JP7328421B2 - Method, terminal device and network device for power control - Google Patents

Description

TECHNICAL FIELD Embodiments of the present application relate to the field of communications, and in particular to methods, terminal devices and network devices for power control.

In the conventional New Radio (NR) design, if the uplink transmission of User Equipment (UE) does not support multi-beam, the network will send one downlink reference signal to the UE for path loss estimation of uplink transmission. (Downlink Reference Signal, DL RS). However, the network device can configure multiple bandwidth parts (BWP) for the UE and instruct the UE to dynamically transmit on different BWPs via signaling, thereby: The terminal device can use the same DL RS as the pathloss estimation for uplink transmission when switching to any BWP, increasing the pathloss estimation error for uplink transmission and degrading system performance.

In view of the above, the embodiments of the present application provide a method, terminal device and network device for power control that can improve the accuracy of power control and improve system performance.

A first aspect provides a method for power control, the method comprising: a terminal device determining a first downlink reference signal resource group corresponding to a first bandwidth portion; determining a pathloss value used for calculating transmission power of uplink data to be transmitted based on signals corresponding to downlink reference signal resources in the first downlink reference signal resource group; A downlink reference signal resource group includes at least one downlink reference signal resource.

By configuring resource groups for downlink reference signals corresponding to each BWP, the terminal device can better perform path loss estimation for uplink transmission, contribute to improving the accuracy of power control, and improve system performance. can be done.

In one implementation, determining a first downlink reference signal resource group corresponding to a first bandwidth portion by the terminal device includes performing mapping between the bandwidth portion and the downlink reference signal resource group by the terminal device. Based on the relationship, determining the first downlink reference signal resource group corresponding to the first bandwidth portion.

The terminal device can determine the downlink reference signal resource group of the corresponding BWP based on the mapping relationship between the BWP and the downlink reference signal resource group, so that the terminal device can dynamically switch between BWPs while switching appropriately. It is possible to flexibly use different downlink reference signal resource groups to perform path loss estimation for uplink transmission.

In one possible form, the mapping relationship includes a correspondence relationship between K downlink reference signal resource groups and X downlink bandwidth portions, where K and X are positive integers greater than 1, and K is less than or equal to X.

In one implementation, the mapping relationship includes correspondence between M downlink reference signal resource groups and Y uplink bandwidth portions, where M and Y are positive integers greater than one.

In one possible form, the method further includes the terminal device receiving first information transmitted by the network device, the first information activating the first bandwidth portion. and the terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth part based on the mapping relationship between the bandwidth part and the downlink reference signal resource group. The terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth portion based on the mapping relationship and the first bandwidth portion.

In one implementation, the first information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

In one possible form, the method further includes the terminal device receiving second information transmitted by the network device, the second information indicating the mapping relationship.

In a possible implementation, the second information is carried in higher layer signaling, media access control MAC control element CE signaling or downlink control information DCI.

In one possible form, before the terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth portion, the method further comprises: 3, the third information indicates the first downlink reference signal resource group corresponding to the first bandwidth portion to be activated, and the terminal device receives the first Determining a first downlink reference signal resource group corresponding to a bandwidth portion means that the terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth portion based on the third information. Including determining resource groups.

In one implementation, the third information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI to indicate activation of the first bandwidth portion. be.

In one implementation, the downlink reference signal resources include channel state indication reference signal CSI-RS resources and/or synchronization signal/broadcast channel blocks.

In one possible form, the method further comprises the terminal device determining transmission power of the transmitted uplink data based on the pathloss value; and the terminal device determining, based on the transmission power, and transmitting the transmitted uplink data.

A second aspect provides a method for power control, the method comprising a network device transmitting first information to a terminal device, the first information indicating that the terminal device is used to determine the first downlink reference signal resource group corresponding to the bandwidth portion of, and the signal corresponding to the downlink reference signal resource in the first downlink reference signal resource group is transmitted by the terminal device It is used to determine a pathloss value used when calculating transmission power of uplink data, and the first downlink reference signal resource group includes at least one downlink reference signal resource.

In one possible form, the first information is a mapping relationship between bandwidth portions and downlink reference signal resource groups.

