WO2020063444A1 - 数据传输方法及通信设备 - Google Patents

数据传输方法及通信设备 Download PDF

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Publication number
WO2020063444A1
WO2020063444A1 PCT/CN2019/106678 CN2019106678W WO2020063444A1 WO 2020063444 A1 WO2020063444 A1 WO 2020063444A1 CN 2019106678 W CN2019106678 W CN 2019106678W WO 2020063444 A1 WO2020063444 A1 WO 2020063444A1
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Prior art keywords
rrc
layer entity
protocol layer
new protocol
terminal
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PCT/CN2019/106678
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English (en)
French (fr)
Inventor
梁敬
马玥
吴昱民
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维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2021517645A priority Critical patent/JP7297058B2/ja
Priority to KR1020217012462A priority patent/KR20210063416A/ko
Priority to SG11202103179SA priority patent/SG11202103179SA/en
Priority to EP19865666.2A priority patent/EP3860291A4/en
Publication of WO2020063444A1 publication Critical patent/WO2020063444A1/zh
Priority to US17/214,336 priority patent/US11876746B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a data transmission method and a communication device.
  • the air interface capabilities of terminals such as user equipment (UE) are controlled through radio resource control (Radio Resource Control). , RRC) layer.
  • RRC Radio Resource Control
  • MIMO Multiple-Input Multiple-Output
  • RF Radio Frequency
  • the UE Capability reporting may take up a lot of space. For example, a 5G air interface capability report of a UE may reach the maximum value of 1G byte.
  • the new wireless (New Radio, NR) system has measurement configuration information related to Channel State Information Reference Signal (CSI-RS) and random access channel (Random Access Channel, RACH) configuration information.
  • CSI-RS Channel State Information Reference Signal
  • RACH Random Access Channel
  • the processing mechanism of the RRC layer entity is that the generated RRC message is directly used as the RRC protocol data unit (PDU), that is, the Packet Data Convergence Protocol (PDCP) service data unit (Service Data Unit).
  • PDU RRC protocol data unit
  • PDCP Packet Data Convergence Protocol
  • Service Data Unit Service Data Unit
  • SDU is sent to the PDCP layer entity.
  • the maximum value of the PDCP SDU size is, for example, 8188 bytes in a 4G (4-th Generation) system and 9000 bytes in a 5G system.
  • the embodiments of the present disclosure provide a data transmission method and a communication device to solve the existing problems that when the RRC message is too large, it will exceed the limit of the PDCP and SDU and cause an excessive demand for the RRC buffer.
  • an embodiment of the present disclosure provides a data transmission method, which is applied to a sender of a communication device, where the sender of the communication device is one of a terminal and a network device, and the method includes:
  • each of the plurality of RRC segments is an RRC segment Carry part of the data content in the RRC message generated by the sender of the communication device;
  • an embodiment of the present disclosure provides a data transmission method, which is applied to a communication device receiver.
  • the communication device receiver is one of a terminal and a network device.
  • the method includes:
  • each RRC segment in the multiple RRC segments carries a part of data content in an RRC message generated by the communication device sender;
  • the multiple RRC segments are reorganized to obtain a complete RRC message.
  • an embodiment of the present disclosure provides a communication device, wherein the communication device is a sender, the communication device is one of a terminal and a network device, and the communication device includes:
  • a generating module configured to generate multiple RRC segments by using an RRC segment function of an RRC layer entity of the communication device or an RRC segment function of a new protocol layer entity; wherein each of the multiple RRC segments The RRC segment carries part of the data content in the RRC message generated by the communication device;
  • a first sending module configured to send the multiple RRC segments to a communication device receiver.
  • an embodiment of the present disclosure provides a communication device, wherein the communication device is a receiver, the communication device is one of a terminal and a network device, and the communication device includes:
  • a fourth receiving module configured to receive multiple RRC segments from a communication device sender; wherein each RRC segment in the multiple RRC segments carries a part of an RRC message generated by the communication device sender Data content
  • the recombination module is configured to use the RRC reorganization function of the RRC layer entity of the communication device or the RRC reorganization function of the new protocol layer entity to reorganize the plurality of RRC segments to obtain a complete RRC message.
  • an embodiment of the present disclosure provides a communication device including a memory, a processor, and a program stored on the memory and executable on the processor, wherein the program is executed by the processor
  • the communication device may be a sender, a receiver, a terminal, or a network device.
  • an embodiment of the present disclosure provides a computer-readable storage medium on which a program is stored, wherein the program can implement the steps of the foregoing data transmission method when the program is executed by a processor.
  • each of the multiple RRC segments carries a part of data content in an RRC message generated by a sender of a communication device. All the data content in the RRC message is carried by the multiple RRC segments.
  • Sending the multiple RRC segments to the receiver of the communication device can segment the RRC message, so that when the RRC message is too large, the Equipped with PDCP and SDU, reducing the need for RRC buffers, completing the transmission of RRC messages, and ensuring that the corresponding communication process proceeds smoothly.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 4 is a second schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the RRC segmentation function It can be carried by the RRC layer entity, or it can be carried by the new protocol layer entity. In this way, through the introduced RRC segmentation function, an excessively large RRC message can be segmented to obtain multiple RRC segments.
  • the multiple RRC segments can carry all the data content in the corresponding RRC message.
  • Each RRC segment in the segment can carry part of the data content in the corresponding RRC message, and each RRC segment is delivered as a PDCP SDU to the PDCP layer entity, so that when the RRC message is too large, it can adapt to PDCP and SDU , Reduce the demand for RRC buffers, complete the transmission of RRC messages, and ensure that the corresponding communication process proceeds smoothly.
  • the corresponding transmission process can be: from the sender RRC layer entity, sender PDCP layer entity, sender RLC layer entity, sender MAC Layer entity, sender PHY layer entity, receiver (ie communication device receiver) PHY layer entity, receiver MAC layer entity, receiver RLC layer entity, receiver PDCP layer entity to receiver RRC layer entity.
  • the RRC segment generated by the RRC segment function can exist in the form of RRC PDU for the sender, and can be received as PDCP SDU for the receiver, that is, RRC PDU can be equivalent to PDCP SDU.
  • a terminal may adopt a dual connectivity (DC) architecture, and correspondingly includes two cell groups, namely a primary cell group (MCG) and a secondary cell group (SCG).
  • the MCG corresponds to a master node (MN) on the network side
  • the SCG corresponds to a secondary node (SN) on the network side.
  • the MCG may include a primary cell PCell and a secondary cell SCell
  • the SCG may include a primary and secondary cell PSCell and a secondary cell SCell.
  • PCell and PSCell can be collectively called SpCell.
  • the bearer types can include Signaling Radio Bearers (SRB) and Data Radio Bearers (DRB), while MCG SRB (or DRB) only sends and receives data through MCG, and SCG SRB (or DRB) only uses SCG Send and receive data.
  • SRB Signaling Radio Bearers
  • DRB Data Radio Bearers
  • an LTE cell can be used as an MCG cell
  • an NR (New RAT, New Air Interface, 5G) cell can be used as an SCG cell.
  • the core network to which the terminal is connected is an LTE core network such as an Evolved Packet Core (EPC).
  • EPC Evolved Packet Core
  • the PDCP layer entity corresponding to the MCG can adopt the NR configuration (that is, the PDCP layer entity configured as the NR), while other configurations under the MCG, including the configuration of the RLC layer entity and the MAC layer entity, still use the LTE configuration. .
  • an embodiment of the present disclosure provides a data transmission method, which is applied to a sender of a communication device.
  • the sender of the communication device may be any one of a terminal and a network device.
  • the method includes the following steps: 101 and 102.
  • Step 101 Use the RRC segment function of the RRC layer entity of the sender of the communication device or the RRC segment function of the new protocol layer entity to generate multiple RRC segments.
  • the RRC segment may exist in the form of an RRC PDU.
  • Each RRC segment in the foregoing multiple RRC segments carries part of the data content in the RRC message generated by the sender of the communication device. All data content in the RRC message can be carried by multiple RRC segments.
  • the foregoing generation of multiple RRC segments can be understood as using the RRC segment entity of the sender of the communication device or the RRC segment entity of the new protocol layer entity to segment the generated RRC message to obtain multiple RRC segments. That is, the RRC segmentation function can be used to divide the generated RRC message into multiple RRC messages for transmission.
  • the sender of the communication device is a terminal, and the receiver of the communication device is a network device; and corresponding to the downlink data transmission process, the sender of the communication device is a network device and the communication device The receiver is the terminal.
  • UE1 can use the RRC segmentation function of the RRC layer entity (or the new protocol layer entity) to divide the RRC message. Segment processing is RRC PDU1 (such as occupying 7000byte) and RRC PDU2 (such as occupying 8000byte), or segment processing is RRC PDU1 (such as occupying 4000byte), RRC PDU2 (such as occupying 4000byte), and RRC PDU3 (such as occupying 6000byte), as appropriate. Configure PDCP and SDU to complete the transmission of RRC messages.
  • RRC PDU1 such as occupying 7000byte
  • RRC PDU2 such as occupying 8000byte
  • RRC PDU1 such as occupying 4000byte
  • RRC PDU2 such as occupying 4000byte
  • RRC PDU3 such as occupying 6000byte
  • Step 102 Send multiple RRC segments to the receiver of the communication device.
  • the multiple RRC segments can be reorganized to obtain a complete RRC message.
  • the data transmission method in the embodiment of the present disclosure generates multiple RRC segments by using an RRC segment function, and each RRC segment in the multiple RRC segments carries a part of data content in an RRC message generated by a sender of a communication device.
  • the RRC message can be segmented, so that when the RRC message is too large, it can adapt to the PDCP SDU, reduce the demand for the RRC buffer, and complete the RRC message. Transmission to ensure the corresponding communication process smoothly.
  • the packet information of the RRC segments may include reorganization instruction information, and the reorganization instruction information is used by a communication device receiver to reorganize multiple received RRC segments to obtain completeness.
  • RRC message may be a packet header or other forms of cells.
  • the reorganization instruction information may include at least one of the following:
  • Segmentation information (SI), sequence number (SN), offset flag value (segmentation offset, SO), and priority indication information.
  • the segment information may be used to indicate the position of the corresponding RRC segment in the RRC message, that is, the position of part of the data content of the RRC message carried in the corresponding RRC segment among the entire data content of the RRC message.
  • the receiver can determine the position of the RRC segment in the corresponding RRC message according to the segment information, thereby completing the reorganization of the corresponding RRC message.
  • the segment information may include X bit, and the typical value of X may be 2.
  • the segment information may be used to indicate the first, middle, or middle of the corresponding RRC segment in the RRC message.
  • the last paragraph (last); other forms of X bit fields can have different meanings.
  • the segmentation information may also indicate that the RRC message corresponding to the corresponding RRC PDU is not segmented.
  • the sequence number may be used to indicate a sequence number of an RRC message corresponding to a corresponding RRC segment.
  • the receiver can determine the RRC segment from the same RRC message according to the sequence number, thereby completing the reorganization of the RRC message.
  • the reorganization indication information should include a sequence number so that the receiver can identify RRC segments from the same RRC message.
  • the serial number may include Y bit, and the typical value of Y may be 1 or 2.
  • the offset marker value may be used to indicate the offset position of the corresponding RRC segment in the RRC message, that is, the partial data content of the RRC message carried by the corresponding RRC segment is offset from the entire data content of the RRC message. Move position.
