Power adjustment method and device, terminal and network side equipment

Abstract

The invention discloses a power adjustment method and device, a terminal and network side equipment, and belongs to the field of communication, and the power adjustment method comprises the steps that the terminal receives power rollback information of uplink transmission from the network side equipment, the power backoff information of the uplink transmission comprises at least one of the following: a first power backoff value, a power backoff value set and a power backoff range; and under the condition that the terminal works in the full duplex mode, the terminal determines a power rollback value or transmitting power corresponding to the uplink transmission on the first time unit according to the power rollback information of the uplink transmission. According to the embodiment of the invention, the problem that the downlink receiving of the terminal is influenced by self-interference when the terminal works in the full-duplex mode can be solved.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a power adjustment method, apparatus, terminal and network-side equipment. Background Art

[0002] In cellular networks, in order to more flexibly utilize limited spectrum resources, dynamically match business needs, improve resource utilization efficiency, and data transmission uplink coverage, latency and other performance, the full-duplex mode is introduced, that is, uplink transmission and downlink transmission can be carried out simultaneously at different frequency domain locations at the same time. When the terminal works in full-duplex mode, due to the simultaneous transmission and reception, self-interference will be generated, affecting the downlink reception performance of the terminal.

[0003] When the terminal works in full-duplex mode, how to solve the influence of self-interference on the downlink reception of the terminal is a problem that needs to be solved. Summary of the invention

[0004] The embodiments of the present application provide a power adjustment method, apparatus, terminal and network-side equipment, which can solve the problem that self-interference affects the downlink reception of the terminal when the terminal works in full-duplex mode.

[0005] In a first aspect, a power adjustment method is provided, which is performed by a terminal, and the method includes:

[0006] The terminal receives power backoff information of uplink transmission from the network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range;

[0007] In a case where the terminal operates in full-duplex mode, the terminal determines a power backoff value or a transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission.

[0008] In a second aspect, a power adjustment method is provided, which is performed by a network side device, and the method includes:

[0009] The network side device sends power backoff information of uplink transmission to the terminal, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range. The power backoff information of uplink transmission is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit when the terminal operates in full-duplex mode.

[0010] In a third aspect, a power adjustment device is provided, comprising:

[0011] A transceiver unit, configured to receive power backoff information of uplink transmission from a network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range;

[0012] The processing unit is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit according to the power backoff information of the uplink transmission when the terminal operates in full-duplex mode.

[0013] In a fourth aspect, a power adjustment device is provided, comprising:

[0014] A transceiver unit, used for sending power backoff information of uplink transmission to a terminal, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range, and the power backoff information of uplink transmission is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit when the terminal operates in full-duplex mode.

[0015] In a fifth aspect, a terminal is provided, which includes a transceiver, a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0016] In a sixth aspect, a terminal is provided, including a processor and a communication interface;

[0017] In which, the communication interface is used to receive power backoff information of uplink transmission from a network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range; and the processor is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit according to the power backoff information of the uplink transmission when the terminal operates in full-duplex mode.

[0018] In the seventh aspect, a network side device is provided, which includes a transceiver, a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0019] In the eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send power backoff information of uplink transmission to a terminal, wherein the power backoff information of the uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range, and the power backoff information of the uplink transmission is used to determine the power backoff value or transmit power corresponding to the uplink transmission on a first time unit when the terminal operates in full-duplex mode.

[0020] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0021] In the tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0022] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0023] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the power adjustment method as described in the first aspect, or the program / program product is executed by at least one processor to implement the steps of the power adjustment method as described in the second aspect.

[0024] In an embodiment of the present application, when the terminal operates in full-duplex mode, the terminal can determine the power backoff value or transmit power corresponding to the uplink transmission on the first time unit based on the power backoff information of the uplink transmission obtained from the network side device, thereby reducing the impact of self-interference on the downlink reception of the terminal and ensuring the downlink reception performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1It is a block diagram of a wireless communication system that can be applied in the embodiments of the present application.

[0027] Figure 2 This is a schematic diagram of a flexible duplex provided by this application.

[0028] Figure 3 This is a schematic diagram of another flexible duplex provided by this application.

[0029] Figure 4 It is a schematic flow chart of a power adjustment method provided according to an embodiment of the present application.

[0030] Figure 5 It is a schematic block diagram of a power adjustment device provided according to an embodiment of the present application.

[0031] Figure 6 It is a schematic block diagram of another power adjustment device provided according to an embodiment of the present application.

[0032] Figure 7 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0033] Figure 8 It is a schematic diagram of the hardware structure of a terminal provided according to an embodiment of the present application.

[0034] Fig. 9 It is a schematic block diagram of a network side device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0036] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or at least two. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0038] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0039] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0040] In order to facilitate a better understanding of the embodiments of the present application, the technologies related to the present application are explained.

[0041] When deploying traditional cellular networks, based on the available spectrum and service characteristics, duplexing methods such as frequency division duplex (FDD) or time division duplex (TDD) can be used to improve transmission performance. When FDD is used, uplink transmission (UL) and downlink transmission (DL) are located at different frequencies, and the two do not interfere with each other and can be carried out simultaneously. When TDD is used, uplink transmission and downlink transmission are located at the same frequency and are carried out in a staggered manner using time division.

[0042] In order to more flexibly utilize limited spectrum resources, dynamically match business needs, improve resource utilization efficiency, and improve uplink coverage, latency and other performance of data transmission, a flexible duplex mode is proposed.

[0043] An exemplary flexible duplex mode is: full-duplex on the network side, such as the network side working in the flexible sub-band full-duplex (SBFD) mode. Specifically, at the same time, uplink transmission and downlink transmission can be carried out simultaneously at different frequency domain positions. To avoid interference between uplink and downlink, a certain guard band (Guard Band) can be reserved between the frequency domain positions (corresponding to the duplex sub-band) corresponding to different transmission directions; half-duplex on the terminal side, that is, consistent with TDD, at the same time, only uplink transmission or downlink transmission can be carried out, and both cannot be carried out at the same time. It can be understood that in this flexible duplex mode, the uplink transmission and downlink transmission on the network side at the same time can only be for different terminals.

[0044] Figure 2 The schematic diagram of the above flexible duplex mode is given as an example (i.e. full duplex on the network side and half duplex on the terminal side). In a part of the downlink symbols, the network side semi-statically divides the frequency domain of a single carrier into three duplex sub-bands, where the two sides of the carrier are downlink duplex sub-bands and the center is uplink duplex sub-band, so as to reduce the interference to adjacent carriers. Figure 2 As shown in FIG. 1 , in the third time slot, UE1 and UE2 perform uplink transmission and downlink reception respectively. At this time, the terminal operates in half-duplex mode. Figure 2 In the figure, D represents a downlink time slot, X represents a flexible time slot, and U represents an uplink time slot.

