WO2019007256A1 - Power adjustment method and system - Google Patents

Abstract

Provided are a power adjustment method and system for solving the technical problem that it is very difficult for a base station to separate different terminals on the same PUCCH domain. The method comprises: a base station acquiring terminal information about multiplexed terminals on a physical uplink control channel (PUCCH) domain, the terminal information being used for indicating the number of the multiplexed terminals on the PUCCH domain and/or a movement speed of each terminal; and the base station adjusting a power control parameter of the PUCCH domain based on the terminal information, the power control parameter being used for determining an uplink power of each terminal multiplexed on the PUCCH domain.

Description

Power adjustment method and system

The present application claims priority to the CN Patent Application No. 200910552419., entitled "A Power Adjustment Method and System", filed on July 07, 2017, the entire contents of which is incorporated herein by reference. .

Technical field

The present invention relates to the field of communications, and in particular, to a power adjustment method and system.

Background technique

The power control in the Long Term Evolution (LTE) system is divided into downlink power control and uplink power control according to the link direction. The purpose of the uplink power control is to enable users in the cell to ensure the uplink data quality. On the basis of as much as possible to reduce interference to other users, extend the terminal battery life.

The uplink power control may be divided into multiple types according to different objects to which it is targeted, such as a channel or a sounding reference signal, such as a physical uplink control channel (PUCCH) power control, and a physical uplink shared channel ( Physical Uplink Shared Channel, PUSCH) Power Control, Sounding Reference Signal (SRS) power control, Physical Random Access Channel (PRACH) power control, etc. The PUCCH is that the user sends Uplink Control Information (UCI) to the base station through the terminal device, such as a scheduling request, a channel quality indicator (CQI), and a hybrid automatic repeat request (HARQ). It is important to confirm the information, etc., so that the uplink control information in the PUCCH can be received by the base station.

At present, PUCCH power control is mainly a combination of open loop power control and closed loop power control. The open loop power control refers to configuring an initial open loop power control parameter for all terminals in the coverage area through the base station, and the terminal calculates an initial PUCCH transmit power according to different path loss of the base station, and the initial open loop power control parameter is usually It is fixed. The closed loop power control refers to a process in which a base station can generate a Transmission Power Common (TPC) command according to the relevant criteria in the LTE physical layer protocol 3GPP TS 36.211, and send the TPC command to the terminal device connected thereto. The criteria for generating TPC commands are usually designed and adjusted by the vendor or base station. For example, the base station according to the measured signal interference-to-noise ratio (SINR) between the strength of the received useful signal and the strength of the received interference signal/the intensity indication of the received signal measured by the base station (Received Signal Strength) The Indicatior (RSSI) is compared with the target SINR/RSSI on the base station side to generate a TPC command, which is usually also fixed.

The initial open loop power control parameters corresponding to the open loop power control in the PUCCH power control and the target SINR/RSSI corresponding to the closed loop power control are fixed, so that the initial PUCCH transmit power of some terminals in the same PUCCH domain is currently entered. The PUCCH transmission power of the closed-loop power control terminal has a large difference, or the PUCCH reception power between the terminals differs greatly due to the difference in the motion speed between different terminals in the PUCCH closed-loop power control. Due to the greater power difference between the terminals, the energy aliasing phenomenon is more serious, making it more difficult for the base station receiving end to separate different terminals on the same PUCCH domain.

In summary, in the existing LTE system, there is a technical problem that the base station has difficulty in separating different terminals on the same PUCCH domain.

Summary of the invention

The embodiments of the present invention provide a power adjustment method and system, which are used to solve the technical problem that the base station in the prior art has difficulty in separating different terminals on the same PUCCH domain.

In a first aspect, an embodiment of the present invention provides a power adjustment method, where the method includes:

The base station acquires terminal information of the terminal multiplexed on the PUCCH domain of the physical uplink control channel, where the terminal information is used to indicate the number of terminals multiplexed on the PUCCH domain and/or the motion speed of each terminal;

The base station adjusts a power control parameter of the PUCCH domain based on the terminal information, where the power control parameter is used to determine an uplink power of each terminal multiplexed in the PUCCH domain.

Optionally, the base station adjusts, according to the terminal information, a power control parameter of the PUCCH domain, where:

Determining, by the base station, a terminal number state according to the number of terminals multiplexed on the PUCCH domain, and determining a terminal motion state according to the motion speed of each terminal; wherein the terminal number state is used to indicate the PUCCH domain a level of the number of multiplexed terminals, the terminal motion state being used to indicate a level of motion speed of the terminal multiplexed on the PUCCH domain;

The base station adjusts a power control parameter of the PUCCH domain according to the terminal number state and the terminal motion state, where the power control parameter includes an open loop power control parameter and a closed loop power control parameter.

Optionally, the base station adjusts the power control parameters of the PUCCH domain according to the terminal number state and the terminal motion state, including:

Determining, by the base station, whether the state of the terminal number is a preset terminal number state, and whether the terminal motion state is a preset motion state; wherein the preset terminal number state is used to indicate multiplexing on the PUCCH domain The preset number of the terminal is used to indicate that the maximum motion speed of the terminal multiplexed on the PUCCH domain is greater than or equal to a preset speed threshold;

And if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, adjusting a power control parameter of the PUCCH domain.

