WO2015014201A1 - 一种语音帧的提前译码方法及网络设备 - Google Patents

一种语音帧的提前译码方法及网络设备 Download PDF

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Publication number
WO2015014201A1
WO2015014201A1 PCT/CN2014/082059 CN2014082059W WO2015014201A1 WO 2015014201 A1 WO2015014201 A1 WO 2015014201A1 CN 2014082059 W CN2014082059 W CN 2014082059W WO 2015014201 A1 WO2015014201 A1 WO 2015014201A1
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Prior art keywords
decoding
voice frame
frame
voice
sending device
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PCT/CN2014/082059
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English (en)
French (fr)
Inventor
胡文权
贺传峰
花梦
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华为技术有限公司
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Publication of WO2015014201A1 publication Critical patent/WO2015014201A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80Responding to QoS

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an early decoding method for voice frames and a network device. Background technique
  • the receiving end of the speech frame may be able to decode the entire speech frame according to the redundant information and the received partial speech data of the speech frame, and therefore, in the speech enhancement scheme One of them is a scheme for decoding a speech frame in advance. After the speech frame is successfully decoded in advance, the receiving end of the speech frame feeds back an acknowledgement (ACK, Acknowledgement) message to the transmitting end of the speech frame to indicate reception. Correctly, the sender of the voice frame stops transmitting the voice frame after receiving the ACK message to save power and reduce interference to other channels.
  • ACK acknowledgement
  • the receiving end of the voice frame is simply referred to as the receiving end, and the transmitting end of the voice frame is simply referred to as the transmitting end
  • the receiving end After receiving the voice data from the transmitting end, the receiving end receives the voice data every 2 milliseconds (ie 2ms) attempts to decode the received voice data.
  • the ACK message is fed back to the transmitting end in the next time slot of the current time slot, and the transmitting end terminates the current voice after receiving the ACK message.
  • the transmission of the frame For example, the downlink transmission of the Wideband Code Division Multiple Access (WCDMA) is used as an example.
  • WCDMA Wideband Code Division Multiple Access
  • the base station ie, the NodeB
  • the base station sends a voice frame to the user equipment (UE, User Equipment).
  • the duration of one voice frame is 20 ms, including 30.
  • the time slot the UE attempts to decode the received voice data every 2ms, assuming that the decoding is successful in the ninth time slot of a voice frame, then in the 10th time slot of the voice frame, in the uplink dedicated physical channel (DPCH, Dedicated Physical Channel)
  • DPCH Downlink dedicated physical channel
  • the NodeB sends an ACK message, and after receiving the ACK message, the NodeB stops the transmission of the voice frame.
  • the foregoing solution can implement early decoding in an ideal channel environment.
  • the reception of the ACK may fail, that is, the above-mentioned transmitting end may continue to receive the ACK fed back by the receiving end.
  • the voice data of the above voice frame is sent to the receiving end, so that the gain after successful decoding in advance is invalid.
  • aspects of the present invention provide a method for early decoding of a voice frame and a related network device, which are used to ensure gain validity after successful decoding in advance.
  • a first aspect of the present invention provides a method for early decoding of a voice frame, including:
  • the partial voice data of the received voice frame is decoded in advance
  • the indication of successful decoding is continued to the transmitting device of the voice frame until the voice frame sent by the sending device of the voice frame is no longer detected.
  • the transmitting device of the voice frame stops transmitting the voice frame after successfully receiving the indication.
  • the foregoing decoding, in advance, the partial voice data of the received voice frame includes:
  • the partial speech data of the received speech frame is decoded, wherein the decoding time interval is represented after the start time slot of the speech frame, and A period of time before the last time slot of the above speech frame.
  • the partial voice of the received voice frame is received.
  • Data is decoded, including:
  • part of the voice data of the received speech frame is decoded every predetermined time interval from the start time point in the above-mentioned decoding time interval until the decoding is successful.
  • the indication that the decoding device is successfully decoded to the transmitting device of the foregoing voice frame includes:
  • the ACK message indicates that the decoding was successful.
  • the indication that the sending device of the foregoing voice frame successfully decodes includes:
  • the transmit power control TPC information is fed back to the transmitting device of the voice frame at a preset time slot position to indicate that the decoding is successful.
  • the TPC information is fed back to the transmitting device of the above speech frame at a plurality of consecutive time slot positions.
  • a sixth possible implementation if the TPC information is fed back to the sending device of the voice frame at an odd slot position before the decoding succeeds, Transmitting the transmission power control to the transmitting device of the above voice frame at a preset time slot position
  • TPC information including:
  • the TPC information is fed back to the transmitting device of the above speech frame at the even slot position.
  • a second aspect of the present invention provides a network device, including:
  • a receiving unit configured to receive partial voice data of a voice frame
  • a decoding unit configured to: in advance, when the receiving unit does not receive all the voice data of the voice frame, to partially decode the partial voice data of the voice frame that has been received by the receiving unit; and the indicating unit is used to perform the foregoing translation.
  • the code unit After successfully decoding the partial voice data of the received voice frame, the code unit continuously performs a decoding success indication to the transmitting device of the voice frame until the voice frame sent by the sending device of the voice frame is no longer detected.
  • the transmitting device of the voice frame stops transmitting the voice frame after successfully receiving the indication.
  • the decoding unit is specifically configured to: perform, on at least one time point in the decoding time interval, part of the voice data of the received voice frame. Decoding, wherein the decoding time interval represents a period of time after the start time slot of the speech frame and before the last time slot of the speech frame.
  • the decoding unit is specifically configured to: start from the decoding time interval in the decoding time interval At the beginning of the time point, part of the voice data of the received speech frame is decoded every preset time interval until the decoding is successful.
  • the foregoing indication unit Specifically, the ACK message is sent to the sending device of the voice frame to indicate that the decoding succeeds.
  • the foregoing indication unit Specifically, after the decoding is successful, the transmit power control TPC information is fed back to the sending device of the voice frame at a preset time slot position, where the sending device of the voice frame is at the preset time slot position. The above TPC information is received to indicate that the decoding is successful.
  • the network device sends the device to the voice frame in a manner of one time slot.
  • the foregoing indicating unit is specifically configured to: feed back TPC information to the sending device of the voice frame at multiple consecutive time slot positions.
  • the indicating unit is specifically configured to: feed back TPC information to the sending device of the voice frame at an even slot position.
  • the decoding success indication to the sending device of the voice frame is continued until the voice frame sent by the sending device of the voice frame is detected, thereby ensuring the voice frame.
  • the transmitting device can learn that the voice frame is successfully decoded and terminate the transmission of the voice frame, thereby ensuring the gain validity after successful decoding in advance.
  • FIG. 1 is a schematic flowchart of an embodiment of a method for early decoding of a voice frame according to the present invention
  • FIG. 1 is a schematic diagram showing the sequence of voice number transmission between a NodeB and a UE in a downlink scenario of WCDMA according to the present invention
  • FIG. 1-c is a schematic diagram of an embodiment of a decoding success indication manner provided by the present invention.
  • FIG. 1 is a schematic diagram of another embodiment of a decoding success indication manner provided by the present invention
  • FIG. 2 is a schematic structural diagram of an embodiment of a network device according to the present invention
  • FIG. 3 is a schematic structural diagram of another embodiment of a network device according to the present invention. detailed description
  • Embodiments of the present invention provide a method for early decoding of a voice frame and related network devices.
