Communication method, terminal, and network device

Abstract

The present disclosure relates to a communication method, a terminal, and a network device. The communication method comprises: a terminal receiving resource indication information; and on the basis of the resource indication information, determining a first frequency-domain resource used by a downlink, wherein the first frequency-domain resource comprises N sub-band resources, the N sub-band resources are discontinuous, and N is an integer greater than or equal to 2. In embodiments of the present disclosure, a first frequency-domain resource used by a downlink of a terminal comprises a plurality of sub-band resources, and the plurality of sub-band resources are discontinuous, thereby reducing the impact of inter-frequency interference, improving transmission efficiency and transmission quality, and thus improving the performance of a communication system.

Description

Communication method, terminal and network device TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication method, a terminal and a network device. BACKGROUND

[0002] In the related art, there is inter-frequency interference in transmission. Such interference can affect the transmission quality of signals and reduce the performance of a communication system.

[0003] SUMMARY

[0004] Embodiments of the present disclosure provide a communication method, a terminal and a network device.

[0005] According to a first aspect of embodiments of the present disclosure, a communication method is provided, performed by a terminal, and the method comprises:

[0006] receiving resource indication information;

[0007] determining, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being non-contiguous, and N being an integer greater than or equal to 2.

[0008] According to a second aspect of embodiments of the present disclosure, a communication method is provided, performed by a network device, and the method comprises:

[0009] sending resource indication information, the resource indication information being used by a terminal to determine a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being non-contiguous, and N being an integer greater than or equal to 2.

[0010] According to a third aspect of embodiments of the present disclosure, a terminal is provided, comprising:

[0011] a transceiver module, configured to receive resource indication information;

[0012] a processing module, configured to determine, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being non-contiguous, and N being an integer greater than or equal to 2.

[0013] According to a fourth aspect of embodiments of the present disclosure, a network device is provided, comprising:

[0014] a transceiver module, configured to send resource indication information, the resource indication information being used by a terminal to determine a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being non-contiguous, and N being an integer greater than or equal to 2.

[0015] According to a fifth aspect of the embodiments of the present disclosure, a terminal is provided, comprising:

[0016] one or more processors;

[0017] The terminal is configured to perform the communication method according to the first aspect.

[0018] According to a sixth aspect of the embodiments of the present disclosure, a network device is provided, comprising:

[0019] one or more processors;

[0020] The network device is configured to perform the communication method according to the second aspect.

[0021] According to a seventh aspect of the embodiments of the present disclosure, a communication system is provided, comprising:

[0022] a terminal configured to perform the communication method according to the first aspect; and

[0023] a network device configured to perform the communication method according to the second aspect.

[0024] According to an eighth aspect of the embodiments of the present disclosure, a storage medium is provided, which stores instructions, when the instructions are executed on a communication device, the communication device performs the communication method according to the first aspect or the second aspect.

[0025] According to a ninth aspect of the embodiments of the present disclosure, a computer program product is provided, comprising a computer program, when the computer program is executed on a communication device, the communication device performs the communication method according to the first aspect or the second aspect.

[0026] In the above embodiments, the first frequency domain resource used by the downlink of the terminal comprises a plurality of sub-band resources, and the plurality of sub-band resources are discontinuous, thereby reducing the influence of inter-frequency interference, improving transmission efficiency and transmission quality, and further improving the performance of the communication system. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0028] FIG. 1A is an exemplary schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.

[0029] FIG. 1B is an exemplary schematic diagram of beam squint according to an embodiment of the present disclosure.

[0030] FIG. 1C is an exemplary schematic diagram of a radio frequency link, according to an embodiment of the present disclosure.

[0031] FIG. 1D is an exemplary schematic diagram of beam behavior-1, according to an embodiment of the present disclosure.

[0032] FIG. 1E is an exemplary schematic diagram of beam behavior-2, according to an embodiment of the present disclosure.

[0033] FIG. 1F is a simulation diagram of beam energy, according to an embodiment of the present disclosure.

[0034] FIG. 1G is an exemplary schematic diagram of a frequency domain interval in a continuous frequency domain resource allocated to a terminal, according to an embodiment of the present disclosure.

[0035] FIG. 1H is an exemplary schematic diagram of a sub-band resource, according to an embodiment of the present disclosure.

[0036] FIG. 2A is an exemplary interaction schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0037] FIG. 2B is an exemplary interaction schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0038] FIG. 2C is an exemplary interaction schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0039] FIG. 3A is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0040] FIG. 3B is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0041] FIG. 3C is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0042] FIG. 3D is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0043] FIG. 4A is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0044] FIG. 4B is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0045] FIG. 4C is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0046] FIG. 4D is an exemplary flow schematic diagram of a communication method, according to an embodiment of the present disclosure.

[0047] FIG. 5 is an exemplary interaction diagram of a communication method according to an embodiment of the present disclosure.

[0048] FIG. 6A is an exemplary schematic diagram of a structure of a terminal according to an embodiment of the present disclosure.

[0049] FIG. 6B is an exemplary schematic diagram of a structure of a network device according to an embodiment of the present disclosure.

[0050] FIG. 7A is an exemplary schematic diagram of a structure of a communication device according to an embodiment of the present disclosure.

[0051] FIG. 7B is an exemplary schematic diagram of a structure of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] Embodiments of the present disclosure provide a communication method, a terminal and a network device.

[0053] In a first aspect, embodiments of the present disclosure provide a communication method, performed by a terminal, the method comprising:

[0054] receiving resource indication information;

[0055] determining, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being non-continuous, N being an integer greater than or equal to 2.

[0056] In the above embodiments, the first frequency domain resource used by the downlink of one terminal comprises a plurality of sub-band resources, and the plurality of sub-band resources are non-continuous, i.e., a frequency domain interval is arranged between each adjacent sub-band resource. The frequency domain interval bandwidth part can be in a manner of not transmitting data or allocated to other users for use, thereby reducing the influence of inter-frequency interference, improving transmission efficiency and transmission quality, and further improving the performance of the communication system.

[0057] In some embodiments in combination with the first aspect, in some embodiments, the resource indication information comprises first indication information and N-1 second indication information, the first indication information being used to indicate a continuous second frequency domain resource, and each of the second indication information being used to indicate one frequency domain interval.

[0058] The determining, according to the resource indication information, the first frequency domain resource used by the downlink comprises:

[0059] determining the first frequency domain resource according to the second frequency domain resource and N-1 frequency domain intervals indicated by the N-1 second indication information.

[0060] In the above embodiments, the first indication information can be used to allocate continuous frequency domain resources of the downlink to the terminal, and the second indication information can be used to separately indicate the frequency domain interval in the continuous frequency domain resources.

