CN115866757A

CN115866757A - Method and device for indicating data transmission direction and communication device

Info

Publication number: CN115866757A
Application number: CN202111123850.7A
Authority: CN
Inventors: 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2023-03-28
Also published as: WO2023045166A1

Abstract

A method and a device for indicating a data transmission direction and a communication device are provided, wherein the method comprises the following steps: configuring the transmission direction of at least one sub-band in the partial bandwidth, wherein the transmission direction is independently configured between the sub-bands as uplink or downlink; configuring sub-band direction indication information, wherein the sub-band direction indication information is used for indicating the transmission direction of each sub-band; and transmitting the sub-band direction indication information. The invention can adapt to flexible and changeable uplink and downlink service scenes and fill the blank in the prior art.

Description

Method and device for indicating data transmission direction and communication device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating a data transmission direction, a readable storage medium, and a communication apparatus.

Background

In the existing full-duplex mode, bidirectional transmission (a → B and B → a) of signals can be performed simultaneously (instantaneously), and uplink or downlink data can be transmitted in different partial Bandwidths (BWPs).

In the prior art, only unidirectional transmission is supported in a single fractional bandwidth, that is, each subband in the single fractional bandwidth uses the same transmission direction.

However, in order to adapt to flexible uplink and downlink service scenarios, the transmission directions between the sub-bands in a single partial bandwidth may not be completely the same, and there is no discussion about this service scenario.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a method and a device for indicating a data transmission direction, a readable storage medium and a communication device, which can adapt to flexible and changeable uplink and downlink service scenes and fill the blank in the prior art.

To solve the foregoing technical problem, an embodiment of the present invention provides a method for indicating a data transmission direction, including: configuring the transmission direction of at least one sub-band in the partial bandwidth, wherein the transmission direction is independently configured between the sub-bands to be uplink or downlink; configuring sub-band direction indication information, wherein the sub-band direction indication information is used for indicating the transmission direction of each sub-band; and transmitting the sub-band direction indication information.

Optionally, configuring the transmission direction of at least one sub-band in the partial bandwidth includes: configuring the transmission directions of other sub-bands except the first sub-band in the partial bandwidth; wherein the transmission direction of the first subband is a predefined transmission direction.

Optionally, in the partial bandwidth, a first guard sub-band is added between adjacent sub-bands; the configured subband direction indicating information includes: determining the first protection sub-band between adjacent sub-bands with different transmission directions, and recording as an effective protection sub-band; the subband direction indicating information comprises indicating information of each effective guard subband.

Optionally, the sequence number of the effective guard sub-band is used as the indication information of the effective guard sub-band; or, the sequence number of the sub-band which is adjacent to the effective protection sub-band and the frequency domain resource of which is smaller than that of the effective protection sub-band is used as the indication information of the effective protection sub-band; or, the sequence number of the sub-band which is adjacent to the effective protection sub-band and the frequency domain resource of which is larger than the effective protection sub-band is used as the indication information of the effective protection sub-band.

Optionally, in the partial bandwidth, a second guard sub-band is added between adjacent sub-bands with different transmission directions; the configured subband direction indicating information includes: and configuring the sub-band direction indication information to comprise the indication information of each second protection sub-band.

Optionally, the sequence number of the second guard sub-band is used as the indication information of the second guard sub-band; or, the sequence number of the sub-band which is adjacent to the second guard sub-band and whose frequency domain resource is smaller than the second guard sub-band is used as the indication information of the second guard sub-band; or, the sequence number of the sub-band which is adjacent to the second guard sub-band and whose frequency domain resource is greater than the second guard sub-band is used as the indication information of the second guard sub-band.

Optionally, the signaling for sending the subband direction indicating information is selected from: group-generic downlink indication information DCI, terminal-specific DCI, radio resource control RRC, medium access control-control element MAC-CE.

Optionally, before configuring the transmission direction of at least a part of the sub-band in the partial bandwidth, the method further includes: determining that a change in a transmission direction of at least one sub-band in the portion of bandwidth is required.

Optionally, determining that the transmission direction of at least one sub-band in the partial bandwidth needs to be changed includes: determining the number of sub-bands needing uplink transmission according to an uplink Buffer Status Report (BSR) of a terminal; and if the number of the sub-bands needing to be subjected to uplink transmission is not consistent with the number of the sub-bands with the uplink transmission direction in the partial bandwidth, determining that the transmission direction of at least one sub-band in the partial bandwidth needs to be changed.

Optionally, configuring the transmission direction of at least one of the sub-bands in the partial bandwidth includes: configuring that the sub-bands with the transmission directions of uplink are adjacent, and configuring that the sub-bands with the transmission directions of downlink are adjacent; wherein only two adjacent sub-bands differ in transmission direction.

Optionally, before sending the subband direction indicating information, the method further includes: determining whether a Physical Uplink Shared Channel (PUSCH) to be reported by a terminal and/or a downlink shared physical channel (PDSCH) to be sent exist; if so, configuring a sub-band for transmitting PUSCH and/or PDSCH; configuring a frequency domain resource allocation domain, wherein the frequency domain resource allocation domain is used for indicating the starting point and the length of a PUSCH in a sub-band to which the PUSCH belongs or indicating the starting point and the length of the PDSCH in the sub-band to which the PDSCH belongs; the transmitting the subband direction indicating information includes: and when the sub-band direction indication information is sent, sending the frequency domain resource allocation domain together.

Optionally, configuring the frequency domain resource allocation domain includes: a frequency domain resource allocation domain is configured for each sub-band used for transmitting PUSCH and/or PDSCH.

Optionally, configuring the frequency domain resource allocation domain includes: if only PUSCHs to be reported by the terminal exist, configuring the frequency domain resource allocation domain for uplink sub-bands for each transmission direction; if only PDSCH to be sent exists, configuring the frequency domain resource allocation domain for a downlink sub-band for each transmission direction; and if the PUSCH to be reported and the PDSCH to be sent of the terminal exist at the same time, configuring the frequency domain resource allocation domain for all sub-bands.

Optionally, before configuring the transmission direction of at least a part of the sub-band in the partial bandwidth, the method further includes: determining the state of the enabling parameter as enabling; wherein the enabling parameter is used for indicating whether to configure the transmission direction of at least one part of the sub-band in the partial bandwidth.

