CN115734337A

CN115734337A - Communication method, communication device, communication apparatus, and storage medium

Info

Publication number: CN115734337A
Application number: CN202111019737.4A
Authority: CN
Inventors: 陈龙
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2023-03-03

Abstract

The embodiment of the disclosure discloses a communication method, a communication device and a storage medium; the communication method is executed by User Equipment (UE) and comprises the following steps: responding to the disconnection of a multimedia subsystem protocol data unit (IMS PDU) link when the UE is registered in an independent networking SA network, and determining the reconstruction time for reconstructing the IMS PDU link; prohibiting the UE from registering with the SA network during the reestablishment time. The embodiment of the disclosure can reduce the occurrence of the situation of voice service disconnection and improve the user experience.

Description

Communication method, communication device, communication apparatus, and storage medium

Technical Field

The present disclosure relates to but not limited to the field of communication technologies, and in particular, to a communication method, apparatus, communication device, and storage medium.

Background

In the related art, there are two networking methods for the fifth generation communication technology (5G) network, one is Non-independent Networking (NSA), and the other is independent networking (SA). Wherein the voice service of the SA network mainly relies on a Multimedia Subsystem (IMS); when a User Equipment (UE) is registered in an SA network, if an IMS Protocol Data Unit (PDU) link is disconnected, the UE cannot monitor voice services such as a voice incoming call, which brings great inconvenience to the User.

Disclosure of Invention

The disclosure provides a communication method, a communication device, a terminal and a storage medium.

According to a first aspect of the present disclosure, there is provided a communication method, performed by a User Equipment (UE), comprising:

determining reestablishment time for reestablishing an IMS PDU link in response to the IMS PDU link being disconnected when the UE is registered in an SA network;

prohibiting the UE from registering with the SA network during the reestablishment time.

In some embodiments, said prohibiting the UE from registering with the SA network for the reestablishment time comprises:

and if the reestablishment time is greater than or equal to the preset time, prohibiting the UE from registering in the SA network in the reestablishment time.

In some embodiments, the method further comprises:

if the reestablishment time is less than the preset time, the UE is kept to be registered in the SA network in the reestablishment time, and the IMS PDU link is reestablished when the reestablishment time is up.

In some embodiments, the method further comprises:

and reestablishing the IMS PDU link and registering the SA network when the reestablishment time is reached.

In some embodiments, the determining a reestablishment time to reestablish an IMS PDU link includes:

receiving reconstruction information sent by network equipment; wherein the reconstruction information includes: the reconstruction time;

and determining the reestablishment time for reestablishing the IMS PDU link according to the reestablishment time included in the reestablishment information.

receiving reconstruction information sent by network equipment; wherein the reconstruction information includes: event information indicating a link disconnection of the IMS PDU;

determining the reconstruction time based on the event information.

In some embodiments, the receiving network device sends the reestablishment information including one of:

receiving a registration receiving message of the network equipment carrying the reconstruction information;

and receiving the attachment receiving message of the network equipment carrying the reconstruction information.

In some embodiments, the determining a reestablishment time to reestablish an IMS PDU link includes one of:

acquiring the preset reestablishment time for reestablishing the IMS PDU link;

determining the reestablishment time of the reestablishment of the IMS PDU link based on historical information; wherein the historical information includes the reestablishment time for reestablishing the IMS PDU link historically.

According to a second aspect of the present disclosure, there is provided a communication method, performed by a network device, comprising:

responding to the disconnection of an IMS PDU link when UE is registered in an SA network, and sending reconstruction information to the UE; wherein the reestablishment information is used for the UE to determine reestablishment time for reestablishing an IMS PDU link;

wherein the reestablishment time is used for the UE to prohibit the UE from registering in the SA network within the reestablishment time.

In some embodiments, the reconstruction information comprises:

the reconstruction time;

event information indicating a link down of the IMS PDU.

In some embodiments, the sending re-establishment information to the UE comprises one of:

sending a registration receiving message carrying the reconstruction information to the UE;

and sending an attach receiving message carrying the reestablishment information to the UE.

In some embodiments, the method further comprises:

determining the reestablishment time based on a resource allocation status of the network device.

According to a third aspect of the present disclosure, there is provided a communication apparatus, applied to a UE, including:

a first determining module, configured to determine a reestablishment time for reestablishing an IMS PDU link in response to an IMS PDU link being disconnected when the UE is registered in an SA network;

a processing module, configured to prohibit the UE from registering in the SA network during the reestablishment time.

In some embodiments, the processing module is configured to prohibit the UE from registering in the SA network for the reestablishment time if the reestablishment time is greater than or equal to a predetermined time.

In some embodiments, the processing module is configured to maintain the UE registered in the SA network during the reestablishment time if the reestablishment time is less than the predetermined time, and reestablish the IMS PDU link when the reestablishment time is reached.

In some embodiments, the processing module is configured to reestablish the IMS PDU link and register with the SA network when the reestablishment time is reached.

