A dual-card dual-standby dual-pass terminal communication method and device

Abstract

The application discloses a dual-card dual-standby dual-communication terminal communication method and device. The method comprises the following steps: when a first communication card of a terminal is out of service and a second communication card is in service, performing a cell search operation on at least one first candidate frequency band of the first communication card by using the first radio frequency resource applied for by a radio resource control layer; wherein the first candidate frequency band is a frequency band constituting a dual-card dual-standby dual-communication (DSDA) frequency band combination with a working frequency band of the second communication card; and performing a camping operation of the first communication card on a first suitable cell when the first suitable cell is searched. Thus, for the out-of-service card (i.e. the first communication card) of the terminal, the cell search is performed on the first candidate frequency band constituting the DSDA frequency band combination with the working frequency band of the in-service card (i.e. the second communication card), so that the terminal works in the DSDA state and realizes the dual-card dual-standby dual-communication function of the terminal.

Description

Technical Field

[0001] This application relates to communication technology, and more particularly to a terminal communication method and apparatus for dual-SIM dual-standby dual-pass. Background Technology

[0002] With the development of communication technology, terminals can now support Dual SIM Dual Active (DSDA) functionality. When the frequency bands on which the two SIM cards are registered are within the DSDA frequency band combination, the terminal operates in DSDA mode; otherwise, the terminal operates in Dual SIM Dual Standby (DSDS) mode.

[0003] If a terminal makes a call using one of the communication cards, and the terminal switches from DSDA to DSDS, it cannot return to DSDA, resulting in the other communication card remaining unserviced. Summary of the Invention

[0004] This application aims to provide a terminal communication method and apparatus for dual-SIM dual-standby dual-pass devices.

[0005] The technical solution of this application is implemented as follows:

[0006] In a first aspect, a terminal communication method for dual-SIM dual-standby dual-pass is provided, the method comprising:

[0007] When the first communication card of the terminal has no service and the second communication card has service, the terminal uses the first radio frequency resources applied for by the radio resource control layer to perform a cell search operation in at least one first candidate frequency band of the first communication card; wherein, the first candidate frequency band is a frequency band that forms a dual-card dual-pass DSDA frequency band combination with the operating frequency band of the second communication card.

[0008] If a first suitable cell is found, the first communication card is allowed to stay in the first suitable cell.

[0009] Secondly, a dual-SIM dual-standby dual-pass terminal communication device is provided, characterized in that the device comprises:

[0010] The processing unit is configured to, when the first communication card of the terminal is not serving and the second communication card is serving, perform a cell search operation using the requested first radio frequency resources through the radio resource control layer in at least one first candidate frequency band of the first communication card; wherein the first candidate frequency band is a frequency band that forms a dual-card dual-pass DSDA frequency band combination with the operating frequency band of the second communication card; and when a first suitable cell is found, perform a camping operation of the first communication card in the first suitable cell.

[0011] Thirdly, a terminal is provided, comprising: a processor and a memory configured to store a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the method of the first aspect when running the computer program.

[0012] Fourthly, a computer-readable storage medium is provided having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of the first aspect.

[0013] This application discloses a terminal communication method and apparatus for dual-SIM dual-standby dual-pass. For the terminal without a service card (i.e., the first communication card), cell search is performed in the first candidate frequency band that forms a DSDA frequency band combination with the working frequency band of the service card (i.e., the second communication card). This is done so that the terminal can work in DSDA state and realize the dual-SIM dual-standby dual-pass function of the terminal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first process of the terminal communication method for dual SIM dual standby dual pass in the embodiments of this application;

[0015] Figure 2 This is a second flowchart illustrating the terminal communication method for dual-SIM dual-standby dual-pass in the embodiments of this application;

[0016] Figure 3 This is a schematic diagram of the third process of the terminal communication method for dual SIM dual standby dual pass in the embodiments of this application;

[0017] Figure 4 This is a schematic diagram of the structure of a dual-SIM dual-standby dual-pass terminal communication device in an embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the terminal composition structure in the embodiments of this application. Detailed Implementation

[0019] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0020] This application provides a terminal communication method for dual-SIM dual-standby dual-pass devices. Figure 1 This is a first flowchart illustrating the terminal communication method for dual SIM dual standby dual pass in this application embodiment, applied to a terminal, and the example terminal can be a mobile phone.

[0021] like Figure 1 As shown, the terminal communication method for dual SIM dual standby dual pass can specifically include:

[0022] Step 101: When the first communication card of the terminal has no service and the second communication card has service, the terminal performs a cell search operation by using the first radio frequency resources applied for through the radio resource control layer in at least one first candidate frequency band of the first communication card; wherein, the first candidate frequency band is a frequency band that forms a DSDA frequency band combination with the operating frequency band of the second communication card.

[0023] It should be noted that for the terminal without a service card (i.e., the first communication card), cell search is performed in the first candidate frequency band that forms a DSDA frequency band combination with the operating frequency band of the service card (i.e., the second communication card). This is done so that the terminal can work in DSDA state and realize the dual-SIM dual-standby dual-pass function of the terminal.

[0024] In some embodiments, the dual-SIM service status sent by the radio control layer is received through the radio resource control (RRC) layer; wherein the dual-SIM service status is used to indicate whether the first communication card and the second communication card have service.

[0025] Here, the RRC layer determines, based on the dual-card service status, that the first communication card has no service and the second communication card has service.

[0026] For example, one possibility is that the first communication card has no service because there is no network signal. Another possibility is that the terminal is in the process of making a call through the second communication card. The terminal's working state switches from DSDA state to DSDS state or is in DSDS state. In DSDS state, the two communication cards share a radio frequency resource. However, the second communication card is currently occupying the radio frequency resource, resulting in the first communication card having no service.

[0027] In some embodiments, it also includes:

[0028] The radio resource control layer sends a radio frequency resource request to the radio frequency control layer.

[0029] The radio resource control layer receives the idle radio resource returned by the radio frequency control layer in response to the radio frequency resource request; and uses the idle radio resource as the first radio frequency resource.

[0030] For example, the terminal's radio frequency control layer includes two radio frequency resources. If the second communication card occupies one of the radio frequency resources, while the first communication card has no service and does not occupy any radio frequency resources, then when the radio frequency control layer receives a radio frequency resource request sent by the RRC layer, it will allocate the idle radio frequency resources to the first communication card that has no service.

[0031] Table 1 is a schematic diagram of an example DSDA band combination in the embodiments of this application.

[0032]

[0033] As shown in Table 1, for example, if the second communication card is registered in the n1 frequency band, then the first candidate frequency bands of the first communication card include the n1, n5, n8, n28, and n41 frequency bands; for example, if the second communication card is registered in the n5 frequency band, then the first candidate frequency bands of the first communication card include the n1 and n41 frequency bands; for example, if the second communication card is registered in the n8 frequency band, then the first candidate frequency bands of the first communication card include the n1 and n41 frequency bands; for example, if the second communication card is registered in the n28 frequency band, then the first candidate frequency bands of the first communication card include the n1 and n41 frequency bands; for example, if the second communication card is registered in the n41 frequency band, then the first candidate frequency bands of the first communication card include the n1, n5, n8, n28, and n41 frequency bands.

[0034] In some embodiments, after performing the cell search operation, the method further includes:

[0035] Identify at least one candidate cell that meets the residency criteria from at least one cell found in the search;

[0036] The candidate cell with the strongest signal strength among the at least one candidate cells is selected as the first suitable cell.

[0037] In other words, firstly, at least one candidate cell that meets the dwell conditions is determined from at least one cell found in the search, and then the first suitable cell is determined from at least one candidate cell that meets the dwell conditions.

[0038] In some embodiments, determining at least one candidate cell that meets the dwell conditions from at least one searched cell includes:

[0039] The signal quality of the at least one cell is measured to obtain a signal quality metric for the at least one cell; wherein the signal quality metric includes at least a reference signal received power and a reference signal received quality;

[0040] The dwell conditions include: the reference signal received power is greater than the received power threshold, and the reference signal received quality is greater than the received quality threshold.

