Method for determining transmission frequency band of data, terminal equipment and network equipment

Abstract

The invention discloses a method for determining a transmission frequency band of data, terminal equipment and network equipment. The method comprises the following steps: the terminal equipment receives first control information used for scheduling the terminal equipment to carry out data transmission; determining at least one transmission band corresponding to the transmission information according to the transmission information of the terminal device and a first mapping relationship, the first mapping relationship comprising a corresponding relationship between a plurality of pieces of transmission information and a plurality of transmission bands, the transmission information comprises at least one of the following information: an attribute of the first control information, resource type information for data transmission, and service information of the terminal device; the terminal device determines a target transmission band in the at least one transmission band; and the terminal device performs data transmission on the target transmission frequency band according to the first control information. Therefore, only at least one transmission frequency band corresponding to each piece of transmission information needs to be indicated, and all transmission frequency bands in the system bandwidth do not need to be indicated, so that the signaling overhead of the downlink control information is reduced.

Description

[0001] This application is a divisional application of the invention patent application with application number CN201780088671.X filed on July 24, 2017 and invention name “Method, terminal device and network device for transmitting data”. Technical Field

[0002] The present application relates to the field of wireless communications, and in particular to a method for determining a data transmission frequency band, a terminal device, and a network device. Background Art

[0003] In the Long Term Evolution (LTE) system, the frequency domain resources for transmitting data are allocated in the entire system bandwidth. In the 5G New Radio (NR) system, since the system bandwidth is greatly improved, the transmission bandwidth of the terminal device may only occupy a part of the system bandwidth. For example, the network divides the system bandwidth into multiple frequency bands, or bandwidth segments (Bandwidth Part, BWP), and indicates the BWP used for its data transmission to the terminal device through control signaling. However, when the system bandwidth includes a large number of BWPs, the control signaling overhead for indicating a certain BWP will be very large. Therefore, how to reduce the control signaling overhead while indicating the BWP becomes an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a method, terminal device and network device for transmitting data, which can effectively indicate the transmission frequency band used for data transmission without causing a large signaling overhead.

[0005] In a first aspect, a method for transmitting data is provided, comprising: a terminal device receives first control information sent by a network device, the first control information being used to schedule the terminal device to perform data transmission; the terminal device determines at least one transmission frequency band corresponding to the attribute of the first control information according to the attribute of the first control information and a first mapping relationship, wherein in the first mapping relationship, the attribute of the first control information corresponds to one or more transmission frequency bands; the terminal device determines a target transmission frequency band in the at least one transmission frequency band; the terminal device performs the data transmission with the network device on the target transmission frequency band according to the first control information.

[0006] Therefore, based on the method of the embodiment of the present application, the terminal device can determine at least one transmission frequency band corresponding to the transmission information based on its transmission information, and determine the transmission frequency band used for data transmission in the at least one transmission frequency band. Since the network device only needs to indicate at least one transmission frequency band corresponding to each transmission information, and there is no need to indicate all transmission frequency bands in the system bandwidth, the signaling overhead of the downlink control information can be reduced.

[0007] In a possible implementation, according to the method of claim 1, it is characterized in that the first mapping relationship includes a correspondence between multiple transmission information and multiple transmission frequency bands.

[0008] In a possible implementation manner, the transmission frequency band is a bandwidth configuration or a bandwidth segment (BWP) configuration.

[0009] In a possible implementation manner, the first mapping relationship is pre-agreed upon between the terminal device and the network device, or is determined and configured to the terminal device by the network device.

[0010] In a possible implementation, the first control information includes frequency band information of the target transmission band, and the first mapping relationship also includes a correspondence between multiple transmission bands and multiple frequency band information, wherein the terminal device determines the target transmission band in the at least one transmission band, including: the terminal device determines the target transmission band as the transmission band in the at least one transmission band corresponding to the frequency band information based on the frequency band information of the target transmission band and the first mapping relationship.

[0011] In a possible implementation, before the terminal device determines at least one transmission frequency band corresponding to the attributes of the first control information based on the attributes of the first control information and the first mapping relationship, the method also includes: the terminal device receives second control information sent by the network device, and the second control information includes the first mapping relationship.

[0012] In a possible implementation manner, the first control information includes downlink control information DCI or a medium access control element MAC CE.

[0013] In a possible implementation manner, the second control information packet is radio resource control RRC signaling or system information.

[0014] In a possible implementation manner, the first control information is DCI, and the attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0015] In one possible implementation, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0016] In a possible implementation manner, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0017] In a possible implementation, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0018] In a second aspect, a method for transmitting data is provided, comprising: a network device determines at least one transmission frequency band corresponding to the attribute of first control information based on the attribute of the first control information and a first mapping relationship, wherein in the first mapping relationship, the attribute of the first control information corresponds to one or more transmission frequency bands; the network device determines a target transmission frequency band in the at least one transmission frequency band; the network device sends the first control information to a terminal device; and the network device performs the data transmission with the terminal device on the target transmission frequency band.

[0019] Therefore, based on the method of the embodiment of the present application, the network device can determine at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device, and select a transmission frequency band for data transmission for the terminal device from the at least one transmission frequency band. Since the network device only needs to indicate at least one transmission frequency band corresponding to each transmission information, and there is no need to indicate all transmission frequency bands in the system bandwidth, the signaling overhead of the downlink control information can be reduced.

[0020] In a possible implementation manner, the first mapping relationship includes a correspondence between multiple transmission information and multiple transmission frequency bands.

[0021] In a possible implementation manner, the transmission frequency band is a bandwidth configuration or a bandwidth segment (BWP) configuration.

[0022] In a possible implementation manner, the first mapping relationship is pre-agreed upon between the terminal device and the network device, or is determined and configured to the terminal device by the network device.

[0023] In a possible implementation, the first control information includes frequency band information of the target transmission frequency band, and the first mapping relationship also includes a correspondence between multiple transmission frequency bands and multiple frequency band information, wherein, before the network device sends the first control information to the terminal device, the method also includes: the network device determines the frequency band information corresponding to the target transmission frequency band from at least one frequency band information corresponding to the at least one transmission frequency band according to the target transmission frequency band and the first mapping relationship.

[0024] In a possible implementation, before the network device performs the data transmission with the terminal device on the target transmission frequency band, the method further includes: the network device sends second control information to the terminal device, and the second control information includes the first mapping relationship.

[0025] In a possible implementation manner, the first control information includes downlink control information DCI or a medium access control element MAC CE.

[0026] In a possible implementation manner, the second control information packet is radio resource control RRC signaling or system information.

[0027] In a possible implementation manner, the first control information is DCI, and the attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0028] In one possible implementation, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0029] In a possible implementation manner, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0030] In a possible implementation, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0031] In a third aspect, a terminal device is provided, which can perform the operations of the terminal device in the first aspect or any optional implementation of the first aspect. Specifically, the terminal device may include a module unit for performing the operations of the terminal device in the first aspect or any possible implementation of the first aspect.

[0032] In a fourth aspect, a network device is provided, which can perform the operations of the network device in the second aspect or any optional implementation of the second aspect. Specifically, the network device may include a module unit for performing the operations of the network device in the second aspect or any possible implementation of the second aspect.

[0033] In a fifth aspect, a terminal device is provided, the terminal device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the terminal device to execute the method in the first aspect or any possible implementation of the first aspect, or the execution causes the terminal device to implement the terminal device provided by the third aspect.

[0034] In a sixth aspect, a network device is provided, the network device comprising: a processor, a transceiver and a memory. The processor, the transceiver and the memory communicate with each other through an internal connection path. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the network device to execute the method in the second aspect or any possible implementation of the second aspect, or the execution causes the network device to implement the network device provided in the fourth aspect.

[0035] In a seventh aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a program, wherein the program enables a terminal device to execute the method for transmitting data in the above-mentioned first aspect and any one of its various implementation methods.

[0036] In an eighth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a program, wherein the program enables a network device to execute the method for transmitting data in the above-mentioned second aspect and any one of its various implementation methods.

[0037] In the ninth aspect, a system chip is provided, which includes an input interface, an output interface, a processor and a memory, wherein the processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the method in the aforementioned first aspect or any possible implementation of the first aspect.

[0038] In the tenth aspect, a system chip is provided, which includes an input interface, an output interface, a processor and a memory. The processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the method in the aforementioned second aspect or any possible implementation of the second aspect.

[0039] In an eleventh aspect, a computer program product comprising instructions is provided, and when the computer program product is run on a computer, the computer is caused to execute the method in the above-mentioned first aspect or any possible implementation manner of the first aspect.

[0040] In a twelfth aspect, a computer program product comprising instructions is provided. When the computer program product is run on a computer, the computer is caused to execute the method in the above-mentioned second aspect or any possible implementation manner of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 It is a schematic architecture diagram of an application scenario of an embodiment of the present application.

[0043] Figure 2 It is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.

[0044] Figure 3 It is a schematic flowchart of a method for transmitting data according to another embodiment of the present application.

[0045] Figure 4 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0046] Figure 5 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0047] Figure 6 It is a schematic structural diagram of a terminal device according to an embodiment of the present application.

[0048] Figure 7 It is a schematic structural diagram of a network device according to an embodiment of the present application.

[0049] Figure 8 It is a schematic structural diagram of the system chip of an embodiment of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0051] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), and future 5G communication systems, etc.

[0052] The present application describes various embodiments in conjunction with terminal devices. Terminal devices may also refer to user equipment (UE), access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication devices, user agents, or user devices. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolving land public mobile communication network (PLMN) network, etc.

[0053] The present application describes various embodiments in conjunction with a network device. The network device may be a device for communicating with a terminal device, for example, a base station (Base Transceiver Station, BTS) in a GSM system or CDMA, a base station (NodeB, NB) in a WCDMA system, or an evolved base station (EvolutionalNodeB, eNB or eNodeB) in an LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a network side device in a future evolved PLMN network, etc.

[0054] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application. Figure 1 The communication system in the embodiment may include a network device 10 and a terminal device 20. The network device 10 is used to provide communication services for the terminal device 20 and access the core network. The terminal device 20 can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 10, thereby communicating with the network. Figure 1 The arrows shown in may represent uplink / downlink transmissions performed via a cellular link between the terminal device 20 and the network device 10 .

[0055] The network in the embodiment of the present application may refer to a public land mobile network (PLMN) or a device to device (D2D) network or a machine to machine / man (M2M) network or other networks. Figure 1 This is just a simplified diagram for example. The network may also include other terminal devices. Figure 1 Not drawn in.

[0056] Figure 2 It is a schematic flowchart of a method for transmitting data according to an embodiment of the present application. Figure 2 The method shown can be executed by a terminal device, which can be, for example, Figure 1 The terminal device 20 shown in FIG. Figure 2 As shown, the method for transmitting data includes:

[0057] In 210, the terminal device receives first control information sent by the network device.

[0058] The first control information is used to schedule the terminal device to transmit data.

[0059] Optionally, the first control information includes downlink control information (Download Control Information, DCI) or a media access control (Media Access Control, MAC) control element (Control Element, CE).

[0060] In 220, the terminal device determines at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device and the first mapping relationship.

[0061] The first mapping relationship includes a correspondence between a plurality of transmission information and a plurality of transmission frequency bands.

[0062] Among them, different transmission bands may have different bandwidth sizes and / or occupy different frequency domain positions, and the basic parameter sets used for data transmission on different frequency bands, such as subcarrier spacing, may also be different. The transmission band may also be referred to as a bandwidth configuration or a bandwidth segment (Band Width Part, BWP) configuration. The system bandwidth may include multiple transmission bands, i.e., multiple BWPs, and each BWP may have a corresponding BWP number for identifying different BWPs.

[0063] The transmission information includes at least one of the following: attributes of the first control information, resource type information used for the data transmission, and service information of the terminal device.

[0064] Optionally, the transmission information may be an attribute of the first control information. For example, when the first control information is DCI, the transmission information may be the DCI format (DCI Format) of the DCI, the size (DCI size) of the DCI, or information indicating whether the DCI schedules uplink data or downlink data.

[0065] Optionally, the transmission information may also be resource type information used for the data transmission, such as information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, or a resource scheduling unit.

[0066] That is to say, the resources scheduled by the first control information can be divided according to whether they are public resources or private resources, or according to their continuity, or according to the granularity at which they are scheduled, and based on the different division results, the transmission frequency bands corresponding to different types of resources are determined.

[0067] Among them, the common resources (UE-group-common) are transmission resources commonly used by multiple terminal devices including the terminal device, and the dedicated resources (UE-specific) are transmission resources exclusively used by the terminal device. The network device can provide UE-specific resource indications or UE-group-common resource indications to the terminal device.

[0068] The scheduling unit of the data resource may be a time slot, a subframe, or a symbol, etc. For example, if the resource scheduling is in time slots, the network device may indicate to the terminal device the location of the time slot where the transmission resource for the data transmission is located, and the terminal device transmits data on the fixed time domain symbol of the time slot. This process may also be referred to as slot-based scheduling; if the resource scheduling is in symbols, the network device may indicate to the terminal device not only the location of the time slot where the transmission resource for the data transmission is located, but also which symbols in the time slot the transmission resource is. This process may also be referred to as symbol-based scheduling or non-slot-based scheduling.

[0069] Optionally, the transmission information may also be service information of the terminal device, such as service type information of the terminal device, service quality information of the terminal device, or service quality information of the terminal device.

[0070] Optionally, before 220, that is, before the terminal device determines at least one transmission frequency band corresponding to the transmission information based on the transmission information of the terminal device and the first mapping relationship, the method also includes: the terminal device receives second control information sent by the network device, and the second control information includes the first mapping relationship.

[0071] Specifically, the first mapping relationship between multiple transmission information and multiple transmission frequency bands may be pre-agreed between the terminal device and the network device, such as a protocol provision, or may be configured to the terminal device after being determined by the network device. The network device may adjust the first mapping relationship at any time and send second control information to the terminal device to indicate the mapping relationship. The terminal device determines at least one transmission frequency band corresponding to its transmission information based on the first mapping relationship configured by the network device.

[0072] It should be understood that the first mapping relationship between multiple transmission information and multiple transmission frequency bands can be presented, for example, by means of a table, a formula, an image, etc., and in the corresponding relationship between multiple transmission information and multiple transmission frequency bands, one transmission information can correspond to one or more transmission frequency bands, and one transmission frequency band can also correspond to one or more transmission information. In other words, the terminal device can determine the transmission frequency band corresponding to the transmission information by searching a preset mapping table including the corresponding relationship between multiple transmission information and multiple transmission frequency bands; or the terminal device can also calculate the identification or number of the transmission frequency band corresponding to the transmission information by a preset formula and relevant parameter information of the transmission information. This application does not limit this.

[0073] In 230 , the terminal device determines a target transmission frequency band for the data transmission in the at least one transmission frequency band.

[0074] Specifically, the terminal device selects one or more transmission bands as the target transmission band for the data transmission in at least one transmission band corresponding to the information transmitted by the terminal device. For example, the terminal device may randomly select one transmission band as the target transmission band for the data transmission in the at least one transmission band, or may use all the transmission bands in the at least one transmission band for the data transmission, or may select the corresponding target transmission band in the at least one transmission band based on a preset rule.

[0075] In particular, if a transmission information corresponds to only one transmission frequency band, that is, at least one transmission frequency band corresponding to the transmission information includes only one transmission frequency band, then in 230, the terminal device determines the target transmission frequency band in the at least one transmission frequency band, including: the terminal device determines the transmission frequency band corresponding to the transmission information as the target transmission frequency band.

[0076] Optionally, the first control information includes frequency band information of the target transmission band, and the first mapping relationship also includes a correspondence between multiple transmission bands and multiple frequency band information, wherein, in 230, the terminal device determines the target transmission band in the at least one transmission band, including: the terminal device determines the transmission band corresponding to the frequency band information in the at least one transmission band as the target transmission band based on the frequency band information of the target transmission band and the first mapping relationship.

[0077] Specifically, the first mapping relationship also includes the correspondence between multiple transmission frequency bands and multiple frequency band information. After the terminal device determines at least one transmission frequency band corresponding to the transmission information, it determines the transmission frequency band corresponding to the frequency band information in the at least one transmission frequency band as the target transmission frequency band according to the frequency band information carried in the first control information and the first mapping relationship.

[0078] It should be noted that each transmission frequency band has its own corresponding frequency band information, and the frequency band information corresponding to each transmission frequency band is not unique. If at least one transmission frequency band corresponding to transmission information 1 and at least one transmission frequency band corresponding to transmission information 2 include the same transmission frequency band, then the frequency band information of the same transmission frequency band may be different or the same when corresponding to different transmission information. For example, the transmission information corresponding to the same transmission frequency band in at least one transmission frequency band corresponding to transmission information 1 is 00, and the transmission information corresponding to the same transmission frequency band in at least one transmission frequency band corresponding to transmission information 2 is 01.

[0079] In 240, the terminal device performs the data transmission with the network device on the target transmission frequency band according to the first control information.

[0080] Specifically, after the terminal device determines at least one transmission frequency band corresponding to the transmission information based on the transmission information, it determines the target transmission frequency band for data transmission in the at least one transmission frequency band based on the frequency band information in the first control information, thereby transmitting the data with the network device on the resources scheduled in the target transmission frequency band based on the scheduling of the first control information sent by the network device.

[0081] It should be understood that in the embodiment of the present application, when the terminal device transmits data with the network device on the transmission frequency band, the transmitted data may include business data, signaling data or other types of data. The data transmission includes the terminal device receiving the data sent by the network device or the terminal device sending the data to the network device.

[0082] Therefore, based on the method of the embodiment of the present application, the terminal device can determine at least one transmission frequency band corresponding to the transmission information based on its transmission information, and determine the transmission frequency band used for data transmission in the at least one transmission frequency band. Since the network device only needs to indicate at least one transmission frequency band corresponding to each transmission information, and there is no need to indicate all transmission frequency bands in the system bandwidth, the signaling overhead of the downlink control information can be reduced.

[0083] For example, as shown in Table 1, assuming that the system bandwidth includes 8 BWPs, the first control information is DCI, the transmission information is DCI Format, and the first control information includes preset bits for indicating frequency band information of the transmission frequency band.

[0084] Table 1

[0085]

[0086]

[0087] According to the mapping relationship shown in Table 1, if the format of the DCI received by the terminal device is DCI Format 1, the terminal device can determine that at least one BWP corresponding to DCI Format 1 includes BWP 1 to BWP 4. If the frequency band information carried in the DCI received by the terminal device is 00, the terminal device can determine that the target transmission band for the data transmission is BWP 1; if the frequency band information in the DCI is 01, the terminal device can determine that the target transmission band is BWP 2; if the frequency band information in the DCI is 10, the terminal device can determine that the target transmission band is BWP 3; if the frequency band information in the DCI is 11, the terminal device can determine that the target transmission band is BWP 4.

[0088] If the format of the DCI received by the terminal device is DCI Format 2, the terminal device can determine that at least one BWP corresponding to DCIFormat2 includes BWP 5 and BWP 6. If the frequency band information in the DCI is 0, the terminal device can determine that the target transmission frequency band is BWP 5; if the frequency band information in the DCI is 1, the terminal device can determine that the target transmission frequency band is BWP 6.

[0089] If the format of the DCI received by the terminal device is DCI Format 3, the terminal device may determine that at least one transmission frequency band corresponding to DCIFormat3 includes only BWP 7, and then determine BWP 7 as the target transmission frequency band.

