Methods and apparatus for indicating the direction of data transmission, and communication devices.

Abstract

A method and apparatus for indicating data transmission direction, and a communication device, the method comprising: configuring the transmission direction of at least a portion of subbands in a partial bandwidth, wherein each subband is independently configured with a transmission direction of uplink or downlink; configuring subband direction indication information, the subband direction indication information being used to indicate the transmission direction of each subband; and sending the subband direction indication information. This invention can adapt to flexible and varied uplink and downlink service scenarios, filling a gap in the prior art.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method and apparatus for indicating the direction of data transmission, a readable storage medium, and a communication device. Background Technology

[0002] In the existing full-duplex mode, bidirectional signal transmission (A→B and B→A) can be performed simultaneously (instantaneously), with uplink or downlink data being sent in different bandwidth parts (BWP).

[0003] In existing technologies, only unidirectional transmission is supported within a single bandwidth segment, meaning that each sub-band within a single bandwidth segment adopts the same transmission direction.

[0004] However, in order to adapt to flexible and ever-changing uplink and downlink service scenarios, the transmission directions between different subbands within a single bandwidth portion may not be exactly the same, and there is currently no discussion on this service scenario. Summary of the Invention

[0005] The technical problem solved by this invention is to provide a method and apparatus for indicating the direction of data transmission, a readable storage medium, and a communication device, which can adapt to flexible and ever-changing uplink and downlink business scenarios and fill the gap in the prior art.

[0006] To address the aforementioned technical problems, embodiments of the present invention provide a method for indicating the direction of data transmission, comprising: configuring the transmission direction of at least a portion of subbands within a partial bandwidth, wherein each subband is independently configured with an uplink or downlink transmission direction; configuring subband direction indication information, the subband direction indication information being used to indicate the transmission direction of each subband; and sending the subband direction indication information.

[0007] Optionally, configuring the transmission direction of at least a portion of the subbands in the partial bandwidth includes configuring the transmission direction of other subbands besides the first subband in the partial bandwidth; wherein the transmission direction of the first subband is a predefined transmission direction.

[0008] Optionally, a first protection sub-band is added between adjacent sub-bands in the portion of bandwidth; the configuration sub-band direction indication information includes: determining the first protection sub-band located between adjacent sub-bands with different transmission directions, denoted as the effective protection sub-band; wherein, the sub-band direction indication information includes indication information of each effective protection sub-band.

[0009] Optionally, the sequence number of the effective protection sub-band can be used as the indication information of the effective protection sub-band; or, the sequence number of the sub-band adjacent to the effective protection sub-band and with less frequency domain resources than the effective protection sub-band can be used as the indication information of the effective protection sub-band; or, the sequence number of the sub-band adjacent to the effective protection sub-band and with greater frequency domain resources than the effective protection sub-band can be used as the indication information of the effective protection sub-band.

[0010] Optionally, a second guard subband is added between adjacent subbands with different transmission directions in the portion of the bandwidth; the configuration of the subband direction indication information includes: configuring the subband direction indication information to include indication information of each second guard subband.

[0011] Optionally, the sequence number of the second protection sub-band can be used as the indication information of the second protection sub-band; or, the sequence number of the sub-band adjacent to the second protection sub-band and with less frequency domain resources than the second protection sub-band can be used as the indication information of the second protection sub-band; or, the sequence number of the sub-band adjacent to the second protection sub-band and with greater frequency domain resources than the second protection sub-band can be used as the indication information of the second protection sub-band.

[0012] Optionally, the signaling for sending the subband direction indication information is selected from: Group General Downlink Indication Information (DCI), Terminal Dedicated DCI, Radio Resource Control (RRC), and Media Access Control - Control Element (MAC-CE).

[0013] Optionally, before configuring the transmission direction of at least a portion of the subbands in the portion of the bandwidth, the method further includes: determining that the transmission direction of at least one subband in the portion of the bandwidth needs to be changed.

[0014] Optionally, determining that the transmission direction of at least one subband in the partial bandwidth needs to be changed includes: determining the number of subbands that need to be transmitted uplink based on the terminal's uplink buffer status report (BSR); if the number of subbands that need to be transmitted uplink is inconsistent with the number of subbands in the partial bandwidth whose transmission direction is uplink, then it is determined that the transmission direction of at least one subband in the partial bandwidth needs to be changed.

[0015] Optionally, the transmission direction of at least a portion of the subbands in the configured bandwidth includes: subbands configured for uplink transmission are adjacent, and subbands configured for downlink transmission are adjacent; wherein only two adjacent subbands have different transmission directions.

[0016] Optionally, before sending the subband direction indication information, the method further includes: determining whether there is a Physical Uplink Shared Channel (PUSCH) to be reported by the terminal and / or a Downlink Shared Physical Channel (PDSCH) to be transmitted; if so, configuring a subband for transmitting the PUSCH and / or PDSCH; configuring a frequency domain resource allocation field, wherein the frequency domain resource allocation field is used to indicate the start and length of the PUSCH in the subband to which the PUSCH belongs, or to indicate the start and length of the PDSCH in the subband to which the PDSCH belongs; sending the subband direction indication information includes: sending the frequency domain resource allocation field together with sending the subband direction indication information.

[0017] Optionally, configuring the frequency domain resource allocation field includes configuring a frequency domain resource allocation field for each subband used for transmitting PUSCH and / or PDSCH.

[0018] Optionally, configuring the frequency domain resource allocation domain includes: if there is only a PUSCH to be reported by the terminal, then the frequency domain resource allocation domain is configured for each subband with the transmission direction of uplink; if there is only a PDSCH to be transmitted, then the frequency domain resource allocation domain is configured for each subband with the transmission direction of downlink; if there are both PUSCH to be reported by the terminal and PDSCH to be transmitted, then the frequency domain resource allocation domain is configured for all subbands.

[0019] Optionally, before configuring the transmission direction of at least a portion of the subbands in the partial bandwidth, the method further includes: determining that the state of an enabling parameter is enabled; wherein the enabling parameter is used to indicate whether to configure the transmission direction of at least a portion of the subbands in the partial bandwidth.

[0020] Optionally, before determining that the state of the enabling parameter is enabled, the method further includes: if the remaining energy of the terminal is greater than or equal to a first threshold, then setting the state of the enabling parameter to be enabled; if the remaining energy of the terminal is less than the first threshold, then setting the state of the enabling parameter to be disabled.

