Information processing method, apparatus and storage medium

Abstract

The present disclosure relates to the technical field of communications. Provided are an information processing method, an apparatus and a storage medium. The method comprises: acquiring first information; on the basis of the first information, determining a symbol type where a PRACH transmission is performed; and selecting on the symbol type a physical random access channel (PRACH) occasion associated with a target reference signal for PRACH transmission.

Description

An information processing method, apparatus, and storage medium

[0001] This disclosure claims priority to Chinese Patent Application No. 202410699445.7, filed on May 31, 2024, entitled "An Information Processing Method, Apparatus, and Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to an information processing method, apparatus, and storage medium. Background Technology

[0003] Current Subband Full Duplex (SBFD) systems have two symbol types: SBFD symbols and non-SBFD symbols. Only SBFD-aware terminals can transmit the Physical Random Access Channel (PRACH) on SBFD symbols. In this case, the probability of contention-based random access collisions is lower, making successful access easier. However, adjacent channel interference on SBFD symbols is higher, which may affect the performance of random access. Conversely, non-SBFD symbols have lower interference, but more terminals compete for access, resulting in a higher probability of collisions.

[0004] Improving the random access success rate of the SBFD system is a technical problem that needs to be solved. Summary of the Invention

[0005] This disclosure provides an information processing method, apparatus, and storage medium to improve the probability of successful random access.

[0006] In a first aspect, embodiments of this disclosure provide an information processing method applied to a terminal, comprising:

[0007] Obtain first information;

[0008] Determine the symbol type of the PRACH transmission based on the first information;

[0009] Select a Physical Random Access Channel occasion (PRACH occasion) associated with the target reference signal on the symbol type to transmit PRACH;

[0010] The first information includes one or more of the following:

[0011] Measurement results of the reference signal;

[0012] The maximum number of attempts corresponding to the target symbol type;

[0013] The symbol types include at least: a first symbol type and a second symbol type.

[0014] In some embodiments, the first information includes measurement results of a reference signal; determining the symbol type of the Physical Random Access Channel (PRACH) transmission based on the first information includes:

[0015] Obtain a set of first reference signal measurement results for all reference signals in the reference signal set on a first symbol type, and obtain a set of second reference signal measurement results for all reference signals in the reference signal set on a second symbol type;

[0016] The target reference signal is determined based on the first set of reference signal measurement results and the second set of reference signal measurement results;

[0017] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0018] In some embodiments, determining the target reference signal based on the first set of reference signal measurement results and the second set of reference signal measurement results includes:

[0019] Each measurement result in the first set of reference signal measurement results is compared with a first threshold, and each measurement result in the second set of reference signal measurement results is compared with the first threshold;

[0020] If at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0021] If all measurement results in the first reference signal measurement result set are less than or equal to the first threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the first threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0022] In some embodiments, determining the target reference signal based on the first set of reference signal measurement results and the second set of reference signal measurement results includes:

[0023] Each measurement result in the first set of reference signal measurement results is compared with a second threshold, and each measurement result in the second set of reference signal measurement results is compared with a third threshold;

[0024] If at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0025] If all measurement results in the first reference signal measurement result set are less than or equal to the second threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the third threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0026] In some embodiments, the first information includes measurement results of a reference signal; determining the symbol type of the Physical Random Access Channel (PRACH) transmission based on the first information includes:

[0027] Determine the symbol type corresponding to each reference signal in the reference signal set;

[0028] For a reference signal belonging to a first symbol type, obtain a third set of reference signal measurement results for the reference signal belonging to the first symbol type on the first symbol type; and for a reference signal belonging to a second symbol type, obtain a fourth set of reference signal measurement results for the reference signal belonging to the second symbol type on the second symbol type.

[0029] The target reference signal is determined based on the third reference signal measurement result set and the fourth reference signal measurement result set;

[0030] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0031] In some embodiments, determining the symbol type corresponding to each reference signal in the reference signal set includes:

[0032] Receive a first indication sent by a network device, wherein the first indication is used to indicate the correspondence between reference signals and symbol types;

[0033] The symbol type corresponding to each reference signal is determined according to the first instruction.

[0034] In some embodiments, determining the symbol type corresponding to each reference signal in the reference signal set includes one or more of the following:

[0035] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located;

[0036] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0037] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal is transmitted.

[0038] If all the reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0039] If some reference signals are transmitted on one symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located; if some reference signals are transmitted on a first symbol type and a second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device.

[0040] The first indication is used to indicate the correspondence between the reference signal and the symbol type.

[0041] In some embodiments, determining the target reference signal based on the third set of reference signal measurement results and the fourth set of reference signal measurement results includes:

[0042] Each measurement result in the third reference signal measurement result set is compared with the fourth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the fourth threshold;

[0043] If at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0044] If all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0045] In some embodiments, determining the target reference signal based on the third set of reference signal measurement results and the fourth set of reference signal measurement results includes:

[0046] Each measurement result in the third reference signal measurement result set is compared with the fifth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the sixth threshold;

[0047] If at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0048] If all measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0049] In some embodiments, the method further includes:

[0050] Cyclicly map reference signals belonging to the first symbol type to physical random access channel opportunities of the first symbol type;

[0051] Reference signals belonging to the second symbol type are cyclically mapped to physical random access channel opportunities of the second symbol type.

[0052] In some embodiments, the first information includes the maximum number of attempts corresponding to the target symbol type; determining the symbol type of the Physical Random Access Channel (PRACH) transmission based on the first information includes:

[0053] Compare the current number of attempts for the Random Access Channel (RACH) with the maximum number of attempts corresponding to the target symbol type;

[0054] If the current RACH attempt count is less than the maximum attempt count corresponding to the target symbol type, obtain the fifth reference signal measurement result set of the first target object on the target symbol type; if the current RACH attempt count is greater than or equal to the maximum attempt count corresponding to the target symbol type, obtain the sixth reference signal measurement result set of the second target object on other symbol types, wherein the first target object and the second target object include a reference signal set, or, the first target object includes reference signals in the reference signal set whose symbol type is the target symbol type, and the second target object includes reference signals in the reference signal set whose symbol type is the other symbol type, and the target symbol type is the symbol type in which the PRACH transmission occurred in the previous RACH attempt;

[0055] The target reference signal is determined based on the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0056] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0057] In some embodiments, if the target symbol type is a first symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the first symbol type, and the other symbol types are second symbol types;

[0058] If the target symbol type is the second symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the second symbol type, and the other symbol types are the first symbol types.

[0059] In some embodiments, determining the target reference signal based on the fifth reference signal measurement result set or the sixth reference signal measurement result set includes:

[0060] Each measurement result in the target reference signal measurement result set is compared with the seventh threshold corresponding to the target reference signal measurement result set, wherein the target reference signal measurement result set includes the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0061] If at least one measurement result in the target reference signal measurement result set is greater than the seventh threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0062] If all measurement results in the target reference signal measurement result set are less than or equal to the seventh threshold, one measurement result is randomly selected from the target reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0063] In some embodiments, the seventh threshold corresponding to the fifth reference signal measurement result set may be the same as or different from the seventh threshold corresponding to the sixth reference signal measurement result set.

[0064] In some embodiments, the symbol type includes: SBFD symbols and non-SBFD symbols;

[0065] The reference signal includes one or more of the following: Synchronization Signal and PBCH block (SSB) and Channel State Information Reference Signal (CSI-RS).

[0066] In some embodiments, the measurement result of the reference signal includes one or more of the following:

[0067] Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal-to-Noise Ratio (SNR), and Signal-to-Noise and Interference Ratio (SINR).

[0068] Secondly, embodiments of this disclosure provide an information processing method applied to a network device, comprising:

[0069] Send a second message to the terminal, wherein the second message includes one or more of the following:

[0070] First indication, one or more thresholds, the maximum number of attempts corresponding to the symbol type;

[0071] Wherein, the first indication is used to indicate the correspondence between reference signals and symbol types, and to determine the symbol type of the target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is the symbol type in which the PRACH transmission of the terminal is located, and the symbol type includes at least: a first symbol type and a second symbol type.

[0072] In some embodiments, the maximum number of attempts corresponding to the symbol type includes:

[0073] The maximum number of attempts for the first symbol type and the maximum number of attempts for the second symbol type; or

[0074] The maximum number of attempts corresponding to the first symbol type or the maximum number of attempts corresponding to the second symbol type; or

[0075] The maximum number of attempts corresponding to the first symbol type and the second symbol type.

[0076] In some embodiments, the method further includes:

[0077] Receive the PRACH sent by the terminal;

[0078] The type of the terminal is determined based on the symbol type to which the PRACH is located.

[0079] In some embodiments, the type of terminal includes:

[0080] SBFD terminal or non-SBFD terminal.

[0081] Thirdly, embodiments of this disclosure provide an information processing apparatus, which is applied to a terminal and includes: a memory, a transceiver, and a processor.

[0082] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0083] Obtain first information;

[0084] Determine the symbol type of the PRACH transmission based on the first information;

[0085] On the symbol type, select the Physical Random Access Channel (PRACH) opportunity associated with the target reference signal for transmission.

[0086] The first information includes one or more of the following:

[0087] Measurement results of the reference signal;

[0088] The maximum number of attempts corresponding to the target symbol type;

[0089] The symbol types include at least: a first symbol type and a second symbol type.

[0090] In some embodiments, the first information includes measurement results of a reference signal; the processor is further configured to read a computer program from the memory and perform the following operations:

[0091] Obtain a set of first reference signal measurement results for all reference signals in the reference signal set on a first symbol type, and obtain a set of second reference signal measurement results for all reference signals in the reference signal set on a second symbol type;

[0092] The target reference signal is determined based on the first set of reference signal measurement results and the second set of reference signal measurement results;

[0093] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0094] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0095] Each measurement result in the first set of reference signal measurement results is compared with a first threshold, and each measurement result in the second set of reference signal measurement results is compared with the first threshold;

[0096] If at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0097] If all measurement results in the first reference signal measurement result set are less than or equal to the first threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the first threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0098] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0099] Each measurement result in the first set of reference signal measurement results is compared with a second threshold, and each measurement result in the second set of reference signal measurement results is compared with a third threshold;

[0100] If at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0101] If all measurement results in the first reference signal measurement result set are less than or equal to the second threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the third threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0102] In some embodiments, the first information includes measurement results of a reference signal; the processor is further configured to read a computer program from the memory and perform the following operations:

[0103] Determine the symbol type corresponding to each reference signal in the reference signal set;

[0104] For a reference signal belonging to a first symbol type, obtain a third set of reference signal measurement results for the reference signal belonging to the first symbol type on the first symbol type; and for a reference signal belonging to a second symbol type, obtain a fourth set of reference signal measurement results for the reference signal belonging to the second symbol type on the second symbol type.

[0105] The target reference signal is determined based on the third reference signal measurement result set and the fourth reference signal measurement result set;

[0106] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0107] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0108] Receive a first indication sent by a network device, wherein the first indication is used to indicate the correspondence between reference signals and symbol types;

[0109] The symbol type corresponding to each reference signal is determined according to the first instruction.

[0110] In some embodiments, the processor is further configured to read a computer program from the memory and perform one or more of the following operations:

[0111] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located;

[0112] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0113] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal is transmitted.

[0114] If all the reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0115] If some reference signals are transmitted on one symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located; if some reference signals are transmitted on a first symbol type and a second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device.

[0116] The first indication is used to indicate the correspondence between the reference signal and the symbol type.

[0117] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0118] Each measurement result in the third reference signal measurement result set is compared with the fourth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the fourth threshold;

[0119] If at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0120] If all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0121] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0122] Each measurement result in the third reference signal measurement result set is compared with the fifth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the sixth threshold;

[0123] If at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0124] If all measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0125] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0126] Cyclicly map reference signals belonging to the first symbol type to physical random access channel opportunities of the first symbol type;

[0127] Reference signals belonging to the second symbol type are cyclically mapped to physical random access channel opportunities of the second symbol type.

[0128] In some embodiments, the first information includes the maximum number of attempts corresponding to the target symbol type; the processor is further configured to read the computer program in the memory and perform the following operations:

[0129] Compare the current number of RACH attempts with the maximum number of attempts corresponding to the target symbol type;

[0130] If the current RACH attempt count is less than the maximum attempt count corresponding to the target symbol type, obtain the fifth reference signal measurement result set of the first target object on the target symbol type; if the current RACH attempt count is greater than or equal to the maximum attempt count corresponding to the target symbol type, obtain the sixth reference signal measurement result set of the second target object on other symbol types, wherein the first target object and the second target object include a reference signal set, or, the first target object includes reference signals in the reference signal set whose symbol type is the target symbol type, and the second target object includes reference signals in the reference signal set whose symbol type is the other symbol type, and the target symbol type is the symbol type in which the PRACH transmission occurred in the previous RACH attempt;

[0131] The target reference signal is determined based on the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0132] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0133] In some embodiments, if the target symbol type is a first symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the first symbol type, and the other symbol types are second symbol types;

[0134] If the target symbol type is the second symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the second symbol type, and the other symbol types are the first symbol types.

