CN109151941B - Method and base station for implementing service initialization redirection and switching - Google Patents
Method and base station for implementing service initialization redirection and switching Download PDFInfo
- Publication number
- CN109151941B CN109151941B CN201710506177.2A CN201710506177A CN109151941B CN 109151941 B CN109151941 B CN 109151941B CN 201710506177 A CN201710506177 A CN 201710506177A CN 109151941 B CN109151941 B CN 109151941B
- Authority
- CN
- China
- Prior art keywords
- terminal
- target
- base station
- service
- redirection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 158
- 230000008569 process Effects 0.000 claims abstract description 86
- 230000011664 signaling Effects 0.000 claims description 46
- 238000005259 measurement Methods 0.000 claims description 19
- 238000004590 computer program Methods 0.000 claims description 15
- 230000003993 interaction Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 9
- 230000001960 triggered effect Effects 0.000 claims description 9
- 230000000977 initiatory effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000760358 Enodes Species 0.000 description 1
- 101100346525 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MSG5 gene Proteins 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method and a base station for realizing service initialization redirection and switching.A terminal UE detects a random access process executed by the terminal when initializing a service and triggers a redirection flow; in the redirection process, the terminal is redirected to other target systems, target frequency points or target cells, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells. By utilizing the characteristics of overlapping coverage, compensation coverage and the like of a multi-frequency point and multi-system network, the terminal is redirected to other target systems, target frequency points or target cells before the bearer is established, so that the problem of flow conflict can be solved, the failure probability of the terminal initialization service is reduced, the service initialization time delay is reduced, and the problem of calling failure and called failure is solved.
Description
Technical Field
The present invention relates to a service initialization technology, and in particular, to a method and a base station for implementing service initialization redirection and handover.
Background
There are many high interference scenarios in current communication networks, such as atmospheric waveguide interference, high load scenarios, and weak coverage scenarios. Under these high interference scenarios, a phenomenon of call failure of Voice over LTE (VoLTE) based IMS may occur.
Conventional techniques for resolving call origination failures include: a switching (bSRVCC, Single Radio Voice Call Continuity (SRVCC) before ringing) technology before a Call of a VoLTE service is initiated, wherein in the Call initiating process of the VoLTE, the Enhanced Single Radio Voice Call Continuity (eSRVCC) adopted by the Call is moved to 2G for initiating the Call; and switching in the LTE system in the VoLTE calling process, and switching the user to an adjacent co-frequency or inter-frequency LTE cell through a traditional switching process.
The bSRVCC technology cannot solve the problem of call origination failure of a called party and the problem of handover before completion of establishment of a VoLTE service bearer, and handover delay is longer than that in an LTE system. This is because: when eSRVCC switching is carried out, the terminal UE can measure the cell signals and the different system 2G frequency points, and the 2G frequency points can be switched when the cell signals are lower than the threshold and the 2G frequency point signals are higher than the threshold.
The problem of conflict between a switching process and a VoLTE service bearer establishment process exists in the switching technology in the LTE system. This is because: when starting call of VoLTE, a service bearer needs to be established first, and then conversation can be carried out; before the intra-LTE system intra-frequency or inter-frequency switching is carried out, the terminal UE can measure the intra-frequency or inter-frequency points in advance, and the intra-LTE system switching can be carried out only under the condition that the switching threshold is met. In this case, the VoLTE service bearer is preferentially established and then the handover is performed, so that there is a risk of bearer establishment failure or bearer loss, in other words, bearer establishment and intra-system handover are two different procedures, which are independent of each other, and therefore may occur simultaneously, so that the two procedures may conflict with each other, and the base station needs to determine which procedure is processed at the end.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method and a base station for implementing service initialization redirection and handover, so as to solve the problem that the existing technology for processing call origination failure cannot solve the call origination failure of a called party, and the problem that a handover flow conflicts with a VoLTE service bearer establishment flow.
In order to solve the above technical problem, an embodiment of the present invention provides a method for implementing service initialization redirection, which is applied to a base station, and the method includes:
when a terminal UE initializes a service, a random access process executed by the terminal is detected, and a redirection process is triggered;
in the redirection process, the terminal is redirected to other target systems, target frequency points or target cells, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells.
In the method, when a terminal UE initializes a service, a random access process executed by the terminal is detected, and the triggering redirection process comprises:
when a terminal initializes a service, detecting a connection establishment reason field in a random access signaling sent in the random access process of the terminal;
if the connection establishment reason field is detected to be that the calling terminal initializes a service, detecting a current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process.
In the method, detecting the current preset condition comprises: detecting a preset condition of the base station, and detecting the preset condition of the adjacent base station by performing information interaction with the adjacent base station, wherein the preset condition comprises the following steps: at least one of radio environment quality, interference, loading conditions and service quality.
In the method, in the redirection process, redirecting the terminal to other target systems, target frequency points or target cells comprises:
in the random access process of the terminal, random access signaling issued to the terminal carries other target systems, target frequency points or target cells, and the random access signaling indicates that the terminal needs to try to connect to the other target systems, the target frequency points or the target cells;
in the random access process of the terminal, a reason value of a random access signaling sent to the terminal carries a redirection reason, or the reason value carries other target systems, target frequency points or target cells, or the reason value carries the two parts, and the terminal is indicated to try to connect to other target systems, target frequency points or target cells;
after receiving an uplink random access signaling in the random access process or before service bearing is established after the random access is completed, a base station sends a connection release message to a terminal, wherein the reason value of the connection release message carries a redirection reason or other target systems, target frequency points or target cells or both, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
in the random access process of the terminal, in a random access signaling sent to the terminal or a measurement control message carried at the same time, the terminal is indicated to measure the frequency point carried in the measurement control message to obtain measurement information; if the measurement information reported by the terminal meets the preset conditions, sending a redirection instruction to the terminal, wherein the redirection instruction carries redirection of other target systems, target frequency points or target cells, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
before sending the random access signaling message to the terminal, the uplink transmitting power of the random access signaling message sent to the base station by the terminal is detected, and the terminal is selectively redirected to a proper target system, a target frequency point or a target cell.
In the method, when a terminal UE initializes a service, a random access process executed by the terminal is detected, and the triggering redirection process comprises:
after completing random access and establishing a corresponding bearer, the base station performs deep packet inspection on a data packet belonging to the bearer;
if the first type of message is detected in the bearer data packet, the base station detects a current preset condition, and if the preset condition exceeds a threshold value, a redirection process is triggered.
A base station for implementing service initialization redirection, comprising:
a detecting unit, configured to detect a random access procedure executed by a terminal and trigger a redirection procedure when a service is initialized by a terminal UE;
and the redirection unit is used for redirecting the terminal to other target systems, target frequency points or target cells in the redirection process, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells.
A base station for implementing service initialization redirection comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor; when the processor executes the program, the method for realizing the service initialization redirection is realized.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for carrying out an initial redirection of traffic.
A method for realizing service initialization switching is applied to a base station, and comprises the following steps:
after completing random access and establishing a corresponding bearer, the base station performs deep packet inspection on the bearer data packet;
if the first type of message of the calling terminal is detected in the bearer data packet, detecting the current preset condition, and if the preset condition exceeds a threshold value, triggering a switching process;
after the switching process is completed, the terminal continues to perform the corresponding service in the target cell.
In the method, detecting the current preset condition comprises: detecting a preset condition of a base station, and detecting the preset condition of an adjacent base station by carrying out information interaction with the adjacent base station; the preset conditions include: at least one of radio environment quality, interference, loading conditions and service quality.
In the method, the switching process specifically includes:
carrying out context transmission with a target base station, reserving resources by the target base station, sending a switching command to the terminal by the base station, wherein the switching command indicates other systems or other frequency points or other cells to which the terminal is switched; and updating the path information of the signaling plane and the media plane with the core network to ensure that the subsequent data can be correctly sent to the target base station.
A base station for implementing service initiation handover, the base station comprising:
a handover detection unit, configured to perform deep packet detection on the bearer data packet by the base station after completing the random access and establishing a corresponding bearer;
the switching unit is used for detecting the current preset condition if the first type of message of the calling terminal is detected in the bearer data packet, and triggering a switching process if the preset condition exceeds a threshold value;
after the switching process is completed, the terminal continues to perform the voice service in the target cell.
A base station for implementing service initialization redirection comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor; when the processor executes the program, the method for realizing the service initialization switching is realized.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for performing a service initialization switch.
Compared with the prior art, the method and the base station for realizing the service initialization redirection and the service switching provided by the embodiment of the invention have the following beneficial effects: by utilizing the characteristics of overlapping coverage, compensation coverage and the like of a multi-frequency point and multi-system network, the terminal is redirected to other target systems, target frequency points or target cells before the bearer is established, so that the problem of flow conflict can be solved, the failure probability of the terminal initialization service is reduced, the service initialization time delay is reduced, and the problem of calling failure and called failure is solved; and after the bearer is established, if the preset condition is detected to exceed the threshold value, switching is carried out, and after the switching, the terminal continues to carry out the corresponding service in the target cell, so that the user experience is guaranteed under various scenes.
Drawings
Fig. 1 is a schematic flow chart of a method for service initialization redirection and handover;
FIG. 2 is a first schematic view of a redirection process;
fig. 3 is a first schematic diagram of a redirection signaling flow;
FIG. 4 is a second schematic diagram of a redirection procedure;
fig. 5 is a schematic diagram of a redirection signaling flow diagram ii;
FIG. 6 is a third schematic diagram of a redirection flow;
fig. 7 is a third schematic diagram of a redirection signaling flow;
FIG. 8 is a signaling flow diagram;
fig. 9 is a schematic flow chart of performing redirection after the random access procedure;
fig. 10 is a flowchart illustrating a method for implementing service initialization switching.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
In the existing communication network, a dual-layer network of an F frequency band and a D frequency band of LTE is mostly deployed outdoors, a 2G GSM network is superimposed at the same time, and an FDD network is also deployed in the future.
An embodiment of the present invention provides a method for service initialization redirection and handover, which is applied to a base station as shown in fig. 1, and the method includes:
step 101, when a terminal UE initializes a service, detecting a random access process executed by the terminal, and triggering a redirection flow;
step 102, in the redirection process, the terminal is redirected to other target systems, target frequency points or target cells, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells.
By applying the technology provided by the embodiment of the invention, the terminal is redirected to other target systems, target frequency points or target cells before the bearer is established by utilizing the characteristics of multi-frequency points, overlapping coverage of multi-system networks, compensation coverage and the like, so that the problem of flow conflict can be solved, the failure probability of the terminal initialization service is reduced, the service initialization time delay is reduced, and the user experience is ensured in various scenes.
In other target systems, target frequency points or target cells, other target systems include: TDD-LTE, FDD-LTE, TD-SCDMA, WCDMA, GSM and the like, and the target frequency points comprise: 900MHz, 1800MHz, 2.3GHz, 2.6GHz, etc., the target cell includes: and cells in the same system, such as PCI 0 to PCI 503.
In a preferred embodiment, when a terminal UE initializes a service, a random access procedure performed by the terminal is detected, and triggering a redirection procedure includes:
when a terminal initializes a service, detecting a connection establishment reason field in a random access signaling sent in the random access process of the terminal;
if the connection establishment reason field is detected to be that the calling terminal initiates a service, detecting the current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process.
In a preferred embodiment, detecting the current preset condition comprises: detecting a preset condition of the base station, and detecting the preset condition of the adjacent base station by performing information interaction with the adjacent base station, wherein the preset condition comprises the following steps: at least one of radio environment quality, interference, loading conditions and service quality.
In an application scenario, the initializing a service by a terminal UE specifically includes: when a terminal UE performs a voice service origination process, a base station redirects the terminal UE to another system, frequency point, or cell during a terminal random access process, and the terminal needs to initiate the voice service again in a target cell, which includes:
after the terminal initiates a VoLTE voice call initiating process, the base station detects an MSG3 message, such as an RRC connection establishment cause field in an RRC connection establishment request, which is sent in a random access process of the terminal, where the RRC connection establishment cause field at least includes: emergency call, high priority access, called access, calling signaling transmission, calling data transmission, calling initiated voice call and the like;
if the base station detects that the reason field in the MSG3 message is "voice call initiated by caller", for example, mo-VoiceCall, then current preset conditions are detected, where the preset conditions include: wireless environment quality, interference condition, load condition, service quality and the like;
and if the preset condition exceeds the threshold value, triggering a redirection process.
The base station detects the current preset condition and comprises the following steps: detecting the preset conditions of the base station, or detecting the preset conditions of the adjacent base stations by carrying out information interaction with other adjacent base stations; the setting conditions comprise:
radio environment quality such as RSRP, CQI, MCS, etc.;
interference, such as SINR, uplink noise floor rise (IoT), etc.;
load conditions such as PRB resource occupancy, cell user number, traffic volume, etc.;
and service quality such as cell PDCP throughput, MOS and PDCP packet loss rate and the like.
In a preferred embodiment, in the redirection procedure, redirecting the terminal to another target system, a target frequency point, or a target cell includes:
in the random access process of the terminal, random access signaling issued to the terminal carries other target systems, target frequency points or target cells, and the random access signaling indicates that the terminal needs to try to connect to the other target systems, the target frequency points or the target cells;
in the random access process of the terminal, a reason value of a random access signaling sent to the terminal carries a redirection reason, or the reason value carries other target systems, target frequency points or target cells, or the reason value carries the two parts, and the terminal is indicated to try to connect to other target systems, target frequency points or target cells;
after receiving an uplink random access signaling in the random access process or before service bearing is established after the random access is completed, a base station sends a connection release message to a terminal, wherein the reason value of the connection release message carries a redirection reason or other target systems, target frequency points or target cells or both, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
in the random access process of the terminal, in a random access signaling sent to the terminal or a measurement control message carried at the same time, the terminal is indicated to measure the frequency point carried in the measurement control message to obtain measurement information; if the measurement information reported by the terminal meets the preset conditions, sending a redirection instruction to the terminal, wherein the redirection instruction carries redirection of other target systems, target frequency points or target cells, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
before sending the random access signaling message to the terminal, the uplink transmitting power of the random access signaling message sent to the base station by the terminal is detected, and the terminal is selectively redirected to a proper target system, a target frequency point or a target cell.
In one application scenario, the implementation of the redirection procedure is diverse, which includes:
in a first manner, as shown in fig. 2 and fig. 3, after a terminal UE initiates a VoLTE voice call origination procedure, a base station detects an RRC connection establishment cause field in an MSG3 message that is sent in a UE random access procedure;
if the base station detects that the reason field in the MSG3 message is ' calling initiated voice call ', such as mo-VoiceCall ', whether the uplink interference of the cell exceeds a threshold value is detected;
if the value exceeds the threshold, the base station may carry redirection target system or frequency point or cell information, such as redirection dcarrierinfo, in an MSG4 message, such as RRC connection establishment RRCConnectionSetup, sent to the terminal UE in the terminal UE random access process, where the information value may be explicit (such as 2.6GHz) or implicit (such as f1, f2), and indicates that the terminal UE needs to try to connect to the target system or frequency point or cell next step;
after receiving the RRCConnectionSetup, the terminal UE needs to re-initiate the service in the target cell immediately.
In a second mode, as shown in fig. 4 and 5, the base station detects that the cause value carried by the message that the terminal UE randomly accesses the MSG3 is mo-VoiceCall;
detecting whether uplink interference of the cell exceeds a threshold value;
if the value exceeds the threshold, the base station may send a MSG4 message, such as a reason value of RRC connection reject RRCConnectionReject, to the terminal UE during the random access of the terminal UE, where the reason is a redirection reason, such as reject cause: redirection, or redirection target system or frequency point or cell information, such as redirectedcourierinfo, or both, where the information value may be explicit (e.g. 2.6GHz) or implicit (e.g. f1, f2), indicating that the UE needs to attempt to connect to the target system or frequency point or cell next;
after receiving the MSG4, the UE needs to re-initiate the service in the target cell immediately.
In a third mode, as shown in fig. 6 and 7, the base station detects that the cause value carried by the UE random access MSG3 message is mo-VoiceCall;
detecting whether uplink interference of the cell exceeds a threshold value;
if the value exceeds the threshold, the base station may receive the MSG3 message in the random access process, or may issue an RRC connection release message, such as RRCConnectionRelease, to the UE before the service bearer is established after the random access is completed, where the cause value of the message carries a redirection cause, such as releasecaase: redirection, or redirection target system or frequency point or cell information, such as redirectedcourierinfo, or both, where the information value may be explicit (e.g. 2.6GHz) or implicit (e.g. f1, f2), indicating that the terminal UE needs to attempt to connect to the target system or frequency point or cell next step;
after receiving RRCConnectionRelease, the terminal UE needs to re-initiate the service in the target cell immediately.
Similarly, as shown in fig. 8, after receiving the MSG5, the base station sends an RRCConnectionRelease message to the terminal UE, and this process includes:
the base station detects that the content of the data packet carried by the QCI5 of the UE is an INVITE message, if the uplink interference of an adjacent cell is judged to be smaller than that of the cell, the base station immediately issues a redirection instruction (such as RRCConnectionRelease) and carries redirection carrier information (such as redirection Carrier Info) and path information of a core network updating signaling plane and a media plane, and after receiving a redirection command, the UE needs to immediately restart the service in a target cell.
In a fourth mode, the MSG4 message (i.e. RRC connection setup) sent by the base station to the terminal UE during the random access of the terminal UE may also carry a measurement control message (e.g. measConfig) at the same time, and the terminal UE is instructed to measure the frequency point carried in the measurement control message; if the measurement information reported by the UE meets the preset conditions, sending a redirection instruction, such as RRCConnectionRelease, to the terminal UE, wherein the message carries redirection target system or frequency point or cell information, such as redirection dcarrierinfo, and the information value can be explicit (such as 2.6GHz) or implicit (such as f1 and f2), so as to indicate that the UE needs to try to connect to the target system or frequency point or cell in the next step;
the base station can select to detect the uplink transmitting power of the MSG3 message sent by the terminal UE to the base station before sending the message to the terminal UE, and selectively redirect the terminal UE to a proper cell; the specific process can include:
if the uplink transmitting power exceeds the threshold value, the terminal UE can be preliminarily judged to be at the edge of a cell or in a high-interference scene, and the terminal UE is selected to be redirected to an adjacent same-system pilot frequency or different-system cell; if the uplink transmitting power does not exceed the threshold, the terminal UE can be preliminarily judged to be in the center of the cell or in a low-interference scene, and the terminal UE can be redirected to a same-system different-frequency or different-system cell overlapped and covered with the cell or the frequency point according to actual requirements; the base station can also directly appoint a redirected target system or frequency point or cell for the terminal UE without selecting to detect the uplink transmitting power of the terminal UE.
In a preferred embodiment, after receiving the redirection command, the UE needs to re-initiate the initialization service in the target cell, and cannot actively disconnect the connection.
The redirection procedure may occur not only during the random access procedure but also after the random access procedure. As shown in fig. 9, in a preferred embodiment, when the UE initializes a service, and detects a random access procedure performed by the UE, the triggering of the redirection procedure includes:
after completing random access and establishing a corresponding bearer, the base station performs deep packet inspection on the bearer data packet;
if the first type of message is detected in the bearer data packet, the base station detects a current preset condition, and if the preset condition exceeds a threshold value, a redirection process is triggered. The first type of message may specifically be an INVITE (INVITE) message of the calling terminal.
In an application scenario, for VoLTE service, that is, a voice call service type, after random access, QCI9, and QCI5 are completed, a base station performs deep packet inspection on a QCI5 data packet, which may be an INVITE (INVITE), PRACK, UPDATE, or the like;
if the INVITE message is detected, the base station detects the current preset conditions, such as wireless environment quality, interference condition, load condition, service quality and the like, and if the preset conditions exceed a threshold value, a redirection process is triggered;
the base station detects the current preset condition, can detect the preset condition of the base station, and can also detect the preset condition of the adjacent base station by carrying out information interaction with other adjacent base stations.
QCI9 refers to the default bearer for transporting data traffic and QCI5 refers to the default bearer for SIP signaling.
In the process of implementing service initialization redirection and service initialization handover, it is necessary to detect and transmit parameters related between a base station and a terminal, where a QoS Class Identifier is a scale value used to measure packet forwarding behaviors (such as packet loss rate and packet delay budget) provided for a specific Service Data Flow (SDF), and it is applied to both GBR and Non-GBR bearers and used to specify control bearer level packet forwarding modes defined in an access node, such as scheduling weight, admission threshold, queue management threshold, link layer protocol configuration, and these are pre-configured in the access network node by an operator.
The embodiment of the invention provides a base station for realizing service initialization redirection, which comprises:
a detecting unit, configured to detect a random access procedure executed by a terminal and trigger a redirection procedure when a service is initialized by a terminal UE;
and the redirection unit is used for redirecting the terminal to other target systems, target frequency points or target cells in the redirection process, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells.
In a preferred embodiment, the detection unit comprises:
the in-process triggering module is used for detecting a connection establishment reason field in a random access signaling sent in the random access process of the terminal when the terminal initializes a service;
if the connection establishment reason field is detected to be that the calling terminal initiates a service, detecting the current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process.
In a preferred embodiment, the redirection unit comprises:
the redirection unit includes:
a redirection first module, configured to carry, in a terminal random access process, a random access signaling issued to a terminal, other target systems, target frequency points, or target cells, where the random access signaling indicates that the terminal needs to attempt to connect to the other target systems, the target frequency points, or the target cells;
a redirection second module, configured to, in a random access process of the terminal, carry a redirection reason in a cause value of a random access signaling sent to the terminal, or carry other target systems, target frequency points, or target cells in the cause value, or carry the two parts in the cause value, and indicate that the terminal needs to attempt to connect to other target systems, target frequency points, or target cells;
a third redirection module, configured to send a connection release message to the terminal after the base station receives an uplink random access signaling in a random access process or before a service bearer is established after a random access is completed, where a cause value of the connection release message carries a redirection reason, or carries other target systems, target frequency points, or target cells, or carries both of them, and indicates that the terminal needs to attempt to connect to other target systems, target frequency points, or target cells;
a redirection fourth module, configured to instruct the terminal to measure the frequency point carried in the measurement control message to obtain measurement information, in a random access signaling issued to the terminal or in a measurement control message carried at the same time in a random access process of the terminal; if the measurement information reported by the terminal meets the preset conditions, sending a redirection instruction to the terminal, wherein the redirection instruction carries redirection of other target systems, target frequency points or target cells, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
and the redirection fifth module is used for detecting the uplink transmitting power of the random access signaling message sent by the terminal to the base station before sending the random access signaling message to the terminal, and selectively redirecting the terminal to other appropriate target systems, target frequency points or target cells.
In a preferred embodiment, the detection unit comprises:
the process post-triggering module is used for carrying out deep packet detection on the bearer data packet by the base station after the random access is completed and the corresponding bearer is established;
if the INVITE message is detected in the bearer data packet, the base station detects a current preset condition, and if the preset condition exceeds a threshold value, a redirection flow is triggered.
Specifically, the post-process triggering module is configured to perform deep packet inspection on the QCI5 data packet by the base station after the random access, the QCI9, and the QCI5 are established;
if the INVITE message is detected, the base station detects a current preset condition, and if the preset condition exceeds a threshold value, a redirection flow is triggered.
The embodiment of the invention provides a base station for realizing service initialization redirection, which comprises a memory, a processor and a computer program, wherein the computer program is stored on the memory and can run on the processor; when the processor executes the program, the method for realizing the service initialization redirection is realized.
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for implementing service initialization redirection.
As shown in fig. 10, an embodiment of the present invention provides a method for implementing service initialization switching, where the method is applied to a base station, and the method includes:
after completing random access and establishing a corresponding bearer, the base station performs deep packet inspection on the bearer data packet;
if the first type of message of the calling terminal is detected in the bearer data packet, detecting the current preset condition, and if the preset condition exceeds a threshold value, triggering a switching process;
after the switching process is completed, the terminal continues to perform the corresponding service in the target cell.
By applying the technology provided by the embodiment of the invention, the characteristics of overlapping coverage, compensation coverage and the like of multi-frequency points and multi-system networks are utilized, after the bearer is established, if the preset condition is detected to exceed the threshold value, switching is carried out, and after the switching, the terminal continues to carry out corresponding services in the target cell, thereby ensuring the user experience in various scenes.
In a preferred embodiment, detecting the current preset condition comprises: detecting a preset condition of a base station, and detecting the preset condition of an adjacent base station by carrying out information interaction with the adjacent base station; the preset conditions include: at least one of radio environment quality, interference, loading conditions and service quality.
In a preferred embodiment, the handover procedure specifically includes:
carrying out context transmission with a target base station, reserving resources by the target base station, sending a switching command to the terminal by the base station, wherein the switching command indicates other systems or other frequency points or other cells to which the terminal is switched; and updating the path information of the signaling plane and the media plane with the core network to ensure that the subsequent data can be correctly sent to the target base station.
In a preferred embodiment, after the random access, the QCI9 and the QCI5 are established, the base station performs deep packet inspection on a QCI5 data packet, which may be INVITE, PRACK, UPDATE, and the like;
if the INVITE message is detected, the base station detects a current preset condition, such as wireless environment quality, interference condition, load condition, service quality and the like, and if the current preset condition exceeds a threshold value, a redirection process is triggered.
In a preferred embodiment, triggering the redirection procedure may include: the base station sends a redirection instruction, such as RRCConnectionRelease, to the terminal UE, wherein the redirection instruction should carry redirection carrier information, such as redirection carrier Info, and indicates that the terminal UE needs to try to reside in a specified other system or other frequency points or other cells in the next step;
after receiving the redirection command, the terminal UE needs to initiate the voice service again in the target cell, and the connection can not be actively disconnected.
The base station detects the current preset condition, can detect the self preset condition, and can also detect the preset condition of the adjacent base station by carrying out information interaction with other adjacent base stations.
The embodiment of the invention provides a base station for realizing service initialization switching, which comprises:
a handover detection unit, configured to perform deep packet detection on the bearer data packet by the base station after completing the random access and establishing a corresponding bearer;
the switching unit is used for detecting the current preset condition if the first type of message of the calling terminal is detected in the bearer data packet, and triggering a switching process if the preset condition exceeds a threshold value;
after the switching process is completed, the terminal continues to perform the voice service in the target cell.
In a preferred embodiment, the switching unit includes:
the inter-base station interaction unit is used for carrying out context transmission with a target base station, and the target base station reserves resources;
the switching command module is used for sending a switching command to the terminal and indicating other systems or other frequency points or other cells to which the terminal can be switched;
and the updating module is used for updating the path information of the signaling plane and the media plane with the core network so as to ensure that the subsequent data can be correctly sent to the target base station.
The embodiment of the invention provides a base station for realizing service initialization redirection, which comprises a memory, a processor and a computer program, wherein the computer program is stored on the memory and can run on the processor; when the processor executes the program, the method for realizing the service initialization switching is realized.
The embodiment of the invention provides a computer readable storage medium, on which a computer program is stored, and the program, when executed by a processor, implements the steps in the method for implementing service initialization switching.
The technology provided by the embodiment of the invention utilizes the characteristics of multi-frequency points, overlapping coverage of multi-system networks, compensation coverage and the like, and redirects the terminal to other target systems, target frequency points or target cells before the bearing is established, so that the problem of flow conflict can be solved, the failure probability of the terminal initialization service is reduced, the service initialization time delay is reduced, and the problem of calling and called origination failure is solved; and after the bearer is established, if the preset condition is detected to exceed the threshold value, switching is carried out, and after the switching, the terminal continues to carry out the corresponding service in the target cell, so that the user experience is guaranteed under various scenes.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In addition, the terms "system" and "network" are often used interchangeably herein.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
In the embodiment of the invention, the source base station is the base station to which the current service cell of the terminal belongs, and the target base station is the base station to which the target cell switched by the terminal belongs. In the embodiment of the present invention, the Base Station may be a macro Base Station (macro Base Station), a micro Base Station (Pico Base Station), a Node B (3G mobile Station), an enhanced Base Station (eNB), a Home enhanced Base Station (Femto eNB or Home eNode B or Home eNB or HeNB), a relay Station, an access point, an RRU (Remote Radio Unit), an RRH (Remote Radio Head), and the like. The terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including a User Equipment (UE), a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer premises equipment) or mobile smart hotspot capable of converting mobile signals into WiFi signals, a smart appliance, or other device capable of autonomously communicating with a mobile communication network without human operation, etc.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A method for realizing service initialization redirection is applied to a base station, and comprises the following steps:
when a terminal UE initializes a service, a random access process executed by the terminal is detected, and a redirection process is triggered, which comprises the following steps: when a terminal initializes a service, detecting a connection establishment reason field in a random access signaling sent in the random access process of the terminal; if the connection establishment reason field is detected to be that the calling terminal initializes a service, detecting a current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process;
in the redirection process, the terminal is redirected to other target systems, target frequency points or target cells, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells.
2. The method of claim 1, wherein detecting a current preset condition comprises: detecting a preset condition of the base station, and detecting the preset condition of the adjacent base station by performing information interaction with the adjacent base station, wherein the preset condition comprises the following steps: at least one of radio environment quality, interference, loading conditions and service quality.
3. The method of claim 1, wherein in the redirection process, redirecting the terminal to another target system, a target frequency point, or a target cell comprises:
in the random access process of the terminal, random access signaling issued to the terminal carries other target systems, target frequency points or target cells, and the random access signaling indicates that the terminal needs to try to connect to the other target systems, the target frequency points or the target cells;
in the random access process of the terminal, a reason value of a random access signaling sent to the terminal carries a redirection reason, or the reason value carries other target systems, target frequency points or target cells, or the reason value carries the two parts, and the terminal is indicated to try to connect to other target systems, target frequency points or target cells;
after receiving an uplink random access signaling in the random access process or before service bearing is established after the random access is completed, a base station sends a connection release message to a terminal, wherein the reason value of the connection release message carries a redirection reason or other target systems, target frequency points or target cells or both, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
in the random access process of the terminal, in a random access signaling sent to the terminal or a measurement control message carried at the same time, the terminal is indicated to measure the frequency point carried in the measurement control message to obtain measurement information; if the measurement information reported by the terminal meets the preset conditions, sending a redirection instruction to the terminal, wherein the redirection instruction carries redirection of other target systems, target frequency points or target cells, and indicates that the terminal needs to try to connect to other target systems, target frequency points or target cells;
before sending the random access signaling message to the terminal, the uplink transmitting power of the random access signaling message sent to the base station by the terminal is detected, and the terminal is selectively redirected to a proper target system, a target frequency point or a target cell.
4. The method of claim 1, wherein when the UE initiates a service, and detects a random access procedure performed by the UE, triggering the redirection procedure comprises:
after completing random access and establishing a corresponding bearer, the base station performs deep packet inspection on a data packet belonging to the bearer;
if the first type of message is detected in the bearer data packet, the base station detects a current preset condition, and if the preset condition exceeds a threshold value, a redirection process is triggered.
5. A base station for implementing service initialization redirection, comprising:
a detecting unit, configured to detect a random access procedure executed by a terminal and trigger a redirection procedure when a service is initialized by a terminal UE, where a connection establishment cause field in a random access signaling sent in the random access procedure of the terminal is detected when the service is initialized by the terminal UE; if the connection establishment reason field is detected to be that the calling terminal initializes a service, detecting a current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process;
and the redirection unit is used for redirecting the terminal to other target systems, target frequency points or target cells in the redirection process, and then the terminal needs to reinitialize the service in the other target systems, the target frequency points or the target cells.
6. A base station for implementing service initialization redirection comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor; a method for implementing service initialization redirection according to any of claims 1-4, when the processor executes the program.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for carrying out a service initialisation redirection according to any one of claims 1 to 4.
8. A method for implementing service initialization switching is characterized in that the method is applied to a base station and comprises the following steps:
after completing random access and establishing a corresponding bearer, the base station performs deep packet inspection on the bearer data packet; when a service is initialized by a terminal, detecting a connection establishment reason field in a random access signaling sent in the random access process of the terminal; if the connection establishment reason field is detected to be that the calling terminal initializes a service, detecting a current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process;
if the first type of message of the calling terminal is detected in the bearer data packet, detecting the current preset condition, and if the preset condition exceeds a threshold value, triggering a switching process;
after the switching process is completed, the terminal continues to perform the corresponding service in the target cell.
9. The method of claim 8, wherein detecting a current preset condition comprises: detecting a preset condition of a base station, and detecting the preset condition of an adjacent base station by carrying out information interaction with the adjacent base station; the preset conditions include: at least one of radio environment quality, interference, loading conditions and service quality.
10. The method of claim 8, wherein the handover procedure specifically comprises:
carrying out context transmission with a target base station, reserving resources by the target base station, sending a switching command to the terminal by the base station, wherein the switching command indicates other systems or other frequency points or other cells to which the terminal is switched; and updating the path information of the signaling plane and the media plane with the core network to ensure that the subsequent data can be correctly sent to the target base station.
11. A base station for implementing service initiation handover, the base station comprising:
a handover detection unit, configured to perform deep packet detection on the bearer data packet by the base station after completing the random access and establishing a corresponding bearer; when a service is initialized by a terminal, detecting a connection establishment reason field in a random access signaling sent in the random access process of the terminal; if the connection establishment reason field is detected to be that the calling terminal initializes a service, detecting a current preset condition, and if the preset condition exceeds a threshold value, triggering the redirection process;
the switching unit is used for detecting the current preset condition if the first type of message of the calling terminal is detected in the bearer data packet, and triggering a switching process if the preset condition exceeds a threshold value;
after the switching process is completed, the terminal continues to perform the voice service in the target cell.
12. A base station for realizing service initialization switching comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; a method for performing service initiation handover as claimed in any one of claims 8-10, when the program is executed by the processor.
13. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for carrying out a service initiation handover according to any one of claims 8 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506177.2A CN109151941B (en) | 2017-06-28 | 2017-06-28 | Method and base station for implementing service initialization redirection and switching |
| PCT/CN2018/091536 WO2019001293A1 (en) | 2017-06-28 | 2018-06-15 | Method and base station for implementing service initialisation redirection and switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506177.2A CN109151941B (en) | 2017-06-28 | 2017-06-28 | Method and base station for implementing service initialization redirection and switching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109151941A CN109151941A (en) | 2019-01-04 |
| CN109151941B true CN109151941B (en) | 2020-07-07 |
Family
ID=64741073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710506177.2A Active CN109151941B (en) | 2017-06-28 | 2017-06-28 | Method and base station for implementing service initialization redirection and switching |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109151941B (en) |
| WO (1) | WO2019001293A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037930B (en) * | 2019-12-09 | 2024-03-29 | 中兴通讯股份有限公司 | Method, device, terminal and readable storage medium for processing abnormality of radio frequency device |
| CN113038546A (en) * | 2019-12-24 | 2021-06-25 | 中国移动通信集团浙江有限公司 | Cell switching method and device and computing equipment |
| CN114501568B (en) * | 2022-04-08 | 2022-08-09 | 荣耀终端有限公司 | Calling method, calling device and user equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494913B (en) * | 2008-01-25 | 2011-08-10 | 中兴通讯股份有限公司 | Accidental access method for bimodule mobile phone when network being in congestion |
| CN103167564A (en) * | 2011-12-09 | 2013-06-19 | 中兴通讯股份有限公司 | Long term evolution (LTE) system terminal circuit domain service back access method and corresponding network element |
| CN103391597A (en) * | 2012-05-08 | 2013-11-13 | 京信通信系统（中国）有限公司 | Access control method, access control device and access control base station of multi-mode mobile terminal |
| WO2014210253A3 (en) * | 2013-06-28 | 2015-03-05 | Qualcomm Incorporated | Improving user experience of a voice call associated with a device |
| WO2015186331A1 (en) * | 2014-06-05 | 2015-12-10 | 日本電気株式会社 | Gateway device, femtocell-use base station, communication system, communication method, and storage medium |
| WO2016153026A1 (en) * | 2015-03-25 | 2016-09-29 | シャープ株式会社 | Terminal device, base station device, communication method, and integrated circuit |
| WO2017079942A1 (en) * | 2015-11-12 | 2017-05-18 | 华为技术有限公司 | Method of performing process for voice service terminal, and device utilizing same, and communication system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104284379A (en) * | 2013-07-08 | 2015-01-14 | 华为技术有限公司 | Circuit domain fallback method and user equipment |
| US10039019B2 (en) * | 2014-07-24 | 2018-07-31 | T-Mobile Usa, Inc. | Telecommunications network non-establishment response |
| CN106550158A (en) * | 2015-09-18 | 2017-03-29 | 中兴通讯股份有限公司 | Voice call method and device |
-
2017
- 2017-06-28 CN CN201710506177.2A patent/CN109151941B/en active Active
-
2018
- 2018-06-15 WO PCT/CN2018/091536 patent/WO2019001293A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494913B (en) * | 2008-01-25 | 2011-08-10 | 中兴通讯股份有限公司 | Accidental access method for bimodule mobile phone when network being in congestion |
| CN103167564A (en) * | 2011-12-09 | 2013-06-19 | 中兴通讯股份有限公司 | Long term evolution (LTE) system terminal circuit domain service back access method and corresponding network element |
| CN103391597A (en) * | 2012-05-08 | 2013-11-13 | 京信通信系统（中国）有限公司 | Access control method, access control device and access control base station of multi-mode mobile terminal |
| WO2014210253A3 (en) * | 2013-06-28 | 2015-03-05 | Qualcomm Incorporated | Improving user experience of a voice call associated with a device |
| WO2015186331A1 (en) * | 2014-06-05 | 2015-12-10 | 日本電気株式会社 | Gateway device, femtocell-use base station, communication system, communication method, and storage medium |
| WO2016153026A1 (en) * | 2015-03-25 | 2016-09-29 | シャープ株式会社 | Terminal device, base station device, communication method, and integrated circuit |
| WO2017079942A1 (en) * | 2015-11-12 | 2017-05-18 | 华为技术有限公司 | Method of performing process for voice service terminal, and device utilizing same, and communication system |
Non-Patent Citations (2)
| Title |
|---|
| "Inter-frequency Intra-LTE redirection with VoLTE call";NSN;《3GPP TSG-RAN WG3 Meeting #83bis》;20140404;全文 * |
| "Redirection Enhancement to HRPD";China Telecom, ZTE Corporation, Huawei;《3GPP TSG-RAN2#79bis meeting》;20121012;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019001293A1 (en) | 2019-01-03 |
| CN109151941A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11917484B2 (en) | Content-aware inter-RAT RAB steering | |
| KR102026293B1 (en) | Measurement Control for UE Relay Selection in ProSe-based UE-to-Network Relay | |
| JP6474891B2 (en) | Service specific air interface selection | |
| CN107211318B (en) | Communication system | |
| US9100883B2 (en) | Methods and systems for wireless communication in heterogeneous networks | |
| JP5283748B2 (en) | Control apparatus, radio network control apparatus, base station apparatus, and communication control method | |
| US10455466B2 (en) | Handover method and device in ultra-dense network | |
| CN110431880B (en) | Communication system | |
| EP2763461A1 (en) | Radio resource control connection reestablishment method, user equipment and enb | |
| US20140211762A1 (en) | Handover mechanism in cellular networks | |
| CN112042226B (en) | Base station switching method, equipment and storage medium | |
| CN109392030B (en) | Method for switching between base stations and wireless network | |
| CN109151941B (en) | Method and base station for implementing service initialization redirection and switching | |
| EP3404961B1 (en) | Method and device for handover of wireless communications in heterogeneous networks | |
| US20230231890A1 (en) | Seamless voice call initiation | |
| US8503939B2 (en) | Method for handling communication between a user equipment and a radio network controller and program for controlling a radio network controller | |
| CN109714799B (en) | User terminal, base station, network switching method and system | |
| CN108377521B (en) | Cell switching method, cell redirection method and base station | |
| US10070351B1 (en) | Method and system for assigning a contention-free access resource | |
| CN107548166B (en) | Method for configuring multi-connection signaling, main base station, user equipment and communication system | |
| CN108617016B (en) | Carrier aggregation radio resource control method and system | |
| CN112868253B (en) | Condition-triggered configuration method and related product | |
| US10542471B1 (en) | Method and system for releasing at least one resource allocated to a user equipment device | |
| WO2023108354A1 (en) | Wireless communication method, and terminal device and network device | |
| CN115811766A (en) | Cell switching method and communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |