CN108616821B - Access method and device of cluster service - Google Patents
Access method and device of cluster service Download PDFInfo
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- CN108616821B CN108616821B CN201611188530.9A CN201611188530A CN108616821B CN 108616821 B CN108616821 B CN 108616821B CN 201611188530 A CN201611188530 A CN 201611188530A CN 108616821 B CN108616821 B CN 108616821B
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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
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
Abstract
The invention provides a cluster service access method and a cluster service access device. The access method of the cluster service comprises the following steps: receiving a trunking service admission request sent by a core network, wherein the trunking service admission request comprises a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed; acquiring service rate which can be admitted by currently available cluster resources of each first cell according to the identifier of each first cell; judging whether a second cell with the service rate which can be admitted by the currently available cluster resources and is greater than or equal to the GBR of the first cluster services exists in at least one first cell; and if so, establishing a communication link between the base station and the terminal equipment corresponding to the second cell so as to enable the first cluster service to be accessed to the second cell. The access method and the access device of the cluster service effectively prevent the congestion of a cluster service system through the judgment of the access cell.
Description
Technical Field
The present invention relates to communication engineering technologies, and in particular, to a method and an apparatus for accessing a cluster service.
Background
In order To better promote the development and standardization of the trunking network, a single cell Point To multiple system (SC-PTM) protocol is introduced into the third Generation mobile communication Partnership Project (3rd Generation Partnership Project, 3GPP), and the protocol is based on a Physical Downlink Shared Channel (PDSCH), and two logical channels, namely a single cell broadcast Control Channel (SC-MCCH) and a single cell broadcast Traffic Channel (SC-MTCH), are introduced for transmitting Control plane data and user plane data of trunking users.
In the prior art, due to the limitation of cell capacity, if all services are admitted, the Quality of Service (Quality of Service, abbreviated as QoS) required by each Service cannot be guaranteed, so a unicast Service cell access method is provided. That is, the method for accessing a cell by a unicast service in the prior art guarantees QoS of the accessed unicast service in the cell by rejecting admission of a part of the service, so as to prevent system congestion of the unicast service to a certain extent.
However, the trunking service is a typical broadcast service, and since there is no uplink feedback, it is not possible to accurately count the data that is effectively transmitted, and the unicast service access cell method based on the satisfaction rate in the prior art is mainly directed to the unicast service and is not suitable for the trunking service in the SC-PTM protocol, therefore, it is not possible to effectively prevent the system congestion of the trunking service.
Disclosure of Invention
The invention provides a cluster service access method and a cluster service access device, which are used for solving the technical problem that no cluster service access method for preventing system congestion of cluster services exists in the prior art.
The invention provides an access method of a cluster service, which is applied to a base station and comprises the following steps:
receiving a trunking service admission request sent by a core network, wherein the trunking service admission request comprises a Guaranteed Bit Rate (GBR) of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed;
acquiring service rate which can be admitted by currently available cluster resources of each first cell according to the identifier of each first cell;
judging whether a second cell with the admissible traffic rate of the currently available cluster resources being greater than or equal to the GBR of the first cluster traffic exists in the at least one first cell;
if so, establishing a communication link between the base station and the terminal equipment corresponding to the second cell so as to enable the first cluster service to access the second cell.
As described above, the obtaining, according to the identifier of each first cell, an admissible service rate of currently available cluster resources of each first cell includes:
and acquiring the service rate R which can be admitted by the currently available cluster resources of each first cell according to the number of downlink Resource Blocks (RB) in each wireless frame and the identification of each first cell.
In the above method, the obtaining, according to the number of downlink resource blocks RB in each radio frame and the identifier of each first cell, a service rate R at which cluster resources currently available for each first cell can be admitted includes:
obtaining the R through the following formula I:
r ═ (number of downlink resource blocks RB in each radio frame × ratio of cell resources available to the trunking service — average number of RBs occupied per radio frame by the trunking service accessed by the cell corresponding to the identifier of the first cell)/100 × service rate bearable by 100 RBs corresponding to the current modulation and coding strategy MCS order;
the proportion of the cell resources available for the trunking service is a preset value.
