CN103596197B

CN103596197B - Cell management method under a kind of local access node and device

Info

Publication number: CN103596197B
Application number: CN201210289195.7A
Authority: CN
Inventors: 付喆; 梁靖; 赵亚利
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2012-08-14
Filing date: 2012-08-14
Publication date: 2016-09-14
Anticipated expiration: 2032-08-14
Also published as: CN103596197A

Abstract

The invention discloses the cell management method under a kind of local access node and device, realize the cell management under local access node during for being polymerized the local resource of multiple base stations at user equipment (UE).The method includes: under the scene of the local resource of the multiple base stations of user equipment (UE) polymerization, local access node receives UE to the metrical information of community under this this locality access node by evolved macro base station Macro eNB；Local access node according to UE to the metrical information of community under this this locality access node, it may be judged whether need UE execution cell management under this this locality access node；When local access node determine need that UE is performed the cell management under this this locality access node time, cell management information is notified to UE by this locality access node.

Description

Cell management method and device under local access node

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a cell management method and apparatus under a local access node.

Background

A network architecture of an Evolved Universal Radio Access network (E-UTRAN) is shown in fig. 1, where the E-UTRAN is composed of Evolved node bs (enbs). The eNB performs an access network function and communicates with a User Equipment (UE) through an air interface. There is both a control plane connection and a user plane connection between the UE and the eNB. For each UE attached to the network, it is served by a Mobility Management Entity (MME), which is connected to the eNB using a control plane S1 interface (S1 for the control plane, S1-MME). The S1-MME interface provides the UE with services to the control plane, including mobility management and bearer management functions. The S-GW is connected to the eNB using a user plane S1 interface (S1 for the user plane, S1-U), and for each UE attached to the network, there is one S-GW serving it. The S1-U interface provides user plane service for the UE, and user plane data of the UE is transmitted between the S-GW and the eNB through the S1-U bearer.

Compared with a Long Term Evolution (LTE) system, the peak rate of LTE-a (LTE advanced) is required to be greatly increased to reach 1Gbps downlink and 500Mbps uplink. Meanwhile, the LTE-a system requires compatibility with the LTE system. Based on the consideration of improving the peak rate, being compatible with the LTE system and fully utilizing the spectrum resources, the LTE-a system introduces a Carrier Aggregation (CA) technology.

According to existing protocols, carrier aggregation techniques allow a terminal to operate simultaneously on multiple cells under one base station. This cell aggregated by the UE is collectively called a Serving cell (Serving cell), but the functions of different Serving cells may not be completely the same, and are classified into the following two types according to the functions:

primary Cell (PCell): the user equipment aggregates only one cell in a plurality of cells to be defined as a PCell, the PCell is selected by a base station and is configured to the terminal through Radio Resource Control (RRC) signaling. The PCell undertakes most of the control and signaling work, such as sending uplink feedback for downlink data, Channel Quality Indicator (CQI) reporting, uplink pilot transmission, and the like;

secondary Cell (SCell): all cells except the PCell among all cells aggregated by the ue are scells, and are mainly used as resources to perform data transmission.

Component Carrier (CC) management, also called cell management, is introduced based on CA scenarios. In a narrow sense, CC management only includes management of secondary cells in the case of CA, such as adding, modifying, deleting scells; however, management of the primary cell in a broad sense, such as PCell determination and PCell change, may also be included in the category of CC management.

The base station may need to consider various factors, such as measurement results, load, interference, and the like, when performing CC management. In the existing carrier aggregation system, since the UE only operates under one eNB, the UE reports measurement results (such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and similar information) to the base station through a cell under the base station, and the base station performs cell management according to the measurement results and other information, and initiates an RRC reconfiguration procedure or a handover procedure to notify the UE to perform corresponding processing when necessary: the CC management of the SCell is realized through an RRC reconfiguration process; and for the PCell change, the change is realized through a switching process.

In the prior art, no solution is provided for cell management under a local access node when UE simultaneously aggregates cell resources of a plurality of base stations/nodes; due to the limitation of the RRC function of the local access node, it is also necessary to consider that the Macro eNB assists the local access node to implement autonomous cell management and control of the local access node, so as to improve the management efficiency of the base station.