[0061] In some embodiments of the first aspect, in some embodiments, the second indication information is used to indicate at least one of the following parameters of a frequency domain interval:

[0062] a starting subcarrier index of the frequency domain interval;

[0063] a starting physical resource block (PRB) index of the frequency domain interval;

[0064] a terminal subcarrier index of the frequency domain interval;

[0065] a terminal PRB index of the frequency domain interval;

[0066] a number of continuous subcarriers of the frequency domain interval;

[0067] a number of continuous PRBs of the frequency domain interval.

[0068] In the above embodiments, the indication parameters of the frequency domain interval by the second indication information are defined.

[0069] In some embodiments of the first aspect, in some embodiments, the resource indication information includes the first indication information and activation information, the first indication information is used to indicate continuous second frequency domain resources, and the activation information is used to activate a first frequency domain resource pattern in a plurality of pre-configured frequency domain resource patterns, the first frequency domain resource pattern including N-1 unavailable frequency domain resources.

[0070] The determining of the first frequency domain resource used by the downlink according to the resource indication information includes:

[0071] determining the first frequency domain resource according to the second frequency domain resources and the N-1 unavailable frequency domain resources in the first frequency domain resource pattern.

[0072] In the above embodiments, the first indication information can be used to allocate continuous frequency domain resources of the downlink to the terminal, and a plurality of frequency domain resource patterns are pre-configured for the terminal, and a frequency domain interval in the continuous frequency domain resources is indicated by activating one of the frequency domain resource patterns by the activation information.

[0073] In some embodiments of the first aspect, in some embodiments, the resource indication information includes M third indication information, and the M third indication information is used to indicate the N sub-band resources, where M is less than or equal to N.

[0074] The first frequency domain resource used by the downlink is determined according to the resource indication information, and the first frequency domain resource includes N sub-band resources.

[0075] The first frequency domain resource is determined according to the N sub-band resources indicated by the M third indication information.

[0076] In the above embodiment, the N sub-band resources are directly indicated by the M third indication information, so that the frequency domain interval is implicitly indicated, and the terminal can directly determine the frequency domain resource used by the downlink according to the M third indication information.

[0077] In a second aspect, the embodiments of the present disclosure provide a communication method, executed by a network device, the method comprising:

[0078] The resource indication information is transmitted, and the resource indication information is used by a terminal to determine a first frequency domain resource used by a downlink, the first frequency domain resource includes N sub-band resources, the N sub-band resources are discontinuous, and N is an integer greater than or equal to 2.

[0079] In combination with some embodiments of the second aspect, in some embodiments, the resource indication information includes first indication information and N-1 second indication information, the first indication information is used to indicate a continuous second frequency domain resource, and each second indication information is used to indicate a frequency domain interval; and the first frequency domain resource is determined by the second frequency domain resource and N-1 frequency domain intervals indicated by the N-1 second indication information.

[0080] In combination with some embodiments of the second aspect, in some embodiments, the second indication information is used to indicate at least one of the following parameters of a frequency domain interval:

[0081] a starting subcarrier index of the frequency domain interval;

[0082] a starting PRB index of the frequency domain interval;

[0083] a terminal subcarrier index of the frequency domain interval;

[0084] a terminal PRB index of the frequency domain interval;

[0085] a number of continuous subcarriers of the frequency domain interval;

[0086] a number of continuous PRBs of the frequency domain interval.

[0087] In some embodiments of the second aspect, in some embodiments, the resource indication information includes first indication information and activation information, the first indication information is used to indicate a continuous second frequency domain resource; the activation information is used to activate a first frequency domain resource pattern in a plurality of pre-configured frequency domain resource patterns, the first frequency domain resource pattern includes N-1 unavailable frequency domain resources; and the first frequency domain resource is determined by the second frequency domain resource and the N-1 unavailable frequency domain resources in the first frequency domain resource pattern.

[0088] In some embodiments of the second aspect, in some embodiments, the resource indication information includes M third indication information, the M third indication information is used to indicate the N sub-band resources, where M is less than or equal to N; and the first frequency domain resource is determined by the N sub-band resources indicated by the M third indication information.

[0089] In a third aspect, the embodiments of the present disclosure provide a terminal, comprising:

[0090] a transceiver module, configured to receive resource indication information;

[0091] a processing module, configured to determine, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource including N sub-band resources, the N sub-band resources being discontinuous, and N being an integer greater than or equal to 2.

[0092] In a fourth aspect, the embodiments of the present disclosure provide a network device, comprising:

[0093] a transceiver module, configured to send resource indication information, the resource indication information being used by a terminal to determine a first frequency domain resource used by a downlink, the first frequency domain resource including N sub-band resources, the N sub-band resources being discontinuous, and N being an integer greater than or equal to 2.

[0094] In a fifth aspect, the embodiments of the present disclosure provide a terminal, comprising:

[0095] one or more processors;

[0096] The terminal is configured to perform the method described in the optional implementation of the first aspect.

[0097] In a sixth aspect, the embodiments of the present disclosure provide a network device, comprising:

[0098] one or more processors;

[0099] The network device is configured to perform the method described in the optional implementation of the second aspect.

[0100] In a seventh aspect, the embodiments of the present disclosure provide a communication system, comprising:

[0101] a terminal configured to implement the method described in the optional implementation of the first aspect; and

[0102] a network device configured to implement the method described in the optional implementation of the second aspect.

[0103] In an eighth aspect, an embodiment of the present disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the optional implementation of the first aspect or the second aspect.

[0104] In a ninth aspect, an embodiment of the present disclosure provides a computer program product comprising a computer program that, when executed by a communication device, implements the method described in the optional implementation of the first aspect or the second aspect.

[0105] In a tenth aspect, an embodiment of the present disclosure provides a chip or chip system. The chip or chip system comprises processing circuitry configured to perform the method described in the optional implementation of the first aspect or the second aspect.

[0106] It can be understood that the terminal, the network device, the communication system, the storage medium, the computer program product, the chip or the chip system are all used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here.

[0107] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or parts or all of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation of other embodiments.

[0108] In the embodiments of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0109] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.

[0110] In the embodiments of the present disclosure, an element expressed in singular form, such as "a", "an", "the", "said", "the aforementioned", "the foregoing", "this", and the like, unless otherwise specified, can represent "one and only one", or can represent "one or more", "at least one", and the like. For example, in the case of using an article such as "a", "an", "the" in English, the noun after the article can be understood as a singular expression, or can be understood as a plural expression.

[0111] In the embodiments of the present disclosure, "plurality" refers to two or more.

[0112] In some embodiments, the terms "at least one of", "one or more of", "a plurality of", "multiple", and the like can be replaced with each other.

