CN116437360A - Heterogeneous network construction method, communication method based on heterogeneous network and related equipment - Google Patents

Heterogeneous network construction method, communication method based on heterogeneous network and related equipment Download PDF

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CN116437360A
CN116437360A CN202310538998.XA CN202310538998A CN116437360A CN 116437360 A CN116437360 A CN 116437360A CN 202310538998 A CN202310538998 A CN 202310538998A CN 116437360 A CN116437360 A CN 116437360A
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user terminal
access point
target
mode
network
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黄璇
宗佳颖
刘洋
邢燕霞
陈鹏
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Beijing Research Institute Of China Telecom Corp ltd
China Telecom Corp Ltd
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Beijing Research Institute Of China Telecom Corp ltd
China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The disclosure provides a heterogeneous network construction method, a heterogeneous network-based communication method and related equipment, and relates to the technical field of wireless communication. The method comprises the steps of obtaining position information reported by at least one user terminal; determining each user terminal as a static user terminal or a dynamic user terminal according to the position information reported by each user terminal; when the user terminal is a static user terminal, an access point is allocated for the user terminal, and the allocated access point is added into an access point set of a cellular network mode; when the user terminal is a dynamic user terminal, an access point cluster is allocated to the user terminal, and the access point cluster is added into an access point set without a cellular network mode, wherein the access point cluster comprises: a plurality of access points providing network services for user terminals. The present disclosure aims to reduce the handoff frequency while reducing the overhead of the forwarding network by constructing a hybrid heterogeneous network.

Description

Heterogeneous network construction method, communication method based on heterogeneous network and related equipment
Technical Field
The disclosure relates to the technical field of wireless communication, and in particular relates to a heterogeneous network construction method, a heterogeneous network-based communication method and related equipment.
Background
With the development of technology, wireless communication networks are developing toward network densification, and the application of the conventional cell structure brings about a plurality of problems such as increased number of base stations, increased construction cost, cell interference and handover.
In order to solve the above-mentioned problems, a cellular-free large-scale Multiple-Input Multiple-Output (MIMO) system has been developed in the related art. The non-cellular massive MIMO system realizes communication by using a large number of antennas distributed on a large number of Access Points (APs) in a communication area, and is connected to a baseband Unit (BBU) via a forward network. Although in theory, all APs may be User Equipment (UE) in a communication area, in practical situations, due to factors such as channel conditions, the UE with a communication requirement is usually associated with a set of suitable AP clusters to implement information interaction. At this time, however, the cooperation between the APs and the real-time update of the AP cluster may cause higher signaling overhead and processing delay to the forwarding network.
In summary, the related art cannot solve the problems of increasing the number of base stations, increasing the construction cost, cell interference, handover, and the like, and simultaneously reduce signaling overhead and processing delay of the forwarding network.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure provides a heterogeneous network construction method, a heterogeneous network-based communication method, and related devices, which at least to some extent overcome the problem that in the related art, cell interference and switching frequency cannot be reduced and transmission overhead of a forwarding network cannot be reduced at the same time in a transmission process of an access point and a user terminal.
Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.
According to one aspect of the present disclosure, there is provided a heterogeneous network construction method, including: acquiring position information reported by at least one user terminal; determining each user terminal as a static user terminal or a dynamic user terminal according to the position information reported by each user terminal; when the user terminal is a static user terminal, an access point is allocated for the user terminal, and the allocated access point is added into an access point set of a cellular network mode; when the user terminal is a dynamic user terminal, an access point cluster is allocated to the user terminal, and the access point cluster is added into an access point set without a cellular network mode, wherein the access point cluster comprises: and a plurality of access points for providing network services for the user terminal.
In some embodiments, allocating an access point to the user terminal and adding the allocated access point to the set of access points in the cellular network mode comprises: acquiring the priority of each static user terminal; acquiring channel conditions of at least one access point to be allocated; determining the access points allocated to each static user terminal according to the priority of each static user terminal and the channel conditions of each access point to be allocated; the access points assigned to each static user terminal are added to the set of access points in cellular network mode.
In some embodiments, allocating an access point cluster to the user terminal and adding the access point cluster to the access point set without the cellular network mode includes: acquiring the priority of each dynamic user terminal; acquiring channel conditions of at least one access point to be allocated; determining an access point cluster allocated to each user terminal according to the priority of each dynamic user terminal and the channel condition of each access point to be allocated; and adding the access point clusters allocated for each dynamic user terminal into the access point set without the cellular network mode.
In some embodiments, the method further comprises: judging whether the ratio of a first channel gain to a second channel gain meets a first preset threshold, wherein the first channel gain is the channel gain provided by an access point set without a cellular network mode corresponding to a current dynamic user terminal, and the second channel gain is the total channel gain corresponding to the current dynamic user terminal; when the ratio of the first channel gain to the second channel gain meets a first preset threshold value, distributing an access point for the next dynamic user terminal according to the priority order of the dynamic user terminals; and when the ratio of the first channel gain to the second channel gain does not meet a first preset threshold value, continuing to allocate access points for the current dynamic user terminal to form an access point cluster corresponding to the current dynamic user terminal.
In some embodiments, the method further comprises: obtaining the residual bandwidth of the forwarding network; acquiring the demand level of a current user terminal; judging whether the residual bandwidth is larger than a second preset threshold value or not; judging whether the demand level is greater than a preset level; when the residual bandwidth is larger than a second preset threshold value and the demand level is larger than a preset level, determining that the access point data detection mode is a complete centralized processing mode; and when the residual bandwidth is smaller than or equal to a second preset threshold value and/or the demand level is smaller than or equal to a preset level, determining that the access point data detection mode is a hybrid processing mode.
In some embodiments, the hybrid processing mode includes distributed preprocessing and joint detection, where the joint detection is large-scale fading detection or average joint detection, and the determining the access point data detection mode is a hybrid processing mode, including: acquiring a baseband unit configuration grade; acquiring the occupation level of a baseband unit; weighting the baseband unit configuration grade and the baseband unit occupation grade to obtain a baseband unit grade; judging whether the baseband unit grade meets a third preset threshold value or not; when the baseband unit grade meets a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and large-scale fading detection; and when the baseband unit grade does not meet a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and average detection.