  • the reorganization indication information should include an offset tag value in order to distinguish the positions of RRC segments with similar positions in the RRC message.
  • the offset marker value may include P bit, and the typical value of P may be 2 or 3.
  • the offset flag value may also be in the form of a segment number, and the present disclosure does not limit the specific form of the offset. If segment numbering is used, Z bits can be used.
  • RRC PDU1 is first in the RRC message
  • RRC PDU2 is the middle
  • the receiver cannot distinguish between the positions of RRC PDU2 and RRC PDU3 (only know that they are in the RRC message According to the offset position indicated by the SO, the RRC PDU2 and RRC PDU3 positions can be distinguished, that is, the RRC PDU2 is located before the RRC PDU3, thereby completing the reorganization of the RRC message.
  • the priority indication information may be used to indicate the reorganization priority of the RRC message corresponding to the corresponding RRC segment, so as to complete the reorganization of the RRC message according to the priority level. For example, if there are multiple RRC messages that need to be reorganized, according to the priority indication information included in the RRC segment corresponding to each RRC message, the multiple RRC messages may be reorganized in order according to the priority level.
  • the packet information of the RRC segment may further include a reserved bit (R bit), which may be used when a new function is subsequently added.
  • R bit a reserved bit
  • reserved bits can be filled at positions less than byte.
  • the above-mentioned new protocol layer entity may be one of the following situations:
  • SRB SRB
  • DRB DRB
  • UE terminal
  • per-cell group per-cell group
  • the above-mentioned new protocol layer entity may be in one of the following situations:
  • SRB per-SRB
  • DRB per-DRB
  • per-cell group Pertaining to SRB (per-SRB), pertaining to DRB (per-DRB), and per-cell group.
  • per-SRB can be understood as that the processes of establishment and release of new protocol layer entities are affected by the processes of establishment and release of corresponding SRBs. For example, when the SRB is released, the corresponding new protocol layer entity also needs to be released, or each SRB corresponds to a new protocol layer entity.
  • Per-DRB can be understood as the process of establishing and releasing a new protocol layer entity is affected by the process of establishing and releasing a corresponding DRB. For example, when a DRB is released, it also needs to release the corresponding new protocol layer entity, or each DRB corresponds to a new protocol layer entity.
  • Per-UE can be understood as that the new protocol layer entity is maintained by the terminal itself, and the terminal may have one or more new protocol layer entities, and is not affected by the establishment and release of SRB (or DRB) and the network side configuration.
  • a per-cell group can be understood as that the new protocol layer entity is affected by the terminal DC configuration.
  • MCG may be a new protocol layer entity
  • SCG may correspond to a new protocol layer entity.
  • the new protocol layer entity may be established, released, and / or reset in different ways, as described below.
  • the method may further include:
  • the terminal receives the cell group configuration information from the network device.
  • the cell group configuration information includes configuration related information of the new protocol layer entity.
  • the cell group configuration information can be carried by the network device's proprietary signaling (such as an RRC reconfiguration message). ;
  • the terminal When the new protocol layer entity has not been established, the terminal establishes a new protocol layer entity corresponding to the MCG and / or SCG according to the configuration related information of the new protocol layer entity;
  • the terminal When a new protocol layer entity has been established, the terminal resets, releases, or initiates a reconfiguration process for the new protocol layer entity according to the configuration related information of the new protocol layer entity.
  • the method may further include:
  • the network device obtains cell group configuration information, where the cell group configuration information includes configuration related information of a new protocol layer entity;
  • the network device When a new protocol layer entity has not been established, the network device establishes a new protocol layer entity corresponding to MCG and / or SCG according to the configuration related information of the new protocol layer entity;
  • the network device When a new protocol layer entity has been established, the network device resets, releases, or reconfigures the new protocol layer entity according to the configuration related information of the new protocol layer entity.
  • the above-mentioned resetting of the new protocol layer entity can be understood as resetting the restructuring instruction information, such as SI, SN, and / or SO, corresponding to the new protocol layer entity to zero or to the initial value.
  • the method may further include:
  • the terminal receives the configuration information of the SRB from the network device, where the configuration information of the SRB can be carried by the network device's proprietary signaling (such as an RRC reconfiguration message);
  • the terminal establishes and / or releases a new protocol layer entity corresponding to the corresponding SRB; optionally, when releasing the new protocol layer entity, it may be necessary to discard all pending PDUs of the protocol layer entity and / Or SDU.
  • the method may further include:
  • the network device obtains the configuration information of the SRB
  • the network device establishes and / or releases a new protocol layer entity corresponding to the corresponding SRB; optionally, when releasing the new protocol layer entity, it may be necessary to discard all pending PDUs and protocol layer entities / Or SDU.
  • the method may further include:
  • the terminal receives the configuration information of the DRB from the network device; wherein the configuration information of the DRB can be carried by the network device's proprietary signaling (such as an RRC reconfiguration message);
  • the terminal establishes and / or releases a new protocol layer entity corresponding to the corresponding DRB; optionally, when releasing the new protocol layer entity, it may be necessary to discard all pending PDUs of the protocol layer entity and / Or SDU.
  • the method may further include:
  • the network device obtains the configuration information of the DRB
  • the network device establishes and / or releases a new protocol layer entity corresponding to the corresponding DRB; optionally, when releasing a new protocol layer entity, it may be necessary to discard all pending PDUs and protocol layer entities. / Or SDU.
  • the new protocol layer entities of the terminal and the network device correspond.
  • the network device wants to release its own new protocol layer entity (sending entity), it needs to send a signaling to the terminal to release the new protocol layer entity (receiving entity) of the terminal, and then release its own new protocol layer entity.
  • the RRC segmentation function of the terminal (which may correspond to an RRC layer entity or a new protocol layer entity) may be activated through the activation signaling of the network device, or may be performed through the deactivation signaling of the network device. go activate.
  • the method may further include:
  • the terminal receives the activation signaling of the RRC segmentation function from the network device, wherein the RRC segmentation function may be an RRC layer entity or a new protocol layer entity;
  • the terminal activates the RRC segmentation function according to the activation signaling
  • the terminal receives the deactivation signaling of the RRC segmentation function from the network device, where the RRC segmentation function may be an RRC layer entity or a new protocol layer entity;
  • the terminal deactivates the RRC segmentation function according to the activation signaling.
  • activation signaling may take at least one of the following forms:
  • MAC Control Unit Control Element, CE
  • DCI Downlink Control Information
  • the above deactivation signaling may take at least one of the following forms:
  • the activation condition of the RRC segmentation function (that is, when the condition is met, the network device can send activation signaling to the terminal) may be at least one of the following:
  • the network equipment received part of the capability information reported by the terminal;
  • the network device receives capability-related information sent by the terminal, where the capability-related information indicates that the capability information of the terminal exceeds a maximum value of the PDCP SDU size;
  • the network device receives auxiliary information sent by the terminal, where the auxiliary information indicates that the capability information of the terminal exceeds a maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function activation request message sent by the terminal.
  • the above capability-related information may include at least one of the following:
  • the size of the terminal's capability information for example, it can be 10000Byte;
  • the deactivation condition of the RRC segmentation function (that is, when the condition is met, the network device can send deactivation signaling to the terminal) may be at least one of the following:
  • the network equipment did not receive some capability information reported by the terminal within a preset time
  • the network equipment does not receive the capability-related information sent by the terminal within a preset time, and the capability-related information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device does not receive auxiliary information sent by the terminal within a preset time, the auxiliary information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function deactivation request message sent by the terminal;
  • the size of the RRC message of the terminal received by the network device within a preset time is less than the first preset threshold.
  • the length of the preset time can be an absolute value, or it can be maintained by maintaining a timer.
  • the time length or timer determination conditions may be any combination of one or more of the following: an agreement in advance; configuration or preconfiguration by a network device (such as a base station); and a network device (such as a base station) obtained through negotiation with a terminal.
  • the preset time involved in the above deactivation conditions may be the same or different in different deactivation conditions. Depending on the specific situation, the embodiments of the present disclosure do not limit this.
  • the foregoing first preset threshold may be one of the following situations:
  • the maximum packet size of PDCP and SDU at the PDCP layer is 8188 bytes
  • the maximum packet size of the PDCP and SDU at the PDCP layer is 9000 bytes
  • the network device may activate or deactivate the RRC segmentation function by establishing, reconfiguring, or releasing the corresponding protocol layer entity. get on.
  • the activation signaling may include activation indication information of the corresponding SRB, and the foregoing deactivation The signaling may include deactivation indication information of the corresponding SRB;
  • the activation signaling may include activation indication information of the corresponding DRB, and the deactivation signaling described above It may include deactivation indication information of the corresponding DRB;
  • the activation signaling may include activation instruction information of the corresponding MCG and / or SCG
  • the deactivation signaling may include deactivation indication information of the corresponding MCG and / or SCG;
  • the activation signaling may include an RRC message for indicating the activation signaling (that is, which RRC message or type of RRC message is targeted)
  • the deactivation signaling may include indication information used to indicate an RRC message targeted by the deactivation signaling (that is, which RRC message or type is targeted).
  • the RRC segmentation function of the RRC layer entity or the new protocol layer entity may take effect only for a preset RRC message (that is, a specific RRC message).
  • the corresponding RRC segmentation function may target at least one of the following RRC messages:
  • the second preset threshold may be one of the following situations:
  • the maximum packet size of PDCP and SDU at the PDCP layer is 8188 bytes
  • the maximum packet size of the PDCP and SDU at the PDCP layer is 9000 bytes
  • the corresponding RRC segmentation function may be directed to at least one of the following RRC messages:
  • RRC message carrying RACH configuration information.
  • the third preset threshold may be one of the following situations:
  • the maximum packet size of PDCP and SDU at the PDCP layer is 8188 bytes
  • the maximum packet size of the PDCP and SDU at the PDCP layer is 9000 bytes
  • the first preset threshold value, the second preset threshold value, and the third preset threshold value may be the same or different, depending on the specific situation.
  • an embodiment of the present disclosure provides a data transmission method applied to a receiver of a communication device.
  • the receiver of the communication device may be any one of a terminal and a network device.
  • the method includes the following steps: 201 and 202.
  • Step 201 Receive multiple RRC segments from the communication device sender.
  • the RRC segment can be received as a PDCP SDU for the receiver.
  • Each RRC segment in the foregoing multiple RRC segments carries part of the data content in the RRC message generated by the sender of the communication device. All data content in the RRC message may be carried by the multiple RRC segment entities.
  • Step 202 Use the RRC reorganization function of the RRC layer entity of the receiver of the communication device or the RRC reorganization function of the new protocol layer entity to reorganize multiple RRC segments to obtain a complete RRC message.
  • the data transmission method of the embodiment of the present disclosure can realize segmentation of RRC messages, so that when RRC messages are too large, it can adapt to PDCP and SDU, reduce the need for RRC buffers, complete the transmission of RRC messages, and ensure corresponding communication The process went smoothly.
  • the new protocol layer entity is one of the following situations:
  • the new protocol layer entity is one of the following situations:
  • the method further includes:
  • the method further includes:
  • cell group configuration information includes configuration related information of a new protocol layer entity
  • the new protocol layer entity When the new protocol layer entity has been established, the new protocol layer entity is reset, released, or reconfigured according to the configuration related information of the new protocol layer entity.
