Scheduling method, terminal device and network device

Abstract

The present application relates to a scheduling method, a terminal device, a network device, a computer-readable storage medium, a computer program product, a computer program and a communication system. The method comprises: a terminal device receiving first configuration information, wherein the first configuration information is used for the terminal device to determine a first bandwidth part (BWP) and a first sub-BWP, the frequency-domain size of the first BWP is less than or equal to the frequency-domain size of a carrier, the frequency-domain size of the first sub-BWP is less than or equal to the frequency-domain size of the first BWP, and the first sub-BWP is located within the frequency-domain range of the first BWP; and the terminal device receiving control information used for scheduling a first physical channel, and determining, on the basis of the type or format of the control information, that the scheduling range of the first physical channel is the first BWP or the first sub-BWP. The embodiments of the present application can effectively achieve a power-saving effect.

Description

Scheduling method, terminal device and network device TECHNICAL FIELD

[0001] The present application relates to the field of communication, and more particularly, to a scheduling method, a terminal device, a network device, a computer readable storage medium, a computer program product, a computer program and a communication system. BACKGROUND

[0002] In the NR (New Radio) system, a BWP (Bandwidth Part) is defined to realize a smaller range of frequency domain resource allocation than the system bandwidth. The network device can configure multiple BWPs through RRC (Radio Resource Control) signaling, and then dynamically activate a certain BWP in the downlink control signaling DCI (Downlink Control Information). The activation / deactivation of the BWP can also be referred to as BWP switching. The current BWP switching mechanism cannot achieve effective terminal power saving.

[0003] SUMMARY

[0004] The embodiments of the present application provide a scheduling method, a terminal device, a network device, a computer readable storage medium, a computer program product, a computer program and a communication system.

[0005] The embodiments of the present application provide a scheduling method, comprising:

[0006] The terminal device receives first configuration information; wherein the first configuration information is used for the terminal device to determine a first bandwidth part BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP;

[0007] The terminal device receives control information used for scheduling the first physical channel, and determines the scheduling range of the first physical channel to be the first BWP or the first sub-BWP according to the type or format of the control information.

[0008] The embodiments of the present application provide a scheduling method, comprising:

[0009] The network device sends first configuration information; wherein the first configuration information is used for the terminal device to determine a first BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP;

[0010] The network device sends control information used for scheduling the first physical channel; wherein the format or type of the control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0011] Embodiments of the present application provide a terminal device, comprising:

[0012] The first communication unit is configured to receive first configuration information and receive control information used for scheduling the first physical channel; wherein the first configuration information is used for the terminal device to determine a first bandwidth part (BWP) and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP;

[0013] The first processing unit is configured to determine, according to the type or format of the control information, that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0014] Embodiments of the present application provide a network device, comprising:

[0015] The second communication unit is configured to send first configuration information and send control information used for scheduling the first physical channel; wherein the first configuration information is used for the terminal device to determine a first BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP; and the format or type of the control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0016] Embodiments of the present application provide a terminal device, comprising: a processor, a memory in communication with the processor, and the memory being configured to store instructions, when the instructions are executed by the processor, the instructions cause the terminal device to perform:

[0017] receive first configuration information and receive control information used for scheduling the first physical channel; wherein the first configuration information is used for the terminal device to determine a first bandwidth part (BWP) and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP;

[0018] determine, according to the type or format of the control information, that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0019] The embodiment of the present application provides a network device, comprising: a processor, a memory in communication with the processor, the memory being used for storing instructions, when the instructions are executed by the processor, the instructions make the network device execute:

[0020] sending first configuration information, and sending control information used for scheduling the first physical channel; wherein the first configuration information is used for the terminal device to determine the first BWP and the first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located in the frequency domain range of the first BWP; the format or type of the control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0021] The embodiment of the present application provides a chip for implementing the above method.

[0022] Specifically, the chip comprises: a processor, used for calling and running a computer program from a memory, so that a device installed with the chip executes the above method.

[0023] The embodiment of the present application provides a computer readable storage medium, used for storing a computer program, when the computer program is executed by a device, the device executes the above method.

[0024] The embodiment of the present application provides a computer program product, comprising computer program instructions, the computer program instructions make a computer execute the above method.

[0025] The embodiment of the present application provides a computer program, when the computer program is executed on a computer, the computer executes the above method.

[0026] The embodiment of the present application provides a communication system, comprising: a terminal device and a network device used for executing the above method.

[0027] The embodiment of the present application, the network device can configure a relatively narrow first sub-BWP in the frequency domain range of the first BWP, and the switching between the first BWP and the first sub-BWP is realized through the format or type of the control information, so that the terminal device can limit the baseband processing in the first sub-BWP with smaller bandwidth when the data rate is low, and temporarily expand the baseband processing to the whole first BWP range only when the service with higher data rate is processed, thereby saving the baseband processing of the terminal device, and effectively realizing the effect of power saving. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is a schematic diagram of a communication system according to the embodiment of the present application.

[0029] Fig. 2 is a schematic diagram of a basic working flow in a wireless communication system.

[0030] FIG. 3 is a schematic diagram of BWP switching.

[0031] FIG. 4 is a schematic diagram of BWP switching latency.

[0032] FIG. 5 is a schematic flowchart of a scheduling method performed by a terminal device according to an embodiment of the present application.

[0033] FIG. 6 is a schematic flowchart of a scheduling method performed by a network device according to an embodiment of the present application.

[0034] FIG. 7 is a schematic diagram of a scheduling method in application example one of an embodiment of the present application.

[0035] FIG. 8 is a schematic diagram of a scheduling method in application example two of an embodiment of the present application.

[0036] FIG. 9 is a schematic diagram of a scheduling method in application example three of an embodiment of the present application.

[0037] FIG. 10 is a schematic diagram of an indication manner of frequency domain size and location in application example three of an embodiment of the present application.

[0038] FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

[0039] FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present application.

[0040] FIG. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.

[0041] FIG. 14 is a schematic structural diagram of a chip according to an embodiment of the present application.

[0042] FIG. 15 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0044] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an Advanced long term evolution (LTE-A) system, a New Radio (NR) system, an evolved system of the NR system, a LTE-based access to unlicensed spectrum (LTE-U) system, a NR-based access to unlicensed spectrum (NR-U) system, a Non-Terrestrial Networks (NTN) system, a Universal Mobile Telecommunication System (UMTS), a Wireless Local Area Networks (WLAN), a Wireless Fidelity (WiFi), a 5th-Generation (5G) system, a 6th-Generation (6G) system, or other communication systems, and the like.

[0045] Generally, a conventional communication system supports a limited number of connections, and is easy to implement. However, with the development of communication technology, a mobile communication system will not only support conventional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, and the like. The embodiments of the present application can also be applied to these communication systems.

[0046] In an embodiment, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) network deployment scenario.

[0047] In an implementation, the communication system in embodiments of the present application can be applied to unlicensed spectrum, which can also be considered as shared spectrum, or applied to licensed spectrum, which can also be considered as unshared spectrum.

[0048] Embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein the terminal device can also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0049] The terminal device can be a station (STA) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0050] In embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable, or in-vehicle; can also be deployed on water surface (such as ships, etc.); and can also be deployed in the air (such as airplanes, balloons, and satellites, etc.).

[0051] In embodiments of the present application, the terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, 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 treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0052] By way of example and not limitation, in embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes. The wearable device is a portable device that is directly worn on the body or integrated into the clothes or accessories of the user. The wearable device is not only a hardware device, but also a device that realizes powerful functions through software support and data interaction and cloud interaction. The broad sense of wearable smart devices includes devices with full functions and large sizes that can realize complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and devices that focus on a certain type of application function and need to be used in cooperation with other devices, such as smart phones, such as various smart wristbands and smart jewelry for monitoring vital signs.

[0053] In embodiments of the present application, the network device can be a device for communicating with the mobile device, and the network device can be an access point (Access Point, AP) in a WLAN, an evolved node B (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network (gNB) or a future evolved PLMN network or a network device in an NTN network, etc.

[0054] By way of example and not limitation, in embodiments of the present application, the network device can have mobile characteristics, for example, the network device can be a mobile device. Alternatively, the network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geostationary earth orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, etc. Alternatively, the network device can also be a base station arranged at a position on land, water, etc.

[0055] In the embodiments of the present application, the network device can serve a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell. The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell (Small cell). The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, and the like. The small cell has the characteristics of small coverage and low transmit power, and is suitable for providing high-speed data transmission services.

[0056] FIG. 1 illustrates a communication system 100. The communication system includes one network device 110 and two terminal devices 120. In an embodiment, the communication system 100 can include multiple network devices 110, and each network device 110 can include other numbers of terminal devices 120 within its coverage, which is not limited in the embodiments of the present application.

[0057] In an embodiment, the communication system 100 can further include a mobility management entity (MME), an access and mobility management function (AMF), and other network entities, which are not limited in the embodiments of the present application.

[0058] The network device can include an access network device and a core network device. That is, the wireless communication system further includes multiple core networks for communicating with the access network device. The access network device can be an evolved node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a “small base station”), a pico base station, an access point (AP), a transmission point (TP), or a new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next radio (NR) system, or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0059] It should be understood that the devices with communication function in the network / system in the embodiments of the present application can be referred to as communication devices. For example, the communication system shown in FIG. 1, the communication devices can include network devices and terminal devices with communication function, which can be specific devices in the embodiments of the present application, and will not be described herein again; the communication devices can also include other devices in the communication system, such as network controllers, mobile management entities and other network entities, which are not limited in the embodiments of the present application.

[0060] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein is only used to describe the association relationship of the associated objects. For example, A and / or B can represent three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " generally represents an "or" relationship between the associated objects.

[0061] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained by A directly; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0062] In the description of the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, etc.

[0063] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described as follows. The following related technologies can be combined with the technical solutions of the embodiments of the present application in any way, and all belong to the protection scope of the embodiments of the present application.

[0064] (I) Basic working process of wireless communication system

[0065] FIG. 2 shows a schematic diagram of the basic working process in the wireless communication system. As shown in FIG. 2, the basic working process in the wireless communication system can generally include:

[0066] At the transmitting end, the transmitter performs channel coding and modulation on the source bit stream to obtain modulated symbols; pilot (i.e. reference signal) symbols are inserted into the modulated symbols for channel estimation and symbol detection at the receiving end, and finally a transmission signal is formed. The transmission signal passes through the channel to the receiving end.

[0067] At the receiving end, the receiver first uses the pilot to perform channel estimation, and feeds back the CSI (Channel State Information) obtained through channel estimation to the transmitting end through a feedback link, for the transmitter to adjust the channel coding, modulation, precoding, etc.; finally, the receiver obtains the final recovered bit stream through symbol detection, demodulation, and channel decoding, etc.

[0068] The above process is a simple illustration, and other unlisted modules such as resource mapping, precoding, interference cancellation, CSI measurement, etc. are also included in the conventional communication system, and these modules are also designed and implemented separately, and then the independent modules are integrated to form a complete wireless communication system.

[0069] (II) BWP of 5G system

[0070] In the 5G NR system, the concept of BWP is defined to realize a smaller range of frequency domain resource allocation than the system bandwidth. The network device can configure multiple BWPs through RRC signaling, and then dynamically activate a certain BWP in the downlink control signaling DCI. Each BWP or each type of BWP is based on a parameter set (including subcarrier spacing, cyclic prefix (CP), etc.). According to the current scheme, only one BWP can be activated for a terminal, and when a new BWP is activated, the original BWP is deactivated.

[0071] FIG. 3 is a schematic diagram of BWP switching. As shown in FIG. 3, when a smaller BWP (such as DL BWP1 in FIG. 3) is in an activated state, various channels such as PDSCH (Physical Downlink Shared Channel) are scheduled (scheduled through DCI) within the frequency domain range of DL BWP1. After a larger BWP (such as DL BWP2) is activated, DL BWP1 is deactivated, and various channels (such as PDSCH) are scheduled within the frequency domain range of DL BWP2.

[0072] When DL BWP2 is deactivated (for example, deactivated when the related timer expires), it will fall back to DL BWP1, and various channels (such as PDSCH) are scheduled within the frequency domain range of DL BWP1.

[0073] One of the main uses of BWP switching is to achieve terminal power saving. That is, when the data rate is high, work in a larger BWP, and when the data rate is low, switch to a smaller BWP to achieve power saving effect.

[0074] However, the switching of the BWP needs a time delay. FIG. 4 is a schematic diagram of the BWP switching time delay. In the BWP switching time delay (such as the BWP switching time delay of switching from the BWP1 with the frequency domain size of W1 to the BWP2 with the frequency domain size of W2 in FIG. 4), the terminal cannot normally send or receive signals, and therefore the network device cannot schedule the uplink and downlink data in the BWP switching time delay. If the terminal finds that the starting time of the scheduled PDSCH or PUSCH (Physical Uplink Shared Channel) falls within the BWP switching time delay process, the terminal can regard this as an error case and not receive the PDSCH or send the PUSCH according to the scheduling. According to the provisions of 5G, the BWP switching time delay is several time slots, that is, several time slots of communication interruption will be caused. Therefore, the BWP cannot be frequently switched, and as long as there is a service with a higher data rate, the terminal can only work in a larger BWP and cannot fall back to a smaller BWP, and therefore it is difficult to achieve effective terminal power saving through BWP switching. If effective terminal power saving is to be achieved, power saving must be achieved in the case that the terminal works in a larger BWP.

[0075] The technical scheme of the embodiment of the present application mainly aims to solve the above technical problems.

[0076] FIG. 5 is a schematic flowchart of a scheduling method performed by a terminal device according to an embodiment of the present application. The method includes at least part of the following contents.

[0077] S510, the terminal device receives first configuration information; wherein the first configuration information is used for the terminal device to determine a first BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP.

[0078] S520, the terminal device receives control information used for scheduling a first physical channel, and determines, according to the type or format of the control information, that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0079] In the above method, the first configuration information is used for the terminal device to determine the first BWP and the first sub-BWP, that is, the first configuration information is used for configuring the first BWP and the first sub-BWP. Based on the above step S510, the terminal device can determine the first BWP and the first sub-BWP according to the first configuration information.

[0080] Optionally, the first configuration information can be used to indicate one or more of the frequency domain location, the frequency domain size, the corresponding numerology, and the like of the first BWP, and to indicate one or more of the frequency domain location, the frequency domain size, the corresponding numerology, and the like of the first sub-BWP. Here, the frequency domain size refers to the range size occupied in the frequency domain, which can also be referred to as the frequency domain width.

[0081] According to the above method, the first sub-BWP is located within the frequency domain range of the first BWP, i.e., the first sub-BWP is a sub-BWP of the first BWP, where the sub-BWP can be understood as a subset of the BWP. In other words, the first BWP contains the first sub-BWP. Since the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, the first sub-BWP is part or all of the first BWP.

[0082] Optionally, the first configuration information can be RRC signaling or a system message.

[0083] According to the above method, when the terminal device receives the control information scheduling the channel, the terminal device determines, according to the type or format of the control information, the scheduling range of the first physical channel scheduled by the control information to be the first BWP or the first sub-BWP. In other words, the terminal device determines the scheduling range of the first physical channel between the first BWP and the first sub-BWP according to the type or format of the control information.

[0084] For example, when the type of the control information is the first type, the terminal device can determine the scheduling range of the first physical channel to be the first BWP; when the type of the control information is the second type, the terminal device determines the scheduling range of the first physical channel to be the first sub-BWP. Alternatively, when the control information is of the first format, the terminal device determines the scheduling range of the first physical channel to be the first BWP; when the type of the control information is of the second format, the terminal device determines the scheduling range of the first physical channel to be the first sub-BWP.

[0085] FIG. 6 is a schematic flowchart of a scheduling method performed by a network device according to an embodiment of the present application. The method includes at least part of the following.

[0086] S610, the network device sends first configuration information; wherein the first configuration information is used by the terminal device to determine the first BWP and the first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP.

[0087] S620, the network device sends control information for scheduling the first physical channel; wherein the format or type of the control information is used by the terminal device to determine the scheduling range of the first physical channel to be the first BWP or the first sub-BWP.

[0088] The technical details in the scheduling method performed by the network device can refer to the corresponding content in the scheduling method performed by the terminal device in the foregoing embodiments, and will not be described here.

[0089] According to any of the foregoing embodiments, the network device can configure a relatively narrow first sub-BWP in the frequency domain range of the first BWP, and by controlling the format or type of the control information to switch between the first BWP and the first sub-BWP, the terminal device can limit the baseband processing to the first sub-BWP with a smaller bandwidth when the data rate is low, and temporarily expand the baseband processing to the entire first BWP range only when processing services with a higher data rate, thereby saving the baseband processing of the terminal device and effectively achieving the effect of power saving.

[0090] In some embodiments, the scheduling method can further include, in the case where the scheduling range of the first physical channel is the first sub-BWP, the terminal device determining, based on the control information, the frequency domain resource of the first physical channel from the multiple frequency domain resources in the first sub-BWP. That is, in the case where the scheduling range of the first physical channel is the first sub-BWP, the control information is also used by the terminal device to determine the frequency domain resource of the first physical channel from the multiple frequency domain resources in the first sub-BWP.

[0091] For example, the first sub-BWP can be divided into multiple frequency domain resources, including candidate frequency domain resource 1, candidate frequency domain resource 2, and candidate frequency domain resource 3. The terminal device can select one of the three frequency domain resources as the frequency domain resource of the first physical channel according to the received control information for scheduling the first physical channel, for example, candidate frequency domain resource 1 as the frequency domain resource of the first physical channel.

[0092] Since the frequency domain width of the first sub-BWP is small, the number of assignable frequency domain resources is small, and therefore, a few possible frequency domain resources are set in the first sub-BWP, and one of the frequency domain resources is determined as the frequency domain resource of the first physical channel according to the control information, which can simplify the indication mode of the frequency domain resource and is conducive to reducing the detection complexity or reducing the transmission overhead.

[0093] In some embodiments, the scheduling method performed by the network device can further include that the network device sends second configuration information; wherein the second configuration information is used by the terminal device to determine the multiple frequency domain resources.

[0094] In some embodiments, the scheduling method performed by the terminal device can further include that the terminal device receives second configuration information; wherein the second configuration information is used by the terminal device to determine the multiple frequency domain resources.

[0095] In the above embodiments, the second configuration information is used for the terminal device to determine the plurality of frequency domain resources, that is, the terminal device can determine the plurality of frequency domain resources based on the second configuration information. In other words, the second configuration information is used to configure the plurality of frequency domain resources. Optionally, the second configuration information can include RRC signaling or system information. The second configuration information can be sent before the terminal device receives the first physical channel for scheduling.

[0096] According to the above embodiments, the terminal device can select one of the plurality of frequency domain resources configured in advance by the second configuration information as the frequency domain resource of the first physical channel, which can simplify the indication manner of the frequency domain resource and be conducive to reducing the detection complexity or reducing the transmission overhead.

[0097] Optionally, the second configuration information can be used to configure information such as the number of frequency domain resources and / or the frequency domain size. In some embodiments, the second configuration information can configure the number N of frequency domain resources to indicate the terminal device to determine N frequency domain resources with the same frequency domain size in the first sub-BWP; or configure the frequency domain size of the frequency domain resources to indicate the terminal device to determine the plurality of frequency domain resources according to the frequency domain size from the start of the first sub-BWP. The above manner can simplify the configuration of the frequency domain resources.

[0098] In some embodiments, according to the type or format of the control information, determining that the scheduling range of the first physical channel is the first BWP or the first sub-BWP can include:

[0099] In the case where the control information includes DCI, determining that the scheduling range of the first physical channel is the first BWP; and / or,

[0100] In the case where the control information includes sequence-based control information, determining that the scheduling range of the first physical channel is the first sub-BWP.

[0101] That is, the control information used to schedule the first physical channel includes DCI or sequence-based control information; the DCI is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP; and the sequence-based control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

[0102] Here, the DCI and the sequence-based control information are two different types of control information. The DCI can carry more information and can flexibly schedule the first physical channel in a larger bandwidth range, but requires the terminal device to decode the channel coding and perform blind detection on the PDCCH. The sequence-based control information refers to control information that can be obtained by sequence detection. The complexity of sequence detection is relatively low, and the energy consumption is also small. Optionally, the sequence-based control information can include a DSI (Downlink Sequence Indicator).

[0103] The above embodiment can switch the type of control information between the first BWP and the first sub-BWP, so that the terminal can limit the baseband processing within the smaller first sub-BWP when the data rate is low, and temporarily expand the baseband processing to the entire first BWP range only when processing high data rate services. Since in a mobile communication system, the terminal only has low data rate services (such as heartbeat packets, short messages of social network apps, etc.) most of the time, and high data rate service packets only appear at a few times, data can be scheduled only within the first sub-BWP, thereby saving the baseband processing of the base station and the terminal, and achieving the effect of power saving.

[0104] It can be understood that the above switching of the type of control information between the first BWP and the first sub-BWP can also be implemented in other ways. In some embodiments, the scheduling range of the first physical channel can be determined as the first BWP when the control information includes sequence-based control information; and the scheduling range of the first physical channel can be determined as the first sub-BWP when the control information includes DCI. Any changes or alternatives that can be easily thought of by those skilled in the art shall also be covered within the protection scope of the present application.

[0105] In some embodiments, the above scheduling method further includes: the terminal device detects a sequence according to the above sequence-based control information, and determines the frequency domain resource of the first physical channel in the first sub-BWP according to the sequence. That is, the sequence-based control information is used for the terminal device to detect a sequence, and the sequence is used to determine the frequency domain resource of the first physical channel in the first sub-BWP.

[0106] The above method of determining the frequency domain resource of the first physical channel can also be combined with the method of determining the frequency domain resource of the first physical channel in the plurality of frequency domain resources in the first sub-BWP in the foregoing embodiments. That is, in some embodiments, the terminal device determines the frequency domain resource of the first physical channel in the plurality of frequency domain resources in the first sub-BWP based on the control information, which can include: the terminal device detects a sequence according to the above sequence-based control information, and determines the frequency domain resource of the first physical channel in the plurality of frequency domain resources in the first sub-BWP according to the sequence. Different sequences correspond to different frequency domain resources in the first sub-BWP.

[0107] For example, the plurality of frequency domain resources in the first sub-BWP include candidate frequency domain resource 1, candidate frequency domain resource 2, and candidate frequency domain resource 3. The terminal device can detect a sequence according to the sequence-based control information, and select one frequency domain resource corresponding to the sequence from the three frequency domain resources as the frequency domain resource of the first physical channel.

[0108] Since the bandwidth of the first sub-BWP is small, the resources that need to be indicated can be simplified, and therefore sequence-based control information can be used for resource indication in the first sub-BWP to further reduce the energy consumption of the terminal.

[0109] In some embodiments, the scheduling method performed by the network device further includes: the network device sending third configuration information; wherein the third configuration information is used to indicate the mapping relationship between the sequence and the frequency domain resource in the first sub-BWP.

[0110] In some embodiments, the scheduling method performed by the terminal device further includes: the terminal device receiving third configuration information; wherein the third configuration information is used to indicate the mapping relationship between the sequence and the frequency domain resource in the first sub-BWP.

[0111] In the above embodiments, the third configuration information is used to indicate the mapping relationship between the sequence and the frequency domain resource in the first sub-BWP, that is, the terminal device can determine the mapping relationship between the detected sequence and the frequency domain resource in the first sub-BWP based on the third configuration information.

[0112] Optionally, the third configuration information can be used to indicate the one-to-one mapping relationship between a plurality of sequences and a plurality of frequency domain resources, or in other words, the third configuration information can be used to indicate the frequency domain resource corresponding to each sequence in the plurality of sequences. The terminal device can determine the frequency domain resource corresponding to the detected sequence as the frequency domain resource of the first physical channel based on the detected sequence and the mapping relationship indicated by the third configuration information. In this way, the complexity of the terminal device in detecting the frequency domain resource scheduling information can be reduced, and the terminal energy can be further saved.

[0113] Optionally, the third configuration information can include RRC signaling or a system message.

[0114] In some embodiments, according to the type or format of the control information, determining that the scheduling range of the first physical channel is the first BWP or the first sub-BWP can include:

[0115] In the case where the control information includes DCI of the first format, determining that the scheduling range of the first physical channel is the first BWP; and / or,

[0116] In the case where the control information includes DCI of the second format, determining that the scheduling range of the first physical channel is the first sub-BWP.

[0117] That is, the control information used for scheduling the first physical channel includes DCI of a first format or DCI of a second format; the DCI of the first format is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP; and the DCI of the second format is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP. The first format or the second format is, for example, DCI Format 1 (Format 1), DCI Format 2 (Format 2), and the like.

[0118] In the above embodiments, the control information used for scheduling the first physical channel is DCI, and the switching between the first BWP and the first sub-BWP is realized by the DCI format. When the data rate is low, the terminal device can limit the baseband processing within the smaller first sub-BWP, and temporarily expand the baseband processing to the entire first BWP range only when processing services with higher data rates. Since the terminal device only needs to support the detection of one kind of control information, the complexity of the terminal device can be reduced.

[0119] In some embodiments, the scheduling method performed by the network device further includes: the network device sending fourth configuration information; wherein the fourth configuration information is used to indicate that the DCI format corresponding to the first sub-BWP includes the second format.

[0120] In some embodiments, the scheduling method performed by the terminal device further includes: the terminal device receiving fourth configuration information; wherein the fourth configuration information is used to indicate that the DCI format corresponding to the first sub-BWP includes the second format.

[0121] In the above embodiments, the fourth configuration information is used to indicate that the DCI format corresponding to the first sub-BWP includes the second format. That is, the terminal device can determine, based on the fourth configuration information, that the DCI format corresponding to the first sub-BWP includes the second format, and further determine that the scheduling range of the first physical channel is the first sub-BWP when the control information used for scheduling the first physical channel includes the DCI of the second format. In other words, the fourth configuration information is used to configure the DCI format corresponding to the first sub-BWP.

[0122] Optionally, the fourth configuration information can include RRC signaling or system information. The fourth configuration information can be sent before the terminal device receives the control information used for scheduling the first physical channel.

[0123] In some embodiments, the first configuration information is further used to indicate that the DCI format corresponding to the first BWP includes the first format. Or in other words, the first configuration information is further used to configure the DCI format corresponding to the first BWP. In this way, the terminal device can determine that the scheduling range of the first physical channel is the first BWP when the received control information used for scheduling the first physical channel includes the DCI of the first format.

[0124] In some embodiments, the first configuration information can comprise first band information, the first band information being used to indicate a frequency domain size of the first sub-BWP. That is, the first configuration information configures the first sub-BWP, including configuring the frequency domain size of the first sub-BWP.

[0125] In some embodiments, the frequency domain size of the first sub-BWP is indicated by a number of RBs (Resource Blocks) in the first sub-BWP. In other words, the number of RBs is used to represent the frequency domain size of the first sub-BWP.

[0126] In practical applications, there can be multiple ways to indicate the frequency domain size of the first sub-BWP. Several different ways are provided below.

[0127] In one implementation, the frequency domain size of the first sub-BWP can be jointly encoded with the frequency domain location of the first sub-BWP. In some embodiments, the first band information comprises a first code; the first code is determined based on the number of RBs in the first sub-BWP and the frequency domain location of the first sub-BWP.

[0128] Exemplarily, the first band information can be encoded according to the number of RBs in the first sub-BWP and the frequency domain location of the first sub-BWP according to a preset formula, so as to indicate the frequency domain size and the frequency domain location of the first sub-BWP through the first band information. Optionally, the frequency domain location can be represented based on the starting point or the center frequency of the first sub-BWP. Optionally, the frequency domain location can be the number of RBs of the frequency domain starting point of the first sub-BWP relative to the frequency domain starting point of the first BWP.

[0129] The above embodiments can indicate any frequency domain location and frequency domain size within the first sub-BWP, which has great flexibility.

[0130] In another implementation, the frequency domain size of the first sub-BWP can be encoded separately from the frequency domain location of the first sub-BWP. Optionally, the first band information can be used only to indicate the frequency domain size of the first sub-BWP, and the frequency domain location of the first sub-BWP is determined through other information or pre-configuration.

[0131] In some embodiments, the starting point of the first sub-BWP is the same as the starting point of the first BWP.

[0132] In some embodiments, the center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

[0133] The above embodiments can reduce the signaling overhead of the first configuration information by determining the frequency domain location of the first sub-BWP based on the frequency domain location of the first BWP.

[0134] In some embodiments, the frequency domain size of the first sub-BWP can also be indicated by indicating an OFDM (Orthogonal Frequency Division Multiplexing) subcarrier spacing of the first sub-BWP. That is, the first frequency band information can include information of the OFDM subcarrier spacing of the first sub-BWP.

[0135] In some embodiments, the first physical channel includes at least one of a PDSCH, a PUSCH, and a PUCCH.

[0136] In order to facilitate understanding of the technical solutions of the present application, several specific application examples are provided below.

[0137] Application Example One: Switching between BWP and sub-BWP through control information type.

[0138] In the related art, a network device can configure a terminal with two BWPs, one large and one small. When there is no high data rate service for a long time, the terminal can work in the smaller BWP (hereinafter referred to as BWP1), and the terminal radio frequency circuit and baseband chip can work in a smaller bandwidth, thereby achieving power saving effect. When there may be high data rate service, the terminal can switch to the larger BWP (hereinafter referred to as BWP2). However, since the switching between BWPs requires a long switching delay, it is not possible to quickly switch from BWP1 to BWP2, so as long as there may be high data rate service, the terminal must always work in BWP2, and therefore it is difficult to effectively achieve power saving through BWP switching for a terminal in an active service state.

[0139] The sub-BWP and BWP switching method of the present application can achieve power saving operation of the baseband chip when the terminal is in an active service state. FIG. 7 is a schematic diagram of a scheduling method in the present application example. As shown in FIG. 7, a smaller sub-BWP (denoted by W, also referred to as BWP W) can be configured within BWP2. When the terminal detects a second control information (an example in the figure is a DSI based on sequence detection), the frequency domain resource of the first physical channel (an example in the figure is a PDSCH) is determined within W according to the indication of the DSI; when the terminal detects a first control information (an example in the figure is a DCI), the frequency domain resource of the first physical channel (an example in the figure is a PDSCH) is determined within BWP2 according to the indication of the DCI.

[0140] Based on the type of control information, switching between BWP and sub-BWP frequency bands can limit the baseband processing of the terminal to a smaller sub-BWP W when the data rate is low, and temporarily expand the baseband processing to the entire BWP range only when processing high data rate services. Since in a mobile communication system, the terminal only has low data rate services (such as heartbeat packets, short messages of social network apps, etc.) most of the time, and high data rate service packets only appear at a few times, data can be scheduled only within the sub-BWP W, thereby saving the baseband processing of network devices and terminals and achieving the effect of power saving.

[0141] Application Example Two: DSI-based scheduling within a sub-BWP.

[0142] Due to the small bandwidth of the BWP W, it is less efficient to use DCI for scheduling, and a low-complexity resource scheduling method can be used. For example, based on the sequence detection result of the DSI, one of the pre-configured several candidate frequency domain resources can be selected. Figure 8 is a schematic diagram of the scheduling method in this application example. As shown in the example of Figure 8, within the sub-BWP W, four candidate frequency domain resources are configured by the second configuration information: candidate frequency domain resource 1, candidate frequency domain resource 2, candidate frequency domain resource 3, and candidate frequency domain resource 4. According to the sequence detection result of the terminal on the DSI, one of the four candidate frequency domain resources is determined.

[0143] The second configuration information can configure the correspondence between the sequence that can be detected from the second control information (DSI) and the candidate frequency domain resource within the sub-BWP W, as shown in Table 1. Then, as shown in Figure 8, when the terminal detects sequence 2 from the DSI, the terminal determines that the PDSCH is transmitted in candidate frequency domain resource 2; when the terminal detects sequence 4 from the DSI, the terminal determines that the PDSCH is transmitted in candidate frequency domain resource 4.

[0144] Table 1:

[0145] The frequency domain resources available in the sub-BWP are less, and the flexible frequency domain resource scheduling based on DCI will bring unnecessary complexity. Since decoding the channel code and blind detection of PDCCH are required for detecting DCI, the terminal will consume a large amount of energy even if it is not scheduled resources. The present embodiment can only configure a few possible frequency domain resources in a small scheduling bandwidth, making it possible to use sequence detection for frequency domain resource scheduling. Compared with DCI blind detection, the complexity of sequence detection based on DSI is much lower, and the energy consumption is much less. Moreover, the terminal will be scheduled a certain frequency domain resource when it detects the target sequence, avoiding the "invalid detection" problem in the case of no scheduling, and further saving the terminal energy. Based on the type of control information, switching between the BWP and the sub-BWP can limit the baseband processing of the terminal to a small sub-BWP W when the data rate is low, and temporarily expand the baseband processing to the entire BWP range only when processing high data rate services. Thus, while taking into account high data rate transmission, the terminal power saving effect in small bandwidth can also be realized.

[0146] Application Example Three: Switching between BWP and sub-BWP through DCI format.

[0147] The BWP and sub-BWP can also be switched through different DCI formats (DCI format), that is, the first control information and the second control information are DCIs of different DCI formats. FIG. 9 is a schematic diagram of the scheduling method in the present application example. The first configuration information configures the DCI format (the example in FIG. 9 is DCI Format 1) available for BWP2. A relatively small sub-BWP W can be configured inside BWP2, and the DCI format (the example in FIG. 9 is DCI Format 2) for the sub-BWP W is configured through the fourth configuration information. When the terminal detects the second control information (DCI of DCI Format 2), the frequency domain resources of the first physical channel (the example in the figure is PDSCH) are determined within W according to the indication of the DCI of DCI Format 2; when the terminal detects the first control information (the example in the figure is DCI), the frequency domain resources of the first physical channel (the example in the figure is PDSCH) are determined within BWP2 according to the indication of the DCI of DCI Format 1.

[0148] Based on different DCI formats, switching between BWP and sub-BWP can achieve that the terminal limits its baseband processing in a small sub-BWP W when the data rate is low, and temporarily expands its baseband processing to the entire BWP range when processing high data rate services. Since in a mobile communication system, the terminal only has low data rate services (such as heartbeat packets, short messages of social network apps, etc.) most of the time, and high data rate service packets only appear at a few times, data can be scheduled only in the sub-BWP W, thereby saving the baseband processing of the base station and the terminal, and achieving the effect of power saving. Compared with the DSI scheme, although the detection of DCI consumes slightly more power than the detection of DSI, the terminal only needs to support the detection of one type of control information, which can reduce the complexity of the terminal.

[0149] Application Example Four: Indicating the size and position of the sub-BWP (hereinafter referred to as W) in the BWP.

[0150] There are two ways to indicate the frequency domain size and position of W in the BWP through the first frequency band information. FIG. 10 is a schematic diagram of one of the ways to indicate the frequency domain size and position of the sub-BWP in the application example. This way indicates the size and frequency domain position of W, the size of W is the number of resource blocks (RBs) contained by W, and the information of the frequency domain position of W in the BWP is the number of RBs of the starting point of W relative to the starting point of the BWP.

[0151] Another way is that the first frequency band information only contains the information of the size of W, such as the information of the number of resource blocks (RBs) of W. In this case, the frequency domain position of W can be determined based on the frequency domain position of the BWP, and the starting point of W is the starting point of the BWP, or the center frequency of W is the center frequency of the BWP.

[0152] The advantage of the first indication method described above is that it has the greatest flexibility, and the position of W can be flexibly indicated within the frequency domain range of the BWP. The advantage of the second indication method is that it has a lower signaling overhead.

[0153] FIG. 11 is a schematic diagram of the constituent structure of a terminal device 1100 according to an embodiment of the present application, which includes:

[0154] The first communication unit 1101 is configured to receive first configuration information and receive control information for scheduling a first physical channel; wherein the first configuration information is used by the terminal device to determine a first bandwidth part BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP;

[0155] The first processing unit 1102 is configured to determine, according to a type or a format of the control information, that a scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0156] In some embodiments, the first processing unit 1102 is configured to, in a case where the scheduling range of the first physical channel is the first sub-BWP, determine, based on the control information, a frequency domain resource of the first physical channel in a plurality of frequency domain resources in the first sub-BWP.

[0157] In some embodiments, the first communication unit 1101 is configured to receive second configuration information; wherein the second configuration information is used by the terminal device to determine the plurality of frequency domain resources.

[0158] In some embodiments, the first processing unit 1102 is configured to, in a case where the control information comprises downlink control information (DCI), determine that the scheduling range of the first physical channel is the first BWP; and / or,

[0159] In a case where the control information comprises sequence-based control information, determine that the scheduling range of the first physical channel is the first sub-BWP.

[0160] In some embodiments, the first processing unit 1102 is configured to detect a sequence from the sequence-based control information, and determine, according to the sequence, a frequency domain resource of the first physical channel in the first sub-BWP.

[0161] In some embodiments, the first communication unit 1101 is configured to receive third configuration information; wherein the third configuration information is used to indicate a mapping relationship between the sequence and a frequency domain resource in the first sub-BWP.

[0162] In some embodiments, the first processing unit 1102 is configured to, in a case where the control information comprises DCI of a first format, determine that the scheduling range of the first physical channel is the first BWP; and / or,

[0163] In a case where the control information comprises DCI of a second format, determine that the scheduling range of the first physical channel is the first sub-BWP.

[0164] In some embodiments, the first communication unit 1101 is configured to receive fourth configuration information; wherein the fourth configuration information is used to indicate that a DCI format corresponding to the first sub-BWP comprises the second format.

[0165] In some embodiments, the first configuration information is further used to indicate that a DCI format corresponding to the first BWP comprises the first format.

[0166] In some embodiments, the first configuration information comprises first frequency band information, and the first frequency band information is used to indicate a frequency domain size of the first sub-BWP.

[0167] In some embodiments, the frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

[0168] In some embodiments, the first frequency band information comprises a first code; the first code is determined based on the number of RBs in the first sub-BWP and the frequency domain location of the first sub-BWP.

[0169] In some embodiments, the starting point of the first sub-BWP is the same as the starting point of the first BWP.

[0170] In some embodiments, the center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

[0171] In some embodiments, the first physical channel comprises at least one of a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and a physical uplink control channel (PUCCH).

[0172] FIG. 12 is a schematic diagram of the constituent structure of a network device 1200 according to an embodiment of the present application, comprising:

[0173] The second communication unit 1201 is configured to send first configuration information and control information for scheduling a first physical channel; wherein the first configuration information is used by the terminal device to determine a first BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP; and the format or type of the control information is used by the terminal device to determine that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0174] In some embodiments, in the case where the scheduling range of the first physical channel is the first sub-BWP, the control information is further used by the terminal device to determine the frequency domain resource of the first physical channel from a plurality of frequency domain resources in the first sub-BWP.

[0175] In some embodiments, the second communication unit 1201 is configured to send second configuration information; wherein the second configuration information is used by the terminal device to determine a plurality of frequency domain resources.

[0176] In some embodiments, the control information comprises DCI or sequence-based control information; the DCI is used by the terminal device to determine that the scheduling range of the first physical channel is the first BWP; and the sequence-based control information is used by the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

[0177] In some embodiments, the sequence-based control information is used by the terminal device to detect a sequence, and the sequence is used by the terminal device to determine the frequency domain resource of the first physical channel in the first sub-BWP.

[0178] In some embodiments, the second communication unit 1201 is configured to send third configuration information, wherein the third configuration information is used to indicate a mapping relationship between a sequence and a frequency domain resource in the first sub-BWP.

[0179] In some embodiments, the control information comprises DCI in a first format or DCI in a second format, wherein the DCI in the first format is used to instruct the terminal device to determine that the scheduling range of the first physical channel is the first BWP, and the DCI in the second format is used to instruct the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

[0180] In some embodiments, the second communication unit 1201 is configured to send fourth configuration information, wherein the fourth configuration information is used to indicate that the DCI format corresponding to the first sub-BWP comprises the second format.

[0181] In some embodiments, the first configuration information is further used to indicate that the DCI format corresponding to the first BWP comprises the first format.

[0182] In some embodiments, the first configuration information comprises first frequency band information, wherein the first frequency band information is used to indicate the frequency domain size of the first sub-BWP.

[0183] In some embodiments, the frequency domain size of the first sub-BWP is indicated by the number of RBs in the first sub-BWP.

[0184] In some embodiments, the first frequency band information comprises a first code, wherein the first code is determined based on the number of RBs in the first sub-BWP and the frequency domain position of the first sub-BWP.

[0185] In some embodiments, the starting point of the first sub-BWP is the same as the starting point of the first BWP.

[0186] In some embodiments, the center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

[0187] In some embodiments, the first physical channel comprises at least one of a PDSCH, a PUSCH and a PUCCH.

[0188] The device of the embodiments of the present application can realize the corresponding functions of each device in the communication method embodiments described above. The processes, functions, implementation manners and advantages of each module (sub-module, unit or component, etc.) in the device can be referred to the corresponding description of the method embodiments, which will not be described here. It should be noted that the functions described with respect to each module (sub-module, unit or component, etc.) in the device of the embodiments of the present application can be realized by different modules (sub-modules, units or components, etc.), or by the same module (sub-module, unit or component, etc.).

[0189] FIG. 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application. The communication device 1300 includes a processor 1310, which can invoke and run a computer program from a memory to enable the communication device 1300 to implement the method in the embodiments of the present application.

[0190] In a possible implementation, the communication device 1300 can further include a memory 1320. The processor 1310 can invoke and run a computer program from the memory 1320 to enable the communication device 1300 to implement the method in the embodiments of the present application. The memory 1320 can be a separate device independent of the processor 1310, or can be integrated in the processor 1310. In a possible implementation, the communication device 1300 can further include a transceiver 1330, which can be controlled by the processor 1310 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices. The transceiver 1330 can include a transmitter and a receiver. The transceiver 1330 can further include an antenna, and the number of antennas can be one or more.

[0191] An embodiment of the present application provides a terminal device, including a processor, a memory in communication with the processor, and the memory being configured to store instructions that, when executed by the processor, cause the terminal device to perform the following operations:

[0192] receiving first configuration information, and receiving control information used for scheduling a first physical channel; wherein the first configuration information is used by the terminal device to determine a first bandwidth part (BWP) and a first sub-BWP; a frequency domain size of the first BWP is less than or equal to a frequency domain size of a carrier; a frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within a frequency domain range of the first BWP;

[0193] determining, according to a type or a format of the control information, that a scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0194] In some embodiments, the instructions further cause the terminal device to perform the following operation: in a case where the scheduling range of the first physical channel is the first sub-BWP, determining, based on the control information, a frequency domain resource of the first physical channel from a plurality of frequency domain resources in the first sub-BWP.

[0195] In some embodiments, the instructions further cause the terminal device to perform the following operation: receiving second configuration information; wherein the second configuration information is used by the terminal device to determine a plurality of frequency domain resources.

[0196] In some embodiments, the instructions further cause the terminal device to perform the following operation: in a case where the control information includes downlink control information (DCI), determining that the scheduling range of the first physical channel is the first BWP; and / or,

[0197] In a case where the control information comprises the sequence-based control information, it is determined that the scheduling range of the first physical channel is the first sub-BWP.

[0198] In some embodiments, the instructions further cause the terminal device to perform: detecting a sequence according to the sequence-based control information, and determining the frequency domain resource of the first physical channel in the first sub-BWP according to the sequence.

[0199] In some embodiments, the instructions further cause the terminal device to perform: receiving third configuration information; wherein the third configuration information is used to indicate a mapping relationship between the sequence and the frequency domain resource in the first sub-BWP.

[0200] In some embodiments, the instructions further cause the terminal device to perform: in a case where the control information comprises DCI of the first format, determining that the scheduling range of the first physical channel is the first BWP; and / or,

[0201] In a case where the control information comprises DCI of the second format, it is determined that the scheduling range of the first physical channel is the first sub-BWP.

[0202] In some embodiments, the instructions further cause the terminal device to perform: receiving fourth configuration information; wherein the fourth configuration information is used to indicate that the DCI format corresponding to the first sub-BWP comprises the second format.

[0203] In some embodiments, the first configuration information is further used to indicate that the DCI format corresponding to the first BWP comprises the first format.

[0204] In some embodiments, the first configuration information comprises first frequency band information, and the first frequency band information is used to indicate the frequency domain size of the first sub-BWP.

[0205] In some embodiments, the frequency domain size of the first sub-BWP is indicated by the number of RBs in the first sub-BWP.

[0206] In some embodiments, the first frequency band information comprises a first code; the first code is determined based on the number of RBs in the first sub-BWP and the frequency domain position of the first sub-BWP.

[0207] In some embodiments, the starting point of the first sub-BWP is the same as the starting point of the first BWP.

[0208] In some embodiments, the center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

[0209] In some embodiments, the first physical channel comprises at least one of a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and a physical uplink control channel (PUCCH).

[0210] The embodiment of the application provides a network device, comprising: a processor, a memory in communication with the processor, the memory being configured to store instructions, when the instructions are executed by the processor, the instructions cause the network device to perform:

[0211] sending first configuration information, and sending control information used for scheduling the first physical channel; wherein the first configuration information is used for the terminal device to determine the first BWP and the first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located in the frequency domain range of the first BWP; the format or type of the control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

[0212] In some embodiments, in the case that the scheduling range of the first physical channel is the first sub-BWP, the control information is also used for the terminal device to determine the frequency domain resource of the first physical channel in the plurality of frequency domain resources in the first sub-BWP.

[0213] In some embodiments, the instructions further cause the network device to perform: sending second configuration information; wherein the second configuration information is used for the terminal device to determine the plurality of frequency domain resources.

[0214] In some embodiments, the control information comprises DCI or sequence-based control information; the DCI is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP; the sequence-based control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

[0215] In some embodiments, the sequence-based control information is used for the terminal device to detect a sequence, and the sequence is used for determining the frequency domain resource of the first physical channel in the first sub-BWP.

[0216] In some embodiments, the instructions further cause the network device to perform: sending third configuration information; wherein the third configuration information is used for indicating a mapping relationship between the sequence and the frequency domain resource in the first sub-BWP.

[0217] In some embodiments, the control information comprises DCI of a first format or DCI of a second format; the DCI of the first format is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP; the DCI of the second format is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

[0218] In some embodiments, the instructions further cause the network device to perform: sending fourth configuration information; wherein the fourth configuration information is used for indicating that the DCI format corresponding to the first sub-BWP comprises the second format.

[0219] In some embodiments, the first configuration information further indicates that the DCI format corresponding to the first BWP comprises a first format.

[0220] In some embodiments, the first configuration information comprises first frequency band information, the first frequency band information being used to indicate a frequency domain size of the first sub-BWP.

[0221] In some embodiments, the frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

[0222] In some embodiments, the first frequency band information comprises a first code; the first code is determined based on the number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

[0223] In some embodiments, a starting point of the first sub-BWP is the same as a starting point of the first BWP.

[0224] In some embodiments, a center frequency of the first sub-BWP is the same as a center frequency of the first BWP.

[0225] In some embodiments, the first physical channel comprises at least one of a PDSCH, a PUSCH and a PUCCH.

[0226] FIG. 14 is a schematic structural diagram of a chip 1400 according to an embodiment of the present application. The chip 1400 comprises a processor 1410, which can invoke and run a computer program from a memory to implement the method in the embodiments of the present application. In a possible implementation manner, the chip 1400 can further comprise a memory 1420. The processor 1410 can invoke and run a computer program from the memory 1420 to implement the method performed by each device in the embodiments of the present application. The memory 1420 can be a separate device independent of the processor 1410, or can be integrated in the processor 1410. In a possible implementation manner, the chip 1400 can further comprise an input interface 1430. The processor 1410 can control the input interface 1430 to communicate with other devices or chips, and specifically, can acquire information or data sent by other devices or chips. In a possible implementation manner, the chip 1400 can further comprise an output interface 1440. The processor 1410 can control the output interface 1440 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips. In a possible implementation manner, the chip can be applied to each device in the embodiments of the present application, and the chip can implement the corresponding processes realized by each device in each method of the embodiments of the present application. For the sake of brevity, details are not described herein. It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0227] The processor mentioned above can be a general processor, a digital signal processor, a ready programmable gate array, a special integrated circuit or other programmable logic device, a transistor logic device, a discrete hardware component, etc. The general processor mentioned above can be a microprocessor or any conventional processor, etc. The memory mentioned above can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0228] It should be understood that the memory described above is an example but not a limiting description, for example, the memory in the embodiments of the present application can also be a static random access memory, a dynamic random access memory, etc.

[0229] FIG. 15 is a schematic block diagram of a communication system 1500 according to an embodiment of the present application. The communication system 1500 includes a terminal device 1510, a network device 1520. In the above embodiments, all or part of the processes can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the processes can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed by a computer, all or part of the processes produce the flows or functions according to the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available medium can be a magnetic medium (such as a hard disk), or a semiconductor medium (such as a solid state disk), etc.

[0230] It should be understood that in various embodiments of the present application, the size of the sequence number of the processes described above does not mean the order of execution, the execution order of the processes should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0231] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0232] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A scheduling method, comprising: receiving, by a terminal device, first configuration information; wherein the first configuration information is used by the terminal device to determine a first bandwidth part (BWP) and a first sub-BWP; a frequency domain size of the first BWP is less than or equal to a frequency domain size of a carrier; a frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within a frequency domain range of the first BWP; receiving, by the terminal device, control information used for scheduling a first physical channel, and determining, according to a type or a format of the control information, a scheduling range of the first physical channel as the first BWP or the first sub-BWP.

2. The method of claim 1, wherein, The method further comprises: in a case where the scheduling range of the first physical channel is the first sub-BWP, determining, by the terminal device based on the control information, a frequency domain resource of the first physical channel in a plurality of frequency domain resources in the first sub-BWP.

3. The method of claim 2, wherein, The method further comprises: receiving, by the terminal device, second configuration information; wherein the second configuration information is used by the terminal device to determine the plurality of frequency domain resources.

4. The method of any one of claims 1-3, wherein, The determining, according to the type or the format of the control information, the scheduling range of the first physical channel as the first BWP or the first sub-BWP comprises: in a case where the control information comprises downlink control information (DCI), determining the scheduling range of the first physical channel as the first BWP; and / or, in a case where the control information comprises sequence-based control information, determining the scheduling range of the first physical channel as the first sub-BWP.

5. The method of claim 4, wherein, The method further comprises: detecting, by the terminal device, a sequence according to the sequence-based control information, and determining the frequency domain resource of the first physical channel in the first sub-BWP according to the sequence.

6. The method of claim 5, wherein, The method further comprises: receiving, by the terminal device, third configuration information; wherein the third configuration information is used to indicate a mapping relationship between the sequence and a frequency domain resource in the first sub-BWP.

7. The method of any one of claims 1-3, wherein, The determining, according to the type or the format of the control information, the scheduling range of the first physical channel as the first BWP or the first sub-BWP comprises: in a case where the control information comprises DCI of a first format, determining the scheduling range of the first physical channel as the first BWP; and / or, in a case where the control information comprises DCI of a second format, determining the scheduling range of the first physical channel as the first sub-BWP.

8. The method of claim 7, wherein, The method further comprises: receiving, by the terminal device, fourth configuration information; wherein the fourth configuration information is used to indicate that a DCI format corresponding to the first sub-BWP comprises the second format.

9. The method of claim 7 or 8, wherein, The first configuration information is further used to indicate that a DCI format corresponding to the first BWP comprises the first format.

10. The method of any one of claims 1-9, wherein, The first configuration information comprises first frequency band information used to indicate the frequency domain size of the first sub-BWP.

11. The method of claim 10, wherein, The frequency domain size of the first sub-BWP is indicated by a number of resource blocks (RBs) in the first sub-BWP.

12. The method of claim 10 or 11, wherein, The first frequency band information includes a first code; the first code is determined based on a number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

13. The method of any one of claims 1-12, wherein, The starting point of the first sub-BWP is the same as the starting point of the first BWP.

14. The method of any one of claims 1-12, wherein, The center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

15. The method of any one of claims 1-14, wherein, The first physical channel includes at least one of a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and a physical downlink control channel (PUCCH).

16. A scheduling method, comprising: A network device sends first configuration information; wherein the first configuration information is used by a terminal device to determine a first BWP and a first sub-BWP; the frequency domain size of the first BWP is less than or equal to the frequency domain size of the carrier; the frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within the frequency domain range of the first BWP; The network device sends control information for scheduling a first physical channel; wherein the format or type of the control information is used by the terminal device to determine that the scheduling range of the first physical channel is the first BWP or the first sub-BWP.

17. The method of claim 16, wherein, In the case where the scheduling range of the first physical channel is the first sub-BWP, the control information is also used by the terminal device to determine the frequency domain resource of the first physical channel in a plurality of frequency domain resources in the first sub-BWP.

18. The method of claim 17, wherein, The method further comprises: The network device sends second configuration information; wherein the second configuration information is used by the terminal device to determine the plurality of frequency domain resources.

19. The method of any one of claims 16-18, wherein, The control information includes DCI or sequence-based control information; The DCI is used by the terminal device to determine that the scheduling range of the first physical channel is the first BWP; The sequence-based control information is used by the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

20. The method of claim 19, wherein, The sequence-based control information is used by the terminal device to detect a sequence, which is used to determine the frequency domain resource of the first physical channel in the first sub-BWP.

21. The method of claim 20, wherein, The method further comprises: The network device sends third configuration information; wherein the third configuration information is used to indicate the mapping relationship between the sequence and the frequency domain resource in the first sub-BWP.

22. The method of any one of claims 16-18, wherein, The control information includes DCI of a first format or DCI of a second format; the DCI of the first format is used by the terminal device to determine that the scheduling range of the first physical channel is the first BWP; the DCI of the second format is used by the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

23. The method of claim 22, wherein, The method further comprises: The network device sends fourth configuration information; wherein the fourth configuration information is used to indicate that the DCI format corresponding to the first sub-BWP includes the second format.

24. The method of claim 22 or 23, wherein, The first configuration information is also used to indicate that the DCI format corresponding to the first BWP includes the first format.

25. The method of any one of claims 16-24, wherein, The first configuration information includes first frequency band information, which is used to indicate the frequency domain size of the first sub-BWP.

26. The method of claim 25, wherein, A frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

27. The method of claim 25 or 26, wherein, The first frequency band information includes a first code; the first code is determined based on the number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

28. The method of any one of claims 16-27, wherein, A starting point of the first sub-BWP is the same as a starting point of the first BWP.

29. The method of any one of claims 16-27, wherein, A center frequency of the first sub-BWP is the same as a center frequency of the first BWP.

30. The method of any one of claims 16-29, wherein, The first physical channel includes at least one of a PDSCH, a PUSCH, and a PUCCH.

31. A terminal device, comprising: A first communication unit configured to receive first configuration information and receive control information for scheduling a first physical channel; wherein the first configuration information is used by the terminal device to determine a first BWP and a first sub-BWP; a frequency domain size of the first BWP is less than or equal to a frequency domain size of a carrier; a frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within a frequency domain range of the first BWP; A first processing unit configured to determine, according to a type or a format of the control information, that a scheduling range of the first physical channel is the first BWP or the first sub-BWP.

32. The terminal device of claim 31, wherein, The first processing unit is configured to, in a case where the scheduling range of the first physical channel is the first sub-BWP, determine, based on the control information, a frequency domain resource of the first physical channel from a plurality of frequency domain resources in the first sub-BWP.

33. The terminal device of claim 32, wherein, The first communication unit is configured to receive second configuration information; wherein the second configuration information is used by the terminal device to determine the plurality of frequency domain resources.

34. The terminal device of any one of claims 31-33, wherein, The first processing unit is configured to: In a case where the control information includes DCI, determine that the scheduling range of the first physical channel is the first BWP; and / or, In a case where the control information includes sequence-based control information, determine that the scheduling range of the first physical channel is the first sub-BWP.

35. The terminal device of claim 34, wherein, The first processing unit is configured to detect a sequence from the sequence-based control information, and determine the frequency domain resource of the first physical channel in the first sub-BWP according to the sequence.

36. The terminal device of claim 35, wherein, The first communication unit is configured to receive third configuration information; wherein the third configuration information is used to indicate a mapping relationship between the sequence and a frequency domain resource in the first sub-BWP.

37. The terminal device of any one of claims 31-33, wherein, The first processing unit is configured to, in a case where the control information includes DCI of a first format, determine that the scheduling range of the first physical channel is the first BWP; and / or, In a case where the control information includes DCI of a second format, determine that the scheduling range of the first physical channel is the first sub-BWP.

38. The terminal device of claim 37, wherein, The first communication unit is configured to receive fourth configuration information; wherein the fourth configuration information is used to indicate that a DCI format corresponding to the first sub-BWP includes the second format.

39. The terminal device of claim 37 or 38, wherein, The first configuration information is further used to indicate that a DCI format corresponding to the first BWP includes the first format.

40. The terminal device of any one of claims 31-39, wherein, The first configuration information includes first frequency band information, and the first frequency band information is used to indicate a frequency domain size of the first sub-BWP.

41. The terminal device of claim 40, wherein, The frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

42. The terminal device of claim 40 or 41, wherein, The first frequency band information includes a first code; and the first code is determined based on the number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

43. The terminal device of any one of claims 31-42, wherein, The starting point of the first sub-BWP is the same as the starting point of the first BWP.

44. The terminal device of any one of claims 31-42, wherein, The center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

45. The terminal device of any one of claims 31-44, wherein, The first physical channel includes at least one of a PDSCH, a PUSCH, and a PUCCH.

46. A network device, comprising: a second communication unit configured to transmit first configuration information and transmit control information used to schedule a first physical channel; wherein the first configuration information is used for a terminal device to determine a first BWP and a first sub-BWP; a frequency domain size of the first BWP is less than or equal to a frequency domain size of a carrier; a frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located within a frequency domain range of the first BWP; and a format or type of the control information is used for the terminal device to determine that a scheduling range of the first physical channel is the first BWP or the first sub-BWP.

47. The network device of claim 46, wherein, In a case where the scheduling range of the first physical channel is the first sub-BWP, the control information is further used for the terminal device to determine a frequency domain resource of the first physical channel in a plurality of frequency domain resources in the first sub-BWP.

48. The network device of claim 47, wherein, The second communication unit is configured to transmit second configuration information; wherein the second configuration information is used for the terminal device to determine the plurality of frequency domain resources.

49. The network device of any of claims 46-48, wherein, The control information includes DCI or sequence-based control information; The DCI is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP; The sequence-based control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

50. The network device of claim 49, wherein, The sequence-based control information is used for the terminal device to detect a sequence, and the sequence is used to determine the frequency domain resource of the first physical channel in the first sub-BWP.

51. The network device of claim 50, wherein, The second communication unit is configured to transmit third configuration information; wherein the third configuration information is used to indicate a mapping relationship between the sequence and a frequency domain resource in the first sub-BWP.

52. The network device of any of claims 46-48, wherein, The control information includes DCI of a first format or DCI of a second format; the DCI of the first format is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP; and the DCI of the second format is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

53. The network device of claim 52, wherein, The second communication unit is configured to transmit fourth configuration information; wherein the fourth configuration information is used to indicate that a DCI format corresponding to the first sub-BWP includes the second format.

54. The network device of claim 52 or 53, wherein, The first configuration information is further used for indicating that the DCI format corresponding to the first BWP comprises the first format.

55. The network device of any of claims 46-54, wherein, The first configuration information comprises first frequency band information, and the first frequency band information is used for indicating a frequency domain size of the first sub-BWP.

56. The network device of claim 55, wherein, The frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

57. The network device of claim 55 or 56, wherein, The first frequency band information comprises a first code, and the first code is determined based on the number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

58. The network device of any of claims 46-57, wherein, The starting point of the first sub-BWP is the same as the starting point of the first BWP.

59. The network device of any of claims 46-57, wherein, The center frequency of the first sub-BWP is the same as the center frequency of the first BWP.

60. The network device of any of claims 46-59, wherein, The first physical channel comprises at least one of a PDSCH, a PUSCH and a PUCCH.

61. A terminal device comprising: A processor, a memory in communication with the processor, the memory being used for storing instructions, when the instructions are executed by the processor, the instructions cause the terminal device to perform: receiving first configuration information, and; wherein the first configuration information is used for the terminal device to determine a first BWP and a first sub-BWP; a frequency domain size of the first BWP is less than or equal to a frequency domain size of a carrier; a frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located in a frequency domain range of the first BWP; receiving control information used for scheduling a first physical channel, and determining, according to a type or a format of the control information, a scheduling range of the first physical channel as the first BWP or the first sub-BWP.

62. The terminal device of claim 61, wherein, The instructions further cause the terminal device to perform: in a case where the scheduling range of the first physical channel is the first sub-BWP, determining, based on the control information, a frequency domain resource of the first physical channel in a plurality of frequency domain resources in the first sub-BWP.

63. The terminal device of claim 62, wherein, The instructions further cause the terminal device to perform: receiving second configuration information; wherein the second configuration information is used for the terminal device to determine the plurality of frequency domain resources.

64. The terminal device of any one of claims 61-63, wherein, The instructions further cause the terminal device to perform: in a case where the control information comprises DCI, determining that the scheduling range of the first physical channel is the first BWP; and / or, in a case where the control information comprises sequence-based control information, determining that the scheduling range of the first physical channel is the first sub-BWP.

65. The terminal device of claim 64, wherein, The instructions further cause the terminal device to perform: detecting a sequence according to the sequence-based control information, and determining the frequency domain resource of the first physical channel in the first sub-BWP according to the sequence.

66. The terminal device of claim 65, wherein, The instructions further cause the terminal device to perform: receiving third configuration information; wherein the third configuration information is used for indicating a mapping relationship between the sequence and a frequency domain resource in the first sub-BWP.

67. The terminal device of any one of claims 61-63, wherein, The instructions further cause the terminal device to perform: in a case where the control information comprises DCI of a first format, determining that the scheduling range of the first physical channel is the first BWP; and / or, In a case where the control information comprises the DCI in the second format, it is determined that a scheduling range of the first physical channel is the first sub-BWP.

68. The terminal device of claim 67, wherein, The instructions further cause the terminal device to: receive fourth configuration information; and wherein the fourth configuration information is used to indicate that a DCI format corresponding to the first sub-BWP comprises the second format.

69. The terminal device of claim 67 or 68, wherein, The first configuration information is further used to indicate that a DCI format corresponding to the first BWP comprises the first format.

70. The terminal device of any one of claims 61-69, wherein, The first configuration information comprises first frequency band information, and the first frequency band information is used to indicate a frequency domain size of the first sub-BWP.

71. The terminal device of claim 70, wherein, The frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

72. The terminal device of claim 70 or 71, wherein, The first frequency band information comprises a first code, and the first code is determined based on the number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

73. The terminal device of any one of claims 61-72, wherein, A starting point of the first sub-BWP is the same as a starting point of the first BWP.

74. The terminal device of any one of claims 61-72, wherein, A center frequency of the first sub-BWP is the same as a center frequency of the first BWP.

75. The terminal device of any one of claims 61-74, wherein, The first physical channel comprises at least one of a PDSCH, a PUSCH, and a PUCCH.

76. A network device comprising: A processor, a memory in communication with the processor, the memory being used to store instructions, when the instructions are executed by the processor, the instructions cause the network device to perform: sending first configuration information and sending control information used to schedule a first physical channel; wherein the first configuration information is used for a terminal device to determine a first BWP and a first sub-BWP; a frequency domain size of the first BWP is less than or equal to a frequency domain size of a carrier; a frequency domain size of the first sub-BWP is less than or equal to the frequency domain size of the first BWP, and the first sub-BWP is located in a frequency domain range of the first BWP; and a format or type of the control information is used for the terminal device to determine that a scheduling range of the first physical channel is the first BWP or the first sub-BWP.

77. The network device of claim 76, wherein, In a case where the scheduling range of the first physical channel is the first sub-BWP, the control information is further used for the terminal device to determine a frequency domain resource of the first physical channel in a plurality of frequency domain resources in the first sub-BWP.

78. The network device of claim 77, wherein, The instructions further cause the network device to: send second configuration information; and wherein the second configuration information is used for the terminal device to determine the plurality of frequency domain resources.

79. The network device of any of claims 76-78, wherein, The control information comprises DCI or sequence-based control information. The DCI is used for the terminal device to determine that the scheduling range of the first physical channel is the first BWP. The sequence-based control information is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

80. The network device of claim 79, wherein, The sequence-based control information is used for the terminal device to detect a sequence, and the sequence is used to determine the frequency domain resource of the first physical channel in the first sub-BWP.

81. The network device of claim 80, wherein, The instructions further cause the network device to: send third configuration information; and wherein the third configuration information is used to indicate a mapping relationship between the sequence and a frequency domain resource in the first sub-BWP.

82. The network device of any of claims 76-78, wherein, The control information includes DCI of a first format or DCI of a second format; the DCI of the first format is used for the terminal device to determine that a scheduling range of the first physical channel is the first BWP; and the DCI of the second format is used for the terminal device to determine that the scheduling range of the first physical channel is the first sub-BWP.

83. The network device of claim 82, wherein, The instructions further cause the network device to perform: sending fourth configuration information; wherein the fourth configuration information is used to indicate that a DCI format corresponding to the first sub-BWP includes the second format.

84. The network device of claim 82 or 83, wherein, The first configuration information is further used to indicate that a DCI format corresponding to the first BWP includes the first format.

85. The network device of any of claims 76-84, wherein, The first configuration information includes first frequency band information, and the first frequency band information is used to indicate a frequency domain size of the first sub-BWP.

86. The network device of claim 85, wherein, The frequency domain size of the first sub-BWP is indicated by a number of RBs in the first sub-BWP.

87. The network device of claim 85 or 86, wherein, The first frequency band information includes a first code; and the first code is determined based on the number of RBs in the first sub-BWP and a frequency domain position of the first sub-BWP.

88. The network device of any of claims 76-87, wherein, A starting point of the first sub-BWP is the same as a starting point of the first BWP.

89. The network device of any of claims 76-87, wherein, A center frequency of the first sub-BWP is the same as a center frequency of the first BWP.

90. The network device of any of claims 76-89, wherein, The first physical channel includes at least one of a PDSCH, a PUSCH, and a PUCCH.

91. A chip comprising: A processor is configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the method of any one of claims 1-15 or 16-30. 92.A computer readable storage medium storing a computer program which, when executed by a device, causes the device to perform the method of any one of claims 1-15 or 16-30. 93.A computer program product comprising computer program instructions which cause a computer to perform the method of any one of claims 1-15 or 16-30. 94.A computer program which causes a computer to perform the method of any one of claims 1-15 or 16-30. 95.A communication system comprising: a terminal device configured to perform the method of any one of claims 1-15; and a network device configured to perform the method of any one of claims 16-30.

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