CN109275155B - Information transmission method, terminal, base station and computer readable storage medium - Google Patents

Information transmission method, terminal, base station and computer readable storage medium Download PDF

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Publication number
CN109275155B
CN109275155B CN201710585027.5A CN201710585027A CN109275155B CN 109275155 B CN109275155 B CN 109275155B CN 201710585027 A CN201710585027 A CN 201710585027A CN 109275155 B CN109275155 B CN 109275155B
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senb
information
control channel
uplink
private
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CN109275155A (en
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旷婧华
邓伟
江天明
张龙
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

An information transmission method, a terminal, a base station and a computer readable storage medium, the information transmission method for the MeNB under the dual connectivity network comprises the following steps: when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the MeNB receives uplink feedback information or uplink control channel information which is sent by the terminal and corresponds to the SeNB, processes the uplink feedback information or the uplink control channel information and sends the processed uplink feedback information or the uplink control channel information to the SeNB; when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the MeNB receives downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal, processes the downlink feedback information or the downlink control information and sends the processed downlink feedback information or the downlink control information to the terminal, and therefore normal transmission of a data link between the terminal and the SeNB is guaranteed.

Description

Information transmission method, terminal, base station and computer readable storage medium
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an information transmission method, a terminal, a base station, and a computer-readable storage medium.
Background
In an existing LTE (Long Term Evolution) system, each eNB (evolved Node B) and a UE (user equipment) maintain a single control plane and data plane connection, in order to improve the UE speed, a dual connectivity technology is introduced in LTE R12 version, that is, the UE simultaneously maintains data connection with two enbs, which are respectively called as a MeNB (Master eNB) and a SeNB (Secondary eNB, Secondary base station), and on the control plane, the UE only maintains connection with the MeNB.
In the 5G NR system, the UE may even maintain dual connectivity with base stations of different air interfaces. For example, the MeNB and the SeNB for dual connectivity may be an LTE (LTE system evolution air interface) base station eNB and a 5G base station gNB, respectively, and the frequency bands used by the MeNB and the SeNB may also be different. In order to ensure connectivity of RRC (Radio Resource Control) connection for a Control plane, generally, when a difference between frequency bands used by the MeNB and the SeNB is large, an eNB or a gNB in a low frequency band is used as the MeNB.
When the terminal completes access in the MeNB and performs data transmission with the MeNB and the SeNB in a dual connection manner, when the MeNB uses a low frequency band, such as 900M, and the SeNB uses a high frequency band, such as 3.5G, it may happen that when the UE moves to the edge of the cell, coverage of the uplink of the SeNB connection is insufficient (for example, the SeNB cannot receive the uplink feedback signal sent by the UE), but the downlink data link can still be transmitted normally. Or, the UE may not receive the downlink feedback signal sent by the SeNB, but the uplink data link may still be transmitted normally.
When the uplink of the SeNB has a problem of insufficient coverage, the uplink control channel information and the uplink feedback information corresponding to the SeNB cannot be normally transmitted, which also directly results in that the downlink traffic shared channel of the SeNB cannot perform data transmission. At this time, the UE only performs downlink service transmission with the MeNB, and the downlink transmission rate of the UE cannot be increased. Similarly, when the UE cannot receive the downlink feedback signal sent by the SeNB, the uplink between the UE and the SeNB cannot perform data transmission directly, and the uplink transmission rate of the UE cannot be increased.
Disclosure of Invention
In view of the above, the present invention provides an information transmission method, a terminal, a base station, and a computer-readable storage medium, which are used to solve the problem that when a feedback link or a control channel link between a UE and an SeNB is disconnected, data transmission cannot be performed, so that a transmission rate of the UE is reduced.
In order to solve the above technical problem, the present invention provides an information transmission method applied to an MeNB in a dual connectivity network, including:
when an uplink feedback link or an uplink control channel link between a terminal and a SeNB is broken, the MeNB receives uplink feedback information or uplink control channel information which is sent by the terminal and corresponds to the SeNB, processes the received uplink feedback information or uplink control channel information and sends the processed uplink feedback information or uplink control channel information to the SeNB; or
When a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the MeNB receives downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal, processes the received downlink feedback information or downlink control information and sends the processed downlink feedback information or downlink control information to the terminal.
Preferably, the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries an identifier of the SeNB;
the step of processing the received uplink feedback information or uplink control channel information and sending the processed uplink feedback information or uplink control channel information to the SeNB includes:
after receiving the uplink feedback information or the uplink control channel information, the MAC layer or the RLC layer of the MeNB removes a private MAC header or a private RLC header of the uplink feedback information or the uplink control channel information, and obtains an identifier of the SeNB carried in the private MAC header or the private RLC header;
the MeNB determines the address of the SeNB according to the identifier of the SeNB;
the MeNB loads the uplink feedback information or the uplink control channel information with the private MAC header or the private RLC header removed with a private transmission protocol header;
and the MeNB sends uplink feedback information or uplink control channel information loaded with a private transmission protocol header to the MAC layer or the RLC layer of the SeNB through the MAC layer or the RLC layer switching equipment between the MeNB and the SeNB according to the address of the SeNB.
Preferably, the uplink feedback information or the uplink control channel information is loaded with a private PDCP header, a SeNB MAC standard header, and a SeNB RLC standard header, or loaded with a private PDCP header and a SeNB RLC standard header, where the private PDCP header carries an identifier of a SeNB;
the step of processing the received uplink feedback information or uplink control channel information and sending the processed uplink feedback information or uplink control channel information to the SeNB includes:
the PDCP layer of the MeNB removes a private PDCP header of the received uplink feedback information or uplink control channel information, and acquires an identifier of the SeNB carried in the private PDCP header;
the PDCP layer of the MeNB determines the address of the SeNB according to the identification of the SeNB;
and the PDCP layer of the MeNB sends the uplink feedback information or the uplink control channel information with the removed private PDCP header to the RLC layer of the SeNB according to the address of the SeNB.
The invention also provides an information transmission method, which is applied to a terminal under the double-connection network and comprises the following steps:
when the terminal detects that an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, sending uplink feedback information or uplink control channel information corresponding to the SeNB to the MeNB; or
And when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the terminal receives downlink feedback information or downlink control information transmitted by the SeNB and transmitted by the MeNB.
Preferably, the step of sending the uplink feedback information or the uplink control channel information corresponding to the SeNB to the MeNB includes:
the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information;
the MAC layer of the terminal loads the uplink feedback information or the uplink control channel information after being packaged with a private MAC header or a private RLC header, wherein the private MAC header or the private RLC header carries the identification of the SeNB;
and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private MAC header or the private RLC header to the MeNB.
