CN116801393A

CN116801393A - Data transmission method and device and computer readable storage medium

Info

Publication number: CN116801393A
Application number: CN202210253394.6A
Authority: CN
Inventors: 雷珍珠
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2023-09-22
Also published as: WO2023174201A1

Abstract

The application provides a data transmission method and device and a computer readable storage medium, and relates to the technical field of communication. The method comprises the following steps: the network equipment sends first configuration information to the UE, and correspondingly, the UE receives the first configuration information, wherein the first configuration information is used for configuring the frequency domain position of at least one frequency domain resource pair, each frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are not overlapped; and in the first time unit, the UE selects uplink frequency domain resources or downlink frequency domain resources to transmit data in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit. The scheme of the application can ensure that the UE accurately knows the frequency domain resource range of uplink and downlink transmission, and is beneficial to avoiding interference during data transmission.

Description

Data transmission method and device and computer readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and apparatus, and a computer readable storage medium.

Background

With the rapid increase of the uplink service demands of users, higher demands are put on the uplink coverage, rate and time delay of terminal devices in the network. In the existing time division duplex (Time Division Duplexing, abbreviated as TDD) system, the transmission directions of the network devices on the same time domain resource are the same, for example, the transmission direction of the network device on the time slot 0 is downlink, so that the network device can only perform downlink communication on the time slot 0 and cannot perform uplink communication. For a UE (User Equipment, UE for short) with uplink traffic demand, this results in that the UE cannot transmit uplink data in time slot 0.

In order to meet the uplink service requirement of the user, one possible solution is that the network device divides the frequency domain resource range for uplink transmission and the frequency domain resource range for downlink transmission on the frequency domain, so that different UEs can use the frequency domain resources in different ranges to simultaneously perform uplink and downlink transmission, and meanwhile, the complexity of the network device is reduced by utilizing frequency division to reduce interference, and the network device is easier to realize.

However, the prior art only discusses possible solutions at the network device side and does not consider specific processing logic at the UE side. If the UE side still uses the prior art to perform data transmission, interference may be generated during data transmission between different UEs and between the network device and the UE.

Disclosure of Invention

The technical problem solved by the application is how to avoid interference during data transmission.

In order to solve the above technical problems, an embodiment of the present application provides a data transmission method, including: receiving first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap; and selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmitting data on the first time unit.

Optionally, the uplink frequency domain resource is one or more segments of frequency domain resources in the uplink partial bandwidth BWP, and the downlink frequency domain resource is one or more segments of frequency domain resources in the downlink BWP.

Optionally, the first configuration information includes at least one of: for each uplink BWP, the frequency domain location of each uplink frequency domain resource in the uplink BWP; for each downlink BWP, the frequency domain location of each downlink frequency domain resource in the downlink BWP.

Optionally, the first configuration information further includes at least one of: for each uplink BWP, an index of each uplink frequency domain resource in the uplink BWP; for each downlink BWP, an index of each downlink frequency domain resource in the downlink BWP.

Optionally, the index of the uplink frequency domain resource and the index of the downlink frequency domain resource in the same frequency domain resource pair are the same.

Optionally, the at least one frequency domain resource pair is a frequency domain resource pair, and the frequency domain resource pair corresponding to the first time unit is the at least one frequency domain resource pair.

Optionally, the method further comprises: and receiving indication information, wherein the indication information is used for determining a frequency domain resource pair for data transmission in the first time unit.

Optionally, the indication information includes an index of an initial activation frequency domain resource pair, where the initial activation frequency domain resource pair is one frequency domain resource pair of the at least one frequency domain resource pair, and before the selecting uplink frequency domain resource or downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit to transmit data, the method further includes: after initial access, switching from initial BWP to initial active frequency domain resource pair corresponding to the index of the initial active frequency domain resource pair on the initial active BWP pair, wherein the frequency domain resource pair corresponding to the first time unit is the initial active frequency domain resource pair.

Optionally, the indication information includes an index of a default frequency domain resource pair, where the default frequency domain resource pair is one frequency domain resource pair of the at least one frequency domain resource pair, and before the selecting an uplink frequency domain resource or a downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit to transmit data, the method further includes: and under the condition that the resource backspacing condition is met, switching from a source frequency domain resource pair to a default frequency domain resource pair corresponding to an index of the default frequency domain resource pair, wherein the frequency domain resource pair corresponding to the first time unit is the default frequency domain resource pair.

Optionally, the indication information is carried by radio resource control RRC signaling.

Optionally, the resource back-off condition includes an inactivity timer timeout.

Optionally, the indication information is used for dynamically indicating an index of a frequency domain resource pair, and before the uplink frequency domain resource or the downlink frequency domain resource is selected in the frequency domain resource pair corresponding to the first time unit to transmit data, the method further includes: and switching from the source frequency domain resource pair to a frequency domain resource pair corresponding to an index of the frequency domain resource pair indicated by the indication information, wherein the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair indicated by the indication information.

Optionally, the frequency domain resource pair indicated by the indication information and the source frequency domain resource pair belong to the same BWP pair or different BWP pairs.

Optionally, the indication information is carried by downlink control information DCI, and an information field in the DCI for indicating the scheduling resource is adjusted according to a bandwidth difference between the source frequency domain resource pair and the frequency domain resource pair indicated by the indication information.

Optionally, the method further comprises: and receiving second configuration information, wherein the second configuration information is used for configuring the transmission direction of each time unit in a first time period, and the first time unit belongs to the first time period.

Optionally, the first period is configured by a UE-level slot of the user equipment.

Optionally, the first configuration information is carried through RRC signaling.

In order to solve the above technical problem, an embodiment of the present application further provides a data transmission device, including: the receiving module is used for receiving first configuration information, the first configuration information is used for configuring the frequency domain position of at least one frequency domain resource pair, each frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are not overlapped; and the transmission module is used for selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmitting data on the first time unit.

In order to solve the above technical problem, an embodiment of the present application further provides a data transmission method, including: transmitting first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap; and selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of each terminal device on the first time unit, and transmitting data on the first time unit.

Optionally, the method further comprises: and sending indication information, wherein the indication information is used for determining a frequency domain resource pair for data transmission in the first time unit.

Optionally, the indication information includes an index of an initial activation frequency domain resource pair, where the initial activation frequency domain resource pair is one frequency domain resource pair of the at least one frequency domain resource pair, and before the selecting uplink frequency domain resource or downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit to transmit data, the method further includes: after initial access, switching from initial BWP to initial activation frequency domain resource pair corresponding to the index of the initial activation frequency domain resource pair on the initial activation BWP pair, wherein the frequency domain resource pair corresponding to the first time unit is the initial activation frequency domain resource pair.

Optionally, the method further comprises: and sending second configuration information, wherein the second configuration information is used for configuring the transmission direction of each time unit in a first time period, and the first time unit belongs to the first time period.

In order to solve the above technical problem, an embodiment of the present application further provides a data transmission device, including: a sending module, configured to send first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap; and the transmission module is used for selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmitting data on the first time unit.

To solve the above technical problem, embodiments of the present application further provide a computer readable storage medium, where the computer readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and when the computer program is executed by a processor, the steps of the above method are performed.

In order to solve the above technical problem, an embodiment of the present application further provides a data transmission device, including a memory and a processor, where the memory stores a computer program that can be run on the processor, and the processor executes the steps of the method when running the computer program.

To solve the above technical problem, embodiments of the present application also provide a computer program product comprising a computer program for causing a computer to execute the steps of the above method when the computer program is run on the computer.

In order to solve the technical problem, the embodiment of the application also provides a communication system which comprises network equipment and terminal equipment for executing the method.

In order to solve the above technical problem, the embodiments of the present application further provide a chip (or data transmission device) on which a computer program is stored, where the steps of the above method are implemented when the computer program is executed by the chip.

Compared with the prior art, the technical scheme of the embodiment of the application has the following beneficial effects:

compared with the prior art that the UE always performs data transmission based on the whole frequency domain, the method and the device ensure that the UE can accurately acquire the frequency domain resource range of uplink and downlink transmission, so that the UE can accurately determine the uplink (or downlink) frequency domain resource corresponding to the time unit by using the transmission direction of the current time unit (namely the first time unit) to perform uplink (or downlink) transmission, and interference with other UE or network equipment is avoided. Specifically, the UE may determine a specific frequency domain location of each frequency domain resource pair configured to the UE by the network device based on the first configuration information. Further, when data transmission is actually performed on the first time unit, according to the first configuration information and in combination with the transmission direction of the first time unit, uplink frequency domain resources or downlink frequency domain resources configured to the UE by the network device in the first time unit are selected to transmit data. Therefore, the frequency domain resources for data transmission of the UE can be precisely limited to the frequency domain resources which are configured to the UE by the network and accord with the current transmission direction, so that different UEs can be ensured to perform data transmission on the respectively configured specific frequency domain resources, and interference is avoided when the network equipment and the UE perform transmission.

The network device in this embodiment actively sends the first configuration information to indicate to each managed UE a frequency domain resource range for uplink and downlink transmission, so that each UE can accurately determine uplink (or downlink) transmission by using the transmission direction of the current time unit (i.e., the first time unit) to determine uplink (or downlink) frequency domain resources corresponding to the time unit, thereby avoiding interference caused by data transmission between different UEs or between UEs and itself. Specifically, the network device may indicate a specific frequency domain location of each frequency domain resource pair configured to the UE based on the first configuration information. Further, when data transmission is actually performed in the first time unit, according to the first configuration information configured to each UE and in combination with the transmission direction of the first time unit, uplink frequency domain resources or downlink frequency domain resources configured to each UE in the first time unit are selected to transmit data with each UE. Therefore, the frequency domain resources for data transmission between the network equipment and the specific UE can be precisely limited to the frequency domain resources which are configured for the specific UE and accord with the current transmission direction, so that the data transmission between different UEs on the respectively configured specific frequency domain resources is ensured, and the interference between the network equipment and the UE and the interference between the UE and the UE in the data transmission can be avoided.

Drawings

Fig. 1 is a signaling interaction diagram of a data transmission method according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a frequency domain resource pair according to an embodiment of the present application;

fig. 3 is a signaling interaction diagram of a data transmission method according to another embodiment of the present application;

FIG. 4 is a schematic diagram of a first exemplary application scenario of an embodiment of the present application;

FIGS. 5 and 6 are schematic diagrams of a second exemplary application scenario of an embodiment of the present application;

FIGS. 7 and 8 are schematic diagrams of a third exemplary application scenario according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another data transmission device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another data transmission device according to an embodiment of the present application.

Detailed Description

The method provided by the embodiment of the application relates to network equipment and UE, and uplink and downlink signals can be transmitted between the network equipment and the UE.

The UE according to the embodiments of the present application is a device having a wireless communication function, and may be referred to as a terminal (terminal), a terminal device, a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE proxy, a UE apparatus, or the like. The UE may be fixed or mobile. It should be noted that the UE may support at least one wireless communication technology, such as long term evolution (Long Term Evolution, LTE for short), new Radio (NR), and the like. For example, the UE may be a mobile phone, a tablet, a desktop, a notebook, a kiosk, a car-mounted terminal, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal in future mobile communication network, or a terminal in a public mobile network (public land mobile network) of the future evolution, etc. In some embodiments of the present application, the terminal device may also be a device with a transceiver function, such as a chip system. The chip system may include a chip and may also include other discrete devices.

In the embodiment of the present application, the network device is a device that provides a wireless communication function for the UE, and may also be referred to as an access network device, a radio access network (radio access network, RAN) device, or an access network element. Wherein the network device may support at least one wireless communication technology, e.g., LTE, NR, etc. By way of example, network devices include, but are not limited to: next generation base stations (gnbs), evolved node bs (enbs), radio network controllers (radio network controller, RNCs), node bs (node bs, NB), base station controllers (base station controller, BSC), base transceiver stations (base transceiver station, BTS), home base stations (e.g., home evolved node B, or home node B, HNB), baseband units (BBUs), transceiving points (transmitting and receiving point, TRPs), transmitting points (transmitting point, TP), mobile switching centers, and the like in a fifth generation mobile communication system (5 th-generation, 5G). The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in the cloud wireless access network (cloud radio access network, CRAN) scenario, or the access network device may be a relay station, an access point, an on-board device, a terminal device, a wearable device, and a network device in future mobile communication or a network device in a future evolved PLMN, etc. In some embodiments, the network device may also be an apparatus, such as a system-on-a-chip, having wireless communication functionality for the UE. By way of example, the chip system may include a chip, and may also include other discrete devices.

As described in the background art, in the prior art, when uplink and downlink transmissions are allowed to be simultaneously performed on different frequency domain resources by different UEs to meet uplink service requirements of users, only a processing manner at a network device side is considered, and specific processing logic at the UE side is not considered.

However, for the UE side, the UE still supports half duplex, that is, the UE can only perform downlink reception or uplink transmission at a certain point in time. And according to the existing standard, the UE performs uplink communication or downlink communication based on the entire frequency domain (e.g., the entire Bandwidth Part (BWP)), which causes interference between the UE and the network device and between UEs when the network device configures resources and performs data transmission using the above solution.

For example, from the perspective of the network device, the network device may transmit downlink data to UE1 using frequency domain resource range 1 in time slot 0 while receiving data transmitted by UE2 using frequency domain resource range 2. However, for UE2, since UE2 performs uplink communication based on the entire frequency domain, UE2 may upload data using frequency domain resource range 1 in time slot 0, and the uplink signal transmitted by UE2 will interfere with downlink reception of UE1 in frequency domain resource range 1. This interference becomes particularly severe when UE1 and UE2 are very close together.

In order to solve the above technical problems, an embodiment of the present application provides a data transmission method, including: the network equipment sends first configuration information to the UE, and correspondingly, the UE receives the first configuration information, wherein the first configuration information is used for configuring the frequency domain position of at least one frequency domain resource pair, each frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are not overlapped; the UE may select an uplink frequency domain resource or a downlink frequency domain resource in a frequency domain resource pair corresponding to the first time unit according to a transmission direction of the first time unit, and transmit data on the first time unit.

The embodiment ensures that the UE can accurately acquire the frequency domain resource range of uplink and downlink transmission, so that the UE can accurately determine the uplink (or downlink) frequency domain resource corresponding to the time unit by using the transmission direction of the current time unit (namely the first time unit) to perform uplink (or downlink) transmission, thereby avoiding interference with other UE or network equipment. Specifically, the UE may determine a specific frequency domain location of each frequency domain resource pair configured to the UE by the network device based on the first configuration information. Further, when data transmission is actually performed on the first time unit, according to the first configuration information and in combination with the transmission direction of the first time unit, uplink frequency domain resources or downlink frequency domain resources configured to the UE by the network device in the first time unit are selected to transmit data. Therefore, the frequency domain resources for data transmission of the UE can be precisely limited to the frequency domain resources which are configured to the UE by the network and accord with the current transmission direction, so that different UEs can be ensured to perform data transmission on the respectively configured specific frequency domain resources, and interference is avoided when data transmission is performed between the network equipment and the UE and between the UE and the UE.

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

Fig. 1 is a signaling interaction diagram of a data transmission method according to an embodiment of the present application (denoted as a first embodiment).

The embodiment can be applied to a data transmission scenario, in which both sides performing data transmission perform data transmission on configured frequency domain resources according to an indicated transmission direction, so as to avoid interference. The interference may be generated, for example, by occupying the frequency domain resources allocated to other UEs at the same time or by occupying the frequency domain resources allocated to the other UEs to transmit data, where the transmission directions of the other UEs are opposite to that of the other UEs.

In a specific implementation, in the data transmission method provided in the following steps (S) 101 to S103, the actions performed by the UE may be performed by a chip with a data transmission function in the UE, or may be performed by a baseband chip in the UE. The actions performed by the network device may be performed by a chip with a data transmission function in the network device, or may be performed by a baseband chip in the network device.

Specifically, referring to fig. 1, the data transmission method according to the present embodiment may include the following steps:

S101, the network device (may be denoted as network device 12) sends the first configuration information to the UE (may be denoted as UE 11). Accordingly, UE11 receives the first configuration information from network device 12.

The first configuration information may be used to configure frequency domain locations of at least one frequency domain resource pair, each of which may include an uplink frequency domain resource and a downlink frequency domain resource.

In a specific embodiment, the first configuration information may be carried by radio resource control (Radio Resource Control, abbreviated RRC) signaling.

In a specific embodiment, the uplink frequency domain resource may be one or more segments of frequency domain resources in the uplink BWP, and the downlink frequency domain resource may be one or more segments of frequency domain resources in the downlink BWP.

The uplink frequency domain resource is a segment of frequency domain resource in the uplink BWP, which may mean that the uplink frequency domain resource continuously occupies a segment of bandwidth interval in the bandwidth of the uplink BWP, such as the uplink frequency domain resource 0 and the uplink frequency domain resource 1 shown in fig. 2. The uplink frequency domain resource being a multi-segment frequency domain resource in the uplink BWP may refer to that the uplink frequency domain resource discontinuously occupies a multi-segment bandwidth interval in the bandwidth of the uplink BWP. For uplink BWP, one or more uplink frequency domain resources may be partitioned. All bandwidths of the upstream BWP may be divided to obtain at least one upstream frequency domain resource. Alternatively, only part of the bandwidth of the uplink BWP may be divided into uplink frequency domain resources, and the blank part of the uplink BWP0 in fig. 2 is the reserved bandwidth interval. Wherein, there may be a partial overlap of the frequency domain resources between the uplink frequency domain resources of different indexes, or the frequency domain resources may not overlap at all, which is not a limitation of the present application.

Network device 12 may configure UE11 with a plurality of uplink BWP, each of which may be divided with at least one uplink frequency domain resource. Accordingly, the first configuration information may include: for each uplink BWP, the frequency domain location and index (index may also be referred to as number) of each uplink frequency domain resource in the uplink BWP. The uplink frequency domain resources on different uplink BWP may each be separately indexed. For example, the index of the uplink frequency domain resource on the uplink BWP1 may start from 0, and the index of the uplink frequency domain resource on the uplink BWP2 may also start from 0. The uplink frequency domain resources on different uplink BWP may also be jointly indexed, e.g. the index of the uplink frequency domain resource on uplink BWP1 is 0-4, and the index of the uplink frequency domain resource on uplink BWP2 may start from 5.

It should be noted that, when an uplink BWP includes only one uplink frequency domain resource, the first configuration information may or may not include an index of the uplink frequency domain resource for the uplink BWP.

For example, when indicating the frequency domain location of the uplink frequency domain resource, the configuration of the uplink frequency domain resource may be added to a BWP uplink common (BWP-uplink communication) message or a BWP uplink dedicated (BWP-uplink dedicated) message, for example, an uplink frequency domain resource addition list (uplink frequency domain-to-modlist) Indication Element (IE) may be added to the message, where the size of the list is the maximum value of the number of uplink frequency domain resources in the uplink BWP (maxnrofubband), and the IE may include an index of each uplink frequency domain resource and the frequency domain location. The configuration of the frequency domain location may be by a resource indication value (Resource Indication Value, RIV) configuring a continuous segment of frequency domain resources or by a bit map (bitmap) configuring one or more segments of frequency domain resources.

Similarly, the downlink frequency domain resource being a segment of the frequency domain resource in the downlink BWP may refer to that the downlink frequency domain resource continuously occupies a segment of the bandwidth interval in the bandwidth of the downlink BWP, as downlink frequency domain resource 1 shown in fig. 2. The downlink frequency domain resource being a multi-segment frequency domain resource in the downlink BWP may refer to that the downlink frequency domain resource discontinuously occupies a multi-segment bandwidth interval in the bandwidth of the downlink BWP, as downlink frequency domain resource 0 shown in fig. 2. For downlink BWP, one or more downlink frequency domain resources may be partitioned. All bandwidth of the downstream BWP may be divided to obtain at least one downstream frequency domain resource, as shown in fig. 2. Alternatively, only part of the bandwidth of the downlink BWP may be divided into downlink frequency domain resources. The downlink frequency domain resources of different indexes may have partial overlap of the frequency domain resources (for example, downlink frequency domain resource 1 and downlink frequency domain resource 0 in fig. 2), or may not overlap the frequency domain resources at all, which is not limited by the present application.

Network device 12 may configure UE11 with a plurality of downlink BWP, each of which may be divided with at least one downlink frequency domain resource. Accordingly, the first configuration information may include: for each downlink BWP, the frequency domain location and index of each downlink frequency domain resource in the downlink BWP. The downlink frequency domain resources on different downlink BWP may each be separately indexed. For example, the index of the downlink frequency domain resource on downlink BWP1 may start from 0, and the index of the downlink frequency domain resource on downlink BWP2 may also start from 0. The downlink frequency domain resources on different downlink BWP may also be jointly indexed, e.g. the index of the downlink frequency domain resource on downlink BWP1 is 0-4, and the index of the downlink frequency domain resource on downlink BWP2 may start from 5. When one downlink BWP includes only one downlink frequency domain resource, the first configuration information may or may not include an index of the downlink frequency domain resource for the downlink BWP.

Illustratively, when indicating the frequency domain location of the downlink frequency domain resource, the configuration of the downlink frequency domain resource may be added in a BWP downlink common (BWP-downlink communication) message or a BWP downlink dedicated (BWP-downlink communication) message, e.g., a downlink frequency domain resource addition list (downlink subband-ToAddModList) IE may be added in the message, which is the maximum value of the number of downlink frequency domain resources in the downlink BWP (maxnrofubsides), and this IE may contain the index and the frequency domain location of each downlink frequency domain resource. The configuration of the frequency domain location may be by a RIV configuring a segment of contiguous frequency domain resources or by a bit map (bitmap) format configuring one or more segments of frequency domain resources.

In a specific embodiment, the uplink BWP and the downlink BWP may be configured as a BWP pair, and the uplink BWP and the downlink BWP in one BWP pair may be two frequency domain resources having an overlap in the frequency domain, for example, the uplink BWP in one BWP pair may be a part of the downlink BWP. For example, the uplink BWP and the downlink BWP having the same index may be one BWP pair. The uplink frequency domain resources and the downlink frequency domain resources with the same index in the same BWP pair may be configured as one frequency domain resource pair. For example, with continued reference to fig. 2, a downlink BWP (BWP 0) with an index of 0 is configured with a downlink frequency domain resource (downlink frequency domain resource 0) with an index of 0 and a downlink frequency domain resource (downlink frequency domain resource 1) with an index of 1, and an uplink BWP0 is configured with an uplink frequency domain resource (downlink frequency domain resource 0) with an index of 0 and an uplink frequency domain resource (uplink frequency domain resource 1) with an index of 1. The downlink frequency domain resource 0 and the uplink frequency domain resource 0 are a frequency domain resource pair, and the downlink frequency domain resource 1 and the uplink frequency domain resource 1 are a frequency domain resource pair.

In a specific embodiment, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair may be two frequency domain resources on the same time domain resource. In particular, the same time domain resource may refer to the same time domain resource, which may include resources corresponding to one or more time units. The time units may be communication granularity of UE11 and network device 12 in the time domain. For example, a time unit (e.g., a first time unit) in the present application may be a slot, a mini-slot, a subframe, a symbol, a frame, etc.

Further, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap.

Thus, the transmission directions of different frequency domain resources can be configured with a single frequency domain resource within one time unit as granularity. Specifically, a plurality of frequency domain resources may be configured in the BWP corresponding to one time unit, and transmission directions of different frequency domain resource configurations may be different. For the network device 12, data may be transmitted to the UE11 in a downlink frequency domain resource or data transmitted by other UEs may be received in an uplink frequency domain resource in one time unit. For example, in fig. 5 below, in time slot 0, network device 12 may transmit data to UE11 in downlink frequency domain resource 0 in frequency domain resource pair 0, and may also receive data transmitted by other UEs in uplink frequency domain resource 0 in frequency domain resource pair 0.

In a specific embodiment, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair may be continuous or discontinuous in the frequency domain. If discontinuous, there may be a frequency domain interval other than 0 between the uplink frequency domain resource and the downlink frequency domain resource, where the frequency domain interval forms a guard band (guard band) between the uplink frequency domain resource and the downlink frequency domain resource, so that interference between the uplink frequency domain resource and the downlink frequency domain resource may be avoided. For example, referring to fig. 5 below, the frequency domain resource pairs 0 are shown with blank portions, i.e., guard bands, between the uplink and downlink frequency domain resources.

In a specific embodiment, with continued reference to fig. 1, the data transmission method according to this embodiment may further include the steps of:

s102, in response to receiving the first configuration information, the UE11 determines a frequency domain location of at least one frequency domain resource pair configured by the network device 12 to the UE 11. Wherein S102 is an optional step.

Specifically, the UE11 may determine a frequency domain location of a frequency domain resource pair in each BWP pair according to the first configuration information.

For example, the frequency domain location and index of each downlink frequency domain resource may be obtained in a configuration IE of the newly added frequency domain resource under the BWP downlink common message or the BWP downlink dedicated message. Likewise, the frequency domain location and index of each uplink frequency domain resource may be obtained from the configuration IE of the newly added frequency domain resource under the BWP uplink common message or the BWP uplink dedicated message.

s103, the UE11 selects uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmits data with the network device 12 in the first time unit. For example, assuming that the transmission direction corresponding to the first time unit is uplink, the UE11 may select an uplink frequency domain resource in the frequency domain resource pair corresponding to the first time unit when performing S103, and transmit data to the network device 12 in the first time unit. For another example, assuming that the transmission direction corresponding to the first time unit is downlink, the UE11 may select a downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit when executing S103, and receive data sent by the network device 12 in the first time unit.

For the network device 12, according to the transmission direction of each terminal device on the first time unit, uplink frequency domain resources or downlink frequency domain resources may be selected in the frequency domain resource pair corresponding to the first time unit, and data may be transmitted on the first time unit. For example, in connection with fig. 2, in the first time unit, the network device 12 may send data to the UE11 on the downlink frequency domain resource 0, and may also receive data sent by other UEs on the uplink frequency domain resource 0.

In a specific embodiment, the first configuration information may include a frequency domain resource pair, where the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair configured by the first configuration information. For the plurality of BWP configured to the UE, the first configuration information may include one frequency domain resource pair on each BWP, and the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair configured by the first configuration information on the currently activated BWP.

In a specific embodiment, the first configuration information may include a plurality of frequency domain resource pairs, where a determination is required of the frequency domain resource pairs actually used by the first time unit. For the plurality of BWP configured to the UE, the first configuration information may include a pair of frequency domain resources on each BWP, wherein at least one BWP has a plurality of pairs of frequency domain resources thereon, and the pair of frequency domain resources corresponding to the first time unit is one of the plurality of pairs of frequency domain resources configured by the first configuration information on the BWP currently activated. A detailed description of a specific procedure for determining the frequency domain resource pair actually used by the first time unit is described in connection with fig. 3.

Specifically, referring to fig. 3, fig. 3 is a signaling interaction diagram of a data transmission method according to another embodiment (denoted as a second embodiment) of the present application, which is different from the first embodiment shown in fig. 1 described above, in that in this embodiment, the network device 12 may further perform S104, while or after performing S101, to send, to the UE11, indication information, where the indication information is used to determine a frequency domain resource pair for data transmission in the first time unit. In response to receiving the indication information, the UE11 may perform S105, before the first time unit, switching from the currently located frequency domain resource pair (hereinafter referred to as a source frequency domain resource pair) or the BWP pair to the frequency domain resource pair indicated by the indication information (i.e., a target frequency domain resource pair). The indication information here may be indication information 1 or indication information 2 hereinafter. In the case of the indication information 2, the indication information 1 may be transmitted between the network device and the UE before the transmission of the indication information 2. In the following description of the present application, if the indication information is mentioned, and whether the indication information is the indication information 1 or the indication information 2 is not explicitly described, the indication information may be the indication information 1 or the indication information 2.

In one implementation, the indication information (denoted as indication information 1) may include an index of an initially activated (first active) frequency domain resource pair, and the initially activated frequency domain resource pair corresponding to the index of the initially activated frequency domain resource pair is one of the at least one frequency domain resource pair.

Specifically, the initial activation frequency domain resource pair may be a frequency domain resource pair on an initial activation BWP pair, and each BWP pair may be configured with a corresponding initial activation frequency domain resource pair, and when the BWP pair becomes an initial activation BWP pair, the initial activation frequency domain resource pair configured on the BWP pair is the frequency domain resource pair used when the UE11 performs data transmission next. The initially activated BWP pair may be configured by the network device 12 through RRC signaling (i.e. indication information 1 is carried in RRC signaling).

Further, S105 may include the steps of: after the initial access, switching from the initial BWP to an initial activation frequency domain resource pair corresponding to an index of an initial activation frequency domain resource pair on the initial activation BWP pair, wherein the frequency domain resource pair corresponding to the first time unit is the initial activation frequency domain resource pair.

For example, after UE11 initially accesses a cell managed by network device 12, it may switch from initial BWP to an initial activated BWP pair, and specifically to an initial activated frequency domain resource pair corresponding to an index of an initial activated frequency domain resource pair on the initial activated BWP pair indicated in indication information 1. Then, data is transmitted at S103 over the first time unit using the network device 12 and the uplink or downlink frequency domain resources of the initially activated frequency domain resource pair in accordance with the indicated transmission direction.

In one implementation, the indication information 1 may include an index of a default frequency domain resource pair, and the default frequency domain resource pair corresponding to the index of the default frequency domain resource pair is one of the at least one frequency domain resource pair.

During data transmission by the UE11 on any one of the at least one frequency domain resource pair or the initially activated frequency domain resource pair, when the resource back-off condition is satisfied, the UE11 may switch to a default frequency domain resource pair corresponding to an index of the default frequency domain resource pair, and continue data transmission using the default frequency domain resource pair and the network device 12 next. For convenience of description, the frequency domain resource pair used by the UE11 before handover will be referred to as a source frequency domain resource pair.

In particular, the default frequency domain resource pair may be a frequency domain resource pair on a default BWP pair, which may be configured by the network device 12 through RRC signaling (i.e., the indication information 1 is carried in RRC signaling).

Further, S105 may include the steps of: and when the resource back-off condition is met, switching from the source frequency domain resource pair to a default frequency domain resource pair corresponding to an index of the default frequency domain resource pair, wherein the frequency domain resource pair corresponding to the first time unit is the default frequency domain resource pair.

Further, the resource backoff condition may include an inactivity timer (inactivity timer) timeout, which may be configured by the network device 12 through RRC signaling.

For example, when the inactivity timer expires, UE11 may fall back to the default frequency domain resource pair on the default BWP pair. Then, data is transmitted at the first time unit using the uplink or downlink frequency domain resources of the default frequency domain resource pair and the network device 12 in accordance with the indicated transmission direction in S103.

It should be noted that, the indication information 1 may include an index of an initial activation frequency domain resource pair and/or an index of a default frequency domain resource pair, where the index of the initial activation frequency domain resource pair is used to indicate a target frequency domain resource pair in a scenario of switching from the initial BWP to other frequency domain resource pairs, and the index of the default frequency domain resource pair is used to indicate a target frequency domain resource pair in a scenario of switching the frequency domain resource pair when the resource back-off condition is satisfied. At this time, the indication information 1 is carried in RRC signaling.

If the indication information 1 does not indicate the default frequency domain resource pair, the UE11 may fall back from the source frequency domain resource pair to the entire default BWP pair. Data is then transmitted on the first time unit using either the upstream BWP or the downstream BWP of the default BWP pair in accordance with the transmission direction of the first time unit. The default BWP pair and the indication information 1 may be both carried in RRC signaling or may be carried in different messages, which is not limited by the present application.

If the RRC signaling does not configure the default BWP pair, the UE11 may fall back from the source frequency domain resource pair onto the initial BWP pair. Data is then transmitted on the first time unit using either the upstream BWP or the downstream BWP of the initial BWP pair in accordance with the transmission direction of the first time unit.

In a specific embodiment, the indication information 1 may be carried by RRC signaling. For example, in addition to the first configuration information described in the foregoing embodiment, the configuration IE of the frequency domain resources newly added under the BWP uplink common message or the BWP uplink dedicated message may further indicate an index of the initially activated uplink frequency domain resources, and the configuration IE of the frequency domain resources newly added under the BWP downlink common message or the BWP downlink dedicated message may further indicate an index of the initially activated downlink frequency domain resources, where the indicated index of the initially activated uplink downlink frequency domain resources is the same (i.e., indicates the initially activated frequency domain resource pair), so that the initially activated frequency domain resource pair is configured through RRC signaling.

For another example, in addition to the first configuration information described in the foregoing embodiment, an index of a default uplink frequency domain resource may be indicated in the configuration IE of the frequency domain resource newly added under the BWP uplink common message or the BWP uplink dedicated message, and an index of a default downlink frequency domain resource may be indicated in the configuration IE of the frequency domain resource newly added under the BWP downlink common message or the BWP downlink dedicated message, where the index of the indicated default uplink and downlink frequency domain resource is the same (i.e., the default frequency domain resource pair is indicated), so that the default frequency domain resource pair is configured through RRC signaling.

For another example, in addition to the first configuration information described in the foregoing embodiment, the configuration IE of the newly-added frequency domain resource under the BWP uplink common message or the BWP uplink dedicated message may further indicate an index of the initially-activated uplink frequency domain resource and an index of the default uplink frequency domain resource, and the configuration IE of the newly-added frequency domain resource under the BWP downlink common message or the BWP downlink dedicated message may also indicate an index of the initially-activated downlink frequency domain resource and an index of the default downlink frequency domain resource, where the indicated index of the initially-activated uplink and downlink frequency domain resource is the same (i.e., indicates the initially-activated frequency domain resource pair), and the indicated index of the default uplink and downlink frequency domain resource is the same (i.e., indicates the default frequency domain resource pair), so that the initially-activated frequency domain resource pair and the default frequency domain resource pair are configured through RRC signaling.

In a first exemplary application scenario, referring to fig. 4, assume that the RRC signaling configuration initially activates BWP pair to BWP pair 2, the default BWP pair to BWP pair 1, the default frequency domain resource pair on BWP pair 1, and the initially activated frequency domain resource pair on BWP pair 2 are as shown in the figure. In fig. 4, the abscissa indicates time (t), and the ordinate indicates frequency (f).

After initial access, UE11 may switch from initial BWP to uplink and downlink frequency domain resources on BWP pair 2.

After the handover is completed, UE11 may start the inactivity timer, and when the inactivity timer expires, UE11 switches from the initially activated frequency domain resource pair to the default frequency domain resource pair on BWP pair 1.

During the transmission of data by UE11 using frequency domain resources on BWP pair 2, the inactivity timer may be reset (reset) due to the receipt of new indication information (denoted as indication information 2). The indication information 2 may be used to dynamically indicate an index of the frequency domain resource pair, and a specific implementation of dynamically switching the frequency domain resource pair based on the indication information 2 will be described in detail with reference to fig. 5 to 8.

In a specific embodiment, the indication information 2 may be carried by downlink control information (Downlink Control Information, abbreviated as DCI) to indicate an index of a frequency domain resource pair for the next data transmission. For example, a frequency domain resource pair indication field (indicator) may be added to the DCI to indicate an index of a frequency domain resource pair to which handover is required. And the frequency domain resource pair corresponding to the index of the frequency domain resource pair dynamically indicated in the DCI is one of the at least one frequency domain resource pair.

Further, S105 may include the steps of: and switching from the source frequency domain resource pair to a frequency domain resource pair corresponding to an index of the frequency domain resource pair indicated by the indication information 2, wherein the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair indicated by the indication information 2.

In a specific embodiment, the frequency domain resource pair indicated by the indication information 2 and the source frequency domain resource pair may belong to the same BWP pair. That is, the switching of the frequency domain resource pair triggered by the indication information 2 is performed within the same BWP.

Specifically, the DCI may include a BWP indication field and a frequency domain resource pair indication field, and if the index of a BWP pair in the BWP indication field and the index of a BWP pair in which a source frequency domain resource pair is located are the same, it may be determined that the present handover is to handover the frequency domain resource pair within the same BWP pair without handover of the BWP pair. Alternatively, the DCI may include only the frequency domain resource pair indication domain, and the UE11 may determine that the present handover is performed within the same BWP pair.

For example, referring to fig. 5, the ue11 is configured with a frequency domain resource pair 0 and a frequency domain resource pair 1 of the BWP pair 0, and currently transmits data using the frequency domain resource pair 0 of the BWP pair 0. In time slot 0, ue11 receives DCI 0_1, where the K2 value in DCI 0_1 is 3, bwp indicates that the domain is unchanged, and the frequency domain resource pair indicates that the domain display frequency domain resource pair needs to be switched from frequency domain resource pair 0 to frequency domain resource pair 1. Then UE11 switches to frequency domain resource pair 1 in K2 slots of the slot where DCI 0_1 is received and performs uplink transmission on the uplink frequency domain resource in frequency domain resource pair 1. K2 represents a time interval from receiving DCI to uplink transmission of a physical uplink shared channel (Physical Uplink Shared Channel, abbreviated PUSCH). At this time, the first time unit in S103 may be slot 3.

For another example, referring to fig. 6, the ue11 is configured with frequency domain resource pair 0 and frequency domain resource pair 1 of BWP pair 0, and currently transmits data using frequency domain resource pair 0 of BWP pair 0. In time slot 0, ue11 receives DCI1_1, and where K0 is 3, bwp indicates that the domain is unchanged, and the frequency domain resource pair indicates that the frequency domain resource pair needs to be switched from frequency domain resource pair 0 to frequency domain resource pair 1. Then UE11 switches to frequency domain resource pair 1 in K0 slots of the slot in which DCI1_1 is received and performs downlink transmission on the downlink frequency domain resource in frequency domain resource 1. K0 represents a time interval from receiving DCI to receiving a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH for short). At this time, the first time unit in S103 may be slot 3.

In a specific embodiment, the frequency domain resource pair indicated by the indication information 2 and the source frequency domain resource pair may belong to different BWP pairs. That is, the switching of the frequency domain resource pair triggered by the indication information 2 includes switching of the BWP pair and switching of the frequency domain resource pair.

Specifically, the DCI may include a BWP indication field and a frequency domain resource pair indication field, and if an index of a BWP pair indicated by the BWP indication field is different from an index of a BWP pair where a source frequency domain resource pair is located, it may be determined that the present handover needs to be performed across the BWP pair.

For example, referring to fig. 7, the ue11 is configured with a frequency domain resource pair 0 and a frequency domain resource pair 1 of BWP pair 0, and currently transmits data using the frequency domain resource pair 0 of BWP pair 0. In time slot 0, ue11 receives DCI0_1 at downlink frequency domain resource 0 of BWP pair 0, where BWP indicated by the BWP indicated domain is BWP1, and the frequency domain resource pair indicated by the frequency domain is frequency domain resource pair 2, where frequency domain resource pair 2 is frequency domain resource pair 2 on BWP indicated domain BWP pair 1. UE11 switches to frequency domain resource pair 2 of BWP pair 1 within K2 slots of the slot where DCI0_1 is received and performs uplink transmission on uplink frequency domain resource 2 of frequency domain resource pair 2. At this time, the first time unit in S103 may be slot 3.

For another example, referring to fig. 8, the ue11 is configured with a frequency domain resource pair 0 and a frequency domain resource pair 1 of BWP pair 0, and currently transmits data using the frequency domain resource pair 0 of BWP pair 0. In time slot 0, ue11 receives DCI1_1 at downlink frequency domain resource 0 of BWP pair 0, where the BWP indication field is BWP1 and the frequency domain resource pair indication field is frequency domain resource pair 2, where frequency domain resource pair 2 is frequency domain resource pair 2 on BWP pair 1 indicated by the BWP indication field. Then UE11 switches to frequency domain resource pair 2 in K0 slots of the slot in which DCI1_1 is received and performs downlink transmission on the downlink frequency domain resource in frequency domain resource pair 2. At this time, the first time unit in S103 may be slot 3.

In a specific embodiment, an information field (information field) used for indicating scheduling resources in the DCI may be adjusted according to a bandwidth difference between a source frequency domain resource pair and a frequency domain resource pair indicated by the indication information.

For example, when the bandwidth of the source frequency domain resource pair is smaller than the bandwidth of the frequency domain resource pair indicated by the indication information, the size of the information domain in the DCI transmitted in the previous time is smaller than the information domain required for the present transmission, and zero padding may be performed on the information domain to the required information domain size. Assuming that the information field indicating the last transmitted DCI of the source frequency domain resource pair is 5 bits, for example 10000, when the bandwidth becomes large and the information field becomes large to 6 bits, the high order bits of the information field of the DCI are complemented with 0 and become 010000.

For another example, when the bandwidth of the source frequency domain resource pair is greater than the bandwidth of the frequency domain resource pair indicated by the indication information, the size of the information domain in the DCI transmitted in the previous time is greater than the information domain required for the present transmission, and at this time, the required information domain size may be intercepted from the lowest bit of the information domain as the information domain value. Assuming that the information field indicating the DCI of the previous transmission of the source frequency domain resource pair is 6 bits, for example 111111, if the information field indicating the DCI of the frequency domain resource pair is only 5 bits, the lower information field is reserved by 5 bits, and the result is 11111.

In a specific embodiment, with continued reference to fig. 3, the network device 12 may further perform S106, while or after performing S104, to send second configuration information to the UE11, where the second configuration information is used to configure a transmission direction of each time unit in the first period, and the first time unit belongs to the first period. The first period may be configured by a UE-level slot. The first time unit may be any time unit in the first period.

In response to receiving the second configuration information, in S103, the UE11 may select a correct uplink frequency domain resource or downlink frequency domain resource for transmission according to the transmission direction of the first time unit indicated by the second configuration information.

For example, if the second configuration information indicates that the transmission direction of the first time unit is uplink, in S103, the UE11 selects an uplink frequency domain resource in the frequency domain resource pair corresponding to the first time unit configured by the first configuration information to send data to the network device 12.

At this time, the network device 12 also receives the data sent by the UE11 according to the first configuration information and the second configuration information in the uplink frequency domain resource in the frequency domain resource pair corresponding to the first time unit. Meanwhile, the network device 12 may also transmit data to other UEs on the pair of frequency domain resources corresponding to the first time unit configured to the other UEs.

For another example, if the second configuration information indicates that the transmission direction of the first time unit is downlink, in S103, the UE11 selects downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit configured by the first configuration information to receive data sent by the network device 12.

At this time, the network device 12 also transmits data to the UE11 according to the first configuration information and the second configuration information in the downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit. Meanwhile, the network device 12 may also transmit data to other UEs on the pair of frequency domain resources corresponding to the first time unit configured to the other UEs.

Therefore, by adopting the embodiment, the UE can accurately acquire the frequency domain resource range of uplink and downlink transmission, so that the UE can accurately determine the uplink (or downlink) frequency domain resource corresponding to the time unit by using the transmission direction of the current time unit (namely the first time unit) to carry out uplink (or downlink) transmission, thereby avoiding interference with other UE or network equipment. Specifically, the UE may determine a specific frequency domain location of each frequency domain resource pair configured to the UE by the network device based on the first configuration information. Further, when data transmission is actually performed on the first time unit, according to the first configuration information and in combination with the transmission direction of the first time unit, uplink frequency domain resources or downlink frequency domain resources configured to the UE by the network device in the first time unit are selected to transmit data. Therefore, the frequency domain resources for data transmission of the UE can be precisely limited to the frequency domain resources which are configured to the UE by the network and accord with the current transmission direction, so that different UEs can be ensured to perform data transmission on the respectively configured specific frequency domain resources, and interference is avoided when the network equipment and the UE perform transmission.

Further, by actively sending the first configuration information, the network device in this embodiment indicates the frequency domain resource range for uplink and downlink transmission to each managed UE, so that each UE can accurately determine uplink (or downlink) transmission of the uplink (or downlink) frequency domain resource corresponding to the current time unit (i.e., the first time unit) by using the transmission direction of the current time unit, thereby avoiding interference generated in data transmission between different UEs or between UEs and itself. Specifically, the network device may indicate a specific frequency domain location of each frequency domain resource pair configured to the UE based on the first configuration information. Further, when data transmission is actually performed in the first time unit, according to the first configuration information configured to each UE and in combination with the transmission direction of the first time unit, uplink frequency domain resources or downlink frequency domain resources configured to each UE in the first time unit are selected to transmit data with each UE. Therefore, the frequency domain resources for data transmission between the network equipment and the specific UE can be precisely limited to the frequency domain resources which are configured for the specific UE and accord with the current transmission direction, so that the data transmission between different UEs on the respectively configured specific frequency domain resources is ensured, and the interference between the network equipment station and the UE and the interference between the UE and the UE in the data transmission can be avoided.

Fig. 9 is a schematic structural diagram of a data transmission device (denoted as a data transmission device 2) according to an embodiment of the present application. It will be appreciated by those skilled in the art that the data transmission device 2 of the present embodiment may be used to implement the methods described in the embodiments described above with reference to fig. 1 to 8. The data transmission device 2 may be the UE above.

Specifically, referring to fig. 9, the data transmission apparatus 2 may include: a receiving module 21, configured to receive first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap; and a transmission module 22, configured to select an uplink frequency domain resource or a downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmit data in the first time unit.

In a specific embodiment, the uplink frequency domain resource is one or more segments of frequency domain resources in the uplink partial bandwidth BWP, and the downlink frequency domain resource is one or more segments of frequency domain resources in the downlink BWP.

In a specific embodiment, the first configuration information includes at least one of: for each uplink BWP, the frequency domain location of each uplink frequency domain resource in the uplink BWP; for each downlink BWP, the frequency domain location of each downlink frequency domain resource in the downlink BWP.

In a specific embodiment, the first configuration information further includes at least one of the following: for each uplink BWP, an index of each uplink frequency domain resource in the uplink BWP; for each downlink BWP, an index of each downlink frequency domain resource in the downlink BWP.

In a specific embodiment, the index of the uplink frequency domain resource and the index of the downlink frequency domain resource in the same frequency domain resource pair are the same.

In a specific embodiment, the at least one frequency domain resource pair is a frequency domain resource pair, and the frequency domain resource pair corresponding to the first time unit is the at least one frequency domain resource pair.

In one embodiment, the data transmission device 2 further includes: an indication information receiving module (not shown) is configured to receive indication information, where the indication information is used to determine a frequency domain resource pair for performing data transmission in the first time unit.

In a specific embodiment, the indication information includes an index of an initially activated frequency domain resource pair, where the initially activated frequency domain resource pair is one of the at least one frequency domain resource pair, and the data transmission apparatus 2 further includes: a first switching module (not shown) is configured to switch from initial BWP to an initial active frequency domain resource pair corresponding to an index of the initial active frequency domain resource pair on an initial active BWP pair after initial access before the uplink frequency domain resource or downlink frequency domain resource is selected from the frequency domain resource pair corresponding to a first time unit to transmit data, where the frequency domain resource pair corresponding to the first time unit is the initial active frequency domain resource pair.

In a specific embodiment, the indication information includes an index of a default frequency domain resource pair, where the default frequency domain resource pair is one of the at least one frequency domain resource pair, and the data transmission apparatus 2 further includes: a second switching module (not shown), configured to switch from a source frequency domain resource pair to a default frequency domain resource pair corresponding to an index of the default frequency domain resource pair when a resource back-off condition is met before the uplink frequency domain resource or the downlink frequency domain resource is selected in the frequency domain resource pair corresponding to the first time unit to transmit data, where the frequency domain resource pair corresponding to the first time unit is the default frequency domain resource pair.

In a specific embodiment, the indication information is carried by RRC signaling.

In a specific embodiment, the resource back-off condition includes an inactivity timer timeout.

In a specific embodiment, the indication information is used to dynamically indicate an index of the frequency domain resource pair, and the data transmission apparatus 2 further includes: a third switching module (not shown) is configured to switch from a source frequency domain resource pair to a frequency domain resource pair corresponding to an index of the frequency domain resource pair indicated by the indication information before the uplink frequency domain resource or the downlink frequency domain resource is selected from the frequency domain resource pair corresponding to the first time unit to transmit data, where the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair indicated by the indication information.

In a specific embodiment, the frequency domain resource pair indicated by the indication information and the source frequency domain resource pair belong to the same BWP pair or different BWP pairs.

In a specific embodiment, the indication information is carried by DCI, and an information field for indicating scheduling resources in the DCI is adjusted according to a bandwidth difference between the source frequency domain resource pair and a frequency domain resource pair indicated by the indication information.

In one embodiment, the data transmission device 2 further includes: and a second configuration information receiving module (not shown) configured to receive second configuration information, where the second configuration information is used to configure a transmission direction of each time unit in a first period, and the first time unit belongs to the first period.

In a specific embodiment, the first period is configured by a UE-level slot of a user equipment.

In a specific embodiment, the first configuration information is carried through RRC signaling.

For more details on the working principle and the working manner of the data transmission device 2, reference may be made to the related descriptions in fig. 1 to 8, which are not repeated here.

In a specific implementation, the data transmission device 2 may correspond to a Chip with a data transmission function in the UE, or a Chip with a data processing function, such as a System-On-a-Chip (SOC), a baseband Chip, or the like; or corresponds to a chip module comprising a chip with a data transmission function in the UE; or corresponds to a chip module having a data processing function chip or corresponds to the UE.

Fig. 10 is a schematic structural diagram of another data transmission device (denoted as a data transmission device 3) according to an embodiment of the present application. It will be appreciated by those skilled in the art that the data transmission device 3 according to the present embodiment may be used to implement the method described in the embodiments described above with reference to fig. 1 to 8. The data transmission means 3 may be the network device above.

Specifically, referring to fig. 10, the data transmission apparatus 3 may include: a transmitting module 31, configured to transmit first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap; and a transmission module 32, configured to select an uplink frequency domain resource or a downlink frequency domain resource in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmit data in the first time unit.

In one embodiment, the data transmission device 3 further includes: and the indication information sending module (not shown) is used for sending indication information, wherein the indication information is used for determining a frequency domain resource pair for data transmission in the first time unit.

In a specific embodiment, the indication information includes an index of an initially activated frequency domain resource pair, where the initially activated frequency domain resource pair is one of the at least one frequency domain resource pair, and the data transmission apparatus 3 further includes: a first switching module (not shown) is configured to switch from initial BWP to an initial active frequency domain resource pair corresponding to an index of the initial active frequency domain resource pair on the initial active BWP pair after initial access before the uplink frequency domain resource or the downlink frequency domain resource is selected from the frequency domain resource pair corresponding to the first time unit to transmit data, where the frequency domain resource pair corresponding to the first time unit is the initial active frequency domain resource pair.

In a specific embodiment, the indication information includes an index of a default frequency domain resource pair, where the default frequency domain resource pair is one of the at least one frequency domain resource pair, and the data transmission apparatus 3 further includes: a second switching module (not shown), configured to switch from a source frequency domain resource pair to a default frequency domain resource pair corresponding to an index of the default frequency domain resource pair when a resource back-off condition is met before the uplink frequency domain resource or the downlink frequency domain resource is selected in the frequency domain resource pair corresponding to the first time unit to transmit data, where the frequency domain resource pair corresponding to the first time unit is the default frequency domain resource pair.

In a specific embodiment, the indication information is used to dynamically indicate an index of the frequency domain resource pair, and the data transmission apparatus 3 further includes: a third switching module (not shown) is configured to switch from a source frequency domain resource pair to a frequency domain resource pair corresponding to an index of the frequency domain resource pair indicated by the indication information before the uplink frequency domain resource or the downlink frequency domain resource is selected from the frequency domain resource pair corresponding to the first time unit to transmit data, where the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair indicated by the indication information.

In one embodiment, the data transmission device 3 further includes: and a second configuration information sending module (not shown) configured to send second configuration information, where the second configuration information is used to configure a transmission direction of each time unit in a first period, and the first time unit belongs to the first period.

For more details on the working principle and the working manner of the data transmission device 3, reference may be made to the related descriptions in fig. 1 to 8, which are not repeated here.

In a specific implementation, the above-mentioned data transmission device 3 may correspond to a Chip with a data transmission function in a network device, or a Chip with a data processing function, such as a System-On-a-Chip (SOC), a baseband Chip, etc.; or corresponds to a chip module which comprises a chip with a data transmission function in the network equipment; or corresponds to a chip module having a chip with a data processing function or corresponds to a network device.

In a specific implementation, regarding each apparatus and each module/unit included in each product described in the above embodiments, it may be a software module/unit, or a hardware module/unit, or may be a software module/unit partially, or a hardware module/unit partially.

For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

Embodiments of the present application also provide a computer readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, which when executed by a processor causes the steps of the data transmission method provided by the embodiments shown in fig. 1 to 8 described above to be performed.

In the embodiment of the present application, the storage medium may include a non-volatile memory (non-volatile) or a non-transient memory, and may also include an optical disc, a mechanical hard disc, a solid state hard disc, and the like.

In particular, referring to fig. 11, the data transmission device may include a processor 41, the processor 41 being coupled to a memory 42, the memory 42 may be located within the device or may be located outside the device. Optionally, a transceiver 43 is also included. The memory 42, the processor 41 and the transceiver 43 may be connected by a communication bus. The memory 42 stores a computer program executable on the processor 41, and the steps in the data transmission method provided in the embodiments shown in fig. 1 to 8 are executed by the processor 41 when the processor 41 executes the computer program, and the transceiver 43 may perform the above actions of transmitting and/or receiving under the control of the processor 41. The data transmission device may be the above network equipment, or may be UE.

In the embodiment of the present application, the memory 42 includes a non-volatile memory (non-volatile) or a non-transient memory, and may also include an optical disc, a mechanical hard disc, a solid state hard disc, and the like.

In an embodiment of the present application, the processor 41 may be a central processing unit (central processing unit, CPU), and the processor 41 may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, 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.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs related hardware, the program may be stored on a computer readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, etc.

The description of embodiments of the present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (means) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In the embodiments of the present application, the term "at least one" refers to one or more, and the term "a plurality" refers to two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

In embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

The embodiments of the present application are described in a progressive manner, and the same and similar parts of the embodiments are all referred to each other, and each embodiment is mainly described in the differences from the other embodiments. In particular, for the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments in part.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as a combination of electronic hardware, computer software, and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the apparatus, the apparatus and the units described above may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the application, and the scope of the application should be assessed accordingly to that of the appended claims.

Claims

1. A data transmission method, comprising:

receiving first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap;

and selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmitting data on the first time unit.

2. The method of claim 1, wherein the uplink frequency domain resource is one or more frequency domain resources in an uplink fractional bandwidth BWP, and the downlink frequency domain resource is one or more frequency domain resources in a downlink BWP.

3. The method according to claim 1 or 2, wherein the first configuration information comprises at least one of:

for each uplink BWP, the frequency domain location of each uplink frequency domain resource in the uplink BWP;

for each downlink BWP, the frequency domain location of each downlink frequency domain resource in the downlink BWP.

4. The method of claim 3, wherein the first configuration information further comprises at least one of:

for each uplink BWP, an index of each uplink frequency domain resource in the uplink BWP;

for each downlink BWP, an index of each downlink frequency domain resource in the downlink BWP.

5. The method of claim 4, wherein the index of the uplink frequency domain resource and the index of the downlink frequency domain resource in the same frequency domain resource pair are the same.

6. The method according to any one of claims 1 to 5, wherein the at least one frequency domain resource pair is one frequency domain resource pair, and the frequency domain resource pair corresponding to the first time unit is the at least one frequency domain resource pair.

7. The method according to any one of claims 1 to 6, further comprising: and receiving indication information, wherein the indication information is used for determining a frequency domain resource pair for data transmission in the first time unit.

8. The method of claim 7, wherein the indication information comprises an index of an initially activated frequency domain resource pair, the initially activated frequency domain resource pair being one of the at least one frequency domain resource pair, the method further comprising, prior to the selecting of either uplink frequency domain resources or downlink frequency domain resources to transmit data in the frequency domain resource pair corresponding to the first time unit:

after initial access, switching from initial BWP to initial activation frequency domain resource pair corresponding to the index of the initial activation frequency domain resource pair on the initial activation BWP pair, wherein the frequency domain resource pair corresponding to the first time unit is the initial activation frequency domain resource pair.

9. The method according to claim 7 or 8, wherein the indication information includes an index of a default frequency domain resource pair, the default frequency domain resource pair being one of the at least one frequency domain resource pair, and before the selecting the uplink frequency domain resource or the downlink frequency domain resource to transmit data in the frequency domain resource pair corresponding to the first time unit, the method further comprises:

and under the condition that the resource backspacing condition is met, switching from a source frequency domain resource pair to a default frequency domain resource pair corresponding to an index of the default frequency domain resource pair, wherein the frequency domain resource pair corresponding to the first time unit is the default frequency domain resource pair.

10. The method according to claim 8 or 9, characterized in that the indication information is carried by radio resource control, RRC, signalling.

11. The method of claim 9, wherein the resource backoff condition comprises an inactivity timer timeout.

12. The method of claim 7, wherein the indication information is used to dynamically indicate an index of a frequency domain resource pair, and wherein before the selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit to transmit data, the method further comprises:

and switching from the source frequency domain resource pair to a frequency domain resource pair corresponding to an index of the frequency domain resource pair indicated by the indication information, wherein the frequency domain resource pair corresponding to the first time unit is the frequency domain resource pair indicated by the indication information.

13. The method according to claim 12, wherein the pair of frequency domain resources indicated by the indication information and the pair of source frequency domain resources belong to the same BWP pair or different BWP pairs.

14. The method according to claim 12 or 13, characterized in that the indication information is carried by downlink control information, DCI, an information field in the DCI for indicating scheduling resources is adjusted according to a bandwidth difference between the source frequency domain resource pair and a frequency domain resource pair indicated by the indication information.

15. The method according to any one of claims 1 to 14, further comprising: and receiving second configuration information, wherein the second configuration information is used for configuring the transmission direction of each time unit in a first time period, and the first time unit belongs to the first time period.

16. The method of claim 15, wherein the first period of time is configured by a user equipment, UE, level slot.

17. The method according to any of claims 1 to 16, wherein the first configuration information is carried by RRC signaling.

18. A data transmission apparatus, comprising:

the receiving module is used for receiving first configuration information, the first configuration information is used for configuring the frequency domain position of at least one frequency domain resource pair, each frequency domain resource pair comprises an uplink frequency domain resource and a downlink frequency domain resource, the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are not overlapped;

and the transmission module is used for selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of the first time unit, and transmitting data on the first time unit.

19. A data transmission method, comprising:

transmitting first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap;

and selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit according to the transmission direction of each terminal device on the first time unit, and transmitting data on the first time unit.

20. The method of claim 19, wherein the uplink frequency domain resource is one or more frequency domain resources in an uplink fractional bandwidth BWP, and wherein the downlink frequency domain resource is one or more frequency domain resources in a downlink BWP.

21. The method according to claim 19 or 20, wherein the first configuration information comprises at least one of:

22. The method of claim 21, wherein the first configuration information further comprises at least one of:

23. The method of claim 22 wherein the index of the uplink frequency domain resource and the index of the downlink frequency domain resource in the same frequency domain resource pair are the same.

24. The method according to any of claims 19 to 23, wherein said at least one frequency domain resource pair is one frequency domain resource pair and said frequency domain resource pair corresponding to said first time unit is said at least one frequency domain resource pair.

25. The method according to any one of claims 19 to 24, further comprising:

and sending indication information, wherein the indication information is used for determining a frequency domain resource pair for data transmission in the first time unit.

26. The method of claim 25, wherein the indication information comprises an index of an initially activated frequency domain resource pair, the initially activated frequency domain resource pair being one of the at least one frequency domain resource pair, the method further comprising, prior to the selecting of uplink frequency domain resources or downlink frequency domain resources to transmit data in the frequency domain resource pair corresponding to the first time unit:

27. The method of claim 25 or 26, wherein the indication information includes an index of a default frequency domain resource pair, the default frequency domain resource pair being one of the at least one frequency domain resource pair, and wherein prior to the selecting uplink frequency domain resources or downlink frequency domain resources in the frequency domain resource pair corresponding to the first time unit to transmit data, the method further comprises:

28. The method according to claim 26 or 27, characterized in that the indication information is carried by radio resource control, RRC, signalling.

29. The method of claim 27, wherein the resource backoff condition comprises an inactivity timer timeout.

30. The method of claim 25, wherein the indication information is used to dynamically indicate an index of a pair of frequency domain resources, and wherein before the selecting the uplink frequency domain resource or the downlink frequency domain resource in the pair of frequency domain resources corresponding to the first time unit to transmit data, the method further comprises:

31. The method of claim 30, wherein the indicated frequency domain resource pair and the source frequency domain resource pair indicated by the indication information belong to a same BWP pair or different BWP pairs.

32. The method according to claim 30 or 31, characterized in that the indication information is carried by downlink control information, DCI, an information field in the DCI for indicating scheduling resources is adjusted according to a bandwidth difference between the source frequency domain resource pair and a frequency domain resource pair indicated by the indication information.

33. The method according to any one of claims 19 to 32, further comprising: and sending second configuration information, wherein the second configuration information is used for configuring the transmission direction of each time unit in a first time period, and the first time unit belongs to the first time period.

34. The method of claim 33, wherein the first period of time is configured by a user equipment, UE, level slot.

35. The method according to any of claims 19 to 34, wherein the first configuration information is carried by RRC signaling.

36. A data transmission apparatus, comprising:

a sending module, configured to send first configuration information, where the first configuration information is used to configure a frequency domain position of at least one frequency domain resource pair, where each frequency domain resource pair includes an uplink frequency domain resource and a downlink frequency domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair are two frequency domain resources on the same time domain resource, and the uplink frequency domain resource and the downlink frequency domain resource in the same frequency domain resource pair do not overlap;

37. A computer readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the method of any of claims 1 to 17 or any of claims 19 to 35.

38. A data transmission device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor executes the steps of the method according to any of claims 1 to 17 or 19 to 35 when the computer program is executed.