[0090] If the format of the DCI received by the terminal device is DCI Format 4, the terminal device may determine that at least one transmission frequency band corresponding to DCIFormat3 includes only BWP 8, and then determine BWP 8 as the target transmission frequency band.

[0091] It can be seen that if DCI is used directly to indicate the eight transmission bands BWP 1 to BWP 8, then the DCI should include at least 3 bits to indicate different transmission bands. According to the mapping relationship shown in Table 1, only 2 bits are needed at most to indicate the eight transmission bands BWP 1 to BWP 8, reducing the signaling overhead of DCI. For example, if the format of the DCI received by the terminal device is DCI Format 2, then the frequency band information carried in the DCI only occupies 1 bit, such as 0 to indicate BWP 5 and 1 to indicate BWP 6; if the format of the DCI received by the terminal device is DCI Format 3 or DCI Format 4, then the DCI does not need to carry extra bits to indicate BWP, thereby saving DCI overhead.

[0092] It should be understood that for at least one transmission frequency band corresponding to different transmission information, the frequency band information carried in the first control information may also occupy the same number of bits. For example, as shown in Table 2, the first control information is DCI, and the DCI includes two bits to indicate at least one BWP corresponding to each DCI format. If the format of the DCI received by the terminal device is DCIFormat 1, the band information 00 in the DCI is used to indicate BWP 1, the band information 01 in the DCI is used to indicate BWP 2, the band information 10 is used to indicate BWP 3, and the band information 11 in the DCI is used to indicate BWP 4; if the format of the DCI received by the terminal device is DCI Format 2, the band information 00 in the DCI is used to indicate BWP 5, and the band information 01 in the DCI is used to indicate BWP6 (where 10 and 11 can also be used to indicate other information); if the format of the DCI received by the terminal device is DCI Format 3, the band information 00 is used to indicate BWP 7 (where 01, 10 and 11 can also be used to indicate other information); if the format of the DCI received by the terminal device is DCI Format 4, the band information 00 is used to indicate BWP 8 (where 01, 10 and 11 can also be used to indicate other information).

[0093] Table 2

[0094]

[0095]

[0096] It should also be understood that in an embodiment of the present application, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same or at least partially different.

[0097] In other words, at least one transmission frequency band corresponding to each transmission information can be called a frequency band set. In different frequency band sets corresponding to different transmission information, there may be the same transmission frequency band or different transmission frequency bands, but the frequency band information corresponding to the same transmission frequency band in the frequency band sets corresponding to different transmission information may be different. However, for a certain transmission information, the frequency band information of the transmission frequency bands in the frequency band sets corresponding to the transmission information are all different.

[0098] For example, as shown in Table 3, the at least one BWP corresponding to DCI Format 1 includes BWP 1 to BWP 4, the at least one BWP corresponding to DCI Format 2 includes BWP 2, BWP 5 and BWP 6, the at least one BWP corresponding to DCI Format 3 includes BWP 3 and BWP 7, and the at least one BWP corresponding to DCI Format 3 only includes BWP 8.

[0099] It can be seen that the BWPs corresponding to DCI Format 1 and DCI Format 2 both include BWP 2, but in at least one BWP corresponding to DCI Format 1, the frequency band information of BWP 2 is 01, and in at least one BWP corresponding to DCI Format 2, the frequency band information of BWP 2 is 01.

[0100] Moreover, the BWPs corresponding to DCI Format 1 and DCI Format 3 may both include BWP 3, but in at least one BWP corresponding to DCI Format 1, the frequency band information of BWP 3 is 10, and in at least one BWP corresponding to DCI Format 3, the frequency band information of BWP 3 is 00.

[0101] Table 3

[0102]

[0103] For the first mapping relationship represented by Table 3, there can be another form, as shown in Table 4, BWP 1 corresponds to DCI Format 1, BWP 2 can correspond to DCI Format 1 and DCI Format 2, BWP 3 can correspond to DCI Format 1 and DCI Format 3, BWP 4 corresponds to DCI Format 2, BWP 5 corresponds to DCI Format 2, BWP 6 corresponds to DCI Format 2, BWP 7 corresponds to DCI Format 3, and BWP 8 corresponds to DCI Format 4.

[0104] If a BWP corresponds to multiple DCI Formats, the frequency band information corresponding to the BWP in different DCI Formats is different. For example, the frequency band information corresponding to BWP 2 in DCI Format 1 is 01, and the frequency band information corresponding to BWP 2 in DCI Format 2 is 00.

[0105] Table 4

[0106]

[0107]

[0108] The first mapping relationship is described above by taking the transmission information being DCI Format as an example. The following description is made by taking the transmission information being DCI Size, DCI uplink and downlink information, and resource type information as an example in conjunction with Tables 5 to 8.

[0109] As shown in the first mapping relationship in Table 5, assuming that the system bandwidth includes 8 BWPs, the first control information is DCI, the transmission information is DCI Size, and the first control information includes a preset bit, and the value on the bit is used to indicate the band information of the target transmission band for the terminal device to perform data transmission.

[0110] Table 5

[0111]

[0112] According to the mapping relationship shown in Table 5, if the size of the DCI received by the terminal device is DCI Size 1, the terminal device can determine that at least one BWP corresponding to DCI Size 1 includes BWP 1 to BWP 4. If the frequency band information carried in the DCI received by the terminal device is 00, the terminal device can determine that the target transmission band for the data transmission is BWP1; if the frequency band information in the DCI is 01, the terminal device can determine that the target transmission band is BWP 2; if the frequency band information in the DCI is 10, the terminal device can determine that the target transmission band is BWP 3; if the frequency band information in the DCI is 11, the terminal device can determine that the target transmission band is BWP 4.

[0113] If the size of the DCI received by the terminal device is DCI Size 2, the terminal device can determine that at least one BWP corresponding to DCI Size 2 includes BWP 5 and BWP 6. If the frequency band information in the DCI is 0, the terminal device can determine that the target transmission frequency band is BWP 5; if the frequency band information in the DCI is 1, the terminal device can determine that the target transmission frequency band is BWP 6.

[0114] If the size of the DCI received by the terminal device is DCI Size 3, the terminal device may determine that at least one transmission frequency band corresponding to DCI Size 3 includes only BWP 7, and then determine BWP 7 as the target transmission frequency band.

[0115] If the size of the DCI received by the terminal device is DCI Size 4, the terminal device may determine that at least one transmission frequency band corresponding to DCI Size 3 includes only BWP 8, and then determine BWP 8 as the target transmission frequency band.

[0116] It can be seen that if DCI is directly used to indicate the eight transmission bands BWP 1 to BWP 8, then the DCI should include at least 3 bits to indicate different transmission bands. According to the mapping relationship shown in Table 5, only 2 bits are needed at most to indicate the eight transmission bands BWP 1 to BWP 8, which reduces the signaling overhead of DCI. For example, if the size of the DCI received by the terminal device is DCI Size 2, then the frequency band information carried in the DCI only occupies 1 bit, such as 0 to indicate BWP 5 and 1 to indicate BWP 6; if the size of the DCI received by the terminal device is DCI Size 3 or DCI Size 4, then the DCI does not need to carry extra bits to indicate BWP, thereby saving DCI overhead.

[0117] For another example, the first mapping relationship shown in Table 6 assumes that the system bandwidth includes 8 BWPs, the first control information is DCI, the transmission information is uplink and downlink information, the uplink and downlink information indicates whether the DCI schedules uplink data or downlink data, and the first control information includes a preset bit position, and the value on the bit position is used to indicate the band information of the target transmission band for the data transmission of the terminal device.

[0118] Table 6

[0119]

[0120] According to the mapping relationship shown in Table 6, if the DIC schedules downlink data, the terminal device can determine that at least one BWP corresponding to the downlink transmission includes BWP 1 to BWP 4. If the frequency band information carried in the DCI received by the terminal device is 00, the terminal device can determine that the target transmission band for the data transmission is BWP 1; if the frequency band information in the DCI is 01, the terminal device can determine that the target transmission band is BWP 2; if the frequency band information in the DCI is 10, the terminal device can determine that the target transmission band is BWP 3; if the frequency band information in the DCI is 11, the terminal device can determine that the target transmission band is BWP 4.

[0121] If the DCI schedules uplink data, the terminal device can determine that at least one BWP corresponding to the uplink transmission includes BWP 5 to BWP 8. If the frequency band information carried in the DCI received by the terminal device is 00, the terminal device can determine that the target transmission band for the data transmission is BWP 5; if the frequency band information in the DCI is 01, the terminal device can determine that the target transmission band is BWP 6; if the frequency band information in the DCI is 10, the terminal device can determine that the target transmission band is BWP 7; if the frequency band information in the DCI is 11, the terminal device can determine that the target transmission band is BWP 8.

[0122] It can be seen that if DCI is used directly to indicate the eight transmission bands BWP 1 to BWP 8, then the DCI should include at least 3 bits to indicate different transmission bands. According to the mapping relationship shown in Table 6, the network device only needs 2 bits to indicate the eight transmission bands BWP 1 to BWP 8, reducing the signaling overhead of DCI. For example, if DCI schedules downlink transmission, the frequency band information carried in the DCI only occupies 2 bits, such as 00 to indicate BWP 1 and 01 to indicate BWP 2.

[0123] For example, the first mapping relationship shown in Table 7 assumes that the system bandwidth includes 8 BWPs, and the transmission information is information indicating whether the first control information schedules public resources or dedicated resources of the terminal device. The first control information includes a preset bit, and the value on the bit is used to indicate the band information of the target transmission band for the terminal device to perform the data transmission.

[0124] Table 7

[0125]

[0126] According to the mapping relationship shown in Table 7, if the first control information schedules the dedicated resources of the terminal device, the terminal device can determine that at least one BWP corresponding to the dedicated resources includes BWP 1 to BWP 4. If the frequency band information carried in the first control information received by the terminal device is 00, the terminal device can determine that the target transmission frequency band for the data transmission is BWP 1; if the frequency band information in the first control information is 01, the terminal device can determine that the target transmission frequency band is BWP 2; if the frequency band information in the first control information is 10, the terminal device can determine that the target transmission frequency band is BWP 3; if the frequency band information in the first control information is 11, the terminal device can determine that the target transmission frequency band is BWP 4.

[0127] If the first control information schedules a common resource of multiple terminal devices including the terminal device, the terminal device can determine that at least one BWP corresponding to the common resource includes BWP 5 to BWP 8. If the frequency band information carried in the first control information received by the terminal device is 00, the terminal device can determine that the target transmission frequency band for the data transmission is BWP 5; if the frequency band information in the first control information is 01, the terminal device can determine that the target transmission frequency band is BWP 6; if the frequency band information in the first control information is 10, the terminal device can determine that the target transmission frequency band is BWP 7; if the frequency band information in the first control information is 11, the terminal device can determine that the target transmission frequency band is BWP 8.

[0128] It can be seen that if the first control information is directly used to indicate the eight transmission frequency bands BWP 1 to BWP 8 respectively, then the first control information should include at least 3 bits to indicate different transmission frequency bands. According to the mapping relationship shown in Table 7, the network device only needs 2 bits to indicate the eight transmission frequency bands BWP 1 to BWP 8, which reduces the signaling overhead of the first control information. For example, if the first control information schedules a dedicated resource, then the frequency band information carried in the first control information only occupies 2 bits, such as 00 to indicate BWP 1 and 01 to indicate BWP 2.

[0129] For example, the first mapping relationship shown in Table 8 assumes that the system bandwidth includes 8 BWPs, the transmission information is a resource scheduling unit, and the first control information includes a preset bit, and the value on the bit is used to indicate the band information of the target transmission band for the terminal device to perform the data transmission.

[0130] Table 8

[0131]

[0132] According to the mapping relationship shown in Table 8, if the resource scheduling unit is a time slot, that is, the first control information is a time slot-based scheduling of the network device, then the terminal device can determine that the at least one BWP corresponding to the resource scheduling unit is a time slot includes BWP 1 to BWP 4. If the frequency band information carried in the first control information received by the terminal device is 00, then the terminal device can determine that the target transmission frequency band for the data transmission is BWP 1; if the frequency band information in the first control information is 01, then the terminal device can determine that the target transmission frequency band is BWP 2; if the frequency band information in the first control information is 10, then the terminal device can determine that the target transmission frequency band is BWP 3; if the frequency band information in the first control information is 11, then the terminal device can determine that the target transmission frequency band is BWP 4.

[0133] If the resource scheduling unit is a symbol, that is, the first control information is a symbol-based scheduling of the network device, then the terminal device can determine that the at least one BWP corresponding to the resource scheduling unit is a symbol includes BWP 5 to BWP 8. If the frequency band information carried in the first control information received by the terminal device is 00, then the terminal device can determine that the target transmission frequency band for the data transmission is BWP 5; if the frequency band information in the first control information is 01, then the terminal device can determine that the target transmission frequency band is BWP 6; if the frequency band information in the first control information is 10, then the terminal device can determine that the target transmission frequency band is BWP 7; if the frequency band information in the first control information is 11, then the terminal device can determine that the target transmission frequency band is BWP 8.

[0134] It can be seen that if the first control information is directly used to indicate the eight transmission frequency bands BWP 1 to BWP 8 respectively, then the first control information should include at least 3 bits to indicate different transmission frequency bands. According to the mapping relationship shown in Table 8, the network device only needs 2 bits to indicate the eight transmission frequency bands BWP 1 to BWP 8, which reduces the signaling overhead of the first control information. For example, if the first control information is based on time slot scheduling, the frequency band information carried in the first control information only occupies 2 bits, such as 00 to indicate BWP 1 and 01 to indicate BWP 2.

[0135] Figure 3 It is a schematic flowchart of a method for transmitting data according to an embodiment of the present application. Figure 3 The method shown may be performed by a network device, which may be, for example, Figure 1 The network device 10 shown in FIG. Figure 3 As shown, the method for transmitting data includes:

[0136] In 310, the network device determines at least one transmission frequency band corresponding to the transmission information of the terminal device according to the transmission information of the terminal device and a first mapping relationship, wherein the first mapping relationship includes a correspondence between multiple transmission information and multiple transmission frequency bands, and the transmission information includes at least one of the following: an attribute of the first control information used to schedule the terminal device for data transmission, resource type information used for the data transmission, and service information of the terminal device.

[0137] In 320, the network device determines a target transmission frequency band in the at least one transmission frequency band;

[0138] In 330, the network device sends the first control information to the terminal device;

[0139] In 340, the network device performs the data transmission with the terminal device on the target transmission frequency band.

[0140] Specifically, the network device can determine at least one transmission frequency band corresponding to the transmission information based on the transmission information of the terminal device and the first mapping relationship (different transmission frequency bands can have different bandwidth sizes and / or occupy different frequency domain positions, etc., and different transmission frequency bands can also have different basic parameter sets such as subcarrier spacing, etc.), and configure a target transmission frequency band for data transmission for the terminal device in the at least one transmission frequency band, so as to perform data transmission with the terminal device on the target transmission frequency band.

[0141] Therefore, based on the method of the embodiment of the present application, the network device can determine at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device, and select a transmission frequency band for data transmission for the terminal device from the at least one transmission frequency band. Since the network device only needs to indicate at least one transmission frequency band corresponding to each transmission information, and there is no need to indicate all transmission frequency bands in the system bandwidth, the signaling overhead of the downlink control information can be reduced.

[0142] Optionally, the first control information includes frequency band information of the target transmission frequency band, and the first mapping relationship also includes a correspondence between multiple transmission frequency bands and multiple frequency band information, wherein, before the network device sends the first control information to the terminal device, the method also includes: the network device determines the frequency band information corresponding to the target transmission frequency band from at least one frequency band information corresponding to the at least one transmission frequency band according to the target transmission frequency band and the first mapping relationship.

[0143] It should be noted that each transmission frequency band has its own corresponding frequency band information, and the frequency band information corresponding to each transmission frequency band is not unique. If at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information include the same transmission frequency band, then the frequency band information of the same transmission frequency band may be different or the same when corresponding to different transmission information.

[0144] After the network device determines at least one transmission frequency band corresponding to the transmission information of the terminal device, it should determine the frequency band information corresponding to the target transmission frequency band from at least one frequency band information corresponding to the at least one transmission frequency band corresponding to the transmission information based on the target transmission frequency band and the first mapping relationship.

[0145] Optionally, before the network device performs the data transmission with the terminal device on the target transmission frequency band, the method further includes: the network device sends second control information to the terminal device, and the second control information includes the first mapping relationship.

[0146] Optionally, the first control information includes downlink control information DCI or medium access control element MAC CE.

[0147] Optionally, the second control information packet is radio resource control RRC signaling or system information.

[0148] Optionally, the first control information is DCI, and attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0149] Optionally, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0150] Optionally, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0151] Optionally, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0152] It should be understood that the process of the network device determining the transmission frequency band according to the first mapping relationship can be specifically referred to in the aforementioned Figure 2 For the sake of brevity, the relevant description of the terminal device is not repeated here.

[0153] It should also be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0154] Figure 4 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Figure 4 As shown, the terminal device 400 includes a transceiver unit 410 and a determination unit 420. Among them:

[0155] The transceiver unit 410 is configured to receive first control information sent by a network device, where the first control information is used to schedule the terminal device to perform data transmission;

[0156] A determining unit 420 is configured to determine at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device and a first mapping relationship, wherein the first mapping relationship includes a correspondence between multiple transmission information and multiple transmission frequency bands, and the transmission information includes at least one of the following: an attribute of the first control information, resource type information for the data transmission, and service information of the terminal device;

[0157] The determining unit 420 is further configured to determine a target transmission frequency band in the at least one transmission frequency band;

[0158] The transceiver unit 410 is further configured to perform the data transmission with the network device on the target transmission frequency band according to the first control information.

[0159] Therefore, the terminal device of the embodiment of the present application can determine at least one transmission frequency band corresponding to the transmission information based on its transmission information, and determine the transmission frequency band used for data transmission in the at least one transmission frequency band. Since the network device only needs to indicate at least one transmission frequency band corresponding to each transmission information, and there is no need to indicate all transmission frequency bands in the system bandwidth, the signaling overhead of the downlink control information can be reduced.

[0160] Optionally, the first control information includes frequency band information of the target transmission band, and the first mapping relationship also includes a correspondence between multiple transmission bands and multiple frequency band information, wherein the determination unit 420 is specifically used to: determine the target transmission band as the transmission band corresponding to the frequency band information in the at least one transmission band according to the frequency band information of the target transmission band and the first mapping relationship.

[0161] Optionally, the transceiver unit 410 is further used to: receive second control information sent by the network device, where the second control information includes the first mapping relationship.

[0162] Optionally, the first control information includes downlink control information DCI or medium access control element MAC CE.

[0163] Optionally, the second control information packet is radio resource control RRC signaling or system information.

[0164] Optionally, the first control information is DCI, and attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0165] Optionally, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0166] Optionally, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0167] Optionally, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0168] Figure 5 is a schematic block diagram of a network device 500 according to an embodiment of the present application. Figure 5 As shown, the network device 500 includes a determination unit 510 and a transceiver unit 520. Among them:

[0169] A determining unit 510 is configured to determine at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device and a first mapping relationship, wherein the first mapping relationship includes a correspondence between a plurality of transmission information and a plurality of transmission frequency bands, and the transmission information includes at least one of the following: an attribute of first control information used to schedule the terminal device for data transmission, resource type information used for the data transmission, and service information of the terminal device;

[0170] The determining unit 510 is further configured to determine a target transmission frequency band in the at least one transmission frequency band;

[0171] The transceiver unit 520 is used to send the first control information to the terminal device;

[0172] The transceiver unit 520 is further configured to perform the data transmission with the terminal device on the target transmission frequency band.

[0173] Therefore, the network device of the embodiment of the present application can determine at least one transmission frequency band corresponding to the transmission information based on the transmission information of the terminal device, and select a transmission frequency band for data transmission for the terminal device from the at least one transmission frequency band. Since the network device only needs to indicate at least one transmission frequency band corresponding to each transmission information, and there is no need to indicate all transmission frequency bands in the system bandwidth, the signaling overhead of the downlink control information can be reduced.

[0174] Optionally, the first control information includes frequency band information of the target transmission band, and the first mapping relationship also includes a correspondence between multiple transmission bands and multiple frequency band information, wherein the determination unit 510 is further used to: determine the frequency band information corresponding to the target transmission band from at least one frequency band information corresponding to the at least one transmission band according to the target transmission band and the first mapping relationship.

[0175] Optionally, the transceiver unit 520 is further used to: send second control information to the terminal device, where the second control information includes the first mapping relationship.

[0176] Optionally, the first control information includes downlink control information DCI or medium access control element MAC CE.

[0177] Optionally, the second control information packet is radio resource control RRC signaling or system information.

[0178] Optionally, the first control information is DCI, and attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0179] Optionally, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0180] Optionally, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0181] Optionally, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0182] Figure 6 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present application. Figure 6 As shown, the terminal device includes a processor 610, a transceiver 620 and a memory 630, wherein the processor 610, the transceiver 620 and the memory 630 communicate with each other through an internal connection path. The memory 630 is used to store instructions, and the processor 610 is used to execute the instructions stored in the memory 630 to control the transceiver 620 to receive or send signals. The transceiver 620 is used to:

[0183] Receiving first control information sent by a network device, where the first control information is used to schedule the terminal device to perform data transmission;

[0184] The processor 610 is configured to: determine, according to the transmission information of the terminal device and a first mapping relationship, at least one transmission frequency band corresponding to the transmission information, wherein the first mapping relationship includes a correspondence between a plurality of transmission information and a plurality of transmission frequency bands, and the transmission information includes at least one of the following: an attribute of the first control information, resource type information for the data transmission, and service information of the terminal device; and determine a target transmission frequency band in the at least one transmission frequency band;

[0185] The transceiver 620 is further configured to: perform the data transmission with the network device on the target transmission frequency band according to the first control information.

[0186] Optionally, the first control information includes frequency band information of the target transmission frequency band, and the first mapping relationship also includes a correspondence between multiple transmission frequency bands and multiple frequency band information, wherein the processor 610 is specifically used to: determine, based on the frequency band information of the target transmission frequency band and the first mapping relationship, that the target transmission frequency band is the transmission frequency band in the at least one transmission frequency band that corresponds to the frequency band information.

[0187] Optionally, the transceiver 620 is further used to: receive second control information sent by the network device, where the second control information includes the first mapping relationship.

[0188] Optionally, the first control information includes downlink control information DCI or medium access control element MAC CE.

[0189] Optionally, the second control information packet is radio resource control RRC signaling or system information.

[0190] Optionally, the first control information is DCI, and attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0191] Optionally, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0192] Optionally, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0193] Optionally, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0194] It should be understood that in the embodiment of the present application, the processor 610 may be a central processing unit (CPU), and the processor 610 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0195] The memory 630 may include a read-only memory and a random access memory, and provides instructions and data to the processor 610. A portion of the memory 630 may also include a nonvolatile random access memory.

[0196] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 610 or an instruction in the form of software. The steps of the positioning method disclosed in the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor 610 for execution. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 630, and the processor 610 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it is not described in detail here.

[0197] The terminal device 600 according to the embodiment of the present application may correspond to the terminal device used to execute the method 200 in the above-mentioned method 200, and the terminal device 400 according to the embodiment of the present application, and each unit or module in the terminal device 600 is respectively used to execute each action or processing process performed by the terminal device in the above-mentioned method 200. Here, in order to avoid repetition, its detailed description is omitted.

[0198] Figure 7 is a schematic structural diagram of a network device 700 according to an embodiment of the present application. Figure 7 As shown, the network device includes a processor 710, a transceiver 720 and a memory 730, wherein the processor 710, the transceiver 720 and the memory 730 communicate with each other through an internal connection path. The memory 730 is used to store instructions, and the processor 710 is used to execute the instructions stored in the memory 730 to control the transceiver 720 to receive or send signals. The processor 710 is used to:

[0199] Determine, according to the transmission information of the terminal device and the first mapping relationship, at least one transmission frequency band corresponding to the transmission information, wherein the first mapping relationship includes a correspondence between a plurality of transmission information and a plurality of transmission frequency bands, and the transmission information includes at least one of the following: an attribute of the first control information used to schedule the terminal device to perform data transmission, resource type information used for the data transmission, and service information of the terminal device; determine a target transmission frequency band in the at least one transmission frequency band;

[0200] The transceiver 720 is used for: sending the first control information to the terminal device; and performing the data transmission with the terminal device on the target transmission frequency band.

[0201] Optionally, the first control information includes frequency band information of the target transmission band, and the first mapping relationship also includes a correspondence between multiple transmission bands and multiple frequency band information, wherein the processor 710 is further used to: determine the frequency band information corresponding to the target transmission band from at least one frequency band information corresponding to the at least one transmission band according to the target transmission band and the first mapping relationship.

[0202] Optionally, the transceiver 720 is further used to: send second control information to the terminal device, where the second control information includes the first mapping relationship.

[0203] Optionally, the first control information includes downlink control information DCI or medium access control element MAC CE.

[0204] Optionally, the second control information packet is radio resource control RRC signaling or system information.

[0205] Optionally, the first control information is DCI, and attributes of the first control information include any one of the following information: a DCI format of the DCI, a size of the DCI, and information indicating that the DCI schedules uplink data or downlink data.

[0206] Optionally, the resource type information includes any one of the following information: information indicating that the first control information schedules public resources or dedicated resources of the terminal device, information indicating that the first control information schedules continuous resources or discontinuous resources, and a resource scheduling unit, wherein the resource scheduling unit includes a symbol, a time slot or a subframe.

[0207] Optionally, the service information of the terminal device includes at least one of the following: service type information of the terminal device, service quality information of the terminal device, and service quality information of the terminal device.

