Information configuration method, terminal and network side device
By configuring a combination of multiple CP types and lengths in 6G mobile communication, inter-symbol interference and resource efficiency reduction caused by channel delay expansion and time-frequency bias synchronization are solved, and a flexible time unit format is realized to meet the needs of multiple terminals and scenarios.
Patent Information
- Application Number
- PCT/CN2025/072057
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-16
- Filing Date
- 2025-01-13
- Publication Date
- 2025-07-24
AI Technical Summary
In the existing 6G mobile communication technology, ECP is only supported when the SCS is 60KHz and one BWP only supports one CP type solution, which cannot meet the requirements of different transmission data, application scenarios or terminal types for CP type, resulting in channel delay expansion and time-frequency bias synchronization and reduced inter-symbol interference and resource efficiency.
Through the information configuration method of terminal and network-side devices, multiple combinations of CP types and CP lengths are allowed to be configured, which improves the flexibility of the time domain format of the time unit and meets the needs of different data transmission, application scenarios or terminal types.
It reduces inter-symbol interference caused by channel delay expansion and time-frequency bias synchronization, improves resource efficiency, and meets the communication needs of different terminal types and application scenarios.
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Figure CN2025072057_24072025_PF_FP_ABST
Abstract
Description
Information configuration method, terminal and network side equipment
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on January 16, 2024, with application number 202410068565.7 and invention name “Information Configuration Method, Terminal and Network Side Device”, the entire contents of which are incorporated by reference into this application. Technical Field
[0003] The present application relates to the field of communications, and more specifically, to an information configuration method, a terminal, and a network-side device. Background Art
[0004] In related technologies, the cyclic prefix (CP) supported by the New Radio (NR) system is divided into a normal cyclic prefix (NCP) and an extended cyclic prefix (ECP) to support different deployment environments.
[0005] Specifically, in frequency range 1 (FR1), when the subcarrier spacing (SCS) is 15KHz and 30KHz, the CP type supported by the NR system defaults to NCP. When the SCS is 60KHz, the CP types supported by the NR system include NCP and ECP. If the CP types supported by the NR system include NCP and ECP, when configuring the bandwidth part (BWP), the base station can configure the only CP type of this BWP to be NCP or ECP.
[0006] However, for sixth-generation (6G) mobile communication technology, the solution of supporting ECP only at 60 kHz SCS and only one CP type per BWP can no longer meet the CP type requirements of different transmission data, application scenarios, or terminal types. For example, for certain transmission data, application scenarios, and terminal types, the short ECP length may cause inter-symbol interference caused by channel delay spread or time-frequency missynchronization, or reduce resource efficiency. Summary of the Invention
[0007] The embodiments of the present application provide an information configuration method, a terminal, and a network-side device, which can improve the flexibility of the time domain format of the time unit, that is, it can meet the requirements of different transmission data, application scenarios, or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay expansion or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix.
[0008] In a first aspect, an information configuration method is provided, which is executed by a terminal, and the method includes:
[0009] The terminal receives first configuration information;
[0010] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0011] In a second aspect, an information configuration method is provided, which is performed by a network-side device, and the method includes:
[0012] The network side device sends first configuration information;
[0013] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0014] In a third aspect, an information configuration device is provided, comprising:
[0015] A receiving unit, configured to receive first configuration information;
[0016] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0017] In a fourth aspect, an information configuration device is provided, comprising:
[0018] A sending unit, configured to send first configuration information;
[0019] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0020] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be 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, a terminal is provided, including a processor and a communication interface, wherein the communication interface is configured to:
[0022] receiving first configuration information;
[0023] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0024] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.
[0025] In an eighth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is configured to:
[0026] Sending first configuration information;
[0027] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0028] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. 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.
[0029] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein 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.
[0030] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.
[0031] In a twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect.
[0032] In an embodiment of the present application, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination of the at least one first time unit type, and any one of the at least one first time unit types includes any one of the following: CP type or CP length. This is equivalent to the at least one first time unit being configured with the at least one time unit type, and any one of the at least one first time unit types is a type containing a CP type or a CP length. This can improve the flexibility of the time domain format of the at least one first time unit, that is, it can meet the requirements of different transmission data, application scenarios or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay extension or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0034] FIG1 is a schematic diagram of a system architecture provided in an embodiment of the present application.
[0035] Figure 2 is a schematic diagram of a 5G NR system frame structure provided in an embodiment of the present application.
[0036] FIG3 is a schematic diagram of a frame structure configuration process provided in an embodiment of the present application.
[0037] FIG4 is a schematic diagram of a base station autonomous transmission and reception sensing provided by an embodiment of the present application.
[0038] FIG5 is a schematic diagram of an embodiment of the present application showing that a multipath delay extension exceeds a CP length, resulting in inter-symbol interference.
[0039] FIG6 is a schematic diagram of a conflict between perception signal reception and communication signal transmission caused by an echo signal exceeding a CP length, provided by an embodiment of the present application.
[0040] FIG7 is a schematic flowchart of an information configuration method provided in an embodiment of the present application.
[0041] FIG8 is a configuration example of a time domain format provided in an embodiment of the present application.
[0042] FIG9 is a configuration example of another time domain format provided in an embodiment of the present application.
[0043] Figure 10 is an example of the configuration of the time domain format of a multi-type packet service provided in an embodiment of the present application.
[0044] FIG11 is an example of constructing N time slots using Y symbols provided in an embodiment of the present application.
[0045] FIG12 is a schematic block diagram of an information configuration device provided in an embodiment of the present application.
[0046] FIG13 is a schematic block diagram of another information configuration device provided in an embodiment of the present application.
[0047] FIG14 is a schematic block diagram of a communication device provided in an embodiment of the present application.
[0048] FIG15 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of the present application.
[0049] FIG16 is a schematic block diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0050] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.
[0051] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, 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 generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.
[0052] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.
[0053] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but 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 the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. thGeneration, 6G) communication system.
[0054] FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
[0055] As shown in FIG1 , the wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipborne equipment, pedestrian user equipment (PUE), smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, self-service kiosk, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.
[0056] The network side device 12 may include an access network device or a core network device.
[0057] Access network equipment may also be referred to as radio access network (RAN) equipment, radio access network functions, or radio access network units. Access network equipment may include base stations, wireless local area network (WLAN) access points (APs), or wireless fidelity (WiFi) nodes. 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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
[0058] To facilitate a better understanding of the embodiments of the present application, the technologies related to the present application are explained.
[0059] (1) Frame structure design in the 3rd Generation Partnership Project (3GPP) NR system.
[0060] In the 3GPP NR system, the smallest time unit is the Orthogonal Frequency Division Multiplexing (OFDM) symbol. As shown in Figure 2, the OFDM symbol consists of two parts: CP and signal. The time length of an OFDM symbol is N+M sampling point lengths, and the length of each sampling point is Tsf. The time length of the CP part is N sampling point lengths, and the time length of the OFDM symbol part that does not contain the CP is M sampling points. The CP is obtained by copying the last N sampling points of the OFDM symbol to the N sampling points at the beginning of the OFDM symbol. The CP length is different for different OFDM symbols. Taking 30KHz SCS as an example, the CP length of the first OFDM symbol of every 14 OFDM symbols is longer than the CP length of the other 13 OFDM symbols. In addition, the NR system supports normal CP and extended CP to support different deployment environments.
[0061] 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 of the OFDM symbol is the same, thereby ensuring the same transmission efficiency. For any SCS, for a specific OFDM symbol, the ratio of the number of sampling points in the first part NCP to the second part is 144:2048. If the first part is ECP, the ratio is 512:2048. For example, the number of sampling points in the first part NCP and the second part can be expressed as follows (1):
[0062] It can be seen that since the ratio of the first part to the second part does not change with the SCS, the duration of the CP part decreases as the SCS increases. In formula (1), κ = 64, which is the ratio of the time basic unit in the LTE system to the time basic unit in the NR system.
[0063] In NR systems, evaluation has shown that while the CP length decreases with increasing SCS, in FR1 scenarios, the NCP length is sufficient to reduce intersymbol interference when SCS = 15 kHz and 30 kHz. However, when SCS = 60 kHz, the NCP length is insufficient under certain channel conditions. Therefore, NCP and ECP are supported when SCS = 60 kHz. In FR2 and FR2-2 scenarios, due to the reduced coverage area, the use of analog beams significantly reduces multipath delay compared to FR1. Therefore, although the CP length decreases with increasing SCS, the NCP length remains sufficient.
[0064] Furthermore, for NR / LTE systems, the time and frequency domain offsets of the UE or base station caused by hardware must meet specific requirements. For example, the UE must meet carrier frequency offset (CFO) limits of no more than 0.1ppm, and the UE must regularly correct for this offset based on synchronization signals. Therefore, the length of the CP required to mitigate timing errors is essentially negligible.
[0065] Table 1
[0066] In the NR system, when the base station configures the BWP, it configures the unique CP type (NCP or ECP) of this BWP. For example, the base station can configure the BWP through the following signaling of the BWP information element:
[0067] (2) Frame structure configuration in 3GPP NR system.
[0068] In NR, the resource configuration structure is based on time slots, which makes the configuration more flexible. As shown in Figure 3, dynamic time slot format adjustment can be achieved. The specific configuration process is as follows:
[0069] ① First, perform cell-level semi-static configuration, that is, cell-specific RRC configuration.
