Transmission processing method and device, terminal and network side equipment

Abstract

The invention discloses a transmission processing method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the transmission processing method comprises the steps that the terminal determines a cyclic prefix (CP) parameter according to target information; wherein the target information comprises any one of the following items: first configuration information sent by network side equipment, and the first configuration information is used for configuring the CP parameter; and at least one of second configuration information and a predefined rule, the second configuration information being associated with the CP parameter.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a transmission processing method, apparatus, terminal, and network-side device. Background Art

[0002] With the development of communication technologies, a communication system supports the transmission of multiple different types of user terminals, or the same user terminal can support multiple different transceivers. Currently, during the transmission process, for the same transmission scenario, various different types of terminals or different types of transceivers usually adopt the same Cyclic Prefix (CP) parameter, that is, the same type of CP is used. Therefore, there is a problem of low flexibility in determining CP parameters in the prior art. Summary of the Invention

[0003] Embodiments of this application provide a transmission processing method, apparatus, terminal, and network-side device, which can solve the problem of low flexibility in determining CP parameters.

[0004] In a first aspect, a transmission processing method is provided, including:

[0005] A terminal determines a Cyclic Prefix (CP) parameter according to target information;

[0006] Wherein, the target information includes any one of the following:

[0007] First configuration information sent by a network-side device, where the first configuration information is used to configure the CP parameter;

[0008] At least one of second configuration information and a predefined rule, where the second configuration information is associated with the CP parameter.

[0009] In a second aspect, a transmission processing method is provided, including:

[0010] A network-side device sends target configuration information to a terminal, where the target configuration information is used to determine a Cyclic Prefix (CP) parameter, and the target configuration information includes first configuration information or second configuration information;

[0011] Wherein, the first configuration information is used to configure the CP parameter; the second configuration information is associated with the CP parameter.

[0012] In a third aspect, a transmission processing apparatus is provided, including:

[0013] A determination module, configured to determine a Cyclic Prefix (CP) parameter according to target information;

[0014] Wherein, the target information includes any one of the following:

[0015] The first configuration information sent by the network-side device, where the first configuration information is used to configure the CP parameter;

[0016] At least one of the second configuration information and the predefined rule, where the second configuration information is associated with the CP parameter.

[0017] In a fourth aspect, there is provided a transmission processing device, characterized by including:

[0018] A second sending module, configured to send target configuration information to a terminal, where the target configuration information is used to determine the cyclic prefix CP parameter, and the target configuration information includes the first configuration information or the second configuration information;

[0019] Wherein, the first configuration information is used to configure the CP parameter; the second configuration information is associated with the CP parameter.

[0020] In a fifth aspect, there is provided a terminal, which includes a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0021] In a sixth aspect, there is provided a terminal, including a processor and a communication interface, wherein, the processor is configured to determine the cyclic prefix CP parameter according to target information; wherein, the target information includes any one of the following: the first configuration information sent by the network-side device, where the first configuration information is used to configure the CP parameter; at least one of the second configuration information and the predefined rule, where the second configuration information is associated with the CP parameter.

[0022] In a seventh aspect, there is provided a network-side device, which includes a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0023] In an eighth aspect, there is provided a network-side device, including a processor and a communication interface, wherein, the communication interface is configured to send target configuration information to a terminal, where the target configuration information is used to determine the cyclic prefix CP parameter, and the target configuration information includes the first configuration information or the second configuration information; wherein, the first configuration information is used to configure the CP parameter; the second configuration information is associated with the CP parameter.

[0024] In a ninth aspect, there is provided a readable storage medium, where a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0025] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network-side device. The terminal can be used to execute the steps of the method described in the first aspect, and the network-side device can be used to execute the steps of the method described in the second aspect.

[0026] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the first aspect or the method described in the second aspect.

[0027] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium and is executed by at least one processor to implement the method described in the first aspect or the method described in the second aspect.

[0028] In the embodiments of the present application, the terminal determines the cyclic prefix CP parameter according to the target information; wherein, the target information includes any one of the following: the first configuration information sent by the network-side device, and the first configuration information is used to configure the CP parameter; at least one of the second configuration information and a predefined rule, and the second configuration information is associated with the CP parameter. In this way, the terminal can determine the CP parameter based on the first configuration information sent by the network-side device or based on at least one of the second configuration information and the predefined rule, thereby improving the flexibility of CP parameter determination. Description of the Drawings

[0029] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0030] Figure 2 is a schematic flowchart of a transmission processing method provided by the embodiments of the present application;

[0031] Figure 3 is a schematic flowchart of another transmission processing method provided by the embodiments of the present application;

[0032] Figure 4 is a schematic structural diagram of a transmission processing device provided by the embodiments of the present application;

[0033] Figure 5 is a schematic structural diagram of another transmission processing device provided by the embodiments of the present application;

[0034] Figure 6 is a schematic structural diagram of a communication device provided by the embodiments of the present application;

[0035] Figure 7 is a schematic structural diagram of a terminal provided by the embodiments of the present application;

[0036] Figure 8 It is a schematic structural diagram of a network-side device provided by an embodiment of the present application. Specific implementation manners

[0037] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0038] The term "indicate" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0039] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only in the systems and radio technologies mentioned above, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses the NR terms in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6 th Generation, 6G) communication system.

[0040] Figure 1The block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to a specific technical term. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0041] For the convenience of understanding, some content related to the embodiments of this application is described below:

[0042] I. Cyclic Prefix (CP).

[0043] In an Orthogonal Frequency Division Multiplexing (OFDM) system, an OFDM symbol usually consists of two parts. The first part is the cyclic prefix, and the second part is the time-domain signal obtained after the Inverse Fast Fourier Transform (IFFT). The cyclic prefix is composed of the last Ncp sampling points of the second part.

[0044] Without a CP, there may be inter-symbol interference between two adjacent OFDM symbols. For example, due to multipath delay, the tail of the previous OFDM symbol overlaps with multiple sampling points at the start of the second OFDM symbol, or due to timing error, the Fast Fourier Transform (FFT) time window at the receiving end includes the last multiple sampling points of the previous OFDM symbol and partial sampling points of the current OFDM symbol. Adding a cyclic prefix, and the length of the cyclic prefix is not less than the total delay (e.g., including the transmission delay and the delay caused by timing error), can ensure that only the signal of the current OFDM symbol is included within the FFT time window at the receiving end, without inter-symbol interference. The length of the CP is related to the channel environment. For example, in an environment with a small propagation delay, a shorter CP is sufficient to eliminate inter-symbol interference, while in an environment with a large propagation delay, a longer CP is required. Therefore, the NR or LTE system supports two types of CPs, one called normal CP (NCP) and the other called Extended CP (ECP). The CP can avoid inter-symbol interference, but since the CP part cannot carry additional information, the overhead of the CP part will lead to a reduction in resource efficiency, that is, within an OFDM symbol, the longer the CP, the higher the proportion it occupies, and the lower the transmission efficiency of this OFDM symbol. As shown in Table 1 and Table 2, with NCP, 14 OFDM symbols can be transmitted in one time slot, and with ECP, only 12 OFDM symbols can be transmitted in one time slot. In system design, it is usually necessary to consider the trade-off between transmission efficiency and inter-symbol interference.

[0045] Table 1:

[0046]

[0047] Table 2:

[0048]

[0049] The NR system can support different subcarrier spacings (SCS). For different SCSs, the ratio of the number of sampling points in the first part (CP) and the second part within an OFDM symbol is the same, thus ensuring the same transmission efficiency. For any SCS, for a specific OFDM symbol, the ratio of the number of sampling points of the first part NCP to the second part is 144:2048. If the first part is ECP, then the ratio is 512:2048. Since the ratio of the first part to the second part does not change with the SCS, the time length of the CP part decreases as the SCS increases.

[0050] In the NR system, after evaluation, although the CP length shortens as the SCS increases, in the Frequency Range 1 (FR1) scenario, when the SCS is 15 KHz and 30 KHz, the NCP length is sufficient to reduce inter-symbol interference. However, when the SCS is 60 KHz, the NCP length is insufficient under some channel conditions. Therefore, NCP and ECP are supported when the SCS is 60 KHz. In the FR2 and FR2-2 scenarios, due to the reduced coverage area and the use of analog beams, the multipath delay is significantly shorter than that in FR1. Therefore, although the CP length shortens as the SCS increases, the NCP length is still sufficient.

[0051] In addition, for the NR or LTE system, the time and frequency domain deviations of the UE or the base station caused by hardware need to meet specific requirements. For example, the UE needs to meet the requirement that the Carrier Frequency Offset (CFO) does not exceed 0.1 ppm, and the UE regularly corrects the time and frequency domain deviations according to the synchronization signal. Therefore, the length of the CP required due to the timing error can be basically ignored.

