CN114600551A - RRC message processing method and device, user equipment and network equipment - Google Patents

RRC message processing method and device, user equipment and network equipment Download PDF

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Publication number
CN114600551A
CN114600551A CN202080074966.3A CN202080074966A CN114600551A CN 114600551 A CN114600551 A CN 114600551A CN 202080074966 A CN202080074966 A CN 202080074966A CN 114600551 A CN114600551 A CN 114600551A
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China
Prior art keywords
message
rrc
user equipment
segmentation
rrc message
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CN202080074966.3A
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Chinese (zh)
Inventor
王淑坤
杨宁
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Abstract

The embodiment of the application provides a method and a device for processing an RRC message, user equipment and network equipment, wherein the user equipment is in communication connection with the network equipment, the user equipment receives a segmented message of the RRC message from the network equipment, starts a first timer, and decodes the RRC message according to all the segmented messages of the received RRC message if the segmented message of the RRC message is the last segmented message of the RRC message, so that the reliability of the user equipment for receiving the RRC message sent by the network equipment can be improved.

Description

RRC message processing method and device, user equipment and network equipment Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for processing an RRC message, a user equipment, and a network device.
Background
In a New Radio (NR) system, due to a partial Bandwidth (BWP), a configuration of a Channel state indication Reference Signal (CSI-RS), etc., a Downlink (DL) Radio Resource Control (RRC) size is very large.
The constraint size of the NR Packet Data Convergence Protocol (PDCP) for an incoming PDCP Service Data Unit (SDU) is 9000 bytes. In order to support the support of more than 9000bytes of RRC Packet Data Unit (PDU), fragmentation for DL messages such as RRC Reconfiguration (Reconfiguration) message and RRC recovery (Resume) message is supported in R16.
A User Equipment (UE) receives a complete message and receives multiple segmented messages of a message, and air interface delays are different, which may result in an increased decoding failure rate after the UE receives the multiple segmented messages.
Disclosure of Invention
The embodiment of the application provides a method and a device for processing an RRC message, user equipment and network equipment.
In a first aspect, an embodiment of the present application provides a method for selecting a random access type, including:
the user equipment receives a segmented message of an RRC message from the network equipment and starts a first timer;
and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the received segmentation messages of the RRC message.
In a second aspect, an embodiment of the present application provides a method for processing an RRC message, including:
the network equipment sends a segmentation message of an RRC message to user equipment, wherein the segmentation message of the RRC message is used for the user equipment to perform the following operations: and if the segmentation message of the RRC message is the last segmentation message of the RRC message, decoding the RRC message according to all the received segmentation messages of the RRC message.
In a third aspect, an embodiment of the present application provides an apparatus for processing an RRC message, which is applied to a user equipment, and the apparatus includes a processing unit and a communication unit, where,
the communication unit is used for the user equipment to receive the segmented message of the RRC message from the network equipment and start a first timer;
the processing unit is configured to decode the RRC message according to all received segment messages of the RRC message if the segment message of the RRC message is the last segment message of the RRC message.
In a fourth aspect, an embodiment of the present application provides an apparatus for processing an RRC message, where the apparatus is applied to a network device, the apparatus includes a processing unit and a communication unit, where,
the processing unit is configured to control the communication unit to send a segmentation message of an RRC message to a user equipment, where the segmentation message of the RRC message is used for the user equipment to perform the following operations: and if the segmentation message of the RRC message is the last segmentation message of the RRC message, decoding the RRC message according to all the received segmentation messages of the RRC message.
In a fifth aspect, embodiments of the present application provide a user equipment, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the steps of any of the methods of the first aspect of the embodiments of the present application.
In a sixth aspect, embodiments of the present application provide a network device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the steps of any of the methods of the second aspect of the embodiments of the present application.
In a seventh aspect, an embodiment of the present application provides a chip, including: and the processor is used for calling and running the computer program from the memory so that the device provided with the chip executes part or all of the steps described in the method of any one of the first aspect and the second aspect of the embodiment of the application.
In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps described in any one of the methods of the first aspect or the second aspect of the present application.
In a ninth aspect, embodiments of the present application provide a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in any of the methods of the first or second aspects of the embodiments of the present application. The computer program may be a software installation package.
It can be seen that, in the embodiment of the present application, the user equipment is in communication connection with the network equipment, the user equipment receives the segmentation message of the RRC message from the network equipment, starts the first timer, and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the segmentation messages of the received RRC message, so that the reliability of the user equipment receiving the RRC message sent by the network equipment can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;
fig. 2A is a flowchart illustrating a method for processing an RRC message according to an embodiment of the present application;
fig. 2B is a flowchart illustrating a method for processing an RRC reconfiguration message according to an embodiment of the present application;
fig. 2C is a flowchart illustrating a method for processing an RRC recovery message according to an embodiment of the present application;
fig. 2D is a flowchart illustrating another RRC recovery message processing method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present application;
fig. 5 is a block diagram illustrating functional units of an apparatus for processing an RRC message according to an embodiment of the present application;
fig. 6 is a block diagram illustrating functional units of another apparatus for processing an RRC message according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
The main application scenarios of 5G are: enhanced mobile ultra-wideband (eMBB), low-latency and high-reliability communications (URLLC), and massive machine type communications (mtc).
The eMBB targets users for multimedia content, services, and data, and its demand is growing very rapidly. The eMBBs may be deployed in different scenarios, such as indoor, urban, rural, etc., and the capabilities and requirements thereof may vary greatly. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety, and the like. The characteristics of mtc include: high connection density, small data volume, insensitive time delay service, low cost and long service life of the module, etc.
When NR is deployed early, complete NR coverage is difficult to obtain, so typical network coverage is Long Term Evolution (LTE) coverage mode of wide area and islanding coverage mode of NR. A large amount of LTE is deployed below 6GHz, and the spectrum below 6GHz available for 5G is rare. Therefore, the NR needs a spectrum application of more than 6GHz, the coverage of a high frequency band is limited, the signal fading is fast, and a tightly interconnected working mode between LTE and NR is provided in order to protect the LTE investment of a mobile operator in the early stage.
In the NR system, the size of DL RRC is very large due to BWP, CSI-RS, etc. configuration. And the constraint size of the NR PDC P for the input PDCP SDU is 9000 bytes. In order to support the support of RRC PDUs larger than 9000bytes, fragmentation transmission for DL messages is supported in R16, and the supported DL message fragmentation messages include RRC Reconfiguration (Reconfiguration) messages and RRC recovery (Resume) messages, for example. A User Equipment (UE) receives a complete message and receives multiple segmented messages of a message, and air interface delays are different, which may result in an increased decoding failure rate after the UE receives the multiple segmented messages.
In view of the above problem, an embodiment of the present application provides a method for processing an RRC message, which is applied to a communication system, please refer to fig. 1, where fig. 1 is a schematic diagram of a communication system architecture provided in the embodiment of the present application, and the communication system includes a network device and a terminal device. As shown in fig. 1, a network device may communicate with a terminal device. The communication system may be a global system for mobile Communication (CSM), a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a Worldwide Interoperability for Microwave Access (WiMAX) system, an LTE system, a 5G communication system (e.g., NR), a communication system in which a plurality of communication technologies are merged (e.g., a communication system in which LTE technology and NR technology are merged), or a communication system in which a subsequent evolution progresses. The form and number of the network devices and the terminal devices shown in fig. 1 are only for example and do not constitute a limitation to the embodiments of the present application. Furthermore, the user devices described in embodiments of the present application may include various handheld devices with wireless communication capabilities, in-vehicle devices, wearable devices (e.g., smartwatches, smartbands, pedometers, etc.), computing devices or other processing devices connected to a wireless modem, and so forth. For convenience of description, the above-mentioned devices are collectively referred to as user equipment. The network device described in the embodiments of the present application includes a base station or a core network device.
Referring to fig. 2A, fig. 2A is a schematic flowchart of a method for processing an RRC message according to an embodiment of the present application, where the method includes:
in step 201, the network device sends a segment message of the RRC message to the user equipment.
The RRC message comprises an RRC recovery message or an RRC reconfiguration message, a segmented message of the RRC message carries first indication information, and the first indication information is used for indicating the message name, the transaction identifier or the message type of the RRC message.
Optionally, in the LTE system, the RRC message may further include an RRC connection recovery message or an RRC connection reconfiguration message.
In a specific implementation, considering that there is an RRC PDU greater than 9000bytes, the network device may divide the RRC message into a plurality of segmented messages and perform segmented transmission to the user equipment.
Step 202, receiving a segment message of an RRC message from a network device, and starting a first timer.
In this embodiment, the ue may receive a segment message of an RRC message transmitted by the network device.
The first timer may be configured to time a plurality of segmented messages of the RRC message sent by the receiving network device, control the user equipment to receive all the segmented messages of the RRC message within a duration of the first timer, and indicate that the user equipment fails to receive the RRC message if the user equipment does not receive all the segmented messages of the RRC message within the duration of the first timer.
Step 203, if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the received segmentation messages of the RRC message.
In a specific implementation, the first indication information carried in the segment message of the RRC message may indicate that the segment message is the last segment message of the RRC message, and if the segment message of the RRC message is the last segment message of the RRC message, it indicates that the user equipment receives all segment messages of the RRC message, and further, the RRC message may be decoded according to all segment messages of the received RRC message.
It can be seen that, in the embodiment of the present application, the user equipment is in communication connection with the network equipment, the user equipment receives the segmentation message of the RRC message from the network equipment, starts the first timer, and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the segmentation messages of the received RRC message, so that the reliability of the user equipment receiving the RRC message sent by the network equipment can be improved.
In one possible example, the method may further comprise the steps of:
and if the segmentation message of the RRC message is the first segmentation message of the RRC message, or the segmentation message of the RRC message is the first received segmentation message of the RRC message, the user equipment executes the operation of starting the first timer.
In this embodiment, the RRC message may be an RRC reconfiguration message or an RRC recovery message.
In this embodiment of the present application, the network device divides the RRC message into a plurality of segmented messages, and the plurality of segmented messages are arranged in sequence, so that the user equipment can start the first timer after receiving a first segmented message of the RRC message.
Or, if the network device sends the first segmented message of the RRC message and then sends another segmented message of the RRC message, and if the another segmented message reaches the user equipment earlier than the first segmented message of the RRC message, the user equipment may determine the first received segmented message of the RRC message from among the plurality of segmented messages of the RRC message, so that the user equipment may start the first timer after the first segmented message of the RRC message is received.
In this possible example, when the first timer expires, if the user equipment does not receive all the segmentation messages of the RRC message, or if the user equipment receives all the segmentation messages of the RRC message but does not successfully decode the RRC message, the user equipment discards all the segmentation messages of the RRC message.
In a specific implementation, when the first timer expires, if the ue does not receive all the segmentation messages of the RRC message, it indicates that the ue fails to receive the RRC message, and thus the ue may discard all the segmentation messages of the RRC message.
If the user equipment receives all the segmented messages of the RRC message but fails to decode the RRC message, the user equipment may discard all the segmented messages of the RRC message.
In a possible example, if the segmentation message of the RRC message is the segmentation message of the RRC reconfiguration message in the current serving cell, the ue searches for a target cell, initiates an RRC reconnection procedure if the target cell is found, and switches the ue to an idle state if the target cell is not found.
Specifically, in a case that the ue does not receive all segment messages of the RRC message, or the ue receives all segment messages of the RRC message but does not successfully decode the RRC message, if the segment message of the RRC message is a segment message of an RRC reconfiguration (reconfiguration) message in a current serving cell, the ue may search for a suitable target cell, and if the suitable target cell is found, initiate an RRC reconnection procedure, and if the target cell is not found, switch the ue to an idle (idle) state.
In one possible example, if the segmentation message of the RRC message is the segmentation message of the RRC recovery message in the current serving cell, the user equipment re-initiates the RRC connection recovery procedure.
Specifically, in a case that the user equipment does not receive all the segment messages of the RRC message, or in a case that the user equipment receives all the segment messages of the RRC message but does not successfully decode the RRC message, if the segment message of the RRC message is a segment message of an RRC recovery (resume) message in the current serving cell, the user equipment re-initiates the RRC connection recovery procedure.
Referring to fig. 2B, fig. 2B is a flowchart illustrating a method for processing an RRC reconfiguration message according to an embodiment of the present application. The UE is in an RRC connected state, the UE receives a segmentation message, such as a DL segmentation message, of an RRC reconfiguration message sent by the network equipment, the segmentation message carries first indication information, when the UE receives a first segmentation message of the RRC reconfiguration message, the UE starts a first timer, the UE continues to wait for receiving the segmentation message of the RRC reconfiguration message until the first indication information carried by the segmentation message indicates that the segmentation message is a last segmentation message of the RRC reconfiguration message, and the UE decodes the RRC reconfiguration message according to all the segmentation messages of the received RRC reconfiguration message. When the first timer is overtime, the user equipment does not receive all the segmentation messages of the RRC reconfiguration message, or the user equipment receives all the segmentation messages of the RRC reconfiguration message but does not successfully decode the RRC reconfiguration message, the user equipment judges that the RRC reconfiguration fails, further, the user equipment searches for a target cell, initiates an RRC reconnection process if the target cell is found, and switches to an idle (idle) state if the target cell is not found.
In one possible example, prior to said receiving the segmented message of the RRC message from the network device, the method may further comprise the steps of:
the user equipment sends an RRC recovery request (resume request) message to the network equipment, wherein the RRC recovery request message is used for indicating that the user equipment starts a second timer, and the RRC recovery request message carries second indication information which is used for indicating the message name, the transaction identifier or the message type of the RRC recovery request message.
In this embodiment, the RRC message may be an RRC recovery (resume) message.
In a specific implementation, the ue may send an RRC recovery request message to the network device, and start a second timer at the same time, where the second timer is used to indicate that the ue has started the second timer, and the second timer may be used to time multiple segment messages of the RRC recovery message sent by the network device, and control the ue to receive all segment messages of the RRC recovery message within a duration of the second timer.
In one possible example, after the receiving the segmented message of the RRC message from the network device, the method further comprises:
if the first indication information is the same as the second indication information, or the first indication information indicates an RRC connection resume message, the user equipment stops the second timer.
Wherein the RRC message may be an RRC recovery message.
In a specific implementation, if the transaction identifier carried in the RRC recovery message is the same as the transaction identifier carried in the RRC recovery request message, or if the message name carried in the RRC recovery message is the same as the message name carried in the RRC recovery request message, or if the message type carried in the RRC recovery message is the same as the message type carried in the RRC recovery request message, the user equipment may stop the second timer after receiving the segment message of the RRC message from the network device.
For example, please refer to fig. 2C, and fig. 2C is a flowchart illustrating a method for processing an RRC recovery message according to an embodiment of the present application. And the user equipment sends an RRC recovery request message to the network equipment and starts a second timer. And the user equipment receives the segmentation message of the RRC recovery message sent by the network equipment, and stops the second timer if the identification information carried in the segmentation message of the RRC recovery message is the same as the identification information carried in the RRC recovery request message. And the user equipment continues to wait for receiving the segmentation message of the RRC recovery message until the indication information carried by the segmentation message of the RRC recovery message indicates that the segmentation message is the last segmentation message of the RRC recovery message, and the user equipment decodes the RRC recovery message according to all the segmentation messages of the RRC recovery message.
In one possible example, before the user equipment sends an RRC recovery request message to the network equipment, the method further comprises:
the user equipment receives an RRC release message from the network equipment and switches the user equipment to an RRC non-activated state according to the RRC release message;
and configuring the second timer according to the RRC release message.
In a specific implementation, the network device may send an RRC Release (Release) message to the user equipment, and instruct the user equipment to switch to an RRC inactive (inactive) state, so that the user equipment switches to the RRC inactive state after receiving the RRC Release message, and configures the second timer according to the RRC Release message, and further, the user equipment may configure the second timer after receiving the RRC Release message sent by the network device, so that the second timer is started when sending an RRC recovery request message to the network device.
Optionally, the duration of the second timer is determined according to a dedicated signaling from the network device, or the duration of the second timer is determined according to a system broadcast of a current serving cell received by the user equipment.
In a specific implementation, when the ue configures the second timer according to the RRC release message, the ue may configure the duration of the second timer according to a dedicated signaling from the network device, or the ue may configure the duration of the second timer according to a system broadcast of the current serving cell.
Optionally, if the ue has configured the second timer according to an indication message from the network device, and/or the ue receives a system broadcast of a current serving cell indicating that the current serving cell supports a downlink segment message function, the duration of the second timer is determined according to a dedicated signaling from the network device;
otherwise, the duration of the second timer is determined according to the system broadcast of the current service cell received by the user equipment.
In a specific implementation, when the ue configures the second timer according to the RRC release message, if the ue satisfies at least one of the following conditions: the second timer has been previously configured according to an indication message from the network device; the system broadcast of the current service cell received by the user equipment indicates that the current service cell supports the downlink segment message function, and the user equipment can configure the duration of the second timer according to a special signaling sent to the user equipment by the network equipment. Otherwise, the ue may configure the duration of the second timer according to the system broadcast of the current serving cell.
For example, please refer to fig. 2D, and fig. 2D is a flowchart illustrating another RRC recovery message processing method according to an embodiment of the present application. The network device sends an RRC release message to the user equipment to indicate the user equipment to enter an inactive state, and the RRC release message is also used for indicating the user equipment to configure the second timer, so that the user equipment can configure the second timer according to the RRC release message. And the user equipment sends an RRC recovery request message to the network equipment and starts a second timer. The duration of the second timer may be determined according to dedicated signaling from the network device, or the duration of the second timer may be determined according to system broadcast of the current serving cell received by the user equipment. And the user equipment continues to wait for receiving the segmentation message of the RRC recovery message until the indication information carried by the segmentation message of the RRC recovery message indicates that the segmentation message is the last segmentation message of the RRC recovery message, and the user equipment decodes the RRC recovery message according to all the segmentation messages of the RRC recovery message.
Therefore, the network device can send the segmentation message of the RRC message to the user equipment, the user equipment receives the segmentation message of the RRC message from the network device, and starts the first timer, and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the segmentation messages of the received RRC message, so that the reliability of the user equipment receiving the RRC message sent by the network device can be improved.
Referring to fig. 3, in accordance with the embodiment shown in fig. 2A, fig. 3 is a schematic structural diagram of a user equipment 300 according to an embodiment of the present application, and as shown in the figure, the user equipment 300 includes a processor 310, a memory 320, a communication interface 330, and one or more programs 321, where the one or more programs 321 are stored in the memory 320 and configured to be executed by the processor 310, and the one or more programs 321 include instructions for performing the following operations.
Receiving a segmented message of an RRC message from network equipment, and starting a first timer;
and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the received segmentation messages of the RRC message.
It can be seen that, in the embodiment of the present application, the user equipment receives the segmentation message of the RRC message from the network device, starts the first timer, and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the segmentation messages of the received RRC message, so that the reliability of the user equipment receiving the RRC message sent by the network device can be improved.
In one possible example, the RRC message includes an RRC recovery message or an RRC reconfiguration message, where a segmented message of the RRC message carries first indication information, and the first indication information is used to indicate a message name, a transaction identifier, or a message type of the RRC message.
In one possible example, the one or more programs 321 further include instructions for:
and if the segmentation message of the RRC message is the first segmentation message of the RRC message, or the segmentation message of the RRC message is the first received segmentation message of the RRC message, executing the operation of starting the first timer.
In one possible example, the one or more programs 321 further include instructions for:
when the first timer is overtime, if the user equipment does not receive all the segmentation messages of the RRC message, or if the user equipment receives all the segmentation messages of the RRC message but does not successfully decode the RRC message, discarding all the segmentation messages of the RRC message.
In one possible example, the one or more programs 321 further include instructions for:
if the segmented message of the RRC message is the segmented message of the RRC reconfiguration message in the current service cell, searching a target cell, if the target cell is searched, initiating an RRC reconnection process, and if the target cell is not searched, switching the user equipment to an idle state.
In one possible example, the one or more programs 321 further include instructions for:
and if the segmented message of the RRC message is the segmented message of the RRC recovery message in the current service cell, the RRC connection recovery process is initiated again.
In one possible example, prior to the receiving the segmented message of the RRC message from the network device, the one or more programs 321 further include instructions for:
sending an RRC recovery request message to the network device, where the RRC recovery request message is used to indicate that the user equipment has started a second timer, and the RRC recovery request message carries second indication information, where the second indication information is used to indicate a message name, a transaction identifier, or a message type of the RRC recovery request message.
In one possible example, after the receiving the segmented message of the RRC message from the network device, the one or more programs 321 further include instructions for:
if the first indication information is the same as the second indication information, or the first indication information indicates an RRC connection resume message, the user equipment stops the second timer.
In one possible example, prior to the user equipment sending an RRC recovery request message to the network device, the one or more programs 321 further include instructions for:
receiving an RRC release message from the network equipment, and switching the user equipment to an RRC non-activated state according to the RRC release message;
and configuring the second timer according to the RRC release message.
In a possible example, the duration of the second timer is determined according to a dedicated signaling from the network device, or the duration of the second timer is determined according to a system broadcast of a current serving cell received by the user equipment.
In a possible example, if the ue has configured the second timer according to the indication message from the network device, and/or the system broadcast of the current serving cell received by the ue indicates that the current serving cell supports the downlink segment message function, the duration of the second timer is determined according to the dedicated signaling from the network device;
otherwise, the duration of the second timer is determined according to the system broadcast of the current service cell received by the user equipment.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a network device 400 according to an embodiment of the present disclosure, and as shown in the figure, the network device 400 includes a processor 410, a memory 420, a communication interface 430, and one or more programs 421, where the one or more programs 421 are stored in the memory 420 and configured to be executed by the processor 410, and the one or more programs 421 include instructions for performing the following operations.
Sending a segmentation message of an RRC message to a user equipment, wherein the segmentation message of the RRC message is used for the user equipment to perform the following operations: and if the segmentation message of the RRC message is the last segmentation message of the RRC message, decoding the RRC message according to all the received segmentation messages of the RRC message.
It can be seen that, in the embodiment of the present application, the network device may send a segment message of an RRC message to the user equipment, the user equipment receives the segment message of the RRC message from the network device, starts the first timer, and if the segment message of the RRC message is the last segment message of the RRC message, the user equipment decodes the RRC message according to all the segment messages of the received RRC message, so that the reliability of the user equipment receiving the RRC message sent by the network device may be improved.
In one possible example, the RRC message includes an RRC recovery message or an RRC reconfiguration message, where a segmented message of the RRC message carries first indication information, and the first indication information is used to indicate a message name, a transaction identifier, or a message type of the RRC message.
In a possible example, if the segmentation message of the RRC message is the first segmentation message of the RRC message, or the segmentation message of the RRC message is the segmentation message of the RRC message received for the first time by the device, the segmentation message of the RRC message is further used to instruct the user equipment to start a first timer when receiving the segmentation message of the RRC message.
In one possible example, prior to the sending the segmented message of the RRC message to the user equipment, the one or more programs 321 further include instructions for:
receiving an RRC recovery request message from the user equipment, wherein the RRC recovery request message is used for indicating that the user equipment starts a second timer, and the RRC recovery request message carries second indication information which is used for indicating a message name, a transaction identifier or a message type of the RRC recovery request message.
In a possible example, after the sending of the segmentation message of the RRC message to the user equipment, if the first indication information and the second indication information are the same, or the first indication information indicates an RRC connection resume message, the first indication information or the second indication information is used to indicate the user equipment to stop the second timer.
In one possible example, prior to the network device receiving the RRC recovery request message from the user equipment, the one or more programs 321 further include instructions for:
sending an RRC release message to the user equipment, wherein the RRC release message is used for indicating the user equipment to switch to an RRC non-activated state and configuring the second timer.
The above-mentioned scheme of the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It will be appreciated that the user equipment, in order to implement the above-described functions, comprises corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the user equipment may be divided into the functional units according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In case of using integrated units, fig. 5 shows a block diagram of a possible functional unit of the RRC message processing apparatus involved in the above embodiments. The apparatus 500 for processing an RRC message is applied to a user equipment, and specifically includes: a processing unit 502 and a communication unit 503. Processing unit 502 is configured to control and manage actions of the user equipment, e.g., processing unit 502 is configured to support the user equipment to perform step 202 in fig. 2A and/or other processes for the techniques described herein. The communication unit 503 is used to support communication between the user equipment and other devices. The user equipment may further comprise a storage unit 501 for storing program codes and data of the user equipment.
The Processing Unit 502 may be a Processor or a controller, such as a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 503 may be a communication interface, a transceiver, a transceiving circuit, etc., and the storage unit 501 may be a memory. When the processing unit 502 is a processor, the communication unit 503 is a communication interface, and the storage unit 501 is a memory, the user equipment according to the embodiment of the present application may be the user equipment shown in fig. 3.
In a specific implementation, the processing unit 502 is configured to perform any step performed by the user equipment in the above method embodiment, and when performing data transmission such as sending, the communication unit 503 is optionally invoked to complete the corresponding operation. The details will be described below.
The communication unit 503 is configured to receive a segmented message of the RRC message from the network device by the user equipment;
the processing unit 502 is configured to start a first timer, and decode the RRC message according to all received segment messages of the RRC message if the segment message of the RRC message is the last segment message of the RRC message.
In one possible example, the RRC message includes an RRC recovery message or an RRC reconfiguration message, and a segment message of the RRC message carries first indication information, where the first indication information is used to indicate a message name, a transaction identifier, or a message type of the RRC message.
In one possible example, the processing unit 502 is further configured to:
and if the segmentation message of the RRC message is the first segmentation message of the RRC message, or the segmentation message of the RRC message is the first received segmentation message of the RRC message, executing the operation of starting the first timer.
In one possible example, the processing unit 502 is further configured to:
when the first timer is overtime, if the user equipment does not receive all the segmentation messages of the RRC message, or if the user equipment receives all the segmentation messages of the RRC message but does not successfully decode the RRC message, discarding all the segmentation messages of the RRC message.
In one possible example, the processing unit 502 is further configured to:
if the segmented message of the RRC message is the segmented message of the RRC reconfiguration message in the current service cell, the user equipment searches a target cell, if the target cell is found, an RRC reconnection process is initiated, and if the target cell is not found, the user equipment is switched to an idle state.
In one possible example, the processing unit 502 is further configured to:
and if the segmented message of the RRC message is the segmented message of the RRC recovery message in the current service cell, the user equipment initiates the RRC connection recovery process again.
In one possible example, before the receiving the segmented message of the RRC message from the network device, the communication unit 503 is further configured to:
sending an RRC recovery request message to the network device, wherein the RRC recovery request message is used for indicating that the user equipment starts a second timer, the RRC recovery request message carries second indication information, and the second indication information is used for indicating the message name, the transaction identifier or the message type of the RRC recovery request message.
In one possible example, the processing unit 502 is further configured to:
if the first indication information is the same as the second indication information, or the first indication information indicates an RRC connection resume message, the user equipment stops the second timer.
In one possible example, before the user equipment sends the RRC recovery request message to the network equipment, the communication unit 503 is further configured to:
receiving an RRC release message from the network equipment, and switching the user equipment to an RRC non-activated state according to the RRC release message;
the processing unit 502 is further configured to:
and configuring the second timer according to the RRC release message.
In a possible example, the duration of the second timer is determined according to a dedicated signaling from the network device, or the duration of the second timer is determined according to a system broadcast of a current serving cell received by the user equipment.
In a possible example, if the ue has configured the second timer according to the indication message from the network device, and/or the ue receives a system broadcast of the current serving cell indicating that the current serving cell supports a downlink segment message function, the duration of the second timer is determined according to dedicated signaling from the network device;
otherwise, the duration of the second timer is determined according to the system broadcast of the current service cell received by the user equipment.
In case of using integrated units, fig. 6 shows a block diagram of a possible functional unit of the RRC message processing apparatus involved in the above embodiments. The processing apparatus 600 of the RRC message is applied to a network device, and the network device includes: a processing unit 602 and a communication unit 603. Processing unit 602 is used to control and manage actions of the network device, e.g., processing unit 502 is used to support the network device to perform step 201 in fig. 2A and/or other processes for the techniques described herein. The communication unit 603 is configured to support communication between the network device and other devices. The network device may further comprise a storage unit 601 for storing program codes and data of the user devices.
The Processing Unit 602 may be a Processor or a controller, such as a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication unit 603 may be a communication interface, a transceiver, a transceiving circuit, etc., and the storage unit 601 may be a memory. When the processing unit 602 is a processor, the communication unit 603 is a communication interface, and the storage unit 601 is a memory, the user equipment according to the embodiment of the present application may be a network device shown in fig. 4.
The processing unit 602 is configured to control the communication unit 603 to send a segmentation message of an RRC message to a user equipment, where the segmentation message of the RRC message is used for the user equipment to perform the following operations: and if the segmentation message of the RRC message is the last segmentation message of the RRC message, decoding the RRC message according to all the received segmentation messages of the RRC message.
In one possible example, the RRC message includes an RRC recovery message or an RRC reconfiguration message, where a segmented message of the RRC message carries first indication information, and the first indication information is used to indicate a message name, a transaction identifier, or a message type of the RRC message.
In a possible example, if the segmentation message of the RRC message is the first segmentation message of the RRC message, or the segmentation message of the RRC message is the segmentation message of the RRC message received for the first time by the device, the segmentation message of the RRC message is further used to instruct the user equipment to start a first timer when receiving the segmentation message of the RRC message.
In one possible example, before the sending the segmentation message of the RRC message to the user equipment, the communication unit 603 is further configured to:
receiving an RRC recovery request message from the user equipment, wherein the RRC recovery request message is used for indicating that the user equipment starts a second timer, and the RRC recovery request message carries second indication information which is used for indicating a message name, a transaction identifier or a message type of the RRC recovery request message.
In a possible example, after the sending of the segmentation message of the RRC message to the user equipment, if the first indication information and the second indication information are the same, or the first indication information indicates an RRC connection resume message, the first indication information or the second indication information is used to indicate the user equipment to stop the second timer.
In one possible example, before the network device receives the RRC recovery request message from the user equipment, the communication unit 603 is further configured to:
sending an RRC release message to the user equipment, wherein the RRC release message is used for indicating the user equipment to switch to an RRC non-activated state and configuring the second timer.
The embodiment of the present application further provides a chip, where the chip includes a processor, configured to call and run a computer program from a memory, so that a device in which the chip is installed performs some or all of the steps described in the user equipment in the above method embodiments.
Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to perform some or all of the steps described in the foregoing method embodiments for a user equipment.
The present application also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the network device in the above method embodiments.
Embodiments of the present application further provide a computer program product, where the computer program product includes a computer program operable to cause a computer to perform some or all of the steps described in the user equipment in the above method embodiments. The computer program product may be a software installation package.
The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash Memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may reside as discrete components in an access network device, a target network device, or a core network device.
Those skilled in the art will appreciate that in one or more of the examples described above, the functionality described in the embodiments of the present application may be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the embodiments of the present application in further detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims (24)

  1. A method for processing a Radio Resource Control (RRC) message, comprising:
    the user equipment receives a segmented message of an RRC message from the network equipment and starts a first timer;
    and if the segmentation message of the RRC message is the last segmentation message of the RRC message, the user equipment decodes the RRC message according to all the received segmentation messages of the RRC message.
  2. The method of claim 1, wherein the RRC message comprises an RRC recovery message or
    And the RRC reconfiguration message, wherein the segmented message of the RRC message carries first indication information, and the first indication information is used for indicating the message name, the transaction identifier or the message type of the RRC message.
  3. The method of claim 2, further comprising:
    and if the segmentation message of the RRC message is the first segmentation message of the RRC message, or the segmentation message of the RRC message is the first received segmentation message of the RRC message, the user equipment executes the operation of starting the first timer.
  4. The method of claim 3, further comprising:
    when the first timer is overtime, if the user equipment does not receive all the segmentation messages of the RRC message, or if the user equipment receives all the segmentation messages of the RRC message but does not successfully decode the RRC message, the user equipment discards all the segmentation messages of the RRC message.
  5. The method of claim 4, further comprising:
    if the segmented message of the RRC message is the segmented message of the RRC reconfiguration message in the current service cell, the user equipment searches for a target cell, if the target cell is found, an RRC reconnection process is initiated, and if the target cell is not found, the user equipment is switched to an idle state.
  6. The method of claim 4, further comprising:
    and if the segmented message of the RRC message is the segmented message of the RRC recovery message in the current service cell, the user equipment initiates the RRC connection recovery process again.
  7. The method of claim 2, wherein prior to said receiving the segmented message of the RRC message from the network device, the method comprises:
    the user equipment sends an RRC recovery request message to the network equipment, wherein the RRC recovery request message is used for indicating that the user equipment starts a second timer, the RRC recovery request message carries second indication information, and the second indication information is used for indicating the message name, the transaction identifier or the message type of the RRC recovery request message.
  8. The method of claim 7, wherein after the receiving the segmented message of the RRC message from the network device, the method further comprises:
    if the first indication information is the same as the second indication information, or the first indication information indicates an RRC connection resume message, the user equipment stops the second timer.
  9. The method according to claim 7 or 8, wherein before the user equipment sends the RRC recovery request message to the network equipment, the method further comprises:
    the user equipment receives an RRC release message from the network equipment and switches the user equipment to an RRC non-activated state according to the RRC release message;
    and configuring the second timer according to the RRC release message.
  10. The method of claim 9, wherein a duration of the second timer is determined according to dedicated signaling from the network device, or wherein a duration of the second timer is determined according to a system broadcast of a current serving cell received by the ue.
  11. The method according to claim 9, wherein if the ue has configured the second timer according to the indication message from the network device, and/or the system broadcast of the current serving cell received by the ue indicates that the current serving cell supports the downlink segment message function, the duration of the second timer is determined according to the dedicated signaling from the network device;
    otherwise, the duration of the second timer is determined according to the system broadcast of the current service cell received by the user equipment.
  12. A method for processing RRC messages, comprising:
    a network device sends a segmentation message of an RRC message to a user equipment, wherein the segmentation message of the RRC message is used for the user equipment to perform the following operations: and if the segmentation message of the RRC message is the last segmentation message of the RRC message, decoding the RRC message according to all the received segmentation messages of the RRC message.
  13. The method of claim 12, wherein the RRC message comprises an RRC recovery message or
    And the RRC reconfiguration message, wherein the segmented message of the RRC message carries first indication information, and the first indication information is used for indicating the message name, the transaction identifier or the message type of the RRC message.
  14. The method of claim 13, wherein if the segmentation message of the RRC message is a first segmentation message of the RRC message, or if the segmentation message of the RRC message is the segmentation message of the RRC message first received by the user equipment, the segmentation message of the RRC message is further used to instruct the user equipment to start a first timer when receiving the segmentation message of the RRC message.
  15. The method according to claim 14, wherein before the sending the segmentation message of the RRC message to the user equipment, the method comprises:
    the network device receives an RRC recovery request message from the user equipment, wherein the RRC recovery request message is used for indicating that the user equipment starts a second timer, the RRC recovery request message carries second indication information, and the second indication information is used for indicating a message name, a transaction identifier or a message type of the RRC recovery request message.
  16. The method of claim 15, wherein after the sending of the segmentation message of the RRC message to the user equipment, if the first indication information and the second indication information are the same or the first indication information indicates an RRC connection recovery message, the first indication information or the second indication information is used to instruct the user equipment to stop the second timer.
  17. The method of claim 15, wherein before the network device receives the RRC recovery request message from the user equipment, the method further comprises:
    and the network equipment sends an RRC release message to the user equipment, wherein the RRC release message is used for indicating the user equipment to be switched to an RRC non-activated state and configuring the second timer.
  18. An apparatus for processing RRC message, applied to a user equipment, the apparatus comprising a processing unit and a communication unit, wherein,
    the communication unit is used for the user equipment to receive the segmented message of the RRC message from the network equipment;
    the processing unit is configured to start a first timer, and decode the RRC message according to all received segment messages of the RRC message if the segment message of the RRC message is the last segment message of the RRC message.
  19. An apparatus for processing RRC message, applied to a network device, the apparatus includes a processing unit and a communication unit, wherein,
    the processing unit is configured to control the communication unit to send a segmentation message of an RRC message to a user equipment, where the segmentation message of the RRC message is used for the user equipment to perform the following operations: and if the segmentation message of the RRC message is the last segmentation message of the RRC message, decoding the RRC message according to all the received segmentation messages of the RRC message.
  20. A user device comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-11.
  21. A network device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 12-17.
  22. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1-11 or 12-17.
  23. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-11 or 12-17.
  24. A computer program for causing a computer to perform the method of any one of claims 1-11 or 12-17.
CN202080074966.3A 2020-01-23 2020-01-23 RRC message processing method and device, user equipment and network equipment Pending CN114600551A (en)

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