CN114390606A

CN114390606A - Radio resource control method, radio resource control functional entity module and base station

Info

Publication number: CN114390606A
Application number: CN202011136914.2A
Authority: CN
Inventors: 孙军帅; 刘光毅; 黄宇红
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2022-04-22

Abstract

A radio resource control method, a radio resource control functional entity module and a base station are provided, wherein the radio resource control functional entity module comprises at least one of a control plane unit, a radio resource plane unit and a user context plane unit. According to the radio resource control method, the radio resource control functional entity module and the base station provided by the embodiment of the invention, the existing RRC functional architecture is reconstructed, the mode that the cellular cell is taken as a basic invalid resource management unit in the prior art is changed, the separation of the management and the control of the RRC layer is realized, the complexity of the radio resource control of the network side can be simplified, and the realization cost is reduced.

Description

Radio resource control method, radio resource control functional entity module and base station

Technical Field

The invention relates to the technical field of mobile communication, in particular to a radio resource control method, a radio resource control functional entity module and a base station.

Background

At present, Radio Resource Control (RRC) functions of fifth generation mobile communication (5G) and fourth generation mobile communication (4G) are basically the same, that is, taking a cell as a center, access/establishment/removal of a user, coverage of a network, Resource scheduling, mobility management, signaling Control, planning/optimization, and the like are all performed by using an independent cell.

This way of taking "Cell" as the unit of basic radio resource management is difficult to support the requirement of 5G network on two traffic types, mass Machine Type communication (mtc) and Ultra-Reliable and Low Latency communication (URLLC). Therefore, the 5G performs patch-type handover enhancement again, and implements Seamless (Seamless) handover by adopting a Dual Connectivity (DC) and Multi Connectivity (MC) manner, even introducing a multiplexing (multiplexing) manner into a Packet Data Convergence Protocol (PDCP), that is, a manner in which Data is repeatedly transmitted over a plurality of Radio Link Control (RLC) links connecting one PDCP.

The 5G RRC of the prior art implements seamless handover by means of DC and MC enhancements, and the User Equipment (UE) needs to perform handover within the master cell group/secondary cell group (MCG/SCG), and MCG, even if MCG/SCG are on the same centralized unit-distributed unit (CU-DU) base station. The patch type implementation mode greatly increases the complexity of the network side and the terminal side, increases the implementation cost, and has low practical value.

Disclosure of Invention

At least one embodiment of the present invention provides a radio resource control method, a radio resource control function entity module, and a base station, and provides a scheme for implementing a radio resource control function oriented to seamless handover, so as to reduce the implementation complexity of a radio resource control layer.

According to an aspect of the present invention, at least one embodiment provides a radio resource control function entity module of a base station, including at least one of a control plane unit, a radio resource plane unit and a user context plane unit, wherein:

the control plane unit is used for acquiring user context information and/or wireless resource demand information of the terminal after receiving a connection establishment request message or a connection modification request message sent by the terminal, sending the wireless resource demand information of the terminal to the wireless resource plane unit, and/or sending the user context information of the terminal to the user context plane unit;

the radio resource plane unit is configured to store or manage resource information of each empty entity and a resource usage rule of the empty entity in units of empty entities, allocate radio resources to the terminal according to the resource information of the empty entity and the resource usage rule after receiving radio resource demand information of the terminal sent by the control plane unit, and send a radio resource allocation result to the user context plane unit;

the user context plane unit is configured to store or manage the user context information of the terminal sent by the control plane unit, and/or record a resource of an air interface entity occupied by the terminal according to a radio resource allocation result of the terminal sent by the radio resource plane unit.

In addition, according to at least one embodiment of the present invention, the air interface entity is a cell or another predefined entity for representing air interface resources, where the cell includes a physical cell and/or a logical cell.

Further, according to at least one embodiment of the present invention, the radio resource allocation result includes at least one of:

the method includes that air interface entity cluster information obtained by one air interface entity or a combination of a plurality of air interface entities includes at least one of the following information: the cluster identification ID, the empty entity cluster and the empty entity are mapped;

and the wireless resource information of each air interface entity and the use rule corresponding to the wireless resource information.

The user context information includes at least one of: the identity of the terminal, the service information, the transmission bearing information and the transmission channel information.

Furthermore, according to at least one embodiment of the present invention, the radio resource plane unit is further configured to send a radio resource allocation result to the control plane unit after allocating a radio resource to the terminal;

and the control plane unit is further configured to send a message carrying the radio resource allocation result to the terminal after receiving the radio resource allocation result sent by the radio resource plane unit.

In addition, according to at least one embodiment of the present invention, the control plane unit is further configured to receive a connection release request message sent by the terminal, and send, to the radio resource plane unit, first release information for releasing resources of an air interface entity occupied by the terminal;

and the radio resource plane unit is further configured to release resources of an air interface entity occupied by the terminal according to the first release information.