[0052] In an NR or LTE system, various types of user terminals that support OFDM transmission, such as ordinary UEs, or Narrow Band Internet of Things (NB-IoT) UEs, or Reduced Capability (Redcap) UEs, need to meet the same carrier frequency offset (CFO) requirement, not exceeding 0.1 ppm. Therefore, for various UEs in the same scenario, only one type of CP length is required. However, in a 6G system, there may be various types of terminals, for example, terminals that support lower power consumption. Such terminals often have reduced complexity of hardware components and reduced power consumption, which leads to reduced performance. For example, the achievable CFO is relaxed to 10 ppm or 20 ppm. Then, for various UEs in the same scenario, due to different timing accuracies, different CP lengths are required. Or, for a UE that supports multiple transceivers with different timing accuracies, the CP lengths required by the same UE at different times are different. In addition, if the SCS differences among various UEs are large, for example, in the FR1 frequency band, SCS is supported from 15 KHz to 1.92 MHz, then using NCP for all these UEs will result in too short CP for UEs with large SCS, and due to the degradation of inter-symbol interference performance, if ECP is used for all, it will result in too long CP for UEs with small SCS and reduced transmission efficiency. In addition, in a 6G system, the channel delays experienced by various types of terminals may also be different. For example, some UEs receive signals from satellites, some UEs receive signals from terrestrial base stations, and for another example, some UEs receive signals from one base station while one UE receives signals from multiple base stations, all of which will result in different propagation delays. Or, for the same UE, at different times, the propagation delays of the received signals are different. For example, the Physical Downlink Control Channel (PDCCH) comes from one base station, and the Physical Downlink Shared Channel (PDSCH) comes from multiple base stations. Therefore, different propagation delays also require different CP types.

[0053] Currently, ECP is only supported when SCS is 60 KHz, and one BWP only supports one type of CP, which cannot meet the requirements of new scenarios in a 6G system. Therefore, the transmission processing method of this application is proposed.

[0054] The following will, in conjunction with the accompanying drawings, detail the transmission processing method provided by the embodiments of this application through some embodiments and their application scenarios.

[0055] Referring to Figure 2 , the embodiments of this application provide a transmission processing method, as Figure 2As shown, the transmission processing method includes:

[0056] Step 201, the terminal determines the cyclic prefix CP parameter according to the target information;

[0057] Wherein, the target information includes any one of the following:

[0058] The first configuration information sent by the network side device, and the first configuration information is used to configure the CP parameter;

[0059] At least one of the second configuration information and the predefined rule, and the second configuration information is associated with the CP parameter.

[0060] In the embodiments of the present application, the above first configuration information can be understood as CP configuration information for explicitly configuring the CP parameter. The CP parameter may include a CP type or a CP configuration index. Among them, the CP type may include NCP or ECP.

[0061] Optionally, in some embodiments, the first configuration information includes a CP type or a CP configuration index. That is, in the embodiments of the present application, the network side device can explicitly configure the CP parameter, and the terminal can determine the CP parameter based on the CP parameter explicitly configured by the network side device, which can improve the flexibility of determining the CP parameter.

[0062] Optionally, determining the above CP parameter through the above second configuration information can be understood as that the network side device implicitly configures the CP parameter through the second configuration information, and the terminal can determine the CP parameter based on the CP parameter implicitly configured by the network side device, which can improve the flexibility of determining the CP parameter.

[0063] It should be noted that, in some embodiments, the terminal can determine the CP based on the CP parameter. Therefore, determining the CP parameter can be understood or replaced by determining the CP.

[0064] Optionally, determining the CP parameter by the above predefined rule to determine the above CP parameter can be understood as determining the current CP parameter based on the predefined rule under different communication parameters, which can improve the flexibility of determining the CP parameter. Among them, the communication parameter may include a parameter corresponding to the second configuration information or other fixed parameters, such as the terminal type.

[0065] In an embodiment of the present application, the terminal determines cyclic prefix (CP) parameters according to target information; where the target information includes any one of the following: first configuration information sent by a network-side device, the first configuration information being used to configure the CP parameters; at least one of second configuration information and a predefined rule, the second configuration information being associated with the CP parameters. In this way, the terminal can determine the CP parameters based on the first configuration information sent by the network-side device, or based on at least one of the second configuration information and the predefined rule, thereby improving the flexibility of determining the CP parameters.

[0066] Optionally, in some embodiments, the first configuration information further includes at least one of the following: first time information and first frequency-domain information;

[0067] The first time information is used to indicate the time associated with the CP parameters, and the first frequency-domain information is used to indicate the frequency associated with the CP parameters.

[0068] In an embodiment of the present application, the above first configuration information may include a time unit - CP type pattern, that is, the first configuration information configures the pattern or association relationship between the time unit and the CP type, where the CP types of different time units may be the same or different.

[0069] Optionally, the above first configuration information may include a frequency unit - CP type pattern, that is, the first configuration information configures the pattern or association relationship between the frequency unit and the CP type, where the CP types of different frequency units may be the same or different.

[0070] Since the first configuration information further includes the first time information and the first frequency-domain information, corresponding CP parameters can be set based on different time units and different frequencies, thereby further improving the flexibility of determining the CP parameters.

[0071] Optionally, in some embodiments, the above first configuration information may be carried by semi-static or dynamic signaling. The semi-static or dynamic signaling may include Radio Resource Control (RRC), Medium Access Control Control Element (MAC CE), or layer 1 signaling, where the layer 1 signaling includes terminal-specific signaling or group common signaling. For example, in some embodiments, the first configuration information is carried by at least one of the following:

[0072] Information for configuring a semi-static Physical Downlink Shared Channel (PDSCH);

[0073] Information for configuring an authorized Physical Uplink Shared Channel (PUSCH);

[0074] Configure the information of the Physical Uplink Control Channel (PUCCH).

[0075] Configure the information of PUCCH resources.

[0076] Configure the information of Channel-State-Information Reference Signal (CSI-RS) resources.

[0077] Configure the information of CSI-RS resource sets.

[0078] Configure the information of Sounding Reference Signal (SRS) resources.

[0079] Configure the information of SRS resource sets.

[0080] Configure the information of the Physical Downlink Control Channel PDCCH.

[0081] Configure the information of the Physical Random Access Channel (PRACH).

[0082] Configure the information of the Synchronization Signal / PBCH Block (SSB).

[0083] Optionally, in some embodiments, the information for configuring the PDCCH includes: configuration information of a search space or configuration information of a resource set.

[0084] Optionally, in some embodiments, the first configuration information is configured for any one of the following: carrier, carrier group, bandwidth part BWP, BWP group, frequency domain resource sub-block, terminal type, subcarrier spacing configuration, waveform, modulation and coding scheme, modulation and coding table, signal type, service type, system deployment mode, time unit type, and priority.

[0085] In the embodiments of the present application, it can be understood that the first configuration information configured for any of the above is: the first configuration information is configured per any of the above. For example, if the first configuration information is configured per BWP, it can be understood that a first configuration information is sent for each BWP. The first configuration information for different BWPs may be the same or different. Assume that the protocol predefines 4 CP configuration indexes, where the first two configuration CP indexes correspond to terminal type 1 and the last two configuration CP indexes correspond to terminal type 2. At this time, for terminal type 1, at least some of the carriers can use the CP configuration indexes used by each carrier through the first configuration information per carrier.

[0086] Optionally, in some embodiments, the predefined rules include at least one of the following:

[0087] The association relationship between the terminal type and the CP parameter;

[0088] The association relationship between the transceiver type and the CP parameter;

[0089] The association relationship between the transmission mode and the CP parameter;

[0090] The association relationship between the subcarrier spacing and the CP parameter;

[0091] The association relationship between the waveform and the CP parameter;

[0092] The association relationship between the modulation and coding information and the CP parameter;

[0093] The association relationship between the signal type and the CP parameter;

[0094] The association relationship between the service type and the CP parameter;

[0095] The association relationship between the time unit type and the CP parameter;

[0096] The association relationship between the frequency domain resource sub-block type and the CP parameter;

[0097] The association relationship between the BWP type and the CP parameter;

[0098] The association relationship between the carrier type and the CP parameter;

[0099] The association relationship between the frequency band and the CP parameter;

[0100] The association relationship between the system deployment mode and the CP parameter;

[0101] The association relationship between the cell type and the CP parameter;

[0102] The association relationship between the time interval from the control channel to the scheduled signal and the first rule and the second rule, where the control channel is used to carry the first configuration information or the second configuration information. Among them, when the time interval from the control channel to the scheduled signal is greater than or equal to a preset threshold, the CP parameter is determined based on the first rule; when the time interval from the control channel to the scheduled signal is less than the preset threshold, the CP parameter is determined based on the second rule.

[0103] In the embodiments of the present application, the above signal can be understood as a reference signal or a physical channel. The above predefined rules can be understood as determining the CP parameter based on one or more of the terminal type, transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, frequency domain resource, system deployment mode, cell type, time unit type, service type, and the time interval from the control channel to the scheduled signal.

[0104] For the terminal type, taking the terminals that support different time accuracy requirements as an example, it can be set that the terminals that only support lower time accuracy or frequency domain accuracy (that is, do not support higher time accuracy or frequency domain accuracy) can determine that the CP type is the first CP type. For the terminals that support higher time accuracy or frequency domain accuracy, the CP type can be determined as the second CP type.

[0105] Optionally, compared with the second CP type, the first CP type has a longer CP length. For example, if the terminal has weak capabilities, a longer CP (such as ECP) is used; if the capabilities are strong, a shorter CP (such as NCP) can be used.

