WO2019129197A1 - 一种通信方法,设备及其*** - Google Patents
一种通信方法,设备及其*** Download PDFInfo
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- WO2019129197A1 WO2019129197A1 PCT/CN2018/124826 CN2018124826W WO2019129197A1 WO 2019129197 A1 WO2019129197 A1 WO 2019129197A1 CN 2018124826 W CN2018124826 W CN 2018124826W WO 2019129197 A1 WO2019129197 A1 WO 2019129197A1
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- configuration information
- cell group
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/186—Processing of subscriber group data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/085—Access point devices with remote components
Definitions
- the present application relates to the field of communications, and more specifically to a communication method, device, system thereof and the like.
- the base station In a next-generation mobile communication system, such as the 5th generation mobile communication technology (5G) system, the base station is called a gNB or an ng-eNB, wherein the ng-eNB is derived from long term evolution (long term)
- the evolved, LTE) base station (LTE eNB) subsequent evolved base station for convenience of description, the gNB is used herein to represent the base station.
- the system 100 shown in FIG. 1 is a schematic block diagram of a 5G system in which ng-eNB and ng-eNB are between gNB and gNB in a next generation radio access network (NG-RAN). Between, and between the gNB and the ng-eNB are interconnected through the Xn interface.
- NG-RAN next generation radio access network
- the gNB and the 5G core network (5G core, 5GC) devices are interconnected through the NG interface, and the ng-eNB and the 5GC device are interconnected through the NG interface.
- the 5GC device may be an access and mobility management function (AMF) or a user plane function (UPF).
- AMF access and mobility management function
- UPF user plane function
- the AMF is mainly responsible for access management functions
- the UPF is mainly responsible for the session ( Session) management aspects.
- the base station usually includes a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, and a radio link control ( A radio link control (RLC) layer, a media access control (MAC) layer, and a logical layer (PHY) layer such as a physical layer (PHY).
- RRC radio resource control
- SDAP service data adaptation protocol
- PDCP packet data convergence protocol
- RLC radio link control
- MAC media access control
- PHY logical layer
- Next generation base stations e.g., gNBs
- 2 is a schematic block diagram of a 5G system including a 5GC and an NG-RAN.
- the base station gNB can be a centralized unit (CU) and a distributed unit (DU).
- the CU and DU architecture can be understood as splitting the functions of the base stations in the traditional access network.
- Some functions of the traditional base station are deployed in the CU, and other functions are deployed in the DU. Multiple DUs can share one CU to save costs. It is easy to expand the network, and the information exchange between the CU and the DU through the F1 interface. For a gBN composed of a CU and a DU, it is a base station for other external network elements.
- the centralized unit CU can also be divided into a CU control plane (CU-CP) and a CU user plane (CU user). Plane, CU-CP).
- the CU-CP is responsible for the control plane function, mainly including the RRC and PDCP control plane parts (PDCP-C).
- the PDCP-C is mainly responsible for the encryption and decryption of the control plane data, integrity protection, and data transmission; the CU-UP is responsible for the user.
- the surface function mainly includes SDAP and PDCP-U.
- the SDAP is mainly responsible for processing the data of the core network and mapping the flow to the radio bearer.
- the PDCP-U is mainly responsible for encryption and decryption of the data plane, integrity protection, and header compression. , serial number maintenance, and data transfer.
- the CU-CP and the CU-UP are connected through the E1 interface, the CU-CP represents the gNB connected to the core network through the Ng interface, the CU-CP is connected to the DU through the F1-C (F1 control plane) interface, and the CU-UP passes the F1- U (F1 user plane) interface and DU connection.
- F1-C F1 control plane
- the CU-UP passes the F1- U (F1 user plane) interface and DU connection.
- Yet another design is that both PDCP-C and PDCP-C are at CU-UP and RRC is at CU-CP (not shown in Figure 3).
- a dual connectivity (DC) scenario when a base station with a CU and a DU architecture is used as a secondary node (SN), the DU cannot correctly parse the secondary cell group (SCG) sent by the CU to the DU.
- SCG secondary cell group
- the present application provides a communication method, a device, a system thereof, and the like, to solve the problem in the background that when a base station having a CU and a DU architecture is used as a secondary base station, the DU cannot correctly parse the configuration information of the secondary cell group that the CU sends to the DU. The problem that caused the system to go wrong.
- an embodiment of the present application provides a communication method, where the communication method runs in a communication system, where the communication system includes a centralized unit and a distributed unit. When the communication system is running, the following operations are performed:
- the distributed unit DU sends the configuration information and/or the first indication of the cell group to the centralized unit CU, where the configuration information of the cell group may be configuration information of the fully configured cell group, and the first indication may be used to notify the
- the centralized unit CU performs full configuration in the distributed unit DU, or the distributed unit DU can trigger the centralized unit CU to generate full configuration related information by using the first indication, for example, the CU receives the first After an indication, configuration information of the fully configured radio bearer is generated.
- the distributed unit DU and the centralized unit CU form a secondary base station in a multi-connection scenario, and the distributed unit sends a second indication sent by the CU to the terminal device, where the second indication It can be used to notify the terminal device to perform a secondary base station configuration update operation.
- the distributed unit DU sends a control message from the centralized unit CU to the terminal device, for example, the control message may be a radio resource control reconfiguration message, and the radio resource controls the reconfiguration message.
- the configuration information of the fully configured radio bearer and/or the configuration information of the fully configured radio group is included, where the configuration information of the fully configured radio bearer includes configuration information of the service data adaptation protocol layer and a packet data convergence layer protocol. At least one of the configuration information of the layer; the configuration information of the fully configured radio bearer is generated by the centralized unit CU based on the first indication; and the configuration information of the fully configured cell group includes a radio link control layer. At least one of configuration information, configuration information of the medium access control layer, and configuration information of the physical layer.
- the configuration information of the fully configured cell group and the first indication are sent in a message defined on a communication interface between the distributed unit and the centralized unit, or the fully configured The configuration information of the cell group and the first indication are sent in an uplink data packet between the distributed unit and the centralized unit.
- the distributed unit DU sends the configuration information and/or the first indication of the fully configured cell group to the centralized unit CU, and needs to satisfy at least one of the following:
- the distributed unit DU receives the reference configuration information of the secondary cell group SCG sent by the centralized unit, but the distributed unit DU cannot correctly parse or understand the secondary cell group SCG in the reference configuration information of the secondary cell group SCG.
- Configuration information
- the distributed unit DU (optionally, within a predetermined time) does not receive the configuration information of the secondary cell group SCG from the centralized unit; or the distributed unit DU receives the auxiliary from the centralized unit Reference configuration information of the cell group SCG, but the reference configuration information of the secondary cell group SCG does not include configuration information of all or part of the secondary cell group SCG;
- the distributed unit DU receives an indication from the centralized unit, the indication being used to notify the distributed unit DU that a full configuration needs to be performed.
- the design may be applicable to when the CU sends the reference configuration information of the SCG to the DU, and the DU cannot correctly identify the configuration information of the SCG, the DU may determine the configuration information of the fully configured cell group (such as CellGroupConfig), DU.
- the CU is notified by sending the indication information, so that the CU also generates configuration information (for example, radioBearerConfig) based on the fully configured radio bearer, which also helps solve the problem that the secondary base station cannot understand the configuration information of the source secondary base station and causes the system to go wrong.
- the distributed unit has or only includes: a radio link control layer, a medium access control layer, and a physical layer; the centralized unit has or includes only: a radio resource control layer, and service data adaptation. Protocol layer, and packet data aggregation layer protocol layer.
- the communication method provided by the foregoing first aspect and the various feasible designs thereof are provided to help solve the problem that the DU cannot correctly parse the configuration information of the secondary cell group sent by the CU to the DU, thereby causing a system error.
- the present application provides a communication device, including: at least one processor and a communication interface, the communication interface is used for information interaction between the communication device and other communication devices, when the program instruction is in the at least one process When executed in the device, the communication device is enabled to implement the first aspect and its various optional designs in a centralized unit or a distributed unit.
- the present application provides a computer program product having program instructions that, when executed directly or indirectly, cause the first aspect and its various alternative designs to be in a centralized unit Or the functionality on the distributed unit is implemented.
- the present application provides a computer program storage medium having program instructions that, when executed directly or indirectly, cause the first aspect and various alternative designs thereof to be concentrated The functions on the unit or distributed unit are implemented.
- the present application provides a chip system including at least one processor, when program instructions are executed in the at least one processor, such that the first aspect and various alternative designs thereof are concentrated The functions on the unit or distributed unit are implemented.
- the present application provides a communication system comprising the communication device of the second aspect.
- FIG. 1 is a schematic block diagram of a 5G system provided by an embodiment of the present application.
- FIG. 2 is a schematic block diagram of a 5G system provided by an embodiment of the present application.
- FIG. 3 is a schematic block diagram of a 5G system according to an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of a communication system and method according to an embodiment of the present application.
- FIG. 5 is a schematic block diagram of a communication device according to an embodiment of the present application.
- first, “second” and the like in the present application are only intended to distinguish different objects, and “first” and “second” do not limit the actual order or function of the objects to which they are modified.
- first and “second” in “first indication” and “second indication” are merely meant to distinguish that the two are different indications, and “first” and “second” themselves are not The actual sequence or function is limited.
- the expressions “exemplary”, “example”, “such as”, “optional design” or “a design” appearing in the present application are merely used to denote examples, illustrations or illustrations. Any embodiment or design described in the application as “exemplary”, “example”, “such as”, “optional design” or “a design” should not be construed as The design is more preferred or more advantageous.
- upstream and downstream appearing in this application are used to describe the direction of data/information transmission in a specific scenario.
- uplink generally refers to the direction in which data/information is transmitted from the terminal device to the network side, or The direction in which the distributed unit transmits to the centralized unit
- downstream generally refers to the direction in which data/information is transmitted from the network side to the terminal device, or the direction in which the centralized unit transmits to the distributed unit.
- upstream and Downlink is only used to describe the transmission direction of data/information, and the specific starting and ending devices of the data/information transmission are not limited.
- the terminal device may include the following forms: user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal , a wireless communication device, a user agent, or a user device.
- the terminal device can be a station in the WLAN (STAION, ST), which can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, and a personal digital processing.
- WLAN STAION, ST
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, and next-generation communication system, for example, a terminal device in a 5G network or Terminal equipment in the future evolution of the Public Land Mobile Network (PLMN) network.
- PLMN Public Land Mobile Network
- the terminal device can also be a wearable device.
- a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
- a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
- the terminal device can also be a terminal device in the Internet of Things (IoT) system.
- IoT Internet of Things
- Its main technical feature is to connect items to the network through communication technology, thereby realizing mutual interaction. Even, the intelligent network of physical interconnection.
- the terminal device uses the UE as an example to describe the solution in the embodiment, but it can be understood that the terminal device in the embodiment of the present application is not limited to the UE.
- the UE performs DC at the source base station, and the UE performs the handover.
- the target base station also performs the DC
- the source-side base station transmits the configuration information related to the source base station to the target-side base station in the handover process, and the master node (MN) in the target-side base station can correctly parse the master in the target base station.
- MN master node
- the configuration information of the cell group (MCG), the target MN sends the secondary cell group (SCG) configuration information to the secondary node (SN) in the target side base station, if the target SN If the configuration information of the SCG cannot be correctly parsed, the target SN notifies that the target MN will adopt the full configuration of the SCG by sending the indication information, and the target MN receives the indication of the target SN, and the control message sent by the target MN to the UE (
- the RRC reconfiguration message of the LTE system includes a full configuration indication, where the full configuration indication may specifically be an en-DC-release indication or an scg-ConfigReleaseNR indication.
- the CU sets the reference configuration information of the secondary cell group (SCG) provided by the primary base station (for example, SCG-ConfigInfo). Send to DU.
- the reference configuration information of the SCG includes at least one of the following: configuration information of a master cell group (MCG), configuration information of the SCG, and capability information of the UE.
- the configuration information of the MCG includes at least one of the following: radioResourceConfigDedMCG defined in the long term evolution (LTE) system protocol, sCellToAddModListMCG defined in the LTE protocol, and mcg defined in the 5G new radio (NR) protocol. - RB-Config;
- the configuration information of the SCG includes at least one of the following: scg-RadioConfig defined in the LTE protocol, and sourceConfigSCG defined in the NR protocol.
- the UE capability information includes, for example, UECapabilityInformation defined in the LTE or NR protocol.
- the reference configuration information of the SCG may include: capability information of the UE and configuration information of the MCG.
- the reference configuration information of the SCG may also carry the SCG configuration of the source SN.
- One purpose of the MN to provide reference configuration information for the SCG is to enable the SN to be referenced when configuring the SCG. Both the MCG configuration information and the SCG configuration information contain two parts.
- the configuration information of the MCG or the configuration information of the SCG includes: configuration information of the PDCP layer, configuration information of the RLC layer, configuration information of the MAC layer, and configuration information of the PHY layer;
- the configuration information of the MCG or the configuration information of the SCG includes: configuration information of the SDAP and/or PDCP (for example, radioBearerConfig), configuration information of the RLC layer, configuration of the MAC layer, and configuration information of the PHY layer. At least one of them (specifically, CellGroupConfig).
- the configuration of the reference configuration information of the SCG sent by the CU to the DU may be as follows:
- the protocol version supported by the DU is different from the protocol version corresponding to the configuration information of the SCG sent by the CU, for example, the protocol version supported by the DU is 3GPP R15, but the protocol version corresponding to the SCG configuration information sent by the CU is 3GPP R16, then the DU There is a case where the configuration information of the SCG transmitted by the CU cannot be correctly analyzed. For example, the DU can parse most of the configuration information of the SCG, but the newly introduced cell for the 3GPP R16 protocol version cannot be correctly parsed, or the DU cannot be parsed. The configuration information of the part or the entire SCG sent by the CU.
- the DU Due to the limited capacity of the DU support or the protocol version supported by the DU and the protocol version corresponding to the SCG configuration information sent by the CU, the DU cannot correctly parse the configuration information of the SCG sent by the CU, which may cause a system error.
- this embodiment illustrates a communication system and/or method 400 that includes:
- Operation 401 The CU sends the reference configuration information of the SCG to the DU.
- reference configuration information of the SCG may be SCG-ConfigInfo.
- a configuration of the reference configuration information of the SCG refer to Table 1.
- the reference configuration information of the SCG may include configuration information of the SCG and the like.
- the CU may carry an indication for notifying that the DU needs to perform full configuration by sending a message to the DU.
- the CU includes the indication (specifically, a full confiurationg indication) in the UE context setup request message and/or the UE context modification request message, to indicate that the DU performs full configuration.
- the DU receives the trigger of the indication information, and the DU generates a fully configured cell group configuration (for example, CellGroupConfig). If the CU can not correctly identify the configuration information of the SCG, the CU can determine the configuration information of the fully configured radio bearer (for example, radioBearerConfig). Specifically, the CU can send the indication information to notify the DU to generate the full information. Configuration information of the configured cell group (specifically, CellGroupConfig).
- Operation 402 The DU sends configuration information and/or a first indication of the fully configured cell group to the CU.
- the DU may not correctly parse the configuration information of the SCG sent by the CU.
- the DU may parse most of the content of the SCG configuration information, but the newly introduced cell for the 3GPP R16 protocol version cannot be correctly parsed, or The DU cannot parse the configuration information of the part or the entire SCG sent by the CU.
- the DU may generate the configuration information of the fully configured cell group (the specific form may be: CellGroupConfig), and send the configuration information of the fully configured cell group to the CU.
- the configuration information (CellGroupConfig) of the fully configured cell group may specifically include at least one of configuration information of the RLC layer, configuration information of the MAC layer, and configuration information of the PHY layer.
- the DU may also generate a first indication, where the first indication may be used to notify the CU that the DU performs a full configuration.
- the first indication may be a first full configuration indication (the specific form may be: full Config), and the DU may send the first full configuration indication to the CU.
- the DU may send a message to the CU on the F1 interface or the DU.
- the first full configuration indication is sent to the CU in the uplink data packet.
- the DU may carry the first full configuration indication in at least one of the following types of messages in the F1AP message: UE context setup response (UE context setup)
- the message, the UE context modification response message is sent to the CU by the type of the message, which is not limited herein.
- the design is applicable to when the CU sends the reference configuration information of the SCG to the DU, and the DU cannot correctly identify the configuration information of the SCG, the DU can determine the configuration information of the fully configured cell group (such as CellGroupConfig), and the DU passes.
- the CU is sent to notify the CU, so that the CU also generates configuration information (for example, radioBearerConfig) based on the fully configured radio bearer, which helps solve the problem that the secondary base station cannot understand the configuration information of the source secondary base station and causes a system error.
- the first indication generated by the DU and the configuration information of the fully configured cell group generated by the DU may be included in the same message and sent to the CU, where the first indication and the configuration of the fully configured cell group are configured. Information can also be sent to the CU in separate messages.
- the DU may also be instructed to perform full configuration by an implicit method.
- the distributed unit DU (optionally, within a predetermined time) does not receive the secondary cell group SCG from the centralized unit.
- Configuration information; or the distributed unit DU receives the reference configuration information of the secondary cell group SCG from the centralized unit, but the reference configuration information of the secondary cell group SCG does not include configuration information of all or part of the secondary cell group SCG
- the DU can perform a full configuration operation, for example, the DU generates the configuration information of the fully configured cell group (such as CellGroupConfig), and the DU notifies the CU by sending the indication information, so that the CU also generates the configuration information of the radio bearer based on the full configuration.
- the DU sends configuration information (for example, CellGroupConfig) of the fully configured cell group to the CU. For example, if the DU receives a message (such as a UE context setup request message) that includes E-URTAN quality of service (QoS) information, the DU can learn that the base station where the DU is located is in the process of performing EN-DC, The base station where the CU-DU is located is a secondary base station.
- a message such as a UE context setup request message
- QoS quality of service
- the DU may be triggered to generate cell group full configuration information (CellGroupConfig).
- CellGroupConfig new air interface dual connectivity
- NR-DC new air interface dual connectivity
- MR DC multi-RAT/Radio Dual Connectivity
- NE-DC NE-DC
- LTE DC LTE dual connectivity
- Operation 403 The CU sends a second indication to the UE.
- the CU generates configuration information of the radio bearer based on the full configuration (specifically, radioBearerConfig).
- the CU may receive the first indication sent by the DU (such as the first full configuration indication). Then, the configuration information of the radio bearer based on the full configuration is generated.
- the CU may also determine the configuration information of the radio bearer based on the full configuration. In this case, the DU may not send the first indication to the CU.
- the CU may generate a control message based on the full configuration based on configuration information of the fully configured radio bearer (such as radioBearerConfig) and/or configuration information of the fully configured cell group (such as CellGroupConfig) from the DU.
- the control message includes configuration information of the fully configured radio bearer and/or configuration information of the fully configured cell group from the DU, and the control message may be an RRC reconfiguration (specifically, an RRC reconfiguraiton) message.
- the configuration information of the fully configured radio bearer and/or the configuration information of the fully configured cell group from the DU may be sent to the UE by using a control message on an interface between the MN and the SN.
- the configuration information of the radio bearer may include at least one of configuration information of the SDAP and the PDCP.
- the CU may carry the second indication by using a control message, such as an RRC reconfiguration (such as RRCReconfiguration) message, where the second indication may be a second full configuration indication (specifically, fullconfig), and the CU may also The second indication is sent to the UE by using another separate signaling.
- the CU may send the second indication to the MN, and the MN sends the indication information to the UE according to the second indication, so that the UE The secondary base station configuration update operation is performed.
- the CU may directly send an RRC reconfiguration message to the UE, where the RRC reconfiguration message may include the second indication, and notify the UE to perform a secondary base station configuration update operation, where the CU acts as
- the second indication may be sent to the UE by other signaling, and the UE is notified to perform the secondary base station configuration update operation.
- the configuration update operation performed by the UE includes at least one of the following: deleting the basic information except For example, other proprietary configurations than the MCG cell radio network temporary identifier (C-RNTI) and/or MCG security related configuration; enabling new configuration in the RRC reconfiguration message (eg, measuring configuration MeasConfig, OtherConfig, etc.).
- C-RNTI MCG cell radio network temporary identifier
- MCG security related configuration e.g, measuring configuration MeasConfig, OtherConfig, etc.
- the configuration update operation performed by the UE includes at least one of the following: replacing the old configuration with the new configuration carried in the RRC reconfiguration message, if Some of the old configuration cannot be replaced by the new configuration. For example, some cells do not exist in the new configuration. For this part of the cell, the following operations can be performed according to the 3GPP protocol: the UE continues to use the value of the corresponding parameter in the previous configuration, and the UE behavior is unchanged. Alternatively, the UE deletes the parameter and stops the related behavior.
- a full configuration indication of an air interface is defined.
- a full configuration indication (specifically en-DC-release or scg-ConfigReleaseNR) for the configuration of the SCG in the air interface is added.
- the basic meaning is similar to fullconfig.
- the difference is in the EN-DC scenario for SCG.
- the configured full configuration indication is only for the SCG configuration.
- the UE receives a full configuration indication for the configuration of the SCG, and can delete other proprietary configurations other than SCG basic information such as SCG C-RNTI, SCG security related configuration, etc., enabling the RRC received by the UE. Reconfigure new configurations in messages, and more.
- the UE may also delete all configurations of the SCG, enable new configuration in the RRC reconfiguration message, and the like. For other dual or multiple connections, a full configuration indication of the configuration of the SCG for the SCG may be introduced in the future. This program is equally applicable.
- the CU when the gNB formed by the CU-DU is used as the secondary base station (the CU represents the secondary base station to communicate with other network elements), the CU sends a third full configuration indication to the primary base station, so that the primary base station is in its RRC reconfiguration.
- the message carries a full configuration indication of the secondary base station (specifically, an en-DC-release indication or an scg-ConfigReleaseNR indication).
- the CU sends the second indication and/or the RRC reconfiguration message to the UE, and the CU sends the second indication to the UE, for example, the CU passes the F1 interface between the CU and the DU.
- the second indication and/or the RRC reconfiguration message is sent to the DU, and the DU is sent to the UE through the air interface, and the DU can use the method of not parsing the message content when sending the second indication and/or the RRC reconfiguration message to the UE.
- Sending, the DU may also be sent by means of parsing part or all of the message content, which is not limited herein.
- the base station has the system architecture as shown in FIG. 3, that is, when the centralized unit CU includes a centralized unit control plane (CU-CP) and a centralized unit user plane (CU-UP), the foregoing
- CU-CP centralized unit control plane
- CU-UP centralized unit user plane
- the functions of the CU in an embodiment and any of its designs may be performed by the CU-CP, the operation between the CU-CP and the DU being similar to the operation between the CU and the DU in any of the foregoing embodiments and any of the designs.
- Optional operation 1 The CU-CP sends the SCG reference configuration information to the DU. For details, refer to operation 401.
- Optional operation 2 The DU sends the fully configured cell group configuration and/or the first indication to the CU-CP. For details, refer to operation 402.
- Optional operation 3 The CU-CP sends the reference configuration information of the SCG to the CU-UP.
- the CU-CP adds a fourth indication to the E1 interface message (for example, the UE context setup request or the UE context modification request message), for example, the fourth indication may be the fourth full
- the configuration indicator is used to notify the CU-UP to generate configuration information of the fully configured radio bearer (specifically: radioBearerConfig).
- the CU-UP may be instructed to perform full configuration by using an implicit method, for example, the CU-CP does not send reference configuration information of the SCG (specifically, may be SCG-ConfigInfo) or If the reference configuration information of the SCG sent by the CU-CP (which may be SCG-ConfigInfo) does not include part or does not include all SCG configurations, the CU-UP may be triggered to perform a full configuration operation. For example, if the CU-UP received message (such as the UE context setup request message) contains E-URTAN quality of service (QoS) information, the CU-UP can learn that the base station where the DU is located performs EN-DC.
- the CU-CP does not send reference configuration information of the SCG (specifically, may be SCG-ConfigInfo) or If the reference configuration information of the SCG sent by the CU-CP (which may be SCG-ConfigInfo) does not include part or does not include all SCG configurations, the CU-UP may be triggered to perform a
- the base station where the CP-UP is located is a secondary base station.
- the CP-UP does not receive the reference configuration information of the SCG (specifically, it may be SCG-ConfigInfo) or the reference configuration information of the SCG sent by the CU-CP ( Specifically, the CG-UP may be configured to include the radio bearer configuration information of the fully configured radio bearer (specifically, radioBearerConfig).
- Optional operation 4 The CU-UP sends the configuration information of the fully configured radio bearer (specifically: radioBearerConfig) and/or the fifth indication to the CU-CP.
- the fifth indication may be used to notify the CU-CP that the CU-UP performs the full configuration.
- the fifth indication may be a fifth full configuration indication (the specific form may be: full Config), and the CU-UP will be the fifth.
- the full configuration indication is sent to the CU-CP.
- the CU-UP may send the fifth full configuration indication to the CU-CP in the uplink data packet sent by the CU-CP to the CU-CP.
- the CU-UP may carry the fifth full configuration indication in at least one of the following types of messages in the E1AP message: a UE context setup response message, a UE context modification response message,
- the fifth full configuration indication is sent to the CU-CP by using a specific type of message, which is not limited herein.
- the CU-UP if the CU-UP cannot correctly parse the configuration information of the SCG from the CU-CP, the CU-UP generates configuration information of the fully configured radio bearer (such as radioBearerConfig), specifically including SDAP and/or Or PDCP configuration.
- the fully configured radio bearer such as radioBearerConfig
- Optional operation 5 The CU-CP sends a second indication to the UE.
- the CU-CP generates configuration information (such as radioBearerConfig) of the fully configured radio bearer sent by the CU-UP and/or configuration information of the fully configured cell group (such as CellGroupConfig) from the DU.
- the control message may be an RRC reconfiguration (specifically, an RRC reconfiguraiton) message.
- the configuration information of the radio bearer may include at least one of configuration information of the SDAP and the PDCP.
- the CU-CP receives the first indication sent by the DU (such as the first full configuration indication) and/or the fifth indication sent by the CU-UP (such as the fifth full configuration indication), and generates a configuration based on the full configuration.
- the RRC reconfiguration message includes configuration information of the fully configured radio bearer sent by the CU-UP and/or configuration information of the fully configured cell group from the DU.
- the configuration information of the fully configured radio bearer sent by the CU-UP and/or the configuration information of the fully configured cell group from the DU may be sent to the UE by using a control message on an interface between the MN and the SN.
- the operations are sequentially numbered in the foregoing embodiment, but it is understood that the sequence numbering is merely for convenience of writing, and does not mean that operations must be sequentially performed in order of sequential numbers.
- the above operation sequence may be changed according to requirements.
- the CU-CP may first interact with the CU-UP, and then interact with the DU, according to operation 1, operation 3, operation 4, operation 2, and operation. The order of 5 is executed. There is no limit here.
- the CU-UP can be physically deployed separately from the CU-CP and the DU, or can be deployed in a centralized manner.
- any of the designs shown above may be understood as a technical solution designed for a specific scenario or a specific technical problem, but it is not necessary to implement the technical content described in the present application, and any one of the designs may be required according to needs. Implemented in conjunction with other designs to more specifically address specific objective technical issues.
- the distributed unit DU has the functions of the RLC, MAC, and PHY protocol layers
- the centralized unit CU has the functions of the RRC, SDAP, and/or PDCP protocol layers
- the DU and CU The protocol layers that are formed together constitute the RRC, SDAP, PDCP, RLC, MAC and PHY or RRC, PDCP, RLC, MAC and PHY protocol layer architecture settings that the base station has.
- RRC Secure Digital Access
- PDCP Radio Resource Control Protocol
- RLC radio link control protocol
- MAC and PHY protocol layer architecture settings that the base station has.
- the DU has a MAC and a PHY
- the CU has RRC, SDAP, PDCP and RLC or RRC, PDCP and RLC, where Not limited.
- the DU can be physically integrated with the radio system as two parts of a communication device, and the DU and CU can also be physically part of a communication device to integrate the two, or The RF system and the DU and CU can also be physically part of the same network node so that the three can be integrated.
- the embodiment of the present application provides a schematic block diagram of a communication device 500, where the communication device 500 includes:
- At least one processor 501 optionally including a communication interface 502 for supporting communication interaction between the communication device 500 and other devices; when the program instructions are executed in the at least one processor 501, the foregoing embodiment of the present application
- the functions of any of the following devices operating on any of the following devices are implemented: CU, DU, CP, and UP.
- the communication device 500 may further include a memory 503 for storing program instructions necessary for implementing the above-described device functions or process data generated during program execution.
- the communication device 500 may further include internal interconnection lines to implement communication interaction between the at least one processor 501, the communication interface 502, and the memory 503.
- the at least one processor 501 can be implemented by a dedicated processing chip, a processing circuit, a processor, or a general purpose chip.
- a dedicated circuit/chip may be provided in the at least one processor.
- the implementation can also be implemented by using a general-purpose processor provided in the at least one processor 501 to execute a program instruction related to a PHY function, an F1 port or an E1 port communication function; for example, the embodiment of the present application relates to a MAC in the device.
- the at least one processor 501 may comprise a communication processing chip, by performing a MAC layer, an RLC layer, a PDCP layer, an SDAP layer and an RRC layer.
- the relevant functions of the program instructions are implemented. It can be understood that the various methods, processes, operations or steps involved in the embodiments of the present application can be combined in one-to-one correspondence by computer software, electronic hardware, or a combination of computer software and electronic hardware. A corresponding implementation. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution.
- the communication interface 502 generally has a function of performing information interaction between two communication peers.
- the communication interface may be designed as an interface circuit or include the same.
- the hardware module of the interface circuit supports the wired form communication interaction between the communication peers.
- the F1 port between the DU and the CU involved in the present application and the communication function of the E1 port between the CP and the UP can be adopted.
- This type of interface design for the case where the wireless communication information interaction is performed between the communication peers, the communication interface may be an interface circuit having a radio frequency transceiving function, or a hardware system including the interface circuit having the radio frequency transceiving function.
- the communication interface of the DU and the UE can adopt this design.
- the CU, DU, the CP, or the UP can also be implemented by directly or indirectly executing the implementation program instructions of the embodiment related design by using a general hardware platform (having processing resources and storage resources). Or the function of UP in each design of the embodiment of the present application.
- An actual deployment method may be that the CU, the CP, or the UP may be close to the core network device, or may be deployed cooperatively, and may be physically separated or combined; the functions of the CU, CP, or UP may also be used as part of the core network device.
- the embodiment of the present application further provides a computer program product having program instructions, when the program instructions are directly or indirectly executed, for example, when executed in the communication device 500 in the foregoing embodiment,
- the functions of any of the following devices in any of the design embodiments are implemented: CU, CP, UP, and DU.
- the program instructions may be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the program instructions may be from a website site, a computer
- the server or data center is transported to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
- a program instruction When a program instruction is executed, considering that a specific network device generally includes a hardware layer, an operating system layer running on the hardware layer, or an intermediate layer, when the program instructions related to the embodiment of the present application are executed, the multi-layer is often The invocation and execution of software, so the program instructions can be an indirect execution process in a hardware device (general purpose processing circuit or dedicated processing circuit).
- the embodiment of the present application further provides a chip system, the chip system including at least one processor, when program instructions are executed in the at least one processor, such that the design is as described in the first aspect and any of the The functions on any of the following devices are implemented: CU, DU, CP, and UP.
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Abstract
Description
Claims (27)
- 一种通信方法,其特征在于,包括:分布式单元DU向集中式单元CU发送全配置的小区组的配置信息和/或第一指示,所述第一指示用于通知所述集中式单元CU所述分布式单元DU执行了全配置的情况。
- 如权利要求1所述的通信方法,其特征在于,包括:所述分布式单元DU和所述集中式单元CU构成多连接场景中的辅基站,所述分布式单元将来自于CU的第二指示发送给终端设备,所述第二指示用于通知所述终端设备执行所述辅基站配置更新操作。
- 如权利要求1或2所述的通信方法,其特征在于,包括:所述分布式单元DU将来自于所述集中式单元CU的无线资源控制重配置消息发送给所述终端设备,所述无线资源控制重配置消息包含全配置的无线承载的配置信息和/或全配置的小区组的配置信息;其中,所述全配置的无线承载的配置信息包括业务数据适配协议层的配置信息和/或分组数据汇聚层协议层的配置信息,所述全配置的无线承载的配置信息是所述集中式单元CU基于所述第一指示触发生成;所述全配置的小区组的配置信息包括无线链路控制层的配置信息,媒体接入控制层的配置信息,或者物理层的配置信息中的任一种或任多种。
- 如权利要求1-3中任一所述的通信方法,其特征在于,所述全配置的小区组的配置信息和所述第一指示被包含在所述分布式单元DU和所述集中式单元CU之间通信接口上定义的一个消息中发送,或者所述全配置的小区组的配置信息和所述第一指示被携带在所述分布式单元DU和所述集中式单元CU之间的上行数据包中发送。
- 如权利要求1-4中任一所述的通信方法,其特征在于,所述分布式单元DU向所述集中式单元CU发送全配置的小区组的配置信息和/或第一指示,满足如下中任一种或任多种:所述分布式单元DU接收到来自于所述集中式单元CU的辅小区组SCG的参考配置信息,所述分布式单元DU不能正确解析所述辅小区组SCG的参考配置信息中的辅小区组SCG的配置信息;所述分布式单元DU接收到来自于所述集中式单元CU的辅小区组SCG的参考配置信息,所述辅小区组SCG的参考配置信息未包含全部或部分辅小区组SCG的配置信息;或者,所述分布式单元DU接收到来自于所述集中式单元的指示,所述指示用于通知所述分布式单元DU需要执行全配置。
- 一种通信方法,其特征在于,包括:集中式单元CU接收来自于分布式单元DU的全配置的小区组的配置信息和/或第一指示,所述第一指示用于通知所述集中式单元CU所述分布式单元DU执行了全配置的情况。
- 如权利要求6所述的通信方法,其特征在于,包括:所述分布式单元DU和所述集中式单元CU构成多连接场景中的辅基站,所述集中式单元CU通过所述分布式单元DU将第二指示发送给终端设备,所述第二指示用于通知所述终端设备执行所述辅基站配置更新操作。
- 如权利要求6或7所述的通信方法,其特征在于,包括:所述集中式单元CU通过所述分布式单元DU将无线资源控制重配置消息发送给所述终端设备,所述无线资源控制重配置消息包含全配置的无线承载的配置信息和/或全配置的小区组的配置信息;其中,所述全配置的无线承载的配置信息包括业务数据适配协议层的配置信息和/或分组数据汇聚层协议层的配置信息;所述全配置的无线承载的配置信息是所述集中式单元CU收到所述第一指示触发生成;所述全配置的小区组的配置信息包括无线链路控制层的配置信息,媒体接入控制层的配置信息,或者物理层的配置信息中的任一种或任多种。
- 如权利要求6-8中任一所述的通信方法,其特征在于,所述全配置的小区组的配置信息和所述第一指示被包含在所述集中式单元CU和所述分布式单元DU之间通信接口上定义的一个消息中接收,或者所述全配置的小区组的配置信息和所述第一指示被携带在所述集中式单元CU和所述分布式单元DU之间的上行数据包中接收。
- 如权利要求6-9中任一所述的通信方法,其特征在于,包括:所述集中式单元CU收到来自于所述分布式单元DU的所述全配置的小区组的配置信息和/或所述第一指示,满足如下中任一种或任多种:所述集中式单元向所述分布式单元DU发送辅小区组SCG的参考配置信息,所述辅小区组SCG的参考配置信息中的辅小区组SCG的配置信息不能被所述分布式单元DU正确解析;所述集中式单元CU接收到来自于主基站的辅小区组SCG的参考配置信息,所述集中式单元向所述分布式单元DU发送辅小区组SCG的参考配置信息,所述辅小区组SCG的参考配置信息中未包含全部或者部分所述辅小区组SCG的配置信息;或者,所述集中式单元CU向所述分布式单元DU发送指示,所述指示用于通知所述分布式单元DU需要执行全配置。
- 如权利要求1-10中任一所述的通信方法,其特征在于,所述分布式单元DU具有:无线链路控制层,媒体接入控制层,以及物理层;所述集中式单元CU具有:无线资源控制层,业务数据适配协议层,以及分组数据汇聚层协议层。
- 一种通信设备,其特征在于,所述通信设备包括:至少一个处理器和通信接口,所述通信接口用于所述通信设备与其他通信设备进行信息交互,当程序指令在所述至少一个处理器中执行时,使得所述通信设备实现如权利要求1-11中任一所述的方法中在如下任一设备上的功能:所述分布式单元DU和所述集中式单元CU。
- 一种计算机程序存储介质,其特征在于,所述计算机程序存储介质具有程序指令,当所述程序指令被直接或者间接执行时,使得如权利要求1-11中任一所述的方法中在如下任一设备上的功能得以实现:所述分布式单元DU和所述集中式单元CU。
- 一种芯片***,其特征在于,所述芯片***包括至少一个处理器,当程序指令在所述至少一个处理器中执行时,使得如权利要求1-11中任一所述的方法中在如下任一设备上的功能得以实现:所述分布式单元DU和所述集中式单元CU。
- 一种通信***,其特征在于,所述通信***包括:如权利要求12所述的通信设备。
- 一种通信装置,应用于分布式单元DU,其特征在于,所述通信装置包括:用于向集中式单元CU发送全配置的小区组的配置信息和/或第一指示的装置,所述第一指示用于通知所述CU所述通信设备执行了全配置的情况。
- 如权利要求16所述的通信装置,其特征在于,所述分布式单元DU和所述集中式单元CU构成多连接场景中的辅基站,所述通信装置包括:用于将来自于所述CU的第二指示发送给终端设备的装置,所述第二指示用于通知所述终端设备执行所述辅基站配置更新操作。
- 如权利要求16或17所述的通信装置,其特征在于,所述通信装置包括:用于将来自于所述CU的无线资源控制重配置消息发送给所述终端设备的装置,所述无线资源控制重配置消息包含全配置的无线承载的配置信息和/或全配置的小区组的配置 信息;其中,所述全配置的无线承载的配置信息包括业务数据适配协议层的配置信息和/或分组数据汇聚层协议层的配置信息,所述全配置的无线承载的配置信息是所述集中式单元CU基于所述第一指示触发生成;所述全配置的小区组的配置信息包括无线链路控制层的配置信息,媒体接入控制层的配置信息,或者物理层的配置信息中的任一种或任多种。
- 如权利要求16-18中任一所述的通信装置,其特征在于,所述全配置的小区组的配置信息和所述第一指示被包含在所述分布式单元DU和所述集中式单元CU之间通信接口上定义的一个消息中发送,或者所述全配置的小区组的配置信息和所述第一指示被携带在所述分布式单元DU和所述集中式单元CU之间的上行数据包中发送。
- 如权利要求16-19中任一所述的通信装置,其特征在于,所述通信装置向所述集中式单元CU发送全配置的小区组的配置信息和/或第一指示,满足如下中任一种或任多种:所述通信装置接收到来自于所述集中式单元CU的辅小区组SCG的参考配置信息,所述通信装置不能正确解析所述辅小区组SCG的参考配置信息中的辅小区组SCG的配置信息;所述通信装置接收到来自于所述集中式单元CU的辅小区组SCG的参考配置信息,所述辅小区组SCG的参考配置信息未包含全部或部分辅小区组SCG的配置信息;或者,所述通信装置接收到来自于所述集中式单元CU的指示,所述指示用于通知所述通信装置DU需要执行全配置。
- 一种通信装置,应用于集中式单元CU,其特征在于,所述通信装置包括:用于接收来自于分布式单元DU的全配置的小区组的配置信息和/或第一指示的装置,所述第一指示用于通知所述集中式单元CU所述分布式单元DU执行了全配置的情况。
- 如权利要求21所述的通信装置,其特征在于,所述分布式单元DU和所述集中式单元CU构成多连接场景中的辅基站,所述通信装置包括:用于通过所述分布式单元DU将第二指示发送给终端设备的装置,所述第二指示用于通知所述终端设备执行所述辅基站配置更新操作。
- 如权利要求21或22所述的通信装置,其特征在于,所述通信装置包括:用于通过所述分布式单元DU将无线资源控制重配置消息发送给所述终端设备的装置,所述无线资源控制重配置消息包含全配置的无线承载的配置信息和/或全配置的小区组的配置信息;其中,所述全配置的无线承载的配置信息包括业务数据适配协议层的配置信息和/或分组数据汇聚层协议层的配置信息;所述全配置的无线承载的配置信息是所述集中式单元CU收到所述第一指示触发生成;所述全配置的小区组的配置信息包括无线链路控制层的配置信息,媒体接入控制层的配置信息,或者物理层的配置信息中的任一种或任多种。
- 如权利要求21-23中任一所述的通信装置,其特征在于,所述全配置的小区组的配置信息和所述第一指示被包含在所述集中式单元CU和所述分布式单元DU之间通信接口上定义的一个消息中接收,或者所述全配置的小区组的配置信息和所述第一指示被携带在所述集中式单元CU和所述分布式单元DU之间的上行数据包中接收。
- 如权利要求21-24中任一所述的通信装置,其特征在于,所述集中式单元CU收到来自于所述分布式单元DU的所述全配置的小区组的配置信息和/或所述第一指示,满足如下中任一种或任多种:所述集中式单元向所述分布式单元DU发送辅小区组SCG的参考配置信息,所述辅小区组SCG的参考配置信息中的辅小区组SCG的配置信息不能被所述分布式单元DU正确解析;所述集中式单元CU接收到来自于主基站的辅小区组SCG的参考配置信息,所述集中式单元向所述分布式单元DU发送辅小区组SCG的参考配置信息,所述辅小区组SCG的参考配置信息中未包含全部或者部分所述辅小区组SCG的配置信息;或者,所述集中式单元CU向所述分布式单元DU发送指示,所述指示用于通知所述分布式单元DU需要执行全配置。
- 如权利要求16-25中任一所述的通信装置,其特征在于,所述分布式单元DU具有:无线链路控制层,媒体接入控制层,以及物理层;所述集中式单元CU具有:无线资源控制层,业务数据适配协议层,以及分组数据汇聚层协议层。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包含程序指令,当所述程序指令被直接或者间接执行时,使得如权利要求1-11中任一所述的方法中在如下任一设备上的功能得以实现:所述分布式单元DU和所述集中式单元CU。
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CN109548038B (zh) * | 2017-08-10 | 2020-12-29 | 中兴通讯股份有限公司 | 一种连接方法、配置更新方法、控制面设备和用户面设备 |
KR102515837B1 (ko) * | 2018-06-21 | 2023-03-30 | 가부시키가이샤 엔티티 도코모 | 통신장치, 및 통신방법 |
US11363656B2 (en) * | 2019-08-14 | 2022-06-14 | Qualcomm Incorporated | Techniques for indicating full configuration to a secondary node in dual connectivity |
CN112448932B (zh) * | 2019-09-02 | 2022-09-27 | 成都鼎桥通信技术有限公司 | 消息处理的方法及装置 |
CN112788619B (zh) * | 2019-11-06 | 2023-04-14 | 大唐移动通信设备有限公司 | 一种辅小区组配置方法、主基站、辅基站和终端 |
CN110913409B (zh) * | 2019-11-21 | 2022-08-26 | 中国联合网络通信集团有限公司 | 网络配置方法、装置及*** |
CN113141284B (zh) * | 2020-01-17 | 2022-07-19 | 大唐移动通信设备有限公司 | 一种接入网设备及数据传输方法 |
CN115004754A (zh) * | 2020-02-03 | 2022-09-02 | 华为技术有限公司 | 一种通信方法和装置 |
CN111586815B (zh) * | 2020-04-28 | 2022-05-27 | 珠海格力电器股份有限公司 | 一种功耗优化方法、装置、电子设备及存储介质 |
WO2022082688A1 (zh) * | 2020-10-22 | 2022-04-28 | 华为技术有限公司 | 一种通信方法、装置及*** |
CN116965142A (zh) * | 2021-03-19 | 2023-10-27 | 中兴通讯股份有限公司 | 用于无线通信中的配置的方法 |
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BR112020012890A8 (pt) | 2020-12-22 |
US20200329365A1 (en) | 2020-10-15 |
CN109995553A (zh) | 2019-07-09 |
JP7150854B2 (ja) | 2022-10-11 |
KR102357070B1 (ko) | 2022-02-08 |
BR112020012890A2 (pt) | 2020-12-08 |
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