CN111417202B - Calibration method, terminal and network equipment - Google Patents

Calibration method, terminal and network equipment Download PDF

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Publication number
CN111417202B
CN111417202B CN201910014468.9A CN201910014468A CN111417202B CN 111417202 B CN111417202 B CN 111417202B CN 201910014468 A CN201910014468 A CN 201910014468A CN 111417202 B CN111417202 B CN 111417202B
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China
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calibration
pcg
time
frequency position
terminal
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CN111417202A (en
Inventor
郭春霞
杨拓
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a calibration method, a terminal and network equipment, wherein the calibration method comprises the following steps: receiving PA calibration information from a network device; and selecting a target time-frequency position of the PCG according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG. According to the scheme of the invention, the PA calibration can be activated in an event triggering mode, and additional signaling is not needed to instruct the terminal to send parameters in a single-shot mode, so that the system signaling overhead is reduced, the flexibility of the PA calibration time-frequency resource scheduling is ensured, the PA calibration is prevented from being carried out by all terminals at a certain moment, and the reasonable utilization of uplink resources is realized.

Description

Calibration method, terminal and network equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a calibration method, a terminal, and a network device.
Background
Currently, millimeter wave terminals such as user equipment (UserEquipment, UE) of New Radio (NR) systems can support an antenna structure employing a 4-antenna array, where each antenna element is a dual polarized antenna, and each polarization dimension requires a Power Amplifier (PA) for amplification, and considering two-module antenna UE, 16 PAs are required in total. The millimeter wave UE needs to consider the balance between PA linearity and power consumption. In order to ensure higher linearity when the PA is operating in the non-linear region of higher output power, the 3GPP standard considers the introduction of digital pre-distortion (DPD) techniques. The real-time DPD technique requires adding a dedicated receiving link to the rf link for performing DPD calibration in real time, but the newly added rf link increases the cost of the terminal, so that DPD calibration can be performed by taking into account the method of introducing the power calibration interval (PACalibration Gap, PCG).
The PCG method is to reserve a dedicated Uplink (UL) time interval for the UE internal circuit to perform DPD calibration, and in this uplink time interval, the UE does not perform uplink transmission or downlink reception. The PCG method ensures DPD coefficient calibration, but increases system signaling overhead. Specifically, the PCG method needs to define a triggering mode, a time point, and the like of PA calibration. While the current trigger mode may include both periodic triggers and event triggers. The PCG may be classified into a rank restriction interval (rank restricted gap) and a total interval (total gap) according to whether UL transmission is performed in the PCG, and further rank restricted gap is mainly used for UEs supporting UL MIMO (uplink multiple input multiple output), where the UE performs PA calibration on one layer and simultaneously performs uplink data transmission on another layer, and total gap means that the UE does not perform any data transmission in the interval.
Currently, for rank restricted gap, a downlink control information (DownlinkControl Information, DCI) resource scheduling mode is adopted, a new DCI message is allocated to a UE of a single-shot 1TX, which is used to represent parameters such as a time-frequency position and a transmit power when the UE 1TX is performed, but this mode increases system signaling overhead; for total gap, a manner of radio resource control (Radio Resource Control, RRC) signaling may be considered to configure PA calibration time points and periods for the terminal, but this manner may cause that the UE performs PA calibration when there is data to be transmitted, delay uplink transmission, and there is a possibility that all UEs perform PA calibration at a certain time, thereby causing a situation that uplink resources are not utilized, and reducing flexibility of resource scheduling.
Disclosure of Invention
The embodiment of the invention provides a calibration method, a terminal and network equipment, which are used for solving the problems of increasing system signaling overhead and reducing resource scheduling flexibility caused by the existing PA calibration method.
In a first aspect, an embodiment of the present invention provides a calibration method, which is applied to a terminal, including:
receiving PA calibration information from a network device;
and selecting a target time-frequency position of the PCG according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
In a second aspect, an embodiment of the present invention provides a calibration method, applied to a network device, including:
and sending the PA calibration information to a terminal, selecting a target time-frequency position of the PCG by the terminal according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
In a third aspect, an embodiment of the present invention provides a terminal, including a receiver and a processor;
wherein the receiver is configured to: receiving PA calibration information from the network device;
the processor is configured to: and selecting a target time-frequency position of the PCG according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
In a fourth aspect, an embodiment of the present invention provides a network device, including a transmitter and a receiver;
Wherein the transmitter is configured to: and sending the PA calibration information to the terminal, selecting a target time-frequency position of the PCG by the terminal according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
In a fifth aspect, an embodiment of the present invention provides a communication device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the computer program when executed by the processor may implement the steps of the calibration method applied to a terminal or the steps of the calibration method applied to a network device. The communication device may be selected as a terminal or network device
In a sixth aspect, an embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the computer program when executed by a processor may implement the steps of the calibration method applied to a terminal or the steps of the calibration method applied to a network device.
