CN116326177A - Power control method, terminal device and network device - Google Patents

Abstract

A method, terminal device and network device for power control, which are beneficial to ensuring reliable transmission of uplink data and reducing interference of inactive state data transmission, the method comprising: the terminal equipment receives a power control parameter for inactive state data transmission sent by the network equipment; and the terminal equipment determines target transmitting power for inactive state data transmission according to the power control parameter.

Description

Power control method, terminal device and network device technical field

The embodiments of the present application relate to the communication field, and in particular to a power control method, a terminal device, and a network device.

Background technique

Small-packet data transmission is supported in the Long Term Evolution (LTE) system, but small-packet data transmission in the LTE system is used in specific scenarios, such as terminal types without Internet access, and the services of such terminals themselves are all such data volumes Not big, so the small packet data transmission in the LTE system only supports the data transmission of one data packet.

In the NR system, small-packet data transmission in the inactive state is supported, and there are multiple small-packet data transmissions, and the terminal device can be moved. In this case, uplink power control is performed to ensure reliable transmission of uplink data and reduce inactivity The interference of state data transmission is an urgent problem to be solved.

Contents of the invention

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

In a first aspect, a power control method is provided, including: a terminal device receives a power control parameter sent by a network device for data transmission in an inactive state; The target transmit power for data transmission.

In a second aspect, a power control method is provided, including: a network device sends a power control parameter used for data transmission in an inactive state to a terminal device.

In a third aspect, a terminal device is provided, configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect. Specifically, the terminal device includes a unit configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, a network device is provided, configured to execute the method in the foregoing second aspect or any possible implementation manner of the second aspect. Specifically, the network device includes a unit configured to execute the method in the foregoing second aspect or any possible implementation manner of the second aspect.

According to a fifth aspect, a terminal device is provided, and the terminal device includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.

According to a sixth aspect, a network device is provided, and the network device includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.

In a seventh aspect, a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.

In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

In a ninth aspect, a computer program product is provided, including computer program instructions, the computer program instructions causing a computer to execute any one of the above first to second aspects or the method in each implementation manner thereof.

In a tenth aspect, a computer program is provided, which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.

Based on the above technical solution, the network device can configure the terminal device with power control parameters for data transmission in the inactive state, such as open-loop power control parameters or closed-loop power control parameters, so that after the terminal device enters the inactive state, it can be based on The power control parameter is used for data transmission in the inactive state, which is beneficial to ensure the reliability of data transmission in the inactive state, and can reduce interference to other data transmissions.

Description of drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by the present application.

Fig. 2 is a schematic diagram of a state transition of a terminal device provided by the present application.

Fig. 3 is a schematic diagram of an inactive state terminal device RNA provided by the present application.

Fig. 4 is a schematic flowchart of RNAU with context shift provided by the present application.

Fig. 5 is a schematic flowchart of RNAU without context transfer provided by the present application.

Fig. 6 is a schematic flowchart of a small data transmission provided by the present application.

Fig. 7 is a schematic interaction diagram of a power control method provided according to an embodiment of the present application.

8 to 10 are schematic diagrams of data transmission in an inactive state according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a network device provided according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of a chip provided according to an embodiment of the present application.

Detailed ways

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 part of the embodiments of the present application, but not all of the embodiments. With regard to the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced long term evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (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 may also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (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.

The terminal device can be a station (STATION, ST) in the WLAN, and can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future A terminal device and the like in an evolved public land mobile network (Public Land Mobile Network, PLMN) network.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).

In this embodiment of the application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal devices in industrial control, wireless terminal devices in self driving, wireless terminal devices in remote medical, wireless terminal devices in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.

As an example but not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, 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 clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In the embodiment of the present application, the network device may be a device used to communicate with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network The network equipment (gNB) in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.

As an example but not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network equipment may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc. Optionally, the network device may also be a base station installed on land, water, and other locations.

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

Exemplarily, a communication system 100 applied in this embodiment of the application is shown in FIG. 1 . The communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.

FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.

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 this embodiment of the present application.

It should be understood that a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.

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

In the RRC_IDLE state: mobility is cell selection and reselection based on terminal equipment, paging is initiated by the core network (Core Network, CN), and the paging area is configured by the CN. There is no access stratum (Access Stratum, AS) context of the terminal equipment on the base station side, and there is no RRC connection.

In the RRC_CONNECTED state: there is an RRC connection, and the base station and the terminal device have the terminal device AS context. The network device knows the location of the terminal device at the specific cell level. Mobility is mobility controlled by network devices. Unicast data can be transmitted between the terminal equipment and the base station.

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

It should be noted that, in the embodiment of the present application, the inactive state may also be referred to as the deactivated state, which is not limited in the present application.

The network device can control the state transition of the terminal device. For example, as shown in Figure 2, the terminal device in the RRC_CONNECTED state can enter the RRC_IDLE state by releasing the RRC connection; the 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 releasing the RRC connection with Suspend; a UE in the RRC_INACTIVE state can enter the RRC_CONNECTED state by resuming the RRC connection, or enter the RRC_IDLE state by releasing the RRC connection.

It should be noted that the terminal device is in the RRC_INACTIVE state, and the terminal device automatically returns to the idle state in the following situations:

When receiving the CN's initial paging message;

When initiating the RRC recovery request, start the timer T319, if the timer expires;

When contention-based random access message 4 (Message4, MSG4) integrity protection verification fails;

When the cell is reselected to other radio access technology (Radio Access Technology, RAT);

Enter the camp on any cell state.

Characteristics of the RRC_INACTIVE state:

The connection between RAN and CN is maintained;

The terminal device and at least one gNB save the AS context;

The terminal device is reachable to the RAN side, and the relevant parameters are configured by the RAN;

When the terminal device moves within the RAN Notification area (RAN Notification area, RNA) configured by the RAN, it does not need to notify the network side (core network device), but it needs to notify the network side (core network device) when moving out of the RNA;

The UE moves within the RNA according to the cell selection reselection method.

It should be noted that the RNA can be specifically shown in Figure 3. In the RNA shown in Figure 3, when the terminal device moves between base station 1 and base station 5, it is not necessary to notify the network side, Or the base station 7 needs to notify the network side.

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

When the terminal equipment moves in the RNA area, it does not need to notify the network side, and follows the mobility behavior in the idle (idle) state, that is, the cell selection reselection criterion. 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 reacquire the paging area configured by the RAN. When the terminal device has downlink data arriving, the gNB that maintains the connection between RAN and CN for the terminal device will trigger all cells in the RAN paging area to send paging messages to the terminal device, so that the terminal device in the INACTIVE state can restore the RRC connection, Perform data reception. A terminal device in the INACTIVE state is configured with a RAN paging area. In this area, in order to ensure the reachability of the terminal device, the terminal device needs to perform periodic location updates according to the period configured by the network.

Therefore, the scenario that triggers the terminal device to execute the RNA update is that the RAN Notification Area Update (RAN Notification Area Update, RNAU) timer expires or the UE moves to an area outside the RNA.

It should be noted that, when the target base station that the terminal device initiates the RRC connection recovery process is not an anchor base station, the anchor base station determines whether to transfer the context of the terminal device to the target base station. Therefore, the target base station will generally send the cause value (cause) carried in the RRC connection recovery request message initiated by the terminal device to the anchor base station during the context request process of the terminal device, and the anchor base station will decide whether to transfer the context of the terminal device to the target base station . For example, periodic RAN location update generally does not require context transfer.

For example, as shown in FIG. 4 , RNAU with context migration is specifically implemented through the processes described in S11 to S19 below.

S11. The terminal equipment (UE) sends an RRC connection recovery request (Resume Request) to the target base station (gNB), and the RRC connection recovery request is used for RNA update;

S12. The target base station sends a UE context extraction request (RETRIEVE UE CONTEXT REQUEST) to the anchor base station (also called the last serving base station (Last Serving gNB));

S13. The anchor base station sends a UE context retrieval response (RETRIEVE UE CONTEXT RESPONSE) to the target base station;

S14. Setting the UE to an inactive state (Send UE to INACTIVE);

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

S16. The target base station sends a path switching request to an Access and Mobility Management Function (AMF) entity;

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

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

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

For another example, as shown in FIG. 5 , the RNAU without context transfer is specifically implemented through the procedures described in S21 to S24 below.

S21. The terminal equipment (UE) sends an RRC connection recovery request (Resume Request) to the target base station (gNB), and the RRC connection recovery request is used for RNA update;

S22. The target base station sends a UE context extraction request (RETRIEVE UE CONTEXT REQUEST) to the anchor base station (also called the last serving base station (Last Serving gNB));

S23. The anchor base station sends UE context extraction failure (RETRIEVE UE CONTEXT FAILURE) to the target base station;

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

In LTE, a small data transmission (early data transmission, EDT) is introduced. During this process, the terminal device may always remain in the idle (idle) state, suspend (suspend) state or inactive (inactive) state to complete the uplink and/or the transmission of downlink small data packets. For example, as shown in FIG. 6 , the user plane data transmission solution may be specifically implemented through the procedures described in the following S31 to S38 .

S31. The UE sends an RRC connection recovery request (Resume Request) to the eNB, and the RRC connection recovery request includes the uplink data sent by the UE (that is, small data transmission);

S32. The eNB sends a UE context recovery request (UE CONTEXT RESUME REQUEST) to a mobility management entity (Mobility Management Entity, MME);

S33. Modify the bearer between the MME and the Serving Gateway (SGW);

S34. MME sends UE context recovery response (UE CONTEXT RESUME RESPONSE) to eNB;

S35. The eNB sends the uplink data sent by the UE to the SGW (that is, small data transmission);

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

S37. Suspend the process between the eNB and the SGW, and modify the bearer between the MME and the SGW;

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

It should be noted that for small data transmission, the UE completes the transmission of small data packets without actually entering the connection state, which is different from the transmission of Mobile Broadband (MBB) services in the connection state.

During the uplink small data transmission (UP-EDT) process, the UE will still perform the cell reselection process, that is, if the signal quality of the current serving cell deteriorates enough to meet the conditions for reselection to other cells, the UE will Execute the cell reselection process. If the cell reselection process occurs during the UP-EDT process, the UE will terminate the ongoing UP-EDT process. For a UE in the RRC inactive state, if the UE undergoes cell reselection during the RRC recovery process, the UE needs to enter the RRC idle state.

In LTE Release 16 (Release16), for narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) and enhanced machine type communication (enhanced machine type of communication, eMTC) scenarios, the use of pre-installation in idle (IDLE) state is introduced. A method for configuring an uplink resource (Preconfigured Uplink Resource, PUR) for data transmission. The PUR is only valid in the serving cell of the UE or the cell where the UE is currently camping. When the UE detects a change in the cell 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 the LTE UP-EDT, except that the process of sending a random access preamble to obtain a time advance (Time Advance, TA) and an uplink grant (UL grant) is omitted.

Although the LTE system supports small-packet data transmission, the small-packet data transmission in the LTE system is used for specific scenarios, such as terminal types without networking. The small packet data transmission in only supports the data transmission of one data packet.

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 can move. In this case, the uplink power control is performed so that the uplink data is reliable and does not cause interference. Transmission is a Urgent problems.

In order 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 examples. The following related technologies may be optionally combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them belong to the protection scope of the embodiments of the present application. The embodiment of the present application includes at least part of the following content.

FIG. 7 is a schematic interaction diagram of a power control method 200 provided in an embodiment of the present application. As shown in FIG. 7, the method 200 may include at least part of the following:

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

S220. The terminal device determines a target transmit power for data transmission in an inactive state according to the power control parameter.

Optionally, in some embodiments, the method 200 further includes:

S230. The terminal device sends an uplink data packet to the network device at the target transmit power.

Correspondingly, the network device receives the uplink data packet sent by the terminal device at the target transmit power.

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. It is convenient for the terminal equipment to determine the transmit power for inactive state data transmission according to the power control parameter after entering the RRC_INACTIVE state, thereby reducing the interference of the inactive state data transmission to other data transmissions.

Optionally, in some embodiments of the present application, the inactive state data transmission may be PUR-based data transmission, or may also be random access process-based data transmission. For specific implementation, refer to the relevant descriptions of the foregoing embodiments. I won't go into details here.

Optionally, the power control parameter may be sent through a first message, and optionally, the first message may be any downlink message, for example, an RRC message, a Media Access Control Control Element (Media Access Control Control Element, MAC CE), or downlink control information (Downlink Control Information, DCI), etc.

Optionally, in some embodiments, the power control parameter may be sent through an RRC connection release message. For example, an information field may be added in the RRC connection release message to carry power control parameters corresponding to data transmission in the inactive state.

Optionally, in some other embodiments, the power control parameter may be sent through a broadcast message.

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

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

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

Optionally, in some embodiments, the network device may configure a set of power control parameters for the transmission of the inactive uplink data channel and the uplink control channel, or the network device may configure two sets of power control parameters, respectively using The transmission of the uplink data channel and the transmission of the uplink control channel in the inactive state are not limited in this application.

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

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.

Embodiment one:

The power control parameters include at least one of the following:

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

The first indication information is used to indicate the position of the power control command in the DCI;

initial transmit power;

The desired target received power of the network device.

The first embodiment may be an implementation manner of closed-loop power control parameters.

In the embodiment of the present application, the power control command is also called a transmission power control (Transmission Power Control, TPC) command.

Optionally, in the first embodiment, the network device may also configure the terminal device with resources for data transmission in the inactive state, such as PUR resources or CG resources.

Optionally, in some embodiments, the initial transmit power and the target receive power expected by the network device may be configured alternatively.

For example, the power control parameter includes the initial transmit power, but does not include the target receive power expected by the network device. In this case, the terminal device can use the initial transmit power as the first uplink data packet in the inactive state data transmission process. target transmit power.

For another example, the power control parameter includes the target received power expected by the network device, but does not include the initial transmit power. In this case, the terminal device may determine the The target transmit power of the first uplink data packet. For example, the terminal device may determine the target transmit power of the first uplink data packet according to the target receive power expected by the network device and the current path loss.

It should be understood that in this embodiment of the application, the terminal device determines the target transmit power according to the target receive power and path loss expected by the network device, which means that the terminal device determines the target transmit power based on at least these two parameters, and in some cases It is also necessary to combine other power factors, and the relationship between the other power factors, the target received power, and the path loss may be a linear superposition relationship or a nonlinear relationship, which is similar in other embodiments.

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

It can be understood that when the terminal device moves, the path loss of the terminal device may change. Determining the target transmit power according to the current path loss of the terminal device is beneficial to ensure reliable transmission of uplink data, and can also help avoid interference to other transmissions.

