CN113939003B

CN113939003B - Uplink power control method and device

Info

Publication number: CN113939003B
Application number: CN202111188783.7A
Authority: CN
Inventors: 谷建宏; 王柏钢
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2024-11-26
Anticipated expiration: 2041-10-12
Also published as: CN113939003A

Abstract

The present application discloses an uplink power control method and device, which belongs to the field of communication. The method includes: determining whether the first transmission power threshold value of the terminal device meets the performance requirements of the uplink transmission, the first transmission power threshold value is the maximum uplink transmission power threshold value configured by the network device for the terminal device; if not, sending a first update request for updating the first transmission power threshold value to the network device, so that the network device updates the first transmission power threshold value, wherein the updated first transmission power threshold value is greater than the first transmission power threshold value before the update; receiving the updated first transmission power threshold value returned by the network device; and re-determining the uplink transmission power based on the updated first transmission power threshold value. Since the maximum uplink transmission power threshold value of the terminal device can be dynamically increased by the network device, the uplink performance of the terminal device located at the edge of the cell can be improved accordingly.

Description

Uplink power control method and device

Technical Field

The application belongs to the technical field of communication, and particularly relates to an uplink power control method and device.

Background

With the popularization of communication equipment such as modern smart phones and tablet computers, mobile bandwidth flow increases exponentially, and requirements of users on network performance are also increasing. To ensure efficient connection, mitigate interference, and improve quality of service, the third generation partnership project (3rd Generation Partnership Project,3GPP) standard introduced Transmit Power Control (TPC) to achieve power control in the downlink and uplink directions in long term evolution (Long Term Evolution, LTE) systems, and emphasized accurate control of the User Equipment (UE) uplink power to mitigate the adverse impact of interference on network performance.

Currently, the 3GPP standard defines different P _EMAX,P_EMAX for base stations with different coverage sizes as the maximum transmit power threshold of UEs within the cell covered by the base station, e.g., P _EMAX for macro base stations is defined as 23dBm and P _EMAX for small base stations is defined as 18dBm.

In general, P _EMAX with a lower selection value may reduce interference, but may affect performance such as signal-to-interference ratio (Signal to Interference Ratio, SIR), because in case of too low P _EMAX, the received signal strength may be lower than the receiver threshold, so that the uplink performance of the UE located at the cell edge is reduced, and therefore, more reasonable control is required for P _EMAX corresponding to the base station to improve the uplink performance of the UE located at the cell edge.

Disclosure of Invention

The embodiment of the application aims to provide an uplink power control method and device for improving uplink performance of UE (user equipment) at the cell edge.

In a first aspect, an embodiment of the present application provides an uplink power control method, which is applied to a terminal device, where the method includes:

Determining whether a first transmission power threshold of the terminal equipment meets the performance requirement of uplink transmission, wherein the first transmission power threshold is a maximum uplink transmission power threshold configured by network equipment for the terminal equipment;

If the first transmission power threshold value is not met, a first updating request for updating the first transmission power threshold value is sent to the network equipment, so that the network equipment updates the first transmission power threshold value, wherein the updated first transmission power threshold value is larger than the first transmission power threshold value before updating;

Receiving the updated first transmission power threshold value returned by the network equipment;

And re-determining the uplink transmitting power based on the updated first transmitting power threshold value.

In a second aspect, an embodiment of the present application provides an uplink power control method, which is applied to a network device, where the method includes:

Receiving a first update request sent by a terminal device and used for updating a first transmission power threshold, wherein the first update request is sent by the terminal device when the first transmission power threshold of the terminal device does not meet the performance requirement of uplink transmission, and the first transmission power threshold is the maximum uplink transmission power threshold configured by the network device for the terminal device;

Updating the first transmission power threshold value in response to the first updating request, wherein the updated first transmission power threshold value is larger than the first transmission power threshold value before updating;

and feeding back the updated first transmission power threshold value to the terminal equipment so that the terminal equipment can redetermine the uplink transmission power based on the updated first transmission power threshold value.

In a third aspect, an embodiment of the present application provides an uplink power control device, which is applied to a terminal device, where the device includes:

A first determining module, configured to determine whether a first transmission power threshold of the terminal device meets a performance requirement of uplink transmission, where the first transmission power threshold is a maximum uplink transmission power threshold configured by a network device for the terminal device;

A first request sending module, configured to send a first update request for updating the first transmission power threshold to the network device when the first transmission power threshold of the terminal device does not meet a performance requirement of uplink transmission, so that the network device updates the first transmission power threshold, where the updated first transmission power threshold is greater than the first transmission power threshold before updating;

a first receiving module, configured to receive the updated first transmit power threshold value returned by the network device;

And the second determining module is used for redetermining the uplink transmitting power based on the updated first transmitting power threshold value.

