Method and device in terminal for wireless communication

Abstract

The invention discloses a method and a device in a terminal for wireless communication. A terminal receives a first information block, wherein the first information block indicates a PRACH configuration index; a terminal receives a first PDCCH, wherein the first PDCCH carries a first domain; the terminal sends the first PRACH; when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates one symbol type, the opportunity occupied by the first PRACH comprises at least one symbol in a time domain, and the symbol type of the at least one symbol is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates a plurality of PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the plurality of PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH. The random access performance is improved.

Description

Technical Field

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

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

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

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

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

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

[0007] receiving a first information block, the first information block indicating at least one PRACH configuration index;

[0008] Receiving a first PDCCH, where the first PDCCH carries a first domain;

[0009] Sending a first PRACH, where the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence;

[0010] Among them, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes a symbol type of at least one symbol in the time domain, which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0011] As an embodiment, a field in a PDCCH order is interpreted according to the number of PRACH configuration indexes, thereby supporting a unified PDCCH order indication for different random access configurations in SBFD operation, simplifying the design while reducing signaling overhead.

[0012] As an embodiment, whether the random access initiated is for SBFD symbols is indicated in the PDCCH command, so that the network can configure random access according to interference conditions or different spatial characteristics, thereby improving the performance of random access.

[0013] According to one aspect of the present application, the above method is characterized in that the opportunity occupied by the first PRACH is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capabilities.

[0014] According to one aspect of the present application, the above method is characterized in that it includes:

[0015] receiving a second information block;

[0016] The second information block indicates a target sub-band, and the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and that the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

[0017] According to one aspect of the present application, the above method is characterized in that the length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

[0018] According to one aspect of the present application, the above method is characterized in that the first PDCCH carries a second domain, the second domain carried by the first PDCCH indicates the index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponds to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponds to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0019] According to one aspect of the present application, the above method is characterized in that it includes:

[0020] sending a third information block;

[0021] The third information block is used to indicate at least one capability parameter of a sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

[0022] According to one aspect of the present application, the above method is characterized in that the first information block is used to determine the power boost step, the first PDCCH is used to determine the first count value, and the power boost step and the first count value are used together to determine the transmission power value of the first PRACH.

[0023] The present application discloses a method used in a base station, characterized by comprising:

[0024] Sending a first information block, wherein the first information block indicates at least one PRACH configuration index;

[0025] Sending a first PDCCH, where the first PDCCH carries a first domain;

[0026] receiving a first PRACH, where the first PDCCH triggers sending of the first PRACH, and the first PRACH carries a random access preamble sequence;

[0027] Among them, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes a symbol type of at least one symbol in the time domain, which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0028] According to one aspect of the present application, the above method is characterized in that the opportunity occupied by the first PRACH is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capabilities.

[0029] According to one aspect of the present application, the above method is characterized in that it includes:

[0030] sending a second information block;

[0031] The second information block indicates a target sub-band, and the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and that the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

[0032] According to one aspect of the present application, the above method is characterized in that the length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

[0033] According to one aspect of the present application, the above method is characterized in that the first PDCCH carries a second domain, the second domain carried by the first PDCCH indicates the index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponds to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponds to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0034] According to one aspect of the present application, the above method is characterized in that it includes:

[0035] receiving a third information block;

[0036] The third information block is used to indicate at least one capability parameter of a sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

[0037] According to one aspect of the present application, the above method is characterized in that the first information block is used to determine the power boost step, the first PDCCH is used to determine the first count value, and the power boost step and the first count value are used together to determine the transmission power value of the first PRACH.

[0038] The present application discloses a terminal, characterized in that it includes:

[0039] A first receiver receives a first information block, wherein the first information block indicates at least one PRACH configuration index;

[0040] The first receiver receives a first PDCCH, where the first PDCCH carries a first domain;

[0041] A first transmitter sends a first PRACH, where the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence;

[0042] Among them, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes a symbol type of at least one symbol in the time domain, which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0043] The present application discloses a base station, characterized in that it includes:

[0044] A second transmitter sends a first information block, where the first information block indicates at least one PRACH configuration index;

[0045] The second transmitter sends a first PDCCH, where the first PDCCH carries a first domain;

[0046] A second receiver receives a first PRACH, where the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence;

[0047] Among them, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes a symbol type of at least one symbol in the time domain, which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0049] Figure 1 A flowchart of a first information block, a first PDCCH and a first PRACH according to an embodiment of the present application is shown;

[0050] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0051] Figure 3 A schematic diagram showing a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application is shown;

[0052] Figure 4 A schematic diagram showing a terminal device and a base station device according to an embodiment of the present application is shown;

[0053] Figure 5 A wireless signal transmission flow chart according to an embodiment of the present application is shown;

[0054] Figure 6 A schematic diagram showing a first threshold according to an embodiment of the present application is shown;

[0055] Figure 7 A schematic diagram showing a second threshold according to an embodiment of the present application is shown;

[0056] Figure 8 A schematic diagram showing a third threshold value according to an embodiment of the present application is shown;

[0057] Fig. 9 A schematic diagram showing a first opportunity set and a second opportunity set according to an embodiment of the present application is shown;

[0058] Fig.10 A schematic diagram of a first domain according to an embodiment of the present application is shown;

[0059] Fig.11 A schematic diagram showing a power boost step length according to an embodiment of the present application is shown;

[0060] Fig.12 A structural block diagram of a processing device in a terminal device according to an embodiment of the present application is shown;

[0061] Fig.13 A structural block diagram of a processing device in a base station device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0062] 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, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0063] Example 1

[0064] Embodiment 1 illustrates a flowchart 100 of a first information block, a first PDCCH, and a first PRACH according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not limit the temporal sequence between the steps represented.

[0065] In embodiment 1, the terminal device in the present application receives a first information block in step 101, and the first information block indicates at least one PRACH configuration index; the terminal device in the present application receives a first PDCCH in step 102, and the first PDCCH carries a first domain; the terminal device in the present application sends a first PRACH in step 103, and the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence; wherein, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes at least one symbol in the time domain, and the symbol type is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0066] As an embodiment, the first information block is transmitted via an air interface or a wireless interface.

[0067] As an embodiment, the first information block includes all or part of a high-layer signaling or a physical layer signaling.

[0068] As an embodiment, the first information block includes all or part of an RRC (Radio Resource Control) layer signaling, or the first information block includes all or part of a MAC (Medium Access Control) layer signaling.

[0069] As an embodiment, the first information block includes all or part of a system information block (SIB, System Information Block).

[0070] As an embodiment, the first information block is user equipment specific (UE-specific), or the first information block is cell specific (cell-specific).

[0071] As an embodiment, the first information block is configured per cell.

[0072] As an embodiment, the first information block is for the cell to which the first PDCCH belongs.

[0073] As an embodiment, the first information block is for a cell other than the cell to which the first PDCCH belongs.

[0074] As an embodiment, the first information block is configured per cell group or per cell list.

[0075] As an embodiment, the first information block is configured per subband. As a subsidiary embodiment of the above embodiment, configuring the first information block per subband can improve the configuration flexibility of the PRACH opportunity in full-duplex mode.

[0076] As an embodiment, the first information block is configured for a carrier (per carrier). As a subsidiary embodiment of the above embodiment, per-carrier configuration can reduce complexity.

[0077] As an embodiment, the first information block is configured for a bandwidth part (BWP, bandwidth Part) (Per BWP). As a subsidiary embodiment of the above embodiment, the existing design can be reused for BWP configuration to reduce standardization work.

[0078] As an embodiment, the first information block includes part or all of the fields in IE "RACH-ConfigDedicated".

[0079] As an embodiment, the first information block includes the field "CFRA" or the field "CFRA-TwoStep-r16".

[0080] As an embodiment, the first information block includes the field "msg1-FDM" or the field "msgA-RO-FDM-r16".

[0081] As an embodiment, the first information block includes part or all of the fields in the IE "rach-ConfigGeneric".

[0082] As an embodiment, the first information block includes part or all of the fields in the IE "SI-RequestConfig".

[0083] As an embodiment, the first information block includes part or all of the fields in IE "RACH-ConfigCommon".

[0084] As an embodiment, the first information block includes part or all of the fields in IE "BWP-UplinkCommon".

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

[0086] As an embodiment, the first information block includes part or all of the fields in IE "RACH-ConfigGenericTwoStepRA".

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

[0088] As an embodiment, the first information block includes part or all of the fields in IE "RACH-ConfigCommonTwoStepRA".

[0089] As an embodiment, the first information block includes part or all of the fields in a DCI format. As a subsidiary embodiment of the above embodiment, the first information block includes DCI to provide greater flexibility.

[0090] As an embodiment, the first information block is transmitted on a PDCCH (physical downlink control channel).

[0091] As an embodiment, a PRACH configuration index (configurationindex) indicated by the first information block is an index in a random access configuration table.

[0092] As an embodiment, a PRACH configuration index (configurationindex) indicated by the first information block is a row index in a random access configuration table.

[0093] As an embodiment, a PRACH configuration index (configuration index) indicated by the first information block is an index in a random access configuration table for frequency range 1 (FR1, frequency range 1) and unpaired spectrum.

[0094] As an embodiment, a PRACH configuration index (configurationindex) indicated by the first information block is an index in a random access configuration table for frequency range 1 (FR1, frequency range 1) and supplemental uplink.

[0095] As an embodiment, a PRACH configuration index (configuration index) indicated by the first information block is an index in a random access configuration table for frequency range 2 (FR2, frequency range 2) and unpaired spectrum.

[0096] As an embodiment, a PRACH configuration index (configurationindex) indicated by the first information block is an index of a random access configuration combination in multiple random access configuration combinations, and each random access configuration combination in the multiple random access configuration combinations includes a preamble format, frame distribution, subframe number, start symbol, the number of PRACH time slots in a subframe, the number of time domain PRACH opportunities in a PRACH time slot, and the PRACH duration.

[0097] As an embodiment, "the first information block indicates at least one PRACH configuration index" includes: all or part of the first information block explicitly or implicitly indicates at least one PRACH configuration index.

[0098] As an embodiment, "the first information block indicates at least one PRACH configuration index" includes: the first information block indicates one or more PRACH configuration indexes.

[0099] As an embodiment, "the first information block indicates at least one PRACH configuration index" includes: the first information block indicates one or two PRACH configuration indexes.

[0100] As an embodiment, the first PDCCH is a baseband signal of a PDCCH (physical downlink control channel).

[0101] As an embodiment, the first PDCCH is a radio frequency signal of the PDCCH.

[0102] As an embodiment, the first PDCCH is a PDCCH order.

[0103] As an embodiment, the first PDCCH carries DCI (downlink control information) used for PDCCH commands.

[0104] As an embodiment, the first PDCCH carries all or part of the fields in DCI format 1_0.

[0105] As an embodiment, DCI format 1_0 is used to generate the first PDCCH.

[0106] As an embodiment, the value of the frequency domain resource assignment field included in the DCI carried by the first PDCCH is equal to all "1".

[0107] As an embodiment, all bits in the frequency domain resource assignment field included in the DCI carried by the first PDCCH are set to "1".

[0108] As an embodiment, the CRC of the DCI format of the DCI carried by the first PDCCH is scrambled by C-RNTI (Cell-Radio Network Temporary Identifier).

[0109] As an embodiment, the PDCCH candidates occupied by the first PDCCH belong to a common search space (CSS, common search space) set.

[0110] As an embodiment, the PDCCH candidates occupied by the first PDCCH belong to a user equipment specific search space (USS, UE specific search space) set.

[0111] As an embodiment, the technical feature "the first PDCCH carries the first domain" includes the following meaning: the format adopted by the DCI carried by the first PDCCH includes the first domain.

[0112] As an embodiment, the technical feature "the first PDCCH carries the first domain" includes the following meaning: the DCI including the first domain is transmitted on the first PDCCH.

[0113] As an embodiment, the technical feature "the first PDCCH carries the first domain" includes the following meaning: the DCI including the first domain is mapped to the first PDCCH.

[0114] As an embodiment, the technical feature "the first PDCCH carries the first domain" includes the following meaning: the DCI including the first domain is used to generate the first PDCCH.

[0115] As an embodiment, the technical feature "the first PDCCH carries the first domain" includes the following meaning: the information bits of the DCI carried by the first PDCCH include the bits occupied by the first domain.

[0116] As an embodiment, the first field is a SBFD symbol indicator.

[0117] As an embodiment, the first field is a configuration type indicator (Configuration type indicator).

[0118] As an embodiment, the first field is a configuration index type indicator (configuration index type indicator).

[0119] As an embodiment, the first field is a re-interpretation of a legacy field.

[0120] As an embodiment, the first field is a re-interpretation of a reserved bit.

[0121] As an embodiment, the first field occupies at least one reserved bit in the DCI format including the first field.

[0122] As an embodiment, for a PDCCH order other than a SBFD operation, any bit occupied by the first field is a reserved bit.

[0123] As an embodiment, the first information block is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is used as the first domain.

[0124] As an embodiment, the information block other than the first information block is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is used as the first domain.

