CN111194091B - Hybrid cluster system, resource scheduling method and device, and storage medium - Google Patents
Hybrid cluster system, resource scheduling method and device, and storage medium Download PDFInfo
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- CN111194091B CN111194091B CN201811353241.9A CN201811353241A CN111194091B CN 111194091 B CN111194091 B CN 111194091B CN 201811353241 A CN201811353241 A CN 201811353241A CN 111194091 B CN111194091 B CN 111194091B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
Abstract
The invention provides a hybrid cluster system, a resource scheduling method and device and a storage medium. The system comprises: the method comprises the following steps that a cellular network is constructed by a plurality of basic cells, and the basic cells distribute downlink resources in a single-cell multicast mode; a co-frequency simulcast cell, wherein the co-frequency simulcast cell is obtained by overlapping deployment of a co-frequency simulcast technology on a part of the basic cells in a cellular network, and the co-frequency simulcast technology comprises: at least one of a base station and a channel; and the resource scheduling device is used for realizing the resource scheduling and the information forwarding of the hybrid cluster system. The hybrid cluster system improves the capacity expansion capability and the flexibility of the cluster communication system.
Description
Technical Field
The present invention relates to communications technologies, and in particular, to a hybrid cluster system, a resource scheduling method and apparatus, and a storage medium.
Background
At present, an existing trunking communication system is generally constructed in a single networking manner, for example, a single cell multicast manner is used for constructing a network of a trunking system, or a multi-cell co-frequency co-broadcast manner is used for networking.
However, with the rapid development of urban construction, higher demands are made for the capacity expansion of the trunking communication system. The existing cluster network is established in a single networking mode, so that the capacity expansion space is limited, the problem that the capacity expansion scene cannot be met is often encountered, and the actual capacity expansion requirement cannot be met.
Disclosure of Invention
The invention provides a hybrid cluster system, a resource scheduling method and device and a storage medium, which are used for improving the capacity expansion capability and flexibility of a cluster communication system.
In a first aspect, the present invention provides a hybrid cluster system, including: the method comprises the following steps that a cellular network is constructed by a plurality of basic cells, and the basic cells distribute downlink resources in a single-cell multicast mode;
a co-frequency simulcast cell, wherein the co-frequency simulcast cell is obtained by overlapping deployment of a co-frequency simulcast technology on a part of the basic cells in the cellular network, and the co-frequency simulcast technology comprises: at least one of a base station and a channel;
and the resource scheduling device is used for realizing the resource scheduling and the information forwarding of the hybrid cluster system.
In a second aspect, the present invention provides a resource scheduling method, applied to the hybrid cluster system according to the first aspect, executed in the resource scheduling apparatus, the method including:
receiving a called request aiming at a called terminal, wherein the called terminal belongs to the mixed cluster system;
judging the cell type to which the called terminal belongs;
and allocating communication resources for the called request according to the cell type, and initiating a called party to the called terminal.
In a third aspect, the present invention provides a resource scheduling apparatus, applied to the hybrid cluster system according to the first aspect, the apparatus includes:
a receiving module, configured to receive a called request for a called end, where the called end belongs to the hybrid cluster system;
the judging module is used for judging the cell type to which the called terminal belongs;
an allocation module, configured to allocate communication resources to the called request according to the cell type;
and the calling module is used for initiating a called party to the called terminal.
In a fourth aspect, the present invention provides an apparatus for scheduling resources, the apparatus comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of the second aspect.
In a fifth aspect, a computer-readable storage medium having stored thereon a computer program,
the computer program is executed by a processor to implement the method according to the second aspect.