[0041] In other words, the signal quality of at least one searched cell is measured to obtain the reference signal received power and reference signal received quality of at least one cell. Cells whose reference signal received power is greater than a received power threshold and whose reference signal received quality is greater than a received quality threshold are selected as candidate cells. If there is only one candidate cell, it is selected as the first suitable cell. If there are two or more candidate cells, the candidate cell with the strongest signal strength is selected as the first suitable cell. Signal strength is determined by the parameter of reference signal received power.

[0042] Step 102: If a first suitable cell is found, perform the camping operation of the first communication card in the first suitable cell.

[0043] In some embodiments, performing the camping operation of the first communication card in the first suitable cell includes:

[0044] The radio resource control layer sends an indication message, including the identification information of the first suitable cell, to the non-access layer.

[0045] The non-access layer generates a network access request for the first communication card in the first suitable cell based on the indication information;

[0046] The network registration request is transmitted to the network device via the non-access layer, through the radio resource control layer and the radio frequency control layer. The network registration request instructs the network device to complete the network registration of the first communication card in the first suitable cell. The network device may be a base station.

[0047] In other words, by initiating a network registration request for the no-service SIM card (i.e., the first communication SIM card) to the network device through the Non-Access Stratum (NAS), the network device completes the registration of the no-service SIM card in the first suitable cell. In this way, the no-service SIM card successfully returns to the network, and the terminal works in DSDA state, realizing the dual-SIM dual-standby dual-pass function of the terminal.

[0048] Here, the execution entity for steps 101 to 102 can be the terminal's processor.

[0049] This application discloses a dual-SIM dual-standby dual-pass terminal communication method. For the terminal's no-service SIM card (i.e., the first communication card), cell search is performed within a first candidate frequency band that forms a DSDA frequency band combination with the operating frequency band of the service SIM card (i.e., the second communication card). This is done to enable the terminal to operate in DSDA mode, realizing the dual-SIM dual-standby dual-pass function. When the terminal is operating in DSDA mode, during a call or internet access operation of communication card 1, communication card 2 will not miss incoming calls, and internet access by communication card 1 will not be interrupted; when communication card 2 sends and receives SMS messages and interacts with network signaling, communication card 1 can access the internet or play games without lag, and so on. When communication card 1 is the first communication card, communication card 2 is the second communication card; when communication card 1 is the second communication card, communication card 2 is the first communication card.

[0050] To better illustrate the purpose of this application, further examples are provided based on the above embodiments. Figure 2 This is a schematic diagram of the second process of the dual-SIM dual-standby dual-pass terminal communication method in the embodiments of this application, as shown below. Figure 2As shown, the terminal communication method for dual SIM dual standby dual pass specifically includes:

[0051] Step 201: When the first communication card of the terminal has no service and the second communication card has service and is in a call state, the terminal performs a cell search operation by using the first radio frequency resources applied for by the radio resource control layer in at least one first candidate frequency band of the first communication card; wherein, the first candidate frequency band is a frequency band that forms a DSDA frequency band combination with the operating frequency band of the second communication card.

[0052] In this embodiment of the application, when the terminal is in a call via the second communication card, if the terminal's working state switches from DSDA state to DSDS state or is in DSDS state, the two communication cards share a radio frequency resource in DSDS state. However, the second communication card is currently occupying the radio frequency resource, resulting in the first communication card having no service.

[0053] In some embodiments, the dual-SIM service status sent by the radio control layer is received through the radio resource control (RRC) layer; wherein the dual-SIM service status is used to indicate whether the first communication card and the second communication card have service.

[0054] Here, the RRC layer determines, based on the dual-card service status, that the first communication card has no service and the second communication card has service.

[0055] In some embodiments, the radio resource control layer receives the dual-SIM call status sent by the non-access layer; wherein the dual-SIM call status is used to indicate whether the first communication card and the second communication card are in a call.

[0056] Here, the RRC layer determines whether the first communication card is in a non-calling state and the second communication card is in a calling state based on the dual-card call status.

[0057] In some embodiments, it also includes:

[0058] The radio resource control layer sends a radio frequency resource request to the radio frequency control layer.

