Power control method, terminal, network device, and communication system

Abstract

The present disclosure relates to a power control method, a terminal, a network device, and a communication system. The method comprises: determining first power, wherein the first power is determined on the basis of the number of repeated transmissions, the number of repeated transmissions is the number of times that a terminal repeatedly sends first information to a target cell on the basis of a grant-free physical uplink shared channel, the first information is used for indicating that the terminal confirms handover to the target cell, and the first power is used by the terminal to send the first information to the target cell. By means of embodiments of the present disclosure, power control for the terminal to send an acknowledgement message to the target cell may be implemented during cell handover.

Description

Power control method, terminal, network equipment and communication system Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a power control method, a terminal, a network device, and a communication system. Background Art

[0002] In dynamic cell mobility management (L1 / L2-triggered mobility, LTM), to reduce handover time, it is considered to measure the timing advance (TA) information of the user to each candidate cell in advance to support cell switching without a random access procedure (RACH-less). During the RACH-less cell switch process, the terminal needs to send specific information to the target cell to access the target cell.

[0003] Summary of the Invention

[0004] In a RACH-less cell switch process, determining the power for sending specific information to a target cell is a technical problem that needs to be solved. The present disclosure proposes a power control method, a terminal, a network device, and a communication system to solve the above technical problem.

[0005] According to a first aspect of an embodiment of the present disclosure, a power control method is proposed, the method comprising: determining a first power, the first power being determined based on the number of repeated transmissions, the number of repeated transmissions being the number of times the terminal repeatedly sends first information to the target cell based on a scheduling-free physical uplink shared channel, the first information being used to indicate that the terminal confirms switching to the target cell; the first power being used for the terminal to send the first information to the target cell.

[0006] According to the second aspect of an embodiment of the present disclosure, a power control method is proposed, the method comprising: receiving first information, where the first information is sent by a terminal to a target cell based on a first power, where the first power is determined based on a number of repeated transmissions, where the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on a non-scheduled physical uplink shared channel; the first information is used to indicate that the terminal confirms switching to the target cell.

[0007] According to a third aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a processing module for determining a first power, wherein the first power is determined based on a number of repeated transmissions, wherein the number of repeated transmissions is the number of times the terminal repeatedly sends first information to a target cell based on a scheduling-free physical uplink shared channel, and the first information is used to indicate that the terminal confirms switching to the target cell; and a sending module for sending the first information to the target cell based on the first power.

[0008] According to the fourth aspect of an embodiment of the present disclosure, a network device is proposed, including: a receiving module, used to receive first information, where the first information is sent by a terminal to a target cell based on a first power, the first power is determined based on the number of repeated transmissions, and the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on a non-scheduled physical uplink shared channel; wherein the first information is used to indicate that the terminal confirms switching to the target cell.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the processor is configured to execute the power control method of the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the processor is configured to execute the power control method of the second aspect.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the power control method of the first aspect, and the network device is configured to implement the power control method of the second aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the power control method of the first aspect or the second aspect.

[0013] Through the embodiments of the present disclosure, power control for sending a confirmation message to a target cell during a cell handover process can be implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0015] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0016] FIG1B is a schematic diagram of a RACH-less cell switch process according to an embodiment of the present disclosure.

[0017] FIG2 is an interactive schematic diagram illustrating a power control method according to an embodiment of the present disclosure.

[0018] FIG3A is a schematic flow chart of a power control method according to an embodiment of the present disclosure.

[0019] FIG3B is a schematic flow chart of a power control method according to an embodiment of the present disclosure.

[0020] FIG3C is a schematic flow chart of a power control method according to an embodiment of the present disclosure.

[0021] FIG4A is a schematic flow chart of a power control method according to an embodiment of the present disclosure.

[0022] FIG4B is a schematic flow chart of a power control method according to an embodiment of the present disclosure.

[0023] FIG4C is a schematic flow chart of a power control method according to an embodiment of the present disclosure.

[0024] FIG5 is an interactive schematic diagram illustrating a power control method according to an embodiment of the present disclosure.

[0025] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure.

[0026] FIG6B is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure.

[0027] FIG7A is a schematic structural diagram of a communication device 7100 proposed in an embodiment of the present disclosure.

[0028] FIG7B is a schematic structural diagram of a chip 7200 according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] The embodiments of the present disclosure provide a power control method, a terminal, a network device, and a communication system.

[0030] In the first aspect, an embodiment of the present disclosure proposes that a terminal determines a first power, and the first power is determined based on the number of repeated transmissions, and the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on the non-scheduled physical uplink shared channel CG PUSCH, and the first information is used to indicate that the terminal confirms switching to the target cell; the first power is used for the terminal to send the first information to the target cell.

[0031] In the above embodiment, the first power is determined based on the number of repeated transmissions of the first information, and the terminal sends the first information to the target cell based on the first power. The method in the above embodiment can achieve control of transmission power, improve the success rate of cell switching of the terminal, and improve communication performance.

[0032] In combination with some embodiments of the first aspect, in some embodiments, the first power and the number of repeated transmissions satisfy the following relationship: every time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude, and the first power is less than or equal to the maximum transmission power.

[0033] In the above embodiment, as the number of repeated transmissions increases, the first power is increased to improve the success rate of retransmissions, which is beneficial to improving the reliability and performance of the communication system, reducing communication errors, and improving service quality. Controlling the first power of sending the first message to be less than or equal to the maximum transmission power can ensure that the device does not exceed a reasonable power range.

[0034] In combination with some embodiments of the first aspect, in some embodiments, the first power is determined based on the number of repeated transmissions, the power increase step size, and the power control parameter.