In the embodiment of the invention, the PA calibration information is received from the network equipment, the target time-frequency position of the PCG is selected according to the PA calibration information, and the PA calibration is carried out at the target time-frequency position of the PCG, so that the activation of the PA calibration in an event-triggered mode can be realized, and additional signaling is not needed to instruct the single-shot transmission parameters of the terminal, thereby reducing the signaling cost of the system, ensuring the flexibility of the scheduling of the PA calibration time-frequency resources, avoiding the PA calibration of all terminals in a certain time, and realizing the reasonable utilization of uplink resources.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a flow chart of a calibration method according to an embodiment of the invention;
FIG. 2 is a diagram illustrating selecting a target time-frequency location of a PCG according to an embodiment of the present invention;
FIG. 3 is a flow chart of another calibration method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention 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 invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an embodiment of the present invention provides a calibration method applied to a terminal, where the method may include the following steps:
step 101: PA calibration information is received from a network device.
Wherein the PA calibration information may be transmitted by a network device, such as a base station BS, through an RRC message. The receiving PA calibration information from the network device in step 101 may specifically be: the terminal receives the PA calibration information sent by the network device through the RRC message.
Alternatively, the terminal may first send a PA calibration request message to the network device before receiving the PA calibration information from the network device, so that the network device sends an RRC message related to PA calibration to the terminal after receiving the PA calibration request message. Specifically, the terminal in the RRC connected state may report to the base station whether it has PCG capability and the type of PCG supported when it has PCG capability, i.e., whether it is a full gap (total gap) or a rank restriction gap (rank restricted gap). For terminals supporting PCG capability, if the transmission power of the terminal exceeds a certain power threshold P T And the duration is greater than the preset time threshold T, the terminal may notify the base station that the terminal itself is in the nonlinear region of the PA, and Digital Predistortion (DPD) calibration is required, that is, send a PA calibration request message to the base station. After receiving the PA calibration request message, the base station may send an RRC message carrying PA calibration information to the terminal, where the PA calibration information is specifically a series of information related to PA calibration, and is used for PA calibration by the terminal. In this way, by means of the PA calibration request message of the terminal, the PA calibration information is issued, and the PA calibration of the terminal can be activated in an event-triggered manner.
Step 102: and selecting a target time-frequency position of the PCG according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
The target time-frequency position of the PCG is specifically a time-frequency position for PA calibration.
In the embodiment of the invention, the PA calibration information is received from the network equipment, the target time-frequency position of the PCG is selected according to the PA calibration information, and the PA calibration is carried out at the target time-frequency position of the PCG, so that the activation of the PA calibration in an event-triggered mode can be realized, and additional signaling is not needed to instruct the single-shot transmission parameters of the terminal, thereby reducing the signaling cost of the system, ensuring the flexibility of the scheduling of the PA calibration time-frequency resources, avoiding the PA calibration of all terminals in a certain time, and realizing the reasonable utilization of uplink resources.
In an embodiment of the present invention, optionally, the PA calibration information may include at least one of the following:
the method comprises the steps of PCG period, PCG length, starting point of the current PCG period, PCG candidate time-frequency position set and single-shot scheduling parameters of a first type terminal.
Further, the starting point (i.e., starting time point) of the current PCG period may be any one of the following: the time point when the terminal transmits the PA calibration request message, the time point when the network device receives the PA calibration request message, and the time point when the network device is specified in the PA calibration information. Wherein the point in time specified by the network device may be based on network requirements. Since the PCG period is generally related to parameters such as the actual SCS, it is generally not configurable by a preconfigured manner.
Further, the candidate time-frequency locations in the PCG candidate time-frequency location set may be selected as Radio Bearers (RBs) that are randomly and uniformly distributed over the entire physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), and the number of RBs in the set may be determined by a specific PCG period. In configuring the candidate time-frequency location of the PCG, the network device may determine the candidate time-frequency location of the PCG based on actual requirements.
