A communication method and a communication device

Abstract

Embodiments of this application disclose a communication method and a communication device, relating to the field of communications. In a carrier aggregation scenario, the scheduling complexity of a network device can be reduced. The method includes: a terminal device receives high-layer signaling from a network device, where the high-layer signaling includes first information and second information, the first information is used to indicate first uplink time-domain resources of a first carrier, and the second information is used to indicate that the first carrier and a second carrier perform uplink transmission in a time-division manner; the terminal device determines second uplink time-domain resources of the second carrier according to the first uplink time-domain resources of the first carrier and the second information, where the first uplink time-domain resources and the second uplink time-domain resources do not overlap in the time domain; the terminal device sends an uplink signal on some or all of the resources in the second uplink time-domain resources.

Description

Technical Field

[0001] Embodiments of this application relate to the field of communications, and in particular, to a communication method and a communication device. Background Art

[0002] To meet the bandwidth requirements of the fifth-generation (5G) communication system, carrier aggregation (CA) technology is also introduced in the 5G new radio (NR). Multiple consecutive or non-consecutive component carriers (CCs) can be aggregated into a larger bandwidth to meet the rate requirements of the 5G communication system. th Taking the aggregation of two carriers as an example, the terminal device can perform uplink transmission through the primary carrier and the secondary carrier. The base station can send scheduling information related to the primary carrier and the secondary carrier through downlink control information (DCI). Only after receiving the DCI can the terminal determine when to perform uplink transmission through the primary carrier and when to perform services through the secondary carrier, and can also adjust the radio frequency device to the operating frequency point of the primary carrier or the operating frequency point of the secondary carrier.

[0003] When the terminal device operates in the single uplink operation (SUO) mode and the network device schedules services on the primary carrier and the secondary carrier in sequence, the terminal can only rely on the DCI to determine the radio frequency switching time point and cannot perform radio frequency switching in advance, which may affect the uplink services scheduled later. In addition, the network device needs to consider the radio frequency switching time during scheduling, which greatly increases the scheduling complexity of the network device.

[0004] When the terminal device operates in the single uplink operation (SUO) mode and the network device schedules services on the primary carrier and the secondary carrier in sequence, the terminal can only rely on the DCI to determine the radio frequency switching time point and cannot perform radio frequency switching in advance, which may affect the uplink services scheduled later. In addition, the network device needs to consider the radio frequency switching time during scheduling, which greatly increases the scheduling complexity of the network device. Summary of the Invention

[0005] Embodiments of this application provide a communication method and a communication device, which can reduce the scheduling complexity of the network device in the carrier aggregation scenario.

[0006] In a first aspect, a communication method is provided, including: the terminal device receives high-layer signaling from the network device, where the high-layer signaling includes first information and second information. The first information is used to indicate the first uplink time-domain resource of the first carrier, and the second information is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner. The terminal device can also determine the second uplink time-domain resource of the second carrier according to the first uplink time-domain resource of the first carrier and the second information, where the first uplink time-domain resource and the second uplink time-domain resource do not overlap in the time domain. The terminal device finally sends an uplink signal on some or all of the resources in the second uplink time-domain resource.

[0007] In the method provided by the embodiments of the present application, the network device may instruct the terminal to operate in the SUO mode. The terminal device may determine the uplink time-domain resources of the secondary carrier (e.g., the second carrier described in the embodiments of the present application) according to the uplink time-domain resources configured by the network device for the primary carrier (e.g., the first carrier described in the embodiments of the present application). The time point of radio frequency switching may be determined according to the uplink time-domain resources of the secondary carrier and the uplink time-domain resources of the primary carrier. It can be seen that while supporting the primary carrier to perform uplink transmission in the dual-antenna mode, the terminal can determine when to perform radio frequency switching without receiving the DCI for scheduling the primary carrier and the DCI for scheduling the secondary carrier, and can perform radio frequency switching in advance to avoid affecting the uplink services scheduled later. In addition, the network device does not need to consider the switching time of the UE during scheduling, which greatly reduces the scheduling complexity.

[0008] In a second aspect, a communication method is provided, including: The network device determines first information and second information. The first information is used to indicate the first uplink time-domain resources of the first carrier, and the second information is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner; The network device sends a high-layer signaling to the terminal device, where the high-layer signaling includes the first information and the second information.

[0009] In a third aspect, a communication device is disclosed, including: A communication unit, configured to receive high-layer signaling from a network device, where the high-layer signaling includes first information and second information. The first information is used to indicate the first uplink time-domain resources of the first carrier, and the second information is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner; A processing unit, configured to determine the second uplink time-domain resources of the second carrier according to the first uplink time-domain resources of the first carrier and the second information, where the first uplink time-domain resources and the second uplink time-domain resources do not overlap in the time domain; The communication unit is further configured to send an uplink signal on some or all of the resources in the second uplink time-domain resources.

[0010] In a fourth aspect, a communication device is provided, including: A processing unit, configured to determine first information and second information. The first information is used to indicate the first uplink time-domain resources of the first carrier, and the second information is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner; A communication unit, configured to send a high-layer signaling to the terminal device, where the high-layer signaling includes the first information and the second information.

[0011] In a fifth aspect, a communication device is provided, including at least one processor and a memory, the at least one processor is coupled to the memory; The memory is configured to store a computer program;

[0012] The at least one processor is configured to execute the computer program stored in the memory, so that the device performs the method described in the first aspect and any implementation manner of the first aspect, or the method described in the second aspect and any implementation manner of the second aspect as above.

[0013] In a sixth aspect, a computer-readable storage medium is provided, including: instructions stored in the computer-readable storage medium; when the computer-readable storage medium runs on the communication device described in the third aspect and any implementation manner of the third aspect as above, the communication device is caused to execute the communication method described in the first aspect and any implementation manner of the first aspect as above.

[0014] In a seventh aspect, a computer-readable storage medium is provided, including: instructions stored in the computer-readable storage medium; when the computer-readable storage medium runs on the communication device described in the fourth aspect and any implementation manner of the fourth aspect as above, the communication device is caused to execute the communication method described in the second aspect and any implementation manner of the second aspect as above.

[0015] In an eighth aspect, a wireless communication device is provided. The communication device includes a processor, for example, applied in the communication device to implement the method described in the first aspect and any implementation manner of the first aspect. The communication device may be, for example, a chip system. In a feasible implementation manner, the chip system further includes a memory, and the memory is used to store program instructions and data necessary for implementing the functions of the method described in the first aspect as above.

[0016] In a ninth aspect, a wireless communication device is provided. The communication device includes a processor, for example, applied in the communication device to implement the functions or methods involved in the second aspect and any implementation manner of the second aspect. The communication device may be, for example, a chip system. In a feasible implementation manner, the chip system further includes a memory, and the memory is used to store program instructions and data necessary for implementing the functions of the method described in the second aspect as above.

[0017] The chip system in the above aspects may be a system on chip (SOC), or a baseband chip, etc. The baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, and an interface module, etc.

[0018] In a tenth aspect, a communication system is provided, including a network device and a terminal device. The network device is configured to determine first information and second information, where the first information is used to indicate the first uplink time-domain resource of a first carrier, and the second information is used to indicate that the first carrier and a second carrier perform uplink transmission in a time-division manner; the network device sends a high-layer signaling to the terminal device, where the high-layer signaling includes the first information and the second information.

[0019] The terminal device is configured to receive the high-layer signaling from the network device, and may further determine the second uplink time-domain resource of the second carrier according to the first uplink time-domain resource of the first carrier indicated by the high-layer signaling and the second information, where the first uplink time-domain resource and the second uplink time-domain resource do not overlap in the time domain.

[0020] The terminal device is further configured to send an uplink signal on some or all of the resources in the second uplink time-domain resource.

[0021] In an eleventh aspect, a terminal device is provided, including a processor, a transceiver, and a first antenna and a second antenna connected to the transceiver. The transceiver is configured to receive a high-layer signaling from the network device, where the high-layer signaling includes the first information and the second information, the first information is used to indicate the first uplink time-domain resource of a first carrier, and the second information is used to indicate that the first carrier and a second carrier perform uplink transmission in a time-division manner; the processor is configured to determine the second uplink time-domain resource of the second carrier according to the first uplink time-domain resource of the first carrier and the second information, where the first uplink time-domain resource and the second uplink time-domain resource do not overlap in the time domain; the transceiver is further configured to send an uplink signal on some or all of the resources in the second uplink time-domain resource through the second antenna.

