CN111050406B - Method, device, storage medium and network equipment for transmitting system information - Google Patents
Method, device, storage medium and network equipment for transmitting system information Download PDFInfo
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Abstract
The present disclosure relates to a method, an apparatus, a storage medium, and a network device for transmitting system information, the method comprising: acquiring a plurality of label information of a target terminal, wherein the target terminal is a terminal which requests target system information from network equipment in a first time window; predicting the number of times of the target terminal requesting the target system information in a second time window according to the label information; and determining the target system information and the sending mode of the target system information according to the request times, and sending the target system information by adopting the sending mode. Therefore, the target system information can be sent in an optimal mode, so that good compromise between the cost of issuing the target system information by the network equipment and the cost of requesting the target system information by the target terminal is realized, the overall cost of the system is reduced, and the performance of the system is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a storage medium, and a network device for sending system information.
Background
In the communication technology, the traditional 2G/3G/4G system information is sent by a base station through broadcasting, and in the 5G era, in order to reduce the resource overhead, an on-demand system information sending mechanism is provided, namely, a part of system information is sent as basic system information through periodic broadcasting, and the other part of system information is sent as other system information through a terminal request mode or is sent by the base station in a scheduling mode.
However, the content and transmission method included in the basic system information and other system information designed by 5G at present cannot be changed according to the protocol, and there is insufficient flexibility. On one hand, when a part of contents in other system information has many terminal requests, the contents also need to be transmitted in a broadcast manner, which may cause signaling overhead of the terminal requesting the part of system information and increase time delay of receiving the part of system information; on the other hand, the content in part of the basic system information may also be unnecessary for the terminals in the base station in a special deployment scenario in most cases, which may result in a reduction in the overhead of this part of information transmission.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides a method, an apparatus, a storage medium, and a network device for transmitting system information.
In a first aspect, the present disclosure provides a method for transmitting system information, the method comprising: acquiring a plurality of label information of a target terminal, wherein the target terminal is a terminal which requests target system information from network equipment in a first time window; predicting the number of times of the target terminal requesting the target system information in a second time window according to the label information; and determining the target system information and the sending mode of the target system information according to the request times, and sending the target system information by adopting the sending mode.
Optionally, the predicting, according to the tag information, the number of times that the target terminal requests the target system information in a second time window includes: acquiring a preset label weight corresponding to each label information; acquiring a terminal corresponding to each tag information, and requesting the network equipment for a first request time of the target system information in the first time window; and predicting the request times of the target terminal for requesting the target system information in the second time window according to the first request times and the preset label weight.
Optionally, the predicting, according to the first number of requests and the preset tag weight, the number of requests of the target terminal for requesting the target system information in the second time window includes: the number of requests is obtained by the following formula:
wherein, Y est For the number of requests, N is the number of the tag information, T j The number of the first requests corresponding to the jth label information, W j And the preset label weight corresponding to the jth label information.
Optionally, after determining the target system information and the sending method of the target system information according to the number of times of the request, and sending the target system information in the sending method, the method further includes: acquiring a second request frequency of the target terminal for actually requesting the target system information in the second time window; and if the difference value between the request times and the second request times is larger than or equal to a preset difference value threshold value, updating the preset label weight to obtain a new preset label weight, wherein the new preset label weight is used for predicting the request times of the target terminal for requesting the target system information in the next time window of the second time window.
Optionally, the determining, according to the number of times of the request, the target system information and a sending method of the target system information, and sending the target system information in the sending method includes: if the request times are greater than or equal to a first preset threshold value, adding the target system information to basic system information, sending an identifier bearing the target system information in the basic system information, and periodically broadcasting the basic system information containing the target system information, wherein the basic system information comprises the identifier of the target system information and resource position information corresponding to the target system information; or, if the number of times of the request is less than the first preset threshold and is greater than or equal to a second preset threshold, sending the target system information in a broadcast manner, and sending an identifier for sending the target system information and resource location information corresponding to the target system information in the basic system information; or, if the request times are less than the second preset threshold, sending the target system information in a unicast mode.
Optionally, the obtaining of the plurality of tag information of the target terminal includes: acquiring the label information from the target terminal; or, obtaining the tag information from the network device; or, the label information is obtained from the network management equipment.
Optionally, the obtaining the tag information from the network management device includes: sending a tag request message to the network management equipment, wherein the tag request message is used for requesting tag information corresponding to the target terminal; and receiving a response message returned by the network management equipment according to the label request message, wherein the response message comprises the label information.
Optionally, the tag information includes one or more of an identifier of the target terminal, a terminal type, a moving speed, a quality of service QoS class, a transmission power, a reception power for a downlink reference signal/synchronization signal/channel state indication signal of a network device, and location information.
