CN109729553A - The voice service processing method and equipment of LTE trunked communication system - Google Patents
The voice service processing method and equipment of LTE trunked communication system Download PDFInfo
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Abstract
The embodiment of the present invention provides the voice service processing method and equipment of a kind of LTE trunked communication system, wherein, this method comprises: receiving the configuration information of evolved packet system EPS carrying, it include that narrowband speech encodes NVOC information in the configuration information, the carrying of EPS described in the NVOC information representation carries out message sink coding using NVOC coding mode；EPS carrying is established according to the configuration information, and carries out the processing of L2 and L1 to the high level data in the EPS carrying using the corresponding data link layer L2 of the NVOC coding mode and physical layer L1 processing method.The embodiment of the present invention can be encoded by narrowband speech and carry out message sink coding to the Voice traffic data in LTE trunked communication system, and give the processing scheme of corresponding L2 and L1, have the advantages that the message sink coding code rate of output is lower.
Description
Technical field
The present embodiments relate at field of communication technology more particularly to a kind of voice service of LTE trunked communication system
Manage method and apparatus.
Background technique
With wireless to uplink and downlink in emergency command scheduling, large public activity command scheduling and mobile law enforcement on duty
The demand of communication bandwidth is increasing, Long Term Evolution (Long Term Evolution, abbreviation LTE) trunked communication system
It comes into being.
Existing LTE trunked communication system generallys use adaptive multi-rate (Adaptive Mulit-Rat, abbreviation AMR)
Speech coder carries out message sink coding to the voice service of system, and the message sink coding mode bit rate output is higher.
Summary of the invention
The embodiment of the present invention provides the voice service processing method and equipment of a kind of LTE trunked communication system, in LTE
It is encoded in trunked communication system using narrowband speech, reduces the bit rate output of message sink coding.
First aspect of the embodiment of the present invention provides a kind of voice service processing method of LTE trunked communication system, this method
Include:
The configuration information of evolved packet system EPS carrying is received, includes that narrowband speech encodes NVOC in the configuration information
Information, the carrying of EPS described in the NVOC information representation carry out message sink coding using NVOC coding mode；
EPS carrying is established according to the configuration information, and using the corresponding data link layer L2 of the NVOC coding mode
The processing of L2 and L1 is carried out to the high level data in the EPS carrying with physical layer L1 processing method.
Optionally, described that the EPS is held using the NVOC coding mode corresponding data link layer L2 processing method
High level data in load carries out L2 processing, comprising:
When the EPS carries no corresponding Packet Data Convergence Protocol PDCP entity and wireless spread-spectrum technology RLC entity
When, the data in the EPS carrying are mapped directly on corresponding Dedicated Traffic Channel DTCH, it will be described by the DTCH
Data in EPS carrying are sent to MAC layer,
Alternatively, when the EPS carries no corresponding PDCP entity, when using transparent mode TM RLC entity, the EPS
Data in carrying are mapped on corresponding DTCH after the processing of the transparent transmission of TM RLC entity, will be at transparent transmission by the DTCH
Data after reason are sent to MAC layer；
The data received are sequentially assembled into MAC PDU by the MAC layer, and pass through corresponding transmission channel for institute
It states MAC PDU and is sent to physical layer, the MAC PDU does not carry MAC header.
Optionally, described that the EPS is held using the NVOC coding mode corresponding data link layer L2 processing method
High level data in load carries out L2 processing, comprising:
When EPS carrying includes PDCP entity, when not including RLC entity, described in the data process in the EPS carrying
It is mapped to after PDCP entity handles on corresponding DTCH, the data in the EPS carrying is sent to by MAC layer by the DTCH,
Alternatively, the data warp when EPS carrying includes PDCP entity, when using TM RLC entity, in the EPS carrying
It is mapped to corresponding DTCH after crossing the transparent transmission processing of the PDCP entity handles and the TM RLC entity, it will by the DTCH
Data after the PDCP entity handles and the TM RLC entity handles are sent to MAC layer；
The data received are sequentially assembled into MAC PDU by the MAC layer, and pass through corresponding transmission channel for institute
It states MAC PDU and is sent to physical layer, the MAC PDU does not carry MAC header.
