CN111385863B

CN111385863B - Power control method and device

Info

Publication number: CN111385863B
Application number: CN201811628454.8A
Authority: CN
Inventors: 陈曦; 张鹏; 焦淑蓉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2021-10-15
Anticipated expiration: 2038-12-28
Also published as: CN111385863A

Abstract

The application provides a power control method and a power control device, relates to the field of communication, and is used for solving the problem that partial data cannot be demodulated due to phase discontinuity caused by power change when two kinds of service data are subjected to resource multiplexing transmission. The method comprises the following steps: the terminal equipment receives the first information and the second information; the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter; the second information is used for indicating the terminal equipment to send second service data according to the second power control parameter. When resource multiplexing transmission is performed on two types of service data, in order to avoid phase discontinuity caused by power change, the terminal device may transmit the second service data and the first part (the latter part) of the first service data by using the same power control parameter (the third power control parameter), thereby ensuring phase continuity of the first part of the first service data and the second service data. The method and the device are applied to a scene that the terminal equipment carries out multiplexing transmission on two (or more) kinds of information.

Description

Power control method and device

Technical Field

The present application relates to the field of communications, and in particular, to a power control method and apparatus.

Background

In the fifth generation (5)^thgeneration, 5G) mobile communication system, two services can exist simultaneously in one radio connection. For example, when a terminal device applies for scheduling resources of enhanced mobile broadband (eMBB) service data to a base station, if ultra-reliable and low-latency communications (URLLC) service data is to be transmitted suddenly, a problem arises how to multiplex the resources of the two service data.

The (set of) power control parameters for different traffic types are typically different, e.g., eMBB and URLLC traffic typically use different power control parameters. Different power control parameters may result in different transmit powers. If the transmission power of two adjacent time domain symbols is different, the phases of the two time domain symbols are discontinuous, so that the two time domain symbols cannot use the same reference signal for channel estimation and demodulation decoding, resulting in reduced data transmission efficiency.

Disclosure of Invention

The embodiment of the application provides a power control method and a power control device, which are used for solving the problem that partial data cannot be demodulated due to phase discontinuity caused by power change when two kinds of service data are subjected to resource multiplexing transmission. Thereby enabling to improve the transmission efficiency of data.

In a first aspect, an embodiment of the present application provides a power control method. The execution subject of the method may be a terminal device, or a chip or a module applied to the terminal device, and the following description takes the terminal device as the execution subject, and the method includes: the terminal equipment receives first information, wherein the first information is used for indicating the terminal equipment to send first service data according to a first power control parameter, and the first service data is borne on a first time-frequency resource; the terminal equipment receives second information, wherein the second information is used for indicating the terminal equipment to send second service data according to a second power control parameter, the second service data is borne on a second time-frequency resource, the time domain position of the second time-frequency resource is the same as the time domain position of a third time-frequency resource, and the third time-frequency resource is part of the time-frequency resource in the first time-frequency resource; and the terminal equipment sends second service data in a second time-frequency resource according to the third power control parameter, and sends the first part of the first service data in a fourth time-frequency resource according to the third power control parameter, wherein the fourth time-frequency resource comprises the time-frequency resource of which the time domain is later than the second time-frequency resource in the first time-frequency resource, and the third power control parameter is related to the second power control parameter.

Based on the method provided by the embodiment of the present application, the terminal device may send the second service data in the second time-frequency resource according to the third power control parameter, and send the first part of the first service data in the fourth time-frequency resource according to the third power control parameter. In this way, the same power control parameter (i.e., the third power control parameter) is used to transmit the second service data and the latter part of the first service data, thereby avoiding the problem of phase discontinuity caused by power change.

In one possible implementation, the method further includes: if the first condition is met, the terminal device sends the second part of the first service data in a fifth time-frequency resource according to the third power control parameter, wherein the fifth time-frequency resource comprises a time-frequency resource of which the time domain is earlier than that of the second time-frequency resource in the first time-frequency resource, and the first condition comprises: before the terminal equipment sends the first service data, acquiring second service data based on configuration authorization or acquiring scheduling authorization.

That is, if the first condition is satisfied, that is, before the terminal device sends the first service data, the terminal device obtains the second service data based on the configuration authorization or obtains the scheduling authorization, the terminal device may send the second part of the first service data in the fifth time-frequency resource according to the third power control parameter, send the second service data in the second time-frequency resource according to the third power control parameter, and send the first part of the first service data in the fourth time-frequency resource according to the third power control parameter. In this way, the terminal device can use the same power control parameter (i.e., the third power control parameter) to transmit the first service data (including the previous part and the subsequent part) and the second service data, thereby avoiding the problem of phase discontinuity caused by power change and improving transmission efficiency. The first traffic data and the second traffic data may use respective reference signals for channel estimation and demodulation decoding. For example, the former part and the latter part of the first service data use the reference signal of the first service data for channel estimation and demodulation decoding, and the second service data use the reference signal of the second service data for channel estimation and demodulation decoding. Of course, the same reference signal may be used for the first service data and the second service data. For example, the reference signal of the first service data is uniformly used to demodulate the first service data and the second service data. Or, the reference signal of the second service data is uniformly used to demodulate the first service data and the second service data, which is not limited in this application.

In one possible implementation, the third power control parameter is the same as the second power control parameter. That is, the second power control parameter may be used to send the second service data in the second time-frequency resource, and the second power control parameter may be used to send the first part of the first service data in the fourth time-frequency resource; or, if the first condition is satisfied, the terminal device may further send the second part of the first service data in the fifth time-frequency resource by using the second power control parameter.

In one possible implementation, the second power control parameter is different from the first power control parameter.

In a possible implementation manner, the transmission power corresponding to the second power control parameter is greater than the transmission power corresponding to the first power control parameter; or the reliability requirement of the service data corresponding to the second power control parameter is higher than that of the service data corresponding to the first power control parameter; or the priority of the service data corresponding to the second power control parameter is higher than the priority of the service data corresponding to the first power control parameter.

In one possible implementation, the DCI of the second service data is scheduled to be the first DCI format; or, the DCI scheduling the second service data is scrambled by the first RNTI; or, the DCI scheduling the second traffic data is detected in a first search space (search space); alternatively, the DCI scheduling the second traffic data is detected in a first control resource set (CORESET).

In a possible implementation, the frequency domain location of the second time-frequency resource is the same as the frequency domain location of the third time-frequency resource.

For example, referring to fig. 1, it is assumed that the base station sends first information to the terminal device, where the first information is used to instruct the terminal device to send eMBB service data (first service data) according to the first power control parameter, the first service data is carried in first time-frequency resources, frequency-domain resources of the first time-frequency resources may be

subcarriers

7 and 8, and the time-domain resources are symbols 0 to 13, and include 2 × 14 ═ 28 resource units in total. When the terminal device starts to transmit the eMBB service data (for example, when the terminal device starts to transmit the corresponding eMBB service data in the first resource unit), the base station sends second information to the terminal device, where the second information is used to instruct the terminal device to send URLLC service data according to the second power control parameter, the second service data is carried on the second time-frequency resource, the frequency-domain resource of the second time-frequency resource may be

subcarriers

7 and 8, the time-domain resource is

symbols

4 and 5, and includes 4 resource units in total. This multiplexing scheme may be referred to as URLLC service data seizing transmission resources of eMBB service data. For the eMBB service preempted by 4 transmission resource units, the terminal device may perform puncturing or rate matching accordingly.

In a possible implementation manner, the frequency domain position of the second time frequency resource is different from the frequency domain position of the third time frequency resource, and the phase of the second part of the terminal device that transmits the second service data on the second time frequency resource and the phase of the second part of the first service data on the fifth time frequency resource are consecutive.

For example, referring to fig. 2, it is assumed that the base station sends first information to the terminal device, where the first information is used to instruct the terminal device to send eMBB service data (first service data) according to the first power control parameter, the first service data is carried in first time-frequency resources, frequency-domain resources of the first time-frequency resources may be

subcarriers

7 and 8, and the time-domain resources are symbols 0 to 13 and collectively include 2 × 14 — 28 resource units. When the terminal device starts to transmit the eMBB service data (for example, when the terminal device starts to transmit the corresponding eMBB service data in the first resource unit), the base station sends second information to the terminal device, where the second information is used to instruct the terminal device to send URLLC service data according to the second power control parameter, the second service data is carried on the second time-frequency resource, the frequency-domain resource of the second time-frequency resource may be

subcarriers

2 and 3, the time-domain resource is

symbols

4 and 5, and the total includes 4 resource units. eMBB traffic data may not be transmitted for 4 resource units consisting of

subcarriers

7 and 8 and

time domain symbols

4 and 5. For the eMBB service of 4 transmission resource units not performing data transmission, the terminal device may perform puncturing or rate matching accordingly.

In a second aspect, an embodiment of the present application provides a power control method. The execution subject of the method may be a network device, or a chip or a module applied to the network device, and the following description takes the network device as the execution subject, and the method includes: the network equipment sends first information, wherein the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter, and the first service data is borne on the first time-frequency resource; the network equipment sends second information; the second information is used for indicating the terminal equipment to send second service data according to the second power control parameter, the second service data is borne on a second time-frequency resource, the time domain position of the second time-frequency resource is the same as the time domain position of a third time-frequency resource, and the third time-frequency resource is part of the first time-frequency resource; the network equipment receives second service data from the terminal equipment on a second time-frequency resource, wherein the second service data is sent according to a third power control parameter; and receiving a first part of the first service data from the terminal equipment on a fourth time-frequency resource, wherein the first part of the first service data is sent according to a third power control parameter, the fourth time-frequency resource comprises a time-frequency resource of which the time domain is later than that of the second time-frequency resource in the first time-frequency resource, and the third power control parameter is related to the second power control parameter.

In one possible implementation, the method further includes: and the network equipment receives a second part of the first service data from the terminal equipment on a fifth time-frequency resource, wherein the second part of the first service data is sent according to the third power control parameter, and the fifth time-frequency resource comprises a time-frequency resource of which the time domain is earlier than that of the second time-frequency resource in the first time-frequency resource.

In one possible implementation, the third power control parameter is the same as the second power control parameter. That is, the network device may receive the second service data and the first part of the first service data from the terminal device, where the second service data and the first part of the first service data are both sent using the second power control parameter, and if the first condition is satisfied, the network device may also receive the second part of the first service data from the terminal device, and the second part of the first service data may also be sent using the second power control parameter.

In one possible implementation, the DCI of the second service data is scheduled to be the first DCI format; or, the DCI scheduling the second service data is scrambled by the first RNTI; or, the DCI scheduling the second traffic data is detected in the first search space; alternatively, the DCI scheduling the second service data is detected in the first CORESET.

