CN119520208A

CN119520208A - A communication method, device and storage medium

Info

Publication number: CN119520208A
Application number: CN202311071360.6A
Authority: CN
Inventors: 戴博; 胡留军; 郁光辉
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2025-02-25
Also published as: WO2025039629A1

Abstract

The present disclosure provides a communication method, device and storage medium, which relate to the field of communication technology and are used to flexibly configure cyclic prefixes on time domain resources to improve the efficiency of network resource use. The method includes: receiving or transmitting a signal on a time domain resource, the time domain resource includes a plurality of symbols, 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.

Description

Communication method, device and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a communication method, a device and a storage medium.

Background

Mobile communication continues to develop every ten years of technology, and has undergone the development of first-generation mobile communication technology (1th generation wireless systems,1G) to fifth-generation mobile communication technology (5th generation wireless systems,5G). Each transition between generations, each technological progress greatly promotes industry upgrades and economic and social developments. The mobile communication technology (2th generation wireless systems,2G) from 1G to the second generation realizes the transition from analog communication to digital communication, the mobile communication goes into thousands of households, and the mobile communication from 2G to 5G realizes the transition from voice service to data service, the transmission rate is improved by hundreds of times, and the popularization and prosperity of mobile Internet application are promoted. With the rapid development of the mobile internet, new services, new technologies and new devices are continuously emerging, and 5G is difficult to meet the requirements of flexible and diverse services in the future, and the development of the next generation mobile communication system, namely, the sixth generation mobile communication technology (6th generation wireless systems,6G) is urgently required.

6G is a conceptual wireless network mobile communication technology. Regarding how to design a 6G system, no detailed design scheme about the 6G system exists in the candidate technical collection stage, and how to configure a cyclic prefix on a time-frequency resource under the 6G system, which needs to be researched and solved.

Disclosure of Invention

The embodiment of the disclosure provides a communication method, a device and a storage medium, which are used for flexibly configuring a cyclic prefix on a time domain resource and improving the use efficiency of network resources.

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

The method comprises the steps of receiving or transmitting signals on a time domain resource, wherein the time domain resource comprises a plurality of symbols, cyclic prefixes adopted by the plurality of symbols comprise 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 that of the third cyclic prefix, and the length of the first cyclic prefix is smaller than that of the second cyclic prefix.

In yet another aspect, a communication apparatus is provided, the apparatus comprising:

The communication module is used for transmitting signals on time domain resources, the time domain resources comprise a plurality of symbols, cyclic prefixes adopted by the plurality of symbols comprise 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 that of the third cyclic prefix, and the length of the first cyclic prefix is smaller than that of the second cyclic prefix.

And the communication module is used for receiving signals on time domain resources, the time domain resources comprise a plurality of symbols, cyclic prefixes adopted by the plurality of symbols comprise 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 that of the third cyclic prefix, and the length of the first cyclic prefix is smaller than that of the second cyclic prefix.

In yet another aspect, a communication apparatus is provided that includes a memory and a processor, the memory and the processor being coupled, the memory being configured to store computer program instructions executable by the processor, the processor implementing the communication method of any of the embodiments described above when executing the computer program instructions.

In yet another aspect, a computer readable storage medium is provided, on which computer program instructions are stored, which when run on a computer (e.g. a communication device or a signal transmission device) implement the communication method of any of the above embodiments.

In a further aspect, a computer program product is provided, comprising computer program instructions which, when executed, implement the communication method of any of the embodiments described above.

According to the technical scheme provided by the embodiment of the disclosure, the use efficiency of network resources is improved by adopting cyclic prefixes with different lengths, and the time domain resources occupied by the cyclic prefixes are reduced, so that the performance of signal transmission is improved. And the scheme is beneficial to flexibly adjusting the cyclic prefix on the time domain resource for transmitting different signals according to specific requirements and network conditions so as to optimize the resource utilization and the signal transmission effect to the greatest extent.

Drawings

Fig. 1 is a schematic diagram of a 5G frame structure provided in an embodiment of the present disclosure;

Fig. 2 is a schematic diagram of a length of a slot in different subcarrier spacing configurations according to an embodiment of the present disclosure;

fig. 3 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure;

FIG. 4 is a flow chart of a communication method provided by an embodiment of the present disclosure;

fig. 5 is a time-frequency resource diagram provided in an embodiment of the present disclosure;

Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the disclosure;

Fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the disclosure;

fig. 8 is a schematic structural diagram of still another communication device according to an embodiment of the disclosure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

In the description of the present disclosure, unless otherwise indicated, "/" means "or" and, for example, a/B may mean a or B. The term "and/or" herein is merely an association relation describing the association object, and means that three kinds of relations may exist, for example, a and/or B may mean that a exists alone, a and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.

It is noted that in this disclosure, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "e.g." should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

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

(1) Among the Frame structures of the Frame NR, there are mainly two types of frames, a Normal Frame and a special Frame (SPECIAL FRAME). A normal frame consists of 10 subframes, each lasting 1 millisecond (ms), for carrying data and control information. The structure of the special frames may be adjusted according to the specific system configuration and is generally used for special transmission requirements.

(2) Subframe-NR frame structure one normal frame consists of 10 subframes, each of which lasts 0.1 millisecond (ms). Each subframe may in turn be further divided into different symbol slots (slots), each of which lasts 1 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol time. The sub-frames are divided mainly to support different types of data transmission and multi-user multi-antenna communication requirements.

(3) Symbol slots-each subframe is divided into 14 symbol slots for carrying the transmission of data and control information. In the conventional case, each symbol slot lasts 1 OFDM symbol time.

(4) OFDM symbol the frame structure of NR uses OFDM technology, one OFDM symbol duration includes a valid symbol time and a Cyclic Prefix (CP) time. The duration of each OFDM symbol depends on the number of sub-carriers, typically 71.4 microseconds.

Resource Block (RB) is a minimum allocation unit of resources in a frame structure of NR for transmission of data and control information. One resource block contains 12 subcarriers and 14 OFDM symbols, and total 1680 resource elements.

(5) Cyclic prefix CP is formed by copying the signal at the tail of an OFDM symbol to the head. The length of CP is mainly two kinds, namely a normal cyclic prefix (normal cyclic prefix) and an extended cyclic prefix (extended cyclic prefix). The regular cyclic prefix length is smaller than the extended cyclic prefix length. The cyclic prefix may be associated with other multipath component information to obtain complete information. In addition, the cyclic prefix can realize the pre-estimation of time and frequency synchronization.

In general, the frame structure of NR is a hierarchical structure consisting of frames, subframes, symbol slots, and OFDM symbols. The frame structure design can flexibly meet different types of communication requirements, and support the functions of high-speed data transmission, low-delay communication, multi-user multi-antenna communication and the like.

Fig. 1 is a schematic diagram of a 5G frame structure provided in the present disclosure, and as shown in fig. 1, although 5 GNRs support multiple subcarrier spacing, the lengths of the radio frames and the subframes are the same in different subcarrier spacing configurations. The radio frame length is 10ms and the subframe length is 1ms. The number of slots contained in each subframe is different. In the case of the normal CP, each slot contains the same number of symbols, and is 14. Shown in fig. 1 is a case where subcarrier spacing=15 Khz (normal CP).

The number of time slots included in the subframe is different under different subcarrier interval configurations, and the length of the time slots included in the subframe is also different under different subcarrier interval configurations because the length of the subframe is unchanged.

Exemplary, table 1 provides the type of cyclic prefix, the number of symbols contained in a slot, for different subcarrier spacing configurationsNumber of slots contained in a radio frameAnd the number of slots contained in one subframe

TABLE 1

Illustratively, fig. 2 is a length of a slot under different subcarrier spacing configurations provided by the present disclosure. As shown in table 1 and fig. 2, it can be seen that in case of subcarrier spacing=15 Khz (normal CP), one subframe has only 1 slot, and one radio frame contains 10 slots. One slot contains 14 OFDM symbols.

In the case of subcarrier spacing=30 Khz (normal CP), one subframe has 2 slots, and one radio frame contains 20 slots. The 1 slot contains 14 OFDM symbols.

In the case of subcarrier spacing=60 Khz (normal CP), one subframe has 4 slots, and a radio frame contains 40 slots. The 1 slot contains 14 OFDM symbols.

In the case of subcarrier spacing=120 Khz (normal CP), one subframe has 8 slots, and one radio frame contains 80 slots. The 1 slot contains 14 OFDM symbols.

In the case of subcarrier spacing=240 Khz (normal CP), one subframe has 16 slots, and one radio frame contains 160 slots. The 1 slot contains 14 OFDM symbols.

In the case of subcarrier spacing=480 Khz (normal CP), one subframe has 32 slots, and one radio frame contains 320 slots. The 1 slot contains 14 OFDM symbols.

As can be seen from the above description, the existing 5G NR frame structure includes 14 symbols for one slot in the normal CP and 12 symbols for the extended CP. As the subcarrier spacing becomes larger, the time domain symbol length becomes smaller. The specific CP length is expressed by the following formula, namely the CP length corresponding to each symbol in the extended CP, and the CP length of the first symbol and the 8 th symbol in the normal CP (the CP is 160 k) is the same and is greater than the CP of other symbols (the CP is 144 k). This design is mainly to round a slot with a length of 1ms or a fraction n of 1ms, where n is a power of 2, e.g. 2, 4, 8, 16, etc., and in addition, a CP with a length of 160k is placed on the first symbol of half of each slot, taking into account automatic gain control (Automatic Gain Control, AGC) estimation, etc.

Where K is the sampling rate and u is 0,1,2,3,4,5. Wherein, u is 0 when the subcarrier interval is 15KHz, u is 1 when the subcarrier interval is 30KHz, u is 2 when the subcarrier interval is 60KHz, u is 3 when the subcarrier interval is 120KHz, u is 4 when the subcarrier interval is 240KHz, and u is 5 when the subcarrier interval is 480 KHz.

In summary, there are NR frame structures that have problems in the following scenarios:

(1) When the network carries out joint sensing of a plurality of base stations, the CP of the existing NR frame structure limits the distance between the base stations, and when the distance between the base stations exceeds the existing CP protection range, intersymbol interference is caused, and the sensing precision is reduced. Therefore, in order to better perform multi-base station joint sensing, it is necessary to introduce a CP longer than the existing NR CP.

(2) When a terminal device (UE) performs data transmission based on Uplink resources preconfigured by a base station in an idle state or an inactive state, the UE cannot obtain a latest Uplink synchronization adjustment (UL TA) sent by the base station before sending data. If the UE is in a mobile state, this may cause a change in UL TA of the UE, and thus, the time when uplink data of the UE arrives at the base station and the time when uplink data of other UEs arrives at the base station exceed the protection range of the CP. Interference is generated between uplink data of the UE and uplink data of other UEs, so that probability of successful decoding of the uplink data of the UE by the base station is reduced, retransmission probability is increased, capacity of a network is affected, and transmission delay and energy consumption of a terminal are increased.

(3) The CPs of the uplink demodulation reference signal (Uplink Demodulation REFERENCE SIGNAL, UL DMRS) and the Sounding reference signal (Sounding REFERENCE SIGNAL, SRS) of the existing NR are the same as the CP length of the uplink data. When the base station performs UL TA estimation using the UL DMRS and SRS, the CP length of the UL DMRS and SRS limits the range of the base station that can estimate TA. When the UL TA exceeds the CP length, the base station can only estimate using a Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH), but the resources required for PRACH are relatively large, and the bandwidth is relatively small, so that the uplink channel state that can be measured is limited.

In view of this, the present disclosure provides a communication method, in which a signal is transmitted on a time domain resource, where the time domain resource includes a plurality of symbols, and cyclic prefixes employed by the plurality of symbols include at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, a length of the first cyclic prefix is smaller than the third cyclic prefix, and a length of the first cyclic prefix is smaller than the second cyclic prefix. By adopting cyclic prefixes with different lengths, the service efficiency of network resources is improved, and the time domain resources occupied by the cyclic prefixes are reduced, so that the performance of signal transmission is improved.

The technical solution provided by the embodiments of the present disclosure may be applied to various mobile communication networks, for example, a New Radio (NR) mobile communication network using a fifth generation mobile communication technology (5th generation mobile networks,5G), a future mobile communication network, or a multiple communication technology convergence system, etc., which is not limited in the embodiments of the present disclosure.

The network architecture of the mobile communication network (including but not limited to 3g,4g,5g, and future mobile communication networks) in 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. Embodiments of the present disclosure are not limited thereto.

By way of example, taking a first communication node as a base station and a second communication node as a terminal, fig. 3 shows an architecture diagram of a communication system according to an embodiment of the disclosure. As shown in fig. 3, the communication system 10 includes a plurality of base stations (e.g., base station 21 and base station 22) and a plurality of terminals (e.g., terminal 31, terminal 32, terminal 33, and terminal 34). Wherein a plurality of base stations and a plurality of terminals can be communicatively connected.

In some embodiments, a base station is used to provide wireless access services for a plurality of terminals. In particular, one base station provides at least one service coverage area (also may be referred to as a cell). Terminals entering the area may communicate with the base station via wireless signals to thereby receive wireless access services provided by the base station. There may be overlap between the service coverage areas of base stations 21 and terminals within the overlap area may receive wireless signals from multiple base stations.

In some embodiments, a base station may connect to a plurality of terminal devices, e.g., base station 21 connects terminal 31 and terminal 32. The terminal 31 and the terminal 32 may be located in the same cell, and the terminal 31 and the terminal 32 may be located in different cells. That is, one base station may provide network services to terminals of one cell, or may provide network services to terminals of a plurality of cells at the same time.

In some embodiments, the base station may be an LTE, a base station in long term evolution enhancement (long term evolution advanced, LTEA) or an evolved base station (evolutional node B, eNB or eNodeB), a base station in a 5G network, or a base station in a future communication system (e.g., 6G, etc.), etc., and the base station may include various macro base stations, micro base stations, home base stations, wireless remote, reconfigurable intelligent surfaces (reconfigurable intelligent surfaces, RISs), routers, wireless fidelity (WIRELESS FIDELITY, WIFI) devices, or various network side devices such as a primary cell (PRIMARY CELL) and a secondary cell (secondary cell).

In some embodiments, the terminal may be a device with wireless transceiving function, which may be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted, may be deployed on water (such as a ship, etc.), and may be deployed in air (such as an airplane, a balloon, a satellite, etc.). The terminals may be mobile phones (mobile phones), tablet computers (Pad), computers with wireless transceiving functionality, virtual Reality (VR) terminals, augmented reality (augmented reality, AR) terminals, wireless terminals in industrial control (industrial control), wireless terminals in unmanned (SELF DRIVING), wireless terminals in telemedicine (remote media), wireless terminals in smart grid (SMART GRID), wireless terminals in transportation security (transportation safety), wireless terminals in smart city (SMART CITY), wireless terminals in smart home (smart home), etc. Embodiments of the present disclosure are not limited to application scenarios. A terminal may also be referred to as a user, user Equipment (UE), access terminal, UE unit, UE station, mobile station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, UE device, or the like, as embodiments of the present disclosure are not limited in this respect.

It should be noted that fig. 3 is merely an exemplary frame diagram, the number of devices included in fig. 3 is not limited, the names of the respective devices are not limited, and the communication system may include other devices, such as core network devices, in addition to the devices shown in fig. 3.

The application scenario of the embodiments of the present disclosure is not limited. The system architecture and the service scenario described in the embodiments of the present disclosure are for more clearly describing 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, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of a new service scenario, the technical solutions provided by the embodiments of the present disclosure are applicable to similar technical problems.

The embodiment of the disclosure provides a communication method. As shown in fig. 4, the method comprises the steps of:

S101, receiving or transmitting a signal on a time domain resource.

In some embodiments, the first communication node transmits signals on time domain resources and, correspondingly, the second communication node receives signals on time domain resources.

In other embodiments, the second communication node transmits signals on time domain resources and, correspondingly, the first communication node receives signals on time domain resources.

The signals may include one or more signals, such as, but not limited to, sensing signals, positioning signals, data signals, control signaling, and the like.

The time domain resource comprises a plurality of symbols, and cyclic prefixes adopted by the plurality of symbols comprise 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 that of the third cyclic prefix, and the length of the first cyclic prefix is smaller than that of the second cyclic prefix.

In some embodiments, the time domain resource is any one of a radio frame, a subframe, a slot, and a minislot.

In some embodiments, the first cyclic prefix is a regular cyclic prefix and the third cyclic prefix is an extended cyclic prefix.

In some embodiments, the second cyclic prefix is less in length than the third cyclic prefix, or the second cyclic prefix is greater in length than the third cyclic prefix.

Exemplary, the second cyclic prefix length is 512 k.2 ^-u、1240k·2^-u, 692k ·

2 ^-u、418k·2^-u Or 420 k.2 ^-u.

In some embodiments, the symbols corresponding to different cyclic prefixes have different lengths.

In other embodiments, symbols corresponding to different cyclic prefixes have the same length.

In some embodiments, CP lengths of partial symbols in symbols corresponding to the same cyclic prefix are the same.

Illustratively, in the case that the number of symbols corresponding to the second cyclic prefix is 3, wherein the CP lengths of 2 symbols are the same, the CP length of the remaining one symbol is greater or less than the CP length of the 2 symbols. For example, the CP lengths of the symbols are 876k.2 ^-u and 874k.2 ^-u.

Still another example, in case that the number of symbols corresponding to the second cyclic prefix is 10, 11 or 12, wherein the CP lengths of two symbols are the same, the length of the symbol is assumed to be m, the CP lengths of the remaining symbols are the same, and the symbol length is assumed to be n, m is greater than or less than n, and both m and n are greater than 0. Or 10, 11 or 12 symbols are all the same in CP length.

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

Illustratively, in the case that the number of symbols corresponding to the second cyclic prefix is 3, CP lengths of the 3 symbols are all the same. For example, the CP length of the symbol 874k.2 ^-u or 827k.2 ^-u or 821 k.2 ^-u or 512 k.2 ^-u.

In some embodiments, the symbols with the second cyclic prefix are consecutive in one slot, either indicated by signaling, or are spaced apart.

In some embodiments, the symbols with the third cyclic prefix are consecutive in one slot, either indicated by signaling, or are spaced apart.

In some embodiments, the time domain resource comprises at least one time slot, the type of the time slot comprises 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 adopt a first cyclic prefix, the symbols in the third type time slot all adopt a third cyclic prefix, the symbols in the second type time slot adopt 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 adopt a second cyclic prefix.

Illustratively, symbols in slots in NR that employ a normal CP. Symbols in slots in which extended CP is used in NR all use extended CP.

In some embodiments, the first cyclic prefix length may be equal to the CP length of a portion of the symbols in the first type of 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 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 slot, or the length of the first cyclic prefix is equal to 144 k.2 ^-u. Wherein p may be 11, 10, 9, 7, 5, 3, 2 or 1.

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

In other embodiments, the second type of slot is not the same length as the NR slot.

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

In other embodiments, the second type slot is not the same length as one symbol in the NR.

In some embodiments, the second type of slot comprises h symbols, wherein a symbols employ a first cyclic prefix and b symbols employ a second cyclic prefix or a third cyclic prefix, wherein h = a + b, h, a, b are positive integers.

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

Illustratively, the second type of slot includes 12 symbols, 2 of the 12 symbols employing a first cyclic prefix, 10 symbols employing a second cyclic prefix or a third cyclic prefix, or 4 of the 12 symbols employing a first cyclic prefix, 8 symbols employing a second cyclic prefix or a third cyclic prefix, or 12 symbols employing a third cyclic prefix.

Still further exemplary, the second type slot includes 13 symbols, the 13 symbols satisfying any one of the following:

10 symbols of the 13 symbols adopt a first cyclic prefix, and 3 symbols adopt a second cyclic prefix;

9 symbols of the 13 symbols adopt a first cyclic prefix, and 4 symbols adopt a second cyclic prefix;

5 symbols of the 13 symbols adopt a first cyclic prefix, and 8 symbols adopt a second cyclic prefix;

11 symbols of the 13 symbols adopt a first cyclic prefix, and 2 symbols adopt a second cyclic prefix;

13 of the 13 symbols employ a second cyclic prefix;

3 symbols of the 13 symbols adopt a first cyclic prefix, and 10 symbols adopt a second cyclic prefix;

2 symbols of the 13 symbols adopt a first cyclic prefix, and 11 symbols adopt a second cyclic prefix;

1 symbol of the 13 symbols adopts a first cyclic prefix, and 12 symbols adopt a second cyclic prefix;

7 of the 13 symbols use the first cyclic prefix and 6 symbols use the third cyclic prefix.

Still further exemplary, the second type slot includes 6 symbols, 6 symbols each employing a third cyclic prefix, or 1 symbol of the 6 symbols employing a first cyclic prefix, and 5 symbols employing a second cyclic prefix or a third cyclic prefix.

In some embodiments, there are one or more guard intervals in the second type of time slot, the location of the guard interval in the second type of time slot including at least one of:

the guard interval is located after the last symbol of the second type slot;

the guard interval is located before the first symbol of the second type slot;

The guard interval is located before the first symbol of the second type slot using the second cyclic prefix or the third cyclic prefix;

The guard interval is located before the first symbol of the second type slot with the first cyclic prefix;

The guard interval is located after the last symbol of the second type slot that employs the first cyclic prefix;

The guard interval is located after the last symbol employing the second cyclic prefix or the third cyclic prefix in the second type slot.

In other embodiments, the physical channel occupies h symbols, where a symbols use a first cyclic prefix and b symbols use a second cyclic prefix or a third cyclic prefix, where h = a+b, h, a, 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. The different cyclic prefixes can correspond to the same subcarrier interval or different subcarrier intervals, or part of the symbols of the physical shared channel adopts a first cyclic prefix, and part of the symbols adopt a second cyclic prefix or a third cyclic prefix.

In some embodiments, the first communication node transmits the first signaling and the corresponding second communication node receives the first signaling. The first signaling is used to indicate the location of the second type of slot in the time domain resource and/or the location of the symbol employing the second cyclic prefix. Thus, the second communication node may determine the location of the second type of time slot in the time domain resource and/or the location of the symbol employing the second cyclic prefix based on the first signaling.

In some embodiments, the first signaling is one of Control information carried by a physical Control channel, system information block (System Information Block, SIB) signaling, medium access Control (MEDIA ACCESS Control, MAC) signaling, and radio resource Control (Radio Resource Control, RRC) signaling.

In some embodiments, after determining the symbols employing the second cyclic prefix in the time domain resource according to the first signaling, the remaining symbols employ the first cyclic prefix or the third cyclic prefix.

In some embodiments, after determining, according to the first signaling, a time slot of the second type of time slots in the time domain resource that employs the second cyclic prefix, then a time slot of the second type of time slots that is other than the time slot that employs the second cyclic prefix employs the first cyclic prefix or the third cyclic prefix.

In some embodiments, after determining the second type of time slot in the time domain resource and the symbol employing the second cyclic prefix in the second type of time slot according to the first signaling, the other symbols except the symbol employing the second cyclic prefix in the second type of time slot employ the first cyclic prefix or the third cyclic prefix.

In some embodiments, the first communication node transmits the second signaling and, correspondingly, the second communication node receives the second signaling. The second signaling is used to indicate the type of slot and/or cyclic prefix employed by the symbol in the time domain resource. Thus, the second communication node may determine, according to the second signaling, a type of time slot and/or a cyclic prefix employed by the symbol in the time domain resource. Wherein the time slots comprise uplink time slots and/or downlink time slots. The symbols include uplink symbols and/or downlink symbols.

In some embodiments, the second signaling is one of control information carried by a physical control channel, system information block SIB signaling, MAC signaling, RRC signaling.

In some embodiments, the second signaling includes at least one of first bitmap information, second bitmap information, period, and start position. The first bitmap information comprises a plurality of first indicating bits, i is used for indicating the type of an ith time slot in the time domain resource, i is a non-negative integer, and the second bitmap information comprises a plurality of second indicating bits, j is used for indicating a cyclic prefix adopted by a j symbol in the time domain resource, and j is a non-negative integer. Wherein the number of the first indication bits is 10, 20, 40, 80 or 160, etc. The starting position is used for representing a time slot position corresponding to a first indication bit in the first bitmap information or a symbol position corresponding to a first second indication bit in the second bitmap information.

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

In some embodiments, the starting position is different in different periods, and the determination is made based on the second signaling received in the different periods.

In some embodiments, a position of a symbol employing a second cyclic prefix in the time domain resource for each of a plurality of period lengths is determined based on the second bitmap information and the periods. For example, the second bitmap information includes a plurality of second indication bits, and the jth second indication bit is 0 for indicating a second cyclic prefix adopted by the jth symbol in the time domain resource of each cycle length. The number of the second indicator bits included in the second bitmap information may 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 may be other positive integer values.

In other embodiments, the second signaling includes a symbol index and a period, and the position of the symbol employing the second cyclic prefix in the time domain resource for each of the plurality of period lengths is determined based on the symbol index and the period.

In some embodiments, each time slot of the time domain resource contains two sub-slots, each equal to half of the time slot. And determining a cyclic prefix corresponding to each sub-time slot of the time domain resource according to the third bitmap information. The third bitmap information comprises a plurality of third indicating bits, the kth third indicating bit is used for indicating that a cyclic prefix adopted by the kth sub-time slot in the time domain resource is a first cyclic prefix or a third cyclic prefix, and k is a non-negative integer. The number of the third indication bits may be 10, 20, 40, 80, 160, or the like. For example, the kth third indication is 0 to indicate that the cyclic prefix adopted by the kth sub-slot in the time domain resource is the first cyclic prefix, and the kth third indication is 1 to indicate that the cyclic prefix adopted by the kth sub-slot in the time domain resource is the third cyclic prefix.

In some embodiments, the signal is received or transmitted according to a cyclic prefix corresponding to the second signaling determination signal.

In some embodiments, in the case that the signal carries data to be transmitted of the communication node in a non-connected state, the cyclic prefix corresponding to the signal is determined according to RRC signaling or SIB signaling. Wherein the unconnected state includes an idle state, an inactive state, or other new unconnected state.

In some embodiments, in the case that the signal is a sense signal, a positioning signal, or an SRS, the cyclic prefix corresponding to the signal is determined according to the cyclic prefix configuration signaling, where the cyclic prefix configuration signaling is carried in RRC signaling or SIB signaling, where for one or more sense signals, each sense signal has independent cyclic prefix configuration signaling, for one or more positioning signals, each positioning signal has independent cyclic prefix configuration signaling, and for one or more SRS, each SRS has independent cyclic prefix configuration signaling.

The uplink signal adopts a first cyclic prefix when the uplink signal transmits connection state data, and adopts a second cyclic prefix when the uplink signal is used for a sensing function or a positioning function or an SRS or an UL DMRS, or adopts a first cyclic prefix when the uplink signal is used for the sensing function or the positioning function, or adopts a second cyclic prefix when the uplink signal is used for the sensing function or the positioning function, and adopts the first cyclic prefix when the uplink signal is used for the sensing function or the positioning function. Wherein, the uplink signal for the sensing function or the positioning function adopts the second cyclic prefix or the first cyclic prefix, and the time slot of the second cyclic prefix is configured by the base station signaling. The remaining time slots employ a first cyclic prefix.

Still further exemplary, the uplink signal employs a first cyclic prefix when the uplink signal transmits connection state data, and a third cyclic prefix when the uplink signal is used for a sensing function or a positioning function or an SRS or an UL DMRS, or the first cyclic prefix when the uplink signal is used for a sensing function or a positioning function, or the third cyclic prefix is used for an uplink signal for a sensing function or a positioning function on a part of time slots, and the first cyclic prefix is used for an uplink signal for a sensing function or a positioning function on a part of time slots. Wherein, the uplink signal 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 the base station signaling. The remaining time slots employ a first cyclic prefix.

In some embodiments, where 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 from the cyclic prefix of the symbol carrying the synchronization channel.

Illustratively, the cyclic prefix of the physical downlink shared channel is determined according to downlink control information carried by the physical downlink control channel.

In some embodiments, the physical shared channel is transmitted with a first cyclic prefix on a first time slot, the physical shared channel is transmitted with a second cyclic prefix on a second time slot, or the physical shared channel is transmitted with a first cyclic prefix on the first time slot, the physical shared channel is transmitted with a third cyclic prefix on the second time slot, or the physical shared channel is transmitted with a second cyclic prefix on the first time slot, the physical shared channel is transmitted with a third cyclic prefix on the second time slot, or the physical shared channel is transmitted with a third cyclic prefix or a second cyclic prefix in an idle state or an inactive state, and the physical shared channel is transmitted with the first cyclic prefix in a connected state. Wherein the physical shared channel comprises a physical uplink shared channel and/or a physical downlink shared channel.

In some embodiments, the physical shared channel is transmitted with a first cyclic prefix in a first symbol of the target time slot and a second cyclic prefix in a second symbol of the target time slot, or the physical shared channel is transmitted with the first cyclic prefix in the first symbol of the target time slot and the physical shared channel is transmitted with a third cyclic prefix in the second symbol of the target time slot, or the physical shared channel is transmitted with the second cyclic prefix in the first symbol of the target time slot and the physical shared channel is transmitted with the third cyclic prefix in the second symbol of the target time slot, wherein the physical shared channel comprises a physical uplink shared channel and/or a physical downlink shared channel.

In some embodiments, in the time domain resource, the type of the uplink time slot and the type of the downlink time slot are configured independently, or the type of the uplink time slot is determined according to the type of the downlink time slot.

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

In some examples, the physical uplink shared channel employs a second cyclic prefix or a third cyclic prefix, and the physical downlink shared channel employs a first cyclic prefix. One implementation method is that the cyclic prefix of the physical downlink shared channel is determined according to subcarrier spacing or a default value (non-signaling indication), and the cyclic prefix of the physical uplink shared channel is determined according to signaling, and the other 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, and the example is only one configuration result.

In other examples, the physical downlink shared channel employs a second cyclic prefix or a third cyclic prefix and the physical uplink shared channel employs a first cyclic prefix. One implementation method is that the cyclic prefix of the physical uplink shared channel is determined according to subcarrier spacing or a default value (non-signaling indication), and the cyclic prefix of the physical downlink shared channel is determined according to signaling, and the other 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, and the example is only one configuration result.

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

In some embodiments, the SIB signaling or RRC message or downlink control information (DCI carried by the PDCCH) indicates the type of slot (including an indication of a cyclic prefix) and/or the symbol type (including an indication of a cyclic prefix), and the channel or signal determines the cyclic prefix it employs based on the slot type and/or the symbol type in which it is located. The uplink and downlink time slots can be indicated respectively, or uplink and downlink can be not distinguished, and the time slots can be indicated uniformly.

For example, 40 bits of bitmap information (bitmap) indicating the type of 40 slots, each bit representing a first type of slot (first cyclic prefix or third cyclic prefix) and a second type of slot, the signal or channel determining its cyclic prefix type based on the type of slot in which it is located. A 140 bit bitmap indicating the cyclic prefix type of 140 symbols within 10 slots, each bit representing whether it is a first cyclic prefix or a second cyclic prefix, or whether it is a first cyclic prefix or a third cyclic prefix, or whether it is a second cyclic prefix or a third cyclic prefix, the signal or channel determining its cyclic prefix type based on the symbol type in which it is located. The two indication modes can also be combined, for example, a time slot bitmap indicates a time slot type, the time slot type comprises a first type time slot and a second type time slot, and a symbol bitmap further indicates a cyclic prefix type corresponding to a symbol in the second type time slot.

In some embodiments, the sum of the guard interval, cyclic prefix, symbol length is the same as or similar to one slot length.

In some embodiments, different cyclic prefixes correspond to symbols of different subcarrier spacings.

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

In some embodiments, the first communication node transmits the third signaling and, correspondingly, the second communication node receives the third signaling. The third signaling is used to indicate subcarrier spacing and/or cyclic prefix supported by the time domain resources. Thus, the second communication node may determine the subcarrier spacing and/or the cyclic prefix supported by the time domain resource according to the third signaling.

In some embodiments, the third signaling is RRC signaling.

In some embodiments, the first communication node transmits fourth signaling and the second communication node receives the fourth signaling, respectively. The fourth signaling is used for indicating the subcarrier spacing and/or the cyclic prefix adopted by the time domain resource and the symbol position corresponding to the adopted subcarrier spacing and/or the cyclic prefix. Thus, the second communication node may determine, according to the fourth signaling, the employed subcarrier spacing and/or cyclic prefix, and the symbol position corresponding to the employed subcarrier spacing and/or cyclic prefix.

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

In some embodiments, each of the plurality of channel types corresponds to a plurality of subcarrier spacings. Wherein the multiple channel types include Physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH), physical Uplink shared channel (SHARED CHANNEL, PUSCH), channel state Information reference signal (CHANNEL STATE Information REFERENCE SIGNAL, CSI-RS), SRS and phase reference signal (PHASE REFERENCE SIGNAL, PR-

RS). Therefore, when uplink and downlink switching is performed, the switching interval is defined by taking a symbol as a unit, and the uplink and downlink switching time may only occupy part of the duration of one symbol, so that the remaining resources of the guard interval cannot be used, and resource waste is caused. Because there are multiple subcarrier spacings with multiple symbol lengths, there are also multiple cyclic prefixes.

Exemplary, as shown in fig. 5, one PUSCH occupies a portion a and a portion B, where the symbol of the portion a uses a subcarrier spacing of 30KHz and a corresponding cyclic prefix, the symbol of the portion B uses a subcarrier spacing of 15KHz and a corresponding cyclic prefix, or the symbol of the portion a uses a subcarrier spacing of 15KHz and a corresponding cyclic prefix when transmitting, and the symbol of the portion SRS uses a subcarrier spacing of 30KHz and a corresponding cyclic prefix when transmitting.

Illustratively, when the uplink signal transmits connection state data, the uplink signal uses a first cyclic prefix, and when the uplink signal transmits idle state (non-connection state) data, the uplink signal uses a second cyclic prefix or a third cyclic prefix. Specifically, one implementation method is that the cyclic prefix of the physical uplink shared channel in the connection state is determined or a default value (non-signaling indication) according to the subcarrier interval, and the cyclic prefix of the physical uplink shared channel in the idle state or the inactive state (non-connection state) is determined according to signaling.

For example, in the existing 2-STEP PRACH procedure, when MsgA is transmitted, preamble is not transmitted any more, only PUSCH is transmitted, the PUSCH symbol adopts the second cyclic prefix or the third cyclic prefix, the PUSCH symbol transmitted in the connection state adopts the first cyclic prefix, or the PUSCH symbol transmitted in the connection state adopts the first cyclic prefix in the access procedure, or the PUSCH symbol transmitted in the connection state adopts the second cyclic prefix in the access procedure, the PUSCH symbol transmitted in the connection state adopts the first cyclic prefix, and the PUSCH symbol transmitted in the connection state adopts the second cyclic prefix.

When the PUSCH of the access procedure adopts the second cyclic prefix, the second cyclic prefix is also adopted when other PUSCHs are transmitted on the symbol corresponding to the PUSCH adopting the second cyclic prefix.

For example, after the PUSCH resources adopting 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, the dynamically scheduled PUSCH is transmitted by adopting the second cyclic prefix by default, otherwise, the dynamically scheduled PUSCH is transmitted by adopting the first cyclic prefix.

Specifically, one implementation method is that the cyclic prefix of the connection state PUSCH is determined according to the subcarrier interval or a default value (non-signaling indication), the cyclic prefix of the access first step PUSCH is determined according to signaling, and another way is that the cyclic prefix of the access first step PUSCH and the cyclic prefix of the connection state PUSCH are respectively indicated by signaling, which is only one configuration in this example.

Still further exemplary, the uplink signal employs a first cyclic prefix when the uplink signal transmits connection state data, and a third cyclic prefix when the uplink signal transmits idle state data. The idle state includes a non-connected state, an idle state or a non-active state of an existing NR, and a non-connected state of 6G.

For example, when existing 2-STEP PRACH, MSGA is transmitted, preamble is not transmitted any more, only PUSCH is transmitted, the symbol of the PUSCH adopts a third cyclic prefix, and the symbol of the PUSCH transmitted in a connection state adopts a first cyclic prefix;

Or the third cyclic prefix is adopted for the symbols of part or all of the PUSCHs in the access process, and the first cyclic prefix is adopted for the symbols of the PUSCHs transmitted in the connection state;

Or in the access process, the symbols of part or all of the PUSCHs adopt a third cyclic prefix, the connection state is adopted, the symbols of the PUSCHs transmitted on part of the time slots adopt a first cyclic prefix, and the symbols of the PUSCHs transmitted on part of the time slots adopt the third cyclic prefix;

wherein, the PUSCH uses the third cyclic prefix, or the first cyclic prefix, and is configured by the base station signaling.

When the PUSCH in the access process adopts a third cyclic prefix, when other PUSCHs are transmitted on the symbol corresponding to the PUSCH adopting the third cyclic prefix, the PUSCH also adopts the third cyclic prefix;

For example, after the PUSCH resource adopting the third cyclic prefix is periodically preconfigured by the base station, if the dynamically scheduled PUSCH is transmitted on the PUSCH corresponding symbol of the third cyclic prefix, the dynamically scheduled PUSCH is transmitted by adopting the third cyclic prefix by default, otherwise, the dynamically scheduled PUSCH is transmitted by adopting the first cyclic prefix.

Still another example, one PUSCH symbol includes a symbol transmitting PUSCH corresponding data and a symbol transmitting PUSCH corresponding UL DMRS. Wherein, a second cyclic prefix is adopted for a certain one or a plurality of UL DMRS corresponding symbols of the PUSCH, and a first cyclic prefix is adopted for a PUSCH transmission data corresponding symbol;

Or one PUSCH symbol includes a symbol for transmitting PUSCH corresponding data and a symbol for transmitting PUSCH corresponding UL DMRS, where one or more UL DMRS corresponding symbols of PUSCH use a third cyclic prefix, and the PUSCH transmission data corresponding symbol uses a first cyclic prefix;

Or the part of the uplink signals for transmitting the SRS adopts a first cyclic prefix, and the part of the uplink signals for transmitting the SRS adopts a second cyclic prefix;

Or the first cyclic prefix is adopted for the part of the uplink signals for transmitting the SRS, and the third cyclic prefix is adopted for the part of the uplink signals for transmitting the SRS.

Illustratively, the base station transmits cyclic prefix indication signaling, such as SIB signaling or RRC signaling, where the cyclic prefix indication signaling includes bitmap information, the bitmap information includes a plurality of indication bits, and an r-th indication bit is used to indicate whether a cyclic prefix adopted by an r-th sub-slot in the time domain resource is a first cyclic prefix (e.g., a normal CP of NR) or a third cyclic prefix (e.g., an extended CP of NR), and r is a non-negative integer. And the base station selects corresponding cyclic prefix to transmit data or receives the data sent by the terminal according to the cyclic prefix type of the sub-time slot where the data is located.

The terminal receives a cyclic prefix indication signaling, such as SIB signaling or RRC signaling, sent by the base station, wherein the cyclic prefix indication signaling comprises bitmap information, the bitmap information comprises a plurality of indication bits, an r-th indication bit is used for indicating whether a cyclic prefix adopted by an r-th sub-time slot in a time domain resource is a first cyclic prefix (such as a normal CP of NR) or a third cyclic prefix (such as an extended CP of NR), and r is a non-negative integer. And the terminal selects corresponding cyclic prefix to transmit data according to the cyclic prefix type of the sub-time slot in which the data is positioned, or receives the data sent by the base station.

And determining the cyclic prefix type according to the cyclic prefix indication signaling when the cyclic prefix indication signaling is received. The uplink and downlink cyclic prefixes can be indicated respectively, for example, the downlink cyclic prefix is determined by adopting a default mode, the uplink cyclic prefix is determined by adopting a cyclic prefix indication signaling, or the uplink cyclic prefix is determined by adopting a default mode, the downlink cyclic prefix is determined by adopting a cyclic prefix indication signaling, or the uplink and the downlink are determined by adopting the corresponding cyclic prefix indication signaling.

Based on the method, by adopting cyclic prefixes with various lengths, the use efficiency of network resources can be improved, and the time domain resources occupied by the cyclic prefixes can be reduced, so that the performance of signal transmission is improved.

The foregoing description of the embodiments of the present disclosure has been presented primarily in terms of methods. A communication device for performing the communication method in any of the embodiments described above and possible implementations thereof is also shown below. It will be appreciated that the communication device includes corresponding hardware structures and/or software modules performing the functions for the purpose of the communication method, and those skilled in the art will readily appreciate that the various example algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The embodiment of the disclosure may divide the functional modules of the communication device according to the embodiment of the method described above, for example, each functional module may be divided for each function, or two or more functions may be integrated into one functional module. The integrated modules described above may be implemented in hardware, or in the form of software. It should be noted that, in the embodiment of the present disclosure, the division of the modules is merely a logic function division, and other division manners may be implemented in actual practice. The following description will take an example of dividing each function module into corresponding functions.

Fig. 6 is a communication device provided in an embodiment of the present disclosure. The communication device 60 comprises a communication module 61 and a processing module 62.

The communication module 61 is configured to transmit a signal 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, a length of the first cyclic prefix is smaller than the third cyclic prefix, and a length of the first cyclic prefix is smaller than the second cyclic prefix.

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

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

In some embodiments, the second signaling includes at least one of first bitmap information, second bitmap information, a period, and a start position, wherein the first bitmap information includes a plurality of first indication bits, i is a non-negative integer, and i is a type of an i-th slot in the time domain resource, and the second bitmap information includes a plurality of second indication bits, j is a non-negative integer, and j is a cyclic prefix employed by a j-th symbol in the time domain resource.

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

In some embodiments, the communication module 61 is configured to determine a cyclic prefix corresponding to the signal according to the second signaling, and receive or transmit the signal.

In some embodiments, the physical shared channel is transmitted with a first cyclic prefix on a first time slot, the physical shared channel is transmitted with a second cyclic prefix on a second time slot, or the physical shared channel is transmitted with a first cyclic prefix on the first time slot, the physical shared channel is transmitted with a third cyclic prefix on the second time slot, or the physical shared channel is transmitted with a second cyclic prefix on the first time slot, the physical shared channel is transmitted with a third cyclic prefix on the second time slot, or the physical shared channel is transmitted with a third cyclic prefix or a second cyclic prefix in an idle state or an inactive state, and the physical shared channel is transmitted with the first cyclic prefix in a connected state.

In some embodiments, in the case that the signal carries data to be transmitted of the communication node in a non-connected state, the cyclic prefix corresponding to the signal is determined according to RRC signaling or SIB signaling.

In some embodiments, in the case that the signal is a sensing signal or a positioning signal or an SRS, the cyclic prefix corresponding to the signal is determined according to the cyclic prefix configuration signaling, where the cyclic prefix configuration signaling is carried in RRC signaling or SIB signaling, where for one or more sensing signals, each sensing signal has independent cyclic prefix configuration signaling, for one or more positioning signals, each positioning signal has independent cyclic prefix configuration signaling, and for one or more SRS, each SRS has independent cyclic prefix configuration signaling.

In some embodiments, the signal is a physical control channel or a physical shared channel, and the cyclic prefix of the symbol carrying the physical control channel or the physical control channel is determined from the cyclic prefix of the symbol carrying the synchronization channel.

In some embodiments, the second type of slot comprises h symbols, wherein a symbols use the first cyclic prefix, 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 comprises h symbols, wherein a symbols use the first cyclic prefix, b symbols use the second cyclic prefix or the third cyclic prefix, wherein h=a+b, h, a, b are positive integers.

In some embodiments, the second type of slot includes 12 symbols, 2 of the 12 symbols employing a first cyclic prefix, 10 symbols employing a second cyclic prefix or a third cyclic prefix, or 4 of the 12 symbols employing a first cyclic prefix, 8 symbols employing a second cyclic prefix or a third cyclic prefix, or 12 symbols employing a third cyclic prefix.

In some embodiments, the second type of slot includes 13 symbols, the 13 symbols satisfying any one of the following:

13 of the 13 symbols employ a second cyclic prefix;

In some embodiments, the second type of slot includes 6 symbols, 6 symbols all employing a third cyclic prefix, or 1 symbol of the 6 symbols employing a first cyclic prefix, 5 symbols employing a second cyclic prefix or the third cyclic prefix.

the guard interval is located after the last symbol of the second type slot;

the guard interval is located before the first symbol of the second type slot;

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

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

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

In some embodiments, the processing module 62 is configured to determine the employed subcarrier spacing and/or the cyclic prefix and a symbol position corresponding to the employed subcarrier spacing and/or the cyclic prefix according to the fourth signaling.

Fig. 7 is another communication device provided by an embodiment of the present disclosure. The communication device 70 includes:

A communication module 71.

A communication module 71 for receiving signals on time domain resources. Wherein, the time domain resource and the related content of the signal are described above, and are not described herein.

In some embodiments, the communication module 71 is configured to send first signaling indicating a second type of slot position in the time domain resource and/or a symbol employing a second cyclic prefix.

In some embodiments, the communication module 71 is configured to send second signaling indicating a type of time slot and/or a cyclic prefix employed by the symbol in the time domain resource.

Wherein, the content related to the first signaling and the second signaling is described above, and is not described herein.

In the case of implementing the functions of the integrated modules in the form of hardware, the embodiments of the present disclosure also provide a possible structure of a communication device for performing the communication method provided by the embodiments of the present disclosure. As shown in fig. 8, the communication device 800 includes a communication interface 803, a processor 802, and a bus 804. Optionally, the communication device may further comprise a memory 801.

The processor 802 may be any logic block, module, and circuitry that implements or performs the various examples described in connection with the embodiments of the disclosure. The processor 802 may be a central processor, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with embodiments of the disclosure. The processor 802 may also be a combination that implements computing functionality, e.g., comprising one or more microprocessor combinations, a combination of DSP and microprocessor, etc.

A communication interface 803 for connecting with other devices through a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc.

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

As a possible implementation, the memory 801 may exist separately from the processor 802, and the memory 801 may be connected to the processor 802 through the bus 804 for storing instructions or program code. The processor 802, when calling and executing instructions or program code stored in the memory 801, is capable of implementing the communication methods provided by the embodiments of the present disclosure.

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

Bus 804, which may be an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The bus 804 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.

Some embodiments of the present disclosure provide a computer readable storage medium (e.g., a non-transitory computer readable storage medium) having stored therein computer program instructions that, when run on a computer, cause the computer to perform a communication method as described in any of the above embodiments.

In an exemplary embodiment, the computer may be the signal transmission device described above, and the present disclosure is not limited to a specific form of the computer.

In some examples, the computer-readable storage medium described above may include, but is not limited to, magnetic storage devices (e.g., hard Disk, floppy Disk, or magnetic strips, etc.), optical disks (e.g., compact Disk (CD), digital versatile Disk (DIGITAL VERSATILE DISK, DVD), etc.), smart cards, and flash Memory devices (e.g., erasable programmable read-Only Memory (EPROM), cards, sticks, key drives, etc.). Various computer-readable storage media described in this disclosure may represent one or more devices and/or other machine-readable storage media for storing information. The term "machine-readable storage medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

The disclosed embodiments provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the communication method according to any of the above embodiments.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions within the technical scope of the disclosure should be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method of communication, the method comprising:

a signal is received or transmitted on a time domain resource, the time domain resource comprising a plurality of symbols, the plurality of symbols employing cyclic prefixes comprising at least two of a first cyclic prefix, a second cyclic prefix, and a third cyclic prefix, the first cyclic prefix having a length less than the third cyclic prefix, and the first cyclic prefix having a length less than the second cyclic prefix.

2. The method of claim 1, wherein the time domain resource is any one of a radio frame, a subframe, a time slot, and a micro-slot.

3. The method of claim 1, wherein the first cyclic prefix is a regular cyclic prefix and the third cyclic prefix is an extended cyclic prefix.

4. The method of claim 1, wherein the time domain resources comprise at least one time slot, wherein the type of time slot comprises at least one of a first type of time slot, a second type of time slot, and a third type of time slot, wherein symbols in the first type of time slot each employ the first cyclic prefix, wherein symbols in the third type of time slot each employ the third cyclic prefix, wherein symbols in the second type of time slot each employ at least two of the first cyclic prefix, the second cyclic prefix, the third cyclic prefix, or wherein symbols in the second type of time slot each employ the second cyclic prefix.

5. 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 employing the second cyclic prefix is determined from the first signaling.

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

7. The method of claim 6, wherein the second signaling comprises at least one of first bitmap information, second bitmap information, a period, and a start position, wherein the first bitmap information comprises a plurality of first indicator bits, i is a non-negative integer, for indicating a type of an i-th slot in the time domain resource, and wherein the second bitmap information comprises a plurality of second indicator bits, j is a non-negative integer, for indicating a cyclic prefix employed by a j-th symbol in the time domain resource.

8. The method of claim 6, wherein the second signaling is one of control information carried by a physical control channel, system information block SIB signaling, medium access control MAC signaling, radio resource control RRC signaling.

9. The method of claim 6, wherein the cyclic prefix corresponding to the signal is determined according to the second signaling, and the signal is received or transmitted.

10. The method of claim 1, wherein the step of determining the position of the substrate comprises,

A physical shared channel is transmitted with the first cyclic prefix on a first time slot and the physical shared channel is transmitted with the second cyclic prefix on a second time slot, or

The physical shared channel transmitting on the first time slot with the first cyclic prefix and the physical shared channel transmitting on the second time slot with the third cyclic prefix, or

The physical shared channel transmitting on the first time slot with the second cyclic prefix and the physical shared channel transmitting on the second time slot with the third cyclic prefix, or

And the physical shared channel adopts the third cyclic prefix or the second cyclic prefix to transmit in an idle state or a non-activated state, and adopts the first cyclic prefix to transmit in a connected state.

11. The method of claim 1, wherein the step of determining the position of the substrate comprises,

The physical shared channel is transmitted by the first cyclic prefix in the first symbol of the target time slot and by the second cyclic prefix in the second symbol of the target time slot, or

The physical shared channel is transmitted by adopting the first cyclic prefix in the first symbol of the target time slot, and the physical shared channel is transmitted by adopting the third cyclic prefix in the second symbol of the target time slot, or

The physical shared channel is transmitted by adopting the second cyclic prefix in the first symbol of the target time slot, and the physical shared channel is transmitted by adopting the third cyclic prefix in the second symbol of the target time slot.

12. The method according to claim 1, wherein in case the signal carries data to be transmitted of 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 of claim 1, wherein in the case where the signal is a sense signal, a positioning signal, or a sounding reference signal, SRS, a corresponding cyclic prefix for the signal is determined based on cyclic prefix configuration signaling carried in RRC signaling or SIB signaling, wherein for one or more sense signals, each sense signal has independent cyclic prefix configuration signaling, for one or more positioning signals, each positioning signal has independent cyclic prefix configuration signaling, and for one or more SRS, each SRS has independent cyclic prefix configuration signaling.

14. The method of claim 1, wherein the signal is a physical control channel or a physical shared channel, and wherein the cyclic prefix of the symbol carrying the physical control channel or the physical control channel is determined based on the cyclic prefix of the symbol carrying the synchronization channel.

15. The method of claim 1, wherein the type of uplink time slot and the type of downlink time slot in the time domain resource are configured independently, or wherein the type of uplink time slot is determined according to the type of downlink time slot.

16. The method of claim 1, wherein the cyclic prefix of the uplink symbol and the cyclic prefix of the downlink symbol are configured independently in the time domain resource, or wherein the cyclic prefix of the uplink symbol is determined according to the cyclic prefix of the downlink symbol.

17. The method of claim 4, wherein the second type of slot comprises h symbols, wherein a symbols use the first cyclic prefix, b symbols use the second cyclic prefix or the third cyclic prefix, wherein h = a + b, h, a, b are positive integers, or wherein the physical channel comprises h symbols, wherein a symbols use the first cyclic prefix, b symbols use the second cyclic prefix or the third cyclic prefix, and wherein h = a + b, h, a, b are positive integers.

18. The method of claim 17, wherein the second type of slot comprises 12 symbols, 2 of the 12 symbols employ the first cyclic prefix, 10 symbols employ the second cyclic prefix or the third cyclic prefix, or 4 of the 12 symbols employ the first cyclic prefix, 8 symbols employ the second cyclic prefix or the third cyclic prefix, or the 12 symbols employ the third cyclic prefix.

19. The method of claim 17, wherein the second type of slot comprises 13 symbols, the 13 symbols satisfying any one of:

10 symbols of the 13 symbols adopt the first cyclic prefix, and 3 symbols adopt the second cyclic prefix;

9 symbols of the 13 symbols adopt the first cyclic prefix, and 4 symbols adopt the second cyclic prefix;

5 symbols of the 13 symbols adopt the first cyclic prefix, and 8 symbols adopt the second cyclic prefix;

11 symbols of the 13 symbols adopt the first cyclic prefix, and 2 symbols adopt the second cyclic prefix;

13 symbols of the 13 symbols adopt the second cyclic prefix;

3 symbols of the 13 symbols adopt the first cyclic prefix, and 10 symbols adopt the second cyclic prefix;

2 symbols of the 13 symbols adopt the first cyclic prefix, and 11 symbols adopt the second cyclic prefix;

1 symbol of the 13 symbols adopts the first cyclic prefix, and 12 symbols adopt the second cyclic prefix;

7 of the 13 symbols employ the first cyclic prefix and 6 symbols employ the third cyclic prefix.

20. The method of claim 17, wherein the second type of slot comprises 6 symbols, wherein the 6 symbols all use the third cyclic prefix, or wherein 1 symbol of the 6 symbols uses the first cyclic prefix, and wherein 5 symbols use the second cyclic prefix or the third cyclic prefix.

21. The method of claim 4, wherein there are one or more guard intervals in the second type of time slot, the location of the guard intervals in the second type of time slot comprising at least one of:

the guard interval is located after the last symbol of the second type slot;

The guard interval is located before the first symbol of the second type slot;

the guard interval is located before a first symbol employing the second cyclic prefix or a third cyclic prefix in the second type slot;

the guard interval is located before a first symbol of the second type slot that employs the first cyclic prefix;

22. The method of claim 1, wherein symbols employing the second cyclic prefix are consecutive in a time slot, or indicated by signaling, or are spaced apart.

23. The method of claim 1, wherein symbols employing the third cyclic prefix are consecutive in a time slot, or indicated by signaling, or are spaced apart.

24. The method of claim 1, wherein symbols corresponding to different cyclic prefixes have different lengths.

25. The method of claim 1, wherein symbols corresponding to different cyclic prefixes have the same length.

26. The method of claim 1, wherein different cyclic prefixes correspond to symbols of different subcarrier spacings.

27. The method of claim 1, wherein 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 from the third signaling.

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

30. A communication device comprising a memory and a processor, the memory and the processor being coupled, the memory being for storing instructions executable by the processor, when executing the instructions, performing the method of any one of claims 1 to 29.

31. A computer readable storage medium having stored thereon computer instructions which, when run on a communication device, cause the communication device to perform the method of any of claims 1 to 29.