Optionally, it is described using the corresponding L1 processing method of the NVOC coding mode to the high level in the EPS carrying
Data carry out L1 layers of processing, comprising:
Channel volume is carried out to the data on corresponding transmission channels using tail biting convolutional encoding mode or TURBO coding mode
Code, and channel decoding is carried out to the data on corresponding transmission channels using corresponding channel decoding process, wherein it is described
The code rate of TURBO coding mode is the arbitrary bit rate in addition to 1/3 code rate.
Optionally, the down direction of the EPS carrying is mapped on DSCH Downlink Shared Channel DL-SCH, the DL-SCH mapping
Onto Physical Downlink Shared Channel PDSCH；
The up direction of the EPS carrying is mapped on Uplink Shared Channel UL-SCH, and the UL-SCH is mapped to physics
On Uplink Shared Channel PUSCH.
Second aspect of the embodiment of the present invention provides a kind of terminal device, comprising:
Receiving module includes narrowband in the configuration information for receiving the configuration information of evolved packet system EPS carrying
Voice coding NVOC information, the carrying of EPS described in the NVOC information representation carry out message sink coding using NVOC coding mode；
Processing module, for establishing EPS carrying according to the configuration information, and it is corresponding using the NVOC coding mode
Data link layer L2 and physical layer L1 processing method carry out the processing of L2 and L1 to the high level data in the EPS carrying.
Optionally, the processing module, comprising:
First mapping submodule, for when the EPS carry no corresponding Packet Data Convergence Protocol PDCP entity and
When wireless spread-spectrum technology RLC entity, the data in the EPS carrying are mapped directly into corresponding Dedicated Traffic Channel DTCH
On, the data in the EPS carrying are sent to by MAC layer by the DTCH,
Alternatively, when the EPS carries no corresponding PDCP entity, it, will be described when using transparent mode TM RLC entity
Data in EPS carrying are mapped on corresponding DTCH after the processing of the transparent transmission of TM RLC entity, will be saturating by the DTCH
Pass that treated that data are sent to MAC layer；
First MAC layer handles submodule, the data received is sequentially assembled into MAC PDU, and by corresponding
The MAC PDU is sent to physical layer by transmission channel, and the MAC PDU does not carry MAC header.
Optionally, the processing module, comprising:
Second mapping submodule, will be described when not including RLC entity for including PDCP entity when EPS carrying
Data in EPS carrying are mapped on corresponding DTCH after the PDCP entity handles, by the DTCH by the EPS
Data in carrying are sent to MAC layer,
Alternatively, when EPS carrying includes PDCP entity, when using TM RLC entity, by the data in the EPS carrying
It is mapped to corresponding DTCH after the processing of the transparent transmission of the PDCP entity handles and the TM RLC entity, passes through the DTCH
Data after the PDCP entity handles and the TM RLC entity handles are sent to MAC layer；
Second MAC layer handles submodule, for the data received to be sequentially assembled into MAC PDU, and passes through phase
The MAC PDU is sent to physical layer by the transmission channel answered, and the MAC PDU does not carry MAC header.
Optionally, the processing module, comprising:
First processing submodule, for using tail biting convolutional encoding mode or TURBO coding mode to corresponding transmission channels
On data carry out channel coding, and using corresponding channel decoding process on corresponding transmission channels data carry out channel
Decoding, wherein the code rate of the TURBO coding mode is the arbitrary bit rate in addition to 1/3 code rate.
Optionally, the down direction of the EPS carrying is mapped on DSCH Downlink Shared Channel DL-SCH, the DL-SCH mapping
Onto Physical Downlink Shared Channel PDSCH；
The up direction of the EPS carrying is mapped on Uplink Shared Channel UL-SCH, and the UL-SCH is mapped to physics
On Uplink Shared Channel PUSCH.