[0035] In the above embodiment, by determining the first power based on the number of repeated transmissions, the power boost step size, and the power control parameter, the communication system can improve resource utilization efficiency.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the power control parameter includes path loss; the path loss is determined based on a path loss reference signal, and the path loss reference signal is determined in at least one of the following ways: determined based on a first beam, wherein the first beam is used to retransmit the first information, and the path loss reference signal is a first synchronization signal block corresponding to the first beam, and the first beam is the beam selected for beam measurement of the target cell; determined based on second information, wherein the second information is used to instruct the terminal to perform cell switching and indicate the transmission configuration indication status of the target cell, and the path loss reference signal is a second synchronization signal block associated with the transmission configuration indication status.

[0037] In the above embodiment, a path loss reference signal is determined based on the first beam or the second information, and the path loss is determined based on the path loss reference signal. The communication system can better estimate the path loss, thereby accurately controlling the first power.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the number of repeated transmissions is determined based on a counter, wherein, when the initial value of the counter COUNT=0, the number of repeated transmissions NumberRetransmssion=COUNT; when the initial value of the counter COUNT=1, the numberRetransmssion=COUNT-1.

[0039] In the above embodiment, a counter is introduced to determine the number of repeated transmissions. By tracking the number of repeated transmissions, the first power can be controlled in a targeted manner, thereby optimizing the success rate of repeated transmissions.

[0040] In combination with some embodiments of the first aspect, in some embodiments, the beam used by the terminal to repeatedly send the first information to the target cell changes, and the repeated transmission counter is reset.

[0041] In the above embodiment, when a new transmission beam is used to retransmit the first information, the counter is restarted to track the number of retransmissions. This helps ensure that the value of the counter is associated with the new transmission beam, thereby better controlling the first power.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the first power is:

[0043] P=min{P c,max ,P target +α×PL+f(l)+Δ},

[0044] Among them, P target =P0+NumberRetransmission×RampingSte;

[0045] Or P = min {P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep};

[0046] Among them, P c,max is the maximum transmission power, P0 is the target received power, PL is the path loss, α is the weight factor used to adjust the path loss, Δ is other adjustment variables, f(l) is the closed-loop adjustment value, and RampingStep is the power ramp-up step size.

[0047] In the above embodiment, using the first power to send the first information to the target cell helps maintain the stability and quality of communication.

[0048] Improve the success rate of message sending.

[0049] On the second aspect, an embodiment of the present disclosure proposes that a network device receives first information, where the first information is sent by the terminal to the target cell based on a first power, and the first power is determined based on the number of repeated transmissions, and the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on the unscheduled physical uplink shared channel; the first information is used to indicate that the terminal confirms switching to the target cell.

[0050] In the above embodiment, the first power is determined based on the number of repeated transmissions of the first information, and the target cell receives the first information sent by the terminal based on the first power. The method in the above embodiment can achieve control of transmission power, improve the success rate of cell switching of the terminal, and improve communication performance.

[0051] In combination with some embodiments of the second aspect, in some embodiments, the first power and the number of repeated transmissions satisfy the following relationship: every time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude, and the first power is less than or equal to the maximum transmission power.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the first power is determined based on the number of repeated transmissions, the power increase step size, and the power control parameter.

[0053] In combination with some embodiments of the second aspect, in some embodiments, the power control parameter includes path loss; the path loss is determined based on a path loss reference signal, and the path loss reference signal is determined in at least one of the following ways: determined based on a first beam, wherein the first beam is used to retransmit the first information, and the path loss reference signal is a first synchronization signal block of a reference signal corresponding to the first beam, and the first beam is a beam selected for beam measurement of the target cell; determined based on second information, wherein the second information is used to instruct the terminal to perform cell switching and indicate the transmission configuration indication status of the target cell, and the path loss reference signal is a second synchronization signal block associated with the transmission configuration indication status.

[0054] In combination with some embodiments of the second aspect, in some embodiments, the number of repeated transmissions is determined based on a counter, wherein, when the initial value of the counter COUNT=0, the number of repeated transmissions NumberRetransmssion=COUNT; when the initial value of the counter COUNT=1, the numberRetransmssion=COUNT-1.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, the first power is:

[0056] P=min{P c,max ,P target+α×PL+f(l)+Δ},

[0057] Among them, P target =P0+NumberRetransmission×RampingSte;

[0058] Or P = min {P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep};

[0059] Among them, P c,max is the maximum transmission power, P0 is the target received power, PL is the path loss, α is the weight factor used to adjust the path loss, Δ is other adjustment variables, f(l) is the closed-loop adjustment value, and RampingStep is the power ramp-up step size.

[0060] In the third aspect, an embodiment of the present disclosure proposes a terminal, including: a processing module for determining a first power, where the first power is determined based on the number of repeated transmissions, where the number of repeated transmissions is the number of times the terminal repeatedly sends first information to the target cell based on the unscheduled physical uplink shared channel, and the first information is used to indicate that the terminal confirms switching to the target cell; and a transceiver module for sending the first information to the target cell based on the first power.

[0061] In the fourth aspect, an embodiment of the present disclosure proposes a network device, including: a transceiver module, used to receive first information, the first information is sent by the terminal to the target cell based on a first power, the first power is determined based on the number of repeated transmissions, and the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on the unscheduled physical uplink shared channel; wherein, the first information is used to indicate that the terminal confirms switching to the target cell.

[0062] In a fifth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the processor is used to execute the power control method of the first aspect.

[0063] In a sixth aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the processor is used to execute the power control method of the second aspect.

[0064] In a seventh aspect, an embodiment of the present disclosure proposes a communication system, comprising: a terminal and a network device, wherein the terminal is configured to implement the power control method of the first aspect, and the network device is configured to implement the power control method of the second aspect.

[0065] In a ninth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when the instructions are executed on a communication device, enables the communication device to execute the power control method of any one of the first and second aspects.

[0066] It is understandable that the above-mentioned terminal, access network device, first network element, second network element, core network device, communication system, storage medium, program product, computer program, chip or chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0067] The present disclosure provides a power control method, terminal, network device, and communication system. In some embodiments, the terms "power control method" and "information processing method" and "communication method" are interchangeable; the terms "power control device" and "information processing device" and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0068] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0069] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0070] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0071] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0072] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0073] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0074] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0075] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0076] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0077] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0078] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0079] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0080] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0081] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0082] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0083] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0084] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0085] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0086] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0087] FIG1A is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1A , a communication system 100 includes a terminal 101 and a network device 102 .

