CN109891991B

CN109891991B - Frequency domain resource allocation method, device and system

Info

Publication number: CN109891991B
Application number: CN201780067630.2A
Authority: CN
Inventors: 高飞; 焦淑蓉; 花梦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2021-02-09
Anticipated expiration: 2037-01-26
Also published as: CN109891991A; WO2018137243A1

Abstract

The application provides a method, a device and a system for configuring frequency domain resources, wherein the method comprises the following steps: a terminal receives first indication information sent by network equipment, wherein the first indication information indicates a first frequency domain resource; determining the size of a first target frequency domain resource which can be used for uplink service transmission; determining a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, wherein the size of the second frequency domain resource is equal to the size of the first target frequency domain resource; and sending the uplink service to the network equipment according to the second frequency domain resource. The first frequency domain resource is indicated to the terminal by the network equipment and is not fixed any more, so that the terminal can determine the suitable frequency domain resource for sending the uplink service from the variable first frequency domain resource, thereby reducing the collision probability of each terminal during uplink service transmission, reducing the time delay and saving the network resource.

Description

Frequency domain resource allocation method, device and system

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for configuring frequency domain resources.

Background

Enhanced Mobile Broadband (eMBB) is a service with high demand on frequency domain resources, such as high definition video, virtual reality/augmented reality and other Mobile Broadband services; ultra-high-reliability and Low-latency Communications (urrllc) are very delay-sensitive services and require very high transmission reliability, such as autopilot, industrial automation control, etc. In a communication system, there is a case where eMBB and urrllc coexist, and therefore, the total frequency domain resources include eMBB total frequency domain resources and urrllc total frequency domain resources. In order to ensure low-latency and high-reliability transmission of the urrllc of each user, frequency domain resources for transmitting the urrllc need to be allocated to each user from the total frequency domain resources of the urrllc. Generally, the urrllc is unpredictable and occurs non-timely, but in the prior art, the total frequency domain resource of the urrllc is fixed, and sometimes, the total frequency domain resource of the urrllc is relatively less, which may cause serious collision of users or increase of transmission delay; sometimes, the total frequency domain resources of the urrllc are relatively more, which causes resource waste.

Disclosure of Invention

The application provides a method, a device and a system for configuring frequency domain resources, which are used for avoiding user collision, increased transmission delay and resource waste.

In a first aspect, the present application provides a method for configuring frequency domain resources, including: a terminal receives first indication information sent by network equipment, wherein the first indication information indicates a first frequency domain resource; determining the size of a first target frequency domain resource which can be used for uplink service transmission; determining a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, wherein the size of the second frequency domain resource is equal to the size of the first target frequency domain resource; and sending the uplink service to the network equipment according to the second frequency domain resource.

Optionally, one implementation manner of determining, by the terminal, the size of the first target frequency domain resource available for uplink service transmission is as follows: determining the size of the first target frequency domain resource according to the second indication information; the second indication information is sent by the terminal receiving network equipment, or the second indication information is stored in the terminal. Or, determining the size of the first target frequency domain resource according to the size of the first frequency domain resource.

Optionally, an implementation manner of the terminal determining the second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource is as follows: determining a first resource set according to the first frequency domain resource and the size of a first target frequency domain resource, wherein the first resource set comprises at least one first sub-resource, the size of each first sub-resource is the same as the size of the first target frequency domain resource, and the positions of the first sub-resources are different; a first sub-resource is determined from the first set of resources as a second frequency domain resource.

Optionally, an implementation manner of the terminal determining one first sub-resource from the first resource set as the second frequency domain resource is as follows: a first sub-resource is arbitrarily selected from the first set of resources as a second frequency domain resource.

Optionally, an implementation manner of the terminal determining, from the first resource set, that one first target frequency domain resource is the second frequency domain resource is as follows: and when the uplink service is the first-pass service, randomly selecting a first sub-resource from the first resource set as a second frequency domain resource.

Optionally, an implementation manner of the terminal determining, from the first resource set, that one of the first sub-resources is the second frequency-domain resource is as follows: when the uplink service is a retransmission service, determining a first sub-resource as a second frequency domain resource from the first resource set according to at least one of the frequency domain resources available for uplink service transmission when the uplink service is sent for the first N times; n is an integer greater than 0.

Optionally, an implementation manner of the terminal sending the uplink service to the network device according to the second frequency domain resource is as follows: and the terminal sends the uplink service to the network equipment on the second frequency domain resource.

Optionally, an implementation manner of the terminal sending the uplink service to the network device according to the second frequency domain resource is as follows: determining the size of a second target frequency domain resource actually used for transmitting the uplink service; determining third frequency domain resources from the second frequency domain resources according to the size of the second target frequency domain resources; the size of the third frequency domain resource is equal to the size of the second target frequency domain resource; and sending the uplink service to the network equipment on the third frequency domain resource.

Optionally, one implementation manner of determining, by the terminal, the size of the second target frequency domain resource actually used for transmitting the uplink service is as follows: determining the size of the second target frequency domain resource according to the third indication information; the third indication information is sent by the terminal receiving network equipment, or the third indication information is stored in the terminal; or, according to the size of the first frequency domain resource, determining the size of the second target frequency domain resource; or, determining the size of the second target frequency domain resource according to the size of the second frequency domain resource.

Optionally, an implementation manner of the terminal determining the third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource is as follows: determining a second resource set according to the second frequency domain resource and the size of the second target frequency domain resource; the second set of resources comprises at least one second sub-resource; the size of each second sub-resource is the same as that of the second target frequency domain resource, and the positions of the second sub-resources are different; and determining a second sub-resource as a third frequency domain resource from the second resource set.

Optionally, an implementation manner of the terminal determining, from the second resource set, that one of the second sub-resources is a third frequency domain resource is as follows: and randomly selecting a second sub-resource from the second resource set as a third frequency domain resource.

Optionally, an implementation manner of the terminal determining, from the second resource set, that one of the second sub-resources is a third frequency domain resource is as follows: and when the uplink service is the first-pass service, randomly selecting a second sub-resource from the second resource set as a third frequency domain resource.