According to another aspect of the present disclosure, there is also provided a communication method based on a heterogeneous network, including: acquiring position information reported by a target user terminal; according to the position information reported by the target user terminal, determining a static user terminal or a dynamic user terminal of the target user terminal; when the target user terminal is a static user terminal, selecting a target access point for providing network service for the target user terminal from a set of access points in a cellular network mode, and accessing the target user terminal to the target access point; when the target user terminal is a dynamic user terminal, selecting a target access point cluster for providing network service for the user terminal from an access point set without a cellular network mode, wherein the target access point cluster comprises: and a plurality of access points for providing network services for the target user terminal.
According to another aspect of the present disclosure, there is also provided a heterogeneous network construction apparatus including: the position information acquisition device is used for acquiring position information reported by at least one user terminal; the terminal state judging device is used for determining that each user terminal is a static user terminal or a dynamic user terminal according to the position information reported by each user terminal; the cellular network access point allocation device is used for allocating an access point for the user terminal when the user terminal is a static user terminal, and adding the allocated access point into the access point set of the cellular network mode; an access point allocation device of a non-cellular network, configured to allocate an access point cluster to a user terminal when the user terminal is a dynamic user terminal, and add the access point cluster to an access point set of a non-cellular network mode, where the access point cluster includes: and a plurality of access points for providing network services for the user terminal.
According to another aspect of the present disclosure, there is also provided a communication apparatus based on a heterogeneous network, including: the target position information acquisition device is used for acquiring position information reported by the target user terminal; the target terminal state judging device is used for determining a static user terminal or a dynamic user terminal of the target user terminal according to the position information reported by the target user terminal; a target cellular access point allocation device, configured to select, when the target user terminal is a static user terminal, a target access point that provides network services for the target user terminal from a set of access points in a cellular network mode, and access the target user terminal to the target access point; a target non-cellular network access point allocation device, configured to select, when the target user terminal is a dynamic user terminal, a target access point cluster that provides network services for the user terminal from a set of access points without a cellular network mode, where the target access point cluster includes: and a plurality of access points for providing network services for the target user terminal.
According to another aspect of the present disclosure, there is also provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the heterogeneous network construction method of any of the above via execution of the executable instructions.
According to another aspect of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the heterogeneous network construction method of any one of the above.
According to another aspect of the present disclosure, there is also provided a computer program product comprising a computer program which, when executed by a processor, implements the heterogeneous network construction method of any of the above.
The heterogeneous network construction method, the heterogeneous network-based communication method and the related equipment provided by the embodiment of the disclosure determine a movement state corresponding to each user terminal after the position information of the user terminal is acquired, and allocate access points to correspondingly form an access point set of a cellular network mode and an access point set of a non-cellular network mode according to whether the movement state is static or dynamic. The scheme provided by the embodiment of the disclosure can reduce the overhead of a forwarding network in the transmission process while reducing the inter-cell interference and the switching frequency in the data transmission of the access point and the user terminal.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
FIG. 1 illustrates a schematic diagram of an application system architecture in an embodiment of the present disclosure;
FIG. 2 is a flow chart of a heterogeneous network construction method in an embodiment of the disclosure;
FIG. 3 illustrates a flow chart of a heterogeneous network-based communication method in an embodiment of the present disclosure;
FIG. 4 illustrates a flow chart of a heterogeneous network communication method based on cellular and non-cellular MIMO in a mobile scenario in accordance with an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an embodiment of a heterogeneous network construction method in an embodiment of the disclosure;
FIG. 6 is a schematic diagram of a heterogeneous network construction device according to an embodiment of the present disclosure;
fig. 7 illustrates a schematic diagram of a communication device based on a heterogeneous network in an embodiment of the disclosure;
FIG. 8 illustrates a block diagram of an electronic device in an embodiment of the disclosure; and
Fig. 9 shows a schematic diagram of a computer-readable storage medium in an embodiment of the disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
For ease of understanding, before describing embodiments of the present disclosure, several terms referred to in the embodiments of the present disclosure are first explained as follows:
MIMO (Multiple-Input Multiple-Output), multiple-Input Multiple-Output;
AP (Access Point), access point;
BBU (Base Band Unit), baseband units;
UE (User Equipment), user terminal;
QoS (Quality of Service), quality of service;
CSI (Channel Statistical Information), channel statistics;
LSFD (Large-scale fade detection);
AI (Artificial Intelligence), artificial intelligence.
The following detailed description of embodiments of the present disclosure refers to the accompanying drawings.
Fig. 1 shows a schematic diagram of an application system architecture in an embodiment of the disclosure. As shown in fig. 1, the system architecture may include a terminal device, a network side device, and an access point.
The medium used by the network to provide a communication link between the access point and the network-side device may be a wired network or a wireless network.
Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, data exchanged over a network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet ProtocolSecurity, IPsec), etc. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.
The terminal device may be a variety of electronic devices including, but not limited to, smartphones, tablets, laptop portable computers, desktop computers, wearable devices, augmented reality devices, virtual reality devices, and the like.
Alternatively, the clients of the applications installed in different terminal devices are the same or clients of the same type of application based on different operating systems. The specific form of the application client may also be different based on the different terminal platforms, for example, the application client may be a mobile phone client, a PC client, etc.
In one embodiment of the disclosure, the terminal device may include a static user terminal UE1011 and a dynamic user terminal UE1012, the network may be a forwarding network 102, the network side device may be a baseband unit BBU103, and the access points may be a cellular MIMO mode access point AP1041 and a non-cellular MIMO mode access point AP1042.
The embodiments of the present disclosure may be applied to mobile-densified network scenarios for current 5G as well as future B5G/6G networks.
It should be noted that, in the embodiment of the present disclosure, the number of BBUs is not limited, and a single BBU scene may be used, or a multiple BBU scene may be used. The embodiment of the disclosure also has no limitation on the number of antennas of the UE and the AP, and can be a single antenna or multiple antennas.