[0022] Further, the first antenna is configured to perform uplink transmission on the first carrier, and the second antenna is configured to perform uplink transmission on the first carrier and the second carrier in a time-division manner.

[0023] The above aspects may further include the following optional embodiments.

[0024] Optionally, the first carrier is a 3.5 GHz primary carrier, and the second carrier is a 2.1 GHz secondary carrier.

[0025] Optionally, the first uplink time-domain resource and the second uplink time-domain resource are not continuous in the time domain.

[0026] In the embodiments of the present application, the terminal device may obtain the uplink time-domain resource that can be used for the second carrier by taking the inverse of the first uplink time-domain resource, and the terminal device also needs to reserve the time for radio frequency switching. Therefore, the second uplink time-domain resource for the second carrier and the first uplink time-domain resource are not continuous in the time domain.

[0027] Optionally, the first carrier is a 3.5 GHz primary carrier, and the second carrier is a 2.1 GHz secondary carrier.

[0028] Optionally, the time interval between the first uplink time-domain resource and the second uplink time-domain resource in the time domain is the handover time, and the handover time is the time for switching the first carrier to the second carrier, or the time for switching the second carrier to the first carrier.

[0029] In the embodiments of the present application, when the terminal device determines the uplink time-domain resource of the second carrier, it also reserves the time for carrier handover, so that the terminal device can complete the radio frequency handover in advance, so as to smoothly perform uplink services on the second carrier or the second carrier.

[0030] Optionally, the first uplink time-domain resource is continuous in the time domain and the second uplink time-domain resource is discontinuous in the time domain. The handover time before the first uplink time-domain resource is the time for switching the second carrier to the first carrier, and the handover time after the first uplink time-domain resource is the time for switching the first carrier to the second carrier; or, the first uplink time-domain resource is continuous in the time domain and the second uplink time-domain resource is continuous in the time domain. The handover time between the first uplink time-domain resource and the second uplink time-domain resource is the time for switching the second carrier to the first carrier or the time for switching the first carrier to the second carrier; or, the first uplink time-domain resource is discontinuous in the time domain and the second uplink time-domain resource is continuous in the time domain. The handover time before the second uplink time-domain resource is the time for switching the first carrier to the second carrier, and the handover time after the second uplink time-domain resource is the time for switching the second carrier to the first carrier; or, the first uplink time-domain resource is discontinuous in the time domain and the second uplink time-domain resource is discontinuous in the time domain. The handover time between the first uplink time-domain resource and the second uplink time-domain resource is the time for switching the first carrier to the second carrier or the time for switching the second carrier to the first carrier.

[0031] The embodiments of the present application also provide various possibilities for the handover time, which provides support for the terminal device to perform radio frequency handover before the scheduled uplink service.

[0032] Optionally, the second information is a single uplink transmission field in the high-layer signaling, and the first state of the single uplink transmission field is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner.

[0033] In the embodiments of the present application, the network device can indicate the working mode of the terminal device through the single uplink transmission field. For example, it can indicate that the terminal device works in the SUO mode, that is, the first carrier performs uplink services in a dual-antenna mode, that is, the first carrier and the second carrier perform uplink transmission in a time-division manner. While supporting the SUO mode, it supports the terminal device to reserve the handover time and independently determine the uplink time-domain resource of the second carrier, so that the terminal device can perform radio frequency handover in advance before the scheduled uplink service.

[0034] Optionally, the first information includes at least one of a first configuration parameter, a second configuration parameter, or a third configuration parameter; wherein, the first configuration parameter is used to indicate a full uplink time slot in a first uplink time domain resource, the second configuration parameter is an uplink symbol before the full uplink time slot, and the third configuration parameter is used to indicate a flexible time slot in the first uplink time domain resource.

[0035] Embodiments of the present application provide various implementation manners of the first information. Through the first information, a full uplink time slot, a flexible time slot, and an uplink symbol in the first uplink time domain resource can be indicated.

[0036] Optionally, the first carrier is a normal uplink NUL carrier, and the second carrier is a supplementary uplink SUL carrier; or, the first carrier is a primary carrier, and the second carrier is a secondary carrier; or, the first carrier and the second carrier belong to different cell groups.

[0037] Embodiments of the present application provide scenarios supported by the first carrier and the second carrier, such as uplink CA, SUL, and DC scenarios.

[0038] Optionally, the first carrier is a TDD carrier, and the second carrier is an FDD carrier; or, the first carrier is a TDD carrier, and the second carrier is a TDD carrier.

[0039] Embodiments of the present application provide duplex modes supported by the first carrier and the second carrier. Description of the Drawings

[0040] Figure 1 It is a structural block diagram of a communication system provided by an embodiment of the present application;

[0041] Figure 2 It is a schematic diagram of a CA scenario provided by an embodiment of the present application;

[0042] Figure 3 It is a schematic diagram of a SUL scenario provided by an embodiment of the present application;

[0043] Figure 4 It is a schematic diagram of a DC scenario provided by an embodiment of the present application;

[0044] Figure 5 It is a schematic diagram of a terminal radio frequency device chain provided by an embodiment of the present application;

[0045] Figure 6 It is a schematic diagram of time domain resource configuration provided by an embodiment of the present application;

[0046] Figure 7a It is a structural block diagram of a communication device provided by an embodiment of the present application;

[0047] Figure 7b It is another structural block diagram of a communication device provided by an embodiment of the present application;

[0048] Figure 8 It is a schematic flowchart of the communication method provided by the embodiment of the present application;

[0049] Figure 9 It is another schematic diagram of time domain resource allocation provided by the embodiment of the present application;

[0050] Figure 10 It is another schematic diagram of time domain resource allocation provided by the embodiment of the present application;

[0051] Figure 11 It is another schematic diagram of time domain resource allocation provided by the embodiment of the present application;

[0052] Figure 12 It is another schematic diagram of time domain resource allocation provided by the embodiment of the present application;

[0053] Figure 13 It is another schematic diagram of time domain resource allocation provided by the embodiment of the present application;

[0054] Figures 14 to 17 It is another schematic structural diagram of the communication device provided by the embodiment of the present application. Detailed implementation manners

[0055] The method provided by the embodiment of the present application can be used for Figure 1 the communication system shown in the figure. Refer to Figure 1 , this communication system may include multiple terminal devices and a network device.

[0056] Figure 1 Fig. shows a schematic diagram of a communication system to which the technical solution provided by the present application is applicable. This communication system may include multiple network devices (only network device 100 is shown) and multiple terminal devices (only terminal device 201 and terminal device 202 are shown in the figure). Figure 1 It is only a schematic diagram and does not constitute a limitation on the applicable scenario of the technical solution provided by the present application. This communication system supports sidelink communication, such as device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, etc.

[0057] Among them, the network device and the terminal device can perform uplink and downlink transmissions through a cellular link (Uu link), and the terminal devices can communicate through a sidelink (sidelink link), such as D2D communication, V2X communication, machine type communication (MTC), etc.

[0058] The network device can be a transmission reception point (TRP), a base station, a relay station, an access point, etc. The network device can be a network device in a 5G communication system or a network device in a future evolved network; it can also be a wearable device or a vehicle-mounted device, etc. Additionally, it can also be: a base transceiver station (BTS) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, an NB (NodeB) in a wideband code division multiple access (WCDMA), or an eNB or eNodeB (evolutional NodeB) in a long term evolution (LTE). The network device can also be a radio controller in a cloud radio access network (CRAN) scenario. The embodiments of this application will be described by taking a base station as an example.

[0059] The terminal device can be a user equipment (UE), an access terminal device, a UE unit, a UE station, a mobile station, a mobile unit, a remote station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE device, etc. The access terminal device can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc. The terminal device of this application can also be an in-vehicle module, an in-vehicle module group, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit built into a vehicle as one or more components or units. The vehicle can implement the method of this application through the built-in in-vehicle module, in-vehicle module group, in-vehicle component, in-vehicle chip, or in-vehicle unit. The first terminal device, the second terminal device, and the network device of this application can all be one or more chips, or a system on chip (SOC), etc.

[0060] Figure 1 The communication system shown supports the CA scenario, the dual connectivity (DC) scenario, and the supplementary uplink (SUL) scenario.