[0088] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0089] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0090] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0091] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0092] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0093] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the first network element 1031, the second network element 1032, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0094] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0095] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0096] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0097] Figure 1B is a schematic diagram of a RACH-less cell switch process according to an embodiment of the present disclosure. Refer to Figure 1B for terminal pre-configuration information. The terminal reports an L1 measurement report (also known as a beam measurement result) to the source cell (which can also be understood as the serving cell before the switch). The source cell decides whether to perform a cell switch based on the L1 measurement report / according to each beam measurement result. In the case of determining to perform a cell switch, the target cell (target cell) for cell switching is selected from the candidate cells. The source cell sends a cell switch signaling (cell switch command) to the terminal. After receiving the cell switch command, the terminal does not access the target cell through a random access process (Random Access Channel less, RACH). Instead, it sends information to the target cell to allow the target cell to determine that the terminal device has accessed the target cell, which can also be understood as the terminal confirming access to the target cell. For example, the terminal sends a specific "first UL data" to the target cell to allow the target cell to determine user access, such as the terminal sends a Radio Resource Control Reconfiguration Complete (RRCReconfigurationComplete) message.

[0098] In the embodiment of the present disclosure, the information used by the target cell to determine user access / terminal confirmation of access to the target cell is referred to as first information.

[0099] In one implementation of the disclosed embodiments, the resource used to transmit the first information is the CG PUSCH resource of the target cell. If a transmission fails, the first information can be transmitted to the target cell using the CG PUSCH resource of the target cell through repeated transmission. Controlling the power used to transmit the first information / configuring the transmit power of the CG PUSCH resource of the target cell to ensure a successful transmission of the first information is an issue that needs to be addressed.

[0100] In view of this, an embodiment of the present disclosure provides a power control method, which is a power control method for sending first information to a target cell. Based on the power control method provided by an embodiment of the present disclosure, the first information is sent to the target cell to access the target cell and complete the cell handover.

[0101] FIG2 is an interactive diagram of a power control method according to an embodiment of the present disclosure. As shown in FIG2 , an embodiment of the present disclosure relates to a power control method, which includes:

[0102] Step S2101: The terminal receives pre-configuration information of the network.

[0103] In some embodiments, pre-configuration information for each candidate is sent to the terminal.

[0104] In some embodiments, the access network device sends configuration information to the terminal. Optionally, the access network device sends a Radio Resource Control (RRC) message to the terminal to pre-configure the candidate cells. For example, the access network device pre-configures the measurement reference signal of each candidate cell for the user, the random access resource for the user to measure the TA, etc.

[0105] In some embodiments, CG PUSCH resources of each candidate cell are configured for sending access messages during the handover process.

[0106] Step S2102: The terminal sends a first report.

[0107] In some embodiments, the terminal sends a first report to the serving cell.

[0108] For example, the serving cell can be understood as the network equipment (such as access network equipment) to which the serving cell belongs.

[0109] It should be noted that the terminal sending the first report to the serving cell can be understood as the terminal sending the first report to a network device (eg, an access network device) to which the serving cell belongs.

[0110] In some embodiments, the serving cell receives a first report sent by the terminal.

[0111] It should be noted that the serving cell receiving the first report sent by the terminal can be understood as the network device (such as access network device) to which the serving cell belongs receiving the first report sent by the terminal.

[0112] In some embodiments, the serving cell receives the first report.

[0113] In some embodiments, the serving cell receives a first report sent from the terminal.

[0114] In some embodiments, the first report is used to report beam measurement results of one or more candidate cells.

[0115] In some embodiments, the first report is used to report beam measurement results of the serving cell and one or more candidate cells.

[0116] Step S2103: The serving cell determines whether to perform cell handover.

[0117] In some embodiments, the serving cell determines whether to perform cell switching based on the first report.

[0118] In some embodiments, the serving cell determines that a cell handover is required based on the first report, and selects a target cell for handover from various candidate cells.

[0119] Step S2104: The serving cell sends a first instruction.

[0120] In some embodiments, the serving cell sends the first instruction to the terminal.

[0121] It should be noted that the serving cell sending the first instruction to the terminal can be understood as the network device (such as access network device) to which the serving cell belongs sending the first instruction to the terminal.

[0122] It can be understood that the terminal receiving the first instruction sent by the serving cell can be understood as the terminal receiving the first instruction sent by a network device (such as an access network device) to which the serving cell belongs.

[0123] In some embodiments, the terminal receives a first instruction.

[0124] In some embodiments, the first instruction is used to instruct the terminal to perform cell switching.

[0125] In some embodiments, the first instruction is a switch instruction.

[0126] In some embodiments, the name of the first instruction is not limited, and it can be, for example, "cell switch command", "switching indication information", etc.

[0127] Step S2105: The terminal determines the first power.

[0128] In some embodiments, the terminal determines the first power, which can be understood as the terminal determining the first power for sending the first information to a network device (eg, an access network device) to which the target cell belongs.

[0129] In some embodiments, the first power is used by the terminal to send first information to the target cell.

[0130] In some embodiments, the first information is used to indicate that the target cell terminal will be handed over to the target cell.

[0131] In some embodiments, the target cell is a target cell selected for cell switching by the serving cell from one or more candidate cells based on the measurement results of each beam.

[0132] In some embodiments, if one transmission fails, the terminal may repeatedly transmit the first information to the target cell.

[0133] In some embodiments, the first power is determined based on the number of repeated transmissions. For example, the name of the repeated transmission is not limited, and it may also be, for example, "repeated transmission" or "retransmission".