Optionally, if the number of the terminal is the preset number of terminals, or the terminal motion state is the preset motion state, adjusting the power control parameters of the PUCCH domain includes:

If the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and The maximum uplink power and the minimum uplink power of the uplink power of all terminals in the closed loop power control state;

The base station adjusts the open loop power control parameter to the average uplink power, and adjusts a parameter range of the closed loop power control parameter to a first parameter range, where the first parameter range is determined by the maximum uplink The power is determined with the minimum uplink power.

Optionally, if the number of the terminal is the preset number of terminals, or the terminal motion state is the preset motion state, adjusting the power control parameters of the PUCCH domain includes:

If the terminal number state is the preset terminal number state, and the terminal motion state is not the preset motion state, or if the terminal number state is not the preset terminal number state, and the terminal motion state is In the preset motion state, the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and a maximum uplink power and a minimum uplink power in uplink power of all terminals in a closed loop power control state;

The base station adjusts the open loop power control parameter to the average uplink power, and adjusts a parameter range of the closed loop power control parameter to a second parameter range, where the second parameter range is determined by the maximum uplink The power is determined with the minimum uplink power, and a maximum value of the second parameter range is greater than a maximum value of the first parameter range, and/or a minimum value of the second parameter range is smaller than the first parameter range Minimum value.

Optionally, after the base station adjusts the power control parameter of the PUCCH domain based on the terminal information, the method further includes:

Sending, by the base station, the power control parameter to each terminal;

The base station separates any two terminals that adjust the uplink power based on the power control parameter; wherein, the power difference between the uplink powers of any two terminals is within a preset difference range.

In a second aspect, an embodiment of the present invention provides a power adjustment system, where the system includes a base station and a terminal:

The base station is configured to acquire terminal information of a terminal multiplexed on a PUCCH domain of a physical uplink control channel, where the terminal information is used to indicate a quantity of terminals multiplexed on the PUCCH domain and/or a motion speed of each terminal; and,

And adjusting, according to the terminal information, a power control parameter of the PUCCH domain, where the power control parameter is used to determine an uplink power of each terminal multiplexed on the PUCCH domain.

Optionally, the base station is configured to: determine a terminal number state according to the number of terminals multiplexed on the PUCCH domain, and determine a terminal motion state according to the motion speed of each terminal; wherein, the terminal number state is used by And indicating a level of the number of terminals multiplexed on the PUCCH domain, where the terminal motion state is used to indicate a level of motion speed of the terminal multiplexed on the PUCCH domain;

And adjusting power control parameters of the PUCCH domain according to the terminal number state and the terminal motion state, where the power control parameters include an open loop power control parameter and a closed loop power control parameter.

Optionally, the base station is configured to:

Determining whether the state of the terminal number is a preset number of terminals, and whether the terminal motion state is a preset motion state, and obtaining a determination result; wherein the preset terminal number state is used to indicate multiplexing on the PUCCH domain The preset number of terminals is greater than or equal to a preset number threshold, and the preset terminal motion state is used to indicate that a maximum motion speed of the terminal multiplexed on the PUCCH domain is greater than or equal to a preset speed threshold;

And if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, adjusting a power control parameter of the PUCCH domain.

Optionally, the base station is configured to:

If the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and The maximum uplink power and the minimum uplink power of the uplink power of all terminals in the closed loop power control state;

Adjusting the open loop power control parameter to the average uplink power, and adjusting a parameter range of the closed loop power control parameter to a first parameter range; wherein the first parameter range is determined by the maximum uplink power The minimum uplink power is determined.

Optionally, the base station is configured to:

If the terminal number state is the preset terminal number state, and the terminal motion state is not the preset motion state, or if the terminal number state is not the preset terminal number state, and the The terminal motion state is the preset motion state, determining an average uplink power of all terminals multiplexed in the PUCCH domain, and a maximum uplink power and a minimum uplink power among uplink powers of all terminals in a closed loop power control state;

Adjusting the open loop power control parameter to the average uplink power, and adjusting a parameter range of the closed loop power control parameter to a second parameter range; wherein the second parameter range is determined by the maximum uplink power The minimum uplink power is determined, and a maximum value of the second parameter range is greater than a maximum value of the first parameter range, and/or a minimum value of the second parameter range is smaller than a minimum value of the first parameter range.

Optionally, the base station is configured to:

After adjusting the power control parameter of the PUCCH domain based on the terminal information, sending the power control parameter to each terminal;

Separating any two terminals that adjust the uplink power based on the power control parameter; wherein, the power difference between the uplink powers of any two terminals is within a preset difference range.

In a third aspect, an embodiment of the present invention provides a computer apparatus, the apparatus comprising a processor, wherein the processor is configured to implement the steps of the method in the first aspect when the computer program stored in the memory is executed.

In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium storing a computer program, where the computer program is executed by a processor to implement the steps of the method in the first aspect.

