CN117729647A

CN117729647A - Method, device, base station and medium for establishing distribution network communication

Info

Publication number: CN117729647A
Application number: CN202311812123.0A
Authority: CN
Inventors: 张明明; 胡晋; 林贵佳; 郭红伟; 李云成; 李文俊; 黄振科; 郭海波; 张明剑; 肖诚华; 汪志豪; 张磊; 陈源丰; 冯如枫; 张万池
Original assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Priority date: 2023-12-26
Filing date: 2023-12-26
Publication date: 2024-03-19

Abstract

The invention discloses a method, a device, a base station and a medium for establishing distribution network communication, wherein the method is applied to the base station, a distribution network communication request of a first user terminal is responded, the channel quality between the first user terminal and a second user terminal is detected, the distribution network communication request is used for the first user terminal to request to establish the distribution network communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relation with the base station; and if the channel quality meets the preset communication requirement, establishing a distribution network communication session based on user terminal information so that the first user terminal communicates with the second user terminal through the distribution network communication session. The method establishes stable and reliable distribution network communication for two user terminals connected with the cellular network, realizes direct connection communication of the user terminals, avoids the connection only depending on the cellular network, is beneficial to reducing the load of the base station and improves the number of the loaded user terminals.

Description

Method, device, base station and medium for establishing distribution network communication

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a base station, and a medium for establishing distribution network communications.

Background

The application of the mobile cellular communication system in the mountain area environment has a certain limitation, such as the severe environment in the mountain area affects the transmission of communication signals, so that the load of the base station is increased, the communication cost is increased, and meanwhile, the continuously increased communication user equipment cannot be satisfied.

In order to solve the above problems, in the existing solutions, on one hand, the number of huge communication users is accommodated by limiting the data transmission rate, but more energy efficiency of the communication system is sacrificed, and transmission delay and energy consumption are increased; on the other hand, more communication requirements are met by deploying communication cells on a large scale, however, the scheme increases communication cost and has poor practicability.

Disclosure of Invention

The invention provides a method, a device, a base station and a medium for establishing distribution network communication, which are used for reducing the load of the base station and improving the number of on-load user terminals.

According to an aspect of the present invention, there is provided a method for establishing a distribution network communication, applied to a base station, the method including:

detecting channel quality between a first user terminal and a second user terminal in response to a distribution network communication request of the first user terminal, wherein the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relationship with the base station;

And if the channel quality meets the preset communication requirement, establishing a distribution network communication session based on user terminal information so that the first user terminal communicates with the second user terminal through the distribution network communication session.

According to another aspect of the present invention, there is provided an apparatus for establishing a distribution network communication, configured in a base station, the apparatus comprising:

the system comprises a channel detection module, a base station and a network allocation module, wherein the channel detection module is used for responding to a network allocation communication request of a first user terminal and detecting channel quality between the first user terminal and a second user terminal, the network allocation communication request is used for the first user terminal to request to establish network allocation communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relation with the base station;

and the establishing module is used for establishing a distribution network communication session based on user terminal information if the channel quality meets the preset communication requirement so as to enable the first user terminal to communicate with the second user terminal through the distribution network communication session.

According to another aspect of the present invention, there is provided a base station comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of establishing a distribution network communication according to any of the embodiments of the present invention.

According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement a method for establishing a distribution network communication according to any embodiment of the present invention when executed.

The embodiment of the invention provides a method, a device, a base station and a medium for establishing distribution network communication, wherein the method is applied to the base station and comprises the following steps: detecting channel quality between a first user terminal and a second user terminal in response to a distribution network communication request of the first user terminal, wherein the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relationship with the base station; and if the channel quality meets the preset communication requirement, establishing a distribution network communication session based on user terminal information so that the first user terminal communicates with the second user terminal through the distribution network communication session. By using the technical scheme, the stable and reliable distribution network communication is established for two user terminals connected with the cellular network by detecting the channel quality between the user terminals, so that the direct communication of the user terminals is realized, the connection only depending on the cellular network is avoided, the load of a base station is reduced, and the number of the on-load user terminals is increased.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flowchart of a method for establishing a distribution network communication according to a first embodiment of the present invention;

fig. 2 is a flowchart of a method for establishing a distribution network communication according to a second embodiment of the present invention;

fig. 3 is a flowchart of another method for establishing a distribution network communication according to the second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a device for establishing distribution network communication according to the third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base station according to a fourth embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Fig. 1 is a flowchart of a method for establishing a network communication according to a first embodiment of the present invention, where the method may be performed by a network communication establishing device, and the network communication establishing device may be implemented in hardware and/or software, and the network communication establishing device may be configured in a base station.

