CN116963252A - Gain control method, device, communication equipment and storage medium - Google Patents
Gain control method, device, communication equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
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Abstract
The invention discloses a gain control method, a gain control device and a storage medium; the method comprises the following steps: determining a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device; determining a first target gain according to the first received power and the first path loss; and sending the first target benefit to the second network device.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a gain control method, apparatus, communication device, and storage medium.
Background
In order to increase network coverage, especially network coverage under millimeter waves, different network nodes are usually deployed in view of flexibility and economy, and in view of network coverage problems of high frequency bands such as millimeter waves, the repeater will be more widely applied in the future.
The gain control in the related art may add interference to the network, causing degradation of network performance, which may cause the network performance to be affected; in addition, many methods to improve network performance are difficult to implement at the repeater.
Disclosure of Invention
In view of the above, a main object of the present invention is to provide a gain control method, apparatus, communication device and storage medium.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a gain control method applied to first network equipment, which comprises the following steps:
determining a first received power and a first path loss; the first received power characterizes an upper bound of single Physical Resource Block (PRB) grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device;
determining a first target gain according to the first received power and the first path loss;
and sending the first target benefit to the second network device.
In the above solution, the determining the first target gain according to the first received power and the first path loss includes:
determining a sum of the first received power and the first path loss;
determining a difference between a sum of the first received power and the first path loss and a second received power as the first target gain; the second received power characterizes a typical value of single PRB received power of the terminal at the second network device.
In the above solution, the determining the first received power and the first path loss includes:
receiving a first received power configured and transmitted by an operation and maintenance management (OAM) device;
and receiving first signal intensity information sent by the second network equipment, and determining first path loss according to the first signal intensity information.
In the above scheme, the method further comprises:
receiving second signal strength information, and determining a second path loss according to the second signal strength information; the second path loss characterizing a path loss between a terminal and the second network device; the second signal intensity information is sent by the terminal and then sent to the first network equipment through the second network equipment;
updating the current gain of the second target device according to the second path loss;
if the updated gain is smaller than or equal to the first target gain, the updated gain is used as a second target gain to be sent to the second network equipment; if the updated gain is greater than the first target gain, the first target gain is used as the second target gain to be sent to the second network equipment; the second network device employs the second target gain.
In the above solution, the determining the second path loss according to the second signal strength information includes:
determining single PRB transmitting power of the terminal when the terminal transmits the second signal strength information;
measuring single PRB receiving power when the first network equipment receives the second signal strength information;
determining the current gain and the first path loss of the second network device;
and determining a second path loss according to the single PRB transmitting power of the terminal when the terminal transmits the second signal intensity information, the single PRB receiving power when the first network device receives the second signal intensity information, the gain of the second network device and the first path loss.
In the above scheme, the first network device is a base station, and/or the second network device is a repeater.
The embodiment of the invention provides a gain control method which is applied to second network equipment; the method comprises the following steps:
receiving a first target gain sent by first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the second network device and the first network device.
In the above scheme, the method further comprises:
sending second signal intensity information reported by the terminal to the first network equipment;
receiving a second target gain sent by the first network device; the second target gain is determined by the first network device according to a second path loss and a current gain of the second target device; the second path loss characterizes a path loss between a terminal and the second network device.
In the above scheme, the method further comprises: the first signal strength information is transmitted to a first network device.
In the above scheme, the first network device is a base station, and/or the second network device is a repeater.
The embodiment of the invention provides a gain control method which is applied to OAM equipment; the method comprises the following steps:
transmitting a first received power to a first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is used for determining a first target gain according to the first receiving power and the first path loss and transmitting the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device.
In the above scheme, the first network device is a base station, and/or the second network device is a repeater.
The embodiment of the invention provides a gain control device, which is applied to first network equipment and comprises: the first processing module and the first communication module; wherein,,
the first processing module is used for determining a first receiving power and a first path loss; determining a first target gain according to the first received power and the first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device;
the first communication module is configured to send the first target benefit to the second network device.
In the above solution, the first processing module is specifically configured to determine a sum of the first received power and the first path loss;
determining a difference between a sum of the first received power and the first path loss and a second received power as the first target gain; the second received power characterizes a typical value of single PRB received power of the terminal at the second network device.
In the above solution, the first communication module is specifically configured to receive a first received power configured and sent by an OAM device;
the first communication module is specifically configured to receive first signal strength information sent by the second network device; the first processing module is specifically configured to determine a first path loss according to the first signal strength information.
In the above scheme, the first communication module is further configured to receive second signal strength information;
the first processing module is further configured to determine a second path loss according to the second signal strength information; the second path loss characterizing a path loss between a terminal and the second network device; the second signal intensity information is sent by the terminal and then sent to the first network equipment through the second network equipment;
updating the current gain of the second target device according to the second path loss;
if the updated gain is smaller than or equal to the first target gain, the updated gain is used as a second target gain to be sent to the second network equipment; if the updated gain is greater than the first target gain, the first target gain is used as the second target gain to be sent to the second network equipment; the second network device employs the second target gain.