[0061] Figure 2 It is a schematic diagram of a CA scenario. As Figure 2 shown, the network device 100 provides the primary cell uplink carrier and the secondary cell uplink carrier for the terminal device 200. The primary cell uplink carrier provides the primary cell, and the secondary cell uplink carrier provides the secondary cell. The terminal device 200 can be located within the coverage ranges of the primary cell and the secondary cell. The terminal device 200 can send data to the network device 100 through the primary cell uplink carrier and the secondary cell uplink carrier, and the network device 100 can also send data to the terminal device 200 through the primary cell uplink carrier and the secondary cell uplink carrier. It should be noted that the embodiments of the present application do not limit the sizes of the coverage ranges of the primary cell and the secondary cell. For the convenience of description, one cell is called the primary cell, and the other cell is called the secondary cell. The primary cell and the secondary cell can be interchanged, and the names of the primary cell and the secondary cell themselves do not play a limiting role.

[0062] The primary cell can use the TDD or FDD frequency band, and the secondary cell can use the TDD frequency band or the FDD frequency band. For example, when the primary cell uses the TDD frequency band and the secondary cell uses the TDD frequency band, the CA scenario at this time can be called the TDD+TDD CA scenario; for example, when the primary cell uses the TDD frequency band and the secondary cell uses the FDD frequency band, the CA scenario at this time can be called the TDD+FDD CA scenario.

[0063] Figure 3 It is a schematic diagram of an SUL scenario. As Figure 3 shown, the network device 100 can provide two uplink carriers for the terminal device 200, namely the normal uplink (NUL) carrier and the supplementary uplink (SUL) carrier. NUL and SUL can be transmitted in a time division multiplexing (TDM) manner. In addition, SUL can use a frequency band lower than NUL. When the multi-band of SUL is lower than the frequency band of NUL, the coverage range of SUL is larger than the coverage range of NUL, as Figure 3As shown, the terminal device 200 can be located in the near midpoint area of the cell. When the terminal device 200 is in the near midpoint area, it can be understood that the terminal device 200 can be simultaneously within the NUL and SUL coverage ranges, or it can be understood that the terminal device 200 is within the NUL coverage range, or it can be understood that the distance between the terminal device 200 and the network device 11 does not exceed a threshold. The SUL can use a higher frequency band than the NUL, and the embodiments of the present application do not limit this.

[0064] Figure 4 Fig. shows a schematic diagram of another communication system to which the technical solution provided by the present application is applicable. The communication system may include two access network nodes (taking access network node 301 and access network node 302 as examples in the figure) and one or more terminal devices 200 connected to each access network node ( Figure 4 Only one terminal device 200 is shown). Figure 4 It is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solution provided by the present application. Figure 4 The shown communication system supports the dual connectivity (DC) scenario. The access network node 301 and the access network node 302 can be two nodes. Both the access network node 301 and the access network node can be the above-mentioned network device 100. The access network node 301 and the access network node 302 can also be integrated into one network device 100.

[0065] Refer to Figure 4 , in the DC scenario, the access network node 301 can provide an uplink carrier for the terminal device 200 ( Figure 4 The uplink carrier 1 shown), for the terminal device 200 to perform uplink communication with the access network node 301. The access network node 302 can provide an uplink carrier for the terminal device 200 ( Figure 4 The uplink carrier 2 shown), for the terminal device 200 to perform uplink communication with the access network node 302. The access network node 301 can be the master node, and the access network node 302 can be the secondary node. The uplink carrier 1 can be called the primary cell group uplink carrier (or can be called the master node uplink carrier), and the uplink carrier 2 can be called the secondary cell group uplink carrier (or can be called the secondary node uplink carrier); or, the access network node 302 can be the master node, and the access network node 301 can be the secondary node. The uplink carrier 2 can be called the primary cell group uplink carrier (or can be called the master node uplink carrier), and the uplink carrier 1 can be called the secondary cell group uplink carrier (or can be called the secondary node uplink carrier).

[0066] Taking a user equipment (UE) with a total number of transmit antennas of 2 as an example, the UE supports uplink carrier aggregation. As Figure 5As shown in the figure, the transmitting end radio frequency architecture of the UE (which can also be referred to as a transceiver hereinafter) includes radio frequency device chain 1 and radio frequency device chain 2. Among them, radio frequency device chain 1 includes power unit 1 and a 3.5 GHz radio frequency unit. Radio frequency device chain 1 is connected to a 3.5 GHz antenna and is used to support the UE to work on the primary carrier at 3.5 GHz; radio frequency device chain 2 includes power unit 2 and a 2.1 / 3.5 GHz radio frequency unit. Radio frequency device chain 2 can be connected to a 3.5 GHz antenna or a 2.1 GHz antenna and is used to support the UE to work on the 3.5 GHz primary carrier or the 2.1 GHz secondary carrier. The UE can work in the single uplink operation (SUO) mode, that is, the primary carrier works in the dual antenna mode. In the SUO mode, the terminal device can send uplink data on two carriers, but only send uplink data on one carrier at the same time.

[0067] For example, assume that the UE works in the SUO mode. The base station schedules the UE to perform uplink transmission through the 3.5 GHz carrier via DCI1. After the UE receives DCI1, it switches radio frequency device chain 2 to the 3.5 GHz antenna, and the UE sends uplink data on the 3.5 GHz carrier through radio frequency device chain 1 and radio frequency device chain 2. The base station can also send DCI2 to schedule the UE to perform uplink transmission through the 2.1 GHz carrier. After the UE receives DCI2, it switches radio frequency device chain 2 to the 2.1 GHz antenna. The UE sends uplink data on the 2.1 GHz carrier through radio frequency device chain 2 and sends uplink data on the 3.5 GHz carrier through radio frequency device chain 1.

[0068] The UE can also work in a non-SUO mode, that is, the primary carrier works in the single antenna mode. The UE sends uplink data on the 3.5 GHz carrier through the 3.5 GHz antenna and can also perform uplink transmission through the 2.1 GHz carrier at the same time. The uplink transmissions on the two carriers do not affect each other.

[0069] In summary, when the UE works in the SUO mode, assuming that the network device schedules uplink services on different carriers successively, the terminal device can only determine the radio frequency switching time point after receiving the corresponding DCI, cannot predict the radio frequency switching time point, cannot perform radio frequency switching in advance, and the network device needs to consider the radio frequency switching time when scheduling, which greatly increases the scheduling complexity of the network device.

[0070] The embodiments of this application provide a communication method. The terminal device receives high-layer signaling from the network device, which indicates the first uplink time-domain resource of the first carrier, and that the first carrier and the second carrier perform uplink transmission in a time-division manner. The terminal device can also determine the second uplink time-domain resource of the second carrier, where the first uplink time-domain resource and the second uplink time-domain resource do not overlap in the time domain. The terminal device can also send an uplink signal on some or all of the resources in the second uplink time-domain resource. The method provided by the embodiments of this application supports the main carrier to perform uplink transmission in a dual-antenna mode, that is, the base station can instruct the UE to work in the SUO mode. In the uplink carrier aggregation scenario, the terminal device can determine the uplink time-domain resource of the secondary carrier according to the uplink time-domain resource configured by the base station for the main carrier, and can determine the radio frequency switching time point according to the uplink time-domain resource of the secondary carrier and the uplink time-domain resource of the main carrier. That is, the terminal does not need to receive the DCI scheduling the main carrier and the DCI scheduling the secondary carrier to determine when to perform radio frequency switching, and can perform radio frequency switching in advance to avoid affecting the uplink service scheduled later. The network device does not need to consider the switching time of the UE during scheduling, which greatly reduces the scheduling complexity.

[0071] The following explains the terms related to the embodiments of this application:

[0072] (1) Frame format

[0073] Taking the fifth-generation wireless communication system - the new radio (NR) system as an example, in the time domain, it can be divided into multiple radio frames, and each radio frame is 10 ms long. A radio frame includes multiple time slots. A time slot can include 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols. The length of the time slot is related to the subcarrier space (SCS), and the time slot length = (SCS / 15) ms. When SCS = 15 kHz, the length of a time slot is 1 ms, that is, 1 ms includes one time slot. When SCS = 30 kHz, the length of a time slot is 0.5 ms, that is, 1 ms includes two time slots.