In some embodiments, the apparatus comprises: the receiving module is used for receiving reconstruction information sent by the network equipment; wherein the reconstruction information includes: the reconstruction time;

the first determining module is configured to determine the reestablishment time for reestablishing the IMS PDU link according to the reestablishment time included in the reestablishment information.

In some embodiments, the apparatus, comprises: the receiving module is used for receiving reconstruction information sent by the network equipment; wherein the reconstruction information includes: event information indicating a link disconnection of the IMS PDU;

the first determining module is further configured to determine the reconstruction time based on the event information.

In some embodiments, the first determining module is configured to receive a registration receiving message that the network device carries the reestablishment information; alternatively, the first and second liquid crystal display panels may be,

the first determining module is configured to receive an attach receive message that the network device carries the reestablishment information.

In some embodiments, the first determining module is configured to obtain the preset reestablishment time for reestablishing the IMS PDU link; alternatively, the first and second liquid crystal display panels may be,

the first determining module is configured to determine the reestablishment time for reestablishing the IMS PDU link based on history information; wherein the historical information includes the reestablishment time for reestablishing the IMS PDU link historically.

According to a fourth aspect of the present disclosure, there is provided a communication apparatus applied to a network device, including:

a sending module, configured to send reestablishment information to the UE in response to a disconnection of an IMS PDU link when the UE is registered in an SA network; wherein the reestablishment information is used for the UE to determine reestablishment time for reestablishing an IMS PDU link;

In some embodiments, the reconstruction information comprises:

the reconstruction time;

event information indicating a link disconnection of the IMS PDU.

In some embodiments, the sending module is configured to send a registration receive message carrying the reestablishment information to the UE; alternatively, the first and second electrodes may be,

the sending module is configured to send an attach receive message carrying the reestablishment information to the UE.

In some embodiments, the apparatus further comprises:

a second determining module, configured to determine the reestablishment time based on a resource allocation status of the network device.

According to a fifth aspect of the present disclosure, there is provided a communication apparatus comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: when the executable instructions are executed, the communication method according to any embodiment of the disclosure is realized.

According to a sixth aspect of the present disclosure, there is provided a computer readable storage medium storing an executable program, wherein the executable program, when executed by a processor, implements the communication method according to any embodiment of the present disclosure.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

in the embodiment of the disclosure, the reestablishment time for reestablishing the IMS PDU link can be determined by the UE responding to the disconnection of the IMS PDU link when the UE is registered in the SA network; and prohibiting the UE from registering in the SA network within the reestablishment time. As such, the UE of the present disclosure may not register the UE on the SA network within the reestablishment time, for example, the UE may be caused to camp back on a Long Term Evolution (LTE) network from the SA network; therefore, after the UE can fall back to the LTE network from the SA network, the UE can fall back to the 2G or 3G network based on the LTE network to perform voice service, the situation of disconnection of the voice service is reduced, and the user experience is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a flow chart illustrating a method of communication according to an example embodiment.

Fig. 2 is a flow chart illustrating a method of communication according to an example embodiment.

Fig. 3 is a flow chart illustrating a method of communication according to an example embodiment.

Fig. 4 is a flow chart illustrating a method of communication according to an example embodiment.

Fig. 5 is a block diagram illustrating a communication device according to an example embodiment.

Fig. 6 is a block diagram illustrating a communication device according to an example embodiment.

Fig. 7 is a block diagram illustrating a communication device in accordance with an example embodiment.

Fig. 8 is a block diagram illustrating a terminal according to an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

FIG. 1 is a schematic diagram illustrating a communication method in accordance with an exemplary embodiment; as shown in fig. 1, the communication method includes the steps of:

step S11: determining reestablishment time for reestablishing an IMS PDU link in response to disconnection of the IMS PDU link when the UE is registered in an SA network;

step S12: prohibiting the UE from registering with the SA network during the reestablishment time.

The method of the embodiment of the disclosure is executed by UE; the UE herein may be various mobile terminals or fixed terminals. For example, the UE may be, but is not limited to, a cell phone, a computer, a server, a wearable device, a game control platform, a multimedia device, or the like.

In one embodiment, the IMS PDU link disconnection of the UE means: and the IMS PDU link between the UE and the network equipment at the network side is disconnected. Here, the network device includes a device that may be an access network device or a core network device. Here, the access network device may be, but is not limited to, a base station; for example, the access network device may be a 3G base station, a 4G base station, a 5G base station, or other evolved base station. Here, the core network device may be, but is not limited to, various physical entities or logical entities of the core network; for example, the core network device may be a mobility management entity or a serving gateway.

In one embodiment, the reconstruction time is a time greater than or equal to a first duration. Illustratively, the first time period is 10 seconds, 20 seconds, 60 seconds, 2 minutes, 5 minutes, 10 minutes, or the like.

In another embodiment, the reconstruction time may also be a time greater than or equal to the second duration. Illustratively, the second duration may be a time to eliminate an IMS PDU link down event.

In one embodiment, an implementation manner of prohibiting the UE from registering in the SA network is: storing a specific list in the UE, wherein each event recorded in the specific list is an event executed by the UE; if the event of the SA network is recorded in the specific list, the UE may register on the SA network; if the event of the SA network in the specific list is removed, the UE cannot register with the SA network.

In another embodiment, one way to prohibit the UE from registering in the SA network is to: the UE adds an event of an SA network to a forbidden registration list of the UE; each event recorded by the forbidden list is an event forbidden to be executed by the UE; if the event of the SA network is recorded in a registration prohibition list, prohibiting UE from registering on the SA network; and if the event of the SA network is removed from the forbidden registration list, the UE is allowed to register in the SA network.

It can be understood that: if the UE is registered in the SA network, the UE cannot return to a 2G or 3G network to monitor voice services; and if the IMS PDU link is disconnected, the UE cannot monitor voice services such as voice incoming calls and the like. If the UE prohibits the UE from registering in the SA network, the UE can be automatically returned to the LTE network from the SA network. And the UE can fall back to the 2G or 3G network from the LTE network to monitor the voice service, so that the UE can monitor the voice service when the UE is not registered in the SA network.

As such, the UE of the present disclosure may not register the UE on the SA network within the reestablishment time, for example, the UE may be caused to camp back on a Long Term Evolution (LTE) network from the SA network; therefore, after the UE can fall back to the LTE network from the SA, the voice service can be carried out based on the 2G or 3G network falling back from the LTE network, the situation that the voice service is disconnected is reduced, and the user experience is improved.

Moreover, in the embodiment of the present disclosure, the UE does not need to reestablish the IMS PDU link within the reestablishment time, so that the resource waste of the UE can be saved. If the IMS PDU link is reestablished within the reestablishment time, if the cause of the IMS PDU link disconnection is not found yet, the network side may return a registration failure message.

In some embodiments, the method further comprises: reestablishing the IMS PDU link when the reestablishment time is reached. Illustratively, the UE sends an IMS PDU Session registration Request (Session Establishment Request) message to the network device on the network side within the reestablishment time. Therefore, the IMS PDU link can be reestablished after the reestablishment time, and the method and the device are beneficial for the UE to monitor voice services such as voice incoming calls and the like based on the IMS PDU link in the SA network.

In one embodiment, the UE re-establishes the IMS PDU link, which may also be replaced by the UE re-registering the IMS PDU session.

In one embodiment, if the UE is camped on the LTE network, the reestablishing the IMS PDU link may be considered as reestablishing the multimedia subsystem common data network (IMS PDN) link. Here, the UE is not registered in the SA network, and may be considered to be camped on the LTE network.

In some embodiments, the method further comprises: determining whether the reconstruction time is greater than a predetermined time; if the reestablishment time is greater than or equal to the preset time, prohibiting the UE from registering in the SA network in the reestablishment time; and if the reestablishment time is less than the preset time, maintaining the UE to be registered in the SA network in the reestablishment time. Here, the maintaining the UE registered in the SA network, that is: the UE is not prohibited from registering with the SA network.

As shown in fig. 2, in some embodiments, the step S12 includes:

step S121: and if the reestablishment time is greater than or equal to the preset time, prohibiting the UE from registering in the SA network in the reestablishment time.

Referring again to fig. 2, in some embodiments, the method further comprises:

step S13: and reestablishing the IMS PDU link and registering the SA network when the reestablishment time is reached.

In one embodiment, the predetermined time may be pre-configured or obtained based on historical information. For example, if a UE usually receives a voice call at least 2 minutes apart, the predetermined time may be set to be less than or equal to 2 minutes in advance. For example, if it is determined that a voice incoming call is received 1 minute after the IMS PDU link is opened last time according to the history information, it may be determined that the predetermined time is a time less than or equal to 1 minute.

In one embodiment, in step S13, the IMS PDU link may be reestablished first, and then the SA network registration is initiated.

In the embodiment of the present disclosure, when the reestablishment time of the UE is greater than or equal to the predetermined time, it is determined that the probability that the UE monitors the voice services such as the incoming call at the reestablishment time is relatively high; in this way, the UE can prohibit the UE from registering in the SA network within the reconstruction time, so that the UE can return to a 2G or 3G network and the like in the LTE network to monitor the voice service, thereby improving the probability of monitoring the voice service within the reconstruction time; and when the reestablishment time is up, SA network registration and IMS PDU link reestablishment can be initiated, so that the UE can return to the SA network in time to perform voice service based on the IMS PDU link. Therefore, the embodiment of the disclosure can reduce the occurrence of the situation that the voice service of the UE is disconnected, and improve the experience of the user in the SA network and the like.

In some embodiments, the method further comprises: if the reestablishment time is less than the preset time, the UE is kept to be registered in the SA network in the reestablishment time, and the IMS PDU link is reestablished when the reestablishment time is up.

