Voice fallback processing method, device and terminal

Abstract

The present invention provides a method, device and terminal for processing voice fallback, the method comprising: when a first terminal falls back from a first wireless communication technology network to a second wireless communication technology network, the first terminal sends a first update response message or a second update message to the second terminal; wherein the first update response message or the second update message comprises: a resource reservation status after falling back to the second wireless communication technology network; thereby ensuring that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, device and terminal for processing voice fallback. Background Art

[0002] Currently, a solution for falling back from 5G to 4G network (EPS Fallback) is defined. The terminal is turned on and resides in 5G, establishes a voice session through the 5G core network, registers in the IMS (IP Multimedia Subsystem) network and initiates a voice call; the 5G wireless network rejects the request to establish a voice bearer, and simultaneously initiates a 5G to 4G PSHO (Packet Service Handover) process to switch the call to LTE (Long Term Evolution), establishes a voice bearer on EPC (Evolved Packet Core) and completes subsequent voice call connection, thereby falling the call from 5G to VoLTE (Voice over Long-Term Evolution).

[0003] When deployed on the existing network, the EPS Fallback process involves both the IMS process and the 5G to 4G handover process. If there is a problem with the timing of the IMS process and the handover process, call problems will occur:

[0004] For example, the network transmits 183 signaling to the calling terminal, and the calling terminal sends an update to confirm the media resource reservation status of the called terminal. When the called terminal receives the update message, the called terminal is still in the 5G network and has no media resources reserved, so the resource reservation status of the replied 200OK is none; but at the same time the called terminal sends 200OK, because the terminal has completed the upload of the measurement report of the B1 event, the network side sends an indication signaling to the terminal and releases the 5G DRB (Data Radio Bearer), resulting in the called party's 200OK being unable to be sent successfully. After the called party's EPS Fallback is completed, the network establishes a dedicated DRB, and the called party sends a 180Ring (ringing message) to the network. When the network receives the 180Ring, it waits temporarily and retransmits the update message that it has not received a reply to before. Because the called party receives the update message with the same sequence number again, the called party will retransmit the previous 200OK. In this scenario, the resource reservation status in the 200OK replied by the called party to the retransmission update message is still none; the network's understanding of the media resource reservation status of the calling and called party is still that the called party has no dedicated DRB, so the downlink RTP (Real-time Transport Protocol) packet is closed, resulting in a silent call. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a method, device and terminal for processing voice fallback, so as to solve the problem of single call caused by conflict between IMS process and switching process in the prior art.

[0006] In order to solve the above problem, an embodiment of the present invention provides a method for processing voice fallback, including:

[0007] When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends a first update response message or a second update message to the second terminal;

[0008] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0009] Before sending the update response message to the second terminal, the method further includes:

[0010] The first terminal receives a first update message sent by the second terminal;

[0011] If the first terminal has received a B1 event measurement request or a switching request when the first update message is received, the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

[0012] Before sending the second update message to the second terminal, the method further includes:

[0013] The first terminal receives a third update message sent by the second terminal;

[0014] If the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message, the first terminal sends a third update response message of the third update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0015] A B1 event measurement request or a handover request is received, and according to the B1 event measurement request or the handover request, the first wireless communication technology network is fallen back to the second wireless communication technology network.

[0016] After sending the second update message to the second terminal, the method further includes:

[0017] A second update response message of the second update message sent by the second terminal is received, and a ringing message is sent to the second terminal.

[0018] The embodiment of the present invention also provides a method for processing voice fallback, including:

[0019] When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the second terminal receives the first update response message or the second update message sent by the first terminal;

[0020] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0021] Before the second terminal receives the first update response message sent by the first terminal, the method further includes:

[0022] Sending a first update message to the first terminal;

[0023] The second terminal receives the first update response message sent by the first terminal, including:

[0024] If the first terminal has received a B1 event measurement request or a handover request when receiving the first update message, a first update response message sent by the first terminal after falling back to the second wireless communication technology network is received.

