CN107548166B - Method for configuring multi-connection signaling, main base station, user equipment and communication system - Google Patents
Method for configuring multi-connection signaling, main base station, user equipment and communication system Download PDFInfo
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Abstract
The invention provides a method for configuring a multi-connection signaling, a main base station, user equipment and a communication system, which are used for determining the execution sequence of sending an RRC connection reconfiguration completion message and initiating a random access process on an SeNB by UE through an MeNB and indicating the execution sequence to the UE through the RRC connection reconfiguration message, thereby controlling the UE to send the RRC connection reconfiguration completion message and initiate the random access process on the SeNB according to the set execution sequence and realizing the configuration of the execution sequence of the two actions. In addition, the invention can also determine the execution sequence according to the service quality and the forwarding data volume of the service so as to meet the actual requirements of different services.
Description
Technical Field
The present invention relates to a wireless communication system, and in particular, to a method for configuring a multi-connection signaling, a master base station, a user equipment, and a communication system.
Background
With the continuous development of communication technology, users need networks to provide more convenient and faster large-flow data communication services. To meet this demand of users, communication network architectures are constantly evolving and enhancing. To meet this demand, The third Generation Partnership Project (3 GPP), The 3rd Generation Partnership Project, in release R12, proposes a network architecture that adds several micro base stations within The coverage of a macro base station, The so-called dual connectivity (multi-connectivity) architecture. In this system, a User Equipment (UE) may simultaneously maintain a connection with two (or more) base stations for uplink and downlink communications. Of the two (or more) base stations that remain connected to the user at the same time, one base station is the master base station (MeNB) and is responsible for managing the system, and the other base stations are senbs.
In the signaling procedure of adding dual connectivity (multi-connectivity), after the MeNB and the SeNB negotiate that dual connectivity (multi-connectivity) needs to be added, the MeNB notifies the user equipment in a connected state to complete the addition of the connection between the user equipment and the SeNB (i.e., SeNB addition) through an RRC reconfiguration signaling procedure. The flow of SeNB addition specified in the existing standard protocol is shown in fig. 1:
101. when the MeNB requires the SeNB to allocate radio resources for a specific Evolved radio access Bearer (E-RAB), the MeNB sends a SeNB Addition Request message to the SeNB, where the message carries related E-RAB characteristic parameters, such as E-RAB related parameters, Transport Network layer (TNL, Transport Network layer) address information corresponding to a Bearer type, and the like. In addition, the MeNB also needs to carry MeNB configuration information and capability information of the UE in the SCG-ConfigInfo in the SeNB addition request message, and these information are used as basic information for the SeNB to configure. In addition, the MeNB also needs to provide measurement results to be added as Secondary Cell Group (SCG) cells.
102. If the radio resource management module of the SeNB can accept the admission request, corresponding radio resources and transmission network resources are allocated. In order to achieve synchronization between the UE and the SeNB, the SeNB allocates corresponding access resources. The SeNB sends a SeNB Addition Request acknowledgement (SeNB Addition Request acknowledgement) message to the MeNB, and the SCG-Config in the message carries new SCG configuration information. If the SCG bearer exists, the SeNB also provides S1DL TNL address information and a security algorithm; if it is a split bearer, X2DL TNL address information needs to be provided as well. The SCG configuration information defined by the SCG-Config cell includes the following contents, as defined by the 3GPP TS 36.331 standard:
103. if the MeNB accepts the new configuration in the SeNB addition request acknowledgement message sent by the SeNB, the MeNB sends an RRC connection reconfiguration (RRCConnectionReconfiguration) message to the UE, and the message carries new SCG radio resource configuration information corresponding to SCG-configuration.
The UE uses the new SCG radio resource configuration information and replies an RRC connection reconfiguration complete (rrcconnectionreconfiguration complete) message to the MeNB. If the UE cannot complete the configuration of all or part of RRC connection reconfiguration (RRCConnectionReconfiguration), the UE executes a reconfiguration failure flow.
The MeNB informs the SeNB of the successful completion of the reconfiguration procedure of the UE.
The UE initiates a random access procedure on the SeNB, accesses a second primary Cell (PSCell) of the SeNB, and completes synchronization with the SeNB.
107-108. if the SCG load is carried, according to the characteristics of the appointed E-RAB, the MeNB needs to actively reduce the service interruption caused by the dual-connection activation (SN state transmission (107) and service data forwarding (108)) are needed.
