Information processing method and device, network equipment and terminal

Abstract

The invention provides an information processing method and device, network equipment and a terminal, and relates to the technical field of communication. The method comprises the following steps that: network equipment determines the time domain length of a first cyclic prefix (CP) transmitted by a terminal signal according to transmission configuration related information of the terminal; the network equipment sends indication information to the terminal; wherein the indication information is used for indicating the time domain length of the first CP. According to the invention, the problem that the current CP time domain length configuration cannot meet more application scene requirements can be solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information processing method, apparatus, network equipment and terminal. Background Art

[0002] In terrestrial mobile communication systems, orthogonal frequency division multiplex (OFDM) waveforms have been used since 4G networks. OFDM waveforms are characterized by dividing multiple subcarriers within a bandwidth, and each subcarrier uses an orthogonal method to send signals. In order to reduce signal propagation delay, a cyclic prefix (CP) is usually used as part of the signal for transmission. The CP contains a portion of the sample value of the OFDM symbol, and its function is to support the orthogonality between subcarriers in multipath channel scenarios. In current technologies, the time domain length of the CP is usually fixed, which cannot meet the needs of more application scenarios. Summary of the invention

[0003] The present application provides an information processing method, apparatus, network device and terminal to solve the problem that the current CP time domain length configuration cannot meet the requirements of more application scenarios.

[0004] The embodiment of the present application provides an information processing method, including:

[0005] The network device determines the time domain length of the first CP of the terminal signal transmission according to the transmission configuration related information of the terminal;

[0006] The network device sends indication information to the terminal, wherein the indication information is used to indicate the time domain length of the first CP.

[0007] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0008] The terminal type or capability of the terminal;

[0009] Mobile state information of the terminal;

[0010] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0011] A deployment scenario of the terminal;

[0012] synchronization requirements of the terminal;

[0013] Signal transmission time unit.

[0014] Optionally, the network device determines, according to the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission, including:

[0015] When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the network device determines that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determines that the time domain length of the first CP of the terminal signal transmission is greater than 0.

[0016] Optionally, the network device determines, according to the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission, including:

[0017] In a case where the transmission configuration information of the terminal includes the signal transmission time unit, the network device determines the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0018] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0019] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0020] Optionally, the signal transmission time unit includes at least one of the following:

[0021] Time unit used for scheduling data of different beams;

[0022] The time unit used for scheduling of different user data.

[0023] Optionally, the indication information is carried by a first message, and the first message includes at least one of the following:

[0024] System broadcast messages;

[0025] Radio Resource Control (RRC) messages;

[0026] Medium Access Control (MAC) message;

[0027] Downlink Control Information (DCI).

[0028] Optionally, the network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including:

[0029] The network device receives a second message sent by the terminal; the second message carries transmission configuration related information of the terminal and / or CP configuration request information of the terminal;

[0030] The network device determines, according to the second message and in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission.

[0031] Optionally, the second message includes at least one of the following:

[0032] RRC message;

[0033] MAC message;

[0034] Messages carried by the Physical Uplink Control Channel (PUCCH).

[0035] Optionally, the indication information is also used to indicate the number of symbols in a time slot.

[0036] Optionally, the network device determines, according to the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission, including:

[0037] The network device determines the time domain length of the first CP of the terminal signal transmission according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

[0038] Optionally, the information processing method further includes:

[0039] The network device performs an initial access process of the terminal according to the time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0040] The indication information is sent by the network device to the terminal during the initial access process, or is sent by the network device to the terminal after the initial access process.

[0041] The present application also provides an information processing method, including:

[0042] The terminal receives indication information sent by the network device; wherein the indication information is used to indicate the time domain length of the first CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal;

[0043] The terminal transmits a signal according to the time domain length of the first CP.

[0044] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0045] The terminal type or capability of the terminal;

[0046] Mobile state information of the terminal;

[0047] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0048] A deployment scenario of the terminal;

[0049] synchronization requirements of the terminal;

[0050] Signal transmission time unit.

[0051] Optionally, when the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or to indicate that the time domain length of the first CP is greater than 0.

[0052] Optionally, when the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0053] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0054] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0055] Optionally, the signal transmission time unit includes at least one of the following:

[0056] Time unit used for scheduling data of different beams;

[0057] The time unit used for scheduling of different user data.

[0058] Optionally, the indication information is carried by a first message, and the first message includes at least one of the following:

[0059] System messages;

[0060] RRC message;

[0061] MAC message;

[0062] DCI.

[0063] Optionally, before the terminal receives the indication information sent by the network device, the method further includes:

[0064] The terminal sends a second message to the network device; wherein the second message carries transmission configuration related information of the terminal and / or CP configuration request information of the terminal.

[0065] Optionally, the second message includes at least one of the following:

[0066] RRC message;

[0067] MAC message;

[0068] Message carried by PUCCH.

[0069] Optionally, the indication information is also used to indicate the number of symbols in a time slot;

[0070] and / or,

[0071] The time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

[0072] Optionally, the information processing method further includes:

[0073] The terminal performs an initial access process according to a time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0074] The indication information is received during the initial access process or after the initial access process.

[0075] The embodiment of the present application also provides an information processing device, including a memory, a transceiver, and a processor;

[0076] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0077] Determine, according to the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission;

[0078] Sending indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

[0079] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0080] The terminal type or capability of the terminal;

[0081] Mobile state information of the terminal;

[0082] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0083] A deployment scenario of the terminal;

[0084] synchronization requirements of the terminal;

[0085] Signal transmission time unit.

[0086] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0087] When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, determining that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determining that the time domain length of the first CP of the terminal signal transmission is greater than 0;

[0088] and / or,

[0089] In a case where the transmission configuration information of the terminal includes the signal transmission time unit, determining the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0090] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0091] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0092] Optionally, the signal transmission time unit includes at least one of the following:

[0093] Time unit used for scheduling data of different beams;

[0094] The time unit used for scheduling of different user data.

[0095] Optionally, the indication information is carried by a first message, and the first message includes at least one of the following:

[0096] System broadcast messages;

[0097] RRC message;

[0098] MAC message;

[0099] DCI.

[0100] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0101] receiving a second message sent by the terminal; the second message carrying transmission configuration related information of the terminal and / or CP configuration request information of the terminal;

[0102] The network device determines, according to the second message and in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission.

[0103] Optionally, the second message includes at least one of the following:

[0104] RRC message;

[0105] MAC message;

[0106] Message carried by PUCCH.

[0107] Optionally, the indication information is also used to indicate the number of symbols in a time slot.

[0108] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0109] The time domain length of the first CP for terminal signal transmission is determined according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

[0110] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0111] Executing an initial access process of the terminal according to a time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0112] The indication information is sent to the terminal during the initial access process, or is sent to the terminal after the initial access process.

[0113] The embodiment of the present application also provides a network device, including:

[0114] A first processing unit, configured to determine a time domain length of a first CP for terminal signal transmission according to the transmission configuration related information of the terminal;

[0115] A sending unit is used to send indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

[0116] The embodiment of the present application also provides an information processing device, including a memory, a transceiver, and a processor;

[0117] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0118] Receiving indication information sent by a network device; wherein the indication information is used to indicate the time domain length of the first CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal;

[0119] Signal transmission is performed according to the time domain length of the first CP.

[0120] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0121] The terminal type or capability of the terminal;

[0122] Mobile state information of the terminal;

[0123] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0124] A deployment scenario of the terminal;

[0125] synchronization requirements of the terminal;

[0126] Signal transmission time unit.

[0127] Optionally, when the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or indicates that the time domain length of the first CP is greater than 0;

[0128] and / or,

[0129] In the case where the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0130] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0131] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0132] Optionally, the signal transmission time unit includes at least one of the following:

[0133] Time unit used for scheduling data of different beams;

[0134] The time unit used for scheduling of different user data.

[0135] Optionally, the indication information is carried by a first message, and the first message includes at least one of the following:

[0136] System messages;

[0137] RRC message;

[0138] MAC message;

[0139] DCI.

[0140] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0141] Sending a second message to the network device; wherein the second message carries the transmission configuration related information of the terminal and / or the CP configuration request information of the terminal.

[0142] Optionally, the second message includes at least one of the following:

[0143] RRC message;

[0144] MAC message;

[0145] Message carried by PUCCH.

[0146] Optionally, the indication information is also used to indicate the number of symbols in a time slot;

[0147] and / or,

[0148] The time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

[0149] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0150] Performing an initial access process according to a time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0151] The indication information is received during the initial access process or after the initial access process.

[0152] An embodiment of the present application provides a terminal, including:

[0153] A receiving unit, configured to receive indication information sent by a network device; wherein the indication information is used to indicate the time domain length of the first CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal;

[0154] The first processing unit is configured to perform signal transmission according to the time domain length of the first CP.

[0155] An embodiment of the present application provides a processor-readable storage medium, which stores a computer program, and the computer program is used to cause the processor to execute the steps in the information processing method on the network device side as described above, or the computer program is used to cause the processor to execute the steps in the information processing method on the terminal side as described above.