Optionally, before determining that the state of the enabling parameter is enabled, the method further includes: if the residual energy of the terminal is larger than or equal to a first threshold value, setting the state of the enabling parameter as enabling; and if the residual energy of the terminal is less than the first threshold value, setting the state of the enabling parameter as not-enabled.

To solve the foregoing technical problem, an embodiment of the present invention provides a method for indicating a data transmission direction, including: receiving sub-band direction indication information, wherein the sub-band direction indication information is used for indicating that the transmission direction of each sub-band in a part of bandwidth is uplink or downlink; determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information; wherein, the transmission direction is configured to be uplink or downlink independently between each sub-band.

Optionally, in the partial bandwidth, a transmission direction of the first sub-band is a predefined transmission direction.

Optionally, a first protection sub-band is added between adjacent sub-bands, the first protection sub-band located between adjacent sub-bands with different transmission directions is marked as an effective protection sub-band, and the sub-band direction indication information includes indication information of each effective protection sub-band; determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information includes: determining whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as that of the first sub-band according to whether an effective protection sub-band adjacent to the first sub-band exists or not, and determining the transmission direction of the second sub-band; determining whether the transmission direction of an i +1 th sub-band adjacent to an ith sub-band is the same as the transmission direction of the ith sub-band and determining the transmission direction of the i +1 th sub-band according to whether an effective protection sub-band adjacent to the ith sub-band exists or not; wherein i is greater than or equal to 2, and i is a positive integer.

Optionally, the indication information of the effective guard sub-band is a sequence number of the effective guard sub-band; or the indication information of the effective protection sub-band is adjacent to the effective protection sub-band, and the frequency domain resource is smaller than the sequence number of the sub-band of the effective protection sub-band; or, the indication information of the effective guard sub-band is adjacent to the effective guard sub-band, and the frequency domain resource is greater than the sequence number of the sub-band of the effective guard sub-band.

Optionally, a second guard sub-band is added between adjacent sub-bands in different transmission directions, and the sub-band direction indication information includes indication information of each second guard sub-band; determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information includes: determining whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as that of the first sub-band according to whether a second guard sub-band adjacent to the first sub-band exists or not, and determining the transmission direction of the second sub-band; determining whether the transmission direction of an i +1 th sub-band adjacent to an ith sub-band is the same as the transmission direction of the ith sub-band and determining the transmission direction of the i +1 th sub-band according to whether a second protection sub-band adjacent to the ith sub-band exists or not; wherein i is greater than or equal to 2, and i is a positive integer.

Optionally, the indication information of the second guard sub-band is a sequence number of the second guard sub-band; or the indication information of the second guard sub-band is adjacent to the second guard sub-band, and the frequency domain resource is smaller than the sequence number of the sub-band of the second guard sub-band; or, the indication information of the second guard sub-band is a sequence number of a sub-band adjacent to the second guard sub-band and having a frequency domain resource greater than the second guard sub-band.

Optionally, the signaling for receiving the subband direction indicating information is selected from: group common DCI, terminal specific DCI, RRC, MAC-CE.

Optionally, the method further includes: when the sub-band direction indication information is received, receiving and configuring a frequency domain resource allocation domain, wherein the frequency domain resource allocation domain is used for indicating the starting point and the length of a PUSCH in a sub-band to which the PUSCH belongs, or is used for indicating the starting point and the length of the PDSCH in the sub-band to which the PDSCH belongs; and determining the starting point and the length of the PUSCH according to the configured frequency domain resource allocation domain, or determining the starting point and the length of the PDSCH according to the configured frequency domain resource allocation domain.

To solve the above technical problem, an embodiment of the present invention provides an apparatus for indicating a data transmission direction, including: the direction configuration module is used for configuring the transmission direction of at least one sub-band in the partial bandwidth, wherein the transmission direction is independently configured between each sub-band to be uplink or downlink; an indication information configuration module, configured to configure subband direction indication information, where the subband direction indication information is used to indicate a transmission direction of each subband; and the sending module is used for sending the sub-band direction indication information.

To solve the above technical problem, an embodiment of the present invention provides an indicating apparatus for indicating a data transmission direction, including: a receiving module, configured to receive subband direction indication information, where the subband direction indication information is used to indicate that a transmission direction of each subband in a partial bandwidth is uplink or downlink; a transmission direction determining module, configured to determine, according to the subband direction indication information, a transmission direction of each subband in the partial bandwidth; wherein, the transmission direction is configured to be uplink or downlink independently among each sub-band.

To solve the above technical problem, an embodiment of the present invention provides a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the above method for indicating a data transmission direction.

In order to solve the above technical problem, an embodiment of the present invention provides a communication apparatus, including a memory and a processor, where the memory stores a computer program capable of running on the processor, and the processor executes the steps of the method for indicating a data transmission direction when running the computer program.

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

in the embodiment of the present invention, the transmission direction of at least one sub-band in the partial bandwidth is configured, and the sub-band direction indication information is configured and sent, so that the terminal can determine the transmission direction of each sub-band in the partial bandwidth, thereby achieving that the transmission directions of multiple sub-bands are not completely the same at the same time, facilitating adaptation to flexible uplink and downlink service scenarios, and filling up the blank in the prior art.

Further, a first protection sub-band is added between every two adjacent sub-bands, the sub-band direction indication information comprises indication information of each effective protection sub-band, and as the number of the effective protection sub-bands is less than or equal to that of the sub-bands, fewer bits can be adopted to indicate the sub-band direction, and the signaling overhead of the sub-band direction indication information is reduced.

Further, the sub-bands with the configured transmission direction as uplink are adjacent, and the sub-bands with the configured transmission direction as downlink are adjacent, wherein only two adjacent sub-bands have different transmission directions, so that when a second protection sub-band is added between adjacent sub-bands with different transmission directions, the number of the second protection sub-bands can be reduced to only one sub-band, and compared with the case of adding a plurality of protection sub-bands, more frequency domain resources are used for transmitting data.

Further, configuring a frequency domain resource allocation field for indicating a start point and a length of a PUSCH in a sub-band to which a PUSCH belongs or for indicating a start point and a length of a PDSCH in a sub-band to which a PDSCH belongs may cause the terminal to determine the start point and the length of the PUSCH or the start point and the length of the PDSCH.