In a fourth aspect, an embodiment of the present application provides an uplink power control apparatus, applied to a network device, where the apparatus includes:

A first request receiving module, configured to receive a first update request sent by a terminal device and used for updating a first transmission power threshold, where the first update request is sent by the terminal device when a first transmission power threshold of the terminal device does not meet a performance requirement of uplink transmission, and the first transmission power threshold is a maximum uplink transmission power threshold configured by the network device for the terminal device;

a first updating module, configured to update the first transmission power threshold in response to the first updating request, where the updated first transmission power threshold is greater than the first transmission power threshold before updating;

And the first sending module is used for feeding back the updated first sending power threshold value to the terminal equipment so that the terminal equipment can redetermine the uplink sending power based on the updated first sending power threshold value.

In a fifth aspect, an embodiment of the present application provides an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first or second aspect when executed by the processor.

In a sixth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first or second aspect.

In a seventh aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect or the second aspect.

In the embodiment of the application, when the maximum uplink transmitting power threshold value of the terminal equipment does not meet the transmitting performance requirement, the network equipment can dynamically improve the maximum uplink transmitting power threshold value of the terminal equipment, so that the uplink performance of the terminal equipment positioned at the cell edge is correspondingly improved.

Drawings

Fig. 1 is a flow chart of an uplink power control method according to an embodiment of the present application.

Fig. 2 is a schematic diagram of interaction between a base station and a UE according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a closed loop power control mechanism according to an embodiment of the present application.

Fig. 4 is a flowchart of an uplink power control method according to another embodiment of the present application.

Fig. 5 is a flowchart of an uplink power control method according to another embodiment of the present application.

Fig. 6 is a schematic structural diagram of an uplink power control device according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of an uplink power control device according to another embodiment of the present application.

Fig. 8 is a schematic hardware structure of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic hardware structure of a network device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application may be practiced otherwise than as specifically illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The uplink power control method, the uplink power control device and the electronic equipment provided by the embodiment of the application are described in detail through specific embodiments and application scenes thereof by combining the attached drawings.

An uplink power control method according to an embodiment of the present application will be described.

As shown in fig. 1, an uplink power control method provided in an embodiment of the present application may include:

step 101, the network device 11 configures an initial uplink transmission power value for the terminal device 12.

The network device 11 may be a base station and the terminal device may be a mobile phone of a user.

When a terminal device (also called user equipment, UE) initially accesses to a network side, the network device may configure an initial transmit power value of uplink transmission for the terminal device.

In the embodiment of the present application, uplink transmission may include, but is not limited to, an uplink shared channel (Physical UL SHARED CHANNEL, PUSCH) and an uplink control channel (Physical UL Control Channel, PUCCH), and the following description mainly uses PUSCH power control as an example.

The power control mechanism of the PUSCH comprises an open loop control and a closed loop control. Generally, an initial transmission power value of PUSCH is obtained through open loop control; and acquiring an adjustment value of the PUSCH transmission power through closed loop power control.

The mechanism of open loop power control is: in the process of registering the UE to the cell, the base station of the cell may send the maximum uplink transmit power threshold (i.e. the first transmit power threshold hereinafter) of the UE in the cell and the target receive power P ₀ of the base station to the UE through the system broadcast information, where the maximum uplink transmit power threshold configured by the base station for the UE in the cell may be represented by P _EMAX, and the UE may determine the power spectrum density range under the corresponding RB according to its power capability, the modulation mode of the current service requirement, and the power backoff under the configuration of the frequency domain Resource Block (RB). Before normal service communication, the UE determines a Path Loss (PL) under the current service according to the measured downlink reference signal received Power (REFERENCE SIGNAL RECEIVING Power, RSRP) (Pr) and the current downlink Power (Pt) notified by the base station:

PL＝P_t-P_r

As shown in fig. 2, the base station may send a cell reference signal (CELL REFERENCE SIGNAL, CRS) to the UE in order for the UE to determine the path loss PL under current traffic.

After knowing the target received power P ₀ and the path loss PL of the base station, the uplink transmit power of the UE can be determined by:

P_PUSCH(i)＝MIN{P_CMAX,10log₁₀(M_PUSCH(i))+P_{O_PUSCH}(j)+α(j)*PL+Δ_TF(i)+f(i)}[dBm]

wherein, P _PUSCH (i) represents an initial transmission power value of PUSCH, M _PUSCH (i) represents a PUSCH bandwidth in an ith subframe, and the number of available RBs can be contained; p _{O_PUSCH} (j) consists of two parts, namely cell-specific nominal power P _{O_NOMINAL_PUSCH} (j) and UE-specific nominal power P _{O_UE_PUSCH} (j), P _{O_PUSCH}(j)＝P_{O_NOMINAL_PUSCH}(j)+P_{O_UE_PUSCH} (j); alpha (j) represents a compensation factor for path loss; Δ _TF (i) represents the power offset determined by the modulation coding scheme and the data type; f (i) represents a closed loop power control adjustment value, and is divided into an accumulation method and an absolute value method.