Disclosure of Invention

The embodiment of the invention provides a cell management method and a cell management device under a local access node, which are used for realizing the management of cells under the local access node when User Equipment (UE) aggregates cell resources of a plurality of base stations.

The cell management method under the local access node provided by the embodiment of the invention comprises the following steps:

under the scene that User Equipment (UE) aggregates cell resources of a plurality of base stations, a local access node receives measurement information of the UE on a cell of the local access node through an evolved Macro base station Macro eNB;

the local access node judges whether cell management under the local access node needs to be executed on the UE according to the measurement information of the UE on the cell of the local access node;

when the local access node determines that cell management under the local access node needs to be performed on the UE, the local access node notifies the UE of the cell management information.

Another cell management method under a local access node of a local base station according to an embodiment of the present invention includes:

under the scene that User Equipment (UE) aggregates cell resources of a plurality of base stations, the UE measures cells under a local access node;

the UE reports the measurement information of the UE to a local access node cell through an evolved Macro base station Macro eNB;

and the UE receives the cell management information from the local access node and carries out corresponding processing according to the cell management information.

The cell management device under the local access node of the local base station provided by the embodiment of the invention comprises:

the receiving unit is used for receiving the measurement information of the UE on the cell of the local access node through an evolved Macro base station Macro eNB under the scene that the UE aggregates the cell resources of a plurality of base stations;

a judging unit, which judges whether the cell management under the local access node needs to be executed to the UE according to the measurement information of the UE to the cell of the local access node;

and the notification unit is used for notifying the cell management information to the UE by the local access node when the judgment unit determines that the cell management under the local access node needs to be executed on the UE.

Another cell management apparatus under a local access node of a local base station according to an embodiment of the present invention includes:

the measurement unit is used for measuring the cell under the local access node under the scene that the user equipment UE aggregates the cell resources of a plurality of base stations;

a reporting unit, configured to report, by an evolved Macro base station Macro eNB, measurement information of a cell under the local access node by a measurement unit in a scenario where a user equipment UE aggregates cell resources of multiple base stations;

and the receiving unit is used for receiving the cell management information from the local access node under the scene that the user equipment UE aggregates the cell resources of the plurality of base stations, and carrying out corresponding processing according to the cell management information.

According to the technical scheme, under the scene that User Equipment (UE) aggregates a plurality of base station cell resources, two methods for realizing the autonomous management of the cell by the local access node are provided:

in the embodiment of the invention, a local access node receives the measurement information of a cell of the local access node from UE through an evolved Macro base station Macro eNB; the local access node judges whether cell management under the local access node needs to be executed on the UE according to the measurement information of the UE on the cell of the local access node; when the local access node determines that cell management under the local access node needs to be performed on the UE, the local access node notifies the UE of the cell management information. Or, the UE measures the cell under the local access node; the UE reports the measurement information of the UE to a local access node cell through an evolved Macro base station Macro eNB; the UE receives the cell management information of the local access node and processes it accordingly. Thereby providing a solution for the local access node to implement autonomous cell management and control under the local node.

Drawings

FIG. 1 is a prior art E-UTRAN network architecture diagram;

FIG. 2 is a diagram of a hierarchical network deployment scenario in the prior art;

fig. 3 is a schematic flowchart of a cell management method under a local access node according to an embodiment of the present invention;

fig. 4 is a schematic flowchart of another method for managing a cell under a local access node according to an embodiment of the present invention;

FIG. 5 is a schematic flow chart diagram of an embodiment of the present invention;

FIG. 6 is a schematic flow chart diagram illustrating another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a local access node in an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a UE in an embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a cell management method and a cell management device under a local access node of a local base station, which are used for realizing the management of cells under the local access node when User Equipment (UE) aggregates cell resources of a plurality of base stations.

Referring to fig. 3, at a local access node, a method for cell management under a local access node of a local base station according to an embodiment of the present invention includes:

s301, under the scene that User Equipment (UE) aggregates cell resources of a plurality of base stations, a local access node receives measurement information of the UE on a cell of the local access node through an evolved Macro base station Macro eNB;

s302, the local access node judges whether cell management under the local access node needs to be executed on the UE according to the measurement information of the UE on the cell of the local access node;

s303, when the local access node determines that the cell management of the UE under the local access node needs to be executed, the local access node notifies the cell management information to the UE.