Here, the UE maintains the registration of the UE with the SA network during the reestablishment time, which may be considered as the registration of the UE with the SA network.

In the embodiment of the present disclosure, if the reestablishment time is less than the predetermined time, it is determined that the probability that the UE monitors the voice service such as the voice incoming call at the reestablishment time is very small; the UE can be maintained registered in the SA network for the reestablishment time, which will not make the UE monitor the voice service effectively. And the UE can also rebuild the IMS PDU link when the rebuilding time is reached, so that the UE can register on the SA network to carry out voice service based on the IMS PDU link after the rebuilding time is reached.

In the embodiment of the disclosure, the UE does not need to be prohibited from registering in the SA network during the reestablishment time and the SA network needs to be re-registered when the reestablishment time is reached; therefore, the probability of different switching of the UE between different networks can be reduced, and the stability of the UE connected to the networks can be improved.

determining the reestablishment time for reestablishing the IMS PDU link based on the reestablishment time included in the reestablishment information.

Illustratively, the UE receives reestablishment information sent by a network device, where the reestablishment information includes a reestablishment time indicating that the UE reestablishes an IMS PDU link. Thus, the UE may determine the time for re-establishing the IMS PDU by the UE based on the re-establishing time in the re-establishing information, where the re-establishing time in the re-establishing information is the time for re-establishing the IMS PDU by the UE.

receiving reconstruction information sent by network equipment; wherein the reconstruction information comprises: event information indicating a link disconnection of the IMS PDU;

determining the reconstruction time based on the event information.

In one embodiment, the event information may be an event indicating any one of the events that caused the IMS PDU link to be broken. Illustratively, the event information includes, but is not limited to, at least one of: the current residual network resource is less than the preset resource, the UE is illegal, and the identity authentication of the UE is overdue. Illustratively, the event information includes, but is not limited to, at least one of: mobile Stations (MSs) that are not legitimate, mobile Equipment (ME) that are not legitimate, general Packet Radio Service (GPRS) services, non-GPRS services that are not allowed, and current network resources are scarce.

Here, the event information may also refer to a reason for the session disconnection of the IMS PDU.

In one embodiment, the UE may pre-store a correspondence between the event information and the reconstruction time; the reconstruction time may be different for different event information. The UE may thus determine a re-establishment time for re-establishing the IMS PDU based on receiving event information from the network device.

Illustratively, the UE receives reestablishment information sent by the network device, wherein the reestablishment information includes event information indicating that the IMS PDU link is disconnected. Thus, the UE can determine the accurate reconstruction time according to the time event.

Illustratively, the UE receives reestablishment information sent by the network device, where the reestablishment information includes: event information indicating that the IMS PDU link is disconnected and a reconstruction time corresponding to the event information. The UE may thus determine the reconstruction time based on the obtained reconstruction information.

In the embodiment of the present disclosure, the UE may determine an accurate time for reestablishing the IMS PDU link based on an indication of the network device.

receiving a registration receipt (registration accept) message carrying the reconstruction information by the network equipment;

and receiving an attach accept (attach accept) message carrying the reconstruction information by the network equipment.

Here, the registration reception message is used to inform the UE to: and confirming to receive the registration request sent by the UE. The attach accept message is used to inform the UE to: and confirming to receive the attachment request sent by the UE.

Exemplarily, the UE receives a registration receipt message, where a predetermined field of the registration receipt message carries the reestablishment information. Here, the predetermined field may be a field existing at the time of registering the received message or a new field added. Here, the event information and the time information may be carried in the same predetermined field, or the time information and the time information may be carried in different predetermined fields, respectively.

Exemplarily, the UE receives an attach receive message, where a predetermined field of the attach receive message carries the reestablishment information. Here, the predetermined field may be an existing field of the attach receive message or an added new field. Here, the event information and the time information may be carried in the same predetermined field, or the time information and the time information may be carried in different predetermined fields, respectively.

Illustratively, the predetermined field may be a protocol data unit Session identification (PDU Session ID, PSI). For example, the PSI of the registration received message carries indication information corresponding to the reconstruction time and/or the event information. For example, if the PSI carries indication information "0101", then "01" may indicate event information that the current network resources are insufficient, and "01" indicates that the reconstruction time is 1 minute. As another example, if the PSI carries indication information "0001", then "00" indicates that no event information is carried, and "01" indicates that the reconstruction time is 1 minute.

In the embodiment of the present disclosure, the UE may obtain the reestablishment information by receiving the registration received message carrying the reestablishment information or the attach received message carrying the reestablishment information, so that it can know the situation that the network device receives the registration request or the attach request, and know the reason of the IMS PDU link disconnection and/or reestablish the reestablishment time of the IMS PDU link disconnection through one message (the registration received message or the attach received message); therefore, the signaling overhead of the UE and the network equipment can be greatly saved, and the transmission resource between the UE and the network equipment is saved.