[0156] The beneficial effects of the above technical solution of the present application are:

[0157] In an embodiment of the present application, the network device can flexibly configure the time domain length of the first CP for signal transmission for the terminal according to the transmission configuration-related information of the terminal. That is, the time domain length of the first CP for signal transmission configured by the network device for the terminal is no longer limited to the subcarrier spacing, thereby meeting the requirements of more application scenarios and solving the problem that the current CP time domain length configuration cannot meet the requirements of more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0158] Figure 1 A flowchart showing an information processing method on a network device side according to an embodiment of the present application;

[0159] Figure 2 A flowchart showing an information processing method on a terminal side according to an embodiment of the present application;

[0160] Figure 3 A block diagram showing an information processing device on a network device side according to an embodiment of the present application;

[0161] Figure 4 A block diagram showing a network device according to an embodiment of the present application;

[0162] Figure 5 A block diagram showing an information processing device on a terminal side according to an embodiment of the present application;

[0163] Figure 6 A block diagram showing a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0164] In order to make the technical problems, technical solutions and advantages to be solved by the application clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, for clarity and brevity, the description of known functions and structures has been omitted.

[0165] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0166] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0167] Additionally, the terms "system" and "network" are often used interchangeably herein.

[0168] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems and 6G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system, a 6G system, etc. These various systems include terminal equipment and network equipment. The system may also include core network parts, such as Evolved Packet System (EPS), 5G system (5GS), 6G system, etc.

[0169] 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 multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0170] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0171] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0172] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0173] The following is an introduction to the relevant technologies involved in this application:

[0174] In the design of 4G system, two CP configuration modes are defined: normal CP and extended CP, which are applicable to different scenarios. The time domain length of normal CP is shorter, which is applicable to the more common urban and rural cellular networks; the time domain length of extended CP is longer, which is applicable to the scenarios with complex signal transmission environment and long multipath delay, such as the transmission environment in mountainous areas.

[0175] In the design of the 5G system, the CP configuration of the 4G system is basically inherited, but the 5G system introduces more subcarrier parameter configurations. For example, the subcarrier spacing in the 5G system ranges from 15kHz to 240kHz, and different subcarrier spacings have corresponding CP time domain lengths.

[0176] The CP time domain length of the 4G system and the 5G system has a strict correspondence with the subcarrier spacing, and there are only two modes: normal CP and extended CP. That is, the CP time domain length of the OFDM symbol is determined according to the subcarrier spacing configuration information, and its CP time domain length is limited by the subcarrier spacing configuration information (for example, when the subcarrier spacing is larger, the corresponding CP time domain length will be smaller), which will not meet the needs of more application scenarios. For example: in satellite communications, the multipath propagation delay is small, and the required CP time domain length can be shorter, but a smaller subcarrier spacing may be used; some scenarios require a larger subcarrier spacing to reduce the impact of frequency deviation, but due to the large coverage radius and the influence of time synchronization errors, a longer CP time domain length is expected. This CP time domain length determined based on the subcarrier spacing configuration information has great limitations in applications in different scenarios, resulting in suboptimal resource utilization and performance.

[0177] The embodiments of the present application provide an information processing method, apparatus, network device and terminal to solve the problem that the current CP time domain length configuration cannot meet the needs of more application scenarios. Among them, the method and the apparatus (or network device or terminal) are based on the same application concept. Since the principles of solving the problem by the method and the apparatus (or network device or terminal) are similar, the implementation of the method and the apparatus (or network device or terminal) can refer to each other, and the repeated parts will not be repeated.

[0178] like Figure 1 As shown, an embodiment of the present application provides an information processing method, comprising the following steps:

[0179] Step 11: The network device determines the time domain length of the first cyclic prefix CP for terminal signal transmission according to the transmission configuration related information of the terminal.

[0180] Optionally, the network device may determine the first CP time domain length corresponding to the transmission configuration related information of the terminal according to a pre-set mapping relationship between different transmission configuration related information and the time domain length of the CP. For example, the pre-set mapping relationship between different transmission configuration related information and the time domain length of the CP may be configured by the network device or defined by a protocol, etc., and the embodiments of the present application are not limited thereto.

[0181] For example: the network device can obtain the transmission configuration related information of the terminal based on its own capabilities, or can also receive the transmission configuration related information of the terminal reported by the terminal, etc., so that it can configure or update the first CP time domain length of the configuration signal transmission for the terminal according to the transmission configuration related information of the terminal. The embodiments of the present application are not limited to this.

[0182] Optionally, terminal signal transmission includes but is not limited to at least one of the following: the terminal sends a signal to a network device, the terminal receives a signal sent by a network device, the terminal sends a signal to another terminal via a direct link, the terminal receives a signal sent by another terminal via a direct link, the terminal sends a perception signal to perceive environmental information, the terminal receives a perception signal to perform perception processing, etc. The embodiments of the present application are not limited to this.

[0183] Step 12: The network device sends indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

[0184] Optionally, the indication information may indicate the time domain length of the first CP in an explicit indication manner, such as the first indication field in the indication information is used to indicate the time domain length of the first CP. Alternatively, the indication information may also indicate the time domain length of the first CP in an implicit indication manner, such as the first indication field in the indication information is used to indicate the CP type of the first CP, and the terminal may learn the time domain length of the first CP based on the CP type of the first CP. Alternatively, the indication information is used to indicate the CP type and time domain length of the first CP, such as the indication information may include a first indication field and a second indication field, the first indication field is used to indicate the CP type of the first CP, and the second indication field is used to indicate the time domain length of the first CP, wherein the first indication field and the second indication field may be carried in the same signaling or in different signaling, and the embodiments of the present application are not limited thereto.

[0185] In this embodiment, the network device can flexibly configure the time domain length of the first CP for signal transmission for the terminal according to the transmission configuration-related information of the terminal. That is, the time domain length of the first CP for signal transmission configured by the network device for the terminal is no longer limited to the subcarrier spacing, thereby meeting the requirements of more application scenarios and facilitating the realization of optimal resource utilization and performance, thereby solving the problem that the current CP time domain length configuration cannot meet the requirements of more application scenarios.

[0186] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0187] The terminal type or capability of the terminal; for example: the terminal type or capability includes but is not limited to at least one of the following: the frequency band, bandwidth, power, number of antennas, duplex mode, etc. supported by the terminal, and the embodiments of the present application are not limited to this. For example, the network device pre-configures or pre-defines by the protocol: the correspondence between different terminal types or capabilities and the CP time domain length. The network device can flexibly configure the CP time domain length of signal transmission for different terminals based on the terminal type or capability of different terminals.

[0188] The mobile state information of the terminal; for example: the mobile state information includes but is not limited to at least one of the following: whether the terminal is moving, the moving speed of the terminal (such as the absolute moving speed of the terminal, or the moving speed of the terminal relative to the network device, etc.), the moving trajectory of the terminal, etc., and the embodiments of the present application are not limited to this. For example, the network device pre-configures or pre-defines by the protocol: the correspondence between different mobile state information and CP time domain length, the network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the mobile state information of different terminals, or the mobile state information of the same terminal at different times, etc.

[0189] The signal transmission of the terminal is uplink transmission or downlink transmission; for example, the network device pre-configures or pre-defines by the protocol: uplink transmission and downlink transmission correspond to different CP time domain lengths to improve resource utilization efficiency. For example, the network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the uplink transmission or downlink transmission of the terminal.

[0190] The deployment scenario of the terminal; for example: the deployment scenario includes but is not limited to at least one of the following: indoor scenario, urban scenario, mountain scenario, satellite channel scenario, etc., and the embodiments of the present application are not limited thereto. For example, the network device is pre-configured or pre-defined by the protocol: the correspondence between different deployment scenarios and CP time domain lengths. The network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the deployment scenarios of different terminals, or the deployment scenarios of the same terminal at different times, etc.

[0191] The synchronization requirements of the terminal; for example: the synchronization requirements include but are not limited to at least one of the following: the requirements of the tight synchronization mode (for example, the terminal and the network device need to maintain precise synchronization), the requirements of the loose synchronization mode (for example, the synchronization accuracy of the terminal and the network device is allowed to have a certain error), etc., and the embodiments of the present application are not limited to this. For example, the network device is pre-configured or pre-defined by the protocol: the correspondence between different synchronization requirements and the CP time domain length. The network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the synchronization requirements of different terminals, or the synchronization requirements of the same terminal at different times, etc.

[0192] Signal transmission time unit; for example: the signal transmission time unit includes but is not limited to at least one of the following: a time unit for scheduling different beam data, a time unit for scheduling different user data, etc. It should be noted that the signal transmission time unit here can be a time unit for scheduling different beam data, or a time unit for scheduling different user data. For example, within the time unit, it can serve a user terminal in a beam direction, or serve a separate user terminal, etc. The embodiments of the present application are not limited to this. For example, the network device preconfigures or predefines by the protocol: the correspondence between one or more symbols in different time units and the CP time domain length. The network device can flexibly configure the CP time domain length of signal transmission for the terminal based on different time units (such as a time unit for beam data scheduling and a time unit for user data scheduling, or different time units for beam data scheduling, or different time units for user data scheduling, etc.).

[0193] Optionally, the network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including:

[0194] When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the network device determines that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determines that the time domain length of the first CP of the terminal signal transmission is greater than 0.

[0195] For example: the network device is pre-configured or agreed by the protocol: during downlink transmission, the time domain length of the CP can be 0 or greater than 0. In this way, the network device can configure the time domain length of the first CP for the signal transmission of the terminal to be 0 or greater than 0 when the terminal is transmitting in the downlink, considering that the multipath delay of the downlink transmission is small. That is, in the embodiment of the present application, it is possible to support the terminal to use a CP with a time domain length of 0 during downlink transmission, thereby improving the system capacity.