109-112, for SCG load, the updating process of the uplink path between SCG load and EPC is needed.
In the existing protocol, there is no definition of the execution sequence between the UE sending the RRC connection reconfiguration complete message and the UE initiating the random access procedure on the SeNB.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method, a primary base station, a user equipment, and a communication system for configuring a multi-connection signaling, so as to configure an execution sequence between a UE sending an RRC connection reconfiguration complete message and a UE initiating a random access process on an SeNB in a multi-connection configuration process.
To solve the foregoing technical problem, a method for configuring a multi-connection signaling provided in an embodiment of the present invention includes:
a main base station (MeNB) of User Equipment (UE) determines an execution sequence of sending an RRC connection reconfiguration completion message and initiating a random access process on a secondary base station (SeNB) after receiving an SeNB addition request confirmation message sent by the secondary SeNB;
and the MeNB sends an RRC connection reconfiguration message for increasing the connection between the UE and the SeNB to the UE, wherein the RRC connection reconfiguration message carries the indication information of the execution sequence.
Preferably, in the above method, the step of determining an execution sequence of the UE sending the RRC connection reconfiguration complete message and initiating the random access procedure on the SeNB includes:
and determining the execution sequence according to the service quality borne by the SeNB and the data volume of the service which needs to be forwarded to the SeNB.
Preferably, in the above method, the step of determining the execution sequence according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB includes:
when the service quality of the service indicates that the service is a predefined service sensitive to time delay and insensitive to packet loss rate, determining that the execution sequence is to firstly send an RRC connection reconfiguration completion message and then initiate a random access process on the SeNB;
when the service quality of the service indicates that the service is a predefined service insensitive to time delay and sensitive to packet loss rate, if the data volume needing to be forwarded exceeds a preset threshold, determining that the execution sequence is to send an RRC connection reconfiguration completion message first and then initiate a random access process on the SeNB, otherwise, determining that the execution sequence is to send the RRC connection reconfiguration completion message first and then initiate the random access process on the SeNB.
Preferably, in the above method, the step of determining the execution sequence according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB further includes:
and when the service quality of the service indicates that the service is a predefined service sensitive to both time delay and packet loss rate or a service insensitive to both time delay and packet loss rate, determining that the execution sequence is a preset default sequence.
The embodiment of the invention also provides another method for configuring the multi-connection signaling, which comprises the following steps:
the method comprises the steps that User Equipment (UE) receives RRC connection reconfiguration information which is sent by a main base station (MeNB) and used for increasing connection between the UE and an SeNB, wherein the RRC connection reconfiguration information carries indication information of an execution sequence of a RRC connection reconfiguration completion message sent by the UE and a random access process initiated on the SeNB;
and the UE sends the RRC connection reconfiguration completion message and initiates a random access process on the SeNB according to the execution sequence indicated by the indication information.
Preferably, in the above method, the execution sequence is determined according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB.
An embodiment of the present invention further provides a master base station, including:
a sequence determining unit, configured to determine, after receiving an SeNB addition request acknowledgement message sent by a secondary base station SeNB, an execution sequence in which the UE sends an RRC connection reconfiguration complete message and initiates a random access procedure on the SeNB;
a message sending unit, configured to send, to the UE, an RRC connection reconfiguration message used to increase the connection between the UE and the SeNB, where the RRC connection reconfiguration message carries the indication information of the execution sequence.
Preferably, in the above-mentioned primary base station, the order determining unit is specifically configured to determine the execution order according to the quality of service carried by the SeNB and the amount of data that needs to be forwarded to the SeNB for the service.
Preferably, in the master base station, the order determination unit includes:
a first processing unit, configured to determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then initiate a random access process on an SeNB when the service quality of the service indicates that the service is a predefined service that is sensitive to delay and insensitive to packet loss rate;
and a second processing unit, configured to, when the service quality of the service indicates that the service is a predefined service that is insensitive to delay and sensitive to packet loss rate, determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then initiate a random access process on the SeNB if the amount of data that needs to be forwarded exceeds a preset threshold, and otherwise determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then send the random access process on the SeNB.
Preferably, in the master base station, the order determination unit further includes:
a third processing unit, configured to determine that the execution sequence is a preset default sequence when the service quality of the service indicates that the service is a predefined service that is sensitive to both delay and packet loss rate, or a service that is insensitive to both delay and packet loss rate.
