CN107666727B - Method, device and system for capability negotiation - Google Patents

Abstract

The invention provides a method, a device and a system for capability negotiation, wherein the method comprises the following steps: the method comprises the steps that a main service base station (MeNB) sends capability information of UE under the control of the MeNB and second auxiliary cell group configuration of other SeNB except a first SeNB in base stations connected with the MeNB to a first auxiliary service base station (SeNB); the MeNB receives a first auxiliary cell group configuration of the first SeNB, wherein the first auxiliary cell group configuration is obtained at least according to the capability information of the UE and the second auxiliary cell group configuration; and the MeNB uses the first secondary cell group configuration and the second secondary cell group configuration to perform RRC connection reconfiguration on the UE. The invention solves the problem that the capability negotiation can not be carried out under the scene that the UE is connected with more than two base stations in the related technology.

Description

Method, device and system for capability negotiation

technical field

The present invention relates to the communication field, in particular, to a capability negotiation method, device and system.

Background technique

FIG. 1 is a schematic diagram of a dual connectivity (DC) network architecture in the related art of the present invention. For each UE (User equipment, user equipment), on the control plane, MeNB (Master eNB, main serving base station, generally refers to macro base station node) is connected to MME (Mobility Management Entity, mobile management entity) through S1-MME , MeNB and SeNB (Secondary eNB, auxiliary serving base station, generally refers to micro base station or low power node) are connected through X2-C. On the user plane, for MCG bearer (Master cell group bearer, main cell group bearer), MeNB is connected to S-GW (Serving Gateway, Serving Gateway) through S1-U, and SeNB does not participate in data transmission on the user plane. For split bearer (split bearer), MeNB is connected to S-GW through S1-U, and MeNB is connected to SeNB through X2-U. For SCGbearer (Secondary cell group bearer, secondary cell group bearer), the SeNB is connected to the S-GW through S1-U, and the MeNB does not participate in data transmission on the user plane.

In dual connectivity, since UE needs to transmit data with MeNB and SeNB at the same time, MeNB and SeNB need to negotiate UE capabilities to ensure that MeNB's configuration for UE plus SeNB's configuration for UE will not exceed the upper limit of UE's capabilities. In the prior art, the MeNB and the SeNB need to exchange and understand each other's configuration information for the UE, and then adjust their own configuration information for the UE according to the latest configuration information of the other party, so as to avoid the total configuration exceeding the upper limit of the UE's capability.

In related technologies, Rel-12 proposes dual connectivity, which involves negotiation of UE capabilities between two base stations at most. A more common scenario is that the UE is connected to more than two base stations at the same time, for example, the UE is connected to MeNB and multiple SeNBs at the same time, or, in order to achieve smooth handover or bearer transfer, the UE is in handover while maintaining the connection with the source base station and the connection to the target base station, or during the change of the secondary base station, maintain the connection with the source secondary base station and the target secondary base station at the same time, or maintain the connection with the source primary base station, source secondary base station, target primary base station and target secondary base station at the same time during dual connectivity handover The connection of the secondary base station.

In the prior art, the issue of how to implement capability negotiation of the UE between base stations in the above scenario is not considered. If the dual-connection negotiation method is still adopted, it is easy to cause the base station to configure the UE to exceed the upper limit of the UE's capability, or not to fully utilize the UE's capability.

Aiming at the above-mentioned problems existing in related technologies, no effective solution has been found yet.

Contents of the invention

Embodiments of the present invention provide a capability negotiation method, device, and system to at least solve the problem in the related art that capability negotiation cannot be performed in a scenario where a UE is connected to more than two base stations.

According to an embodiment of the present invention, a method for capability negotiation is provided, including: the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the information of the UEs connected to the MeNB The second secondary cell group configuration of SeNBs other than the first SeNB; the MeNB receives its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is at least according to The capability information of the UE and the second secondary cell group configuration are obtained; the MeNB uses the first secondary cell group configuration and the second secondary cell group configuration to perform RRC connection reconfiguration on the UE.

Optionally, when the first SeNB is the SeNB to be accessed, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and all base stations connected to the MeNB except The second secondary cell group configuration of other SeNBs other than the first SeNB includes: the MeNB sending a SeNB addition request message to the first SeNB, wherein the addition request message carries the capability information of the UE and the second secondary cell group configuration. group configuration.

Optionally, after the MeNB sends the SeNB addition request message to the first SeNB, the method further includes: after the MeNB receives the SeNB addition request response message replied by the first SeNB, send the message to the other SeNBs Sending a SeNB modification request message, wherein the addition request response message carries the configuration of the first secondary cell group and the capability information of the UE, and the SeNB modification request message carries the configuration of the first secondary cell group and the capability information of the UE.

Optionally, when the capability information of the UE changes, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the base stations connected to the MeNB except the first The second secondary cell group configuration of other SeNBs other than the SeNB includes: the MeNB sends a first SeNB modification request message and a second SeNB modification request message to the first SeNB and the other SeNBs, wherein the first SeNB modifies The request message carries the capability information of the UE and the configuration of the second secondary cell group, and the second SeNB modification request message carries the capability information of the UE and the configuration of the first secondary cell group.

Optionally, the receiving by the MeNB of its own first secondary cell group configuration replied by the first SeNB includes: the MeNB receiving a SeNB modification request response message replied by the first SeNB, wherein the SeNB modification request response message The message carries the updated first secondary cell group configuration of the first SeNB.