Further, when the remaining energy of the terminal is greater than or equal to the first threshold, the state of the enabling parameter is set as enabling, and the transmission direction of at least one sub-band in the partial bandwidth is configured, otherwise, the technical scheme that the transmission directions of a plurality of sub-bands are the same at the same time in the prior art is continuously used. Due to the fact that certain energy needs to be consumed by adopting the scheme of the embodiment of the invention, the method and the device are only executed when the residual energy of the terminal is large, and are not executed when the residual energy of the terminal is small, and the method and the device are beneficial to improving the durability of the terminal.

Drawings

Fig. 1 is a flowchart of a method for indicating a data transmission direction according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a first working scenario of uplink and downlink data transmission according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a working scenario of second uplink and downlink data transmission in the embodiment of the present invention;

fig. 4 is a schematic diagram of an operation scenario of a third uplink and downlink data transmission according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an operation scenario of a fourth uplink and downlink data transmission according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a fifth working scenario of uplink and downlink data transmission in the embodiment of the present invention;

fig. 7 is a flowchart of another method for indicating the data transmission direction according to the embodiment of the present invention;

fig. 8 is a schematic structural diagram of an apparatus for indicating a data transmission direction according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another apparatus for indicating data transmission direction in an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

Detailed Description

In the prior art, only unidirectional transmission is supported in a single fractional bandwidth, that is, each sub-band in the single fractional bandwidth adopts the same transmission direction. However, in order to adapt to flexible uplink and downlink service scenarios, the transmission directions between the subbands in a single fractional bandwidth may not be completely the same, and there is no discussion about this service scenario at present.

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

Referring to fig. 1, fig. 1 is a flowchart of a method for indicating a data transmission direction according to an embodiment of the present invention. The method for indicating the data transmission direction may be used for a base station, and may further include steps S11 to S13:

step S11: configuring the transmission direction of at least one sub-band in the partial bandwidth, wherein the transmission direction is independently configured between the sub-bands to be uplink or downlink;

step S12: configuring sub-band direction indication information, wherein the sub-band direction indication information is used for indicating the transmission direction of each sub-band;

step S13: and transmitting the subband direction indication information.

It will be appreciated that in a specific implementation, the method may be implemented in the form of a software program running on a processor integrated within a chip or chip module.

In the specific implementation of step S11, the transmission direction may be configured independently between each sub-band in the partial Bandwidth (BWP).

Referring to fig. 2, fig. 2 is a schematic view of a first working scenario of uplink and downlink data transmission in the embodiment of the present invention.

As shown in fig. 2, a terminal or a base station may implement different uplink/downlink transmissions on different subbands. Sub-band 23 and sub-band 24 occupy the same frequency domain resource, and may be regarded as the same sub-band, and the following description is based on different time T1 and T2.

For example, at time T1, the sub-band 21, the sub-band 22, and the sub-band 23 in the partial bandwidth are transmitted simultaneously, where the transmission direction of the sub-band 21 and the sub-band 23 is downlink, and the transmission direction of the sub-band 22 is uplink. At time T2, the sub-band 21, the sub-band 22, and the sub-band 24 in the partial bandwidth are transmitted simultaneously, where the transmission direction of the sub-band 21 is downlink, and the transmission directions of the sub-band 22 and the sub-band 24 are uplink.

It should be noted that, in the prior art, at the same time, the transmission directions of multiple subbands in the same portion of bandwidth are the same, and taking subband 21, subband 22, and subband 23 in fig. 2 as an example, in the prior art, the transmission directions of subbands 21 to subband 23 need to be all uplink or all downlink.

Further, the step of configuring the transmission direction of at least a part of the sub-band in the partial bandwidth may comprise: configuring the transmission directions of other sub-bands except the first sub-band in the partial bandwidth; wherein the transmission direction of the first subband is a predefined transmission direction.

For example, in fig. 2, a first subband in each partial bandwidth may be defaulted to be fixed downlink transmission or uplink transmission, where the first subband may be a subband with a smallest subband index number, such as subband 21, and a transmission direction of subband 21 may be defaulted to be downlink transmission, for example. Or, default to other subbands with one or more index numbers to be fixed to only perform downlink transmission or uplink transmission.

The subband default to downlink transmission or uplink transmission may be referred to as an anchor subband (anchor subband).

In the embodiment of the present invention, the transmission direction of the first sub-band may be predefined through a communication protocol, and the transmitting end may further notify the receiving end of the transmission direction of the first sub-band through a high-level signaling or a Medium Access Control (MAC) Control Element (CE) or Downlink Control Information (DCI).

With continued reference to fig. 1, in a specific implementation of step S12, subband direction indicating information is configured, where the subband direction indicating information is used to indicate a transmission direction of each subband.

In a specific implementation manner of the embodiment of the present invention, in the partial bandwidth, a first guard sub-band is added between adjacent sub-bands; the configured subband direction indicating information includes: determining the first protection sub-band between adjacent sub-bands with different transmission directions, and recording as an effective protection sub-band; the subband direction indicating information comprises indicating information of each effective guard subband.

Referring to fig. 3, fig. 3 is a schematic view of a working scenario of second uplink and downlink data transmission in the embodiment of the present invention.

In particular, the partial bandwidth may include a sub-band 31, a sub-band 32, a sub-band 33, and a sub-band 34, with a first guard sub-band added between adjacent sub-bands.

Since the transmission directions of the sub-band 31 and the sub-band 32 are different, the first guard sub-band 35 between the sub-band 31 and the sub-band 32 is an effective guard sub-band, similarly, the first guard sub-band 36 between the sub-band 32 and the sub-band 33 is also an effective guard sub-band, and the first guard sub-band 37 between the sub-band 33 and the sub-band 34 is also an effective guard sub-band.

The subband direction indicating information comprises indicating information of each effective guard subband.

Furthermore, the sequence number of the effective protection sub-band is used as the indication information of the effective protection sub-band; or, using the sequence number of the sub-band which is adjacent to the effective protection sub-band and the frequency domain resource of which is smaller than the effective protection sub-band as the indication information of the effective protection sub-band; or, the sequence number of the sub-band which is adjacent to the effective protection sub-band and whose frequency domain resource is larger than the effective protection sub-band is used as the indication information of the effective protection sub-band.