Optionally, an implementation manner of the terminal determining, from the second resource set, that one second target frequency domain resource is a third frequency domain resource is as follows: when the uplink service is a retransmission service, determining a second sub-resource as a third frequency domain resource from the second resource set according to at least one of the frequency domain resources actually used for uplink service transmission during the previous M transmissions of the uplink service; m is an integer greater than 0.

Optionally, one implementation manner of the terminal receiving the first indication information sent by the network device is as follows: receiving system information sent by network equipment; the system information comprises first indication information; or, receiving a physical layer signaling sent by the network device; the physical layer signaling includes first indication information.

Optionally, one implementation manner of the terminal receiving the first indication information sent by the network device is as follows: and the terminal receives the first indication information sent by the network equipment on a first preset resource. The method further comprises the following steps: and if the terminal does not receive the first indication information on the first preset resource, the terminal sends the uplink service to the network equipment on the second preset resource.

Optionally, the terminal further receives first preset resource information sent by the network device; and determining a first preset resource according to the first preset resource information, wherein the first preset resource information comprises: frequency domain information and time domain information of the first preset resource; wherein the time domain information includes start time information and period information.

Optionally, the terminal further receives second preset resource information sent by the network device; and determining a second preset resource according to the second preset resource information.

In a second aspect, the present application provides a terminal, comprising: a transceiver and a processor. The transceiver is used for receiving first indication information sent by network equipment, and the first indication information indicates first frequency domain resources; a processor configured to determine a size of a first target frequency domain resource available for uplink service transmission; and determining a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, wherein the size of the second frequency domain resource is equal to the size of the first target frequency domain resource. And the transceiver is further configured to send the uplink service to the network device according to the second frequency domain resource.

Optionally, when determining the size of the first target frequency domain resource available for uplink service transmission, the processor is specifically configured to: determining the size of the first target frequency domain resource according to the second indication information; the second indication information is sent by the terminal receiving network equipment, or the second indication information is stored in the terminal. Or, determining the size of the first target frequency domain resource according to the size of the first frequency domain resource.

Optionally, when determining the second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, the processor is specifically configured to: determining a first resource set according to the first frequency domain resource and the size of a first target frequency domain resource, wherein the first resource set comprises at least one first sub-resource, the size of each first sub-resource is the same as the size of the first target frequency domain resource, and the positions of the first sub-resources are different; and determining a first sub-resource from the first resource set as a second frequency domain resource.

Optionally, when determining a first sub-resource from the first resource set as the second frequency domain resource, the processor is specifically configured to: a first sub-resource is arbitrarily selected from the first set of resources as a second frequency domain resource.

Optionally, when determining that one of the first target frequency domain resources is the second frequency domain resource from the first resource set, the processor is specifically configured to: and when the uplink service is the first-pass service, randomly selecting a first sub-resource from the first resource set as a second frequency domain resource.

Optionally, when determining that one of the first sub-resources is the second frequency domain resource from the first resource set, the processor is specifically configured to: when the uplink service is a retransmission service, determining a first sub-resource as a second frequency domain resource from the first resource set according to at least one of the frequency domain resources available for uplink service transmission when the uplink service is sent for the first N times; n is an integer greater than 0.

Optionally, when the transceiver sends the uplink service to the network device according to the second frequency domain resource, the transceiver is specifically configured to: and sending the uplink service to the network equipment on the second frequency domain resource.

Optionally, the processor is further configured to determine a size of a second target frequency domain resource actually used for transmitting the uplink service; determining third frequency domain resources from the second frequency domain resources according to the size of the second target frequency domain resources; the size of the third frequency domain resource is equal to the size of the second target frequency domain resource.

When the transceiver sends the uplink service to the network device according to the second frequency domain resource, the transceiver is specifically configured to: and sending the uplink service to the network equipment on the third frequency domain resource.

Optionally, when determining the size of the second target frequency domain resource actually used for transmitting the uplink service, the processor is specifically configured to: determining the size of the second target frequency domain resource according to the third indication information; the third indication information is sent by the terminal receiving network equipment, or the third indication information is stored in the terminal; or, according to the size of the first frequency domain resource, determining the size of the second target frequency domain resource; or, determining the size of the second target frequency domain resource according to the size of the second frequency domain resource.

Optionally, when determining the third frequency domain resource from the second frequency domain resources according to the size of the second target frequency domain resource, the processor is specifically configured to: determining a second resource set according to the second frequency domain resource and the size of the second target frequency domain resource; the second set of resources comprises at least one second sub-resource; the size of each second sub-resource is the same as that of the second target frequency domain resource, and the positions of the second sub-resources are different; and determining a second sub-resource as a third frequency domain resource from the second resource set.

Optionally, when determining that one of the second sub-resources is a third frequency domain resource from the second resource set, the processor is specifically configured to: and randomly selecting a second sub-resource from the second resource set as a third frequency domain resource.

Optionally, when determining that one of the second sub-resources is a third frequency domain resource from the second resource set, the processor is specifically configured to: and when the uplink service is the first-pass service, randomly selecting a second sub-resource from the second resource set as a third frequency domain resource.

Optionally, when determining that one of the second target frequency domain resources is a third frequency domain resource from the second resource set, the processor is specifically configured to: when the uplink service is a retransmission service, determining a second sub-resource as a third frequency domain resource from the second resource set according to at least one of the frequency domain resources actually used for uplink service transmission during the previous M transmissions of the uplink service; m is an integer greater than 0.

Optionally, when receiving the first indication information sent by the network device, the transceiver is specifically configured to: receiving system information sent by network equipment; the system information comprises first indication information; or, receiving a physical layer signaling sent by the network device; the physical layer signaling comprises the first indication information.

Optionally, when receiving the first indication information sent by the network device, the transceiver is specifically configured to: and receiving first indication information sent by the network equipment on the first preset resource.

The transceiver is further configured to send the uplink service to the network device on the second preset resource if the terminal does not receive the first indication information on the first preset resource.

Optionally, the transceiver is further configured to receive first preset resource information sent by the network device.

The processor is further configured to determine a first preset resource according to the first preset resource information, where the first preset resource information includes: frequency domain information and time domain information of the first preset resource; wherein the time domain information includes: start time information and period information.

Optionally, the transceiver is further configured to receive second preset resource information sent by the network device.

And the processor is also used for determining a second preset resource according to the second preset resource information.