[0113] In some embodiments, the description modes such as "at least one of A, B", "A and / or B", "A in one case and B in another case", "in response to a case A, in response to a case B", and the like can include the following technical solutions according to the case: in some embodiments, A is executed regardless of B; in some embodiments, B is executed regardless of A; in some embodiments, A and B are selectively executed from A and B; in some embodiments, A and B are executed (A and B are both executed). When there are more branches such as A, B, C, and the like, it is similar to the above.

[0114] In some embodiments, the description modes such as "A or B" and the like can include the following technical solutions according to the case: in some embodiments, A is executed regardless of B; in some embodiments, B is executed regardless of A; in some embodiments, A and B are selectively executed from A and B; when there are more branches such as A, B, C, and the like, it is similar to the above.

[0115] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments, and should not be construed as redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different. For another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0116] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0117] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0118] In some embodiments, the terms of "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above" and the like can be replaced with each other, and the terms of "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0119] In some embodiments, the apparatuses and devices can be interpreted as physical, as well as virtual, whose names are not limited to the names described in the embodiments, and in some cases can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0120] In some embodiments, "network" can be interpreted as an apparatus contained in the network, such as an access network device, a core network device, etc.

[0121] In some embodiments, "access network device (AN device)" can also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments can also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0122] In some embodiments, a "terminal" or "terminal device" can be referred to as a "user equipment" (UE), a "user terminal," a "mobile station" (MS), a "mobile terminal" (MT), a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, and / or the like.

[0123] In some embodiments, data, information and / or the like can be obtained in compliance with laws and regulations of a country where a location is situated.

[0124] In some embodiments, data, information and / or the like can be obtained after consent of a user is obtained.

[0125] In addition, each element, each row, or each column in a table of embodiments of the present disclosure can be implemented as an independent embodiment, and a combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0126] FIG. 1A is a schematic diagram of an architecture of a communication system, according to an embodiment of the present disclosure. As shown in FIG. 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0127] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a smart door lock, a tablet (Pad), a wireless-transmitting computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and the like, but is not limited thereto.

[0128] In some embodiments, the network device 102 can include at least one of an access network device and a core network device.

[0129] In some embodiments, the access network device is at least one of a node or a device that accesses the terminal 101 to a wireless network, and can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, and the like, but is not limited thereto.

[0130] In some embodiments, the core network device can be one device including one or more network elements, or can be multiple devices or device groups each including all or part of the one or more network elements described above. The network element can be virtual or physical. The core network includes, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0131] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at which time the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0132] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, with part of the protocol layer functions being controlled by the CU, and the remaining part or all of the protocol layer functions being distributed in the DU and controlled by the CU, but not limited thereto.

[0133] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0134] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1A or part of the subject, but are not limited thereto. The subjects shown in FIG. 1A are exemplary, and the communication system can include all or part of the subjects in FIG. 1A, or include other subjects other than those in FIG. 1A. The number and form of each subject is arbitrary, each subject can be physical or virtual, the connection relationship between each subject is exemplary, each subject can not be connected or can be connected, and the connection can be in any manner, can be direct connection or indirect connection, can be wired connection or wireless connection.

[0135] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. Further, a plurality of systems can be applied in combination (for example, combination of LTE or LTE-A and 5G, and the like).

[0136] With the continuous development of wireless communication, the requirements for communication capability are also increasing. Facing future application scenarios such as Augmented Reality (AR) / Virtual Reality (VR), Internet of Vehicles, Internet of Things, holographic communication, ultra-high-definition video transmission, and the like, ultra-high speed, ultra-low latency, and ultra-large bandwidth communication become the norm. The existing Frequency Range 1 (FR1) and Frequency Range 2 (FR2) have limited bandwidth and cannot support the above-mentioned services, so higher frequency bands such as sub-THz and THz need to be used. According to the electromagnetic wave space loss model, the free space loss of high frequency is higher, and the same transmission power results in a shorter radiation distance, so large-scale Multiple Input Multiple Output (MIMO) beamforming is needed to solve the problem of short transmission distance.

[0137] The width of the beam is related to the size of the antenna array and the frequency, that is, the higher the frequency, the narrower the beam, and the larger the antenna array, the narrower the beam. This results in a very narrow beam for high-frequency large-scale MIMO, so the high-frequency large-scale MIMO system needs more beams than the NR system to cover the same cell. And because the reflection and diffraction ability of high-frequency electromagnetic waves is poor, it is generally considered that only the line-of-sight (LoS) path exists.

[0138] In a high-frequency system, the bandwidth is generally large, and because the wavelengths of different subcarriers differ greatly, the same analog beamforming vector will cause beam squint, and the beam will spread to other directions like the dispersion of light deviating from the aiming line, and the angle of beam deviation from the aiming line changes with the change of signal frequency. This phenomenon will cause a loss of antenna array gain at the transmitting end, and the original narrow beam will become a wide beam related to the subcarrier, as shown in FIG. 1B.

[0139] To address the beam squint phenomenon, on the one hand, beam squint can cause array gain loss. Existing research shows that a layer of true-time-delay (TTD) or delay-phase-precoding (DPP) network can be added before the antenna array phase shifter, and the TTD or DPP parameters can be designed to compensate for the array gain loss caused by beam squint.

[0140] On the other hand, beam squint extends the width of a single analog beam, making it change from a narrow beam to a wide beam. Based on this, the base station (such as gNB) can cover more users at the same time, and by designing the TTD or DPP parameters, the direction of different subcarrier beam offsets can be controlled, so that the beam is aligned with the target user direction.

[0141] Referring to FIGS. 1C, 1D and 1E, in a TTD-based system, by designing the values of the respective delay elements, beam behavior-1 in FIG. 1D and beam behavior-2 in FIG. 1E can be achieved. Among them, beam behavior-1 means that the beams corresponding to different subcarriers cover a continuous angle range, and beam behavior-2 means that the beam directions corresponding to different subcarriers are independent and irrelevant. In FIG. 1C, τ 1～N represents the value of the delay element, represents the phase value, and 1-M represents the antenna.