In embodiments of the present invention, by receiving the configuration information of evolved packet system EPS carrying, in the configuration information
NVOC information is encoded including narrowband speech, the carrying of EPS described in the NVOC information representation carries out information source using NVOC coding mode
Coding；EPS carrying is established according to the configuration information, and using the corresponding data link layer L2 of the NVOC coding mode and object
Manage the processing that layer L1 processing method carries out L2 and L1 to the high level data in the EPS carrying.It is logical in LET cluster to realize
The purpose of message sink coding is carried out in letter system using narrowband speech coding mode, while giving the processing side of corresponding L2 and L1
Case has the advantages that message sink coding bit rate output is low.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of process of the voice service processing method for LTE trunked communication system that one embodiment of the invention provides
Figure；
Fig. 2 is a kind of structural schematic diagram for terminal device that one embodiment of the invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The term " includes " of description and claims of this specification and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, the device of the process or structure that contain series of steps is not necessarily limited to clearly arrange
Those of out structure or step but may include other steps being not clearly listed or intrinsic for these processes or device
Rapid or structure.
In the prior art, police digital cluster system (PDT) be it is a kind of using proprietary narrowband speech coding mode into
The trunked communication system of row message sink coding.The bit rate output of message sink coding is 2.4kbps or 2.15kbps in the system, correspondingly
The speech frame of each 20ms exports 48 or 43 bit informations.Channel coding uses forward error correction coding (FEC), and each speech frame exists
72 bit informations are exported after channel coding.PDT uses 4FSK modulation system, every 2 bits pair in modulation to voice service
Answer a 4FSK symbol.Due to common in the narrowband speech coding mode that is used in PDT system and LTE trunked communication system
AMR voice coding modes are compared to having the advantages that message sink coding bit rate output is low, and therefore, the embodiment of the present invention will be in PDT system
The narrowband speech coding mode used is applied in LTE trunked communication system the bit rate output for reducing message sink coding, below will
Message sink coding is carried out to how narrowband speech coding mode being applied in LTE trunked communication system in conjunction with specific embodiments,
And how L2 processing, channel coding and modulation is carried out to the Voice traffic data exported after narrowband speech coding and is illustrated:
Referring to Fig. 1, Fig. 1 is a kind of voice service processing side for LTE trunked communication system that one embodiment of the invention provides
The flow chart of method, this method can be executed by terminal device or base station.As shown in Figure 1, this method comprises the following steps:
Step 101 receives the configuration information that evolved packet system EPS is carried, and includes narrowband speech in the configuration information
NVOC information is encoded, the carrying of EPS described in the NVOC information representation carries out message sink coding using NVOC coding mode.
Step 102 establishes EPS carrying according to the configuration information, and using the corresponding data of the NVOC coding mode
Link layer L2 and physical layer L1 processing method carry out the processing of L2 and L1 to the high level data in the EPS carrying.
As shown in Table 1 and Table 2, in LTE system, channel coding method and transmission channel kinds or information type are bound.
NVOC coding mode is a kind of message sink coding mode of voice service, and the EPS carrying of carrying NVOC voice service is corresponding to patrol
Collecting channel should be Dedicated Traffic Channel (DTCH), and according to the direction of carrying: uplink (UL) or downlink (DL) carry corresponding biography
Defeated channel is Uplink Shared Channel (UL-SCH) or DSCH Downlink Shared Channel (DL-SCH).
UL-SCH and DL-SCH is respectively mapped on physical channel PUSCH and PDSCH.The modulation that PUSCH and PDSCH is supported
Mode is shown in Table 3 and table 4 respectively.The modulation system used when sending PUSCH and PDSCH every time is appointed as PUSCH by scheduling information
The a certain kind in modulation system supported with PDSCH.