Taking an effective guard sub-band 35 as an example, a sub-band 31 is adjacent to the effective guard sub-band 35 and has a smaller frequency domain resource than the effective guard sub-band 35, and a sub-band 32 is adjacent to the effective guard sub-band 35 and has a larger frequency domain resource than the effective guard sub-band 35. Therefore, the sequence number of the effective guard sub-band 35 may be used as the indication information of the effective guard sub-band 35, the sequence number of the sub-band 31 may be used as the indication information of the effective guard sub-band 35, and the sequence number of the sub-band 32 may be used as the indication information of the effective guard sub-band 35.

It should be noted that, although fig. 3 shows the working scenario in which the number of effective guard sub-bands is the same as the number of first guard sub-bands, in other working scenarios, the number of effective guard sub-bands may be smaller than the number of first guard sub-bands.

With reference to fig. 4 and fig. 5, fig. 4 is a schematic view of an operation scenario of a third uplink and downlink data transmission in the embodiment of the present invention, and fig. 5 is a schematic view of an operation scenario of a fourth uplink and downlink data transmission in the embodiment of the present invention.

In fig. 4 and 5, since the first guard sub-band is added between the adjacent sub-bands, the number of the first guard sub-bands is 3.

In fig. 4, since the transmission directions between the sub-bands 42 and 43 are the same, the first guard sub-band (not shown) between the sub-bands 42 and 43 is not an effective guard sub-band, and the number of effective guard sub-bands in fig. 4 is only 2.

In fig. 5, since only the transmission direction between the sub-bands 52 and 53 is different, only the first guard sub-band between the sub-bands 52 and 53 is an effective guard sub-band, and the number of effective guard sub-bands in fig. 5 is only 1.

In the embodiment of the invention, the first protection sub-band is added between the adjacent sub-bands, the sub-band direction indication information comprises the indication information of each effective protection sub-band, and because the number of the effective protection sub-bands is less than or equal to the number of the sub-bands, the sub-band direction can be indicated by adopting fewer bits, and the signaling overhead of the sub-band direction indication information is reduced.

Optionally, if the transmission directions of the adjacent sub-bands are the same, the guard sub-band between the adjacent sub-bands may be considered to be invalid, and the invalid guard sub-band may be used for communication information transmission. So that more frequency domain resources can be used for communication information transmission.

Optionally, if the transmission directions of the adjacent sub-bands are the same, the guard sub-band between them may still not be used for communication information transmission.

In the above fig. 3 to fig. 5, the anchor subband may be the subband with the smallest subband index number, and the transmission direction thereof is the default direction, and all the directions are uplink directions in the figures.

In another specific implementation manner of the embodiment of the present invention, in the partial bandwidth, a second protection sub-band is added between adjacent sub-bands with different transmission directions; the configured subband direction indicating information includes: and configuring the sub-band direction indication information to comprise the indication information of each second protection sub-band.

With continued reference to fig. 3, in the working scenario diagram of the second uplink and downlink data transmission in the embodiment of the present invention, a part of the bandwidth may include the sub-band 31, the sub-band 32, the sub-band 33, and the sub-band 34, and because the transmission directions between the sub-band 31 and the sub-band 32 are different, the second guard sub-band 35 is added between the sub-band 31 and the sub-band 32, and similarly, the second guard sub-band 36 is added between the sub-band 32 and the sub-band 33, and the second guard sub-band 37 is added between the sub-band 33 and the sub-band 34.

And the sub-band direction indication information comprises indication information of each second protection sub-band.

Further, the sequence number of the second protection sub-band is used as the indication information of the second protection sub-band; or, the sequence number of the sub-band which is adjacent to the second guard sub-band and whose frequency domain resource is smaller than the second guard sub-band is used as the indication information of the second guard sub-band; or, the sequence number of the sub-band which is adjacent to the second protection sub-band and of which the frequency domain resource is larger than the second protection sub-band is used as the indication information of the second protection sub-band.

Taking a second guard subband 35 as an example, a subband 31 is adjacent to the second guard subband 35 and has a smaller frequency domain resource than the second guard subband 35, and a subband 32 is adjacent to the second guard subband 35 and has a larger frequency domain resource than the second guard subband 35. Therefore, the sequence number of the second guard sub-band 35 may be used as the indication information of the second guard sub-band 35, the sequence number of the sub-band 31 may be used as the indication information of the second guard sub-band 35, and the sequence number of the sub-band 32 may be used as the indication information of the second guard sub-band 35.

With continuing reference to fig. 4 and 5, in fig. 4, since the transmission directions between the sub-bands 42 and 43 are the same, there is no second guard sub-band between the sub-bands 42 and 43, and the number of the second guard sub-bands in fig. 4 is only 2.

In fig. 5, since only the transmission direction between the sub-band 52 and the sub-band 53 is different, only the second guard sub-band exists between the sub-band 52 and the sub-band 53, and the number of the second guard sub-bands in fig. 5 is only 1.

In the embodiment of the invention, the first protection sub-bands are added between the adjacent sub-bands, the sub-band direction indication information comprises the indication information of each effective protection sub-band, and as the number of the effective protection sub-bands is less than or equal to that of the sub-bands, the sub-band direction can be indicated by adopting fewer bits, and the signaling overhead of the sub-band direction indication information is reduced.

Further, the step of configuring the transmission direction of at least a part of the molecular band in the partial bandwidth may comprise: configuring that the sub-bands with the transmission directions being ascending are adjacent, and configuring that the sub-bands with the transmission directions being descending are adjacent; wherein only two adjacent sub-bands differ in transmission direction.

In another embodiment, as an example, fig. 3 to fig. 5 each include two subbands with uplink transmission directions and two subbands with downlink transmission directions, however, 3 second guard subbands need to be added in fig. 3, 2 second guard subbands need to be added in fig. 4, and 1 second guard subband needs to be added in fig. 5. Fig. 5 is a configuration mode in which the subbands whose transmission directions are uplink are adjacent, the subbands whose transmission directions are downlink are adjacent, and only two adjacent subbands have different transmission directions.