Before obtaining, according to the number of downlink resource blocks RB in each radio frame and the identifier of each first cell, a service rate R at which cluster resources currently available for each first cell can be admitted, the method further includes:
acquiring the average number of RBs occupied by each wireless frame of cluster services accessed to the cell corresponding to the identifier of the first cell;
and acquiring the current MCS order and the service rate which can be borne by 100 RBs and corresponds to the current MCS order.
As described above, before obtaining the current MCS order, the method further includes:
acquiring an MCS order setting instruction;
obtaining a first MCS order according to the MCS order setting instruction;
adjusting the first MCS order according to the number of users corresponding to the trunking service every other preset period to obtain an adjusted first MCS order;
the obtaining of the current MCS order includes:
and acquiring the current MCS order according to the adjusted first MCS order.
The method for acquiring the service rate that the 100 RBs corresponding to the current MCS order can carry includes:
acquiring the corresponding relation between each MCS order and the service rate which can be borne by 100 RBs;
and determining the service rate which can be borne by 100 RBs corresponding to the current MCS order according to the corresponding relation and the current MCS order.
The method as described above, after the establishing a communication link between the base station and the terminal device corresponding to the second cell so that the first trunking service accesses the second cell, further includes:
and sending a first reply message to the core network, wherein the first reply message is used for indicating that the first trunking service successfully accesses the cell.
In the method, if there is no target cell in the at least one first cell for which the admissible traffic rate of currently available cluster resources is greater than or equal to the GBR of the first cluster traffic, a second reply message is sent to the core network, where the second reply message is used to indicate that the first cluster traffic fails to admit the cell.
The invention also provides an access device of the cluster service, which comprises:
a receiving module, configured to receive a trunking service admission request sent by a core network, where the trunking service admission request includes a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed;
an obtaining module, configured to obtain, according to an identifier of each first cell, a service rate at which cluster resources currently available for each first cell can be admitted;
a determining module, configured to determine whether a second cell exists in the at least one first cell, where a service rate at which a currently available cluster resource is admissible is greater than or equal to a GBR of the first cluster service;
and if a second cell with an admissible traffic rate of currently available cluster resources greater than or equal to the GBR of the first cluster traffic exists in the at least one first cell, the communication link establishing module is configured to establish a communication link between a base station and a terminal device corresponding to the second cell, so that the first cluster traffic is accessed to the second cell.
In the foregoing apparatus, the obtaining module is specifically configured to obtain, by using a first formula as follows:
r ═ (number of downlink resource blocks RB in each radio frame × ratio of cell resources available to the trunking service — average number of RBs occupied per radio frame by the trunking service accessed by the cell corresponding to the identifier of the first cell)/100 × service rate bearable by 100 RBs corresponding to the current modulation and coding strategy MCS order;
the proportion of the cell resources available for the trunking service is a preset value.
The apparatus as described above, further comprising:
a sending module, configured to send a first reply message to the core network, where the first reply message is used to indicate that the first trunking service successfully accesses the cell.
In the apparatus as described above, if there is no target cell in the at least one first cell for which an admissible traffic rate of currently available cluster resources is greater than or equal to a GBR of the first cluster traffic, the sending module is further configured to send a second reply message to the core network, where the second reply message is used to indicate that the first cluster traffic fails to admit the cell.