[0074] (2) Time slot

[0075] A time slot is the smallest scheduling unit of time-domain resources. In NR, a format of a time slot can be including 14 OFDM symbols, and the cyclic prefix (CP) of each OFDM symbol is a normal CP; or, a format of a time slot can be including 12 OFDM symbols, and the CP of each OFDM symbol is an extended CP; or, a format of a time slot can be including 7 OFDM symbols, and the CP of each OFDM symbol is a normal CP.

[0076] The OFDM symbols in a time slot can be fully used for uplink transmission, or fully used for downlink transmission; the OFDM symbols in a time slot can also be partially used for downlink transmission, partially used for uplink transmission, and partially reserved without transmission. It should be understood that the above examples are only for illustrative purposes and should not constitute any limitation to this application. For the consideration of system forward compatibility, the time slot format is not limited to the above examples.

[0077] (3) Symbol

[0078] A symbol is the smallest unit of time domain resource. The embodiment of this application does not limit the time length of a symbol. For different subcarrier spacings, the length of a symbol can be different. Symbols can include uplink symbols and downlink symbols. By way of example and not limitation, an uplink symbol can be referred to as a Single Carrier - Frequency Division Multiple Access (SC - FDMA) symbol or an Orthogonal Frequency Division Multiplexing (OFDM) symbol; a downlink symbol can be referred to as an OFDM symbol, for example.

[0079] (4) Time domain resource configuration

[0080] These symbols in a time slot can be configured as uplink (UL), downlink (DL), or flexible.

[0081] Specifically, the time domain resources can be configured through the high - layer parameter TDD - UL - DL - ConfigCommon. For example, the nrofDownlinkSlots parameter is used to configure fully downlink time slots, the nrofUplinkSlots parameter is used to configure fully uplink time slots, the nrofDownlinkSymbols parameter is used to configure downlink symbols, and the nrofUplinkSymbols parameter is used to configure uplink symbols.

[0082] In addition, the dl - UL - TransmissionPeriodicity parameter in the high - layer parameter TDD - UL - DL - ConfigCommon can be used to limit the duration T of the time domain resource configuration (i.e., the resource configuration period described in the embodiment of this application). By way of example, T = P * 2 μ . Where P is the dl - UL - TransmissionPeriodicity parameter and μ = 0 or 1. For example, P is 2.5 milliseconds and μ = 1, which means the duration of the time domain resource configuration is 2.5 * 2, a total of 10 time slots.

[0083] For example, referring to Figure 6 , taking the duration of time-domain resource allocation as 10 time slots as an example, assuming that the nrofUplinkSlots parameter is "3", which means the last 3 time slots are used for uplink transmission; the nrofDownlinkSlots parameter is "1", which means the first 1 time slot is used for downlink transmission; the nrofUplinkSymbols parameter is "3", which means the 3 symbols adjacent to the last 3 time slots before the last 3 time slots are used for uplink transmission, that is, the last 3 symbols in time slot 6 are used for uplink transmission; the nrofDownlinkSymbols parameter is "3", which means 3 symbols adjacent to the first 1 time slot after the first 1 time slot are used for downlink transmission, that is, the first 3 symbols in time slot 1 are used for downlink transmission.

[0084] Referring to Figure 6 , the remaining time slots within the duration of time-domain resource allocation are flexible time slots, that is, time slot 2, time slot 3, time slot 4, or time slot 5 is a flexible time slot. Time slot 2, time slot 3, time slot 4, or time slot 5 can be used for uplink transmission, or for downlink transmission, or can be not used for transmission.

[0085] (5) Time Division Duplex (TDD): It is a duplex communication technology for communication systems, used to separate the receiving channel and the transmitting channel, that is, the uplink and downlink. In a communication system using the TDD mode, the uplink and downlink use the same frequency-domain resources, and the uplink and downlink are distinguished by different time-domain resources.

[0086] In LTE, there are 7 configurations for TDD. A frame has 10 subframes. If D represents a downlink subframe and U represents an uplink subframe, in each configuration, the arrangement order of D and U is fixed. Within a cell, the TDD configuration can be semi-statically configured or statically configured.

[0087] In NR, TDD can also be called dynamic TDD. The time slot is the smallest schedulable time unit. For more flexible scheduling, the ratio of different time slot types within each frame can change dynamically, and as the subcarrier spacing changes, the number of time slots included in each frame is also different. According to the different time slot types, a time slot can be a pure uplink time slot, a pure downlink time slot, an uplink-dominated time slot, or a downlink-dominated time slot, etc. Among them, all symbols in a pure uplink time slot are used as uplink symbols; all symbols in a pure downlink time slot are downlink symbols; the number of uplink symbols in an uplink-dominated time slot is greater than the number of downlink symbols; the number of downlink symbols in a downlink-dominated time slot is greater than the number of uplink symbols; in addition, a guard band can be set between the uplink and downlink symbols.

[0088] That is to say, in the TDD mode, one time slot may be used for uplink transmission or downlink transmission. The network device notifies the uplink and downlink time slot ratio through the system information block (SIB).

[0089] (6) Frequency Division Duplexing (FDD): A duplex communication technology for a communication system, used to separate the receiving channel and the transmitting channel, that is, the uplink and downlink. In a communication system using the FDD mode, the uplink and downlink use the same time domain resources, and the uplink and downlink are distinguished by different frequency domain resources. For example, the uplink frequency range is different from the downlink frequency range.

[0090] For a communication system that supports the FDD mode, the receiving channel and the transmitting channel are uninterrupted in time, and a frequency band needs to be configured for each of the receiving channel and the transmitting information. All 10 sub-frames of each radio frame can be used for downlink transmission and can also be used for uplink transmission. The uplink and downlink are carried out separately in different frequency bands.

[0091] (7) Uplink time domain resources of the carrier:

[0092] The uplink time domain resources of the carrier refer to the available uplink time domain resources of the carrier in the uplink carrier aggregation scenario. For example, in a resource configuration period of 5 time slots in length, the last 3 time slots are used for the uplink transmission of the primary carrier. That is, the uplink time domain resources of the primary carrier include the last 3 time slots.

[0093] The terminal device described in the embodiments of the present application can be implemented through Figure 7a the communication device 710 therein. Figure 7a The figure shows a schematic hardware structure diagram of the communication device 710 provided by the embodiments of the present application. The communication device 710 includes a processor 7101, a memory 7102, and at least one communication interface ( Figure 7a only an example of including the communication interface 7103 is used for illustration). Among them, the processor 7101, the memory 7102, and the communication interface 7103 are interconnected with each other.

[0094] The processor 7101 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the solution of the present application.

[0095] A communication interface 7103, using any transceiver-like device, is used to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0096] The memory 7102 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or it can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory can exist independently and be connected to the processor through a communication line. The memory can also be integrated with the processor.

[0097] Among them, the memory 7102 is used to store computer execution instructions for implementing the solution of this application, and is controlled by the processor 7101 to execute. The processor 7101 is used to execute the computer execution instructions stored in the memory 7102, so as to implement the intention processing method provided by the following embodiments of this application.

[0098] Optionally, the computer execution instructions in the embodiments of this application can also be referred to as application program code, and the embodiments of this application do not make specific limitations on this.

[0099] In a specific implementation, as an embodiment, the processor 7101 can include one or more CPUs, such as Figure 7a CPU0 and CPU1 in

[0100] In a specific implementation, as an embodiment, the communication device 710 can include multiple processors, such as Figure 7aThe processors 7101 and 7106 therein. Each of these processors can be a single-CPU processor or a multi-CPU processor. The processors here can refer to one or more devices, circuits, and / or processing cores for processing data (such as computer program instructions).

[0101] In a specific implementation, as an embodiment, the communication device 710 may further include an output device 7104 and an input device 7105. The output device 7104 communicates with the processor 7101 and can display information in various ways. For example, the output device 7104 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. The input device 7105 communicates with the processor 7101 and can receive user input in various ways. For example, the input device 7105 can be a mouse, a keyboard, a touch screen device, or a sensing device, etc.

[0102] The above-mentioned communication device 710 can be a general-purpose device or a special-purpose device. In a specific implementation, the communication device 710 can be a desktop computer, a laptop computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a Figure 7a similar structure therein. The embodiments of the present application do not limit the type of the communication device 710.

