Method, device and system for transmitting uplink signal

Abstract

The present application provides a method, device and system for sending an uplink signal, which relates to the field of communication technology. The method for sending an uplink signal includes: obtaining first indication information, and determining to send an uplink signal on the SUL or to send an uplink signal on the uplink UL according to the first indication information. The first indication information is used to indicate an available period of the supplementary uplink SUL, and the SUL available period is a period during which an uplink signal can be sent on the SUL carrier within a preset period. The method is applied to the process of sending an uplink signal through an uplink carrier, which can improve the flexibility in the uplink signal sending process.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, device and system for sending an uplink signal. Background Art

[0002] Future networks, such as the fifth generation (5G) new radio (NR) system deployment, support a reduced capability user equipment (REDCAP UE). The application scenarios of REDCAP UE often include, for example, industrial sensors throughout a factory, cameras for shooting surveillance videos, wearable smart devices (such as smart watches), etc. Since this type of REDCAP UE is low in cost, the number of its deployment may be large, the wireless signal transmission power is low, and data transmission is mainly uplink (for example, the above-mentioned camera device sends a large number of surveillance images through uplink transmission), so a large number of uplink transmissions of a large number of REDCAP UEs may occupy more network uplink transmission capacity. Therefore, it is necessary to expand the network uplink transmission capacity.

[0003] At present, in order to expand the network uplink transmission capacity, NR proposes to support supplementary uplink (SUL) carrier. For details, see Figure 1 (a) In addition to the time division duplex (TDD) uplink (UL) carrier for uplink signal transmission, a cell may also be configured with a SUL carrier. The SUL carrier usually has a lower frequency than the TDD UL carrier, such as Figure 1 In (a), the SUL carrier operates at 1.8 GHz and the TDD UL operates at 3.5 GHz. The low frequency of the SUL reduces the propagation loss of the wireless signal. Therefore, transmitting uplink signals on the SUL carrier often has better transmission quality and a larger coverage range.

[0004] In order to provide low-cost REDCAP UE with better service quality, it is possible to consider allowing REDCAP UE to use SUL carrier, which is conducive to expanding the network uplink transmission capacity and improving uplink coverage. Currently, there are problems of high complexity and poor flexibility when sending uplink signals through SUL. Summary of the invention

[0005] The embodiments of the present application provide a method, device and system for sending an uplink signal, which can improve the flexibility in the uplink signal sending process.

[0006] In a first aspect, an embodiment of the present application provides a method for sending an uplink signal, which can be applied to a terminal or a chip in a terminal. The method includes: obtaining first indication information, and determining to send an uplink signal on a SUL or an uplink signal on an uplink UL according to the first indication information. The first indication information is used to indicate a supplementary uplink SUL available period, and the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period.

[0007] Uplink signals include but are not limited to one or more of the following:

[0008] Uplink data transmitted by the terminal to the base station through the physical uplink shared channel (PUSCH), uplink control information (UCI) transmitted by the terminal to the base station through the physical uplink control channel (PUCCH), and a second reference signal sent by the terminal to the base station. The second reference signal may be, for example but not limited to, a reference signal for channel quality measurement sent by the terminal to the base station based on the configuration of the base station, such as a sounding reference signal (SRS).

[0009] For the convenience of description, in the embodiment of the present application, sending an uplink signal through PUSCH, or sending an uplink signal on PUSCH, can be referred to as sending PUSCH. Similarly, sending an uplink signal (i.e., uplink control information) through PUCCH can be referred to as sending PUCCH. Similarly, the base station schedules the terminal to send an uplink signal on PUSCH, which can be referred to as scheduling PUSCH transmission, and the base station schedules the terminal to send an uplink signal on PUCCH, which can be referred to as scheduling PUCCH transmission.

[0010] It can be seen that based on the above SUL available time period, the terminal device can determine the uplink carrier used to send the uplink signal by itself, which can improve the flexibility of the terminal device in sending the uplink signal.

[0011] In a possible design, determining, according to the first indication information, to send uplink information on the SUL or to send an uplink signal on the UL includes:

[0012] According to the first indication information and the resource indication information, it is determined whether to send the uplink information on the SUL or on the UL; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

[0013] Compared with the prior art that requires the network device to indicate the uplink carrier through the first indication field, in the embodiment of the present application, the terminal device can determine the uplink carrier by itself according to the first indication information and the resource indication information, and the method of determining the uplink carrier is more flexible.

[0014] In an embodiment of the present application, for different uplink signals, the manner in which the terminal device obtains resource indication information may be different, and accordingly, the manner in which the uplink carrier is determined may be different.

[0015] Specifically, for PUSCH and PUCCH, the network device can schedule the terminal device to send PUSCH or PUCCH by sending downlink control information (DCI). The resource indication information is included in the DCI. The terminal device determines the uplink carrier for sending PUSCH or PUCCH based on the resource indication information and the first indication information.

[0016] For configured grant (CG) PUSCH, PUCCH, and SRS, the network device may semi-statically configure the uplink transmission of the terminal device through a first radio resource control (RRC) message. The resource indication information is included in the first RRC message. The terminal device determines the uplink carrier for sending the CG PUSCH or PUCCH or SRS based on the resource indication information and the first indication information.

[0017] In a possible design, determining, according to the first indication information and the resource indication information, to send the uplink information on the SUL or to send the uplink information on the UL includes:

[0018] The starting time is within the SUL available period, and an uplink signal is sent on the SUL; or, the starting time is not within the SUL available period, and an uplink signal is sent on the UL; or,

[0019] The starting time is within the SUL available period, and the time domain resources occupied by the uplink signal are within the SUL available period, and the uplink signal is sent on the SUL; or, the starting time is not within the SUL available period, and the time domain resources occupied by the uplink signal are not within the SUL available period, and the uplink signal is sent on the UL;

[0020] Alternatively, the starting time is within the UL available period, and an uplink signal is sent on the UL; or, the starting time is not within the UL available period, and an uplink signal is sent on the SUL; or,

[0021] The starting time is within the UL available period, and the time domain resources occupied by the uplink signal are within the UL available period, and the uplink signal is sent on the UL; or, the starting time is not within the UL available period, and the time domain resources occupied by the uplink signal are not within the UL available period, and the uplink signal is sent on the SUL;

[0022] The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

[0023] Compared with the prior art that requires the network device to indicate the uplink carrier through the first indication field, in the embodiment of the present application, the terminal device determines the uplink carrier by itself according to the starting time of the uplink signal, and the method of determining the uplink carrier is more flexible.

[0024] In one possible design, the first RRC information is not used for signaling dynamically indicating the time domain resources occupied by the uplink signal, that is, the first RRC information is not used to dynamically indicate the resource indication information, but semi-statically configures the resource indication information. Therefore, the starting time of the uplink signal may not depend on the resource indication information. Therefore, the terminal device not only needs to determine whether the starting time is within the SUL available time period, but also needs to determine whether the starting time is within the time domain resources indicated by the resource indication information, so as to determine the uplink carrier used for uplink transmission.

[0025] Specifically, determining, according to the first indication information and the resource indication information, to send the uplink information on the SUL or to send the uplink information on the UL includes:

[0026] The starting time of the uplink signal is within the SUL available period and within the SUL time domain resources indicated by the resource indication information, and the uplink signal is sent on the SUL; or, the starting time is not within the SUL available period and within the UL time domain resources indicated by the resource indication information, and the uplink signal is sent on the UL;

[0027] Alternatively, the terminal device may also only determine whether the start time of the uplink signal is within the SUL available period, so as to determine the uplink carrier. Specifically, determining whether to send the uplink information on the SUL or on the UL according to the first indication information and the resource indication information includes:

[0028] The starting time of the uplink signal is within the SUL available period, and the uplink signal is sent on the SUL; or the starting time is not within the SUL available period, and the uplink signal is sent on the UL;

[0029] Alternatively, determining, according to the first indication information and the resource indication information, to send the uplink information on the SUL or to send the uplink information on the UL includes:

[0030] The starting time of the uplink signal is within the UL available period and within the UL time domain resources indicated by the resource indication information, and the uplink signal is sent on the UL; or the starting time is not within the UL available period and within the SUL time domain resources indicated by the resource indication information, and the uplink signal is sent on the SUL;

[0031] Alternatively, the terminal device may also only determine whether the start time of the uplink signal is within the UL available period, so as to determine the uplink carrier. Specifically, determining whether to send the uplink information on the SUL or on the UL according to the first indication information and the resource indication information includes:

[0032] If the starting time of the uplink signal is within the UL available period, the uplink signal is sent on the UL; or if the starting time is not within the UL available period, the uplink signal is sent on the SUL;

[0033] The SUL time domain resources are time domain resources on the SUL carrier, and the UL time domain resources are time domain resources on the UL carrier.

[0034] The resource indication information may configure only the SUL time domain resources of the terminal device or only the UL time domain resources.

[0035] Alternatively, in some other embodiments, the resource indication information in the first RRC information can configure the SUL time domain and the UL time domain resources. Specifically, the resource indication information includes the time domain resources that can be used when sending uplink signals (i.e., SRS / CG PUSCH / PUCCH) on the UL carrier, and the time domain resources that can be used when sending uplink signals on the SUL carrier. Compared with the prior art in which only SUL resources or UL resources can be semi-statically configured through RRC, in the present application, SUL time domain resources and UL time domain resources can be semi-statically configured through RRC, so that the terminal device can use SUL time domain resources and UL time domain resources, and the resource utilization rate is improved.

[0036] In one possible design, the method further includes:

[0037] Receiving downlink control information DCI, where the DCI includes resource indication information;

[0038] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0039] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0040] In one possible design, the method further includes:

[0041] Receive first radio resource control RRC information, where the first RRC information includes resource indication information; wherein the first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate a time domain resource occupied by the SRS;

[0042] Or, the first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CGPUSCH;

[0043] Or, the first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0044] In a second aspect, the present application provides a method for sending an uplink signal, which can be applied to a network device or a chip in the network device. The method includes: determining first indication information, and sending the first indication information to a terminal device. The first indication information is used to indicate a supplementary uplink SUL available period, and the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period.

[0045] In one possible design, the method further includes:

[0046] Sending downlink control information DCI to the terminal device, where the DCI includes resource indication information;

[0047] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0048] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0049] In one possible design, the method further includes:

[0050] Sending first radio resource control RRC information to the terminal device, the first RRC information including resource indication information; wherein,

[0051] The first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or,

[0052] The first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or,

[0053] The first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0054] In a third aspect, the present application provides a method for sending an uplink signal, which can be applied to a terminal or a chip in a terminal. The method includes: obtaining first indication information, and determining to send an uplink signal on a SUL or an uplink signal on an uplink UL according to the first indication information. The first indication information is used to indicate a UL available period, and the UL available period is a period during which an uplink signal can be sent on a UL carrier within a preset period.

[0055] In a possible design, the first indication information is also used to indicate the SUL available period.

[0056] In a possible design, determining, according to the first indication information, to send uplink information on the SUL or to send an uplink signal on the UL includes:

[0057] According to the first indication information and the resource indication information, it is determined whether to send the uplink information on the SUL or on the UL; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

[0058] In a possible design, determining, according to the first indication information and the resource indication information, to send the uplink information on the SUL or to send the uplink information on the UL includes:

[0059] The starting time is within the UL available period, and the uplink signal is sent on the UL; or the starting time is not within the UL available period, and the uplink signal is sent on the SUL;

[0060] Or, the starting time is within the SUL available period, and the uplink signal is sent on the SUL; or, the starting time is not within the SUL available period, and the uplink signal is sent on the UL;

[0061] Alternatively, the starting time is within the UL available period, and the time domain resources occupied by the uplink signal are within the UL available period, and the uplink signal is sent on the UL; or, the starting time is not within the UL available period, and the time domain resources occupied by the uplink signal are not within the UL available period, and the uplink signal is sent on the SUL;

[0062] The starting time is within the SUL available period, and the time domain resources occupied by the uplink signal are within the SUL available period, and the uplink signal is sent on the SUL; or, the starting time is not within the SUL available period, and the time domain resources occupied by the uplink signal are not within the SUL available period, and the uplink signal is sent on the UL;

[0063] The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

[0064] In a possible design, determining, according to the first indication information and the resource indication information, to send the uplink information on the SUL or to send the uplink information on the UL includes:

[0065] The starting time of the uplink signal is within the SUL available period and within the SUL time domain resources indicated by the resource indication information, and the uplink signal is sent on the SUL; or, the starting time is not within the SUL available period and within the UL time domain resources indicated by the resource indication information, and the uplink signal is sent on the UL;

[0066] Or, the starting time of the uplink signal is within the UL available period and within the UL time domain resources indicated by the resource indication information, and the uplink signal is sent on the UL; or, the starting time is not within the UL available period and within the SUL time domain resources indicated by the resource indication information, and the uplink signal is sent on the SUL;

[0067] Alternatively, the starting time of the uplink signal is within the UL available period, and the uplink signal is sent on the UL; or, the starting time is not within the UL available period, and the uplink signal is sent on the SUL;

[0068] Alternatively, the starting time of the uplink signal is within the SUL available period, and the uplink signal is sent on the SUL; or, the starting time is not within the SUL available period, and the uplink signal is sent on the UL;

[0069] The SUL time domain resources are time domain resources on the SUL carrier, and the UL time domain resources are time domain resources on the UL carrier.