In a third aspect, an embodiment of the present application provides a terminal device, including: a receiving unit configured to receive first information; the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter, and the first service data is loaded on the first time-frequency resource; the receiving unit is further configured to receive second information, where the second information is used to instruct the terminal device to send second service data according to the second power control parameter, the second service data is carried on a second time-frequency resource, a time-domain position of the second time-frequency resource is the same as a time-domain position of a third time-frequency resource, and the third time-frequency resource is a part of the time-frequency resources in the first time-frequency resource; and the sending unit is used for sending second service data in a second time-frequency resource according to the third power control parameter and sending the first part of the first service data in a fourth time-frequency resource according to the third power control parameter, wherein the fourth time-frequency resource comprises the time-frequency resource of which the time domain is later than the second time-frequency resource in the first time-frequency resource, and the third power control parameter is related to the second power control parameter.

In a possible implementation manner, the sending unit is further configured to: if the first condition is met, sending a second part of the first service data in a fifth time-frequency resource according to the third power control parameter; wherein the fifth time frequency resource comprises a time frequency resource of which the time domain is earlier than the second time frequency resource in the first time frequency resource, and the first condition comprises: before the terminal equipment sends the first service data, the second service data based on the configuration authorization or the scheduling authorization is obtained through the receiving unit.

In one possible implementation, the third power control parameter is the same as the second power control parameter.

In a possible implementation manner, the frequency domain position of the second time frequency resource is different from the frequency domain position of the third time frequency resource, and the phase of the second part for transmitting the second service data on the second time frequency resource and the phase of the second part for transmitting the first service data on the fifth time frequency resource are consecutive.

In a fourth aspect, an embodiment of the present application provides a network device, including: a transmitting unit configured to transmit first information; the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter, and the first service data is loaded on the first time-frequency resource; the sending unit is further configured to send second information, where the second information is used to instruct the terminal device to send second service data according to the second power control parameter, the second service data is carried on a second time-frequency resource, a time-domain position of the second time-frequency resource is the same as a time-domain position of a third time-frequency resource, and the third time-frequency resource is a part of the time-frequency resources in the first time-frequency resource; a receiving unit, configured to receive second service data from the terminal device on a second time-frequency resource, where the second service data is sent according to a third power control parameter; the receiving unit is further configured to receive a first portion of the first service data from the terminal device on a fourth time-frequency resource, where the first portion of the first service data is sent according to a third power control parameter, the fourth time-frequency resource includes a time-frequency resource in the first time-frequency resource, where a time domain of the fourth time-frequency resource is later than that of the second time-frequency resource, and the third power control parameter is related to the second power control parameter.

In a possible implementation manner, the receiving unit is further configured to: and receiving a second part of the first service data from the terminal equipment on a fifth time-frequency resource, wherein the second part of the first service data is sent according to the third power control parameter, and the fifth time-frequency resource comprises a time-frequency resource of which the time domain is earlier than that of the second time-frequency resource in the first time-frequency resource.

In a fifth aspect, an embodiment of the present application provides a power control method. The execution subject of the method may be a terminal device, or a chip or a module applied to the terminal device, and the following description takes the terminal device as the execution subject, and the method includes: the terminal equipment receives first information, wherein the first information is used for indicating the terminal equipment to send first service data according to a first power control parameter, and the first service data is borne on a first time-frequency resource; the terminal equipment receives second information, wherein the second information is used for indicating the terminal equipment to send second service data according to a second power control parameter, the time domain position of a second time frequency resource borne by the second service data on the second time frequency resource is the same as the time domain position of a third time frequency resource, and the third time frequency resource is part of the time frequency resource in the first time frequency resource; and the terminal equipment sends second service data in a second time-frequency resource according to the second power control parameter, and sends the first part of the first service data in a fourth time-frequency resource according to the first power control parameter, wherein the fourth time-frequency resource comprises a time-frequency resource of which the time domain is later than that of the second time-frequency resource in the first time-frequency resource, the Nth time-domain symbol position in the fourth time-frequency resource is punched and added with a reference signal, and N is an integer greater than or equal to 0.

In one possible implementation, N may be protocol predefined; alternatively, N may be configured through signaling. For example, N may be explicitly indicated by the second information or the third information. For example, the value of N may be indicated by a preset bit in the second information or the third information. Wherein the third information may be information different from the first information and the second information.

In a possible implementation manner, the frequency domain position of the second time-frequency resource and the frequency domain position of the third time-frequency resource may be the same or different.

In a sixth aspect, an execution subject of the method may be a network device, or a chip or a module applied to the network device, and the following description takes the network device as the execution subject, and the method includes: the network equipment sends first information, wherein the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter, and the first service data is borne on the first time-frequency resource; the network equipment sends second information, the second information is used for indicating the terminal equipment to send second service data according to the second power control parameter, the second service data is borne on a second time-frequency resource, the time domain position of the second time-frequency resource is the same as the time domain position of a third time-frequency resource, and the third time-frequency resource is part of the time-frequency resource in the first time-frequency resource; the network equipment receives second service data from the terminal equipment at a second time-frequency resource, wherein the second service data is sent according to a second power control parameter; the network device receives a first part of first service data from the terminal device at a fourth time-frequency resource, wherein the first part of the first service data is sent according to the first power control parameter, the fourth time-frequency resource comprises a time-frequency resource with a time domain later than that of the second time-frequency resource in the first time-frequency resource, an nth time-domain symbol position in the fourth time-frequency resource is punctured and added with a reference signal, and N is an integer greater than or equal to 0.

In a seventh aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may implement the method in the first aspect or any possible implementation manner of the first aspect; alternatively, the communication device may implement the method of the fifth aspect or any possible implementation of the fifth aspect. The communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.

In one possible design, the communication device includes a processor and a communication interface, and the processor is configured to control the communication interface to communicate with other devices or modules. The communication device may also include a memory coupled to the processor for storing programs or instructions that the processor needs to execute.

In one possible design, the communication device is a chip applied to a terminal device.

In one possible design, the communication device is a terminal device.

In an eighth aspect, embodiments of the present application provide a communication apparatus, where the communication apparatus may implement the method in the second aspect or any possible implementation manner of the second aspect; alternatively, the communication device may implement the method of the sixth aspect or any possible implementation manner of the sixth aspect. The communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.

In one possible design, the communication device is a chip applied to a network device.

In one possible design, the communication device is a network device.

In a ninth aspect, an embodiment of the present application provides a computer-readable storage medium, where the storage medium stores instructions that, when executed, implement the method in the first aspect or any possible implementation manner of the first aspect; or, implementing the method of the fifth aspect or any possible implementation manner of the fifth aspect.

In a tenth aspect, embodiments of the present application provide a computer-readable storage medium, where instructions are stored, and when executed, implement the method in the second aspect or any possible implementation manner of the second aspect; or implementing the method of the sixth aspect or any possible implementation manner of the sixth aspect.

In an eleventh aspect, embodiments of the present application provide a computer program product containing instructions that, when executed, implement the method of the first aspect or any possible implementation manner of the first aspect; or, implementing the method of the fifth aspect or any possible implementation manner of the fifth aspect.

In a twelfth aspect, embodiments of the present application provide a computer program product containing instructions that, when executed, implement the method of the second aspect or any possible implementation manner of the second aspect; or implementing the method of the sixth aspect or any possible implementation manner of the sixth aspect.

Drawings

Fig. 1 is a schematic diagram of time-frequency resources respectively corresponding to an eMBB service and a URLLC service in the prior art;

fig. 2 is a schematic diagram of time-frequency resources respectively corresponding to another eMBB service and a URLLC service in the prior art;

fig. 3 is a schematic diagram of time-frequency resources corresponding to an eMBB service and a reference signal in the prior art;

fig. 4 is a diagram illustrating a transmitting party transmitting data to a receiving party in the prior art;

FIG. 5 is a diagram illustrating a relation between a block error rate and a signal-to-interference ratio in the prior art;

FIG. 6 is a diagram illustrating phase discontinuity of data in a continuous transmission according to the prior art;

fig. 7 is a schematic diagram of a system architecture suitable for a power control method according to an embodiment of the present application;

fig. 8 is a schematic signal interaction diagram suitable for a power control method according to an embodiment of the present application;

fig. 9 is a schematic diagram of multiplexing transmission of first service data and second service data according to an embodiment of the present application;

fig. 10 is a schematic diagram of multiplexing transmission of first service data and second service data according to an embodiment of the present application;

fig. 11 is a schematic diagram of multiplexing transmission of still another first service data and second service data according to an embodiment of the present application;

fig. 12 is a schematic signal interaction diagram of another method for power control according to an embodiment of the present application;

fig. 13 is a schematic diagram of multiplexing transmission of still another first service data and second service data according to an embodiment of the present application;

fig. 14 is a schematic signal interaction diagram of another method for power control according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of another terminal device provided in the embodiment of the present application;

fig. 17 is a schematic structural diagram of another terminal device according to an embodiment of the present application;

fig. 18 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of another network device according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of another network device according to an embodiment of the present application;

fig. 21 is a system diagram of a power control method according to an embodiment of the present disclosure.

Detailed Description

For clarity and conciseness of the following description of the various embodiments, a brief introduction to related concepts or technologies is first presented:

in a wireless communication system, uplink transmission generally employs a grant-based mode, that is, User Equipment (UE) has data to transmit, and may request a base station for transmission resources and transmission parameters in a manner agreed on the agreed resources, where the base station determines the transmission resources and transmission parameters for the terminal equipment based on a request sent by the terminal equipment, and sends the transmission resources and transmission parameters to the user equipment through a control signaling. And the terminal equipment transmits data according to the transmission resources and the transmission parameters indicated by the base station. In 5G communication, a new transmission mode is proposed in the industry, namely, no dynamic scheduling uplink transmission (uplink transmission with dynamic scheduling), which is also called as an uplink transmission with dynamic scheduling grant (uplink transmission with scheduled grant) or a configuration grant uplink transmission (uplink transmission with configured grant) or a grant-free uplink transmission (grant-free transmission), which is called as a grant-free mode for short. In the grant-free mode, a base station and a terminal device determine some resources in advance through Radio Resource Control (RRC) signaling, when data arrives at the terminal device, the base station may choose not to apply for transmission resources from the base station, but directly use time-frequency resources pre-configured by the base station to send service data, and the base station performs blind detection on the configured resources to implement data reception. This can greatly reduce signaling overhead and shorten data transmission delay.

When the terminal device needs to send data, the corresponding time-frequency resource can be matched for the data to be sent. In an Orthogonal Frequency Division Multiplexing (OFDM) system, a time-frequency resource may be divided into a plurality of grids. The sender maps the original information to be sent in the grids for transmission after certain processing, and the receiver can receive and restore the original information on the corresponding grids.

As shown in fig. 3, it is assumed that the frequency domain resources allocated by the base station for one eMBB service are

subcarriers

7 and 8, and the time domain resources are symbols 0 to 13, for a total of 24 resource units (24 grids). The sender may map data of the eMBB service in the time-frequency resources (i.e., the 24 grids) and send the data to the receiver. Specifically, the sender may send the data in the time-frequency resource to the receiver through the wireless air interface medium via electromagnetic waves. In the present application, the symbol n represents a time domain symbol with index n; subcarrier m denotes the subcarrier with index m. Wherein m and n are integers greater than or equal to 0.

