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are used to receive the first information block in this application.

[0347] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are configured to receive the second information block in the present application.

[0348] 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 SSB in this application.

[0349] As an embodiment, the transmitter 456 (including the antenna 460), the transmit processor 455 and the controller / processor 490 are used to transmit the first PRACH in this application.

[0350] As an embodiment, the receiver 456 (including the antenna 460 ), the receiving processor 452 , and the controller / processor 490 are configured to receive the third information block in the present application.

[0351] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the first information block in this application.

[0352] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the second information block in this application.

[0353] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the first SSB in this application.

[0354] As an embodiment, the receiver 416 (including the antenna 420), the receiving processor 412 and the controller / processor 440 are used to receive the first PRACH in this application.

[0355] As an embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415 and the controller / processor 440 are used to transmit the third information block in this application.

[0356] Example 5

[0357] Example 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. Figure 5 As shown in the attached Figure 5 In the example, base station N500 is the 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.

[0358] for Base Station N500, sending the first information block in step S501, sending the second information block in step S502, sending the first SSB in step S503, receiving the first PRACH in step S504, and sending the third information block in step S505.

[0359] for Terminal U550 , receive the first information block in step S551, receive the second information block in step S552, receive the first SSB in step S553, send the first PRACH in step S554, and receive the third information block in step S555.

[0360] In embodiment 5, the first information block indicates at least one full-duplex symbol, the second information block indicates a first RO set and a second RO set, the ROs in the first RO set occupy at least one full-duplex symbol in the time domain; the target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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 using the RO in the first RO set to transmit PRACH; the first RSRP is the RSRP referenced for downlink path loss; the second information block indicates the first threshold and the first numerical value; the third information block indicates a first RO pool.

[0361] As an embodiment, the first information block is earlier than the second information block.

[0362] As an embodiment, the first information block is later than the second information block.

[0363] As an embodiment, the first information block is earlier than the third information block.

[0364] As an embodiment, the first information block is later than the third information block.

[0365] As an embodiment, the second information block is earlier than the third information block.

[0366] As an embodiment, the second information block is later than the third information block.

[0367] As an embodiment, the first information block and the second information block are carried through different IEs or different fields in the same signaling.

[0368] 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 benefit of doing so is that resources are saved.

[0369] As an embodiment, the first information block and the second information block belong to two different IEs. As a subsidiary embodiment of the above embodiment, the advantage of this is that the design is simple.

[0370] As an embodiment, the first information block and the third information block are carried through different IEs or different fields in the same signaling.

[0371] As an embodiment, the first information block and the third information block belong to the same IE. As a subsidiary embodiment of the above embodiment, the benefit of doing so is that resources are saved.

[0372] As an embodiment, the first information block and the third information block belong to two different IEs. As a subsidiary embodiment of the above embodiment, the advantage of this is that the design is simple.

[0373] As an embodiment, the second information block and the third information block are carried through different IEs or different fields in the same signaling.

[0374] As an embodiment, the second information block and the third information block belong to the same IE. As a subsidiary embodiment of the above embodiment, the benefit of doing so is that resources are saved.

[0375] As an embodiment, the second information block and the third information block belong to two different IEs. As a subsidiary embodiment of the above embodiment, the advantage of this is that the design is simple.

[0376] As an embodiment, the third information block includes higher-layer information or higher-layer parameter configuration.

[0377] As an embodiment, the third information block includes one or more IEs included in RRC layer signaling, or the second information block includes one or more fields included in RRC layer signaling. As a subsidiary embodiment of the above embodiment, the second information block includes RRC to reduce signaling overhead.

[0378] As an embodiment, the third information block includes part or all of the fields included in a SIB.

[0379] As an embodiment, the third information block is cell common (Cell Common).

[0380] As an embodiment, the third information block is cell specific.

[0381] As an embodiment, the third information block is group common.

[0382] As an embodiment, the third information block is user equipment specific (UE specific or UE dedicated).

[0383] As an embodiment, the third information block is configured per subband (per subband).

[0384] As an embodiment, the third information block is configured per carrier (per carrier).

[0385] As an embodiment, the third information block is configured per bandwidth part (BWP, bandwidth Part) (Per BWP).

[0386] As an embodiment, the third information block includes part or all of the fields in the IE "ServingCellConfigCommon".

[0387] As an embodiment, the third information block includes part or all of the fields in the IE "CellGroupConfig".

[0388] As an embodiment, the third information block includes part or all of the fields in the IE "SpCellConfig".

[0389] As an embodiment, the third information block includes part or all of the fields in the IE "SCellConfig".

[0390] As an embodiment, the third information block includes part or all of the fields in the IE "ServingCellConfigCommonSIB".

[0391] As an embodiment, the third information block includes part or all of the fields in the IE "ServingCellConfig".

[0392] As an embodiment, the third information block includes part or all of the fields in the IE "UplinkConfigCommon".

[0393] As an embodiment, the third information block includes part or all of the fields in the IE "UplinkConfigCommonSIB".

[0394] As an embodiment, the third information block includes part or all of the fields in the IE "RACH-ConfigCommon".

[0395] As an embodiment, the third information block includes part or all of the fields in the IE "RACH-ConfigGeneric".

[0396] As an embodiment, the third information block includes part or all of the fields in the IE "SBFDConfigDedicated-r19".

[0397] As an embodiment, the third information block includes part or all of the fields in the IE "SBFDConfigCommon-r19".

[0398] As an embodiment, the third information block includes part or all of the fields in the IE "SBFDConfig-r19".

[0399] Example 6

[0400] Example 6 illustrates a schematic diagram of a target RO set in an initial random access process according to an embodiment of the present application, as shown in the attached figure. Figure 6 As shown in the attached Figure 6 In the figure, each diamond represents a judgment, and each rectangle represents a state. Starting from S600, it is judged in S601 that for the initial random access process, the value of the first counter is set to 1, and the first RSRP is greater than the first threshold. In S602, the target RO set includes the first RO set. In S603, the target RO set only includes the second RO set.

[0401] In Example 6, for the initial random access process, the value of the first counter in this application is set to 1, and when the first RSRP in this application is greater than the first threshold, the target RO set in this application includes the first RO set; otherwise, the target RO set only includes the second RO set.

