CN106470452B - Method and device for initiating access request by terminal - Google Patents
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- 238000012546 transfer Methods 0.000 claims description 3
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
- H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
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Abstract
The application provides a method and a device for a terminal to initiate an access request, which are applied to a terminal side, and comprise the following steps: receiving first indication information sent by a first system base station, wherein the first indication information is used for informing the terminal to initiate wireless connection with the first system base station; and when the terminal is determined to meet the tight coupling entering condition, initiating a radio resource control connection request or a radio resource reconfiguration request to the base station of the first system. The method can be used for cell selection and reselection to the first system when the terminal and the second system keep service, thereby solving the problem that the UE with service transmission can carry out tight coupling operation or switching between access networks controlled by a 3GPP network in time.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to a method and a device for initiating an access request by a terminal.
Background
With the continuous evolution of wireless communication technology and standards, mobile packet services have been developed greatly, and the data throughput of a single terminal is continuously improved. Taking a Long Term Evolution (LTE) system as an example, the data transmission with the downlink maximum rate of 100Mbps can be supported within a 20M bandwidth, and in a subsequent LTE (LTE advanced) system, the data transmission rate will be further improved, even reaching 1 Gbps.
Due to the expansion of terminal data traffic volume, the existing network resources are gradually unconscious, and especially under the condition that a new generation communication technology (such as 3G, LTE) cannot be widely distributed, the user rate and traffic demand cannot be met, and the user experience is worsened. How to prevent and change the situation is a problem which must be considered by operators, and on one hand, the popularization and network deployment of new technologies need to be accelerated; on the other hand, it is desirable to enhance the existing networks and technologies to achieve the goal of rapidly improving network performance. As is well known, in addition to Wireless Network technologies provided by The 3rd Generation Partnership Project (3 GPP), Wireless Local Area Networks (WLANs), especially based on The Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, which are currently in widespread use, have been widely used in home, enterprise, and even internet for hotspot access coverage. Among them, the technical specification proposed by the WiFi Alliance (Wi-Fi) Alliance is the most widely used.
Some operators and companies have proposed to merge WLAN with the existing 3GPP network to realize joint transmission, so as to achieve the purposes of load offloading and improving network performance. The 3GPP SA2(Security Access) provides a mode for selecting a target Access Network for a terminal according to an operator policy by using an Access Network Discovery and Selection Function (ANDSF) scheme.
3GPP R10 defines ANDSF standard, ANDSF is used as access anchor point to realize intelligent network selection, and effective shunting of network access is realized through interactive cooperation of network and terminal, thereby conforming to the operation direction of future multi-network cooperation. The ANDSF makes strategies based on information such as network load, terminal capability, user subscription conditions and the like, helps a terminal user to select an optimal access network system, and achieves collaborative operation of multiple access modes. The ANDSF may be deployed alone or in combination with other network elements. Currently, the industry mainstream view is that ANDSF can be deployed on PCC (Policy Control and Charging) devices.
ANDSF is a WLAN interworking scheme based on a core network, and does not consider an influence on an access network, and furthermore, since ANDSF is a relatively static scheme and cannot adapt to a situation where a network load and a channel quality dynamically change well, a mechanism for executing rules and triggering of WLAN offloading is introduced in R12 WLAN/3GPP wireless interworking.
However, the core network mechanism and the supplementary information mechanism from the radio access network cannot provide the network side with real-time use of load and channel conditions to thereby use radio resources in combination. In addition, data from the same bearer cannot be served over both the 3GPP and WLAN links. The need for WLAN integration with 3GPP networks is therefore re-addressed.
Compared with the WLAN offloading scheme depending on policy and triggering, which has been researched at present, a WLAN with RAN (Radio Access Network ) hierarchical aggregation is integrated with a 3GPP Network, which is referred to as WLAN and 3GPP Network for short, and is tightly coupled, so that better control and utilization of resources on dual connectivity are provided for the overall system. Tight integration and aggregation at the radio layer allows more real-time joint scheduling of the radio resources of the WLAN and the 3GPP network, thus improving user QoS (Quality of Service) and overall system capacity. By better managing the radio resources among the users, the collective throughput of all users can be increased and the overall system capacity provided. Each link scheduling decision can be made to be per packet level based on real-time channel conditions and system usage. The user plane is anchored in a reliable LTE network and performance can be improved by fallback to the LTE network.
The tight coupling between the WLAN and the 3GPP network can be applied to a co-location cooperation scenario (RAN layer integration operation is completed between an eNB (evolved node b) and an AP (access point) through an internal interface) and a non-co-location cooperation scenario (RAN layer integration operation is completed between the eNB and the AP through an external interface).
