CN108633108B

CN108633108B - Access control method, access method, device, base station, user equipment and entity

Info

Publication number: CN108633108B
Application number: CN201810296461.6A
Authority: CN
Inventors: 肖登坤; 吴彤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-20
Filing date: 2013-03-20
Publication date: 2022-04-05
Anticipated expiration: 2033-03-20
Also published as: WO2014146261A1; CN104186021B; CN108633108A; CN104186021A

Abstract

Disclosed are a carrier aggregation access control method, an access method, an apparatus, a base station, a user equipment and a mobility management entity between base stations, wherein the method comprises the following steps: receiving a radio resource management measurement report sent by user equipment supporting carrier aggregation; acquiring an auxiliary cell frequency point selected for user equipment by a target service node to which an auxiliary cell belongs according to a wireless resource management measurement report, and corresponding uplink random access physical resource block resources; and sending the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource to user equipment, so that the user equipment initiates random access on the auxiliary cell according to the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource and establishes a wireless link. In the embodiment of the invention, when the service nodes of the main cell and the auxiliary cell are different, the success rate of random access of the user equipment with carrier aggregation on the auxiliary cell is improved, and the throughput performance of the network is further improved.

Description

Access control method, access method, device, base station, user equipment and entity

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a method, an apparatus, a base station, a user equipment, and a mobility management entity for controlling carrier aggregation access between base stations.

Background

With the rapid development of mobile communication systems, a future Long Term Evolution (LTE) or Long-term Evolution-enhanced (LTE-a) system needs to provide higher-rate and wider-coverage service transmission to meet the demand of people for higher-rate communication services. As spectrum resources become more scarce, in the prior art, in order to further improve the spectrum efficiency and the system throughput of the system, a novel Carrier Aggregation (CA) technology is proposed, and the CA technology has been proposed as one of important system enhancement technologies in an evolution version in an LTE-a system.

Currently, for the evolution of carrier aggregation in the third Generation Partnership Project (3 GPP) standard, the signaling and requirements defined in the standard for carrier aggregation technology are mainly for the intra-eNB scenario, i.e. the primary cell and the secondary cell serving a certain User Equipment (UE) share one "site", which is mainly controlled by one base station.

However, the carrier aggregation scenario is not limited to the intra-eNB, and in an actual carrier aggregation operation scenario, a situation that the primary cell and the secondary cell are "not co-sited" may occur, which is carrier aggregation between base stations. Inter-base station carrier aggregation may be further classified into carrier aggregation between macro base stations and Low Power Nodes (LPNs). In the current standard, the content related to carrier aggregation between base stations is less, and for an access control algorithm, because addition and deletion of a primary cell to a secondary cell both need to perform corresponding signaling interaction through an X2 port or an S1 port, the flow of access control is completely different from that of an intra-eNB.

Therefore, in the prior art, because the primary cell and the secondary cell do not share the same site, the primary cell knows less information about the resource condition of the secondary cell, and how to perform signaling interaction between the primary cell and the secondary cell effectively ensures that the UE can be more effectively accessed into the network, thereby improving the success rate of random access of the UE, and further improving the throughput and user experience of the entire network.

Disclosure of Invention

The embodiment of the invention provides a carrier aggregation access control method, an access device, a base station, user equipment and a mobile management entity among base stations, so as to improve the success rate of UE random access.

In order to solve the technical problem, the embodiment of the invention discloses the following technical scheme:

a first aspect provides a method for controlling carrier aggregation access between base stations, where the method includes:

receiving a radio resource management measurement report sent by user equipment supporting carrier aggregation;

acquiring an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs according to the radio resource management measurement report, and corresponding uplink random access physical resource block resources;

and sending the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource to the user equipment, so that the user equipment initiates random access on the auxiliary cell according to the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource and establishes a wireless link.

In a first possible implementation manner of the first aspect, the acquiring a secondary cell frequency point selected by a target serving node to which a secondary cell belongs for the user equipment and a corresponding uplink random access physical resource block resource includes:

sending an auxiliary cell resource request message to the target serving node according to the radio resource management measurement report, wherein the auxiliary cell resource request message comprises: the source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment for the target service node; or the source service node of the main cell requests an auxiliary cell frequency point distributed for the user equipment by the target service node of the auxiliary cell and corresponding uplink random access physical resource block resources;

receiving a secondary cell resource request acknowledgement message sent by the target serving node, where the secondary cell resource request acknowledgement message includes: the target service node selects one auxiliary cell frequency point for the user equipment from the auxiliary cell frequency point list and corresponding uplink random access physical resource block resources; or the target service node allocates an auxiliary cell frequency point for the user equipment and a corresponding uplink random access physical resource block resource.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the secondary cell resource request message further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a third possible implementation manner,

if the secondary cell resource request acknowledgement message includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the method further comprises: selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points; or;

if the secondary cell resource request acknowledgement message includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the method further comprises the following steps: and selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

With reference to the first aspect or the first, second, or third possible implementation manner of the first aspect, in a fourth possible implementation manner, the acquiring a secondary cell frequency point selected by a target serving node to which a secondary cell belongs for the user equipment and a corresponding uplink random access physical resource block resource includes:

sending a secondary cell resource demand message to a mobile management entity according to the radio resource management measurement report, wherein the secondary cell resource demand message comprises: the PCI of the target service node and an auxiliary cell frequency point list which is selected for the target service node and is suitable for the user equipment; or the PCI of the target service node and a source service node of a main cell request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

receiving a secondary cell resource demand confirmation message sent by the mobility management entity, where the secondary cell resource demand confirmation message includes: the PCI of a target service node, one auxiliary cell frequency point selected by the target service node from the auxiliary cell frequency point list for the user equipment, and a corresponding uplink random access physical resource block resource; or the PCI of the target service node, an auxiliary cell frequency point distributed by the target service node for the user equipment, and a corresponding uplink random access physical resource block resource.

With reference to the first aspect or the first or second or third or fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the secondary cell resource requirement message further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the first aspect or the first or second or third or fourth or fifth possible implementation manner of the first aspect, in a sixth possible implementation manner,

if the secondary cell resource demand confirm message includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the method further comprises: selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points; or

If the resource demand response message includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the method further comprises the following steps: and selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

With reference to the first aspect or the first or second or third or fourth or fifth or sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the target service node includes: an evolved base station or a low power node.

A second aspect provides an access method, the method comprising:

sending a radio resource management measurement report to a source service node to which a main cell belongs;

receiving an auxiliary cell frequency point selected for user equipment by a target service node to which an auxiliary cell belongs and sent by the source service node, and corresponding uplink random access physical resource block resources;

and initiating random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource, and establishing a wireless link.

In a first possible implementation manner of the second aspect, the receiving an auxiliary cell frequency point selected for user equipment by a target serving node to which an auxiliary cell belongs and sent by the source serving node, and a corresponding uplink random access physical resource block resource includes:

receiving secondary cell configuration information sent by the source service node, where the secondary cell configuration information includes: and the target service node is an auxiliary cell frequency point selected by the user equipment and a corresponding uplink random access physical resource block resource.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, the source service node and the target service node are both: an evolved base station or a low power node.

A third aspect provides a method for controlling carrier aggregation access between base stations, where the method includes:

receiving an auxiliary cell resource request message sent by a mobile management entity or a source service node to which a main cell belongs, wherein the auxiliary cell resource request message comprises: a source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment supporting carrier aggregation for a target service node to which the auxiliary cell belongs; or, the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

selecting one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of a plurality of self frequency points, and randomly accessing uplink to physical resource block resources corresponding to each auxiliary cell frequency point; or one or more auxiliary cell frequency points distributed for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point according to the load and service conditions of a plurality of self frequency points;

sending a secondary cell resource request acknowledgement message to the source serving node or the mobility management entity, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so that the source service node controls the user equipment to initiate random access on the secondary cell and establish a wireless link.

In a first possible implementation manner of the third aspect, the secondary cell resource request message further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the selecting, according to the load and the service condition of multiple frequency points of the user equipment, multiple secondary cell frequency points for the user equipment from the secondary cell frequency point list specifically includes:

and selecting a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of the plurality of frequency points per se and the priority sequencing of the user service quality.

A fourth aspect provides a method for controlling carrier aggregation access between base stations, the method comprising:

receiving an auxiliary cell resource demand message sent by a source service node to which a main cell belongs, wherein the auxiliary cell resource demand message comprises: the PCI of a target service node to which an auxiliary cell belongs, and an auxiliary cell frequency point list which is selected by the source service node for the target service node and is suitable for user equipment supporting carrier aggregation; or, the PCI of a target service node to which the auxiliary cell belongs and the source service node request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

sending the auxiliary cell resource request message to the target service node according to the PCI of the target service node; the secondary cell resource request message includes: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for the target service node; or, the source service node requests the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

receiving a secondary cell resource request confirmation message sent by the target service node, wherein the secondary cell resource request confirmation message comprises: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point;

a secondary cell resource demand acknowledgement message sent to the source serving node, where the secondary cell resource demand acknowledgement message includes: the PCI of the target service node, one or more auxiliary cell frequency points and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the PCI of the target service node, one or more auxiliary cell frequency points allocated by the target service node for the user equipment, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point; so that the source serving node controls the user equipment to initiate random access on the secondary cell and establish a wireless link.

In a first possible implementation form of the fourth aspect,

the secondary cell resource demand message further includes: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality;

the secondary cell resource request message further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the secondary cell resource request acknowledgement message further includes: and the plurality of auxiliary cell frequency points selected for the user equipment are information which is sorted according to the priority of the user service quality.