[0196] It should be noted here that downlink transmission is single-point to multi-point, and uplink transmission is multi-point to single-point. Therefore, there is no synchronization error between user terminals in downlink transmission. It is mainly affected by multipath. In the scenario dominated by direct path, the time domain length of CP can be shortened or even 0. Therefore, the time domain length of CP for downlink transmission and the time domain length of CP for uplink transmission can be configured independently.

[0197] Optionally, the network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including:

[0198] In a case where the transmission configuration information of the terminal includes the signal transmission time unit, the network device determines the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0199] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0200] For example: the network device can flexibly configure the time domain length of the first CP of the first symbol and / or the time domain length of the CP of the second symbol in the signal transmission time unit based on a configurable signal transmission time unit (such as 1ms or 1 time slot), and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0201] For example, the network device can flexibly configure the time domain lengths of the first symbol and the second symbol in the signal transmission time unit respectively. Considering that the first symbol in a signal transmission time unit needs to bear the function of synchronization correction, the first symbol in a signal transmission time unit can be set to use a longer CP time domain length. For example: the network device can configure the time domain length of the first CP of the first symbol to be the time domain length of the extended CP, and the time domain length of the first CP of the second symbol to be the time domain length of the regular CP. Alternatively, the network device preconfigures or the protocol predefines: the time domain length of the first CP of the first symbol in the signal transmission time unit (for example, using the time domain length of the extended CP), and supports the network device to flexibly configure the time domain length of the first CP of the second symbol in the signal transmission time unit (at this time, the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol). Alternatively, the network device preconfigures or the protocol predefines: the time domain length of the first CP of the second symbol in the signal transmission time unit (for example, the time domain length of the conventional CP is adopted), and the network device is supported to flexibly configure the time domain length of the first CP of the first symbol in the signal transmission time unit (at this time, the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol), etc. The embodiments of the present application are not limited to this. It should be pointed out that the first symbol can adopt a longer CP time domain length, for example, the first symbol can adopt an extended CP, or adopt a conventional CP plus a CP extension unit, or be configured as a complete symbol and other possible forms. The second symbol and subsequent symbols may be shorter CPs, or even 0, etc.

[0202] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0203] Taking the beam scanning scenario as an example, that is, the time unit is a time unit used for scheduling different beam data, the network device configures the first symbol in the time unit (i.e., the first symbol) for signal synchronization tracking. Since the first symbol used for signal synchronization tracking has a longer CP time domain length, it can assist the terminal in correcting the synchronization error.

[0204] Taking user data scheduling as an example, that is, the time unit is a time unit used for scheduling different user data, the network device configures the first symbol in the time unit (i.e., the first symbol) for signal synchronization tracking. Since the first symbol used for signal synchronization tracking has a longer CP time domain length, it can assist the terminal in synchronization compensation and correction.

[0205] Optionally, the indication information is carried by a first message. That is, the network device sends the indication information to the terminal, including:

[0206] The network device sends a first message to the terminal; wherein the first message carries the indication information.

[0207] Optionally, the first message includes at least one of the following:

[0208] System broadcast messages;

[0209] RRC message;

[0210] MAC message;

[0211] DCI.

[0212] The indication information is used to notify the terminal to obtain the currently used CP type or CP time domain length. At the moment of receiving the indication information, the terminal still uses the previous CP time domain length until the indication information takes effect. The new CP type or CP time domain length can be used. Optionally, the network device can also agree or indicate the effective time interval of the new CP type or CP time domain length of the terminal. It should be pointed out that the network device can configure different CP types or CP time domain lengths for different terminals, and can dynamically modify the CP type or CP time domain length of the terminal.

[0213] Optionally, the network device determines, according to the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission, including:

[0214] The network device receives a second message sent by the terminal; the second message carries transmission configuration related information of the terminal and / or CP configuration request information of the terminal;

[0215] The network device determines, according to the second message and in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission.

[0216] In this embodiment, the terminal is supported to request the network device to flexibly configure the first CP time domain length of signal transmission for it. In this way, the terminal can request the network device to flexibly configure the first CP time domain length of signal transmission for it based on different transmission configuration related information.

[0217] For example: when the second message sent by the terminal to the network device carries the CP configuration request information of the terminal, the network device can, based on the CP configuration request information of the terminal, when it is able to obtain information related to the transmission configuration of the terminal (for example, the network device can obtain information that the current transmission is downlink, and has obtained the terminal type or capability in other processes, etc.), the network device can configure the first CP time domain length for signal transmission for the terminal according to the terminal request. In addition, the CP configuration request information may also include information related to the transmission configuration of the terminal, and may also include CP time domain length information, etc. The network device obtains information related to the transmission configuration of the terminal, and determines the first CP time domain length of the terminal signal transmission based on the transmission configuration related information of the terminal, or directly configures the corresponding CP time domain length for the terminal according to the CP time domain length information of the terminal.

[0218] Alternatively, when the second message sent by the terminal to the network device carries information related to the transmission configuration of the terminal, the network device can determine, based on the implicit indication of the transmission configuration related information of the terminal, the first CP time domain length for which the terminal requests the network device to configure signal transmission for it according to the transmission configuration related information of the terminal.

[0219] Alternatively, when the second message sent by the terminal to the network device carries the terminal's transmission configuration-related information and the terminal's CP configuration request information, the network device can determine, based on the terminal's CP configuration request information, the first CP time domain length of the terminal signal transmission corresponding to the terminal's transmission configuration-related information, etc. The embodiments of the present application are not limited to this.

[0220] Optionally, the second message includes at least one of the following:

[0221] RRC message;

[0222] MAC message;

[0223] Message carried by PUCCH.

[0224] Optionally, on the basis that the network device supports flexible configuration of the first CP time domain length for signal transmission for the terminal, the CP time domain length and the number of symbols in a time slot can be one-to-one corresponding, that is, when the network device configures the first CP time domain length for signal transmission for the terminal, the network device and the terminal can determine the number of symbols in a time slot based on the first CP time domain length.

[0225] Alternatively, on the basis that the network device supports flexible configuration of the first CP time domain length for signal transmission for the terminal, the CP time domain length may also correspond to multiple numbers of symbols in a time slot, that is, one CP time domain length corresponds to a set of symbol numbers, and the set of symbol numbers includes multiple numbers of symbols (for example, one time slot includes 14 symbols, or one time slot includes 12 symbols, or one time slot includes 15 symbols, etc., the embodiments of the present application are not limited to this). Optionally, when the indication information sent by the network device to the terminal indicates the first CP time domain length for terminal signal transmission, the indication information may also be used to indicate the number of symbols in a time slot. For example: the number of symbols in a time slot indicated by the indication information may be selected from the set of symbol numbers, and different numbers of symbols may be configured for different subframes, etc., the embodiments of the present application are not limited to this.

[0226] It should be noted that in the embodiment of the present application, the length of the time slot can be expanded as the size of the symbol changes. For example, if the indication information indicates that a time slot includes 14 symbols, the corresponding time slot length is 1ms; if the indication information indicates that a time slot includes 28 symbols, the corresponding time slot length is the length of 28 symbols. However, no matter how long the different time slots are, the CP time domain length of the first symbol will be longer than the CP time domain lengths of other symbols in the time slot.

[0227] Optionally, the network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including:

[0228] The network device determines the time domain length of the first CP of the terminal signal transmission according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

[0229] For example: the network device is preconfigured or predefined by the protocol: the relevant information of different transmission configurations and different subcarrier spacing information are combined, and the corresponding relationship with the CP time domain length. In this way, the network device can determine the time domain length of the first CP of the terminal signal transmission based on the relevant information of the transmission configuration of the terminal and the subcarrier spacing information. Alternatively, in the case where the indication information sent by the network device indicates the CP time domain length determined by the network device according to the relevant information of the transmission configuration of the terminal, the terminal can determine the first CP time domain length of the terminal signal transmission based on the CP time domain length indicated by the indication information and the subcarrier spacing information according to the network device configuration or protocol definition, etc. The embodiments of the present application are not limited to this.

[0230] Optionally, the information processing method further includes:

[0231] The network device performs an initial access process of the terminal according to the time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0232] The indication information is sent by the network device to the terminal during the initial access process, or is sent by the network device to the terminal after the initial access process.

[0233] For example, the preset second CP time domain length may be a CP time domain length for initial access of the terminal configured by the network device or defined by the protocol. Since the terminal does not know which CP type or CP time domain length should be used when initially accessing, the terminal may use a certain CP type or CP time domain length to search for the initial signal based on the agreement of the protocol.

[0234] For example, the process of the network device sending indication information to the terminal during the initial access process may be: the terminal searches for the synchronization signal based on the pre-set time domain length of the second CP and then obtains the system message; after obtaining the system message, the terminal obtains the first CP time domain length of the signal transmission indicated by the network device based on the indication of the system message, etc. The embodiments of the present application are not limited to this.

[0235] For example, the process in which the network device sends indication information to the terminal after the initial access process is completed may be: the terminal searches for the synchronization signal based on the pre-set time domain length of the second CP and then performs the initial access process; after the terminal completes the initial access process, it can obtain an RRC-specific signaling message, and based on the indication of the signaling message, obtain the first CP time domain length of the signal transmission indicated by the network device, etc. The embodiments of the present application are not limited to this.

[0236] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be 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 interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein 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 device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0237] like Figure 2 As shown, the embodiment of the present application also provides an information processing method, comprising the following steps:

[0238] Step 21: The terminal receives indication information sent by the network device; wherein the indication information is used to indicate the time domain length of the first CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal.