Of course, in other embodiments, the reconstruction information may also be sent in any other realizable signaling or message carrier, for example, may be carried in a broadcast message; no limitation is made to the specific signaling or message carrying the reconstruction information.

In some embodiments, the determining a re-establishment time to re-establish the IMS PDU link comprises one of:

acquiring the preset reestablishing time for reestablishing the IMS PDU link;

Illustratively, the UE pre-reestablishes the reestablishment time of the IMS PDU link based on empirical values. For example, a time of 10 seconds or more is set as the reconstruction time.

Exemplarily, the UE determines the time for re-establishing the IMS PDU link this time according to the time for re-establishing the IMS PDU link last determined in the history information. For example, if the UE determines that the reestablishment time of the session for reestablishing the IMS PDU last time is 20 seconds according to the history information, it determines that the reestablishment time for reestablishing the IMS PDU link this time is 10 seconds.

Illustratively, the UE determines the time for re-establishing the IMS PDU link this time according to the time for re-establishing the IMS PDU link in the history information or for a predetermined number of times.

Exemplarily, the determining, by the UE, the time for reestablishing the IMS PDU link at this time according to the reestablishment time for reestablishing the IMS PDU link for the predetermined number of times in the history information includes: and determining the reconstruction time of the IMS PDU link according to the average value of the reconstruction time of the IMS PDU link for the preset times in the historical information. For example, if the UE determines that the reconstruction time for reconstructing the IMS PDU of 5 times is 10 seconds, 20 seconds, 30 seconds, 20 seconds, and 10 seconds, respectively, according to the history information, the UE determines that the reconstruction time for reconstructing the IMS PDU this time is 18 seconds based on the average value of the reconstruction time of 5 times; for example, the reestablishment time for reestablishing the IMS PDU this time is determined to be 18 seconds.

Exemplarily, the determining, by the UE, the time for reconstructing the IMS PDU link according to the time for reconstructing the IMS PDU link for the predetermined number of times in the history information includes: and determining the reconstruction time of the IMS PDU link according to the maximum value or the minimum value of the reconstruction time of the IMS PDU link in the historical information for the preset times. For example, if the UE determines that the reconstruction time for reconstructing the IMS PDU of 5 times is 10 seconds, 20 seconds, 30 seconds, 20 seconds, and 10 seconds, respectively, according to the history information, the UE determines that the reconstruction time for reconstructing the IMS PDU this time is based on the maximum value of the reconstruction time of 5 times, which is 30 seconds; for example, the reestablishment time for reestablishing the IMS PDU this time is determined to be 30 seconds.

Illustratively, the UE determines the time for reestablishing the IMS PDU link this time according to the time for reestablishing the IMS PDU link within a predetermined time period in the history information. For example, the determining, by the UE, the time for reestablishing the IMS PDU link this time according to the reestablishment time for reestablishing the IMS PDU link within the predetermined time period in the history information includes: and the UE determines the reconstruction time of the IMS PDU link according to the average value, the maximum value, the minimum value or the latest reconstruction time of the IMS PDU link within the preset time in the historical information.

Thus, in the embodiment of the present disclosure, the reestablishment information for reestablishing the IMS PDU link may be determined based on an empirical value pre-configured by the UE, or the reestablishment time may be determined based on historical information stored in the UE, or the like; so that a relatively suitable reconstruction time can also be obtained.

if the reestablishment time sent by the network equipment is received, determining the reestablishment time as the reestablishment time for reestablishing an IMS PDU link;

if the event information sent by the network equipment is received, determining the reestablishment time for reestablishing an IMS PDU link based on the event information;

if the reestablishment time or the event information sent by the network equipment is not received, determining the reestablishment time which is configured in advance to determine to reestablish the IMS PDU link, or determining the reestablishment time to reestablish the IMS PDU link based on the historical information.

Thus, in the embodiment of the present disclosure, the reestablishment time for reestablishing the IMS PDU may be preferentially determined based on the reestablishment time and/or the event information configured by the network device, and if the reestablishment time and/or the event information is not configured by the network device, the reestablishment time for reestablishing the IMS PDU may also be determined based on the reestablishment time or the history information configured in advance by the UE. Therefore, the method can be applied to the determination of the reconstruction time in more application scenes.

A communication method, which is performed by a network device, is similar to the description of the communication method performed by the UE described above; for technical details not disclosed in the embodiment of the communication method performed by the network device, please refer to the description of the example of the communication method performed by the UE, which is not described in detail herein.

As shown in fig. 3, an embodiment of the present disclosure provides a communication method applied to a network device, including the following steps:

step S21: responding to the disconnection of an IMS PDU link when UE is registered in an SA network, and sending reconstruction information to the UE;

wherein the reestablishment information is used for the UE to determine reestablishment time for reestablishing an IMS PDU link;

wherein the reestablishment time is used for the UE to prohibit the UE from registering in the SA network in the reestablishment time.

In some embodiments, the reconstruction information comprises:

the reconstruction time;

event information indicating a link down of the IMS PDU.