  • the method further includes:
  • the method further includes:
  • the method further includes:
  • the RRC segmentation function of the sender and the RRC reassembly function of the receiver correspond.
  • a network device activates the terminal's RRC segmentation function through activation signaling, it can activate its own RRC reassembly function; or, when a network device deactivates the terminal's RRC segmentation function through deactivation signaling, it can correspondingly deactivate Activate its own RRC reorganization function; or, while the network device activates the terminal's RRC reorganization function through activation signaling, it can also activate its own RRC segmentation function; or, the network device deactivates the terminal's RRC reorganization function through deactivation signaling. At the same time, you can deactivate its own RRC segmentation function accordingly.
  • the RRC reorganization function of the terminal may be implemented by itself without requiring network device activation.
  • the activation signaling includes activation indication information of the corresponding SRB, and the deactivation signaling includes the corresponding SRB.
  • Deactivation instructions when an RRC layer entity or a new protocol layer entity carrying the RRC reorganization function is related to SRB, the activation signaling includes activation indication information of the corresponding SRB, and the deactivation signaling includes the corresponding SRB.
  • the activation signaling includes activation indication information of the corresponding DRB
  • the deactivation signaling includes deactivation of the corresponding DRB.
  • the activation signaling may include activation instruction information of corresponding MCG and / or SCG, and the deactivation signaling may Deactivation instructions for the corresponding MCG and / or SCG may be included.
  • the method further includes:
  • the activation signaling is used to instruct to activate the RRC segmentation function of the RRC layer entity of the terminal or the RRC segmentation function of the new protocol layer entity;
  • the deactivation signaling is used to instruct to deactivate the RRC segment function of the RRC layer entity of the terminal or the RRC segment function of the new protocol layer entity.
  • the activation condition of the foregoing RRC segmentation function (which may be an RRC layer entity or a new protocol layer entity) is at least one of the following:
  • the network equipment received part of the capability information reported by the terminal;
  • the network device receives capability-related information sent by the terminal, where the capability-related information indicates that the capability information of the terminal exceeds a maximum value of a packet data convergence layer protocol PDCP service data unit SDU size;
  • the network device receives auxiliary information sent by the terminal, where the auxiliary information indicates that the capability information of the terminal exceeds a maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function activation request message sent by the terminal.
  • the deactivation condition of the RRC segmentation function (which may be an RRC layer entity or a new protocol layer entity) is at least one of the following:
  • the network equipment did not receive some capability information reported by the terminal within a preset time
  • the network equipment does not receive the capability-related information sent by the terminal within a preset time, and the capability-related information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device does not receive auxiliary information sent by the terminal within a preset time, the auxiliary information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function deactivation request message sent by the terminal;
  • the size of the RRC message of the terminal received by the network device within a preset time is less than the first preset threshold.
  • an embodiment of the present disclosure further provides a communication device 30.
  • the communication device 30 is a sender.
  • the communication device 30 may be any one of a terminal and a network device.
  • the communication device 30 may include:
  • a generating module 31 is configured to generate multiple RRC segments by using an RRC segment function of an RRC layer entity of the communication device 30 or an RRC segment function of a new protocol layer entity; wherein, among the multiple RRC segments, Each RRC segment carries part of the data content in the RRC message generated by the communication device 30;
  • the first sending module 32 is configured to send the multiple RRC segments to a receiver of the communication device.
  • segmentation of RRC messages can be implemented, so that when RRC messages are too large, PDCP and SDU can be adapted to reduce the need for RRC buffers, complete the transmission of RRC messages, and ensure the corresponding communication process goes smoothly .
  • the new protocol layer entity is one of the following situations:
  • the new protocol layer entity is one of the following situations:
  • the communication device 30 when the communication device 30 is a terminal and the new protocol layer entity is related to a cell group, the communication device 30 further includes:
  • a first receiving module configured to receive cell group configuration information from a network device; wherein the cell group configuration information includes configuration related information of a new protocol layer entity;
  • a first processing module configured to establish a new protocol layer entity corresponding to MCG and / or SCG when the new protocol layer entity has not been established according to configuration related information of the new protocol layer entity; and when the new protocol layer entity When the entity has been established, resetting, releasing, or initiating a reconfiguration process for the new protocol layer entity according to the configuration related information of the new protocol layer entity;
  • the communication device 30 When the communication device 30 is a network device and the new protocol layer entity is related to a cell group, the communication device 30 further includes:
  • a first obtaining module configured to obtain cell group configuration information, where the cell group configuration information includes configuration related information of a new protocol layer entity
  • a second processing module configured to establish a new protocol layer entity corresponding to MCG and / or SCG according to the configuration related information of the new protocol layer entity when the new protocol layer entity has not yet been established; and when the new protocol layer entity When the entity has been established, the new protocol layer entity is reset, released, or reconfigured according to the configuration related information of the new protocol layer entity.
  • the communication device 30 when the communication device 30 is a terminal and the new protocol layer entity is related to SRB or DRB, the communication device 30 further includes:
  • a second receiving module configured to receive SRB configuration information or DRB configuration information from a network device
  • a third processing module configured to establish and / or release a new protocol layer entity corresponding to the corresponding SRB according to the configuration information of the SRB; or to establish and / or release a new protocol corresponding to the corresponding DRB according to the configuration information of the DRB Layer entity
  • the communication device 30 when the communication device 30 is a network device and the new protocol layer entity is related to SRB or DRB, the communication device 30 further includes:
  • a second obtaining module configured to obtain the configuration information of the SRB or the configuration information of the DRB;
  • a fourth processing module configured to establish and / or release a new protocol layer entity corresponding to the corresponding SRB according to the configuration information of the SRB; or, to establish and / or release a new protocol corresponding to the corresponding DRB according to the configuration information of the DRB Layer entity.
  • the communication device 30 when the communication device 30 is a terminal, the communication device 30 further includes:
  • a third receiving module configured to receive activation signaling or deactivation signaling of the RRC segmentation function from a network device
  • a fifth processing module configured to perform activation processing on the RRC segmentation function according to the activation signaling; or perform deactivation processing on the RRC segmentation function according to the deactivation signaling.
  • the activation condition of the RRC segmentation function is at least one of the following:
  • the network equipment received part of the capability information reported by the terminal;
  • the network device receives capability-related information sent by the terminal, where the capability-related information indicates that the capability information of the terminal exceeds a maximum value of a packet data convergence layer protocol PDCP service data unit SDU size;
  • the network device receives auxiliary information sent by the terminal, where the auxiliary information indicates that the capability information of the terminal exceeds a maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function activation request message sent by the terminal.
  • the deactivation condition of the RRC segmentation function is at least one of the following:
  • the network equipment did not receive some capability information reported by the terminal within a preset time
  • the network equipment does not receive the capability-related information sent by the terminal within a preset time, and the capability-related information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device does not receive auxiliary information sent by the terminal within a preset time, the auxiliary information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function deactivation request message sent by the terminal;
  • the size of the RRC message of the terminal received by the network device within a preset time is less than the first preset threshold.
  • the activation signaling adopts at least one of the following forms:
  • the deactivation signaling adopts at least one of the following forms:
  • the activation signaling includes activation indication information of a corresponding SRB
  • the deactivation signaling includes a corresponding SRB Deactivation instructions
  • the activation signaling includes activation indication information of a corresponding DRB
  • the deactivation signaling includes a deactivation of the corresponding DRB.
  • the activation signaling includes activation instruction information of corresponding MCG and / or SCG
  • the deactivation signaling is Including deactivation instruction information of the corresponding MCG and / or SCG;
  • the activation signaling includes indication information for indicating the RRC message targeted by the activation signaling
  • the deactivation signaling includes Indication information for indicating an RRC message targeted by the deactivation signaling.
  • the RRC segmentation function is directed to at least one of the following RRC messages:
  • the RRC segmentation function is directed to at least one of the following RRC messages:
  • RRC message carrying RACH configuration information.
  • an embodiment of the present disclosure further provides a communication device 40.
  • the communication device 40 is a receiver.
  • the communication device 40 may be any one of a terminal and a network device.
  • the communication device 40 may include:
  • a fourth receiving module 41 is configured to receive multiple RRC segments from a sender of a communication device; wherein each RRC segment in the multiple RRC segments carries an RRC message generated by the sender of the communication device. Partial data content;
  • the recombination module 42 is configured to use the RRC reorganization function of the RRC layer entity of the communication device 40 or the RRC reorganization function of the new protocol layer entity to reorganize the plurality of RRC segments to obtain a complete RRC message.
  • segmentation of RRC messages can be implemented, so that when RRC messages are too large, PDCP and SDU can be adapted to reduce the need for RRC buffers, complete the transmission of RRC messages, and ensure the corresponding communication process goes smoothly .
  • the new protocol layer entity is one of the following situations:
  • the new protocol layer entity is one of the following situations:
  • the communication device 40 when the communication device 40 is a terminal and the new protocol layer entity is related to a cell group, the communication device 40 further includes:
  • a fifth receiving module configured to receive cell group configuration information from a network device; wherein the cell group configuration information includes configuration related information of a new protocol layer entity;
  • a sixth processing module configured to establish a new protocol layer entity corresponding to MCG and / or SCG according to the configuration related information of the new protocol layer entity when the new protocol layer entity has not been established; and when the new protocol layer entity When the entity has been established, resetting, releasing, or initiating a reconfiguration process for the new protocol layer entity according to the configuration related information of the new protocol layer entity;
  • the communication device 40 When the communication device 40 is a network device and the new protocol layer entity is related to a cell group, the communication device 40 further includes:
  • a third obtaining module configured to obtain cell group configuration information, where the cell group configuration information includes configuration related information of a new protocol layer entity
  • a seventh processing module is configured to establish a new protocol layer entity corresponding to MCG and / or SCG according to configuration related information of the new protocol layer entity when the new protocol layer entity has not been established; and when the new protocol layer entity When the entity has been established, the new protocol layer entity is reset, released, or reconfigured according to the configuration related information of the new protocol layer entity.
  • the communication device 40 when the communication device 40 is a terminal and the new protocol layer entity is related to SRB or DRB, the communication device 40 further includes:
  • a sixth receiving module configured to receive SRB configuration information or DRB configuration information from a network device
  • An eighth processing module configured to establish and / or release a new protocol layer entity corresponding to the corresponding SRB according to the configuration information of the SRB; or to establish and / or release a new protocol corresponding to the corresponding DRB according to the configuration information of the DRB Layer entity
  • the communication device 40 When the communication device 40 is a network device and the new protocol layer entity is related to SRB or DRB, the communication device 40 further includes:
  • a fourth obtaining module configured to obtain the configuration information of the SRB or the configuration information of the DRB;
  • the ninth processing module is configured to establish and / or release a new protocol layer entity corresponding to the corresponding SRB according to the configuration information of the SRB; or, to establish and / or release a new protocol corresponding to the corresponding DRB according to the configuration information of the DRB Layer entity.
  • the communication device 40 when the communication device 40 is a terminal, the communication device 40 further includes:
  • a seventh receiving module configured to receive activation signaling or deactivation signaling of the RRC reassembly function from a network device;
  • a tenth processing module is configured to perform activation processing on the RRC reassembly function according to the activation signaling; or perform deactivation processing on the RRC reassembly function according to the deactivation signaling.
