CN111726843B - Method for establishing session, equipment and storage medium - Google Patents
Method for establishing session, equipment and storage medium Download PDFInfo
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- CN111726843B CN111726843B CN202010476490.8A CN202010476490A CN111726843B CN 111726843 B CN111726843 B CN 111726843B CN 202010476490 A CN202010476490 A CN 202010476490A CN 111726843 B CN111726843 B CN 111726843B
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000000694 effects Effects 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0009—Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present disclosure provides a method for establishing a session, a device, and a storage medium, where the method includes determining a target base station, where the target base station is a base station that satisfies a base station handover condition, obtaining a target session group identifier, where the target session group identifier is an identifier of a session group that satisfies a preset activity value, and sending the target session group identifier to the target base station, so that the target base station establishes a first session group context corresponding to the target session group identifier according to the target session group identifier. The efficiency of the base station to establish important session group contexts can be improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method for establishing a session, a device, and a storage medium.
Background
In a trunking communication network, a trunking group context is dynamically created, deleted and notified as the location of a terminal device changes. For inter-base station mobile scenarios of a connected state terminal device, there is an inter-base station (eNB) X2 interface handover scenario.
At present, when the inter-eNB X2 interface is switched, the core network side cannot sense the information of the current group of the terminal equipment, and when the switching is performed, the group resource cannot be quickly established for the group in which the terminal equipment participates and the subscription group, and the terminal equipment is informed of the group resource establishment condition of the target base station (target cell).
Disclosure of Invention
The embodiments of the present specification aim to solve at least one of the technical problems in the related art to some extent.
Therefore, a first object of the embodiments of the present disclosure is to provide a method for establishing a session, so that a target base station can quickly establish a group context for a terminal device according to a target session group identifier, and reduce waiting time for the terminal device to wait for establishing the group context.
A second object of the embodiments of the present specification is to propose a method of establishing a session.
A third object of embodiments of the present specification is to propose a method of establishing a session.
A fourth object of embodiments of the present specification is to propose a device.
A fifth object of embodiments of the present description is to propose a machine-readable storage medium.
To achieve the above object, an embodiment of the first aspect of the present specification proposes a method for establishing a session, the method comprising:
determining a target base station, wherein the target base station is a base station meeting base station switching conditions;
acquiring a target session group identifier, wherein the target session group identifier is an identifier of a session group meeting a preset active value;
and sending the target session group identifier to the target base station so that the target base station establishes a first session group context corresponding to the target session group identifier according to the target session group identifier.
According to the embodiment, the identification (namely, the target session group identification) of the session group meeting the preset active value is sent to the target base station, so that the base station establishes the corresponding session group context according to the target session group identification, and the time for the terminal equipment to wait for the session group context establishment is reduced.
Optionally, the method for determining the target base station includes:
acquiring measurement information between terminal equipment and a first base station, wherein the measurement information comprises signal strength information between the terminal equipment and the first base station;
and when the signal strength information between the terminal equipment and the first base station meets a first threshold value, determining the first base station as a target base station.
Optionally, the obtaining the target session group identifier specifically includes:
and acquiring a session group identifier and a session group activity value of each session group, and determining the session group identifier corresponding to the activity value meeting a second threshold as a target session group identifier when the session group activity value meets the second threshold.
Optionally, the sending the target session group identifier to the target base station specifically includes:
transmitting the target session group identification to the target base station through an inter-base station interface; or alternatively, the process may be performed,
and sending the target session group identification to the target base station through an air interface.
Embodiments of a second aspect of embodiments of the present specification provide a method for establishing a session, where the method is applied to a base station, the method includes:
receiving a target session group identifier sent by target equipment, wherein the target session group identifier is an identifier of a session group meeting a preset active value in the target equipment;
and establishing a first session group context corresponding to the target session group identifier according to the target session group identifier.
As can be seen from the above embodiments, the base station receives the target session group identifier sent by the target device, and can establish a corresponding session group context according to the target session group identifier.
Optionally, establishing a first session group context corresponding to the target session group identifier according to the target session group identifier specifically includes:
determining whether a second session group context matching the target session group identification exists locally;
if not, establishing a first session group context according to the target session group identifier; or alternatively, the process may be performed,
and if the second session group context matched with the target session group identification exists, the second session group context is used as the first session group context.