It can be considered that currently, the mountain area mainly uses a conventional mobile cellular communication system, i.e. in the mobile cellular communication system, a signal coverage area is divided into individual cells, which are generally hexagonal cells, a base station BS is configured in each cell, and user terminals in the cells directly perform data transmission with the base station BS to realize communication.

However, the application of the mobile cellular communication system in the mountain area environment has a certain limitation, and the hilly land feature, trees and vegetation of the mountain area can obstruct the transmission of communication signals, so that the load of the base station is increased, and the communication cost is increased. On the other hand, with the popularization of intelligent terminal devices, the number of communication users in mountainous areas is greatly increased, and there is a greater demand for communication network resources, but a communication system employing only a single cellular communication cannot provide enough spectrum resources to satisfy the continuously increasing communication user devices.

The existing method for establishing the distribution network communication mainly solves the problems in two ways, namely, the method for limiting the data transmission rate accommodates huge communication user quantity, but the method can sacrifice more energy efficiency of a communication system, increase transmission delay and increase energy consumption; and secondly, the communication small cells are deployed in a large scale to reduce the communication radius of unit cells, so that the number of the communication cells is increased, the deployment density of the communication cells is increased, the frequency spectrum factors are expanded, and the communication requirements are met.

Based on the above, the embodiment of the invention provides a method for establishing distribution network communication, which is applicable to mountain environments, and is used for establishing distribution network communication session between user terminals in a cellular network, so that the load of a base station is reduced, and the frequency spectrum utilization rate and the number of on-load terminals are improved. As shown in fig. 1, the method includes:

s110, detecting channel quality between a first user terminal and a second user terminal in response to a distribution network communication request of the first user terminal, wherein the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have cellular communication relation with the base station.

The network allocation communication request may be used for the first user terminal to request to establish network allocation communication with the second user terminal, where the first user terminal and the second user terminal may be considered as user terminals having cellular communication relationships with the base station, for example, the first user terminal and the second user terminal are both connected to the base station, and the first user terminal and the second user terminal may be located in the same communication cell or may be located in different communication cells. In this embodiment, the first user terminal and the second user terminal are only used to distinguish different user terminals, which is not limited in this embodiment.

Specifically, in this embodiment, after receiving a network allocation communication request of a first user terminal, the channel quality between the first user terminal and a second user terminal may be detected in response to the network allocation communication request, so as to determine whether to establish a subsequent network allocation communication session. The embodiment does not limit a specific means for detecting the channel quality, for example, the channel quality between the first user terminal and the second user terminal can be directly detected by a specific detection device, or the specific channel quality can be measured by a parameter of a signal between the two user terminals.

In one embodiment, the detecting the channel quality between the first user terminal and the second user terminal includes:

transmitting a control instruction to the first user terminal, wherein the control instruction is used for instructing the first user terminal to transmit a detection signal to the second user terminal;

and receiving the target signal strength sent by the second user terminal, detecting the channel quality between the first user terminal and the second user terminal based on the target signal strength and a signal strength threshold, wherein the target signal strength is obtained by measuring the received detection signal by the second user terminal.

The control instruction may be configured to instruct the first user terminal to send a probe signal to the second user terminal; the target signal strength may refer to the strength of the probe signal received by the second user terminal, e.g. may be obtained by the second user terminal by measuring the probe signal. The signal strength threshold may be a critical value of signal strength for detecting channel quality between the first user terminal and the second user terminal, e.g. the signal strength threshold may be determined by an empirical value.

In one embodiment, the signal strength of the signal between two ues may be used to detect the channel quality, for example, the base station may first send a control command to the first ue to indicate that the first ue may send a probe signal to the second ue, and after the first ue receives the control command, may send the probe signal to the second ue; the second ue may further receive the probe signal and measure the received probe signal to determine a target signal strength of the probe signal, so that the second ue may return the determined target signal strength to the base station to detect the channel quality therebetween, e.g., may detect the channel quality between the first ue and the second ue based on the target signal strength and the signal strength threshold.

And S120, if the channel quality meets the preset communication requirement, establishing a distribution network communication session based on user terminal information so that the first user terminal communicates with the second user terminal through the distribution network communication session.

The preset communication requirement may be a preset communication requirement, which is used for measuring whether to establish a distribution network communication session between the first user terminal and the second user terminal, and the specific content of the preset communication requirement is not limited, for example, the target signal strength may be greater than or equal to a signal strength threshold value. The user terminal information may be understood as information about the first user terminal and/or the second user terminal, e.g. may comprise a terminal location, etc.

Specifically, after the channel quality between the first user terminal and the second user terminal is detected, whether the detected channel quality meets the preset communication requirement or not can be further judged, and different subsequent steps are executed according to different judging results.