[0070] The upper layer provides the parameter TDD-UL-DL-ConfigurationCommon to determine the timeslot configuration. This parameter includes reference subcarrier spacing (referenceSubcarrierSpacing) and pattern1, which in turn contains the following information:
[0071] Time slot configuration period (dl-UL-TransmissionPeriodicity);
[0072] Number of downlink slots (nrofDownlinkSlots);
[0073] Number of downlink symbols (nrofDownlinkSymbols);
[0074] Number of uplink timeslots (nrofUplinkSlots);
[0075] Number of uplink symbols (nrofUplinkSymbols).
[0076] The number of time slots in a configuration period can be determined by referring to the subcarrier spacing and the time slot configuration period. The first nrofDownlinkSlots consecutive time slots are downlink time slots, followed by nrofDownlinkSymbols downlink symbols, and finally nrofUplinkSlots consecutive time slots are uplink time slots. The last Usym OFDM symbols adjacent to the uplink time slots are uplink symbols. The remaining symbols in a configuration period are flexible symbols X.
[0077] If both pattern1 and pattern2 are given as parameters, two different time slot formats can be configured consecutively. The parameter format in pattern2 is similar to that in pattern1.
[0078] ② Perform cell-level dedicated configuration, namely UE-specific RRC configuration.
[0079] If higher layers configure the Time Division Duplex Uplink Downlink Dedicated (TDD-UL-DL-ConfigDedicated) configuration and the TDD-UL-DL-ConfigurationCommon parameter is configured with "Flexible OFDM" symbols or timeslots, the flexible symbols are rewritten as uplink or downlink based on the slot index and symbol configuration provided by TDD-UL-DL-ConfigDedicated. The reference subcarrier spacing (SCS) configuration in (2) is the same as in (1).
[0080] ③ Dynamic downlink control information (DCI) uplink and downlink configuration.
[0081] If the higher layer has configured the SFI (slot format indicator) related configuration and the UE receives DCI2_0 in the PDCCH, the time slot configuration indicated in the DCI is adopted, or it is directly implemented through the uplink and downlink data scheduling of DCI format 0-0 0-1 1-0 1-1. DCI format 2-0 is specifically used as a time slot format indication (SFI). Starting from the receipt of DCI format 2-0, the Physical Downlink Control Channel (PDCCH) monitoring period (monitoring period) of time slots are continuously configured according to the SFI indication in this DCI. The maximum number of formats supported by a single time slot is 256, and the standardized formats are 56. You can directly refer to the protocol TS 38.213 Table 11.1.1-1. The following is a part of the table:
[0082] Table 2
[0083] If there is a conflict between the above situations, the coverage rules are as follows: the uplink and downlink configured in ① cannot be changed, and the flexible symbols can be changed by ② or ③; the uplink and downlink configured in ② can be changed by ③.
[0084] (3) Scenarios where the normal cyclic prefix cannot meet the requirements.
[0085] Future narrowband 5G (B5G) and 6G wireless communication systems are expected to provide a variety of high-precision sensing services, such as indoor positioning for robot navigation, Wi-Fi sensing for smart homes, and radar sensing for self-driving cars. Sensing and communication systems are usually designed separately and occupy different frequency bands. Integrated Sensing And Communication (ISAC) enables sensing and communication systems to share the same frequency band and hardware, improve frequency efficiency and reduce hardware costs. ISAC will become a key technology for future wireless communication systems to support many important application scenarios. ISAC has aroused great research interest and attention in academia and industry. According to the difference between the sending node and the receiving node of the perception signal, as shown in Figure 4, it is divided into 6 basic perception methods, including:
[0086] 1. Base station self-transmitting and self-receiving sensing: Base station A sends a sensing signal and performs sensing measurement by receiving the sensing signal echo.
[0087] 2. Inter-base station air interface perception: Base station B receives the perception signal sent by base station A and performs perception measurements.
[0088] 3. Uplink air interface perception: Base station A receives the perception signal sent by terminal A and performs perception measurement.
[0089] 4. Downlink air interface perception: Terminal B receives the perception signal sent by base station B and performs perception measurement.
[0090] 5. Terminal self-transmitting and self-receiving perception: Terminal A sends a perception signal and performs perception measurement by receiving the perception signal echo.
[0091] 6. Sidelink perception between terminals: Terminal B receives the perception signal sent by terminal A and performs perception measurements.
[0092] In the 5G NR system, the cyclic prefix (CP) is introduced to address inter-symbol interference (ISI) and inter-channel interference (ICI) caused by multipath delay spread exceeding the CP. Taking the base station self-transmitting and self-receiving sensing mode shown in Figure 4 as an example, the maximum sensing distance corresponding to the sensing signal using NCP and ECP is shown in Table 3:
[0093] Table 3
[0094] As shown in Figure 5, due to the varying distances of reflecting objects, multipath delay spread exceeding the CP when detecting distant targets can cause ISI and ICI interference between sensing signals. As shown in Figure 6, multipath delay spread exceeding the CP when detecting distant targets can lead to conflicts between sensing signal reception and communication signal transmission. This shows that transmitting sensing signals based on NCP severely limits sensing coverage, affects sensing accuracy, and increases site deployment costs.
[0095] Furthermore, in 5G non-terrestrial network (NTN) scenarios, burst signal timing deviations are large, exceeding the cyclic prefix (CP) length. This can lead to inaccurate synchronization and performance loss. (At a satellite altitude of 600 km, high-speed drift within the air interface transmission delay results in a timing deviation of approximately 1.5 μs, while the 120 kHz subcarrier CP length is only 0.59 μs.)
[0096] (4) One flexible serving cell.
[0097] Sub-3GHz spectrum has advantages such as low penetration loss and plays an important role in cellular network deployment due to its good coverage. On the other hand, compared with the C-band, the Sub-3GHz spectrum is allocated to IMT in a fragmented manner, and the bandwidth of each spectrum block is relatively narrow due to competition among mobile operators. On the other hand, almost all operators around the world own multiple Sub-3GHz bands (such as 700MHz, 800MHz, 900MHz, 1.4GHz, 1.8GHz, 2.1GHz, 2.3GHz or 2.6GHz bands). If these discontinuous spectrums can be effectively aggregated to form a "single" flexible service cell with considerable bandwidth, all operators can benefit.
[0098] Compared to LTE, NR provides significant capacity and experience advantages by using broadband communication and massive MIMO. Specifically, current applications that require high-throughput communication are in urgent need of wide bandwidth. Therefore, broadband operation on these discontinuous sub-3GHz spectrums will be key to meeting the growing ToB and ToC requirements in the future. Therefore, a potential solution is a flexible serving cell, which can contain fragmented spectrum resources, with the aim of efficiently and flexibly utilizing these fragmented continuous or discontinuous spectrums.
[0099] In New Radio (NR) / Long Term Evolution (LTE) systems, various types of user terminals supporting Orthogonal Frequency Division Multiplexing (OFDM) transmission, such as standard User Equipment (UE), Narrowband Internet of Things (NB-IoT) UE, or Reduced Capability (Redcap) UE, must meet the same Carrier Frequency Offset (CFO) requirement of no more than 0.1ppm. Therefore, all UEs in the same scenario require only the same CP length. However, in sixth-generation (6G) mobile communication technologies, there may be multiple types of terminals, such as those supporting lower power consumption. Such terminals often have reduced hardware complexity and power consumption, resulting in reduced performance. For example, the achievable CFO can be relaxed to 10ppm or 20ppm. If there is only one CP length, it may not meet the requirements of different terminal types, potentially affecting system performance and coverage.
[0100] In addition, with the further popularization of communication networks and the continuous expansion of application scenarios, new scenarios or requirements may emerge. For example, in the integrated synaesthesia scenario, the base station needs an extended cyclic prefix (ECP) when performing self-transmitting and self-receiving sensing to achieve a larger sensing range and reduce interference from communication signals on sensing. During communication, a normal cyclic prefix (NCP) is also required to improve spectrum efficiency. In ultra-high-speed mobile communication scenarios, which may involve high-speed mobile devices such as high-speed trains and unmanned vehicles, different types of cyclic prefixes are also needed to meet synchronization and estimation requirements at higher speeds. In massive machine type communication (MMTC) scenarios, low-latency and high-reliability communication requirements must be met between a large number of devices. This requires different types of cyclic prefixes to improve spectrum efficiency and channel capacity, and to meet low-latency and high-reliability requirements. In non-terrestrial network (NTN) scenarios, the cell radius is large, and UEs located at different locations within the cell may experience different channel delays. Different propagation delays also require different types of cyclic prefixes. When different types of user terminals exist in the system at the same time, as well as different application scenarios such as communication and perception, a flexible resource structure is required to meet different needs while ensuring system resource efficiency.
[0101] In view of this, an embodiment of the present application provides an information configuration method that can improve the flexibility of the time domain format of the time unit, that is, it can meet the requirements of different transmission data, application scenarios or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay expansion or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix.
[0102] The information configuration method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.
[0103] FIG7 is a schematic flowchart of an information configuration method 200 according to an embodiment of the present application.
[0104] As shown in FIG7 , the information configuration method 200 may include at least part of the following contents:
[0105] S210, the terminal receives first configuration information;
[0106] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0107] Exemplarily, the at least one first time unit and the at least one first time unit type may correspond one to one, many to one, or one to many.
[0108] Exemplarily, any one of the first time unit types includes a CP type and a type indicating a transmission direction. The CP type may be NCP or TCP, or may be a newly defined CP type based on a CP length, with different CP types corresponding to different CP lengths. The transmission direction includes an uplink direction, a downlink direction, or a flexible direction. For example, any one of the first time unit types may be downlink CP type 1, uplink CP type 1, or flexible CP type 1.