In a third aspect, the present application provides a frequency domain resource allocation system, including: a network device and a terminal as provided in the second aspect of the present application. The network device is configured to send the first indication information to the terminal.

In summary, since the first frequency domain resource is indicated to the terminal by the network device, the first frequency domain resource is determined by the network device, and can be changed according to the actual network situation, and is not fixed or unchanged any more, so that the terminal can determine the suitable frequency domain resource for sending the uplink service from the variable first frequency domain resource, thereby reducing the collision probability during the uplink service transmission of each terminal, reducing the time delay, and saving the network resource.

Drawings

Fig. 1 is a flowchart of a frequency domain resource allocation method according to an embodiment of the present application;

fig. 2 is a flowchart of a frequency domain resource allocation method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a frequency domain resource allocation system according to an embodiment of the present application.

Detailed Description

In the following, some terms in the present application are explained to facilitate understanding by those skilled in the art:

a network device: a Radio Access Network (RAN) device is a device for accessing a terminal to a wireless Network, and may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, or eNodeB) in Long Term Evolution (LTE), a relay Station or an Access point, or a Base Station in a 5G Network, and the like, and is not limited herein.

A terminal: which may be wireless or wireline, and which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

Fig. 1 is a flowchart of a frequency domain resource allocation method according to an embodiment of the present application, and as shown in fig. 1, the method according to the embodiment may include:

s101, the network equipment sends first indication information to the terminal.

In this embodiment, the frequency domain resource used for the uplink service transmission is notified to the terminal by the network device, that is, the network device sends first indication information to the terminal, where the first indication information is used to indicate a first frequency domain resource, that is, to indicate a size and a location of the first frequency domain resource, where the first frequency domain resource is a total frequency domain resource that can be used by all terminals for the uplink service transmission, and the uplink service may be, for example, urrllc, or the uplink service may also be a service that does not need uplink scheduling, and does not exclude other services. Accordingly, the terminal receives the first indication information sent by the network equipment.

Optionally, an implementation manner of sending, by the network device, the first indication information to the terminal may be: the network equipment periodically sends the first indication information to the terminal, and/or the network equipment sends the first indication information to the terminal after determining that the first frequency domain resource is updated.

S102, the terminal determines the size of a first target frequency domain resource which can be used for uplink service transmission.

In this embodiment, the terminal may determine the size of the frequency domain resource that can be used by the terminal for uplink service transmission, where the size of the frequency domain resource is referred to as the size of the first target frequency domain resource.

S103, the terminal determines a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource.

In this embodiment, the terminal determines, according to the size of the first target frequency domain resource, a second frequency domain resource from the first frequency domain resource, where the size of the second frequency domain resource is equal to the size of the first target frequency domain resource, and the second frequency domain resource belongs to the first frequency domain resource. The second frequency domain resource is, for example, an allocated frequency domain resource allocated to the terminal for uplink service transmission in the first frequency domain resource.

And S104, the terminal sends the uplink service to the network equipment according to the second frequency domain resource.

In this embodiment, after determining the second frequency domain resource, the terminal sends the uplink service to the network device according to the second frequency domain resource.

One possible implementation manner of S104 is: the terminal uses all the second frequency domain resources for the terminal to send the uplink service, that is, the terminal sends the uplink service to the network device on the second frequency domain resources.

One possible implementation manner of S104 is: the terminal determines, from the second frequency domain resource, the frequency domain resource actually used by the terminal for uplink service transmission, and for a specific implementation process, reference may be made to the related description in the following embodiments, which is not described herein again. And then the terminal sends data to the network equipment on the frequency domain resource actually used for uplink service transmission. The frequency domain resource actually used for uplink service transmission belongs to a second frequency domain resource (which may be a part of the second frequency domain resource or may be the entire second frequency domain resource).

In this embodiment, because the first frequency domain resource is indicated to the terminal by the network device, the first frequency domain resource is determined by the network device, and may be changed according to the actual network situation, and is not fixed, so that the terminal may determine the suitable frequency domain resource for sending the uplink service from the variable first frequency domain resource, thereby reducing the collision probability during uplink service transmission of each terminal, reducing the time delay, and saving the network resource.

Optionally, one possible implementation manner of the above S102 is: and the terminal determines the size of the first target frequency domain resource according to the second indication information.

For example: the second indication information is used to indicate a corresponding relationship between the size of each uplink service and the size of each first target frequency domain resource, and the terminal determines the size of the first target frequency domain resource corresponding to the size of the uplink service according to the corresponding relationship indicated by the size of the uplink service and the second indication information sent in S104. Optionally, the corresponding relationship between the size of each uplink service and the size of each first target frequency domain resource may be stored in the terminal in a table form.

For example: the second indication information is used to indicate a corresponding relationship between each delay requirement (for example, the time of the allowable delay) and the size of each first target frequency domain resource, and the terminal determines the size of the first target frequency domain resource corresponding to the current delay requirement of the uplink service according to the current delay requirement for sending the uplink service and the corresponding relationship indicated by the second indication information. Alternatively, the correspondence between each delay requirement and the size of each first target frequency domain resource may be stored in the terminal in a table form. For example: the second indication information is used for indicating the size of the first target frequency domain resource.

It should be noted that, how the terminal determines the size of the first target frequency domain resource according to the second indication information is not limited to the above implementation. The second indication information may be sent by the terminal receiving network device. Alternatively, the second indication information may be stored in the terminal, for example, the second indication information is stored in the terminal as specified in a communication protocol of the terminal and the network device.

Optionally, one possible implementation manner of the above S102 is: and the terminal determines the size of the first target frequency domain resource according to the size of the first frequency domain resource.

For example: the terminal determines the size of a frequency domain resource from a first set as the size of a first target frequency domain resource according to the size of a first frequency domain resource, the first set comprises the size of at least one frequency domain resource, the sizes of the frequency domain resources are different, the first set is {1RB, 2RB, 4RB, 8RB,.. kRB }, for example, other multiples are not excluded, and other possible set forms are not excluded. The first set may be specified in a communication protocol or sent by the network device to the terminal. Optionally, the terminal may further determine, according to at least one of parameters such as a physical cell identifier, a terminal identifier, a current subframe number, and a current timeslot number, a size of one frequency domain resource from the first set as the size of the first target frequency domain resource. Optionally, the terminal may further determine, according to the size of the current uplink service and the current delay requirement, the size of one frequency domain resource from the first set as the size of the first target frequency domain resource.