According to the technical scheme provided by the invention, a basic cell is constructed in a single-cell multicast mode, and a same-frequency simulcast channel or a base station meeting the same-frequency simulcast is overlapped and deployed in a cellular network formed by a plurality of basic cells to form a mixed trunking system, so that downlink resources can be distributed in the single-cell multicast mode aiming at the basic cells in the mixed trunking system, and the communication requirement of a cell group can be met; for the cells superposed with the same-frequency synchronization technology, downlink resources can be distributed in a same-frequency and same-broadcast mode, the communication requirement of a large group can be met, and the flexibility is high; moreover, the hybrid cluster system is not limited to a communication means, and when capacity expansion is needed, only the common-frequency simulcasting technology needs to be overlapped and deployed on the basis of the basic cells according to needs, so that the hybrid cluster system has good capacity expansion capability. Therefore, the technical scheme provided by the embodiment of the invention can improve the capacity expansion capability and flexibility of the cluster communication system and meet the communication requirements of different groups to a certain extent.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic architecture diagram of a hybrid cluster system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a resource scheduling method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating another resource scheduling method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a resource scheduling apparatus according to an embodiment of the present invention;
fig. 5 is a schematic entity structure diagram of a resource scheduling apparatus according to an embodiment of the present invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms to which the present invention relates will be explained first:
single-cell multicast: downlink resource allocation is independent from each other, alignment of air interface signals such as frequency, time, modulation mode and the like is not required, and signals of adjacent base stations are interference sources for terminal demodulation.
Multi-cell co-frequency simulcasting: the simulcast base station aligns the frequency, time and modulation signal of the sending signal, and the downlink signal of the simulcast base station does not interfere with the terminal demodulation.
In the prior art, networking is generally performed in any one of the two manners. However, for a large group, group users are widely distributed in each cell, and the common-frequency simulcast scheme saves air interface physical resources more than the single-cell multicast scheme. On the contrary, for the small group, the group user is only distributed in a few cells, and the single-cell multicast scheme saves air interface physical resources more than the same-frequency simulcast scheme.
For example, for a dedicated Digital Trunking System (PDTS), networking a cellular network in a frequency multiplexing manner is a single-cell multicast scheme, and networking with the same frequency point of each cell is a multi-cell same-frequency simulcasting scheme. For another example, for a Long Term Evolution (LTE) communication system, Single Cell-Point to Multi-Point (SC-PTM) is a Single-Cell Multicast scheme, and enhanced Multimedia Broadcast Multicast (eMBMS) is a Multi-Cell co-frequency simulcast scheme.
Due to the networking mode, the capacity expansion capability of the communication system is limited by the networking mode, in practical application, the networking design needs to be carried out again due to the fact that the capacity expansion cannot be achieved, a large amount of manpower and material resources are wasted, and the further capacity expansion capability of the redesigned network is low.
The example is a networking scheme of the PDTS. If the capacity expansion requirement for the PDTS is: in the PDT (professional Digital reporting) frequency band of the spectrum 350MHz, the original 5MHz PDT frequency is replanted to 2MHz PDT +3MHz LTE, so that the frequency band can bear broadband services. However, the original PDT networking mode is designed based on 4MHz frequency band, 8 carriers for the wisdom tooth basic cell and 16 carriers for some hotspot cells. Therefore, without new design of the networking scheme, the 2MHz frequency can only satisfy the scenario that the base cell is 4, which cannot satisfy the aforementioned capacity expansion requirement and actual use requirement. That is, after PDT frequency band compression, the service requirements of 8 carriers in the base cell and 16 carriers in the local hot spot within 2MHz need to be realized, and the existing PDTs cannot meet the service requirements.
Based on the foregoing technical problems in the prior art, embodiments of the present invention provide the following solutions: and designing a basic cell according to a single-cell multicast scheme, and overlapping the same-frequency simulcasting technology according to different scenes to realize the hybrid networking of trunking communication.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
The embodiment of the invention provides a hybrid cluster system. Referring to fig. 1, the hybrid cluster system may include:
the base cells are constructed into a cellular network, and the base cells adopt a single-cell multicast mode to distribute downlink resources;
a co-frequency simulcast cell, wherein the co-frequency simulcast cell is obtained by overlapping deployment of a co-frequency simulcast technology on a part of the basic cells in a cellular network, and the co-frequency simulcast technology comprises: at least one of a base station and a channel;
and the resource scheduling device is used for realizing the resource scheduling and the information forwarding of the hybrid cluster system.