Optionally, when the base station meets a third threshold according to the acquired measurement information of the terminal equipment and the base station, determining that a base station switching condition is achieved for the terminal equipment;
determining a target base station according to the measurement information of the terminal equipment and other base stations, wherein the target base station is a base station of which the measurement information between other base stations and the terminal equipment meets a first threshold;
acquiring a second session group identifier of the terminal equipment and the terminal equipment, wherein the second session group identifier is an identifier of a session group of which the session group activity value meets a second threshold value;
and sending the second session group identifier to the target base station through an inter-base station interface.
An embodiment of a third aspect of embodiments of the present specification proposes a method for establishing a session, where the method is applied to a terminal device, the method includes:
determining a target base station, wherein the target base station is a base station meeting base station switching conditions;
acquiring a target session group identifier, wherein the target session group identifier is an identifier of a session group meeting a preset active value in the terminal equipment;
and sending the target session group identifier to the target base station through an air interface, so that the target base station establishes a first session group context corresponding to the target session group identifier according to the target session group identifier.
As can be seen from the above embodiments, the terminal device may send the identifier of the session group that itself satisfies the activity value to the target base station, so that the target base station quickly establishes a corresponding session group context, so that the terminal device completes communication through the established session group context.
A fourth object of embodiments of the present description is to propose an apparatus, which has a processor and a machine-readable storage medium,
the machine-readable storage medium stores machine-executable instructions executable by the processor to cause the processor to: the steps in the above embodiments are implemented.
A fifth object of embodiments of the present description is to propose a machine-readable storage medium storing machine-executable instructions which, when invoked and executed by a processor, cause the processor to: the steps in the above embodiments are implemented.
Additional aspects and advantages of embodiments of the present description will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of the present description.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and together with the description, serve to explain the principles of the specification.
Fig. 1 is a flow chart of a method for establishing a session according to an embodiment of the disclosure;
fig. 2 is a flowchart of a method for establishing a session according to an embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to 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 specification. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present description as detailed in the accompanying claims.
The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present description. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
As shown in fig. 1, the present specification discloses a method for establishing a session, the method comprising:
s1, determining a target base station, wherein the target base station is a base station meeting base station switching conditions;
s2, acquiring a target session group identifier, wherein the target session group identifier is an identifier of a session group meeting a preset active value;
s3, the target session group identification is sent to the target base station, so that the target base station establishes a first session group context corresponding to the target session group identification according to the target session group identification.
It should be noted that, the session group context mentioned in this specification may be understood as an uplink and downlink channel for implementing a group session.
In this specification, the terminal device performs group communication through a source base station at a certain time, where a session group context capable of performing group communication for the terminal device exists, however, most of the terminal devices are mobile devices, such as mobile phones, mobile handsets, mobile computers, and the like, which are popular at present, and a user often moves while talking through the session group. When the user moves away from the control range of the source base station (or moves from the first cell to the second cell in the source base station), the situation of base station switching (the situation that cell switching is applicable and reference is subsequently made to base station switching) occurs, namely the terminal equipment needs to be switched from the source base station to the target base station.
In this embodiment, the main body for executing the method may be a terminal device or a base station device, and in this embodiment, the main body is taken as the terminal device for illustration for convenience of distinction.
In combination with step S1, the terminal device determines whether to perform base station handover according to the measurement report (e.g. field strength measurement report) between itself and the source base station, and determines the target base station (i.e. the base station satisfying the handover condition) according to the measurement report between itself and other base stations.
Specifically, when the terminal device detects that the value in the measurement report between itself and the source base station satisfies the third threshold, the terminal device may determine that the base station handover condition is reached. For example, when the terminal device detects that the measurement report (field strength measurement report) between itself and the source base station reaches-75 dB, and the third threshold is-70 dB, the terminal device can be considered to reach the base station handover condition.
Meanwhile, judging whether a base station meeting a first threshold exists in the value in the measurement report between the base station and other base stations, and if so, determining the base station meeting the first threshold as a target base station. For example, the first threshold is-40 dB, and the terminal device may acquire, from measurement reports with other base stations, base stations whose values in the measurement report are greater than or equal to-40 dB; if there are multiple base stations meeting the first threshold, one base station can be arbitrarily selected as the target base station, or one base station is selected from the base stations meeting the first threshold as the target base station according to the optimization principle.
In step S2, the terminal device determines the target base station according to the above steps, and at the same time, the terminal device may obtain the target session group identifier, specifically, the terminal device obtains a session group that meets a preset activity value, where the preset activity value may be a set second threshold, and the second threshold may be understood as a number of calls or a duration of a call, for example, a session group where a call is performed more than N times in a period of time (N is an activity value), where N may be a natural number, and for example, a session group where a call duration in a period of time exceeds M seconds (M is an activity value), where M may be a natural number; in another example, the preset activity value may be understood as a usage status of the session group, for example, when the preset activity value is 1, the session group is being used, i.e. when the preset activity value is 1, the obtained target session group is the session group being used.
In this step, the obtained target session group identification may be a global identification for representing the target session group, such as an ID of the session group.
In step S3, the terminal device may send the target session group identifier to the target base station when RRC (Radio Resource Control ) is established, and specifically, may send the target session group identifier before or after the notification source base station and the target base station are switched.
After the target base station receives the target session group identifier sent by the terminal device, the target base station may perform the following steps, as shown in fig. 2,
s21, receiving a target session group identifier sent by target equipment, wherein the target session group identifier is an identifier of a session group meeting a preset active value in the target equipment;
s22, according to the target session group identification, a first session group context corresponding to the target session group identification is established.
In step S22, the specific process of the base station establishing the first session group context according to the target session group identifier includes that the base station, after acquiring the target session group identifier, may notify the MME (Mobility Management Entity ) to perform handover through Path Switch Request (path switch request), and carry the target session group identifier at Path Switch Request.
The MME judges whether a session group context matched with the target session group identification direction exists in the base station (for convenience of distinguishing, the session group context matched with the target session group identification direction is called a second session group context herein) (meanwhile, whether a cell in the base station exists the session group context matched with the target session group identification direction or not can be judged), and if not, a first session group context is established according to the target session group identification; or if there is a second session group context matching the target session group identification, using the second session group context as the first session group context.
In this embodiment, a second session group context may exist in the base station, but the cell in which the second session group context is located is not a target cell, where the cell is a division of different areas by the base station, and under one base station, there are typically multiple cells, and one cell can be considered to cover a certain area, and a common theoretical model is 1 base station 3 cells, and each cell covers 120 degrees of area. The target cell in this embodiment is the cell to which the terminal device should belong, and if this occurs, the MME notifies the base station to modify the second session group context to establish the second session group context into the target cell, and uses the second session group context established into the target cell as the first session group context.
From the above embodiments, it can be seen that, when the terminal device determines that the base station needs to be switched, the terminal device sends the target session group identifier to the target base station, so that after the base station receives the target session group identifier, the base station can establish a corresponding session group context according to the target session group identifier, thereby greatly shortening the time for establishing the target session group context for meeting the requirement of the base station, and avoiding the situation that the user affects the call quality due to overlong establishment time of the target session group context caused by the cross-base station call.
In combination with the above embodiment, as a base station, the obtained target session group identifier may also be actively sent to the target base station through an inter-base station interface (X2 interface), which specifically includes the following steps:
the base station being used as the terminal device may be understood as a source base station, and when the terminal device and the self measurement information acquired by the source base station meet a third threshold value, a base station handover condition is determined to be achieved for the terminal device, where the third threshold value may be a field strength value, and a determination process is similar to the third threshold value in the above embodiment, and will not be described in detail herein.
Further, when it is determined that the terminal device satisfies the base station handover condition, the source base station may acquire measurement information of the terminal base station and other base stations (similar to the embodiment of the first threshold in the above embodiment, which is not described in detail herein), and determine the target base station.
Further, a second session group identifier of the terminal equipment and the terminal equipment is obtained, wherein the second session group identifier is an identifier of a session group of which the session group activity value meets a second threshold value. In this step, the base station itself records the related information of the call with the terminal device, so that the second session group identifier (similar to the target session group identifier in the above embodiment) can be selected according to the activity values of different session groups.
Further, the source base station sends the second session group identifier to the target base station through the inter-base station X2 interface.
As can be seen from this embodiment, in this embodiment, the source base station may send the second session group identifier to the target base station through the inter-base station interface.
The present disclosure also provides, in accordance with embodiments in the present specification, an apparatus having a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: the method steps of the above embodiments are implemented.
The device may be a base station or a terminal device.
The present disclosure also provides a machine-readable storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to: the method steps of the above embodiments are implemented.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Other embodiments of the present description will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the specification following, in general, the principles of the specification and including such departures from the present disclosure as come within known or customary practice within the art to which the specification pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the specification being indicated by the following claims.
It is to be understood that the present description is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.
The foregoing description of the preferred embodiments is provided for the purpose of illustration only, and is not intended to limit the scope of the disclosure, since any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.
Claims (10)
1. A method of establishing a session, the method comprising:
determining a target base station, wherein the target base station is a base station meeting base station switching conditions;
acquiring a target session group identifier, wherein the target session group identifier is an identifier of a session group meeting a preset active value;
and sending the target session group identifier to the target base station so that the target base station establishes a first session group context corresponding to the target session group identifier according to the target session group identifier.
2. The method of claim 1, wherein the method of determining the target base station comprises:
acquiring measurement information between terminal equipment and a first base station, wherein the measurement information comprises signal strength information between the terminal equipment and the first base station;
and when the signal strength information between the terminal equipment and the first base station meets a first threshold value, determining the first base station as a target base station.
3. The method according to claim 1, wherein the obtaining the target session group identifier specifically includes:
and acquiring a session group identifier and a session group activity value of each session group, and determining the session group identifier corresponding to the activity value meeting a second threshold as a target session group identifier when the session group activity value meets the second threshold.
4. The method according to claim 1, wherein said sending the target session group identification to the target base station specifically comprises:
transmitting the target session group identification to the target base station through an inter-base station interface; or alternatively, the process may be performed,
and sending the target session group identification to the target base station through an air interface.
5. A method of establishing a session, the method being applied to a base station, the method comprising:
receiving a target session group identifier sent by target equipment, wherein the target session group identifier is an identifier of a session group meeting a preset active value in the target equipment;
and establishing a first session group context corresponding to the target session group identifier according to the target session group identifier.
6. The method according to claim 5, wherein the establishing a first session group context corresponding to the target session group identifier according to the target session group identifier specifically includes:
determining whether a second session group context matching the target session group identification exists locally;
if not, establishing a first session group context according to the target session group identifier; or alternatively, the process may be performed,
and if the second session group context matched with the target session group identification exists, the second session group context is used as the first session group context.
7. The method of claim 5, wherein the method further comprises:
when the base station meets a third threshold according to the acquired measurement information of the terminal equipment and the base station, determining that the base station switching condition is met for the terminal equipment;
determining a target base station according to the measurement information of the terminal equipment and other base stations, wherein the target base station is a base station of which the measurement information between other base stations and the terminal equipment meets a first threshold;
acquiring a second session group identifier of the terminal equipment and the terminal equipment, wherein the second session group identifier is an identifier of a session group of which the session group activity value meets a second threshold value;
and sending the second session group identifier to the target base station through an inter-base station interface.
8. A method of establishing a session, the method being applied to a terminal device, the method comprising:
determining a target base station, wherein the target base station is a base station meeting base station switching conditions;
acquiring a target session group identifier, wherein the target session group identifier is an identifier of a session group meeting a preset active value in the terminal equipment;
and sending the target session group identifier to the target base station through an air interface, so that the target base station establishes a first session group context corresponding to the target session group identifier according to the target session group identifier.
9. A terminal device, characterized in that the terminal device has a processor and a machine-readable storage medium,
the machine-readable storage medium stores machine-executable instructions executable by the processor to cause the processor to: method steps of any of claims 1-8 are carried out.
10. A machine-readable storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to: method steps of any of claims 1-8 are carried out.
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