In some embodiments, the sending the re-establishment information to the UE comprises one of:

sending a registration receiving request message carrying the reconstruction information to the UE;

and sending an attach receive accept message carrying the reconstruction information to the UE.

In some embodiments, the method further comprises: determining the reestablishment time based on a resource allocation status of the network device.

In one embodiment, the determining the reestablishment time based on the resource allocation status of the network device includes: and if the residual network resources of the network equipment are determined to be greater than or equal to the preset network resources after the third time length, determining the third time length as the reconstruction time. Illustratively, if the current remaining network resource is 10%, the remaining network resource after the third duration is 60%, and the remaining network resource is greater than or equal to the predetermined network resource by 50%; the third duration may be determined to be the reconstruction time.

In another embodiment, the determining the reestablishment time based on the resource allocation status of the network device includes: if the remaining network resources of the network equipment are detected to be less than the preset network resources, continuing to detect whether the remaining network resources of the network equipment are greater than or equal to the preset network resources after a preset time interval; and determining the reestablishment time based on the time when the remaining network resources of the network equipment are detected to be greater than or equal to the predetermined network resources until the remaining network resources of the network equipment are detected to be greater than or equal to the predetermined network resources. Here, if the base station reaches the set timing duration, and if the detected remaining network resources of the network device are still less than the predetermined network resources, the detection of the remaining network resources of the network device is ended. Here, the timing period is longer than the sum of the third period and the preset period.

In one embodiment, the determining the reestablishment time based on the resource allocation status of the network device includes: and if the proportion of the UE performing IMS PDU conversation with the network equipment is reduced to a preset proportion after the fourth time, determining the fourth time as the reconstruction time. Illustratively, if there are N UEs currently performing IMS PDU sessions with the network device, the ratio is 100%; after the fourth duration, the UE performing IMS PDU session with the network device is reduced by 30%, which is: 70% xn, and 70% xn is less than a predetermined ratio; the fourth time period may be determined to be the reconstruction time period.

In another embodiment, the determining the reestablishment time based on the resource allocation status of the network device includes: if the proportion of the UE performing IMS PDU conversation with the network equipment is larger than the preset proportion, continuously determining whether the proportion of the UE performing IMS PDU conversation with the network equipment is smaller than the preset proportion or not after a preset time interval; until it is determined that the proportion of UEs in IMS PDU sessions with the network device is less than the predetermined proportion, a reestablishment time is determined based on a time for which it is determined that the proportion of UEs in IMS PDU sessions with the network device is less than the predetermined proportion. Here, if the base station reaches the set timing duration, and if it is determined that the proportion of the UE performing the IMS PDU session with the network device is still greater than the predetermined proportion, the re-establishment time is no longer determined based on the proportion of the UE performing the IMS PDU session with the network device. Here, the timing length is greater than the sum of the fourth length and the timing length.

In this way, in the embodiment of the present disclosure, a suitable reestablishment time may be accurately determined according to the resource allocation state of the network device, so as to facilitate the UE to determine, based on the reestablishment time, whether to prohibit registration in the SA network and when to reestablish the IMS PDU link during the reestablishment time.

To further explain any embodiment of the present disclosure, a specific example is provided.

As shown in fig. 4, an embodiment of the present disclosure provides a communication method applied to a communication system, where the communication system includes a UE and a network device, and the communication method includes the following steps:

step S31: the method comprises the steps that a predetermined field is newly added in a registration receiving message by the network equipment, wherein the predetermined field is used for carrying event information and/or reconstruction time;

here, the event information is an event indicating that the IMS PDU link is disconnected.

Step S32: the network equipment determines reconstruction time determined by each event message;

in an optional embodiment, the network device negotiates with the UE to determine a corresponding reconstruction time for each event information; the network device may also negotiate with the UE to determine flag information for each of the event information. Here, the correspondence relationship between the event information and the reestablishment time may be stored in the network device or the UE.

Step S33: if the network equipment determines that an IMS PDU link is disconnected when the UE is registered in an SA network, sending a registration receiving message; wherein, the predetermined field of the register received message carries the identification information of the event information and the reconstruction time corresponding to the event information;

in an optional embodiment, the network device detects that the UE is registered in an SA network and is abnormal, determines to disconnect the IMS PDU link, and determines an event of the IMS PDU link disconnection; the network device determines that an IMS PDU link is disconnected when the UE is registered in the SA network, and sends a registration receiving message, wherein a predetermined field of the registration receiving message carries the identification information of the time event information and the reconstruction time corresponding to the event information.

In an optional embodiment, a predetermined field of the registration receiving message carries first identification information of a first event and a first reconstruction time corresponding to the first event; or, a predetermined field of the registration receiving message carries second identification information of a second event and second reconstruction time corresponding to the second event; or, the predetermined field of the registration receiving message carries third identification information corresponding to a third event and third reconstruction time corresponding to the third event.

Step S34: the UE determines whether the reestablishment time carried in the registration receiving message is greater than or equal to a preset time or not based on the received registration receiving message; if yes, go to step S35; if not, executing step S36;

in an optional embodiment, if the received registration reception message does not include the reestablishment time but includes the event information, the UE determines the reestablishment time corresponding to the event information based on the event information and a corresponding relationship between the time information and the reestablishment time.

In an optional embodiment, the UE determines whether the first re-establishment time is greater than or equal to the predetermined time based on the received registration receipt message; if yes, go to step S35; if not, executing step S36;

or, the UE determines whether the second reconstruction time is greater than or equal to the predetermined time based on the received registration reception message; if yes, go to step S35; if not, executing step S36;

or, the UE determines whether the third reestablishment time is greater than or equal to the predetermined time based on the received registration reception message; if yes, go to step S35; if not, go to step S36.

Step S35: the UE forbids the UE to register in the SA network within the reestablishment time, and reestablishes the IMS PDU link and registers in the SA network when the reestablishment time is reached;

step S36: and the UE maintains the UE to be registered in the SA network in the reestablishment time, and reestablishes the IMS PDU link when the reestablishment time is reached.

In the embodiment of the disclosure, when the UE registers in the SA network and the IMS PDU link is disconnected, the reestablishment time for reestablishing the IMS PDU may be determined through the event information indicating the IMS PDU link is disconnected and/or the reestablishment time received by the UE; and determining whether the reestablishment time is greater than a preset time, and if so, prohibiting the UE from registering in the SA network in the reestablishment time. In this way, the UE may not be registered on the SA network within the reestablishment time, so that the UE backs-off from the SA network to camp on the LTE network; therefore, the UE can be returned to the 2G or 3G network from the LTE network to carry out voice service, the situation that the voice service is disconnected is reduced, and the user experience is improved. And when the reestablishment time is up, SA network registration and IMS PDU link reestablishment can be initiated, so that the UE can return to the SA network in time to perform voice service based on the IMS PDU link.

Or, if the reestablishment time is less than the predetermined time, the UE may be maintained to be registered in the SA network within the reestablishment time and the IMS PDU link may be reestablished when the reestablishment time is reached. Therefore, the UE can be always registered in the SA network without frequently switching the network, and the stability of network connection is ensured. And because the reestablishment time is relatively short, the situation that the voice service is disconnected due to the fact that the UE is registered in the SA network in the reestablishment time is avoided, and the user experience can be improved.

Fig. 5 provides a communication apparatus according to an exemplary embodiment, which is applied to a UE; as shown in fig. 5, the apparatus includes:

a first determining module 41, configured to determine a reestablishment time for reestablishing an IMS PDU link in response to an IMS PDU link being disconnected when the UE is registered in an SA network;

a processing module 42, configured to prohibit the UE from registering in the SA network during the reestablishment time.

In some embodiments, the processing module 42 is configured to prohibit the UE from registering in the SA network during the reestablishment time if the reestablishment time is greater than or equal to a predetermined time.

In some embodiments, the processing module 42 is configured to maintain the UE registered in the SA network during the reestablishment time if the reestablishment time is less than the predetermined time, and reestablish the IMS PDU link when the reestablishment time is reached.

In some embodiments, the processing module 42 is configured to reestablish the IMS PDU link and register with the SA network when the reestablishment time is reached.

In some embodiments, the apparatus further comprises: the receiving module is used for receiving reconstruction information sent by the network equipment; wherein the reconstruction information includes: the reconstruction time;

the first determining module 41 is further configured to determine the reestablishment time for reestablishing the IMS PDU link according to the reestablishment time included in the reestablishment information.

In some embodiments, the apparatus further comprises: the receiving module is used for receiving reconstruction information sent by the network equipment; wherein the reconstruction information includes: event information indicating a link disconnection of the IMS PDU;

the first determining module 41 is further configured to determine the reconstruction time based on the event information.

In some embodiments, the first determining module 41 is configured to receive a registration receiving message that the network device carries the reestablishment information; alternatively, the first and second electrodes may be,

the first determining module 41 is configured to receive an attach receive message that the network device carries the reestablishment information.

In some embodiments, the first determining module 41 is configured to obtain the preset reestablishment time for reestablishing the IMS PDU link; alternatively, the first and second electrodes may be,

the first determining module 41 is configured to determine the reestablishment time for reestablishing the IMS PDU link based on historical information; wherein the historical information includes the reestablishment time for reestablishing the IMS PDU link historically.

Fig. 6 provides a communication apparatus according to an exemplary embodiment, which is applied to a network device; as shown in fig. 6, the apparatus includes:

a sending module 51, configured to send reestablishment information to the UE in response to an IMS PDU link disconnection when the UE is registered in an SA network; wherein the reestablishment information is used for the UE to determine reestablishment time for reestablishing an IMS PDU link;

In some embodiments, the reconstruction information comprises:

the reconstruction time;

event information indicating a link down of the IMS PDU.

the sending module 51 is configured to send an attach receive message carrying the reestablishment information to the UE.