[0239] Optionally, the time domain length of the first CP may be a first CP time domain length corresponding to the transmission configuration related information of the terminal, which may be determined by the network device according to a pre-set mapping relationship between different transmission configuration related information and the time domain length of the CP. For example, the pre-set mapping relationship between different transmission configuration related information and the time domain length of the CP may be configured by a network device or defined by a protocol, etc., and the embodiments of the present application are not limited thereto.

[0240] For example: the network device can obtain the transmission configuration related information of the terminal based on its own capabilities, or the terminal can also report its transmission configuration related information to the network device, etc., so that the network device can configure or update the first CP time domain length of the configuration signal transmission for the terminal according to the transmission configuration related information of the terminal, etc. The embodiments of the present application are not limited to this.

[0241] Optionally, the indication information may indicate the time domain length of the first CP in an explicit indication manner, such as the first indication field in the indication information is used to indicate the time domain length of the first CP. Alternatively, the indication information may also indicate the time domain length of the first CP in an implicit indication manner, such as the first indication field in the indication information is used to indicate the CP type of the first CP, and the terminal may learn the time domain length of the first CP based on the CP type of the first CP. Alternatively, the indication information is used to indicate the CP type and time domain length of the first CP, such as the indication information may include a first indication field and a second indication field, the first indication field is used to indicate the CP type of the first CP, and the second indication field is used to indicate the time domain length of the first CP, wherein the first indication field and the second indication field may be carried in the same signaling or in different signaling, and the embodiments of the present application are not limited thereto.

[0242] Step 22: The terminal transmits a signal according to the time domain length of the first CP.

[0243] Optionally, terminal signal transmission includes but is not limited to at least one of the following: the terminal sends a signal to a network device, the terminal receives a signal sent by a network device, the terminal sends a signal to another terminal via a direct link, the terminal receives a signal sent by another terminal via a direct link, the terminal sends a perception signal to perceive environmental information, the terminal receives a perception signal to perform perception processing, etc. The embodiments of the present application are not limited to this.

[0244] In this embodiment, the network device can flexibly configure the time domain length of the first CP for signal transmission for the terminal according to the transmission configuration-related information of the terminal. That is, the time domain length of the first CP for signal transmission configured by the network device for the terminal is no longer limited to the subcarrier spacing, thereby meeting the requirements of more application scenarios. In addition, the terminal performs signal transmission based on the flexibly configured first CP time domain length, which is also conducive to achieving optimal resource utilization and performance, and solves the problem that the current CP time domain length configuration cannot meet the requirements of more application scenarios.

[0245] Optionally, the transmission configuration related information of the terminal is used to indicate at least one of the following:

[0246] The terminal type or capability of the terminal; for example: the terminal type or capability includes but is not limited to at least one of the following: the frequency band and bandwidth supported by the terminal, etc., and the embodiments of the present application are not limited to this. For example, the network device pre-configures or pre-defines by the protocol: the correspondence between different terminal types or capabilities and the CP time domain length. The network device can flexibly configure the CP time domain length of signal transmission for different terminals based on the terminal type or capability of different terminals.

[0247] The mobile state information of the terminal; for example: the mobile state information includes but is not limited to at least one of the following: whether the terminal is moving, the moving speed of the terminal (such as the absolute moving speed of the terminal, or the moving speed of the terminal relative to the network device, etc.), the moving trajectory of the terminal, etc., and the embodiments of the present application are not limited to this. For example, the network device pre-configures or pre-defines by the protocol: the correspondence between different mobile state information and CP time domain length, the network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the mobile state information of different terminals, or the mobile state information of the same terminal at different times, etc.

[0248] The signal transmission of the terminal is uplink transmission or downlink transmission; for example, the network device pre-configures or pre-defines by the protocol: uplink transmission and downlink transmission correspond to different CP time domain lengths to improve resource utilization efficiency. For example, the network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the uplink transmission or downlink transmission of the terminal.

[0249] The deployment scenario of the terminal; for example: the deployment scenario includes but is not limited to at least one of the following: indoor scenario, urban scenario, mountain scenario, satellite channel scenario, etc., and the embodiments of the present application are not limited thereto. For example, the network device is pre-configured or pre-defined by the protocol: the correspondence between different deployment scenarios and CP time domain lengths. The network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the deployment scenarios of different terminals, or the deployment scenarios of the same terminal at different times, etc.

[0250] The synchronization requirements of the terminal; for example: the synchronization requirements include but are not limited to at least one of the following: tight synchronization mode (for example, the terminal and the network device maintain precise synchronization), loose synchronization mode (for example, there is a certain error in the synchronization accuracy of the terminal and the network device), etc., and the embodiments of the present application are not limited to this. For example, the network device is pre-configured or pre-defined by the protocol: the correspondence between different synchronization requirements and the CP time domain length. The network device can flexibly configure the CP time domain length of signal transmission for the terminal based on the synchronization requirements of different terminals, or the synchronization requirements of the same terminal at different times, etc.

[0251] Signal transmission time unit; for example: the signal transmission time unit includes but is not limited to at least one of the following: a time unit for different beam data scheduling, a time unit for different user data scheduling, etc. For example, within the time unit, it can serve a user terminal in a beam direction, or serve a separate user terminal, etc. The embodiments of the present application are not limited to this. For example, the network device preconfigures or predefines by the protocol: the correspondence between one or more symbols in different time units and the CP time domain length. The network device can flexibly configure the CP time domain length of signal transmission for the terminal based on different time units (such as time units for beam data scheduling and time units for user data scheduling, or different time units for beam data scheduling, or different time units for user data scheduling, etc.).

[0252] Optionally, when the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or to indicate that the time domain length of the first CP is greater than 0.

[0253] For example: the network device is pre-configured or agreed by the protocol: during downlink transmission, the time domain length of the CP can be 0 or greater than 0. In this way, the network device can configure the time domain length of the first CP for the signal transmission of the terminal to be 0 or greater than 0 when the terminal is transmitting in the downlink, considering that the multipath delay of the downlink transmission is small. That is, in the embodiment of the present application, it is possible to support the terminal to use a CP with a time domain length of 0 during downlink transmission, thereby improving the system capacity.

[0254] It should be noted here that downlink transmission is single-point to multi-point, and uplink transmission is multi-point to single-point. Therefore, there is no synchronization error between user terminals in downlink transmission. It is mainly affected by multipath. In the scenario dominated by direct path, the time domain length of CP can be shortened or even 0. Therefore, the time domain length of CP for downlink transmission and the time domain length of CP for uplink transmission can be configured independently.

[0255] Optionally, when the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0256] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0257] For example: the network device can flexibly configure the time domain length of the first CP of the first symbol and / or the time domain length of the CP of the second symbol in the signal transmission time unit based on a configurable signal transmission time unit (such as 1ms or 1 time slot), and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0258] For example, the network device can flexibly configure the time domain lengths of the first symbol and the second symbol in the signal transmission time unit respectively. Considering that the first symbol in a signal transmission time unit needs to bear the function of synchronization correction, the first symbol in a signal transmission time unit can be set to use a longer CP time domain length. For example: the network device can configure the time domain length of the first CP of the first symbol to be the time domain length of the extended CP, and the time domain length of the first CP of the second symbol to be the time domain length of the regular CP. Alternatively, the network device preconfigures or the protocol predefines: the time domain length of the first CP of the first symbol in the signal transmission time unit (for example, using the time domain length of the extended CP), and supports the network device to flexibly configure the time domain length of the first CP of the second symbol in the signal transmission time unit (at this time, the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol). Alternatively, the network device preconfigures or the protocol predefines: the time domain length of the first CP of the second symbol in the signal transmission time unit (for example, the time domain length of a conventional CP is used), and supports the network device to flexibly configure the time domain length of the first CP of the first symbol in the signal transmission time unit (in this case, the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol), etc. The embodiments of the present application are not limited to this.

[0259] It should be pointed out that the first symbol can use a longer CP time domain length. For example, the first symbol can use an extended CP, or a regular CP plus a CP extension unit, or be configured as a complete symbol and other possible forms. The second symbol and subsequent symbols may have a shorter CP, or even 0.

[0260] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0261] Taking the beam scanning scenario as an example, that is, the time unit is a time unit used for scheduling different beam data, the network device configures the first symbol in the time unit (that is, the first symbol) for signal synchronization tracking. Since the first symbol used for signal synchronization tracking has a longer CP time domain length, the terminal can correct the synchronization error.

[0262] Taking user data scheduling as an example, that is, the time unit is a time unit used for scheduling different user data, the network device configures the first symbol in the time unit (i.e., the first symbol) for signal synchronization tracking. Since the first symbol used for signal synchronization tracking has a longer CP time domain length, the terminal can perform synchronization compensation and correction.

[0263] Optionally, the indication information is carried by a first message. That is, the terminal receives the indication information sent by the network device, including:

[0264] The terminal receives a first message sent by the network device; wherein the first message carries the indication information.

[0265] Optionally, the first message includes at least one of the following:

[0266] System messages;

[0267] RRC message;

[0268] MAC message;

[0269] DCI.

[0270] The indication information is used to notify the terminal to obtain the currently used CP type or CP time domain length. At the moment of receiving the indication information, the terminal still uses the previous CP time domain length until the indication information takes effect. The new CP type or CP time domain length can be used. Optionally, the network device can also agree or indicate the effective time interval of the new CP type or CP time domain length of the terminal. It should be pointed out that the network device can configure different CP types or CP time domain lengths for different terminals, and can dynamically modify the CP type or CP time domain length of the terminal.

