CN107027156B - Method and terminal equipment for sending voice frame - Google Patents
Method and terminal equipment for sending voice frame Download PDFInfo
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- CN107027156B CN107027156B CN201610067911.5A CN201610067911A CN107027156B CN 107027156 B CN107027156 B CN 107027156B CN 201610067911 A CN201610067911 A CN 201610067911A CN 107027156 B CN107027156 B CN 107027156B
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Abstract
The invention relates to the technical field of wireless communication, in particular to a method for sending a voice frame and a terminal device, which are used for improving the possibility that a target cell can receive the voice frame sent by the terminal device, and the method comprises the following steps: after receiving a switching command sent by a source cell, a terminal device sends a request for establishing a physical layer link to a target cell, receives configuration information fed back by the target cell in response to the request for establishing the physical layer link, and establishes the physical layer link with the target cell according to the configuration information; and after the physical layer link is established, sending a response of the physical layer link establishment completion to the target cell, sending a request of establishing a data link layer link to the target cell, and then sending at least one voice frame to the target cell. In the technical scheme, the terminal equipment sends the voice frame to the target cell after sending the response of the completion of the establishment of the physical layer link to the target cell, so that the possibility of receiving the voice frame by the target cell is improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and a terminal device for transmitting a voice frame.
Background
At present, in a GSM (Global System for Mobile communications) voice call, a DTX (Discontinuous Transmission) technique is a very important technique. The principle of the DTX technique is as follows: in a Voice call, when a VAD (Voice activity detector) module of a terminal device at a local end detects that a user currently using the terminal device is in a silent state, the sending of an uplink Voice frame of the terminal device is closed. However, this may cause that the terminal device at the opposite end does not play any effective sound during the period when the terminal device is in the silent state, so that the user at the opposite end mistakenly thinks that the call is interrupted, and the user experience is reduced. Therefore, a SID (Silence Descriptor) UPDATE frame carrying related background noise DATA is introduced in the DTX technology, specifically, when the local terminal device monitors that the terminal device is in a Silence state, a SID UPDATE frame is sent to the opposite terminal device every 7 NODATA frames, and when the opposite terminal device receives the SID UPDATE frame, a small background noise carried in the SID UPDATE frame is played, so that a user using the opposite terminal device knows that the user using the local terminal device is in the Silence state and does not hang up, where the NO DATA frame does not carry DATA.
When the terminal device is handed over from the source cell to the target cell, the target cell wants to be able to acquire uplink DATA sent by the terminal device, and since the terminal device may be in a DTX state when being handed over to the target cell immediately after starting the uplink DTX function, that is, an SID UPDATE frame is sent every 7 NO DATA frames, it is possible that the target cell cannot receive the uplink DATA sent by the terminal device after the terminal device is handed over from the source cell to the target cell, and the target cell may consider that the terminal device is in an offline state, thereby disconnecting a link established with the terminal device and causing call interruption.
In order to enable The target cell to receive uplink data sent by The terminal device, The 3GPP (The 3rd generation Partnership Project) protocol 06.93 specifies that: when the terminal equipment is switched from the source cell to the target cell, even if the terminal equipment turns on the uplink DTX, the terminal equipment continuously transmits SID UPDATE frames within the specific time duration, and does not transmit NO DATA frames, wherein the specific time duration is 240ms (millisecond).
However, since the process of the terminal device switching from the source cell to the target cell includes two phases, i.e. a physical layer link establishment phase and a data link layer link establishment phase, in a case of a worse network condition, the duration of the physical layer link establishment phase may reach 600ms or even 800ms, and the base station can only receive uplink data sent by the terminal device after the physical layer link establishment phase and the data link layer link establishment phase are completed, and measure the signal of the terminal device to ensure that the terminal device can normally communicate in the target cell, however, in the prior art, during the process of switching from the source cell to the target cell, the terminal device starts to send SID UPDATE frame for 240ms in the physical layer link establishment phase, and after the data link layer link establishment phase is completed, it is possible that the terminal device is in DTX state again, therefore, the terminal equipment cannot receive uplink data sent by the terminal equipment after being switched from the source cell to the target cell, and the possibility of abnormity occurring when the uplink of the base station where the terminal equipment and the target cell are located is established is increased.