Optionally, if the power control parameters include both the initial transmit power and the target receive power expected by the network device, in this case, the initial transmit power or the target receive power may be used to determine the inactive state data transmission process The target transmit power of the first uplink data packet, which is not limited in this application. For a specific implementation manner of determining the target transmit power of the first uplink data packet according to the initial transmit power or the target receive power, refer to the relevant descriptions of the foregoing embodiments, and details are not repeated here.

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 may be identification information of the terminal device, used to identify the The power control command carried by the DCI is used to perform power control on the terminal device.

As an example, the first identification information includes a radio network temporary identifier (Radio Network Temporary Identity, RNTI) corresponding to the terminal device.

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

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

Optionally, the first indication information is used to indicate the position of the power control command in the DCI. Therefore, the terminal device can acquire the power control command in the DCI according to the first indication information.

Optionally, in some embodiments, the first identification information may be sent through an RRC release message.

Optionally, in some embodiments, the first indication information may be sent through an RRC release message

Optionally, in some embodiments, the initial transmit power may be sent through an RRC release message, or may also be sent through a broadcast message. That is, the initial transmit power can be UE-specific, or can also be configured in units of cells.

Optionally, in some embodiments, the desired target received power of the network device may be sent through an RRC release message, or may also be sent through a broadcast message. That is, the target received power may be UE-specific, or may be configured in units of cells.

In the first embodiment, the S220 further includes:

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

Obtain the power control command from the DCI;

Determine the target transmit power for the Kth data packet in the inactive state data transmission according to the power control command, where K is a positive integer greater than or equal to 2.

That is, in the first embodiment, the transmission power of the first uplink data packet can be determined according to the initial transmission power or the target receiving power expected by the network device, and the transmission power of subsequent uplink data packets can be determined according to the power control command of the network device.

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 packets, the currently used transmit power may be the transmit power used to transmit the K-1th data packet.

For example, the transmit 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 transmit power used to transmit the Kth data packet is P2=P1+X.

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 an expected target received power of the network device.

For example, the desired target receiving power of the network device is P0, and the power adjustment amount is Y, then the target transmitting power used for transmitting the Kth data packet is P2=P0+Y.

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

It will be described with reference to the specific example shown in FIG. 8 .

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

Embodiment two

As an example, the power control parameter includes a target received power expected by the network device.

The second embodiment may be an implementation manner of open-loop power control parameters.

Optionally, in the second embodiment, the network device may also configure the terminal device with resources for data transmission in the inactive state, such as PUR resources or CG resources.

Optionally, the target received power expected by the network device is released through an RRC message; or

The desired target received power of the network device is configured through a broadcast message.

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.

For example, as shown in FIG. 9 , the target transmit power corresponding to each data packet may be determined according to the target receive power, current path loss and other power control factors.

Since the terminal device is moving, 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 may also be different.

As another implementation manner, the terminal device determines the target transmit power for the first 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.

That is, the transmission power of the first uplink data packet can be determined according to the initial transmission power or the target receiving 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.

Optionally, in some embodiments, the terminal device may adjust the target received 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.

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 received power currently used by the terminal device is The desired target received power of the network device.

In some embodiments, the terminal device may determine the power control command for the The target transmit power of the Kth data packet, wherein K is a positive integer greater than or equal to 2.

As example 1, if the power control command of the network device is not received within the first duration T before sending the Kth data packet, according to the target received power currently used by the terminal device and the terminal device The path loss of determines the target transmit power for the Kth data packet.

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, according to the expected target received power of the network device and the path loss of the terminal device A target transmit power for the Kth data packet is determined.

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

In this case, for Example 1, if no power control command is received within the first time period T before sending the Kth data packet, the Kth data packet can be determined according to the currently used target received power P0' and the current path loss Corresponding target transmit power. For example 2, if no power control command is received within the first time period T before sending the Kth data packet, then the target transmit power corresponding to the Kth data packet can be determined according to the target received power P0 expected by the network device and the current path loss .

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

In this case, for Example 1, if no power control command is received within the first time period T before sending the Kth data packet, the current The path loss determines the target transmit power corresponding to the Kth data packet. For Example 2, if the power control command is not received within the first duration T before sending the Kth data packet, the target transmission corresponding to the Kth data packet can be determined according to the target received power P0 expected by the network device and the current path loss power.

As example 3, if the power control command of the network device is received within the first time length before sending the Kth data packet, determine the power control command for the Kth data packet according to the first target received power and the power control command The target transmit power of data packets, and the first target receive power is the target receive power currently used by the terminal device.

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

In this case, for example 3, if the second power control command is received within the first duration T before sending the Kth data packet, and the second power control command includes the second power adjustment amount, then it can be received according to the currently used target The power P0' and the second power adjustment amount adjust the target received power to P0", and further, the target transmit power corresponding to the Kth data packet can be determined according to the adjusted target received power P0" and the current path loss.