[0402] As an embodiment, for the initial random access process, the target RO set is determined to include the first RO set based on the first RSRP being greater than the first threshold, thereby improving the probability of successful PARACH transmission and reducing the implementation complexity of transmitting PRACH on full-duplex symbols.

[0403] As an embodiment, the target RO set includes the first RO set, and the random access type selected by the user equipment is a random access type supporting SBFD.

[0404] As an embodiment, the target RO set includes the first RO set including: the random access type selected by the user equipment is a random access type that supports initiating random access on full-duplex symbols.

[0405] As an embodiment, the target RO set includes the first RO set, and the random access type selected by the user equipment includes random access initiated on a full-duplex symbol.

[0406] As an embodiment, the target RO set includes the first RO set including: the random access type selected by the user equipment is SBFD random access.

[0407] As an embodiment, the initial random access procedure is a random access procedure initiated for the first time.

[0408] As an embodiment, the initial random access process is a random access process initiated for the first time by the user equipment from an RRC idle state or an RRC inactive state.

[0409] As an embodiment, the initial random access process is a random access process initiated for the first time by the user equipment after entering the RRC idle state or the RRC inactive state.

[0410] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: for the initial random access process, the value of the first counter is set to 1.

[0411] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set and the second RO set.

[0412] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: when the first PRACH is used to initiate the initial random access process and the first RSRP is greater than the first threshold, the value of the first counter is set to 1, and the target RO set includes the first RO set.

[0413] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: when the first PRACH is used to initiate the initial random access process and the first RSRP is greater than the first threshold, the value of the first counter is set to 1, and the target RO set includes the first RO set and the second RO set.

[0414] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the RO included in the first RO set can be used to send the first PRACH.

[0415] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: for the initial random access process, the first RSRP being greater than the first threshold is a condition that the target RO set includes the first RO set.

[0416] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: for the initial random access process, the first RSRP being greater than the first threshold is a valid condition for the target RO set to include the first RO set.

[0417] As an embodiment, "for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set" includes: for the initial random access process, the first RSRP being greater than the first threshold is one of the multiple conditions for the target RO set to include the first RO set.

[0418] As an embodiment, "otherwise, the target RO set only includes the second RO set" includes: for the initial random access process, when the first RSRP is not greater than (or less than or equal to) the first threshold, the target RO set only includes the second RO set.

[0419] As an embodiment, "otherwise, the target RO set only includes the second RO set" includes: for the initial random access process, when the first RSRP is not greater than (or less than or equal to) the first threshold, only the second RO set is used to send the first PRACH.

[0420] As an embodiment, "otherwise, the target RO set only includes the second RO set" includes: for the initial random access process, when the first RSRP is not greater than (or less than or equal to) the first threshold, the target RO set does not include the first RO set.

[0421] As an embodiment, "otherwise, the target RO set only includes the second RO set" includes: for the initial random access process, when the first RSRP is not greater than (or less than or equal to) the first threshold, the RO included in the target RO set and the RO included in the first RO set have no overlap.

[0422] As an embodiment, "otherwise, the target RO set only includes the second RO set" includes: for the initial random access process, when the first RSRP is not greater than (or less than or equal to) the first threshold, the first RO set cannot be used for sending the first PRACH.

[0423] Example 7

[0424] Example 7 illustrates a schematic diagram of a target RO set when the value of the first counter is equal to the sum of the first value plus 1 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, when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and the second value is activated.

[0425] In Example 7, the second information block in the present application indicates a second numerical value; when the value of the first counter in the present application is equal to the sum of the first numerical value plus 1, the target RO set in the present application only includes the second RO set and activates the second numerical value, and the second numerical value in the present application is a maximum number of transmissions of a random access preamble.

[0426] As an embodiment, the value of the first counter is equal to the sum of the first value plus 1, indicating that multiple consecutive PRACH transmissions have failed on the first RO set. At this time, setting the target RO set to include only the second RO set is a fallback mechanism to ensure the performance of random access and the robustness of the system.

[0427] As an embodiment, the second value is a non-negative integer.

[0428] As an embodiment, the value of the second numerical value is greater than 1.

[0429] As an embodiment, the second value is the maximum number of times the terminal sends a random access preamble in the same random access process.

[0430] As an embodiment, the second value is the maximum number of times the terminal sends a random access preamble in the target RO set.

[0431] As an embodiment, the second value is the value of the field "preambleTransMax".

[0432] As an embodiment, “the second information block indicates a second numerical value” includes: the second information block explicitly or implicitly indicates the second numerical value.

[0433] As an embodiment, “the second information block indicates a second numerical value” includes: part or all of the second information block is used to explicitly or implicitly indicate the second numerical value.

[0434] As an embodiment, “the second information block indicates a second value” includes: the second information block is used to determine the second value.

[0435] As an embodiment, “the second information block indicates a second value” includes: the second value depends on the second information block.

[0436] As an embodiment, “the second information block indicates a second value” includes: a field included in the second information block indicates the second value.

[0437] As an embodiment, “the second information block indicates a second numerical value” includes: the value of a field included in the second information block is equal to the second numerical value.

[0438] As an embodiment, “the second information block indicates a second value” includes: the second value is determined by the “preambleTransMax” field in the second information block.

[0439] As an embodiment, “when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and activates the second value” includes: when the value of the first counter is equal to the sum of the first value plus 1, the target RO set does not include the first RO set and activates the second value.

[0440] As an embodiment, “when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and activates the second value” includes: when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and uses the second value.

[0441] As an embodiment, "when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value" includes: when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and introduces the second value to determine whether to send the first PRACH.

[0442] As an embodiment, “when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and activates the second value” includes: when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and sets a variable to the second value, and the variable is used for the transmission count of the first PRACH.

[0443] As a subsidiary embodiment of this embodiment, the first PRACH is sent once, and the value of the variable is increased by one.

[0444] As an embodiment, “when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and activates the second value” includes: when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set, and the variable associated with the first value is set to the second value.