A fifth aspect provides an inter-base station carrier aggregation access control apparatus, including:

a receiving unit, configured to receive a radio resource management measurement report sent by a user equipment supporting carrier aggregation;

an obtaining unit, configured to obtain, according to the radio resource management measurement report, an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs, and a corresponding uplink random access physical resource block resource;

and the sending unit is used for sending the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource to the user equipment so as to control the user equipment to initiate random access on the auxiliary cell according to the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource and establish a wireless link.

In a first possible implementation manner of the fifth aspect, the obtaining unit includes:

a first sending unit, configured to send a secondary cell resource request message to a target serving node according to the rrm measurement report, where the secondary cell resource request message includes: selecting a list of secondary cell frequency points suitable for the user equipment for a target service node; or the source service node of the main cell requests an auxiliary cell frequency point distributed for the user equipment by the target service node of the auxiliary cell and corresponding uplink random access physical resource block resources;

a first receiving unit, configured to receive a secondary cell resource request acknowledgement message sent by the target serving node, where the secondary cell resource request acknowledgement message includes: the target service node selects one auxiliary cell frequency point for the user equipment from the auxiliary cell frequency point list and corresponding uplink random access physical resource block resources; or the target service node allocates an auxiliary cell frequency point for the user equipment and a corresponding uplink random access physical resource block resource.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the secondary cell resource request message sent by the first sending unit further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the fifth aspect or the first or second possible implementation manner of the fifth aspect, in a third possible implementation manner,

if the secondary cell resource request acknowledgement message received by the first receiving unit includes: the target service node selects a plurality of auxiliary cell frequency points from the auxiliary cell frequency point list for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, and the acquiring unit further comprises:

a first selecting unit, configured to select an auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the multiple auxiliary cell frequency points according to a service condition in the cell and a load condition of each of the multiple auxiliary cell frequency points; or;

if the secondary cell resource request acknowledgement message received by the first receiving unit includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the acquiring unit further comprises:

and the second selection unit is used for selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

With reference to the fifth aspect or the first, second, or third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, the obtaining unit includes:

a second sending unit, configured to send a secondary cell resource requirement message to a mobility management entity according to the rrm measurement report, where the secondary cell resource requirement message includes: the PCI of the target service node and an auxiliary cell frequency point list which is selected for the target service node and is suitable for the user equipment; or the PCI of the target service node and a source service node of a main cell request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

a second receiving unit, configured to receive a secondary cell resource demand acknowledgement message sent by the mobility management entity, where the secondary cell resource demand acknowledgement message includes: the PCI of a target service node, one auxiliary cell frequency point selected by the target service node from the auxiliary cell frequency point list for the user equipment, and a corresponding uplink random access physical resource block resource; or the PCI of the target service node, an auxiliary cell frequency point distributed by the target service node for the user equipment, and a corresponding uplink random access physical resource block resource.

With reference to the fifth aspect or the first, second, third, or fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner, the secondary cell resource requirement message sent by the second sending unit further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the fifth aspect or the first or second or third or fourth or fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner,

if the secondary cell resource demand acknowledgement message received by the second sending unit includes: the target service node selects a plurality of auxiliary cell frequency points from the auxiliary cell frequency point list for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, and the acquiring unit further comprises:

a third selecting unit, configured to select an auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the multiple auxiliary cell frequency points according to a service condition in the cell and a load condition of each of the multiple auxiliary cell frequency points; or

If the resource demand response message received by the second transmitting unit includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the acquiring unit further comprises:

and the fourth selection unit is used for selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the auxiliary cell frequency points.

With reference to the fifth aspect or the first or second or third or fourth or fifth or sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner, the apparatus is integrated in an enodeb or a low power node; or deployed independently.

A sixth aspect provides an access apparatus, comprising:

a sending unit, configured to send a radio resource management measurement report to a source serving node to which a primary cell belongs;

a receiving unit, configured to receive an auxiliary cell frequency point, which is selected by a target service node to which an auxiliary cell belongs and is sent by the source service node, for a user equipment supporting carrier aggregation, and a corresponding uplink random access physical resource block resource;

and the access unit is used for initiating random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource and establishing a wireless link.

In a first possible implementation manner of the sixth aspect, the receiving unit is specifically configured to receive secondary cell configuration information sent by the source serving node, where the secondary cell configuration information includes: and the target service node to which the auxiliary cell belongs selects an auxiliary cell frequency point for the user equipment supporting carrier aggregation and a corresponding uplink random access physical resource block resource.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the apparatus is integrated in a user equipment; or deployed independently.

A seventh aspect provides an apparatus for controlling carrier aggregation access between base stations, including:

a receiving unit, configured to receive a resource request message sent by a mobility management entity or a source serving node to which a primary cell belongs, where the resource request message of the secondary cell includes: a source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment supporting carrier aggregation for a target service node to which the auxiliary cell belongs; or, the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

a selecting unit, configured to select one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of multiple frequency points of the selecting unit, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point; or one or more auxiliary cell frequency points distributed for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point according to the load and service conditions of a plurality of self frequency points;

a sending unit, configured to send a secondary cell resource request acknowledgement message to the source serving node or the mobility management entity, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link.

In a first possible implementation manner of the seventh aspect, the secondary cell resource request message received by the receiving unit further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner, when the selecting unit selects multiple secondary cell frequency points for the user equipment from the secondary cell frequency point list, the multiple secondary cell frequency points are sorted according to priorities of user service qualities, where the priorities may be sorted from high to low or from low to high.

With reference to the seventh aspect or the first or second possible implementation manner of the seventh aspect, in a third possible implementation manner, the apparatus is integrated in an evolved node b or a low power node; or deployed independently.

An eighth aspect provides a carrier aggregation access control apparatus between base stations, including:

a first receiving unit, configured to receive a secondary cell resource demand message sent by a source serving node to which a primary cell belongs, where the secondary cell resource demand message includes: the PCI of a target service node to which an auxiliary cell belongs, and an auxiliary cell frequency point list which is selected by the source service node for the target service node and is suitable for user equipment supporting carrier aggregation; or, the PCI of a target service node to which the auxiliary cell belongs and the source service node request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

a first sending unit, configured to send the secondary cell resource request message to the target serving node according to the PCI of the target serving node; the secondary cell resource request message includes: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for a target service node; or, the source service node requests the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

a second receiving unit, configured to receive a secondary cell resource request acknowledgement message sent by the target serving node, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point;

a second sending unit, configured to send a secondary cell resource demand acknowledgement message to the source serving node, where the secondary cell resource demand acknowledgement message includes: the PCI of the target service node, one or more auxiliary cell frequency points and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point, or the PCI of the target service node, the one or more auxiliary cell frequency points distributed by the target service node for the user equipment and the uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link.

In a first possible implementation form of the eighth aspect,

the secondary cell resource demand message received by the first receiving unit further includes: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality;

the secondary cell resource request message sent by the first sending unit further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner,

and the second receiving unit receives a plurality of auxiliary cell frequency points selected by the target service node from the auxiliary cell frequency point list for the user equipment, wherein the plurality of auxiliary cell frequency points are ordered according to the priority of the user service quality.

With reference to the eighth aspect or the first or second possible implementation manner of the eighth aspect, in a third possible implementation manner, the apparatus is integrated in a mobility management entity; or deployed independently.

A ninth aspect provides a base station comprising:

a wireless transceiver for receiving a radio resource management measurement report transmitted by a user equipment supporting carrier aggregation; acquiring an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs according to the radio resource management measurement report, and corresponding uplink random access physical resource block resources; and sending the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource to the user equipment, so that the user equipment initiates random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource and establishes a wireless link

In a first possible implementation manner of the ninth aspect, the process of the wireless transceiver acquiring an auxiliary cell frequency point selected by a target service node to which an auxiliary cell belongs for the user equipment and a corresponding uplink random access physical resource block resource includes:

the wireless transceiver sends an auxiliary cell resource request message to the target serving node according to the radio resource management measurement report, wherein the auxiliary cell resource request message comprises: selecting a list of secondary cell frequency points suitable for the user equipment for the target service node; or the source service node of the main cell requests an auxiliary cell frequency point distributed for the user equipment by the target service node of the auxiliary cell and corresponding uplink random access physical resource block resources; receiving a secondary cell resource request acknowledgement message sent by the target serving node, where the secondary cell resource request acknowledgement message includes: the target service node selects one auxiliary cell frequency point for the user equipment from the auxiliary cell frequency point list and corresponding uplink random access physical resource block resources; or the target service node allocates an auxiliary cell frequency point for the user equipment and a corresponding uplink random access physical resource block resource.

With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in a second possible implementation manner, the secondary cell resource request message sent by the wireless transceiver further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the ninth aspect or the first or second possible implementation manner of the ninth aspect, in a third possible implementation manner, the secondary cell resource request acknowledgement message received by the wireless transceiver includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the base station further comprises:

the processor is used for selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points; or

If the secondary cell resource request acknowledgement message received by the wireless transceiver comprises: the target service node distributes a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the auxiliary cell frequency points are arranged, the auxiliary cell frequency points are arranged according to priorities, and the base station further comprises:

and the processor is used for selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

With reference to the ninth aspect or the first, second, or third possible implementation manner of the ninth aspect, in a fourth possible implementation manner, the acquiring, by the wireless transceiver, an auxiliary cell frequency point selected for the user equipment by a target serving node to which an auxiliary cell belongs and a corresponding uplink random access physical resource block resource by the wireless transceiver specifically includes:

the wireless transceiver sends a secondary cell resource demand message to a mobile management entity according to the radio resource management measurement report, wherein the secondary cell resource demand message comprises: the PCI of the target service node and an auxiliary cell frequency point list which is selected for the target service node and is suitable for the user equipment; or the PCI of the target service node and a source service node of a main cell request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; and receiving a secondary cell resource demand acknowledgement message sent by the mobility management entity, wherein the secondary cell resource demand acknowledgement message includes: the PCI of a target service node, one auxiliary cell frequency point selected by the target service node from the auxiliary cell frequency point list for the user equipment, and a corresponding uplink random access physical resource block resource; or the PCI of the target service node, an auxiliary cell frequency point distributed by the target service node for the user equipment, and a corresponding uplink random access physical resource block resource.

With reference to the ninth aspect or the first or second or third or fourth possible implementation manner of the ninth aspect, in a fifth possible implementation manner, the secondary cell resource requirement message sent by the wireless transceiver further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the ninth aspect or the first or second or third or fourth or fifth possible implementation manner of the ninth aspect, in a sixth possible implementation manner,

the secondary cell resource requirement acknowledgement message received by the wireless transceiver comprises: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the base station further comprises:

If the resource demand response message received by the wireless transceiver includes: the target service node distributes a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the auxiliary cell frequency points are arranged, the auxiliary cell frequency points are arranged according to priorities, and the base station further comprises:

A tenth aspect provides a user equipment comprising:

a transceiver for transmitting a radio resource management measurement report to a source serving node to which a primary cell belongs; receiving an auxiliary cell frequency point selected for user equipment by a target service node to which an auxiliary cell belongs and sent by the source service node, and corresponding uplink random access physical resource block resources; and initiating random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource, and establishing a wireless link.

In a first possible implementation manner of the tenth aspect, the receiving, by the transceiver, an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs and sent by the source service node, and a corresponding uplink random access physical resource block resource includes:

An eleventh aspect provides a base station comprising:

a wireless transceiver, configured to receive a secondary cell resource request message sent by a mobility management entity or a source serving node to which a primary cell belongs, where the secondary cell resource request message includes: a source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment supporting carrier aggregation for a target service node to which the auxiliary cell belongs; or, the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

the processor is used for selecting one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of a plurality of self frequency points and selecting uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or one or more auxiliary cell frequency points distributed for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point according to the load and service conditions of a plurality of self frequency points;

the wireless transceiver is further configured to send a secondary cell resource request acknowledgement message to the source serving node or the mobility management entity, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link.

In a first possible implementation manner of the eleventh aspect, the secondary cell resource request message sent by the wireless transceiver further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in a second possible implementation manner, the processor is further configured to select, according to the load and the service conditions of multiple frequency points of the processor, multiple secondary cell frequency points from the secondary cell frequency point list according to a priority ranking of user service quality for the user equipment.

A twelfth aspect provides a mobility management entity comprising:

a wireless transceiver, configured to receive an auxiliary cell resource demand message sent by a source service node to which a primary cell belongs, where the auxiliary cell resource demand message includes: the PCI of a target service node to which an auxiliary cell belongs, and an auxiliary cell frequency point list which is selected by the source service node for the target service node and is suitable for user equipment supporting carrier aggregation; or, the PCI of a target service node to which the auxiliary cell belongs and the source service node request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; sending the auxiliary cell resource request message to the target service node according to the PCI of the target service node; the secondary cell resource request message includes: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for the target service node; or, the source service node requests the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; and receiving a secondary cell resource request acknowledgement message sent by the target serving node, wherein the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; and a secondary cell resource demand acknowledgement message sent to the source serving node, the secondary cell resource demand acknowledgement message including: the PCI of the target service node, one or more auxiliary cell frequency points and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the PCI of the target service node, one or more auxiliary cell frequency points allocated by the target service node for the user equipment, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link.

In a first possible implementation manner of the twelfth aspect, the secondary cell resource requirement message sent by the wireless transceiver further includes: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality; and the transmitted secondary cell resource request message further comprises: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

With reference to the twelfth aspect or the first possible implementation manner of the twelfth aspect, in a second possible implementation manner, the receiving, by the wireless transceiver, the secondary cell resource request acknowledgement message further includes: and the plurality of auxiliary cell frequency points selected for the user equipment are information which is sorted according to the priority of the user service quality.

According to the technical scheme, in the embodiment of the invention, when the service nodes of the main cell and the auxiliary cell are different, the success rate of random access of the user equipment with carrier aggregation on the auxiliary cell is improved, and the throughput performance of the network is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention;

fig. 2 is a flowchart of an access method according to an embodiment of the present invention;

fig. 3 is another flowchart of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention;

fig. 4 is another flowchart of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an apparatus for controlling carrier aggregation between base stations according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an access device according to an embodiment of the present invention;

fig. 7 is another schematic structural diagram of an apparatus for controlling carrier aggregation between base stations according to an embodiment of the present invention;

fig. 8 is another schematic structural diagram of an apparatus for controlling carrier aggregation between base stations according to an embodiment of the present invention;

fig. 9 is a flowchart of a first application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention;

fig. 10 is a flowchart of a second application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention;

fig. 11 is a flowchart of a third application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention;

fig. 12 is a flowchart of a fourth application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1, which is a flowchart of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention; the method comprises the following steps:

step 101: receiving a radio resource management measurement report sent by user equipment supporting carrier aggregation;

wherein, the radio resource management measurement report received by the source serving node to which the primary cell belongs is a measurement report related to Radio Resource Management (RRM), the measurement report is a RRM measurement report of a User Equipment (UE) at each frequency point and each node, and the content of the measurement report includes: reference Signal Received Power (RSRP) measurement, Reference Signal Received Quality (RSRQ) measurement, or other measurement, although this embodiment is not limited thereto.

Wherein, the radio resource management measurement report may further include target serving node information to which the secondary cell belongs.

Among them, in carrier aggregation, a Cell responsible for network connection and resource configuration for a user equipment, and performing radio link re-establishment and handover of the user equipment is referred to as a "Primary Cell" (Pcell). In addition to the primary Cell, a Cell that maintains radio resource connection with the user equipment and provides additional spectrum resources for data transmission is called a "Secondary Cell" (Scell).

Step 102: acquiring an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs according to the radio resource management measurement report, and corresponding uplink random access physical resource block resources;

in this embodiment, a source serving node to which a primary cell (Pcell) belongs obtains an auxiliary cell frequency point selected for the user equipment by a target serving node to which an auxiliary cell (Scell) belongs, and a corresponding uplink random access physical resource block resource, in two ways:

the first way of obtaining is: the source service node of the main cell directly sends a resource request message of the auxiliary cell to a target service node of the auxiliary cell according to the radio resource management measurement report, wherein the resource request message of the auxiliary cell comprises: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for a target service node; and receiving a secondary cell resource request acknowledgement message sent by the target serving node, wherein the secondary cell resource request acknowledgement message includes: and the target service node selects one auxiliary cell frequency point for the user equipment from the auxiliary cell frequency point list and corresponding uplink random access physical resource block resources.

Optionally, the secondary cell resource request message may further include: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality. That is to say, the secondary cell frequency points in the secondary cell frequency point list are ordered according to the priority of the user service quality.

Optionally, if the secondary cell resource request acknowledgement message includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the method may further include: and selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

In this embodiment, if a source service node to which a primary cell belongs may directly communicate with a target service node to which an auxiliary cell belongs, the source service node may directly send the auxiliary cell resource request message to the target service node through an X2 interface (or other interfaces), and receive an auxiliary cell resource request acknowledgement message sent by the target service node through an X2 interface, thereby obtaining one or more auxiliary cell frequency points selected by the target service node for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point.

The second acquisition mode is that a source service node to which a main cell belongs receives a radio resource management measurement report sent by user equipment supporting carrier aggregation; directly sending a secondary cell resource request message to the target serving node, where the secondary cell resource request message includes: a source service node to which a main cell belongs requests an auxiliary cell frequency point which is distributed to the user equipment by a target service node to which an auxiliary cell belongs, and a corresponding uplink random access physical resource block resource; and receiving a secondary cell resource request acknowledgement message sent by the target serving node, wherein the secondary cell resource request acknowledgement message includes: and the target service node is an auxiliary cell frequency point distributed by the user equipment and a corresponding uplink random access physical resource block resource.

That is to say, in this embodiment, the source serving node to which the primary cell belongs does not need to send, to the serving node to which the secondary cell belongs, the multiple secondary cell frequency points and the corresponding uplink random access physical resource block resources that have been selected for the user equipment; but directly requesting the target service node to allocate a proper auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment.

Optionally, if the secondary cell resource request acknowledgement message includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the method further comprises the following steps: and selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

A third obtaining manner is that, in this embodiment, if the source serving node to which the primary cell belongs and the target serving node to which the secondary cell belongs cannot communicate, the source serving node may communicate with the target serving node through the mobility management entity, and the process is as follows:

the source service node sends an auxiliary cell resource demand message to a mobile management entity according to the radio resource management measurement report, wherein the auxiliary cell resource demand message comprises: the PCI of the target service node and an auxiliary cell frequency point list which is selected for the target service node and is suitable for the user equipment; and receiving a secondary cell resource demand acknowledgement message sent by the mobility management entity, wherein the secondary cell resource demand acknowledgement message includes: the PCI of the target service node, one auxiliary cell frequency point selected by the target service node from the auxiliary cell frequency point list for the user equipment, and corresponding uplink random access physical resource block resources.

Optionally, the secondary cell resource requirement message may further include: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality. That is to say, the secondary cell frequency points in the secondary cell frequency point list are ordered according to the priority of the user service quality.

Optionally, if the secondary cell resource demand acknowledgement message includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the method may further include:

and selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

The fourth acquisition mode is: the acquiring method is similar to the third method, and the difference is that the contents of the transmitted secondary cell resource demand message and the received secondary cell resource demand acknowledge message are different, specifically: a source service node sends a secondary cell resource demand message to a mobile management entity, wherein the secondary cell resource demand message comprises: the PCI of the target service node and a source service node of a main cell request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; and receiving a secondary cell resource demand acknowledgement message sent by the mobility management entity, wherein the secondary cell resource demand acknowledgement message includes: the PCI of a target service node, an auxiliary cell frequency point distributed by the target service node for the user equipment, and a corresponding uplink random access physical resource block resource.

Optionally, if the resource demand response message includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the method further comprises the following steps: and selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

Step 103: and sending the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource to the user equipment, so that the user equipment initiates random access on the auxiliary cell according to the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource and establishes a wireless link.

In this embodiment, if a source service node acquires an auxiliary cell frequency point selected by a target service node for the user equipment and a corresponding uplink random access physical resource block resource, the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource are directly sent to the user equipment, so that the user equipment initiates random access in the auxiliary cell and establishes wireless connection.

If the source service node acquires a plurality of auxiliary cell frequency points selected by the target service node for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, the plurality of auxiliary cell frequency points are sequenced according to priorities: the source service node selects an auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points. Normally, the frequency point with the highest priority is selected, and of course, the selection may be performed according to actual situations.

And then, sending the selected frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource to the user equipment so that the user equipment can initiate random access in the auxiliary cell and establish wireless connection.

Optionally, in this embodiment, the source service node may be: an evolved node B, which can also be a low-power node; the target serving node may be: the enb may also be a low power node, but is not limited to this, and may also include other serving nodes, which is not limited in this embodiment. The low power Node may be a pico Node, a home base station (HeNB), a repeater (repeater), a Relay Node (RN), or the like.

In the method for controlling carrier aggregation access between base stations provided in the embodiments of the present invention, when a serving node to which a primary cell and a secondary cell belong is different, a source serving node (i.e., the serving node to which the primary cell belongs) sends a selected secondary cell frequency point list suitable for a user equipment supporting carrier aggregation to a target serving node (i.e., the serving node to which the secondary cell belongs), so that the target serving node selects a secondary cell frequency point for the user equipment and a corresponding uplink random access physical resource block resource, so that the user equipment initiates random access on the secondary cell according to the secondary cell frequency point and a corresponding uplink random access physical resource block resource, and establishes a wireless link. Therefore, the success rate of random access of the user equipment for carrier aggregation on the auxiliary cell can be effectively improved, and the throughput performance of the network is further improved.

Referring to fig. 2, fig. 2 is a flowchart of an access method according to an embodiment of the present invention, where the method includes:

step 201: sending a radio resource management measurement report to a source service node to which a main cell belongs;

in this embodiment, the radio resource management measurement report includes: and supporting each frequency point measured by the user equipment of carrier aggregation and the RSRP measurement result and the RSRQ measurement result of each node. However, the present invention is not limited to this, and other measurement results may be adaptively included, and the present embodiment is not limited to this.

Step 202: receiving an auxiliary cell frequency point selected for user equipment by a target service node to which an auxiliary cell belongs and sent by the source service node, and corresponding uplink random access physical resource block resources;

receiving, by a user equipment supporting carrier aggregation, secondary cell configuration information sent by the source serving node, where the secondary cell configuration information includes: and the target service node to which the auxiliary cell belongs is an auxiliary cell frequency point selected by the user equipment and a corresponding uplink random access physical resource block resource. Wherein, the secondary cell configuration information may further include parameters such as a physical cell identifier.

In this embodiment, the ue receives the secondary cell configuration information sent by the source serving node through an RRC connection reconfiguration message, and may also pass through other messages, which is not limited in this embodiment.

Step 203: and initiating random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource, and establishing a wireless link.

After receiving the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource, the user equipment can initiate a random access request on the auxiliary cell and complete the establishment of a wireless link of the auxiliary cell, thereby completing the access control under the inter-eNB.

Optionally, the source service node and the target service node may both be: an evolved base station or a low power node.

In the embodiment of the invention, since the user equipment supporting carrier aggregation can know the auxiliary cell frequency point selected by the target service node which the auxiliary cell belongs to and sent by the source service node which the main cell belongs to and the corresponding uplink random access physical resource block resource, the success rate of random access on the auxiliary cell can be effectively achieved, and the throughput performance of the network can be further improved.

Referring to fig. 3, fig. 3 is another flowchart of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention, where the method includes:

step 301: receiving an auxiliary cell resource request message sent by a mobile management entity or a source service node to which a main cell belongs, wherein the auxiliary cell resource request message comprises: a source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment supporting carrier aggregation for a target service node to which the auxiliary cell belongs; or, the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

in this embodiment, a serving node (i.e., a target serving node) to which the secondary cell belongs receives a secondary cell resource request message sent by a mobility management entity or a source serving node to which the primary cell belongs.

Step 302: selecting one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of a plurality of self frequency points, and randomly accessing uplink to physical resource block resources corresponding to each auxiliary cell frequency point; or one or more auxiliary cell frequency points distributed for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point according to the load and service conditions of a plurality of self frequency points;

in this embodiment, the service node to which the auxiliary cell belongs selects a most suitable frequency point and a corresponding uplink random access physical resource block resource for the user equipment supporting carrier aggregation according to the load conditions and service conditions of multiple frequency points of the service node itself and also according to the priority ranking condition given by the source service node.

Or directly allocating a most suitable frequency point and corresponding uplink random access physical resource block resource to the user equipment supporting carrier aggregation.

Of course, the service node to which the auxiliary cell belongs may select a plurality of most suitable frequency points and uplink random access physical resource block resources corresponding to each frequency band for the user equipment supporting carrier aggregation according to the load conditions and service conditions of a plurality of frequency points of its own, and also according to the priority ordering conditions given by the source service node, where the frequency points of the plurality of auxiliary cells are ordered according to the priority of the user service quality.

Step 303: sending a secondary cell resource request acknowledgement message to the source serving node or the mobility management entity, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so that the source service node controls the user equipment to initiate random access on the secondary cell and establish a wireless link.

In the embodiment of the invention, when a target service node to which an auxiliary cell belongs receives an auxiliary cell frequency point list, which is sent by a source service node to which the main cell belongs or a mobile management entity and is suitable for supporting the user equipment with carrier aggregation, selected by a source server node to which the main cell belongs for the target service node to which the auxiliary cell belongs, one or more auxiliary cell frequency points and corresponding uplink random access physical resource block resources are selected for the user equipment according to the self condition; and selecting one or more auxiliary cell frequency points for the user equipment, and the source service node or the mobile management entity sent by the corresponding uplink random access physical resource block resource, so that the user equipment initiates random access on the auxiliary cell according to the auxiliary cell frequency points and the corresponding resource and establishes a wireless link.

Referring to fig. 4, fig. 4 is another flowchart of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention, in this embodiment, if a source serving node to which a primary cell belongs and a target serving node to which a secondary cell belongs perform information interaction through an X interface differently, the source serving node may perform information interaction with the target serving node through a mobility management entity. The specific process comprises the following steps:

step 401: receiving a secondary cell Resource demand message (Scell Resource Required) sent by a source service node to which a primary cell belongs, the secondary cell Resource demand message including: the physical cell identification PCI of a target service node to which a secondary cell belongs, and a secondary cell frequency point list which is selected by the source service node for the target service node and is suitable for user equipment supporting carrier aggregation; or, the PCI of a target service node to which the auxiliary cell belongs and the source service node request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

optionally, in this step, the secondary cell resource requirement message received by the mobility management entity may further include: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality; the sequences may be sorted from high to low, or from low to high, and this embodiment is not limited.

Step 402: sending the auxiliary cell resource request message to the target service node according to the PCI of the target service node; the secondary cell resource request message includes: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for the target service node; or, the source service node requests the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

in this step, the mobility management entity sends, to the target serving node, an auxiliary cell resource request message based on the PCI of the target serving node, where the auxiliary cell resource request message includes: the source serving node selects, for the target serving node, an auxiliary cell frequency point list suitable for the user equipment, where an optional case is that the auxiliary cell frequency points in the auxiliary cell frequency point list are sorted according to priorities of user service quality, and the priorities may be from high to low or from low to high, and this example is not limited.

Step 403: receiving a secondary cell resource request confirmation message sent by the target service node, wherein the secondary cell resource request confirmation message comprises: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point;

in this step, if the secondary cell resource request acknowledgment message received by the mobility management entity includes a plurality of secondary cell frequency points, the acknowledgment message may further include: and the plurality of auxiliary cell frequency points are information which is sequenced according to the priority of the user service quality. Or, if the secondary cell resource request acknowledgment message includes multiple secondary cell frequency points allocated for the user equipment, the acknowledgment message may further include: the multiple auxiliary cell frequency points distributed for the user equipment are information sorted according to the priority of the user service quality.

Step 404: a secondary cell resource demand acknowledgement message sent to the source serving node, where the secondary cell resource demand acknowledgement message includes: the PCI of the target service node, one or more auxiliary cell frequency points and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the PCI of the target service node, one or more auxiliary cell frequency points allocated by the target service node for the user equipment, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point; so that the source serving node controls the user equipment to initiate random access on the secondary cell and establish a wireless link.

In the embodiment of the invention, a source service node of a main cell sends an auxiliary cell frequency point list, which is suitable for supporting user equipment with carrier aggregation and is selected by a source service node as an auxiliary cell target service node, to the target service node through a mobile management entity, so that the target service node can select an auxiliary cell frequency point for the user equipment, and corresponding uplink random access physical resource block resources are provided, so that the user equipment can initiate random access on the auxiliary cell according to the frequency point and the corresponding resources, and a wireless link is established.

Based on the implementation process of the foregoing method, an embodiment of the present invention provides an apparatus for controlling carrier aggregation access between base stations, where a schematic structural diagram of the apparatus is shown in fig. 5, and the apparatus includes: a receiving unit 51, an obtaining unit 52 and a sending unit 53, where the receiving unit 51 is configured to receive a radio resource management measurement report sent by a user equipment supporting carrier aggregation; the acquiring unit 52 is configured to acquire, according to the radio resource management measurement report, an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs, and a corresponding uplink random access physical resource block resource; the sending unit 53 is configured to send the secondary cell frequency point and the corresponding uplink random access physical resource block resource to the user equipment, so that the user equipment initiates random access on the secondary cell according to the secondary cell frequency point and the corresponding uplink random access physical resource block resource, and establishes a wireless link.

Optionally, in an embodiment, the obtaining unit includes: a first sending unit and a first receiving unit, wherein the first sending unit is configured to send a secondary cell resource request message to a target serving node according to the rrm measurement report, and the secondary cell resource request message includes: selecting a list of secondary cell frequency points suitable for the user equipment for a target service node; or the source service node of the main cell requests an auxiliary cell frequency point distributed for the user equipment by the target service node of the auxiliary cell and corresponding uplink random access physical resource block resources;

optionally, the secondary cell resource request message sent by the first sending unit may further include: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality. The priority ranking may be from high to low or from low to high, and the secondary cell frequency points in the secondary cell frequency point list are ranked.

The first receiving unit is configured to receive a secondary cell resource request acknowledgement message sent by the target serving node, where the secondary cell resource request acknowledgement message includes: the target service node selects one auxiliary cell frequency point for the user equipment from the auxiliary cell frequency point list and corresponding uplink random access physical resource block resources; or the target service node allocates an auxiliary cell frequency point for the user equipment and a corresponding uplink random access physical resource block resource.

Optionally, in the above embodiment, if the secondary cell resource request acknowledgement message received by the first receiving unit includes: the target service node selects a plurality of auxiliary cell frequency points from the auxiliary cell frequency point list for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, and the acquiring unit may further include: and the first selection unit is used for selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

Optionally, in the above embodiment, if the secondary cell resource request acknowledgement message received by the first receiving unit includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the acquiring unit further comprises:

Optionally, in another embodiment, the obtaining unit includes: a second sending unit and a second receiving unit, where the second sending unit is configured to send a secondary cell resource requirement message to a mobility management entity according to the rrm measurement report, and the secondary cell resource requirement message includes: the PCI of the target service node and an auxiliary cell frequency point list which is selected for the target service node and is suitable for the user equipment; or the PCI of the target service node and a source service node of a main cell request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment;

optionally, the secondary cell resource requirement message sent by the second sending unit further includes: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality, and the sorting of the priority is shown as above, which is not described herein again.

The second receiving unit is configured to receive a secondary cell resource demand acknowledgement message sent by the mobility management entity, where the secondary cell resource demand acknowledgement message includes: the PCI of a target service node, one auxiliary cell frequency point selected by the target service node from the auxiliary cell frequency point list for the user equipment, and a corresponding uplink random access physical resource block resource; or the PCI of the target service node, an auxiliary cell frequency point distributed by the target service node for the user equipment, and a corresponding uplink random access physical resource block resource.

Optionally, if the secondary cell resource demand acknowledgement message received by the second sending unit includes: the target service node selects a plurality of auxiliary cell frequency points from the auxiliary cell frequency point list for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, and the acquiring unit may further include: and the third selecting unit is used for selecting one auxiliary cell frequency point and a corresponding uplink random access physical resource block for the user equipment from the plurality of auxiliary cell frequency points according to the service condition in the cell and the load condition of each auxiliary cell frequency point in the plurality of auxiliary cell frequency points.

Optionally, in the above embodiment, if the resource demand response message received by the second sending unit includes: the target service node allocates a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points are allocated, and the plurality of auxiliary cell frequency points are sequenced according to priorities, and the acquiring unit further comprises:

Optionally, in another embodiment, the obtaining unit may include the first sending unit, the first receiving unit, the second sending unit and the second receiving unit; on this basis, can also include: the functions and functions of the first selection unit and the second selection unit are described in detail above, and are not described in detail herein.

Optionally, the apparatus may be integrated in an enodeb or a low power node, or may be deployed in a network independently, which is not limited in this embodiment.

Please refer to fig. 6, which is a schematic structural diagram of an access apparatus according to an embodiment of the present invention, the apparatus includes: a sending unit 61, a receiving unit 62 and an accessing unit 63, where the sending unit 61 is configured to send a radio resource management measurement report to a source serving node to which a primary cell belongs; the receiving unit 62 is configured to receive an auxiliary cell frequency point, which is selected by a target service node to which an auxiliary cell belongs and is sent by the source service node, for a user equipment supporting carrier aggregation, and a corresponding uplink random access physical resource block resource; and the access unit 63 is configured to initiate random access in the auxiliary cell according to the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource, and establish a wireless link.

The receiving unit is specifically configured to receive secondary cell configuration information sent by the source serving node, where the secondary cell configuration information includes: and the target service node to which the auxiliary cell belongs selects an auxiliary cell frequency point for the user equipment supporting carrier aggregation and a corresponding uplink random access physical resource block resource.

Alternatively, the apparatus may be integrated in a user equipment; or may be deployed in the network independently, and the embodiment is not limited.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an apparatus for controlling carrier aggregation between base stations according to an embodiment of the present invention, where the apparatus includes: a receiving unit 71, a selecting unit 72, and a sending unit 73, where the receiving unit 71 is configured to receive a resource request message sent by a mobility management entity or a source serving node to which a primary cell belongs, and the secondary cell resource request message includes: a source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment supporting carrier aggregation for a target service node to which the auxiliary cell belongs; or, the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; the selecting unit 72 is configured to select one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of multiple frequency points of the user equipment, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point; or one or more auxiliary cell frequency points distributed for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point according to the load and service conditions of a plurality of self frequency points; the sending unit 73 is configured to send a secondary cell resource request acknowledgement message to the source serving node or the mobility management entity, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link.

Optionally, the secondary cell resource request message received by the receiving unit further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

Optionally, when the selecting unit selects a plurality of secondary cell frequency points for the user equipment from the secondary cell frequency point list, the plurality of secondary cell frequency points are sorted according to priorities of user service quality, where the priorities may be sorted from high to low or from low to high.

Optionally, the apparatus may be integrated in an evolved base station or a low power node; or deployed independently.

Referring to fig. 8, fig. 8 is another schematic structural diagram of an apparatus for controlling carrier aggregation between base stations according to an embodiment of the present invention, where the apparatus includes: a first receiving unit 81, a first sending unit 82, a second receiving unit 83, and a second sending unit 84, where the first receiving unit 81 is configured to receive a secondary cell resource demand message sent by a source serving node to which a primary cell belongs, and the secondary cell resource demand message includes: the PCI of a target service node to which an auxiliary cell belongs, and an auxiliary cell frequency point list which is selected by the source service node for the target service node and is suitable for user equipment supporting carrier aggregation; or, the PCI of a target service node to which the auxiliary cell belongs and the source service node request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; the first sending unit 82 is configured to send the secondary cell resource request message to the target serving node according to the PCI of the target serving node; the secondary cell resource request message includes: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for a target service node; or, the source service node requests the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; the second receiving unit 83 is configured to receive a secondary cell resource request acknowledgement message sent by the target serving node, where the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; the second sending unit 84 is configured to send a secondary cell resource demand acknowledgement message to the source serving node, where the secondary cell resource demand acknowledgement message includes: the PCI of the target service node, one or more auxiliary cell frequency points and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point, or the PCI of the target service node, the one or more auxiliary cell frequency points distributed by the target service node for the user equipment and the uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link. .

Optionally, the secondary cell resource demand message received by the first receiving unit further includes: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality;

Optionally, the second receiving unit receives a plurality of auxiliary cell frequency points selected by the target service node for the user equipment from the auxiliary cell frequency point list, where the plurality of auxiliary cell frequency points are sorted according to the priority of the user service quality.

Alternatively, the apparatus may be integrated in a mobility management entity; or deployed independently.

Correspondingly, an embodiment of the present invention further provides a base station, where the base station includes: a wireless transceiver for receiving a radio resource management measurement report transmitted by a user equipment supporting carrier aggregation; acquiring an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs according to the radio resource management measurement report, and corresponding uplink random access physical resource block resources; and sending the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource to the user equipment, so that the user equipment initiates random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource and establishes a wireless link

Optionally, the process of acquiring, by the wireless transceiver, an auxiliary cell frequency point selected by the target service node to which the auxiliary cell belongs for the user equipment, and corresponding uplink random access physical resource block resources includes:

Optionally, the secondary cell resource request message sent by the wireless transceiver further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

Optionally, the secondary cell resource request acknowledgement message received by the wireless transceiver includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the base station further comprises:

Optionally, in the above embodiment, if the secondary cell resource request acknowledgement message received by the wireless transceiver includes: the target service node distributes a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the auxiliary cell frequency points are arranged, the auxiliary cell frequency points are arranged according to priorities, and the base station further comprises:

Optionally, the acquiring, by the wireless transceiver, an auxiliary cell frequency point selected by a target service node to which the auxiliary cell belongs for the user equipment, and a corresponding uplink random access physical resource block resource specifically include:

Optionally, the secondary cell resource requirement message sent by the wireless transceiver further includes: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

Optionally, the secondary cell resource requirement acknowledgement message received by the wireless transceiver includes: the target service node selects a plurality of auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point in the plurality of auxiliary cell frequency points, and the plurality of auxiliary cell frequency points are ordered according to priority, the base station further comprises:

Optionally, in the above embodiment, if the resource demand response message received by the wireless transceiver includes: the target service node distributes a plurality of auxiliary cell frequency points for the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point in the auxiliary cell frequency points are arranged, the auxiliary cell frequency points are arranged according to priorities, and the base station further comprises:

Accordingly, an embodiment of the present invention further provides a user equipment, where the user equipment includes: a transceiver for transmitting a radio resource management measurement report to a source serving node to which a primary cell belongs; receiving an auxiliary cell frequency point selected for user equipment by a target service node to which an auxiliary cell belongs and sent by the source service node, and corresponding uplink random access physical resource block resources; and initiating random access on the auxiliary cell according to the frequency point of the auxiliary cell and the corresponding uplink random access physical resource block resource, and establishing a wireless link.

Optionally, the receiving, by the transceiver, an auxiliary cell frequency point selected for the user equipment by a target service node to which an auxiliary cell belongs and sent by the source service node, and a corresponding uplink random access physical resource block resource include:

the transceiver receives secondary cell configuration information sent by the source serving node, where the secondary cell configuration information includes: and the target service node is an auxiliary cell frequency point selected by the user equipment and a corresponding uplink random access physical resource block resource.

Correspondingly, another base station is further provided in an embodiment of the present invention, where the base station includes: the wireless transceiver is configured to receive a secondary cell resource request message sent by a mobility management entity or a source serving node to which a primary cell belongs, where the secondary cell resource request message includes: a source service node to which the main cell belongs selects an auxiliary cell frequency point list suitable for the user equipment supporting carrier aggregation for a target service node to which the auxiliary cell belongs; or, the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; the processor is used for selecting one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list according to the load and service conditions of a plurality of self frequency points and selecting uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or one or more auxiliary cell frequency points distributed for the user equipment and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point according to the load and service conditions of a plurality of self frequency points;

Optionally, the processor is further configured to select a plurality of secondary cell frequency points from the secondary cell frequency point list for the user equipment according to the load and service conditions of the plurality of frequency points of the processor and according to the priority ranking of the user service quality.

Correspondingly, an embodiment of the present invention further provides a mobility management entity, where the mobility management entity includes: a wireless transceiver, configured to receive an auxiliary cell resource demand message sent by a source service node to which a primary cell belongs, where the auxiliary cell resource demand message includes: the PCI of a target service node to which an auxiliary cell belongs, and an auxiliary cell frequency point list which is selected by the source service node for the target service node and is suitable for user equipment supporting carrier aggregation; or, the PCI of a target service node to which the auxiliary cell belongs and the source service node request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; sending the auxiliary cell resource request message to the target service node according to the PCI of the target service node; the secondary cell resource request message includes: the source service node selects an auxiliary cell frequency point list suitable for the user equipment for the target service node; or, the source service node requests the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment; and receiving a secondary cell resource request acknowledgement message sent by the target serving node, wherein the secondary cell resource request acknowledgement message includes: the target service node selects one or more auxiliary cell frequency points for the user equipment from the auxiliary cell frequency point list and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or the target service node allocates one or more auxiliary cell frequency points to the user equipment, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; and a secondary cell resource demand acknowledgement message sent to the source serving node, the secondary cell resource demand acknowledgement message including: the PCI of the target service node, one or more auxiliary cell frequency points and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point; or, the PCI of the target service node, one or more auxiliary cell frequency points allocated by the target service node for the user equipment, and an uplink random access physical resource block resource corresponding to each auxiliary cell frequency point; so as to control the user equipment to initiate random access on the secondary cell and establish a radio link.

Optionally, the secondary cell resource requirement message sent by the wireless transceiver further includes: the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality; and the transmitted secondary cell resource request message further comprises: and the auxiliary cell frequency points in the auxiliary cell frequency point list are information which is ordered according to the priority of the user service quality.

Optionally, the secondary cell resource request acknowledgement message received by the wireless transceiver further includes: and the plurality of auxiliary cell frequency points selected for the user equipment are information which is sorted according to the priority of the user service quality.

To facilitate understanding by those skilled in the art, the following description will be given by way of specific examples.

Referring to fig. 9, fig. 9 is a flowchart of a first application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention. In this embodiment, assuming that there is a connection with X2 port between the source enb (Pcell) and the target enb (scell), the user equipment supporting carrier aggregation communicates with the secondary cell (Pcell) through RRC signaling. In this embodiment, the UE is a UE supporting carrier aggregation, the source serving node is a serving node to which the primary cell belongs, and the target serving node is a serving node to which the secondary cell belongs, and the method specifically includes:

step 901: the user equipment supporting carrier aggregation sends a measurement report related to RRM to a source serving node to which a primary cell belongs (in this embodiment, taking eNB1 to which a primary cell Pcell belongs as an example);

the measurement report related to RRM is RRM measurement of the user equipment at each frequency point and each node.

Wherein the content in the measurement report may include RSRP measurement results, RSRQ measurement results, or other measurement results. The present embodiment takes RSRP measurement results as an example, and the reporting form is as follows, but not limited thereto:

for F1 frequency point: the RSRP measurement result of cell i1 is RSRP1_ i1, and the RSRP measurement result of cell j1 is RSRP1_ j1 …;

for F2 frequency point: the RSRP measurement result of cell i2 is RSRP2_ i2, and the RSRP measurement result of cell j2 is RSRP2_ j2 …;

…

for Fx frequency bins: the RSRP measurement result of the cell ix is RSRPx _ ix, and the RSRP measurement result of the cell jx is RSRPx _ jx ….

Step 902: the source serving node (e.g., eNB1 belonging to the primary cell) sends a secondary cell (Scell) resource request message to the target serving node (e.g., eNB2 belonging to the secondary cell) based on the RRM measurement report.

The secondary cell resource request message includes: the eNB1 belonging to the primary cell selects an Scell frequency point list suitable for the user equipment supporting carrier aggregation for the eNB2 belonging to the secondary cell, and optionally, the frequency points (secondary cell frequency points) in the Scell frequency point list are sorted according to the priority of the user service quality, and may be sorted from high to low or sorted from low to high.

The Scell frequency point list may also be referred to as a "Scell frequency point priority list," and may be in the form of: { frequency point i, frequency point j, …, frequency point k, … }, which may be denoted by { Fi, Fj, … Fk, … }, where the priority satisfies: frequency bin i > frequency bin j > … frequency bin k …. However, the present invention is not limited to this, and other forms are also possible, and the present embodiment is not limited to this.

Step 903: after receiving the Scell Resource request message, the target serving node selects a most appropriate frequency point and an uplink random access Physical Resource Block (PRB) Resource of the frequency point for the ue supporting carrier aggregation according to a load condition and a service condition of multiple frequency points of the target serving node and a priority ordering condition given by the primary cell (in this example, the target serving node includes priority ordering information).

Step 904: the target service node sends a source service node through a Scell resource request confirmation message, wherein the Scell resource request confirmation message comprises the most appropriate frequency point and uplink PRB resources;

in this embodiment, the most suitable frequency point and uplink PRB resource, and the target serving node (secondary cell) may send the Scell resource request acknowledgement message to the source serving node (primary cell), but the present embodiment is not limited to the Scell resource request acknowledgement message, and may also use other messages.

In this embodiment, the sending form of the Scell resource request acknowledgement message may be: { frequency point m, uplink random access physical resource block information m }, which may be denoted by { Fm, UL RACH PRB information m }.

Step 905: the source service node sends the Scell configuration information to the user equipment supporting carrier aggregation through an RRC connection reconfiguration message; the Scell configuration information includes: the physical cell identification PCI, the frequency point and the uplink random access physical resource block.

That is to say, after the source serving node receives the Scell resource request acknowledgement message sent by the target serving node, that is, it indicates that the user equipment supporting carrier aggregation completes the Scell resource request, the source serving node informs the corresponding Scell configuration information to the user equipment supporting carrier aggregation through an RRC connection reconfiguration message (but not limited to the message, this embodiment takes as an example), where the RRC connection reconfiguration message includes the Scell configuration information and the uplink PRB resource.

Wherein, the Scell configuration information includes: { physical cell identity, PCI, frequency point, m, uplink random access physical resource block information, m }, which may be denoted by a symbol { PCI, Fm, UL RACH PRB information, m }.

Step 906: after receiving Scell configuration information sent by a source service node, the user equipment initiates a random access request on an auxiliary cell based on the frequency point and the uplink PRB resource, and completes the establishment of a wireless link of the Scell;

that is, the user equipment completes access control under the inter-eNB.

Of course, in another embodiment, this embodiment differs from the embodiment described above with respect to fig. 9 in that: the secondary cell (Scell) resource request message includes: and the source service node of the main cell requests a target service node of the auxiliary cell to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment. After receiving the auxiliary cell resource request message, the target service node allocates an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource to the user equipment according to the service and load condition of the target service node, wherein the auxiliary cell resource request confirmation message sent by the target service node to the source service node comprises: the target service node is an auxiliary cell frequency point distributed by the user equipment and a corresponding uplink random access physical resource block resource. A source service node sends an auxiliary cell frequency point allocated to the user equipment by a target service node and a corresponding uplink random access physical resource block resource to the user equipment through an RRC connection reconfiguration message, and the user equipment initiates a random access request on an auxiliary cell based on the auxiliary cell frequency point and the uplink PRB resource and completes the establishment of a wireless link of the Scell;

referring to fig. 10, fig. 10 is a flowchart of a second application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention; the second application instance differs from the first application instance in that: the target service node (the service node to which the auxiliary cell belongs) is sent to the source service node (the service node to which the main cell belongs) as a plurality of appropriate frequency points and uplink PRB resources corresponding to the frequency points, and the frequency points are correspondingly ordered according to the frequency point priority scheduled by the source service node. In this embodiment, the communication between the source service node and the target service node is still performed through an X2 interface, and the specific process includes:

step 1001: the UE supporting carrier aggregation sends an RRM-related measurement report to a source serving node to which the primary cell belongs (i.e. taking eNB1 to which the primary cell belongs as an example);

the content and the transmission form in the measurement report are detailed in the first application example, and are not described herein again.