[0103] It should be noted that the communication device 710 can be a whole terminal device, or a functional component or module that implements the functions on the terminal, or a communication chip, such as a baseband chip, etc. When the communication device 710 is a whole terminal device, the communication interface can be a radio frequency module. When the communication device 710 is a communication chip, the communication interface 7103 can be the input and output interface circuit of the chip, and the input and output interface circuit is used to read in and output baseband signals.

[0104] Figure 7b is a schematic diagram of another communication device provided by the embodiments of the present application. Figure 7b The shown communication device can be the communication device described in the embodiments of the present application. As Figure 7b shown, the structure of the communication device 720 can refer to the Figure 7b shown structure.

[0105] The communication device includes at least one processor 7201, at least one memory 7202, at least one transceiver 7203, at least one network interface 7204, and one or more antennas, such as Figure 7b the antennas 7205 and 7206 shown in Figure 7b . The processor 7201, the memory 7202, the transceiver 7203, and the network interface 7204 are connected, for example, through a bus. The antenna 7205 is connected to the transceiver 7203. The network interface 7204 is used to connect the communication device to other communication devices through a communication link. For example, the communication device is connected to a core network element through an S1 interface. In the embodiments of the present application, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment does not limit this.

[0106] The processor in the embodiments of the present application, such as the processor 7201, may include at least one of the following types: general-purpose central processing unit (CPU), digital signal processor (DSP), microprocessor, application-specific integrated circuit (ASIC), microcontroller unit (MCU), field programmable gate array (FPGA), or an integrated circuit for implementing logical operations. For example, the processor 7201 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. At least one processor 7201 may be integrated in one chip or located on multiple different chips.

[0107] The memory in the embodiments of the present application, such as the memory 7202, may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or it may also be an electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0108] The memory 7202 may exist independently and be connected to the processor 7201. Optionally, the memory 7202 may also be integrated with the processor 7201, for example, integrated within a single chip. Among them, the memory 7202 can store the program code for implementing the technical solutions of the embodiments of the present application and be controlled by the processor 7201 for execution. The various computer program codes being executed can also be regarded as the driver programs of the processor 7201. For example, the processor 7201 is used to execute the computer program code stored in the memory 7202, thereby implementing the technical solutions in the embodiments of the present application.

[0109] The transceiver 7203 can be used to support the reception or transmission of radio frequency signals between a communication device and a terminal device. The transceiver 7203 can be connected to an antenna 7205 (or antenna 7206). Specifically, one or more antennas 7205 can receive radio frequency signals. The transceiver 7203 can be used to receive the radio frequency signals from the antenna, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 7201 so that the processor 7201 can further process the digital baseband signals or digital intermediate frequency signals, such as demodulation processing and decoding processing. In addition, the transceiver 7203 can be used to receive the modulated digital baseband signals or digital intermediate frequency signals from the processor 7201, convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through one or more antennas 7205. Specifically, the transceiver 7203 can selectively perform one-stage or multi-stage down-conversion processing and analog-to-digital conversion processing on the radio frequency signals to obtain digital baseband signals or digital intermediate frequency signals, and the sequence of the down-conversion processing and the analog-to-digital conversion processing can be adjusted. The transceiver 7203 can selectively perform one-stage or multi-stage up-conversion processing and digital-to-analog conversion processing on the modulated digital baseband signals or digital intermediate frequency signals to obtain radio frequency signals, and the sequence of the up-conversion processing and the digital-to-analog conversion processing can be adjusted. The digital baseband signals and the digital intermediate frequency signals can be collectively referred to as digital signals. The transceiver can be referred to as a transceiver circuit, a transceiver unit, a transceiver device, a transmitting circuit, a transmitting unit, or a transmitting device, etc.

[0110] It should be noted that the communication device 720 can be the entire communication device, or a component or assembly that implements the functions of the communication device, or a communication chip. When the communication device 720 is a communication chip, the transceiver 7203 can be an interface circuit of the chip, and this interface circuit is used to read and output baseband signals.

[0111] In the embodiments of the present application, the antenna 7205 is used for the communication device to perform uplink transmission on a first carrier. For example, the antenna 7205 is the first antenna described in the embodiments of the present application, and the transceiver can transmit an uplink signal on the first carrier through the antenna 7205; the antenna 7206 is used for the communication device to perform uplink transmission on a second carrier. For example, the antenna 7206 is the second antenna described in the embodiments of the present application, and the transceiver can transmit an uplink signal on the second carrier through the antenna 7206. Alternatively, the transceiver can transmit uplink signals on the first carrier and the second carrier in a time-division manner through the antenna 7206.

[0112] The embodiments of the present application provide a communication method, as Figure 8 shown, the method includes the following steps:

[0113] 801. The network device determines first information and second information. The first information is used to indicate the first uplink time-domain resource of the first carrier, and the second information is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner.

[0114] Specifically, the first uplink time-domain resource is the available resource for the terminal device to send an uplink signal on the first carrier. The first information may include at least one of a first configuration parameter, a second configuration parameter, or a third configuration parameter. Among them, the first configuration parameter is used to indicate all uplink time slots in the first uplink time-domain resource, the second configuration parameter is the uplink symbol before all uplink time slots, and the third configuration parameter is used to indicate the flexible time slots in the first uplink time-domain resource.

[0115] It should be noted that all symbols in the all-uplink time slot are used for uplink transmission. The first configuration parameter is used to indicate all uplink time slots and may be the nrofUplinkSlots parameter, which is used to indicate that X time slots at the end of a resource configuration period are used for uplink transmission. For example, the first configuration parameter in the first information is used to indicate that X time slots at the end of a resource configuration period are used for uplink transmission of the first carrier, that is, the first configuration parameter may indicate the first uplink time-domain resource.

[0116] For example, referring to Figure 9 , assuming that the resource configuration period is 10 time slots and the nrofUplinkSlots parameter is "3", that is, among the 10 time slots corresponding to a resource configuration period, the last 3 time slots are all-uplink time slots.

[0117] It should be noted that the first resource configuration period is a resource configuration period during which the first configuration parameter, the second configuration parameter, and the third configuration parameter take effect.

[0118] In a possible implementation, the resource configuration period may be determined by a transmission period configuration parameter. The transmission period configuration parameter may be a high-layer parameter. For example, the dl-UL-TransmissionPeriodicity parameter. The duration T for determining the resource configuration period may be based on this. Specifically, the duration T of the first resource configuration period = P * 2 μ . Where P is the transmission period configuration parameter and μ = 0 or 1.

[0119] The second configuration parameter may indicate that S symbols adjacent to all uplink time slots before all uplink time slots within the resource configuration period are used for uplink transmission. The second configuration parameter may be a high-layer parameter. For example, the second configuration parameter may be the nrofUplinkSymbols parameter.

[0120] For example, referring to Figure 9, assume that the resource configuration period is 10 time slots, and the parameter nrofUplinkSymbols is "4", that is, among the 10 time slots corresponding to one resource configuration period, the last 4 symbols in time slot 6 are used for uplink transmission.

[0121] The third configuration parameter can indicate flexible time slots within the resource configuration period. The flexible time slots can be used for uplink transmission, downlink transmission, or a part of the symbols in the flexible time slots are used for uplink transmission and a part of the symbols are used for downlink transmission. The network device can indicate which time slot is a flexible time slot through the third configuration parameter without making specific configurations. For example, refer to Figure 9 , assume that the resource configuration period is 10 time slots, and time slot 3 can be a flexible time slot.

[0122] Specifically, the second information is used to indicate the working mode of the first carrier. Among them, the working mode of the first carrier includes the SUO mode and the non - SUO mode. The SUO mode can also be called the uplink single - transmit mode. In the SUO mode, it is supported that the first carrier performs uplink transmission through the dual - antenna mode. Taking a dual - antenna terminal device as an example, in the SUO mode, only one carrier can perform uplink transmission at the same time. The non - SUO mode can also be called the uplink concurrent mode. Taking a dual - antenna terminal device as an example, in the non - SUO mode, the first carrier performs uplink transmission through one antenna, and at the same time the second carrier performs uplink transmission through the other antenna. That is to say, in the non - SUO mode, two carriers can perform uplink transmission at the same time.

[0123] In a possible implementation, the high - layer signaling includes a single uplink transmission field, which can also be called a working mode indication field, used to indicate the working mode of the first carrier. Specifically, this field can indicate that the working mode of the first carrier is the SUO mode or the non - SUO mode.