[0070] The resource indication information may configure only the SUL time domain resources of the terminal device or only the UL time domain resources.

[0071] Alternatively, in some other embodiments, the resource indication information in the first RRC information can configure the SUL time domain and the UL time domain resources. Specifically, the resource indication information includes the time domain resources that can be used when sending uplink signals (i.e., SRS / CG PUSCH / PUCCH) on the UL carrier, and the time domain resources that can be used when sending uplink signals on the SUL carrier.

[0072] In one possible design, the method further includes:

[0073] Receiving downlink control information DCI, where the DCI includes resource indication information;

[0074] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0075] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0076] In one possible design, the method further includes:

[0077] receiving first radio resource control RRC information, the first RRC information including resource indication information; wherein,

[0078] The first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or,

[0079] The first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or,

[0080] The first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0081] In a fourth aspect, the present application provides a method for sending an uplink signal, which can be applied to a network device or a chip in the network device. The method includes: determining first indication information, and sending the first indication information to a terminal device. The first indication information is used to indicate an available period of an additional uplink UL, and the available period of UL is a period during which an uplink signal can be sent on a UL carrier within a preset period.

[0082] In a possible design, the first indication information is also used to indicate the SUL available period.

[0083] In one possible design, the method further includes:

[0084] Sending downlink control information DCI to the terminal device, where the DCI includes resource indication information;

[0085] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0086] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0087] In one possible design, the method further includes:

[0088] Sending first radio resource control RRC information to the terminal device, the first RRC information including resource indication information; wherein,

[0089] The first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or,

[0090] The first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or,

[0091] The first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0092] In a fifth aspect, an embodiment of the present application provides a communication device, which may be a terminal or a chip in a terminal. The device includes: a transceiver module, which is used to obtain first indication information, and determine to send an uplink signal on the SUL or to send an uplink signal on the uplink UL according to the first indication information. The first indication information is used to indicate a supplementary uplink SUL available period, and the SUL available period is a period during which an uplink signal can be sent on the SUL carrier within a preset period.

[0093] In one possible design, a processing module is used to determine whether to send uplink information on the SUL or to send an uplink signal on the UL based on first indication information, including: determining whether to send uplink information on the SUL or to send uplink information on the UL based on the first indication information and resource indication information; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

[0094] In one possible design, the processing module is used to determine, based on the first indication information and the resource indication information, whether to send uplink information on the SUL or to send uplink information on the UL, including: sending an uplink signal on the SUL when the starting time is within the SUL available time period; or sending an uplink signal on the UL when the starting time is not within the SUL available time period;

[0095] The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

[0096] In one possible design, a processing module is used to determine, based on the first indication information and the resource indication information, whether to send uplink information on the SUL or to send uplink information on the UL, including: when a starting moment for the uplink signal is within a SUL available period and within a SUL time domain resource indicated by the resource indication information, sending the uplink signal on the SUL; or, when the starting moment is not within the SUL available period and within the UL time domain resource indicated by the resource indication information, sending the uplink signal on the UL;

[0097] The SUL time domain resources are time domain resources on the SUL carrier, and the UL time domain resources are time domain resources on the UL carrier.

[0098] In one possible design, the resource indication information may configure only the SUL time domain resources of the terminal device or only the UL time domain resources.

[0099] Alternatively, in some other designs, the resource indication information in the first RRC information can configure the SUL time domain and the UL time domain resources. Specifically, the resource indication information includes the time domain resources that can be used when sending uplink signals (i.e., SRS / CG PUSCH / PUCCH) on the UL carrier, and the time domain resources that can be used when sending uplink signals on the SUL carrier. Compared with the prior art in which only SUL resources or UL resources can be semi-statically configured through RRC, in the present application, SUL time domain resources and UL time domain resources can be semi-statically configured through RRC, so that the terminal device can use SUL time domain resources and UL time domain resources, and the resource utilization rate is improved.

[0100] In one possible design, the processing module is further used to control the transceiver module to receive downlink control information DCI, where the DCI includes resource indication information;

[0101] DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by PUSCH; or, DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by uplink feedback corresponding to PDSCH.

[0102] In one possible design, the processing module is also used to control the transceiver module to receive the first wireless resource control RRC information, the first RRC information including resource indication information; wherein the first RRC information is used to configure the sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or, the first RRC information is used to configure the uplink configuration authorization CGPUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or, the first RRC information is used to configure PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0103] In a sixth aspect, the present application provides a communication device, which may be a network device, or may be used in conjunction with a network device to support the network device in implementing its functions, such as a chip in the network device. The device includes: a processing module and a transceiver module;

[0104] A processing module, used to determine first indication information;

[0105] The transceiver module is used to send first indication information to the terminal device. The first indication information is used to indicate a supplementary uplink SUL available period, where the SUL available period is a period during which uplink signals can be sent on the SUL carrier within a preset period.

[0106] In one possible design, the processing module is further used to control the transceiver module to send downlink control information DCI to the terminal device, where the DCI includes resource indication information;

[0107] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0108] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0109] In one possible design, the processing module is further used to control the transceiver module to send first radio resource control RRC information to the terminal device, where the first RRC information includes resource indication information; wherein,

[0110] The first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or,

[0111] The first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or,

[0112] The first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0113] In a seventh aspect, the present application provides a communication device, the device comprising:

[0114] A transceiver module, used for obtaining first indication information;

[0115] The processing module is used to determine whether to send an uplink signal on the SUL or on the uplink UL according to the first indication information. The first indication information is used to indicate a UL available period, which is a period during which an uplink signal can be sent on a UL carrier within a preset period.

[0116] In a possible design, the first indication information is also used to indicate the SUL available period.

[0117] In one possible design, a processing module is used to determine whether to send uplink information on the SUL or to send an uplink signal on the UL based on first indication information, including: determining whether to send uplink information on the SUL or to send uplink information on the UL based on the first indication information and resource indication information; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

[0118] In one possible design, the processing module is used to determine, based on the first indication information and the resource indication information, whether to send uplink information on the SUL or to send uplink information on the UL, including: sending an uplink signal on the UL within a UL available period at a starting moment;

[0119] or, the starting time is not within the UL available period, and an uplink signal is sent on the SUL;

[0120] Or, the starting time is within the SUL available period, and an uplink signal is sent on the SUL; or,

[0121] The starting time is not within the SUL available period, and an uplink signal is sent on the UL;

[0122] The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

[0123] In one possible design, the processing module is used to determine, based on the first indication information and the resource indication information, whether to send the uplink information on the SUL or to send the uplink information on the UL, including: sending the uplink signal on the SUL when the starting time of the uplink signal is within the SUL available period and within the SUL time domain resources indicated by the resource indication information;

[0124] Or, the starting time is not within the SUL available period, and an uplink signal is sent on the UL within the UL time domain resource indicated by the resource indication information;

[0125] Or, the starting time of the uplink signal is within the UL available period, and the uplink signal is sent on the UL within the UL time domain resource indicated by the resource indication information;

[0126] Or, the starting time is not within the UL available period, and the uplink signal is sent on the SUL within the SUL time domain resource indicated by the resource indication information;

[0127] The SUL time domain resources are time domain resources on the SUL carrier, and the UL time domain resources are time domain resources on the UL carrier.

[0128] In one possible design, the resource indication information may configure only the SUL time domain resources of the terminal device or only the UL time domain resources.

[0129] Alternatively, in some other possible designs, the resource indication information in the first RRC information can configure the SUL time domain and the UL time domain resources. Specifically, the resource indication information includes the time domain resources that can be used when sending uplink signals (i.e., SRS / CG PUSCH / PUCCH) on the UL carrier, and the time domain resources that can be used when sending uplink signals on the SUL carrier.

[0130] In one possible design, the processing module is further used to control the transceiver module to receive downlink control information DCI, where the DCI includes resource indication information;

[0131] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0132] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0133] In one possible design, the processing module is further used to control the transceiver module to receive first radio resource control RRC information, where the first RRC information includes resource indication information; wherein,

[0134] The first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or,

[0135] The first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or,

[0136] The first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0137] In an eighth aspect, the present application provides a communication device, which may be a network device, or may be used in conjunction with a network device to support the network device in implementing any one of the functions in the fourth aspect above, for example, the device may be a chip in the network device. The device includes: a processing module and a transceiver module;

[0138] A processing module, used to determine first indication information;

[0139] The transceiver module is used to send first indication information to the terminal device. The first indication information is used to indicate an additional uplink UL available period, where the UL available period is a period during which an uplink signal can be sent on a UL carrier within a preset period.

[0140] In a possible design, the first indication information is also used to indicate the SUL available period.

[0141] In one possible design, the transceiver module is further used to send downlink control information DCI to the terminal device, where the DCI includes resource indication information;

[0142] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH; or,

[0143] The DCI is used to schedule the transmission of the physical downlink shared channel PDSCH, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0144] In a possible design, the transceiver module is further used to send first radio resource control RRC information to the terminal device, where the first RRC information includes resource indication information; wherein,

[0145] The first RRC information is used to configure a sounding reference signal SRS, and the resource indication information is used to indicate the time domain resources occupied by the SRS; or,

[0146] The first RRC information is used to configure the uplink configuration grant CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by the CG PUSCH; or,

[0147] The first RRC information is used to configure the PUCCH, and the resource indication information is used to indicate the time domain resources occupied by the PUCCH.

[0148] In a possible design of any of the above aspects, the SUL available period does not overlap with the UL available period, and the UL available period is a period during which uplink signals can be sent on the UL carrier.

[0149] Compared with the prior art in which the time domain resources of the SUL carrier and the UL carrier overlap, and the uplink carrier to be used by the terminal device can only be explicitly indicated by the first indication field of the DCI sent by the network device, in the present application, the SUL available time period is designed not to overlap with the UL available time period, so that the terminal device can determine the uplink carrier to be used according to the first indication information, the method of determining the uplink carrier is more flexible, and the indication overhead of the DCI can be reduced.

[0150] In a possible design of any of the above aspects, the time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold.

[0151] In this way, by reserving a certain time interval between the SUL available period and the UL available period, the probability that the terminal device needs to quickly switch carriers can be reduced.

[0152] In a possible design of any of the above aspects, the first indication information indicates the SUL available time period through a bitmap; the bitmap includes N bits; the preset period includes M time units; wherein one bit in the bitmap corresponds to at least one time unit, and the value of each bit is used to indicate whether the time unit corresponding to the bit belongs to the SUL available time period; N and M are both positive integers.

[0153] In a possible design of any of the above aspects, the first indication information includes one or more of a duration of a preset period, a start time offset, and a duration;

[0154] The starting time offset is the offset value between the starting time of the SUL available period within a preset period and the starting time of the preset period;

[0155] The duration is the duration of the SUL available period within a preset period.

[0156] In a possible design of any of the above aspects, the DCI does not include a first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate that an uplink signal is transmitted on the UL or SUL. Compared with the prior art which still needs to include the first indication field in the DCI and indicate through the first indication field whether the terminal device transmits an uplink signal through the UL or through the SUL, the DCI payload in the embodiment of the present application is small in number, and the reliability of DCI transmission can be improved.

[0157] In a possible design of any of the above aspects, the DCI includes a first indication field. Different from the prior art, the first indication field of the embodiment of the present application is no longer used to indicate whether the terminal device transmits an uplink signal through UL or transmits an uplink signal through SUL, but is used to indicate other information. In this way, without increasing the DCI load overhead, the DCI can indicate more information and the indication method is more flexible. In addition, the DCI of the embodiment of the present application does not need to change the structure of the existing DCI, the changes to the existing protocol are relatively small, and it can be well compatible with the existing protocol standards. In another possible way, although the DCI includes the first indication field, the terminal device does not need to read, know or parse the first indication field of the DCI, thereby reducing the demodulation complexity of the terminal device for the DCI and shortening the time for the terminal device to parse the DCI.

[0158] In a possible design of any of the above aspects, the bit value in the first indication field is a predefined value, such as 0. As a possible implementation, the first indication field can be used as a check bit to assist the UE in determining whether the DCI is correctly demodulated, thereby improving the transmission reliability of the DCI.

[0159] In a ninth aspect, the present application provides a communication device for implementing the functions of the communication device in any of the above aspects.

[0160] In a tenth aspect, the present application provides a communication device having the function of implementing the method for sending an uplink signal in any of the above aspects. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0161] In the eleventh aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer execution instructions, and when the communication device is running, the processor executes the computer execution instructions stored in the memory to enable the communication device to perform a method for sending an uplink signal as described in any one of the above aspects.

[0162] In a twelfth aspect, a communication device is provided, comprising: a processor; the processor is used to couple with a memory, and after reading instructions in the memory, execute the method for sending an uplink signal as described in any one of the above aspects according to the instructions.

[0163] In a thirteenth aspect, an embodiment of the present application provides a communication device, which may be a chip system, which includes a processor and may also include a memory, for implementing the functions of the method described in any of the above aspects. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0164] In a fourteenth aspect, a communication device is provided, which may be a circuit system, the circuit system including a processing circuit, and the processing circuit is configured to execute a method for sending an uplink signal as described in any one of the above aspects.

