CN108377560B - Information sending and receiving method and device - Google Patents
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Abstract
The application discloses an information sending and receiving method and device, which are used for indicating CEMode information of UE (user equipment) for MME (mobility management entity), so that the MME can determine the timing duration of a timer for monitoring signaling interaction duration in the NAS signaling process between the UE and the MME according to the CEMode information of the UE, and the success rate of the NAS signaling process between the UE and the MME is improved. The embodiment of the application provides an information sending method, which comprises the following steps: determining coverage enhancement mode CEMode information of User Equipment (UE); and sending the CEMode information of the UE to a Mobility Management Entity (MME).
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an information sending and receiving method and apparatus.
Background
In a narrowband Band Internet of Things (NBIoT) or enhanced Machine Communication (eMTC) system, a third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) introduces a concept of Coverage Enhancement Mode (CEMode), an evolved Node B (eNB) divides a space resource, and different random access resources (time domain, frequency domain, preamble) are planned for different Coverage Enhancement levels, when User Equipment (UE) randomly accesses to an eNB, system broadcast information broadcasts Packet Random Access Channel (PRACH) resource (time domain, frequency domain, preamble) information associated with different coverage enhancement levels, the UE in a certain enhanced coverage level may use a corresponding Random Access resource, and the eNB may determine a coverage enhancement mode currently used by the UE according to the Access resource used by the UE. The UE may indicate, in a subsequent Radio Resource Control Connection Setup Complete (RRC Connection Setup Complete) message, the eNB supports the CEMode level, and the eNB indicates, through Radio Resource Control Connection Setup (Radio Resource Control Connection Setup) message or Radio Resource Control Connection reconfiguration (RRCConnectionReCfg) message, the UE to enable the coverage enhancement mode level. This is the configuration procedure of the CEMode level between eNB and UE.
The introduction of CEMode is to consider the radio conditions of the UE, and is divided into four CE levels, namely 5 decibel (dB), 10dB, 15dB and 20dB, and the four CE levels are divided into two categories: CEModeA and CEModeB, i.e., CE level 1(5dB) and CE level 2(10dB), are classified as CEModeA, and CE level 3(15dB) and CE level 4(20dB) are classified as CEModeB. CEModeA is a good wireless coverage condition, and requires fewer repeated transmissions to successfully complete data transmission. The CEModeB is a situation with poor radio coverage, and requires a large number of repeated transmissions to complete data transmission. The NAS timer in the Evolved Packet System (EPS) Mobility Management (EMM) and Session Management (ESM) signaling procedure of the EPS System in the Non-Access Stratum (NAS) signaling protocol (TS24.301) between the UE and the Mobility Management Entity (MME) introduces a multiplication factor, which indicates that when NAS signaling interaction is performed between an MME supporting the wideband Access WB-S1 mode and a type Cat-M1UE terminal in the cemobb, the MME must calculate NAS timer values in the TS24.301 tables 10.2.2 and 10.3.2 using the multiplication factor, and the timing duration of the calculated NAS timer is used in the corresponding NAS procedure, and must be calculated at the beginning of the NAS procedure until the NAS procedure is finished, terminated, or terminated. If the NAS signaling duration mechanism is still adopted, the NAS signaling procedure may be terminated after five times of repeated transmissions.
In summary, in the existing scheme, the MME cannot acquire the current CEMode level of the UE, so that the MME cannot calculate the timing duration of the corresponding NAS timer according to the current CEMode level of the UE, which may cause a low success rate of the NAS signaling process between the UE and the MME.
Disclosure of Invention
The embodiment of the application provides an information sending and receiving method and device, which are used for indicating CEMode information of UE (user equipment) for MME (mobility management entity), so that the MME can determine the timing duration of a timer for monitoring signaling interaction duration in the NAS signaling process between the UE and the MME according to the CEMode information of the UE, and the success rate of the NAS signaling process between the UE and the MME is improved.
On a base station side, an embodiment of the present application provides an information sending method, including:
determining coverage enhancement mode CEMode information of User Equipment (UE);
and sending the CEMode information of the UE to a Mobility Management Entity (MME).
According to the information sending method provided by the embodiment of the application, the CEMode information of the UE is determined, and the CEMode information of the UE is sent to the MME, so that the MME can determine the timing duration of the timer for monitoring the signaling interaction duration in the NAS signaling process between the UE and the MME according to the obtained CEMode information of the UE, the failure of the NAS signaling process between the UE and the MME due to the fact that the timing duration of the timer is not consistent with the CEMode information of the UE is avoided, the success rate of the NAS signaling process between the UE and the MME is improved, and user experience can be improved.
