WO2017049558A1 - 上行数据传输的方法和装置 - Google Patents

上行数据传输的方法和装置 Download PDF

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Publication number
WO2017049558A1
WO2017049558A1 PCT/CN2015/090627 CN2015090627W WO2017049558A1 WO 2017049558 A1 WO2017049558 A1 WO 2017049558A1 CN 2015090627 W CN2015090627 W CN 2015090627W WO 2017049558 A1 WO2017049558 A1 WO 2017049558A1
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Prior art keywords
split bearer
base station
mac entity
data
user equipment
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PCT/CN2015/090627
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English (en)
French (fr)
Inventor
常俊仁
毕皓
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/090627 priority Critical patent/WO2017049558A1/zh
Priority to CN201580072307.5A priority patent/CN107113821B/zh
Publication of WO2017049558A1 publication Critical patent/WO2017049558A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for uplink data transmission.
  • 3GPP 3rd Generation Partner Project
  • DC Dual Connectivity
  • the main idea of DC technology is to aggregate the carriers of different base stations connected by non-ideal backhaul links to improve the data transmission rate.
  • one UE will be connected to two evolved Node Bs ("eNBs"), one is the primary base station (Master eNB, referred to as “MeNB”), and the other is the secondary base station (Secondary eNB, Referred to as "SeNB”), the non-ideal backhaul connection between the MeNB and the SeNB.
  • eNBs evolved Node Bs
  • MeNB primary base station
  • Secondary eNB secondary base station
  • the protocol stack of the MeNB and the SeNB in the dual connectivity mode determined by the 3GPP is as shown in FIG. 1.
  • the DRB 1 For the Dada Radio Bearer (DRB) 1, the DRB 1 only passes through the MeNB to the user equipment. The UE sends.
  • DRB 2 one part is sent to the UE through the MeNB, and the other part is first sent to the SeNB through the X2 interface, and then sent by the SeNB to the UE.
  • the MeNB first sends a part of the data packet of the DRB2 to the SeNB in the form of a packet of a Packet Data Convergence Protocol ("PDCP") protocol data unit ("PDU"). Then, it is sent to the UE through the SeNB.
  • PDCP Packet Data Convergence Protocol
  • PDU Packet Data Convergence Protocol
  • the UE may send part of the PDCP data packet to the MeNB, and simultaneously transmit part of the PDCP data packet to the SeNB. Since the data of the above DRB 2 is split into two parts and transmitted through different eNBs, this DRB 2 is called a split bearer.
  • the MAC entity submits indication information to the PDCP layer to facilitate data transmission by the PDCP layer.
  • the PDCP entity determines how the PDCP data is transmitted based on the amount of data and the threshold of the PDCP.
  • the priority of the logical channel of the split bearer is higher than the priority of the logical channel of the other bearer.
  • the UE receives the UL grant information, it indicates the data transmission to the PDCP layer, and the split bearer is preferentially transmitted.
  • the UL grant is actually It may be that the MeNB schedules a UL grant based on other bearers reported by the UE. Therefore, in this case, the UL grant of other bearers for data transmission is preempted by the split bearer, and the quality of service of other bearers is not guaranteed.
  • the split bearer may have previously reported the buffer status report to the SeNB.
  • the UE obtains the UL grant information from the SeNB, the PDCP data of the split bearer has been transmitted from the MeNB, so that the UL grant allocated by the SeNB is insufficient due to the split bearer data packet. More resources lead to waste.
  • the invention provides a method and device for uplink data transmission, which can improve system performance.
  • the first aspect provides a method for uplink data transmission, where the method includes: the user equipment acquires resource allocation information sent by the first base station; and when the user equipment determines that the data volume of the split bearer is less than or equal to a preset value, and the user equipment When the first buffer information report BSR including the data buffer state information of the split bearer is sent to the first base station, or when the user equipment determines that the data volume of the split bearer is greater than the preset value, the first of the user equipment
  • the MAC entity allocates transmission resources to the split bearer according to the resource allocation information, and/or the first MAC entity of the user equipment sends data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, and the data transmission indication information Instructing the PDCP layer to send the split bearer data to the first MAC entity, or the data transmission indication information indicating the transmission resource allocated to the split bearer, or the data transmission indication information indicating that the first MAC entity allocates the split bearer Transmission opportunity.
  • the method is used for a user equipment in a dual connectivity system, where the user equipment includes a first MAC entity and a second MAC entity, the first MAC entity and the second The MAC entities are respectively configured to communicate with the first base station and the second base station in the dual connectivity system.
  • the first MAC entity when the user equipment determines that the data volume of the split bearer is greater than the preset value, allocates information according to the resource And allocating the transmission resource to the split bearer, and/or the first MAC entity of the user equipment sends the data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, including: when the user equipment determines the data of the split bearer The amount is greater than the preset value and the user sets
  • the second BSR has been sent to the first base station, the first MAC entity allocates transmission resources to the split bearer according to the resource allocation information, and/or the first MAC entity sends the data transmission indication to the PDCP layer.
  • the second BSR includes data buffer state information of the split bearer.
  • the first MAC entity when the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity is configured to transmit the split When the MAC entity of the data is carried, the first MAC entity allocates a transmission resource to the split bearer according to the resource allocation information, and/or the first MAC entity sends the data transmission indication information to the PDCP layer.
  • the first MAC entity when the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the user equipment does not go to the first base station
  • the first BSR that includes the data buffering state information of the splitting bearer is sent
  • the first MAC entity when the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the user equipment does not go to the first base station
  • the first MAC entity does not allocate transmission resources for the split bearer, and/or does not send the data transmission indication information of the split bearer to the PDCP layer.
  • the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the user equipment does not go to the first base station
  • the first BSR that includes the data buffer status information of the split bearer is sent
  • the first MAC entity does not allocate a transmission resource for the split bearer, and/or the first MAC entity of the user equipment does not send the first MAC entity to the PDCP layer.
  • Data transmission indication information when the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the user equipment does not go to the first base station
  • the first BSR that includes the data buffer status information of the split bearer is sent, the first MAC entity does not allocate a transmission resource for the split bearer, and/or the first MAC entity of the user equipment does not send the first MAC entity to the PDCP layer.
  • the first MAC entity does not allocate a transmission resource for the split bearer, and/or does not use a packet data convergence protocol to the user equipment.
  • the PDCP layer sends the data transmission indication information of the split bearer, where the first MAC entity allocates resources for the second bearer according to the resource allocation information, and/or sends the data transmission indication information of the second bearer to the PDCP layer.
  • the second bearer is a bearer other than the split bearer, and the data transmission indication information indicates that the PDCP layer sends the data of the second bearer to the first MAC entity, or the data transmission indication information indicates that the second bearer is allocated to the second bearer.
  • the transmission resource of the bearer, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity to the second bearer.
  • the first MAC entity sends data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, including: the first MAC The entity controls the RLC layer to send the data transmission indication information to the PDCP layer through a radio link.
  • the first MAC entity allocates transmission resources to the split bearer, including: when the split bearer is hanged to the first base station In the up state, the first MAC entity determines to recover the transmission of the split bearer and allocates a transmission resource for the split bearer.
  • the first MAC entity allocates a transmission resource to the split bearer, including: the first MAC entity restarts the logical channel of the split bearer. The accumulation of the state variable Bj and the allocation of transmission resources for the split bearer.
  • the first base station is a primary base station
  • the second base station is a secondary base station
  • the first base station is a secondary base station
  • the second The base station is the primary base station
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the acquiring, by the user equipment, the resource allocation information that is sent by the first base station includes: acquiring, by the user equipment, a physical downlink control channel PDCCH channel, The resource allocation information.
  • the first MAC entity allocates a transmission resource to the split bearer according to the resource allocation information, and/or the user equipment Transmitting, by the MAC entity, the data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, the first MAC entity allocates a transmission resource to the split bearer in a logical channel priority LCP process; the first MAC entity is configured according to the first MAC entity And transmitting the data transmission indication information to the PDCP layer for the transmission resource allocated by the split bearer.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer
  • the first MAC The transmission opportunity allocated by the entity for the split bearer is represented as the amount of data that can be transmitted allocated by the split bearer.
  • the second aspect provides a method for uplink data transmission, where the method includes: the user equipment acquires resource allocation information sent by the first base station; and when the user equipment determines that the data volume of the split bearer is smaller than Or the first MAC entity of the user equipment is not configured, and when the data volume of the split bearer is less than or equal to a preset value, the MAC entity of the split bearer data is transmitted, or the user equipment determines the first
  • the MAC entity does not send the buffer status report BSR including the data buffer status information of the split bearer to the first base station
  • the first MAC entity does not allocate transmission resources for the split bearer, and/or does not allocate packets to the user equipment.
  • the data aggregation protocol PDCP layer sends the data transmission indication information of the split bearer.
  • the method is used for a user equipment in a dual connectivity system, where the user equipment includes a first MAC entity and a second MAC entity, the first MAC entity and the second The MAC entities are respectively configured to communicate with the first base station and the second base station in the dual connectivity system.
  • the user equipment when the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity of the user equipment does not When the first BSR that includes the data buffer state information of the split bearer is sent to the first base station, the user equipment does not allocate a transmission resource for the split bearer, and/or does not send the data transmission indication information to the PDCP layer.
  • the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the user equipment has sent the first base station to the first base station.
  • the first MAC entity of the user equipment is configured according to the resource allocation information.
  • the split bearer allocates a transmission resource, and/or the first MAC entity sends data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, where the data transmission indication information indicates that the PDCP layer sends the split to the first MAC entity.
  • the bearer data, or the data transmission indication information indicates a transmission resource allocated to the split bearer, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity for the split bearer.
  • the first MAC entity when the user equipment determines that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity is configured to transmit the split When the MAC entity of the data is carried, the first MAC entity allocates a transmission resource to the split bearer according to the resource allocation information, and/or the first MAC entity sends the data transmission indication information to the PDCP layer.
  • the first MAC entity does not allocate a transmission resource for the split bearer, and/or does not assign a score to the user equipment.
  • the data transmission protocol PDCP layer sends the data transmission indication information of the split bearer, and the first MAC entity allocates resources for the second bearer according to the resource allocation information, and/or sends the data of the second bearer to the PDCP layer.
  • the second bearer is a bearer other than the split bearer, where the data transmission indication information indicates that the PDCP layer sends the data of the second bearer to the first MAC entity, or the data transmission indication information indicates the allocation The transmission resource of the second bearer, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity to the second bearer.
  • the second bearer is a non-split bearer
  • the first MAC entity allocates resources for the second bearer according to the resource allocation information
  • the data transmission indication information of the second bearer is sent to the PDCP layer.
  • the second bearer is another split bearer
  • the user equipment determines that the data volume of the second bearer is less than or equal to a preset value and
  • the first The MAC entity allocates resources for the second bearer according to the resource allocation information, and/or sends the data transmission indication information of the second bearer to the PDCP layer.
  • the first MAC entity does not allocate transmission resources for the split bearer, including: when the state variable Bj of the logical channel of the split bearer When the value is greater than zero, the first MAC entity does not allocate transmission resources for the split bearer.
  • the first MAC entity does not allocate the transmission resource to the split bearer
  • the method includes: determining, by the first MAC entity, the split bearer to the first The transmission of a base station is in a suspended state.
  • the method further includes: when the data volume of the split bearer is less than or equal to a preset value, and the user equipment has been to the first base station
  • the BSR that includes the data buffering status information of the splitting bearer is sent, or when the amount of data of the splitting bearer is greater than the preset value
  • the first MAC entity determines to restore the transmission of the split bearer to the first base station, and The split bearer allocates transmission resources.
  • the user equipment does not allocate a transmission resource to the split bearer, and includes: a state of the logical channel that the first MAC entity divides the bearer The variable Bj is set to zero, and/or the accumulation of the state variable Bj is stopped.
  • the method further includes: when the data volume of the split bearer is less than or equal to a preset value, and the user equipment has been to the first base station When the BSR that includes the data buffer state information of the split bearer is sent, or when the data volume of the split bearer is greater than the preset value, the first MAC entity restarts the accumulation of the state variable Bj and allocates the split bearer. Transfer resources.
  • the first base station is a primary base station
  • the second base station is a secondary base station
  • the first base station is a secondary base station
  • the second The base station is the primary base station
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer
  • the first MAC The transmission opportunity allocated by the entity for the split bearer is represented as the amount of data that can be transmitted allocated by the split bearer.
  • a third aspect provides a user equipment for uplink data transmission, where the user equipment includes: an obtaining module, a processing module, and a sending module, where the acquiring module is configured to: acquire resource allocation information sent by the first base station; When the user equipment determines that the amount of data of the split bearer is less than or equal to a preset value and the sending module has sent a first buffer status report BSR including data buffer status information of the split bearer to the first base station, or when the user When the device determines that the data volume of the split bearer is greater than the preset value, the first MAC entity allocates a transmission resource to the split bearer according to the resource allocation information by the processing module, and/or the first MAC entity passes the sending module.
  • the user equipment is located in a dual connection
  • the user equipment includes a first MAC entity and a second MAC entity, where the first MAC entity and the second MAC entity are respectively used to communicate with the first base station and the second base station in the dual connectivity system.
  • the processing module is specifically configured to: when determining that the data volume of the split bearer is greater than the preset value, and the user equipment has been to the first
  • the base station sends the second BSR
  • the first MAC entity allocates transmission resources to the split bearer according to the resource allocation information by the processing module, and/or sends the data transmission indication information to the PDCP layer by using the sending module
  • the second BSR includes data buffer status information of the split bearer.
  • the processing module is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity The first MAC entity allocates transmission resources to the split bearer according to the resource allocation information by the processing module, and/or sends the data to the PDCP layer by using the sending module, when the MAC entity of the split-bearing data is transmitted by the processing module. Transfer indication information.
  • the processing module is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the sending module does not When the first BSR sends the first BSR including the data buffering state information of the split bearer, the first base station does not allocate transmission resources for the split bearer, and/or does not send the data transmission indication information of the split bearer to the PDCP layer.
  • the processing module is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the sending module does not When the first base station sends the first BSR including the data buffer status information of the split bearer, the transmission resource is not allocated to the split bearer, and/or the first MAC entity of the user equipment does not send the data to the PDCP layer. Transfer indication information.
  • the sending module is specifically configured to: send, by using a radio link, the RLC layer to send the data transmission indication information to the PDCP layer.
  • the processing module is specifically configured to: when the transmission of the split bearer to the first base station is in a suspended state, determine to restore the splitting The bearer transmission and allocate transmission resources for the split bearer.
  • the processing module is specifically configured to: restart the accumulation of the state variable Bj of the logical channel of the split bearer, and allocate a transmission resource for the split bearer.
  • the first base station is a primary base station
  • the second base station is a secondary base station
  • the first base station is a secondary base station
  • the second The base station is the primary base station
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the acquiring module is specifically configured to: obtain the resource allocation information by using a physical downlink control channel PDCCH channel.
  • the processing module is specifically configured to: when the logical channel priority LCP process, the first MAC entity passes the processing module for the splitting The bearer allocates a transmission resource; the first MAC entity sends the data transmission indication information to the PDCP layer according to the transmission resource allocated for the split bearer by the sending module.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer
  • the transmission opportunity allocated by the entity for the split bearer is represented as the amount of data that can be transmitted allocated by the split bearer.
  • the fourth aspect provides a user equipment for uplink data transmission, where the user equipment includes: an acquiring module, configured to acquire resource allocation information sent by the first base station; and a processing module, configured to: when determining that the amount of data of the split bearer is less than or When the first MAC entity of the user equipment is not configured, and the data entity of the data of the split bearer is transmitted when the data volume of the split bearer is less than or equal to a preset value, or the first MAC entity does not When the first base station sends the buffer status report BSR including the data buffer status information of the split bearer, the transmission resource is not allocated for the split bearer, and/or the split bearer is not sent to the PDCP layer of the packet data convergence protocol of the user equipment. Data transmission indication information.
  • the user equipment is located in a dual connectivity system, where the user equipment includes a first MAC entity and a second MAC entity, the first MAC The entity and the second MAC entity are respectively configured to communicate with the first base station and the second base station in the dual connectivity system.
  • the processing module is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and not to the first When the base station sends the first BSR including the data buffer state information of the split bearer, the transmission resource is not allocated for the split bearer, and/or the data transmission indication information is not sent to the PDCP layer.
  • the user equipment may further include: a sending module, where the processing module is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the The first MAC entity passes the processing module when the BSR that has received the data cache state information of the split bearer is sent to the first base station, or when the data volume of the split bearer is determined to be greater than the preset value.
  • the first MAC entity sends, by using a sending module, data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, where the data transmission indication information indicates the
  • the PDCP layer sends the data of the split bearer to the first MAC entity, or the data transmission indication information indicates a transmission resource allocated to the split bearer, or the data transmission indication information indicates that the first MAC entity allocates the transmission allocated for the split bearer. opportunity.
  • the processing module is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity
  • the first MAC entity allocates a transmission resource to the split bearer according to the resource allocation information by the processing module, and/or the first MAC entity sends the PDCP to the PDCP through the sending module.
  • the layer sends the data transmission indication information.
  • the processing module is specifically configured to: when the value of the state variable Bj of the logical channel of the split bearer is greater than zero, not for the splitting The bearer allocates transmission resources.
  • the processing module is specifically configured to: determine that the transmission of the split bearer to the first base station is in a suspended state.
  • the processing module is further configured to: when the data volume of the split bearer is less than or equal to a preset value, and the first MAC entity has been When the first base station sends the first buffer status report BSR including the data buffer status information of the split bearer, or when the data amount of the split bearer is greater than the preset value, the first MAC The entity determines, by the processing module, to recover the transmission of the split bearer to the first base station, and allocates a transmission resource for the split bearer.
  • the first MAC entity sets the state variable Bj of the logical channel of the split bearer to zero through the processing module, and/or stops The accumulation of this state variable Bj.
  • the processing module is further configured to: when the data volume of the split bearer is less than or equal to a preset value, and the first MAC entity has been When the first base station sends the first buffer status report BSR including the data buffer status information of the split bearer, or when the data amount of the split bearer is greater than the preset value, the first MAC entity restarts the process by using the processing module.
  • the first base station is a primary base station
  • the second base station is a secondary base station
  • the first base station is a secondary base station
  • the second base station is The main base station.