Preferably, the step of sending the uplink feedback information or the uplink control channel information corresponding to the SeNB to the MeNB includes:
the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information, wherein the encapsulated uplink feedback information or uplink control channel information comprises a SeNB MAC standard header and a SeNB RLC standard header, or comprises the SeNB RLC standard header;
the MAC layer of the terminal loads the packaged uplink feedback information or uplink control channel information into a private PDCP header, wherein the private PDCP header carries the identifier of the SeNB;
and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private PDCP header to the MeNB.
The invention also provides an information transmission method, which is applied to the SeNB under the dual connectivity network and comprises the following steps:
when an uplink feedback link or an uplink control channel link between a terminal and the SeNB is broken, the SeNB receives uplink feedback information or uplink control channel information uploaded by the terminal and transmitted through the MeNB; or alternatively
And when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the SeNB sends downlink feedback information or downlink control information corresponding to the terminal to the MeNB.
Preferably, the step of receiving, by the SeNB, the uplink feedback information or the uplink control channel information uploaded by the terminal and transmitted through the MeNB includes:
when the MAC layer or the RLC layer of the SeNB receives uplink feedback information or uplink control channel information loaded with a private transmission protocol header and sent by the MAC layer or the RLC layer of the MeNB, the private transmission protocol header is removed, and the required uplink feedback information or uplink control channel information is obtained; or
And when the RLC layer of the SeNB receives the uplink feedback information or the uplink control channel information sent by the PDCP layer of the MeNB, the RLC layer and the MAC layer of the SeNB sequentially process the received uplink feedback information or the received uplink control channel information to obtain the required uplink feedback information or the required uplink control channel information.
The present invention also provides a MeNB comprising:
the receiver is used for receiving uplink feedback information or uplink control channel information which is sent by a terminal and corresponds to an SeNB (evolved node B) when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken under a dual-connection network; or receiving downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken;
the processor is used for processing the received uplink feedback information or uplink control channel information; or, processing the received downlink feedback information or downlink control information;
a transmitter, configured to send the processed uplink feedback information or uplink control channel information to the SeNB; or, the processed downlink feedback information or downlink control information is sent to the terminal.
Preferably, the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries an identifier of the SeNB;
the processor is further configured to, after receiving the uplink feedback information or the uplink control channel information, remove a private MAC header or a private RLC header of the uplink feedback information or the uplink control channel information, and obtain an identifier of the SeNB carried in the private MAC header or the private RLC header; determining the address of the SeNB according to the identifier of the SeNB; loading the uplink feedback information or uplink control channel information with the private MAC header or the private RLC header removed with a private transmission protocol header;
the sender is further configured to send, according to the address of the SeNB, uplink feedback information or uplink control channel information loaded with a private transport protocol header to the MAC layer or the RLC layer of the SeNB through the MAC layer or the RLC layer switching device between the MeNB and the SeNB.
Preferably, the uplink feedback information or the uplink control channel information is loaded with a private PDCP header, a SeNB MAC standard header, and a SeNB RLC standard header, or is loaded with a private PDCP header and a SeNB RLC standard header, and the private PDCP header carries an identifier of a SeNB;
the processor is further configured to remove a private PDCP header of the received uplink feedback information or uplink control channel information, and acquire an identifier of the SeNB carried in the private PDCP header; determining the address of the SeNB according to the identifier of the SeNB; and sending the uplink feedback information or the uplink control channel information with the removed private PDCP header to an RLC layer of the SeNB according to the address of the SeNB.
The present invention also provides a terminal, comprising:
a transmitter, configured to send, to an MeNB, uplink feedback information or uplink control channel information corresponding to an SeNB when detecting that an uplink feedback link or an uplink control channel link between the SeNB and the MeNB is broken in a dual connectivity network; or
And the receiver is used for receiving the downlink feedback information or the downlink control information transmitted by the SeNB and transmitted by the MeNB when a downlink feedback link or a downlink control channel link between the SeNB and a terminal is broken.
Preferably, the terminal further includes:
the processor is used for encapsulating the uplink feedback information or the uplink control channel information which needs to be transmitted to the SeNB to obtain the encapsulated uplink feedback information or uplink control channel information; loading a private MAC header or a private RLC header on the packaged uplink feedback information or uplink control channel information, wherein the private MAC header or the private RLC header carries the identifier of the SeNB;
the transmitter is further configured to send uplink feedback information or uplink control channel information loaded with the private MAC header or the private RLC header to the MeNB.
Preferably, the terminal further includes:
a processor, configured to encapsulate uplink feedback information or uplink control channel information that needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information, where the encapsulated uplink feedback information or uplink control channel information includes a SeNB MAC standard header and a SeNB RLC standard header, or includes a SeNB RLC standard header; loading the encapsulated uplink feedback information or uplink control channel information into a private PDCP header, wherein the private PDCP header carries the identifier of the SeNB;
the transmitter is further configured to send uplink feedback information or uplink control channel information loaded with the private PDCP header to the MeNB.
The present invention also provides a SeNB, comprising:
a receiver, configured to receive uplink feedback information or uplink control channel information uploaded by a terminal via an MeNB when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken in a dual connectivity network; or alternatively
A transmitter, configured to send downlink feedback information or downlink control information corresponding to the terminal to the MeNB when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken.
Preferably, the SeNB further comprises:
the processor is configured to remove the private transmission protocol header when receiving uplink feedback information or uplink control channel information loaded with the private transmission protocol header and sent by the MAC layer or the RLC layer of the MeNB, so as to obtain the required uplink feedback information or uplink control channel information; or
And the processor is used for processing the uplink feedback information or the uplink control channel information sent by the PDCP layer of the MeNB to obtain the required uplink feedback information or the required uplink control channel information.
The invention also provides an MeNB comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor implements the information transmission method applied to the MeNB when executing the program.
The invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; wherein the processor implements the information transmission method applied to the terminal when executing the program.
The invention also provides a SeNB comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor implements the method applied to SeNB information transmission when executing the program.
The present invention also provides a computer-readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the steps in the above-mentioned information transmission method.
The technical scheme of the invention has the following beneficial effects:
when an uplink/downlink feedback link or an uplink/downlink control channel link between the terminal and the SeNB is broken, uplink/downlink feedback information or uplink/downlink control information between the terminal and the SeNB can be transmitted through the MeNB, so that normal transmission of a data link between the terminal and the SeNB is ensured, and the transmission rate of the terminal is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an information transmission method according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating an information transmission method according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating an information transmission method according to a third embodiment of the present invention;
fig. 5 is a flowchart illustrating an information transmission method according to a fourth embodiment of the present invention;
fig. 6 is a flowchart illustrating an information transmission method according to a fifth embodiment of the present invention;
fig. 7 is a flowchart illustrating an information transmission method according to a sixth embodiment of the present invention;
fig. 8 is a flowchart illustrating an information transmission method according to a seventh embodiment of the present invention;
fig. 9 is a flowchart illustrating an information transmission method according to an eighth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of an architecture of a communication system to which an embodiment of the present invention is applied, in which a terminal is capable of simultaneously maintaining data connection (also referred to as dual connectivity) with two enbs, which are respectively referred to as a MeNB (Master eNB) and a SeNB (Secondary eNB).