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the sending the CEMode information of the UE to the MME specifically includes:
and after the RRC connection with the UE is established, sending initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE.
Preferably, after sending the CEMode information of the UE to the MME, the method further includes:
and sending the latest CEMode information of the UE to an MME.
Preferably, the sending the latest CEMode information of the UE to the MME specifically includes:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE.
Corresponding to the method on the base station side, the embodiment of the application provides an information receiving method, which comprises the following steps:
a mobility management entity MME receives information sent by an access network;
and the MME acquires the coverage enhancement mode CEMode information of the user equipment UE from the information.
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the receiving, by the MME, information sent by the access network specifically includes:
after the UE and an evolved node B (eNB) complete the establishment of Radio Resource Control (RRC) connection, the MME receives initial UE information sent by the eNB, wherein the initial UE information carries CEMode information of the UE;
the acquiring, by the MME, coverage enhancement mode CEMode information of the UE from the information specifically includes:
and receiving initial UE information sent by the eNB from the MME to acquire the CEMode information of the UE.
Preferably, after obtaining the coverage enhancement mode CEMode information of the user equipment UE from the information, the method further includes:
and determining the latest CEMode information of the UE.
Preferably, the determining the latest CEMode information of the UE specifically includes:
when the UE is in a connected state, when the UE sends a non-access stratum (NAS) message to an evolved node B (eNB), if the CEMode information of the UE is changed, the MME receives an uplink NAS transmission message sent by the eNB, the NAS transmission message carries the latest CEMode information of the UE, and the MME acquires the latest CEMode information of the UE from the NAS transmission message;
or, when the UE is in a connected state, the eNB acquires the latest cemmode information of the UE by triggering a UE capability query process, and if the latest cemmode information of the UE is different from the cemmode information of the UE carried in the initial UE information, the MME receives a capability information indication message sent by the eNB, where the capability information indication message of the UE carries the latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source eNB to a target eNB, the MME receives a path switching request message sent by the target eNB, where the path switching request message carries latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the path switching request message;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the MME receives a handover notification message sent by the source eNB, where the handover notification message carries latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the handover notification message;
or, when the UE is in a connected state, and the UE moves between two cells under one base station or moves from a cell center to a cell edge, if the eNB detects that the cemmode information of the UE changes, the MME receives a context change indication message of the UE sent by the eNB, where the context change indication message of the UE carries the latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the context change indication message of the UE.
Preferably, after the MME acquires the CEMode information of the UE from the information, the method further includes:
and the MME determines the timing duration of an NAS timer according to the CEMode information, wherein the timing duration is used for monitoring the NAS signaling interaction duration between the UE and the MME.
Correspondingly to the above method, on the base station side, an embodiment of the present application further provides an information sending apparatus, including:
a determining unit, configured to determine coverage enhancement mode (CEMode) information of a User Equipment (UE);
and the sending unit is used for sending the CEMode information of the UE to a Mobility Management Entity (MME).
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the sending unit is specifically configured to:
and after the RRC connection with the UE is established, sending initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE.
Preferably, the sending unit is further configured to:
and after the CEMode information of the UE is sent to the MME, sending the latest CEMode information of the UE to the MME.
Preferably, the sending unit sends the latest CEMode information of the UE to an MME, and specifically includes:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE.
Correspondingly to the above method, at an MME side, an embodiment of the present application further provides an information receiving apparatus, where the apparatus includes:
a receiving unit; the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving information sent by an access network;
an acquisition unit; and the method is used for acquiring coverage enhancement mode CEMode information of the user equipment UE from the information.
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the receiving unit is specifically configured to: after the UE and an evolved node B (eNB) complete the establishment of Radio Resource Control (RRC) connection, receiving initial UE information sent by the eNB, wherein the initial UE information carries the latest CEMode information; the obtaining unit is specifically configured to: and acquiring the latest CEMode information of the UE from the initial UE information received by the receiving unit and sent by the eNB.
Preferably, the obtaining unit is further configured to:
and determining the latest CEMode information of the UE.