The invention provides a cluster service access method and a cluster service access device. The access method of the cluster service comprises the following steps: receiving a trunking service admission request sent by a core network, wherein the trunking service admission request comprises a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed; acquiring service rate which can be admitted by currently available cluster resources of each first cell according to the identifier of each first cell; judging whether a second cell with the service rate which can be admitted by the currently available cluster resources and is greater than or equal to the GBR of the first cluster services exists in at least one first cell; and if so, establishing a communication link between the base station and the terminal equipment corresponding to the second cell so as to enable the first cluster service to be accessed to the second cell. According to the access method and device of the cluster service, the cluster service can only be accessed to the cell with the service rate which can be admitted by the currently available cluster resource and is greater than or equal to the GBR of the cluster service system through the judgment of the access cell, so that the congestion of the cluster service system is effectively prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an application scenario provided by the present invention;
fig. 2 is a first flowchart of an access method of a cluster service provided in the present invention;
fig. 3 is a flowchart illustrating a second method for accessing a cluster service according to the present invention;
fig. 4 is a schematic structural diagram of a first embodiment of an access device for a cluster service provided in the present invention;
fig. 5 is a schematic structural diagram of a second embodiment of an access device for a cluster service provided in the present invention;
fig. 6 is a schematic structural diagram of a third embodiment of an access device for cluster services provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The trunking service is a typical broadcast service, and because there is no uplink feedback, it is unable to accurately count effectively transmitted data, and the unicast service access cell method based on satisfaction rate in the prior art is mainly directed to unicast service, and is not suitable for trunking service in SC-PTM protocol, therefore, it is unable to effectively prevent system congestion of trunking service. The invention provides an access method aiming at the trunking service in the SC-PTM protocol, which can effectively prevent the system congestion of the trunking service. Fig. 1 is a schematic view of an application scenario provided by the present invention, referring to fig. 1, when a user wants to initiate a new trunking service, the trunking service needs to be accessed to a cell a and a cell B, the user sends a message for establishing the trunking service to a core network through a terminal device, the core network sends a trunking service admission request to a base station, the base station determines whether the trunking service is admitted to the cell a and the cell B, and if the trunking service is admitted, the trunking service is admitted to the cell a and the cell B, so that congestion of a trunking service system can be prevented. The access method of the cluster service of the present invention is explained in detail below.
Fig. 2 is a first flowchart of an access method of a trunking service provided in the present invention, which is applied to a base station, as shown in fig. 2, the method of this embodiment may include:
step S101, receiving a trunking service admission request sent by a core network, wherein the trunking service admission request comprises a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed;
step S102, acquiring service rate which can be admitted by currently available cluster resources of each first cell according to the identification of each first cell;
step S103, judging whether a second cell with the service rate which can be admitted by the currently available cluster resources and is greater than or equal to the GBR of the first cluster service exists in at least one first cell; if yes, executing step S104, otherwise, executing step S105;
step S104, a communication link is established between the base station and the terminal equipment corresponding to the second cell, so that the first cluster service is accessed to the second cell.
Step S105, a second reply message is sent to the core network, and the second reply message is used for indicating the failure of the first cluster service to access the cell
Specifically, as described above, when a user wants to newly initiate a trunking service, the user may send a message for establishing the trunking service to the core network through the terminal device, and after receiving the message for establishing the trunking service, the core network sends a trunking service admission request to the base station, where the trunking service admission request includes a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed, where the first trunking service is the trunking service that the user wants to newly initiate; the base station receives a trunking service admission request sent by a core network, and obtains a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed, for example, the first trunking service needs to be accessed to A, B two cells, A, B two cells are cells under the same base station, that is, in a session process of the trunking service, a user initiating the trunking service is a speaker, and a terminal user of A, B cells is a listener.
After the base station receives the cluster service admission request sent by the core network, the base station obtains, according to the identifier of each first cell, the service rate at which the currently available cluster resources of each first cell can be admitted, that is, obtains A, B the service rate at which the currently available cluster resources of two cells can be admitted, respectively.
After the base station obtains the service rate that the currently available cluster resource of each first cell can be admitted, it is determined whether a second cell exists in at least one first cell, where the service rate that the currently available cluster resource can be admitted is greater than or equal to the GBR of the first cluster service, that is, it is determined whether the first cluster service meets the conditions for admitting the a cell or the B cell.