The MeNB and the SeNB may be different types of base stations, for example, one is an LTE (LTE system evolution air interface) base station eNB and one is a 5G base station gNB, and frequency bands used by the MeNB and the SeNB may also be different.
In order to ensure connectivity of RRC (Radio Resource Control) connection, when a difference between frequency bands used by the MeNB and the SeNB is large, a low-frequency band base station is used as the MeNB, and a high-frequency band base station is used as the SeNB, for example, the MeNB uses a low frequency band such as 900M, and the SeNB uses a high frequency band such as 3.5G.
When the terminal completes access in the MeNB and performs data transmission with the MeNB and the SeNB in a dual-connection or multi-connection manner, a situation may occur that when the terminal moves to a cell edge, the SeNB has insufficient coverage (for example, the SeNB cannot receive an uplink feedback signal sent by the terminal), but a downlink data link can still transmit normally. Or, the terminal may not receive the downlink feedback signal sent by the SeNB, but the uplink data link may still be transmitted normally.
In order to solve the problem that when an uplink/downlink feedback link or an uplink/downlink control channel link between a terminal and an SeNB is disconnected, data transmission cannot be performed, so that the transmission rate of the terminal is reduced, an embodiment of the present invention provides an information transmission method, which is applied to an MeNB under a dual connectivity network, and includes:
when an uplink feedback link or an uplink control channel link between a terminal and a SeNB is broken, the MeNB receives uplink feedback information or uplink control channel information which is sent by the terminal and corresponds to the SeNB, processes the received uplink feedback information or uplink control channel information and sends the processed uplink feedback information or uplink control channel information to the SeNB; or
When a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the MeNB receives downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal, processes the received downlink feedback information or downlink control information and sends the processed downlink feedback information or downlink control information to the terminal.
According to the information transmission method provided by the embodiment of the invention, when the uplink/downlink feedback link or the uplink/downlink control channel link between the terminal and the SeNB is broken, the uplink/downlink feedback information or the uplink/downlink control information between the terminal and the SeNB can be transmitted through the MeNB, so that the normal transmission of the data link between the terminal and the SeNB is ensured, and the transmission rate of the terminal is improved.
In the embodiment of the present invention, the uplink feedback link refers to an uplink feedback link of the terminal for the downlink service, and the downlink feedback link refers to a downlink feedback link of the SeNB for the uplink service.
In the embodiment of the present invention, the uplink control channel information may be CQI (channel state information) and the like, and the uplink feedback information may be ACK/NACK feedback for downlink service transmission, or, for example, ACK/NACK feedback for TAC (timing advance command) and the like for maintaining uplink synchronization when the SeNB establishes RRC connection.
The above-described information transmission method is described in detail below based on specific embodiments.
Referring to fig. 2, fig. 2 is a flowchart illustrating an information transmission method according to an embodiment of the present invention, where an uplink feedback link or an uplink control channel link between a terminal and an SeNB is taken as an example to explain the information transmission method according to the embodiment of the present invention, and the information transmission method includes the following steps:
step 21: the method comprises the steps that an MeNB receives uplink feedback information or uplink control channel information corresponding to an SeNB, wherein the uplink feedback information or the uplink control channel information is sent by a terminal;
in the embodiment of the invention, when an uplink feedback link or an uplink control channel link between a terminal and a SeNB is broken, the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB, and loads the encapsulated uplink feedback information or uplink control channel information into a private MAC header, wherein the private MAC header carries an identifier of the SeNB, so that after receiving the uplink feedback information or the uplink control channel information, the MeNB can recognize that the uplink feedback information or the uplink control channel information is information sent to the SeNB.
Step 22: after receiving the uplink feedback information or the uplink control channel information, the MAC layer of the MeNB removes a private MAC header of the uplink feedback information or the uplink control channel information, and acquires an identifier of the SeNB carried in the private MAC header;
step 23: the MeNB determines the address of the SeNB according to the identifier of the SeNB;
step 24: the MeNB loads the uplink feedback information or the uplink control channel information with the private MAC header removed on the private transmission protocol header;
step 25: and the MeNB sends the uplink feedback information or the uplink control channel information loaded with the private transmission protocol header to the MAC layer of the SeNB through the MAC layer exchange equipment between the MeNB and the SeNB according to the address of the SeNB.
The MAC layer switching device may be, for example, an ethernet switching device.
According to the information transmission method provided by the embodiment of the invention, when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the terminal can load the uplink feedback information or the uplink control channel information into the private MAC header, and the private MAC header carries the identifier of the SeNB, so that after receiving the uplink feedback information or the uplink control channel information, the MeNB can recognize that the uplink feedback information or the uplink control channel information is the information sent to the SeNB. In addition, the MeNB and the SeNB directly transmit uplink feedback information or uplink control channel information on the MAC layer, the transmission time delay is short, and the data transmission speed can be effectively improved.
Referring to fig. 3, fig. 3 is a flowchart illustrating an information transmission method according to a second embodiment of the present invention, where in the embodiment of the present invention, an uplink feedback link or an uplink control channel link between a terminal and an SeNB is taken as an example to explain the information transmission method according to the second embodiment of the present invention, and the information transmission method includes the following steps:
step 31: the method comprises the steps that an MeNB receives uplink feedback information or uplink control channel information corresponding to an SeNB, wherein the uplink feedback information or the uplink control channel information is sent by a terminal;
in the embodiment of the invention, when an uplink feedback link or an uplink control channel link between a terminal and a SeNB is broken, the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB, and loads the encapsulated uplink feedback information or uplink control channel information into a private RLC header, wherein the private RLC header carries an identifier of the SeNB, so that after receiving the uplink feedback information or the uplink control channel information, the MeNB can recognize that the uplink feedback information or the uplink control channel information is information sent to the SeNB.
Step 32: after receiving the uplink feedback information or the uplink control channel information, the RLC layer of the MeNB removes a private RLC header of the uplink feedback information or the uplink control channel information, and acquires an identifier of the SeNB carried in the private RLC header;
step 33: the MeNB determines the address of the SeNB according to the identifier of the SeNB;
step 34: the MeNB loads the uplink feedback information or the uplink control channel information with the private RLC header removed with a private transmission protocol header;
step 35: and the MeNB sends the uplink feedback information or the uplink control channel information loaded with the private transmission protocol header to the RLC layer of the SeNB through the RLC layer switching equipment between the MeNB and the SeNB according to the address of the SeNB.
The RLC layer switching device may be, for example, an ethernet switching device.
According to the information transmission method provided by the embodiment of the invention, when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the terminal can load the uplink feedback information or the uplink control channel information into the private RLC header, and the private RLC header carries the identifier of the SeNB, so that after receiving the uplink feedback information or the uplink control channel information, the MeNB can recognize that the uplink feedback information or the uplink control channel information is the information sent to the SeNB. In addition, the MeNB and the SeNB directly transmit uplink feedback information or uplink control channel information on the RLC layer, the transmission time delay is small, and the data transmission speed can be effectively improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating an information transmission method according to a third embodiment of the present invention, where the uplink feedback link or uplink control channel link between a terminal and an SeNB is broken, and the information transmission method according to the third embodiment of the present invention is described in the embodiment of the present invention, and the information transmission method includes the following steps:
step 41: the method comprises the steps that an MeNB receives uplink feedback information or uplink control channel information corresponding to an SeNB, wherein the uplink feedback information or the uplink control channel information is sent by a terminal;
in the embodiment of the invention, when an uplink feedback link or an uplink control channel link between a terminal and a SeNB is broken, the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB, wherein the encapsulated uplink feedback information or uplink control channel information comprises a SeNB MAC standard header and a SeNB RLC standard header or comprises a SeNB RLC standard header, and the encapsulated uplink feedback information or uplink control channel information is loaded with a private PDCP header which carries an identifier of the SeNB, so that after receiving the uplink feedback information or the uplink control channel information, the MeNB can recognize that the uplink feedback information or the uplink control channel information is the information transmitted to the SeNB.
Step 42: the MAC layer and the RLC layer of the MeNB sequentially process the received uplink feedback information or uplink control channel information and deliver the processed uplink feedback information or uplink control channel information to the PDCP layer of the MeNB;
in the embodiment of the present invention, in a normal case, the terminal further needs to load a standard MAC header and a standard RLC header for the uplink feedback information or the uplink control channel information, at this time, the MAC layer of the MeNB needs to remove the MAC header of the uplink feedback information or the uplink control channel information, and the RLC layer of the MeNB needs to remove the RLC header of the uplink feedback information or the uplink control channel information, and delivers the removed MAC header and the removed MAC header to the PDCP layer of the MeNB.
Step 43: the PDCP layer of the MeNB removes a private PDCP header of the received uplink feedback information or uplink control channel information, and acquires an identifier of the SeNB carried in the private PDCP header;
step 44: the MeNB determines the address of the SeNB according to the identifier of the SeNB;
step 45: and the PDCP layer of the MeNB sends the uplink feedback information or the uplink control channel information with the removed private PDCP header to the RLC layer of the SeNB according to the address of the SeNB.
Since the MeNB and the SeNB generate the forking at the PDCP layer, the PDCP layer of the MeNB may forward the uplink feedback information or the uplink control channel information to the RLC layer of the SeNB.
According to the information transmission method provided by the embodiment of the invention, when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the terminal can load the uplink feedback information or the uplink control channel information into the private PDCP header, and the private PDCP header carries the identifier of the SeNB, so that after receiving the uplink feedback information or the uplink control channel information, the MeNB can identify that the uplink feedback information or the uplink control channel information is the information sent to the SeNB. In addition, the MeNB sends uplink feedback information or uplink control channel information to the SeNB through the PDCP layer, and additional switching equipment does not need to be introduced.
The embodiment of the invention also provides an information transmission method, which is applied to a terminal under a dual-connection network and comprises the following steps:
when the terminal detects that an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, sending uplink feedback information or uplink control channel information corresponding to the SeNB to the MeNB; or
And when the downlink between the terminal and the SeNB is broken, the terminal receives downlink feedback information or downlink control information transmitted by the SeNB and transmitted by the MeNB.
According to the information transmission method provided by the embodiment of the invention, when the uplink/downlink feedback link or the uplink/downlink control channel link between the terminal and the SeNB is broken, the uplink/downlink feedback information or the uplink/downlink control information between the terminal and the SeNB can be transmitted through the MeNB, so that the normal transmission of the data link between the terminal and the SeNB is ensured, and the transmission rate of the terminal is improved.
In the embodiment of the invention, the terminal can detect whether an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken or not in various modes, for example, the terminal does not monitor uplink scheduling on a PDCCH (physical downlink control channel) within a preset time length after sending an SR (scheduling request) to the SeNB; or, the terminal estimates downlink path loss through downlink RSRP (reference signal received power), indirectly estimates uplink path loss, and the like.
The following describes an information transmission method according to an embodiment of the present invention, taking uplink feedback link or uplink control channel link disconnection between a terminal and an SeNB as an example.
Referring to fig. 5, fig. 5 is a flowchart illustrating an information transmission method according to a fourth embodiment of the present invention, where the information transmission method includes the following steps:
step 51: when the terminal detects that an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, encapsulating uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information;
specifically, the MAC layer of the terminal encapsulates uplink feedback information or uplink control channel information that needs to be transmitted to the SeNB.
The following describes information to be encapsulated, and the information to be encapsulated may include, for example, the uplink feedback information:
a) a radio frame number;
b) a UE identity, such as a C-RNTI (cell radio network temporary identity);
c) HARQ (hybrid automatic repeat request) or ARQ (automatic repeat request) process number (depending mainly on whether d) belongs to a HARQ process or to an ARQ process);
d) and uplink feedback information A/N.
Step 52: the MAC layer of the terminal loads the uplink feedback information or the uplink control channel information after being packaged into a private MAC header, wherein the private MAC header carries an identifier of the SeNB;
the identity of the SeNB may be, for example, a Cell ID of the SeNB.
The purpose of carrying the identity of the SeNB in a private MAC header is: when the MeNB receives the uplink feedback information or the uplink control channel information and removes the private MAC header, it can know that the uplink feedback information or the uplink control channel information is information to be transmitted to the SeNB.
Step 53: and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private MAC header to the MeNB.
Specifically, the terminal may send uplink feedback information or uplink control channel information loaded with the private MAC header to the MeNB through a PUSCH (physical uplink shared channel) resource of the MeNB.
According to the information transmission method provided by the embodiment of the invention, when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the terminal encapsulates the uplink feedback information or the uplink control channel information, loads the encapsulated uplink feedback information or uplink control channel information with the private MAC header, and enables the MeNB to know that the uplink feedback information or the uplink control channel information is the information to be transmitted to the SeNB when the MeNB receives the uplink feedback information or the uplink control channel information and removes the private MAC header by the private MAC header carrying the identifier of the SeNB.
Referring to fig. 6, fig. 6 is a schematic flowchart of an information transmission method according to a fifth embodiment of the present invention, where the information transmission method includes the following steps:
step 61: when the terminal detects that an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, encapsulating uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information;
specifically, the MAC layer of the terminal encapsulates uplink feedback information or uplink control channel information that needs to be transmitted to the SeNB.
The following describes information to be encapsulated, and the information to be encapsulated may include, for example, the uplink feedback information:
a) a radio frame number;
b) a UE identity, such as a C-RNTI (cell radio network temporary identity);
c) HARQ (hybrid automatic repeat request) or ARQ (automatic repeat request) process numbers (depending mainly on whether d) belongs to a HARQ process or to an ARQ process);
d) and uplink feedback information A/N.
Step 62: the MAC layer of the terminal loads the uplink feedback information or the uplink control channel information after being packaged into a private RLC header, wherein the private RLC header carries an identifier of the SeNB;
and step 63: and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private RLC header to the MeNB.
Specifically, the terminal may send the uplink feedback information or the uplink control channel information loaded with the private RLC header to the MeNB through a PUSCH resource of the MeNB.
According to the information transmission method provided by the embodiment of the invention, when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the terminal encapsulates uplink feedback information or uplink control channel information, loads the encapsulated uplink feedback information or uplink control channel information into a private RLC header, and the private RLC header carries the identifier of the SeNB, so that when the MeNB receives the uplink feedback information or the uplink control channel information and removes the private RLC header, the fact that the uplink feedback information or the uplink control channel information is the information to be transmitted to the SeNB can be known.
Referring to fig. 7, fig. 7 is a schematic flowchart of an information transmission method according to a sixth embodiment of the present invention, where the information transmission method includes the following steps:
step 71: when detecting that an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, encapsulating uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information, wherein the encapsulated uplink feedback information or uplink control channel information comprises a SeNB MAC standard header and a SeNB RLC standard header or comprises the SeNB RLC standard header;
specifically, the MAC layer of the terminal encapsulates uplink feedback information or uplink control channel information that needs to be transmitted to the SeNB.
The following describes information to be encapsulated, and taking an uplink feedback information as an example, the information to be encapsulated may include:
a) a radio frame number;
b) a UE identity, such as a C-RNTI (cell radio network temporary identity);
c) HARQ (hybrid automatic repeat request) or ARQ (automatic repeat request) process number (depending mainly on whether d) belongs to a HARQ process or to an ARQ process);
d) uplink feedback information A/N;
e) SeNB MAC standard header;
f) SeNB RLC standard header.
It should be noted that, when the terminal sends uplink feedback information and the uplink feedback information a/N belongs to ARQ a/N feedback, the MAC layer of the terminal only encapsulates the SeNB RLC standard header and does not encapsulate the SeNB MAC standard header.
Step 72: the MAC layer of the terminal loads the packaged uplink feedback information or uplink control channel information into a private PDCP header, wherein the private PDCP header carries the identifier of the SeNB;
one implementation of a private PDCP header may be PDCP standard header +1bit information (1bit information to indicate not delivery to upper layers, but rather information forwarded to SeNB RLC) + identity of SeNB or other identity that MeNB uses to identify SeNB.
Step 73: and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private PDCP header to the MeNB.
Specifically, the terminal may send the uplink feedback information or the uplink control channel information loaded with the private PDCP header to the MeNB through a PUSCH resource of the MeNB.
According to the information transmission method provided by the embodiment of the invention, when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, the terminal encapsulates uplink feedback information or uplink control channel information, loads the encapsulated uplink feedback information or uplink control channel information into a private PDCP (packet data convergence protocol) header, and enables the MeNB to know that the uplink feedback information or the uplink control channel information is information to be transmitted to the SeNB when the MeNB receives the uplink feedback information or the uplink control channel information and removes the private PDCP header by the private PDCP header carrying the identifier of the SeNB.
The embodiment of the invention also provides an information transmission method, which is applied to the SeNB under the dual connectivity network, and comprises the following steps:
when an uplink feedback link or an uplink control channel link between a terminal and the SeNB is broken, the SeNB receives uplink feedback information or uplink control channel information uploaded by the terminal and transmitted through the MeNB; or
And when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the SeNB sends downlink feedback information or downlink control information corresponding to the terminal to the MeNB.
According to the information transmission method provided by the embodiment of the invention, when the uplink/downlink feedback link or the uplink/downlink control channel link between the terminal and the SeNB is broken, the uplink/downlink feedback information or the uplink/downlink control information between the terminal and the SeNB can be transmitted through the MeNB, so that the normal transmission of the data link between the terminal and the SeNB is ensured, and the transmission rate of the terminal is improved.
The information transmission method applied to the SeNB according to the embodiment of the present invention is described below by taking uplink feedback link or uplink control channel link disconnection between the terminal and the SeNB as an example.
In some embodiments of the present invention, when the MAC layer of the SeNB receives the uplink feedback information or uplink control channel information loaded with a private transmission protocol header and sent by the MAC layer of the MeNB, the MAC layer of the SeNB removes the private transmission protocol header to obtain the required uplink feedback information or uplink control channel information.
In some other embodiments of the present invention, when the RLC layer of the SeNB receives the uplink feedback information or the uplink control channel information loaded with the private transmission protocol header and sent by the RLC layer of the MeNB, the RLC layer of the SeNB removes the private transmission protocol header to obtain the required uplink feedback information or uplink control channel information.
In some other embodiments of the present invention, when the RLC layer of the SeNB receives the uplink feedback information or the uplink control channel information sent by the PDCP layer of the MeNB, the RLC layer and the MAC layer of the SeNB sequentially process the received uplink feedback information or the received uplink control channel information to obtain the required uplink feedback information or the required uplink control channel information.
Specifically, when the SeNB RLC standard header and the SeNB MAC standard header are encapsulated in the uplink feedback information or the uplink control channel information, the SeNB RLC layer and the MAC layer sequentially remove the SeNB RLC standard header and the SeNB MAC standard header in the uplink feedback information or the uplink control channel information to obtain the required uplink feedback information or the required uplink control channel information.
When only the SeNB RLC standard header is encapsulated in the uplink feedback information or the uplink control channel information, and the SeNB MAC standard header is not encapsulated, the SeNB RLC layer removes the SeNB RLC standard header in the uplink feedback information or the uplink control channel information to obtain the required uplink feedback information or uplink control channel information.
In the foregoing embodiments, the MeNB and the SeNB may be air interface base stations of different systems, and frequency bands of the MeNB and the SeNB may also be different.
The information transmission method according to the embodiment of the present invention is described below with reference to specific embodiments.
Example ten
Referring to fig. 8, the information transmission method in the embodiment of the present invention includes the following steps:
step 801: the terminal detects uplink feedback link disconnection with the SeNB.
The terminal may detect whether an uplink feedback link between the terminal and the SeNB is broken in various ways, for example, after the terminal sends an SR (scheduling request), no uplink scheduling is monitored on a PDCCH channel within a preset time period; or, the terminal estimates downlink path loss through downlink RSRP (reference signal received power), indirectly estimates uplink path loss, and the like.
Step 802: the MAC layer of the terminal encapsulates the uplink feedback information required to be transmitted to the SeNB, the encapsulated uplink feedback information is loaded with a private MAC header, and the private MAC header carries an identifier of the SeNB.
The encapsulated information may include:
a) a radio frame number;
b) a UE Identity (ID), such as C-RNTI (cell radio network temporary identity);
c) HARQ (hybrid automatic repeat request) or ARQ (automatic repeat request) process numbers (depending mainly on whether d) belongs to a HARQ process or to an ARQ process);
d) and uplink feedback information A/N.
Step 803: and the terminal sends the uplink feedback information loaded with the private MAC header to the MeNB through the PUSCH resource of the MeNB.
Step 804: when the MAC layer of the MeNB removes the private MAC header of the uplink feedback information, the address of the SeNB is found through the identifier of the SeNB carried in the private MAC header, and the private transmission protocol header is loaded on the uplink feedback information.
Step 805: the MeNB transmits the uplink feedback information loaded with the private transport protocol header to the MAC layer of the SeNB through a MAC layer switching device (e.g., an ethernet switching device) between the MeNB and the SeNB.
Step 806: and after receiving the uplink feedback information loaded with the private transmission protocol header, the MAC layer of the SeNB removes the private transmission protocol header, and the obtained uplink feedback information is directly used for uplink HARQ feedback and subsequent scheduling of a corresponding process of the SeNB.
In the above embodiment, if the packaged uplink feedback information a/N belongs to the a/N feedback of the ARQ process, the MAC layer of the terminal loads the private RLC header and then loads the standard MAC header when packaging the uplink feedback information. The private RLC header carries the identity of the SeNB.
At this time, step 804 immediately changes to that, when the RLC layer of the MeNB removes the private RLC header of the uplink feedback information, the address of the SeNB is found through the identifier of the SeNB carried in the private RLC header, and the private transmission protocol header is loaded on the uplink feedback information.
Step 806 is immediately changed to that after the RLC layer of the SeNB receives the uplink feedback information loaded with the private transmission protocol header, the private transmission protocol header is removed, and the obtained uplink feedback information is directly used for uplink ARQ feedback of the corresponding process of the SeNB.
When the terminal sends uplink control channel information (such as SeNB CQI (channel quality indication) information required for SeNB MAC layer scheduling), the flow is similar to the above-described flow, and is not described again.
In the embodiment of the invention, the interaction of the uplink control channel information and the uplink feedback information is completed on the MAC or RLC layers of the MeNB and the SeNB, the transmission time delay is small, and the data transmission rate is improved.
EXAMPLE eleven
Referring to fig. 9, the information transmission method in the embodiment of the present invention includes the following steps:
step 901: the terminal detects uplink feedback link disconnection with the SeNB.
The terminal may detect whether an uplink feedback link between the terminal and the SeNB is broken in various ways, for example, after the terminal sends an SR (scheduling request), no uplink scheduling is monitored on a PDCCH channel within a preset time period; or, the terminal estimates downlink path loss through downlink RSRP (reference signal received power), indirectly estimates uplink path loss, and the like.
Step 902: the MAC layer of the terminal encapsulates uplink feedback information needing to be transmitted to the SeNB, loads the encapsulated uplink feedback information with a private PDCP (packet data convergence protocol) header, a standard RLC (radio link control) header and a standard MAC header, wherein the private PDCP header carries the identifier of the SeNB, and the purpose is that when the MeNB receives the encapsulated uplink feedback information and removes the private PDCP header, the MeNB can know that the encapsulated uplink feedback information is the information to be transmitted to the SeNB.
The encapsulated information may include:
a) a radio frame number;
b) a UE Identity (ID), such as C-RNTI (cell radio network temporary identity);
c) HARQ (hybrid automatic repeat request) or ARQ (automatic repeat request) process numbers (depending mainly on whether d) belongs to a HARQ process or to an ARQ process);
d) uplink feedback information A/N;
e) SeNB MAC standard header;
f) SeNB RLC standard header.
One implementation of the private PDCP header is a standard PDCP header +1bit information (indicating that the delivery is not to the upper layer, but rather a message forwarded to the RLC layer of the SeNB) + SeNB identity or other identity used by the MeNB to identify the SeNB.
Step 903: and the terminal sends the uplink feedback information loaded with the private MAC header to the MeNB through the PUSCH resource of the MeNB.
Step 904: after receiving the uplink feedback information, the MeNB sequentially removes the standard MAC header and the standard RLC header through the processing of the MAC layer and the RLC layer, and delivers the standard MAC header and the standard RLC header to the PDCP layer.
Step 905: when the private PDCP header is removed by the PDCP layer of the MeNB, the address of the SeNB is found through the identifier of the SeNB carried in the private PDCP header, and the uplink feedback information is directly forwarded to the RLC layer of the SeNB.
Step 906: after receiving the uplink feedback information, the SeNB sequentially removes the SeNB RLC standard header and the SeNB MAC standard header in the encapsulation information through the processing of the RLC layer and the MAC layer, and the obtained uplink feedback information is directly used for uplink HARQ feedback and subsequent scheduling of a process corresponding to the SeNB.
In the above embodiment, if the encapsulated uplink feedback information a/N belongs to the a/N feedback of the ARQ process, the MAC layer of the terminal encapsulates only the senbmc standard header and does not encapsulate the senbmc standard header when encapsulating the uplink feedback information.
Step 906 is immediately changed to that after the SeNB receives the uplink feedback information, the SeNB RLC standard header in the encapsulation information is removed through RLC layer processing, and the obtained uplink feedback information is directly used for uplink ARQ feedback of a corresponding process of the SeNB.
When the terminal sends uplink control channel information (such as SeNB CQI (channel quality indication) information required for SeNB MAC layer scheduling), the flow is similar to the above-described flow, and is not described again.
In the embodiment of the invention, the PDCP layer of the MeNB is used for transmitting the uplink control channel information and the uplink feedback information to the SeNB without introducing extra switching equipment.
An embodiment of the present invention further provides an MeNB, including:
the receiver is used for receiving uplink feedback information or uplink control channel information which is sent by a terminal and corresponds to an SeNB (evolved node B) when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken under a dual-connection network; or receiving downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken;
the processor is used for processing the received uplink feedback information or the uplink control channel information; or, processing the received downlink feedback information or downlink control information;
a transmitter, configured to send the processed uplink feedback information or uplink control channel information to the SeNB; or sending the processed downlink feedback information or downlink control information to the terminal.
Preferably, the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries an identifier of the SeNB;
the processor is further configured to remove a private MAC header or a private RLC header of the uplink feedback information or the uplink control channel information after receiving the uplink feedback information or the uplink control channel information, and acquire an identifier of the SeNB carried in the private MAC header or the private RLC header; determining the address of the SeNB according to the identifier of the SeNB; loading the uplink feedback information or uplink control channel information with the private MAC header or the private RLC header removed with a private transmission protocol header;
the sender is further configured to send, according to the address of the SeNB, uplink feedback information or uplink control channel information loaded with a private transport protocol header to the MAC layer or the RLC layer of the SeNB through the MAC layer or the RLC layer switching device between the MeNB and the SeNB.
Preferably, the uplink feedback information or the uplink control channel information is loaded with a private PDCP header, a SeNB MAC standard header, and a SeNB RLC standard header, or is loaded with a private PDCP header and a SeNB RLC standard header, and the private PDCP header carries an identifier of a SeNB;
the processor is further configured to remove a private PDCP header of the received uplink feedback information or uplink control channel information, and acquire an identifier of the SeNB carried in the private PDCP header; determining the address of the SeNB according to the identifier of the SeNB; and sending the uplink feedback information or the uplink control channel information with the removed private PDCP header to an RLC layer of the SeNB according to the address of the SeNB.
An embodiment of the present invention further provides a terminal, including:
a transmitter, configured to send, to an MeNB, uplink feedback information or uplink control channel information corresponding to an SeNB when detecting that an uplink feedback link or an uplink control channel link between the SeNB and the MeNB is broken in a dual connectivity network; or
And the receiver is used for receiving the downlink feedback information or the downlink control information transmitted by the SeNB and transmitted by the MeNB when a downlink feedback link or a downlink control channel link between the SeNB and a terminal is broken.
Preferably, the terminal further comprises:
the processor is used for encapsulating the uplink feedback information or the uplink control channel information which needs to be transmitted to the SeNB to obtain the encapsulated uplink feedback information or uplink control channel information; loading a private MAC header or a private RLC header on the packaged uplink feedback information or uplink control channel information, wherein the private MAC header or the private RLC header carries the identifier of the SeNB;
the transmitter is further configured to send uplink feedback information or uplink control channel information loaded with the private MAC header or the private RLC header to the MeNB.
Preferably, the terminal further includes:
a processor, configured to encapsulate uplink feedback information or uplink control channel information that needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information, where the encapsulated uplink feedback information or uplink control channel information includes a SeNB MAC standard header and a SeNB RLC standard header, or includes a SeNB RLC standard header; loading the encapsulated uplink feedback information or uplink control channel information into a private PDCP header, wherein the private PDCP header carries the identifier of the SeNB;
the transmitter is further configured to send uplink feedback information or uplink control channel information loaded with the private PDCP header to the MeNB.
An embodiment of the present invention further provides an SeNB, including:
a receiver, configured to receive, in a dual connectivity network, uplink feedback information or uplink control channel information uploaded by a terminal and transmitted by an MeNB when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken; or
A transmitter, configured to send downlink feedback information or downlink control information corresponding to the terminal to the MeNB when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken.
Preferably, the SeNB further comprises:
the processor is configured to remove the private transmission protocol header when receiving uplink feedback information or uplink control channel information loaded with the private transmission protocol header and sent by the MAC layer or the RLC layer of the MeNB, so as to obtain the required uplink feedback information or uplink control channel information; or
And the processor is used for processing the uplink feedback information or the uplink control channel information sent by the PDCP layer of the MeNB to obtain the required uplink feedback information or the required uplink control channel information.
The embodiment of the invention also provides an MeNB, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the information transmission method applied to the MeNB in any of the above embodiments when executing the program.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the information transmission method applied to the terminal in any of the above embodiments when executing the program.
The embodiment of the invention also provides an SeNB, which comprises a memory, a processor and a computer program, wherein the computer program is stored on the memory and can run on the processor; the processor implements the information transmission method applied to the SeNB in any of the above embodiments when executing the program.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the information transmission method in any of the above embodiments.
Such computer-readable media, which include both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (25)

1. An information transmission method is applied to an MeNB under a dual connectivity network, and is characterized by comprising the following steps:
when an uplink feedback link or an uplink control channel link between a terminal and a SeNB is broken, the MeNB receives uplink feedback information or uplink control channel information which is sent by the terminal and corresponds to the SeNB, processes the received uplink feedback information or uplink control channel information and sends the processed uplink feedback information or uplink control channel information to the SeNB; the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries the identification of the SeNB.
2. The information transmission method according to claim 1, further comprising:
when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the MeNB receives downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal, processes the received downlink feedback information or downlink control information and sends the processed downlink feedback information or downlink control information to the terminal.
3. The information transmission method according to claim 1, wherein the step of processing the received uplink feedback information or uplink control channel information and sending the processed uplink feedback information or uplink control channel information to the SeNB comprises:
after receiving the uplink feedback information or the uplink control channel information, the MAC layer or the RLC layer of the MeNB removes a private MAC header or a private RLC header of the uplink feedback information or the uplink control channel information, and obtains an identifier of the SeNB carried in the private MAC header or the private RLC header;
the MeNB determines the address of the SeNB according to the identifier of the SeNB;
the MeNB loads the uplink feedback information or the uplink control channel information with the private MAC header or the private RLC header removed with a private transmission protocol header;
and the MeNB sends uplink feedback information or uplink control channel information loaded with a private transmission protocol header to the MAC layer or the RLC layer of the SeNB through the MAC layer or the RLC layer switching equipment between the MeNB and the SeNB according to the address of the SeNB.
4. The information transmission method according to claim 1, wherein the uplink feedback information or uplink control channel information is loaded with a private PDCP header, a SeNB MAC standard header, and a SeNB RLC standard header, or with a private PDCP header and a SeNB RLC standard header, wherein the private PDCP header carries an identity of a SeNB;
the step of processing the received uplink feedback information or uplink control channel information and sending the processed uplink feedback information or uplink control channel information to the SeNB includes:
the PDCP layer of the MeNB removes a private PDCP header of the received uplink feedback information or uplink control channel information, and acquires an identifier of the SeNB carried in the private PDCP header;
the PDCP layer of the MeNB determines the address of the SeNB according to the identification of the SeNB;
and the PDCP layer of the MeNB sends the uplink feedback information or the uplink control channel information with the removed private PDCP header to the RLC layer of the SeNB according to the address of the SeNB.
5. An information transmission method is applied to a terminal under a dual connectivity network, and is characterized by comprising the following steps:
when the terminal detects that an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken, sending uplink feedback information or uplink control channel information corresponding to the SeNB to the MeNB; the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries the identification of the SeNB.
6. The information transmission method according to claim 5, further comprising:
and when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the terminal receives downlink feedback information or downlink control information transmitted by the SeNB and transmitted by the MeNB.
7. The information transmission method according to claim 5, wherein the step of transmitting uplink feedback information or uplink control channel information corresponding to the SeNB to the MeNB comprises:
the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information;
the MAC layer of the terminal loads the uplink feedback information or the uplink control channel information after being packaged with a private MAC header or a private RLC header, wherein the private MAC header or the private RLC header carries the identification of the SeNB;
and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private MAC header or the private RLC header to the MeNB.
8. The information transmission method according to claim 5, wherein the step of sending uplink feedback information or uplink control channel information corresponding to the SeNB to the MeNB comprises:
the terminal encapsulates uplink feedback information or uplink control channel information which needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information, wherein the encapsulated uplink feedback information or uplink control channel information comprises a SeNB MAC standard header and a SeNB RLC standard header or comprises a SeNB RLC standard header;
the MAC layer of the terminal loads the packaged uplink feedback information or uplink control channel information into a private PDCP header, wherein the private PDCP header carries the identifier of the SeNB;
and the terminal sends the uplink feedback information or the uplink control channel information loaded with the private PDCP header to the MeNB.
9. An information transmission method applied to an SeNB under a dual connectivity network, comprising:
when an uplink feedback link or an uplink control channel link between a terminal and the SeNB is broken, the SeNB receives uplink feedback information or uplink control channel information uploaded by the terminal and transmitted by the MeNB; the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries the identification of the SeNB.
10. The information transmission method according to claim 9, further comprising:
and when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, the SeNB sends downlink feedback information or downlink control information corresponding to the terminal to the MeNB.
11. The information transmission method according to claim 9, wherein the step of the SeNB receiving the uplink feedback information or uplink control channel information uploaded by the terminal via the MeNB comprises:
when the MAC layer or the RLC layer of the SeNB receives uplink feedback information or uplink control channel information loaded with a private transmission protocol header and sent by the MAC layer or the RLC layer of the MeNB, the private transmission protocol header is removed, and the required uplink feedback information or uplink control channel information is obtained; or
And when the RLC layer of the SeNB receives the uplink feedback information or the uplink control channel information sent by the PDCP layer of the MeNB, the RLC layer and the MAC layer of the SeNB sequentially process the received uplink feedback information or the uplink control channel information to obtain the required uplink feedback information or the required uplink control channel information.
12. An MeNB, comprising:
the receiver is used for receiving uplink feedback information or uplink control channel information which is sent by a terminal and corresponds to an SeNB (evolved node B) when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken under a dual-connection network; the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries an identifier of the SeNB; or receiving downlink feedback information or downlink control information which is sent by the SeNB and corresponds to the terminal when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken;
the processor is used for processing the received uplink feedback information or the uplink control channel information; or, processing the received downlink feedback information or downlink control information;
a transmitter, configured to send the processed uplink feedback information or uplink control channel information to the SeNB; or sending the processed downlink feedback information or downlink control information to the terminal.
13. The MeNB of claim 12, wherein the uplink feedback information or uplink control channel information is loaded with a private MAC header or a private RLC header, the private MAC header or the private RLC header carrying an identity of the SeNB;
the processor is further configured to remove a private MAC header or a private RLC header of the uplink feedback information or the uplink control channel information after receiving the uplink feedback information or the uplink control channel information, and acquire an identifier of the SeNB carried in the private MAC header or the private RLC header; determining the address of the SeNB according to the identifier of the SeNB; loading the uplink feedback information or uplink control channel information with the private MAC header or the private RLC header removed with a private transmission protocol header;
the sender is further configured to send, according to the address of the SeNB, uplink feedback information or uplink control channel information loaded with a private transport protocol header to the MAC layer or the RLC layer of the SeNB through the MAC layer or the RLC layer switching device between the MeNB and the SeNB.
14. The MeNB of claim 12, wherein the uplink feedback information or uplink control channel information is loaded with a private PDCP header, a SeNB MAC standard header, and a SeNB RLC standard header, or with a private PDCP header and a SeNB RLC standard header, wherein the private PDCP header carries an identity of the SeNB;
the processor is further configured to remove a private PDCP header of the received uplink feedback information or uplink control channel information, and acquire an identifier of the SeNB carried in the private PDCP header; determining the address of the SeNB according to the identifier of the SeNB; and sending the uplink feedback information or the uplink control channel information with the removed private PDCP header to an RLC layer of the SeNB according to the address of the SeNB.
15. A terminal, comprising:
a transmitter, configured to send, to an MeNB, uplink feedback information or uplink control channel information corresponding to an SeNB when detecting that an uplink feedback link or an uplink control channel link between the SeNB and the MeNB is broken in a dual connectivity network; the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries the identification of the SeNB.
16. The terminal of claim 15, further comprising:
a receiver, configured to receive, when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken, downlink feedback information or downlink control information transmitted by the SeNB and transmitted through the MeNB.
17. The terminal of claim 15, further comprising:
the processor is used for encapsulating the uplink feedback information or the uplink control channel information which needs to be transmitted to the SeNB to obtain the encapsulated uplink feedback information or uplink control channel information; loading a private MAC header or a private RLC header on the packaged uplink feedback information or uplink control channel information, wherein the private MAC header or the private RLC header carries the identifier of the SeNB;
the transmitter is further configured to send uplink feedback information or uplink control channel information loaded with the private MAC header or the private RLC header to the MeNB.
18. The terminal of claim 15, further comprising:
a processor, configured to encapsulate uplink feedback information or uplink control channel information that needs to be transmitted to the SeNB to obtain encapsulated uplink feedback information or uplink control channel information, where the encapsulated uplink feedback information or uplink control channel information includes a SeNB MAC standard header and a SeNB RLC standard header, or includes a SeNB RLC standard header; loading the encapsulated uplink feedback information or uplink control channel information into a private PDCP header, wherein the private PDCP header carries the identifier of the SeNB;
the transmitter is further configured to send uplink feedback information or uplink control channel information loaded with the private PDCP header to the MeNB.
19. An SeNB, comprising:
a receiver, configured to receive, in a dual connectivity network, uplink feedback information or uplink control channel information uploaded by a terminal and transmitted by an MeNB when an uplink feedback link or an uplink control channel link between the terminal and the SeNB is broken; the uplink feedback information or the uplink control channel information is loaded with a private MAC header or a private RLC header, and the private MAC header or the private RLC header carries the identification of the SeNB.
20. The SeNB of claim 19, further comprising:
a transmitter, configured to send downlink feedback information or downlink control information corresponding to the terminal to the MeNB when a downlink feedback link or a downlink control channel link between the SeNB and the terminal is broken.
21. The SeNB of claim 19, further comprising:
the processor is configured to remove the private transmission protocol header when receiving uplink feedback information or uplink control channel information loaded with the private transmission protocol header and sent by the MAC layer or the RLC layer of the MeNB, so as to obtain the required uplink feedback information or uplink control channel information; or
And the processor is used for processing the uplink feedback information or the uplink control channel information sent by the PDCP layer of the MeNB to obtain the required uplink feedback information or the required uplink control channel information.
22. An MeNB comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the information transmission method according to any one of claims 1 to 4.
23. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the information transmission method according to any one of claims 5 to 8.
24. A SeNB comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the information transmission method according to any one of claims 9-11 when executing the program.
25. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the information transmission method according to any one of claims 1 to 11.
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