Before performing the tight coupling access configuration, the base station needs to know the WLAN status of the terminal. When the base station has a connection with the AP, the WLAN status section information of the terminal can be acquired from the WLAN side. The base station and the AP do not have a shared Control plane interface, and the base station cannot realize which AP the UE is connected to at this time, which may cause the base station to not have enough WLAN information (such as WLAN address, MAC (Media Access Control) address or IP address) to route the tightly coupled data packet to the terminal. The base station also cannot realize which AP is the most efficient for load sharing. For the base station to know the necessary information of the WLAN status of the terminal to facilitate tight coupling access, the industry proposes to define the information request and response flow.
The above solution to the problem is that some terminals having service requirements with WLAN cannot perform tight coupling operation or handover between access networks controlled by 3GPP network in time, resulting in data retention and delay. For example, in the scenario of fig. 5, the terminal is shunted to the WLAN network within the range of AP1 in the loosely coupled network within the range of AP1, a service is performed in the WLAN network, and then the terminal reselects a cell entering the cell of the 3GPP network of the tightly coupled system through cell selection, and since the 3GPP cannot know that the terminal has a service, the terminal waits for the UE to initiate a radio access request, so that a tightly coupled operation or a handover between access networks controlled by the 3GPP network cannot be performed.
Disclosure of Invention
The invention provides a method and a device for initiating an access request by a terminal, which enable UE with service transmission to carry out tight coupling operation or switching between access networks controlled by a 3GPP network in time.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a method for a terminal to initiate an access request is applied to a terminal side and comprises the following steps:
receiving first indication information sent by a first system base station, wherein the first indication information is used for informing the terminal to initiate wireless connection with the first system base station;
and when the terminal is determined to meet the tight coupling entering condition, initiating a radio resource control connection request or a radio resource reconfiguration request to the base station of the first system.
Preferably, after initiating the radio resource control connection request or the radio resource reconfiguration request to the base station of the first system, the method further includes: and stopping the selection and/or reselection operation from the first system to the second system according to the first indication information.
Preferably, after initiating the radio resource control connection request or the radio resource reconfiguration request to the base station of the first system, the method further includes: and continuing the selection and/or reselection operation from the second system to the first system according to the first indication information.
Preferably, after initiating the radio resource control connection request or the radio resource reconfiguration request to the base station of the first system, the method further includes: and receiving the connection configuration information sent by the first system base station.
Preferably, after initiating the radio resource control connection request or the radio resource reconfiguration request to the base station of the first system, the method further includes: and reporting the service information of the service to be distributed to the first system in the second system to the base station of the first system.
Preferably, ceasing selection and/or reselection of the first system to the second system comprises one or more of:
initiating a new service from a first system;
stopping the first system to perform detach operation;
stopping evaluation of measurement and/or measurement events corresponding to the selection and/or reselection operation of the first system to the second system.
Preferably, continuing the selection and/or reselection operation from the second system to the first system comprises one or more of:
migrating the service being performed in the second system back to the first system;
an evaluation of the corresponding measurement and/or measurement event is made from the second system to the first system selection and/or reselection.
Preferably, the first indication information is received through a radio resource control, RRC, message.
Preferably, the entry tight coupling condition comprises one or more of:
a service is ongoing with the second system;
reselecting the cell entering the cell of the tight coupling system through the cell according to the preset value;
the data volume which is not sent out by the buffer zone reaches a preset threshold value;
having tight coupling operation capability;
the capability of supporting the switching between the access networks controlled by the third generation partnership project 3GPP network is provided;
according to the pre-configuration, the network side is supported to carry out tight coupling operation, and the switching operation between the access networks controlled by the network is supported;
ongoing traffic support in the second system is offloaded to the first system.
Preferably, the first indication information comprises one or more of:
an indication of whether interoperability of the first system with the second system as defined by the 3GPP release is supported;
an indication of whether network controlled first and second systems are supported for interoperation;
an indication of whether tight coupling of the first system with the second system is supported;
and whether the indication of the radio resource control connection request is initiated when the terminal meeting the preset condition is in an idle state or not is required.
Preferably, the service information comprises one or more of the following: access Point Name (APN) information, quality of service (QoS) information and measurement information;
the QoS information includes: guaranteed bit rate GBR and/or maximum bit rate MBR and/or quality of service scale value QCI;
the measurement information includes: current average rate and/or current data buffering information.