In one possible form, the mapping relationship includes a correspondence relationship between K downlink reference signal resource groups and X downlink bandwidth portions, where K and X are positive integers greater than 1, and K is less than or equal to X.

In one implementation, the mapping relationship includes correspondence between M downlink reference signal resource groups and Y uplink bandwidth portions, where M and Y are positive integers greater than one.

In one possible form, the method further includes the network device transmitting second information to the terminal device, the second information activating the first bandwidth portion. to do so.

In a possible implementation, the second information is carried in higher layer signaling, media access control MAC control element CE signaling or downlink control information DCI.

In one implementation, the first information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

In one possible form, the first information indicates the first downlink reference signal resource group corresponding to the first bandwidth portion to be activated.

In one implementation, the first information is carried in higher layer signaling, media access control MAC control element CE signaling or downlink control information DCI to indicate activation of the first bandwidth portion. .

In one implementation, the downlink reference signal resources include channel state indication reference signal CSI-RS resources and/or synchronization signal/broadcast channel blocks.

A third aspect provides a terminal device for performing the method in the above first aspect or any possible implementation of the first aspect. Specifically, the terminal device includes a unit for performing the method in the above first aspect or any possible implementation of the first aspect.

A fourth aspect provides a network device for performing the method in the above second aspect or any possible implementation of the second aspect. Specifically, the network device includes units for performing the method in the above second aspect or any possible implementation of the second aspect.

A fifth aspect provides a terminal device having a memory, a processor, an input interface and an output interface. The memory, processor, input interface and output interface are connected via a bus system. The memory is used to store instructions, and the processor executes the instructions stored in the memory to perform the method in the first aspect or any possible implementation of the first aspect. used.

A sixth aspect provides a network device having a memory, a processor, an input interface, and an output interface. The memory, processor, input interface and output interface are connected via a bus system. The memory is used to store instructions, and the processor executes the instructions stored in the memory to perform the method in the second aspect or any possible implementation of the second aspect. used.

A seventh aspect performs the method in the first aspect or any possible implementation of the first aspect above, or the second aspect or any possible implementation of the second aspect above. A computer storage medium is provided for storing computer software instructions for performing, including a program designed to carry out the above aspects.

An eighth aspect provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the method of the first aspect above or any implementation of the first aspect or the second aspect above. The method in aspect 2 or any implementation of the second aspect is performed.

In the present application, the names such as terminal device and network device are not intended to limit the devices themselves, and in actual implementation, these devices may appear under different names. As long as the functions of each device are similar to those of this application, they will fall within the scope of the claims of this application and their equivalents.

These and other aspects of the present application will be more readily understood in the description of the examples that follow.

FIG. 2 is a schematic diagram of an application scene in an embodiment of the present application; FIG. 4 is a block diagram for upstream power in an embodiment of the present application; FIG. 4 is another block diagram for upstream power in an embodiment of the present application; FIG. 4 is a block diagram of a terminal device in an embodiment of the present application; 1 is a block diagram of a network device in an embodiment of the present application; FIG. FIG. 3 is another block diagram of a terminal device in an embodiment of the present application; FIG. 4 is a block diagram of another network device in an embodiment of the present application;

The technical solutions in the embodiments of the present application are hereinafter clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

The technical solutions of the embodiments of the present application can be applied, for example, to Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution LTE system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex , TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) , or future 5G systems It should be understood that it is applicable to various communication systems such as.

In particular, the technical solutions of the embodiments of the present application are based on various non-orthogonal multiple access technologies, such as Sparse Code Multiple Access (SCMA) system, Low Density Signature (LDS) system, etc. Although applicable to communication systems, SCMA systems and LDS systems may also be known by other names in the communications field. In addition, the technical schemes of the embodiments of the present application are applicable to multi-carrier transmission systems adopting non-orthogonal multiple access technology, such as Orthogonal Frequency Division Multiplexing (OFDM) adopting non-orthogonal multiple access technology, filter group It may be applied to multi-carrier (Filter Bank Multi-Carrier, FBMC), generalized frequency division multiplexing (GFDM), filtering orthogonal frequency division multiplexing (Filtered-OFDM, F-OFDM) systems, and the like.