Optionally, when the configuration of the first secondary cell group of the first SeNB changes, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the UE connected to the MeNB. The second secondary cell group configuration of SeNBs other than the first SeNB in the base station includes: sending a SeNB modification request message to the first SeNB after the MeNB receives the SeNB modification request message sent by the other SeNB, wherein the The SeNB modification request message carries the configuration of the second secondary cell group, and the SeNB modification request message carries the capability information of the UE and the configuration of the second secondary cell group.

Optionally, the MeNB receiving its own first secondary cell group configuration from the first SeNB includes: the MeNB receiving a modification request response message from the first SeNB, wherein the modification request response message carries The updated configuration of the first secondary cell group.

Optionally, when a context transfer occurs between SeNBs, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the information of all base stations connected to the MeNB except the first SeNB The second secondary cell group configuration of other SeNBs includes: the MeNB sends a SeNB addition request message to the first SeNB, wherein the SeNB addition request message carries UE capability information and second secondary cell group configuration.

Optionally, the receiving by the MeNB of its own first secondary cell group configuration from the first SeNB includes: the MeNB receiving an add request response message from the first SeNB, where the add request response message carries the first secondary cell group configuration. A secondary cell group configuration.

According to an embodiment of the present invention, another capability negotiation method is provided, including: the source primary serving base station MeNB sends the target MeNB the capability information of the UE under the jurisdiction of the source MeNB, the source primary cell group of the source MeNB Configuration and source secondary cell group configuration of one or more source secondary serving base stations SeNB connected to the source MeNB; the source MeNB receives its own target primary cell group configuration replied by the target MeNB and connects to the target MeNB The target secondary cell group configuration of one or more target SeNBs, wherein the target primary cell group configuration and target secondary cell group configuration are at least based on the capability information of the UE, the source primary cell group configuration and the source secondary cell group configuration The cell group configuration is obtained; the source MeNB uses the source primary cell group configuration, the source secondary cell group configuration, the target primary cell group configuration, and the target secondary cell group configuration to perform RRC connection reconnection on the UE configuration.

Optionally, the source primary serving base station MeNB sends the target MeNB the capability information of the UE under the jurisdiction of the source MeNB, the configuration of the source primary cell group of the source MeNB, and one or more source secondary service cells connected to the source MeNB. The source secondary cell group configuration of the base station SeNB includes: the source MeNB sends a handover request message to the target MeNB, wherein the handover request message carries UE capability information, source primary cell group configuration, and source secondary cell group configuration.

Optionally, the receiving by the source MeNB of its own target primary cell group configuration and target secondary cell group configurations of one or more target SeNBs connected to the target MeNB from the target MeNB includes: the source MeNB receiving the The addition request response message replied by the target MeNB, wherein the addition request response message carries the target primary cell group configuration and one or more target secondary cell group configurations.

According to another embodiment of the present invention, there is provided a device for capability negotiation, which is applied in the primary serving base station MeNB, including: a sending module, configured to send the capability of the UE under the jurisdiction of the MeNB to the first secondary serving base station SeNB Information and second secondary cell group configurations of SeNBs other than the first SeNB in the base station connected to the MeNB; a receiving module, configured to receive the first secondary cell group configuration of itself replied by the first SeNB, Wherein, the configuration of the first secondary cell group is obtained at least according to the capability information of the UE and the configuration of the second secondary cell group; a configuration module is configured to use the configuration of the first secondary cell group and the configuration of the second secondary cell The group configuration performs RRC connection reconfiguration on the UE.

Optionally, when the first SeNB is a SeNB to be accessed, the sending module includes:

A sending unit, configured to send a SeNB addition request message to the first SeNB, where the addition request message carries capability information of the UE and second secondary cell group configuration.

According to another embodiment of the present invention, a device for capability negotiation is provided, which is applied in the source main serving base station MeNB in the base station transfer scenario, including: a sending module, configured to send the target MeNB the UE capability information, source primary cell group configuration of the source MeNB, and source secondary cell group configuration of one or more source secondary serving base stations SeNB connected to the source MeNB; a receiving module, configured to receive a reply from the target MeNB The target primary cell group configuration of the target MeNB and the target secondary cell group configuration of one or more target SeNBs connected to the target MeNB, wherein the target primary cell group configuration and target secondary cell group configuration are at least based on the UE's Obtaining capability information, the configuration of the source primary cell group, and the configuration of the source secondary cell group; a configuration module configured to use the configuration of the source primary cell group, the configuration of the source secondary cell group, the configuration of the target primary cell group, and The target secondary cell group configuration is to perform RRC connection reconfiguration on the UE.

Optionally, the sending module includes:

The sending unit is configured to send a handover request message to the target MeNB, wherein the handover request message carries UE capability information, source primary cell group configuration, and source secondary cell group configuration.

According to another embodiment of the present invention, a capability negotiation system is provided, including: a primary serving base station MeNB, a plurality of secondary serving base stations SeNB, and user equipment UE. The MeNB includes: a first sending module configured to send A secondary serving base station SeNB sends the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB; the first receiving module is used for receiving its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration; the first configuration module , configured to use the first secondary cell group configuration and the second secondary cell group configuration to perform RRC connection reconfiguration on the UE; the first SeNB includes: a second receiving module, configured to perform capability information and Second secondary cell group configurations of SeNBs other than the first SeNB in the base station connected to the MeNB; a second sending module, configured to reply to the MeNB with its own first secondary cell group configuration, wherein the The configuration of the first secondary cell group is obtained at least according to the capability information of the UE and the configuration of the second secondary cell group; the UE includes: a third receiving module, configured to receive the configuration of the first secondary cell group and the configuration of the second secondary cell group Second secondary cell group configuration; a second configuration module, configured to use the first secondary cell group configuration and the second secondary cell group configuration to update the radio resource configuration.