Wherein P _CMAX represents the maximum transmit power of the UE under a certain carrier; the maximum uplink transmitting power threshold value of the UE in the small area configured by the base station corresponding to the carrier is P _EMAX; the power capability of the UE is generally characterized by the maximum transmit power value (i.e., a preset power value, described below) at the power level (PowerClass) of the UE, which may be denoted by P _PowerClass.

The relationship between P _CMAX、P_EMAX and P _PowerClass is as follows:

P_{CMAX_L}≤P_CMAX≤P_{CMAX_H}

P_{CMAX_L}＝MIN{P_EMAX-ΔT_C,P_PowerClass-MAX(MPR+A-MPR,P-MPR)-ΔT_C}

P_{CMAX_H}＝MIN{P_EMAX,P_PowerClass}

Where MPR represents a maximum power back-off (maximum output power reduction), a-MPR represents an additional maximum power back-off, P-MPR represents a maximum power back-off (Maximum Power Reduction set by Power Management Function) set by the power management function, Δtc represents an allowed operating band edge transmission power loose value, Δtc=1.5 dB if located within 4MHz of the band edge, otherwise Δtc=0 dB.

In addition to configuring the maximum uplink transmit power threshold (first transmit power threshold) P _EMAX for the UE in the cell, the base station configures a maximum uplink transmit power threshold (hereinafter, second transmit power threshold) P _EMAXI for the cell, where the second transmit power threshold is greater than the first transmit power threshold, that is, P _EMAXI＞P_EMAX.

Step 102, the terminal device 12 performs uplink transmission based on the initial uplink transmission power value.

Step 103, the network device 11 adjusts the uplink transmission power of the terminal device 11.

Still taking PUSCH transmission as an example, in this step, the base station may use a closed loop power control mechanism to perform uplink transmit power control.

The closed loop power control mechanism is: the base station determines RB and modulation and coding strategy (Modulation and Coding Scheme, MCS) according to the current service, and the base station measures the preset performance parameters (such as SIR, SINR or BLER) of the uplink transmission of the UE, and combines the preset performance parameters corresponding to the target MCS to carry out power adjustment. Under this mechanism, for the UE, it may be determined whether the closed loop power control mode is an accumulation mode or an absolute value mode according to parameters configured by a higher layer.

Under a closed loop power control mechanism, as shown in fig. 3, step 103 may include:

Step 301, determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements; if not, step 302 is performed, and if the preset requirement is exceeded, step 303 is performed.

The preset performance parameter may include at least one of a signal-to-interference ratio (Signal to Interference Ratio, SIR), a signal-to-interference-and-noise ratio (Signal to Interference plus Noise Ratio, SINR), a Block Error Rate (BLER), and other performance parameters determined according to service requirements (such as a low latency requirement parameter in an NR system).

Step 302, a first command is sent to a terminal device, where the first command is a transmission power control command sent by the network device and used for increasing uplink transmission power.

Step 303, a second command is sent to the terminal device, where the first command is a transmission power control command sent by the network device and used for reducing uplink transmission power.

For example, if the SINR of the uplink transmission of the UE is less than the preset threshold, indicating that the total uplink transmission power of the UE is smaller, a TPC command may be sent to the UE to cause the UE to increase the uplink transmission power; if the SINR of the uplink transmission of the UE is greater than the preset threshold, indicating that the total uplink transmission power of the UE is too large, a TPC command may be sent to the UE to cause the UE to reduce the uplink transmission power.

Step 304, when the maximum uplink transmission power threshold (P _EMAX) of the terminal device 12 does not meet the performance requirement of uplink transmission, the terminal device sends a first update request for updating P _EMAX to the network device.

Specifically, if the current transmit power of the terminal device has reached the maximum uplink transmit power threshold (P _EMAX), but the preset performance parameter of the uplink transmission of the terminal device still does not meet the preset requirement, a first update request for increasing P _EMAX may be sent.

The terminal device may determine whether the preset performance parameter of the uplink transmission meets the preset requirement based on whether the first command is received, if the first command is received, it indicates that the preset performance parameter of the uplink transmission does not meet the preset requirement, otherwise, it meets the preset requirement.