In this application, for the transmission of uplink information, the sender may be a terminal device or a chip applied to the terminal device or a module applied to the terminal device, and the receiver may be a base station or a chip applied to the base station or a module applied to the base station.

Uplink power control in NR system: as shown in fig. 4, a transmitting side may transmit data to a receiving side through a wireless air interface medium (also referred to as a wireless channel) by electromagnetic waves. It will be appreciated that there is a loss of transmission of the signal over the wireless air interface medium, and that sources at greater distances will generally require greater transmit power to ensure that the signal is correctly demodulated when it reaches the receiver. In uplink communication in a wireless system, taking the example that terminal devices send information to a base station, if each terminal device transmits at full power, a large amount of interference is generated to other terminal devices in a cell or in an adjacent cell, and the power consumption of the terminal device is severe. Therefore, a power control mechanism is needed to adjust the transmission power of the terminal device, so that the base station can correctly demodulate and decode the received information and reduce the transmission power of the terminal device as much as possible. Therefore, the correct transmission of the information is ensured, and the power consumption of the terminal equipment is reduced. In the power control mechanism of the existing NR system, a base station generally generates a power control command according to signal strength or signal quality information received by the base station, and sends the power control command to a terminal device, and the terminal device adjusts transmission power according to the power control command.

Taking a Physical Uplink Shared Channel (PUSCH) in the NR as an example, a power control formula of the PUSCH is shown in formula (1):

wherein c is a serving cell, i is a transmission period of a PUSCH, j is identification information of a power control parameter, l is a power control adjustment state index, f is a carrier, q is_dReference signal resource, P, utilized by a terminal device_{PUSCH，f，c}For transmission power of PUSCH in serving cell, P_CMAX，f，cMaximum power allowed for the terminal device to transmit on the carrier and serving cell (referred to as maximum power for the terminal device), P_{O_PUSCH，f，c}Target power for receiving data of terminal device for network deviceIs from a cell level target power P_{O_NOMINAL_PUSCH}And UE level target power P_{O_UE_PUSCH}In the above-mentioned manner and the composition thereof,

for transmission bandwidth of PUSCH allocated to terminal equipment, α_f，cIs a path loss compensation factor, PL_f，cIs a value of path loss, Δ_TF，f，cAs modulation mode offset, Δ_TF，f，cPower when control information is transmitted in PUSCH, f_f，cFor closed loop power control adjustment, f_f，c(i,l)＝f_f，c(i-1,l)+δ_{PUSCH，f，c}(i-K_PUSCH，l)，δ_{PUSCH，f，c}For absolute power correction or cumulative power correction, i-K_PUSCHTo transmit delta_{PUSCH，f，c}μ is the subcarrier spacing and cyclic prefix number.

As can be seen from equation (1), the power control parameter corresponding to the PUSCH may include: maximum power of terminal equipment, cell level target power, UE level target power, path loss compensation factor, modulation mode offset, absolute power correction value and the like. As can be seen, the power control parameter corresponding to the PUSCH may include one or more parameters indicating the power size that the terminal device needs to transmit, for example, a cell-level target power, a UE-level target power, a pathloss compensation factor, a modulation scheme offset, an absolute power correction value, and the like. The power control parameters corresponding to the PUSCH may further include one or more parameters for limiting functions such as an upper limit of transmission power, for example, a maximum power of the terminal device. That is, the power control parameter corresponding to the PUSCH can be considered as (a set of) parameters related to the transmission power.

Different types of service data may use different sets of power control parameters in uplink transmission. For example, in a 5G NR system, eMBB and URLLC traffic data require a block error rate (BLER) of less than 10% and 0.001%, respectively. The terminal device may use higher transmit power to satisfy the BLER requirement of the service for service data with higher transmission reliability requirement, i.e., service data requiring a BLER to reach a smaller target value.

Under certain channel conditions, the BLER has a certain relationship with a signal to interference noise ratio (SINR), which may be referred to as a signal to interference noise ratio (SINR). One of the most direct methods to change the SINR is to adjust the transmit power. For example, as shown in fig. 5, if the terminal device needs to send the eMBB service data and needs to achieve the target of 10% of the block error rate, it may be expected that the SINR received by the base station is not less than 3dB, and the transmission power of the terminal device may be adjusted to P1; if the terminal device needs to send URLLC service data and needs to reach the target of 0.001% block error rate, the SINR received by the base station can be expected to be not less than 7dB, and the transmission power of the terminal device can be adjusted to P2. Wherein P2 is greater than P1.

It should be noted that besides different reliability requirements for eMBB and URLLC service data, many service data studied in NR have different reliability requirements, for example, the reliability of service data of part of wireless sensor network needs to reach 99.9%, and the reliability of service data of part of industrial control needs to reach 99.9999%. Therefore, the power control parameters in the present application are not limited to use for transmitting eMBB traffic data and URLLC traffic data.

Signal variation and Reference Signal (RS) in wireless communication: in the process of transmitting signals, it is not enough to ensure enough power, because the signals modulated by the information source pass through the device and the wireless channel, and the signals are changed. In order to ensure that the receiver can restore the original information of the transmitting end through the received signal, the receiver needs to know the radio channel information of the transmission. This can be achieved by adding a reference signal known to both parties to the transmission, e.g., a demodulation reference signal (DMRS).

For example, in an eMBB service data transmission, in one timeslot, both symbols for carrying eMBB service data and symbols for carrying DMRS are included. The terminal device may map the reference signal at the appointed position according to the indication of the base station or default configuration. As shown in fig. 3, the reference signal may be mapped on time-domain symbol 2,

subcarriers

7 and 8, while the eMBB traffic data is mapped on the remaining time-domain symbols of the 14 time-domain symbols of the slot except for time-domain symbol 2, and frequency-domain mapped on

subcarriers

7 and 8. The position of the reference signal is usually at the front of one slot for the purpose of receiver timing, etc. In a scene with fast channel change, such as high-speed mobile, an additional demodulation reference signal (additional DMRS) is further provided at a relatively later position in the time slot, so as to provide channel information closer to the part of symbols for later symbol demodulation. After receiving the uplink data sent by the terminal equipment, the base station can perform channel estimation through the received DMRS to obtain channel information, and then decode the received data according to the channel information to obtain original information.

The use of the reference signal has two points: (1) within a range of time-frequency resources, the channel information reflected by the reference signal may be used for other resources within the range. Data transmitted within this range may also be considered to have undergone an approximate wireless channel, forming an approximate change. (2) The variation of the signal in the device and the wireless channel may be reflected in phase. For a continuous transmission, the phase between symbols needs to be continuously changed, so that the channel information estimated on a certain symbol can be used for demodulation of data on other symbols.

It should be understood that if the phase between two parts of symbols in one continuous transmission is not continuously changed, the channel information obtained on one part of symbols cannot be used for data demodulation on the other part of symbols, i.e. the two parts of symbols need to be demodulated according to respective reference signals. In the present application, a single continuous transmission, which may also be referred to as a single complete transmission, may include one transmission unit, or may include an interval composed of a plurality of transmission units that can be demodulated using the same channel estimation result.

In the NR system, the same terminal device may transmit two types of service data simultaneously, and power control parameters corresponding to the two types of service data may be different, so that when the power of the terminal device changes, phases of two adjacent symbols are discontinuous, and part of data cannot be demodulated.

For example, as shown in fig. 6, it is assumed that in one continuous transmission, URLLC traffic data occupies a part of time domain resources for transmitting eMBB traffic data, and thus the eMBB traffic data is divided into two parts in the time domain, i.e., an a part and a B part. The frequency domain resources of the part a and the part B are the same, the time domain resources of the part a include symbols 0 to 3, and the time domain resources of the part B include symbols 6 to 13. The time domain resource of URLLC service data includes

symbols

4 and 5, and the frequency domain resource of URLLC service data may be the same as or different from the frequency domain position of part a (or part B). Because the power control parameters corresponding to the eMBB service and the URLLC service are different, when the terminal device sends URLLC service data, a power change occurs on symbol 4. Similarly, when the terminal equipment transmits the B part of the eMBB service data at symbol 6, the power change occurs again. When the base station receives the a part of the eMBB service data transmitted by the terminal device, the base station may demodulate using the reference signal on the symbol 2, and when the base station receives the URLLC service transmitted by the terminal device, the base station may demodulate using the reference signal on the symbol 4. Although the symbol interval of the part B of the eMBB service data can maintain the continuity between the symbols of the part B, the part B does not have a reference signal for demodulation, and the phase of the part B of the eMBB service data is not continuous with the phase of the part a of the eMBB service data, and the phase of the part B of the eMBB service data is not continuous with the phase of the URLLC service data, and the part B of the eMBB service data cannot be demodulated using the reference signal on the symbol 2 or the reference signal on the symbol 4, so that the part B of the eMBB service data cannot be demodulated and decoded, which causes a large waste of resources and affects the eMBB service. Especially for the typical eMBB service data occupying more symbols and URLLC service data occupying less symbols, if the URLLC service data is transmitted at a front position, a large amount of eMBB service data behind the URLLC service data will be wasted.

A brief introduction is made to the basic concept of puncturing and rate matching in the resource multiplexing process. In a wireless communication system, a base station may schedule data transmission and send a scheduling result to a terminal device, where the scheduling result includes a resource location and a transmission format of the data transmission. For example, after the terminal device sends the transmission request of the first service data, the base station indicates that the terminal device can use the first time-frequency resource to send the first service data, and after receiving the indication, the terminal device receives an indication to send the second service data or the second service data arrives. At this time, the terminal device may transmit the second service data using a portion of the time-frequency resources in the first time-frequency resources. It is assumed that the second service data is carried on a second time-frequency resource, which is a part of the first time-frequency resource. The terminal device may perform resource mapping on the first service data that needs to be sent originally in the second time-frequency resource, and map the data to other time-frequency resources except the second time-frequency resource in the first time-frequency resource for sending, which may be referred to as rate matching.

Since the rate matching process needs to map the resources again, the processing time is relatively long. In some scenarios, when the terminal device is not in time to perform resource multiplexing in the rate matching manner, the terminal device may perform resource multiplexing in the puncturing manner. The terminal device may directly "replace" the first service data that is originally to be sent in the second time-frequency resource with the second service data, which may be understood that the first service data in the second time-frequency resource is "punctured".

For example, when the terminal device needs to feed back Uplink Control Information (UCI) when transmitting data on the PUSCH, the terminal device may "replace" part of the data on the PUSCH with the UCI in a puncturing manner. The punching only needs to replace the data at the position needing punching, does not need to map the resources again, and has short processing time. Correspondingly, the original data which is punctured and replaced is discarded, but the importance of the signal after the puncturing is replaced is higher, the puncturing resource is limited relative to the whole transmission resource, and the relative influence is smaller.