The first embodiment of the invention provides a method for establishing distribution network communication, which is applied to a base station and comprises the following steps: detecting channel quality between a first user terminal and a second user terminal in response to a distribution network communication request of the first user terminal, wherein the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relationship with the base station; and if the channel quality meets the preset communication requirement, establishing a distribution network communication session based on user terminal information so that the first user terminal communicates with the second user terminal through the distribution network communication session. By using the method, the stable and reliable distribution network communication is established for two user terminals connected with the cellular network by detecting the channel quality between the user terminals, so that the direct communication of the user terminals is realized, the connection only depending on the cellular network is avoided, the load of a base station is reduced, and the number of the on-load user terminals is increased.

In one embodiment, before said detecting the channel quality between the first user terminal and the second user terminal, further comprising:

Detecting whether the first user terminal and the second user terminal are located in the same communication cell;

the detecting the channel quality between the first user terminal and the second user terminal includes:

and if the first user terminal and the second user terminal are positioned in the same communication cell, detecting the channel quality between the first user terminal and the second user terminal.

In one embodiment, the premise of establishing the distribution network communication session may be that the first user terminal and the second user terminal need to be located in the same communication cell, so before detecting the channel quality between the first user terminal and the second user terminal, whether the first user terminal and the second user terminal are located in the same communication cell may be detected, and different steps are executed according to different detection results, where the means for detecting whether the first user terminal and the second user terminal are located in the same communication cell is not limited, for example, detection may be performed according to the terminal identifier of the user terminal.

Specifically, when the detection result indicates that the first user terminal and the second user terminal are located in the same communication cell, the subsequent detection of the channel quality can be performed, and conversely, when the detection result indicates that the first user terminal and the second user terminal are not located in the same communication cell, the establishment flow of the distribution network communication can be exited, and no operation is performed.

In one embodiment, before the detecting the channel quality between the first user terminal and the second user terminal in response to the network allocation communication request of the first user terminal, the method further comprises:

and assisting in configuring a search discovery function of at least one user terminal, wherein the first user terminal and the second user terminal have a cellular communication relationship with the base station and have a function of mutual search discovery.

In one embodiment, the base station may perform auxiliary configuration on the search discovery function of at least one user terminal in advance, so as to ensure that the first user terminal and the second user terminal have a function of mutual search discovery, so that when the first user terminal searches for and discovers the second user terminal, an operation of sending the network allocation communication request may be performed. The embodiment does not limit the manner of configuring the search discovery function in an auxiliary manner, for example, different user terminals may correspond to different configuration manners.

Example two

Fig. 2 is a flowchart of a method for establishing a distribution network communication according to a second embodiment of the present invention, where the second embodiment is optimized based on the foregoing embodiments. In this embodiment, the user terminal information includes a terminal communication requirement and a terminal position, and establishing the distribution network communication session based on the user terminal information is further specified as: scheduling a target spectrum resource required by the distribution network communication based on the terminal communication requirement and the terminal position; and determining a target communication mode of the distribution network communication according to the occupation state of the target spectrum resource, so as to establish a distribution network communication session based on the target communication mode and the target spectrum resource.

For details not yet described in detail in this embodiment, refer to embodiment one.

As shown in fig. 2, the method includes:

s210, detecting channel quality between a first user terminal and a second user terminal in response to a distribution network communication request of the first user terminal, wherein the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have cellular communication relation with the base station.

S220, if the channel quality meets the preset communication requirement, scheduling the target spectrum resources required by the distribution network communication based on the terminal communication requirement and the terminal position.

In this embodiment, the user terminal information may include a terminal communication requirement and a terminal position, where the terminal communication requirement may refer to a communication requirement situation of the first user terminal and/or the second user terminal, for example, communication service types and requirement situations of different user terminals may be different, for example, mobile terminals such as smart phones, tablet computers, etc. need to implement high-speed data transmission and real-time communication, and internet of things terminals such as smart home, industrial control, etc. need to implement low-power consumption and long-distance wireless communication. Therefore, the spectrum resources can be reasonably allocated and utilized according to different communication demands, so as to ensure the normal operation and user experience of various communication services.

On the other hand, in wireless communication, factors such as signal propagation characteristics, interference conditions, and user distribution in different areas and different buildings affect the utilization of spectrum resources. The terminal position can help the system to better know the distribution and signal propagation characteristics of the user terminal, so that the distribution and utilization of spectrum resources are optimized, and the performance and efficiency of the communication system are improved. For example, in a central area of a city, a high frequency band can be used for communication due to dense buildings, and in a rural area, a low frequency band can be used for communication due to sparse buildings and long signal propagation distance.