[0124] For example, when the state of the single uplink transmission field is the first state, for example, when the state of the single uplink transmission field is "enable", it indicates that the working mode of the first carrier is the SUO mode, and it is supported that the first carrier performs uplink transmission through dual antennas, that is, the first carrier and the second carrier perform uplink transmission in a time - division manner; or, when the state of the single uplink transmission field is the second state, for example, when the state of the single uplink transmission field is "disable", it indicates that the working mode of the first carrier is the non - SUO mode, that is, the first carrier and the second carrier perform uplink transmission in a concurrent manner.

[0125] In a possible implementation, the high - layer signaling does not include a single uplink transmission field, implicitly indicating that the single uplink transmission field is "disable", that is, the working mode of the first carrier is the non - SUO mode.

[0126] In the embodiments of the present application, the second information is a single uplink transmission field in the high-layer signaling, and the single uplink transmission field is in a first state.

[0127] Exemplarily, when the network device expects the terminal device to operate in the SUO mode, the network device may set the state of the single uplink transmission field to "enable". Taking Figure 5 the UE shown as an example, the first carrier is a 3.5 GHz primary carrier, and the second carrier is a 2.1 GHz secondary carrier. After receiving the high-layer signaling, the UE may switch the radio frequency device chain 2 to the 3.5 GHz antenna, and then the terminal device performs uplink services in the 3.5 GHz primary carrier in a dual-antenna mode. Of course, the terminal device may also switch to the 2.1 GHz antenna to perform uplink services, but only one carrier can be used for uplink services at the same time.

[0128] When the network device expects the terminal device to operate in a non-SUO mode, the network device may set the state of the single uplink transmission field to "disable". Taking Figure 5 the UE shown as an example, the first carrier is a 3.5 GHz primary carrier, and the second carrier is a 2.1 GHz secondary carrier. After receiving the high-layer signaling from the network device, the UE may switch the radio frequency device chain 2 to the 2.1 GHz antenna, and then the terminal device performs uplink services in the 3.5 GHz primary carrier in a single-antenna mode, and may perform uplink services in the 2.1 GHz secondary carrier in a single-antenna mode at the same time.

[0129] 802. The network device sends high-layer signaling to the terminal device, and the high-layer signaling includes first information and second information.

[0130] 803. The terminal device receives the high-layer signaling from the network device, determines the second uplink time domain resource of the second carrier according to the first uplink time domain resource indicated by the first information and the second information, and the first uplink time domain resource and the second uplink time domain resource do not overlap in the time domain.

[0131] It should be noted that the second uplink time domain resource is the available resource for sending uplink signals on the second carrier. After receiving the high-layer signaling, the terminal device determines the first uplink time domain resource according to the first information therein. It is also possible to take the inverse of the first uplink time domain resource, and determine the uplink time domain resource of the second carrier in the time domain obtained after taking the inverse. It can be understood that the second uplink time domain resource is the available resource for the terminal device to send uplink signals on the second carrier.

[0132] In addition, the first uplink time domain resource and the second uplink time domain resource are not continuous in the time domain. Specifically, there is an interval between the first uplink time domain resource and the second uplink time domain resource.

[0133] In a possible implementation, the time interval between the first uplink time-domain resource and the second uplink time-domain resource in the time domain is the handover time, and the handover time is the time for carrier handover. For example, the handover time is the time for switching the first carrier to the second carrier, or the time for switching the second carrier to the first carrier.

[0134] It should be noted that the time for carrier handover can be the time for the radio frequency device chain of the terminal device to perform antenna handover. Taking Figure 5 the shown UE as an example, the handover time can be the time required for the radio frequency device chain 2 to switch from the 3.5 GHz antenna to the 2.1 GHz antenna, or the time required for the radio frequency device chain 2 to switch from the 2.1 GHz antenna to the 3.5 GHz antenna.

[0135] In a specific implementation, the first uplink time-domain resource can be continuous or discontinuous in the time domain. The second uplink time-domain resource can be continuous or discontinuous in the time domain. The following is a detailed description with reference to the diagrams:

[0136] (1) The first uplink time-domain resource is continuous and the second uplink time-domain resource is discontinuous. In this scenario, the handover time before the first uplink time-domain resource is the time for switching the second carrier to the first carrier, and the handover time after the first uplink time-domain resource is the time for switching the first carrier to the second carrier.

[0137] Exemplarily, referring to Figure 10 , assuming a resource configuration period is 10 slots (time slots), slots 3 to 6 are the first uplink time-domain resource, and the terminal device can determine the second uplink time-domain resource in slots 0 to 2 and slots 7 to 9, and reserve handover times at the end of slot 2 and the start of slot 7. Among them, the handover time at the end of slot 2 is used to switch the second carrier to the first carrier, and the handover time at the start of slot 7 is used to switch the first carrier to the second carrier.

[0138] (2) The first uplink time-domain resource is continuous and the second uplink time-domain resource is continuous. The handover time between the first uplink time-domain resource and the second uplink time-domain resource is the time for switching the second carrier to the first carrier, or the time for switching the first carrier to the second carrier.

[0139] Exemplarily, referring to Figure 11, taking a resource configuration period of 10 slots as an example, slots 0 to 5 are the first uplink time domain resources. The terminal device can determine the second uplink time domain resources in slots 6 to 9, and reserve handover times at the start of slot 6 and the end of slot 9. The handover time at the start of slot 6 is used to switch the first carrier to the second carrier, and the handover time at the end of slot 9 is used to switch the second carrier to the first carrier.

[0140] (3) The first uplink time domain resources are discontinuous, and the second uplink time domain resources are continuous. The handover time before the second uplink time domain resources is the time for switching the first carrier to the second carrier, and the handover time after the second uplink time domain resources is the time for switching the second carrier to the first carrier.

[0141] Exemplarily, referring to Figure 12 , taking a resource configuration period of 10 slots as an example, slots 0 to 2 and slot 9 are the first uplink time domain resources. The terminal device can determine the second uplink time domain resources in slots 3 to 8, and reserve handover times at the start of slot 3 and the end of slot 8. The handover time at the start of slot 3 is used to switch the first carrier to the second carrier, and the handover time at the end of slot 8 is used to switch the second carrier to the first carrier.

[0142] (4) The first uplink time domain resources are discontinuous, and the second uplink time domain resources are discontinuous. The handover time between the first uplink time domain resources and the second uplink time domain resources is the time for switching the first carrier to the second carrier or the time for switching the second carrier to the first carrier.

[0143] Exemplarily, referring to Figure 13 , taking a resource configuration period of 10 slots as an example, the first uplink time domain resources occupy slots 3 and 6. The terminal device can determine the second uplink resources in slots 0 to 2, slots 4 to 5, and slots 7 to 9, and reserve handover times at the end of slot 2, the start of slot 4, the end of slot 5, and the start of slot 7. Among them, the handover time at the end of slot 2 is used to switch the second carrier to the first carrier, the handover time at the start of slot 4 is used to switch the first carrier to the second carrier, the handover time at the end of slot 5 is used to switch the second carrier to the first carrier, and the handover time at the start of slot 7 is used to switch the first carrier to the second carrier.

[0144] 804. The terminal device transmits an uplink signal on some or all of the resources in the second uplink time domain resources.

[0145] It should be noted that the second uplink time-domain resource is the available resource for the terminal device to send uplink signals on the second carrier. The terminal device can send uplink signals through all of the time-domain resources therein, or can also send uplink signals through all of the time-domain resources.

[0146] Optionally, the first carrier and the second carrier support Figure 2 the CA scenario shown. Specifically, the first carrier is the primary carrier and the second carrier is the secondary carrier.

[0147] Optionally, the first carrier and the second carrier support Figure 3 the scenario shown, where the first carrier is the NUL carrier and the second carrier is the SUL carrier.

[0148] Optionally, the first carrier and the second carrier support Figure 4 the DC scenario shown, where the first carrier and the second carrier belong to different cell groups. For example,

[0149] In a possible implementation, the first carrier is a TDD carrier and the second carrier is an FDD carrier. That is, the first carrier is in the TDD mode and the second carrier is in the FDD mode.

[0150] Or, the first carrier is a TDD carrier and the second carrier is a TDD carrier. That is, the first carrier is in the TDD mode and the second carrier is in the TDD mode.