[0045] Another exemplary flexible duplex mode is: both the terminal side and the network side are full-duplex, that is, both the terminal side and the network side work in a flexible SBFD mode (i.e., SBFD UE and SBFD gNB). Specifically, for the terminal side and the network side, at the same time, uplink transmission (uplink, UL) and downlink transmission (downlink, DL) can be performed simultaneously at different frequency domain positions, such as Figure 3 It should be noted that Figure 3 In the figure, X represents a flexible time slot.

[0046] When the terminal works in full-duplex (such as flexible SBFD) mode, when receiving the downlink transmission sent by the network side, it will be interfered by the signal from the terminal's own uplink transmission. Therefore, it is necessary to perform certain interference suppression or interference isolation at both ends of the terminal. The specific interference suppression level depends on the terminal's devices and implementation. At the same time, the impact of self-interference is also related to the uplink or downlink transmission being performed by the terminal.

[0047] When the terminal operates in full-duplex (such as flexible SBFD) mode, when the self-interference generated by the uplink transmission sent by the terminal exceeds the interference suppression capability of the terminal, the downlink reception performance of the terminal will be affected.

[0048] Based on the above problems, the present application proposes a power adjustment solution, which can reduce the impact of self-interference when the terminal works in full-duplex (such as flexible SBFD) mode, thereby ensuring the receiving performance of downlink transmission.

[0049] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0050] The power adjustment method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0051] Figure 4 is a schematic flow chart of a power adjustment method 200 according to an embodiment of the present application, such as Figure 4 As shown, the power adjustment method 200 may include at least part of the following contents:

[0052] S210, the network side device sends power backoff information of uplink transmission to the terminal, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range;

[0053] S220, the terminal receives power backoff information of the uplink transmission from the network side device;

[0054] S230: When the terminal operates in full-duplex mode, the terminal determines a power backoff value or a transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission.

[0055] It should be understood that Figure 4 The steps or operations of the power adjustment method 200 are shown, but these steps or operations are only examples. The embodiment of the present application may also perform other operations or Figure 4 Variations of the various operations in .

[0056] In an embodiment of the present application, when the terminal operates in full-duplex mode, the terminal can determine the power backoff value or transmit power corresponding to the uplink transmission on the first time unit based on the power backoff information of the uplink transmission obtained from the network side device, thereby reducing the impact of self-interference on the downlink reception of the terminal and ensuring the downlink reception performance of the terminal.

[0057] The "power backoff" described in the embodiments of the present application may also be referred to as "power adjustment" or "power scaling", or similar names, and the present application is not limited to this.

[0058] In some embodiments, the power backoff information of the uplink transmission may also be agreed upon by a protocol, or the power backoff information of the uplink transmission may be determined based on a capability report of the terminal.

[0059] Specifically, in the above S230, the terminal determines the transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission, which may be:

[0060] The terminal adjusts the original transmission power of the uplink transmission in the first time unit according to the power backoff information of the uplink transmission to obtain the transmission power.

[0061] It should be noted that in an embodiment of the present application, the terminal is configured with relevant information of the full-duplex (such as SBFD) mode (for example, SBFD resources are configured), but the terminal can sometimes work in half-duplex mode and sometimes in full-duplex mode, depending on the scheduling of the network or the terminal's own implementation (such as being affected by self-interference).

[0062] Exemplarily, the power backoff information of the uplink transmission includes a first power backoff value. In this case, when the terminal operates in full-duplex mode, the terminal can determine the power backoff value or transmit power corresponding to the uplink transmission on the first time unit based on the first power backoff value. For example, the first power backoff value can be determined as the power backoff value corresponding to the uplink transmission on the first time unit. For another example, the difference or sum of the first power backoff value and a preset power offset value can be determined as the power backoff value corresponding to the uplink transmission on the first time unit. It should be noted that the introduction of a preset power offset value can increase the flexibility in the implementation of power backoff.

[0063] Exemplarily, the power backoff information of the uplink transmission includes a power backoff value set. In this case, when the terminal operates in full-duplex mode, the terminal can determine the power backoff value corresponding to the uplink transmission on the first time unit from the power backoff value set, and the terminal can determine the transmit power corresponding to the uplink transmission on the first time unit based on the power backoff value corresponding to the uplink transmission on the first time unit determined from the power backoff value set.

[0064] Exemplarily, the power backoff information of the uplink transmission includes a power backoff range. In this case, when the terminal operates in full-duplex mode, the terminal can determine the power backoff value corresponding to the uplink transmission on the first time unit from the power backoff range, and the terminal can determine the transmit power corresponding to the uplink transmission on the first time unit based on the power backoff value corresponding to the uplink transmission on the first time unit determined from the power backoff range.

[0065] Exemplarily, the power backoff information of uplink transmission includes a power backoff value set and a power backoff range. In this case, when the terminal operates in full-duplex mode, the terminal can select a power backoff value in the power backoff range from the power backoff value set as the power backoff value corresponding to the uplink transmission in the first time unit.

[0066] In some embodiments, the power backoff range includes at least one of:

[0067] The maximum value of power backoff, for example, 0dB, 1dB, 3dB, 6dB, etc.

[0068] The minimum value of power backoff, for example, 0dB, 1dB, 3dB, etc. (The minimum value of power backoff refers to the minimum power that needs to be backed off to meet full-duplex uplink transmission);

[0069] The minimum and maximum values ​​of power backoff, such as 0-6dB or 1-3dB;

[0070] The maximum uplink transmit power in full-duplex mode (equivalent to defining how much power must be backed off at least to meet full-duplex uplink transmission requirements).

[0071] Exemplarily, if the power backoff value determined by the terminal satisfies the maximum value in the power backoff value set configured by the network, uplink transmission is performed; if it does not meet the maximum value (the power backoff exceeds the maximum value in the power backoff value set), uplink transmission is not performed. Specifically, the terminal can determine the size of the power backoff value based on the first information (see the following description for details), and the power backoff value may or may not belong to the power backoff value set configured by the network.

[0072] Exemplarily, if the transmit power after power backoff determined by the terminal satisfies the maximum value in the power backoff value set configured by the network, uplink transmission is performed; if it does not meet the maximum value (the power backoff exceeds the maximum value in the power backoff value set), uplink transmission is not performed. Specifically, the terminal determines the size of the power backoff value based on the first information (see the following description for details), and the power backoff value may or may not belong to the power backoff value set configured by the network.

[0073] In some embodiments, the uplink transmission described in the embodiments of the present application may include but is not limited to at least one of the following:

[0074] Physical Uplink Control Channel (PUCCH), dynamically scheduled or semi-statically configured Physical Uplink Shared Channel (PUSCH), periodic or aperiodic Sounding Reference Signal (SRS), Physical Random Access Channel (PRACH).

[0075] In some embodiments, the downlink transmission described in the embodiments of the present application may include but is not limited to at least one of the following:

[0076] Physical Downlink Control Channel (PDCCH), such as PDCCH in UE specific search space (USS) or Type 3 common search space (CSS);

[0077] Dynamically scheduled or semi-statically configured physical downlink shared channel (PDSCH), such as non-fall back downlink control information (DCI) scheduled PDSCH, semi-persistent scheduling (SPS) PDSCH, low priority PDSCH, etc.