[0165] In a fifteenth aspect, an embodiment of the present application further provides a computer-readable storage medium, comprising instructions, which, when executed on a computer, enable the computer to execute any of the above methods.

[0166] In the sixteenth aspect, an embodiment of the present application also provides a computer program product, including instructions, which, when executed on a computer, enables the computer to execute any of the methods described above.

[0167] In the seventeenth aspect, an embodiment of the present application provides a system, the system comprising a communication device for executing the method for sending an uplink signal of the first aspect and any one of the first aspects (i.e., the communication device of the fifth aspect) and a communication device for executing the method for sending an uplink signal of the second aspect and any one of the second aspects (i.e., the communication device of the sixth aspect). Alternatively, the system comprises a communication device for executing the method for sending an uplink signal of the third aspect and any one of the third aspects (i.e., the communication device of the seventh aspect) and a communication device for executing the method for sending an uplink signal of the fourth aspect and any one of the fourth aspects (i.e., the communication device of the eighth aspect). BRIEF DESCRIPTION OF THE DRAWINGS

[0168] Figure 1 A schematic diagram of an application scenario provided by an embodiment of the present application;

[0169] Figure 2-Figure 3 A schematic diagram of a DCI scheduling method provided in an embodiment of the present application;

[0170] Figure 4 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0171] Figure 5-Figure 6 A schematic diagram of a flow chart of a method for sending an uplink signal provided in an embodiment of the present application;

[0172] Figure 7-10 A schematic diagram indicating a SUL / UL available period provided in an embodiment of the present application;

[0173] Figure 11-Figure 12 A schematic diagram of a flow chart of a method for sending an uplink signal provided in an embodiment of the present application;

[0174] Figure 13-Figure 15 A schematic diagram of an application of a method for sending an uplink signal provided in an embodiment of the present application;

[0175] Fig.16 A schematic diagram of a flow chart of a method for sending an uplink signal provided in an embodiment of the present application;

[0176] Fig.17 A schematic diagram of an application of a method for sending an uplink signal provided in an embodiment of the present application;

[0177] Figure 18-19 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0178] The terms "first" and "second" and the like in the specification and drawings of this application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.

[0179] "At least one" means one or more.

[0180] "Plurality" means two or more.

[0181] "And / or" describes the association relationship of associated objects, indicating that there can be three types of relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0182] The character “ / ” generally indicates that the related objects are in an “or” relationship. For example, A / B can mean A or B.

[0183] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0184] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0185] In the specification and drawings of this application, the terms "of", "corresponding, relevant" and "corresponding" may sometimes be used interchangeably. It should be pointed out that when the distinction is not emphasized, the meanings they intend to express are the same.

[0186] The method for sending an uplink signal provided in the embodiment of the present application can be applied to a scenario where there are multiple (two or more) uplink carriers. Figure 4 , is the architecture of the communication system to which the embodiments of the present application are applicable. The communication system includes a network device and one or more terminals (e.g. Figure 4 Terminal 1 to Terminal 6 in the example.

[0187] Among them, the network device involved in the embodiment of the present application is a device deployed in a wireless access network to provide wireless communication functions. Optionally, the network device may refer to a device that communicates with a wireless terminal through one or more cells on the air interface of the access network, wherein the device that implements the function of the network device may be a network device, or a device that supports the network device to implement the function (such as a chip in the network device). Optionally, the network device can manage the attributes of the air interface. The base station device can also coordinate the attribute management of the air interface. The network device includes various forms of macro base stations, micro base stations (also called small stations), relay devices such as relay stations or chips of relay devices, transmission reception points (TRPs), evolved Node Bs (evolved Node Bs, eNBs), next generation network nodes (g NodeBs, gNBs), evolved Node Bs (ng evolved Node Bs, ng-eNBs) connected to the next generation core network, etc. Alternatively, in a distributed base station scenario, the network equipment may be a baseband unit (BBU) and a remote radio unit (RRU); in a cloud radio access network (CRAN) scenario, the network equipment may be a baseband pool (BBU pool) and an RRU.

[0188] Optionally, the terminal involved in the embodiments of the present application may be a REDCAP UE or other types of terminals. Among them, REDCAP UE usually has a narrower bandwidth and a lower transmission rate. Accordingly, the battery life of REDCAP UE is longer, the complexity is lower, and the cost is lower. Typical application scenarios of REDCAP UE include industrial sensor networks, video surveillance, wearable devices (such as smart watches), etc. REDCAP UE can also be called Reduced Capability NR Devices, NR-REDCAP UE, or new wireless light user equipment (NR-light UE), or massive machine type communication (mMTC) UE, or other names. The terminal can also be a wireless terminal or a wired terminal. Including but not limited to vehicle-mounted devices, wearable devices, computing devices, chips built into computing devices or other processing devices connected to wireless modems; it may also include cellular phones, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, smart phones, personal digital assistants (PDA) computers, tablet computers, laptop computers, wireless modems, handheld devices, and wireless local loop (WLL) stations.The wireless terminal may also be a subscriber unit (SU), a subscriber station (SS), a mobile station (MB), a mobile station (mobile), a remote station (RS), a remote terminal (RT), a user terminal (UT), a terminal device (UD), a user equipment (UE), a wireless data card, a subscriber unit (subscriber unit), a machine type communication (MTC) terminal (terminal), a terminal device (terminal device), a customer premise equipment (CPE), an access terminal (AT), an access point (AP), a user agent (UA), etc. In the embodiment of the present application, the device for implementing the function of the terminal may be a terminal, or may be a device that supports the terminal to implement the function (such as a chip in the terminal). For the convenience of description, in the present application, the above-mentioned devices are collectively referred to as terminals.

[0189] It should be noted that the term "communication" in the embodiments of the present application can also be described as "data transmission", "information transmission" or "transmission" and the like.

[0190] The above communication system can be applied to the 5G network currently being developed, for example, to the 5G NR system, or to other networks in the future. The embodiments of the present application do not specifically limit this, as long as there are at least two uplink carriers in the system. Among them, in different networks, the network devices and terminals in the above communication system may correspond to different names. It can be understood by those skilled in the art that the name does not limit the device itself.

[0191] In a wireless communication system, such as an NR communication system, information can be exchanged between a terminal and a base station.

[0192] The signal sent from the base station to the terminal is called the downlink signal. The signal sent from the terminal to the base station is called the uplink signal. Figure 1 (b) The downlink signal includes but is not limited to one or more of the following:

[0193] Downlink data carried by a physical downlink shared channel (PDSCH), DCI carried by a physical downlink control channel (PDCCH), and a first reference signal. The first reference signal includes but is not limited to a reference signal used for UE measurement or synchronization. For example, the first reference signal is a channel state information reference signal (CSI-RS).

[0194] See also Figure 1 (c) The uplink signal includes but is not limited to one or more of the following:

[0195] Uplink data transmitted by the terminal to the base station through PUSCH, uplink control information (UCI) transmitted by the terminal to the base station through PUCCH, and a second reference signal sent by the terminal to the base station. The second reference signal may be, for example but not limited to, a reference signal for channel quality measurement sent by the terminal to the base station based on the configuration of the base station, such as a sounding reference signal (SRS).

[0196] For the convenience of description, in the embodiment of the present application, sending an uplink signal through PUSCH, or sending an uplink signal on PUSCH, can be referred to as sending PUSCH. Similarly, sending an uplink signal (i.e., uplink control information) through PUCCH can be referred to as sending PUCCH. Similarly, the base station schedules the terminal to send an uplink signal on PUSCH, which can be referred to as scheduling PUSCH transmission, and the base station schedules the terminal to send an uplink signal on PUCCH, which can be referred to as scheduling PUCCH transmission.

[0197] As described above, currently, in order to improve the uplink transmission capacity of the network, the SUL carrier is introduced. That is, a lower frequency carrier can be configured in a cell to improve the uplink coverage or uplink capacity. Figure 1 As shown in (a), the conventional UL carrier coverage of the cell is limited, and SUL can be deployed in the cell to improve the uplink coverage at the cell edge so that edge users can perform services normally, or to improve the signal strength at the cell center.

[0198] The UL mentioned in the embodiments of the present application may be written as normal uplink (NUL) or directly as UL in some cases, but the essence is the same, which refers to the UL carrier with the same frequency as the TDD DL carrier in the TDD carrier. The UL in the embodiments of the present application may refer to NUL, UL, or TDD UL, which are collectively referred to as UL hereinafter.

[0199] Currently, there are two main ways to use SUL: one is to switch between UL and SUL based on DCI dynamic indication, and the other is RRC semi-static configuration.

[0200] Specifically, for different uplink signals, SUL is used as follows:

[0201] (1) PUSCH

[0202] Mode 1: Dynamically indicate PUSCH transmission on UL or SUL through DCI. Specifically, the base station sends DCI to the terminal. The DCI includes a first indication field, and the first indication field is used to indicate whether to transmit an uplink signal on UL or SUL.

[0203] Method 2: Semi-statically configure PUSCH to be transmitted only on UL or SUL through RRC signaling. If the UE needs to switch the uplink carrier used by PUSCH, the base station needs to send RRC signaling to the UE for RRC reconfiguration.

[0204] (2) PUCCH

[0205] The PUCCH is semi-statically configured to be transmitted only on one of the UL and SUL through RRC signaling; if the UE needs to switch the uplink carrier used by the PUCCH, the base station needs to resend RRC signaling to the UE for RRC reconfiguration.

[0206] (3)SRS

[0207] The SRS is semi-statically configured to be transmitted only on one of the UL and SUL through RRC signaling. If the UE needs to switch the uplink carrier used by the SRS, the base station needs to resend the RRC signaling to the UE to perform RRC reconfiguration.

[0208] There are certain technical problems in the above-mentioned RRC semi-static configuration method and DCI indication method. Taking PUSCH transmission as an example, in the method of RRC semi-static configuration of PUSCH using SUL / UL carrier, first of all, the flexibility of the base station in scheduling uplink transmission is poor. The base station configures PUSCH only through UL or only through SUL through RRC signaling. This is not conducive to the base station balancing the transmission load between the two carriers of UL and SUL, and has a greater impact on the service quality of the terminal business. For example, in a scenario with a large number of UEs, if PUSCH is transmitted only through UL, when strong interference occurs in the UL carrier, it may cause multiple terminals with UL load to drop the line, and the services of these multiple terminals are all affected. Secondly, when the base station needs to switch the uplink carrier of the UE, it must initiate the RRC reconfiguration process, and the network equipment needs to send RRC configuration signaling to the UE, and the downlink transmission overhead of RRC reconfiguration is large. In addition, the RRC reconfiguration time is long, which may also cause UE service delays and fail to meet the UE's service needs.

[0209] In addition, in order to be able to send uplink signals on the UL carrier and the SUL carrier at any time, the radio frequency devices corresponding to the UL carrier and the SUL carrier will be turned on for a long period of time, which increases the power consumption of the terminal equipment.

[0210] In a method of instructing a terminal to switch an uplink carrier carrying a PUSCH through a DCI, in a scenario such as Figure 2 As shown, DCI is sent on the DL carrier of the NR TDD carrier, and the DCI includes the above-mentioned first indication field, and the first indication field is used to schedule the UE to send PUSCH on the SUL. The UE needs to receive and successfully demodulate the DCI, and switch to the SUL carrier according to the first indication field, and use the SUL carrier to send PUSCH. Among them, Figure 2 In the example, when the time interval GAP is short, the terminal is required to demodulate the DCI immediately after receiving it, and after successful demodulation, it is required to switch to the SUL carrier immediately and send the PUSCH through the SUL carrier. The time interval GAP can be the time interval between the DCI and the PUSCH scheduled by it, such as the time interval between the end time of sending the DCI (i.e., the time when the DCI is sent) and the start time of sending the PUSCH. It can be seen that Figure 2 In the scenario shown, the demodulation performance and carrier switching performance of the terminal are both required to be high, and the terminal is relatively complex to implement.

[0211] And, in Figure 2In the scenario shown, since the first indication field in the DCI is required to indicate on which carrier the uplink signal is sent, the terminal device needs to complete DCI demodulation, and after completing DCI demodulation, warm up the corresponding RF device (such as the RF device corresponding to the SUL carrier). Heating the RF device takes a certain amount of time, and then the heated RF device is loaded to send the uplink signal. Among them, heating and preheating the RF device can be understood as charging or charging the RF device.

[0212] In other scenarios, such as Figure 3 As shown, the base station sends two DCIs, namely DCI1 and DCI2, through the NR TDD carrier, wherein DCI1 schedules the UE to send PUSCH1 on the SUL carrier, and DCI1 schedules the UE to send PUSCH2 on the UL carrier. In this scenario, although the time interval GAP between each DCI and the PUSCH it schedules is large, the GAP between the two PUSCHs, namely PUSCH1 and PUSCH2, is very small. In this way, the terminal is required to switch the carrier to UL immediately after sending PUSCH1 on the SUL carrier, so as to send PUSCH2. The terminal still needs to have a high carrier switching capability, which is not conducive to reducing the complexity and cost of the terminal. Especially when the terminal has a large amount of business and needs to frequently switch between carriers quickly, for example, quickly switch from the SUL carrier to the UL carrier, and then quickly switch back to the SUL carrier, if the carrier switching performance of the terminal is poor, it may cause service delays or even service failures, which does not meet the service needs of the terminal.