Further, the PCG of the first type of terminal is a Rank-restricted gap (Rank-restricted gap). In general, a terminal performing space diversity gain using UL MIMO will use a single-shot scheduling parameter of the first type terminal, and it is assumed that all MIMO terminals with 2TX changed to 1TX use the same single-shot scheduling parameter of the first type terminal at this time, so as to ensure that the quality of the terminal transmitting signal and the radio frequency index meet the requirements. The single-shot scheduling parameter of the first type terminal is an optional parameter, and is parameter information related to scheduling in NR DCI format 0-1, specifically, see 38.212.7.3.1.1 in 3GPP protocol.
In an embodiment of the present invention, optionally, step 102 may include:
and the terminal sequentially selects the target time-frequency position of the PCG in each PCG period according to the PA calibration information, and performs PA calibration on the target time-frequency position of the PCG.
In this way, when the terminal performs the PA calibration, the terminal enters the next PCG period only when the PA calibration of the current PCG period is completed, until the PA calibration is deactivated, thereby ensuring the orderly performance of the PA calibration process.
In the embodiment of the present invention, when the terminal selects the target time-frequency position of the PCG, the terminal may select the target time-frequency position according to the following two modes, which are respectively described in detail below.
Mode one
In this way, the terminal may autonomously select the target time-frequency location of the PCG.
Optionally, the process of selecting the target time-frequency location of the PCG in step 102 may include:
and the terminal autonomously selects the target time-frequency position of the PCG according to the PA calibration information.
Further, the process of autonomously selecting the target time-frequency location of the PCG by the terminal according to the PA calibration information may include:
when the terminal is in any one of the following states, the target time-frequency position of the PCG is selected automatically according to the PA calibration information: state 1, state 2, and state 3.
Wherein, while in state 1, the terminal has no uplink data transmission and has no over-scheduling request (Scheduling Request, SR) transmitted; while in state 2, the terminal has transmitted SR but has not received uplink grant (UL grant); when in the state 3, the terminal has uplink data to be transmitted, and the time difference between the time-frequency position of the uplink resource configured in the uplink authorization and the current time meets the requirement of PA calibration.
Further, in order to ensure that the network device knows about the PA calibration process of the terminal, after performing PA calibration at the target time-frequency location of the PCG in this manner, the terminal may send indication information for indicating that PA calibration has been completed to the network device, so that the network device knows that the terminal has completed PA calibration.
It can be understood that in this manner, regardless of which PCG type is supported by the terminal, if the current terminal is in state 1, state 2 or state 3, the terminal may autonomously select a plurality of continuous uplink symbols to perform PA calibration according to the received PA calibration information, and the specific duration may be determined by the PCG length. And notifies the network device after PA calibration for each PCG period is completed. After the PA calibration of the current PCG period is completed, the terminal may enter the next PCG period until the PA calibration is deactivated.
Mode two
In the second mode, the terminal may further select the target time-frequency location of the PCG in combination with upper layer authorization information based on PA calibration information, where the upper layer authorization information may be sent through a Media access control (Media AccessControl, MAC) layer scheduling message.
Optionally, the process of selecting the target time-frequency location of the PCG in step 102 may include:
and the terminal selects a target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information.
Further, the process of selecting the target time-frequency position of the PCG by the terminal according to the PA calibration information and the received time-frequency resource configuration information may include:
the terminal determines a PCG candidate time-frequency position set according to the PA calibration information and determines the configured uplink resource time-frequency position according to the received time-frequency resource configuration information;
and the terminal selects a time-frequency position overlapped with the PCG candidate time-frequency position in the PCG candidate time-frequency position set from the configured uplink resource time-frequency positions as a target time-frequency position of the PCG.
When the target time-frequency position of the PCG is selected in combination with the upper layer authorization information, the terminal may be in state 4, and when in state 4, the terminal does not perform PA calibration in the current PCG period, and the time difference between the end point of the current PCG period and the end point of transmitting uplink data does not satisfy the requirement of PA calibration once.
Further, when there are multiple overlapping time-frequency positions between the configured uplink resource time-frequency position and the PCG candidate time-frequency position in the PCG candidate time-frequency position set, the terminal may select a corresponding time-frequency position from the multiple overlapping time-frequency positions according to a preset condition to perform PA calibration.
It may be appreciated that the above preset conditions may be pre-agreed by the terminal and the network device, may be agreed by a protocol, or may be configured by the network device, which is not limited in the embodiment of the present invention.
Hereinafter, a PA calibration procedure in this embodiment will be described by taking a time-frequency position as RB as an example.