Each AP can exchange information with the BBU through the forwarding network, and each AP can dynamically select two corresponding AP modes according to different UE access conditions, and no cellular MIMO mode are adopted. The non-cellular MIMO mode refers to mutual cooperation among the APs in the mode, and the APs in the same AP cluster provide service for the UE together; the cellular MIMO mode means that the AP in the mode does not need to cooperate with other APs, and processes UE information locally and independently, and does not need to transmit to the BBU through a forwarding network, and one AP provides service for one UE separately.
Each AP may be deployed in a fixed location, but the mode of each AP at each time may be changed, and at each time of AP mode update, dynamic selection of AP mode is performed according to access conditions of different UEs. It should be noted that, in the embodiment of the present disclosure, the update time of the AP mode may be adjusted by the BBU according to experience or an AI training model, as required.
Those skilled in the art will appreciate that the number of terminal devices, networks, and network side devices in fig. 1 is merely illustrative, and any number of terminal devices, networks, and network side devices may be provided as desired, and the embodiments of the present disclosure are not limited in this respect.
Under the system architecture described above, the embodiment of the present disclosure provides a heterogeneous network construction method, which may be performed by any electronic device having computing processing capabilities.
In some embodiments, the heterogeneous network construction method provided in the embodiments of the present disclosure may be performed by a terminal device of the above system architecture; in other embodiments, the heterogeneous network construction method provided in the embodiments of the present disclosure may be performed by a network side device in the system architecture described above; in other embodiments, the heterogeneous network construction method provided in the embodiments of the present disclosure may be implemented by the terminal device and the network side device in the system architecture in an interactive manner.
Fig. 2 shows a flowchart of a heterogeneous network construction method in an embodiment of the disclosure, as shown in fig. 2, where the method includes the following steps:
s202, obtaining position information reported by at least one user terminal.
The location information may be location information reported by each ue. The position information in the preset time period may be obtained, or the position information reported for multiple times may be obtained, which is not particularly limited in the embodiment of the present disclosure.
S204, according to the position information reported by each user terminal, determining that each user terminal is a static user terminal or a dynamic user terminal.
The static user terminal may refer to a user terminal whose moving state is static, or may refer to a user terminal whose position change degree is small, for example, a computer device in a resident, a notebook device, etc.; the dynamic user terminal may refer to a user terminal whose moving state is dynamic, or may refer to a user terminal whose position changes to a large extent, for example, a moving vehicle, etc., and the types of the static user terminal and the dynamic user terminal are not specifically limited in the embodiments of the present disclosure.
S206, when the user terminal is a static user terminal, an access point is allocated for the user terminal, and the allocated access point is added into the access point set of the cellular network mode.
S208, when the user terminal is a dynamic user terminal, an access point cluster is allocated to the user terminal, and the access point cluster is added into an access point set without a cellular network mode, wherein the access point cluster comprises: a plurality of access points providing network services for user terminals.
As can be seen from the foregoing, in the embodiment of the present disclosure, after the location information of each user terminal is obtained, the movement state corresponding to each user terminal is determined, and according to whether the movement state is static or dynamic, the access points are allocated to form the access point set of the cellular network mode and the access point set of the non-cellular network mode correspondingly. The scheme provided by the embodiment of the disclosure can reduce the overhead of a forwarding network in the transmission process while reducing the inter-cell interference and the switching frequency in the data transmission of the access point and the user terminal.
In one embodiment of the present disclosure, a large scale fading gain may be determined first. Firstly, uplink pilot frequency is sent to each AP through each UE, the AP receives data and carries out result calculation, and after measurement results are obtained, large-scale fading gain beta between each UE and each AP is determined kl Where K ε {1,2, …, K }, L ε {1,2, …, L }, where K is the number of UEs and L is the number of APs.
In one embodiment of the present disclosure, each UE periodically reports location information to the AP, and the UEs are classified into static UEs and dynamic UEs according to the location change of the last M UEs. It should be noted that, in the embodiment of the present disclosure, the value of M may be adjusted by the BBU according to experience or an AI training model, etc. as required, which is not specifically limited in the present disclosure.
It should be noted that, in the embodiment of the present disclosure, the interval time for reporting the position information to the AP by each UE is obtained by self-preconfiguration of the UE according to actual needs, which is not particularly limited in the embodiment of the present disclosure.
Initializing index set of user terminal, and static index set of user terminal is
Figure BDA0004227512940000091
Figure BDA0004227512940000092
The index set of the dynamic user terminal is +.>
Figure BDA0004227512940000093
The specific classification judgment method for any UE is as follows, and the UE k The following are examples:
first, the degree of change of the position of the UE M times recently is calculated, and a specific calculation formula is as follows:
Figure BDA0004227512940000094
wherein alpha is k For UE k Degree of change of position, z m For the m-th reported UE k The position, M, is the number of times currently reported, m.epsilon. {1,2, …, M }, M is the reporting UE k The total number of positions, K, is the index of the current UE, K e {1,2, …, K }, K is the number of UEs.
Second, update UE k If the position of (a) is changed to a degree alpha k <α 0 Then it is determined as a static user terminal and the index set delta of the static user terminal is updated 1 ＝Δ 1 U is k; if the position changes to an extent alpha k ≥α 0 Then it is determined as a dynamic user terminal and the index set delta of the dynamic user terminal is updated 2 ＝Δ 2 ∪k。
Here, the determination threshold α of the degree of change in position 0 The value of (2) can be adjusted according to the configuration of the AP and the actual requirement, for example, when the coverage range of the AP is large, alpha can be increased 0 To adapt to the requirements, when the coverage of the AP is small, the α can be reduced by 0 To adapt to the requirements.
It should be noted that, S206 and S208 may be performed at the time of updating each AP mode, where the time of updating the AP mode may be adjusted by the BBU according to experience or an AI training model as required, and the embodiment of the disclosure is not limited thereto specifically.
In one embodiment of the present disclosure, the step S206 includes: acquiring the priority of each static user terminal; acquiring channel conditions of at least one access point to be allocated; determining the access points allocated to each static user terminal according to the priority of each static user terminal and the channel conditions of each access point to be allocated; the access points assigned to each static user terminal are added to the set of access points in cellular network mode.
And selecting an AP with the best channel condition for the static UE to serve the static UE according to the order of the priority of each static UE from high to low. The priority of the static UE is determined according to the urgency of the UE service, for example, the instantaneity of a certain UE service is higher, the UE service is more urgent and needs to be processed with priority, and the priority of the UE is higher; the signal condition of the AP is determined via the large scale fading gain of the AP.
Initializing AP sets for cellular MIMO mode
Figure BDA0004227512940000101
Thereafter, in static UE k For example, select AP i To provide services thereto, wherein i should satisfy the following selection rules:
Figure BDA0004227512940000102
wherein i is the satisfaction of static UE k Index of AP selecting AP rule, beta kl For large scale fading gain, k is the index of the UE, k ε Δ 1 ，Δ 1 The index set is the index set of the static user terminal, i is the index of the AP, i epsilon {1,2, …, L }, and L is the number of the APs.
AP (access point) i Marked as cellular MIMO mode AP, when the AP will employ cellular MIMO as UE k Providing a service. Updating cellular MIMO mode AP set gamma c ＝γ c And (3) jumping to the next static UE according to the sequence from the priority to the bottom, and carrying out the operation again until all the static UEs are associated with the cellular MIMO mode AP. The embodiment of the disclosure can reduce the data processing delay and reduce the forwarding network pressure.
In one embodiment of the present disclosure, the step S208 includes: acquiring the priority of each dynamic user terminal; acquiring channel conditions of at least one access point to be allocated; determining an access point cluster allocated to each user terminal according to the priority of each dynamic user terminal and the channel condition of each access point to be allocated; and adding the access point clusters allocated for each dynamic user terminal into the access point set without the cellular network mode.
In one embodiment of the disclosure, determining whether a ratio of a first channel gain to a second channel gain meets a first preset threshold, where the first channel gain is a channel gain provided by an access point set without a cellular network mode corresponding to a current dynamic user terminal, and the second channel gain is a total channel gain corresponding to the current dynamic user terminal; when the ratio of the first channel gain to the second channel gain meets a first preset threshold value, distributing an access point for the next dynamic user terminal according to the priority order of the dynamic user terminals; and when the ratio of the first channel gain to the second channel gain does not meet the first preset threshold value, continuing to allocate the access points for the current dynamic user terminal to form an access point cluster corresponding to the current dynamic user terminal.
And selecting an AP cluster set for the dynamic UE to serve the dynamic UE in sequence according to the priority of each dynamic UE from high to low. The priority of the dynamic UE is determined according to the urgency of the UE service, for example, the instantaneity of a certain UE service is higher, the UE service is more urgent and needs to be processed with priority, and the priority of the UE is higher.
Initializing a non-cellular MIMO mode AP set
Figure BDA0004227512940000111
Later, with dynamic UE k For example, the AP set Ω= {1,2, …, L } -y may be selected c Serving it, as a dynamic UE k Serving non-cellular MIMO mode AP cluster T k The following selection rules should be satisfied:
initializing a UE k Associated AP clusters
Figure BDA0004227512940000112
Among the available AP sets Ω, find no UE to k AP with maximum large scale fading gain among APs providing service i The specific calculation mode is as follows:
Figure BDA0004227512940000113
wherein i is the satisfaction of dynamic UE k Index of AP selecting AP rule, beta kl For large scale fading gain, K is the index of the UE, K e {1,2, …, K }, K is the number of UEs, l is the index of the AP,
Figure BDA0004227512940000116
omega is the available AP index set, T k For UE k An index set of associated AP clusters.
Update T k ＝T k U.i. is to make AP i Joining a UE k In the associated AP cluster. If AP is i For dynamic UE k After the service is provided, when the number of service users reaches the number tau of orthogonal pilot sequences, Ω=Ω - { i }, where tau is the maximum value of the number of simultaneous service UEs for each AP.
AP (access point) i Marked as non-cellular MIMO mode AP, when the AP will employ non-cellular MIMO as UE k Providing a service. Updating the gamma of the non-cellular MIMO mode AP set cf ＝Υ cf And judging the AP cluster as the UE (user equipment) according to the U-i k Whether the ratio of the provided channel gain to the total channel gain meets a preset threshold delta or not is judged by the following specific judgment formula:
Figure BDA0004227512940000114
wherein delta is a preset threshold value, beta kl The large scale fading gain provided for the first AP in the AP cluster,
Figure BDA0004227512940000115
to total large scale fading gain, beta kj Large-scale fading gain provided for jth AP in channel, l is with UE k Index of AP in associated AP cluster, l epsilon T k ，T k For with UE k The index set of the associated AP cluster, j is the index of the APs in the total channel, j epsilon {1,2, …, L }, L is the total number of APs.
It should be noted that, in the embodiment of the present disclosure, the preset threshold δ is preset according to actual requirements, which is not specifically limited in the embodiment of the present disclosure.
When the AP cluster is UE k When the ratio of the provided channel gain to the total channel gain is greater than or equal to a preset threshold value, jumping to the next dynamic UE according to the sequence from high to low of the priority of the dynamic UE; when the AP cluster is UE k And when the ratio of the provided channel gain to the total channel gain is smaller than a preset threshold value, repeating the steps until the ratio of the provided channel gain to the total channel gain meets the preset threshold value. The disclosed embodiments may avoid frequent handoffs.
In one embodiment of the present disclosure, the remaining bandwidth of the forwarding network is acquired; acquiring the demand level of a current user terminal; judging whether the residual bandwidth is larger than a second preset threshold value or not; judging whether the demand level is greater than a preset level; when the residual bandwidth is larger than a second preset threshold value and the demand level is larger than a preset level, determining that the access point data detection mode is a complete centralized processing mode; and when the residual bandwidth is smaller than or equal to a second preset threshold value and/or the demand level is smaller than or equal to a preset level, determining that the access point data detection mode is a hybrid processing mode.
According to the QoS requirement of UE service, determining the service grade Q, wherein the more severe the service has to be to time delay, transmission rate, reliability and the like, the larger Q is. The residual bandwidth of the current transmission network is larger than a preset threshold C 0 And Q is higher than a preset threshold Q 0 When the method is used, a complete centralized processing mode is selected, an AP without a cellular MIMO mode serves as a repeater, pilot frequency and data signals received by all APs are forwarded to a BBU through a forwarding network, and channel estimation and UE data detection are carried out at the BBU; the residual bandwidth of the current transmission network is smaller than or equal to a preset threshold C 0 And/or Q is less than or equal to a preset threshold Q 0 When the method is used, a mixed processing mode is selected, namely a distributed preprocessing and joint detection mode, and channel estimation is not required to be carried out at the BBU.
Wherein, the distributed preprocessing of each AP specifically means that each AP locally carries out channel estimation by using a mode of maximum ratio combining or minimum mean square error to obtain CSI; each AP then locally processes the data signal from the UE based on the CSI to obtain a local preliminary estimate of the UE data and sends it to the connected BBU. The BBU performs joint detection specifically, where the BBU receives data estimates from each AP and performs joint detection on the data estimates.
In one embodiment of the present disclosure, a baseband unit configuration level is obtained; acquiring the occupation level of a baseband unit; weighting the baseband unit configuration grade and the baseband unit occupation grade to obtain a baseband unit grade; judging whether the baseband unit grade meets a third preset threshold value or not; when the baseband unit level meets a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and large-scale fading detection; and when the baseband unit grade does not meet a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and average detection.
Setting the configuration level G of the BBU according to the calculation power, hardware capability and the like of the BBU m The stronger the BBU calculation power, the better the hardware capability, G m The larger. Determining the occupancy level G of the BBU according to the available memory of the BBU q It should be noted that the more available memory of the BBU, G q The larger.
It should be noted that, the capability level of other BBUs may also be set according to actual situations, which is not specifically limited in the embodiments of the present disclosure.
The capability level of each BBU is weighted and calculated to obtain the level of the BBU, and the specific calculation formula is as follows:
G＝α 1 G m +α 2 G q (5)
wherein G is the grade of BBU, G m Configuration class for BBU, G q For occupancy level of BBU, alpha 1 And alpha 2 Is the weight coefficient, alpha is more than or equal to 0 1 ≤1，0≤α 2 ≤1，α 1 +α 2 ＝1。
When the grade G of the BBU is more than or equal to a preset threshold value gamma 1 At this time, the BBU has better performance, and based on the received data estimation and channel statistical information from each AP, the BBU adopts an LSFD method with higher frequency spectrum efficiency to perform joint detection through linear processing; when the grade G of the BBU is smaller than the preset threshold gamma 1 At this time, the BBU has poor performance, and performs joint detection by simply obtaining an average value of local estimation values based on the received data estimation from each AP without transmitting channel statistics information in the forward network, to obtain an estimation value of the UE signal. The embodiment of the disclosure reduces the transmission data volume of the forwarding network and the calculation complexity at the BBU.
It should be noted that, the first preset threshold, the second preset threshold, and the third preset threshold are all set according to actual requirements, and the values of the first preset threshold, the second preset threshold, and the third preset threshold are not specifically limited in the embodiment of the present disclosure.
Fig. 3 shows a flowchart of a communication method based on a heterogeneous network in an embodiment of the disclosure, as shown in fig. 3, the method includes the following steps:
s302, position information reported by a target user terminal is obtained.
The target ue may be any ue, and the location information may be location information reported in real time, or may be location information reported in a preset time period, which is not specifically limited in the embodiments of the present disclosure.
S304, determining the static user terminal or the dynamic user terminal of the target user terminal according to the position information reported by the target user terminal.
S306, when the target user terminal is a static user terminal, selecting a target access point for providing network service for the target user terminal from the access point set of the cellular network mode, and accessing the target user terminal to the target access point.
S308, when the target ue is a dynamic ue, selecting a target access point cluster for providing network services for the ue from a set of access points without cellular network mode, where the target access point cluster includes: a plurality of access points providing network services for the target user terminal.
As can be seen from the foregoing, in the embodiment of the present disclosure, after the location information of the target user terminal is obtained, the movement state corresponding to the target user terminal is determined, and according to whether the movement state is static or dynamic, the access points are allocated to form the access point set of the cellular network mode and the access point set of the non-cellular network mode correspondingly. The scheme provided by the embodiment of the disclosure can reduce the overhead of a forwarding network in the transmission process while reducing the inter-cell interference and the switching frequency in the data transmission of the access point and the user terminal.
Fig. 4 shows a flowchart of a heterogeneous network communication method based on cellular and non-cellular MIMO in a mobile scenario according to an embodiment of the present disclosure, as shown in fig. 4, where the method includes the following steps:
s402, determining large-scale fading gains beta between each UE and each AP kl 。
S404, calculating the position change degree alpha of each UE in the last M times according to the position information reported by each UE k 。
S406, determining the position change degree alpha k Whether or not it is smaller than a preset threshold value alpha 0 If the degree of change alpha of the position k Greater than or equal to a preset threshold alpha 0 S408 is performed; if the degree of change alpha of position k Less than a preset threshold alpha 0 S422 is performed.
And S408, constructing a non-cellular MIMO mode AP set.
Wherein S408 includes S4081, determining that the UE is a dynamic user terminal.
S4082, initializing UE k Associated AP clusters
Figure BDA0004227512940000141
S4083, finding a UE not to the UE in the available AP set Ω k AP with maximum large scale fading gain among APs providing service i 。
S4084, update UE k Associated AP cluster T k ＝T k U.i (where i is the index of the AP selected to join the AP cluster) and AP availability set Ω.
S4085, marking the selected AP as a non-cellular MIMO mode AP, and adding a non-cellular MIMO mode AP set gamma cf ＝Υ cf ∪i。
S4086, judging the AP cluster as the UE k Whether the provided channel gain satisfies the UE k If the communication requirement is satisfied, proceeding to S410; if not, S4083-S4085 are performed.
S410, after traversing all dynamic UE, obtaining a final non-honeycomb MIMO mode AP set gamma cf 。
S412, judging whether the residual bandwidth of the forwarding network is greater than a preset threshold G 0 And UE requirementsThe level is higher than a preset threshold value Q 0 If so, S414 is performed; if not, S416 is performed.
S414, determining that the access point data estimation processing mode is a complete centralized processing mode.
S416, judging whether the grade G of the BBU meets a preset threshold gamma 1 If yes, go to S418; if not, S420 is performed.
S418, determining the access point data estimation processing mode as distributed preprocessing and large-scale fading joint detection.
S420, determining that the access point data estimation processing mode is distributed preprocessing and simple average value joint detection.
S422, constructing a cellular MIMO mode AP set.
S422 includes S4221, where it is determined that the UE is a static user terminal.
S4222, sequentially selecting an AP with the best channel condition according to the order of the priority of each static UE from high to low to provide service for the AP.
S4223, marking the selected AP as a cellular MIMO mode AP, and adding a cellular MIMO mode AP set y c ＝Υ c ∪i。
S4224, traversing all static UE to obtain final honeycomb MIMO mode AP set gamma c 。
Fig. 5 is a schematic diagram of an embodiment of a heterogeneous network construction method in an embodiment of the disclosure, as shown in fig. 5, in which a BBU and an AP 1 -AP 15 Connected through a forwarding network to be the UE in the figure 1 -UE 15 Providing a service.
A large scale fading gain is determined. Each UE transmits uplink pilot frequency to each AP, and the AP determines a large-scale fading gain beta between each UE and each AP according to the measurement result kl Where k ε {1,2, …,5}, l ε {1,2, …,15}.
A classification of the UE is determined. Each UE periodically reports position information to the AP, and according to the position change condition of the last 5 times of UE, the user terminals are divided into static user terminals (UE) 1 、UE 3 、UE 5 ) And mobile user terminals (UE) 2 、UE 4 )。
And constructing a heterogeneous network. First, a set of cellular MIMO mode APs is constructed, and the priority of each static UE is set to be higher to lower (UE 1 →UE 3 →UE 5 ) One AP with the best channel condition is selected in turn to serve it. Specifically, the method comprises the steps of selecting the AP with the best channel condition for the UE1 4 Selecting the AP with the best channel condition for UE3 8 For UE (user equipment) 5 Selecting an AP with the best channel conditions 13 Cellular MIMO mode AP set gamma c = {4,8,13}, AP 4 、AP 8 、AP 13 Labeled cellular MIMO mode AP, they will serve the UE with cellular MIMO.
Reconstructing the non-cellular MIMO mode AP set, and determining the priority of each dynamic UE from high to low (UE) 2 →UE 4 ) Which in turn selects a set of AP clusters for serving. With UE 2 For example, the available AP set Ω= {1,2,3,5,6,7,9,10,11,12,14,15} is UE 2 Serving non-cellular MIMO mode AP cluster T 2 The selection criteria are as follows:
initializing UE2 associated AP clusters
Figure BDA0004227512940000161
Among the set of available APs Ω, the AP with the largest large-scale fading gain among the APs that are not serving UE2 is found i As can be seen from the above calculation formula (3), i=5.
Updating AP cluster T 2 ＝T 2 U.5= {5}, i.e. AP 5 Joining a UE 2 Is a cluster of APs.
AP (access point) 5 Marked as non-cellular MIMO mode AP, which will employ non-cellular MIMO as UE 2 Providing service, updating honeycomb MIMO mode AP set gamma cf ＝Υ cf And judging the AP cluster as the UE by U5 = {5} 2 The ratio of the provided channel gain to the total channel gain does not satisfy more than 75% of the predetermined threshold, and the above steps are continued to be repeated.
Finally get the UE 2 Service providing AP cluster T 2 = {1,2,3,5,6,7,9}, which is UE 4 Service providing AP cluster T 4 = {7,9,10,11,12,14,15}, cellular MIMO mode AP set y c = {1,2,3,5,6,7,9,10,11,12,14,15}. The APs are labeled as non-cellular MIMO mode APs, which will serve the UE using non-cellular MIMO.
And finally, selecting a processing mode for the network adopting the non-cellular MIMO. The BBU selects a complete centralized processing mode and a mixed processing mode according to the bandwidth occupation condition of the forwarding network and the UE demand level.
In the embodiment of the present disclosure, the residual bandwidth of the forwarding network is smaller than the preset threshold C 0 The hybrid processing mode, i.e. the distributed preprocessing and joint detection mode, is selected.
Firstly, carrying out distributed preprocessing on each AP, specifically, carrying out channel estimation on each AP locally by using a maximum ratio combining or minimum mean square error method to obtain CSI; each AP then locally processes the data signal from the UE based on the CSI to obtain a local preliminary estimate of the UE data and sends it to the connected BBU.
The BBU then receives the data estimates from each AP and performs joint detection on them, specifically, in embodiments of the present disclosure, BBU level G+.gamma. 1 The BBU has better performance, and based on the received data estimation and channel statistical information from each AP, the BBU adopts an LSFD method with higher spectral efficiency to perform joint detection through linear processing.
Based on the same inventive concept, the embodiment of the disclosure also provides a heterogeneous network construction device, as described in the following embodiment. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.
Fig. 6 is a schematic diagram of a heterogeneous network construction device according to an embodiment of the present disclosure, as shown in fig. 6, the device 60 includes: a location information acquisition module 601, a terminal status discrimination module 602, a cellular network access point allocation module 603, and a non-cellular network access point allocation module 604.
The location information obtaining module 601 is configured to obtain location information reported by at least one user terminal; the terminal state judging module 602 is configured to determine, according to the position information reported by each user terminal, whether each user terminal is a static user terminal or a dynamic user terminal; a cellular network access point allocation module 603, configured to allocate an access point to a user terminal when the user terminal is a static user terminal, and add the allocated access point to the set of access points in the cellular network mode; a non-cellular access point allocation module 604, configured to allocate an access point cluster for a user terminal when the user terminal is a dynamic user terminal, and add the access point cluster to an access point set of a non-cellular network mode, where the access point cluster includes: a plurality of access points providing network services for user terminals.
As can be seen from the foregoing, the apparatus provided in the embodiments of the present disclosure may be configured to determine a movement state corresponding to each user terminal after obtaining location information of the user terminal, and allocate an access point to form a set of access points in a cellular network mode and a set of access points in a non-cellular network mode according to whether the movement state is static or dynamic. The scheme provided by the embodiment of the disclosure can reduce the overhead of a forwarding network in the transmission process while reducing the inter-cell interference and the switching frequency in the data transmission of the access point and the user terminal.
In an embodiment of the present disclosure, the cellular network access point allocation module may be further configured to obtain a priority of each static user terminal; acquiring channel conditions of at least one access point to be allocated; determining the access points allocated to each static user terminal according to the priority of each static user terminal and the channel conditions of each access point to be allocated; the access points assigned to each static user terminal are added to the set of access points in cellular network mode.
In an embodiment of the present disclosure, the above-mentioned non-cellular access point allocation module may be further configured to obtain priorities of each dynamic user terminal; acquiring channel conditions of at least one access point to be allocated; determining an access point cluster allocated to each user terminal according to the priority of each dynamic user terminal and the channel condition of each access point to be allocated; and adding the access point clusters allocated for each dynamic user terminal into the access point set without the cellular network mode.
In an embodiment of the present disclosure, the heterogeneous network construction module may be further configured to determine whether a ratio of a first channel gain to a second channel gain meets a first preset threshold, where the first channel gain is a channel gain provided by an access point set without a cellular network mode corresponding to a current dynamic user terminal, and the second channel gain is a total channel gain corresponding to the current dynamic user terminal; when the ratio of the first channel gain to the second channel gain meets a first preset threshold value, distributing an access point for the next dynamic user terminal according to the priority order of the dynamic user terminals; and when the ratio of the first channel gain to the second channel gain does not meet the first preset threshold value, continuing to allocate the access points for the current dynamic user terminal to form an access point cluster corresponding to the current dynamic user terminal.
In an embodiment of the present disclosure, the heterogeneous network constructing apparatus may further be configured to obtain a remaining bandwidth of the forwarding network; acquiring the demand level of a current user terminal; judging whether the residual bandwidth is larger than a second preset threshold value or not; judging whether the demand level is greater than a preset level; when the residual bandwidth is larger than a second preset threshold value and the demand level is larger than a preset level, determining that the access point data detection mode is a complete centralized processing mode; and when the residual bandwidth is smaller than or equal to a second preset threshold value and/or the demand level is smaller than or equal to a preset level, determining that the access point data detection mode is a hybrid processing mode.
In an embodiment of the present disclosure, the heterogeneous network construction device may further be configured to obtain a baseband unit configuration level; acquiring the occupation level of a baseband unit; weighting the baseband unit configuration grade and the baseband unit occupation grade to obtain a baseband unit grade; judging whether the baseband unit grade meets a third preset threshold value or not; when the baseband unit level meets a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and large-scale fading detection; and when the baseband unit grade does not meet a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and average detection.
The embodiment of the disclosure also provides a communication device based on the heterogeneous network, as described in the following embodiment. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.
Fig. 7 shows a schematic diagram of a communication device based on a heterogeneous network in an embodiment of the disclosure, as shown in fig. 7, the device 70 includes: a target location information acquisition module 701, a target terminal status discrimination module 702, a target cellular network access point allocation module 703, and a target non-cellular network access point allocation module 704.
The target location information obtaining module 701 is configured to obtain location information reported by a target user terminal; the target terminal state judging module 702 is configured to determine a static user terminal or a dynamic user terminal of the target user terminal according to the position information reported by the target user terminal; the target cellular network access point allocation module is used for selecting a target access point for providing network service for the target user terminal from the access point set of the cellular network mode when the target user terminal is a static user terminal, and accessing the target user terminal to the target access point; the target non-cellular network access point allocation module is configured to select, when the target user terminal is a dynamic user terminal, a target access point cluster for providing network services for the user terminal from a set of access points in a non-cellular network mode, where the target access point cluster includes: a plurality of access points providing network services for the target user terminal.
As can be seen from the foregoing, the apparatus provided in the embodiments of the present disclosure may be configured to determine a movement state corresponding to a target user terminal after obtaining location information of the target user terminal, and allocate an access point to form a set of access points in a cellular network mode and a set of access points in a non-cellular network mode according to whether the movement state is static or dynamic. The scheme provided by the embodiment of the disclosure can reduce the overhead of a forwarding network in the transmission process while reducing the inter-cell interference and the switching frequency in the data transmission of the access point and the user terminal.
Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.
An electronic device 800 according to such an embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.
Fig. 8 illustrates a block diagram of an electronic device in an embodiment of the disclosure. An electronic device 800 according to such an embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.
As shown in fig. 8, the electronic device 800 is embodied in the form of a general purpose computing device. Components of electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, and a bus 830 connecting the various system components, including the memory unit 820 and the processing unit 810.
Wherein the storage unit stores program code that is executable by the processing unit 810 such that the processing unit 810 performs steps according to various exemplary embodiments of the present disclosure described in the above section of the present specification. For example, the processing unit 810 may perform the following steps of the method embodiment described above: acquiring position information reported by at least one user terminal; determining each user terminal as a static user terminal or a dynamic user terminal according to the position information reported by each user terminal; when the user terminal is a static user terminal, an access point is allocated for the user terminal, and the allocated access point is added into an access point set of a cellular network mode; when the user terminal is a dynamic user terminal, an access point cluster is allocated to the user terminal, and the access point cluster is added into an access point set without a cellular network mode, wherein the access point cluster comprises: a plurality of access points providing network services for user terminals.
The storage unit 820 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 8201 and/or cache memory 8202, and may further include Read Only Memory (ROM) 8203.
Storage unit 820 may also include a program/utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 830 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 800 may also communicate with one or more external devices 840 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 800, and/or any device (e.g., router, modem, etc.) that enables the electronic device 800 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 850. Also, electronic device 800 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 860. As shown, network adapter 860 communicates with other modules of electronic device 800 over bus 830. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 800, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a network-side device, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.
In particular, according to embodiments of the present disclosure, the process described above with reference to the flowcharts may be implemented as a computer program product comprising: and a computer program which, when executed by a processor, implements the heterogeneous network construction method described above.
In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. Fig. 9 illustrates a schematic diagram of a computer-readable storage medium in an embodiment of the present disclosure, as shown in fig. 9, on which a program product 900 capable of implementing the above-described method of the present disclosure is stored. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal device.
More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having 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.
In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or network-side device. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a network-side device, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (11)

1. The heterogeneous network construction method is characterized by comprising the following steps of:
acquiring position information reported by at least one user terminal;
determining each user terminal as a static user terminal or a dynamic user terminal according to the position information reported by each user terminal;
when the user terminal is a static user terminal, an access point is allocated for the user terminal, and the allocated access point is added into an access point set of a cellular network mode;
when the user terminal is a dynamic user terminal, an access point cluster is allocated to the user terminal, and the access point cluster is added into an access point set without a cellular network mode, wherein the access point cluster comprises: and a plurality of access points for providing network services for the user terminal.
2. The heterogeneous network construction method according to claim 1, wherein assigning an access point to the user terminal and adding the assigned access point to the set of access points in the cellular network mode, comprises:
acquiring the priority of each static user terminal;
acquiring channel conditions of at least one access point to be allocated;
determining the access points allocated to each static user terminal according to the priority of each static user terminal and the channel conditions of each access point to be allocated;
The access points assigned to each static user terminal are added to the set of access points in cellular network mode.
3. The heterogeneous network construction method according to claim 1, wherein assigning an access point cluster to the user terminal and adding the access point cluster to an access point set having no cellular network mode, comprises:
acquiring the priority of each dynamic user terminal;
acquiring channel conditions of at least one access point to be allocated;
determining an access point cluster allocated to each user terminal according to the priority of each dynamic user terminal and the channel condition of each access point to be allocated;
and adding the access point clusters allocated for each dynamic user terminal into the access point set without the cellular network mode.
4. A heterogeneous network construction method according to claim 3, wherein the method further comprises:
judging whether the ratio of a first channel gain to a second channel gain meets a first preset threshold, wherein the first channel gain is the channel gain provided by an access point set without a cellular network mode corresponding to a current dynamic user terminal, and the second channel gain is the total channel gain corresponding to the current dynamic user terminal;
When the ratio of the first channel gain to the second channel gain meets a first preset threshold value, distributing an access point for the next dynamic user terminal according to the priority order of the dynamic user terminals;
and when the ratio of the first channel gain to the second channel gain does not meet a first preset threshold value, continuing to allocate access points for the current dynamic user terminal to form an access point cluster corresponding to the current dynamic user terminal.
5. A heterogeneous network construction method according to claim 3, wherein the method further comprises:
obtaining the residual bandwidth of the forwarding network;
acquiring the demand level of a current user terminal;
judging whether the residual bandwidth is larger than a second preset threshold value or not;
judging whether the demand level is greater than a preset level;
when the residual bandwidth is larger than a second preset threshold value and the demand level is larger than a preset level, determining that the access point data detection mode is a complete centralized processing mode;
and when the residual bandwidth is smaller than or equal to a second preset threshold value and/or the demand level is smaller than or equal to a preset level, determining that the access point data detection mode is a hybrid processing mode.
6. The heterogeneous network construction method according to claim 5, wherein the hybrid processing method includes distributed preprocessing and joint detection, wherein the joint detection is a large-scale fading detection or an average joint detection, and the determining the access point data detection method is a hybrid processing method, and includes:
Acquiring a baseband unit configuration grade;
acquiring the occupation level of a baseband unit;
weighting the baseband unit configuration grade and the baseband unit occupation grade to obtain a baseband unit grade;
judging whether the baseband unit grade meets a third preset threshold value or not;
when the baseband unit grade meets a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and large-scale fading detection;
and when the baseband unit grade does not meet a third preset threshold value, determining that the access point data detection mode is distributed preprocessing and average detection.
7. A heterogeneous network-based communication method, comprising:
acquiring position information reported by a target user terminal;
according to the position information reported by the target user terminal, determining a static user terminal or a dynamic user terminal of the target user terminal;
when the target user terminal is a static user terminal, selecting a target access point for providing network service for the target user terminal from a set of access points in a cellular network mode, and accessing the target user terminal to the target access point;
when the target user terminal is a dynamic user terminal, selecting a target access point cluster for providing network service for the user terminal from an access point set without a cellular network mode, wherein the target access point cluster comprises: and a plurality of access points for providing network services for the target user terminal.
8. A heterogeneous network construction apparatus, comprising:
the position information acquisition device is used for acquiring position information reported by at least one user terminal;
the terminal state judging device is used for determining that each user terminal is a static user terminal or a dynamic user terminal according to the position information reported by each user terminal;
the cellular network access point allocation device is used for allocating an access point for the user terminal when the user terminal is a static user terminal, and adding the allocated access point into the access point set of the cellular network mode;
the non-cellular network access point allocation device is used for allocating an access point cluster for the user terminal when the user terminal is a dynamic user terminal, adding the access point cluster into an access point set without a cellular network mode, and the access point cluster comprises: and a plurality of access points for providing network services for the user terminal.
9. A heterogeneous network-based communication device, comprising:
the target position information acquisition device is used for acquiring position information reported by the target user terminal;
the target terminal state judging device is used for determining a static user terminal or a dynamic user terminal of the target user terminal according to the position information reported by the target user terminal;
A target cellular access point allocation device, configured to select, when the target user terminal is a static user terminal, a target access point that provides network services for the target user terminal from a set of access points in a cellular network mode, and access the target user terminal to the target access point;
a target non-cellular network access point allocation device, configured to select, when the target user terminal is a dynamic user terminal, a target access point cluster that provides network services for the user terminal from a set of access points without a cellular network mode, where the target access point cluster includes: and a plurality of access points for providing network services for the target user terminal.
10. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the heterogeneous network construction method of any one of claims 1 to 6, or the heterogeneous network-based communication method of claim 7, via execution of the executable instructions.
11. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the heterogeneous network construction method according to any one of claims 1 to 6, or the heterogeneous network-based communication method according to claim 7.
CN202310538998.XA 2023-05-12 2023-05-12 Heterogeneous network construction method, communication method based on heterogeneous network and related equipment Pending CN116437360A (en)

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