In a second aspect, the present disclosure provides an apparatus for transmitting system information, the apparatus comprising: the system comprises a tag information acquisition module, a tag information acquisition module and a tag information acquisition module, wherein the tag information acquisition module is used for acquiring a plurality of tag information of a target terminal, and the target terminal is a terminal which requests target system information from network equipment in a first time window; the prediction module is used for predicting the request times of the target terminal for requesting the target system information in a second time window according to the label information; and the sending module is used for determining the target system information and the sending mode of the target system information according to the request times and sending the target system information by adopting the sending mode.
Optionally, the prediction module is specifically configured to: acquiring a preset label weight corresponding to each label information; acquiring a terminal corresponding to each tag information, and requesting the network equipment for a first request time of the target system information in the first time window; and predicting the request times of the target terminal for requesting the target system information in the second time window according to the first request times and the preset label weight.
Optionally, the prediction module is further configured to: the number of requests is obtained by the following formula:
wherein Y is est For the number of requests, N is the number of the tag information, T j The number of the first requests corresponding to the jth label information, W j And the preset label weight corresponding to the jth label information.
Optionally, the apparatus further comprises: a request frequency acquiring module, configured to acquire a second request frequency for actually requesting the target system information by the target terminal in the second time window; and the updating module is used for updating the preset label weight to obtain a new preset label weight if the difference value between the request times and the second request times is greater than or equal to a preset difference value threshold, wherein the new preset label weight is used for predicting the request times of the target terminal for requesting the target system information in the next time window of the second time window.
Optionally, the sending module is specifically configured to: if the request times are greater than or equal to a first preset threshold value, adding the target system information to basic system information, sending an identifier bearing the target system information in the basic system information, and periodically broadcasting the basic system information containing the target system information, wherein the basic system information comprises the identifier of the target system information and resource position information corresponding to the target system information; or, if the number of times of the request is less than the first preset threshold and is greater than or equal to a second preset threshold, sending the target system information in a broadcast manner, and sending an identifier for sending the target system information and resource location information corresponding to the target system information in the basic system information; or, if the request times are less than the second preset threshold, sending the target system information in a unicast mode.
Optionally, the tag information obtaining module is specifically configured to: acquiring the label information from the target terminal; or, obtaining the tag information from the network device; or, the label information is obtained from the network management equipment.
Optionally, the tag information obtaining module is further configured to: sending a tag request message to the network management equipment, wherein the tag request message is used for requesting tag information corresponding to the target terminal; and receiving a response message returned by the network management equipment according to the label request message, wherein the response message comprises the label information.
Optionally, the tag information includes one or more of an identifier of the target terminal, a terminal type, a moving speed, a quality of service QoS class, a transmission power, a reception power for a downlink reference signal/synchronization signal/channel state indication signal of a network device, and location information.
In a third aspect, the present disclosure provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of the present disclosure.
In a fourth aspect, the present disclosure provides a network device, comprising: a memory having a computer program stored thereon; a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of the disclosure.
According to the technical scheme, a plurality of label information of a target terminal is obtained, wherein the target terminal is a terminal which requests target system information from network equipment in a first time window; predicting the number of times of the target terminal requesting the target system information in a second time window according to the label information; and determining the target system information and the sending mode of the target system information according to the request times, and sending the target system information by adopting the sending mode, namely, predicting the request times of the target terminal for requesting the target system information and sending the target system information according to the request times, so that the target system information can be sent in an optimal mode, thereby realizing good compromise between the cost of sending the target system information by the network equipment and the cost of requesting the target system information by the target terminal, reducing the overall cost of the system and improving the performance of the system.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:
fig. 1 is a flowchart of a method for sending system information according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another method for sending system information according to an embodiment of the disclosure;
fig. 3 is a schematic structural diagram of an apparatus for transmitting system information according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another apparatus for sending system information according to an embodiment of the present disclosure
Fig. 5 is a block diagram of a network device provided by an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
First, an application scenario of the present disclosure will be explained. The method is mainly applied to a scene that network equipment (such as a base station or core network equipment) sends system information to a terminal in a communication technology, the traditional 2G/3G/4G system information is sent by the base station through broadcasting, in order to reduce resource overhead in the 5G era, an on-demand system information sending mechanism is provided, namely, a part of system information is sent as basic system information through periodic broadcasting, the other part of system information is sent as other system information through a terminal request mode, and the base station sends or base station schedules and sends the system information. The basic system information may include frame timing information, information indicating cell barring access, and a synchronization signal block indication; other system information may include radio resource configuration information, intra-frequency/inter-system cell reselection information, home base station information, earthquake and tsunami warning system information, location service information, car networking related configuration information, and the like. However, the content and transmission method included in the basic system information and other system information of the 5G design cannot be changed according to the protocol, and there is insufficient flexibility. On one hand, when a part of contents in other system information has many terminal requests, the contents also need to be transmitted in a broadcast manner, which may cause signaling overhead of the terminal requesting the part of system information and increase time delay of receiving the part of system information; on the other hand, the content in part of the basic system information may also be unnecessary for the terminals in the base station in a special deployment scenario in most cases, which may result in a reduction in the overhead of this part of information transmission.