The embodiment of the application provides a power control method and a power control device, which are applied to a scene of multiplexing transmission of two or more service data in one terminal device. For example, the present invention is applied to a scenario of data multiplexing transmission for eMBB and URLLC services in 5G NR, a scenario of data multiplexing transmission for URLLC services with two different priorities or reliabilities in 5G NR, or a scenario of data multiplexing transmission for eMBB services with two different priorities or reliabilities in 5G NR, which is not limited in the present application.

As shown in fig. 7, a communication system architecture provided for the embodiment of the present application includes a network device (e.g., a base station) and a terminal device. The terminal equipment can receive first information and second information sent by the base station; the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter, and the first service data is loaded on the first time-frequency resource; the second information is used for indicating that second service data is sent according to the second power control parameter, the second service data is borne on a second time-frequency resource, the time domain position of the second time-frequency resource is the same as the time domain position of a third time-frequency resource, and the third time-frequency resource is part of the first time-frequency resource. The terminal device may send the second service data in the second time-frequency resource according to the third power control parameter, and send the first portion of the first service data in a fourth time-frequency resource according to the third power control parameter, where the fourth time-frequency resource includes a time-frequency resource in the first time-frequency resource, the time domain of which is later than that of the second time-frequency resource, and the third power control parameter is related to the second power control parameter.

A base station is a device that can communicate with a terminal device. The base station may be an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the radio access network device.

The Terminal device may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in home (smart home), and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

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. In the description of the present application, unless otherwise specified, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In the description of the text of the present application, the character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula of the present application, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

In addition, the network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

For the sake of understanding, the following describes the positioning method provided by the embodiments of the present application in detail with reference to the accompanying drawings.

As shown in fig. 8, an embodiment of the present application provides a power control method, including:

801. the network device sends first information, wherein the first information is used for indicating the terminal device to send first service data according to the first power control parameter, and the first service data is loaded on the first time-frequency resource.

The first information may be sent by the base station to the terminal device through a high-level signaling, may also be sent by the base station to the terminal device through a physical layer signaling, and may also be pre-configured fixed information. The allocation of the first time-frequency resource may also be notified to the terminal device by higher layer signaling or physical layer signaling. The first information and the allocation of the first time-frequency resource may be carried on the same signaling or may be carried on different signaling. In the present application, the higher layer signaling may be Radio Resource Control (RRC) signaling or may be Media Access Control (MAC) Control Element (CE); the physical layer signaling may be Downlink Control Information (DCI) carried on a Physical Downlink Control Channel (PDCCH); the RRC signaling may be a broadcast message or a system message.

It should be noted that the first power control parameter may include one or more parameters for indicating the amount of power that the terminal device needs to transmit; for example, the target power of the cell level, the target power of the UE level, the path loss compensation factor, the modulation scheme offset, and the absolute power correction value. Optionally, the first power control parameter may further include one or more parameters for limiting the upper limit of the transmission power; e.g., maximum power of the terminal device, etc. I.e. the first power control parameter may be considered as (a) set of transmit power related parameters.

802. The terminal device receives the first information.

It should be noted that, in the grant-based mode, if the terminal device has first service data to be sent, the terminal device may request the base station for transmission resources and transmission parameters, and the base station determines corresponding transmission resources and transmission parameters for the terminal device based on the request of the terminal device, and issues the first information to the user device through the control signaling. After receiving the first information, the terminal device may send first service data according to the first power control parameter, where the first service data may be carried on the first time-frequency resource. In the grant-free mode, the base station may pre-configure the first information for the terminal device, so that when the terminal device has first service data to be sent, the first service data may be directly sent according to the first power control parameter, and the first service data may be carried on the first time-frequency resource.

For example, when the terminal device has eMBB traffic data to send, transmission resources and transmission parameters may be requested from the base station. The base station may issue the first information to the ue through control signaling, where the first information may be an eMBB service scheduling information sent by the base station.

803. And the network equipment sends second information, wherein the second information is used for indicating the terminal equipment to send second service data according to the second power control parameter, and the second service data is borne on a second time-frequency resource.

The second information may be sent by the base station to the terminal device through a high-level signaling, may also be sent by the base station to the terminal device through a physical layer signaling, and may also be pre-configured fixed information.

For example, the second information may be a URLLC traffic scheduling information transmitted by the base station. Alternatively, the second information may be scheduling information pre-configured by the base station for the terminal device, so that when the terminal device has URLLC data to be transmitted, the corresponding URLLC service data may be transmitted according to the scheduling information.

The second power control parameter may refer to the description related to the first power control parameter in step 801, and is not described herein again.

804. The terminal device receives the second information.

In one possible design, the signaling used to schedule the first traffic data and the signaling used to schedule the second traffic data are different. For example, the DCI scheduling the first service data is different from the DCI scheduling the second service data in format, the DCI scheduling the second service data is in the first DCI format, and the DCI scheduling the first service data is in the second DCI format. Alternatively, DCI scheduling the first traffic data may be scrambled by the first RNTI, e.g., using C-RNTI; the DCI scheduling the second traffic data may be scrambled by the second RNTI, e.g., using MCS-C-RNTI or a new RNTI. Or, the DCI scheduling the second service data is detected in a first CORESET, and the DCI scheduling the first service data is detected in a second CORESET, where the first CORESET is different from the second CORESET. Alternatively, the DCI scheduling the second traffic data is detected in a first search space and the DCI scheduling the first traffic data is detected in a second search space, the first search space being different from the second search space. Alternatively, one or more bits may be added to the DCI for scheduling the service data to indicate different services. For example, a bit is added to DCI for scheduling service data, and when the bit is a first value, the bit is used to schedule the first service data, and when the bit is a second value, the bit is used to schedule the second service data. Wherein the first value and the second value are different. The CORESET is a block of time-frequency resources of the PDCCH for blind detection by the terminal equipment, and the search space refers to some possible combination choices of the PDCCH for blind detection attempted by the terminal equipment in a certain CORESET. The terminal can be configured with a plurality of CORESETs, each CORESET can be configured with a plurality of search spaces, and different service types can be distinguished by distinguishing the CORESET in which the PDCCH is positioned and/or the search spaces.

In one possible design, the second power control parameter corresponding to the second traffic data is different from the first power control parameter corresponding to the first traffic data. For example, the transmission power corresponding to the second power control parameter is greater than the transmission power corresponding to the first power control parameter. It will be appreciated that the transmit power calculated from the second power control parameter is greater than the transmit power calculated from the second power control parameter. Or the reliability requirement of the service data corresponding to the second power control parameter is higher than the reliability requirement of the service data corresponding to the first power control parameter. The service data corresponding to the second power control parameter is the second service data, and the service data corresponding to the first power control parameter is the first service data. For example, DCI scheduling first traffic data may be scrambled by a first RNTI, e.g., using C-RNTI; the DCI scheduling the second traffic data may be scrambled by the second RNTI, e.g., using MCS-C-RNTI or a new RNTI. And because the MCS-C-RNTI or the newly added RNTI corresponds to a lower target BLER modulation coding table than the C-RNTI, the target BLER of the second service data is smaller than that of the first service data, so that the reliability requirement of the second service data is higher than that of the first service data. Or the priority of the service data corresponding to the second power control parameter is higher than the priority of the service data corresponding to the first power control parameter. For example, the DCI scheduling the second traffic data is transmitted by a special DCI format, and the DCI scheduling the first traffic data is transmitted by a DCI format (e.g., DCI format 0-0/DCI format 0-1) of a general uplink grant (grant), so that the priority of the second traffic data is higher than the priority of the first traffic data. Or, in the grant free scene, the arrival time of the second service data is later than the arrival time of the first service data, and after the second service data arrives, the terminal device determines to multiplex the second service data with the scheduled first service data, so that the priority of the second service data is higher than that of the first service data.

It should be noted that, in the grant-based mode, before the terminal device receives the second information, the terminal device has already acquired the second service data, and after receiving the second information, the terminal device may start to send the second service data in the second time-frequency resource. In the grant-free mode, when receiving the second information, the terminal device may obtain information such as a second time-frequency resource and/or a second power control parameter for sending the second service data, but at this time, the terminal device does not necessarily have the second service data to send. Therefore, after the terminal device receives the second information, the terminal device needs to determine whether the second service data is acquired, that is, whether the MAC PDU sent by the MAC layer is received. And if the terminal equipment acquires the second service data, the terminal equipment can start to send the second service data in the second time-frequency resource.

In one possible design, t1 may be assumed to be a symbol start time at which transmission of first traffic data (e.g., eMBB traffic data) starts, and t2 may be assumed to be a time at which the terminal device receives second traffic data based on a configuration grant or acquires a scheduling grant. The time when the scheduling grant is acquired may be a time when the terminal device receives the eMBB scheduling information (first information) sent by the base station and then receives the URLLC scheduling information (second information) sent by the base station in the grant-based mode, where a time slot indicated by the URLLC scheduling information for sending the URLLC service data overlaps with a time slot indicated by the eMBB scheduling information for sending the eMBB service data. It can be understood that the terminal device has already acquired the second service data before the terminal device receives the URLLC scheduling information. The time when the second service data based on the configuration grant is received may be a time when the terminal device receives the MAC PDU of the URLLC service in the grant-free mode in a case where the preconfigured second information has been activated by signaling. When t1 is earlier than t2, i.e., when the terminal device is transmitting the previous portion (second portion) of the first traffic data using the first power control parameters, the terminal device receives the second traffic data. As shown in fig. 9, and referring to step 805 and 806, after the terminal device receives the second service data, the terminal device may use the same power control parameter (i.e., the third power control parameter) to send the second service data and the subsequent portion (the first portion) of the first service data that has not been transmitted. Therefore, the power of the second service data and the later part of the first service data can not be changed, and the later part of the first service data can be demodulated according to the reference signal of the second service data, so that the problem that partial data (the later part of the first service data) can not be demodulated due to phase discontinuity caused by power change is solved.

When t1 is later than t2 and there is a certain time margin between t1 and t2, that is, when the terminal device receives the second information in the grant-based mode or acquires the second traffic data in the grant-free mode, the first traffic data has not started transmission yet, and the time margin between t1 and t2 is sufficient for the terminal device to complete the operation of power setting (matching) on the first traffic data before transmitting the first traffic data. As shown in fig. 10, and referring to step 807 and 808, the terminal device may transmit the second traffic data and the first and second portions of the first traffic data using the same power control parameter (i.e., the third power control parameter). Therefore, the power of the second service data and the first part and the second part of the first service data cannot be changed, and the first part of the first service data can be demodulated according to the reference signal in the second part of the first service data or the reference signal of the second service data, so that the problem that partial data (the first part of the first service data) cannot be demodulated due to phase discontinuity caused by power change is solved.

805. And the terminal equipment sends second service data in the second time-frequency resource according to the third power control parameter, and sends the first part of the first service data in the fourth time-frequency resource according to the third power control parameter.