In the embodiment of the present invention, the sub-bands whose transmission directions are configured as uplink are adjacent, and the sub-bands whose transmission directions are configured as downlink are adjacent, where only two adjacent sub-bands have different transmission directions, so that when a second guard sub-band is added between adjacent sub-bands whose transmission directions are different, the number of the second guard sub-bands can be reduced to only one, and compared with adding a plurality of guard sub-bands, more frequency domain resources are used for transmitting data.

Further, before configuring a transmission direction of at least a part of the molecular band in the partial bandwidth, the method further comprises: determining that a change in a transmission direction of at least one sub-band in the portion of bandwidth is required.

Still further, the step of determining that the transmission direction of at least one sub-band in the portion of bandwidth needs to be changed may comprise: determining the number of sub-bands needing uplink transmission according to a Buffer State Report (BSR) of a terminal; and if the number of the sub-bands needing to be subjected to uplink transmission is not consistent with the number of the sub-bands with the uplink transmission direction in the partial bandwidth, determining that the transmission direction of at least one sub-band in the partial bandwidth needs to be changed.

Referring to fig. 6, fig. 6 is a schematic view of a fifth working scenario of uplink and downlink data transmission in the embodiment of the present invention.

Before the time T, the number of subbands in the partial bandwidth in which the transmission direction is uplink is 3.

The number of sub-bands which need to be uplink transmitted can be determined according to the BSR of the terminal. Specifically, different BSRs may correspond to different numbers of subbands for uplink transmission. If the number of the sub-bands requiring uplink transmission is 2, the number of the sub-bands requiring uplink transmission (i.e. 2) is not consistent with the number of the sub-bands in the partial bandwidth, the transmission direction of which is uplink (i.e. 3), and at this time, the transmission direction of at least one sub-band in the partial bandwidth needs to be changed, for example, after time T, the transmission direction of one sub-band (e.g. sub-band 63) is changed from uplink to downlink.

Further, the number of subbands to be uplink transmitted may be determined according to the BSR of the terminal in a conventional manner, which is not limited in this embodiment of the present invention.

With continued reference to fig. 1, prior to step S12, the method may further include: determining whether a Physical Uplink Shared Channel (PUSCH) to be reported by a terminal and/or a Downlink Shared Channel (PDSCH) to be sent exist; if so, configuring a sub-band for transmitting PUSCH and/or PDSCH; and configuring a Frequency Domain Resource Allocation (FDRA) Domain, wherein the FDRA Domain is used for indicating the starting point and the length of the PUSCH in the sub-band to which the PUSCH belongs or indicating the starting point and the length of the PDSCH in the sub-band to which the PDSCH belongs.

In step S13, the step of transmitting the subband direction indicating information may include: and when the sub-band direction indication information is sent, sending the frequency domain resource allocation domain together.

Wherein, the frequency domain resource allocation domain may contain the starting point and the length of the PUSCH in the sub-band to which the PUSCH belongs, or may contain the starting point and the end point of the PUSCH in the sub-band to which the PUSCH belongs, or may contain other appropriate information of the PUSCH in the sub-band to which the PUSCH belongs; the frequency domain resource allocation field may contain a start point and a length of a PDSCH in a sub-band to which the PDSCH belongs, or may contain a start point and an end point of a PDSCH in a sub-band to which the PDSCH belongs, or may contain other suitable information of a PDSCH in a sub-band to which the PDSCH belongs.

In the embodiment of the present invention, a frequency domain resource allocation domain is configured, where the frequency domain resource allocation domain is used to indicate a starting point and a length of a PUSCH in a sub-band to which a PUSCH belongs, or to indicate a starting point and a length of a PDSCH in a sub-band to which a PDSCH belongs, so that a terminal may determine the starting point and the length of the PUSCH or the starting point and the length of the PDSCH.

Further, the step of configuring the frequency domain resource allocation domain may include a full configuration or a partial configuration.

In a specific implementation manner of the embodiment of the present invention, the step of configuring the frequency domain resource allocation domain may include: configuring the frequency domain resource allocation domain for each sub-band used for transmitting the PUSCH and/or PDSCH may better enhance the frequency domain resource allocation domain, and particularly better support the non-contiguous frequency domain resource allocation domain.

In another specific implementation manner of the embodiment of the present invention, the step of configuring the frequency domain resource allocation domain may include: if only the PUSCH to be reported by the terminal exists, configuring the frequency domain resource allocation domain for the uplink sub-band for each transmission direction; if only PDSCH to be sent exists, configuring the frequency domain resource allocation domain for a downlink sub-band for each transmission direction; and if the PUSCH to be reported by the terminal and the PDSCH to be sent simultaneously exist, configuring the frequency domain resource allocation domain for all the sub-bands.

In the embodiment of the invention, when judging that only the PUSCH to be reported by the terminal exists or only the PDSCH to be sent exists, the frequency domain resource allocation domain is configured for the sub-band in a single transmission direction, so that the frequency domain resource allocation domain can be better enhanced, the discontinuous frequency domain resource allocation domain is supported, and the quantity of the configured frequency domain resource allocation domains is reduced.

In the embodiment of the present invention, the transmission direction of at least one sub-band in the partial bandwidth is configured, and the sub-band direction indication information is configured and sent, so that the terminal can determine the transmission direction of each sub-band in the partial bandwidth, thereby implementing that the transmission directions between multiple sub-bands are not completely the same at the same time, facilitating adaptation to flexible uplink and downlink service scenarios, and filling up the blank in the prior art.

Further, before configuring the transmission direction of at least a part of the molecular band in the partial bandwidth, the method may further include: determining the state of the enabling parameter as enabling; wherein the enabling parameter is used for indicating whether to configure a transmission direction of at least one part of the sub-band in the partial bandwidth.

In particular, an enable parameter may be introduced, the parameter value of which indicates enable or disable.

When the enable parameter indicates non-enable, the indication information does not indicate that the transmission direction is uplink or downlink, and for example, only slot configuration (slot configuration) configuration may be set, and in this case, the configuration may be performed by naturally referring to the configuration information of the slot configuration (slot configuration). The timeslot configuration may indicate whether the transmission direction of the timeslot or each symbol in the timeslot is uplink or downlink.

When the enabling parameter indicates enabling, there may be indication information indicating that the transmission direction is uplink or downlink, and configuration of slot configuration (slot configuration) may also be set.