For example: the terminal determines a first set according to the size of the first frequency domain resource, and then the terminal determines the size of one frequency domain resource from the first set as the size of a first target frequency domain resource according to the size of the current uplink service and the current time delay requirement.

For example: the terminal obtains the size of the first target frequency domain resource according to the size of the first frequency domain resource and a preset formula, wherein the preset formula is that the value obtained by multiplying the size of the first frequency domain resource by a first coefficient is rounded, and the first coefficient is a number smaller than 1 and larger than 0; and substituting the size of the first frequency domain resource into a preset formula to obtain a value, namely the size of the first target frequency domain resource.

Optionally, one possible implementation manner of S103 is: and the terminal determines the second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource and a preset rule. Optionally, the terminal may further determine the second frequency domain resource from the first frequency domain resource according to at least one of parameters such as a physical cell identifier, a terminal identifier, a current subframe number, and a current time slot number. Optionally, the terminal may further determine the second frequency domain resource from the first frequency domain resource according to the current size of the uplink service or the current delay requirement.

Optionally, one possible implementation manner of S103 is: the terminal determines a first resource set according to the first frequency domain resource and the size of the first target frequency domain resource, wherein the first resource set comprises at least one first sub-resource, the size of each first sub-resource is the same as the size of the first target frequency domain resource, and the positions of the first sub-resources are different; and the terminal determines a first sub-resource from the first resource set as the second frequency domain resource. Wherein each of the first sub-resources belongs to a first frequency domain resource.

One way for the terminal to determine the first resource set according to the first frequency domain resource and the size of the first target frequency domain resource is as follows: the terminal takes the frequency domain resources of the size of each continuous first target frequency domain resource in the first frequency domain resources as the first sub-resource in the first resource set. For example, the size of the first target frequency domain resource is 5RB, then each first sub-resource in the first resource set is a frequency domain resource of each consecutive 5RB in the first frequency domain resource. Note that the present embodiment is not limited to this.

A first feasible implementation manner for the terminal to determine one first sub-resource from the first resource set as the second frequency domain resource is as follows: and the terminal randomly selects a first sub-resource from the first resource set as the second frequency domain resource. Whether the uplink service is the first transmission service or the retransmission service, the terminal randomly selects one first sub-resource from the first resource set as the second frequency domain resource.

A second feasible implementation manner for the terminal to determine one first sub-resource from the first resource set as the second frequency domain resource is as follows: and when the uplink service is a first-pass service, the terminal randomly selects a first sub-resource from the first resource set as the second frequency domain resource.

A third possible implementation manner for the terminal to determine one first sub-resource from the first resource set as the second frequency domain resource is as follows: when the uplink service is a retransmission service, determining a first sub-resource from the first resource set as the second frequency domain resource according to at least one of the frequency domain resources available for uplink service transmission when the uplink service is transmitted for the previous N times; and N is an integer greater than 0. For example: the second frequency domain resource obtained in this embodiment is not completely the same as at least one of the frequency domain resources available for uplink service transmission in the previous N transmissions; therefore, the first uplink service and the retransmission uplink service can obtain frequency grading gain.

Fig. 2 is a flowchart of a frequency domain resource allocation method according to an embodiment of the present application, and as shown in fig. 2, the method according to the embodiment may include:

s201, the network equipment sends first indication information to the terminal.

S202, the terminal determines the size of a first target frequency domain resource which can be used for uplink service transmission.

S203, the terminal determines a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource.

The specific implementation processes of S201-S203 may refer to the related description of the embodiment shown in fig. 1, and are not described herein again.

S204, the terminal determines the size of a second target frequency domain resource actually used for transmitting the uplink service.

In this embodiment, after determining the second frequency domain resource, the terminal needs to determine the frequency domain resource actually used for uplink service transmission from the second frequency domain resource. Therefore, the terminal of this embodiment may determine the size of the frequency domain resource actually used by the terminal for uplink traffic transmission, and the size of the frequency domain resource is referred to as the size of the second target frequency domain resource.

And S205, the terminal determines the third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource.

In this embodiment, the terminal determines, according to the size of the second target frequency domain resource, a third frequency domain resource from the second frequency domain resource, where the size of the third frequency domain resource is equal to the size of the second target frequency domain resource, and the third frequency domain resource belongs to the second frequency domain resource. The third frequency domain resource is, for example, a transmission frequency domain resource actually used by the terminal for uplink service transmission in the second frequency domain resource.

And S206, the terminal sends the uplink service to the network equipment on the third frequency domain resource.

In this embodiment, the terminal sends the uplink service to the network device on a third frequency domain resource, where the third frequency domain resource belongs to the second frequency domain resource, and the third frequency domain resource may be a part of the frequency domain resources of the second frequency domain resource or may be all of the second frequency domain resources.

Optionally, a first possible implementation manner of the foregoing S204 is: and the terminal determines the size of the second target frequency domain resource according to the third indication information.

For example: the third indication information is used to indicate a corresponding relationship between the size of each uplink service and the size of each second target frequency domain resource, and the terminal determines the size of the second target frequency domain resource corresponding to the size of the uplink service according to the size of the uplink service sent in S206 and the corresponding relationship indicated by the third indication information. Optionally, the corresponding relationship between the size of each uplink service and the size of each second target frequency domain resource may be stored in the terminal in a table form.

For example: the third indication information is used to indicate a correspondence between each delay requirement (for example, the time of the allowable delay) and each second target frequency domain resource, and the terminal determines the size of the second target frequency domain resource corresponding to the current delay requirement of the uplink service according to the current delay requirement for transmitting the uplink service and the correspondence indicated by the third indication information. Alternatively, the correspondence between each delay requirement and the size of each second target frequency domain resource may be stored in the terminal in a table form.

For example: the third indication information is used for indicating the size of the second target frequency domain resource.

It should be noted that, how the terminal determines the size of the second target frequency domain resource according to the third indication information is not limited to the above implementation. Wherein, the third indication information may be sent by the terminal receiving network device. Alternatively, the third indication may be stored in the terminal, for example, the third indication information is stored in the terminal as specified in a communication protocol of the terminal and the network device.

Optionally, a second possible implementation manner of the foregoing S204 is: and the terminal determines the size of the second target frequency domain resource according to the size of the first frequency domain resource or the size of the second frequency domain resource.

For example: the terminal determines the size of a frequency domain resource from a second set as the size of a second target frequency domain resource according to the size of the first frequency domain resource or the size of a second frequency domain resource, the first set comprises the size of at least one frequency domain resource, the sizes of the frequency domain resources are different, the second set is {1RB, 2RB, 4RB, 8RB,.. multidata.. kRB }, for example, other multiple relations are not excluded, and other possible set forms are not excluded. The second set may be specified in the communication protocol or sent by the network device to the terminal. Optionally, the terminal may further determine, according to at least one of parameters such as a physical cell identifier, a terminal identifier, a current subframe number, and a current timeslot number, a size of one frequency domain resource from the second set as a size of the second target frequency domain resource. Optionally, the terminal may further determine, according to the size of the current uplink service and the current delay requirement, the size of one frequency domain resource from the second set as the size of the second target frequency domain resource.

For example: and the terminal determines a second set according to the size of the first frequency domain resource or the size of the second frequency domain resource, and then determines the size of one frequency domain resource from the second set as the size of a second target frequency domain resource according to the size of the current uplink service and the current time delay requirement.

For example: the terminal obtains the size of the second target frequency domain resource according to the size of the first frequency domain resource or the size of the second frequency domain resource and a preset formula, wherein the preset formula is that the size of the first frequency domain resource is multiplied by a value obtained by a first coefficient and then is rounded, and the second coefficient is a number which is less than 1 and greater than 0; and substituting the size of the first frequency domain resource into a preset formula to obtain a value, namely the size of the second target frequency domain resource. Or, the preset formula is, for example, a value obtained by multiplying the size of the second frequency domain resource by a third coefficient, and then rounding the value, where the third coefficient is a number smaller than 1 and larger than 0; and substituting the size of the second frequency domain resource into a preset formula to obtain a value, namely the size of the second target frequency domain resource.

Optionally, one possible implementation manner of S205 is: and the terminal determines the third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource and a preset rule. Optionally, the terminal may further determine the third frequency domain resource from the second frequency domain resource according to at least one of the parameters, such as the physical cell identifier, the terminal identifier, the current subframe number, and the current timeslot number. Optionally, the terminal may further determine the third frequency domain resource from the second frequency domain resource according to the current size of the uplink service or the current delay requirement.

Optionally, one possible implementation manner of S205 is: the terminal determines a second resource set according to a second frequency domain resource and the size of the second target frequency domain resource, wherein the second resource set comprises at least one second sub-resource, the size of each second sub-resource is the same as the size of the second target frequency domain resource, and the positions of the second sub-resources are different; and the terminal determines a second sub-resource from the second resource set as the third frequency domain resource. Wherein each second sub-resource belongs to a second frequency domain resource.

Wherein, according to the second frequency domain resource and the size of the second target frequency domain resource, the terminal determines a second resource set in a manner that: the terminal takes the frequency domain resources of the size of each continuous second target frequency domain resource in the second frequency domain resources as the second sub-resources in the second resource set. For example, the size of the second target frequency domain resource is 2RB, then each second sub-resource in the second resource set is a frequency domain resource of each consecutive 2RB in the second frequency domain resource. Note that the present embodiment is not limited to this.

The first feasible implementation manner in which the terminal determines one second sub-resource from the second resource set as the third frequency domain resource is as follows: and the terminal randomly selects a second sub-resource from the second resource set as the third frequency domain resource. Whether the uplink service is the first transmission service or the retransmission service, the terminal randomly selects one second sub-resource from the second resource set as the third frequency domain resource.

A second feasible implementation manner for the terminal to determine a second sub-resource from a second resource set as the third frequency domain resource is as follows: and when the uplink service is the first-pass service, the terminal randomly selects a second sub-resource from the second resource set as the third frequency domain resource.

A third feasible implementation manner for the terminal to determine one second sub-resource from the second resource set as the third frequency domain resource is as follows: when the uplink service is a retransmission service, determining a second sub-resource as the third frequency domain resource from the second resource set according to at least one of the frequency domain resources actually used for uplink service transmission when the uplink service is sent for the first M times; and M is an integer greater than 0. For example: the third frequency domain resource obtained in this embodiment is not completely the same as at least one of the frequency domain resources actually used for uplink service transmission during the previous M times of transmission; therefore, the first uplink service and the retransmission uplink service can obtain frequency grading gain.

In this embodiment, because the first frequency domain resource is indicated to the terminal by the network device, the first frequency domain resource is determined by the network device, and may change with the actual network situation, and is not fixed, so that the terminal may determine a suitable frequency domain resource available for uplink service transmission from the variable first frequency domain resource, and then determine the frequency domain resource actually used for uplink service transmission from the frequency domain resource, thereby reducing the collision probability during uplink service transmission of each terminal, reducing the time delay, and also saving the network resource.

On the basis of the foregoing embodiments of the present application, optionally, one possible implementation manner of S101 or S201 is: the network device sends system information to the terminal. Correspondingly, the terminal receives system information sent by the network equipment, wherein the system information comprises the first indication information. Optionally, before the network device sends the system information to the terminal, the network device sends a paging message to the terminal, where the paging message is used to indicate that the system information is changed, and after receiving the paging message, the terminal receives the system information sent by the network device again according to the paging message.

Optionally, one possible implementation manner of S101 or S201 is: the network device sends physical layer signaling to the terminal. Correspondingly, the terminal receives a physical layer signaling sent by the network device, where the physical layer signaling includes the first indication information, and the physical layer signaling is, for example, a Radio Resource Control (RRC) signaling.

Optionally, one possible implementation manner of S101 or S201 is: and the network equipment sends the first indication information to the terminal on the first preset resource. Correspondingly, the terminal receives first indication information sent by the network equipment on the first preset resource. Optionally, if the terminal does not receive the first indication information sent by the network device on the first preset resource, the terminal sends the uplink service to the network device on the second preset resource; this is because the first frequency domain resource may be changed at this time, the first frequency domain resource before the change may be allocated to the transmission of other uplink services except the uplink service, and if the terminal still sends the uplink service according to the first frequency domain resource before the change, the transmission of other uplink services may be affected; therefore, the terminal of this embodiment sends the uplink service to the network device on the second preset resource. Therefore, when the terminal fails to acquire the first frequency domain resource, the uplink service can still be sent on the premise of not interfering other uplink services.

Optionally, the first preset resource is determined by the terminal according to first preset resource information, where the first preset resource information includes: frequency domain information and time domain information of the first preset resource; wherein the time domain information comprises: start time information and period information. Optionally, the first preset resource information may be specified in a communication protocol, or may be sent to the terminal by the network device.

Optionally, the second preset resource is determined by the terminal according to second preset resource information, where the second preset resource information includes: and the frequency domain information and the time domain information of the second preset resource. Optionally, the second preset resource information may be specified in a communication protocol, or may be sent to the terminal by the network device.

Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in fig. 3, the terminal 10 according to the embodiment may include: the transceiver 11 is configured to receive first indication information sent by a network device, where the first indication information indicates a first frequency domain resource.

The processor 12 is configured to determine a size of a first target frequency domain resource available for uplink service transmission; and determining a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, wherein the size of the second frequency domain resource is equal to the size of the first target frequency domain resource.

The transceiver 11 is further configured to send the uplink service to the network device according to the second frequency domain resource.

Optionally, when determining the size of the first target frequency domain resource available for uplink service transmission, the processor 12 is specifically configured to: determining the size of the first target frequency domain resource according to second indication information; the second indication information is sent by the terminal receiving the network equipment, or the second indication information is stored in the terminal; or, determining the size of the first target frequency domain resource according to the size of the first frequency domain resource.

Optionally, when the processor 12 determines, according to the size of the first target frequency domain resource, a second frequency domain resource from the first frequency domain resource, specifically, is configured to: determining a first resource set according to the first frequency domain resource and the size of the first target frequency domain resource, wherein the first resource set comprises at least one first sub-resource, the size of each first sub-resource is the same as the size of the first target frequency domain resource, and the position of each first sub-resource is different; and determining a first sub-resource from the first set of resources as the second frequency domain resource.

Optionally, when determining a first sub-resource from the first resource set as the second frequency-domain resource, the processor 12 is specifically configured to: and randomly selecting a first sub-resource from the first resource set as the second frequency domain resource.

Optionally, when determining that one of the first target frequency domain resources in the first resource set is the second frequency domain resource, the processor 12 is specifically configured to: and when the uplink service is a first-pass service, randomly selecting a first sub-resource from the first resource set as the second frequency domain resource.

Optionally, when determining that one of the first sub-resources is the second frequency-domain resource from the first resource set, the processor 12 is specifically configured to: when the uplink service is a retransmission service, determining a first sub-resource from the first resource set as the second frequency domain resource according to at least one of the frequency domain resources available for uplink service transmission when the uplink service is transmitted for the previous N times; and N is an integer greater than 0.

Optionally, when the transceiver 11 sends the uplink service to the network device according to the second frequency domain resource, specifically configured to: and sending the uplink service to the network equipment on the second frequency domain resource.

Optionally, the processor 12 is further configured to determine a size of a second target frequency domain resource actually used for transmitting the uplink service; determining a third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource; the size of the third frequency domain resource is equal to the size of the second target frequency domain resource.

When the transceiver 11 sends the uplink service to the network device according to the second frequency domain resource, specifically, the transceiver is configured to: and sending the uplink service to the network equipment on the third frequency domain resource.

Optionally, when the processor 12 determines the size of the second target frequency domain resource actually used for transmitting the uplink service, it is specifically configured to: determining the size of a second target frequency domain resource according to third indication information sent by the network equipment; or, determining the size of the second target frequency domain resource according to the size of the first frequency domain resource; or, determining the size of the second target frequency domain resource according to the size of the second frequency domain resource.

Optionally, when determining the third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource, the processor 12 is specifically configured to: determining a second resource set according to the second frequency domain resource and the size of the second target frequency domain resource; the second set of resources comprises at least one second sub-resource; the size of each second sub-resource is the same as that of the second target frequency domain resource, and the positions of the second sub-resources are different; and determining a second sub-resource from the second resource set as the third frequency domain resource.

Optionally, when determining that one of the second sub-resources is the third frequency domain resource from the second resource set, the processor 12 is specifically configured to: and randomly selecting a second sub-resource from the second resource set as the third frequency domain resource.

Optionally, when determining that one of the second sub-resources is the third frequency domain resource from the second resource set, the processor 12 is specifically configured to: and when the uplink service is the first-pass service, randomly selecting a second sub-resource from the second resource set as the third frequency domain resource.

Optionally, when determining that one of the second target frequency domain resources is the third frequency domain resource from the second resource set, the processor 12 is specifically configured to: when the uplink service is a retransmission service, determining a second sub-resource as the third frequency domain resource from the second resource set according to at least one of the frequency domain resources actually used for uplink service transmission during the previous M transmissions of the uplink service; and M is an integer greater than 0.

Optionally, when receiving the first indication information sent by the network device, the transceiver 11 is specifically configured to: receiving system information sent by the network equipment; the system information comprises the first indication information; or, receiving a physical layer signaling sent by the network device; the physical layer signaling includes the first indication information.

Optionally, when receiving the first indication information sent by the network device, the transceiver 11 is specifically configured to: and receiving the first indication information sent by the network equipment on a first preset resource.

The transceiver 11 is further configured to send an uplink service to the network device on a second preset resource if the terminal does not receive the first indication information on the first preset resource.

Optionally, the transceiver 11 is further configured to receive first preset resource information sent by the network device.

The processor 12 is further configured to determine the first preset resource according to the first preset resource information, where the first preset resource information includes: frequency domain information and time domain information of the first preset resource; the time domain information comprises start time information and period information.

Optionally, the transceiver 11 is further configured to receive second preset resource information sent by the network device.

The processor 12 is further configured to determine the second preset resource according to the second preset resource information.

It should be noted that the transceiver 11 may be a single device, and the transceiver 11 may also include a transmitter and a receiver, which are integrated together to form the transceiver 11.

The processor 12 described above may be a general purpose processor (CPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Optionally, the terminal of this embodiment may further include a memory 13, where the memory 13 is configured to store a program code for executing the frequency domain resource allocation method.

The terminal of this embodiment may be configured to execute the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 4 is a schematic structural diagram of a frequency domain resource allocation system according to an embodiment of the present application, and as shown in fig. 4, the system of the present embodiment includes: a terminal 10 and a network device 20, where the terminal 10 may adopt the structure of the apparatus embodiment shown in fig. 3, and correspondingly, may execute the technical solutions of the above method embodiments, and the implementation principle and the technical effect thereof are similar, and are not described herein again. At least one terminal 10 is shown as an example.

Claims

1. A method for configuring frequency domain resources, comprising:

a terminal receives first indication information from network equipment, wherein the first indication information indicates a first frequency domain resource, and the first frequency domain resource is a total frequency domain resource used by a plurality of terminals for uplink service transmission;

the terminal determines the size of a first target frequency domain resource which can be used for uplink service transmission;

the terminal determines a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, wherein the size of the second frequency domain resource is equal to the size of the first target frequency domain resource;

and the terminal sends the uplink service to the network equipment according to the second frequency domain resource.

2. The method of claim 1, wherein the terminal determines a size of a first target frequency domain resource available for uplink traffic transmission, and comprises:

the terminal determines the size of the first target frequency domain resource according to second indication information; wherein the second indication information is received by the terminal from the network device, or the second indication information is stored in the terminal; alternatively, the first and second electrodes may be,

and the terminal determines the size of the first target frequency domain resource according to the size of the first frequency domain resource.

3. The method of claim 1, wherein the terminal determines a second frequency-domain resource from the first frequency-domain resources according to the size of the first target frequency-domain resource, and comprises:

the terminal determines a first resource set according to the first frequency domain resource and the size of the first target frequency domain resource, wherein the first resource set comprises at least one first sub-resource, the size of each first sub-resource is the same as the size of the first target frequency domain resource, and the positions of the first sub-resources are different;

and the terminal determines a first sub-resource from the first resource set as the second frequency domain resource.

4. The method of claim 3, wherein the terminal determines a first sub-resource from the first set of resources as the second frequency-domain resource, and comprises:

and the terminal randomly selects a first sub-resource from the first resource set as the second frequency domain resource.

5. The method of claim 3, wherein the terminal determines a first target frequency-domain resource from the first set of resources as the second frequency-domain resource, and comprises:

and when the uplink service is a first-pass service, the terminal randomly selects a first sub-resource from the first resource set as the second frequency domain resource.

6. The method according to claim 3 or 5, wherein the terminal determines one of the first sub-resources from the first set of resources as the second frequency-domain resource, and comprises:

when the uplink service is a retransmission service, the terminal determines a first sub-resource from the first resource set as the second frequency domain resource according to at least one of the frequency domain resources available for uplink service transmission when the uplink service is sent for the first N times; and N is an integer greater than 0.

7. The method according to any one of claims 1 to 6, wherein the terminal sending the uplink service to the network device according to the second frequency domain resource, comprises:

and the terminal sends the uplink service to the network equipment on the second frequency domain resource.

8. The method according to any one of claims 1 to 6, wherein the terminal sending the uplink service to the network device according to the second frequency domain resource, comprises:

the terminal determines the size of a second target frequency domain resource actually used for transmitting the uplink service;

the terminal determines a third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource; the size of the third frequency domain resource is equal to the size of the second target frequency domain resource;

and the terminal sends the uplink service to the network equipment on the third frequency domain resource.

9. The method of claim 8, wherein the determining, by the terminal, the size of the second target frequency domain resource actually used for transmitting the uplink traffic comprises:

the terminal determines the size of a second target frequency domain resource according to the third indication information; wherein the third indication information is received by the terminal from the network device, or the third indication information is stored in the terminal; alternatively, the first and second electrodes may be,

the terminal determines the size of the second target frequency domain resource according to the size of the first frequency domain resource; alternatively, the first and second electrodes may be,

and the terminal determines the size of the second target frequency domain resource according to the size of the second frequency domain resource.

10. The method of claim 9, wherein the terminal determines a third frequency domain resource from the second frequency domain resources according to the size of the second target frequency domain resource, and comprises:

the terminal determines a second resource set according to the second frequency domain resource and the size of the second target frequency domain resource; the second set of resources comprises at least one second sub-resource; the size of each second sub-resource is the same as that of the second target frequency domain resource, and the positions of the second sub-resources are different;

and the terminal determines a second sub-resource as the third frequency domain resource from the second resource set.

11. The method of claim 10, wherein the terminal determines one of the second sub-resources from the second set of resources as the third frequency domain resource, and comprises:

and the terminal randomly selects a second sub-resource from the second resource set as the third frequency domain resource.

12. The method of claim 10, wherein the terminal determines one of the second sub-resources from the second set of resources as the third frequency domain resource, and comprises:

and when the uplink service is the first-pass service, the terminal randomly selects a second sub-resource from the second resource set as the third frequency domain resource.

13. The method according to claim 10 or 12, wherein the terminal determines a second target frequency domain resource from the second resource set as the third frequency domain resource, and comprises:

when the uplink service is a retransmission service, the terminal determines a second sub-resource as the third frequency domain resource from the second resource set according to at least one of the frequency domain resources actually used for uplink service transmission during the previous M transmissions of the uplink service; and M is an integer greater than 0.

14. The method according to any one of claims 1 to 13, wherein the terminal receives the first indication information from the network device, and comprises:

the terminal receives system information from the network equipment; the system information comprises the first indication information; alternatively, the first and second electrodes may be,

the terminal receives physical layer signaling from the network equipment; the physical layer signaling includes the first indication information.

15. The method of claim 14, wherein the terminal receives the first indication information from the network device, and wherein the first indication information comprises:

the terminal receives the first indication information from the network equipment on a first preset resource;

the method further comprises the following steps:

and if the terminal does not receive the first indication information on the first preset resource, the terminal sends an uplink service to the network equipment on a second preset resource.

16. The method of claim 15, further comprising:

the terminal receives first preset resource information from the network equipment;

the terminal determines the first preset resource according to the first preset resource information, wherein the first preset resource information includes: frequency domain information and time domain information of the first preset resource; wherein the time domain information comprises: start time information and period information.

17. The method of claim 15, further comprising:

the terminal receives second preset resource information from the network equipment;

and the terminal determines the second preset resource according to the second preset resource information.

18. A terminal, comprising: a transceiver and a processor;

the transceiver is configured to receive first indication information from a network device, where the first indication information indicates a first frequency domain resource, and the first frequency domain resource is a total frequency domain resource used by multiple terminals for uplink service transmission;

the processor is configured to determine a size of a first target frequency domain resource available for uplink service transmission; and determining a second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, wherein the size of the second frequency domain resource is equal to the size of the first target frequency domain resource;

the transceiver is further configured to send the uplink service to the network device according to the second frequency domain resource.

19. The terminal of claim 18, wherein, when determining the size of the first target frequency domain resource available for uplink traffic transmission, the processor is specifically configured to: determining the size of the first target frequency domain resource according to second indication information; the second indication information is sent to the terminal by the network device, or the second indication information is stored in the terminal; alternatively, the first and second electrodes may be,

and determining the size of the first target frequency domain resource according to the size of the first frequency domain resource.

20. The terminal of claim 18, wherein the processor, when determining the second frequency domain resource from the first frequency domain resource according to the size of the first target frequency domain resource, is specifically configured to: determining a first resource set according to the first frequency domain resource and the size of the first target frequency domain resource, wherein the first resource set comprises at least one first sub-resource, the size of each first sub-resource is the same as the size of the first target frequency domain resource, and the position of each first sub-resource is different; and determining a first sub-resource from the first set of resources as the second frequency domain resource.

21. The terminal of claim 20, wherein the processor, when determining a first sub-resource from the first set of resources as the second frequency-domain resource, is specifically configured to: and randomly selecting a first sub-resource from the first resource set as the second frequency domain resource.

22. The terminal of claim 20, wherein the processor, when determining that one of the first target frequency-domain resources from the first set of resources is the second frequency-domain resource, is specifically configured to: and when the uplink service is a first-pass service, randomly selecting a first sub-resource from the first resource set as the second frequency domain resource.

23. The terminal according to claim 20 or 22, wherein the processor, when determining that one of the first sub-resources from the first set of resources is the second frequency-domain resource, is specifically configured to: when the uplink service is a retransmission service, determining a first sub-resource from the first resource set as the second frequency domain resource according to at least one of the frequency domain resources available for uplink service transmission when the uplink service is transmitted for the previous N times; and N is an integer greater than 0.

24. The terminal according to any one of claims 18 to 23, wherein the transceiver, when transmitting the uplink service to the network device according to the second frequency domain resource, is specifically configured to: and sending the uplink service to the network equipment on the second frequency domain resource.

25. The terminal of any of claims 18-23, wherein the processor is further configured to determine a size of a second target frequency domain resource actually used for transmitting the uplink traffic; determining a third frequency domain resource from the second frequency domain resource according to the size of the second target frequency domain resource; the size of the third frequency domain resource is equal to the size of the second target frequency domain resource;

26. The terminal according to claim 25, wherein the processor, when determining the size of the second target frequency domain resource actually used for transmitting the uplink service, is specifically configured to: determining the size of the second target frequency domain resource according to the third indication information; wherein the third indication information is received by the terminal from the network device, or the third indication information is stored in the terminal; or, determining the size of the second target frequency domain resource according to the size of the first frequency domain resource; or, determining the size of the second target frequency domain resource according to the size of the second frequency domain resource.

27. The terminal of claim 26, wherein the processor, when determining a third frequency domain resource from the second frequency domain resources according to the size of the second target frequency domain resource, is specifically configured to: determining a second resource set according to the second frequency domain resource and the size of the second target frequency domain resource; the second set of resources comprises at least one second sub-resource; the size of each second sub-resource is the same as that of the second target frequency domain resource, and the positions of the second sub-resources are different; and determining a second sub-resource from the second resource set as the third frequency domain resource.

28. The terminal of claim 27, wherein the processor, when determining that one of the second sub-resources is the third frequency domain resource from the second set of resources, is specifically configured to: and randomly selecting a second sub-resource from the second resource set as the third frequency domain resource.

29. The terminal of claim 27, wherein the processor, when determining that one of the second sub-resources is the third frequency domain resource from the second set of resources, is specifically configured to: and when the uplink service is the first-pass service, randomly selecting a second sub-resource from the second resource set as the third frequency domain resource.

30. The terminal according to claim 27 or 29, wherein the processor, when determining a second target frequency domain resource from the second set of resources as the third frequency domain resource, is specifically configured to: when the uplink service is a retransmission service, determining a second sub-resource as the third frequency domain resource from the second resource set according to at least one of the frequency domain resources actually used for uplink service transmission during the previous M transmissions of the uplink service; and M is an integer greater than 0.

31. The terminal according to any of claims 18 to 30, wherein the transceiver, when receiving the first indication information from the network device, is specifically configured to: receiving system information from the network device; the system information comprises the first indication information; or, receiving physical layer signaling from the network device; the physical layer signaling includes the first indication information.

32. The terminal according to claim 30, wherein the transceiver, when receiving the first indication information from the network device, is specifically configured to: receiving the first indication information from the network equipment on a first preset resource;

the transceiver is further configured to send an uplink service to the network device on a second preset resource if the terminal does not receive the first indication information on the first preset resource.

33. The terminal of claim 32, wherein the transceiver is further configured to receive first preset resource information from the network device;

the processor is further configured to determine the first preset resource according to the first preset resource information, where the first preset resource information includes: frequency domain information and time domain information of the first preset resource; wherein the time domain information comprises: start time information and period information.

34. The terminal of claim 32, wherein the transceiver is further configured to receive second preset resource information from the network device;

the processor is further configured to determine the second preset resource according to the second preset resource information.

35. The terminal of claim 18, further comprising: a memory for storing program code for performing the frequency domain resource allocation method of any of claims 1-17.

36. A frequency domain resource allocation system, comprising: a network device and a terminal according to any of claims 18-34;

the network device is configured to send the first indication information to the terminal.