For example, referring to fig. 2, assume that the boxes in fig. 2 represent the overall uplink RB configuration, where box 0 represents the time-frequency locations available for PA calibration, each box representing 1 RB. If, in a cell, a base station provides scheduling services for 3 terminals UE a, UE B and UE C needing PA calibration at the same time, block 1 indicates the resource configuration allocated by the base station MAC layer to UE a, block 2 indicates the resource configuration allocated by the base station MAC layer to UE B, and block 3 indicates the resource configuration allocated by the base station MAC layer to UE C, then the UE may select, as a target time-frequency position, an RB overlapping with a time-frequency position available for PA calibration, a scheduling resource configured by the UE, that is, the UE a may select, as a target time-frequency position for single-layer PA calibration, RB a in fig. 2 and perform PA calibration, and the UE B may select, as a target time-frequency position for single-layer PA calibration, RB B in fig. 2 and perform PA calibration.
It will be appreciated that in this manner, the operation at the target time-frequency location may be different for terminals of different PCG types. For example, the total gap type terminal can only perform PA calibration without any data transmission at the target time-frequency position; while rank restricted gap type terminals can selectively perform PA calibration on one TX link at the target time-frequency location, and perform normal uplink data transmission on the other TX link. In addition, depending on the role of UL MIMO at present, a terminal of rank restrictedgap type may have two sets of scheduling parameters at the time of single shot, where a single shot terminal may perform PA calibration using the above PA calibration information when UL MIMO is used for spatial diversity, and a single shot terminal may use the scheduling parameters in DCI when UL MIMO is used for spatial multiplexing.
In an embodiment of the present invention, optionally, after step 101, the method may further include:
the terminal receives indication information for indicating to stop the PA calibration from the network equipment;
and the terminal stops the PA calibration according to the instruction information for instructing to stop the PA calibration.
In this way, the PA calibration can be deactivated in an event-triggered manner, thereby meeting the requirement of reasonably utilizing uplink resources.
Alternatively, the indication information for indicating to stop PA calibration may be transmitted by the network device according to notification information for notifying to stop PA calibration received from the terminal; or, the method is transmitted by the network device in the case that the network device does not receive the notification information for notifying restarting the PA calibration within the preset time after transmitting the PA calibration information.
It can be understood that, in a specific implementation, the terminal performing PA calibration may monitor its own transmit power from receiving an RRC message carrying PA calibration information sent by the network device, and if the transmit power of the terminal is lower than a preset power threshold PT and the duration is greater than a certain preset time threshold t, the terminal may send, through the RRC message, notification information for notifying that PA calibration is stopped to the network device, so as to notify the network device that it may stop PA calibration verification; after receiving the notification information, the network device may send, to the terminal, indication information for indicating to stop PA calibration through an RRC message, so as to indicate the terminal to stop the flow of PA calibration verification after receiving the RRC message.
In another embodiment, the network device may start the timer from sending the RRC message carrying the PA calibration information, and if the RRC message that the terminal restarts PA calibration is not received within the preset time, the network device may determine that the terminal may stop PA calibration verification, and send, to the terminal, indication information for indicating to stop PA calibration through the RRC message, so as to indicate the terminal to stop the flow of PA calibration verification after receiving the RRC message.
Referring to fig. 3, an embodiment of the present invention further provides a calibration method applied to a network device, where the method may include the following steps:
step 301: and sending the PA calibration information to a terminal, selecting a target time-frequency position of the PCG by the terminal according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
In the embodiment of the invention, the terminal can select the target time-frequency position of the PCG according to the PA calibration information by sending the PA calibration information to the terminal, and perform PA calibration at the target time-frequency position of the PCG, so that the PA calibration is activated in an event-triggered mode, additional signaling is not needed to instruct the terminal to send parameters singly, the signaling overhead of the system is reduced, the flexibility of the scheduling of the PA calibration time-frequency resources is ensured, all the terminals are prevented from performing PA calibration at a certain moment, and the reasonable utilization of uplink resources is realized.
Optionally, the sending PA calibration information to the terminal in step 301 may specifically be: the network device transmits PA calibration information to the terminal through an RRC message.
In an embodiment of the present invention, optionally, the PA calibration information may include at least one of the following:
the method comprises the steps of PCG period, PCG length, start of the current PCG period, PCG candidate time-frequency position set and single-shot scheduling parameters of a first type terminal;
wherein the PCG of the first type terminal is a rank restriction interval.
Optionally, after step 301, the method may further include:
and when uplink data of the terminal are received, determining the transmission condition of the terminal according to the target time-frequency position of the PCG calibrated by the PA of the terminal and the transmission position of the uplink data.