Disclosure of Invention
The invention provides a method for sending voice frames and terminal equipment, which are used for improving the possibility that a target cell can receive voice frames sent by the terminal equipment after the terminal equipment is switched from a source cell to the target cell in an uplink DTX (discontinuous transmission) state in the conversation process, and reducing the possibility that the communication of the terminal equipment is interrupted because a link established between the terminal equipment and the target cell is abnormal because the target cell cannot receive the uplink voice frames sent by the terminal equipment.
In a first aspect, a method for sending a speech frame is provided, where the method is applied to a terminal device, the terminal device currently resides in a source cell, and the terminal device is in a call process and an uplink Discontinuous Transmission (DTX) state, and the method includes: the terminal equipment receives a switching command sent by the source cell; the terminal equipment sends a request for establishing a physical layer link to the target cell according to the switching command; the terminal equipment receives configuration information fed back by the target cell in response to the establishment request of the physical layer link; the terminal equipment establishes a physical layer link with the target cell according to the configuration information; after the physical layer link is established, sending a response of the physical layer link establishment completion to the target cell and sending a request of establishing a data link layer link to the target cell; and the terminal equipment sends at least one voice frame to the target cell.
When the terminal equipment is in a call process and in an uplink DTX state, at least one voice frame is sent to the target cell after the terminal equipment sends a response of completing establishment of a physical layer link to the target cell and sends an establishment request of a data link layer to the target cell, so that the possibility that the target cell receives uplink data sent by the terminal equipment after the terminal equipment is switched from the source cell to the target cell is improved, and the possibility that the link established between the terminal equipment and the target cell is abnormal due to the fact that the target cell cannot receive the uplink data sent by the terminal equipment after the terminal equipment is switched from the source cell to the target cell is reduced.
On the basis of the first aspect, optionally, the sending, by the terminal device, at least one voice frame to the target cell within a preset time duration includes: and the terminal equipment sends at least one voice frame to the target cell within a first preset time length after sending a response of completing the establishment of the physical layer link to the target cell, wherein the first preset time length is longer than the time length required for establishing the data link layer link.
The first preset time length is longer than the time length required for establishing the data link layer link, so that the possibility that the target cell receives the voice frame sent by the terminal equipment after the terminal equipment is switched to the target cell is further improved.
On the basis of the first aspect, optionally, the sending, by the terminal device, at least one voice frame to the target cell within the first preset time duration includes: and in the first preset duration, the terminal equipment closes discontinuous transmission DTX of the uplink and continuously transmits a plurality of voice frames to the target cell.
Because the first preset time length is longer than the time length required for establishing the data link layer link, and after the response of the physical layer link establishment completion is sent to the target cell, a plurality of voice frames are continuously sent to the target cell within the first preset time length, the target cell is ensured to receive the voice frames sent by the terminal equipment after the response of the data link layer link establishment request is sent to the terminal equipment by the target cell, namely the terminal equipment is switched from the source cell to the target cell, and the terminal equipment is ensured to normally work in the target cell.
On the basis of the first aspect, optionally, the sending, by the terminal device, at least one voice frame to the target cell within the first preset time duration includes: the terminal equipment intermittently transmits a plurality of voice frames within the first preset time length, wherein a second preset time length is arranged between the transmitting time corresponding to at least two voice frames, and the second preset time length is smaller than the first preset time length; or, the terminal device sends at least one voice frame to the target cell within the first preset time after a third preset time, where the third preset time is shorter than the first preset time.
The second preset time is less than the first preset time, the first preset time is longer than the time required for establishing the data link layer link, the terminal equipment sends at least one voice frame to the target cell every second preset time within the first preset time, and the frequency of sending the voice frame to the target cell is improved, so that the possibility of receiving the voice frame sent by the terminal equipment after the target cell sends the response of the establishment request of the data link layer link is improved, and the probability of normal communication after the terminal equipment is switched from the source cell to the target cell is further improved; the third preset time is set in the first preset time, so that the situation that the target cell cannot receive the voice frame sent by the terminal equipment to the target cell within the third preset time is avoided.
On the basis of the first aspect, optionally, the first preset time duration is a frame length of 12 speech frames.
Since the first preset duration is set to the frame length of 12 speech frames, modification of the existing protocol in terms of duration is avoided.