The target spectrum resource may then be understood as a spectrum resource scheduled for the distribution network communication.

Specifically, if the channel quality between the first user terminal and the second user terminal meets the preset communication requirement, the target spectrum resource required by the distribution network communication can be scheduled based on the terminal communication requirement and the terminal position, so as to provide the resource required by the establishment of the subsequent distribution network communication session.

S230, determining a target communication mode of the distribution network communication according to the occupation state of the target spectrum resource, so as to establish a distribution network communication session based on the target communication mode and the target spectrum resource.

The target communication mode may be considered as a communication mode of the distribution network communication, for example, the target communication mode may be a dedicated mode, or may be a multiplexing mode, and the multiplexing mode may be further specifically classified into a one-to-one mode, a one-to-many mode, and a many-to-many mode.

The one-to-one mode can be that a single cellular communication user equipment is in one-to-one correspondence with a single pair of target user terminals, and the system spectrum resources occupied by the cellular communication user equipment are only multiplexed by the single pair of target user terminals; and only one multiplexing subcarrier spectrum resource is allocated to each pair of target user terminals, namely, each subcarrier used for communication in the system can only bear one pair of target user terminals (namely, distribution network communication user equipment such as a first user terminal and/or a second user terminal) and one cellular communication user equipment at the same time, so that interference generated between all devices in the communication system is in one-to-one correspondence, and the interference generated between the devices in the mode is relatively small.

The one-to-many mode may be that a single cellular communication user equipment corresponds to a plurality of pairs of target user terminals, the system spectrum resources occupied by the cellular communication user equipment are multiplexed by the plurality of pairs of target user terminals at the same time, and each pair of target user terminals only multiplexes the system spectrum resources occupied by the single cellular communication user equipment; in the mode, interference exists between the target user terminal and the cellular communication user equipment, a plurality of distribution network user equipment multiplexing the same subcarrier generates interference to the cellular communication user equipment, and certain interference can be generated between the equipment in the mode.

The many-to-many mode may be that a single cellular communication ue corresponds to a plurality of pairs of target ues, the system spectrum resources occupied by the cellular communication ue are multiplexed by the plurality of pairs of target ues at the same time, and each pair of target ues may multiplex the system spectrum resources occupied by the plurality of cellular communication ues; in the mode, the spectrum utilization rate of the network system can be greatly improved, but communication interference exists between the cellular user equipment and the base station, between two target user terminals of the distribution network communication, and between the target user terminals of the distribution network communication and the cellular communication user equipment at the upper layer of the target user terminals, and the link interference is larger.

In this step, a target communication mode of the distribution network communication may be determined according to an occupancy state of the scheduled target spectrum resource. Further, in order to ensure the stability of the overall communication of the system, it is necessary to analyze the link interference, so as to ensure the stability of the communication of the system and the small interference, and simultaneously, to increase the utilization rate of the spectrum resources of the system as much as possible.

In one embodiment, the determining the target communication mode of the distribution network communication according to the occupancy state of the target spectrum resource includes:

and if the target frequency spectrum resource is in an idle state, determining that the target communication mode of the distribution network communication is a special mode.

In one embodiment, if the scheduled target spectrum resource is in an idle state, the target communication mode of the distribution network communication may be determined to be a dedicated mode, i.e., the target spectrum resource may be dedicated to performing the distribution network communication, such that a distribution network communication session may be established based on the target communication mode and the target spectrum resource, such that the first user terminal may communicate with the second user terminal through the distribution network communication session.

if the target spectrum resource is in an occupied state, calculating the link signal-to-noise ratio of the first user terminal and the second user terminal;

and determining a target communication mode of the distribution network communication based on a signal-to-noise ratio margin, wherein the signal-to-noise ratio margin is the difference value between the signal-to-noise ratio of the link and a signal-to-noise ratio threshold.

The snr margin may be a difference between a snr of the link and a snr threshold, and the snr threshold may be a snr threshold, specifically, may be a snr threshold that may affect normal communications of the link, and may be obtained according to actual measurement in an actual deployment scenario.

In one embodiment, if the scheduled target spectrum resource is in an occupied state, the target communication mode of the network communication needs to be determined by calculating a signal-to-noise ratio margin, for example, the signal-to-noise ratio of a link between the first user terminal and the second user terminal may be calculated first, then the target communication mode of the network communication may be determined by calculating the signal-to-noise ratio margin, for example, the target communication mode of the network communication may be determined according to a specific size of the signal-to-noise ratio margin, a specific determination method is not limited, for example, the target communication mode may be determined by comparing with a margin threshold, the target communication mode may be determined by other manners, and the target communication mode may be obtained.

