JP6665330B2 - Radio bearer processing method, user equipment, and base station - Google Patents

Description

  The present invention relates to the field of wireless communication technology, and in particular, to a method of processing a radio bearer, a user equipment, and a base station.

  In Long Term Evolution (LTE for short), two types of radio bearers (Radio Bearer, RB for short) are provided to meet user demand for higher peak rate of radio bearer, One is called a Master Cell Group (MCG) bearer, and the other is called a Split bearer. Split bearers have a higher peak rate than the MCG bearer peak rate. FIG. 1 is a schematic diagram of the protocol stack architecture of the MCG bearer and the split bearer. FIG. 1 shows the following.

  In User Equipment (UE), one MCG bearer has one Packet Data Convergence Protocol (PDCP) entity and one Radio Link Control (Radio Link Control). Hereafter abbreviated as RLC) entity. In FIG. 1, the PDCP entity and the RLC entity are represented by PDCP1 and m-RLC1, respectively, where the m-RLC1 entity is one corresponding Medium Access Control (MAC) entity (m-MAC) And the m-MAC entity corresponds to a first base station (Master eNB, hereinafter MeNB). The protocol entities in the UE have their respective peer protocol entities on the network side, and the PDCP1 entity, the m-RLC1 entity, and the m-MAC entity's peer protocol entity are each a peer p- A PDCP1 entity, a peer pm-RLC1 entity, and a peer pm-MAC entity. All downlink data packets of the MCG bearer are sent from the peer p-PDCP1 entity to the peer pm-RLC1 entity, and then to the peer pm-MAC entity, which then sends the m- Sent to the MAC entity. Then, the m-MAC entity finally conveys the received data packet to the PDCP1 entity via the m-RLC1 entity. The transmission path of the uplink data packet of the MCG bearer is opposite to the transmission path of the downlink data packet of the MCG bearer.

  At the UE, one Split bearer is associated with one PDCP2 entity and two RLC entities. In FIG. 1, the two RLC entities are represented by m-RLC2 and s-RLC, respectively, where the m-RLC2 entity is associated with the m-MAC entity, the s-RLC entity is associated with the s-MAC entity, and m -The MAC entity corresponds to the first base station MeNB, and the s-MAC entity corresponds to the second base station (Secondary eNB, hereinafter SeNB). The protocol entities in the UE have their respective peer protocol entities on the network side, and the peer protocol entities of the PDCP2 entity, the m-RLC2 entity, and the m-MAC entity are respectively the peer p- PDCP2, peer pm-RLC2, and peer pm-MAC, and the peer protocol entities of the s-RLC entity and the s-MAC entity are the peer ps-RLC entity and the peer ps-MAC entity in the SeNB, respectively. Some of the downlink data packets of the Split bearer are sent from the peer p-PDCP2 entity to the peer pm-RLC2 entity and then to the peer pm-MAC entity, which in turn sends the peer pm-MAC entity over the air interface. Sent to the m-MAC entity. The m-MAC entity then eventually carries these received data packets to the PDCP2 entity via the m-RLC2 entity. Other downlink data packets of the Split bearer are sent by the peer p-PDCP2 entity to the peer ps-RLC entity via the interface between MeNB and SeNB, and the peer ps-RLC entity converts these data packets. Carry to the peer ps-MAC entity, which then sends these data packets over the air interface to the s-MAC entity. The s-MAC entity then eventually carries these received data packets to the PDCP2 entity via the s-RLC entity. The transmission path of the uplink data packet of the split bearer is opposite to the transmission path of the downlink data packet of the split bearer.

  The MCG bearer and the Split bearer can switch to each other according to factors such as changes in the channel environment and data transmission requirements. However, in the prior art, when the Split bearer needs to switch to the MCG bearer, the MeNB determines whether to convert the UE's Split bearer to the MCG bearer according to the measurement report on the SeNB transmitted by the UE. In the case of switching, UE and SeNB are individually notified. The UE needs to release the s-MAC and s-RLC entities of the Split bearer, and the SeNB needs to release the peer ps-MAC and ps-RLC entities of the Split bearer. Then, when the MCG bearer obtained after the conversion needs to return to the Split bearer, the MeNB determines whether to return the MCG bearer to the Split bearer according to another measurement report for the SeNB sent by the UE, When returning, the UE and the SeNB are individually notified, and the UE needs to re-establish the s-MAC entity and the s-RLC entity for the bearer, and the SeNB also needs the peer ps-MAC entity and the peer ps- for the bearer. RLC entity needs to be re-established.

  In the above conventional scheme, there is a relatively large amount of air interface signaling dialogue between the UE and the MeNB, and there is also a relatively large amount of backbone network signaling dialogue between the MeNB and the SeNB, whereby the network The signaling load increases and the signaling delay becomes relatively long. In addition, the release and re-establishment of the protocol entities associated with the bearers results in relatively low resource utilization.

  Embodiments of the present invention provide a radio bearer processing method, user equipment, and a base station, which can be used for an existing bearer having a heavy signaling load, relatively long signaling delay, and relatively low resource utilization. Overcoming shortcomings in processing schemes.

A first aspect of an embodiment of the present invention provides a method of processing a radio bearer, the method comprising:
Suspending the data transmission of the bearer on the second base station by the user equipment;
By the user equipment, transmitting a suspend instruction to the first base station, wherein the suspend instruction is used to indicate that the user equipment has suspended data transmission of the bearer on the second base station, Transmitting.

In a first possible implementation of the first aspect, the user equipment suspends data transmission of the bearer on the second base station,
By the user equipment, according to the first measurement result, determining that data transmission of the bearer on the second base station needs to be interrupted,
Depending on the user equipment, the following actions:
Interrupting a radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with a bearer and corresponds to a second base station, performing the interrupting, or Depending on the equipment, the following actions:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and radio in the user equipment Disrupting a link control entity (s-RLC), wherein the s-RLC is associated with a bearer and performs suspending corresponding to a second base station.

In a second possible implementation scheme of the first aspect, suspending data transmission of the bearer on the second base station by the user equipment comprises:
Receiving, by the user equipment, a suspend command transmitted by the first base station, wherein the suspend command instructs the user equipment to suspend data transmission of the bearer on the second base station. Used, receiving,
According to the suspend command by the user equipment, the following actions:
Interrupting a radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with a bearer and corresponds to a second base station, performing the interrupting, or Depending on the equipment, the following actions:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and radio in the user equipment Disrupting a link control entity (s-RLC), wherein the s-RLC is associated with a bearer and performs suspending corresponding to a second base station.

  In a third possible implementation scheme of the first aspect, the suspend indication is further used to instruct the first base station to send a suspend request to the second base station, wherein the suspend request comprises: Used to request the second base station to suspend data transmission of the bearer on the second base station.

With reference to the first aspect, or the first, second, or third possible mounting scheme of the first aspect, in a fourth possible mounting scheme of the first aspect, a first After sending a suspend indication to the base station of
By the user equipment, according to the second measurement result, determining that data transmission of the bearer on the second base station needs to be restarted,
Reestablishing a radio link control entity (s-RLC) in the user equipment by the user equipment and restarting the s-RLC, wherein the s-RLC is associated with a bearer and corresponds to a second base station To resume,
By the user equipment, sending a restart instruction to the first base station, wherein the restart instruction is used to instruct the first base station to send a restart request to the second base station; Transmitting, wherein the restart request is used to request the second base station to restart data transmission of the bearer on the second base station.

With reference to the first aspect, or the first, second, or third possible mounting scheme of the first aspect, in a fifth possible mounting scheme of the first aspect, a first After sending a suspend indication to the base station of
Transmitting, by the user equipment, a second measurement result to the first base station;
Receiving, by the user equipment, a restart command transmitted by the first base station, re-establishing a radio link control entity (s-RLC) in the user equipment according to the restart command, and restarting the s-RLC. The s-RLC is associated with the bearer and corresponds to the second base station, and the first base station resumes data transmission of the bearer on the second base station according to the second measurement result. After determining that there is a need, a restart command is transmitted by the first base station, further comprising restarting.

The first, second, third, fourth, or fifth possible mounting method of the first aspect, with reference to the sixth possible mounting method of the first aspect, the first measurement result and The second measurement result is the following measurement object:
The status of the radio link between the user equipment and the second base station, the signal strength of the second base station, the signal quality of the second base station, and the data packets to be transmitted by the user equipment via the bearer Is a result obtained by the user equipment by measuring at least one of the amount or volume of

A second aspect of an embodiment of the present invention provides a method of processing a radio bearer, the method comprising:
Receiving, by the first base station, a suspend instruction transmitted by the user equipment;
Determining, by the first base station, that the user equipment suspends data transmission of the bearer on the second base station according to the interruption instruction.

In a first possible implementation scheme of the second aspect, after receiving, by the first base station, an interruption indication sent by the user equipment, the method comprises:
Transmitting, by the first base station, a suspend request to a second base station, wherein the suspend request requests the second base station to suspend data transmission of a bearer on the second base station. Further including transmitting, which is used to

With reference to the first possible implementation scheme of the second aspect, in a second possible implementation scheme of the second aspect, the first base station transmits a suspend request to the second base station. Wherein the suspend request is used to request the second base station to suspend data transmission of the bearer on the second base station, the transmitting comprising:
By transmitting a suspend request to a second base station by the first base station,
The suspend request has the following behavior:
Interrupting a radio link control entity (ps-RLC) in a second base station, wherein the ps-RLC is associated with a bearer, requesting the second base station to perform the interrupting The following actions are used or suspend requests:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), including transmitting the ps-RLC associated with the bearer, which is used to request the second base station to perform the suspending.

In a third possible implementation scheme of the second aspect, after receiving, by the first base station, a suspend indication sent by the user equipment, the method comprises:
By the first base station, receiving a restart instruction transmitted by the user equipment;
According to the restart instruction, the first base station transmits a first restart request to the second base station, and the first restart request restarts data transmission of a bearer on the second base station. Transmitting, which is used to request the second base station to transmit.

With reference to the third possible implementation scheme of the second aspect, in a fourth possible implementation scheme of the second aspect, the first base station sends the first base station to the second base station according to the restart instruction. Transmitting a resume request, wherein the first resume request is used to request the second base station to resume data transmission of the bearer on the second base station, transmitting The thing is
By the first base station, according to the restart instruction, to transmit a first restart request to the second base station,
The first resume request has the following behavior:
Reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the resuming. The first resume request used to make a request to the base station or the following operations:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC) and re-establishing the ps-RLC, wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform the re-starting transmission. Including doing.

In a fifth possible implementation scheme of the second aspect, after receiving, by the first base station, an interruption indication sent by the user equipment, the method comprises:
By the first base station, determining that data transmission of the bearer on the second base station needs to be restarted,
By the first base station, sending a restart command to the user equipment, sending a second restart request to the second base station, wherein the restart command, bearer data transmission on the second base station A second resume request is used to request the second base station to resume data transmission of the bearer on the second base station. And transmitting.

With reference to the fifth possible implementation scheme of the second aspect, in a sixth possible implementation scheme of the second aspect, data transmission of a bearer on the second base station is performed by the first base station. Before deciding that it needs to be resumed, the method
Further comprising, by the first base station, receiving a second measurement transmitted by the user equipment;
By the first base station, determining that data transmission of the bearer on the second base station needs to be resumed,
The method includes determining, by the first base station, that data transmission of the bearer on the second base station needs to be restarted according to the second measurement result.

With reference to the fifth possible implementation scheme of the second aspect, in a seventh possible implementation scheme of the second aspect, the first base station transmits a restart command to the user equipment. The resume command is used to instruct the user equipment to resume data transmission of the bearer on the second base station, transmitting,
Sending a resume command to the user equipment by the first base station, wherein the resume command re-establishes a radio link control entity (s-RLC) in the user equipment and resumes the s-RLC. Used to command the user equipment, the s-RLC is associated with a bearer and includes transmitting corresponding to a second base station.

With reference to the fifth possible implementation scheme of the second aspect, in an eighth possible implementation scheme of the second aspect, the first base station sends a second restart request to the second base station. Transmitting, wherein the second resume request is used to request the second base station to resume data transmission of the bearer on the second base station, transmitting comprises:
By the first base station, to send a second restart request to the second base station,
The second resume request has the following behavior:
Reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the resuming. The second restart request, which is used to make a request to the base station of
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC) and re-establishing the ps-RLC, wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform the re-starting transmission. Including doing.

A third aspect of an embodiment of the present invention provides a method of processing a radio bearer, the method comprising:
By the second base station, suspending data transmission of the bearer on the second base station;
By the second base station, transmitting an interruption instruction to the first base station, wherein the interruption instruction indicates that the second base station has interrupted data transmission of the bearer on the second base station. Used for transmitting, including.

In a first possible implementation of the third aspect, the second base station interrupts data transmission of the bearer on the second base station,
By the second base station, according to the measurement result, to determine that the data transmission of the bearer on the second base station needs to be interrupted,
The following operations by the second base station:
Interrupting a radio link control entity (ps-RLC) in the second base station, wherein the ps-RLC is associated with a bearer, performing the interrupting, or by the second base station: motion:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), wherein the ps-RLC is associated with a bearer and includes performing a suspend.

  With reference to the first possible implementation scheme of the third aspect, in a second possible implementation scheme of the third aspect, the suspend instruction is such that the first base station transmits a suspend command to the user equipment. And the suspend command is used to instruct the user equipment to suspend data transmission of the bearer on the second base station.

With reference to the first possible mounting scheme of the third aspect, in a third possible mounting scheme of the third aspect, the second base station may transmit an interruption instruction to the first base station. After, the method is
By the second base station, receiving the restart request transmitted by the first base station;
Restarting, by the second base station, data transmission of the bearer on the second base station according to the restart request.

With reference to the third possible implementation scheme of the third aspect, in a fourth possible implementation scheme of the third aspect, the bearer on the second base station according to the restart request by the second base station. Resuming data transmission for
The second base station re-establishes a radio link control entity (ps-RLC) in the second base station and restarts the ps-RLC according to the restart request, wherein the ps-RLC is associated with the bearer. , Including resuming.

With reference to the first, second, third, or fourth possible mounting method of the third embodiment, in the fifth possible mounting method of the third embodiment, the measurement result is the following measurement object:
Obtained by the second base station by measuring at least one of the uplink signal strength of the user equipment, the uplink signal quality of the user equipment, and the number of retransmissions of the radio link control entity (ps-RLC) This is the result.

A fourth aspect of the embodiments of the present invention provides a user equipment, wherein the user equipment comprises:
A processing module configured to suspend data transmission of the bearer on the second base station;
A transmission module configured to transmit an interruption instruction to a first base station, wherein the interruption instruction is used to indicate that a user equipment has interrupted data transmission of a bearer on the second base station. A transmission module.

In a first possible implementation of the fourth aspect, the processing module comprises:
According to the first measurement result, a determination unit configured to determine that data transmission of the bearer on the second base station needs to be interrupted,
The following behavior:
Disrupting a radio link control entity (s-RLC) in a user equipment, wherein the s-RLC is associated with a bearer and configured to perform a suspending corresponding to a second base station. Processing unit, or the following actions:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and radio in the user equipment Interrupting a link control entity (s-RLC), wherein the s-RLC is associated with a bearer and corresponds to a second base station, the processing unit configured to perform the interrupting. Including.

In a second possible implementation of the fourth aspect, the user equipment comprises:
A receiving module configured to receive a suspend command transmitted by a first base station, wherein the suspend command instructs a user equipment to suspend data transmission of a bearer on a second base station. Further comprising a receiving module used for
The processing unit operates as follows:
Disrupting a radio link control entity (s-RLC) in the user equipment, the s-RLC being further associated with a bearer and performing a suspending corresponding to a second base station. The processing unit performs the following:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and radio in the user equipment Disrupting a link control entity (s-RLC), wherein the s-RLC is associated with a bearer and is further configured to perform a suspending corresponding to a second base station.

  In a third possible implementation scheme of the fourth aspect, the suspend indication is further used to instruct the first base station to send a suspend request to the second base station, wherein the suspend request comprises: Used to request the second base station to suspend data transmission of the bearer on the second base station.

With reference to the fourth aspect or the first, second, or third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the determining unit comprises: According to the measurement result, further configured to determine that data transmission of the bearer on the second base station needs to be resumed,
The processing unit is further configured to re-establish a radio link control entity (s-RLC) in the user equipment and restart the s-RLC, wherein the s-RLC is associated with the bearer and communicates with the second base station. Correspondingly,
The processing module further includes a transmission unit configured to send a restart instruction to the first base station, wherein the restart instruction instructs the first base station to send a restart request to the second base station. The restart request is used to request the second base station to restart data transmission of the bearer on the second base station.

With reference to the fourth aspect or the first, second, or third possible implementation mode of the fourth aspect, in a fifth possible implementation mode of the fourth aspect, the transmitting unit may include the first unit. Further configured to transmit the second measurement result to the base station;
The processing unit further receives the resume command sent by the first base station, re-establishes a radio link control entity (s-RLC) in the user equipment according to the resume command, and resumes the s-RLC. The configured s-RLC is associated with the bearer and corresponds to the second base station, and the first base station resumes data transmission of the bearer on the second base station according to the second measurement result. After determining that a restart is needed, a restart command is sent by the first base station.

A fifth aspect of the embodiments of the present invention provides a first base station, wherein the first base station comprises:
A receiving module configured to receive the suspend instruction sent by the user equipment;
A processing module configured to determine that the user equipment suspends data transmission of the bearer on the second base station according to the suspension instruction.

In a first possible implementation mode of the fifth aspect, the first base station comprises:
A transmission module configured to transmit a suspend request to a second base station, wherein the suspend request requests the second base station to suspend data transmission of a bearer on the second base station. Further comprising a transmission module used for:

With reference to the first possible implementation of the fifth aspect, in a second possible implementation of the fifth aspect, the transmitting module, specifically,
Sending a suspend request to the second base station, wherein the suspend request comprises the following operations:
Interrupting a radio link control entity (ps-RLC) in a second base station, wherein the ps-RLC is associated with a bearer, requesting the second base station to perform the interrupting Used, transmitting, or sending a suspend request to a second base station, wherein the suspend request comprises the following operations:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), wherein the ps-RLC is associated with the bearer and is configured to transmit, which is used to request the second base station to perform the suspending. You.

In a third possible implementation of the fifth aspect, the receiving module comprises:
Further configured to receive a resume instruction sent by the user equipment;
The sending module is further configured to send a first restart request to the second base station according to the restart instruction, wherein the first restart request restarts data transmission of the bearer on the second base station. Used to request the second base station.

With reference to the third possible implementation mode of the fifth aspect, in a fourth possible implementation mode of the fifth aspect, the transmitting module specifically includes:
Sending a first restart request to the second base station according to the restart instruction, wherein the first restart request has the following operations:
Reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the resuming. Transmitting to the second base station in accordance with the restart instruction, wherein the first restart request comprises the following operations: :
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC) and re-establishing the ps-RLC, wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform the re-starting transmission. It is configured to do

In a fifth possible implementation scheme of the fifth aspect, the first base station comprises:
Further comprising a determining module configured to determine that data transmission of the bearer on the second base station needs to be resumed,
The sending module is further configured to send a resume command to the user equipment and send a second resume request to the second base station, wherein the resume command resumes data transmission of the bearer on the second base station. The second resume request is used to request the second base station to resume data transmission of the bearer on the second base station.

With reference to the fifth possible implementation of the fifth aspect, in a sixth possible implementation of the fifth aspect, the receiving module comprises:
Further configured to receive a second measurement transmitted by the user equipment;
The determining module is further configured to determine, according to the second measurement result, that data transmission of the bearer on the second base station needs to be resumed.

With reference to the fifth possible implementation mode of the fifth aspect, in a seventh possible implementation mode of the fifth aspect, the transmission module specifically,
Sending a resume command to the user equipment, the resume command reestablishing a radio link control entity (s-RLC) in the user equipment and instructing the user equipment to resume the s-RLC Used and the s-RLC is associated with the bearer and configured to perform a transmission corresponding to the second base station.

With reference to the fifth possible implementation mode of the fifth aspect, in the eighth possible implementation mode of the fifth aspect, the transmitting module is specifically,
Sending a second restart request to the second base station, wherein the second restart request comprises the following operations:
Reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the resuming. Transmitting to the second base station, or transmitting a second restart request to the second base station, wherein the second restart request performs the following operations:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC) and re-establishing the ps-RLC, wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform the re-starting transmission. It is configured to do

A sixth aspect of the embodiments of the present invention provides a second base station, wherein the second base station comprises:
A processing module configured to suspend data transmission of the bearer on the second base station;
A transmission module configured to transmit an interruption instruction to a first base station, wherein the interruption instruction indicates that the second base station has interrupted data transmission of a bearer on the second base station. And a transmission module.