A terminal device in the embodiments of this application refers to User Equipment (UE), access terminal, user equipment, user station, mobile station, remote terminal, mobile equipment, user equipment, wireless communication equipment, user agent or user equipment. may The access terminal has cellular telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), and wireless communication capabilities. Handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or future evolving public land mobile networks (Public Land Mobile Network, PLMN). ), but embodiments of the present disclosure are not limited.

A network device in an embodiment of the present application may be a device for communicating with a terminal device, such as a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB), an evolved base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, a radio controller in a Cloud Radio Access Network (CRAN) scenario, or the network device is a relay station, It may be an access point, an in-vehicle device, a wearable device, and a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited.

FIG. 1 is a schematic diagram of an application scene according to an embodiment of the present application. The communication system of FIG. 1 may include terminal device 10 and network device 20 . The network device 20 provides communication services to the terminal device 10 and accesses the core network. to access and communicate with the network. The arrows shown in FIG. 1 may represent uplink/downlink transmissions over a cellular link between terminal device 10 and network device 20 .

In the current NR design, when the uplink transmission of the UE supports different beams, the network configures the DL RSs corresponding to different beams for the UE, so that when the terminal device uses different beams for uplink transmission, Path loss estimation may be performed according to each DL RS. If the UE's uplink transmission does not support multi-beam, the network only configures one DL RS for the UE.

In NR, the network can configure multiple Downlink bandwidth parts (DL BWP ) or Uplink bandwidth parts (UL BWP) for the UE, and the network sends downlink control information Relative dynamic transmission on different BWPs can be indicated by, for example, Downlink Control Information (DCI) or Media Access Control (MAC) Control Element (CE). If path loss estimation for uplink transmission is performed using the same DL RS even after switching the BWP, errors may increase and the calculated transmission power may become insufficient. Therefore, there is a need for a method of performing path loss estimation using more appropriate DL RSs after the terminal device switches BWP.

FIG. 2 is a block diagram of a method 100 for power control in an embodiment of the present application. As shown in FIG. 2, the method 100 includes at least some of the following.

In S110, the terminal device determines a first downlink reference signal resource group corresponding to the first bandwidth portion, the first downlink reference signal resource group including at least one downlink reference signal resource;
In S120, the terminal device determines a pathloss value used for calculating transmission power of uplink data to be transmitted based on signals corresponding to downlink reference signal resources in the first downlink reference signal resource group.

Specifically, the network device can configure K DL RS resource groups for the terminal device, where each DL RS resource group can include at least one DL RS. The number of DL RSs included in each DL RS may be the same as the number of beams supported by the terminal device. For example, if the terminal device does not support multiple beams, each DL RS resource group includes one DL RS resource, and if the terminal device supports N beams, where N is a positive integer greater than 1, Each DL RS resource group includes N DL RS resources. A network device may associate a DL BWP or UL BWP configured for a terminal device with some or all of the K DL RS resource groups. Thereby, the terminal device acquires the DL RS resource group corresponding to the relevant BWP, and further uses the signal corresponding to the DL RS resource in the identified DL RS resource group to identify the path loss value for uplink transmission. can do.

Therefore, the method for power control of the embodiments of the present application is advantageous for improving the accuracy of power control, and can improve system performance.

Optionally, in an embodiment of the present application, determining the first downlink reference signal resource group corresponding to the first bandwidth portion means that the terminal device determines the bandwidth portion and the downlink reference signal resource group. determining the first downlink reference signal resource group corresponding to the first bandwidth portion based on the mapping relationship between .

A terminal device stores in advance a mapping relationship between a BWP and a DL RS resource group. Specifically, the mapping relationship may be configured by a network device or agreed upon by a protocol. . The mapping relationship is stored in its internal storage module when the terminal device does. When the terminal device switches to a BWP, the terminal device searches for the DL RS resource group corresponding to the BWP to switch to from the mapping relationship, and the terminal device sends signals corresponding to the DL RS resources in the determined DL RS resource group. A path loss estimation for upstream transmission can be performed based on .

The terminal device can determine the downlink reference signal resource group on the BWP based on the mapping relationship between the BWP and the downlink reference signal resource group. It is possible to flexibly use the downlink reference signal resource group to perform pathloss estimation for uplink transmission.

Note that the mapping relationship may be the correspondence relationship between the DL BWP and the DL RS resource group, the mapping relationship may be the correspondence relationship between the UL BWP and the DL RS resource group, and the mapping The relationship may be a mapping relationship among the three of DL BWP, UL BWP and DL RS, and the embodiments do not limit the type of BWP.

Also, it should be understood that the number of DL RS resource groups that the network device configures in the terminal device should not be greater than the number of DL BWPs that it configures in the terminal device. However, the number of DL RS resource groups configured in the terminal device by the network device is not limited by the number of UL BWPs configured in the terminal device.

Optionally, in an embodiment of the present application, the method further comprises receiving first information transmitted by the network device by the terminal device, wherein the first information comprises the first bandwidth instructs to activate a portion, and the terminal device selects the first downlink reference signal resource group corresponding to the first bandwidth portion based on the mapping relationship between the bandwidth portion and the downlink reference signal resource group; includes the terminal device determining the first downlink reference signal resource group corresponding to the first bandwidth portion based on the mapping relationship and the first bandwidth portion .

Specifically, the network device may indicate to the terminal device to activate a certain BWP by higher layer signaling, MAC CE signaling, or DCI signaling, which may be a DL BWP, or a UL BWP. The higher layer signaling may be, for example, Radio Resource Control (RRC) signaling.

Optionally, if the mapping relationship is configured by the network device to the terminal device, the network device may similarly be indicated to the terminal device by higher layer signaling, MAC CE signaling, or DCI signaling.

Optionally, before the terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth portion, the method further comprises: wherein the third information indicates the first downlink reference signal resource group corresponding to the first bandwidth portion to be activated, and the terminal device receives the first bandwidth portion determining the first downlink reference signal resource group corresponding to the terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth portion based on the third information; Including deciding.

That is, the network device does not configure the terminal device in advance the mapping relationship between the BWP and the DL RS resource group, but when the network device instructs the terminal device to switch the BWP, the DL RS resource corresponding to the BWP is Groups may be configured in terminal devices. For example, when a network device instructs the activation of BWP1, the network device can refer to its BWP1 and instruct the terminal device to configure a DL RS resource group that conforms to its BWP1, and further, The terminal device can perform pathloss estimation for uplink transmission based on signals corresponding to DL RS resources in the indicated DL RS resource group.

Additionally, a network device can indicate a DL RS resource group corresponding to a BWP while activating that BWP. For example, a network device may indicate to a terminal device to activate a certain BWP and the DL RS resource group corresponding to that BWP via the same higher layer signaling, the same MAC CE signaling, or DCI signaling. The network device may separately indicate the activation of a certain BWP and the DL RS resource group corresponding to the BWP to the terminal device, and embodiments are not limited thereto.

Note that before the network device indicates the DL RS resource group corresponding to the BWP, the terminal device should use the previous DL RS resource group to perform path loss estimation.

In addition, the DL RS in the embodiments of the present application is a Channel State Information-Reference Signals (CSI-RS) and/or a Synchronous Signal/Physical Broadcast Channel (Broadcast Channel, PBCH) block (SS /PBCH Block).

Further, after the terminal device determines the pathloss value, the method further comprises: the terminal device determining transmission power of the uplink data to be transmitted based on the pathloss value; and transmitting the transmitted uplink data based on the power.

It should be noted that the first information, the second information, and the third information herein may be carried in the same signaling in any combination, and embodiments of the present application are not limited thereto. 2 is a block diagram of a method 200 for power control in an embodiment of FIG. As shown in FIG. 3, the method 200 includes the following steps.

At S210, the network device transmits first information to the terminal device, the first information for the terminal device to determine the first downlink reference signal resource group corresponding to the first bandwidth portion. The signals used and corresponding to the downlink reference signal resources in the first downlink reference signal resource group are used to determine the pathloss value used when the terminal device calculates the transmission power of uplink data to be transmitted. and the first downlink reference signal resource group includes at least one downlink reference signal resource.

Therefore, the method for power control of the embodiments of the present application is advantageous for improving the accuracy of power control, and can improve system performance.

Optionally, in an embodiment of the present application, the first information is a mapping relationship between bandwidth parts and downlink reference signal resource groups.

Optionally, in an embodiment of the present application, the mapping relationship includes a correspondence relationship between K downlink reference signal resource groups and X downlink bandwidth parts, where K and X are positive integers greater than 1 Yes, and K is less than or equal to X.

Optionally, in an embodiment of the present application, the mapping relationship includes a correspondence relationship between M downlink reference signal resource groups and Y uplink bandwidth portions, where M and Y are positive integers greater than 1 be.

Optionally, in an embodiment of the present application, the method further comprises the network device transmitting second information to the terminal device, wherein the second information uses the first bandwidth portion Instruct to activate.

Optionally, in embodiments of the present application, the second information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

Optionally, in embodiments of the present application, the first information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

Optionally, in embodiments of the present application, the first information indicates the first downlink reference signal resource group corresponding to the first bandwidth portion to be activated.

Optionally, in an embodiment of the present application, the first information is in higher layer signaling, media access control MAC control element CE signaling or downlink control information DCI for indicating activation of the first bandwidth portion. be transported.

Optionally, in embodiments of the present application, the downlink reference signal resources include channel state indication reference signal CSI-RS resources and/or synchronization signal/broadcast channel blocks.

It is understood that the terms "system" and "network" are often used interchangeably herein. Here, and/or is simply one of the association relationships to describe the associated objects, meaning that there can be three relationships, such as A and/or B, only A, It means that there can be three cases, that A and B exist simultaneously, and that only B exists. Note that the character "/" in the text generally indicates that the related objects before and after are in a kind of "or" relationship.

It is understood that the interaction and associated properties, functions, etc. between the network device and the terminal device described by the network device correspond to the relevant properties, functions of the terminal device. It should be noted that the relevant details are described in detail in the method 100 above and are not described here for the sake of brevity.

In addition, in the various embodiments of the present application, the magnitude of the order of the processes described above does not mean that the order of execution is before or after the order of execution, and the order of execution of each process should be determined by its function and internal logic. , should not be construed as limiting the processes of the examples of this application in any way.

The power control method according to the embodiment of the present application has been described in detail above. Hereinafter, the power control apparatus according to the embodiment of the present application will be described with reference to FIGS. 4 to 7. FIG.

FIG. 4 shows a block diagram of a terminal device 300 in an embodiment of the present application. As shown in FIG. 4, the terminal device 300 includes a first determining unit 310 and a second determining unit 320. The first determining unit 310 is the first downlink reference corresponding to the first bandwidth portion. configured to determine a signal resource group, the first downlink reference signal resource group including at least one downlink reference signal resource;
A second determining unit 320, based on corresponding to the downlink reference signal resource in the first downlink reference signal resource group, to determine the pathloss value used to calculate the transmission power of the uplink data to be transmitted. Configured.

Therefore, the terminal device according to the embodiments of the present application is advantageous in improving the accuracy of power control, and can improve system performance.

Optionally, in an embodiment of the present application, the first determining unit specifically based on the mapping relationship between the bandwidth part and the downlink reference signal resource group, the It is configured to determine a first downlink reference signal resource group.

Optionally, in an embodiment of the present application, the mapping relationship includes a correspondence relationship between K downlink reference signal resource groups and X downlink bandwidth parts, where K and X are positive integers greater than 1 Yes, and K is less than or equal to X.

Optionally, in an embodiment of the present application, the mapping relationship includes a correspondence relationship between M downlink reference signal resource groups and Y uplink bandwidth portions, where M and Y are positive integers greater than 1 be.

Optionally, in an embodiment of the present application, the terminal device further comprises a first receiving unit, the first receiving unit configured to receive first information transmitted by the network device, the first 1 information indicates to activate the first bandwidth portion, and the first determining unit determines the first bandwidth portion based on the mapping relationship between the bandwidth portion and the downlink reference signal resource group; Specifically, determining the first downlink reference signal resource group corresponding to the first determining a downlink reference signal resource group for each.

Optionally, in embodiments of the present application, the first information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

Optionally, in embodiments of the present application, the terminal device further comprises a second receiving unit, the second receiving unit configured to receive second information transmitted by the network device, 2 information indicates the mapping relationship.

Optionally, in embodiments of the present application, the second information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

Optionally, in an embodiment of the present application, before the terminal device determines the first downlink reference signal resource group corresponding to the first bandwidth portion, the terminal device further includes a third receiving unit; 3 receiving units configured to receive third information transmitted by the network device, the third information being the first downstream bandwidth corresponding to the first bandwidth portion to be activated; indicating a reference signal resource group, wherein the first determining unit specifically determines the first downlink reference signal resource group corresponding to the first bandwidth portion based on the third information; configured as

Optionally, in embodiments of the present application, the third information is higher layer signaling for indicating activation of the first bandwidth portion, media access control MAC control element CE signaling or downlink control information DCI transported to

Optionally, in embodiments of the present application, the downlink reference signal resources include channel state indication reference signal CSI-RS resources and/or synchronization signals/broadcast broadcast.

Optionally, in an embodiment of the present application, the terminal device further comprises a third determining unit, wherein the third determining unit determines transmission power of the transmitted uplink data based on the pathloss value. A transmitting unit is configured to transmit the transmitted uplink data based on the transmission power.

In addition, the terminal device 300 according to the embodiments of the present application can correspond to the terminal device according to the embodiments of the present application, and the above-described and other operations and/or functions of each unit of the terminal device 300 are the same as the terminal device according to the method of FIG. For the sake of brevity, the description is omitted here for each implementation of the corresponding flow of the device.

FIG. 5 is a block diagram of network device 400 in an embodiment of the present application. As shown in FIG. 5, the network device 400 includes a first transmission unit 410,
The first transmitting unit 410 is configured for the network device to transmit first information to the terminal device, the first information being the first downstream bandwidth to which the terminal device corresponds to the first bandwidth portion. Signals used to determine a reference signal resource group and corresponding to downlink reference signal resources in the first downlink reference signal resource group are used when the terminal device calculates the transmission power of uplink data to be transmitted. and the first downlink reference signal resource group includes at least one downlink reference signal resource.

Therefore, the network device of the embodiments of the present application is advantageous in improving the accuracy of power control, and can improve system performance.

Optionally, in an embodiment of the present application, the first information is a mapping relationship between bandwidth parts and downlink reference signal resource groups.

Optionally, in an embodiment of the present application, the mapping relationship includes a correspondence relationship between K downlink reference signal resource groups and X downlink bandwidth parts, where K and X are positive integers greater than 1 Yes, and K is less than or equal to X.

Optionally, in an embodiment of the present application, the mapping relationship includes a correspondence relationship between M downlink reference signal resource groups and Y uplink bandwidth portions, where M and Y are positive integers greater than 1 be.

Optionally, in an embodiment of the present application, the network device further comprises a second transmission unit, the second transmission unit configured to transmit second information to the terminal device, the second The information directs activation of the first bandwidth portion.

Optionally, in embodiments of the present application, the second information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

Optionally, in embodiments of the present application, the first information is carried in higher layer signaling, media access control MAC control element CE signaling or downstream control information DCI.

Optionally, in embodiments of the present application, the first information indicates the first downlink reference signal resource group corresponding to the first bandwidth portion to be activated.

Optionally, in an embodiment of the present application, the first information is in higher layer signaling, media access control MAC control element CE signaling or downlink control information DCI for indicating activation of the first bandwidth portion. be transported.

Optionally, in embodiments of the present application, the downlink reference signal resources include channel state indication reference signal CSI-RS resources and/or synchronization signal/channel block channel blocks.

It should be noted that the network device 400 according to the embodiments of the present application can correspond to the network device according to the embodiments of the method of the present application, and the above and other operations and/or functions of each part of the network device 400 are respectively described in FIG. For the sake of brevity, the description is omitted here to implement the corresponding flow of the network device in the method.