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer
  • the transmission opportunity allocated by the entity for the split bearer is represented as the amount of data that can be transmitted allocated by the split bearer.
  • a user equipment for uplink data transmission comprising a memory, a processor, and a transceiver, the memory being used to store an instruction or a program or program code, the processor is configured to execute the instruction stored in the memory or A program or program code for controlling a transceiver to transmit a signal to control a user equipment to perform the method of uplink data transmission of any of the first aspect, the second aspect, and various implementations thereof.
  • the following list is explained:
  • the transceiver is configured to: obtain resource allocation information sent by the first base station; and the processor is configured to: when determining that the amount of data of the split bearer is less than or equal to a preset value, and the transceiver has been to the first
  • the base station sends a first cache that includes data cache state information of the split bearer
  • the transmission resource is allocated for the split bearer according to the resource allocation information, and/or the packet data is sent to the user equipment by the transceiver.
  • the convergence protocol PDCP layer sends data transmission indication information, where the data transmission indication information indicates that the PDCP layer sends the split bearer data to the first MAC entity of the user equipment, or the data transmission indication information indicates that the first MAC entity is
  • the split carries the allocated transmission resource, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity to the split bearer.
  • the processor is specifically configured to: when determining that the data volume of the split bearer is greater than the preset value, and the sending and receiving has sent the second BSR to the first base station And allocating the transmission resource to the split bearer according to the resource allocation information, and/or sending the data transmission indication information to the PDCP layer by using the transceiver, where the second BSR includes data buffer state information of the split bearer.
  • the processor is specifically configured to: when the transmission of the split bearer to the first base station is in a suspended state, determine to restore the splitting The bearer transmission and allocate transmission resources for the split bearer.
  • the processor is specifically configured to: restart the accumulation of the state variable Bj of the logical channel of the split bearer, and allocate the split bearer Transfer resources.
  • the first base station is a primary base station
  • the second base station is a secondary base station
  • the first base station is a secondary base station
  • the second The base station is the primary base station
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the processor is specifically configured to allocate a transmission resource for the split bearer in a logical channel priority LCP process, according to the splitting The allocated transmission resource is carried, and the data transmission indication information is sent to the PDCP layer by the transceiver.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical allocated by the split bearer.
  • the amount of resources, the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the amount of data that can be transmitted allocated by the split bearer.
  • a user equipment for uplink data transmission comprising a memory, a processor, and a transceiver, the memory being used to store an instruction or a program or program code, the processor is configured to execute the instruction stored in the memory or A program or program code for controlling a transceiver to transmit a signal to control a user equipment to perform the method of uplink data transmission of any of the first aspect, the second aspect, and various implementations thereof.
  • the following list is explained:
  • the transceiver is configured to: obtain resource allocation information sent by the first base station; and the processor is configured to: when determining that the amount of data of the split bearer is less than or equal to a preset value, and the first MAC entity of the user equipment When the MAC entity that transmits the split bearer data when the amount of data of the split bearer is less than or equal to the preset value is not configured, or when it is determined that the transceiver does not send the data cache state information including the split bearer to the first base station When the buffer status reports the BSR, it is determined that the transmission resource is not allocated for the split bearer, and/or the data transmission indication information of the split bearer is not sent to the PDCP layer of the packet data convergence protocol of the user equipment.
  • the processor is specifically configured to: when the value of the state variable Bj of the logical channel of the split bearer is greater than zero, determine that the transmission resource is not allocated for the split bearer.
  • the processor is specifically configured to: determine that the transmission of the split bearer to the first base station is in a suspended state.
  • the processor is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the transceiver has been When the first base station sends the BSR that includes the data buffering status information of the splitting bearer, or when it is determined that the data volume of the splitting bearer is greater than the preset value, determining to restore the transmission of the split bearer to the first base station, and The split bearer allocates transmission resources.
  • the processor is specifically configured to: set a state variable Bj of the logical channel of the split bearer to zero, and/or stop the state The accumulation of the variable Bj.
  • the processor is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the transceiver has been When the first base station sends the BSR including the data buffer status information of the split bearer, Or when it is determined that the amount of data of the split bearer is greater than the preset value, the accumulation of the state variable Bj is restarted, and a transmission resource is allocated for the split bearer.
  • the first base station is a primary base station
  • the second base station is a secondary base station
  • the first base station is a secondary base station
  • the second The base station is the primary base station
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • a processing apparatus is provided, the processing apparatus being applied to a user equipment.
  • the processing device can be one or more processors or chips in a user equipment. In other possible cases, the processing device may also be the user equipment itself.
  • the processing device is configured to control a user equipment, or the user equipment is configured to perform the method of uplink data transmission of any of the first aspect, the second aspect, and various implementations thereof.
  • a computer program product comprising: computer program code, when the computer program code is executed by a computing unit, a processing unit or a processor of a user device, causing the user device to execute The method of uplink data transmission of any of the above first aspect, second aspect, and various implementations thereof.
  • a ninth aspect a computer readable storage medium storing a program, the program causing a user equipment to perform any of the first aspect, the second aspect, and various implementations thereof A method of uplink data transmission.
  • a program for causing a user equipment to perform the method of uplink data transmission of any of the first aspect, the second aspect, and various implementations thereof.
  • the method and device for uplink data transmission in the embodiment of the present invention after receiving the resource allocation information sent by the base station, the MAC entity determines that the data volume of the split bearer is greater than a preset value, or the data volume of the split bearer is less than the pre- Set value and have sent to the base station including split bearer
  • the resource is allocated for the split bearer, and the data transmission indication information is sent to the PDCP layer, so that the PDCP layer can transmit the data of the split bearer, thereby avoiding the waste of resources caused by the split bearer preempting resources and affecting other services.
  • the transmission quality ensures the fairness of different services, thereby improving resource utilization efficiency.
  • FIG. 1 is a schematic flow chart of a dual connectivity system in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for uplink data transmission according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for dual uplink data transmission according to an embodiment of the present invention.
  • FIG. 4 is another schematic flowchart of a method for uplink data transmission according to an embodiment of the present invention.
  • FIG. 5 is still another schematic flowchart of a method for uplink data transmission according to an embodiment of the present invention.
  • FIG. 6 is still another schematic flowchart of a method for uplink data transmission according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of a user equipment for uplink data transmission according to an embodiment of the present invention.
  • FIG. 8 is another schematic block diagram of a user equipment for uplink data transmission according to an embodiment of the present invention.
  • FIG. 9 is still another schematic block diagram of a user equipment for uplink data transmission according to an embodiment of the present invention.
  • FIG. 10 is still another schematic block diagram of a user equipment for uplink data transmission according to an embodiment of the present invention.
  • one UE is configured with two cell groups (Cell group, referred to as "CG"), or also called a group of carriers (CC group): one is a primary cell group (Master Cell) Group, referred to as “MCG” for short, and the other is Secondary Cell Group (“SCG”)).
  • Cell group referred to as "CG”
  • CC group a group of carriers
  • MCG Primary Cell Group
  • SCG Secondary Cell Group
  • the MCG is a cell group associated with the MeNB, and is composed of a primary cell (PCell) and zero or more secondary cells (SCells).
  • PCell primary cell
  • SCells secondary cells
  • the SCG is a cell group associated with the SeNB, and is composed of a primary secondary cell (PSCell) and zero or more secondary cells (SCells).
  • PSCell primary secondary cell
  • SCells secondary cells
  • the PCell is a cell that establishes a Radio Resource Control (RRC) connection, and the primary cell provides security related parameters and is configured with a Physical Uplink Control Channel (PUCCH).
  • RRC Radio Resource Control
  • PUCCH Physical Uplink Control Channel
  • the PSCell refers to a secondary cell in which a PUCCH resource is configured in a secondary cell group. Except for PCell and PSCell, the SCells in the MCG and SCG are not configured with PUCCH resources.
  • the PUCCH channel is mainly used for transmitting information such as hybrid automatic repeat request acknowledgement information (HARQ-ACK), channel state information (CSI), and scheduling request (SR).
  • HARQ-ACK hybrid automatic repeat request acknowledgement information
  • CSI channel state information
  • SR scheduling request
  • each DRB corresponds to one logical channel and configures a logical channel priority.
  • LCP Logical Channel Prioritization
  • the RRC layer controls the MAC scheduling by controlling the following parameters: logical channel priority, priority bit rate (PBR), and duration. Bulk Size Duration (BSD).
  • PBR priority bit rate
  • BSD Bulk Size Duration
  • the UE shall maintain a state variable Bj.
  • Bj should be initialized to 0, and then each transmission time interval (TTI) is increased by PBR, that is, based on PBR*TTI, that is, each TTI is added with one PBR.
  • PBR is the PBR corresponding to logical channel j.
  • the value of Bj can never exceed the size of the token bucket, and the size of one token bucket is PBR*BSD.
  • the value of Bj is greater than the token bucket of logical channel j, then the value of Bj should be set to PBR*BSD.
  • PBR can be set to infinity, When a logical channel is set to an infinite PBR, the service can be guaranteed in the case of resource shortage, and other services are not served.
  • the token bucket algorithm achieves the resource allocation multiplexing effect by limiting the token bucket capacity and the token addition speed, and has a wide application for controlling the data transmission rate and controlling the burst.
  • the UE When a new transmission is performed, the UE performs the following logical channel priority processing, that is, the UE should allocate resources for the logical channel according to the following steps:
  • the size of the allocated resource is determined based on the size of the number of tokens in the token bucket;
  • FIG. 2 is a schematic diagram of MAC multiplexing.
  • the transmission of DRB 1 reaches its Bj, it is necessary to continue multiplexing the data of the next DRB 2.
  • the data of the multiplexed DRB 3 is continued.
  • the Second round of multiplexing the multiplexing is performed from high to low in the order of priority of the DRB, and is no longer limited by Bj.
  • the effective resources are used.
  • the split bearer may perform uplink data transmission only by one eNB, and sometimes, when the data volume of the DRB is relatively large, uplink data may be transmitted through two eNBs at the same time.
  • the split bearer transmits data only through one eNB the LCP process described in FIG. 2 above can be completely reused, and the guaranteed transmission rate PBR of the DRB is also guaranteed by one eNB.
  • the split bearer When the split bearer performs uplink transmission through two eNBs (assuming that the split bearer is DRB2), the split bearer needs to configure independent logical channels in the two eNBs respectively, one logical channel for the MeNB and one logical channel for the SeNB.
  • the priority guaranteed rate PBR of the split bearer is guaranteed by the joint of two eNBs. Therefore, for the two logical channels of the split bearer, the network configures a part of the PBR for the bearer, for example, one is that the PBR1 is the MeNB side.
  • the UE needs to send a buffer status report (BSR) to the MeNB and the SeNB, so that the eNB reports the cache status information in the BSR according to the UE.
  • BSR buffer status report
  • the RRC can control the reporting of the BSR by configuring two timers, namely the periodic BSR-Timer and the retx BSR-Timer.
  • the eNB may assign it to a logical channel group, ie, a logical channel (LCG).
  • LCG logical channel
  • the purpose of introducing the LCG is mainly to reduce the signaling overhead. Because, if a BSR is reported for each logical channel, a large amount of signaling overhead is incurred.
  • the current principle is that if the PDCP data volume of the split bearer is higher than a certain threshold, the UE triggers the BSR to be reported to the two eNBs, namely, the MeNB and the SeNB. Otherwise, if the amount of PDCP data is less than the threshold, the UE reports the BSR only to one eNB.
  • MCG bearer 1 there are two MCG bearers, namely MCG bearer 1 and MCG bearer 2, and one split bearer, wherein the logical channel priority of the MCG bearer 1 is assumed to be the highest, and the logical channel priority of the split bearer is assumed. Higher than the logical channel priority of MCG Bearer 2.
  • MCG bearer 1 uplink resource (UL grant) information
  • UL grant uplink resource
  • the UE reports the BSR to the MeNB based on the buffer status of the MCG bearer 1 and the MCG bearer 2.
  • the data of the split bearer is smaller than the threshold. According to the pre-configuration, the split bearer does not need to be allocated to the MeNB. Therefore, the BSR that splits the bearer is not reported to the MeNB.
  • the UL grant is a UL grant based on the BSR scheduling of the MCG bearer1 and the MCG bearer2 reported by the UE. Therefore, in this case, the UL grant for data transmission by the MCG bearer 2 is preempted by the split bearer. Therefore, the service QoS of the MCG bearer2 is not guaranteed.
  • embodiments of the present invention provide a method and apparatus for uplink data transmission in a dual connectivity system.
  • FIG. 3 is a schematic flowchart of a method 100 for uplink data transmission according to an embodiment of the present invention.
  • the method 100 may be performed by a MAC entity in a user equipment UE, and the method may be performed.
  • the dual connectivity system includes two base stations, a first base station and a second base station, a first MAC entity of the user equipment corresponding to the first base station, and a second MAC entity of the user equipment and the second base station correspond.
  • the method 100 includes:
  • the user equipment acquires resource allocation information sent by the first base station.
  • the first MAC entity of the user equipment allocates transmission resources for the split bearer according to the resource allocation information, and/or the first MAC entity sends data transmission indication information to the PDCP layer of the packet data convergence protocol of the user equipment,
  • the data transmission indication information indicates that the PDCP layer sends the data of the split bearer to the first MAC entity, or the data transmission indication information indicates a transmission resource allocated to the split bearer, or the data transmission indication information indicates the first MAC entity.
  • the transmission opportunity allocated for the split bearer is not limited to the PDCP layer sends the data of the split bearer to the first MAC entity, or the data transmission indication information indicates a transmission resource allocated to the split bearer, or the data transmission indication information indicates the first MAC entity.
  • the first MAC entity of the user equipment acquires the resource allocation information sent by the first base station, and when the user equipment determines that the data volume of the split bearer is less than or equal to a preset value, and the first MAC entity has sent the first MAC address to the first base station.
  • the first MAC entity allocates resources for the split bearer according to the resource allocation information sent by the first base station, and/ Or the first MAC entity sends data transmission indication information to the PDCP layer of the user equipment, where the data transmission indication information is used to indicate that the PDCP layer sends the split bearer data to the first MAC entity, or the data transmission indication information indicates that the data is allocated to the PDMC layer. Split the transmission resources of the bearer.
  • the data volume of the split bearer is greater than a preset value, or the data volume of the split bearer is less than a preset value and has been
  • the buffer status report including the split bearer buffer status information is sent to the base station
  • the split bearer is allocated resources, and is sent by the MAC entity to the PDCP layer.
  • the data transmission indication information is sent, so that the data of the split bearer is transmitted by the PDCP layer, so that the splitting of the bearer resources can be avoided, the resources are wasted, the quality of other services is affected, and the fairness of different services is ensured, thereby improving resource utilization efficiency.
  • one user equipment will configure two cell groups: a primary cell group (MCG) and a secondary cell group (SCG).
  • MCG refers to a cell group associated with the primary base station MeNB
  • SCG refers to a cell group associated with the secondary base station SeNB.
  • the first base station may be the primary base station, and the second base station is the secondary base station; or the first base station is the secondary base station, and the second base station is the primary base station.
  • the first base station is the primary base station and the second base station is the secondary base station
  • the first MAC entity is the MCG MAC entity corresponding to the primary base station or the primary cell group in the UE
  • the second MAC entity is the UE and the secondary base station or the secondary The SCG MAC entity corresponding to the cell group
  • the first base station is the secondary base station and the second base station is the primary base station
  • the second MAC entity is the MCG MAC entity corresponding to the primary base station or the primary cell group in the UE
  • the first MAC The entity is an SCG MAC entity corresponding to the secondary base station or the secondary cell group in the UE. Therefore, the first base station in the embodiment of the present invention may be the primary base station or the secondary base station, and the present invention is not limited thereto.
  • the first MAC entity acquires resource allocation information sent by the first base station.
  • the resource allocation information may be acquired by using a PDCCH, where the resource allocation information includes resources allocated for the user equipment.
  • the MCG MAC entity corresponding to the primary base station receives the resource allocation information sent by the primary base station
  • the SCG MAC entity corresponding to the secondary base station receives the resource allocation information sent by the secondary base station
  • the MCG MAC entity and the SCG MAC entity receive the corresponding information.
  • the resource allocation information transmitted by the base station is not limited to the present invention.
  • the first MAC entity when the user equipment determines that the data volume of the split bearer is less than or equal to a preset value, and the first MAC entity has sent the first buffer status report BSR including the data buffer state information of the split bearer to the first base station, Or, when the amount of data of the split bearer is greater than the preset value, the first MAC entity allocates a transmission resource to the split bearer according to the resource allocation information, and/or sends the packet data convergence protocol PDCP layer to the user equipment.
  • the data transmission indication information indicates that the PDCP layer sends the data of the split bearer to the first MAC entity, or indicates a transmission resource allocated to the split bearer.
  • the BSR may be reported by the MAC entity according to the prior art.
  • the BSR may include a short BSR (Short BSR) and a long BSR (Long BSR) format, and the UE may be triggered to send the BSR by using multiple conditions.
  • the invention is not limited to this.
  • the BSR may be empty and have a new score.
  • the UE is triggered to send the BSR.
  • the UE may be triggered to send a BSR.
  • This BSR can be called "Regular BSR”.
  • the preset value may be set according to actual conditions. After the preset value is determined by the primary base station, the preset value is sent to the user equipment, and the user equipment saves the preset value; optionally, the preset value may also be pre-configured in the user equipment, and the present invention is Not limited to this.
  • the BSR when the amount of data of the split bearer is less than or equal to a preset value, if the first MAC entity has sent the BSR to the first base station that sends the resource allocation information, the BSR includes the data of the split bearer. Cache status information, where the data buffer status information may include the amount of data of the split bearer, or a BS value, the first MAC entity may allocate resources for the split bearer according to the resource allocation information, and then send a data transmission indication to the PDCP layer.
  • the data transmission indication information indicates that the PDCP layer sends the data of the split bearer to the first MAC entity; or the first MAC entity sends the data transmission indication information to the PDCP layer according to the resource allocation information, where the data transmission indication information indicates that the information is allocated to the split. Hosted resources.
  • the PDCP layer After receiving the data transmission indication information, the PDCP layer sends the split bearer data to the first MAC entity according to the data transmission indication information, so that the first MAC entity sends the split bearer data to the first base station.
  • the first MAC entity may allocate resources for the split bearer according to resource allocation information sent by the first base station, and/or the first MAC address.