[0208] Optionally, the multiple transmission information includes first transmission information and second transmission information, and at least one transmission frequency band corresponding to the first transmission information and at least one transmission frequency band corresponding to the second transmission information are the same as or at least partially different from each other.

[0209] It should be understood that in the embodiment of the present application, the processor 710 may be a central processing unit (CPU), and the processor 710 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0210] The memory 730 may include a read-only memory and a random access memory, and provide instructions and data to the processor 710. A portion of the memory 730 may also include a non-volatile random access memory. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in the form of software. The steps of the positioning method disclosed in conjunction with the embodiment of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor 710. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 730, and the processor 710 reads the information in the memory 730 and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it will not be described in detail here.

[0211] The network device 700 according to the embodiment of the present application may correspond to the network device used to execute the method 300 in the above-mentioned method 300, and the network device 500 according to the embodiment of the present application, and each unit or module in the network device 700 is respectively used to execute each action or processing process performed by the network device in the above-mentioned method 300. Here, in order to avoid redundancy, its detailed description is omitted.

[0212] Figure 8 It is a schematic structural diagram of the system chip of an embodiment of the present application. Figure 8 The system chip 800 includes an input interface 801, an output interface 802, at least one processor 803, and a memory 804. The input interface 801, the output interface 802, the processor 803, and the memory 804 are interconnected through an internal connection path. The processor 803 is used to execute the code in the memory 804.

[0213] Optionally, when the code is executed, the processor 803 may implement the method 200 executed by the terminal device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0214] Optionally, when the code is executed, the processor 803 may implement the method 300 executed by the network device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0215] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0216] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0217] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0218] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0219] In addition, each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0220] If this function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0221] The above are only specific implementation methods of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the present application that is suitable for personal interests. Therefore, the protection scope of the embodiments of the present application should be based on the protection scope of the claims.

Claims

1. A method for determining a transmission frequency band of data, characterized in that: The method comprises: The terminal device determines at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device; the transmission information is a format of downlink control information DCI or uplink and downlink information, and the transmission frequency band is BWP; The terminal determines a transmission frequency band for data transmission from among the at least one transmission frequency band.

2. The method according to claim 1, characterized in that The method further comprises: The terminal device receives first control information sent by a network device, where the first control information is used to schedule the terminal device to perform the data transmission; the first control information includes the DCI.

3. The method according to claim 2, characterized in that The terminal device determines a transmission frequency band for data transmission in the at least one transmission frequency band, comprising: The terminal device determines a transmission frequency band for performing the data transmission in the at least one transmission frequency band according to the frequency band information in the DCI.

4. The method according to claim 2, characterized in that: The uplink and downlink information is used to indicate whether the DCI schedules uplink data or downlink data.

5. The method according to any one of claims 2 to 4, characterized in that: The DCI includes a preset bit for indicating the transmission frequency band used for data transmission.

6. The method according to claim 5, characterized in that The preset bit position includes at most 2 bits.

7. The method according to claim 5, characterized in that The number of the preset bits is 0, 1 or 2.

8. A method for determining a transmission frequency band of data, characterized in that: The method comprises: The network device determines at least one transmission frequency band and transmission information, wherein the transmission information corresponds to the at least one transmission frequency band; the transmission information is a format of downlink control information DCI or uplink and downlink information, and the transmission frequency band is BWP; The network device determines a transmission frequency band for data transmission in the at least one transmission frequency band; The network device sends the transmission information to the terminal device.

9. The method according to claim 8, characterized in that The method further comprises: The network device sends first control information to the terminal device, where the first control information is used to schedule the terminal device to perform the data transmission; the first control information includes the DCI.

10. The method according to claim 9, characterized in that The frequency band information in the DCI is used by the terminal device to determine a transmission frequency band for performing the data transmission in the at least one transmission frequency band.

11. The method according to claim 9, characterized in that The uplink and downlink information is used to indicate whether the DCI schedules uplink data or downlink data.

12. The method according to any one of claims 9 to 11, characterized in that: The DCI includes a preset bit for indicating the transmission frequency band used for data transmission.

13. The method according to claim 12, characterized in that The preset bit position includes at most 2 bits.

14. The method according to claim 12, characterized in that The number of the preset bits is 0, 1 or 2.

15. A terminal device, characterized in that: The terminal device comprises: A determination unit, configured to determine at least one transmission frequency band corresponding to the transmission information according to the transmission information of the terminal device; the transmission information is a format of downlink control information DCI or uplink and downlink information, and the transmission frequency band is BWP; The determining unit is further configured to determine a transmission frequency band for data transmission in the at least one transmission frequency band.

16. The terminal device according to claim 15, characterized in that: The terminal device further includes: A transceiver unit is used to receive first control information sent by a network device, where the first control information is used to schedule the terminal device to perform the data transmission; the first control information includes the DCI.

17. The terminal device according to claim 16, characterized in that: The determining unit is further configured to determine a transmission frequency band for performing the data transmission in the at least one transmission frequency band according to the frequency band information in the DCI.

18. The terminal device according to claim 16, characterized in that: The uplink and downlink information is used to indicate whether the DCI schedules uplink data or downlink data.

19. The terminal device according to any one of claims 16 to 18, characterized in that: The DCI includes a preset bit for indicating the transmission frequency band used for data transmission.

20. The terminal device according to claim 19, characterized in that: The preset bit position includes at most 2 bits.

21. The terminal device according to claim 19, characterized in that: The number of the preset bits is 0, 1 or 2.

22. A network device, characterized in that: The network equipment includes: A determination unit, configured to determine at least one transmission frequency band and transmission information, wherein the transmission information corresponds to the at least one transmission frequency band; the transmission information is a format of downlink control information DCI or uplink and downlink information, and the transmission frequency band is BWP; The determining unit is further configured to determine a transmission frequency band for data transmission in the at least one transmission frequency band; The transceiver unit is used to send the transmission information to the terminal device.

23. The method according to claim 22, characterized in that The transceiver unit is further used to send first control information to the terminal device, where the first control information is used to schedule the terminal device to perform the data transmission; the first control information includes the DCI.

24. The method according to claim 23, characterized in that The frequency band information in the DCI is used by the terminal device to determine a transmission frequency band for performing the data transmission in the at least one transmission frequency band.

25. The method according to claim 23, characterized in that The uplink and downlink information is used to indicate whether the DCI schedules uplink data or downlink data.

26. The method according to any one of claims 23 to 25, characterized in that The DCI includes a preset bit for indicating the transmission frequency band used for data transmission.

27. The method according to claim 26, characterized in that The preset bit position includes at most 2 bits.

28. The method according to claim 26, characterized in that The number of the preset bits is 0, 1 or 2.

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