Power control method and device

Abstract

The invention discloses a power control method and device which are applied to terminal equipment supporting communication through a first connection and a second connection. The method comprises: sending first information in a first time unit through a first connection, the sending power of the first information being less than or equal to the first power, the first time unit comprising at least one sub-time unit, the at least one sub-time unit being configured as uplink, flexible and / or non-overlapping sub-band full duplex SBFD for the transmission of a second connection. In the embodiment of the invention, the control on the sending power of the first connection is realized on the first time unit comprising the sub-time unit which is configured to be SBFD, flexible and / or uplink for the transmission of the second connection, so that the mutual interference between the first connection and the second connection during uplink sending at the same time is reduced, and the communication performance is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a power control method and device. Background Art

[0002] Non-overlap subbandfull duplex (SBFD) is introduced in the next generation wireless communication (next radio, 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 terminal devices, it is still half-duplex. In other words, the terminal device can only perform uplink transmission or downlink reception on the corresponding subband at a point in time. 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, the symbols of the uplink subband are inserted, and the transmission direction of the terminal device on the SBFD symbols is uplink or downlink.

[0003] Since the terminal device may perform uplink transmission on the SBFD symbol, the introduction of SBFD will have an impact on dual connectivity (DC) communication. Summary of the invention

[0004] 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 at the same time, and improving communication performance.

[0005] In a first aspect, the present application provides a communication method, which is applied to a terminal device that supports communication via a first connection and a second connection, the method comprising: sending first information in a first time unit via the first connection, the transmission power of the first information being less than or equal to the first power, the first time unit comprising 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.

[0006] In this technical solution, when the terminal device performs uplink transmission in a first time unit via 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 be 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.

[0007] In a possible implementation manner, the first power is a maximum transmission power configured for the first connection.

[0008] In a possible implementation manner, a sub-time unit in which the transmission configuration for the second connection is SBFD in the at least one sub-time unit is not used for downlink reception.

[0009] In a possible implementation manner, the method further includes: receiving 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.

[0010] 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.

[0011] In a 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.

[0012] 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 rate of the transmission power of the terminal device.

[0013] In a possible implementation manner, 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.

[0014] In a second aspect, the present application provides a device, comprising a unit for implementing the method described in the first aspect.

[0015] 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.

[0016] In an optional implementation, the device may further include a memory; the memory is used to store a computer program; and a processor, specifically used to call the computer program from the memory to execute the method described in the first aspect.

[0017] In a fourth aspect, the present application provides a chip, wherein the chip is used to execute the method described in the first aspect.

[0018] 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.

[0019] 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.

[0020] 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

[0021] Figure 1 It is a schematic diagram of a communication system architecture in a DC scenario provided by an embodiment of the present application;

[0022] Figure 2 It is a flowchart of a power control method provided by an embodiment of the present application;

[0023] Figure 3A This is a schematic diagram of a transmission configuration of time slot 1 provided in an embodiment of the present application;

[0024] Figure 3B This is a schematic diagram of a transmission configuration of time slot 2 provided in an embodiment of the present application;

[0025] Figure 3C This is a schematic diagram of a transmission configuration of time slot 3 provided in an embodiment of the present application;

[0026] Figure 3D This is a schematic diagram of a transmission configuration of time slot 4 provided in an embodiment of the present application;

[0027] Figure 3E This is a schematic diagram of a transmission configuration of time slot 5 provided in an embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of a transmission configuration of time slot 1 to time slot 6 provided in an embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of a device provided by the present application;

[0030] Figure 6 It is a structural schematic diagram of another device provided by the present application;

[0031] Figure 7 It is a structural schematic diagram of a chip module provided by this application. DETAILED DESCRIPTION

[0032] 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 may 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 may be singular or plural. The character " / " can indicate that the previously associated objects are in an "or" relationship.

[0033] 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 plural 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.

[0034] In the embodiments of the present application, "equal to" can be used in conjunction with "less than" or "greater than", but not in conjunction with "less than" and "greater than" at the same time. "Equal to" is used in conjunction with "less than" and is applicable to the technical solution adopted by "less than". "Equal to" is used in conjunction with "greater than" and is applicable to the technical solution adopted by "greater than".