Optionally, before sending the first update request for updating P _EMAX to the network device, it may also be determined whether P _EMAX is smaller than the preset power value, and if so, the first update request for updating P _EMAX is sent to the network device. Wherein the preset power value is a power value representing the power capability of the terminal device, and as an example, the preset power value is determined according to the power class of the terminal device, and is typically the maximum transmission power value (P _PowerClass) at the power class (PowerClass) of the terminal device. That is, the request to update P _EMAX may be sent when the current uplink transmit power of the UE has reached P _EMAX and P _EMAX<P_PowerClass.

Step 305, the network device 11 updates the P _EMAX pair in response to the first update request.

Generally, P _EMAX is larger than P _EMAX before update after update based on the first update request.

The updated P _EMAX can be expressed as: p _EMAX'.

As an example, P _EMAX'＝MIN{P_PowerClass,P_EMAXI.

As another example, P _EMAX'∈(P_PowerClass,P_EMAXI.

Wherein P _EMAXI is the maximum uplink transmission power threshold value of the non-interfering neighbor cell configured by the network device for the cell where the terminal device is located.

Step 306, the network device 11 feeds back the updated P _EMAX to the terminal device 12.

Step 307, the terminal device 12 performs uplink transmission based on the updated P _EMAX.

Under the closed loop power control mechanism, the formula of the UE for calculating the uplink transmission power value can refer to the related protocol.

According to the uplink power control method provided by the embodiment of the application, when the maximum uplink transmission power threshold value of the terminal equipment does not meet the transmission performance requirement, the network equipment can dynamically improve the maximum uplink transmission power threshold value of the terminal equipment, so that the uplink performance of the terminal equipment positioned at the cell edge is correspondingly improved.

Optionally, when the maximum uplink transmission power threshold (P _EMAX) of the terminal device 12 meets the performance requirement of uplink transmission, a second update request for updating P _EMAX may be sent to the network device 12, so that the network device 11 updates P _EMAX, where the updated P _EMAX is smaller than the pre-update P _EMAX.

Specifically, if the current transmit power of the terminal device does not reach the maximum uplink transmit power threshold (P _EMAX), but the preset performance parameter of the uplink transmission of the terminal device has met the preset requirement, a second update request for reducing P _EMAX may be sent.

The terminal device may determine whether the preset performance parameter of the uplink transmission meets the preset requirement based on whether the second command is received, and if the second command is received, it indicates that the preset performance parameter of the uplink transmission meets the preset requirement, otherwise, it does not meet the preset requirement.

The uplink power control method provided by the embodiment of the application not only can dynamically increase the maximum uplink transmission power threshold value of the terminal equipment by the network equipment when the maximum uplink transmission power threshold value of the terminal equipment does not meet the transmission performance requirement, but also can dynamically decrease the maximum uplink transmission power threshold value of the terminal equipment by the network equipment when the maximum uplink transmission power threshold value of the terminal equipment meets the transmission performance requirement so as to avoid energy waste.

As shown in fig. 4, the embodiment of the present application further provides an uplink transmission power control method, which may be applied to the terminal device 12 shown in fig. 1, and the method may include:

step 400, start.

Step 401, determining an initial uplink transmission power value based on the configuration of the network device, and performing uplink transmission based on the initial uplink transmission power value.

Step 402, a transmit power control command is received from a network device.

Step 403, determining whether a first transmission power threshold of the terminal device meets a performance requirement of uplink transmission; if not, go to step 404; if so, step 406 is performed.

The first transmission power threshold is a maximum uplink transmission power threshold (P _EMAX) configured by a network device for the terminal device.

As an example, step 403 may specifically include: determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements or not under the condition that the current uplink transmission power of the terminal equipment reaches the first transmission power threshold value; if the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission, otherwise, the first transmission power threshold value of the terminal equipment is determined to meet the performance requirement of uplink transmission. That is, if the current transmission power of the terminal device has reached the maximum uplink transmission power threshold (P _EMAX), but the preset performance parameter of the uplink transmission of the terminal device still does not meet the preset requirement, the network device may send a first update request for increasing P _EMAX.

Wherein, determining whether the preset performance parameter of the uplink transmission of the terminal device meets the preset requirement may include: and determining whether a first command is received, if so, determining that the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission, otherwise, determining that the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission. The first command is a transmission power control command which is sent by the network device and used for increasing uplink transmission power under the condition that the preset performance parameter of uplink transmission of the terminal device is determined to not meet the preset requirement; the preset performance parameters may include, but are not limited to, at least one of SIR, SINR, and BLER.

Step 404, a first update request for updating the first transmission power threshold is sent to a network device, so that the network device updates the first transmission power threshold.

The updated first transmission power threshold value is greater than the first transmission power threshold value before updating.