[0142] For beam behavior-2, when all bandwidth resources are allocated to the same user, using the above TTD-based scheme for transmission will cause inter-frequency interference. Referring to the simulation diagram shown in FIG. 1F, wherein the X-axis represents the ratio η of the subcarrier to the center carrier frequency, when η = 1, it means that the subcarrier is the center carrier frequency, and the entire bandwidth is 0.1 times the center carrier frequency. The Y-axis represents the angle (direction) of the analog beam, and the Z-axis represents the intensity of the energy, which can also be understood as the array gain of a beam. According to the simulation diagram, for the subcarriers near the center carrier frequency, due to the influence of the beam tail of the high-frequency and low-frequency parts, there is part of the energy corresponding to the low-frequency subcarriers radiated in the direction corresponding to the high-frequency beam, and there is part of the energy corresponding to the high-frequency subcarriers radiated in the direction corresponding to the low-frequency beam. Therefore, in order to reduce the influence of inter-frequency interference and improve transmission efficiency, the frequency band near the center carrier frequency can be used in a manner of not transmitting data or allocated to other users. This frequency band can be referred to as a frequency gap, as shown in FIG. 1E. Alternatively, the frequency gap bandwidth part can be indicated separately. Alternatively, in the above example, the high-frequency beam can be referred to as the beam corresponding to the first subband, and the low-frequency beam can be referred to as the beam corresponding to the second subband. In some embodiments, the entire bandwidth can be divided into multiple subbands, each subband corresponding to a beam, and the frequency domain resources between different subbands are non-continuous, for example, a frequency domain gap is set between the frequency domain resources of each adjacent subband.

[0143] FIG. 2A is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2A, the embodiment of the present disclosure relates to a communication method, and the above method comprises:

[0144] In step S2101, the network device sends first indication information and N-1 pieces of second indication information to the terminal.

[0145] Optionally, the first indication information is used to indicate a continuous second frequency domain resource, and each piece of second indication information is used to indicate a frequency domain interval, and the N-1 pieces of second indication information together indicate N-1 frequency domain intervals.

[0146] Optionally, the network device allocates the entire continuous bandwidth resource (i.e., the second frequency domain resource) to the terminal through the first indication information, and separately indicates the N-1 frequency domain intervals through the N-1 pieces of second indication information for reducing inter-frequency interference. Optionally, the above continuous bandwidth resource is a large bandwidth resource, for example, a ratio of a bandwidth of the large bandwidth resource to a center carrier frequency is greater than a threshold. Optionally, the threshold is 0.1 or other values.

[0147] Optionally, the second indication information is used to indicate at least one of the following parameters of a frequency domain interval:

[0148] a starting subcarrier index of the frequency domain interval;

[0149] a starting physical resource block (PRB) index of the frequency domain interval;

[0150] a terminal subcarrier index of the frequency domain interval;

[0151] a terminal PRB index of the frequency domain interval;

[0152] a number of continuous subcarriers of the frequency domain interval;

[0153] a number of continuous PRBs of the frequency domain interval.

[0154] For example, the second indication information is used to indicate a starting subcarrier index and a terminal subcarrier index of a frequency domain interval; for another example, the second indication information is used to indicate a starting subcarrier index and a number of continuous subcarriers of a frequency domain interval; for another example, the second indication information is used to indicate a terminal subcarrier index and a number of continuous subcarriers of a frequency domain interval, but is not limited thereto.

[0155] Optionally, the first indication information and the N-1 pieces of second indication information can be contained in the same downlink control information (DCI) or in different DCIs. The network device sending the first indication information and the N-1 pieces of second indication information to the terminal can be sending both together or separately.

[0156] Optionally, the network device sends the terminal a first DCI, and the first indication information and the N-1 second indication information are contained in the first DCI. Optionally, the first indication information and the N-1 second indication information are respectively contained in one frequency domain resource allocation (FDRA) field of the first DCI.

[0157] Optionally, the network device sends the terminal a first DCI, and the first DCI includes N FDRA fields, wherein one of the N FDRA fields is used to indicate the continuous second frequency domain resource allocated by the network device for the terminal, and the remaining N-1 FDRA fields are respectively used to indicate one frequency domain interval. Taking N=2 as an example, the network device sends the terminal a first DCI, and the first DCI includes two FDRA fields, one FDRA field contains the first indication information, which is used to indicate the continuous second frequency domain resource allocated by the network device for the terminal, and the other FDRA field contains the second indication information, which is used to indicate one frequency domain interval.

[0158] In the above embodiment, the first indication information can be used to allocate the continuous frequency domain resource of the downlink for the terminal, and the second indication information can be used to individually indicate the frequency domain interval in the above continuous frequency domain resource.

[0159] Step S2102, the terminal determines the first frequency domain resource used by the downlink according to the first indication information and the N-1 second indication information.

[0160] Optionally, the terminal determines the first frequency domain resource according to the second frequency domain resource indicated by the first indication information and the N-1 frequency domain intervals indicated by the N-1 second indication information. Optionally, the first frequency domain resource is the resource in the second frequency domain resource except the N-1 frequency domain intervals.

[0161] Optionally, the first frequency domain resource includes N sub-band resources, and the N sub-band resources are non-continuous, that is, a frequency domain interval is arranged between each adjacent sub-band resource in the N sub-band resources. Optionally, each sub-band resource corresponds to one beam. N is an integer greater than or equal to 2, for example, N=2. Taking N=2 as an example, the first frequency domain resource includes a first sub-band resource and a second sub-band resource, and the first sub-band resource and the second sub-band resource are non-continuous, that is, a frequency domain interval is arranged between the first sub-band resource and the second sub-band resource, as shown in FIG. 1H.

[0162] FIG. 2B is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2B, the embodiment of the present disclosure relates to a communication method, and the above method includes:

[0163] Step S2201, the network device sends the terminal the first indication information.

[0164] Optionally, the first indication information is used to indicate a continuous second frequency domain resource. Optionally, the network device allocates the entire continuous bandwidth resource (i.e., the second frequency domain resource) to the terminal through the first indication information. Optionally, the continuous bandwidth resource is a large bandwidth resource, for example, a ratio of a bandwidth of the large bandwidth resource to a center carrier frequency is greater than a threshold. Optionally, the threshold is 0.1, or other values.

[0165] Optionally, the network device sends a second DCI to the terminal, and the first indication information is included in the second DCI. Optionally, the first indication information is included in an FDRA field of the second DCI.

[0166] Optionally, the network device sends a second DCI to the terminal, and the second DCI includes an FDRA field used to indicate a continuous second frequency domain resource allocated by the network device to the terminal.

[0167] In the above embodiment, the continuous frequency domain resource of the downlink can be allocated to the terminal through the first indication information.

[0168] Step S2202, the network device sends activation information to the terminal.

[0169] Optionally, the activation information is used to activate a first frequency domain resource pattern in a plurality of pre-configured frequency domain resource patterns. For example, the network device pre-configures a plurality of frequency domain resource patterns for the terminal, and each frequency domain resource pattern includes N-1 unavailable frequency domain resources, and each unavailable frequency domain resource is a frequency domain interval, so that each frequency domain resource pattern can indicate N-1 frequency domain intervals. In different frequency domain resource patterns, the positions and / or sizes of the frequency domain intervals can be different.

[0170] Optionally, the network device sends a third DCI to the terminal, and the activation information is included in the third DCI.

[0171] Optionally, the method further includes: the network device sends a radio resource control (RRC) signaling to the terminal, and the RRC signaling is used to configure a plurality of frequency domain resource patterns for the terminal.