Preferably, the scene includes a bearing separation scene.

Preferably, the cell management under the local access node specifically includes: the local access node adds or modifies or deletes the auxiliary cell of the UE; and the local access node configures or changes the primary cell of the UE.

Preferably, when the local access node has the measurement configuration function and the local access node configures the UE to measure the frequency point (or cell) of the local access node, the local access node may also directly receive the measurement information reported by the UE for the cell of the local access node.

Preferably, the notifying, by the local access node, the management information of the local cell to the UE includes: the local access node directly informs the UE of the cell management information; or the local access node informs the UE of the cell management information through RRC signaling of the Macro eNB.

Preferably, the notifying, by the local access node, the cell management information directly to the UE includes: the local access node notifies the cell management information of the local access node to the UE through RRC signaling (when the local access node has partial RRC function, at least including RRC reconfiguration function, radio resource management function, or the like) of the local access node or media access control element MAC CE or physical layer signaling.

Referring to fig. 4, on the UE side, another cell management method under the local access node of the local base station according to the embodiment of the present invention includes:

s401, under the scene that User Equipment (UE) aggregates cell resources of a plurality of base stations, the UE measures cells under a local access node;

s402, reporting measurement information of the UE to a local access node cell through an evolved Macro base station Macro eNB by the UE;

s403, the UE receives the cell management information from the local access node and performs corresponding processing according to the cell management information.

Preferably, the scene includes a bearing separation scene.

Preferably, the cell management information specifically includes: the local access node adds or modifies or deletes the information of the auxiliary cell of the UE; and the local access node configures or changes the information of the primary cell of the UE.

Preferably, when the local access node has the measurement configuration function and the local access node configures the UE to measure the frequency point (or cell) under the local access node, the UE may also directly report the measurement information of the UE to the cell of the local access node to the local access node.

Preferably, the UE receiving cell management information from a local access node includes: the UE directly receives cell management information sent by a local access node; or the UE receives the cell management information forwarded by the Macro eNB from the local access node.

Preferably, the UE directly receives the cell management information sent by the local access node, including: the cell management information from the local access node is received directly through RRC signaling (when the local access node has partial RRC function, at least RRC reconfiguration function, radio resource management function, or the like) or media access control element MAC CE or physical layer signaling that is sent by the local access node and contains the cell management information.

Preferably, after the UE performs corresponding processing according to the cell management information, the method further includes:

the UE directly feeds back a local access node cell reconfiguration completion message to the local access node; or,

and the UE forwards the local access node cell reconfiguration completion message to the local access node through the Macro eNB.

Several specific examples are given below.

The first embodiment is as follows:

in existing hierarchical networks such as that shown in fig. 2, a Macro base station (referred to as Macro eNB) provides base coverage, a low power small base station (referred to herein as Local eNB) provides hot spot coverage, a data/signaling interface (which may be a wired or wireless interface) exists between the Local eNB and the Macro eNB, and a UE may operate under the Macro eNB or the Local eNB. Since the Local eNB has a small cell coverage and serves a small number of UEs, the UEs connected to the Local eNB tend to have better quality of service, such as: and a link with higher service rate and higher quality is obtained. Therefore, when a UE connected to the Macro eNB enters the coverage of the cell corresponding to the Local eNB, the UE may be transferred to the Local eNB to obtain the service provided by the Local eNB; when the UE is far away from the cell coverage area corresponding to the Local eNB, the UE needs to be transferred to a cell controlled by the Macro eNB to maintain wireless connection.

The network architecture shown in fig. 2 may support user bearer separation. When the Macro eNB cell and the Local eNB cell overlap the coverage area, the bearers of the corresponding UEs may be scheduled and transmitted under different base stations. After the UE receives the bearer detach command, the different bearers of the UE are transmitted on the different connected base stations/access nodes. Taking the user bearer separation with the user plane and the control plane separated as an example, at this time, the UE is simultaneously connected to two enbs, and the air interface thereof is connected with two situations: the Macro eNB is responsible for Radio Resource Control (RRC) signaling transmission and partial data transmission, and the Local eNB is responsible for partial data transmission; or the Macro eNB is responsible for RRC signaling transmission such as mobility management and partial user data transmission, and the Local eNB is responsible for RRC signaling transmission such as radio resource management and partial user data transmission. Further, in both cases, all user data bearers of the UE may also be transmitted only on the Local eNB.