Optionally, when the first SeNB is a SeNB to be accessed, the first sending module includes: a sending unit, configured to send a SeNB addition request message to the first SeNB, where the addition request message carries the The capability information of the UE and the configuration of the second secondary cell group.

According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is configured to store program code for performing the following steps:

Sending to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB;

receiving its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration;

performing RRC connection reconfiguration on the UE by using the first secondary cell group configuration and the second secondary cell group configuration.

Through the present invention, the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB are sent to the first secondary serving base station SeNB; The MeNB receives its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration; The MeNB performs RRC connection reconfiguration on the UE by using the first secondary cell group configuration and the second secondary cell group configuration. In the scenario where the UE is connected to multiple SeNBs, during capability negotiation with each SeNB, the cell group configurations of other SeNBs other than the MeNB’s cell lease configuration and the UE’s capability information are also sent at the same time, so the related In the technology, the problem that the capability negotiation cannot be performed in the scenario where the UE is connected to more than two base stations avoids that the base station configures the UE to exceed the upper limit of the UE capability.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a dual connection network architecture in the related art of the present invention;

FIG. 2 is a flowchart of a method for capability negotiation according to an embodiment of the present invention;

Fig. 3 is an interactive schematic diagram of the first scene in the embodiment of the present invention;

Fig. 4 is an interactive schematic diagram of the second scene in the embodiment of the present invention;

Fig. 5 is an interactive schematic diagram of the third scene in the embodiment of the present invention;

Fig. 6 is an interactive schematic diagram of the fourth scene in the embodiment of the present invention;

FIG. 7 is a flow chart of another capability negotiation method according to an embodiment of the present invention;

Fig. 8 is an interactive schematic diagram of the fifth scene in the embodiment of the present invention;

FIG. 9 is a structural block diagram of an apparatus for capability negotiation according to an embodiment of the present invention;

FIG. 10 is a structural block diagram of another device for capability negotiation according to an embodiment of the present invention;

Fig. 11 is a structural block diagram of a capability negotiation system according to an embodiment of the present invention.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

Example 1

A method for capability negotiation is provided in this embodiment. FIG. 2 is a flowchart of a method for capability negotiation according to an embodiment of the present invention. As shown in FIG. 2 , the process includes the following steps:

Step S202, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB; for example, the SeNB includes : when the first SeNB, the second SeNB, the third SeNB, and the MeNB interact with the first SeNB, send the secondary cell group configuration of the second SeNB and the secondary cell group configuration of the third SeNB. Of course, it also includes the configuration of the primary cell group of the SeNB.

Step S204, the MeNB receives its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration;

In step S206, the MeNB performs RRC connection reconfiguration on the UE by using the first secondary cell group configuration and the second secondary cell group configuration.

Through the above steps, send to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB; the MeNB receives the response from the first SeNB Its own first secondary cell group configuration, wherein the first secondary cell group configuration is obtained at least according to the UE's capability information and the second secondary cell group configuration; the MeNB uses the first secondary cell group configuration and the second secondary cell group configuration for the UE RRC connection reconfiguration. In the scenario where the UE is connected to multiple SeNBs, during capability negotiation with each SeNB, the cell group configurations of other SeNBs other than the MeNB’s cell lease configuration and the UE’s capability information are also sent at the same time, so the related In the technology, the problem that the capability negotiation cannot be performed in the scenario where the UE is connected to more than two base stations avoids that the base station configures the UE to exceed the upper limit of the UE capability.

This embodiment can be applied to different scenarios, and an example is given below:

Fig. 3 is a schematic diagram of the interaction of the first scene in the embodiment of the present invention. As shown in Fig. 3, it describes that when the UE is connected to the primary base station MeNB and the first secondary base station SeNB1 at the same time, the MeNB adds a second secondary base station for the UE In SeNB2, the flow chart of signaling related to UE capability negotiation between base stations, including:

Step 1: MeNB sends a SeNB Addition Request message (SeNB Addition Request) to SeNB2, carrying the primary cell group configuration, the first secondary cell group configuration and all capabilities of the UE.

Wherein, the configuration of the primary cell group is the configuration from the MeNB, and the configuration of the first secondary cell group is the configuration from the SeNB1.

Step 2, SeNB2 receives the SeNB addition request message from MeNB, according to the configuration of the primary cell group, the configuration of the first secondary cell group and all the capabilities of the UE carried in the message, set the configuration of the second secondary cell group, and set the configuration of the second secondary cell The group configuration is carried in the SeNB addition request response message (SeNB Addition Request Acknowledge) and replied to the MeNB.

Step 3: MeNB sends a SeNB modification request message (SeNB Modification Request) to SeNB1, carrying the primary cell group configuration, the second secondary cell group configuration and all capabilities of the UE.

Step 4, SeNB1 receives the SeNB modification request message from MeNB, updates the configuration of the first secondary cell group according to the configuration of the primary cell group, the configuration of the second secondary cell group and all the capabilities of the UE carried in the message, and sends the updated second secondary cell group configuration A secondary cell configuration is carried in the SeNB modification request response message (SeNB Modification Acknowlege) and replied to the MeNB.