[0078] Periodic or aperiodic channel state information reference signal (CSI-RS);

[0079] Synchronization Signal Block (SSB);

[0080] Low power wake-up signal (LP-WUS).

[0081] In some embodiments, the power backoff information of uplink transmission may be configuration information of uplink transmission granularity, that is, different uplink transmissions may correspond to different power backoff information; or, the power backoff information of uplink transmission may be configuration information of time domain granularity, that is, uplink transmissions of different time periods or cycles may correspond to different power backoff information; or, the power backoff information of uplink transmission may be configuration information of frequency domain granularity, that is, uplink transmissions of different frequency bands may correspond to different power backoff information; or, the power backoff information of uplink transmission may be configuration information of terminal granularity, that is, uplink transmissions of different terminals may correspond to different power backoff information; or, the power backoff information of uplink transmission may be configuration information of terminal group granularity, that is, uplink transmissions of different terminal groups may correspond to different power backoff information; or, the power backoff information of uplink transmission may be configuration information of cell granularity, that is, uplink transmissions of different cells may correspond to different power backoff information.

[0082] In some embodiments, the unit of the first time unit is one of the following: symbol, time slot, micro-time slot, mini-time slot, subframe; or the unit of the first time unit is one of the following: microsecond, millisecond, second, minute. Thus, based on the embodiments of the present application, the power backoff value or transmit power corresponding to the uplink transmission of multiple granularities can be determined.

[0083] In some embodiments, the power backoff value corresponding to the uplink transmission on the first time unit may be associated with at least one of the following (that is, the power backoff value corresponding to the uplink transmission on the first time unit may be determined based on at least one of the following, and the accuracy of the power backoff value corresponding to the uplink transmission on the determined first time unit may be improved):

[0084] a signal type or channel type of uplink transmission in the first time unit;

[0085] Information carried by an uplink transmission in a first time unit;

[0086] a type of downlink transmission in the first time unit;

[0087] Spatial characteristics of uplink transmission in the first time unit.

[0088] For example, the terminal determines different power backoff values ​​for different uplink signals or uplink channels, or the network side device can configure different first power backoff values ​​for different uplink signals or uplink channels, such as PUSCH backoff X1 dB, PUCCH backoff X2 dB, PRACH backoff X3 dB, SRS backoff X4 dB.

[0089] For example, when the power backoff information of uplink transmission includes a power backoff value set or a power backoff range, the terminal determines different power backoff values ​​when carrying different information for the uplink channel. For example, the PUCCH carrying the Hybrid Automatic Repeat request Acknowledgement (HARQ-ACK) backs off by Y1 dB, and the PUSCH carrying high priority data backs off by Y2 dB.

[0090] For example, when the power backoff information of the uplink transmission includes a power backoff value set or a power backoff range, the terminal determines different uplink power backoff values ​​for different downlink transmissions performed simultaneously with the uplink transmission. For example, the uplink power backoff value is Z1 dB when receiving SSB, and the uplink power backoff value is Z2 dB when receiving PDSCH.

[0091] For example, when the power backoff information of the uplink transmission includes a power backoff value set or a power backoff range, the terminal determines different power backoff values ​​for different spatial characteristics of the uplink transmission. For example, when the uplink transmission can have at least two spatial characteristics, different power backoff values ​​can be determined for different spatial characteristics.

[0092] In some embodiments, when the power backoff information of the uplink transmission includes the first power backoff value, independent first power backoff values ​​are used for at least two different uplink transmissions or downlink transmissions. That is, the network side device configures different first power backoff values ​​for different uplink transmissions or downlink transmissions.

[0093] Exemplarily, the network side device may configure different first power backoff values ​​for different uplink signals or uplink channels. Optionally, different uplink signals or uplink channels may include: PRACH in the primary cell (Pcell), high-priority PUCCH or PUSCH, low-priority PUCCH or PUSCH, and periodic or non-periodic SRS. For example, the network side device configures a first power backoff value of X1 dB for PUSCH, a first power backoff value of X2 dB for PUCCH, a first power backoff value of X3 dB for PRACH, and a first power backoff value of X4 dB for SRS.

[0094] Exemplarily, the network side device may configure different first power backoff values ​​when the uplink channel carries different information. Optionally, the uplink channels carrying different information may include: PUCCH carrying HARQ-ACK or PUCCH carrying Scheduling Request (SR) or PUCCH carrying Link Recovery Request (LRR) or PUSCH carrying HARQ-ACK, PUCCH or PUSCH carrying CSI, PUSCH carrying data only. For example, the network side device configures a first power backoff value of Y1 dB for the PUCCH carrying HARQ-ACK, and configures a first power backoff value of Y2 dB for the PUSCH carrying high priority data, etc.

[0095] Exemplarily, the network side device may configure different first power backoff values ​​for different downlink transmissions performed simultaneously with the uplink transmission. Specifically, for example, the network side device configures the uplink power backoff value of the uplink transmission performed simultaneously when receiving the SSB to Z1 dB, and the network side device configures the uplink power backoff value of the uplink transmission performed simultaneously when receiving the PDSCH to Z2 dB, etc.

[0096] Exemplarily, the network side device may configure different first power backoff values ​​for different spatial characteristics (spatial relationship info). For example, when uplink transmission may have at least two spatial characteristics, the network side device may configure different first power backoff values ​​for different spatial characteristics.

[0097] In some embodiments, when the power backoff information of the uplink transmission includes a power backoff value set or a power backoff range, the above S230 may specifically include:

[0098] The terminal determines, according to the first information, a power backoff value or a transmit power corresponding to the uplink transmission on the first time unit from at least one of the power backoff value set and the power backoff range;

[0099] Among them, the first information includes but is not limited to at least one of the following: self-interference evaluation results, the frequency domain interval between the downlink transmission and the uplink transmission on the first time unit, the bandwidth of the uplink transmission on the first time unit, the transmission power of the uplink transmission on the first time unit determined based on the uplink power control, the interference suppression capability of the terminal, and the spatial characteristics of the uplink transmission on the first time unit.

[0100] Specifically, in this embodiment, in the process of determining the power backoff value or transmission power corresponding to the uplink transmission on the first time unit, referring to the first information can improve the accuracy of the power backoff value or transmission power corresponding to the uplink transmission on the first time unit.

[0101] Specifically, the power fallback value Power corresponding to the uplink transmission in the first time unit back-off It can be determined based on the following formula 1, and the transmission power P corresponding to the uplink transmission in the first time unit Tx It can be determined based on the following formula 2.