Preferably, the determining, by the obtaining unit, the latest CEMode information of the UE specifically includes:
when the UE is in a connected state, when the UE sends a non-access stratum (NAS) message to an evolved node B (eNB), if the CEMode information of the UE is changed, receiving an uplink NAS transmission message sent by the eNB, wherein the NAS transmission message carries the latest CEMode information of the UE, and acquiring the latest CEMode information of the UE from the NAS transmission message;
or, when the UE is in a connected state, the eNB acquires the latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, receives a capability information indication message sent by the eNB, where the latest CEMode information of the UE is carried in the capability information indication message of the UE, and acquires the latest CEMode information of the UE from the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source eNB to a target eNB, receiving a path switching request message sent by the target eNB, where the path switching request message carries latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the path switching request message;
or, when the UE is in a connected state and needs to be switched from a source eNB to a target eNB through the MME, receiving a handover notification message sent by the source eNB, where the handover notification message carries latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the handover notification message;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if the eNB detects that the cemmode information of the UE changes, receiving a context change indication message of the UE sent by the eNB, where the context change indication message of the UE carries the latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the context change indication message of the UE.
Preferably, the obtaining unit is further configured to:
and determining the timing duration of an NAS timer according to the CEMode information, wherein the timing duration is used for monitoring the NAS signaling interaction duration between the UE and the MME.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of an information sending method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of another information sending method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of an information receiving method according to an embodiment of the present application;
fig. 4 is a schematic flowchart of another information receiving method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an information sending apparatus according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an information receiving apparatus according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides an information sending and receiving method and device, which are used for indicating CEMode information of UE (user equipment) for MME (mobility management entity), so that the MME can determine the timing duration of a timer for monitoring signaling interaction duration in the NAS signaling process between the UE and the MME according to the CEMode information of the UE, and the success rate of the NAS signaling process between the UE and the MME is improved.
On a base station side, an embodiment of the present application provides an information sending method, as shown in fig. 1, the method includes:
s101, determining CEMode information of the UE;
and S102, sending the CEMode information of the UE to an MME.
According to the information sending method provided by the embodiment of the application, the CEMode information of the UE is determined, and the CEMode information of the UE is sent to the MME, so that the MME can determine the timing duration of the timer for monitoring the signaling interaction duration in the NAS signaling process between the UE and the MME according to the obtained CEMode information of the UE, the failure of the NAS signaling process between the UE and the MME due to the fact that the timing duration of the timer is not consistent with the CEMode information of the UE is avoided, the success rate of the NAS signaling process between the UE and the MME is improved, and the user experience can be improved.
Preferably, the CEMode information of the UE includes a CEMode indicator (CEMode indicator) for indicating a CEMode class of the UE to the MME.
The CEMode classes of the UE are divided into two categories: CEModeA and CEModeB.
The specific division of the CEMode level and the influence of the CEMode level on the NAS signaling process between the UE and the MME are described in detail in the background technology of the present application, and are not described herein again.
Preferably, the sending the CEMode information of the UE to the MME specifically includes:
and after the RRC connection with the UE is established, sending initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE.
The specific content of the initial UE information is shown in table 1:
direction (Direction) eNB → MME
TABLE 1
As can be seen, the CEMode Indicator in table 1 is the CEMode information carried in the initial UE information.
Preferably, after sending the CEMode information of the UE to the MME, the method further includes:
and sending the latest CEMode information of the UE to an MME.
When the UE is in a connected state, the CEMode information of the UE may change along with the movement of the UE, and the latest CEMode information of the UE is sent to the MME, so that the MME can determine the timing duration of a timer for monitoring the NAS signaling interaction duration corresponding to the latest CEMode information according to the latest CEMode information, and the failure of the NAS signaling process between the UE and the MME, caused by the fact that the timing duration of the NAS signaling interaction timer is not consistent with the current CEMode information of the UE due to the change of the CEMode information of the UE, is avoided, and therefore the success rate of the NAS signaling process between the UE and the MME is improved, and the experience of a user can be improved.
Preferably, the sending the latest CEMode information of the UE to the MME specifically includes the following steps:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
the specific contents of the uplink NAS transport message are shown in table 2.
Direction:eNB→MME
TABLE 2
As can be seen, the CEMode Indicator in table 2 is the CEMode information carried in the uplink NAS transport message.
Or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
the specific contents of the capability information indication message of the UE are shown in table 3.
Direction:eNB→MME
TABLE 3
As can be seen, the mode Indicator in table 3 is the mode information carried in the capability information indication message of the UE.