It should be noted that, in the embodiment of the present invention, the common-frequency simulcasting technology overlapped and deployed in part of the base cells may include: and overlapping and deploying the same-frequency simulcast base station and at least one of the same-frequency simulcast channels.
Specifically, when the common-frequency simulcasting technology is deployed in a superposition manner, based on different deployment modes, at least one type of cells exists in the hybrid cluster system as follows:
deploying a same-frequency simulcasting base station to form an all-same-frequency simulcasting cell (or called as a split cell);
and deploying the same-frequency simulcast channels to form partial same-frequency simulcast cells.
Specifically, please refer to a schematic diagram of the hybrid cluster system shown in fig. 1. As shown in fig. 1, the hybrid cluster communication cell includes: a basic cell (a number at the beginning), an all co-frequency simulcast cell (B number at the beginning), and a partial co-frequency simulcast cell (C number at the beginning).
As shown in fig. 1, the base cells are deployed in a single-cell multicast manner, and form a cellular network as shown in fig. 1. The basic cells can distribute downlink resources in a single-cell multicast mode, and can meet the communication requirements of cell groups. When the initial network planning is specifically performed, the basic cell may perform the networking design in a pilot frequency multiplexing mode.
In a part of the basic cells, a base station is deployed in superposition in a basic cell a005 shown in fig. 1 to form an all co-frequency simulcasting cell B005. In the hybrid trunking system shown in fig. 1, the all-co-frequency simulcasting cell B005 completely belongs to the basic cell a005, and both realize co-frequency simulcasting. That is, the frequency point of the all-co-frequency simulcast cell B005 is the same as the frequency point of the basic cell a005 to which the all-co-frequency simulcast cell B belongs, the transmission of the downlink signal is also completely the same as the basic cell a005, and the uplink realizes reception according to the strongest path or uplink combination, which can meet the service requirement of adding stations without adding frequency points in part of application scenarios.
The same-frequency simulcast channels are arranged in a superimposed manner in the hybrid trunking system shown in fig. 1, the newly added same-frequency simulcast channels can be mainly used for large group communication, and the basic cell can be used for small group communication.
In addition, because the co-frequency simulcast channels are newly added and deployed, the number of frequency points in a part of co-frequency simulcast cells can be expressed as follows: n + M, where N-1 is the number of pilot frequency service frequency points of the original basic cell, M is the number of frequency points of a common-frequency simulcast channel, 1 is the number of master frequency control points, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 1.
In addition, the hybrid trunking system shown in fig. 1 is a possible design, and in practical implementation, the embodiment of the present invention has no limitation on the number of partial co-frequency simulcasting cells and full co-frequency simulcasting cells. And in some special application scenarios, the same-frequency simulcasting base station and the same-frequency simulcasting channel can be further deployed at the same time, so as to further improve the capacity expansion capability of the hybrid trunking system.
Through the design, in the embodiment of the invention, the basic cells are constructed in a single-cell multicast mode to form the cellular network, and further common-frequency simulcasting technologies (base stations and/or channels) are overlapped and deployed in part of the basic cells, so that the capacity expansion capability and the flexibility of the hybrid trunking system can be effectively improved.
As for the base cells in which the common-frequency simulcasting technology is superimposed and deployed, the determination can be made according to the group distribution characteristics of each base cell.
In one possible design, the common-frequency simulcasting technology can be deployed by overlapping basic cells with target communication characteristics by judging whether the basic cells in the cellular network have the target communication characteristics; on the contrary, if the target communication characteristics do not exist, the same-frequency simulcasting technology does not need to be overlapped and deployed.