Further, when the node without complete base station function provides hot spot coverage/local coverage, the node is only responsible for partial UE data transmission and is not responsible for RRC signaling transmission such as radio resource management; such nodes, and Local enbs, may both support UE bearer separation, referred to as Local access nodes.

Under the architecture supporting UE bearer separation, a Primary Cell (Primary Cell, Pcell) and a Secondary Cell (Secondary Cell, SCell) similar to those under macro enb may also be supported under the local access node. The Primary Cell (Pcell) of the local access node has a similar function as the Macro eNB Pcell, such as being configured with a Physical Uplink Control Channel (PUCCH), and is related to the radio link failure RLF decision of the local access node, but has a different function, such as being unrelated to security.

The local access node autonomously performs local serving cell management, and when the local access node determines that the cell management of the UE at the local area needs to be performed (such as performing addition/modification/deletion of a secondary cell, and configuration/change of a primary cell), the local access node notifies the UE to perform a corresponding operation through RRC signaling (when the local access node has a partial RRC function, at least includes an RRC reconfiguration function, a radio resource management function, or the like)/mac ce/physical layer signaling (without performing interaction between base stations, the UE is notified by a Macro eNB). The unit corresponding to the local access node is a base station or similar equipment which does not have an RRC function and is only responsible for partial user data transmission; alternatively, the base station or the like may be provided with only an RRC function such as radio resource management and a part of user data transmission functions.

Referring to fig. 5, a cell management method under a local access node provided in this embodiment, especially a cell management method under a local access node having at least a partial RRC function, includes:

step S501: measuring and reporting;

if the Macro eNB is an initial access base station of the UE, the Macro eNB configures the UE to measure each frequency point under a Local access node aggregated with Macro, and the UE reports the measurement result of a cell (marked as a Local cell) of the Local access node through the Macro cell. (description: if the local access node is the initial access base station of the UE, the local access node configures the UE to measure the frequency points under other base stations aggregated with the local access node; when the condition of load separation is met, the UE is firstly switched to the Macro eNB, and the Macro eNB initiates the process of load separation of the UE; when the UE is in the state of load separation, for the local access node which has partial RRC function and is aggregated by the UE, the Macro eNB or the local access node can configure the UE to measure the frequency points (or cells) under the base station.)

When the UE is in a bearing separation state (namely the UE aggregates resources of a plurality of base stations to serve the UE), the UE reports the measurement result of the Local cell to the Macro eNB through the Macro cell, and the Macro eNB interacts information such as the UE identification, the measurement result under the Local access node reported by the UE and the like to the corresponding Local access node. Particularly, when the Local access node further has a measurement configuration function and the Local access node configures the UE to measure the frequency point (or cell) under the Local access node, the UE directly reports the measurement result of the Local cell to the corresponding Local access node through the corresponding Local cell.

Step S502: initial main/auxiliary cell configuration under local access node;

when the bearing separation condition is met, the Macro eNB exchanges information such as UE identification, measurement results of frequency points (of local cells) under the local access node and the like to the local access node through an interface between base stations; specifically, the information such as the measurement result can be interacted in the following ways:

the Macro eNB can interact all received measurement result information (including information such as UE identification) reported by corresponding UE to all local access nodes aggregated with the Macro eNB;

the Macro eNB only interacts the measurement results (including UE identification and other information) reported by the UE and related to the corresponding local access nodes aggregated with the UE.

The local access node configures a main cell/an auxiliary cell of the corresponding UE under the base station for the corresponding UE according to the conditions of the measurement result of Macro eNB interaction, cell load, interference and the like according to the existing cell selection and management rules; then, the Local access node interacts Local cell information such as the UE identity, Local cell radio resource configuration information, and cell identity (including frequency point, PCI, etc.) to the Macro eNB. After receiving the information of the interaction of the Local access nodes, the Macro eNB informs the UE of the information of the related Local cells interacted with the Local access nodes when sending a bearer separation command to the UE; this notification may be accomplished using an RRC connection reconfiguration procedure, or other newly defined means.

