CN113453328B

CN113453328B - Power determination method and device

Info

Publication number: CN113453328B
Application number: CN202010224712.7A
Authority: CN
Inventors: 杨丽明; 王鹏
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2022-08-09
Anticipated expiration: 2040-03-26
Also published as: CN113453328A

Abstract

The invention provides a power determination method and a power determination device, which are used for ensuring that terminal equipment obtains accurate transmitting power of a base station so as to reduce the influence on uplink transmitting power. The method comprises the following steps: the access network equipment detects radio frequency channels in an Active Antenna Unit (AAU) of a first cell and determines the number of the radio frequency channels with faults in the AAU; the access network equipment updates the transmitting power of the first cell according to the number of the radio frequency channels, wherein the first cell belongs to the access network equipment; and the access network equipment sends the updated transmission power of the first cell to the terminal equipment, wherein the service cell of the terminal equipment is the first cell.

Description

Power determination method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power determination method and apparatus.

Background

An Active Antenna Unit (AAU) in a base station is composed of a Radio Remote Unit (RRU) and an active antenna. In the fifth Generation Mobile communication (5G) technology, a beam management concept is proposed, and the AUU is extended from the original 16 rf channels to 64 rf channels. The 5G has higher requirement on the communication performance of the radio frequency, and once a radio frequency channel fails, the influence on a user is larger.

Currently, the uplink transmission power of the terminal device is calculated based on the path loss, and the path loss is calculated according to the transmission power of the base station (or cell) (e.g. the transmission power of a Synchronization Signal Block (SSB)). If the radio frequency channel of the AAU of the base station fails, how to ensure that the terminal equipment obtains accurate transmitting power of the base station is ensured, so as to reduce the influence on the uplink transmitting power.

Disclosure of Invention

The invention provides a power determination method and a power determination device, which are used for ensuring that terminal equipment obtains accurate transmitting power of a base station so as to reduce the influence on uplink transmitting power.

In a first aspect, the present invention provides a power determining method, including:

the access network equipment detects radio frequency channels in an Active Antenna Unit (AAU) of a first cell and determines the number of the radio frequency channels with faults in the AAU;

the access network equipment updates the transmitting power of the first cell according to the number of the radio frequency channels, wherein the first cell belongs to the access network equipment;

and the access network equipment sends the updated transmission power of the first cell to the terminal equipment, wherein the service cell of the terminal equipment is the first cell.

For example, the transmission power of the first cell is the maximum transmission power of the synchronization block SSB of the first cell, or the maximum transmission power of each resource element RE of the SSB.

By the scheme, after the access network equipment judges that the radio frequency channel has the fault, the transmitting power of the SSB of the cell is updated again according to the number of the radio frequency channels, and the updated transmitting power of the SSB is timely notified to the terminal equipment, so that the terminal equipment can update the transmitting power of the cell configured last time by the access network equipment according to the received transmitting power of the SSB, calculate the path loss according to the updated transmitting power, further execute uplink power control, reduce the influence of received signals, and further reduce the resource waste of the access network equipment.

In a possible implementation, the detecting, by the access network device, the radio frequency channel in the AAU of the first cell, and determining the number of the radio frequency channels with failures in the AAU includes:

respectively monitoring the standing-wave ratios of N radio frequency channels included in an AAU of a first cell, determining the number of the radio frequency channels with faults in the AAU to be M according to the standing-wave ratios of the N radio frequency channels, wherein the standing-wave ratios of the M radio frequency channels are out of a set range and the faults of the M radio frequency channels are not recoverable, and M is a positive integer less than or equal to N and greater than or equal to 1.

Through the design, whether the radio frequency channel is abnormal or not is judged through the standing wave ratio of the radio frequency channel, and the radio frequency channel fault is judged only when the condition that the fault of the radio frequency channel is not recoverable is determined, so that the accuracy of determining the number of the radio frequency channel faults is improved.