The indication information may be accurate to the extent that the transmission direction of each sub-band is uplink or downlink, and then, on each sub-band, the configuration information of the timeslot configuration may be covered by the indication information.

Still further, before determining that the state of the enabling parameter is enabled, the method may further include: if the residual energy of the terminal is greater than or equal to a first threshold value, setting the state of the enabling parameter as enabling; and if the residual energy of the terminal is less than the first threshold value, setting the state of the enabling parameter to be disabled.

In the embodiment of the present invention, when the remaining energy of the terminal is greater than or equal to the first threshold, the state of the enable parameter is set as enable, and the transmission direction of at least one sub-bandwidth in the partial bandwidth is configured, otherwise, the technical solution in the prior art that the transmission directions of multiple partial bandwidths are the same at the same time is continuously used. Due to the fact that certain energy needs to be consumed by adopting the scheme of the embodiment of the invention, the method and the device are only executed when the residual energy of the terminal is large, and are not executed when the residual energy of the terminal is small, and the method and the device are beneficial to improving the durability of the terminal.

Further, the signaling for receiving the subband direction indicating information may be selected from: group common Downlink indication Information (DCI), terminal-specific DCI, radio Resource Control (RRC), and Media Access Control-Control Element (MAC-CE).

Referring to fig. 7, fig. 7 is a flowchart of another method for indicating a data transmission direction according to an embodiment of the present invention. The other method for indicating the data transmission direction may be used for the terminal, and may further include steps S71 to S72:

step S71: receiving sub-band direction indication information, wherein the sub-band direction indication information is used for indicating that the transmission direction of each sub-band in a part of bandwidth is uplink or downlink;

step S72: and determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information.

Wherein, the transmission direction is configured to be uplink or downlink independently between each sub-band.

Further, in the partial bandwidth, the transmission direction of the first sub-band is a predefined transmission direction.

Further, a first protection sub-band is added between adjacent sub-bands, the first protection sub-band between adjacent sub-bands with different transmission directions is marked as an effective protection sub-band, and the sub-band direction indication information includes indication information of each effective protection sub-band; determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information includes: determining whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as that of the first sub-band according to whether an effective protection sub-band adjacent to the first sub-band exists or not, and determining the transmission direction of the second sub-band; determining whether the transmission direction of an i +1 th sub-band adjacent to an ith sub-band is the same as the transmission direction of the ith sub-band and determining the transmission direction of the i +1 th sub-band according to whether an effective protection sub-band adjacent to the ith sub-band exists or not; wherein i is greater than or equal to 2, and i is a positive integer.

Further, the indication information of the effective guard sub-band is the serial number of the effective guard sub-band; or the indication information of the effective protection sub-band is adjacent to the effective protection sub-band, and the frequency domain resource is smaller than the serial number of the sub-band of the effective protection sub-band; or, the indication information of the effective guard sub-band is adjacent to the effective guard sub-band, and the frequency domain resource is greater than the sequence number of the sub-band of the effective guard sub-band.

Further, second guard sub-bands are added between adjacent sub-bands with different transmission directions, and the sub-band direction indication information includes indication information of each second guard sub-band; determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information includes: determining whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as that of the first sub-band according to whether a second guard sub-band adjacent to the first sub-band exists or not, and determining the transmission direction of the second sub-band; determining whether the transmission direction of an i +1 th sub-band adjacent to an ith sub-band is the same as the transmission direction of the ith sub-band or not according to whether a second protection sub-band adjacent to the ith sub-band exists or not in sequence, and determining the transmission direction of the i +1 th sub-band; wherein i is greater than or equal to 2, and i is a positive integer.

Further, the indication information of the second guard sub-band is a sequence number of the second guard sub-band; or the indication information of the second guard sub-band is adjacent to the second guard sub-band, and the frequency domain resource is smaller than the sequence number of the sub-band of the second guard sub-band; or, the indication information of the second guard sub-band is a sequence number of a sub-band adjacent to the second guard sub-band and having a frequency domain resource greater than the second guard sub-band.

Further, the signaling for receiving the subband direction indicating information is selected from: group common DCI, terminal specific DCI, RRC, MAC-CE.

Further, the method may further include: when the sub-band direction indication information is received, receiving and configuring a frequency domain resource allocation domain, wherein the frequency domain resource allocation domain is used for indicating the starting point and the length of a PUSCH in a sub-band to which the PUSCH belongs, or is used for indicating the starting point and the length of the PDSCH in the sub-band to which the PDSCH belongs; and determining the starting point and the length of the PUSCH according to the configured frequency domain resource allocation domain, or determining the starting point and the length of the PDSCH according to the configured frequency domain resource allocation domain.

For the principle, specific implementation and beneficial effects of the data transmission method shown in fig. 7, please refer to the related descriptions about the data transmission method described in the foregoing and fig. 1 to 6, which will not be described again here.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an apparatus for indicating a data transmission direction according to an embodiment of the present invention. The apparatus for indicating the data transmission direction may be used for a base station, and may further include:

a direction configuration module 81, configured to configure a transmission direction of at least one sub-band in the partial bandwidth, where the transmission direction is configured between each sub-band independently as uplink or downlink;

an indication information configuring module 82, configured to configure subband direction indication information, where the subband direction indication information is used to indicate a transmission direction of each subband;

a sending module 83, configured to send the subband direction indicating information.

In a specific implementation, the above device may correspond to a chip having a data processing function in a base station; or a chip module with a data processing function in the base station, or the base station.

For the principle, specific implementation and beneficial effects of the data transmission apparatus, please refer to the related description about the data transmission method described above, and details are not repeated herein.

Referring to fig. 9, fig. 9 is a schematic structural diagram of another data transmission direction indicating apparatus in the embodiment of the present invention. The apparatus for indicating another data transmission direction may be used for a terminal, and may further include:

a receiving module 91, configured to receive subband direction indicating information, where the subband direction indicating information is used to indicate that a transmission direction of each subband in a partial bandwidth is uplink or downlink;

a transmission direction determining module 92, configured to determine, according to the subband direction indicating information, a transmission direction of each subband in the partial bandwidth;

wherein, the transmission direction is configured to be uplink or downlink independently among each sub-band.

In a specific implementation, the apparatus may correspond to a chip having a data processing function in a user equipment; or to a chip module comprising a chip with data processing function in the user equipment, or to the user equipment.