The time domain position of the second time frequency resource is the same as the time domain position of the third time frequency resource, the frequency domain position of the second time frequency resource may be the same as or different from the time domain position of the third time frequency resource, and the third time frequency resource is part of the first time frequency resource. The fourth time frequency resource comprises a time frequency resource of which the time domain is later than the second time frequency resource in the first time frequency resource. It should be noted that, since the fourth time-frequency resource is a time-frequency resource in which a time domain of the first time-frequency resource is later than that of the second time-frequency resource, the first part for sending the first service data in the fourth time-frequency resource is a latter part of the first service data. And the previous portion (second portion) of the first traffic data is transmitted in a time-frequency resource that is earlier in time domain in the first time-frequency resource than the second time-frequency resource, i.e., a fifth time-frequency resource.

It should be noted that, when the frequency domain position of the second time-frequency resource is different from the frequency domain position of the third time-frequency resource, the phases of the second part of the terminal device that transmits the second service data on the second time-frequency resource and the second part of the first service data on the fifth time-frequency resource are consecutive. That is, when the frequency domain position of the second time-frequency resource is different from the frequency domain position of the third time-frequency resource, the terminal device is capable of ensuring that the phases of the first service data and the second service data are continuous when the terminal device transmits the second service data on the second time-frequency resource and transmits the first service data on the fifth time-frequency resource according to the third power control parameter.

In a possible design, if the terminal device receives the second information and the first service data has already started to be transmitted, the terminal device may send a first part of the first service data in the fifth time-frequency resource according to the first power control parameter before the second service data starts to be transmitted, and then send the second service data in the second time-frequency resource according to the third power control parameter and send a second part of the first service data in the fourth time-frequency resource according to the third power control parameter.

Illustratively, as shown in fig. 9, when t1 is earlier than t2, the terminal device may transmit the previous portion of the first traffic data in the fifth time-frequency resource (the time-domain resource includes symbols 0-3) according to the first power control parameter. Where symbol 2 is used to transmit a reference signal for eMBB traffic data. The terminal device may send URLLC traffic data in the second time-frequency resource (the time-domain resource includes symbols 4, 5) according to the third power control parameter. Wherein, the symbol 5 is used for transmitting a reference signal of URLLC service data. The terminal device may transmit the latter portion of the first traffic data in the fourth time-frequency resource (the time-domain resource includes symbols 6-13) according to the third power control parameter. In this way, the previous portion of the first traffic data may be demodulated from the reference signal at symbol 2. And, since the power control parameters of the second traffic data and the latter part of the first traffic data are the same (i.e. the third power control parameter), the second traffic data and the latter part of the first traffic data can be demodulated according to the reference signal at symbol 5, thereby solving the problem that part of data (the latter part of the first traffic data) cannot be demodulated due to phase discontinuity caused by power change in one continuous transmission.

Wherein the third power control parameter is related to the second power control parameter. Optionally, the third power control parameter may be obtained by performing corresponding calculation by the terminal device according to the second power control parameter. For example, the transmission power corresponding to the third power control parameter may be a fixed value X added or subtracted on the basis of the transmission power corresponding to the second power control parameter, or a predetermined coefficient Y multiplied or divided. Alternatively, the third power control parameter may be the same as the second power control parameter.

Optionally, the third power control parameter may be related to the first power control parameter and the second power control parameter. For example, the third power control parameter may be the one of the first power control parameter and the second power control parameter having the larger transmit power. Alternatively, the third power control parameter may be the one of the first power control parameter and the second power control parameter whose transmission power is smaller. Alternatively, the third power control parameter may be one of the first power control parameter or the second power control parameter that has higher reliability. Alternatively, the third power control parameter may be the less reliable one of the first power control parameter or the second power control parameter. The method for determining the reliability of the first power control parameter and the second power control parameter may refer to the related description in step 804, which is not described herein again. Alternatively, the third power control parameter may be the higher priority one of the first power control parameter or the second power control parameter. Alternatively, the third power control parameter may be the lower priority one of the first power control parameter or the second power control parameter. The method for determining the priority levels of the first power control parameter and the second power control parameter may refer to the related description in step 804, which is not described herein again. Or, the third power control parameter may be obtained by the terminal device performing corresponding calculation according to the first power control parameter and the second power control parameter. For example, the transmit power corresponding to the third power control parameter may be half of the sum of the transmit powers corresponding to the first and second power control parameters.

In addition, the third power control parameter may be configured through higher layer signaling or physical layer signaling. For example, assume that the third power control parameter comprises a parameter P _ max _ per _ carrier for indicating an upper power limit for a single carrier. The base station may preset a value of P _ max _ per _ carrier in a service multiplexing scenario. When data transmission is multiplexed, the preset P _ max _ per _ carrier value can be used as the upper power limit of a single carrier of two (or more) services multiplexed. Or, the base station may pre-configure different P _ max _ per _ carrier values for services of different requirements of the terminal device through signaling. When the data transmission of two (or more) services with different requirements needs resource multiplexing, the value of P _ max _ per _ carrier corresponding to the service with the highest (most stringent) or lowest requirement can be selected and used as the upper power limit of a single carrier of the multiplexed two (or more) services. For example, the largest or the smallest of the P _ max _ per _ carriers corresponding to two (or more) services may be selected; or, the P _ max _ per _ carrier corresponding to the service data with the highest or lowest reliability in two (or more) services may be selected; alternatively, the P _ max _ per _ carrier corresponding to the service data with the highest or lowest priority in the two (or more) services may be selected.

Further, the third power control parameter may also be explicitly indicated by the second information or the third information. For example, one or more preset bits may be used for indication in the second information or the third information. Wherein the third information may be information different from the first information and the second information.

806. And the network equipment receives second service data sent by the terminal equipment in the second time-frequency resource according to the third power control parameter, and a first part of the first service data sent by the terminal equipment in the fourth time-frequency resource according to the third power control parameter.

It should be noted that, since the previous portion (second portion) of the first service data and the second service data correspond to different power control parameters, respectively, there is no phase continuity between them, and it is necessary to demodulate corresponding data according to different reference signals, respectively. And the second traffic data and the latter part (first part) of the first traffic data correspond to the same power control parameter (i.e., the third power control parameter), so that they have phase continuity therebetween, and the same reference signal can be used to demodulate the corresponding data.

Therefore, the network device can receive the second service data and the latter part of the first service data sent by the terminal device according to the same power control parameter (i.e. the third power control parameter), and the phase continuity of the second service data and the latter part of the first service data cannot be interrupted, so that the base station can perform channel estimation and demodulation decoding on the second service data and the latter part of the first service data by using the same reference signal, thereby avoiding the problem of resource waste and having no great influence on the service.

Illustratively, as shown in fig. 9, the base station may demodulate the second portion of the eMBB traffic data (eMBB traffic data at symbols 0-3) with the eMBB reference signal at symbol 2, and may demodulate the URLLC traffic at

symbols

5, 6 with the reference signal of the URLLC traffic at symbol 4 due to the phase discontinuity caused by the power change between symbols 3, 4 (from the first power control parameter to the third power control parameter). For a first portion of the first traffic data transmitted by the terminal device at the fourth time-frequency resource according to the third power control parameter, which has no continuity in phase with a first half of the first traffic data, the channel estimation result of a second portion of the eMBB traffic data cannot be used for demodulation (i.e., demodulation using the eMBB reference signal at symbol 2). However, power change does not occur between the first part of the eMBB service data and the URLLC service data (the third power control parameter is used), the symbol phase continuity is intact during transmission, and the base station can demodulate the first part of the eMBB service data using the reference signal of the URLLC at symbol 5, thereby avoiding the problem that phase discontinuity causes part of the data (the latter part of the first service data) to be unmodulatable due to power change, and improving transmission efficiency.

In a possible case, if the first condition is satisfied, the method further includes steps 807 and 808.

807. If the first condition is met, the terminal equipment sends the second part of the first service data in a fifth time-frequency resource according to the third power control parameter; and the fifth time frequency resource comprises a time frequency resource of which the time domain is earlier than the second time frequency resource in the first time frequency resource.

Wherein the first condition comprises: before the first service data is sent, the second service data based on the configuration authorization or the scheduling authorization is obtained, that is, t1 is later than t 2. As shown in fig. 10, the terminal device may send the second portion of the first traffic data in the fifth time-frequency resource (the time-domain resource includes symbols 0-3) according to the third power control parameter, send the second traffic data in the second time-frequency resource (the time-domain resource includes symbols 4, 5) according to the third power control parameter, and send the first portion of the first traffic data in the fourth time-frequency resource (the time-domain resource includes symbols 6-13) according to the third power control parameter.

In this way, the network device can receive the first service data and the second service data transmitted by the terminal device according to the same power control parameter (i.e., the third power control parameter), and the phase continuity of the first service data and the second service data is not interrupted. The base station can perform channel estimation and demodulation decoding on the former part and the latter part of the first service data by using the reference signal of the first service data, and perform channel estimation and demodulation decoding on the second service data by using the reference signal of the second service data, so that the problem that the latter part of the first service data cannot be demodulated and decoded is avoided, and the transmission efficiency is improved. Of course, the same reference signal may be used to demodulate the first service data and the second service data. For example, the reference signal of the first service data is uniformly used, or the reference signal of the second service data is uniformly used to demodulate the first service data and the second service data, which is not limited in this application.

808. And the network equipment receives the second part of the first service data sent by the terminal equipment in the fifth time-frequency resource according to the third power control parameter.

Since the second part and the first part of the first traffic data adopt the same power control parameter (third power control parameter), there is no phase discontinuity problem, and the reference signal in the second part of the first traffic data or the reference signal of the second traffic data can be used to demodulate the first part of the first traffic data.

Illustratively, as shown in fig. 10, the base station may demodulate a previous portion of the first traffic data on symbols 0-3 according to the eMBB reference signal at symbol 2, demodulate the second traffic data on

symbols

4, 5 according to the URLLC reference signal at symbol 4, and demodulate a first portion of the first traffic data on symbols 6-13 according to the eMBB reference signal at symbol 2 or the URLLC reference signal at symbol 4. In this way, the problem of phase discontinuity caused by power change is avoided, so that the second traffic data and the first part of the first traffic data can use the same reference signal (for example, using the URLLC reference signal at symbol 4) for channel estimation and demodulation decoding, thereby improving transmission efficiency.

Optionally, as shown in fig. 11, if the additional DMRS exists in the first portion of the first service data, the first portion of the first service data may be demodulated according to the additional DMRS.

It should be noted that, there is no necessary execution sequence between steps 801 to 808, and the execution sequence between the steps is not specifically limited in this embodiment.

Based on the method provided by the embodiment of the present application, the terminal device may send the second service data in the second time-frequency resource according to the third power control parameter, and send the first part of the first service data in the fourth time-frequency resource according to the third power control parameter. In this way, the same power control parameter (i.e., the third power control parameter) is used to transmit the second service data corresponding to the latter part of the first service data, thereby avoiding the problem of phase discontinuity, so that the second service data and the latter part of the first service data can use the same reference signal (e.g., the reference signal of the second service data) for channel estimation and demodulation decoding, and improving transmission efficiency.

If the first condition is satisfied, that is, before the terminal device sends the first service data, the terminal device obtains the second service data, the terminal device may send the second part of the first service data in the fifth time-frequency resource according to the third power control parameter, send the second service data in the second time-frequency resource according to the third power control parameter, and send the first part of the first service data in the fourth time-frequency resource according to the third power control parameter.

In this way, the same power control parameter (i.e., the third power control parameter) is used to transmit the first service data (including the previous part and the next part) corresponding to the second service data, thereby avoiding the problem of phase discontinuity, so that the previous part and the next part of the first service data can use the reference signal of the first service data to perform channel estimation and demodulation decoding, and the second service data uses the reference signal of the second service data to perform channel estimation and demodulation decoding, thereby improving the transmission efficiency. Of course, the same reference signal may be used to demodulate the first service data and the second service data. For example, the reference signal of the first service data is uniformly used to demodulate the first service data and the second service data. Or, the reference signal of the second service data is uniformly used to demodulate the first service data and the second service data, which is not limited in this application.

As shown in fig. 12, an embodiment of the present application provides a power control method, including:

1201. the network device sends first information, wherein the first information is used for indicating the terminal device to send first service data according to the first power control parameter, and the first service data is loaded on the first time-frequency resource.

The specific process may refer to the related description of step 801, which is not described herein again.

1202. The terminal device receives the first information.

The specific process may refer to the related description of step 802, which is not described herein.

1203. And the network equipment sends second information, wherein the second information is used for indicating the terminal equipment to send second service data according to the second power control parameter, and the second service data is borne on a second time-frequency resource.

The specific process may refer to the related description of step 803, which is not described herein again.

1204. The terminal device receives the second information.

The specific process may refer to the related description of step 804, which is not described herein again.

1205. And the terminal equipment sends second service data in a second time-frequency resource according to the second power control parameter, and sends the first part of the first service data in a fourth time-frequency resource according to the first power control parameter.

Wherein, the nth time domain symbol position in the fourth time frequency resource may be punctured and added to the reference signal, that is, the nth time domain symbol position in the latter part (first part) of the first service data may be punctured and added to the reference signal. Wherein N is an integer greater than or equal to 0. For example, the terminal device may puncture the reference signal at the position of the 1 st symbol in the first portion of the first traffic data.

Where N may be protocol predefined. Alternatively, N may be configured through signaling. For example, N may be explicitly indicated by the second information or the third information. For example, a preset bit is used to indicate the value of N in the second information or the third information. Wherein the third information may be information different from the first information and the second information.

The terminal equipment sends the second service data in the second time-frequency resource according to the second power control parameter, and sends the first part of the first service data in the fourth time-frequency resource according to the first power control parameter, and different power control parameters cause phase discontinuity of the second service data and the first part of the first service data. The reference signal is added in the latter part of the first service data in a punching way, so that the latter part of the first service data can carry out channel estimation and demodulation decoding according to the reference signal added in the punching way, the phenomenon that the latter part of the first service data cannot carry out channel estimation and demodulation decoding due to discontinuous phase is avoided, and the transmission efficiency is improved.

For example, as shown in fig. 13, it is assumed that the first service data is eMBB service data, the second service data is URLLC service data, and the two service data divide the time domain position of the first time-frequency resource into three parts. Where the first part (second part) of the first traffic data is transmitted on symbols 0-3, the second traffic data is transmitted on

symbols

4, 5, and the last part (first part) of the first traffic data is transmitted on symbols 6-13. Since the power control parameters corresponding to the first traffic data and the second traffic data are different, the phase between

symbols

3 and 4 is not continuous, and the phase continuity between

symbols

5 and 6 is interrupted again. The eMBB reference signal at symbol 3 may be used for demodulation of a previous portion of the transmitted first traffic data on symbols 0-3. The URLLC reference signal at symbol 5 can be used for demodulation of the transmission of the second traffic data on

symbols

4, 5. Since the latter part (first part) of the first traffic data transmitted on symbols 6-13 cannot be demodulated using the eMBB reference signal at symbol 3 or the URLLC reference signal at symbol 5 due to the phase discontinuity, a reference signal can be punctured and added into the nth symbol (the 1 st symbol, i.e., symbol 6 in one continuous transmission) of symbols 6-13, and can be used to demodulate the first part of the first traffic data transmitted on symbols 6-13.

1206. And the network equipment receives second service data sent by the terminal equipment in the second time-frequency resource according to the second power control parameter and a first part of first service data sent by the terminal equipment in the fourth time-frequency resource according to the first power control parameter.

In one possible design, the network device may further receive a second part (a previous part) of the first service data, which is sent by the terminal device in the fifth time-frequency resource according to the first power control parameter. And the fifth time frequency resource is a time frequency resource of which the time domain is earlier than the second time frequency resource in the first time frequency resource.

Since the second part of the first service data, the second service data, and the first part of the first service data do not have phase continuity, it is necessary to demodulate the corresponding data according to the corresponding reference signals, respectively. The network device may demodulate the second portion of the first traffic data according to the reference signal in the second portion of the first traffic data, demodulate the second traffic data according to the reference signal in the second traffic data, and demodulate the first portion of the first traffic data according to the reference signal in the first portion of the punctured added first traffic data. Therefore, the situation that the latter part of the first service data cannot be subjected to channel estimation and demodulation decoding due to phase discontinuity is avoided, and the transmission efficiency is improved.

Illustratively, as shown in fig. 13, the base station may demodulate the previous portion of the first traffic data on symbols 0-3 according to the eMBB reference signal at symbol 2 and demodulate the second traffic data on

symbols

4, 5 according to the URLLC reference signal at symbol 4. The first portion of the first traffic data is transmitted on symbols 6-13 demodulated from the reference signal punctured at symbol 6.

It should be noted that, there is no necessary execution sequence between steps 1201 and 1206, and the execution sequence between the steps is not specifically limited in this embodiment.

Based on the method provided by the embodiment of the present application, by puncturing the reference signal into the later part (first part) of the first service data, the later part of the first service data can perform channel estimation and demodulation decoding according to the punctured reference signal. The problem that the latter part of the first service data cannot be subjected to channel estimation and demodulation decoding due to phase discontinuity is avoided, and therefore transmission efficiency is improved.

As shown in fig. 14, an embodiment of the present application provides a power control method, including:

1401. the network device sends first information, wherein the first information is used for indicating the terminal device to send first service data according to the first power control parameter, and the first service data is loaded on the first time-frequency resource.

1402. The terminal device receives the first information.

1403. And the network equipment sends fourth information, wherein the fourth information is used for indicating the terminal equipment to send uplink control information according to the fourth power control parameter, and the uplink control information is carried on a sixth time-frequency resource.

And the time domain position of the sixth time frequency resource is the same as the time domain position of part of the time frequency resources in the first time frequency resource. The frequency domain position of the sixth time-frequency resource may refer to the description of the frequency domain position of the second time-frequency resource in step 805, which is not described herein again.

The Uplink Control Information (UCI) may be carried by a Physical Uplink Control Channel (PUCCH) or a PUSCH. The UCI may include a Scheduling Request (SR), an Acknowledgement (ACK)/Negative Acknowledgement (NACK), a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), or a Rank Indicator (RI), and the like.

In a possible design, when there is (non-emergency) first service scheduling information in the terminal device, there is a sudden emergency second service to be scheduled, and the terminal device may send the SR of the second service with the fourth power control parameter on a sixth time-frequency resource configured by the base station. And the first service data is not sent at the time domain position corresponding to the sixth time-frequency resource, that is, the first service data is not sent within the duration of the uplink control information. The uplink control information (SR) of the second service and the transmission of the first service data have a multiplexing relationship similar to that of the first service data and the second service data in the previous embodiment.

And the fourth power control parameter corresponding to the uplink control information is different from the first power control parameter. The transmit power corresponding to the fourth power control parameter may be greater than the transmit power corresponding to the first power control parameter. It is to be understood that the transmit power calculated from the fourth power control parameter is greater than the transmit power calculated from the fourth power control parameter. Or the reliability of the service data corresponding to the fourth power control parameter is higher than the reliability of the service data corresponding to the first power control parameter. Or the priority of the service data corresponding to the fourth power control parameter is higher than the priority of the service data corresponding to the first power control parameter. The method for determining the reliability or the priority of the first power control parameter and the fourth power control parameter may refer to the related description about the reliability of the first power control parameter and the second power control parameter in step 804, which is not described herein again.

1404. The terminal device receives the fourth information.

It should be noted that, when receiving the fourth information, the terminal device may obtain information such as a sixth time-frequency resource and/or a fourth power control parameter for sending the uplink control information, but at this time, the terminal device does not necessarily have uplink control information to send. Therefore, after the terminal device receives the fourth information, the terminal device needs to determine whether the uplink control information needs to be sent. For example, when there is a burst of the emergency second service in the terminal device, the terminal device needs to additionally transmit an SR of the emergency second service.

1405. And the terminal equipment multiplexes the first time-frequency resource to send the first service data and the uplink control information.

In one possible design, if the terminal device starts to transmit (the previous part of) the first service data in the seventh time-frequency resource according to the first power control parameter, then the terminal device needs to transmit the SR to the base station for the second service in emergency. At this time, the terminal device may send the uplink control information in the sixth time-frequency resource according to the fifth power control parameter, and send the latter part of the first service data in the eighth time-frequency resource according to the fifth power control parameter. The seventh time frequency resource is a time frequency resource of which the time domain is earlier than the sixth time frequency resource in the first time frequency resource, and the eighth time frequency resource comprises a time frequency resource of which the time domain is later than the sixth time frequency resource in the first time frequency resource.

In this way, since the same power control parameter (i.e., the fifth power control parameter) is used to transmit the uplink control information and the latter part of the first service data, the problem of phase discontinuity is avoided, so that the same reference signal (the reference signal of the uplink control information) can be used for channel estimation and demodulation decoding of the uplink control information and the latter part of the first service data, thereby improving transmission efficiency.

In another possible design, before the terminal device sends the first service data, if a second service, which is an emergency burst, of the terminal device needs to send an SR to the base station, at this time, the terminal device may send a first part of the first service data in the seventh time-frequency resource according to the fifth power control parameter, send uplink control information in the sixth time-frequency resource according to the fifth power control parameter, and send a second part of the first service data in the eighth time-frequency resource according to the fifth power control parameter. That is, the terminal device may use the same power control parameter (fifth power control parameter) to transmit the uplink control information and the previous part and the subsequent part of the first service data. In this way, since the first service data (including the previous part and the subsequent part) and the uplink control information are transmitted using the same power control parameter (i.e., the fifth power control parameter), the problem of phase discontinuity caused by power change is avoided, so that the first service data and the uplink control information can use their respective reference signals for channel estimation and demodulation decoding, thereby improving transmission efficiency.

In yet another possible design, the terminal device may send a previous part of the first service data in the seventh time-frequency resource according to the first power control parameter, send uplink control information in the sixth time-frequency resource according to the fourth power control parameter, and send a subsequent part of the first service data in the eighth time-frequency resource according to the first power control parameter. The mth time domain symbol position in the eighth time frequency resource is punctured and added to the reference signal. I.e., the position of the mth symbol in the latter portion of the first traffic data may be punctured and added to the reference signal.

Wherein M is an integer greater than or equal to 0. M may be protocol predefined. Alternatively, M may be configured through signaling. For example, M may be explicitly indicated by DCI. For example, it is indicated by one preset bit in DCI.

In this way, the reference signal is punctured and added to the latter part of the first service data, so that the latter part of the first service data can be subjected to channel estimation and demodulation according to the reference signal punctured and added, and the problem that the latter part of the first service data cannot be subjected to channel estimation and demodulation decoding due to phase discontinuity is avoided, thereby improving the transmission efficiency.

1406. And the network equipment receives the first service data and the uplink control information which are sent by the terminal equipment by multiplexing the first time-frequency resource.

In one possible design, the network device demodulates (the previous part of) the first traffic data according to the reference signal of (the previous part of) the first traffic data, and demodulates (the uplink control information and) the latter part of the first traffic data according to the reference signal of the uplink control information.

In this way, the same reference signal (reference signal of the uplink control information) is used to perform channel estimation and demodulation decoding on the uplink control information and the latter part of the first service data, thereby improving transmission efficiency.

In another possible design, the network device demodulates (the previous part and the subsequent part of) the first service data according to the reference signal of the first service data, and demodulates the uplink control information according to the reference signal of the uplink control information. Or the network device demodulates the first service data and the uplink control information according to the reference signal of the first service data, or the network device demodulates the first service data and the uplink control information according to the reference signal of the uplink control information, which is not limited in this application.

In this way, the first service data and the uplink control information may be subjected to channel estimation and demodulation decoding by using respective reference signals of the first service data and the uplink control information, or the first service data and the uplink control information may be subjected to channel estimation and demodulation decoding by using the same reference signal, for example, the first service data and the uplink control information may be subjected to channel estimation and demodulation decoding by uniformly using the reference signal of the first service data or the reference signal of the uplink control information, so that the transmission efficiency is improved.

In yet another possible design, (a previous part of) the first traffic data is demodulated according to a reference signal of the first traffic data, (a previous part of) the first traffic data is demodulated according to a reference signal of the uplink control information, (a next part of) the first traffic data is demodulated according to a reference signal added by puncturing.

In this way, by puncturing the reference signal into the latter part of the first service data, the latter part of the first service data can be subjected to channel estimation and demodulation according to the punctured reference signal, thereby improving transmission efficiency.

The above-mentioned scheme provided by the embodiments of the present application is introduced mainly from the perspective of the terminal device and the network device. It is understood that the terminal device and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the functions. Those skilled in the art will readily appreciate that the algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or a combination of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal device and the network device may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Fig. 15 shows a schematic structural diagram of a possible communication device for implementing the functions of the terminal device in the above embodiments. The communication device may be a terminal device, or may be a chip or a module applied to the terminal device. The communication device includes: a receiving unit 1501 and a transmitting unit 1502. In this embodiment, the receiving unit 1501 is configured to receive first information; the first information is used for indicating the terminal equipment to send first service data according to a first power control parameter, and the first service data is loaded on a first time-frequency resource; the receiving unit 1501 is further configured to receive second information, where the second information is used to instruct the terminal device to send second service data according to a second power control parameter, the second service data is carried on a second time-frequency resource, a time domain position of the second time-frequency resource is the same as a time domain position of a third time-frequency resource, and the third time-frequency resource is a part of the time-frequency resource in the first time-frequency resource; a sending unit 1502, configured to send the second service data in the second time-frequency resource according to a third power control parameter, and send the first portion of the first service data in a fourth time-frequency resource according to the third power control parameter, where the fourth time-frequency resource includes a time-frequency resource in the first time-frequency resource, where a time domain of the fourth time-frequency resource is later than that of the second time-frequency resource, and the third power control parameter is related to the second power control parameter.

Wherein, the receiving unit 1501 may be configured to support the terminal device to execute the processes 802 and 804 in fig. 8; processes 1202 and 1204 in FIG. 12; and processes 1402 and 1404 in fig. 14. Sending unit 1402 may be configured to support the terminal device to perform processes 805 and 807 in fig. 8 and process 1205 in fig. 12; and process 1405 in fig. 14.

Fig. 16 shows a schematic structural diagram of still another possible communication device, which can be used to implement the functions of the terminal equipment in the above embodiments. The communication device may be a terminal device, or may be a chip or a module applied to the terminal device. The communication device includes a processing module 1601, a communication module 1602, and a storage module 1603. The processing module 1601 is used for controlling hardware devices and application software of each part of the terminal device; the communication module 1602 is configured to receive an instruction and/or data sent by another device, and may also send data of the terminal device to the other device; the storage module 1603 is used for storing software programs, storing data, running software, and the like of the terminal device.

The processing module 1601 may be a processing unit, a processor, or a controller, and may be, for example, a Central Processing Unit (CPU), a general processing unit (CPU), a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processing elements can also be combinations that perform computing functions, including for example, one or more combinations of microprocessor elements, DSPs, and combinations of microprocessor elements, and the like. The communication module 1602 may be a transceiver, a transceiver circuit or a communication interface, etc. Storage block 1603 may be a memory.

Fig. 17 shows a schematic structural diagram of yet another possible communication apparatus, which can be used to implement the functions of the terminal device in the above embodiments. The communication device may be a terminal device, or may be a chip or a module applied to the terminal device. The communication device 1700 includes at least one processor 1701, a communication bus 1702, memory 1703, and at least one communication interface 1704.

The processor 1701 may be a CPU, micro-processing unit, ASIC, or one or more integrated circuits for controlling the execution of programs in accordance with the present application.

The communication bus 1702 may include a path that conveys information between the aforementioned components.

Communication interface 1704, using any transceiver or like device, is used for communicating with other devices or modules, such as with a network device.

The memory 1703 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be self-contained and connected to the processing unit by a bus. The memory may also be integrated with the processing unit.

The memory 1703 is used for storing application program codes for executing the present invention, and is controlled by the processor 1701. The processor 1701 is configured to execute the application program code stored in the memory 1703, thereby implementing the functions in the method of the embodiment of the present application.

In particular implementations, the processor 1701 may include one or more CPUs, such as the CPU0 and the CPU1 of fig. 17, as one embodiment.

In particular implementations, terminal device 1700 may include multiple processors, such as processor 1701 and processor 1707 in fig. 17, for example, as an example. Each of these processors may be a single-Core Processor (CPU) or a multi-Core Processor (CPU).

In this implementation, as an embodiment, the terminal device 1700 may further include an output device 1705 and an input device 1706. The output device 1705 is in communication with the processor 1701 and may display information in a variety of ways. For example, the output device 1705 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 1706, which is in communication with the processor 1701, may accept input from a user in a variety of ways. For example, the input device 1706 may be a mouse, keyboard, touch screen device, or sensing device, among others.

Fig. 18 shows a schematic structural diagram of a possible communication device for implementing the functions of the network device in the above embodiments. The communication device may be a network device, or may be a chip or a module applied to a network device. The communication device includes: a transmitting unit 1801 and a receiving unit 1802. In this embodiment of the present application, the sending unit 1801 is configured to send first information; the first information is used for indicating the terminal equipment to send first service data according to the first power control parameter, and the first service data is loaded in the first time-frequency resource; the sending unit 1801 is further configured to send second information, where the second information is used to instruct the terminal device to send second service data according to a second power control parameter, the second service data is carried in a second time-frequency resource, a time-domain position of the second time-frequency resource is the same as a time-domain position of a third time-frequency resource, and the third time-frequency resource is a part of the time-frequency resource in the first time-frequency resource; a receiving unit 1802, configured to receive second service data from a terminal device on a second time-frequency resource, where the second service data is sent according to a third power control parameter; the receiving unit 1802 is further configured to receive a first portion of the first service data from the terminal device on a fourth time-frequency resource, where the first portion of the first service data is sent according to a third power control parameter, the fourth time-frequency resource includes a time-frequency resource in the first time-frequency resource, where the time domain of the fourth time-frequency resource is later than that of the second time-frequency resource, and the third power control parameter is related to the second power control parameter.

The sending unit 1801 may be configured to support the network device to perform processes 801 and 803 in fig. 8, and processes 1201 and 1203 in fig. 12; and processes 1401 and 1403 in fig. 14. Receiving unit 1802 may be used to support a network device performing processes 806 and 808 in fig. 8; process 1206 of FIG. 12; and process 1406 in FIG. 14.

Fig. 19 shows a schematic structural diagram of still another possible communication device for implementing the functions of the network device in the above embodiments. The communication device may be a network device, or may be a chip or a module applied to a network device. The communication device includes a processing module 1901, a communication module 1902, and a storage module 1903. The processing module 1901, the communication module 1902, and the storage module 1903 may refer to the description of the processing module 1601, the communication module 1602, and the storage module 1603, which is not described herein again.

Fig. 20 is a schematic structural diagram of still another possible communication device for implementing the functions of the network device in the above embodiments. The communication device may be a base station, or may be a chip or module applied to a base station. The communication device includes a 2001 portion and a 2002 portion. The 2001 part is mainly used for transmitting and receiving radio frequency signals and converting the radio frequency signals and baseband signals; the 2002 section is mainly used for baseband processing, control of base stations, and the like. Portion 2001 may be generally referred to as a transceiver unit, transceiver circuit, transceiver, or the like. Section 2002 is typically a control center of the base station, which may be referred to generally as a processing unit, for controlling the base station to perform the steps described above with respect to the base station (i.e., network device) in fig. 8, 12, and 14. Reference is made in particular to the description of the relevant part above.

The transceiver unit of part 2001, which may also be referred to as a transceiver, or a transceiver, includes an antenna and a radio frequency unit, where the radio frequency unit is mainly used for radio frequency processing. Alternatively, a device for implementing a receiving function in the 2001 part may be regarded as a receiving unit, and a device for implementing a transmitting function may be regarded as a transmitting unit, that is, the 2001 part includes a receiving unit and a transmitting unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like, and a transmitting unit may be referred to as a transmitter, a transmitting circuit, or the like.

Section 2002 may comprise one or more boards, each board may comprise one or more processing units and one or more memories, the processing units being configured to read and execute programs in the memories to implement baseband processing functions and control of the base station. If a plurality of single boards exist, the single boards can be interconnected to increase the processing capacity. As an optional implementation manner, multiple boards may share one or more processing units, or multiple boards may share one or more memories, or multiple boards may share one or more processing units at the same time. The memory and the processing unit may be integrated together or may be provided separately. In some embodiments, the 2001 portion and the 2002 portion may be integrated or may be provided separately. In addition, all functions in the portion 2002 may be integrated into one chip, or a part of functions may be integrated into one chip, so that another part of functions is integrated into one or more other chips, which is not limited in this application.

The embodiment of the present application further provides a computer-readable storage medium, where the storage medium stores instructions, and when the instructions are executed, the instructions cause a computer to support a terminal device to execute the power control method provided in each of the above embodiments.

The present application further provides a computer program product including instructions stored in the storage medium, where the instructions, when executed, enable a computer to support a terminal device to execute the power control method provided in the foregoing embodiments.

The embodiment of the present application further provides a communication device, which can implement the power control method provided in the foregoing embodiments. The communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.

In one possible design, the communication device is a terminal device.

The embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the storage medium, and when the instructions are executed, the instructions cause a computer to support a network device to execute the power control method provided in the foregoing embodiments.

Embodiments of the present application further provide a computer program product including instructions stored in a storage medium, where the instructions, when executed, enable a computer to support a network device to execute the power control method provided in the foregoing embodiments.

In one possible design, the communication device is a network device.

Referring to fig. 21, the present embodiment provides a system 2100 suitable for a power control method, where the system 2100 is used to implement the power control method in the foregoing method embodiments. The system 2100 includes a terminal device 2101 and a network device 2102.

Therein, the terminal device 2101 and the network device 2102 may implement the functions of the terminal device and the network device in the embodiments shown in fig. 8, 12 and 14, respectively. For example, terminal device 2101 is used to perform processes 802, 804, 805, and 807 in FIG. 8; processes 1202, 1204, and 1205 in fig. 12; processes 1402, 1404, and 1405 in fig. 14; and/or other processes performed by a terminal device for use in the techniques described herein. A network device 2102 for performing processes 801, 803, 806, and 808 in fig. 8; processes 1201, 1203, and 1206 in fig. 12; processes 1401, 1403, and 1406 in fig. 14; and/or other processes performed by a network device for use in the techniques described herein.

For the explanation and beneficial effects of the related content in any of the communication apparatuses provided above, reference may be made to the corresponding method embodiments provided above, and details are not repeated here.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

It is clear to those skilled in the art that the descriptions of the embodiments provided in the present application may be referred to each other, and for convenience and brevity of description, for example, the functions and steps of the apparatuses and the devices provided in the embodiments of the present application may be referred to the relevant descriptions of the method embodiments of the present application, and the method embodiments and the device embodiments may be referred to each other.

The above-mentioned embodiments are further detailed to explain the objects, technical solutions and advantages of the present application, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Therefore, any modification, equivalent replacement, improvement and the like made on the basis of the technical scheme of the application shall be included in the protection scope of the application.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In the embodiments of the present application, unless otherwise specified or conflicting with respect to logic, the terms and/or descriptions in different embodiments have consistency and may be mutually cited, and technical features in different embodiments may be combined to form a new embodiment according to their inherent logic relationship.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application. The sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic.

Claims

1. A method of power control, comprising:

receiving first information, wherein the first information is used for indicating a terminal device to send first service data according to a first power control parameter, and the first service data is loaded on a first time-frequency resource;

receiving second information, where the second information is used to instruct the terminal device to send second service data according to a second power control parameter, where the second power control parameter is different from the first power control parameter, the second service data is carried on a second time-frequency resource, a time domain position of the second time-frequency resource is the same as a time domain position of a third time-frequency resource, and the third time-frequency resource is a part of the first time-frequency resource;

sending the second service data in the second time-frequency resource according to a third power control parameter;

and sending the first part of the first service data in a fourth time-frequency resource according to the third power control parameter, wherein the fourth time-frequency resource comprises a time-frequency resource of which the time domain is later than that of the second time-frequency resource in the first time-frequency resource, and the third power control parameter is obtained by the terminal equipment through corresponding calculation according to the second power control parameter.

2. The power control method of claim 1, further comprising:

if a first condition is met, sending a second part of the first service data in a fifth time-frequency resource according to the third power control parameter, wherein the fifth time-frequency resource comprises a time-frequency resource of which the time domain is earlier than that of the second time-frequency resource in the first time-frequency resource, and the first condition comprises:

and acquiring the second service data based on configuration authorization or acquiring scheduling authorization before sending the first service data.

3. The power control method according to claim 1 or 2,

the third power control parameter is the same as the second power control parameter.

4. The power control method according to claim 1 or 2,

the second power control parameter is different from the first power control parameter.

5. The power control method according to claim 1 or 2,

the transmitting power corresponding to the second power control parameter is greater than the transmitting power corresponding to the first power control parameter; or

The reliability requirement of the service data corresponding to the second power control parameter is higher than that of the service data corresponding to the first power control parameter; or

The priority of the service data corresponding to the second power control parameter is higher than the priority of the service data corresponding to the first power control parameter.

6. The power control method according to claim 1 or 2,

scheduling the downlink control information DCI of the second service data into a first DCI format; or

Scheduling the DCI of the second service data to be scrambled by a first Radio Network Temporary Identifier (RNTI); or

Scheduling the DCI for the second traffic data to be detected in a first search space; or

The DCI scheduling the second traffic data is detected in the first CORESET.

7. The power control method according to claim 1 or 2, wherein the frequency domain location of the second time-frequency resource is the same as the frequency domain location of the third time-frequency resource.

8. The power control method of claim 2, wherein the frequency domain location of the second time-frequency resource is different from the frequency domain location of the third time-frequency resource, and wherein the phase of the second portion of the first traffic data transmitted by the terminal device on the second time-frequency resource is continuous with the phase of the second portion of the first traffic data transmitted on the fifth time-frequency resource.

9. A method of power control, comprising:

sending first information, wherein the first information is used for indicating a terminal device to send first service data according to a first power control parameter, and the first service data is loaded on a first time-frequency resource;

sending second information, where the second information is used to instruct the terminal device to send second service data according to a second power control parameter, where the second power control parameter is different from the first power control parameter, the second service data is carried on a second time-frequency resource, a time-domain position of the second time-frequency resource is the same as a time-domain position of a third time-frequency resource, and the third time-frequency resource is a part of the first time-frequency resource;

receiving the second service data from the terminal equipment on the second time-frequency resource, wherein the second service data is sent according to a third power control parameter;

and receiving a first part of the first service data from the terminal equipment on a fourth time-frequency resource, wherein the first part of the first service data is sent according to the third power control parameter, the fourth time-frequency resource comprises a time-frequency resource of which the time domain is later than that of the second time-frequency resource in the first time-frequency resource, and the third power control parameter is obtained by the terminal equipment through corresponding calculation according to the second power control parameter.

10. The power control method of claim 9, further comprising:

receiving a second part of the first service data from the terminal device on a fifth time-frequency resource, wherein the second part of the first service data is sent according to the third power control parameter, and the fifth time-frequency resource comprises a time-frequency resource of which the time domain is earlier than the second time-frequency resource in the first time-frequency resource.

11. The power control method according to claim 9 or 10,

12. The power control method according to claim 9 or 10,

13. The power control method according to claim 9 or 10,

14. The power control method according to claim 9 or 10,

The DCI scheduling the second traffic data is detected in the first CORESET.

15. The power control method according to claim 9 or 10, wherein the frequency domain location of the second time-frequency resource is the same as the frequency domain location of the third time-frequency resource.

16. A terminal device, comprising:

a receiving unit, configured to receive first information, where the first information is used to instruct a terminal device to send first service data according to a first power control parameter, and the first service data is carried on a first time-frequency resource;

the receiving unit is further configured to receive second information, where the second information is used to instruct the terminal device to send second service data according to a second power control parameter, where the second power control parameter is different from the first power control parameter, the second service data is carried on a second time-frequency resource, a time-domain position of the second time-frequency resource is the same as a time-domain position of a third time-frequency resource, and the third time-frequency resource is a part of the first time-frequency resource;

a sending unit, configured to send the second service data in the second time-frequency resource according to a third power control parameter;

the sending unit is further configured to send the first portion of the first service data in a fourth time-frequency resource according to the third power control parameter, where the fourth time-frequency resource includes a time-frequency resource in the first time-frequency resource, where a time domain of the fourth time-frequency resource is later than that of the second time-frequency resource, and the third power control parameter is obtained by performing corresponding calculation on the terminal device according to the second power control parameter.

17. The terminal device of claim 16, wherein the sending unit is further configured to:

18. The terminal device according to claim 16 or 17,

19. The terminal device according to claim 16 or 17,

20. The terminal device according to claim 16 or 17,

21. The terminal device according to claim 16 or 17,

The DCI scheduling the second traffic data is detected in the first CORESET.

22. The terminal device according to claim 16 or 17, wherein the frequency domain location of the second time-frequency resource is the same as the frequency domain location of the third time-frequency resource.

23. The terminal device of claim 17, wherein a frequency domain location of the second time-frequency resource is different from a frequency domain location of the third time-frequency resource, and wherein the transmitting unit transmits the second traffic data on the second time-frequency resource and transmits the second portion of the first traffic data on the fifth time-frequency resource in consecutive phases.

24. A network device, comprising:

a sending unit, configured to send first information, where the first information is used to instruct a terminal device to send first service data according to a first power control parameter, and the first service data is carried on a first time-frequency resource;

the sending unit is further configured to send second information, where the second information is used to instruct the terminal device to send second service data according to a second power control parameter, where the second power control parameter is different from the first power control parameter, the second service data is carried on a second time-frequency resource, a time-domain position of the second time-frequency resource is the same as a time-domain position of a third time-frequency resource, and the third time-frequency resource is a part of the first time-frequency resource;

a receiving unit, configured to receive the second service data from the terminal device on the second time-frequency resource, where the second service data is sent according to a third power control parameter;

the receiving unit is further configured to receive a first portion of the first service data from the terminal device on a fourth time-frequency resource, where the first portion of the first service data is sent according to the third power control parameter, the fourth time-frequency resource includes a time-frequency resource in the first time-frequency resource, where a time domain of the time-frequency resource is later than that of the second time-frequency resource, and the third power control parameter is obtained by performing corresponding calculation by the terminal device according to the second power control parameter.

25. The network device of claim 24, wherein the receiving unit is further configured to:

26. The network device of claim 24 or 25,

27. The network device of claim 24 or 25,

28. The network device of claim 24 or 25,

29. The network device of claim 24 or 25,

The DCI scheduling the second traffic data is detected in the first CORESET.

30. The network device of claim 24 or 25, wherein the frequency-domain location of the second time-frequency resource is the same as the frequency-domain location of the third time-frequency resource.

31. A computer-readable storage medium having stored thereon instructions which, when executed, implement a power control method as claimed in any one of claims 1 to 15.