[0135] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0136] Each measurement result in the target reference signal measurement result set is compared with the seventh threshold corresponding to the target reference signal measurement result set, wherein the target reference signal measurement result set includes the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0137] If at least one measurement result in the target reference signal measurement result set is greater than the seventh threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0138] If all measurement results in the target reference signal measurement result set are less than or equal to the seventh threshold, one measurement result is randomly selected from the target reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0139] In some embodiments, the seventh threshold corresponding to the fifth reference signal measurement result set may be the same as or different from the seventh threshold corresponding to the sixth reference signal measurement result set.

[0140] In some embodiments, the symbol type includes: SBFD symbols and non-SBFD symbols;

[0141] The reference signal includes one or more of SSB and CSI-RS.

[0142] In some embodiments, the measurement result of the reference signal includes one or more of the following:

[0143] RSRP, RSRQ, SNR, SINR.

[0144] Fourthly, embodiments of this disclosure provide an information processing apparatus applied to a network device, comprising: a memory, a transceiver, and a processor.

[0145] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0146] Send the second message to the terminal;

[0147] The second information includes one or more of the following:

[0148] First indication, one or more thresholds, the maximum number of attempts corresponding to the symbol type;

[0149] Wherein, the first indication is used to indicate the correspondence between reference signals and symbol types, and to determine the symbol type of the target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is the symbol type in which the PRACH transmission of the terminal is located, and the symbol type includes at least: a first symbol type and a second symbol type.

[0150] In some embodiments, the maximum number of attempts corresponding to the symbol type includes:

[0151] The maximum number of attempts for the first symbol type and the maximum number of attempts for the second symbol type; or

[0152] The maximum number of attempts corresponding to the first symbol type or the maximum number of attempts corresponding to the second symbol type; or

[0153] The maximum number of attempts corresponding to the first symbol type and the second symbol type.

[0154] In some embodiments, the processor is further configured to read a computer program from the memory and perform the following operations:

[0155] Receive the PRACH sent by the terminal;

[0156] The type of the terminal is determined based on the symbol type to which the PRACH is located.

[0157] In some embodiments, the type of terminal includes:

[0158] SBFD terminal or non-SBFD terminal.

[0159] Fifthly, embodiments of this disclosure provide an information processing apparatus applied to a terminal, comprising:

[0160] The first acquisition unit is used to acquire first information;

[0161] The first determining unit is configured to determine the symbol type of the PRACH transmission based on the first information.

[0162] The first processing unit is configured to select, on the symbol type, the Physical Random Access Channel (PRACH) opportunity transmission associated with the target reference signal;

[0163] The first information includes one or more of the following:

[0164] Measurement results of the reference signal;

[0165] The maximum number of attempts corresponding to the target symbol type;

[0166] The symbol types include at least: a first symbol type and a second symbol type.

[0167] Sixthly, embodiments of this disclosure provide an information processing apparatus applied to a network device, comprising:

[0168] The first sending unit is used to send the second information to the terminal;

[0169] The second information includes a first indication and / or one or more thresholds;

[0170] The first indication is used to indicate the correspondence between reference signals and symbol types, and to determine the symbol type of the target reference signal. The threshold is used to select the target reference signal. The symbol type corresponding to the target reference signal is the symbol type in which the PRACH transmission of the terminal is located.

[0171] In a seventh aspect, embodiments of this disclosure also provide a processor-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the information processing method described above.

[0172] Eighthly, embodiments of this disclosure also provide a computer program product, including computer instructions that, when executed by a processor, implement the steps in the information processing method described above.

[0173] In this embodiment of the disclosure, the terminal can determine the symbol type of the PRACH transmission based on the first information, and select the physical random access channel associated with the target reference signal on the symbol type to transmit the PRACH, thereby ensuring that the terminal can select the physical random access channel on the symbol type with better transmission performance to transmit the PRACH, thereby improving the probability of successful random access. Attached Figure Description

[0174] Figure 1 is a flowchart of one of the information processing methods provided in the embodiments of this disclosure;

[0175] Figure 2 is a second flowchart of the information processing method provided in the embodiments of this disclosure;

[0176] Figure 3 is a schematic diagram of the reference signal set mapping according to an embodiment of the present disclosure;

[0177] Figure 4 is a schematic diagram of reference signal grouping mapping according to an embodiment of the present disclosure;

[0178] Figure 5 is a structural diagram of one of the information processing devices provided in the embodiments of this disclosure;

[0179] Figure 6 is a second structural diagram of the information processing device provided in an embodiment of this disclosure;

[0180] Figure 7 is a third structural diagram of the information processing device provided in the embodiments of this disclosure;

[0181] Figure 8 is a fourth structural diagram of the information processing apparatus provided in the embodiments of this disclosure. Detailed Implementation

[0182] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0183] In this disclosure, the term "multiple" refers to two or more, and other quantifiers are similar.

[0184] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0185] This disclosure provides an information processing method and apparatus to improve the probability of successful random access.

[0186] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0187] Referring to Figure 1, which is a flowchart of an information processing method provided in an embodiment of this disclosure and applied to a terminal, as shown in Figure 1, the method includes the following steps:

[0188] Step 101: Obtain the first information.

[0189] The first information includes one or more of the following:

[0190] The measurement results of the reference signal; the maximum number of attempts corresponding to the target symbol type.

[0191] In this embodiment of the disclosure, the reference signal includes one or more of SSB and CSI-RS, and the measurement result of the reference signal may include one or more of the following: RSRP, RSRQ, SNR, SINR. The symbol type includes at least a first symbol type and a second symbol type, where the target symbol type is any one of the symbol types. For example, the symbol type includes SBFD symbols and non-SBFD symbols, and the target symbol type is either an SBFD symbol or a non-SBFD symbol. The maximum number of attempts corresponding to the target symbol type can be configured by the network device.

[0192] Step 102: Determine the symbol type of the PRACH transmission based on the first information.

[0193] Depending on the content of the first information, the symbol type of the PRACH transmission can be determined in different ways. The terminal's random access attempt process can also be divided into an initial random access attempt and subsequent random access attempts.

[0194] In the first scenario, the first information includes the measurement results of the reference signal. In this case, the target reference signal can be determined in different ways.

[0195] Method 1: This step may include the following procedures:

[0196] S1021. Obtain a set of first reference signal measurement results for all reference signals in the reference signal set on the first symbol type, and obtain a set of second reference signal measurement results for all reference signals in the reference signal set on the second symbol type.

[0197] The reference signal set may include multiple reference signals, each corresponding to two measurement results: a first reference signal measurement result on a first symbol type and a second reference signal measurement result on a second symbol type. The two measurement results of all reference signals are then grouped into sets, resulting in the first reference signal measurement result set and the second reference signal measurement result set.

[0198] S1022. Determine the target reference signal based on the first set of reference signal measurement results and the second set of reference signal measurement results.

[0199] The network device can configure one threshold or two thresholds for the terminal. These thresholds are used to determine the target reference signal.

[0200] 1. The network device is configured with a threshold, namely the first threshold:

[0201] In this step, each measurement result in the first set of reference signal measurement results is compared with a first threshold, and each measurement result in the second set of reference signal measurement results is compared with the first threshold.

[0202] Then, based on the comparison results, a target reference signal is selected.

[0203] Specifically, if at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0204] That is, if at least one measurement result in the first reference signal measurement result set is greater than the first threshold, and all measurement results in the second reference signal detection result set are less than or equal to the first threshold, the terminal selects one measurement result from the at least one measurement result in the first reference signal measurement result set that is greater than the first threshold as the target measurement result; if at least one measurement result in the second reference signal measurement result set is greater than the first threshold, and all measurement results in the first reference signal detection result set are less than or equal to the first threshold, the terminal selects one measurement result from the at least one measurement result in the second reference signal measurement result set that is greater than the first threshold as the target measurement result; if at least one measurement result in the first reference signal measurement result set is greater than the first threshold and if at least one measurement result in the second reference signal measurement result set is greater than the first threshold, the terminal can select one measurement result from the at least one measurement result in the first reference signal measurement result set that is greater than the first threshold and the at least one measurement result in the second reference signal measurement result set that is greater than the first threshold as the target measurement result.

[0205] If all measurement results in the first reference signal measurement result set are less than or equal to the first threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the first threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0206] Here, the reference signal corresponding to the target measurement result is taken as the target reference signal. This can be understood as follows: if the measurement result of a certain reference signal is the target measurement result, then that reference signal is the target reference signal.

[0207] 2. The network device is configured with two thresholds: a second threshold and a third threshold. The second threshold is used for the first reference signal measurement result set, and the third threshold is used for the second reference signal measurement result set.

[0208] In this step, each measurement result in the first set of reference signal measurement results is compared with a second threshold, and each measurement result in the second set of reference signal measurement results is compared with a third threshold.

[0209] Then, based on the comparison results, a target reference signal is selected.

[0210] Specifically, if at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0211] That is, if at least one measurement result in the first reference signal measurement result set is greater than the second threshold, and all measurement results in the second reference signal detection result set are less than or equal to the third threshold, one measurement result is selected from at least one measurement result in the first reference signal measurement result set that is greater than the second threshold as the target measurement result; if at least one measurement result in the second reference signal measurement result set is greater than the third threshold, and all measurement results in the first reference signal detection result set are less than or equal to the second threshold, one measurement result is selected from at least one measurement result in the second reference signal measurement result set that is greater than the third threshold as the target measurement result; if at least one measurement result in the first reference signal measurement result set is greater than the second threshold and if at least one measurement result in the second reference signal measurement result set is greater than the third threshold, one measurement result can be selected from at least one measurement result in the first reference signal measurement result set that is greater than the second threshold and at least one measurement result in the second reference signal measurement result set that is greater than the third threshold as the target measurement result.

[0212] If all measurement results in the first reference signal measurement result set are less than or equal to the second threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the third threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0213] Here, the reference signal corresponding to the target measurement result is taken as the target reference signal. This can be understood as follows: if the measurement result of a certain reference signal is the target measurement result, then that reference signal is the target reference signal.

[0214] S1023. The symbol type corresponding to the target reference signal is used as the symbol type of the PRACH transmission.

[0215] If the symbol type corresponding to the target reference signal is a first symbol type, then the symbol type of the PRACH transmission is also a first symbol type. If the symbol type corresponding to the target reference signal is a second symbol type, then the symbol type of the PRACH transmission is also a second symbol type.

[0216] Method 2: This step may include the following procedures:

[0217] S1024. Determine the symbol type corresponding to each reference signal in the reference signal set.

[0218] There are at least two ways to determine the symbol type corresponding to each reference signal.

[0219] Method 1: Determine the symbol type corresponding to each reference signal according to the instruction from the network device. Specifically, the terminal receives a first instruction sent by the network device, wherein the first instruction is used to indicate the correspondence between reference signals and symbol types. Then, the terminal determines the symbol type corresponding to each reference signal according to the first instruction.

[0220] Method 2: The terminal determines the symbol type corresponding to each reference signal according to one or more of the following methods:

[0221] (1) If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located. That is, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located.

[0222] For example, suppose the reference signal set includes four SSBs, where SSB1-SSB4 are transmitted only on SBFD symbols. The terminal determines the symbol type corresponding to each SSB based on the symbol type where each SSB transmission opportunity is located; that is, the symbol type corresponding to SSB1-SSB4 is SBFD symbols.

[0223] (2) If each reference signal is transmitted on only one symbol type and all reference signals are transmitted on the same symbol type, the symbol type corresponding to each reference signal is determined according to the first indication sent by the network device; wherein, the first indication is used to indicate the correspondence between the reference signal and the symbol type.

[0224] Taking the example in (1) above as an example, the terminal needs to determine the symbol type corresponding to each of the four SSBs according to the first instruction of the network device.

[0225] (3) If each reference signal is transmitted only on one symbol type, and all reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located.