One or more technical solutions in the above technical solutions have the following technical effects or advantages:

An embodiment of the present invention provides a power adjustment method, in which a base station obtains terminal information of a terminal multiplexed on a PUCCH domain of a physical uplink control channel, where the terminal information is used to indicate the number of terminals multiplexed on the PUCCH domain and/or The motion speed of each terminal, and further, the base station adjusts, according to the terminal information, a power control parameter on the PUCCH domain for determining the uplink power of each terminal multiplexed on the PUCCH domain, so that any two terminals that adjust the uplink power The power difference between the uplink powers is within a preset difference, so that the base station can distinguish any two terminals whose power difference is within the preset difference range, and solve the problem of the base station existing in the prior art. The technical problem that the separation of different terminals in a PUCCH domain is difficult is to improve the accuracy of the separation terminal of the base station and improve the reliability of the transmission of the uplink control channel of the terminal.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly described below. It is obvious that the following drawings are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic flowchart of a power adjustment method according to an embodiment of the present invention;

2 is a schematic diagram of a PUCCH domain according to an embodiment of the present invention;

3 is a schematic diagram of a power adjustment system according to an embodiment of the present invention;

4 is a schematic diagram of a computer device in an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the drawings in the embodiments of the present invention.

Hereinafter, some of the terms in the embodiments of the present invention will be explained first, so as to be understood by those skilled in the art.

A terminal, which is a device that provides voice and/or data connectivity to a user, for example, may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The terminal can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN. The terminal may include a wireless terminal device, a mobile terminal device, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an Access Point. Point, AP), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, etc. For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, a portable, pocket, handheld, computer built-in or in-vehicle mobile device. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), Smart Devices such as wearable devices.

A base station refers to a device in an access network that communicates with a wireless terminal device over one or more cells on an air interface. The base station may be a Long Term Evolution (LTE) system, or the base station may also be an evolved base station (eNB or e-NodeB) in an evolved LTE system (LTE-A). This embodiment of the present invention does not specifically limit this.

In addition, the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist at the same time. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Embodiment 1

Referring to FIG. 1 , an embodiment of the present invention provides a power adjustment method, and the process of the power adjustment method may be described as follows:

S100: The base station acquires terminal information of a terminal multiplexed on a PUCCH domain of a physical uplink control channel, where the terminal information is used to indicate a quantity of terminals multiplexed on the PUCCH domain and/or a motion speed of each terminal.

S200: The base station adjusts, according to the terminal information, a power control parameter of the PUCCH domain, where the power control parameter is used to determine an uplink power of each terminal multiplexed in the PUCCH domain.

In practical applications, according to the protocol, the PUCCH can transmit terminal information on all uplink subframes except the special subframe. In general, PUCCH channel resources can be located at both ends of the system bandwidth. For example, FIG. 2 is a schematic structural diagram of a PUCCH domain. As shown in FIG. 2, a PUCCH domain may be composed of a pair of resource blocks (RBs) in two slots in a subframe, and such a structure may be minimized. The resources required for signal transmission are controlled, and by frequency diversity, multiplexing of UEs can be implemented in the PUCCH domain by using both frequency domain code division multiplexing and time domain code division multiplexing. At the receiving end of the base station, different terminals in the same domain can be distinguished by orthogonal code division multiplexing sequences, and different terminals on the same PUCCH domain appear as pulse values at different positions in the time domain impulse response.

In the embodiment of the present invention, the base station can obtain the terminal information of the terminal multiplexed in the PUCCH domain in real time. The terminal information may be used to represent the current multiplexing situation of the terminal multiplexed on the PUCCH domain, such as the number of terminals multiplexed on the PUCCH domain, the motion speed of each terminal, and the like. In addition, the terminal information may also indicate basic information of the terminal, including the IP address of the terminal, the running status of the terminal, and the like.

In practical applications, the number of terminals of the terminal multiplexed on the PUCCH domain may be obtained by the base station through periodic statistics. Moreover, since the motion speeds of different terminals multiplexed on the same PUCCH domain may also be different, the motion speed indicated by the terminal information acquired by the base station may refer to the motion speed of each terminal in the PUCCH domain.

In S200, the base station can adjust the power control parameter of the PUCCH domain according to the terminal information acquired in S100, and the power control parameter is a power control parameter, which can be used to adjust the uplink power of the terminal. The power control parameters may include open loop power control parameters and closed loop power control parameters, wherein the open loop power control parameters may be used to combat large scale fading, and the closed loop power control parameters may be used to control the fluctuation range of the uplink power of the terminal.

Optionally, after the base station adjusts the power control parameter of the PUCCH domain based on the terminal information, the method may further include: the base station sends the power control parameter to each terminal; and the base station separates any two terminals that adjust the uplink power based on the power control parameter; The power difference between the uplink powers of any two terminals is within a preset difference range.

In an actual application, the base station may adjust the power control parameters of the PUCCH domain according to the obtained terminal information, and then send the adjusted power control parameters to the terminal, so that the terminal can adjust its uplink according to the adjusted power control parameters. Power, the uplink power can be the uplink received power.

In the embodiment of the present invention, by adjusting the uplink power, the power difference between the uplink powers of any two terminals may be within a preset difference range, and the preset difference range may be used on the base station side to the PUCCH domain. The multiplexed terminals are separated, that is, the base station can distinguish between any two multiplexed terminals whose power difference between the uplink powers is within a preset difference range.