Specifically, the calculated link signal-to-noise ratio may be calculated according to the communication link condition by dividing into an uplink communication link and a downlink communication link, and in the uplink communication link, the link signal-to-noise ratio may be calculated according to the following formula: such as SINR _{On t} ＝SINR _c1 +SINR _d1 ， Wherein SINR _c1 Representing signal-to-noise ratio, SINR, of cellular communication user equipment in uplink communication link _d1 Representing the signal-to-noise ratio, P, of a target user terminal in an uplink communication link _C,BS Representing transmission power of cellular communication user equipment to base station, P _D,C Representing a transmission power of the cellular communication user equipment to the target user terminal; g _C,BS Representing channel gain between cellular communication user equipment and base station, G _D,BS Indicating the channel gain between the target user terminal and the base station, G _D Representing channel gain between target user terminals, G _D,C Representing channel gain between cellular communication user equipment and target user terminal, N ₀ Is the power spectral density of the noise.

On the other hand, in the downlink communication link, the link signal-to-noise ratio may be calculated as follows: SINR (Signal to interference plus noise ratio) _{At t} ＝SINR _c2 +SINR _d2 ，Wherein SINR _c2 Representing signal-to-noise ratio, SINR, of cellular communication user equipment in downlink communication link _d2 Representing the signal-to-noise ratio, P, of a target user terminal in a downlink communication link _BS,C Representing the transmission power of a base station to a cellular communication user equipment, P _BS,D Representing the transmission power of a base station to a target user terminal, P _D Representing transmission power between target user terminals; g _BS,C Indicating channel gain between base station and cellular communication user equipment, G _BS,D Indicating channel gain between base station and target user terminal, G _D Representing channel gain between target user terminals, G _C,D Representing the channel gain between the target user terminal and the cellular communication user equipment.

In one embodiment, the determining the target communication mode of the distribution network communication based on the signal-to-noise ratio margin includes:

if the signal-to-noise ratio margin is smaller than or equal to a first margin threshold, determining that a target communication mode of the distribution network communication is a one-to-one multiplexing mode;

if the signal-to-noise ratio margin is larger than the first margin threshold and smaller than the second margin threshold, determining that the target communication mode of the distribution network communication is a one-to-many multiplexing mode;

and if the signal-to-noise ratio margin is greater than or equal to a second margin threshold, determining that the target communication mode of the distribution network communication is a many-to-many multiplexing mode, wherein the first margin threshold is smaller than the second margin threshold.

In this embodiment, the first margin threshold may be understood as the minimum critical value of the snr margin, the second margin threshold may be understood as the maximum critical value of the snr margin, and the specific value may be determined by an empirical value.

Specifically, the signal-to-noise ratio margin can be compared with the first margin threshold and the second margin threshold to determine the target communication mode of the distribution network communication, and if the signal-to-noise ratio margin is smaller than or equal to the first margin threshold, which indicates that the interference which can be accommodated by the link is smaller, the target communication mode of the distribution network communication can be determined to be a one-to-one multiplexing mode; if the signal-to-noise ratio margin is larger than the first margin threshold and smaller than the second margin threshold, which means that the link can accommodate certain interference, the target communication mode of the distribution network communication can be determined to be a one-to-many multiplexing mode; if the signal-to-noise ratio margin is greater than or equal to the second margin threshold, the link can accommodate larger interference, and the target communication mode of the distribution network communication can be determined to be a many-to-many multiplexing mode.

The second embodiment of the present invention provides a method for establishing distribution network communication, where the method is applied to a base station, and includes: detecting channel quality between a first user terminal and a second user terminal in response to a distribution network communication request of the first user terminal, wherein the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relationship with the base station; if the channel quality meets the preset communication requirement, scheduling a target spectrum resource required by the distribution network communication based on the terminal communication requirement and the terminal position; and determining a target communication mode of the distribution network communication according to the occupation state of the target spectrum resource, so as to establish a distribution network communication session based on the target communication mode and the target spectrum resource. By utilizing the method, the network allocation communication is carried out by configuring a special mode or a multiplexing mode for the user terminal according to the occupation state of the scheduled target frequency spectrum resource, so that the frequency spectrum utilization rate of the system is improved, and the number of the on-load user terminals is further improved.

Fig. 3 is a flowchart of another method for establishing communications in a distribution network according to a second embodiment of the present invention, as shown in fig. 3, first, a base station may determine that there are at least two target user terminals that have a cellular communication relationship with the base station and can be found by searching each other. For example, before the distribution network establishes a communication link session, it is necessary to complete the discovery of the user equipment of the distribution network, that is, the discovery of the target user terminals, and complete the mutual search between the target user terminals in the distribution network communication cellular network, so that the connection between the user terminals of the distribution network can be established.