Step 5: The MeNB sends an RRC Connection Reconfiguration message (RRC Connection Reconfiguation) to the UE, carrying the configuration of the primary cell group, the configuration of the first secondary cell group, and the configuration of the second secondary cell.

In step 6, the UE replies a radio resource control (Radio Resource Control, RRC for short) connection reconfiguration completion message (RRC Connection Reconfiguration) to the MeNB, indicating that the UE has enabled a new radio resource configuration.

Step 7: After receiving the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message (SeNB Reconfiguration Complete) to SeNB1, carrying the configuration of the primary cell group, the configuration of the second secondary cell group, and all capabilities of the UE, and notifies SeNB1 The reconfiguration is complete.

Step 8: After receiving the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message to SeNB2, carrying the primary cell group configuration, the first secondary cell group configuration and all capabilities of the UE, and notifies SeNB2 that the reconfiguration is complete.

Fig. 4 is a schematic diagram of the interaction of the second scenario in the embodiment of the present invention. As shown in Fig. 4, it describes the situation where the UE is connected to MeNB, SeNB1, and SeNB2 at the same time, and when MeNB initiates a secondary cell group change to SeNB1 and SeNB2, The flow chart of signaling related to UE capability negotiation between base stations, including:

Step 1: MeNB sends a SeNB modification request message (SeNB Modification Request) to SeNB1, carrying the configuration of the primary cell group, the configuration of the second secondary cell group and all capabilities of the UE.

Wherein, the configuration of the primary cell group is the configuration from the MeNB, and the configuration of the second secondary cell group is the configuration from the SeNB2.

Step 2, SeNB1 receives the SeNB modification request message from MeNB, updates the configuration of the first secondary cell group according to the configuration of the primary cell group, the configuration of the second secondary cell group and all the capabilities of the UE carried in the message, and updates the first The secondary cell group configuration is carried in the SeNB Modification Request Acknowledge message (SeNB Modification Request Acknowledge), which is replied to the MeNB.

Step 3: MeNB sends a SeNB modification request message (SeNB Modification Request) to SeNB2, carrying the primary cell group configuration, the first secondary cell group configuration and all capabilities of the UE.

Step 4, SeNB2 receives the SeNB modification request message from MeNB, updates the configuration of the second secondary cell group according to the configuration of the primary cell group, the configuration of the first secondary cell group and all the capabilities of the UE carried in the message, and sends the updated The secondary cell configuration is carried in the SeNB modification request response message (SeNB Modification Acknowlege) and replied to the MeNB.

In step 5, the MeNB sends an RRC connection reconfiguration message to the UE, carrying the configuration of the primary cell group, the configuration of the first secondary cell group, and the configuration of the second secondary cell.

In step 6, the UE replies an RRC connection reconfiguration complete message to the MeNB, indicating that the UE has enabled new radio resource configuration.

Step 7: After receiving the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message to SeNB1, carrying the primary cell group configuration, the second secondary cell group configuration and all capabilities of the UE, and notifies SeNB1 that the reconfiguration is complete.

Step 8: After receiving the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message to SeNB2, carrying the primary cell group configuration, the first secondary cell group configuration and all capabilities of the UE, and notifies SeNB2 that the reconfiguration is complete.

Fig. 5 is a schematic diagram of the interaction of the third scenario in the embodiment of the present invention. As shown in Fig. 5, it describes the situation that UE is connected to MeNB, SeNB1 and SeNB2 at the same time, when SeNB1 initiates the process of changing the secondary cell group to SeNB1, the base station Flowchart of related signaling for negotiating UE capabilities, including:

Step 1, SeNB1 sends a SeNB Modification Required message (SeNB Modification Required) to the MeNB, carrying the configuration of the first secondary cell group.

Step 2: MeNB receives the SeNB modification request message from SeNB1, and sends SeNB modification request message to SeNB2, carrying the primary cell group configuration, the first secondary cell group configuration and all capabilities of the UE.

Step 3, SeNB2 receives the SeNB modification request message from MeNB, updates the configuration of the second secondary cell group according to the configuration of the primary cell group, the configuration of the first secondary cell group and all the capabilities of the UE carried in the message, and updates the configuration of the second The secondary cell group configuration is carried in the SeNB modification request response message, which is returned to the MeNB.

Step 4: The MeNB sends an RRC connection reconfiguration message to the UE, carrying the configuration of the primary cell group, the configuration of the first secondary cell group, and the configuration of the second secondary cell.

In step 5, the UE replies an RRC connection reconfiguration complete message to the MeNB, indicating that the UE has enabled new radio resource configuration.

Step 6: After receiving the UE's RRC connection reconfiguration completion message, the MeNB replies to SeNB1 with a SeNB Modification Confirm message (SeNB Modification Confirm), carrying the configuration of the primary cell group, the configuration of the second secondary cell group and all capabilities of the UE, and notifies SeNB1 of the modification Finish.

Step 7: After receiving the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message to SeNB2, carrying the primary cell group configuration, the first secondary cell group configuration and all capabilities of the UE, and notifies SeNB2 that the reconfiguration is complete.

Fig. 6 is a schematic diagram of the interaction of the fourth scenario in the embodiment of the present invention. As shown in Fig. 6, it describes that when UE is connected to MeNB, SeNB1 and SeNB2 at the same time, MeNB transfers the context of UE on SeNB1 to the third secondary The base station SeNB, the secondary base station change (change of SeNB) process initiated by the base station, and the related signaling flow chart of the UE capability negotiation between the base stations, including:

Step 1: MeNB sends a SeNB addition request message to SeNB3, carrying the configuration of the primary cell group, the configuration of the first secondary cell group, the configuration of the second secondary cell group and all capabilities of the UE.

The configuration of the primary cell group is the configuration from the MeNB, the configuration of the first secondary cell group is the configuration from SeNB1, and the configuration of the second secondary cell group is the configuration from SeNB2. It should be noted that the primary cell group configuration and the second secondary cell configuration are used for UE capability negotiation, and the first secondary cell group configuration is used for delta signaling.

Step 2: SeNB3 receives the SeNB addition request message from MeNB, sets the configuration of the third secondary cell group according to the configuration of the primary cell group, the configuration of the second secondary cell group and all the capabilities of the UE carried in the message, and sets the configuration of the third secondary cell The group configuration is carried in the SeNB add request response message and replied to the MeNB.

In step 3, the MeNB sends a SeNB modification request message to SeNB2, carrying the configuration of the primary cell group, the configuration of the third secondary cell group and all capabilities of the UE.

Step 4, SeNB2 receives the SeNB modification request message from MeNB, updates the configuration of the second secondary cell group according to the configuration of the primary cell group, the configuration of the third secondary cell group and all the capabilities of the UE carried in the message, and sends the updated second secondary cell group configuration The configuration of the second secondary cell is carried in the SeNB modification request response message, and replied to the MeNB.

Step 5, MeNB sends SeNB release request message (SeNB Release Request) to SeNB1

In step 6, the MeNB sends an RRC connection reconfiguration message to the UE, carrying the configuration of the primary cell group, the configuration of the second secondary cell group, and the configuration of the third secondary cell.

In step 7, the UE replies an RRC connection reconfiguration complete message to the MeNB, indicating that the UE has enabled new radio resource configuration.

Step 8: After the MeNB receives the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message to SeNB2, carrying the primary cell group configuration, the third secondary cell group configuration and all capabilities of the UE, and notifies SeNB2 that the reconfiguration is complete.

Step 9: After the MeNB receives the UE's RRC connection reconfiguration complete message, the MeNB sends a SeNB reconfiguration complete message to SeNB3, carrying the primary cell group configuration, the second secondary cell group configuration and all capabilities of the UE, and notifies SeNB3 that the reconfiguration is complete.

FIG. 7 is a flow chart of another method for capability negotiation according to an embodiment of the present invention. As shown in FIG. 3 , the process includes the following steps:

Step S702, the source primary serving base station MeNB sends to the target MeNB the capability information of the UE under the jurisdiction of the source MeNB, the configuration of the source primary cell group of the source MeNB, and the source secondary cell groups of one or more source secondary serving base stations SeNB connected to the source MeNB configuration;

Step S704, the source MeNB receives its own target primary cell group configuration and the target secondary cell group configuration of one or more target SeNBs connected to the target MeNB from the reply of the target MeNB, wherein the target primary cell group configuration and the target secondary cell group configuration are at least Obtained according to the capability information of the UE, the configuration of the source primary cell group and the configuration of the source secondary cell group;

Step S706, the source MeNB performs RRC connection reconfiguration on the UE by using the source Pcell group configuration, the source Scell group configuration, the target Pcell group configuration and the target Scell group configuration.

Optionally, the source primary serving base station MeNB sends to the target MeNB the capability information of the UE under the jurisdiction of the source MeNB, the configuration of the source primary cell group of the source MeNB, and the source secondary cells of one or more source secondary serving base stations SeNB connected to the source MeNB The group configuration includes: the source MeNB sends a handover request message to the target MeNB, wherein the handover request message carries UE capability information, source primary cell group configuration, and source secondary cell group configuration.

Optionally, the receiving by the source MeNB of its own target primary cell group configuration and the target secondary cell group configuration of one or more target SeNBs connected to the target MeNB includes: the source MeNB receiving an addition request response message replied by the target MeNB, Wherein, the addition request response message carries the target primary cell group configuration and one or more target secondary cell group configurations.

Fig. 8 is a schematic diagram of the interaction of the fifth scenario in the embodiment of the present invention. As shown in Fig. 8, it describes that in order to realize the handover interruption time is zero, the user plane bearer of the UE is transferred from the source base station (source MeNB and/or source SeNB ) is transferred to the target base station (target MeNB and/or target SeNB), when the UE is kept connected with the source MeNB, target MeNB, source SeNB, and target SeNB at the same time, the related signaling process for negotiating UE capabilities between base stations Figures, including:

Step 1, the source MeNB sends a handover request message (Handover Request) to the target MeNB, carrying the configuration of the source primary cell group, the configuration of the source secondary cell group and all capabilities of the UE.

Step 2, the target MeNB receives the handover request message from the source MeNB, sets the target primary cell configuration according to the source primary cell group configuration, source secondary cell group configuration and all capabilities of the UE carried in the message, and the target SeNB sends a SeNB addition request message , carrying the configuration of the source primary cell group, the configuration of the source secondary cell group, the configuration of the target primary cell group and all capabilities of the UE.

Step 3, the target SeNB receives the SeNB addition request message from the target MeNB, and sets the target secondary cell group configuration according to the source primary cell group configuration, source secondary cell group configuration, target primary cell group configuration and all capabilities of the UE carried in the message , and carry the configuration of the target secondary cell group in the SeNB addition request response message, and reply to the target MeNB.

Step 4, the target MeNB receives the SeNB addition request response message from the target SeNB, and replies to the source MeNB with a handover request response message, carrying the configuration of the target primary cell group and the configuration of the target secondary cell.

Step 5, the source MeNB receives the handover request response message from the target MeNB, and sends a SeNB modification request message to the source SeNB, carrying the configuration of the source primary cell group, target primary cell group, target secondary cell group and all capabilities of the UE.

Step 6, the source SeNB receives the SeNB modification request message from the source MeNB, and updates the source secondary cell group configuration according to the source primary cell group configuration, target primary cell group configuration, target secondary cell group configuration and all capabilities of the UE carried in the message , and carry the updated source secondary cell group configuration in the SeNB modification request response message, and reply to the source MeNB.

Step 7, the source MeNB sends an X2 notification message to the target MeNB, carrying the configuration of the source primary cell, the configuration of the source secondary cell group and all capabilities of the UE.

Step 8, the source MeNB sends an RRC Connection Reconfiguration message (RRC Connection Reconfiguation) to the UE, carrying the source primary cell group configuration, source secondary cell group configuration, target primary cell group configuration and target secondary cell group configuration.

In step 9, the UE replies an RRC connection reconfiguration complete message (RRC ConnectionReconfiguration) to the target MeNB, indicating that the UE has enabled a new radio resource configuration.

Step 10: After receiving the UE's RRC connection reconfiguration complete message, the target MeNB sends a SeNB reconfiguration complete message to the target SeNB, carrying the source primary cell group configuration, source secondary cell group configuration, target primary cell group configuration and all capabilities of the UE , to notify the target SeNB that the reconfiguration is complete.

Step 11, after receiving the RRC connection reconfiguration complete message from the UE, the target MeNB sends a SeNB reconfiguration complete message to the source MeNB to notify the source MeNB that the reconfiguration is complete.

Step 12, after the source MeNB receives the SeNB reconfiguration complete message from the target MeNB, it sends a SeNB reconfiguration complete message to the source SeNB, carrying the configuration of the source main cell group, the configuration of the target main campus group, the configuration of the target cell group and all capabilities of the UE , to notify the source SeNB that the reconfiguration is complete.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is Better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

Example 2

In this embodiment, a device and system for capability negotiation are also provided, which are used to implement the above embodiments and preferred implementation modes, and those that have already been described will not be repeated. As used below, the term "module" may be a combination of software and/or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

FIG. 9 is a structural block diagram of an apparatus for capability negotiation according to an embodiment of the present invention, which can be applied in the main serving base station MeNB. As shown in FIG. 9, the apparatus includes:

The sending module 90 is configured to send to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB;

The receiving module 92 is configured to receive its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration;

The configuration module 94 is configured to perform RRC connection reconfiguration on the UE by using the configuration of the first secondary cell group and the configuration of the second secondary cell group.

Optionally, when the first SeNB is a SeNB to be accessed, the sending module 90 includes: a sending unit, configured to send a SeNB addition request message to the first SeNB, where the addition request message carries the UE's Capability information and configuration of the second secondary cell group.

Fig. 10 is a structural block diagram of another capability negotiation device according to an embodiment of the present invention, which can be applied in the source main serving base station MeNB in the base station transfer scenario. As shown in Fig. 10 , the device includes:

The sending module 10 is configured to send to the target MeNB the capability information of the UE under the jurisdiction of the source MeNB, the source primary cell group configuration of the source MeNB, and the source secondary cell group configuration of one or more source secondary serving base stations SeNB connected to the source MeNB;

The receiving module 12 is configured to receive the target primary cell group configuration of itself and the target secondary cell group configuration of one or more target SeNBs connected to the target MeNB replied by the target MeNB, wherein the target primary cell group configuration and the target secondary cell group configuration Obtained at least according to UE capability information, source primary cell group configuration and source secondary cell group configuration;

The configuration module 14 is configured to perform RRC connection reconfiguration on the UE by using the configuration of the source primary cell group, the configuration of the source secondary cell group, the configuration of the target primary cell group and the configuration of the target secondary cell group.

Optionally, the sending module 10 includes: a sending unit, configured to send a handover request message to the target MeNB, wherein the handover request message carries UE capability information, source primary cell group configuration, and source secondary cell group configuration.

FIG. 11 is a structural block diagram of a system for capability negotiation according to an embodiment of the present invention. As shown in FIG. 11 , the system includes:

Main serving base station MeNB110, multiple secondary serving base stations SeNB112, user equipment UE114,

MeNB110 includes:

The first sending module 1100 is configured to send to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB;

The first receiving module 1102 is configured to receive its own first secondary cell group configuration replied by the first SeNB, wherein the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration;

The first configuration module 1104 is configured to perform RRC connection reconfiguration on the UE by using the configuration of the first secondary cell group and the configuration of the second secondary cell group;

The first SeNB 112 includes:

The second receiving module 1120 is used for the capability information of the UE and the second secondary cell group configuration of other SeNBs except the first SeNB in the base station connected to the MeNB;

The second sending module 1122 is configured to reply to the MeNB with its own first secondary cell group configuration, where the first secondary cell group configuration is obtained at least according to UE capability information and the second secondary cell group configuration;

UE114 includes:

The third receiving module 1140 is configured to receive the configuration of the first secondary cell group and the configuration of the second secondary cell group;

The second configuration module 1142 is configured to update the radio resource configuration by using the configuration of the first secondary cell group and the configuration of the second secondary cell group.

Optionally, when the first SeNB is a SeNB to be accessed, the first sending module 1100 includes: a sending unit, configured to send a SeNB addition request message to the first SeNB, where the addition request message carries Capability information of the UE and configuration of the second secondary cell group.

It should be noted that the above-mentioned modules can be realized by software or hardware. For the latter, it can be realized by the following methods, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules can be combined in any combination The forms of are located in different processors.

Example 3

The embodiment of the invention also provides a storage medium. Optionally, in this embodiment, the above-mentioned storage medium may be configured to store program codes for performing the following steps:

S1, sending to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first SeNB;

S2. Receive its own first secondary cell group configuration replied by the first SeNB, where the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration;

S3. Perform RRC connection reconfiguration on the UE by using the first secondary cell group configuration and the second secondary cell group configuration.

Optionally, in this embodiment, the above-mentioned storage medium may include but not limited to: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk Various media that can store program codes such as discs or optical discs.

Optionally, in this embodiment, the processor executes, according to the program code stored in the storage medium, sending to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the information of all base stations connected to the MeNB except the first SeNB. Second secondary cell group configuration of other SeNBs;

Optionally, in this embodiment, the processor performs, according to the program code stored in the storage medium, its own first secondary cell group configuration upon receiving the reply from the first SeNB, where the first secondary cell group configuration is at least based on UE capability Information and configuration of the second secondary cell group are obtained;

Optionally, in this embodiment, the processor performs RRC connection reconfiguration on the UE by using the first secondary cell group configuration and the second secondary cell group configuration according to the program code stored in the storage medium.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not repeated in this embodiment.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (18)