[0059] The radio resource control layer receives the idle radio resource returned by the radio frequency control layer in response to the radio frequency resource request; and uses the idle radio resource as the first radio frequency resource.

[0060] For example, the terminal's radio frequency control layer includes two radio frequency resources. The second communication card is in a call state, that is, the second communication card occupies one radio frequency resource, while the first communication card is in a non-call state, that is, the first communication card does not occupy radio frequency resources. When the radio frequency control layer receives a radio frequency resource request sent by the RRC layer, it will allocate the idle radio frequency resources to the first communication card that is not in service.

[0061] For example, as shown in Table 1, if the second communication card is registered in the n1 frequency band, then the first candidate frequency bands of the first communication card include the n1, n5, n8, n28, and n41 frequency bands; if the second communication card is registered in the n5 frequency band, then the first candidate frequency bands of the first communication card include the n1 and n41 frequency bands; if the second communication card is registered in the n8 frequency band, then the first candidate frequency bands of the first communication card include the n1 and n41 frequency bands; if the second communication card is registered in the n28 frequency band, then the first candidate frequency bands of the first communication card include the n1 and n41 frequency bands; if the second communication card is registered in the n41 frequency band, then the first candidate frequency bands of the first communication card include the n1, n5, n8, n28, and n41 frequency bands.

[0062] In some embodiments, after performing the cell search operation, the method further includes:

[0063] Identify at least one candidate cell that meets the residency criteria from at least one cell found in the search;

[0064] The candidate cell with the strongest signal strength among the at least one candidate cells is selected as the first suitable cell.

[0065] In other words, firstly, at least one candidate cell that meets the dwell conditions is determined from at least one cell found in the search, and then the first suitable cell is determined from at least one candidate cell that meets the dwell conditions.

[0066] In some embodiments, determining at least one candidate cell that meets the dwell conditions from at least one searched cell includes:

[0067] The signal quality of the at least one cell is measured to obtain a signal quality metric for the at least one cell; wherein the signal quality metric includes at least a reference signal received power and a reference signal received quality;

[0068] The dwell conditions include: the reference signal received power is greater than the received power threshold, and the reference signal received quality is greater than the received quality threshold.

[0069] In other words, the signal quality of at least one searched cell is measured to obtain the reference signal received power and reference signal received quality of at least one cell; cells whose reference signal received power is greater than the received power threshold and whose reference signal received quality is greater than the received quality threshold are selected as candidate cells; if the number of candidate cells is 1, the candidate cell is selected as the first suitable cell; if the number of candidate cells is greater than or equal to 2, the candidate cell with the strongest signal strength is selected as the first suitable cell.

[0070] Step 202: If a first suitable cell is found, perform the camping operation of the first communication card in the first suitable cell.

[0071] In some embodiments, performing the camping operation of the first communication card in the first suitable cell includes:

[0072] The radio resource control layer sends an indication message, including the identification information of the first suitable cell, to the non-access layer.

[0073] The non-access layer generates a network access request for the first communication card in the first suitable cell based on the indication information;

[0074] The network registration request is sent to the network device via the non-access layer, the radio resource control layer, and the radio frequency control layer. The network registration request is used to instruct the network device to complete the network registration of the first communication card in the first suitable cell.

[0075] In other words, by initiating a network registration request for the no-service SIM card (i.e., the first communication SIM card) to the network device through the non-access layer, the network device completes the registration of the no-service SIM card in the first suitable cell. In this way, the no-service SIM card successfully returns to the network, and the terminal works in DSDA state, realizing the dual-SIM dual-standby dual-pass function of the terminal.

[0076] This application discloses a communication method for a dual-SIM dual-standby dual-pass terminal. When one communication card of the terminal is not serving and the other communication card is serving and in a call state, since the communication card in the call state has already occupied one radio frequency resource, for the non-serving card (i.e., the first communication card), the remaining idle radio frequency resource (i.e., the first radio frequency resource) is used to search for cells in a first candidate frequency band that forms a DSDA frequency band combination with the working frequency band of the serving card (i.e., the second communication card). If a first suitable cell is found, the first communication card is allowed to camp in the first suitable cell, so that the terminal works in DSDA state and realizes the dual-SIM dual-standby dual-pass function of the terminal; if no first suitable cell is found, it means that there is no suitable cell to camp in, so the terminal cannot work in DSDA state.