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

In this case, for example 3, if the second power control command is received within the first duration T before sending the Kth data packet, and the second power control command includes the second power adjustment amount, then it can be received according to the currently used target The power P0 and the second power adjustment amount adjust the target receiving power, and further, the target transmitting power corresponding to the Kth data packet may be determined according to the adjusted target receiving power and the current path loss.

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

Optionally, in some embodiments, the power control command is carried in the retransmission scheduling DCI corresponding to the first data packet, and the first data packet includes At least one of the N data packets, wherein the N is a positive integer.

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

As an example, if the terminal device does not receive the retransmission schedule of any of the N data packets preceding the Kth data packet before sending the Kth data packet, the terminal device may use The target received power of or the expected target received power of the network device determines the target transmit power of the Kth data packet.

As another example, if the terminal device receives the retransmission schedule of the first data packet in the N data packets before the K th data packet before sending the K th data packet, the retransmission schedule includes power Control command, the power control command includes the 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, and further, can determine the second path according to the adjusted target receiving power and the current path loss The target transmit power corresponding to K data packets.

As another example, if the terminal device receives the retransmission schedule of the first data packet in the N data packets before the K th data packet before sending the K th data packet, the retransmission schedule includes power Control command, the power control command includes the 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, and further, it can be determined according to the adjusted target receiving power and the current path loss. The target transmit power corresponding to the Kth data packet.

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

Combined with Figure 10 to illustrate.

The terminal device can determine the transmit power of the first data packet in the inactive state data transmission according to the target received power P0 expected by the network device, the current path loss and other power control factors.

Further, if the retransmission scheduling DCI for the first data packet is received, and the retransmission scheduling DCI includes a power adjustment amount, the terminal device may adjust the target receiving power according to the target receiving power expected by the network device and the power adjustment amount is P0', and further, the target transmit power corresponding to the second data packet can be determined according to the adjusted target receive power P0', the current path loss and other power control factors.

Further, if the retransmission scheduling DCI for the second data packet is received, and the retransmission scheduling DCI includes a power adjustment amount, the terminal device can adjust the target receiving power according to the currently used target receiving power P0' and the power adjustment amount. The power is P0", and further, the target transmit power corresponding to the third data packet can be determined according to the adjusted target receive power P0", the current path loss and other power control factors.

To sum up, the network device can configure power control parameters for inactive state data transmission to the terminal device, such as open-loop power control parameters or closed-loop power control parameters, so that after the terminal device enters the inactive state, it can The data transmission in the inactive state by controlling the parameters is beneficial to ensure the reliability of the data transmission in the inactive state, and can reduce interference to other data transmissions.

The method embodiment of the present application is described in detail above in conjunction with FIG. 7 to FIG. 10 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 11 to FIG. 14 . It should be understood that the device embodiment and the method embodiment correspond to each other, similar to The description can refer to the method embodiment.

Fig. 11 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in Figure 11, the terminal device 400 includes:

A communication unit 410, configured to receive a power control parameter sent by a network device for inactive state data transmission;

The processing unit 420 is configured to determine a target transmit power for data transmission in an inactive state according to the power control parameter.

Optionally, in some embodiments, the power control parameters include at least one of the following:

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

The first indication information is used to indicate the position of the power control command in the DCI;

initial transmit power;

The desired target received power of the network device.

Optionally, in some embodiments, the first identification information includes a wireless network temporary identification RNTI corresponding to the terminal device.

Optionally, in some embodiments, the power control parameter is sent through a radio resource control RRC release message.

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

The desired target received power of the network device is sent through a broadcast message.

Optionally, in some embodiments, the processing unit 420 is 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.

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

Determine the target transmit power for the first data packet in the inactive state data transmission according to the expected target receive power of the network device and the path loss of the terminal device.

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

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

Obtain the power control command from the DCI;

Determine the target transmit power for the Kth data packet in the inactive state data transmission according to the power control command, where K is a positive integer greater than or equal to 2.

Optionally, in some embodiments, the power control command includes a power adjustment amount, and the target transmit power for the Kth data packet is determined according to the first transmit power and the power adjustment amount, wherein the The first transmit power is the transmit power used by the terminal device to transmit the K-1th data packet in the inactive state data transmission.

Optionally, in some embodiments, the power control parameter includes a desired target received power of the network device.

Optionally, in some embodiments, the target received power expected by the network device is sent through an RRC release message; or

The desired target received power of the network device is configured through a broadcast message.

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

The target transmit power for each data packet in the inactive state data transmission is determined according to the expected target receive power of the network device and the path loss of the terminal device.

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

Determine the target transmit power for the first data packet in the inactive state data transmission according to the expected target receive power of the network device and the path loss of the terminal device.

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

Determine the target transmission power for the Kth data packet according to 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 state data transmission, wherein , the K is a positive integer greater than or equal to 2.

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

If the power control command of the network device is not received within the first time period before sending the Kth data packet, determine the power control command according to the target receiving power currently used by the terminal device and the path loss of the terminal device Based on the target transmission power of the Kth data packet; or

If the power control command of the network device is not received within the first time period before sending the Kth data packet, determine the power control command for the network device according to the expected target received power of the network device and the path loss of the terminal device The target transmit power of the Kth data packet; or

If the power control command of the network device is received within the first duration before sending the Kth data packet, determine the power used for the Kth data packet according to the first target received power and the power control command Target transmit power, where the first target receive power is the target receive power currently used by the terminal device.

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 received power currently used by the terminal device is The desired target received power of the network device.

Optionally, in some embodiments, the power control command includes a power adjustment amount, and the processing unit 420 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;

Determine the target transmit power for the Kth data packet according to the adjusted target receive power and the path loss of the terminal device.

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

Optionally, in some embodiments, the power control command is carried in the retransmission scheduling DCI corresponding to the first data packet, and the first data packet includes At least one of the N data packets, wherein the N is a positive integer.

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

Optionally, in some embodiments, the above-mentioned 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 above determination module may be one or more processors.

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 method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are for realizing the method shown in FIG. 7 For the sake of brevity, the corresponding process of the terminal device in 200 will not be repeated here.

Fig. 12 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in Figure 12, the network device 500 includes:

The communication unit 510 is configured to send a power control parameter used for data transmission in an inactive state to a terminal device.

Optionally, in some embodiments, the power control parameters include at least one of the following:

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

The first indication information is used to indicate the position of the power control command in the DCI;

initial transmit power;

The desired target received power of the network device.

Optionally, in some embodiments, the first identification information includes a wireless network temporary identification RNTI corresponding to the terminal device.

Optionally, in some embodiments, the power control parameter is sent through an RRC release message.

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

The desired target received power of the network device is sent through a broadcast message.

Optionally, in some embodiments, the above-mentioned 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 above determination module may be one or more processors.

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 method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are to realize the method shown in FIG. 7 For the sake of brevity, the corresponding processes of the network devices in 200 will not be repeated here.

Fig. 13 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 13 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 13 , the communication device 600 may further include a memory 620 . Wherein, the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.

Wherein, the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .

Optionally, as shown in FIG. 13 , 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 receive other Information or data sent by the device.

Wherein, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 600 may specifically be the mobile terminal/terminal device of the 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 of the embodiment of the present application, for the sake of brevity , which will not be repeated here.

FIG. 14 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 14 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 14 , the chip 700 may further include a memory 720 . Wherein, the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.

Wherein, the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .

Optionally, the chip 700 may also include an input interface 730 . Wherein, the processor 710 may control the input interface 730 to communicate with other devices or chips, specifically, may obtain information or data sent by other devices or chips.

Optionally, the chip 700 may also include an output interface 740 . Wherein, the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application. For the sake of brevity, details are not repeated here.

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, here No longer.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiment can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. 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.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above-mentioned memory is illustrative but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

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 methods of the embodiments of the present application. For brevity, here No longer.

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, it is not repeated here.

The embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, the Let me repeat.

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 cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.

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

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program is run on the computer, the computer is made to execute the corresponding processes implemented by the network device in the methods of the embodiment of the present application. For the sake of brevity , which will not be repeated here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program is run on the computer, the computer executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device For the sake of brevity, the corresponding process will not be repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

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

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the functions described above are realized in the form of software function 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 is essentially 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, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (60)

1. A method of power control, comprising:

   the terminal equipment receives a power control parameter for inactive state data transmission sent by the network equipment;

   and the terminal equipment determines target transmitting power for inactive state data transmission according to the power control parameter.
2. The method of claim 1, wherein the power control parameter comprises at least one of:

   the terminal equipment comprises first identification information, which is used for receiving Downlink Control Information (DCI) carrying a power control command by the terminal equipment;

   first indication information for indicating a position of the power control command in DCI;

   an initial transmit power;

   the network device expects a target received power.
3. The method according to claim 2, wherein the first identification information comprises a radio network temporary identification, RNTI, corresponding to the terminal device.
4. A method according to claim 2 or 3, characterized in that the power control parameter is sent by means of a radio resource control, RRC, release message.
5. A method according to claim 2 or 3, characterized in that the initial transmit power is transmitted by means of a broadcast message; and/or

   The target received power desired by the network device is transmitted via a broadcast message.
6. The method according to any of claims 2-5, wherein the terminal device determining a target transmit power for inactive state data transmission based on the power control parameter, comprising:

   the terminal device uses the initial transmitting power as the target transmitting power of the first data packet in the inactive state data transmission.
7. The method according to any of claims 2-5, wherein the terminal device determining a target transmit power for inactive state data transmission based on the power control parameter, comprising:

   and the terminal equipment determines the target transmitting power of the first data packet used in the inactive state data transmission according to the target receiving power expected by the network equipment and the path loss of the terminal equipment.
8. The method according to any of claims 2-7, wherein the terminal device determining a target transmit power for inactive state data transmission based on the power control parameter, comprising:

   the terminal equipment monitors DCI according to the first identification information;

   acquiring the power control command from the DCI;

   and determining target transmitting power of a Kth data packet used in inactive state data transmission according to the power control command, wherein K is a positive integer greater than or equal to 2.
9. The method of claim 8, wherein the power control command includes a power adjustment amount, and wherein the target transmit power for the kth data packet is determined based on a first transmit power and the power adjustment amount, wherein the first transmit power is a transmit power used by the terminal device to transmit the kth-1 data packet in an inactive state data transmission.
10. The method of claim 1, wherein the power control parameter comprises a target received power expected by the network device.
11. The method of claim 10, wherein the target received power expected by the network device is via an RRC release message; or alternatively

    The target received power desired by the network device is configured by a broadcast message.
12. The method according to claim 10 or 11, wherein the terminal device determining a target transmit power for inactive state data transmission based on the power control parameter, comprising:

    and the terminal equipment determines the target transmitting power for each data packet in the inactive state data transmission according to the target receiving power expected by the network equipment and the path loss of the terminal equipment.
13. The method according to claim 10 or 11, wherein the terminal device determining a target transmit power for inactive state data transmission based on the power control parameter, comprising:

    and the terminal equipment determines the target transmitting power of the first data packet used in the inactive state data transmission according to the target receiving power expected by the network equipment and the path loss of the terminal equipment.
14. The method according to claim 10, 11 or 13, characterized in that the terminal device determining a target transmit power for inactive state data transmission according to the power control parameter comprises:

    and determining target transmitting power for the Kth data packet according to the power control parameter and whether a power control command of the network equipment is received before the Kth data packet in the inactive state data transmission is transmitted, wherein K is a positive integer greater than or equal to 2.
15. The method of claim 14, wherein determining the target transmit power of the kth data packet based on the power control parameter and whether a power control command of the network device was received before transmitting the kth data packet comprises:

    if the power control command of the network device is not received within a first time period before the Kth data packet is sent, determining target transmitting power for the Kth data packet according to first target receiving power and the path loss of the terminal device, wherein the first target receiving power is the target receiving power currently used by the terminal device; or alternatively

    If the power control command of the network device is not received in a first time period before the Kth data packet is sent, determining target transmitting power for the Kth data packet according to target receiving power expected by the network device and the path loss of the terminal device; or alternatively

    And if the power control command of the network equipment is received in a first time period before the Kth data packet is sent, determining target transmitting power for the Kth data packet according to first target receiving power and the power control command, wherein the first target receiving power is the target receiving power currently used by the terminal equipment.
16. The method of claim 15, wherein the target received power currently used by the terminal device is the target received power expected by the network device if the terminal device has not received the power control command of the network device before transmitting the kth data packet.
17. The method according to claim 15 or 16, wherein the power control command comprises a power adjustment amount, wherein the determining a target transmit power for the kth data packet based on a first target received power and the power control command comprises:

    according to the first target received power and the power adjustment amount, adjusting the target received power currently used by the terminal equipment;

    and determining the target transmitting power for the Kth data packet according to the adjusted target receiving power and the path loss of the terminal equipment.
18. The method according to any of claims 15-17, wherein the first duration is network device configured or predefined.
19. The method according to any of claims 14-18, wherein the power control command is carried in a retransmission scheduling DCI corresponding to a first data packet, the first data packet comprising at least one of N data packets preceding the kth data packet in an inactive state data transmission, wherein N is a positive integer.
20. The method of claim 19, wherein the N is configured by a network device or predefined.
21. A method of power control, comprising:

    the network device sends power control parameters for inactive state data transmission to the terminal device.
22. The method of claim 21, wherein the power control parameter comprises at least one of:

    the terminal equipment comprises first identification information, which is used for receiving Downlink Control Information (DCI) carrying a power control command by the terminal equipment;

    first indication information for indicating a position of the power control command in DCI;

    an initial transmit power;

    the network device expects a target received power.
23. The method of claim 22, wherein the first identification information comprises a radio network temporary identity, RNTI, corresponding to the terminal device.
24. The method according to claim 22 or 23, characterized in that the power control parameter is sent by means of an RRC release message.
25. The method according to claim 22 or 23, wherein the initial transmit power is transmitted by a broadcast message; and/or

    The target received power desired by the network device is transmitted via a broadcast message.
26. A terminal device, comprising:

    a communication unit, configured to receive a power control parameter for inactive state data transmission sent by a network device;

    and the processing unit is used for determining target transmitting power for inactive state data transmission according to the power control parameter.
27. The terminal device of claim 26, wherein the power control parameter comprises at least one of:

    the terminal equipment comprises first identification information, which is used for receiving Downlink Control Information (DCI) carrying a power control command by the terminal equipment;

    first indication information for indicating a position of the power control command in DCI;

    an initial transmit power;

    the network device expects a target received power.
28. The terminal device of claim 27, wherein the first identification information includes a radio network temporary identifier, RNTI, corresponding to the terminal device.
29. The terminal device according to claim 27 or 28, characterized in that the power control parameter is sent by means of a radio resource control, RRC, release message.
30. The terminal device according to claim 27 or 28, characterized in that the initial transmit power is transmitted by a broadcast message; and/or

    The target received power desired by the network device is transmitted via a broadcast message.
31. Terminal device according to any of the claims 27-30, characterized in that the processing unit is specifically configured to:

    and taking the initial transmitting power as the target transmitting power of the first data packet in the inactive state data transmission.
32. Terminal device according to any of the claims 27-30, characterized in that the processing unit is specifically configured to:

    and determining the target transmitting power of the first data packet in the inactive state data transmission according to the target receiving power expected by the network equipment and the path loss of the terminal equipment.
33. The terminal device according to any of the claims 27-32, wherein the processing unit is further configured to:

    the terminal equipment monitors DCI according to the first identification information;

    acquiring the power control command from the DCI;

    and determining target transmitting power of a Kth data packet used in inactive state data transmission according to the power control command, wherein K is a positive integer greater than or equal to 2.
34. The terminal device of claim 33, wherein the power control command includes a power adjustment amount, and wherein the target transmit power for the kth data packet is determined based on a first transmit power and the power adjustment amount, wherein the first transmit power is a transmit power used by the terminal device to transmit the kth-1 data packet in an inactive state data transmission.
35. The terminal device of claim 26, wherein the power control parameter comprises a target received power expected by the network device.
36. The terminal device of claim 35, wherein the target received power expected by the network device is via an RRC release message; or alternatively

    The target received power desired by the network device is configured by a broadcast message.
37. Terminal device according to claim 35 or 36, wherein the processing unit is specifically configured to:

    and determining the target transmitting power for each data packet in the inactive state data transmission according to the target receiving power expected by the network equipment and the path loss of the terminal equipment.
38. Terminal device according to claim 35 or 36, wherein the processing unit is specifically configured to:

    And determining the target transmitting power of the first data packet in the inactive state data transmission according to the target receiving power expected by the network equipment and the path loss of the terminal equipment.
39. The terminal device according to claim 35, 36 or 38, wherein the processing unit is further configured to:

    and determining target transmitting power for the Kth data packet according to the power control parameter and whether a power control command of the network equipment is received before the Kth data packet in the inactive state data transmission is transmitted, wherein K is a positive integer greater than or equal to 2.
40. The terminal device of claim 39, wherein the processing unit is specifically configured to:

    if the power control command of the network device is not received within a first time period before the Kth data packet is sent, determining target transmitting power for the Kth data packet according to first target receiving power and the path loss of the terminal device, wherein the first target receiving power is the target receiving power currently used by the terminal device; or alternatively

    If the power control command of the network device is not received in a first time period before the Kth data packet is sent, determining target transmitting power for the Kth data packet according to target receiving power expected by the network device and the path loss of the terminal device; or alternatively

    And if the power control command of the network equipment is received in a first time period before the Kth data packet is sent, determining target transmitting power for the Kth data packet according to first target receiving power and the power control command, wherein the first target receiving power is the target receiving power currently used by the terminal equipment.
41. The terminal device of claim 40, wherein the target received power currently used by the terminal device is the target received power expected by the network device if the terminal device has not received the power control command of the network device before transmitting the Kth data packet.
42. The terminal device of claim 40 or 41, wherein the power control command includes a power adjustment amount, and wherein the processing unit is further configured to:

    according to the first target received power and the power adjustment amount, adjusting the target received power currently used by the terminal equipment;

    and determining the target transmitting power for the Kth data packet according to the adjusted target receiving power and the path loss of the terminal equipment.
43. The terminal device of any of claims 40-42, wherein the first duration is network device configured or predefined.
44. The terminal device of any one of claims 40-43, wherein the power control command is carried in a retransmission scheduling DCI corresponding to a first data packet, the first data packet including at least one of N data packets preceding the kth data packet in an inactive state data transmission, where N is a positive integer.
45. The terminal device of claim 44, wherein the N is configured by a network device or predefined.
46. A network device, comprising:

    and the communication unit is used for sending the power control parameters for the inactive state data transmission to the terminal equipment.
47. The network device of claim 46, wherein the power control parameters include at least one of:

    the terminal equipment comprises first identification information, which is used for receiving Downlink Control Information (DCI) carrying a power control command by the terminal equipment;

    first indication information for indicating a position of the power control command in DCI;

    an initial transmit power;

    the network device expects a target received power.
48. The network device of claim 47, wherein the first identification information comprises a radio network temporary identity, RNTI, corresponding to the terminal device.
49. The network device of claim 47 or 48, wherein the power control parameters are sent via an RRC release message.
50. The network device of claim 47 or 48, wherein the initial transmit power is sent via a broadcast message; and/or

    The target received power desired by the network device is transmitted via a broadcast message.
51. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 20.
52. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 20.
53. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 20.
54. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 20.
55. A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 20.
56. A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 21 to 25.
57. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 21 to 25.
58. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 21 to 25.
59. A computer program product comprising computer program instructions which cause a computer to perform the method of any of claims 21 to 25.
60. A computer program, characterized in that the computer program causes a computer to perform the method of any of claims 21 to 25.

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