[0035] First, some concepts or technologies involved in the embodiments of the present application are introduced.

[0036] 1. Terminal equipment

[0037] In the embodiments of the present application, the terminal device is a device having a wireless transceiver function 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 equipment, Internet of Things terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, wireless communication equipment, 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, the sixth generation mobile communication system (6th-generation, 6G) or the next generation of wireless communication technology, etc.

[0038] For example, the terminal device can be a mobile phone, a tablet computer (pad), a desktop computer, a laptop computer, an all-in-one computer, a vehicle-mounted 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 devices. The embodiments of the present application do not limit the specific technology and specific device form used by the terminal device.

[0039] 2. Network equipment

[0040] In the embodiment of the present application, the network device is a device that provides wireless communication functions for the terminal device. The network device can be an access network (AN) device or a satellite, and the AN device can be a radio access network (RAN) device. The network device can support at least one wireless communication technology, such as LTE, NR, 6G, etc.

[0041] For example, the network device includes, but is not limited to: the next generation base station (generation node B, gNB), evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node ​​B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transmission and reception point (transmission and reception point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc. The network device can also be a wireless controller, a centralized unit (centralized unit, CU) and / or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and 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 functions for the terminal device, such as a chip module. For example, the chip module may include a chip and may also include other discrete devices. The embodiments of the present application do not limit the specific technology and specific device form used by the network device.

[0042] 3. Time unit

[0043] In the embodiment of the present application, the time unit is a time domain unit for uplink transmission and / or downlink reception. Specifically, in the time domain, the terminal device and the network device communicate with each other in units or granularities of time units. Exemplarily, the time unit may be: a radio frame, a subframe, a slot, a mini-slot or a symbol, etc. Among them, the symbol may be an orthogonal frequency division multiplexing (OFDM) symbol.

[0044] A time unit may be composed of one or more sub-time units, and a sub-time unit may 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 may be a time slot, and a subframe may include one or more time slots. The number of time slots in a subframe may 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 may 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.

[0045] In addition, the transmission direction of the time unit can be described or characterized by the transmission configuration of the time unit. Specifically, the transmission configuration of the time unit can include uplink, downlink and / or flexible. The transmission configuration of the time unit is related to the transmission configuration of the sub-time unit included in the time unit.

[0046] For example, if the transmission configuration of the 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.

[0047] For another example, if the transmission configuration of the 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.

[0048] For another example, if the transmission configuration of a sub-time unit is flexible, the sub-time unit may be referred to as a flexible sub-time unit, and the terminal device may perform flexible communication in the sub-time unit.

[0049] For another example, if a sub-time unit is configured with an uplink sub-band, the sub-time unit may be referred to as an SBFD sub-time unit. The terminal device may perform uplink transmission or downlink reception in the sub-time unit. Specifically, whether the terminal device performs uplink transmission or downlink reception in the SBFD sub-time unit may be determined based on the network device indication.

[0050] In a possible implementation, the transmission configuration of the time unit may include SBFD and / or non-SBFD (Non-SBFD), that is, the time unit may include SBFD time unit and / or Non-SBFD time unit, wherein the SBFD time unit refers to a time unit configured with an uplink subband, and the 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 the time unit may include uplink, downlink, flexible and / or SBFD. Similarly, the transmission configuration of the sub-time unit may include SBFD and / or non-SBFD (Non-SBFD), that is, the sub-time unit may include SBFD sub-time unit and / or Non-SBFD sub-time unit, wherein the SBFD sub-time unit refers to a sub-time unit configured with an uplink subband, and the 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 the sub-time unit may include uplink, downlink, flexible and / or SBFD.

[0051] In some embodiments, the configuration of the uplink sub-band in the sub-time unit 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 a SBFD sub-time unit.

[0052] 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 sub-band corresponding to the SBFD sub-time unit may include an uplink sub-band and a downlink sub-band.

[0053] However, for the terminal device, whether the SBFD sub-time unit is used for uplink transmission, downlink reception, or flexible communication is indicated to the terminal device by the network device. For example, for the terminal device, if the 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 on the SBFD sub-time unit and the uplink subband corresponding to the SBFD sub-time unit.