In order to solve the above technical problem, the present invention further provides a method for a terminal to initiate an access request, which is applied to a base station side of a first system, and includes:
sending first indication information to a terminal, wherein the first indication information is used for informing the terminal to initiate wireless connection with the first system base station;
and receiving a radio resource control connection request or a radio resource reconfiguration request fed back by the terminal.
Preferably, after receiving the radio resource control connection request fed back by the terminal, the method further includes: and sending the connection configuration information to the terminal.
Preferably, the first indication information is received through a radio resource control, RRC, message.
Preferably, the RRC message is a system broadcast message or a dedicated RRC message.
Preferably, the first indication information comprises one or more of:
an indication of whether interoperability of the first system with the second system as defined by the 3GPP release is supported;
an indication of whether network controlled first and second systems are supported for interoperation;
an indication of whether tight coupling of the first system with the second system is supported;
and whether the indication of the radio resource control connection request is initiated when the terminal meeting the preset condition is in an idle state or not is required.
Preferably, the connection configuration information comprises one or more of:
instructing the terminal to perform tight coupling configuration information;
switching configuration information between access networks controlled by a third generation partnership project (3 GPP) network;
and indicating the terminal to measure and report the Wireless Local Area Network (WLAN) wireless resources.
In order to solve the above technical problem, the present invention further provides a device for a terminal to initiate an access request, which is disposed at a terminal side, and includes:
a first receiving module, configured to receive first indication information sent by a first system base station, where the first indication information is used to notify the terminal to initiate wireless connection with the first system base station;
a first sending module, configured to initiate a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system when it is determined that the terminal satisfies the tight coupling entry condition.
Preferably, the apparatus further comprises:
the stagnation module is used for stopping the selection and/or reselection operation from the first system to the second system according to the first indication information; or,
and the reselection module is used for continuing the selection and/or reselection operation from the second system to the first system according to the first indication information.
Preferably, the first receiving module is further configured to receive connection configuration information sent by the first system base station.
Preferably, the first sending module is further configured to report service information of a service to be distributed to the first system in the second system to the first system base station.
Preferably, the stall module comprises:
a transfer system unit for initiating a new service from a first system;
the dispatch stopping unit is used for stopping the first system from performing detach operation;
and the measurement stopping unit is used for stopping the measurement and/or the evaluation of the measurement event corresponding to the selection and/or reselection operation from the first system to the second system.
Preferably, the reselection module comprises:
a system migration unit, configured to migrate a service being performed in the second system back to the first system;
and the execution measuring unit is used for selecting and/or reselecting corresponding measurement and/or evaluation of a measurement event from the second system to the first system.
In order to solve the above technical problem, the present invention further provides a device for a terminal to initiate an access request, which is disposed at a base station side of a first system, and includes:
a second sending module, configured to send first indication information to a terminal, where the first indication information is used to notify the terminal to initiate wireless connection with the first system base station;
and the second receiving module is used for receiving the radio resource control connection request or the radio resource reconfiguration request fed back by the terminal.
Compared with the prior art, the invention has the following beneficial effects:
in the method and the device for initiating the access request by the terminal, the base station in the first system carries the indication for requiring the specific idle-state terminal to initiate the radio resource control connection request through the broadcast signaling, and the idle-state UE receives the indication for requiring the initiation of the radio resource control connection request in the broadcast signaling. The method can be used for cell selection and reselection to the first system when the terminal and the second system keep service, thereby solving the problem that the UE with service transmission can carry out tight coupling operation or switching between access networks controlled by a 3GPP network in time.
Drawings
Fig. 1 is a flowchart of a method for a terminal to initiate an access request according to an embodiment of the present invention;
fig. 2 is a flowchart of another method for a terminal to initiate an access request according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for a terminal to initiate an access request according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another apparatus for initiating an access request by a terminal according to an embodiment of the present invention;
fig. 5 is a schematic view of a scenario in which a terminal initiates an access request according to an embodiment of the present invention;
fig. 6 is a schematic view of another scenario in which a terminal initiates an access request according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for a terminal to initiate an access request according to embodiment 1 of the present invention;
fig. 8 is a flowchart of a method for a terminal to initiate an access request according to embodiment 2 of the present invention;
fig. 9 is a flowchart of a method for a terminal to initiate an access request according to embodiment 3 of the present invention;
fig. 10 is a flowchart of a method for a terminal to initiate an access request according to embodiment 4 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the embodiments of the present invention with reference to the accompanying drawings is provided, and it should be noted that, in the case of conflict, features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.