An embodiment of the present invention further provides a user equipment, including:
a receiving unit, configured to receive an RRC connection reconfiguration message sent by a master base station MeNB and used to increase a connection between the UE and an SeNB, where the RRC connection reconfiguration message carries indication information of an execution sequence in which the UE sends an RRC connection reconfiguration complete message and initiates a random access procedure on the SeNB;
and the control processing unit is used for sending the RRC connection reconfiguration completing message and initiating a random access process on the SeNB according to the execution sequence indicated by the indication information.
Preferably, in the user equipment, the execution sequence is determined according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB.
The embodiment of the invention also provides a communication system which comprises the main base station and the user equipment.
Compared with the prior art, the method for configuring the multi-connection signaling, the main base station, the user equipment and the communication system provided by the embodiment of the invention have the advantages that the MeNB determines the execution sequence of the RRC connection reconfiguration completion message sent by the UE and the random access process initiated on the SeNB, and indicates the execution sequence to the UE through the RRC connection reconfiguration message, so that the UE can be controlled to send the RRC connection reconfiguration completion message and the random access process initiated on the SeNB according to the set execution sequence, and the configuration of the execution sequence of the two actions is realized. In addition, the embodiment of the invention can also determine the execution sequence according to the service quality and the forwarding data volume of the service so as to meet the actual requirements of different services. In addition, the embodiment of the invention can be compatible with the signaling flow of the existing standard and is easy to realize by carrying the indication information of the execution sequence in the RRC connection reconfiguration message.
Drawings
Fig. 1 is a schematic flow diagram of a prior art SeNB addition;
fig. 2 is a flowchart illustrating a method for configuring multiple connection signaling according to an embodiment of the present invention;
fig. 3 is another flowchart illustrating a method for configuring multi-connection signaling according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a main base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention. In addition, the terms "system" and "network" are often used interchangeably herein.
In the embodiment of the present invention, the Base Station may be a Macro Base Station (Macro Base Station), a micro Base Station (Pico Base Station), a Node B (the name of a 3G mobile Base Station), an enhanced Base Station (ENB), a Home enhanced Base Station (Femto ENB or Home eNode B or Home ENB or HNEB), a relay Station, an access point, an RRU (Remote Radio unit), an RRH (Remote Radio Head), and the like. The terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including a User Equipment (UE), a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer Premise Equipment) or mobile smart hotspot capable of converting mobile signals to WiFi signals, a smart appliance, or other device capable of autonomously communicating with a mobile communication network without human operation, etc.
As shown in fig. 1, the existing protocol does not specify the execution sequence between the UE sending the RRC connection reconfiguration complete message and the UE initiating the random access procedure on the SeNB, and the RRC connection reconfiguration complete message may trigger the MeNB to perform the data forwarding and path updating procedures.
The inventor finds that, when the UE sends the RRC connection reconfiguration complete message first and then starts the random access procedure (initiates the random access RA procedure) on the SeNB, if the RRC connection reconfiguration complete message triggers the MeNB to perform the data forwarding procedure, at this time, if the RA is too long or the RA fails, the ACK/NCAK of the forwarded data and the new data from the EPC may not be sent to the SeNB in time, which may cause data accumulation, and in a severe case, the RRC connection reestablishment may be triggered.
When the UE initiates the random access procedure on the SeNB first and then sends the RRC connection reconfiguration complete message after the synchronization procedure is successful, the data to be forwarded is delayed, which may increase service interruption time for some services.
As can be seen from the above analysis, the prior art does not specify an execution sequence between the UE sending the RRC connection reconfiguration complete message and the UE initiating the random access procedure on the SeNB, and may want to execute a specific sequence in some scenarios.
Referring to fig. 2, a method for configuring a multi-connection signaling according to an embodiment of the present invention, as shown in fig. 2, includes the following steps:
Here, the embodiment of the present invention may be specifically applied to the flow in which the MeNB of the UE adds the SeNB to the UE, for example, after the MeNB receives an SeNB addition request confirmation message sent by the SeNB, if the SCG configuration information carried in the SeNB addition request confirmation message is received (the content of the SCG configuration information may specifically refer to the background part in the foregoing), an execution sequence between two steps of sending an RRC connection reconfiguration complete message and initiating a random access procedure on the SeNB, which the UE needs to execute subsequently, is determined.
Here, the indication information of the execution sequence may be carried in an RRC connection reconfiguration message of an existing SeNB addition procedure, for example, an Information Element (IE) is added in the message. Of course, the indication information may also be sent through other signaling/messages in the embodiments of the present invention. Here, a specific implementation manner is further provided in which an IE is newly added in the RRC connection reconfiguration message to send the indication information: a new IE, such as reconfiguration complete senddirect, is added in the PSCellToAddMod-r12 field in the RRC connection reconfiguration message to indicate the RRC connection reconfiguration complete message and the execution order for synchronization with SENB. For example, when reconfiguration complete senddirect is 0, a synchronization procedure is performed first, and then an RRC connection reconfiguration complete message is sent; when reconfiguration complete senddirect is 1, an RRC connection reconfiguration complete message is sent first, and then a synchronization procedure is performed.
Through the steps, in the configuration process of the UE double connection (or multiple connections), the MeNB determines the execution sequence of the UE sending the RRC connection reconfiguration completion message and initiating the random access process on the SeNB, and indicates the execution sequence to the UE through the RRC connection reconfiguration message, so that the UE can be controlled to send the RRC connection reconfiguration completion message and initiate the random access process on the SeNB according to the set execution sequence, and the configuration of the execution sequence of the two actions is realized. In addition, the embodiment of the invention can be compatible with the signaling flow of the existing standard and has little change to the existing standard by carrying the indication information of the execution sequence in the RRC connection reconfiguration message.
In consideration of different requirements of different services on the delay/packet loss rate, in step 21, the embodiment of the present invention may further determine the execution sequence according to the quality of the service carried by the SeNB and the data amount to be forwarded to the SeNB by the service. The service carried by the SeNB is a service carried on a connection between the UE and the SeNB, and the quality of service (QoS) of the service may be determined directly according to a quality of service class identifier (QCI) of the service, or of course, the service with different service types may be preset to have different quality of service, and then the quality of service of the service may be determined according to the service type.
When the execution sequence is determined, a specific implementation manner provided by the embodiment of the present invention is as follows:
1) and if the service quality of the service indicates that the service is a predefined service sensitive to time delay and insensitive to packet loss rate, determining that the execution sequence is to firstly send an RRC connection reconfiguration completion message and then initiate a random access process on the SeNB.
2) If the service quality of the service indicates that the service is a predefined service which is insensitive to time delay and sensitive to packet loss rate, further judging whether the data volume needing to be forwarded exceeds a preset threshold: if the result exceeds the preset threshold, determining that the execution sequence is to send the RRC connection reconfiguration completion message firstly and then initiate the random access process on the SeNB, otherwise, determining that the execution sequence is to initiate the random access process on the SeNB firstly and then send the RRC connection reconfiguration completion message.
3) And if the service quality of the service indicates that the service is a predefined service sensitive to both time delay and packet loss rate or a service insensitive to both time delay and packet loss rate, determining that the execution sequence is a preset default sequence. The default order may be to send the RRC connection reconfiguration complete message first and then initiate the random access procedure on the SeNB, and the default order may be to initiate the random access procedure on the SeNB first and then send the RRC connection reconfiguration complete message. Of course, the execution order may not be set here, but may be performed according to the processing method of the related art.
Taking the above-mentioned newly added ie (reconfiguration complete senddirect) as an example, for example, when the reconfiguration complete senddirect is set to 1, it may indicate to send an RRC connection reconfiguration complete message first, and then initiate a random access procedure on the SeNB; when the reconfiguration complete senddirect is set to 0, it may indicate that the random access procedure on the SeNB is initiated first, and then send an RRC connection reconfiguration complete message.
Through the above processing, the embodiment of the invention can determine the execution sequence according to the service quality and the forwarding data volume of the service, so as to meet the actual requirements of different services.
Referring to fig. 3, an embodiment of the present invention further provides a flowchart of a method for configuring a multi-connection signaling, where the method is applied to a UE side, and as shown in fig. 3, the method includes:
Here, the execution sequence is determined according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB. The determination may be performed in a manner described in the foregoing, and details are not described here.
And step 32, the UE sends the RRC connection reconfiguration complete message and initiates a random access procedure on the SeNB according to the execution sequence indicated by the indication information.
Here, the UE determines, according to the execution sequence, a sequence of sending the RRC connection reconfiguration complete message and initiating the random access procedure on the SeNB, and further determines whether to send the RRC connection reconfiguration complete message first or to initiate the random access procedure on the SeNB first.
Referring to fig. 4, an embodiment of the present invention provides a main base station for implementing the method, where the main base station includes:
a sequence determining unit 41, configured to determine, after receiving an SeNB addition request acknowledgement message sent by a secondary base station SeNB, an execution sequence in which the UE sends an RRC connection reconfiguration complete message and initiates a random access procedure on the SeNB;
a message sending unit 42, configured to send, to the UE, an RRC connection reconfiguration message used to increase the connection between the UE and the SeNB, where the RRC connection reconfiguration message carries the indication information of the execution sequence.
Here, the order determining unit 41 is specifically configured to determine the execution order according to the quality of the service carried by the SeNB and the data volume that the service needs to be forwarded to the SeNB.
Specifically, the order determination unit 41 may include:
a first processing unit, configured to determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then initiate a random access process on an SeNB when the service quality of the service indicates that the service is a predefined service that is sensitive to delay and insensitive to packet loss rate;
a second processing unit, configured to determine, when the service quality of the service indicates that the service is a predefined service that is insensitive to delay and sensitive to packet loss rate, that the execution sequence is to send an RRC connection reconfiguration complete message first and then initiate a random access process on the SeNB if a data amount to be forwarded exceeds a preset threshold, and otherwise, determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then send an RRC connection reconfiguration complete message;
a third processing unit, configured to determine that the execution sequence is a preset default sequence when the service quality of the service indicates that the service is a predefined service that is sensitive to both delay and packet loss rate, or a service that is insensitive to both delay and packet loss rate.
Referring to fig. 5, an embodiment of the present invention provides a UE implementing the foregoing method, where the UE includes:
a receiving unit 51, configured to receive an RRC connection reconfiguration message sent by a master base station MeNB and used to increase a connection between the UE and an SeNB, where the RRC connection reconfiguration message carries indication information of an execution sequence of a RRC connection reconfiguration complete message sent by the UE and a random access procedure initiated on the SeNB;
a control processing unit 52, configured to send the RRC connection reconfiguration complete message and initiate a random access procedure on the SeNB according to the execution sequence indicated by the indication information.
Here, the execution order is determined according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB.
Finally, the embodiment of the present invention further provides a communication system, which includes the above-mentioned main base station and user equipment, and for economy, the detailed description of the structures of the main base station and the user equipment is omitted here.
In summary, in the embodiment of the present invention, the MeNB determines the execution sequence of the UE sending the RRC connection reconfiguration complete message and initiating the random access procedure on the SeNB, and indicates the execution sequence to the UE through the RRC connection reconfiguration message, so that the UE can be controlled to send the RRC connection reconfiguration complete message and initiate the random access procedure on the SeNB according to the set execution sequence, thereby implementing the configuration of the execution sequence of the two actions. In addition, the embodiment of the invention can also determine the execution sequence according to the service quality and the forwarding data volume of the service so as to meet the actual requirements of different services. In addition, the embodiment of the invention can be compatible with the signaling flow of the existing standard and is easy to realize by carrying the indication information of the execution sequence in the RRC connection reconfiguration message.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A method of configuring multi-connection signaling, comprising:
after receiving a SeNB addition request acknowledgement message sent by a secondary base station SeNB, a master base station MeNB of a user equipment UE determines, according to quality of service carried by the SeNB and a data volume to be forwarded to the SeNB, an execution sequence of sending an RRC connection reconfiguration complete message and initiating a random access process on the SeNB by the UE, including: when the service quality of the service indicates that the service is a predefined service sensitive to time delay and insensitive to packet loss rate, determining that the execution sequence is to firstly send an RRC connection reconfiguration completion message and then initiate a random access process on the SeNB;
when the service quality of the service indicates that the service is a predefined service which is insensitive to time delay and sensitive to packet loss rate, if the data volume needing to be forwarded exceeds a preset threshold, determining that the execution sequence is to send an RRC connection reconfiguration completion message first and then initiate a random access process on the SeNB, otherwise, determining that the execution sequence is to send the RRC connection reconfiguration completion message first and then initiate the random access process on the SeNB;
and the MeNB sends an RRC connection reconfiguration message for increasing the connection between the UE and the SeNB to the UE, wherein the RRC connection reconfiguration message carries the indication information of the execution sequence.