As shown in FIG. 6, embodiments of the present application further provide a terminal device 500, which may be the terminal device 300 of FIG. Used to run content. This terminal device 500 comprises an input interface 510, an output interface 520, a processor 530, and a memory 540, which are connectable by a bus system. Memory 540 is used to store data, including programs, instructions, or code. Processor 530 executes programs, instructions, or code in memory 540 to control input interface 510 to receive signals, control output interface 520 to transmit signals, and perform the aforementioned method embodiments. complete the action.

Therefore, the terminal device according to the embodiments of the present application is advantageous in improving the accuracy of power control, and can improve system performance.
In an embodiment of the present application, processor 530 may be a Central Processing Unit (CPU), other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ICs). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. . A general-purpose processor may be a microprocessor, the processor may be any conventional processor, and so on.

Memory 540 , which may include read-only memory and random-access memory, provides instructions and data to processor 530 . A portion of memory 540 may also include non-volatile random access memory. For example, memory 540 may further store device type information.

In implementations, each content of the method may be implemented by integrated logic circuitry in hardware or by instructions in software form in processor 530 . The method content disclosed in connection with the embodiments of the present application may be embodied either directly as a hardware processor execution, or to complete execution in a combination of hardware and software modules within the processor. A software module may reside in any storage medium known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, or the like. This storage medium is located in the memory 540 and the processor 530 reads the information in the memory 540 and together with its hardware implements the content of the method described above. To avoid duplication, detailed description is omitted here.

In a specific embodiment, the first determining unit, the second determining unit and the third determining unit of the terminal device 300 are embodied by the processor 530 of FIG. 6, and the transmitting unit of the terminal device 300 is the The first receiving unit, the second receiving unit and the third receiving unit of the terminal device 300 are embodied by the output interface 520 and the input interface 510 of FIG.

As shown in FIG. 7, the embodiments of the present application further provide a network device 600, which may be the network device 400 of FIG. 5, and the contents of the network device corresponding to the method 200 of FIG. used to run This network device 600 comprises an input interface 610, an output interface 620, a processor 630, and a memory 640, which can be connected by a bus system. Memory 640 is used to store data, including programs, instructions, or code. Processor 630 executes programs, instructions, or code in memory 640 to control input interface 610 to receive signals, control output interface 620 to transmit signals, and perform the aforementioned method embodiments. complete the action.

Therefore, the network device of the embodiment of the present application is advantageous in improving the accuracy of power control, and can improve system performance.

In an embodiment of the present application, processor 630 may be a Central Processing Unit (CPU), other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ICs). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. . A general-purpose processor may be a microprocessor, the processor may be any conventional processor, and so on.

Memory 640 may include read-only memory and random-access memory, and may provide instructions and data to processor 630 . A portion of memory 640 may further include non-volatile random access memory. For example, memory 640 may also store device type information.

In implementation, each content of the method may be accomplished by means of integrated logic circuitry in hardware within processor 630 or instructions in software form. The method content disclosed in connection with the embodiments of the present application may be embodied either directly as a hardware processor execution, or to complete execution in a combination of hardware and software modules within the processor. A software module may reside in any storage medium known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, or the like. The storage medium is located in memory 640 and processor 630 reads the information in memory 640 and, in combination with its hardware, implements the content of the methods described above. To avoid duplication, detailed description is omitted here.

In a specific embodiment, the first transmission unit and the second transmission unit in network device 400 are embodied by output interface 620 in FIG.

Those skilled in the art will appreciate that the units and algorithmic steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. will recognize. These functions depend on whether they are implemented in hardware or software, depending on the particular application and design constraints of the technical solution. Skilled artisans may use different methods for each particular application to implement the described functionality, but such implementations should not be considered a departure from the scope of the present disclosure.

For convenience and brevity of explanation, those skilled in the art may refer to the corresponding processes in the foregoing method embodiments for the specific operation processes of the systems, devices and units described above, here. will omit its description.

It should be understood that in some of the examples provided herein, the disclosed systems, devices, and methods may be implemented in other ways. For example, the above apparatus embodiments are merely illustrative, for example, the division of units is only the division of one logical function, and in actual implementation, there may be other division methods, such as , multiple units or components may be combined, integrated into another system, or some features may be omitted or not performed. In other respects, any mutual or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through any interface, device or unit, electrical, mechanical or in any other form.

The unit described as this separation means may or may not be physically separated, and the means indicated as a unit may or may not be a physical unit. , may be located at one location or distributed over multiple network units. Moreover, the object of the present embodiment can be achieved by selecting part or all of each part as required.

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

This functionality may be implemented in the form of software functional units and stored on a computer readable storage medium when sold or used as a standalone product. Based on such understanding, the essence of the technical solution of the present application or the part that contributes to the prior art, or the part of the technical solution is embodied in the form of a software product stored in one storage medium. Alternatively, the software product may include instructions for causing a computing device (which may be a personal computer, server, network device, etc.) to perform all or part of the steps of various embodiments of the present application. . As the storage medium, various media capable of storing program codes such as a U-shaped disk, removable hard disk, Read-Only Memory, ROM, RAM, magnetic disk, and optical disk can be used.

Although specific examples of the present application have been described above, the technical scope of the present application is not limited to this, and any person having ordinary knowledge in the technical field to which the present application belongs can Of course, changes and substitutions can easily be made within. Therefore, the protection scope of this application should be determined by the claims.

Claims (15)

A method for power control applied to a system including multiple bandwidth portion BWPs, comprising:
including the network device transmitting second information to the terminal device;
The second information is used to indicate the correspondence relationship between the BWP and the downlink reference signal DL RS resource group,
Each BWP in the correspondence relationship corresponds to one DL RS resource group;
the correspondence includes a correspondence between the first BWP and the first DL RS resource group;
the first DL RS resource group includes at least one DL RS resource;
The signal corresponding to the at least one DL RS resource is used to determine a path loss estimate used when calculating transmission power for transmitting uplink data transmitted by the terminal device. method for control. The power of claim 1, wherein the correspondence includes a correspondence between M DL RS resource groups and Y uplink BWPs, where M and Y are positive integers greater than 1. method for control. The correspondence relationship includes a correspondence relationship between K DL RS resource groups and X downlink BWPs, wherein K and X are positive integers greater than 1 and K is less than or equal to X. The method for power control of claim 1 . The method further comprises:
4. The network device of claim 1, comprising transmitting first information to the terminal device, the first information instructing to activate the first BWP. 2. A method for power control according to claim 1. 5. The method for power control according to claim 4, wherein said first information is carried in downlink control information DCI. A method for power control according to any preceding claim, wherein said second information is carried in higher layer signaling. The power according to any one of claims 1 to 6, wherein the DL RS resource comprises a channel state information reference signal CSI-RS resource and/or a synchronization signal/physical broadcast channel block SS/PBCH Block. method for control. A network device applied to a system comprising a plurality of bandwidth part BWPs and comprising a first transmission unit, comprising:
the first sending unit is configured for a network device to send second information to a terminal device;
The second information is used to indicate the correspondence relationship between the BWP and the downlink reference signal DL RS resource group,
Each BWP in the correspondence relationship corresponds to one DL RS resource group;
the correspondence includes a correspondence between the first BWP and the first DL RS resource group;
the first DL RS resource group includes at least one DL RS resource;
The signal corresponding to the at least one DL RS resource is used to determine a pathloss estimate used when calculating transmission power for transmitting uplink data transmitted by the terminal device. network device. 9. The network of claim 8, wherein the correspondence includes a correspondence between M DL RS resource groups and Y uplink BWPs, where M and Y are positive integers greater than 1. device. The correspondence relationship includes a correspondence relationship between K DL RS resource groups and X downlink BWPs, wherein K and X are positive integers greater than 1 and K is less than or equal to X. 9. The network device of claim 8. The transmitting unit further comprises:
configured to transmit first information to the terminal device;
A network device according to any one of claims 8 to 10, wherein said first information indicates to activate said first BWP. 12. The network device of claim 11, wherein the first information is carried in downlink control information DCI. A network device as claimed in any one of claims 8 to 12, wherein the second information is carried in higher layer signaling. The network according to any one of claims 8 to 13, characterized in that said DL RS resource comprises a channel state information reference signal CSI-RS resource and/or a synchronization signal/physical broadcast channel block SS/PBCH Block. device. A computer program causing a computer to execute the method for power control according to any one of claims 1 to 7.