[0106] For the transceiver type, for example, two transceiver types are defined, and the achievable time or frequency domain accuracy is different. The second configuration information can configure the transceiver type or the type of time accuracy or frequency domain accuracy requirements. The terminal can determine the CP type according to the second configuration information. For example, if the terminal is configured to use a transceiver with lower time accuracy or frequency domain accuracy, the terminal can determine that the CP type is the first CP type; if the network side device configures the terminal to use a transceiver with higher time accuracy or frequency domain accuracy, the terminal can determine that the CP type is the second CP type.

[0107] For the transmission mode, for example, multiple transmission modes are defined. Among them, transmission mode one is a low-power consumption transmission mode, corresponding to the first CP type, and transmission mode two is a normal power consumption transmission mode, corresponding to the second CP type.

[0108] For the SCS, for example, when the configured SCS is 1.92 MHz, it corresponds to the first CP type, and other subcarrier spacings correspond to the second CP type.

[0109] For the waveform, for example, the waveform based on OFDM corresponds to the first CP type, and the waveform based on OOK corresponds to the second CP type.

[0110] For the modulated coding information, for example, if the modulation order is higher than a predefined or configured threshold, it corresponds to the first CP type; otherwise, it corresponds to the second CP type.

[0111] For the signal type, for example, for a specific reference signal, such as a preamble, it corresponds to the first CP type; otherwise, it corresponds to the second CP type. For another example, for a signal with a specific channel structure, such as a signal in the form of a preamble plus a payload, it corresponds to the first CP type, and a signal without a preamble corresponds to the second CP type.

[0112] For the service type, for example, for a specific service type, it corresponds to the first CP type, and other service types correspond to the second CP type.

[0113] For the time unit type, for example, for a specific time unit type, it corresponds to the first CP type, and other time unit types correspond to the second CP type. For example, the time slot type for unicast transmission corresponds to NCP, and the time slot type for multicast or broadcast for multi-transmission points (such as multi-cells) corresponds to ECP.

[0114] For the BWP type, for example, for an initial BWP, it corresponds to the first CP type, and other BWPs or a specific BWP correspond to the second CP type.

[0115] For the carrier type, for example, for a carrier with a carrier bandwidth less than a predefined or configured threshold, it corresponds to the first CP type; otherwise, it corresponds to the second CP type.

[0116] For the frequency band, for example, a specific frequency band corresponds to the first CP type, and other frequency bands correspond to the second CP type.

[0117] For the cell type, for example, if the cell is a Non-Terrestrial Network (NTN), or non-NTN; or if the cell is Macro, Micro, etc., it corresponds to the first CP type; otherwise, it corresponds to the second CP type.

[0118] Optionally, in some embodiments, for the system deployment method, for example, for a system deployed in-band within the 5G system frequency band, one BWP supports one CP type. For a system deployed separately from the 5G system, one BWP supports multiple CP types.

[0119] Optionally, in some embodiments, for the BWP type, it is also possible to set a specific BWP to correspond to multiple CP types, and the terminal can determine which CP type it is based on other information.

[0120] Optionally, in some embodiments, for a carrier type, multiple CP types may also be set for a certain carrier. For example, an Scell corresponds to a BWP that can support multiple CP types, and the terminal can determine which CP type it is according to other information.

[0121] Optionally, in some embodiments, for a frequency band, a specific frequency band may also be set to correspond to a BWP that supports multiple CP types, and the terminal can determine which CP type it is according to other information.

[0122] Regarding the association relationship between the time interval from a control channel to a scheduled signal and the first rule and the second rule, for example, if the time interval from a PDCCH to a scheduled PDSCH is greater than or equal to a preset threshold, the CP type of the PDSCH is determined according to the first rule; if the time interval from the PDCCH to the scheduled PDSCH is less than the preset threshold, the CP type of the PDSCH is determined according to the second rule.

[0123] It should be noted that in the embodiments of the present application, the above carrier and BWP are different granularity definitions of a frequency domain resource unit. In other embodiments, other granularities may also be used to define the frequency domain resource unit, which is not further limited herein.

[0124] In the embodiments of the present application, since the specific rules of the predefined rules are clear, the CP parameters can be determined based on different rules, improving the flexibility of determining the CP parameters. For example, when multiple CP types are supported in a BWP, the CP parameters used for the current transmission can be determined through scheduling or configuration information, or predefined rules, etc., to reduce inter-symbol interference while improving the transmission efficiency.

[0125] Optionally, in some embodiments, the first rule includes: the CP parameters of the scheduled signal are determined based on the first configuration information or the second configuration information carried by the control channel;

[0126] The second rule includes: the CP parameters of the scheduled signal are determined based on information other than the first configuration information or the second configuration information carried by the control channel.

[0127] Optionally, in some embodiments, the information other than the first configuration information or the second configuration information carried by the control channel includes any one of the following:

[0128] Default CP parameters;

[0129] CP parameters of the previously received signal;

[0130] CP parameters of a time unit when the control channel was last detected.

[0131] In the embodiments of the present application, the first configuration information or the second configuration information that can be carried by the control channel. When the time interval from the control channel to the scheduled signal is greater than or equal to a preset threshold, the terminal can determine the CP parameter of the scheduled signal based on the first configuration information or the second configuration information carried by the control channel other than this, so as to ensure that the terminal has enough time to demodulate the first configuration information or the second configuration information; when the time interval from the control channel to the scheduled signal is less than the preset threshold, the terminal can determine the CP parameter of the scheduled signal based on the information other than the first configuration information or the second configuration information carried by the control channel. In this way, when the terminal does not have enough time to demodulate the first configuration information or the second configuration information, the determination method of the CP parameter is agreed, thus ensuring the reliability of communication.

[0132] Optionally, in some embodiments, the second configuration information is used to indicate at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, cell type, and the time interval from the control channel to the scheduled signal.

[0133] In the embodiments of the present application, the network-side device can dynamically configure the CP parameter through the second configuration information, thereby improving the flexibility of determining the CP parameter.

[0134] Optionally, in some embodiments, the second configuration information further includes at least one of the following: second time information and second frequency domain information;

[0135] The second time information is used to indicate the time associated with the CP parameter, and the second frequency domain information is used to indicate the frequency associated with the CP parameter.

[0136] In the embodiments of the present application, the above second configuration information may include a time unit - target parameter pattern, that is, the second configuration information configures the pattern or association relationship between the time unit and the target parameter, where the target parameters of different time units may be the same or different.

[0137] Optionally, the above second configuration information may include a frequency unit - target parameter pattern, that is, the second configuration information configures the pattern or association relationship between the frequency unit and the target parameter, where the target parameters of different frequency units may be the same or different.

[0138] Optionally, the above target parameters may be understood as at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, cell type, and time interval from the control channel to the scheduled signal. Since the second configuration information also includes second time information and second frequency domain information, corresponding target parameters (i.e., different CP parameters) can be set based on different time units and different frequencies, thereby further improving the flexibility of CP parameter determination.

[0139] Optionally, in some embodiments, the cyclic prefix CP parameter satisfies at least one of the following:

[0140] The effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information;

[0141] The effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information;

[0142] The effective time of the CP parameter includes the time units where the signal scheduled or configured by the first configuration information or the second configuration information is located.

[0143] In the embodiments of the present application, that the effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information can be understood as: the terminal can determine the time units to which the CP parameter applies based on the first time information or the second time information. It can also be understood as: the effective time of the CP parameter is all time units from the start of the effective time of the first configuration information or the second configuration information to the reception of new first configuration information or new second configuration information.

[0144] Optionally, when the cyclic prefix CP parameter satisfies the above two items, it can be understood that the effective time of the CP parameter is determined based on at least two of the above. For example, if the cyclic prefix CP parameter satisfies the first item (the effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information) and the second item (and the effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information), then it can be determined that the effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information, as well as the time units indicated by the first time information or the second time information, and within the time units associated with the first time information or the second time information, the CP parameter used for each time unit is determined based on the first time information or the second time information.

[0145] Optionally, in some embodiments, the method further includes:

[0146] The terminal sends a target CP type to the network-side device, where the target CP type includes at least one of the CP types supported by the terminal and the CP types preferred by the terminal;

[0147] Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency-domain resource sub-block type, frequency band, system deployment mode, and cell type.

[0148] In the embodiments of the present application, since the terminal reports the target CP type to the network-side device, it helps the network-side device determine the first configuration information and the second configuration information, ensuring that the configured CP parameters can better achieve transmission and improving the reliability of communication.

[0149] Optionally, when reporting the CP types supported by the terminal, at least two CP types may be included.

[0150] To better understand the present application, the following is illustrated by some examples.

[0151] Embodiment 1, the standard predefines multiple groups of CP parameters. For one or more of different terminal types, transceiver types, transmission modes, subcarrier spacings, waveforms, modulation and coding information, signal types, BWP types, carrier types, frequency-domain resource sub-block types, frequency bands, system deployment modes, and cell types, each group of CP parameters is defined respectively.

[0152] In one example, for different transceiver types, the standard predefines a group of CP parameters respectively. In a group of CP parameters, there may be one type of CP, or there may be multiple types of CP. For example, two transceiver types are defined (the first transceiver type corresponds to better time-frequency accuracy, and the second transceiver type corresponds to worse time-frequency accuracy). For each type, the standard predefines a table respectively. In each table, there may be one or more SCSs. For the same SCS, there may be one or more CP types. For example, for the first transceiver, when the SCS is 960KHz, NCP and ECP are supported. For the second transceiver, when the SCS is 960KHz, only ECP is supported. When the UE uses the first transceiver, it can determine whether to use NCP or ECP according to the parameters configured by the base station. When the UE uses the second transceiver, it can fixedly use NCP or ECP.

[0153] In one example, the standard predefines a table. However, in one row of the table, different CP parameters can be predefined for different types of transceiver types. Taking Table 3 as an example, the standard predefines CP parameters. Suppose that for transceiver type 1, the supported SCSs include 120KHz, 240KHz, 480KHz, 960KHz, and 1920KHz, and for transceiver type 2, the supported SCSs include 960KHz and 1920KHz. In the table, for the SCSs supported by both types of receivers, the CP parameters for various transceivers can be predefined respectively. For example, when the SCS is 960KHz. If the CP parameters are common to the two types of transceivers, only one set of parameters can be configured. For example, when the SCS is 1920KHz.

[0154] Optionally, for different SCSs, for the same type of CP (NCP or ECP), the overhead of the CP in one OFDM symbol is the same. Or, for different SCSs, for the same type of CP, the overhead of the CP in one OFDM symbol can be different, and then the number of OFDM symbols in one time slot or subframe also varies accordingly.

[0155] Optionally, for one or more of different terminal types, transceiver types, transmission modes, subcarrier spacings, waveforms, modulation and coding information, signal types, BWP types, carrier types, frequency-domain resource sub-block types, frequency bands, and system deployment methods, for the same type of CP, the overhead of the CP in one OFDM symbol can be different. For example, when the SCS in Table 3 is 1920KHz, it can be defined that the CP overhead of the ECP type of transceiver type 1 is less than that of the ECP type of transceiver type 2. Because the time precisions of these two transceivers are different, in the case where ECP is required for both, the length of the CP of transceiver type 2 still needs to be longer than that of the CP of transceiver type 1. Then the number of OFDM symbols in one time slot or subframe also varies accordingly. For example, for transceiver type 1, one time slot or subframe contains 13 OFDM symbols, and for transceiver type 2, one time slot or subframe contains 12 OFDM symbols.

[0156] Table 3:

[0157]

[0158] According to one implementation, the standard predefines a set of CP parameters. For one or more of different terminal types, transceiver types, transmission modes, subcarrier spacings, waveforms, modulation and coding information, signal types, BWP types, carrier types, frequency-domain resource sub-block types, frequency bands, and system deployment methods, some of the CP parameters in this set of CP parameters are defined as available respectively.

[0159] According to an example, the standard predefined table 4. Among them, different CP parameters (CP parameter 1, CP parameter 2, CP parameter 3, CP parameter 4) correspond to different types of CP (NCP or ECP), and for the same type of CP, different CP parameters correspond to different CP overheads. For example, for NCP, the CP overhead of CP parameter 3 is greater than that of CP parameter 2. Optionally, it is standard predefined that transceiver type 1 only supports CP parameter 1 and CP parameter 2, and transceiver type 2 only supports CP parameter 3 and CP parameter 4.

[0160] Table 4:

[0161] CP parameter Cyclic prefix CP parameter 1 Normal CP parameter 2 Normal, Extended. CP parameter 3 Normal, Extended CP parameter 4 Extended

[0162] Example 2: The control node (such as a base station) can display configured CP parameters, for example, configured CP type (NCP or ECP), or CP configuration index (such as CP parameter 1, CP parameter 2, CP parameter 3, or CP parameter 4 in Table 4). Optionally, for a CP type or CP configuration index, the length of the CP is predefined by the standard. As in the method of Example 1, for one or more of different terminal types, transceiver types, transmission modes, subcarrier spacings, waveforms, modulation and coding information, signal types, BWP types, carrier types, frequency-domain resource sub-block types, frequency bands, deployment methods, and cell types, for a CP type or CP configuration index, the length of the CP is the same, or for one or more of different terminal types, transceiver types, transmission modes, subcarrier spacings, waveforms, modulation and coding information, signal types, BWP types, carrier types, frequency-domain resource sub-block types, frequency bands, system deployment methods, and cell types, for a CP type or CP configuration index, the length of the CP can be different. Optionally, for a CP type or CP configuration index, the length of the CP is configurable, for example, it can be configured by the control node.

[0163] The control information for configuring the CP parameters (i.e., the first configuration information or the second configuration information) can be carried by semi-static or dynamic signaling, for example, RRC, MAC CE, or layer 1 signaling (L1 signaling).

[0164] The control information for configuring CP parameters may be configured for each frequency-domain resource unit separately. For example, it may be configured for each carrier or carrier group separately, or for each BWP or BWP group separately, or for each resource block group separately. For example, the information of CP may be configured when configuring the BWP. Only one CP is configured for one BWP. Alternatively, multiple CPs may be configured for one BWP. Optionally, if multiple CPs are configured for one BWP, the first CP and the second CP may be configured. If multiple CPs are configured for one BWP, for example, NCP and ECP are configured, or NCP with different CP overheads is configured, the terminal may determine the CP parameter of a time unit according to a predefined rule (such as the rule in Embodiment 3), or the terminal determines the CP parameter of a time unit according to other information (second configuration information) provided by the control node. The CP parameters of different time units may be different. For example, the network-side device configures multiple resource block groups (such as multiple RB sets, or RBGs, or frequency regions, or narrow bands), and each resource block group is configured with CP separately. For example, within one BWP, the network-side device configures 2 resource block groups and configures CPs with two lengths respectively. The delay characteristics of the signals transmitted by the network-side device in these two resource block groups may be different. For example, one resource block group is used for Single Frequency Network (SFN) transmission with a larger propagation delay, and one resource block group is used for non-SFN transmission with a smaller propagation delay.

[0165] Optionally, the control information for configuring CP parameters may be configured for each transmission mode separately, or for each transceiver type separately, or for each terminal type separately. For example, for a terminal that supports multiple transceiver types (such as a transceiver with relatively low time-frequency synchronization accuracy and a transceiver with relatively high time-frequency synchronization accuracy) or multiple transmission modes (such as a low-power consumption transmission mode or a normal power consumption transmission mode, such as a satellite communication NTN transmission mode or a terrestrial communication transmission mode, such as an SFN or non-SFN transmission mode), the network-side device may configure one CP for each transceiver type or transmission mode separately.

[0166] Optionally, the control information for configuring CP parameters may be configured for each subcarrier spacing separately, or for each waveform separately, or for each modulation and coding scheme or modulation and coding table separately, or for each channel / signature type (such as a reference signal or a data / control physical channel, such as a channel with a preamble or without a preamble) separately, or for each service type separately (such as URLLC or eMBB, XR or other services), or for each deployment scenario separately, or for each priority (Low priority or high priority) to configure one CP separately.

[0167] Optionally, the control information for configuring the CP parameters can be configured separately for each type of time unit. For example, a serving cell supports two types of time units, a first type of time unit and a second type of time unit. The delay characteristics of the signals transmitted in the first type of time unit and the second type of time unit are different. For example, the first type of time unit is mainly used for SFN transmission and has a relatively large propagation delay, while the second type of time unit is mainly used for non-SFN transmission and has a relatively small propagation delay. The network-side device can configure the CP for these two types of time units separately.

[0168] Optionally, the terminal determines the CP of a time unit according to at least one of the above methods. However, if a time unit is a specific time unit, the CP of this time unit is determined according to a predefined default rule. For example, the specific time unit is the time slot or subframe or half frame or frame in which the NCD-SSB (non-cell-define, NCD) is located. The predefined default rule is to use a predefined CP type or the first CP. If a time unit does not have corresponding CP configuration information (for example, the terminal does not receive any of the following CP configuration information applicable to this time unit), then a predefined CP type or the first CP is used.

[0169] Optionally, the control information for configuring the CP parameters can be carried in the DCI for scheduling the PDSCH / PUSCH. Optionally, if the time interval from the PDCCH to the scheduled PDSCH is greater than or equal to a predefined threshold, the CP of the PDSCH is determined according to the CP parameters indicated in the DCI of the PDCCH.

[0170] According to one implementation, if the time interval from the PDCCH to the scheduled PDSCH is less than a preset threshold, the UE does not expect the CP of the PDSCH indicated by the DCI to be different from the CP type of the PDCCH. That is, the terminal expects the CP of the PDSCH indicated by the DCI to be the same as the CP type of the PDCCH.

[0171] According to another implementation, if the time interval from the PDCCH to the scheduled PDSCH is less than a preset threshold, the UE determines the CP of the PDSCH according to a predefined rule. For example, the UE may assume that the CP type of the PDSCH is the same as the CP type of the PDCCH, or the UE may assume that the CP type of the PDSCH is a predefined CP type, or the UE may assume that the CP type of the PDSCH is the same as the CP type of the previously received PDSCH, or the UE may assume that the CP type of the PDSCH is the same as the CP type of a time unit (such as the latest slot) that has recently detected the PDCCH. In this case, the UE may ignore the CP parameter indicated in the DCI.

[0172] Optionally, only when the minimum value of the time interval from the PDCCH configured by the network-side device to the scheduled PDSCH is greater than or equal to the preset threshold, the network-side device may configure the CP parameter of the PDSCH indicated in the DCI. In this way, it is possible to avoid the UE blindly detecting the CP length of the PDSCH before demodulating the CP parameter in the DCI due to the short time interval from the PDCCH to the PDSCH.

[0173] Optionally, the control information for configuring the CP parameter may be carried in the configuration information for configuring the semi-static number. For example, it is carried in the configuration information for configuring the SPS PDSCH or CG PUSCH (for example, configured in each SPS PDSCH configuration), carried in the configuration information for configuring the periodic PUCCH, carried in the information for configuring the PUCCH resource, carried in the information for configuring the CSI-RS resource or CSI-RS resource set, carried in the configuration information for configuring the SRS resource or SRS resource set, carried in the configuration information for configuring the PDCCH (for example, carried in the configuration information for the search space or carried in the configuration information for the CORESET), carried in the configuration information for configuring the PRACH, or carried in the configuration information for configuring the SSB.

[0174] Optionally, the control information for configuring the CP parameters may include time information. For example, a time unit - CP type pattern is configured, and the CP type for each time unit may be different or the same. Table 5 gives an example. The base station configures time units 1, 2, 3, 4, and the corresponding CP type for each time unit. Among them, the start point and length of each time unit can be configured or determined according to predefined rules. For example, the base station configures multiple time units, the start point and length of each time unit, or the start point of the first time unit and the length of each time unit (assuming that the start point of the next time unit is the end position of the previous time unit). Or the base station configures the time period of the time unit - CP type pattern as P (the time offset can also be configured), the number of time units within one period is N, and N is 4, then the start point and length of each time unit can be determined according to the period, offset, and the number of time units N. The configured time unit - CP type pattern is applied periodically, or when no period is configured, it is only applicable to the indicated time units. According to another implementation manner of configuring the time unit - CP type pattern, the network - side device can configure patterns of multiple time unit types, and the CP corresponding to each time unit type is predefined by the standard or configured by the network - side device. By configuring the time unit - CP type pattern, appropriate CPs can be provided for different types of terminals, different types of transceivers, and signals with different performance requirements transmitted at different times. It can also provide appropriate CPs for the same type of terminal or transceiver according to the time - offset range at different times. For example, within the time unit of the time - frequency synchronization signal only, because the timing offset is small, a smaller CP can be used, and within the time unit far from the time - frequency synchronization signal, the timing offset is large, and a larger CP can be used.

[0175] Table 5:

[0176] Time unit 1 Time unit 2 Time unit 3 Time unit 4 NCP NCP ECP NCP

[0177] Optionally, the control information for configuring the CP parameters may include frequency - domain information. For example, a frequency unit - CP type pattern is configured, and the CP type for each frequency unit may be different or the same. The frequency - domain unit is at least one of a carrier, a carrier group, a BWP, a BWP group, a frequency - domain range, a resource - block set (RB set), and a resource - block group (RB group).

[0178] The control information for configuring the CP parameters may include time and frequency - domain information.

[0179] Optionally, the control information for configuring the CP parameters may not include time information. The applicable time of the configured CP parameters can be determined according to at least one of the following methods:

[0180] If the DCI that configures the CP parameter schedules the PDSCH, PUSCH, or PUCCH, the CP parameter indicated by the DCI applies at least to the time unit in which the scheduled PDSCH, PUSCH, or PUCCH is located. The time unit is the symbol in which the PDSCH, PUSCH, or PUCCH is located, or the sub-slot in which it is located, or the slot or a set of slots in which it is located, or the subframe or a set of subframes in which it is located, or the frame or a set of frames in which it is located.

[0181] If the DCI that configures the CP parameter does not schedule the PDSCH, PUSCH, or PUCCH, the CP parameter indicated by the DCI applies to the time units within a period of the search space in which the DCI is located. Alternatively, the CP parameter indicated by the DCI applies to the time units from when the current DCI starts to take effect until a new DCI starts to take effect.

[0182] If the CP parameter is carried in the configuration information for configuring a semi-static channel / signal, the configured CP parameter applies at least to the time unit in which the configured signal is located. The time unit is the symbol in which the signal is located, or the sub-slot in which it is located, or the slot or a set of slots in which it is located, or the subframe in which it is located, or a set of subframes or a set of subframes in which it is located, or the frame or a set of frames in which it is located.

[0183] The CP parameter indicated by the higher-layer signaling that configures the CP parameter applies to the time units from when the current higher-layer signaling starts to take effect until a new signaling for configuring the CP parameter starts to take effect.

[0184] In Embodiment 3, the control node (such as a base station) can display and configure multiple CP parameters, or the control node does not display the configured CP parameter, or the terminal has not received the displayed CP configuration. The terminal can determine the CP parameter according to a predefined rule. For example, if a BWP is configured with 2 types of CP (ECP and NCP), the terminal can determine which CP parameter to use in a time unit according to the predefined rule (assuming the CP type is determined, the CP length can be determined). Another example is that a BWP is configured with 1 type of NCP, but there are multiple CP overheads supported for the NCP standard. The terminal can determine which CP parameter (length) in the NCP to use in a time unit according to the predefined rule.

[0185] The predefined rule includes determining the CP length of a time unit according to one or more of the terminal type, transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, frequency-domain resource, system deployment mode, cell type, time unit type, and service type. Some examples are given below:

[0186] 1. Terminal type.

[0187] For example, a terminal that only supports a lower time precision or frequency domain precision can determine the CP type as the first CP type. A terminal that supports a higher time precision or frequency domain precision can determine the CP type as the second CP type. The CP type can be at least one of NCP and ECP. Further, for NCP, different CP overheads or lengths correspond to different CP types. For ECP, different CP overheads or lengths correspond to different CP types.

[0188] In one example, assume that in the same BWP, such as the initial BWP, different terminal types can be supported for access, but the time units where the SSB or SIB1 of different terminal types are located can be staggered (for example, different slots or subframes or frames). The terminal can determine the CP length corresponding to the SSB or SIB1 of this terminal type according to the terminal type.

[0189] 2. Transceiver type.

[0190] For example, two transceiver types are defined, and the achievable time precision or frequency domain precision is different. The base station can configure the transceiver type used by the terminal (or the type of time precision or frequency domain precision requirement), and the terminal can determine the CP type according to the configuration information.

[0191] In one example, assume that two types of CPs (such as NCP and ECP) are configured in a BWP. If the network side device configures the terminal to currently use a transceiver with a lower time precision or frequency domain precision, the terminal can determine the CP type as the first CP type (such as ECP). If the network side device configures the terminal to currently use a transceiver with a higher time precision or frequency domain precision, the terminal can determine the CP type as the second CP type (such as NCP).

[0192] In one example, assume that NCP is configured in a BWP. If the network side device configures the terminal to currently use a transceiver with a lower time precision or frequency domain precision, the terminal can determine the CP type as the first CP type (such as a type of NCP with a larger CP overhead). If the network side device configures the terminal to currently use a transceiver with a higher time precision or frequency domain precision, the terminal can determine the CP type as the second CP type (such as a type of NCP with a smaller CP overhead).

[0193] If a transceiver type supports multiple CP types, one currently used CP type can be determined according to other rules or configuration information, such as according to the subcarrier spacing.

[0194] 3. Transmission mode.

[0195] For example, multiple transmission modes are defined. Among them, transmission mode 1 is a low-power consumption transmission mode with relatively poor achievable synchronization accuracy, and transmission mode 2 is a normal-power consumption transmission mode with relatively good achievable synchronization accuracy. Then, different transmission modes are applicable to different CP lengths.

[0196] In one example, assume that two types of CPs (such as NCP and ECP) are configured in a BWP. If the network device configures the terminal to currently use transmission mode 1, the terminal can determine that the CP type is the first CP type (such as ECP). If the network device configures the terminal to currently use transmission mode 2, the terminal can determine that the CP type is the second CP type (such as NCP).

[0197] 4. Subcarrier spacing.

[0198] The larger the subcarrier spacing, the smaller the time length corresponding to the same number of sampling points. In an environment with the same channel delay, different subcarrier spacings are applicable to different CP lengths. For example, subcarrier spacing SCS1 only supports ECP, and subcarrier spacing SCS2 only supports NCP. Then, based on the SCS, the used CP can be uniquely determined.

[0199] 5. Waveform.

[0200] Different waveforms have different robustness to delay spread or time synchronization error. For example, the On-and-Off Keying (OOK) waveform has better robustness to delay spread or time synchronization error than the OFDM waveform. The applicable CP can be uniquely determined according to the waveform. For example, in a BWP, multiple waveforms are available, and this BWP is configured with multiple CPs. Then, based on the OFDM waveform, the first CP type can be determined to be used, and based on the OOK waveform, the second CP type can be determined to be used.

[0201] 6. Modulation and coding information.

[0202] Different modulation and coding methods have different robustness to inter-symbol interference. According to whether at least one of the modulation method and the coding rate is higher than a predefined threshold, the CP length can be determined.

[0203] For example, in a BWP, multiple CPs are configured. If the configured or scheduled modulation order is higher than the predefined or configured threshold, it corresponds to the first CP type, otherwise, it corresponds to the second CP type.

[0204] 7. Signal type.

[0205] Different signal types have different robustness to inter-symbol interference and different reception complexities. For specific reference signals, such as preamble, or PSS or SSS, the terminal can reduce the impact of time synchronization errors through time-domain sliding correlation. For other signals, such as OFDM-based PDCCH, PDSCH, or PUSCH, if the time-domain sliding correlation complexity is too high, demodulation is usually based only on downlink timing or uplink timing. Therefore, a relatively long CP is required to reduce the inter-symbol interference caused by timing errors. Then, the applicable CP type can be determined according to different signal types (including different signal structures, for example, whether there is a preamble).

[0206] For example, a signal with a specific channel structure, such as a signal in the form of preamble + payload, corresponds to the first CP type, and a signal without a preamble corresponds to the second CP type.

[0207] 8. Frequency-domain resources.

[0208] For example, determine the CP parameters according to the BWP. For example, the initial BWP corresponds to the first CP type, a specific active BWP corresponds to the second CP type, or corresponds to multiple CP types, and the terminal can determine which CP type it is according to other information. For example, further determine the currently used CP type according to the transmission mode.

[0209] For example, determine the CP parameters according to the resource block group. For example, the resource block group for unicast corresponds to the first CP type, and the resource block group for SFN broadcast or multicast corresponds to the second CP type.

[0210] For example, determine the CP parameters according to the carrier. For example, a carrier with a carrier bandwidth less than a predefined or configured threshold corresponds to the first CP type. Also, for example, the Pcell corresponds to a BWP that supports only one CP type, and the Scell corresponds to a BWP that supports multiple CP types, and the terminal can determine which CP type it is according to other information.

[0211] For example, determine the CP parameters according to the frequency band (Band). For example, a specific frequency band corresponds to a BWP that supports multiple CP types, and the terminal can determine which CP type it is according to other information. Other frequency bands correspond to a BWP that supports one CP type.

[0212] 9. System deployment method

[0213] For example, a system deployed in-band with the 5G system corresponds to a BWP that supports one CP type. A system deployed separately from the 5G system corresponds to a BWP that supports multiple CP types.

[0214] 10. Cell type

[0215] For example, the NTN cell corresponds to the first CP type, and the non-NTN cell corresponds to the second CP type.

[0216] 11. Time domain unit type.

[0217] For example, a serving cell supports multiple types of time units. A specific time unit type corresponds to a specific CP. Then, the terminal can determine the CP according to the time unit type.

[0218] 12. Service type.

[0219] For example, the terminal can support multiple service types. A specific service type corresponds to specific CP parameters. Then, the terminal can determine the CP according to the service type. For example, the network side device configures high priority (HP) or low priority (LP) services. The terminal can determine the CP parameters corresponding to this priority according to the indicated priority.

[0220] 13. Time interval from the control channel to the scheduled signal

[0221] For example, if there is no indication of the CP parameter of the PDSCH in the DCI of the PDCCH, and the time interval from the PDCCH to the scheduled PDSCH is greater than or equal to a preset threshold, the CP parameter of the PDSCH is determined according to the first rule. If there is no indication of the CP parameter of the PDSCH in the DCI of the PDCCH, and the time interval from the PDCCH to the scheduled PDSCH is less than the preset threshold, the CP parameter of the PDSCH is determined according to the second rule. For example, the first rule is that the UE assumes that the CP type of the PDSCH is the same as the CP type of the PDCCH, and the second rule is that the UE can assume that the CP type of the PDSCH is a predefined CP type, or the UE can assume that the CP type of the PDSCH is the same as the CP type of the previously received PDSCH, or the UE can assume that the CP type of the PDSCH is the same as the CP type of a time unit (such as the latest slot) that has detected the PDCCH recently.

[0222] Optionally, for the above embodiments, to avoid frequent switching of the CP length, it can be stipulated that the terminal can assume that within a time window, only one CP length is used. The length of the time window includes any of the following: one or more time slots or sub-time slots, one or more subframes, one or more frames. If the terminal causes multiple CP lengths to exist within the time window according to the predefined rules or configuration information in the embodiments, the terminal selects one CP length according to the predefined rules. For example, determine the CP parameters within the time window according to the CP parameters corresponding to the earliest transmission of time resources within the time window, or determine the CP parameters within the time window according to the CP parameters corresponding to the transmission with the highest priority within the time window, or determine the CP parameters within the time window according to the CP parameters corresponding to the transmission mode or transceiver type with the highest priority within the time window, or determine the CP parameters within the time window according to the CP parameters determined by the signaling with the highest priority (for example, the dynamic signaling priority is higher than the semi-static signaling, or the priority is configured in the signaling).

[0223] In Embodiment 4, the UE may report at least one of the supported CP types and the preferred CP types to assist the network-side device in configuring appropriate CP parameters. At least one of the supported CP types and the preferred CP types may be reported respectively based on at least one of the following parameters: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency-domain resource sub-block type, frequency band, system deployment mode, and cell type.

[0224] For example, if the UE supports 2 transceiver types, the UE may report at least one of the CP types supported by each transceiver type and the preferred CP types.

[0225] The UE may report the minimum delay for switching the CP type. For example, for different CP types, the UE may need to switch the position of the FFT or IFFT window, and this switching operation requires a certain processing time. Optionally, the UE reports other processing times or time delays, and can distinguish whether to switch the CP type and report the processing time separately. For example, the UE may report the delays for switching the transceiver but not the CP type and for switching both the transceiver and the CP type respectively.

[0226] Refer to Figure 3 , the embodiments of the present application further provide a transmission processing method, as Figure 3 shown, the transmission processing method includes:

[0227] Step 301, the network-side device sends target configuration information to the terminal, the target configuration information is used to determine the cyclic prefix CP parameters, and the target configuration information includes first configuration information or second configuration information;

[0228] Among them, the first configuration information is used to configure the CP parameters; the second configuration information is associated with the CP parameters.

[0229] Optionally, the first configuration information includes a CP type or a CP configuration index.

[0230] Optionally, the first configuration information further includes at least one of the following: first time information and first frequency domain information;

[0231] The first time information is used to indicate the time associated with the CP parameters, and the first frequency domain information is used to indicate the frequency associated with the CP parameters.

[0232] Optionally, the first configuration information is carried by at least one of the following:

[0233] Information for configuring the semi-static physical downlink shared channel PDSCH;

[0234] Information for configuring the authorized physical uplink shared channel PUSCH;

[0235] Information for configuring the periodic physical uplink control channel PUCCH;

[0236] Information for configuring PUCCH resources;

[0237] Information for configuring channel state information reference signal CSI-RS resources;

[0238] Information for configuring CSI-RS resource sets;

[0239] Information for configuring sounding reference signal SRS resources;

[0240] Information for configuring SRS resource sets;

[0241] Information for configuring the physical downlink control channel PDCCH;

[0242] Information for configuring the physical random access channel PRACH;

[0243] Information for configuring synchronization signal blocks.

[0244] Optionally, the information for configuring the PDCCH includes: configuration information of a search space or configuration information of a resource set.

[0245] Optionally, the first configuration information is configured for any one of the following: carrier, carrier group, bandwidth part BWP, BWP group, frequency domain resource sub-block, terminal type, subcarrier spacing configuration, waveform, modulation and coding scheme, modulation and coding table, signal type, service type, system deployment mode, time unit type, and priority.

[0246] Optionally, the second configuration information is used to indicate at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency-domain resource sub-block type, frequency band, system deployment mode, cell type, and time interval from the control channel to the scheduled signal.

[0247] Optionally, the second configuration information further includes at least one of the following: second time information and second frequency-domain information;

[0248] The second time information is used to indicate the time associated with the CP parameter, and the second frequency-domain information is used to indicate the frequency associated with the CP parameter.

[0249] Optionally, the cyclic prefix CP parameter satisfies at least one of the following:

[0250] The effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information;

[0251] The effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information;

[0252] The effective time of the CP parameter includes the time unit in which the signal scheduled or configured by the first configuration information or the second configuration information is located.

[0253] Optionally, the method further includes:

[0254] The network-side device receives a target CP type from the terminal, where the target CP type includes at least one of the CP types supported by the terminal and the CP types preferred by the terminal;

[0255] Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency-domain resource sub-block type, frequency band, system deployment mode, and cell type.

[0256] In the transmission processing method provided by the embodiments of the present application, the execution subject may be a transmission processing device. In the embodiments of the present application, taking the transmission processing device executing the transmission processing method as an example, the transmission processing device provided by the embodiments of the present application is described.

[0257] Referring to Figure 4 , the embodiments of the present application further provide a transmission processing device, as Figure 4 shown, the transmission processing device 400 includes:

[0258] Determination module 401, configured to determine cyclic prefix (CP) parameters according to target information;

[0259] Wherein, the target information includes any one of the following:

[0260] First configuration information sent by a network-side device, where the first configuration information is used to configure the CP parameters;

[0261] At least one of second configuration information and a predefined rule, where the second configuration information is associated with the CP parameters.

[0262] Optionally, the first configuration information includes a CP type or a CP configuration index.

[0263] Optionally, the first configuration information further includes at least one of the following: first time information and first frequency domain information;

[0264] The first time information is used to indicate the time associated with the CP parameters, and the first frequency domain information is used to indicate the frequency associated with the CP parameters.

[0265] Optionally, the first configuration information is carried by at least one of the following:

[0266] Information for configuring a semi-static physical downlink shared channel (PDSCH);

[0267] Information for configuring an authorized physical uplink shared channel (PUSCH);

[0268] Information for configuring a periodic physical uplink control channel (PUCCH);

[0269] Information for configuring PUCCH resources;

[0270] Information for configuring channel state information reference signal (CSI-RS) resources;

[0271] Information for configuring a CSI-RS resource set;

[0272] Information for configuring sounding reference signal (SRS) resources;

[0273] Information for configuring an SRS resource set;

[0274] Information for configuring a physical downlink control channel (PDCCH);

[0275] Information for configuring a physical random access channel (PRACH);

[0276] Information for configuring a synchronization signal block.

[0277] Optionally, the information for configuring the PDCCH includes: configuration information of a search space or configuration information of a resource set.

[0278] Optionally, the first configuration information is configured for any of the following: carrier, carrier group, bandwidth part BWP, BWP group, frequency-domain resource sub-block, terminal type, subcarrier spacing configuration, waveform, modulation and coding scheme, modulation and coding table, signal type, service type, system deployment mode, time unit type, and priority.

[0279] Optionally, the predefined rules include at least one of the following:

[0280] The association relationship between the terminal type and the CP parameter;

[0281] The association relationship between the transceiver type and the CP parameter;

[0282] The association relationship between the transmission mode and the CP parameter;

[0283] The association relationship between the subcarrier spacing and the CP parameter;

[0284] The association relationship between the waveform and the CP parameter;

[0285] The association relationship between the modulation and coding information and the CP parameter;

[0286] The association relationship between the signal type and the CP parameter;

[0287] The association relationship between the service type and the CP parameter;

[0288] The association relationship between the time unit type and the CP parameter;

[0289] The association relationship between the frequency-domain resource sub-block type and the CP parameter;

[0290] The association relationship between the BWP type and the CP parameter;

[0291] The association relationship between the carrier type and the CP parameter;

[0292] The association relationship between the frequency band and the CP parameter;

[0293] The association relationship between the system deployment mode and the CP parameter;

[0294] The association relationship between the cell type and the CP parameter;

[0295] The association relationship between the time interval from the control channel to the scheduled signal and the first rule and the second rule, where the control channel is used to carry the first configuration information or the second configuration information. Among them, when the time interval from the control channel to the scheduled signal is greater than or equal to the preset threshold, the CP parameter is determined based on the first rule; when the time interval from the control channel to the scheduled signal is less than the preset threshold, the CP parameter is determined based on the second rule.

[0296] Optionally, the first rule includes: the CP parameter of the scheduled signal is determined based on the first configuration information or the second configuration information carried by the control channel;

[0297] The second rule includes: the CP parameter of the scheduled signal is determined based on information other than the first configuration information or the second configuration information carried by the control channel.

[0298] Optionally, the information other than the first configuration information or the second configuration information carried by the control channel includes any one of the following:

[0299] Default CP parameter;

[0300] CP parameter of the previously received signal;

[0301] CP parameter of a time unit when the control channel was last detected.

[0302] Optionally, the second configuration information is used to indicate at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency-domain resource sub-block type, frequency band, system deployment mode, cell type, and time interval from the control channel to the scheduled signal.

[0303] Optionally, the second configuration information further includes at least one of the following: second time information and second frequency-domain information;

[0304] The second time information is used to indicate the time associated with the CP parameter, and the second frequency-domain information is used to indicate the frequency associated with the CP parameter.

[0305] Optionally, the cyclic prefix CP parameter satisfies at least one of the following:

[0306] The effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information;

[0307] The effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information;

[0308] The effective time of the CP parameter includes the time unit where the signal scheduled or configured by the first configuration information or the second configuration information is located.

[0309] Optionally, the transmission processing device 400 further includes:

[0310] A first sending module, configured to send a target CP type to a network-side device, where the target CP type includes at least one of a CP type supported by a terminal and a CP type preferred by the terminal;

[0311] Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency-domain resource sub-block type, frequency band, system deployment mode, and cell type.

[0312] Referring to Figure 5 , an embodiment of the present application further provides a transmission processing device, as Figure 5 shown, the transmission processing device 500 includes:

[0313] A second sending module 501, configured to send target configuration information to a terminal, where the target configuration information is used to determine cyclic prefix CP parameters, and the target configuration information includes first configuration information or second configuration information;

[0314] Wherein, the first configuration information is used to configure the CP parameters; the second configuration information is associated with the CP parameters.

[0315] Optionally, the first configuration information includes a CP type or a CP configuration index.

[0316] Optionally, the first configuration information further includes at least one of the following: first time information and first frequency-domain information;

[0317] The first time information is used to indicate the time associated with the CP parameters, and the first frequency-domain information is used to indicate the frequency associated with the CP parameters.

[0318] Optionally, the first configuration information is carried by at least one of the following:

[0319] Information for configuring a semi-static physical downlink shared channel PDSCH;

[0320] Information for configuring an authorized physical uplink shared channel PUSCH;

[0321] Information for configuring a periodic physical uplink control channel PUCCH;

[0322] Information for configuring PUCCH resources;

[0323] Information for configuring channel state information reference signal CSI-RS resources;

[0324] Information for configuring a CSI-RS resource set;

[0325] Information for configuring sounding reference signal SRS resources;

[0326] Configure the information of the SRS resource set;

[0327] Configure the information of the physical downlink control channel PDCCH;

[0328] Configure the information of the physical random access channel PRACH;

[0329] Configure the information of the synchronization signal block.

[0330] Optionally, the information for configuring the PDCCH includes: configuration information of the search space or configuration information of the resource set.

[0331] Optionally, the first configuration information is configured for any one of the following: carrier, carrier group, bandwidth part BWP, BWP group, frequency domain resource sub-block, terminal type, subcarrier spacing configuration, waveform, modulation and coding scheme, modulation and coding table, signal type, service type, system deployment mode, time unit type, and priority.

[0332] Optionally, the second configuration information is used to indicate at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, cell type, and time interval from the control channel to the scheduled signal.

[0333] Optionally, the second configuration information further includes at least one of the following: second time information and second frequency domain information;

[0334] The second time information is used to indicate the time associated with the CP parameter, and the second frequency domain information is used to indicate the frequency associated with the CP parameter.

[0335] Optionally, the cyclic prefix CP parameter satisfies at least one of the following:

[0336] The effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information;

[0337] The effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information;

[0338] The effective time of the CP parameter includes the time unit in which the signal scheduled or configured by the first configuration information or the second configuration information is located.

[0339] Optionally, the transmission processing device 500 further includes:

[0340] A receiving module, configured to receive a target CP type from the terminal, where the target CP type includes at least one of a CP type supported by the terminal and a CP type preferred by the terminal;

[0341] Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, and cell type.

[0342] The transmission processing device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0343] The transmission processing device provided in the embodiments of the present application can implement Figures 2 to 3 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described here again.

[0344] As Figure 6 shown, the embodiments of the present application further provide a communication device 600, including a processor 601 and a memory 602. A program or instruction that can run on the processor 601 is stored on the memory 602. When the program or instruction is executed by the processor 601, it implements each step of the above transmission processing method embodiments and can achieve the same technical effects. To avoid repetition, details are not described here again.

[0345] The embodiments of the present application further provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the steps in the method embodiments as Figure 2 shown. This terminal embodiment corresponds to the above terminal-side method embodiments. Each implementation process and implementation manner of the above method embodiments can be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 7 FIG. is a schematic hardware structure diagram of a terminal for implementing the embodiments of the present application.

[0346] The terminal 700 includes, but is not limited to, at least some components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0347] Those skilled in the art can understand that the terminal 700 may further include a power source (such as a battery) for powering each component. The power source can be logically connected to the processor 710 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0348] It should be understood that in the embodiments of the present application, the input unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042. The graphics processor 7041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, which will not be elaborated here.

[0349] In the embodiments of the present application, after the radio frequency unit 701 receives downlink data from the network-side device, it can be transmitted to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0350] The memory 709 can be used to store software programs or instructions as well as various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synch link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memories.

[0351] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modulation and demodulation processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modulation and demodulation processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modulation and demodulation processor may not be integrated into the processor 710 either.

[0352] Among them, the processor 710 is used to determine the cyclic prefix CP parameter according to the target information;

[0353] Among them, the target information includes any one of the following:

[0354] The first configuration information sent by the network-side device, and the first configuration information is used to configure the CP parameter;

[0355] At least one of the second configuration information and the predefined rules, where the second configuration information is associated with the CP parameter.

[0356] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the method embodiments on the terminal side and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0357] This embodiment of the present application further provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement as Figure 3 the steps shown in the method embodiment. This embodiment of the network-side device corresponds to the above-mentioned method embodiment of the network-side device. Each implementation process and implementation manner of the above method embodiment can be applied to this embodiment of the network-side device and can achieve the same technical effects.

[0358] Specifically, this embodiment of the present application further provides a network-side device. As Figure 8 shown, the network-side device 800 includes: an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804, and a memory 805. The antenna 801 is connected to the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802. After processing the received information, the radio frequency device 802 sends it out through the antenna 801.

[0359] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 803, and the baseband device 803 includes a baseband processor.

[0360] The baseband device 803 may include, for example, at least one baseband board, and a plurality of chips are provided on the baseband board. As Figure 8 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 805 through a bus interface to call the program in the memory 805 and execute the operations of the network-side device shown in the above method embodiments.

[0361] The network-side device may further include a network interface 806, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0362] Specifically, the network-side device 800 in this embodiment of the present application further includes: instructions or programs stored on the memory 805 and executable on the processor 804. The processor 804 calls the instructions or programs in the memory 805 to execute Figure 5The methods executed by the modules shown achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0363] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above transmission processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0364] Among them, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0365] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above transmission processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0366] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system chip, a chip system, or a system-on-chip, etc.

[0367] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the above transmission processing method embodiment and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0368] The embodiments of the present application further provide a wireless communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the transmission processing method on the terminal side as described above, and the network-side device can be used to execute the steps of the transmission processing method on the network device side as described above.

[0369] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0370] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software products are stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and include several instructions for causing a terminal or a network-side device to execute the methods described in the various embodiments of the present application.

[0371] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A transmission processing method, characterized in that, including: The terminal determines cyclic prefix (CP) parameters according to target information; wherein the target information includes any one of the following: first configuration information sent by a network side device, the first configuration information being used to configure the CP parameters; at least one of second configuration information and a predefined rule, the second configuration information being associated with the CP parameters.

2. The method according to claim 1, wherein The first configuration information includes a CP type or a CP configuration index.

3. The method according to claim 2, wherein The first configuration information further includes at least one of the following: first time information and first frequency domain information; The first time information is used to indicate the time associated with the CP parameters, and the first frequency domain information is used to indicate the frequency associated with the CP parameters.

4. The method according to any one of claims 1 to 3, characterized in that, The first configuration information is carried by at least one of the following: information for configuring a semi-static physical downlink shared channel (PDSCH); information for configuring an authorized physical uplink shared channel (PUSCH); information for configuring a periodic physical uplink control channel (PUCCH); information for configuring PUCCH resources; information for configuring channel state information reference signal (CSI-RS) resources; information for configuring a CSI-RS resource set; information for configuring sounding reference signal (SRS) resources; information for configuring an SRS resource set; information for configuring a physical downlink control channel (PDCCH); information for configuring a physical random access channel (PRACH); information for configuring a synchronization signal block.

5. The method according to claim 4, characterized in that The information for configuring the PDCCH includes: configuration information of a search space or configuration information of a resource set.

6. The method according to any one of claims 1 to 5, characterized in that The first configuration information is configured for any one of the following: carrier, carrier group, bandwidth part (BWP), BWP group, frequency domain resource sub-block, terminal type, subcarrier spacing configuration, waveform, modulation and coding scheme, modulation and coding table, signal type, service type, system deployment mode, time unit type, and priority.

7. The method according to any one of claims 1 to 6, characterized in that, The predefined rule includes at least one of the following: association relationship between terminal type and CP parameters; association relationship between transceiver type and CP parameters; association relationship between transmission mode and CP parameters; association relationship between subcarrier spacing and CP parameters; association relationship between waveform and CP parameters; association relationship between modulation and coding information and CP parameters; association relationship between signal type and CP parameters; association relationship between service type and CP parameters; association relationship between time unit type and CP parameters; association relationship between frequency domain resource sub-block type and CP parameters; association relationship between BWP type and CP parameters; association relationship between carrier type and CP parameters; association relationship between frequency band and CP parameters; association relationship between system deployment mode and CP parameters; association relationship between cell type and CP parameters; association relationship between the time interval from a control channel to a scheduled signal and a first rule and a second rule, the control channel being used to carry the first configuration information or the second configuration information, wherein when the time interval from the control channel to the scheduled signal is greater than or equal to a preset threshold, the CP parameters are determined based on the first rule; when the time interval from the control channel to the scheduled signal is less than the preset threshold, the CP parameters are determined based on the second rule.

8. The method according to claim 7, characterized in that The first rule includes: the CP parameter of the scheduled signal is determined based on the first configuration information or the second configuration information carried by the control channel; The second rule includes: the CP parameter of the scheduled signal is determined based on information other than the first configuration information or the second configuration information carried by the control channel.

9. The method according to claim 8, characterized in that, The information other than the first configuration information or the second configuration information carried by the control channel includes any one of the following: Default CP parameter; CP parameter of the previously received signal; CP parameter of a time unit when the control channel was last detected.

10. The method according to any one of claims 1 to 9, characterized in that, The second configuration information is used to indicate at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, cell type, and time interval from the control channel to the scheduled signal.

11. The method according to claim 10, wherein The second configuration information further includes at least one of the following: second time information and second frequency domain information; The second time information is used to indicate the time associated with the CP parameter, and the second frequency domain information is used to indicate the frequency associated with the CP parameter.

12. The method according to any one of claims 1 to 11, characterized in that, The cyclic prefix CP parameter satisfies at least one of the following: The effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information; The effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information; The effective time of the CP parameter includes the time unit in which the signal scheduled or configured by the first configuration information or the second configuration information is located.

13. The method according to any one of claims 1 to 12, characterized in that, The method further includes: The terminal sends a target CP type to the network-side device, and the target CP type includes at least one of the CP types supported by the terminal and the CP types preferred by the terminal; Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, and cell type.

14. A transmission processing method, characterized in that, Includes: The network-side device sends target configuration information to the terminal, the target configuration information is used to determine the cyclic prefix CP parameter, and the target configuration information includes the first configuration information or the second configuration information; Wherein, the first configuration information is used to configure the CP parameter; the second configuration information is associated with the CP parameter.

15. The method according to claim 14, wherein The first configuration information includes a CP type or a CP configuration index.

16. The method according to claim 15, wherein The first configuration information further includes at least one of the following: first time information and first frequency domain information; The first time information is used to indicate the time associated with the CP parameter, and the first frequency domain information is used to indicate the frequency associated with the CP parameter.

17. The method according to any one of claims 14 to 16, characterized in that The first configuration information is carried by at least one of the following: Information for configuring the semi-static physical downlink shared channel PDSCH; Information for configuring the grant physical uplink shared channel PUSCH; Information for configuring the periodic physical uplink control channel PUCCH; Information for configuring PUCCH resources; Information for configuring channel state information reference signal CSI-RS resources; Information for configuring CSI-RS resource sets; Information for configuring sounding reference signal SRS resources; Information for configuring SRS resource sets; Information for configuring physical downlink control channel PDCCH; Information for configuring physical random access channel PRACH; Information for configuring synchronization signal blocks.

18. The method according to claim 17, wherein The information for configuring PDCCH includes: configuration information of the search space or configuration information of the resource set.

19. The method according to any one of claims 14 to 18, characterized in that The first configuration information is configured for any of the following: carrier, carrier group, bandwidth part BWP, BWP group, frequency domain resource sub-block, terminal type, subcarrier spacing configuration, waveform, modulation and coding mode, modulation and coding table, signal type, service type, system deployment mode, time unit type, and priority.

20. The method according to any one of claims 14 to 19, characterized in that The second configuration information is used to indicate at least one of the following: transceiver type, transmission mode, subcarrier spacing, waveform, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, cell type, and time interval from the control channel to the scheduled signal.

21. The method according to claim 20, wherein, The second configuration information further includes at least one of the following: second time information and second frequency domain information; The second time information is used to indicate the time associated with the CP parameter, and the second frequency domain information is used to indicate the frequency associated with the CP parameter.

22. The method according to any one of claims 14 to 21, characterized in that, The cyclic prefix CP parameter satisfies at least one of the following: The effective time of the CP parameter is determined based on the first time information included in the first configuration information or the second time information included in the second configuration information; The effective time of the CP parameter includes all time units within the configuration period corresponding to the first configuration information or the second configuration information; The effective time of the CP parameter includes the time unit in which the signal scheduled or configured by the first configuration information or the second configuration information is located.

23. The method according to any one of claims 14 to 22, characterized in that The method further includes: The network side device receives a target CP type from the terminal, and the target CP type includes at least one of the CP types supported by the terminal and the CP types preferred by the terminal; Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, and cell type.

24. A transmission processing device, characterized in that, Includes: A determination module for determining a cyclic prefix CP parameter according to target information; Wherein, the target information includes any of the following: The first configuration information sent by the network side device, and the first configuration information is used to configure the CP parameter; At least one of the second configuration information and a predefined rule, and the second configuration information is associated with the CP parameter.

25. The device according to claim 24, characterized in that, Further includes: A first sending module for sending a target CP type to the network side device, and the target CP type includes at least one of the CP types supported by the terminal and the CP types preferred by the terminal; Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, and cell type.

26. A transmission processing device, characterized in that, Comprising: A second sending module, configured to send target configuration information to a terminal, where the target configuration information is used to determine cyclic prefix CP parameters, and the target configuration information includes first configuration information or second configuration information; Wherein, the first configuration information is used to configure the CP parameters; the second configuration information is associated with the CP parameters.

27. The device according to claim 26, characterized in that, Further comprising: A receiving module, configured to receive a target CP type from the terminal, where the target CP type includes at least one of a CP type supported by the terminal and a CP type preferred by the terminal; Wherein, the target CP type is associated with at least one of the following: transceiver type, transmission mode, subcarrier spacing, modulation and coding information, signal type, service type, time unit type, BWP type, carrier type, frequency domain resource sub-block type, frequency band, system deployment mode, and cell type.

28. A terminal, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the transmission processing method according to any one of claims 1 to 13 are implemented.

29. A network-side device, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the transmission processing method according to any one of claims 14 to 23 are implemented.

30. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the transmission processing method according to any one of claims 1 to 23 are implemented.

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