Or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE; it should be noted that, in the process of accessing the target eNB by the UE, a manner of acquiring the cemmode information of the current UE by the eNB is consistent with the configuration process of the cemmode level between the eNB and the UE, which is described in the background of the present application, and is not described herein again;
the specific contents of the path switch request message are shown in table 4.
Direction:eNB→MME
TABLE 4
As can be seen, the CEMode Indicator in table 4 is the CEMode information carried in the path switch request message.
Or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
the specific contents of the handover notification message are shown in table 5.
Direction:eNB→MME
TABLE 5
As can be seen, the CEMode Indicator in table 5 is the CEMode information carried in the translation notification message.
Or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE; the eNB may detect that the CEMode information of the UE is changed during data transmission between the UE and the eNB.
The specific contents of the context change message of the UE are shown in table 6.
Direction:eNB→MME
TABLE 6
As can be seen, the CEMode Indicator in table 6 is the CEMode information carried in the context change message of the UE.
It should be noted that, because the timing duration of the timer for monitoring the NAS signaling interaction duration needs to be adjusted only when the CEMode level of the UE is the CEModeB, in the information sending method, preferably, the message sent to the MME may carry the CEMode information of the UE only when the CEMode level of the UE is the CEModeB; when the UE is in a CEModeA class, the message sent to the MME may not carry the CEMode information of the UE, and if the message sent to the MME does not carry the CEMode information of the UE, the MME considers that the CEMode class of the UE is CEModeA.
Example one
As shown in fig. 2, the information sending method specifically includes:
s201, the base station and the UE complete RRC connection establishment and determine CEMode information of the UE;
s202, the base station sends initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE;
and S203, when the UE is in the connection state, the base station sends the latest CEMode information of the UE to an MME.
In step S203, the base station sends the latest CEMode information of the UE to the MME, which specifically includes the following steps:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE.
Corresponding to the base station side, at the MME side, an embodiment of the present application provides an information receiving method, as shown in fig. 3, the method includes:
s301, an MME receives information sent by an access network;
s302, the MME acquires the CEMode information of the UE from the information.
The MME acquires the CEMode information of the UE, and subsequently, the MME can set the timing duration of a timer for monitoring the NAS signaling interaction duration corresponding to the CEMode information according to the information, so that the failure of the NAS signaling process between the UE and the MME due to the fact that the timing duration of the timer is not consistent with the CEMode information of the UE is avoided, the success rate of the NAS signaling process between the UE and the MME is improved, and the user experience is improved.
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the receiving, by the MME, the information sent by the access network specifically includes:
after the UE and an evolved node B (eNB) complete the establishment of Radio Resource Control (RRC) connection, the MME receives initial UE information sent by the eNB, wherein the initial UE information carries CEMode information of the UE; specific contents of the initial UE information are shown in table 1;
the acquiring, by the MME, coverage enhancement mode CEMode information of the UE from the information specifically includes:
and receiving initial UE information sent by the eNB from the MME to acquire the CEMode information of the UE.
Preferably, after obtaining the coverage enhancement mode CEMode information of the user equipment UE from the information, the method further includes:
and determining the latest CEMode information of the UE.
When the UE is in a connected state, the CEMode information of the UE may change along with the movement of the UE, the MME receives the latest CEMode information of the UE, and subsequently, the MME can determine the timing duration of the timer for monitoring the NAS signaling interaction duration corresponding to the latest CEMode information according to the acquired latest CEMode information, so that the failure of an NAS signaling process caused by the inconsistency between the timing duration of the NAS signaling interaction timer and the current CEMode information of the UE due to the change of the CEMode information of the UE is avoided, the success rate of the NAS signaling process between the UE and the MME is improved when the UE is in the connected state, and the user experience is also improved.