[0125] As an embodiment, at least one capability parameter reported by the terminal device is used to determine that at least one reserved bit in the DCI carried by the first PDCCH is used as the first domain.

[0126] As an embodiment, at least one capability parameter reported by the terminal device and the first information block are used together to determine that at least one reserved bit in the DCI carried by the first PDCCH is used as the first domain.

[0127] As an embodiment, the first PRACH (physical random access channel) is a radio frequency signal or a baseband signal of PRACH.

[0128] As an embodiment, the first PRACH is used for a random access procedure.

[0129] As an embodiment, the first PRACH is used for LTM (L1 / L2-triggered mobility) process.

[0130] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first PRACH" includes the following meaning: the first PDCCH is used to explicitly or implicitly indicate the resources occupied by the PRACH.

[0131] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the PRACH" includes the following meaning: the first PDCCH is used to explicitly or implicitly indicate the random access preamble sequence carried by the first PRACH.

[0132] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first PRACH" includes the following meaning: the first PDCCH is used to explicitly or implicitly indicate the index of the SS / PBCH associated with the first PRACH.

[0133] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first PRACH" includes the following meaning: the first PDCCH is used by the sender of the first PDCCH in this application to trigger (trigger / initiate) the sending of the first PRACH.

[0134] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first PRACH" includes the following meaning: the first PDCCH is used to explicitly or implicitly configure or schedule at least one parameter of the first PRACH.

[0135] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first PRACH" includes the following meaning: the sending of the first PRACH is a response to the first PDCCH.

[0136] As an embodiment, the technical feature "the first PDCCH is used to trigger the sending of the first PRACH" includes the following meaning: the first PDCCH is used to explicitly or implicitly instruct the terminal device to send the first PRACH.

[0137] As an embodiment, the technical feature "the first PRACH carries a random access preamble sequence" includes the following meaning: the first PRACH is used for transmission of a random access preamble sequence.

[0138] As an embodiment, the technical feature "the first PRACH carries a random access preamble sequence" includes the following meaning: the random access preamble sequence is transmitted on the first PRACH.

[0139] As an embodiment, the technical feature "the first PRACH carries a random access preamble sequence" includes the following meaning: the random access preamble sequence is used to generate the first PRACH.

[0140] As an embodiment, the technical feature "the first PRACH carries a random access preamble sequence" includes the following meaning: the random access preamble sequence is mapped to the physical resources allocated to the first PRACH.

[0141] As an embodiment, a ZC (Zadoff-Chu) sequence is used to generate a random access preamble sequence carried by the first PRACH.

[0142] As an embodiment, a pseudo-random sequence is used to generate a random access preamble sequence carried by the first PRACH.

[0143] As an embodiment, the random access preamble sequence carried by the first PRACH adopts preamble sequence format 0.

[0144] As an embodiment, the random access preamble sequence carried by the first PRACH adopts preamble sequence format 1.

[0145] As an embodiment, the random access preamble sequence carried by the first PRACH adopts preamble sequence format 2.

[0146] As an embodiment, the random access preamble sequence carried by the first PRACH adopts preamble sequence format 3.

[0147] As an embodiment, the random access preamble sequence carried by the first PRACH adopts one of the preamble sequence formats A1, A2, A3, B1, B2, B3, B4, C0, and C2.

[0148] As an embodiment, the preamble sequence format adopted by the random access preamble sequence carried by the first PRACH is configured by the first information block.

[0149] As an embodiment, the sequence length of the random access preamble sequence carried by the first PRACH is equal to 139 or 571 or 839 or 1151.

[0150] As an embodiment, "when the first information block indicates only one PRACH configuration index" includes: when the first information block includes only an indication of one PRACH configuration index.

[0151] As an embodiment, "when the first information block indicates only one PRACH configuration index" includes: when the first information block also indicates information other than the PRACH configuration index, but for the PRACH configuration index, the first information block only indicates one.

[0152] As an embodiment, the number of possible symbol types for a symbol is equal to two.

[0153] As an embodiment, the number of possible symbol types for a symbol is greater than two.

[0154] As an embodiment, the symbol type of a symbol is one of T1 symbol types, T1 is a positive integer greater than 1, and the T1 symbol types are predefined or configurable. As a subsidiary embodiment of the above embodiment, the T1 symbol types include SBFD symbols and non-SBFD symbols. As a subsidiary embodiment of the above embodiment, the T1 symbol types include SBFD symbols and symbols indicated as uplink by "tdd-UL-DL-ConfigCommon". As a subsidiary embodiment of the above embodiment, the T1 symbol types include SBFD symbols indicated as downlink by "tdd-UL-DL-ConfigCommon" and symbols of other types; as a subsidiary embodiment of the above embodiment, the T1 symbol types include SBFD symbols indicated as downlink by "tdd-UL-DL-ConfigCommon", flexible SBFD symbols indicated by "tdd-UL-DL-ConfigCommon", uplink symbols indicated by "tdd-UL-DL-ConfigCommon", and flexible non-SBFD symbols indicated by "tdd-UL-DL-ConfigCommon"; as a subsidiary embodiment of the above embodiment, the T1 symbol types include SBFD symbols indicated as downlink by "tdd-UL-DL-ConfigCommon" and symbols indicated as uplink or flexible by "tdd-UL-DL-ConfigCommon"; as a subsidiary embodiment of the above embodiment, the T1 symbol types include symbols in which the SBFD subband is configured in the time domain and symbols in which the SBFD subband is not configured in the time domain. As an auxiliary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 TCI states respectively. As an auxiliary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 radio frequency links respectively. As an auxiliary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 beams respectively. As an auxiliary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 interference elimination schemes respectively. As an auxiliary embodiment of the above embodiment, the T1 symbol types are symbols corresponding to T1 QCL relationships respectively. As an auxiliary embodiment of the above embodiment, T1 is equal to 2. As an auxiliary embodiment of the above embodiment, T1 is greater than 2. As an auxiliary embodiment of the above embodiment, the T1 symbol types depend on the capabilities of the terminal. As an auxiliary embodiment of the above embodiment, the terminal cannot be considered to have the same QCL parameters (or QCL assumptions) in two time domain symbols belonging to different symbol types in the T1 symbol types.

[0155] As an embodiment, symbols in the time domain are divided into multiple types, and the symbol type of a symbol is one of the multiple types.

[0156] As an embodiment, the symbol type of a symbol is a SBFD symbol or a non-SBFD symbol.

[0157] As an embodiment, the symbol type of a symbol is a symbol configured with SBFD or a symbol not configured with SBFD.

[0158] As an embodiment, the symbol type of a symbol is a symbol in a SBFD time slot or a symbol in a non-SBFD time slot.

[0159] As an embodiment, the symbol type of a symbol is a symbol in which a subband of SBFD is configured in the time domain or a symbol in which a subband of SBFD is not configured in the time domain.

[0160] As an embodiment, the symbol type of a symbol is a time domain symbol supporting full duplex or a symbol not supporting full duplex.

[0161] As an embodiment, the symbol type of a symbol is a symbol to which SBFD is applicable or a symbol to which SBFD is not applicable.

[0162] As an embodiment, the symbol type of a symbol is a symbol that can be used for uplink transmission and downlink transmission at the same time or a symbol that cannot be used for uplink transmission and downlink transmission at the same time.

[0163] As an embodiment, the symbol type of a symbol is a downlink SBFD symbol or other types of symbols indicated by “tdd-UL-DL-ConfigCommon”.

[0164] As an embodiment, the symbol type of a symbol is one of a SBFD symbol indicated as a downlink by "tdd-UL-DL-ConfigCommon", a flexible SBFD symbol indicated as a downlink by "tdd-UL-DL-ConfigCommon", an uplink symbol indicated as a "tdd-UL-DL-ConfigCommon", and a flexible non-SBFD symbol indicated as a "tdd-UL-DL-ConfigCommon".

[0165] As an embodiment, the symbol type of a symbol is a SBFD symbol indicated as a downlink by “tdd-UL-DL-ConfigCommon” or an uplink or flexible symbol indicated as a downlink by “tdd-UL-DL-ConfigCommon”;

[0166] As an embodiment, both downlink and flexible symbols are taken into consideration to expand the configuration flexibility.

[0167] As an embodiment, only downlink symbols are considered, which simplifies system design.

[0168] As an embodiment, "the first field carried by the first PDCCH indicates a symbol type" includes: all bits or part of the bits in the first field carried by the first PDCCH explicitly or implicitly indicate a symbol type.

[0169] As an embodiment, "the first field carried by the first PDCCH indicates a symbol type" includes: the first field carried by the first PDCCH indicates a symbol type from multiple candidate symbol types.

[0170] As an embodiment, "the first field carried by the first PDCCH indicates a symbol type" includes: the first field carried by the first PDCCH indicates a symbol type of a symbol included in a RO (RAoccasion, random access opportunity) in the time domain.

[0171] As an embodiment, "the first field carried by the first PDCCH indicates a symbol type" includes: the first field carried by the first PDCCH indicates whether the random access targeted by RO (RAoccasion, random access opportunity) in the time domain is a random access on an SBFD symbol or a random access on a non-SBFD symbol.

[0172] As an embodiment, the opportunity occupied by the first PRACH is the opportunity occupied or mapped by the first PRACH in the time-frequency domain.

[0173] As an embodiment, the opportunity occupied by the first PRACH is a PRACH opportunity.

[0174] As an embodiment, the opportunity occupied by the first PRACH is RO (RACH Occasion).

[0175] As an embodiment, the opportunity occupied by the first PRACH includes the opportunity (occasion) of the time-frequency resources occupied or mapped by the first PRACH.

[0176] As an embodiment, the symbol type in which the opportunity occupied by the first PRACH includes at least one symbol in the time domain is the symbol type in which the opportunity occupied by the first PRACH includes all symbols in the time domain.

[0177] As an embodiment, the symbol type of the opportunity occupied by the first PRACH including at least one symbol in the time domain is the symbol type of the opportunity occupied by the first PRACH including part of the symbols in the time domain.

[0178] As an embodiment, "the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes" includes: the first domain carried by the first PDCCH explicitly or implicitly indicates a PRACH configuration index from the multiple PRACH configuration indexes.

[0179] As an embodiment, "the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes" includes: the first domain carried by the first PDCCH indicates an identifier, index or order of a PRACH configuration index from the multiple PRACH configuration indexes.

[0180] As an embodiment, the opportunity indicated by the PRACH configuration index indicated by the first field carried by the first PDCCH is an opportunity for occurrence of multiple periods indicated or configured by the PRACH configuration index indicated by the first field carried by the first PDCCH.

[0181] As an embodiment, the PRACH configuration index indicated by the first domain carried by the first PDCCH indicates a random access configuration combination, and the random access configuration combination includes a preamble format, frame distribution, a subframe number, a start symbol, the number of PRACH time slots in a subframe, the number of time domain PRACH opportunities in a PRACH time slot and the PRACH duration, and the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH is an opportunity included in, indicated by or configured by the random access combination.

[0182] As an embodiment, the PRACH configuration index indicated by the first domain carried by the first PDCCH indicates a random access configuration combination, and the random access configuration combination includes a preamble format, frame distribution, subframe number, starting symbol, the number of PRACH time slots in a subframe, the number of time domain PRACH opportunities in a PRACH time slot and the PRACH duration. The opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH is consistent with the frame distribution, subframe number, starting symbol, the number of PRACH time slots in a subframe, the number of time domain PRACH opportunities in a PRACH time slot and the PRACH duration included in the random access combination.

[0183] As an embodiment, "the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the opportunity occupied by the first PRACH is one of the multiple opportunities indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0184] As an embodiment, "the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the opportunity occupied by the first PRACH conforms to the random access configuration combination indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH, and the random access configuration combination includes the preamble format, frame distribution, subframe number, start symbol, the number of PRACH time slots in a subframe, the number of time domain PRACH opportunities in a PRACH time slot and the PRACH duration.

[0185] As an embodiment, "the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the PRACH configuration index indicated by the first domain carried by the first PDCCH is used to determine the opportunity occupied by the first PRACH.

[0186] As an embodiment, "the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the opportunity occupied by the first PRACH depends on the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0187] As an embodiment, the full-duplex configuration includes SBFD configuration.

[0188] As an embodiment, the full-duplex configuration includes the configuration of SBFD symbols.

[0189] As an embodiment, the full-duplex configuration includes the configuration of an uplink sub-band.

[0190] As an embodiment, the full-duplex configuration includes the configuration of the time domain distribution of the uplink sub-frequency band.

[0191] As an embodiment, the full-duplex configuration includes indicating which symbols are SBFD symbols.

[0192] As an embodiment, “the symbol type of a symbol depends on the full-duplex configuration” includes: the full-duplex configuration is used to determine the symbol type of a symbol.

[0193] As an embodiment, “the symbol type of a symbol depends on the full-duplex configuration” includes: the symbol type of any symbol depends on the full-duplex configuration.

[0194] As an embodiment, “the symbol type of a symbol depends on the full-duplex configuration” includes: whether a symbol is a SBFD symbol depends on the full-duplex configuration.