The search discovery process can be completed by the assistance of the base station, the search discovery types of the user terminal are mainly divided into two types of restricted discovery and open discovery, wherein the restricted discovery is used for limiting the discovery of the communication user equipment, and the restricted discovery can be discovered by other communication user equipment if and only if the user equipment has the searched authority. The method can ensure the safety of the communication user equipment, refuses the access of the malignant node, and greatly ensures the safety of the user equipment. Open discovery, i.e. the user equipment is in an open discovery mode, can be directly discovered and connected by surrounding user equipment. Compared with the former type, the mode is simple to operate and easy to realize, but cannot ensure the protection of privacy conditions of communication users, and reduces the safety of user equipment. The distribution network communication network is closely related to the cellular network, the whole process of discovery of the distribution network equipment is not separated from the control of the base station BS, and the control mode of the base station can be divided into two cases.

Then, one of the target user terminals (e.g., the first user terminal) may initiate a request for establishing a network communication with the other target user terminal (e.g., the second user terminal) (i.e., the network communication request of the first user terminal), and the base station may detect whether the two target user terminals are in the same communication cell (i.e., detect whether the first user terminal and the second user terminal are in the same communication cell) in response to the request of the target user terminal, if so, the next step is entered, otherwise, the process is terminated and the two target user terminals remain in cellular communication with the base station. According to the step, the target user terminals meeting the distribution network communication conditions are screened, so that the two target user terminals can be ensured to be in the same communication cell.

Furthermore, the channel quality between the two target user terminals can be detected, if the channel quality meets the communication requirement, the next step can be carried out, otherwise, the process can be terminated and the two target user terminals can be kept in cellular communication with the base station.

Specifically, the base station may send a control instruction, so that the target ue initiating the network configuration communication request sends a detection signal to another target ue (that is, sends a control instruction to the first ue, where the control instruction is used to instruct the first ue to send the detection signal to the second ue), and after the other target ue receives the detection signal, the other target ue may measure and obtain a received signal strength RSSI of the detection signal and report the received signal strength RSSI to the base station; the base station is preset with a signal strength threshold related to the channel quality between two target user terminals, the base station can compare the received signal strength RSSI with the preset signal strength threshold in a numerical mode (namely, the base station receives the target signal strength sent by the second user terminal and detects the channel quality between the first user terminal and the second user terminal based on the target signal strength and the signal strength threshold, the target signal strength is obtained by measuring the received detection signal by the second user terminal), and when the received signal strength RSSI is greater than or equal to the signal strength threshold, the base station can judge that the channel quality meets the communication requirement, otherwise, the base station can judge that the received signal strength does not meet the communication requirement. The step can ensure that the channel quality between the two user terminals for establishing the distribution network communication meets the basic communication requirement, and ensure the stability of the distribution network communication.

Then, the base station can schedule the needed communication spectrum resources for the two target user terminals according to the communication requirements and the position information of the two target user terminals, and allocate a communication working mode according to the system spectrum resources (namely, schedule the target spectrum resources needed by the distribution network communication based on the terminal communication requirements and the terminal position, and determine the target communication mode of the distribution network communication according to the occupation state of the target spectrum resources so as to establish the distribution network communication session based on the target communication mode and the target spectrum resources).

Specifically, the communication working mode may include a dedicated mode and a multiplexing mode, when idle-allocated system spectrum resources exist, the dedicated mode may be configured for two target user terminals, and the base station allocates the idle-allocated system spectrum resources to the two target user terminals for use in the network allocation for communication; when there is no idle system spectrum resource, it can indicate that the system spectrum resource in the system is occupied by cellular communication user or other target user terminals, then the multiplexing mode can be configured for two target user terminals, the base station allocates the spectrum resource to the cellular communication user equipment, and the two target user terminals multiplex the system spectrum resource of the cellular communication user equipment for network allocation and pair communication.

In this step, the base station may detect the spectrum resources of the communication system, and when idle spectrum resources exist, configure a dedicated mode for the dual-purpose user terminal, where the spectrum resources used by the user terminal in this mode are in a mutually orthogonal relationship, that is, there is no interference between the network user equipment and the cellular user equipment, so as to ensure the stability of communication (that is, if the target spectrum resources are in an idle state, it is determined that the target communication mode of the network communication is the dedicated mode). When the base station detects that the communication system does not have idle spectrum resources, a multiplexing mode can be configured for the two user terminals, the base station can allocate the spectrum resources in the system to the cellular communication user equipment, and the two target user terminals multiplex the allocated spectrum resources for communication data transmission so as to improve the utilization rate of the spectrum resources.

More specifically, the multiplexing modes of the subcarriers may specifically include a one-to-one mode, a one-to-many mode, and a many-to-many mode; according to the embodiment, one multiplexing mode can be selected according to the link signal-to-noise ratio of the target user terminal to establish the distribution network communication.

Illustratively, the base station can be preset with respect to the link signal-to-noise ratio SINR _t Signal to noise ratio threshold SINR of (v) _th When link signal-to-noise ratio SINR in link _t Greater than or equal to the signal-to-noise ratio threshold SINR _th When the link is in normal communication, the normal information transmission function of the link cannot be realized.

Can be formulated as SINR _mar ＝SINR _th -SINR _t Calculating to obtain the SINR margin _mar When the signal-to-noise ratio margin SINR _mar When the interference is larger, the link can accommodate larger interference, and normal communication can be maintained under the condition that the interference of the link is increased by a certain amplitude, otherwise, the link can accommodate smaller interference, so that the SINR can be calculated according to the signal-to-noise ratio margin _mar To select an appropriate multiplexing mode (i.e. counting if the target spectrum resource is in an occupied stateCalculating the link signal-to-noise ratio of the first user terminal and the second user terminal; and determining a target communication mode of the distribution network communication based on a signal-to-noise ratio margin, wherein the signal-to-noise ratio margin is the difference value between the signal-to-noise ratio of the link and a signal-to-noise ratio threshold value).

Specifically, a first margin threshold Mar related to the SNR margin may be preset in the base station ₁ And a second margin threshold Mar ₂ The first margin threshold is less than the second margin threshold; when SINR _mar ≤Mar ₁ When the interference which can be accommodated by the link is smaller, the multiplexing mode of the target user terminal can be configured into a one-to-one mode, and the interference generated in the link in the mode is smaller so as to ensure the stability of the whole communication of the link (namely, if the signal-to-noise ratio margin is smaller than or equal to the first margin threshold value, the target communication mode of the distribution network communication is determined to be the one-to-one multiplexing mode); when Mar ₁ ＜SINR _mar ＜Mar ₂ When the link can accommodate a certain interference, the multiplexing mode of the target user terminal can be configured into a pair of multimode, the utilization rate of the system spectrum resources is improved while the whole communication stability of the link is ensured (namely, if the signal-to-noise ratio margin is larger than the first margin threshold and smaller than the second margin threshold, the target communication mode of the distribution network communication is determined to be a one-to-many multiplexing mode); when SINR _mar ≥Mar ₂ And when the link can accommodate larger interference, the multiplexing mode of the target user terminal can be configured into a many-to-many mode so as to fully utilize the system spectrum resources (namely, if the signal-to-noise ratio margin is larger than or equal to a second margin threshold, the target communication mode of the distribution network communication is determined to be the many-to-many multiplexing mode, wherein the first margin threshold is smaller than the second margin threshold).

Finally, the two target user terminals can complete the distribution network communication link, the distribution network communication is established, the cellular communication between the two target user terminals and the base station is converted into the distribution network communication, and the data transmission is directly carried out.

As can be seen from the above description, the method for establishing distribution network communication provided by the embodiment of the present invention can establish stable and reliable distribution network communication between two user terminals of a cellular network system, so that adjacent terminal devices can perform direct communication, the communication system is prevented from relying on cellular links, and the communication system controls to allow terminal users to perform direct communication by using cell network resources without a base station to perform transfer; the method is suitable for mountain areas, is beneficial to reducing the load of the base station and improving the frequency spectrum utilization rate and the number of the loaded terminals.

In addition, the embodiment of the invention can also configure a special mode or a multiplexing mode for the user terminal to carry out network allocation communication according to the idle state of the system spectrum resources, further analyze the main signal-to-noise ratio in the uplink and the downlink, select a proper multiplexing mode according to the signal-to-noise ratio to carry out network allocation communication for the user terminal, thereby improving the spectrum utilization rate of the system, reducing the influence of the signal-to-noise ratio on the communication and improving the communication quality and the communication stability.

Example III

Fig. 4 is a schematic structural diagram of a device for establishing distribution network communication according to a third embodiment of the present invention. As shown in fig. 4, the apparatus includes:

a channel detection module 310, configured to detect a channel quality between a first user terminal and a second user terminal in response to a network allocation communication request of the first user terminal, where the network allocation communication request is used for the first user terminal to request to establish network allocation communication with the second user terminal, and the first user terminal and the second user terminal both have a cellular communication relationship with the base station;

and an establishing module 320, configured to establish a network allocation communication session based on the user terminal information if the channel quality meets a preset communication requirement, so that the first user terminal communicates with the second user terminal through the network allocation communication session.