For example, the preset difference range is [5, 10]. If the power difference between the uplink powers of the two terminals is 6, the terminal signals of the two terminals may be separated on the base station side, and if the two terminals are If the power difference of the uplink power is 4 or 11, the base station may not be able to separate the two terminals, and the terminal signals sent by the two terminals may be filtered.

The setting of the preset difference range may include, but is not limited to, the following methods:

Manner 1: The base station can automatically adjust the preset difference range according to the number of terminals on the current PUCCH domain and the motion speed of each terminal.

Manner 2: Since the base station separates the terminals multiplexed in the PUCCH domain, the base station side can automatically set the preset difference range according to different channel environments and performance indicators of the base station receiver.

Method 3: The preset difference range may be customized by the user according to the actual situation. For example, after the terminal information obtained by the base station learns the terminal condition multiplexed in the current PUCCH domain, the preset difference range of the terminal multiplexed and multiplexed by the base station side can be customized.

Of course, in the actual application, the preset difference range may be set by using one or more of the foregoing manners, which is not limited in the embodiment of the present invention.

Optionally, when the base station adjusts the power control parameter of the PUCCH domain according to the obtained terminal information, the base station may determine the terminal number state according to the number of terminals multiplexed on the PUCCH domain, and determine the terminal motion state according to the motion speed of each terminal; The terminal number state is used to indicate the level of the number of terminals multiplexed on the PUCCH domain, and the terminal motion state is used to indicate the level of the motion speed of the terminal multiplexed on the PUCCH domain.

The level of the motion speed of the terminal multiplexed on the PUCCH domain may be the level of the maximum motion speed on the PUCCH domain, or may be the level of the average motion speed of the terminal multiplexed in the PUCCH domain.

In a practical application, the base station may set a threshold to determine the number of terminals in the PUCCH domain, and the level of the number of terminals multiplexed in the PUCCH domain indicated by the number of terminals may be related to a threshold set by the base station, for example, the base station is only configured. A threshold, the level of the number of terminals can be divided into high and low, or, if the base station sets two thresholds, the level of the number of terminals can be divided into high, medium and low.

For example, if the base station sets a threshold, such as 20, if the number of terminals multiplexed in the PUCCH field indicated by the terminal information obtained by the base station is 18, the number of terminals can be considered to be small, and the number of terminals is determined to be low, if the terminal information is If the number of terminals multiplexed in the indicated PUCCH field is 22, the number of terminals may be considered to be large, and the number of terminals is determined to be high.

Alternatively, the base station may also set multiple thresholds for determining the state of the number of terminals, such as two thresholds: threshold 1 and threshold 2, and the value of threshold 1 is less than the value of threshold 2. At this time, if the number of terminals multiplexed in the PUCCH domain is less than or equal to the threshold 1, the terminal number state may be determined to be low; if the number of terminals multiplexed in the PUCCH domain is greater than the threshold 2, the terminal number state may be determined to be high; In the case where the number of terminals is between the threshold 1 and the threshold 2, it can be determined that the terminal number state is medium.

It should be noted that the base station may set three or more thresholds according to actual conditions to determine the state of the number of terminals, which is not limited in the embodiment of the present invention.

Similarly, the base station can determine the motion speed of each terminal in the PUCCH domain according to the obtained terminal information, and can determine the motion state of the terminal according to the motion speed of each terminal, for example, if all the multiplexed terminals in the PUCCH domain If the moving speed is less than or equal to a threshold, then the multiplexed terminal motion state can be considered to be low speed; if one terminal motion speed is greater than the threshold, the multiplexed terminal motion state can be considered as high speed.

Or, in actual application, if the maximum motion speed of all the multiplexed terminals in the PUCCH domain is less than the preset speed value, the terminal motion state may be considered to be a low speed; if the minimum motion speed of all terminals in the PUCCH domain is If it is greater than the preset speed value, the terminal motion state can be considered as high speed.

Alternatively, the base station may determine the average motion speed of the terminal in the PUCCH domain according to the motion speed of each terminal in the terminal information and the number of terminals. If the average motion speed is greater than a preset speed value, the terminal motion state may be considered as a high speed. If the average motion speed is less than a preset speed value, the terminal motion state can be considered to be a low speed.

It should be noted that the setting of the threshold value or the preset speed value may be set according to actual conditions, such as channel capacity. Furthermore, the setting of the terminal number state or the terminal motion state may be determined by combining the foregoing one mode or a plurality of modes, which is not specifically limited in the embodiment of the present invention.

Then, the base station may adjust the power control parameters of the PUCCH domain based on the terminal number state and the terminal motion state, where the power control parameters include an open loop power control parameter and a closed loop power control parameter. For example, the adjustment of the power control parameters by the base station can be, but is not limited to, the following situations: the base station can adjust only the open loop power control parameters of the PUCCH domain according to the terminal number state and the terminal motion state; the base station can be based on the terminal number state and the terminal motion state. Only the closed loop power control parameters of the PUCCH domain are adjusted; the base station can adjust the open loop power control parameters and the closed loop power control parameters of the PUCCH domain according to the terminal number state or the terminal motion state. The specific adjustment process will be described later in detail, and will not be described in detail in the embodiments of the present invention.