[0172] Optionally, the network device indicates the plurality of frequency domain resource patterns to the terminal through the RRC signaling, and activates one of the frequency domain resource patterns through the DCI signaling.

[0173] Step S2203, the terminal determines the first frequency domain resource used by the downlink according to the first indication information and the activation information.

[0174] Optionally, the terminal determines the first frequency domain resource according to the second frequency domain resource indicated by the first indication information and N-1 unavailable frequency domain resources in the first frequency domain resource pattern activated by the activation information. Optionally, the first frequency domain resource is a resource in the second frequency domain resource except the N-1 unavailable frequency domain resources in the first frequency domain resource pattern.

[0175] Optionally, the first frequency domain resource includes N sub-band resources, and the N sub-band resources are non-contiguous, that is, a frequency domain interval is arranged between each adjacent sub-band resource in the N sub-band resources. Optionally, each sub-band resource corresponds to one beam. N is an integer greater than or equal to 2, for example, N=2. Taking N=2 as an example, the first frequency domain resource includes a first sub-band resource and a second sub-band resource, and the first sub-band resource and the second sub-band resource are non-contiguous, that is, a frequency domain interval is arranged between the first sub-band resource and the second sub-band resource, and the frequency domain interval is indicated by the unavailable frequency domain resource in the activated first frequency domain resource pattern.

[0176] In the above embodiment, a plurality of sets of frequency domain resource patterns are pre-configured, and one set of frequency domain resource patterns is activated by the activation information to indicate the frequency domain interval in the continuous frequency domain resource.

[0177] In some embodiments, the steps S2201 and S2202 can be exchanged in order or performed simultaneously.

[0178] FIG. 2C is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2C, the embodiment of the present disclosure relates to a communication method, and the method includes:

[0179] In step S2301, the network device sends M third indication information to the terminal.

[0180] Optionally, the M third indication information is used to indicate N sub-band resources, and different sub-band resources are non-contiguous, and M is a positive integer less than or equal to N. Each third indication information can indicate one or more sub-band resources. Optionally, M is equal to N, and the network device sends N third indication information to the terminal, and each third indication information is used to indicate one sub-band resource, and the N third indication information collectively indicates the N sub-band resources.

[0181] Optionally, the M third indication information can be included in the same DCI or in different DCIs.

[0182] Optionally, the network device sends a fourth DCI to the terminal, and the M third indication information is included in the fourth DCI. Optionally, the M third indication information is respectively included in one FDRA field of the fourth DCI.

[0183] Optionally, the network device sends a fourth DCI to the terminal, the fourth DCI includes M FDRA fields, and each FDRA field includes a third indication information. Optionally, M is equal to N, the network device sends a fourth DCI to the terminal, the fourth DCI includes N FDRA fields, and each FDRA field includes a third indication information. Taking N=2 as an example, the network device sends a fourth DCI to the terminal, the fourth DCI includes two FDRA fields, one of the two FDRA fields includes a third indication information for indicating the first sub-band resource, and the other of the two FDRA fields includes another third indication information for indicating the second sub-band resource.

[0184] In the above embodiment, the N sub-band resources are directly indicated by the M third indication information, so that the frequency domain interval is implicitly indicated, and the terminal can directly determine the first frequency domain resource used by the downlink according to the M third indication information. By using the M third indication information, the entire bandwidth can be allocated to the terminal.

[0185] Optionally, M is equal to N, and each third indication information only allocates a small piece of continuous frequency domain resource to the terminal.

[0186] In step S2302, the terminal determines the first frequency domain resource used by the downlink according to the M third indication information.

[0187] Optionally, the terminal determines the first frequency domain resource according to the N sub-band resources indicated by the M third indication information. Optionally, M is equal to N, and the terminal determines the first frequency domain resource according to the N sub-band resources indicated by the N third indication information.

[0188] The first frequency domain resource includes the N sub-band resources, and the N sub-band resources are non-continuous, that is, a frequency domain interval is arranged between each adjacent sub-band resource in the N sub-band resources. Optionally, each sub-band resource corresponds to a beam. N is an integer greater than or equal to 2, for example, N=2. Taking N=2 as an example, the first frequency domain resource includes the first sub-band resource and the second sub-band resource, and the first sub-band resource and the second sub-band resource are non-continuous, that is, a frequency domain interval is arranged between the first sub-band resource and the second sub-band resource.

[0189] In the embodiment of the present disclosure, the first frequency domain resource used by the downlink of one terminal includes a plurality of sub-band resources, and the plurality of sub-band resources are non-continuous, that is, a frequency domain interval is arranged between each adjacent sub-band resource, and the frequency domain interval bandwidth part can be in a manner of not transmitting data or allocated to other users for use, thereby reducing the influence of frequency interference, improving transmission efficiency and transmission quality, and further improving the performance of the communication system. According to the embodiments of FIG. 2A, FIG. 2B, and FIG. 2C, for the continuous frequency domain resource allocated to the same terminal, the frequency domain interval in the continuous frequency domain resource can be indicated in different manners.

[0190] In some embodiments, the name of information and the like is not limited to the name described in the embodiments, and the terms of "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0191] In some embodiments, the terms of "downlink", "downlink", "physical downlink", and the like can be replaced with each other.

[0192] In some embodiments, the terms of "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI", and the like can be replaced with each other.

[0193] In some embodiments, the terms of "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", "sub-carrier", and the like can be replaced with each other.

[0194] In some embodiments, the terms “precoding”, “precoder”, “weight”, “precoding weight”, “quasi-co-location (QCL)”, “transmission configuration indication (TCI) state”, “spatial relation”, “spatial domain filter”, “transmission power”, “phase rotation”, “antenna port”, “antenna port group”, “layer”, “the number of layers”, “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angular degree”, “antenna”, “antenna element”, “panel”, and the like can be replaced with each other.

[0195] In some embodiments, the terms “acquire”, “obtain”, “get”, “receive”, “transmit”, “bidirectional transmission”, “transmit and / or receive” can be replaced with each other, which can be interpreted as receiving from other subjects, acquiring from protocols, obtaining from higher layers, obtaining by processing by itself, autonomously implementing, and the like.

[0196] In some embodiments, the terms “transmit”, “emit”, “report”, “issue”, “transmit”, “bidirectional transmission”, “transmit and / or receive” can be replaced with each other.

[0197] FIG. 3A is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3A, the embodiment of the present disclosure relates to a communication method, which is performed by a terminal, and the above method comprises:

[0198] Step S3101, receiving first indication information and N-1 second indication information.

[0199] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be described here.

[0200] Step S3102. Determine, according to the first indication information and the N-1 second indication information, the first frequency domain resource used by the downlink.