[0445] As an embodiment, “when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set and activates the second value” includes: when the value of the first counter is equal to the sum of the first value plus 1, the target RO set includes only the second RO set, and sets the value of a variable to the second value, wherein the variable is assigned by the first value.

[0446] As an embodiment, "the second value is a maximum number of transmissions of a random access preamble" includes: the second value depends on a maximum number of transmissions of a random access preamble.

[0447] As an embodiment, "the second value is a maximum number of transmission times of a random access preamble" includes: the second value is related to a maximum number of transmission times of a random access preamble.

[0448] As an embodiment, "the second value is a maximum number of transmissions of a random access preamble" includes: the maximum number of transmissions of a random access preamble is used to determine (or is used to calculate) the second value.

[0449] As an embodiment, "the second value is a maximum number of transmissions of a random access preamble" includes: the second value is linearly related to a maximum number of transmissions of a random access preamble.

[0450] As an embodiment, "the second value is a maximum number of transmissions of a random access preamble" includes: the second value is the maximum number of transmissions of the first PRACH in the same random access process.

[0451] As an embodiment, "the second value is a maximum number of transmissions of a random access preamble" includes: the second value is the maximum number of random access preamble code transmissions performed before declaring access failure.

[0452] Example 8

[0453] Example 8 illustrates a schematic diagram of the first backoff time 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 figure, each diamond represents a judgment, and each rectangle represents a state. Starting from S800, in S801, the value of the first counter is equal to the sum of the first value plus 1. In S802, random access resource selection is initiated in the second RO set. In S803, random access resource selection is initiated in the target RO set after the first backoff time.

[0454] In Example 8, when the value of the first counter in this application is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set in this application; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time in this application is equal to a random value between 0 and the maximum backoff time, and the maximum backoff time in this application is configured or predefined.

[0455] As an embodiment, when the value of the first counter is equal to the sum of the first value plus 1, the second RO set directly initiates random access resource selection without a certain period of backoff, which can reduce PRACH transmission delay and obtain better uplink coverage.

[0456] As an embodiment, "when the value of the first counter is equal to the sum of the first value plus 1, initiating random access resource selection in the second RO set" includes: when the value of the first counter is equal to the sum of the first value plus 1, directly initiating random access resource selection in the second RO set.

[0457] As an embodiment, "when the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set" includes: when the value of the first counter is equal to the sum of the first value plus 1, there is no need to fallback, and random access resource selection is directly initiated in the second RO set.

[0458] As an embodiment, "when the value of the first counter is equal to the sum of the first value plus 1, initiating random access resource selection in the second RO set" includes: when the value of the first counter is equal to the sum of the first value plus 1, there is no need to fallback, and the time-frequency resources of the RO used to transmit the first PRACH are directly selected in the second RO set.

[0459] In one embodiment, "when the value of the first counter is equal to the sum of the first value plus 1, initiating random access resource selection in the second RO set" includes: when the value of the first counter is equal to the sum of the first value plus 1, directly determining the RO used to send the first PRACH in the second RO set based on the first SSB.

[0460] As an embodiment, "otherwise, random access resource selection is initiated in the target RO set after the first backoff time": when the value of the first counter is not equal to the sum of the first value plus 1, random access resource selection is initiated in the target RO set after the first backoff time.

[0461] As an embodiment, "otherwise, random access resource selection is initiated in the target RO set after the first backoff time": when the value of the first counter is less than the sum of the first value plus 1, random access resource selection is initiated in the target RO set after the first backoff time.

[0462] As an embodiment, "otherwise, random access resource selection is initiated in the target RO set after the first backoff time": when the value of the first counter is less than the sum of the first value plus 1, the RO used to send the first PRACH is determined in the second RO set according to the first SSB after the first backoff time.

[0463] As an embodiment, “the first backoff time is equal to a random value between 0 and the maximum backoff time” includes: the first backoff time is within the interval from 0 to the maximum backoff time.

[0464] As an embodiment, “the first backoff time is equal to a random value between 0 and the maximum backoff time” includes: the first backoff time is not less than 0 and the first backoff time is not greater than the maximum backoff time.

[0465] As an embodiment, "the first backoff time is equal to a random value between 0 and the maximum backoff time" includes: the terminal randomly selects a value in the interval from 0 to the maximum backoff time, and the randomly selected value is set as the first backoff time.

[0466] As an embodiment, “the first backoff time is equal to a random value between 0 and the maximum backoff time” includes: the probability that the first backoff time is equal to any value in the interval from 0 to the maximum backoff time is the same.

[0467] As an embodiment, the value of the first backoff time is a non-negative integer.

[0468] As an embodiment, the value of the first backoff time is a non-integer.

[0469] As an embodiment, the unit of the first backoff time is seconds or milliseconds.

[0470] As an embodiment, the unit of the first back-off time is the number of symbols.

[0471] As an embodiment, the value of the maximum backoff time is a non-negative integer.

[0472] As an embodiment, the value of the maximum backoff time is a non-integer.

[0473] As an embodiment, the unit of the maximum backoff time is seconds or milliseconds.

[0474] As an embodiment, the unit of the maximum backoff time is the number of symbols.

[0475] As an embodiment, the maximum backoff time is the variable "PREAMBLE_BACKOFF".

[0476] As an embodiment, “the maximum backoff time is configured or predefined” includes: the maximum backoff time is fixed.

[0477] As an embodiment, “the maximum backoff time is configured or predefined” includes: the maximum backoff time is hard coded in the standard.

[0478] As an embodiment, "the maximum backoff time is configured or predefined" includes: higher layer signaling or higher layer parameters indicate the maximum backoff time.

[0479] As an embodiment, "the maximum backoff time is configured or predefined" includes: the maximum backoff time is indicated by the user equipment capability.

[0480] As an embodiment, "the maximum backoff time is configured or predefined" includes: the parameter for calculating the maximum backoff time includes a first parameter value, and higher layer signaling or a higher layer parameter indicates the first parameter value.

[0481] As an embodiment, "the maximum backoff time is configured or predefined" includes: the maximum backoff time is linearly related to the first parameter value, and higher layer signaling or higher layer parameters indicate the first parameter value.