Furthermore, according to at least one embodiment of the present invention, the control plane unit is further configured to receive a context setup, deletion, or modification request message sent by the terminal, and send the context setup, deletion, or modification request message to the radio resource plane unit;

the radio resource plane unit is further configured to allocate, recover, or update resources of an air interface entity for the terminal according to the context setup, deletion, or modification request message, and send resource information of the air interface entity allocated, recovered, or updated for the terminal to the user plane context unit.

In addition, according to at least one embodiment of the present invention, the control plane unit is further configured to receive a cell reselection or handover request of a terminal, and determine a target cell for cell reselection or handover; when the source cell and the target cell for cell reselection or switching are both cells under the entity module of the radio resource control function, sending a radio resource allocation request for cell reselection or switching to the radio resource plane unit;

the radio resource plane unit is further configured to allocate radio resources for cell reselection or handover according to the radio resource allocation request, and send a radio resource allocation result allocated for the cell reselection or handover to the user context plane unit;

and the user context unit is further configured to update resources of an air interface entity occupied by the terminal according to a radio resource allocation result allocated by the cell reselection or handover.

In addition, according to at least one embodiment of the present invention, the control plane unit is further configured to send a radio resource allocation request for cell reselection or handover to a target radio resource plane unit when a source cell and a target cell for cell reselection or handover belong to cells under different radio resource control functional entity modules, where the target radio resource plane unit is a radio resource plane unit under a radio resource control functional entity module to which the target cell belongs; after receiving a confirmation message of cell reselection or switching completion sent by the target radio resource plane unit, sending second release information for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit;

and the radio resource plane unit is further configured to release the resource of the air interface entity occupied by the terminal according to the second release information.

In addition, according to at least one embodiment of the present invention, the radio resource plane unit is further configured to pre-select a candidate target cell for terminal reselection or handover, and send a pre-establishment message carrying information of the candidate target cell to the control plane unit;

the radio resource plane unit is further configured to establish, for the terminal, a connection between the candidate target cell and a core network in advance according to the pre-establishment message, and send, to the terminal, a link switching signaling for switching an air interface link to the candidate target cell when the terminal moves to the candidate target cell.

In addition, according to at least one embodiment of the present invention, the radio resource plane unit is further configured to allocate an air interface entity, multiple air interface entities, or an air interface entity cluster to the terminal according to the reception quality of an air interface signal of the air interface entity by the terminal and the load of the air interface entity;

and the control plane unit is further configured to select, when the number of the air interface entities allocated to the terminal is greater than 1, an air interface entity that sends data and/or signaling to the terminal according to the reception quality of the air interface signal of each air interface entity.

In addition, according to at least one embodiment of the present invention, the control plane unit is further configured to configure, for the terminal, information of an available empty entity in a random access process, through an empty entity that the terminal initiates the random access; and carrying out signaling and data interaction with the terminal through the available air interface entity.

In addition, according to at least one embodiment of the present invention, the control plane unit is further configured to receive a measurement report reported by the terminal, and configure an available air interface entity in a random access process for the terminal according to the measurement report.

According to another aspect of the present invention, at least one embodiment provides a radio resource control method applied to a base station including at least one of a control plane unit, a radio resource plane unit, and a user context plane unit, the method including:

the control plane unit acquires user context information and/or wireless resource demand information of the terminal after receiving a connection establishment request message or a connection modification request message sent by the terminal, and sends the wireless resource demand information of the terminal to a wireless resource plane unit, and/or sends the user context information of the terminal to the user context plane unit;

the radio resource plane unit stores or manages resource information of each empty entity and/or resource usage rules of the empty entity by taking the empty entity as a unit, allocates radio resources to the terminal according to the resource information and/or the resource usage rules of the empty entity after receiving the radio resource demand information of the terminal sent by the control plane unit, and sends a radio resource allocation result to the user context plane unit;

and the user context plane unit stores or manages the user context information of the terminal sent by the control plane unit, and/or records the resources of the air interface entity occupied by the terminal according to the wireless resource allocation result of the terminal sent by the wireless resource plane unit.

Further, in accordance with at least one embodiment of the present invention, there is also provided:

after allocating the radio resources to the terminal, the radio resource plane unit sends a radio resource allocation result to the control plane unit;

and after receiving the radio resource allocation result sent by the radio resource plane unit, the control plane unit sends a message carrying the radio resource allocation result to the terminal.

the control plane unit receives a connection release request message sent by the terminal and sends first release information used for releasing resources of an air interface entity occupied by the terminal to the wireless resource plane unit;

and the radio resource plane unit releases the resources of the air interface entity occupied by the terminal according to the first release information.

