Method, terminal device and network device for power control

Abstract

A power control method, a terminal device and a network device are provided to facilitate guaranteeing reliable transmission of uplink data and reducing interference of non-active data transmission. The method comprises: the terminal device receiving a power control parameter for non-active data transmission sent by the network device; and the terminal device determining a target transmission power for non-active data transmission according to the power control parameter.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communications, and in particular to a power control method, a terminal device and a network device. BACKGROUND

[0002] Small packet data transmission is supported in a Long Term Evolution (LTE) system, but the small packet data transmission in the LTE system is used for specific scenarios, such as a type of terminal without networking, and the traffic of such terminals is small in data volume. Therefore, the small packet data transmission in the LTE system only supports data transmission of one data packet.

[0003] In a NR system, small packet data transmission in an inactive state is supported, and there are multiple small packet data transmissions, and the terminal device is mobile. In this case, it is an urgent problem to perform uplink power control to ensure reliable transmission of uplink data and reduce interference of data transmission in the inactive state. SUMMARY

[0004] Embodiments of the present application provide a power control method, a terminal device and a network device, which are beneficial to ensure reliable transmission of uplink data and reduce interference of data transmission in the inactive state.

[0005] In a first aspect, a power control method is provided, which includes: a terminal device receiving a power control parameter for data transmission in an inactive state sent by a network device; and the terminal device determining a target transmission power for data transmission in the inactive state according to the power control parameter.

[0006] In a second aspect, a power control method is provided, which includes: a network device sending a power control parameter for data transmission in an inactive state to a terminal device.

[0007] In a third aspect, a terminal device is provided, which is configured to perform the method in the first aspect or any possible implementation manner of the first aspect. Specifically, the terminal device includes units configured to perform the method in the first aspect or any possible implementation manner of the first aspect.

[0008] In a fourth aspect, a network device is provided, which is configured to perform the method in the second aspect or any possible implementation manner of the second aspect. Specifically, the network device includes units configured to perform the method in the second aspect or any possible implementation manner of the second aspect.

[0009] In a fifth aspect, a terminal device is provided, which includes a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to perform the method in the first aspect or any implementation manner thereof.

[0010] In a sixth aspect, a network device is provided, comprising: a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the second aspect or its respective implementations.

[0011] In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or their respective implementations.

[0012] Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes a method as described in any one of the first to second aspects or their respective implementations.

[0013] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, which enables a computer to execute the method of any one of the first to second aspects or their respective implementations.

[0014] In a ninth aspect, a computer program product is provided, comprising computer program instructions, which enable a computer to execute the method of any one of the first to second aspects or their respective implementations.

[0015] In a tenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method of any one of the first to second aspects or their respective implementations.

[0016] Based on the above technical solution, the network device can configure power control parameters for non-activated data transmission for the terminal device, such as open-loop power control parameters or closed-loop power control parameters, so that after the terminal device enters the non-activated state, it can perform non-activated data transmission based on the power control parameters, which is conducive to ensuring the reliability of non-activated data transmission and can reduce interference with other data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a communication system architecture provided by this application.

[0018] Figure 2 This is a schematic diagram of a terminal device state transition provided by this application.

[0019] Figure 3 This is a schematic diagram of an inactive terminal device RNA provided in this application.

[0020] Figure 4is a schematic flow chart of an RNAU with context migration provided by the present application.

[0021] Figure 5 is a schematic flow chart of an RNAU without context migration provided by the present application.

[0022] Figure 6 is a schematic flow chart of small data transmission provided by the present application.

[0023] Figure 7 is a schematic interaction diagram of a power control method provided by an embodiment of the present application.

[0024] Figures 8 to 10 is a schematic diagram of non-active state data transmission according to an embodiment of the present application.

[0025] Figure 11 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

[0026] Figure 12 is a schematic block diagram of a network device provided by an embodiment of the present application.

[0027] Figure 13 is a schematic block diagram of a communication device provided by an embodiment of the present application.

[0028] Figure 14 is a schematic block diagram of a chip provided by an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative labor on the basis of the embodiments in the present application shall fall within the scope of the present application.

[0030] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0031] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0032] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0033] Optionally, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0034] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0035] The terminal device can be a station (ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0036] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0037] In an embodiment of the present application, the terminal device may be a mobile phone, 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, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0038] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0039] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0040] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0041] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0042] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0043] Figure 1 One network device and two terminal devices are shown as an example. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area. This embodiment of the present application does not limit this.

[0044] Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0045] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be called a communication device. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here; the communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0046] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0047] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0048] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0049] It should be understood that in the embodiment of the present application, NR can also be deployed independently. In order to reduce air interface signaling and quickly restore wireless connections and quickly restore data services in the 5G network environment, a new radio resource control (RRC) state is defined, namely the RRC_INACTIVE (inactive) state. This state is different from the RRC_IDLE (idle) and RRC_CONNECTED (connected) states.

[0050] In the RRC_IDLE state, mobility is based on cell selection and reselection by the terminal device, paging is initiated by the core network (CN), and the paging area is configured by the CN. There is no terminal device access stratum (AS) context on the base station side, and no RRC connection exists.

[0051] In the RRC_CONNECTED state, an RRC connection exists, and a device AS context exists between the base station and the terminal. The network knows the terminal's location at the cell level. Mobility is controlled by the network. Unicast data can be transmitted between the terminal and the base station.

[0052] RRC_INACTIVE: Mobility is based on cell selection and reselection of the terminal device. There is a connection between CN and NR. The AS context of the terminal device exists on a certain base station. Paging is triggered by the Radio Access Network (RAN). The RAN-based paging area is managed by the RAN. The network equipment knows the location of the terminal device based on the RAN paging area level.

[0053] It should be noted that in the embodiments of the present application, the non-activated state may also be referred to as the deactivated state, and the present application does not limit this.

[0054] The network device can control the state transition of the terminal device, for example Figure 2 As shown, a terminal device in the RRC_CONNECTED state can enter the RRC_IDLE state by releasing the RRC connection; a terminal device in the RRC_IDLE state can enter the RRC_CONNECTED state by establishing an RRC connection; a UE in the RRC_CONNECTED state can enter the RRC_INACTIVE state by suspending (Release with Suspend) the RRC connection; a UE in the RRC_INACTIVE state can enter the RRC_CONNECTED state by resuming (Resume) the RRC connection, or enter the RRC_IDLE state by releasing the RRC connection.