And if a second cell with the service rate which can be admitted by the currently available cluster resources and is greater than or equal to the GBR of the first cluster services exists in at least one first cell, establishing a communication link between the base station and terminal equipment corresponding to the second cell so as to enable the first cluster services to be accessed into the second cell. For example, the GBR of the first trunking service is less than the admissible service rate of the currently available trunking resource of the a cell, which indicates that the first trunking service is successfully admitted to the a cell, and the GBR of the first trunking service is greater than the admissible service rate of the currently available trunking resource of the B cell, which indicates that the first trunking service is unsuccessfully admitted to the B cell, in this case, there is a second cell a in which the admissible service rate of the currently available trunking resource is greater than the GBR of the first trunking service in at least one first cell, and the base station establishes a bearer and allocates air interface resources for the first trunking service, that is, a communication link is established between the base station and the terminal device corresponding to the cell a, so that the first trunking service is admitted to the cell a; because the admission of the first cluster service to the B cell fails, the first cluster service cannot access the B cell. For example, the GBR of the first cluster service is less than the admissible service rate of the currently available cluster resource of the cell a, which indicates that the first cluster service is successfully admitted to the cell a, the GBR of the first cluster service is less than the admissible service rate of the currently available cluster resource of the cell B, which indicates that the first cluster service is successfully admitted to the cell B, in this case, a second cell a and a cell B exist in at least one first cell, which have admissible service rates of the currently available cluster resource greater than the GBR of the first cluster service, and the base station establishes a bearer and allocates air interface resources for the first cluster service, that is, a communication link is established between the base station and terminal devices corresponding to the cell a and the cell B, so that the first cluster service is accessed to the cell a and the cell B.
Through the admission judgment, the cluster service can be effectively prevented from entering the cell which cannot accommodate the service data transmission of the cluster service, and the system congestion of the cluster service is prevented.
And establishing a communication link between the base station and the terminal equipment corresponding to the cell so that the base station sends a first reply message to the core network after the first trunking service is accessed to the second cell, wherein the first reply message is used for indicating that the first trunking service is successfully accessed to the cell. That is, as long as the first trunking service is successfully accessed to one cell, the core network will receive the message that the first trunking service is successfully accessed.
In addition, if there is no target cell in the at least one first cell for which the admissible traffic rate of the currently available cluster resources is greater than or equal to the GBR of the first cluster traffic, a second reply message is sent to the core network, where the second reply message is used to indicate that the first cluster traffic fails to admit the cell. For example, the GBR of the first trunking service is greater than the admissible traffic rate of the currently available trunking resource of the cell a, and the GBR of the first trunking service is also greater than the admissible traffic rate of the currently available trunking resource of the cell B, then the first trunking service cannot access any cell, and the base station will send a second reply message indicating that the first trunking service has failed to admit the cell to the core network.
The access method of the cluster service in the embodiment includes: receiving a trunking service admission request sent by a core network, wherein the trunking service admission request comprises a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed; acquiring service rate which can be admitted by currently available cluster resources of each first cell according to the identifier of each first cell; judging whether a second cell with the service rate which can be admitted by the currently available cluster resources and is greater than or equal to the GBR of the first cluster services exists in at least one first cell; and if so, establishing a communication link between the base station and the terminal equipment corresponding to the second cell so as to enable the first cluster service to be accessed to the second cell. In the method for accessing cluster services in this embodiment, through the judgment of the admission cell, the cluster services can only access the cell in which the admissible service rate of the currently available cluster resources is greater than or equal to the GBR of the cluster services, thereby effectively preventing congestion of the cluster service system.
The above embodiment will be described in detail with reference to specific examples.
Fig. 3 is a second flowchart of an access method of a cluster service provided in the present invention, and as shown in fig. 3, the method of this embodiment is a specific method for "obtaining an admissible service rate of cluster resources currently available in each first cell", and the method of this embodiment may include:
step S201, acquiring the average number of RBs occupied by each wireless frame of cluster services accessed to a cell corresponding to the identifier of the first cell;
step S202, obtaining the current MCS order and the service rate which can be borne by 100 RBs and corresponds to the current MCS order;
step S203, acquiring the service rate that the cluster resource currently available for the first cell can be admitted to according to the number of downlink Resource Blocks (RBs) in each wireless frame, the average number of RBs occupied by each wireless frame for the cluster service accessed by the cell corresponding to the identifier of the first cell, and the service rate that 100 RBs can bear corresponding to the current MCS order.