[0021] To address the aforementioned technical problems, embodiments of the present invention provide a method for indicating the direction of data transmission, comprising: receiving subband direction indication information, wherein the subband direction indication information is used to indicate whether the transmission direction of each subband in a portion of the bandwidth is uplink or downlink; determining the transmission direction of each subband in the portion of the bandwidth based on the subband direction indication information; wherein each subband is independently configured to have an uplink or downlink transmission direction.

[0022] Optionally, within the specified bandwidth, the transmission direction of the first sub-band is a predefined transmission direction.

[0023] Optionally, a first guard sub-band is added between adjacent sub-bands. The first guard sub-band located between adjacent sub-bands with different transmission directions is denoted as an effective guard sub-band. The sub-band direction indication information includes indication information of each effective 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 the second sub-band adjacent to the first sub-band is the same as the transmission direction of the first sub-band based on whether there is an effective guard sub-band adjacent to the first sub-band, and determining the transmission direction of the second sub-band; sequentially determining whether the transmission direction of the (i+1)th sub-band adjacent to the i-th sub-band is the same as the transmission direction of the i-th sub-band based on whether there is an effective guard sub-band adjacent to the i-th sub-band, and determining the transmission direction of the (i+1)th sub-band; where i is greater than or equal to 2, and i is a positive integer.

[0024] Optionally, the indication information of the effective protection sub-band is the sequence number of the effective protection sub-band; or, the indication information of the effective protection sub-band is the sequence number of the sub-band adjacent to the effective protection sub-band and whose frequency domain resources are less than those of the effective protection sub-band; or, the indication information of the effective protection sub-band is the sequence number of the sub-band adjacent to the effective protection sub-band and whose frequency domain resources are greater than those of the effective protection sub-band.

[0025] Optionally, a second guard sub-band is added between adjacent sub-bands with different transmission directions. The sub-band direction indication information includes indication information for each second guard sub-band. Determining the transmission direction of each sub-band in the partial bandwidth based on the sub-band direction indication information includes: determining whether the transmission direction of the second sub-band adjacent to the first sub-band is the same as the transmission direction of the first sub-band based on whether there is a second guard sub-band adjacent to the first sub-band, and determining the transmission direction of the second sub-band; sequentially determining whether the transmission direction of the (i+1)th sub-band adjacent to the i-th sub-band is the same as the transmission direction of the i-th sub-band based on whether there is a second guard sub-band adjacent to the i-th sub-band, and determining the transmission direction of the (i+1)th sub-band; where i is greater than or equal to 2, and i is a positive integer.

[0026] Optionally, the indication information of the second guard sub-band is the sequence number of the second guard sub-band; or, the indication information of the second guard sub-band is the sequence number of the sub-band adjacent to the second guard sub-band and whose frequency domain resources are less than those of the second guard sub-band; or, the indication information of the second guard sub-band is the sequence number of the sub-band adjacent to the second guard sub-band and whose frequency domain resources are greater than those of the second guard sub-band.

[0027] Optionally, the signaling for receiving the sub-band direction indication information is selected from: group general DCI, terminal-specific DCI, RRC, and MAC-CE.

[0028] Optionally, the method further includes: when receiving the subband direction indication information, simultaneously receiving a configured frequency domain resource allocation field, wherein the frequency domain resource allocation field is used to indicate the start point and length of the PUSCH in the subband to which the PUSCH belongs, or to indicate the start point and length of the PDSCH in the subband to which the PDSCH belongs; determining the start point and length of the PUSCH according to the configured frequency domain resource allocation field, or determining the start point and length of the PDSCH according to the configured frequency domain resource allocation field.

[0029] To address the aforementioned technical problems, embodiments of the present invention provide a data transmission direction indication device, comprising: a direction configuration module for configuring the transmission direction of at least a portion of subbands within a portion of the bandwidth, wherein each subband is independently configured with an uplink or downlink transmission direction; an indication information configuration module for configuring subband direction indication information, wherein the subband direction indication information is used to indicate the transmission direction of each subband; and a transmission module for transmitting the subband direction indication information.

[0030] To address the aforementioned technical problems, embodiments of the present invention provide a data transmission direction indication device, comprising: a receiving module for receiving sub-band direction indication information, wherein the sub-band direction indication information is used to indicate whether the transmission direction of each sub-band in a portion of the bandwidth is uplink or downlink; and a transmission direction determination module for determining the transmission direction of each sub-band in the portion of the bandwidth based on the sub-band direction indication information; wherein each sub-band is independently configured with an uplink or downlink transmission direction.

[0031] To address the aforementioned technical problems, embodiments of the present invention provide a readable storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, performs the steps of the aforementioned data transmission direction indication method.

[0032] To address the aforementioned technical problems, embodiments of the present invention provide a communication device, including a memory and a processor. The memory stores a computer program that can run on the processor, and when the processor runs the computer program, it executes the steps of the aforementioned data transmission direction indication method.

[0033] Compared with the prior art, the technical solution of the embodiments of the present invention has the following beneficial effects:

[0034] In this embodiment of the invention, configuring the transmission direction of at least a portion of the sub-bands in a portion of the bandwidth, configuring and sending the sub-band direction indication information, enables the terminal to determine the transmission direction of each sub-band in the portion of the bandwidth, thereby achieving that the transmission directions of multiple sub-bands are not completely the same at the same time, which helps to adapt to flexible and ever-changing uplink and downlink service scenarios and fills the gaps in the prior art.

[0035] Furthermore, a first protection sub-band is added between adjacent sub-bands. The sub-band direction indication information includes the indication information of each effective protection sub-band. Since the number of effective protection sub-bands is less than or equal to the number of sub-bands, fewer bits can be used to indicate the sub-band direction, reducing the signaling overhead of the sub-band direction indication information.

[0036] Furthermore, the subbands with the transmission direction of uplink are configured to be adjacent, and the subbands with the transmission direction of downlink are configured to be adjacent. Only two adjacent subbands have different transmission directions. Therefore, when adding a second guard subband between adjacent subbands with different transmission directions, the number of second guard subbands can be reduced to only one. Compared with adding multiple guard subbands, more frequency domain resources are available for data transmission.

[0037] Furthermore, a frequency domain resource allocation field is configured, which is used to indicate the start point and length of the PUSCH in the subband to which the PUSCH belongs, or to indicate the start point and length of the PDSCH in the subband to which the PDSCH belongs, so that the terminal can determine the start point and length of the PUSCH or the start point and length of the PDSCH.