As shown in fig. 1, an embodiment of the present invention provides a method for a terminal to initiate an access request, where the method is applied to a terminal side, and includes:
s11, receiving first indication information sent by a first system base station, wherein the first indication information is used for informing the terminal to initiate wireless connection with the first system base station;
s12, when the terminal is determined to meet the tight coupling entering condition, initiating a radio resource control connection request or a radio resource reconfiguration request to the base station of the first system.
Step S12 is followed by:
stopping the selection and/or reselection operation of the first system to a second system according to the first indication information; or continuing the selection and/or reselection operation from the second system to the first system according to the first indication information.
And receiving the connection configuration information sent by the first system base station.
And reporting the service information of the service to be distributed to the first system in the second system to the base station of the first system.
Wherein ceasing selection and/or reselection operations of the first system to the second system comprises one or more of:
initiating a new service from a first system;
stopping the first system to perform detach operation;
stopping evaluation of measurement and/or measurement events corresponding to the selection and/or reselection operation of the first system to the second system.
Continuing the selection and/or reselection operation from the second system to the first system comprises one or more of:
migrating the service being performed in the second system back to the first system;
an evaluation of the corresponding measurement and/or measurement event is made from the second system to the first system selection and/or reselection.
In step S11, the first indication information is received through a radio resource control RRC message.
The entry tight coupling condition includes one or more of:
a service is ongoing with the second system;
reselecting the cell entering the cell of the tight coupling system through the cell according to the preset value;
the data volume which is not sent out by the buffer zone reaches a preset threshold value;
having tight coupling operation capability;
the capability of supporting the switching between the access networks controlled by the third generation partnership project 3GPP network is provided;
according to the pre-configuration, the network side is supported to carry out tight coupling operation, and the switching operation between the access networks controlled by the network is supported;
ongoing traffic support in the second system is offloaded to the first system.
The first indication information comprises one or more of:
an indication of whether interoperability of the first system with the second system as defined by the 3GPP release is supported;
an indication of whether network controlled first and second systems are supported for interoperation;
an indication of whether tight coupling of the first system with the second system is supported;
and whether the indication of the radio resource control connection request is initiated when the terminal meeting the preset condition is in an idle state or not is required.
The service information includes one or more of: access Point Name (APN) information, quality of service (QoS) information and measurement information;
the QoS information includes: guaranteed bit rate GBR and/or maximum bit rate MBR and/or quality of service scale value QCI;
the measurement information includes: current average rate and/or current data buffering information.
As shown in fig. 2, an embodiment of the present invention further provides a method for a terminal to initiate an access request, where the method is applied to a base station side of a first system, and includes:
s21, sending first indication information to the terminal, wherein the first indication information is used for indicating the terminal;
s22, receiving the radio resource control connection request or the radio resource reconfiguration request fed back by the terminal.
Step S22 is followed by: and sending the connection configuration information to the terminal.
In step S21, the first indication information is received through a radio resource control RRC message. The RRC message is a system broadcast message or a special RRC message.
Wherein the first indication information comprises one or more of:
an indication of whether interoperability of the first system with the second system as defined by the 3GPP release is supported;
an indication of whether network controlled first and second systems are supported for interoperation;
an indication of whether tight coupling of the first system with the second system is supported;
and whether the indication of the radio resource control connection request is initiated when the terminal meeting the preset condition is in an idle state or not is required.
The connection configuration information includes one or more of:
instructing the terminal to perform tight coupling configuration information;
switching configuration information between access networks controlled by a third generation partnership project (3 GPP) network;
and indicating the terminal to measure and report the Wireless Local Area Network (WLAN) wireless resources.
As shown in fig. 3, an embodiment of the present invention further provides an apparatus for a terminal to initiate an access request, where the apparatus is disposed at a terminal side, and includes:
a first receiving module, configured to receive first indication information sent by a first system base station, where the first indication information is used to notify the terminal to initiate wireless connection with the first system base station;
a first sending module, configured to initiate a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system when it is determined that the terminal satisfies the tight coupling entry condition.
The device further comprises:
the stagnation module is used for stopping the selection and/or reselection operation from the first system to the second system according to the first indication information; or,
and the reselection module is used for continuing the selection and/or reselection operation from the second system to the first system according to the first indication information.
The first receiving module is further configured to receive connection configuration information sent by the first system base station
The first sending module is further configured to report service information of a service to be distributed to the first system in the second system to the first system base station
Wherein the stall module comprises:
a transfer system unit for initiating a new service from a first system;
the dispatch stopping unit is used for stopping the first system from performing detach operation;
and the measurement stopping unit is used for stopping the measurement and/or the evaluation of the measurement event corresponding to the selection and/or reselection operation from the first system to the second system.