In a first possible implementation of the sixth aspect, the processing module comprises:
According to the measurement result, a determination unit configured to determine that data transmission of the bearer on the second base station needs to be interrupted,
The following behavior:
A processing unit configured to perform a suspending, wherein the suspending a radio link control entity (ps-RLC) in the second base station, wherein the ps-RLC is associated with a bearer, or :
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), wherein the ps-RLC is associated with a bearer and includes a processing unit configured to perform the suspending.

  With reference to the first possible implementation scheme of the sixth aspect, in a second possible implementation scheme of the sixth aspect, the suspend instruction is such that the first base station transmits a suspend command to the user equipment. And the suspend command is used to instruct the user equipment to suspend data transmission of the bearer on the second base station.

With reference to the first possible implementation scheme of the sixth aspect, in a third possible implementation scheme of the sixth aspect, the second base station,
A receiving module configured to receive the resume request transmitted by the first base station,
The processing module is further configured to restart data transmission of the bearer on the second base station according to the restart request.

With reference to the third possible implementation mode of the sixth aspect, in the fourth possible implementation mode of the sixth aspect, the processing module is specifically,
According to the restart request, re-establish the radio link control entity (ps-RLC) in the second base station and restart the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the restart. It is composed of

With reference to the third possible mounting scheme of the sixth aspect, in the fifth possible mounting scheme of the sixth aspect, the measurement result is the following measurement target:
Obtained by the second base station by measuring at least one of the uplink signal strength of the user equipment, the uplink signal quality of the user equipment, and the number of retransmissions of the radio link control entity (ps-RLC) This is the result.

A seventh aspect of the embodiments of the present invention provides a user equipment, wherein the user equipment comprises:
A memory, comprising: a processor connected to the memory, wherein the memory is configured to store a set of program codes, wherein the processor invokes the program codes stored in the memory to generate a first program code according to an embodiment of the present invention. The method is configured to perform a method according to any one of the possible implementations of the aspects and the first aspect.

An eighth aspect of an embodiment of the present invention provides a first base station, wherein the first base station comprises:
A memory, and a processor connected to the memory, wherein the memory is configured to store a set of program codes, wherein the processor invokes the program codes stored in the memory to store a second set of program codes. The method according to any one of the possible implementation schemes of the aspect and the second aspect is configured to perform.

A ninth aspect of an embodiment of the present invention provides a second base station, wherein the second base station comprises:
A memory, and a processor connected to the memory, wherein the memory is configured to store a set of program codes, wherein the processor invokes the program codes stored in the memory to store the third set of program code in the third embodiment of the present invention. The method is configured to perform a method according to any one of the possible implementation schemes of the aspect and the third aspect.

  According to the radio bearer processing method, the user equipment, and the base station provided by the embodiment of the present invention, after interrupting the data transmission of the bearer on the second base station, To the first base station, which is used to indicate that the data transmission of the bearer on the base station has been interrupted. The user equipment alone can determine whether to interrupt data transmission of the bearer on the second base station and interact with the first base station to determine whether the bearer on the second base station Since it is not necessary for the first base station to determine whether to suspend data transmission, signaling overhead is reduced. In addition, the data transmission of the bearer on the second base station is suspended in a suspended manner and there is no need to delete the protocol entity related to the bearer, so that the data transmission of the bearer on the second base station is subsequently When restarted, the involved protocol entities do not need to be re-established, which effectively improves the radio bearer resource utilization.

FIG. 2 is a schematic diagram of a protocol stack architecture of an MCG bearer and a split bearer. FIG. 1 is a schematic diagram of signaling interaction of interconversion between MCG bearer and Split bearer in the prior art. 4 is a flowchart of a radio bearer processing method according to Embodiment 1 of the present invention. FIG. 8 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 2 of the present invention; FIG. 8 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 3 of the present invention; FIG. 9 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 4 of the present invention; 13 is a flowchart of a radio bearer processing method according to Embodiment 5 of the present invention. 16 is a flowchart of a radio bearer processing method according to Embodiment 6 of the present invention. FIG. 16 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 7 of the present invention; FIG. 13 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 8 of the present invention; FIG. 13 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 8 of the present invention; FIG. 19 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention; FIG. 16 is a schematic structural diagram of a first base station according to Embodiment 10 of the present invention; FIG. 16 is a schematic structural diagram of a second base station according to Embodiment 11 of the present invention. FIG. 17 is a schematic structural diagram of a user equipment according to Embodiment 12 of the present invention; FIG. 16 is a schematic structural diagram of a first base station according to Embodiment 13 of the present invention; FIG. 24 is a schematic structural diagram of a second base station according to Embodiment 14 of the present invention;

  In order to clarify the objects, technical solutions, and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. And complete. Of course, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by persons skilled in the art based on the embodiments of the present invention without creative efforts should fall within the protection scope of the present invention.

  FIG. 3 is a flowchart of a radio bearer processing method according to Embodiment 1 of the present invention. As shown in FIG. 3, the method provided in the present embodiment is particularly applicable to an LTE system, and the method specifically includes:

  Step 101. The user equipment interrupts data transmission of the bearer on the second base station.

  Step 102. The user equipment sends a suspend instruction to the first base station, and the suspend instruction is used to indicate that the user equipment has suspended the data transmission of the bearer on the second base station.

  In the LTE system, in addition to the MCG bearer and the Split bearer, another type of bearer, a Secondary Cell Group (hereinafter abbreviated as SCG) bearer, exists. Like the Split bearer, the SCG bearer can also convert to and from the MCG bearer. At the UE, one SCG bearer is associated with one PDCP entity and one RLC entity. In FIG. 1, the PDCP entity and the RLC entity are represented by s-PDCP and s-RLC2, respectively, where the s-RLC2 entity is associated with the corresponding MAC entity (s-MAC) and the s-MAC entity is Corresponding. The protocol entities in the UE have their respective peer protocol entities on the network side, and the s-PDCP entity, the s-RLC2 entity, and the s-MAC entity peer protocol entity are respectively peer peer entities in the SeNB. a ps-PDCP entity, a peer ps-RLC2 entity, and a peer ps-MAC entity. All downlink data packets of the SCG bearer are sent from the peer ps-PDCP entity to the peer ps-RLC2 entity and then to the peer ps-MAC entity, which then sends the s- Sent to the MAC entity. Then, the s-MAC entity finally conveys the received data packet to the s-PDCP entity via the s-RLC2 entity. The transmission path of the uplink data packet of the SCG bearer is opposite to the transmission path of the downlink data packet of the SCG bearer.

  Using the interconversion between Split bearer and MCG bearer as an example, FIG. 2 is a schematic diagram of the interconversion signaling interaction between MCG bearer and Split bearer in the prior art. As shown in FIG. 2, in the LTE system, by using the Split bearer as an example, the method in which the Split bearer is processed is such that when the Split bearer cannot satisfy the communication requirements, the Split bearer becomes the MCG bearer. This is a method in which the MCG bearer is converted back to the split bearer when the split bearer satisfies the communication requirements. In existing solutions implementing interconversion between MCG bearer and Split bearer, whether the interconversion between MCG bearer and Split bearer needs to be performed, UE performed measurement for SeNB In the process of determining the MeNB according to the measurement report later reported by the UE and performing the inter-switching between the MCG bearer and the Split bearer, the UE and the SeNB individually re-establish or delete the protocol entities related to the Split bearer There is a need to. Moreover, in practical applications, frequent inter-switching between the MCG bearer and the Split bearer is caused as the UE sometimes moves away and approaches the SeNB due to UE movement, which often results in heavy signaling This leads to loads and long signaling delays. For example, in FIG. 2, four air interface signalings (steps 2, 6, 8, and 12) and two backbone network signalings (steps 4 and 10) are triggered, which also leads to low utilization of radio bearer resources.

  In order to overcome the above drawbacks, in the radio bearer processing method provided by the present embodiment of the present invention, the radio bearer processing is performed in the following manner. The method provided by this embodiment of the present invention is particularly applicable to the case of processing a Split bearer or SCG bearer, the following embodiments are described by using the Split bearer as an example, the same method Note that applies to SCG bearers and only the relevant protocol entities need to be replaced, details will not be described again. In addition, in the following embodiments, the first base station indicates the master base station MeNB, and the second base station indicates the secondary base station SeNB.

Specifically, as shown in FIG. 4, FIG. 4 is a schematic diagram of a signaling interaction of a radio bearer processing method according to Embodiment 2 of the present invention. In the present embodiment, the UE can independently determine whether or not to perform the process of interrupting the Split bearer. Note that in this embodiment of the present invention, the data transmission of the bearer on the second base station is suspended, and suspend has a meaning equivalent to suspending. Specifically, suspending the data transmission of the bearer on the second base station in step 101 by the user equipment is performed in the following manner:
This is performed by the user equipment determining that data transmission of the bearer on the second base station needs to be interrupted according to the first measurement result. In particular,
The user equipment UE determines, according to the first measurement result, whether to suspend the data transmission of the Split bearer on the second base station SeNB,
If yes, the user equipment UE performs the following operations:
Suspending a radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with a bearer and corresponds to a second base station, implementing the suspending, or the user equipment The following behavior:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and a radio link in the user equipment Disrupting a control entity (s-RLC), wherein the s-RLC is associated with a bearer and implements a suspend corresponding to a second base station.

The first measurement result is the following measurement object:
Status of the radio link between the user equipment UE and the second base station SeNB, signal strength of the second base station SeNB, signal quality of the second base station SeNB, and transmitted by the user equipment UE via a bearer The result obtained by the user equipment UE by measuring at least one of the amount or volume of data packets to be performed.

  The premise of executing the method of the present embodiment is that a Split bearer has been established between the UE and the MeNB and SeNB. According to the first measurement result obtained by measuring at least one of the previously set measurement target, according to the Split bearer is not suitable for data transmission on the SeNB, UE, on the SeNB It decides to interrupt the data transmission of the Split Bearer.

  The UE decides to suspend the transmission of the Split bearer on the SeNB, so that the UE no longer receives the Split bearer downlink data from the SeNB and no longer transmits the Split bearer uplink data to the SeNB. Means to do.

  Specifically, the UE may determine the UE according to the measurement result of the SeNB. For example, the UE performs radio link monitoring (Radio Link Monitoring, hereinafter abbreviated to RLM) to the SeNB, and according to the RLM, a radio link failure (Radio Link Failure, abbreviated to the following) in a radio link between the UE and the SeNB. When the UE determines that the RLF has occurred, the UE determines to execute the suspension. As another example, the UE measures the signal strength or signal quality of the SeNB, and according to the measurement result, determines that the signal strength or the signal quality of the SeNB is lower than a preset threshold, and the UE stops the interruption. Decide to do it. Alternatively, the UE may decide to perform the interruption according to the amount of data packets to be transmitted via the split bearer or the buffer status of the data packets to be transmitted via the split bearer. For example, when the UE determines that the amount of data packets to be transmitted via the Split bearer or the buffer size of the data packets to be transmitted via the Split bearer is smaller than a preset value, the UE may suspend. To decide.

  After the UE decides to suspend the split bearer, the UE first needs to suspend the protocol entity that is in the UE and associated with the split bearer. Specifically, this is the following scheme: by the UE to interrupt the radio link control entity (s-RLC) in the UE, wherein the s-RLC is associated with the Split bearer and the second base station Corresponding to SeNB, which is implemented in interruption or in the following manner: by the UE, resetting a medium access control entity (s-MAC) in the UE, wherein the s-MAC is associated with the Split bearer. Associated with the second base station SeNB, resetting, and suspending a radio link control entity (s-RLC) in the UE, wherein the s-RLC is associated with a Split bearer and the second May be implemented in the interruption corresponding to the base station SeNB.

  Resetting the s-MAC entity specifically includes emptying the buffer used by the s-MAC, re-initializing the status variables used by the s-MAC, Suspending the s-RLC entity, including stopping the timer that has been performed, specifically, stopping processing of the data packet by the s-RLC, for example, stopping transmission or reception of the data packet. Including.

  Then, the UE transmits a suspend instruction to the MeNB, and the suspend instruction is used to indicate that the UE has suspended the data transmission of the Split bearer on the second base station SeNB.

  As shown in FIG. 4, in the process of interrupting the split bearer by the UE, only one air interface signaling, i.e., a stop instruction is transmitted to the MeNB, and compared to FIG. 2, one air interface signaling Is saved.

  In some cases, the interruption instruction may further include an interruption cause, for example, when the UE detects that an RLF has occurred in the radio link between the UE and the SeNB, the interruption cause included in the interruption instruction is RLF May be the reason for causing

  In this embodiment, after interrupting the data transmission of the bearer on the second base station, the user equipment is used to indicate that the user equipment has interrupted the data transmission of the bearer on the second base station. A suspend instruction is transmitted to the first base station. The user equipment alone can determine whether to interrupt data transmission of the bearer on the second base station and interact with the first base station to determine whether the bearer on the second base station Since it is not necessary for the first base station to determine whether to suspend data transmission, signaling overhead is reduced. In addition, the data transmission of the bearer on the second base station is suspended in a suspended manner and there is no need to delete the protocol entity related to the bearer, so that the data transmission of the bearer on the second base station is subsequently When restarted, the involved protocol entities do not need to be re-established, which effectively improves the radio bearer resource utilization.

  In some cases, the suspend indication is further used to instruct the MeNB to send a suspend request to the SeNB, and the suspend request is used to request the SeNB to suspend data transmission of the bearer on the SeNB. As a result, the SeNB suspends the data transmission of the Split bearer according to the suspension request.

  Specifically, as shown in FIG. 4, after receiving the suspend instruction transmitted by the UE, MeNB transmits a suspend request to SeNB according to the suspend instruction, and after receiving the suspend request, SeNB is Suspending the radio link control entity (ps-RLC) in the SeNB, wherein the ps-RLC is associated with a split bearer, may perform a suspend, or a medium access control entity in the SeNB Resetting (ps-MAC), wherein the ps-MAC is associated with a bearer, resetting, and suspending a radio link control entity (ps-RLC) in the second base station, The ps-RLC may be associated with the bearer and perform a suspend. The process of resetting the ps-MAC entity of the Split bearer and suspending the ps-RLC entity of the Split bearer is similar to the process of resetting the s-MAC entity of the Split bearer by the UE and suspending the s-RLC entity of the Split bearer And details will not be described again. It is an optional step for the SeNB to reset the medium access control entity (ps-MAC) in the SeNB, associated with the Split bearer, and only when the UE resets the s-MAC during the interruption, the SeNB It should be understood that the ps-MAC needs to be reset accordingly.

  Further, after transmitting the interruption instruction to the MeNB by the UE, the method further includes, by the UE, interacting with the MeNB according to the second measurement result and resuming the data transmission of the Split bearer on the SeNB.

  The second measurement results are the following measurement targets: the status of the radio link between the UE and the SeNB, the signal strength of the SeNB, the signal quality of the SeNB, and the amount of data packets to be transmitted by the UE via the Split bearer Or a result obtained by the UE by measuring at least one of the volumes.

In some cases, the UE interacts with the MeNB according to the second measurement result and resumes the data transmission of the Split bearer on the SeNB according to the scheme shown in FIG.
By the UE, according to the second measurement result, to determine that the data transmission of the bearer on the SeNB needs to be restarted,
By the UE, to re-establish the radio link control entity (s-RLC) in the UE and restart the s-RLC, wherein the s-RLC is associated with the bearer and corresponds to the SeNB,
By the UE, by transmitting a restart instruction to the MeNB, the restart instruction is used to instruct the MeNB to transmit a restart request to the SeNB, and the restart request restarts data transmission of the bearer on the SeNB. Used to request the SeNB to transmit and transmit.

Specifically, the UE determines that data transmission of the bearer on the SeNB needs to be restarted according to the second measurement result according to the following method: UE, according to the second measurement result, according to the SeNB Determining whether to resume data transmission of the above Split bearer;
If yes, by the UE to re-establish the radio link control entity (s-RLC) in the UE and restart the s-RLC, wherein the s-RLC is associated with the Split bearer and corresponds to the SeNB, Resuming and, by the UE, is to transmit a restart instruction to MeNB, as a result, MeNB transmits a first restart request to SeNB according to the restart instruction, SeNB on the SeNB according to the first restart request Resume and transmit the data transmission of the Split Bearer.

  Specifically, the UE may determine to restart according to a new measurement result for the SeNB. For example, the UE performs radio link monitoring (Radio Link Monitoring, hereinafter abbreviated as RLM) to the SeNB, and determines that the radio link between the UE and the SeNB has returned to a normal connection state according to the RLM. The UE decides to resume. As another example, the UE measures the signal strength or signal quality of SeNB, and according to the measurement result, when it is determined that the signal strength or signal quality of SeNB is higher than a preset threshold, the UE restarts. To be determined. Alternatively, the UE may make a decision according to the amount of data packets to be transmitted via the split bearer or the buffer status of the data packets to be transmitted via the split bearer. For example, when the UE determines that the amount of data packets to be transmitted via the Split bearer or the buffer size of the data packets to be transmitted via the Split bearer is larger than a preset value, the UE may restart. To decide.

  In addition, after receiving the restart request, the SeNB re-establishes the radio link control entity (ps-RLC) in the SeNB and restarts the ps-RLC, where the ps-RLC is associated with the Split bearer Resuming, or resetting the medium access control entity (ps-MAC) in the SeNB, associated with the Split bearer, and re-establishing the radio link control entity (ps-RLC) in the SeNB, Resume the ps-RLC, where the ps-RLC is associated with the Split bearer and do the resume. Re-establishing the ps-RLC entity specifically includes, for example, transmitting a successfully received data packet to the MeNB, discarding a data packet that needs to be transmitted but has not been successfully transmitted, This includes stopping and resetting the timer used by the ps-RLC entity, re-initializing the status variables used by the ps-RLC entity, and so on. Restarting ps-RLC means starting processing of data packets by the ps-RLC entity.

  Note that the measurement report shown in FIG. 5 corresponds to the second measurement report in the present embodiment.

Furthermore, in some cases, the UE interacts with the MeNB according to the second measurement result and resumes the data transmission of the Split bearer on the SeNB, according to the method shown in FIG. 4 or FIG.
By the UE, by transmitting the second measurement result to the MeNB, as a result, MeNB, according to the second measurement result, determine whether to restart the data transmission of the Split bearer on the SeNB, transmission To do
MeNB, according to the second measurement result, if it is determined that the data transmission of the Split bearer on the SeNB needs to be resumed, by the UE, to receive the resume command transmitted by the MeNB, according to the resume command, Re-establishing a radio link control entity (s-RLC) in the UE and restarting the s-RLC, wherein the s-RLC is associated with a Split bearer and corresponds to the SeNB, and is performed in the restarting. In some cases. In some cases, the resume command includes a bearer identifier for a Split bearer. In this case, in addition to transmitting the restart command to the UE, the MeNB may further transmit a second restart request to the SeNB, and the SeNB performs the following operation according to the second restart request: Re-establishing a radio link control entity (ps-RLC) and restarting the ps-RLC, wherein the ps-RLC is associated with a bearer, performing a restart, or a second restart request According to the following operations: resetting the medium access control entity (ps-MAC) in the SeNB, associated with the bearer, and re-establishing the radio link control entity (ps-RLC) in the SeNB, Resuming the RLC, where the ps-RLC is associated with the bearer and performing the resuming.

  It should be noted that the measurement reports shown in FIGS. 4 and 6 correspond to the second measurement report in the present embodiment. As can be seen from FIGS. 4, 5, and 6, the difference between the embodiment shown in FIG. 5 and the embodiment shown in FIG. 6 is mainly due to the MeNB restarting the split bearer. The decision or the UE decides to resume the Split bearer, and when the UE decides to resume the Split bearer, the air interface signaling overhead can be further reduced. Moreover, the difference between the embodiment shown in FIG. 4 and the embodiment shown in FIG. 6 is mainly that in FIG. 4, after the MeNB receives the suspend indication transmitted by the UE, The fact that the split bearer is already suspended, that is, the data packet of the corresponding Split bearer is no longer transmitted to the SeNB, and the data packet of the corresponding Split bearer is no longer received from the SeNB. Therefore, in order to further avoid the unnecessary processing load of the SeNB, the MeNB transmits a suspend request to the SeNB, and as a result, the SeNB also suspends the data transmission of the Split bearer on the SeNB.

  In the above embodiment, the user equipment alone can determine whether to interrupt the data transmission of the Split bearer on the second base station, and interact with the first base station, Since it is not necessary for the first base station to determine whether to suspend the data transmission of the Split bearer on the base station, signaling overhead is reduced. In addition, the data transmission of the Split bearer on the SeNB is suspended in a suspend manner, and there is no need to delete the protocol entity related to the bearer, and as a result, when the data transmission of the Split bearer on the SeNB is subsequently resumed, Split The bearer is restarted and there is no need to re-establish the protocol entities related to the split bearer, which effectively improves the radio bearer resource utilization. Moreover, the user equipment alone can also determine whether to resume the data transmission of the Split Bearer, thereby further reducing signaling overhead.

  Further, in some cases, as shown in FIG. 9, the UE alone, unlike the above embodiment to determine whether to suspend the bearer, in FIG. 9, the UE was carried by the MeNB The corresponding suspend operation may be performed according to the suspend command.

  Specifically, the UE receives the suspend command transmitted by the MeNB, and the suspend command is used to instruct the UE to suspend the data transmission of the Split bearer on the SeNB. The suspend command may be transmitted to the UE by the MeNB according to another suspend instruction, and another suspend instruction is transmitted to the MeNB by the SeNB after the SeNB suspends the data transmission of the Split bearer on the SeNB. Alternatively, the suspend command may be generated by the MeNB after the MeNB determines to suspend the data transmission of the Split bearer on the SeNB according to the first measurement result reported by the UE.

The UE performs the following actions according to the suspend command:
Suspending the radio link control entity (s-RLC) in the UE, wherein the s-RLC is associated with a bearer and corresponds to the SeNB, implementing the suspending, or
The UE operates as follows:
Resetting a medium access control entity (s-MAC) in the UE, wherein the s-MAC is associated with a bearer, corresponding to a SeNB, resetting, and
Disrupting a radio link control entity (s-RLC) in the UE, wherein the s-RLC is associated with a bearer and implements a suspend corresponding to the SeNB.

  FIG. 7 is a flowchart of a radio bearer processing method according to Embodiment 5 of the present invention. As shown in FIG. 7, the method includes:

  Step 201. The first base station receives the suspend instruction sent by the user equipment, the suspend instruction such that the user equipment suspends data transmission of the bearer on the second base station according to the first measurement result. After being determined, it is transmitted by the user equipment.

  Step 202. The first base station determines that the user equipment suspends data transmission of the bearer on the second base station according to the suspend instruction.

  Still using the Split bearer as an example, the premise of performing the method of the present embodiment is that a Split bearer has been established between the UE and the MeNB and SeNB. According to the first measurement result obtained by measuring at least one of the preset measurement targets, when determining that the Split bearer is not suitable for data transmission on the SeNB, UE, Split on the SeNB It is determined that the data transmission of the bearer is interrupted.

Specifically, the UE uses the following scheme:
By the UE, according to the first measurement result, to determine whether to suspend the data transmission of the Split bearer on the SeNB,
If yes, depending on the UE, the following actions:
Suspending a radio link control entity (s-RLC) in the UE, wherein the s-RLC is associated with a bearer and corresponds to the SeNB, implementing the suspending, or
Depending on the UE, the following actions:
Resetting a medium access control entity (s-MAC) in the UE, wherein the s-MAC is associated with a bearer, corresponding to a SeNB, resetting, and
Disrupting the radio link control entity (s-RLC) in the UE, wherein the s-RLC is associated with the bearer and corresponding to the SeNB, and performing the suspending, the split bearer on the SeNB It may be decided to interrupt data transmission.

The first measurement result is the following preset measurement object:
Measuring at least one of the status of the radio link between the UE and the SeNB, the signal strength of the SeNB, the signal quality of the SeNB, and the amount or volume of data packets to be transmitted by the UE via the bearer Is the result obtained by the UE.

  Specifically, the UE may determine the UE according to the measurement result of the SeNB. For example, the UE performs radio link monitoring (Radio Link Monitoring, hereinafter abbreviated to RLM) to the SeNB, and according to the RLM, a radio link failure (Radio Link Failure, abbreviated to the following) in a radio link between the UE and the SeNB. UE determines that RLF) has occurred, the UE determines as described above. As another example, the UE measures the signal strength or signal quality of SeNB, and according to the measurement result, when it is determined that the signal strength or signal quality of SeNB is lower than a preset threshold, the UE performs the above. To be determined. The UE may make the above determination according to the amount of data packets to be transmitted via the split bearer or the buffer status of the data packets to be transmitted via the split bearer. For example, if the UE determines that the amount of data packets to be transmitted via the Split bearer, or the buffer size of the data packets to be transmitted via the Split bearer is smaller than a preset value, the UE may Determined as follows.

  The UE decides to suspend the transmission of the Split bearer on the SeNB, so that the UE no longer receives the Split bearer downlink data from the SeNB and no longer transmits the Split bearer uplink data to the SeNB. Means to do.

  Resetting the s-MAC entity specifically includes emptying the buffer used by the s-MAC, re-initializing the status variables used by the s-MAC, Suspending the s-RLC entity, including stopping the timer that has been performed, specifically, stopping processing of the data packet by the s-RLC, for example, stopping transmission or reception of the data packet. Including.

  Next, the UE transmits an interruption instruction to the MeNB, and after receiving the interruption instruction, the MeNB determines that the UE has interrupted the data transmission of the Split bearer on the SeNB.

  In this embodiment, after interrupting the data transmission of the bearer on the second base station, the user equipment is used to indicate that the user equipment has interrupted the data transmission of the bearer on the second base station. A suspend instruction is transmitted to the first base station. The user equipment alone can determine whether to interrupt data transmission of the bearer on the second base station and interact with the first base station to determine whether the bearer on the second base station Since it is not necessary for the first base station to determine whether to suspend data transmission, signaling overhead is reduced. In addition, the data transmission of the bearer on the second base station is suspended in a suspended manner and there is no need to delete the protocol entity related to the bearer, so that the data transmission of the bearer on the second base station is subsequently When restarted, the involved protocol entities do not need to be re-established, which effectively improves the radio bearer resource utilization.

In some cases, after the MeNB receives the suspend indication sent by the UE, the method includes:
By MeNB, by transmitting a suspend request to SeNB, the suspend request is used to request the SeNB to suspend the data transmission of the bearer on the SeNB, as a result, SeNB, according to the suspend request, The following operations: suspending the radio link control entity (ps-RLC) in the SeNB, wherein the ps-RLC is associated with a bearer, performing the suspending, or the SeNB according to the suspend request, The following operations: resetting a medium access control entity (ps-MAC) in the SeNB, where the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-RLC) in the SeNB The ps-RLC is further associated with the bearer, performing the suspending, and transmitting. It is an optional step for the SeNB to reset the medium access control entity (ps-MAC) in the SeNB, associated with the Split bearer, and only when the UE resets the s-MAC during the interruption, the SeNB It should be understood that the ps-MAC needs to be reset accordingly.

Further, in some cases, after the MeNB receives the suspend indication sent by the UE, the method includes:
By MeNB, it is to receive the restart instruction transmitted by the UE, in some cases, the restart instruction carries the bearer identifier of the Split bearer, UE, according to the second measurement result, the Split bearer on the SeNB After determining that data transmission needs to be resumed, a resume indication is sent by the UE, receiving,
By MeNB, according to the restart instruction, by transmitting a first restart request to the SeNB, the first restart request is used to request the SeNB to restart the data transmission of the bearer on the SeNB, As a result, the SeNB further restarts and transmits the data transmission of the Split bearer according to the first restart request.

  In an actual application, the UE may be set to periodically measure a preset measurement target at a specific time interval, and the UE may, according to the measurement result, transmit data of the Split bearer on the SeNB. If, after deciding to suspend the transmission, another measurement obtained by the UE in a subsequent measurement indicates that the data transmission can be continued via the Split bearer, the UE is shown in FIG. Thus, the split bearer is determined to be restarted, and a restart instruction is transmitted to the MeNB.

  Specifically, the UE may determine to restart according to a new measurement result of a preset measurement target, that is, a second measurement result. For example, the UE performs radio link monitoring (Radio Link Monitoring, hereinafter abbreviated as RLM) to the SeNB, and determines that the radio link between the UE and the SeNB has returned to a normal connection state according to the RLM. The UE decides to resume. As another example, the UE measures the signal strength or signal quality of SeNB, and according to the measurement result, when it is determined that the signal strength or signal quality of SeNB is higher than a preset threshold, the UE restarts. To be determined. As another example, the UE may make a decision according to the amount of data packets to be transmitted over the split bearer or the buffer status of the data packets to be transmitted over the split bearer. For example, when the UE determines that the amount of data packets to be transmitted via the Split bearer or the buffer size of the data packets to be transmitted via the Split bearer is larger than a preset value, the UE may restart. To decide.

  After receiving the restart instruction transmitted by the UE, the MeNB transmits a first restart request to the SeNB according to the restart instruction, and as a result, the SeNB receives the data of the Split bearer on the SeNB according to the first restart request. Resume transmission.

  Specifically, after receiving the first restart request, the SeNB re-establishes the following operation according to the first restart request: a radio link control entity (ps-RLC) in the SeNB, and establishes the ps-RLC. Resuming, wherein the ps-RLC is associated with a bearer, implementing resuming, or according to a first resuming request, the following operations: Medium access control entity (ps-MAC) in SeNB Resetting, wherein the ps-MAC is associated with a bearer, resetting, and re-establishing a radio link control entity (ps-RLC) in the SeNB and restarting the ps-RLC, Enforce ps-RLC restart associated with the bearer. Re-establishing the ps-RLC entity specifically includes, for example, transmitting a successfully received data packet to the MeNB, discarding a data packet that needs to be transmitted but has not been successfully transmitted, This includes stopping and resetting the timer used by the ps-RLC entity, re-initializing the status variables used by the ps-RLC entity, and so on. Restarting ps-RLC means starting processing of data packets by the ps-RLC entity.

  In some cases, the restart request sent by the MeNB may further include a cause indication, which is used to indicate the reason for restarting the Split bearer. For example, when the result of the measurement for the SeNB by the UE is that an RLF has occurred in the radio link between the UE and the SeNB, the cause indication indicates that the RLF between the UE and the SeNB has been removed. May have RLF value.

  In some cases, the restart request may include two lists. One list is used to contain the identifiers of the bearers that the SeNB needs to add, and the other list is used to contain the identifiers of the bearers that the SeNB needs to release. The identifier of the Split bearer that needs to be restarted is contained in both of the two lists, and thus the SeNB is notified that the Split bearer needs to be restarted.

Further, in some cases, after the MeNB receives the suspend indication sent by the UE, the method includes:
By MeNB, to determine that the data transmission of the bearer on SeNB needs to be restarted,
By MeNB, to send a resume command to the user equipment, to send a second resume request to the SeNB, the resume command is used to instruct the UE to resume data transmission of the bearer on the SeNB Transmitting, wherein the second resume request is used to request the SeNB to resume data transmission of the bearer on the SeNB.

Specifically, the MeNB determines that the data transmission of the bearer on the SeNB needs to be restarted, according to the following determination method: the MeNB determines whether to restart the data transmission of the Split bearer on the SeNB. Judge,
If Yes, by MeNB, to send a restart command to the UE, and to send a second restart request to SeNB, as a result, UE and SeNB, according to the restart command and the second restart request, on the SeNB May be implemented in resuming and transmitting data transmissions of the bearers individually.

To determine whether the MeNB should restart the data transmission of the Split bearer on the SeNB, the following method is used:
By MeNB, receiving the second measurement result sent by the UE,
In some cases, the MeNB determines whether to restart the data transmission of the Split bearer on the SeNB according to the second measurement result.

  UE, alone, according to its new measurement result for SeNB, unlike the above description to determine whether to restart the data transmission of the Split bearer on SeNB, in the present embodiment, FIG. 4 and FIG. As shown, whether to restart the data transmission of the Split bearer on the SeNB, the following method: by the UE, by transmitting the second measurement result to the MeNB, by the MeNB, according to the second measurement result, The determination may be made in determining whether to restart the data transmission of the Split bearer on the SeNB. Similarly, when the second measurement result indicates that the data transmission of the Split bearer on the SeNB can be continued, it is determined to restart the data transmission of the Split bearer on the SeNB.

  In some cases, the MeNB should restart data transmission of the Split bearer on the SeNB according to other factors, for example, according to factors such as the amount of data packets to be transmitted via the Split bearer as measured by the MeNB. May be determined.

  Next, the MeNB transmits a restart command to the UE. As a result, the UE restarts data transmission of the Split bearer on the SeNB according to the restart command. Specifically, the UE re-establishes a radio link control entity (s-RLC) in the UE according to the restart command, restarts the s-RLC, and the s-RLC is associated with the bearer and corresponds to the SeNB. In addition, the MeNB also transmits a second restart request to the SeNB, and as a result, the SeNB restarts the data transmission of the Split bearer on the SeNB according to the second restart request. Specifically, according to the second restart request, the SeNB re-establishes the following operation: a radio link control entity (ps-RLC) in the SeNB and restarts the ps-RLC, and the ps-RLC Performing a restart associated with a bearer, or resetting a medium access control entity (ps-MAC) in the SeNB according to a second restart request, wherein the ps-MAC Is associated with the bearer, resetting, and re-establishing a radio link control entity (ps-RLC) in the SeNB and resuming the ps-RLC, wherein the ps-RLC is associated with the bearer Do what you want.

  In this embodiment, the user equipment alone can determine whether to interrupt the data transmission of the bearer and interact with the first base station to transmit the data transmission of the bearer on the second base station. Since it is not necessary for the first base station to determine whether or not to suspend the signaling, signaling overhead is reduced. In addition, the data transmission of the bearer on the second base station is suspended in a suspended manner and there is no need to delete the protocol entity related to the bearer, so that the data transmission of the bearer on the second base station is subsequently When restarted, the bearers are restarted and the protocol entities associated with the bearers do not need to be re-established, thereby effectively improving the radio bearer resource utilization. Moreover, the user equipment alone can also determine whether to resume data transmission of the bearer on the second base station, thereby further reducing signaling overhead.

FIG. 8 is a flowchart of a radio bearer processing method according to Embodiment 6 of the present invention.
As shown in FIG. 8, the method includes:

  Step 301. The second base station suspends data transmission of the bearer on the second base station.

  Step 302. The second base station sends an interruption instruction to the first base station, and the interruption instruction is used to indicate that the second base station has interrupted data transmission of the bearer on the second base station. .

Still using the Split bearer as an example, all the above embodiments are described in terms of the UE actively triggering the process of interrupting the Split bearer. In this embodiment, in some cases, the SeNB may trigger a process of interrupting the data transmission of the bearer on the second base station. Specifically, the SeNB may determine that the data transmission of the bearer on the SeNB needs to be interrupted according to the measurement result. Specifically, this is based on the following decision method:
By SeNB, according to the measurement result, determine whether to suspend the data transmission of the bearer on the second base station,
If yes, by the SeNB, perform the following actions: suspend the radio link control entity (ps-RLC) in the SeNB, where the ps-RLC is associated with the bearer, or suspend, or The following operations are performed by the SeNB: resetting the medium access control entity (ps-MAC) in the SeNB, where the ps-MAC is associated with the bearer, resetting, and the radio link control entity in the SeNB ( ps-RLC), where ps-RLC is associated with the bearer and may be implemented in performing the suspending.

In order to distinguish from another measurement result of the UE below, the above measurement result that SeNB determines that the data transmission of the bearer on the second base station needs to be interrupted accordingly, the first measurement result The first measurement result is called the following measurement object:
The result obtained by the SeNB by measuring at least one of the uplink signal strength of the UE, the uplink signal quality of the UE, and the number of retransmissions of the radio link control entity (ps-RLC). Specifically, the SeNB may decide to suspend according to the measurement of the strength or quality of the uplink signal transmitted by the UE, or the SeNB may have transmitted a data packet to the UE by the ps-RLC Later, the ps-RLC entity may decide to suspend according to whether the maximum number of retransmissions has been reached and if the ps-RLC does not get a successful reception indication fed back by the UE, After the packet is repeatedly transmitted and the number of times the ps-RLC repeatedly transmits the same data packet reaches a preset value, the SeNB determines to suspend.

  The SeNB then sends a suspend instruction to the MeNB, and in some cases, the suspend instruction carries the bearer identifier of the Split bearer, so that the MeNB identifies the corresponding UE according to the bearer identifier carried in the suspend instruction Then, in accordance with the suspend instruction, the suspend command is transmitted to the specified UE. As a result, the UE suspends the data transmission of the Split bearer on the SeNB according to the suspend command. The suspend operation of the UE has been described in the above embodiment, and the details will not be described again.

  While the Split bearer between the UE and the SeNB has been interrupted, the UE has, at specific time intervals, the following preset measurement targets: the status of the radio link between the UE and the SeNB, the signal strength of the SeNB, Periodically measure at least one of the signal quality of the SeNB and the amount or volume of data packets to be transmitted by the UE via the Split bearer. In some cases, the UE alone may determine whether to restart the data transmission of the Split bearer on the SeNB according to the measurement result, that is, the second measurement result.

  Specifically, the UE may determine to restart according to the second measurement result. For example, the UE performs radio link monitoring (Radio Link Monitoring, hereinafter abbreviated as RLM) to the SeNB, and determines that the radio link between the UE and the SeNB has returned to a normal connection state according to the RLM. The UE decides to resume. As another example, the UE measures the signal strength or signal quality of SeNB, and according to the measurement result, when it is determined that the signal strength or signal quality of SeNB is higher than a preset threshold, the UE restarts. To be determined. As another example, the UE may make the above determination according to the amount of data packets to be transmitted via the split bearer or the buffer status of the data packets to be transmitted via the split bearer. For example, when the UE determines that the amount of data packets to be transmitted via the Split bearer or the buffer size of the data packets to be transmitted via the Split bearer is larger than a preset value, the UE may restart. To decide.

  Further, in some cases, as shown in FIG. 9, the UE may transmit the second measurement result to the MeNB, as a result, MeNB, according to the second measurement result, the data of the Split bearer on the SeNB The conditions for determining whether to resume transmission and for determining the MeNB to resume data transmission are the same as the conditions for the UE, and details will not be described again.

  Next, MeNB, according to the second measurement result, after determining that the data transmission of the bearer on the SeNB needs to be restarted, as shown in FIG. 9, the MeNB transmits a restart request to the SeNB, The SeNB restarts the data transmission of the Split bearer on the SeNB according to the restart request. Specifically, the SeNB re-establishes the radio link control entity (ps-RLC) in the SeNB according to the restart request, restarts the ps-RLC, and the ps-RLC is associated with the bearer.

  In some cases, MeNB, according to the second measurement result, after determining to restart the data transmission of the Split bearer on SeNB, MeNB, further, may transmit a restart command to the UE, as a result, The UE resumes data transmission of the Split bearer.

  10 (a) and 10 (b) are schematic diagrams of a signaling interaction of a radio bearer processing method according to Embodiment 8 of the present invention. Further, in some cases, as shown in FIG. 10 (a) based on the embodiment shown in FIG. 5, and as shown in FIG. 10 (b) based on the embodiment shown in FIG. As such, in the case where the UE actively triggers the interruption of the Split bearer, and the MeNB does not transmit the interruption request to the SeNB after receiving the interruption instruction transmitted by the UE, the SeNB is the UE uplink signal strength or According to its measurement of quality or according to the measurement result of the number of retransmissions of the radio link control entity (ps-RLC) in the SeNB, the data transmission of the Split bearer on the SeNB is interrupted and the SeNB associated with the Split bearer May be determined to reset the Medium Access Control Entity (ps-MAC) in the SNB and suspend the Radio Link Control Entity (ps-RLC) in the SeNB associated with the Split Bearer. Correspondingly, after receiving the restart request transmitted by the MeNB, the SeNB re-establishes the radio link control entity (ps-RLC) in the SeNB corresponding to the Split bearer, and in the SeNB corresponding to the Split bearer. It is only necessary to restart the radio link control entity (ps-RLC) and there is no longer a need to reset the medium access control entity (ps-MAC) in the SeNB corresponding to the split bearer.

  It should be understood that in the process in which the UE actively triggers the interruption of the Split bearer, the SeNB can trigger the process of interrupting the Split bearer by the SeNB, regardless of whether the MeNB sends an interruption request to the SeNB. At a similar point in time, the UE and the SeNB encounter a similar radio channel environment, and the result of measuring the signal of the SeNB or the link between the two by the UE is the result of measuring the signal of the UE or the link between the two by the SeNB. Therefore, even when the SeNB does not receive the suspend request from the MeNB, the SeNB can determine whether to suspend the data transmission of the Split bearer on the SeNB according to the measurement result.

  In this embodiment, the second base station alone can determine whether to interrupt the data transmission of the Split bearer, and there is no need to interact with the first base station, so signaling overhead is reduced. Be reduced. In addition, the data transmission of the Split bearer on the second base station is stopped by interrupting the Split bearer, without having to delete the protocol entity related to the Split bearer, so that the second base station When the data transmission of the above Split Bearer is resumed, the Split Bearer is resumed and there is no need to re-establish the protocol entities related to the Split Bearer, thereby effectively improving the utilization rate of radio bearer resources . Moreover, the user equipment alone can also determine whether to resume data transmission of the Split bearer on the second base station, thereby further reducing signaling overhead.

FIG. 11 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention. As shown in FIG. 11, the user equipment includes:
A processing module 11 configured to interrupt data transmission of the bearer on the second base station;
A transmission module 12 configured to transmit a suspend instruction to a first base station, wherein the suspend instruction is used to indicate that a user equipment has suspended data transmission of a bearer on a second base station. And a transmission module 12.

Further, the processing module 11
According to the first measurement result, a determination unit 111 configured to determine that data transmission of the bearer on the second base station needs to be interrupted,
The following behavior:
Disrupting a radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with a bearer and is configured to implement the suspending corresponding to a second base station. Processing unit 112, or the following operations:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and a radio link in the user equipment Disrupting a control entity (s-RLC), wherein the s-RLC is associated with a bearer and corresponds to a second base station, including a processing unit 112 configured to perform the discontinuing. .

Further, the user equipment
A receiving module 21 configured to receive a suspend command sent by a first base station, wherein the suspend command instructs a user equipment to suspend data transmission of a bearer on a second base station. Used for receiving module 21
Further comprising
Correspondingly, the processing unit 112 operates as follows:
Interrupting a radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with a bearer and is further configured to perform the interrupting corresponding to a second base station. Or the processing unit 112 performs the following operations:
Resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station, resetting, and a radio link in the user equipment Disrupting a control entity (s-RLC), wherein the s-RLC is associated with a bearer and is further configured to perform a suspend corresponding to a second base station.

  Further, the suspend indication is further used to instruct the first base station to send a suspend request to the second base station, the suspend request suspending data transmission of the bearer on the second base station. Used to request the second base station to do so.

Further, the determining unit 111 is further configured to determine, according to the second measurement result, that data transmission of the bearer on the second base station needs to be resumed,
The processing unit is further configured to re-establish a radio link control entity (s-RLC) in the user equipment and restart the s-RLC, wherein the s-RLC is associated with a bearer and corresponds to a second base station And
The processing module 11
A transmission unit 113 configured to send a restart instruction to a first base station, wherein the restart instruction instructs the first base station to send a restart request to a second base station. The transmitting unit 113, wherein the transmitting unit 113 is used to request the second base station to resume data transmission of the bearer on the second base station.
Further included.

Further, the transmitting unit 113 is further configured to transmit the second measurement result to the first base station,
The processing unit 112 receives the resume command transmitted by the first base station, re-establishes a radio link control entity (s-RLC) in the user equipment according to the resume command, and resumes the s-RLC. Further configured, the s-RLC is associated with the bearer and corresponds to the second base station, and the first base station resumes data transmission of the bearer on the second base station according to the second measurement result. After determining that a restart is needed, a restart command is sent by the first base station.

  The user equipment of the present embodiment may be configured to perform the technical solution of the method embodiment illustrated in FIG. The implementation principles and technical effects of the user equipment are similar to those of the method embodiment shown in FIG. 3, and details will not be described again.

FIG. 12 is a schematic structural diagram of a first base station according to Embodiment 10 of the present invention. As shown in FIG. 12, the first base station includes:
A receiving module 31 configured to receive the suspend instruction sent by the user equipment,
A processing module configured to determine that the user equipment suspends data transmission of the bearer on the second base station according to the suspend instruction.

Further, the first base station
A transmission module 33 configured to transmit a suspend request to a second base station, wherein the suspend request requests the second base station to suspend data transmission of a bearer on the second base station. The transmission module 33 used to
Further included.

Specifically, the transmission module 33 specifically includes:
Sending a suspend request to the second base station, wherein the suspend request comprises the following operations:
Interrupting a radio link control entity (ps-RLC) in a second base station, wherein the ps-RLC is associated with a bearer, requesting the second base station to perform the interrupting Used, transmitting, or sending a suspend request to a second base station, wherein the suspend request comprises the following operations:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), wherein the ps-RLC is associated with the bearer and is used to request the second base station to perform the suspending, and is configured to perform the transmitting. You.

Further, the receiving module 31
Further configured to receive a resume instruction sent by the user equipment;
The sending module 33 is further configured to send a first restart request to the second base station according to the restart instruction, wherein the first restart request restarts data transmission of the bearer on the second base station. Used to request the second base station.

Further, the transmission module 33 specifically includes:
Sending a first restart request to the second base station according to the restart instruction, wherein the first restart request has the following operations:
Reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the second resuming. Transmitting to the second base station in accordance with the restart instruction, wherein the first restart request comprises the following operations: :
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC) and re-establish the ps-RLC, wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform the re-transmission. It is configured to do

Further, the first base station
A determining module configured to determine that data transmission of the bearer on the second base station needs to be interrupted;
Further comprising
The sending module 33 is further configured to send a resume command to the user equipment and send a second resume request to the second base station, wherein the resume command comprises a data transmission of a bearer on the second base station. Used to instruct the user equipment to resume, the second resume request is used to request the second base station to resume data transmission of the bearer on the second base station .

Further, the receiving module 31
Further configured to receive a second measurement transmitted by the user equipment;
The determining module 34 is further configured to determine that data transmission of the bearer on the second base station needs to be resumed according to the second measurement result.

Further, the transmission module 33 specifically includes:
Sending a resume command to the user equipment, the resume command reestablishing a radio link control entity (s-RLC) in the user equipment and instructing the user equipment to resume the s-RLC The s-RLC used is associated with a bearer and configured to perform a transmission corresponding to a second base station.

Further, the transmission module 33 specifically includes:
Sending a second restart request to the second base station, wherein the second restart request comprises the following operations:
Reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the second resuming. Transmitting to the second base station, or transmitting a second restart request to the second base station, wherein the second restart request performs the following operations:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC) and re-establish the ps-RLC, wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform the re-transmission. It is configured to do

Specifically, the first measurement result and the second measurement result are the following measurement objects:
The status of the radio link between the user equipment and the second base station, the signal strength of the second base station, the signal quality of the second base station, and the data packets to be transmitted by the user equipment via the bearer Is a result obtained by the user equipment by measuring at least one of the amount or volume of

  The first base station of this embodiment may be configured to perform the technical solution of the method embodiment shown in FIG. The implementation principles and technical effects of the first base station are similar to those of the method embodiment shown in FIG. 7, and details will not be described again.

FIG. 13 is a schematic structural diagram of a second base station according to Embodiment 11 of the present invention. As shown in FIG. 13, the second base station
A processing module 41 configured to interrupt data transmission of the bearer on the second base station,
A transmission module configured to transmit an interruption instruction to a first base station, wherein the interruption instruction indicates that the second base station has interrupted data transmission of a bearer on the second base station. And a transmission module 42 used for the transmission.

Further, the processing module 41
According to the measurement result, a determining unit 411 configured to determine that data transmission of the bearer on the second base station needs to be interrupted,
The following behavior:
A processing unit 412 configured to perform the suspending, wherein the suspending the radio link control entity (ps-RLC) in the second base station, wherein the ps-RLC is associated with a bearer, or motion:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), wherein the ps-RLC is associated with a bearer and includes a processing unit 412 configured to perform the suspending.

  Further, the suspend indication is further used to instruct the first base station to send a suspend command to the user equipment, wherein the suspend command causes the bearer data transmission on the second base station to suspend. Used to command user equipment.

Further, the second base station
A receiving module 43 configured to receive the restart request sent by the first base station
Further comprising
The processing module 41 is further configured to restart the data transmission of the bearer on the second base station according to the restart request.

Further, the processing module 41 specifically includes
According to the restart request, re-establish the radio link control entity (ps-RLC) in the second base station and restart the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the restart. It is composed of

Specifically, the measurement results are as follows:
Obtained by the second base station by measuring at least one of the uplink signal strength of the user equipment, the uplink signal quality of the user equipment, and the number of retransmissions of the radio link control entity (ps-RLC) This is the result.

  The second base station of this embodiment may be configured to perform the technical solution of the method embodiment shown in FIG. The implementation principles and technical effects of the second base station are similar to those of the method embodiment shown in FIG. 8, and details will not be described again.

FIG. 14 is a schematic structural diagram of a user equipment according to Embodiment 12 of the present invention. As shown in FIG. 14, the user equipment comprises:
It includes a memory 51 and a processor 52 connected to the memory 51, the memory 51 is configured to store a set of program codes, and the processor 52 calls up the program codes stored in the memory 51, and Processing method of the configured radio bearer: configured to interrupt data transmission of the bearer on the second base station;
The user equipment further includes a transmitter 53, the transmitter 53 being connected to the processor 52 by a bus, the transmitter being configured to send an interruption instruction to the first base station, wherein the interruption instruction is transmitted by the user equipment to the first base station. Used to indicate that data transmission of the bearer on the second base station has been interrupted.

  Further, the processor 52 is further configured to determine, according to the first measurement result, that data transmission of the bearer on the second base station needs to be interrupted, the processor 52 comprising: Suspending a radio link control entity (s-RLC) in the s-RLC associated with the bearer and further configured to perform the suspending corresponding to the second base station? Or the processor 52 performs the following operation: resetting a medium access control entity (s-MAC) in the user equipment, wherein the s-MAC is associated with a bearer and corresponds to a second base station. And suspending a radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with a bearer and corresponds to a second base station. Nisa Configured.

Further, the user equipment further includes a receiver 54, wherein the receiver 54 is configured to receive the suspend command transmitted by the first base station, wherein the suspend command is configured to transmit data of a bearer on the second base station. Used to instruct the user equipment to interrupt the transmission,
The processor 52, according to the suspend command, suspends a radio link control entity (s-RLC) in the user equipment, where the s-RLC is associated with a bearer and corresponds to a second base station. , Is further configured to perform suspending, or the processor 52, according to the suspend command, resets a medium access control entity (s-MAC) in the user equipment, the s-MAC comprising: The MAC is associated with the bearer, corresponding to the second base station, resetting, and suspending the radio link control entity (s-RLC) in the user equipment, wherein the s-RLC is associated with the bearer And configured to perform a suspending corresponding to the second base station.

  Further, the suspend indication is further used to instruct the first base station to send a suspend request to the second base station, wherein the suspend request suspends data transmission of the bearer on the second base station. Used to request the second base station to do so.

  Further, the processor 52 determines, according to the second measurement result, that data transmission of the bearer on the second base station needs to be resumed, and a radio link control entity (s-RLC) in the user equipment And re-establishing the s-RLC, wherein the s-RLC is associated with the bearer and corresponds to the second base station.

  The transmitter 53 is further configured to send a restart instruction to the first base station, wherein the restart instruction is used to instruct the first base station to send a restart request to the second base station. The resume request is used to request the second base station to resume data transmission of the bearer on the second base station.

Further, the transmitter 53 is further configured to transmit the second measurement result to the first base station,
Receiver 54 is further configured to receive a resume command transmitted by the first base station;
The processor 52 is further configured to re-establish a radio link control entity (s-RLC) in the user equipment and restart the s-RLC according to the resume command, wherein the s-RLC is associated with the bearer and the second Responding to the base station, after the first base station determines that data transmission of the bearer on the second base station needs to be restarted according to the second measurement result, the restart command Sent by the station.

The first measurement result and the second measurement result are the following measurement objects:
The status of the radio link between the user equipment and the second base station, the signal strength of the second base station, the signal quality of the second base station, and the data packets to be transmitted by the user equipment via the bearer Is a result obtained by the user equipment by measuring at least one of the amount or volume of

FIG. 15 is a schematic structural diagram of a first base station according to Embodiment 13 of the present invention. As shown in FIG. 15, the first base station includes:
A receiver 61 configured to receive the suspend instruction sent by the user equipment,
Includes a memory 62 and a processor 63 connected to the memory 62, wherein the processor 63 is connected to the receiver 61 by a bus, the memory 62 is configured to store a set of program codes, and the processor 63 is stored in the memory 62. And executing the method of processing the radio bearer shown in FIG. 7: determining that the user equipment interrupts the data transmission of the bearer on the second base station according to the interruption instruction. Is done.

  The first base station further includes a transmitter 64 configured to send a suspend request to the second base station, the suspend request to interrupt data transmission of a bearer on the second base station. Used to request the second base station.

  Further, the transmitter 64 is further configured to send an interruption request to the second base station, the interruption request interrupting the following operation: a radio link control entity (ps-RLC) in the second base station. Wherein the ps-RLC is associated with a bearer and is used to request a second base station to perform a suspend, or the suspend request comprises the following actions: Resetting a medium access control entity (ps-MAC) in a base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-RLC) in a second base station. Disruption, where the ps-RLC is associated with the bearer and is used to request the second base station to perform the disruption.

Further, the receiver 61 is further configured to receive the restart instruction transmitted by the user equipment,
The transmitter 64 is further configured to send a first restart request to the second base station according to the restart instruction, wherein the first restart request restarts data transmission of the bearer on the second base station. Used to request the second base station.

  Further, the transmitter 64 is further configured to transmit a first restart request to the second base station according to the restart instruction, wherein the first restart request includes the following operation: a radio link in the second base station. To re-establish the control entity (ps-RLC) and restart the ps-RLC, wherein the ps-RLC is associated with a bearer and request the second base station to perform the restart The used or first restart request is the following operation: resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer; Performing resetting and re-establishing a radio link control entity (ps-RLC) in the second base station and restarting the ps-RLC, wherein the ps-RLC is associated with a bearer Used to request the second base station to do so.

Further, the processor 63 is further configured to determine that data transmission of the bearer on the second base station needs to be resumed,
The transmitter 64 is further configured to send a resume command to the user equipment and to send a second resume request to the second base station, wherein the resume command comprises a data transmission of a bearer on the second base station. Used to instruct the user equipment to resume, the second resume request is used to request the second base station to resume data transmission of the bearer on the second base station .

Further, the receiver 61 is further configured to receive the second measurement transmitted by the user equipment;
Correspondingly, the processor 63 is further configured to determine, according to the second measurement result, that data transmission of the bearer on the second base station needs to be resumed.

  Further, the transmitter 64 is further configured to send a resume command to the user equipment, the resume command reestablishing a radio link control entity (s-RLC) in the user equipment and restarting the s-RLC. The s-RLC is associated with a bearer and corresponds to a second base station.

  Further, the transmitter 64 is further configured to send a second restart request to the second base station, the second restart request comprising the following operation: a radio link control entity (ps) in the second base station. Re-establishing ps-RLC, which is associated with the bearer, used to request the second base station to perform re-starting Or the second restart request is the following operation: resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, And reestablishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with a bearer and performing the resuming. Used to request two base stations.

FIG. 16 is a schematic structural diagram of a second base station according to Embodiment 14 of the present invention. As shown in FIG. 16, the second base station
It includes a memory 71 and a processor 72 connected to the memory 71, the memory 71 is configured to store a set of program codes, and the processor 72 calls up the program codes stored in the memory 71, and Processing method of the configured radio bearer: configured to interrupt data transmission of the bearer on the second base station;
The second base station further includes a transmitter 73, wherein the transmitter 73 is connected to the processor 72 by a bus, wherein the transmitter 73 is configured to transmit a break instruction to the first base station, the break instruction comprising: Used to indicate that the second base station has interrupted data transmission of the bearer on the second base station.

  Further, the processor 72 is further configured to determine, according to the measurement result, that data transmission of the bearer on the second base station needs to be interrupted, wherein the processor 72 performs the following operations: in the second base station. Suspending the radio link control entity (ps-RLC), wherein the ps-RLC is associated with a bearer, and is further configured to implement the suspending, or the processor 72 performs the following operations: Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with a bearer, resetting, and a radio link control entity (ps-MAC) in the second base station. RLC), wherein the ps-RLC is associated with a bearer and is further configured to perform the suspending.

  Further, the suspend indication is further used to instruct the first base station to send a suspend command to the user equipment, wherein the suspend command causes the bearer data transmission on the second base station to suspend. Used to command user equipment.

Further, the second base station further includes a receiving module 74 configured to receive the restart request sent by the first base station,
Processor 72 is further configured to resume data transmission of the bearer on the second base station according to the resume request.

  Further, the processor 72 is further configured to re-establish a radio link control entity (ps-RLC) in the second base station and restart the ps-RLC according to the restart request, wherein the ps-RLC is associated with a bearer. .

The measurement results are as follows:
Obtained by the second base station by measuring at least one of the uplink signal strength of the user equipment, the uplink signal quality of the user equipment, and the number of retransmissions of the radio link control entity (ps-RLC) This is the result.

  One skilled in the art can appreciate that all or some of the steps of the method embodiments can be performed by a program that instructs the associated hardware. The program may be stored on a computer-readable storage medium. As the program runs, the steps of the method embodiment are performed. The storage medium includes any medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

  Finally, it should be noted that the above embodiments are only for describing the technical solution of the present invention, not for limiting the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will recognize that the technical solutions described in the above embodiments may be used without departing from the scope of the technical solutions of the embodiments of the present invention. It should be understood that further modifications can be made to the solutions or equivalent replacements for some or all of the technical features thereof.

11 Processing module
111 Judgment unit
112 processing unit
113 transmission unit
12 Transmission module
21 Receiving module
31 Receiver module
32 processing modules
33 Transmission module
34 Judgment Module
41 processing module
411 Judgment Unit
412 processing unit
42 Transmission module
43 Receiving module
51 memory
52 processor
53 transmitter
54 receiver
61 receiver
62 memory
63 processor
64 transmitter
71 memory
72 processors
73 transmitter
74 receiver

Claims (7)

A method for processing a radio bearer,
Receiving, by the first base station, an interruption instruction sent by the user equipment;
Determining, by the first base station, that the user equipment suspends data transmission of a bearer on a second base station, according to the interruption instruction,
By the first base station, after the step of receiving the suspend instruction sent by the user equipment,
By the first base station, determining that the data transmission of the bearer on the second base station needs to be restarted,
By the first base station, transmitting a restart command to the user equipment, transmitting a second restart request to the second base station, the restart command, the restart command on the second base station Used to instruct the user equipment to resume the data transmission of the bearer, wherein the second resume request resumes the data transmission of the bearer on the second base station. Used to make a request to the second base station. Transmitting, by the first base station, a resume command to the user equipment, wherein the resume command resumes the data transmission of the bearer on the second base station. Wherein said steps are used to instruct
Transmitting, by the first base station, the resume command to the user equipment, the resume command re-establishing a radio link control entity (s-RLC) in the user equipment; The method of claim 1, wherein the s-RLC is used to instruct the user equipment to resume RLC, wherein the s-RLC is associated with the bearer and corresponds to the second base station. . The step of transmitting a second restart request to the second base station by the first base station, wherein the second restart request is the data of the bearer on the second base station. Used to request the second base station to resume transmission, the step of:
By the first base station, transmitting the second restart request to the second base station,
The second resuming request has the following operation:
Re-establishing a radio link control entity (ps-RLC) in the second base station and resuming the ps-RLC, wherein the ps-RLC is associated with the bearer, resuming The second resumption request is used to request the second base station, or the following operation:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with the bearer, resetting, and radio link control in the second base station Requesting the second base station to re-establish an entity (ps-RLC) and restart the ps-RLC, wherein the ps-RLC is associated with the bearer The method of claim 1, comprising the steps of: A first base station,
A receiving module configured to receive the suspend instruction sent by the user equipment;
According to the suspend instruction, a processing module configured to determine that the user equipment suspends data transmission of the bearer on the second base station,
A determining module configured to determine that the data transmission of the bearer on the second base station needs to be resumed,
A transmission module configured to transmit a resume command to the user equipment and to transmit a second resume request to the second base station, wherein the resume command is executed on the second base station. The second resume request is used to instruct the user equipment to resume the data transmission of the bearer, the second resume request being used to resume the data transmission of the bearer on the second base station. And a transmission module used to request the second base station. The transmission module, specifically,
Sending the resume command to the user equipment, the resume command reestablishing a radio link control entity (s-RLC) in the user equipment and the user resuming the s-RLC. The first s-RLC according to claim 4, wherein the s-RLC is used to instruct a device, the s-RLC being associated with the bearer and corresponding to the second base station, configured to transmit. Base station. The transmission module, specifically,
Transmitting the second restart request to the second base station, wherein the second restart request includes the following operation:
Resetting a medium access control entity (ps-MAC) in the second base station, wherein the ps-MAC is associated with the bearer, resetting, and radio link control in the second base station Requesting the second base station to re-establish an entity (ps-RLC) and restart the ps-RLC, wherein the ps-RLC is associated with the bearer 5. The first base station according to claim 4, wherein the first base station is configured to perform transmitting.   4. A program for causing a processor of a base station to execute the method according to claim 1.

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