2. The method according to claim 1, wherein the step of determining the execution order according to the quality of service carried by the SeNB and the amount of data that the service needs to be forwarded to the SeNB further comprises:
and when the service quality of the service indicates that the service is a predefined service sensitive to both time delay and packet loss rate or a service insensitive to both time delay and packet loss rate, determining that the execution sequence is a preset default sequence.
3. A method of configuring multi-connection signaling, comprising:
the method comprises the steps that User Equipment (UE) receives RRC connection reconfiguration information which is sent by a main base station (MeNB) and used for increasing connection between the UE and an SeNB, wherein the RRC connection reconfiguration information carries indication information of an execution sequence of a RRC connection reconfiguration completion message sent by the UE and a random access process initiated on the SeNB; the execution sequence is determined according to the service quality carried by the SeNB and the data volume to be forwarded to the SeNB, and includes: when the service quality of the service indicates that the service is a predefined service sensitive to time delay and insensitive to packet loss rate, determining that the execution sequence is to firstly send an RRC connection reconfiguration completion message and then initiate a random access process on the SeNB;
when the service quality of the service indicates that the service is a predefined service which is insensitive to time delay and sensitive to packet loss rate, if the data volume needing to be forwarded exceeds a preset threshold, determining that the execution sequence is to send an RRC connection reconfiguration completion message first and then initiate a random access process on the SeNB, otherwise, determining that the execution sequence is to send the RRC connection reconfiguration completion message first and then initiate the random access process on the SeNB;
and the UE sends the RRC connection reconfiguration completion message and initiates a random access process on the SeNB according to the execution sequence indicated by the indication information.
4. A master base station, comprising:
the sequence determining unit is used for determining the execution sequence of the RRC connection reconfiguration completion message sent by the UE and the random access process initiated on the SeNB after receiving the SeNB addition request confirmation message sent by the secondary base station SeNB; a sequence determining unit, configured to determine the execution sequence according to the quality of the service carried by the SeNB and the amount of data that needs to be forwarded to the SeNB by the service;
a message sending unit, configured to send, to the UE, an RRC connection reconfiguration message used to increase a connection between the UE and the SeNB, where the RRC connection reconfiguration message carries indication information of the execution sequence;
the order determination unit includes:
a first processing unit, configured to determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then initiate a random access process on an SeNB when the service quality of the service indicates that the service is a predefined service that is sensitive to delay and insensitive to packet loss rate;
and a second processing unit, configured to, when the service quality of the service indicates that the service is a predefined service that is insensitive to delay and sensitive to packet loss rate, determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then initiate a random access process on the SeNB if the amount of data that needs to be forwarded exceeds a preset threshold, and otherwise determine that the execution sequence is to send an RRC connection reconfiguration complete message first and then send the random access process on the SeNB.
5. The master base station of claim 4, wherein the order determination unit further comprises:
a third processing unit, configured to determine that the execution sequence is a preset default sequence when the service quality of the service indicates that the service is a predefined service that is sensitive to both delay and packet loss rate, or a service that is insensitive to both delay and packet loss rate.
6. A user device, comprising:
a receiving unit, configured to receive an RRC connection reconfiguration message sent by a master base station MeNB and used to increase a connection between the UE and an SeNB, where the RRC connection reconfiguration message carries indication information of an execution sequence in which the UE sends an RRC connection reconfiguration complete message and initiates a random access procedure on the SeNB; the execution sequence is determined according to the service quality carried by the SeNB and the data volume of the SeNB to which the service needs to be forwarded, and includes: when the service quality of the service indicates that the service is a predefined service sensitive to time delay and insensitive to packet loss rate, determining that the execution sequence is to firstly send an RRC connection reconfiguration completion message and then initiate a random access process on the SeNB;
when the service quality of the service indicates that the service is a predefined service which is insensitive to time delay and sensitive to packet loss rate, if the data volume needing to be forwarded exceeds a preset threshold, determining that the execution sequence is to send an RRC connection reconfiguration completion message first and then initiate a random access process on the SeNB, otherwise, determining that the execution sequence is to send the RRC connection reconfiguration completion message first and then initiate the random access process on the SeNB;
and the control processing unit is used for sending the RRC connection reconfiguration completing message and initiating a random access process on the SeNB according to the execution sequence indicated by the indication information.
7. A communication system comprising a master base station according to any one of claims 4 to 5 and a user equipment according to claim 6.
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| CN107548166B true CN107548166B (en) | 2020-06-23 |
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