It will be appreciated that for a terminal of the type rank restricted gap, if the network device monitors uplink data at the time-frequency location of the PCG and the terminal does not complete PA calibration within the current PCG period, the network device may consider that the terminal is now transmitting data using 1TX and performing associated 1TX data demodulation. For a total gap type terminal, if the network device does not receive specific uplink data at the overlapping portion of the time-frequency position configured for the terminal and the candidate time-frequency position of the PCG, the network device may consider that the terminal performs PA calibration at this time.
In an embodiment of the present invention, optionally, after step 301, the method may further include:
the network device transmits indication information for indicating to stop PA calibration to the terminal.
In this way, the PA calibration can be deactivated in an event-triggered manner, thereby meeting the requirement of reasonably utilizing uplink resources.
Optionally, the indication information for indicating to stop PA calibration is sent by the network device according to notification information received from the terminal for notifying to stop PA calibration; or the network device sends the PA calibration information when the network device does not receive the notification information for notifying to restart the PA calibration within the preset time after sending the PA calibration information.
The calibration method of the present invention is described in the above embodiments, and the terminal and the network device of the present invention will be described with reference to the embodiments and the accompanying drawings.
Referring to fig. 4, an embodiment of the present invention also provides a terminal, which may include a processor 41, a transmitter 42, a receiver 43, and a memory 44.
Wherein the receiver 43 is configured to: receiving PA calibration information from a network device;
the processor 41 is configured to: and selecting a target time-frequency position of the PCG according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
According to the terminal provided by the embodiment of the invention, the PA calibration information is received from the network equipment, the target time-frequency position of the PCG is selected according to the PA calibration information, and the PA calibration is carried out at the target time-frequency position of the PCG, so that the activation of the PA calibration in an event-triggered mode can be realized, and additional signaling is not needed to instruct the single-shot transmission parameters of the terminal, thereby reducing the signaling overhead of the system, ensuring the flexibility of the scheduling of the PA calibration time-frequency resources, avoiding the PA calibration of all terminals at a certain moment in a concentrated manner, and realizing the reasonable utilization of uplink resources.
In an embodiment of the present invention, optionally, the receiver 43 may be configured to:
and receiving the PA calibration information sent by the network equipment through the RRC message.
Optionally, the PA calibration information may include at least one of:
the method comprises the steps of PCG period, PCG length, starting point of the current PCG period, PCG candidate time-frequency position set and single-shot scheduling parameters of a first type terminal;
wherein the PCG of the first type terminal is a rank restriction interval.
Optionally, the processor 41 may further be configured to:
and according to the PA calibration information, selecting the target time-frequency position of the PCG in each PCG period in sequence, and carrying out PA calibration on the target time-frequency position of the PCG.
Optionally, the processor 41 may further be configured to:
according to the PA calibration information, the target time-frequency position of the PCG is selected autonomously; or alternatively
And selecting a target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information.
Optionally, the processor 41 may further be configured to:
determining a PCG candidate time-frequency position set according to the PA calibration information, and determining a configured uplink resource time-frequency position according to the time-frequency resource configuration information;
and selecting a time-frequency position overlapped with the PCG candidate time-frequency position in the PCG candidate time-frequency position set from the configured uplink resource time-frequency positions as a target time-frequency position of the PCG.
Optionally, when there are multiple overlapping time-frequency positions between the configured uplink resource time-frequency position and a PCG candidate time-frequency position in the PCG candidate time-frequency position set, the processor 41 is further configured to:
and selecting a corresponding time-frequency position from the plurality of overlapped time-frequency positions according to preset conditions to perform PA calibration.
Optionally, the transmitter 42 may be further configured to:
and sending indication information for indicating that the PA calibration is completed to the network equipment.
Optionally, the receiver 43 may further be configured to: receiving, from the network device, indication information for indicating to stop PA calibration;
the processor 41 may be further configured to: and stopping the PA calibration according to the indication information for indicating to stop the PA calibration.
Optionally, the indication information for indicating to stop PA calibration is sent by the network device according to notification information received from the terminal for notifying to stop PA calibration; or the network device sends the PA calibration information when the network device does not receive the notification information for notifying to restart the PA calibration within the preset time after sending the PA calibration information.
In fig. 4, a bus architecture (represented by bus 40), the bus 40 may comprise any number of interconnected buses and bridges, with the bus 40 connecting together various circuits including one or more processors, represented by processor 41, and memory, represented by memory 44. The transmitter 42 and the receiver 43 may be a transceiver interface, and the transmitter 42 and the receiver 43 may be connected to the processor 41 and the memory 44 via the bus 40.
The processor 41 is responsible for managing the bus 40 and general processing, while the memory 44 may be used to store data used by the processor 41 in performing operations.