[0201] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A. Details are not described herein again.

[0202] FIG. 3B is a flow diagram of a communication method according to some embodiments of the present disclosure. As shown in FIG. 3B, some embodiments of the present disclosure relate to a communication method, which is performed by a terminal, and the above method includes the following steps.

[0203] Step S3201. Receive the first indication information.

[0204] The optional implementation of step S3201 can refer to the optional implementation of step S2201 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B. Details are not described herein again.

[0205] Step S3202. Receive the activation information.

[0206] The optional implementation of step S3202 can refer to the optional implementation of step S2202 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B. Details are not described herein again.

[0207] In some embodiments, the order of step S3201 and step S3202 can be exchanged or performed at the same time.

[0208] Step S3203. Determine, according to the first indication information and the activation information, the first frequency domain resource used by the downlink.

[0209] The optional implementation of step S3203 can refer to the optional implementation of step S2203 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B. Details are not described herein again.

[0210] FIG. 3C is a flow diagram of a communication method according to some embodiments of the present disclosure. As shown in FIG. 3C, some embodiments of the present disclosure relate to a communication method, which is performed by a terminal, and the above method includes the following steps.

[0211] Step S3301. Receive M third indication information.

[0212] The optional implementation of step S3301 can refer to the optional implementation of step S2301 in FIG. 2C and other associated parts in the embodiments related to FIG. 2C. Details are not described herein again.

[0213] Step S3302. Determine, according to the M third indication information, the first frequency domain resource used by the downlink.

[0214] The optional implementation of step S3302 can refer to the optional implementation of step S2302 in FIG. 2C and other associated parts in the embodiments related to FIG. 2C, which are not described here again.

[0215] FIG. 3D is a flow diagram of a communication method according to the embodiments of the present disclosure. As shown in FIG. 3D, the embodiments of the present disclosure relate to a communication method, which is performed by a terminal, and the above method comprises:

[0216] Step S3401: receiving resource indication information.

[0217] The optional implementation of step S3401 can refer to step S2101 in FIG. 2A, step S2201 and step S2202 in FIG. 2B, the optional implementation of step S2301 in FIG. 2C, and other associated parts in the embodiments related to FIG. 2A, FIG. 2B and FIG. 2C, which are not described here again.

[0218] In some embodiments, the resource indication information comprises first indication information and N-1 second indication information, the first indication information is used to indicate a continuous second frequency domain resource, and each second indication information is used to indicate a frequency domain interval, and the N-1 second indication information indicates N-1 frequency domain intervals.

[0219] In some embodiments, the second indication information is used to indicate at least one of the following parameters of a frequency domain interval:

[0220] a starting subcarrier index of the frequency domain interval;

[0221] a starting PRB index of the frequency domain interval;

[0222] a terminal subcarrier index of the frequency domain interval;

[0223] a terminal PRB index of the frequency domain interval;

[0224] a number of continuous subcarriers of the frequency domain interval;

[0225] a number of continuous PRBs of the frequency domain interval.

[0226] In some embodiments, the resource indication information comprises first indication information and activation information, the first indication information is used to indicate a continuous second frequency domain resource, and the activation information is used to activate a first frequency domain resource pattern in a plurality of preconfigured frequency domain resource patterns, the first frequency domain resource pattern comprises N-1 unavailable frequency domain resources.

[0227] In some embodiments, the resource indication information comprises M third indication information, the M third indication information is used to indicate N sub-band resources, and M is less than or equal to N. Optionally, M is equal to N, the resource indication information comprises N third indication information, each third indication information is used to indicate one sub-band resource, and the N third indication information indicates the N sub-band resources.

[0228] In step S3402, the first frequency domain resource used by the downlink is determined according to the resource indication information.

[0229] The optional implementation of step S3402 can refer to the optional implementation of step S2102 in FIG. 2A, step S2203 in FIG. 2B, step S2302 in FIG. 2C, and other associated parts in the embodiments related to FIG. 2A, FIG. 2B, and FIG. 2C, which will not be described here.

[0230] In some embodiments, the first frequency domain resource comprises N sub-band resources, the N sub-band resources are discontinuous, N is an integer greater than or equal to 2, for example, N=2.

[0231] In some embodiments, the resource indication information comprises first indication information and N-1 second indication information, the first indication information is used to indicate a continuous second frequency domain resource, the N-1 second indication information is used to indicate N-1 frequency domain intervals, and in the above step, the first frequency domain resource is determined according to the second frequency domain resource and the N-1 frequency domain intervals.

[0232] In some embodiments, the resource indication information comprises first indication information and activation information, the first indication information is used to indicate a continuous second frequency domain resource, the activation information is used to activate a first frequency domain resource pattern in a plurality of pre-configured frequency domain resource patterns, the first frequency domain resource pattern comprises N-1 unavailable frequency domain resources, and in the above step, the first frequency domain resource is determined according to the second frequency domain resource and the N-1 unavailable frequency domain resources in the first frequency domain resource pattern.

[0233] In some embodiments, the method further comprises: receiving RRC signaling, the RRC signaling is used to configure a plurality of frequency domain resource patterns for the terminal.

[0234] In some embodiments, the resource indication information comprises M third indication information, the M third indication information is used to indicate N sub-band resources, and in the above step, the first frequency domain resource is determined according to the N sub-band resources.

[0235] FIG. 4A is a flow diagram of a communication method according to some embodiments of the present disclosure. As shown in FIG. 4A, the embodiments of the present disclosure relate to a communication method, which is performed by a network device, and the above method comprises:

[0236] Step S4101. Transmit the first indication information and the N-1 second indication information.

[0237] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in FIG. 2A and other associated parts in the embodiments related to FIG. 2A, which will not be repeated here.

[0238] FIG. 4B is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4B, the embodiments of the present disclosure relate to a communication method, which is performed by a network device, and the above method comprises:

[0239] Step S4201. Transmit the first indication information.

[0240] The optional implementation of step S4201 can refer to the optional implementation of step S2201 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B, which will not be repeated here.

[0241] Step S4202. Transmit the activation information.

[0242] The optional implementation of step S4202 can refer to the optional implementation of step S2202 in FIG. 2B and other associated parts in the embodiments related to FIG. 2B, which will not be repeated here.

[0243] In some embodiments, the order of step S4201 and step S4202 can be exchanged or performed simultaneously.

[0244] FIG. 4C is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4C, the embodiments of the present disclosure relate to a communication method, which is performed by a network device, and the above method comprises:

[0245] Step S4301. Transmit M third indication information.

[0246] The optional implementation of step S4301 can refer to the optional implementation of step S2301 in FIG. 2C and other associated parts in the embodiments related to FIG. 2C, which will not be repeated here.