Table 1
Table 2
Table 3
| Physical channel | Modulation system |
| PUSCH | QPSK,16QAM,64QAM,256QAM |
Table 4
| Physical channel | Modulation system |
| PDSCH | QPSK,16QAM,64QAM,256QAM |
In the present embodiment, when terminal device initiates concentrated speech business, the actively EPC into LTE trunked communication system
Voice service request is sent, and adds its information for supporting narrowband speech coding in voice service request.EPC is receiving language
After sound business request, if being resolved to terminal device has narrowband speech encoding function, establish using narrowband speech coding staff
Formula carries out the EPS carrying of message sink coding, and the EPS configuration information carried is sent to base station, and base station determines that the EPS is carried on
The configuration information of L2 and L1 is carried and is sent to end in the configuration information that the EPS is carried by the configuration of the L2 and L1 of Uu interface
End equipment, wherein if base station, which detects, carries NVOC information in the configuration information, after establishing corresponding EPS carrying, root
According to the processing method pair of data link layer (L2) and physical layer (L1) corresponding when making an appointment using NVOC coding mode
High level data in the EPS carrying carries out the processing of L2 and L1.Wherein, uplink is mapped in up direction EPS carrying to share
Channel (UL-SCH), UL-SCH are mapped on Physical Uplink Shared Channel (PUSCH), are mapped in down direction EPS carrying
DSCH Downlink Shared Channel (DL-SCH), DL-SCH are mapped on Physical Uplink Shared Channel (PDSCH).
Optionally, the processing method of L2 can be any one following in the present embodiment:
In a kind of possible mode, the data processing side of the data processing method of L2 compared with the L2 of 3GPP protocol definition
Formula.
It include: that Packet Data Convergence Protocol (PDCP) layer, wireless spread-spectrum technology (RLC) layer and media are visited in existing L2
Ask control (MAC) layer.The data processing method of L2 is as follows:
The EPS of voice service is carried on the PDCP layer of L2 and rlc layer is respectively provided with corresponding PDCP entity and RLC entity.
After processing of the Voice traffic data by PDCP entity and RLC entity in the EPS carrying, believed by corresponding dedicated service
(DTCH) is sent to MAC layer in road.Here, according to 3GPP agreement, the RLC entity that EPS carrying uses is UM RLC entity or AM
RLC entity.
MAC layer supports each logic channel of terminal device in the multiplexing of same subframe.MAC layer is assembled according to scheduling information
Medium Access Control (MAC) Protocol Data Unit (PDU).The MAC PDU can be by the MAC Service Data Unit on multiple logic channels of terminal device
(SDU) assemble.
MAC PDU is sent to physical layer by the corresponding transmission channel of the carrying by MAC layer.On up direction, EPS carrying
MAC PDU physical layer is sent to by UL-SCH；MAC PDU on down direction, EPS carrying is sent to physics by DL-SCH
Layer.UL-SCH/DL-SCH is that unit carries out channel coding with transmission block (TB).Here, MAC PDU carry MAC header, RLC head and
The bit of PDCP head, non-speech frame payload is more.
It is exemplary, in this data processing method, the voice industry of message sink coding is carried out using narrowband speech coding mode
It is engaged in exporting the payload after message sink coding as unit of the speech frame of 20ms, each speech frame includes 48 bits when not encrypting,
It include the payload of 43 bits and the encryption vector of 5 bits in encryption.
Here, the speech frame in EPS carrying can be the speech frame not encrypted, or the speech frame of encryption.Add
The Voice Encryption algorithm that the Encryption Algorithm that close speech frame uses is supported for PDT system.The present embodiment preferably use does not encrypt
Speech frame.
The length for the speech frame not encrypted is 48 bits or 43 bits.The EPS carrying configuration information when establishing EPS carrying
In guarantee bit rate (GBR) length of speech frame can be identified.GBR is that 2.4kbps or 2.15kbps is indicated respectively accordingly
Voice frame length be 48 bits or 43 bits.When GBR is 2.15kbps rate and encrypts, voice frame length is 48 bits.
Certainly it is only for illustrating rather than to unique restriction of the invention.
In another possible mode, EPS carries no corresponding PDCP entity, without corresponding RLC entity or adopts
With transparent mode (transparant mode, abbreviation TM) RLC entity.Voice traffic data in the EPS carrying directly maps
It is mapped on corresponding DTCH onto corresponding DTCH, or after the processing of the transparent transmission of TM RLC entity.Then, by corresponding
DTCH is sent to MAC layer.