Embodiments of the present invention also provide a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the above method. The readable storage medium may be a computer readable storage medium, and may include, for example, a non-volatile (non-volatile) or non-transitory (non-transitory) memory, and may further include an optical disc, a mechanical hard disk, a solid state hard disk, and the like.

The embodiment of the present invention further provides a communication device, which includes a memory and a processor, where the memory stores a computer program capable of running on the processor, and the processor executes the steps of the method when running the computer program.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

The apparatus 1000 comprises at least one processor 1001 and at least one memory 1002 for storing computer programs and/or data. The memory 1002 is coupled to the processor 1001. The processor 1001 is configured to execute the computer programs and/or data stored in the memory 1002 to implement the communication method described above and shown in fig. 1. The coupling in the embodiments of the present application is a spaced coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form, which is used for information interaction between the devices, units or modules. As another implementation, the memory 1002 may also be located outside of the device 1000. The processor 1001 may cooperate with the memory 1002. The processor 1001 may execute computer programs stored in the memory 1002. At least one of the at least one memory may be included in the processor.

In some embodiments, apparatus 1000 may also include a communication interface 1003, communication interface 1003 being used to communicate with other devices through a transmission medium, such that modules used in apparatus 1000 may communicate with other devices. Illustratively, the communication interface 1003 may be a transceiver, circuit, bus, module, or other type of communication interface.

The embodiment of the present application does not limit the connection medium among the communication interface 1003, the processor 1001, and the memory 1002. For example, in fig. 10, the memory 1002 and the communication interface 1003 of the embodiment of the present application are connected to the processor 1001. Of course, in this embodiment, the memory 1002, the communication interface 1003, and the processor 1001 may also be connected through a bus, and the bus may be divided into an address bus, a data bus, a control bus, and the like.

In the embodiments of the present application, the processor may be a general processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (H DD) or a solid-state drive (SSD), and may also be a volatile memory (RAM), for example, a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be a circuit or any other device capable of implementing a storage function for storing a computer program and/or data.

The method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present invention are wholly or partially generated when the computer program is loaded and executed on a computer. The computer may be a general purpose computer, special purpose computer, computer network, network appliance, user equipment, or other programmable device. The computer program may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., an SSD), among others.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device and product applied to or integrated with the chip module, each module/unit included in the device and product may be implemented by hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least part of the modules/units may be implemented by a software program running on a processor integrated inside the chip module, and the rest (if any) part of the modules/units may be implemented by hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for indicating a data transmission direction, comprising:

configuring the transmission direction of at least one sub-band in the partial bandwidth, wherein the transmission direction is independently configured between the sub-bands as uplink or downlink;

configuring sub-band direction indication information, wherein the sub-band direction indication information is used for indicating the transmission direction of each sub-band;

and transmitting the sub-band direction indication information.

2. The method of claim 1, wherein configuring the transport direction of at least a portion of the molecular band in the portion of bandwidth comprises:

configuring the transmission directions of other sub-bands except the first sub-band in the partial bandwidth;

wherein the transmission direction of the first subband is a predefined transmission direction.

3. The method according to claim 1, characterized in that in the partial bandwidth, a first guard sub-band is added between adjacent sub-bands;

the configured subband direction indicating information includes:

determining the first protection sub-band between adjacent sub-bands with different transmission directions, and recording as an effective protection sub-band;

4. The method of claim 3,

the sequence number of the effective protection sub-band is used as the indication information of the effective protection sub-band;

alternatively, the first and second electrodes may be,

using the serial number of the sub-band which is adjacent to the effective protection sub-band and the frequency domain resource of which is smaller than the effective protection sub-band as the indication information of the effective protection sub-band;

alternatively, the first and second electrodes may be,

and using the serial number of the sub-band which is adjacent to the effective protection sub-band and the frequency domain resource of which is larger than that of the effective protection sub-band as the indication information of the effective protection sub-band.

5. The method according to claim 1, characterized in that in the part of the bandwidth, a second guard sub-band is added between adjacent sub-bands with different transmission directions;

the configured subband direction indicating information includes:

and configuring the sub-band direction indication information to comprise the indication information of each second protection sub-band.

6. The method of claim 5,

the serial number of the second protection sub-band is used as the indication information of the second protection sub-band;

alternatively, the first and second electrodes may be,

using the sequence number of the sub-band which is adjacent to the second protection sub-band and the frequency domain resource of which is smaller than that of the second protection sub-band as the indication information of the second protection sub-band;

alternatively, the first and second electrodes may be,

and using the sequence number of the sub-band which is adjacent to the second protection sub-band and the frequency domain resource of which is larger than that of the second protection sub-band as the indication information of the second protection sub-band.

7. The method of claim 1, wherein signaling for transmitting the subband direction indicating information is selected from the group consisting of: group-generic downlink indication information DCI, terminal-specific DCI, radio resource control RRC, medium access control-control element MAC-CE.

8. The method of claim 1, further comprising, prior to configuring a direction of transport of at least a portion of the molecular band in the portion of bandwidth:

determining that a change in a transmission direction of at least one sub-band in the portion of bandwidth is required.

9. The method of claim 8, wherein determining that a transmission direction of at least one sub-band in the portion of bandwidth needs to be changed comprises:

determining the number of sub-bands needing uplink transmission according to an uplink Buffer Status Report (BSR) of a terminal;

and if the number of the sub-bands needing to be subjected to uplink transmission is not consistent with the number of the sub-bands with the uplink transmission direction in the partial bandwidth, determining that the transmission direction of at least one sub-band in the partial bandwidth needs to be changed.

10. The method of claim 1, wherein configuring the transport direction of at least a portion of the molecular band in the portion of bandwidth comprises:

configuring that the sub-bands with the transmission directions of uplink are adjacent, and configuring that the sub-bands with the transmission directions of downlink are adjacent;

wherein only two adjacent sub-bands differ in transmission direction.