1. A method for capability negotiation, comprising: The primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cell group of other SeNBs among the base stations connected to the MeNB except the first secondary serving base station SeNB configuration; The MeNB receives its own first secondary cell group configuration replied by the first secondary serving base station SeNB, wherein the first secondary cell group configuration is at least based on the capability information of the UE and the second secondary cell group configuration get; The MeNB uses the first secondary cell group configuration and the second secondary cell group configuration to perform RRC connection reconfiguration on the UE. 2. The method according to claim 1, wherein, when the first secondary serving base station SeNB is the SeNB to be accessed, the primary serving base station MeNB sends the first secondary serving base station SeNB to the first secondary serving base station SeNB The capability information of the UE and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first secondary serving base station SeNB include: The MeNB sends a SeNB addition request message to the first secondary serving base station SeNB, where the addition request message carries the capability information of the UE and the configuration of the second secondary cell group. 3. The method according to claim 2, wherein after the MeNB sends a SeNB addition request message to the first secondary serving base station SeNB, the method further comprises: After receiving the SeNB addition request response message replied by the first secondary serving base station SeNB, the MeNB sends a SeNB modification request message to the other SeNB, wherein the addition request response message carries the first secondary cell group configuration and Capability information of the UE, the SeNB modification request message carries the configuration of the first secondary cell group and the capability information of the UE. 4. The method according to claim 1, wherein when the capability information of the UE changes, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the information related to the UE's capabilities. The configuration of the second secondary cell group of other SeNBs in the base stations connected to the MeNB except the first secondary serving base station SeNB includes: The MeNB sends a first secondary serving base station SeNB modification request message and a second SeNB modification request message to the first secondary serving base station SeNB and the other SeNBs respectively, wherein the first secondary serving base station SeNB modification request message carries UE's Capability information and configuration of the second secondary cell group, where the second SeNB modification request message carries the capability information of the UE and the configuration of the first secondary cell group. 5. The method according to claim 4, wherein the receiving of the MeNB's own first secondary cell group configuration from the reply of the first secondary serving base station SeNB comprises: The MeNB receives the SeNB modification request response message replied by the first secondary serving base station SeNB, wherein the SeNB modification request response message carries the updated first secondary cell group configuration of the first secondary serving base station SeNB. 6. The method according to claim 1, wherein when the configuration of the first secondary cell group of the first secondary serving base station SeNB changes, the primary serving base station MeNB sends the MeNB The capability information of the UE under the jurisdiction and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first secondary serving base station SeNB include: After the MeNB receives the SeNB modification request message sent by the other SeNB, it sends a SeNB modification request message to the first secondary serving base station SeNB, wherein the SeNB modification request message carries the configuration of the second secondary cell group, and the SeNB modification request message It carries the capability information of the UE and the configuration of the second secondary cell group. 7. The method according to claim 6, wherein the MeNB receives its own first secondary cell group configuration from the reply of the first secondary serving base station SeNB: The MeNB receives a modification request response message replied by the first secondary serving base station SeNB, wherein the modification request response message carries an updated configuration of the first secondary cell group. 8. The method according to claim 1, wherein when a context transfer occurs between SeNBs, the primary serving base station MeNB sends to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the communication with the MeNB The configuration of the second secondary cell group of other SeNBs in the connected base stations except the first secondary serving base station SeNB includes: The MeNB sends a SeNB addition request message to the first secondary serving base station SeNB, where the SeNB addition request message carries UE capability information and second secondary cell group configuration. 9. The method according to claim 8, wherein the MeNB receives its own first secondary cell group configuration from the reply of the first secondary serving base station SeNB: The MeNB receives an addition request response message from the first secondary serving base station SeNB, where the addition request response message carries the configuration of the first secondary cell group. 10. A method for capability negotiation, comprising: The source primary serving base station MeNB sends to the target MeNB the capability information of the UE under the jurisdiction of the source primary serving base station MeNB, the configuration of the source primary cell group of the source primary serving base station MeNB, and one or Source secondary cell group configuration of multiple source secondary serving base stations SeNB; The source primary serving base station MeNB receives its own target primary cell group configuration and target secondary cell group configurations of one or more target SeNBs connected to the target MeNB replied by the target MeNB, wherein the target primary cell group The configuration and the target secondary cell group configuration are obtained at least according to the capability information of the UE, the configuration of the source primary cell group, and the configuration of the source secondary cell group; The source primary serving base station MeNB uses the source primary cell group configuration, the source secondary cell group configuration, the target primary cell group configuration, and the target secondary cell group configuration to perform RRC connection reconfiguration on the UE. 11. The method according to claim 10, wherein the source main serving base station MeNB sends the target MeNB the capability information of the UE under the jurisdiction of the source main serving base station MeNB, the source main cell of the source main serving base station MeNB The group configuration and the source secondary cell group configuration of one or more source secondary serving base stations SeNB connected to the source primary serving base station MeNB include: The source primary serving base station MeNB sends a handover request message to the target MeNB, wherein the handover request message carries UE capability information, source primary cell group configuration, and source secondary cell group configuration. 12. The method according to claim 11, wherein the source primary serving base station MeNB receives its own target primary cell group configuration and one or more target SeNBs connected to the target MeNB replied by the target MeNB The target secondary cell group configuration includes: The source primary serving base station MeNB receives an addition request response message replied by the target MeNB, wherein the addition request response message carries target primary cell group configuration and one or more target secondary cell group configurations. 13. An apparatus for capability negotiation, which is applied in the main serving base station MeNB, characterized in that it includes: A sending module, configured to send to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second secondary cells of other SeNBs among the base stations connected to the MeNB except the first secondary serving base station SeNB group configuration; A receiving module, configured to receive its own first secondary cell group configuration replied by the first secondary serving base station SeNB, wherein the first secondary cell group configuration is at least based on the capability information of the UE and the second secondary cell The group configuration is obtained; A configuration module, configured to perform RRC connection reconfiguration on the UE by using the first secondary cell group configuration and the second secondary cell group configuration. 14. The device according to claim 13, wherein when the first secondary serving base station SeNB is the SeNB to be accessed, the sending module includes: The sending unit is configured to send a SeNB adding request message to the first secondary serving base station SeNB, where the adding request message carries the capability information of the UE and the configuration of the second secondary cell group. 15. A device for capability negotiation, which is applied to a source master serving base station MeNB in a base station transfer scenario, characterized in that it includes: A sending module, configured to send to the target MeNB the capability information of the UE under the jurisdiction of the source primary serving base station MeNB, the configuration of the source primary cell group of the source primary serving base station MeNB, and one or more cell groups connected to the source primary serving base station MeNB. Source secondary cell group configuration of multiple source secondary serving base stations SeNB; A receiving module, configured to receive its own target primary cell group configuration and target secondary cell group configurations of one or more target SeNBs connected to the target MeNB replied by the target MeNB, wherein the target primary cell group configuration and The configuration of the target secondary cell group is obtained at least according to the capability information of the UE, the configuration of the source primary cell group, and the configuration of the source secondary cell group; A configuration module, configured to use the source primary cell group configuration, the source secondary cell group configuration, the target primary cell group configuration and the target secondary cell group configuration to perform RRC connection reconfiguration on the UE. 16. The device according to claim 15, wherein the sending module comprises: The sending unit is configured to send a handover request message to the target MeNB, wherein the handover request message carries UE capability information, source primary cell group configuration, and source secondary cell group configuration. 17. A capability negotiation system, comprising: a primary serving base station MeNB, multiple secondary serving base stations SeNB, and user equipment UE, characterized in that, The MeNB includes: The first sending module is configured to send to the first secondary serving base station SeNB the capability information of the UE under the jurisdiction of the MeNB and the second information of other SeNBs in the base stations connected to the MeNB except the first secondary serving base station SeNB Secondary cell group configuration; The first receiving module is configured to receive its own first secondary cell group configuration replied by the first secondary serving base station SeNB, wherein the first secondary cell group configuration is at least based on the capability information of the UE and the second Acquisition of secondary cell group configuration; A first configuration module, configured to use the first secondary cell group configuration and the second secondary cell group configuration to perform RRC connection reconfiguration on the UE; The first secondary serving base station SeNB includes: The second receiving module is used for the capability information of the UE and the second secondary cell group configuration of other SeNBs in the base stations connected to the MeNB except the first secondary serving base station SeNB; A second sending module, configured to reply to the MeNB with its own first secondary cell group configuration, where the first secondary cell group configuration is obtained at least according to the capability information of the UE and the second secondary cell group configuration; The UE includes: A third receiving module, configured to receive the configuration of the first secondary cell group and the configuration of the second secondary cell group; A second configuration module, configured to update the radio resource configuration by using the configuration of the first secondary cell group and the configuration of the second secondary cell group. 18. The system according to claim 17, wherein when the first secondary serving base station SeNB is the SeNB to be accessed, the first sending module includes: The sending unit is configured to send a SeNB adding request message to the first secondary serving base station SeNB, where the adding request message carries the capability information of the UE and the configuration of the second secondary cell group.

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