[0038] Furthermore, when the remaining energy of the terminal is greater than or equal to the first threshold, the enable parameter is set to enabled, and only then is the transmission direction of at least a portion of the sub-bands in the bandwidth configured. Otherwise, the existing technology of having the same transmission direction among multiple sub-bands at the same time continues to be used. Since the solution of this embodiment requires a certain amount of energy, it is only executed when the remaining energy of the terminal is large, and not executed when the remaining energy of the terminal is small, which helps to improve the durability of the terminal. Attached Figure Description

[0039] Figure 1 This is a flowchart of a method for indicating the direction of data transmission in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the first uplink and downlink data transmission working scenario in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the working scenario of the second type of uplink and downlink data transmission in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the working scenario of the third type of uplink and downlink data transmission in this embodiment of the invention;

[0043] Figure 5 This is a schematic diagram of the fourth uplink and downlink data transmission working scenario in an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of the fifth uplink and downlink data transmission working scenario in this embodiment of the invention;

[0045] Figure 7 This is a flowchart of another method for indicating the direction of data transmission in an embodiment of the present invention;

[0046] Figure 8 This is a schematic diagram of the structure of a data transmission direction indicator device according to an embodiment of the present invention;

[0047] Figure 9 This is a schematic diagram of the structure of another data transmission direction indicator device in an embodiment of the present invention;

[0048] Figure 10 This is a schematic diagram of the structure of a communication device according to an embodiment of the present invention. Detailed Implementation

[0049] In existing technologies, only unidirectional transmission is supported within a single bandwidth segment, meaning that all sub-bands within a single bandwidth segment use the same transmission direction. However, to adapt to flexible and varied uplink and downlink service scenarios, the transmission directions between different sub-bands within a single bandwidth segment can not be exactly the same. Currently, there is no discussion regarding this service scenario.

[0050] In this embodiment of the invention, configuring the transmission direction of at least a portion of the sub-bands in a portion of the bandwidth, configuring and sending the sub-band direction indication information, enables the terminal to determine the transmission direction of each sub-band in the portion of the bandwidth, thereby achieving that the transmission directions of multiple sub-bands are not completely the same at the same time, which helps to adapt to flexible and ever-changing uplink and downlink service scenarios and fills the gaps in the prior art.

[0051] To make the above-mentioned objectives, features and beneficial effects of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] Reference Figure 1 , Figure 1 This is a flowchart of a method for indicating the direction of data transmission according to an embodiment of the present invention. The method for indicating the direction of data transmission can be used in a base station and may further include steps S11 to S13:

[0053] Step S11: Configure the transmission direction of at least a portion of the subbands in the bandwidth, wherein each subband is independently configured to have either an uplink or downlink transmission direction;

[0054] Step S12: Configure sub-band direction indication information, which is used to indicate the transmission direction of each sub-band;

[0055] Step S13: Send the sub-band direction indication information.

[0056] It is understood that, in specific implementation, the method can be implemented using a software program that runs in a processor integrated within the chip or chip module.

[0057] In the specific implementation of step S11, the transmission direction can be configured independently between each sub-band in the Bandwidth Part (BWP).

[0058] Reference Figure 2 , Figure 2 This is a schematic diagram of the first uplink and downlink data transmission working scenario in an embodiment of the present invention.

[0059] like Figure 2 As shown, the terminal or base station can implement different uplink / downlink transmissions on different subbands. Among them, subband 23 and subband 24 occupy the same frequency domain resources and can be regarded as the same subband. The following description is based on different times T1 and T2.

[0060] For example, at time T1, subbands 21, 22, and 23 in a portion of the bandwidth are transmitted simultaneously. Subbands 21 and 23 are transmitted in the downlink direction, while subband 22 is transmitted in the uplink direction. At time T2, subbands 21, 22, and 24 in a portion of the bandwidth are transmitted simultaneously. Subband 21 is transmitted in the downlink direction, while subbands 22 and 24 are transmitted in the uplink direction.

[0061] It should be noted that in existing technologies, at the same time, the transmission directions between multiple sub-bands within the same portion of the bandwidth are the same. Figure 2 Taking sub-bands 21, 22, and 23 as examples, in the prior art, the transmission directions of sub-bands 21 to 23 need to be either uplink or downlink.

[0062] Furthermore, the step of configuring the transmission direction of at least a portion of the subbands in the partial bandwidth may include: configuring the transmission direction of other subbands besides the first subband in the partial bandwidth; wherein the transmission direction of the first subband is a predefined transmission direction.

[0063] For example in Figure 2 In this configuration, the first sub-band in each bandwidth section can be defaulted to either fixed downlink or uplink transmission. This first sub-band can be the sub-band with the smallest sub-band index number, such as sub-band 21. The transmission direction of sub-band 21 can be defaulted to downlink transmission. Alternatively, one or more other sub-bands with different index numbers can be defaulted to only perform downlink or uplink transmission.

[0064] The subband that is defaulted to downlink or uplink transmission can be called an anchor subband.

[0065] In this embodiment of the invention, the transmission direction of the first subband can be predefined by the communication protocol, or the transmitting end can notify the receiving end of the transmission direction of the first subband by higher-layer signaling, a Medium Access Control (MAC) control element (CE), or Downlink Control Information (DCI).

[0066] Continue to refer to Figure 1 In the specific implementation of step S12, sub-band direction indication information is configured, which is used to indicate the transmission direction of each sub-band.

[0067] In one specific embodiment of the present invention, a first protection sub-band is added between adjacent sub-bands in the portion of bandwidth; the configuration sub-band direction indication information includes: determining the first protection sub-band located between adjacent sub-bands with different transmission directions, denoted as an effective protection sub-band; wherein, the sub-band direction indication information includes indication information of each effective protection sub-band.

[0068] Reference Figure 3 , Figure 3 This is a schematic diagram of the second type of uplink and downlink data transmission working scenario in an embodiment of the present invention.

[0069] Specifically, a portion of the bandwidth may include subband 31, subband 32, subband 33 and subband 34, with a first guard subband added between adjacent subbands.

[0070] Since the transmission directions between sub-bands 31 and 32 are different, the first protective sub-band 35 between sub-bands 31 and 32 is an effective protective sub-band. Similarly, the first protective sub-band 36 between sub-bands 32 and 33 is also an effective protective sub-band, and the first protective sub-band 37 between sub-bands 33 and 34 is also an effective protective sub-band.

[0071] The sub-band direction indication information includes indication information for each effective protection sub-band.

[0072] Furthermore, the sequence number 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 adjacent to the effective protection sub-band and with less frequency domain resources than 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 adjacent to the effective protection sub-band and with greater frequency domain resources than the effective protection sub-band is used as the indication information of the effective protection sub-band.