Preferably, the determining the latest CEMode information of the UE specifically includes:
when the UE is in a connected state, when the UE sends a non-access stratum (NAS) message to an evolved node B (eNB), if the CEMode information of the UE is changed, the MME receives an uplink NAS transmission message sent by the eNB, the NAS transmission message carries the latest CEMode information of the UE, and the MME acquires the latest CEMode information of the UE from the NAS transmission message; specific contents of the NAS transport message are shown in table 2;
or, when the UE is in a connected state, the eNB acquires the latest cemmode information of the UE by triggering a UE capability query process, and if the latest cemmode information of the UE is different from the cemmode information of the UE carried in the initial UE information, the MME receives a capability information indication message sent by the eNB, where the capability information indication message of the UE carries the latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the capability information indication message of the UE; specific contents of the capability information indication message of the UE are shown in table 3;
or, when the UE is in a connected state and the UE is switched from a source eNB to a target eNB, the MME receives a path switching request message sent by the target eNB, where the path switching request message carries latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the path switching request message; the specific contents of the path switch request message are shown in table 4;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the MME receives a handover notification message sent by the source eNB, where the handover notification message carries latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the handover notification message; the specific content of the handover notification message is shown in table 5;
or, when the UE is in a connected state, and the UE moves between two cells under one base station or moves from a cell center to a cell edge, if the eNB detects that the cemmode information of the UE changes, the MME receives a context change indication message of the UE sent by the eNB, where the context change indication message of the UE carries the latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the context change indication message of the UE. The specific contents of the context change indication message of the UE are shown in table 6.
Preferably, after the MME acquires the CEMode information of the UE from the information, the method further includes:
and the MME determines the timing duration of an NAS timer according to the CEMode information, wherein the timing duration is used for monitoring the NAS signaling interaction duration between the UE and the MME.
Example two
As shown in fig. 4, the specific steps of the information receiving method include:
s401, after the UE completes the establishment of radio resource control RRC connection with an evolved node B eNB, the MME receives initial UE information sent by the eNB, wherein the initial UE information carries CEMode information of the UE;
s402, MME receives initial UE information sent by eNB from MME, and obtains CEMode information of the UE;
s403, the MME determines the timing duration of the NAS timer according to the CEMode information;
and S404, determining the latest CEMode information of the UE.
S405, the MME determines the timing duration of the NAS timer according to the latest CEMode information of the UE;
in correspondence with the above method, on the base station side, an embodiment of the present application further provides an information transmitting apparatus, as shown in fig. 5, the information transmitting apparatus includes:
a determining unit 1, configured to determine coverage enhancement mode CEMode information of a user equipment UE;
a sending unit 2, configured to send the cemmode information of the UE to a mobility management entity MME.
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the sending unit 2 is specifically configured to:
and after the RRC connection with the UE is established, sending initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE.
Preferably, the sending unit 2 is further configured to:
and after the CEMode information of the UE is sent to the MME, sending the latest CEMode information of the UE to the MME.
Preferably, the sending unit 2 sends the latest CEMode information of the UE to the MME, which specifically includes:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE.
In correspondence to the above method, on the MME side, an embodiment of the present application further provides an information receiving apparatus, as shown in fig. 6, the information receiving apparatus includes:
a receiving unit 3, configured to receive information sent by an access network;
an obtaining unit 4, configured to obtain coverage enhancement mode CEMode information of the user equipment UE from the information.
Preferably, the CEMode information of the UE includes a CEMode indicator, and the CEMode indicator is used for indicating the CEMode level of the UE to the MME.
Preferably, the receiving unit 3 is specifically configured to: after the UE and an evolved node B (eNB) complete the establishment of Radio Resource Control (RRC) connection, receiving initial UE information sent by the eNB, wherein the initial UE information carries the latest CEMode information; the obtaining unit 4 is specifically configured to: and acquiring the latest CEMode information of the UE from the initial UE information received by the receiving unit and sent by the eNB.
Preferably, the obtaining unit 4 is further configured to:
and determining the latest CEMode information of the UE.
Preferably, the determining, by the obtaining unit 4, the latest CEMode information of the UE specifically includes:
when the UE is in a connected state, when the UE sends a non-access stratum (NAS) message to an evolved node B (eNB), if the CEMode information of the UE is changed, receiving an uplink NAS transmission message sent by the eNB, wherein the NAS transmission message carries the latest CEMode information of the UE, and acquiring the latest CEMode information of the UE from the NAS transmission message;
or, when the UE is in a connected state, the eNB acquires the latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, receives a capability information indication message sent by the eNB, where the latest CEMode information of the UE is carried in the capability information indication message of the UE, and acquires the latest CEMode information of the UE from the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source eNB to a target eNB, receiving a path switching request message sent by the target eNB, where the path switching request message carries latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the path switching request message;
or, when the UE is in a connected state and needs to be switched from a source eNB to a target eNB through the MME, receiving a handover notification message sent by the source eNB, where the handover notification message carries latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the handover notification message;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if the eNB detects that the cemmode information of the UE changes, receiving a context change indication message of the UE sent by the eNB, where the context change indication message of the UE carries the latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the context change indication message of the UE.