Optionally, before step 404, it may also be determined whether the first transmit power threshold is less than a preset power value, and if so, step 404 is performed. The preset power value is a power value representing the power capability of the terminal equipment. That is, the request to update P _EMAX may be sent when the current uplink transmit power of the UE has reached P _EMAX and P _EMAX<P_PowerClass.

As an example, the preset power value is determined according to the power level of the terminal device, and may specifically be a maximum transmission power value (P _PowerClass) at the power level (PowerClass) of the terminal device.

Further, as an example, the updated first transmission power threshold value is the relatively smaller one of the preset power value and the second transmission power threshold value (P _EMAXI), that is, P _EMAX'＝MIN{P_PowerClass,P_EMAXI; as another example, the updated first transmit power threshold is greater than the preset power value (P _PowerClass) and less than or equal to a second transmit power threshold (P _EMAXI), i.e., P _EMAX'∈(P_PowerClass,P_EMAXI. Wherein P _EMAX' represents the updated first transmission power threshold, and the second transmission power threshold is a maximum uplink transmission power threshold (P _EMAXI) of a non-interfering neighbor cell configured by the network device for the cell in which the terminal device is located.

Step 405, receiving the updated first transmission power threshold value returned by the network device.

Step 406, redetermining uplink transmission power based on the updated first transmission power threshold value.

Taking PUSCH transmission as an example, the terminal device may redetermine the uplink transmit power based on the closed loop power control mechanism and the updated first transmit power threshold value, and the specific determining process is referred to above, which is not repeated here.

Optionally, the method shown in fig. 4 may further include: if the first transmission power threshold of the terminal equipment meets the performance requirement of uplink transmission, a second update request for updating the first transmission power threshold is sent to the network equipment, so that the network equipment updates the first transmission power threshold, wherein the updated first transmission power threshold is smaller than the first transmission power threshold before updating.

Specifically, if the current transmission power of the terminal device does not reach the maximum uplink transmission power threshold, but the preset performance parameter of the uplink transmission of the terminal device has met the preset requirement, a second update request for reducing the first transmission power threshold may be sent.

As shown in fig. 5, the embodiment of the present application further provides an uplink transmit power control method, where the method may be applied to the network device 11 shown in fig. 1, and the method may include:

Step 500, start.

Step 501, an initial uplink transmission power value is configured for a terminal device.

Step 502, receiving uplink transmission of the terminal device.

Step 503, transmitting a transmission power control command to the terminal device.

Step 504, receiving a first update request sent by a terminal device and used for updating a first transmission power threshold, where the first update request is sent by the terminal device when the first transmission power threshold of the terminal device does not meet a performance requirement of uplink transmission, and the first transmission power threshold is a maximum uplink transmission power threshold configured by the network device for the terminal device.

Optionally, before step 504, the method shown in fig. 5 may further include: determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements; and if the uplink transmission power is not met, sending a first command to the terminal equipment, wherein the first command is a transmission power control command which is sent by the network equipment and used for increasing the uplink transmission power.

Wherein the preset performance parameters include, but are not limited to, at least one of SIR, SINR, and BLER.

Optionally, the first update request is sent by the terminal device when the first transmission power threshold is smaller than a preset power value, where the preset power value is a power value that characterizes a power capability of the terminal device.

Optionally, the updated first transmission power threshold is a relatively smaller one of the preset power value and a second transmission power threshold, where the second transmission power threshold is a maximum uplink transmission power threshold configured by the network device for a cell where the terminal device is located, where the maximum uplink transmission power threshold does not interfere with a neighboring cell.

Optionally, the preset power value is determined according to a power level of the terminal device.

Step 505, updating the first transmission power threshold in response to the first update request, where the updated first transmission power threshold is greater than the first transmission power threshold before updating.

Step 506, feeding back the updated first transmission power threshold value to the terminal device, so that the terminal device redetermines uplink transmission power based on the updated first transmission power threshold value.

Optionally, the method shown in fig. 5 may further include:

And receiving a second update request sent by the terminal equipment and used for updating the first transmission power threshold value, wherein the second update request is sent by the terminal equipment when the first transmission power threshold value of the terminal equipment meets the performance requirement of uplink transmission.

And responding to the second updating request to update the first transmitting power threshold value, wherein the updated first transmitting power threshold value is smaller than the first transmitting power threshold value before updating.

Optionally, before receiving the second update request sent by the terminal device for updating the first transmit power threshold, the method shown in fig. 5 may further include: determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements; and if yes, sending a second command to the terminal equipment, wherein the second command is a transmission power control command sent by the network equipment and used for reducing uplink transmission power.

The above is a description of the uplink power control method provided by the embodiment of the present application.