[0073] Taking the effective protection sub-band 35 as an example, sub-band 31 is adjacent to the effective protection sub-band 35 and has less frequency domain resources than the effective protection sub-band 35; sub-band 32 is adjacent to the effective protection sub-band 35 and has greater frequency domain resources than the effective protection sub-band 35. Therefore, the sequence number of the effective protection sub-band 35 can be used as the indication information of the effective protection sub-band 35, as can the sequence number of sub-band 31, or as the sequence number of sub-band 32.

[0074] It should be pointed out that, although Figure 3 In the work scenario shown, the number of effective protection sub-bands is the same as the number of first protection sub-bands. However, in other work scenarios, the number of effective protection sub-bands may be less than the number of first protection sub-bands.

[0075] Combined with reference Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the third uplink and downlink data transmission working scenario in an embodiment of the present invention. Figure 5 This is a schematic diagram of the fourth uplink and downlink data transmission scenario in an embodiment of the present invention.

[0076] exist Figure 4 and Figure 5 In this case, since a first guard sub-band is added between adjacent sub-bands, the number of first guard sub-bands is 3.

[0077] exist Figure 4 In this context, since the transmission directions of sub-bands 42 and 43 are the same, the first guard sub-band (not shown in the figure) between sub-bands 42 and 43 is not an effective guard sub-band. Figure 4 The number of effective protection subbands is only 2.

[0078] exist Figure 5 In this context, since the transmission directions of sub-bands 52 and 53 are different only, only the first guard sub-band between sub-bands 52 and 53 is an effective guard sub-band. Figure 5 The number of effective protection subbands is only 1.

[0079] In this embodiment of the invention, a first protection sub-band is added between adjacent sub-bands. The sub-band direction indication information includes indication information of each effective protection sub-band. Since the number of effective protection sub-bands is less than or equal to the number of sub-bands, fewer bits can be used to indicate the sub-band direction, thereby reducing the signaling overhead of the sub-band direction indication information.

[0080] Optionally, if adjacent subbands have the same transmission direction, the guard subband between them can be considered invalid, and the invalid guard subband can be used for communication information transmission. This allows for the use of more frequency domain resources for communication information transmission.

[0081] Optionally, if adjacent subbands have the same transmission direction, then the guard subband between them still cannot be used for communication information transmission.

[0082] In the above Figures 3 to 5 In this context, the anchor sub-band can be the sub-band with the smallest sub-band index number, and its transmission direction is the default direction, as shown in the figure, all of which are uplink.

[0083] In another specific embodiment of the present invention, a second protection sub-band is added between adjacent sub-bands with different transmission directions in the portion of bandwidth; the configuration of sub-band direction indication information includes: configuring the sub-band direction indication information to include indication information of each second protection sub-band.

[0084] Continue to refer to Figure 3 In the schematic diagram of the second uplink and downlink data transmission working scenario in the embodiment of the present invention, part of the bandwidth may include subband 31, subband 32, subband 33 and subband 34. Since the transmission directions between subband 31 and subband 32 are different, a second protection subband 35 is added between subband 31 and subband 32. Similarly, a second protection subband 36 is added between subband 32 and subband 33, and a second protection subband 37 is added between subband 33 and subband 34.

[0085] The sub-band direction indication information includes the indication information of each second protection sub-band.

[0086] Furthermore, 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 adjacent to the second protection sub-band and with less frequency domain resources than 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 adjacent to the second protection sub-band and with greater frequency domain resources than the second protection sub-band is used as the indication information of the second protection sub-band.

[0087] Taking the second guard sub-band 35 as an example, sub-band 31 is adjacent to the second guard sub-band 35 and has less frequency domain resources than the second guard sub-band 35; sub-band 32 is adjacent to the second guard sub-band 35 and has more frequency domain resources than the second guard sub-band 35. Therefore, the sequence number of the second guard sub-band 35 can be used as the indication information of the second guard sub-band 35, as can the sequence number of sub-band 31, or as can the sequence number of sub-band 32.

[0088] Continue to refer to Figure 4 and Figure 5 ,exist Figure 4Since the transmission directions of sub-bands 42 and 43 are the same, there is no second guard sub-band between sub-bands 42 and 43. Figure 4 The number of second protection sub-bands is only 2.

[0089] exist Figure 5 In this configuration, since the transmission directions of sub-bands 52 and 53 are different only, there is a second guard sub-band only between sub-bands 52 and 53. Figure 5 The number of the second protection sub-band is only 1.

[0090] In this embodiment of the invention, a first protection sub-band is added between adjacent sub-bands. The sub-band direction indication information includes indication information of each effective protection sub-band. Since the number of effective protection sub-bands is less than or equal to the number of sub-bands, fewer bits can be used to indicate the sub-band direction, thereby reducing the signaling overhead of the sub-band direction indication information.

[0091] Furthermore, the step of configuring the transmission direction of at least a portion of the subbands in the bandwidth may include: configuring subbands with the transmission direction of uplink to be adjacent, and configuring subbands with the transmission direction of downlink to be adjacent; wherein only two adjacent subbands have different transmission directions.

[0092] Taking another specific implementation method mentioned above as an example, in Figures 3 to 5 Each of these includes two uplink subbands and two downlink subbands. Figure 3 Three second protection sub-bands need to be added. Figure 4 Two second protection sub-bands need to be added. Figure 5 A second protection sub-band needs to be added. Among them, Figure 5 This means that the subbands with the uplink transmission direction are adjacent, and the subbands with the downlink transmission direction are adjacent, with only two adjacent subbands having different transmission directions.

[0093] In this embodiment of the invention, subbands with the transmission direction of uplink are configured to be adjacent, and subbands with the transmission direction of downlink are configured to be adjacent. Only two adjacent subbands have different transmission directions. Therefore, when adding a second guard subband between adjacent subbands with different transmission directions, the number of second guard subbands can be reduced to only one. Compared with adding multiple guard subbands, more frequency domain resources are available for data transmission.

[0094] Furthermore, before configuring the transmission direction of at least a portion of the subbands in the partial bandwidth, the method further includes: determining that the transmission direction of at least one subband in the partial bandwidth needs to be changed.

[0095] Furthermore, the step of determining that the transmission direction of at least one subband in the portion of bandwidth needs to be changed may include: determining the number of subbands that need to be transmitted uplink based on the terminal's uplink buffer state report (BSR); if the number of subbands that need to be transmitted uplink is inconsistent with the number of subbands in the portion of bandwidth whose transmission direction is uplink, then it is determined that the transmission direction of at least one subband in the portion of bandwidth needs to be changed.