[0055] It should be noted that when the terminal device is in the RRC_INACTIVE state, it will return to the idle state autonomously in the following situations:

[0056] When receiving the CN initial paging message;

[0057] When initiating an RRC recovery request, start timer T319. If the timer times out;

[0058] When the integrity protection verification of contention-based random access message 4 (Message 4, MSG4) fails;

[0059] When the cell reselects to another Radio Access Technology (RAT);

[0060] Enter the camp on any cell state.

[0061] Characteristics of the RRC_INACTIVE state:

[0062] The connection between RAN and CN is maintained;

[0063] The terminal device and at least one gNB store the AS context;

[0064] The terminal device is reachable from the RAN side, and the relevant parameters are configured by the RAN;

[0065] When the terminal device moves within the RAN Notification Area (RNA) configured by the RAN, it does not need to notify the network side (core network equipment). However, when it moves out of the RNA, it needs to notify the network side (core network equipment).

[0066] The UE moves within the RNA according to the cell selection and reselection method.

[0067] It should be noted that RNA can be specifically Figure 3 As shown, in Figure 3 In the RNA shown, the terminal device does not need to notify the network side when it moves between base station 1 and base station 5, but needs to notify the network side when the terminal device moves to base station 6 or base station 7.

[0068] When the terminal device is in the RRC_INACTIVE state, the network device will configure the RRC_INACTIVE configuration parameters for the terminal device through the RRC Release dedicated signaling, for example, configure RNA. RNA is used to control the area where the terminal device performs cell reselection in the inactive state, which is also the initial paging range area of ​​RAN.

[0069] When a terminal device moves within the RNA area, it does not need to notify the network side and follows the mobility behavior in the idle state, that is, the cell selection and reselection criteria. When the terminal device moves out of the paging area configured by the RAN, it will trigger the terminal device to restore the RRC connection and re-acquire the paging area configured by the RAN. When downlink data arrives at the terminal device, the gNB that maintains the connection between the RAN and the CN for the terminal device will trigger all cells in the RAN paging area to send a paging message to the terminal device, so that the terminal device in the INACTIVE state can restore the RRC connection and receive data. The terminal device in the INACTIVE state is configured with a RAN paging area. In order to ensure the reachability of the terminal device in this area, the terminal device needs to perform periodic location updates according to the period configured by the network.

[0070] Therefore, the scenarios that trigger the terminal device to perform RNA update include RAN Notification Area Update (RNAU) timer expiration or UE moving to an area outside the RNA.

[0071] It should be noted that when the target eNB for a terminal device to initiate an RRC connection recovery process is not the anchor eNB, the anchor eNB determines whether the terminal device's context needs to be transferred to the target eNB. Therefore, the target eNB typically sends the cause value (cause) carried in the RRC connection recovery request message initiated by the terminal device to the anchor eNB during the terminal device context request process. The anchor eNB then determines whether the terminal device's context needs to be transferred to the target eNB. For example, periodic RAN location updates generally do not require context transfer.

[0072] For example, Figure 4 As shown, RNAU with context migration is implemented in the following process S11 to S19.

[0073] S11. The terminal device (UE) sends an RRC connection resumption request (Resume Request) to the target base station (gNB). The RRC connection resumption request is used for RNA update.

[0074] S12. The target base station sends a RETRIEVE UE CONTEXT REQUEST to the anchor base station (also referred to as the last serving base station (Last ServinggNB)).

[0075] S13. The anchor base station sends a RETRIEVE UE CONTEXTRESPONSE response to the target base station.

[0076] S14. Set the UE to inactive state (Send UE to INACTIVE);

[0077] S15. The target base station sends a data forwarding address indication (DATA FORWARDING ADDRESS INDICATION) to the anchor base station (optionally);

[0078] S16. The target base station sends a path switching request to the access and mobility management function (Access and Mobility Management Function, AMF) entity;

[0079] S17. The AMF entity sends a path switching response to the target base station;

[0080] S18. The target base station sends an RRC release message to the terminal device;

[0081] S19. The target base station sends a UE context release message to the anchor base station.

[0082] For example, Figure 5 As shown, RNAU without context migration is implemented according to the process described in S21 to S24 below.

[0083] S21. The terminal device (UE) sends an RRC connection resumption request (Resume Request) to the target base station (gNB). The RRC connection resumption request is used for RNA update.

[0084] S22. The target base station sends a RETRIEVE UE CONTEXT REQUEST to the anchor base station (also referred to as the last serving base station (Last ServinggNB)).

[0085] S23. The anchor base station sends a message that the UE context has failed to be extracted (RETRIEVE UE CONTEXTFAILURE) to the target base station.

[0086] S24. The target base station sends an RRC release message to the terminal device.

[0087] In LTE, early data transmission (EDT) is introduced. During this process, the terminal device may always remain in the idle state, suspended state, or inactive state to complete the transmission of small uplink and / or downlink data packets. For example, Figure 6 As shown, the user plane data transmission solution can be specifically implemented by the process described in the following S31 to S38.

[0088] S31. The UE sends an RRC connection resumption request (Resume Request) to the eNB. The RRC connection resumption request includes uplink data sent by the UE (i.e., small data transmission);

[0089] S32. The eNB sends a UE CONTEXT RESUME REQUEST to the Mobility Management Entity (MME);

[0090] S33. Modify the bearer between the MME and the serving gateway (Serving Gateway, SGW);

[0091] S34. The MME sends a UE CONTEXT RESUME RESPONSE to the eNB.

[0092] S35. The eNB sends the uplink data sent by the UE (i.e., small data transmission) to the SGW;

[0093] S36. The SGW receives downlink data sent by the eNB (optional);

[0094] S37 suspends the process between the eNB and SGW, and modifies the bearer between the MME and SGW;

[0095] S38. The eNB sends an RRC connection release message to the UE. Optionally, the RRC connection release message includes downlink data.

[0096] It should be noted that for small data transmission, the UE actually completes the transmission of small data packets without entering the connected state. This type of transmission is different from entering the connected state to transmit Mobile Broadband (MBB) services.