On the basis of the first aspect, optionally, after the terminal device sends the voice frame to the target cell, the method further includes: the terminal equipment receives a response of a request for establishing a data link layer link sent by the target cell; the terminal equipment determines that the establishment of the data link layer link is finished according to the response of the establishment request of the data link layer link sent by the target cell; the terminal equipment receives system information issued by the target cell; the terminal equipment judges whether to start uplink DTX according to uplink DTX state parameters configured in system messages issued by the target cell; if the terminal equipment determines that the uplink DTX state parameter indicates to start uplink DTX, starting the uplink DTX; and if the uplink DTX state parameter is determined to indicate that the uplink DTX is closed, keeping closing the uplink DTX.
After being switched to the target cell, the terminal equipment can judge whether to start uplink DTX according to the uplink DTX state parameter configured in the system message issued by the target cell, so that the uplink DTX of the terminal equipment can be synchronized with the uplink DTX configured by the target cell.
In a second aspect, a terminal device is provided, which includes: a receiver, a transmitter, and a processor, the receiver and the transmitter being respectively coupled to the processor;
the receiver is used for receiving a switching command sent by a source cell; the processor is configured to send a request for establishing a physical layer link to the target cell through the transmitter according to the handover command; the processor is further configured to receive, by the receiver, configuration information fed back by the target cell in response to the request for establishing the physical layer link after sending the request for establishing the physical layer link; the processor is further configured to establish a physical layer link with the target cell according to the configuration information; after the physical layer link is established, sending a response of the physical layer link establishment completion to the target cell and sending a request of establishing a data link layer link to the target cell through the transmitter; the processor is further configured to send, by the transmitter, at least one voice frame to the target cell after sending a response to the target cell that the physical layer link establishment is complete.
After the processor of the terminal equipment sends a response of completing physical layer link establishment to the target cell and sends a request of establishing a data link layer to the target cell, at least one voice frame is sent to the target cell through the transmitter, so that the possibility that the target cell receives uplink data is improved, and the possibility that the link established between the terminal equipment and the target cell is abnormal due to the fact that the target cell cannot receive the uplink data sent by the terminal equipment after the terminal equipment is switched from the source cell to the target cell is reduced.
On the basis of the second aspect, optionally, the processor is configured to: and sending at least one voice frame to the target cell within a first preset time length after a response of completing physical layer link establishment is sent to the target cell through the transmitter, wherein the first preset time length is longer than the time length required for establishing the data link layer link.
The first preset time length is longer than the time length required for establishing the data link layer link, so that the possibility that the target cell receives the voice frame sent by the processor through the transmitter after the terminal equipment is switched to the target cell is further improved.
On the basis of the second aspect, optionally, the processor includes: a DTX processor; the DTX processor is configured to receive indication information sent by the transmitter after sending a response of completing establishment of a physical layer link to the target cell through the transmitter, where the indication information is used to indicate that DTX is discontinuously sent in uplink within a first preset duration; according to the received indication information, closing the uplink DTX within the first preset duration; and continuously transmits a plurality of voice frames through the transmitter.
Because the first preset time length is longer than the time length required for establishing the data link layer link, and after the DTX processor is used for sending a response of completing establishment of the physical layer link to the target cell through the transmitter, the DTX is closed, and a plurality of voice frames are continuously sent to the target cell within the first preset time length, the target cell can receive the voice frames sent by the terminal device after the target cell sends the response of the establishment request of the data link layer link to the terminal device, namely after the terminal device is switched from the source cell to the target cell, thereby ensuring that the terminal device can normally work in the target cell.
On the basis of the second aspect, optionally, the processor is configured to: intermittently transmitting a plurality of voice frames within the first preset time length through the transmitter, wherein a second preset time length is arranged between the transmitting time corresponding to at least two voice frames, and the second preset time length is smaller than the first preset time length; or, within the first preset time, after a third preset time, sending at least one voice frame to the target cell through the transmitter, where the third preset time is shorter than the first preset time.
The second preset time is less than the first preset time, the first preset time is longer than the time required for establishing the data link layer link, the terminal equipment sends at least one voice frame to the target cell every second preset time within the first preset time, and the frequency of sending the voice frame to the target cell is improved, so that the possibility of receiving the voice frame sent by the terminal equipment after the target cell sends the response of the establishment request of the data link layer link is improved, and the probability of normal communication after the terminal equipment is switched from the source cell to the target cell is further improved; the third preset time is set in the first preset time, so that the situation that the target cell cannot receive the voice frame sent by the terminal equipment to the target cell within the third preset time is avoided.