It should be noted that, in the uplink power control method provided in the embodiment of the present application, the execution body may be an uplink power control device, or a control module in the uplink power control device for executing the uplink power control method. In the embodiment of the present application, an uplink power control device executes a loading uplink power control method as an example, and the uplink power control method provided by the embodiment of the present application is described.

The following describes an uplink power control device provided by the embodiment of the present application.

As shown in fig. 6, an embodiment of the present application provides an uplink power control apparatus 600, which may be applied to the terminal device 12 shown in fig. 1, and may include: a first determination module 603, a first update request transmission module 604, a first receiving module 605, and a second determination module 605.

A first determining module 603 is configured to determine whether a first transmission power threshold of the terminal device meets a performance requirement of uplink transmission, where the first transmission power threshold is a maximum uplink transmission power threshold configured by a network device for the terminal device.

As an example, the first determining module 603 may be specifically configured to: determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements or not under the condition that the current uplink transmission power of the terminal equipment reaches the first transmission power threshold value; if the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission, otherwise, the first transmission power threshold value of the terminal equipment is determined to meet the performance requirement of uplink transmission.

More specifically, the first determining module 603 may be configured to: and determining whether a first command is received, if so, determining that the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission, otherwise, determining that the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission. The first command is a transmission power control command which is sent by the network device and used for increasing uplink transmission power under the condition that the preset performance parameter of uplink transmission of the terminal device is determined to not meet the preset requirement; the preset performance parameters may include, but are not limited to, at least one of SIR, SINR, and BLER.

Optionally, the first determining module 603 may further be configured to: before a first updating request for updating the first transmitting power threshold value is sent to the network equipment, determining whether the first transmitting power threshold value is smaller than a preset power value, and if so, sending a first updating request for updating the first transmitting power threshold value to the network equipment. The preset power value is a power value representing the power capability of the terminal equipment. That is, the update request to increase P _EMAX may be sent when the current uplink transmit power of the UE has reached P _EMAX and P _EMAX<P_PowerClass.

A first request sending module 604, configured to send a first update request for updating the first transmission power threshold to the network device when the first transmission power threshold of the terminal device does not meet the performance requirement of uplink transmission, so that the network device updates the first transmission power threshold, where the updated first transmission power threshold is greater than the first transmission power threshold before updating.

As an example, the updated first transmission power threshold value is the relatively smaller one of the preset power value and the second transmission power threshold value (P _EMAXI), that is, P _EMAX'＝MIN{P_PowerClass,P_EMAXI; as another example, the updated first transmit power threshold is greater than the preset power value (P _PowerClass) and less than or equal to a second transmit power threshold (P _EMAXI), i.e., P _EMAX'∈(P_PowerClass,P_EMAXI. Wherein P _EMAX' represents the updated first transmission power threshold, and the second transmission power threshold is a maximum uplink transmission power threshold (P _EMAXI) of a non-interfering neighbor cell configured by the network device for the cell in which the terminal device is located.

A first receiving module 605 is configured to receive the updated first transmit power threshold value returned by the network device.

A second determining module 606, configured to redetermine uplink transmission power based on the updated first transmission power threshold value.

Optionally, the apparatus 600 may further include: and the initial uplink transmission power determining module is used for determining an initial uplink transmission power value based on the configuration of the network equipment when the terminal equipment is accessed to the network side, and carrying out uplink transmission based on the initial uplink transmission power value.

Optionally, the apparatus 600 may further include: and the instruction receiving module is used for receiving the transmission power control command from the network equipment.

According to the uplink power control device provided by the embodiment of the application, when the maximum uplink transmission power threshold value of the terminal equipment does not meet the transmission performance requirement, the network equipment can dynamically improve the maximum uplink transmission power threshold value of the terminal equipment, so that the uplink performance of the terminal equipment positioned at the cell edge is correspondingly improved.

Optionally, the apparatus shown in fig. 6 may further include: and the second request sending module is used for sending a second update request for updating the first transmission power threshold value to the network equipment under the condition that the first transmission power threshold value of the terminal equipment meets the performance requirement of uplink transmission, so that the network equipment updates the first transmission power threshold value, wherein the updated first transmission power threshold value is smaller than the first transmission power threshold value before updating.

As shown in fig. 7, an embodiment of the present application provides an uplink power control apparatus 700, which may be applied to the network device 11 shown in fig. 1, and may include: a first update request receiving module 704, a first update module 705, and a first transmitting module 706.

The first update request receiving module 704 is configured to receive a first update request sent by a terminal device and used for updating a first transmit power threshold, where the first update request is sent by the terminal device when the first transmit power threshold of the terminal device does not meet a performance requirement of uplink transmission, and the first transmit power threshold is a maximum uplink transmit power threshold configured by the network device for the terminal device.