[0097] During uplink small data transmission (UP-EDT), the UE will still perform the cell reselection process. That is, if the signal quality of the current serving cell deteriorates to the point where it meets the conditions for reselecting to another cell, the UE will perform the cell reselection process. If the cell reselection process occurs during UP-EDT, the UE will terminate the ongoing UP-EDT process. For a UE in the RRC Inactive state, if a cell reselection occurs during the RRC recovery process, the UE needs to enter the RRC Idle state.

[0098] In LTE Release 16, a method for using preconfigured uplink resources (PUR) for data transmission in the idle state was introduced for narrowband Internet of Things (NB-IoT) and enhanced machine type of communication (eMTC) scenarios. PUR is only valid in the UE's serving cell or the cell it is currently residing in. When the UE detects a cell change and initiates random access in the new cell, the UE needs to release the PUR configured in the original cell. The PUR transmission process is similar to LTE UP-EDT, except that the process of sending the random access preamble to obtain the time advance (TA) and uplink grant (UL grant) is omitted.

[0099] Although the LTE system supports small packet data transmission, it is used in specific scenarios, such as non-networked terminals. The services of such terminals themselves are all small in data volume, so the small packet data transmission in the LTE system only supports the data transmission of one data packet.

[0100] In the NR system, small packet data transmission in the RRC_INACTIVE state is supported, and there are multiple small packet data transmissions, and the UE is mobile. In this case, uplink power control to ensure reliable and interference-free transmission of uplink data is an urgent problem to be solved.

[0101] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0102] Figure 7 This is a schematic interactive diagram of a power control method 200 provided in an embodiment of the present application. Figure 7 As shown, the method 200 may include at least part of the following:

[0103] S210, the terminal device receives a power control parameter for inactive data transmission sent by the network device;

[0104] S220, the terminal device determines a target transmit power for inactive data transmission according to the power control parameter.

[0105] Optionally, in some embodiments, the method 200 further includes:

[0106] S230, the terminal device sends an uplink data packet to the network device at the target transmission power.

[0107] Correspondingly, the network device receives the uplink data packet sent by the terminal device at the target transmission power.

[0108] Optionally, the power control parameter may be sent by the network device to the terminal device when the terminal device is in the RRC_CONNECTED state, so that the terminal device determines the transmit power for inactive data transmission according to the power control parameter after entering the RRC_INACTIVE state, thereby reducing the interference of inactive data transmission on other data transmissions.

[0109] Optionally, in some embodiments of the present application, the inactive data transmission may be data transmission based on PUR, or data transmission based on a random access process. For specific implementation, please refer to the relevant description of the aforementioned embodiments and will not be repeated here.

[0110] Optionally, the power control parameter may be sent via a first message. Optionally, the first message may be any downlink message, such as an RRC message, a Media Access Control Control Element (MAC CE), or downlink control information (DCI).

[0111] Optionally, in some embodiments, the power control parameter may be sent via an RRC connection release message. For example, a new information field may be added to the RRC connection release message to carry the power control parameter corresponding to the inactive data transmission.

[0112] Optionally, in some other embodiments, the power control parameter may be sent via a broadcast message.

[0113] Optionally, in some embodiments, the power control parameter may be used for transmission of an inactive uplink data channel, or may also be used for transmission of an inactive uplink control channel.

[0114] Optionally, the uplink data channel may include, for example, a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

[0115] Optionally, the uplink control channel may include, for example, a physical uplink control channel (Physical Uplink Control Channel, PUCCH).

[0116] Optionally, in some embodiments, the network device may configure a set of power control parameters for the transmission of an inactive uplink data channel and an uplink control channel, or the network device may configure two sets of power control parameters, one for the transmission of an inactive uplink data channel and the other for the transmission of an uplink control channel, which is not limited in this application.

[0117] That is, the transmission of the inactive uplink data channel and the uplink control channel may correspond to the same power control parameter or different power control parameters.

[0118] Optionally, in some embodiments, the power control parameters may include parameters for open-loop power control, or may also include parameters for closed-loop power control.

[0119] Embodiment One

[0120] The power control parameter comprises at least one of the following:

[0121] First identification information, the first identification information being used for the terminal device to receive downlink control information (DCI) carrying a power control command;

[0122] First indication information, used for indicating a position of the power control command in the DCI;

[0123] Initial transmission power;

[0124] Target reception power expected by the network device.

[0125] The embodiment one can be an implementation manner of a closed-loop power control parameter.

[0126] In the embodiments of the present application, the power control command is also referred to as a transmission power control (TPC) command.

[0127] Optionally, in the embodiment one, the network device can further configure a resource for non-active data transmission, for example, a PUR resource or a CG resource, to the terminal device.

[0128] Optionally, in some embodiments, the initial transmission power and the target reception power expected by the network device can be configured alternatively.

[0129] For example, the power control parameter comprises the initial transmission power but does not comprise the target reception power expected by the network device, in which case, the terminal device can take the initial transmission power as the target transmission power of the first uplink data packet in the non-active data transmission process.

[0130] For another example, the power control parameter comprises the target reception power expected by the network device but does not comprise the initial transmission power, in which case, the terminal device can determine the target transmission power of the first uplink data packet in the non-active data transmission process according to the target reception power expected by the network device. For example, the terminal device can determine the target transmission power of the first uplink data packet according to the target reception power expected by the network device and current path loss.

[0131] It should be understood that, in the embodiments of the present application, the terminal device determines the target transmission power according to the target reception power expected by the network device and the path loss, which means that the terminal device determines the target transmission power at least according to these two parameters, and in some cases, other power factors also need to be combined, and the relationship between the other power factors and the target reception power and the path loss can be linear superposition or a nonlinear relationship, and the like in other embodiments.

[0132] Optionally, in the embodiment of the present application, the path loss of the terminal device may include an uplink path loss.

[0133] It is understood that when a terminal device moves, the path loss of the terminal device may vary. Determining the target transmit power based on the current path loss of the terminal device is beneficial for ensuring reliable transmission of uplink data and also helps avoid interference with other transmissions.

[0134] Optionally, if the power control parameter includes both the initial transmit power and the target receive power expected by the network device, in this case, the target transmit power for the first uplink data packet used in the inactive data transmission process can be determined based on the initial transmit power or the target receive power. This application does not limit this. The specific implementation method of determining the target transmit power of the first uplink data packet based on the initial transmit power or the target receive power refers to the relevant description of the aforementioned embodiment and will not be repeated here.