[0096] Reference Figure 6 , Figure 6 This is a schematic diagram of the fifth uplink and downlink data transmission scenario in this embodiment of the invention.

[0097] Before time T, there are 3 uplink subbands in a portion of the bandwidth.

[0098] The number of subbands requiring uplink transmission can be determined based on the terminal's BSR. Specifically, different BSRs correspond to different numbers of uplink subbands. If two subbands require uplink transmission, this number is inconsistent with the number of uplink subbands in the specified bandwidth (i.e., three). In this case, the transmission direction of at least one subband in the specified bandwidth needs to be changed. For example, after time T, the transmission direction of one of the subbands (e.g., subband 63) can be changed from uplink to downlink.

[0099] Furthermore, conventional methods can be used to determine the number of subbands that need to be transmitted uplink based on the terminal's BSR. This embodiment of the invention does not impose any restrictions on this.

[0100] Continue to refer to Figure 1 Before step S12, the method may further include: determining whether there is a Physical Uplink Shared Channel (PUSCH) to be reported by the terminal and / or a Physical Downlink Shared Channel (PDSCH) to be transmitted; if so, configuring a subband for transmitting PUSCH and / or PDSCH; configuring a Frequency Domain Resource Allocation (FDRA), wherein the FDRA is used to indicate the start and length of PUSCH in the subband to which PUSCH belongs, or to indicate the start and length of PDSCH in the subband to which PDSCH belongs.

[0101] In step S13, the step of sending the sub-band direction indication information may include: sending the frequency domain resource allocation domain together with the sub-band direction indication information.

[0102] The frequency domain resource allocation field may include the start and length of the PUSCH in the sub-band to which the PUSCH belongs, or it may include the start and end of the PUSCH in the sub-band to which the PUSCH belongs, or it may include other appropriate information about the PUSCH in the sub-band to which the PUSCH belongs; the frequency domain resource allocation field may include the start and length of the PDSCH in the sub-band to which the PDSCH belongs, or it may include the start and end of the PDSCH in the sub-band to which the PDSCH belongs, or it may include other appropriate information about the PDSCH in the sub-band to which the PDSCH belongs.

[0103] In this embodiment of the invention, a frequency domain resource allocation field is configured, which is used to indicate the start point and length of the PUSCH in the subband to which the PUSCH belongs, or to indicate the start point and length of the PDSCH in the subband to which the PDSCH belongs, so that the terminal can determine the start point and length of the PUSCH or the start point and length of the PDSCH.

[0104] Furthermore, the steps for configuring the frequency domain resource allocation domain may include full configuration or partial configuration.

[0105] In one specific embodiment of the present invention, the step of configuring a frequency domain resource allocation domain may include: configuring a frequency domain resource allocation domain for each subband used for transmitting PUSCH and / or PDSCH, which can better enhance the frequency domain resource allocation domain, especially better support non-contiguous frequency domain resource allocation domains.

[0106] In another specific embodiment of the present invention, the step of configuring the frequency domain resource allocation domain may include: if there is only a PUSCH to be reported by the terminal, then the frequency domain resource allocation domain is configured for each sub-band with the transmission direction of uplink; if there is only a PDSCH to be transmitted, then the frequency domain resource allocation domain is configured for each sub-band with the transmission direction of downlink; if there are both a PUSCH to be reported by the terminal and a PDSCH to be transmitted, then the frequency domain resource allocation domain is configured for all sub-bands.

[0107] In this embodiment of the invention, when it is determined that there is only a PUSCH to be reported by the terminal or only a PDSCH to be sent, the frequency domain resource allocation domain is configured only for the subband of a single transmission direction. This can better enhance the frequency domain resource allocation domain, support non-contiguous frequency domain resource allocation domains, and reduce the number of frequency domain resource allocation domains configured.

[0108] In this embodiment of the invention, configuring the transmission direction of at least a portion of the sub-bands in a portion of the bandwidth, configuring and sending the sub-band direction indication information, enables the terminal to determine the transmission direction of each sub-band in the portion of the bandwidth, thereby achieving that the transmission directions of multiple sub-bands are not completely the same at the same time, which helps to adapt to flexible and ever-changing uplink and downlink service scenarios and fills the gaps in the prior art.

[0109] Furthermore, before configuring the transmission direction of at least a portion of the subbands in the partial bandwidth, the method may further include: determining that an enabling parameter is enabled; wherein the enabling parameter is used to indicate whether to configure the transmission direction of at least a portion of the subbands in the partial bandwidth.

[0110] Specifically, an enable parameter can be introduced, whose value indicates whether it is enabled or disabled.

[0111] When the enable parameter indicates that the transmission is disabled, there will be no indication information indicating whether the transmission direction is uplink or downlink. For example, only the slot configuration can be set, and the implementation can naturally refer to the slot configuration information. The slot configuration can indicate whether the transmission direction of a slot or each symbol within a slot is uplink or downlink.

[0112] When the enable parameter indicates that the transmission is enabled, there may be indication information indicating whether the transmission direction is uplink or downlink, and the slot configuration can also be set.

[0113] The indication information can be precise to whether the transmission direction of each sub-band is uplink or downlink. Therefore, the indication information can be used to cover the configuration information of the time slot configuration in each sub-band.

[0114] Furthermore, before determining the state of the enabling parameter to be enabled, the method may further include: if the remaining energy of the terminal is greater than or equal to a first threshold, then setting the state of the enabling parameter to be enabled; if the remaining energy of the terminal is less than the first threshold, then setting the state of the enabling parameter to be disabled.

[0115] In this embodiment of the invention, when the remaining energy of the terminal is greater than or equal to a first threshold, the enable parameter is set to enabled, and only then is the transmission direction of at least a portion of the sub-bands in the partial bandwidth configured. Otherwise, the existing technology of having the same transmission direction among multiple partial bandwidths at the same time continues to be used. Since the solution of this embodiment of the invention requires a certain amount of energy, it is only executed when the remaining energy of the terminal is large, and not executed when the remaining energy of the terminal is small, which helps to improve the durability of the terminal.

[0116] Furthermore, the signaling for receiving the sub-band direction indication information can be selected from: group general downlink control information (DCI), terminal-specific DCI, radio resource control (RRC), and media access control-control element (MAC-CE).

[0117] Reference Figure 7 , Figure 7 This is a flowchart of another method for indicating the direction of data transmission in an embodiment of the present invention. The other method for indicating the direction of data transmission can be used in a terminal and may further include steps S71 to S72:

[0118] Step S71: Receive subband direction indication information, wherein the subband direction indication information is used to indicate whether the transmission direction of each subband in a portion of the bandwidth is uplink or downlink;

[0119] Step S72: Determine the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information.

[0120] Each sub-band can be independently configured to transmit either uplink or downlink.

[0121] It is understood that, in specific implementation, the method can be implemented using a software program that runs in a processor integrated within the chip or chip module.

[0122] Furthermore, within the aforementioned bandwidth, the transmission direction of the first sub-band is a predefined transmission direction.

[0123] Furthermore, 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 denoted as an effective protection sub-band. The sub-band direction indication information includes the 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 the second sub-band adjacent to the first sub-band is the same as the transmission direction of the first sub-band based on whether there is an effective protection sub-band adjacent to the first sub-band, and determining the transmission direction of the second sub-band; sequentially determining whether the transmission direction of the (i+1)th sub-band adjacent to the i-th sub-band is the same as the transmission direction of the i-th sub-band based on whether there is an effective protection sub-band adjacent to the i-th sub-band, and determining the transmission direction of the (i+1)th sub-band; where i is greater than or equal to 2, and i is a positive integer.

[0124] Further, the indication information of the effective protection sub-band is the sequence number of the effective protection sub-band; or, the indication information of the effective protection sub-band is the sequence number of the sub-band adjacent to the effective protection sub-band and whose frequency domain resources are less than those of the effective protection sub-band; or, the indication information of the effective protection sub-band is the sequence number of the sub-band adjacent to the effective protection sub-band and whose frequency domain resources are greater than those of the effective protection sub-band.

[0125] Furthermore, a second guard sub-band is added between adjacent sub-bands with different transmission directions. The sub-band direction indication information includes indication information for each second guard sub-band. Determining the transmission direction of each sub-band in the partial bandwidth based on the sub-band direction indication information includes: determining whether the transmission direction of the second sub-band adjacent to the first sub-band is the same as the transmission direction of the first sub-band based on whether there is a second guard sub-band adjacent to the first sub-band, and determining the transmission direction of the second sub-band; sequentially determining whether the transmission direction of the (i+1)th sub-band adjacent to the i-th sub-band is the same as the transmission direction of the i-th sub-band based on whether there is a second guard sub-band adjacent to the i-th sub-band, and determining the transmission direction of the (i+1)th sub-band; where i is greater than or equal to 2, and i is a positive integer.

[0126] Further, the indication information of the second protection sub-band is the sequence number of the second protection sub-band; or, the indication information of the second protection sub-band is the sequence number of the sub-band adjacent to the second protection sub-band and whose frequency domain resources are less than those of the second protection sub-band; or, the indication information of the second protection sub-band is the sequence number of the sub-band adjacent to the second protection sub-band and whose frequency domain resources are greater than those of the second protection sub-band.

[0127] Furthermore, the signaling for receiving the sub-band direction indication information is selected from: group general DCI, terminal-specific DCI, RRC, and MAC-CE.

[0128] Furthermore, the method may further include: when receiving the subband direction indication information, simultaneously receiving a configured frequency domain resource allocation field, wherein the frequency domain resource allocation field is used to indicate the start point and length of the PUSCH in the subband to which the PUSCH belongs, or to indicate the start point and length of the PDSCH in the subband to which the PDSCH belongs; determining the start point and length of the PUSCH according to the configured frequency domain resource allocation field, or determining the start point and length of the PDSCH according to the configured frequency domain resource allocation field.

[0129] about Figure 7 For the principles, specific implementation, and beneficial effects of the data transmission method shown, please refer to the preceding text and... Figures 1 to 6 The relevant descriptions of the data transmission methods will not be repeated here.

[0130] Reference Figure 8 , Figure 8 This is a schematic diagram of a data transmission direction indicator device according to an embodiment of the present invention. The data transmission direction indicator device can be used in a base station and may further include:

[0131] Direction configuration module 81 is used to configure the transmission direction of at least a portion of the subbands in a portion of the bandwidth, wherein the transmission direction of each subband is independently configured as uplink or downlink;

[0132] The indication information configuration module 82 is used to configure sub-band direction indication information, which is used to indicate the transmission direction of each sub-band;

[0133] The transmitting module 83 is used to transmit the sub-band direction indication information.

[0134] In specific implementations, the aforementioned device may correspond to a chip with data processing function in a base station; or to a chip module in a base station that includes a chip with data processing function; or to a base station.

[0135] For the principles, specific implementation, and beneficial effects of this data transmission device, please refer to the previous description of the data transmission method; it will not be repeated here.

[0136] Reference Figure 9 , Figure 9 This is a schematic diagram of another data transmission direction indicating device according to an embodiment of the present invention. The other data transmission direction indicating device can be used in a terminal and may further include:

[0137] The receiving module 91 is used to receive subband direction indication information, which is used to indicate whether the transmission direction of each subband in a portion of the bandwidth is uplink or downlink.

[0138] The transmission direction determination module 92 is used to determine the transmission direction of each sub-band in the partial bandwidth according to the sub-band direction indication information;

[0139] Each sub-band can be independently configured to transmit either uplink or downlink.

[0140] In specific implementations, the aforementioned device may correspond to a chip with data processing function in a user equipment; or to a chip module in a user equipment that includes a chip with data processing function; or to a user equipment.

[0141] For the principles, specific implementation, and beneficial effects of this data transmission device, please refer to the previous description of the data transmission method; it will not be repeated here.

[0142] This invention also provides a readable storage medium storing a computer program thereon, which, when executed by a processor, performs the steps of the above-described method. The readable storage medium may be a computer-readable storage medium, such as non-volatile or non-transitory memory, and may also include optical discs, hard disk drives, solid-state drives, etc.

[0143] This invention also provides a communication device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the steps of the above-described method when running the computer program.

[0144] Reference Figure 10 , Figure 10 This is a schematic diagram of the structure of a communication device according to an embodiment of the present invention.

[0145] The device 1000 includes 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 used to execute the computer programs and / or data stored in the memory 1002, implementing the aforementioned... Figure 1 The communication method is illustrated. The coupling in this embodiment is an intermittent coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. As another implementation, the memory 1002 may also be located outside the device 1000. The processor 1001 can operate in conjunction 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.

[0146] In some embodiments, the device 1000 may further include a communication interface 1003 for communicating with other devices via a transmission medium, thereby enabling modules in the device 1000 to communicate with other devices. Exemplarily, the communication interface 1003 may be a transceiver, circuit, bus, module, or other type of communication interface.

[0147] This application embodiment does not limit the connection medium between the communication interface 1003, processor 1001, and memory 1002. For example, in this application embodiment... Figure 10 The memory 1002 and the communication interface 1003 are both connected to the processor 1001. Of course, in this embodiment of the application, the memory 1002, the communication interface 1003, and the processor 1001 can also be connected via a bus, which can be divided into an address bus, a data bus, a control bus, etc.

[0148] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0149] In the embodiments of this application, the memory can be non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). Memory is any other medium capable of carrying or storing desired program code in the form of instructions or data structures, and accessible by a computer, but is not limited thereto. The memory in the embodiments of this application can also be a circuit or any other device capable of implementing storage functions for storing computer programs and / or data.

[0150] The methods provided in this application can be implemented entirely or partially through software, hardware, firmware, or any combination thereof. When implemented in software, they can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., SSDs), etc.

[0151] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0152] Regarding the modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or a combination of both. For example, for various devices and products applied to or integrated into a chip, all of their modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, all of their modules / units can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0153] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A method of indicating a data transmission direction, characterized by, The method comprises the following steps: configuring transmission directions of at least part of subbands in a partial bandwidth, wherein the transmission directions of each subband are independently configured as uplink or downlink; configuring subband direction indication information, wherein the subband direction indication information is used to indicate the transmission directions of each subband; sending the subband direction indication information; wherein, before configuring the transmission directions of at least part of subbands in the partial bandwidth, the method further comprises the following steps: if the remaining energy of the terminal is greater than or equal to a first threshold, setting the state of an enabling parameter as enabled; if the remaining energy of the terminal is less than the first threshold, setting the state of the enabling parameter as disabled; wherein, the enabling parameter is used to indicate whether to configure the transmission directions of at least part of subbands in the partial bandwidth; when the state of the enabling parameter is disabled, only setting the configuration of time slot configuration, and when the state of the enabling parameter is enabled, using the subband direction indication information to override the configuration of the time slot configuration; wherein the time slot configuration is used to indicate whether the transmission directions of time slots or each symbol in the time slots are uplink or downlink.

2. The method of claim 1, wherein, configuring transmission directions of at least part of subbands in a partial bandwidth comprises the following steps: configuring transmission directions of subbands other than a first subband in the partial bandwidth; wherein, the transmission direction of the first subband is a predefined transmission direction.

3. The method of claim 1, wherein, in the partial bandwidth, first guard subbands are added between adjacent subbands with different transmission directions; the configuration of the subband direction indication information comprises the following steps: determining the first guard subbands between adjacent subbands with different transmission directions as effective guard subbands; wherein, the subband direction indication information contains indication information of each effective guard subband.

4. The method of claim 3, wherein: the sequence number of the effective guard subband is used as the indication information of the effective guard subband; or, the sequence number of a subband adjacent to the effective guard subband and smaller in frequency domain resource than the effective guard subband is used as the indication information of the effective guard subband; or, the sequence number of a subband adjacent to the effective guard subband and larger in frequency domain resource than the effective guard subband is used as the indication information of the effective guard subband.

5. The method of claim 1, wherein, in the partial bandwidth, second guard subbands are added between adjacent subbands with different transmission directions; the configuration of the subband direction indication information comprises the following steps: configuring the subband direction indication information contains indication information of each second guard subband.

6. The method of claim 5, wherein: the sequence number of the second guard subband is used as the indication information of the second guard subband; or, the sequence number of a subband adjacent to the second guard subband and smaller in frequency domain resource than the second guard subband is used as the indication information of the second guard subband; or, the sequence number of a subband adjacent to the second guard subband and larger in frequency domain resource than the second guard subband is used as the indication information of the second guard subband.

7. The method of claim 1, wherein, the signaling for sending the subband direction indication information is selected from the following: group common downlink indication information (DCI), terminal-specific DCI, radio resource control (RRC), and medium access control-control element (MAC-CE).

8. The method of claim 1, wherein, before configuring the transmission directions of at least part of subbands in the partial bandwidth, the method further comprises the following steps: determining that a transmission direction of at least one subband in the partial bandwidth needs to be changed.

9. The method of claim 8, wherein, determining that a transmission direction of at least one subband in the partial bandwidth needs to be changed comprises: determining a number of subbands for which uplink transmission is needed according to an uplink buffer status report (BSR) of a terminal; if the number of subbands for which uplink transmission is needed is inconsistent with a number of subbands in the partial bandwidth for which the transmission direction is uplink, determining that a transmission direction of at least one subband in the partial bandwidth needs to be changed.

10. The method of claim 1, wherein, configuring the transmission direction of at least one subband in the partial bandwidth comprises: configuring subbands for which the transmission direction is uplink to be adjacent, and configuring subbands for which the transmission direction is downlink to be adjacent; wherein only two adjacent subbands have different transmission directions.

11. The method of claim 1, wherein before sending the subband direction indication information, the method further comprises: determining whether there is a physical uplink shared channel (PUSCH) to be reported by the terminal and / or a downlink shared physical channel (PDSCH) to be sent; if there is, configuring a subband for transmitting the PUSCH and / or the PDSCH; configuring a frequency domain resource allocation field for indicating a start point and a length of the PUSCH in a subband to which the PUSCH belongs, or for indicating a start point and a length of the PDSCH in a subband to which the PDSCH belongs; sending the subband direction indication information comprises: when sending the subband direction indication information, sending the frequency domain resource allocation field together.

12. The method of claim 11, wherein, configuring the frequency domain resource allocation field comprises: configuring the frequency domain resource allocation field for each subband for transmitting the PUSCH and / or the PDSCH.

13. The method of claim 11, wherein, configuring the frequency domain resource allocation field comprises: if there is only the PUSCH to be reported by the terminal, configuring the frequency domain resource allocation field for each subband for which the transmission direction is uplink; if there is only the PDSCH to be sent, configuring the frequency domain resource allocation field for each subband for which the transmission direction is downlink; if there is both the PUSCH to be reported by the terminal and the PDSCH to be sent, configuring the frequency domain resource allocation field for all subbands.

14. A method of indicating a data transmission direction, the method comprising: comprises: receiving subband direction indication information for indicating a transmission direction of each subband in a partial bandwidth as uplink or downlink; determining a transmission direction of each subband in the partial bandwidth according to the subband direction indication information; wherein the transmission direction of each subband is configured independently as uplink or downlink; wherein if a remaining energy of the terminal is greater than or equal to a first threshold, a state of an enabling parameter is enabled; if the remaining energy of the terminal is less than the first threshold, the state of the enabling parameter is disabled; wherein the enabling parameter is used to indicate whether to configure a transmission direction of at least one subband in the partial bandwidth; when the state of the enabling parameter is disabled, only a time slot configuration is configured, and when the state of the enabling parameter is enabled, the time slot configuration is overridden by the subband direction indication information; wherein the time slot configuration is used to indicate a transmission direction of a time slot or each symbol in the time slot as uplink or downlink.

15. The method of claim 14, wherein The transmission direction of the first sub-band in the partial bandwidth is a predefined transmission direction.

16. The method of claim 15, wherein, A first guard sub-band is added between adjacent sub-bands, and the first guard sub-band between adjacent sub-bands with different transmission directions is recorded as an effective guard sub-band, and the sub-band direction indication information includes indication information of each effective guard sub-band. According to the sub-band direction indication information, the transmission direction of each sub-band in the partial bandwidth is determined, including: According to whether there is an effective guard sub-band adjacent to the first sub-band, it is determined whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as the transmission direction of the first sub-band, and the transmission direction of the second sub-band is determined. According to whether there is an effective guard sub-band adjacent to the i-th sub-band, it is determined whether the transmission direction of an (i+1)-th sub-band adjacent to the i-th sub-band is the same as the transmission direction of the i-th sub-band, and the transmission direction of the (i+1)-th sub-band is determined. Wherein, i is greater than or equal to 2, and i is a positive integer.

17. The method of claim 16, wherein: 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 guard sub-band is the serial number of the sub-band adjacent to the effective guard sub-band and having a smaller frequency domain resource than the effective guard sub-band. Or, The indication information of the effective guard sub-band is the serial number of the sub-band adjacent to the effective guard sub-band and having a larger frequency domain resource than the effective guard sub-band.

18. The method of claim 15, wherein, A second guard sub-band is 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. According to the sub-band direction indication information, the transmission direction of each sub-band in the partial bandwidth is determined, including: According to whether there is a second guard sub-band adjacent to the first sub-band, it is determined whether the transmission direction of a second sub-band adjacent to the first sub-band is the same as the transmission direction of the first sub-band, and the transmission direction of the second sub-band is determined. According to whether there is a second guard sub-band adjacent to the i-th sub-band, it is determined whether the transmission direction of an (i+1)-th sub-band adjacent to the i-th sub-band is the same as the transmission direction of the i-th sub-band, and the transmission direction of the (i+1)-th sub-band is determined. Wherein, i is greater than or equal to 2, and i is a positive integer.

19. The method of claim 18, wherein: The indication information of the second guard sub-band is the serial number of the second guard sub-band. Or, The indication information of the second guard sub-band is the serial number of the sub-band adjacent to the second guard sub-band and having a smaller frequency domain resource than the second guard sub-band. Or, The indication information of the second guard sub-band is the serial number of the sub-band adjacent to the second guard sub-band and having a larger frequency domain resource than the second guard sub-band.

20. The method of claim 14, wherein, The signaling of the sub-band direction indication information is selected from: group common DCI, terminal dedicated DCI, RRC, and MAC-CE.

21. The method of claim 14, wherein, Further comprising: The sub-band direction indication information is received, and a frequency domain resource allocation field is also received, the frequency domain resource allocation field being used for indicating a start point and length of a PUSCH in a sub-band to which the PUSCH belongs, or being used for indicating a start point and length of a PDSCH in a sub-band to which the PDSCH belongs; The start point and length of the PUSCH are determined according to the frequency domain resource allocation field, or the start point and length of the PDSCH are determined according to the frequency domain resource allocation field.

22. A data transmission direction indicator, characterized in that, The method comprises the following steps: A direction configuration module is configured to configure transmission directions of at least part of sub-bands in a partial bandwidth, wherein the transmission directions of the sub-bands are independently configured as uplink or downlink; An indication information configuration module is configured to configure sub-band direction indication information, the sub-band direction indication information being used for indicating the transmission directions of the sub-bands; A sending module is configured to send the sub-band direction indication information. The method further comprises the following steps: If a remaining energy of a terminal is greater than or equal to a first threshold value, a state of an enabling parameter is set as enabled, or if the remaining energy of the terminal is less than the first threshold value, the state of the enabling parameter is set as disabled, before the transmission directions of the at least part of the sub-bands in the partial bandwidth are configured; The enabling parameter is used for indicating whether the transmission directions of the at least part of the sub-bands in the partial bandwidth are configured; When the state of the enabling parameter is disabled, only a time slot configuration is configured, or when the state of the enabling parameter is enabled, the time slot configuration is covered by the sub-band direction indication information; the time slot configuration is used for indicating whether the transmission directions of time slots or each symbol in the time slots are uplink or downlink.

23. A data transmission direction indicator, characterized in that, The method comprises the following steps: A receiving module is configured to receive sub-band direction indication information, the sub-band direction indication information being used for indicating transmission directions of sub-bands in a partial bandwidth as uplink or downlink; A transmission direction determination module is configured to determine the transmission directions of the sub-bands in the partial bandwidth according to the sub-band direction indication information; The transmission directions of the sub-bands are independently configured as uplink or downlink; If a remaining energy of a terminal is greater than or equal to a first threshold value, a state of an enabling parameter is set as enabled, or if the remaining energy of the terminal is less than the first threshold value, the state of the enabling parameter is set as disabled; the enabling parameter is used for indicating whether the transmission directions of at least part of sub-bands in a partial bandwidth are configured; When the state of the enabling parameter is disabled, only a time slot configuration is configured, or when the state of the enabling parameter is enabled, the time slot configuration is covered by the sub-band direction indication information; the time slot configuration is used for indicating whether the transmission directions of time slots or each symbol in the time slots are uplink or downlink.

24. A readable storage medium, having stored thereon a computer program, characterized in that, The computer program is run by the processor to execute the steps of the data transmission direction indication method in any one of claims 1 to 13, or to execute the steps of the data transmission direction indication method in any one of claims 14 to 21.

25. A communication device comprising a memory and a processor, said memory having stored thereon a computer program capable of running on the processor, characterized in that, The processor runs the computer program to execute the steps of the data transmission direction indication method in any one of claims 1 to 13, or to execute the steps of the data transmission direction indication method in any one of claims 14 to 21.

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