Communication method and device and storage medium

Abstract

The invention provides a communication method and device and a storage medium, relates to the technical field of communication, and is used for flexibly configuring a cyclic prefix on a time domain resource and improving the network resource use efficiency. The method comprises: receiving or transmitting a signal on a time domain resource, the time domain resource comprising a plurality of symbols, cyclic prefixes adopted by the plurality of symbols comprising at least two of a first cyclic prefix, a second cyclic prefix and a third cyclic prefix, the length of the first cyclic prefix being less than that of the third cyclic prefix, and the length of the second cyclic prefix being less than that of the third cyclic prefix; and the length of the first cyclic prefix is smaller than that of the second cyclic prefix.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, device and storage medium. Background Art

[0002] Mobile communications have continued the development law of one generation of technology every ten years, and have gone through the development of the first generation of mobile communication technology (1G) to the fifth generation of mobile communication technology (5G). Every generational leap and every technological advancement has greatly promoted industrial upgrading and economic and social development. From 1G to the second generation of mobile communication technology (2G), the transition from analog communication to digital communication has been realized, and mobile communication has entered thousands of households; from 2G to 5G, the transformation from voice service to data service has been realized, and the transmission rate has increased by hundreds of times, which has promoted the popularization and prosperity of mobile Internet applications. With the rapid development of mobile Internet, new services, new services, new technologies, and new devices are constantly emerging. 5G is difficult to meet the needs of flexible and diverse services in the future. It is urgent to develop the next generation of mobile communication systems, namely the sixth generation of mobile communication technology (6G).

[0003] 6G is a conceptual wireless network mobile communication technology. As for how to design the 6G system, it is still in the stage of soliciting candidate technologies. There is no detailed design plan for the 6G system. As a brand-new system, how to configure the cyclic prefix on the time-frequency resources under 6G needs to be studied and solved. Summary of the invention

[0004] The embodiments of the present disclosure provide a communication method, an apparatus, and a storage medium for flexibly configuring cyclic prefixes on time domain resources to improve the efficiency of network resource utilization.

[0005] In one aspect, a communication method is provided, the method comprising:

[0006] A signal is received or transmitted on a time domain resource, where the time domain resource includes a plurality of symbols, and cyclic prefixes used by the plurality of symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, wherein the length of the first cyclic prefix is ​​smaller than that of the third cyclic prefix, and the length of the first cyclic prefix is ​​smaller than that of the second cyclic prefix.

[0007] In another aspect, a communication device is provided, the device comprising:

[0008] A communication module is used to transmit a signal on a time domain resource, where the time domain resource includes a plurality of symbols, and the cyclic prefixes used by the plurality of symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, the length of the first cyclic prefix is ​​less than the third cyclic prefix, and the length of the first cyclic prefix is ​​less than the second cyclic prefix.

[0009] In another aspect, a communication device is provided, the device comprising:

[0010] A communication module is used to receive a signal on a time domain resource, where the time domain resource includes a plurality of symbols, and the cyclic prefixes used by the plurality of symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, the length of the first cyclic prefix is ​​smaller than the third cyclic prefix, and the length of the first cyclic prefix is ​​smaller than the second cyclic prefix.

[0011] On the other hand, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store computer program instructions executable by the processor; and the communication method of any of the above embodiments is implemented when the processor executes the computer program instructions.

[0012] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed on a computer (such as a communication device or a signal transmission device), the communication method of any of the above embodiments is implemented.

[0013] On the other hand, a computer program product is provided, which includes computer program instructions, and when the computer program instructions are executed, the communication method of any of the above embodiments is implemented.

[0014] The technical solution provided by the embodiment of the present disclosure improves the utilization efficiency of network resources and reduces the time domain resources occupied by the cyclic prefixes by adopting a plurality of cyclic prefixes of different lengths, thereby improving the performance of signal transmission. Moreover, the solution is conducive to flexibly adjusting the cyclic prefixes on the time domain resources for transmitting different signals according to specific needs and network conditions, so as to optimize resource utilization and signal transmission effect to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a 5G frame structure provided in an embodiment of the present disclosure;

[0016] Figure 2 A schematic diagram of the length of a time slot under different subcarrier spacing configurations provided in an embodiment of the present disclosure;

[0017] Figure 3 A schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0018] Figure 4A flow chart of a communication method provided by an embodiment of the present disclosure;

[0019] Figure 5 A time-frequency resource diagram provided by an embodiment of the present disclosure;

[0020] Figure 6 A schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure;

[0021] Figure 7 A schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure;

[0022] Figure 8 A schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0024] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "plurality" means two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0025] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0026] New Radio (NR) is the air interface standard of 5G, and its frame structure is a resource grid based on time and frequency. The frame structure of NR mainly includes the following aspects:

[0027] (1) Frame: There are two main types of frames in the NR frame structure: normal frame and special frame. Normal frame consists of 10 subframes, each of which lasts for 1 millisecond and is used to carry data and control information. The structure of special frame can be adjusted according to the specific system configuration and is generally used for special transmission requirements.

[0028] (2) Subframe: In the NR frame structure, a normal frame consists of 10 subframes, each of which lasts 0.1 milliseconds (ms). Each subframe can be further divided into different symbol slots, each of which lasts for one orthogonal frequency division multiplexing (OFDM) symbol time. The division of subframes is mainly to support different types of data transmission and multi-user multi-antenna communication requirements.

[0029] (3) Symbol slot: Each subframe is divided into 14 symbol slots, which are used to transmit data and control information. Under normal circumstances, each symbol slot lasts for one OFDM symbol time.

[0030] (4) OFDM symbol: The frame structure of NR uses OFDM technology. The duration of an OFDM symbol includes the effective symbol time and the cyclic prefix (CP) time. The duration of each OFDM symbol depends on the number of subcarriers and is usually 71.4 microseconds.

[0031] Resource Block: In the NR frame structure, a resource block (RB) is the smallest unit of resource allocation, used for the transmission of data and control information. A resource block contains 12 subcarriers and 14 OFDM symbols, totaling 1680 resource elements.

[0032] (5) Cyclic prefix: CP is formed by copying the signal at the end of the OFDM symbol to the head. There are two main lengths of CP, namely normal cyclic prefix and extended cyclic prefix. The normal cyclic prefix length is smaller than the extended cyclic prefix length. The cyclic prefix can be associated with other multipath component information to obtain complete information. In addition, the cyclic prefix can achieve time estimation and frequency synchronization.

[0033] In general, the frame structure of NR is a hierarchical structure consisting of frames, subframes, symbol slots, and OFDM symbols. This frame structure design can flexibly meet the communication needs of different types and support functions such as high-speed data transmission, low-latency communication, and multi-user multi-antenna communication.

[0034] For example, Figure 1 A schematic diagram of the 5G frame structure provided in the present disclosure, such as Figure 1 As shown in the figure, although 5GNR supports multiple subcarrier spacings, the length of the radio frame and subframe is the same under different subcarrier spacing configurations. The radio frame length is 10ms and the subframe length is 1ms. The number of time slots contained in each subframe is different. In the case of conventional CP, the number of symbols contained in each time slot is the same, which is 14. Figure 1 Shown is the case of subcarrier spacing = 15Khz (normal CP).

[0035] Among them, under different subcarrier spacing configurations, the number of time slots included in the subframe is different. Since the length of the subframe remains unchanged, the length of the time slot included in the subframe is also different under different subcarrier spacing configurations.

[0036] For example, Table 1 provides the type of cyclic prefix and the number of symbols contained in a time slot under different subcarrier spacing configurations. The number of time slots in a radio frame The number of time slots contained in a subframe

[0037] Table 1

[0038]

[0039] For example, Figure 2 The length of the time slot under different subcarrier spacing configurations provided by the present disclosure. Figure 2 As shown, it can be seen that when the subcarrier spacing is 15Khz (normal CP), a subframe has only one time slot, and a radio frame includes 10 time slots. The number of OFDM symbols included in a time slot is 14.

[0040] When the subcarrier spacing is 30 Khz (normal CP), one subframe has 2 time slots, one radio frame includes 20 time slots, and one time slot includes 14 OFDM symbols.

[0041] When the subcarrier spacing is 60 Khz (normal CP), one subframe has 4 time slots, and a radio frame includes 40 time slots. One time slot includes 14 OFDM symbols.

[0042] When the subcarrier spacing is 120 Khz (normal CP), one subframe has 8 time slots, one radio frame includes 80 time slots, and one time slot includes 14 OFDM symbols.

[0043] When the subcarrier spacing is 240 Khz (normal CP), one subframe has 16 time slots, one radio frame includes 160 time slots, and one time slot includes 14 OFDM symbols.

[0044] When the subcarrier spacing is 480 Khz (normal CP), one subframe has 32 time slots, one radio frame includes 320 time slots, and one time slot includes 14 OFDM symbols.

[0045] From the above description, it can be seen that in the existing 5G NR frame structure, a time slot includes 14 symbols in the normal CP; and a time slot includes 12 symbols in the extended CP. As the subcarrier spacing increases, the time domain symbol length also decreases. The specific CP length is as follows: the CP length corresponding to each symbol in the extended CP, the CP length of the first and the 8th symbols in the normal CP (the CP is 160k) is the same, and is greater than the CP of other symbols (the CP is 144k). This design is mainly to round up the length of a time slot to 1ms or one-nth of 1ms, where n is a power of 2, such as: 2, 4, 8, 16, etc.; in addition, considering factors such as automatic gain control (AGC) estimation, a 160k-long CP is placed on the first symbol of each half of the time slot.

[0046]

[0047]

[0048] Where K is the sampling rate, and u is 0, 1, 2, 3, 4, or 5. When the subcarrier spacing is 15KHz, u is 0; when the subcarrier spacing is 30KHz, u is 1; when the subcarrier spacing is 60KHz, u is 2; when the subcarrier spacing is 120KHz, u is 3; when the subcarrier spacing is 240KHz, u is 4; and when the subcarrier spacing is 480KHz, u is 5.

[0049] In summary, there are problems with the NR frame structure in the following scenarios:

[0050] (1) When the network performs joint sensing of multiple base stations, the CP of the existing NR frame structure limits the distance between base stations. When the distance between base stations exceeds the protection range of the existing CP, it causes inter-symbol interference, resulting in reduced perception accuracy. Therefore, in order to better perform joint sensing of multiple base stations, it is necessary to introduce a CP that is longer than the existing NR CP.

[0051] (2) When the user equipment (UE) performs data transmission based on the uplink resources pre-configured by the base station in the idle state or inactive state, the UE cannot obtain the latest uplink synchronization adjustment (UL TA) sent by the base station before sending data. If the UE is in a mobile state, this will cause the UL TA of the UE to change, thereby causing the time when the uplink data of the UE arrives at the base station and the time when the uplink data of other UEs arrive at the base station to exceed the protection range of the CP. The uplink data of the UE interferes with the uplink data of other UEs, resulting in a decrease in the probability of the base station successfully decoding the UE uplink data, an increase in the probability of retransmission, affecting the capacity of the network, and increasing the transmission delay and energy consumption of the terminal.

[0052] (3) The CP of the existing NR uplink demodulation reference signal (ULDMRS) and sounding reference signal (SRS) is the same as the CP length of the uplink data. When the base station uses UL DMRS and SRS to estimate the UL TA, the CP length of UL DMRS and SRS limits the TA range that the base station can estimate. When the UL TA exceeds the CP length, the base station can only use the physical random access channel (Physical Random Access Channel, PRACH) for estimation, but PRACH requires more resources and has a smaller bandwidth, so the uplink channel state that can be measured is limited.

[0053] In view of this, the present disclosure provides a communication method, which sends a signal on a time domain resource, wherein the time domain resource includes a plurality of symbols, and the cyclic prefixes used by the plurality of symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, wherein the length of the first cyclic prefix is ​​less than that of the third cyclic prefix, and the length of the first cyclic prefix is ​​less than that of the second cyclic prefix. By adopting a plurality of cyclic prefixes of different lengths, the utilization efficiency of network resources is improved, and the time domain resources occupied by the cyclic prefixes are reduced, thereby improving the performance of signal transmission.

[0054] The technical solution provided by the embodiments of the present disclosure can be applied to various mobile communication networks, for example, new radio (NR) mobile communication networks using fifth generation mobile communication technology (5th generation mobile networks, 5G), future mobile communication networks, or multiple communication technology fusion systems, etc., and the embodiments of the present disclosure are not limited to this.

[0055] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) in the embodiments of the present disclosure may include a first communication node and a second communication node. In some examples, the first communication node may be a base station and the second communication node may be a terminal. In other examples, the first communication node may be a terminal and the second communication node may be a base station. In yet other examples, in a device-to-device communication scenario, the first communication node and the second communication node may both be terminals. The embodiments of the present disclosure are not limited thereto.

[0056] Exemplarily, taking the first communication node as a base station and the second communication node as a terminal as an example, Figure 3 FIG. 1 is a schematic diagram showing an architecture of a communication system provided by an embodiment of the present disclosure. Figure 3 As shown, the communication system 10 includes a plurality of base stations (such as base station 21 and base station 22) and a plurality of terminals (such as terminal 31, terminal 32, terminal 33 and terminal 34). The plurality of base stations and the plurality of terminals can be communicatively connected.

[0057] In some embodiments, the base station is used to provide wireless access services for multiple terminals. Specifically, a base station provides at least one service coverage area (also referred to as a cell). Terminals entering the area can communicate with the base station via wireless signals to receive wireless access services provided by the base station. There may be overlaps between the service coverage areas of the base station 21, and terminals in the overlapping areas can receive wireless signals from multiple base stations.

[0058] In some embodiments, a base station may be connected to multiple terminal devices, for example, base station 21 is connected to terminal 31 and terminal 32. Terminal 31 and terminal 32 may be located in the same cell, or in different cells. That is, a base station may provide network services to a terminal in one cell, or may provide network services to terminals in multiple cells at the same time.

[0059] In some embodiments, the base station may be a base station or an evolved base station (eNB or eNodeB) in LTE, long term evolution advanced (LTEA), a base station in a 5G network, or a base station in a future communication system (such as 6G, etc.), etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or various network side devices such as primary cells and collaborative cells (secondary cells).

[0060] In some embodiments, the terminal may be a device with wireless transceiver function, which may be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it may also be deployed on the water surface (such as ships, etc.); it may also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0061] It should be noted that Figure 3 This is just an exemplary framework diagram. Figure 3 The number of devices included in the Figure 3 In addition to the devices shown, the communication system may also include other devices, such as core network devices.

[0062] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0063] The present disclosure provides a communication method. Figure 4 As shown, the method comprises the following steps:

[0064] S101. Receive or transmit a signal on a time domain resource.

[0065] In some embodiments, the first communication node transmits a signal on the time domain resource; correspondingly, the second communication node receives a signal on the time domain resource.

[0066] In some other embodiments, the second communication node transmits a signal on the time domain resource; correspondingly, the first communication node receives a signal on the time domain resource.

[0067] Among them, the signal may include one or more signals, such as perception signals, positioning signals, data signals, control signals, etc., which are not limited.

[0068] The time domain resources include multiple symbols, and the cyclic prefixes used by the multiple symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix. The length of the first cyclic prefix is ​​smaller than the third cyclic prefix, and the length of the first cyclic prefix is ​​smaller than the second cyclic prefix.

[0069] In some embodiments, the time domain resource is any one of a radio frame, a subframe, a time slot, and a mini-time slot.

[0070] In some embodiments, the first cyclic prefix is ​​a normal cyclic prefix and the third cyclic prefix is ​​an extended cyclic prefix.

[0071] In some embodiments, the length of the second cyclic prefix is ​​smaller than the third cyclic prefix, or the length of the second cyclic prefix is ​​larger than the third cyclic prefix.

[0072] Exemplarily, the second cyclic prefix length is 512k·2 -u ,1240k·2 -u 、692k·

[0073] 2 -u 、418k·2 -u or 420k 2 -u .

[0074] In some embodiments, symbols corresponding to different cyclic prefixes have different lengths.

[0075] In some other embodiments, symbols corresponding to different cyclic prefixes have the same length.

[0076] In some embodiments, the CP lengths of some symbols corresponding to the same cyclic prefix are the same.

[0077] For example, when the number of symbols corresponding to the second cyclic prefix is ​​3, and the CP lengths of two symbols are the same, the CP length of the remaining symbol is greater than or less than the CP lengths of the two symbols. -u and 874k 2 -u .

[0078] In another exemplary embodiment, when the number of symbols corresponding to the second cyclic prefix is ​​10, 11 or 12, the CP lengths of two symbols are the same, assuming that the length of the symbol is m, and the CP lengths of the remaining symbols are the same, assuming that the length of the symbol is n, then m is greater than or less than n, and both m and n are greater than 0. Alternatively, the CP lengths of 10, 11 or 12 symbols are the same.

[0079] In some other embodiments, the CP lengths of symbols corresponding to the same cyclic prefix are the same.

[0080] For example, when the number of symbols corresponding to the second cyclic prefix is ​​3, the CP lengths of the three symbols are the same. For example, the CP length of the symbol is 874k·2 -u or 827k 2 -u or 821k 2 -u or 512k 2 -u .

[0081] In some embodiments, symbols using the second cyclic prefix are continuous in one time slot, or are indicated by signaling, or are distributed at intervals.

[0082] In some embodiments, symbols using the third cyclic prefix are continuous in one time slot, or are indicated by signaling, or are distributed at intervals.

[0083] In some embodiments, the time domain resources include at least one time slot, and the type of the time slot includes at least one of a first type time slot, a second type time slot, and a third type time slot; wherein the symbols in the first type time slot all use a first cyclic prefix; the symbols in the third type time slot all use a third cyclic prefix; the symbols in the second type time slot use at least two of the first cyclic prefix, the second cyclic prefix, and the third cyclic prefix, or the symbols in the second type time slot all use the second cyclic prefix.

[0084] Exemplarily, symbols in a time slot using a normal CP in NR all use a normal CP. Symbols in a time slot using an extended CP in NR all use an extended CP.

[0085] In some embodiments, the length of the first cyclic prefix may be equal to the CP length of some symbols in the first type of time slot. For example, the length of the first cyclic prefix is ​​equal to the sum of the CP lengths of the first p symbols in the first type of time slot, or the length of the first cyclic prefix is ​​equal to the sum of the CP lengths of the last p symbols in the first type of time slot, or the length of the first cyclic prefix is ​​equal to 144k·2 -u . Wherein p can be 11, 10, 9, 7, 5, 3, 2 or 1.

[0086] In some embodiments, the length of the second type slot is the same as the NR slot length.

[0087] In other embodiments, the length of the second type time slot is different from the NR time slot length.

[0088] In some embodiments, the length of the second type slot is the same as the length of one symbol in NR.

[0089] In other embodiments, the length of the second type of time slot is different from the length of a symbol in NR.

[0090] In some embodiments, the second type time slot includes h symbols, wherein a symbols use the first cyclic prefix and b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, h, a, b are positive integers.

[0091] In some embodiments, the symbol corresponding to the first cyclic prefix and the symbol corresponding to the second cyclic prefix in the second type time slot are fixed; or, the symbol corresponding to the first cyclic prefix and the symbol corresponding to the third cyclic prefix in the second type time slot are fixed. For example, located at the last q symbols of a time slot, or, the first q symbols of a time slot, or, the first q symbols of a sub-time slot, or, the last q symbols of a sub-time slot, q is a positive integer.

[0092] Exemplarily, the second type of time slot includes 12 symbols, 2 symbols of the 12 symbols use the first cyclic prefix, 10 symbols use the second cyclic prefix or the third cyclic prefix, or, 4 symbols of the 12 symbols use the first cyclic prefix, 8 symbols use the second cyclic prefix or the third cyclic prefix, or, 12 symbols use the third cyclic prefix.

[0093] In another exemplary embodiment, the second type time slot includes 13 symbols, and the 13 symbols satisfy any one of the following situations:

[0094] 10 symbols among the 13 symbols use the first cyclic prefix, and 3 symbols use the second cyclic prefix;

[0095] 9 symbols among the 13 symbols use the first cyclic prefix, and 4 symbols use the second cyclic prefix;

[0096] Among the 13 symbols, 5 symbols use the first cyclic prefix, and 8 symbols use the second cyclic prefix;

[0097] 11 symbols among the 13 symbols use the first cyclic prefix, and 2 symbols use the second cyclic prefix;

[0098] 13 symbols out of the 13 symbols use the second cyclic prefix;

[0099] Among the 13 symbols, 3 symbols use the first cyclic prefix, and 10 symbols use the second cyclic prefix;

[0100] 2 symbols among the 13 symbols use the first cyclic prefix, and 11 symbols use the second cyclic prefix;

[0101] Among the 13 symbols, 1 symbol adopts the first cyclic prefix, and 12 symbols adopt the second cyclic prefix;

[0102] Among the 13 symbols, 7 symbols use the first cyclic prefix, and 6 symbols use the third cyclic prefix.

[0103] In another exemplary embodiment, the second type of time slot includes 6 symbols, all 6 symbols use the third cyclic prefix, or, 1 symbol among the 6 symbols uses the first cyclic prefix, and 5 symbols use the second cyclic prefix or the third cyclic prefix.

[0104] In some embodiments, there are one or more guard intervals in the second type time slot, and the position of the guard interval in the second type time slot includes at least one of the following:

[0105] The guard interval is located after the last symbol of the second type time slot;

[0106] The guard interval is located before the first symbol of the second type time slot;

[0107] The guard interval is located in front of the first symbol using the second cyclic prefix or the third cyclic prefix in the second type time slot;

[0108] The guard interval is located in front of the first symbol using the first cyclic prefix in the second type time slot;

[0109] The guard interval is located after the last symbol using the first cyclic prefix in the second type time slot;

[0110] The guard interval is located after the last symbol using the second cyclic prefix or the third cyclic prefix in the second type time slot.

[0111] In other embodiments, the physical channel occupies h symbols, wherein a symbols use the first cyclic prefix, and b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, and h, a, and b are positive integers. The physical channel may be a physical downlink shared channel, a physical uplink shared channel, a physical downlink control channel, a physical uplink control channel, a physical broadcast channel, or a physical multicast channel. Different cyclic prefixes may correspond to the same subcarrier spacing or to different subcarrier spacings; or, some symbols of the physical shared channel use the first cyclic prefix, and some symbols use the second cyclic prefix or the third cyclic prefix.

[0112] In some embodiments, the first communication node sends a first signaling; correspondingly, the second communication node receives the first signaling. The first signaling is used to indicate the position of the second type of time slot in the time domain resource and / or the position of the symbol using the second cyclic prefix. Thus, the second communication node can determine the position of the second type of time slot in the time domain resource and / or the position of the symbol using the second cyclic prefix according to the first signaling.

[0113] In some embodiments, the first signaling is one of the following: control information carried by a physical control channel, system information block (SIB) signaling, media access control (MAC) signaling, and radio resource control (RRC) signaling.

[0114] In some embodiments, after determining the symbols using the second cyclic prefix in the time domain resources according to the first signaling, the remaining symbols use the first cyclic prefix or the third cyclic prefix.

[0115] In some embodiments, after determining the time slots using the second cyclic prefix in the second type time slots in the time domain resources according to the first signaling, the time slots other than the time slots using the second cyclic prefix in the second type time slots use the first cyclic prefix or the third cyclic prefix.

[0116] In some embodiments, after determining the second type time slot in the time domain resource and the symbols using the second cyclic prefix in the second type time slot according to the first signaling, other symbols except the symbols using the second cyclic prefix in the second type time slot use the first cyclic prefix or the third cyclic prefix.