[0109] Exemplarily, any one of the first time unit types includes a CP length and a type indicating a transmission direction. The CP length may include a length corresponding to NCP or TCP, or the CP type may be a newly defined length. The transmission direction includes an uplink direction, a downlink direction, or a flexible direction. For example, any one of the first time unit types may include a downlink CP length of 1, an uplink CP length of 1, or a flexible CP length of 1.
[0110] In an embodiment of the present application, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination of the at least one first time unit type, and any one of the at least one first time unit types includes any one of the following: CP type or CP length. This is equivalent to the at least one first time unit being configured with the at least one time unit type, and any one of the at least one first time unit types is a type containing a CP type or a CP length. This can improve the flexibility of the time domain format of the at least one first time unit, that is, it can meet the requirements of different transmission data, application scenarios or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay extension or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix.
[0111] In some embodiments, the first configuration information includes first indication information for indicating the type of any one of the first time units, and the first indication information includes at least one of the following:
[0112] The CP type;
[0113] An index of the CP type;
[0114] The CP length;
[0115] at least one parameter for determining the CP length;
[0116] Transmission direction.
[0117] Exemplarily, the first indication information may indicate any one of the first time unit types through the CP type (or the index of the CP type) and the transmission direction.
[0118] Exemplarily, the first indication information may indicate the arbitrary first time unit type through the CP length (or the at least one parameter) and the transmission direction.
[0119] In this embodiment, by introducing the first indication information, the flexibility of configuring any one of the time unit types can be improved.
[0120] In some embodiments, when the first indication information includes the CP type or the index of the CP type, the CP length or the at least one parameter is agreed upon by a protocol.
[0121] In other words, if the first indication information indicates any one of the first time unit types through the CP type (or the index of the CP type) and the transmission direction, the length or the at least one parameter can be agreed upon through a protocol.
[0122] In some embodiments, when the first indication information includes the CP type or the index of the CP type, before S210, the method 200 further includes:
[0123] The terminal receives second configuration information, where the second configuration information includes at least one of the following:
[0124] the number of the at least one CP configuration;
[0125] the at least one CP configuration;
[0126] The CP length or the at least one parameter is obtained from a target CP configuration, and the target CP configuration is a CP configuration including the CP type or the index of the CP type in the at least one CP configuration.
[0127] In other words, if the first indication information indicates any one of the first time unit types through the CP type (or the index of the CP type) and the transmission direction, the CP length or the at least one parameter is obtained from the target CP configuration.
[0128] In some embodiments, different CP configurations in the at least one CP configuration include different CP types or CP lengths.
[0129] In other words, different CP types in the at least one CP configuration may be used to configure different CP types or different CP lengths.
[0130] Exemplarily, the terminal first receives the at least one CP configuration, and then receives the first configuration information, where the first configuration information includes the first indication information, and the first indication information indicates the arbitrary first time unit type by using the CP type (or the index of the CP type) and the transmission direction. In this case, the CP length or the at least one parameter is obtained from the target CP configuration in the at least one CP configuration.
[0131] In some embodiments, the at least one parameter includes at least one of the following:
[0132] The values of the parameters in the calculation formula for determining the CP length;
[0133] The ratio of the CP length to the first length, wherein the first length includes at least one of the following: a signal length, a length of a first time unit in the at least one first time unit, and a length of a second time unit to which the at least one first time unit belongs.
[0134] Exemplarily, the calculation formula for determining the CP length is agreed upon through a protocol.
[0135] Exemplarily, for any one of the first time unit types, the signal length is the length of any one of the first time units excluding the CP length.
[0136] In some embodiments, the first configuration information includes second indication information, the second indication information is used to indicate a first pattern among multiple patterns, and the first pattern is used to indicate a combination of the at least one first time unit type in the second time unit to which the at least one first time unit belongs.
[0137] In other words, the plurality of patterns are patterns with the second time unit as the granularity.
[0138] Exemplarily, the terminal determines at least one first time unit type corresponding to the at least one first time unit through the first indication information in the first configuration information, and then determines the combination manner of the at least one first time unit type in the second time unit to which the at least one first time unit belongs through the first pattern indicated by the second indication information in the first configuration information; based on this, the terminal can determine the time domain format of the at least one first time unit based on the first configuration information, that is, it can determine the first time unit type corresponding to each first time unit, that is, it can determine the transmission direction corresponding to each first time unit and the CP type or CP length corresponding to each first time unit.
[0139] In this embodiment, by introducing the second indication information, not only the flexibility of configuring the combination of the at least one time unit type can be guaranteed, but also the signaling overhead introduced by configuring the combination of the at least one first time unit type can be controlled.
[0140] In some embodiments, the plurality of patterns are agreed upon through a protocol, or; before S210, the method 200 further includes:
[0141] The terminal receives configuration information of the multiple patterns.
[0142] Exemplarily, the terminal first receives the configuration information of the multiple patterns, and then receives the first configuration information, and based on the second indication information in the first configuration information, the second indication information is used to indicate the first pattern among the multiple patterns. Thus, the terminal can determine the combination method indicated by the first pattern as the combination method of the at least one first time unit type in the second time unit to which the at least one first time unit belongs.
[0143] In some embodiments, the first configuration information includes at least one of the following:
[0144] a quantity of the at least one first time unit type;
[0145] a starting position of a first time unit corresponding to any one of the first time unit types;
[0146] the number or duration of first time units corresponding to any one of the first time unit types;
[0147] Indication information used to indicate the frequency domain unit corresponding to the at least one first time unit type.
[0148] Exemplarily, the terminal may determine a combination mode of at least one first time unit type corresponding to the at least one first time unit based on at least one of the following:
[0149] a quantity of the at least one first time unit type;
[0150] a starting position of a first time unit corresponding to any one of the first time unit types;
[0151] the number or duration of first time units corresponding to any one of the first time unit types;
[0152] Indication information used to indicate the frequency domain unit corresponding to the at least one first time unit type.
[0153] In this embodiment, by defining the content format of the first configuration information, not only can the configuration of the combination mode of the at least one first time unit type be achieved, but also the flexibility of configuring the combination mode of the at least one first time unit type can be ensured.
[0154] It should be noted that, for the configuration information of any one of the multiple patterns mentioned above, the format of its specific content may be the same as the format of the configuration information used to configure the first time unit type in the first configuration information.
[0155] For example, the configuration information of any one of the multiple patterns may include at least one of the following:
[0156] the number of the first time unit type corresponding to any one of the patterns;
[0157] a starting position of a first time unit corresponding to any one of the first time unit types;
[0158] the number or duration of first time units corresponding to any one of the first time unit types;
[0159] The indication information is used to indicate the frequency domain unit corresponding to the first time unit type in the first time unit type corresponding to the any one pattern.
[0160] In some embodiments, the S210 includes:
[0161] The terminal receives third configuration information;
[0162] Among them, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, a combination method of the at least one second time unit type, the at least one second time unit includes the second time unit to which the at least one first time unit belongs, and the first configuration information is the configuration information of any one second time unit type among the at least one second time unit type.
[0163] Exemplarily, the at least one second time unit and the at least one second time unit type may correspond one to one, many to one, or one to many.
[0164] Exemplarily, any one of the second time unit types includes one or more first time unit types.
[0165] Exemplarily, the at least one second time unit includes the second time unit to which the at least one first time unit belongs. Accordingly, among the at least one second time unit type, the second time unit type corresponding to the second time unit to which the at least one first time unit belongs includes: at least one first time unit type corresponding to the at least one first time unit.
[0166] In this embodiment, by introducing the third configuration information, the time domain format can be configured with the at least one second time unit as the granularity, which not only ensures the flexibility of configuring the time domain format, but also controls the signaling overhead introduced by configuring the time domain format.
[0167] In some embodiments, the third configuration information further includes at least one of the following:
[0168] a configuration period of the second time unit;
[0169] the number of the at least one second time unit type;
[0170] a starting position of the second time unit corresponding to any one of the second time unit types;
[0171] the number or duration of the second time units corresponding to any one of the second time unit types;
[0172] Indication information used to indicate the frequency domain unit corresponding to the at least one second time unit type.
[0173] Exemplarily, the number of the second time units in the configuration period of the second time unit is equal to the number of the at least one second time unit.
[0174] Exemplarily, the terminal may determine a combination mode of at least one second time unit type corresponding to at least one second time unit based on at least one of the following:
[0175] a configuration period of the second time unit;
[0176] the number of the at least one second time unit type;
[0177] a starting position of the second time unit corresponding to any one of the second time unit types;
[0178] the number or duration of the second time units corresponding to any one of the second time unit types;
[0179] Indication information used to indicate the frequency domain unit corresponding to the at least one second time unit type.
[0180] In this embodiment, by defining the content format of the first configuration information, not only can the configuration of the combination mode of the at least one second time unit type be achieved, but also the flexibility of configuring the combination mode of the at least one second time unit type can be ensured.
[0181] In some embodiments, different second time unit types in the at least one second time unit type have different corresponding first time unit types, different numbers of first time unit types, and different combinations of first time unit types.
[0182] Exemplarily, different second time unit types in the at least one second time unit type correspond to different first time unit types, which can be understood as: different second time unit types in the at least one second time unit type correspond to different first time unit types partially different.
[0183] For example, the first time unit type corresponding to the second time unit type 1 in the at least one second time unit type includes the first time unit type 1 and the first time unit type 2, and the first time unit type corresponding to the second time unit type 2 in the at least one second time unit type includes the first time unit type 2 and the first time unit type 3. That is, the first time unit type corresponding to the second time unit type 1 and the first time unit type corresponding to the second time unit type 2 are partially different.
[0184] In some embodiments, when there are remaining time units that are not configured with the first time unit type in the second time unit to which the at least one first time unit belongs or in the configuration period of the second time unit to which it belongs, the remaining time units are set to a flexible type, or the remaining time units are set to zero.