[0482] As an embodiment, "the maximum backoff time is configured or predefined" includes: the maximum backoff time is linearly related to the first parameter value, and the user equipment capability indicates (or reports) the first parameter value.

[0483] As an embodiment, "the maximum backoff time is configured or predefined" includes: the maximum backoff time is one of a plurality of backoff times, and higher layer signaling or a higher layer parameter indicates the plurality of backoff times.

[0484] As an embodiment, "the maximum backoff time is configured or predefined" includes: the maximum backoff time is linearly related to a first parameter value, the first parameter value is one of multiple parameter values, and higher layer signaling or higher layer parameters indicate the multiple parameter values.

[0485] Example 9

[0486] Example 9 illustrates a schematic diagram of the value of the second counter according to an embodiment of the present application, as shown in the attached figure. Figure 9 As shown in the attached Figure 9 In the example, the value of the second counter is equal to the count value of using ROs in the target RO set to transmit the PRACH.

[0487] In Example 9, the value of the second counter in this application is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH in this application depends on the target reception power of the first PRACH; the target reception power in this application depends on the target reception power of the previous random access preamble.

[0488] As an embodiment, the transmission power of the first PRACH is determined according to the target receiving power of the previous random access preamble, supporting random access processes in different scenarios, simplifying the design while avoiding large-scale power compensation design, and ensuring random access performance.

[0489] As an embodiment, the second counter is used to count the transmissions of the random access preamble.

[0490] As an embodiment, the value of the second counter increases by 1 each time.

[0491] As an embodiment, the value of the second counter is a positive integer.

[0492] As an embodiment, the second counter is a random access preamble transmission counter in a random access procedure to which the first PRACH belongs.

[0493] As an embodiment, the second counter is a variable for randomly accessed user equipment.

[0494] As an embodiment, the second counter counts all types of random access procedures.

[0495] As an embodiment, the second counter counts the total number of transmissions of the random access preamble.

[0496] As an embodiment, the second counter is a variable “PREAMBLE_TRANSMISSION_COUNTER”.

[0497] As an embodiment, the value of the second counter is not greater than the second value.

[0498] As an embodiment, “the value of the second counter is equal to the count value of using ROs in the target RO set to transmit PRACH” includes: the second counter is used to count the number of using ROs in the target RO set to transmit PRACH.

[0499] As an embodiment, “the value of the second counter is equal to the count value of using ROs in the target RO set to transmit PRACH” includes: the value of the second counter is related to the count value of using ROs in the target RO set to transmit PRACH.

[0500] As an embodiment, “the value of the second counter is equal to the count value of using ROs in the target RO set to transmit PRACH” includes: the value of the second counter depends on the count value of using ROs in the target RO set to transmit PRACH.

[0501] As an embodiment, “the value of the second counter is equal to the count value of using ROs in the target RO set to transmit PRACH” includes: the count value of using ROs in the target RO set to transmit PRACH is used to determine the value of the second counter.

[0502] As an embodiment, “the value of the second counter is equal to the count value of using ROs in the target RO set to transmit PRACH” includes: the value of the second counter is linearly correlated with the count value of using ROs in the target RO set to transmit PRACH.

[0503] As an embodiment, "the value of the second counter is equal to the count value of using ROs in the target RO set to transmit PRACH" includes: when PRACH is transmitted on ROs in the target RO set, the value of the second counter is equal to the sum of the value of the second counter plus one.

[0504] As an embodiment, the transmission power of the first PRACH is a real number.

[0505] As an embodiment, the unit of the transmission power of the first PRACH is dBm.

[0506] As an embodiment, the unit of the transmission power of the first PRACH is mW (milliWatt).

[0507] As an embodiment, the unit of the transmission power of the first PRACH is W (Watt).

[0508] As an embodiment, the transmit power of the first PRACH is the transmit power of the first PRACH on an active uplink BWP in a carrier of a serving cell.

[0509] As an embodiment, the target receiving power of the first PRACH is a real number.

[0510] As an embodiment, the unit of the target received power of the first PRACH is dBm.

[0511] As an embodiment, the unit of the target receiving power of the first PRACH is mW (milliWatt).

[0512] As an embodiment, the unit of the target receiving power of the first PRACH is W (Watt).

[0513] As an embodiment, the target receiving power of the first PRACH is the expected receiving power of the first PRACH.

[0514] As an embodiment, the target receiving power of the first PRACH is the expected receiving power of the first PRACH configured according to the target SINR value.

[0515] As an embodiment, the target receiving power of the first PRACH is the power expected by the receiver of the first PRACH.

[0516] As an embodiment, the target received power of the first PRACH is the value of the variable "PREAMBLE_RECEIVED_TARGET_POWER" in the random access process to which the first PRACH belongs.

[0517] As an embodiment, the feature "the transmit power of the first PRACH depends on the target receive power of the first PRACH" includes the following meaning: the target receive power of the first PRACH is used to determine (or is used to calculate) the transmit power of the first PRACH.

[0518] As an embodiment, the feature "the transmit power of the first PRACH depends on the target receive power of the first PRACH" includes the following meaning: the transmit power of the first PRACH is related to the target receive power of the first PRACH.

[0519] As an embodiment, the feature "the transmission power of the first PRACH depends on the target reception power of the first PRACH" includes the following meaning: the transmission power of the first PRACH depends on the target reception power of the first PRACH and the path loss of the reference signal associated with the first PRACH.

[0520] As a subsidiary embodiment of this embodiment, the path loss of the reference signal associated with the first PRACH corresponds to the PL in the 3GPP protocol. b,f,c .

[0521] As a subsidiary embodiment of this embodiment, the path loss of the reference signal associated with the first PRACH is a path loss determined by measuring the reference signal associated with the first PRACH.

[0522] As a subsidiary embodiment of this embodiment, the path loss of the reference signal associated with the first PRACH is a path loss determined by the transmit power of the reference signal associated with the first PRACH and the RSRP (reference signal received power) of the reference signal associated with the first PRACH.

[0523] As a subsidiary embodiment of this embodiment, the path loss of the reference signal associated with the first PRACH is equal to the difference between the transmit power of the reference signal associated with the first PRACH and the RSRP for the reference signal associated with the first PRACH.