[0134] In some embodiments, the number of repeated transmissions is the number of times the first information is repeatedly sent to the target cell. Optionally, the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on the non-scheduled physical uplink shared channel. The non-scheduled physical uplink shared channel may also be referred to as CG PUSCH.

[0135] In some embodiments, during retransmission of the first information, the first power may be gradually increased.

[0136] Exemplarily, gradually increasing the first power may also be understood as increasing the first power step by step or increasing the first power in a stepwise manner.

[0137] It can be understood that the retransmission of the first information uses CG PUSCH resources.

[0138] In some embodiments, each time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude.

[0139] In some embodiments, the name of the first power range is not limited, and it can be, for example, "power boost range", "power boost step", etc.

[0140] In some embodiments, the first power amplitude may be configured for the terminal by the network device.

[0141] In some embodiments, the first power is less than or equal to the maximum transmission power.

[0142] In some embodiments, the maximum transmission power may be referred to as maximum power, maximum power limit, etc.

[0143] In some embodiments, the first power is determined based on the number of repeated transmissions, the power boost step size, and a power control parameter.

[0144] In some embodiments, the power boost step size is the same as the first power amplitude.

[0145] In some embodiments, the power control parameter includes path loss.

[0146] In some embodiments, path loss refers to the loss of a signal during transmission, which may also be referred to as power loss, path consumption, etc.

[0147] In some embodiments, open-loop power control is used. Open-loop power control can be understood as a power control method without feedback or ignoring feedback, that is, the network does not dynamically adjust the next uplink transmission power according to the user's uplink transmission.

[0148] In some embodiments, the first power may be determined by the following formula:

[0149] P=min{P c,max ,P target +α×PL+f(l)+Δ}

[0150] Wherein, P can represent the first power, P c,max represents the maximum transmission power, PL represents the path loss, α represents the weight factor used to adjust the path loss, f(l) represents the closed-loop adjustment value, and Δ represents other adjustment variables, which are related to the transmission bandwidth, modulation and coding method, etc.

[0151] Among them, P target =P0+NumberRetransmission×RampingStep, where P0 represents the target received power, NumberRetransmission represents the number of repeated transmissions, and RampingStep represents the power ramping step.

[0152] In some embodiments, when determining the first power, the closed loop index parameter in the CG PUSCH is ignored. Optionally, the closed loop adjustment value f(l) is directly specified as 0.

[0153] In some embodiments, the path loss is determined based on a path loss reference signal. It is understood that the path loss reference signal is a reference signal for measuring path loss, which may also be referred to as a path loss measurement signal, a reference signal, or the like.

[0154] In some embodiments, the path loss reference signal is determined based on a first beam, wherein the first beam is used to retransmit the first information, and the path loss reference signal is a synchronization signal block (Synchronization Signal and PBCH block, SSB) associated with the beam.

[0155] Exemplarily, the synchronization signal block is also referred to as a "synchronization signal / physical broadcast channel signal block".

[0156] In some embodiments, the path loss reference signal is a first synchronization signal block corresponding to the first beam.

[0157] In some embodiments, the first beam is a beam selected for performing beam measurement on the target cell.

[0158] In some embodiments, the path loss reference signal is determined based on second information, wherein the second information is used to instruct the terminal to perform cell handover and indicates the transmission configuration indicator (TCI) state of the target cell, and the path loss reference signal is a second synchronization signal block associated with the TCI state.

[0159] In some embodiments, the second information may be understood as a cell handover instruction, and the path loss reference signal is an SSB associated with the transmission configuration indication state TCI state indicating the target cell in the cell handover instruction.

[0160] In some embodiments, if the TCI state is associated with a time-frequency tracking reference signal (TRS), the path loss reference signal is the SSB associated with the TRS.

[0161] In some embodiments, if the selected beam does not change in the retransmission of the CG PUSCH, the first power may be gradually increased based on the number of repeated transmissions.

[0162] In some embodiments, the number of repeated transmissions is determined based on a counter. Optionally, when the initial value of the counter COUNT=0, the number of repeated transmissions NumberRetransmission=COUNT; when the initial value of the counter COUNT=1, NumberRetransmission=COUNT-1.

[0163] In some embodiments, the first power may be determined as follows:

[0164] P=min{P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep}

[0165] Wherein, P can represent the first power, P c,max represents the maximum transmission power, P0 represents the target received power, PL represents the path loss, α represents the weight factor used to adjust the path loss, Δ represents other adjustment variables related to the transmission bandwidth, modulation and coding method, etc., NumberRetransmission represents the number of repeated transmissions, and RampingStep represents the power ramp step size.

[0166] In some embodiments, when the beam used by the terminal to repeatedly send the first information to the target cell changes, the repetition transmission counter is reset.

[0167] In some embodiments, the network device may configure the power boost step size to the terminal in advance.

[0168] In some embodiments, the increased power does not exceed the power limit.

[0169] In some embodiments, if the selected beam does not change in the retransmission of the CG PUSCH, the transmission power of the CG-PUSCH can be gradually increased.

[0170] Step S2106: The terminal sends first information to the target cell.

[0171] In some embodiments, the first information is sent based on a first power.

[0172] In some embodiments, the target cell receives the first information sent by the terminal.

[0173] It should be noted that the target cell receiving the first information sent by the terminal to the target cell can be understood as the network device (such as access network device) to which the target cell belongs receiving the first information sent by the terminal.

[0174] In some embodiments, the first information is used to indicate a target cell, and the terminal will be handed over to the target cell.

[0175] In some embodiments, the first information is confirmation information.

[0176] In some embodiments, the first information is sent to the target cell when the terminal receives the first instruction.

[0177] In some embodiments, the first information is sent to the target cell when the serving cell instructs the terminal to perform cell switching.

[0178] In some embodiments, the name of the first information is not limited, and it can be, for example, "first uplink data", "confirmation message", "confirmation switching message", etc.

[0179] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0180] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0181] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0182] In some embodiments, the terms “downlink control information (DCI)”, “downlink (DL) assignment”, “DL DCI”, “uplink (UL) grant”, “UL DCI” and the like may be used interchangeably.

[0183] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0184] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0185] In some embodiments, the terms "search space", "search space set", "search space configuration", "search space set configuration", "control resource set (CORESET)", "CORESET configuration" and the like may be used interchangeably.

[0186] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0187] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0188] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0189] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0190] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0191] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) state", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", "panel" and the like can be used interchangeably.

[0192] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0193] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0194] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0195] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0196] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0197] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0198] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2106. For example, step S2105 can be implemented as an independent embodiment, step S2106 can be implemented as an independent embodiment, steps S2105 + S2106 can be implemented as independent embodiments, steps S2104 + step S2105 + step S2106 can be implemented as independent embodiments, steps S2103 + step S2104 + step S2105 + step S2106 can be implemented as independent embodiments, and steps S2101 + step S2102 + step S2103 + step S2104 + step S2105 + step S2106 can be implemented as independent embodiments, but are not limited thereto.

[0199] In some embodiments, steps S2105 and S2106 may be executed in an exchanged order or simultaneously, and steps xx and xx may be executed in an exchanged order or simultaneously.

[0200] In some embodiments, step S2102, step S2103, step S2104, step S2105, and step S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0201] In some embodiments, step S2101, step S2103, step S2104, step S2105, and step S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0202] In some embodiments, step S2101, step S2102, step S2104, step S2105, and step S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0203] In some embodiments, step S2101, step S2102, step S2103, step S2105, and step S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0204] In some embodiments, step S2101, step S2102, step S2103, step S2104, and step S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0205] In some embodiments, step S2101, step S2102, step S2103, step S2104, and step S2105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0206] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0207] In some embodiments, FIG3A is a flow chart of a power control method according to an embodiment of the present disclosure. As shown in FIG3A , an embodiment of the present disclosure relates to a power control method, the method comprising:

[0208] Step S3101, pre-configuration information.

[0209] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0210] Step S3102: Send a first report.

[0211] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0212] Step S3103: Get the first instruction.

[0213] The optional implementation of step S3103 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0214] Step S3104: determine the first power.

[0215] The optional implementation of step S3104 can refer to the optional implementation of step S2105 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0216] Step S3105, sending the first information.

[0217] The optional implementation of step S3105 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0218] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3105. For example, step S3104 can be implemented as an independent embodiment, step S3105 can be implemented as an independent embodiment, step S31014 + step S3105 can be implemented as an independent embodiment, step S31013 + step S31014 + step S3105 can be implemented as an independent embodiment, step S3102 + step S3103 + step S3104 + step S3105 can be implemented as an independent embodiment, and step S3101 + step S3102 + step S3103 + step S3104 + step S3105 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0219] In some embodiments, steps S3104 and S3105 may be executed in an exchanged order or simultaneously, steps S3102 and S3103 may be executed in an exchanged order or simultaneously, and steps S3101 and S3102 may be executed in an exchanged order or simultaneously.

[0220] In some embodiments, step S3101, step S3102, step S3103, and step S3104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0221] In some embodiments, step S3101, step S3102, step S3103, and step S3105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0222] In some embodiments, step S3102, step S3103, step S3104, and step S3105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0223] In some embodiments, step S3101, step S3103, step S3104, and step S3105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0224] In some embodiments, step S3101, step S3102, step S3104, and step S3105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0225] FIG3B is a flow chart of a power control method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a power control method, which includes:

[0226] Step S3201, obtain the first instruction.

[0227] The optional implementation of step S3201 can refer to step S2104 in FIG. 2 , the optional implementation of step S3103 in FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0228] Step S3202: determine the first power.

[0229] The optional implementation of step S3202 can refer to step S2105 of FIG. 2 , the optional implementation of step S3104 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0230] Step S3203, sending the first information.

[0231] The optional implementation of step S3203 can refer to step S2106 in FIG. 2 , the optional implementation of step S3105 in FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0232] The communication method according to the embodiments of the present disclosure may include at least one of steps S3201 to S3203. For example, step S3202 may be implemented as an independent embodiment, step S3203 may be implemented as an independent embodiment, steps S3202+S3203 may be implemented as independent embodiments, and steps S3201+S3202+S3203 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0233] In some embodiments, step S3201 and step S3202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0234] In some embodiments, step S3201 and step S3203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0235] In some embodiments, step S3202 and step S3203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0236] In the embodiment of the present disclosure, step S3202 may be combined with S3101 to S3103 of FIG. 3A , and step S3203 may be combined with S3101 to S3104 of FIG. 3A .

[0237] FIG3C is a flow chart of a power control method according to an embodiment of the present disclosure. As shown in FIG3C , the embodiment of the present disclosure relates to a power control method, which includes:

[0238] Step S3301, determine the first power.

[0239] The optional implementation of step S3301 can be found in step S2105 of Figure 2, the optional implementation of step S3104 of Figure 3A, step S3202 of Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A and 3B, which will not be repeated here.

[0240] Step S3302, sending the first information.

[0241] The optional implementation of step S3302 can be found in step S2106 of Figure 2, the optional implementation of step S3105 of Figure 3A, step S3203 of Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A and 3B, which will not be repeated here.

[0242] In an optional embodiment, step xx includes a lower-level scheme (or median scheme) step x. The optional implementation method of step x can be found in step xx, step xx of Figure 2, step xx, step xx of Figure 3A, step xx of Figure 3B, the optional implementation method of step xx, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0243] In some embodiments, the terminal determines a first power, and the first power is determined based on the number of repeated transmissions, where the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on the unscheduled physical uplink shared channel, and the first information is used to indicate that the terminal confirms switching to the target cell; the first power is used for the terminal to send the first information to the target cell.

[0244] In some embodiments, the first power and the number of repeated transmissions satisfy the following relationship: each time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude.

[0245] In some embodiments, the first power is less than or equal to the maximum transmission power.

[0246] In some embodiments, the first power is determined based on the number of repeated transmissions, the power boost step size, and a power control parameter.

[0247] In some embodiments, the power control parameters include path loss; the path loss is determined based on a path loss reference signal, and the path loss reference signal is determined in at least one of the following ways: determined based on a first beam, wherein the first beam is used to retransmit the first information, and the path loss reference signal is a first synchronization signal block corresponding to the first beam, and the first beam is the beam selected for beam measurement of the target cell; determined based on second information, wherein the second information is used to instruct the terminal to perform cell switching and indicate the transmission configuration indication status of the target cell, and the path loss reference signal is a second synchronization signal block associated with the transmission configuration indication status.

[0248] In some embodiments, the number of repeated transmissions is determined based on a counter, wherein, when the initial value of the counter COUNT=0, the number of repeated transmissions NumberRetransmission=COUNT; when the initial value of the counter COUNT=1, NumberRetransmission=COUNT-1.

[0249] In some embodiments, the method further includes: when a beam used by the terminal to repeatedly send the first information to the target cell changes, a resetting of a repeated transmission counter is performed.

[0250] In some embodiments, the method further includes: sending first information to the target cell based on the first power.

[0251] FIG4A is a flow chart of a power control method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a power control method, which includes:

[0252] Step S4101, obtain the first report.

[0253] The optional implementation of step S4101 can refer to the optional implementation of step S2102 in Figure 2, the optional implementation of step S3102 in Figure 3A and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0254] Step S4102, determine whether to perform cell switching.

[0255] The optional implementation of step S4102 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0256] Step S4103: Send the first instruction.

[0257] The optional implementation of step S4103 can refer to the optional implementation of step S2104 in Figure 2, the optional implementation of step S3103 in Figure 3A and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0258] Step S4104, obtaining first information.

[0259] The optional implementation of step S4104 can refer to the optional implementation of step S2106 in Figure 2, the optional implementation of step S3105 in Figure 3A and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0260] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4104. For example, step S4103 may be implemented as an independent embodiment, step S4104 may be implemented as an independent embodiment, step S4103 + step S4104 may be implemented as an independent embodiment, step S4102 + step S4103 + step S4104 may be implemented as an independent embodiment, and step S4101 + step S4102 + step S4103 + step S4104 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0261] In some embodiments, step S4102, step S4103, and step S4104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0262] In some embodiments, step S4101, step S4103, and step S4104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0263] In some embodiments, step S4101, step S4102, and step S4104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0264] FIG4B is a flow chart of a power control method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a power control method, which includes:

[0265] Step S4201, determine whether to perform cell switching.

[0266] Optional implementations of step S4201 may refer to step S2103 of FIG. 2 , step S4102 of FIG. 4A , and other related parts of the embodiments involved in FIG. 2 and FIG. 4A , which will not be described in detail here.

[0267] Step S4202: Send a first instruction.

[0268] The optional implementation of step S4202 can be found in step S2104 of Figure 2A, step S3103 of Figure 3A, the optional implementation of step S3201 of Figure 3B, and step S4103 of Figure 4A, as well as other related parts in the embodiments involved in Figure 2, Figure 3A, Figure 3B, and Figure 4A, which will not be repeated here.

[0269] Step S4203, obtain first information.

[0270] The optional implementation of step S4203 can be found in step S2106 of Figure 2A, the optional implementation of step S3105 of Figure 3A, step S3203 of Figure 3B and step S4104 of Figure 4A, as well as other related parts in the embodiments involved in Figures 2, 3A, 3B and 4A, which will not be repeated here.

[0271] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4201 to S4203. For example, step S4202 may be implemented as an independent embodiment, and step S4203 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0272] In some embodiments, step S4201 and step S4202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0273] In some embodiments, step S4201 and step S4203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0274] In some embodiments, step S4202 and step S4203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0275] In the embodiment of the present disclosure, step S4202 may be combined with steps S4101, S4102, and S4104 of FIG. 4A, and step S4203 may be combined with steps S4101-S4103 of FIG. 4A.

[0276] FIG4C is a flow chart of a power control method according to an embodiment of the present disclosure. As shown in FIG4C , the embodiment of the present disclosure relates to a power control method, which includes:

[0277] Step S4301: Send a first instruction.

[0278] The optional implementation of step S4201 can refer to step S2104 in Figure 2A, the optional implementation of step S3103 in Figure 3A, step S3201 in Figure 3B, step S4101 in Figure 4A and step S4202 in Figure 4B, and other related parts in the embodiments involved in Figures 2, 3A, 3B, 4A and 4B, which will not be repeated here.

[0279] Step S4302, obtain first information.

[0280] The optional implementation of step S4201 can be found in step S2106 of Figure 2A, the optional implementation of step S3105 of Figure 3A, step S3203 of Figure 3B, step S3302 of Figure 3C, step S4103 of Figure 4A and step S4203 of Figure 4B, as well as other related parts in the embodiments involved in Figures 2, 4A and 4B, which will not be repeated here.

[0281] In some embodiments, the serving cell receives first information, which is sent by the terminal to the target cell based on a first power, and the first power is determined based on the number of repeated transmissions, which is the number of times the terminal repeatedly sends the first information to the target cell based on the unscheduled physical uplink shared channel; the first information is used to indicate that the terminal confirms switching to the target cell.

[0282] In some embodiments, the first power and the number of repeated transmissions satisfy the following relationship: each time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude.

[0283] In some embodiments, the first power is less than or equal to the maximum transmission power.

[0284] In some embodiments, the first power is determined based on the number of repeated transmissions, the power boost step size, and a power control parameter.

[0285] In some embodiments, the power control parameters include path loss; the path loss is determined based on a path loss reference signal, and the path loss reference signal is determined in at least one of the following ways: determined based on a first beam, wherein the first beam is used to retransmit the first information, and the path loss reference signal is a first synchronization signal block of a reference signal corresponding to the first beam, and the first beam is a beam selected for beam measurement of the target cell; determined based on second information, wherein the second information is used to instruct the terminal to perform cell switching and indicate the transmission configuration indication status of the target cell, and the path loss reference signal is a second synchronization signal block associated with the transmission configuration indication status.

[0286] In some embodiments, the number of retransmissions is determined based on a counter, wherein when the initial value of the counter COUNT=0, the number of retransmissions NumberRetransmission=COUNT; when the initial value of the counter COUNT=1, NumberRetransmission=COUNT-1

[0287] In some embodiments, the count value of the counter is less than or equal to a preconfigured or predefined maximum value of the counter.

[0288] FIG5 is an interactive diagram of a power control method according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a power control method, which includes:

[0289] Step S5101: The terminal determines a first power.

[0290] The optional implementation of step S5101 can be found in step S2105 of Figure 2A, step S3104 of Figure 3A, the optional implementation of step S3202 of Figure 3B, step S3301 of Figure 3C and other related parts in the embodiments involved in Figures 2, 3A, 3B and 3C, which will not be repeated here.

[0291] Step S5102: The terminal sends the first information.

[0292] For the optional implementation of step S5102, please refer to step S2106 of Figure 2A, step S3105 of Figure 3A, the optional implementation of step S3203 of Figure 3B, step S3302 of Figure 3C, step S4104 of Figure 4A, step S4203 of Figure 4B and step S4302 of Figure 4C, as well as other related parts in the embodiments involved in Figures 2, 3A, 3B, 3C, 4A, 4B and 4C, which will not be repeated here.

[0293] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0294] This embodiment also provides a power control method for determining the transmission power of the CG PUSCH for sending a confirmation message to the target cell during the handover process.

[0295] In some embodiments, the power control method includes the following: a CG PUSCH transmission power calculation method, and a CG PUSCH power boost.

[0296] In some embodiments, the transmission power calculation expression of the CG PUSCH satisfies the following relationship:

[0297] P=min{P c,max ,P targer +α×PL+f(l)+Δ},

[0298] Among them, P target =P0+NumberRetransmission×RampingSte;

[0299] Or P = min {P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep};

[0300] Among them, P c,max is the maximum transmission power, P0 is the target received power, PL is the path loss, α is the weight factor used to adjust the path loss, Δ is other adjustment variables, f(l) is the closed-loop adjustment value, and RampingStep is the power ramp-up step size.

[0301] In some embodiments, the transmission power calculation method of the CG PUSCH includes at least one of the following:

[0302] -A) Parameter determination method

[0303] -B) Path loss calculation

[0304] In some embodiments, the parameter determination method includes: performing only open-loop power control, ignoring the closed loop index parameter in the existing CG PUSCH by the user; or directly setting the closed-loop adjustment value f=0 at this time. It is configured by the network as in the SDT CG PUSCH.

[0305] In some embodiments, the path loss calculation includes at least one of the following:

[0306] -a) When configuring the measurement reference signal SSB for the user, also configure ss-PBCH-BlockPower for calculating path loss.

[0307] -b) The path loss reference signal is the SSB associated with the TCI state indicated by the user in the cell switch command. If the SSB is associated with a TRS, it is the SSB associated with the TRS.

[0308] -c) If it is a retransmission of CG PUSCH, the SSB corresponding to the new beam selected by the user.

[0309] In some embodiments, the CG PUSCH power boost includes at least one of the following:

[0310] 1) If the selected beam does not change during CG PUSCH retransmission, the user can gradually increase the CG-PUSCH transmit power, and the expression satisfies the following relationship:

[0311] P=min{P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep}

[0312] Among them, P can represent the transmission power of CG PUSCH, P c,max represents the maximum transmission power, P0 represents the target received power, PL represents the path loss, α represents the weight factor used to adjust the path loss, Δ represents other adjustment variables related to the transmission bandwidth, modulation and coding method, etc., NumberRetransmission represents the number of repeated transmissions, and RampingStep represents the power ramp step size.

[0313] 2) A counter is introduced to determine the number of retransmissions NumberRetransmission. If the transmission beam is reselected, the counter is set to 1.

[0314] 3) The power ramping step is configured to the user in advance.

[0315] 4) The increased power cannot exceed the power limit.

[0316] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0317] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0318] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0319] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0320] Figure 6A is a schematic diagram of the structure of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 6A, the terminal 6100 may include: at least one of a processing module 6101, a transceiver module 6102, etc. In some embodiments, the processing module is used to determine a first power, and the first power is determined based on the number of repeated transmissions. The number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on the unscheduled physical uplink shared channel. The first information is used to indicate that the terminal confirms switching to the target cell. The transceiver module is used to send the first information to the target cell based on the first power. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2102, step S2104, step S2106, but not limited thereto) executed by the terminal in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps (for example, step S2101, step S2105, but not limited thereto) executed by the terminal in any of the above methods, which will not be repeated here.

[0321] Figure 6B is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 6B, the network device 6200 may include: a transceiver module 6201, for receiving a first message, wherein the first message is sent by the terminal to the target cell based on a first power, the first power is determined based on the number of repeated transmissions, and the number of repeated transmissions is the number of times the terminal repeatedly sends the first message to the target cell based on the scheduling-free physical uplink shared channel; wherein the first information is used to indicate that the terminal confirms switching to the target cell. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2102, step S2104 and step S2106, but not limited thereto) performed by the terminal in any of the above methods, which will not be repeated here.

[0322] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0323] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0324] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0325] As shown in FIG7A , the communication device 7100 includes one or more processors 7101. The processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 7100 is used to perform any of the above methods.

[0326] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0327] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceiver 7103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2102, step S2104, step S2106, but not limited thereto), and the processor 7101 performs at least one of the other steps (for example, step S2101, step S2103, step S2105, but not limited thereto).

[0328] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0329] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102. The interface circuit 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0330] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0331] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0332] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0333] In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to the memory 7203. The interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.