[0102] Power back-off =f(SI est ,N DL-UL-gap ,N UL-bw ,P UL-PC,Tx ,α SI ,SS,…) Formula 1

[0103] P Tx =g(SI est ,N DL-UL-gap ,N UL-bw ,P UL-PC,Tx ,α SI ,SS,…) Formula 2

[0104] Among them, SI est Represents the self-interference evaluation result, N DL-UL-gap represents the frequency domain interval between downlink transmission and uplink transmission in the first time unit, N UL-bw represents the bandwidth of the uplink transmission in the first time unit, P UL-PC,Tx represents the transmit power of the uplink transmission in the first time unit determined based on the uplink power control, α SI represents the interference suppression capability of the terminal, and SS represents the spatial characteristics of uplink transmission in the first time unit.

[0105] Exemplarily, in the case where the power backoff information of the uplink transmission includes a power backoff value set, the terminal determines the power backoff value or the transmit power of the uplink transmission on the first time unit from the power backoff value set according to the first information. For example, the network side device configures a power backoff value set, which includes at least two power backoff values ​​{X1, X2, X3, X4...}, and the terminal determines the power backoff value of the uplink transmission on the first time unit from the at least two power backoff values ​​{X1, X2, X3, X4...} according to the first information.

[0106] Exemplarily, when the power backoff information of the uplink transmission includes a power backoff range, the terminal determines the power backoff value or the transmit power of the uplink transmission in the first time unit from the power backoff range according to the first information. For example, the network side device configures the power backoff range, such as X min ~X max The terminal determines a power backoff value for uplink transmission on a first time unit from a power backoff range according to the first information.

[0107] Exemplarily, when the power backoff information of the uplink transmission includes a power backoff value set and a power backoff range, the terminal determines the power backoff value or the transmit power of the uplink transmission on the first time unit from the power backoff value set and the power backoff range according to the first information. Specifically, the terminal determines the power backoff value or the transmit power of the uplink transmission on the first time unit from the power backoff value set according to the first information, and the determined power backoff value of the uplink transmission on the first time unit needs to be within the power backoff range.

[0108] In some embodiments, before the terminal determines the power backoff value or transmit power corresponding to the uplink transmission on the first time unit from at least one of the power backoff value set and the power backoff range, the terminal evaluates the self-interference strength to obtain a self-interference evaluation result. Optionally, the self-interference evaluation method includes: measuring the received signal strength indication (RSSI), the layer 1 signal to interference plus noise ratio (L1-SINR), the channel state information (CSI), etc.

[0109] In some embodiments, the terminal may evaluate and train the self-interference level (such as through a network model), and obtain a self-interference evaluation result based on the evaluation training result. Specifically, the self-interference level under different situations (the specific situation is pre-indicated by the network or determined by the terminal) may be trained, and the self-interference evaluation training result may be stored in the terminal locally in an offline manner, or the self-interference evaluation training result may be reported to the network side device so that the network side device can know the self-interference level of the terminal under different situations.

[0110] Exemplarily, self-interference assessment training can be performed when the terminal accesses the network. The self-interference assessment training can be performed once in a long period of time to avoid performance loss of the terminal due to frequent self-interference assessment training. The embodiments of the present application do not limit the specific self-interference assessment training method.

[0111] In some embodiments, the terminal may dynamically evaluate the self-interference level to obtain a self-interference evaluation result. For example, the terminal evaluates the self-interference level according to the actual downlink transmission and uplink transmission conditions in the first time unit to obtain a self-interference evaluation result. Optionally, the terminal may report the dynamically evaluated self-interference evaluation result to the network. In this case, the terminal is required to have a strong processing capability.

[0112] In some embodiments, the above S230 may specifically include:

[0113] The terminal may determine the power backoff value or transmit power corresponding to the uplink transmission in the first time unit according to the power backoff evaluation training result.

[0114] Specifically, the terminal can evaluate and train the power backoff value (such as through a network model), and determine the power backoff value or transmit power corresponding to the uplink transmission on the first time unit based on the evaluation training result. Specifically, the power backoff value under different situations (the specific situation is pre-indicated by the network or determined by the terminal) can be trained, and the power backoff evaluation training result can be stored locally in the terminal in an offline manner, or the power backoff evaluation training result can be reported to the network side device so that the network side device can know the power backoff value of the terminal under different situations.

[0115] Exemplarily, power backoff assessment training may be performed when the terminal accesses the network. The power backoff assessment training may be performed once in a relatively long period of time. The embodiments of the present application do not limit the specific power backoff assessment training method.

[0116] In some embodiments, the terminal refers to at least one of the following during the power backoff evaluation training process:

[0117] Self-interference level SI est ,Wherein, the self-interference evaluation methods include measuring RSSI, L1-SINR, CSI, etc.;

[0118] The frequency domain interval N between downlink transmission and uplink transmission DL-UL-gap ;

[0119] Uplink transmission bandwidth N UL-bw ;

[0120] The uplink transmission power P determined based on the uplink power control UL-PC,Tx ;

[0121] Interference suppression capability of the terminal α SI ;

[0122] Spatial characteristics of uplink transmission.

[0123] Specifically, the terminal refers to at least one of the following during the power backoff evaluation training process: self-interference level SI est , the frequency domain interval between downlink transmission and uplink transmission is N DL-UL-gap , the bandwidth of uplink transmission is N UL-bw , based on the uplink transmission power P determined by the uplink power control UL-PC,Tx , the interference suppression capability of the terminal α SI , the spatial characteristics of uplink transmission; thereby, improving the evaluation training accuracy of power backoff.

[0124] In some embodiments, the above S230 may specifically include:

[0125] The terminal may dynamically determine a power backoff value or a transmit power corresponding to the uplink transmission in the first time unit according to the uplink transmission situation or the downlink transmission situation in the first time unit.

[0126] Exemplarily, the terminal may report the power backoff value or the transmit power corresponding to the uplink transmission in the first time unit determined dynamically to the network. In this case, the terminal is required to have a strong processing capability.

[0127] In some embodiments, the terminal does not send an uplink transmission on the first time unit (in other words, the terminal does not perform an uplink transmission on the first time unit, or the terminal abandons or ignores the uplink transmission on the first time unit) when at least one of the following is satisfied:

[0128] The power backoff value corresponding to the uplink transmission in the first time unit is greater than or equal to the first preset value;

[0129] The transmission power corresponding to the uplink transmission in the first time unit is less than or equal to the second preset value.

[0130] That is, in this embodiment, the transmit power after power backoff should not be too small, and it is necessary to ensure normal uplink transmission while reducing the impact of self-interference on downlink transmission.

[0131] For example, if the power backoff value corresponding to the uplink transmission on the first time unit is greater than or equal to the first preset value, the uplink transmission on the first time unit is not sent; if the power backoff value corresponding to the uplink transmission on the first time unit is less than the first preset value, the terminal uses the transmit power after power backoff to perform the uplink transmission on the first time unit. Specifically, in this embodiment, the power backoff value should not be too large, that is, the transmit power after power backoff should not be too small, and it is necessary to reduce the impact of self-interference on downlink transmission while ensuring normal uplink transmission.

[0132] For example, if the transmission power corresponding to the uplink transmission on the first time unit is less than or equal to the second preset value, the uplink transmission on the first time unit is not sent; if the transmission power corresponding to the uplink transmission on the first time unit is greater than the second preset value, the terminal uses the transmission power after power backoff to perform the uplink transmission on the first time unit. Specifically, in this embodiment, the transmission power after power backoff should not be too small, and it is necessary to ensure that the uplink transmission is carried out normally while reducing the impact of self-interference on the downlink transmission.

[0133] For example, if the power backoff value corresponding to the uplink transmission on the first time unit is greater than or equal to the first preset value, and the transmit power corresponding to the uplink transmission on the first time unit is less than or equal to the second preset value, the uplink transmission on the first time unit is not sent; if the power backoff value corresponding to the uplink transmission on the first time unit is greater than or equal to the first preset value, and the transmit power corresponding to the uplink transmission on the first time unit is greater than the second preset value, the terminal uses the transmit power after power backoff to perform the uplink transmission on the first time unit; if the power backoff value corresponding to the uplink transmission on the first time unit is less than the first preset value, and the transmit power corresponding to the uplink transmission on the first time unit is less than or equal to the second preset value, the uplink transmission on the first time unit is not sent; if the power backoff value corresponding to the uplink transmission on the first time unit is less than the first preset value, and the transmit power corresponding to the uplink transmission on the first time unit is greater than the second preset value, the terminal uses the transmit power after power backoff to perform the uplink transmission on the first time unit. Specifically, in this embodiment, the transmit power after power backoff should not be too small, and it is necessary to reduce the impact of self-interference on downlink transmission while ensuring normal uplink transmission.

[0134] Exemplarily, the first preset value is determined by a protocol agreement or by a network-side device configuration or by a terminal capability report.

[0135] Exemplarily, the second preset value is determined by a protocol agreement or by a network-side device configuration or by a terminal capability report.

[0136] In some embodiments, the first preset value may be a value in a power backoff set or a value in a power backoff range. For example, the maximum value in the power backoff set or the power backoff range is the first preset value.

[0137] In some embodiments, the power backoff information of the uplink transmission includes a power backoff range, wherein the power backoff range includes a maximum value of the power backoff. Specifically, if the power backoff value corresponding to the uplink transmission on the first time unit determined by the terminal meets the maximum value of the power backoff configured by the network, the uplink transmission on the first time unit is performed; if it does not meet the maximum value (i.e., the power backoff exceeds the maximum value of the power backoff configured by the network), the uplink transmission on the first time unit is not performed. Specifically, the terminal can determine the power backoff value corresponding to the uplink transmission on the first time unit based on the first information (see the above description for details), and the power backoff may meet or not meet the maximum value of the power backoff configured by the network.

[0138] In some embodiments, the power backoff information of the uplink transmission includes a power backoff range, wherein the power backoff range includes a minimum value and a maximum value of the power backoff. Specifically, if the power backoff value corresponding to the uplink transmission on the first time unit determined by the terminal meets the minimum value and the maximum value of the power backoff configured by the network, the uplink transmission on the first time unit is performed; if it is not satisfied (the power backoff exceeds the maximum value of the power backoff configured by the network or is lower than the minimum value of the power backoff configured by the network), the uplink transmission on the first time unit is not performed. Specifically, the terminal can determine the power backoff value corresponding to the uplink transmission on the first time unit based on the first information (see the above description for details), and the power backoff may or may not meet the minimum value and the maximum value of the power backoff configured by the network.

[0139] In some embodiments, the power backoff information of the uplink transmission includes a power backoff range, wherein the power backoff range includes the uplink maximum transmit power of the full-duplex mode, and if the uplink transmit power obtained by the terminal based on the uplink power control exceeds the uplink maximum transmit power of the full-duplex mode configured by the network, the terminal performs power backoff. Specifically, the terminal can determine the power backoff value corresponding to the uplink transmission on the first time unit based on the first information (see the above description for details), wherein the size of the power backoff is to make the final transmit power of the terminal conform to the uplink maximum transmit power of the full-duplex mode configured by the network.

[0140] In some embodiments, the power backoff information of the uplink transmission includes a power backoff range, wherein the power backoff range includes the uplink maximum transmit power in full-duplex mode and the maximum value of the power backoff. If the uplink transmit power obtained by the terminal based on the uplink power control exceeds the uplink maximum transmit power in full-duplex mode configured by the network, the terminal performs power backoff. Specifically, if the transmit power meets the maximum power backoff value configured by the network, uplink transmission is performed; if it does not meet the maximum power backoff value configured by the network, uplink transmission is not performed. Specifically, the terminal determines the power backoff value corresponding to the uplink transmission on the first time unit based on the first information (see the previous description for details), wherein the power backoff may meet or not meet the maximum power backoff value configured by the network.

[0141] In some embodiments, in the above S230, the terminal determines, according to the power backoff information of the uplink transmission, that the power backoff value or the transmit power corresponding to the uplink transmission in the first time unit is triggered by at least one of the following:

[0142] An instruction from a network-side device is received, and the power fallback condition is met.

[0143] Exemplarily, the network side device may indicate whether to enable the power backoff mechanism. Specifically, when the network side device indicates to enable the power backoff mechanism, the terminal determines the power backoff value or transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission.

[0144] Exemplarily, the power backoff mechanism is enabled when the power backoff condition is met, that is, the terminal determines the power backoff value or transmit power corresponding to the uplink transmission on the first time unit according to the power backoff information of the uplink transmission.

[0145] In some embodiments, the power back-off condition includes but is not limited to at least one of the following:

[0146] The self-interference evaluation result is greater than or equal to the first threshold, the frequency domain interval between the downlink transmission and the uplink transmission is less than or equal to the second threshold, the bandwidth of the uplink transmission is greater than or equal to the third threshold, the transmit power of the uplink transmission determined based on the uplink power control is greater than or equal to the fourth threshold, the spatial characteristics of the uplink transmission are the same as the spatial characteristics of the downlink transmission, and the spatial characteristics of the uplink transmission and the spatial characteristics of the downlink transmission correspond to the same transmission configuration indication (Transmission Configuration Indicator, TCI) or quasi-co-located (Quasi-co-located, QCL) resources.

[0147] It should be understood that the uplink transmission, downlink transmission and transmit power involved in the power backoff conditions are all general terms.

[0148] In some embodiments, the power backoff condition is agreed upon by a protocol, or the power backoff condition is configured by a network-side device.

[0149] Exemplarily, the first threshold is determined by a protocol agreement or by a network-side device configuration or by a terminal capability report.

[0150] Exemplarily, the second threshold is determined by a protocol agreement or by a network-side device configuration or by a terminal capability report.

[0151] Exemplarily, the third threshold is determined by a protocol agreement or by a network-side device configuration or by a terminal capability report.

[0152] Exemplarily, the fourth threshold is determined by a protocol agreement or by a network-side device configuration or by a terminal capability report.

[0153] In some embodiments, the network side device sends first indication information to the terminal;

[0154] The first indication information is used to indicate whether to enable the power backoff mechanism, or the first indication information is used to indicate the power backoff condition;

[0155] Wherein, the power backoff mechanism is enabled when the power backoff condition is met.

[0156] In some embodiments, the first indication information may be carried by one of the following: downlink control information (Downlink Control Information, DCI), radio resource control (Radio Resource Control, RRC) signaling, and media access control layer control element (Media Access Control Control Element, MAC CE).

[0157] In some embodiments, the power backoff value or transmit power corresponding to the uplink transmission on the first time unit is applicable to the most recent uplink transmission after the first time unit, or the power backoff value or transmit power corresponding to the uplink transmission on the first time unit is applicable to the uplink transmission within the first time period after the first time unit. Thus, the frequency of determining the power backoff value or transmit power corresponding to the uplink transmission can be reduced, thereby reducing the power consumption of the terminal.

[0158] That is, if the power backoff mechanism is enabled, the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the next uplink transmission, or, the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the uplink transmission within the next period of time (the time length is network configuration or protocol agreement).

[0159] In some embodiments, the downlink transmission concurrent with the uplink transmission applicable when the power back-off mechanism is enabled is specified by the protocol, or the downlink transmission concurrent with the uplink transmission applicable when the power back-off mechanism is enabled is pre-configured by the network side device. For example, uplink power back-off is enabled when receiving SSB or CSI-RS, and uplink power back-off is not enabled when receiving PDCCH or PDSCH. That is, the network configures the power back-off information for the uplink transmission. When receiving reference signals such as SSB or CSI-RS, the power adjustment of the uplink transmission is based on the power back-off information of the uplink transmission configured by the network; if receiving PDSCH or PDSCH, the power back-off information of the uplink transmission configured by the network can be ignored.

[0160] In some embodiments, the uplink signal or uplink channel applicable when the power back-off mechanism is enabled is specified by the protocol, or the uplink signal or uplink channel applicable when the power back-off mechanism is enabled is pre-configured by the network side device. For example, when the power back-off mechanism is enabled, it is only applicable to PUSCH or PUCCH, and not applicable to PRACH or SRS.

[0161] In some embodiments, if the terminal enables the cumulative power calculation method of closed-loop power control, after power back-off, the power cumulative value of the closed-loop power control remains unchanged or is reset.

[0162] Therefore, in the embodiments of the present application, when the terminal operates in the full-duplex mode, the terminal can determine the power back-off value or transmit power corresponding to the uplink transmission in the first time unit according to the power back-off information of the uplink transmission obtained from the network side device, thereby reducing the impact of self-interference on the downlink reception of the terminal and ensuring the downlink reception performance of the terminal.

[0163] The technical solution of the present application is described below through Embodiment 1 and Embodiment 2.

[0164] Embodiment 1

[0165] The network side device configures a set of power back-off values, including at least two power back-off values {-10, -6, -3, -1}. The terminal can select the power back-off value for the uplink transmission in slot n according to the transmit power of the uplink transmission determined based on the uplink power control and the self-interference evaluation result.

[0166] Before this, the self-interference RSSI results measured by the terminal are as follows:

[0167] The transmit power of the uplink transmission determined based on the uplink power control is P1, and the RSSI is A1;

[0168] The transmit power of the uplink transmission determined based on the uplink power control is P2 (P1 < P2), and the RSSI is A2 (A2 > A1).

[0169] Specifically, when the transmit power of the uplink transmission determined by the terminal based on uplink power control in slot n is Pn, at this time, it is necessary to ensure the reception of the downlink transmission (for example, ensure that the self-interference RSSI is lower than a predefined threshold), and the terminal needs to perform power backoff. The terminal selects an appropriate power backoff value from the set of power backoff values configured by the network device according to the transmit power Pn and the self-interference evaluation result, so as to reduce the magnitude of self-interference on slot n. Optionally, if the power backoff value corresponding to the uplink transmission on slot n is greater than or equal to the first preset value, or the transmit power corresponding to the uplink transmission on slot n is less than or equal to the second preset value, then the uplink transmission on slot n is not sent; otherwise, the terminal uses the transmit power after power backoff to perform the uplink transmission on slot n.

[0170] Embodiment 2

[0171] The network device configures a power backoff range (for example, P_min_backoff and P_max_backoff), and the terminal can determine the power backoff value of the uplink transmission on slot n or the actual transmit power after power backoff from the power backoff range according to the frequency-domain interval N between the downlink transmission and the uplink transmission on slot n DL-UL-gap and the self-interference evaluation result.

[0172] Before this, the self-interference RSSI results measured by the terminal are as follows

[0173] N DL-UL-gap When it is Ngap1, the RSSI is A1;

[0174] N DL-UL-gap When it is Ngap2 (Ngap2 > Ngap1), the RSSI is A2;

[0175] Specifically, when the frequency-domain interval N between the downlink transmission and the uplink transmission determined by the terminal according to the network indication in slot n DL-UL-gap is Ngap3 (Ngap3 < Ngap1), at this time, it is necessary to ensure the reception of the downlink transmission, and the terminal performs power backoff. The terminal determines the power backoff value from the power backoff range configured by the network device according to the level of self-interference, and reduces the transmit power to reduce the magnitude of self-interference. Optionally, if the power backoff value corresponding to the uplink transmission on slot n is greater than or equal to the first preset value, or the transmit power corresponding to the uplink transmission on slot n is less than or equal to the second preset value, then the uplink transmission on slot n is not sent; otherwise, the terminal uses the transmit power after power backoff to perform the uplink transmission on slot n.

[0176] The power adjustment method provided in the embodiment of the present application can be executed by a power adjustment device or a processing unit in the power adjustment device for executing the power adjustment method. In the embodiment of the present application, the power adjustment device provided in the embodiment of the present application is described by taking the power adjustment device executing the power adjustment method as an example.

[0177] Figure 5 FIG. 4 shows a schematic block diagram of a power adjustment device 300 according to an embodiment of the present application. Figure 5 As shown, the power adjustment device 300 includes:

[0178] The transceiver unit 310 is configured to receive power backoff information of uplink transmission from a network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range;

[0179] The processing unit 320 is configured to determine, when the terminal operates in full-duplex mode, a power backoff value or a transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission.

[0180] In some embodiments, the power backoff value corresponding to the uplink transmission in the first time unit is associated with at least one of the following:

[0181] a signal type or a channel type of the uplink transmission in the first time unit;

[0182] Information carried by the uplink transmission in the first time unit;

[0183] a type of downlink transmission in the first time unit;

[0184] The spatial characteristics of the uplink transmission in the first time unit.

[0185] In some embodiments, when the power backoff information of the uplink transmission includes the first power backoff value, independent power backoff values ​​are used for at least two different uplink transmissions or downlink transmissions.

[0186] In some embodiments, when the power backoff information of the uplink transmission includes the power backoff value set or the power backoff range, the processing unit 320 is specifically configured to:

[0187] Determine, according to the first information, a power backoff value or a transmit power corresponding to the uplink transmission on the first time unit from at least one of the power backoff value set and the power backoff range;

[0188] Among them, the first information includes at least one of the following: a self-interference assessment result, a frequency domain interval between downlink transmission and uplink transmission on the first time unit, a bandwidth of uplink transmission on the first time unit, a transmit power of uplink transmission on the first time unit determined based on uplink power control, the interference suppression capability of the terminal, and a spatial characteristic of uplink transmission on the first time unit.

[0189] In some embodiments, the transceiver unit 310 is further configured to not send an uplink transmission on the first time unit when at least one of the following conditions is met:

[0190] The power backoff value corresponding to the uplink transmission in the first time unit is greater than or equal to a first preset value;

[0191] The transmission power corresponding to the uplink transmission in the first time unit is less than or equal to a second preset value.

[0192] In some embodiments, the terminal determines, according to the power backoff information of the uplink transmission, that the power backoff value or the transmit power corresponding to the uplink transmission on the first time unit is triggered by at least one of the following:

[0193] An instruction from the network side device is received, and a power fallback condition is met.

[0194] In some embodiments, the power backoff condition includes at least one of the following:

[0195] The self-interference assessment result is greater than or equal to the first threshold, the frequency domain interval between the downlink transmission and the uplink transmission is less than or equal to the second threshold, the bandwidth of the uplink transmission is greater than or equal to the third threshold, the transmission power of the uplink transmission determined based on the uplink power control is greater than or equal to the fourth threshold, the spatial characteristics of the uplink transmission are the same as the spatial characteristics of the downlink transmission, and the spatial characteristics of the uplink transmission and the spatial characteristics of the downlink transmission correspond to the same transmission configuration indication TCI or quasi-co-site QCL resources.

[0196] In some embodiments, the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the most recent uplink transmission after the first time unit, or the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the uplink transmission within a first time period after the first time unit.

[0197] In some embodiments, the transceiver unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0198] It should be understood that the power adjustment device 300 according to the embodiment of the present application may correspond to the terminal in the method embodiment of the present application, and the above and other operations or functions of each unit in the power adjustment device 300 are respectively to achieve Figure 4 For the sake of brevity, the corresponding process of the terminal in the method 200 is not repeated here.

[0199] Figure 6 FIG. 4 is a schematic block diagram of a power adjustment device 400 according to an embodiment of the present application. Figure 6 As shown, the power adjustment device 400 includes:

[0200] The transceiver unit 410 is used to send power backoff information of uplink transmission to the terminal, wherein the power backoff information of the uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range, and the power backoff information of the uplink transmission is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit when the terminal operates in full-duplex mode.

[0201] In some embodiments, the power backoff value corresponding to the uplink transmission in the first time unit is associated with at least one of the following:

[0202] a signal type or a channel type of the uplink transmission in the first time unit;

[0203] Information carried by the uplink transmission in the first time unit;

[0204] a type of downlink transmission in the first time unit;

[0205] The spatial characteristics of the uplink transmission in the first time unit.

[0206] In some embodiments, when the power backoff information of the uplink transmission includes the first power backoff value, independent power backoff values ​​are used for at least two different uplink transmissions or downlink transmissions.

[0207] In some embodiments, the transceiver unit 410 is further configured to send first indication information to the terminal;

[0208] The first indication information is used to indicate whether to enable the power backoff mechanism, or the first indication information is used to indicate a power backoff condition;

[0209] Wherein, the power backoff mechanism is enabled when the power backoff condition is met.

[0210] In some embodiments, the power backoff condition includes at least one of the following:

[0211] The self-interference assessment result is greater than or equal to the first threshold, the frequency domain interval between the downlink transmission and the uplink transmission is less than or equal to the second threshold, the bandwidth of the uplink transmission is greater than or equal to the third threshold, the transmission power of the uplink transmission determined based on the uplink power control is greater than or equal to the fourth threshold, the spatial characteristics of the uplink transmission are the same as the spatial characteristics of the downlink transmission, and the spatial characteristics of the uplink transmission and the spatial characteristics of the downlink transmission correspond to the same transmission configuration indication TCI or quasi-co-site QCL resources.

[0212] In some embodiments, the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the most recent uplink transmission after the first time unit, or the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the uplink transmission within a first time period after the first time unit.

[0213] In some embodiments, the transceiver unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0214] It should be understood that the power adjustment device 400 according to the embodiment of the present application may correspond to the network side device in the embodiment of the method of the present application, and the above and other operations and / or functions of each unit in the power adjustment device 400 are respectively to achieve Figure 4 For the sake of brevity, the corresponding processes of the network-side device in the method 200 are not repeated here.

[0215] Therefore, in an embodiment of the present application, when the terminal operates in full-duplex mode, the terminal can determine the power backoff value or transmit power corresponding to the uplink transmission on the first time unit based on the power backoff information of the uplink transmission obtained from the network side device, thereby reducing the impact of self-interference on the downlink reception of the terminal and ensuring the downlink reception performance of the terminal.

[0216] The power adjustment device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or can be other devices other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0217] The power adjustment device provided in the embodiment of the present application can achieve Figure 4 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0218] like Figure 7As shown, the embodiment of the present application further provides a communication device 500, including a processor 501 and a memory 502, and the memory 502 stores a program or instruction that can be run on the processor 501. For example, when the communication device 500 is a terminal, the program or instruction is executed by the processor 501 to implement the various steps of the above-mentioned power adjustment method embodiment, and can achieve the same technical effect. When the communication device 500 is a network side device, the program or instruction is executed by the processor 501 to implement the various steps of the above-mentioned power adjustment method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0219] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0220] The terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 606, a memory 609 and at least some of the components of a processor 610.

[0221] Those skilled in the art will appreciate that the terminal 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0222] It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes a touch panel 6071 and at least one of other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0223] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 601 can transmit the data to the processor 610 for processing; in addition, the RF unit 601 can send uplink data to the network side device. Generally, the RF unit 601 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0224] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 609 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 609 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0225] The processor 610 may include one or at least two processing units; optionally, the processor 610 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 610.

[0226] The radio frequency unit 601 is configured to receive power backoff information of uplink transmission from a network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range;

[0227] The processor 610 is configured to determine, when the terminal operates in full-duplex mode, a power backoff value or a transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission.

[0228] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0229] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 The steps of the method embodiment shown. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0230] Specifically, the embodiment of the present application also provides a network side device. Fig. 9 As shown, the network side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73, a processor 74 and a memory 75. The antenna 71 is connected to the radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72. The radio frequency device 72 processes the received information and sends it out through the antenna 71.

[0231] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 73, which includes a baseband processor.

[0232] The baseband device 73 may include, for example, at least one baseband board, on which at least two chips are arranged. Fig. 9 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 75 via a bus interface to call the program in the memory 75 to execute the network device operations shown in the above method embodiment.

[0233] The network side device may further include a network interface 76, which is, for example, a Common Public Radio Interface (CPRI).

[0234] Specifically, the network side device 700 of the embodiment of the present application further includes: instructions or programs stored in the memory 75 and executable on the processor 74, and the processor 74 calls the instructions or programs in the memory 75 to execute. Figure 6 The methods executed by the units shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0235] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned power adjustment method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0236] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0237] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned power adjustment method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0238] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0239] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned power adjustment method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0240] An embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps performed by the terminal in the power adjustment method as described above, and the network side device can be used to execute the steps performed by the network side device in the power adjustment method as described above.

[0241] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0242] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0243] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A power adjustment method, characterized in that: include: The terminal receives power backoff information of uplink transmission from the network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range; In a case where the terminal operates in full-duplex mode, the terminal determines a power backoff value or a transmit power corresponding to the uplink transmission in the first time unit according to the power backoff information of the uplink transmission.

2. The method according to claim 1, characterized in that The power backoff value corresponding to the uplink transmission in the first time unit is associated with at least one of the following: a signal type or a channel type of the uplink transmission in the first time unit; Information carried by the uplink transmission in the first time unit; a type of downlink transmission in the first time unit; The spatial characteristics of the uplink transmission in the first time unit.

3. The method according to claim 1 or 2, characterized in that: In a case where the power backoff information of the uplink transmission includes the first power backoff value, independent power backoff values ​​are used for at least two different uplink transmissions or downlink transmissions.

4. The method according to claim 1 or 2, characterized in that: In a case where the power backoff information of the uplink transmission includes the power backoff value set or the power backoff range, the terminal determines, according to the power backoff information of the uplink transmission, a power backoff value or a transmit power corresponding to the uplink transmission on the first time unit, including: The terminal determines, according to the first information, a power backoff value or a transmit power corresponding to the uplink transmission on the first time unit from at least one of the power backoff value set and the power backoff range; Among them, the first information includes at least one of the following: a self-interference assessment result, a frequency domain interval between downlink transmission and uplink transmission on the first time unit, a bandwidth of uplink transmission on the first time unit, a transmit power of uplink transmission on the first time unit determined based on uplink power control, the interference suppression capability of the terminal, and a spatial characteristic of uplink transmission on the first time unit.

5. The method according to claim 4, characterized in that The method further comprises: The terminal does not send uplink transmission on the first time unit when at least one of the following is satisfied: The power backoff value corresponding to the uplink transmission in the first time unit is greater than or equal to a first preset value; The transmission power corresponding to the uplink transmission in the first time unit is less than or equal to a second preset value.

6. The method according to any one of claims 1 to 5, characterized in that The terminal determines, according to the power backoff information of the uplink transmission, a power backoff value or a transmit power corresponding to the uplink transmission on the first time unit, which is triggered by at least one of the following: An instruction from the network side device is received, and a power fallback condition is met.

7. The method according to claim 6, characterized in that The power fallback condition includes at least one of the following: The self-interference assessment result is greater than or equal to the first threshold, the frequency domain interval between the downlink transmission and the uplink transmission is less than or equal to the second threshold, the bandwidth of the uplink transmission is greater than or equal to the third threshold, the transmission power of the uplink transmission determined based on the uplink power control is greater than or equal to the fourth threshold, the spatial characteristics of the uplink transmission are the same as the spatial characteristics of the downlink transmission, and the spatial characteristics of the uplink transmission and the spatial characteristics of the downlink transmission correspond to the same transmission configuration indication TCI or quasi-co-site QCL resources.

8. The method according to any one of claims 1 to 7, characterized in that The power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the most recent uplink transmission after the first time unit, or the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the uplink transmission within the first time period after the first time unit.

9. A power adjustment method, characterized in that: include: The network side device sends power backoff information of uplink transmission to the terminal, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range. The power backoff information of uplink transmission is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit when the terminal operates in full-duplex mode.

10. The method according to claim 9, characterized in that The power backoff value corresponding to the uplink transmission in the first time unit is associated with at least one of the following: a signal type or a channel type of the uplink transmission in the first time unit; Information carried by the uplink transmission in the first time unit; a type of downlink transmission in the first time unit; The spatial characteristics of the uplink transmission in the first time unit.

11. The method according to claim 9 or 10, characterized in that: In a case where the power backoff information of the uplink transmission includes the first power backoff value, independent power backoff values ​​are used for at least two different uplink transmissions or downlink transmissions.

12. The method according to any one of claims 9 to 11, characterized in that The method further comprises: The network side device sends first indication information to the terminal; The first indication information is used to indicate whether to enable the power backoff mechanism, or the first indication information is used to indicate a power backoff condition; Wherein, the power backoff mechanism is enabled when the power backoff condition is met.

13. The method according to claim 12, characterized in that The power fallback condition includes at least one of the following: The self-interference assessment result is greater than or equal to the first threshold, the frequency domain interval between the downlink transmission and the uplink transmission is less than or equal to the second threshold, the bandwidth of the uplink transmission is greater than or equal to the third threshold, the transmission power of the uplink transmission determined based on the uplink power control is greater than or equal to the fourth threshold, the spatial characteristics of the uplink transmission are the same as the spatial characteristics of the downlink transmission, and the spatial characteristics of the uplink transmission and the spatial characteristics of the downlink transmission correspond to the same transmission configuration indication TCI or quasi-co-site QCL resources.

14. The method according to any one of claims 9 to 13, characterized in that The power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the most recent uplink transmission after the first time unit, or the power backoff value or transmission power corresponding to the uplink transmission on the first time unit is applicable to the uplink transmission within the first time period after the first time unit.

15. A power adjustment device, characterized in that: include: A transceiver unit, configured to receive power backoff information of uplink transmission from a network side device, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range; The processing unit is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit according to the power backoff information of the uplink transmission when the terminal operates in full-duplex mode.

16. A power adjustment device, characterized in that: include: A transceiver unit, used for sending power backoff information of uplink transmission to a terminal, wherein the power backoff information of uplink transmission includes at least one of the following: a first power backoff value, a power backoff value set, and a power backoff range, and the power backoff information of uplink transmission is used to determine the power backoff value or transmission power corresponding to the uplink transmission on the first time unit when the terminal operates in full-duplex mode.

17. A terminal, characterized in that: The invention comprises a transceiver, a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the power adjustment method according to any one of claims 1 to 8 are implemented.

18. A network side device, characterized in that: The method comprises a transceiver, a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the power adjustment method according to any one of claims 9 to 14 are implemented.

19. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the power adjustment method as described in any one of claims 1-8, or implements the steps of the power adjustment method as described in any one of claims 9 to 14.

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