[0077] Based on the above embodiments, this application further discloses a terminal communication method for dual-SIM dual-standby dual-pass devices. Figure 3 This is a schematic diagram of the third process of the dual-SIM dual-standby dual-pass terminal communication method in the embodiments of this application, as shown below. Figure 3 As shown, the terminal communication method for dual SIM dual standby dual pass specifically includes:

[0078] Step 301: When the first communication card of the terminal has no service and the second communication card has service but is in a non-call state, the terminal performs a cell search operation by using the first radio frequency resources applied for by the radio resource control layer in at least one first candidate frequency band of the first communication card; wherein, the first candidate frequency band is a frequency band that forms a DSDA frequency band combination with the operating frequency band of the second communication card.

[0079] In this embodiment, the first communication card may be without service due to the lack of network signal. In this case, the service providers of the first and second communication cards are different.

[0080] In some embodiments, the radio resource control layer receives the dual-SIM service status sent by the radio frequency control layer; wherein the dual-SIM service status is used to indicate whether the first communication card and the second communication card have service.

[0081] Here, the radio resource control layer determines, based on the dual-SIM service status, that the first communication card has no service and the second communication card has service.

[0082] In some embodiments, the radio resource control layer receives the dual-SIM call status sent by the non-access layer; wherein the dual-SIM call status is used to indicate whether the first communication card and the second communication card are in a call.

[0083] Here, the radio resource control layer determines that the first and second communication cards are in a non-call state based on the dual-card call status.

[0084] In some embodiments, it also includes:

[0085] The radio resource control layer sends a radio frequency resource request to the radio frequency control layer.

[0086] The radio resource control layer receives the idle radio resource returned by the radio frequency control layer in response to the radio frequency resource request; and uses the idle radio resource as the first radio frequency resource.

[0087] It should be noted that when the terminal is not in a call state, the first communication card and the second communication card can each occupy one radio frequency resource, or they can share one radio frequency resource. In this application, the idle radio frequency resources in the terminal other than those occupied by the second communication card (i.e., the first radio frequency resources) are preferentially allocated to the first communication card. Cell search is performed on the first candidate frequency band of the first communication card using the first radio frequency resources, so that the terminal can preferentially operate in DSDA state.

[0088] It should also be noted that if the terminal cannot operate in DSDA state, cell search can be performed using the second radio frequency resources (i.e., the radio frequency resources occupied by the second communication card) under the second candidate frequency band of the first communication card, so that the terminal can operate in DSDS state.

[0089] Step 302: If a suitable cell is found, perform the camping operation of the first communication card in the suitable cell.

[0090] Here, if a first suitable cell is found in the first candidate frequency band that forms a DSDA frequency band combination with the working frequency band of the second communication card through the first radio frequency resource, the first communication card is allowed to camp in the first suitable cell, so that the terminal works in DSDA state and realizes the dual-SIM dual-standby dual-pass function of the terminal; otherwise, step 303 is executed.

[0091] Step 303: If the first suitable cell is not found, the cell search operation is performed by using the applied second radio frequency resources in at least one second candidate frequency band of the first communication card through the radio resource control layer; wherein, the second candidate frequency band is a frequency band that does not form a DSDA frequency band combination with the operating frequency band of the second communication card.

[0092] Here, if the terminal cannot operate in DSDA state, it requests a second radio frequency resource from the radio resource control layer through the radio frequency control layer. At this time, the first communication card and the second communication card share a radio frequency resource. Then, through the second radio frequency resource, a cell search is performed in the second candidate frequency band that does not form a DSDA frequency band combination with the operating frequency band of the second communication card. If a second suitable cell is found, the first communication card is allowed to camp in the second suitable cell, so that the terminal operates in DSDS state.

[0093] For example, as shown in Table 1, if the second communication card is registered in the n5 frequency band, then the second candidate frequency band of the first communication card includes the n5 frequency band, the n8 frequency band, and the n28 frequency band; if the second communication card is registered in the n28 frequency band, then the second candidate frequency band of the first communication card includes the n5 frequency band, the n8 frequency band, and the n28 frequency band.

[0094] In some embodiments, after performing the cell search operation, the method further includes:

[0095] Identify at least one candidate cell that meets the residency criteria from at least one cell found in the search;

[0096] The candidate cell with the strongest signal strength among the at least one candidate cells is selected as the second suitable cell.

[0097] In other words, first, at least one candidate cell that meets the dwell conditions is determined from at least one cell found in the search, and then a second suitable cell is determined from at least one candidate cell that meets the dwell conditions.

[0098] In some embodiments, determining at least one candidate cell that meets the dwell conditions from at least one searched cell includes:

[0099] The signal quality of the at least one cell is measured to obtain a signal quality metric for the at least one cell; wherein the signal quality metric includes at least a reference signal received power and a reference signal received quality;

[0100] The dwell conditions include: the reference signal received power is greater than the received power threshold, and the reference signal received quality is greater than the received quality threshold.

[0101] In other words, the signal quality of at least one cell is measured to obtain the reference signal received power and reference signal received quality of at least one cell; cells whose reference signal received power is greater than the received power threshold and whose reference signal received quality is greater than the received quality threshold are selected as candidate cells; if the number of candidate cells is 1, the candidate cell is selected as the second suitable cell; if the number of candidate cells is greater than or equal to 2, the candidate cell with the strongest signal strength is selected as the second suitable cell.

[0102] Step 304: If a second suitable cell is found, perform the camping operation of the first communication card in the second suitable cell.

[0103] In some embodiments, performing the camping operation of the first communication card in the second suitable cell includes:

[0104] The radio resource control layer sends an indication message, including the identification information of the second suitable cell, to the non-access layer.

[0105] The non-access layer generates a network access request for the first communication card in the second suitable cell based on the indication information;

[0106] The network registration request is sent to the network device via the non-access layer, the radio resource control layer, and the radio frequency control layer. The network registration request is used to instruct the network device to complete the network registration of the first communication card in the second suitable cell.

[0107] In other words, by initiating a network registration request for the no-service SIM card (i.e., the first communication SIM card) to the network device through the non-access layer, the network device completes the network registration of the no-service SIM card in the second suitable cell. In this way, the no-service SIM card successfully returns to the network, and the terminal works in DSDA state, realizing the dual-SIM dual-standby dual-pass function of the terminal.

[0108] This application discloses a communication method for a dual-SIM dual-standby dual-pass terminal. When one communication card of the terminal is not serving and the other communication card is serving but not in a call state, for the unserving card (i.e., the first communication card), cell search is first performed in a first candidate frequency band that forms a DSDA frequency band combination with the working frequency band of the serving card (i.e., the second communication card) using the first radio frequency resources. If a first suitable cell is found, the first communication card is allowed to camp in the first suitable cell, so that the terminal operates in DSDA state first, realizing the dual-SIM dual-standby dual-pass function of the terminal. If no first suitable cell is found, cell search is then performed in a second candidate frequency band that does not form a DSDA frequency band combination with the working frequency band of the serving card (i.e., the second communication card). If a second suitable cell is found, the first communication card is allowed to camp in the second suitable cell, so that the terminal operates in DSDS state.

[0109] To implement the method of the embodiments of this application, based on the same inventive concept, the embodiments of this application also provide a dual-SIM dual-standby dual-pass terminal communication device. Figure 4 This is a schematic diagram of the structure of a dual-SIM dual-standby dual-pass terminal communication device in an embodiment of this application, as shown below. Figure 4 As shown, the dual-SIM dual-standby dual-pass terminal communication device 40 includes:

[0110] The processing unit 401 is configured to, when the first communication card of the terminal is not serving and the second communication card is serving, perform a cell search operation using the applied first radio frequency resources through the radio resource control layer in at least one first candidate frequency band of the first communication card; wherein the first candidate frequency band is a frequency band that forms a dual-card dual-pass DSDA frequency band combination with the operating frequency band of the second communication card; and when a first suitable cell is found, perform a camping operation of the first communication card in the first suitable cell.

[0111] Using the above technical solution, for the terminal without a service card (i.e., the first communication card), cell search is performed in the first candidate frequency band that forms a DSDA frequency band combination with the working frequency band of the service card (i.e., the second communication card). This is done so that the terminal can work in DSDA state and realize the dual-SIM dual-standby dual-pass function of the terminal.

[0112] In some embodiments, the processing unit 401 is further configured to, when the first suitable cell is not found and the second communication card is in a non-call state, perform a cell search operation using the applied second radio frequency resources through the radio resource control layer in at least one second candidate frequency band of the first communication card; wherein the second candidate frequency band is a frequency band that does not form a DSDA frequency band combination with the operating frequency band of the second communication card; and when the second suitable cell is found, perform a camping operation of the first communication card in the second suitable cell.

[0113] In some embodiments, the processing unit 401 is further configured to receive a dual-SIM service status sent by the radio frequency control layer through the radio resource control layer; wherein the dual-SIM service status is used to indicate whether the first communication card and the second communication card have service;

[0114] The radio resource control layer receives the dual-SIM call status sent by the non-access layer; wherein, the dual-SIM call status is used to indicate whether the first communication card and the second communication card are in a call.

[0115] In some embodiments, the processing unit 401 is further configured to send a radio frequency resource request to the radio frequency control layer through the radio resource control layer;

[0116] The radio resource control layer receives the idle radio resource returned by the radio frequency control layer in response to the radio frequency resource request; and uses the idle radio resource as the first radio frequency resource.

[0117] In some embodiments, the processing unit 401 is further configured to determine at least one candidate cell that meets the camping conditions from at least one cell found in the search.

[0118] The candidate cell with the strongest signal strength among the at least one candidate cells is selected as the first suitable cell.

[0119] In some embodiments, the processing unit 401 is further configured to measure the signal quality of the at least one cell and obtain a signal quality measurement index for the at least one cell; wherein the signal quality measurement index includes at least a reference signal received power and a reference signal received quality;

[0120] The dwell conditions include: the reference signal received power is greater than the received power threshold, and the reference signal received quality is greater than the received quality threshold.

[0121] In some embodiments, the processing unit 401 is further configured to send indication information including the identification information of the first suitable cell to the non-access layer through the radio resource control layer;

[0122] The non-access layer generates a network access request for the first communication card in the first suitable cell based on the indication information;

[0123] The network registration request is sent to the network device via the non-access layer, the radio resource control layer, and the radio frequency control layer. The network registration request is used to instruct the network device to complete the network registration of the first communication card in the first suitable cell.

[0124] This application also provides another terminal. Figure 5 This is a schematic diagram of the terminal composition structure in an embodiment of this application, such as... Figure 5 As shown, the terminal 50 includes: a processor 501 and a memory 502 configured to store computer programs capable of running on the processor;

[0125] When the processor 501 is configured to run a computer program, it executes the method steps described in the foregoing embodiments.

[0126] Of course, in practical applications, such as Figure 5 As shown, the various components in terminal 50 are coupled together via bus system 503. It can be understood that bus system 503 is used to implement communication between these components. In addition to a data bus, bus system 503 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 5 The general designated all buses as Bus System 503.

[0127] In practical applications, the aforementioned processor can be at least one of the following: Application-Specific Integrated Circuit (ASIC), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), controller, microcontroller, and microprocessor. It is understood that, for different devices, the electronic devices used to implement the functions of the aforementioned processor can also be other types, and the embodiments of this application do not specifically limit them.

[0128] The aforementioned memory can be volatile memory, such as random-access memory (RAM); or non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); or a combination of the above types of memory, and provides instructions and data to the processor.

[0129] In an exemplary embodiment, this application also provides a computer-readable storage medium for storing a computer program.

[0130] Optionally, the computer-readable storage medium can be applied to any of the methods in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the processor in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0131] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0132] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0133] Furthermore, in the various embodiments of the present invention, all functional units can be integrated into one processing module, or each unit can be a separate unit, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in a combination of hardware and software functional units. Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0134] The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0135] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0136] The features disclosed in the several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0137] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A terminal communication method for dual-SIM dual-standby dual-pass devices, characterized in that, The method includes: When the first communication card of the terminal has no service and the second communication card has service, the terminal uses the first radio frequency resources applied for by the radio resource control layer to perform a cell search operation in at least one first candidate frequency band of the first communication card; wherein, the first candidate frequency band is a frequency band that forms a dual-card dual-pass DSDA frequency band combination with the operating frequency band of the second communication card. If a first suitable cell is found, the first communication card is allowed to remain in the first suitable cell. It also includes: when the first suitable cell is not found and the second communication card is in a non-call state, performing a cell search operation using the applied second radio frequency resources through the radio resource control layer in at least one second candidate frequency band of the first communication card; wherein the second candidate frequency band is a frequency band that does not form a DSDA frequency band combination with the operating frequency band of the second communication card; and when the second suitable cell is found, performing a camping operation of the first communication card in the second suitable cell.

2. The method according to claim 1, characterized in that, Also includes: The radio resource control layer receives the dual-SIM service status sent by the radio frequency control layer; wherein, the dual-SIM service status is used to indicate whether the first communication card and the second communication card have service; The radio resource control layer receives the dual-SIM call status sent by the non-access layer; wherein, the dual-SIM call status is used to indicate whether the first communication card and the second communication card are in a call.

3. The method according to claim 1, characterized in that, Also includes: The radio resource control layer sends a radio frequency resource request to the radio frequency control layer. The radio resource control layer receives the idle radio resource returned by the radio frequency control layer in response to the radio frequency resource request; The idle radio frequency resources are used as the first radio frequency resources.

4. The method according to claim 1, characterized in that, After performing the cell search operation, the method further includes: Identify at least one candidate cell that meets the residency criteria from at least one cell found in the search; The candidate cell with the strongest signal strength among the at least one candidate cells is selected as the first suitable cell.

5. The method according to claim 4, characterized in that, The step of determining at least one candidate cell that meets the dwell conditions from at least one searched cell includes: The signal quality of the at least one cell is measured to obtain a signal quality metric for the at least one cell; wherein the signal quality metric includes at least a reference signal received power and a reference signal received quality; The dwell conditions include: the reference signal received power is greater than the received power threshold, and the reference signal received quality is greater than the received quality threshold.

6. The method according to claim 1, characterized in that, The step of performing the first communication card's camping operation in the first suitable cell includes: The radio resource control layer sends an indication message, including the identification information of the first suitable cell, to the non-access layer. The non-access layer generates a network access request for the first communication card in the first suitable cell based on the indication information; The network registration request is sent to the network device via the non-access layer, the radio resource control layer, and the radio frequency control layer. The network registration request is used to instruct the network device to complete the network registration of the first communication card in the first suitable cell.

7. A dual-SIM dual-standby dual-pass terminal communication device, characterized in that, The device includes: The processing unit is configured to, when the first communication card of the terminal is not serving and the second communication card is serving, perform a cell search operation using the requested first radio frequency resources through the radio resource control layer in at least one first candidate frequency band of the first communication card; wherein the first candidate frequency band is a frequency band that forms a dual-card dual-pass DSDA frequency band combination with the operating frequency band of the second communication card; and, if a first suitable cell is found, perform a camping operation of the first communication card in the first suitable cell; The processing unit is further configured to, when the first suitable cell is not found and the second communication card is in a non-call state, use the applied second radio frequency resources through the radio resource control layer to perform a cell search operation in at least one second candidate frequency band of the first communication card; wherein the second candidate frequency band is a frequency band that does not form a DSDA frequency band combination with the operating frequency band of the second communication card; and when the second suitable cell is found, execute a camping operation of the first communication card in the second suitable cell.

8. A terminal, characterized in that, The terminal electronic device includes: a processor and a memory configured to store computer programs capable of running on the processor. Wherein, when the processor is configured to run the computer program, it performs the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6.

Images