  • a method for early decoding of a voice frame according to an embodiment of the present invention includes:
  • the duration of a voice frame is 20 ms, including 30 time slots. It is assumed that the delay of the uplink DPCH with respect to the downlink DPCH is T Q , and the transmission delay between the NodeB and the UE is Tp.
  • the timing diagram of the voice number transmission between the NodeB and the UE may be as shown in FIG. 1-b. In FIG. 1-b, each small square represents a time slot (ie, slot), DL.
  • the DPCH@NB line indicates the timing at which the NodeB transmits voice data to the UE through the downlink DPCH.
  • the DL DPCH@UE line indicates the timing at which the UE receives the voice data from the NodeB through the downlink DPCH, and the UL DPCH@UE line indicates the UE.
  • the receiving end of the voice frame can try to receive the received voice every 2 ms.
  • the data is decoded.
  • the UE may attempt to decode the received voice data every 3 time slots, that is, decode the received voice data at the position starting from the 3nth time slot, respectively.
  • ⁇ , 2, 3 , 4, 10
  • the decoding time interval may be set to enable the receiving end of the speech frame.
  • the speech data of the received speech frame is decoded only at at least one time point within the decoding time interval.
  • the above decoding time interval represents a period of time after the start time slot of the voice frame and before the last time slot of the voice frame. It is assumed that the probability of successful decoding in advance at time t is P ⁇ t, and the average length of successful decoding of the UE at time t is obtained from the success of decoding until the transmitting end of the speech frame knows that the speech frame is successfully decoded.
  • the decoding time interval may be the interval [ ⁇ ⁇ 2 ], or may be a subset of the interval [ ⁇ ⁇ 2 ], or may include the above interval [ ⁇ , T 2 ], which is not used here.
  • the voice data of the received voice frame may be decoded every predetermined time interval from the start time point in the above decoding time interval until decoding Successfully, or, the voice data of the received voice frame may be decoded at a certain point or points in the above decoding time zone, for example, at the time point when the average net income is the largest.
  • the voice data of the voice frame is decoded, which is not limited herein.
  • the transmitting device of the voice frame learns that the voice frame is successfully decoded, and the transmitting device of the voice frame stops transmitting the voice frame.
  • the sending device of the voice frame when the sending device of the voice frame receives the ACK message and learns that the voice frame is successfully decoded, it stops sending the voice frame to the receiving device of the voice frame when it is learned that the voice frame is successfully decoded. Therefore, in this application scenario, when the receiving device of the voice frame is successfully decoded in advance, the device continuously performs a decoding success indication to the transmitting device of the voice frame by means of display feedback, that is, when the receiving device of the voice frame is advanced When the decoding is successful, the ACK message is fed back to the sending device of the voice frame, and the sending of the ACK message is maintained until the voice frame sent by the sending device of the voice frame is no longer detected.
  • the device when the receiving device of the voice frame is successfully decoded in advance, the device continuously performs the decoding success indication to the sending device of the voice frame by using implicit feedback, such as when the receiving device of the voice frame is advanced.
  • the decoding succeeds, it feeds back the transmit power control (TPC) information to the transmitting device of the voice frame at a preset time slot position, until the voice frame sent by the sending device of the voice frame is no longer detected.
  • TPC transmit power control
  • the sending device of the voice frame receives the TPC information in the preset time slot position, the sending device of the voice frame learns that the voice frame has been decoded, and stops sending the voice to the receiving device of the voice frame. frame.
  • the receiving device of the voice frame feeds back the TPC information to the sending device of the voice frame every time interval before the decoding succeeds, when the voice frame is After the receiving device successfully decodes the voice frame in advance, it can feed back the TPC information to the sending device of the voice frame at the continuous time slot position, and then recovers the voice frame sent by the sending device of the voice frame.
  • the above-mentioned TPC information is fed back to the transmitting device of the voice frame in a manner of one time slot.
  • the receiving device of the voice frame starts from the first time slot of the voice frame, and feeds the TPC information to the transmitting device of the voice frame every other time slot (in the figure) T" denotes TPC information), when the decoding is successful in the ninth slot of the speech frame, the receiving device of the speech frame is from the tenth of the speech frame Starting from the time slot, the TPC information is fed back to the transmitting device of the voice frame at the continuous time slot position, and then the transmitting device of the voice frame is in the 10th time slot (or the (10+2n)th time slot of the voice frame. And n is an integer greater than 0.
  • the sending device of the voice frame stops feeding back the TPC information to the receiving device of the voice frame.
  • the receiving device of the voice frame does not detect the voice frame sent by the sending device of the voice frame, the receiving device returns the TPC information to the sending device of the voice frame in a manner of repeating the time slot.
  • the receiving device of the voice frame feeds back the TPC information to the sending device of the voice frame at the odd slot position before the decoding succeeds, the receiving device of the voice frame After the voice frame is decoded in advance, the TPC information can be fed back to the sending device of the voice frame at the even time slot position, until the transmitting device that does not detect the voice frame sends the voice frame, and then the voice frame is restored.
  • the TPC information is fed back to the transmitting device of the voice frame at the odd slot position.
  • the receiving device of the voice frame starts from the first time slot of the voice frame, and feeds back the TPC information to the sending device of the voice frame at the odd time slot position.
  • the receiving device of the voice frame starts to transmit the TPC information to the transmitting device of the voice frame at the even time slot position from the 10th time slot of the voice frame.
  • the transmitting device of the voice frame receives the TPC information fed back by the receiving device of the voice frame at the even time slot position of the voice frame, it is learned that the voice frame is successfully decoded, and the sending device of the voice frame stops at the time.
  • the receiving device of the voice frame feeds back the TPC information, and the receiving device of the voice frame detects that the transmitting device of the voice frame no longer transmits the voice frame, and restores the sending device to the voice frame at the odd slot position of the voice frame. Feedback TPC information.
  • the receiving device of the voice frame feeds back the TPC information to the sending device of the voice frame at the continuous slot position before the decoding succeeds, the receiving device of the voice frame is used. After the voice frame is successfully decoded in advance, it can feed back to the sending device of the voice frame in a manner of one time slot.
  • the receiving device of the voice frame may feed back the TPC information to the sending device of the voice frame at the time slot position of (3n+2) of the voice frame, where n is greater than or equal to 0.
  • the integer of the embodiment of the present invention does not limit the manner in which the above-mentioned continuous transmission instruction to the transmitting device of the voice frame is continuously performed.
  • the embodiments of the present invention can be applied to WCDMA and third generation mobile communication networks.
  • the transmitting device of the voice frame in the embodiment of the present invention may be a base station or a UE, which is not limited herein.
  • the embodiment of the present invention continuously performs the decoding success indication to the sending device of the voice frame until the voice frame sent by the sending device of the voice frame is no longer detected, thereby ensuring the voice frame.
  • the transmitting device can learn that the voice frame is successfully decoded and terminate the transmission of the voice frame, thereby ensuring the gain validity after successful decoding in advance.
  • the embodiment of the present invention further provides a scheme for performing early decoding in a decoding time interval, which can effectively save decoding overhead.
  • the embodiment of the present invention further provides a network device. As shown in FIG. 2, the network device 200 in the embodiment of the present invention includes:
  • the receiving unit 201 is configured to receive partial voice data of the voice frame.
  • the decoding unit 202 is configured to decode the partial voice data of the voice frame that has been received by the receiving unit 201 in advance when the receiving unit 201 does not complete the reception of all the voice data of the voice frame.
  • the decoding unit 201 can attempt to decode the voice data that has been received by the receiving unit 201 every 2 ms.
  • the decoding time interval may be set, so that the decoding unit 202 only At least one time point in the decoding time interval, the speech data of the speech frame that has been received by the receiving unit 201 is decoded.
  • the decoding time interval represents a period of time after the start time slot of the voice frame and before the last time slot of the voice frame. It is assumed that the probability of successful decoding at time t is P ⁇ t, and the decoding unit 202 decodes the successful average at time t from the successful decoding to the time when the transmitting end of the speech frame learns that the speech frame is successfully decoded.
  • the gain gain ⁇ P(t) * (T ⁇ x - T "t, the average cost of decoding failure of the decoding unit 202 at time t /o ⁇ (lP(t"* C , where 0 ⁇ t ⁇ T Max , T max represents the duration of a speech frame (as in Figure 1-b, T max is equal to 20 ms), the value of (: the number of basic operations required by the decoding unit 202 to decode the received speech data) (ie, the computational complexity in the decoding process) is related. In practical applications, the value of C can be set according to the performance of the chip used when decoding the received voice data.
  • the above decoding time interval may take the above interval [ Tl , T2] may also take a subset of the above intervals [Tl, T2], or may include the above-mentioned interval [Tl, T2], which is not limited herein.
  • the voice data of the received voice frame may be decoded every preset time interval from the start time point in the above-mentioned decoding time interval until the decoding is successful, or may be performed in the above translation.
  • the voice data of the received voice frame is decoded at a certain point or points in the code time zone, for example, the voice data of the received voice frame is translated at the time point when the average net income is maximum. Code, not limited here.
  • the indicating unit 203 is configured to, after the decoding unit 202 successfully decodes the partial voice data of the received voice frame, continuously perform a decoding success indication to the sending device of the voice frame, until the voice frame is no longer detected.
  • the transmitting frame sent by the sending device wherein the transmitting device of the voice frame succeeds in receiving the indication, that is, the voice frame is successfully decoded, and the transmitting device of the voice frame stops transmitting the voice frame.
  • the sending device of the voice frame when the sending device of the voice frame receives the ACK message and learns that the voice frame is successfully decoded, it stops sending the voice frame to the receiving device of the voice frame when it is learned that the voice frame is successfully decoded. Therefore, in this application scenario, when the decoding unit 202 successfully decodes in advance, the indication unit 203 continuously performs a decoding success indication to the transmitting device of the voice frame by using display feedback, that is, when the decoding unit 202 advances When the decoding is successful, the instructing unit 203 feeds back the ACK message to the transmitting device of the voice frame, and keeps the sending of the ACK message until the network device 200 no longer detects the voice frame sent by the sending device of the voice frame.
  • the indication unit 203 continuously performs a decoding success indication to the transmitting device of the voice frame by means of implicit feedback, such as when the decoding unit 202 advances
  • the indication unit 203 feeds back the TPC information to the sending device of the voice frame at the preset time slot position until the network device 200 no longer detects the voice frame sent by the sending device of the voice frame.
  • the sending device of the voice frame receives the TPC information in the preset time slot position, the sending device of the voice frame learns that the voice frame has been decoded, and stops sending the voice to the receiving device of the voice frame. frame.
  • the network device 200 feeds back TPC information to the sending device of the voice frame every time slot is decoded before the decoding unit 202 succeeds in decoding, then the translation is performed.
  • the code unit 202 successfully decodes the voice frame in advance.
  • the indication unit 203 can feed back the TPC information to the sending device of the voice frame at the continuous slot position, until the network device 200 no longer detects the voice frame sent by the sending device of the voice frame, and then resumes the above-mentioned interval.
  • the time slot mode feeds back TPC information to the transmitting device of the voice frame.
  • the indication unit 203 can feed back the TPC information to the sending device of the voice frame at the even time slot position, and then resume the foregoing after the voice frame sent by the sending device of the voice frame is no longer detected.
  • the TPC information is fed back to the transmitting device of the speech frame at an odd slot position of the speech frame.
  • the indication unit 203 may feed back the TPC information to the sending device of the voice frame in a manner of one time slot, for example, before the decoding unit 202 successfully decodes the network device. 200, feeding back TPC information to the transmitting device of the voice frame at the slot position of (3n+1) of the voice frame, and after the decoding unit 202 successfully decodes the voice frame in advance, the indicating unit 203 may be in the voice.
  • the TPC information is fed back to the sending device of the voice frame, where the n is an integer greater than or equal to 0, and the embodiment of the present invention does not continuously perform the indication unit 203 to the sending device of the voice frame.
  • the manner in which the decoding success is indicated is limited.
  • the embodiment of the present invention may be applied to a system for voice transmission, such as a WCDMA, a third generation mobile communication network (ie, 3G), and the network device 200 in the embodiment of the present invention may be a base station, or It is UE, which is not limited here.
  • a system for voice transmission such as a WCDMA, a third generation mobile communication network (ie, 3G)
  • 3G third generation mobile communication network
  • the network device 200 in the embodiment of the present invention may be a base station, or It is UE, which is not limited here.
  • the network device 200 in the embodiment of the present invention may be used as the receiving device of the voice frame in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the various functional modules may be The method in the foregoing method embodiment is specifically implemented. For the specific implementation process, reference may be made to the related description in the foregoing method embodiments, and details are not described herein again.
  • the embodiment of the present invention continuously performs the decoding success indication to the sending device of the voice frame until the voice frame sent by the sending device of the voice frame is no longer detected, thereby ensuring the voice frame.
  • the transmitting device can learn that the voice frame is successfully decoded and terminate the transmission of the voice frame, thereby ensuring the gain validity after successful decoding in advance.
  • the embodiment of the present invention further provides a scheme for performing early decoding in a decoding time interval, which can effectively save decoding overhead.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores a program, and the program executes the method for pre-decoding a voice frame and related network device according to the foregoing method embodiment. Part or all of the arrangement.
  • An embodiment of the present invention provides another network device.
  • the network device 300 in the embodiment of the present invention includes:
  • the input device 301, the output device 302, the memory 303, and the processor 304 (the number of the processors 304 of the base station may be one or more, and FIG. 3 takes a processor as an example).
  • the input device 301, the output device 302, the memory 303, and the processor 304 may be connected by a bus or the like, as exemplified by a bus connection as shown in FIG.
  • the processor 304 performs the following steps:
  • the partial voice data of the received voice frame is decoded in advance
  • the transmitting device of the voice frame is continuously instructed to succeed, until the voice frame sent by the sending device of the voice frame is no longer detected, where the sending device of the voice frame successfully receives the above After the indication, it is known that the above-mentioned voice frame is successfully decoded, and at this time, the transmitting device of the above-mentioned voice frame stops the transmission of the above-mentioned voice frame.
  • the embodiment of the present invention may be applied to a system for voice transmission, such as a WCDMA, a third-generation mobile communication network (ie, 3G), and the network device 300 in the embodiment of the present invention may be a base station, or It is UE, which is not limited here.
  • a system for voice transmission such as a WCDMA, a third-generation mobile communication network (ie, 3G)
  • the network device 300 in the embodiment of the present invention may be a base station, or It is UE, which is not limited here.
  • the network device 300 in the embodiment of the present invention may be used as the receiving device of the voice frame in the foregoing method embodiment, and may be used to implement all the technical solutions in the foregoing method embodiments, and the functions of the various functional modules may be The method in the foregoing method embodiment is specifically implemented. For the specific implementation process, reference may be made to the related description in the foregoing method embodiments, and details are not described herein again.
  • the embodiment of the present invention continuously performs the decoding success indication to the sending device of the voice frame until the voice frame sent by the sending device of the voice frame is no longer detected, thereby ensuring the voice frame.
  • the transmitting device can learn that the voice frame is successfully decoded and terminate the transmission of the voice frame, thereby ensuring the gain validity after successful decoding in advance.
  • the program may be stored in a computer readable storage medium, for example, the storage medium may be Includes: Read Only Memory, Random Access Memory, Disk or CD, and more.

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Abstract

本发明公开了一种语音帧的提前译码方法及网络设备,其中,一种语音帧的提前译码方法,包括:接收语音帧的部分语音数据(101);在没有对语音帧的全部语音数据接收完成时,提前对已接收到的所述语音帧的部分语音数据进行译码(102);当译码成功后,持续向所述语音帧的发送设备进行译码成功指示,直至不再检测到所述语音帧的发送设备发送的所述语音帧(103),其中所述语音帧的发送设备在成功收到所述指示后停止所述语音帧的发送。本发明提供的技术方案能够保证提前译码成功后的增益有效性。

Description

一种语音帧的提前译码方法及网络设备
本申请要求于 2013 年 7 月 31 日提交中国专利局、 申请号为 201310330189.6, 发明名称为"一种语音帧的提前译码方法及网络设备"的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通讯技术领域,尤其涉及一种语音帧的提前译码方法及网络设 备。 背景技术
由于语音帧在进行编码的过程中会有冗余信息, 语音帧的接收端根据冗余 信息和接收到的该语音帧的部分语音数据可能能够译码出整个语音帧, 因此, 在语音增强方案中,有一种是对语音帧进行提前译码的方案, 当对语音帧提前 译码成功后, 语音帧的接收端将向语音帧的发送端反馈确认应答(ACK , Acknowledgement ) 消息, 以指示接收正确, 语音帧的发送端在接收到 ACK 消息后停止发送该语音帧, 以节省功率并减小对其它信道的干扰。 目前存在一种提前译码方案 (为便于描述, 下面将语音帧的接收端简称为 接收端, 将语音帧的发送端简称为发送端): 接收端收到来自发送端的语音数据后, 每隔 2毫秒(即 2ms ) 尝试对接收 到的语音数据进行译码, 当译码成功时,在当前时隙的下一个时隙向发送端反 馈 ACK消息, 发送端在收到 ACK消息后终止当前语音帧的发送。 如以宽带 码分多址( WCDMA, Wideband Code Division Multiple Access )的下行传输为 例, 基站(即 NodeB )向用户设备(UE, User Equipment )发送语音帧, 一个 语音帧的时长为 20ms, 包含 30个时隙, UE每隔 2ms对接收到语音数据尝试 提前译码, 假设在一个语音帧的第 9个时隙译码成功, 则在该语音帧的第 10 个时隙, 在上行专用物理信道 ( DPCH, Dedicated Physical Channel )信道中向 NodeB中发送 ACK消息, NodeB接收该 ACK消息后, 停止该语音帧的发送。 上述方案能够在理想的信道环境下实现提前译码, 然而, 在实际的信道 环境中, ACK的接收存在失败的可能, 即, 上述发送端可能因无法成功接收 到上述接收端反馈的 ACK而继续向接收端发送上述语音帧的语音数据, 使 得提前译码成功后的增益失效。 发明内容
本发明各个方面提供了一种语音帧的提前译码方法及相关网络设备,用于 保证提前译码成功后的增益有效性。
为解决上述技术问题, 提供以下技术方案:
本发明第一方面提供了一种语音帧的提前译码方法, 包括:
接收语音帧的部分语音数据;
在没有对语音帧的全部语音数据接收完成时 ,提前对已接收到的上述语音 帧的部分语音数据进行译码;
当对已接收到的上述语音帧的部分语音数据译码成功后,持续向上述语音 帧的发送设备进行译码成功的指示,直至不再检测到上述语音帧的发送设备发 送的上述语音帧, 其中, 上述语音帧的发送设备在成功收到上述指示后停止上 述语音帧的发送。
基于本发明第一方面,在第一种可能的实现方式中, 上述提前对已接收到 的上述语音帧的部分语音数据进行译码, 包括:
在译码时间区间内的至少一个时间点上,对已接收到的上述语音帧的部分 语音数据进行译码, 其中, 上述译码时间区间表示在上述语音帧的起始时隙之 后, 且在上述语音帧的最后一个时隙之前的一段时间。
基于本发明第一方面的第一种可能的实现方式,在第二种可能的实现方式 中, 上述在译码时间区间内的至少一个时间点上,对已接收到的上述语音帧的 部分语音数据进行译码, 包括:
在上述译码时间区间内,从上述译码时间区间内的起始时间点开始,每隔 预设时间间隔对已接收到的语音帧的部分语音数据进行译码, 直至译码成功。
基于本发明第一方面, 或者本发明第一方面的第一种可能的实现方式, 或 者本发明第一方面的第二种可能的实现方式,在第三种可能的实现方式中, 上 述持续向上述语音帧的发送设备进行译码成功的指示, 包括:
在译码成功之后的每个时隙, 向上述语音帧的发送设备发送确认应答
ACK消息以指示译码成功。
基于本发明第一方面, 或者本发明第一方面的第一种可能的实现方式, 或 者本发明第一方面的第二种可能的实现方式,在第四种可能的实现方式中, 上 述持续向上述语音帧的发送设备进行译码成功的指示, 包括:
在译码成功之后,在预设的时隙位置上向上述语音帧的发送设备反馈发射 功率控制 TPC信息以指示译码成功。
基于本发明第一方面的第四种可能的实现方式,在第五种可能的实现方式 中,若在译码成功之前按每间隔一个时隙的方式向上述语音帧的发送设备反馈 TPC信息,则上述在预设的时隙位置上向上述语音帧的发送设备反馈发射功率 控制 TPC信息, 包括:
在多个连续时隙位置上向上述语音帧的发送设备反馈 TPC信息。
基于本发明第一方面的第四种可能的实现方式,在第六种可能的实现方式 中, 若在译码成功之前在奇数时隙位置上向上述语音帧的发送设备反馈 TPC 信息 ,则上述在预设的时隙位置上向上述语音帧的发送设备反馈发射功率控制
TPC信息, 包括:
在偶数时隙位置上向上述语音帧的发送设备反馈 TPC信息。
本发明第二方面提供了一种网络设备, 包括:
接收单元, 用于接收语音帧的部分语音数据;
译码单元, 用于在上述接收单元没有对语音帧的全部语音数据接收完成 时, 提前对上述接收单元已接收到的上述语音帧的部分语音数据进行译码; 指示单元,用于当上述译码单元对已接收到的上述语音帧的部分语音数据 译码成功后,持续向上述语音帧的发送设备进行译码成功指示, 直至不再检测 到上述语音帧的发送设备发送的上述语音帧, 其中, 上述语音帧的发送设备在 成功收到上述指示后停止上述语音帧的发送。
基于本发明第二方面,在第一种可能的实现方式中, 上述译码单元具体用 于: 在译码时间区间内的至少一个时间点上,对已接收到的语音帧的部分语音 数据进行译码, 其中, 上述译码时间区间表示在上述语音帧的起始时隙之后, 且在上述语音帧的最后一个时隙之前的一段时间。 基于本发明第二方面的第一种可能的实现方式,在第二种可能的实现方式 中, 上述译码单元具体用于: 在上述译码时间区间内, 从上述译码时间区间内 的起始时间点开始,每隔预设时间间隔对已接收到的语音帧的部分语音数据进 行译码, 直至译码成功。
基于本发明第二方面, 或者本发明第二方面的第一种可能的实现方式, 或 者本发明第二方面的第二种可能的实现方式,在第三种可能的实现方式中, 上 述指示单元具体用于: 在译码成功之后的每个时隙, 向上述语音帧的发送设备 发送确认应答 ACK 消息, 其中, 当上述语音帧的发送设备接收到上述 ACK 消息以指示译码成功。
基于本发明第二方面, 或者本发明第二方面的第一种可能的实现方式, 或 者本发明第二方面的第二种可能的实现方式, 在第四种可能的实现方式中, 上述指示单元具体用于: 在译码成功之后,在预设的时隙位置上向上述语 音帧的发送设备反馈发射功率控制 TPC信息, 其中, 当上述语音帧的发送设 备在上述预设的时隙位置上接收到上述 TPC信息以指示译码成功。
基于本发明第二方面的第四种可能的实现方式,在第五种可能的实现方式 中, 若在译码成功之前, 上述网络设备按每间隔一个时隙的方式向上述语音帧 的发送设备反馈 TPC信息, 则上述指示单元具体用于: 在多个连续时隙位置 上向上述语音帧的发送设备反馈 TPC信息。
基于本发明第二方面的第四种可能的实现方式,在第六种可能的实现方式 中, 若在译码成功之前在奇数时隙位置上向上述语音帧的发送设备反馈 TPC 信息, 则上述指示单元具体用于: 在偶数时隙位置上向上述语音帧的发送设备 反馈 TPC信息。
由上可见, 本发明实施例在译码成功后,持续向语音帧的发送设备进行译 码成功指示不再直至检测到该语音帧的发送设备发送的该语音帧,从而保证了 该语音帧的发送设备能够获知该语音帧被译码成功并终止该语音帧的发送,进 而保证了提前译码成功后的增益有效性。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲, 在不付 出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。 图 1-a 为本发明提供的一种语音帧的提前译码方法一个实施例流程示意 图;
图 1-b为本发明提供的在 WCDMA的下行场景中, NodeB与 UE之间的 语音数传输时序示意图;
图 1-c为本发明提供的译码成功指示方式一个实施例示意图;
图 1-d为本发明提供的译码成功指示方式另一个实施例示意图; 图 2为本发明提供的一种网络设备一个实施例结构示意图;
图 3为本发明提供的一种网络设备另一个实施例结构示意图。 具体实施方式
本发明实施例提供了一种语音帧的提前译码方法及相关网络设备。
为使得本发明的发明目的、 特征、 优点能够更加的明显和易懂, 下面将结 合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而非全部实施例。 基 于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获 得的各个其他实施例, 都属于本发明保护的范围。
下面对本发明实施例提供的一种语音帧的提前译码方法进行描述,请参阅 图 1-a, 本发明实施例中的一种语音帧的提前译码方法包括:
101、 接收语音帧的部分语音数据。
102、 在没有对语音帧的全部语音数据接收完成时, 提前对已接收到的上 述语音帧的部分语音数据进行译码;
以 WCDMA的下行场景为例, 一个语音帧的时长为 20ms, 包含 30个时 隙, 假设上行 DPCH相对于下行 DPCH的延时为 TQ, NodeB与 UE之间的传 输延时为 Tp, 则在 WCDMA的下行场景中, NodeB与 UE之间的语音数传输 时序示意图可以如图 1-b所示, 其中, 在图 1-b中, 每个小方格代表一个时隙 (即 slot ), DL DPCH@NB一行表示的是 NodeB通过下行 DPCH向 UE发送 语音数据的时序, DL DPCH@UE一行表示的是 UE通过下行 DPCH收到来自 NodeB的语音数据的时序, UL DPCH@UE一行表示的是 UE的上行 DPCH相 对于下行 DPCH的时序。
在本发明实施例中, 语音帧的接收端可以每隔 2ms 尝试对接收到的语音 数据进行译码。 如图 1-b中所示, UE可以每隔 3个时隙尝试对接收到的语音 数据进行译码, 即分别在第 3n个时隙开始的位置对已接收到的语音数据进行 译码, 其中, η=ι , 2, 3 , 4, 10
从图 1-b可以看出 由于一个语音帧包括 30个时隙, 当 NodeB在一个语 音帧的第 30个时隙向 UE发送语音数据时, 意味着该语音帧的全部语音数据 已经都发送给了 UE, 因此, UE在第 30个时隙釆用提前译码方法对接收到的 语音数据进行译码并无意义, 为了使提前译码有意义, UE最后一次提前译码 与第 30个时隙结束的时间间隔应大于 Tth,其中, Tth=Tproc+Tlsl t+Tproc@NB, Tproc 表示 UE的译码处理时长, Tlslt表示一个时隙的时长, Tproc@NB表示 NodeB接 收到 UE反馈的信息后需要的数据处理时长。
由于译码过程中存在译码开销 (如芯片功耗等), 因此, 在本发明实施例 的一种应用场景中, 为了节省译码开销, 可以设置译码时间区间, 使语音帧的 接收端只在该译码时间区间内的至少一个时间点上,对已接收到的语音帧的语 音数据进行译码。其中,上述译码时间区间表示在上述语音帧的起始时隙之后, 且在上述语音帧的最后一个时隙之前的一段时间。假设在 t时刻提前译码成功 的概率为 P{t、 , 从译码成功到语音帧的发送端获知语音帧被译码成功的时长为 Ί] , 则 UE在 t时刻译码成功的平均收益 gain = P(t) * (T^x - Tl - t) , UE在 t时刻 译码失败的平均成本 /o^ = (l- P(t))*C , 其中, 0<t<Tmax, Tmax表示一个语音帧 的时长(如在图 1-b 中, Tmax等于 20ms ), (:的取值与 UE对接收到的语音数 据进行译码需要的基本运算的次数(即译码过程中的计算复杂度)相关, 在实 际应用中, C的取值可以根据对接收到的语音数据进行译码时使用的芯片的性 能进行设置, 例如, 芯片功耗低, 则 (:可取较小的值, 芯片功耗大, 则 (:可取 较大的值。 由平均收益和平均成本的公式可知, UE在 t时刻对已接收到的语 音数据进行译码的平均净收益 net = gain - loss = P(t) * (Γ - T, - t) - (l - P(t ) * C , 在 一定的信道环境中, P(t)可以根据历史数据或者实验数据总结得到, 则必定存 在一段时间 (假设为区间 [Ί^ , T2] ), 使得 UE在 [Ί^ , T2]内进行提前译码时的 平均净收益大于零, 因此, 在本发明实施例中, 上述译码时间区间可以取上述 区间 [Τ Τ2] , 也可以取上述区间 [Τ Τ2]的子集, 或者, 也可以包含上述区间 [Τι , T2] , 此处不作限定。 具体地, 可以从上述译码时间区间内的起始时间点 开始,每隔预设时间间隔对已接收到的语音帧的语音数据进行译码, 直至译码 成功, 或者, 也可以在上述译码时间区内的某一个点或者某几个点上对已接收 到的语音帧的语音数据进行译码,如在平均净收益最大的时间点上对已接收到 的语音帧的语音数据进行译码, 此处不作限定。
103、 当对已接收到的上述语音帧的部分语音数据译码成功后, 持续向上 述语音帧的发送设备进行译码成功指示,直至不再检测到上述语音帧的发送设 备发送的上述语音帧;
其中, 上述语音帧的发送设备在成功收到上述指示后, 即获知上述语音帧 被译码成功, 此时上述语音帧的发送设备停止上述语音帧的发送。
在一种应用场景下, 当该语音帧的发送设备接收到 ACK消息后获知该语 音帧被译码成功,在获知该语音帧被译码成功时停止向该语音帧的接收设备发 送该语音帧, 因此, 在此应用场景下, 当语音帧的接收设备提前译码成功时, 其釆用显示反馈的方式持续向上述语音帧的发送设备进行译码成功指示,即当 语音帧的接收设备提前译码成功时, 向该语音帧的发送设备反馈 ACK消息, 并保持 ACK消息的发送, 直至不再检测到上述语音帧的发送设备发送的上述 语音帧。
在另一种应用场景下, 当语音帧的接收设备提前译码成功时, 其釆用隐示 反馈的方式持续向上述语音帧的发送设备进行译码成功指示,如当语音帧的接 收设备提前译码成功时 ,其在预设的时隙位置上向该语音帧的发送设备反馈发 射功率控制 (TPC, Transmit Power Control )信息, 直至不再检测到上述语音 帧的发送设备发送的上述语音帧。当该语音帧的发送设备在上述预设的时隙位 置上接收到上述 TPC信息时, 该语音帧的发送设备获知该语音帧已被译码, 其停止向该语音帧的接收设备发送该语音帧。具体地,在本应用场景下的一种 实现方式, 若在译码成功之前,语音帧的接收设备按每间隔一个时隙的方式向 该语音帧的发送设备反馈 TPC信息, 则当语音帧的接收设备对该语音帧提前 译码成功后,其可以在连续时隙位置上向该语音帧的发送设备反馈 TPC信息, 直至不再检测到上述语音帧的发送设备发送的上述语音帧后,恢复上述按每间 隔一个时隙的方式向该语音帧的发送设备反馈 TPC信息。如图 1-c所示,在译 码成功之前,语音帧的接收设备从语音帧的第 1个时隙开始,每隔一个时隙向 该语音帧的发送设备反馈 TPC信息(图中以 "T" 表示 TPC信息), 当在该语 音帧的第 9个时隙提前译码成功时, 语音帧的接收设备从该语音帧的第 10个 时隙开始, 在连续时隙位置上向该语音帧的发送设备反馈 TPC信息, 则当该 语音帧的发送设备在该语音帧的第 10个时隙(或第 (10+2n )个时隙, n为大 于 0的整数)接收到该语音帧的接收设备反馈的 TPC信息时, 获知该语音帧 被译码成功, 此时该语音帧的发送设备停止向该语音帧的接收设备反馈 TPC 信息, 该语音帧的接收设备不再检测到该语音帧的发送设备发送的该语音帧 时,恢复上述按每间隔一个时隙的方式向该语音帧的发送设备反馈 TPC信息。 在本应用场景下的另一种实现方式, 若在译码成功之前,语音帧的接收设备在 奇数时隙位置上向上述语音帧的发送设备反馈 TPC信息, 则当语音帧的接收 设备对该语音帧提前译码成功后,其可以在偶数时隙位置上向上述语音帧的发 送设备反馈 TPC信息, 直至不再检测到上述语音帧的发送设备发送上述语音 帧后,恢复上述在该语音帧的奇数时隙位置上向该语音帧的发送设备反馈 TPC 信息。 如图 1-d所示, 在译码成功之前, 语音帧的接收设备从语音帧的第 1个 时隙开始, 在奇数时隙位置上向该语音帧的发送设备反馈 TPC信息, 当在该 语音帧的第 9个时隙提前译码成功时, 语音帧的接收设备从该语音帧的第 10 个时隙开始, 在偶数时隙位置上向该语音帧的发送设备反馈 TPC信息, 则当 该语音帧的发送设备在该语音帧的偶数时隙位置上接收到该语音帧的接收设 备反馈的 TPC信息时, 获知该语音帧被译码成功, 此时该语音帧的发送设备 停止向该语音帧的接收设备反馈 TPC信息, 该语音帧的接收设备检测到该语 音帧的发送设备不再发送该语音帧时 ,恢复上述在该语音帧的奇数时隙位置上 向上述语音帧的发送设备反馈 TPC信息。 当然, 本应用场景下还存在其它实 现方式, 例如, 若在译码成功之前, 语音帧的接收设备在连续时隙位置上向上 述语音帧的发送设备反馈 TPC信息, 则当语音帧的接收设备对该语音帧提前 译码成功后, 其可以按每间隔一个时隙的方式向上述语音帧的发送设备反馈
TPC信息 ,又例如 ,若在译码成功之前 ,语音帧的接收设备在该语音帧的( 3n+l ) 的时隙位置上向该语音帧的发送设备反馈 TPC信息, 则当语音帧的接收设备 对该语音帧提前译码成功后, 语音帧的接收设备可以在该语音帧的(3n+2 )的 时隙位置上向上述语音帧的发送设备反馈 TPC信息, 上述 n为大于或等于 0 的整数,本发明实施例不对上述持续向上述语音帧的发送设备进行译码成功指 示的方式进行限定。
需要说明的是, 本发明实施例可以应用于 WCDMA、 第三代移动通信网 络(即 3G )等适用于语音传输的系统中, 本发明实施例中的语音帧的发送设 备可以是基站, 也可以是 UE, 此处不作限定。
由上可见, 本发明实施例在译码成功后,持续向语音帧的发送设备进行译 码成功指示直至不再检测到该语音帧的发送设备发送的该语音帧,从而保证了 该语音帧的发送设备能够获知该语音帧被译码成功并终止该语音帧的发送,进 而保证了提前译码成功后的增益有效性。 另外, 本发明实施例中还提供了在译 码时间区间内进行提前译码的方案, 能够有效节省译码开销。 本发明实施例还提供一种网络设备,如图 2所示, 本发明实施例中的网络 设备 200, 包括:
接收单元 201 , 用于接收语音帧的部分语音数据。
译码单元 202 , 用于在接收单元 201没有对语音帧的全部语音数据接收完 成时, 提前对接收单元 201已接收到的上述语音帧的部分语音数据进行译码; 在本发明实施例中, 译码单元 201可以每隔 2ms尝试对接收单元 201 已 接收到的语音数据进行译码。
由于译码过程中存在译码开销 (如芯片功耗等), 因此, 在本发明实施例 的一种应用场景中, 为了节省译码开销, 可以设置译码时间区间, 使译码单元 202只在该译码时间区间内的至少一个时间点上, 对接收单元 201已接收到的 语音帧的语音数据进行译码。其中, 上述译码时间区间表示在上述语音帧的起 始时隙之后, 且在上述语音帧的最后一个时隙之前的一段时间。 假设在 t时刻 提前译码成功的概率为 P{t、 , 从译码成功到语音帧的发送端获知语音帧被译码 成功的时长为 , 则译码单元 202 在 t 时刻译码成功的平均收益 gain ^ P(t) * (T^x—T「t、, 译码单元 202 在 t 时刻译码失败的平均成本 /o^ = (l-P(t》* C ,其中, 0<t<Tmax, Tmax表示一个语音帧的时长(如在图 1-b 中, Tmax等于 20ms ), (:的取值与译码单元 202对接收到的语音数据进行译码需要 的基本运算的次数(即译码过程中的计算复杂度)相关, 在实际应用中, C的 取值可以根据对接收到的语音数据进行译码时使用的芯片的性能进行设置,例 如, 芯片功耗低, 则 (:可取较小的值, 芯片功耗大, 则 (:可取较大的值。 由平 均收益和平均成本的公式可知,译码单元 202在 t时刻对接收单元 201已接收 到 的 上述语音帧 的语音数据进行译码 的 平 均 净收益为 : net = gain - loss = P(t) * (Jmax -; - t) - (1 - P(t ) * C , 其中, 在一定的信道环境中, P{t、 可以根据历史数据或者实验数据总结得到, 则必定存在一段时间(假设为区间
[Tl , T2] ), 使得译码单元 202在 [Tl , T2]内进行提前译码时的平均净收益大 于零, 因此, 在本发明实施例中, 上述译码时间区间可以取上述区间 [Tl , T2] , 也可以取上述区间 [Tl , T2]的子集, 或者, 也可以包含上述区间 [Tl , T2] , 此 处不作限定。 具体地, 可以从上述译码时间区间内的起始时间点开始, 每隔预 设时间间隔对已接收到的语音帧的语音数据进行译码, 直至译码成功, 或者, 也可以在上述译码时间区内的某一个点或者某几个点上对已接收到的语音帧 的语音数据进行译码,如在平均净收益最大的时间点上对已接收到的语音帧的 语音数据进行译码, 此处不作限定。
指示单元 203 , 用于当译码单元 202对已接收到的上述语音帧的部分语音 数据译码成功后,持续向上述语音帧的发送设备进行译码成功指示, 直至不再 检测到上述语音帧的发送设备发送的上述语音帧, 其中, 上述语音帧的发送设 备在成功收到上述指示后, 即获知上述语音帧被译码成功, 此时上述语音帧的 发送设备停止上述语音帧的发送。
在一种应用场景下, 当该语音帧的发送设备接收到 ACK消息后获知该语 音帧被译码成功,在获知该语音帧被译码成功时停止向该语音帧的接收设备发 送该语音帧, 因此, 在此应用场景下, 当译码单元 202提前译码成功时, 指示 单元 203 釆用显示反馈的方式持续向上述语音帧的发送设备进行译码成功指 示, 即当译码单元 202提前译码成功时,指示单元 203向上述语音帧的发送设 备反馈 ACK消息, 并保持 ACK消息的发送, 直至网络设备 200不再检测到 上述语音帧的发送设备发送的上述语音帧。
在另一种应用场景下, 当译码单元 202提前译码成功时,指示单元 203釆 用隐示反馈的方式持续向上述语音帧的发送设备进行译码成功指示,如当译码 单元 202提前译码成功时,指示单元 203在预设的时隙位置上向该语音帧的发 送设备反馈 TPC信息, 直至网络设备 200不再检测到上述语音帧的发送设备 发送的上述语音帧。当该语音帧的发送设备在上述预设的时隙位置上接收到上 述 TPC信息时, 该语音帧的发送设备获知该语音帧已被译码, 其停止向该语 音帧的接收设备发送该语音帧。 具体地, 在本应用场景下的一种实现方式, 若 在译码单元 202译码成功之前,网络设备 200按每间隔一个时隙的方式向该语 音帧的发送设备反馈 TPC信息, 则当译码单元 202对该语音帧提前译码成功 后, 指示单元 203可以在连续时隙位置上向该语音帧的发送设备反馈 TPC信 息, 直至网络设备 200 不再检测到上述语音帧的发送设备发送的上述语音帧 后,恢复上述按每间隔一个时隙的方式向该语音帧的发送设备反馈 TPC信息。 在本应用场景下的另一种实现方式, 若在译码单元 202译码成功之前, 网络设 备 200在奇数时隙位置上向上述语音帧的发送设备反馈 TPC信息, 则当译码 单元 202对该语音帧提前译码成功后,指示单元 203可以在偶数时隙位置上向 上述语音帧的发送设备反馈 TPC信息, 直至不再检测到上述语音帧的发送设 备发送的上述语音帧后,恢复上述在该语音帧的奇数时隙位置上向该语音帧的 发送设备反馈 TPC信息。 当然, 本应用场景下还存在其它实现方式, 例如, 若在译码单元 202译码成功之前,网络设备 200在连续时隙位置上向上述语音 帧的发送设备反馈 TPC信息,则当译码单元 202对该语音帧提前译码成功后, 指示单元 203 可以按每间隔一个时隙的方式向上述语音帧的发送设备反馈 TPC信息, 又例如, 若在译码单元 202译码成功之前, 网络设备 200在该语音 帧的 (3n+l ) 的时隙位置上向该语音帧的发送设备反馈 TPC信息, 则当译码 单元 202对该语音帧提前译码成功后 ,指示单元 203可以在该语音帧的( 3n+2 ) 的时隙位置上向上述语音帧的发送设备反馈 TPC信息,上述 n为大于或等于 0 的整数,本发明实施例不对指示单元 203持续向上述语音帧的发送设备进行译 码成功指示的方式进行限定。
需要说明的是, 本发明实施例可以应用于 WCDMA、 第三代移动通信网 络(即 3G )等适用于语音传输的系统中, 本发明实施例中的网络设备 200可 以是基站, 或者, 也可以是 UE, 此处不作限定。
需要说明的是,本发明实施例中的网络设备 200可以如上述方法实施例中 的语音帧的接收设备, 可以用于实现上述方法实施例中的全部技术方案, 其各 个功能模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过 程可参照上述方法实施例中的相关描述, 此处不再赘述。
由上可见, 本发明实施例在译码成功后,持续向语音帧的发送设备进行译 码成功指示直至不再检测到该语音帧的发送设备发送的该语音帧,从而保证了 该语音帧的发送设备能够获知该语音帧被译码成功并终止该语音帧的发送,进 而保证了提前译码成功后的增益有效性。 另外, 本发明实施例中还提供了在译 码时间区间内进行提前译码的方案, 能够有效节省译码开销。 本发明实施例还提供一种计算机存储介质, 其中, 该计算机存储介质存储 有程序,该程序执行包括上述方法实施例中记载的在一种语音帧的提前译码方 法及相关网络设备的方法的部分或全部布置。
本发明实施例提供另一个网络设备,如图 3所示, 本发明实施例中的网络 设备 300, 包括:
输入装置 301、输出装置 302、存储器 303以及处理器 304 (基站的处理器 304 的数量可以是一个或者多个, 图 3以一个处理器为例)。在本发明的一些实施例 中, 输入装置 301、 输出装置 302、 存储器 303以及处理器 304可以通过总线或其 它方式连接, 如图 3所示以通过总线连接为例。
其中, 处理器 304执行如下步骤:
接收语音帧的部分语音数据;
在没有对语音帧的全部语音数据接收完成时 ,提前对已接收到的上述语音 帧的部分语音数据进行译码;
当译码成功后,持续向上述语音帧的发送设备进行译码成功指示, 直至不 再检测到上述语音帧的发送设备发送的上述语音帧, 其中, 上述语音帧的发送 设备在成功收到上述指示后, 即获知上述语音帧被译码成功, 此时上述语音帧 的发送设备停止上述语音帧的发送。
需要说明的是, 本发明实施例可以应用于 WCDMA、 第三代移动通信网 络(即 3G )等适用于语音传输的系统中, 本发明实施例中的网络设备 300可 以是基站, 或者, 也可以是 UE, 此处不作限定。
需要说明的是,本发明实施例中的网络设备 300可以如上述方法实施例中 的语音帧的接收设备, 可以用于实现上述方法实施例中的全部技术方案, 其各 个功能模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过 程可参照上述方法实施例中的相关描述, 此处不再赘述。
由上可见, 本发明实施例在译码成功后,持续向语音帧的发送设备进行译 码成功指示直至不再检测到该语音帧的发送设备发送的该语音帧,从而保证了 该语音帧的发送设备能够获知该语音帧被译码成功并终止该语音帧的发送,进 而保证了提前译码成功后的增益有效性。
需要说明的是, 对于前述的各方法实施例, 为了简便描述, 故将其都表述 为一系列的动作组合,但是本领域技术人员应该知悉, 本发明并不受所描述的 动作顺序的限制,因为依据本发明,某些步骤可以釆用其它顺序或者同时进行。 其次, 本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施 例, 所涉及的动作和模块并不一定都是本发明所必须的。
在上述实施例中,对各个实施例的描述都各有侧重, 某个实施例中没有详 述的部分, 可以参见其它实施例的相关描述。
本领域普通技术人员可以理解上述实施例中的各种方法中的全部或部分 步骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可 读存储介质中, 存储介质例如可以包括: 只读存储器、 随机存储器、 磁盘或光 盘等。
以上对本发明所提供的一种语音帧的提前译码方法及网络设备进行了详 细介绍, 对于本领域的一般技术人员, 依据本发明实施例的思想, 在具体实施 方式及应用范围上均会有改变之处, 本说明书内容不应理解为对本发明的限 制。

Claims

权 利 要 求
1、 一种语音帧的提前译码方法, 其特征在于, 包括:
接收语音帧的部分语音数据;
在没有对语音帧的全部语音数据接收完成时,提前对已接收到的所述语音 帧的部分语音数据进行译码;
当对已接收到的所述语音帧的部分语音数据译码成功后 ,持续向所述语音 帧的发送设备进行译码成功的指示,直至不再检测到所述语音帧的发送设备发 送的所述语音帧, 其中, 所述语音帧的发送设备在成功收到所述指示后停止所 述语音帧的发送。
2、 根据权利要求 1所述的方法, 其特征在于,
所述提前对已接收到的所述语音帧的部分语音数据进行译码, 包括: 在译码时间区间内的至少一个时间点上,对已接收到的所述语音帧的部分 语音数据进行译码, 其中, 所述译码时间区间表示在所述语音帧的起始时隙之 后, 且在所述语音帧的最后一个时隙之前的一段时间。
3、 根据权利要求 2所述的方法, 其特征在于,
所述在译码时间区间内的至少一个时间点上,对已接收到的所述语音帧的 部分语音数据进行译码, 包括:
在所述译码时间区间内,从所述译码时间区间内的起始时间点开始,每隔 预设时间间隔对已接收到的语音帧的部分语音数据进行译码, 直至译码成功。
4、 根据权利要求 1至 3任一项所述的方法, 其特征在于,
所述持续向所述语音帧的发送设备进行译码成功的指示, 包括: 在译码成功之后的每个时隙, 向所述语音帧的发送设备发送确认应答 ACK消息以指示译码成功。
5、 根据权利要求 1至 3任一项所述的方法, 其特征在于,
所述持续向所述语音帧的发送设备进行译码成功的指示, 包括: 在译码成功之后,在预设的时隙位置上向所述语音帧的发送设备反馈发射 功率控制 TPC信息以指示译码成功。
6、 根据权利要求 5所述的方法, 其特征在于,
若在译码成功之前按每间隔一个时隙的方式向所述语音帧的发送设备反 馈 TPC信息, 则所述在预设的时隙位置上向所述语音帧的发送设备反馈发射 功率控制 TPC信息, 包括:
在多个连续时隙位置上向所述语音帧的发送设备反馈 TPC信息。
7、 根据权利要求 5所述的方法, 其特征在于,
若在译码成功之前在奇数时隙位置上向所述语音帧的发送设备反馈 TPC 信息 ,则所述在预设的时隙位置上向所述语音帧的发送设备反馈发射功率控制 TPC信息, 包括:
在偶数时隙位置上向所述语音帧的发送设备反馈 TPC信息。
8、 一种网络设备, 其特征在于, 包括:
接收单元, 用于接收语音帧的部分语音数据;
译码单元, 用于在所述接收单元没有对语音帧的全部语音数据接收完成 时, 提前对所述接收单元已接收到的所述语音帧的部分语音数据进行译码; 指示单元,用于当所述译码单元对已接收到的所述语音帧的部分语音数据 译码成功后,持续向所述语音帧的发送设备进行译码成功指示, 直至不再检测 到所述语音帧的发送设备发送的所述语音帧, 其中, 所述语音帧的发送设备在 成功收到所述指示后停止所述语音帧的发送。
9、 根据权利要求 8所述的网络设备, 其特征在于,
所述译码单元具体用于: 在译码时间区间内的至少一个时间点上,对已接 收到的语音帧的部分语音数据进行译码, 其中, 所述译码时间区间表示在所述 语音帧的起始时隙之后, 且在所述语音帧的最后一个时隙之前的一段时间。
10、 根据权利要求 9所述的网络设备, 其特征在于,
所述译码单元具体用于: 在所述译码时间区间内,从所述译码时间区间内 的起始时间点开始,每隔预设时间间隔对已接收到的语音帧的部分语音数据进 行译码, 直至译码成功。
11、 根据权利要求 8至 10任一项所述的网络设备, 其特征在于, 所述指示单元具体用于: 在译码成功之后的每个时隙, 向所述语音帧的发 送设备发送确认应答 ACK消息, 其中, 当所述语音帧的发送设备接收到所述 ACK消息以指示译码成功。
12、 根据权利要求 8至 10任一项所述的网络设备, 其特征在于, 所述指示单元具体用于: 在译码成功之后,在预设的时隙位置上向所述语 音帧的发送设备反馈发射功率控制 TPC信息, 其中, 当所述语音帧的发送设 备在所述预设的时隙位置上接收到所述 TPC信息以指示译码成功。
13、 根据权利要求 12所述的网络设备, 其特征在于, 若在译码成功之前, 所述网络设备按每间隔一个时隙的方式向所述语音帧的发送设备反馈 TPC信 息, 则所述指示单元具体用于: 在多个连续时隙位置上向所述语音帧的发送设 备反馈 TPC信息。
14、 根据权利要求 12所述的网络设备, 其特征在于, 若在译码成功之前 在奇数时隙位置上向所述语音帧的发送设备反馈 TPC信息, 则所述指示单元 具体用于: 在偶数时隙位置上向所述语音帧的发送设备反馈 TPC信息。
PCT/CN2014/082059 2013-07-31 2014-07-11 一种语音帧的提前译码方法及网络设备 WO2015014201A1 (zh)

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Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1983913A (zh) * 2005-12-17 2007-06-20 华为技术有限公司 一种数据传输方法及系统
CN102823175A (zh) * 2009-09-22 2012-12-12 高通股份有限公司 用于无线通信的干扰消去

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1983913A (zh) * 2005-12-17 2007-06-20 华为技术有限公司 一种数据传输方法及系统
CN102823175A (zh) * 2009-09-22 2012-12-12 高通股份有限公司 用于无线通信的干扰消去

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