[0025] Before the second terminal receives the second update message sent by the first terminal, the method further includes:

[0026] Sending a third update message to the first terminal;

[0027] If the first terminal does not receive a B1 event measurement request or a switching request when receiving the first update message, receive a third update response message of the third update message sent by the first terminal; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0028] The second terminal receiving the second update message sent by the first terminal includes:

[0029] A second update message is received, which is sent by the first terminal after the first terminal falls back to the second wireless communication technology network.

[0030] Wherein, the method further comprises:

[0031] A second update response message of the second update message is sent to the first terminal, and a ringing message sent by the first terminal is received.

[0032] The embodiment of the present invention further provides a voice fallback processing device, which is applied to a first terminal and includes:

[0033] A first sending module, configured to send a first update response message or a second update message to a second terminal when the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network;

[0034] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0035] An embodiment of the present invention further provides a terminal, which is a first terminal and includes a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to perform the following operations:

[0036] When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, sending a first update response message or a second update message to the second terminal;

[0037] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0038] The processor is further configured to perform the following operations:

[0039] Receiving a first update message sent by the second terminal;

[0040] If the first update message is received, the first terminal has received a B1 event measurement request or a switching request, and falls back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

[0041] The processor is further configured to perform the following operations:

[0042] receiving a third update message sent by the second terminal;

[0043] If the first terminal does not receive the B1 event measurement request or the switching request when receiving the third update message, a third update response message is sent to the third update message; the third update response message includes: the resource reservation state before falling back to the second wireless communication technology network;

[0044] A B1 event measurement request or a handover request is received, and according to the B1 event measurement request or the handover request, the first wireless communication technology network is fallen back to the second wireless communication technology network.

[0045] The processor is further configured to perform the following operations:

[0046] A second update response message of the second update message sent by the second terminal is received, and a ringing message is sent to the second terminal.

[0047] The embodiment of the present invention further provides a voice fallback processing device, which is applied to a second terminal, including:

[0048] A first receiving module is used to receive a first update response message or a second update message sent by the first terminal when the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network;

[0049] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0050] An embodiment of the present invention further provides a terminal, which is a second terminal and includes a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to perform the following operations:

[0051] When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, receiving a first update response message or a second update message sent by the first terminal;

[0052] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0053] The processor is further configured to perform the following operations:

[0054] Sending a first update message to the first terminal;

[0055] If the first terminal has received a B1 event measurement request or a handover request when receiving the first update message, a first update response message sent by the first terminal after falling back to the second wireless communication technology network is received.

[0056] The processor is further configured to perform the following operations:

[0057] Sending a third update message to the first terminal;

[0058] If the first terminal does not receive a B1 event measurement request or a switching request when receiving the first update message, receive a third update response message of the third update message sent by the first terminal; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0059] A second update message is received, which is sent by the first terminal after the first terminal falls back to the second wireless communication technology network.

[0060] The processor is further configured to perform the following operations:

[0061] A second update response message of the second update message is sent to the first terminal, and a ringing message sent by the first terminal is received.

[0062] An embodiment of the present invention further provides a terminal, including a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned voice fallback processing method when executing the program.

[0063] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps in the voice fallback processing method described above are implemented.

[0064] The above technical solution of the present invention has at least the following beneficial effects:

[0065] In the voice fallback processing method, device and terminal of the embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 A schematic diagram showing the steps of a method for processing voice fallback provided by an embodiment of the present invention;

[0067] Figure 2 The first application example of the method for processing voice fallback provided by the embodiment of the present invention is shown;

[0068] Figure 3 The second application example of the method for processing voice fallback provided by the embodiment of the present invention is shown;

[0069] Figure 4 A second schematic diagram showing the steps of the method for processing voice fallback provided by an embodiment of the present invention;

[0070] Figure 5 A schematic diagram showing a structure of a device for processing voice fallback provided by an embodiment of the present invention;

[0071] Figure 6 One of the schematic diagrams showing the structure of a terminal provided by an embodiment of the present invention;

[0072] Figure 7 A second structural diagram showing a device for processing voice fallback provided by an embodiment of the present invention;

[0073] Figure 8 The second structural diagram of the terminal provided by the embodiment of the present invention is shown. DETAILED DESCRIPTION

[0074] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0075] like Figure 1 As shown, an embodiment of the present invention provides a method for processing voice fallback, including:

[0076] Step 101: When a first terminal falls back from a first wireless communication technology network to a second wireless communication technology network, the first terminal sends a first update (UPDATE) response message or a second update (UPDATE) message to a second terminal;

[0077] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0078] Optionally, the first wireless communication technology network is a 5G network, and the second wireless communication technology network is a 4G network; or, the first wireless communication technology network is a 6G network, and the second wireless communication technology network is a 5G network or a 4G network, which is not specifically limited here.

[0079] In order to avoid the situation where the resource reservation status in the update response message returned by the terminal when receiving the update message on the first wireless communication technology network is incorrect (and the incorrect resource reservation status may not be successful due to the fallback from 5G to 4G), at least one embodiment of the present invention sends an UPDATE response message or a new UPDATE message after the terminal falls back, thereby ensuring the correctness of the returned resource reservation status, and because the UPDATE response message or the new UPDATE message occurs after the fallback, it is also ensured that the UPDATE response message or the new UPDATE message will not fail to send.

[0080] As an optional embodiment, before sending the update response message to the second terminal, the method further includes:

[0081] The first terminal receives a first update message sent by the second terminal;

[0082] If the first terminal has received a B1 event measurement request or a switching request when the first update message is received, the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

[0083] like Figure 2The second terminal sends a first update message to the first terminal through the calling network and the called IMS network. When the second terminal receives the first update message, it has already received a B1 event measurement request or a switching request. The second terminal does not temporarily return an update response message. Instead, when the first terminal falls back to 4G and completes resource reservation (also known as dedicated bearer establishment completion), the second terminal feeds back the first update response message to the second terminal through the called IMS network and the calling network. The first update response message is an SDP (Session Description Protocol) message, which carries the correct resource reservation status. Subsequently, the first terminal sends a 180 message (i.e., a ringing message) and rings the first terminal.

[0084] As another optional embodiment, before sending the second update message to the second terminal, the method further includes:

[0085] The first terminal receives a third update message sent by the second terminal;

[0086] If the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message, the first terminal sends a third update response message of the third update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0087] A B1 event measurement request or a handover request is received, and according to the B1 event measurement request or the handover request, the first wireless communication technology network is fallen back to the second wireless communication technology network.

[0088] Further, after sending the second update message to the second terminal, the method further includes:

[0089] A second update response message of the second update message sent by the second terminal is received, and a ringing message is sent to the second terminal.

[0090] like Figure 3As shown, the second terminal sends a third update message to the first terminal through the calling network and the called IMS network. When the first terminal receives the third update message, it has not received a B1 event measurement request or a switching request, and the first terminal normally feeds back a third update response message; subsequently, when the wireless network initiates a resource reservation process to send a B1 event measurement request to the first terminal, the first terminal falls back to 4G and completes resource reservation (also referred to as dedicated bearer establishment completion), the first terminal sends a second update message to the second terminal through the called IMS network and the calling network. The second update message is an SDP (Session Description Protocol) message, which carries the correct resource reservation status; subsequently, when the first terminal receives the second update response message sent by the second terminal, the first terminal sends a 180 message (i.e., a ringing message) again and rings the first terminal.

[0091] To summarize, in the embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

[0092] like Figure 4 As shown, the embodiment of the present invention also provides a method for processing voice fallback, including:

[0093] Step 401: When a first terminal falls back from a first wireless communication technology network to a second wireless communication technology network, a second terminal receives a first update response message or a second update message sent by the first terminal;

[0094] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0095] Optionally, the first wireless communication technology network is a 5G network, and the second wireless communication technology network is a 4G network; or, the first wireless communication technology network is a 6G network, and the second wireless communication technology network is a 5G network or a 4G network, which is not specifically limited here.

[0096] In order to avoid the situation where the resource reservation status in the update response message returned by the terminal when receiving the update message on the first wireless communication technology network is incorrect (and the incorrect resource reservation status may not be successful due to the fallback from 5G to 4G), at least one embodiment of the present invention sends an UPDATE response message or a new UPDATE message after the terminal falls back, thereby ensuring the correctness of the returned resource reservation status, and because the UPDATE response message or the new UPDATE message occurs after the fallback, it is also ensured that the UPDATE response message or the new UPDATE message will not fail to send.

[0097] As an optional embodiment, before the second terminal receives the first update response message sent by the first terminal, the method further includes:

[0098] Sending a first update message to the first terminal;

[0099] In step 401, the second terminal receives a first update response message sent by the first terminal, including:

[0100] If the first terminal has received a B1 event measurement request or a handover request when receiving the first update message, a first update response message sent by the first terminal after falling back to the second wireless communication technology network is received.

[0101] like Figure 2 The second terminal sends a first update message to the first terminal through the calling network and the called IMS network. When the second terminal receives the first update message, it has already received a B1 event measurement request or a switching request. The second terminal does not temporarily return an update response message. Instead, when the first terminal falls back to 4G and completes resource reservation (also known as dedicated bearer establishment completion), the second terminal feeds back the first update response message to the second terminal through the called IMS network and the calling network. The first update response message is an SDP (Session Description Protocol) message, which carries the correct resource reservation status. Subsequently, the first terminal sends a 180 message (i.e., a ringing message) and rings the first terminal.

[0102] As another optional embodiment, before the second terminal receives the second update message sent by the first terminal, the method further includes:

[0103] Sending a third update message to the first terminal;

[0104] If the first terminal does not receive a B1 event measurement request or a switching request when receiving the first update message, receive a third update response message of the third update message sent by the first terminal; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0105] In step 401, the second terminal receives the second update message sent by the first terminal, including:

[0106] A second update message is received, which is sent by the first terminal after the first terminal falls back to the second wireless communication technology network.

[0107] Furthermore, the method further comprises:

[0108] A second update response message of the second update message is sent to the first terminal, and a ringing message sent by the first terminal is received.

[0109] like Figure 3 As shown, the second terminal sends a third update message to the first terminal through the calling network and the called IMS network. When the second terminal receives the third update message, it has not received the B1 event measurement request or the switching request, and the second terminal normally feeds back the third update response message; subsequently, when the wireless network initiates a resource reservation process to send a B1 event measurement request to the first terminal, the first terminal falls back to 4G and completes the resource reservation (also known as the dedicated bearer establishment completion), the first terminal sends a second update message to the second terminal through the called IMS network and the calling network. The second update message is an SDP (Session Description Protocol) message, which carries the correct resource reservation status; subsequently, when the first terminal receives the second update response message sent by the second terminal, the first terminal sends a 180 message (i.e., a ringing message) again and rings the first terminal.

[0110] To summarize, in the embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

[0111] It should be noted that the B1 measurement event mentioned in the embodiment of the present invention is that the quality of the neighboring cell is higher than a certain threshold, which is used to measure high-priority heterogeneous system cells, that is, the heterogeneous system neighboring cell signal is stronger than the absolute threshold.

[0112] like Figure 5 As shown, an embodiment of the present invention further provides a voice fallback processing device, which is applied to a first terminal, including:

[0113] The first sending module 501 is used to send a first update response message or a second update message to the second terminal when the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network;

[0114] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0115] As an optional embodiment, the device further includes:

[0116] A second receiving module, used to receive a first update message sent by a second terminal;

[0117] The first fallback module is configured to, if the first terminal has received a B1 event measurement request or a switching request when receiving the first update message, fall back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

[0118] As an optional embodiment, the device further includes:

[0119] A third receiving module, used to receive a third update message sent by the second terminal;

[0120] A second sending module is configured to send a third update response message of the third update message if the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0121] The fourth receiving mode is used to receive a B1 event measurement request or a switching request, and fall back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

[0122] As an optional embodiment, the device further includes:

[0123] The first transceiver module is configured to receive a second update response message of a second update message sent by a second terminal, and send a ringing message to the second terminal.

[0124] In an embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

[0125] It should be noted that the voice fallback processing device provided in the embodiment of the present invention is a device capable of executing the above-mentioned voice fallback processing method, and all embodiments of the above-mentioned voice fallback processing method are applicable to the device and can achieve the same or similar beneficial effects.

[0126] like Figure 6As shown, an embodiment of the present invention further provides a terminal, which is a first terminal, including a processor 600 and a transceiver 610, wherein the transceiver 610 receives and sends data under the control of the processor 600, and the processor 600 is used to perform the following operations:

[0127] When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, sending a first update response message or a second update message to the second terminal;

[0128] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0129] As an optional embodiment, the processor 600 is further configured to perform the following operations:

[0130] Receiving a first update message sent by the second terminal;

[0131] If the first update message is received, the first terminal has received a B1 event measurement request or a switching request, and falls back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

[0132] As an optional embodiment, the processor 600 is further configured to perform the following operations:

[0133] receiving a third update message sent by the second terminal;

[0134] If the first terminal does not receive the B1 event measurement request or the switching request when receiving the third update message, a third update response message is sent to the third update message; the third update response message includes: the resource reservation state before falling back to the second wireless communication technology network;

[0135] A B1 event measurement request or a handover request is received, and according to the B1 event measurement request or the handover request, the first wireless communication technology network is fallen back to the second wireless communication technology network.

[0136] As an optional embodiment, the processor 600 is further configured to perform the following operations:

[0137] A second update response message of the second update message sent by the second terminal is received, and a ringing message is sent to the second terminal.

[0138] In an embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

[0139] It should be noted that the terminal provided in the embodiment of the present invention is a terminal capable of executing the above-mentioned voice fallback processing method, and all embodiments of the above-mentioned voice fallback processing method are applicable to the terminal and can achieve the same or similar beneficial effects.

[0140] like Figure 7 As shown, the embodiment of the present invention further provides a voice fallback processing device, which is applied to a second terminal, including:

[0141] The first receiving module 701 is used to receive a first update response message or a second update message sent by the first terminal when the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network;

[0142] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0143] As an optional embodiment, the device further includes:

[0144] A third sending module, used to send a first update message to the first terminal;

[0145] The first receiving module comprises:

[0146] The first receiving submodule is configured to receive a first update response message sent by the first terminal after falling back to the second wireless communication technology network if the first terminal has received a B1 event measurement request or a switching request when receiving the first update message.

[0147] As an optional embodiment, the device further includes:

[0148] A fourth sending module, configured to send a third update message to the first terminal;

[0149] A sixth receiving module, configured to receive a third update response message of the third update message sent by the first terminal if the first terminal does not receive a B1 event measurement request or a switching request when receiving the first update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0150] The first receiving module comprises:

[0151] The second receiving submodule is used to receive a second update message sent by the first terminal after falling back to the second wireless communication technology network.

[0152] As an optional embodiment, the device further includes:

[0153] The second transceiver module is used to send a second update response message of the second update message to the first terminal, and receive a ringing message sent by the first terminal.

[0154] In an embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

[0155] It should be noted that the voice fallback processing device provided in the embodiment of the present invention is a device capable of executing the above-mentioned voice fallback processing method, and all embodiments of the above-mentioned voice fallback processing method are applicable to the device and can achieve the same or similar beneficial effects.

[0156] like Figure 8 As shown, an embodiment of the present invention further provides a terminal, which is a second terminal, including a processor 800 and a transceiver 810, wherein the transceiver 810 receives and sends data under the control of the processor 800, and the processor 800 is used to perform the following operations:

[0157] When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, receiving a first update response message or a second update message sent by the first terminal;

[0158] The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network.

[0159] As an optional embodiment, the processor 800 is further configured to perform the following operations:

[0160] Sending a first update message to the first terminal;

[0161] If the first terminal has received a B1 event measurement request or a handover request when receiving the first update message, a first update response message sent by the first terminal after falling back to the second wireless communication technology network is received.

[0162] As an optional embodiment, the processor 800 is further configured to perform the following operations:

[0163] Sending a third update message to the first terminal;

[0164] If the first terminal does not receive a B1 event measurement request or a switching request when receiving the first update message, receive a third update response message of the third update message sent by the first terminal; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network;

[0165] A second update message is received, which is sent by the first terminal after the first terminal falls back to the second wireless communication technology network.

[0166] As an optional embodiment, the processor 800 is further configured to perform the following operations:

[0167] A second update response message of the second update message is sent to the first terminal, and a ringing message sent by the first terminal is received.

[0168] In an embodiment of the present invention, after the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends an update response message or a new update message to ensure that the resource reservation status sent is correct and will not fail to send, thereby improving the user's voice service experience.

[0169] It should be noted that the terminal provided in the embodiment of the present invention is a terminal capable of executing the above-mentioned voice fallback processing method, and all embodiments of the above-mentioned voice fallback processing method are applicable to the terminal and can achieve the same or similar beneficial effects.

[0170] An embodiment of the present invention also provides a terminal, which is a first terminal or a second terminal, and includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, each process in the embodiment of the voice fallback processing method as described above is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0171] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, each process in the above-mentioned speech fallback processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0172] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0173] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A device that specifies functions in one or more processes and / or one or more blocks.

[0174] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable storage medium produce a paper product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0175] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that the computer or other programmable device executes a series of operating steps to produce a computer-implemented process, thereby providing instructions executed on the computer or other programmable device for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0176] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for processing voice fallback, characterized in that: include: When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the first terminal sends a first update response message or a second update message to the second terminal; The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network; Before sending the update response message to the second terminal, the method further includes: The first terminal receives a first update message sent by the second terminal; If the first terminal has received a B1 event measurement request or a handover request when the first update message is received, the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the handover request; or Before sending the second update message to the second terminal, the method further includes: The first terminal receives a third update message sent by the second terminal; If the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message, the first terminal sends a third update response message of the third update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network; A B1 event measurement request or a handover request is received, and according to the B1 event measurement request or the handover request, the first wireless communication technology network is fallen back to the second wireless communication technology network.

2. The method according to claim 1, characterized in that After sending the second update message to the second terminal, the method further includes: A second update response message of the second update message sent by the second terminal is received, and a ringing message is sent to the second terminal.

3. A method for processing voice fallback, characterized in that: include: When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, the second terminal receives the first update response message or the second update message sent by the first terminal; The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network; Before the second terminal receives the first update response message sent by the first terminal, the method further includes: Sending a first update message to the first terminal; The second terminal receives the first update response message sent by the first terminal, including: If the first terminal has received a B1 event measurement request or a handover request when receiving the first update message, receiving a first update response message sent by the first terminal after falling back to the second wireless communication technology network; or, Before the second terminal receives the second update message sent by the first terminal, the method further includes: Sending a third update message to the first terminal; If the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message, receive a third update response message of the third update message sent by the first terminal; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network; The second terminal receiving the second update message sent by the first terminal includes: A second update message is received, which is sent by the first terminal after the first terminal falls back to the second wireless communication technology network.

4. The method according to claim 3, characterized in that The method further comprises: A second update response message of the second update message is sent to the first terminal, and a ringing message sent by the first terminal is received.

5. A voice fallback processing device, applied to a first terminal, characterized in that: include: A first sending module, configured to send a first update response message or a second update message to a second terminal when the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network; The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network; The device also includes: A second receiving module, used to receive a first update message sent by a second terminal; A first fallback module is configured to, if the first terminal has received a B1 event measurement request or a switching request when receiving the first update message, fall back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request; or The device also includes: A third receiving module, used to receive a third update message sent by the second terminal; A second sending module is configured to send a third update response message of the third update message if the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network; The fourth receiving module is configured to receive a B1 event measurement request or a switching request, and fall back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request.

6. A terminal, which is a first terminal, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, characterized in that: The processor is configured to perform the following operations: When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, sending a first update response message or a second update message to the second terminal; The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network; The processor is further configured to perform the following operations: Receiving a first update message sent by the second terminal; If, when receiving the first update message, the first terminal has received a B1 event measurement request or a switching request, the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network according to the B1 event measurement request or the switching request; or The processor is further configured to perform the following operations: receiving a third update message sent by the second terminal; If the first terminal does not receive the B1 event measurement request or the switching request when receiving the third update message, a third update response message is sent to the third update message; the third update response message includes: the resource reservation state before falling back to the second wireless communication technology network; A B1 event measurement request or a handover request is received, and according to the B1 event measurement request or the handover request, the first wireless communication technology network is fallen back to the second wireless communication technology network.

7. The terminal according to claim 6, characterized in that: The processor is further configured to perform the following operations: A second update response message of the second update message sent by the second terminal is received, and a ringing message is sent to the second terminal.

8. A voice fallback processing device, applied to a second terminal, characterized in that: include: A first receiving module is used to receive a first update response message or a second update message sent by the first terminal when the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network; The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network; The device also includes: A third sending module, used to send a first update message to the first terminal; The first receiving module comprises: A first receiving submodule is configured to receive a first update response message sent by the first terminal after falling back to the second wireless communication technology network if the first terminal has received a B1 event measurement request or a switching request when receiving the first update message; or The device also includes: A fourth sending module, configured to send a third update message to the first terminal; A sixth receiving module, configured to receive a third update response message of the third update message sent by the first terminal if the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network; 9. A terminal, the terminal being a second terminal, comprising a processor and a transceiver, the transceiver receiving and sending data under the control of the processor, characterized in that: The processor is configured to perform the following operations: When the first terminal falls back from the first wireless communication technology network to the second wireless communication technology network, receiving a first update response message or a second update message sent by the first terminal; The first update response message or the second update message includes: a resource reservation state after falling back to the second wireless communication technology network; The processor is further configured to perform the following operations: Sending a first update message to the first terminal; If the first terminal has received a B1 event measurement request or a handover request when receiving the first update message, receiving a first update response message sent by the first terminal after falling back to the second wireless communication technology network; The processor is further configured to perform the following operations: Sending a third update message to the first terminal; If the first terminal does not receive a B1 event measurement request or a switching request when receiving the third update message, receive a third update response message of the third update message sent by the first terminal; the third update response message includes: a resource reservation state before falling back to the second wireless communication technology network; A second update message is received, which is sent by the first terminal after the first terminal falls back to the second wireless communication technology network.

10. The terminal according to claim 9, characterized in that: The processor is further configured to perform the following operations: A second update response message of the second update message is sent to the first terminal, and a ringing message sent by the first terminal is received.

11. A terminal comprising a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that: When the processor executes the program, the method for processing voice fallback as described in any one of claims 1-2 is implemented, or when the processor executes the program, the method for processing voice fallback as described in any one of claims 3-4 is implemented.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps in the method for processing voice fallback as described in any one of claims 1-2 are implemented; or, when the program is executed by a processor, the steps in the method for processing voice fallback as described in any one of claims 3-4 are implemented.

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