[0524] As an embodiment, the feature "the transmission power of the first PRACH depends on the target reception power of the first PRACH" includes the following meaning: the transmission power of the first PRACH is equal to the minimum value between the maximum output power and the sum of the target reception power of the first PRACH and the path loss of the reference signal associated with the first PRACH.

[0525] As an embodiment, the feature "the transmit power of the first PRACH depends on the target receive power of the first PRACH" includes the following meaning: within the range not exceeding the configured maximum output power, there is a linear correlation between the transmit power of the first PRACH and the target receive power of the first PRACH.

[0526] As a subsidiary embodiment of this embodiment, the maximum output power is the maximum transmit power value of the first PRACH configured by the terminal.

[0527] As a subsidiary embodiment of this embodiment, the maximum output power is the maximum output power of a serving cell configured by the terminal for one carrier.

[0528] As a subsidiary embodiment of this embodiment, the maximum output power is related to the capability of the terminal.

[0529] As a subsidiary embodiment of this embodiment, the maximum output power is related to the Category of the terminal.

[0530] As a subsidiary embodiment of this embodiment, the maximum output power corresponds to P in the 3GPP protocol. CMAX,f,c (i).

[0531] As an embodiment, the previous random access preamble refers to a random access preamble transmission before the first PRACH.

[0532] As an embodiment, the previous random access preamble refers to a random access preamble transmission before the first PRACH and belonging to the same random access process as the first PRACH.

[0533] As an embodiment, the previous random access preamble refers to a random access preamble transmission that is earlier than the first PRACH and is immediately adjacent to the first PRACH.

[0534] As an embodiment, the previous random access preamble is a random access preamble transmission corresponding to which the value of the second counter is equal to the second counter corresponding to the first PRACH minus one.

[0535] As an embodiment, the previous random access preamble refers to the last random access preamble.

[0536] As an embodiment, the previous random access preamble refers to a random access preamble in the same random access process when the value of the second counter of the previous random access preamble is equal to the value of the second counter of the first PRACH minus one.

[0537] As an embodiment, the value of the second counter corresponding to the previous random access preamble is a positive integer.

[0538] As an embodiment, the value of the second counter corresponding to the previous random access preamble is not greater than the second value.

[0539] As an embodiment, the value of the second counter corresponding to the previous random access preamble is a positive integer greater than 1.

[0540] As an embodiment, the target received power corresponding to the previous random access preamble is equal to the initial target received power.

[0541] As a subsidiary embodiment of this embodiment, the initial target received power is related to the symbol type of at least one symbol overlapped by the previous random access preamble in the time domain.

[0542] As a subsidiary embodiment of this embodiment, the initial target received power is related to the symbol type of the previous random access preamble that overlaps with one symbol in the time domain.

[0543] As a subsidiary embodiment of this embodiment, the initial target received power is related to the symbol type of multiple symbols overlapped by the previous random access preamble in the time domain.

[0544] As a subsidiary embodiment of this embodiment, the unit of the initial target received power is dBm.

[0545] As a subsidiary embodiment of this embodiment, the unit of the initial target received power is mW (milliWatt).

[0546] As a subsidiary embodiment of this embodiment, the unit of the initial target received power is W (Watt).

[0547] As an embodiment, the target received power corresponding to the previous random access preamble is equal to the value of the initial target received power after power boosting.

[0548] As an embodiment, the target received power corresponding to the previous random access preamble is not equal to the initial target received power.

[0549] As an embodiment, "the target received power depends on the target received power of the previous random access preamble" includes: the target received power is related to the target received power of the previous random access preamble.

[0550] As an embodiment, "the target received power depends on the target received power of the previous random access preamble" includes: the target received power is linearly correlated with the target received power of the previous random access preamble.

[0551] As an embodiment, "the target received power depends on the target received power of the previous random access preamble" includes: the target received power of the previous random access preamble is used to determine (or is used to calculate) the target received power.

[0552] As an embodiment, "the target received power depends on the target received power of the previous random access preamble" includes: the target received power is equal to the difference between the target received power of the previous random access preamble and the target power increase value.

[0553] As an embodiment, "the target received power depends on the target received power of the previous random access preamble" includes: the target received power is equal to the sum of the target received power of the previous random access preamble and the target power boost value.

[0554] As a subsidiary embodiment of this embodiment, the target power boost value=(PREAMBLE_POWER_RAMPING_COUNTER−1)×PREAMBLE_POWER_RAMPING_STEP;

[0555] Among them, PREAMBLE_POWER_RAMPING_COUNTER represents the value of the random access preamble power boost counter, PREAMBLE_POWER_RAMPING_STEP represents the target step size, and the target step size is a step size jointly determined by the symbol type of at least one symbol occupied by the first PRACH in the time domain and the symbol type of at least one symbol occupied by the previous random access preamble in the time domain.

[0556] As a subsidiary embodiment of this embodiment, the target power boost value=(PREAMBLE_POWER_RAMPING_COUNTER−1)×PREAMBLE_POWER_RAMPING_STEP+OFFSET;

[0557] Among them, PREAMBLE_POWER_RAMPING_COUNTER represents the value of the random access preamble power boost counter, PREAMBLE_POWER_RAMPING_STEP represents the target step size, and the target step size is a step size jointly determined by the symbol type of at least one symbol occupied by the first PRACH in the time domain and the symbol type of at least one symbol occupied by the previous random access preamble in the time domain, and OFFSET represents an offset value related to the target step size.

[0558] As a subsidiary embodiment of this embodiment, the target power boost value=(PREAMBLE_POWER_RAMPING_COUNTER−1)×PREAMBLE_POWER_RAMPING_STEP+(PREAMBLE_POWER_RAMPING_COUNTER−1)×(PREAMBLE_POWER_RAMPING_STEP−PREAMBLE_POWER_RAMPING_STEP#1);

[0559] Among them, PREAMBLE_POWER_RAMPING_COUNTER represents the value of the random access preamble power boost counter, PREAMBLE_POWER_RAMPING_STEP represents the target step size, and the target step size is a step size jointly determined by the symbol type of at least one symbol occupied by the first PRACH in the time domain and the symbol type of at least one symbol occupied by the previous random access preamble in the time domain, and PREAMBLE_POWER_RAMPING_STEP#1 represents a step size other than the target step size.