Preferably, the obtaining unit 4 is further configured to:
and determining the timing duration of an NAS timer according to the CEMode information, wherein the timing duration is used for monitoring the NAS signaling interaction duration between the UE and the MME.
To sum up, in the technical solution provided in the embodiment of the present application, the cemmode information of the UE is sent to the MME by determining the cemmode information of the UE; in the process that the UE is accessed to the eNB, the MME can obtain the CEMode information of the UE, and when the CEMode information of the UE changes along with the movement of the UE in a connection state, the MME can still obtain the latest CEMode information of the UE, so that the MME can obtain the CEMode information of the UE in the current state no matter in the process that the UE is accessed to the eNB or when the UE is in a connection state, the MME can determine the timing duration of a timer for monitoring the NAS signaling interaction duration according to the CEMode information of the UE, the failure of the signaling process between the UE and the MME due to the fact that the timing duration of the timer for the NAS signaling interaction duration is not consistent with the CEMode information of the UE is avoided, the success rate of the NAS signaling interaction between the UE and the MME is improved, and the user experience is also improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (14)
1. An information sending method, characterized in that the method comprises:
determining coverage enhancement mode CEMode information of User Equipment (UE);
sending the CEMode information of the UE to a Mobility Management Entity (MME);
after sending the CEMode information of the UE to the MME, the method further includes:
sending the latest CEMode information of the UE to an MME;
sending the latest CEMode information of the UE to an MME, which specifically comprises the following steps:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE.
2. The method of claim 1, wherein the CEMode information of the UE comprises a CEMode indicator, and wherein the CEMode indicator is used to indicate a CEMode class of the UE to the MME.
3. The method of claim 1, wherein the sending the CEMode information of the UE to an MME specifically comprises:
and after the RRC connection with the UE is established, sending initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE.
4. An information receiving method, characterized in that the method comprises:
a mobility management entity MME receives information sent by an access network;
the MME acquires coverage enhancement mode CEMode information of User Equipment (UE) from the information;
after acquiring coverage enhancement mode (CEMode) information of the User Equipment (UE) from the information, the method further comprises the following steps:
determining the latest CEMode information of the UE;
determining the latest CEMode information of the UE, which specifically includes:
when the UE is in a connected state, when the UE sends a non-access stratum (NAS) message to an evolved node B (eNB), if the CEMode information of the UE is changed, the MME receives an uplink NAS transmission message sent by the eNB, the NAS transmission message carries the latest CEMode information of the UE, and the MME acquires the latest CEMode information of the UE from the NAS transmission message;
or, when the UE is in a connected state, the eNB acquires the latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, the MME receives a capability information indication message sent by the eNB, where the latest CEMode information of the UE is carried in the capability information indication message of the UE, and the MME acquires the latest CEMode information of the UE from the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source eNB to a target eNB, the MME receives a path switching request message sent by the target eNB, where the path switching request message carries latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the path switching request message;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the MME receives a handover notification message sent by the source eNB, where the handover notification message carries latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the handover notification message;
or, when the UE is in a connected state, and the UE moves between two cells under one base station or moves from a cell center to a cell edge, if the eNB detects that the cemmode information of the UE changes, the MME receives a context change indication message of the UE sent by the eNB, where the context change indication message of the UE carries the latest cemmode information of the UE, and the MME acquires the latest cemmode information of the UE from the context change indication message of the UE.
5. The method of claim 4, wherein the CEMode information of the UE comprises a CEMode indicator, and wherein the CEMode indicator is used to indicate a CEMode class of the UE to the MME.
6. The method according to claim 5, wherein the MME receiving information sent by an access network specifically includes:
after the UE and an evolved node B (eNB) complete the establishment of Radio Resource Control (RRC) connection, the MME receives initial UE information sent by the eNB, wherein the initial UE information carries CEMode information of the UE;
the acquiring, by the MME, coverage enhancement mode CEMode information of the UE from the information specifically includes:
and receiving initial UE information sent by the eNB from the MME to acquire the CEMode information of the UE.
7. The method of claim 4, wherein after the MME obtains the CEMode information of the UE from the information, the method further comprises:
and the MME determines the timing duration of an NAS timer according to the CEMode information, wherein the timing duration is used for monitoring the NAS signaling interaction duration between the UE and the MME.