The reselection module comprises:
a system migration unit, configured to migrate a service being performed in the second system back to the first system;
and the execution measuring unit is used for selecting and/or reselecting corresponding measurement and/or evaluation of a measurement event from the second system to the first system.
As shown in fig. 4, an apparatus for a terminal to initiate an access request is disposed at a base station side of a first system, and includes:
a second sending module, configured to send first indication information to a terminal, where the first indication information is used to notify the terminal to initiate wireless connection with the first system base station;
and the second receiving module is used for receiving the radio resource control connection request or the radio resource reconfiguration request fed back by the terminal.
The embodiment of the invention can realize the switching between the access networks which are not across base stations, tightly coupled and controlled, and comprises the following steps:
the base station in the first system carries the first indication information through RRC message.
And the idle state UE receives the first indication information in the RRC message, judges that the idle state UE is the terminal meeting the tight coupling condition, and then initiates a radio resource control connection request or a radio resource reconfiguration request.
The RRC message may be a system broadcast message or a dedicated RRC message.
The specific terminal is determined in one or more of the following conditions:
1. a terminal having service with the second system;
2. after manual setting, the terminal enters the cell of the tight coupling system through cell reselection;
3. self-judging by a certain principle, for example, a terminal whose data volume which is not sent out by the buffer reaches a certain threshold value;
4. a terminal with tight coupling operation capability;
5. a terminal having a handover capability between access networks supporting 3GPP network control;
6. a terminal which allows the network side to carry out tight coupling operation through configuration and allows the switching operation between the access networks controlled by the network through configuration;
7. ongoing traffic in the second system may be shunted to terminals in the first system.
The "idle UE receives the first indication information in the RRC message" may be one of the following indications:
whether to support a first system/second system interoperability indication (e.g. R13 LTE/WLAN interoperability indication) defined by a certain release of 3GPP
A first system/second system (e.g., LTE/WLAN) interoperability indication of whether network control is supported;
a first system/second system (e.g., LTE/WLAN) tight coupling (radio interworking) indication is supported;
an indication of whether or not a UE satisfying a preset condition, which is specified in a protocol (refer to a judgment condition of a specific terminal), is to initiate a radio resource control connection request in an idle state.
After receiving the wireless control connection request, the base station in the first system performs one of the following operations:
giving the UE tight coupling configuration;
switching configuration between access networks controlled by a 3GPP network;
and the terminal carries out WLAN wireless resource measurement and reporting.
When the UE has a service in the second system, the UE reports the service information currently in the second system to the first network when or after the UE accesses the first system. The service is a service which can be distributed to a first network.
Wherein the service information at least comprises one of the following attributes:
a) APN information of related services
b) QoS information of related service, (GBR and/or MBR and/or QCI, etc.)
c) Measurement information of related services, such as current average rate and/or current data caching condition.
The UE obtains the first indication information from the cell system message in the first system, and may further perform the following operations:
and the UE stops the selection and/or reselection related operation from the first system to the second system according to the first indication information. But if the UE has traffic in the second system at this time, the UE may still perform selection and/or reselection related operations from the second system to the first system.
The "stopping selection and/or reselection related operations from the first system to the second system" comprises at least one of the following characteristics:
a new service of the UE needs to be initiated from the first system;
the UE cannot perform the detach operation at the first system due to the first system/second system interoperation;
the evaluation of the measurement and/or measurement event related to the "selection and/or reselection from the first system to the second system" is stopped.
The "selection and/or reselection related operation from the second system to the first system" comprises at least one of the following characteristics:
1. the UE may migrate the traffic that is ongoing in the second system back to the first system;
2. an evaluation of the measurement and/or measurement event related to "selection and/or reselection from the second system to the first system" is still performed.
The ongoing service in the second system is a service supporting offloading to the first system. For example, if there is a service in the WLAN, after receiving an indication from the network side, the UE needs to initiate a new service in LTE, and the old service can only be migrated from WLAN back to LTE.
The embodiment of the present invention is described by taking an example of tight coupling between an LTE System and a WLAN, and for a UMTS (Universal Mobile Telecommunications System), the implementation principle of the technical solution provided by the embodiment of the present invention is the same.
In the embodiment of the invention, the UE is positioned at a WLAN/LTE integrated base station site, and both the UE and the integrated base station site support a WLAN shunt scheme of tight coupling of LTE and WLAN. The same applies to scenarios such as ideal/non-ideal connections between WLAN and 3GPP network, and tight coupling of dual-connected small cells with WLAN.