[0213] Moreover, in this method, the uplink carrier to be used by the terminal device can only be displayed by means of the first indication field of the DCI sent down by the network device, and the indication method is not flexible enough.

[0214] In addition, in the scenario of DCI dynamic scheduling, in order to be able to send uplink signals on the UL carrier or SUL carrier at any time, the RF devices corresponding to the UL carrier and the SUL carrier will be in the turned-on state for a long period of time, increasing the power consumption of the terminal equipment.

[0215] It can be seen that the current RRC semi-static configuration method and DCI indication method have low flexibility in the process of uplink signal transmission of terminal devices.

[0216] In order to solve the above technical problems, the present application embodiment provides a method for sending an uplink signal. Figure 5 , the method comprises the following steps:

[0217] S501. The terminal device obtains first indication information.

[0218] As a possible implementation, see Figure 6, S501 can be specifically implemented as follows: S501a, the network device determines and sends first indication information to the terminal device, and correspondingly, the terminal device receives the first indication information from the network device.

[0219] As a possible implementation, the network device semi-statically configures the first indication information through high-level signaling, that is, the network device sends the first indication information to the terminal device through high-level signaling. The high-level signaling is, for example, but not limited to, RRC signaling, or a media access control control element (MAC CE). Optionally, S501a can be implemented as: the network device sends a second RRC message to the terminal device, the second RRC message includes the first indication information, that is, the first indication information is part of the RRC information, and accordingly, the terminal device receives the second RRC information from the network device. Alternatively, S501a can be implemented as: the network device sends a MAC CE to the terminal device, the MAC CE includes the first indication information, that is, the first indication information is part of the MAC CE signaling, and accordingly, the terminal device receives the MAC CE from the network device. Among them, the first indication information is used to indicate the SUL available period and / or the UL available period. That is, the first indication information is used to indicate the SUL available period. Alternatively, the first indication information is used to indicate the UL available period. Alternatively, the first indication information is used to indicate the SUL available period and the UL available period. The SUL available period is a period during which uplink signals can be sent on the SUL carrier within a preset period. The UL available period is a period during which uplink signals can be sent on the UL carrier within a preset period. Preferably, the preset period refers to a TDD period, and optionally, the preset period may also refer to N TDD periods, where N is a positive integer.

[0220] The following mainly uses the first indication information indicating the SUL available period as an example for explanation. For the specific implementation of the first indication information indicating the UL available period, please refer to the relevant description of the first indication information indicating the SUL available period.

[0221] It should be noted that "can" means used for, which can be interpreted as "set as", "used for", or "configured for". The SUL available period is the period during which uplink signals can be sent on the SUL carrier, that is, the SUL available period refers to the period on the SUL link that can be used to send uplink signals. The UE can send uplink signals in the SUL available period on the SUL physical link, but the UE does not necessarily have to use the SUL available period to send uplink signals. Specifically, the SUL available period is a set of time domain resources configured on the SUL. Subsequently, when the terminal device needs to send an uplink signal, it can use some of the time domain resources in the configured time domain resource set, or it may not use them. Optionally, the terminal device needs to determine when to actually send an uplink signal within the SUL available period, or whether to send an uplink signal within the SUL available period, based on other signaling from the network device or the terminal device itself.

[0222] Similarly, the UL available period is the configured time domain resource set on the UL. Later, when the terminal device needs to send an uplink signal, it can use some of the time domain resources in the configured time domain resource set, or it can not use them. Optionally, the terminal device needs to determine when to send an uplink signal in the UL available period, or whether to send an uplink signal in the UL available period, based on other signaling of the network device or the terminal device itself.

[0223] like Figure 7 As shown in , the first indication information is used to indicate the SUL available time period shown in the dotted box, and the UE can send an uplink signal on the SUL carrier within the SUL available time period within a preset period.

[0224] In the embodiment of the present application, the first indication information may indicate the above-mentioned SUL available period in one of the following two ways, or in combination of the following two ways.

[0225] Mode 1: The first indication information includes the duration of the above-mentioned preset period (expressed as t cycle denoted by), starting time offset (denoted by t offset denoted by t last Indicates one or more of ).

[0226] The start time offset is the offset value between the start time of the SUL available period within a preset period and the start time of the preset period; the duration is the duration of the SUL available period within a preset period. Optionally, the duration of the preset period is a fixed duration, such as 10 slots, or other durations, or the duration of the preset period is specified to be the duration of the NR TDD frame period, that is, the duration of one frame, or the duration of the preset period is set to other durations.

[0227] In the embodiment of the present application, the duration of the preset period may be referred to as the preset period duration.

[0228] It should be noted that the terminal device usually needs to determine the SUL available time period based on three parameters: the duration of the preset period, the start time offset, and the duration. In step S501a, the network device may indicate some or all of the above three parameters through the first indication information, wherein the parameters not carried by the first indication information may be predefined or preconfigured. For example, the preset period duration is predefined or preconfigured or is part of the system message, and the first indication information only needs to indicate the start time offset and the duration. For another example, the preset period duration and the duration are both predefined or preconfigured, and the SUL available time periods in different preset periods may only differ in the start time offset. At this time, the first indication information only needs to indicate the start time offset.

[0229] In the case where the first indication information includes the above three parameters, the terminal device can determine the SUL available period according to the first indication information.

[0230] In the case where the first indication information includes some of the above three parameters, the terminal device not only executes S501a and receives the first indication information from the network device, but also needs to obtain the stored predefined parameters (or preconfigured parameters). In this way, the terminal device determines the SUL available period based on the first indication information and the predefined parameters. For example, the network device sends the first indication information to the terminal device in step S501a, and the first indication information includes two parameters: the duration of the preset period and the start time offset, and according to the protocol definition, the terminal device is preconfigured with the duration parameter when it leaves the factory. The terminal device can determine the SUL available period based on the parameters (preset period duration and start time offset) and the preconfigured parameters (duration parameter) included in the first indication information received from the network device.

[0231] For example, see Figure 8 (a), the first indication information includes one or more parameters of the start time offset, duration, and preset period. The duration of the preset period is the duration between t1 and t4. The start time offset is the offset value between the start time (i.e., t2) of the SUL available period in the preset period and the start time (i.e., t1) of the preset period; the duration is the duration of the SUL available period in the preset period, i.e., the duration between t2 and t3.

[0232] The terminal device determines the SUL available period according to the first indication information, or the terminal device determines the SUL available period according to the first indication information and a pre-configured parameter in the terminal device.

[0233] The duration, duration, and start time offset of the above-mentioned preset period may be in slot granularity, symbol granularity, slot + symbol granularity, or other time granularity. Among them, for a normal cyclic prefix (NCP), a slot includes 14 symbols. For an extended cyclic prefix (ECP), a slot includes 12 symbols. Taking the duration as an example, under normal CP conditions, the duration may be 4 slots + 7 symbols (i.e., 4.5 slots), and the first indication information may indicate that the number of slots is 4 and the number of symbols is 7. Optionally, the duration may also be an integer number of slots, such as a duration of 4 slots. The duration may also be expressed as M slots + N symbols, where M is greater than or equal to 0, N is greater than or equal to 0, and M and N are integers.

[0234] In the embodiments of the present application, other time lengths may also be time slot granularity, or symbol granularity, or time slot + symbol granularity, or other time granularities, such as subframe, system frame, minute, hour, etc.

[0235] In the embodiment of the present application, the time domain position of the SUL available period is the same in different preset periods. It can also be said that the time domain position of the SUL available period is fixed in different preset periods. For example, Figure 8 As shown in (b), within the first preset cycle length of 10 slots and the second preset cycle length of 10 slots, the start time offsets of SUL available period 1 and SUL available period 2 are both start time offset 1, and the durations are both duration 1.

[0236] In other embodiments, the time domain position of the SUL available period is different in different preset periods. In other words, the time domain position of the SUL available period may change in different preset periods. Possible situations include the following:

[0237] In different preset periods, the SUL available periods may have the same starting time offset and different durations. Figure 8 (c), within the first preset period of 10 slots, the duration of SUL available period 1 is duration 1, and within the second preset period of 10 slots, the duration of SUL available period is duration 2. Or, Figure 8 As shown in (d), in different preset periods, the SUL available time periods may have the same duration and different start time offsets. Figure 8As shown in (e), within different preset periods, the SUL available time period may have different durations and different start time offsets.

[0238] It should be noted that the durations of different preset cycles may be the same or different. Figure 8 (b) or Figure 8 (c) or Figure 8 For example, the duration of different preset cycles is 10 slots. Figure 8 Taking (d) as an example, the durations of different preset cycles are different.

[0239] The first indication information may be in any of the following forms:

[0240] 1. {(preset cycle length t cycle_1 , start time offset t offset_1 , duration t last_1 ), (preset cycle length t cycle_2 , start time offset t offset_2 , duration t last_2 ), ..., (preset cycle length t cycle_R , start time offset t offset_R , duration t last_R )}.

[0241] Where R is a variable, and the value of R is related to the number of SUL available periods. Optionally, the value of R is equal to the number of SUL available periods. When R takes different values, the preset cycle length t cycle_R The values ​​of can be the same or different. Similarly, when R takes different values, the start time offset t offset_R The values ​​of can be the same or different. When R takes different values, the duration t last_R The values ​​can be the same or different.

[0242] 2: You can set the preset cycle time t cycle_R , start time offset t offset_R , duration t last_R Items with the same parameter values ​​among these three parameters are aggregated.

[0243] For example, if the preset cycle length t cycle_R If the two are the same, the first indication information may be indicated in the following form:

[0244] {Preset cycle duration t cycle_R , (starting time offset t offset_1 , duration t last_1 ), (starting time offset t offset_2 , duration t last_2 ), ... (starting time offset t offset_R, duration t last_R )}.

[0245] That is, within multiple identical preset period durations (e.g., the identical preset period duration may be 10 slots), the SUL available period may be individually set. Within each preset period duration, the position of the SUL available period may be the same or different. For example, see Figure 8 (b) or Figure 8 (c) or Figure 8 (e), the preset cycle duration is 10 slots, then in different 10 slots, SUL available time periods with the same or different locations can be set.

[0246] For example, if the preset cycle length t cycle_R , start time offset t offset_R are the same, the first indication information may be indicated in the following form:

[0247] {Preset cycle duration t cycle_R , start time offset t offset_R (Duration t last_1 ), (duration t last_2 ), ... (duration t last_R )}. For example, see Figure 8 (c), the preset period is 10 slots, and within different preset periods of 10 slots, the start time offsets of the SUL available time periods are the same.

[0248] For example, if the preset cycle length t cycle_R , start time offset t offset_R , duration t last_R are the same, the first indication information may be indicated in the following form:

[0249] {Preset cycle duration t cycle_R , start time offset t offset_R , duration t last_R In this case, the position of the SUL available time period is the same in each preset period.

[0250] There may be other examples of Form 2. Regarding other examples of Form 2, the embodiments of the present application will not list them one by one here.

[0251] In this way, by aggregating items with the same parameter values ​​among the three parameters of preset cycle duration, start time offset, and duration, the load of the first indication information can be reduced to save the signaling overhead of sending the first indication information.

[0252] When the first indication information is expressed in form 1 or form 2, some parameters may be omitted. That is, as mentioned above, the first indication information may indicate all or part of the parameters of the duration, start time offset and duration of the preset period. In this case, the specific implementation process of the terminal device determining the SUL available period can be referred to the above embodiment, which will not be repeated here.

[0253] It should be noted that, in the embodiment of the present application, the positions of the SUL available time periods in different preset periods are the same, which means that the positions of the different SUL available time periods relative to the start time of each preset period are the same, and the durations of the different SUL available time periods are the same. Figure 8 Taking (b) as an example, the starting time offset of SUL available period 1 relative to the starting moment of the first preset period is starting time offset 1, and the starting time offset of SUL available period 2 relative to the starting moment of the second preset period is also starting time offset 1, and the durations of SUL available period 1 and SUL available period 2 are both duration 1. In this case, the position of SUL available period 1 in the first preset period and the position of SUL available period 2 in the second preset period are called the same.

[0254] In the above embodiments, a method of indicating a SUL available period is mainly described by taking a preset period including a SUL available period as an example. In other embodiments, a preset period includes multiple SUL available periods. In this case, the first indication information needs to indicate multiple durations within a preset period and multiple start time offsets corresponding to the multiple durations. For example, Figure 8 As shown in (f), the first indication information needs to indicate the duration 1 and the start time offset 1 within the preset period to indicate the SUL available time period 1. The first indication information also needs to indicate the duration 2 and the start time offset 2 within the preset period to indicate the SUL available time period 2.

[0255] Mode 2: the first indication information includes a bitmap, and the first indication information indicates the SUL available period through the bitmap.

