Power control method and apparatus

Abstract

Disclosed in the present application are a power control method and apparatus, which are applied to a terminal device that supports communication by means of a first connection and a second connection. The method comprises: sending first information on a first time unit by means of a first connection, wherein the sending power of the first information is less than or equal to a first power, the first time unit comprises at least one time sub-unit, and the transmission configuration of the at least one time sub-unit for a second connection is uplink, flexible and / or non-overlap sub-band full duplex (SBFD). In the present application, the sending power for a first connection is controlled on a first time unit including a time sub-unit in which the transmission configuration for a second connection is SBFD, flexible and / or uplink, thereby facilitating a reduction in mutual interference between the first connection and the second connection during simultaneous uplink transmission, and thus improving the communication performance.

Description

A power control method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on July 6, 2023, with application number 202310826242.5 and application name “A Power Control Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a power control method and device. Background Art

[0003] Non-overlap subband full duplex (SBFD) is introduced in the next generation of wireless communication (NR) to meet the needs of uplink services. Specifically, SBFD supports the division of different subbands in the frequency domain. The base station can perform uplink and downlink communications simultaneously on different subbands to achieve full-duplex on the base station side. However, for the terminal device, it is still half-duplex. That is to say, the terminal device can only perform uplink transmission or downlink reception on the corresponding subband at a time point. Among them, in the time domain, the symbols that support the base station to perform uplink and downlink communications in different subbands can be called SBFD symbols, that is, symbols of the uplink subband are inserted, and the transmission direction of the terminal device on the SBFD symbols is uplink or downlink.

[0004] Since a terminal device may perform uplink transmission on SBFD symbols, the introduction of SBFD will have an impact on dual connectivity (DC) communications.

[0005] Summary of the Invention

[0006] The present application discloses a power control method and apparatus, which implements control of the transmission power of a first connection on a first time unit including a sub-time unit whose transmission configuration for a second connection is SBFD, flexible and / or uplink, thereby helping to reduce mutual interference between the first connection and the second connection when performing uplink transmission simultaneously, and improving communication performance.

[0007] In the first aspect, the present application provides a communication method, which is applied to a terminal device that supports communication through a first connection and a second connection, the method comprising: sending first information in a first time unit through the first connection, the transmission power of the first information is less than or equal to the first power, the first time unit includes at least one sub-time unit, wherein the at least one sub-time unit is configured for transmission of the second connection as uplink, flexible and / or SBFD.

[0008] In this technical solution, when the terminal device performs uplink transmission in a first time unit through a first connection, the first time unit includes a sub-time unit in which the transmission configuration for the second connection is uplink, flexible, and / or SBFD. In this case, the transmission power for the first connection is limited to less than or equal to the first power, which helps to reduce mutual interference between the first connection and the second connection when performing uplink transmission at the same time, thereby improving communication performance.

[0009] In a possible implementation manner, the first power is a maximum transmit power configured for the first connection.

[0010] In a possible implementation, a sub-time unit configured as SBFD for transmission of the second connection in the at least one sub-time unit is not used for downlink reception.

[0011] In a possible implementation, the method further includes: receiving first indication information, where the first indication information indicates a transmission direction of a sub-time unit in the first time unit in which the transmission configuration for the second connection is SBFD.

[0012] In a possible implementation manner, the method further includes: receiving second indication information, where the second indication information indicates a transmission configuration of a sub-time unit in the first time unit for the second connection.

[0013] In one possible implementation, if the transmission configuration of the first time unit for the second connection is downlink, the transmission power of the first information is less than or equal to the second power, the second power is the maximum total transmission power of the terminal device, and the second power is greater than the first power.

[0014] In this technical solution, the terminal device will not perform uplink transmission on the second connection in the first time unit. Therefore, when the terminal device performs uplink transmission in the first time unit through the first connection, the transmission power is not limited to less than or equal to the first power, but is limited to less than or equal to the second power, which helps to improve the utilization of the transmission power of the terminal device.

[0015] In a possible implementation, the first connection is a connection between the terminal device and the first network device, and the second connection is a connection between the terminal device and the second network device.

[0016] In a second aspect, the present application provides a device, comprising a unit for implementing the method described in the first aspect.

[0017] In a third aspect, the present application provides another device, including a processor; the processor is used to execute the method described in the first aspect.

[0018] In an optional embodiment, the device may further include a memory; the memory is used to store a computer program; and a processor is specifically used to call the computer program from the memory to execute the method described in the first aspect.

[0019] In a fourth aspect, the present application provides a chip for executing the method described in the first aspect.

[0020] In a fifth aspect, the present application provides a chip module, which includes a communication interface and a chip, wherein: the communication interface is used for internal communication within the chip module, or for the chip module to communicate with an external device; the chip is used to execute the method described in the first aspect.

[0021] In a sixth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a computer, the method described in the first aspect is executed.

[0022] In a seventh aspect, the present application provides a computer program product comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of a communication system architecture in a DC scenario provided by an embodiment of the present application;

[0024] FIG2 is a schematic flow chart of a power control method provided in an embodiment of the present application;

[0025] FIG3A is a schematic diagram of a transmission configuration of time slot 1 provided in an embodiment of the present application;

[0026] FIG3B is a schematic diagram of a transmission configuration of time slot 2 provided in an embodiment of the present application;

[0027] FIG3C is a schematic diagram of a transmission configuration of time slot 3 provided in an embodiment of the present application;

[0028] FIG3D is a schematic diagram of a transmission configuration of time slot 4 provided in an embodiment of the present application;

[0029] FIG3E is a schematic diagram of a transmission configuration of time slot 5 provided in an embodiment of the present application;

[0030] FIG4 is a schematic diagram of a transmission configuration of time slots 1 to 6 provided in an embodiment of the present application;

[0031] FIG5 is a schematic structural diagram of a device provided by the present application;

[0032] FIG6 is a schematic structural diagram of another device provided by the present application;

[0033] FIG7 is a schematic structural diagram of a chip module provided in this application. DETAILED DESCRIPTION

[0034] It should be understood that the terms "first", "second", etc. involved in the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order. "At least one" in the embodiments of the present application refers to one or more, and "a plurality" refers to two or more. "And / or" in the embodiments of the present application describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. Among them, A and B can be singular or plural. The character " / " can indicate that the previous and subsequent associated objects are in an "or" relationship.

[0035] In the embodiments of the present application, "at least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or multiple items. For example, at least one of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c. Each of a, b, and c can be an element or a set containing one or more elements.

[0036] In the embodiments of this application, "equal to" can be used in conjunction with "less than" or "greater than", but not with both "less than" and "greater than". "Equal to" used in conjunction with "less than" applies to the technical solution adopted by "less than". "Equal to" used in conjunction with "greater than" applies to the technical solution adopted by "greater than".

[0037] First, some concepts or technologies involved in the embodiments of this application are introduced.

[0038] 1. Terminal equipment

[0039] In the embodiments of the present application, a terminal device is a device having wireless transceiver functions and supporting communication through at least two connections, which can be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal device, Internet of Things terminal device, vehicle-mounted terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent or UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as long time evolution (LTE), NR, sixth generation mobile communication system (6th-generation, 6G) or next generation wireless communication technology, etc.

[0040] For example, the terminal device can be a mobile phone, a tablet computer, a desktop computer, a laptop computer, an all-in-one computer, an in-vehicle terminal, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, 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 function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public land mobile network (PLMN), etc. In some embodiments of the present application, the terminal device may also be a device with transceiver functions, such as a chip module. The chip module may include a chip and may also include other discrete components. The embodiments of the present application do not limit the specific technology and specific device form used by the terminal device.

[0041] 2. Network equipment

[0042] In the embodiments of the present application, a network device is a device that provides wireless communication capabilities for a terminal device. The network device may be an access network (AN) device or a satellite. The AN device may be a radio access network (RAN) device. The network device may support at least one wireless communication technology, such as LTE, NR, or 6G.

[0043] For example, the network device includes, but is not limited to, a next-generation base station (gNB) in the fifth-generation mobile communication system (5G), an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a baseband unit (BBU), a transmission and reception point (TRP), a transmitting point (TP), a mobile switching center, etc. The network device may also be a radio controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, an access network device in future mobile communications, or an access network device in a future evolved PLMN, etc. In some embodiments, the network device may also be a device that provides wireless communication capabilities for the terminal device, such as a chip module. For example, the chip module may include a chip and may also include other discrete components. The embodiments of this application do not limit the specific technology and specific device form used by the network device.

[0044] 3. Time unit

[0045] In the embodiments of the present application, a time unit is a time domain unit used for uplink transmission and / or downlink reception. Specifically, in the time domain, communication between a terminal device and a network device is performed in a time unit as a unit or granularity. Exemplarily, a time unit may be: a radio frame, a subframe, a slot, a mini-slot, or a symbol. Among them, a symbol may be an orthogonal frequency division multiplexing (OFDM) symbol.

[0046] A time unit can be composed of one or more sub-time units, and a sub-time unit can be understood as a division granularity that is finer than a time unit in the time domain. Taking LTE as an example, the time unit is a subframe, the sub-time unit can be a time slot, and a subframe can include one or more time slots. The number of time slots in a subframe can be related to the subcarrier space (SCS). For example, the SCS is 15kHz, and a subframe includes 1 time slot. For another example, the SCS is 30kHz, and a subframe includes 2 time slots. Taking NR as an example, the time unit is a time slot, the sub-time unit is a symbol, and a time slot can include one or more symbols. Among them, the number of symbols included in a time slot is related to the type of cyclic prefix (CP). For example, in NR, under the conventional CP configuration, a time slot includes 14 symbols. For another example, in NR, under the extended CP configuration, a time slot includes 12 symbols.

[0047] In addition, the transmission direction of a time unit can be described or characterized by a transmission configuration of the time unit. Specifically, the transmission configuration of a time unit can include uplink, downlink, and / or flexible. The transmission configuration of a time unit is related to the transmission configuration of the sub-time units included in the time unit.

[0048] For example, if the transmission configuration of a sub-time unit is uplink, the sub-time unit can also be called an uplink sub-time unit. The terminal device can perform uplink transmission in the sub-time unit.

[0049] For another example, if the transmission configuration of a sub-time unit is downlink, the sub-time unit can also be called a downlink sub-time unit. The terminal device can perform downlink reception in the sub-time unit.

[0050] For another example, if the transmission configuration of a sub-time unit is flexible, the sub-time unit can be called a flexible sub-time unit. The terminal device can perform flexible communication in the sub-time unit.

[0051] For example, a sub-time unit configured with an uplink sub-band can be referred to as an SBFD sub-time unit. A terminal device can perform uplink transmission or downlink reception in this sub-time unit. Specifically, whether a terminal device performs uplink transmission or downlink reception in an SBFD sub-time unit can be determined based on instructions from a network device.

[0052] In one possible implementation, the transmission configuration of a time unit may include SBFD and / or non-SBFD (Non-SBFD), that is, a time unit may include an SBFD time unit and / or a non-SBFD time unit, wherein an SBFD time unit refers to a time unit configured with an uplink subband, and a non-SBFD time unit includes an uplink time unit, a downlink time unit, and / or a flexible time unit. In other words, the transmission configuration of a time unit may include uplink, downlink, flexible, and / or SBFD. Similarly, the transmission configuration of a sub-time unit may include SBFD and / or non-SBFD (Non-SBFD), that is, a sub-time unit may include an SBFD sub-time unit and / or a non-SBFD sub-time unit, wherein an SBFD sub-time unit refers to a sub-time unit configured with an uplink subband, and a non-SBFD sub-time unit includes an uplink sub-time unit, a downlink sub-time unit, and / or a flexible sub-time unit. In other words, the transmission configuration of a sub-time unit may include uplink, downlink, flexible, and / or SBFD.

[0053] In some embodiments, configuring an uplink sub-time unit with an uplink sub-band can also be described as: the sub-band corresponding to the sub-time unit is inserted into the uplink sub-band. Specifically, the uplink sub-band can be inserted into the sub-band corresponding to the downlink sub-time unit and / or the flexible sub-time unit. In other words, the network device can update the transmission configuration of the downlink sub-time unit and / or the flexible sub-time unit configured for the terminal device to SBFD. In other words, the network device can further configure the downlink sub-time unit and / or the flexible sub-time unit configured for the terminal device as an SBFD sub-time unit.

[0054] It should be noted that, for the network device side, uplink and downlink communications can be performed simultaneously in the SBFD sub-time unit. That is, for the network device side, the subband corresponding to the SBFD sub-time unit can include an uplink subband and a downlink subband.

[0055] However, for terminal devices, whether an SBFD sub-time unit is used for uplink transmission, downlink reception, or flexible communication is indicated by the network device. For example, if an SBFD sub-time unit is used for uplink transmission, the subband corresponding to the SBFD sub-time unit is the uplink subband. That is, the terminal device performs uplink transmission in the SBFD sub-time unit and the uplink subband corresponding to the SBFD sub-time unit.

[0056] Take symbols as an example. If the symbol is configured for uplink transmission, it is called an uplink symbol. If the symbol is configured for downlink transmission, it is called a downlink symbol. If the symbol is configured for flexible transmission, it is called a flexible symbol. If the symbol is configured for SBFD transmission, it is called an SBFD symbol. Alternatively, if the symbol is configured for uplink subband, it is called an SBFD symbol.

[0057] Take a timeslot as an example. If a timeslot is configured for uplink transmission, it is called an uplink timeslot. If a timeslot is configured for downlink transmission, it is called a downlink timeslot. If a timeslot is configured for flexible transmission, it is called a flexible timeslot. If a timeslot is configured for SBFD transmission, it is called an SBFD timeslot. Alternatively, if a timeslot is configured for uplink subband, it is called an SBFD timeslot.

[0058] It should be noted that, for a time unit, the transmission configurations of all sub-time units included in a time unit can be the same. For example, the transmission configurations of all sub-time units included in a time unit are uplink, and the time unit can also be called an uplink time unit. Alternatively, the transmission configurations of some sub-time units included in a time unit are the same, and the transmission configurations of some sub-time units are different. For example, a time unit includes 14 sub-time units, of which the transmission configurations of 4 sub-time units are all downlink, the transmission configurations of 7 sub-time units are all uplink, the transmission configuration of 1 sub-time unit is flexible, and the transmission configurations of 2 sub-time units are all SBFD.

[0059] Taking a time slot as an example, the transmission configuration of a time slot can also be called a time slot configuration or slot configuration. Taking a subframe as an example, the transmission configuration of a subframe can also be called a subframe configuration. Taking a symbol as an example, the transmission configuration of a symbol can also be called a symbol configuration.

[0060] The present application provides a power control method that enables, when a terminal device communicates via a first connection and a second connection, to control the transmit power of the first connection in a time unit containing a sub-time unit configured as SBFD, flexible, and / or uplink for the transmission of the second connection. This helps reduce the impact of introducing SBFD on dual-connection communications and improves communication performance.

[0061] The embodiments of the present application can be applied to communication scenarios where a terminal device has two or more connections. For example, the embodiments of the present application can be applied to DC scenarios. DC can be NR-DC (new radio-dual connectivity), EN-DC (e-UTRAN nR-dual connectivity), NGEN-DC (next generation ran E-UTRA new radio-dual connectivity), or NE-DC (new radio E-UTRA-dual connectivity).

[0062] As shown in Figure 1, it is a schematic diagram of a communication system architecture in a DC scenario of an embodiment of the present application. As shown in Figure 1, the terminal device is connected to a first network device and a second network device. Among them, the connection between the terminal device and the first network device is a first connection, and the connection between the terminal device and the second network device is a second connection. The terminal device can communicate on the first connection and the second connection at the same time. In the DC scenario shown in Figure 1, one of the first network device and the second network device serves as a primary RAN node, and the other network device serves as a secondary RAN node. The primary RAN node is a node that is directly connected to the core network in the DC scenario and manages control signaling, and the secondary RAN node is connected to the primary node.

[0063] It should be noted that Figure 1 is only a schematic diagram of the communication system architecture in a DC scenario and does not constitute a limitation on the communication system architecture in a DC scenario. For example, the communication system architecture shown in Figure 1 may include two or more network devices, two or more terminal devices, etc.

[0064] For another example, the embodiments of the present application may also be applied to scenarios where there are two or more connections between a terminal device and a network device.

[0065] The power control method of the embodiment of the present application is described in detail below. The power control method can be executed by a terminal device or by a device matching the terminal device (such as a chip, chip module or processor placed inside the terminal device).

[0066] The following describes the power control method using an example of a terminal device communicating via a first connection and a second connection. For example, the first connection is a connection between the terminal device and a first network device, and the second connection is a connection between the terminal device and a second network device. For example, the first network device is a primary RAN node, and the second network device is a secondary RAN node. For another example, the first network device is a secondary RAN node, and the second network device is a primary RAN node. Alternatively, the first connection and the second connection are two connections between the terminal device and a single network device.

[0067] As shown in FIG2 , it is a flow chart of a power control method according to an embodiment of the present application, which specifically includes the following steps.

[0068] Step 201: The terminal device determines first information.

[0069] The first information is information to be sent, which may be generated by the terminal device or obtained by the terminal device from other devices. The embodiment of the present application does not limit the method for obtaining the first information. For example, the first information is uplink information to be sent.

[0070] It should be noted that step 201 is an optional step. In other words, the terminal device may not perform step 201.

[0071] Step 202: The terminal device sends first information in a first time unit through a first connection, and the sending power of the first information is less than or equal to the first power.

[0072] The first time unit includes at least one sub-time unit. The at least one sub-time unit is configured for transmission of the second connection as uplink, flexible, and / or SBFD. In other words, the at least one sub-time unit includes an uplink sub-time unit, a flexible sub-time unit, and / or an SBFD sub-time unit.

[0073] In an embodiment of the present application, when the terminal device performs uplink transmission in the first time unit through the first connection, and the first time unit includes an uplink sub-time unit, a flexible sub-time unit, and / or an SBFD sub-time unit configured for the second connection, the transmission power for the first connection is limited to less than or equal to the first power, which helps to reduce mutual interference between the first connection and the second connection when performing uplink transmission at the same time, thereby improving communication performance.

[0074] For example, the first power is the maximum transmit power configured for the first connection. The first power may be predefined by a protocol, or may be indicated by a network device to a terminal device, etc. The embodiment of the present application does not limit the method for obtaining the first power. For example, when the first connection is a connection between a terminal device and a first network device, the network device indicating the first power to the terminal device refers to the first network device. For example, the first network device may indicate the first power to the terminal device through high-layer signaling or downlink control information (DCI). High-layer signaling may include radio resource control (RRC) signaling.

[0075] Taking the first connection as the connection between the terminal device and the first network device, the second connection as the connection between the terminal device and the second network device, and the first network device as the primary RAN node and the second network device as the secondary RAN node as an example, the first power can be P MCG , P MCG It is the maximum transmit power configured for the Master Cell Group (MCG). Taking the first connection as the connection between the terminal device and the first network device, the second connection as the connection between the terminal device and the second network device, and the first network device as the secondary RAN node and the second network device as the primary RAN node as an example, the first power can be P SCG , P SCG It is the maximum transmit power configured for the secondary serving cell (SCell).

[0076] For example, take the first time unit as time slot 1. As shown in Figure 3A, time slot 1 includes symbols 0 to symbol 13. Among them, the symbols configured as uplink for the second connection transmission in symbols 0 to symbol 13 are symbols 7 to 9, the symbols configured as SBFD for the second connection transmission in symbols 0 to symbol 13 are symbols 10 to 13, the symbol configured as flexible for the second connection transmission in symbols 0 to symbol 13 is symbol 6, and the symbols configured as downlink for the second connection transmission in symbols 0 to symbol 13 are symbols 0 to 5. That is to say, for the second connection, symbols 0 to 5 are downlink symbols, symbol 6 is a flexible symbol, symbols 7 to 9 are uplink symbols, and symbols 10 to 13 are SBFD symbols. Since the terminal device may perform uplink transmission on the second connection on symbols 6 to 13, the transmission power used when the terminal device performs uplink transmission on time slot 1 through the first connection is less than or equal to the first power.

[0077] For another example, take the first time unit as time slot 2. As shown in Figure 3B, time slot 2 includes symbols 0 to symbol 13. Among them, the symbols configured as SBFD for the second connection transmission in symbols 0 to symbol 13 are symbols 0 to 6, the symbol configured as flexible for the second connection transmission in symbols 0 to symbol 13 is symbol 7, and the symbols configured as downlink for the second connection transmission in symbols 0 to symbol 13 are symbols 8 to 13. That is to say, for the second connection, symbols 0 to 6 are SBFD symbols, symbol 7 is a flexible symbol, and symbols 8 to 13 are downlink symbols. Since the terminal device may perform uplink transmission on the second connection on symbols 0 to 7, the transmission power used when the terminal device performs uplink transmission on time slot 2 through the first connection is less than or equal to the first power.

[0078] Furthermore, in some embodiments, the sub-time unit configured as SBFD for the transmission of the second connection in the at least one sub-time unit is not used for downlink reception. That is, for the second connection, when the first time unit includes an uplink sub-time unit, a flexible sub-time unit and / or an SBFD sub-time unit not used for downlink reception, the terminal device uses a transmission power limit of less than or equal to the first power when sending the first information through the first connection in the first time unit. Among them, the SBFD sub-time unit not being used for downlink reception means that the SBFD sub-time unit is not used for downlink reception of the terminal device, and may include a sub-time unit for uplink transmission and / or flexible communication.

[0079] For example, take the first time unit as time slot 3. As shown in Figure 3C, time slot 3 includes symbols 0 to symbol 13. Among them, the symbols configured as downlink for the second connection transmission in symbols 0 to symbol 13 are symbols 7 to 9, the symbols configured as SBFD for the second connection transmission in symbols 0 to symbol 13 are symbols 10 to 13, symbols 10 to 11 are used for downlink reception, symbols 12 to 13 are used for uplink transmission, the symbol configured as flexible for the second connection transmission in symbols 0 to symbol 13 is symbol 6, and the symbols configured as uplink for the second connection transmission in symbols 0 to symbol 13 are symbols 0 to 5. That is to say, for the second connection, symbols 0 to 5 are uplink symbols, symbol 6 is a flexible symbol, symbols 7 to 9 are downlink symbols, and symbols 10 to 13 are SBFD symbols. Since the terminal device may perform uplink transmission on the second connection on symbols 0 to 6 and symbols 12 to 13, the transmission power used when the terminal device performs uplink transmission on time slot 3 through the first connection is less than or equal to the first power.

[0080] For example, for the second connection, when the first time unit only includes a downlink sub-time unit and / or an SBFD sub-time unit for downlink reception, the terminal device may not limit the transmit power of the first information when sending the first information through the first connection in the first time unit. This helps to increase the possibility of successful transmission.

[0081] In addition, in some other embodiments of the present application, if the transmission configuration of the first time unit for the second connection is downlink, the transmission power of the first information is less than or equal to the second power. The second power is the maximum total transmission power of the terminal device. The second power is greater than the first power. That is to say, if the first time unit is a downlink time unit for the second connection, the transmission power used by the terminal device when sending the first information through the first connection in the first time unit is less than or equal to the second power. This helps to improve the utilization rate of the transmission power of the terminal device. The first time unit being a downlink time unit means that: all sub-time units included in the first time unit are downlink sub-time units; or, the first time unit includes a downlink sub-time unit and an SBFD sub-time unit, wherein all SBFD sub-time units in the first time unit are used for downlink reception.

[0082] For example, let's take time slot 4 as the first time unit. As shown in Figure 3D , time slot 4 includes symbols 0 through 13. The symbols configured for downlink transmission on the second connection are symbols 0 through 13. That is, for the second connection, symbols 0 through 13 are all downlink symbols. Because the terminal device does not perform uplink transmission on the second connection during symbols 0 through 13, the transmit power of the terminal device performing uplink transmission on time slot 4 via the first connection is not limited to less than or equal to the first power, but is instead limited to less than or equal to the second power.

[0083] For another example, take the first time unit as time slot 5. As shown in Figure 3E, time slot 5 includes symbols 0 to 13. Among them, the symbols configured as downlink for the second connection transmission in symbols 0 to 13 are symbols 0 to 9, and the symbols configured as SBFD for the second connection transmission in symbols 0 to 13 are symbols 10 to 13, and symbols 10 to 13 are all used for downlink reception. That is to say, for the second connection, symbols 0 to 9 are downlink symbols, and symbols 10 to 13 are SBFD symbols. Since the terminal device will not perform uplink transmission on the second connection on symbols 0 to 13, the transmission power when the terminal device performs uplink transmission on time slot 5 through the first connection is not limited to less than or equal to the first power, but is limited to less than or equal to the second power.

[0084] In some embodiments of the present application, the transmission configuration for the second connection in the first time unit and / or the transmission direction for the second connection in the SBFD sub-time unit in the first time unit may be configured by the network device to the terminal device.

[0085] For example, when the connection between the terminal device and the second network device is the second connection, the second network device indicates to the terminal device the transmission configuration of the sub-time unit in the first time unit for the second connection and / or the transmission direction of the SBFD sub-time unit in the first time unit for the second connection. That is, the second network device sends first indication information and second indication information to the terminal device. The first indication information indicates the transmission direction of the SBFD sub-time unit in the first time unit for the second connection. The second indication information indicates the transmission configuration of the sub-time unit in the first time unit for the second connection.

[0086] Among them, the second network device can carry the first indication information and the second indication information in the same signaling or message and send it to the terminal device, or the second network device can carry the first indication information and the second indication information in different messages and send them to the terminal device. For example, the message carrying the first indication information can be UE-level, and the message carrying the second indication information can be cell-level. The cell-level message is a message that is valid for all terminal devices in the cell, and the UE-level message is a message that is valid for a specific UE. For example, the cell-level message can be Radio Resource Control (RRC) signaling, and the UE-level message can be UE-specific signaling.

[0087] For example, as shown in FIG3C , taking the first time unit as time slot 3 as an example, time slot 3 includes symbols 0 to 13. The second indication information may indicate the following: symbols 0 to 5 are configured as uplink for the transmission of the second connection, symbol 6 is configured as flexible for the transmission of the second connection, symbols 7 to 9 are configured as downlink for the transmission of the second connection, and symbols 10 to 13 are configured as SBFD for the transmission of the second connection. Further, the first indication information may indicate the following: among symbols 0 to 13, the transmission direction of symbols 10 to 11 configured as SBFD for the transmission of the second connection is downlink, and the transmission direction of symbols 12 to 13 configured as SBFD for the transmission of the second connection is uplink. In other words, the terminal device can perform downlink reception through the second connection on symbols 10 to 11 and perform uplink transmission through the second connection on symbols 12 to 13.

[0088] For example, the first indication information and the second indication information are carried in TDD-UL-DL-ConfigDedicated signaling, and the TDD-UL-DL-ConfigDedicated signaling is at the UE level.

[0089] For another example, the first indication information is carried in TDD-UL-DL-ConfigDedicated signaling, which is UE-level, and the second indication information is carried in TDD-UL-DL-ConfigCommon signaling, which is cell-level.

[0090] The power control method of the embodiment of the present application is introduced with reference to FIG4 .

[0091] As shown in Figure 4, time slots 1, 2, 3, 4, 5, and 6 all include symbols configured as SBFD for the transmission of the second connection. Time slots 1, 2, 3, 4, 5, and 6 each include 14 symbols, and the first seven symbols in each time slot are configured as downlink for the transmission of the second connection, while the last seven symbols in each time slot are configured as SBFD for the transmission of the second connection. That is, for the second connection, the first seven symbols in time slots 1, 2, 3, 4, 5, and 6 are downlink symbols, and the last seven symbols are SBFD symbols. The symbols configured as SBFD for the transmission of the second connection included in time slots 1, 2, and 3 are all used for downlink transmission, while the symbols configured as SBFD for the transmission of the second connection included in time slots 4, 5, and 6 are not used for downlink transmission.

[0092] In this case, the transmission power used by the terminal device when performing uplink transmission through the first connection in time slot 1, time slot 2, time slot 3, time slot 4, time slot 5 and time slot 6 can be limited to less than or equal to the first power. Alternatively, the transmission power used by the terminal device when performing uplink transmission through the first connection in time slot 1, time slot 2 and time slot 3 is limited to less than or equal to the second power, and the transmission power used when performing uplink transmission through the first connection in time slot 4, time slot 5 and time slot 6 is limited to less than or equal to the first power. Since the terminal device will not perform uplink transmission on the second connection in time slot 1, time slot 2 and time slot 3, the transmission power when the terminal device performs uplink transmission in time slot 1, time slot 2 and time slot 3 through the first connection is not limited to less than or equal to the first power, but is limited to less than or equal to the second power, which helps to improve the utilization rate of the transmission power of the terminal device. For the first power and the second power, please refer to the relevant introduction above and will not be repeated here.

[0093] The above embodiments can be used alone or in combination with each other to achieve different technical effects.

[0094] Please refer to Figure 5, which is a schematic diagram of the structure of an apparatus provided in an embodiment of the present application, which supports communication via a first connection and a second connection. As shown in Figure 5, the apparatus 50 includes a sending unit 501. Optionally, the apparatus 50 may also include a determining unit 502. Optionally, the apparatus 50 may also include a receiving unit 503. The apparatus 50 may perform the relevant steps of the terminal device in the aforementioned method embodiment.

[0095] The sending unit 501 is used to send first information in a first time unit through a first connection, where the sending power of the first information is less than or equal to the first power, and the first time unit includes at least one sub-time unit, wherein the transmission configuration of the at least one sub-time unit for the second connection is uplink, flexible and / or SBFD.

[0096] In a possible implementation, the determining unit 502 is configured to determine first information.

[0097] In a possible implementation manner, the first power is a maximum transmit power configured for the first connection.

[0098] In a possible implementation, a sub-time unit configured as SBFD for transmission of the second connection in the at least one sub-time unit is not used for downlink reception.

[0099] In a possible implementation, the receiving unit 503 is configured to receive first indication information, where the first indication information indicates a transmission direction of a sub-time unit in which the transmission configuration for the second connection in the first time unit is SBFD.

[0100] In a possible implementation, the receiving unit 503 is configured to receive second indication information, where the second indication information indicates a transmission configuration of a sub-time unit in the first time unit for the second connection.

[0101] In one possible implementation, if the transmission configuration for the second connection in the first time unit is downlink, the transmission power of the first information is less than or equal to the second power, the second power is the maximum total transmission power of the device 50, and the second power is greater than the first power.

[0102] In a possible implementation, the first connection is a connection between the apparatus 50 and a first network device, and the second connection is a connection between the apparatus 50 and a second network device.

[0103] Specifically, in this case, the operations performed by the sending unit 501, the determining unit 502, and the receiving unit 503 may refer to the introduction of the terminal device in the above embodiment.

[0104] The device 50 can also be used to implement other functions of the terminal device in the above-mentioned embodiment, which will not be described in detail here. Based on the same inventive concept, the principles and beneficial effects of the device 50 provided in the embodiment of the present application to solve the problem are similar to the principles and beneficial effects of the terminal device in the embodiment of the method of the present application. Please refer to the principles and beneficial effects of the implementation of the method. For the sake of brevity, they will not be described here.

[0105] Please refer to Figure 6, which shows another device 60 provided in an embodiment of the present application, which supports communication via a first connection and a second connection. Device 60 can be used to implement the functions of the terminal device in the above-mentioned method embodiment. Device 60 may include a transceiver 601 and a processor 602. Transceiver 601 can perform corresponding actions under the control of processor 602. Optionally, device 60 may also include a memory 603. The transceiver 601, processor 602, and memory 603 may be connected via a bus 604 or other means. The bus is represented by a bold line in Figure 6, and the connection between other components is only for schematic illustration and is not intended to be limiting. Buses can be divided into address buses, data buses, control buses, etc. For ease of illustration, only one bold line is used in Figure 6, but this does not mean that there is only one bus or one type of bus.

[0106] The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, and is used for information exchange between devices, units, or modules. The embodiments of the present application do not limit the specific connection medium between the above-mentioned transceiver 601, processor 602, and memory 603.

[0107] The memory 603 may include a read-only memory and a random access memory, and provides instructions and data to the processor 602. A portion of the memory 603 may also include a non-volatile random access memory (NVRAM).

[0108] The processor 602 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor, or alternatively, the processor 602 may be any conventional processor.

[0109] In one example, when the terminal device adopts the form shown in Figure 6, the processor in Figure 6 can execute the method executed by the terminal device in any of the above method embodiments.

[0110] In an optional embodiment, the memory 603 is used to store program instructions; the processor 602 is used to call the program instructions stored in the memory 603 to execute the steps performed by the terminal device in the above embodiment. Specifically, the functions / implementation processes of the sending unit, the determining unit, and the receiving unit in Figure 5 can all be implemented by the processor 602 in Figure 6 calling the computer-executable instructions stored in the memory 603. Alternatively, the functions / implementation processes of the determining unit in Figure 5 can be implemented by the processor 602 in Figure 6 calling the computer-executable instructions stored in the memory 603, and the functions / implementation processes of the sending unit and the receiving unit in Figure 5 can be implemented by the transceiver 601 in Figure 6.

[0111] In the embodiments of the present application, a computer program (including program code) capable of executing the steps involved in the above method can be run on a general-purpose computing device such as a computer, which includes a CPU, a random access memory (RAM), a read-only memory (ROM), and other processing elements and storage elements, and can implement the methods provided in the embodiments of the present application. The computer program can be recorded on, for example, a computer-readable recording medium, and loaded into the computing device via the computer-readable recording medium and run therein.

[0112] Based on the same inventive concept, the principle and beneficial effects of the device 60 provided in the embodiment of the present application in solving the problem are similar to the principle and beneficial effects of the terminal device in the method embodiment of the present application in solving the problem. Please refer to the principle and beneficial effects of the implementation of the method. For the sake of concise description, they will not be repeated here.

[0113] The aforementioned devices (such as device 50 and device 60 ) may be, for example, chips or chip modules.

[0114] The present application also provides a chip that supports communication via a first connection and a second connection. The chip can execute the steps related to the terminal device in the aforementioned method embodiment.

[0115] The chip is used to: send first information in a first time unit through a first connection, the transmission power of the first information is less than or equal to the first power, the first time unit includes at least one sub-time unit, wherein the at least one sub-time unit is configured for transmission of the second connection as uplink, flexible and / or SBFD.

[0116] In a possible implementation, the chip may also be used to determine the first information.

[0117] In a possible implementation manner, the first power is a maximum transmit power configured for the first connection.

[0118] In a possible implementation, a sub-time unit configured as SBFD for transmission of the second connection in the at least one sub-time unit is not used for downlink reception.

[0119] In a possible implementation, the chip may be further configured to receive first indication information, where the first indication information indicates a transmission direction of a sub-time unit in the first time unit in which the transmission configuration for the second connection is SBFD.

[0120] In a possible implementation, the chip may be further configured to receive second indication information, where the second indication information indicates a transmission configuration of a sub-time unit in the first time unit for the second connection.

[0121] In a possible implementation, if the transmission configuration for the second connection in the first time unit is downlink, the transmit power of the first information is less than or equal to the second power, the second power is the maximum total transmit power of the chip, and the second power is greater than the first power.

[0122] In a possible implementation, the first connection is a connection between the chip and a first network device, and the second connection is a connection between the chip and a second network device.

[0123] Specifically, in this case, the operations performed by the chip can refer to the introduction of the terminal device in the above method embodiment.

[0124] In one possible implementation, the chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the at least one first memory and the at least one processor are interconnected via a line, and instructions are stored in the first memory; the at least one second memory and the at least one processor are interconnected via a line, and the second memory stores data that needs to be stored in the embodiment of the method.

[0125] For each device or product applied to or integrated in the chip, each module contained therein can be implemented in the form of hardware such as circuits, or at least some of the modules can be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules can be implemented in the form of hardware such as circuits.

[0126] Based on the same inventive concept, the principles and beneficial effects of the chip provided in the embodiment of the present application in solving the problem are similar to the principles and beneficial effects of the terminal device in the embodiment of the method of the present application in solving the problem. Please refer to the principles and beneficial effects of the implementation of the method. For the sake of concise description, they will not be repeated here.

[0127] Please refer to Figure 7, which is a schematic diagram of the structure of a chip module provided in an embodiment of the present application, wherein the chip module supports communication via a first connection and a second connection. Chip module 70 can perform the relevant steps of the terminal device in the aforementioned method embodiment, and the chip module 70 includes: a communication interface 701 and a chip 702.

[0128] The communication interface is used for internal communication within the chip module or for communication between the chip module and external devices. The chip is used to implement the functions of the terminal device in the embodiments of this application. For details, see the method embodiments. Optionally, the chip module 70 may also include a storage module 703 and a power module 704. The storage module 703 is used to store data and instructions. The power module 704 is used to provide power to the chip module.

[0129] For each device or product applied to or integrated in the chip module, each module contained therein can be implemented by hardware such as circuits. Different modules can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components. Alternatively, at least some modules can be implemented by software programs, which run on a processor integrated inside the chip module, and the remaining (if any) modules can be implemented by hardware such as circuits.

[0130] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program includes one or more program instructions. When the one or more program instructions are loaded and run by a computer, the method provided by the above method embodiment is executed.

[0131] An embodiment of the present application further provides a computer program product comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the method provided in the above method embodiment.

[0132] An embodiment of the present application further provides a communication system, which may include the terminal device and the network device in the method embodiment, wherein the terminal device supports communication via a first connection and a second connection, wherein the first connection and the second connection are two connections between the terminal device and the network device. Alternatively, the system may include the terminal device in the method embodiment, the first network device, and the second network device, wherein the terminal device supports communication via a first connection and a second connection, wherein at least the first connection exists between the terminal device and the first network device, and at least the second connection exists between the terminal device and the second network device.

[0133] Regarding the various modules / units contained in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or partly software modules / units and partly hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / units can be implemented in the form of hardware such as circuits. The element can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0134] It should be noted that for the aforementioned various method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0135] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0136] The modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0137] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be completed by program instructions and related hardware. The program instructions can be stored in a computer-readable storage medium, which may include: a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0138] The above disclosure is only one embodiment of the present application, which is only a part of the embodiments of the present application and cannot be used to limit the scope of rights of the present application.

Claims

1. A power control method, characterized in that: Applied to a terminal device, the terminal device supports communication via a first connection and a second connection; Through the first connection, first information is sent in a first time unit, and the transmission power of the first information is less than or equal to the first power. The first time unit includes at least one sub-time unit, wherein the at least one sub-time unit is configured for uplink, flexible and / or non-overlapping sub-band full-duplex SBFD for transmission of the second connection.

2. The method according to claim 1, characterized in that: The first power is a maximum transmission power configured for the first connection.

3. The method according to claim 1 or 2, characterized in that: The sub-time unit in the at least one sub-time unit for which the transmission configuration for the second connection is SBFD is not used for downlink reception.

4. The method according to claim 3, characterized in that The method further comprises: First indication information is received, where the first indication information indicates a transmission direction of a sub-time unit in which the transmission configuration for the second connection in the first time unit is SBFD.

5. The method according to claim 1, characterized in that The method further comprises: Second indication information is received, where the second indication information indicates a transmission configuration of a sub-time unit in the first time unit for the second connection.

6. The method according to claim 1, characterized in that If the transmission configuration of the first time unit for the second connection is downlink, the transmission power of the first information is less than or equal to a second power, the second power is the maximum total transmission power of the terminal device, and the second power is greater than the first power.

7. The method according to claim 1, characterized in that The first connection is a connection between the terminal device and a first network device, and the second connection is a connection between the terminal device and a second network device.

8. A device, characterized in that: The method comprises a unit for implementing the method according to any one of claims 1 to 7.

9. A device, characterized in that: The invention comprises a processor, wherein the processor is used to implement the method according to any one of claims 1 to 7.

10. A chip module, characterized in that: The chip module includes a communication interface and a chip, wherein: the communication interface is used for internal communication within the chip module, or for the chip module to communicate with an external device; and the chip is used to execute the method described in any one of claims 1 to 7.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions. When the program instructions are executed by a computer, the method according to any one of claims 1 to 7 is executed.

12. A chip, characterized in that: The chip comprises a processor and a memory, wherein the processor and the memory are used for the chip to execute the method according to any one of claims 1 to 7.

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