The first embodiment of the present invention will be described with reference to the accompanying drawings.
Example 1
In embodiment 1 of the present invention, with fig. 5 as an application scenario, a terminal maintains connection with an AP1, and meanwhile, a cell reselects and enters an LTE and AP2 to form a tight coupling system, which moves from location 1 to location 2.
Fig. 7 shows a process in which a terminal in a RAT2 (e.g., 3GPP access network) and RAT1 (e.g., WLAN) tightly coupled system is notified by a RAT2 system to initiate a radio access request according to an embodiment of the present invention, where the process includes:
step 101, adding a first indication information in the broadcast signaling by the base station in the tight coupling system.
And 102, the idle-state UE receives the first indication information in the broadcast signaling and judges that the idle-state UE is the specific terminal.
The terminal of the present embodiment is a terminal that has a capability of a tight coupling operation and has a service ongoing with the second system (WLAN system).
Wherein, the UE acquires the first indication information from the cell system message in the first system, and the UE may further perform the following operations:
and the UE stops the selection and/or reselection related operation from the system 1 to the system 2 according to the first indication information. But if the UE has traffic in system 2 at this time, the UE may still perform selection and/or reselection related operations from system 2 to system 1.
Step 103, the specific idle UE initiates a radio resource control connection request to the base station.
Step 104, the base station sends the WLAN measurement parameters to the terminal, and the WLAN measurement parameters at least include one of the following: WLAN measurement object parameters and WLAN measurement report configuration parameters.
Example 2
Embodiment 2 of the present invention will be described with reference to the drawings.
In embodiment 2 of the present invention, with fig. 6 as an application scenario, a terminal maintains connection with an AP1, and meanwhile, a cell reselects and enters an LTE and AP2 to form a tight coupling system, which moves from location 1 to location 2.
Fig. 8 shows a process in which a terminal in a RAT2 (e.g., 3GPP access network) and RAT1 (e.g., WLAN) tightly coupled system is notified by a RAT2 system to initiate a radio access request according to an embodiment of the present invention, where the process includes:
step 201, the base station in the tight coupling system adds an indication in the broadcast signaling. The above indication requires a specific idle state terminal to initiate a radio access request.
Step 202, the idle UE receives the indication of the radio resource control connection request in the broadcast signaling, and determines that it is a specific terminal.
The terminal of this embodiment is a terminal having a capability of supporting handover between access networks controlled by a 3GPP network, and has an ongoing service with a second system (WLAN system), and has just reselected a cell to enter a scenario one tightly coupled system.
Step 203, the special idle UE initiates a radio resource control connection request to the base station.
When the UE has a service in the second system, the UE reports the service information currently performed in the second system to the first network when or after the UE accesses the first system.
Step 204, the base station sends WLAN measurement parameters to the terminal, where the WLAN measurement parameters at least include one of the following: WLAN measurement object parameters and WLAN measurement report configuration parameters.
Example 3
Embodiment 3 of the present invention will be described with reference to the drawings.
In embodiment 3 of the present invention, with reference to fig. 5 as an application scenario, a terminal maintains connection with an AP1, and meanwhile, a cell reselects and enters an LTE and AP2 to form a tight coupling system, and in a process of moving from a location 1 to a location 2, an RRC connection request process with the system 1 is completed first, and the system enters a connected state.
Fig. 9 shows that a terminal in a RAT2 (e.g., 3GPP access network) and RAT1 (e.g., WLAN) tightly coupled system is notified of first indication information by a RAT2 system to a specific UE, where the first indication information includes:
step 301, the base station in the tight coupling system adds an indication to the specific UE in dedicated RRC signaling.
The terminal of this embodiment is capable of tight coupling operation and the terminal is manually provided with a preferred tight coupling system.
Step 302, the UE receives the first indication information in the dedicated RRC signaling.
Step 303, the specific UE initiates a radio resource reconfiguration request to the base station.
Step 304, the base station sends the relevant configuration parameters of tight coupling to the terminal;
the relevant configuration parameters for the coupling include: MAC address and BSSID of AP2 of WLAN, IP address of user plane data of base station, etc.
Example 4
The fourth embodiment of the present invention will be described with reference to the drawings.
In embodiment 4 of the present invention, with fig. 6 as an application scenario, a terminal maintains connection with an AP1, and meanwhile, a cell reselects and enters a tight coupling system formed by LTE and AP2, thereby moving from location 2 to location 3.