Referring to fig. 5, an embodiment of the present invention also provides a network device that may include a processor 51, a transmitter 52, a receiver 53, and a memory 54.
Wherein the transmitter 52 is configured to: and sending the PA calibration information to the terminal, selecting a target time-frequency position of the PCG by the terminal according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
According to the network equipment provided by the embodiment of the invention, the terminal can select the target time-frequency position of the PCG according to the PA calibration information by sending the PA calibration information to the terminal, and the PA calibration is carried out at the target time-frequency position of the PCG, so that the PA calibration is activated in an event-triggered mode, additional signaling is not needed to instruct the single-sending parameters of the terminal, the system signaling overhead is reduced, the flexibility of the scheduling of the PA calibration time-frequency resources is ensured, all the terminals are prevented from carrying out the PA calibration at a certain moment in a concentrated manner, and the reasonable utilization of uplink resources is realized.
In an embodiment of the present invention, optionally, the transmitter 52 may further be configured to:
and sending the PA calibration information to the terminal through an RRC message.
Optionally, the PA calibration information may include at least one of:
The method comprises the steps of PCG period, PCG length, starting point of the current PCG period, PCG candidate time-frequency position set and single-shot scheduling parameters of a first type terminal;
wherein the PCG of the first type terminal is a rank restriction interval.
Optionally, the processor 51 may be further configured to:
and when uplink data of the terminal are received, determining the transmission condition of the terminal according to the target time-frequency position of the PCG calibrated by the PA of the terminal and the transmission position of the uplink data.
Optionally, the transmitter 52 may be further configured to:
and sending indication information for indicating to stop the PA calibration to the terminal.
Optionally, the indication information for indicating to stop PA calibration is sent by the network device according to notification information received from the terminal for notifying to stop PA calibration; or the network device sends the PA calibration information when the network device does not receive the notification information for notifying to restart the PA calibration within the preset time after sending the PA calibration information.
In fig. 5, a bus architecture (represented by bus 50), the bus 50 may comprise any number of interconnected buses and bridges, with the bus 50 connecting together various circuits, including one or more processors, represented by processor 51, and memory, represented by memory 54. The transmitter 52 and the receiver 53 may be a transceiver interface, and the transmitter 52 and the receiver 53 may be connected to the processor 51 and the memory 54 through the bus 50.
The processor 51 is responsible for managing the bus 50 and general processing, while the memory 54 may be used to store data used by the processor 51 in performing operations.
In addition, the embodiment of the invention also provides a communication device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the computer program can realize each process of the calibration method embodiment when being executed by the processor, and can achieve the same technical effect, and the repetition is avoided, and the description is omitted here. Alternatively, the communication device may be a terminal or a network device.
In particular, referring to fig. 6, an embodiment of the present invention also provides a communication device that may include a bus 61, a transceiver 62, an antenna 63, a bus interface 64, a processor 65, and a memory 66. The communication device may be selected as a terminal or a network device.
In an embodiment of the present invention, the communication device may further include: a computer program stored on the memory 66 and executable on the processor 65.
Optionally, when the communication device is a terminal, the computer program may implement the following steps when executed by the processor 65:
Receiving PA calibration information from a network device; and selecting a target time-frequency position of the PCG according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
Optionally, when the communication device is a network device, the computer program may implement the following steps when executed by the processor 65:
and sending the PA calibration information to a terminal, selecting a target time-frequency position of the PCG by the terminal according to the PA calibration information, and carrying out PA calibration on the target time-frequency position of the PCG.
In fig. 6, a bus architecture (represented by bus 61), the bus 61 may comprise any number of interconnected buses and bridges, with the bus 61 linking together various circuits, including one or more processors, represented by processor 65, and memory, represented by memory 66. The bus 61 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 64 provides an interface between bus 61 and transceiver 62. The transceiver 62 may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 65 is transmitted over a wireless medium via the antenna 63, and further, the antenna 63 receives data and transmits the data to the processor 65.
The processor 65 is responsible for managing the bus 61 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 66 may be used to store data used by processor 65 in performing operations.