[0271] Optionally, before the terminal receives the indication information sent by the network device, the method further includes:

[0272] The terminal sends a second message to the network device; wherein the second message carries transmission configuration related information of the terminal and / or CP configuration request information of the terminal.

[0273] Optionally, the indication information is sent by the network device according to the second message.

[0274] In this embodiment, the terminal is supported to request the network device to flexibly configure the first CP time domain length of signal transmission for it. In this way, the terminal can request the network device to flexibly configure the first CP time domain length of signal transmission for it based on different transmission configuration related information.

[0275] For example: when the second message sent by the terminal to the network device carries the CP configuration request information of the terminal, the network device can, based on the CP configuration request information of the terminal, when it is able to obtain information related to the transmission configuration of the terminal (for example, the network device can obtain information that the current transmission is downlink, and has obtained the terminal type or capability in other processes, etc.), the network device can configure the first CP time domain length for signal transmission for the terminal according to the terminal request. In addition, the CP configuration request information may also include information related to the transmission configuration of the terminal, and may also include CP time domain length information, etc. The network device obtains information related to the transmission configuration of the terminal, and determines the first CP time domain length of the terminal signal transmission based on the transmission configuration related information of the terminal, or directly configures the corresponding CP time domain length for the terminal according to the CP time domain length information of the terminal.

[0276] Alternatively, when the second message sent by the terminal to the network device carries information related to the transmission configuration of the terminal, the network device can determine, based on the implicit indication of the transmission configuration related information of the terminal, the first CP time domain length for which the terminal requests the network device to configure signal transmission for it according to the transmission configuration related information of the terminal.

[0277] Alternatively, when the second message sent by the terminal to the network device carries the terminal's transmission configuration-related information and the terminal's CP configuration request information, the network device can determine, based on the terminal's CP configuration request information, the first CP time domain length of the terminal signal transmission corresponding to the terminal's transmission configuration-related information, etc. The embodiments of the present application are not limited to this.

[0278] Optionally, the second message includes at least one of the following:

[0279] RRC message;

[0280] MAC message;

[0281] Message carried by PUCCH.

[0282] Optionally, on the basis that the network device supports flexible configuration of the first CP time domain length for signal transmission for the terminal, the CP time domain length and the number of symbols in a time slot can be one-to-one corresponding, that is, when the network device configures the first CP time domain length for signal transmission for the terminal, the network device and the terminal can determine the number of symbols in a time slot based on the first CP time domain length.

[0283] Alternatively, on the basis that the network device supports flexible configuration of the first CP time domain length for signal transmission for the terminal, the CP time domain length may also correspond to multiple numbers of symbols in a time slot, that is, one CP time domain length corresponds to a set of symbol numbers, and the set of symbol numbers includes multiple numbers of symbols (for example, one time slot includes 14 symbols, or one time slot includes 12 symbols, or one time slot includes 15 symbols, etc., the embodiments of the present application are not limited to this). Optionally, when the indication information sent by the network device to the terminal indicates the first CP time domain length for terminal signal transmission, the indication information may also be used to indicate the number of symbols in a time slot. For example: the number of symbols in a time slot indicated by the indication information may be selected from the set of symbol numbers, and different numbers of symbols may be configured for different subframes, etc., the embodiments of the present application are not limited to this.

[0284] It should be noted that in the embodiment of the present application, the length of the time slot can be expanded as the size of the symbol changes. For example, if the indication information indicates that a time slot includes 14 symbols, the corresponding time slot length is 1ms; if the indication information indicates that a time slot includes 28 symbols, the corresponding time slot length is the length of 28 symbols. However, no matter how long the different time slots are, the CP time domain length of the first symbol will be longer than the CP time domain lengths of other symbols in the time slot.

[0285] Optionally, the time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

[0286] For example: the network device is preconfigured or predefined by the protocol: the relevant information of different transmission configurations and different subcarrier spacing information are combined, and the corresponding relationship with the CP time domain length. In this way, the network device can determine the time domain length of the first CP of the terminal signal transmission based on the relevant information of the transmission configuration of the terminal and the subcarrier spacing information. Alternatively, in the case where the indication information sent by the network device indicates the CP time domain length determined by the network device according to the relevant information of the transmission configuration of the terminal, the terminal can determine the first CP time domain length of the terminal signal transmission based on the CP time domain length indicated by the indication information and the subcarrier spacing information according to the network device configuration or protocol definition, etc. The embodiments of the present application are not limited to this.

[0287] Optionally, the information processing method further includes:

[0288] The terminal performs an initial access process according to a time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0289] The indication information is received during the initial access process or after the initial access process.

[0290] For example, the preset second CP time domain length may be a CP time domain length for initial access of the terminal configured by the network device or defined by the protocol. Since the terminal does not know which CP type or CP time domain length should be used when initially accessing, the terminal may use a certain CP type or CP time domain length to search for the initial signal based on the agreement of the protocol.

[0291] For example, the process of the network device sending indication information to the terminal during the initial access process may be: the terminal searches for the synchronization signal based on the pre-set time domain length of the second CP and then obtains the system message; after obtaining the system message, the terminal obtains the first CP time domain length of the signal transmission indicated by the network device based on the indication of the system message, etc. The embodiments of the present application are not limited to this.

[0292] For example, the process in which the network device sends indication information to the terminal after the initial access process is completed may be: the terminal searches for the synchronization signal based on the pre-set time domain length of the second CP and then performs the initial access process; after the terminal completes the initial access process, it can obtain an RRC-specific signaling message, and based on the indication of the signaling message, obtain the first CP time domain length of the signal transmission indicated by the network device, etc. The embodiments of the present application are not limited to this.

[0293] The terminal involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0294] The information processing method of the present application is described below in conjunction with specific embodiments:

[0295] Embodiment 1: Based on different transmission configuration parameters, the network device configures different CP time domain lengths for the terminal.

[0296] In order to increase the adaptability of different scenarios, network devices (such as base stations) need to support more flexible CP time domain length configuration. For example, different CP time domain lengths are defined for different deployment scenarios. As shown in Table 1, a specific CP configuration parameter example is given.

[0297] Table 1

[0298] Scenario CP time domain length indoor 0.5us Urban area 1.0us Mountain area 2.0us satellite 0.5us

[0299] Different CP time domain lengths can be configured for different deployment scenarios. Different CP time domain lengths can be configured for different multipath delays. For example, for scenarios dominated by LOS paths, a shorter CP time domain length can be configured; for scenarios with higher frequency bands, a shorter CP time domain length can be configured due to the greater attenuation of reflected signals.

[0300] Another example: define different CP time domain lengths for different synchronization requirements. For example, synchronization requirements include but are not limited to the following two:

[0301] Tight synchronization mode: the terminal and the network maintain precise synchronization. In this case, the time domain length of the CP can be configured to be shorter.

[0302] Loose synchronization mode means that there is a certain error in the synchronization accuracy between the terminal and the network (for example, due to the rapid movement of the terminal or the base station or a certain gap in the synchronization capability of the terminal itself). In this case, the time domain length of the CP can be configured to be longer.

[0303] As shown in Table 2, another specific example of CP configuration parameters is given.

[0304] Table 2

[0305]

[0306] Another example: in a beam scanning scenario, each time the beam direction switches, the terminal needs to reacquire the downlink signal of the beam and then correct the synchronization error. At this time, the first symbol in the dwell time of each beam direction or wave position can be configured with a longer CP time domain length for terminal synchronization capture and tracking. Starting from the second symbol (i.e., the symbol after the first symbol), a shorter CP time domain length can be used. In an embodiment of the present application, different CP time domain lengths can be configured for different beam scanning methods. For example, this solution can meet the needs of beam hopping scenarios in satellite communications.

[0307] As shown in Table 3, another specific example of CP configuration parameters is given.

[0308] Table 3

[0309] Index of a symbol within a time unit (Index) CP time domain length Index = 0 (i.e. the first symbol) 2us Index>0 (i.e. the symbol after the first symbol) 0.5us

[0310] In addition, for scenarios where users are not scheduled to send or receive data for a long time, there is also synchronization deviation when the network device schedules the first symbol of the user. Based on the CP configuration of the above time unit, when sending the first symbol, a longer CP time domain length can be used to assist the user in synchronization compensation and correction, and then receive subsequent data symbols, and subsequent data symbols can use a shorter CP time domain length.

[0311] In the above two scenarios, the beam switching and data scheduling of the base station can be pre-configured with a time unit, such as 1ms or 1 time slot. The first symbol uses a longer CP time domain length, and subsequent data symbols can use a shorter CP time domain length.

[0312] Implementation 2: CP configuration of network devices and terminal access process.

[0313] When a terminal initially accesses, it is considered that the terminal cannot know in advance the CP time domain length configured by the network device based on the terminal's transmission configuration related information, which makes signal detection difficult. In order to support flexible CP configuration, the CP time domain length can be notified to the terminal through the default configuration or in the system message for initial access.

[0314] The default configuration here refers to the clear definition in the protocol specification that the terminal uses an agreed CP time domain length when receiving a synchronization signal or a system message. The CP time domain length notified to the terminal in the system message mainly refers to the network device notifying the terminal through the master information block (Master Information Block, MIB) or the system information block (System Information Block, SIB) to use a specific CP time domain length to perform initial access. During initial access, the synchronization signal block (Synchronization Signal Block, SSB) and other system messages can use different CP time domain lengths, or they can also use the same CP time domain length, etc. The embodiments of the present application are not limited to this.

[0315] During initial access, the terminal receives signals in the following process:

[0316] The terminal searches for the synchronization signal based on the default or pre-agreed CP time domain length, and then obtains the system message;

[0317] After acquiring the system message, the terminal learns the CP time domain length of the control channel and the data channel based on the indication of the system message. After the terminal accesses, the CP time domain length can also be configured for each terminal individually using RRC signaling.

[0318] The system message may include: broadcast message and other system messages, etc., which may be carried in a physical broadcast channel (PBCH) or SIB, etc., but the present application is not limited thereto. As shown in Table 4, an example of a system message bit indicating the CP time domain length is given.

[0319] Table 4

[0320] Bit Indication CP time domain length 00 0.5us 01 1.0us 10 2.0us 11 4.0us

[0321] Optionally, the CP time domain length may be further jointly determined in combination with the subcarrier spacing information, that is, the CP time domain length is jointly indicated by the subcarrier spacing information and signaling, as shown in Table 5.

[0322] Table 5

[0323]

[0324] Optionally, in actual signaling indication, the CP type indicated in high-level signaling (such as RRC signaling) or physical layer signaling (such as DCI) can also be used. The CP time domain length of each CP type is defined in the physical layer, as shown in Table 6.

[0325] Table 6

[0326]

[0327]

[0328] Implementation 3: Dynamic adjustment configuration of CP time domain length by network equipment.

[0329] Taking the network device as a base station as an example, the base station supports the ability to dynamically adjust the time domain length of the CP for the terminal. The base station can adjust the time domain length configuration of the CP in different time periods and different scenarios. At the same time, it can also adjust the time domain length configuration of the CP based on the uplink synchronization performance or the request of the terminal.

[0330] An example of a base station adjusting the CP time domain length is as follows:

[0331] When the terminal is moving at a low speed, the network device can configure a shorter CP time domain length for the terminal to send signals, which can resist smaller synchronization errors. When the terminal's moving speed increases, the network device finds that there is a large deviation in the terminal's uplink synchronization. At this time, the network device can configure a longer CP time domain length to support the terminal's synchronization error tolerance.

[0332] An example of a terminal actively requesting CP time domain length adjustment is as follows:

[0333] In the satellite network, the terminal mainly performs synchronization adjustment based on the ephemeris error. If the terminal finds that there is a large error in its ephemeris, or the base station and the terminal move faster and cannot guarantee the uplink and downlink synchronization, the terminal is supported to actively request the adjustment of the CP time domain length. The terminal carries the CP configuration request information requesting the network device to adjust the CP time domain length through uplink control signaling (Uplink Control Information) or RRC message or MAC message. After obtaining the request information from the terminal, the network device adjusts the configuration of the CP time domain length of the terminal to ensure the synchronization between the terminal and the network device, thereby improving the reliability of signal transmission.

[0334] In the process of dynamically adjusting the CP time domain length, the network device needs to monitor the status of the terminal, or the terminal actively sends a request message, and then the network device adjusts the configuration of the CP time domain length after obtaining information such as the speed and synchronization capability of the terminal.

[0335] For different terminal coexistence scenarios, the same CP time domain length configuration needs to be used in the same time slot, otherwise interference will occur between the terminals.

[0336] Embodiment 4: In view of the difference between uplink transmission and downlink transmission, the network device adjusts the configuration of the CP time domain length.

[0337] In downlink transmission, the signal flow is sent by one base station and received by multiple terminals; in uplink transmission, the signal flow is sent by multiple terminals and received by one base station. Considering that there is no difference in transmission delay between multiple terminals during downlink transmission, the CP time domain length can be configured to be very short, or there is no CP, that is, the CP time domain length is 0 (in the LOS path). In uplink transmission, the CP time domain length needs to consider the time deviation from different terminals to the base station. Since different terminals usually cannot maintain complete synchronization during uplink transmission, the network equipment needs to configure the necessary CP time domain length for uplink transmission.

[0338] For example, in a satellite scenario, the channel type is usually a LOS channel, so the multipath delay of the channel is very small. In downlink transmission, a very short CP time domain length can be configured, or the CP time domain length can be 0. For uplink transmission, the synchronization error of different terminals mainly comes from the errors caused by the satellite's ephemeris estimation error, the terminal's movement and clock offset, etc., so it is difficult to ensure the alignment of the terminal uplink signal on the base station side. At this time, the network equipment needs to configure the necessary CP time domain length for uplink transmission.

[0339] As shown in Table 7, another example of CP configuration parameters is given.

[0340] Table 7

[0341] CP time domain length for uplink transmission CP time domain length for downlink transmission CP1=4us CP1=2us CP2=2us CP2=1us CP3=1us CP3=0us CP4=0.5us CP4=0us

[0342] In future mobile communication systems, system design should allow uplink transmission and downlink transmission to be configured with different CP time domain lengths to improve resource utilization efficiency.

[0343] Embodiment 5: For the adjustment of the CP time domain length, the configuration of the number of time slot symbols needs to be updated synchronously.

[0344] Since the time length of a subframe is fixed, the configuration of different CP time domain lengths may result in differences in the number of symbols in a subframe. In order to ensure efficient use of time slot resources, it is necessary to allow the number of symbols in different time slots to be different, which also causes the size of the transmitted data packet in different time slots to change.

[0345] For example, in a time slot, when a longer CP time domain length is used, a time slot includes 12 symbols; if a shorter CP time domain length is used, a time slot includes 14 symbols; if zero CP (i.e., CP time domain length is 0) is used, a time slot includes 15 symbols. Therefore, different CP time domain lengths will bring about changes in the frame structure. When different subframes use different CP configurations, network devices can use different data symbol transmission formats in different subframes. Due to the changes in TB Size brought about by different numbers of symbols, the system capacity can be improved.

[0346] As shown in Table 8, an example of the change in the number of symbols corresponding to different CP time domain lengths is given.

[0347] Table 8

[0348]

[0349] For different users, if the CP time domain length is different, different numbers of symbols are also supported. This means that the CP time domain length can be terminal-specific, and the network device can configure different CP time domain lengths for different terminals. Furthermore, when scheduling a terminal, the network device may schedule different terminals in different time slots, and then use different frame configurations for different terminals, and the number of symbols and pilot symbols sent is also different.

[0350] The embodiment introduces the information processing method of the present application. The following embodiment will further illustrate its corresponding device, network equipment and terminal in conjunction with the accompanying drawings.

[0351] like Figure 3As shown, the embodiment of the present application provides an information processing device, including a memory 31, a transceiver 32, and a processor 33; wherein the memory 31 is used to store computer programs; the transceiver 32 is used to send and receive data under the control of the processor 33; the transceiver 32 is used to receive and send data under the control of the processor 33; the processor 33 is used to read the computer program in the memory 31 and perform the following operations:

[0352] Determine, according to the transmission configuration related information of the terminal, the time domain length of the first cyclic prefix CP of the terminal signal transmission;

[0353] Sending indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

[0354] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0355] The terminal type or capability of the terminal;

[0356] Mobile state information of the terminal;

[0357] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0358] A deployment scenario of the terminal;

[0359] synchronization requirements of the terminal;

[0360] Signal transmission time unit.

[0361] Optionally, the processor 33 is used to read the computer program in the memory 31 and perform the following operations:

[0362] When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, determining that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determining that the time domain length of the first CP of the terminal signal transmission is greater than 0;

[0363] and / or,

[0364] In a case where the transmission configuration information of the terminal includes the signal transmission time unit, determining the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0365] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0366] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0367] Optionally, the signal transmission time unit includes at least one of the following:

[0368] Time unit used for scheduling data of different beams;

[0369] The time unit used for scheduling of different user data.

[0370] Optionally, the indication information is carried by a first message. That is, the processor 33 is used to read the computer program in the memory 31 and perform the following operations:

[0371] Sending a first message to the terminal; wherein the first message carries the indication information.

[0372] Optionally, the first message includes at least one of the following:

[0373] System broadcast messages;

[0374] Radio Resource Control RRC message;

[0375] Media Access Control MAC message;

[0376] Downlink control signaling DCI.

[0377] Optionally, the processor 33 is used to read the computer program in the memory 31 and perform the following operations:

[0378] receiving a second message sent by the terminal; the second message carrying transmission configuration related information of the terminal and / or CP configuration request information of the terminal;

[0379] According to the second message, in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission is determined.

[0380] Optionally, the second message includes at least one of the following:

[0381] RRC message;

[0382] MAC message;

[0383] Messages carried by the physical uplink control channel PUCCH.

[0384] Optionally, the indication information is also used to indicate the number of symbols in a time slot.

[0385] Optionally, the processor 33 is used to read the computer program in the memory 31 and perform the following operations:

[0386] The time domain length of the first CP for terminal signal transmission is determined according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

[0387] Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

[0388] Executing an initial access process of the terminal according to a time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0389] The indication information is sent to the terminal during the initial access process, or is sent to the terminal after the initial access process.

[0390] Among them, Figure 3 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 33 and various circuits of memory represented by memory 31 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 32 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 33 is responsible for managing the bus architecture and general processing, and the memory 31 may store data used by the processor 33 when performing operations.

[0391] The processor 33 may 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 may also adopt a multi-core architecture.

[0392] It should be noted here that the above-mentioned information processing device provided in the embodiment of the present application can implement all the method steps implemented by the information processing method embodiment on the above-mentioned network device side, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0393] like Figure 4 As shown, the embodiment of the present application provides a network device 400, including:

[0394] The first processing unit 410 is used to determine the time domain length of the first cyclic prefix CP of the terminal signal transmission according to the transmission configuration related information of the terminal;

[0395] The sending unit 420 is used to send indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

[0396] Optionally, the transmission configuration related information of the terminal includes at least one of the following:

[0397] The terminal type or capability of the terminal;

[0398] Mobile state information of the terminal;

[0399] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0400] A deployment scenario of the terminal;

[0401] synchronization requirements of the terminal;

[0402] Signal transmission time unit.

[0403] Optionally, the first processing unit 410 is further configured to:

[0404] When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, determining that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determining that the time domain length of the first CP of the terminal signal transmission is greater than 0;

[0405] and / or,

[0406] In a case where the transmission configuration information of the terminal includes the signal transmission time unit, determining the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0407] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0408] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0409] Optionally, the signal transmission time unit includes at least one of the following:

[0410] Time unit used for scheduling data of different beams;

[0411] The time unit used for scheduling of different user data.

[0412] Optionally, the indication information is carried by a first message. That is, the sending unit 420 is further configured to:

[0413] Sending a first message to the terminal; wherein the first message carries the indication information.

[0414] Optionally, the first message includes at least one of the following:

[0415] System broadcast messages;

[0416] Radio Resource Control RRC message;

[0417] Media Access Control MAC message;

[0418] Downlink control signaling DCI.

[0419] Optionally, the first processing unit 410 is further configured to:

[0420] receiving a second message sent by the terminal; the second message carrying transmission configuration related information of the terminal and / or CP configuration request information of the terminal;

[0421] According to the second message, in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission is determined.

[0422] Optionally, the second message includes at least one of the following:

[0423] RRC message;

[0424] MAC message;

[0425] Messages carried by the physical uplink control channel PUCCH.

[0426] Optionally, the indication information is also used to indicate the number of symbols in a time slot.

[0427] Optionally, the first processing unit 410 is further configured to:

[0428] The time domain length of the first CP for terminal signal transmission is determined according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

[0429] Optionally, the network device 400 further includes:

[0430] A second processing unit, configured to perform an initial access process of the terminal according to a time domain length of a second CP, wherein the time domain length of the second CP is preset;

[0431] The indication information is sent by the network device to the terminal during the initial access process, or is sent by the network device to the terminal after the initial access process.

[0432] It should be noted here that the above-mentioned network device provided in the embodiment of the present application can implement all the method steps implemented by the information processing method embodiment on the above-mentioned network device side, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0433] like Figure 5 As shown, this embodiment provides an information processing device, including a memory 51, a transceiver 52, and a processor 53; wherein the memory 51 is used to store computer programs; the transceiver 52 is used to send and receive data under the control of the processor; the transceiver 52 is used to receive and send data under the control of the processor 53; the processor 53 is used to read the computer program in the memory 51 and perform the following operations:

[0434] Receiving indication information sent by a network device; wherein the indication information is used to indicate the time domain length of a first cyclic prefix CP for terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal;

[0435] Signal transmission is performed according to the time domain length of the first CP.

[0436] Optionally, the transmission configuration related information of the terminal is used to indicate at least one of the following:

[0437] The terminal type or capability of the terminal;

[0438] Mobile state information of the terminal;

[0439] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0440] A deployment scenario of the terminal;

[0441] synchronization requirements of the terminal;

[0442] Signal transmission time unit.

[0443] Optionally, when the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or indicates that the time domain length of the first CP is greater than 0;

[0444] and / or,

[0445] In the case where the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0446] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0447] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0448] Optionally, the signal transmission time unit includes at least one of the following:

[0449] Time unit used for scheduling data of different beams;

[0450] The time unit used for scheduling of different user data.

[0451] Optionally, the indication information is carried by a first message. That is, the processor 53 is used to read the computer program in the memory 51 and perform the following operations:

[0452] Receive a first message sent by the network device; wherein the first message carries the indication information.

[0453] Optionally, the first message includes at least one of the following:

[0454] System messages;

[0455] Radio Resource Control RRC message;

[0456] Media Access Control MAC message;

[0457] Downlink control signaling DCI.

[0458] Optionally, the processor 53 is configured to read the computer program in the memory 51 and perform the following operations:

[0459] Sending a second message to the network device; wherein the second message carries the transmission configuration related information of the terminal and / or the CP configuration request information of the terminal.

[0460] Optionally, the second message includes at least one of the following:

[0461] RRC message;

[0462] MAC message;

[0463] Messages carried by the physical uplink control channel PUCCH.

[0464] Optionally, the indication information is also used to indicate the number of symbols in a time slot;

[0465] and / or,

[0466] The time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

[0467] Optionally, the processor 53 is configured to read the computer program in the memory 51 and perform the following operations:

[0468] Performing an initial access process according to a time domain length of the second CP; wherein the time domain length of the second CP is preset;

[0469] The indication information is received during the initial access process or after the initial access process.

[0470] Among them, Figure 5 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 53 and various circuits of memory represented by memory 51 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 52 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 54 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0471] The processor 53 is responsible for managing the bus architecture and general processing, and the memory 51 can store data used by the processor 53 when performing operations.

[0472] Optionally, the processor 53 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0473] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0474] It should be noted here that the above-mentioned information processing device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned terminal-side information processing method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0475] like Figure 6 As shown, the embodiment of the present application provides a terminal 600, including:

[0476] The receiving unit 610 is configured to receive indication information sent by a network device; wherein the indication information is used to indicate the time domain length of the first cyclic prefix CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal;

[0477] The first processing unit 620 is configured to perform signal transmission according to the time domain length of the first CP.

[0478] Optionally, the transmission configuration related information of the terminal is used to indicate at least one of the following:

[0479] The terminal type or capability of the terminal;

[0480] Mobile state information of the terminal;

[0481] The signal transmission of the terminal is uplink transmission or downlink transmission;

[0482] A deployment scenario of the terminal;

[0483] synchronization requirements of the terminal;

[0484] Signal transmission time unit.

[0485] Optionally, when the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or indicates that the time domain length of the first CP is greater than 0;

[0486] and / or,

[0487] In the case where the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit;

[0488] The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

[0489] Optionally, the first symbol is the first symbol in the time unit, and the second symbol is a symbol in the time unit except the first symbol.

[0490] Optionally, the signal transmission time unit includes at least one of the following:

[0491] Time unit used for scheduling data of different beams;

[0492] The time unit used for scheduling of different user data.

[0493] Optionally, the indication information is carried by a first message. That is, the receiving unit 610 is further configured to:

[0494] Receive a first message sent by the network device; wherein the first message carries the indication information.

[0495] Optionally, the first message includes at least one of the following:

[0496] System messages;

[0497] Radio Resource Control RRC message;

[0498] Media Access Control MAC message;

[0499] Downlink control signaling DCI.

[0500] Optionally, the terminal 600 further includes:

[0501] A sending unit is used to send a second message to the network device; wherein the second message carries the transmission configuration related information of the terminal and / or the CP configuration request information of the terminal.

[0502] Optionally, the second message includes at least one of the following:

[0503] RRC message;

[0504] MAC message;

[0505] Messages carried by the physical uplink control channel PUCCH.

[0506] Optionally, the indication information is also used to indicate the number of symbols in a time slot;

[0507] and / or,

[0508] The time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

[0509] Optionally, the terminal 600 further includes:

[0510] A second processing unit, configured to perform an initial access process according to a time domain length of a second CP, wherein the time domain length of the second CP is preset;

[0511] The indication information is received during the initial access process or after the initial access process.

[0512] It should be noted here that the above-mentioned terminal provided in the embodiment of the present application can implement all the method steps implemented by the information processing method embodiment on the above-mentioned terminal side, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0513] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0514] If the integrated unit is implemented in the form of 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 the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0515] An embodiment of the present application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the steps of the information processing method on the network device side, or the computer program is used to enable the processor to execute the steps of the information processing method on the terminal side, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0516] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0517] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0518] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0519] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0520] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0521] In addition, it should be noted that in the device and method of the present application, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present application. In addition, the steps of performing the above-mentioned series of processes can be naturally performed in chronological order according to the order of description, but it is not necessary to perform in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is possible to understand that all or any steps or components of the method and device of the present application can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices with hardware, firmware, software or a combination thereof, which can be realized by those of ordinary skill in the art using their basic programming skills after reading the description of the present application.

[0522] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An information processing method, characterized in that: include: The network device determines the time domain length of the first cyclic prefix CP for terminal signal transmission according to the transmission configuration related information of the terminal; The network device sends indication information to the terminal, wherein the indication information is used to indicate the time domain length of the first CP.

2. The information processing method according to claim 1, characterized in that: The transmission configuration related information of the terminal includes at least one of the following: The terminal type or capability of the terminal; Mobile state information of the terminal; The signal transmission of the terminal is uplink transmission or downlink transmission; A deployment scenario of the terminal; synchronization requirements of the terminal; Signal transmission time unit.

3. The information processing method according to claim 2, characterized in that: The network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including: When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the network device determines that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determines that the time domain length of the first CP of the terminal signal transmission is greater than 0.

4. The information processing method according to claim 2, characterized in that: The network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including: In a case where the transmission configuration information of the terminal includes the signal transmission time unit, the network device determines the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit; The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

5. The information processing method according to claim 4, characterized in that: The first symbol is the first symbol in the time unit, and the second symbol is the symbol other than the first symbol in the time unit.

6. The information processing method according to claim 4, characterized in that: The signal transmission time unit includes at least one of the following: Time unit used for scheduling data of different beams; The time unit used for scheduling of different user data.

7. The information processing method according to any one of claims 1 to 6, characterized in that: The indication information is carried by a first message, and the first message includes at least one of the following: System broadcast messages; Radio Resource Control RRC message; Media Access Control MAC message; Downlink control signaling DCI.

8. The information processing method according to any one of claims 1 to 6, characterized in that: The network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including: The network device receives a second message sent by the terminal; the second message carries transmission configuration related information of the terminal and / or CP configuration request information of the terminal; The network device determines, according to the second message and in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission.

9. The information processing method according to claim 8, characterized in that: The second message includes at least one of the following: RRC message; MAC message; Messages carried by the physical uplink control channel PUCCH.

10. The information processing method according to any one of claims 1 to 6, characterized in that: The indication information is also used to indicate the number of symbols in the time slot.

11. The information processing method according to any one of claims 1 to 6, characterized in that: The network device determines, according to the transmission configuration related information of the terminal, a time domain length of a first cyclic prefix CP for terminal signal transmission, including: The network device determines the time domain length of the first CP of the terminal signal transmission according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

12. The information processing method according to any one of claims 1 to 6, characterized in that: Also includes: The network device performs an initial access process of the terminal according to the time domain length of the second CP; wherein the time domain length of the second CP is preset; The indication information is sent by the network device to the terminal during the initial access process, or is sent by the network device to the terminal after the initial access process.

13. An information processing method, characterized in that: include: The terminal receives indication information sent by the network device; wherein the indication information is used to indicate the time domain length of the first cyclic prefix CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal; The terminal transmits a signal according to the time domain length of the first CP.

14. The information processing method according to claim 13, characterized in that: The transmission configuration related information of the terminal includes at least one of the following: The terminal type or capability of the terminal; Mobile state information of the terminal; The signal transmission of the terminal is uplink transmission or downlink transmission; A deployment scenario of the terminal; synchronization requirements of the terminal; Signal transmission time unit.

15. The information processing method according to claim 14, characterized in that: In a case where the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or to indicate that the time domain length of the first CP is greater than 0.

16. The information processing method according to claim 14, characterized in that: In the case where the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit; The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

17. The information processing method according to claim 16, characterized in that: The first symbol is the first symbol in the time unit, and the second symbol is the symbol other than the first symbol in the time unit.

18. The information processing method according to claim 16, characterized in that: The signal transmission time unit includes at least one of the following: Time unit used for scheduling data of different beams; The time unit used for scheduling of different user data.

19. The information processing method according to any one of claims 13 to 18, characterized in that: The indication information is carried by a first message, and the first message includes at least one of the following: System messages; Radio Resource Control RRC message; Media Access Control MAC message; Downlink control signaling DCI.

20. The information processing method according to any one of claims 13 to 18, characterized in that: Before the terminal receives the instruction information sent by the network device, the method further includes: The terminal sends a second message to the network device; wherein the second message carries transmission configuration related information of the terminal and / or CP configuration request information of the terminal.

21. The information processing method according to claim 20, characterized in that: The second message includes at least one of the following: RRC message; MAC message; Messages carried by the physical uplink control channel PUCCH.

22. The information processing method according to any one of claims 13 to 18, characterized in that: The indication information is also used to indicate the number of symbols in a time slot; and / or, The time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

23. The information processing method according to any one of claims 13 to 18, characterized in that: Also includes: The terminal performs an initial access process according to a time domain length of the second CP; wherein the time domain length of the second CP is preset; The indication information is received during the initial access process or after the initial access process.

24. An information processing device, characterized in that: Including memory, transceiver, processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Determine, according to the transmission configuration related information of the terminal, the time domain length of the first cyclic prefix CP of the terminal signal transmission; Sending indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

25. The information processing device according to claim 24, characterized in that: The transmission configuration related information of the terminal includes at least one of the following: The terminal type or capability of the terminal; Mobile state information of the terminal; The signal transmission of the terminal is uplink transmission or downlink transmission; A deployment scenario of the terminal; synchronization requirements of the terminal; Signal transmission time unit.

26. The information processing device according to claim 25, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: When the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, determining that the time domain length of the first CP of the terminal signal transmission is equal to 0, or determining that the time domain length of the first CP of the terminal signal transmission is greater than 0; and / or, In a case where the transmission configuration information of the terminal includes the signal transmission time unit, determining the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit; The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

27. The information processing device according to claim 26, characterized in that: The first symbol is the first symbol in the time unit, and the second symbol is the symbol other than the first symbol in the time unit.

28. The information processing device according to claim 26, characterized in that: The signal transmission time unit includes at least one of the following: Time unit used for scheduling data of different beams; The time unit used for scheduling of different user data.

29. The information processing device according to any one of claims 24 to 28, characterized in that: The indication information is carried by a first message, and the first message includes at least one of the following: System broadcast messages; Radio Resource Control RRC message; Media Access Control MAC message; Downlink control signaling DCI.

30. The information processing device according to any one of claims 24 to 28, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: receiving a second message sent by the terminal; the second message carrying transmission configuration related information of the terminal and / or CP configuration request information of the terminal; According to the second message, in combination with the transmission configuration related information of the terminal, the time domain length of the first CP of the terminal signal transmission is determined.

31. The information processing device according to claim 30, characterized in that: The second message includes at least one of the following: RRC message; MAC message; Messages carried by the physical uplink control channel PUCCH.

32. The information processing device according to any one of claims 24 to 28, characterized in that: The indication information is also used to indicate the number of symbols in a time slot.

33. The information processing device according to any one of claims 24 to 28, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: The time domain length of the first CP for terminal signal transmission is determined according to the relevant information of the transmission configuration of the terminal and the subcarrier spacing information.

34. The information processing device according to any one of claims 24 to 28, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: Executing an initial access process of the terminal according to a time domain length of the second CP; wherein the time domain length of the second CP is preset; The indication information is sent to the terminal during the initial access process, or is sent to the terminal after the initial access process.

35. A network device, characterized in that: include: A first processing unit, configured to determine a time domain length of a first cyclic prefix CP for terminal signal transmission according to the transmission configuration related information of the terminal; A sending unit is used to send indication information to the terminal; wherein the indication information is used to indicate the time domain length of the first CP.

36. An information processing device, characterized in that: Including memory, transceiver, processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Receiving indication information sent by a network device; wherein the indication information is used to indicate the time domain length of a first cyclic prefix CP for terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal; Signal transmission is performed according to the time domain length of the first CP.

37. The information processing device according to claim 36, characterized in that: The transmission configuration related information of the terminal includes at least one of the following: The terminal type or capability of the terminal; Mobile state information of the terminal; The signal transmission of the terminal is uplink transmission or downlink transmission; A deployment scenario of the terminal; synchronization requirements of the terminal; Signal transmission time unit.

38. The information processing device according to claim 37, characterized in that: In a case where the transmission configuration related information of the terminal includes that the signal transmission of the terminal is downlink transmission, the indication information is used to indicate that the time domain length of the first CP is equal to 0, or indicates that the time domain length of the first CP is greater than 0; and / or, In the case where the transmission configuration information of the terminal includes the signal time unit, the indication information is used to indicate the time domain length of the first CP of the first symbol of the terminal signal transmission in the time unit, and the time domain length of the first CP of the second symbol of the terminal signal transmission in the time unit; The first CP of the first symbol is used for signal synchronization tracking, the first CP of the second symbol is used for signal detection, and the time domain length of the first CP of the first symbol is greater than the time domain length of the first CP of the second symbol.

39. The information processing device according to claim 38, characterized in that: The first symbol is the first symbol in the time unit, and the second symbol is the symbol other than the first symbol in the time unit.

40. The information processing device according to claim 38, characterized in that The signal transmission time unit includes at least one of the following: Time unit used for scheduling data of different beams; The time unit used for scheduling of different user data.

41. The information processing device according to any one of claims 36 to 40, characterized in that: The indication information is carried by a first message, and the first message includes at least one of the following: System messages; Radio Resource Control RRC message; Media Access Control MAC message; Downlink control signaling DCI.

42. The information processing device according to any one of claims 36 to 40, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: Sending a second message to the network device; wherein the second message carries the transmission configuration related information of the terminal and / or the CP configuration request information of the terminal.

43. The information processing device according to claim 42, characterized in that: The second message includes at least one of the following: RRC message; MAC message; Messages carried by the physical uplink control channel PUCCH.

44. The information processing device according to any one of claims 36 to 40, characterized in that: The indication information is also used to indicate the number of symbols in a time slot; and / or, The time domain length of the first CP indicated by the indication information is determined according to relevant information of the transmission configuration of the terminal and subcarrier spacing information.

45. The information processing device according to any one of claims 36 to 40, characterized in that: The processor is configured to read the computer program in the memory and perform the following operations: Performing an initial access process according to a time domain length of the second CP; wherein the time domain length of the second CP is preset; The indication information is received during the initial access process or after the initial access process.

46. ​​A terminal, characterized in that: include: A receiving unit, configured to receive indication information sent by a network device; wherein the indication information is used to indicate the time domain length of the first cyclic prefix CP of the terminal signal transmission, and the time domain length of the first CP is determined according to the transmission configuration related information of the terminal; The first processing unit is configured to perform signal transmission according to the time domain length of the first CP.

47. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, which is used to cause the processor to execute the steps in the information processing method described in any one of claims 1 to 12, or the computer program is used to cause the processor to execute the steps in the information processing method described in any one of claims 13 to 23.

Images