  • the activation signaling includes activation indication information of the corresponding SRB, and the deactivation signaling includes the corresponding SRB.
  • Deactivation instructions when an RRC layer entity or a new protocol layer entity carrying the RRC reorganization function is related to SRB, the activation signaling includes activation indication information of the corresponding SRB, and the deactivation signaling includes the corresponding SRB.
  • the activation signaling includes activation indication information of the corresponding DRB
  • the deactivation signaling includes deactivation of the corresponding DRB.
  • the activation signaling includes activation instruction information of corresponding MCG and / or SCG
  • the deactivation signaling includes Corresponding MCG and / or SCG deactivation indication information.
  • the communication device 40 when the communication device 40 is a network device, the communication device 40 may further include:
  • a second sending module configured to send activation signaling or deactivation signaling to the terminal
  • the activation signaling is used to instruct to activate the RRC segmentation function of the RRC layer entity of the terminal or the RRC segmentation function of the new protocol layer entity;
  • the deactivation signaling is used to instruct to deactivate the RRC segment function of the RRC layer entity of the terminal or the RRC segment function of the new protocol layer entity.
  • the activation condition of the RRC segmentation function is at least one of the following:
  • the network equipment received part of the capability information reported by the terminal;
  • the network device receives capability-related information sent by the terminal, where the capability-related information indicates that the capability information of the terminal exceeds a maximum value of the PDCP SDU size;
  • the network device receives auxiliary information sent by the terminal, where the auxiliary information indicates that the capability information of the terminal exceeds a maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function activation request message sent by the terminal.
  • the deactivation condition of the RRC segmentation function is at least one of the following:
  • the network equipment did not receive some capability information reported by the terminal within a preset time
  • the network equipment does not receive the capability-related information sent by the terminal within a preset time, and the capability-related information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device does not receive auxiliary information sent by the terminal within a preset time, the auxiliary information indicates that the capability information of the terminal exceeds the maximum value of the PDCP SDU size;
  • the network device receives the RRC segmentation function deactivation request message sent by the terminal;
  • the size of the RRC message of the terminal received by the network device within a preset time is less than the first preset threshold.
  • an embodiment of the present disclosure further provides a communication device, including a processor, a memory, and a program stored on the memory and executable on the processor, wherein the program is implemented when the program is executed by the processor.
  • a communication device including a processor, a memory, and a program stored on the memory and executable on the processor, wherein the program is implemented when the program is executed by the processor.
  • the communication device may be a sender, a receiver, a terminal, or a network device.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present disclosure.
  • the terminal 500 includes, but is not limited to, a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, and a display unit. 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511.
  • the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or some components may be combined, or different components may be arranged.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.
  • the processor 510 is configured to use the RRC segment function of the RRC layer entity of the terminal 500 or the RRC segment function of the new protocol layer entity to generate multiple RRC segments;
  • Each RRC segment in the plurality of RRC segments carries a part of data content in an RRC message generated by the terminal 500;
  • the radio frequency unit 501 is configured to send the multiple RRC segments to a network device.
  • the radio frequency unit 501 is configured to receive multiple RRC segments from a network device; each RRC segment in the multiple RRC segments carries the RRC segment generated by the network device. Part of the data content in the RRC message; using the RRC reorganization function of the RRC layer entity of the terminal 500 or the RRC reorganization function of the new protocol layer entity, reorganizing the plurality of RRC segments to obtain a complete RRC message.
  • segmentation of RRC messages can be implemented, so that when RRC messages are too large, PDCP and SDU can be adapted to reduce the need for RRC buffers, complete the transmission of RRC messages, and ensure the corresponding communication process goes smoothly .
  • the radio frequency unit 501 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 510; The uplink data is sent to the base station.
  • the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 502, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output it as a sound. Moreover, the audio output unit 503 may also provide audio output (for example, a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal 500.
  • the audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 504 is used for receiving audio or video signals.
  • the input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042.
  • the graphics processor 5041 pairs images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frames may be displayed on the display unit 506.
  • the image frames processed by the graphics processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502.
  • the microphone 5042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 501 in the case of a telephone call mode and output.
  • the terminal 500 further includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 5061 and / when the terminal 500 is moved to the ear. Or backlight.
  • an accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes).
  • sensor 505 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.
  • the display unit 506 is configured to display information input by the user or information provided to the user.
  • the display unit 506 may include a display panel 5061.
  • the display panel 5061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the user input unit 507 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal.
  • the user input unit 507 includes a touch panel 5071 and other input devices 5072.
  • the touch panel 5071 also known as a touch screen, can collect user's touch operations on or near it (such as the user using a finger, stylus, etc. Any suitable object or accessory on the touch panel 5071 or near the touch panel 5071 operating).
  • the touch panel 5071 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it To the processor 510, receive the command sent by the processor 510 and execute it.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 5071.
  • the user input unit 507 may also include other input devices 5072.
  • other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.
  • the touch panel 5071 may be overlaid on the display panel 5061. After the touch panel 5071 detects a touch operation on or near the touch panel 5071, the touch panel 5071 transmits the touch operation to the processor 510 to determine the type of the touch event. The type of event provides corresponding visual output on the display panel 5061.
  • the touch panel 5071 and the display panel 5061 are implemented as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated and Implement the input and output functions of the terminal, which are not limited here.
  • the interface unit 508 is an interface for connecting an external device to the terminal 500.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 508 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 500 or may be used to communicate between the terminal 500 and an external device. Transfer data.
  • the memory 509 can be used to store software programs and various data.
  • the memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 509 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 510 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal.
  • the processor 510 runs or executes software programs and / or modules stored in the memory 509, and calls data stored in the memory 509 to execute Various functions and processing data of the terminal, so as to monitor the terminal as a whole.
  • the processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 510.
  • the terminal 500 may further include a power source 511 (such as a battery) for supplying power to various components.
  • a power source 511 such as a battery
  • the power source 511 may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • terminal 500 may further include some functional modules that are not shown, and details are not described herein again.
  • FIG. 6 is a schematic diagram of a hardware structure of a network device that implements various embodiments of the present disclosure.
  • the network device 60 includes, but is not limited to, a bus 61, a transceiver 62, an antenna 63, a bus interface 64, a processor 65, and Memory 66.
  • the network device 60 further includes a program stored on the memory 66 and executable on the processor 65.
  • each RRC segment in the multiple RRC segments carries a network device Part of the data content in the RRC message generated at 60; sending the plurality of RRC segments to the terminal.
  • the network device 60 when the network device 60 is the receiver, when the program is executed by the processor 65, the following steps are implemented:
  • each RRC segment in the multiple RRC segments carries part of the data content in the RRC message generated by the terminal; utilize the RRC reorganization function of the RRC layer entity of the network device 60 Or the RRC reorganization function of the new protocol layer entity, reorganizing the plurality of RRC segments to obtain a complete RRC message.
  • the transceiver 62 is configured to receive and send data under the control of the processor 65.
  • the bus architecture (represented by bus 61).
  • the bus 61 may include any number of interconnected buses and bridges.
  • the bus 61 will include one or more processors represented by the processor 65 and memories represented by the memory 66.
  • Various circuits are linked together.
  • the bus 61 can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore, they are not described further herein.
  • the bus interface 64 provides an interface between the bus 61 and the transceiver 62.
  • the transceiver 62 may be a single element or a plurality of elements, such as a plurality of receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium.
  • the data processed by the processor 65 is transmitted on a wireless medium through the antenna 63. Further, the antenna 63 also receives the data and transmits the data to the processor 65.
  • the processor 65 is responsible for managing the bus 61 and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory 66 may be used to store data used by the processor 65 when performing operations.
  • the processor 65 may be a CPU, an ASIC, an FPGA, or a CPLD.
  • An embodiment of the present disclosure further provides a computer-readable storage medium.
  • a program is stored on the computer-readable storage medium.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
  • the methods in the above embodiments can be implemented by means of software plus a necessary universal hardware platform, and of course, also by hardware, but in many cases the former is better.
  • Implementation Based on this understanding, the technical solution of the present disclosure that is essentially or contributes to the existing technology can be embodied in the form of a software product that is stored in a storage medium (such as ROM / RAM, magnetic disk, The optical disc) includes several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present disclosure.
  • a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本公开提供一种数据传输方法及通信设备，其中，所述数据传输方法包括：利用通信设备发送方的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；将所述多个RRC分段发送给通信设备接收方。

Description

数据传输方法及通信设备
相关申请的交叉引用
本申请主张在2018年9月27日在中国提交的中国专利申请No.201811133799.6的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种数据传输方法及通信设备。
背景技术
在第五代移动通信技术(5-th Generation，5G)和长期演进(Long Term Evolution，LTE)系统中，终端比如用户设备(User Equipment，UE)的空口能力是通过无线资源控制(Radio Resource Control，RRC)层上报的。在面对频段组合越来越多、各组合频段的能力具备差异、多输入多输出(Multiple-Input Multiple-Output，MIMO)和射频(Radio Frequency，RF)能力均有不同等等情况下，UE能力上报可能需要占据很大的空间。比如，一个UE在5G空口能力上报中，可能达到1G字节(byte)的最大值。
此外，新无线(New Radio，NR)系统中具有信道状态信息参考信号(Channel State Information-Reference Signal，CSI-RS)相关的测量配置信息和随机接入信道(Random Access Channel，RACH)配置信息，当其中CSI-RS使用的资源过多时，同样导致相应RRC消息过大。
目前RRC层实体的处理机制为，将生成的RRC消息直接作为RRC协议数据单元(Protocol Data Unit，PDU)，即分组数据汇聚层协议(Packet Data Convergence Protocol，PDCP)服务数据单元(Service Data Unit，SDU)发送给PDCP层实体。而PDCP SDU大小的最大值比如在4G(4-th Generation)系统中是8188字节byte，在5G系统中是9000byte。
这样，当RRC消息过大时，将超过PDCP SDU的限制和导致RRC缓冲器需求过大，影响相应通信过程顺利进行。
发明内容
本公开实施例提供一种数据传输方法及通信设备，以解决现有的当RRC消息过大时，将超过PDCP SDU的限制和导致RRC缓冲器需求过大的问题。
第一方面，本公开实施例提供了一种数据传输方法，应用于通信设备发送方，所述通信设备发送方为终端和网络设备中的一个，所述方法包括：
利用所述通信设备发送方的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
将所述多个RRC分段发送给通信设备接收方。
第二方面，本公开实施例提供了一种数据传输方法，应用于通信设备接收方，所述通信设备接收方为终端和网络设备中的一个，所述方法包括：
从通信设备发送方接收多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
利用所述通信设备接收方的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
第三方面，本公开实施例提供了一种通信设备，其中，所述通信设备为发送方，所述通信设备为终端和网络设备中的一个，所述通信设备包括：
生成模块，用于利用所述通信设备的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备生成的RRC消息中的部分数据内容；
第一发送模块，用于将所述多个RRC分段发送给通信设备接收方。
第四方面，本公开实施例提供了一种通信设备，其中，所述通信设备为接收方，所述通信设备为终端和网络设备中的一个，所述通信设备包括：
第四接收模块，用于从通信设备发送方接收多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
重组模块，用于利用所述通信设备的RRC层实体的RRC重组功能或新 协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
第五方面，本公开实施例提供了一种通信设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其中，所述程序被所述处理器执行时可实现上述数据传输方法的步骤。可选的，所述通信设备可为发送方，或者接收方，也可为终端，或者网络设备。
第六方面，本公开实施例提供了一种计算机可读存储介质，其上存储有程序，其中，所述程序被处理器执行时可实现上述数据传输方法的步骤。
本公开实施例中，通过利用RRC分段功能，生成多个RRC分段，所述多个RRC分段中的每个RRC分段携带有通信设备发送方生成的RRC消息中的部分数据内容，该RRC消息中的全部数据内容由该多个RRC分段携带，将该多个RRC分段发送给通信设备接收方，可以实现对RRC消息的分段，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例的一数据传输方法的流程图；
图2为本公开实施例的另一数据传输方法的流程图；
图3为本公开实施例的通信设备的结构示意图之一；
图4为本公开实施例的通信设备的结构示意图之二；
图5为本公开实施例的终端的结构示意图；
图6为本公开实施例的网络设备的结构示意图。
具体实施方式
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例中 所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
首先说明的是，为了解决相关技术中当RRC消息过大时，将超过PDCP SDU的限制和导致RRC缓冲器需求过大的问题，本公开实施例引入了RRC分段功能，该RRC分段功能可以由RRC层实体承载，也可以由新协议层实体承载。这样通过引入的RRC分段功能，可以对过大的RRC消息进行分段处理，得到多个RRC分段，该多个RRC分段可携带有相应RRC消息中的全部数据内容，该多个RRC分段中的每个RRC分段可携带有相应RRC消息中的部分数据内容，并将每个RRC分段作为PDCP SDU递交给PDCP层实体，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
具体实现时，通信设备发送方(可简称为发送方)生成RRC消息后，相应的传输过程依次可为：从发送方RRC层实体、发送方PDCP层实体、发送方RLC层实体、发送方MAC层实体、发送方PHY层实体、接收方(即通信设备接收方)PHY层实体、接收方MAC层实体、接收方RLC层实体、接收方PDCP层实体到接收方RRC层实体。这样通过RRC分段功能生成的RRC分段，对于发送方可以RRC PDU形式存在，而对于接收方可作为PDCP SDU被接收，即RRC PDU可等同于PDCP SDU。
在无线通信系统中，终端可以采用双重连接(Dual Connectivity，DC)架构，对应包括两个小区组，分别为主小区组(Master Cell Group，MCG)和辅小区组(Secondary Cell Group，SCG)。而该MCG对应于网络侧的主节点(Master Node，MN)，该SCG对应于网络侧的辅节点(secondary node，SN)。该MCG可包括主小区PCell和辅小区SCell，该SCG可包括主辅小区PSCell和辅小区SCell。其中PCell和PSCell也可统称为SpCell。对于承载类型可包括信令无线承载(Signalling Radio Bearers，SRB)和数据无线承载(Date Radio Bearers，DRB)，而MCG SRB(或DRB)仅仅通过MCG收发数据，SCG SRB(或DRB)仅仅通过SCG收发数据，Split SRB(或DRB)同时通过MCG和SCG收发数据。
当采用DC架构时，LTE的小区可以作为MCG小区，NR(New RAT，新空口，即5G)的小区可以作为SCG小区。该DC架构下，终端连接的核心网为LTE的核心网比如演进数据包核心(Evolved Packet Core，EPC)。该DC架构下，MCG对应的PDCP层实体可以采用NR的配置(即配置成NR的PDCP层实体)，而MCG下其他的配置包括RLC层实体及MAC层实体等的配置，仍然采用LTE的配置。
下面将结合实施例和附图对本公开的数据传输方法进行说明。
参见图1所示，本公开实施例提供一种数据传输方法，应用于通信设备发送方，所述通信设备发送方可以为终端和网络设备中的任意一个，所述方法包括如下步骤：101和102。
步骤101：利用通信设备发送方的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段。
其中，对于发送方该RRC分段可以RRC PDU形式存在。上述多个RRC分段中的每个RRC分段携带有通信设备发送方生成的RRC消息中的部分数据内容。该RRC消息中的全部数据内容可以由多个RRC分段携带。上述生成多个RRC分段可以理解为利用通信设备发送方的RRC层实体或新协议层实体的RRC分段功能，对生成的RRC消息进行分段处理，得到多个RRC分段。即借助RRC分段功能，可以将生成的RRC消息划分成多个RRC消息进行传输。
可以理解的，具体实现时，对应于上行数据传输过程，通信设备发送方为终端，而通信设备接收方为网络设备；而对应于下行数据传输过程，通信设备发送方为网络设备，而通信设备接收方为终端。
比如，若通信设备发送方为UE1，UE1生成的一个RRC消息占用15000byte(超过PDCP SDU限制)，则UE1可以利用RRC层实体(或新协议层实体)的RRC分段功能，将该RRC消息分段处理为RRC PDU1(比如占用7000byte)和RRC PDU2(比如占用8000byte)，或者分段处理为RRC PDU1(比如占用4000byte)、RRC PDU2(比如占用4000byte)和RRC PDU3(比如占用6000byte)，以适配PDCP SDU，完成RRC消息的传输。
需说明的是，上述实施例仅以分段处理为两段或者三段为例，具体实现 时也可分段处理为四段等，本公开实施例不对此进行限制。至于如何对RRC消息进行分段处理，即如何选择RRC分段占用的byte，发送方可以按需选择，也可以基于预设规则进行选择。
步骤102：将多个RRC分段发送给通信设备接收方。
这样，通信设备接收方接收到此多个RRC分段后，可以对多个RRC分段进行重组，得到完整的RRC消息。
本公开实施例的数据传输方法，通过利用RRC分段功能生成多个RRC分段，该多个RRC分段中的每个RRC分段携带有通信设备发送方生成的RRC消息中的部分数据内容，将该多个RRC分段发送给通信设备接收方，可实现对RRC消息的分段，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
本公开具体实施例中，可选的，上述RRC分段的组包信息中可包括重组指示信息，该重组指示信息用于通信设备接收方对接收到的多个RRC分段进行重组，得到完整的RRC消息。上述组包信息可以是包头或者其他形式的信元。
进一步的，该重组指示信息可以包括如下至少一项：
分段信息(segmentation info，SI)、序号(sequence number，SN)、偏移量标记值(segmentation offset，SO)和优先级指示信息。
可选的，该分段信息可用于指示相应RRC分段在RRC消息中的位置，即相应RRC分段携带有的RRC消息的部分数据内容在RRC消息的全部数据内容中的位置。这样，接收方根据该分段信息，可以确定RRC分段在相应RRC消息中的位置，从而完成相应RRC消息的重组。
比如具体实现时，该分段信息可以包括X bit，X典型值可以为2；该分段信息可以用于指示相应RRC分段在RRC消息中的第一段(first)、中段(middle)或者最后一段(last)；而其他形式的X bit字段涵义可以与此不同。此外，在未分段处理的情况下，该分段信息还可以指示相应RRC PDU对应的RRC消息未分段。
可选的，该序号可用于指示相应RRC分段对应的RRC消息的序号。这样接收方根据该序号，可以确定来自同一RRC消息的RRC分段，从而完成 RRC消息的重组。
值得说明的是，当RRC复用(duplication)功能启用时，该重组指示信息要包括序号，以便接收方识别来自同一RRC消息的RRC分段。比如具体实现时，该序号可以包括Y bit，Y典型值可以为1或2。
可选的，该偏移量标记值可用于指示相应RRC分段在RRC消息中的偏移位置，即相应RRC分段携带有的RRC消息的部分数据内容在RRC消息的全部数据内容中的偏移位置。值得说明的是，当PDCP乱序递交时，该重组指示信息要包括偏移量标记值，以便区分位置相似的RRC分段在RRC消息中的位置。比如具体实现时，该偏移量标记值可以包括P bit，P典型值可以为2或3。该偏移量标记值也可以是分段编号的形式，本公开不限制偏移量的具体形式。如果采用分段编号的形式，可以采用Z比特。
例如，若某UE生成的RRC消息被分段处理为RRC PDU1、RRC PDU2、RRC PDU3和RRC PDU4，根据各自SI已经指示RRC PDU1在RRC消息中的first、RRC PDU2在RRC消息中的middle、RRC PDU3在RRC消息中的middle以及RRC PDU4在RRC消息中的last，这时接收方接收到RRC PDU2和RRC PDU3后，并不能区分RRC PDU2和RRC PDU3的先后位置(仅知道两者在RRC消息中的middle)，而根据SO指示的偏移位置可以区分RRC PDU2和RRC PDU3的先后位置，即RRC PDU2位于RRC PDU3之前，从而完成RRC消息的重组。
可选的，该优先级指示信息可用于指示相应RRC分段对应的RRC消息的重组优先级，以按照优先级高低完成RRC消息的重组。例如，若存在多个RRC消息需要进行重组，则可根据每个RRC消息对应的RRC分段中包括的优先级指示信息，按照优先级高低，依次对该多个RRC消息进行重组。
本公开具体实施例中，上述RRC分段的组包信息中还可包括预留比特(R bit)，该预留比特可以在后续新添功能时使用。而为了保证组包信息占用整数个字节(byte align)，在不足byte的位置可以填充预留比特。
本公开具体实施例中，可选的，当通信设备发送方为终端时，上述新协议层实体可以为如下情况之一：
与SRB有关(per-SRB)、与DRB有关(per-DRB)、与终端有关(per-UE) 和与小区组有关(per-cell group)。
或者，当通信设备发送方为网络设备时，上述新协议层实体可以为如下情况之一：
与SRB有关(per-SRB)、与DRB有关(per-DRB)和与小区组有关(per-cell group)。
其中，per-SRB可以理解为，新协议层实体的建立和释放等过程受相应SRB的建立和释放等过程的影响。比如，SRB释放时也需要释放相应的新协议层实体，或者每个SRB对应着一个新协议层实体。
per-DRB可以理解为，新协议层实体的建立和释放等过程受相应DRB的建立和释放等过程的影响。比如，DRB释放时也需要释放相应的新协议层实体，或者每个DRB对应着一个新协议层实体。
per-UE可以理解为，新协议层实体为终端自己保持，终端可能有一个或多个新协议层实体，且不受SRB(或DRB)的建立、释放等过程，以及网络侧配置的影响。
per-cell group可以理解为，新协议层实体受终端DC配置的影响。比如，MCG可一个新协议层实体，SCG可对应一个新协议层实体。
本公开具体实施例中，基于上述的新协议层实体的情况，新协议层实体可以采用不同方式建立、释放和/或重置等，说明如下。
可选的，当通信设备发送方为终端，且新协议层实体与小区组有关时，所述方法还可包括：
终端从网络设备接收小区组配置信息；其中，该小区组配置信息中包括新协议层实体的配置相关信息；该小区组配置信息可以通过网络设备的专有信令(比如RRC重配消息)携带；
当新协议层实体尚未建立时，终端根据该新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；
当新协议层实体已经建立时，终端根据该新协议层实体的配置相关信息，对新协议层实体进行重置、释放或发起重配过程。
或者，当通信设备发送方为网络设备，且新协议层实体与小区组有关时，所述方法还可包括：
网络设备获取小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
当新协议层实体尚未建立时，网络设备根据该新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；
当新协议层实体已经建立时，网络设备根据该新协议层实体的配置相关信息，对新协议层实体进行重置、释放或重配。
其中上述对新协议层实体进行重置可以理解为，将该新协议层实体对应的重组指示信息比如SI、SN和/或SO，重置为零或重置为初始值。
可选的，当通信设备发送方为终端，且新协议层实体与SRB有关时，所述方法还可包括：
终端从网络设备接收SRB的配置信息；其中，该SRB的配置信息可以通过网络设备的专有信令(比如RRC重配消息)携带；
根据该SRB的配置信息，终端建立和/或释放相应SRB对应的新协议层实体；其中可选的，在释放新协议层实体时，可能需要丢弃所有挂起的该协议层实体的PDU和/或SDU。
或者，当通信设备发送方为网络设备，且新协议层实体与SRB有关时，所述方法还可包括：
网络设备获取SRB的配置信息；
根据该SRB的配置信息，网络设备建立和/或释放相应SRB对应的新协议层实体；其中可选的，在释放新协议层实体时，可能需要丢弃所有挂起的该协议层实体的PDU和/或SDU。
可选的，当通信设备发送方为终端，且新协议层实体与DRB有关时，所述方法还可包括：
终端从网络设备接收DRB的配置信息；其中，该DRB的配置信息可以通过网络设备的专有信令(比如RRC重配消息)携带；
根据该DRB的配置信息，终端建立和/或释放相应DRB对应的新协议层实体；其中可选的，在释放新协议层实体时，可能需要丢弃所有挂起的该协议层实体的PDU和/或SDU。
或者，当通信设备发送方为网络设备，且新协议层实体与DRB有关时， 所述方法还可包括：
网络设备获取DRB的配置信息；
根据该DRB的配置信息，网络设备建立和/或释放相应DRB对应的新协议层实体；其中可选的，在释放新协议层实体时，可能需要丢弃所有挂起的该协议层实体的PDU和/或SDU。
可以理解的，终端和网络设备的新协议层实体是对应的。比如若网络设备要释放自身的新协议层实体(发送实体)，需要先向终端发送信令以释放终端的新协议层实体(接收实体)，然后释放自身的新协议层实体。
本公开具体实施例中，对于终端的RRC分段功能(可对应于RRC层实体或者新协议层实体)，可以通过网络设备的激活信令进行激活，也可以通过网络设备的去激活信令进行去激活。
可选的，当上述通信设备发送方为终端时，所述方法还可包括：
终端从网络设备接收RRC分段功能的激活信令；其中，所述RRC分段功能可以为RRC层实体的，也可以为新协议层实体的；
终端根据该激活信令，对RRC分段功能进行激活处理；
或者，
终端从网络设备接收RRC分段功能的去激活信令；其中，所述RRC分段功能可以为RRC层实体的，也可以为新协议层实体的；
终端根据该激活信令，对RRC分段功能进行去激活处理。
进一步的，上述激活信令可以采用如下形式中的至少一项：
MAC控制单元(Control Element，CE)、下行控制信息(Downlink Control Information，DCI)和RRC消息。
上述去激活信令可以采用如下形式中的至少一项：
MAC CE、DCI和RRC消息。
进一步的，上述RRC分段功能的激活条件(即满足此条件时，网络设备可向终端发送激活信令)可为如下至少一项：
网络设备接收到终端上报的部分能力信息；
网络设备接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能激活请求消息。
其中可选的，上述能力相关信息可以包括如下至少一项：
指示终端的能力信息超过PDCP SDU大小的最大值的信息；
终端的能力信息的大小；比如可为10000Byte；
指示终端支持RRC分段功能的信息。
进一步的，上述RRC分段功能的去激活条件(即满足此条件时，网络设备可向终端发送去激活信令)可以为如下至少一项：
网络设备预设时间内未接收到终端上报部分能力信息；
网络设备预设时间内未接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备预设时间内未接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能去激活请求消息；
网络设备预设时间内接收到的终端的RRC消息的大小均小于第一预设门限值。
可以理解的，上述预设时间的时间长度可以是一个绝对值，也可以是通过维护一个定时器timer。该时间长度或timer的确定条件可以是以下一项或多项的任意组合：协议事先约定；由网络设备(比如基站)进行配置或预配置；网络设备(比如基站)与终端协商得到。上述去激活条件中涉及的预设时间在不同的去激活条件中可以相同，也可以不相同，依具体情况而定，本公开实施例不对此进行限制。
上述第一预设门限值可以是如下情况之一：
4G系统中，PDCP层的PDCP SDU的数据包大小的最大值8188字节；
5G系统中，PDCP层的PDCP SDU的数据包大小的最大值9000字节；
由协议约定或网络设备配置的字节大小。
本公开具体实施例中，可选的，若RRC分段功能由新协议层实体完成，对于网络设备激活或去激活RRC分段功能，也可以通过建立、重配或释放相 应的协议层实体来进行。
可选的，当承载RRC分段功能的RRC层实体或新协议层实体与SRB有关(即per-SRB配置的)时，上述激活信令中可包括相应SRB的激活指示信息，而上述去激活信令中可包括相应SRB的去激活指示信息；
或者，当承载RRC分段功能的RRC层实体或新协议层实体与DRB有关(即per-DRB配置的)时，上述激活信令中可包括相应DRB的激活指示信息，而上述去激活信令中可包括相应DRB的去激活指示信息；
或者，当承载RRC分段功能的RRC层实体或新协议层实体与小区组有关(即per-cell group配置的)时，上述激活信令中可包括相应MCG和/或SCG的激活指示信息，而上述去激活信令中可包括相应MCG和/或SCG的去激活指示信息；
或者，当上述RRC分段功能针对预设RRC消息生效时，上述激活信令中可包括用于指示所述激活信令所针对的RRC消息(即是针对的哪一条或哪一类RRC消息)的指示信息，而上述去激活信令中可包括用于指示所述去激活信令所针对的RRC消息(即是针对的哪一条或哪一类RRC消息)的指示信息。
本公开具体实施例中，对于RRC层实体或新协议层实体的RRC分段功能，可以仅针对预设RRC消息(即特定的RRC message)生效。
可选的，当通信设备发送方为终端时，对应的RRC分段功能可以针对如下RRC消息中的至少一项：
所携带的数据部分的大小大于第二预设门限值的RRC消息；
用于上报终端能力的RRC消息。
其中，上述第二预设门限值可以是如下情况之一：
4G系统中，PDCP层的PDCP SDU的数据包大小的最大值8188字节；
5G系统中，PDCP层的PDCP SDU的数据包大小的最大值9000字节；
由协议约定或网络设备配置的字节大小。
或者，当通信设备发送方为网络设备时，对应的RRC分段功能可以针对如下RRC消息中的至少一项：
所携带的数据部分的大小大于第三预设门限值的RRC消息；
RRC重配消息；
携带有CSI-RS相关的测量配置信息的RRC消息；
携带有RACH配置信息的RRC消息。
其中，上述第三预设门限值可以是如下情况之一：
4G系统中，PDCP层的PDCP SDU的数据包大小的最大值8188字节；
5G系统中，PDCP层的PDCP SDU的数据包大小的最大值9000字节；
由协议约定或网络设备配置的字节大小。
可以理解的，具体实现时，上述第一预设门限值、第二预设门限值和第三预设门限值之间可以相同，也可以不相同，依具体情况而定。
参见图2所示，本公开实施例提供一种数据传输方法，应用于通信设备接收方，所述通信设备接收方可以为终端和网络设备中的任意一个，所述方法包括如下步骤：201和202。
步骤201：从通信设备发送方接收多个RRC分段。
其中，对于接收方该RRC分段可以作为PDCP SDU被接收。上述多个RRC分段中的每个RRC分段携带有通信设备发送方生成的RRC消息中的部分数据内容。所述RRC消息中的全部数据内容可由所述多个RRC分段实体携带。
步骤202：利用通信设备接收方的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对多个RRC分段进行重组，得到完整的RRC消息。
本公开实施例的数据传输方法，可以实现对RRC消息的分段，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
本公开具体实施例中，可选的，当所述通信设备接收方为终端时，所述新协议层实体为如下情况之一：
与SRB有关、与DRB有关、与终端有关和与小区组有关；
或者，当所述通信设备接收方为网络设备时，所述新协议层实体为如下情况之一：
与SRB有关、与DRB有关和与小区组有关。
可选的，当所述通信设备接收方为终端，且所述新协议层实体与小区组有关时，所述方法还包括：
从网络设备接收小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；
当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或发起重配过程；
或者，当所述通信设备接收方为网络设备，且所述新协议层实体与小区组有关时，所述方法还包括：
获取小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；
当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或重配。
可选的，当所述通信设备接收方为终端，且所述新协议层实体与SRB或DRB有关时，所述方法还包括：
从网络设备接收SRB的配置信息，或DRB的配置信息；
根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体；
或者，当所述通信设备接收方为网络设备，且所述新协议层实体与SRB或DRB有关时，所述方法还包括：
获取SRB的配置信息，或DRB的配置信息；
根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体。
可选的，当所述通信设备接收方为终端时，所述方法还包括：
从网络设备接收所述RRC重组功能的激活信令，或去激活信令；
根据所述激活信令，对所述RRC重组功能进行激活处理；或，根据所述去激活信令，对所述RRC重组功能进行去激活处理。
可以理解的，发送方的RRC分段功能和接收方的RRC重组功能是对应的。比如，网络设备通过激活信令激活终端的RRC分段功能的同时，可相应激活自身的RRC重组功能；或者，网络设备通过去激活信令去激活终端的RRC分段功能的同时，可相应去激活自身的RRC重组功能；或者，网络设备通过激活信令激活终端的RRC重组功能的同时，可相应激活自身的RRC分段功能；或者，网络设备通过去激活信令去激活终端的RRC重组功能的同时，可相应去激活自身的RRC分段功能。此外具体实现时，终端的RRC重组功能也可能无需网络设备激活，而由自身实现。
可选的，当承载所述RRC重组功能的RRC层实体或新协议层实体与SRB有关时，所述激活信令中包括相应SRB的激活指示信息，所述去激活信令中包括相应SRB的去激活指示信息；
或者，当承载所述RRC重组功能的RRC层实体或新协议层实体与DRB有关时，所述激活信令中包括相应DRB的激活指示信息，所述去激活信令中包括相应DRB的去激活指示信息；
或者，当承载所述RRC重组功能的RRC层实体或新协议层实体与小区组有关时，所述激活信令中可包括相应MCG和/或SCG的激活指示信息，所述去激活信令中可包括相应MCG和/或SCG的去激活指示信息。
可选的，当所述通信设备接收方为网络设备时，所述方法还包括：
向终端发送激活信令，或去激活信令；
其中，所述激活信令用于指示激活所述终端的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能；
所述去激活信令用于指示去激活所述终端的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能。
可选的，上述RRC分段功能(可以为RRC层实体的，也可以为新协议层实体的)的激活条件为如下至少一项：
网络设备接收到终端上报的部分能力信息；
网络设备接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过分组数据汇聚层协议PDCP服务数据单元SDU大小的最大值；
网络设备接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能激活请求消息。
可选的，上述RRC分段功能(可以为RRC层实体的，也可以为新协议层实体的)的去激活条件为如下至少一项：
网络设备预设时间内未接收到终端上报部分能力信息；
网络设备预设时间内未接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备预设时间内未接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能去激活请求消息；
网络设备预设时间内接收到的终端的RRC消息的大小均小于第一预设门限值。
上述实施例对本公开的数据传输方法进行了说明，下面将结合实施例和附图对本公开的通信设备进行说明。
参见图3所示，本公开实施例还提供了一种通信设备30，所述通信设备30为发送方，所述通信设备30可为终端和网络设备中的任意一个，所述通信设备30可包括：
生成模块31，用于利用所述通信设备30的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备30生成的RRC消息中的部分数据内容；
第一发送模块32，用于将所述多个RRC分段发送给通信设备接收方。
本公开实施例中，可以实现对RRC消息的分段，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
本公开实施例中，可选的，当所述通信设备30为终端时，所述新协议层实体为如下情况之一：
与SRB有关、与DRB有关、与终端有关和与小区组有关；
或者，当所述通信设备30为网络设备时，所述新协议层实体为如下情况之一：
与SRB有关、与DRB有关和与小区组有关。
可选的，当所述通信设备30为终端，且所述新协议层实体与小区组有关时，所述通信设备30还包括：
第一接收模块，用于从网络设备接收小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
第一处理模块，用于当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；而当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或发起重配过程；
或者，
当所述通信设备30为网络设备，且所述新协议层实体与小区组有关时，所述通信设备30还包括：
第一获取模块，用于获取小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
第二处理模块，用于当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；而当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或重配。
可选的，当所述通信设备30为终端，且所述新协议层实体与SRB或DRB有关时，所述通信设备30还包括：
第二接收模块，用于从网络设备接收SRB的配置信息，或DRB的配置信息；
第三处理模块，用于根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应 DRB对应的新协议层实体；
或者，当所述通信设备30为网络设备，且所述新协议层实体与SRB或DRB有关时，所述通信设备30还包括：
第二获取模块，用于获取SRB的配置信息，或DRB的配置信息；
第四处理模块，用于根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体。
可选的，当所述通信设备30为终端时，所述通信设备30还包括：
第三接收模块，用于从网络设备接收所述RRC分段功能的激活信令，或去激活信令；
第五处理模块，用于根据所述激活信令，对所述RRC分段功能进行激活处理；或，根据所述去激活信令，对所述RRC分段功能进行去激活处理。
可选的，所述RRC分段功能的激活条件为如下至少一项：
网络设备接收到终端上报的部分能力信息；
网络设备接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过分组数据汇聚层协议PDCP服务数据单元SDU大小的最大值；
网络设备接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能激活请求消息。
可选的，所述RRC分段功能的去激活条件为如下至少一项：
网络设备预设时间内未接收到终端上报部分能力信息；
网络设备预设时间内未接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备预设时间内未接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能去激活请求消息；
网络设备预设时间内接收到的终端的RRC消息的大小均小于第一预设门限值。
可选的，所述激活信令采用如下形式中的如下至少一项：
MAC CE、DCI和RRC消息；
所述去激活信令采用如下形式中的如下至少一项：
MAC CE、DCI和RRC消息。
可选的，当承载所述RRC分段功能的RRC层实体或新协议层实体与SRB有关时，所述激活信令中包括相应SRB的激活指示信息，所述去激活信令中包括相应SRB的去激活指示信息；
或者，当承载所述RRC分段功能的RRC层实体或新协议层实体与DRB有关时，所述激活信令中包括相应DRB的激活指示信息，所述去激活信令中包括相应DRB的去激活指示信息；
或者，当承载所述RRC分段功能的RRC层实体或新协议层实体与小区组有关时，所述激活信令中包括相应MCG和/或SCG的激活指示信息，所述去激活信令中包括相应MCG和/或SCG的去激活指示信息；
或者，当所述RRC分段功能针对预设RRC消息生效时，所述激活信令中包括用于指示所述激活信令所针对的RRC消息的指示信息，所述去激活信令中包括用于指示所述去激活信令所针对的RRC消息的指示信息。
可选的，当所述通信设备30为终端时，所述RRC分段功能针对如下RRC消息中的至少一项：
所携带的数据部分的大小大于第二预设门限值的RRC消息；
用于上报终端能力的RRC消息；
或者，当所述通信设备30为网络设备时，所述RRC分段功能针对如下RRC消息中的至少一项：
所携带的数据部分的大小大于第三预设门限值的RRC消息；
RRC重配消息；
携带有CSI-RS相关的测量配置信息的RRC消息；
携带有RACH配置信息的RRC消息。
参见图4所示，本公开实施例还提供了一种通信设备40，所述通信设备40为接收方，所述通信设备40可为终端和网络设备中的任意一个，所述通信设备40可包括：
第四接收模块41，用于从通信设备发送方接收多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
重组模块42，用于利用所述通信设备40的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
本公开实施例中，可以实现对RRC消息的分段，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
本公开实施例中，可选的，当所述通信设备40为终端时，所述新协议层实体为如下情况之一：
与SRB有关、与DRB有关、与终端有关和与小区组有关；
或者，当所述通信设备40为网络设备时，所述新协议层实体为如下情况之一：
与SRB有关、与DRB有关和与小区组有关。
可选的，当所述通信设备40为终端，且所述新协议层实体与小区组有关时，所述通信设备40还包括：
第五接收模块，用于从网络设备接收小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
第六处理模块，用于当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；而当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或发起重配过程；
或者，
当所述通信设备40为网络设备，且所述新协议层实体与小区组有关时，所述通信设备40还包括：
第三获取模块，用于获取小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
第七处理模块，用于当所述新协议层实体尚未建立时，根据所述新协议 层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；而当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或重配。
可选的，当所述通信设备40为终端，且所述新协议层实体与SRB或DRB有关时，所述通信设备40还包括：
第六接收模块，用于从网络设备接收SRB的配置信息，或DRB的配置信息；
第八处理模块，用于根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体；
或者，
当所述通信设备40为网络设备，且所述新协议层实体与SRB或DRB有关时，所述通信设备40还包括：
第四获取模块，用于获取SRB的配置信息，或DRB的配置信息；
第九处理模块，用于根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体。
可选的，当所述通信设备40为终端时，所述通信设备40还包括：
第七接收模块，用于从网络设备接收所述RRC重组功能的激活信令，或去激活信令；
第十处理模块，用于根据所述激活信令，对所述RRC重组功能进行激活处理；或，根据所述去激活信令，对所述RRC重组功能进行去激活处理。
可选的，当承载所述RRC重组功能的RRC层实体或新协议层实体与SRB有关时，所述激活信令中包括相应SRB的激活指示信息，所述去激活信令中包括相应SRB的去激活指示信息；
或者，当承载所述RRC重组功能的RRC层实体或新协议层实体与DRB有关时，所述激活信令中包括相应DRB的激活指示信息，所述去激活信令中包括相应DRB的去激活指示信息；
或者，当承载所述RRC重组功能的RRC层实体或新协议层实体与小区 组有关时，所述激活信令中包括相应MCG和/或SCG的激活指示信息，所述去激活信令中包括相应MCG和/或SCG的去激活指示信息。
可选的，当所述通信设备40为网络设备时，所述通信设备40还可包括：
第二发送模块，用于向终端发送激活信令，或去激活信令；
其中，所述激活信令用于指示激活所述终端的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能；
所述去激活信令用于指示去激活所述终端的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能。
进一步可选的，所述RRC分段功能的激活条件为如下至少一项：
网络设备接收到终端上报的部分能力信息；
网络设备接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能激活请求消息。
进一步可选的，所述RRC分段功能的去激活条件为如下至少一项：
网络设备预设时间内未接收到终端上报部分能力信息；
网络设备预设时间内未接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备预设时间内未接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
网络设备接收到终端发送的RRC分段功能去激活请求消息；
网络设备预设时间内接收到的终端的RRC消息的大小均小于第一预设门限值。
此外，本公开实施例还提供一种通信设备，包括处理器，存储器，存储在所述存储器上并可在所述处理器上运行的程序，其中，所述程序被所述处理器执行时实现上述数据传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。可选的，所述通信设备可为发送方，或者接收方，也可为终端，或者网络设备。
具体的，图5为实现本公开各个实施例的一种终端的硬件结构示意图，终端500包括但不限于：射频单元501、网络模块502、音频输出单元503、输入单元504、传感器505、显示单元506、用户输入单元507、接口单元508、存储器509、处理器510、以及电源511等部件。本领域技术人员可以理解，图5中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
可选的，当终端500为发送方时，处理器510，用于利用所述终端500的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；所述多个RRC分段中的每个RRC分段携带有所述终端500生成的RRC消息中的部分数据内容；
射频单元501，用于将所述多个RRC分段发送给网络设备。
可选的，当终端500为接收方时，射频单元501，用于从网络设备接收多个RRC分段；所述多个RRC分段中的每个RRC分段携带有所述网络设备生成的RRC消息中的部分数据内容；利用所述终端500的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
本公开实施例中，可以实现对RRC消息的分段，从而在RRC消息过大时，可以适配PDCP SDU，减小对RRC缓冲器的需求，完成RRC消息的传输，保证相应通信过程顺利进行。
应理解的是，本公开实施例中，射频单元501可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器510处理；另外，将上行的数据发送给基站。通常，射频单元501包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元501还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块502为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元503可以将射频单元501或网络模块502接收的或者在存 储器509中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元503还可以提供与终端500执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元503包括扬声器、蜂鸣器以及受话器等。
输入单元504用于接收音频或视频信号。输入单元504可以包括图形处理器(Graphics Processing Unit，GPU)5041和麦克风5042，图形处理器5041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元506上。经图形处理器5041处理后的图像帧可以存储在存储器509(或其它存储介质)中或者经由射频单元501或网络模块502进行发送。麦克风5042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元501发送到移动通信基站的格式输出。
终端500还包括至少一种传感器505，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板5061的亮度，接近传感器可在终端500移动到耳边时，关闭显示面板5061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器505还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元506用于显示由用户输入的信息或提供给用户的信息。显示单元506可包括显示面板5061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板5061。
用户输入单元507可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元507包括触控面板5071以及其他输入设备5072。触控面板5071，也称为触摸屏， 可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板5071上或在触控面板5071附近的操作)。触控面板5071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器510，接收处理器510发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板5071。除了触控面板5071，用户输入单元507还可以包括其他输入设备5072。具体地，其他输入设备5072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板5071可覆盖在显示面板5061上，当触控面板5071检测到在其上或附近的触摸操作后，传送给处理器510以确定触摸事件的类型，随后处理器510根据触摸事件的类型在显示面板5061上提供相应的视觉输出。虽然在图5中，触控面板5071与显示面板5061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板5071与显示面板5061集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元508为外部装置与终端500连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元508可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端500内的一个或多个元件或者可以用于在终端500和外部装置之间传输数据。
存储器509可用于存储软件程序以及各种数据。存储器509可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器509可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器510是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器509内的软件程序和/或模块，以及调用存储在存储器509内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器510可包括一个或多个处理单元；可选的，处理器510可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器510中。
终端500还可以包括给各个部件供电的电源511(比如电池)，可选的，电源511可以通过电源管理系统与处理器510逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端500还可包括一些未示出的功能模块，在此不再赘述。