Specifically, after receiving the cluster service admission request, the base station sequentially obtains the service rate at which the currently available cluster resources of each first cell can be admitted according to the identifier of the first cell in the cluster service admission request.
The number of RBs occupied by the average radio frame of the cluster service accessed by the cell corresponding to the identifier of the first cell (i.e., the number of RBs occupied by the average radio frame of the cluster service accessed by the first cell) is obtained by measuring, by the base station, the measuring method is a method in the prior art, and is not described in detail in this embodiment.
Before the method for obtaining the current MCS order, a user inputs an MCS order setting instruction through auxiliary equipment, a base station receives the MCS order setting instruction sent by the auxiliary equipment, namely the MCS order setting instruction is obtained, and then the base station obtains a first MCS order according to the MCS order setting instruction; wherein, the first MCS order is a static MCS order, which is an MCS order initially configured for the base station. However, since the trunking services accessed at different times in each cell under the base station may be different, the number of users corresponding to the trunking services may be different, and therefore, the base station adjusts the first MCS order according to the number of users corresponding to the trunking services every preset period to obtain the adjusted first MCS order; then, the base station obtains the current MCS order according to the adjusted first MCS order.
The service rate that can be carried by 100 RBs corresponding to the current MCS order includes: acquiring the corresponding relation between each MCS order and the service rate which can be borne by 100 RBs; and determining the service rate which can be borne by 100 RBs corresponding to the current MCS order according to the corresponding relation and the current MCS order.
Specifically, the correspondence between each MCS order and the service rate that can be carried by 100 RBs can be stored in the form of a correspondence table, specifically see table 1.
TABLE 1, MCS order and 100 RB bearable service rate corresponding relation table
Referring to table 1, if the current MCS order is 16, the service rate that can be carried by 100 RBs corresponding to the current MCS order is 2.92 Mbps.
After the average number of RBs occupied by each radio frame of the cluster service accessed by the cell corresponding to the identifier of the first cell and the service rate bearable by 100 RBs corresponding to the current MCS order are obtained, the service rate to which the cluster resource currently available for each first cell can be admitted can be obtained according to the number of downlink resource blocks RB in each radio frame, the average number of RBs occupied by each radio frame of the cluster service accessed by the cell corresponding to the identifier of the first cell and the service rate bearable by 100 RBs corresponding to the current MCS order.
Specifically, obtaining the service rate R that the currently available cluster resource of each first cell can be admitted to includes:
obtaining R through the following formula I:
r ═ (number of downlink resource blocks RB in each radio frame × ratio of cell resources available to the trunking service — average number of RBs occupied per radio frame by the trunking service accessed by the cell corresponding to the identifier of the first cell)/100 × service rate bearable by 100 RBs corresponding to the current modulation and coding strategy MCS order;
wherein, the number of downlink Resource Blocks (RB) in each wireless frame is specified in the 3GPP protocol. The proportion of the cell resources available to the cluster service is a preset value, and the preset value is set according to different project groups. In an actual application scenario, different project groups are provided, such as subway projects, city projects, and mountain projects; for urban projects, 60% is preferred.
In this embodiment, by obtaining the service rate R at which the currently available cluster resource of each first cell can be admitted, the GBR of the first cluster service is determined, so that whether the first cluster service is admitted to the first cell can be determined.
