CN107466106A - A kind of method of wireless heterogeneous networks functional entity and its processing data - Google Patents
A kind of method of wireless heterogeneous networks functional entity and its processing data Download PDFInfo
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- 210000004027 cell Anatomy 0.000 claims description 160
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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Abstract
The embodiment of the invention discloses a kind of method of radio resource control RRC functional entity processing data, methods described includes：RRC functional entitys obtain the information of radio resource allocation of at least one cell when monitoring the signaling manipulation for UE；The information of radio resource allocation of the RRC functional entitys based on acquisition, cell radio resource is distributed for the UE；The cell radio resource is：The Radio Resource for the N number of cell chosen in cell corresponding to information of radio resource allocation in acquisition, N are more than or equal to 1.The embodiment of the invention also discloses a kind of RRC functional entitys.
Description
Technical Field
The present invention relates to an access network technology in the wireless field, and in particular, to a Radio Resource Control (RRC) functional entity and a method for processing data thereof.
Background
The design of a conventional cellular network is centered on a cell, and access/establishment/removal of users, coverage of the network, resource scheduling, mobility management, signaling control, planning/optimization of the cell, and the like are performed for individual cells.
With the development of mobile communication technology, the above-mentioned cell-centered design approach will no longer be applicable to the requirements of mobile communication networks, especially 5G networks. Technologies such as ultra dense networking/Massive access points (ultra dense Network, Massive RRUs/APs), uplink and downlink flexible duplex/full duplex, control plane/user plane (C/U) separation, Software Defined Air Interface (SDAI) satisfying diversified scenarios, and the like in a 5G Network make the interrelation between users and cells more and more complex.
In order to meet the requirement of the flexible air interface of the 5G network, the protocol function of the RRC needs to be redefined, and the conventional protocol function of the RRC cannot meet the requirement of the flexible air interface of the 5G network.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention are expected to provide an RRC functional entity and a method for processing data thereof, which can meet application scenarios and requirements of a 5G network.
The technical scheme of the invention is realized as follows:
a method for processing data by a Radio Resource Control (RRC) functional entity, the method comprising:
when monitoring signaling operation for a User Equipment (UE), an RRC functional entity acquires radio resource allocation information of at least one cell;
the RRC functional entity allocates cell radio resources for the UE based on the acquired radio resource allocation information; the cell radio resources are: and selecting the radio resources of N cells from the cells corresponding to the acquired radio resource allocation information, wherein N is more than or equal to 1.
In the embodiment of the present invention, the allocating cell radio resources to the UE includes: and the RRC functional entity configures an air interface signaling for each selected cell and allocates the radio resources of the corresponding cell to the UE based on the configured air interface signaling.
In this embodiment of the present invention, the acquiring radio resource allocation information of at least one cell includes: acquiring radio resource allocation information of each cell satisfying the following conditions: the UE is within the coverage of the corresponding cell.
In the embodiment of the present invention, the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UEs residing in the corresponding cell, and the radio resources allocated to each UE residing in the corresponding cell.
In the embodiment of the present invention, the allocating, by the RRC functional entity, cell radio resources to the UE based on the acquired radio resource allocation information includes: the RRC functional entity takes the N cells with the minimum number of resident UE as the selected cells, or takes the N cells with the minimum wireless resources allocated to all resident UE as the selected cells; and distributing the wireless resources of the selected cell to the UE.
In the embodiment of the present invention, the method further includes: directly mapping a Radio Access Bearer (RAB) between a network side and the UE on a Radio Bearer (RB);
the allocating cell radio resources to the UE includes: and the RRC functional entity allocates cell radio resources for the UE by using the RB.
In this embodiment of the present invention, the signaling operation for the UE includes at least one of the following operations: and establishing a wireless link between the UE and the network side, deleting the wireless link between the UE and the network side, and reconfiguring the wireless link between the UE and the network side.
In the embodiment of the present invention, the method further includes:
the RRC functional entity receives cell measurement information reported by the UE;
the RRC functional entity configures a Primary serving cell (PCell) for the UE based on the received cell measurement information.
A Radio Resource Control (RRC) functional entity comprises an acquisition module and an allocation module; wherein,
the acquisition module is used for acquiring wireless resource allocation information of at least one cell when signaling operation aiming at User Equipment (UE) is monitored;
the allocation module is configured to allocate cell radio resources to the UE based on the acquired radio resource allocation information; the cell radio resources are: and selecting the radio resources of N cells from the cells corresponding to the acquired radio resource allocation information, wherein N is more than or equal to 1.