[0256] The bitmap includes N bits; the preset period includes M time units; one bit in the bitmap corresponds to at least one time unit, and the value of each bit is used to indicate whether the time unit corresponding to the bit belongs to the SUL available period; N and M are both positive integers. As a possible design, the bit value is 1, indicating that the time unit corresponding to the bit belongs to the SUL available period, and the bit value is 0, indicating that the time unit corresponding to the bit does not belong to the SUL available period. Of course, it is also possible that the bit value is 0, indicating that the time unit corresponding to the bit belongs to the SUL available period, and the bit value is 1, indicating that the time unit corresponding to the bit does not belong to the SUL available period. The embodiment of the present application does not limit what kind of information a bit specifically indicates.

[0257] In the embodiment of the present application, in addition to obtaining the bitmap in the first indication information, the terminal device also needs to obtain the preset cycle duration, the number of time units corresponding to a bit in the bitmap, and one or more parameters in the duration of a time unit. Furthermore, the terminal device determines the SUL available period based on the bitmap in the first indication information and the one or more parameters.

[0258] As a possible design, some or all of the three parameters, namely, the preset cycle duration, the number of time units corresponding to a bit in the bitmap, and the duration of a time unit, can be preconfigured in the terminal device. In the case where only some of the three parameters are preconfigured in the terminal device, the network device can indicate the other parameters (i.e., the parameters not configured in the terminal device) through the first indication information, and the terminal device receives the first indication information from the network device to obtain the other parameters in the first indication information. Exemplarily, the bitmap is as follows Fig. 9 As shown in (a), the terminal receives the first indication information from the network device, and the first indication information includes a bitmap and a preset cycle duration. The bitmap is 0111001000, the number of bitmap bits N=10, and the preset cycle duration tcycle=10 slots. Then, one bit corresponds to one slot in the preset cycle. The value of a bit is used to indicate whether a slot corresponding to the bit belongs to the SUL available period. Assuming that the bit value is 1, it is used to indicate that a slot corresponding to the bit belongs to the SUL available period, then the bitmap is 0111001000, indicating that the 2nd, 3rd, 4th, and 7th slots in the preset cycle belong to the SUL valid period.

[0259] It should be noted that the time unit duration can be set according to the specific application scenario. For example, the time unit duration is set to 1 slot, or 2 slots, or other time units, such as a subframe or a number of symbols. For example, if the time unit duration is one slot, then Fig. 9The preset period (ie, 10 slots) shown in (a) includes M=10 time units.

[0260] In some embodiments, in order to save signaling overhead, the network device reduces the number of bits included in the bitmap when determining the bitmap. Fig. 9 As shown in (b), the network device sends the first indication information including the bitmap 01010 to the terminal device. One bit in the bitmap corresponds to two slots in the preset period. In this way, a 5-bit bitmap can be used to indicate the SUL available period in the preset period, that is, 10 slots. Fig. 9 In (a), a 10-bit bitmap needs to be sent. Fig. 9 In (b), a 5-bit bitmap is sent, which can save signaling overhead.

[0261] In some embodiments, in order to improve the indication accuracy and make the indication method of the SUL available period more flexible, the network device increases the number of bits included in the bitmap when determining the bitmap. Fig. 9 As shown in (a), the network device sends a 10-bit bitmap to the terminal device. Fig. 9 The 5-bit bitmap shown in (b) is Fig. 9 The 10-bit bitmap indication method shown in (a) indicates a finer time granularity.

[0262] In practical applications, the network device may comprehensively consider the two indicators of indication granularity and signaling overhead to determine the number of bits of the bitmap.

[0263] It should be noted that for orthogonal frequency division multiplexing (OFDM) systems (such as NR systems), the time length of symbols and slots is related to the subcarrier spacing (SCS). The length of a symbol or slot is inversely proportional to the width of the SCS. For example, when the SCS is 15kHz, 1 slot is 1ms long, and when the SCS is 30kHz, 1 slot is 0.5ms long. Therefore, in the first indication information, if the SUL available period and / or UL available period is indicated in units of symbol or slot, a reference SCS can also be indicated. In this way, the terminal device can accurately determine the time length of the symbol or slot referred to by the SUL available period or UL available period, thereby determining the time range of the SUL available period or UL available period. Of course, the reference SCS can also be predefined instead of indicating it through the first indication information. The reference SCS is, for example, specified as 15kHz, or the reference SCS is specified to be the same as the reference SCS in the NR TDD cycle configuration.

[0264] As another possible implementation, the network device may indicate multiple SUL available periods and / or UL available periods through one or more first indication information, and then indicate through a first DCI that at least one SUL available period and / or UL available period is effective. The first DCI may be a DCI dedicated to indicating a SUL available period and / or a UL available period, or a DCI for indicating energy saving information (such as a DCI in format 2_6), or other user-specific DCI or group scheduling DCI.

[0265] There may also be other indication methods, which only need to allow the UE to accurately determine at which time it can transmit on the SUL or on the UL.

[0266] It should be noted that the UL available period can be a period in which an uplink signal can be sent on a UL carrier, determined according to the uplink and downlink time slot configuration of the prior art, such as the UL resources indicated in the TDD configuration information (such as tdd-UL-DL-ConfigurationCommon) broadcast and sent by the network device and / or the transmission direction indication information (such as tdd-UL-DL-ConfigurationDedicated) independently configured for the terminal. It can also be a period in which an uplink signal can be sent on a UL carrier indicated by the first indication information. That is, the UL available period is indicated by indicating at least one of a preset period, a duration, and a start time offset. Alternatively, the UL available period is indicated by a bitmap. The specific implementation of indicating the UL available period by the first indication information can refer to the relevant description of indicating the SUL available period by the first indication information, and the embodiments of the present application will not be repeated here.

[0267] In the embodiment of the present application, one piece of first indication information may be used to indicate only the SUL available period, or only the UL available period, or both the SUL available period and the UL available period. In actual implementation, two pieces of first indication information may be used to indicate the SUL available period and the UL available period respectively.

[0268] In the embodiment of the present application, optionally, the SUL available period does not overlap with the UL available period, wherein the UL available period is a period during which uplink signals can be sent on the UL carrier.

[0269] Compared with the prior art in which the time domain resources of the SUL carrier and the UL carrier overlap, and the uplink carrier to be used by the terminal device can only be explicitly indicated by the first indication field sent by the network device, in the present application, the SUL available time period is designed not to overlap with the UL available time period, so that the terminal device can determine the uplink carrier to be used according to the first indication information, the method of determining the uplink carrier is more flexible, and the indication overhead of the DCI can be reduced.

[0270] Furthermore, considering that it often takes some time, such as 140us, for a terminal device to switch carriers between UL and SUL, the embodiment of the present application reserves several intervals in the SUL available period and the UL available period. Specifically, the time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold. The preset threshold can be determined according to a specific application scenario. For example, the preset threshold can be 1-2 symbols, or 1-2 slots, or 1-2 subframes. See Fig.10 (a), the time interval 1 between the SUL available period 1 and the UL available period 1, and the time interval 2 between the UL available period 1 and the SUL available period 2 should be greater than or equal to the preset threshold. In a possible implementation, the preset threshold may be a value related to the SCS. For example, when the SCS is 2 u *15kHz, the preset threshold can be K+N*u symbols, (u, K, N are non-negative integers). A feasible example is K=1, N=1, then when u=0, the SCS is 15kHz, the preset threshold is 1 symbol (i.e. 1ms), and when u=1, the SCS is 30kHz, the preset threshold is 2 symbols (i.e. 1ms). The beneficial effect of this method is that, considering that the time domain length of each symbol is inversely proportional to the subcarrier spacing, in this implementation, the preset threshold is an absolute value and will not change with the change of SCS. For example, in the above example, when the SCS is 15kHz or 30kHz, the preset threshold is 1ms, which allows the preset threshold to be flexibly designed according to the hardware processing speed without being affected by the size of the SCS. Of course, the preset threshold can also be designed in other ways to make it unaffected by the size of the SCS.

[0271] In this way, by reserving a certain time interval between the SUL available period and the UL available period, the probability that the terminal device needs to quickly switch carriers can be reduced. Fig.10 Taking (a) as an example, due to the existence of a reserved time interval, when the terminal device sends an uplink signal through the SUL carrier during the SUL available period 1, it is possible to switch to the UL carrier and send an uplink signal through the UL carrier at least after the time interval 1. In other words, the terminal device does not need to switch from the SUL carrier to the UL carrier in a short time. The carrier switching capability of the terminal device is not required to be high, which can reduce the complexity of the terminal device.

[0272] In other embodiments, Fig.10 (b) A portion of the SUL available period overlaps with the first interval. The first interval is a time interval between DL and UL.

[0273] S502. The terminal device determines to send an uplink signal on the SUL or on the UL according to the first indication information.

[0274] Exemplarily, the terminal device obtains the preset cycle duration, start time offset, and duration in the first indication information. Fig.10 In this way, when the terminal device needs to send an uplink signal, it can send the uplink signal on the SUL carrier during the SUL available period, or send the uplink signal through the UL carrier during the UL available period.

[0275] In the method for sending an uplink signal provided in an embodiment of the present application, a terminal device obtains first indication information, and determines an uplink carrier for sending an uplink signal based on the SUL available time period and / or UL available time period indicated by the first indication information. Compared with the prior art, which usually uses the first indication field sent by the network device to display and indicate the uplink carrier, and the flexibility in the process of sending the uplink signal is not high, in the embodiment of the present application, the terminal device can determine the uplink carrier used for sending the uplink signal according to the SUL available time period and / or UL available time period, which can improve the flexibility in the process of sending the uplink signal.

[0276] Furthermore, since the terminal device knows exactly when it can send uplink signals on the SUL carrier or UL carrier, it can preheat the RF device in advance, giving it more time to start up. In addition, the terminal device does not need to quickly complete DCI demodulation, which can reduce the data processing capability of the terminal device and achieve low complexity and low cost. Fig.13As shown in (a), the terminal device receives DCI, and it may be in the process of demodulating DCI, and it does not know which specific uplink carrier to transmit the uplink signal on. According to the technical solution of the embodiment of the present application, the terminal device already knows clearly at which time it can send the uplink signal on the SUL carrier or the UL carrier, and the moment when the terminal device receives DCI falls within the SUL available time period, then the terminal device can preheat the RF device corresponding to the SUL carrier in advance, and demodulate the DCI while preheating the RF device. When the DCI is successfully demodulated, the terminal device can know that the uplink signal needs to be sent on the SUL carrier according to the resource indication information in the DCI and the SUL available time period. Moreover, since the RF device has been preheated in advance, the RF device is likely to have been preheated or only needs to be preheated for a short time before it can be used to send the uplink signal. It can be seen that after the terminal device receives the DCI, it does not need to complete the DCI demodulation immediately, but can demodulate the DCI while loading the RF device parameters of the corresponding carrier. When the RF device is loaded, or the loading is about to be completed, the DCI may also be demodulated, or it is about to be demodulated. Compared with the prior art, which requires rapid demodulation of DCI in order to understand on which uplink carrier the uplink signal is sent, and then heating the RF device after demodulation, in the embodiment of the present application, the RF device is preheated in advance, so that the RF device can be used in a short time after demodulating the DCI. In addition, since the terminal device does not need to complete DCI demodulation immediately, the complexity and cost of the terminal device can be reduced.

[0277] In addition, in the embodiment of the present application, the terminal device clearly knows when the uplink signal can be sent on the SUL carrier or the UL carrier. Correspondingly, the terminal device clearly knows when the uplink signal will not be sent using the SUL or UL carrier. Therefore, the corresponding radio frequency device can be set to sleep during this period to reduce the energy consumption of the terminal. Fig.10 As shown in (a), through the first indication information, the terminal device knows that the SUL carrier can be used to send uplink signals in the SUL available time period 1 within the preset period, and the SUL carrier will not be used to send uplink signals in the remaining time periods within the preset period. In the remaining time periods, the terminal device can sleep the RF device corresponding to the SUL carrier to reduce power consumption.

[0278] In other embodiments, see Fig.11 , the network device may further perform the following step S1101:

[0279] S1101. The network device sends resource indication information to the terminal device.

[0280] Correspondingly, the terminal device receives resource indication information from the network device.

[0281] The resource indication information is used to indicate the time domain resources occupied by the uplink signal.

[0282] Accordingly, see Fig.11 The above S502 may be implemented as follows: S502a, the terminal device determines to send uplink information on the SUL or on the UL according to the first indication information and the resource indication information.

[0283] It should be noted that the embodiment of the present application does not limit the execution order of S501a and before S1101.

[0284] In the embodiment of the present application, for different uplink signals, the terminal device may obtain resource indication information in different ways, and accordingly, the uplink carrier may be determined in different ways. The following describes how to obtain resource indication information and determine the uplink carrier from the perspective of different uplink signals.

[0285] 1. PUSCH, PUCCH

[0286] For PUSCH and PUCCH, network equipment can dynamically schedule terminal equipment to send PUSCH or PUCCH by sending DCI. Fig.12 , S1101 can be implemented as the following step S1101a:

[0287] S1101a. The network device sends a DCI to the terminal device.

[0288] Correspondingly, the terminal device receives DCI from the network device.

[0289] Wherein, the DCI includes resource indication information. The DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the PUSCH. Alternatively, the DCI is used to schedule PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH (the uplink feedback is carried by the PUCCH).