  • the entity sends data transmission indication information to the PDCP layer, where the data transmission indication information indicates that the PDCP layer sends the data of the split bearer to the first MAC entity, or the data transmission indication information indicates the resource allocated to the split bearer.
  • the second MAC entity when the amount of data of the split bearer is greater than a preset value, the second MAC entity sends a BSR that includes the data cache state information of the split bearer to the first base station, and the second MAC entity also sends the data to the first base station.
  • the first base station sends a BSR that includes the data buffer state information of the split bearer.
  • the first MAC entity receives the resource allocation information sent by the first base station, and after the first MAC entity has sent the BSR to the first base station, according to the The resource allocation information, the first MAC entity allocates resources for the split bearer, and/or the first MAC entity sends data transmission indication information to the PDCP layer, where the data transmission indication information indicates that the PDCP layer sends the data of the split bearer to the first MAC entity. Or the data transmission indication information indicates the resource allocated to the split bearer source.
  • the first MAC entity when the amount of data of the split bearer is less than or equal to a preset value, if the first MAC entity does not send the BSR including the data cache information of the split bearer to the first base station that sends the resource allocation information, The first MAC entity does not allocate resources for the split bearer, and does not send data transmission indication information to the PDCP layer.
  • the data transmission of the split bearer that needs to be transmitted in the corresponding step may be sent in the process of performing the LCP in the UE.
  • the data transmission indication information of the data amount information; or the data amount of the total split transmission bearer that can be transmitted after the end of the LCP is performed, and the data transmission indication information including the total data amount information is transmitted, and the present invention is not limited thereto.
  • the first MAC entity determines that the split bearer is not allocated resources, and/or does not send the data transmission indication information to the PDCP layer, and may also consider that the split bearer transmission to the first base station is in a suspended state. After the first MAC entity receives the transmission resource for transmitting the split bearer, for example, the first MAC entity receives the resource allocation information sent by the first base station after reporting the BSR including the buffering state information of the split bearer. Then, the first MAC entity determines that the transmission of the split bearer can be restored, and may allocate resources for the split bearer, and/or may send data transmission indication information to the PDCP layer.
  • the first MAC entity determines that resources are not allocated for the split bearer, and/or does not send data transmission indication information to the PDCP layer, and the first MAC entity may also change the state variable Bj of the logical channel of the split bearer. Set to zero, and / or stop accumulating.
  • the first MAC entity receives the transmission resource for transmitting the split bearer, for example, the first MAC entity receives the resource allocation information sent by the first base station after reporting the BSR including the buffering state information of the split bearer. Then, the first MAC entity determines that the transmission of the split bearer can be restored, and may allocate resources for the split bearer, and/or may send data transmission indication information to the PDCP layer.
  • the MAC entity sends the data transmission indication information to the PDCP layer.
  • the MAC entity may send the data transmission indication to the PDCP layer by using a Radio Link Control (RLC) layer.
  • RLC Radio Link Control
  • Information the RLC layer sends the data transmission indication information to the PDCP layer.
  • the data of the split bearer may also be sent to the MAC entity through the RLC layer.
  • the PDCP layer sends data to the RLC layer, and the RLC layer transmits the data. Forward to the MAC entity.
  • the data volume of the split bearer is greater than a preset value, or the data volume of the split bearer is less than a preset value and has been
  • the buffer status report including the split bearer buffer status information is sent to the base station
  • the split bearer is allocated resources, and the MAC entity sends the data transmission indication information to the PDCP layer, so that the PDCP layer transmits the split bearer data, thereby enabling the PDCP layer to transmit the split bearer data. Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • a method for uplink data transmission in the dual connectivity system according to the embodiment of the present invention will be described below by taking a specific embodiment as an example.
  • FIG. 4 is a schematic flow chart showing a method of uplink data transmission in a dual connectivity system according to an embodiment of the present invention.
  • the user equipment UE is connected to two base stations, the primary base station MeNB corresponds to the MCG MAC entity in the UE, and the secondary base station SeNB corresponds to the SCG MAC entity in the UE, as shown in FIG. :
  • the split bearer only needs to be transmitted to one base station, and if it is determined that the split bearer is transmitted to the MeNB, then S201 to S206 may be performed; If it is determined that the split bearer is transmitted to the SeNB, then S207 to S212 may be performed.
  • the preset value may be sent to the user equipment in advance by the MeNB.
  • the UE when the data volume of the split bearer configured by the network is less than or equal to the preset value, and the UE is determined to report to the MeNB, the UE sends a BSR to the MeNB through the MCG MAC entity, where the BSR may include the cache of the split bearer.
  • Status information the cache status information may be the amount of data carried by the split, and may be referred to as a BS value.
  • the UE may detect the PDCCH channel sent by the MeNB, and the MCG MAC entity receives the resource allocation information (UL grant information) sent by the MeNB.
  • the resource allocation information includes resources allocated by the MeNB to the UE due to transmission of data.
  • the MAC entity in the UE determines whether a BSR including the buffer status information value of the split bearer has been sent to the MeNB, thereby determining whether to allocate transmission resources for the split bearer in a subsequent LCP process, and determining whether to transmit to the PDCP.
  • the layer reports data transmission indication information.
  • the S205 may be performed. Conversely, if the SSR including the buffer status information of the split bearer is not sent in S201 Then, S204 is executed.
  • the MCG MAC entity since the MCG MAC entity receives the resource splitting information sent by the MeNB, but does not previously send the BSR including the buffering state information of the split bearer, the MCG MAC entity does not allocate the transmission and the split bearer in the subsequent LCP process. And the MCG MAC entity does not report the data transmission indication information to the PDCP entity.
  • the MCG MAC entity allocates the transmission resource for the split bearer in the subsequent LCP process, and then determines the transmission resource that can be allocated for the split bearer, the MCG MAC entity
  • the data transmission indication information is reported to the PDCP layer.
  • the transmission indication information is used to indicate that the PDCP layer sends the data of the split bearer or the transmission resource of the split bearer to the MCG MAC entity. Further, the data transmission indication information may specifically indicate how much data the PDCP layer should deliver to the lower layer.
  • the MCG MAC entity may send data transmission indication information to the PDCP layer according to the data volume of the split bearer that can be uploaded in the corresponding step in each step of performing the LCP process.
  • the data transmission indication information may be sent to the PDCP layer according to the total amount of data of the split bearer that can be uploaded.
  • the MCG MAC entity may send the data transmission indication information to the PDCP layer through the RLC layer.
  • the PDCP layer may also send the split bearer data to the MCG MAC entity through the RLC layer.
  • the data of the received split bearer is multiplexed in the MAC layer and then transmitted to the MeNB.
  • the UE sends a BSR to the SeNB through the SCG MAC entity, where the BSR may include the cache of the split bearer.
  • Status information the cache status information may be the amount of data carried by the split, and may be referred to as a BS value.
  • the UE may detect the PDCCH channel sent by the SeNB, and the SCG MAC entity receives the resource allocation information (UL grant information) sent by the SeNB.
  • the resource allocation information includes resources allocated by the SeNB to the UE for transmitting data.
  • the MAC entity in the UE determines whether a BSR including the buffer status information value of the split bearer has been sent to the SeNB, thereby determining whether to allocate transmission resources for the split bearer in a subsequent LCP process, and determining whether to PDCP.
  • the layer reports data transmission indication information.
  • the S211 may be performed. Conversely, if the BSR including the buffer status information of the split bearer is not transmitted in S207, then S210 is performed.
  • the SCG MAC entity since the SCG MAC entity receives the resource splitting information sent by the SeNB, but does not previously send the BSR including the buffering state information of the split bearer, the SCG MAC entity does not allocate the transmission and the split bearer in the subsequent LCP process. And the SCG MAC entity does not report the data transmission indication information to the PDCP entity.
  • the SCG MAC entity allocates the transmission resource for the split bearer in the subsequent LCP process, and then determines the transmission resource that can be allocated for the split bearer, the SCG MAC entity
  • the data transmission indication information is reported to the PDCP layer.
  • the transmission indication information is used to indicate that the PDCP layer sends the data of the split bearer or the transmission resource of the split bearer to the SCG MAC entity. Further, the data transmission indication information may specifically indicate how much data the PDCP layer should deliver to the lower layer.
  • the SCG MAC entity may send data transmission indication information to the PDCP layer according to the data volume of the split bearer that can be uploaded in the corresponding step in each step of performing the LCP process.
  • the data transmission indication information may be sent to the PDCP layer according to the total amount of data of the split bearer that can be uploaded.
  • the SCG MAC entity may send the data transmission indication information to the PDCP layer through the RLC layer.
  • the PDCP layer may also send the split bearer data to the SCG MAC entity through the RLC layer.
  • the data of the received split bearer is multiplexed in the MAC layer and transmitted to the SeNB.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the data volume of the split bearer is greater than a preset value, or the data volume of the split bearer is less than a preset value and has been
  • the buffer status report including the split bearer buffer status information is sent to the base station
  • the split bearer is allocated resources, and the MAC entity sends the data transmission indication information to the PDCP layer, so that the PDCP layer transmits the split bearer data, thereby enabling the PDCP layer to transmit the split bearer data. Avoid Separating bearers to seize resources leads to waste of resources and affects the transmission quality of other services, ensuring the fairness of different services, thereby improving resource utilization efficiency.
  • FIG. 5 is a schematic flow chart showing a method of uplink data transmission in a dual connectivity system according to still another embodiment of the present invention.
  • the user equipment UE is connected to two base stations, the primary base station MeNB corresponds to the MCG MAC entity in the UE, and the secondary base station SeNB corresponds to the SCG MAC entity in the UE, as shown in FIG. :
  • the split bearer needs to be transmitted to two base stations:
  • the UE when it is determined that the data volume of the split bearer configured by the network is greater than a preset value, the UE needs to transmit the split bearer to the MeNB and the SeNB.
  • the UE sends a BSR to the MeNB through the MCG MAC entity, and the BSR may include the buffer status information of the split bearer, where the buffer status information may be the data amount of the split bearer, which may be referred to as a BS value.
  • the UE sends a BSR to the SeNB through the SCG MAC entity, and the BSR may include the buffer status information of the split bearer, where the buffer status information may be the data amount of the split bearer, which may be referred to as a BS value.
  • the UE may detect the PDCCH channel sent by the MeNB, and the MCG MAC entity receives the resource allocation information (UL grant information) sent by the MeNB.
  • the resource allocation information includes resources allocated by the MeNB to the UE due to transmission of data.
  • the UE may detect the PDCCH channel sent by the SeNB, and the SCG MAC entity receives the resource allocation information (UL grant information) sent by the SeNB.
  • the resource allocation information includes resources allocated by the MeNB to the UE due to transmission of data.
  • the UE determines that the MAC entity has sent the BSR including the buffer status information value of the split bearer to the MeNB and the SeNB respectively, and the MCG MAC entity and the SCG MAC entity respectively perform respective
  • the LCP process determines the transmission resources that can be allocated to the split bearer according to the execution of the LCP, and then the MCG MAC entity and the SCG MAC entity send the indication information of the data transmission to the PDCP layer according to the resources that can be allocated to the split bearer, and the data transmission indication
  • the information is used to indicate that the PDCP layer sends the data of the split bearer to the MCG MAC entity and the SCG MAC entity or the transmission resource indicating the split bearer. Further, the data transmission indication information may specifically indicate how much data the PDCP layer should deliver to the lower layer.
  • the MCG MAC entity and the SCG MAC entity respectively perform an LCP process, which may When each step of the LCP process is performed separately, the amount of data of the split bearer that can be transmitted is determined according to the transmission resource that can be allocated to the split bearer in this step, and then the data transmission indication information is transmitted to the PDCP layer.
  • the MCG MAC entity and the SCG MAC entity perform all the steps of the corresponding LCP process, determine the amount of data that can be sent by the split bearer according to the total resources that can be allocated to the split bearer, and then go to the PDCP layer. Send data transmission indication information.
  • the UE sends the split bearer data to the MeNB according to the UL grant information.
  • the UE sends the split bearer data to the SeNB according to the UL grant information.
  • the amount of data of the split bearer is greater than a preset value
  • the UE may directly perform S304 and S308 after determining that the data volume of the split bearer is greater than a preset value, without determining whether to The MeNB and the SeNB transmit a BSR including buffer status information of the split bearer.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the data volume of the split bearer is greater than a preset value, or the data volume of the split bearer is less than a preset value and has been
  • the buffer status report including the split bearer buffer status information is sent to the base station
  • the split bearer is allocated resources, and the MAC entity sends the data transmission indication information to the PDCP layer, so that the PDCP layer transmits the split bearer data, thereby enabling the PDCP layer to transmit the split bearer data. Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • FIG. 6 shows a schematic flowchart of a method 400 for uplink data transmission according to still another embodiment of the present invention.
  • the method 400 may be performed by a user equipment UE, and the method may be used in a dual connectivity system, where the dual connectivity system includes The two base stations, the first base station and the second base station, the first MAC entity of the user equipment corresponds to the first base station, and the second MAC entity of the user equipment corresponds to the second base station.
  • the method 400 includes:
  • the user equipment acquires resource allocation information sent by the first base station.
  • the user equipment determines that the amount of data of the split bearer is less than or equal to a preset value, and the first MAC entity of the user equipment is not configured, when the data volume of the split bearer is less than or equal to a preset value, the data of the split bearer is transmitted.
  • the user equipment determines that the first MAC entity does not send a buffer to the first base station that includes the data cache state information of the split bearer.
  • the first MAC entity does not allocate transmission resources for the split bearer, and/or does not send the data transmission indication information of the split bearer to the PDCP layer of the packet data convergence protocol of the user equipment.
  • the MAC entity of the user equipment receives the resource allocation information sent by the corresponding base station, if the MAC entity does not send the buffer status report including the split bearer buffer status information to the base station,
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission
  • the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer. Therefore, it is possible to avoid the waste of resources caused by splitting the bearer resources and affect the transmission quality of other services, and ensure the fairness of different services, thereby improving resource utilization efficiency.
  • one user equipment will configure two cell groups: a primary cell group (MCG) and a secondary cell group (SCG).
  • MCG refers to a cell group associated with the primary base station MeNB
  • SCG refers to a cell group associated with the secondary base station SeNB.
  • the first base station may be the primary base station, and the second base station is the secondary base station; or the first base station is the secondary base station, and the second base station is the primary base station.
  • the first base station is the primary base station and the second base station is the secondary base station
  • the first MAC entity is the MCG MAC entity corresponding to the primary base station or the primary cell group in the UE
  • the second MAC entity is the UE and the secondary base station or the secondary The SCG MAC entity corresponding to the cell group
  • the first base station is the secondary base station and the second base station is the primary base station
  • the second MAC entity is the MCG MAC entity corresponding to the primary base station or the primary cell group in the UE
  • the first MAC The entity is an SCG MAC entity corresponding to the secondary base station or the secondary cell group in the UE. Therefore, the first base station in the embodiment of the present invention may be the primary base station or the secondary base station, and the present invention is not limited thereto.
  • the first MAC entity acquires resource allocation information sent by the first base station.
  • the resource allocation information may be acquired by using a PDCCH, where the resource allocation information includes resources allocated for the user equipment.
  • the MCG MAC entity corresponding to the primary base station receives the resource allocation information sent by the primary base station
  • the SCG MAC entity corresponding to the secondary base station receives the resource allocation information sent by the secondary base station
  • the MCG MAC entity and the SCG MAC entity receive the corresponding information.
  • the resource allocation information transmitted by the base station is not limited to the present invention.
  • the first MAC entity when it is determined that the first MAC entity does not send the first buffer status report BSR including the data buffer status information of the split bearer to the first base station, or when the data volume of the split bearer is less than or equal to a preset value. And when the first MAC entity is not the MAC entity that transmits the data of the split bearer, the first MAC entity does not allocate resources for the split bearer, and/or, does not Transmitting, by the packet data convergence protocol PDCP layer of the user equipment, data transmission indication information of the split bearer.
  • the first The MAC entity also does not allocate transmission resources for the split bearer, and/or does not send data transmission indication information of the split bearer to the PDCP layer of the packet data convergence protocol of the user equipment.
  • the preset value may be set according to actual conditions. After the preset value is determined by the primary base station, the preset value is sent to the user equipment, and the user equipment saves the preset value; optionally, the preset value may also be pre-configured in the user equipment, and the present invention is Not limited to this.
  • the first A MAC entity may allocate the received resource to the second bearer, and the second bearer is a bearer other than the split bearer.
  • the second bearer may be a non-split bearer
  • the first MAC entity may allocate the resource to the second bearer according to the received resource allocation information.
  • the second bearer may also be another split bearer, where the other split bearer refers to a split bearer other than the split bearer that has been determined to be unable to allocate the resource. Then, the first MAC entity needs to determine again whether resources can be allocated for the second bearer. When the second bearer is less than or equal to the preset value and the first MAC entity has sent the BSR including the data buffer status report of the second bearer to the first base station, or when the second bearer is greater than the preset value, The first MAC entity may allocate resources for the second bearer, otherwise the resource may not be allocated for the second bearer.
  • the preset value may be set according to an actual situation. After the preset value is determined by the primary base station, the preset value is sent to the user equipment, and the user equipment saves the preset value; optionally, the preset value may also be pre-configured in the user equipment, and the present invention is Not limited to this.
  • the first MAC entity determines that resources are not allocated for the split bearer, and/or does not send data transmission indication information to the PDCP layer, it may be determined that the transmission of the split bearer to the first base station is in a suspended state. .
  • the transmission of the split bearer is determined to be resumed until the first MAC entity can allocate resources for the split bearer and/or can transmit data transmission indication information to the PDCP layer.
  • the suspended state of the split bearer may be implemented within the user equipment in one of the following manners.
  • the first MAC entity of the user equipment first determines that the transmission of the split bearer to the first base station is in a suspended state, and then performs radio resource control (Radio Resource Control, referred to as “RRC” for the user equipment.
  • RRC Radio Resource Control
  • the entity indicates that the split bearer is in a suspended state.
  • the RRC entity of the user equipment first determines that the transmission of the split bearer to the first base station is in a suspended state, and then sends an indication that the split bearer is in a suspended state to the first MAC entity of the user equipment. So that the first MAC entity determines that the transmission of the split bearer to the first base station is in a suspended state.
  • the PDCP entity of the user equipment first determines that the transmission of the split bearer to the first base station is in a suspended state, and then sends the split bearer to a suspended state to the first MAC entity of the user equipment, to And causing the first MAC entity to determine that the transmission of the split bearer to the first base station is in a suspended state.