In another embodiment of the present invention, when the base station determines the terminal number status according to the number of terminals, and determines the terminal motion state according to the motion speed of the terminal, the base station may determine the first quantity range in which the number of terminals is located, according to the quantity range and the number of terminals. Corresponding relationship between the states, determining that the first terminal number state corresponding to the first quantity range is the terminal number state of the terminal;

The base station determines a first speed range in which the motion speed is located, and determines, according to the correspondence between the speed range and the motion state of the terminal, the first terminal motion state corresponding to the first speed range is the terminal motion state of the terminal.

For example, it is assumed that the base station can preset a plurality of quantity ranges, and each quantity range corresponds to a terminal number status. Accordingly, the base station can also preset multiple speed ranges, and each speed range corresponds to one type of terminal. Movement state. Then, after determining the number of terminals and the motion speed of the terminal from the acquired terminal information, the base station may determine the first quantity range in which the number of terminals is located, thereby determining the state of the terminal number, and the base station may also correspond to the motion speed of the terminal. The speed range to determine the terminal's terminal motion status.

In the embodiment of the present invention, the base station may further set corresponding power control parameters for each quantity range, and set corresponding power control parameters for each speed range, and the subsequent base station may adjust according to the determined quantity range and speed range. Power control parameters of the PUCCH domain.

Optionally, when the base station adjusts the power control parameter of the PUCCH domain according to the terminal number state and the terminal motion state, the base station may determine whether the terminal number state is a preset terminal number state, and whether the terminal motion state is a preset motion state, where The preset terminal number state may indicate that the number of terminals multiplexed in the PUCCH domain is greater than or equal to a preset number threshold, and the preset terminal motion state may indicate that the maximum motion speed of the terminal multiplexed in the PUCCH domain is greater than or equal to a preset speed threshold. The preset terminal number state may include high, medium, and low states, and the preset terminal motion state may be high speed, medium speed, low speed, and the like.

For example, the base station can set the preset number threshold to be 18, and the preset terminal number status can be expressed as the number of terminals when the number of terminals is greater than or equal to 18, and the number of terminals at this time can be high; the base station can set the preset speed. The threshold value is 20, and the preset terminal motion state may be expressed as a terminal motion state when the maximum motion speed of the terminal multiplexed on the PUCCH domain is greater than or equal to 20, and the terminal motion state may be high speed at this time.

Then, if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, the base station may adjust the power control parameter of the PUCCH domain.

Optionally, if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, the base station may adjust the power control parameters of the PUCCH domain, which may be classified into, but not limited to, the following situations:

Case 1: If the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the base station may determine the average uplink power of the terminal, and may determine that the terminal multiplexed in the PUCCH domain is in the closed loop power control state. Maximum uplink power and minimum uplink power among the uplink power of all terminals;

The base station can adjust the open loop power control parameter to the average uplink power, and adjust the parameter range corresponding to the closed loop power control parameter to the first parameter range; wherein the first parameter range is determined by the maximum uplink power and the minimum uplink power.

In the embodiment of the present invention, if the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the open loop power control parameter and the closed loop power control parameter may be adjusted.

If the terminal number state and the terminal motion state meet the foregoing preset condition, the base station may determine an average uplink power of the terminal in the PUCCH domain, where the average uplink power may be the number of terminals on the PUCCH domain and the uplink power of each terminal. definite. For example, the base station may periodically count the PUCCH received power and the number of terminals of all terminals currently multiplexed in the PUCCH domain, and then calculate an arithmetic mean value of the PUCCH received power, which may be the above-mentioned average uplink power.

In practical applications, the base station can obtain the uplink power of all terminals in the closed loop power control state in real time, and then determine the maximum uplink power and the minimum uplink power, and the base station can determine the parameter range according to the maximum uplink power and the minimum uplink power. . For example, if the maximum uplink power is 40 and the minimum uplink power is 5, the parameter range determined by the base station may be [5, 40], or (5, 40), or [5, 40], that is, the value of the maximum uplink power. And the value of the minimum uplink power is used as two threshold values of the parameter range; or the parameter range determined by the base station may also be [4, 45], or (3, 42], or [2, 48), etc., that is, the base station determines The parameter range can include the maximum uplink power and the minimum uplink power.

Then, the base station can adjust the open loop power control parameter to the average uplink power, and adjust the parameter range corresponding to the closed loop power control parameter to the parameter range determined by the maximum uplink power and the minimum uplink power in the foregoing manner, for example, [5, 40 ].

Case 2: If the terminal number state is the preset terminal number state, and the terminal motion state is not the preset motion state, the base station may determine the average uplink power of all terminals and the uplink power of all terminals in the closed loop power control state. Maximum uplink power and minimum uplink power;

Then, the base station adjusts the open loop power control parameter to the average uplink power, and adjusts the parameter range of the closed loop power control parameter to the second parameter range; wherein the second parameter range is determined by the maximum uplink power and the minimum uplink power, and the second parameter The maximum value of the range is greater than the maximum value of the first parameter range, and/or the minimum value of the second parameter range is less than the minimum value of the first parameter range.