[0151] In the case of dividing each function into corresponding function modules, Figure 14 a possible structural schematic diagram of the communication device involved in the above embodiments is shown. Figure 14 The communication device shown can be the terminal device described in the embodiments of the present application, or can also be a component in the terminal device that implements the above method, or can also be a chip applied to the terminal device. The chip can be a System-On-a-Chip (SOC) or a baseband chip with communication functions, etc. As Figure 14 shown, the communication device includes a processing unit 1401 and a communication unit 1402. The processing unit can be one or more processors, and the communication unit can be a transceiver.

[0152] The processing unit 1401 is used to support the terminal device to execute step 803, and / or for other processes of the technologies described herein.

[0153] The communication unit 1402 is used to support the communication between the terminal device and other communication devices. For example, it supports the terminal device to execute step 804, and / or for other processes of the technologies described herein.

[0154] It should be noted that all relevant content of each step involved in the above method embodiments can be cited in the function descriptions of the corresponding functional modules, and will not be elaborated here.

[0155] Exemplarily, in the case of adopting an integrated unit, the structural schematic diagram of the communication device provided by the embodiments of the present application is as Figure 15 shown. In Figure 15 , the communication device includes: a processing module 1501 and a communication module 1502. The processing module 1501 is used to control and manage the actions of the communication device. For example, it executes the steps executed by the above-mentioned processing unit 1401, and / or is used to execute other processes of the technologies described herein. The communication module 1502 is used to execute the steps executed by the above-mentioned communication unit 1402, and supports the interaction between the communication device and other devices, such as the interaction with other terminal devices. As Figure 15 shown, the communication device may further include a storage module 1503, and the storage module 1503 is used to store the program code and data of the communication device.

[0156] When the processing module 1501 is a processor, the communication module 1502 is a transceiver, and the storage module 1503 is a memory, the communication device is Figure 7a the communication device shown.

[0157] In the case of dividing each function into corresponding functional modules, Figure 16 shows a possible structural schematic diagram of the communication device involved in the above embodiments. Figure 16 The communication device shown may be the network device described in the embodiments of the present application, or a component in the network device that implements the above method, or, alternatively, a chip applied to the network device. The chip may be a System-On-a-Chip (SOC) or a baseband chip with communication functions, etc. As Figure 16 shown, the communication device includes a processing unit 1601 and a communication unit 1602. The processing unit 1601 may be one or more processors, and the communication unit 1602 may be a transceiver.

[0158] The processing unit 1601 is used to support the network device to execute step 801, and / or is used for other processes of the technologies described herein.

[0159] The communication unit 1602 is used to support the communication between the network device and other communication devices. For example, it supports the network device to execute step 802, and / or is used for other processes of the technologies described herein.

[0160] It should be noted that all relevant content of each step involved in the above method embodiments can be cited in the function descriptions of the corresponding functional modules, and will not be elaborated here.

[0161] Exemplarily, in the case of adopting an integrated unit, the schematic structural diagram of the communication device provided by the embodiment of the present application is as Figure 17 shown. In Figure 17 , the communication device includes: a processing module 1701 and a communication module 1702. The processing module 1701 is used to control and manage the actions of the communication device. For example, it executes the steps executed by the above-mentioned processing unit 1601, and / or is used to execute other processes of the technologies described herein. The communication module 1702 is used to execute the steps executed by the above-mentioned communication unit 1602, and support the interaction between the communication device and other devices, such as the interaction with other network device apparatuses. As Figure 17 shown, the communication device may further include a storage module 1703, and the storage module 1703 is used to store the program code and data of the communication device.

[0162] When the processing module 1701 is a processor, the communication module 1702 is a transceiver, and the storage module 1703 is a memory, the communication device is the Figure 7b shown communication device.

[0163] The embodiment of the present application provides a computer-readable storage medium, and instructions are stored in the computer-readable storage medium; the instructions are used to execute the method as Figure 8 shown.

[0164] The embodiment of the present application provides a computer program product including instructions, and when it runs on a communication device, it causes the communication device to execute the method as Figure 8 shown.

[0165] The embodiment of the present application provides a wireless communication device, including: instructions are stored in the wireless communication device; when the wireless communication device runs on the Figure 7a , Figure 7b , Figures 14 to 17 shown communication device, it causes the communication device to execute the method as Figure 8 shown. The wireless communication device may be a chip.

[0166] The embodiment of the present application further provides a communication system, including: a terminal device and a network device. Exemplarily, the terminal device may be the Figure 7a , Figure 14 , Figure 15 shown communication device, and the network device may be the Figure 7b , Figure 16 , Figure 17 shown communication device.

[0167] Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the database access device is divided into different functional modules to complete all or part of the functions described above.

[0168] The processor in the embodiments of the present application may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller unit (MCU), or various computing devices that run software such as an artificial intelligence processor. Each computing device may include one or more cores for executing software instructions for arithmetic or processing. The processor may be a single semiconductor chip or may be integrated with other circuits into a semiconductor chip. For example, it may form a system-on-chip (SoC) with other circuits (such as codec circuits, hardware acceleration circuits, or various bus and interface circuits), or may also be integrated as an internal processor of an ASIC in the ASIC. The ASIC integrated with the processor may be packaged separately or may be packaged together with other circuits. In addition to the cores for executing software instructions for arithmetic or processing, the processor may further include necessary hardware accelerators, such as a field programmable gate array (FPGA), a programmable logic device (PLD), or a logic circuit for implementing dedicated logical operations.

[0169] The memory in the embodiments of the present application may include at least one of the following types: a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0170] In this application, "at least one" means one or more. "A plurality" means two or more. "And / or" describes the relationship between associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple. Additionally, for the convenience of clearly describing the technical solutions of the embodiments of this application, in the embodiments of this application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and "first", "second", etc. do not necessarily mean different.

[0171] In several embodiments provided in this application, it should be understood that the disclosed database access device and method can be implemented in other ways. For example, the database access device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of the database access device or unit can be in electrical, mechanical, or other forms.

[0172] The unit described as a separate component may or may not be physically separated. The component displayed as a unit can be a physical unit or multiple physical units, that is, it can be located in one place or distributed to multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0173] In addition, in each embodiment of this application, the functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0174] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The software product is stored in a storage medium and includes several instructions for causing a device (which may be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0175] As described above, the foregoing are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that, Including: Receiving high-layer signaling from a network device, where the high-layer signaling includes first information and second information, the first information is used to indicate a first uplink time-domain resource of a first carrier, and the second information is used to indicate that the first carrier and a second carrier perform uplink transmission in a time-division manner; Determining a second uplink time-domain resource of the second carrier according to the first uplink time-domain resource of the first carrier and the second information, where the first uplink time-domain resource and the second uplink time-domain resource do not overlap in the time domain; Sending an uplink signal on some or all of the resources in the second uplink time-domain resource.

2. The method according to claim 1, wherein The first uplink time-domain resource and the second uplink time-domain resource are not continuous in the time domain.

3. The method according to claim 1 or 2, wherein An interval time between the first uplink time-domain resource and the second uplink time-domain resource in the time domain is a handover time, and the handover time is a time for switching the first carrier to the second carrier, or a time for switching the second carrier to the first carrier.

4. The method according to claim 3, wherein The first uplink time-domain resource is continuous in the time domain and the second uplink time-domain resource is not continuous in the time domain. A handover time before the first uplink time-domain resource is a time for switching the second carrier to the first carrier, and a handover time after the first uplink time-domain resource is a time for switching the first carrier to the second carrier; Or, The first uplink time-domain resource is continuous in the time domain and the second uplink time-domain resource is continuous in the time domain. A handover time between the first uplink time-domain resource and the second uplink time-domain resource is a time for switching the second carrier to the first carrier or a time for switching the first carrier to the second carrier; Or, The first uplink time-domain resource is not continuous in the time domain and the second uplink time-domain resource is continuous in the time domain. A handover time before the second uplink time-domain resource is a time for switching the first carrier to the second carrier, and a handover time after the second uplink time-domain resource is a time for switching the second carrier to the first carrier; Or, The first uplink time-domain resource is not continuous in the time domain and the second uplink time-domain resource is not continuous in the time domain. A handover time between the first uplink time-domain resource and the second uplink time-domain resource is a time for switching the first carrier to the second carrier or a time for switching the second carrier to the first carrier.