In this embodiment of the present invention, the RRC functional entity further includes a configuration module, configured to configure an air interface signaling for each selected cell, and allocate radio resources of a corresponding cell to the UE based on the configured air interface signaling.
In this embodiment of the present invention, the obtaining module is further configured to obtain radio resource allocation information of each cell, where the radio resource allocation information satisfies the following conditions: the UE is within the coverage of the corresponding cell.
In the embodiment of the present invention, the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UEs residing in the corresponding cell, and the radio resources allocated to each UE residing in the corresponding cell.
In the embodiment of the present invention, the allocating module is specifically configured to use N cells with the minimum number of the resident UEs as the selected cell, or use N cells with the minimum number of wireless resources allocated to all the resident UEs as the selected cell; and distributing the wireless resources of the selected cell to the UE.
In this embodiment of the present invention, the signaling operation for the UE includes at least one of the following operations: establishing a wireless link between the UE and the network side, deleting the wireless link between the UE and the network side, and reconfiguring the wireless link between the UE and the network side.
In the RRC functional entity and the method for processing data thereof provided by the embodiment of the present invention, when monitoring a signaling operation for a UE, the RRC functional entity obtains radio resource allocation information of at least one cell; the RRC functional entity allocates cell radio resources for the UE based on the acquired radio resource allocation information; the cell radio resources are: selecting the wireless resources of N cells from the cells corresponding to the acquired wireless resource allocation information; thus, the application scene and the requirement of the 5G network can be met.
Drawings
Fig. 1 is a flowchart illustrating a method for processing data by an RRC functional entity according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an architecture of a protocol stack of an access network according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a structure of an RRC functional entity according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Currently, to implement RRC functions in a protocol stack, a UE is usually bound to a fixed cell (cell); in Carrier Aggregation (CA) technology, the following two different cells are introduced: a Primary serving cell (PCell, Primary cell) and a Secondary serving cell (SCell, Secondary cell); wherein, the PCell includes all context information of the UE, and the SCell mainly provides an air interface channel for the UE.
However, the existing cell cannot provide reasonable service for the UE according to the air interface environment of the UE, and thus cannot meet the requirement of a flexible air interface of a 5G network.
In view of the above problems, embodiments of the present invention provide an RRC functional entity and a method for processing data thereof, that is, an RRC protocol standard scheme of a 5G network with a user as a center. In the embodiments of the present invention, the functional entities may also be referred to as layers.
The embodiment of the invention can redesign the architecture of the traditional network by taking the cell as a unit aiming at the requirements of the 5G network and the limitations of the traditional mobile communication network, can meet the requirements of the 5G network, and provides the customized service for the user by taking the user as the center; in addition, insurmountable challenges are not presented to network management.
First embodiment
A first embodiment of the present invention provides a method for an RRC functional entity to process data, and fig. 1 is a schematic flow chart of the method for the RRC functional entity to process data according to the embodiment of the present invention, as shown in fig. 1, the flow chart includes:
step 101: when monitoring signaling operation for UE, the RRC functional entity acquires radio resource allocation information of at least one cell.
Here, the RRC functional entity may obtain signaling operation information for the UE in real time to monitor the corresponding signaling operation; the RRC functional entity may acquire the signaling operation information for the UE in the following two ways:
mode 1: and the RRC functional entity sends an instruction for acquiring the signaling operation information aiming at the UE to the UE, and the UE sends the signaling operation information to the RRC functional entity after receiving the instruction and when generating the signaling operation aiming at the UE.
Mode 2: and when the UE detects that the signaling operation is carried out aiming at the UE, actively sending the signaling operation information to the RRC functional entity.
The signaling operation of the UE described above includes at least one of: establishing a wireless link between the UE and the network side, deleting the wireless link between the UE and the network side, and reconfiguring the wireless link between the UE and the network side; for example, the signaling operation for the UE may be: establishing an RRC connection between the UE and the base station, deleting the RRC connection between the UE and the base station, reconfiguring the RRC connection between the UE and the base station, and so on.
In this step, the above-mentioned obtaining of radio resource allocation information of at least one cell includes: acquiring radio resource allocation information of each cell satisfying the following conditions: the UE is in the coverage range of the corresponding cell; here, it can be understood by those skilled in the art that the UE may be in the coverage of only one cell, or may be in the coverage of at least two cells simultaneously; when introducing ultra-dense networking/massive access points in a 5G network, a UE will typically be in the coverage of multiple cells.
Here, the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UEs residing in the corresponding cell, and the radio resources allocated to each UE residing in the corresponding cell.