[0560] Example 10

[0561] Example 10 illustrates a schematic diagram of a first RO tank according to an embodiment of the present application, as shown in the attached Figure 10 As shown in the attached Figure 10 In the example, the third information block indicates the first RO pool, the rectangular area filled with cross lines represents a full-duplex symbol, and the rectangular area without fill represents a non-full-duplex symbol.

[0562] In embodiment 10, the third information block in the present application indicates a first RO pool, and the ROs located on non-full-duplex symbols in the first RO pool in the present application belong to the second RO set.

[0563] As an embodiment, two PRACH configuration signalings are supported to respectively configure ROs for random access for SBFD UEs and non-SBFD UEs, thereby increasing configuration flexibility.

[0564] As an embodiment, the first RO tank includes a plurality of ROs.

[0565] As an embodiment, any one RO in the first RO pool is a PRACH (Physical Random Access Channel) Occasion.

[0566] As an embodiment, any one RO in the first RO pool includes allocated or configured PRACH time-frequency resources.

[0567] As an embodiment, any one RO in the first RO pool includes time-frequency resources occupied by one PRACH transmission.

[0568] As an embodiment, any two ROs in the first RO pool are time-division multiplexed.

[0569] As an embodiment, any two ROs in the first RO pool include the same time domain resources.

[0570] As an embodiment, there are two ROs in the first RO pool and the two ROs include different time domain resources.

[0571] As an embodiment, there are two frequency division multiplexed (FDM) PRACH opportunities in the first RO pool.

[0572] As an embodiment, any RO in the first RO pool only occupies non-full-duplex symbols in the time domain.

[0573] As an embodiment, any RO in the first RO pool occupies only full-duplex symbols indicated as flexible symbols by the TDD uplink and downlink configuration in the time domain.

[0574] As an embodiment, any RO in the first RO pool occupies non-full-duplex symbols in the time domain, or occupies full-duplex symbols indicated as flexible symbols by TDD uplink and downlink configuration.

[0575] As an embodiment, any two ROs in the first RO pool 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.

[0576] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block explicitly or implicitly indicates the first RO pool.

[0577] As an embodiment, “the third information block indicates the first RO pool” includes: part or all of the third information block is used to explicitly or implicitly indicate the first RO pool.

[0578] As an embodiment, “the third information block indicates the first RO pool” includes: the first RO pool depends on the third information block.

[0579] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block is used to determine the first RO pool.

[0580] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block indicates the time-frequency resources included in at least one RO in the first RO pool.

[0581] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block indicates the number of ROs in the first RO pool that are frequency-divided in the same time domain resources.

[0582] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block indicates the starting frequency domain resource of the lowest PRACH opportunity in the frequency domain in the first RO pool.

[0583] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block indicates a PRACH configuration index (configuration index), and the PRACH configuration index configures the first RO pool.

[0584] As an embodiment, “the third information block indicates the first RO pool” includes: the third information block indicates a PRACH configuration index, and the RO located on the non-full-duplex symbol configured by the PRACH configuration index belongs to the first RO pool.

[0585] As an embodiment, "the third information block indicates the first RO pool" includes: the third information block indicates the PRACH configuration index, and the RO configured by the PRACH configuration index and located on a non-full-duplex symbol or on a full-duplex symbol indicated as a flexible symbol by the TDD uplink and downlink configuration belongs to the first RO pool.

[0586] As an embodiment, “ROs in the first RO pool located on non-full-duplex symbols belong to the second RO set” includes: the second RO set includes ROs in the first RO pool located on non-full-duplex symbols.

[0587] As an embodiment, “ROs in the first RO pool located on non-full-duplex symbols belong to the second RO set” includes: the second RO set only includes ROs in the first RO pool located on non-full-duplex symbols.

[0588] As an embodiment, “ROs in the first RO pool located on non-full-duplex symbols belong to the second RO set” includes: ROs in the first RO pool that are mapped to non-full-duplex symbols in the time domain belong to the second RO set.

[0589] As an embodiment, “ROs in the first RO pool located on non-full-duplex symbols belong to the second RO set” includes: ROs in the first RO pool that overlap with at least one non-full-duplex symbol belong to the second RO set.

[0590] As an embodiment, “ROs located on non-full-duplex symbols in the first RO pool belong to the second RO set” includes: the first RO pool only includes ROs located on non-full-duplex symbols, and the target RO set includes the first RO pool.

[0591] As an embodiment, “ROs located on non-full-duplex symbols in the first RO pool belong to the second RO set” includes: the first RO pool only includes ROs located on non-full-duplex symbols, and the first RO pool is the target RO set.

[0592] Example 11

[0593] Example 11 illustrates a schematic diagram of mapping the first RO set and the second RO set to the synchronous broadcast signal according to an embodiment of the present application, as shown in the attached figure. Figure 11 As shown in the attached Figure 11 As shown, each rectangle represents a transmission of a synchronous broadcast signal, wherein the numbers #0, #1 and #2 represent index values ​​of the synchronous broadcast signal, the upper dotted ellipse represents the RO in the first RO set, and the lower dotted ellipse represents the RO in the second RO set.

[0594] In embodiment 11, the ROs in the first RO set and the ROs in the second RO set in this application are respectively mapped to a synchronous broadcast signal.

[0595] As an embodiment, ROs in the first RO set and ROs in the second RO set are mapped separately to the synchronous broadcast signal, thereby improving the PRACH capacity while avoiding adverse effects on other users and ensuring backward compatibility.

[0596] As an embodiment, the synchronous broadcast signal is a synchronization signal.

[0597] As an embodiment, the synchronization broadcast signal is a physical broadcast channel (PBCH).

[0598] As an embodiment, the synchronization broadcast signal includes a synchronization signal and a physical broadcast channel.

[0599] As an embodiment, the synchronization broadcast signal is a synchronization signal physical broadcast channel block (SS / PBCH block).

[0600] As an embodiment, the synchronization broadcast signal is a synchronization signal block (SSB).