In order to solve the existing problems, the present disclosure provides a method, an apparatus, a storage medium, and a network device for sending system information, according to tag information, predicting the number of times a target terminal requests target system information in a second time window, and sending the target system information according to the number of times of the request, so that the target system information can be sent in an optimal manner, thereby achieving a good compromise between the overhead of sending the target system information by the network device and the overhead of requesting the target system information by the target terminal, reducing the overall overhead of the system, and improving the performance of the system.
The following detailed description is provided for a specific embodiment of the present disclosure with reference to the accompanying drawings, and the technical solutions provided by the following embodiments of the present disclosure may be applied to a wireless communication network, for example: an LTE (Long Term Evolution ) system, an LTE-a (Long Term Evolution Advanced ) system, and further evolved networks thereof, such as a 5G network.
A base station, which may be a device that communicates with user equipment or other communication stations, such as relay stations, and terminals may be included in a wireless communication network. The base station may provide communication coverage in a specific physical area, for example, the base station may specifically be an ENB (evolved Node B) in LTE, or may also be other access network equipment providing access service in a wireless communication network.
Fig. 1 is a flowchart of a method for sending system information according to an embodiment of the present disclosure, and as shown in fig. 1, the method includes the following steps:
s101, obtaining a plurality of label information of the target terminal.
The target terminal is a terminal which requests target system information from the network equipment in a first time window, the target system information corresponds to one or more system information blocks and can include any system information of other system information such as wireless resource configuration information, intra-frequency/inter-system cell reselection information, home base station information, earthquake and tsunami early warning system information, positioning service information, vehicle networking related configuration information and the like; the tag information is a mark that is set by the network device for a terminal with one or a group of characteristics, and in the present disclosure, the tag information may include one or more of an identifier of the target terminal, a terminal type (such as a handheld terminal, a mobile signal access terminal CPE, an internet of things type terminal, a URLLC type terminal, a private network terminal, a different category type terminal, and the like), a moving speed, a quality of service QoS level, a transmitting power, a receiving power of a downlink reference signal/synchronization signal/channel state indication signal for the network device, and location information.
In this step, the network device may obtain the tag information from the target terminal; or, obtaining the tag information from the network device; or, the tag information is obtained from a network management device, where the network management device generally refers to a network management system independent of the wireless network device and the core network device.
Wherein, if the network device obtains the tag information from the target terminal, the target terminal may actively report the tag information to the network device when accessing the network for authentication, for example, the target terminal may report the terminal type to the network device when accessing the network, and when the target terminal initiates a service, the network device may configure the QoS class of the target terminal service based on the service type, the target terminal may configure the QoS class of the target terminal service based on the network device configuration, by event-triggered reporting or periodically reporting the location of the target terminal, the system information request initiation time, the moving speed of the target terminal, etc., the network device can determine the movement track of the target terminal according to all location information reported by the target terminal in the first time window, and then, the network equipment can also determine the transmitting power of the target terminal according to the channel condition and the service requirement of the position of the target terminal; the target terminal may also report the target terminal capability information when reporting the target terminal capability information, which is not limited by the present disclosure.
If the tag information is obtained from the network device, the network device may search the tag information of the target terminal from the pre-stored tag information of the plurality of terminals according to the identification information of the target terminal. In addition, if the network device obtains the tag information from the network management device, the network device may send a tag request message to the network management device, where the tag request message is used to request to obtain the tag information corresponding to the target terminal, and the tag request message may carry terminal identification information of the target terminal, so that the network management device may search for and feed back the tag information corresponding to the target terminal to the network device according to the terminal identification information, at this time, the network device receives a response message returned by the network management device according to the tag request message, and the response message includes the tag information of the target terminal.
It should be noted that, if the target system information is any system information in other system information, the present disclosure may determine whether the target system information may be added to the basic system information, and send the target system information in a manner of the basic system information; in addition, the target system information may further include any one of basic system information such as frame timing information, information indicating cell barring, and a synchronization signal block indication, where if the target system information is any one of the basic system information, the present disclosure may determine whether the target system information satisfies a condition for transmitting the basic system information, for example, the number of requests of the target terminal is small for a part of network devices, and at this time, the target system information may be removed from the basic system information and transmitted in the form of other system information.