11. The method of claim 1,

before transmitting the subband direction indicating information, the method further comprises:

determining whether a Physical Uplink Shared Channel (PUSCH) to be reported by a terminal and/or a downlink shared physical channel (PDSCH) to be sent exist;

if so, configuring a sub-band for transmitting PUSCH and/or PDSCH;

configuring a frequency domain resource allocation domain, wherein the frequency domain resource allocation domain is used for indicating the starting point and the length of a PUSCH in a sub-band to which the PUSCH belongs or indicating the starting point and the length of the PDSCH in the sub-band to which the PDSCH belongs;

the transmitting the subband direction indicating information comprises:

and when the sub-band direction indication information is sent, sending the frequency domain resource allocation domain together.

12. The method of claim 11, wherein configuring a frequency domain resource allocation domain comprises:

and configuring a frequency domain resource allocation domain for each sub-band for transmitting the PUSCH and/or the PDSCH.

13. The method of claim 11, wherein configuring a frequency domain resource allocation domain comprises:

if only the PUSCH to be reported by the terminal exists, configuring the frequency domain resource allocation domain for the uplink sub-band for each transmission direction;

if only PDSCH to be sent exists, configuring the frequency domain resource allocation domain for a downlink sub-band for each transmission direction;

and if the PUSCH to be reported by the terminal and the PDSCH to be sent simultaneously exist, configuring the frequency domain resource allocation domain for all the sub-bands.

14. The method of claim 11, further comprising, prior to configuring a direction of transport of at least a portion of the molecular band in the portion of bandwidth:

determining the state of the enabling parameter as enabling;

wherein the enabling parameter is used for indicating whether to configure the transmission direction of at least one part of the sub-band in the partial bandwidth.

15. The method of claim 14, prior to determining that the state of the enabling parameter is enabled, further comprising:

if the residual energy of the terminal is larger than or equal to a first threshold value, setting the state of the enabling parameter as enabling;

and if the residual energy of the terminal is less than the first threshold value, setting the state of the enabling parameter to be disabled.

16. A method for indicating a data transmission direction, comprising:

receiving sub-band direction indication information, wherein the sub-band direction indication information is used for indicating that the transmission direction of each sub-band in a part of bandwidth is uplink or downlink;

determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information;

17. The method of claim 16,

in the partial bandwidth, a transmission direction of the first sub-band is a predefined transmission direction.

18. The method according to claim 17, wherein a first guard subband is added between adjacent subbands, the first guard subband between adjacent subbands with different transmission directions is denoted as an effective guard subband, and the subband direction indication information includes indication information of each effective guard subband;

determining the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information includes:

determining whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as that of the first sub-band according to whether an effective protection sub-band adjacent to the first sub-band exists or not, and determining the transmission direction of the second sub-band;

determining whether the transmission direction of an i +1 th sub-band adjacent to an ith sub-band is the same as the transmission direction of the ith sub-band or not according to whether an effective protection sub-band adjacent to the ith sub-band exists or not in sequence, and determining the transmission direction of the i +1 th sub-band;

wherein i is greater than or equal to 2, and i is a positive integer.

19. The method of claim 18,

the indication information of the effective protection sub-band is the serial number of the effective protection sub-band;

alternatively, the first and second electrodes may be,

the indication information of the effective protection sub-band is adjacent to the effective protection sub-band, and the frequency domain resource is smaller than the serial number of the sub-band of the effective protection sub-band;

alternatively, the first and second electrodes may be,

the indication information of the effective protection sub-band is adjacent to the effective protection sub-band, and the frequency domain resource is larger than the sequence number of the sub-band of the effective protection sub-band.

20. The method according to claim 17, wherein second guard subbands are added between adjacent subbands with different transmission directions, and the subband direction indication information includes indication information of each second guard subband;

determining whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as that of the first sub-band according to whether a second guard sub-band adjacent to the first sub-band exists or not, and determining the transmission direction of the second sub-band;

determining whether the transmission direction of an i +1 th sub-band adjacent to an ith sub-band is the same as the transmission direction of the ith sub-band and determining the transmission direction of the i +1 th sub-band according to whether a second protection sub-band adjacent to the ith sub-band exists or not;

wherein i is greater than or equal to 2 and is a positive integer.

21. The method of claim 20,

the indication information of the second protection sub-band is the serial number of the second protection sub-band;

alternatively, the first and second electrodes may be,

the indication information of the second guard sub-band is adjacent to the second guard sub-band, and the frequency domain resource is smaller than the sequence number of the sub-band of the second guard sub-band;

alternatively, the first and second electrodes may be,

and the indication information of the second protection sub-band is adjacent to the second protection sub-band, and the frequency domain resource is greater than the sequence number of the sub-band of the second protection sub-band.

22. The method of claim 16, wherein the signaling for receiving the subband direction indicating information is selected from the group consisting of: group common DCI, terminal specific DCI, RRC, MAC-CE.

23. The method of claim 16, further comprising:

when the sub-band direction indication information is received, receiving and configuring a frequency domain resource allocation domain, wherein the frequency domain resource allocation domain is used for indicating the starting point and the length of a PUSCH in a sub-band to which the PUSCH belongs, or is used for indicating the starting point and the length of the PDSCH in the sub-band to which the PDSCH belongs;

and determining the starting point and the length of the PUSCH according to the configured frequency domain resource allocation domain, or determining the starting point and the length of the PDSCH according to the configured frequency domain resource allocation domain.

24. An apparatus for indicating a data transmission direction, comprising:

the direction configuration module is used for configuring the transmission direction of at least one sub-band in the partial bandwidth, wherein the transmission direction is independently configured between each sub-band to be uplink or downlink;

an indication information configuration module, configured to configure subband direction indication information, where the subband direction indication information is used to indicate a transmission direction of each subband;

and the sending module is used for sending the sub-band direction indication information.

25. An apparatus for indicating a data transmission direction, comprising:

a receiving module, configured to receive subband direction indication information, where the subband direction indication information is used to indicate that a transmission direction of each subband in a partial bandwidth is uplink or downlink;

a transmission direction determining module, configured to determine, according to the sub-band direction indication information, a transmission direction of each sub-band in the partial bandwidth;

26. A readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for indicating a direction of data transmission according to any one of claims 1 to 15, or carries out the steps of the method for indicating a direction of data transmission according to any one of claims 16 to 23.

27. A communication device comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor executes the computer program to perform the steps of the method for indicating a direction of data transmission of any one of claims 1 to 15, or to perform the steps of the method for indicating a direction of data transmission of any one of claims 16 to 23.