Step 1002: the source serving node (eNB 1 belonging to the primary cell) sends a Scell resource request message to the target serving node (e.g., eNB2 belonging to the secondary cell).

The content included in the Scell resource request message and the form of the Scell frequency point list are specifically detailed in the first application example, and are not described herein again.

Step 1003: after receiving the Scell resource request message, the target service node performs corresponding sequencing for a plurality of suitable frequency points and uplink PRB resources corresponding to each frequency point for the user equipment supporting carrier aggregation according to the load conditions and service conditions of the multiple frequency points of the target service node itself and the priority sequencing conditions given by the primary cell, and according to the frequency point priority scheduled by the source service node (primary cell).

Step 1004: the target service node sends the plurality of suitable frequency points selected for the user equipment and the uplink PRB resources corresponding to the frequency points to the source service node through the Scell resource request confirmation message;

in this step, the plurality of suitable frequency points and the uplink PRB resources corresponding to each frequency point may request an acknowledgement message through the Scell resource, but the present embodiment is not limited thereto, and may also send the acknowledgement message through other messages.

The sending form of the Scell resource request acknowledgement message is as follows: { (frequency point i, uplink random access physical resource block information i), (frequency point j, uplink random access physical resource block information j), …, (frequency point k, uplink random access physical resource block information k), … }, where the available symbols are { (Fi, UL RACH PRB information i), (Fj, UL RACH PRB information j), … (Fk, UL RACH PRB information k), … }.

Step 1005: the source service node selects a most appropriate frequency point and a corresponding uplink random access physical resource block from the plurality of appropriate frequency points according to the service in the cell and the load condition of each frequency point;

that is to say, after receiving the Scell resource request acknowledgement message from the target serving node, the source serving node indicates that the Scell resource request is completed for the user equipment supporting carrier aggregation, and in the Scell resource request acknowledgement message, the source serving node selects an optimal frequency point and corresponding uplink random access physical resource block information according to the service in the cell and the load condition of each frequency point; generally, the source serving node is most likely to select the frequency point with the highest priority and the corresponding PRB information.

Step 1006: the source service node sends the corresponding selected Scell frequency point and the corresponding uplink PRB resource to the user equipment supporting carrier aggregation through an RRC connection reconfiguration message; the Scell frequency point and the corresponding uplink PRB resource are referred to as Scell configuration information.

The information contained in the Scell configuration information includes: { physical cell identity, frequency point m, uplink random access physical resource block information }, which may be denoted by a symbol { PCI, Fm, UL RACH PRB information }. But is not limited thereto.

Step 1007: and after receiving the Scell configuration information sent by the source service node, the user equipment makes a random access request on the auxiliary cell based on the configured frequency point information and the uplink PRB resource, and completes the establishment of a wireless link of the Scell.

That is, the user equipment completes access control under the inter-eNB.

Referring to fig. 11, fig. 11 is a flowchart of a third application example of a method for controlling carrier aggregation access between base stations according to an embodiment of the present invention. In this embodiment, there is no connection of X2 between the source serving node to which the primary cell belongs and the target serving node to which the secondary cell belongs, and therefore, communication cannot be performed through X2, the source serving node and the target serving node only communicate through S1 between Mobility Management Entities (MMEs), and the user equipment supporting carrier aggregation communicates with the Pcell through RRC signaling. The specific process comprises the following steps:

step 1101: the user equipment supporting carrier aggregation sends the RRM-related measurement report to the source serving node to which the primary cell belongs (taking the eNB1 to which the primary cell belongs as an example);

the contents of the RRM related measurement report and the transmission form thereof are the same as the above application examples, and are not described herein again.

Step 1102: the source serving node sends a Scell Resource Required message (Scell Resource Required) to the mobility management entity MME.

The Scell resource demand message includes: the source serving node selects an Scell frequency point list suitable for the user equipment supporting carrier aggregation for the target serving node to which the secondary cell belongs, wherein frequency points in the Scell frequency point list are sorted from high to low (taking this as an example) according to the priority of user service quality.

The Scell frequency point list may be referred to as a "Scell frequency point priority list," and may be in the form of: { frequency point i, frequency point j, …, frequency point k, … }, which may be denoted by { Fi, Fj, … Fk, … }, where the priority satisfies: frequency bin i > frequency bin j > … frequency bin k ….

In another embodiment, the Scell resource requirement message includes: and the PCI of the target service node and a source service node of the main cell request the target service node to allocate an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource for the user equipment.

Step 1103: after receiving the Scell Resource demand message sent by the source service node, the MME sends a Scell Resource Request message (Scell Resource Request) to the target service node based on the PCI of the target service node, where the message is basically a Scell Resource requested message forwarded from the source node.

The Scell resource request message includes: and the source service node selects an Scell frequency point list suitable for the user equipment supporting carrier aggregation for the target service node, wherein the frequency points in the list are ordered from high to low according to the priority of the user service quality.

This list, which may be referred to as a "Scell frequency point priority list," may be in the form of: { frequency point i, frequency point j, …, frequency point k, … }, which may be denoted by { Fi, Fj, … Fk, … }, where the priority satisfies: frequency bin i > frequency bin j > … frequency bin k ….

In another embodiment, the Scell resource request message includes: the PCI of a target service node, one or more auxiliary cell frequency points which are required to be allocated to the user equipment by the target service node, and uplink random access physical resource block resources corresponding to each auxiliary cell frequency point.

Step 1104: after receiving the Scell resource request message, the target service node selects a most appropriate frequency point and corresponding uplink PRB resource for the user equipment supporting carrier aggregation according to the load conditions and service conditions of multiple frequency points of the target service node and the priority ordering condition given by the main cell.

In another embodiment, the target service node directly allocates an auxiliary cell frequency point and a corresponding uplink random access physical resource block resource to the user equipment according to the load condition and the service condition of multiple frequency points of the target service node.

Step 1105: and the target service node sends the most appropriate frequency point and the corresponding uplink PRB resource to the MME through the Scell resource request confirmation message.

Wherein, the sending form of the Scell resource request acknowledgement message is as follows: { frequency point m, uplink random access physical resource block information m }, which may be denoted by { Fm, UL RACH PRB information m }.

In another embodiment, the Scell resource request confirm message includes: and the target service node is an auxiliary cell frequency point distributed by the user equipment and a corresponding uplink random access physical resource block resource.

Step 1106: after receiving the Scell resource request confirmation message sent by the target service node, the MME sends a Scell resource demand confirmation message to the source service node, wherein the message is mainly used for forwarding the content of the Scell resource request confirmation message.

The Scell resource requirement acknowledgement message includes: PCI of the target service node, the most appropriate frequency point and the corresponding uplink random access physical resource block.

The sending form of the Scell resource requirement confirmation message is as follows: { target serving node PCI, frequency point m, uplink random access physical resource block information m }, which may be denoted by a symbol { PCI, Fm, UL RACH PRB information m }.

Step 1107: after the source serving node receives the Scell resource demand confirmation message of the MME, that means that the Scell resource request is completed for the user equipment supporting carrier aggregation, the source serving node informs the corresponding Scell configuration information to the user equipment supporting carrier aggregation through an RRC connection reconfiguration message, where the message includes the Scell frequency point information and the PRB resource sent in uplink.

The configuration information includes information such as: { physical cell identity, frequency point m, uplink random access physical resource block information m }, which may be denoted by a symbol { PCI, Fm, UL RACH PRB information m }.

In another embodiment, the Scell resource requirement acknowledgement message includes: the physical cell identification, an auxiliary cell frequency point distributed for the user equipment and a corresponding uplink random access physical resource block resource.

Step 1108: after receiving the Scell configuration information of a source service node (primary cell), the user equipment makes a random access request on the secondary cell based on the configured frequency point information and the uplink PRB resource, and completes the establishment of a wireless link of the Scell, thereby completing the access control under the inter-eNB.

Referring to fig. 12, fig. 12 is a flowchart of a fourth application example of a method for controlling carrier aggregation access between base stations according to the present invention, where the fourth application example is different from the third application example in that: in step 1104, in step 1105, the MME feeds back to the source serving node to which the primary cell belongs, a plurality of suitable frequency points and uplink transmission PRB resources corresponding to each frequency point, and performs corresponding sorting according to the frequency point priority scheduled by the source serving node (primary cell). The specific process comprises the following steps:

step 1201: the user equipment UE supporting carrier aggregation sends an RRM-related measurement report to the source serving node (taking the eNB1 to which the primary cell belongs as an example);

the contents and transmission form of the RRM-related measurement report are as described in the third application, and are not described herein again.

Step 1202: and the source service node sends a Scell resource demand message to a Mobile Management Entity (MME).

The content of the Scell resource requirement message is as described in the third application, and is not described herein again.

Step 1203: after receiving the Scell Resource demand message from the source serving node (primary cell), the MME sends a Scell Resource request message to the target serving node based on the PCI of the target serving node, where the message is basically a Scell Resource Required message forwarded from the source node.

The content of the Scell resource request message is as described in the third application, and is not described herein again.

Step 1204: after receiving the Scell resource request message from the MME, the target service node provides a plurality of appropriate frequency point lists and uplink PRB resources corresponding to each frequency point for the user equipment supporting carrier aggregation according to the load conditions and service conditions of a plurality of frequency points of the target service node and the priority ordering conditions given by the main cell, and performs corresponding ordering according to the frequency point priority ordered by the source service node.

Step 1205: and the target service node sends a plurality of suitable frequency points selected for the user equipment and uplink PRB resources corresponding to the frequency points to the MME through the Scell resource request confirmation message.

Step 1206: after receiving the Scell resource request confirmation message from the target service node, the MME sends a Scell resource demand confirmation message to the source service node, wherein the message is mainly used for forwarding the content of the Scell resource request confirmation message.

The sending form of the Scell resource requirement confirmation message is as follows: { (frequency point i, uplink random access physical resource block information i), (frequency point j, uplink random access physical resource block information j), …, (frequency point k, uplink random access physical resource block information k), … }, where the available symbols are { (Fi, UL RACH PRB information i), (Fj, UL RACH PRB information j), … (Fk, UL RACH PRB information k), … }.

Step 1207: the source service node selects a most appropriate frequency point and corresponding uplink random access physical resource block information in the Scell resource request confirmation message according to the service in the cell and the load condition of each frequency point;

that is to say, after receiving the Scell resource requirement acknowledgement message sent by the MME, the source serving node indicates that the Scell resource request is completed for the user equipment supporting carrier aggregation, and in the Scell resource request acknowledgement message, the source serving node (primary cell) selects a most appropriate frequency point and corresponding uplink random access physical resource block information according to the service in the cell and the load condition of each frequency point, and generally, the source serving node (primary cell) is most likely to select the frequency point with the highest priority and corresponding PRB information.

Step 1208: and the source service node sends the corresponding Scell configuration information to the user equipment supporting carrier aggregation through an RRC connection reconfiguration message, wherein the message comprises the Scell frequency point information and the PRB resource sent in an uplink.

The information contained in the Scell configuration information includes: { physical cell identity, frequency point m, uplink random access physical resource block information m }, which may be denoted by a symbol { PCI, Fm, UL RACH PRB information m }.

Step 1209: after receiving the Scell configuration information sent by the source service node, the user equipment makes a random access request on the auxiliary cell based on the configured frequency point information and the uplink PRB resource, and completes the establishment of a wireless link of the Scell, thereby completing the access control under the inter-eNB.

The technical scheme of the method and the device for controlling the carrier aggregation access between the base stations is different from the carrier aggregation access control under intra-eNB, and the random access success rate of the carrier aggregation users on the Scell under the condition of the inter-eNB can be effectively improved through the interaction of the related frequency points and the uplink PRB resources between the inter-eNB, and the throughput performance of the network is further improved.

The embodiments of the present invention may be applied to a CoMP communication system, where the communication system includes a plurality of access points or transmission points connected to each other, such as base stations, where the base stations may be Macro base stations (Macro enbs, or enbs), or micro base stations (Pico base stations, Relay, HeNB, HNB, RRH), and the like, and the embodiments are not limited herein, and in short, a station or a transmission point.

In the embodiment of the present invention, the UE may be any one of the following, and may be static or mobile, where the static UE may specifically include a terminal (terminal), a mobile station (mobile station), a subscriber unit (subscriber unit), or a station (station), and the mobile UE may specifically include a cellular phone (cellular phone), a Personal Digital Assistant (PDA), a wireless modem (modem), a wireless communication device, a handheld device (handset), a laptop computer (laptop computer), a cordless phone (cordless phone), or a Wireless Local Loop (WLL) station, and the UE may be distributed in the entire wireless network.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Claims

1. A method for controlling carrier aggregation access between base stations is characterized by comprising the following steps:

a first service node receives a radio resource management measurement report from user equipment supporting inter-base station carrier aggregation through a primary cell;

the first service node sends an auxiliary cell frequency point list which is selected by the first service node and is suitable for the user equipment to a second service node according to the radio resource management measurement report, wherein the auxiliary cell frequency point list comprises frequency points which respectively correspond to one or more cells provided by the second service node;

the first service node receives one auxiliary cell frequency point in the auxiliary cell frequency point list and corresponding uplink random access physical resource block resources from the second service node;

and the first service node sends the user equipment by the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource through the main cell.

2. The method of claim 1, wherein the ue simultaneously maintains radio resource connection with the first serving node and the second serving node through the primary cell and the secondary cell corresponding to the one secondary cell frequency point.

3. The method according to claim 1 or 2, wherein the sending, by the first serving node, the secondary cell frequency point list to the second serving node comprises:

the first service node sends an auxiliary cell resource request message to the second service node, wherein the auxiliary cell resource request message comprises the auxiliary cell frequency point list; and, the first service node receiving, from the second service node, an auxiliary cell frequency point in the auxiliary cell frequency point list and a corresponding uplink random access physical resource block resource, including:

and the first service node receives an auxiliary cell resource request confirmation message from the second service node, wherein the auxiliary cell resource request confirmation message comprises an auxiliary cell frequency point in the auxiliary cell frequency point list and a corresponding uplink random access physical resource block resource.

4. The method of claim 3, wherein the secondary cell resource request message further comprises: and indicating that the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality.

5. The method according to claim 1 or 2, wherein the sending, by the first serving node, the secondary cell frequency point list to the second serving node comprises:

the first service node sends the auxiliary cell frequency point list to the second service node through a mobile management entity; and is

The receiving, by the first serving node, the one secondary cell frequency point in the secondary cell frequency point list from the second serving node includes:

and the first service node receives the one auxiliary cell frequency point in the auxiliary cell frequency point list from the second service node through the mobile management entity.

6. The method according to claim 5, wherein the secondary cell frequency point list is carried in a secondary cell resource demand message sent by the first serving node to the mobility management entity, and the one secondary cell frequency point in the secondary cell frequency point list is carried in a secondary cell resource demand acknowledgement message received by the first serving node from the mobility management entity.

7. The method of claim 6, wherein the secondary cell resource requirement message further comprises: and indicating that the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality.

8. The method of claim 1, wherein the first serving node or the second serving node comprises an evolved base station or a low power node.

9. A method for controlling carrier aggregation access between base stations is characterized by comprising the following steps:

a second service node receives an auxiliary cell frequency point list which is selected by a first service node and is suitable for user equipment from the first service node, wherein the auxiliary cell frequency point list comprises frequency points respectively corresponding to one or more cells provided by the second service node;

the second service node sends one auxiliary cell frequency point in the auxiliary cell frequency point list and a corresponding uplink random access physical resource block resource to the first service node;

the first service node provides a main cell for user equipment, and the second service node provides an auxiliary cell for the user equipment through the auxiliary cell frequency point.

10. The method of claim 9, wherein the UE simultaneously maintains a radio resource connection with the first serving node and the second serving node via the primary cell and the secondary cell.

11. The method according to claim 9 or 10, wherein the second serving node receiving the secondary cell frequency point list from the first serving node comprises:

the second service node receives an auxiliary cell resource request message from the first service node, wherein the auxiliary cell resource request message comprises the auxiliary cell frequency point list; and the second service node sends one auxiliary cell frequency point in the auxiliary cell frequency point list and the corresponding uplink random access physical resource block resource to the first service node, including:

and the second service node sends an auxiliary cell resource request confirmation message to the first service node, wherein the auxiliary cell resource request confirmation message comprises an auxiliary cell frequency point in the auxiliary cell frequency point list and a corresponding uplink random access physical resource block resource.

12. The method of claim 11, wherein the secondary cell resource request message further comprises: and indicating that the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality.

13. The method according to claim 9 or 10, wherein the second serving node receiving the secondary cell frequency point list from the first serving node comprises: the second service node receives the auxiliary cell frequency point list from the first service node through a mobile management entity;

the second service node sends one auxiliary cell frequency point in the auxiliary cell frequency point list and a corresponding uplink random access physical resource block resource to the first service node, and the method comprises the following steps: and the second service node sends one auxiliary cell frequency point in the auxiliary cell frequency point list and the corresponding uplink random access physical resource block resource to the first service node through the mobile management entity.

14. The method according to claim 13, wherein the secondary cell frequency point list is carried in a secondary cell resource request message received by the second serving node from the mobility management entity, and wherein the one secondary cell frequency point in the secondary cell frequency point list is carried in a secondary cell resource request acknowledgement message sent by the second serving node to the mobility management entity.

15. The method of claim 14, wherein the secondary cell resource request message further comprises: and indicating that the auxiliary cell frequency points in the auxiliary cell frequency point list are information sorted according to the priority of the user service quality.

16. The method of claim 9, wherein the first serving node or the second serving node comprises: an evolved base station or a low power node.

17. An access method, comprising:

the user equipment sends a radio resource management measurement report to a first service node through a main cell;

the user equipment receives an auxiliary cell frequency point of a second service node and corresponding uplink random access physical resource block resources from the first service node;

the user equipment initiates random access on an auxiliary cell corresponding to the auxiliary cell frequency point according to the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource, and establishes a wireless link;

wherein the user equipment simultaneously maintains radio resource connection with the first serving node and the second serving node through the primary cell and the secondary cell.

18. The method of claim 17, wherein the receiving, by the ue, the secondary cell frequency point and the corresponding uplink random access physical resource block resource from the first serving node comprises:

the user equipment receives secondary cell configuration information from the first serving node, the secondary cell configuration information including: and the auxiliary cell frequency point and the corresponding uplink random access physical resource block resource.

19. The method of claim 17 or 18, wherein the first serving node or the second serving node comprises an evolved base station or a low power node.

20. A communication apparatus, characterized by a processing element and a memory element, wherein the memory element is adapted to store a program for performing the method according to any of claims 1 to 8 when the program is invoked by the processing element.

21. A communication apparatus, characterized by a processing element and a memory element, wherein the memory element is adapted to store a program for performing the method according to any of claims 9 to 16 when the program is invoked by the processing element.

22. A communication apparatus comprising a processing element and a memory element, wherein the memory element is configured to store a program for performing the method of any one of claims 17 to 19 when the program is invoked by the processing element.

23. A computer storage medium storing a program or instructions for implementing the method of any one of claims 1 to 19.