[0054] Take the symbol as an example. If the transmission configuration of the symbol is uplink, the symbol can be called an uplink symbol. If the transmission configuration of the symbol is downlink, the symbol can be called a downlink symbol. If the transmission configuration of the symbol is flexible, the symbol can be called a flexible symbol. If the transmission configuration of the symbol is SBFD, the symbol can be called an SBFD symbol. Alternatively, if the symbol is configured with an uplink subband, the symbol can be called an SBFD symbol.

[0055] Take a time slot as an example. If the transmission configuration of a time slot is uplink, the time slot can be called an uplink time slot. If the transmission configuration of a time slot is downlink, the time slot can be called a downlink time slot. If the transmission configuration of a time slot is flexible, the time slot can be called a flexible time slot. If the transmission configuration of a time slot is SBFD, the time slot can be called an SBFD time slot. Alternatively, if an uplink subband is configured in a time slot, the time slot can be called an SBFD time slot.

[0056] It should be noted that, for a time unit, the transmission configurations of all sub-time units included in a time unit may be the same. For example, the transmission configurations of all sub-time units included in a time unit are uplink, and the time unit may be referred to as 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.

[0057] Take a time slot as an example. The transmission configuration of a time slot can also be called a time slot configuration or a slot configuration. Take a subframe as an example. The transmission configuration of a subframe can also be called a subframe configuration. Take a symbol as an example. The transmission configuration of a symbol can also be called a symbol configuration.

[0058] The embodiment of the present application provides a power control method, so that when a terminal device communicates through a first connection and a second connection, the transmission power of the first connection can be controlled in a time unit including a sub-time unit in which the transmission configuration for the second connection is SBFD, flexible and / or uplink. This helps to reduce the impact of the introduction of SBFD on dual-connection communication and improve communication performance.

[0059] 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. Among them, DC can be NR-DC (new radio-dual connectivity), EN-DC (e-UTRAN nR-dual connectivity), NGEN-DC (next generation ran E-UTRA newradio-dual connectivity), NE-DC (new radio E-UTRA-dual connectivity).

[0060] like Figure 1 As shown, it is a schematic diagram of a communication system architecture in a DC scenario of an embodiment of the present application. Figure 1 As shown, the terminal device is connected to the first network device and the second network device. The connection between the terminal device and the first network device is the first connection, and the connection between the terminal device and the second network device is the second connection. The terminal device can communicate on the first connection and the second connection at the same time. Figure 1 In the DC scenario shown, 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 and manages control signaling in the DC scenario, and the secondary RAN node is connected to the primary node.

[0061] It should be noted that Figure 1 This is only a schematic diagram of the communication system architecture in the DC scenario and does not constitute a limitation on the communication system architecture in the DC scenario. Figure 1 The communication system architecture shown may include two or more network devices, two or more terminal devices, etc.

[0062] For another example, the embodiments of the present application may also be applied to a scenario where there are two or more connections between a terminal device and a network device.

[0063] 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 (eg, a chip, a chip module or a processor placed inside the terminal device).

[0064] The power control method is described below by taking the communication of the terminal device through the first connection and the second connection as an example. For example, 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. 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 network device.

[0065] like Figure 2 As shown, it is a flow chart of a power control method according to an embodiment of the present application, which specifically includes the following steps.

[0066] Step 201: The terminal device determines first information.

[0067] 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 way of obtaining the first information. For example, the first information is uplink information to be sent.

[0068] It should be noted that step 201 is an optional step. In other words, the terminal device may not perform step 201.

[0069] 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.

[0070] The first time unit includes at least one sub-time unit. The at least one sub-time unit is configured as uplink, flexible and / or SBFD for transmission of the second connection. That is, the at least one sub-time unit includes an uplink sub-time unit, a flexible sub-time unit, and / or a SBFD sub-time unit.

[0071] In an embodiment of the present application, when a terminal device performs uplink transmission in a first time unit via a 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 be 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.

[0072] 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 (Downlink Control Information, DCI). High-layer signaling may include Radio Resource Control (RRC) signaling.

[0073] Taking the first connection as a connection between the terminal device and the first network device, the second connection as a connection between the terminal device and the second network device, and the first network device as a primary RAN node and the second network device as a secondary RAN node as an example, the first power may 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 transmission power configured for the secondary serving cell (SCell).

[0074] For example, take the first time unit as time slot 1. Figure 3A As shown, time slot 1 includes symbols 0 to 13. Among them, symbols 7 to 9 are configured as uplink for the second connection transmission in symbols 0 to 13, symbols 10 to 13 are configured as SBFD for the second connection transmission in symbols 0 to 13, symbol 6 is configured as flexible for the second connection transmission in symbols 0 to 13, and symbols 0 to 5 are configured as downlink for the second connection transmission in symbols 0 to 13. In other words, 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.

[0075] For another example, take the first time unit as time slot 2. Figure 3BAs shown, time slot 2 includes symbols 0 to 13. Among them, symbols 0 to 13 are configured as SBFD for the second connection transmission, symbols 7 are configured as flexible for the second connection transmission, and symbols 8 to 13 are configured as downlink for the second connection transmission. 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.

[0076] Further, 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 transmission power adopted by the terminal device when sending the first information through the first connection in the first time unit is limited to be less than or equal to the first power. Among them, the SBFD sub-time unit is not used for downlink reception means that the SBFD sub-time unit is not used for downlink reception of the terminal device, which may include uplink transmission and / or flexible communication.

[0077] For example, take the first time unit as time slot 3. Figure 3C As shown, time slot 3 includes symbols 0 to 13. Among them, symbols 7-9 are configured as downlink for the second connection transmission in symbols 0 to 13, symbols 10-13 are configured as SBFD for the second connection transmission in symbols 0 to 13, symbols 10-11 are used for downlink reception, symbols 12-13 are used for uplink transmission, symbols 6 is configured as a flexible symbol for the second connection transmission in symbols 0 to 13, and symbols 0-5 are configured as uplink for the second connection transmission in symbols 0 to 13. That is, for the second connection, symbols 0-5 are uplink symbols, symbol 6 is a flexible symbol, symbols 7-9 are downlink symbols, and symbols 10-13 are SBFD symbols. Since the terminal device may perform uplink transmission on the second connection on symbols 0-6 and symbols 12-13, 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.

[0078] 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, when the terminal device sends the first information through the first connection in the first time unit, the transmission power of the first information may not be limited, thereby helping to increase the possibility of successful transmission.

[0079] 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 is a downlink time unit, which 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 a SBFD sub-time unit, wherein all SBFD sub-time units in the first time unit are used for downlink reception.

[0080] For example, take the first time unit as time slot 4. Figure 3D As shown, time slot 4 includes symbol 0 to symbol 13. Among them, the symbols configured as downlink for the transmission of the second connection are symbols 0 to 13. That is, for the second connection, symbols 0 to 13 are all downlink 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 4 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.

[0081] For another example, take the first time unit as time slot 5. Figure 3E As shown, time slot 5 includes symbol 0 to symbol 13. Among them, symbols 0-9 are configured as downlink for the second connection transmission, and symbols 10-13 are configured as SBFD for the second connection transmission. Symbols 10-13 are used for downlink reception. In other words, for the second connection, symbols 0-9 are downlink symbols, and symbols 10-13 are SBFD symbols. Since the terminal device will not perform uplink transmission on the second connection on symbols 0-13, 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.

[0082] 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.

[0083] 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 the first indication information and the 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.

[0084] 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 valid for all terminal devices in the cell, and the UE-level message is a message valid for a specific UE. For example, the cell-level message can be a Radio Resource Control (RRC) signaling, and the UE-level message can be a UE-specific signaling.

[0085] For example, Figure 3C As shown, 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 0-5 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 7-9 are configured as downlink for the transmission of the second connection, and symbols 10-13 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 10-11 whose transmission configuration for the second connection is SBFD is downlink, and the transmission direction of symbols 12-13 whose transmission configuration for the second connection is SBFD is uplink. In other words, the terminal device can perform downlink reception through the second connection on symbols 10-11, and perform uplink transmission through the second connection on symbols 12-13.