具体的，图6为实现本公开各个实施例的一种网络设备的硬件结构示意图，所述网络设备60包括但不限于：总线61、收发机62、天线63、总线接口64、处理器65和存储器66。
在本公开实施例中，所述网络设备60还包括：存储在存储器66上并可在处理器65上运行的程序。
可选的，当网络设备60为发送方时，程序被处理器65执行时实现以下步骤：
利用利用网络设备60的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；所述多个RRC分段中的每个RRC分段携带有网络设备60生成的RRC消息中的部分数据内容；将所述多个RRC分段发送给终端。
可选的，当网络设备60为接收方时，程序被处理器65执行时实现以下步骤：
从终端接收多个RRC分段；所述多个RRC分段中的每个RRC分段携带有所述终端生成的RRC消息中的部分数据内容；利用网络设备60的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
收发机62，用于在处理器65的控制下接收和发送数据。
在图6中，总线架构(用总线61来代表)，总线61可以包括任意数量的互联的总线和桥，总线61将包括由处理器65代表的一个或多个处理器和存储器66代表的存储器的各种电路链接在一起。总线61还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口64在总线61和收发机62之间提供接口。收发机62可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器65处理的数据通过天线63在无线介质上进行传输，进一步，天线63还接收数据并将数据传送给处理器65。
处理器65负责管理总线61和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器66可以被用于存储处理器65在执行操作时所使用的数据。
可选的，处理器65可以是CPU、ASIC、FPGA或CPLD。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有程序，该程序被处理器执行时实现上述数据传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，该计算机可读存储介质，例如为只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献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(如ROM/RAM、磁碟、光 盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (23)

  1. 一种数据传输方法，应用于通信设备发送方，所述通信设备发送方为终端和网络设备中的一个，其中，所述方法包括：
    利用所述通信设备发送方的无线资源控制RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
    将所述多个RRC分段发送给通信设备接收方。
  2. 根据权利要求1所述的方法，其中，当所述通信设备发送方为终端时，所述新协议层实体为如下情况之一：
    与信令无线承载SRB有关、与数据承载DRB有关、与终端有关和与小区组有关；
    或者，当所述通信设备发送方为网络设备时，所述新协议层实体为如下情况之一：
    与SRB有关、与DRB有关和与小区组有关。
  3. 根据权利要求2所述的方法，其中，当所述通信设备发送方为终端，且所述新协议层实体与小区组有关时，所述方法还包括：
    从网络设备接收小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
    当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立主小区组MCG和/或辅小区组SCG对应的新协议层实体；
    当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或发起重配过程；
    或者，
    当所述通信设备发送方为网络设备，且所述新协议层实体与小区组有关时，所述方法还包括：
    获取小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
    当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；
    当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或重配。
  4. 根据权利要求2所述的方法，其中，当所述通信设备发送方为终端，且所述新协议层实体与SRB或DRB有关时，所述方法还包括：
    从网络设备接收SRB的配置信息，或DRB的配置信息；
    根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体；
    或者，
    当所述通信设备发送方为网络设备，且所述新协议层实体与SRB或DRB有关时，所述方法还包括：
    获取SRB的配置信息，或DRB的配置信息；
    根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体。
  5. 根据权利要求1所述的方法，其中，当所述通信设备发送方为终端时，所述方法还包括：
    从网络设备接收所述RRC分段功能的激活信令，或去激活信令；
    根据所述激活信令，对所述RRC分段功能进行激活处理；或，根据所述去激活信令，对所述RRC分段功能进行去激活处理。
  6. 根据权利要求5所述的方法，其中，所述RRC分段功能的激活条件为如下至少一项：
    网络设备接收到终端上报的部分能力信息；
    网络设备接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过分组数据汇聚层协议PDCP服务数据单元SDU大小的最大值；
    网络设备接收到终端发送的辅助信息，所述辅助信息指示所述终端的能 力信息超过PDCP SDU大小的最大值；
    网络设备接收到终端发送的RRC分段功能激活请求消息。
  7. 根据权利要求5所述的方法，其中，所述RRC分段功能的去激活条件为如下至少一项：
    网络设备预设时间内未接收到终端上报部分能力信息；
    网络设备预设时间内未接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
    网络设备预设时间内未接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
    网络设备接收到终端发送的RRC分段功能去激活请求消息；
    网络设备预设时间内接收到的终端的RRC消息的大小均小于第一预设门限值。
  8. 根据权利要求5所述的方法，其中，所述激活信令采用如下形式中的至少一项：
    媒体介入控制层MAC控制单元CE、下行控制信息DCI和RRC消息；
    所述去激活信令采用如下形式中的至少一项：
    MAC CE、DCI和RRC消息。
  9. 根据权利要求5所述的方法，其中，当承载所述RRC分段功能的RRC层实体或新协议层实体与SRB有关时，所述激活信令中包括相应SRB的激活指示信息，所述去激活信令中包括相应SRB的去激活指示信息；
    或者，当承载所述RRC分段功能的RRC层实体或新协议层实体与DRB有关时，所述激活信令中包括相应DRB的激活指示信息，所述去激活信令中包括相应DRB的去激活指示信息；
    或者，当承载所述RRC分段功能的RRC层实体或新协议层实体与小区组有关时，所述激活信令中包括相应MCG和/或SCG的激活指示信息，所述去激活信令中包括相应MCG和/或SCG的去激活指示信息；
    或者，当所述RRC分段功能针对预设RRC消息生效时，所述激活信令中包括用于指示所述激活信令所针对的RRC消息的指示信息，所述去激活信令中包括用于指示所述去激活信令所针对的RRC消息的指示信息。
  10. 根据权利要求1所述的方法，其中，当所述通信设备发送方为终端时，所述RRC分段功能针对如下RRC消息中的至少一项：
    所携带的数据部分的大小大于第二预设门限值的RRC消息；
    用于上报终端能力的RRC消息；
    或者，
    当所述通信设备发送方为网络设备时，所述RRC分段功能针对如下RRC消息中的至少一项：
    所携带的数据部分的大小大于第三预设门限值的RRC消息；
    RRC重配消息；
    携带有信道状态信息参考信号CSI-RS相关的测量配置信息的RRC消息；
    携带有随机接入信道RACH配置信息的RRC消息。
  11. 一种数据传输方法，应用于通信设备接收方，所述通信设备接收方为终端和网络设备中的一个，其中，所述方法包括：
    从通信设备发送方接收多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
    利用所述通信设备接收方的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
  12. 根据权利要求11所述的方法，其中，当所述通信设备接收方为终端时，所述新协议层实体为如下情况之一：
    与SRB有关、与DRB有关、与终端有关和与小区组有关；
    或者，当所述通信设备接收方为网络设备时，所述新协议层实体为如下情况之一：
    与SRB有关、与DRB有关和与小区组有关。
  13. 根据权利要求11所述的方法，其中，当所述通信设备接收方为终端，且所述新协议层实体与小区组有关时，所述方法还包括：
    从网络设备接收小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
    当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信 息，建立MCG和/或SCG对应的新协议层实体；
    当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或发起重配过程；
    或者，
    当所述通信设备接收方为网络设备，且所述新协议层实体与小区组有关时，所述方法还包括：
    获取小区组配置信息；其中，所述小区组配置信息中包括新协议层实体的配置相关信息；
    当所述新协议层实体尚未建立时，根据所述新协议层实体的配置相关信息，建立MCG和/或SCG对应的新协议层实体；
    当所述新协议层实体已经建立时，根据所述新协议层实体的配置相关信息，对所述新协议层实体进行重置、释放或重配。
  14. 根据权利要求13所述的方法，其中，当所述通信设备接收方为终端，且所述新协议层实体与SRB或DRB有关时，所述方法还包括：
    从网络设备接收SRB的配置信息，或DRB的配置信息；
    根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体；
    或者，
    当所述通信设备接收方为网络设备，且所述新协议层实体与SRB或DRB有关时，所述方法还包括：
    获取SRB的配置信息，或DRB的配置信息；
    根据所述SRB的配置信息，建立和/或释放相应SRB对应的新协议层实体；或，根据所述DRB的配置信息，建立和/或释放相应DRB对应的新协议层实体。
  15. 根据权利要求11所述的方法，其中，当所述通信设备接收方为终端时，所述方法还包括：
    从网络设备接收所述RRC重组功能的激活信令，或去激活信令；
    根据所述激活信令，对所述RRC重组功能进行激活处理；或，根据所述 去激活信令，对所述RRC重组功能进行去激活处理。
  16. 根据权利要求15所述的方法，其中，当承载所述RRC重组功能的RRC层实体或新协议层实体与SRB有关时，所述激活信令中包括相应SRB的激活指示信息，所述去激活信令中包括相应SRB的去激活指示信息；
    或者，当承载所述RRC重组功能的RRC层实体或新协议层实体与DRB有关时，所述激活信令中包括相应DRB的激活指示信息，所述去激活信令中包括相应DRB的去激活指示信息；
    或者，当承载所述RRC重组功能的RRC层实体或新协议层实体与小区组有关时，所述激活信令中包括相应MCG和/或SCG的激活指示信息，所述去激活信令中包括相应MCG和/或SCG的去激活指示信息。
  17. 根据权利要求11所述的方法，其中，当所述通信设备接收方为网络设备时，所述方法还包括：
    向终端发送激活信令，或去激活信令；
    其中，所述激活信令用于指示激活所述终端的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能；
    所述去激活信令用于指示去激活所述终端的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能。
  18. 根据权利要求17所述的方法，其中，所述RRC分段功能的激活条件为如下至少一项：
    网络设备接收到终端上报的部分能力信息；
    网络设备接收到终端发送的能力相关信息，所述能力相关信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
    网络设备接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
    网络设备接收到终端发送的RRC分段功能激活请求消息。
  19. 根据权利要求17所述的方法，其中，所述RRC分段功能的去激活条件为如下至少一项：
    网络设备预设时间内未接收到终端上报部分能力信息；
    网络设备预设时间内未接收到终端发送的能力相关信息，所述能力相关 信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
    网络设备预设时间内未接收到终端发送的辅助信息，所述辅助信息指示所述终端的能力信息超过PDCP SDU大小的最大值；
    网络设备接收到终端发送的RRC分段功能去激活请求消息；
    网络设备预设时间内接收到的终端的RRC消息的大小均小于第一预设门限值。
  20. 一种通信设备，其中，所述通信设备为发送方，所述通信设备为终端和网络设备中的一个，所述通信设备包括：
    生成模块，用于利用所述通信设备的RRC层实体的RRC分段功能或新协议层实体的RRC分段功能，生成多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备生成的RRC消息中的部分数据内容；
    发送模块，用于将所述多个RRC分段发送给通信设备接收方。
  21. 一种通信设备，其中，所述通信设备为接收方，所述通信设备为终端和网络设备中的一个，所述通信设备包括：
    第四接收模块，用于从通信设备发送方接收多个RRC分段；其中，所述多个RRC分段中的每个RRC分段携带有所述通信设备发送方生成的RRC消息中的部分数据内容；
    重组模块，用于利用所述通信设备的RRC层实体的RRC重组功能或新协议层实体的RRC重组功能，对所述多个RRC分段进行重组，得到完整的RRC消息。
  22. 一种通信设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其中，所述程序被所述处理器执行时实现如权利要求1至19中任一项所述的数据传输方法的步骤。
  23. 一种计算机可读存储介质，其上存储有程序，其中，所述程序被处理器执行时实现如权利要求1至19中任一项所述的数据传输方法的步骤。
PCT/CN2019/106678 2018-09-27 2019-09-19 数据传输方法及通信设备 WO2020063444A1 (zh)

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