Fig. 4 is a schematic structural diagram of a first embodiment of a trunking service access apparatus provided in the present invention, and as shown in fig. 4, the apparatus of this embodiment may include: the system comprises a receiving module 41, an obtaining module 42, a judging module 43 and a communication link establishing module 44, wherein the receiving module 41 is configured to receive a trunking service admission request sent by a core network, and the trunking service admission request includes a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed; the obtaining module 42 is configured to obtain, according to the identifier of each first cell, a service rate at which cluster resources currently available in each first cell can be admitted; the judging module 43 is configured to judge whether there is a second cell in the at least one first cell, where the admissible traffic rate of the currently available cluster resource is greater than or equal to the GBR of the first cluster traffic; the communication link establishing module 44 is configured to, if there is a second cell in the at least one first cell, where a service rate admissible by currently available cluster resources is greater than or equal to a GBR of the first cluster service, establish a communication link between the base station and a terminal device corresponding to the second cell, so that the first cluster service is accessed to the second cell.
The obtaining module 42 is specifically configured to obtain a service rate R that can be admitted to a currently available cluster resource of the first cell by using the following formula:
r ═ (number of downlink resource blocks RB in each radio frame × ratio of cell resources available to the trunking service — average number of RBs occupied per radio frame by the trunking service accessed by the cell corresponding to the identifier of the first cell)/100 × service rate bearable by 100 RBs corresponding to the current modulation and coding strategy MCS order;
the proportion of the cell resources available for the trunking service is a preset value.
The obtaining module 42 is further configured to obtain an average number of RBs occupied by each radio frame of the cluster service accessed by the cell corresponding to the identifier of the first cell; and acquiring the current MCS order and the service rate which can be borne by 100 RBs and corresponds to the current MCS order.
Specifically, the obtaining module 42 is specifically configured to obtain a corresponding relationship between each MCS order and a service rate that can be borne by 100 RBs, and determine the service rate that can be borne by 100 RBs and corresponds to the current MCS order according to the corresponding relationship and the current MCS order.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 5 is a schematic structural diagram of a second embodiment of an access device for cluster services provided in the present invention, and as shown in fig. 5, the device of this embodiment may further include, on the basis of the device structure shown in fig. 4: an adjustment module 45; the obtaining module 42 is further configured to obtain an MCS order setting instruction, and obtain a first MCS order according to the MCS order setting instruction; the adjusting module 45 is configured to adjust the first MCS order according to the number of users corresponding to the trunking service every other preset period, so as to obtain an adjusted first MCS order; the obtaining module 42 is specifically configured to obtain the current MCS order according to the adjusted first MCS order.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 6 is a schematic structural diagram of a third embodiment of an access device for a cluster service provided in the present invention, as shown in fig. 6, the device of this embodiment may further include, on the basis of the device structure shown in fig. 5: a sending module 46; the sending module 46 is configured to send a first reply message to the core network, where the first reply message is used to indicate that the first trunking service successfully accesses the cell; if there is no target cell in the at least one first cell for which the admissible traffic rate of the currently available cluster resource is greater than or equal to the GBR of the first cluster traffic, the sending module is further configured to send a second reply message to the core network, where the second reply message is used to indicate that the first cluster traffic fails to admit the cell.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An access method of a trunking service, which is applied to a base station, includes:
receiving a trunking service admission request sent by a core network, wherein the trunking service admission request comprises a Guaranteed Bit Rate (GBR) of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed;
acquiring an admissible service rate R of currently available cluster resources of the first cell by the following formula I: r ═ (number of downlink resource blocks RB in each radio frame × ratio of cell resources available to the trunking service — average number of RBs occupied per radio frame by the trunking service accessed by the cell corresponding to the identifier of the first cell)/100 × service rate bearable by 100 RBs corresponding to the current modulation and coding strategy MCS order; the proportion of the cell resources available for the cluster service is a preset value;
judging whether a second cell with the admissible traffic rate of the currently available cluster resources being greater than or equal to the GBR of the first cluster traffic exists in the at least one first cell;
if so, establishing a communication link between the base station and the terminal equipment corresponding to the second cell so as to enable the first cluster service to access the second cell.
2. The method of claim 1, wherein before obtaining the admissible traffic rate R of cluster resources currently available to each first cell according to the number of downlink resource blocks RB in each radio frame and the identifier of each first cell, the method further comprises:
acquiring the average number of RBs occupied by each wireless frame of cluster services accessed to the cell corresponding to the identifier of the first cell;
and acquiring the current MCS order and the service rate which can be borne by 100 RBs and corresponds to the current MCS order.
3. The method of claim 2, wherein before obtaining the current MCS order, the method further comprises:
acquiring an MCS order setting instruction;
obtaining a first MCS order according to the MCS order setting instruction;
adjusting the first MCS order according to the number of users corresponding to the trunking service every other preset period to obtain an adjusted first MCS order;
the obtaining of the current MCS order includes:
and acquiring the current MCS order according to the adjusted first MCS order.
4. The method of claim 2, wherein obtaining the service rate that can be carried by 100 RBs corresponding to the current MCS order comprises:
acquiring the corresponding relation between each MCS order and the service rate which can be borne by 100 RBs;
and determining the service rate which can be borne by 100 RBs corresponding to the current MCS order according to the corresponding relation and the current MCS order.
5. The method of claim 1, wherein after the establishing a communication link between the base station and a terminal device corresponding to the second cell to enable the first cluster service to access the second cell, the method further comprises:
and sending a first reply message to the core network, wherein the first reply message is used for indicating that the first trunking service successfully accesses the cell.
6. The method of claim 1, wherein if there is no target cell in the at least one first cell for which the currently available cluster resource admissible traffic rate is greater than or equal to the GBR of the first cluster traffic, sending a second reply message to the core network, the second reply message indicating that the first cluster traffic admission cell failed.
7. An access device for cluster services, comprising:
a receiving module, configured to receive a trunking service admission request sent by a core network, where the trunking service admission request includes a guaranteed bit rate GBR of a first trunking service and an identifier of at least one first cell to which the first trunking service is to be accessed;
an obtaining module, configured to obtain a service rate R that can be admitted to the currently available cluster resource of the first cell according to a first formula: r ═ (number of downlink resource blocks RB in each radio frame × ratio of cell resources available to the trunking service — average number of RBs occupied per radio frame by the trunking service accessed by the cell corresponding to the identifier of the first cell)/100 × service rate bearable by 100 RBs corresponding to the current modulation and coding strategy MCS order; the proportion of the cell resources available for the cluster service is a preset value;
a judging module, configured to judge whether a second cell in the at least one first cell exists, where a service rate at which a currently available cluster resource is admissible is greater than or equal to a GBR of the first cluster service;
and if a second cell with an admissible traffic rate of currently available cluster resources greater than or equal to the GBR of the first cluster traffic exists in the at least one first cell, the communication link establishing module is configured to establish a communication link between a base station and a terminal device corresponding to the second cell, so that the first cluster traffic is accessed to the second cell.
8. The apparatus of claim 7, further comprising:
a sending module, configured to send a first reply message to the core network, where the first reply message is used to indicate that the first trunking service successfully accesses the cell.
9. The apparatus of claim 8, wherein if there is no target cell in the at least one first cell for which the currently available cluster resource is admissible at a traffic rate greater than or equal to the GBR of the first cluster traffic, the sending module is further configured to send a second reply message to the core network, the second reply message indicating that the first cluster traffic admission cell failed.
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| CN101553016A (en) * | 2009-05-14 | 2009-10-07 | 华为技术有限公司 | Method and apparatus for cell switching |
| CN103906147A (en) * | 2012-12-25 | 2014-07-02 | 电信科学技术研究院 | Method and device for determining target cell |
| CN105578382A (en) * | 2014-11-06 | 2016-05-11 | 中兴通讯股份有限公司 | Resource acquisition method and device, resource configuration method and device, resource pool configuration method and device |
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| CN101553016A (en) * | 2009-05-14 | 2009-10-07 | 华为技术有限公司 | Method and apparatus for cell switching |
| CN103906147A (en) * | 2012-12-25 | 2014-07-02 | 电信科学技术研究院 | Method and device for determining target cell |
| CN105578382A (en) * | 2014-11-06 | 2016-05-11 | 中兴通讯股份有限公司 | Resource acquisition method and device, resource configuration method and device, resource pool configuration method and device |
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