Alternatively, the processor 65 may be CPU, ASIC, FPGA or a CPLD.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above-mentioned processes of the calibration method embodiment applied to a terminal or a network device, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Computer-readable media include both permanent and non-permanent, removable and non-removable media, and information storage may be implemented by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
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.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
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 invention 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 invention.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (18)

1. A calibration method applied to a terminal, comprising:
receiving power amplifier PA calibration information from a network device;
selecting a target time-frequency position of a power calibration interval PCG according to the PA calibration information, and performing PA calibration on the target time-frequency position of the PCG;
the selecting the target time-frequency position of the power calibration interval PCG according to the PA calibration information includes:
according to the PA calibration information, the target time-frequency position of the PCG is selected autonomously; or alternatively
Selecting a target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information;
the autonomously selecting the target time-frequency position of the PCG according to the PA calibration information includes:
and when the terminal is in any one of the following states, automatically selecting a target time-frequency position of the PCG according to the PA calibration information: state 1, state 2, and state 3; when in the state 1, the terminal does not send uplink data and does not send an over-dispatching request; when in state 2, the terminal sends an SR, but does not receive an uplink grant; when in the state 3, the terminal has uplink data to be transmitted, and the time difference between the time-frequency position of the uplink resource configured in the uplink authorization and the current time meets the requirement of PA calibration;
The selecting the target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information includes:
determining a PCG candidate time-frequency position set according to the PA calibration information, and determining a configured uplink resource time-frequency position according to the time-frequency resource configuration information;
and selecting a time-frequency position overlapped with the PCG candidate time-frequency position in the PCG candidate time-frequency position set from the configured uplink resource time-frequency positions as a target time-frequency position of the PCG.
2. The method of calibrating according to claim 1, wherein said receiving power amplifier PA calibration information from a network device comprises:
and receiving the PA calibration information sent by the network equipment through the Radio Resource Control (RRC) message.
3. The calibration method of claim 1, wherein the PA calibration information comprises at least one of:
the method comprises the steps of PCG period, PCG length, starting point of the current PCG period, PCG candidate time-frequency position set and single-shot scheduling parameters of a first type terminal;
wherein the PCG of the first type terminal is a rank restriction interval.
4. The calibration method according to claim 1, wherein selecting a target time-frequency position of a power calibration interval PCG according to the PA calibration information, and performing PA calibration at the target time-frequency position of the PCG, comprises:
And according to the PA calibration information, selecting the target time-frequency position of the PCG in each PCG period in sequence, and carrying out PA calibration on the target time-frequency position of the PCG.
5. The calibration method according to claim 1, wherein when there are a plurality of overlapping time-frequency locations between the configured uplink resource time-frequency locations and PCG candidate time-frequency locations in the PCG candidate time-frequency location set, the performing PA calibration at the target time-frequency location of the PCG includes:
and selecting a corresponding time-frequency position from the plurality of overlapped time-frequency positions according to preset conditions to perform PA calibration.
6. The calibration method according to claim 1, wherein when the target time-frequency position of the PCG is autonomously selected based on the PA calibration information, after PA calibration of the target time-frequency position of the PCG, the method further comprises:
and sending indication information for indicating that the PA calibration is completed to the network equipment.
7. The calibration method of claim 1, wherein after receiving PA calibration information from a network device, the method further comprises:
receiving, from the network device, indication information for indicating to stop PA calibration;
And stopping the PA calibration according to the indication information for indicating to stop the PA calibration.
8. The calibration method according to claim 7, wherein the instruction information for instructing to stop PA calibration is transmitted by the network device according to notification information for notifying to stop PA calibration received from the terminal; or the network device sends the PA calibration information when the network device does not receive the notification information for notifying to restart the PA calibration within the preset time after sending the PA calibration information.
9. A calibration method applied to a network device, comprising:
transmitting PA calibration information to a terminal, selecting a target time-frequency position of a PCG by the terminal according to the PA calibration information, and performing PA calibration on the target time-frequency position of the PCG;
the terminal selects a target time-frequency position of a power calibration interval PCG according to the PA calibration information, and includes:
according to the PA calibration information, the target time-frequency position of the PCG is selected autonomously; or alternatively
Selecting a target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information;
the autonomously selecting the target time-frequency position of the PCG according to the PA calibration information includes:
And when the terminal is in any one of the following states, automatically selecting a target time-frequency position of the PCG according to the PA calibration information: state 1, state 2, and state 3; when in the state 1, the terminal does not send uplink data and does not send an over-dispatching request; when in state 2, the terminal sends an SR, but does not receive an uplink grant; when in the state 3, the terminal has uplink data to be transmitted, and the time difference between the time-frequency position of the uplink resource configured in the uplink authorization and the current time meets the requirement of PA calibration;
the selecting the target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information includes:
determining a PCG candidate time-frequency position set according to the PA calibration information, and determining a configured uplink resource time-frequency position according to the time-frequency resource configuration information;
and selecting a time-frequency position overlapped with the PCG candidate time-frequency position in the PCG candidate time-frequency position set from the configured uplink resource time-frequency positions as a target time-frequency position of the PCG.