[0185] Exemplarily, if the actual length of the at least one first time unit is less than the length of the reference second time unit occupied by the at least one first time unit, then the second time unit to which the at least one first time unit belongs or the configuration period of the second time unit to which it belongs have remaining time units that are not configured with the first time unit type, and the length of the reference time unit is determined based on the reference subcarrier spacing and the reference CP type. The reference subcarrier spacing or the reference CP type may be configured by the network or agreed upon by a protocol.
[0186] In this embodiment, the remaining time unit is set to a flexible type, or the remaining time unit is set to zero, which can ensure that the second time unit to which the at least one first time unit belongs can be aligned with the reference second time unit, ensuring the alignment of the second time units of different SCSs, and thus reducing the interference caused by the misalignment of the second time units of different SCSs.
[0187] In some embodiments, the remaining time unit is a time unit located at the start position or the end position of the third time unit and having a length of the second length;
[0188] The third time unit includes at least one of the following: any one of the at least one first time unit, a first time unit corresponding to the type of the any one first time unit, and a second time unit to which the at least one first time unit belongs;
[0189] The second length is determined according to the length of the third time unit and the length of a reference time unit, and the length of the reference time unit is determined based on a reference subcarrier spacing and a reference CP type.
[0190] Exemplarily, the third time unit is any one of the at least one first time unit, which is equivalent to taking each first time unit as the granularity, and the remaining time units are set to flexible types, or the remaining time units are set to zero.
[0191] Exemplarily, the third time unit is the first time unit corresponding to any one of the first time unit types, which is equivalent to taking the first time unit corresponding to each first time unit type as the granularity, and the remaining time units are set to flexible types, or the remaining time units are set to zero.
[0192] Exemplarily, the third time unit is the second time unit to which the at least one first time unit belongs, which is equivalent to setting the remaining time units to a flexible type or setting the remaining time units to zero, with the second time unit to which the at least one first time unit belongs as the granularity.
[0193] Exemplarily, the reference time unit may be a time unit occupied by the third time unit and determined by the reference subcarrier spacing and the reference CP.
[0194] Exemplarily, the reference subcarrier spacing or the reference CP type may be configured by the network or agreed upon by a protocol.
[0195] In this embodiment, when the third time unit includes any one of the at least one first time unit, the flexibility of the time domain boundary alignment can be improved; the third time unit includes the first time unit corresponding to the type of any one of the first time units or the second time unit to which the at least one first time unit belongs, which can not only ensure the alignment of the time domain boundary, but also control the number of alignments, thereby improving communication efficiency.
[0196] In some embodiments, the second length is a difference between a length of the third time unit and a length of a reference time unit occupied by the third time unit.
[0197] In other words, the second length is the difference between the length of the third time unit and the following time unit: the time unit occupied by the third time unit and determined by the reference subcarrier spacing and the reference CP.
[0198] Exemplarily, the second length is a positive integer.
[0199] In some embodiments, different first time unit types in the at least one first time unit type correspond to different frequency domain units.
[0200] Exemplarily, different first time unit types in the at least one first time unit type may refer to first time unit types with different CP types or CP lengths. That is, first time unit types with different CP types or CP lengths in the at least one first time unit type correspond to different frequency domain units.
[0201] In this embodiment, different first time unit types in the at least one first time unit type correspond to different frequency domain units, which is equivalent to that the time domain format configuration of the at least one first time unit can be applied to one or more frequency domain units, for example, the applied frequency domain unit or its index can be indicated in the first configuration information. Optionally, when applied to multiple frequency domain units, different frequency domain units can correspond to different first time unit types, and the frequency domain unit or its index applied to each first time unit type can be indicated in the first configuration information. Of course, the terminal can also determine the applied frequency domain unit based on any one of the first time unit types, for example, frequency domain unit 1 can only be used for DL-ECP.
[0202] In some embodiments, the frequency domain unit includes at least one of the following: a frequency band, a carrier, a sub-band, and a BWP.
[0203] Exemplarily, the frequency domain unit is a set of continuous frequency domain resources, which can be a frequency band, carrier, sub-band, BWP, etc. The size of each frequency domain unit can be the same or different, and different frequency domain units can be discontinuous. A cell is composed of at least one frequency domain unit. For example, a cell is composed of four frequency domain units, and the sizes of these four frequency domain units are 3MHz, 10MHz, 5MHz, and 5MHz respectively.
[0204] In some embodiments, the method 200 further includes:
[0205] The terminal performs at least one of the following:
[0206] When the priorities of multiple configuration information including the first configuration information are the same and the time domain positions indicated by different configuration information do not overlap, the terminal determines, based on the multiple configuration information, a first time unit type corresponding to any one of the at least one first time unit;
[0207] In a case where the priorities of the multiple configuration information are the same and the time domain positions indicated by different configuration information overlap, the terminal reconfigures the first time unit type corresponding to the overlapping first time unit based on the last received configuration information among the multiple configuration information, or, based on the last received configuration information among the multiple configuration information, the terminal reconfigures the first time unit type corresponding to the first time unit set as a flexible type in the configuration information other than the last received configuration information among the multiple configuration information;
[0208] When the priorities of the multiple configuration information are different, the terminal reconfigures the first time unit type corresponding to the first time unit set as a flexible type in the configuration information of the second priority among the multiple configuration information based on the configuration information of the first priority among the multiple configuration information, and the first priority is lower than the second priority.
[0209] Exemplarily, the multiple configuration information may include cell-level semi-static configuration, cell-level dedicated configuration, and dynamic DCI configuration. For example, the cell-level semi-static configuration may be a cell-specific RRC configuration, the cell-level dedicated configuration may be a UE-specific RRC configuration, and the dynamic DCI configuration may include SFI or scheduling DCI.
[0210] In this embodiment, by introducing multiple configuration information, the configuration flexibility of the time domain format can be improved.
[0211] In some embodiments, the second time unit to which the at least one first time unit belongs includes at least one of the following: a symbol, a time slot, a subframe, a frame; or the second time unit to which the at least one first time unit belongs is a time unit of fixed length.
[0212] Exemplarily, when the second time unit to which the at least one first time unit belongs is a time unit of fixed length, the fixed length may be a value agreed upon by the protocol, for example, the fixed length may be 1 ms or other lengths.
[0213] In some embodiments, any one of the at least one first time unit includes at least one of the following: a symbol, a time slot, a subframe, a frame; or any one of the first time units is a time unit of fixed length.
[0214] Exemplarily, when any one of the first time units is a time unit of fixed length, the fixed length may be a value agreed upon by the protocol, for example, the fixed length may be 1 ms or other lengths.
[0215] It should be noted that the second time unit involved in the embodiments of the present application is composed of one or more first time units, and different types of second time units contain different types or different numbers of first time units. Channel / signal resource allocation can be based on the granularity of the second time unit.
[0216] In addition, it should be noted that the various configuration information involved in the embodiments of the present application may be semi-static or dynamic signaling.
[0217] For example, the various configuration information involved in the embodiments of the present application may be radio resource control (RRC), media access control (MAC) control element (CE) or L1 signaling.
[0218] For another example, the various configuration information involved in the embodiments of the present application may be carried in the DCI for scheduling the physical downlink shared channel (PDSCH) / physical uplink shared channel (PUSCH).
[0219] For example, the various configuration information involved in the embodiments of the present application can be carried in the configuration information for configuring semi-static channels / signals, for example, in the configuration information for configuring semi-persistent scheduling (Semi-Persistent Scheduling, SPS) PDSCH / configuration grant (Configuration Grant, CG) PUSCH.
[0220] The information configuration method provided by this application is described below with reference to specific embodiments.
[0221] Example 1:
[0222] In this embodiment, the terminal may determine the first time unit type corresponding to a certain first time unit (for example, any first time unit type among the at least one first time unit type corresponding to the at least one first time unit mentioned above) through the first configuration information.
[0223] In one implementation, the CP type is divided into only two types, NCP and ECP. The first configuration information indicates whether the CP type corresponding to the first time unit type is NCP or ECP; or NCP is the default CP type and does not need to be configured, and ECP is optional.
[0224] In one implementation, the CP types are divided into multiple types such as type 1, type 2, and type 3. The CP lengths of different CP types are different. The CP lengths of different CP types can be pre-agreed by the protocol or determined (or calculated) according to different CP configurations.
[0225] Specifically, the CP length is calculated according to the CP length formula predefined in the protocol, and each CP configuration includes a first parameter and / or a second parameter corresponding to the CP type. The first parameter or the second parameter is used to determine (or calculate) the length of the CP. For example, the CP length is calculated according to formula (2):
[0226] For example, the CP configuration may include parameters n1 and n2 corresponding to the CP type: n1 = 144, n2 = 16 for CP type 1; n1 = 512, n2 = 0 for CP type 2; and n1 = 1024, n2 = 0 for CP type 3. The CP configuration may also include a first parameter r corresponding to the CP type, indicating the ratio of the CP length to the signal length, for example, r = 0.1 for CP type 1, r = 0.2 for CP type 2, and r = 0.3 for CP type 3. The CP configuration may also include a first parameter t corresponding to the CP type, indicating the CP length, for example, t = 0.0012 ms for CP type 1, t = 0.0024 ms for CP type 2, and t = 0.005 ms for CP type 3.
[0227] After determining different types of CP lengths, such as CP type 1, CP type 2, and CP type 3, the terminal may determine which CP type to use based on the first configuration information, that is, the first configuration information includes: the CP type corresponding to the first time unit type or the index of the CP type. For example, the first configuration information indicates that the first time unit type 1 corresponds to CP type 3, and the first time unit type 2 corresponds to CP type 1.
