CN107040346B

CN107040346B - User plane transmission channel processing method and base station

Info

Publication number: CN107040346B
Application number: CN201610076143.XA
Authority: CN
Inventors: 刘星; 吴昱民
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-02-03
Filing date: 2016-02-03
Publication date: 2020-09-01
Anticipated expiration: 2036-02-03
Also published as: WO2017133303A1; CN107040346A

Abstract

The utility model discloses a user plane transmission channel processing method and a base station, which comprises that a first eNB and a second eNB manage the user plane transmission channel between cells under the control of the first eNB and the second eNB through the interaction of cell information and transmission layer address information. And the user plane transmission channel is used for carrying user plane data transmission of one or more UEs which respectively configure corresponding cells into PCell and SCell among corresponding cells. Through the technical scheme provided by the invention, the user plane transmission channel for providing data transmission for the UE is established between the eNBs, so that the transmission channel distinguishes different service cells, and the CA between the eNBs is realized.

Description

User plane transmission channel processing method and base station

Technical Field

The present invention relates to, but not limited to, carrier aggregation technology, and in particular, to a method and a base station for processing a user plane transmission channel supporting CA between enbs.

Background

In the third generation partnership project release 10(3GPP Rel 10), in order to meet the requirements of a single user peak rate and system capacity improvement, a Carrier Aggregation (CA) technology for increasing a transmission bandwidth by aggregating a plurality of Component Carriers (CCs) is introduced. In this way, an evolved node b (eNB) may enable a User Equipment (UE) to transmit uplink and downlink data on multiple carriers simultaneously according to the capability of the UE, service requirements, network load, and other conditions. The UE may use a continuous carrier or a non-continuous carrier; the carriers in the same frequency band can be aggregated together, and the carriers in different frequency bands can also be aggregated together. In CA, a serving Cell configured when a UE initially establishes Radio Resource Control (RRC) connection is referred to as a Primary Cell (PCell, Primary Cell), a carrier in the Primary Cell is referred to as a Primary component carrier (PCC, Primary CC), other multiple serving cells additionally configured are referred to as Secondary cells (scells, Secondary cells), and a carrier in the Secondary Cell is referred to as a Secondary component carrier (SCC, Secondary CC).

The 3GPP Rel 12 further extends the carrier aggregation technology and scenario, so that the aggregated carriers can belong to two different enbs, respectively. At this time, the UE is required to have Dual Connectivity capability, which is also called Dual Connectivity (DC) technology. The main application scenario of the dual connectivity technology is heterogeneous multi-layer network, serving the wide deployment of small base stations and the requirement of non-ideal backhaul links. Due to the limitations of non-ideal backhaul links, small base stations in DC need to carry more functionality and autonomy than scells in CA. In DC, functions and modules sensitive to delay requirements are placed on the small base station, resulting in that the UE of Rel 10 cannot directly use the DC technology.

As described above, the UE needs additional functions and capabilities to support DC. For a UE without dual connectivity capability, if carriers on two enbs need to be aggregated together, conventional CA techniques are used.

In dual connectivity, a transmission channel is established in units of bearers, and an eNB distinguishes different user bearers and logical channels through different transmission channels. However, in carrier aggregation between enbs, user plane data is multiplexed and packaged at the MAC layer of the eNB where the PCell is located according to the size of the air interface resource reported by the serving cell, and then sent to the target serving cell, and a transmission channel does not need to distinguish user bearers and logical channels, but needs to distinguish different serving cells. That is, as with DC, aggregation of carriers on two or more enbs using CA technology requires establishment of a data transmission channel for a UE on the user plane. In order to implement CA between enbs, a user plane transmission channel for providing data transmission for UE needs to be established between enbs. However, no related implementation is provided in the prior art.

Disclosure of Invention

The invention provides a user plane transmission channel processing method and a base station, which can enable a transmission channel to distinguish different service cells and realize CA between eNBs.

In order to achieve the object of the present invention, the present invention provides a method for processing a user plane transmission channel, comprising:

managing a user plane transmission channel between cells under the control of a first evolved node B (eNB) and a second eNB through the interaction of cell information and transmission layer address information between the first eNB and the second eNB;

the user plane transmission channel is used for carrying user plane data transmission of one or more UEs, wherein the corresponding cells are respectively configured to be a primary cell PCell and a secondary cell SCell.

Optionally, the interacting between the first eNB and the second eNB through the cell information and the transport layer address information includes:

the first eNB requests the second eNB to establish a transmission channel and transmits information of one or more cells under the control of the first eNB to the second eNB;

the first eNB receives one or more cell information and second transmission layer address information which are returned from the second eNB and are managed by the second eNB;

and the first eNB returns the first transmission layer address information to the second eNB so as to establish a user plane transmission channel between cells under the control of the first eNB and the second eNB.

Optionally, the method further comprises: adding, modifying, and/or deleting a user plane transmission channel between the first eNB and the second eNB.

Optionally, adding, modifying, and/or deleting a transmission channel between the first eNB and the second eNB includes:

the first eNB sends a transmission channel modification request message to the second eNB, wherein the transmission channel modification request message carries first transmission layer address information;

and the second eNB sends a transmission channel modification request response message to the first eNB, wherein the transmission channel modification request response message carries second transmission layer address information.

Optionally, the transmission channel modification request message further carries: information of one or more added, and/or modified, and/or deleted cells under the first eNB jurisdiction.

Optionally, the receiving, by the first eNB, the one or more cell information and the second transport layer address information under the jurisdiction of the second eNB from the second eNB includes:

the first eNB receives a first transmission channel establishment response message from the second eNB, and the first transmission channel establishment response message carries: information of one or more cells under the jurisdiction of the second eNB, and second transport layer address information.

Optionally, the returning, by the first eNB, the first transport layer address information to the second eNB includes:

and the first eNB sends a second transmission channel establishment response message to the second eNB, wherein the second transmission channel establishment response message carries the address information of the first transmission layer.

the first eNB receives one or more cell information managed by a second eNB from a second eNB;

and the first eNB receives a transmission channel modification request response message returned from the second eNB, wherein the transmission channel modification request response message carries second transmission layer address information.

Optionally, the first transport layer address information includes: one or more added, modified or deleted first transport layer addresses, and cell identities of cells uniquely corresponding to the first transport layer addresses under the jurisdiction of the first eNB and cell identities of cells uniquely corresponding under the jurisdiction of the second eNB; wherein, the first transmission layer address is used or used for the cell which is uniquely corresponding under the jurisdiction of the first eNB to receive the user plane data which is sent by the cell which is uniquely corresponding under the jurisdiction of the second eNB;

the second transport layer address information includes: one or more added, modified or deleted second transport layer addresses, and cell identifications of cells uniquely corresponding to the second transport layer addresses under the jurisdiction of the first eNB and cell identifications of cells uniquely corresponding under the jurisdiction of the second eNB; and the second transport layer address is or was used for the cell which is uniquely corresponding under the jurisdiction of the second eNB to receive the user plane data which is sent by the cell which is uniquely corresponding under the jurisdiction of the first eNB.