8. An information transmission apparatus, characterized by comprising:
a determining unit, configured to determine coverage enhancement mode (CEMode) information of a User Equipment (UE);
a sending unit, configured to send the CEMode information of the UE to a mobility management entity MME;
the sending unit is further configured to:
after the CEMode information of the UE is sent to an MME, the latest CEMode information of the UE is sent to the MME;
the sending unit sends the latest CEMode information of the UE to an MME, and specifically includes:
when the UE is in a connected state, after receiving a non-access stratum (NAS) message sent by the UE, if the CEMode information of the UE is changed, sending an uplink NAS transmission message to the MME, wherein the NAS transmission message carries the latest CEMode information of the UE;
or, when the UE is in a connected state, acquiring latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, sending a capability information indication message of the UE to the MME, where the latest CEMode information of the UE is carried in the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source evolved node b (eNB) to a target eNB, the target eNB sends a path switching request message to the MME, where the path switching request message carries latest CEMode information of the UE;
or, when the UE needs to be switched from a source eNB to a target eNB through the MME in a connected state, the source eNB sends a switching notification message to the MME, where the switching notification message carries the latest cemmode information of the UE;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if it is detected that the cemmode information of the UE changes, sending a context change indication message of the UE to the MME, where the context change indication message of the UE carries the latest cemmode information of the UE.
9. The apparatus of claim 8, wherein the CEMode information of the UE comprises a CEMode indicator used to indicate a CEMode class of the UE to the MME.
10. The apparatus according to claim 8, wherein the sending unit is specifically configured to:
and after the RRC connection with the UE is established, sending initial UE information to the MME, wherein the initial UE information carries CEMode information of the UE.
11. An information receiving apparatus, characterized in that the apparatus comprises:
a receiving unit, configured to receive information sent by an access network;
an obtaining unit, configured to obtain coverage enhancement mode (CEMode) information of a User Equipment (UE) from the information;
the acquisition unit is further configured to:
determining the latest CEMode information of the UE;
the determining, by the obtaining unit, the latest CEMode information of the UE specifically includes:
when the UE is in a connected state, when the UE sends a non-access stratum (NAS) message to an evolved node B (eNB), if the CEMode information of the UE is changed, receiving an uplink NAS transmission message sent by the eNB, wherein the NAS transmission message carries the latest CEMode information of the UE, and acquiring the latest CEMode information of the UE from the NAS transmission message;
or, when the UE is in a connected state, the eNB acquires the latest CEMode information of the UE by triggering a UE capability query process, and if the latest CEMode information of the UE is different from the CEMode information of the UE carried in the initial UE information, receives a capability information indication message sent by the eNB, where the latest CEMode information of the UE is carried in the capability information indication message of the UE, and acquires the latest CEMode information of the UE from the capability information indication message of the UE;
or, when the UE is in a connected state and the UE is switched from a source eNB to a target eNB, receiving a path switching request message sent by the target eNB, where the path switching request message carries latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the path switching request message;
or, when the UE is in a connected state and needs to be switched from a source eNB to a target eNB through an MME, receiving a handover notification message sent by the source eNB, where the handover notification message carries latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the handover notification message;
or, when the UE is in a connected state and moves between two cells under a base station or moves from a cell center to a cell edge, if the eNB detects that the cemmode information of the UE changes, receiving a context change indication message of the UE sent by the eNB, where the context change indication message of the UE carries the latest cemmode information of the UE, and acquiring the latest cemmode information of the UE from the context change indication message of the UE.
12. The apparatus of claim 11, wherein the CEMode information of the UE comprises a CEMode indicator used to indicate a CEMode class of the UE to the MME.
13. The apparatus of claim 11,
the receiving unit is specifically configured to: after the UE and an evolved node B (eNB) complete the establishment of Radio Resource Control (RRC) connection, receiving initial UE information sent by the eNB, wherein the initial UE information carries the latest CEMode information;
the obtaining unit is specifically configured to: and acquiring the latest CEMode information of the UE from the initial UE information received by the receiving unit and sent by the eNB.
14. The apparatus of claim 11, wherein the obtaining unit is further configured to:
and determining the timing duration of an NAS timer according to the CEMode information, wherein the timing duration is used for monitoring the NAS signaling interaction duration between the UE and the MME.
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