[0195] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: whether a symbol is a downlink SBFD symbol indicated by the TDD uplink and downlink configuration depends on the full-duplex configuration.

[0196] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: whether a symbol is indicated as a downlink SBFD symbol by the TDD uplink and downlink configuration, or as a flexible SBFD symbol or a non-SBFD symbol by the TDD uplink and downlink configuration depends on the full-duplex configuration.

[0197] As an embodiment, “the symbol type of a symbol depends on the full-duplex configuration” includes: the full-duplex configuration explicitly or implicitly indicates the symbol type of a symbol.

[0198] As an embodiment, “the symbol type of a symbol depends on the full-duplex configuration” includes: the full-duplex configuration indicates that at least one symbol is a SBFD symbol.

[0199] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: the full-duplex configuration indicates that at least one symbol is a SBFD symbol from a time window.

[0200] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: a symbol that overlaps with a symbol indicated (or provided) by the full-duplex configuration in the time domain is a SBFD symbol.

[0201] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: symbols indicated as downlink by tdd-UL-DL-ConfigCommon that overlap with the SBFD symbols indicated by the full-duplex configuration are one type of symbols, symbols indicated as flexible by tdd-UL-DL-ConfigCommon that overlap with the SBFD symbols indicated by the full-duplex configuration are another type of symbols, and symbols that do not overlap with the SBFD symbols indicated by the full-duplex configuration are a third type of symbols.

[0202] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: the full-duplex configuration indicates at least one symbol according to the reference subcarrier spacing, and any one time domain symbol indicated by tdd-UL-DL-ConfigCommon as a downlink that overlaps with the symbol indicated by the full-duplex configuration is a SBFD symbol, and the reference subcarrier spacing is predefined or configured by signaling. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is predefined, which means that the reference subcarrier spacing is fixed. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is predefined, which means that the reference subcarrier spacing is related to the frequency range (FR). As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is predefined, which means that the reference subcarrier spacing is related to the band index. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is predefined, which means that the reference subcarrier spacing is equal to the subcarrier spacing of the initial downlink BWP (Bandwidth Part). As a subsidiary embodiment of the above embodiment, the reference subcarrier spacing is predefined, which means that the reference subcarrier spacing is equal to the subcarrier spacing of the initial uplink BWP (Bandwidth Part).

[0203] As an embodiment, the "symbol type of a symbol depends on the full-duplex configuration" includes: the full-duplex configuration includes a SLIV, and the starting SBFD symbol and the number of consecutive symbols included in a periodic time window are used to generate the SLIV included in the full-duplex configuration.

[0204] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: the full-duplex configuration includes a SLIV, the starting SBFD symbol in a periodic time window and the number of consecutive symbols included are used to generate the SLIV included in the full-duplex configuration, the downlink overlapping SBFD symbols among the included consecutive symbols and indicated by tdd-UL-DL-ConfigCommon are one type of symbols, the flexibly overlapping SBFD symbols among the included consecutive symbols and indicated by tdd-UL-DL-ConfigCommon are one type of symbols, and the uplink overlapping SBFD symbols among the included consecutive symbols and indicated by tdd-UL-DL-ConfigCommon and symbols other than the included consecutive symbols are a third type of symbols.

[0205] As an embodiment, "the symbol type of a symbol depends on the full-duplex configuration" includes: the full-duplex configuration includes a SLIV, the starting SBFD symbol in a periodic time window and the number of consecutive symbols included are used to generate the SLIV included in the full-duplex configuration, the SBFD symbols overlapping the downlink among the included consecutive symbols and indicated by tdd-UL-DL-ConfigCommon are one type of symbols, and all other symbols are another type of symbols.

[0206] As an embodiment, the symbol type of a symbol also depends on the TDD uplink and downlink configuration.

[0207] Example 2

[0208] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in the attached Figure 2 Attached Figure 2A diagram illustrating a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR / evolved Node B (gNB / eNB) 203 and other gNBs (eNBs) 204. gNB (eNB) 203 provides user and control plane protocol terminations toward UE 201. gNB (eNB) 203 can be connected to other gNBs (eNBs) 204 via an Xn / X2 interface (e.g., backhaul). gNB (eNB) 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting receiving node), or some other suitable term. gNB (eNB) 203 provides an access point to 5GC / EPC 210 for UE 201. Examples of UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, 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 Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, a test device, a test instrument, a test tool, or any other similarly functional device.A person skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. The gNB (eNB) 203 is connected to the 5GC / EPC 210 via an S1 / NG interface. The 5GC / EPC 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, an S-GW (Service Gateway) / UPF (UserPlane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF211 is the control node that handles the signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet services 230. Internet services 230 include operator-corresponding Internet protocol services, which may specifically include Internet, intranet, IMS (IP Multimedia Subsystem) and packet switching streaming services.

[0209] As an embodiment, the UE201 corresponds to the terminal in this application.

[0210] As an embodiment, the UE 201 supports transmission in a flexible duplex mode.

[0211] As an embodiment, the gNB (eNB) 201 corresponds to the base station in this application.

[0212] As an embodiment, the gNB (eNB) 201 supports transmission in flexible duplex mode.

[0213] Example 3

[0214] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. 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 the terminal (UE or gNB) and the base station (gNB or UE) is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the terminal and the base station through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the base station. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and provides support for inter-zone mobility of terminals between base stations. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between terminals. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the base station and the terminal. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the terminal and the base station in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services.Although not shown, the terminal device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, a server, etc.).

[0215] As an example, Figure 3 The wireless protocol architecture in is applicable to the terminal described in this application.

[0216] As an example, Figure 3 The wireless protocol architecture in is applicable to the base station described in this application.

[0217] 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.

[0218] 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.

[0219] 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.

[0220] As an embodiment, the first PDCCH in the present application is generated by MAC302, or MAC352, or the PHY301, or PHY351.

[0221] As an embodiment, the first PRACH in the present application is generated in the PHY301 or PHY351.

[0222] Example 4

[0223] Embodiment 4 shows a schematic diagram of a terminal device and a base station device according to an embodiment of the present application, as shown in the attached figure. Figure 4 shown.

[0224] The terminal 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.

[0225] The base station 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.

[0226] In DL (Downlink), the upper layer packets are provided to the controller / processor 440. The controller / processor 440 implements the functions of the L2 layer and above. In DL, the controller / processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the terminal device 450 based on various priority metrics. The controller / processor 440 is also responsible for HARQ operations, retransmission of lost packets, and high-level signaling to the terminal device 450. The high-level information carried by the first information block and the second information block in the present application is generated in the controller / processor 440. The transmission processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation, such as the physical layer signal carrying the first information block and the physical layer signal carrying the second information block and the first PDCCH in the present application are completed in the transmission processor 415. The generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and / or multi-carrier symbol, and then mapped to the antenna 420 by the transmit processor 415 via the transmitter 416 and transmitted in the form of a radio frequency signal. At the receiving end, each receiver 456 receives the radio frequency signal through its corresponding antenna 460, and each receiver 456 recovers the baseband information modulated on the radio frequency carrier, and provides the baseband information to the receive processor 452. The receive processor 452 implements various signal reception processing functions of the L1 layer. The signal reception processing function includes receiving the physical layer signal carrying the first information block in the present application and the physical layer signal carrying the second information block in the present application, and receiving the first PDCCH, demodulating the multi-carrier symbols in the multi-carrier symbol stream based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK)), then descrambling, decoding and deinterleaving to recover the data or control transmitted by the base station device 410 on the physical channel, and then providing the data and control signals to the controller / processor 490. The controller / processor 490 is responsible for the L2 layer and above, and the controller / processor 490 interprets the high-level information. This includes interpreting the high-level information carried by the first information block and the second information block. The controller / processor may be associated with a memory 480 that stores program codes and data. The memory 480 may be referred to as a computer-readable medium.

[0227] In uplink (UL) transmission, similar to downlink transmission, high-layer information (including the third information block in the present application) is generated by the controller / processor 490 and then implemented by the transmit processor 455 for various signals (including the first PRACH in the present application) for the L1 layer (i.e., the physical layer) for transmission processing functions. The transmit processor 455 is mapped to the antenna 460 via the transmitter 456 and transmitted in the form of a radio frequency signal. The receiver 416 receives the radio frequency signal through its corresponding antenna 420, and each receiver 416 recovers the baseband information modulated onto the radio frequency carrier and provides the baseband information to the receive processor 412. The receive processor 412 implements various signal reception processing functions for the L1 layer (i.e., the physical layer), and then provides data and / or control signals to the controller / processor 440. The functions of the L2 layer implemented in the controller / processor 440 include interpreting the high-layer information. The controller / processor may be associated with a buffer 430 storing program code and data. The buffer 430 may be a computer-readable medium.

[0228] As an embodiment, the terminal device 450 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the terminal device 450 device at least: receives a first information block, the first information block indicates at least one PRACH configuration index; receives a first PDCCH, the first PDCCH carries a first domain; sends a first PRACH, the first PDCCH triggers the sending of the first PRACH, the first PRACH carries a random access preamble sequence; when the first information block indicates only one PRACH CH configuration index, the first field carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH in the time domain includes a symbol type of at least one symbol indicated by the first field carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first field carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first field carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0229] As an embodiment, the terminal device 450 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first information block, the first information block indicating at least one PRACH configuration index; receiving a first PDCCH, the first PDCCH carrying a first domain; sending a first PRACH, the first PDCCH triggering the sending of the first PRACH, the first PRACH carrying a random access preamble sequence; when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes at least one symbol in the time domain, the symbol type of which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0230] As an embodiment, the base station 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 base station device 410 device at least: sends a first information block, the first information block indicates at least one PRACH configuration index; sends a first PDCCH, the first PDCCH carries a first domain; receives a first PRACH, the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence; wherein, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes at least one symbol in the time domain, and the symbol type is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0231] As an embodiment, the base station 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, the first information block indicating at least one PRACH configuration index; sending a first PDCCH, the first PDCCH carrying a first domain; receiving a first PRACH, the first PDCCH triggering the sending of the first PRACH, the first PRACH carrying a random access preamble sequence; wherein, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes at least one symbol in the time domain, the symbol type of which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0232] As an embodiment, the terminal device 450 is a user equipment (UE).

[0233] As an embodiment, the terminal device 450 is a user equipment supporting flexible duplex mode transmission.

[0234] As an embodiment, the base station device 410 is a base station device (gNB / eNB).

[0235] As an embodiment, the base station device 410 is a base station device supporting transmission in a flexible duplex mode.

[0236] As an embodiment, the receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490 are used to receive the first information block in the present application.

[0237] 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 PDCCH in the present application.

[0238] As an embodiment, the transmitter 456 (including the antenna 460) and the transmit processor 455 are used to send the first PRACH in the present application.

[0239] As an embodiment, the receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490 are used to receive the second information block in the present application.

[0240] As an embodiment, the transmitter 456 (including the antenna 460), the transmission processor 455 and the controller / processor 490 are used to transmit the third information block in the present application.

[0241] As an embodiment, the transmitter 416 (including the antenna 420), the transmission processor 415 and the controller / processor 440 are used to send the first information block in the present application.

[0242] As an embodiment, the transmitter 416 (including the antenna 420), the transmission processor 415 and the controller / processor 440 are used to send the first PDCCH in this application.

[0243] As an embodiment, the receiver 416 (including the antenna 420) and the receiving processor 412 are used to receive the first PRACH in this application.

[0244] As an embodiment, the transmitter 416 (including the antenna 420), the transmission processor 415 and the controller / processor 440 are used to send the second information block in the present application.

[0245] As an embodiment, the receiver 416 (including the antenna 420), the receiving processor 412 and the controller / processor 440 are used to receive the third information block in the present application.

[0246] Example 5

[0247] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 In the example, the base station device N500 is a base station maintaining the service cell of the terminal device U550. It should be noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0248] for Base station equipment N500 , sending a first information block in step S501, sending a second information block in step S502, receiving a third information block in step S503, sending a first PDCCH in step S504, and receiving a first PRACH in step S505;

[0249] for Terminal device U550, receiving a first information block in step S551, receiving a second information block in step S552, sending a third information block in step S553, receiving a first PDCCH in step S554, and sending a first PRACH in step S555.

[0250] In embodiment 5, the first information block indicates at least one PRACH configuration index; the first PDCCH carries a first domain; the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence; when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the symbol type of the opportunity occupied by the first PRACH in the time domain includes at least one symbol of the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes. The opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration; the second information block indicates the target sub-band, and the validity of the opportunity occupied by the first PRACH depends on that the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured; the third information block is used to indicate at least one capability parameter of the sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

[0251] As an embodiment, the first information block is earlier than the second information block.

[0252] As an embodiment, the first information block is later than the second information block.

[0253] As an embodiment, the first information block and the second information block are transmitted through the same physical channel.

[0254] As an embodiment, the first information block and the second information block respectively include different IEs or fields included in the same IE.

[0255] As an embodiment, the second information block includes higher layer information or higher layer parameter configuration.

[0256] As an embodiment, the second information block includes one or more IEs included in an RRC layer signaling, or the second information block includes one or more fields included in an RRC layer signaling. As a subsidiary embodiment of the above embodiment, the second information block includes RRC layer information to reduce signaling overhead.

[0257] As an embodiment, the second information block includes part or all of the fields included in a SIB.

[0258] As an embodiment, the second information block is cell common (Cell Common) or the second information block is cell specific (Cell specific).

[0259] As an embodiment, the second information block is group common.

[0260] As an embodiment, the second information block is user equipment specific (UE specific or UE dedicated).

[0261] As an embodiment, the second information block is configured for a subband (per subband).

[0262] As an embodiment, the second information block is configured for a carrier (per carrier). As a subsidiary embodiment of the above embodiment, configuring SBFD per carrier reduces complexity.

[0263] As an embodiment, the second information block is configured for a bandwidth part (BWP, bandwidth Part) (Per BWP). As a subsidiary embodiment of the above embodiment, configuring SBFD per BWP can reuse the existing design and reduce standardization work.

[0264] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfigDedicated-r19".

[0265] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfigCommon-r19".

[0266] As an embodiment, the second information block includes part or all of the fields in IE "SBFDConfig-r19".

[0267] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfigCommon".

[0268] As an embodiment, the second information block includes part or all of the fields in the IE "CellGroupConfig".

[0269] As an embodiment, the second information block includes part or all of the fields in IE "SpCellConfig".

[0270] As an embodiment, the second information block includes part or all of the fields in the IE "SCellConfig".

[0271] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfigCommonSIB".

[0272] As an embodiment, the second information block includes part or all of the fields in the IE "ServingCellConfig".

[0273] As an embodiment, the second information block includes part or all of the fields in DCI (downlink control information) format 2_N, where N is a non-negative integer.

[0274] As an embodiment, the second information block includes part or all of the fields in a DCI format. As a subsidiary embodiment of the above embodiment, the second information block includes DCI to provide greater flexibility.

[0275] As an embodiment, the second information block is transmitted on a PDCCH (physical downlink control channel).

[0276] As an embodiment, the second information block configures a time slot or symbol of SBFD (Subband non-overlapping Full Duplex).

[0277] As an embodiment, the second information block configures at least one of an uplink subband (UL subband), a downlink subband (DL subband) or a guard band (guardband) of the SBFD.

[0278] As an embodiment, the second information block configuration supports time slots or symbols of SBFD.

[0279] Example 6

[0280] Embodiment 6 illustrates a schematic diagram of a first threshold value according to an embodiment of the present application, as shown in the attached figure. Figure 6 As shown in the attached Figure 6 In each case, the wireless charging rectangle represents a time slot, "DL" represents that the symbol in the time slot is a downlink symbol without SBFD symbol configured, "UL" represents that the symbol in the time slot is an uplink symbol, "FD" represents that the symbol in the time slot is an SBFD symbol, and the small rectangle filled with gray represents the opportunity occupied by the first PRACH; in case A, the first threshold represents the threshold of the interval length from the downlink symbol to the SBFD symbol, in case B, the first threshold represents the threshold of the interval length from the uplink symbol to the SBFD symbol, in case C, the first threshold represents the threshold of the interval length from the SBFD symbol to the uplink symbol, and in case D, the first threshold represents the threshold of the interval length from the SBFD symbol to the downlink symbol.

[0281] In Example 6, the opportunity occupied by the first PRACH in the present application is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capability.

[0282] As an embodiment, the conversion delay between SBFD symbols and non-SBFD symbols is considered when judging the validity of a PRACH opportunity, thereby improving the probability of successful transmission of PRACH while taking into account implementation limitations, thereby reducing the implementation complexity of transmitting PRACH on SBFD symbols.

[0283] As an embodiment, a valid PRACH opportunity is a PRACH opportunity that can be used for PRACH transmission.

[0284] As an embodiment, a valid PRACH opportunity is a PRACH opportunity associated with a synchronized broadcast signal.

[0285] As an embodiment, a valid PRACH opportunity is a PRACH opportunity mapped by a synchronous broadcast signal.

[0286] As an embodiment, a valid PRACH opportunity is a PRACH opportunity mapped to a synchronized broadcast signal.

[0287] As an embodiment, a valid PRACH opportunity is a PRACH opportunity that can be used for uplink synchronization.

[0288] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the start of the opportunity occupied by the first PRACH in the time domain and the start of the adjacent non-SBFD symbol.

[0289] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the start of the opportunity occupied by the first PRACH in the time domain and the end of the adjacent non-SBFD symbol.

[0290] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the end of the opportunity occupied by the first PRACH in the time domain and the start of the adjacent non-SBFD symbol.

[0291] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the end of the opportunity occupied by the first PRACH in the time domain and the end of the adjacent non-SBFD symbol.

[0292] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and an adjacent non-SBFD symbol is the interval length between the opportunity occupied by the first PRACH in the time domain and an adjacent non-SBFD symbol.

[0293] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and an adjacent non-SBFD symbol is the interval length between the opportunity occupied by the first PRACH in the time domain and any adjacent non-SBFD symbol.

[0294] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the PRACH time slot to which the opportunity occupied by the first PRACH belongs and the adjacent non-SBFD symbol in the time domain.

[0295] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols is the interval length between the overlapping time slots and the adjacent non-SBFD symbols in the time domain occupied by the first PRACH.

[0296] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the start of the opportunity occupied by the first PRACH in the time domain and the last non-SBFD symbol. As a subsidiary embodiment of the above embodiment, the interval length between the first and last non-SBFD symbols is considered to meet the transmission delay requirements of different coverage ranges while ensuring the conversion time between non-SBFD symbols and SBFD symbols.

[0297] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbol is the interval length between the end of the opportunity occupied by the first PRACH in the time domain and the next (next) non-SBFD symbol. As a subsidiary embodiment of the above embodiment, considering the interval length between and subsequent non-SBFD symbols ensures the conversion time between SBFD symbols and non-SBFD symbols, reducing the implementation complexity.

[0298] As an embodiment, the interval length between the opportunity occupied by the first PRACH and adjacent non-SBFD symbols in the time domain is expressed in absolute time length.

[0299] As an embodiment, the length of the interval between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols is expressed in the number of symbols.

[0300] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols is represented by the number of symbols corresponding to the subcarrier interval of the preamble.

[0301] As an embodiment, the interval length between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols is expressed as the number of symbols corresponding to the subcarrier spacing of the active uplink BWP.

[0302] As an embodiment, the adjacent non-SBFD symbol is a previous non-SBFD symbol.

[0303] As an embodiment, the adjacent non-SBFD symbol is the next non-SBFD symbol.

[0304] As an embodiment, the adjacent non-SBFD symbol is a previous non-SBFD symbol that is closest to the adjacent non-SBFD symbol.

[0305] As an embodiment, the adjacent non-SBFD symbol is a non-SBFD symbol that is closest thereto.

[0306] As an embodiment, the adjacent non-SBFD symbol is a previous or next downlink symbol.

[0307] As an embodiment, the adjacent non-SBFD symbol is a downlink symbol indicated by the previous or next tdd-UL-DL-ConfigCommon.

[0308] As an embodiment, the adjacent non-SBFD symbol is a previous or next downlink symbol that is not indicated as a SBFD symbol.

[0309] As an embodiment, the adjacent non-SBFD symbol is a previous or next downlink symbol indicated by tdd-UL-DL-ConfigCommon that is not indicated as a SBFD symbol.

[0310] As an embodiment, the adjacent non-SBFD symbol is a previous or next uplink symbol.

[0311] As an embodiment, the adjacent non-SBFD symbol is an uplink symbol indicated by a previous or next tdd-UL-DL-ConfigCommon.

[0312] As an embodiment, the first threshold is a non-negative integer.

[0313] As an embodiment, the first threshold may be a non-integer.

[0314] As an embodiment, the unit of the first threshold is seconds or milliseconds.

[0315] As an embodiment, the first threshold represents the number of symbols.

[0316] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than a first threshold" includes: the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than the first threshold is used to determine or judge that the opportunity occupied by the first PRACH is valid.

[0317] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than a first threshold" includes: the length of the interval between the opportunity occupied by the first PRACH in the time domain and the adjacent non-SBFD symbols being greater than the first threshold is a necessary condition for the opportunity occupied by the first PRACH to be valid.

[0318] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbols in the time domain being greater than a first threshold" includes: the condition that the opportunity occupied by the first PRACH is valid includes that the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbols in the time domain is not less than (or greater than) the first threshold.

[0319] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbol in the time domain being greater than a first threshold" includes: the validity of the opportunity occupied by the first PRACH depends on the fact that the start of the opportunity occupied by the first PRACH in the time domain is at least N1 symbols later than the adjacent non-SBFD symbol, and N1 is the first threshold.

[0320] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbol in the time domain being greater than a first threshold" includes: the validity of the opportunity occupied by the first PRACH depends on the cutoff of the opportunity occupied by the first PRACH in the time domain being at least N2 symbols earlier than the adjacent non-SBFD symbol, and N2 is the first threshold.

[0321] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbols in the time domain being greater than a first threshold" includes: when the opportunity occupied by the first PRACH belongs to an uplink sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the uplink sub-band in the frequency domain is not less than a configured or predefined threshold and the start of the opportunity occupied by the first PRACH in the time domain is N1 symbols later than the adjacent non-SBFD symbol, the opportunity occupied by the first PRACH is valid, and N1 is the first threshold.

[0322] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbol in the time domain being greater than a first threshold" includes: when the opportunity occupied by the first PRACH belongs to an uplink sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the uplink sub-band in the frequency domain is not less than a configured or predefined threshold and the end of the first PRACH opportunity in the time domain is N2 symbols earlier than the adjacent non-SBFD symbol, the opportunity occupied by the first PRACH is valid, and N2 is the first threshold.

[0323] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbol in the time domain being greater than a first threshold" includes: when the opportunity occupied by the first PRACH belongs to an uplink sub-band in the frequency domain and the start of the opportunity occupied by the first PRACH in the time domain is N1 symbols later than the adjacent non-SBFD symbol and the end of the opportunity occupied by the first PRACH in the time domain is N2 symbols earlier than the adjacent non-SBFD symbol, the opportunity occupied by the first PRACH is valid, N1 or N2 is the first threshold, N1 is a non-negative integer, and N2 is a non-negative integer.

[0324] As an embodiment, the technical feature "the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH and the adjacent non-SBFD symbols in the time domain being greater than a first threshold" includes: when the opportunity occupied by the first PRACH belongs to an uplink sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the uplink sub-band in the frequency domain is not less than a configured or predefined threshold and the start of the opportunity occupied by the first PRACH in the time domain is N1 symbols later than the adjacent non-SBFD symbol and the end of the first PRACH opportunity in the time domain is N2 symbols earlier than the adjacent non-SBFD symbol, the first PRACH opportunity is valid, N1 or N2 is the first threshold, N1 is a non-negative integer, and N2 is a non-negative integer.

[0325] As an embodiment, the first threshold is configured or predefined.

[0326] As an embodiment, the first threshold is related to the capability of the user equipment.

[0327] As an embodiment, the first threshold is configured and is related to the user equipment capability.

[0328] As an embodiment, the first threshold is configured including: higher layer signaling or higher layer parameters indicating the first threshold.

[0329] As an embodiment, the first threshold is configured including: the first threshold depends on higher layer signaling or higher layer parameters.

[0330] As an embodiment, the first threshold is configured to include: the first threshold depends on the subcarrier spacing, and higher layer signaling or higher layer parameters indicate the subcarrier spacing on which the first threshold depends.

[0331] As an embodiment, the first threshold is configured to include: higher layer signaling or higher layer parameters indicating whether the first threshold is equal to the value reported by the user equipment capability.

[0332] As an embodiment, the first threshold is configured to include: higher layer signaling or higher layer parameters indicating an offset value between the first threshold and a value reported by the user equipment capability.

[0333] As an embodiment, the first threshold is configured including: a parameter for calculating the first threshold includes a first parameter value, and a higher layer signaling or a higher layer parameter indicates the first parameter value.

[0334] As an embodiment, the first threshold is configured to include: the first threshold is linearly related to a first parameter value, and a higher layer signaling or a higher layer parameter indicates the first parameter value.

[0335] As an embodiment, the first threshold being predefined includes: the first threshold being fixed.

[0336] As an embodiment, the first threshold being predefined includes: the first threshold being hard coded in the standard.

[0337] As an embodiment, the first threshold being predefined includes: a relationship between the first threshold and a value of another parameter is fixed.

[0338] As an embodiment, the first threshold is predefined including: the corresponding relationship between the first threshold and the subcarrier spacing is fixed.

[0339] As an embodiment, the first threshold is predefined including: a parameter for calculating the first threshold includes a first parameter value, and the first parameter value is a fixed value.

[0340] As an embodiment, the first threshold value is related to the user equipment capability and includes: the first threshold value is equal to the value reported by the user equipment capability.

[0341] As an embodiment, the first threshold value is related to the user equipment capability and includes: the first threshold value is not less than the value reported by the user equipment capability.

[0342] As an embodiment, the first threshold is related to the user equipment capability and includes: parameters for calculating the first threshold include a first parameter value, and the first parameter value is equal to the value reported by the user equipment capability.

[0343] As an embodiment, the first threshold value is related to the user equipment capability, including: the first threshold value is linearly correlated with a first parameter value, and the first parameter value is equal to the value reported by the user equipment capability.

[0344] As an embodiment, the first threshold is related to the user equipment capability and depends on whether the user equipment capability supports SBFD or whether the user equipment capability supports transmission of PRACH in downlink SBFD symbols.

[0345] As an embodiment, the network configures the first threshold to take into account the conversion delay between different hardware or algorithm implementations when the network side processes SBFD symbols and non-SBFD symbols, thereby ensuring effective operation of self-interference cancellation of the network.

[0346] As an embodiment, the predefined first threshold may support setting a fixed relatively large threshold, thereby simplifying the design while ensuring that the conversion and processing delays on the network and user sides are met.

[0347] As an embodiment, associating the first threshold with the user equipment capability can ensure that the conversion and processing delay of the user equipment are met, thereby reducing the implementation complexity of the user equipment.

[0348] As an embodiment, the first threshold is associated with the user equipment capability and is configured by the network at the same time, so as to ensure that the conversion and processing delay of the user equipment are met, while taking into account different network side implementations, thereby optimizing the setting of the first threshold, avoiding accidental damage to valid PRACH opportunities, and improving the capacity of PRACH.

[0349] As an embodiment, the first threshold is equal to a larger value compared between a first candidate interval and a second candidate interval, the first candidate interval is configured or related to the subcarrier interval of the random access preamble, and the second candidate interval is related to the user equipment capability.

[0350] As an embodiment, the first threshold is equal to N gap The larger value compared with the first ability value, N gap It is related to the subcarrier spacing of the random access preamble, and the first capability value is related to the user equipment capability.

[0351] Example 7

[0352] Embodiment 7 illustrates a schematic diagram of a second threshold value according to an embodiment of the present application, as shown in the attached figure. Figure 7 As shown in the attached Figure 7 In FIG. 8 , the vertical axis represents frequency, the thick-line rectangle represents the target sub-band, the rectangle filled with slashes represents the opportunity occupied by the first PRACH, and the second threshold represents the threshold of the frequency interval from the boundary of the target sub-band to the target sub-band.

[0353] In embodiment 7, the second information block indicates a target sub-band, and the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and that the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

[0354] As an embodiment, the effect of self-interference on adjacent frequency bands is considered when judging the validity of a PRACH opportunity, thereby ensuring effective transmission of the PRACH and improving random access performance.

[0355] As an embodiment, the target sub-band is a SBFD sub-band (full duplex subband).

[0356] As an embodiment, the target sub-frequency band is a SBFD sub-frequency band used for uplink.

[0357] As an embodiment, the target sub-frequency band is an uplink SBFD sub-frequency band.

[0358] As an embodiment, the target sub-frequency band is a sub-frequency band that can be used for uplink transmission in a downlink symbol or a flexible symbol.

[0359] As an embodiment, the target sub-frequency band includes guard frequency domain resources (guard).

[0360] As an embodiment, the target sub-band does not include protection frequency domain resources.

[0361] As an embodiment, the target sub-band includes continuous frequency domain resources.

[0362] As an embodiment, an uplink BWP includes all or part of the frequency domain resources in the target sub-band. As a subsidiary embodiment of the above embodiment, the target sub-band belongs to the uplink BWP, which can reuse the existing design to the greatest extent and reduce the design complexity.

[0363] As an embodiment, an uplink active BWP includes all or part of the frequency domain resources in the target sub-band. As a subsidiary embodiment of the above embodiment, the uplink active BWP includes part of the resources in the target sub-band to support carrier-level sub-band configuration and increase flexibility.

[0364] As an embodiment, in a time domain symbol, there are overlapping frequency domain resources between the target sub-band and the active uplink BWP.

[0365] As an embodiment, in a time domain symbol, there are no overlapping frequency domain resources between the target sub-band and the active uplink BWP.

[0366] As an embodiment, the boundary of the RB (Resource Block) included in the target sub-band is aligned with the boundary of the RB in the uplink BWP. As a subsidiary embodiment of the above embodiment, uplink resource fragmentation is avoided and coverage is improved.

[0367] As an embodiment, the target sub-band is spaced per numerology or per sub-carrier.

[0368] As an embodiment, the target sub-band is per resource grid. As a subsidiary embodiment of the above embodiment, configuring the sub-band per grid improves configuration flexibility.

[0369] As an embodiment, the target sub-band is per BWP. As a subsidiary embodiment of the above embodiment, configuring the sub-band per BWP ensures compatibility and reduces standard complexity.

[0370] As an embodiment, the boundary of the RB included in the target sub-band is aligned with the boundary of the RB in the downlink BWP. As a subsidiary embodiment of the above embodiment, downlink resource fragmentation is avoided and scheduling flexibility is guaranteed.

[0371] As an embodiment, the second information block indicating the target sub-frequency band includes: all or part of the second information block explicitly or implicitly indicates the target sub-frequency band.

[0372] As an embodiment, the second information block indicating the target sub-band includes: the second information block indicating the starting RB (or the RB with the lowest index) of the target sub-band.

[0373] As an embodiment, the second information block indicating the target sub-band includes: the second information block indicates the number of RBs included in the target sub-band.

[0374] As an embodiment, the second information block indicating the target sub-frequency band includes: the second information block indicates the RIV (resource indicator value) corresponding to the target sub-frequency band.

[0375] As an embodiment, the second information block indicating the target sub-band includes: the second information block indicates the RIV corresponding to the target sub-band, and the starting RB of the target sub-band and the number of consecutive RBs included are used to generate the corresponding RIV.

[0376] As an embodiment, the second information block indicating the target sub-frequency band includes: the second information block indicates the SLIV (start and length indicator value, starting length indication value) corresponding to the target sub-frequency band.

[0377] As an embodiment, the second information block indicating the target sub-band includes: the second information block indicates the SLIV corresponding to the target sub-band, and the starting RB of the target sub-band and the number of consecutive RBs included are used to generate the corresponding SLIV.

[0378] As an embodiment, the second information block indicates that the target sub-band includes: the second information block indicates at least one CRB (common resource block) for one subcarrier spacing included in the target sub-band.

[0379] As an embodiment, the second information block indicates the target sub-band including: the second information block indicates the number of CRBs spaced between the lowest indexed CRB included in the target sub-band and frequency point A (pointA) and the number of continuous CRBs included in the target sub-band.

[0380] As an embodiment, the second information block indicates the target sub-band including: all or part of the second information block explicitly or implicitly indicates the number of CRBs for the reference sub-carrier spacing and the interval between the lowest index of the CRB for the reference sub-carrier spacing included in the target sub-band and the frequency point A (pointA), and the number of consecutive CRBs for the reference sub-carrier spacing included in the target sub-band. As an auxiliary embodiment of the above embodiment, the reference sub-carrier spacing is equal to the sub-carrier spacing in an uplink resource grid; the benefit of doing so includes avoiding resource fragmentation. As an auxiliary embodiment of the above embodiment, the reference sub-carrier spacing is equal to the sub-carrier spacing in a downlink resource grid, and the benefit of doing so is to improve scheduling flexibility. As an auxiliary embodiment of the above embodiment, the reference sub-carrier spacing is related to a frequency range (FR). As an auxiliary embodiment of the above embodiment, the reference sub-carrier spacing is predefined or configured. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is the maximum value among the subcarrier spacings respectively targeted by the multiple uplink resource grids configured; the advantage of this is that the alignment with the uplink resources is ensured. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is the maximum value among the subcarrier spacings respectively targeted by the multiple downlink resource grids configured; the advantage of this is that the alignment with the downlink resources is ensured. As an auxiliary embodiment of the above embodiment, the reference subcarrier spacing is the maximum value among the subcarrier spacings respectively targeted by all the configured resource grids; the advantage of this is that the alignment with both the uplink and downlink resources is ensured.

[0381] As an embodiment, the second information block indicates the target sub-band including: the second information block indicates M1 sub-bands from M1 resource grids respectively, M1 is a positive integer greater than 1, and the target sub-band is one of the M1 sub-bands. As an auxiliary embodiment of the above embodiment, the M1 resource grids are M1 uplink resource grids; the advantage of this is that the fragmentation of uplink resources is avoided while not increasing signaling overhead. As an auxiliary embodiment of the above embodiment, the M1 resource grids are M1 downlink resource grids; the advantage of this is that the fragmentation of downlink resources is avoided while not increasing signaling overhead. As an auxiliary embodiment of the above embodiment, the M1 resource grids include both uplink resource grids and downlink resource grids; the advantage of this is that uplink and downlink resource allocation is considered at the same time but some signaling overhead will be increased. As an auxiliary embodiment of the above embodiment, the M1 resource grids are configured.

[0382] As an embodiment, the SBFD symbol indicated by the second information block is a time domain symbol configured with the target sub-frequency band.

[0383] As an embodiment, the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain, including: all frequency domain resources occupied by the opportunity occupied by the first PRACH are located in the target sub-band.

[0384] As an embodiment, the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain, including: the target sub-band includes all frequency domain resources occupied by the opportunity occupied by the first PRACH.

[0385] As an embodiment, the frequency domain interval between the opportunity occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is the frequency domain interval between the lowest frequency (or the lowest indexed subcarrier) of the opportunity occupied by the first PRACH and at least one boundary of the target sub-band.

[0386] As an embodiment, the frequency domain interval between the opportunity occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is the frequency domain interval between the highest frequency (or the highest indexed subcarrier) of the opportunity occupied by the first PRACH and at least one boundary of the target sub-band.

[0387] As an embodiment, the frequency domain interval between the opportunity occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is the frequency domain interval between the lowest frequency (or the lowest indexed subcarrier) of the opportunity occupied by the first PRACH and the lowest frequency (or the included lowest indexed subcarrier) of the target sub-band.

[0388] As an embodiment, the frequency domain interval between the opportunity occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is the frequency domain interval between the highest frequency (or the highest indexed sub-carrier) of the opportunity occupied by the first PRACH and the highest frequency (or the highest indexed sub-carrier included) of the target sub-band.

[0389] As an embodiment, the frequency domain interval between the opportunity occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band includes the frequency domain interval between the lowest frequency (or the lowest indexed subcarrier) of the opportunity occupied by the first PRACH and the lowest frequency (or the included lowest indexed subcarrier) of the target sub-band and the frequency domain interval between the highest frequency (or the highest indexed subcarrier) of the opportunity occupied by the first PRACH and the highest frequency (or the included highest indexed subcarrier) of the target sub-band.

[0390] As an embodiment, the second threshold is a non-negative integer.

[0391] As an embodiment, the second threshold may be a non-integer.

[0392] As an embodiment, the unit of the second threshold is Hertz or kilohertz.

[0393] As an embodiment, the second threshold represents the number of subcarriers.

[0394] As an embodiment, the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is not less than a second threshold, which includes: the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is greater than the second threshold.

[0395] As an embodiment, the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is not less than a second threshold, which includes: the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is greater than or equal to the second threshold.

[0396] As an embodiment, the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is not less than a second threshold, including: the frequency domain interval between all frequency resources (or all sub-carriers) included in the frequency domain of the opportunities occupied by the first PRACH and the lowest frequency (or the lowest indexed sub-carrier included) of the target sub-band is not less than the second threshold.

[0397] As an embodiment, the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is not less than a second threshold, including: the frequency domain interval between all frequency resources (or all sub-carriers) included in the frequency domain and the highest frequency (or the highest indexed sub-carrier included) of the target sub-band by the opportunities occupied by the first PRACH is not less than the second threshold.

[0398] As an embodiment, the frequency domain interval between the opportunities occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is not less than a second threshold, including: the frequency domain interval between all frequency resources (or all subcarriers) included in the frequency domain and the lowest frequency of the target sub-band (or the lowest indexed subcarrier included) is not less than the second threshold; the frequency domain interval between all frequency resources (or all subcarriers) included in the frequency domain and the highest frequency of the target sub-band (or the highest indexed subcarrier included) is not less than the second threshold.

[0399] As an embodiment, the frequency domain interval between the opportunity occupied by the first PRACH in the frequency domain and at least one boundary of the target sub-band is not less than a second threshold, including: the frequency domain interval between the highest frequency (or the highest indexed subcarrier) of the opportunity occupied by the first PRACH and the highest frequency (or the included highest indexed subcarrier) of the target sub-band is not less than the second threshold; the frequency domain interval between the lowest frequency (or the lowest indexed subcarrier) of the opportunity occupied by the first PRACH and the lowest frequency (or the included lowest indexed subcarrier) of the target sub-band is not less than the second threshold.

[0400] As an embodiment, "the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold" includes: the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, which is a necessary condition for the validity of the opportunities occupied by the first PRACH.

[0401] As an embodiment, "the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold" includes: the conditions for the validity of the opportunities occupied by the first PRACH include that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold.

[0402] As an embodiment, "the validity of the opportunity occupied by the first PRACH depends on that the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold" includes: when the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than the second threshold, the opportunity occupied by the first PRACH is valid.

[0403] As an embodiment, "the validity of the opportunity occupied by the first PRACH depends on that the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold" includes: the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than the second threshold, which is used to determine that the opportunity occupied by the first PRACH is valid.

[0404] As an embodiment, the second threshold is configured including: higher layer signaling or higher layer parameters indicating the second threshold.

[0405] As an embodiment, the second threshold is configured including: the second threshold depends on higher layer signaling or higher layer parameters.

[0406] As an embodiment, the second threshold is configured to include: the second threshold depends on the subcarrier spacing, and higher layer signaling or higher layer parameters indicate the subcarrier spacing on which the second threshold depends.

[0407] As an embodiment, the second threshold is configured including: parameters for calculating the second threshold include a second parameter value, and higher layer signaling or a higher layer parameter indicates the second parameter value.

[0408] As an embodiment, the second threshold being predefined includes: the second threshold being fixed.

[0409] As an embodiment, the second threshold being predefined includes: the second threshold being hard coded in the standard.

[0410] As an embodiment, the second threshold being predefined includes: a relationship between the second threshold and a value of another parameter is fixed.

[0411] As an embodiment, the second threshold is predefined including: the corresponding relationship between the second threshold and the subcarrier spacing is fixed.

[0412] As an embodiment, the second threshold is predefined, including: a parameter for calculating the second threshold includes a second parameter value, and the second parameter value is a fixed value.

[0413] As an embodiment, the second threshold is related to the subcarrier spacing of the leading edge.

[0414] As an embodiment, the second threshold is related to the subcarrier spacing of the target sub-band.

[0415] As an embodiment, the second threshold is related to the subcarrier spacing of the BWP.

[0416] As an embodiment, the second threshold and the leading subcarrier spacing are related to the subcarrier spacing of the target sub-band.

[0417] Example 8

[0418] Embodiment 8 illustrates a schematic diagram of a third threshold value according to an embodiment of the present application, as shown in the attached figure. Figure 8 As shown in the attached Figure 8 In FIG. 8 , the horizontal axis represents time, the vertical axis represents frequency, the rectangle filled with cross lines represents the first PDCCH, and the rectangle filled with diagonal lines represents the first PRACH.

[0419] In Embodiment 8, the length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

[0420] As an embodiment, the third threshold is associated with the symbol type, the impact of the introduction of SBFD symbols on the processing delay requirement is taken into consideration, and the complexity of product implementation is reduced.

[0421] As an embodiment, the latest symbol received by the first PDCCH is no later than the earliest symbol transmitted by the first PRACH.

[0422] As an embodiment, the latest symbol received by the first PDCCH is earlier than the earliest symbol transmitted by the first PRACH.

[0423] As an embodiment, the time interval length between the first PDCCH and the first PRACH in the time domain is the time interval length between the latest received symbol of the first PDCCH and the earliest transmitted symbol of the first PRACH.

[0424] As an embodiment, the length of the time interval between the first PDCCH and the first PRACH in the time domain is the time domain delay between the first PDCCH and the first PRACH.

[0425] As an embodiment, the time interval length between the first PDCCH and the first PRACH in the time domain is the time interval length between the end time of the latest symbol received by the first PDCCH and the start time of the earliest symbol transmitted by the first PRACH.

[0426] As an embodiment, the time interval length between the first PDCCH and the first PRACH in the time domain is the time interval length between the start time of the latest symbol received by the first PDCCH and the start time of the earliest symbol transmitted by the first PRACH.

[0427] As an embodiment, the time interval length between the first PDCCH and the first PRACH in the time domain is the time interval length between the cutoff time of the latest symbol received by the first PDCCH and the cutoff time of the earliest symbol transmitted by the first PRACH.

[0428] As an embodiment, the unit of the time interval length between the first PDCCH and the first PRACH in the time domain is millisecond (ms).

[0429] As an embodiment, the length of the time interval between the first PDCCH and the first PRACH in the time domain is represented by the number of symbols.

[0430] As an embodiment, the length of the time interval between the first PDCCH and the first PRACH in the time domain is expressed in absolute time.

[0431] As an embodiment, the unit of the third threshold is milliseconds.

[0432] As an embodiment, the third threshold is expressed in absolute time.

[0433] As an embodiment, the third threshold is represented by the number of symbols.

[0434] As an embodiment, the length of the time interval between the first PDCCH and the first PRACH in the time domain is greater than or equal to the third threshold.

[0435] As an embodiment, the symbol type of the symbols included in the first PDCCH in the time domain is the symbol type of all symbols included in the first PDCCH in the time domain.

[0436] As an embodiment, the symbol type of the symbols included in the first PDCCH in the time domain is the symbol type of part of the symbols included in the first PDCCH in the time domain.

[0437] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: the third threshold depends on the symbol type of symbols included in the time domain by the first PDCCH and the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH.

[0438] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: the third threshold depends on the symbol type of symbols included in the time domain by the first PDCCH.

[0439] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: the third threshold depends on the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH.

[0440] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH is used to determine the third threshold.

[0441] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: the third threshold depends on whether the symbol type of symbols included in the time domain by the first PDCCH and the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH are the same.

[0442] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: at least one parameter included in the third threshold depends on whether the symbol type of symbols included in the time domain by the first PDCCH and the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH are the same.

[0443] As an embodiment, "the third threshold depends on at least one of the symbol type of symbols included in the time domain by the first PDCCH or the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH" includes: when the symbol type of symbols included in the time domain by the first PDCCH and the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH are the same, a parameter included in the third threshold is equal to one value; when the symbol type of symbols included in the time domain by the first PDCCH and the symbol type of symbols included in the time domain by the opportunity occupied by the first PRACH are not the same, the parameter included in the third threshold is equal to another value.

[0444] As an embodiment, "the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH" includes: when the symbol type of the symbols included in the time domain by the first PDCCH is one type, a parameter included in the third threshold is equal to one value; when the symbol type of the symbols included in the time domain by the first PDCCH is another type, the parameter included in the third threshold is equal to another value.

[0445] As an embodiment, "the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH" includes: when the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH is one type, a parameter included in the third threshold is equal to one value; when the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH is another type. The parameter included in the third threshold is equal to another value.

[0446] As an embodiment, “the third threshold depends on at least one of the symbol type of the symbol included in the time domain by the first PDCCH or the symbol type of the symbol included in the time domain by the opportunity occupied by the first PRACH” includes: the parameter N used in calculating the third threshold T,2 The value of depends on at least one of the symbol type of the symbols included in the first PDCCH in the time domain or the symbol type of the symbols included in the time domain occupied by the first PRACH.

[0447] As an embodiment, “the third threshold depends on at least one of the symbol type of the symbol included in the time domain by the first PDCCH or the symbol type of the symbol included in the time domain by the opportunity occupied by the first PRACH” includes: the parameter Δ used in calculating the third threshold BWPSwitching The value of depends on at least one of the symbol type of the symbols included in the first PDCCH in the time domain or the symbol type of the symbols included in the time domain occupied by the first PRACH.

[0448] As an embodiment, “the third threshold depends on at least one of the symbol type of the symbol included in the time domain by the first PDCCH or the symbol type of the symbol included in the time domain by the opportunity occupied by the first PRACH” includes: the parameter Δ used in calculating the third threshold Delay The value of depends on at least one of the symbol type of the symbols included in the first PDCCH in the time domain or the symbol type of the symbols included in the time domain occupied by the first PRACH.

[0449] As an embodiment, “the third threshold depends on at least one of the symbol type of the symbol included in the time domain by the first PDCCH or the symbol type of the symbol included in the time domain by the opportunity occupied by the first PRACH” includes: the parameter T used in calculating the third threshold switch The value of depends on at least one of the symbol type of the symbols included in the first PDCCH in the time domain or the symbol type of the symbols included in the time domain occupied by the first PRACH.

[0450] As an embodiment, “the third threshold depends on at least one of the symbol type of the symbol included in the time domain by the first PDCCH or the symbol type of the symbol included in the time domain by the opportunity occupied by the first PRACH” includes: the parameter Δ used in calculating the third threshold SBFDThe value of depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH, and the parameter Δ SBFD is the parameter N T，2 , parameter Δ BWPSwitching , parameter Δ Delay or parameter T switch The value of the parameter other than .

[0451] Example 9

[0452] Embodiment 9 illustrates a schematic diagram of a first opportunity set and a second opportunity set according to an embodiment of the present application, as shown in the attached figure. Fig. 9 As shown in the attached Fig. 9 , the horizontal axis represents time, each rectangle filled with slashes represents an opportunity in the first opportunity set, each rectangle filled with cross lines represents an opportunity in the second opportunity set, and the gray filled rectangle represents a simultaneous broadcast block.

[0453] In Example 9, the first PDCCH in the present application carries a second domain, the second domain carried by the first PDCCH indicates an index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH in the present application belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0454] As an embodiment, the technical feature "the first PDCCH carries the second domain" includes the following meaning: the format adopted by the DCI carried by the first PDCCH includes the second domain.

[0455] As an embodiment, the technical feature "the first PDCCH carries the second domain" includes the following meaning: the DCI including the second domain is transmitted on the first PDCCH.

[0456] As an embodiment, the technical feature "the first PDCCH carries the second domain" includes the following meaning: the DCI including the second domain is mapped to the first PDCCH.

[0457] As an embodiment, the technical feature "the first PDCCH carries the second domain" includes the following meaning: the DCI including the second domain is used to generate the first PDCCH.

[0458] As an embodiment, the technical feature "the first PDCCH carries the second domain" includes the following meaning: the information bits of the DCI carried by the first PDCCH include the bits occupied by the second domain.

[0459] As an embodiment, the first domain is a SS / PBCH (synchronization signal / physical broadcast channel) index domain.

[0460] As an embodiment, "the second field carried by the first PDCCH indicates the index of a synchronized broadcast block" includes: the second field carried by the first PDCCH explicitly or implicitly indicates the index of a synchronized broadcast block.

[0461] As an embodiment, the synchronization broadcast block is a synchronization signal.

[0462] As an embodiment, the synchronization broadcast block is a physical broadcast channel (PBCH, physicalbroadcastchannel).

[0463] As an embodiment, the synchronization broadcast block includes a synchronization signal and a physical broadcast channel.

[0464] As an embodiment, the synchronization broadcast block is a synchronization signal physical broadcast channel block (SS / PBCH block).

[0465] As an embodiment, the synchronization broadcast block is a synchronization signal block (SSB, synchronization signal block).

[0466] As an embodiment, the synchronization broadcast block is a synchronization signal of 6G or a physical broadcast channel of 6G.

[0467] As an embodiment, the index of a synchronized broadcast block is an index of a synchronized broadcast block in multiple synchronized broadcast blocks.

[0468] As an embodiment, the synchronization broadcast block indicates an index of the synchronization broadcast block.

[0469] As an embodiment, the index of the synchronization broadcast block is a non-negative integer.

[0470] As an embodiment, the first opportunity set includes at least one PRACH opportunity, and the second opportunity set includes at least one PRACH opportunity.

[0471] As an embodiment, the first opportunity set includes at least one RO, and the second opportunity set includes at least one RO.

[0472] As an embodiment, the first opportunity set includes ROs associated with the same synchronized broadcast block index, and the second opportunity set includes ROs associated with the same synchronized broadcast block index.

[0473] As an embodiment, the first opportunity set and the second opportunity set respectively include ROs of symbols belonging to different types in the time domain indicated by the same PRACH configuration index.

[0474] As an embodiment, the first opportunity set and the second opportunity set respectively include ROs with overlapping symbols of different types in the time domain indicated by the same PRACH configuration index.

[0475] As an embodiment, the first opportunity set and the second opportunity set respectively include ROs indicated by two different PRACH configuration indexes among the multiple PRACH configuration indexes.

[0476] As an embodiment, the first opportunity set and the second opportunity set respectively include ROs in which symbols of different types are overlapped and are respectively indicated by two different PRACH configuration indexes among the multiple PRACH configuration indexes.

[0477] As an embodiment, "the index of the synchronization broadcast block indicated by the second domain carried by the first PDCCH is associated with the first opportunity set and the second opportunity set" includes: the index of the synchronization broadcast block indicated by the second domain carried by the first PDCCH is associated with at least one opportunity in the first opportunity set, and the index of the synchronization broadcast block indicated by the second domain carried by the first PDCCH is associated with at least one opportunity in the second opportunity set.

[0478] As an embodiment, "the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with the first opportunity set and the second opportunity set" includes: the opportunities in the first opportunity set and the opportunities in the second opportunity set are both associated with or mapped to the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH.

[0479] As an embodiment, "the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set" includes: the spatial filters corresponding to the opportunities in the first opportunity set and the opportunities in the second opportunity set are the same as the spatial filters of the synchronized broadcast block with the index indicated by the second domain carried by the first PDCCH.

[0480] As an embodiment, "the index of the synchronized broadcast block indicated by the second field carried by the first PDCCH is associated with a first opportunity set and a second opportunity set" includes: the transmitting spatial filter adopted for the opportunities in the first opportunity set and the opportunities in the second opportunity set and the receiving spatial filter of the synchronized broadcast block with the index indicated by the second field carried by the first PDCCH have reciprocity or correspondence.

[0481] As an embodiment, the opportunity set corresponding to the symbol type indicated by the first field carried by the first PDCCH is an opportunity set configured for the symbol type indicated by the first field carried by the first PDCCH.

[0482] As an embodiment, the opportunity set corresponding to the symbol type indicated by the first field carried by the first PDCCH is the opportunity set to which the opportunity occupied by the PRACH sent on the symbol of the symbol type indicated by the first field carried by the first PDCCH belongs.

[0483] As an embodiment, the opportunity set corresponding to the symbol type indicated by the first field carried by the first PDCCH is an opportunity set that can only be used on symbols of the symbol type indicated by the first field carried by the first PDCCH.

[0484] As an embodiment, "the opportunities occupied by the first PRACH belong to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first field carried by the first PDCCH" includes: the opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first field carried by the first PDCCH includes the opportunities occupied by the first PRACH.

[0485] As an embodiment, "the opportunities occupied by the first PRACH belong to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first field carried by the first PDCCH" includes: the first opportunity set and the second opportunity set correspond to the first symbol type and the second symbol type respectively, and the symbol type indicated by the first field carried by the first PDCCH is one of the first symbol type or the second symbol type; when the symbol type indicated by the first field carried by the first PDCCH is the first symbol type, the opportunities occupied by the first PRACH belong to the first opportunity set; when the symbol type indicated by the first field carried by the first PDCCH is the second symbol type, the opportunities occupied by the first PRACH belong to the second opportunity set.

[0486] As an embodiment, "the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first domain carried by the first PDCCH" includes: the symbol type of at least one symbol included in the opportunity occupied by the first PRACH in the time domain is the symbol type indicated by the first domain carried by the first PDCCH.

[0487] As an embodiment, "the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first field carried by the first PDCCH" includes: the first node device selects the set occupied by the first PRACH in the RO of the symbol type indicated by the first field carried by the first PDCCH.

[0488] As an embodiment, "the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first field carried by the first PDCCH" includes: the first node device initiates random access in the RO of the symbol type indicated by the first field carried by the first PDCCH.

[0489] As an embodiment, the opportunity set corresponding to the PRACH configuration index indicated by the first field carried by the first PDCCH is the opportunity set configured by the PRACH configuration index indicated by the first field carried by the first PDCCH.

[0490] As an embodiment, the opportunity set corresponding to the PRACH configuration index indicated by the first field carried by the first PDCCH is the opportunity set to which the opportunities occupied by the PRACH sent on the symbol of the symbol type corresponding to the PRACH configuration index indicated by the first field carried by the first PDCCH belong.

[0491] As an embodiment, the opportunity set corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH is an opportunity set on symbols of the symbol type targeted by the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0492] As an embodiment, the opportunity set corresponding to the PRACH configuration index indicated by the first field carried by the first PDCCH is the opportunity set configured by the PRACH configuration index indicated by the first field carried by the first PDCCH from the corresponding PRACH configuration table.

[0493] As an embodiment, the opportunity set corresponding to the PRACH configuration index indicated by the first field carried by the first PDCCH is an opportunity set configured by a PRACH configuration index in the PRACH configuration table indicated by the first field carried by the first PDCCH.

[0494] As an embodiment, "the opportunities occupied by the first PRACH belong to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH includes the opportunities occupied by the first PRACH.

[0495] As an embodiment, "the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the first node device selects the opportunity occupied by the first PRACH from the opportunity set configured by the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0496] As an embodiment, "the opportunities occupied by the first PRACH belong to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the first opportunity set and the second opportunity set correspond to the first PRACH configuration index and the second PRACH configuration index respectively, and the PRACH configuration index indicated by the first domain carried by the first PDCCH is one of the first PRACH configuration index or the second PRACH configuration index; when the PRACH configuration index indicated by the first domain carried by the first PDCCH is the first PRACH configuration index, the opportunities occupied by the first PRACH belong to the first opportunity set; when the PRACH configuration index indicated by the first domain carried by the first PDCCH is the second PRACH configuration index, the opportunities occupied by the first PRACH belong to the second opportunity set.

[0497] As an embodiment, "the opportunity occupied by the first PRACH belongs to the opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH" includes: the first node device initiates random access in the RO in the opportunity set corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0498] Example 10

[0499] Embodiment 10 illustrates a schematic diagram of a first domain according to an embodiment of the present application, as shown in the attached Fig.10 As shown in the attached Fig.10 In the figure, the rectangular frame with thick lines represents the first PDCCH, and the rectangular frame filled with diagonal lines represents the first domain.

[0500] In embodiment 10, the third information block in the present application is used to indicate at least one capability parameter of the sender of the third information block, and the third information block is used to determine that the first PDCCH in the present application carries the first domain.

[0501] As an embodiment, the third information block is transmitted via an air interface or a wireless interface.

[0502] As an embodiment, the third information block includes all or part of high-layer signaling or physical layer signaling.

[0503] As an embodiment, the third information block is earlier than the first information block.

[0504] As an embodiment, the third information block is later than the first information block.

[0505] As an embodiment, the third information block includes all or part of the RRC signaling, or the third information block includes all or part of the MAC layer signaling.

[0506] As an embodiment, the third information block is transmitted via PUSCH or PUCCH (Physical Uplink Control Channel).

[0507] As an embodiment, the third information block is used to indicate the capability of the terminal in the present application.

[0508] As an embodiment, the technical feature "the third information block is used to indicate at least one capability parameter of the sender of the third information block" includes the following meaning: the third information block is used by the terminal in this application to indicate at least one capability parameter of the terminal.

[0509] As an embodiment, the technical feature "the third information block is used to indicate at least one capability parameter of the sender of the third information block" includes the following meaning: all or part of the third information block is used to explicitly or implicitly indicate at least one capability parameter of the sender of the third information block.

[0510] As an embodiment, the third information block includes IE "BandCombinationList", or the third information block includes IE "UE-NR-Capability", or the third information block includes IE "RF-Parameters", or the third information block includes IE "BandNR", or the third information block includes IE "Phy-Parameters", or the third information block includes IE "Phy-ParametersCommon", or the third information block includes IE "Phy-ParametersCommon-v19a0".

[0511] As an embodiment, the third information block includes the field "SBFD-CFRA".

[0512] As an embodiment, the third information block is used to indicate that at least one capability parameter of the sender of the third information block includes at least one parameter in the IE "Phy-ParametersFRX-Diff".

[0513] As an embodiment, the third information block is used to indicate that at least one capability parameter of the sender of the third information block includes at least one parameter in the field "Phy-ParametersCommon".

[0514] As an embodiment, the third information block is used to indicate that at least one capability parameter of the sender of the third information block includes at least one parameter in the field "BandNR".

[0515] As an embodiment, the third information block is used to indicate that at least one capability parameter of the sender of the third information block includes at least one parameter in the field "BandCombinationList".

[0516] As an embodiment, the third information block is used to indicate that at least one capability parameter of the sender of the third information block includes at least one parameter in the field "Phy-Parameters".

[0517] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meaning: the third information block is used by the receiver of the third information block to determine that the first PDCCH carries the first domain.

[0518] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meaning: all or part of the third information block is used to explicitly or implicitly indicate that the first PDCCH carries the first domain.

[0519] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meaning: all or part of the third information block is used to explicitly or implicitly indicate that the sender of the third information block has the ability to support the target characteristics, and the ability to support the target characteristics is used to determine that the first PDCCH carries the first domain.

[0520] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meaning: all or part of the third information block is used to explicitly or implicitly indicate that the sender of the third information block has the ability to support the first PDCCH carrying the first domain.

[0521] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: all or part of the third information block is used to explicitly or implicitly indicate that the sender of the third information block has the ability to support the target characteristics; when the sender of the third information block has the ability to support the target characteristics, signaling can configure the first PDCCH to carry the first domain.

[0522] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: all or part of the third information block is used to explicitly or implicitly indicate that the sender of the third information block has the ability to support the target characteristics; when the sender of the third information block has the ability to support the target characteristics, signaling can configure the first PDCCH to carry the first domain; otherwise, signaling does not configure the first PDCCH to carry the first domain.

[0523] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: when the third information block is not provided, the first PDCCH does not carry the first domain; when the third information block is provided, the first PDCCH carries the first domain.

[0524] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: when the third information block is not provided, the terminal does not expect (or assumes) that the first PDCCH carries the first domain; when the third information block is provided, the terminal expects (or assumes) that the first PDCCH carries the first domain.

[0525] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: when the third information block is not provided, the first PDCCH does not carry the first domain; when the third information block is provided, signaling configures the first PDCCH to carry the first domain.

[0526] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: when the third information block is not provided, the terminal does not expect (or does not assume) that the first PDCCH carries the first domain; when the third information block is provided and the signaling configures the first PDCCH to carry the first domain, the terminal expects (or assumes) that the first PDCCH carries the first domain; when the third information block is provided and the signaling configures the first PDCCH not to carry the first domain, the terminal does not expect (or does not assume) that the first PDCCH carries the first domain.

[0527] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: the third information block indicates that the sender of the third information block has the ability to support SBFD; the sender of the third information block has the ability to support SBFD and is used to determine that the first PDCCH carries the first domain.

[0528] As an embodiment, the technical feature "the third information block is used to determine that the first PDCCH carries the first domain" includes the following meanings: the third information block indicates that the sender of the third information block has the ability to support SBFD random access; the sender of the third information block has the ability to support SBFD random access and is used to determine that the first PDCCH carries the first domain.

[0529] Embodiment 11

[0530] Embodiment 11 illustrates a schematic diagram of a power boost step length according to an embodiment of the present application, as shown in the attached figure. Fig.11 As shown in the attached Fig.11 In FIG. 1 , the horizontal axis represents time, the vertical axis represents power, each rectangle represents a transmission of a random access channel, the rectangle filled with diagonal lines represents the first PRACH, and the power boost step size is used to determine the power boost amplitude between two transmissions.

[0531] In embodiment 11, the first information block in the present application is used to determine the power boost step, the first PDCCH in the present application is used to determine the first count value, and the power boost step and the first count value are used together to determine the transmission power value of the first PRACH in the present application.

[0532] As an embodiment, by indicating the first count value for different symbol types through the first PDCCH, the UE can accurately set the transmit power value of the first PRACH to ensure the detection performance of the first PRACH.

[0533] As an embodiment, the unit of the power boost step is dB.

[0534] As an embodiment, the unit of the power increase step is milliwatt (mW).

[0535] As an embodiment, the unit of the power boost step is dBm.

[0536] As an embodiment, the power boost step size is a non-negative integer.

[0537] As an embodiment, the power boost step size is not less than 0.

[0538] As an embodiment, the power boost step size is equal to one of 0dB, 2dB, 4dB or 6dB.

[0539] As an embodiment, the power boost step size is a power-ramping factor.

[0540] As an embodiment, the power boost step size is a power adjustment (or change) value when the PRACH (or preamble) is retransmitted.

[0541] As an embodiment, the power ramping step is equal to a power ramping step of a symbol type indicated by the first field carried by the first PDCCH.

[0542] As an embodiment, the power boost step size is equal to the power boost step size of the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0543] As an embodiment, the technical feature "the first information block is used to determine the power boost step size" includes the following meaning: the first information block is used by the first node device in the present application to determine the power boost step size.

[0544] As an embodiment, the technical feature "the first information block is used to determine the power boost step size" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate the power boost step size.

[0545] As an embodiment, the technical feature "the first information block is used to determine the power boost step size" includes the following meaning: the first information block and at least one parameter other than the parameters included in the first information block are used together to determine the power boost step size.

[0546] As an embodiment, the technical feature "the first information block is used to determine the power boost step size" includes the following meaning: all or part of the first information block is used to explicitly or implicitly indicate a candidate power boost step size, and the power boost step size is equal to the product of the candidate power boost step size and an expansion factor, and the expansion factor is predefined or configured.

[0547] As an embodiment, the first count value is a non-negative integer.

[0548] As an embodiment, the first count value is a positive integer.

[0549] As an embodiment, the first count value does not exceed the maximum number of retransmissions for a PRACH (or preamble) of a cell.

[0550] As an embodiment, the maximum value of the first count value does not exceed 3.

[0551] As an embodiment, the maximum value of the first count value does not exceed 7.

[0552] As an embodiment, the maximum value of the first count value does not exceed 15.

[0553] As an embodiment, possible values ​​of the first count value are 0 or 1.

[0554] As an embodiment, possible values ​​of the first count value are initial transmission or retransmission.

[0555] As an embodiment, the first count value is the value of a preamble power boost counter (PREAMBLE POWERRAMPING COUNTER).

[0556] As an embodiment, the first count value is the value of a variable adopted by the first node device for a random access process.

[0557] As an embodiment, the first count value is used for the retransmission count of PRACH (or preamble).

[0558] As an embodiment, the first count value is used to determine the retransmission sequence number of PRACH (or preamble).

[0559] As an embodiment, the first count value is used for retransmission counting of a PRACH (or preamble) of a symbol type.

[0560] As an embodiment, the technical feature "the first PDCCH is used to determine the first count value" includes the following meaning: the first PDCCH is used by the first node device in the present application to determine the first count value.

[0561] As an embodiment, the technical feature "the first PDCCH is used to determine a first count value" includes the following meaning: all or part of the DCI carried by the first PDCCH is used to explicitly or implicitly indicate the first count value.

[0562] As an embodiment, the technical feature "the first PDCCH is used to determine a first count value" includes the following meaning: at least one field in the DCI carried by the first PDCCH is used to explicitly or implicitly indicate the first count value.

[0563] As an embodiment, the technical feature "the first PDCCH is used to determine a first count value" includes the following meanings: the first count value is equal to the value of the target counter, and at least one field in the DCI carried by the first PDCCH is used to determine whether the target counter is increased by 1.

[0564] As an embodiment, the technical feature "the first PDCCH is used to determine a first count value" includes the following meanings: the first count value is equal to the value of the target counter, and at least one field in the DCI carried by the first PDCCH indicates initial transmission or retransmission; when at least one field in the DCI carried by the first PDCCH indicates retransmission, whether the target counter is increased by 1.

[0565] As an embodiment, the technical feature "the power boost step size and the first count value are used together to determine the transmit power value of the first PRACH" includes the following meaning: the power boost step size and the first count value are used together by the first node device in this application to determine the transmit power value of the first PRACH.

[0566] As an embodiment, the technical feature "the power boost step size and the first count value are used together to determine the transmit power value of the first PRACH" includes the following meaning: the power boost step size and the first count value are used together to calculate the transmit power value of the first PRACH.

[0567] As an embodiment, the technical feature "the power boost step size and the first count value are used together to determine the transmit power value of the first PRACH" includes the following meaning: the product between the power boost step size and the first count value is used to calculate the transmit power value of the first PRACH.

[0568] As an embodiment, the technical feature "the power boost step size and the first count value are used together to determine the transmit power value of the first PRACH" includes the following meaning: the product of the power boost step size and the difference between the first count value minus 1 is used to calculate the transmit power value of the first PRACH.

[0569] As an embodiment, the technical feature "the power boost step and the first count value are used together to determine the transmit power value of the first PRACH" includes the following meaning: the transmit power value of the first PRACH is equal to the smaller value between the first upper limit value and the first power value, the first upper limit value is the maximum output power configured for the first node device, and the first power value and the product value of the power boost step and the difference between the first count value minus 1 are linearly related.

[0570] As an embodiment, the technical feature "the power boost step and the first count value are used together to determine the transmit power value of the first PRACH" includes the following meaning: the transmit power value of the first PRACH is equal to the smaller value between the first upper limit value and the first power value, the first upper limit value is the maximum output power configured for the first node device, and the first power value and the product value between the power boost step and the first count value are linearly related.

[0571] As an embodiment, the unit of the transmission power value of the first PRACH is dBm.

[0572] As an embodiment, the unit of the transmission power value of the first PRACH is mW.

[0573] As an embodiment, the transmission power value of the first PRACH is not greater than the maximum output power value configured for the first node device in the cell associated with the first PRACH.

[0574] As an embodiment, the technical feature of "the power increase step size and the first count value are used together to determine the transmit power value of the first PRACH" is achieved by satisfying the following formula:

[0575] P PRACH，b，f，c (i) = min{P CMAX，f，c (i), P PRACH，target，f，c +PL b，f，c}[dBm]

[0576] Among them, P PRACH，b，f，c (i) represents the transmit power value of the first PRACH, P CMAX，f，c (i) represents the maximum output power value configured for the first node device, PL b，f，c represents the path loss in the uplink BWP b on the carrier f of the cell c associated with the first PRACH, P PRACH，target，f，c It is equal to the sum of the configured preamble reception target power and the product value of the power increase step size and the difference between the first count value and 1.

[0577] As an embodiment, the technical feature of "the power increase step size and the first count value are used together to determine the transmit power value of the first PRACH" is achieved by satisfying the following formula:

[0578] P PRACH，b，f，c (i) = min{P CMAX，f，c (i), P PRACH，target，f，c +PL b，f，c}[dBm]

[0579] Among them, PPRACH，b，f，c (i) represents the transmit power value of the first PRACH, P CMAX，f，c (i) represents the maximum output power value configured for the first node device, PL b，f，c represents the path loss in the uplink BWP b on the carrier f of the cell c associated with the first PRACH, P PRACH，target，f，c It is equal to the sum of the configured preamble reception target power and the product value of the power increase step size and the first count value.

[0580] As an embodiment, the technical feature of "the power increase step size and the first count value are used together to determine the transmit power value of the first PRACH" is achieved by satisfying the following formula:

[0581] P PRACH，b，f，c (i) = min{P CMAX，f，c (i), P PRACH，target，f，c +PL b，f，c}[dBm]

[0582] Among them, P PRACH，b，f，c (i) represents the transmit power value of the first PRACH, P CMAX，f，c (i) represents the maximum output power value configured for the first node device, PL b，f，c represents the path loss in the uplink BWP b on the carrier f of the cell c associated with the first PRACH, P PRACH，target，f，c It is equal to the sum of the configured preamble reception target power, the product value of the power increase step and the difference between the first count value minus 1, and a configured power offset value.

[0583] Example 12

[0584] Embodiment 12 illustrates a structural block diagram of a processing device in a terminal device of an embodiment, as shown in the attached figure. Fig.12 As shown in the attached Fig.12 In the embodiment, the terminal device processing apparatus includes a first receiver 1201 and a first transmitter 1202. The first receiver 1201 includes the first Figure 4 The transmitter / receiver 456 (including the antenna 460), the receiving processor 452 and the controller / processor 490 in the present application; the first transmitter 1202 includes Figure 4 The transmitter / receiver 456 (including the antenna 460), the transmit processor 455 and the controller / processor 490.

[0585] In embodiment 12, a first receiver 1201 receives a first information block, wherein the first information block indicates at least one PRACH configuration index; the first receiver 1201 receives a first PDCCH, wherein the first PDCCH carries a first domain; a first transmitter 1202 sends a first PRACH, wherein the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence; when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes at least one symbol in the time domain, and the symbol type is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0586] As an embodiment, the opportunity occupied by the first PRACH is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capability.

[0587] As an embodiment, the first receiver 1201 receives a second information block; wherein the second information block indicates a target sub-band, and the validity of the opportunity occupied by the first PRACH depends on that the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

[0588] As an embodiment, the length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

[0589] As an embodiment, the first PDCCH carries a second domain, the second domain carried by the first PDCCH indicates an index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0590] As an embodiment, the first transmitter 1202 sends a third information block; wherein the third information block is used to indicate at least one capability parameter of the sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

[0591] As an embodiment, the first information block is used to determine a power boost step size, the first PDCCH is used to determine a first count value, and the power boost step size and the first count value are used together to determine a transmit power value of the first PRACH.

[0592] Example 13

[0593] Embodiment 13 illustrates a structural block diagram of a processing device in a base station device of an embodiment, as shown in the attached figure. Fig.13 As shown in the attached Fig.13 In the present application, the base station equipment processing device 1300 includes a second transmitter 1301 and a second receiver 1302. The second transmitter 1301 includes Figure 4 The transmitter / receiver 416 (including the antenna 460), the transmission processor 415 and the controller / processor 440 in the second receiver 1302 include the attached Figure 4 The transmitter / receiver 416 (including the antenna 460), the receive processor 412 and the controller / processor 440 in the embodiment.

[0594] In embodiment 13, the second transmitter 1301 sends a first information block, the first information block indicates at least one PRACH configuration index; the second transmitter 1301 sends a first PDCCH, the first PDCCH carries a first domain; the second receiver 1302 receives a first PRACH, the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence; when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes at least one symbol in the time domain, and the symbol type is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

[0595] As an embodiment, the opportunity occupied by the first PRACH is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capability.

[0596] As an embodiment, the second transmitter 1301 sends a second information block; wherein the second information block indicates a target sub-band, the validity of the opportunity occupied by the first PRACH depends on that the opportunity occupied by the first PRACH belongs to the target sub-band in the frequency domain and the frequency domain interval between the opportunity occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

[0597] As an embodiment, the length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

[0598] As an embodiment, the first PDCCH carries a second domain, the second domain carried by the first PDCCH indicates an index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

[0599] As an embodiment, the second receiver 1302 receives a third information block; the third information block is used to indicate at least one capability parameter of the sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

[0600] As an embodiment, the first information block is used to determine a power boost step size, the first PDCCH is used to determine a first count value, and the power boost step size and the first count value are used together to determine a transmit power value of the first PRACH.

[0601] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The terminal device or base station device or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft, test devices, test equipment, test instruments and other equipment. The base station device or base station or network side device in the present 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, air base stations, test devices, test equipment, test instruments and other equipment.

[0602] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A method used in a terminal, characterized in that: include: receiving a first information block, the first information block indicating at least one PRACH configuration index; Receiving a first PDCCH, where the first PDCCH carries a first domain; Sending a first PRACH, where the first PDCCH triggers the sending of the first PRACH, and the first PRACH carries a random access preamble sequence; Among them, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes a symbol type of at least one symbol in the time domain, which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

2. The method according to claim 1, characterized in that The opportunity occupied by the first PRACH is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capability.

3. The method according to claim 1 or 2, characterized in that: include: receiving a second information block; The second information block indicates a target sub-band, and the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and that the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

4. The method according to any one of claims 1 to 3, characterized in that: The length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

5. The method according to any one of claims 1 to 4, characterized in that: The first PDCCH carries a second domain, the second domain carried by the first PDCCH indicates an index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

6. The method according to any one of claims 1 to 5, characterized in that: include: sending a third information block; The third information block is used to indicate at least one capability parameter of a sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

7. The method according to any one of claims 1 to 6, characterized in that: The first information block is used to determine a power increase step size, the first PDCCH is used to determine a first count value, and the power increase step size and the first count value are used together to determine a transmit power value of the first PRACH.

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, wherein the first information block indicates at least one PRACH configuration index; Sending a first PDCCH, where the first PDCCH carries a first domain; receiving a first PRACH, where the first PDCCH triggers sending of the first PRACH, and the first PRACH carries a random access preamble sequence; Among them, when the first information block indicates only one PRACH configuration index, the first domain carried by the first PDCCH indicates a symbol type, and the opportunity occupied by the first PRACH includes a symbol type of at least one symbol in the time domain, which is the symbol type indicated by the first domain carried by the first PDCCH; when the first information block indicates multiple PRACH configuration indexes, the first domain carried by the first PDCCH indicates a PRACH configuration index from the multiple PRACH configuration indexes, and the opportunity occupied by the first PRACH is the opportunity indicated by the PRACH configuration index indicated by the first domain carried by the first PDCCH; the symbol type of a symbol depends on the full-duplex configuration.

10. The method according to claim 9, characterized in that The opportunity occupied by the first PRACH is a valid PRACH opportunity, and the validity of the opportunity occupied by the first PRACH depends on the length of the interval between the opportunity occupied by the first PRACH in the time domain and adjacent non-SBFD symbols being greater than a first threshold, and the first threshold is configured or predefined and / or related to the user equipment capability.

11. The method according to claim 9 or 10, characterized in that include: sending a second information block; The second information block indicates a target sub-band, and the validity of the opportunities occupied by the first PRACH depends on that the opportunities occupied by the first PRACH belong to the target sub-band in the frequency domain and that the frequency domain interval between the opportunities occupied by the first PRACH and at least one boundary of the target sub-band in the frequency domain is not less than a second threshold, and the second threshold is predefined or configured.

12. The method according to any one of claims 9 to 11, characterized in that The length of the time interval between the first PDCCH and the first PRACH in the time domain is not less than a third threshold, and the third threshold depends on at least one of the symbol type of the symbols included in the time domain by the first PDCCH or the symbol type of the symbols included in the time domain by the opportunity occupied by the first PRACH.

13. The method according to any one of claims 9 to 12, characterized in that The first PDCCH carries a second domain, the second domain carried by the first PDCCH indicates an index of a synchronized broadcast block, the index of the synchronized broadcast block indicated by the second domain carried by the first PDCCH is associated with a first opportunity set and a second opportunity set, the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the symbol type indicated by the first domain carried by the first PDCCH, or the opportunity occupied by the first PRACH belongs to an opportunity set between the first opportunity set and the second opportunity set and corresponding to the PRACH configuration index indicated by the first domain carried by the first PDCCH.

14. The method according to any one of claims 9 to 13, characterized in that include: receiving a third information block; The third information block is used to indicate at least one capability parameter of a sender of the third information block, and the third information block is used to determine that the first PDCCH carries the first domain.

15. The method according to any one of claims 9 to 14, characterized in that The first information block is used to determine a power increase step size, the first PDCCH is used to determine a first count value, and the power increase step size and the first count value are used together to determine a transmit power value of the first PRACH.

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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