Optionally, the first eNB is a master control base station P-eNB; the second eNB is an auxiliary base station S-eNB;

the interaction between the first eNB and the second eNB through the cell information and the transport layer address information includes:

the P-eNB requests the S-eNB to establish a transmission channel, and transmits cell information and third transmission layer address information of one or more SCells to be added to the S-eNB;

and the P-eNB receives the cell information of one or more SCells approved to be added and fourth transmission layer address information from the S-eNB so as to establish a user plane transmission channel between the PCell and the SCell under the control of the S-eNB.

Optionally, the method further comprises: and modifying and/or deleting a user plane transmission channel between the PCell and the SCell under the S-SeNB.

Optionally, the modifying a transmission channel between the PCell and the SCell under the S-SeNB includes:

the P-eNB sends a carrier aggregation modification request message to the S-eNB, and the carrier aggregation modification request message carries third transport layer address information needing to be modified;

and the P-eNB receives a carrier aggregation modification request response message from the S-eNB, and the carrier aggregation modification request response message carries fourth transport layer address information needing to be modified.

the S-eNB sends a carrier aggregation modification request message to the P-eNB, and the carrier aggregation modification request message carries fourth transport layer address information needing to be modified;

and the S-eNB receives a carrier aggregation modification request response message from the P-eNB, and the carrier aggregation modification request response message carries third transport layer address information needing to be modified.

Optionally, the deleting the transmission channel between the PCell and the SCell under the S-SeNB includes:

and the P-eNB sends a carrier aggregation release request message to the S-eNB, wherein the carrier aggregation release request message carries third transport layer address information needing to be deleted.

the S-eNB sends a carrier aggregation release request message to the P-eNB, and the carrier aggregation release to-be-removed message carries fourth transport layer address information to be deleted;

and the S-eNB receives a carrier aggregation release request response message returned from the P-eNB, and the carrier aggregation release request response message carries third transport layer address information needing to be deleted.

Optionally, the P-eNB requesting to establish a transmission channel from the S-eNB, and transferring cell information and third transmission layer address information of one or more scells to be added to the S-eNB includes:

the P-eNB sends a carrier aggregation adding request message to the S-eNB, and the carrier aggregation adding request message carries: control plane signaling for carrier aggregation addition, and third transport layer address information.

Optionally, the P-eNB receiving cell information and fourth transport layer address information of one or more scells granted to be added from the S-eNB comprises:

and the P-eNB receives a carrier aggregation addition request response message from the S-eNB, and the carrier aggregation addition request response message carries control plane information for replying the SCell addition request and fourth transmission layer address information.

Optionally, the third transport layer address information includes: one or more added, modified or deleted third transmission layer addresses, and cell identities of the scells uniquely corresponding to the third transmission layer addresses under the jurisdiction of the S-eNB; the third transmission layer address is or was used for the PCell to receive user plane data sent by the SCell managed by the S-eNB;

the fourth transport layer address information includes: one or more added, modified or deleted fourth transmission layer addresses, and cell identities of the scells uniquely corresponding to the fourth transmission layer addresses under the jurisdiction of the S-eNB; and the fourth transmission layer address is or was used for the S-eNB to manage the uniquely corresponding SCell to receive the user plane data transmitted by the PCell.

Optionally, the method further comprises: and sending data on the established user plane transmission channel.

Optionally, the user plane data packet in the data format of the sent data carries: user equipment UE identity information, and/or channel information or identity, and/or service type information or identity.

Optionally, the UE identification information, the channel information or the identifier, and the service type information or the identifier are carried by a GPRS tunneling protocol-user plane GTP-U extension packet header.

The invention also provides a base station, which comprises a first processing module and a first establishing module; the first processing module is used for requesting the second base station to establish a transmission channel and transmitting the information of one or more cells managed by the base station to the second base station; receiving a first transmission channel establishment response which is returned from the second base station and carries one or more cell information and second transmission layer address information managed by the second base station;

and the first establishing module is used for returning a second establishing transmission channel response carrying the first transmission layer address information to the second base station so as to establish a user plane transmission channel between cells administered by the second base station.

Optionally, the first processing module is further configured to: and adding, modifying and/or deleting the established user plane transmission channel between the cells governed by the second base station.

Optionally, the first processing module is further specifically configured to: transmitting a transmission channel modification request message to the second base station, wherein the transmission channel modification request message carries first transmission layer address information needing to be modified;

and receiving a transmission channel modification request response message from the second base station, wherein the transmission channel modification request response message carries second transmission layer address information needing to be modified.

Optionally, the transmission channel modification request message further carries: the information of one or more added, modified and/or deleted cells managed by the base station to which the first processing module belongs.

the second transport layer address information includes: one or more added, modified or deleted second transport layer addresses, and cell identifications of cells uniquely corresponding to the second transport layer addresses under the jurisdiction of the first eNB and cell identifications of cells uniquely corresponding under the jurisdiction of the second eNB; wherein, the second transmission layer address is used or used for the cell which is uniquely corresponding under the jurisdiction of the second eNB to receive the user plane data which is sent by the cell which is uniquely corresponding under the jurisdiction of the first eNB; .

The invention also provides a base station, which comprises a second processing module and a second establishing module, wherein,

the second processing module is used for receiving a request for establishing a transmission channel from the first base station, wherein the request carries one or more cell information managed by the first base station; returning a first transmission channel establishment response carrying one or more cell information and second transmission layer address information under the control of the base station to which the first base station belongs to the first base station;

a second establishing module, configured to receive a second transmission channel establishing response carrying the first transmission layer address information from the first base station, so as to establish, with the first base station, a user plane transmission channel between cells governed by the base station to which the second base station belongs;

wherein the content of the first and second substances,

the first transport layer address information includes: one or more added, modified or deleted first transport layer addresses, and cell identities of cells uniquely corresponding to the first transport layer addresses under the jurisdiction of the first eNB and cell identities of cells uniquely corresponding under the jurisdiction of the second eNB; wherein, the first transmission layer address is used or used for the cell which is uniquely corresponding under the jurisdiction of the first eNB to receive the user plane data which is sent by the cell which is uniquely corresponding under the jurisdiction of the second eNB;

The invention provides a base station, which comprises the two base stations.

The invention also provides a master control base station, which comprises a third processing module and a third establishing module; wherein the content of the first and second substances,

the third processing module is used for requesting the auxiliary base station to establish a transmission channel and transmitting the cell information of one or more SCells needing to be added and third transmission layer address information to the auxiliary base station; receiving cell information and fourth transmission layer address information of one or more SCells agreeing to be added from the secondary base station;

and the third establishing module is used for establishing a user plane transmission channel between the PCell managed by the master control base station and the SCell managed by the auxiliary base station.

Optionally, the third processing module is further configured to: and modifying and/or deleting a user plane transmission channel between the PCell managed by the master control base station and the SCell managed by the auxiliary base station.

Optionally, the modifying, by the third processing module, a user plane transmission channel between the PCell managed by the master control base station to which the third processing module belongs and the SCell under the secondary base station specifically includes:

the master control base station to which the third processing module belongs sends a carrier aggregation modification request message to the auxiliary base station, and the carrier aggregation modification request message carries third transport layer address information to be modified;

receiving a carrier aggregation modification request response message from the auxiliary base station, wherein the carrier aggregation modification request response message carries fourth transport layer address information agreeing to modification;

alternatively, the first and second electrodes may be,

the master base station to which the third processing module belongs receives a carrier aggregation modification request message from the auxiliary base station, and the carrier aggregation modification request message carries fourth transport layer address information to be modified;

and sending a carrier aggregation modification request response message to the auxiliary base station, wherein the carrier aggregation modification request response message carries third transport layer address information.

Optionally, the deleting, by the third processing module, the user plane transmission channel between the PCell managed by the master control base station to which the third processing module belongs and the SCell under the secondary base station specifically includes:

the master control base station to which the third processing module belongs sends a carrier aggregation release request message to the auxiliary base station, and the carrier aggregation release request message carries third transport layer address information to be deleted;

alternatively, the first and second electrodes may be,

the master base station to which the third processing module belongs receives a carrier aggregation release request message from the auxiliary base station, and the carrier aggregation release request message carries fourth transport layer address information to be deleted;

and the master base station to which the third processing module belongs returns a carrier aggregation release request response message to the auxiliary base station, wherein the carrier aggregation release request response message carries third transport layer address information to be deleted.

Optionally, the third processing module is specifically configured to:

sending a carrier aggregation addition request message to the auxiliary base station, wherein the carrier aggregation addition request message carries: control plane signaling for carrier aggregation addition, and third transport layer address information; and receiving a carrier aggregation addition request response message from the auxiliary base station, wherein the carrier aggregation addition request response message carries control plane information for replying the carrier aggregation addition request and fourth transport layer address information.

The invention also provides an auxiliary base station, which comprises a fourth processing module and a fourth establishing module; wherein the content of the first and second substances,

a fourth processing module, configured to receive a request for establishing a transmission channel from the master base station, where the request carries cell information of one or more scells to be added and third transport layer address information; returning the cell information and the fourth transmission layer address information of one or more SCells which are allowed to be added to the master control base station;

and the fourth establishing module is used for establishing a user plane transmission channel between the SCell under the control of the auxiliary base station to which the establishing module belongs and the PCell under the control of the master control base station.

Optionally, the fourth processing module is further configured to: and modifying and/or deleting a user plane transmission channel between the SCell under the control of the auxiliary base station and the Pcell under the control of the main control base station.

Optionally, the modifying, by the fourth processing module, a user plane transmission channel between the SCell managed by the secondary base station to which the fourth processing module belongs and the Pcell managed by the primary base station specifically includes:

the auxiliary base station to which the fourth processing module belongs receives a carrier aggregation modification request message from the master base station, and the carrier aggregation modification request message carries third transport layer address information to be modified;

and returning a carrier aggregation modification request response message to the master control base station, wherein the carrier aggregation modification request response message carries the fourth transport layer address information which agrees to modification.

Alternatively, the first and second electrodes may be,

the auxiliary base station to which the fourth processing module belongs sends a carrier aggregation modification request message to the master base station, and the carrier aggregation modification request message carries fourth transport layer address information to be modified;

and receiving a carrier aggregation modification request response message returned from the master base station, wherein the carrier aggregation modification request response message carries third transport layer address information.

Optionally, the deleting, by the fourth processing module, a user plane transmission channel between the SCell managed by the secondary base station to which the fourth processing module belongs and the Pcell managed by the primary base station specifically includes:

the auxiliary base station to which the fourth processing module belongs receives a carrier aggregation release request message from the master base station, and the carrier aggregation release request message carries third transport layer address information to be deleted;

alternatively, the first and second electrodes may be,

the auxiliary base station to which the fourth processing module belongs sends a carrier aggregation release request message to the master base station, and the carrier aggregation release request message carries fourth transport layer address information to be deleted;

and the auxiliary base station to which the fourth processing module belongs receives a carrier aggregation release request response message returned from the master base station, and the carrier aggregation release request response message carries third transport layer address information to be deleted.

Optionally, the fourth processing module is specifically configured to:

sending a carrier aggregation addition request message to the master base station, wherein the carrier aggregation addition request message carries: control plane signaling for carrier aggregation addition, and fourth transport layer address information; and receiving a carrier aggregation addition request response message from the master base station, wherein the carrier aggregation addition request response message carries control plane information for replying the carrier aggregation addition request and third transport layer address information.

The invention also provides a base station, which comprises the main control base station and the auxiliary base station.

The invention also provides a computer-readable storage medium storing computer-executable instructions for performing any of the above methods for user plane transmission channel processing.

Compared with the prior art, the technical scheme of the application comprises the following steps: and establishing a user plane transmission channel between cells under the control of the first eNB and the second eNB through the interaction of the cell information and the transmission layer address information between the first eNB and the second eNB. And the user plane transmission channel is used for carrying user plane data transmission of one or more UEs which respectively configure corresponding cells into PCell and SCell among corresponding cells. Through the technical scheme provided by the invention, the user plane transmission channel for providing data transmission for the UE is established between the eNBs, so that the transmission channel distinguishes different service cells, and the CA between the eNBs is realized.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a flow chart of a method for processing a user plane transmission channel according to the present invention;

FIG. 2 is a flow chart of another method for processing a user plane transmission channel according to the present invention;

fig. 3 is a flowchart illustrating the establishment of a user plane transmission channel according to a first embodiment of the present invention;

fig. 4 is a flowchart illustrating establishment of a user plane transmission channel according to a second embodiment of the present invention;

fig. 5 is a flowchart illustrating establishment of a user plane transmission channel according to a third embodiment of the present invention;

FIG. 6 is a flow chart illustrating a modification of a user plane transmission channel according to a first embodiment of the present invention;

FIG. 7 is a flow chart illustrating a second embodiment of a modification of a user plane transmission channel according to the present invention;

fig. 8 is a flow chart illustrating a modification of a user plane transmission channel according to a third embodiment of the present invention;

fig. 9 is a flowchart illustrating a modification of a user plane transmission channel according to a fourth embodiment of the present invention;

FIG. 10 is a schematic diagram of an architecture for establishing a user plane transmission channel between base stations according to the present invention;

fig. 11 is a schematic diagram of an architecture for establishing a user plane transmission channel between a master base station and an auxiliary base station according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The implementation of the invention comprises: and managing a user plane transmission channel between cells under the control of the first eNB and the second eNB through the interaction of the cell information and the transmission layer address information between the first eNB and the second eNB. The user plane transmission channel is used for carrying user plane data transmission of one or more UEs, wherein the corresponding cells are respectively configured to be a primary cell (PCell) and a secondary cell (SCell), and the UEs are located between the corresponding cells. Through the technical scheme provided by the invention, the user plane transmission channel for providing data transmission for the UE is established between the eNBs, so that the transmission channel distinguishes different service cells, and the CA between the eNBs is realized.

Fig. 1 is a flowchart of a method for processing a user plane transmission channel according to the present invention, as shown in fig. 1, including:

step 100: the first eNB requests the second eNB to establish a transmission channel and transmits the information of one or more cells under the control of the first eNB to the second eNB. The method specifically comprises the following steps:

the first eNB transmits a transmission channel setup request message, which may be an X2 setup request message (X2 setup request), to the second eNB. The transmission channel establishment request message carries information of one or more cells managed by the first eNB, such as a Cell identifier (Cell ID), a Physical Cell Identifier (PCI), and the like.

Step 101: and the first eNB receives one or more cell information and second transmission layer address information which are returned from the second eNB and are managed by the second eNB. The method specifically comprises the following steps:

the first eNB receives a first transport channel setup response message, which may be an X2 setup response message (X2 setup response), from the second eNB. The first transmission channel establishment response message carries: information of one or more cells under the jurisdiction of the second eNB, such as Cell ID, PCI, etc.; and second transport layer address information. Wherein the content of the first and second substances,

the second transport layer address information includes one or more second transport layer addresses, and cell identifiers of cells uniquely corresponding to the second transport layer addresses under the jurisdiction of the first eNB and cell identifiers of cells uniquely corresponding under the jurisdiction of the second eNB. Wherein the content of the first and second substances,

the second transport layer address is used for the cell uniquely corresponding to the second eNB to receive the user plane data sent by the cell uniquely corresponding to the first eNB.

Step 102: and the first eNB returns the first transmission layer address information to the second eNB so as to establish a user plane transmission channel between cells under the control of the first eNB and the second eNB. The method specifically comprises the following steps:

and the first eNB sends a second transmission channel establishment response message to the second eNB, and the second transmission channel establishment response message carries the first transmission layer address information. Wherein the content of the first and second substances,

the first transport layer address information includes one or more first transport layer addresses, and cell identifiers of cells uniquely corresponding to the first transport layer addresses under the jurisdiction of the first eNB and cell identifiers of cells uniquely corresponding under the jurisdiction of the second eNB. Wherein the content of the first and second substances,

the first transport layer address is used for the cell uniquely corresponding to the first eNB to receive the user plane data sent by the cell uniquely corresponding to the second eNB.

Further, the method further comprises: adding, and/or modifying, and/or deleting transmission channels between the first eNB and the second eNB. The method specifically comprises the following steps:

first, the first eNB transmits a transmission channel modification request message, which may be an eNB Configuration Update message (eNB Configuration Update), to the second eNB. Wherein, the transmission channel modification request message at least carries the first transmission layer address information. Further, if there is a modification to the Cell information, the transmission channel modification request message also carries information of one or more added, modified and/or deleted cells under the control of the first eNB, such as Cell ID, PCI, etc. Wherein the content of the first and second substances,

the first transport layer address information comprises one or more added, modified or deleted first transport layer addresses, and cell identifications of cells uniquely corresponding to the first transport layer addresses under the jurisdiction of the first eNB and cell identifications of cells uniquely corresponding under the jurisdiction of the second eNB. Wherein the content of the first and second substances,

the first transport layer address is or was used for the cell uniquely corresponding to the first eNB to receive the user plane data sent by the cell uniquely corresponding to the second eNB.

Then, the second eNB sends a transmission channel modification request response message, which may be an eNB Configuration Update response message (eNB Configuration Update acknowledgement), to the first eNB. And carrying the second transmission layer address information in the transmission channel modification request response message. Wherein the content of the first and second substances,

the second transport layer address information comprises one or more than one added, modified or deleted second transport layer addresses, and cell identifications of cells uniquely corresponding to the second transport layer addresses under the jurisdiction of the first eNB and cell identifications of cells uniquely corresponding under the jurisdiction of the second eNB. Wherein the content of the first and second substances,

the second transport layer address is or was used for the cell uniquely corresponding to the second eNB under jurisdiction to receive the user plane data transmitted by the cell uniquely corresponding to the first eNB under jurisdiction.

In the method for processing the user plane transmission channel shown in fig. 1, the first transmission channel establishment response message in step 101 may not carry the second transport layer address information, and the second transmission channel establishment response message in step 102 may not carry the first transport layer address information, that is: the first eNB requests the second eNB to establish a transmission channel and transmits the information of one or more cells under the control of the first eNB to the second eNB; the second eNB will administer itself with one or more cell information. Thus, the first transport layer address information and the second transport layer address information may be transferred between the first eNB and the second eNB after X2 is established through the above transport channel modification procedure, such as eNB configuration update message, that is: a first eNB sends a transmission channel modification request message to a second eNB, wherein the transmission channel modification request message carries first transmission layer address information; and the second eNB sends a transmission channel modification request response message to the first eNB, wherein the transmission channel modification request response message carries second transmission layer address information.

Fig. 2 is a flowchart of another user plane transmission channel processing method according to the present invention, wherein an eNB of a PCell including a UE is a master base station (P-eNB, PCell eNB), and the P-eNB may further include one or more scells of the UE; while an eNB containing only scells for one or more UEs is a secondary base station (S-eNB, SCell eNB). As shown in fig. 2, includes:

step 200: and the P-eNB requests the S-eNB to establish a transmission channel and transmits the cell information and the third transmission layer address information of one or more SCells needing to be added to the S-eNB.

The method specifically comprises the following steps:

the P-eNB sends a carrier aggregation adding request message to the S-eNB, wherein the carrier aggregation adding request message carries: control plane signaling for carrier aggregation addition, such as cell information of one or more SCells to be added, cell information of a PCell, radio resource configuration information, C-RNTI information and the like; and third transport layer address information. At this time, the process of the present invention,

the third transport layer address information includes one or more third transport layer addresses, and cell identifications of scells uniquely corresponding to the third transport layer addresses under the jurisdiction of the S-eNB. Wherein the content of the first and second substances,

and the third transmission layer address is used for the PCell to receive user plane data sent by the only corresponding SCell under the jurisdiction of the S-eNB. The only corresponding SCell is one of the one or more scells that need to be added in the carrier aggregation addition request message.

Step 201: and the P-eNB receives the cell information of one or more SCells approved to be added and fourth transmission layer address information from the S-eNB so as to establish a user plane transmission channel between the PCell and the SCell under the control of the S-eNB.

The method specifically comprises the following steps:

the method comprises the steps that S-eNB sends a carrier aggregation addition request response message to P-eNB, and the carrier aggregation addition request response message carries control surface information used for replying SCell addition requests, such as cell information of one or more than one added SCell, cell information of PCell and the like; and fourth transport layer address information. Wherein the content of the first and second substances,

the fourth transport layer address information includes one or more fourth transport layer addresses, and cell identifications of scells uniquely corresponding to the fourth transport layer addresses under the jurisdiction of the S-eNB. Wherein the content of the first and second substances,

and the fourth transmission layer address is used for the S-eNB to manage the only corresponding SCell to receive the user plane data sent by the P-eNB, and the only corresponding cell is one SCell in the one or more SCells which are allowed to be added in the SCell addition request response message.

Further, the method further comprises: and modifying and/or deleting a transmission channel between the PCell and the SCell under the control of the S-eNB. In particular, the amount of the solvent to be used,

modifying a transmission channel between the PCell and the SCell under the jurisdiction of the S-eNB comprises:

first, the P-eNB transmits a carrier aggregation Modification Request (Request) message, which may be a SeNB Modification Request message (SeNB Modification Request), to the S-eNB. The third transport layer address information is carried in the SeNB modification request message. Wherein the content of the first and second substances,

the third transport layer address information includes a list of one or more third transport layer addresses that need to be modified, and cell identities of scells uniquely corresponding to the third transport layer addresses under the jurisdiction of the S-eNB.

Wherein the content of the first and second substances,

and the third transmission layer address is used for the PCell to receive user plane data sent by the only corresponding SCell under the jurisdiction of the S-eNB.

Then, the S-eNB sends a carrier aggregation Modification Request response message, which may be a SeNB Modification Request response message (SeNB Modification Request acknowledgement), to the P-eNB. And carrying fourth transport layer address information in the SeNB modification request response message. Wherein the content of the first and second substances,

the fourth transport layer address information includes a list of one or more fourth transport layer addresses that need to be modified, and cell identities of scells uniquely corresponding to the fourth transport layer addresses under the jurisdiction of the S-eNB. And the fourth transmission layer address is used for receiving user plane data sent by the PCell by the only corresponding SCell under the jurisdiction of the S-eNB.

Alternatively, the first and second electrodes may be,

firstly, an S-eNB sends a carrier aggregation Modification request (Required) message, such as a SeNB Modification request message (SeNB Modification Required), to a P-eNB, wherein the carrier aggregation Modification request message carries fourth transport layer address information; wherein the content of the first and second substances,

Then, the S-eNB receives a carrier aggregation Modification request response message, such as an SeNB Modification confirmation message (SeNB Modification confirm), from the P-eNB, where the carrier aggregation Modification request response message carries third transport layer address information. Wherein the content of the first and second substances,

the third transport layer address information includes a list of one or more third transport layer addresses that need to be modified, and cell identities of scells uniquely corresponding to the third transport layer addresses under the jurisdiction of the S-eNB. And the third transmission layer address is used for the PCell to receive user plane data sent by the SCell managed by the S-eNB and uniquely corresponding to the SCell.

Deleting a transmission channel between the PCell and the SCell under the jurisdiction of the S-eNB comprises the following steps:

the P-eNB sends a carrier aggregation Release Request message, which may be a SeNB Release Request message (SeNB Release Request), to the S-eNB. The third transport layer address information is carried in the SeNB release request message. In this case, the SeNB does not need to reply, and the deletion may be performed directly. Wherein the content of the first and second substances,

the third transmission layer address information comprises a list of one or more third transmission layer addresses needing to be deleted, and cell identifications of the SCells uniquely corresponding to the third transmission layer addresses under the control of the S-eNB. And the third transport layer address layer is used for the PCell to receive user plane data sent by a cell uniquely corresponding to the PCell under the jurisdiction of the S-eNB.

Alternatively, the first and second electrodes may be,

firstly, the S-eNB sends a carrier aggregation release request message such as a SeNB release request message (SeNBRelease Required) to the P-eNB, and the carrier aggregation release request message carries fourth transport layer address information to be deleted; wherein the content of the first and second substances,

the fourth transmission layer address information comprises a list of one or more fourth transmission layer addresses needing to be deleted, and cell identifications of the SCells uniquely corresponding to the fourth transmission layer addresses under the control of the S-eNB. And the fourth transmission layer address is used for receiving user plane data sent by the PCell by the only corresponding SCell under the jurisdiction of the S-eNB.

Then, the S-eNB receives a carrier aggregation Release request response message, such as an SeNB Release Confirm message (SeNB Release Confirm), returned from the P-eNB, where the carrier aggregation Release request response message carries third transport layer address information that needs to be deleted. Wherein the content of the first and second substances,

the third transport layer address information comprises a list of one or more third transport layer addresses approved for deletion, and cell identifications of the scells uniquely corresponding to the third transport layer addresses under the jurisdiction of the S-eNB. And the third transport layer address layer is used for the PCell to receive user plane data sent by a cell uniquely corresponding to the PCell under the jurisdiction of the S-eNB.

Based on the user plane transmission channel processing method of the invention, the method of the invention also comprises the following steps: and transmitting data on the established user plane transmission channel. Wherein the content of the first and second substances,

the transmitted data has a certain data format, and the user plane data packet of the data format carries UE identification information, and/or channel information or identification, and/or service type information or identification.

The UE identification information, the channel information or the identifier, and the service type information or the identifier may be carried by an extended header of a GPRS tunneling Protocol-User Plane (GTP-U).

Table 1 shows an implementation of the GTP-U extension packet header.

TABLE 1

In table 1, the first byte indicates the length of the extension packet header in units of 4 bytes, i.e., 0X01 indicates the length of 4 bytes and 0X02 indicates the length of 8 bytes. The second byte and the third byte are actual contents of the extension packet header, and in this embodiment, may be identification information, channel information, and/or service type information of the UE.

The type of the extension header is shown in table 2.

TABLE 2

In addition to the extension header type specified in table 2, the rest may be used to indicate whether the actual content of the extension header includes the identification information of the UE, channel information and/or service type information.

The process of the present invention is described in detail below with reference to specific examples.

Fig. 3 is a schematic flow chart of a first embodiment of establishing a user plane transmission channel according to the present invention, where the embodiment describes: at the same time of initially establishing the X2 interface, a transmission channel is established between cells of any two base stations that can configure carrier aggregation with each other, as shown in fig. 3, including:

step 300: the first eNB sends a transport channel Setup request message, which may be an X2 Setup request message (X2 Setup Requst), to the second eNB. The transmission channel establishment request message carries information of one or more cells managed by the first eNB, such as Cell ID, PCI, and the like.

Step 301: the second eNB transmits a first transport channel Setup Response message, which may be an X2 Setup Response message (X2 Setup Response), to the first eNB. The first transmission channel establishment response message carries information of one or more cells under the control of the second eNB, such as Cell ID, PCI and the like; and second transport layer address information. Wherein the content of the first and second substances,

the second transport layer address is used for the cell uniquely corresponding to the second eNB to receive the user plane data sent by the cell uniquely corresponding to the first eNB, and may be a GTP-U tunnel endpoint address (GTP-U TEID).

Step 302: the first eNB sends a second transmission channel establishment response message to the second eNB. And the second transmission channel establishment response message carries the first transmission layer address information. Wherein the content of the first and second substances,

Fig. 4 is a schematic flow chart of a second embodiment of establishing a user plane transmission channel according to the present invention, where the embodiment describes: after the X2 interface is initially established, adding, modifying, and/or deleting transmission channels between cells of any two base stations that can configure carrier aggregation with each other, as shown in fig. 4, includes:

step 400: the first eNB sends a transmission channel modification request message to the second eNB.

In this step, the transmission channel modification request message may be an eNB configuration update message (eNB configuration update). Wherein, the transmission channel modification request message carries information of one or more than one newly added cells under the control of the first eNB, such as Cell ID, PCI and the like; and first transport layer address information that needs to be added, modified and/or deleted. Wherein the content of the first and second substances,

Step 401: the second eNB sends a transmission channel modification response message to the first eNB.

In this step, the transmission channel modification response message may be an eNB configuration Update response message (eNB configuration Update acknowledgement), which carries second transport layer address information that needs to be added, modified, and/or deleted. Wherein the content of the first and second substances,

Fig. 5 is a schematic flow chart of a third embodiment of establishing a user plane transmission channel according to the present invention, where the embodiment describes: when configuring carrier aggregation for a UE, a master eNB initiates a process of adding and/or modifying an inter-cell transmission channel, as shown in fig. 5, including:

step 500: the master base station transmits a carrier aggregation Addition Request message, which may be an SeNB Addition Request message (SeNB Addition Request), to the secondary base station. The system comprises a base station, a base station and a base station, wherein the base station carries control plane signaling used for carrier aggregation addition, such as cell information of one or more SCells needing to be added, cell information of a PCell, radio resource configuration information, C-RNTI information and the like; and third transport layer address information needs to be added and/or modified.

Step 501: the assisting base station sends a carrier aggregation Addition response message to the master base station, where the carrier aggregation Addition response message may be a SeNB Addition Request response message (SeNB Addition Request acknowledgement).

Carrying control plane information used for replying the carrier aggregation addition request, such as cell information of one or more SCells and cell information of a PCell which are added in the same way, and the like in the carrier aggregation addition response message; and adding and/or modifying fourth transport layer address information.

Fig. 6 is a schematic flow chart of a first embodiment of modification of a user plane transmission channel according to the present invention, where the embodiment describes: when modifying the carrier aggregation configuration of the UE, the master eNB initiates a process of modifying an inter-cell transmission channel, as shown in fig. 6, including:

step 600: the master base station sends a carrier aggregation Modification Request message to the secondary base station, where the carrier aggregation Modification Request message may be a SeNB Modification Request message (SeNB Modification Request) and carries third transport layer address information in the carrier aggregation Modification Request message.

Step 601: the assisting base station sends a carrier aggregation Modification request response message to the master base station, where the carrier aggregation Modification request response message may be an SeNB Modification request response message (SeNB Modification request acknowledgement), and the carrier aggregation Modification request response message carries fourth transport layer address information.

Fig. 7 is a flowchart illustrating a second embodiment of the modification of the user plane transmission channel according to the present invention, where the embodiment describes: this embodiment describes: when modifying the carrier aggregation configuration of the UE, assisting the eNB to initiate a process of modifying an inter-cell transmission channel, as shown in fig. 7, includes:

step 700: the assisting base station sends a carrier aggregation Modification request message to the master base station, where the carrier aggregation Modification request message may be a SeNB Modification request message (SeNB Modification Required), and the carrier aggregation Modification request message carries fourth transport layer address information that needs to be modified.

Step 701: the master base station sends a carrier aggregation Modification request response message to the secondary base station, where the carrier aggregation Modification request response message may be an SeNB Modification acknowledgement message (SeNB Modification confirm), and the carrier aggregation Modification request response message carries third transport layer address information to be modified.

Fig. 8 is a schematic flow chart of a third embodiment of the modification of the user plane transmission channel in the present invention, and the embodiment describes: the process of deleting one or more transmission channels initiated at the master base station, as shown in fig. 8, includes:

step 800: the master base station sends a carrier aggregation Release Request message, which may be an SeNB Release Request message (SeNB Release Request), to the secondary base station.

And the carrier aggregation release request message carries the third transport layer address information needing to be deleted.

Fig. 9 is a schematic flow chart of a fourth embodiment of the modification of the user plane transmission channel in the present invention, and the embodiment describes: the process of deleting one or more transmission channels initiated at the assisting base station, as shown in fig. 9, includes:

step 900: the auxiliary base station sends a carrier aggregation Release request message to the master base station, where the carrier aggregation Release request message may be a SeNB Release request message (SeNB Release Required), and carries fourth transport layer address information that needs to be deleted.

Step 901: the master base station sends a carrier aggregation Release request acknowledgement message to the secondary base station, where the carrier aggregation Release request acknowledgement message may be an SeNB Release acknowledgement message (SeNB Release Confirm), and carries third transport layer address information that needs to be deleted.

Fig. 10 is a schematic diagram of an architecture for establishing a user plane transmission channel between base stations according to the present invention, as shown in fig. 10, wherein a first base station includes a first processing module and a first establishing module; wherein the content of the first and second substances,

the first processing module is used for requesting the second base station to establish a transmission channel and transmitting the information of one or more cells managed by the base station to the second base station; receiving a first transmission channel establishment response which is returned from the second base station and carries one or more cell information and second transmission layer address information managed by the second base station;

Wherein the first processing module is further configured to: and adding, modifying and/or deleting the established user plane transmission channel between the cells governed by the second base station. Specifically, the method comprises the following steps:

transmitting a transmission channel modification request message to the second base station, wherein the transmission channel modification request message carries first transmission layer address information; further, the information of one or more newly added, modified and/or deleted cells managed by the base station to which the first processing module belongs may also be carried;

and receiving a transmission channel modification request response message from the second base station, wherein the transmission channel modification request response message carries second transmission layer address information.

As shown in fig. 10, the second base station includes a second processing module, a second establishing module, wherein,

wherein the content of the first and second substances,

the first transport layer address information includes: one or more than one first transmission layer address added, modified or deleted, and the cell identifier of the cell uniquely corresponding to the first transmission layer address under the jurisdiction of the first eNB and the cell identifier of the cell uniquely corresponding under the jurisdiction of the second eNB; the first transmission layer address is or was used for the cell uniquely corresponding to the first eNB to receive the user plane data sent by the cell uniquely corresponding to the second eNB;

the second transport layer address information includes: one or more than one added, modified or deleted second transmission layer addresses and cell identifications of the cells which are uniquely corresponding to the second transmission layer addresses under the jurisdiction of the first eNB and cell identifications of the cells which are uniquely corresponding under the jurisdiction of the second eNB; and the second transport layer address is or was used for the cell uniquely corresponding to the second eNB to receive the user plane data sent by the cell uniquely corresponding to the first eNB.

The first base station and the second base station shown in fig. 10 may be simultaneously provided in the same base station.

Fig. 11 is a schematic diagram of an architecture for establishing a user plane transmission channel between a master base station and an auxiliary base station according to the present invention, as shown in fig. 11, wherein the master base station includes a third processing module and a third establishing module; wherein the content of the first and second substances,

Wherein the third processing module is specifically configured to:

Wherein the third processing module is further configured to: and modifying and/or deleting a user plane transmission channel between the PCell under the control of the master control base station and the SCell under the auxiliary base station. In particular, among others, the use of,

the third processing module specifically modifies a user plane transmission channel between the PCell managed by the master control base station to which the third processing module belongs and the SCell under the secondary base station, including:

and receiving a carrier aggregation modification request response message from the auxiliary base station, wherein the carrier aggregation modification request response message carries fourth transport layer address information agreeing to modification.

Alternatively, the first and second electrodes may be,

The deleting, by the third processing module, the user plane transmission channel between the PCell managed by the master control base station to which the third processing module belongs and the SCell under the secondary base station specifically includes:

alternatively, the first and second electrodes may be,

the master base station to which the third processing module belongs receives a carrier aggregation release request message from the auxiliary base station, and the fourth transport layer address information to be deleted is carried in the carrier aggregation release to-be-deleted message;

and the master control base station to which the third processing module belongs returns a carrier aggregation release request response message to the auxiliary base station, and the carrier aggregation release request response message carries third transport layer address information needing to be deleted.

As shown in fig. 11, the assisting base station includes a fourth processing module and a fourth establishing module; wherein the content of the first and second substances,

Wherein, the fourth processing module is specifically configured to:

sending a carrier aggregation addition request message to the master base station, wherein the carrier aggregation addition request message carries: control plane signaling for carrier aggregation addition, and fourth transport layer address information; and receiving a carrier aggregation addition request response message from the master control base station, wherein the carrier aggregation addition request response message carries control plane information and third transmission layer address information which are used for replying a fourth processing module for carrier aggregation addition to modify a user plane transmission channel between an SCell (secondary cell) under the control of the auxiliary base station to which the fourth processing module belongs and a Pcell under the control of the master control base station, wherein the user plane transmission channel specifically comprises the request.

Wherein, the fourth processing module is further configured to: and modifying and/or deleting a user plane transmission channel between the SCell under the control of the self auxiliary base station and the Pcell under the control of the main control base station. In particular, among others, the use of,

the fourth processing module specifically modifies a user plane transmission channel between the SCell managed by the auxiliary base station to which the fourth processing module belongs and the Pcell managed by the master base station, and includes:

and returning a carrier aggregation modification request response message to the master control base station, wherein the carrier aggregation modification request response message carries fourth transport layer address information which agrees to modification/deletion.

Alternatively, the first and second electrodes may be,

The deleting, by the fourth processing module, the user plane transmission channel between the SCell managed by the auxiliary base station to which the fourth processing module belongs and the Pcell managed by the master base station specifically includes:

alternatively, the first and second electrodes may be,

the auxiliary base station to which the fourth processing module belongs sends a carrier aggregation release request message to the master base station, and the message to be removed in carrier aggregation release carries fourth transport layer address information to be deleted;

Wherein the content of the first and second substances,

the third transport layer address information includes: one or more added, modified or deleted third transmission layer addresses and cell identifications of the SCell uniquely corresponding to the third transmission layer addresses under the jurisdiction of the S-eNB; the third transmission layer address is or was used for the PCell to receive user plane data sent by the SCell managed by the S-eNB;

the fourth transport layer address information includes: one or more added, modified or deleted fourth transmission layer addresses and cell identifications of the SCell uniquely corresponding to the fourth transmission layer addresses under the jurisdiction of the S-eNB; and the fourth transmission layer address is or was used for the S-eNB to manage the uniquely corresponding SCell to receive the user plane data transmitted by the PCell.

The master base station and the secondary base station shown in fig. 11 may be simultaneously provided in the same base station.

The above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing a user plane transmission channel includes:

the interaction between the first evolved node B eNB and the second eNB through the cell information and the transport layer address information comprises:

the first eNB returns first transmission layer address information to the second eNB so as to establish a user plane transmission channel between cells under the control of the first eNB and the second eNB;

adding, modifying and/or deleting a user plane transmission channel between the first eNB and the second eNB;

the user plane transmission channel is used for carrying user plane data transmission of one or more UEs which respectively configure corresponding cells into a primary cell PCell and a secondary cell SCell;

the first transport layer address information includes: one or more added, modified or deleted first transport layer addresses, and cell identities of cells uniquely corresponding to the first transport layer addresses under the jurisdiction of the first eNB and cell identities of cells uniquely corresponding under the jurisdiction of the second eNB; the first transmission layer address is used or used for the cell which is uniquely corresponding and is managed by the first eNB to receive the user plane data which is sent by the cell which is uniquely corresponding and is managed by the second eNB;

2. The method of claim 1, wherein adding, modifying, and/or deleting the transmission channel between the first eNB and the second eNB comprises:

3. The method according to claim 2, wherein the transmission channel modification request message further carries: information of one or more added, and/or modified, and/or deleted cells under the first eNB jurisdiction.

4. The method as claimed in claim 1, wherein the receiving, by the first eNB, the one or more cell information and the second transport layer address information under the control of the second eNB from the second eNB comprises:

5. The method of claim 1, wherein the first eNB returning the first transport layer address information to the second eNB comprises:

6. The method of claim 1, wherein the first eNB is a master control base station P-eNB; the second eNB is an auxiliary base station S-eNB;

the P-eNB receives cell information and fourth transmission layer address information of one or more SCells approved to be added from the S-eNB so as to establish a user plane transmission channel between the PCell and the SCell under the control of the S-eNB;

wherein the third transport layer address information comprises: one or more added, modified or deleted third transmission layer addresses, and cell identities of the scells uniquely corresponding to the third transmission layer addresses under the jurisdiction of the S-eNB; the third transmission layer address is or was used for the PCell to receive user plane data sent by the SCell managed by the S-eNB;

7. The method of claim 6, further comprising: and modifying and/or deleting a user plane transmission channel between the PCell and the SCell under the S-SeNB.

8. The method according to claim 7, wherein the modifying the transmission channel between the SCell under PCell and S-SeNB comprises:

9. The method according to claim 7, wherein the modifying the transmission channel between the SCell under PCell and S-SeNB comprises:

10. The method according to claim 7, wherein the deleting the transmission channel between the PCell and the SCell under the S-SeNB comprises:

11. The method according to claim 7, wherein the deleting the transmission channel between the PCell and the SCell under the S-SeNB comprises:

the S-eNB sends a carrier aggregation release request message to the P-eNB, and the carrier aggregation release request message carries fourth transport layer address information needing to be deleted;

12. The method for processing the user plane transmission channel according to claim 6 or 7, wherein the P-eNB requests the S-eNB to establish the transmission channel, and transfers the cell information and the third transmission layer address information of the one or more scells to be added to the S-eNB, including:

13. The method of claim 6 or 7, wherein the P-eNB receiving cell information and fourth transmission layer address information of one or more SCells approved for addition from the S-eNB comprises:

14. The method as claimed in claim 1 or 6, wherein the method further comprises: and sending data on the established user plane transmission channel.

15. The method according to claim 14, wherein the user plane data packet in the data format of the transmitted data carries: user equipment UE identity information, and/or channel information or identity, and/or service type information or identity.

16. The method of claim 15, wherein the UE identity information, the channel information or the identity, and the service type information or the identity are carried in a GPRS tunneling protocol-user plane GTP-U extension packet header.

17. A base station is characterized by comprising a first processing module and a first establishing module; wherein the content of the first and second substances,

the first processing module is used for requesting the second base station to establish a transmission channel and transmitting the information of one or more cells managed by the base station to the second base station; receiving a first transmission channel establishing response which is returned from the second base station and carries one or more cell information and second transmission layer address information managed by the second base station;

the first establishing module is used for returning a second establishing transmission channel response carrying the first transmission layer address information to the second base station so as to establish a user plane transmission channel between cells administered by the second base station;

the first transport layer address information includes: one or more than one added, modified or deleted first transmission layer addresses, and cell identifications of cells which are uniquely corresponding to the first transmission layer addresses under the jurisdiction of a first eNB and cell identifications of cells which are uniquely corresponding under the jurisdiction of a second eNB; wherein, the first transmission layer address is used or used for the cell which is uniquely corresponding under the jurisdiction of the first eNB to receive the user plane data which is sent by the cell which is uniquely corresponding under the jurisdiction of the second eNB;

18. The base station of claim 17, wherein the first processing module is further configured to: and adding, modifying and/or deleting the established user plane transmission channel between the cells governed by the second base station.

19. The base station of claim 18, wherein the first processing module is further specifically configured to: transmitting a transmission channel modification request message to the second base station, wherein the transmission channel modification request message carries first transmission layer address information needing to be modified;

20. The base station of claim 19, wherein the transmission channel modification request message further carries: the information of one or more added, modified and/or deleted cells managed by the base station to which the first processing module belongs.

21. A base station, comprising a second processing module, a second establishing module, wherein,

the second processing module is used for receiving a request for establishing a transmission channel from the first base station, wherein the request carries one or more cell information managed by the first base station; returning a first transmission channel establishing response carrying one or more cell information and second transmission layer address information under the control of the base station to which the first base station belongs to the first base station;

wherein the content of the first and second substances,

22. A base station comprising the base station of any one of claims 17 to 20 and the base station of claim 21.

23. A master control base station is characterized by comprising a third processing module and a third establishing module; wherein the content of the first and second substances,

the third establishing module is used for establishing a user plane transmission channel between a PCell managed by the master control base station and an SCell managed by the auxiliary base station;

the third transport layer address information includes: one or more added, modified or deleted third transmission layer addresses, and cell identities of the scells uniquely corresponding to the third transmission layer addresses under the jurisdiction of the S-eNB; the third transmission layer address is or was used for the PCell to receive user plane data sent by the SCell managed by the S-eNB;

24. The master base station of claim 23, wherein the third processing module is further configured to: and modifying and/or deleting a user plane transmission channel between the PCell managed by the master control base station and the SCell managed by the auxiliary base station.

25. The primary control base station according to claim 24, wherein the modifying, by the third processing module, the user plane transmission channel between the PCell managed by the primary control base station and the SCell under the secondary base station specifically includes:

alternatively, the first and second electrodes may be,

26. The enb according to claim 24, wherein the deleting, by the third processing module, the user plane transmission channel between the PCell managed by the third processing module and the SCell under the secondary base station specifically includes:

alternatively, the first and second electrodes may be,

27. The enb according to claim 23, wherein the third processing module is specifically configured to:

28. An assisting base station is characterized by comprising a fourth processing module and a fourth establishing module; wherein the content of the first and second substances,

the fourth establishing module is used for establishing a user plane transmission channel between the SCell under the jurisdiction of the auxiliary base station to which the establishing module belongs and the PCell under the jurisdiction of the master control base station;

29. The assisting base station of claim 28, wherein the fourth processing module is further configured to: and modifying and/or deleting a user plane transmission channel between the SCell under the control of the auxiliary base station and the Pcell under the control of the main control base station.

30. The enb according to claim 29, wherein the fourth processing module modifies a user plane transmission channel between an SCell under the jurisdiction of the enb itself and a Pcell under the jurisdiction of the primary base station specifically includes:

returning a carrier aggregation modification request response message to the master control base station, wherein the carrier aggregation modification request response message carries fourth transport layer address information which agrees to modification;

alternatively, the first and second electrodes may be,

31. The enb according to claim 29, wherein the deleting, by the fourth processing module, the user plane transmission channel between the SCell managed by the enb to which the fourth processing module belongs and the Pcell managed by the primary base station specifically includes:

alternatively, the first and second electrodes may be,

32. The assisting base station of claim 28, wherein the fourth processing module is specifically configured to:

33. A base station comprising the master base station of any one of claims 23 to 27 and the auxiliary base station of any one of claims 28 to 32.

34. A computer-readable storage medium storing computer-executable instructions for performing the user plane transmission channel processing method of any one of claims 1 to 16.