Further, a transmission channel between the network side and the UE is directly mapped on a Radio Bearer (RB), for example, for an RAB between the network side and the UE, a portion of the RAB between the UE and the base station is directly mapped on the Radio Bearer (RB), and the transmission channel between the network side and the UE is independent of a cell; that is, the UE is not limited by the cell when interacting with the network side. Here, the Network side may refer to an access Network side such as a base station, and may also refer to a Core Network (CN).
For example, when the UE performs data interaction with the base station, the transmission channel between the UE and the base station may be directly mapped on the RB, and data processing at the cell level is not required.
Thus, allocating cell radio resources to the UE includes: and the RRC functional entity allocates cell radio resources for the UE by using the RB.
It should be noted that, the transmission channel between the network side and the UE is used for transmitting at least one of the following information: signaling, user data; that is, the transmission channel between the network side and the UE may be a channel for actually transmitting signaling messages, or a channel for actually transmitting user data.
Step 102: the RRC functional entity allocates cell radio resources for the UE based on the acquired radio resource allocation information; the cell radio resources are: and selecting the radio resources of N cells from the cells corresponding to the acquired radio resource allocation information, wherein N is more than or equal to 1.
In actual implementation, after selecting a cell, the RRC functional entity configures an air interface signaling for each selected cell, and allocates radio resources of the corresponding cell to the UE based on the configured air interface signaling; here, the configured air interface signaling is used to implement signaling interaction between the UE and the corresponding base station in the following processing procedures: and allocating the radio resource of the corresponding cell to the UE.
Here, the radio resource of each cell may include a spectrum resource, a bandwidth resource, and the like.
For the implementation manner in which the RRC functional entity selects at least N cells, for example, if the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UE residing in the corresponding cell and the wireless resources allocated to each UE residing in the corresponding cell; the RRC functional entity may use the N cells with the minimum number of the UEs to camp on as the selected cell, or may use the N cells with the minimum radio resources allocated to each UE to camp on as the selected cell.
The following illustrates a specific implementation of the first embodiment of the present invention.
In the traditional mobile communication network, a network resource management mode taking a cell as a unit is a simple and effective network resource management method proved by practice; therefore, in the embodiment of the invention, the new architecture of the 5G RRC protocol standard taking the user as the center redefines the functions aiming at the 5G scene and the requirements on the basis of inheriting the advantages of the traditional network.
Fig. 2 is a schematic diagram of a protocol stack of an access network in an embodiment of the present invention, and as shown in fig. 2, an RRC functional entity completes management of Radio resources (Radio resources) and control of various signaling with a user as a center.
Specifically, the RRC functional entity includes a Radio Resource Manager (RRM) sub-functional entity, where the RRM sub-functional entity separately manages the UE and the Radio Resource by taking the user as a center, and the RRM sub-functional entity may monitor the signaling operation of the UE, and in fig. 2, each signaling operation information acquired by the RRM is UE _1context to UE _ ncontext, where n is a natural number greater than 1, and when the UE performs signaling operation of establishment, deletion, and reconfiguration, the RRM sub-functional entity synthesizes information of multiple cells, allocates the Radio Resource of at least one cell to the UE, and configures a signaling of a u interface (UU interface) on a corresponding cell.
Referring to fig. 2, the RRM subfunction entity configures a UU interface Signaling (UU Signaling) on n cells, where n is a natural number greater than 1; the UU Signaling configured by the RRM subfunction entity on the n cells is respectively Cell _1UU Signaling to Cell _ n UU Signaling, where Cell _ k UU Signaling represents the UU Signaling configured by the RRM subfunction entity on the k Cell.
The UU interface signaling configured by the RRM sub-function entity on each cell is used to implement signaling interaction between the UE and the corresponding cell in the following processing procedures: allocating radio resources of at least one cell to the UE; referring to fig. 2, resources of n cells allocated to the UE are respectively denoted as Cell _1Radio Resource to Cell _ n Radio Resource, where Cell _ k Radio Resource denotes a Radio Resource of a kth Cell allocated to the UE.
Referring to fig. 2, the RRM sub-function entity may further implement information interaction with the CN through S1Signaling (S1Signaling), that is, the RRM sub-function entity is connected to the CN through a Radio Access Bearer (RAB); for each signaling operation information acquired by the RRM sub-function entity, the signaling operation information may be sent to the CN through n +1 RAB paths, where the n +1 RAB paths are respectively denoted as RAB0 to RABn; the RRM sub-function entity may also implement information interaction with the CN through the n +1 RAB paths.
In summary, the UE can directly connect to the CN through the base station, in this case, the base station directly connects to the CN through the RAB at the port S1 to implement data transceiving, and the RAB can be directly mapped to the RB without the limitation of the cell.
In practical application, the specific signaling flow of the RRC functional entity in the embodiment of the present invention may be a signaling flow of an RRC functional entity of an existing mobile communication system, or may also determine whether to increase or decrease the signaling flow or determine whether to modify the content of the RRC signaling flow, such as the content of each step of the RRC signaling flow, in practical application scenarios, such as the requirements of a 5G network.
In the first embodiment of the method for processing data by the RRC functional entity, when the RRC functional entity monitors the signaling operation of the user terminal UE, the radio resource control RRC functional entity acquires the radio resource allocation information of at least one cell; the RRC functional entity allocates radio resources for the UE based on the acquired radio resource allocation information; therefore, the application scene and the requirement of the 5G network can be met, for example, the requirement of a flexible air interface of the 5G network can be met; the service function taking the user as the center can be realized; the system has good expansibility, and can quickly support a large number of users; the method can be compatible with a 3G/4G/5G network, namely, has the characteristic of good compatibility.
Second embodiment
To further illustrate the object of the present invention, the first embodiment of the present invention is further illustrated.
The method for processing data by the RRC functional entity according to the second embodiment of the present invention is substantially the same as the first embodiment of the present invention, and the difference is that the method for processing data by the RRC functional entity according to the second embodiment of the present invention further includes:
the RRC functional entity receives cell measurement information reported by the UE; the RRC functional entity configures a Primary serving Cell (PCell, Primary Cell) for the UE based on the received Cell measurement information; thus, dynamic configuration of the PCell may be achieved.
In the conventional RRC signaling control, the PCell carries UE access procedures such as broadcast, paging, Random Access (RA) procedure, RRC Connection Setup (RRC Connection Setup)/Setup (Recfg)/Delete (Delete), and uplink (UL, UP Link)/(DL, Down Link) downlink Context information (Context) content.
In the method for processing data of the RRC functional entity with the user as the center according to the embodiment of the present invention, a PCell may be dynamically selected, a UE side may monitor broadcast and paging of multiple cells at the same time, select a cell with the best received signal quality to initiate an RA procedure and an RRC Connection Setup procedure, an RRC configures an available PCell to the UE side according to a target cell for which the UE sends the RA procedure and the RRC Connection Setup and a preset admission control algorithm, after receiving the RRC-configured PCell, the UE side configures the PCell with the cell in an air interface period configured by the RRC, and the RRC dynamically configures an appropriate PCell for the UE according to measurement information reported by the UE side.
It should be noted that, in the above scheme, the PCell is reserved on the basis of continuing the LTE concept, and as the research on the 5G requirement goes deep, the PCell may be removed in the user-centric RRC scheme, so that all cells are peer-to-peer and provide services to the UE.
Third embodiment
On the basis of the first and second embodiments of the present invention, a third embodiment of the present invention provides an RRC functional entity.
Fig. 3 is a schematic structural diagram of an RRC functional entity according to an embodiment of the present invention, and as shown in fig. 3, the RRC functional entity includes an obtaining module 301 and an allocating module 302; wherein,
the obtaining module 301 is configured to obtain radio resource allocation information of at least one cell when signaling operation for the UE is monitored;
the allocating module 302 is configured to allocate a cell radio resource to the UE based on the obtained radio resource allocation information; the cell radio resources are: and selecting the radio resources of N cells from the cells corresponding to the acquired radio resource allocation information, wherein N is more than or equal to 1.
Referring to fig. 3, the RRC functional entity further includes a configuration module 303, configured to configure an air interface signaling for each selected cell, and allocate radio resources of a corresponding cell to the UE based on the configured air interface signaling.
Specifically, the obtaining module 301 is configured to obtain radio resource allocation information of each cell, where the following conditions are satisfied: the UE is within the coverage of the corresponding cell.
Here, the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UEs residing in the corresponding cell, and the radio resources allocated to each UE residing in the corresponding cell.
The allocating module 302 is specifically configured to use the N cells with the minimum number of the resident UEs as the selected cell, or use the N cells with the minimum number of the wireless resources allocated to all the resident UEs as the selected cell; and distributing the wireless resources of the selected cell to the UE.
The signaling operation for the UE comprises at least one of: and establishing a wireless link between the UE and the network side, deleting the wireless link between the UE and the network side, and reconfiguring the wireless link between the UE and the network side.
Those skilled in the art should understand that the implementation functions of each unit in the RRC functional entity shown in fig. 3 can be understood by referring to the related description of the method for processing data by the RRC functional entity. The functions of the units in the RRC functional entity may be implemented by a program running on a processor, or may be implemented by specific logic circuits.
The technical schemes described in the embodiments of the present invention can be combined arbitrarily without conflict.
In the embodiments provided in the present invention, it should be understood that the disclosed method and intelligent device may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one second processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (14)
1. A method for processing data by a Radio Resource Control (RRC) functional entity, the method comprising:
the method comprises the steps that when monitoring signaling operation aiming at User Equipment (UE), an RRC functional entity acquires wireless resource allocation information of at least one cell;
the RRC functional entity allocates cell radio resources for the UE based on the acquired radio resource allocation information; the cell radio resources are: and selecting the radio resources of N cells from the cells corresponding to the acquired radio resource allocation information, wherein N is more than or equal to 1.
2. The method of claim 1, wherein the allocating cell radio resources for the UE comprises: and the RRC functional entity configures an air interface signaling for each selected cell and allocates the radio resources of the corresponding cell to the UE based on the configured air interface signaling.
3. The method of claim 1, wherein the obtaining radio resource allocation information of at least one cell comprises: acquiring radio resource allocation information of each cell satisfying the following conditions: the UE is within the coverage of the corresponding cell.
4. The method of claim 1, wherein the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UEs residing in the corresponding cell, and the radio resources allocated to each UE residing in the corresponding cell.
5. The method according to claim 4, wherein the RRC functional entity allocates cell radio resources for the UE based on the obtained radio resource allocation information, and comprises: the RRC functional entity takes the N cells with the minimum number of resident UE as the selected cells, or takes the N cells with the minimum wireless resources allocated to all resident UE as the selected cells; and distributing the wireless resources of the selected cell to the UE.
6. The method of claim 1, further comprising: directly mapping a radio access bearer RAB between a network side and the UE on a radio bearer RB;
the allocating cell radio resources to the UE includes: and the RRC functional entity allocates cell radio resources for the UE by using the RB.
7. The method of claim 1, wherein the signaling operation for the UE comprises at least one of: and establishing a wireless link between the UE and the network side, deleting the wireless link between the UE and the network side, and reconfiguring the wireless link between the UE and the network side.
8. The method of claim 1, further comprising:
the RRC functional entity receives cell measurement information reported by the UE;
and the RRC functional entity configures a primary service cell (PCell) for the UE based on the received cell measurement information.
9. A Radio Resource Control (RRC) functional entity is characterized by comprising an acquisition module and an allocation module; wherein,
the acquisition module is used for acquiring wireless resource allocation information of at least one cell when signaling operation aiming at User Equipment (UE) is monitored;
the allocation module is configured to allocate cell radio resources to the UE based on the acquired radio resource allocation information; the cell radio resources are: and selecting the radio resources of N cells from the cells corresponding to the acquired radio resource allocation information, wherein N is more than or equal to 1.
10. The RRC functional entity according to claim 9, further comprising a configuration module, configured to configure an air interface signaling for each selected cell, and allocate radio resources of a corresponding cell to the UE based on the configured air interface signaling.
11. The RRC functional entity of claim 9, wherein the obtaining module is further configured to obtain radio resource allocation information of each cell that satisfies the following conditions: the UE is within the coverage of the corresponding cell.
12. The RRC functional entity of claim 9, wherein the radio resource allocation information of each cell is used to indicate at least one of the following information: the number of the UEs residing in the corresponding cell, and the radio resources allocated to each UE residing in the corresponding cell.
13. The method according to claim 12, wherein the allocating module is specifically configured to use N cells with the smallest number of UEs that reside as the selected cell, or use N cells with the smallest radio resources allocated to all UEs that reside as the selected cell; and distributing the wireless resources of the selected cell to the UE.
14. The RRC functional entity of claim 9, wherein the signaling operation for the UE includes at least one of: and establishing a wireless link between the UE and the network side, deleting the wireless link between the UE and the network side, and reconfiguring the wireless link between the UE and the network side.
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| CN110557761A (en) * | 2018-05-30 | 2019-12-10 | 中国移动通信有限公司研究院 | processing method, device and storage medium based on wireless resource |
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| CN110557761A (en) * | 2018-05-30 | 2019-12-10 | 中国移动通信有限公司研究院 | processing method, device and storage medium based on wireless resource |
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