Optionally, if it is determined that there is an abnormality in the radio frequency channel, a repair procedure may be performed, and if the radio frequency channel cannot be recovered to normal, the radio frequency channel is determined to be faulty. Of course, if the repair procedure is performed and then the radio frequency channel is recovered to normal, the radio frequency channel is normal.

In a possible implementation manner, the access network device monitors standing-wave ratios of N radio frequency channels included in the AAU of the first cell respectively, and includes:

after the access network equipment determines that the AAU is powered on and when the antenna calibration of the AAU is passed, the access network equipment respectively monitors the standing-wave ratios of N radio frequency channels included in the AAU of the first cell; alternatively, the first and second electrodes may be,

and after the antenna calibration switch of the AAU is closed, performing the monitoring of the standing-wave ratios of the N radio frequency channels included in the AAU of the first cell respectively.

In one possible embodiment, the method further comprises:

and the access network equipment closes the radio frequency channel with the fault in the AAU.

In a possible implementation, the sending, by the access network device, the updated transmission power of the first cell to the terminal device includes:

and the access network equipment sends a reconfiguration message to the terminal equipment, wherein the reconfiguration message carries the updated transmission power of the first cell.

In a second aspect, an embodiment of the present invention provides a power determining apparatus, including an operation maintenance module and a radio resource control module;

the operation maintenance module is used for detecting radio frequency channels in an Active Antenna Unit (AAU) of a first cell and determining the number of the radio frequency channels with faults in the AAU;

the radio resource control module is configured to determine the transmission power of the first cell according to the number of the radio frequency channels, where the first cell belongs to the access network device;

the radio resource control module is further configured to send the transmission power of the first cell to a terminal device, where a serving cell of the terminal device is the first cell.

In a possible implementation, the transmission power of the first cell is the maximum transmission power of the synchronization block SSB of the first cell, or the maximum transmission power of each resource element RE of the SSB.

In a possible implementation manner, the operation and maintenance module is specifically configured to:

respectively monitoring the standing-wave ratios of N radio frequency channels included in an AAU of a first cell, determining the number of the radio frequency channels with faults in the AAU to be M according to the standing-wave ratios of the N radio frequency channels, wherein the standing-wave ratios of the M radio frequency channels do not exist and the faults of the M radio frequency channels cannot be recovered, and M is a positive integer which is less than or equal to N and greater than or equal to 1.

In a possible embodiment, the operation and maintenance module is specifically configured to perform, after determining that the AAU is powered on and when performing antenna calibration of the AAU, monitoring standing-wave ratios of N radio frequency channels included in the AAU of the first cell respectively; alternatively, the first and second electrodes may be,

In a possible implementation manner, the operation and maintenance module is further configured to close a radio frequency channel in which a failure exists in the AAU.

In a possible implementation manner, the radio resource control module is further configured to send a reconfiguration message to the terminal device, where the reconfiguration message carries the updated transmission power of the first cell.

In a third aspect, an embodiment of the present invention provides a power determining apparatus, which may be applied to an access network device, for example, one or more chips or one or functional modules of the access network device, where the apparatus includes a memory and a processor;

a memory for storing program instructions;

and the processor is used for calling the program instructions stored in the memory and executing the method of any implementation mode of the first aspect according to the obtained program.

In a fourth aspect, an embodiment of the present invention provides a readable storage medium, which stores instructions that, when executed on a hardware device, cause the hardware device to perform the above method.

Drawings

Fig. 1A is a schematic structural diagram of a communication system according to an embodiment of the present invention;

fig. 1B is a schematic structural diagram of a communication system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an antenna calibration process according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a channel fault processing flow according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of a power determination method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a power determining apparatus according to an embodiment of the present invention;

fig. 6 is a schematic flow chart of another power determining method according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another power determining apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The application scenario described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems. In the description of the present invention, the term "plurality" means two or more unless otherwise specified.

Fig. 1A illustrates a communication system architecture, it should be understood that the embodiments of the present invention are not limited to the system shown in fig. 1A, and moreover, the apparatus in fig. 1A may be hardware, or may be functionally divided software, or a combination of the above two. As shown in fig. 1A, a system architecture provided in the embodiment of the present invention includes a terminal device and an access network device. The embodiment of the invention does not limit the number of the terminal equipment and the access network equipment included in the system.

A Terminal device (UE), also called a Terminal device, a Terminal, a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a User, for example, a handheld device, a vehicle-mounted device, etc. with a wireless connection function. Currently, some examples of terminals are: a Mobile phone (Mobile phone), a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device, a Virtual Reality (VR) Device, an Augmented Reality (AR) Device, a wireless terminal in Industrial Control (Industrial Control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like.

The Access network device related in the embodiment of the present invention may also be referred to as a base station or AN Access Node (Access Node, abbreviated as AN) to provide a wireless Access service for the terminal device. The access network device may be specifically an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a base station device (gNB) in a 5G network, which is not limited in the present invention.

Currently, a 5G system supports configuration and management of beams, and as shown in fig. 1B, taking an access network device as a gNB as an example, in a process of an AAU accessing the access network device, the gNB may perform antenna calibration on the AAU, so as to ensure that each channel in the AAU configures a corresponding beamforming parameter. The shaping parameters may include one or more of horizontal plane beamwidth, electrical downtilt angle, vertical plane beamwidth, or gain. Currently, the AUU extends from the original 16 rf channels to 64 rf channels. However, the AAU may include more rf channels in the future, and therefore, the number of the rf channels is not particularly limited in the embodiments of the present application.

Referring to fig. 2, a schematic diagram of a possible initial antenna calibration process is shown.

After the AAU is powered on, the access network equipment starts the initial antenna calibration process. S201 is performed.

S201, calibration of 64 rf channels (corresponding to 64 antennas) is performed. When the verification passes, S202 is executed. If the verification fails, S203 is executed. The check pass means that 64 radio frequency channels are all available. The verification fails, namely that part of 64 radio frequency channels is available and the other part is unavailable.

S202, the creation of the cell is completed.

S203, judging whether the checking times reach a time threshold value. For example, the number threshold is 5, if the number threshold is reached, S204 is executed, and if the number threshold is not reached, S201 is executed.

And S204, degrading and creating the cell. Creating a cell with degraded performance refers to a reduction in performance such as call quality, cell handover, congestion, or capacity of the cell.

After the AAU is powered on, the access network device also performs delay measurement and initial channel calibration on 64 channels of the AAU, so that the phase amplitude of each channel conforms to the antenna weight configured by the access network device. The access network device may calibrate the phase magnitudes of the individual channels according to the antenna parameter table. The antenna parameter table is configured when the AAU is shipped. In the initial antenna calibration stage, if it is determined that one or more channels are abnormal during channel calibration, for example, the standing-wave ratio exceeds the standing-wave ratio threshold, the transmission of the cell signal is turned off, so that the cell cannot perform the transmission of the radio frequency signal, and the terminal device cannot complete registration.

In the antenna calibration method shown in fig. 2, after the AAU radio frequency channel fails, it cannot be ensured that the terminal device obtains accurate transmission power of the base station, so as to reduce the influence on the uplink transmission power.

It should be noted that, in general, the terminal device determines the uplink transmit power according to the path loss. And the path loss is determined by the transmit power of the cell. In the antenna calibration method shown in fig. 2, after the AAU radio frequency channel fails, the terminal device cannot acquire accurate transmission power of the base station, which results in a deviation between the determined uplink transmission power and the actual uplink transmission power.

The transmit power of the cell may be the transmit power of the SSB of the cell. The SSB includes a Primary Synchronized Signal (PSS), a Secondary Synchronized Signal (SSS), and a Physical Broadcast CHannel (PBCH).

Fig. 3 is a schematic diagram illustrating a processing flow of a channel fault when the antenna calibration switch is in the off state. After the initial antenna calibration is completed, the switch for antenna calibration is typically turned off.

S301, it is determined that the antenna calibration switch is in a closed state, that is, the access network device is calibrated and closed.

S302, determining whether the radio frequency channel in the AAU is abnormal under the condition that the cell has been created and activated, if not, ending the process, and if so, executing S303.

Illustratively, the access network device accesses the AAU, and in the case that the AAU is transmitting normally, and the baseband resource and clock are available, a cell may be created, and the created cell may be used normally after activation.

And determining that the radio frequency channel in the AAU has an abnormality, such as an abnormality like a standing-wave ratio alarm.

S303, the access network equipment closes the radio frequency channel with the fault. S304 is performed.

And S304, reporting an alarm. The access network equipment ignores the radio frequency channel with the fault and does not use the radio frequency channel.

In the manner shown in fig. 3, after the failure of the AAU radio frequency channel, the terminal device may also not obtain accurate transmission power of the base station, which may cause a deviation between the determined uplink transmission power and the actual uplink transmission power.

The transmit power of the cell used to determine the uplink transmit power of the terminal device may be sent by the access network device to the terminal device. For example, the access network device may notify the transmission power of the cell (e.g., the transmission power of the SSB) to the terminal device by default through the reconfiguration message. For example, the SS-PBCH-BLOCK-power configuration notification is carried in the reconfiguration message to the terminal device. The SS-PBCH-BLOCK-POWER configuration includes the maximum transmit power of the SSB. And the terminal calculates the uplink loss based on the maximum transmitting power of the SSB carried in the received reconfiguration message.

It can be seen from the above scheme that after determining that the radio frequency channel of the AAU has a fault, the access network device cannot notify the RRC layer to modify the transmit power of the SSB in time, and then the terminal device calculates the path loss according to the transmit power of the SSB originally configured by the access network device.

Based on this, embodiments of the present invention provide a power determining method and apparatus, after determining a radio frequency channel failure of an AAU through an access network device, determine a transmission power value of an SSB according to the number of the failed radio frequency channels, and then send the re-determined transmission power of the SSB to a terminal device, so that the terminal device calculates a path loss from the received transmission power of the SSB, and further determines an uplink transmission power, thereby avoiding a problem that the calculated path loss of the terminal is incorrect due to the channel failure.

Referring to fig. 4, a schematic flow chart of a power determination method according to an embodiment of the present invention is shown.

S401, the access network device detects the radio frequency channels in the AAU of the first cell, and determines the number of the radio frequency channels with faults in the AAU. The first cell belongs to the access network equipment.

Illustratively, the transmission power of the first cell may be a maximum transmission power of a synchronization block SSB of the first cell, or a maximum transmission power of each Resource Element (RE) of the SSB.

S402, the access network equipment updates the transmitting power of the first cell according to the number of the radio frequency channels.

Optionally, the access network device may send the terminal device with the transmission power of the first cell carried in the reconfiguration message.

Illustratively, the maximum transmit power TXPmax on each RE of the SSB, determined according to the number of failed lanes, may be determined as follows:

TXPmax-Tmax-10 lgNa +10 lgMre. Wherein Tmax represents the maximum transmission power of the SSB when the channels of the AAU are all normal. Na indicates the normal number of channels. Mre represents the number of REs included in three symbols of the SSB other than the first symbol.

Exemplarily, the maximum transmission power TXPre of the SSB is determined according to the number of channels with faults, max may be determined as follows:

TXPre,max＝Tmax-10lgNa。

for example, the first symbol according to the SSB includes 127 Resource Element (RE) calculations, and the remaining 3 symbols can calculate power according to 240 REs.

When 64 radio frequency channels are all normal, the maximum transmit power of the SSB is set to 18dBm, and the maximum transmit power on each RE of the SSB is equal to 18-10lg64+10lg 240-23.8 dBm.

When 64 radio frequency channels are all normal, the transmitting power of the SSB is set to 18dBm, and when 1 radio frequency channel is normal, the maximum transmitting power on each RE of the SSB is equal to 18-10lg1+10lg 240-41.8 dBm.

S403, the access network device sends the updated transmission power of the first cell to a terminal device, and a serving cell of the terminal device is the first cell. Therefore, after the terminal equipment receives the transmitting power of the first cell, the path calculation is calculated according to the transmitting power of the first cell.

The transmission power of the first cell is the maximum transmission power of each RE of the SSB, and the transmission power may be indicated as the transmission power of each RE when the maximum transmission power of each RE of the SSB is transmitted to the terminal device. When the transmission power of the first cell is the maximum transmission power of the SSB, it may also be indicated that the transmission power is the maximum transmission power of the SSB when the maximum transmission power of the SSB is sent to the terminal device, and is not the transmission power of each RE. Of course, the maximum transmission power for transmitting the SSB may not be specified, and the terminal device defaults to the maximum transmission power of the SSB.

At present, when only one radio frequency Channel is available, the transmission power on each RE on the SSB is equal to 41.8dBm, that is, the transmission power of the SSB transmitted by the access network device, the transmission power of the SSB received by the terminal device, that is, the received Signal strength, and the path loss calculation may also be determined according to the transmission power of a Channel-state information Reference Signal (CSI-RS). That is, the transmission power of the cell notified to the terminal device by the access network device may be the transmission power of the SSB or the transmission power of the CSI-RS.

When the existing access network equipment determines that the radio frequency channel of the AAU fails, the existing access network equipment notifies the terminal equipment of the updated SSB transmitting power on the access network equipment in time, and then the terminal equipment calculates the path loss according to the SSB transmitting power originally configured by the access network equipment when calculating the path loss, namely the terminal equipment calculates the path loss according to the total power of the previous 64 channels, which causes the path loss to be calculated slightly and influences the uplink power control. And the downlink power of the access network equipment also has the condition of resource waste. By the scheme, after the access network equipment judges that the radio frequency channels have faults, the transmitting power of the SSBs of the cell is re-determined according to the number of the radio frequency channels, and the re-determined transmitting power of the SSBs is timely notified to the terminal equipment, so that the terminal equipment can calculate the path loss according to the received transmitting power of the SSBs, further execute uplink power control, reduce the influence of received signals, and further reduce the resource waste of the access network equipment.

Optionally, the access network device detects radio frequency channels in the AAU of the first cell, and when determining the number of radio frequency channels with failures in the AAU, the access network device may determine in the following manner:

For example, when the standing-wave ratio is between [1-3.0], it indicates that the rf channel is normal, and if it is greater than 3.0, it can be considered that the rf channel has a fault. For another example, when the standing-wave ratio is within the range of [1.3-1.5], it indicates that the radio frequency channel is normal, and when the standing-wave ratio is outside the range of [1.3-1.5], there is a fault in the radio frequency channel. As an example, the normal standing wave ratio range may be set according to actual needs.

As an example, the access network device may trigger monitoring of the standing-wave ratios of the N radio frequency channels included in the AAU of the first cell when any of the following conditions is reached:

in a possible case, after the AAU is powered on, an antenna calibration procedure of the first cell is triggered, and when the calibration is successful, the standing-wave ratios of N radio frequency channels included in the AAU of the first cell are triggered and monitored. An antenna calibration procedure for the first cell is triggered, i.e. in this case the first cell needs to be created.

Optionally, if the K times of average calibration performed on the antenna calibration of the first cell fails, the radio frequency channel of the AAU may be closed. And closing the radio frequency channel of the AAU, and performing quality degradation processing on the cell. The access network device may issue an alert notification indicating that the first cell is unavailable.

Another possible scenario is that the first cell is successfully created, the antenna calibration switch of the cell has been turned off, and monitoring of the standing-wave ratios of the N radio frequency channels included in the AAU of the first cell may be triggered.

In the embodiment of the present invention, by monitoring the standing-wave ratio of the radio frequency channel of the AAU, when the channel is abnormal, the access network device performs fault type determination, such as a standing-wave ratio alarm, an RRU power detection abnormality, and the like, and the access network device triggers a corresponding recovery procedure (such as power adjustment or soft reset) for the fault type of the AAU, and if the radio frequency channel fault is solved, the first cell is available.

Optionally, the access network device detects a radio frequency channel in the AAU of the first cell, and when determining that the faulty radio frequency channel exists in the AAU, closes the faulty radio frequency channel in the AAU. But refrains from turning off the cell's transmitted signal. And determining the radio frequency channel with the fault in the AAU, and reporting the radio frequency channel fault. Antenna weight information reconstruction may also be performed, such as the access network device modifying antenna weights via smart antenna techniques.

Based on the same inventive concept as the above method, as described with reference to fig. 5, an embodiment of the present invention further provides a power determining apparatus, which may include an Operation Maintenance (OM) module and a radio resource control module. A Radio Resource Control (RRC) module may be implemented by an RRC layer entity.

the radio resource control module is configured to update the transmission power of the first cell according to the number of the radio frequency channels, where the first cell belongs to the access network device;

the radio resource control module is further configured to send the updated transmission power of the first cell to a terminal device, where a serving cell of the terminal device is the first cell.

In a possible embodiment, the operation and maintenance module is specifically configured to perform, after determining that the AAU is powered on and when performing antenna calibration of the AAU, monitoring standing-wave ratios of N radio frequency channels included in the AAU of the first cell respectively; or after the antenna calibration switch of the AAU is turned off, performing standing wave ratio monitoring on the N radio frequency channels included in the AAU of the first cell.

In a possible implementation manner, the radio resource control module is further configured to send a reconfiguration message to the terminal device, where the reconfiguration message carries the transmission power of the first cell.

The following describes embodiments of the present invention in detail with reference to the drawings. Fig. 6 is a schematic flow chart of a possible power determination method, which is applied in an antenna calibration process.

And S601, electrifying the AAU to access the access network equipment.

S602, the OM module determines a switch state of the antenna calibration of the first cell, and if the switch state is an on state, performs S603, and if the switch state is an off state, performs S607.

And S603, the OM module executes the antenna calibration of the initial access of the AAU.

And S604, judging whether the antenna calibration passes by the OM module, if not, executing S605, and if so, executing S607.

And S605, judging whether the number of times of the antenna calibration of the initial access reaches a number threshold by the OM module, if so, executing S606, and if not, executing S603.

And S606, the OM module closes the radio frequency channel of the AAU, executes the quality degradation processing to the first cell and reports an alarm. In this case, the first cell is not available.

And reporting the alarm, wherein the alarm can be an alarm notification sent to the management equipment.

S607, the OM module monitors the standing-wave ratio of each radio frequency channel in the AAU. In this embodiment, the AAU includes N rf channels as an example.

S608, the OM module determines, for N radio frequency channels in the AAU: and whether a standing wave ratio fault exists. If not, the first cell is determined to be available. If yes, go to S609.

And S609, the OM module judges whether the radio frequency channel with the standing-wave ratio fault can be repaired, if so, S610 is executed, and if not, S611 is executed.

It should be understood that if a repair procedure has been performed for a certain rf channel, but is not repaired, it may be determined that the rf channel is not repairable. Or, the number of times that a certain radio frequency channel has been subjected to the repair procedure reaches a predetermined threshold, but the radio frequency channel is not repaired well, and it may be determined that the radio frequency channel is not repairable.

For example, whether the standing-wave ratio failed radio frequency channel can be repaired can be judged according to the fault type of the standing-wave ratio failed radio frequency channel.

And S610, the OM module executes an abnormal repairing process on the radio frequency channel with the standing-wave ratio fault, continues to execute S608 after repairing, and judges whether the repaired radio frequency channel has the standing-wave ratio fault.

For example, for a radio frequency channel with standing wave ratio failure, a soft reset may be performed to repair, for example.

For another example, for a Radio frequency channel with a standing-wave ratio fault, a spectrometer may be used to test the output power of each node in the Radio frequency channel, determine whether there is a power abnormality at an output port of a Remote Radio Unit (RRU), and if so, may adjust the power.

S611, the OM module sends an exception notification to the RRC layer entity, where the exception notification is used to indicate that there is a failed radio frequency channel.

And S612, after receiving the abnormal notification, the RRC layer entity recalculates the transmitting power of the SSB according to the number of the radio frequency channels with faults. At this time, the first cell is available.

S613, the RRC layer entity triggers a reconfiguration message to the terminal equipment, wherein the reconfiguration message carries the calculated transmitting power of the SSB.

At present, after some fault channels of the AAU are closed, the terminal cannot update the transmission power of the cell SSB in time. By the scheme provided by the embodiment of the invention, after some fault channels of the AAU are closed, the transmitting power of the SSB configured by the terminal through the signaling needs to be updated in time, so that the understanding of the terminal side and the base station side to the uplink and downlink path loss is consistent. The influence on the uplink power control is reduced. In 5G or future networking, there will be a large number of users performing various new services, and the performance requirements for the AAU are increasing. The scheme provided by the embodiment of the invention can strengthen the perception of the access network equipment to the state of the radio frequency channel, and OM can carry out fault post-processing when some channels of the AAU have abnormal states. And further, the network performance is improved to the maximum extent, so that the user experience achieves the best effect.

Based on the same inventive concept as the above embodiment, an embodiment of the present invention further provides another power determining apparatus, which is shown in fig. 7 and is applied to an access network device, and may be one or a chip of the access network device or a functional module of the access network device. The device includes:

a communication interface 701, a memory 702, and a processor 703;

wherein, the access network device communicates with a terminal device through the communication interface 701, such as receiving data; a memory 702 for storing program instructions; the processor 703 is configured to invoke the program instructions stored in the memory 702, and execute the method executed by the access network device in the foregoing embodiment according to the obtained program.

In the embodiment of the present invention, the specific connection medium among the communication interface 701, the memory 702, and the processor 703 is not limited, for example, a bus, and the bus may be divided into an address bus, a data bus, a control bus, and the like.

In the embodiments of the present invention, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor.

In the embodiment of the present invention, the memory may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory, for example, a random-access memory (RAM). The memory can also be, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory in embodiments of the present invention may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.

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

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

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

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

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of power determination, comprising:

2. The method of claim 1, wherein the transmit power of the first cell is a maximum transmit power of a synchronization block, SSB, of the first cell or a maximum transmit power of each resource element, RE, of the SSB.

3. The method of claim 1 or 2, wherein the detecting, by the access network device, the radio frequency channels in the AAU of the first cell, and determining the number of failed radio frequency channels in the AAU, comprises:

4. The method of claim 3, wherein the access network device monitors the standing-wave ratios of the N radio frequency channels included in the AAU of the first cell, respectively, and comprises:

5. The method of claim 1 or 2, further comprising:

6. The method of claim 1 or 2, wherein the access network device sending the updated transmit power of the first cell to a terminal device, comprising:

7. A power determination device comprising an operation maintenance module and a radio resource control module;

the radio resource control module is configured to update the transmission power of the first cell according to the number of the radio frequency channels, where the first cell belongs to an access network device;

8. The apparatus of claim 7, wherein the transmit power of the first cell is a maximum transmit power of a synchronization block, SSB, of the first cell or a maximum transmit power of each resource element, RE, of the SSB.

9. The apparatus according to claim 7 or 8, wherein the operation and maintenance module is specifically configured to:

10. The apparatus according to claim 9, wherein the operation and maintenance module is specifically configured to perform the standing wave ratios of the N radio frequency channels included in the AAU of the first cell, respectively, when it is determined that the AAU is powered on and antenna calibration of the AAU is performed; alternatively, the first and second electrodes may be,

11. The apparatus of claim 7 or 8, wherein the operation and maintenance module is further configured to shut down a radio frequency channel having a failure in the AAU.

12. The apparatus of claim 7 or 8, wherein the radio resource control module is further configured to send a reconfiguration message to a terminal device, and the reconfiguration message carries the updated transmission power of the first cell.

13. A power determination apparatus, comprising:

a memory and a processor;

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing the method of any one of claims 1 to 6 according to the obtained program.

14. A readable storage medium having stored thereon instructions that, when executed on a hardware device, cause the hardware device to perform the method of any of claims 1-6.