In the embodiment of the present invention, the target communication characteristics may include, but are not limited to: at least one of weak coverage and dense traffic demand.
The weak coverage phenomenon refers to that a coverage area required by a base station is large, the distance between the base stations is too large, or a boundary area signal is weak due to shielding of a building. In the basic cell with weak coverage, the signal strength is low and may be lower than the usable range, which has a direct influence on the call quality.
Dense traffic demand means that the base cell is in an area of high traffic demand. The area with dense traffic demand may be a hot or heavy area, such as an airport, a station, a mall, an elevated station, a provincial boundary, an empty station, a mobile (emergency) station, or a reserved frequency point.
In specific implementation, for the base cell having the target communication characteristic, different design schemes may be adopted according to the target communication characteristic.
Specifically, the first base station may be deployed in a superposed manner in a basic cell with a weak coverage phenomenon, and the first base station and a second base station of the basic cell perform co-frequency and co-broadcast to obtain an all co-frequency and co-broadcast cell. That is, the all co-frequency simulcast cell is obtained by overlapping and deploying the first base station on the basic cell with the weak coverage phenomenon.
The communication signal of the identical frequency simulcast cell is improved by deploying the first base station in consideration of poor communication signal in a basic cell with weak coverage phenomenon, and the requirement that no frequency point is added to a base station can be met.
And overlapping and deploying the same-frequency simulcast channels aiming at the basic cells with the dense telephone traffic demands to obtain partial same-frequency simulcast cells. That is, some co-frequency simulcast cells are obtained by overlapping and deploying co-frequency simulcast channels on a base cell with a dense telephone traffic demand.
For the basic cells with dense telephone traffic demands, the high telephone traffic areas usually have large-group and small-group services in parallel, and the base stations in the areas are designed according to a partial same-frequency simulcasting cell mode, so that the advantages of single-cell multicast and multi-cell same-frequency simulcasting are combined, and the communication demands of the large-group services and the small-group services can be met.
In one particular design, the hybrid cluster system may be a PDT system. Therefore, based on the aforementioned inventive principle, the networking design scheme of the present solution is exemplified below in combination with the networking requirements of the aforementioned PDTS.
In the PDTS, 160 frequency points of 2MHz in PDT can be divided into three types, where the first type is a basic cell frequency point, and occupies 96 frequency points, that is, 12 groups of 8 carrier frequency points; the second type is 24 frequency points of the same frequency simulcast cell, which are 3 groups of 8 carrier frequency points and are mainly used for increasing the capacity of the basic cell; the third type is 40 frequency points of partial same-frequency simulcast cells, and can be arranged at positions such as overhead stations, provincial boundaries, opposite-to-empty stations, mobile (emergency) stations and the like. That is, in PDTS, the basic cell performs networking design according to 8 carriers and a frequency reuse factor of 12, to obtain a basic cellular network; in the telephone traffic dense area, 4 bears are used to form part of co-frequency simulcasting, the frequency point of the basic cell of the cells is 8, and the frequency point of the co-frequency simulcasting service is 8. That is, with the cluster networking scheme provided by the embodiment of the present invention, PDT can be implemented with 8 carrier basic coverage per base station under PDT 2MHz bandwidth, and at the same time, the requirement of 16 carriers in some hot spot areas can be met.
As for the foregoing networking design scheme, the hybrid trunking system finally obtained by the scheme provided in the embodiment of the present invention is configured by overlapping the common-frequency simulcasting technology, and the resource allocation method of downlink data is different from the existing single networking mode.
The resource scheduling device may be responsible for group attribute determination and resource allocation according to the allocation relationship of each group in the whole network cell, which may also be referred to as: group attribution and distribution function module. That is, how to perform resource scheduling is related to the cell type attribute.
It should be noted that the resource scheduling apparatus may be a virtual program, or may be a processor that includes and is capable of running the virtual program. It may be specifically located in one or more cells in the overall network, or alternatively, on an overall server of the overall network.
Specifically, referring to fig. 2, the resource scheduling method may include the following steps:
s202, receiving a called request aiming at a called terminal, wherein the called terminal belongs to the mixed cluster system.
And S204, judging the cell type of the called terminal.
S206, according to the cell type, allocating communication resources for the called request and initiating the called to the called terminal.
In the foregoing networking scheme designed in the embodiment of the present invention, the cell type to which the called end belongs may include: a basic cell, an all co-frequency co-broadcasting cell or a partial co-frequency co-broadcasting cell.
Based on different types, at least three processing modes can be used for the three cell types as follows:
first, if the cell type to which the called terminal belongs is a basic cell, resource allocation and data forwarding can be performed directly following the single-cell multicast mode.
Secondly, if the cell type to which the called terminal belongs is the same frequency cell, the same frequency cell belongs to the basic cell, so that the resource allocation and data forwarding can be realized in the same way as the basic cell. When the method is specifically realized, the method can be realized through the following steps: and allocating frequency points for the first base station additionally arranged in the identical frequency simulcasting cell. It can be known that the frequency point is consistent with the frequency point of the base cell to which the frequency point belongs.
Thirdly, if the cell type to which the called terminal belongs is a partial co-frequency simulcast cell, the channel can be allocated to the called request according to the group belonging condition of the called terminal and the channel remaining condition in the partial co-frequency simulcast cell.
At this time, referring to fig. 3, the method may specifically include the following steps:
s2062, judging whether the number of the cells of the called terminal is greater than a preset number threshold value, if so, executing S2064; if not, go to S2066.
S2064, judging whether available same-frequency simulcast channels exist or not, if so, executing S2068; if not, go to S20610.
S2066, judging whether an available single cell multicast channel exists; if yes, go to S20610; if not, go to S2068.
S2068, distributing available same-frequency simulcast channels for the called request;
s20610, allocating an available single-cell multicast channel for the called request.
Wherein, the number threshold is used for judging whether the part of the same-frequency simulcast cell groups form a large group. Taking the hybrid trunking system shown in fig. 1 as an example, if the called end is in cell C000, the number of cells it belongs to is 4, that is, it belongs to a group consisting of 4 partial co-frequency simulcast cells.
Then, comparing the number of the cells of the group with a number threshold, if the number is greater than the number threshold, indicating that the group is a large group, adopting a same-frequency simulcasting mode to be more favorable for saving air interface physical resources, and preferentially allocating a same-frequency simulcasting channel to the group; and if no common-frequency simulcast channel is available, a single-cell multicast channel is allocated to the common-frequency simulcast channel. On the contrary, if the number of the cells of the group is less than or equal to the number threshold, the group is a small group, and the single-cell multicast mode is adopted to be more favorable for saving air interface physical resources, so that a single-cell multicast channel is preferentially allocated to the group; and if no single-cell multicast channel is available, allocating the same-frequency simulcast channel for the single-cell multicast channel.
Still taking the networking scheme of the PDTS as an example, the number threshold may be set to 2, and if the number of the base stations to which the PDTS belongs is greater than 2, the same-frequency simulcast channel is preferentially adopted for data forwarding.
The resource allocation scheme shown in fig. 3 can allocate a channel to a called party in combination with the group affiliation condition of the called party and the channel remaining condition in a part of co-frequency simulcast cells, and this allocation formula better conforms to the group characteristics and saves air interface physical resources.
In addition, it should be noted that the method for cluster networking provided in the embodiment of the present invention is not only suitable for initial networking, but also can further superpose and deploy the same-frequency simulcast technology in the existing hybrid cluster networking system if the hybrid cluster networking system is already constructed according to the present solution and the requirement for further capacity expansion is involved. At this time, it may include: and overlapping and deploying the same-frequency simulcast base station and/or the same-frequency simulcast channel in the basic cell, or overlapping and deploying the same-frequency simulcast channel in the all-same-frequency simulcast cell.
The Base Station related to the embodiment of the present invention may be a Base Transceiver Station (BTS) and/or a Base Station Controller in GSM or CDMA, a Base Station (NodeB, NB) and/or a Radio Network Controller (RNC) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, or a relay Station or an access point, or a Base Station (gbb) in a future 5G Network, and the present invention is not limited thereto.
It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.
The embodiment of the invention also provides a resource scheduling device, which can be applied to the hybrid cluster system of any implementation mode.
Specifically, referring to fig. 4, the resource scheduling apparatus 400 includes:
a receiving module 41, configured to receive a called request for a called end, where the called end belongs to the hybrid cluster system;
a judging module 42, configured to judge a cell type to which the called end belongs;
an allocating module 43, configured to allocate communication resources for the called request according to the cell type;
and the calling module 44 is used for initiating a called party to the called terminal.
In a possible design, if the cell type is a partial co-frequency simulcast cell, the allocating module 43 is configured to:
and allocating a channel for the called request according to the group attribution condition of the called terminal and the channel residual condition in the part of the same-frequency simulcast cells.
In another possible design, the allocating module 43 is specifically configured to:
if the number of the cells of the called terminal is larger than a preset number threshold, judging whether available common-frequency simulcast channels exist;
if yes, distributing the available same-frequency simulcast channels for the called request;
if not, distributing the available single-cell multicast channel for the called request.
In another possible design, the allocating module 43 is specifically configured to:
if the number of the cells of the called terminal is less than or equal to a preset number threshold, judging whether an available single-cell multicast channel exists;
if yes, distributing the available single-cell multicast channel for the called request;
if not, distributing available same-frequency simulcast channels for the called request.
In addition, in another possible design, if the cell type is an all-co-frequency simulcast cell, the allocating module 43 is specifically configured to:
and allocating frequency points for the first base station additionally arranged in the all-same-frequency simulcasting cell.
The embodiment of the invention also provides a resource scheduling device, which can be applied to the hybrid cluster system of any implementation mode.
Specifically, referring to fig. 5, the resource scheduling apparatus 500 includes:
a memory 510;
a processor 520; and
a computer program;
wherein the computer program is stored in the memory 510 and configured to be executed by the processor 520 to implement the resource scheduling method according to the above embodiment.
In addition, as shown in fig. 5, the resource scheduling apparatus 500 is further provided with a transceiver 530 for performing data transmission or communication with other devices, which is not described herein again.
Furthermore, an embodiment of the present invention provides a readable storage medium, on which a computer program is stored,
the computer program is executed by a processor to implement the resource scheduling method as described in the above embodiments.
The technical scheme provided by the embodiment of the invention at least has the following technical effects:
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 application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the 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.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (18)
1. A hybrid cluster system, comprising:
the base cells are constructed into a cellular network, and the base cells adopt a single-cell multicast mode to distribute downlink resources;
a co-frequency simulcast cell, wherein the co-frequency simulcast cell is obtained by overlapping deployment of a co-frequency simulcast technology on a part of the basic cells in a cellular network, and the co-frequency simulcast technology comprises: at least one of a base station and a channel;
and the resource scheduling device is used for realizing the resource scheduling and the information forwarding of the hybrid cluster system.
2. The system of claim 1, wherein the co-frequency simulcast cell comprises: at least one of an all co-frequency simulcast cell and a partial co-frequency simulcast cell.
3. The system according to claim 2, wherein the all-co-frequency simulcast cell is obtained by overlapping deployment of a first base station on a basic cell with weak coverage phenomenon;
and the first base station and the second base station of the basic cell broadcast at the same frequency.
4. The system of claim 2, wherein the portion of co-frequency simulcast cells are obtained by overlapping deployment of co-frequency simulcast channels on a base cell with a dense traffic demand.
5. The system according to claim 4, wherein the partial same-frequency simulcast cell includes N + M frequency points, where N-1 is the number of pilot frequency service frequency points of an original base cell, M is the number of frequency points of the same-frequency simulcast channel, 1 is the number of master frequency control points, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 1.
6. The system of claim 1, wherein said hybrid cluster system is a professional digital cluster PDT system.
7. A resource scheduling method applied to the hybrid cluster system of any one of claims 1 to 6, executed in the resource scheduling apparatus, the method comprising:
receiving a called request aiming at a called terminal, wherein the called terminal belongs to the mixed cluster system;
judging the cell type to which the called terminal belongs;
and allocating communication resources for the called request according to the cell type, and initiating a called party to the called terminal.
8. The method according to claim 7, wherein if the cell type is a partial co-frequency simulcast cell, the allocating communication resources to the called request according to the cell type comprises:
and allocating a channel for the called request according to the group attribution condition of the called terminal and the channel residual condition in the part of the same-frequency simulcast cells.
9. The method according to claim 8, wherein said allocating channels for the called request according to the group affiliation condition of the called terminal and the channel remaining condition in the partially co-frequency simulcast cell comprises:
if the number of the cells of the called terminal is larger than a preset number threshold, judging whether available common-frequency simulcast channels exist;
if yes, distributing the available same-frequency simulcast channels for the called request;
if not, distributing the available single-cell multicast channel for the called request.
10. The method according to claim 8, wherein said allocating channels for the called request according to the group affiliation condition of the called terminal and the channel remaining condition in the partially co-frequency simulcast cell comprises:
if the number of the cells of the called terminal is less than or equal to a preset number threshold, judging whether an available single-cell multicast channel exists;
if yes, distributing the available single-cell multicast channel for the called request;
if not, distributing available same-frequency simulcast channels for the called request.
11. The method of claim 7, wherein if the cell type is an all co-frequency simulcast cell, the allocating communication resources for the called request according to the cell type comprises:
and allocating frequency points for the first base station additionally arranged in the all-same-frequency simulcasting cell.
12. A resource scheduling apparatus, applied to the hybrid cluster system of any one of claims 1 to 6, the apparatus comprising:
a receiving module, configured to receive a called request for a called end, where the called end belongs to the hybrid cluster system;
the judging module is used for judging the cell type to which the called terminal belongs;
an allocation module, configured to allocate communication resources to the called request according to the cell type;
and the calling module is used for initiating a called party to the called terminal.
13. The apparatus of claim 12, wherein if the cell type is a partial co-frequency simulcast cell, the allocating module is configured to:
and allocating a channel for the called request according to the group attribution condition of the called terminal and the channel residual condition in the part of the same-frequency simulcast cells.
14. The apparatus according to claim 13, wherein the allocation module is specifically configured to:
if the number of the cells of the called terminal is larger than a preset number threshold, judging whether available common-frequency simulcast channels exist;
if yes, distributing the available same-frequency simulcast channels for the called request;
if not, distributing the available single-cell multicast channel for the called request.
15. The apparatus according to claim 13, wherein the allocation module is specifically configured to:
if the number of the cells of the called terminal is less than or equal to a preset number threshold, judging whether an available single-cell multicast channel exists;
if yes, distributing the available single-cell multicast channel for the called request;
if not, distributing available same-frequency simulcast channels for the called request.
16. The apparatus of claim 12, wherein if the cell type is an all co-frequency simulcast cell, the allocating module is specifically configured to:
and allocating frequency points for the first base station additionally arranged in the all-same-frequency simulcasting cell.
17. An apparatus for scheduling resources, the apparatus comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any of claims 7 to 11.
18. A computer-readable storage medium, having stored thereon a computer program,
the computer program is executed by a processor to implement the method of any one of claims 7 to 11.
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