10. The calibration method according to claim 9, characterized in that the transmitting PA calibration information to the terminal comprises:
And sending the PA calibration information to the terminal through an RRC message.
11. The calibration method of claim 9, wherein the PA calibration information comprises at least one of:
the method comprises the steps of PCG period, PCG length, starting point of the current PCG period, PCG candidate time-frequency position set and single-shot scheduling parameters of a first type terminal;
wherein the PCG of the first type terminal is a rank restriction interval.
12. The calibration method of claim 9, wherein after the transmitting PA calibration information to the terminal, the method further comprises:
and when uplink data of the terminal are received, determining the transmission condition of the terminal according to the target time-frequency position of the PCG calibrated by the PA of the terminal and the transmission position of the uplink data.
13. The calibration method of claim 9, wherein after the transmitting PA calibration information to the terminal, the method further comprises:
and sending indication information for indicating to stop the PA calibration to the terminal.
14. The calibration method according to claim 13, wherein the instruction information for instructing to stop PA calibration is transmitted by the network device according to notification information for notifying to stop PA calibration received from the terminal; or the network device sends the PA calibration information when the network device does not receive the notification information for notifying to restart the PA calibration within the preset time after sending the PA calibration information.
15. A terminal comprising a receiver and a processor;
wherein the receiver is configured to: receiving PA calibration information from a network device;
the processor is configured to: selecting a target time-frequency position of a PCG according to the PA calibration information, and performing PA calibration on the target time-frequency position of the PCG;
the processor may be further configured to:
according to the PA calibration information, the target time-frequency position of the PCG is selected autonomously; or alternatively
Selecting a target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information;
the autonomously selecting the target time-frequency position of the PCG according to the PA calibration information includes:
and when the terminal is in any one of the following states, automatically selecting a target time-frequency position of the PCG according to the PA calibration information: state 1, state 2, and state 3; when in the state 1, the terminal does not send uplink data and does not send an over-dispatching request; when in state 2, the terminal sends an SR, but does not receive an uplink grant; when in the state 3, the terminal has uplink data to be transmitted, and the time difference between the time-frequency position of the uplink resource configured in the uplink authorization and the current time meets the requirement of PA calibration;
The selecting the target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information includes:
determining a PCG candidate time-frequency position set according to the PA calibration information, and determining a configured uplink resource time-frequency position according to the time-frequency resource configuration information;
and selecting a time-frequency position overlapped with the PCG candidate time-frequency position in the PCG candidate time-frequency position set from the configured uplink resource time-frequency positions as a target time-frequency position of the PCG.
16. A network device comprising a transmitter and a receiver;
wherein the transmitter is configured to: transmitting PA calibration information to a terminal, selecting a target time-frequency position of a PCG by the terminal according to the PA calibration information, and performing PA calibration on the target time-frequency position of the PCG;
the terminal selects a target time-frequency position of a power calibration interval PCG according to the PA calibration information, and includes:
according to the PA calibration information, the target time-frequency position of the PCG is selected autonomously; or alternatively
Selecting a target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information;
The autonomously selecting the target time-frequency position of the PCG according to the PA calibration information includes:
and when the terminal is in any one of the following states, automatically selecting a target time-frequency position of the PCG according to the PA calibration information: state 1, state 2, and state 3; when in the state 1, the terminal does not send uplink data and does not send an over-dispatching request; when in state 2, the terminal sends an SR, but does not receive an uplink grant; when in the state 3, the terminal has uplink data to be transmitted, and the time difference between the time-frequency position of the uplink resource configured in the uplink authorization and the current time meets the requirement of PA calibration;
the selecting the target time-frequency position of the PCG according to the PA calibration information and the received time-frequency resource configuration information includes:
determining a PCG candidate time-frequency position set according to the PA calibration information, and determining a configured uplink resource time-frequency position according to the time-frequency resource configuration information;
and selecting a time-frequency position overlapped with the PCG candidate time-frequency position in the PCG candidate time-frequency position set from the configured uplink resource time-frequency positions as a target time-frequency position of the PCG.
17. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program when executed by the processor implements the steps of the calibration method according to any one of claims 1 to 8 or the steps of the calibration method according to any one of claims 9 to 14.
18. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the calibration method according to any one of claims 1 to 8 or the steps of the calibration method according to any one of claims 9 to 14.
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CN115037318B (en) * 2021-03-08 2024-03-01 维沃移动通信有限公司 Nonlinear calibration method and device for PA
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