In the above scheme, the first processing module is configured to determine a single PRB transmit power of the terminal when the terminal sends the second signal strength information;
measuring single PRB receiving power when the first network equipment receives the second signal strength information;
determining the current gain and the first path loss of the second network device;
and determining a second path loss according to the single PRB transmitting power of the terminal when the terminal transmits the second signal intensity information, the single PRB receiving power when the first network device receives the second signal intensity information, the gain of the second network device and the first path loss.
In the above scheme, the first network device is a base station, and/or the second network device is a repeater.
The embodiment of the invention provides a gain control device, which is applied to second network equipment and comprises: a second communication module;
the second communication module is used for receiving a first target gain sent by the first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper receive power limit of a single PRB of the first network device; the first path loss is a path loss between the second network device and the first network device.
In the above scheme, the second communication module is further configured to send second signal strength information reported by the terminal to the first network device;
receiving a second target gain sent by the first network device; the second target gain is determined by the first network device according to a second path loss and a current gain of the second target device; the second path loss characterizes a path loss between a terminal and the second network device.
In the above scheme, the second communication module is further configured to send the first signal strength information to the first network device.
In the above scheme, the first network device is a base station, and/or the second network device is a repeater.
The embodiment of the invention provides a gain control device, which is applied to OAM equipment and comprises: a third communication module;
the third communication module is configured to send a first receiving power to the first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is configured to determine a first target gain according to the first received power and the first path loss, and send the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device.
In the above scheme, the first network device is a base station, and/or the second network device is a repeater.
The embodiment of the invention also provides a communication device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, and is characterized in that the processor executes the program to realize the steps of any method executed by the first network device side; or,
the processor, when executing the program, implements any one of the steps of the method executed by the second network device side; or,
the processor, when executing the program, implements the steps of any one of the methods performed by the OAM device side.
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 implements the steps of any one of the methods performed by the first network device side; or,
the computer program, when executed by a processor, implements the steps of any of the methods performed by the second network device side; or,
the computer program, when executed by a processor, implements the steps of any of the methods performed by the OAM device side.
The embodiment of the invention provides a gain control method, a device, communication equipment and a storage medium, wherein the method comprises the following steps: the first network device determining a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device; determining a first target gain according to the first received power and the first path loss; and sending the first target benefit to the second network device. Correspondingly, the second network device receives the first target gain sent by the first network device. In this way, the gain of the second network device is controlled in an auxiliary manner by the first network device side, and the maximum gain of the second network device is determined according to the maximum permitted receiving power (namely, the upper limit of the permitted receiving power of the single PRB of the first network device) and the path loss between the first network device and the second network device, so that the gain of the second network device is controlled and regulated.
Drawings
Fig. 1 is a schematic flow chart of a gain control method according to an embodiment of the present invention;
Fig. 2 is a flow chart of another gain control method according to an embodiment of the present invention;
fig. 3 is a flow chart of another gain control method according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of an automatic gain control method of an intelligent repeater according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of another automatic gain control method of an intelligent repeater according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a communication system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a gain control apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another gain control apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another gain control apparatus according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
In the related art, the repeater generally performs the amplifying and forwarding operations simply with a fixed gain, which is generally the optimal gain of the repeater or is manually adjusted by network optimization personnel according to the network condition, but neither can perform the adaptive operation on the change of the wireless link nor can perform the gain adjustment according to the current network environment. A fixed gain repeater may add interference to the network, causing degradation in network performance, which may result in network performance being impacted; in addition, many methods to improve network performance are difficult to implement at the repeater.
In view of the foregoing, embodiments of the present invention provide a gain control method, apparatus, communication device, and storage medium. The present invention will be described in further detail with reference to examples.
Fig. 1 is a schematic flow chart of a gain control method according to an embodiment of the present invention; as shown in fig. 1, the method may be applied to a first network device; the method comprises the following steps:
step 101, determining a first received power and a first path loss; the first received power characterizes an upper received power limit of a single physical resource block (PRB, physical Resource Block) of the first network device; the first path loss is a path loss between the first network device and a second network device;
102, determining a first target gain according to the first received power and the first path loss; the first target gain is an upper limit of a permitted gain of the second network device;
step 103, sending the first target benefit to the second network device.
The first network device may be a base station; the second network device is an intelligent repeater (repeater for short), and the repeater is a wireless signal relay device, which can be used as an intermediate device when the base station communicates with the terminal. Such as mobile phones, smart phones, notebook computers, digital broadcast receivers, personal Digital Assistants (PDAs), tablet computers (PADs), portable Multimedia Players (PMPs), wearable devices (such as smart bracelets, smart watches, etc.), navigation devices, etc.
In practical application, the effect of the single PRB receiving power of the terminal at the repeater on the gain is considered, so that the single PRB receiving power of the terminal at the repeater can be filtered to improve the gain precision.
Based on this, in some embodiments, the determining a first target gain from the first received power and the first path loss includes:
determining a sum of the first received power and the first path loss;
determining a difference between a sum of the first received power and the first path loss and a second received power as the first target gain;
wherein the second received power characterizes a typical value of single PRB received power for the terminal at the second network device.
In particular, since the second network device, i.e. the repeater, has part of the terminal capabilities, the repeater may also transmit signal strength information. When the repeater transmits signal strength information, the base station calculates a first target gain (i.e., maximum grant gain G max ) Specifically, the first received power (P est,max ) With first path loss (i.e. between base station and repeaterPath loss PL 1 ) And filtering out the second received power (i.e. the typical value P of the single PRB received power of the terminal at the repeater) typ，ue ). The calculation can be specifically performed according to the following formula: g max ＝P est,max +PL 1 -P typ,ue ；
Wherein G is max The first target gain is specifically referred to as the upper limit of the permitted gain of the repeater, namely the maximum permitted gain of the repeater;
P est,max for the first received power, specifically, the upper limit of the single PRB grant received power on the first network device (i.e., base station) side, i.e., the maximum grant received power or the maximum expected received power; the network manager can configure specific values according to actual conditions, and P is the same during configuration est,max The upper limit of the value of (2) is the maximum single PRB receiving power which can be correctly decoded by the base station under the highest modulation order of the uplink of the terminal, and P est,max The lower limit of the value of (2) is the maximum value of the expected received power of a single PRB of the base station.
P typ,ue For the second received power, it refers specifically to a typical value of the single PRB received power of the terminal at the repeater. P (P) typ,ue The maximum value of the single PRB expected receiving power of the base station can be obtained based on simulation under different scenes, can be selected by OAM configuration or the base station according to specific use scenes, and can be directly used. For example, in a user-dense scenario, to solve a large unit flow, avoid user interference, then P typ，ue The value can be smaller; in a sparse user scenario, to solve the problem of edge user coverage, P typ，ue The value can be larger.
The first target gain obtained through calculation can be used as the initial gain of the repeater, and the first target gain has the meaning that the repeater has a relatively rough but proper initial gain, so that the process of adjusting the gain to the gain corresponding to the most proper terminal equipment can be accelerated while the overlarge gain is avoided.
In some embodiments, determining the first received power includes:
and receiving the first receiving power configured and sent by the OAM equipment.
In some embodiments, determining the first path loss comprises:
receiving first signal strength information sent by the second network equipment;
measuring a received power of the first network device when receiving the first signal strength information;
and determining the first path loss according to the transmitting power of the second network equipment for transmitting the first signal strength information and the receiving power of the first network equipment for receiving the first signal strength information.
The first signal strength information includes: power headroom report (PHR, power Headroom Report), reference signal received power (RSRP, reference Signal Receiving Power), etc.
Here, the first path loss may be detected in advance, the second network device sends a reference signal to the first network device in advance, the first network device measures the receiving power of the reference signal, and the first path loss is obtained by combining the sending power of the first signal strength information sent by the second network device known in advance.
In some embodiments, the sending the first target benefit to the second network device comprises:
sending the first target benefit to the second network device through related signaling;
the related signaling may be signaling adopted between the current base station and the repeater, or may be signaling for designing a transmission gain, which is not limited herein.
In practical application, a method for fine adjustment of the gain of the repeater can be provided to obtain the gain most suitable for the terminal.
Based on this, in some embodiments, the method further comprises:
receiving second signal strength information, and determining a second path loss according to the second signal strength information; the second path loss characterizing a path loss between a terminal and the second network device; the second signal intensity information is sent by the terminal and then sent to the first network equipment through the second network equipment;
updating the current gain of the second target device according to the second path loss;
if the updated gain is smaller than or equal to the first target gain, the updated gain is used as a second target gain to be sent to the second network equipment; if the updated gain is greater than the first target gain, the first target gain is used as the second target gain to be sent to the second network equipment; the second network device employs the second target gain.
Wherein the second signal strength information includes: PHR, RSRP, etc.
Specifically, taking the example that the second signal strength information includes PHR, after the base station receives PHR of the terminal amplified by the repeater, the base station calculates a path loss between the base station and the repeater (i.e., a second path loss, denoted PL 2 ) The base station based on the path loss PL between the repeater and the terminal 2 Updating the current gain G of a repeater cur The updated gain G cur And transmitting to the repeater. If the conditions and the necessity of fine adjustment are not satisfied, the maximum permitted gain may be directly used as the gain of the second network device (i.e., repeater), and no subsequent fine adjustment may be performed.
Wherein determining the second path loss from the second signal strength information comprises:
determining a single PRB transmit power (denoted P) of the terminal when the terminal transmits said second signal strength information tx )；
Measuring single PRB received power (denoted as P) when the first network device receives the second signal strength information rx,gNB )；
Determining a current gain of the second network device (denoted G cur ) And a first path loss (denoted as PL 1 )；
And determining a second path loss according to the single PRB transmitting power of the terminal when the terminal transmits the second signal intensity information, the single PRB receiving power when the first network device receives the second signal intensity information, the gain of the second network device and the first path loss.
The method can be calculated by adopting the following formula: PL (PL) 2 ＝P tx -P rx,gNB +G cur -PL 1 。
Specifically, when the signal of the terminal is amplified and transmitted through the repeater, there are:
P rx,gNB ＝P tx -PL 2 +G cur -PL 1 +(P tx -PL 0 )
wherein P is rx,gNB The single PRB receiving power when the first network equipment receives the second signal strength information can be measured by the physical layer of the first network equipment side;
P tx the single PRB transmitting power of the terminal when the second signal intensity information is transmitted to the terminal can be calculated according to the second signal intensity information; for example, the second signal strength information is PHR, and P may be obtained by dividing PHR by the number of PRBs transmitted by the terminal tx The method comprises the steps of carrying out a first treatment on the surface of the When the second signal strength information is RSRP, the PSRP is taken as the P tx ；
PL 2 A path loss between the second network device and the terminal;
PL 1 a path loss between the first network device and the second network device;
G cur the current gain of the repeater;
PL 0 is the path loss between the first network device and the terminal.
In the embodiment of the invention, PL is considered 0 The signal of the terminal is difficult to reach the base station, so that the partial power component can be ignored, i.e. (P tx -PL 0 ) The fraction is approximately equal to 0; the path loss PL between the second network device and the terminal can be calculated 2 ：PL 2 ＝P tx -P rx,gNB +G cur -PL 1 。
Due to the gain G here cur Is a user-level parameter, and may be set to a repeater level or a repeater beam level according to a specific capability of the repeater in an actual implementation process.
By the gain control method, interference to other users and cells caused by overlarge gain of the repeater can be avoided by controlling the maximum gain, and the performance of the system is reduced; by controlling the real-time gain, the interference introduced by the repeater can be reduced as much as possible on the premise that the terminal signal is amplified well; the gain can be adjusted according to the real-time conditions of the network and the channel, so that the repeater can work under proper configuration.
Fig. 2 is a flow chart of another gain control method according to an embodiment of the present invention; as shown in fig. 2, the method may be applied to a second network device; the method comprises the following steps:
step 201, receiving a first target gain sent by a first network device; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the second network device and the first network device.
The first network device may be a base station; the second network device is an intelligent repeater (repeater for short).
In some embodiments, the method further comprises: the first signal strength information is transmitted to a first network device. The first signal strength information includes: PHR, RSRP, etc.
After the first network device receives the first signal strength information, the first network device determines a first target gain.
In practical application, a method for fine adjustment of the gain of the repeater can be provided to obtain the gain most suitable for the terminal.
Based on this, in some embodiments, the method further comprises:
sending second signal intensity information reported by the terminal to the first network equipment;
receiving a second target gain sent by the first network device; the second target gain is determined by the first network device according to a second path loss and a current gain of the second target device; the second path loss characterizes a path loss between a terminal and the second network device.
The second signal strength information includes: PHR, RSRP, etc.
Specifically, when the first network device determines that the updated gain is less than or equal to the first target gain, sending the updated gain to the second network device as a second target gain; when the updated gain is determined to be greater than the first target gain, the first target gain is used as the second target gain to be sent to the second network equipment; the second network device employs the second target gain.
It should be noted that, in some situations where it is inconvenient for the base station to configure the gain, for example, the second network device (i.e., repeater) just joins the network, the OAM device does not configure the first received power P est，max Or the repeater does not support the control of the self gain by other devices, etc., the first receiving power P can be made est，max And a second received power P typ，ue Is constant and is passed by the repeater through the first path loss PL 1 The first target gain G is obtained by looking up a table max I.e. a first target gain G for inquiry can be preset max Wherein the first received power P est，max And a second received power P typ，ue Constant, different first path loss PL 1 Corresponding to different first target gains G max The method comprises the steps of carrying out a first treatment on the surface of the When in use, the base station measures and obtains the first path loss PL 1 Will then first path loss PL 1 Informing the repeater station according to the received first path loss PL 1 Inquiring the relation table to obtain a corresponding first target gain G max 。
Fig. 3 is a flow chart of another gain control method according to an embodiment of the present invention; as shown in fig. 3, the method may be applied to an operation and maintenance management (OAM, operation Administration and Maintenance) device; the method comprises the following steps:
step 301, transmitting a first receiving power to a first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is configured to determine a first target gain according to the first received power and the first path loss, and send the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device.
The first network device may be a base station; the second network device is an intelligent repeater (repeater for short).
Here, the first received power (i.e., P est,max ) For the first network device, so that the first network device can operate according to the first received power and the first path loss (i.e. path loss PL between the base station and the repeater 1 ) The first target gain is obtained and used as the initial gain of the repeater, so that the repeater has a relatively rough and proper initial gain, and the process of adjusting the gain to the gain corresponding to the most proper terminal equipment can be accelerated while the overlarge gain is avoided.
For the problems that the repeater in the existing network cannot exert the actual capacity of the network and cause interference due to the fact that the repeater adopts fixed gain and is difficult to adapt to the wireless environment change, the user position change and other factors, the method provided by the embodiment of the invention can ensure that the repeater works in a more proper configuration by defining the maximum permitted received power (namely the first received power) and determining the maximum permitted gain (namely the first target gain) of the repeater according to the maximum permitted received power and the path loss between the base station and the repeater. Meanwhile, the method can avoid the use of excessive gain of the repeater on the basis of ensuring that the signal sent by the terminal equipment is well received, reduce the interference brought by the repeater and improve the energy efficiency ratio of the repeater under the possible condition.
Fig. 4 is a schematic flow chart of an automatic gain control method of an intelligent repeater according to an embodiment of the present invention; as shown in fig. 4, the maximum permitted received power P is configured by the OAM device est,max Maximum permitted received power P for base station est,max The upper limit of the (B) is the maximum single PRB receiving power of the terminal uplink which can be correctly decoded by the base station under the highest modulation order, the lower limit is the maximum single PRB expected receiving power of the base station, and the network manager can configure specific according to actual conditionsNumerical values.
The base station receives the power P according to the maximum grant est,max And path loss PL of base station and repeater 1 Determining maximum grant gain G for repeater max . If PHR of the terminal amplified by the repeater is received subsequently, the base station generates a path loss PL between the repeater and the terminal 2 Updating the current gain G of a repeater cur . Both gain parameters are sent by the base station to the repeater by means of associated signalling.
For the process of determining the maximum permitted gain and updating the current gain by the base station, see fig. 5 in particular.
Fig. 5 is a flow chart of another automatic gain control method of an intelligent repeater according to an embodiment of the present invention; as shown in fig. 5, the method includes:
step 501, OAM equipment configures maximum permitted received power (denoted P est,max ) And transmitting the configured maximum permitted received power of the single PRB to the base station;
here, P est,max The maximum permitted received power for a single PRB on the base station side. The network manager can configure specific values according to actual conditions, P est,max The upper limit of the value of (2) is the maximum single PRB receiving power which can be correctly decoded by the base station under the highest modulation order of the uplink of the terminal, and P est,max The lower limit of the value of (2) is the maximum value of the expected received power of a single PRB of the base station.
Step 502, the repeater sends a first PHR to the base station, and the base station measures the path loss (denoted PL 1 )；
Specifically, when a base station receives a first PHR sent by a repeater, measuring the receiving power when the base station receives the first PHR; determining the path loss PL between the base station and the repeater based on the pre-known transmit power of the repeater and the received power of the first PHR received by the base station 1 。
Step 503, the base station receives power P according to the maximum grant est,max And path loss PL of base station and repeater 1 Determining maximum permitted gain (denoted G max ) Maximum grant gain to be determined by correlation signalingAnd transmitting to the repeater.
Here, since the repeater has some UE capabilities, the repeater may also have PHR reporting. When the repeater reports PHR, the base station calculates the maximum grant gain G max Specifically, it is possible to: determining P est,max And path loss PL between base station and repeater 1 And filtering out a typical value P of the single PRB received power of the terminal at the repeater typ，ue The maximum allowable gain can be determined as follows: g max ＝P est,max +PL 1 -P typ,ue 。
Wherein P is typ，ue The maximum value of the single PRB expected receiving power of the base station can be obtained based on simulation under different scenes, can be configured by the OAM equipment or selected by the base station according to specific use scenes, and can be directly used. For example, in a user-dense scenario, to solve a large unit flow and avoid user interference, P typ，ue The value can be smaller; in a sparse user scenario, to solve the problem of edge user coverage, P typ，ue The value can be larger.
Maximum allowable gain G max The method has the significance that the repeater has a relatively rough and proper initial gain, and the process of adjusting the gain to the gain corresponding to the most proper terminal equipment can be accelerated while avoiding the overlarge gain. Thus, the determined maximum grant gain G max Can be used as the initial gain of the repeater.
The maximum allowable gain G can also be set if the conditions and the necessity of fine adjustment are not met max The gain of the repeater is directly used without subsequent fine adjustment. Under the scene that the base station is inconvenient to configure the gain, P can be made to be est,max And P typ,ue Is constant and can pass through the power line to the PL 1 Look-up table to obtain G max 。
Of course, the gain of the repeater may be finely adjusted based on the actual situation.
Based on this, in some embodiments, the method further comprises:
step 504, judging whether the terminal reports a second PHR;
step 505, when the terminal reports the second PHR, the base station calculates the path loss PL between the terminal and the repeater after receiving the second PHR amplified by the repeater 2 The method comprises the steps of carrying out a first treatment on the surface of the The base station based on the path loss PL between the terminal and the repeater 2 Updating the current gain G of a repeater cur ；
Step 506, determining the updated gain G cur Whether or not it is smaller than the maximum allowable gain G max ；
Step 507, determining updated gain G cur Less than maximum grant gain G max The updated gain G cur Transmitting to a repeater;
step 508, determining the updated gain G cur Greater than or equal to maximum allowable gain G max Will G max And transmitting to the repeater.
Specifically, when the signal of the terminal is amplified and transmitted through the repeater, there are:
P rx,gNB ＝P tx -PL 2 +G cur -PL 1 +(P tx -PL 0 )
wherein P is rx,gNB The single PRB receiving power when the base station side corresponds to the second PHR, namely the single PRB receiving power when the base station receives the second PHR, can be obtained by measuring a physical layer of the base station side;
P tx the single PRB transmitting power of the terminal at the moment corresponding to the second PHR, namely the single PRB transmitting power of the terminal when the terminal transmits the second PHR, can be calculated according to the second PHR;
PL 2 Is the path loss between the repeater and the terminal;
PL 1 path loss between the base station and the repeater;
G cur the current gain of the repeater;
PL 0 is the path loss between the base station and the terminal.
Taking into account PL 0 The signal of the terminal is difficult to directly reach the base station, so that the partial power component can be ignored, and the path loss between the repeater and the terminal can be calculatedPL 2 ：PL 2 ＝P tx -P rx,gNB +G cur -PL 1 。
If necessary, the power component of the direct part of the terminal at the base station side can be considered in practical application, and the repeater is temporarily turned off to measure PL 0 To reduce PL 2 Is calculated error of (a).
Due to PL 2 The current gain G of the repeater can be calculated by the method cur Can be based on the maximum allowable received power P of a single PRB at the base station side est,max Typical value P of single PRB received power of terminal at repeater typ,ue Path loss PL between base station and repeater 1 Path loss PL between repeater and terminal 2 And the current transmitting power P of the terminal tx Filtering and calculating.
The gain issued by the base station is only required to be within the interval, and the specific calculation can be determined by the actual condition of the current network and the internal implementation of the base station. The base station calculates the current gain G cur And then, the gain is sent to the repeater through signaling, and the repeater uses the gain as the current gain. Note the current gain G cur Not greater than maximum permitted gain G max 。
Compared with the two methods of directly configuring the gain by the network manager and determining the gain by the repeater according to the path loss between the repeater and the base station, the method provided by the embodiment of the invention can reduce interference on the premise of ensuring sufficient gain according to the path loss from the terminal to the repeater and the maximum permitted receiving power of the base station. Due to the adoption of the method for configuring the real-time gain of the repeater according to the uplink path loss and the base station, the path loss between the repeater and the terminal is considered, the near-far effect can be reduced to a certain extent, and more proper repeater gain is obtained.
Fig. 6 is a schematic structural diagram of a communication system according to an embodiment of the present invention; as shown in fig. 6, the system includes: a base station, a repeater and a terminal; wherein the path loss between the base station and the repeater is denoted as PL 1 The method comprises the steps of carrying out a first treatment on the surface of the The path loss between repeater and terminal is denoted PL 2 The method comprises the steps of carrying out a first treatment on the surface of the Base stationThe path loss between terminals is denoted PL 0 。
Fig. 7 is a schematic structural diagram of a gain control apparatus according to an embodiment of the present invention; as shown in fig. 7, applied to a first network device, the apparatus includes: the first processing module and the first communication module; wherein,,
The first processing module is used for determining a first receiving power and a first path loss; determining a first target gain according to the first received power and the first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device;
the first communication module is configured to send the first target benefit to the second network device.
In some embodiments, the first processing module is specifically configured to determine a sum of the first received power and the first path loss;
determining a difference between a sum of the first received power and the first path loss and a second received power as the first target gain; the second received power characterizes a typical value of single PRB received power of the terminal at the second network device.
In some embodiments, the first communication module is specifically configured to receive a first received power configured and sent by an OAM device;
the first communication module is specifically configured to receive first signal strength information sent by the second network device; the first processing module is specifically configured to determine a first path loss according to the first signal strength information.
In some embodiments, the first communication module is further configured to receive second signal strength information;
the first processing module is further configured to determine a second path loss according to the second signal strength information; the second path loss characterizing a path loss between a terminal and the second network device; the second signal intensity information is sent by the terminal and then sent to the first network equipment through the second network equipment;
updating the current gain of the second target device according to the second path loss;
if the updated gain is smaller than or equal to the first target gain, the updated gain is used as a second target gain to be sent to the second network equipment; if the updated gain is greater than the first target gain, the first target gain is used as the second target gain to be sent to the second network equipment; the second network device employs the second target gain.
In some embodiments, the first processing module is configured to determine a single PRB transmit power of the terminal when the terminal transmits the second signal strength information;
measuring single PRB receiving power when the first network equipment receives the second signal strength information;
Determining the current gain and the first path loss of the second network device;
and determining a second path loss according to the single PRB transmitting power of the terminal when the terminal transmits the second signal intensity information, the single PRB receiving power when the first network device receives the second signal intensity information, the gain of the second network device and the first path loss.
In some embodiments, the first network device is a base station and/or the second network device is a repeater.
It should be noted that: in the gain control apparatus provided in the above embodiment, when implementing the corresponding gain control method, only the division of each program module is used for illustration, in practical application, the process allocation may be performed by different program modules according to needs, that is, the internal structure of the first network device is divided into different program modules, so as to complete all or part of the processes described above. In addition, the apparatus provided in the foregoing embodiments and the embodiments of the corresponding methods belong to the same concept, and specific implementation processes of the apparatus and the embodiments of the methods are detailed in the method embodiments, which are not described herein again.
Fig. 8 is a schematic structural diagram of another gain control apparatus according to an embodiment of the present invention; as shown in fig. 8, applied to the second network device, the apparatus includes: a second communication module;
The second communication module is used for receiving a first target gain sent by the first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper receive power limit of a single PRB of the first network device; the first path loss is a path loss between the second network device and the first network device.
In some embodiments, the second communication module is further configured to send second signal strength information reported by the terminal to the first network device;
receiving a second target gain sent by the first network device; the second target gain is determined by the first network device according to a second path loss and a current gain of the second target device; the second path loss characterizes a path loss between a terminal and the second network device.
In some embodiments, the second communication module is further configured to send the first signal strength information to the first network device.
In some embodiments, the first network device is a base station and/or the second network device is a repeater.
It should be noted that: in the gain control apparatus provided in the above embodiment, when implementing the corresponding gain control method, only the division of each program module is used for illustration, in practical application, the process allocation may be performed by different program modules according to needs, that is, the internal structure of the second network device is divided into different program modules, so as to complete all or part of the processes described above. In addition, the apparatus provided in the foregoing embodiments and the embodiments of the corresponding methods belong to the same concept, and specific implementation processes of the apparatus and the embodiments of the methods are detailed in the method embodiments, which are not described herein again.
Fig. 9 is a schematic structural diagram of another gain control apparatus according to an embodiment of the present invention; as shown in fig. 9, the apparatus applied to an OAM device includes: a third communication module;
the third communication module is configured to send a first receiving power to the first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is configured to determine a first target gain according to the first received power and the first path loss, and send the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device.
In some embodiments, the first network device is a base station and/or the second network device is a repeater.
It should be noted that: in the gain control apparatus provided in the above embodiment, when implementing the corresponding gain control method, only the division of each program module is used for illustration, in practical application, the process allocation may be performed by different program modules according to needs, that is, the internal structure of the OAM device is divided into different program modules, so as to complete all or part of the processes described above. In addition, the apparatus provided in the foregoing embodiments and the embodiments of the corresponding methods belong to the same concept, and specific implementation processes of the apparatus and the embodiments of the methods are detailed in the method embodiments, which are not described herein again.
Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention, as shown in fig. 10, where the communication device 100 includes: a processor 1001 and a memory 1002 for storing a computer program capable of running on the processor;
when the communication device 100 is applied to a first network device, the processor 1001 is configured to execute, when executing the computer program: determining a first received power and a first path loss; the first received power characterizes an upper bound of a single physical resource block, PRB, grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device; determining a first target gain according to the first received power and the first path loss; and sending the first target benefit to the second network device. Specifically, the communication device may also execute the method shown in fig. 1, which belongs to the same concept as the gain control method embodiment shown in fig. 1, and the detailed implementation process of the communication device is detailed in the method embodiment, which is not described herein again.
When the communication device 100 is applied to a second network device, the processor 1001 is configured to execute, when executing the computer program: receiving a first target gain sent by first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the second network device and the first network device. Specifically, the communication device may also execute the method shown in fig. 2, which belongs to the same concept as the gain control method embodiment shown in fig. 2, and the detailed implementation process of the communication device is detailed in the method embodiment, which is not described herein again.
When the communication device 100 is applied to an OAM device, the processor 1001 is configured to execute, when executing the computer program: transmitting a first received power to a first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is used for determining a first target gain according to the first receiving power and the first path loss and transmitting the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device. Specifically, the communication device may also execute the method shown in fig. 3, which belongs to the same concept as the gain control method embodiment shown in fig. 3, and the detailed implementation process of the communication device is referred to the method embodiment, which is not described herein.
In practical applications, the communication device 100 may further include: at least one network interface 1003. The various components in the communication device 100 are coupled together by a bus system 1004. It is to be appreciated that the bus system 1004 serves to facilitate connective communication between these components. The bus system 1004 includes a power bus, a control bus, and a status signal bus in addition to the data bus. The various buses are labeled in fig. 4 as bus system 1004 for clarity of illustration. The number of the processors 1001 may be at least one. The network interface 1003 is used for wired or wireless communication between the communication device 100 and other devices.
The memory 1002 in embodiments of the present invention is used to store various types of data to support the operation of the communication device 100.
The method disclosed in the above embodiment of the present invention may be applied to the processor 1001 or implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 1001 or by instructions in the form of software. The Processor 1001 may be a general purpose Processor, a DiGital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 1001 may implement or execute the methods, steps and logic blocks disclosed in the embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the invention can be directly embodied in the hardware of the decoding processor or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium in the memory 1002 and the processor 1001 reads information in the memory 1002, in combination with its hardware, to perform the steps of the method as described above.
In an exemplary embodiment, the communication device 100 may be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSPs, programmable logic devices (PLD, programmable Logic Device), complex programmable logic devices (CPLD, complex Programmable Logic Device), field programmable gate arrays (FPGA, field-Programmable Gate Array), general purpose processors, controllers, microcontrollers (MCU, micro Controller Unit), microprocessors (Microprocessor), or other electronic components for performing the aforementioned methods.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored;
the computer readable storage medium is applied to a first network device, and the computer program, when executed by a processor, performs: determining a first received power and a first path loss; the first received power characterizes an upper bound of a single physical resource block, PRB, grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device; determining a first target gain according to the first received power and the first path loss; and sending the first target benefit to the second network device. Specifically, the computer program may also execute the method shown in fig. 1, which belongs to the same concept as the gain control method embodiment shown in fig. 1, and the detailed implementation process of the computer program is detailed in the method embodiment, which is not described herein again.
The computer readable storage medium is applied to a second network device, and the computer program, when executed by a processor, performs: receiving a first target gain sent by first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the second network device and the first network device. Specifically, the computer program may also execute the method shown in fig. 2, which belongs to the same concept as the gain control method embodiment shown in fig. 2, and the detailed implementation process of the computer program is detailed in the method embodiment, which is not described herein again.
The computer readable storage medium is applied to an OAM device, and the computer program when executed by a processor performs: transmitting a first received power to a first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is used for determining a first target gain according to the first receiving power and the first path loss and transmitting the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device. Specifically, the computer program may also execute the method shown in fig. 3, which belongs to the same concept as the gain control method embodiment shown in fig. 3, and the detailed implementation process of the computer program is detailed in the method embodiment, which is not described herein again.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program when executed performs steps including the above method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, or the like, which can store program codes.
Alternatively, the above-described integrated units of the present invention may be stored in a computer-readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.
In addition, the embodiments of the present application may be arbitrarily combined without any collision.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (17)
1. A method of gain control applied to a first network device, the method comprising:
determining a first received power and a first path loss; the first received power characterizes an upper bound of a single physical resource block, PRB, grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device;
determining a first target gain according to the first received power and the first path loss;
And sending the first target benefit to the second network device.
2. The method of claim 1, wherein said determining a first target gain based on said first received power and said first path loss comprises:
determining a sum of the first received power and the first path loss;
determining a difference between a sum of the first received power and the first path loss and a second received power as the first target gain; the second received power characterizes a typical value of single PRB received power of the terminal at the second network device.
3. The method of claim 1, wherein the determining the first received power and the first path loss comprises:
receiving a first receiving power configured and transmitted by the operation, maintenance and management (OAM) equipment;
and receiving first signal intensity information sent by the second network equipment, and determining first path loss according to the first signal intensity information.
4. The method according to claim 1, wherein the method further comprises:
receiving second signal strength information, and determining a second path loss according to the second signal strength information; the second path loss characterizing a path loss between a terminal and the second network device; the second signal intensity information is sent by the terminal and then sent to the first network equipment through the second network equipment;
Updating the current gain of the second target device according to the second path loss;
if the updated gain is smaller than or equal to the first target gain, the updated gain is used as a second target gain to be sent to the second network equipment; if the updated gain is greater than the first target gain, the first target gain is used as the second target gain to be sent to the second network equipment; the second network device employs the second target gain.
5. The method of claim 4, wherein said determining a second path loss from said second signal strength information comprises:
determining single PRB transmitting power of the terminal when the terminal transmits the second signal strength information;
measuring single PRB receiving power when the first network equipment receives the second signal strength information;
determining the current gain and the first path loss of the second network device;
and determining a second path loss according to the single PRB transmitting power of the terminal when the terminal transmits the second signal intensity information, the single PRB receiving power when the first network device receives the second signal intensity information, the gain of the second network device and the first path loss.
6. The method according to any of claims 1 to 5, wherein the first network device is a base station and/or the second network device is a repeater.
7. A method of gain control, applied to a second network device; the method comprises the following steps:
receiving a first target gain sent by first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the second network device and the first network device.
8. The method of claim 7, wherein the method further comprises:
sending second signal intensity information reported by the terminal to the first network equipment;
receiving a second target gain sent by the first network device; the second target gain is determined by the first network device according to a second path loss and a current gain of the second target device; the second path loss characterizes a path loss between a terminal and the second network device.
9. The method of claim 7, wherein the method further comprises: the first signal strength information is transmitted to a first network device.
10. The method according to any of claims 7 to 9, wherein the first network device is a base station and/or the second network device is a repeater.
11. A gain control method, characterized by being applied to an OAM device; the method comprises the following steps:
transmitting a first received power to a first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is used for determining a first target gain according to the first receiving power and the first path loss and transmitting the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device.
12. The method according to claim 11, wherein the first network device is a base station and/or the second network device is a repeater.
13. A gain control apparatus for use with a first network device, comprising: the first processing module and the first communication module; wherein,,
the first processing module is used for determining a first receiving power and a first path loss; determining a first target gain according to the first received power and the first path loss; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first path loss is a path loss between the first network device and a second network device;
The first communication module is configured to send the first target benefit to the second network device.
14. A gain control apparatus for use with a second network device, comprising: a second communication module;
the second communication module is used for receiving a first target gain sent by the first network equipment; the first target gain is determined by the first network device according to a first received power and a first path loss; the first received power characterizes an upper receive power limit of a single PRB of the first network device; the first path loss is a path loss between the second network device and the first network device.
15. A gain control apparatus, for use in an OAM device, comprising: a third communication module;
the third communication module is configured to send a first receiving power to the first network device; the first received power characterizes an upper bound of single PRB grant received power for the first network device; the first network device is configured to determine a first target gain according to the first received power and the first path loss, and send the first target gain to the second network device; the first path loss is a path loss between the second network device and the first network device.
16. 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 processor implements the steps of the method of any of claims 1 to 6 when the program is executed; or,
the processor implementing the steps of the method of any one of claims 7 to 10 when executing the program; or,
the processor, when executing the program, implements the steps of the method of claim 11 or 12.
17. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor realizes the steps of the method according to any of claims 1 to 6; or,
the computer program implementing the steps of the method of any one of claims 7 to 10 when executed by a processor; or,
which computer program, when being executed by a processor, carries out the steps of the method according to claim 11 or 12.
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