[0247] FIG. 4D is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 4D, the embodiments of the present disclosure relate to a communication method, which is performed by a network device, and the above method comprises:

[0248] Step S4401. Transmit the resource indication information.

[0249] The optional implementation of step S4401 can refer to the optional implementation of step S2101 in FIG. 2A, step S2201 in FIG. 2B, step S2202, the optional implementation of step S2301 in FIG. 2C, and other associated parts in the embodiments related to FIGS. 2A, 2B, and 2C. Details are not described herein again.

[0250] In some embodiments, the resource indication information is used by the terminal to determine the first frequency domain resource used by the downlink, the first frequency domain resource includes N sub-band resources, the N sub-band resources are discontinuous, and N is an integer greater than or equal to 2.

[0251] In some embodiments, the resource indication information includes first indication information and N-1 second indication information, the first indication information is used to indicate a continuous second frequency domain resource, and each second indication information is used to indicate a frequency domain interval. The N-1 second indication information collectively indicates N-1 frequency domain intervals. Optionally, the first frequency domain resource is determined by the second frequency domain resource and the N-1 frequency domain intervals.

[0252] In some embodiments, the second indication information is used to indicate at least one of the following parameters of a frequency domain interval:

[0253] a starting subcarrier index of the frequency domain interval;

[0254] a starting PRB index of the frequency domain interval;

[0255] a terminal subcarrier index of the frequency domain interval;

[0256] a terminal PRB index of the frequency domain interval;

[0257] a number of continuous subcarriers of the frequency domain interval;

[0258] a number of continuous PRBs of the frequency domain interval.

[0259] In some embodiments, the resource indication information includes first indication information and activation information, the first indication information is used to indicate a continuous second frequency domain resource, and the activation information is used to activate a first frequency domain resource pattern in a plurality of preconfigured frequency domain resource patterns in the terminal, the first frequency domain resource pattern includes N-1 unavailable frequency domain resources. Optionally, the first frequency domain resource is determined by the second frequency domain resource and the N-1 unavailable frequency domain resources in the first frequency domain resource pattern.

[0260] In some embodiments, the method further includes: sending RRC signaling used to configure a plurality of frequency domain resource patterns for the terminal.

[0261] In some embodiments, the resource indication information comprises M third indication information, and the M third indication information is used for indicating N sub-band resources. Optionally, the first frequency domain resource is determined by the N sub-band resources indicated by the M third indication information. Optionally, M is equal to N, the resource indication information comprises N third indication information, and each third indication information is used for indicating one sub-band resource. The N third indication information indicates the N sub-band resources.

[0262] FIG. 5 is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5, the embodiment of the present disclosure relates to a communication method, and the method comprises:

[0263] In step S5101, the network device sends resource indication information to the terminal.

[0264] The optional implementation of step S5101 can refer to the optional implementation of step S2101 in FIG. 2A, step S2201 and step S2202 in FIG. 2B, step S2301 in FIG. 2C, step S3401 in FIG. 3D, step S4401 in FIG. 4D, and other associated parts in the embodiments related to FIG. 2A, FIG. 2B, FIG. 2C, FIG. 3D and FIG. 4D, which will not be repeated here.

[0265] In step S5102, the terminal determines the first frequency domain resource used by the downlink according to the resource indication information.

[0266] The optional implementation of step S5102 can refer to step S2102 in FIG. 2A, step S2203 in FIG. 2B, step S2302 in FIG. 2C, the optional implementation of step S3401 in FIG. 3D, and other associated parts in the embodiments related to FIG. 2A, FIG. 2B, FIG. 2C and FIG. 3D, which will not be repeated here.

[0267] According to the above embodiments of the present disclosure, in some embodiments, by indicating the frequency domain interval bandwidth part between the continuous frequency domain resources, the inter-frequency interference can be reduced, and the Signal to Interference plus Noise Ratio (SINR) of the receiving end can be improved.

[0268] In a TTD-based communication system, a base station allocates a continuous large bandwidth resource to a terminal. In order to reduce the inter-frequency interference, the base station also needs to indicate a frequency domain interval. Therefore, the terminal receives the frequency domain resource indication information indicated by the base station, and determines the frequency domain resource of the downlink allocated by the base station and the corresponding frequency domain interval according to the frequency domain resource indication information.

[0269] In some embodiments, for contiguous resource allocation, the entire contiguous bandwidth is allocated to one terminal when FDRA in DCI allocates resources. At this time, if the base station wants to indicate the frequency domain interval, it needs to indicate an FDRA separately through DCI, and the content indicated by the FDRA includes any one or more of the following parameters:

[0270] Frequency domain interval start subcarrier / PRB index;

[0271] Frequency domain interval end subcarrier / PRB index;

[0272] Number of subcarriers / PRBs in the frequency domain interval.

[0273] In some embodiments, for contiguous resource allocation, the entire contiguous bandwidth is allocated to one terminal when FDRA in DCI allocates resources. The base station can indicate the frequency domain interval by rate matching. Specifically, the base station pre-configures multiple sets of frequency domain resource patterns, where some subcarriers / PRBs / RBGs in a set of frequency domain resource patterns cannot be used, and the base station indicates the multiple sets of frequency domain resource patterns to the terminal through RRC signaling and activates one set of frequency domain resource patterns through DCI signaling to indicate the frequency domain interval to the terminal. Among different frequency domain resource patterns, the position and size of the frequency domain interval can be different.

[0274] In some embodiments, for discrete frequency domain resource allocation, only a small block of contiguous resources is allocated to the terminal when FDRA in DCI allocates resources. In order to allocate the entire bandwidth to one terminal, the base station needs to indicate multiple sets of FDRA patterns, each set of FDRA pattern corresponding to a sub-band, and the frequency domain resources between different sub-bands are discontinuous.

[0275] In the embodiments of the present disclosure, part or all of the steps and optional implementation manners thereof can be combined with part or all of the steps in other embodiments, or can be combined with optional implementation manners of other embodiments.

[0276] The embodiments of the present disclosure also propose an apparatus for implementing any of the above methods, for example, an apparatus including units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another apparatus is proposed, including units or modules for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0277] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to realize the functions of any of the above methods or the units or modules of the above apparatus, wherein the processor is a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of the hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0278] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of part or all of the units or modules described above. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), or the like.

[0279] FIG. 6A is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 6A, the terminal 6100 can include at least one of a transceiver module 6101, a processing module 6102, and the like. In some embodiments, the transceiver module 6101 is configured to receive the resource indication information. The processing module 6102 is configured to determine, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource including N sub-band resources, the N sub-band resources being discontinuous, and N being an integer greater than or equal to 2. Optionally, the transceiver module 6101 is configured to perform at least one of the communication steps, such as receiving and / or transmitting, performed by the terminal in any of the methods described above, which will not be described herein. Optionally, the processing module 6102 is configured to perform at least one of the other steps (for example, steps S2102, S2203, and S2302, but not limited thereto) performed by the terminal in any of the methods described above, which will not be described herein.

[0280] Figure 6B is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 6B, the network device 6200 may include at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module 6201 is used to send resource indication information, which is used by the terminal to determine the first frequency domain resources used in the downlink. The first frequency domain resources include N sub-band resources, which are non-contiguous, and N is an integer greater than or equal to 2. Optionally, the transceiver module 6201 is used to perform at least one of the communication steps (e.g., steps S2101, S2201, S2202, S2301, but not limited thereto) performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 6202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be described in detail here.

[0281] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0282] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0283] Figure 7A is a schematic diagram of the structure of the communication device 7100 proposed in an embodiment of this disclosure. The communication device 7100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0284] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 7100 is used to execute any of the above methods.

[0285] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0286] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2201, S2202, and S2301, but not limited thereto), and the processor 7101 performs at least one of other steps (e.g., steps S2102, S2203, and S2302, but not limited thereto).

[0287] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0288] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0289] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0290] Figure 7B is a schematic diagram of the structure of the chip 7200 according to an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, the schematic diagram of the chip 7200 shown in Figure 7B can be referenced, but is not limited thereto.

[0291] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0292] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0293] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2201, S2202, and S2301, but not limited thereto), and the processor 7201 performs at least one of the other steps (e.g., steps S2102, S2203, and S2302, but not limited thereto).

[0294] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0295] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0296] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0297] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0298] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method is performed by a terminal, and the method comprises: receiving resource indication information; determining, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being discontinuous, N being an integer greater than or equal to 2.

2. The method of claim 1, wherein, The resource indication information comprises first indication information and N-1 second indication information, the first indication information being used for indicating a continuous second frequency domain resource, each of the second indication information being used for indicating a frequency domain interval. The determining, according to the resource indication information, of the first frequency domain resource used by the downlink comprises: determining the first frequency domain resource according to the second frequency domain resource and N-1 frequency domain intervals indicated by the N-1 second indication information.

3. The method of claim 2, wherein, The second indication information is used for indicating at least one of the following parameters of a frequency domain interval: a starting sub-carrier index of the frequency domain interval; a starting physical resource block (PRB) index of the frequency domain interval; a terminal sub-carrier index of the frequency domain interval; a terminal PRB index of the frequency domain interval; a number of continuous sub-carriers of the frequency domain interval; a number of continuous PRBs of the frequency domain interval.

4. The method of claim 1, wherein, The resource indication information comprises first indication information and activation information, the first indication information being used for indicating a continuous second frequency domain resource, and the activation information being used for activating a first frequency domain resource pattern in a plurality of pre-configured frequency domain resource patterns, the first frequency domain resource pattern comprising N-1 unusable frequency domain resources. The determining, according to the resource indication information, of the first frequency domain resource used by the downlink comprises: determining the first frequency domain resource according to the second frequency domain resource and N-1 unusable frequency domain resources in the first frequency domain resource pattern.

5. The method of claim 4, wherein, The method further comprises: receiving radio resource control (RRC) signaling, the RRC signaling being used for configuring the plurality of frequency domain resource patterns for the terminal.

6. The method of claim 1, wherein, The resource indication information comprises M third indication information, the M third indication information being used for indicating the N sub-band resources, wherein M is less than or equal to N. The determining, according to the resource indication information, of the first frequency domain resource used by the downlink comprises: determining the first frequency domain resource according to N sub-band resources indicated by the M third indication information.

7. A communication method characterized by comprising: The method is performed by a network device, and the method comprises: sending resource indication information, the resource indication information being used for a terminal to determine a first frequency domain resource used by a downlink, the first frequency domain resource comprising N sub-band resources, the N sub-band resources being discontinuous, N being an integer greater than or equal to 2.

8. The method of claim 7, wherein, The resource indication information comprises first indication information and N-1 second indication information, the first indication information being used for indicating a continuous second frequency domain resource, each of the second indication information being used for indicating a frequency domain interval; and the first frequency domain resource being determined by the second frequency domain resource and N-1 frequency domain intervals indicated by the N-1 second indication information.

9. The method of claim 8, wherein, The second indication information is used for indicating at least one of the following parameters of a frequency domain interval: a starting sub-carrier index of the frequency domain interval; a starting PRB index of the frequency domain interval; a terminal subcarrier index of the frequency domain interval; a terminal PRB index of the frequency domain interval; a number of consecutive subcarriers of the frequency domain interval; a number of consecutive PRBs of the frequency domain interval.

10. The method of claim 7, wherein, The resource indication information includes first indication information and activation information, the first indication information is used to indicate a continuous second frequency domain resource; and the activation information is used to activate a first frequency domain resource pattern in a plurality of pre-configured frequency domain resource patterns, the first frequency domain resource pattern includes N-1 unavailable frequency domain resources. The first frequency domain resource is determined by the second frequency domain resource and the N-1 unavailable frequency domain resources in the first frequency domain resource pattern.

11. The method of claim 10, wherein, The method further includes: sending RRC signaling, the RRC signaling being used to configure the terminal with the plurality of frequency domain resource patterns.

12. The method of claim 7, wherein, The resource indication information includes M third indication information, the M third indication information is used to indicate the N sub-band resources, where M is less than or equal to N; and the first frequency domain resource is determined by the N sub-band resources indicated by the M third indication information.

13. A terminal, characterized by comprising: a transceiver module configured to receive resource indication information; a processing module configured to determine, according to the resource indication information, a first frequency domain resource used by a downlink, the first frequency domain resource including N sub-band resources, the N sub-band resources being discontinuous, and N being an integer greater than or equal to 2.

14. A network device, comprising: comprising: a transceiver module configured to send resource indication information, the resource indication information being used by a terminal to determine a first frequency domain resource used by a downlink, the first frequency domain resource including N sub-band resources, the N sub-band resources being discontinuous, and N being an integer greater than or equal to 2.

15. A terminal, characterized by comprising: one or more processors; wherein the terminal is configured to perform the communication method of any one of claims 1-6.

16. A network device, comprising: comprising: one or more processors; wherein the network device is configured to perform the communication method of any one of claims 7-12.

17. A communication system, characterized by comprising: a terminal configured to implement the communication method of any one of claims 1-6; and a network device configured to implement the communication method of any one of claims 7-12. when the instructions are run on a communication device, cause the communication device to perform the communication method of any one of claims 1-6 or any one of claims 7-12.

18. A storage medium, the storage medium storing instructions, wherein, The computer program implements the communication method of any one of claims 1-6 or any one of claims 7-12 when executed by a communication device.

19. A computer program product comprising a computer program, characterized in that, ​

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