[0135] Optionally, in some embodiments, the first identification information is used by the terminal device to receive the DCI carrying the power control command, that is, the first identification information can be the identification information of the terminal device, used to identify that the power control command carried by the DCI is used to perform power control on the terminal device.

[0136] As an example, the first identification information includes a Radio Network Temporary Identity (RNTI) corresponding to the terminal device.

[0137] For example, the terminal device may monitor the DCI encrypted by the RNTI corresponding to the terminal device and obtain the power control command carried in the DCI.

[0138] Optionally, in some embodiments, the network device may also send a power control command to the terminal device in the inactive state to perform closed power control on the terminal device in the inactive state.

[0139] Optionally, the first indication information is used to indicate a position of the power control command in the DCI, so that the terminal device can obtain the power control command in the DCI according to the first indication information.

[0140] Optionally, in some embodiments, the first identification information may be sent via an RRC release message.

[0141] Optionally, in some embodiments, the first indication information may be sent via an RRC release message.

[0142] Optionally, in some embodiments, the initial transmit power may be sent via an RRC release message or a broadcast message, that is, the initial transmit power may be UE-specific or configured per cell.

[0143] Optionally, in some embodiments, the target received power expected by the network device may be sent via an RRC release message or a broadcast message, that is, the target received power may be UE-specific or configured per cell.

[0144] In the first embodiment, the step S220 further includes:

[0145] The terminal device monitors DCI according to the first identification information;

[0146] Obtaining the power control command from the DCI;

[0147] A target transmit power of a Kth data packet in inactive data transmission is determined according to the power control command, wherein K is a positive integer greater than or equal to 2.

[0148] That is, in this embodiment 1, the transmit power of the first uplink data packet can be determined according to the initial transmit power or the target receive power expected by the network device, and the transmit power of subsequent uplink data packets can be determined according to the power control command of the network device.

[0149] Optionally, in some embodiments, the power control command includes a power adjustment amount, and the power adjustment amount may be an adjustment amount relative to the currently used transmit power. For example, if the data packet to be sent is the Kth data packet, the currently used transmit power may be the transmit power used to transmit the K-1th data packet.

[0150] For example, the transmission power used by the terminal device to transmit the K-1th data packet is P1, and the power adjustment amount is X. Then the target transmission power used to transmit the Kth data packet is P2=P1+X.

[0151] Optionally, in some other embodiments, the power control command includes a power adjustment amount, and the power adjustment amount may be an adjustment amount relative to a target receive power expected by the network device.

[0152] For example, the target receiving power expected by the network device is P0, and the power adjustment amount is Y. Then, the target transmitting power used to transmit the Kth data packet is P2=P0+Y.

[0153] Optionally, in some other embodiments, the power control command includes a target transmit power. In this case, the terminal device may use the target transmit power as the target transmit power corresponding to the Kth data packet.

[0154] Combine Figure 8 Specific examples are shown.

[0155] The first data packet can be transmitted at the initial transmission power. If a power control command is received before the second data packet is transmitted, in this case, the target transmission power of the second data packet can be determined based on the power adjustment amount in the power control command. The transmission of subsequent data packets is similar and will not be repeated here.

[0156] Example 2

[0157] As an example, the power control parameter includes a target receiving power expected by the network device.

[0158] The second embodiment may be a way to implement open-loop power control parameters.

[0159] Optionally, in this second embodiment, the network device may further configure resources for inactive data transmission, such as PUR resources or CG resources, for the terminal device.

[0160] Optionally, the target received power expected by the network device is released via an RRC message; or

[0161] The target received power expected by the network device is configured through a broadcast message.

[0162] As an implementation manner, the terminal device may determine the target transmit power of each data packet in the inactive state data transmission according to the target receive power expected by the network device and the path loss of the terminal device.

[0163] For example, Figure 9 As shown, the target transmit power corresponding to each data packet can be determined based on the target receive power, current path loss and other power control factors.

[0164] Since the terminal device is mobile, the current path loss of the terminal device may also change in different time periods. Therefore, the target transmit power determined according to this implementation manner may also be different.

[0165] As another implementation, the terminal device determines the target transmit power for the first data packet in the inactive data transmission according to the target receive power expected by the network device and the path loss of the terminal device.

[0166] That is, the transmission power of the first uplink data packet can be determined according to the initial transmission power or the target reception power expected by the network device, and the transmission power of subsequent uplink data packets can be determined according to whether a power control command from the network device is received.

[0167] Optionally, in some embodiments, the terminal device may adjust the target receive power according to the power control command. Further, the target transmit power may be determined according to the adjusted target receive power and the current path loss.

[0168] Optionally, in some embodiments, if the terminal device has not received the power control command of the network device before sending the Kth data packet, the target receiving power currently used by the terminal device is the target receiving power expected by the network device.

[0169] In some embodiments, the terminal device can determine the target transmission power for the Kth data packet based on the power control parameters and whether the power control command of the network device is received before sending the Kth data packet in the inactive data transmission, where K is a positive integer greater than or equal to 2.

[0170] As Example 1, if the power control command of the network device is not received within the first time period T before sending the Kth data packet, the target transmission power for the Kth data packet is determined based on the target receiving power currently used by the terminal device and the path loss of the terminal device.

[0171] As Example 2, if the power control command of the network device is not received within the first time period before sending the Kth data packet, the target transmission power for the Kth data packet is determined based on the target receiving power expected by the network device and the path loss of the terminal device.

[0172] For example, if the terminal device does not receive a power control command before 2T before sending the Kth data packet, and receives a first power control command within the time period from 2T to T before sending the Kth data packet, the first power control command includes a first power adjustment amount, and the target receiving power is updated to P0' based on the first power adjustment amount and the target receiving power P0 expected by the network device, that is, the currently used target receiving power is P0'.

[0173] In this case, for Example 1, if no power control command is received within the first duration T before the Kth data packet is sent, the target transmit power corresponding to the Kth data packet can be determined based on the currently used target receive power P0' and the current path loss. For Example 2, if no power control command is received within the first duration T before the Kth data packet is sent, the target transmit power corresponding to the Kth data packet can be determined based on the target receive power P0 expected by the network device and the current path loss.

[0174] For another example, if the terminal device does not receive a power control command before sending the Kth data packet, the target receiving power currently used is the target receiving power P0 expected by the network device.

[0175] In this case, for Example 1, if no power control command is received within the first duration T before the Kth data packet is sent, the target transmit power corresponding to the Kth data packet can be determined based on the currently used target receive power, that is, the target receive power P0 expected by the network device, and the current path loss. For Example 2, if no power control command is received within the first duration T before the Kth data packet is sent, the target transmit power corresponding to the Kth data packet can be determined based on the target receive power P0 expected by the network device and the current path loss.

[0176] As Example 3, if a power control command of the network device is received within the first time period before sending the Kth data packet, the target transmission power for the Kth data packet is determined based on the first target receiving power and the power control command, and the first target receiving power is the target receiving power currently used by the terminal device.

[0177] For example, if the terminal device does not receive a power control command before 2T before sending the Kth data packet, and receives a first power control command within the time period from 2T to T before sending the Kth data packet, the first power control command includes a first power adjustment amount, and the target receiving power is updated to P0' based on the first power adjustment amount and the target receiving power P0 expected by the network device, that is, the currently used target receiving power is P0'.

[0178] In this case, for Example 3, if a second power control command is received within the first time period T before sending the Kth data packet, and the second power control command includes a second power adjustment amount, the target receiving power can be adjusted to P0" based on the currently used target receiving power P0' and the second power adjustment amount. Furthermore, the target transmission power corresponding to the Kth data packet can be determined based on the adjusted target receiving power P0" and the current path loss.

[0179] For another example, if the terminal device does not receive a power control command before sending the Kth data packet, the target receiving power currently used is the target receiving power P0 expected by the network device.

[0180] In this case, for Example 3, if a second power control command is received within the first time period T before sending the Kth data packet, and the second power control command includes a second power adjustment amount, the target receiving power can be adjusted based on the currently used target receiving power P0 and the second power adjustment amount. Furthermore, the target transmission power corresponding to the Kth data packet can be determined based on the adjusted target receiving power and the current path loss.

[0181] Optionally, in some embodiments, the first duration is configured by the network device or is predefined.

[0182] Optionally, in some embodiments, the power control command is carried in a retransmission scheduling DCI corresponding to a first data packet, and the first data packet includes at least one of the N data packets before the Kth data packet in the inactive data transmission, where N is a positive integer.

[0183] Optionally, N is configured by the network device or is predefined.

[0184] As an example, if the terminal device does not receive the retransmission scheduling of any of the N data packets before the Kth data packet before sending the Kth data packet, the terminal device can determine the target transmission power of the Kth data packet based on the currently used target reception power or the target reception power expected by the network device.

[0185] As another example, if the terminal device receives a retransmission schedule for the first data packet among the N data packets before the Kth data packet before sending the Kth data packet, and the retransmission schedule includes a power control command, and the power control command includes a power adjustment amount, then the terminal device can adjust the target receiving power according to the currently used target receiving power and the power adjustment amount. Further, the target transmission power corresponding to the Kth data packet can be determined based on the adjusted target receiving power and the current path loss.

[0186] As another example, if the terminal device receives a retransmission schedule for the first data packet among the N data packets before the Kth data packet before sending the Kth data packet, and the retransmission schedule includes a power control command, and the power control command includes a power adjustment amount, then the terminal device can adjust the target receiving power according to the target receiving power expected by the network device and the power adjustment amount. Furthermore, the target transmission power corresponding to the Kth data packet can be determined based on the adjusted target receiving power and the current path loss.

[0187] That is, the power adjustment amount in the power control command may be an adjustment amount relative to the currently used target receive power, or may be an adjustment amount relative to the target receive power expected by the network device.

[0188] Combine Figure 10 Give an example.

[0189] The terminal device can determine the transmission power of the first data packet in the inactive data transmission based on the target receiving power P0 expected by the network device, the current path loss and other power control factors.

[0190] Furthermore, if a retransmission scheduling DCI for the first data packet is received, the retransmission scheduling DCI includes a power adjustment amount. The terminal device can adjust the target receiving power to P0' based on the target receiving power expected by the network device and the power adjustment amount. Furthermore, the target transmission power corresponding to the second data packet can be determined based on the adjusted target receiving power P0', the current path loss and other power control factors.

[0191] Furthermore, if a retransmission scheduling DCI for the second data packet is received, the retransmission scheduling DCI includes a power adjustment amount. The terminal device can adjust the target receiving power to P0", based on the currently used target receiving power P0' and the power adjustment amount. Furthermore, the target transmission power corresponding to the third data packet can be determined based on the adjusted target receiving power P0", the current path loss and other power control factors.

[0192] In summary, the network device can configure power control parameters for non-activated data transmission for the terminal device, such as open-loop power control parameters or closed-loop power control parameters, so that after the terminal device enters the non-activated state, it can perform non-activated data transmission based on the power control parameters, which is conducive to ensuring the reliability of non-activated data transmission and can reduce interference with other data transmission.

[0193] Combined with the above Figures 7 to 10 , describes the method embodiment of the present application in detail, and the following is combined with Figures 11 to 14 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0194] Figure 11 FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Figure 11 As shown, the terminal device 400 includes:

[0195] The communication unit 410 is configured to receive a power control parameter for inactive data transmission sent by a network device;

[0196] The processing unit 420 is configured to determine a target transmit power for inactive data transmission according to the power control parameter.

[0197] Optionally, in some embodiments, the power control parameter includes at least one of the following:

[0198] First identification information, where the first identification information is used by the terminal device to receive downlink control information DCI carrying a power control command;

[0199] First indication information, used to indicate the position of the power control command in the DCI;

[0200] Initial transmit power;

[0201] The target received power expected by the network device.

[0202] Optionally, in some embodiments, the first identification information includes a radio network temporary identifier RNTI corresponding to the terminal device.

[0203] Optionally, in some embodiments, the power control parameter is sent via a radio resource control RRC release message.

[0204] Optionally, in some embodiments, the initial transmit power is sent via a broadcast message; and / or

[0205] The target received power expected by the network device is sent via a broadcast message.

[0206] Optionally, in some embodiments, the processing unit 420 is specifically configured to:

[0207] The initial transmit power is used as the target transmit power of the first data packet in the inactive state data transmission.

[0208] Optionally, in some embodiments, the processing unit 420 is specifically configured to:

[0209] The target transmission power of the first data packet used for inactive data transmission is determined based on the target reception power expected by the network device and the path loss of the terminal device.

[0210] Optionally, in some embodiments, the processing unit 420 is further configured to:

[0211] The terminal device monitors DCI according to the first identification information;

[0212] Obtaining the power control command from the DCI;

[0213] A target transmit power of a Kth data packet in inactive data transmission is determined according to the power control command, wherein K is a positive integer greater than or equal to 2.

[0214] Optionally, in some embodiments, the power control command includes a power adjustment amount, and the target transmission power for the Kth data packet is determined based on the first transmission power and the power adjustment amount, wherein the first transmission power is the transmission power used by the terminal device to transmit the K-1th data packet in non-activated data transmission.

[0215] Optionally, in some embodiments, the power control parameter includes a target receiving power expected by the network device.

[0216] Optionally, in some embodiments, the target received power expected by the network device is released via an RRC message; or

[0217] The target received power expected by the network device is configured through a broadcast message.

[0218] Optionally, in some embodiments, the processing unit 420 is specifically configured to:

[0219] The target transmission power of each data packet used in the inactive state data transmission is determined based on the target reception power expected by the network device and the path loss of the terminal device.

[0220] Optionally, in some embodiments, the processing unit 420 is specifically configured to:

[0221] The target transmission power of the first data packet used for inactive data transmission is determined based on the target reception power expected by the network device and the path loss of the terminal device.

[0222] Optionally, in some embodiments, the processing unit 420 is further configured to:

[0223] The target transmission power for the Kth data packet is determined based on the power control parameter and whether a power control command of the network device is received before sending the Kth data packet in the inactive data transmission, wherein K is a positive integer greater than or equal to 2.

[0224] Optionally, in some embodiments, the processing unit 420 is specifically configured to:

[0225] If no power control command of the network device is received within a first time period before sending the K-th data packet, determining a target transmit power for the K-th data packet based on the target receive power currently used by the terminal device and the path loss of the terminal device; or

[0226] If no power control command of the network device is received within a first time period before sending the K-th data packet, determining a target transmit power for the K-th data packet based on a target receive power expected by the network device and a path loss of the terminal device; or

[0227] If a power control command of the network device is received within the first time period before sending the Kth data packet, the target transmission power for the Kth data packet is determined based on the first target receiving power and the power control command, and the first target receiving power is the target receiving power currently used by the terminal device.

[0228] Optionally, in some embodiments, if the terminal device has not received a power control command from the network device before sending the Kth data packet, the target receiving power currently used by the terminal device is the target receiving power expected by the network device.

[0229] Optionally, in some embodiments, the power control command includes a power adjustment amount, and the processing unit 420 is further configured to:

[0230] Adjusting the target received power currently used by the terminal device according to the first target received power and the power adjustment amount;

[0231] The target transmission power for the Kth data packet is determined based on the adjusted target receiving power and the path loss of the terminal device.

[0232] Optionally, in some embodiments, the first duration is configured by the network device or is predefined.

[0233] Optionally, in some embodiments, the power control command is carried in a retransmission scheduling DCI corresponding to a first data packet, and the first data packet includes at least one of the N data packets before the Kth data packet in the inactive data transmission, where N is a positive integer.

[0234] Optionally, in some embodiments, N is configured by the network device or is predefined.

[0235] Optionally, in some embodiments, the communication module may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The determination module may be one or more processors.

[0236] It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively to achieve Figure 7For the sake of brevity, the corresponding processes of the terminal device in the method 200 are not repeated here.

[0237] Figure 12 FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. Figure 12 As shown, the network device 500 includes:

[0238] The communication unit 510 is configured to send power control parameters for inactive data transmission to the terminal device.

[0239] Optionally, in some embodiments, the power control parameter includes at least one of the following:

[0240] First identification information, where the first identification information is used by the terminal device to receive downlink control information DCI carrying a power control command;

[0241] First indication information, used to indicate the position of the power control command in the DCI;

[0242] Initial transmit power;

[0243] The target received power expected by the network device.

[0244] Optionally, in some embodiments, the first identification information includes a radio network temporary identifier RNTI corresponding to the terminal device.

[0245] Optionally, in some embodiments, the power control parameter is sent via an RRC release message.

[0246] Optionally, in some embodiments, the initial transmit power is sent via a broadcast message; and / or

[0247] The target received power expected by the network device is sent via a broadcast message.

[0248] Optionally, in some embodiments, the communication module may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The determination module may be one or more processors.

[0249] It should be understood that the network device 500 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and / or functions of each unit in the network device 500 are respectively to achieve Figure 7 For the sake of brevity, the corresponding processes of the network device in the method 200 are not described here in detail.

[0250] Figure 13 It is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. Figure 13The communication device 600 shown includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0251] Alternatively, as Figure 13 As shown, the communication device 600 may further include a memory 620. The processor 610 may call and execute a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0252] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0253] Alternatively, as Figure 13 As shown, the communication device 600 may further include a transceiver 630 , and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0254] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

[0255] Optionally, the communication device 600 may specifically be a network device in an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0256] Optionally, the communication device 600 may specifically be a mobile terminal / terminal device in an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0257] Figure 14 It is a schematic structural diagram of the chip of an embodiment of the present application. Figure 14 The chip 700 shown includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0258] Alternatively, as Figure 14 As shown, the chip 700 may further include a memory 720. The processor 710 may call and execute a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0259] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0260] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0261] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0262] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0263] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0264] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0265] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0266] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0267] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0268] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0269] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0270] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0271] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0272] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0273] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0274] The embodiment of the present application also provides a computer program.

[0275] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0276] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0277] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0278] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0279] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0280] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0281] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0282] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0283] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A power control method, characterized in that: include: The terminal device receives a power control parameter for inactive data transmission sent by the network device; The terminal device determines a target transmit power for inactive data transmission according to the power control parameter; The power control parameter is sent by the network device to the terminal device when the terminal device is in the RRC_CONNECTED state, and the terminal device determines the target transmit power for inactive data transmission according to the power control parameter after entering the RRC_INACTIVE state; The power control parameters include: First identification information, where the first identification information is used by the terminal device to receive downlink control information DCI carrying a power control command; First indication information, used to indicate the position of the power control command in the DCI; and The target received power expected by the network device; The terminal device determines the target transmit power for inactive data transmission according to the power control parameter, including: The terminal device determines, based on the target receive power expected by the network device and the path loss of the terminal device, a target transmit power for a first data packet in an inactive data transmission; The terminal device monitors DCI according to the first identification information; Obtaining the power control command from the DCI according to the first indication information; A target transmit power of a Kth data packet in inactive data transmission is determined according to the power control command, wherein K is a positive integer greater than or equal to 2.

2. The method according to claim 1, characterized in that The power control parameters also include: Initial transmit power.

3. The method according to claim 2, characterized in that The first identification information includes the wireless network temporary identification RNTI corresponding to the terminal device.

4. The method according to claim 2, characterized in that The power control parameter is sent via a radio resource control RRC release message.

5. The method according to claim 2, characterized in that The initial transmit power is sent via a broadcast message; and / or The target received power expected by the network device is sent via a broadcast message.

6. The method according to any one of claims 2 to 5, characterized in that The terminal device determines a target transmit power for inactive data transmission according to the power control parameter, further comprising: The terminal device uses the initial transmission power as the target transmission power of the first data packet in the inactive state data transmission.

7. The method according to claim 1, characterized in that The power control command includes a power adjustment amount, and the target transmission power for the Kth data packet is determined based on the first transmission power and the power adjustment amount, wherein the first transmission power is the transmission power used by the terminal device to transmit the K-1th data packet in non-activated data transmission.

8. The method according to claim 1, characterized in that The target received power expected by the network device is determined via an RRC release message; or The target received power expected by the network device is configured through a broadcast message.

9. The method according to claim 1, characterized in that The terminal device determines a target transmit power for inactive data transmission according to the power control parameter, further comprising: The terminal device determines the target transmission power for each data packet in the inactive state data transmission based on the target reception power expected by the network device and the path loss of the terminal device.

10. The method according to claim 1, characterized in that The terminal device determines, according to the power control parameter, a target transmit power for inactive data transmission, including: The terminal device determines the target transmission power for the first data packet in the inactive state data transmission based on the target reception power expected by the network device and the path loss of the terminal device.

11. The method according to claim 1, wherein The terminal device determines, according to the power control parameter, a target transmit power for inactive data transmission, including: The target transmission power for the Kth data packet is determined based on the power control parameter and whether a power control command of the network device is received before sending the Kth data packet in the inactive data transmission, wherein K is a positive integer greater than or equal to 2.

12. The method according to claim 11, characterized in that The determining, based on the power control parameter and whether a power control command of the network device is received before sending the K-th data packet, a target transmit power of the K-th data packet includes: If no power control command of the network device is received within a first time period before sending the K-th data packet, determining a target transmit power for the K-th data packet based on a first target receive power and a path loss of the terminal device, the first target receive power being the target receive power currently used by the terminal device; or If no power control command of the network device is received within a first time period before sending the K-th data packet, determining a target transmit power for the K-th data packet based on a target receive power expected by the network device and a path loss of the terminal device; or If a power control command of the network device is received within the first time period before sending the Kth data packet, the target transmission power for the Kth data packet is determined based on the first target receiving power and the power control command, and the first target receiving power is the target receiving power currently used by the terminal device.

13. The method according to claim 12, characterized in that If the terminal device has not received the power control command of the network device before sending the Kth data packet, the target receiving power currently used by the terminal device is the target receiving power expected by the network device.

14. The method according to claim 12, characterized in that The power control command includes a power adjustment amount, and determining a target transmit power for the K-th data packet according to the first target receive power and the power control command includes: Adjusting the target received power currently used by the terminal device according to the first target received power and the power adjustment amount; The target transmission power for the Kth data packet is determined based on the adjusted target receiving power and the path loss of the terminal device.

15. The method according to any one of claims 12 to 14, characterized in that The first duration is configured by the network device or is predefined.

16. The method according to any one of claims 11 to 14, characterized in that The power control command is carried in a retransmission scheduling DCI corresponding to a first data packet, where the first data packet includes at least one of N data packets before the Kth data packet in the inactive data transmission, where N is a positive integer.

17. The method according to claim 16, characterized in that The N is configured by the network device or is predefined.

18. A power control method, characterized in that: include: The network device sends a power control parameter for inactive data transmission to the terminal device; The power control parameter is sent by the network device to the terminal device when the terminal device is in the RRC_CONNECTED state, so that the terminal device determines the target transmit power for inactive data transmission according to the power control parameter after entering the RRC_INACTIVE state; The power control parameters include: First identification information, where the first identification information is used by the terminal device to receive downlink control information DCI carrying a power control command; First indication information, used to indicate the position of the power control command in the DCI; and The target received power expected by the network device; The target received power expected by the network device is used by the terminal device to determine the target transmit power for the first data packet in the inactive state data transmission according to the target received power expected by the network device and the path loss of the terminal device; The first identification information is used for the terminal device to monitor the DCI according to the first identification information, and the first indication information is used for the terminal device to obtain the power control command from the DCI, so that the terminal device determines the target transmission power of the Kth data packet in the non-activated data transmission according to the power control command, wherein K is a positive integer greater than or equal to 2.

19. The method according to claim 18, characterized in that The power control parameters also include: Initial transmit power.

20. The method according to claim 19, characterized in that The first identification information includes the wireless network temporary identification RNTI corresponding to the terminal device.

21. The method according to claim 19 or 20, characterized in that The power control parameter is sent via an RRC release message.

22. The method according to claim 19 or 20, characterized in that The initial transmit power is sent via a broadcast message; and / or The target received power expected by the network device is sent via a broadcast message.

23. A terminal device, characterized in that: include: a communication unit, configured to receive a power control parameter for inactive data transmission sent by a network device; a processing unit, configured to determine a target transmit power for inactive data transmission according to the power control parameter; The power control parameter is sent by the network device to the terminal device when the terminal device is in the RRC_CONNECTED state, and the processing unit of the terminal device determines the target transmit power for inactive data transmission according to the power control parameter after entering the RRC_INACTIVE state; The power control parameters include: First identification information, where the first identification information is used by the terminal device to receive downlink control information DCI carrying a power control command; First indication information, used to indicate the position of the power control command in the DCI; and The target received power expected by the network device; The processing unit is specifically configured to: Determining a target transmit power for a first data packet in an inactive data transmission according to a target receive power expected by the network device and a path loss of the terminal device; monitoring DCI according to the first identification information; Obtaining the power control command from the DCI according to the first indication information; A target transmit power of a Kth data packet in inactive data transmission is determined according to the power control command, wherein K is a positive integer greater than or equal to 2.

24. The terminal device according to claim 23, characterized in that The power control parameters also include: Initial transmit power.

25. The terminal device according to claim 24, characterized in that The first identification information includes the wireless network temporary identification RNTI corresponding to the terminal device.

26. The terminal device according to claim 24, characterized in that The power control parameter is sent via a radio resource control RRC release message.

27. The terminal device according to claim 24, characterized in that The initial transmit power is sent via a broadcast message; and / or The target received power expected by the network device is sent via a broadcast message.

28. The terminal device according to any one of claims 24 to 27, characterized in that: The processing unit is further specifically configured to: The initial transmit power is used as the target transmit power of the first data packet in the inactive state data transmission.

29. The terminal device according to claim 23, characterized in that The power control command includes a power adjustment amount, and the target transmission power for the Kth data packet is determined based on the first transmission power and the power adjustment amount, wherein the first transmission power is the transmission power used by the terminal device to transmit the K-1th data packet in non-activated data transmission.

30. The terminal device according to claim 23, characterized in that The target received power expected by the network device is determined via an RRC release message; or The target received power expected by the network device is configured through a broadcast message.

31. The terminal device according to claim 23, characterized in that The processing unit is further specifically configured to: The target transmission power of each data packet used in the inactive state data transmission is determined based on the target reception power expected by the network device and the path loss of the terminal device.

32. The terminal device according to claim 23, characterized in that The processing unit is further specifically configured to: The target transmission power of the first data packet used for inactive data transmission is determined based on the target reception power expected by the network device and the path loss of the terminal device.

33. The terminal device according to claim 23, characterized in that The processing unit is further configured to: The target transmission power for the Kth data packet is determined based on the power control parameter and whether a power control command of the network device is received before sending the Kth data packet in the inactive data transmission, wherein K is a positive integer greater than or equal to 2.

34. The terminal device according to claim 33, characterized in that The processing unit is specifically configured to: If no power control command of the network device is received within a first time period before sending the K-th data packet, determining a target transmit power for the K-th data packet according to a first target receive power and a path loss of the terminal device, where the first target receive power is the target receive power currently used by the terminal device; or If no power control command of the network device is received within a first time period before sending the K-th data packet, determining a target transmit power for the K-th data packet according to a target receive power expected by the network device and a path loss of the terminal device; or If a power control command of the network device is received within the first time period before sending the Kth data packet, the target transmission power for the Kth data packet is determined based on the first target receiving power and the power control command, and the first target receiving power is the target receiving power currently used by the terminal device.

35. The terminal device according to claim 34, characterized in that If the terminal device has not received the power control command of the network device before sending the Kth data packet, the target receiving power currently used by the terminal device is the target receiving power expected by the network device.

36. The terminal device according to claim 34, characterized in that The power control command includes a power adjustment amount, and the processing unit is further configured to: Adjusting the target received power currently used by the terminal device according to the first target received power and the power adjustment amount; The target transmission power for the Kth data packet is determined based on the adjusted target receiving power and the path loss of the terminal device.

37. The terminal device according to claim 34, characterized in that The first duration is configured by the network device or is predefined.

38. The terminal device according to any one of claims 34 to 37, characterized in that: The power control command is carried in a retransmission scheduling DCI corresponding to a first data packet, where the first data packet includes at least one of N data packets before the Kth data packet in the inactive data transmission, where N is a positive integer.

39. The terminal device according to claim 38, characterized in that The N is configured by the network device or is predefined.

40. A network device, characterized in that: include: a communication unit, configured to send a power control parameter for inactive data transmission to a terminal device; The power control parameter is sent to the terminal device by the communication unit when the terminal device is in the RRC_CONNECTED state, so that the terminal device determines the target transmit power for inactive data transmission according to the power control parameter after entering the RRC_INACTIVE state; The power control parameters include: First identification information, where the first identification information is used by the terminal device to receive downlink control information DCI carrying a power control command; First indication information, used to indicate the position of the power control command in the DCI; and The target received power expected by the network device; The target received power expected by the network device is used by the terminal device to determine the target transmit power for the first data packet in the inactive state data transmission according to the target received power expected by the network device and the path loss of the terminal device; The first identification information is used for the terminal device to monitor the DCI according to the first identification information, and the first indication information is used for the terminal device to obtain the power control command from the DCI, so that the terminal device determines the target transmission power of the Kth data packet in the non-activated data transmission according to the power control command, wherein K is a positive integer greater than or equal to 2.

41. The network device according to claim 40, wherein: The power control parameters also include: Initial transmit power.

42. The network device according to claim 41, wherein: The first identification information includes the wireless network temporary identification RNTI corresponding to the terminal device.

43. The network device according to claim 41 or 42, characterized in that: The power control parameter is sent via an RRC release message.

44. The network device according to claim 41 or 42, characterized in that The initial transmit power is sent via a broadcast message; and / or The target received power expected by the network device is sent via a broadcast message.

45. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 17.

46. ​​A chip, characterized in that include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 17.

47. A computer-readable storage medium, characterized in that Used to store a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 17.

48. A computer program product, characterized in that The method comprises computer program instructions for causing a computer to execute the method according to any one of claims 1 to 17.

49. A network device, characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 18 to 22.

50. A chip, characterized in that: include: A processor, configured to call and execute a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 18 to 22.

51. A computer-readable storage medium, characterized in that Used to store a computer program, the computer program causing a computer to execute the method according to any one of claims 18 to 22.

52. A computer program product, characterized in that The method comprises computer program instructions for causing a computer to perform the method as claimed in any one of claims 18 to 22.

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