A first updating module 705, configured to update the first transmission power threshold, where the updated first transmission power threshold is greater than the first transmission power threshold before updating.

As an example, the updated first transmission power threshold is a relatively smaller one of the preset power value and a second transmission power threshold, where the second transmission power threshold is a maximum uplink transmission power threshold of a non-interfering neighbor cell configured by the network device for a cell where the terminal device is located; the preset power value is determined according to the power level of the terminal equipment.

And a first sending module 706, configured to feed back the updated first transmission power threshold to the terminal device, so that the terminal device redetermines uplink transmission power based on the updated first transmission power threshold.

Optionally, the apparatus 700 may further include: and the first performance determining module is used for determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements or not before receiving a first updating request which is sent by the terminal equipment and used for updating the first transmission power threshold value.

Further, the apparatus 700 may further include: a first command sending module, configured to send a first command to the terminal device when a preset performance parameter of uplink transmission of the terminal device does not meet a preset requirement, where the first command is a transmission power control command sent by the network device to increase uplink transmission power when it is determined that the preset performance parameter of uplink transmission of the terminal device does not meet the preset requirement; the preset performance parameter includes at least one of SIR, SINR, and BLER.

Optionally, the apparatus shown in fig. 7 may further include: the system comprises a second request receiving module, a second updating module and a second sending module.

And the second request receiving module is used for receiving a second update request which is sent by the terminal equipment and used for updating the first transmission power threshold value, wherein the second update request is sent by the terminal equipment when the first transmission power threshold value of the terminal equipment meets the performance requirement of uplink transmission.

And the second updating module is used for responding to the second updating request to update the first transmitting power threshold value, wherein the updated first transmitting power threshold value is smaller than the first transmitting power threshold value before updating.

And the second sending module is used for feeding back the updated first sending power threshold value to the terminal equipment so that the terminal equipment can redetermine the uplink sending power based on the updated first sending power threshold value.

Optionally, the apparatus shown in fig. 7 may further include: a second performance determination module and a second command transmission module.

A second performance determining module, configured to determine, before the receiving a second update request sent by the terminal device and used for updating the first transmission power threshold, whether a preset performance parameter of uplink transmission of the terminal device meets a preset requirement;

And the second command sending module is used for sending a second command to the terminal equipment under the condition that the preset performance parameter of the uplink transmission of the terminal equipment meets the preset requirement, wherein the second command is a transmission power control command sent by the network equipment and used for reducing the uplink transmission power.

The uplink power control device in the embodiment of the application can be a device, and can also be a component, an integrated circuit or a chip in the terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), etc., and the non-mobile electronic device may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, etc., and the embodiments of the present application are not limited in particular.

The uplink power control device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.

The uplink power control device provided by the embodiment of the present application can implement each process implemented by the uplink power control device in the embodiment shown in fig. 4 or fig. 5, and in order to avoid repetition, a description is omitted here.

Optionally, the embodiment of the present application further provides an electronic device, including a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction realizes each process of the embodiment of the uplink power control method when executed by the processor, and the process can achieve the same technical effect, so that repetition is avoided, and no redundant description is provided herein.

It should be noted that, the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.

Fig. 8 is a schematic hardware structure of a terminal device for implementing an embodiment of the present application.

The terminal device 800 includes, but is not limited to: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, and processor 810.

Those skilled in the art will appreciate that the terminal device 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal device structure shown in fig. 8 does not constitute a limitation of the terminal device, and the terminal device may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

The processor 810 is configured to determine whether a first transmission power threshold of the terminal device meets a performance requirement of uplink transmission, where the first transmission power threshold is a maximum uplink transmission power threshold configured by a network device for the terminal device; if the first transmission power threshold value is not met, a first updating request for updating the first transmission power threshold value is sent to the network equipment, so that the network equipment updates the first transmission power threshold value, wherein the updated first transmission power threshold value is larger than the first transmission power threshold value before updating; receiving the updated first transmission power threshold value returned by the network equipment; and re-determining the uplink transmitting power based on the updated first transmitting power threshold value.

According to the terminal equipment provided by the embodiment of the application, when the maximum uplink transmission power threshold value of the terminal equipment does not meet the transmission performance requirement, the network equipment can dynamically improve the maximum uplink transmission power threshold value of the terminal equipment, so that the uplink performance of the terminal equipment positioned at the cell edge is correspondingly improved.

The embodiment of the application also provides a network device which comprises a processor and a communication interface, wherein the processor is used for realizing the processes of the uplink power control method embodiment, and the communication interface is used for accessing the terminal device. The network device embodiment corresponds to the network device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network device embodiment and can achieve the same technical effect.