[0117] In some embodiments, the first communication node sends a second signaling; correspondingly, the second communication node receives the second signaling. The second signaling is used to indicate the type of time slot in the time domain resource and / or the cyclic prefix used by the symbol. Thus, the second communication node can determine the type of time slot in the time domain resource and / or the cyclic prefix used by the symbol according to the second signaling. The time slot includes an uplink time slot and / or a downlink time slot. The symbol includes an uplink symbol and / or a downlink symbol.

[0118] In some embodiments, the second signaling is one of the following: control information carried by a physical control channel, system information block SIB signaling, MAC signaling, and RRC signaling.

[0119] In some embodiments, the second signaling includes at least one of the first bitmap information, the second bitmap information, a period, and a starting position. The first bitmap information includes a plurality of first indicator bits, the i-th first indicator bit is used to indicate the type of the i-th time slot in the time domain resource, and i is a non-negative integer; the second bitmap information includes a plurality of second indicator bits, the j-th second indicator bit is used to indicate the cyclic prefix used by the j-th symbol in the time domain resource, and j is a non-negative integer. The number of first indicator bits is 10, 20, 40, 80 or 160, etc. The starting position is used to indicate the time slot position corresponding to the first first indicator bit in the first bitmap information, or the symbol position corresponding to the first second indicator bit in the second bitmap information.

[0120] In some embodiments, the starting position is a fixed value.

[0121] In some embodiments, the starting position is different in different periods and is determined according to the second signaling received in different periods.

[0122] In some embodiments, the position of the symbol using the second cyclic prefix in the time domain resource of each cycle length within multiple cycle lengths is determined based on the second bitmap information and the period. For example, the second bitmap information includes multiple second indicator bits, and the jth second indicator bit is 0 to indicate the second cyclic prefix used by the jth symbol in the time domain resource of each cycle length. Among them, the number of second indicator bits contained in the second bitmap information can be 14*n or 12*n or 13*n or 10*n or 7*n, where n is a positive integer. The period is 10, 20, 40, 80 or 160, etc., and the period can also be other positive integer values.

[0123] In some other embodiments, the second signaling includes a symbol index and a period; based on the symbol index and the period, the position of the symbol using the second cyclic prefix in the time domain resources of each cycle length within multiple cycle lengths is determined.

[0124] In some embodiments, each time slot of the time domain resource includes two sub-time slots, and each sub-time slot is equal to half of the time slot. According to the third bitmap information, the cyclic prefix corresponding to each sub-time slot of the time domain resource is determined. The third bitmap information includes multiple third indicator bits, and the kth third indicator bit is used to indicate that the cyclic prefix used by the kth sub-time slot in the time domain resource is the first cyclic prefix or the third cyclic prefix, and k is a non-negative integer. Among them, the number of third indicator bits can be 10, 20, 40, 80 or 160. For example, the kth third indication is 0 to indicate that the cyclic prefix used by the kth sub-time slot in the time domain resource is the first cyclic prefix, and the kth third indication is 1 to indicate that the cyclic prefix used by the kth sub-time slot in the time domain resource is the third cyclic prefix.

[0125] In some embodiments, a cyclic prefix corresponding to a signal is determined according to the second signaling, and the signal is received or transmitted.

[0126] In some embodiments, when the signal carries data to be transmitted by a communication node in a non-connected state, the cyclic prefix corresponding to the signal is determined according to RRC signaling or SIB signaling. The non-connected state includes an idle state, an inactive state or other new non-connected state.

[0127] In some embodiments, when the signal is a perception signal, a positioning signal or an SRS, the cyclic prefix corresponding to the signal is determined according to the cyclic prefix configuration signaling, and the cyclic prefix configuration signaling is carried in the RRC signaling or the SIB signaling; wherein, for one or more perception signals, each perception signal has an independent cyclic prefix configuration signaling; for one or more positioning signals, each positioning signal has an independent cyclic prefix configuration signaling; for one or more SRS, each SRS has an independent cyclic prefix configuration signaling.

[0128] Exemplarily, when the uplink signal transmits connection state data, the uplink signal uses the first cyclic prefix, and when the uplink signal is used for the perception function or the positioning function or the SRS or the UL DMRS, the uplink signal uses the second cyclic prefix; or, when the uplink signal transmits the SRS or the UL DMRS, the uplink signal uses the first cyclic prefix, and when the uplink signal is used for the perception function or the positioning function, the uplink signal uses the second cyclic prefix; or, the uplink signal used for the perception function or the positioning function in some time slots uses the second cyclic prefix, and the uplink signal used for the perception function or the positioning function in some time slots uses the first cyclic prefix. Among them, whether the uplink signal used for the perception function or the positioning function uses the second cyclic prefix or the first cyclic prefix, and the time slot of the second cyclic prefix are configured by base station signaling. The remaining time slots use the first cyclic prefix.

[0129] In another exemplary embodiment, when the uplink signal transmits connection state data, the uplink signal adopts the first cyclic prefix, and when the uplink signal is used for the sensing function or the positioning function or the SRS or the UL DMRS, the uplink signal adopts the third cyclic prefix; or, when the uplink signal transmits the SRS or the UL DMRS, the uplink signal adopts the first cyclic prefix, and when the uplink signal is used for the sensing function or the positioning function, the uplink signal adopts the third cyclic prefix; or, the uplink signal used for the sensing function or the positioning function in some time slots uses the third cyclic prefix, and the uplink signal used for the sensing function or the positioning function in some time slots uses the first cyclic prefix. Among them, whether the uplink signal used for the sensing function or the positioning function adopts the third cyclic prefix or the first cyclic prefix, and the time slot of the third cyclic prefix is ​​configured by base station signaling. The remaining time slots adopt the first cyclic prefix.

[0130] In some embodiments, when the signal is a physical control channel or a physical shared channel, the cyclic prefix of the symbol carrying the physical control channel or the physical shared channel is determined according to the cyclic prefix of the symbol carrying the synchronization channel.

[0131] Exemplarily, the cyclic prefix of the physical downlink shared channel is determined according to the downlink control information carried by the physical downlink control channel.

[0132] In some embodiments, the physical shared channel uses the first cyclic prefix for transmission in the first time slot, and the physical shared channel uses the second cyclic prefix for transmission in the second time slot; or, the physical shared channel uses the first cyclic prefix for transmission in the first time slot, and the physical shared channel uses the third cyclic prefix for transmission in the second time slot; or, the physical shared channel uses the second cyclic prefix for transmission in the first time slot, and the physical shared channel uses the third cyclic prefix for transmission in the second time slot; or, the physical shared channel uses the third cyclic prefix or the second cyclic prefix for transmission in the idle state or the inactive state, and the physical shared channel uses the first cyclic prefix for transmission in the connected state. The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel.

[0133] In some embodiments, the physical shared channel uses a first cyclic prefix for transmission in the first symbol of the target time slot, and uses a second cyclic prefix for transmission in the second symbol of the target time slot; or, the physical shared channel uses a first cyclic prefix for transmission in the first symbol of the target time slot, and uses a third cyclic prefix for transmission in the second symbol of the target time slot; or, the physical shared channel uses a second cyclic prefix for transmission in the first symbol of the target time slot, and uses a third cyclic prefix for transmission in the second symbol of the target time slot; wherein the physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel.

[0134] In some embodiments, in the time domain resources, the type of the uplink timeslot and the type of the downlink timeslot are independently configured; or, the type of the uplink timeslot is determined according to the type of the downlink timeslot.

[0135] In some embodiments, in the time domain resources, the cyclic prefix of the uplink symbol and the cyclic prefix of the downlink symbol are independently configured; or, the cyclic prefix of the uplink symbol is determined according to the cyclic prefix of the downlink symbol.

[0136] In some examples, the physical uplink shared channel uses the second cyclic prefix or the third cyclic prefix, and the physical downlink shared channel uses the first cyclic prefix. One implementation method is that the cyclic prefix of the physical downlink shared channel is determined according to the subcarrier spacing or the default value (non-signaling indication), and the cyclic prefix of the physical uplink shared channel is determined according to signaling. Another implementation method is that the cyclic prefix of the physical downlink shared channel and the cyclic prefix of the physical uplink shared channel are respectively indicated by signaling. The example is only a configuration result.

[0137] In other examples, the physical downlink shared channel uses the second cyclic prefix or the third cyclic prefix, and the physical uplink shared channel uses the first cyclic prefix. One implementation method is that the cyclic prefix of the physical uplink shared channel is determined according to the subcarrier spacing or the default value (non-signaling indication), and the cyclic prefix of the physical downlink shared channel is determined according to signaling. Another implementation method is that the cyclic prefix of the physical downlink shared channel and the cyclic prefix of the physical uplink shared channel are respectively indicated by signaling. The example is only a configuration result.

[0138] In some examples, UL DMRS or SRS or positioning uses the second cyclic prefix or the third cyclic prefix, and the physical downlink shared channel uses the first cyclic prefix, or the perception signal uses the second cyclic prefix or the third cyclic prefix, and the physical shared channel uses the first cyclic prefix. One implementation method is that the cyclic prefix of the physical shared channel is determined according to the subcarrier spacing or the default value (non-signaling indication), and the cyclic prefix of the signal (UL DMRS or SRS or positioning signal or perception signal) is determined according to signaling. Another implementation method is that the cyclic prefix of the physical shared channel and the cyclic prefix of the signal (UL DMRS or SRS or positioning signal or perception signal) are respectively indicated by signaling, and the example is only a configuration result.

[0139] In some embodiments, SIB signaling or RRC message or downlink control information (DCI carried by PDCCH) indicates the type of time slot (including the indication of cyclic prefix) and / or the symbol type (including the indication of cyclic prefix); the channel or signal determines the cyclic prefix it uses according to the time slot type and / or symbol type it is in. Among them, the uplink and downlink time slots can be indicated separately, or the uplink and downlink time slots can be indicated uniformly according to the time slot indication without distinguishing between the uplink and downlink.

[0140] For example, a 40-bit bitmap indicates the types of 40 time slots, and each bit represents a first type of time slot (first cyclic prefix or third cyclic prefix) and a second type of time slot. The signal or channel determines its cyclic prefix type according to the type of time slot it is in. A 140-bit bitmap indicates the cyclic prefix type of 140 symbols in 10 time slots, and each bit represents whether it is the first cyclic prefix or the second cyclic prefix, or each bit represents whether it is the first cyclic prefix or the third cyclic prefix, or each bit represents whether it is the second cyclic prefix or the third cyclic prefix. The signal or channel determines its cyclic prefix type according to the type of symbol it is in. The two indication methods can also be combined. For example, the time slot bitmap indicates the time slot type, and the time slot type includes the first type of time slot and the second type of time slot. The symbol bitmap further indicates the cyclic prefix type corresponding to the symbol in the second type of time slot.

[0141] In some embodiments, the sum of the guard interval, the cyclic prefix, and the symbol length is the same as or close to the length of one time slot.

[0142] In some embodiments, different cyclic prefixes correspond to symbols with different subcarrier spacings.

[0143] In some embodiments, different cyclic prefixes correspond to symbols of the same subcarrier spacing.

[0144] In some embodiments, the first communication node sends a third signaling; correspondingly, the second communication node receives the third signaling. The third signaling is used to indicate the subcarrier spacing and / or cyclic prefix supported by the time domain resource. Thus, the second communication node can determine the subcarrier spacing and / or cyclic prefix supported by the time domain resource according to the third signaling.

[0145] In some embodiments, the third signaling is RRC signaling.

[0146] In some embodiments, the first communication node sends a fourth signaling; correspondingly, the second communication node receives the fourth signaling. The fourth signaling is used to indicate the subcarrier spacing and / or cyclic prefix adopted by the time domain resource, and the symbol position corresponding to the adopted subcarrier spacing and / or cyclic prefix. Thus, the second communication node can determine the adopted subcarrier spacing and / or cyclic prefix, and the symbol position corresponding to the adopted subcarrier spacing and / or cyclic prefix according to the fourth signaling.

[0147] In some embodiments, the fourth signaling is physical downlink control information.

[0148] In some embodiments, each of the multiple channel types corresponds to multiple subcarrier spacings. The multiple channel types include a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), a channel state information reference signal (CSI-RS), an SRS, and a phase reference signal (PR-

[0149] RS). This can avoid defining the switching interval in symbols when switching uplink and downlink, and the uplink and downlink switching time may only occupy a part of the duration of a symbol, resulting in the remaining resources of the protection interval cannot be used, resulting in resource waste. Because there are multiple subcarrier intervals, there are multiple symbol lengths and multiple cyclic prefixes.

[0150] For example, Figure 5 As shown, a PUSCH occupies parts A and B, wherein the symbols of part A use a subcarrier spacing of 30KHz and a corresponding cyclic prefix, and the symbols of part B use a subcarrier spacing of 15KHz and a corresponding cyclic prefix; or, SRS uses a subcarrier spacing of 15KHz and a corresponding cyclic prefix when transmitting in part A, and SRS uses a subcarrier spacing of 30KHz and a corresponding cyclic prefix when transmitting in part B.

[0151] Exemplarily, when the uplink signal transmits connected state data, the uplink signal uses the first cyclic prefix, and when the uplink signal transmits idle state (non-connected state) data, the uplink signal uses the second cyclic prefix or the third cyclic prefix. Specifically, one implementation method is that the cyclic prefix of the connected state physical uplink shared channel is determined according to the subcarrier spacing or the default value (non-signaling indication), and the cyclic prefix of the idle state or inactive state (non-connected state) physical uplink shared channel is determined according to signaling; another implementation method is that the cyclic prefix of the idle state or inactive state (non-connected state) physical uplink shared channel and the cyclic prefix of the connected state physical uplink shared channel are respectively indicated by signaling, and this example is only a configuration result.

[0152] For example, in the existing 2-step PRACH process, when MsgA is transmitted, the preamble is no longer transmitted, and only the PUSCH is transmitted. The symbols of the PUSCH use the second cyclic prefix or the third cyclic prefix, and the symbols of the PUSCH transmitted in the connected state use the first cyclic prefix; or, during the access process, some or all of the PUSCH symbols use the second cyclic prefix, and the symbols of the PUSCH transmitted in the connected state use the first cyclic prefix; or, during the access process, some or all of the PUSCH symbols use the second cyclic prefix, the symbols of the PUSCH transmitted on some time slots in the connected state use the first cyclic prefix, and the symbols of the PUSCH transmitted on some time slots use the second cyclic prefix.

[0153] When the PUSCH of the access process adopts the second cyclic prefix, when other PUSCHs are transmitted on symbols corresponding to the PUSCH adopting the second cyclic prefix, the second cyclic prefix is ​​also adopted.

[0154] For example, when the PUSCH resources using the second cyclic prefix are periodically preconfigured by the base station, if the dynamically scheduled PUSCH is transmitted on the PUSCH corresponding symbol of the second cyclic prefix, it is assumed that the dynamically scheduled PUSCH also uses the second cyclic prefix for transmission; otherwise, it uses the first cyclic prefix for transmission.

[0155] Specifically, one implementation method is that the cyclic prefix of the connected state PUSCH is determined according to the subcarrier spacing or the default value (non-signaling indication), and the cyclic prefix of the PUSCH in the first step of access is determined according to signaling. Another way is that the cyclic prefix of the PUSCH in the first step of access and the cyclic prefix of the connected state PUSCH are respectively indicated by signaling. This example is only a configuration.

[0156] In another example, when the uplink signal transmits connected state data, the uplink signal uses the first cyclic prefix, and when the uplink signal transmits idle state data, the uplink signal uses the third cyclic prefix. The idle state includes the non-connected state, the idle state or inactive state of the existing NR, and the non-connected state of 6G.

[0157] For example, in the existing 2-step PRACH, when MsgA is transmitted, the preamble is no longer transmitted, and only the PUSCH is transmitted. The symbols of the PUSCH use the third cyclic prefix, and the symbols of the PUSCH transmitted in the connected state use the first cyclic prefix;

[0158] Alternatively, part or all of the PUSCH symbols in the access process use the third cyclic prefix, and the PUSCH symbols transmitted in the connected state use the first cyclic prefix;

[0159] Alternatively, during the access process, some or all PUSCH symbols use the third cyclic prefix, and in the connected state, the PUSCH symbols transmitted on some time slots use the first cyclic prefix, and the PUSCH symbols transmitted on some time slots use the third cyclic prefix;

[0160] Among them, whether PUSCH uses the third cyclic prefix or the first cyclic prefix is ​​configured by base station signaling.

[0161] When the PUSCH of the access process adopts the third cyclic prefix, when other PUSCHs are transmitted on symbols corresponding to the PUSCH adopting the third cyclic prefix, the third cyclic prefix is ​​also adopted;

[0162] For example: when the PUSCH resources using the third cyclic prefix are periodically preconfigured by the base station, if the dynamically scheduled PUSCH is transmitted on the PUSCH corresponding symbol of the third cyclic prefix, it is assumed that the dynamically scheduled PUSCH also uses the third cyclic prefix for transmission; otherwise, it uses the first cyclic prefix for transmission.

[0163] In another exemplary embodiment, a PUSCH symbol includes a symbol for transmitting data corresponding to the PUSCH and a symbol for transmitting a UL DMRS corresponding to the PUSCH, wherein one or more UL DMRS corresponding symbols of the PUSCH use the second cyclic prefix, and the PUSCH transmission data corresponding symbol uses the first cyclic prefix;

[0164] Alternatively, a PUSCH symbol includes a symbol for transmitting data corresponding to the PUSCH and a symbol for transmitting a UL DMRS corresponding to the PUSCH, wherein one or more UL DMRS corresponding symbols of the PUSCH use the third cyclic prefix, and the PUSCH transmission data corresponding symbol uses the first cyclic prefix;

[0165] Alternatively, part of the uplink signal for transmitting the SRS uses the first cyclic prefix, and part of the uplink signal for transmitting the SRS uses the second cyclic prefix;

[0166] Alternatively, part of the uplink signal for transmitting the SRS uses the first cyclic prefix, and part of the uplink signal for transmitting the SRS uses the third cyclic prefix.

[0167] Exemplarily, the base station transmits cyclic prefix indication signaling, such as SIB signaling or RRC signaling, wherein the cyclic prefix indication signaling includes bitmap information, the bitmap information includes multiple indication bits, and the rth indication bit is used to indicate whether the cyclic prefix used in the rth sub-time slot in the time domain resource is the first cyclic prefix (such as: the conventional CP of NR) or the third cyclic prefix (such as: the extended CP of NR), and r is a non-negative integer. The base station selects the corresponding cyclic prefix to transmit data, or receives data sent by the terminal, according to the cyclic prefix type of the sub-time slot where the data is located.

[0168] The terminal receives a cyclic prefix indication signaling sent by the base station, such as SIB signaling or RRC signaling, wherein the cyclic prefix indication signaling includes bitmap information, the bitmap information includes multiple indication bits, and the rth indication bit is used to indicate whether the cyclic prefix used by the rth sub-time slot in the time domain resource is the first cyclic prefix (such as: the conventional CP of NR) or the third cyclic prefix (such as: the extended CP of NR), and r is a non-negative integer. The terminal selects the corresponding cyclic prefix to transmit data according to the cyclic prefix type of the sub-time slot where the data is located, or receives data sent by the base station.

[0169] Wherein, when the cyclic prefix indication signaling is not received, the default cyclic prefix type is adopted; when the cyclic prefix indication signaling is received, the cyclic prefix type is determined according to the cyclic prefix indication signaling. The cyclic prefixes of the uplink and downlink can be indicated separately, such as: the downlink cyclic prefix is ​​determined by the default value, and the uplink is determined by the cyclic prefix indication signaling, or the uplink cyclic prefix is ​​determined by the default value, and the downlink is determined by the cyclic prefix indication signaling, or the uplink and downlink are determined by the corresponding cyclic prefix indication signaling.

[0170] Based on this, by adopting cyclic prefixes of various lengths, the utilization efficiency of network resources can be improved, the time domain resources occupied by the cyclic prefix can be reduced, and thus the performance of signal transmission can be improved.

[0171] The above mainly introduces the scheme of the embodiment of the present disclosure from the perspective of the method. A communication device is also shown below for executing the communication method in any of the above embodiments and possible implementations thereof. It can be understood that the communication device includes a hardware structure and / or software module corresponding to each function for the communication method; those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiment of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0172] The embodiments of the present disclosure may divide the functional modules of the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0173] Figure 6 The communication device 60 is provided by an embodiment of the present disclosure. The communication device 60 includes: a communication module 61 and a processing module 62.

[0174] The communication module 61 is used to transmit a signal on a time domain resource, where the time domain resource includes multiple symbols, and the cyclic prefixes used by the multiple symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, the length of the first cyclic prefix is ​​smaller than the third cyclic prefix, and the length of the first cyclic prefix is ​​smaller than the second cyclic prefix.

[0175] In some embodiments, the time domain resource is any one of a radio frame, a subframe, a time slot, and a mini-time slot.

[0176] In some embodiments, the first cyclic prefix is ​​a normal cyclic prefix and the third cyclic prefix is ​​an extended cyclic prefix.

[0177] In some embodiments, the time domain resources include at least one time slot, and the type of the time slot includes at least one of a first type time slot, a second type time slot, and a third type time slot; wherein the symbols in the first type time slot all use a first cyclic prefix; the symbols in the third type time slot all use a third cyclic prefix; the symbols in the second type time slot use at least two of the first cyclic prefix, the second cyclic prefix, and the third cyclic prefix, or the symbols in the second type time slot all use the second cyclic prefix.

[0178] In some embodiments, the processing module 62 is configured to determine, according to the first signaling, a position of a second type of time slot in the time domain resource and / or a position of a symbol using a second cyclic prefix.

[0179] In some embodiments, the processing module 62 is configured to determine the type of a time slot in a time domain resource and / or a cyclic prefix used by a symbol according to the second signaling.

[0180] In some embodiments, the second signaling includes at least one of the first bitmap information, the second bitmap information, a period and a starting position; wherein the first bitmap information includes multiple first indicator bits, the i-th first indicator bit is used to indicate the type of the i-th time slot in the time domain resource, and i is a non-negative integer; the second bitmap information includes multiple second indicator bits, the j-th second indicator bit is used to indicate the cyclic prefix used by the j-th symbol in the time domain resource, and j is a non-negative integer.

[0181] In some embodiments, the second signaling is one of the following: control information carried by a physical control channel, system information block SIB signaling, medium access control MAC signaling, and radio resource control RRC signaling.

[0182] In some embodiments, the communication module 61 is used to determine the cyclic prefix corresponding to the signal according to the second signaling, and receive or transmit the signal.

[0183] In some embodiments, the physical shared channel uses a first cyclic prefix for transmission in the first time slot, and the physical shared channel uses a second cyclic prefix for transmission in the second time slot; or, the physical shared channel uses a first cyclic prefix for transmission in the first time slot, and the physical shared channel uses a third cyclic prefix for transmission in the second time slot; or, the physical shared channel uses a second cyclic prefix for transmission in the first time slot, and the physical shared channel uses a third cyclic prefix for transmission in the second time slot; or, the physical shared channel uses the third cyclic prefix or the second cyclic prefix for transmission in an idle state or an inactive state, and the physical shared channel uses the first cyclic prefix for transmission in a connected state.

[0184] In some embodiments, the physical shared channel uses a first cyclic prefix for transmission in the first symbol of the target time slot, and uses a second cyclic prefix for transmission in the second symbol of the target time slot; or, the physical shared channel uses a first cyclic prefix for transmission in the first symbol of the target time slot, and uses a third cyclic prefix for transmission in the second symbol of the target time slot; or, the physical shared channel uses a second cyclic prefix for transmission in the first symbol of the target time slot, and uses a third cyclic prefix for transmission in the second symbol of the target time slot; wherein the physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel.

[0185] In some embodiments, when a signal carries data to be transmitted by a communication node in a non-connected state, a cyclic prefix corresponding to the signal is determined according to RRC signaling or SIB signaling.

[0186] In some embodiments, when the signal is a perception signal, a positioning signal, or an SRS, the cyclic prefix corresponding to the signal is determined according to the cyclic prefix configuration signaling, and the cyclic prefix configuration signaling is carried in the RRC signaling or the SIB signaling; wherein, for one or more perception signals, each perception signal has an independent cyclic prefix configuration signaling; for one or more positioning signals, each positioning signal has an independent cyclic prefix configuration signaling; for one or more SRS, each SRS has an independent cyclic prefix configuration signaling.

[0187] In some embodiments, the signal is a physical control channel or a physical shared channel; the cyclic prefix of the symbol carrying the physical control channel or the physical shared channel is determined according to the cyclic prefix of the symbol carrying the synchronization channel.

[0188] In some embodiments, in the time domain resources, the type of the uplink timeslot and the type of the downlink timeslot are independently configured; or, the type of the uplink timeslot is determined according to the type of the downlink timeslot.

[0189] In some embodiments, in the time domain resources, the cyclic prefix of the uplink symbol and the cyclic prefix of the downlink symbol are independently configured; or, the cyclic prefix of the uplink symbol is determined according to the cyclic prefix of the downlink symbol.

[0190] In some embodiments, the second type time slot includes h symbols, wherein a symbols use the first cyclic prefix, and b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, h, a, b are positive integers; or, the physical channel includes h symbols, wherein a symbols use the first cyclic prefix, and b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, h, a, b are positive integers.

[0191] In some embodiments, the second type time slot includes 12 symbols, 2 symbols of the 12 symbols use the first cyclic prefix, 10 symbols use the second cyclic prefix or the third cyclic prefix, or, 4 symbols of the 12 symbols use the first cyclic prefix, 8 symbols use the second cyclic prefix or the third cyclic prefix, or, 12 symbols use the third cyclic prefix.

[0192] In some embodiments, the second type time slot includes 13 symbols, and the 13 symbols satisfy any one of the following situations:

[0193] 10 symbols among the 13 symbols use the first cyclic prefix, and 3 symbols use the second cyclic prefix;

[0194] 9 symbols among the 13 symbols use the first cyclic prefix, and 4 symbols use the second cyclic prefix;

[0195] Among the 13 symbols, 5 symbols use the first cyclic prefix, and 8 symbols use the second cyclic prefix;

[0196] 11 symbols among the 13 symbols use the first cyclic prefix, and 2 symbols use the second cyclic prefix;

[0197] 13 symbols out of the 13 symbols use the second cyclic prefix;

[0198] Among the 13 symbols, 3 symbols use the first cyclic prefix, and 10 symbols use the second cyclic prefix;

[0199] 2 symbols among the 13 symbols use the first cyclic prefix, and 11 symbols use the second cyclic prefix;

[0200] Among the 13 symbols, 1 symbol adopts the first cyclic prefix, and 12 symbols adopt the second cyclic prefix;

[0201] Among the 13 symbols, 7 symbols use the first cyclic prefix, and 6 symbols use the third cyclic prefix.

[0202] In some embodiments, the second type time slot includes 6 symbols, all 6 symbols use the third cyclic prefix, or 1 symbol among the 6 symbols uses the first cyclic prefix and 5 symbols use the second cyclic prefix or the third cyclic prefix.

[0203] In some embodiments, there are one or more guard intervals in the second type time slot, and the position of the guard interval in the second type time slot includes at least one of the following:

[0204] The guard interval is located after the last symbol of the second type time slot;

[0205] The guard interval is located before the first symbol of the second type time slot;

[0206] The guard interval is located in front of the first symbol using the second cyclic prefix or the third cyclic prefix in the second type time slot;

[0207] The guard interval is located in front of the first symbol using the first cyclic prefix in the second type time slot;

[0208] The guard interval is located after the last symbol using the first cyclic prefix in the second type time slot;

[0209] The guard interval is located after the last symbol using the second cyclic prefix or the third cyclic prefix in the second type time slot.

[0210] In some embodiments, symbols using the second cyclic prefix are continuous in one time slot, or are indicated by signaling, or are distributed at intervals.

[0211] In some embodiments, symbols using the third cyclic prefix are continuous in one time slot, or are indicated by signaling, or are distributed at intervals.

[0212] In some embodiments, symbols corresponding to different cyclic prefixes have different lengths.

[0213] In some embodiments, symbols corresponding to different cyclic prefixes have the same length.

[0214] In some embodiments, different cyclic prefixes correspond to symbols with different subcarrier spacings.

[0215] In some embodiments, symbols corresponding to different cyclic prefixes correspond to the same subcarrier spacing.

[0216] In some embodiments, the processing module 62 is configured to determine supported subcarrier spacing and / or cyclic prefix according to the third signaling.

[0217] In some embodiments, the processing module 62 is used to determine the adopted subcarrier spacing and / or cyclic prefix, and the symbol position corresponding to the adopted subcarrier spacing and / or cyclic prefix according to the fourth signaling.

[0218] Figure 7 It is another communication device provided by the embodiment of the present disclosure. The communication device 70 includes:

[0219] Communication module 71.

[0220] The communication module 71 is used to receive signals on time domain resources. The time domain resources and signal-related contents are described above and will not be repeated here.

[0221] In some embodiments, the communication module 71 is used to send a first signaling, where the first signaling is used to indicate a second type of time slot position in a time domain resource and / or a symbol using a second cyclic prefix.

[0222] In some embodiments, the communication module 71 is used to send a second signaling, where the second signaling is used to indicate the type of time slot in the time domain resource and / or the cyclic prefix used by the symbol.

[0223] Among them, the relevant contents of the first signaling and the second signaling are introduced above and will not be repeated here.

[0224] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiment of the present disclosure also provides another possible structure of a communication device, which is used to execute the communication method provided by the embodiment of the present disclosure. Figure 8 As shown, the communication device 800 includes: a communication interface 803, a processor 802 and a bus 804. Optionally, the communication device may also include a memory 801.

[0225] The processor 802 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 802 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 802 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0226] The communication interface 803 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0227] The memory 801 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0228] As a possible implementation, the memory 801 may exist independently of the processor 802, and the memory 801 may be connected to the processor 802 via a bus 804 to store instructions or program codes. When the processor 802 calls and executes the instructions or program codes stored in the memory 801, the communication method provided in the embodiment of the present disclosure can be implemented.

[0229] In another possible implementation, the memory 801 may also be integrated with the processor 802 .

[0230] The bus 804 may be an extended industry standard architecture (EISA) bus, etc. The bus 804 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0231] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), in which computer program instructions are stored. When the computer program instructions are executed on a computer, the computer executes the communication method described in any of the above embodiments.

[0232] In an exemplary embodiment, the computer may be the above-mentioned signal transmission device, and the present disclosure does not limit the specific form of the computer.

[0233] In some examples, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact disks (CD), digital versatile disks (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0234] An embodiment of the present disclosure provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the communication method described in any one of the above embodiments.

[0235] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: The method comprises: A signal is received or transmitted on a time domain resource, wherein the time domain resource includes a plurality of symbols, and the cyclic prefixes used by the plurality of symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, wherein the length of the first cyclic prefix is ​​smaller than that of the third cyclic prefix, and the length of the first cyclic prefix is ​​smaller than that of the second cyclic prefix.

2. The method according to claim 1, characterized in that The time domain resource is any one of a radio frame, a subframe, a time slot, and a mini-time slot.

3. The method according to claim 1, characterized in that The first cyclic prefix is ​​a normal cyclic prefix, and the third cyclic prefix is ​​an extended cyclic prefix.

4. The method according to claim 1, characterized in that: The time domain resources include at least one time slot, and the type of the time slot includes at least one of a first type time slot, a second type time slot and a third type time slot; wherein, the symbols in the first type time slot all use the first cyclic prefix; the symbols in the third type time slot all use the third cyclic prefix; the symbols in the second type time slot use at least two of the first cyclic prefix, the second cyclic prefix and the third cyclic prefix, or the symbols in the second type time slot all use the second cyclic prefix.

5. The method according to claim 1, characterized in that The position of the second type of time slot in the time domain resource and / or the position of the symbol using the second cyclic prefix is ​​determined according to the first signaling.

6. The method according to claim 1, characterized in that The type of the time slot and / or the cyclic prefix used by the symbol in the time domain resource is determined according to the second signaling.

7. The method according to claim 6, characterized in that The second signaling includes at least one of the first bitmap information, the second bitmap information, a period and a starting position; wherein the first bitmap information includes multiple first indicator bits, the i-th first indicator bit is used to indicate the type of the i-th time slot in the time domain resource, and i is a non-negative integer; the second bitmap information includes multiple second indicator bits, the j-th second indicator bit is used to indicate the cyclic prefix used by the j-th symbol in the time domain resource, and j is a non-negative integer.

8. The method according to claim 6, characterized in that The second signaling is one of the following: control information carried by a physical control channel, system information block SIB signaling, medium access control MAC signaling, and radio resource control RRC signaling.

9. The method according to claim 6, characterized in that Determine a cyclic prefix corresponding to the signal according to the second signaling, and receive or transmit the signal.

10. The method according to claim 1, characterized in that A physical shared channel is transmitted using the first cyclic prefix in a first time slot, and the physical shared channel is transmitted using the second cyclic prefix in a second time slot; or, The physical shared channel is transmitted using the first cyclic prefix in the first time slot, and the physical shared channel is transmitted using the third cyclic prefix in the second time slot; or, The physical shared channel is transmitted using the second cyclic prefix in the first time slot, and the physical shared channel is transmitted using the third cyclic prefix in the second time slot; or, The physical shared channel uses the third cyclic prefix or the second cyclic prefix for transmission in an idle state or an inactive state, and uses the first cyclic prefix for transmission in a connected state.

11. The method according to claim 1, characterized in that: The first symbol of the physical shared channel in the target time slot is transmitted using the first cyclic prefix, and the second symbol of the target time slot is transmitted using the second cyclic prefix; or, The physical shared channel is transmitted using the first cyclic prefix in the first symbol of the target time slot, and the physical shared channel is transmitted using the third cyclic prefix in the second symbol of the target time slot; or, The physical shared channel is transmitted using the second cyclic prefix in a first symbol of the target time slot, and the physical shared channel is transmitted using the third cyclic prefix in a second symbol of the target time slot.

12. The method according to claim 1, characterized in that In the case where the signal carries data to be transmitted by a communication node in a non-connected state, the cyclic prefix corresponding to the signal is determined according to RRC signaling or SIB signaling.

13. The method according to claim 1, characterized in that When the signal is a perception signal, a positioning signal or a sounding reference signal SRS, the cyclic prefix corresponding to the signal is determined according to a cyclic prefix configuration signaling, and the cyclic prefix configuration signaling is carried in RRC signaling or SIB signaling; wherein, for one or more perception signals, each perception signal has an independent cyclic prefix configuration signaling; for one or more positioning signals, each positioning signal has an independent cyclic prefix configuration signaling; for one or more SRS, each SRS has an independent cyclic prefix configuration signaling.

14. The method according to claim 1, characterized in that The signal is a physical control channel or a physical shared channel; the cyclic prefix of the symbol carrying the physical control channel or the symbol carrying the physical control channel is determined according to the cyclic prefix of the symbol carrying the synchronization channel.

15. The method according to claim 1, characterized in that In the time domain resources, the type of the uplink time slot and the type of the downlink time slot are independently configured; or, the type of the uplink time slot is determined according to the type of the downlink time slot.

16. The method according to claim 1, characterized in that In the time domain resources, the cyclic prefix of the uplink symbol and the cyclic prefix of the downlink symbol are independently configured; or, the cyclic prefix of the uplink symbol is determined according to the cyclic prefix of the downlink symbol.

17. The method according to claim 4, characterized in that The second type time slot includes h symbols, wherein a symbols use the first cyclic prefix, and b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, h, a, b are positive integers; or, the physical channel includes h symbols, wherein a symbols use the first cyclic prefix, and b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, h, a, b are positive integers.

18. The method according to claim 17, characterized in that The second type time slot includes 12 symbols, 2 symbols of the 12 symbols use the first cyclic prefix, 10 symbols use the second cyclic prefix or the third cyclic prefix, or, 4 symbols of the 12 symbols use the first cyclic prefix, 8 symbols use the second cyclic prefix or the third cyclic prefix, or, the 12 symbols use the third cyclic prefix.

19. The method according to claim 17, characterized in that The second type time slot includes 13 symbols, and the 13 symbols satisfy any one of the following situations: Ten symbols of the 13 symbols use the first cyclic prefix, and three symbols use the second cyclic prefix; 9 symbols of the 13 symbols use the first cyclic prefix, and 4 symbols use the second cyclic prefix; Of the 13 symbols, 5 symbols use the first cyclic prefix, and 8 symbols use the second cyclic prefix; 11 symbols of the 13 symbols use the first cyclic prefix, and 2 symbols use the second cyclic prefix; 13 symbols among the 13 symbols use the second cyclic prefix; Among the 13 symbols, 3 symbols use the first cyclic prefix, and 10 symbols use the second cyclic prefix; Two symbols of the 13 symbols use the first cyclic prefix, and 11 symbols use the second cyclic prefix; One symbol among the 13 symbols adopts the first cyclic prefix, and 12 symbols adopt the second cyclic prefix; Among the 13 symbols, 7 symbols use the first cyclic prefix, and 6 symbols use the third cyclic prefix.

20. The method according to claim 17, characterized in that The second type time slot includes 6 symbols, and the 6 symbols all use the third cyclic prefix, or, one symbol among the 6 symbols uses the first cyclic prefix, and five symbols use the second cyclic prefix or the third cyclic prefix.

21. The method according to claim 4, characterized in that There are one or more guard intervals in the second type time slot, and the position of the guard interval in the second type time slot includes at least one of the following: The guard interval is located after the last symbol of the second type time slot; The guard interval is located before the first symbol of the second type time slot; The guard interval is located in front of the first symbol using the second cyclic prefix or the third cyclic prefix in the second type time slot; The guard interval is located in front of the first symbol using the first cyclic prefix in the second type time slot; The guard interval is located after the last symbol using the first cyclic prefix in the second type time slot; The guard interval is located after the last symbol using the second cyclic prefix or the third cyclic prefix in the second type time slot.

22. The method according to claim 1, characterized in that Symbols using the second cyclic prefix are continuous in one time slot, or are indicated by signaling, or are distributed at intervals.

23. The method according to claim 1, characterized in that Symbols using the third cyclic prefix are continuous in one time slot, or are indicated by signaling, or are distributed at intervals.

24. The method according to claim 1, characterized in that Symbols corresponding to different cyclic prefixes have different lengths.

25. The method according to claim 1, characterized in that Symbols corresponding to different cyclic prefixes have the same length.

26. The method according to claim 1, characterized in that Different cyclic prefixes correspond to symbols with different subcarrier spacings.

27. The method according to claim 1, characterized in that Symbols corresponding to different cyclic prefixes correspond to the same subcarrier spacing.

28. The method according to claim 1, characterized in that The supported subcarrier spacing and / or cyclic prefix is ​​determined according to the third signaling.

29. The method according to claim 24, characterized in that The adopted subcarrier spacing and / or cyclic prefix, and the symbol position corresponding to the adopted subcarrier spacing and / or cyclic prefix are determined according to the fourth signaling.

30. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 29 is performed.

31. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 29.

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