CN106375063B

CN106375063B - Data transmission method and equipment thereof

Info

Publication number: CN106375063B
Application number: CN201610771519.9A
Authority: CN
Inventors: 郑军艇; 李汪洋
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2020-02-21
Anticipated expiration: 2036-08-30
Also published as: CN106375063A

Abstract

The embodiment of the invention discloses a data transmission method and equipment thereof, which are used for combining a plurality of received AMR voice data packets of adaptive multi-rate technology into a frame protocol FP frame to be sent. The method provided by the embodiment of the invention comprises the following steps: receiving AMR voice data packets of a preset number of first services; synthesizing the AMR voice data packets with the preset number into FP frames; and sending the FP frame through a logical interface Iub between a radio network controller RNC and a base station. The method of the embodiment of the invention effectively improves the proportion of the effective data in the FP frame and improves the transmission efficiency.

Description

Data transmission method and equipment thereof

Technical Field

The present invention relates to the field of communications, and in particular, to a data transmission method and apparatus.

Background

The Universal Mobile Telecommunications System (UMTS) is a complete protocol stack for 3G GSM, which combines the air interface of Wideband Code Division Multiple Access (W-CDMA), the Mobile application core part of GSM, and the speech coding algorithms of GSM, such as AMR and EFR.

UMTS provides various services over Circuit Switched networks (CS), such as adaptive multi-rate speech coding (AMR) speech services in the context of satellite transmissions. Since satellite transmissions generally have low voice quality requirements and high costs, they tend to be used at low speeds of 4.75kbps for AMR voice traffic. The AMR speech service encapsulates frame protocol FP frames strictly according to the 3GPP25427 protocol, i.e. the radio network controller RNC or the base station will send a FP frame (containing an AMR speech packet) every other TTI, and receive a FP frame (containing an AMR speech packet) every other TTI at the same time. The TTI of the AMR voice service is 20ms, i.e., the air interface sends one voice data every 20ms, so that the RNC in the Iub communicates with the base station and sends data to the base station in a cycle of 20 ms.

Referring to the format of the AMR voice packet under the 3GPP 25427-a01 protocol, the data transmission efficiency of the AMR voice service of 4.75kbps in the satellite transmission scenario is as follows:

the following is the data transmission efficiency of the AMR voice service of 4.75kbps under the ordinary IP transmission scene as follows:

it can be seen that the fraction of FP frames other than payload is quite large, and the invalid protocol information in each packet is very large, resulting in inefficient data transfer. In a satellite transmission scenario, data transmission cost is very high, and higher transmission efficiency is required, and if the data transmission mode still encapsulates the FP frame strictly according to the 3GPP25427 protocol to perform the AMR voice service, considerable waste is caused.

Disclosure of Invention

The embodiment of the invention provides a data transmission method and equipment thereof, which are used for forming a plurality of received AMR voice data packets into an FP frame to be sent.

In view of this, a first aspect of an embodiment of the present invention provides a data transmission method, including:

when receiving the AMR voice data packets with the preset number of the first service, the AMR voice data packets with the preset number are included into an FP frame, and the FP frame is sent out through the Iub.

The proportion of effective data in the FP frame is effectively improved, and the transmission efficiency is improved.

Preferably, the preset number includes 5.

In practical operation, the number of 5 is a recommended value for balancing the compression effect and the delay deterioration degree, the greater the number, the greater the bandwidth saving, but the greater the delay increase, and the one more the multiplexed frame means that the unidirectional delay of 40ms is introduced.

Preferably, the first service includes the first service in uplink or the first service in downlink.

With reference to the first aspect, a first implementation manner of the first aspect of the embodiments of the present invention includes:

and intercepting the payloads of the AMR voice data packets with the preset number to be used as target payloads, and then adding a header to the target payloads to obtain an FP frame.

Preferably, the header includes a header under the 3GPP25427 protocol.

Only the payload part is acquired, most invalid data are removed, and when one FP frame is synthesized, the proportion of valid data in the FP frame is effectively improved.

With reference to the first aspect and the first implementation manner of the first aspect, a second implementation manner of the first aspect of the embodiments of the present invention includes:

unpacking the AMR voice data packets with the preset number to obtain the headers and the payloads of the AMR voice data packets with the preset number, then obtaining the payloads and abandoning the headers.