In this fashion, MAC layer does not support that the EPS carries corresponding DTCH and other logic channels of terminal device exist
Same subframe is multiplexed.EPS is carried the MAC SDU on corresponding DTCH and is sequentially assembled by MAC layer according to scheduling information
MAC PDU, and physical layer is given using MAC PDU as the TB on corresponding transmission channels.MAC PDU is by one or more MAC SDU
It cascades, if the MAC PDU of synthesis is unsatisfactory for byte-aligned, adds patch bit at end.
In this fashion, MAC PDU does not have PDCP, RLC head and MAC header, and the Voice traffic data in EPS carrying can
The speech frame thinking encryption or not encrypting.The present embodiment is preferably using the speech frame of encryption.
In another possible mode, EPS carries corresponding PDCP entity, without corresponding RLC entity or use
TM (transparant mode: transparent mode) RLC entity.Voice traffic data in EPS carrying passes through the place of PDCP entity
Reason maps directly on corresponding DTCH, or is mapped to accordingly after the processing of the transparent transmission of PDCP entity handles and TM RLC entity
DTCH on.Then, MAC layer is sent to by corresponding DTCH.
In this fashion, the processing of MAC layer is with the possible mode of former, and the Voice traffic data in EPS carrying
It can be encryption or the speech frame not encrypted.The present embodiment preferably could be used without the speech frame of encryption.MAC PDU does not have
MAC header and RLC head, redundant bit are less.
In the present embodiment, the processing method of L1 includes, to the coding process of UL-SCH/DL-SCH, and to corresponding
The modulation treatment of PUSCH/PDSCH, wherein the modulated process of PUSCH/PDSCH is same as the prior art in the present embodiment, to adjust
For process processed, key step has bit scramble, symbol-modulated, layer mapping, the mapping of layer to antenna port, RE mapping and base band
Signal generates.Wherein, any one in the Different Modulations that the modulation system used in symbol-modulated is supported for PDSCH.
The modulation system that PDSCH is supported includes: QPSK, 16QAM, 64QAM and 256QAM.
Specifically, the channel coding method of UL-SCH/DL-SCH can be any one in following in the present embodiment:
In a kind of possible mode, the channel coding method of UL-SCH/DL-SCH is identical as existing coding mode.
The channel coding method of UL-SCH/DL-SCH includes multiple steps in the prior art, and main step has: the circulation of transmission block
Verify the cascade of the addition of (CRC) code, code block segmentation and the addition of code block CRC code, channel coding, rate-matched and code block.Wherein,
Channel coding is encoded using 1/3TURBO.Wherein, coding mode is 1/3TURBO coding in channel coding, exports 3 bit streams；
In rate-matched sub-block intertexture is carried out to 3 bit streams respectively, bit collection then is executed to 3 bit streams, bit selects
With punching.Since channel coding method in this case is same as the prior art, do not repeat them here herein.
In alternatively possible mode, tail biting convolutional encoding mode is used on UL-SCH and DL-SCH, encodes code
Rate is 1/3 code rate or other code rates, or uses TURBO coding mode, the code rate of TURBO coding mode be except 1/3 code rate with
Outer arbitrary bit rate.Bit stream after UL-SCH and DL-SCH upper signal channel coding is respectively mapped on PUSCH and PDSCH,
The modulation system of PUSCH and PDSCH compared with PUSCH and PDSCH modulation system.When UL-SCH and DL-SCH uses non-1/
When tail biting convolutional encoding or the TURBO coding of 3 code rates, N number of bit stream is exported in channel coding；To N number of in rate-matched
Bit stream carries out sub-block intertexture respectively, then executes bit collection, bit selection and punching to N number of bit stream.Here, N is determined
In code rate, such as: to the channel coding of 1/2 code rate, N=2, to the channel coding of 1/4 code rate, N=4.
In existing LTE system, UL-SCH/UL-SCH is encoded using 1/3 code rate TURBO.It is assisted in 3GPP TS36.213
In view in PDSCH correlated process or PUSCH correlated process, according to MCS subscript IMCSDetermine transmission block on UL-SCH/DL-SCH
Modulation system and ITBS.The length of the upper transmission block of UL-SCH/DL-SCH is decided by ITBS, radio bearer RB number and the number of plies.It is different
The number of plies correspond to different transport block length tables.The input of each transport block length table are as follows: ITBSWith RB number, output are as follows:
The length of transmission block.Corresponding table in TS36.213 protocol section 7 is looked into according to the number of plies, it can be by ITBSIt determines and transmits with RB number
Block length.Table 5 is from the partial content intercepted in Table 7.1.7.2.1-1 in 3GPP TS36.213 agreement, and the table is corresponding
The number of plies be 1.As can be seen from Table 5: according to ITBSWith RB number, transport block length can be obtained.Due to these transport block lengths
Table is encoded according to 1/3 code rate TURBO and is obtained, when being compiled to NVOC voice service using the TURBO of convolutional encoding or non-1/3 code rate
When code, the table can be reused, the emulation data that can also be encoded according to the TURBO of convolutional encoding or non-1/3 code rate, determination is stung
Under tail convolutional encoding or non-1/3 code rate TRUBO coding under corresponding table: the different numbers of plies corresponds to different tables, each table
With ITBSIt is input with RB number, the length of transmission block is obtained by tabling look-up.
When UE is located at cell edge, MAC SDU corresponding to the speech frame of a 20ms on DTCH is needed to carry out in MAC layer
When segment transmissions, the length of transmission block is the length of each segmentation.When section length is unsatisfactory for byte-aligned, at segmentation end
Bit is filled up in addition, reaches byte-aligned.
Table 5
In the present embodiment, by receiving the configuration information of evolved packet system EPS carrying, include in the configuration information
Narrowband speech encodes NVOC information, and the carrying of EPS described in the NVOC information representation carries out message sink coding using NVOC coding mode；
EPS carrying is established according to the configuration information, and using the corresponding data link layer L2 of the NVOC coding mode and physical layer
L1 processing method carries out the processing of L2 and L1 to the high level data in the EPS carrying, to realize in LET cluster communication system
The purpose of message sink coding is carried out in system using narrowband speech coding mode, while giving the processing scheme of corresponding L2 and L1,
Have the advantages that message sink coding bit rate output is low.
Fig. 2 is a kind of structural schematic diagram for terminal device that one embodiment of the invention provides, as shown in Fig. 2, the equipment packet
It includes:
Receiving module 11 includes narrow in the configuration information for receiving the configuration information of evolved packet system EPS carrying
With voice coding NVOC information, EPS carrying described in the NVOC information representation carries out message sink coding using NVOC coding mode；
Processing module 12, for establishing EPS carrying according to the configuration information, and it is corresponding using the NVOC coding mode
Data link layer L2 and physical layer L1 processing method in the EPS carrying high level data carry out L2 and L1 processing.
Optionally, the processing module, comprising:
First mapping submodule, is used for: when the EPS carry no corresponding Packet Data Convergence Protocol PDCP entity and
When wireless spread-spectrum technology RLC entity, the data in the EPS carrying are mapped directly into corresponding Dedicated Traffic Channel DTCH
On, the data in the EPS carrying are sent to by MAC layer by the DTCH,
Alternatively, when the EPS carries no corresponding PDCP entity, it, will be described when using transparent mode TM RLC entity
Data in EPS carrying are mapped on corresponding DTCH after the processing of the transparent transmission of TM RLC entity, will be saturating by the DTCH
Pass that treated that data are sent to MAC layer；
First MAC layer handles submodule, for the data received to be sequentially assembled into MAC PDU, and passes through phase
The MAC PDU is sent to physical layer by the transmission channel answered, and the MAC PDU does not carry MAC header.
Optionally, the processing module, comprising:
Second mapping submodule, will be described when not including RLC entity for including PDCP entity when EPS carrying
Data in EPS carrying are mapped on corresponding DTCH after the PDCP entity handles, by the DTCH by the EPS
Data in carrying are sent to MAC layer,
Alternatively, when EPS carrying includes PDCP entity, when using TM RLC entity, by the data in the EPS carrying
It is mapped to corresponding DTCH after the processing of the transparent transmission of the PDCP entity handles and the TM RLC entity, passes through the DTCH
Data after the PDCP entity and the TM RLC entity handles are sent to MAC layer；
Second MAC layer handles submodule, for the data received to be sequentially assembled into MAC PDU and by corresponding
Transmission channel the MAC PDU is sent to physical layer, the MAC PDU does not carry MAC header.
Optionally, the processing module, comprising:
First processing submodule, for using tail biting convolutional encoding mode or TURBO coding mode to corresponding transmission channels
On data carry out channel coding, wherein the code rate of the TURBO coding mode is arbitrary bit rate in addition to 1/3 code rate.
Optionally,
The down direction of the EPS carrying is mapped on DSCH Downlink Shared Channel DL-SCH, and the DL-SCH is mapped to physics
On DSCH Downlink Shared Channel PDSCH；
The up direction of the EPS carrying is mapped on Uplink Shared Channel UL-SCH, and the UL-SCH is mapped to physics
On Uplink Shared Channel PUSCH.
Terminal device provided in this embodiment is able to carry out the technical solution of Fig. 1 embodiment, executive mode and beneficial effect
Fruit seemingly, repeats no more herein.
Finally, it should be noted that those of ordinary skill in the art will appreciate that whole in above-described embodiment method or
Part process is that relevant hardware can be instructed to complete by computer program, and the program can be stored in a computer
In readable storage medium storing program for executing, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, described to deposit
Storage media can be disk, CD, read-only memory (ROM) or random access memory (RAM) etc..
Each functional unit in the embodiment of the present invention can integrate in a processing module, be also possible to each unit
It is individually physically present, can also be integrated in two or more units in a module.Above-mentioned integrated module both can be with
Using formal implementation of hardware, can also be realized in the form of software function module.If the integrated module is with software
The form of functional module realizes, and when sold or used as an independent product, also can store and computer-readable deposits at one
In storage media.Storage medium mentioned above can be read-only memory, disk or CD etc..
The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although referring to aforementioned each reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified, or equivalent substitution of some or all of the technical features；And
These are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of voice service processing method of LTE trunked communication system characterized by comprising
The configuration information of evolved packet system EPS carrying is received, includes that narrowband speech encodes NVOC information in the configuration information,
The carrying of EPS described in the NVOC information representation carries out message sink coding using NVOC coding mode；
EPS carrying is established according to the configuration information, and using the corresponding data link layer L2 of the NVOC coding mode and object
Manage the processing that layer L1 processing method carries out L2 and L1 to the high level data in the EPS carrying.
2. the method according to claim 1, wherein described using the corresponding data-link of the NVOC coding mode
Road floor L2 processing method carries out L2 processing to the high level data in the EPS carrying, comprising:
It, will when the EPS carries no corresponding Packet Data Convergence Protocol PDCP entity and wireless spread-spectrum technology RLC entity
Data in the EPS carrying map directly on corresponding Dedicated Traffic Channel DTCH, are held the EPS by the DTCH
Data in load are sent to MAC layer,
Alternatively, when the EPS carries no corresponding PDCP entity, when using transparent mode TM RLC entity, the EPS carrying
On data by TM RLC entity transparent transmission processing after be mapped on corresponding DTCH, after transparent transmission is handled by the DTCH
Data be sent to MAC layer；
The data received are sequentially assembled into MAC PDU by the MAC layer, and will be described by corresponding transmission channel
MAC PDU is sent to physical layer, and the MAC PDU does not carry MAC header.
3. the method according to claim 1, wherein described using the corresponding data-link of the NVOC coding mode
Road floor L2 processing method carries out L2 processing to the high level data in the EPS carrying, comprising:
When EPS carrying includes PDCP entity, when not including RLC entity, the data in the EPS carrying pass through the PDCP
It is mapped to after entity handles on corresponding DTCH, the data in the EPS carrying is sent to by MAC layer by the DTCH,
Alternatively, when using TM RLC entity, the data in the EPS carrying pass through institute when EPS carrying includes PDCP entity
It is mapped to corresponding DTCH after stating the transparent transmission processing of PDCP entity handles and the TM RLC entity, it will be described by the DTCH
Data after PDCP entity handles and the TM RLC entity handles are sent to MAC layer；
The data received are sequentially assembled into MAC PDU by the MAC layer, and will be described by corresponding transmission channel
MAC PDU is sent to physical layer, and the MAC PDU does not carry MAC header.
4. according to the method in claim 2 or 3, which is characterized in that described using the corresponding L1 of the NVOC coding mode
Processing method carries out L1 layers of processing to the high level data in the EPS carrying, comprising:
Channel coding is carried out to the data on corresponding transmission channels using tail biting convolutional encoding mode or TURBO coding mode,
In, the code rate of the TURBO coding mode is the arbitrary bit rate in addition to 1/3 code rate.
5. according to the method described in claim 4, it is characterized in that, the down direction of EPS carrying to be mapped to downlink shared
On channel DL-SCH, the DL-SCH is mapped on Physical Downlink Shared Channel PDSCH；
The up direction of the EPS carrying is mapped on Uplink Shared Channel UL-SCH, and the UL-SCH is mapped to physical uplink
On shared channel PUSCH.
6. a kind of terminal device characterized by comprising
Receiving module includes narrowband speech in the configuration information for receiving the configuration information of evolved packet system EPS carrying
NVOC information is encoded, the carrying of EPS described in the NVOC information representation carries out message sink coding using NVOC coding mode；
Processing module, for establishing EPS carrying according to the configuration information, and using the corresponding data of the NVOC coding mode
Link layer L2 and physical layer L1 processing method carry out the processing of L2 and L1 to the high level data in the EPS carrying.
7. terminal device according to claim 6, which is characterized in that the processing module, comprising:
First mapping submodule, for when the no corresponding Packet Data Convergence Protocol PDCP entity of EPS carrying and wirelessly
When link controls RLC entity, the data in the EPS carrying are mapped directly on corresponding Dedicated Traffic Channel DTCH, are led to
It crosses the DTCH and the data in the EPS carrying is sent to MAC layer,
Alternatively, the EPS is held when using transparent mode TM RLC entity when the EPS carries no corresponding PDCP entity
Data in load are mapped on corresponding DTCH after the processing of the transparent transmission of TM RLC entity, are handled transparent transmission by the DTCH
Data afterwards are sent to MAC layer；
First MAC layer handles submodule, the data received is sequentially assembled into MAC PDU, and by transmitting accordingly
The MAC PDU is sent to physical layer by channel, and the MAC PDU does not carry MAC header.
8. terminal device according to claim 6, which is characterized in that the processing module, comprising:
When not including RLC entity, the EPS is held for including PDCP entity when EPS carrying for second mapping submodule
Data in load are mapped on corresponding DTCH after the PDCP entity handles, are carried the EPS by the DTCH
On data be sent to MAC layer,
Alternatively, when using TM RLC entity, the data in the EPS carrying are passed through when EPS carrying includes PDCP entity
It is mapped to corresponding DTCH after the processing of the transparent transmission of the PDCP entity handles and the TM RLC entity, by the DTCH by institute
Data after stating PDCP entity and the TM RLC entity handles are sent to MAC layer；
Second MAC layer handles submodule, for the data received to be sequentially assembled into MAC PDU, and by corresponding
The MAC PDU is sent to physical layer by transmission channel, and the MAC PDU does not carry MAC header.
9. terminal device according to claim 7 or 8, which is characterized in that the processing module, comprising:
First processing submodule, for using tail biting convolutional encoding mode or TURBO coding mode on corresponding transmission channels
Data carry out channel coding, wherein the code rate of the TURBO coding mode is the arbitrary bit rate in addition to 1/3 code rate.
10. terminal device according to claim 9, which is characterized in that
The down direction of the EPS carrying is mapped on DSCH Downlink Shared Channel DL-SCH, and the DL-SCH is mapped to physical down
On shared channel PDSCH；
The up direction of the EPS carrying is mapped on Uplink Shared Channel UL-SCH, and the UL-SCH is mapped to physical uplink
On shared channel PUSCH.
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