In the device for establishing distribution network communication provided in the third embodiment of the present invention, a channel detection module is used to respond to a distribution network communication request of a first user terminal, and detect channel quality between the first user terminal and a second user terminal, where the distribution network communication request is used for the first user terminal to request to establish distribution network communication with the second user terminal, and the first user terminal and the second user terminal have a cellular communication relationship with the base station; and if the channel quality meets the preset communication requirement, a distribution network communication session is established based on the user terminal information through an establishing module, so that the first user terminal communicates with the second user terminal through the distribution network communication session. By using the device, the stable and reliable distribution network communication is established for two user terminals connected with the cellular network by detecting the channel quality between the user terminals, so that the direct communication of the user terminals is realized, the connection only depending on the cellular network is avoided, the load of a base station is reduced, and the number of the on-load user terminals is increased.

Optionally, the user terminal information includes a terminal communication requirement and a terminal position, and the establishing module includes:

The scheduling unit is used for scheduling target spectrum resources required by the distribution network communication based on the terminal communication requirement and the terminal position;

and the determining unit is used for determining a target communication mode of the distribution network communication according to the occupation state of the target spectrum resource so as to establish a distribution network communication session based on the target communication mode and the target spectrum resource.

Optionally, the determining unit is specifically configured to:

Optionally, the determining unit includes:

a calculating subunit, configured to calculate a link signal-to-noise ratio between the first user terminal and the second user terminal if the target spectrum resource is in an occupied state;

and the determining subunit is used for determining a target communication mode of the distribution network communication based on a signal-to-noise ratio margin, wherein the signal-to-noise ratio margin is the difference value between the signal-to-noise ratio of the link and a signal-to-noise ratio threshold value.

Optionally, the determining subunit is specifically configured to:

Optionally, the channel detection module is specifically configured to:

Optionally, the device for establishing distribution network communication provided in the third embodiment of the present invention further includes:

a detection module, configured to detect whether the first user terminal and the second user terminal are located in the same communication cell before the detection of the channel quality between the first user terminal and the second user terminal;

the channel detection module is specifically used for:

and the configuration module is used for assisting in configuring a search discovery function of at least one user terminal before the response to the distribution network communication request of the first user terminal detects the channel quality between the first user terminal and the second user terminal, wherein the first user terminal and the second user terminal have a cellular communication relation with the base station and have the function of mutual search discovery.

The device for establishing the distribution network communication provided by the embodiment of the invention can execute the method for establishing the distribution network communication provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

Example IV

Fig. 5 is a schematic structural diagram of a base station according to a fourth embodiment of the present invention. Base stations are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. A base station may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 5, the base station 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the base station 10 can also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

The various components in the base station 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the base station 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the method of establishing a distribution network communication.

In some embodiments, the method of establishing a distribution network communication may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the base station 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the above-described method of establishing a distribution network communication may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the method of establishing the distribution network communication in any other suitable way (e.g. by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on a base station having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or a trackball) by which a user can provide input to the base station. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A method for establishing a distribution network communication, applied to a base station, the method comprising:

2. The method of claim 1, wherein the user terminal information includes a terminal communication requirement and a terminal location, and wherein the establishing a distribution network communication session based on the user terminal information comprises:

scheduling a target spectrum resource required by the distribution network communication based on the terminal communication requirement and the terminal position;

and determining a target communication mode of the distribution network communication according to the occupation state of the target spectrum resource, so as to establish a distribution network communication session based on the target communication mode and the target spectrum resource.

3. The method according to claim 2, wherein determining the target communication mode of the distribution network communication according to the occupancy state of the target spectrum resource comprises:

4. The method according to claim 2, wherein determining the target communication mode of the distribution network communication according to the occupancy state of the target spectrum resource comprises:

5. The method of claim 4, wherein determining the target communication mode of the distribution network communication based on the signal-to-noise margin comprises:

6. The method of claim 1, wherein the detecting the channel quality between the first user terminal and the second user terminal comprises:

7. The method of claim 1, further comprising, prior to said detecting the channel quality between the first user terminal and the second user terminal:

8. The method of claim 1, further comprising, prior to said detecting a channel quality between a first user terminal and a second user terminal in response to a request for a distribution network communication by the first user terminal:

9. An apparatus for establishing a distribution network communication, configured in a base station, the apparatus comprising:

10. A base station, the base station comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of establishing a distribution network communication of any of claims 1-8.

11. A computer readable storage medium storing computer instructions for causing a processor to perform the method of establishing a distribution network communication according to any of claims 1-8.