On the basis of the second aspect, optionally, the first preset time duration is a frame length of 12 speech frames.
Since the first preset duration is set to the frame length of 12 speech frames, modification of the existing protocol in terms of duration is avoided.
On the basis of the second aspect, optionally, the processor is further configured to: after sending the voice frame to the target cell through the transmitter, receiving a response of a data link layer link establishment request sent by the target cell through the receiver; determining that the establishment of the data link layer link is finished according to the response of the establishment request of the data link layer link sent by the target cell; receiving system information issued by the target cell through the receiver; judging whether to start uplink DTX according to uplink DTX state parameters configured in system messages issued by the target cell; if the uplink DTX state parameter is determined to indicate that the uplink DTX is started, starting the uplink DTX; and if the uplink DTX state parameter is determined to indicate that the uplink DTX is closed, keeping closing the uplink DTX.
After the terminal equipment is switched to the target cell, the processor of the terminal equipment can judge whether to start the uplink DTX according to the uplink DTX state parameter configured in the system message issued by the target cell, so that the uplink DTX of the terminal equipment can be synchronized with the uplink DTX configured by the target cell.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for transmitting a voice frame according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a hardware structure of a DTX processor according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the technical solution of the present invention may be applied to a terminal device, where the terminal device may also be referred to as a UE (User Equipment), a wireless terminal or a mobile terminal, and may specifically include product forms such as a smart phone, a tablet, a palm computer, and a notebook.
The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.
The embodiment of the present invention may be applied to a Global System for Mobile communications (GSM), and an application scenario thereof is shown in fig. 1, where a first user equipment (abbreviated as UE1) and a second user equipment (abbreviated as UE2) are in a call process, the UE1 starts uplink DTX, the UE1 is in an uplink DTX state, and the UE1 currently resides in a source cell.
It should be noted that the UE1 turning on uplink DTX means that when the UE1 detects that a user using the UE1 is in a silence state, the UE1 is in an uplink DTX state, that is, the UE1 sends one SID UPDATE frame to the UE2 every 7 NO DATA frames.
In order to ensure that the UE1 improves the possibility that the target cell can receive an uplink speech frame (i.e., a speech frame) sent by the UE1 after being handed over from the source cell to the target cell, as shown in fig. 2, a method for sending a speech frame according to an embodiment of the present invention is applied to the UE, and includes:
step 200, the source cell sends a Handover Command (Handover Command) to the UE1 for Handover to the target cell;
in step 201, after receiving the Handover command sent by the source cell, the UE1 releases the link with the target cell, and sends a request for establishing a physical layer link (Handover Access) to the target cell according to the Handover command.
In step 202, after receiving the request for establishing the physical layer link, the target cell sends configuration information (e.g., a reference timing advance between the source cell and the target cell) responding to the request for establishing the physical layer link to the UE 1.
Step 203, after receiving the configuration information, the UE1 establishes a physical layer link with the target cell according to the configuration information; and after the physical layer link is established, sending a response (Handover Complete) of the physical layer link establishment completion to the target cell, and sending a request for establishing the data link layer link to the target cell.
Wherein, the request for establishing the data link layer link is sent through an SABM (Set asynchronous balanced Mode) frame.
At step 204, the UE1 sends at least one speech frame to the target cell.
In step 205, the target cell sends a response to the UE1 for the request for establishing the data link layer link after receiving the request for establishing the data link layer link.
Wherein the response of the establishment request of the data link layer link is transmitted through a UA (unnumbered acknowledge) frame.
In step 206, the UE1 determines that the establishment of the data link layer link is completed according to the response of the request for establishing the data link layer link sent by the target cell.
In step 207, the UE1 receives the system information sent by the target cell.
Step 208, the UE1 determines whether to start uplink DTX according to the uplink DTX state parameter configured in the system message delivered by the target cell, if the UE1 determines that the uplink DTX state parameter indicates to start uplink DTX, step 209 is executed, and if the UE determines that the uplink DTX state parameter indicates to close uplink DTX, step 210 is executed.