In case 2, the determination of the average uplink power, the maximum uplink power, and the minimum uplink power is the same as the case 1 and will not be described here.

It should be noted that the second parameter range determined in case 2 is different from the parameter range in case one.

For example, the maximum uplink power is 40 and the minimum uplink power is 5. In case 1, the parameter range determined by the base station may be [5, 40], or (5, 40], or [5, 40], etc., and since the terminal number state in the second case is the preset terminal number state, and the terminal The motion state is not the preset motion state, and the second parameter range corresponding to the closed loop power control parameter determined by the base station may be greater than the first parameter range of the case. For example, the second parameter range determined by the base station corresponds to the situation. The first parameter range of one may be [4, 41], or (4, 41], or [4, 41], etc.; or, if the first parameter range determined by the base station in case one is [4, 45], or (3, 42), or [2, 48), etc., the parameter range determined by the base station in case 2 may be [3, 46], or (1, 48], or [3, 58), etc. The range may also be determined by the maximum uplink power and the minimum uplink power, and the maximum value of the second parameter range is greater than the maximum value of the first parameter range, and/or the minimum value of the second parameter range is less than the minimum value of the first parameter range.

Case 3: If the terminal number state is not the preset terminal number state, and the terminal motion state is the preset motion state, the base station determines the average uplink power of all terminals and the maximum uplink of the uplink power of all terminals in the closed loop power control state. Power and minimum uplink power;

The base station adjusts the open loop power control parameter to the average uplink power, and adjusts the parameter range of the closed loop power control parameter to the second parameter range; wherein the second parameter range is determined by the maximum uplink power and the minimum uplink power, and the second parameter range is The maximum value is greater than the maximum value of the first parameter range, and/or the minimum value of the second parameter range is less than the minimum value of the first parameter range.

In the third case, the process of the base station determining the open loop power control parameter and the second parameter range corresponding to the closed loop power control parameter is the same as the case 2, and the embodiments of the present invention are not described herein again.

In order to more clearly describe the above three cases, the above three cases are respectively illustrated in conjunction with Table 1.

Table 1

In Table 1, Signal Interference Noise Ratio (SINR), Received Signal Strength Indicator (RSSI); P _{0_PUCCH} can be the initial value of the open loop power control parameter configured by the base station; closed loop power control parameter It can be RSSI_DOWN and RSSI_UP (or SINR_DOWN and SINR_UP).

Configuration 1 in Table 1 can be expressed as (RSSI_DOWN', RSSI_UP') (or can be (SINR_DOWN', SINR_UP')); Configuration 2 can be expressed as (RSSI_DOWN), RSSI_UP") (or can be (SINR_DOWN), SINR_UP ")), where the size relationship can be expressed as RSSI_DOWN <RSSI_DOWN'<RSSI_DOWN"<RSSI_UP"<RSSI_UP'<RSSI_UP.

Alternatively, SINR_DOWN <SINR_DOWN' <SINR_DOWN" <SINR_UP" <SINR_UP' < SINR_UP.

For example, when the terminal motion state is high speed, the base station can adjust the open loop power control parameter and the parameter range of the closed loop power control parameter regardless of the state of the terminal number; or, when the terminal number state is high, regardless of the terminal motion The state can also adjust the parameters of the open loop power control parameters and the closed loop power control parameters; that is, when the terminal motion state and the terminal number state are high, the base station can adjust the power control parameters accordingly. .

Embodiment 2

Referring to FIG. 3, based on the same inventive concept, an embodiment of the present invention further provides a power adjustment system 10 to which the above power adjustment method can be applied.

The power adjustment system 10 includes: a base station 20 and a terminal 30, where the base station 20 is configured to acquire terminal information of a terminal multiplexed on a PUCCH domain of a physical uplink control channel, where the terminal information is used to indicate the number of terminals and/or terminals in the PUCCH domain. The speed of movement of each terminal; and,

And adjusting, according to the terminal information, a power control parameter of the PUCCH domain, where the power control parameter is used to determine an uplink power of each terminal multiplexed on the PUCCH domain.

Optionally, the base station 20 is configured to: determine a terminal number state according to the number of terminals multiplexed on the PUCCH domain, and determine a terminal motion state according to the motion speed of each terminal; where the terminal number state a level indicating a number of terminals multiplexed on the PUCCH domain, the terminal motion state being used to indicate a level of motion speed of a terminal multiplexed on the PUCCH domain;

And adjusting power control parameters of the PUCCH domain according to the terminal number state and the terminal motion state, where the power control parameters include an open loop power control parameter and a closed loop power control parameter.

Optionally, the base station 20 is configured to:

Determining whether the state of the terminal number is a preset number of terminals, and whether the terminal motion state is a preset motion state, and obtaining a determination result; wherein the preset terminal number state is used to indicate multiplexing on the PUCCH domain The preset number of terminals is greater than or equal to a preset number threshold, and the preset terminal motion state is used to indicate that a maximum motion speed of the terminal multiplexed on the PUCCH domain is greater than or equal to a preset speed threshold;

And if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, adjusting a power control parameter of the PUCCH domain.