5. The method according to claim 1 or 2, wherein The second information is a single uplink transmission field in the high-layer signaling, and a first state of the single uplink transmission field is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner.

6. The method according to claim 1 or 2, characterized in that, The first information includes at least one of a first configuration parameter, a second configuration parameter, or a third configuration parameter; Wherein, the first configuration parameter is used to indicate all uplink time slots in the first uplink time-domain resource, the second configuration parameter is an uplink symbol before the all uplink time slots, and the third configuration parameter is used to indicate a flexible time slot in the first uplink time-domain resource.

7. The method according to claim 1 or 2, wherein the first carrier is a conventional uplink NUL carrier, and the second carrier is an auxiliary uplink SUL carrier; or the first carrier is a primary carrier, and the second carrier is a secondary carrier; or the first carrier and the second carrier belong to different cell groups.

8. The method according to claim 1 or 2, wherein the first carrier is a TDD carrier, and the second carrier is an FDD carrier; or the first carrier is a TDD carrier, and the second carrier is a TDD carrier.

9. A communication method, characterized in that, comprising: determining first information and second information, where the first information is used to indicate a first uplink time domain resource of the first carrier, and the second information is used to indicate that the first carrier and the second carrier perform uplink transmission in a time division manner; sending high-layer signaling to a terminal device, where the high-layer signaling includes the first information and the second information, and the first information and the second information are used to determine a second uplink time domain resource of the second carrier.

10. The method according to claim 9, wherein The first uplink time domain resource and the second uplink time domain resource are not continuous in the time domain.

11. The method according to claim 10, wherein an interval time between the first uplink time domain resource and the second uplink time domain resource in the time domain is a handover time, and the handover time is a time for switching the first carrier to the second carrier, or a time for switching the second carrier to the first carrier.

12. The method according to claim 11, wherein The first uplink time domain resource is continuous in the time domain and the second uplink time domain resource is not continuous in the time domain. A handover time before the first uplink time domain resource is a time for switching the second carrier to the first carrier, and a handover time after the first uplink time domain resource is a time for switching the first carrier to the second carrier; or the first uplink time domain resource is continuous in the time domain and the second uplink time domain resource is continuous in the time domain. A handover time between the first uplink time domain resource and the second uplink time domain resource is a time for switching the second carrier to the first carrier or a time for switching the first carrier to the second carrier; or the first uplink time domain resource is not continuous in the time domain and the second uplink time domain resource is continuous in the time domain. A handover time before the second uplink time domain resource is a time for switching the first carrier to the second carrier, and a handover time after the second uplink time domain resource is a time for switching the second carrier to the first carrier; or the first uplink time domain resource is not continuous in the time domain and the second uplink time domain resource is not continuous in the time domain. A handover time between the first uplink time domain resource and the second uplink time domain resource is a time for switching the first carrier to the second carrier or a time for switching the second carrier to the first carrier.

13. The method according to any one of claims 9 to 12, wherein the second information is a single uplink transmission field in the high-layer signaling, and a first state of the single uplink transmission field is used to indicate that the first carrier and the second carrier perform uplink transmission in a time division manner.

14. The method according to any one of claims 9 to 12, characterized in that, The first information includes at least one of a first configuration parameter, a second configuration parameter, or a third configuration parameter; Wherein, the first configuration parameter is used to indicate full uplink time slots in the first uplink time domain resource, the second configuration parameter is used to indicate uplink symbols before the full uplink time slots, and the third configuration parameter is used to indicate flexible time slots in the first uplink time domain resource.

15. The method according to any one of claims 9 to 12, wherein The first carrier is a conventional uplink NUL carrier, and the second carrier is a supplementary uplink SUL carrier; or, The first carrier is a primary carrier, and the second carrier is a secondary carrier; or, The first carrier and the second carrier belong to different cell groups.

16. The method according to any one of claims 9 to 12, wherein The first carrier is a TDD carrier, and the second carrier is an FDD carrier; or, The first carrier is a TDD carrier, and the second carrier is a TDD carrier.

17. A terminal device, characterized in that, Comprising a processor, a transceiver, and a first antenna and a second antenna connected to the transceiver; the first antenna is used for uplink transmission on a first carrier, and the second antenna is used for uplink transmission in a time-division manner on the second carrier and the first carrier; The transceiver is configured to receive high-layer signaling from a network device, wherein the high-layer signaling includes first information and second information, the first information is used to indicate a first uplink time domain resource of the first carrier, and the second information is used to indicate uplink transmission on the first carrier and the second carrier in a time-division manner; The processor is configured to determine a second uplink time domain resource of the second carrier according to the first uplink time domain resource of the first carrier and the second information, wherein the first uplink time domain resource and the second uplink time domain resource do not overlap in the time domain; The transceiver is further configured to transmit an uplink signal on some or all of the resources in the second uplink time domain resource through the second antenna.

18. The terminal device according to claim 17, wherein The first uplink time domain resource and the second uplink time domain resource are not continuous in the time domain.

19. The terminal device according to claim 17 or 18, wherein The interval time between the first uplink time domain resource and the second uplink time domain resource in the time domain is a handover time, and the handover time is the time for switching the first carrier to the second carrier, or the time for switching the second carrier to the first carrier.

20. The terminal device according to claim 19, wherein The first uplink time domain resource is continuous in the time domain and the second uplink time domain resource is not continuous in the time domain. The handover time before the first uplink time domain resource is the time for switching the second carrier to the first carrier, and the handover time after the first uplink time domain resource is the time for switching the first carrier to the second carrier; Or, The first uplink time-domain resource is continuous in the time domain and the second uplink time-domain resource is continuous in the time domain. The switching time between the first uplink time-domain resource and the second uplink time-domain resource is the time when the second carrier switches to the first carrier or the time when the first carrier switches to the second carrier; Or, The first uplink time-domain resource is discontinuous in the time domain and the second uplink time-domain resource is continuous in the time domain. The switching time before the second uplink time-domain resource is the time when the first carrier switches to the second carrier, and the switching time after the second uplink time-domain resource is the time when the second carrier switches to the first carrier; Or, The first uplink time-domain resource is discontinuous in the time domain and the second uplink time-domain resource is discontinuous in the time domain. The switching time between the first uplink time-domain resource and the second uplink time-domain resource is the time when the first carrier switches to the second carrier or the time when the second carrier switches to the first carrier.

21. The terminal device according to claim 17 or 18, characterized in that, The second information is a single uplink transmission field in the high-layer signaling, and the first state of the single uplink transmission field is used to indicate that the first carrier and the second carrier perform uplink transmission in a time-division manner.

22. The terminal device according to claim 17 or 18, characterized in that, The first information includes at least one of a first configuration parameter, a second configuration parameter, or a third configuration parameter; Wherein, the first configuration parameter is used to indicate all uplink time slots in the first uplink time-domain resource, the second configuration parameter is the uplink symbol before the all uplink time slots, and the third configuration parameter is used to indicate the flexible time slots in the first uplink time-domain resource.

23. The terminal device according to claim 17 or 18, characterized in that, The first carrier is a conventional uplink NUL carrier, and the second carrier is an auxiliary uplink SUL carrier; or, The first carrier is a primary carrier, and the second carrier is a secondary carrier; or, The first carrier and the second carrier belong to different cell groups.

24. The terminal device according to claim 17 or 18, characterized in that, The first carrier is a TDD carrier, and the second carrier is an FDD carrier; or, The first carrier is a TDD carrier, and the second carrier is a TDD carrier.

25. A communication device, characterized in that, Comprising a processor, the processor is coupled with a memory; A memory for storing a computer program; A processor for executing the computer program stored in the memory, so that the device executes the method according to any one of claims 1 to 8.

26. A communication device, characterized in that, Comprising a processor, the processor is coupled with a memory; A memory for storing a computer program; A processor for executing the computer program stored in the memory, so that the device executes the method according to any one of claims 9 to 16.

27. A computer-readable storage medium, characterized in that, Comprising a program or instruction, when the program or instruction is run by a processor, the method according to any one of claims 1 to 8 is executed.

28. A computer-readable storage medium, characterized in that, Comprising a program or instruction, when the program or instruction is run by a processor, the method according to any one of claims 9 to 16 is executed.

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