Subsequently, the Local access node may activate/deactivate a serving cell (mainly referred to as a secondary cell) configured for the UE by the Local access node according to information such as data transmission requirements (for example, a DRB to be transferred), and may determine whether a random access process of the UE on a corresponding cell needs to be triggered according to a synchronization condition of the Local cell.

Step S503: adding/modifying/deleting of the auxiliary cell under the local access node, and configuring/changing of the main cell;

during bearer separation of the UE (i.e. when the UE aggregates resources of multiple base stations to serve the UE), the local access node determines whether to perform cell management of the UE under the base station (e.g. adding, modifying, or deleting secondary cells, and configuring/changing primary cells) according to the current cell selection and management rules according to the measurement results of local cells reported by the UE, cell loads, interference, and the like.

When the Local access node determines that the addition/modification/deletion of the secondary cell in the base station needs to be performed on the UE, and when the configuration/modification of the primary cell is performed, the Local access node stops data transceiving performed on the UE on the corresponding Local cell/Local access node according to the situation (for example, when the secondary cell is modified, the Local access node stops data transceiving performed on the UE on the corresponding Local cell). Then, the Local access node notifies the UE to change the configured Local cell (the content may include adding/modifying/deleting of the secondary cell, and configuring/changing of the primary cell) through an RRC reconfiguration command (when the Local access node has at least a radio resource management function, an RRC reconfiguration function, or the like)/MAC CE/physical layer signaling, or other newly defined manner. The information carried to the UE will also be different according to the different notification signaling used by the local access node. For example, when a Local cell is modified, if the Local access node notifies the UE to change the configured Local cell in an RRC signaling manner, at least the Local access node needs to carry a corresponding cell identifier and radio resource configuration information; if the Local access node notifies the UE to change the configured Local cell in a MAC CE manner or a physical layer signaling manner, the Local access node at least needs to carry a cell identifier. For the mode of MAC CE or physical layer signaling, information such as radio resource configuration information of a Local cell, cell identifiers (including frequency points, PCI, and the like) is notified to the UE by the Macro eNB when the bearers are separated, and when Local cell management is subsequently performed, resource configuration of corresponding parameters is not changed, and only cell identifiers corresponding to the primary serving cell and the secondary serving cell are changed: the Local access node indicates which Local cell is changed to a new primary cell, which Local cells are changed to secondary cells and which Local cells are no longer used as the UE serving cell by the UE in a bitmap indication mode.

And after receiving the notification of the Local cell for changing the configuration sent by the Local access node, the UE stops data transceiving on the corresponding Local cell/Local access node according to the corresponding indication and reconfigures the corresponding physical layer and MAC layer. When the base station notifies the UE of changing the configured Local cell through RRC signaling or the like, the UE feeds back a Local cell reconfiguration complete message (or called a Local cell reconfiguration complete message) to the Local access node, and the subsequent UE receives and transmits data according to the new configuration. And after receiving the feedback of the corresponding UE, the local access node schedules the UE to receive and transmit data according to the new configuration.

Subsequently, the Local access node may activate/deactivate a serving cell (mainly referred to as a secondary cell) configured for the UE by the Local access node according to information such as data transmission requirements, and may determine whether a random access process of the UE on a corresponding cell needs to be triggered according to a synchronization condition of the Local cell.

Particularly, when the Local access node sends a message for changing the configured Local cell to the UE, a timer may be started at the same time for performing failure processing. When the timer is over time, the local access node still does not receive the UE feedback, and the local access node performs corresponding failure processing.

The second embodiment is as follows:

the UE reports the measurement result of each frequency point under the local access node to a Macro eNB through a Macro cell; the Macro eNB interacts information such as UE identification and reported measurement results with the aggregated local access node; the local access node autonomously performs service cell management under the base station according to the mutual measurement result of the Macro eNB, cell load, interference and other conditions; when the local access node determines that cell management of the UE under the base station needs to be performed (for example, adding/modifying/deleting a secondary cell and configuring/changing a primary cell), the local access node interacts information such as UE identity, cell identity, radio resource configuration and the like to the Macro eNB, and the Macro eNB notifies the UE to perform corresponding operations through RRC signaling. The local access node is not provided with an RRC function and is only responsible for partial user data transmission; or, the method is only responsible for RRC signaling transmission such as radio resource management and part of user data transmission. The unit corresponding to the local access node is a base station or similar equipment which does not have an RRC function and is only responsible for partial user data transmission; alternatively, the base station or the like may be provided with only an RRC function such as radio resource management and a part of user data transmission functions.

Referring to fig. 6, the method for managing a cell under a local access node according to this embodiment includes:

step S601: measuring and reporting;

and when the Macro eNB is an initial access base station of the UE, the Macro eNB configures the UE to measure each frequency point under the local access node aggregated with the Macro. Because the Local access node does not have the RRC function, even when the UE is in the bearer split state (i.e. when the UE aggregates resources of multiple base stations to serve the UE), the UE reports the measurement result of the Local cell by the UE through the Macro cell, and then the Macro eNB interacts with the corresponding Local access node.

Specifically, the information such as the measurement result can be interacted in the following ways:

the Macro eNB only interacts the measurement results (including information such as UE identification) reported by the UE and related to the corresponding local access nodes with the corresponding aggregated local access nodes;

step S602: initial main/auxiliary cell configuration under local access node;

when the condition of bearer separation is satisfied, the Macro eNB may exchange information such as UE identifiers, measurement results of frequency points (of local cells) in the local access node, and the like to the local access node through an interface between base stations, where the exchange manner of the information such as the measurement results and the like may be as described in step S501.

The local access node configures a main cell/an auxiliary cell of the corresponding UE under the base station for the corresponding UE according to the conditions of the measurement result of Macro eNB interaction, cell load, interference and the like according to the existing cell selection and management rules; then, the Local access node interacts Local cell information such as the UE identity, Local cell radio resource configuration information, and cell identity (including frequency point, PCI, etc.) to the Macro eNB. After receiving the information interacted by the Local access node, the Macro eNB informs the UE of the information of the Local cell interacted by the Local access node when sending a bearer separation command to the UE. This notification may be accomplished using an RRC connection reconfiguration procedure, or other newly defined means.

Step S603: adding/modifying/deleting of the auxiliary cell under the local access node, and configuring/changing of the main cell;

during bearer separation of the UE (namely, when the UE aggregates resources of a plurality of base stations to serve the UE), the UE reports the measurement result of the Local cell to the Macro eNB through the Macro cell, and the Macro eNB interacts information such as the UE identifier and the measurement result of the Local cell to the Local access node. The interaction mode of the Macro eNB on the measurement result (including the UE identification and other information) of the Local cell can be real-time interaction or interaction only when the triggering condition is met. For the latter, the trigger condition for exchanging the measurement result may be time-triggered (e.g. exchanging once every Ts), or event-triggered (e.g. Macro eNB performs preliminary processing, and considers that the measurement result is greater than/less than the threshold value in the previous time).

The local access node judges whether to execute cell management (such as adding/modifying/deleting of an auxiliary cell and configuring/changing of a main cell) of the UE under the base station according to the measurement result, cell load, interference and other conditions of the cell (marked as local cell) of the local access base station interacted by the Macro eNB and the existing cell selection and management rule.

When the Local access node determines that the addition/modification/deletion of the secondary cell in the base station needs to be performed on the UE, and when the configuration/modification of the primary cell is performed, the Local access node stops data transceiving performed on the UE on the corresponding Local cell/Local access node according to the situation (for example, when the secondary cell is modified, the Local access node stops data transceiving performed on the UE on the corresponding Local cell). The Local access node interacts Local cell information such as a UE identifier, Local cell wireless resource configuration information, a cell identifier (including frequency points, PCI and the like) and the like to the Macro eNB, and informs the Macro eNB to change the configured Local cell for the UE (the content can include addition/modification/deletion of an auxiliary cell and configuration/modification of a main cell). The Macro eNB notifies the UE of the information of the Local cell (including the Local cell radio resource configuration information, the cell identifier, etc.) interacted with the Local access node through the RRC connection reconfiguration process or other newly defined manners.