Fig. 10 shows a process in which a terminal in a RAT2 (e.g., 3GPP access network) and RAT1 (e.g., WLAN) tightly coupled system is notified by a RAT2 system to initiate a radio access request according to an embodiment of the present invention, where the process includes:
step 401, adding an indication in a broadcast signaling by a base station in a tight coupling system; the above indication requires a specific idle state terminal to initiate a radio access request.
Step 402, the idle UE receives an indication that it requires to initiate a radio resource control connection request in the broadcast signaling, and determines that it is a specific terminal.
The terminal of this embodiment has a tight coupling operation capability, and self-determines with the terminal by a certain principle, for example, the amount of data that is not sent out by the buffer reaches a certain threshold.
Step 403, the UE in idle state initiates a radio resource control connection request to the base station.
Step 404, the base station sends the relevant configuration parameters of tight coupling to the terminal.
Although the embodiments of the present invention have been described above, the contents thereof are merely embodiments adopted to facilitate understanding of the technical aspects of the present invention, and are not intended to limit the present invention. It will be apparent to persons skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (19)
1. A method for a terminal to initiate an access request is applied to a terminal side, and is characterized by comprising the following steps:
receiving first indication information sent by a first system base station, wherein the first indication information is used for informing the terminal to initiate wireless connection with the first system base station, and the terminal is moved to a tight coupling system formed by a first system and a second system and has service requirements with the second system;
when the terminal is determined to meet the tight coupling entering condition, initiating a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system; after initiating a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system, the method further comprises:
stopping the selection and/or reselection operation from the first system to the second system according to the first indication information, and if the terminal has service in the second system, continuing the selection and/or reselection operation from the second system to the first system; and,
the continuing selection and/or reselection operations from the second system to the first system comprises one or more of: migrating the service being performed in the second system back to the first system; an evaluation of the corresponding measurement and/or measurement event is made from the second system to the first system selection and/or reselection.
2. The method of claim 1, wherein: after initiating a radio resource control connection request or a radio resource reconfiguration request to the base station of the first system, the method further includes: and receiving the connection configuration information sent by the first system base station.
3. The method of claim 1, wherein: after initiating a radio resource control connection request or a radio resource reconfiguration request to the base station of the first system, the method further includes: and reporting the service information of the service to be distributed to the first system in the second system to the base station of the first system.
4. The method of claim 1, wherein: ceasing selection and/or reselection operations of the first system to a second system comprises one or more of:
initiating a new service from a first system;
stopping the first system to perform detach operation;
stopping evaluation of measurement and/or measurement events corresponding to the selection and/or reselection operation of the first system to the second system.
5. The method of claim 1, wherein: receiving the first indication information through a Radio Resource Control (RRC) message.
6. The method of claim 1, wherein: the entry tight coupling condition includes one or more of:
a service is ongoing with the second system;
reselecting the cell entering the cell of the tight coupling system through the cell according to the preset value;
the data volume which is not sent out by the buffer zone reaches a preset threshold value;
having tight coupling operation capability;
the capability of supporting the switching between the access networks controlled by the third generation partnership project 3GPP network is provided;
according to the pre-configuration, the network side is supported to carry out tight coupling operation, and the switching operation between the access networks controlled by the network is supported;
ongoing traffic support in the second system is offloaded to the first system.
7. The method of claim 1, wherein the first indication information comprises one or more of:
an indication of whether interoperability of the first system with the second system as defined by the 3GPP release is supported;
an indication of whether network controlled first and second systems are supported for interoperation;
an indication of whether tight coupling of the first system with the second system is supported;
and whether the indication of the radio resource control connection request is initiated when the terminal meeting the preset condition is in an idle state or not is required.
8. The method of claim 3, wherein: the service information includes one or more of: access Point Name (APN) information, quality of service (QoS) information and measurement information;
the QoS information includes: guaranteed bit rate GBR and/or maximum bit rate MBR and/or quality of service scale value QCI;
the measurement information includes: current average rate and/or current data buffering information.
9. A method for a terminal to initiate an access request is applied to a base station side of a first system, and is characterized by comprising the following steps:
sending first indication information to a terminal, wherein the first indication information is used for informing the terminal to initiate wireless connection with a first system base station, and the terminal is moved to a tight coupling system formed by a first system and a second system and has service requirements with the second system;
receiving a radio resource control connection request or a radio resource reconfiguration request fed back by a terminal;
the first indication information is further used for: after initiating a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system, stopping selection and/or reselection operations from the first system to a second system, and if the terminal has a service in the second system, using the first indication information to continue the selection and/or reselection operations from the second system to the first system;
the first indication information, when used to continue the selection and/or reselection operation from the second system to the first system, is specifically used for one or more of the following: migrating the service being performed in the second system back to the first system; an evaluation of the corresponding measurement and/or measurement event is made from the second system to the first system selection and/or reselection.