[0290] Among them, PUCCH carries uplink control information (UCI), and UCI includes hybrid automatic repeat request acknowledgement (HARQ-ACK) information, channel state information, service request information, etc.

[0291] As a possible implementation, see Fig.12 (a), the above S502a can be specifically implemented as the following step S502a1:

[0292] S502a1. If the starting time is within the SUL available period, an uplink signal is sent on the SUL; or, if the starting time is not within the SUL available period, an uplink signal is sent on the UL.

[0293] Alternatively, the uplink carrier to be used may also be determined according to the UL available period and resource indication information. Fig.12 (b), the above S502a can be specifically implemented as the following step S502a2, when the starting time is within the UL available time period, an uplink signal is sent on the UL; or, when the starting time is not within the UL available time period, an uplink signal is sent on the SUL.

[0294] Or, in other embodiments, see Fig.12 (c), the above S502a can be specifically implemented as the following step S502a3, if the starting time is within the SUL available time period, and the time domain resources occupied by the uplink signal are within the SUL available time period, the uplink signal is sent on the SUL. If the starting time is not within the SUL available time period, and the time domain resources occupied by the uplink signal are not within the SUL available time period, the uplink signal is sent on the UL.

[0295] Alternatively, the uplink carrier to be used may also be determined according to the UL available period and resource indication information. Fig.12 (d), the above S502a can be specifically implemented as the following step S502a4: when the starting time is within the UL available time period and the time domain resources occupied by the uplink signal are within the UL available time period, the uplink signal is sent on the UL; or, when the starting time is not within the UL available time period and the time domain resources occupied by the uplink signal are not within the UL available time period, the uplink signal is sent on the SUL.

[0296] The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

[0297] Take the example of a network device sending DCI to a terminal device and scheduling the terminal device to send PUSCH, see Fig.13 (a), the terminal device receives a DCI, which is used to schedule the PUSCH. The terminal device reads the resource indication information in the DCI, and determines the time domain resources occupied by the uplink signal on the PUSCH (or simply referred to as the time domain resources occupied by the PUSCH) and the starting time of the uplink signal on the PUSCH occupying the time domain resources (i.e. Fig.13 t5 shown in (a). Fig.13 As shown in (a), the starting time t5 of the PUSCH is within the SUL available period, and the terminal device transmits the PUSCH on the SUL carrier. Fig.13As shown in (b), if the starting time t6 of PUSCH is not within the SUL available period, the terminal device transmits PUSCH on UL.

[0298] In some embodiments, the predefined network device will not schedule uplink signals to be sent within the time interval. The time interval refers to the time interval between the SUL available period and the UL available period. In other embodiments, the network device can schedule uplink signals within the time interval, but it is generally considered that the scheduled transmission is invalid, or the terminal device performs uplink transmission on the nearest transmittable time domain resource after receiving the DCI. For example, Fig.13 As shown in (a), the start time t5' of PUSCH is within the time interval between the SUL available period and the UL available period. One possible solution is to consider that the scheduled transmission is invalid and the terminal device may not transmit the PUSCH. Another possible solution is that the terminal device performs uplink transmission on the nearest transmittable time domain resource after receiving the DCI, that is, Fig.13 The PUSCH is transmitted through the UL carrier during the UL available period in (a).

[0299] Compared with the prior art in which the terminal device can only send PUCCH on the SUL or UL carrier, in the embodiment of the present application, the terminal device can use the resources of SUL and UL to send PUCCH, which makes better use of resources and reduces the probability of rapid carrier switching, thereby reducing the complexity and cost of the terminal device.

[0300] The starting time when the uplink signal occupies the time domain resource may be the first symbol or the first slot of the uplink signal occupying the time domain resource, or other time units, which are not limited in the embodiments of the present application.

[0301] Take the example of a network device sending DCI to a terminal device and scheduling the terminal device to send PDSCH, that is, scheduling PDSCH transmission, as shown in Fig.13(c), the network device sends DCI to the terminal device to schedule PDSCH. The terminal device receives the DCI and receives PDSCH according to the DCI. After receiving the PDSCH, it needs to feedback the hybrid automatic repeat request acknowledgement (HARQ-ACK) according to whether the PDSCH is received successfully. Among them, the HARQ-ACK fed back by the terminal device is carried by PUCCH. Specifically, the DCI received by the terminal device includes information for indicating that the PDSCH occupies time domain resources, and the terminal receives the PDSCH in the corresponding time period according to the information. The DCI also includes resource indication information, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback (i.e., HARQ-ACK) corresponding to the PDSCH. Exemplarily, the resource indication information can be in the form of: PDSCH and HARQ feedback time indication (PDSCH-to-HARQ_feedback timingindicator) field. The PDSCH and HARQ feedback time indication field indicates the time interval between the HARQ-ACK and the PDSCH. In this way, the terminal device can determine the time domain resources occupied by HARQ-ACK and the starting time of HARQ-ACK occupying the time domain resources (i.e., the time domain resources of PDSCH and the PDSCH and HARQ feedback time indication domain) according to the time domain resources of PDSCH. Fig.13 t7 shown in (c)). Fig.13 As shown in (c), the starting time of HARQ-ACK occupying time domain resources is t7, and t7 is within the SUL available period, so the terminal device sends the HARQ-ACK on the SUL carrier. Fig.13 As shown in (d), the starting time when HARQ-ACK occupies time domain resources is t8. If t8 is not within the SUL available time period, the terminal device sends the HARQ-ACK on the UL carrier.

[0302] In an embodiment of the present application, optionally, the DCI does not include the first indication field, or the number of bits of the first indication field is 0. The first indication field is used to indicate that the uplink signal is transmitted on the UL or SUL. In this way, compared with the prior art that still needs to include the first indication field in the DCI and indicate through the first indication field whether the terminal device transmits the uplink signal through the UL or through the SUL, the DCI payload in the embodiment of the present application is small, which can improve the reliability of DCI transmission.

[0303] Optionally, the DCI includes a first indication field. Different from the prior art, the first indication field of the embodiment of the present application is no longer used to indicate whether the terminal device transmits an uplink signal through UL or through SUL, but is used to indicate other information. In this way, without increasing the DCI load overhead, the DCI can indicate more information and the indication method is more flexible. In addition, the DCI of the embodiment of the present application does not need to change the structure of the existing DCI, the changes to the existing protocol are relatively small, and it can be well compatible with the existing protocol standards. In another possible way, although the DCI includes the first indication field, the terminal device does not need to read, know or parse the first indication field of the DCI, thereby reducing the demodulation complexity of the terminal device for the DCI and shortening the time for the terminal device to parse the DCI.

[0304] In some other possible designs, the bit value in the first indication field is a predefined value, such as 0. As a possible implementation, the first indication field can be used as a check bit to assist the UE in determining whether the DCI is correctly demodulated, thereby improving the transmission reliability of the DCI.

[0305] In the embodiment of the present application, the first indication field may also be referred to as a UL / SUL indication field, or a carrier indication field, or other names, which is not limited in the embodiment of the present application.

[0306] In some embodiments, when the network device schedules uplink transmission through DCI, the time domain resources occupied by the uplink signal are configured by default to be within the SUL available period or the UL available period. In this case, the terminal device may not determine whether the time domain resources occupied by the uplink signal are within the SUL available period or the UL available period, but determine the uplink carrier by only determining whether the starting time is within the SUL available period or the UL available period. Of course, the network device may not configure the time domain resources occupied by the uplink signal to be within the SUL available period or the UL available period by default. Specifically, the method for determining the uplink carrier can be found in Fig.12 S502a1 shown in (a), or, see Fig.12 S502a2 shown in (b).

[0307] In this embodiment, the network device defaults to configure the time domain resources occupied by the uplink signal to be within the SUL available period or the UL available period as an example. Fig.15 (c), the network device configures the time domain resources occupied by the uplink signal in the UL available period, and the terminal device determines the starting time of PUSCH3 and PUSCH4 respectively to determine on which type of carrier PUSCH3 and PUSCH4 need to be sent.

[0308] In other embodiments, when scheduling, the network device may configure the time domain resources occupied by the uplink signal to be within the SUL available period or the UL available period, or may configure the time domain resources occupied by the uplink signal to be outside the SUL available period or the UL available period. In this case, the terminal device not only needs to determine whether the start time of the uplink signal is within the SUL available period or the UL available period, but also needs to determine whether the time domain resources occupied by the uplink signal are within the SUL available period or the UL available period, so as to determine the uplink carrier. Specifically, the method for determining the uplink carrier can be seen in Fig.12 S502a3 shown in (c) or, see Fig.12 S502a4 shown in (d).

[0309] In this embodiment, as an optional design, the terminal device does not send uplink signals beyond the SUL available period, and / or does not send (or drops) uplink signals beyond the UL available period. Fig.14 As shown in (a), the time domain resources occupied by PUSCH1 are within the SUL available period, and the starting time of PUSCH1 is within the SUL available period. Therefore, the terminal device sends PUSCH1 on the SUL carrier. Although the starting time of PUSCH2 is within the SUL available period, the time domain resources it occupies exceed the SUL available period. Therefore, the terminal device does not send PUSCH2. Fig.14 As shown in (b), the required occupation period of PUSCH4 exceeds the UL available period, and the terminal device does not send the PUSCH4.

[0310] In this embodiment, as an optional design, for uplink signals that exceed the SUL available period in the current preset cycle, the terminal device delays sending the uplink signal. As a possible design, the terminal device sends the uplink signal in the SUL available period in the next preset cycle. And / or, for uplink signals that exceed the UL available period, the terminal device delays sending the uplink signal. As a possible design, the terminal device sends the uplink signal in the UL available period in the next preset cycle. Fig.15 As shown in (a), if the required occupation period of PUSCH2 exceeds the SUL available period 1 in the preset cycle 1, the terminal device sends the PUSCH2 in the SUL available period 2 in the preset cycle 2. Fig.15 As shown in (b), if the required occupation period of PUSCH4 exceeds the available period of UL1, the terminal device sends the PUSCH4 in the available period of UL2 of the preset cycle 2. In this way, the terminal device can delay the transmission of the corresponding uplink signal, reducing the probability of packet loss of the terminal device service.

[0311] In this embodiment, in addition to discarding part of the uplink signal and delaying the sending of the uplink signal, the terminal device can also send the uplink signal in other ways. Fig.14 and Fig.15 In the corresponding implementation, PUSCH2 may be a repetition of PUSCH1, that is, the same PUSCH is sent twice in the same DCI scheduling, or PUSCH2 and PUSCH1 are different PUSCHs from different DCI schedulings, or two PUSCHs from the same DCI scheduling, and the present invention does not limit this. Similarly, PUSCH4 and PUSCH3 may be the same or different PUSCHs, and the present invention does not limit this.

[0312] Compared with the prior art that requires the network device to indicate the uplink carrier through the first indication field, in the embodiment of the present application, the terminal device can determine the uplink carrier by itself according to the starting time of the uplink signal and the first indication information, and the method of determining the uplink carrier is more flexible.

[0313] 2. CG PUSCH, PUCCH, SRS

[0314] For uplink signals on CG PUSCH, PUCCH, and SRS, the network device can configure uplink transmission through the first RRC information. Fig.16 , S1101 can be implemented as the following step S1101b:

[0315] S1101b. The network device sends first RRC information to the terminal device.

[0316] Correspondingly, the terminal device receives the first RRC information from the network device.

[0317] The first RRC information includes resource indication information; the first RRC information is used to configure SRS, and the resource indication information is used to indicate the time domain resources occupied by SRS. Or, the first RRC information is used to configure uplink CG PUSCH, and the resource indication information is used to indicate the time domain resources occupied by CG PUSCH. Or, the first RRC information is used to configure PUCCH, and the resource indication information is used to indicate the time domain resources occupied by PUCCH.

[0318] In the embodiment of the present application, the first RRC information is used to configure one or more of CG PUSCH, SRS, and PUCCH. Specifically, the network device sends the first RRC information to the terminal device, and the first RRC message includes resource indication information.

[0319] In one possible design, the resource indication information configures the terminal device with CG PUSCH resources only on the UL carrier or only on the SUL carrier, so that the terminal device sends CG PUCCH only on the UL or SUL carrier. And / or, the first RRC information configures the terminal device with SRS resources only on the UL carrier or only on the SUL carrier, and the terminal device sends SRS only on the UL or SUL carrier. And / or, the first RRC information configures the terminal device with PUCCH resources only on the UL carrier or only on the SUL carrier, and the terminal device sends PUCCH only on the UL carrier or the SUL carrier.

[0320] For the convenience of description, the time domain resources on the SUL carrier may be referred to as SUL time domain resources. The time domain resources on the UL carrier may be referred to as UL time domain resources. Accordingly, in the above implementation, the resource indication information only configures the SUL time domain resources of the terminal device, so that the terminal device only sends uplink signals through the SUL carrier. Alternatively, the resource indication information only configures the UL time domain resources of the terminal device, and the terminal device only sends uplink signals through the UL carrier.