After receiving the notification of the Local cell for changing the configuration sent by the Macro eNB, the UE stops data transceiving on the corresponding Local cell/Local access node according to the corresponding indication, reconfigures the corresponding physical layer and MAC layer, and feeds back a Local cell reconfiguration complete message (or called a Local cell completion message for changing the configuration) to the Macro eNB, and the subsequent UE will perform data transceiving according to the new configuration. After receiving the feedback of the corresponding UE, the macro enb sends information such as the UE identifier and a Local cell reconfiguration complete message (or a Local cell reconfiguration complete message called as a configuration change) to the corresponding Local access node, and the subsequent Local access node schedules the UE to receive and transmit data according to the new configuration.

Particularly, when the Macro eNB notifies the UE to change the configured Localcell through the RRC connection reconfiguration and other processes, a timer may be started at the same time for performing reconfiguration failure detection. When the timer is overtime, the Macro eNB still does not receive the UE feedback, the Macro eNB informs the local access node of reconfiguration failure, and the local access node performs corresponding failure processing.

Referring to fig. 7, a local access node provided by the present invention includes:

a receiving unit 71, configured to receive, by a Macro eNB, measurement information of a cell of the local access node from a user equipment UE in a scenario where the UE aggregates cell resources of multiple base stations;

a determining unit 72, configured to determine whether cell management under the local access node needs to be performed on the UE according to measurement information of the UE on the cell of the local access node;

and a notifying unit 73 configured to notify the local access node of the cell management information to the UE when the judging unit 72 determines that the cell management under the local access node needs to be performed for the UE.

Preferably, the scene includes a bearing separation scene.

Preferably, if the local access node has the measurement configuration function and the local access node configures the UE to measure the frequency point (or cell) of the local access node, the receiving unit 71 may also directly receive the measurement information of the UE to the cell of the local access node, which is reported by the UE.

Preferably, the notification unit 73 is specifically configured to: directly informing the cell management information of the local access node to the UE; or the cell management information of the local access node is notified to the UE through RRC signaling of the Macro eNB.

Preferably, the notifying unit 73 directly notifies the UE of the cell management information of the local access node, which is specifically configured to: the management information of the Local cell is notified to the UE through RRC signaling (when the Local access node has partial RRC function, at least RRC reconfiguration function, radio resource management function, or the like) of the Local access node or media access control element MAC CE or physical layer signaling.

Referring to fig. 8, a user equipment UE provided in the present invention includes:

a measurement unit 81, configured to measure a cell under a local access node in a scenario where a user equipment UE aggregates cell resources of multiple base stations;

a reporting unit 82, configured to report, by using an evolved Macro base station Macro eNB, measurement information of a cell under the local access node, which is obtained by the measurement unit 81, in a scenario where a user equipment UE aggregates cell resources of multiple base stations;

a receiving unit 83, configured to receive the cell management information from the local access node, and perform corresponding processing according to the cell management information.

Preferably, the scene includes a bearing separation scene.

Preferably, the information about cell management specifically includes: the local access node adds or modifies or deletes the information of the auxiliary cell of the UE; and the local access node configures or changes the information of the primary cell of the UE.

Preferably, if the local access node has the measurement configuration function and the local access node configures the UE to measure the frequency point (or cell) under the local access node, the reporting unit 82 may also directly report the measurement information of the UE to the cell of the local access node to the local access node.

Preferably, the receiving unit 83 is configured to, when receiving the cell management information from the local access node, specifically: directly receiving cell management information sent by a local access node; or receiving the cell management information forwarded by the Macro eNB from the local access node.

Preferably, the receiving unit 83 directly receives the cell management information sent by the local access node, and is specifically configured to:

the cell management information from the local access node is received directly through RRC signaling (when the local access node has partial RRC function, at least including radio resource management function, RRC reconfiguration function, or the like) or media access control element MAC CE or physical layer signaling that is sent by the local access node and contains the cell management information.

Preferably, the receiving unit 83 is further configured to, after performing corresponding processing according to the cell management information:

directly feeding back a local access node cell reconfiguration completion message to the local access node; or,

and forwarding the local access node cell reconfiguration completion message to the local access node through the Macro eNB.

In summary, the present invention provides a method for a local access node to implement autonomous cell management of the local node in a scenario (especially, a scenario with separated bearers) where a user aggregates cell resources of multiple base stations, where objects related to cell management are all cells under the local access node, and specific management contents may include: addition/modification/deletion of secondary cells under the local access node, and primary cell configuration/change under the local access node (when the local access node may also be introduced to the primary cell). According to the method, under the condition that a user aggregates a plurality of base stations (particularly, bearing separation), the autonomous cell management and control of the local nodes are realized by assisting the local access nodes through the Macro eNB, and the base station management efficiency is improved.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for cell management under a local access node, the method comprising:

when determining that cell management under the local access node needs to be performed on the UE, the local access node notifies the UE of the cell management information.

2. The method of claim 1, wherein the scene comprises a bearer split scene.

3. The method according to claim 1, wherein the cell management under the local access node specifically includes:

the local access node adds or modifies or deletes the auxiliary cell of the UE; and the number of the first and second groups,

the local access node configures or changes the primary cell of the UE.

4. The method of claim 1, wherein the local access node informs the UE of cell management information, comprising:

the local access node directly informs the UE of the cell management information; or

And the local access node informs the UE of the cell management information through Radio Resource Control (RRC) signaling of the Macro eNB.

5. The method of claim 4, wherein the local access node directly informs the UE of the cell management information, and wherein the method comprises:

the local access node informs the UE of the cell management information through RRC signaling or media access control element (MAC CE) or physical layer signaling of the local access node.

6. A method for cell management under a local access node, the method comprising:

7. The method of claim 6, wherein the scene comprises a bearer split scene.

8. The method according to claim 6, wherein the cell management information specifically includes:

the local access node adds or modifies or deletes the information of the auxiliary cell of the UE; and the number of the first and second groups,

the local access node configures or changes the information of the primary cell of the UE.

9. The method of claim 6, wherein the UE receives cell management information from a local access node, comprising:

the UE directly receives cell management information sent by a local access node; or,

and the UE receives the cell management information forwarded by the Macro eNB from the local access node.

10. The method of claim 9, wherein the UE directly receives the cell management information sent by the local access node, and comprises:

the UE receives the cell management information from the local access node directly through RRC signaling or media access control element (MAC CE) or physical layer signaling which is sent by the local access node and contains the cell management information.

11. The method of claim 6, wherein after the UE performs the corresponding processing according to the cell management information, the method further comprises:

12. A local access node, comprising:

13. The node of claim 12, wherein the scenario comprises a bearer split scenario.

14. The node according to claim 12, wherein the cell management under the local access node specifically includes:

the local access node configures or changes the primary cell of the UE.

15. The node according to claim 12, wherein the notification unit is specifically configured to:

directly informing the cell management information of the local access node to the UE; or,

and informing the UE of the cell management information of the local access node through Radio Resource Control (RRC) signaling of the Macro eNB.

16. The node according to claim 15, wherein the notifying unit directly notifies the UE of the cell management information of the local access node, and is specifically configured to:

and informing the cell management information to the UE through RRC signaling or Media Access Control (MAC) CE or physical layer signaling of the local access node.

17. A user equipment, UE, comprising:

18. The UE of claim 17, wherein the scenario comprises a bearer split scenario.

19. The UE of claim 17, wherein the cell management information specifically includes:

20. The UE of claim 17, wherein the receiving unit is specifically configured to:

directly receiving cell management information sent by a local access node; or,

and receiving the cell management information forwarded by the Macro eNB from the local access node.

21. The UE of claim 20, wherein the receiving unit directly receives the cell management information sent by the local access node, and is specifically configured to:

and directly receiving the cell management information from the local access node through RRC signaling or media access control element (MAC CE) or physical layer signaling which is sent by the local access node and contains the cell management information.

22. The UE of claim 17, wherein the receiving unit is configured to, after performing corresponding processing according to the cell management information, further configured to: