CN110972219A

CN110972219A - Information processing method, terminal device, network device, and storage medium

Info

Publication number: CN110972219A
Application number: CN201911185524.1A
Authority: CN
Inventors: 张立海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-04-07
Also published as: WO2021104023A1

Abstract

The invention discloses an information processing method, a terminal device, a network device and a storage medium. The method comprises the following steps: when the terminal equipment is positioned in a first cell in a first type communication network and voice fall occurs to the terminal equipment, determining a second cell to be accessed from at least one second type cell in a second type communication network according to a frequency point mapping relation; the first type communication network is different from a network node which provides service of the second type communication network, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell; the first type of cell comprises the first cell; and the terminal equipment is switched from the first cell to the second cell for data transmission.

Description

Information processing method, terminal device, network device, and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information processing method, a terminal device, a network device, and a storage medium.

Background

The fifth Generation mobile communication technology (5G, 5th Generation mobile networks or 5th Generation wireless systems, 5th-Generation) heterogeneous network roaming is an effective way for reducing the cost and ensuring the coverage of the 5G Generation to reduce the network repeated construction. Meanwhile, the 5G inter-network roaming also provides new technical requirements for the network architecture of the operator, which requires more converged interfaces between network elements, even new technical requirements beyond the requirements of the 3GPP standard.

At the initial stage of network deployment in a 5G network, a voice scheme is mostly implemented in a fallback manner, that is, EPS (evolved packet System) fallback. Especially, the EPS fallback in the heterogeneous roaming scenario needs to preferentially fallback to the 4G network of the Home network. Due to cost consideration and information confidentiality requirements among different operators, some information sharing among the operators cannot be fully guaranteed, so that when the terminal equipment performs the EPS fallback again, the problem that the terminal equipment cannot access the 4G network as soon as possible occurs, and the service quality of the whole communication system is affected.

Disclosure of Invention

In view of the above, embodiments of the present invention provide an information processing method, a terminal device, a network device, and a storage medium, so as to at least solve the above problems in the prior art.

The technical scheme of the embodiment of the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides an information processing method, including:

when the terminal equipment is positioned in a first cell in a first type communication network and voice fall occurs to the terminal equipment, determining a second cell to be accessed from at least one second type cell in a second type communication network according to a frequency point mapping relation; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the system comprises a first type cell in a first type communication network and at least one second type cell of a second type communication network having a neighboring cell coverage relation with the first type cell; the first type of cell comprises the first cell;

and the terminal equipment is switched from the first cell to the second cell for data transmission.

In a second aspect, an embodiment of the present invention provides an information processing method, where the method includes:

when the terminal equipment in a first cell in the coverage area of the network equipment generates voice fall back, the network equipment determines a second cell to be accessed from a second cell having a neighboring cell coverage relation with the first cell according to a frequency point mapping relation; the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell;

the network equipment sends the related information of the second cell to the terminal equipment; the related information of the second cell is used for the terminal equipment to be capable of being switched from the first cell to the second cell.

In a third aspect, an embodiment of the present invention provides an information processing method, where the method includes:

when the terminal equipment is positioned in a first cell and voice fall occurs, receiving related information of a second cell sent by network equipment;

the terminal equipment determines the second cell based on the related information of the second cell and is switched to the second cell by the first cell;

the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell.

In a fourth aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes:

the first processing unit is used for determining a second cell to be accessed from at least one second type cell in a second type communication network according to the frequency point mapping relation when the first cell is positioned and the voice falls back; the first type communication network is different from a network node which provides service of the second type communication network, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell; the first type of cell comprises the first cell;

and the first communication unit is used for switching the first cell to the second cell for data transmission.

In a fifth aspect, an embodiment of the present invention provides a network device, where the network device includes:

the second processing unit is used for determining a second cell to be accessed from a second cell having a neighboring cell coverage relation with the first cell according to the frequency point mapping relation when the terminal equipment in the first cell in the coverage range has voice fall back; the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell;

a second communication unit, configured to send the relevant information of the second cell to the terminal device; the related information of the second cell is used for the terminal equipment to be capable of being switched from the first cell to the second cell.

In a sixth aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes:

the first processing unit is used for receiving the relevant information of the second cell sent by the network equipment when the first cell is located and the voice fallback occurs;

a first communication unit, configured to determine the second cell based on the related information of the second cell, and switch from a first cell to the second cell; the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell.

In a seventh aspect, an embodiment of the present invention provides a terminal device, including: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is configured to execute the steps of the information processing method when the computer program is executed.

In an eighth aspect, an embodiment of the present invention provides a network device, including: a processor and a memory for storing a computer program capable of running on the processor,

In a ninth aspect, an embodiment of the present invention provides a storage medium, on which a computer program is stored, wherein the computer program is configured to, when executed by a processor, implement the steps of the foregoing method.

In the embodiment of the invention, when the terminal equipment generates the voice fall-back in the first cell of the first type communication network, the corresponding second cell of the second type network is determined based on the frequency point mapping relation, and then the terminal equipment is accessed to the second cell; the first type communication network and the second type communication network are different networks, the first type communication network is newer than the second type communication network, and the second type communication network can be a home network of the terminal device. Therefore, when the terminal equipment executes voice fallback, the time delay problem caused by re-accessing the sweep frequency to the home network is avoided, the switching speed of voice fallback processing is improved, the processing efficiency of the communication network is improved, and the service quality of the communication network is ensured.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a first flowchart illustrating an information processing method according to an embodiment of the present invention;

fig. 3 is a schematic view of a scenario provided by an embodiment of the present invention;

FIG. 4 is a first process flow diagram according to an embodiment of the present invention;

fig. 5 is a schematic flow chart of an information processing method according to an embodiment of the present invention;

fig. 6 is a schematic flow chart of an information processing method according to an embodiment of the present invention;

FIG. 7 is a second flowchart of a process according to an embodiment of the present invention;

FIG. 8 is a block diagram of an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a network device structure according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a hardware composition structure of a terminal device according to an embodiment of the present invention.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

The technical means described in the embodiments of the present invention may be arbitrarily combined without conflict.

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long term evolution (Long term evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

For example, a communication system 100 applied in the embodiment of the present application may be as shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Network device (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal".

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing 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.

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

In the related art, when the terminal device is in the 5G cell of the heterogeneous network roaming, and the voice falls back, if the terminal device re-searches the 4G cell and then accesses the 4G cell, the problem of long access delay occurs, and the communication quality and the communication efficiency cannot be guaranteed.

Therefore, in the scheme of the inter-network roaming provided by the application, a frequency point mapping relationship is introduced, and a first type cell in a first type communication network and a second type cell in a second type communication network having a neighboring cell coverage relationship with the first type cell are arranged in the frequency point mapping relationship; the first type of communication network is a 5G network, and the second type of communication network is a 4G network. Through the frequency point mapping relationship, the terminal equipment can quickly determine the currently used service cell, namely the 4G cell adjacent to the 5G cell or having the coverage relationship, and then directly switch to the 4G cell. Therefore, the switching time delay is reduced, the cell switching efficiency under the scene of voice fallback is improved, and the service quality and the processing efficiency of a communication system are ensured.

In order to achieve the above object, the present embodiment provides the following two embodiments:

in one embodiment, an information processing method is provided, as shown in fig. 2, including:

step 21: when the terminal equipment is positioned in a first cell in a first type communication network and voice fall occurs to the terminal equipment, determining a second cell to be accessed from at least one second type cell in a second type communication network according to a frequency point mapping relation; the first type communication network is different from a network node which provides service of the second type communication network, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell; the first type of cell comprises the first cell;

step 22: and the terminal equipment is switched from the first cell to the second cell for data transmission.

The coverage area of the first type communication network is smaller than that of the second type communication network, specifically, the first type communication network is a 5G network, and the second type communication network is a 4G network.

In addition, the first type communication network and the second type communication network have different network nodes for providing services, and specifically, the operator of the first type communication network may be different from the operator of the second type communication network.

An applicable scenario of the scheme provided in this embodiment is that, when the terminal device is in the heterogeneous network roaming condition, the terminal device is in a first cell (which may be referred to as a heterogeneous network roaming 5G cell) of a first type communication network provided by an operator different from a home network, and in a current 5G network deployment primary stage, because a fallback manner is usually adopted for voice processing, for example, an EPS fallback manner is adopted, it is necessary to drop the communication of the terminal device back to a 4G cell provided by the home network, that is, a second cell.

The specific implementation mode is as follows: and the terminal equipment determines the second cell to be accessed through the frequency point mapping relation.

The frequency point mapping relationship may be preset, or may be sent to the terminal device for the network device. And when the frequency point mapping relation is preset, the frequency point mapping relation can be acquired by the terminal equipment.

The specific acquisition mode can be as follows: and the terminal equipment establishes a different network roaming database, and stores the first type cells of at least one first type communication network and at least one second type cell of a second type communication network having a neighboring cell coverage relation with each first type cell in the at least one first type cell in the different network roaming database as the frequency point mapping relation.

In one example, since the location of the terminal device is mobile, this means that the terminal device may be in different cells for different periods of time; the terminal equipment stores the identifications and frequency points of all cells where the terminal equipment is in history to a different network roaming database. Determining at least one first type cell of a first type communication network from all cells; respectively determining at least one second type cell of a second type communication network of which each first type cell has a neighboring cell coverage relation; storing the first type of cell and one or more second type of cells of a second type of communication network with a neighboring cell coverage relation in a frequency point mapping relation in a correlated manner; and then storing the frequency point mapping relation in a different network roaming database.

Since the first type cell is obtained by the terminal device in the using process, the first type cell can be regarded as a heterogeneous roaming cell commonly used by the terminal device. That is, a database of the common 5G heterogeneous network roaming is stored, and a mapping relation of the neighboring cell coverage of the heterogeneous network roaming 5G cell and the home 4G cell is stored. It should be noted that, here, the number of the first type cells in the frequency point mapping relationship included in the heterogeneous network roaming database maintained by the terminal device may be limited, for example, the number may be set to be not greater than a preset value (for example, 100).

For example, the terminal device covers the mobility scenario through a self-learning mechanism, and if there are multiple mobility scenarios, the most common 5G roaming is used as a common cell (or may be referred to as a first type cell of a common first type communication network), and the number of the common cells may be determined during engineering implementation, for example, 100 different network roaming cells are maintained. In the frequency point mapping relationship, the common cells, that is, the first type cell of the common first type communication network and at least one second type cell of the corresponding second type communication network, are mainly maintained.

The first-class cell and the second-class cell corresponding to the first-class cell have a neighboring cell coverage relationship, which is a so-called neighboring cell coverage relationship, and the first-class cell is considered to be in a coverage area of the second-class cell, or the first-class cell is at a coverage area edge of the second-class cell.

Further, when one second cell having a neighboring cell coverage relation with the first cell is determined based on the frequency point mapping relation, the second cell is used as the second cell;

and when at least two second-type cells having a neighboring cell coverage relation with the first cell are determined based on the frequency point mapping relation, selecting one of the at least two second-type cells as the second cell.

The selecting one of the at least two second-type cells as the second cell may be selecting one of the at least two second-type cells as the second cell according to signal quality, for example, selecting the one with the strongest signal quality as the second cell. The strength of the reference signal may be represented by one or more parameters such as RSRP, SNR, etc., and is not exhaustive.

Here, since the present embodiment preferably addresses a scenario in which the first-type cell is a 5G cell and the second-type cell is a 4G cell, regarding the coverage relationship of the neighboring cell, it is necessary to describe based on the coverage characteristics between the 5G cell and the 4G cell: the coverage of the 5G cell is smaller than that of the 4G cell. In general, one or more 5G cells may be covered by one 4G cell. For example, if the boundary crosses, a case may occur where one 5G cell corresponds to two or more 4G cells, and the 4G cell with the strongest signal may be used as the priority access cell.

For illustration, see fig. 3: the 4G cell-1 can be a home 4G cell of the terminal equipment; when the terminal equipment is in the 5G cell-1 of the heterogeneous network roaming, if the voice fallback (EPS fallback) occurs, the second cell having the coverage relation with the 5G cell-1 can be determined to be the 4G cell-1 according to the frequency point mapping relation, and therefore the terminal equipment can be switched to the 4G cell-1.

Or, also based on fig. 3, when the terminal device is in the 5G cell-2 in the heterogeneous network roaming, if a voice fallback (EPS fallback) occurs, it may be determined that the second cells having the neighboring cell coverage relation with the 5G cell-2 are the 4G cell-1 and the 4G cell-2 according to the frequency point mapping relation, so that the terminal device may select one cell with the best signal quality from the two 4G cells to access the second cell, and assuming that the signal quality of the 4G cell-2 is the best, the 4G cell-2 is used as the second cell, and the terminal device is switched from the 5G cell-2 to the 4G cell-2.

Further, based on the description of the foregoing embodiment, when the terminal device is switched from the second cell to the first cell, the voice communication processing is performed through the second cell, and the following steps are not repeated.

A specific example of this embodiment can be seen in fig. 4, specifically: when a terminal device is in a 5G cell (namely a first cell) roaming in a different network, a network device (gNB base station) of the first cell receives a voice call corresponding to the terminal device; and sending an RRC release instruction to the terminal equipment, namely the terminal equipment generates voice fall-back at the moment, wherein the RRC release instruction does not carry a frequency point of a second cell, so that the terminal equipment can select the second cell (home network 4G cell) which has an adjacent coverage relation with the first cell by adopting a self-learning frequency point mapping relation, switch from the first cell to the second cell, and complete voice communication processing through the second cell.

In one embodiment, an information processing method is provided, as shown in fig. 5, including:

step 31: when the terminal equipment in a first cell in the coverage area of the network equipment generates voice fall back, the network equipment determines a second cell to be accessed from a second cell having a neighboring cell coverage relation with the first cell according to a frequency point mapping relation; the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell;

step 32: the network equipment sends the related information of the second cell to the terminal equipment; the related information of the second cell is used for the terminal equipment to be capable of being switched from the first cell to the second cell.

Accordingly, an information processing method, as shown in fig. 6, includes:

step 41: when the terminal equipment is positioned in a first cell and voice fall occurs, receiving related information of a second cell sent by network equipment;

step 42: the terminal equipment determines the second cell based on the related information of the second cell and is switched to the second cell by the first cell; the first cell is a cell in a first-type communication system, the second cell is a cell in a second-type communication network, and the first-type communication network is different from a network node of the second-type communication network, which provides service; the second type communication network is a home network of the terminal equipment; the related information of the second cell is determined by the network equipment based on a frequency point mapping relation, wherein the frequency point mapping relation comprises: a first type cell in the first type communication network and a second type cell in a second type communication network having a neighboring cell coverage relation with the first type cell; the first type of cells includes the first cell.

Wherein the coverage area of the first type of communication network is smaller than the coverage area of the second type of communication network. Specifically, the first type of communication network is a 5G network, and the second type of communication network is a 4G network.

The first type of communication network and the second type of communication network may be different in network node providing service, and specifically, an operator of the first type of communication network may be different from an operator of the second type of communication network.

The network device is a base station in a first type communication network, and is preferably a gNB in a 5G network.

In the solution provided in this embodiment, when the terminal device is in the heterogeneous roaming condition, the terminal device is in a first cell (which may be referred to as a heterogeneous roaming 5G cell) of a first type communication network provided by an operator different from the home network, and in a current 5G network deployment initial stage, because a fallback manner is usually adopted for voice processing, such as EPS fallback, it is necessary to drop the communication of the terminal device back to a 4G cell provided by the home network, that is, a second cell.

The specific implementation mode is as follows: the terminal equipment completes the switching through an instruction sent by the network equipment; the network device may map with a pre-stored frequency point.

In this embodiment, the difference from the foregoing embodiment is that the frequency point mapping relationship is established by a network device, rather than by a terminal device.

Specifically, a Test terminal (Test UE) is added, which is used for learning the neighboring cell relation of the home location and reporting the neighboring cell relation to the 5G base station of the roaming location, that is, the network device.

The test terminal can set a certain moving range, and because the test terminal mainly reports the corresponding neighboring cell coverage relation to the home 4G network, the moving range of the test terminal can be set in the cell range of the 4G network, the inter-network roaming 5G cell is detected in the range, then the neighboring coverage relation between the 4G cell and the 5G cell is established, the frequency point mapping relation is established, and the frequency point mapping relation is reported to the network equipment (gNB) of the 5G cell.

The network equipment receives the frequency point mapping relation of a first type cell containing at least one first type communication network and at least one second type cell of a second type communication network having a neighboring cell coverage relation with each first type cell in the at least one first type cell, and stores the frequency point mapping relation in a different network roaming database.

Further, the mode of acquiring the content reported by the test terminal by the network device may be acquiring through an application layer, that is, the test terminal reports the frequency point mapping relationship to the network device through the application layer.

Or, the test terminal is only responsible for acquiring the relationship between the first type cell and the second type cell having the coverage relationship with the first type cell, and then reporting the relationship to the network equipment corresponding to the first type cell through the application layer, and the network equipment adds the first type cell and the second type cell to the frequency point mapping relationship and stores the relationship in the different network roaming database.

Further, when the network device determines that one second cell having a neighboring cell coverage relationship with the first cell is a second cell based on the frequency point mapping relationship, the second cell is used as the second cell;

and when the network equipment determines that at least two second-class cells having a neighboring cell coverage relation with the first cell are based on the frequency point mapping relation, selecting one of the at least two second-class cells as the second cell.

For illustration, see fig. 3: the 4G cell-1 can be a home 4G cell of the terminal equipment; when the terminal equipment is in a 5G cell-1 of the heterogeneous network roaming, if voice fallback (EPS fallback) occurs, a second cell having a neighboring cell coverage relation with the 5G cell-1 can be determined to be a 4G cell-1 according to a frequency point mapping relation, and the network equipment can indicate the frequency point of the second cell to the terminal equipment through an RRC release signaling, so that the terminal equipment scans the frequency point of the second cell indicated by the RRC release signaling and can be switched to the 4G cell-1. It should be understood that, in addition to the frequency point of the second cell, the RRC release signaling may also include other contents, such as an Identifier (ID) of the second cell, which is not exhaustive in this embodiment.

Or, also based on fig. 3, when the terminal device is in the 5G cell-2 in the heterogeneous network roaming, if a voice fallback (EPS fallback) occurs, it may be determined, according to the frequency point mapping relationship, that the second cell having the neighboring cell coverage relationship with the 5G cell-2 is the 4G cell-1 and the 4G cell-2, so that one cell with the best signal quality may be selected from the two 4G cells as the second cell, and if the signal quality of the 4G cell-2 is the best, the 4G cell-2 is taken as the second cell, and the network device may indicate the frequency point of the second cell to the terminal device through the RRC release signaling, so that the terminal device performs scanning according to the frequency point of the second cell indicated by the RRC release signaling, and may then switch to the 4G cell-2. It should be understood that, in addition to the frequency point of the second cell, the RRC release signaling may also include other contents, such as an Identifier (ID) of the second cell, which is not exhaustive in this embodiment.

A specific example of this embodiment can be seen in fig. 7, specifically: when a terminal device is in a 5G cell (namely a first cell) roaming in a different network, a network device (gNB base station) of the first cell receives a voice call corresponding to the terminal device; and sending an RRC release instruction to the terminal equipment, namely the terminal equipment generates voice fall-back at the moment, wherein the RRC release instruction carries the frequency point of the second cell, so that the terminal equipment can determine the second cell by adopting the indication of the RRC release signaling, then the terminal equipment is switched from the first cell to the second cell, and the voice communication processing is completed through the second cell.

As an example of the architecture of this embodiment, referring to fig. 8, a gNB is a network device, that is, a base station of a heterogeneous roaming 5G cell, and an NB may be a base station of a home 4G cell of a terminal device; the gNB can test the mapping relation of the attribution 4G cell of the heterogeneous network roaming 5G cell with the neighboring cell coverage relation, and then the reported frequency point mapping relation is stored in a database (heterogeneous network roaming database); the terminal device may obtain the relevant information of the corresponding second cell, that is, the relevant information such as the frequency point of the 4G cell, through the RRC release signaling issued by the gNB, and may switch to the NB of the second cell to perform subsequent processing such as transmission interaction of voice communication data.

In addition, there may also be a processing mode, that is, when the terminal device has a voice fallback condition, the network device may directly send the frequency point mapping relationship to the terminal device, and then the terminal device may perform subsequent processing according to the scheme provided in the foregoing first embodiment, which is not described herein again. That is to say, the network device establishes and maintains the frequency point mapping relationship, and the network device issues the frequency point mapping relationship to the terminal device only when the terminal device needs the frequency point mapping relationship, so that the situation that the terminal device collects the frequency point by itself is reduced; and the time delay caused by the processing that the terminal equipment needs to perform frequency sweeping by itself and then select the second cell and switch the frequency sweeping is avoided under the condition that the terminal equipment enters the first cell for the first time and the frequency point mapping relation containing the first cell is not established in advance.

In one embodiment, there is provided a terminal device, as shown in fig. 9, including:

a first processing unit 51, configured to locate in a first cell, and determine a second cell to be accessed from at least one second-type cell in a second-type communication network according to a frequency point mapping relationship when a voice fallback occurs; the first type communication network is different from a network node which provides service of the second type communication network, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell; the first type of cell comprises the first cell;

a first communication unit 52, configured to switch from the first cell to the second cell for data transmission.

The first type communication network and the second type communication network are different in network node for providing service, and it can be understood that an operator of the first type communication network is different from an operator of the second type communication network.

The specific implementation mode is as follows: the first processing unit 51 of the terminal device determines the second cell to be accessed through the frequency point mapping relationship.

The specific acquisition mode can be as follows: the first processing unit 51 of the terminal device establishes a heterogeneous network roaming database, and stores a first type cell of at least one first type communication network and at least one second type cell of a second type communication network having a neighboring cell coverage relation with each first type cell in the at least one first type cell as the frequency point mapping relation in the heterogeneous network roaming database.

Further, when determining that one second-class cell having a neighboring cell coverage relationship with the first cell is a second-class cell based on the frequency point mapping relationship, the first processing unit 51 takes the second-class cell as the second cell;

In one embodiment, a network device is provided, as shown in fig. 10, including:

a second processing unit 61, configured to determine, when a voice fallback occurs to a terminal device in a first cell in a coverage area, a second cell to be accessed from a second type of cell having a coverage relation with a neighboring cell with the first cell according to a frequency point mapping relation; the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is different from a network node of the second type communication network, which provides service, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell;

a second communication unit 62, configured to send information related to the second cell to the terminal device; the related information of the second cell is used for the terminal equipment to be capable of being switched from the first cell to the second cell.

Correspondingly, the terminal equipment comprises:

a first communication unit, configured to determine the second cell based on the related information of the second cell, and switch from a first cell to the second cell; the first cell is a first type cell in a first type communication network, and the second type cell is a cell in a second type communication network; the first type communication network is newer than a second type communication network, the first type communication network is different from a network node which provides service of the second type communication network, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell.

The network equipment receives the frequency point mapping relation of a first type cell containing at least one first type communication network and at least one second type cell of a second type communication network with a neighboring cell coverage relation with each first type cell in the at least one first type cell from a test terminal through a second communication unit, and a second processing unit stores the frequency point mapping relation in a different network roaming database.

Further, the manner in which the second communication unit of the network device obtains the content reported by the test terminal may be obtained by an application layer.

Further, when the second processing unit of the network device determines that one second cell having a neighboring cell coverage relationship with the first cell is a second cell based on the frequency point mapping relationship, the second cell is used as the second cell;

and when the second processing unit of the network equipment determines that at least two second-class cells having a neighboring cell coverage relation with the first cell are present based on the frequency point mapping relation, selecting one of the at least two second-class cells as the second cell.

Therefore, by adopting the scheme, when the terminal equipment generates the voice fallback in the first cell of the first-class communication network, the corresponding second cell of the second-class network is determined based on the frequency point mapping relation, and then the terminal equipment is accessed to the second cell; the first type communication network and the second type communication network are different networks, the first type communication network is newer than the second type communication network, and the second type communication network can be a home network of the terminal device. Therefore, when the terminal equipment executes voice fallback, the time delay problem caused by re-accessing the sweep frequency to the home network is avoided, the switching speed of voice fallback processing is improved, the processing efficiency of the communication network is improved, and the service quality of the communication network is ensured.

Based on the hardware implementation of the program module, and in order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a schematic diagram of a hardware composition structure of a terminal device or a network device, as shown in fig. 11, where the schematic diagram may include:

a communication interface 91 capable of information interaction with other devices;

and the processor 92 is connected with the communication interface 91 to realize information interaction with other equipment, and is used for executing the method provided by one or more technical schemes of the information processing device when running a computer program. And the computer program is stored on the memory 93.

Of course, in practice, the various components of the information processing apparatus are coupled together by bus system 94.

It will be appreciated that the bus system 94 is used to enable communications among the components. The bus system 94 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 94 in FIG. 11.

The memory 93 in the embodiment of the present invention is used to store various types of data to support the operation of the information processing apparatus. Examples of such data include: any computer program for operating on an information processing apparatus.

It will be appreciated that the memory 93 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage.

Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data rate Synchronous Dynamic Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous link Dynamic Random Access Memory (SLDRAM, Synchronous Dynamic Random Access Memory (DRAM), Direct Memory (DRM, Random Access Memory). The memory 92 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The method disclosed in the above embodiments of the present invention may be applied to the processor 92, or implemented by the processor 92. The processor 92 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 92. The processor 92 described above may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 92 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 93, and the processor 92 reads the program in the memory 93 and performs the steps of the aforementioned method in conjunction with its hardware.

Optionally, when the processor 92 executes the program, the corresponding flow implemented by the information processing apparatus in each method according to the embodiment of the present invention is implemented, and for brevity, no further description is given here.

In an exemplary embodiment, the present invention further provides a storage medium, i.e. a computer storage medium, specifically a computer readable storage medium, for example, including a memory 93 storing a computer program, which can be executed by a processor 92 of a terminal to implement the steps of the foregoing method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, terminal and method may be implemented in other manners. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An information processing method characterized by comprising:

when the terminal equipment is positioned in a first cell in a first type communication network and voice fall occurs to the terminal equipment, determining a second cell to be accessed from at least one second type cell in a second type communication network according to a frequency point mapping relation; the first type communication network is different from a network node which provides service of the second type communication network, and the second type communication network is a home network of the terminal equipment; the frequency point mapping relationship comprises: the first-class cell in the first-class communication network and at least one second-class cell of a second-class communication network having a neighboring cell coverage relation with the first-class cell; the first type of cell comprises the first cell;

2. The method of claim 1, wherein the first type of communication network is a fifth generation mobile communication technology 5G network, and wherein the second type of communication network is a fourth generation mobile communication technology 4G network.

3. The method of claim 1, further comprising:

when one second type cell with the coverage relation of the neighboring cell with the first cell is determined based on the frequency point mapping relation, taking the second type cell as the second cell;

4. The method of claim 1, further comprising:

and the terminal equipment establishes a different network roaming database, and stores the first type cells of at least one first type communication network and at least one second type cell of a second type communication network having a neighboring cell coverage relation with each first type cell in the at least one first type cell in the different network roaming database as the frequency point mapping relation.

5. An information processing method, characterized in that the method comprises:

6. The method of claim 5,

the first type of communication network is a 5G network, and the second type of communication network is a 4G network.

7. The method of claim 5, wherein the information related to the second cell comprises: frequency points of the second cell.

8. The method of claim 5, further comprising:

when the network equipment determines that one second cell with the neighboring cell coverage relation with the first cell is the same based on the frequency point mapping relation, the second cell is taken as the second cell;

9. The method of claim 5, further comprising:

10. The method of claim 5, wherein the information related to the second cell is carried by RRC release signaling.

11. An information processing method, characterized in that the method comprises:

12. The method of claim 11,

13. The method of claim 11, wherein the information related to the second cell comprises: frequency points of the second cell.

14. The method of claim 11, wherein the information related to the second cell is carried by RRC release signaling.

15. A terminal device, characterized in that the terminal device comprises:

16. A network device, characterized in that the network device comprises:

17. A terminal device, characterized in that the terminal device comprises:

18. A terminal device, comprising: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is adapted to perform the steps of the method of any one of claims 1-4 and 11-14 when running the computer program.

19. A network device, comprising: a processor and a memory for storing a computer program capable of running on the processor,

wherein the processor is adapted to perform the steps of the method of any one of claims 5 to 10 when running the computer program.

20. A storage medium having a computer program stored thereon, the computer program, when being executed by a processor, realizing the steps of the method of any one of claims 1 to 14.