With reference to the first aspect and the first implementation manner of the first aspect, a third implementation manner of the first aspect of the embodiments of the present invention includes:

when receiving a first AMR voice data packet of a first service, firstly caching the first AMR voice data packet, then judging whether the number of the cached AMR voice data packets of the first service reaches the preset number, if not, continuously receiving a second AMR voice data packet of the first service, and if so, triggering the step of synthesizing an FP frame.

A second aspect of an embodiment of the present invention provides a data transmission device, including:

the receiving module is used for receiving AMR voice data packets with preset number of the first services; the synthesis module is used for synthesizing the preset number of AMR voice data packets received by the receiving module into FP frames; and a sending module, configured to send the FP frame synthesized by the synthesizing module through a logical interface Iub between the RNC and the base station.

With reference to the second aspect, a first implementation of the second aspect of the embodiments of the present invention includes:

the intercepting submodule is used for intercepting the payloads of the AMR voice data packets with the preset number received by the first receiving module; a forming submodule for forming the payloads of the preset number of AMR voice data packets intercepted by the intercepting submodule into a target payload; and the adding sub-module is used for adding a header to the target payload formed by the forming sub-module to obtain the FP frame.

With reference to the second aspect and the first implementation manner of the second aspect, a second implementation manner of the second aspect of the embodiments of the present invention includes:

the unpacking unit is used for unpacking the AMR voice data packets with the preset number received by the first receiving module to obtain the headers of the AMR voice data packets with the preset number and the payloads of the AMR voice data packets with the preset number; and the obtaining unit is used for obtaining the payloads of the AMR voice data packets with the preset number, which are obtained by unpacking by the unpacking unit.

With reference to the second aspect and the first implementation manner of the second aspect, a third implementation manner of the second aspect of the embodiments of the present invention includes:

the receiving submodule is used for receiving a first AMR voice data packet of a first service; a buffer submodule for buffering the first AMR voice data packet received by the first receiving submodule; a judging submodule, configured to judge whether the number of AMR voice packets of the first service cached by the caching submodule reaches the preset number; and the receiving submodule is also used for receiving the second AMR voice data packet of the first service if the judgment result of the judging submodule is negative.

A third aspect of an embodiment of the present invention provides a data transmission device, including:

a transceiver, a memory, a processor, and a bus; the transceiver, the memory and the processor are connected through the bus; the transceiver is used for receiving AMR voice data packets with preset number of the first services; the memory is used for storing programs and caching the preset number of AMR voice data packets of the first service received by the transceiver; the processor is used for executing the program and enclosing the AMR voice data with the preset number into frame protocol FP frames; the transceiver is also configured to transmit the FP frame over Iub.

According to the technical scheme, the embodiment of the invention has the following advantages:

because the first AMR voice data packet of the first service is received and cached, when the preset trigger condition is met, the cached payloads of the AMR voice data packets of the first service are synthesized into an FP frame, and then the FP frame is sent through a logic interface Iub between a Radio Network Controller (RNC) and a base station, under satellite transmission, the data transmission efficiency after AMR4.75kbps service 5 frame multiplexing improvement is as follows:

under the ordinary IP transmission scene, the data transmission efficiency after the 5 frames of the 4.75kbps service are multiplexed and improved is as follows:

therefore, the proportion of the effective data in the FP frame is effectively improved, and the transmission efficiency is improved.

Drawings

FIG. 1 is a block diagram of a data transmission system according to an embodiment of the present application;

fig. 2 is a schematic diagram of an embodiment of a data transmission method in an embodiment of the present application;

fig. 3 is a schematic diagram of an embodiment of a data transmission device in an embodiment of the present application;

fig. 4 is a schematic diagram of another embodiment of a data transmission device in an embodiment of the present application;

fig. 5 is a schematic diagram of another embodiment of a data transmission device in an embodiment of the present application;

fig. 6 is a schematic diagram of another embodiment of a data transmission device in an embodiment of the present application;

fig. 7 is a schematic diagram of an embodiment of a data transmission device in an embodiment of the present application.

Detailed Description

In order to make the technical solutions of the embodiments of the present invention better understood, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic diagram of a data transmission system, which includes an RNC and a plurality of base stations.

In the embodiment of the present invention, the RNC is a main network element in a third generation (3G) wireless network, and is a component of an access network, and is responsible for mobility management, call processing, link management, and handover mechanisms.

A Universal Terrestrial Radio Access Network (UTRAN) in a third generation mobile communication Network (3G) is composed of an RNC and a base station, where the RNC is an exchange and control element of the UTRAN. As a key network element RNC of a 3G network, it is mainly used to manage and control a plurality of base stations underneath it. The whole function of the RNC is divided into two parts: radio resource management functions and control functions. The radio resource management is mainly used for maintaining the stability of radio propagation and the service quality of radio connection; the control functions include all functions related to radio bearer establishment, maintenance and release.

In some possible embodiments, the internal components of the RNC may include a service processing subsystem, a switching subsystem, an operation and maintenance subsystem, an environment monitoring subsystem, and the like.

The service processing subsystem in the RNC is responsible for processing the basic service of the RNC. The service processing subsystem function is mainly realized by WRBS plug frame, and the main functions include: user data forwarding, system admission control, radio channel encryption and decryption, integrity protection, mobility management, radio resource management and control, cell broadcasting, media broadcasting, message tracking, RAN (radio Access network) information management, processing of packet data during Iu-PS interface IP transmission, low-speed transmission ports (E1/T1) for providing Iu, Iur and Iub externally, high-speed channelized STM-1 ports and FE transmission ports. The service processing subsystem can perform linear superposition according to the service requirement, thereby linearly increasing the service processing capacity of the system. The service processing subsystems can communicate with each other through the switching subsystem, so that the processing of the cooperative task, such as a switching function, is completed.

The exchange subsystem is mainly responsible for completing service exchange among the service processing subsystems and providing external interfaces. The switching subsystem is mainly realized by a WRSS plug-in frame, and the main functions comprise: providing a service flow channel for each service processing subsystem; providing an operation maintenance channel for foreground and background communication; when Iu-PS interface ATM transmits, provide the processing function of the packet service; non-channelized STM-1/OC-3c ports of an Iur interface, an Iu interface and an Iu interface and a non-channelized STM-4 port of the Iu interface are provided for the outside; an optional clock signal input interface.

The operation and maintenance subsystem is responsible for processing the operation and maintenance work of the RNC. One RNC only has one operation and maintenance subsystem, and the operation and maintenance subsystem mainly provides the following functions: the system comprises authority management, log management, configuration management, performance management, alarm management, loading management, message tracking and reviewing, real-time performance monitoring, fault detection and an interface externally provided to a network management platform.

The environment monitoring subsystem automatically monitors the running environment of the RNC and feeds back abnormal conditions in real time. The RNC environment monitoring subsystem is composed of a distribution box and environment monitoring components of each plug-in frame and is mainly responsible for monitoring a power supply, a fan, an entrance guard and water immersion.

It is noted that the RNC may include one or more of the above systems, and is not limited herein.

In the embodiments of the present invention, a base station, i.e., a public mobile communication base station, is a form of a radio station, which refers to a radio transceiver station that performs information transfer with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area. The construction of mobile communication base stations is an important part of the investment of mobile communication operators in China, and the construction of the mobile communication base stations is generally carried out around the factors of coverage, call quality, investment benefit, difficult construction, convenient maintenance and the like. With the development of mobile communication network services toward datamation and packetization, the development trend of mobile communication base stations is also inevitably to make the mobile communication base stations broadband, large coverage area construction and IP.

In some possible embodiments, the structure of the base station may generally comprise a BBU and an RRU, which are connected to an antenna feed system (antenna). RRUs can be specifically classified as superheterodyne intermediate frequency RRUs, zero intermediate frequency RRUs, and SDR ideal intermediate frequency RRUs. The superheterodyne intermediate frequency RRU is a frequency spectrum shift structure in which 2-level frequency spectrum shift is adopted for signal modulation and demodulation, that is, a complex intermediate frequency structure (so-called superheterodyne intermediate frequency structure) is implemented on a digital intermediate frequency channel and a radio frequency channel, respectively. In the zero intermediate frequency RRU, directly carrying out frequency spectrum shifting on a radio frequency channel; in the SDR ideal intermediate frequency RRU, the frequency spectrum shifting is directly completed on a digital intermediate frequency channel, and the AD/DA completely processes the signal digital-to-analog conversion of the radio frequency point.

In the embodiment of the present invention, Iub is a logical interface between the RNC and the base station, and is used to complete user data transmission between the RNC and the base station, processing of user data and signaling, and the like. It is a standard interface that allows interconnection of different vendors. Its functions may include managing the transmission resources of the Iub, base station logical operation maintenance, transmission operation maintenance signaling, system information management, dedicated channel control, common channel control and timing, and synchronization management, etc.

In the embodiment of the present invention, Iub may also be understood as being mainly used for transmitting data streams of signaling-related radio applications, various DCHs, RACH, FACH, DSCH, USCH, PCH, etc. of Iub. The Iub is a logical interface between the RNC and the base station, and is used for completing user data transmission between the RNC and the base station, processing of user data and signaling, and logical O & M of the base station.

The RNC and base station may be shown in other more general configurations than those described above. For the RNC, the processor/processing circuitry, memory, and interfaces (including interfaces to core network equipment, interfaces to base stations) may be embodied primarily. For a base station, processor/processing circuitry, memory, transceivers, etc. may be embodied.

In the embodiment of the invention, the UMTS can provide AMR voice service under a satellite transmission scene on a circuit switching network CS domain. However, satellite transmission generally requires less voice quality and is more costly, and thus the lower rate of 4.75kbps has been selected as AMR voice service. In this scenario, the AMR voice service encapsulates FP frames strictly according to the 3GPP25427 protocol, that is, only one TTI is left between two FP frames transmitted between the RNC and the base station, that is, one FP frame only contains one AMR voice packet. The transmission efficiency of the AMR speech service thus obtained is as follows:

the transmission efficiency of the AMR voice service of 4.75kbps under the ordinary IP transmission scene is as follows:

it should be appreciated that the fraction of the FP frame that is occupied by invalid data is quite large, making data transfer inefficient. In the satellite transmission scenario, because the transmission cost is high, high transmission efficiency is required, and if an AMR voice packet is still encapsulated by one FP frame to perform an AMR voice service strictly according to the 3GPP25427 protocol, considerable waste is caused.

Therefore, in the embodiment of the present invention, by receiving the first AMR voice packet of the first service, and caching the first AMR voice packet, when the preset trigger condition is met, the cached payloads of the plurality of AMR voice packets of the first service are synthesized into an FP frame, and then the FP frame is sent through the logical interface Iub between the radio network controller RNC and the base station, so as to effectively increase the proportion of the effective data in the FP frame, and improve the transmission efficiency.

For convenience of understanding, a specific flow in the embodiment of the present application is described below, and referring to fig. 2, an embodiment of a data transmission method in the embodiment of the present application includes:

201. and receiving a first AMR voice data packet of the first service.

In the embodiment of the invention, the AMR voice data packet is a voice compression code which is formulated by 3GPP and applied to a third generation mobile communication W-CDMA system, and the rate distribution problem of information source and channel coding is solved more intelligently, so that the configuration and the utilization of wireless resources are more flexible and efficient. In some possible embodiments, AMR voice services support eight rates: 12.2kb/s, 10.2kb/s, 7.95kb/s, 7.40kb/s, 6.70kb/s, 5.90kb/s, 5.15kb/s and 4.75kb/s, and in addition, nine rates are supported in wideband AMR voice service: 6.6kb/s, 8.85kb/s, 12.65kb/s, 14.25kb/s, 15.85kb/s, 18.25kb/s, 19.85kb/s, 25.05kb/s and 23.85 kb/s. In other possible embodiments, it also includes a low rate (1.80kb/s) background noise coding mode.

In some possible embodiments, it is difficult for a mobile communication system to always operate at an optimal source and channel coding rate due to drastic changes in the transmission environment. Therefore, under non-ideal channel conditions, the number of redundant bits of the channel coding is not sufficient to correct transmission errors, and the number of redundant bits in the channel coding should be increased and the number of source coding bits should be decreased to improve the quality of speech. Therefore, the speech coding of UMTS systems (WCDMA and TD-SCDMA) preferably uses Adaptive Multi-rate (Adaptive Multi-rate) speech coders, the basic idea being to jointly adapt the source and channel coding modes to the current channel conditions and traffic size, i.e. the actual speech coding rate depends on the channel conditions and is a function of the channel quality, and the AMR speech packets use an Adaptive algorithm to select the best speech coding rate.

AMR provides a set of coding rates, unlike the traditional FR, HR, and EFR speech coding rate fixes in GSM systems. After the AMR function is started, the voice coding rate can be adjusted according to the wireless environment quality: when the wireless environment is better, the transmission error rate is low, the voice coding rate is improved (more characters are used for voice coding), and high-quality voice is obtained; when the wireless environment is poor, the transmission error rate is high, the voice coding rate is reduced, more bit numbers can be distributed to channel coding to realize error correction, more reliable error control is realized, and the voice quality is improved.

AMR speech packets allow eight rate codecs for speech signals, which are based on Algebraic Code Excited Linear Prediction (ACELP) coding modes, where the encoder input is 8KHz sampled, 16 bit quantized linear PCM coding, with 20ms speech as a frame, i.e., 160 samples.

In the embodiment of the present invention, the communication process is a communication process between an RNC and a base station, and the execution subject may be the RNC or the base station, which is not limited herein.

In some possible embodiments, the AMR voice packet may be received via Iub or via other interfaces, which are not limited herein. It should be noted that if receiving the AMR voice packet from the Iub is, communication between the RNC and the base station, if the AMR voice packet is not received from the Iub, communication between the non-RNC and the base station is, that is, the RNC may communicate with network devices other than the base station, such as a core network or other RNCs, or the base station communicates with network devices other than the RNC, such as a terminal or other base stations, which is not limited herein.

It should be noted that, if the downlink AMR voice packet received by the RNC is received from the Iu interface or the Iur interface, the uplink AMR voice packet received by the base station is received from the Uu interface.

202. The first AMR voice data packet is buffered.

In the embodiment of the invention, in the communication between the RNC and the base station, when the receiving equipment (RNC or base station) receives the AMR voice data packet, the AMR voice data packet is temporarily not sent out, but is buffered, and the AMR voice data packet is sent again or not when the triggering condition is met.

203. And judging whether the number of the buffered AMR voice data packets of the first service reaches the preset number.

In some possible embodiments, the triggering condition may be that the number of the buffers reaches a preset number, in other possible embodiments, a timer may be set for the triggering condition, and the AMR voice packets received within a certain time are sent together, and in other possible embodiments, how many AMR voice packets are used to be sent together at a time may also be preset, which is not limited herein. Preferably, the number of the preset units may be set to be 5.

204. Unpacking the AMR voice data packets with the preset number to obtain the headers of the AMR voice data packets with the preset number and the payloads of the AMR voice data packets with the preset number.

In the embodiment of the present invention, the valid data of an AMR voice data packet may be a payload thereof, and specifically, please refer to the 3GPP25427 protocol, which is not described herein again.

The following description will take an example in which AMR speech service is retransmitted in buffered 5 frames. When the RNC or the base station receives the first AMR voice data packet, 4 AMR voice data packets can be received again, 5 AMR voice data packets are made up, that is, 80ms (the ITI of AMR is 20ms) is waited again, and then the payload in the AMR voice data packet, that is, the valid data, is intercepted. It should be understood that the plurality of AMR voice packets can be 5 AMR voice packets.

In some feasible embodiments, the preset number of AMR voice packets that can be obtained first are unpacked to obtain the headers of the preset number of AMR voice packets and the payloads of the preset number of AMR voice packets. Optionally, the received AMR voice data packets may be unpacked first, and when a preset number of AMR voice data packets are received, the preset number of AMR voice data packets may be unpacked, which is not limited here.

205. And acquiring the payloads of the AMR voice data packets with the preset number.

When the packets are unpacked for the AMR voice data packets of the preset number, the payloads of the AMR voice data packets of the preset number can be obtained, and it should be noted that the payloads are the effective parts of the AMR voice data packets.

206. And forming the payloads of the AMR voice data packets with the preset number into a target payload.

In some possible embodiments, after the payloads of the preset number of AMR voice data packets are obtained, the payloads of the preset number of AMR voice data packets may be configured into a target payload, and the target payload may be further processed.

207. And adding a header to the target payload to obtain the FP frame.

In the embodiment of the invention, the FP frame is a data format transmitted between the RNC and the base station through the Iub. It should be noted that the embodiment of the present invention is an improvement at Iub on the application layer, and is an improvement of the non-transport layer.

In the embodiment of the present invention, when the payloads of a plurality of AMR voice packets are intercepted, the payloads of the plurality of AMR voice packets may be synthesized into one FP frame, and the FP frame may be represented by using the following data format.

In the embodiment of the present invention, similar to the 3GPP25427 protocol, the format of the uplink FP frame may be:

similar to the 3GPP25427 protocol, the downlink FP frame format may be:

therefore, under satellite transmission, the improved data transmission efficiency of the amr4.75kbps service 5 frame multiplexing is as follows:

in other possible embodiments, the embodiments of the present invention may also be used in other scenarios, which are not limited herein, as long as the payload of the data packet is small and the data transmission cost is large.

208. The FP frame is sent over a logical interface Iub between the radio network controller RNC and the base station.

In the embodiment of the invention, when the FP frame is synthesized, the FP frame can be sent out. Note that the FP frame needs to be sent between the RNC and the base station over Iub. Therefore, the proportion of effective data in the FP frame is effectively improved, and the transmission efficiency is improved.

In addition, it should be understood that, when the RNC sends the FP frame to the base station or the base station sends the FP frame to the RNC, the receiving end may parse out a plurality of voice data packets in the received FP frame and then send out one by one every 20ms strictly according to the protocol. If the data packet is a downlink AMR voice data packet, the receiving and analyzing module is at the base station and sends the data packet to the Uu interface after analysis; if it is an uplink AMR voice packet, the receiving and analyzing module is sending to Iu or Iur after being analyzed by RNC.

Referring to fig. 3, an embodiment of a data transmission apparatus 300 according to an embodiment of the present application includes:

the receiving module 301 is configured to receive AMR voice packets of a preset number of the first services.

A synthesizing module 302, configured to synthesize the preset number of AMR speech packets received by the receiving module 301 into an FP frame.

A sending module 303, configured to send the FP frame synthesized by the synthesizing module 302 through Iub.

Referring to fig. 4, in another embodiment of a data transmission apparatus 300 in the embodiment of the present application, the combining module 302 includes:

an intercepting submodule 3021, configured to intercept the payloads of the AMR voice data packets of the preset number received by the receiving module 301.

A sub-module 3022, configured to configure the payloads of the AMR voice data packets of the preset number intercepted by the intercepting sub-module 3021 into a target payload.

An adding sub-module 3023, configured to add a header to the target payload composed by the composing sub-module 3022, so as to obtain the FP frame.

Referring to fig. 5, in another embodiment of a data transmission apparatus 300 in the embodiment of the present application, the intercepting submodule 3021 includes:

an unpacking unit 30211, configured to unpack the preset number of AMR voice data packets received by the receiving module, so as to obtain headers of the preset number of AMR voice data packets and payloads of the preset number of AMR voice data packets.

An obtaining unit 30212, configured to obtain payloads of the AMR voice data packets with the preset number, obtained by unpacking by the unpacking unit.

Referring to fig. 6, in another embodiment of a data transmission device 300 in the embodiment of the present application, the receiving module 301 includes:

and the receiving submodule 3011 is configured to receive a first AMR voice packet of the first service.

The buffer submodule 3012 is configured to buffer the first AMR voice packet received by the receiving submodule 3011.

The determining sub-module 3013 is configured to determine whether the number of the AMR voice packets of the first service cached by the caching sub-module 3012 reaches the preset number.

The receiving sub-module 3011 is further configured to receive the second AMR voice packet of the first service if the determining result of the determining sub-module 3013 is negative.

Referring to fig. 7, an embodiment of a data transmission apparatus 400 according to an embodiment of the present application includes:

a transceiver 401, a memory 402, a processor 403, and a bus 404.

The transceiver 401, the memory 402 and the processor 403 are connected by the bus 404.

The transceiver 401 is configured to receive a preset number of AMR voice packets of the first service.

The transceiver 401 may include a communication interface between the processor 403 and a standard communication subsystem.

The transceiver 401 may further include a communication interface under the EIA-RS-232C standard, that is, a communication interface of the technical standard of a serial binary Data exchange interface between Data Terminal Equipment (DTE) and Data Communication Equipment (DCE), or a communication interface under the RS-485 protocol, which is not limited herein.

The memory 402 is used for storing a program and the preset number of AMR voice packets received by the transceiver 401.

The memory 402 may include volatile memory (volatile memory), such as random-access memory (RAM). The memory 402 may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a Hard Disk Drive (HDD), or a solid-state drive (SSD). The memory 402 may also include a combination of memories of the above-mentioned kinds, which is not limited herein.

Optionally, the memory 402 may also be used for storing program instructions, and the processor 403 may call the program instructions stored in the memory 402.

The processor 403 is configured to execute the program to synthesize the preset number of AMR speech packets into the FP frame.

The processor 403 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP.

The processor 403 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.

The transceiver 401 is further configured to transmit the FP frame via the Iub.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

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

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method of data transmission, comprising:

receiving a preset number of self-adaptive multi-rate technology AMR voice data packets of a first service;

the AMR voice data with the preset number is included into a frame protocol FP frame;

sending the FP frame through a logic interface Iub between a radio network controller RNC and a base station;

the preset number comprises 5.

2. The method of claim 1, wherein said grouping said preset number of AMR speech data into a frame protocol FP frame comprises:

intercepting the payloads of the AMR voice data packets with the preset number;

forming the payloads of the AMR voice data packets with the preset number into a target payload;

and adding a header to the target payload to obtain the FP frame.

3. The method of claim 2, wherein said intercepting the payloads of said preset number of AMR voice packets comprises:

unpacking the AMR voice data packets with the preset number to obtain the headers of the AMR voice data packets with the preset number and the payloads of the AMR voice data packets with the preset number;

and acquiring the payloads of the AMR voice data packets with the preset number.

4. The method of claim 2, wherein the header comprises a header under a 3GPP25427 protocol.

5. The method according to claim 1 or 2, wherein said receiving a preset number of AMR voice packets of the first service comprises:

receiving a first AMR voice data packet of a first service;

caching the first AMR voice data packet;

judging whether the number of the cached AMR voice data packets of the first service reaches the preset number or not;

if not, receiving a second AMR voice data packet of the first service;

if yes, triggering the step of combining the AMR voice data packets with the preset number into an FP frame.

6. The method of claim 1 or 2, wherein the first traffic comprises the first traffic of an uplink or the first traffic of a downlink.

7. A data transmission device, comprising:

the receiving module is used for receiving AMR voice data packets with preset number of the first services;

the synthesis module is used for synthesizing FP frames from the AMR voice data packets with the preset number received by the receiving module;

a sending module, configured to send, over Iub, the FP frame synthesized by the synthesis module;

the preset number comprises 5.

8. The apparatus of claim 7, wherein the synthesis module comprises:

the intercepting submodule is used for intercepting the payloads of the AMR voice data packets with the preset number received by the receiving module;

the composition submodule is used for composing the payloads of the AMR voice data packets of the preset number intercepted by the interception submodule into a target payload;

and the adding sub-module is used for adding a header to the target payload formed by the forming sub-module to obtain the FP frame.

9. The apparatus of claim 8, wherein the truncation sub-module comprises:

the unpacking unit is used for unpacking the AMR voice data packets with the preset number received by the receiving module to obtain the headers of the AMR voice data packets with the preset number and the payloads of the AMR voice data packets with the preset number;

and the obtaining unit is used for obtaining the payloads of the AMR voice data packets with the preset number, which are obtained by unpacking by the unpacking unit.

10. The apparatus of claim 8, wherein the receiving module comprises:

the receiving submodule is used for receiving a first AMR voice data packet of a first service;

the buffer submodule is used for buffering the first AMR voice data packet received by the receiving submodule;

the cache submodule is used for caching the AMR voice data packets of the first service in the first service;

and the receiving submodule is also used for receiving the second AMR voice data packet of the first service if the judgment result of the judging submodule is negative.

11. A data transmission device, comprising:

a transceiver, a memory, a processor, and a bus;

the transceiver, the memory, and the processor are connected by the bus;

the transceiver is used for receiving AMR voice data packets with preset number of the first services;

the memory is used for storing programs and caching the AMR voice data packets of the preset number of the first services received by the transceiver;

the processor is used for executing the program and enclosing the AMR voice data with the preset number into a frame protocol FP frame;

the transceiver is further configured to send the FP frame over Iub;

the preset number comprises 5.