  • the PDCP entity of the user equipment first determines that the transmission of the split bearer to the first base station is in a suspended state, and then sends the split bearer to a suspended state to the RRC entity of the user equipment, and then the RRC The entity sends an indication to the first MAC entity that the split bearer is in a suspended state, so that the first MAC entity determines that the split bearer transmission to the first base station is in a suspended state.
  • the first MAC entity may determine to recover the transmission of the split bearer and allocate resources for the split bearer.
  • the transmission of the split bearer may be restored first, and then the split bearer may be allocated resources; the split bearer may be allocated resources, and the split bearer transmission may be resumed, and the present invention is not limited thereto.
  • the first MAC entity may change the state variable of the logical channel of the split bearer. Bj is set to zero and the accumulation is stopped. The accumulation of the state variable Bj is restarted until the first MAC entity can allocate resources for the split bearer and/or can transmit data transfer indication information to the PDCP layer.
  • the state variable Bj of the logical channel of the split bearer may be greater than zero or less than Zero, that is, regardless of whether the state variable Bj of the logical channel of the split bearer is greater than zero or less than zero, the first MAC entity may not be sent to the first base station, including When the first buffer status of the data buffer status information of the split bearer reports the BSR, or when the data volume of the split bearer is less than or equal to a preset value and the first MAC entity is not the MAC entity that transmits the data of the split bearer, No resources are allocated for the split bearer, and/or no data transmission indication information is sent to the PDCP layer.
  • the first MAC entity may restart the accumulation of the state variable Bj and allocate resources for the split bearer.
  • the accumulation of the state variable Bj may be restarted, and resources may be allocated for the split bearer; resources may be allocated for the split bearer, and the accumulation of the state variable Bj may be restarted, and the present invention is not limited thereto.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the user equipment MAC entity after the user equipment MAC entity receives the resource allocation information sent by the corresponding base station, if the MAC entity does not send the buffer status report including the split bearer buffer status information to the base station, If the amount of data of the split bearer is less than the preset value, and the MAC entity is not a pre-configured MAC entity that performs the split bearer transmission, the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer. Therefore, it is possible to avoid the waste of resources caused by splitting the bearer resources and affect the transmission quality of other services, and ensure the fairness of different services, thereby improving resource utilization efficiency.
  • the method for uplink data transmission according to an embodiment of the present invention is described in detail above with reference to FIG. 2 to FIG. 6.
  • the user equipment for uplink data transmission according to an embodiment of the present invention will be described below with reference to FIG. 7 and FIG.
  • FIG. 7 shows a user equipment 500 for uplink data transmission according to an embodiment of the present invention.
  • the user equipment may be located in a dual connectivity system including two base stations, a first base station and a second base station, and a user equipment.
  • a MAC entity corresponds to the first base station
  • the second MAC entity of the user equipment corresponds to the second base station.
  • the user equipment 500 includes: an obtaining module 510, a processing module 520, and a sending module 530.
  • the obtaining module 510 is configured to: acquire resource allocation information sent by the first base station;
  • the processing module 520 is configured to: when the user equipment determines that the data volume of the split bearer is less than or equal to a preset value, and the sending module has sent a data cache that includes the split bearer to the first base station When the first buffer status of the status information reports the BSR, or when the user equipment determines that the data volume of the split bearer is greater than the preset value, the first MAC entity allocates transmission resources for the split bearer according to the resource allocation information, and Or, the first MAC entity sends, by using the sending module 530, data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, where the data transmission indication information indicates that the PDCP layer sends the split bearer to the first MAC entity.
  • the data, or data transmission indication information indicates a transmission resource allocated to the split bearer, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity for the split bearer.
  • the user equipment of the user equipment does not send a buffer status report including split bearer buffer status information to the base station.
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission, the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer. Therefore, it is possible to avoid the waste of resources caused by splitting the bearer resources and affect the transmission quality of other services, and ensure the fairness of different services, thereby improving resource utilization efficiency.
  • the user equipment is located in a dual connectivity system, where the user equipment includes a first MAC entity and a second MAC entity, where the first MAC entity and the second MAC entity are respectively used with the dual connectivity system.
  • the first base station in communication with the second base station.
  • the processing module 520 is specifically configured to: when determining that the data volume of the split bearer is greater than the preset value, and the user equipment has sent the second BSR to the first base station, the first MAC The entity, by the processing module 520, allocates a transmission resource to the split bearer according to the resource allocation information, and/or sends the data transmission indication information to the PDCP layer by using the sending module, where the second BSR includes the data buffer of the split bearer. status information.
  • the processing module 520 is specifically configured to: when it is determined that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity is a MAC entity that transmits data of the split bearer, The first MAC entity allocates transmission resources to the split bearer according to the resource allocation information by the processing module 520, and/or the sending module sends the data transmission indication information to the PDCP layer.
  • the processing module 520 is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the sending module does not send the data cache including the split bearer to the first base station When the first BSR of the status information is used, the transmission resource is not allocated for the split bearer, and/or the data transmission indication information of the split bearer is not sent to the PDCP layer.
  • the processing module 520 is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the sending module does not send the data cache including the split bearer to the first base station When the first BSR of the status information is not allocated the transmission resource for the split bearer, and/or the first MAC entity of the user equipment does not send the data transmission indication information to the PDCP layer.
  • the sending module 530 is specifically configured to: send, by using a radio link, the RLC layer to send the data transmission indication information to the PDCP layer.
  • the processing module 520 is specifically configured to: when the transmission of the split bearer to the first base station is in a suspended state, determine to restore the transmission of the split bearer, and allocate a transmission resource for the split bearer. .
  • the processing module 520 is specifically configured to: restart the accumulation of the state variable Bj of the logical channel of the split bearer, and allocate a transmission resource for the split bearer.
  • the first base station is a primary base station, and the second base station is a secondary base station; or the first base station is a secondary base station, and the second base station is a primary base station.
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the acquiring module 510 is specifically configured to: obtain the resource allocation information by using a physical downlink control channel PDCCH channel.
  • the processing module 520 is specifically configured to: in the process of the logical channel priority LCP, the first MAC entity allocates a transmission resource to the split bearer by using the processing module 520; The split carries the allocated transmission resource, and sends the data transmission indication information to the PDCP layer.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer, and the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the split.
  • the amount of data that can be transmitted by the assigned bearer is represented as the physical resource quantity allocated by the split bearer, and the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the split. The amount of data that can be transmitted by the assigned bearer.
  • the user equipment 500 for uplink data transmission may correspond to performing the method 100 in the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 500 are respectively implemented for The corresponding processes of each method in 3 are not repeated here for brevity.
  • the user equipment of the uplink data transmission in the embodiment of the present invention does not send the split bearer to the base station if the MAC entity does not send the resource allocation information.
  • the buffer status report of the status information is stored, or the amount of data of the split bearer is smaller than a preset value, and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission, resources are not allocated for the split bearer, and are not sent to the PDCP layer.
  • the data transmission indication information of the split bearer can avoid the waste of resources caused by the split bearer preempting resources and affect the transmission quality of other services, thereby ensuring the fairness of different services, thereby improving resource utilization efficiency.
  • the user equipment 600 may be located in a dual connectivity system including two base stations, a first base station and a second base station, of the user equipment.
  • the first MAC entity corresponds to the first base station
  • the second MAC entity of the user equipment corresponds to the second base station.
  • the user equipment includes:
  • the obtaining module 610 is configured to obtain resource allocation information sent by the first base station
  • the processing module 620 is configured to: when determining that the amount of data of the split bearer is less than or equal to a preset value, and the first MAC entity of the user equipment is not configured, when the data volume of the split bearer is less than or equal to a preset value, the data of the split bearer is transmitted.
  • the MAC entity does not send the buffer status report BSR including the data buffer status information of the split bearer to the first base station, the transmission resource is not allocated for the split bearer, and/or
  • the packet data convergence protocol PDCP layer of the user equipment sends the data transmission indication information of the split bearer.
  • the user equipment of the uplink data transmission in the embodiment of the present invention does not send a buffer status report including the split bearer buffer status information to the base station, or
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission
  • the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer, thereby enabling Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • the user equipment is located in a dual connectivity system, where the user equipment includes a first MAC entity and a second MAC entity, where the first MAC entity and the second MAC entity are respectively used with the dual connectivity system.
  • the first base station in communication with the second base station.
  • the processing module 620 is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and not sending the data cache state information including the split bearer to the first base station In the first BSR, the transmission resource is not allocated for the split bearer, and/or the data transmission indication information is not sent to the PDCP layer.
  • the user equipment may further include a sending module, where the processing module The block 620 is specifically configured to: when it is determined that the data volume of the split bearer is less than or equal to the preset value, and the BSR that includes the data buffer state information of the split bearer has been sent to the first base station, or when determining the split bearer
  • the first MAC entity allocates transmission resources to the split bearer according to the resource allocation information by the processing module 620, and/or the first MAC entity of the user equipment sends the
  • the packet data convergence protocol PDCP layer of the user equipment sends data transmission indication information, where the data transmission indication information indicates that the PDCP layer sends the split bearer data to the first MAC entity, or the data transmission indication information indicates that the split bearer is allocated to the split bearer.
  • the transmission resource, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity for the split bearer.
  • the processing module 620 is specifically configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the first MAC entity is a MAC entity that transmits data of the split bearer, The first MAC entity allocates transmission resources to the split bearer according to the resource allocation information by the processing module 620, and/or the first MAC entity sends the data transmission indication information to the PDCP layer.
  • the processing module 620 is specifically configured to: when the value of the state variable Bj of the logical channel of the split bearer is greater than zero, allocate a transmission resource for the split bearer.
  • the processing module 620 is specifically configured to: determine that the transmission of the split bearer to the first base station is in a suspended state.
  • the processing module 620 is specifically configured to: when the data volume of the split bearer is less than or equal to a preset value, and the first MAC entity has sent a data cache including the split bearer to the first base station.
  • the first MAC entity determines, by the processing module 620, to resume the transmission of the split bearer to the first base station, and A transmission resource is allocated for the split bearer.
  • the processing module 620 is specifically configured to: set the state variable Bj of the logical channel of the split bearer to zero, and/or stop the accumulation of the state variable Bj.
  • the processing module 620 is specifically configured to: when the data volume of the split bearer is less than or equal to a preset value, and the first MAC entity has sent a data cache including the split bearer to the first base station.
  • the first buffer status of the status information reports the BSR, or when the data volume of the split bearer is greater than the preset value, the first MAC entity restarts the accumulation of the state variable Bj through the processing module 620, and is the split bearer. Allocate transmission resources.
  • the first base station is a primary base station, and the second base station is a secondary base station; Or the first base station is a secondary base station, and the second base station is a primary base station.
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer, and the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the split.
  • the amount of data that can be transmitted by the assigned bearer is represented as the physical resource quantity allocated by the split bearer, and the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the split. The amount of data that can be transmitted by the assigned bearer.
  • the user equipment 600 for uplink data transmission may correspond to performing the method 200 in the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 600 are respectively implemented for The corresponding processes of each method in 6 are not repeated here for brevity.
  • the user equipment of the user equipment does not send a buffer status report including split bearer buffer status information to the base station.
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission, the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer. Therefore, it is possible to avoid the waste of resources caused by splitting the bearer resources and affect the transmission quality of other services, and ensure the fairness of different services, thereby improving resource utilization efficiency.
  • the embodiment of the present invention further provides a user equipment 800 for uplink data transmission.
  • the user equipment 800 includes a processor 810, a memory 820, a transceiver 830, and a bus system 840.
  • the processor 810, the memory 820 and the transceiver 830 are connected by a bus system 840 for storing instructions for executing the instructions stored by the memory 820 to control the transceiver 830 to send and receive signals.
  • the transceiver 830 is configured to: acquire resource allocation information sent by the first base station, where the processor 810 is configured to: when determining that the data volume of the split bearer is less than or equal to a preset value, and the transceiver has been sent to the first base station When the first buffer status report BSR including the data buffer status information of the split bearer is sent, or when the data amount of the split bearer is greater than the preset value, the transmission resource is allocated for the split bearer according to the resource allocation information, and Or transmitting, by the transceiver, the data transmission indication information to the packet data convergence protocol PDCP layer of the user equipment, where the data transmission indication information indicates that the PDCP layer sends the split bearer data to the first MAC entity of the user equipment. Or the data transmission indication information indicates the transmission resource allocated by the first MAC entity to the split bearer, or the data transmission indication information indicates a transmission opportunity allocated by the first MAC entity to the split bearer.
  • the user equipment of the uplink data transmission in the embodiment of the present invention does not send a buffer status report including the split bearer buffer status information to the base station, or
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission
  • the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer, thereby enabling Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • the processor 810 may be a central processing unit (“CPU"), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 820 can include read only memory and random access memory and provides instructions and data to the processor 810. A portion of the memory 820 may also include a non-volatile random access memory. For example, the memory 820 can also store information of the device type.
  • the bus system 840 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 840 in the figure.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 820, and the processor 810 reads the information in the memory 820 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor 810 is specifically configured to: when determining that the data volume of the split bearer is greater than the preset value, and the sending and receiving has sent the second BSR to the first base station, according to the resource allocation information And allocating the transmission resource to the split bearer, and/or sending the data transmission indication information to the PDCP layer by using the transceiver, where the second BSR includes data buffer state information of the split bearer.
  • the processor 810 is specifically configured to: when the split bearer is sent to the When the transmission of the first base station is in a suspended state, it is determined to restore the transmission of the split bearer, and allocate transmission resources for the split bearer.
  • the processor 810 is specifically configured to: restart the accumulation of the state variable Bj of the logical channel of the split bearer, and allocate a transmission resource for the split bearer.
  • the first base station is a primary base station, and the second base station is a secondary base station; or the first base station is a secondary base station, and the second base station is a primary base station.
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the processor 810 is specifically configured to: allocate, in the logical channel priority LCP, a transmission resource for the split bearer; according to the transmission resource allocated for the split bearer, use the transceiver to The PDCP layer transmits the data transmission indication information.
  • the transmission resource allocated by the first MAC entity to the split bearer is represented as a physical resource quantity allocated by the split bearer, and the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the split.
  • the amount of data that can be transmitted by the assigned bearer is represented as the physical resource quantity allocated by the split bearer, and the transmission opportunity allocated by the first MAC entity to the split bearer is represented as the split. The amount of data that can be transmitted by the assigned bearer.
  • the user equipment 800 may correspond to the user equipment 600 in the embodiment of the present invention, and may correspond to executing respective subjects in the method 100 according to an embodiment of the present invention, and each of the user equipments 800
  • the above and other operations and/or functions of the modules are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 2, and are not described herein again for brevity.
  • the user equipment of the uplink data transmission in the embodiment of the present invention does not send a buffer status report including the split bearer buffer status information to the base station, or
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission
  • the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer, thereby enabling Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • an embodiment of the present invention further provides a user equipment 900 for uplink data transmission.
  • the user equipment 900 includes a processor 910, a memory 920, a transceiver 930, and a bus system 940.
  • the processor 910 and the memory 920 are connected by a bus system 930 for storing instructions, and the processor 910 is configured to execute instructions stored by the memory 920 to control the transceiver 930 to send and receive signals.
  • the transceiver 930 is configured to: acquire resource allocation sent by the first base station.
  • the processor 910 is configured to: when determining that the amount of data of the split bearer is less than or equal to a preset value, and the transceiver does not send a buffer status report BSR including data buffer status information of the split bearer to the first base station, determining The transmission resource is not allocated for the split bearer, and/or the data transmission indication information of the split bearer is not sent to the packet data convergence protocol PDCP layer of the user equipment.
  • the user equipment of the uplink data transmission in the embodiment of the present invention does not send a buffer status report including the split bearer buffer status information to the base station, or
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission
  • the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer, thereby enabling Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • the processor 910 may be a central processing unit (“CPU"), and the processor 910 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 920 can include read only memory and random access memory and provides instructions and data to the processor 910. A portion of the memory 920 may also include a non-volatile random access memory. For example, the memory 920 can also store information of the device type.
  • the bus system 940 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 940 in the figure.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 910 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 920, and the processor 910 reads the information in the memory 920 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor 910 is further configured to: when the value of the state variable Bj of the logical channel of the split bearer is greater than zero, determine that the transmission resource is not allocated for the split bearer.
  • the processor 910 is further configured to: determine that the transmission of the split bearer to the first base station is in a suspended state.
  • the processor 910 is further configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the transceiver has sent a data cache including the split bearer to the first base station And determining, when the BSR of the status information is greater than the preset value, determining to restore the transmission of the split bearer to the first base station, and allocating transmission resources for the split bearer.
  • the processor 910 is further configured to: set the state variable Bj of the logical channel of the split bearer to zero, and/or stop the accumulation of the state variable Bj.
  • the processor 910 is further configured to: when determining that the data volume of the split bearer is less than or equal to the preset value, and the transceiver has sent a data cache including the split bearer to the first base station When the BSR of the status information is used, or when it is determined that the amount of data of the split bearer is greater than the preset value, the accumulation of the state variable Bj is restarted, and a transmission resource is allocated for the split bearer.
  • the first base station is a primary base station, and the second base station is a secondary base station; or the first base station is a secondary base station, and the second base station is a primary base station.
  • the preset value is sent by the primary base station to the user equipment.
  • the resource allocation information is uplink grant UL grant information.
  • the user equipment 900 may correspond to the user equipment 600 in the embodiment of the present invention, and may correspond to executing respective subjects in the method 400 according to an embodiment of the present invention, and each of the user equipments 900
  • the foregoing and other operations and/or functions of the modules are respectively implemented in order to implement the corresponding processes of the respective methods in FIG. 5, and are not described herein again for brevity.
  • the user equipment of the uplink data transmission in the embodiment of the present invention does not send a buffer status report including the split bearer buffer status information to the base station, or
  • the amount of data of the split bearer is less than the preset value and the MAC entity is not a pre-configured MAC entity that performs split bearer transmission
  • the resource is not allocated for the split bearer, and the data transmission indication information of the split bearer is not sent to the PDCP layer, thereby enabling Avoiding splitting bearers to occupy resources leads to waste of resources and affects the transmission quality of other services, ensuring fairness of different services, thereby improving resource utilization efficiency.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例涉及上行数据传输的方法和装置，该方法包括：用户设备获取该第一基站发送的资源分配信息；当用户设备确定分裂承载的数据量小于或等于预设值且已经向该第一基站发送包括该分裂承载的数据缓存状态信息的BSR时，或当该分裂承载的数据量大于该预设值时，该用户设备的第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，第一MAC实体向该用户设备的PDCP层发送数据传输指示信息。本发明实施例的上行数据传输的方法和装置，能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。

Description

上行数据传输的方法和装置 技术领域
本发明涉及通信领域，尤其涉及上行数据传输的方法和装置。
背景技术
为了支持更高的数据速率，以及支持用户设备UE能够同时聚合不同基站(例如宏基站和小型基站)的组成载波，第三代合作伙伴计划(the 3rd Generation Partner Project，简称“3GPP”)引入了双连接(Dual Connectivity，简称“DC”)技术。
DC技术的主要思想是将经过非理想回程链路(backhaul)相连的不同基站的载波进行聚合，以提高数据传输速率。
在双连接中，一个UE将同时连接到两个演进型基站(evolved Node B，简称“eNB”)，一个是主基站(Master eNB，简称“MeNB”)，另一个为次基站(Secondary eNB，简称“SeNB”)，MeNB和SeNB之间经过非理想的backhaul连接。
目前，3GPP确定的在双连接模式下MeNB和SeNB的协议栈，如图1所示：对于数据无线承载(Dada Radio Bearer，简称“DRB”)1来说，该DRB 1仅仅通过MeNB向用户设备UE发送。对于DRB 2，则一部分通过MeNB向UE发送，另一部分通过X2接口首先发送给SeNB，然后再由SeNB向UE发送。具体地，MeNB将该DRB2的一部分数据包，以分组数据汇聚协议(Packet Data Convergence Protocol，简称“PDCP”)协议数据单元(Protocol Data Unit，简称“PDU”)的数据包形式首先发送给SeNB，然后经过SeNB发送给UE。进一步，在LTE Release 13，为了提高上行数据传输速率，对于DRB 2的上行传输，UE可以将部分PDCP数据包向MeNB发送，同时将部分PDCP数据包向SeNB发送。由于上述DRB 2的数据被分裂成两部分分别通过不同的eNB进行传输，所以这个DRB 2称为分裂承载(split bearer)。
MAC实体只要得到了UL grant信息，就向PDCP层递交指示信息，以便于PDCP层发送数据。PDCP实体在接收到上行授予(UL grant)的时候，基于PDCP的数据量和门限值决定PDCP数据如何进行传输。
由于分裂承载的逻辑信道优先级高于其它承载的逻辑信道优先级，在UE接收到UL grant信息时，就向PDCP层指示数据传输，则分裂承载会被优先传输，但是，实际上该UL grant可能是MeNB基于UE上报的其它承载所调度的UL grant。因此，这种情况下其它承载进行数据传输的UL grant就会被分裂承载抢占，而使得其它承载的业务质量得不到保证。
另外，该分裂承载可能之前已经向SeNB上报缓存状态报告，当UE从SeNB得到UL grant信息时，该分裂承载的PDCP数据已经从MeNB传输，从而使得SeNB分配的UL grant由于分裂承载的数据包不够多而导致资源浪费。
发明内容
本发明提供了一种上行数据传输的方法和装置，能够提高系统性能。
第一方面，提供了一种上行数据传输的方法，该方法包括：用户设备获取第一基站发送的资源分配信息；当该用户设备确定分裂承载的数据量小于或等于预设值且该用户设备已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该用户设备确定该分裂承载的数据量大于该预设值时，该用户设备的第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，该用户设备的第一MAC实体向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或数据传输指示信息指示分配给该分裂承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
结合第一方面，在第一方面的一种实现方式中，该方法用于双连接系统中的用户设备，该用户设备包括第一MAC实体和第二MAC实体，该第一MAC实体和第二MAC实体分别用于与该双连接系统中的第一基站和第二基站相通信。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量大于该预设值时，该第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，该用户设备的第一MAC实体向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，包括：当该用户设备确定该分裂承载的数据量大于该预设值且该用户设 备已经向该第一基站发送第二BSR时，该第一MAC实体根据该资源分配信息，向该分裂承载分配传输资源，和/或，该第一MAC实体向该PDCP层发送该数据传输指示信息，该第二BSR包括该分裂承载的数据缓存状态信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量小于或等于该预设值且该第一MAC实体为传输该分裂承载的数据的MAC实体时，该第一MAC实体根据该资源分配信息，向该分裂承载分配传输资源，和/或，该第一MAC实体向该PDCP层发送该数据传输指示信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量小于或等于该预设值且该用户设备没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，该第一MAC实体不为该分裂承载分配传输资源，和/或，不向该PDCP层发送该分裂承载的数据传输指示信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量小于或等于该预设值且该用户设备没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，该第一MAC实体不为该分裂承载分配传输资源，和/或该用户设备的该第一MAC实体不向该PDCP层发送该数据传输指示信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一MAC实体不为该分裂承载分配传输资源，和/或，不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息，包括：该第一MAC实体根据资源分配信息，为第二承载分配资源，和/或，向该PDCP层发送该第二承载的数据传输指示信息，该第二承载为除了该分裂承载之外的其它承载，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该第二承载的数据，或该数据传输指示信息指示分配给该第二承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该第二承载分配的传输机会。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一MAC实体向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，包括：该第一MAC实体通过无线链路控制RLC层向该PDCP层发送该数据传输指示信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一MAC实体为该分裂承载分配传输资源，包括：当该分裂承载向该第一基站的传输处于挂起状态时，该第一MAC实体确定恢复该分裂承载的传输，并为该分裂承载分配传输资源。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一MAC实体为该分裂承载分配传输资源，包括：该第一MAC实体重新启动该分裂承载的逻辑信道的状态变量Bj的累加，并为该分裂承载分配传输资源。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该预设值为该主基站向该用户设备发送的。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该用户设备获取该第一基站发送的资源分配信息，包括：该用户设备通过物理下行控制信道PDCCH信道，获取该资源分配信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，该用户设备的第一MAC实体向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，包括：在逻辑信道优先级LCP过程中，该第一MAC实体为该分裂承载分配传输资源；该第一MAC实体根据为该分裂承载分配的传输资源，向该PDCP层发送该数据传输指示信息。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
第二方面，提供了一种上行数据传输的方法，该方法包括：用户设备获取第一基站发送的资源分配信息；当该用户设备确定分裂承载的数据量小于 或等于预设值且该用户设备的第一MAC实体不是配置的当分裂承载的数据量小于或等于预设值时传输该分裂承载的数据的MAC实体时，或者，该用户设备确定该第一MAC实体没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，该第一MAC实体不为该分裂承载分配传输资源，和/或，不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
结合第二方面，在第二方面的一种实现方式中，该方法用于双连接系统中的用户设备，该用户设备包括第一MAC实体和第二MAC实体，该第一MAC实体和第二MAC实体分别用于与该双连接系统中的第一基站和第二基站相通信。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量小于或等于该预设值且该用户设备的第一MAC实体没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，该用户设备不为该分裂承载分配传输资源，和/或，不向该PDCP层发送该数据传输指示信息。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量小于或等于该预设值且该用户设备已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当该用户设备确定该分裂承载的数据量大于该预设值时，该用户设备的第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，该第一MAC实体向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或该数据传输指示信息指示分配给该分裂承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，当该用户设备确定该分裂承载的数据量小于或等于该预设值且该第一MAC实体为传输该分裂承载的数据的MAC实体时，该第一MAC实体根据该资源分配信息，向该分裂承载分配传输资源，和/或，该第一MAC实体向该PDCP层发送该数据传输指示信息。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第一MAC实体不为该分裂承载分配传输资源，和/或，不向该用户设备的分 组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息，包括：该第一MAC实体根据资源分配信息，为第二承载分配资源，和/或，向该PDCP层发送该第二承载的数据传输指示信息，该第二承载为除了该分裂承载之外的其它承载，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该第二承载的数据，或该数据传输指示信息指示分配给该第二承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该第二承载分配的传输机会。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第二承载为非分裂承载，该第一MAC实体根据资源分配信息，为该第二承载分配资源，和/或，向该PDCP层发送该第二承载的数据传输指示信息。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第二承载为其它分裂承载，当该用户设备确定该第二承载的数据量小于或等于预设值且该用户设备已经向该第一基站发送包括该第二承载的数据缓存状态信息的缓存状态报告BSR时，或当该用户设备确定该第二承载的数据量大于该预设值时，该第一MAC实体根据资源分配信息，为该第二承载分配资源，和/或，向该PDCP层发送该第二承载的数据传输指示信息。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第一MAC实体不为该分裂承载分配传输资源，包括：当该分裂承载的逻辑信道的状态变量Bj的值大于零时，该第一MAC实体不为该分裂承载分配传输资源。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第一MAC实体不为该分裂承载分配传输资源，包括：该第一MAC实体确定该分裂承载向该第一基站的传输处于挂起状态。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该方法还包括：当该分裂承载的数据量小于或等于预设值且该用户设备已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体确定恢复该分裂承载向该第一基站的传输，并为该分裂承载分配传输资源。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该用户设备不为该分裂承载分配传输资源，包括：该第一MAC实体将该分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止该状态变量Bj的累加。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该方法还包括：当该分裂承载的数据量小于或等于预设值且该用户设备已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体重新启动该状态变量Bj的累加，并为该分裂承载分配传输资源。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该预设值为该主基站向该用户设备发送的。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
结合第二方面及其上述实现方式，在第二方面的另一种实现方式中，还包含第一方面及其实现方式中的任一种实现方式。
第三方面，提供了一种上行数据传输的用户设备，该用户设备包括：获取模块、处理模块和发送模块，该获取模块用于：获取第一基站发送的资源分配信息；该处理模块用于：当该用户设备确定分裂承载的数据量小于或等于预设值且该发送模块已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该用户设备确定该分裂承载的数据量大于该预设值时，该第一MAC实体通过处理模块根据该资源分配信息，为该分裂承载分配传输资源，和/或，该第一MAC实体通过该发送模块向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或数据传输指示信息指示分配给该分裂承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
结合第三方面，在第三方面的一种实现方式中，该用户设备位于双连接 系统中，该用户设备包括第一MAC实体和第二MAC实体，该第一MAC实体和第二MAC实体分别用于与该双连接系统中的第一基站和第二基站相通信。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该处理模块具体用于：当确定该分裂承载的数据量大于该预设值且该用户设备已经向该第一基站发送第二BSR时，该第一MAC实体通过该处理模块根据该资源分配信息，为该分裂承载分配传输资源，和/或，通过该发送模块向该PDCP层发送该数据传输指示信息，该第二BSR包括该分裂承载的数据缓存状态信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该处理模块具体用于：当确定该分裂承载的数据量小于或等于该预设值且该第一MAC实体为传输该分裂承载的数据的MAC实体时，该第一MAC实体通过该处理模块根据该资源分配信息，为该分裂承载分配传输资源，和/或，通过该发送模块向该PDCP层发送该数据传输指示信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该处理模块具体用于：当确定该分裂承载的数据量小于或等于该预设值且该发送模块没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，不为该分裂承载分配传输资源，和/或，不向该PDCP层发送该分裂承载的数据传输指示信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该处理模块具体用于：当确定该分裂承载的数据量小于或等于该预设值且该发送模块没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，不为该分裂承载分配传输资源，和/或该用户设备的该第一MAC实体不向该PDCP层发送该数据传输指示信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该发送模块具体用于：通过无线链路控制RLC层向该PDCP层发送该数据传输指示信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该处理模块具体用于：当该分裂承载向该第一基站的传输处于挂起状态时，确定恢复该分裂承载的传输，并为该分裂承载分配传输资源。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该 处理模块具体用于：重新启动该分裂承载的逻辑信道的状态变量Bj的累加，并为该分裂承载分配传输资源。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该预设值为该主基站向该用户设备发送的。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该获取模块具体用于：通过物理下行控制信道PDCCH信道，获取该资源分配信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该处理模块具体用于：在逻辑信道优先级LCP过程中，该第一MAC实体通过该处理模块为该分裂承载分配传输资源；该第一MAC实体通过该发送模块根据为该分裂承载分配的传输资源，向该PDCP层发送该数据传输指示信息。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
第四方面，提供了一种上行数据传输的用户设备，该用户设备包括：获取模块，用于获取该第一基站发送的资源分配信息；处理模块，用于当确定分裂承载的数据量小于或等于预设值且该用户设备的第一MAC实体不是配置的当分裂承载的数据量小于或等于预设值时传输该分裂承载的数据的MAC实体时，或者，该第一MAC实体没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，不为该分裂承载分配传输资源，和/或，不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
结合第四方面，在第四方面的一种实现方式中，该用户设备位于双连接系统中，该用户设备包括第一MAC实体和第二MAC实体，该第一MAC 实体和第二MAC实体分别用于与该双连接系统中的第一基站和第二基站相通信。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该处理模块具体用于：当确定该分裂承载的数据量小于或等于该预设值且没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，不为该分裂承载分配传输资源，和/或，不向该PDCP层发送该数据传输指示信息。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该用户设备还可以包括发送模块，该处理模块具体用于：当确定该分裂承载的数据量小于或等于该预设值且已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当确定该分裂承载的数据量大于该预设值时，该第一MAC实体通过该处理模块根据该资源分配信息，为该分裂承载分配传输资源，和/或，该第一MAC实体通过发送模块向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或该数据传输指示信息指示分配给该分裂承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该处理模块具体用于：当确定该分裂承载的数据量小于或等于该预设值且该第一MAC实体为传输该分裂承载的数据的MAC实体时，该第一MAC实体通过该处理模块根据该资源分配信息，向该分裂承载分配传输资源，和/或，该第一MAC实体通过发送模块向该PDCP层发送该数据传输指示信息。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该处理模块具体用于：当该分裂承载的逻辑信道的状态变量Bj的值大于零时，不为该分裂承载分配传输资源。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该处理模块具体用于：确定该分裂承载向该第一基站的传输处于挂起状态。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该处理模块还用于：当该分裂承载的数据量小于或等于预设值且该第一MAC实体已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC 实体通过该处理模块确定恢复该分裂承载向该第一基站的传输，并为该分裂承载分配传输资源。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该第一MAC实体通过该处理模块将该分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止该状态变量Bj的累加。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该处理模块还用于：当该分裂承载的数据量小于或等于预设值且该第一MAC实体已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体通过该处理模块重新启动该状态变量Bj的累加，并为该分裂承载分配传输资源。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该预设值为该主基站向该用户设备发送的。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
结合第四方面及其上述实现方式，在第四方面的另一种实现方式中，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
第五方面，提供了一种上行数据传输的用户设备，该用户设备包括存储器、处理器和收发器，该存储器用于存储指令或程序或程序代码，该处理器用于执行该存储器存储的指令或程序或程序代码，以控制收发器发送信号，以控制用户设备执行上述第一方面、第二方面，及其各种实现方式中的任一种上行数据传输的方法。作为可能的实现方式，以下列举说明：
其中一种实现方式中，该收发器用于：获取该第一基站发送的资源分配信息；该处理器用于：当确定分裂承载的数据量小于或等于预设值且该收发器已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存 状态报告BSR时，或当确定该分裂承载的数据量大于该预设值时，根据该资源分配信息，为该分裂承载分配传输资源，和/或，通过该收发器向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，其中，该数据传输指示信息指示该PDCP层向该用户设备的第一MAC实体发送该分裂承载的数据，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
结合第五方面，在第五方面的一种实现方式中，该处理器具体用于：当确定该分裂承载的数据量大于该预设值且该收发已经向该第一基站发送第二BSR时，根据该资源分配信息，为该分裂承载分配传输资源，和/或，通过该收发器向该PDCP层发送该数据传输指示信息，该第二BSR包括该分裂承载的数据缓存状态信息。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该处理器具体用于：当该分裂承载向该第一基站的传输处于挂起状态时，确定恢复该分裂承载的传输，并为该分裂承载分配传输资源。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该处理器具体用于：重新启动该分裂承载的逻辑信道的状态变量Bj的累加，并为该分裂承载分配传输资源。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该预设值为该主基站向该用户设备发送的。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该处理器具体用于：在逻辑信道优先级LCP过程中，为该分裂承载分配传输资源；根据为该分裂承载分配的传输资源，通过该收发器向该PDCP层发送该数据传输指示信息。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理 资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
第六方面，提供了一种上行数据传输的用户设备，该用户设备包括存储器、处理器和收发器，该存储器用于存储指令或程序或程序代码，该处理器用于执行该存储器存储的指令或程序或程序代码，以控制收发器发送信号，以控制用户设备执行上述第一方面、第二方面，及其各种实现方式中的任一种上行数据传输的方法。作为可能的实现方式，以下列举说明：
其中一种实现方式中，该收发器用于：获取该第一基站发送的资源分配信息；该处理器用于：当确定分裂承载的数据量小于或等于预设值且该用户设备的第一MAC实体不是配置的当分裂承载的数据量小于或等于预设值时传输该分裂承载的数据的MAC实体时，或者，当确定该收发器没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，确定不为该分裂承载分配传输资源，和/或不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
结合第六方面，在第六方面的一种实现方式中，该处理器具体用于：当该分裂承载的逻辑信道的状态变量Bj的值大于零时，确定不为该分裂承载分配传输资源。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该处理器具体用于：确定该分裂承载向该第一基站的传输处于挂起状态。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该处理器具体用于：当确定该分裂承载的数据量小于或等于该预设值且该收发器已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当确定该分裂承载的数据量大于该预设值时，确定恢复该分裂承载向该第一基站的传输，并为该分裂承载分配传输资源。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该处理器具体用于：将该分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止该状态变量Bj的累加。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该处理器具体用于：当确定该分裂承载的数据量小于或等于该预设值且该收发器已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时， 或当确定该分裂承载的数据量大于该预设值时，重新启动该状态变量Bj的累加，并为该分裂承载分配传输资源。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该预设值为该主基站向该用户设备发送的。
结合第六方面及其上述实现方式，在第六方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
第七方面，提供了一种处理装置，所述处理装置应用于用户设备。所述处理装置可以为用户设备中的一个或多个处理器或芯片。在其他可能情况下，所述处理装置也可以为用户设备本身。所述处理装置被配置用于控制用户设备，或所述用户设备被配置用于执行上述第一方面、第二方面，及其各种实现方式中的任一种上行数据传输的方法。
第八方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被用户设备的计算单元、处理单元或处理器运行时，使得所述用户设备执行上述第一方面、第二方面，及其各种实现方式中的任一种上行数据传输的方法。
第九方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得用户设备执行上述第一方面、第二方面，及其各种实现方式中的任一种上行数据传输的方法。
第十方面，提供了一种程序，使得用户设备执行上述第一方面、第二方面，及其各种实现方式中的任一种上行数据传输的方法。
基于上述技术方案，本发明实施例的上行数据传输的方法和装置，MAC实体收到基站发送的资源分配信息后，确定在分裂承载的数据量大于预设值，或分裂承载的数据量小于预设值且已经向该基站发送了包括分裂承载缓 存状态信息的缓存状态报告时，才为分裂承载分配资源，且向PDCP层发送数据传输指示信息，以便于PDCP层传输分裂承载的数据，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是根据本发明实施例的双连接系统的示意性流程图。
图2是根据本发明实施例的上行数据传输的方法的示意性流程图。
图3是根据本发明实施例的双上行数据传输的方法的示意性流程图。
图4是根据本发明实施例的上行数据传输的方法的另一示意性流程图。
图5是根据本发明实施例的上行数据传输的方法的再一示意性流程图。
图6是根据本发明实施例的上行数据传输的方法的再一示意性流程图。
图7是根据本发明实施例的上行数据传输的用户设备的示意性框图。
图8是根据本发明实施例的上行数据传输的用户设备的另一示意性框图。
图9是根据本发明实施例的上行数据传输的用户设备的再一示意性框图。
图10是根据本发明实施例的上行数据传输的用户设备的再一示意性框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
在双连接DC技术中，一个UE会配置两个小区组(Cell group，简称“CG”)，或者也叫组成载波组(CC group)：一个是主小区组(Master Cell  group，简称“MCG”)，另一个是辅小区组(Secondary Cell Group,简称“SCG”)。
MCG是指与MeNB相关联的一个小区组，由主小区(Primary Cell，PCell)以及零个或多个辅小区(Secondary Cell，SCell)构成。
SCG是指与SeNB相关联的一个小区组，由主的辅小区(Primary Secondary Cell，PSCell)以及零个或多个辅小区(Secondary Cell，SCell)构成。
其中，PCell是指UE建立无线资源控制(Radio Resource Control，简称“RRC”)连接的小区，该主小区提供安全相关的参数以及配置有物理上行链路控制信道(Physical Uplink Control Channel，简称PUCCH)资源。PSCell是指在辅小区组内配置有PUCCH资源的辅小区。除PCell和PSCell外，在MCG和SCG内的SCell都不配置PUCCH资源。PUCCH信道主要用于传输混合自动重传请求确认信息(HARQ-ACK)、信道状态信息(Channel State Information，CSI)和调度请求(Scheduling Request，SR)等信息。
对于一个用户设备UE而言，可能同时存在多个业务，或者多个DRB需要进行传输，则在在媒体接入控制(Medium Access Control，简称“MAC”)层UE需要根据基站分配的上行资源(有时候也称为上行授予UL grants),将多个DRB的数据进行复用后传输。在LTE中，每个DRB都对应一个逻辑信道并配置一个逻辑信道优先级。在LTE中，将多个DRB的数据进行复用传输的过程称为逻辑信道优先级(Logical Channel Prioritization，简称“LCP”)过程。
具体地，在现有的LCP过程执行当中，RRC层通过控制以下几个参数来对MAC调度进行控制，这些参数是逻辑信道优先级、优先级比特率(Prioritized Bit Rate，简称PBR)以及持续时间参量(Bucket Size Duration，简称BSD)。对每个逻辑信道，UE应该维护一个状态变量Bj。在相关的逻辑信道建立时，Bj应该被初始化为0，然后每个传输时间间隔(Transmission Time Interval，简称TTI)增加PBR,即基于PBR*TTI进行累积，也就是每个TTI加一个PBR。
PBR是对应逻辑信道j的PBR。但是，Bj的值从来不能超出令牌桶的大小，一个令牌桶的大小为PBR*BSD。并且如果Bj的值大于逻辑信道j的令牌桶时，则应该置Bj的值为PBR*BSD。其中，PBR可以被设置为无限大， 当某个逻辑信道被设置无限大的PBR时，则可以在资源紧张的情况下保证这个业务，而其他业务不会被服务。
令牌桶算法通过限制令牌桶容量，令牌添加速度实现速率限制，达到资源分配复用效果，同时对约定数据传输速率，控制突发会有广泛的应用。
当一个新的传输被执行时，UE执行如下的逻辑信道优先级处理过程，即UE应该按照如下步骤为逻辑信道分配资源：
1、按照逻辑信道降序的方式为所有令牌数不为空的逻辑信道分配资源。分配资源的大小基于令牌桶中令牌数的大小决定；
2、桶中令牌数减去上述步骤1中已经分配资源的MAC SDUs的大小，更新Bj，其中，Bj的值可能会是负的；
3、如果各个逻辑信道的数据获得服务后还有剩余的资源，则严格按照逻辑信道优先级的顺序依次获得服务(不考虑Bj的值)，直到所有的UL grant被用尽，或者直到那个逻辑信道的数据被复用完毕。具有相同逻辑信道优先级的逻辑信道平等接受服务。
图2是一个MAC复用的示意图，如图2所示，首先，DRB 1的传输达到其Bj后，则需要继续复用下一个DRB 2的数据。然后，类似地DRB 2的数据也达到其Bj后，则继续进行复用DRB 3的数据，在复用DRB 3的数据以后，如果有效的上行传输资源还有一定的剩余，此时可以进行第二轮复用。在第二轮复用中，则完全按照DRB的优先级的顺序从高到低进行复用，而不再受Bj的限制。如图2所示，在复用逻辑信道1的数据后，有效资源都被使用完毕。
进一步地，针对分裂承载，该分裂承载有时候可以仅仅通过一个eNB进行上行数据传输，而有时候，当该DRB的数据量比较大的时候，可以同时通过两个eNB进行上行数据的传输。当该分裂承载仅仅通过一个eNB进行数据传输时，则上述图2所述的LCP过程可以完全重用，该DRB需要保证的传输速率PBR也由一个eNB进行保证。
而该分裂承载同时通过两个eNB进行上行传输时(假设分裂承载为DRB2)，则该分裂承载需要分别在两个eNB配置独立的逻辑信道，一个逻辑信道针对MeNB，一个逻辑信道针对SeNB。该分裂承载的优先的保证速率PBR则通过两个eNB联合进行保证。因此，针对该分裂承载的两个逻辑信道，网络分别为该承载配置部分PBR，例如一个为PBR1是MeNB侧应该 保证的速率，PBR2是SeNB侧应该保证的速率，然后PBR1+PBR2＝PBR，或者，网络也可以配置PBR1和PBR2，使得PBR1和PBR2的和大于原始的PBR，这样可以提供该业务的QoS。
进一步地，为了协助网络为UE调度上行资源，UE需要向MeNB后者SeNB发送缓存状态上报了缓存状态报告(Buffer Status Report，简称“BSR”)，以使得eNB根据UE上报BSR中的缓存状态信息确定调度多少上行传输资源。RRC可以通过配置两个定时器，即periodic BSR-Timer和retx BSR-Timer来控制BSR的上报。另外，可选地，对每个逻辑信道，eNB可以将其分配到一个逻辑信道组，即LCG(logicalChannelGroup)。这里，引入LCG的目的，主要是为了降低信令开销。因为，如果为每一个逻辑信道上报一个BSR，会带来大量的信令开销。
对于分裂承载的BSR上报，目前的原则是如果分裂承载的PDCP数据量高于一定的门限值时，UE才触发向两个eNB，即MeNB和SeNB，分别上报BSR。否则如果PDCP数据量小于门限值，则UE仅仅向一个eNB上报BSR。
在本发明实施例中，假设有两个MCG承载，分别为MCG bearer 1和MCG bearer 2，还有一个分裂承载，其中，假设MCG bearer 1的逻辑信道优先级最高，分裂承载的逻辑信道优先级高于MCG Bearer 2的逻辑信道优先级。根据现有技术，UE在获得上行资源(UL grant)信息就会向PDCP层指示，这样MCG bearer 2的数据传输可能就会被分裂承载的传输影响。
例如，在某些时候，UE基于MCG bearer 1和MCG bearer 2的缓存状态上报了BSR给MeNB。而上报该BSR的时候，由于分裂承载的数据量小于门限，根据预先配置，该分裂承载不必分配给该MeNB，所以也没有向MeNB上报分裂承载的BSR。
但是，当UE指示从MeNB得到UL grant信息给PDCP时，因为分裂承载的逻辑信道优先级高于MCG bearer 2的优先级，因此会优先传输该分裂承载的数据，而MCG bearer2的数据将得不到传输。而实际上UL grant是MeNB基于UE上报的MCG bearer1和MCG bearer2的BSR调度的UL grant。因此，这种情况下MCG bearer 2进行数据传输的UL grant就会被分裂承载抢占。从而使得MCG bearer2的业务QoS得不到保证。而同时分裂承载可能之前上报BSR是向SeNB上报，当SCG MAC从SeNB得到UL grant后，则分裂 承载的PDCP数据已经从MeNB传输，从而使得SeNB分配的UL grant由于分裂承载的数据包不够多而导致资源浪费。因此，本发明实施例提出了一种双连接系统中上行数据传输的方法和装置。
具体地，在本发明实施例中，图3示出了根据本发明实施例的上行数据传输的方法100的示意性流程图，该方法100可以由用户设备UE中的MAC实体执行，该方法可以用于双连接系统中，该双连接系统包括两个基站，第一基站和第二基站，用户设备的第一MAC实体与第一基站相对应，用户设备的第二MAC实体与第二基站相对应。如图3所示，该方法100包括：
S110，该用户设备获取该第一基站发送的资源分配信息；
S120，当用户设备确定分裂承载的数据量小于或等于预设值且该用户设备已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该用户设备确定该分裂承载的数据量大于该预设值时，
该用户设备的第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，该第一MAC实体向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，
该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或数据传输指示信息指示分配给该分裂承载的传输资源，或或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
具体地，用户设备的第一MAC实体获取该第一基站发送的资源分配信息，当用户设备确定分裂承载的数据量小于或等于预设值时且该第一MAC实体已经向第一基站发送了包括分裂承载的数据缓存状态信息的第一BSR时，或当该分裂承载大于该预设时，该第一MAC实体才根据第一基站发送的资源分配信息，为该分裂承载分配资源，和/或该第一MAC实体向用户设备的PDCP层发送数据传输指示信息，该数据传输指示信息用于指示PDCP层向该第一MAC实体发送分裂承载的数据，或者该数据传输指示信息指示分配给该分裂承载的传输资源。
因此，本发明实施例的上行数据传输的方法，MAC实体收到相应的基站发送的资源分配信息后，在分裂承载的数据量大于预设值，或分裂承载的数据量小于预设值且已经向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，才为该分裂承载分配资源，并且由MAC实体向PDCP层发 送数据传输指示信息，以便于PDCP层传输分裂承载的数据，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
应理解，在双连接系统中，一个用户设备(UE)会配置两个小区组：主小区组(MCG)和辅小区组(SCG)。MCG是指与主基站MeNB相关联的一个小区组，SCG是指与次基站SeNB相关联的一个小区组。本发明实施例中的第一基站可以为主基站，则第二基站为次基站；或者第一基站为次基站，则第二基站为主基站。当第一基站为主基站、第二基站为次基站时，则第一MAC实体为UE中与主基站或主小区组相对应的MCG MAC实体，第二MAC实体为UE中与次基站或辅小区组相对应的SCG MAC实体；当第一基站为次基站、第二基站为主基站时，则第二MAC实体为UE中与主基站或主小区组相对应的MCG MAC实体，第一MAC实体为UE中与次基站或辅小区组相对应的SCG MAC实体。因此，本发明实施例中的第一基站为主基站或次基站都可以，本发明并不限于此。
在S110中，该第一MAC实体获取该第一基站发送的资源分配信息，可选地，可以通过PDCCH获取该资源分配信息，该资源分配信息包括为用户设备分配的资源。具体地，主基站对应的MCG MAC实体接收到主基站发送的资源分配信息，或者次基站对应的SCG MAC实体接收到次基站发送的资源分配信息，或者MCG MAC实体和SCG MAC实体均接收到对应的基站发送的资源分配信息，本发明并不限于此。
在S120中，当用户设备确定该分裂承载的数据量小于或等于预设值且该第一MAC实体已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或指示分配给该分裂承载的传输资源。
在本发明实施例中，根据现有技术，BSR可以通过MAC实体上报，BSR可以包括短BSR(Short BSR)和长BSR(Long BSR)两种格式，可以通过多种条件触发UE发送BSR，本发明并不限于此。例如，对于触发UE发送包括分裂承载的数据缓存状态信息的BSR，可以在当BSR为空且有新的分 裂承载的数据需要发送时，触发UE发送BSR。具体地，当所有的逻辑信道组(Logical Channel Group，简称“LCG”)的所有逻辑信道上都没有分裂承载的上行数据时，如果此时任意一个LCG的任意一个逻辑信息存在分裂承载的上行数据时，则可以触发UE发送BSR。对于这种UE第一次发送的BSR。该BSR可以称为“Regular BSR”。
在本发明实施例中，该预设值可以根据实际情况进行设定。该预设值可以由主基站确定后，将该预设值向用户设备发送，该用户设备保存该预设值；可选地，该预设值还可以在用户设备中预先配置，本发明并不限于此。
可选地，作为一个实施例，对于分裂承载的数据量小于或等于预设值时，若第一MAC实体已经向发送资源分配信息的第一基站发送了BSR，该BSR中包括分裂承载的数据缓存状态信息，该数据缓存状态信息可以包括分裂承载的数据量，或者称为BS值，则第一MAC实体可以根据该资源分配信息，为该分裂承载分配资源，然后向PDCP层发送数据传输指示信息，该数据传输指示信息指示PDCP层向该第一MAC实体发送分裂承载的数据；或者第一MAC实体根据资源分配信息，向PDCP层发送数据传输指示信息，该数据传输指示信息指示分配给分裂承载的资源。PDCP层接收到数据传输指示信息后，根据该数据传输指示信息向第一MAC实体发送分裂承载的数据，以便于第一MAC实体将该分裂承载的数据发送给第一基站。
可选地，作为一个实施例，对于分裂承载的数据量大于预设值时，该第一MAC实体可以根据第一基站发送的资源分配信息，为该分裂承载分配资源，和/或第一MAC实体向PDCP层发送数据传输指示信息，该数据传输指示信息指示PDCP层向该第一MAC实体发送分裂承载的数据，或者该数据传输指示信息指示分配给分裂承载的资源。
可选地，作为一个实施例，对于分裂承载的数据量大于预设值时，由于第一MAC实体会向第一基站发送包括分裂承载的数据缓存状态信息的BSR，第二MAC实体也会向第一基站发送包括分裂承载的数据缓存状态信息的BSR，因此，第一MAC实体接收第一基站发送的资源分配信息，可以在第一MAC实体已经向第一基站发送了该BSR后，根据该资源分配信息，第一MAC实体为该分裂承载分配资源，和/或第一MAC实体向PDCP层发送数据传输指示信息，该数据传输指示信息指示PDCP层向该第一MAC实体发送分裂承载的数据，或者该数据传输指示信息指示分配给分裂承载的资 源。
可选地，作为一个实施例，对于分裂承载的数据量小于或等于预设值时，若第一MAC实体还没有向发送资源分配信息的第一基站发送包括分裂承载的数据缓存信息的BSR，则第一MAC实体，不为该分裂承载分配资源，也不向PDCP层发送数据传输指示信息。
在本发明实施例中，当第一MAC实体确定要向PDCP层发送数据传输指示信息时，可以在UE执行LCP过程中，对于相应步骤中确定的需要传输的分裂承载的数据量，发送包括该数据量信息的该数据传输指示信息；或者可以在执行LCP结束后，确定总的可以传输的分裂承载的数据量，发送包括该总数据量信息的数据传输指示信息，本发明并不限于此。
在本发明实施例中，第一MAC实体确定不为该分裂承载分配资源，和/或不向PDCP层发送数据传输指示信息，也可以认为该分裂承载向第一基站的传输处于挂起状态。直到该第一MAC实体接收到用于传输该分裂承载的传输资源，例如，该第一MAC实体在上报了包括分裂承载的缓冲状态信息的BSR后，接收到第一基站发送的资源分配信息，则该第一MAC实体确定可以恢复该分裂承载的传输，且可以为该分裂承载分配资源，和/或可以向PDCP层发送数据传输指示信息时。
在本发明实施例中，第一MAC实体确定不为该分裂承载分配资源，和/或不向PDCP层发送数据传输指示信息，第一MAC实体也可以将该分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止累加。直到该第一MAC实体接收到用于传输该分裂承载的传输资源，例如，该第一MAC实体在上报了包括分裂承载的缓冲状态信息的BSR后，接收到第一基站发送的资源分配信息，则该第一MAC实体确定可以恢复该分裂承载的传输，且可以为该分裂承载分配资源，和/或可以向PDCP层发送数据传输指示信息时。
在本发明实施例中，MAC实体向PDCP层发送数据传输指示信息，可选地，该MAC实体可以通过无线链路控制(Radio Link Control，简称“RLC”)层向PDCP层发送该数据传输指示信息，该RLC层将该数据传输指示信息发送至PDCP层。
在本发明实施例中，PDCP层根据MAC实体发送的数据传输指示信息发送分裂承载的数据时，可选地，也可以通过RLC层向MAC实体发送该分裂承载的数据。具体地，PDCP层将数据发送至RLC层，RLC层将该数据 转发至MAC实体。
因此，本发明实施例的上行数据传输的方法，MAC实体收到相应的基站发送的资源分配信息后，在分裂承载的数据量大于预设值，或分裂承载的数据量小于预设值且已经向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，才为该分裂承载分配资源，并且由MAC实体向PDCP层发送数据传输指示信息，以便于PDCP层传输分裂承载的数据，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
下面将以具体实施例为例，对本发明实施例的双连接系统中的上行数据传输的方法进行说明。
图4示出了根据本发明实施例的双连接系统中的上行数据传输的方法的示意性流程图。该实施例针对双连接系统的场景，用户设备UE与两个基站相连，主基站MeNB与UE中的MCG MAC实体相对应，次基站SeNB与UE中的SCG MAC实体相对应，如图4所示：
在本发明实施例中，针对分裂承载的数据量小于或等于预设值的情况，该分裂承载只需向一个基站传输，如果确定将该分裂承载向MeNB传输，则可以进行S201至S206；如果确定将该分裂承载向SeNB传输，则可以进行S207至S212。可选地，该预设值可以为MeNB预先发送给用户设备的。
在S201中，当网络配置的分裂承载的数据量小于或等于预设值时，确定向MeNB上报的情况下，UE会通过MCG MAC实体向MeNB发送BSR，该BSR中可以包括该分裂承载的缓存状态信息，该缓存状态信息可以为该分裂承载的数据量，可以简称BS值。
在S202中，UE可以检测MeNB发送的PDCCH信道，由MCG MAC实体接收MeNB发送的资源分配信息(UL grant信息)。该资源分配信息中包括了MeNB分配给该UE由于传输数据的资源。
在S203中，UE中的MAC实体判断是否已经向MeNB发送了包括该分裂承载的缓存状态信息值的BSR，从而决定是否在随后的LCP过程中为该分裂承载分配传输资源，以及确定是否向PDCP层上报数据传输指示信息。
具体地，由于在S201中UE已经向MeNB发送了包括BS值的BSR，UE的MCG MAC实体获取到MeNB发送的UL grant信息后，则可以进行S205。相反地，若在S201中没有发送包括该分裂承载的缓存状态信息的BSR 时，则执行S204。
在S204中，由于MCG MAC实体接收到MeNB发送的资源分裂信息，但是之前没有发送包括该分裂承载的缓存状态信息的BSR，则MCG MAC实体在随后的LCP过程中不会为分裂承载分配传输与，并且MCG MAC实体也不向PDCP实体上报数据传输指示信息。
在S205中，由于UE已经向MeNB发送了包括BS值的BSR，则MCG MAC实体在随后的LCP过程中为分裂承载分配传输资源，然后确定可以为分裂承载分配的传输资源后，该MCG MAC实体向PDCP层上报数据传输指示信息，可选地，该传输指示信息用于指示该PDCP层向MCG MAC实体发送分裂承载的数据或指示该分裂承载的传输资源。进一步地，该数据传输指示信息可以具体指示PDCP层应该向低层递交多少数据。
具体地，MCG MAC实体可以是在执行LCP过程的每一个步骤中，根据相应步骤中确定的可以上传的分裂承载的数据量向PDCP层发送数据传输指示信息。或者，也可以是在该LCP过程的全部步骤都执行完毕后，根据总的可以上传的分裂承载的数据量向PDCP层发送数据传输指示信息。
可选地，MCG MAC实体可以通过RLC层向PDCP层发送数据传输指示信息，同样地，PDCP层也可以通过RLC层向MCG MAC实体发送分裂承载的数据。
在S206中，在MCG MAC实体向PDCP层发送了数据传输指示信息后，将接收到的分裂承载的数据在MAC层进行复用后传输给MeNB。
同样地，对于将该分裂承载向SeNB传输：
在S207中，当网络配置的分裂承载的数据量小于或等于预设值时，确定向SeNB上报的情况下，UE会通过SCG MAC实体向SeNB发送BSR，该BSR中可以包括该分裂承载的缓存状态信息，该缓存状态信息可以为该分裂承载的数据量，可以简称BS值。
在S208中，UE可以检测SeNB发送的PDCCH信道，由SCG MAC实体接收SeNB发送的资源分配信息(UL grant信息)。该资源分配信息中包括了SeNB分配给该UE由于传输数据的资源。
在S209中，UE中的MAC实体判断是否已经向SeNB发送了包括该分裂承载的缓存状态信息值的BSR，从而决定是否在随后的LCP过程中为该分裂承载分配传输资源，以及确定是否向PDCP层上报数据传输指示信息。
具体地，由于在S207中UE已经向SeNB发送了包括BS值的BSR，UE的SCG MAC实体获取到SeNB发送的UL grant信息后，则可以进行S211。相反地，若在S207中没有发送包括该分裂承载的缓存状态信息的BSR时，则执行S210。
在S210中，由于SCG MAC实体接收到SeNB发送的资源分裂信息，但是之前没有发送包括该分裂承载的缓存状态信息的BSR，则SCG MAC实体在随后的LCP过程中不会为分裂承载分配传输与，并且SCG MAC实体也不向PDCP实体上报数据传输指示信息。
在S211中，由于UE已经向SeNB发送了包括BS值的BSR，则SCG MAC实体在随后的LCP过程中为分裂承载分配传输资源，然后确定可以为分裂承载分配的传输资源后，该SCG MAC实体向PDCP层上报数据传输指示信息，可选地，该传输指示信息用于指示该PDCP层向SCG MAC实体发送分裂承载的数据或指示该分裂承载的传输资源。进一步地，该数据传输指示信息可以具体指示PDCP层应该向低层递交多少数据。
具体地，SCG MAC实体可以是在执行LCP过程的每一个步骤中，根据相应步骤中确定的可以上传的分裂承载的数据量向PDCP层发送数据传输指示信息。或者，也可以是在该LCP过程的全部步骤都执行完毕后，根据总的可以上传的分裂承载的数据量向PDCP层发送数据传输指示信息。
可选地，SCG MAC实体可以通过RLC层向PDCP层发送数据传输指示信息，同样地，PDCP层也可以通过RLC层向SCG MAC实体发送分裂承载的数据。
在S212中，在SCG MAC实体向PDCP层发送了数据传输指示信息后，将接收到的分裂承载的数据在MAC层进行复用后传输给SeNB。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
因此，本发明实施例的上行数据传输的方法，MAC实体收到相应的基站发送的资源分配信息后，在分裂承载的数据量大于预设值，或分裂承载的数据量小于预设值且已经向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，才为该分裂承载分配资源，并且由MAC实体向PDCP层发送数据传输指示信息，以便于PDCP层传输分裂承载的数据，从而能够避免 分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
图5示出了根据本发明再一实施例的双连接系统中的上行数据传输的方法的示意性流程图。该实施例针对双连接系统的场景，用户设备UE与两个基站相连，主基站MeNB与UE中的MCG MAC实体相对应，次基站SeNB与UE中的SCG MAC实体相对应，如图5所示：
在本发明实施例中，针对分裂承载的数据量大于预设值的情况，该分裂承载需要向两个基站传输：
在S301中，确定网络配置的分裂承载的数据量大于预设值时，UE需要向MeNB和SeNB传输该分裂承载。
在S302中，UE会通过MCG MAC实体向MeNB发送BSR，该BSR中均可以包括该分裂承载的缓存状态信息，该缓存状态信息可以为该分裂承载的数据量，可以简称BS值。
在S303中，UE会通过SCG MAC实体向SeNB发送BSR，该BSR中均可以包括该分裂承载的缓存状态信息，该缓存状态信息可以为该分裂承载的数据量，可以简称BS值。
在S304中，UE可以检测MeNB发送的PDCCH信道，由MCG MAC实体接收MeNB发送的资源分配信息(UL grant信息)。该资源分配信息中包括了MeNB分配给该UE由于传输数据的资源。
在S305中，UE可以检测SeNB发送的PDCCH信道，由SCG MAC实体接收SeNB发送的资源分配信息(UL grant信息)。该资源分配信息中包括了MeNB分配给该UE由于传输数据的资源。
在S306中，由于分裂承载的数据量大于预设值，UE确定MAC实体已经向MeNB和SeNB分别发送了包括该分裂承载的缓存状态信息值的BSR，MCG MAC实体和SCG MAC实体分别执行各自的LCP过程，并根据LCP的执行情况确定能够分配给分裂承载的传输资源，然后MCG MAC实体和SCG MAC实体根据能够分配给分裂承载的资源，向PDCP层发送数据传输的指示信息，该数据传输指示信息用于指示该PDCP层向MCG MAC实体和SCG MAC实体发送分裂承载的数据或指示该分裂承载的传输资源。进一步地，该数据传输指示信息可以具体指示PDCP层应该向低层递交多少数据。
具体地，MCG MAC实体和SCG MAC实体分别执行LCP过程，可以 在分别执行LCP过程的每个步骤时，根据在该步骤中可以分配给分裂承载的传输资源确定可以发送的分裂承载的数据量，然后向PDCP层发送数据传输指示信息。或者，也可以是在MCG MAC实体和SCG MAC实体在相应的LCP过程的全部步骤都执行完毕后，根据总的可以分配给分裂承载的资源确定可以发送的分裂承载的数据量，然后向PDCP层发送数据传输指示信息。
在S307中，UE根据UL grant信息向MeNB发送分裂承载的数据。
在S308中，UE根据UL grant信息向SeNB发送分裂承载的数据。
可选地，在本发明实施例中，由于分裂承载的数据量大于预设值，则UE可以在确定分裂承载的数据量大于预设值后直接执行S304和S308，而不需要再次判断是否向MeNB以及SeNB发送了包括分裂承载的缓冲状态信息的BSR。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
因此，本发明实施例的上行数据传输的方法，MAC实体收到相应的基站发送的资源分配信息后，在分裂承载的数据量大于预设值，或分裂承载的数据量小于预设值且已经向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，才为该分裂承载分配资源，并且由MAC实体向PDCP层发送数据传输指示信息，以便于PDCP层传输分裂承载的数据，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
图6示出了根据本发明再一实施例的上行数据传输的方法400的示意性流程图，该方法400可以由用户设备UE执行，该方法可以用于双连接系统中，该双连接系统包括两个基站，第一基站和第二基站，用户设备的第一MAC实体与第一基站相对应，用户设备的第二MAC实体与第二基站相对应。如图6所示，该方法400包括：
S410，该用户设备获取该第一基站发送的资源分配信息；
S420，当该用户设备确定分裂承载的数据量小于或等于预设值且该用户设备的第一MAC实体不是配置的当分裂承载的数据量小于或等于预设值时传输该分裂承载的数据的MAC实体时，或者，该用户设备确定该第一MAC实体没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状 态报告BSR时，该第一MAC实体不为该分裂承载分配传输资源，和/或不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
因此，本发明实施例的上行数据传输的方法，用户设备的MAC实体收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
应理解，在双连接系统中，一个用户设备(UE)会配置两个小区组：主小区组(MCG)和辅小区组(SCG)。MCG是指与主基站MeNB相关联的一个小区组，SCG是指与次基站SeNB相关联的一个小区组。本发明实施例中的第一基站可以为主基站，则第二基站为次基站；或者第一基站为次基站，则第二基站为主基站。当第一基站为主基站、第二基站为次基站时，则第一MAC实体为UE中与主基站或主小区组相对应的MCG MAC实体，第二MAC实体为UE中与次基站或辅小区组相对应的SCG MAC实体；当第一基站为次基站、第二基站为主基站时，则第二MAC实体为UE中与主基站或主小区组相对应的MCG MAC实体，第一MAC实体为UE中与次基站或辅小区组相对应的SCG MAC实体。因此，本发明实施例中的第一基站为主基站或次基站都可以，本发明并不限于此。
在S410中，该第一MAC实体获取该第一基站发送的资源分配信息，可选地，可以通过PDCCH获取该资源分配信息，该资源分配信息包括为用户设备分配的资源。具体地，主基站对应的MCG MAC实体接收到主基站发送的资源分配信息，或者次基站对应的SCG MAC实体接收到次基站发送的资源分配信息，或者MCG MAC实体和SCG MAC实体均接收到对应的基站发送的资源分配信息，本发明并不限于此。
在S420中，当确定该第一MAC实体没有向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或者当该分裂承载的数据量小于或等于预设值且该第一MAC实体不是传输该分裂承载的数据的MAC实体时，该第一MAC实体不为该分裂承载分配资源，和/或，不 向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。可选地，当该用户设备确定分裂承载的数据量小于或等于预设值且该用户设备没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，该第一MAC实体同样不为该分裂承载分配传输资源，和/或不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
在本发明实施例中，该预设值可以根据实际情况进行设定。该预设值可以由主基站确定后，将该预设值向用户设备发送，该用户设备保存该预设值；可选地，该预设值还可以在用户设备中预先配置，本发明并不限于此。
在本发明实施例中，当第一MAC实体确定不为该分裂承载分配资源，和/或，不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息后，该第一MAC实体可以将接收到的资源分配给第二承载，该第二承载为除了该分裂承载之外的其它承载。
可选地，该第二承载可以为非分裂承载，则第一MAC实体可以根据接收到的资源分配信息，将资源分配给该第二承载。
可选地，该第二承载也可以为其它分裂承载，该其它分裂承载是指除了已经判断过的不能分配该资源的分裂承载之外的其它分裂承载。则第一MAC实体需要再次判断是否可以为该第二承载分配资源。当该第二承载小于或等于预设值且第一MAC实体已经向第一基站发送过包括该第二承载的数据缓存状态报告的BSR时，或者当该第二承载大于预设值时，则第一MAC实体可以为该第二承载分配资源，否则仍然不能为该第二承载分配资源。
可选地，在本发明实施例中，该预设值可以根据实际情况进行设定。该预设值可以由主基站确定后，将该预设值向用户设备发送，该用户设备保存该预设值；可选地，该预设值还可以在用户设备中预先配置，本发明并不限于此。
在本发明实施例中，若第一MAC实体确定不为该分裂承载分配资源，和/或不向PDCP层发送数据传输指示信息，则可以确定该分裂承载向第一基站的传输处于挂起状态。直到该第一MAC实体可以为该分裂承载分配资源，和/或可以向PDCP层发送数据传输指示信息时，确定恢复该分裂承载的传输。可选地，在该用户设备内部可以通过下列方式之一来实现分裂承载的挂起状态。
可选地，作为一个实施例，该用户设备的第一MAC实体首先确定该分裂承载向第一基站的传输处于挂起状态，然后向该用户设备的无线资源控制(Radio Resource Control，简称“RRC”)实体指示该分裂承载处于挂起状态。
可选地，作为一个实施例，用户设备的RRC实体首先确定该分裂承载向第一基站的传输处于挂起状态，然后向该用户设备的第一MAC实体发送该分裂承载处于挂起状态的指示，以使得该第一MAC实体确定该分裂承载向第一基站的传输处于挂起状态。
可选地，作为一个实施例，用户设备的PDCP实体首先确定该分裂承载向第一基站的传输处于挂起状态，然后向该用户设备的第一MAC实体发送该分裂承载处于挂起状态，以使得该第一MAC实体确定该分裂承载向第一基站的传输处于挂起状态。
可选地，作为一个实施例，用户设备的PDCP实体首先确定该分裂承载向第一基站的传输处于挂起状态，然后向该用户设备的RRC实体发送该分裂承载处于挂起状态，然后该RRC实体向该第一MAC实体发送该分裂承载处于挂起状态的指示，以使得该第一MAC实体确定该分裂承载向第一基站的传输处于挂起状态。
在本发明实施例中，当分裂承载的数据量小于或等于预设值且第一MAC实体已经向第一基站发送包括该分裂承载的数据缓存状态信息的BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体可以确定恢复该分裂承载的传输，并为该分裂承载分配资源。可选地，可以先恢复该分裂承载的传输，再为该分裂承载分配资源；也可以为该分裂承载分配资源，再恢复该分裂承载的传输，本发明并不限于此。
在本发明实施例中，若第一MAC实体确定不为该分裂承载分配资源，和/或不向PDCP层发送数据传输指示信息，则第一MAC实体可以将该分裂承载的逻辑信道的状态变量Bj设置为零，并且停止累加。直到该第一MAC实体可以为该分裂承载分配资源，和/或可以向PDCP层发送数据传输指示信息时，重新启动该状态变量Bj的累加。
可选地，若第一MAC实体确定不为该分裂承载分配资源，和/或不向PDCP层发送数据传输指示信息，此时该分裂承载的逻辑信道的状态变量Bj可能大于零，也可能小于零，即不论该分裂承载的逻辑信道的状态变量Bj大于零还是小于零，均可以在该第一MAC实体没有向该第一基站发送包括 该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或者在该分裂承载的数据量小于或等于预设值且该第一MAC实体不是传输该分裂承载的数据的MAC实体时，确定不为该分裂承载分配资源，和/或不向PDCP层发送数据传输指示信息。
具体地，当分裂承载的数据量小于或等于预设值且第一MAC实体已经向第一基站发送包括该分裂承载的数据缓存状态信息的BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体可以重新启动该状态变量Bj的累加，并为该分裂承载分配资源。可选地，可以先重新启动该状态变量Bj的累加，再为该分裂承载分配资源；也可以为该分裂承载分配资源，再重新启动该状态变量Bj的累加，本发明并不限于此。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
因此，本发明实施例的上行数据传输的方法，用户设备MAC实体收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
上文中结合图2至图6，详细描述了根据本发明实施例的上行数据传输的方法，下面将结合图7和图8，描述根据本发明实施例的上行数据传输的用户设备。
图7示出了根据本发明实施例的上行数据传输的用户设备500，该用户设备可以位于双连接系统中，该双连接系统包括两个基站，第一基站和第二基站，用户设备的第一MAC实体与第一基站相对应，用户设备的第二MAC实体与第二基站相对应。如图8所示，该用户设备500包括：获取模块510、处理模块520和发送模块530，
该获取模块510用于：获取该第一基站发送的资源分配信息；
该处理模块520用于：当该用户设备确定分裂承载的数据量小于或等于预设值且该发送模块已经向该第一基站发送包括该分裂承载的数据缓存状 态信息的第一缓存状态报告BSR时，或当该用户设备确定该分裂承载的数据量大于该预设值时，该第一MAC实体根据该资源分配信息，为该分裂承载分配传输资源，和/或，该第一MAC实体通过该发送模块530向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或数据传输指示信息指示分配给该分裂承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该用户设备的MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
可选地，作为一个实施例，该用户设备位于双连接系统中，该用户设备包括第一MAC实体和第二MAC实体，该第一MAC实体和第二MAC实体分别用于与该双连接系统中的第一基站和第二基站相通信。
可选地，作为一个实施例，该处理模块520具体用于：当确定该分裂承载的数据量大于该预设值且该用户设备已经向该第一基站发送第二BSR时，该第一MAC实体通过该处理模块520根据该资源分配信息，向该分裂承载分配传输资源，和/或，通过该发送模块向该PDCP层发送该数据传输指示信息，该第二BSR包括该分裂承载的数据缓存状态信息。
可选地，作为一个实施例，该处理模块520具体用于：当确定该分裂承载的数据量小于或等于该预设值且该第一MAC实体为传输该分裂承载的数据的MAC实体时，该第一MAC实体通过该处理模块520根据该资源分配信息，向该分裂承载分配传输资源，和/或，该发送模块向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该处理模块520具体用于：当确定该分裂承载的数据量小于或等于该预设值且该发送模块没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，不为该分裂承载分配传输资源，和/或，不向该PDCP层发送该分裂承载的数据传输指示信息。
可选地，作为一个实施例，该处理模块520具体用于：当确定该分裂承载的数据量小于或等于该预设值且该发送模块没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，不为该分裂承载分配传输资源，和/或该用户设备的该第一MAC实体不向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该发送模块530具体用于：通过无线链路控制RLC层向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该处理模块520具体用于：当该分裂承载向该第一基站的传输处于挂起状态时，确定恢复该分裂承载的传输，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该处理模块520具体用于：重新启动该分裂承载的逻辑信道的状态变量Bj的累加，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
可选地，作为一个实施例，该预设值为该主基站向该用户设备发送的。
可选地，作为一个实施例，该资源分配信息为上行授予UL grant信息。
可选地，作为一个实施例，该获取模块510具体用于：通过物理下行控制信道PDCCH信道，获取该资源分配信息。
可选地，作为一个实施例，该处理模块520具体用于：在逻辑信道优先级LCP过程中，该第一MAC实体通过该处理模块520为该分裂承载分配传输资源；该发送模块530根据为该分裂承载分配的传输资源，向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
应理解，根据本发明实施例的上行数据传输的用户设备500可对应于执行本发明实施例中的方法100，并且用户设备500中的各个模块的上述和其它操作和/或功能分别为了实现图3中的各个方法的相应流程，为了简洁，在此不再赘述。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓 存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
图8示出了根据本发明实施例的上行数据传输的用户设备600，该用户设备600可以位于双连接系统中，该双连接系统包括两个基站，第一基站和第二基站，用户设备的第一MAC实体与第一基站相对应，用户设备的第二MAC实体与第二基站相对应。如图8所示，该用户设备包括：
获取模块610，用于获取该第一基站发送的资源分配信息；
处理模块620，用于当确定分裂承载的数据量小于或等于预设值且该用户设备的第一MAC实体不是配置的当分裂承载的数据量小于或等于预设值时传输该分裂承载的数据的MAC实体时，或者，该第一MAC实体没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，不为该分裂承载分配传输资源，和/或，不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
可选地，作为一个实施例，该用户设备位于双连接系统中，该用户设备包括第一MAC实体和第二MAC实体，该第一MAC实体和第二MAC实体分别用于与该双连接系统中的第一基站和第二基站相通信。
可选地，作为一个实施例，该处理模块620具体用于：当确定该分裂承载的数据量小于或等于该预设值且没有向该第一基站发送包括该分裂承载的数据缓存状态信息的该第一BSR时，不为该分裂承载分配传输资源，和/或，不向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该用户设备还可以包括发送模块，该处理模 块620具体用于：当确定该分裂承载的数据量小于或等于该预设值且已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当确定该分裂承载的数据量大于该预设值时，该第一MAC实体通过该处理模块620根据该资源分配信息，为该分裂承载分配传输资源，和/或，该用户设备的第一MAC实体通过发送模块向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，该数据传输指示信息指示该PDCP层向该第一MAC实体发送该分裂承载的数据，或该数据传输指示信息指示分配给该分裂承载的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
可选地，作为一个实施例，该处理模块620具体用于：当确定该分裂承载的数据量小于或等于该预设值且该第一MAC实体为传输该分裂承载的数据的MAC实体时，该第一MAC实体通过该处理模块620根据该资源分配信息，向该分裂承载分配传输资源，和/或，该第一MAC实体向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该处理模块620具体用于：当该分裂承载的逻辑信道的状态变量Bj的值大于零时，不为该分裂承载分配传输资源。
可选地，作为一个实施例，该处理模块620具体用于：确定该分裂承载向该第一基站的传输处于挂起状态。
可选地，作为一个实施例，该处理模块620具体用于：当该分裂承载的数据量小于或等于预设值且该第一MAC实体已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体通过该处理模块620确定恢复该分裂承载向该第一基站的传输，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该处理模块620具体用于：将该分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止该状态变量Bj的累加。
可选地，作为一个实施例，该处理模块620具体用于：当该分裂承载的数据量小于或等于预设值且该第一MAC实体已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当该分裂承载的数据量大于该预设值时，该第一MAC实体通过该处理模块620重新启动该状态变量Bj的累加，并为该分裂承载分配传输资源。
可选地，作为一个实施例，第一基站为主基站，该第二基站为次基站； 或该第一基站为次基站，该第二基站为主基站。
可选地，作为一个实施例，该预设值为该主基站向该用户设备发送的。
可选地，作为一个实施例，该资源分配信息为上行授予UL grant信息。
可选地，作为一个实施例，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
应理解，根据本发明实施例的上行数据传输的用户设备600可对应于执行本发明实施例中的方法200，并且用户设备600中的各个模块的上述和其它操作和/或功能分别为了实现图6中的各个方法的相应流程，为了简洁，在此不再赘述。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该用户设备的MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
如图9所示，本发明实施例还提供了一种上行数据传输的用户设备800，用户设备800包括处理器810、存储器820、收发器830和总线系统840。其中，处理器810、存储器820和收发器830通过总线系统840相连，该存储器820用于存储指令，该处理器810用于执行该存储器820存储的指令，以控制收发器830收发信号。其中，该收发器830用于：获取该第一基站发送的资源分配信息；该处理器810用于：当确定分裂承载的数据量小于或等于预设值且该收发器已经向该第一基站发送包括该分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当确定该分裂承载的数据量大于该预设值时，根据该资源分配信息，为该分裂承载分配传输资源，和/或，通过该收发器向该用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，其中，该数据传输指示信息指示该PDCP层向该用户设备的第一MAC实体发送该分裂承载的数据，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输资源，或该数据传输指示信息指示该第一MAC实体为该分裂承载分配的传输机会。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
应理解，在本发明实施例中，该处理器810可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器810还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器820可以包括只读存储器和随机存取存储器，并向处理器810提供指令和数据。存储器820的一部分还可以包括非易失性随机存取存储器。例如，存储器820还可以存储设备类型的信息。
该总线系统840除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统840。
在实现过程中，上述方法的各步骤可以通过处理器810中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器820，处理器810读取存储器820中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
可选地，作为一个实施例，该处理器810具体用于：当确定该分裂承载的数据量大于该预设值且该收发已经向该第一基站发送第二BSR时，根据该资源分配信息，为该分裂承载分配传输资源，和/或，通过该收发器向该PDCP层发送该数据传输指示信息，该第二BSR包括该分裂承载的数据缓存状态信息。
可选地，作为一个实施例，该处理器810具体用于：当该分裂承载向该 第一基站的传输处于挂起状态时，确定恢复该分裂承载的传输，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该处理器810具体用于：重新启动该分裂承载的逻辑信道的状态变量Bj的累加，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
可选地，作为一个实施例，该预设值为该主基站向该用户设备发送的。
结合第五方面及其上述实现方式，在第五方面的另一种实现方式中，该资源分配信息为上行授予UL grant信息。
可选地，作为一个实施例，该处理器810具体用于：在逻辑信道优先级LCP过程中，为该分裂承载分配传输资源；根据为该分裂承载分配的传输资源，通过该收发器向该PDCP层发送该数据传输指示信息。
可选地，作为一个实施例，该第一MAC实体为该分裂承载分配的传输资源表示为该分裂承载分配的物理资源量，该第一MAC实体为该分裂承载分配的传输机会表示为该分裂承载分配的能够传输的数据量。
应理解，根据本发明实施例的用户设备800可对应于本发明实施例中的用户设备600，并可以对应于执行根据本发明实施例的方法100中的相应主体，并且用户设备800中的各个模块的上述和其它操作和/或功能分别为了实现图2中的各个方法的相应流程，为了简洁，在此不再赘述。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
如图10所示，本发明实施例还提供了一种上行数据传输的用户设备900，用户设备900包括处理器910、存储器920、收发器930和总线系统940。其中，处理器910和存储器920通过总线系统930相连，该存储器920用于存储指令，该处理器910用于执行该存储器920存储的指令，以控制收发器930收发信号。其中，该收发器930用于：获取该第一基站发送的资源分配 信息；该处理器910用于：当确定分裂承载的数据量小于或等于预设值且该收发器没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，确定不为该分裂承载分配传输资源，和/或不向该用户设备的分组数据汇聚协议PDCP层发送该分裂承载的数据传输指示信息。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
应理解，在本发明实施例中，该处理器910可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器910还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器920可以包括只读存储器和随机存取存储器，并向处理器910提供指令和数据。存储器920的一部分还可以包括非易失性随机存取存储器。例如，存储器920还可以存储设备类型的信息。
该总线系统940除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线系统940。
在实现过程中，上述方法的各步骤可以通过处理器910中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器920，处理器910读取存储器920中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
可选地，作为一个实施例，该处理器910还用于：当该分裂承载的逻辑信道的状态变量Bj的值大于零时，确定不为该分裂承载分配传输资源。
可选地，作为一个实施例，该处理器910还用于：确定该分裂承载向该第一基站的传输处于挂起状态。
可选地，作为一个实施例，该处理器910还用于：当确定该分裂承载的数据量小于或等于该预设值且该收发器已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当确定该分裂承载的数据量大于该预设值时，确定恢复该分裂承载向该第一基站的传输，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该处理器910还用于：将该分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止该状态变量Bj的累加。
可选地，作为一个实施例，该处理器910还用于：当确定该分裂承载的数据量小于或等于该预设值且该收发器已经向该第一基站发送包括该分裂承载的数据缓存状态信息的该BSR时，或当确定该分裂承载的数据量大于该预设值时，重新启动该状态变量Bj的累加，并为该分裂承载分配传输资源。
可选地，作为一个实施例，该第一基站为主基站，该第二基站为次基站；或该第一基站为次基站，该第二基站为主基站。
可选地，作为一个实施例，该预设值为该主基站向该用户设备发送的。
可选地，作为一个实施例，该资源分配信息为上行授予UL grant信息。
应理解，根据本发明实施例的用户设备900可对应于本发明实施例中的用户设备600，并可以对应于执行根据本发明实施例的方法400中的相应主体，并且用户设备900中的各个模块的上述和其它操作和/或功能分别为了实现图5中的各个方法的相应流程，为了简洁，在此不再赘述。
因此，本发明实施例的上行数据传输的用户设备，在收到相应的基站发送的资源分配信息后，若该MAC实体没有向该基站发送了包括分裂承载缓存状态信息的缓存状态报告时，或分裂承载的数据量小于预设值且该MAC实体不是预先配置的执行分裂承载传输的MAC实体时，不为该分裂承载分配资源，也不向PDCP层发送分裂承载的数据传输指示信息，从而能够避免分裂承载抢占资源导致资源浪费及影响其他业务传输质量，保证了不同业务的公平性，由此能够提高资源使用效率。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结 合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易 想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。

Claims (19)

  1. 一种上行数据传输的方法，其特征在于，所述方法应用于双连接系统中的用户设备，所述用户设备包括第一MAC实体和第二MAC实体，所述第一MAC实体和第二MAC实体分别用于与所述双连接系统中的第一基站和第二基站相通信，所述方法包括：
    所述用户设备获取所述第一基站发送的资源分配信息；
    当所述用户设备确定分裂承载的数据量小于或等于预设值且所述用户设备已经向所述第一基站发送包括所述分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当所述用户设备确定所述分裂承载的数据量大于所述预设值时，
    所述用户设备的所述第一MAC实体根据所述资源分配信息，为所述分裂承载分配传输资源，和/或，所述第一MAC实体向所述用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，
    其中，所述数据传输指示信息指示所述PDCP层向所述第一MAC实体发送所述分裂承载的数据，或所述数据传输指示信息指示所述第一MAC实体为所述分裂承载分配的传输资源，或所述数据传输指示信息指示所述第一MAC实体为所述分裂承载分配的传输机会。
  2. 根据权利要求1所述的方法，其特征在于，当所述用户设备确定所述分裂承载的数据量大于所述预设值时，所述用户设备的第一MAC实体根据所述资源分配信息，为所述分裂承载分配传输资源，和/或，所述第一MAC实体向所述用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，包括：
    当所述用户设备确定所述分裂承载的数据量大于所述预设值且所述用户设备已经向所述第一基站发送第二BSR时，所述第一MAC实体根据所述资源分配信息，为所述分裂承载分配传输资源，和/或，所述第一MAC实体向所述PDCP层发送所述数据传输指示信息，所述第二BSR包括所述分裂承载的数据缓存状态信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一MAC实体为所述分裂承载分配传输资源，包括：
    当所述分裂承载向所述第一基站的传输处于挂起状态时，所述第一 MAC实体确定恢复所述分裂承载的传输，并为所述分裂承载分配传输资源。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述用户设备为所述分裂承载分配传输资源，包括：
    所述第一MAC实体重新启动所述分裂承载的逻辑信道的状态变量Bj的累加，并为所述分裂承载分配传输资源。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，
    所述第一基站为主基站，所述第二基站为次基站；或
    所述第一基站为次基站，所述第二基站为主基站。
  6. 根据权利要求5所述的方法，其特征在于，所述预设值为所述主基站向所述用户设备发送的。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述资源分配信息为上行授予UL grant信息。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述用户设备的第一MAC实体根据所述资源分配信息，为所述分裂承载分配传输资源，和/或，所述第一MAC实体向所述用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，包括：
    在逻辑信道优先级LCP过程中，所述的第一MAC实体为所述分裂承载分配传输资源；
    所述第一MAC实体根据为所述分裂承载分配的传输资源，向所述PDCP层发送所述数据传输指示信息。
  9. 一种上行数据传输的方法，其特征在于，所述方法应用于双连接系统中的用户设备，所述用户设备包括第一MAC实体和第二MAC实体，所述第一MAC实体和第二MAC实体分别用于与所述双连接系统中的第一基站和第二基站相通信，所述方法包括：
    所述用户设备获取所述第一基站发送的资源分配信息；
    当所述用户设备确定分裂承载的数据量小于或等于预设值且所述用户设备的第一MAC实体不是配置的当分裂承载的数据量小于或等于预设值时传输所述分裂承载的数据的MAC实体时，或者，所述用户设备确定所述第一MAC实体没有向所述第一基站发送包括所述分裂承载的数据缓存状态信息的缓存状态报告BSR时，
    所述第一MAC实体不为所述分裂承载分配传输资源，和/或不向所述用 户设备的分组数据汇聚协议PDCP层发送所述分裂承载的数据传输指示信息。
  10. 根据权利要求9所述的方法，其特征在于，所述第一MAC实体不为所述分裂承载分配传输资源，包括：
    当所述分裂承载的逻辑信道的状态变量Bj的值大于零时，所述第一MAC实体不为所述分裂承载分配传输资源。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第一MAC实体不为所述分裂承载分配传输资源，包括：
    所述第一MAC实体确定所述分裂承载向所述第一基站的传输处于挂起状态。
  12. 根据权利要求9至11中任一项所述的方法，其特征在于，所述方法还包括：
    当所述用户设备确定所述分裂承载的数据量小于或等于所述预设值且所述用户设备已经向所述第一基站发送包括所述分裂承载的数据缓存状态信息的所述BSR时，或当所述用户设备确定所述分裂承载的数据量大于所述预设值时，所述第一MAC实体确定恢复所述分裂承载向所述第一基站的传输，并为所述分裂承载分配传输资源。
  13. 根据权利要求9至12中任一项所述的方法，其特征在于，所述第一MAC实体不为所述分裂承载分配传输资源，包括：
    所述第一MAC实体将所述分裂承载的逻辑信道的状态变量Bj设置为零，和/或停止所述状态变量Bj的累加。
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：
    当所述用户设备确定所述分裂承载的数据量小于或等于所述预设值且所述用户设备已经向所述第一基站发送包括所述分裂承载的数据缓存状态信息的所述BSR时，或当所述用户设备确定所述分裂承载的数据量大于所述预设值时，所述第一MAC实体重新启动所述状态变量Bj的累加，并为所述分裂承载分配传输资源。
  15. 根据权利要求9至14中任一项所述的方法，其特征在于，
    所述第一基站为主基站，所述第二基站为次基站；或
    所述第一基站为次基站，所述第二基站为主基站。
  16. 根据权利要求15所述的方法，其特征在于，所述预设值为所述主 基站向所述用户设备发送的。
  17. 根据权利要求9至16中任一项所述的方法，其特征在于，所述资源分配信息为上行授予UL grant信息。
  18. 一种上行数据传输的用户设备，其特征在于，所述用户设备包括存储器、处理器和收发器，
    所述存储器用于存储指令，
    所述收发器用于：获取所述第一基站发送的资源分配信息；
    所述处理器用于：当确定分裂承载的数据量小于或等于预设值且所述收发器已经向所述第一基站发送包括所述分裂承载的数据缓存状态信息的第一缓存状态报告BSR时，或当确定所述分裂承载的数据量大于所述预设值时，
    根据所述资源分配信息，为所述分裂承载分配传输资源，和/或，通过所述收发器向所述用户设备的分组数据汇聚协议PDCP层发送数据传输指示信息，
    其中，所述数据传输指示信息指示所述PDCP层向所述用户设备的第一MAC实体发送所述分裂承载的数据，或所述数据传输指示信息指示所述第一MAC实体为所述分裂承载分配的传输资源，或所述数据传输指示信息指示所述第一MAC实体为所述分裂承载分配的传输机会。
  19. 一种上行数据传输的用户设备，其特征在于，所述用户设备包括存储器、处理器和收发器，
    所述存储器用于存储指令，
    所述收发器用于：获取所述第一基站发送的资源分配信息；
    所述处理器用于：当确定分裂承载的数据量小于或等于预设值且所述收发器没有向所述第一基站发送包括所述分裂承载的数据缓存状态信息的缓存状态报告BSR时，或者，当确定该收发器没有向该第一基站发送包括该分裂承载的数据缓存状态信息的缓存状态报告BSR时，
    确定不为所述分裂承载分配传输资源，和/或不向所述用户设备的分组数据汇聚协议PDCP层发送所述分裂承载的数据传输指示信息。
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