[0601] As an embodiment, the synchronization broadcast signal is a 6G synchronization signal or a 6G physical broadcast channel.

[0602] As an embodiment, the technical feature of "ROs in the first RO set and ROs in the second RO set are respectively mapped to a synchronous broadcast signal" includes: ROs in the first RO set and ROs in the second RO set are independently mapped to a synchronous broadcast signal.

[0603] As an embodiment, the technical feature "the ROs in the first RO set and the ROs in the second RO set are each mapped to a synchronized broadcast signal" includes: the ROs in the first RO set that are located on full-duplex symbols in the time domain and the ROs in the second RO set that are located on non-full-duplex symbols in the time domain are each mapped to a synchronized broadcast signal.

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

[0605] As an embodiment, the technical feature "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronized broadcast signal" includes: ROs in the first RO set and ROs in the second RO set are each mapped to a synchronized broadcast signal within a time window. As a subsidiary embodiment of the above embodiment, this approach has the advantage of maintaining the existing association period design and reducing standardization workload.

[0606] As an embodiment, the technical feature "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronized broadcast signal" includes: ROs in the first RO set that are located in the time domain on full-duplex symbols indicated as downlink by the TDD uplink / downlink configuration, and ROs in the second RO set that are located in the time domain on non-full-duplex symbols or flexible full-duplex symbols indicated as flexible by the TDD uplink / downlink configuration, are each mapped to a synchronized broadcast signal within a time window. As a subsidiary embodiment of the above embodiment, this approach has the advantage of maintaining the existing association period design and reducing standardization workload.

[0607] As an embodiment, the technical feature "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronized broadcast signal" includes: ROs in the first RO set located in full-duplex symbols in the time domain and ROs in the second RO set located in non-full-duplex symbols in the time domain are each mapped to a synchronized broadcast signal in their respective time windows. As a subsidiary embodiment of the above embodiment, this approach has the advantage of using independent association periods for ROs in downlink full-duplex symbols, improving flexibility and optimizing PRACH capacity performance.

[0608] As an embodiment, the technical feature "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronized broadcast signal" includes: ROs in the first RO set that are located in the time domain on full-duplex symbols indicated as downlink by the TDD uplink / downlink configuration, and ROs in the second RO set that are located in the time domain on non-full-duplex symbols or flexible full-duplex symbols indicated as flexible by the TDD uplink / downlink configuration, are each mapped to the synchronized broadcast signal in their respective time windows. As a subsidiary embodiment of the above embodiment, this approach has the advantage of using independent association periods, improving flexibility and optimizing PRACH capacity performance.

[0609] As an embodiment, the technical feature "ROs in the first RO set and ROs in the second RO set are respectively mapped to the synchronous broadcast signal" includes: the mapping of ROs in the first RO set and the synchronous broadcast signal does not affect the mapping of ROs in the second RO set and the synchronous broadcast signal.

[0610] As an embodiment, the technical feature of "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronous broadcast signal" includes: ROs in the first RO set and ROs in the second RO set are each mapped to an index of the synchronous broadcast signal.

[0611] As an embodiment, the technical feature "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronous broadcast signal" includes: ROs in the first RO set and ROs in the second RO set are each mapped according to the same sorting rule and index of the synchronous broadcast signal.

[0612] As an embodiment, the technical feature of "ROs in the first RO set and ROs in the second RO set are each mapped to a synchronous broadcast signal" includes: the ROs in the first RO set and the ROs in the second RO set are each independently sorted and then each mapped to a synchronous broadcast signal.

[0613] As an embodiment, the technical feature "the ROs in the first RO set and the ROs in the second RO set are each mapped to a synchronized broadcast signal" includes: the ROs in the first RO set are associated with the synchronized broadcast signal in sequence according to a given order, and the ROs in the second RO set are also associated with the synchronized broadcast signal in sequence according to a given order.

[0614] As an embodiment, the technical feature "the ROs in the first RO set and the ROs in the second RO set are each mapped to the synchronized broadcast signal" includes: the synchronized broadcast block index and the ROs in the first RO set are mapped in sequence according to the mapping order of first the leading index in an 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 block index and the ROs in the second RO set are mapped in sequence according to the mapping order of first the leading index in an 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.

[0615] As an embodiment, the technical feature "the ROs in the first RO set and the ROs in the second RO set are respectively mapped to the synchronized broadcast signal" includes: the synchronized broadcast blocks are mapped in sequence according to the indexes of 0, 1... and the ROs in the first RO set are mapped in sequence according to the mapping order of first the leading index in an 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 block indexes are mapped in sequence according to the indexes of 0, 1... and the ROs in the second RO set according to the mapping order of first the leading index in an 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.

[0616] Example 12

[0617] Example 12 illustrates a structural block diagram of a processing device in a terminal according to an embodiment of the present application, as shown in the attached figure. Figure 12 As shown in the attached Figure 12 In the embodiment, the processing device 1200 in the terminal includes a first receiver 1201 and a first transceiver 1202. The first receiver 1201 includes the first transceiver 1202 of the present application. Figure 4 The transmitter / receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490; the first transceiver 1202 includes the attached Figure 4 The transmitter / receiver 456 (including antenna 460), transmit processor 455 and controller / processor 490 in the.

[0618] In embodiment 12, a first receiver 1201 receives a first information block and a second information block, wherein the first information block indicates at least one full-duplex symbol, and the second information block indicates a first RO set and a second RO set, and the ROs in the first RO set occupy at least one full-duplex symbol in the time domain; a first transceiver 1202 receives a first SSB and sends a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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, and the value of the first counter is equal to the count value of using the RO in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0619] As an embodiment, for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set; otherwise, the target RO set only includes the second RO set.

[0620] As an embodiment, the second information block indicates a second value; when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value, and the second value is a maximum number of transmissions of a random access preamble.

[0621] As an embodiment, when the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time is equal to a random value between 0 and a maximum backoff time, and the maximum backoff time is configured or predefined.

[0622] As an embodiment, the value of the second counter is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH depends on the target receiving power of the first PRACH; the target receiving power depends on the target receiving power of the previous random access preamble.

[0623] As an embodiment, the first receiver 1201 receives a third information block, where the third information block indicates a first RO pool, and ROs located on non-full-duplex symbols in the first RO pool belong to the second RO set.

[0624] As an embodiment, the ROs in the first RO set and the ROs in the second RO set are respectively mapped to a synchronous broadcast signal.

[0625] Example 13

[0626] Example 13 illustrates a structural block diagram of a processing device in a base station according to an embodiment of the present application, as shown in the attached figure. Figure 13 As shown in the attached Figure 13 In the embodiment, the processing device 1300 in the base station includes a first transmitter 1301 and a second transceiver 1302. The first transmitter 1301 includes the Figure 4 The transmitter / receiver 416 (including antenna 460), the transmission processor 415 and the controller / processor 440; the second transceiver 1302 includes the attached Figure 4 The transmitter / receiver 416 (including the antenna 460), the receive processor 412 and the controller / processor 440 in the embodiment.

[0627] In embodiment 13, the first transmitter 1301 sends a first information block and a second information block, the first information block indicates at least one full-duplex symbol, the second information block indicates a first RO set and a second RO set, and the ROs in the first RO set occupy at least one full-duplex symbol in the time domain; the second transceiver 1302 sends a first SSB and receives a first PRACH in a target RO; wherein the target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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 using the RO in the first RO set to transmit the PRACH; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

[0628] As an embodiment, for the initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set; otherwise, the target RO set only includes the second RO set.

[0629] As an embodiment, the second information block indicates a second value; when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value, and the second value is a maximum number of transmissions of a random access preamble.

[0630] As an embodiment, when the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time is equal to a random value between 0 and a maximum backoff time, and the maximum backoff time is configured or predefined.

[0631] As an embodiment, the value of the second counter is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH depends on the target receiving power of the first PRACH; the target receiving power depends on the target receiving power of the previous random access preamble.

[0632] As an embodiment, the first transmitter 1301 sends a third information block, where the third information block indicates a first RO pool, and ROs located on non-full-duplex symbols in the first RO pool belong to the second RO set.

[0633] As an embodiment, the ROs in the first RO set and the ROs in the second RO set are respectively mapped to a synchronous broadcast signal.

[0634] Those skilled in the art will appreciate that all or part of the steps in the above method can be performed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, the various module units in the above embodiment can be implemented in the form of hardware or software functional modules. This application is not limited to any specific combination of software and hardware. The terminal or base station or UE or terminal in this application includes but is not limited to mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft, test equipment, test instruments, and other equipment. The base station equipment or base station or network-side equipment in this application includes but is not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes (TRPs), relay satellites, satellite base stations, aerial base stations, test equipment, test instruments, and other equipment.

[0635] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A 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 at least one full-duplex symbol, and the second information block indicates a first RO set and a second RO set, wherein the ROs in the first RO set occupy at least one full-duplex symbol in the time domain; receiving a first SSB and sending a first PRACH in a target RO; Among them, the target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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, and the value of the first counter is equal to the count value of PRACH transmitted using the RO in the first RO set; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

2. The method according to claim 1, characterized in that For an initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set; otherwise, the target RO set only includes the second RO set.

3. The method according to any one of claims 1 or 2, characterized in that: The second information block indicates a second value; when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value, and the second value is a maximum transmission number of a random access preamble.

4. The method according to any one of claims 1 to 3, characterized in that: When the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time is equal to a random value between 0 and a maximum backoff time, and the maximum backoff time is configured or predefined.

5. The method according to any one of claims 1 to 4, characterized in that: The value of the second counter is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH depends on the target receiving power of the first PRACH; the target receiving power depends on the target receiving power of the previous random access preamble.

6. The method according to any one of claims 1 to 5, characterized in that: The method includes receiving a third information block, wherein the third information block indicates a first RO pool, wherein ROs in the first RO pool located on non-full-duplex symbols belong to the second RO set.

7. The method according to any one of claims 1 to 6, characterized in that: The ROs in the first RO set and the ROs in the second RO set are respectively mapped to a synchronous broadcast signal.

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 at least one full-duplex symbol, and the second information block indicates a first RO set and a second RO set, wherein the ROs in the first RO set occupy at least one full-duplex symbol in the time domain; Sending a first SSB and receiving a first PRACH in a target RO; Among them, the target RO is an RO included in the target RO set and associated with the first SSB, and the target RO set includes at least the second RO set; whether the target RO set includes the first RO set 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, and the value of the first counter is equal to the count value of PRACH transmitted using the RO in the first RO set; the first RSRP is the RSRP for downlink path loss reference; the second information block indicates the first threshold and the first numerical value.

10. The method according to claim 9, characterized in that For an initial random access process, the value of the first counter is set to 1, and when the first RSRP is greater than the first threshold, the target RO set includes the first RO set; otherwise, the target RO set only includes the second RO set.

11. The method according to any one of claims 9 or 10, characterized in that: The second information block indicates a second value; when the value of the first counter is equal to the sum of the first value plus 1, the target RO set only includes the second RO set and activates the second value, and the second value is a maximum transmission number of a random access preamble.

12. The method according to any one of claims 9 to 11, characterized in that: When the value of the first counter is equal to the sum of the first value plus 1, random access resource selection is initiated in the second RO set; otherwise, random access resource selection is initiated in the target RO set after a first backoff time, and the first backoff time is equal to a random value between 0 and a maximum backoff time, and the maximum backoff time is configured or predefined.

13. The method according to any one of claims 9 to 12, characterized in that: The value of the second counter is equal to the count value of PRACH transmission using the RO in the target RO set, and the value of the second counter is greater than 1; the transmission power of the first PRACH depends on the target receiving power of the first PRACH; the target receiving power depends on the target receiving power of the previous random access preamble.

14. The method according to any one of claims 9 to 13, characterized in that: The method includes receiving a third information block, wherein the third information block indicates a first RO pool, wherein ROs in the first RO pool located on non-full-duplex symbols belong to the second RO set.

15. The method according to any one of claims 9 to 14, characterized in that: The ROs in the first RO set and the ROs in the second RO set are respectively mapped to a synchronous broadcast signal.

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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