10. The method of claim 9, wherein: after receiving the radio resource control connection request fed back by the terminal, the method further comprises the following steps: and sending the connection configuration information to the terminal.
11. The method of claim 9, wherein: receiving the first indication information through a Radio Resource Control (RRC) message.
12. The method of claim 11, wherein: the RRC message is a system broadcast message or a special RRC message.
13. The method of claim 9, wherein: the first indication information comprises one or more of:
an indication of whether interoperability of the first system with the second system as defined by the 3GPP release is supported;
an indication of whether network controlled first and second systems are supported for interoperation;
an indication of whether tight coupling of the first system with the second system is supported;
and whether the indication of the radio resource control connection request is initiated when the terminal meeting the preset condition is in an idle state or not is required.
14. The method of claim 10, wherein: the connection configuration information includes one or more of:
instructing the terminal to perform tight coupling configuration information;
switching configuration information between access networks controlled by a third generation partnership project (3 GPP) network;
and indicating the terminal to measure and report the Wireless Local Area Network (WLAN) wireless resources.
15. An apparatus for a terminal to initiate an access request, which is disposed at a terminal side, includes:
a first receiving module, configured to receive first indication information sent by a first system base station, where the first indication information is used to notify the terminal to initiate a wireless connection with the first system base station, and the terminal is a terminal that moves to a tight coupling system formed by a first system and a second system and has a service requirement with the second system;
a first sending module, configured to initiate a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system when it is determined that the terminal satisfies a tight coupling entry condition;
the device further comprises: a stagnation module, configured to stop a selection and/or reselection operation from the first system to a second system according to the first indication information after initiating a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system; or, the reselection module is configured to continue a selection and/or reselection operation from the second system to the first system according to the first indication information if the terminal has a service running in the second system;
the reselection module comprises: a system migration unit, configured to migrate a service being performed in the second system back to the first system; and the execution measuring unit is used for selecting and/or reselecting corresponding measurement and/or evaluation of a measurement event from the second system to the first system.
16. The apparatus of claim 15, wherein: the first receiving module is further configured to receive connection configuration information sent by the first system base station.
17. The apparatus of claim 15, wherein: the first sending module is further configured to report service information of a service to be distributed to the first system in the second system to the first system base station.
18. The apparatus of claim 15, wherein: the stall module includes:
a transfer system unit for initiating a new service from a first system;
the dispatch stopping unit is used for stopping the first system from performing detach operation;
and the measurement stopping unit is used for stopping the measurement and/or the evaluation of the measurement event corresponding to the selection and/or reselection operation from the first system to the second system.
19. A device for a terminal to initiate an access request is arranged at a base station side of a first system, and is characterized by comprising:
a second sending module, configured to send first indication information to a terminal, where the first indication information is used to notify the terminal to initiate a wireless connection with a base station of the first system, and the terminal is a terminal that moves to a tight coupling system formed by the first system and the second system and has a service requirement with the second system;
a second receiving module, configured to receive a radio resource control connection request or a radio resource reconfiguration request fed back by the terminal;
the first indication information is further used for: after initiating a radio resource control connection request or a radio resource reconfiguration request to a base station of the first system, stopping selection and/or reselection operations from the first system to a second system, and if the terminal has a service in the second system, using the first indication information to continue the selection and/or reselection operations from the second system to the first system;
the first indication information, when used to continue the selection and/or reselection operation from the second system to the first system, is specifically used for one or more of the following: migrating the service being performed in the second system back to the first system; an evaluation of the corresponding measurement and/or measurement event is made from the second system to the first system selection and/or reselection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510508965.6A CN106470452B (en) | 2015-08-18 | 2015-08-18 | Method and device for initiating access request by terminal |
| PCT/CN2016/079595 WO2016180178A1 (en) | 2015-08-18 | 2016-04-18 | Method and device for terminal to launch access request |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510508965.6A CN106470452B (en) | 2015-08-18 | 2015-08-18 | Method and device for initiating access request by terminal |
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| CN106470452B true CN106470452B (en) | 2021-08-13 |
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| WO (1) | WO2016180178A1 (en) |
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| WO2016180178A1 (en) | 2016-11-17 |
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