As shown in fig. 7, in some embodiments, the apparatus further comprises:

a second determining module 52, configured to determine the reestablishment time based on a resource allocation status of the network device.

An embodiment of the present disclosure provides a communication device, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: when the executable instructions are executed, the communication method of any embodiment of the disclosure is realized.

In one embodiment, the communication device comprises: user equipment or network equipment.

The memory may include various types of storage media, which are non-transitory computer storage media capable of continuing to remember the information stored thereon after a communication device has been powered down.

The processor may be connected to the memory via a bus or the like for reading the executable program stored on the memory, for example, for implementing at least one of the methods shown in fig. 1 to 4.

Embodiments of the present disclosure also provide a computer-readable storage medium storing an executable program, wherein the executable program, when executed by a processor, implements the communication method according to any embodiment of the present disclosure. For example, at least one of the methods shown in fig. 1-4 is implemented.

With regard to the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.

Fig. 8 is a block diagram illustrating a terminal 800 in accordance with an example embodiment. For example, the terminal 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like. Here, the terminal may be the UE of any of the above embodiments.

Referring to fig. 8, terminal 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the terminal 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operation at the device 800. Examples of such data include instructions for any application or method operating on terminal 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of terminal 800. Power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for terminal 800.

The multimedia component 808 includes a screen providing an output interface between the terminal 800 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

Sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for terminal 800. For example, sensor assembly 814 can detect the open/closed state of device 800, the relative positioning of components, such as a display and keypad of terminal 800, sensor assembly 814 can also detect a change in position of terminal 800 or a component of terminal 800, the presence or absence of user contact with terminal 800, orientation or acceleration/deceleration of terminal 800, and a change in temperature of terminal 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 816 is configured to facilitate communications between terminal 800 and other devices in a wired or wireless manner. The terminal 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the terminal 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A communication method, performed by a User Equipment (UE), comprising:

responding to the disconnection of a multimedia subsystem protocol data unit (IMS PDU) link when the UE is registered in an independent networking SA network, and determining the reconstruction time for reconstructing the IMS PDU link;

2. The method of claim 1, wherein the prohibiting the UE from registering with the SA network at the reestablishment time comprises:

3. The method of claim 2, further comprising:

4. The method of claim 1, further comprising:

5. The method of claim 1, wherein determining a reestablishment time for reestablishing an IMS PDU link comprises:

determining the reconstruction time based on the event information.

6. The method of claim 5, wherein the receiving the reestablishment information sent by the network device comprises one of:

7. The method of claim 1, wherein determining a reestablishment time for reestablishing an IMS PDU link comprises one of:

acquiring the preset reestablishment time for reestablishing the IMS PDU link;

determining the reestablishment time of the reestablishment of the IMS PDU link based on historical information; wherein the historical information includes the reestablishment time for the IMS PDU link to be reestablished.

8. A communication method, performed by a network device, comprising:

responding to the disconnection of a multimedia subsystem protocol data unit (IMS PDU) link when User Equipment (UE) is registered in an independent networking SA network, and sending reconstruction information to the UE; wherein the reestablishment information is used for the UE to determine reestablishment time for reestablishing an IMS PDU link;

9. The method of claim 8, wherein the reconstruction information comprises at least one of:

the reconstruction time;

event information indicating a link down of the IMS PDU.

10. The method of claim 8, further comprising:

11. A communication device applied to a User Equipment (UE), comprising:

a first determining module, configured to determine a reestablishment time for reestablishing an IMS PDU link in response to a disconnection of a multimedia subsystem protocol data unit IMS PDU link when the UE is registered in an independent networking SA network;

12. The apparatus of claim 11,

and the processing module is configured to prohibit the UE from registering in the SA network within the reestablishment time if the reestablishment time is greater than or equal to a predetermined time.

13. The apparatus of claim 11,

and the processing module is used for maintaining the UE to be registered in the SA network in the reestablishment time if the reestablishment time is less than the preset time, and reestablishing the IMS PDU link when the reestablishment time is reached.

14. The apparatus of claim 11, further comprising:

the receiving module is used for receiving reconstruction information sent by the network equipment; wherein the reconstruction information comprises: event information indicating a link disconnection of the IMS PDU;

15. A communication apparatus, applied to a network device, comprising:

a sending module, configured to send reconstruction information to a user equipment UE in response to a disconnection of a multimedia subsystem protocol data unit IMS PDU link when the UE is registered in an independent networking SA network; wherein the reestablishment information is used for the UE to determine reestablishment time for reestablishing an IMS PDU link;

16. The apparatus of claim 15, further comprising:

17. A communication device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: for implementing the communication method of any one of claims 1-7, 8-10 when executing the executable instructions.

18. A computer-readable storage medium, wherein the computer-readable storage medium stores an executable program, wherein the executable program, when executed by a processor, implements the communication method according to any one of claims 1 to 7 and 8 to 10.