[0086] 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.

[0087] 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.

[0088] Combination Figure 4 The power control method of the embodiment of the present application is introduced.

[0089] like Figure 4 As shown, time slot 1, time slot 2, time slot 3, time slot 4, time slot 5 and time slot 6 all include symbols configured as SBFD for the transmission of the second connection, time slot 1, time slot 2, time slot 3, time slot 4, time slot 5 and time slot 6 all include 14 symbols, and the first 7 symbols in each time slot are configured as downlink for the transmission of the second connection, and the last 7 symbols in each time slot are configured as SBFD for the transmission of the second connection. That is to say, for the second connection, the first 7 symbols in time slot 1, time slot 2, time slot 3, time slot 4, time slot 5 and time slot 6 are downlink symbols, and the last 7 symbols are SBFD symbols. Among them, the symbols configured as SBFD for the transmission of the second connection included in the three time slots of time slot 1, time slot 2 and time slot 3 are all used for downlink transmission, and the symbols configured as SBFD for the transmission of the second connection included in the three time slots of time slot 4, time slot 5 and time slot 6 are not used for downlink transmission.

[0090] 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, which will not be repeated here.

[0091] The above embodiments may be used alone or in combination with each other to achieve different technical effects.

[0092] See also Figure 5 , Figure 5is a schematic diagram of a structure of a device provided in an embodiment of the present application, the device supports communication through a first connection and a second connection. Figure 5 As shown, the apparatus 50 includes a sending unit 501. Optionally, the apparatus 50 may further include a determining unit 502. Optionally, the apparatus 50 may further include a receiving unit 503. The apparatus 50 may execute the relevant steps of the terminal device in the foregoing method embodiment.

[0093] 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 at least one sub-time unit is configured as uplink, flexible and / or SBFD for the transmission of the second connection.

[0094] In a possible implementation manner, the determining unit 502 is configured to determine first information.

[0095] In a possible implementation manner, the first power is a maximum transmission power configured for the first connection.

[0096] In a possible implementation manner, a sub-time unit in which the transmission configuration for the second connection is SBFD in the at least one sub-time unit is not used for downlink reception.

[0097] In a possible implementation manner, 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.

[0098] 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.

[0099] In a 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 device 50, and the second power is greater than the first power.

[0100] 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.

[0101] 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.

[0102] 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 principle and beneficial effect of the device 50 provided in the embodiment of the present application to solve the problem are similar to the principle and beneficial effect of the terminal device in the method embodiment of the present application to solve the problem, which can be referred to the principle and beneficial effect of the implementation of the method, and will not be described in detail here for the sake of concise description.

[0103] See also Figure 6 , Figure 6 Another device 60 provided in an embodiment of the present application supports communication via a first connection and a second connection. The device 60 can be used to implement the functions of the terminal device in the above method embodiment. The device 60 may include a transceiver 601 and a processor 602, and the transceiver 601 may perform corresponding actions under the control of the processor 602. Optionally, the device 60 may also include a memory 603. The transceiver 601, the processor 602, and the memory 603 may be connected via a bus 604 or other means. The bus is Figure 6 The connections between other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0104] The coupling in the embodiment 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 specific connection medium between the above-mentioned transceiver 601, processor 602, and memory 603 is not limited in the embodiment of the present application.

[0105] 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).

[0106] 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, discrete hardware components, etc. A general-purpose processor may be a microprocessor, and optionally, the processor 602 may also be any conventional processor, etc.

[0107] In one example, when the terminal device uses Figure 6 When the form shown is Figure 6 The processor in can execute the method executed by the terminal device in any of the above method embodiments.

[0108] In an optional implementation, 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 executed by the terminal device in the above embodiment. Figure 5 The functions / implementation processes of the sending unit, determining unit, and receiving unit in the Figure 6 The processor 602 in the embodiment calls the computer execution instructions stored in the memory 603 to implement. Or, Figure 5 The function / implementation process of determining the unit in can be achieved by Figure 6 The processor 602 in the embodiment calls the computer execution instruction stored in the memory 603 to implement, Figure 5 The functions / implementation process of the sending unit and receiving unit can be achieved through Figure 6 It is implemented by the transceiver 601 in.