In step 209, the UE1 turns on uplink DTX.
In step 210, the UE1 turns off the uplink DTX.
Wherein, steps 200 to 203 are physical layer link establishment phases, and steps 203, 205 and 206 are data link layer link establishment phases.
In step 204, the UE1 sends at least one speech frame to the target cell, where the speech frame may be a speech frame preset in the UE1, or a speech frame generated by the UE1 according to speech data or noise data input to the UE 1.
In this embodiment, it should be noted that, the above-mentioned commands are, for example: the Handover Command, Handover access, Handover Complete, etc. are defined in the existing 3GPP protocol, and are not described in detail herein, for example, refer to the expression in the existing protocol.
An alternative implementation of the UE1 sending at least one speech frame to the target cell is:
the UE1 sends at least one voice frame to the target cell within a first preset time duration after sending a response to the target cell that the physical layer link establishment is completed, where the first preset time duration is longer than a time duration required for establishing a data link layer link.
Since the first preset time duration is longer than the time duration required for establishing the data link layer link, the possibility that the target cell receives the voice frame sent by the UE1 after the UE1 is handed over to the target cell is further improved.
To ensure that the target cell receives the voice frames sent by the UE1 after the UE1 is handed over to the target cell, optionally, the UE1 turns off the uplink DTX and continuously sends multiple voice frames to the target cell for a first preset duration, where the first preset duration is longer than a duration required for establishing a data link layer link.
That is, after sending a response of completing establishment of the physical layer link to the target cell, the UE1 turns off the uplink DTX and starts to continuously send a speech frame with a first preset duration to the target cell, where the duration of turning off the uplink DTX is the first preset duration.
Because the first preset duration is longer than the duration required for establishing the data link layer link, and after the response of completing establishment of the physical layer link is sent to the target cell, the target cell continuously sends a plurality of voice frames within the first preset duration, it is ensured that the target cell can receive the voice frames sent by the UE1 after the target cell sends the response of the request for establishing the data link layer link to the UE1, that is, after the UE1 is switched from the source cell to the target cell, thereby ensuring that the UE1 can normally operate in the target cell.
Since the UE1 turns off the uplink DTX, i.e., VAD (Voice Activity Detector) function is disabled, i.e., the UE1 cannot detect whether the user using the UE1 is in a silent state, and the transmitter in the UE1 is always in an on state, the UE1 can continuously transmit Voice frames to the target cell.
Specifically, when a user using the UE1 is in a silent state, the UE1 generates a speech frame from input noise data, and when a user using the UE1 has speech data input to the UE1, the UE1 generates a speech frame from the speech data input by the user.
In order to reduce the modification of the existing protocol, preferably, the first preset duration is the frame length of 12 voice frames, it should be noted that, for the requirements of different protocols, the first preset duration may be correspondingly changed, and is not limited to the frame length of 12 voice frames.
It should be understood that if the UE1 continuously transmits voice frames within a time period of 12 voice frame length, the UE1 continuously transmits 12 voice frames to the target cell.
Wherein, the UE1 sends at least one speech frame to the target cell, and another optional implementation manner is:
the UE1 discontinues sending multiple voice frames within a first preset time period, where at least two voice frames have a second preset time period between their corresponding sending times, and the second preset time period is less than the first preset time period.
It should be understood that the above implementation can be applied to a user using the UE1 in a silent state and the VAD function in an on state, and preferably, the second preset duration is less than the frame length of 7 voice frames.
Since the target cell cannot receive the voice frame sent by the UE1 to the target cell during the response period of sending the request for establishing the data link layer link to the UE1 after the UE1 sends the request for establishing the data link layer link to the target cell, the target cell sends the voice frame to the UE1 for a second preset time period that is shorter than the first preset time period, which is longer than the time period required for establishing the data link layer link, the UE1 sends at least one voice frame to the target cell every second preset time period within the first preset time period, so as to increase the frequency of sending the voice frame to the target cell, thereby increasing the possibility that the voice frame sent by the UE1 is received after the response of sending the request for establishing the data link layer link by the target cell, and further increasing the probability that the UE1 will normally communicate after being switched from the source cell to the target cell.
In addition, the UE1 sends at least one voice frame to the target cell after a third preset duration within the first preset duration, where the third preset duration is less than the first preset duration.
Preferably, the third preset time duration is not greater than the time duration between the response of the target cell sending the request for establishing the data link layer link to the UE1 after the UE1 sends the request for establishing the data link layer link to the target cell, so as to avoid that the target cell cannot receive the voice frame sent by the UE1 to the target cell within the third preset time duration.
In addition, because the voice frame is sent to the target cell in the embodiment of the invention, compared with the sending of the SIDUPDATE frame in the prior art, the problem that equipment of the target cell is possibly incompatible with the SIDUPDATE frame is avoided.
Based on the same inventive concept, the embodiment of the present invention further provides a terminal device, and since the method corresponding to the terminal device is the method for sending the voice frame provided by the embodiment of the present invention, the terminal device provided by the embodiment of the present invention may refer to the embodiment of the method, and repeated details are not repeated.
As shown in fig. 3, a terminal device provided in an embodiment of the present invention includes: the receiver 300, the transmitter 301, the processor 302, the receiver 300 and the transmitter 301 are respectively coupled to the processor 302, and further include a memory 303 for storing programs/codes pre-installed in the factory of the device, or codes and the like for the processor 302 to execute, and an antenna 304, wherein the receiver 300 receives signals through the antenna 304, and the transmitter 301 transmits signals through the antenna 304.
The receiver 300 is configured to receive a handover command sent by a source cell;
a processor 302, configured to send a request for establishing a physical layer link to a target cell through the transmitter 301 according to a handover command;
the processor 302 is further configured to, after sending the request for establishing the physical layer link, receive, by the receiver 300, configuration information fed back by the target cell in response to the request for establishing the physical layer link;
the processor 302 is further configured to establish a physical layer link with the target cell according to the configuration information; after the physical layer link is established, a response of the physical layer link establishment completion is sent to the target cell through the transmitter 301, and a request for establishing the data link layer link is sent to the target cell;
the processor 302 is further configured to send at least one speech frame to the target cell via the transmitter 301 after sending a response to the target cell that the physical layer link setup is complete.
The processor 302 may be a general-purpose processor, a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, configured to perform related operations to implement the technical solutions provided by the embodiments of the present invention.
In addition, the receiver 300 and the transmitter 301 may be integrated into the same module, may exist separately physically, or may be integrated into one unit by two or more modules. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
Although the apparatus shown in fig. 3 only shows the processor 302, the receiver 300, the transmitter 301, the processor 302, the memory 303, and the antenna 305, it will be apparent to those skilled in the art that the apparatus may contain other components necessary for proper operation in a particular implementation. Also, it will be apparent to those skilled in the art that the apparatus may also contain hardware components to perform other additional functions, according to particular needs. Furthermore, those skilled in the art will appreciate that the apparatus may also contain only those devices or modules necessary to implement embodiments of the present invention, and need not contain all of the devices shown in FIG. 3.
Optionally, the processor 302 is configured to:
and sending at least one voice frame to the target cell within a first preset time length after a response of completing physical layer link establishment is sent to the target cell through the transmitter 301, wherein the first preset time length is longer than the time length required for establishing a data link layer link.
Optionally, the processor 302 includes: a DTX processor 3020;
the DTX processor 3020 is configured to receive, after sending a response that physical layer link establishment is completed to the target cell through the transmitter 301, indication information sent by the transmitter 301, where the indication information is used to indicate that uplink discontinuous transmission DTX is turned off within a first preset duration; according to the received indication information, closing the uplink DTX within a first preset time length; and continuously transmits a plurality of voice frames through the transmitter 301.
The DTX processor may send the indication information through NSYNC, for example, when NSYNC is 12, the DTX processor instructs to turn off the uplink discontinuous transmission, and the duration of the DTX is the frame length of 12 speech frames.
In addition, the DTX processor may be implemented by TX DTX Handler (TX discontinuous transmission Handler).
The hardware structure diagram of the DTX processor, as shown in fig. 4, includes a speech encoder 400 (defined in the GSM06.10 specification), a speech activity detector 401 (defined in the GSM 06.32 specification), a sender comfort noise unit 403 (defined in the GSM 06.12 specification), and an uplink DTX controller 404 (defined in the GSM 06.12 specification).
Specifically, when DTX processor 3020 receives indication information such as NSYNC, the function of voice activity detector 401 is disabled, so that when no voice is input, the input background noise obtains a voice frame through voice encoder 400 and sends the voice frame to transmitter 301 through uplink DTX controller 404 within a first preset time period, and when there is voice input within the first preset time period, the input voice obtains a voice frame through voice encoder 400 and sends the voice frame to transmitter 301 through uplink DTX controller 404.
It should be understood that Tx/Rx represents an abbreviation for transmit/receive in telecommunication terminology.
Optionally, the processor 302 is configured to:
intermittently transmitting a plurality of voice frames within a first preset time period through a transmitter 301, wherein a second preset time period is arranged between the transmission times corresponding to at least two voice frames, and the second preset time period is less than the first preset time period; alternatively, the first and second electrodes may be,
within the first preset time period, after a third preset time period, at least one voice frame is sent to the target cell through the transmitter 301, where the third preset time period is less than the first preset time period.
Optionally, the preset duration is a frame length of 12 speech frames.
Optionally, the processor 302 is further configured to:
after transmitting the voice frame to the target cell through the transmitter 301, receiving a response of the establishment request of the data link layer link transmitted by the target cell through the receiver 300; determining that the establishment of the data link layer link is finished according to the response of the establishment request of the data link layer link sent by the target cell; receiving system information issued by a target cell through a receiver 300; judging whether to start uplink DTX according to uplink DTX state parameters configured in system messages issued by the target cell; if the uplink DTX state parameter is determined to indicate that the uplink DTX is started, starting the uplink DTX; and if the uplink DTX state parameter indicates to close the uplink DTX, keeping closing the uplink DTX.
From the above, it can be seen that: the UE currently resides in a source cell and is in a conversation process and an uplink Discontinuous Transmission (DTX) state, and the UE receives a switching command which is sent by the source cell and is switched to a target cell; after receiving the switching command, sending a request for establishing a physical layer link to a target cell; receiving configuration information fed back by a target cell in response to a physical layer link establishment request; and establishing a physical layer link with the target cell according to the configuration information; after the physical layer link is established, sending a response of the physical layer link establishment completion to the target cell and sending a request of establishing a data link layer link to the target cell; and after a response of completing the establishment of the physical layer link is sent to the target cell and a request of establishing the data link layer link is sent to the target cell, at least one voice frame is sent to the target cell. According to the technical scheme, when the UE is in a call process and in an uplink DTX state, after the UE sends a response of completing establishment of a physical layer link to the target cell and sends an establishment request of a data link layer to the target cell, at least one voice frame is sent to the target cell, the possibility that the target cell receives the uplink data sent by the UE after the UE is switched from the source cell to the target cell is improved, and therefore the possibility that the link established between the UE and the target cell is abnormal due to the fact that the target cell cannot receive the uplink data sent by the UE after the UE is switched from the source cell to the target cell is reduced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (14)
1. A method for sending voice frame is applied to a terminal device, wherein the terminal device currently resides in a source cell, and the terminal device is in a call process and an uplink Discontinuous Transmission (DTX) state, and the method comprises:
the terminal equipment receives a switching command sent by the source cell;
the terminal equipment sends a request for establishing a physical layer link to a target cell according to the switching command;
the terminal equipment receives configuration information fed back by the target cell in response to the establishment request of the physical layer link;
the terminal equipment establishes a physical layer link with the target cell according to the configuration information; after the physical layer link is established, sending a response of the physical layer link establishment completion to the target cell and sending a request of establishing a data link layer link to the target cell;
and the terminal equipment sends at least one voice frame to the target cell.
2. The method of claim 1, wherein the terminal device sends at least one voice frame to the target cell within a preset time duration, comprising:
and the terminal equipment sends at least one voice frame to the target cell within a first preset time length after sending a response of completing the establishment of the physical layer link to the target cell, wherein the first preset time length is longer than the time length required for establishing the data link layer link.
3. The method of claim 2, wherein the terminal device transmitting at least one speech frame to the target cell within the first preset time period comprises:
and in the first preset duration, the terminal equipment closes discontinuous transmission DTX of the uplink and continuously transmits a plurality of voice frames to the target cell.
4. The method of claim 2, wherein the terminal device transmitting at least one speech frame to the target cell within the first preset time period comprises:
the terminal equipment intermittently transmits a plurality of voice frames within the first preset time length, wherein a second preset time length is arranged between the transmitting time corresponding to at least two voice frames, and the second preset time length is smaller than the first preset time length; alternatively, the first and second electrodes may be,
and the terminal equipment sends at least one voice frame to the target cell after a third preset time within the first preset time, wherein the third preset time is less than the first preset time.
5. The method of any of claims 2 to 4, wherein the first preset duration is a frame length of 12 speech frames.
6. The method of any of claims 1 to 4, wherein after the terminal device sends a speech frame to the target cell, further comprising:
the terminal equipment receives a response of a request for establishing a data link layer link sent by the target cell;
the terminal equipment determines that the establishment of the data link layer link is finished according to the response of the establishment request of the data link layer link sent by the target cell;
the terminal equipment receives system information issued by the target cell;
the terminal equipment judges whether to start uplink DTX according to uplink DTX state parameters configured in system messages issued by the target cell;
if the terminal equipment determines that the uplink DTX state parameter indicates to start uplink DTX, starting the uplink DTX; and if the uplink DTX state parameter is determined to indicate that the uplink DTX is closed, keeping closing the uplink DTX.
7. A terminal device, comprising: a receiver, a transmitter, and a processor, the receiver and the transmitter being respectively coupled to the processor;
the receiver is used for receiving a switching command sent by a source cell;
the processor is used for sending a request for establishing a physical layer link to a target cell through the transmitter according to the switching command;
the processor is further configured to receive, by the receiver, configuration information fed back by the target cell in response to the request for establishing the physical layer link after sending the request for establishing the physical layer link;
the processor is further configured to establish a physical layer link with the target cell according to the configuration information; after the physical layer link is established, sending a response of the physical layer link establishment completion to the target cell and sending a request of establishing a data link layer link to the target cell through the transmitter;
the processor is further configured to send, by the transmitter, at least one voice frame to the target cell after sending a response to the target cell that the physical layer link establishment is complete.
8. The device of claim 7, wherein the processor is to:
and sending at least one voice frame to the target cell within a first preset time length after a response of completing physical layer link establishment is sent to the target cell through the transmitter, wherein the first preset time length is longer than the time length required for establishing the data link layer link.
9. The device of claim 8, wherein the processor comprises: a DTX processor;
the DTX processor is configured to receive indication information sent by the transmitter after sending a response of completing establishment of a physical layer link to the target cell through the transmitter, where the indication information is used to indicate that DTX is discontinuously sent in uplink within a first preset duration; according to the received indication information, closing the uplink DTX within the first preset duration; and continuously transmits a plurality of voice frames through the transmitter.
10. The device of claim 8, wherein the processor is to:
intermittently transmitting a plurality of voice frames within the first preset time length through the transmitter, wherein a second preset time length is arranged between the transmitting time corresponding to at least two voice frames, and the second preset time length is smaller than the first preset time length; alternatively, the first and second electrodes may be,
and within the first preset time, after a third preset time, sending at least one voice frame to the target cell through the transmitter, wherein the third preset time is less than the first preset time.
11. The apparatus according to any of claims 8 to 10, wherein the first preset duration is a frame length of 12 speech frames.
12. The device of any of claims 7 to 10, wherein the processor is further configured to:
after sending the voice frame to the target cell through the transmitter, receiving a response of a data link layer link establishment request sent by the target cell through the receiver; determining that the establishment of the data link layer link is finished according to the response of the establishment request of the data link layer link sent by the target cell; receiving system information issued by the target cell through the receiver; judging whether to start uplink DTX according to uplink DTX state parameters configured in system messages issued by the target cell; if the uplink DTX state parameter is determined to indicate that the uplink DTX is started, starting the uplink DTX; and if the uplink DTX state parameter is determined to indicate that the uplink DTX is closed, keeping closing the uplink DTX.
13. A computer-readable storage medium, in which program instructions are stored, which, when run on a computer, implement the method of any one of claims 1 to 6.
14. An apparatus, characterized in that the apparatus comprises: a memory and a processor; the memory has stored therein program instructions that, when invoked by the processor, implement the method of any one of claims 1 to 6.
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| CN101702712B (en) * | 2009-11-11 | 2014-05-07 | 杭州华三通信技术有限公司 | Detection technology and voice call backup linkage method and device thereof |
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