[0321] Take the example of configuring the terminal device to send uplink signals only on the SUL carrier using the first RRC information. Specifically, the network device can include resource indication information in the first RRC information, and the resource indication information is specifically used to indicate the relevant configuration on the SUL carrier. Optionally, the resource indication information indicates the SUL carrier frequency band, or other SUL carrier related information. The resource indication information also indicates the time domain resources occupied by the uplink signal. In this way, the terminal device receives and parses the first RRC information, reads the resource indication information carried by the first RRC information, and learns that it can only send uplink signals on the indicated time domain resources through the SUL carrier of the corresponding frequency band.

[0322] In a possible implementation, the network device determines the above-mentioned first indication information, and determines the resource indication information according to the SUL available time period and / or UL available time period indicated by the first indication information. Specifically, if the resource indication information configures the terminal device to send an uplink signal only on the SUL carrier, the time domain resources occupied by the uplink signal indicated by the resource indication information are the SUL available time period, or part of the SUL available time period. If the resource indication information configures the terminal device to send an uplink signal only on the UL carrier, the time domain resources occupied by the uplink signal indicated by the resource indication information are the UL available time period, or part of the UL available time period.

[0323] Take the configuration of PUCCH as an example. Fig.17(a), the network device sends a second RRC message or MAC CE to the terminal device to configure the SUL available period, that is, SUL available period 1 and SUL available period 2. The second RRC message or MAC CE can also be used to configure the UL available period. The network device sets a part of the SUL available period 1 and a part of the SUL available period 2 ( Fig.17 The first RRC information is sent to the terminal device, and the first RRC information carries resource indication information, which is used to indicate that the terminal device sends PUCCH only on the SUL carrier and is used to indicate the time domain resources that can be used by PUCCH ( Fig.17 (indicated by a bold box in (a)). Subsequently, when the network device needs to switch the uplink carrier of the terminal device, it can send a first RRC message to the terminal device again, and the first RRC message is used to reconfigure the uplink carrier of the terminal device. Specifically, it is used to instruct the terminal device to send PUCCH only on the UL carrier, and is also used to indicate the time domain resources specifically occupied by PUCCH. Here, only the configuration of PUCCH is taken as an example. The specific configuration implementation process of CG PUSCH and SRS is the same as the PUCCH configuration principle, and will not be repeated.

[0324] As another possible implementation, the network device determines resource indication information, and the resource indication information is independent of the above-mentioned SUL available time period and / or UL available time period. The resource indication information is used to indicate the time domain resources occupied by the uplink signal. In the case where the resource indication information configures the terminal device to send the uplink signal only on the SUL carrier, the time domain resources occupied by the uplink signal may be the SUL available time period or a part of the SUL available time period. Alternatively, part of the time domain resources occupied by the uplink signal may also overlap with the SUL available time period. Alternatively, the time domain resources occupied by the uplink signal include the SUL available time period. In the case where the resource indication information configures the terminal device to send the uplink signal only on the UL carrier, the relationship between the time domain resources occupied by the uplink signal and the UL available time period may be any of the following:

[0325] The time domain resources occupied by the uplink signal are the SUL available time period, the time domain resources occupied by the uplink signal are part of the SUL available time period, the time domain resources occupied by the uplink signal include the SUL available time period, and part of the time domain resources occupied by the uplink signal may also overlap with the SUL available time period.

[0326] Taking the configuration of PUCCH as an example, the first RRC information includes resource indication information, and the resource indication information configures the time domain resources occupied by PUCCH, such as Fig.17 (b). It can be seen that Fig.17The resource indication information in (a) is determined according to the SUL available period and / or the UL available period, and the time domain resource indicated is usually different from a part of the SUL available period and / or the UL available period. Fig.17 The resource indication information in (b) may indicate a time domain resource which may be a partial period of the SUL available period and / or the UL available period, or a period which partially overlaps with the SUL available period and / or the UL available period, or other situations.

[0327] In some embodiments, the resource indication information in the first RRC information configures the time domain resources occupied by the uplink signal, but in fact, the uplink signal on the configured time domain resources may not be in the SUL available time period or the UL available time period. In this case, the uplink signal is still not sent. That is to say, in this embodiment, the terminal device not only needs to determine whether the time domain characteristics of the uplink signal meet the time domain requirements of the resource indication information (and within the configured time domain resources), but also needs to determine whether the time domain characteristics of the uplink signal meet the time domain requirements of the SUL available time period or the UL available time period (and within the SUL available time period or the UL available time period). Only when the time domain characteristics of the uplink signal meet the time domain requirements of the resource indication information and the time domain requirements of the SUL available time period or the UL available time period, is it determined to send the uplink signal on a certain type of carrier.

[0328] In this embodiment, specifically, the above S502a determines whether to send an uplink signal on the SUL or on the UL according to the first indication information and the resource indication information, see Fig.16 (a) can be specifically implemented as the following step S502a5:

[0329] S502a5. If the starting time of the uplink signal is within the SUL time domain resource indicated by the resource indication information and within the SUL available period, the terminal device sends the uplink signal on the SUL carrier. Alternatively, if the starting time of the uplink signal is not within the SUL available period and the starting time of the uplink signal is within the UL time domain resource indicated by the resource indication information, the terminal device sends the uplink signal on the UL carrier.

[0330] Alternatively, the UL available period can be used to determine the uplink carrier to be used. Fig.16 (b), the above S502a can be implemented as S502a6. If the starting time of the uplink signal is within the UL time domain resource indicated by the resource indication information and within the UL available period, the terminal device sends the uplink signal on the UL carrier. Alternatively, if the starting time of the uplink signal is not within the UL available period, and the starting time of the uplink signal is within the SUL time domain resource indicated by the resource indication information, the terminal device sends the uplink signal on the SUL carrier.

[0331] In other embodiments, unlike the above-mentioned CG PUSCH, PUCCH, etc., even if the corresponding time domain resources are configured, the uplink signal on the corresponding time domain resources may not be sent. In the scenario where the network device sends SRS to the terminal device, the characteristic of the periodic SRS time domain resource is that once the time domain resource is configured, the terminal device will definitely send SRS periodically on the time domain resource. It can also be understood that the configured time domain resources are within the SUL available period or the UL available period by default.

[0332] In this embodiment, specifically, see Fig.16 (c), the above S502a can be implemented as S502a7, if the starting time of the uplink signal is within the SUL available time period, the uplink signal is sent on the SUL. Alternatively, if the starting time of the uplink signal is not within the SUL available time period, the terminal device sends the uplink signal on the UL.

[0333] Alternatively, the terminal device may also use the UL available period to determine the uplink carrier to be used. Fig.16 (d), the above S502a can be implemented as S502a8, if the starting time of the uplink signal is within the UL available period, the uplink signal is sent on the UL. Alternatively, if the starting time of the uplink signal is not within the UL available period, the terminal device sends the uplink signal on the SUL.

[0334] For example, see Fig.17 (b), the PUCCH that arrives at time t9, because time t9 is within the SUL available period and belongs to the time domain resources occupied by PUCCH, the terminal device sends the PUCCH on the SUL carrier. The PUCCH that needs to be sent at time t10, because t10 is not within the SUL available period, the terminal device does not send the PUCCH on the SUL carrier. Similarly, the terminal device does not send the PUCCH at time t11 and time t12 on the SUL carrier. For another example, Fig.17 In (b), the PUCCH arriving at time t13 is not within the SUL available period, and t13 is within the UL time domain resources indicated by the resource indication information. Therefore, the terminal device sends the PUCCH on the UL carrier. Here, for the specific implementation of sending PUCCH on the UL carrier, please refer to the relevant description of sending PUCCH on the SUL carrier, which will not be repeated here.

[0335] Different from the above resource indication information that only configures the SUL time domain resources of the terminal device or only configures the UL time domain resources, in other embodiments, the resource indication information in the first RRC information configures the SUL time domain and the UL time domain resources. Specifically, the resource indication information includes the time domain resources that can be used when sending uplink signals (i.e., SRS / CG PUSCH / PUCCH) on the UL carrier, and the time domain resources that can be used when sending uplink signals on the SUL carrier. The resources on the SUL carrier may be different from the resources on the UL carrier. For example, see Fig.17 (c), the resource indication information in the first RRC information configures the time domain resources that can be used to send PUCCH on the SUL carrier, and configures the time domain resources that can be used to send PUCCH on the UL carrier (as indicated by the arrow).

[0336] In this case, the above S502a determines, according to the first indication information and the resource indication information, whether to send an uplink signal on the SUL or to send an uplink signal on the UL. The specific implementation principle can be found in the above Fig.16 The corresponding embodiment, that is, if the starting moment of the uplink signal is within the SUL time domain resources indicated by the resource indication information and within the SUL available time period, the terminal device sends the uplink signal on the SUL carrier. Alternatively, if the starting moment of the uplink signal is not within the SUL available time period, but within the UL time domain resources indicated by the resource indication information, the terminal device sends the uplink signal on the UL carrier. Alternatively, if the starting moment of the uplink signal is within the UL time domain resources indicated by the resource indication information and within the UL available time period, the terminal device sends the uplink signal on the UL carrier. Alternatively, if the starting moment of the uplink signal is not within the UL available time period, but the starting moment of the uplink signal is within the SUL time domain resources indicated by the resource indication information, the terminal device sends the uplink signal on the SUL carrier. For example, see Fig.17 (c), t13 is not within the SUL available period, but within the UL time domain resources indicated by the resource indication information, then the terminal device sends the PUCCH at time t13 on the UL carrier.

[0337] In other embodiments, all parameters in the first indication information may also be predefined through a protocol.

[0338] In this case, S501, obtaining the first indication information can be replaced by the following steps: the terminal device obtains pre-configuration parameters, and the pre-configuration parameters include a preset cycle duration, a duration, and a start time offset.

[0339] S502 may be replaced by the following step: the terminal device determines to send an uplink signal on a SUL carrier or to send an uplink signal on a UL carrier according to pre-configured parameters.

[0340] The above only uses the terminal device and the network device as examples to illustrate the method for sending uplink signals in the embodiments of the present application. The methods and functions implemented by the network device in the above-mentioned various method embodiments can also be implemented by a chip that can be used for the network device, or other combination devices and components with the above-mentioned network device functions. The methods and functions implemented by the terminal device can also be implemented by a chip that can be used for the terminal, or other combination devices and components with the above-mentioned terminal device functions.

[0341] The embodiment of the present application can divide the above-mentioned communication device (the communication device can be the above-mentioned terminal device or network device) into functional modules or functional units according to the above-mentioned method example. For example, each functional module or functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated module can be implemented in the form of hardware or in the form of software functional modules or functional units. Among them, the division of modules or units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

[0342] Fig.18 The schematic block diagram of the communication device 1100 provided in the embodiment of the present application is as follows. The communication device 1100 includes a processing module 1110. Optionally, a transceiver module 1120 may also be included.

[0343] Exemplarily, the communication device 1100 may be a terminal device, or a chip applied to the above terminal device, or other combination devices, components, etc. having the functions of the above terminal device. Alternatively, the communication device 1100 may be the above network device, or a chip applied to the network device, or other combination devices, components, etc. having the functions of the above network device.

[0344] When the communication device 1100 is a terminal device or a network device, the transceiver module 1120 may be a transceiver, which may include an antenna and a radio frequency circuit, etc. The processing module 1110 may be a processor (or a processing circuit), such as a baseband processor, which may include one or more CPUs.

[0345] When the communication device 1100 is a component having the above-mentioned terminal device function or network device function, the transceiver module 1120 may be a radio frequency unit, and the processing module 1110 may be a processor (or a processing circuit), such as a baseband processor.

[0346] When the communication device 1100 is a chip system, the transceiver module 1120 may be an input / output interface of a chip (e.g., a baseband chip), and the processing module 1110 may be a processor (or a processing circuit) of the chip system, which may include one or more central processing units. It should be understood that the processing module 1110 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component (or, referred to as a processing circuit), and the transceiver module 1120 may be implemented by a transceiver or a transceiver-related circuit component.

[0347] Taking the communication device 1100 as an example for implementing the functions of the above-mentioned terminal device, the processing module 1110 can be used to execute Figure 6 or Fig.11 or Fig.12 or Fig.16 In the embodiment shown, all operations except the sending and receiving operations, such as executing Figure 6 As shown in S502, Fig.11 S502a shown, Fig.12 S502a1, S502a2, S502a3, S502a4 shown, Fig.16 S502a5, S502a6, S502a7, S502a8 shown, read pre-configured parameters, and / or other steps of the embodiment of the present application. The transceiver module 1120 can be used to execute Figure 6 As shown in S501a, Fig.11 The S1101 shown, Fig.12 The S1101a shown, Fig.16 S1101b shown, and / or other steps of the embodiments of the present application.

[0348] Specifically, the transceiver module 1120 is used to obtain first indication information, where the first indication information is used to indicate a supplementary uplink SUL available period, where the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period;

[0349] The processing module 1110 is used to determine whether to send an uplink signal on the SUL or on the uplink UL according to the first indication information.

[0350] As an optional implementation manner, the SUL available period does not overlap with the UL available period, and the UL available period is a period during which uplink signals can be sent on the UL carrier.

[0351] As an optional implementation manner, the time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold.

[0352] As an optional implementation manner, the first indication information includes one or more of a duration of a preset period, a start time offset, and a duration.

[0353] The start time offset is the offset value between the start time of the SUL available period in a preset cycle and the start time of the preset cycle. The duration is the duration of the SUL available period in a preset cycle.

[0354] As an optional implementation manner, the processing module 1110 is configured to determine, according to the first indication information, whether to send uplink information on the SUL or to send an uplink signal on the UL, including:

[0355] The processing module 1110 is used to determine whether to send uplink information on the SUL or on the UL according to the first indication information and the resource indication information; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

[0356] As an optional implementation manner, the processing module 1110 is configured to determine, according to the first indication information and the resource indication information, whether to send the uplink information on the SUL or to send the uplink information on the UL, including:

[0357] The processing module 1110 is configured to send an uplink signal on the SUL if the starting time is within the SUL available period; or send an uplink signal on the UL if the starting time is not within the SUL available period;

[0358] Or, the starting time is within the SUL available period, and the time domain resources occupied by the uplink signal are within the SUL available period, and the uplink signal is sent on the SUL;

[0359] or, the starting time is not within the SUL available period, and the time domain resources occupied by the uplink signal are not within the SUL available period, and the uplink signal is sent on the UL;

[0360] The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

[0361] As an optional implementation manner, the transceiver module 1120 is further configured to receive downlink control information DCI, where the DCI includes resource indication information;

[0362] DCI is used to schedule PUSCH transmission, and resource indication information is used to indicate the time domain resources occupied by PUSCH;

[0363] Or, the DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

[0364] As an optional implementation, the DCI does not include the first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate transmission of an uplink signal on the UL or on the SUL.

[0365] For other functions that the communication device 1100 can implement, please refer to Figure 6 The embodiment shown or Figure 5 or Fig.11 or Fig.12 or Fig.16 Or the related introduction of other shown embodiments will not be elaborated in detail.

[0366] Taking the communication device 1100 as an example for implementing the functions of the above network device, the processing module 1110 can be used to execute Figure 6 or Fig.11 or Fig.12 or Fig.16 All operations except the sending and receiving operations in the embodiment shown, such as determining the first indication information and the resource indication information, and / or other steps of the embodiment of the present application. The sending and receiving module 1120 can be used to perform Figure 6 As shown in S501a, Fig.11 The S1101 shown, Fig.12 The S1101a shown, Fig.16 S1101b shown, and / or other steps of the embodiments of the present application.

[0367] Specifically, the processing module 1110 is used to determine first indication information, where the first indication information is used to indicate a supplementary uplink SUL available period, where the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period.

[0368] The transceiver module 1120 is used to send first indication information to the terminal device.

[0369] As an optional implementation manner, the SUL available period does not overlap with the UL available period, and the UL available period is a period during which uplink signals can be sent on the UL carrier.

[0370] As an optional implementation manner, the time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold.

[0371] As an optional implementation manner, the first indication information includes one or more of a duration of a preset period, a start time offset, and a duration.

[0372] The start time offset is the offset value between the start time of the SUL available period in a preset cycle and the start time of the preset cycle; the duration is the duration of the SUL available period in a preset cycle.

[0373] As an optional implementation, the transceiver module 1120 is further used to send downlink control information DCI to the terminal device, where the DCI includes resource indication information.

[0374] DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by PUSCH; or, DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by uplink feedback corresponding to PDSCH.

[0375] As an optional implementation, the DCI does not include the first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate transmission of an uplink signal on the UL or on the SUL.

[0376] All relevant contents of each step involved in the above method embodiment can be cited in Fig.18 The functional description of the corresponding functional modules in the illustrated device will not be repeated here.

[0377] See also Fig.19 , is another schematic diagram of a communication device provided in an embodiment of the present application, which is used to implement the operations of the terminal device and the network device in the above embodiments. The communication device 1900 includes: a processor 1910 and a communication interface 1920. Optionally, the communication device also includes a memory 1930. The communication interface 1920 is used to implement communication with other devices.

[0378] In the above embodiments, the method executed by the terminal device can be implemented by the processor 1910 calling a program stored in a memory (which can be a terminal device, a network device, or an external memory). That is, the device for implementing the function of the terminal device (referred to as a communication device in the embodiment of the present application) may include a processor 1910, which calls the program in the memory to execute the method executed by the terminal device in the above method embodiments. The method executed by the network device can be implemented by the processor 1910 calling a program stored in a memory (which can be a terminal device, a network device, or an external memory). That is, the device for implementing the function of the network device (referred to as a communication device in the embodiment of the present application) may include a processor 1910, which calls the program in the memory to execute the method executed by the network device in the above method embodiments.

[0379] The processor here can be an integrated circuit with signal processing capabilities, such as a CPU. The device for realizing the functions of terminal equipment and network equipment can be implemented by configuring one or more integrated circuits to implement the above method. For example: one or more application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), or one or more digital signal processors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA), etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementation methods can be combined.

[0380] For example, Fig.18 The function / implementation process of the processing module 1110 can be achieved by Fig.19 The processor 1910 in the communication device 1900 shown calls the computer execution instructions stored in the memory 1930 to implement, Fig.18 The function / implementation process of the transceiver module 1120 can be Fig.19 The communication interface 1920 in the communication device 1900 shown in FIG. 1 is implemented.

[0381] Since the network device, components in the network device, terminal device, and components in the terminal device provided in the embodiments of the present application can execute the above-mentioned method of sending uplink signals, the technical effects that can be obtained can be referred to the above-mentioned method embodiments and will not be repeated here.

[0382] An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed, each step performed by the terminal device or network device in the method flow shown in the above method embodiment is executed.

[0383] Among them, the computer readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a register, a hard disk, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application-specific integrated circuit (ASIC). In the embodiments of the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0384] Optionally, an embodiment of the present application further provides a chip system, which is applied to a terminal device, and the chip system includes a processor for supporting the terminal device to implement the above-mentioned uplink signal transmission method. In a possible design, the chip system also includes a memory. The memory is used to store program instructions and data necessary for the terminal. Of course, the memory may not be in the chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

[0385] The embodiment of the present application also provides another chip system, which is applied to a network device. The chip system includes a processor for supporting the network device to implement the above-mentioned uplink signal transmission method. In a possible design, the chip system also includes a memory. The memory is used to store program instructions and data necessary for the network device. Of course, the memory may not be in the chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

[0386] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for sending an uplink signal, characterized in that: include: Acquire first indication information, where the first indication information is used to indicate a supplementary uplink SUL available period, where the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period; According to the first indication information, it is determined to send an uplink signal on the SUL, or to send an uplink signal on the uplink UL; and the time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold.

2. The method for transmitting an uplink signal according to claim 1, characterized in that: The UL available period is a period during which an uplink signal can be sent on a UL carrier.

3. The method for sending an uplink signal according to claim 1 or 2, characterized in that: The first indication information includes one or more of the duration, the start time offset and the duration of the preset period; The starting time offset is an offset value between the starting time of the SUL available period within a preset cycle and the starting time of the preset cycle; The duration is the duration of the SUL available period within a preset cycle.

4. The method for sending an uplink signal according to claim 1 or 2, characterized in that: Determining, according to the first indication information, to send uplink information on the SUL or to send an uplink signal on the UL includes: According to the first indication information and the resource indication information, it is determined whether to send the uplink information on the SUL or on the UL; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

5. The method for transmitting an uplink signal according to claim 4, characterized in that: Determining, according to the first indication information and the resource indication information, to send uplink information on the SUL or to send uplink information on the UL includes: The uplink signal is sent on the SUL at the starting time within the SUL available period; or, The starting time is not within the SUL available period, and the uplink signal is sent on the UL; or, The starting time is within the SUL available time period, and the time domain resources occupied by the uplink signal are within the SUL available time period, and the uplink signal is sent on the SUL; or, The starting time is not within the SUL available time period, and the time domain resources occupied by the uplink signal are not within the SUL available time period, sending the uplink signal on the UL; The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

6. The method for transmitting an uplink signal according to claim 4, characterized in that: The method further comprises: receiving downlink control information DCI, where the DCI includes the resource indication information; The DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the PUSCH; or, The DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

7. The method for transmitting an uplink signal according to claim 6, characterized in that: The DCI does not include a first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate that the uplink signal is transmitted on UL or SUL.

8. A method for sending an uplink signal, characterized in that: include: Determine first indication information, where the first indication information is used to indicate a supplementary uplink SUL available period, where the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period; and a time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold; Send the first indication information to the terminal device.

9. The method for transmitting an uplink signal according to claim 8, characterized in that: The UL available period is a period during which an uplink signal can be sent on a UL carrier.

10. The method for sending an uplink signal according to claim 8 or 9, characterized in that: The first indication information includes one or more of the duration, the start time offset and the duration of the preset period; The starting time offset is an offset value between the starting time of the SUL available period within a preset cycle and the starting time of the preset cycle; The duration is the duration of the SUL available period within a preset cycle.

11. The method for sending an uplink signal according to claim 8 or 9, characterized in that: The method further comprises: Sending downlink control information DCI to the terminal device, where the DCI includes resource indication information; The DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the PUSCH; or, The DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

12. The method for transmitting an uplink signal according to claim 11, characterized in that: The DCI does not include a first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate that the uplink signal is transmitted on UL or SUL.

13. A communication device, characterized in that: include: A transceiver module, used to obtain first indication information, where the first indication information is used to indicate a supplementary uplink SUL available period, where the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period; A processing module is used to determine, according to the first indication information, whether to send an uplink signal on the SUL or to send an uplink signal on the uplink UL; the time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold.

14. The communication device according to claim 13, characterized in that: The UL available period is a period during which an uplink signal can be sent on a UL carrier.

15. The communication device according to claim 13 or 14, characterized in that: The first indication information includes one or more of the duration, the start time offset and the duration of the preset period; The starting time offset is an offset value between the starting time of the SUL available period within a preset cycle and the starting time of the preset cycle; The duration is the duration of the SUL available period within a preset cycle.

16. The communication device according to claim 13 or 14, characterized in that: The processing module is used to determine, according to the first indication information, whether to send uplink information on the SUL or to send an uplink signal on the UL, including: The processing module is used to determine whether to send uplink information on the SUL or on the UL according to the first indication information and resource indication information; the resource indication information is used to indicate the time domain resources occupied by the uplink signal.

17. The communication device according to claim 16, characterized in that: The processing module is used to determine whether to send uplink information on the SUL or on the UL according to the first indication information and the resource indication information, including: The processing module is configured to send the uplink signal on the SUL within the SUL available period at a starting time; or, The starting time is not within the SUL available period, and the uplink signal is sent on the UL; or, The starting time is within the SUL available time period, and the time domain resources occupied by the uplink signal are within the SUL available time period, and the uplink signal is sent on the SUL; or, The starting time is not within the SUL available time period, and the time domain resources occupied by the uplink signal are not within the SUL available time period, sending the uplink signal on the UL; The starting time is the starting time of the time domain resources occupied by the uplink signal, and the starting time is determined according to the resource indication information.

18. The communication device according to claim 16, characterized in that: The transceiver module is further used to receive downlink control information DCI, where the DCI includes the resource indication information; The DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the PUSCH; or, The DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

19. The communication device according to claim 18, characterized in that: The DCI does not include a first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate that the uplink signal is transmitted on UL or SUL.

20. A communication device, characterized in that: include: a processing module, configured to determine first indication information, wherein the first indication information is used to indicate a supplementary uplink SUL available period, wherein the SUL available period is a period during which an uplink signal can be sent on a SUL carrier within a preset period; and a time interval between the SUL available period and the UL available period is greater than or equal to a preset threshold; A transceiver module is used to send the first indication information to the terminal device.

21. The communication device according to claim 20, characterized in that: The UL available period is a period during which an uplink signal can be sent on a UL carrier.

22. The communication device according to claim 20 or 21, characterized in that: The first indication information includes one or more of the duration, the start time offset and the duration of the preset period; The starting time offset is an offset value between the starting time of the SUL available period within a preset cycle and the starting time of the preset cycle; The duration is the duration of the SUL available period within a preset cycle.

23. The communication device according to claim 20 or 21, characterized in that: The transceiver module is further used to send downlink control information DCI to the terminal device, where the DCI includes resource indication information; The DCI is used to schedule PUSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the PUSCH; or, The DCI is used to schedule physical downlink shared channel PDSCH transmission, and the resource indication information is used to indicate the time domain resources occupied by the uplink feedback corresponding to the PDSCH.

24. The communication device according to claim 23, characterized in that The DCI does not include a first indication field, or the number of bits in the first indication field is 0; wherein the first indication field is used to indicate that the uplink signal is transmitted on UL or SUL.

25. A communication device, characterized in that: The invention comprises a processor connected to a memory, the memory being used to store a computer program, and the processor being used to execute the computer program stored in the memory, so that the communication device executes the method for sending an uplink signal as described in any one of claims 1 to 7, or the method for sending an uplink signal as described in any one of claims 8 to 12.

26. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the method for sending an uplink signal according to any one of claims 1 to 7, or the method for sending an uplink signal according to any one of claims 8 to 12 is implemented.

27. A communication system, characterized in that: A communication device comprising any one of claims 13 to 19, and a communication device comprising any one of claims 20 to 24.

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