[0109] In the embodiment of the present application, the method provided in the embodiment of the present application can be implemented by running a computer program (including program code) capable of executing each step involved in the above method on a general computing device such as a computer including a CPU, a random access memory (RAM), a read-only memory (ROM) and other processing elements and storage elements. The computer program can be recorded on a computer-readable recording medium, for example, and loaded into the above computing device through the computer-readable recording medium and run therein.

[0110] Based on the same inventive concept, the principle and beneficial effects of solving the problem by the device 60 provided in the embodiment of the present application are similar to the principle and beneficial effects of solving the problem by the terminal device in the method embodiment of the present application. 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.

[0111] The aforementioned device (such as device 50 and device 60 ) may be, for example, a chip or a chip module.

[0112] The embodiment of the present application further provides a chip, which supports communication via a first connection and a second connection. The chip can execute the steps related to the terminal device in the above method embodiment.

[0113] The chip is used to: send first information in a first time unit through a first connection, the sending 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 as uplink, flexible and / or SBFD for the transmission of the second connection.

[0114] In a possible implementation manner, the chip may also be used to determine the first information.

[0115] In a possible implementation manner, the first power is a maximum transmission power configured for the first connection.

[0116] In a possible implementation manner, a sub-time unit in which the transmission configuration for the second connection is SBFD in the at least one sub-time unit is not used for downlink reception.

[0117] In a possible implementation manner, the chip may also be used 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.

[0118] In a possible implementation manner, the chip may also be used 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.

[0119] In a 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 chip, and the second power is greater than the first power.

[0120] In a possible implementation manner, 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.

[0121] Specifically, in this case, the operations performed by the chip can refer to the introduction of the terminal device in the above method embodiment.

[0122] 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 lines, and instructions are stored in the first memory; the at least one second memory and the at least one processor are interconnected via lines, and the second memory stores data that needs to be stored in the method embodiment.

[0123] 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 a processor integrated inside the chip, and the remaining (if any) modules can be implemented in the form of hardware such as circuits.

[0124] Based on the same inventive concept, the principles and beneficial effects of the chip provided in the embodiment of the present application for solving the problem are similar to the principles and beneficial effects of the terminal device in the method embodiment of the present application for 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.

[0125] See also Figure 7 , Figure 7 The schematic diagram of the structure of a chip module provided in an embodiment of the present application supports communication via a first connection and a second connection. The chip module 70 can execute 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.

[0126] Among them, the communication interface is used for internal communication of the chip module, or for the chip module to communicate with an external device; the chip is used to implement the functions of the terminal device in the embodiment of the present application, see the method embodiment for details. 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.

[0127] 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, and 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 of the modules can be implemented by software programs that run on a processor integrated inside the chip module, and the remaining (if any) modules can be implemented by hardware such as circuits.

[0128] An embodiment of the present application also 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.

[0129] The embodiment of the present application also provides a computer program product including a computer program or instructions. When the computer program or instructions are executed on a computer, the computer executes the method provided by the above method embodiment.

[0130] The embodiment of the present application also provides a communication system, which may include the terminal device and the network device in the method embodiment, the terminal device supports communication through a first connection and a second connection, and 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, the first network device and the second network device in the method embodiment, the terminal device supports communication through a first connection and a second connection, there is at least a first connection between the terminal device and the first network device, and there is at least a second connection between the terminal device and the second network device.

[0131] Regarding the various modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, or hardware modules / units, or they can be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units included 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 a 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 included therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, 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 a 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 in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0132] It should be noted that, for the above-mentioned various method embodiments, for the sake of simplicity of description, 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.

[0133] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0134] The modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0135] A person of ordinary skill in the art may understand that all or part of the steps in the various methods of the above-mentioned embodiments may be completed by program instructions and related hardware. The program instructions may be stored in a computer-readable storage medium. The computer-readable storage medium may include: a flash drive, a ROM, a RAM, a magnetic disk or an optical disk, etc.

[0136] 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.

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