And S102, predicting the number of times of the target terminal requesting the target system information in the second time window according to the label information.
And the second time window is the next time window of the first time window.
In this step, after obtaining a plurality of tag information of the target terminal, a preset tag weight corresponding to each tag information may be obtained, and a first request number of times for requesting the target system information from the network device in a first time window by the terminal corresponding to each tag information, and then a request number of times for requesting the target system information by the target terminal in a second time window may be predicted according to the first request number and the preset tag weight. The preset label weight can be preset according to the type of the label information, and the network device can acquire the preset label weight corresponding to the label information according to the identifier of the label information.
S103, determining the target system information and the sending mode of the target system information according to the request times, and sending the target system information by adopting the sending mode.
In this step, after obtaining the number of times that the target terminal requests the target system information in the second time window, a first preset threshold and a second preset threshold may be obtained, and if the number of times of the request is greater than or equal to the first preset threshold, the target system information is added to the basic system information, an identifier carrying the target system information is sent in the basic system information, and the basic system information including the target system information is periodically broadcast, wherein the basic system information includes the identifier of the target system information and resource location information corresponding to the target system information; if the request times are less than a first preset threshold and greater than or equal to a second preset threshold, sending target system information in a broadcasting mode, and sending an identifier for sending the target system information and resource position information corresponding to the target system information in basic system information; and if the request times are less than a second preset threshold value, sending the target system information in a unicast mode.
The first preset threshold and the second preset threshold can be preset according to the signaling overhead of the target terminal for requesting the target system information, so that the performance of the system can be optimized.
By adopting the method, a plurality of label information of the target terminal is obtained, the request times of the target terminal for requesting the target system information in the second time window are predicted according to the label information, and the target system information is sent according to the request times. Therefore, the target system information can be sent in an optimal mode, so that good compromise between the cost of issuing the target system information by the network equipment and the cost of requesting the target system information by the target terminal is realized, the overall cost of the system is reduced, and the performance of the system is improved.
Fig. 2 is a flowchart of another method for sending system information according to an embodiment of the present disclosure, and as shown in fig. 2, the method includes the following steps:
s201, acquiring a plurality of label information of the target terminal.
The target terminal is a terminal which requests target system information from the network equipment in a first time window, the target system information corresponds to one or more system information blocks and can include any system information of other system information such as wireless resource configuration information, intra-frequency/inter-system cell reselection information, home base station information, earthquake and tsunami early warning system information, positioning service information, vehicle networking related configuration information and the like; the tag information is a mark that is set by the network device for a terminal with one or a group of characteristics, and in the present disclosure, the tag information may include one or more of an identifier of the target terminal, a terminal type (such as a handheld terminal, a mobile signal access terminal CPE, an internet of things type terminal, a URLLC type terminal, a private network terminal, a different category type terminal, and the like), a moving speed, a quality of service QoS level, a transmitting power, a receiving power of a downlink reference signal/synchronization signal/channel state indication signal for the network device, and location information.
In this step, the network device may obtain the tag information from the target terminal; or, obtaining the tag information from the network device; or, the tag information is obtained from a network management device, where the network management device generally refers to a network management system independent of the wireless network device and the core network device.
Wherein, if the network device obtains the tag information from the target terminal, the target terminal may actively report the tag information to the network device when accessing the network for authentication, for example, the target terminal may report the terminal type to the network device when accessing the network, and when the target terminal initiates a service, the network device may configure the QoS class of the target terminal service based on the service type, the target terminal may configure the QoS class of the target terminal service based on the network device configuration, by event-triggered reporting or periodically reporting the location of the target terminal, the system information request initiation time, the moving speed of the target terminal, etc., the network device can determine the movement track of the target terminal according to all location information reported by the target terminal in the first time window, and then, the network equipment can also determine the transmitting power of the target terminal according to the channel condition and the service requirement of the position of the target terminal; the target terminal may also report the target terminal capability information when reporting the target terminal capability information, which is not limited by the present disclosure.
If the tag information is obtained from the network device, the network device may search the tag information of the target terminal from the pre-stored tag information of the plurality of terminals according to the identification information of the target terminal. In addition, if the network device obtains the tag information from the network management device, the network device may send a tag request message to the network management device, where the tag request message is used to request to obtain the tag information corresponding to the target terminal, and the tag request message may carry terminal identification information of the target terminal, so that the network management device may search for and feed back the tag information corresponding to the target terminal to the network device according to the terminal identification information, at this time, the network device receives a response message returned by the network management device according to the tag request message, and the response message includes the tag information of the target terminal.