the control plane unit receives a context establishing, deleting or modifying request message sent by the terminal and sends the context establishing, deleting or modifying request message to the wireless resource plane unit;

and the radio resource plane unit allocates, recovers or updates the resources of the air interface entity for the terminal according to the context establishment, deletion or modification request message, and sends the resource information of the air interface entity allocated, recovered or updated for the terminal to a user plane context unit.

the control surface unit receives a cell reselection or switching request of a terminal and determines a target cell for cell reselection or switching; when the source cell and the target cell for cell reselection or switching are both cells under the entity module of the radio resource control function, sending a radio resource allocation request for cell reselection or switching to the radio resource plane unit;

the wireless resource surface unit allocates wireless resources for cell reselection or cell handover according to the wireless resource allocation request, and sends a wireless resource allocation result allocated for cell reselection or cell handover to the user context surface unit;

and the user context unit updates the resources of the air interface entity occupied by the terminal according to the wireless resource distribution result distributed by the cell reselection or switching.

when a source cell and a target cell of the cell reselection or handover belong to cells under different radio resource control functional entity modules respectively, the control plane unit sends a radio resource allocation request of the cell reselection or handover to a target radio resource plane unit, where the target radio resource plane unit is a radio resource plane unit under the radio resource control functional entity module to which the target cell belongs; after receiving a confirmation message of cell reselection or switching completion sent by the target radio resource plane unit, sending second release information for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit;

and the radio resource plane unit releases the resources of the air interface entity occupied by the terminal according to the second release information.

the radio resource surface unit selects a candidate target cell reselected or switched by the terminal in advance, and sends a pre-established message carrying information of the candidate target cell to the control surface unit;

and the radio resource plane unit establishes the connection between the candidate target cell and the core network for the terminal in advance according to the pre-establishment message, and sends a link switching signaling for switching an air interface link to the candidate target cell to the terminal when the terminal moves to the candidate target cell.

the radio resource plane unit allocates an air interface entity, a plurality of air interface entities or an air interface entity cluster to the terminal according to the receiving quality of the air interface signal of the air interface entity and the load of the air interface entity by the terminal;

and when the number of the empty port entities allocated to the terminal by the control plane unit is more than 1, selecting the empty port entity for sending data and/or signaling to the terminal according to the receiving quality of the empty port signal of each empty port entity.

the control plane unit configures information of an available empty entity in a random access process for the terminal through an empty entity which initiates the random access by the terminal; and carrying out signaling and data interaction with the terminal through the available air interface entity.

and the control plane unit receives the measurement report reported by the terminal and configures an available air interface entity in the random access process for the terminal according to the measurement report.

According to another aspect of the present invention, at least one embodiment provides a base station comprising: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, performs the steps of the radio resource control method as described above.

According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.

Compared with the prior art, the radio resource control method, the radio resource control functional entity module and the base station provided by the embodiment of the invention change the mode of taking a cellular cell as a basic invalid resource management unit in the prior art by reconstructing the prior RRC functional architecture, realize the separation of the management and the control of the RRC layer, simplify the complexity of the radio resource control of the network side and reduce the realization cost.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an rrc functional entity module according to an embodiment of the present invention;

fig. 3 is a flowchart of a radio resource control method according to an embodiment of the present invention;

fig. 4 is another schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to NR systems and Long Time Evolution (LTE)/LTE Evolution (LTE-a) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.21(Wi-Fi), IEEE802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a User terminal or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station and/or a core network element, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention only takes the Base Station in the NR system as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

Referring to fig. 2, a structure of a radio resource control function entity module 20 of a base station according to an embodiment of the present invention is shown, including: at least one of the control plane unit 21, the radio resource plane unit 22, and the user context plane unit 23. The interaction diagram between the above 3 units is shown in fig. 2. In particular, the method comprises the following steps of,

the control plane unit 21 is configured to, after receiving a connection establishment request message or a connection modification request message sent by a terminal, acquire user context information and/or radio resource requirement information of the terminal, send the radio resource requirement information of the terminal to a radio resource plane unit, and/or send the user context information of the terminal to the user context plane unit.

Here, the user context information may specifically include at least one of the following: the identity of the terminal, the service information, the transmission bearing information, the transmission channel information and the like.

The radio resource plane unit 22 is configured to store or manage resource information of each empty entity and a resource usage rule of the empty entity in units of empty entities, allocate radio resources to the terminal according to the resource information and/or the resource usage rule of the empty entity after receiving the radio resource requirement information of the terminal sent by the control plane unit, and send a radio resource allocation result to the user context plane unit.

Here, the air interface entity is a cell or other entity, except for a cell, which is predefined to represent air interface resources, where the cell includes a physical cell and/or a logical cell. In addition, the radio resource allocation result may specifically include at least one of the following: a) the method includes that air interface entity cluster information obtained by one air interface entity or a combination of a plurality of air interface entities includes at least one of the following information: the cluster identification ID, the empty entity cluster and the empty entity are mapped; b) and the wireless resource information of each air interface entity and the use rule corresponding to the wireless resource information.

The user context plane unit 23 is configured to store or manage the user context information of the terminal sent by the control plane unit, and/or record the resource of the air interface entity occupied by the terminal according to the radio resource allocation result of the terminal sent by the radio resource plane unit.

Here, the RRC function module matches a terminal (UE) with radio resources in units of air interface entities (e.g., cells), and selects appropriate radio resources of the air interface entities (e.g., cells) to provide services for the UE according to RRC signaling sent by the UE. For example, when a user accesses, the UE may be assigned an available serving cell. The serving cells available to the user may also be updated as the UE moves. In the scheme, the RRC matches the UE with the radio resources taking the Cell as a unit, and selects the radio resources of a proper Cell to provide services for the UE according to the RRC signaling application sent by the UE.

Among the above units, the control plane unit 21 is responsible for controlling the radio resource plane unit 22 and the ue plane unit 23, after receiving a connection establishment or modification request sent by a terminal, writes context (context) information of the terminal into the ue plane unit, sends a radio resource requirement to be used by the terminal to the radio resource plane unit, the radio resource plane unit sends an allocation result to the ue plane unit after completing allocation of radio resources, and reports to the control plane unit, which can start a subsequent control flow to complete a subsequent signaling flow, such as sending a relevant response message.

The radio resource plane unit 22 is responsible for storing or managing resource information of each air interface entity, for example, is responsible for storing resource information of each Physical Cell (Physical Cell: air interface Cell) as a unit, including power, time domain resource, frequency domain resource, and the like of the Physical Cell, and also storing or managing usage rule parameters for these resources, such as Discontinuous Reception (DRX) parameter, Semi-Persistent Scheduling (SPS) parameter, and the like. After receiving the radio resource demand information sent by the control plane unit, allocating the radio resource information according to the terminal request in the request information: cluster information after combination of one or more physical cells, including an ID of a cluster, and a mapping relationship between the cluster and each physical cell thereof; radio resource information of each physical cell, usage rule parameters corresponding to the resource information, and the like.

The user context plane unit 23 is responsible for storing or managing user context information and the like, and is responsible for storing a corresponding context in units of a terminal received by the control plane unit, for example, and is referred to as a user context of the terminal. The user context unit stores context information of each terminal, including identity information, service information, transmission bearer information, transmission channel information, and the like of the terminal, and when the radio resource plane unit allocates resources to the terminal, the user context unit may also record the resources allocated to the terminal, such as physical cell resources. When the terminal releases, it needs to send release information to the radio resource plane unit to release the resources occupied by the terminal, such as physical cell resources.

Through the above units, the embodiment of the present invention implements a design scheme for managing and controlling a separate RRC layer. It can be seen that the embodiment of the present invention reconstructs the existing RRC functional architecture, changes the way of using the cell as the basic invalid resource management unit in the prior art, realizes the separation of management and control on the RRC layer, can simplify the complexity of radio resource control on the network side, and reduces the implementation cost.

In this embodiment of the present invention, the radio resource plane unit is further configured to send a radio resource allocation result to the control plane unit after allocating radio resources to the terminal. And the control plane unit is further configured to send a message carrying the radio resource allocation result to the terminal after receiving the radio resource allocation result sent by the radio resource plane unit. Here, the message may specifically be a message for indicating radio resource modification, or a response message for radio resource control connection establishment, or may also be another predefined message.

When the connection of the terminal needs to be released, the control plane unit may be further configured to receive a connection release request message sent by the terminal, and send, to the radio resource plane unit, first release information for releasing resources of an air interface entity occupied by the terminal. At this time, the radio resource plane unit may be further configured to release, according to the first release information, a resource of an air interface entity occupied by the terminal.

In this embodiment of the present invention, the control plane unit is further configured to receive a context establishment, deletion, or modification request message sent by the terminal, and send the context establishment, deletion, or modification request message to the radio resource plane unit; the radio resource plane unit is further configured to allocate, recover, or update resources of an air interface entity for the terminal according to the context setup, deletion, or modification request message (e.g., allocate available maximum power to the terminal, etc.), and send resource information of the air interface entity allocated, recovered, or updated for the terminal to the user plane context unit.

In addition, to implement mobility management, the control plane unit is further configured to receive a cell reselection or handover request of the terminal, and determine a target cell for cell reselection or handover; and when the source cell and the target cell for cell reselection or switching are both cells under the entity module of the radio resource control function, sending a radio resource allocation request for cell reselection or switching to the radio resource plane unit. The radio resource plane unit is further configured to allocate the radio resource for cell reselection or handover according to the radio resource allocation request, and send a radio resource allocation result allocated for cell reselection or handover to the user context plane unit. And the user context unit is further configured to update resources of an air interface entity occupied by the terminal according to a radio resource allocation result allocated by the cell reselection or handover.

If the control surface unit judges that the source cell and the target cell of the cell reselection or the switching belong to cells under different radio resource control functional entity modules respectively, the control surface unit sends a radio resource allocation request of the cell reselection or the switching to a target radio resource surface unit, wherein the target radio resource surface unit is a radio resource surface unit under the radio resource control functional entity module to which the target cell belongs; and after receiving a confirmation message of cell reselection or switching completion sent by the target radio resource plane unit, sending second release information for releasing the resources of the air interface entity occupied by the terminal to the radio resource plane unit. At this time, the radio resource plane unit is further configured to release, according to the second release information, the resource of the air interface entity occupied by the terminal.

For example, when a UE moves, if the UE is within the control range of an RRC functional entity, such as a CU platform running RRC signaling, it only needs the radio resource plane unit to update the physical resources of the corresponding UE context plane unit under the unified control of the control plane unit. If the control range of one RRC functional entity is exceeded, the source control plane unit is required to send the corresponding resource requirement to the target control plane unit, thereby realizing the relay allocation of the physical cell resource.

In the embodiment of the present invention, the radio resource plane unit is further configured to pre-select a candidate target cell for the terminal to reselect or switch, and send a pre-establishment message carrying information of the candidate target cell to the control plane unit; at this time, the radio resource plane unit is further configured to establish, according to the pre-establishment message, a connection between the candidate target cell and a core network for the terminal in advance, and send, to the terminal, a link switching signaling for switching an air interface link to the candidate target cell when the terminal moves to the candidate target cell.

For example, the radio resource plane unit may select a target cell to which the UE may handover in advance based on Artificial Intelligence (AI) and big data tools, and then trigger the control plane unit to pre-establish the target cell in advance. And when the UE really moves to the target physical cell, initiating an air interface link switching signaling so as to realize quick switching.

In this embodiment of the present invention, the radio resource plane unit is further configured to allocate one air interface entity, multiple air interface entities, or one air interface entity cluster to the terminal according to the reception quality of the air interface signal of the air interface entity by the terminal and the load of the air interface entity. And the control plane unit is further configured to select, when the number of the air interface entities allocated to the terminal is greater than 1, an air interface entity that sends data and/or signaling to the terminal according to the reception quality of the air interface signal of each air interface entity.

In this embodiment of the present invention, the control plane unit is further configured to configure, for the terminal, information of an available empty entity in a random access process, through an empty entity that the terminal initiates the random access; and carrying out signaling and data interaction with the terminal through the available air interface entity.

In the embodiment of the present invention, the control plane unit is further configured to receive a measurement report reported by the terminal, and configure an available air interface entity in a random access process for the terminal according to the measurement report.

For example, the radio resource plane unit allocates one or more physical cells or cell clusters used by the UE to the UE according to the signal quality of the cell received by the UE over the air interface and the load information of the cell. One or more physical cells or Cell clusters serving one UE are all identical, with no Primary Cell or Secondary Cell division. For Access flows such as broadcast (Paging), Paging (Paging), Random Access (RA) process, RRC Connection Setup/reconfiguration/Delete (RRC Connection Setup/Recfg/Delete) of the UE, the Access flows are sent in the cell with high UE reception quality under the unified coordination and control of the control plane unit. When the number of physical cells serving one UE is 1, the control plane unit controls signaling and data to interact through the cell. When the number of physical cells serving one UE is greater than 1, the control plane unit flexibly selects an appropriate physical cell to send signaling and/or data (signaling and data can be sent on different physical cells) according to the quality of a received signal of the UE on each physical cell. Through the above processing, the embodiment of the present invention may cancel the concept of "PCell", because the core information of the UE belongs to the context plane unit of the user, and the "PCell" only represents one or a group of physical layer cells with the best quality of the air interface channel of the UE, and belongs to the on-demand allocation of the radio resource plane unit.

Initially, a UE side may monitor broadcast and paging of multiple physical cells simultaneously, select a cell with the best received signal quality to initiate an RA procedure and an RRC Connection related procedure, configure, by a network side control plane unit, available physical cell information in the RA procedure for the UE in a physical cell in which the UE initiates the RA procedure, and perform signaling interaction or interaction of key information with the configured physical cell as a "PCell" in an air interface period configured by the network side after the UE side receives the configuration of the network side; and the network side control plane unit dynamically configures a proper 'PCell' set at the UE side according to the measurement reported by the UE side.

As can be seen from the above, the embodiment of the present invention can simplify the complexity of radio resource control at the network side and reduce the implementation cost by reconstructing the existing RRC function architecture. Based on the above structure, the embodiment of the present invention can implement undifferentiated cell definition. In addition, the structure has good expansibility, can quickly support massive users, has good compatibility and can be compatible with networks such as 3G/4G/5G and the like.

The foregoing describes a radio resource control functional entity module of a base station according to an embodiment of the present invention. The workflow of the above modules is further provided below.

Referring to fig. 3, an embodiment of the present invention provides a radio resource control method, which is applied to a base station, where the base station includes at least one of a control plane unit, a radio resource plane unit, and a user context plane unit shown in fig. 2. As shown in fig. 3, the radio resource control method includes:

step 31, after receiving a connection establishment request message or a connection modification request message sent by a terminal, the control plane unit obtains user context information and/or radio resource requirement information of the terminal, and sends the radio resource requirement information of the terminal to a radio resource plane unit, and/or sends the user context information of the terminal to the user context plane unit.

Here, the user context information specifically includes: the identity of the terminal, the service information, the transmission bearing information and the transmission channel information.

Step 32, the radio resource plane unit stores or manages resource information of each empty entity and/or resource usage rules of the empty entity in units of empty entities, allocates radio resources to the terminal according to the resource information and/or resource usage rules of the empty entity after receiving the radio resource demand information of the terminal sent by the control plane unit, and sends the radio resource allocation result to the context plane unit of the user.

Here, the air interface entity is a cell or other predefined entity for representing air interface resources, and the cell includes a physical cell and/or a logical cell. The radio resource allocation result includes: the method includes that air interface entity cluster information obtained by one air interface entity or a combination of a plurality of air interface entities includes: the cluster identification ID, the empty entity cluster and the empty entity are mapped; and the radio resource information of each air interface entity and the use rule corresponding to the radio resource information.

Step 33, the user context plane unit stores or manages the user context information of the terminal sent by the control plane unit, and/or records the resources of the air interface entity occupied by the terminal according to the radio resource allocation result of the terminal sent by the radio resource plane unit.

Through the steps, the embodiment of the invention realizes the control and management of the radio resources based on the reconstructed radio resource control functional entity.

In the embodiment of the present invention, after allocating a radio resource to the terminal, the radio resource plane unit sends a radio resource allocation result to the control plane unit; and after receiving the radio resource allocation result sent by the radio resource plane unit, the control plane unit sends a message carrying the radio resource allocation result to the terminal.

In the embodiment of the present invention, the control plane unit receives a connection release request message sent by the terminal, and sends first release information for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit; and the radio resource plane unit releases the resources of the air interface entity occupied by the terminal according to the first release information.

In the embodiment of the present invention, the control plane unit receives a context establishment, deletion, or modification request message sent by the terminal, and sends the context establishment, deletion, or modification request message to the radio resource plane unit; and the radio resource plane unit allocates, recovers or updates the resources of the air interface entity for the terminal according to the context establishment, deletion or modification request message, and sends the resource information of the air interface entity allocated, recovered or updated for the terminal to a user plane context unit.

In the embodiment of the invention, the control plane unit receives a cell reselection or switching request of a terminal and determines a target cell for cell reselection or switching; when the source cell and the target cell for cell reselection or switching are both cells under the entity module of the radio resource control function, sending a radio resource allocation request for cell reselection or switching to the radio resource plane unit; the wireless resource surface unit allocates wireless resources for cell reselection or cell handover according to the wireless resource allocation request, and sends a wireless resource allocation result allocated for cell reselection or cell handover to the user context surface unit; and the user context unit updates the resources of the air interface entity occupied by the terminal according to the wireless resource distribution result distributed by the cell reselection or switching.

In this embodiment of the present invention, when a source cell and a target cell of cell reselection or handover belong to different cells under an entity module of a radio resource control function, respectively, the control plane unit sends a request for allocating radio resources of cell reselection or handover to a target radio resource plane unit, where the target radio resource plane unit is a radio resource plane unit under an entity module of a radio resource control function to which the target cell belongs; after receiving a confirmation message of cell reselection or switching completion sent by the target radio resource plane unit, sending second release information for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit; and the radio resource plane unit releases the resources of the air interface entity occupied by the terminal according to the second release information.

In the embodiment of the present invention, the radio resource plane unit pre-selects a candidate target cell for the terminal to reselect or switch, and sends a pre-establishment message carrying information of the candidate target cell to the control plane unit; and the radio resource plane unit establishes the connection between the candidate target cell and the core network for the terminal in advance according to the pre-establishment message, and sends a link switching signaling for switching an air interface link to the candidate target cell to the terminal when the terminal moves to the candidate target cell.

In the embodiment of the present invention, the radio resource plane unit allocates one air interface entity, multiple air interface entities, or one air interface entity cluster to the terminal according to the receiving quality of the air interface signal of the terminal to the air interface entity and the load of the air interface entity;

In the embodiment of the present invention, the control plane unit configures, for the terminal, information of an available empty entity in a random access process through an empty entity that the terminal initiates the random access; and carrying out signaling and data interaction with the terminal through the available air interface entity.

In the embodiment of the present invention, the control plane unit receives a measurement report reported by the terminal, and configures an available air interface entity in a random access process for the terminal according to the measurement report.

Referring to fig. 4, a schematic structural diagram of a base station according to an embodiment of the present invention is shown, where the base station 400 includes: a processor 401, a transceiver 402, a memory 403, a user interface 404 and a bus interface.

In the embodiment of the present invention, the first communication device 400 further includes: a program stored in memory 403 and executable on processor 401.

The processor 401, when executing the program, implements the following steps: '

After receiving a connection establishment request message or a connection modification request message sent by a terminal, a control plane unit acquires user context information and/or wireless resource demand information of the terminal, and sends the wireless resource demand information of the terminal to a wireless resource plane unit, and/or sends the user context information of the terminal to the user context plane unit;

storing or managing resource information of each empty entity and/or resource usage rules of the empty entity by the radio resource plane unit with the empty entity as a unit, allocating radio resources to the terminal according to the resource information and/or resource usage rules of the empty entity after receiving the radio resource demand information of the terminal sent by the control plane unit, and sending a radio resource allocation result to the user context plane unit;

and storing or managing the user context information of the terminal sent by the control plane unit through the user context plane unit, and/or recording the resources of an air interface entity occupied by the terminal according to the wireless resource allocation result of the terminal sent by the wireless resource plane unit.

Optionally, the processor further implements the following steps when executing the program:

after the wireless resource is allocated to the terminal through the wireless resource plane unit, sending a wireless resource allocation result to the control plane unit; and after receiving the radio resource allocation result sent by the radio resource plane unit through the control plane unit, sending a message carrying the radio resource allocation result to the terminal.

receiving, by the control plane unit, a connection release request message sent by the terminal, and sending, to the radio resource plane unit, first release information for releasing resources of an air interface entity occupied by the terminal; and releasing the resources of the air interface entity occupied by the terminal according to the first release information by the radio resource interface unit.

receiving, by the control plane unit, a context establishment, deletion, or modification request message sent by the terminal, and sending the context establishment, deletion, or modification request message to the radio resource plane unit; and allocating, recovering or updating the resources of the air interface entity for the terminal through the radio resource interface unit according to the context establishment, deletion or modification request message, and sending the resource information of the air interface entity allocated, recovered or updated for the terminal to a user plane context unit.

receiving a cell reselection or switching request of a terminal through the control surface unit, and determining a target cell for cell reselection or switching; when the source cell and the target cell for cell reselection or switching are both cells under the entity module of the radio resource control function, sending a radio resource allocation request for cell reselection or switching to the radio resource plane unit; allocating, by the radio resource plane unit, radio resources for the cell reselection or handover according to the radio resource allocation request, and sending a radio resource allocation result allocated for the cell reselection or handover to the user context plane unit; and updating the resources of the air interface entity occupied by the terminal according to the wireless resource allocation result allocated by the cell reselection or switching through the user context unit.

when a source cell and a target cell of the cell reselection or handover belong to cells under different radio resource control functional entity modules respectively, the control plane unit sends a radio resource allocation request of the cell reselection or handover to a target radio resource plane unit, wherein the target radio resource plane unit is a radio resource plane unit under the radio resource control functional entity module to which the target cell belongs; after receiving a confirmation message of cell reselection or switching completion sent by the target radio resource plane unit, sending second release information for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit; and releasing the resources of the air interface entity occupied by the terminal according to the second release information by the radio resource interface unit.

pre-selecting a candidate target cell for the terminal to reselect or switch through the radio resource plane unit, and sending a pre-established message carrying information of the candidate target cell to the control plane unit; and the radio resource plane unit establishes the connection between the candidate target cell and a core network for the terminal in advance according to the pre-establishment message, and sends a link switching signaling for switching an air interface link to the candidate target cell to the terminal when the terminal moves to the candidate target cell.

allocating one empty entity, a plurality of empty entities or an empty entity cluster to the terminal through the radio resource interface unit according to the receiving quality of the empty signal of the empty entity and the load of the empty entity by the terminal; and when the number of the empty port entities allocated to the terminal is more than 1, selecting the empty port entity for sending data and/or signaling to the terminal according to the receiving quality of the empty port signal of each empty port entity through the control plane unit.

configuring information of an available empty entity in a random access process for the terminal through an empty entity which initiates random access through the terminal by the control plane unit; and carrying out signaling and data interaction with the terminal through the available air interface entity.

and receiving a measurement report reported by the terminal through the control plane unit, and configuring an available air interface entity in the random access process for the terminal according to the measurement report.

It is understood that, in the embodiment of the present invention, when being executed by the processor 401, the computer program can implement the processes of the radio resource control method embodiment shown in fig. 3, and can achieve the same technical effects, and is not described herein again to avoid repetition.

In FIG. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 401, and various circuits, represented by memory 403, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 402 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 404 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 401 is responsible for managing the bus architecture and general processing, and the memory 403 may store data used by the processor 401 in performing operations.

It should be noted that the first communication device in this embodiment is a first communication device corresponding to the method shown in fig. 3, and the implementation manners in the above embodiments are all applied to the embodiment of the first communication device, and the same technical effects can be achieved. In the first communication device, the transceiver 402 and the memory 403, and the transceiver 402 and the processor 401 may be communicatively connected through a bus interface, the function of the processor 401 may also be implemented by the transceiver 402, and the function of the transceiver 402 may also be implemented by the processor 401. It should be noted that, the first communication device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and details of the same parts and beneficial effects as the method embodiment in this embodiment are not described herein again.

In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:

When executed by the processor, the program can implement all the implementation manners of the radio resource control method applied to the base station side, and can achieve the same technical effect, and is not described herein again to avoid repetition.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

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, 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 of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A radio resource control function entity module of a base station, comprising at least one of a control plane unit, a radio resource plane unit and a user context plane unit, wherein:

the radio resource plane unit is configured to store or manage resource information of each air interface entity and/or a resource usage rule of the air interface entity in units of air interface entities, allocate radio resources to the terminal according to the resource information and/or the resource usage rule of the air interface entity after receiving the radio resource demand information of the terminal sent by the control plane unit, and send a radio resource allocation result to the user context plane unit;

2. The rrc function module according to claim 1, wherein the air interface entity is a cell or another predefined entity for indicating air interface resources, and the cell includes a physical cell and/or a logical cell.

3. The radio resource control function entity module of claim 1,

the radio resource allocation result includes at least one of:

the wireless resource information of each air interface entity and the use rule corresponding to the wireless resource information;

4. The radio resource control function entity module of claim 1,

the radio resource plane unit is further configured to send a radio resource allocation result to the control plane unit after allocating radio resources to the terminal;

5. The radio resource control function entity module of claim 1,

the control plane unit is further configured to receive a connection release request message sent by the terminal, and send first release information used for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit;

6. The radio resource control function entity module of claim 1,

the control plane unit is further configured to receive a context setup, deletion, or modification request message sent by the terminal, and send the context setup, deletion, or modification request message to the radio resource plane unit;

7. The radio resource control function entity module of claim 1,

the control plane unit is further configured to receive a cell reselection or handover request of the terminal, and determine a target cell for cell reselection or handover; when the source cell and the target cell for cell reselection or switching are both cells under the entity module of the radio resource control function, sending a radio resource allocation request for cell reselection or switching to the radio resource plane unit;

8. The RRC function entity module of claim 7,

the control plane unit is further configured to send a radio resource allocation request for cell reselection or handover to a target radio resource plane unit when a source cell and a target cell for cell reselection or handover belong to cells under different radio resource control functional entity modules, where the target radio resource plane unit is a radio resource plane unit under a radio resource control functional entity module to which the target cell belongs; after receiving a confirmation message of cell reselection or switching completion sent by the target radio resource plane unit, sending second release information for releasing resources of an air interface entity occupied by the terminal to the radio resource plane unit;

9. The radio resource control function entity module of claim 1,

the radio resource plane unit is further configured to pre-select a candidate target cell for reselection or handover of the terminal, and send a pre-establishment message carrying information of the candidate target cell to the control plane unit;

10. The radio resource control function entity module of claim 1,

the radio resource plane unit is further configured to allocate an air interface entity, multiple air interface entities, or an air interface entity cluster to the terminal according to the receiving quality of an air interface signal of the air interface entity by the terminal and the load of the air interface entity;

11. The radio resource control function entity module of claim 1,

the control plane unit is further configured to configure, for the terminal, information of an available empty entity in a random access process, through an empty entity that the terminal initiates the random access; and carrying out signaling and data interaction with the terminal through the available air interface entity.

12. The radio resource control function entity module of claim 1,

and the control plane unit is further configured to receive a measurement report reported by the terminal, and configure an available air interface entity in a random access process for the terminal according to the measurement report.

13. A radio resource control method applied to a base station, wherein the base station includes at least one of a control plane unit, a radio resource plane unit, and a user context plane unit, the method comprising:

14. The method according to claim 13, wherein the air interface entity is a cell or other predefined entity for representing air interface resources, and the cell includes a physical cell and/or a logical cell.

15. The method of claim 13,

the radio resource allocation result includes at least one of:

16. The method of claim 13, further comprising:

17. The method of claim 13, further comprising:

18. The method of claim 13, further comprising:

19. The method of claim 13, further comprising:

20. The method of claim 19, further comprising:

21. The method of claim 13, further comprising:

22. The method of claim 13, further comprising:

23. The method of claim 13, further comprising:

24. The method of claim 13, further comprising:

25. A base station, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 13 to 24.

26. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 13 to 24.