[0228] In one implementation, the first configuration information includes: one or more parameters corresponding to the first time unit type, which are used to determine (or calculate) the CP length corresponding to the first time unit type. For example, the CP length is calculated according to the CP length formula predefined in the protocol. The first configuration information also includes a first parameter and / or a second parameter corresponding to the first time unit type, and the first parameter or the second parameter is used to determine (or calculate) the CP length. For example, the CP length is calculated according to formula (2). For example, the first configuration information includes: parameters n1=144 and n2=16 for the first time unit type 1, and parameters n1=512 and n2=0 for the first time unit type 2. The first configuration information may also include: a first parameter r corresponding to the first time unit type, the first parameter r indicating the ratio of the CP length to the signal length, such as the first parameter r=0.2 for the first time unit type 1. The first configuration information may also include: a first parameter t corresponding to the first time unit type, the first parameter t indicating the CP length, such as the first parameter t=0.20.0012ms for the first time unit type 1.
[0229] In one implementation, the CP length may be configured as 0.
[0230] For example, in the IoT (Internet of Things) field, single-carrier waveform technology can better meet the underlying communication requirements of IoT devices, lowering the technical barriers while improving signal transmission stability. In the context of integrated synaesthesia, Orthogonal Time-Frequency-Space (OTFS) waveforms can better demodulate the Doppler domain. These waveforms do not require a CP between symbols.
[0231] With the increase in CP types or the use of configuration information to indicate the CP length, the system can more flexibly support multiple service requirements. For example, it can simultaneously support downlink (DL) communication signals, DL perception signals, and uplink (UL) communication signals in a time slot. However, the system complexity and signaling overhead will also increase accordingly.
[0232] Example 2:
[0233] In this embodiment, the terminal may determine, through the first configuration information, a combination mode of at least one first time unit type corresponding to at least one first time unit.
[0234] In one implementation, each first time unit is a symbol, which can be divided into three types: downlink D, uplink U, and flexible F. Each type is further divided into two subtypes: NCP and ECP.
[0235] The maximum number of formats supported by a single time slot in 3GPP NR is 256. The standardized format in Table 11.1.1-1 of protocol TS 38.213 is 56. New time slot formats (slot formats) or new tables can be added to Table 11.1.1-1 of TS 38.213. Table 4 only provides examples of some first time unit type combinations. Of course, in other alternative embodiments, other first time unit type combinations can also be configured according to the solution provided in this application.
[0236] Table 4
[0237] As shown in Table 4, taking DN as an example, DN represents a downlink symbol whose time domain resource unit is NCP. The second time unit to which the at least one first time unit belongs is a time slot, and the reference subcarrier spacing indicated in the RRC signaling is SCS=15KHz. In this case, the length of a reference time slot is 1ms.
[0238] Taking format 56 as an example, a reference time slot contains 13 valid symbols, including two types of CPs, including 10 NCP downlink symbols and 3 ECP downlink symbols. When SCS = 15 kHz, the length of the 13 symbols is 0.9646 ms. The remaining 0.0354 ms can be set to zero to align the boundaries of the time slots corresponding to different subcarriers.
[0239] In one implementation, each first time unit is a symbol, which can be divided into three types: type 1 to type 3 (the three types can be downlink, uplink, and flexible), and each type is further divided into CP type 1, CP type 2, and CP type 3.
[0240] Table 5
[0241] As shown in Table 5, for the xy type, x is the first-level type index, and y is the subtype (ie, CP type) index.
[0242] The CP length is calculated according to formula (2). The parameters n1 and n2 of different CP types are indicated by RRC signaling. For example, n1 = 144, n2 = 0 for CP type 1, n1 = 208, n2 = 0 for CP type 2, and n1 = 512, n2 = 0 for CP type 3. The reference configuration indicated in RRC signaling is SCS = 15KHz. The signal length and reference CP length are specified by the protocol, as shown in formula (3):
[0243] As shown in Table 5, by setting zeros after each symbol type, the boundaries of each symbol type are aligned with the symbol boundaries of the reference configuration. The number of symbols in the first row of Table 5 is the index of the symbol corresponding to the reference configuration in the time slot. It is mainly used to obtain the allocated time length and calculate the actual number of symbols configured for each symbol type based on the time length corresponding to the symbol of the reference configuration.
[0244] Taking format 56 as an example, under the reference configuration, the sampling point length of symbols 0 to 4 is 10976κ, and the sampling length of a 1-1 type symbol is 2192κ. At this time, the actual number of 1-1 type symbols is After the end, the sampling point length of (10976-2192*5)κ=16κ is set to zero. Under the reference configuration, the sampling point length corresponding to symbols 10 to 13 is 8192κ, and the sampling length of a 1-3 type symbol is 2560κ. At this time, the actual number of 1-3 type symbols is After the end, the length of the (8192-2560*3)κ=512κ sampling points is set to zero. Represents round down.
[0245] In one implementation, the second time unit to which the at least one first time unit belongs is a time slot. When designing the time slot pattern, only the uplink, downlink, and flexible types are considered. That is, the time slot format of the NCP in Table 11.1.1-1 of the protocol TS 38.213 is still used. Then, according to the CP type configured for each frequency domain unit (for example), the actual time domain format used is determined. The frequency domain unit is a group of continuous frequency domain resources, which can be a band, carrier, subband, BWP, etc. For example, subband 1 is configured with CP type 1, subband 2 is configured with CP type 2, and subband 3 is configured with CP type 3. In a DL time slot, symbols 0 to 4 correspond to subband 1, and the symbols in the duration corresponding to symbols 0 to 4 use CP type 1. Symbols 5 to 9 correspond to subband 2, and the symbols in the duration corresponding to symbols 5 to 9 use CP type 2. Symbols 10 to 13 correspond to subband 3, and the symbols in the duration corresponding to symbols 10 to 13 use CP type 3. The actual method for calculating the number of configured symbols and the method for setting symbols to zero are the same as those in the embodiment corresponding to Table 5, and will not be repeated here to avoid repetition.
[0246] For example, when a base station performs both communication and sensing, the sensing signal might be a reference signal for sensing, requiring only a small number of symbols but requiring a longer CP length to ensure sensing distance. By configuring different time-domain patterns, the time-domain format can be flexibly selected based on the current network load and sensing requirements, ensuring both sensing performance requirements and efficient system resource utilization.
[0247] Example 3:
[0248] In this embodiment, the terminal may determine, through the first configuration information, a combination of at least one second time unit type corresponding to at least one second time unit, wherein each second time unit type includes one or more first time unit types.
[0249] In one implementation, each first time unit is a symbol, each second time unit is a time slot, and the signal length and reference CP length are specified by the protocol, as shown in formula (3) in Example 2. The reference SCS is indicated by RRC signaling as 15 kHz, and the time domain resource configuration period is 5 ms, which includes four time slot formats, i.e., the number of time slot type 1 is equal to 2, the number of time slot type 3 is equal to 1, the number of time slot type 2 is equal to 1, and the number of time slot type 4 is equal to 1.
[0250] Taking slot type 1 as an example, slot type 1 contains two symbol types: symbol type 1 is D-1 (i.e., the transmission direction is downlink and the CP type is CP type 1), with CP parameters n1 = 144, n2 = 0, and a total of 10. Symbol type 2 is D-2 (i.e., the transmission direction is downlink and the CP type is CP type 2), with CP parameters n1 = 512, n2 = 0, and a total of 3. Each slot boundary is aligned. For example, the last (30720 - (2048 + 144) * 10 - (2048 + 512) * 3) κ = 1120 κ sampling points of slot type 1 are set to zero.
[0251] In a time domain resource configuration cycle, the combination of time slot type and symbol type is shown in FIG8 , which can be configured through the first configuration information described above.
[0252] Exemplarily, the first configuration information may be semi-static or dynamic signaling, such as RRC, MAC CE or L1 signaling.
[0253] The CP type can be configured when configuring the frequency domain unit. The frequency domain unit is a group of continuous frequency domain resources, which can be a band, carrier, subband, BWP, etc. One CP can be configured for one frequency domain unit, and combined with other configuration information (using the reference SCS = 15KHz configured through TDD-UL-DL-ConfigurationCommon, the slot combination within the 5ms period is DDDUU, D represents the downlink time slot, and U represents the UL time slot), the actual time domain format used is determined, which is the same as the last implementation method in Example 2. To avoid repetition, it will not be repeated here.
[0254] In one implementation, each first time unit is a symbol, and each second time unit is a time slot. A cell-level time domain format configuration can be configured using RRC, as shown in FIG9 . Furthermore, a DCI can be used to indicate the time slot type of time slot 1 using slot format index 56, and the DCI indicates that it applies to subband 1. Based on the configuration of the time domain format corresponding to subband 1 shown in FIG9 , slot format index 56 is applied to time slot 1. Alternatively, in another implementation, subband 1 is configured to use NCP and subband 2 is configured to use ECP. When this time domain format is applied, symbols using NCP use subband 1, and symbols using ECP use subband 2.
[0255] In one implementation, each first time unit is a symbol, and each second time unit is a time slot. When transmitting multiple services with different CP requirements, and each service needs to be sent frequently but the amount of data per cycle is small, the time domain format configuration shown in Figure 10 can be used. In this configuration, different symbol types appear alternately, and there is no excess time resource remaining within a time slot. This can be designed and implemented by the base station. This approach not only meets the transmission requirements of various services, but also maximizes system resource utilization. In this embodiment, one time slot corresponds to 30720κ sampling points, and the signal portion of each symbol corresponds to 2048κ sampling points. The CP length of D-1 is 144κ sampling points, the CP length of D-2 is 512κ sampling points, the CP length of D-3 is 1024κ sampling points, the CP length of U-1 is 512κ sampling points, and the CP length of U-2 is 296κ sampling points. The total length of all symbols added together is 30720κ sampling points.