Optionally, the base station 20 is configured to:

If the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and The maximum uplink power and the minimum uplink power of the uplink power of all terminals in the closed loop power control state;

Adjusting the open loop power control parameter to the average uplink power, and adjusting a parameter range of the closed loop power control parameter to a first parameter range; wherein the first parameter range is determined by the maximum uplink power The minimum uplink power is determined.

Optionally, the base station 20 is configured to:

If the terminal number state is the preset terminal number state, and the terminal motion state is not the preset motion state, or if the terminal number state is not the preset terminal number state, and the The terminal motion state is the preset motion state, determining an average uplink power of all terminals multiplexed in the PUCCH domain, and a maximum uplink power and a minimum uplink power among uplink powers of all terminals in a closed loop power control state;

Adjusting the open loop power control parameter to the average uplink power, and adjusting a parameter range of the closed loop power control parameter to a second parameter range; wherein the second parameter range is determined by the maximum uplink power The minimum uplink power is determined, and a maximum value of the second parameter range is greater than a maximum value of the first parameter range, and/or a minimum value of the second parameter range is smaller than a minimum value of the first parameter range.

Optionally, the base station 20 is configured to:

After adjusting the power control parameter of the PUCCH domain based on the terminal information, sending the power control parameter to each terminal;

Separating any two terminals that adjust the uplink power based on the power control parameter; wherein, the power difference between the uplink powers of any two terminals is within a preset difference range.

The foregoing power adjustment system is proposed in the same concept as the power adjustment method provided by the first aspect of the present invention. Therefore, various variations and specific embodiments of the foregoing method in the embodiments of the present invention are equally applicable to the power of the embodiment of the present invention. The system is adjusted, so for the sake of brevity of the description, it will not be described in detail here.

Embodiment 3

A computer device is also provided in the embodiment of the present invention. Referring to FIG. 4, the computer device includes a processor 401 and a memory 402. The processor 401 is configured to implement the computer program stored in the memory 402 to implement the present invention. The steps provided in the example are power adjustment methods.

Optionally, the processor 401 may be a central processing unit, an application specific integrated circuit (ASIC), and may be one or more integrated circuits for controlling program execution, and may be a field programmable gate array. The hardware circuit developed by Field Programmable Gate Array (FPGA) can be a baseband processor.

Optionally, the processor 401 can include at least one processing core.

Optionally, the electronic device further includes a memory 402. The memory 402 may include a read only memory (ROM), a random access memory (RAM), and a disk storage. The memory 402 is used to store data required by the processor 401 to operate. The number of memories 402 is one or more.

Embodiment 4

The embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, and when the computer program is executed by the processor, the steps of the power adjustment method provided by the embodiment of the present invention are implemented.

In the embodiment of the present invention, it should be understood that the disclosed power adjustment system and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit or unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.

The functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may also be an independent physical module.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solutions of the embodiments of the present invention may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a computer device, for example, A personal computer, server, or network device or the like, or a processor performs all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a Universal Serial Bus flash drive (USB), a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), A variety of media that can store program code, such as a disk or an optical disk.

The above embodiments are only used to describe the technical solutions of the present invention in detail, but the description of the above embodiments is only for facilitating the understanding of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily conceived by those skilled in the art are intended to be included within the scope of the present invention.

Claims (14)

1. A power adjustment method, the method comprising:

   The base station acquires terminal information of the terminal multiplexed on the PUCCH domain of the physical uplink control channel, where the terminal information is used to indicate the number of terminals multiplexed on the PUCCH domain and/or the motion speed of each terminal;

   The base station adjusts a power control parameter of the PUCCH domain based on the terminal information, where the power control parameter is used to determine an uplink power of each terminal multiplexed in the PUCCH domain.
2. The method according to claim 1, wherein the base station adjusts the power control parameters of the PUCCH domain based on the terminal information, including:

   Determining, by the base station, a terminal number state according to the number of terminals multiplexed on the PUCCH domain, and determining a terminal motion state according to the motion speed of each terminal; wherein the terminal number state is used to indicate the PUCCH domain a level of the number of multiplexed terminals, the terminal motion state being used to indicate a level of motion speed of the terminal multiplexed on the PUCCH domain;

   The base station adjusts a power control parameter of the PUCCH domain according to the terminal number state and the terminal motion state, where the power control parameter includes an open loop power control parameter and a closed loop power control parameter.
3. The method according to claim 2, wherein the base station adjusts the power control parameters of the PUCCH domain according to the terminal number state and the terminal motion state, including:

   Determining, by the base station, whether the state of the terminal number is a preset terminal number state, and whether the terminal motion state is a preset motion state; wherein the preset terminal number state is used to indicate multiplexing on the PUCCH domain The preset number of the terminal is used to indicate that the maximum motion speed of the terminal multiplexed on the PUCCH domain is greater than or equal to a preset speed threshold;

   And if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, adjusting a power control parameter of the PUCCH domain.
4. The method according to claim 3, wherein if the number of terminals is the preset number of terminals, or the terminal motion state is the preset motion state, adjusting the work of the PUCCH domain Control parameters, including:

   If the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and The maximum uplink power and the minimum uplink power of the uplink power of all terminals in the closed loop power control state;

   The base station adjusts the open loop power control parameter to the average uplink power, and adjusts a parameter range of the closed loop power control parameter to a first parameter range, where the first parameter range is determined by the maximum uplink The power is determined with the minimum uplink power.
5. The method according to claim 3, wherein if the number of terminals is the preset number of terminals, or the terminal motion state is the preset motion state, adjusting the power control of the PUCCH domain Parameters, including:

   If the terminal number state is the preset terminal number state, and the terminal motion state is not the preset motion state, or if the terminal number state is not the preset terminal number state, and the The terminal motion state is the preset motion state, and the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and a maximum uplink power and a minimum uplink of uplink power of all terminals in a closed loop power control state. power;

   The base station adjusts the open loop power control parameter to the average uplink power, and adjusts a parameter range of the closed loop power control parameter to a second parameter range, where the second parameter range is determined by the maximum uplink The power is determined with the minimum uplink power, and a maximum value of the second parameter range is greater than a maximum value of the first parameter range, and/or a minimum value of the second parameter range is smaller than the first parameter range Minimum value.
6. The method according to any one of claims 1-5, wherein after the base station adjusts the power control parameter of the PUCCH domain based on the terminal information, the method further includes:

   Sending, by the base station, the power control parameter to each terminal;

   The base station separates any two terminals that adjust the uplink power based on the power control parameter; wherein, the power difference between the uplink powers of any two terminals is within a preset difference range.
7. A power adjustment system, characterized in that the system comprises a base station and a terminal,

   The base station is configured to acquire terminal information of a terminal multiplexed on a PUCCH domain of a physical uplink control channel, where the terminal information is used to indicate a quantity of terminals multiplexed on the PUCCH domain and/or a motion speed of each terminal; and,

   And adjusting, according to the terminal information, a power control parameter of the PUCCH domain, where the power control parameter is used to determine an uplink power of each terminal multiplexed on the PUCCH domain.
8. The system of claim 7 wherein said base station is configured to:

   Determining a terminal number state according to the number of terminals multiplexed on the PUCCH domain, and determining a terminal motion state according to the motion speed of each terminal; wherein the terminal number state is used to indicate multiplexing on the PUCCH domain a level of the number of terminals, the terminal motion state being used to indicate a level of motion speed of the terminal multiplexed on the PUCCH domain;

   And adjusting power control parameters of the PUCCH domain according to the terminal number state and the terminal motion state, where the power control parameters include an open loop power control parameter and a closed loop power control parameter.
9. The system of claim 8 wherein said base station is configured to:

   Determining whether the state of the terminal number is a preset number of terminals, and whether the terminal motion state is a preset motion state, and obtaining a determination result; wherein the preset terminal number state is used to indicate multiplexing on the PUCCH domain The preset number of terminals is greater than or equal to a preset number threshold, and the preset terminal motion state is used to indicate that a maximum motion speed of the terminal multiplexed on the PUCCH domain is greater than or equal to a preset speed threshold;

   And if the terminal number state is the preset terminal number state, or the terminal motion state is the preset motion state, adjusting a power control parameter of the PUCCH domain.
10. The system of claim 9 wherein said base station is configured to:

    If the terminal number state is the preset terminal number state, and the terminal motion state is the preset motion state, the base station determines an average uplink power of all terminals multiplexed in the PUCCH domain, and The maximum uplink power and the minimum uplink power of the uplink power of all terminals in the closed loop power control state;

    Adjusting the open loop power control parameter to the average uplink power, and adjusting a parameter range of the closed loop power control parameter to a first parameter range; wherein the first parameter range is determined by the maximum uplink power The minimum uplink power is determined.
11. The system of claim 9 wherein said base station is configured to:

    If the terminal number state is the preset terminal number state, and the terminal motion state is not the preset motion state, or if the terminal number state is not the preset terminal number state, and the The terminal motion state is the preset motion state, determining an average uplink power of all terminals multiplexed in the PUCCH domain, and a maximum uplink power and a minimum uplink power among uplink powers of all terminals in a closed loop power control state;

    Adjusting the open loop power control parameter to the average uplink power, and adjusting a parameter range of the closed loop power control parameter to a second parameter range; wherein the second parameter range is determined by the maximum uplink power The minimum uplink power is determined, and a maximum value of the second parameter range is greater than a maximum value of the first parameter range, and/or a minimum value of the second parameter range is smaller than a minimum value of the first parameter range.
12. The system of any of claims 7-11, wherein the base station is configured to:

    After adjusting the power control parameter of the PUCCH domain based on the terminal information, sending the power control parameter to each terminal;

    Separating any two terminals that adjust the uplink power based on the power control parameter; wherein, the power difference between the uplink powers of any two terminals is within a preset difference range.
13. A computer apparatus, characterized in that the apparatus comprises a processor, the processor being operative to implement the steps of the method of any of claims 1-6 when executing a computer program stored in a memory.
14. A computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the method of any of claims 1-6.

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