It should be noted that, if the target system information is any one of other system information, the present disclosure may determine whether the target system information may be added to the basic system information, and send the target system information in a manner of the basic system information; in addition, the target system information may further include any one of basic system information such as frame timing information, information indicating cell barring, and a synchronization signal block indication, where if the target system information is any one of the basic system information, the present disclosure may determine whether the target system information satisfies a condition for transmitting the basic system information, for example, the number of requests of the target terminal is small for a part of network devices, and at this time, the target system information may be removed from the basic system information and transmitted in the form of other system information.
S202, acquiring a preset label weight corresponding to each label information.
In this step, the network device may preset a corresponding initial weight, that is, a preset tag weight, for each tag information, where the preset tag weight may be obtained by a method in the prior art, and exemplarily, the preset tag weight may be obtained by gaussian distribution, for example, the preset tag weight is initialized to a random number, which conforms to the distribution of gaussian functions, and a mean value of the corresponding gaussian functions is 0 and a standard deviation is 1; the preset label weight can also be obtained through Xavier, for example, the distribution of the preset label weight can be uniform distribution with a mean value of 0 and a variance of (1/number of inputs); the preset tag weight may also be obtained through uniform distribution, for example, a set of random numbers that are continuously and uniformly distributed in the [ min, max ] interval is generated, and the manner of obtaining the preset tag weight is not limited herein.
S203, acquiring a terminal corresponding to each label information, and requesting the network equipment for a first request frequency of the target system information in a first time window.
In this step, in a first time window, for each tag information, acquiring a terminal corresponding to the tag information, and requesting a network device for a first request number of times of the target system information, for example, for tag information 1 (car networking communication type), acquiring a request number of times of a target terminal of a car networking communication type requesting the target system information from the network device in the first time window, for example, there are 4 target terminals of the car networking communication type requesting the target system information, where target terminal a requests 20 times, target terminal B requests 30 times, target terminal C requests 10 times, target terminal D requests 50 times, and then the first request number of times corresponding to tag information 1 is 110 times; for tag information 2(Qos level is 2), acquiring the number of times of requests of a target terminal requesting the network device for Qos level 2 of the target system information within a first time window, for example, there are 3 target terminals requesting the Qos level 2 of the target system information, where the target terminal a requests 20 times, the target terminal E requests 40 times, and the target terminal F requests 30 times, and then the number of first requests corresponding to the tag information 2 is 90 times.
And S204, predicting the request times of the target terminal for requesting the target system information in the second time window according to the first request times and the preset label weight.
In this step, after the first number of requests and the preset tag weight are obtained, the number of requests of the target terminal for requesting the target system information in the second time window may be predicted by the following formula:
wherein, Y est Number of requests, N number of tag information, T j A first request frequency, W, corresponding to jth label information j And presetting the label weight corresponding to the jth label information.
S205, acquiring a second request frequency of the target terminal for actually requesting the target system information in a second time window.
In this step, after obtaining the predicted number of times that the target terminal requests the target system information in the second time window, a second number of times that all the target terminals actually request the target system information in the second time window may be obtained, for example, in the second time window, the number of times that the target terminal a requests the target system information is 50 times, the number of times that the target terminal B requests the target system information is 30 times, the number of times that the target terminal C requests the target system information is 60 times, and the number of times that the target terminal D requests the target system information is 20 times, and a total number of times that all the terminals request the target system information in the second time window, that is, the second number of times of requests is 160 times may be obtained.
S206, acquiring the difference value between the request times and the second request times.
And S207, if the difference value is larger than or equal to the preset difference value threshold value, updating the preset label weight to obtain a new preset label weight.
The new preset label weight may be used to predict the number of times that the target terminal requests the target system information in a next time window of the second time window, that is, a third time window.
In this step, if the difference is greater than or equal to the preset difference threshold, which indicates that the accuracy of the predicted number of times that the target terminal requests the target system information in the second time window is low, the preset tag weight may be adjusted by an existing neural network algorithm according to the difference, for example, the preset tag weight may be adjusted by a Back Propagation (BP) neural network, and for example, the preset tag weight may be continuously adjusted by Back Propagation, so that the sum of squares of errors of the difference between the second number of times and the predicted number of times that the target terminal requests the target system information according to the adjusted preset tag weight is minimum.
After obtaining a new preset tag weight (first preset tag weight), predicting a first predicted request number of times that the target terminal requests the target system information in a third time window according to the first preset tag weight, obtaining a first actual request number of times that the target terminal requests the target system information in the third time window, then obtaining a difference value between the first predicted request number of times and the first actual request number of times, if the difference value is greater than or equal to a preset difference threshold, continuing to adjust the first preset tag weight to obtain a second preset tag weight, predicting a second predicted request number of times that the target terminal requests the target system information in a next time window of the third time window, namely a fourth time window, according to the second preset tag weight, and obtaining a second actual request number of times that the target terminal requests the target system information in the fourth time window, and then, obtaining a difference value between the second prediction request times and the second actual request times, if the difference value is greater than or equal to a preset difference value threshold, continuing to adjust the second preset label weight until the difference value between the request times predicted according to the adjusted preset label weight and the actual request times is smaller than a preset difference value threshold, and the preset label weight after the adjustment is the new preset label weight.
It should be noted that, when the preset tag weight is optimized through the neural network, a part of tag information may be selected from the multiple tag information, the preset tag weight corresponding to the part of tag information is continuously adjusted, the prediction request frequency is calculated according to the adjusted preset tag weight, one or more optimal tag information and the preset tag weight corresponding to the optimal tag information are determined by comparing the difference between the prediction request frequency and the actual request frequency, and then different tag information may be selected again, and more optimal tag information is determined through the above method, so that multiple optimal tag information may be determined from all the tag information, the request frequency of the target terminal requesting the target system information is predicted through the optimal tag information, for example, the terminal type and QoS level may be selected from the multiple tag information, the preset tag weights corresponding to the two tag information may be continuously adjusted, after the prediction request times are calculated according to the adjusted preset label weight, the label information with large influence on the prediction result is determined to be the optimal label information by comparing the difference value of the prediction request times and the actual request times, for example, the terminal type is more, the prediction result of the request times is greatly influenced, the QoS grade change is smaller, and the influence on the prediction result of the request times is smaller, so that the terminal type can be determined to be the optimal label information.
And S208, determining the target system information and the sending mode of the target system information according to the request times, and sending the target system information by adopting the sending mode.
In this step, after obtaining the new preset tag weight, the number of times that the target terminal requests the target system information in a future time window (a next time window of the time window in which the preset tag weight is adjusted last time) may be predicted according to the new preset tag weight, and then, the sending manner of the target system information may be determined according to the number of times of the request.
If the number of times of the request is greater than or equal to a first preset threshold, adding the modified target system information to the basic system information, sending an identifier carrying the target system information in the basic system information, and sending an identifier carrying the target system information in the basic system information, for example, indicating that the basic system information includes the target system information by sending a basic system information version identifier or a model identifier, or identifying that the basic system information includes the target system information by sending a parameter including the target system information, and then sending the basic system information including the target system information by a periodic broadcast manner, and sending the identifier for sending the target system information and resource location information corresponding to the target system information in the basic system information; if the request times are less than a first preset threshold and greater than or equal to a second preset threshold, target system information can be sent in a broadcasting mode, and an identifier for sending the target system information and resource position information corresponding to the target system information are sent in basic system information; if the number of the requests is smaller than a second preset threshold, the target system information may be sent in a unicast manner, for example, the target system information may be sent in a dedicated signaling manner.
The first preset threshold and the second preset threshold can be preset according to the signaling overhead of the target terminal requesting the target system information, so that the performance of the system is optimized.
By adopting the method, a plurality of label information of the target terminal is obtained, the request times of the target terminal for requesting the target system information in the second time window are predicted according to the label information, and the target system information is sent according to the request times. Therefore, the target system information can be sent in an optimal mode, good compromise between the cost of sending the target system information by the network equipment and the cost of requesting the target system information by the target terminal is achieved, the overall cost of the system is reduced, the performance of the system is improved, furthermore, the accuracy of the predicted request times of requesting the target system information by the target terminal can be improved by adjusting the preset label weight corresponding to the label information, and the obtained sending mode of the target system information is more accurate.
Fig. 3 is a schematic structural diagram of an apparatus for transmitting system information according to an embodiment of the present disclosure, and as shown in fig. 3, the apparatus includes:
a tag information obtaining module 301, configured to obtain multiple tag information of a target terminal, where the target terminal is a terminal that requests target system information from a network device in a first time window;
a predicting module 302, configured to predict, according to the tag information, a number of times that the target terminal requests the target system information in a second time window;
a sending module 303, configured to determine the target system information and a sending method of the target system information according to the number of times of the request, and send the target system information by using the sending method.
Optionally, the prediction module 302 is specifically configured to: acquiring a preset label weight corresponding to each label information; acquiring a terminal corresponding to each tag information, and requesting a network device for a first request frequency of target system information in a first time window; and predicting the request times of the target terminal for requesting the target system information in the second time window according to the first request times and the preset label weight.
Optionally, the prediction module 302 is further configured to:
the number of requests is obtained by the following formula:
wherein, Y est Number of requests, N number of tag information, T j Is the first request times corresponding to the jth label information, W j And presetting label weight corresponding to the jth label information.
Optionally, as shown in fig. 4, the apparatus further includes: a request number obtaining module 304, configured to obtain a second request number of times that the target terminal actually requests the target system information in a second time window; an updating module 305, configured to update the preset tag weight to obtain a new preset tag weight if a difference between the request times and the second request times is greater than or equal to a preset difference threshold, where the new preset tag weight is used to predict the request times of the target terminal for requesting the target system information in a next time window of the second time window.
Optionally, the sending module 303 is specifically configured to: if the request times are larger than or equal to a first preset threshold value, adding the target system information to the basic system information, sending an identifier bearing the target system information in the basic system information, and periodically broadcasting the basic system information containing the target system information, wherein the basic system information comprises the identifier of the target system information and resource position information corresponding to the target system information; or if the request times are less than a first preset threshold and greater than or equal to a second preset threshold, sending the target system information in a broadcasting mode, and sending an identifier for sending the target system information and resource position information corresponding to the target system information in the basic system information; or, if the request times are less than the second preset threshold, sending the target system information in a unicast mode.
Optionally, the tag information obtaining module 301 is specifically configured to: acquiring label information from a target terminal; or, obtaining tag information from the network device; or, the label information is obtained from the network management equipment.
Optionally, the tag information obtaining module 301 is further configured to: sending a label request message to the network management equipment, wherein the label request message is used for requesting label information corresponding to a target terminal; and receiving a response message returned by the network management equipment according to the label request message, wherein the response message comprises label information.
Optionally, the tag information includes one or more of an identifier of the target terminal, a terminal type, a moving speed, a quality of service QoS class, a transmission power, a reception power for a downlink reference signal/synchronization signal/channel state indication signal of a network device, and location information.
Through the device, a plurality of label information of the target terminal is obtained, the request times of the target terminal for requesting the target system information in the second time window are predicted according to the label information, and the target system information is sent according to the request times. Therefore, the target system information can be sent in an optimal mode, so that good compromise between the cost of issuing the target system information by the network equipment and the cost of requesting the target system information by the target terminal is realized, the overall cost of the system is reduced, and the performance of the system is improved.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 5 is a block diagram of a network device 500 provided by an embodiment of the present disclosure. For example, network device 500 may be provided as a server. Referring to fig. 5, the network device 500 includes a processor 522, which may be one or more in number, and a memory 532 for storing computer programs executable by the processor 522. The computer programs stored in memory 532 may include one or more modules that each correspond to a set of instructions. Further, the processor 522 may be configured to execute the computer program to perform the above-described method of transmitting system information.
Additionally, the network device 500 may also include a power component 526 and a communication component 550, the power component 526 may be configured to perform power management of the network device 500, and the communication component 550 may be configured to enable communication, e.g., wired or wireless communication, of the network device 500. In addition, the network device 500 may also include input/output (I/O) interfaces 558. The network device 500 may operate based on an operating system stored in memory 532, such as Windows Server, Mac OS XTM, UnixTM, Linux, etc.
In another exemplary embodiment, there is also provided a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the above-described method of transmitting system information. For example, the computer readable storage medium may be the memory 532 described above including program instructions that are executable by the processor 522 of the network device 500 to perform the method of transmitting system information described above.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned method of transmitting system information when executed by the programmable apparatus.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (14)
1. A method for transmitting system information, the method comprising:
acquiring a plurality of label information of a target terminal, wherein the target terminal is a terminal which requests target system information from network equipment in a first time window;
predicting the number of times of the target terminal requesting the target system information in a second time window according to the label information;
determining the target system information and the sending mode of the target system information according to the request times, and sending the target system information by adopting the sending mode;
the predicting, according to the tag information, the number of times that the target terminal requests the target system information within a second time window includes:
acquiring a preset label weight corresponding to each label information;
acquiring a terminal corresponding to each tag information, and requesting the network equipment for a first request time of the target system information in the first time window;
predicting the number of times of requests of the target terminal for the target system information in the second time window according to the first request number of times and the preset label weight;
predicting the number of times of requests of the target terminal for requesting the target system information in the second time window according to the first number of times of requests and the preset label weight includes:
the number of requests is obtained by the following formula:
wherein, Y est For the number of requests, N is the number of the tag information, T j The number of the first requests corresponding to the jth label information, W j And the preset label weight corresponding to the jth label information.
2. The method of claim 1, wherein after determining the target system information and the sending method of the target system information according to the number of requests and sending the target system information in the sending method, the method further comprises:
acquiring a second request frequency of the target terminal for actually requesting the target system information in the second time window;
and if the difference value between the request times and the second request times is larger than or equal to a preset difference value threshold, updating the preset label weight to obtain a new preset label weight, wherein the new preset label weight is used for predicting the request times of the target terminal for requesting the target system information in a next time window of the second time window.
3. The method of claim 1, wherein the determining the target system information and the sending method of the target system information according to the number of requests, and sending the target system information in the sending method comprises:
if the request times are greater than or equal to a first preset threshold value, adding the target system information to basic system information, sending an identifier bearing the target system information in the basic system information, and periodically broadcasting the basic system information containing the target system information, wherein the basic system information comprises the identifier of the target system information and resource position information corresponding to the target system information; or,
if the request times are less than the first preset threshold and greater than or equal to a second preset threshold, sending the target system information in a broadcasting mode, and sending an identifier for sending the target system information and resource position information corresponding to the target system information in the basic system information; or,
and if the request times are smaller than the second preset threshold value, sending the target system information in a unicast mode.
4. The method of claim 1, wherein the obtaining the plurality of tag information of the target terminal comprises:
acquiring the label information from the target terminal; or,
obtaining the tag information from the network device; or,
and acquiring the label information from the network management equipment.
5. The method of claim 4, wherein the obtaining the tag information from the network management device comprises:
sending a tag request message to the network management equipment, wherein the tag request message is used for requesting tag information corresponding to the target terminal;
and receiving a response message returned by the network management equipment according to the label request message, wherein the response message comprises the label information.
6. The method according to any of claims 1 to 5, wherein the tag information comprises one or more of identification of the target terminal, terminal type, moving speed, quality of service QoS level, transmission power, reception power of downlink reference signal/synchronization signal/channel status indication signal to network equipment, and location information.
7. An apparatus for transmitting system information, the apparatus comprising:
the system comprises a tag information acquisition module, a tag information acquisition module and a tag information processing module, wherein the tag information acquisition module is used for acquiring a plurality of tag information of a target terminal, and the target terminal is a terminal which requests target system information from network equipment in a first time window;
the prediction module is used for predicting the request times of the target terminal for requesting the target system information in a second time window according to the label information;
the sending module is used for determining the target system information and the sending mode of the target system information according to the request times and sending the target system information by adopting the sending mode;
the prediction module is specifically configured to:
acquiring a preset label weight corresponding to each label information;
acquiring a terminal corresponding to each tag information, and requesting the network equipment for a first request time of the target system information in the first time window;
predicting the number of times of requests of the target terminal for the target system information in the second time window according to the first request number of times and the preset label weight;
the prediction module is further configured to:
the number of requests is obtained by the following formula:
wherein, Y est For the number of requests, N is the number of the tag information, T j The number of the first requests corresponding to the jth label information, W j And the preset label weight corresponding to the jth label information.
8. The apparatus of claim 7, further comprising:
a request frequency acquiring module, configured to acquire a second request frequency for actually requesting the target system information by the target terminal in the second time window;
and the updating module is used for updating the preset label weight to obtain a new preset label weight if the difference value between the request times and the second request times is greater than or equal to a preset difference value threshold, wherein the new preset label weight is used for predicting the request times of the target terminal for requesting the target system information in the next time window of the second time window.
9. The apparatus of claim 7, wherein the sending module is specifically configured to:
if the request times are greater than or equal to a first preset threshold value, adding the target system information to basic system information, sending an identifier bearing the target system information in the basic system information, and periodically broadcasting the basic system information containing the target system information, wherein the basic system information comprises the identifier of the target system information and resource position information corresponding to the target system information; or,
if the request times are smaller than the first preset threshold and larger than or equal to a second preset threshold, sending the target system information in a broadcasting mode, and sending an identifier for sending the target system information and resource position information corresponding to the target system information in the basic system information; or,
and if the request times are smaller than the second preset threshold value, sending the target system information in a unicast mode.
10. The apparatus according to claim 7, wherein the tag information obtaining module is specifically configured to:
acquiring the label information from the target terminal; or,
obtaining the tag information from the network device; or,
and acquiring the label information from the network management equipment.
11. The apparatus of claim 10, wherein the tag information obtaining module is further configured to:
sending a tag request message to the network management equipment, wherein the tag request message is used for requesting tag information corresponding to the target terminal;
and receiving a response message returned by the network management equipment according to the label request message, wherein the response message comprises the label information.
12. The apparatus according to any of claims 7 to 11, wherein the tag information comprises one or more of identification of the target terminal, terminal type, moving speed, quality of service QoS class, transmission power, reception power of downlink reference signal/synchronization signal/channel status indication signal to network device, and location information.
13. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
14. A network device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 6.
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