[0256] In one implementation, each first time unit is a symbol, and each second time unit is N time slots. One or more symbol types are configured in the N time slots, resulting in a total of Y symbols constituting N time slots with no remaining time resources. This design can be implemented by the base station. This approach can reduce the number of alignments, avoid zeroing some time domain resources, and improve resource utilization. An example is shown in Figure 11. The N slots can also be subframes, half-frames, frames, or fixed time lengths.
[0257] The information configuration method provided in the embodiment of the present application can be executed by an information configuration device. In the embodiment of the present application, the information configuration device provided in the embodiment of the present application is described by taking the information configuration device executing the information configuration method as an example.
[0258] FIG12 is a schematic block diagram of an information configuration device 300 provided according to an embodiment of the present application.
[0259] As shown in FIG12 , the information configuration device 300 includes:
[0260] The receiving unit 310 is configured to receive first configuration information;
[0261] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0262] In some embodiments, the first configuration information includes first indication information for indicating the type of any one of the first time units, and the first indication information includes at least one of the following:
[0263] The CP type;
[0264] An index of the CP type;
[0265] The CP length;
[0266] at least one parameter for determining the CP length;
[0267] Transmission direction.
[0268] In some embodiments, when the first indication information includes the CP type or the index of the CP type, the CP length or the at least one parameter is agreed upon by a protocol.
[0269] In some embodiments, when the first indication information includes the CP type or the index of the CP type, the receiving unit 310 is further configured to:
[0270] Receive second configuration information, where the second configuration information includes at least one of the following:
[0271] the number of the at least one CP configuration;
[0272] the at least one CP configuration;
[0273] The CP length or the at least one parameter is obtained from a target CP configuration, and the target CP configuration is a CP configuration including the CP type or the index of the CP type in the at least one CP configuration.
[0274] In some embodiments, different CP configurations in the at least one CP configuration include different CP types or CP lengths.
[0275] In some embodiments, the at least one parameter includes at least one of the following:
[0276] The values of the parameters in the calculation formula for determining the CP length;
[0277] The ratio of the CP length to the first length, wherein the first length includes at least one of the following: a signal length, a length of a first time unit in the at least one first time unit, and a length of a second time unit to which the at least one first time unit belongs.
[0278] In some embodiments, the first configuration information includes second indication information, the second indication information is used to indicate a first pattern among multiple patterns, and the first pattern is used to indicate a combination of the at least one first time unit type in the second time unit to which the at least one first time unit belongs.
[0279] In some embodiments, the multiple patterns are agreed upon through a protocol, or; before the receiving unit 310 receives the first configuration information, it is further configured to:
[0280] Configuration information of the plurality of patterns is received.
[0281] In some embodiments, the first configuration information includes at least one of the following:
[0282] a quantity of the at least one first time unit type;
[0283] a starting position of a first time unit corresponding to any one of the first time unit types;
[0284] the number or duration of first time units corresponding to any one of the first time unit types;
[0285] Indication information used to indicate the frequency domain unit corresponding to the at least one first time unit type.
[0286] In some embodiments, the receiving unit 310 is specifically configured to:
[0287] receiving third configuration information;
[0288] Among them, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, a combination method of the at least one second time unit type, the at least one second time unit includes the second time unit to which the at least one first time unit belongs, and the first configuration information is the configuration information of any one second time unit type among the at least one second time unit type.
[0289] In some embodiments, the third configuration information further includes at least one of the following:
[0290] a configuration period of the second time unit;
[0291] the number of the at least one second time unit type;
[0292] a starting position of the second time unit corresponding to any one of the second time unit types;
[0293] the number or duration of the second time units corresponding to any one of the second time unit types;
[0294] Indication information used to indicate the frequency domain unit corresponding to the at least one second time unit type.
[0295] In some embodiments, different second time unit types in the at least one second time unit type have different corresponding first time unit types, different numbers of first time unit types, and different combinations of first time unit types.
[0296] In some embodiments, when there are remaining time units that are not configured with the first time unit type in the second time unit to which the at least one first time unit belongs or in the configuration period of the second time unit to which it belongs, the remaining time units are set to a flexible type, or the remaining time units are set to zero.
[0297] In some embodiments, the remaining time unit is a time unit located at the start position or the end position of the third time unit and having a length of the second length;
[0298] The third time unit includes at least one of the following: any one of the at least one first time unit, a first time unit corresponding to the type of the any one first time unit, and a second time unit to which the at least one first time unit belongs;
[0299] The second length is determined according to the length of the third time unit and the length of a reference time unit, and the length of the reference time unit is determined based on a reference subcarrier spacing and a reference CP type.
[0300] In some embodiments, the second length is a difference between a length of the third time unit and a length of a reference time unit occupied by the third time unit.
[0301] In some embodiments, different first time unit types in the at least one first time unit type correspond to different frequency domain units.
[0302] In some embodiments, the frequency domain unit includes at least one of the following: a frequency band, a carrier, a sub-band, and a bandwidth part BWP.
[0303] In some embodiments, the information configuration device 300 further includes:
[0304] An execution unit, configured to execute at least one of the following:
[0305] Determining, based on the multiple configuration information, a first time unit type corresponding to any one of the at least one first time unit, when the priorities of multiple configuration information including the first configuration information are the same and the time domain positions indicated by different configuration information do not overlap;
[0306] In a case where the priorities of the multiple configuration information are the same and the time domain positions indicated by different configuration information overlap, reconfiguring the first time unit type corresponding to the overlapping first time unit based on the last received configuration information among the multiple configuration information, or reconfiguring the first time unit type corresponding to the first time unit set as a flexible type in the configuration information other than the last received configuration information among the multiple configuration information based on the last received configuration information among the multiple configuration information;
[0307] When the priorities of the multiple configuration information are different, based on the configuration information of the first priority among the multiple configuration information, the first time unit type corresponding to the first time unit set as a flexible type in the configuration information of the second priority among the multiple configuration information is reconfigured, and the first priority is lower than the second priority.
[0308] In some embodiments, the second time unit to which the at least one first time unit belongs includes at least one of the following: a symbol, a time slot, a subframe, a frame; or the second time unit to which the at least one first time unit belongs is a time unit of fixed length.
[0309] In some embodiments, any one of the at least one first time unit includes at least one of the following: a symbol, a time slot, a subframe, a frame; or any one of the first time units is a time unit of fixed length.
[0310] It should be understood that the information configuration device 300 provided in the embodiment of the present application may correspond to the terminal in the method embodiment of the present application, and the various units in the information configuration device 300 are respectively for implementing the corresponding processes of the method 200 shown in Figure 7. For the sake of brevity, they will not be repeated here.
[0311] In an embodiment of the present application, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination of the at least one first time unit type, and any one of the at least one first time unit types includes any one of the following: CP type or CP length. This is equivalent to the at least one first time unit being configured with the at least one time unit type, and any one of the at least one first time unit types is a type containing a CP type or a CP length. This can improve the flexibility of the time domain format of the at least one first time unit, that is, it can meet the requirements of different transmission data, application scenarios or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay extension or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix.
[0312] FIG13 is a schematic block diagram of an information configuration device 400 provided according to an embodiment of the present application.
[0313] As shown in FIG13 , the information configuration device 400 includes:
[0314] It should be understood that the information configuration device 400 provided in the embodiment of the present application may correspond to the network side device in the method embodiment of the present application, and the various units in the information configuration device 400 are respectively for implementing the corresponding processes of the method 200 shown in Figure 7. For the sake of brevity, they will not be repeated here.
[0315] The sending unit 410 is configured to send first configuration information;
[0316] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0317] In some embodiments, the first configuration information includes first indication information for indicating the type of any one of the first time units, and the first indication information includes at least one of the following:
[0318] The CP type;
[0319] An index of the CP type;
[0320] The CP length;
[0321] at least one parameter for determining the CP length;
[0322] Transmission direction.
[0323] In some embodiments, when the first indication information includes the CP type or the index of the CP type, the CP length or the at least one parameter is agreed upon by a protocol.
[0324] In some embodiments, when the first indication information includes the CP type or the index of the CP type, before sending the first configuration information, the sending unit 410 is further configured to:
[0325] Sending second configuration information, where the second configuration information includes at least one of the following:
[0326] the number of the at least one CP configuration;
[0327] the at least one CP configuration;
[0328] The CP length or the at least one parameter is obtained from a target CP configuration, and the target CP configuration is a CP configuration including the CP type or the index of the CP type in the at least one CP configuration.
[0329] In some embodiments, different CP configurations in the at least one CP configuration include different CP types or CP lengths.
[0330] In some embodiments, the at least one parameter includes at least one of the following:
[0331] The values of the parameters in the calculation formula for determining the CP length;
[0332] The ratio of the CP length to the first length, wherein the first length includes at least one of the following: a signal length, a length of a first time unit in the at least one first time unit, and a length of a second time unit to which the at least one first time unit belongs.
[0333] In some embodiments, the first configuration information includes second indication information, the second indication information is used to indicate a first pattern among multiple patterns, and the first pattern is used to indicate a combination of the at least one first time unit type in the second time unit to which the at least one first time unit belongs.
[0334] In some embodiments, the multiple patterns are agreed upon through a protocol, or; before the sending unit 410 sends the first configuration information, it is further configured to:
[0335] Sending configuration information of the multiple patterns.
[0336] In some embodiments, the first configuration information includes at least one of the following:
[0337] a quantity of the at least one first time unit type;
[0338] a starting position of a first time unit corresponding to any one of the first time unit types;
[0339] the number or duration of first time units corresponding to any one of the first time unit types;
[0340] Indication information used to indicate the frequency domain unit corresponding to the at least one first time unit type.
[0341] In some embodiments, the sending unit 410 is specifically configured to:
[0342] Sending third configuration information;
[0343] Among them, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, a combination method of the at least one second time unit type, the at least one second time unit includes the second time unit to which the at least one first time unit belongs, and the first configuration information is the configuration information of any one second time unit type among the at least one second time unit type.
[0344] In some embodiments, the third configuration information further includes at least one of the following:
[0345] a configuration period of the second time unit;
[0346] the number of the at least one second time unit type;
[0347] a starting position of the second time unit corresponding to any one of the second time unit types;
[0348] the number or duration of the second time units corresponding to any one of the second time unit types;
[0349] Indication information used to indicate the frequency domain unit corresponding to the at least one second time unit type.
[0350] In some embodiments, different second time unit types in the at least one second time unit type have different corresponding first time unit types, different numbers of first time unit types, and different combinations of first time unit types.
[0351] In some embodiments, when there are remaining time units that are not configured with the first time unit type in the second time unit to which the at least one first time unit belongs or in the configuration period of the second time unit to which it belongs, the remaining time units are set to a flexible type, or the remaining time units are set to zero.
[0352] In some embodiments, the remaining time unit is a time unit located at the start position or the end position of the third time unit and having a length of the second length;
[0353] The third time unit includes at least one of the following: any one of the at least one first time unit, a first time unit corresponding to the type of the any one first time unit, and a second time unit to which the at least one first time unit belongs;
[0354] The second length is determined according to the length of the third time unit and the length of a reference time unit, and the length of the reference time unit is determined based on a reference subcarrier spacing and a reference CP type.
[0355] In some embodiments, the second length is a difference between a length of the third time unit and a length of a reference time unit occupied by the third time unit.
[0356] In some embodiments, different first time unit types in the at least one first time unit type correspond to different frequency domain units.
[0357] In some embodiments, the frequency domain unit includes at least one of the following: a frequency band, a carrier, a sub-band, and a bandwidth part BWP.
[0358] In some embodiments, the sending unit 410 is specifically configured to:
[0359] Send multiple configuration information, where the multiple configuration information include the first configuration information, the multiple configuration information have the same priority, and the time domain positions indicated by different configuration information do not overlap or overlap, or the multiple configuration information have different priorities.
[0360] In some embodiments, the second time unit to which the at least one first time unit belongs includes at least one of the following: a symbol, a time slot, a subframe, a frame; or the second time unit to which the at least one first time unit belongs is a time unit of fixed length.
[0361] In some embodiments, any one of the at least one first time unit includes at least one of the following: a symbol, a time slot, a subframe, a frame; or any one of the first time units is a time unit of fixed length.
[0362] In an embodiment of the present application, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination of the at least one first time unit type, and any one of the at least one first time unit types includes any one of the following: CP type or CP length. This is equivalent to the at least one first time unit being configured with the at least one time unit type, and any one of the at least one first time unit types is a type containing a CP type or a CP length. This can improve the flexibility of the time domain format of the at least one first time unit, that is, it can meet the requirements of different transmission data, application scenarios or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay extension or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix.
[0363] The information configuration device in the embodiments of the present application can 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 chip. The electronic device can be a terminal or a network-side device, and the terminal can be a terminal, a network-side device, or other device. For example, the type of terminal can include but is not limited to the type of terminal 11 listed above, the type of network-side device can include but is not limited to the type of network-side device 12 listed above, and other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.
[0364] The information configuration device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
[0365] The embodiment of the present application also provides a communication device 500, as shown in Figure 7, the communication device 500 includes a processor 501 and a memory 502, and the memory 502 stores a program or instruction that can be run on the processor 501, and the program or instruction, when executed by the processor 501, implements the various steps of the above-mentioned information configuration method embodiment. For example, when the communication device 500 is a terminal, when the program or instruction is executed by the processor 501, it implements the various steps performed by the terminal in the above-mentioned information configuration method embodiment, and can achieve the same technical effect. When the communication device 500 is a network-side device, when the program or instruction is executed by the processor 501, it implements the various steps performed by the network-side device in the above-mentioned information configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described here.
[0366] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the information configuration method embodiment described above. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and each implementation process and implementation method of the above-described method embodiment can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 15 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
[0367] The terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609 and at least some of the components of the processor 610.
[0368] Those skilled in the art will appreciate that the terminal 600 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 610 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 15 does not constitute a limitation of 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 described in detail here.
[0369] It should be understood that in an embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes a touch panel 6071 and at least one of other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
[0370] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 601 may transmit the data to the processor 610 for processing. Furthermore, the radio frequency unit 601 may send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.
[0371] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 609 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 (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 609 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
[0372] Processor 610 may include one or more processing units. Optionally, processor 610 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 610.
[0373] The radio frequency unit 601 is configured to receive first configuration information;
[0374] Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination method of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
[0375] In an embodiment of the present application, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination of the at least one first time unit type, and any one of the at least one first time unit types includes any one of the following: CP type or CP length. This is equivalent to the at least one first time unit being configured with the at least one time unit type, and any one of the at least one first time unit types is a type containing a CP type or a CP length. This can improve the flexibility of the time domain format of the at least one first time unit, that is, it can meet the requirements of different transmission data, application scenarios or terminal types for CP type or CP length, thereby not only reducing the inter-symbol interference caused by channel delay extension or time-frequency offset synchronization, but also reducing the problem of reduced resource efficiency caused by the cyclic prefix.
[0376] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.
[0377] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the information configuration method embodiment shown above. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network-side device embodiment and can achieve the same technical effects.
[0378] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 16, the network-side device 700 includes an antenna 71, a radio frequency device 72, a baseband device 73, a processor 74, and a memory 75. Antenna 71 is connected to radio frequency device 72. In the uplink direction, radio frequency device 72 receives information via antenna 71 and sends the received information to baseband device 73 for processing. In the downlink direction, baseband device 73 processes the information to be transmitted and sends it to radio frequency device 72. Radio frequency device 72 processes the received information and then sends it through antenna 71.
[0379] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 73 , which includes a baseband processor.
[0380] The baseband device 73 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 16, one of the chips is, for example, a baseband processor, which is connected to the memory 75 through a bus interface to call the program in the memory 75 and execute the network side device operations shown in the above method embodiment.
[0381] The network side device may further include a network interface 76, which is, for example, a Common Public Radio Interface (CPRI).
[0382] Specifically, the network side device 700 of an embodiment of the present invention also includes: instructions or programs stored in the memory 75 and executable on the processor 74. The processor 74 calls the instructions or programs in the memory 75 to execute the methods of execution of each module shown in FIG13 and achieve the same technical effect. To avoid repetition, it will not be elaborated here.
[0383] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned information configuration method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
[0384] 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 disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.
[0385] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information configuration method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
[0386] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
[0387] An embodiment of the present application further provides 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 the various processes of the above-mentioned information configuration method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
[0388] An embodiment of the present application further provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the information configuration method described above, and the network-side device can be used to execute the steps of the information configuration method described above.
[0389] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out 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 opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.
[0390] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.
[0391] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.
Claims
1. An information configuration method, wherein, including: The terminal receives first configuration information; wherein, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination mode of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
2. The method according to claim 1, wherein, The first configuration information includes first indication information for indicating the any one first time unit type, and the first indication information includes at least one of the following: the CP type; an index of the CP type; the CP length; at least one parameter for determining the CP length; a transmission direction.
3. The method according to claim 2, wherein When the first indication information includes the CP type or the index of the CP type, before the terminal receives the first configuration information, the method further includes: The terminal receives second configuration information, and the second configuration information includes at least one of the following: the number of the at least one CP configuration; the at least one CP configuration; wherein, the CP length or the at least one parameter is obtained from a target CP configuration, and the target CP configuration is a CP configuration that includes the CP type or the index of the CP type in the at least one CP configuration.
4. The method according to claim 2 or 3, wherein The at least one parameter includes at least one of the following: a value of a parameter in a calculation formula for determining the CP length; a ratio of the CP length to a first length, and the first length includes at least one of the following: a signal length, a length of a first time unit in the at least one first time unit, and a length of a second time unit to which the at least one first time unit belongs.
5. The method according to any one of claims 1 to 4, wherein, The first configuration information includes second indication information for indicating a first pattern among a plurality of patterns, and the first pattern is used to indicate a combination mode of the at least one first time unit type in a second time unit to which the at least one first time unit belongs.
6. The method according to claim 5, wherein The plurality of patterns are agreed upon by a protocol, or; before the terminal receives the first configuration information, the method further includes: The terminal receives configuration information of the plurality of patterns.
7. The method according to any one of claims 1 to 4, wherein The first configuration information includes at least one of the following: the number of the at least one first time unit type; a starting position of a first time unit corresponding to the any one first time unit type; the number or duration of a first time unit corresponding to the any one first time unit type; indication information for indicating a frequency domain unit corresponding to the at least one first time unit type.
8. The method according to any one of claims 1 to 7, wherein The method further includes: The terminal performs at least one of the following: When priorities of a plurality of configuration information including the first configuration information are the same and time domain positions indicated by different configuration information do not overlap, the terminal determines a first time unit type corresponding to any one first time unit in the at least one first time unit based on the plurality of configuration information; When the priorities of the multiple configuration information are the same and the time domain positions indicated by different configuration information overlap, the terminal reconfigures the first time unit type corresponding to the overlapping first time unit based on the configuration information received last among the multiple configuration information, or the terminal reconfigures the first time unit type corresponding to the first time unit set to the flexible type among the configuration information other than the configuration information received last among the multiple configuration information based on the configuration information received last among the multiple configuration information; When the priorities of the multiple configuration information are different, the terminal reconfigures the first time unit type corresponding to the first time unit set to the flexible type in the configuration information of the second priority among the multiple configuration information based on the configuration information of the first priority among the multiple configuration information, where the first priority is lower than the second priority.
9. The method according to any one of claims 1 to 8, wherein The terminal receiving the first configuration information includes: The terminal receives third configuration information; Wherein, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, a combination manner of the at least one second time unit type, the at least one second time unit includes the second time unit to which the at least one first time unit belongs, and the first configuration information is the configuration information of any one of the at least one second time unit types.
10. The method according to claim 9, wherein, The third configuration information further includes at least one of the following: The configuration period of the second time unit; The number of the at least one second time unit type; The start position of the second time unit corresponding to any one of the second time unit types; The number or duration of the second time unit corresponding to any one of the second time unit types; Indication information for indicating the frequency domain unit corresponding to the at least one second time unit type.
11. The method according to any one of claims 1 to 10, wherein, When there are remaining time units in the second time unit to which the at least one first time unit belongs or in the configuration period of the second time unit to which the at least one first time unit belongs and the first time unit type is not configured for the remaining time units, the remaining time units are set to the flexible type, or the remaining time units are set to zero.
12. The method according to claim 11, wherein, The remaining time unit is a time unit located at the start position or end position of the third time unit and having a second length; The third time unit includes at least one of the following: any one of the at least one first time units, the first time unit corresponding to any one of the first time unit types, the second time unit to which the at least one first time unit belongs; The second length is determined according to the length of the third time unit and the length of the reference time unit, and the length of the reference time unit is determined based on the reference subcarrier spacing and the reference CP type.
13. The method according to claim 12, wherein, The second length is the difference between the length of the third time unit and the length of the reference time unit occupied by the third time unit.
14. The method according to any one of claims 1 to 13, wherein, Different first time unit types among the at least one first time unit types correspond to different frequency domain units.
15. An information configuration method, wherein, Includes: The network side device sends the first configuration information; Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination manner of the at least one first time unit type, and any one of the at least one first time unit type includes any one of the following: cyclic prefix CP type or CP length.
16. The method according to claim 15, wherein The first configuration information includes first indication information for indicating the any one first time unit type, and the first indication information includes at least one of the following: The CP type; An index of the CP type; The CP length; At least one parameter for determining the CP length; A transmission direction.
17. The method according to claim 16, wherein, When the first indication information includes the CP type or the index of the CP type, before the network side device sends the first configuration information, the method further includes: The network side device sends second configuration information, and the second configuration information includes at least one of the following: The number of the at least one CP configuration; The at least one CP configuration; Among them, the CP length or the at least one parameter is obtained from a target CP configuration, and the target CP configuration is a CP configuration that includes the CP type or the index of the CP type among the at least one CP configuration.
18. The method according to claim 16 or 17, wherein The at least one parameter includes at least one of the following: A value of a parameter in a calculation formula for determining the CP length; A ratio of the CP length to a first length, and the first length includes at least one of the following: a signal length, a length of a first time unit among the at least one first time unit, and a length of a second time unit to which the at least one first time unit belongs.
19. The method according to any one of claims 15 to 18, wherein, The first configuration information includes second indication information, and the second indication information is used to indicate a first pattern among a plurality of patterns, and the first pattern is used to indicate a combination manner of the at least one first time unit type in a second time unit to which the at least one first time unit belongs.
20. The method according to claim 19, wherein, The plurality of patterns are agreed upon by a protocol, or; before the network side device sends the first configuration information, the method further includes: The network side device sends configuration information of the plurality of patterns.
21. The method according to any one of claims 15 to 18, wherein The first configuration information includes at least one of the following: The number of the at least one first time unit type; A start position of a first time unit corresponding to the any one first time unit type; The number or duration of a first time unit corresponding to the any one first time unit type; Indication information for indicating a frequency domain unit corresponding to the at least one first time unit type.
22. The method according to any one of claims 15 to 21, wherein, The method further includes: The network side device sends a plurality of configuration information, the plurality of configuration information includes the first configuration information, the priorities of the plurality of configuration information are the same, and time domain positions indicated by different configuration information do not overlap or overlap, or the priorities of the plurality of configuration information are different.
23. The method according to any one of claims 15 to 22, wherein The network side device sending the first configuration information includes: The network side device sends third configuration information; Among them, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, combination mode of the at least one second time unit type, the at least one second time unit includes the second time unit to which the at least one first time unit belongs, and the first configuration information is configuration information of any one second time unit type among the at least one second time unit type.
24. The method according to claim 23, wherein, The third configuration information further includes at least one of the following: Configuration period of the second time unit; Quantity of the at least one second time unit type; Starting position of the second time unit corresponding to any one first time unit type; Quantity or duration of the second time unit corresponding to any one first time unit type; Indication information for indicating frequency domain units corresponding to the at least one second time unit type.
25. The method according to any one of claims 15 to 24, wherein, In the case where there are remaining time units in the second time unit to which the at least one first time unit belongs or in the configuration period of the second time unit to which the at least one first time unit belongs and the first time unit type is not configured, the remaining time units are set to a flexible type, or the remaining time units are set to zero.
26. The method according to claim 25, wherein, The remaining time units are time units located at the starting position or the ending position of the third time unit and having a second length; The third time unit includes at least one of the following: any one first time unit among the at least one first time units, the first time unit corresponding to any one first time unit type, the second time unit to which the at least one first time unit belongs; The second length is determined according to the length of the third time unit and the length of a reference time unit, and the length of the reference time unit is based on a reference subcarrier spacing and a reference CP type.
27. The method according to claim 26, wherein The second length is the difference between the length of the third time unit and the length of the reference time unit occupied by the third time unit.
28. The method according to any one of claims 15 to 27, wherein different first time unit types among the at least one first time unit types correspond to different frequency domain units.
29. An information configuration device, wherein, Comprising: A receiving unit, configured to receive first configuration information; Among them, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, combination mode of the at least one first time unit type, and any one first time unit type among the at least one first time unit types includes any one of the following: cyclic prefix CP type or CP length.
30. The apparatus according to claim 29, wherein, The first configuration information includes first indication information for indicating any one first time unit type, and the first indication information includes at least one of the following: The CP type; Index of the CP type; The CP length; At least one parameter for determining the CP length; Transmission direction.
31. The device according to claim 29 or 30, wherein, The first configuration information includes second indication information, and the second indication information is used to indicate a first pattern among a plurality of patterns, and the first pattern is used to indicate a combination mode of at least one first time unit type in a second time unit to which the at least one first time unit belongs.
32. The apparatus according to any one of claims 29 to 31, wherein, The first configuration information includes at least one of the following: The quantity of the at least one first time unit type; The starting position of a first time unit corresponding to any one of the first time unit types; The quantity or duration of a first time unit corresponding to any one of the first time unit types; Indication information for indicating a frequency domain unit corresponding to the at least one first time unit type.
33. The apparatus according to any one of claims 29 to 32, wherein, The receiving unit is specifically configured to: Receive third configuration information; Wherein, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, a combination mode of the at least one second time unit type, the at least one second time unit includes the second time unit to which the at least one first time unit belongs, and the first configuration information is configuration information of any one second time unit type among the at least one second time unit types.
34. An information configuration device, wherein, Including: A sending unit, configured to send first configuration information; Wherein, the first configuration information is used to configure at least one of the following: at least one first time unit type corresponding to at least one first time unit, a combination mode of the at least one first time unit type, and any one of the at least one first time unit types includes any one of the following: cyclic prefix CP type or CP length.
35. The apparatus according to claim 34, wherein, The first configuration information includes first indication information for indicating any one of the first time unit types, and the first indication information includes at least one of the following: The CP type; The index of the CP type; The CP length; At least one parameter for determining the CP length; The transmission direction.
36. The apparatus according to claim 34 or 35, wherein The first configuration information includes second indication information, and the second indication information is used to indicate a first pattern among a plurality of patterns, and the first pattern is used to indicate a combination mode of at least one first time unit type in a second time unit to which the at least one first time unit belongs.
37. The device according to any one of claims 34 to 36, wherein The first configuration information includes at least one of the following: The quantity of the at least one first time unit type; The starting position of a first time unit corresponding to any one of the first time unit types; The quantity or duration of a first time unit corresponding to any one of the first time unit types; Indication information for indicating a frequency domain unit corresponding to the at least one first time unit type.
38. The device according to any one of claims 34 to 37, wherein, The sending unit is specifically configured to: Send third configuration information; Among them, the third configuration information is used to configure at least one of the following: configuration information of at least one second time unit type corresponding to at least one second time unit, a combination manner of the at least one second time unit type, the at least one second time unit includes a second time unit to which the at least one first time unit belongs, and the first configuration information is configuration information of any one second time unit type among the at least one second time unit type.
39. A terminal, wherein, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the information configuration method according to any one of claims 1 to 14 are implemented.
40. A network-side device, wherein, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the information configuration method according to any one of claims 15 to 28 are implemented.
41. A readable storage medium, wherein, A program or instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, the steps of the information configuration method according to any one of claims 1 to 14 are implemented, or the steps of the information configuration method according to any one of claims 15 to 28 are implemented.
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