The embodiment of the application also provides the network equipment. As shown in fig. 9, the network device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information via the antenna 91, and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted, and transmits the processed information to the radio frequency device 92, and the radio frequency device 92 processes the received information and transmits the processed information through the antenna 91.

The above-mentioned band processing means may be located in the baseband means 93, and the method performed by the network device in the above embodiment may be implemented in the baseband means 93, the baseband means 93 comprising a processor 94 and a memory 95.

The baseband device 93 may, for example, comprise at least one baseband board on which a plurality of chips are disposed, as shown in fig. 9, where one chip, for example, a processor 94, is connected to the memory 95 to invoke a program in the memory 95 to perform the network device operations shown in the above method embodiment.

The baseband device 93 may also include a network interface 96 for interacting with the radio frequency device 92, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network device of the embodiment of the present invention further includes: instructions or programs stored in the memory 95 and executable on the processor 94, the processor 94 invokes the instructions or programs in the memory 95 to perform the methods performed by the modules shown in fig. 6 and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the uplink power control method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions, the processes of the uplink power control method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. An uplink power control method, which is applied to a terminal device, includes:

and re-determining the uplink transmitting power based on the closed loop power control mechanism and the updated first transmitting power threshold value.

2. The method of claim 1, wherein determining whether the first transmit power threshold of the terminal device meets performance requirements for uplink transmission comprises:

determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements or not under the condition that the current uplink transmission power of the terminal equipment reaches the first transmission power threshold value;

If not, determining that the first transmission power threshold of the terminal equipment does not meet the performance requirement of uplink transmission.

3. The method according to claim 2, wherein determining whether the preset performance parameter of the uplink transmission of the terminal device meets a preset requirement comprises:

determining whether a first command is received, wherein the first command is a transmission power control command which is sent by the network equipment and used for increasing uplink transmission power under the condition that the preset performance parameter of uplink transmission of the terminal equipment is determined to not meet the preset requirement;

if yes, determining that the first transmission power threshold value of the terminal equipment does not meet the performance requirement of uplink transmission.

4. A method according to any of claims 1-3, characterized in that before said sending a first update request to the network device for updating the first transmit power threshold value, the method further comprises:

Determining whether the first transmission power threshold value is smaller than a preset power value, wherein the preset power value is a power value representing the power capability of the terminal equipment;

And if the transmission power threshold value is smaller than the first transmission power threshold value, a first updating request for updating the first transmission power threshold value is sent to the network equipment.

5. The method according to claim 1, wherein the method further comprises:

If the first transmission power threshold of the terminal equipment meets the performance requirement of uplink transmission, a second update request for updating the first transmission power threshold is sent to the network equipment, so that the network equipment updates the first transmission power threshold, wherein the updated first transmission power threshold is smaller than the first transmission power threshold before updating.

6. An uplink power control method, applied to a network device, comprising:

And feeding back the updated first transmission power threshold value to the terminal equipment so that the terminal equipment can redetermine the uplink transmission power based on a closed loop power control mechanism and the updated first transmission power threshold value.

7. The method of claim 6, wherein prior to the first update request sent by the receiving terminal device for updating the first transmit power threshold value, the method further comprises:

determining whether preset performance parameters of uplink transmission of the terminal equipment meet preset requirements;

and if the uplink transmission power is not met, sending a first command to the terminal equipment, wherein the first command is a transmission power control command which is sent by the network equipment and used for increasing the uplink transmission power.

8. The method of claim 6, wherein the step of providing the first layer comprises,

The first update request is sent by the terminal device when the first transmission power threshold value is smaller than a preset power value, wherein the preset power value is a power value representing the power capability of the terminal device.

9. The method of claim 6, wherein the method further comprises:

Receiving a second update request sent by the terminal equipment and used for updating the first transmission power threshold value, wherein the second update request is sent by the terminal equipment when the first transmission power threshold value of the terminal equipment meets the performance requirement of uplink transmission;

Updating the first transmission power threshold value in response to the second updating request, wherein the updated first transmission power threshold value is smaller than the first transmission power threshold value before updating;

10. The method of claim 9, wherein prior to receiving the second update request sent by the terminal device for updating the first transmit power threshold value, the method further comprises:

And if yes, sending a second command to the terminal equipment, wherein the second command is a transmission power control command sent by the network equipment and used for reducing uplink transmission power.

11. An uplink power control apparatus, applied to a terminal device, comprising:

And the second determining module is used for redetermining the uplink transmitting power based on the closed loop power control mechanism and the updated first transmitting power threshold value.

12. An uplink power control apparatus, applied to a network device, comprising:

and the first sending module is used for feeding back the updated first sending power threshold value to the terminal equipment so that the terminal equipment can re-determine the uplink sending power based on a closed-loop power control mechanism and the updated first sending power threshold value.