[0226] For example, suppose the reference signal set includes four SSBs, where SSB1 and SSB4 are transmitted only on SBFD symbols, and SSB2 and SSB3 are transmitted only on non-SBFD symbols. In this case, all candidate SSBs are naturally divided into two groups. The terminal determines the symbol type corresponding to each SSB based on the symbol type where each SSB's transmission opportunity occurs. That is, reference signals SSB1 and SSB4 correspond to SBFD symbol types, and reference signals SSB2 and SSB3 correspond to non-SBFD symbol types.

[0227] (4) If each of the reference signals is transmitted on the first symbol type and the second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device.

[0228] Taking the example in (3) above as an example, the terminal needs to determine the symbol type corresponding to each of the four SSBs according to the first instruction of the network device.

[0229] (5) If some reference signals are transmitted on a symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located; if some reference signals are transmitted on a first symbol type and a second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device.

[0230] For example, suppose the reference signal set includes four SSBs. Either SSB1 or SSB2 can be transmitted on two symbol types. SSB1 and SSB2 need to determine the corresponding symbol type through the first indication sent by the network device. SSB3 and SSB4 are transmitted only on SBFD symbols. SSB3 and SSB4 determine the symbol type corresponding to each SSB according to the symbol type where each SSB transmission opportunity is located. That is, SSB3 and SSB4 correspond to the SBFD symbol type.

[0231] In the above manner, it can be considered that the reference signals in the reference signal set are grouped according to their corresponding symbol types, thereby forming different reference signal groups.

[0232] S1025. For a reference signal belonging to the first symbol type, obtain a third set of reference signal measurement results for the reference signal belonging to the first symbol type on the first symbol type; and for a reference signal belonging to the second symbol type, obtain a fourth set of reference signal measurement results for the reference signal belonging to the second symbol type on the second symbol type.

[0233] S1026. Determine the target reference signal based on the third reference signal measurement result set and the fourth reference signal measurement result set.

[0234] The network device can configure one threshold or two thresholds for the terminal. These thresholds are used to determine the target reference signal.

[0235] 1. The network device is configured with a threshold, namely the fourth threshold:

[0236] In this step, each measurement result in the third reference signal measurement result set is compared with the fourth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the fourth threshold.

[0237] Then, based on the comparison results, a target reference signal is selected.

[0238] Specifically, if at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0239] That is, if at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold, and all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, the terminal randomly selects one measurement result from the at least one measurement result in the third reference signal measurement result set that is greater than the fourth threshold as the target measurement result; if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, and all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, the terminal randomly selects one measurement result from the at least one measurement result in the fourth reference signal measurement result set that is greater than the fourth threshold as the target measurement result; if at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold, and if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, the terminal can randomly select one measurement result from the at least one measurement result in the third reference signal measurement result set that is greater than the fourth threshold and the at least one measurement result in the fourth reference signal measurement result set that is greater than the fourth threshold as the target measurement result.

[0240] If all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0241] Here, the reference signal corresponding to the target measurement result is taken as the target reference signal. This can be understood as follows: if the measurement result of a certain reference signal is the target measurement result, then that reference signal is the target reference signal.

[0242] 2. The network device is configured with two thresholds: the fifth threshold and the sixth threshold. The fifth threshold is used for the third reference signal measurement result set, and the sixth threshold is used for the fourth reference signal measurement result set.

[0243] In this step, each measurement result in the third set of reference signal measurement results is compared with the fifth threshold, and each measurement result in the fourth set of reference signal measurement results is compared with the sixth threshold.

[0244] Then, based on the comparison results, a target reference signal is selected.

[0245] Specifically, if at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0246] That is, if at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold, and at least one measurement result in the fourth reference signal measurement result set is less than or equal to the sixth threshold, the terminal can randomly select one measurement result from the at least one measurement result in the third reference signal measurement result set that is greater than the fifth threshold as the target measurement result; if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, and at least one measurement result in the third reference signal measurement result set is less than or equal to the fifth threshold, the terminal can randomly select one measurement result from the at least one measurement result in the fourth reference signal measurement result set that is greater than the sixth threshold as the target measurement result; if at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, the terminal can randomly select one measurement result from the at least one measurement result in the third reference signal measurement result set that is greater than the fifth threshold and the at least one measurement result in the fourth reference signal measurement result set that is greater than the sixth threshold as the target measurement result.

[0247] If all measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0248] Here, the reference signal corresponding to the target measurement result is taken as the target reference signal. This can be understood as follows: if the measurement result of a certain reference signal is the target measurement result, then that reference signal is the target reference signal.

[0249] S1027. The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission is located.

[0250] If the symbol type corresponding to the target reference signal is a first symbol type, then the symbol type of the PRACH transmission is also a first symbol type. If the symbol type corresponding to the target reference signal is a second symbol type, then the symbol type of the PRACH transmission is also a second symbol type.

[0251] In some embodiments, based on the embodiments of the above-described Method 2, the terminal may also cyclically map reference signals belonging to the first symbol type to physical random access channel opportunities on the first symbol type; and cyclically map reference signals belonging to the second symbol type to physical random access channel opportunities on the second symbol type.

[0252] The description of the first scenario above can be applied to determining the symbol type of the PRACH transmission during the initial random access attempt and subsequent random access attempts.

[0253] In the second scenario, the first information includes the maximum number of attempts corresponding to the target symbol type. In this case, the terminal can determine the target reference signal as follows.

[0254] S1028. Compare the current number of RACH attempts with the maximum number of attempts corresponding to the target symbol type, wherein the target symbol type is the symbol type in which the PRACH transmission occurred in the previous RACH attempt.

[0255] Here, "current RACH attempt" refers to the RACH attempt by the current terminal to transmit PRACH, and "current RACH attempt count" refers to the number of RACH attempts that have failed in a single random access process.

[0256] In this embodiment of the disclosure, after a RACH attempt fails, the terminal can further determine whether the maximum number of attempts allowed for a single random access procedure has been reached. Therefore, after the determination in S1028 is completed, it can also be determined whether the maximum number of attempts allowed for a single random access procedure has been reached. If it has been reached, the random access procedure is determined to have failed. If it has not been reached, subsequent procedures can be executed.

[0257] S1029. If the current RACH attempt count is less than the maximum attempt count corresponding to the target symbol type, obtain the fifth reference signal measurement result set of the first target object on the target symbol type; if the current RACH attempt count is greater than or equal to the maximum attempt count corresponding to the target symbol type, obtain the sixth reference signal measurement result set of the second target object on other symbol types, wherein the first target object and the second target object include a reference signal set, or the first target object includes reference signals in the reference signal set whose symbol type is the target symbol type, and the second target object includes reference signals in the reference signal set whose symbol type is the other symbol type.

[0258] In other words, there are two possibilities in this step:

[0259] (1) If the current number of RACH attempts is less than the maximum number of attempts corresponding to the target symbol type, obtain the fifth reference signal measurement result set of each reference signal in the reference signal set on the target symbol type; if the current number of RACH attempts is greater than or equal to the maximum number of attempts corresponding to the target symbol type, obtain the sixth reference signal measurement result set of each reference signal in the reference signal set on other symbol types. That is, the measurement results of each reference signal on the target symbol type are obtained respectively to form the fifth reference signal measurement result set, or the measurement results of each reference signal on other symbol types are obtained respectively to form the sixth reference signal measurement result set.

[0260] Wherein, if the target symbol type is a first symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the first symbol type, and the other symbol types are second symbol types; if the target symbol type is a second symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the second symbol type, and the other symbol types are first symbol types.

[0261] (2) If the current number of RACH attempts is less than the maximum number of attempts corresponding to the target symbol type, obtain the fifth reference signal measurement result set of the reference signal with the symbol type of the target symbol type in the reference signal set on the target symbol type; if the current number of RACH attempts is greater than or equal to the maximum number of attempts corresponding to the target symbol type, obtain the sixth reference signal measurement result set of the reference signal with the symbol type of the target symbol type in the reference signal set on other symbol types.

[0262] S1030. Determine the target reference signal based on the fifth reference signal measurement result set or the sixth reference signal measurement result set.

[0263] In this step, each measurement result in the target reference signal measurement result set is compared with the seventh threshold corresponding to the target reference signal measurement result set, wherein the target reference signal measurement result set includes the fifth reference signal measurement result set or the sixth reference signal measurement result set.

[0264] Then, based on the comparison results, the target reference signal is determined.

[0265] Specifically, if at least one measurement result in the target reference signal measurement result set is greater than the seventh threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0266] If all measurement results in the target reference signal measurement result set are less than or equal to the seventh threshold, one measurement result is randomly selected from the target reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0267] For example, in (1) of S1029, the target reference signal measurement result set includes the fifth reference signal measurement result set; in (2) of S1029, the target reference signal measurement result set includes the sixth reference signal measurement result set.

[0268] S1031. The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission is performed.

[0269] If the symbol type corresponding to the target reference signal is a first symbol type, then the symbol type of the PRACH transmission is also a first symbol type. If the symbol type corresponding to the target reference signal is a second symbol type, then the symbol type of the PRACH transmission is also a second symbol type.

[0270] The seventh threshold corresponding to the fifth reference signal measurement result set may be the same as or different from the seventh threshold corresponding to the sixth reference signal measurement result set.

[0271] The description of the second scenario above can be applied to determining the symbol type of the PRACH transmission in subsequent random access attempts.

[0272] Step 103: Select the Physical Random Access Channel (PRACH) associated with the target reference signal for transmission on the symbol type.

[0273] In this embodiment of the disclosure, the terminal can determine the symbol type of the PRACH transmission based on the first information, and select the physical random access channel associated with the target reference signal on the symbol type to transmit the PRACH, thereby ensuring that the terminal can select the physical random access channel on the symbol type with better transmission performance to transmit the PRACH, thereby improving the probability of successful random access.

[0274] Referring to Figure 2, which is a flowchart of an information processing method provided in an embodiment of this disclosure, applied to a network device (such as a base station), the method includes the following steps:

[0275] Step 201: Send the second information to the terminal;

[0276] The second information includes one or more of the following:

[0277] First indication, one or more thresholds, the maximum number of attempts corresponding to the symbol type;

[0278] Wherein, the first indication is used to indicate the correspondence between reference signals and symbol types, and to determine the symbol type of the target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is the symbol type in which the PRACH transmission of the terminal is located, and the symbol type includes at least: a first symbol type and a second symbol type.

[0279] The plurality of thresholds includes the aforementioned first to seventh thresholds.

[0280] In this embodiment of the disclosure, the maximum number of attempts corresponding to the symbol type includes:

[0281] The maximum number of attempts for the first symbol type and the maximum number of attempts for the second symbol type; or

[0282] The maximum number of attempts corresponding to the first symbol type or the maximum number of attempts corresponding to the second symbol type; or

[0283] The maximum number of attempts corresponding to the first symbol type and the second symbol type.

[0284] For example, taking a first symbol type of SBFD symbol and a second symbol type of non-SBFD symbol as an example, the maximum number of attempts corresponding to the symbol type may include the maximum number of attempts corresponding to SBFD symbol and the maximum number of attempts corresponding to non-SBFD symbol.

[0285] For example, the maximum number of attempts corresponding to the symbol type may include the maximum number of attempts for both the SBFD symbol and the non-SBFD symbol. That is, in this case, the two symbol types correspond to the same maximum number of attempts.

[0286] For example, the maximum number of attempts corresponding to the symbol type may include the maximum number of attempts corresponding to SBFD symbols or the maximum number of attempts corresponding to non-SBFD symbols.

[0287] For example, the maximum number of attempts corresponding to the symbol type may include the maximum number of attempts corresponding to SBFD symbols. In this case, when the target symbol type is not SBFD, the terminal does not need to compare the current RACH attempt count with the maximum number of attempts corresponding to non-SBFD symbols. At this time, the terminal is not allowed to switch to SBFD symbols for random access.

[0288] In this embodiment of the disclosure, the terminal can determine the symbol type of the PRACH transmission based on the first information, and select the physical random access channel associated with the target reference signal on the symbol type to transmit the PRACH, thereby ensuring that the terminal can select the physical random access channel on the symbol type with better transmission performance to transmit the PRACH, thereby improving the probability of successful random access.

[0289] In some embodiments, the network device may also receive a PRACH sent by the terminal and determine the type of the terminal based on the symbol type of the PRACH. The type of the terminal includes: an SBFD terminal or a non-SBFD terminal.

[0290] The specific implementation process of the embodiments of this disclosure is described in detail below with reference to different examples. In the following embodiments, the symbol types include SBFD symbols and non-SBFD symbols as examples.

[0291] In one embodiment of this disclosure, taking the initial random access attempt as an example, RSRP is used as the measurement result for illustration. Here, one reference signal corresponds to two RSRP measurement results.

[0292] In New Radio (NR) systems, the transmission resources of CSI-RS reference signals are configured by network devices. The SBFD project supports configuring independent CSI-RS resources for SBFD symbols and non-SBFD symbols. This ensures that the terminal can obtain the RSRP measurement results of a CSI-RS reference signal on both SBFD and non-SBFD symbols. On the other hand, the time-domain resources for SSB reference signal transmission are configured and periodically transmitted by the network devices. The time-domain resources of the SBFD subband are periodically configured by the network devices based on Time Domain Duplex (TDD), therefore, the time-domain resources of the SBFD subband are also periodic. In this embodiment, the network device configuration ensures that there are SSB reference signal transmission opportunities on all SBFD and non-SBFD symbols. Therefore, the terminal can measure the RSRP of each reference signal on both SBFD and non-SBFD symbols separately. That is, assuming the terminal needs to select a target reference signal from N (N≥1) reference signals (reference signal set), the terminal can obtain 2N RSRP measurement results, of which N are measured on SBFD symbols and the other N are measured on non-SBFD symbols.

[0293] After acquiring the measurement results, the terminal selects the target reference signal and its corresponding symbol type based on the RSRP threshold. The RSRP threshold is configured by the network device, and this embodiment involves two configuration scenarios:

[0294] Scenario 1: The network device is configured with an RSRP threshold. This involves comparing the RSRP measurements of 2N reference signals across two symbol types with an RSRP threshold. If at least one of the 2N measurements exceeds the threshold, then any RSRP measurement exceeding the threshold is randomly selected, and its corresponding reference signal is used as the target reference signal, with its symbol type determined. If no RSRP measurement exceeds the threshold, then any RSRP measurement is randomly selected from all RSRP measurements, and its corresponding reference signal is used as the target reference signal, with its symbol type determined.

[0295] Specifically, assume that the terminal obtains four RSRP measurement results, namely RSRP#1 for SSB1 on SBFD symbols, RSRP#2 for SSB1 on non-SBFD symbols, RSRP#3 for SSB2 on SBFD symbols, and RSRP#4 for SSB2 on non-SBFD symbols.

[0296] The terminal compares the four RSRP measurement results with the RSRP_threshold configured on the network device. It finds that RSRP#2, RSRP#3, and RSRP#4 are higher than RSRP_threshold. The terminal arbitrarily selects RSRP#2 from the three measurement results, that is, the terminal determines that the target reference signal is SSB1 and the symbol type is a non-SBFD symbol. The terminal selects the PRACH Occasion associated with the reference signal SSB1 on the non-SBFD symbol to transmit PRACH.

[0297] Alternatively, the terminal compares the four RSRP measurement results with the RSRP_threshold configured on the network device. If it finds that no RSRP measurement result is higher than the RSRP_threshold, the terminal arbitrarily selects RSRP#4 from the four RSRP measurement results. That is, the terminal determines that the target reference signal is SSB2 and the symbol type is SBFD. The terminal then selects the PRACH Occasion associated with the reference signal SSB2 on the SBFD symbol to transmit PRACH.

[0298] Scenario 2: The network device is configured with two reference signal RSRP thresholds. One RSRP threshold corresponds to SBFD symbols and is used for comparison with N measurement results on SBFD symbols. The other RSRP threshold corresponds to non-SBFD symbols and is used for comparison with N measurement results on non-SBFD symbols. After comparing each symbol type, if at least one of the 2N measurement results has an RSRP higher than the RSRP threshold, then any RSRP measurement result above the threshold is randomly selected, and its corresponding reference signal is used as the target reference signal, and its corresponding symbol type is obtained. If no RSRP measurement result above the threshold exists among the 2N RSRP measurement results, then any RSRP measurement result above the threshold is randomly selected, and its corresponding reference signal is used as the target reference signal, and its corresponding symbol type is obtained.

[0299] Specifically, assume the terminal acquires four RSRP measurement results: RSRP#1 for SSB1 on SBFD symbols, RSRP#2 for SSB1 on non-SBFD symbols, RSRP#3 for SSB2 on SBFD symbols, and RSRP#4 for SSB2 on non-SBFD symbols. The network device configures an RSRP threshold of RSRP_threshold1 on SBFD symbols and an RSRP threshold of RSRP_threshold2 on non-SBFD symbols.

[0300] The terminal compares RSRP#1, RSRP#3, and RSRP_threshold1, and compares RSRP#2, RSRP#4, and RSRP_threshold2. It finds that RSRP#3 is higher than RSRP_threshold1, and RSRP#2 and RSRP#4 are higher than RSRP_threshold2. The terminal then arbitrarily selects RSRP#2 from among RSRP#2, RSRP#3, and RSRP#4. This means the terminal has determined the target reference signal to be SSB1, and the symbol type to be a non-SBFD symbol. The terminal then selects a PRACH occcasion associated with the reference signal SSB1 on the non-SBFD symbol to transmit PRACH. Alternatively, the terminal compares RSRP#1, RSRP#3, and RSRP_threshold1 respectively, and compares RSRP#2, RSRP#4, and RSRP_threshold2 respectively. If it finds that RSRP#1 and RSRP#3 are both lower than RSRP_threshold1, and RSRP#2 and RSRP#4 are both lower than RSRP_threshold2, then the terminal arbitrarily selects RSRP#4 from the four RSRP measurement results. That is, the terminal determines that the target reference signal is SSB2 and the symbol type is a non-SBFD symbol. The terminal selects the PRACH Occasion associated with the reference signal SSB2 on the non-SBFD symbol to transmit PRACH.

[0301] In this embodiment of the disclosure, the reference signals in the reference signal set do not need to be grouped; all reference signals undergo unified SSB-to-RO (SSB to RO (RACH Occasion)) mapping. That is, all reference signals undergo SSB-to-RO mapping on both SBFD symbols and non-SBFD symbols during PRACH transmission opportunities. As shown in Figure 3, all reference signals are cyclically mapped on the six ROs of SBFD symbols, and simultaneously, all reference signals are cyclically mapped on the ROs of non-SBFD symbols.

[0302] In one embodiment of this disclosure, taking the initial random access attempt as an example, RSRP is used as the measurement result for illustration. One reference signal corresponds to one RSRP measurement result.

[0303] Considering that the transmission period of the SSB reference signal and the period of the SBFD subband are configured independently, in this embodiment of the disclosure, the network device configuration cannot guarantee that SSB transmission opportunities exist on all SBFD symbols and non-SBFD symbols. In this case, the terminal needs to divide all selectable SSB reference signals into two groups: one group of SSB reference signals corresponds to the SBFD symbol type, and the other group of SSB reference signals corresponds to the non-SBFD symbol type. The grouping methods include:

[0304] Method 1: The network device sends a Reference Signal Packet Indication (i.e., the first indication), and the terminal determines the symbol type corresponding to each reference signal based on the Reference Signal Packet Indication. The network device, based on its own judgment, divides all SSBs into two groups and notifies the terminal. For example, in related technologies, with four candidate SSBs, the network device notifies the terminal via Radio Resource Control (RRC) signaling that SSB1 and SSB4 correspond to SBFD symbol types, and SSB2 and SSB3 correspond to non-SBFD symbol types, thus forming two reference signal packets: SSB1 and SSB4, and SSB2 and SSB3.

[0305] Method 2: The terminal determines the SSB reference signal groups corresponding to the two symbol types according to at least one of the following predefined rules.

[0306] Rule 1: Any reference signal in the reference signal set is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type. The terminal determines the symbol type of the reference signal based on the symbol type where the reference signal transmission opportunity is located.

[0307] For example, when all four SSBs can only be transmitted on non-SBFD symbols, the four SSBs belong to a reference signal packet corresponding to a non-SBFD symbol type. The reference signal packet corresponding to the SBFD symbol type is empty.

[0308] Rule 2: Any reference signal in the reference signal set is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type. The terminal determines the symbol type corresponding to the reference signal according to the reference signal grouping indication (i.e., the first indication).

[0309] For example, when all four SSBs can only be transmitted on non-SBFD symbols, the terminal may want to divide the four SSBs into two groups corresponding to the SBFD symbol type and non-SBFD symbol type. However, the terminal cannot perform grouping independently at this time and needs to perform grouping based on the reference signal grouping indication sent by the network device.

[0310] Rule 3: One or more reference signals in the reference signal set are transmitted on only one symbol type, and all reference signals are transmitted on two symbol types. The terminal determines the symbol type of the reference signal based on the symbol type where the reference signal transmission opportunity is located.

[0311] For example, among the four SSBs, SSB1 and SSB4 can only be transmitted on SBFD symbols, while SSB2 and SSB3 can only be transmitted on non-SBFD symbols. In this case, all candidate SSBs are naturally divided into two groups. The terminal only needs to determine the symbol type corresponding to each SSB based on the symbol type where each SSB transmission opportunity is located. That is, reference signals SSB1 and SSB4 correspond to SBFD symbol types, and reference signals SSB2 and SSB3 correspond to non-SBFD symbol types.

[0312] Rule 4: Each reference signal in the reference signal set is transmitted on two symbol types, and the terminal determines the symbol type corresponding to the reference signal according to the reference signal grouping instruction.

[0313] For example, when all four SSBs can be transmitted on both SBFD symbols and non-SBFD symbols, the terminal cannot independently divide the four candidate SSBs into two groups corresponding to the SBFD symbol type and non-SBFD symbol type. In this case, it is also necessary to group them based on the reference signal grouping indication sent by the network device.

[0314] Rule 5: If some reference signals in the reference signal set are transmitted on one symbol type, the terminal determines the symbol type corresponding to this part of the reference signals based on the symbol type where the reference signal transmission opportunity is located; if some reference signals in the reference signal set are transmitted on two symbol types, the terminal determines the symbol type corresponding to this part of the reference signals based on the reference signal grouping instruction.

[0315] This situation is equivalent to a combination of rules 1 and 4, or rules 3 and 4, mentioned above. For example, among the four SSBs, either of the two reference signals SSB1 and SSB2 can be transmitted on two symbol types. The symbol types corresponding to SSB1 and SSB2 need to be determined by the reference signal packet indication sent by the network device. For example, the network device notifies the terminal via RRC signaling that SSB1 corresponds to the SBFD symbol type and SSB2 corresponds to a non-SBFD symbol type. Either of the remaining two reference signals SSB3 and SSB4 can only be transmitted on one symbol type, but there is no restriction on whether these two SSBs can be transmitted on one or two symbol types. That is, both SSBs may be transmitted on SBFD symbols, both on non-SBFD symbols, or one on an SBFD symbol and the other on a non-SBFD symbol.

[0316] When both SSBs (SSB3 and SSB4) are transmitted on SBFD symbols, SSB3 and SSB4 correspond to the SBFD symbol type. In this case, SSB1, SSB3, and SSB4 correspond to the SBFD symbol type, while SSB2 corresponds to a non-SBFD symbol type.

[0317] When both SSBs are transmitted on non-SBFD symbols, SSB3 and SSB4 correspond to the non-SBFD symbol type. In this case, SSB1 corresponds to the SBFD symbol type, and SSB2, SSB3, and SSB4 correspond to the non-SBFD symbol type.

[0318] When SSB3 is transmitted on an SBFD symbol and SSB4 is transmitted on a non-SBFD symbol, SSB3 corresponds to the SBFD symbol type, and SSB4 corresponds to the non-SBFD symbol type. In this case, SSB1 and SSB3 correspond to the SBFD symbol type, and SSB2 and SSB4 correspond to the non-SBFD symbol type.

[0319] Once the terminal has identified all SSB packets, it measures the RSRP of the corresponding SSB packets on the SBFD symbol (an example of the aforementioned third reference signal measurement result set), and measures the RSRP of the corresponding SSB packets on the non-SBFD symbol (an example of the aforementioned fourth reference signal measurement result set). Finally, the terminal acquires N RSRP measurement results for N reference signals.

[0320] The terminal selects the target reference signal and its corresponding symbol type based on the RSRP threshold, which is configured by the network device. The network device can configure one or two RSRP thresholds.

[0321] When N RSRP measurements all correspond to the same symbol type (Rule 1), the network device only needs to configure one RSRP threshold. When N RSRP measurements correspond to two different symbol types (Rules 2 to 5), the network device can configure one or two RSRP thresholds.

[0322] If only one RSRP threshold is configured, each measurement result in the third reference signal measurement result set is compared with the RSRP threshold, and each measurement result in the fourth reference signal measurement result set is compared with the RSRP threshold.

[0323] If at least one measurement result in the third reference signal measurement result set is greater than the RSRP threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the RSRP threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0324] If all measurement results in the third reference signal measurement result set are less than or equal to the RSRP threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the RSRP threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0325] If two RSRP thresholds are configured, each measurement result in the third reference signal measurement result set is compared with the corresponding RSRP threshold, and each measurement result in the fourth reference signal measurement result set is compared with the corresponding RSRP threshold.

[0326] If at least one measurement result in the third reference signal measurement result set is greater than the corresponding RSRP threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the corresponding RSRP threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0327] If all measurement results in the third reference signal measurement result set are less than or equal to the corresponding RSRP threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the corresponding RSRP threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0328] Furthermore, after determining the reference signal packet results in this embodiment, the two reference signal packets undergo independent SSB-to-RO mapping. Reference signal packets corresponding to SFBD symbol types are cyclically mapped during PRACH transmission on SBFD symbols, while reference signal packets corresponding to non-SBFD symbol types are cyclically mapped during PRACH transmission on non-SBFD symbols. For example, when SSB1 and SSB3 correspond to SBFD symbol types, and SSB2 and SSB4 correspond to non-SBFD symbol types, as shown in Figure 4, SSB1 and SSB3 are cyclically mapped to the 6 ROs on SBFD symbols, and SSB2 and SSB4 are cyclically mapped to the 2 ROs on non-SBFD symbols.

[0329] In one embodiment of this disclosure, taking a subsequent random access attempt as an example, it adopts the same process as the initial random access attempt.

[0330] When a random access attempt fails, the terminal needs to determine whether the maximum number of attempts allowed in a single random access procedure has been reached. If it has, the random access procedure is deemed to have failed. If not, the next random access attempt is continued. In this embodiment of the disclosure, each random access attempt in a single random access procedure uses the same procedure to select the reference signal and its corresponding symbol type. Therefore, subsequent random access attempts, except for the initial random access attempt, can also use the same method as the initial random access attempt to select the target reference signal and its corresponding symbol type.

[0331] In one embodiment of this disclosure, taking a subsequent random access attempt as an example, the terminal needs to determine whether the current RACH attempt has reached the maximum number of attempts corresponding to the target symbol type.

[0332] In this embodiment, RSRP is used as the measurement result for illustration. When a random access attempt fails, the terminal needs to determine whether the number of failed random access attempts has reached the maximum number of attempts corresponding to the symbol type (i.e., the target symbol type) of the most recently failed PRACH transmission. The maximum number of attempts allowed on SBFD symbols and / or non-SBFD symbols can be configured by the network device. Based on the determination result, the terminal performs the current RACH attempt and determines the symbol type of the PRACH transmission through at least two of the following methods:

[0333] Method 1: If the number of failed attempts before the current RACH attempt is less than the maximum number of attempts corresponding to the symbol type of the previous RACH attempt (i.e., the current number of RACH attempts is less than the maximum number of attempts corresponding to the symbol type of the previous RACH attempt), the terminal measures the RSRP of all reference signals on the symbol type of the PRACH transmission determined in the previous RACH attempt. If the number of failed attempts before the current RACH attempt is greater than or equal to the maximum number of attempts corresponding to the symbol type of the previous RACH attempt (i.e., the current number of RACH attempts is greater than or equal to the maximum number of attempts corresponding to the symbol type of the previous RACH attempt), the terminal measures the RSRP of all candidate reference signals on a different symbol type.

[0334] Method 1 is applicable when all reference signals can appear in both symbol types. Specifically, assume the network device is configured to allow a maximum of 8 attempts per random access procedure and a maximum of 5 attempts per SBFD symbol per random access procedure. According to the aforementioned embodiment, the terminal determines that the initial RACH attempt will send PRACH on the SBFD symbol. When the first RACH attempt fails, the terminal has not reached the maximum number of attempts allowed per random access procedure, and the terminal performs a second RACH attempt (the current RACH attempt). At this time, the terminal has also not reached the maximum number of attempts per SBFD symbol. Therefore, when performing the current RACH attempt, the terminal measures the RSRP of N reference signals on the SBFD symbol.

[0335] Subsequently, the terminal selects a target reference signal based on the RSRP threshold. The network device can configure one or two RSRP thresholds. When one RSRP threshold is configured, the RSRP measurement results of the acquired N reference signals are compared with the RSRP threshold. If at least one of the N RSRP measurement results is greater than the RSRP threshold, one RSRP measurement result is selected from those greater than the threshold, and the reference signal corresponding to that RSRP measurement result is taken as the target reference signal. This determines that the current RACH attempt will still transmit PRACH on the PRACH occasion associated with the selected target reference signal on the SBFD symbol. When two RSRP thresholds are configured, the RSRP measurement results of the acquired N candidate reference signals are compared with the RSRP threshold configured for the SBFD symbol type. The method for selecting the target reference signal based on the comparison result is the same as in the case of configuring one RSRP threshold.

[0336] Furthermore, assuming the terminal has made five RACH attempts that all failed, and the terminal has not yet reached the maximum number of attempts allowed in a single random access procedure, the terminal makes a sixth RACH attempt (the current attempt). The terminal determines that the current RACH attempt has reached the maximum number of attempts on SBFD symbols. Therefore, when making the current RACH attempt, the terminal measures the RSRP of N candidate reference signals on non-SBFD symbols. Subsequently, the terminal selects the target reference signal based on the reference signal RSRP threshold. Similarly, the network device can configure one or two RSRP thresholds.

[0337] When a network device is configured with an RSRP threshold, the RSRP measurement results of N acquired reference signals are compared with the RSRP threshold. If at least one of the N RSRP measurement results is greater than the RSRP threshold, an RSRP measurement result greater than the threshold is selected, and the reference signal corresponding to that RSRP measurement result is taken as the target reference signal. This determines that the current RACH attempt will still transmit PRACH on a non-SBFD symbol PRACH occasion associated with the selected target reference signal. When a network device is configured with two RSRP thresholds, the RSRP measurement results of N candidate reference signals are compared with the RSRP threshold configured for non-SBFD symbol types. The method for selecting the target reference signal based on the comparison result is the same as the principle described in the case of configuring one RSRP threshold.

[0338] Typically, the maximum number of random access attempts allowed in a single random access procedure configured for a network device should be greater than the maximum number of attempts allowed on a single symbol during a single random access procedure. After determining whether the number of failed random access attempts has reached the maximum number of attempts allowed in a single random access procedure, the terminal can also determine whether the maximum number of attempts allowed on a single symbol during a single random access procedure has been reached. If it has, the random access procedure is considered to have failed; if it has not, the subsequent procedures are executed.

[0339] Alternatively, when starting the current RACH attempt, the terminal can first determine whether the maximum number of attempts allowed on a symbol in a single random access process has been reached, and then determine whether the number of failed random access attempts has reached the maximum number of attempts allowed in a single random access process.

[0340] Specifically, when a random access attempt fails, the terminal needs to determine whether the number of failed random access attempts has reached the maximum number of attempts allowed in a single random access procedure before attempting the next one. If it has, the random access procedure is deemed to have failed; otherwise, the terminal continues with the next random access attempt. In this embodiment, after a random access attempt fails, the terminal also needs to determine whether the number of failed random access attempts has reached the maximum number of attempts corresponding to the symbol type (i.e., the target symbol type) of the most recently failed PRACH transmission. The maximum number of attempts allowed for the terminal on SBFD symbols and / or non-SBFD symbols can be configured by the network device.

[0341] Method 2: If the number of failed attempts before the current RACH attempt is less than the maximum number of attempts corresponding to the symbol type of the previous RACH attempt (i.e., the current number of RACH attempts is less than the maximum number of attempts corresponding to the symbol type of the previous RACH attempt), the terminal measures the RSRP of the reference signal packet corresponding to the symbol type of the previous RACH attempt. If the number of failed attempts before the current RACH attempt is greater than or equal to the maximum number of attempts corresponding to the symbol type of the previous RACH attempt (i.e., the current number of RACH attempts is greater than or equal to the maximum number of attempts corresponding to the symbol type of the previous RACH attempt), the terminal measures the RSRP of the reference signal packet corresponding to the other symbol type.

[0342] Method 2 is applicable to the case where all reference signals are divided into two groups: one corresponding to the SBFD symbol type and the other not.

[0343] Specifically, the network device is configured to allow a maximum of 8 attempts per random access procedure, and a maximum of 5 attempts per SBFD symbol during a single random access procedure. It is assumed that the reference signal packets (including SSB1 and SSB3) correspond to SBFD symbol types, and that the reference signal packets (including SSB2 and SSB4) correspond to non-SBFD symbol types.

[0344] The terminal determines that the initial RACH attempt will send a PRACH on the SBFD symbol associated with SSB1 for the PRACH occasion. If the first RACH attempt fails, and the terminal has not reached the maximum number of attempts allowed in a single random access procedure, the terminal will attempt a second RACH attempt (the current RACH attempt). At this point, the terminal has also not reached the maximum number of attempts on the SBFD symbol. Therefore, when attempting the current RACH attempt, the terminal selects the reference signal packets SSB1 and SSB3 corresponding to the SBFD symbol used in the previous RACH attempt, measures the RSRP of SSB1 and SSB3 on the SBFD symbol, compares the RSRP measurement results with the RSRP threshold, and selects the target reference signal for the current RACH attempt.

[0345] Network devices can be configured with one or two RSRP thresholds. When a network device is configured with one RSRP threshold, the RSRP measurement results of the reference signal packet corresponding to the SBFD symbol type on the SBFD symbol are compared with the RSRP threshold. If at least one RSRP measurement result is greater than the RSRP threshold, an RSRP measurement result greater than the threshold is selected, and the reference signal corresponding to that RSRP measurement result is used as the target reference signal. When a network device is configured with two RSRP thresholds, the acquired RSRP measurement results are compared with the RSRP threshold configured for the SBFD symbol type. The method for selecting the target reference signal based on the comparison result is the same as the principle described in the case of configuring one RSRP threshold. After selecting the target reference signal, it is determined that the current RACH attempt will still transmit PRACH on the PRACH occasion associated with the selected reference signal on the SBFD symbol.

[0346] Furthermore, assuming the terminal fails five RACH attempts, it has not yet reached the maximum number of attempts allowed in a single random access procedure. The terminal then initiates a sixth RACH attempt (the current RACH attempt). The terminal determines that the current RACH attempt has reached the maximum number of attempts on SBFD symbols. Therefore, during the current RACH attempt, the terminal measures the RSRP of the reference signal sets SSB2 and SSB4 corresponding to the non-SBFD symbol types on the non-SBFD symbols. The terminal then selects the target reference signal based on the reference signal RSRP threshold. Similarly, network devices can configure one or two RSRP thresholds.

[0347] When a network device is configured with one RSRP threshold, the RSRP measurement results of the reference signal packets corresponding to non-SBFD symbol types on SBFD symbols are compared with the RSRP threshold. If at least one RSRP measurement result is greater than the RSRP threshold, an RSRP measurement result greater than the threshold is selected, and the reference signal corresponding to that RSRP measurement result is used as the target reference signal. When a network device is configured with two RSRP thresholds, the acquired RSRP measurement results are compared with the RSRP threshold configured for non-SBFD symbol types. The method for selecting the target reference signal based on the comparison result is the same as the principle described above for configuring one RSRP threshold. After selecting the target reference signal, it is determined that the current RACH attempt will still transmit PRACH on the PRACH occasion associated with the selected reference signal on a non-SBFD symbol.

[0348] Furthermore, the maximum number of attempts allowed in a single random access procedure by a network device is typically configured to be greater than the maximum number of attempts allowed on a single symbol during a single random access procedure. Therefore, when starting the current RACH attempt, the terminal can first determine whether the maximum number of attempts allowed on a single symbol during a single random access procedure has been reached. This disclosure does not impose any restrictions on the order of these determinations.

[0349] By using the above methods, it can be ensured that the preamble can be transmitted on the PRACH occasion where the symbol type with better transmission performance is located during the initial RACH attempt and subsequent RACH attempts, thereby improving the probability of successful random access.

[0350] The technical solutions provided in this disclosure are applicable to a variety of systems, especially 5G systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) or 5G system (5GS).

[0351] The terminal devices involved in the embodiments of this disclosure can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments disclosed herein.

[0352] The network device disclosed in this embodiment may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network equipment involved in this disclosure can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in this disclosure. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0353] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). Depending on the shape and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive-scale MIMO. It can also be diversity transmission, pre-coded transmission, or beamforming transmission, etc.

[0354] As shown in FIG5, the information processing apparatus of this embodiment, applied to a network device, includes: a processor 500, configured to read a program from a memory 520 and execute the following processes:

[0355] Send the second message to the terminal;

[0356] The second information includes one or more of the following:

[0357] First indication, one or more thresholds, the maximum number of attempts corresponding to the symbol type;

[0358] Wherein, the first indication is used to indicate the correspondence between reference signals and symbol types, and to determine the symbol type of the target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is the symbol type in which the PRACH transmission of the terminal is located, and the symbol type includes at least: a first symbol type and a second symbol type.

[0359] Transceiver 510 is used to receive and send data under the control of processor 500.

[0360] In Figure 5, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 510 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. Processor 500 is responsible for managing the bus architecture and general processing, and memory 520 may store data used by processor 500 during operation.

[0361] The processor 500 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0362] The processor 500 is responsible for managing the bus architecture and general processing, while the memory 520 can store the data used by the processor 500 when performing operations.

[0363] In some embodiments, the maximum number of attempts corresponding to the symbol type includes:

[0364] The maximum number of attempts for the first symbol type and the maximum number of attempts for the second symbol type; or

[0365] The maximum number of attempts corresponding to the first symbol type or the maximum number of attempts corresponding to the second symbol type; or

[0366] The maximum number of attempts corresponding to the first symbol type and the second symbol type.

[0367] The processor 500 is also used to read the program and perform the following steps:

[0368] Receive the PRACH sent by the terminal;

[0369] The type of the terminal is determined based on the symbol type to which the PRACH is located.

[0370] The types of terminals include:

[0371] SBFD terminal or non-SBFD terminal.

[0372] It should be noted that the apparatus provided in this disclosure can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiments of this disclosure will not be described in detail here.

[0373] As shown in Figure 6, the information processing apparatus of this embodiment, applied to a terminal, includes: a processor 600, configured to read a program from a memory 620 and execute the following processes:

[0374] Obtain first information;

[0375] Determine the symbol type of the PRACH transmission based on the first information;

[0376] On the symbol type, select the Physical Random Access Channel (PRACH) opportunity associated with the target reference signal for transmission.

[0377] The first information includes one or more of the following:

[0378] Measurement results of the reference signal;

[0379] The maximum number of attempts corresponding to the target symbol type;

[0380] The symbol types include at least: a first symbol type and a second symbol type.

[0381] Transceiver 610 is used to receive and send data under the control of processor 600.

[0382] In Figure 6, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 610 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 630 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0383] The processor 600 is responsible for managing the bus architecture and general processing, while the memory 620 can store the data used by the processor 600 when performing operations.

[0384] The processor 600 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0385] The processor executes any of the methods described in the embodiments of this disclosure by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0386] The first information includes the measurement results of the reference signal; the processor 600 is also configured to read the computer program in the memory and perform the following operations:

[0387] Obtain a set of first reference signal measurement results for all reference signals in the reference signal set on a first symbol type, and obtain a set of second reference signal measurement results for all reference signals in the reference signal set on a second symbol type;

[0388] The target reference signal is determined based on the first set of reference signal measurement results and the second set of reference signal measurement results;

[0389] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0390] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0391] Each measurement result in the first set of reference signal measurement results is compared with a first threshold, and each measurement result in the second set of reference signal measurement results is compared with the first threshold;

[0392] If at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0393] If all measurement results in the first reference signal measurement result set are less than or equal to the first threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the first threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0394] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0395] Each measurement result in the first set of reference signal measurement results is compared with a second threshold, and each measurement result in the second set of reference signal measurement results is compared with a third threshold;

[0396] If at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0397] If all measurement results in the first reference signal measurement result set are less than or equal to the second threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the third threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0398] The first information includes the measurement results of the reference signal; the processor 600 is also configured to read the computer program in the memory and perform the following operations:

[0399] Determine the symbol type corresponding to each reference signal in the reference signal set;

[0400] For a reference signal belonging to a first symbol type, obtain a third set of reference signal measurement results for the reference signal belonging to the first symbol type on the first symbol type; and for a reference signal belonging to a second symbol type, obtain a fourth set of reference signal measurement results for the reference signal belonging to the second symbol type on the second symbol type.

[0401] The target reference signal is determined based on the third reference signal measurement result set and the fourth reference signal measurement result set;

[0402] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0403] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0404] Receive a first indication sent by a network device, wherein the first indication is used to indicate the correspondence between reference signals and symbol types;

[0405] The symbol type corresponding to each reference signal is determined according to the first instruction.

[0406] The processor 600 is further configured to read the computer program in the memory and perform one or more of the following operations:

[0407] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located;

[0408] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0409] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal is transmitted.

[0410] If all the reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0411] If some reference signals are transmitted on one symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located; if some reference signals are transmitted on a first symbol type and a second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device.

[0412] The first indication is used to indicate the correspondence between the reference signal and the symbol type.

[0413] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0414] Each measurement result in the third reference signal measurement result set is compared with the fourth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the fourth threshold;

[0415] If at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0416] If all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0417] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0418] Each measurement result in the third reference signal measurement result set is compared with the fifth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the sixth threshold;

[0419] If at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0420] If all measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0421] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0422] Cyclicly map reference signals belonging to the first symbol type to physical random access channel opportunities of the first symbol type;

[0423] Reference signals belonging to the second symbol type are cyclically mapped to physical random access channel opportunities of the second symbol type.

[0424] The first information includes the maximum number of attempts corresponding to the target symbol type; the processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0425] Compare the current number of RACH attempts with the maximum number of attempts corresponding to the target symbol type;

[0426] If the current RACH attempt count is less than the maximum attempt count corresponding to the target symbol type, obtain the fifth reference signal measurement result set of the first target object on the target symbol type; if the current RACH attempt count is greater than or equal to the maximum attempt count corresponding to the target symbol type, obtain the sixth reference signal measurement result set of the second target object on other symbol types, wherein the first target object and the second target object include a reference signal set, or, the first target object includes reference signals in the reference signal set whose symbol type is the target symbol type, and the second target object includes reference signals in the reference signal set whose symbol type is the other symbol type, and the target symbol type is the symbol type in which the PRACH transmission occurred in the previous RACH attempt;

[0427] The target reference signal is determined based on the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0428] The symbol type corresponding to the target reference signal is used as the symbol type in which the PRACH transmission takes place.

[0429] Wherein, if the target symbol type is a first symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the first symbol type, and the other symbol types are second symbol types;

[0430] If the target symbol type is the second symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the second symbol type, and the other symbol types are the first symbol types.

[0431] The processor 600 is further configured to read the computer program in the memory and perform the following operations:

[0432] Each measurement result in the target reference signal measurement result set is compared with the seventh threshold corresponding to the target reference signal measurement result set, wherein the target reference signal measurement result set includes the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0433] If at least one measurement result in the target reference signal measurement result set is greater than the seventh threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0434] If all measurement results in the target reference signal measurement result set are less than or equal to the seventh threshold, one measurement result is randomly selected from the target reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0435] The seventh threshold corresponding to the fifth reference signal measurement result set may be the same as or different from the seventh threshold corresponding to the sixth reference signal measurement result set.

[0436] The symbol types include: SBFD symbols and non-SBFD symbols;

[0437] The reference signal includes one or more of SSB and CSI-RS.

[0438] The measurement results of the reference signal include one or more of the following:

[0439] RSRP, RSRQ, SNR, SINR.

[0440] It should be noted that the apparatus provided in this disclosure can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiments of this disclosure will not be described in detail here.

[0441] As shown in Figure 7, the information processing apparatus of this embodiment, applied to a terminal, includes:

[0442] The first acquisition unit 701 is used to acquire first information; the first determination unit 702 is used to determine the symbol type of the PRACH transmission based on the first information; the first processing unit 703 is used to select a physical random access channel opportunity associated with the target reference signal to transmit the PRACH on the symbol type.

[0443] The first information includes one or more of the following:

[0444] Measurement results of the reference signal;

[0445] The maximum number of attempts corresponding to the target symbol type;

[0446] The symbol types include at least: a first symbol type and a second symbol type.

[0447] In some embodiments, the first information includes the measurement result of the reference signal; the first determining unit 702 includes:

[0448] The first acquisition subunit is configured to acquire a set of first reference signal measurement results for all reference signals in the reference signal set on a first symbol type, and to acquire a set of second reference signal measurement results for all reference signals in the reference signal set on a second symbol type.

[0449] The first determining subunit is configured to determine the target reference signal based on the first set of reference signal measurement results and the second set of reference signal measurement results.

[0450] The second acquisition subunit is used to take the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located.

[0451] In some embodiments, the first determining subunit is further configured to:

[0452] Each measurement result in the first set of reference signal measurement results is compared with a first threshold, and each measurement result in the second set of reference signal measurement results is compared with the first threshold;

[0453] If at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0454] If all measurement results in the first reference signal measurement result set are less than or equal to the first threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the first threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0455] In some embodiments, the first determining subunit is further configured to:

[0456] Each measurement result in the first set of reference signal measurement results is compared with a second threshold, and each measurement result in the second set of reference signal measurement results is compared with a third threshold;

[0457] If at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal;

[0458] If all measurement results in the first reference signal measurement result set are less than or equal to the second threshold, and if all measurement results in the second reference signal measurement result set are less than or equal to the third threshold, then one measurement result is randomly selected from the first reference signal measurement result set and the second reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0459] In some embodiments, the first determining unit includes:

[0460] The first determining subunit is used to determine the symbol type corresponding to each reference signal in the reference signal set;

[0461] The first acquisition subunit is configured to acquire, for a reference signal belonging to a first symbol type, a third set of reference signal measurement results for the reference signal belonging to the first symbol type on the first symbol type, and to acquire, for a reference signal belonging to a second symbol type, a fourth set of reference signal measurement results for the reference signal belonging to the second symbol type on the second symbol type.

[0462] The second determining subunit is used to determine the target reference signal based on the third reference signal measurement result set and the fourth reference signal measurement result set;

[0463] The third determining subunit is used to determine the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located.

[0464] In some embodiments, the first determining subunit is further configured to:

[0465] Receive a first indication sent by a network device, wherein the first indication is used to indicate the correspondence between reference signals and symbol types;

[0466] The symbol type corresponding to each reference signal is determined according to the first instruction.

[0467] In some embodiments, the first determining subunit is further configured to include one or more of the following:

[0468] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located;

[0469] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0470] If each reference signal is transmitted on only one symbol type, and all reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal is transmitted.

[0471] If all the reference signals are transmitted on the first symbol type and the second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device;

[0472] If some reference signals are transmitted on one symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type where the reference signal transmission opportunity is located; if some reference signals are transmitted on a first symbol type and a second symbol type, the symbol type corresponding to each reference signal is determined according to the first instruction sent by the network device.

[0473] The first indication is used to indicate the correspondence between the reference signal and the symbol type.

[0474] In some embodiments, the second determining subunit is further configured to:

[0475] Each measurement result in the third reference signal measurement result set is compared with the fourth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the fourth threshold;

[0476] If at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0477] If all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0478] In some embodiments, the second determining subunit is further configured to:

[0479] Each measurement result in the third reference signal measurement result set is compared with the fifth threshold, and each measurement result in the fourth reference signal measurement result set is compared with the sixth threshold;

[0480] If at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0481] If all measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and if all measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, then one measurement result is randomly selected from the third reference signal measurement result set and the fourth reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is taken as the target reference signal.

[0482] In some embodiments, the apparatus may further include:

[0483] The second processing unit is configured to cyclically map reference signals belonging to the first symbol type to physical random access channel opportunities on the first symbol type; and to cyclically map reference signals belonging to the second symbol type to physical random access channel opportunities on the second symbol type.

[0484] In some embodiments, the first information includes the maximum number of attempts corresponding to the target symbol type; the first determining unit 702 includes:

[0485] The first comparison subunit is used to compare the current number of RACH attempts with the maximum number of attempts corresponding to the target symbol type;

[0486] The first processing subunit is configured to: if the current RACH attempt count is less than the maximum attempt count corresponding to the target symbol type, obtain a fifth set of reference signal measurement results for the first target object on the target symbol type; if the current RACH attempt count is greater than or equal to the maximum attempt count corresponding to the target symbol type, obtain a sixth set of reference signal measurement results for the second target object on other symbol types, wherein the first target object and the second target object include a set of reference signals, or the first target object includes reference signals in the set whose symbol type is the target symbol type, and the second target object includes reference signals in the set whose symbol type is the other symbol type, wherein the target symbol type is the symbol type in which the PRACH transmission occurred in the previous RACH attempt;

[0487] The first determining subunit is used to determine the target reference signal based on the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0488] The second determining subunit is used to determine the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located.

[0489] In some embodiments, if the target symbol type is a first symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the first symbol type, and the other symbol types are second symbol types; if the target symbol type is a second symbol type, the maximum number of attempts corresponding to the target symbol type is the maximum number of attempts corresponding to the second symbol type, and the other symbol types are first symbol types.

[0490] In some embodiments, the first determining subunit is further configured to:

[0491] Each measurement result in the target reference signal measurement result set is compared with the seventh threshold corresponding to the target reference signal measurement result set, wherein the target reference signal measurement result set includes the fifth reference signal measurement result set or the sixth reference signal measurement result set;

[0492] If at least one measurement result in the target reference signal measurement result set is greater than the seventh threshold, one measurement result is randomly selected from the at least one measurement result as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal;

[0493] If all measurement results in the target reference signal measurement result set are less than or equal to the seventh threshold, one measurement result is randomly selected from the target reference signal measurement result set as the target measurement result, and the reference signal corresponding to the target measurement result is used as the target reference signal.

[0494] In some embodiments, the seventh threshold corresponding to the fifth reference signal measurement result set may be the same as or different from the seventh threshold corresponding to the sixth reference signal measurement result set.

[0495] In some embodiments, the symbol type includes: SBFD symbols and non-SBFD symbols;

[0496] The reference signal includes one or more of SSB and CSI-RS.

[0497] In some embodiments, the measurement results of the reference signal include one or more of the following: RSRP, RSRQ, SNR, SINR.

[0498] It should be noted that the apparatus provided in this disclosure can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiments of this disclosure will not be described in detail here.

[0499] As shown in Figure 8, the information processing apparatus of this disclosure embodiment is applied to a network device and includes:

[0500] The first sending unit 801 is used to send second information to the terminal;

[0501] The second information includes one or more of the following:

[0502] First indication, one or more thresholds, the maximum number of attempts corresponding to the symbol type;

[0503] Wherein, the first indication is used to indicate the correspondence between reference signals and symbol types, and to determine the symbol type of the target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is the symbol type in which the PRACH transmission of the terminal is located, and the symbol type includes at least: a first symbol type and a second symbol type.

[0504] In some embodiments, the maximum number of attempts corresponding to the symbol type includes:

[0505] The maximum number of attempts for the first symbol type and the maximum number of attempts for the second symbol type; or

[0506] The maximum number of attempts corresponding to the first symbol type or the maximum number of attempts corresponding to the second symbol type; or

[0507] The maximum number of attempts corresponding to the first symbol type and the second symbol type.

[0508] In some embodiments, the apparatus may further include:

[0509] The first receiving unit is used to receive the PRACH sent by the terminal;

[0510] The first processing unit is used to determine the type of the terminal based on the symbol type of the PRACH symbol.

[0511] In some embodiments, the type of terminal includes:

[0512] SBFD terminal or non-SBFD terminal.

[0513] It should be noted that the apparatus provided in this disclosure can implement all the method steps implemented in the above method embodiments and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiments of this disclosure will not be described in detail here.

[0514] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0515] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0516] This disclosure also provides a communication device, including: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps in the information processing method described above.

[0517] This disclosure also provides a computer program product, including computer instructions. When executed by a processor, these computer instructions implement the various processes of the above-described information processing method embodiments and achieve the same technical effects. To avoid repetition, further details are omitted here.

[0518] This disclosure also provides a processor-readable storage medium storing a program. When the program is executed by a processor, it implements the various processes of the above-described information processing method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here. The readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., magneto-optical disks (MO), etc.), optical storage (e.g., compact discs (CD), digital versatile discs (DVD), Blu-ray discs (BD), high-definition versatile discs (HVD), etc.), and semiconductor storage (e.g., ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND FLASH), solid state disks (SSD), etc.).

[0519] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0520] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the related technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this disclosure.

[0521] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this disclosure without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this disclosure.

Claims

1. An information processing method applied to a terminal, the method comprising: obtaining first information; determining a symbol type in which a physical random access channel (PRACH) transmission is located according to the first information; and selecting a PRACH transmission opportunity associated with a target reference signal on the symbol type; wherein the first information comprises one or more of: a measurement result of a reference signal; a maximum number of attempts corresponding to the target symbol type; and the symbol type comprises at least a first symbol type and a second symbol type. In a case where the first information comprises a measurement result of a reference signal, the determining of the symbol type in which the PRACH transmission is located according to the first information comprises: obtaining a first set of reference signal measurement results of all reference signals in a reference signal set on the first symbol type, and obtaining a second set of reference signal measurement results of all reference signals in the reference signal set on the second symbol type; determining the target reference signal according to the first set of reference signal measurement results and the second set of reference signal measurement results; and determining the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located. In a case where the determining of the target reference signal according to the first set of reference signal measurement results and the second set of reference signal measurement results comprises: comparing each measurement result in the first set of reference signal measurement results with a first threshold, and comparing each measurement result in the second set of reference signal measurement results with the first threshold; if at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, selecting a target measurement result from the at least one measurement result, and selecting a reference signal corresponding to the target measurement result as the target reference signal; and if all measurement results in the first set of reference signal measurement results are less than or equal to the first threshold, and all measurement results in the second set of reference signal measurement results are less than or equal to the first threshold, selecting a target measurement result from the first set of reference signal measurement results and the second set of reference signal measurement results, and selecting a reference signal corresponding to the target measurement result as the target reference signal. In a case where the determining of the target reference signal according to the first set of reference signal measurement results and the second set of reference signal measurement results comprises: comparing each measurement result in the first set of reference signal measurement results with a second threshold, and comparing each measurement result in the second set of reference signal measurement results with a third threshold. ​ ​ ​ ​ 2. The method of claim 1, wherein, ​ ​ ​ ​ 3. The method of claim 2, wherein, ​ ​ ​ ​ 4. The method of claim 2, wherein, ​ ​ If at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, a target measurement result is selected from the at least one measurement result, and a reference signal corresponding to the target measurement result is selected as the target reference signal; If all measurement results in the first set of reference signal measurement results are less than or equal to the second threshold, and all measurement results in the second set of reference signal measurement results are less than or equal to the third threshold, a target measurement result is selected from the first set of reference signal measurement results and the second set of reference signal measurement results, and a reference signal corresponding to the target measurement result is selected as the target reference signal.

5. The method of claim 1, wherein, The first information includes measurement results of reference signals; and the symbol type in which the PRACH transmission is located is determined according to the first information, including: determining the symbol type corresponding to each reference signal in a set of reference signals; for a reference signal belonging to a first symbol type, obtaining a third set of reference signal measurement results of the reference signal belonging to the first symbol type on the first symbol type, and for a reference signal belonging to a second symbol type, obtaining a fourth set of reference signal measurement results of the reference signal belonging to the second symbol type on the second symbol type; determining the target reference signal according to the third set of reference signal measurement results and the fourth set of reference signal measurement results; determining the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located.

6. The method of claim 5, wherein, The determination of the symbol type corresponding to each reference signal in the set of reference signals includes: receiving a first indication sent by a network device, wherein the first indication indicates the correspondence between a reference signal and a symbol type; determining the symbol type corresponding to each reference signal according to the first indication.

7. The method of claim 5, wherein, The determination of the symbol type corresponding to each reference signal in the set of reference signals includes one or more of the following: if each reference signal is transmitted only on one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type in which the reference signal transmission opportunity is located; if each reference signal is transmitted only on one symbol type, and all reference signals are transmitted on the same symbol type, the symbol type corresponding to each reference signal is determined according to the first indication sent by the network device; if each reference signal is transmitted only on one symbol type, and all reference signals are scattered on the first symbol type and the second symbol type, the symbol type corresponding to the reference signal is determined according to the symbol type in which the reference signal transmission opportunity is located; if each reference signal is transmitted on the first symbol type and the second symbol type, the symbol type corresponding to each reference signal is determined according to the first indication sent by the network device; If part of the reference signals are transmitted on one symbol type, a symbol type corresponding to the reference signal is determined according to a symbol type in which the reference signal transmission opportunity is located; if part of the reference signals are transmitted on the first symbol type and the second symbol type, a symbol type corresponding to each reference signal is determined according to a first indication sent by the network device; The first indication is used to represent the correspondence between the reference signal and the symbol type.

8. The method of claim 5, wherein, The method further comprises: comparing each measurement result in the third reference signal measurement result set with a fourth threshold, and comparing each measurement result in the fourth reference signal measurement result set with the fourth threshold; If at least one measurement result in the third reference signal measurement result set is greater than the fourth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the fourth threshold, an optional one of the at least one measurement result is taken as a target measurement result, and a reference signal corresponding to the target measurement result is taken as the target reference signal; If all measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and all measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, an optional one of the third reference signal measurement result set and the fourth reference signal measurement result set is taken as a target measurement result, and a reference signal corresponding to the target measurement result is taken as the target reference signal.

9. The method of claim 5, wherein, The method further comprises: comparing each measurement result in the third reference signal measurement result set with a fifth threshold, and comparing each measurement result in the fourth reference signal measurement result set with a sixth threshold; If at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, an optional one of the at least one measurement result is taken as a target measurement result, and a reference signal corresponding to the target measurement result is taken as the target reference signal; If all measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and all measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, an optional one of the third reference signal measurement result set and the fourth reference signal measurement result set is taken as a target measurement result, and a reference signal corresponding to the target measurement result is taken as the target reference signal.

10. The method of claim 5, wherein, The method further comprises: cyclically mapping reference signals belonging to the first symbol type to a physical random access channel opportunity on the first symbol type; cyclically mapping reference signals belonging to a second symbol type onto physical random access channel opportunities on the second symbol type.

11. The method of claim 1, wherein, The first information comprises a maximum number of attempts corresponding to the target symbol type; and determining, according to the first information, a symbol type on which a physical random access channel (PRACH) transmission is located comprises: comparing a current random access channel (RACH) attempt number with the maximum number of attempts corresponding to the target symbol type; if the current RACH attempt number is less than the maximum number of attempts corresponding to the target symbol type, obtaining a fifth reference signal measurement result set of a first target object on the target symbol type; and if the current RACH attempt number is greater than or equal to the maximum number of attempts corresponding to the target symbol type, obtaining a sixth reference signal measurement result set of a second target object on other symbol types, wherein the first target object and the second target object comprise a reference signal set, or the first target object comprises reference signals of the reference signal set that are of the target symbol type, and the second target object comprises reference signals of the reference signal set that are of the other symbol types, the target symbol type being a symbol type on which a PRACH transmission in a previous RACH attempt is located; determining a target reference signal according to the fifth reference signal measurement result set or the sixth reference signal measurement result set; and taking a symbol type corresponding to the target reference signal as the symbol type on which the PRACH transmission is located.

12. The method of claim 11, wherein if the target symbol type is a first symbol type, the maximum number of attempts corresponding to the target symbol type is a maximum number of attempts corresponding to the first symbol type, and the other symbol types are second symbol types; and if the target symbol type is a second symbol type, the maximum number of attempts corresponding to the target symbol type is a maximum number of attempts corresponding to the second symbol type, and the other symbol types are first symbol types.

13. The method of claim 11, wherein, The determining, according to the fifth reference signal measurement result set or the sixth reference signal measurement result set, of a target reference signal comprises: comparing each measurement result in a target reference signal measurement result set with a seventh threshold corresponding to the target reference signal measurement result set, wherein the target reference signal measurement result set comprises the fifth reference signal measurement result set or the sixth reference signal measurement result set; if at least one measurement result in the target reference signal measurement result set is greater than the seventh threshold, taking a target measurement result from the at least one measurement result, and taking a reference signal corresponding to the target measurement result as the target reference signal; and if all measurement results in the target reference signal measurement result set are less than or equal to the seventh threshold, taking a target measurement result from the target reference signal measurement result set, and taking a reference signal corresponding to the target measurement result as the target reference signal.

14. The method of claim 13, wherein The seventh threshold corresponding to the fifth reference signal measurement result set is the same as or different from the seventh threshold corresponding to the sixth reference signal measurement result set.

15. The method of any of claims 1-14, wherein, The symbol type comprises: a sub-band full duplex (SBFD) symbol and a non-SBFD symbol. The reference signal comprises one or more of: a synchronization signal / physical broadcast channel signal block (SSB) and a channel state information reference signal (CSI-RS).

16. The method of any one of claims 1-14, wherein, The reference signal measurement result comprises one or more of: a reference signal received power (RSRP), a reference signal received quality (RSRQ), a signal-to-noise ratio (SNR), and a signal-to-interference-plus-noise ratio (SINR).

17. An information processing method applied to a network device, the method comprising: sending second information to a terminal, wherein the second information comprises one or more of: a first indication, one or more thresholds, and a maximum number of attempts corresponding to a symbol type; wherein the first indication is used to represent a correspondence between a reference signal and a symbol type and to determine a symbol type of a target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is a symbol type in which the terminal transmits a PRACH; and the symbol type comprises at least: a first symbol type and a second symbol type.

18. The method of claim 17, wherein, The maximum number of attempts corresponding to the symbol type comprises: a maximum number of attempts corresponding to the first symbol type and a maximum number of attempts corresponding to the second symbol type; or a maximum number of attempts corresponding to the first symbol type or a maximum number of attempts corresponding to the second symbol type; or a maximum number of attempts corresponding to the first symbol type and a maximum number of attempts corresponding to the second symbol type.

19. The method of claim 17, wherein, The method further comprises: receiving a PRACH transmitted by the terminal; determining a type of the terminal according to a symbol type in which the PRACH is located.

20. The method of claim 19, wherein, The type of the terminal comprises: an SBFD terminal or a non-SBFD terminal.

21. An information processing apparatus for use in a terminal, the apparatus comprising: a memory, a transceiver, and a processor: the memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; the processor is configured to read the computer program in the memory and perform the following operations: obtain first information; determine a symbol type in which a PRACH is transmitted according to the first information; select a physical random access channel (PRACH) opportunity associated with a target reference signal on the symbol type to transmit the PRACH; wherein the first information comprises one or more of: a reference signal measurement result; a maximum number of attempts corresponding to a target symbol type; the symbol type comprises at least: a first symbol type and a second symbol type.

22. The apparatus of claim 21, wherein, The first information comprises a reference signal measurement result; and the processor is further configured to read the computer program in the memory and perform the following operations: obtain a first reference signal measurement result set of all reference signals in a reference signal set on a first symbol type, and obtain a second reference signal measurement result set of all reference signals in the reference signal set on a second symbol type; determining the target reference signal according to the first set of reference signal measurement results and the second set of reference signal measurement results; determining the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located.

23. The apparatus of claim 22, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: comparing each measurement result in the first set of reference signal measurement results with a first threshold, and comparing each measurement result in the second set of reference signal measurement results with the first threshold; if at least one measurement result in the first set of reference signal measurement results is greater than the first threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the first threshold, taking an optional one of the at least one measurement result as a target measurement result, and taking the reference signal corresponding to the target measurement result as the target reference signal; if all measurement results in the first set of reference signal measurement results are less than or equal to the first threshold, and if all measurement results in the second set of reference signal measurement results are less than or equal to the first threshold, taking an optional one of the first set of reference signal measurement results and the second set of reference signal measurement results as a target measurement result, and taking the reference signal corresponding to the target measurement result as the target reference signal.

24. The apparatus of claim 22, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: comparing each measurement result in the first set of reference signal measurement results with a second threshold, and comparing each measurement result in the second set of reference signal measurement results with a third threshold; if at least one measurement result in the first set of reference signal measurement results is greater than the second threshold and / or if at least one measurement result in the second set of reference signal measurement results is greater than the third threshold, taking an optional one of the at least one measurement result as a target measurement result, and taking the reference signal corresponding to the target measurement result as the target reference signal; if all measurement results in the first set of reference signal measurement results are less than or equal to the second threshold, and if all measurement results in the second set of reference signal measurement results are less than or equal to the third threshold, taking an optional one of the first set of reference signal measurement results and the second set of reference signal measurement results as a target measurement result, and taking the reference signal corresponding to the target measurement result as the target reference signal.

25. The apparatus of claim 21, wherein, The first information includes measurement results of reference signals; and the processor is further configured to read the computer program in the memory and perform the following operations: determining the symbol type corresponding to each reference signal in the set of reference signals; For the reference signals belonging to the first symbol type, obtain a third set of reference signal measurement results of the reference signals belonging to the first symbol type on the first symbol type, and for the reference signals belonging to the second symbol type, obtain a fourth set of reference signal measurement results of the reference signals belonging to the second symbol type on the second symbol type; Determine the target reference signal according to the third set of reference signal measurement results and the fourth set of reference signal measurement results; Take the symbol type corresponding to the target reference signal as the symbol type in which the PRACH transmission is located.

26. The apparatus of claim 25, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: receive a first indication sent by a network device, wherein the first indication is used to represent a correspondence between reference signals and symbol types; determine the symbol type corresponding to each reference signal according to the first indication.

27. The apparatus of claim 25, wherein, The processor is further configured to read a computer program in the memory and perform one or more of the following operations: if each reference signal is transmitted only on one symbol type and all reference signals are transmitted on the same symbol type, determine the symbol type corresponding to the reference signal according to the symbol type in which the reference signal transmission opportunity is located; if each reference signal is transmitted only on one symbol type and all reference signals are transmitted on the same symbol type, determine the symbol type corresponding to each reference signal according to the first indication sent by the network device; if each reference signal is transmitted only on one symbol type and all reference signals are scattered on the first symbol type and the second symbol type, determine the symbol type corresponding to the reference signal according to the symbol type in which the reference signal transmission opportunity is located; if each reference signal is transmitted on the first symbol type and the second symbol type, determine the symbol type corresponding to each reference signal according to the first indication sent by the network device; if part of the reference signals are transmitted on one symbol type, determine the symbol type corresponding to the reference signal according to the symbol type in which the reference signal transmission opportunity is located; if part of the reference signals are transmitted on the first symbol type and the second symbol type, determine the symbol type corresponding to each reference signal according to the first indication sent by the network device; The first indication is used to represent the correspondence between the reference signals and the symbol types.

28. The apparatus of claim 25, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: compare each measurement result in the third set of reference signal measurement results with a fourth threshold, and compare each measurement result in the fourth set of reference signal measurement results with the fourth threshold; if at least one measurement result in the third set of reference signal measurement results is greater than the fourth threshold and / or if at least one measurement result in the fourth set of reference signal measurement results is greater than the fourth threshold, take an optional one of the at least one measurement result as a target measurement result, and take the reference signal corresponding to the target measurement result as the target reference signal; If all the measurement results in the third reference signal measurement result set are less than or equal to the fourth threshold, and if all the measurement results in the fourth reference signal measurement result set are less than or equal to the fourth threshold, a target measurement result is selected from any one of the third reference signal measurement result set and the fourth reference signal measurement result set, and a target reference signal corresponding to the target measurement result is selected as the target reference signal.

29. The apparatus of claim 25, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: comparing each measurement result in the third reference signal measurement result set with a fifth threshold, and comparing each measurement result in the fourth reference signal measurement result set with a sixth threshold; if at least one measurement result in the third reference signal measurement result set is greater than the fifth threshold and / or if at least one measurement result in the fourth reference signal measurement result set is greater than the sixth threshold, a target measurement result is selected from the at least one measurement result, and a target reference signal corresponding to the target measurement result is selected as the target reference signal; if all the measurement results in the third reference signal measurement result set are less than or equal to the fifth threshold, and if all the measurement results in the fourth reference signal measurement result set are less than or equal to the sixth threshold, a target measurement result is selected from any one of the third reference signal measurement result set and the fourth reference signal measurement result set, and a target reference signal corresponding to the target measurement result is selected as the target reference signal.

30. The apparatus of claim 25, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: cyclically mapping reference signals belonging to a first symbol type to a physical random access channel opportunity on the first symbol type; cyclically mapping reference signals belonging to a second symbol type to a physical random access channel opportunity on the second symbol type.

31. The apparatus of claim 21, wherein, The first information includes a maximum number of attempts corresponding to the target symbol type; the processor is further configured to read the computer program in the memory and perform the following operations: comparing a current RACH attempt number with the maximum number of attempts corresponding to the target symbol type; if the current RACH attempt number is less than the maximum number of attempts corresponding to the target symbol type, a fifth reference signal measurement result set of a first target object on the target symbol type is obtained; if the current RACH attempt number is greater than or equal to the maximum number of attempts corresponding to the target symbol type, a sixth reference signal measurement result set of a second target object on other symbol types is obtained, wherein the first target object and the second target object include a reference signal set, or the first target object includes reference signals in the reference signal set whose symbol types are the target symbol type, the second target object includes reference signals in the reference signal set whose symbol types are the other symbol types, and the target symbol type is a symbol type in which PRACH transmission is performed in a previous RACH attempt. determining a target reference signal according to the fifth set of reference signal measurement results or the sixth set of reference signal measurement results; determining a symbol type corresponding to the target reference signal as a symbol type in which the PRACH transmission is located.

32. The apparatus of claim 31, wherein, If the target symbol type is a first symbol type, a maximum number of attempts corresponding to the target symbol type is a maximum number of attempts corresponding to the first symbol type, and the other symbol type is a second symbol type; If the target symbol type is a second symbol type, a maximum number of attempts corresponding to the target symbol type is a maximum number of attempts corresponding to the second symbol type, and the other symbol type is a first symbol type.

33. The apparatus of claim 31, wherein, The processor is further configured to read the computer program in the memory and perform the following operations: comparing each measurement result in a target set of reference signal measurement results with a seventh threshold corresponding to the target set of reference signal measurement results, wherein the target set of reference signal measurement results includes the fifth set of reference signal measurement results or the sixth set of reference signal measurement results; If at least one measurement result in the target set of reference signal measurement results is greater than the seventh threshold, selecting a target measurement result from the at least one measurement result, and selecting a reference signal corresponding to the target measurement result as the target reference signal; If all measurement results in the target set of reference signal measurement results are less than or equal to the seventh threshold, selecting a target measurement result from the target set of reference signal measurement results, and selecting a reference signal corresponding to the target measurement result as the target reference signal.

34. The apparatus of claim 33, wherein, The seventh threshold corresponding to the fifth set of reference signal measurement results is the same as or different from the seventh threshold corresponding to the sixth set of reference signal measurement results.

35. The apparatus of any one of claims 21-34, wherein, The symbol type includes an SBFD symbol and a non-SBFD symbol. The reference signal includes one or more of an SSB and a CSI-RS.

36. The device of any one of claims 21-34, wherein, The measurement result of the reference signal includes one or more of an RSRP, an RSRQ, an SNR, and an SINR.

37. An information processing apparatus for use in a network device, the apparatus comprising: The memory, the transceiver, and the processor: The memory is configured to store a computer program. The transceiver is configured to transceive data under control of the processor. The processor is configured to read the computer program in the memory and perform the following operations: sending second information to a terminal; The second information includes one or more of the following: a first indication, one or more thresholds, and a maximum number of attempts corresponding to a symbol type. The first indication is used to indicate a correspondence between a reference signal and a symbol type, and to determine a symbol type of a target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is a symbol type in which a PRACH transmission of the terminal is located, and the symbol type at least includes a first symbol type and a second symbol type.

38. The apparatus of claim 37, wherein, The maximum number of attempts corresponding to the symbol type includes: a maximum number of attempts corresponding to the first symbol type and a maximum number of attempts corresponding to the second symbol type; or a maximum number of attempts corresponding to the first symbol type or a maximum number of attempts corresponding to the second symbol type; or a maximum number of attempts corresponding to the first symbol type and a maximum number of attempts corresponding to the second symbol type.

39. The device of claim 37, wherein, The processor is further configured to read a computer program in the memory and perform the following operations: receiving the PRACH transmitted by the terminal; determining the type of the terminal according to the symbol type in which the PRACH is located.

40. The apparatus of claim 39, wherein, The type of the terminal includes: an SBFD terminal or a non-SBFD terminal.

41. An information processing apparatus applied to a terminal, the apparatus comprising: a first obtaining unit configured to obtain first information; a first determining unit configured to determine a symbol type in which a PRACH transmission is located according to the first information; a first processing unit configured to select a PRACH transmission opportunity associated with a target reference signal on the symbol type to transmit a PRACH; The first information includes one or more of the following: a measurement result of a reference signal; a maximum number of attempts corresponding to a target symbol type; The symbol type includes at least a first symbol type and a second symbol type.

42. An information processing apparatus applied to a network device, the apparatus comprising: a first sending unit configured to send second information to a terminal; The second information includes a first indication and / or one or more thresholds; The first indication is used to represent the correspondence between the reference signal and the symbol type and to determine the symbol type of the target reference signal, and the threshold is used to select the target reference signal; the symbol type corresponding to the target reference signal is the symbol type in which the terminal transmits the PRACH.

43. A processor-readable storage medium, the processor-readable storage medium storing a computer program, the computer program being used to cause the processor to execute the method of any one of claims 1 to 20.

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