[0334] In some embodiments, the interface circuit 7202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2102, step S2104, step S2106, but not limited to these), and the processor 7201 executes at least one of the other steps (for example, step S2101, step S2103, step S2105, but not limited to these).

[0335] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0336] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0337] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0338] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0339] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0340] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A power control method, characterized in that: include: The terminal determines a first power, where the first power is determined based on a number of repeated transmissions, where the number of repeated transmissions is the number of times the terminal repeatedly sends first information to a target cell based on a scheduling-free physical uplink shared channel CG PUSCH, where the first information is used to indicate that the terminal confirms switching to the target cell; The first power is used by the terminal to send the first information to the target cell.

2. The method according to claim 1, characterized in that The first power and the number of repeated transmissions satisfy the following relationship: Every time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude, and the first power is less than or equal to the maximum transmission power.

3. The method according to claim 1 or 2, characterized in that: The first power is determined based on the number of repeated transmissions, a power increase step size, and a power control parameter.

4. The method according to claim 3, characterized in that The power control parameter includes path loss; The path loss is determined based on a path loss reference signal, and the path loss reference signal is determined in at least one of the following ways: Determined based on a first beam, wherein the first beam is used to retransmit the first information, the path loss reference signal is a first synchronization signal block corresponding to the first beam, and the first beam is a beam selected for beam measurement of the target cell; Determined based on second information, wherein the second information is used to instruct the terminal to perform cell switching and indicate a transmission configuration indication state of a target cell, and the path loss reference signal is a second synchronization signal block associated with the transmission configuration indication state.

5. The method according to any one of claims 1 to 4, characterized in that: The number of repeated transmissions is determined based on a counter; wherein, when the initial value of the counter COUNT=0, the number of repeated transmissions NumberRetransmssion=COUNT; when the initial value of the counter COUNT=1, NumberRetransmssion=COUNT-1.

6. The method according to claim 5, characterized in that The method further comprises: The beam used by the terminal to repeatedly send the first information to the target cell changes, and the repeated transmission counter is reset.

7. The method according to any one of claims 1 to 6, characterized in that: The first power is: P = min {P c,max ,P target +α×PL+f(l)+Δ}, Among them, P target =P0+NumberRetransmission×RampingSte; Or P = min {P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep}; Among them, P c,max is the maximum transmission power, P0 is the target received power, PL is the path loss, α is the weight factor used to adjust the path loss, Δ is other adjustment variables, f(l) is the closed-loop adjustment value, and RampingStep is the power boost step size.

8. A power control method, characterized in that: include: The network device receives first information, where the first information is sent by the terminal to the target cell based on a first power, where the first power is determined based on a number of repeated transmissions, where the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on a scheduling-free physical uplink shared channel; The first information is used to instruct the terminal to confirm switching to the target cell.

9. The method according to claim 8, characterized in that The first power and the number of repeated transmissions satisfy the following relationship: Every time the number of repeated transmissions increases by a first number, the first power increases by a first power amplitude, and the first power is less than or equal to the maximum transmission power.

10. The method according to claim 8 or 9, characterized in that: The first power is determined based on the number of repeated transmissions, a power increase step size, and a power control parameter.

11. The method according to claim 10, characterized in that The power control parameter includes path loss; The path loss is determined based on a path loss reference signal, and the path loss reference signal is determined in at least one of the following ways: Determined based on a first beam, wherein the first beam is used to retransmit the first information, the path loss reference signal is a first synchronization signal block of a reference signal corresponding to the first beam, and the first beam is a beam selected for beam measurement of the target cell; Determined based on second information, wherein the second information is used to instruct the terminal to perform cell switching and indicate a transmission configuration indication state of a target cell, and the path loss reference signal is a second synchronization signal block associated with the transmission configuration indication state.

12. The method according to any one of claims 8 to 11, characterized in that The number of repeated transmissions is determined based on a counter, wherein, when the initial value of the counter COUNT=0, the number of repeated transmissions NumberRetransmssion=COUNT; when the initial value of the counter COUNT=1, NumberRetransmssion=COUNT-1.

13. The method according to any one of claims 8 to 12, characterized in that The first power is: P = min {P c,max ,P target +α×PL+f(l)+Δ}, Among them, P target =P0+NumberRetransmission×RampingSte; Or P = min {P c,max ,P0+α×PL+Δ+NumberRetransmission×RampingStep}; Among them, P c,max is the maximum transmission power, P0 is the target received power, PL is the path loss, α is the weight factor used to adjust the path loss, Δ is other adjustment variables, f(l) is the closed-loop adjustment value, and RampingStep is the power boost step size.

14. A terminal, characterized in that: include: a processing module, configured to determine a first power, where the first power is determined based on a number of repeated transmissions, where the number of repeated transmissions is the number of times that a terminal repeatedly sends first information to a target cell based on a scheduling-free physical uplink shared channel, where the first information is used to indicate that the terminal confirms switching to the target cell; A transceiver module is used to send the first information to a target cell based on the first power.

15. A network device, characterized in that: include: a transceiver module, configured to receive first information, where the first information is sent by the terminal to the target cell based on a first power, where the first power is determined based on a number of repeated transmissions, where the number of repeated transmissions is the number of times the terminal repeatedly sends the first information to the target cell based on a scheduling-free physical uplink shared channel; The first information is used to instruct the terminal to confirm switching to the target cell.

16. A terminal, characterized in that: include: one or more processors; The processor is used to execute the power control method according to any one of claims 1 to 7.

17. A network device, characterized in that: include: one or more processors; The processor is used to execute the power control method according to any one of claims 8 to 13.

18. A communication system, characterized in that: The invention comprises a terminal and a network device, wherein the terminal is configured to implement the power control method according to any one of claims 1 to 7, and the network device is configured to implement the power control method according to any one of claims 8 to 13.

19. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to perform the power control method according to any one of claims 1 to 7 or claims 8 to 13.

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